Entries |
Document | Title | Date |
20080198125 | CIRCUIT BOARD AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A circuit board includes; a reference common voltage generating circuit receiving an input voltage from an input node and outputting a reference common voltage to an output node, wherein the reference common voltage generating circuit includes a voltage distribution unit including a first resistor connected between the input node and the output node and a second resistor connected between the output node and a ground, and a sink current generating unit outputting a sink current to the output node, wherein the sink current is adjusted according to a resistance of a setting resistor, and a coupling line coupling the setting resistor and the reference common voltage generating circuit. | 08-21-2008 |
20080204393 | Method, Device and System of Response Time Compensation - Embodiments of the present invention provide an apparatus, system, and method of reproducing a sequence of at least first and second color image frames by controllably activating an array of liquid crystal elements, the array including at least a first liquid crystal element to reproduce first and second sub-pixel values in the first and second frames, respectively. Some demonstrative embodiments may include estimating the first sub-pixel value based on a third sub-pixel value to be reproduced in the second frame by a second liquid crystal element of the array which is shifted in relation to the first liquid crystal element by a location shift value associated with tie first liquid crystal element; and generating an overdrive signal for activating the first liquid crystal element based on a combination of the first and second sub-pixel values. Other embodiments are described and claimed. | 08-28-2008 |
20080211760 | Liquid Crystal Display and Gate Driving Circuit Thereof - A liquid crystal display and a dual gate driving circuit therefor wherein the number of signal lines are reduced by sharing a start pulse and an output signal of a dummy stage. The liquid crystal display includes a timing controller generating an output enable signal, a gate clock, and a signal start signal in response to an external input signal, a level shifter generating a gate clock pulse and a gate clock bar pulse in response to the output enable signal and the gate clock and generating a single start pulse in response to the start signal and the gate clock, and first and second gate driving circuits outputting the gate clock pulse or the gate clock bar pulse as a gate driving signal to the plurality of gate lines in response to the single start pulse. | 09-04-2008 |
20080224981 | Temperature-dependent overdrive circuit for LCD panel and method of implementing the same - A circuit for overdriving an LCD panel according to an image data and a temperature, and the corresponding are disclosed. The circuit includes: a memory for storing a previous image data; a plurality of LUTs, each coupled to receive the previous image data from the memory and a present image data, for storing overdrive values; a first temperature sensor, for sensing the temperature of a first area of the LCD panel to generate a first temperature data; a control circuit, for generating a selection signal and a temperature correction coefficient according to the first temperature data; a selection circuit, coupled to the plurality of LUTs, for selecting one LUT from the plurality of LUTs according to the selection signal and outputting the overdrive value of the selected LUT; and an overdrive processor, for generating adjusted image data according to the overdrive value and the temperature correction coefficient. | 09-18-2008 |
20080224982 | Electro-optical device, driving circuit, and electronic apparatus - The object of the present invention is to decrease a frame size in a case where data lines are driven by using a demultiplexer. The data lines | 09-18-2008 |
20080224983 | METHOD OF COMPENSATING FOR KICK-BACK VOLTAGE AND LIQUID CRYSTAL DISPLAY USING THE SAME - A method and apparatus of compensating for a kick-back voltage to reduce the generation of flicker in a liquid crystal display (LCD). The method of compensating for a kick-back voltage includes correcting input pixel data using a kick-back correction function that meets a condition on which a response characteristic of a voltage detected from a pixel electrode of a liquid crystal cell for a positive input pixel signal and a response characteristic of a voltage detected from the pixel electrode of the liquid crystal cell for a negative input pixel signal become symmetrical without causing a saturation state on a basis of a kick-back voltage measured from an LCD panel to generate corrected pixel data, and driving the LCD panel using the corrected pixel data. | 09-18-2008 |
20080231578 | LVDS display system - A display system comprises a controller having a plurality of TTL inputs and a corresponding plurality of LVDS output pairs, the controller configured to receive display data comprising a first plurality of TTL signals at the plurality of TTL inputs, to convert each of the first plurality of TTL signals to a corresponding LVDS signal, and to output each of the plurality of LVDS signals at one of the plurality of LVDS output pairs. The system further comprises a bus operatively coupled with the controller, the bus having a plurality of parallel channels, each channel being configured to carry one of the plurality of LVDS signals, a LVDS-to-TTL converter operatively coupled with the bus, the LVDS-to-TTL converter being configured to receive the plurality of LVDS signals from the bus and to convert each of the plurality of LVDS signals to a corresponding TTL signal, and a display configured to receive the plurality of TTL signals from the LVDS-to-TTL converter. | 09-25-2008 |
20080231579 | Motion blur mitigation for liquid crystal displays - Visual quality of a liquid crystal display (LCD) panel is enhanced by combining black pixel insertion with response time correction (RTC) to mitigate motion blur. The black pixel insertion is performed during a portion of a current frame to establish a baseline for RTC in a next frame and therefore does not result in an increase in the frame rate of the LCD panel. | 09-25-2008 |
20080231580 | LCD Device Driven by Pre-charge Procedure - The LCD device driven by a pre-charge procedure includes a source driver for generating data signals, a gate driver for generating gate signals, a plurality of data lines for receiving data signals, a plurality of gate lines for receiving gate signals, a plurality of display units for displaying data signals, a pre-charge controller for generating control signals, a plurality of dummy gate lines parallel to the plurality of gate lines for receiving the control signals, a plurality of voltage sources for providing a plurality of voltage levels, and a plurality of dummy switches for pre-charging the voltage levels of the corresponding data lines to specific voltage levels according to the signals of the corresponding dummy gate lines received by the control ends of the dummy switches. | 09-25-2008 |
20080231581 | Liquid Crystal Display Apparatus - A liquid crystal display apparatus enables image display with optimum quality corresponding to the genre of an image to be displayed. The liquid crystal display apparatus controls the emission luminance of a backlight according to the APL of an image signal measured at an APL measuring portion | 09-25-2008 |
20080231582 | DISPLAY DEVCE AND GATE DRIVER THEREOF - A gate driver for driving a display device is disclosed. The gate driver, which includes: a first input buffer configured to for receiving a reference voltage and outputting a first buffered voltage, a control circuit configured to for outputting a plurality of scan starting signals and compensating starting signals, a plurality of compensating output buffers, and a plurality of scan output buffers. Each of the plurality of compensating output buffers is configured to respectively receive one of the compensating starting signals and respectively output a compensating signal, wherein, each compensating output buffer receives the first buffered voltage as power. Each of the plurality of scanning output buffers is configured to respectively receive one of the scan starting signals and output a scan signal. | 09-25-2008 |
20080231583 | Pixel array substrate - This present invention disclose a pixel array substrate comprising a substrate, a plurality of scan lines, a plurality of data lines, a plurality of active elements, a plurality of pixel electrodes, a plurality of first patterned floating lines, and a plurality of first patterned connecting wires. A plurality of pixel fields are formed by the cross scan lines and data lines, and each active element is electrically connected with the corresponding scan line, data line and pixel electrode. Each first patterned floating line overlaps some data lines. Each first patterned connecting wire disposes across some scan line, and overlaps the first patterned floating line disposed on the two sides of the scan line. | 09-25-2008 |
20080231584 | Active matrix type display device - In an active matrix type display device including two source line side drivers for driving a plurality of pixel TFTs, one gate line side driver, two line memories respectively including at least first and second memories, and a controller for controlling the first and second line memories, storing and transmitting of picture data of the two line memories are switched to transmit the data to the two source line side drivers at the same time. | 09-25-2008 |
20080238851 | DISPLAY AND SOURCE DRIVER THEREOF - A pixel circuit has a light emitting diode, a first driving transistor, a second driving transistor, a capacitor, and a switch unit. When a scan signal is asserted, the switch unit couples sources/drains of the second driving transistor respectively to a first and a second source/drain of the first driving transistor, and couples a gate and second source/drain of the first driving transistor together. When the scan signal is de-asserted, the switch unit decouples one of the sources/drains of the second driving transistor from the first/second source/drain of the first driving transistor, and decouples the gate from the second source/drain of the first driving transistor. | 10-02-2008 |
20080238852 | FLAT PANEL DISPLAY AND GATE DRIVING DEVICE FOR FLAT PANEL DISPLAY - A flat panel display includes pixel electrodes, multiplexers and a gate driver. The gate driver has an amorphous silicon gate structure and includes a displacement temporary storage unit having a plurality of shift registers each with a power supply source and a clock terminal. One of a first voltage and a second voltage is selected and transmitted to the power supply source, and one of the first voltage and a clock signal is selected and transmitted to the clock terminal according to an off-controlling signal for causing the pixel electrodes connected to the shift registers to discharge. | 10-02-2008 |
20080238853 | LIQUID CRYSTAL DISPLAY AND DISPLAY PANEL THEREOF - A liquid-crystal-display (LCD) and a display panel thereof are provided. The display panel includes a plurality of pixel row units and a plurality of switch units. Each pixel row unit is connected between a scan line and a potential switch line. The first end of each switch unit receives the common voltage provided by the display panel, and the second end of each switch unit is connected to its corresponding potential switch line. Thus, not only the flicker-noise of the display panel is reduced, but also the display-quality of the LCD is promoted. | 10-02-2008 |
20080238854 | HOLD TYPE IMAGE DISPLAY SYSTEM - The present invention aims to insert a black screen in one frame period to alleviate moving image blur due to overlap recognition of a current frame image and an afterimage of the previous frame and improve the image quality of the moving image, and to set a black insertion rate with respect to one frame period to a value suited for each usage state. An enable signal (VOE) to each gate driver is independently controlled, and a start pulse (VSP) input to write a black signal is performed at an arbitrary timing within one frame period with respect to the gate driver to insert a black image within one frame period. | 10-02-2008 |
20080238855 | Image display apparatus and image display method - An image display apparatus includes a display section having a pixel unit included in a layout of a pixel matrix and provided with a memory unit used for storing a logic level of input image data; a vertical driving section for asserting a scan signal on a scan line provided for the display section; and a horizontal driving section for asserting a driving signal according to the input image data on a signal line provided for the display section. | 10-02-2008 |
20080252585 | Outputting Apparatus - Disclosed is an outputting apparatus connected to a plurality of external apparatus, the outputting apparatus including: a specifying section to specify the one external apparatus among the plurality of external apparatus; a storage controlling section to make a first storing section store switching information; an updating section to update switching information stored in a second storing section by making the second storing section store the switching information stored in the first storing section in a lump; a switching section to perform switching to the one external apparatus on the basis of the switching information stored in the second storing section; an output controlling section; and an inputting section, wherein the outputting controlling section performs predetermined muting processing based on the muting signal while the muting signal is being input by the inputting section to be prohibiting the outputting of the output information by the outputting section. | 10-16-2008 |
20080259019 | Asynchronous display driving scheme and display - A novel method for driving a display includes the steps of defining a modulation period during which a particular intensity value is asserted on a pixel of the display, dividing the modulation period into a plurality of coequal time intervals, receiving a data word, which includes a plurality of equally-weighted bits and is indicative of an intensity value to be displayed by the pixel, updating a signal asserted on the pixel during each of a plurality of consecutive time intervals during a first portion of the modulation period, and updating the signal asserted on the pixel every m | 10-23-2008 |
20080273002 | DRIVING CHIP AND DISPLAY APPARATUS HAVING THE SAME - A driving chip and a display apparatus having the same. The driving chip includes a plurality of driving circuits which generate a driving signal, a plurality of output pads which output the driving signals to external signal lines, a plurality of connection lines which connect the plurality of driving circuits and the plurality of output pads, respectively, wherein at least one of the plurality of connection lines includes a resistance-control unit which controls resistance values of the connection lines to be the same, and reduces a resistance deviation between the connection lines. | 11-06-2008 |
20080278427 | Liquid crystal display device - An LCD with reduced power consumption is described. The LCD includes a liquid crystal panel having a plurality of gate lines and data lines, a data driver supplying a data voltage to the plurality of data lines, a controller generating a current control signal to control an output terminal of the data driver so that the output terminal operates during a first period in which data is outputted from the data driver, and the output terminal does not operate during a second period in which data is not outputted from the data driver, and a gate driver that supplies a scan signal to the plurality of the gate lines. | 11-13-2008 |
20080278428 | Liquid crystal display device - A liquid crystal display (LCD) device having a simplified printed circuit board (PCB) is disclosed. The LCD device includes a first integrated circuit (IC) group operating in accordance with timing control signals to convert digital video data into data voltage and to supply the data voltage to a first data line group, and a second IC group receiving the timing control signals and the digital video data via a first source PCB and LOG wirings and operating in accordance with the timing control signals to convert the digital video data into the data voltage and to supply the data voltage to a second data line group Each IC of the first and second IC groups includes a polarity control signal (POL) generator for generating a polarity control signal to control a polarity of the data voltage, using a part of the timing control signals. | 11-13-2008 |
20080278429 | Liquid crystal display device having controlling circuit for adjusting common voltage - An exemplary liquid crystal display device includes a liquid crystal panel configured for displaying images according to external image data. The liquid crystal panel comprising a plurality of sub-pixel regions and a controlling circuit. The sub-pixel regions are arranged regularly, each of the sub-pixel regions having either a positive polarity or a negative polarity when displaying images. The controlling circuit is configured to adjust a common voltage applied to the liquid crystal panel according to a relationship between variations of the common voltage and polarity information of at least a plurality of the sub-pixel regions during operation of the liquid crystal display device. | 11-13-2008 |
20080284709 | Light-emitting device - According to present invention, system on panel without complicating the process of TFT can be realized, and a light-emitting device that can be formed by lower cost than that of the conventional light-emitting device can be provided. A light-emitting device is provided in which a pixel portion is provided with a pixel including a light-emitting element and a TFT for controlling supply of current to the light-emitting element; a TFT included in a drive circuit and a TFT for controlling supply of current to the light-emitting element include a gate electrode, a gate insulating film formed over the gate electrode, a first semiconductor film, which overlaps with the gate electrode via the gate insulating film, a pair of second semiconductor films formed over the first semiconductor film; the pair of second semiconductor films are doped with an impurity to have one conductivity type; and the first semiconductor film is formed by semiamorphous semiconductor. | 11-20-2008 |
20080284710 | SEMICONDUCTOR DEVICE AND DISPLAY DEVICE - A single-crystal semiconductor layer is separated from a single-crystal semiconductor substrate and is fixed to an insulating substrate to form a TFT over the insulating substrate. Then, a driver circuit is formed using the TFT. The TFT has excellent current characteristics because an active layer is almost in a single-crystal state. Accordingly, a small thin display device with low power consumption can be manufactured. Further, a controller and a shift register which is included in a source driver are operated at the same power supply voltage. Thus, power consumption can be reduced. | 11-20-2008 |
20080291147 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD THEREOF - The present invention provides a liquid crystal display comprising a display panel, a plurality of gate drivers sequentially enabling rows of pixels of the display panel, a plurality of source drivers outputting a plurality of driving signals to the enabled row of the pixels of the display panel, and a timing controller outputting each of a plurality of start pulses to all the source drivers and sequentially enabling the source drivers so that each source driver respectively receives one of the start pulses, wherein each the source drivers latch a plurality of image signals when receiving one of the start pulses. | 11-27-2008 |
20080291148 | MULTILEVEL VOLTAGE DRIVING DEVICE - Provided is a multilevel voltage driving device and system. The multilevel voltage driving device comprises a level converter, which is provided with an AC signal input terminal for inputting an AC signal, a high level output terminal for outputting a high level, and an intermediate level output terminal for outputting an intermediate level; and a switch selector, which is connected with the high level output terminal and the intermediate level output terminal, and which is provided with a control signal input terminal, for inputting a control signal to alternately select the high level and intermediate level, and an output terminal for outputting the selected level. | 11-27-2008 |
20080291149 | PIXEL DITHERING DRIVING METHOD AND TIMING CONTROLLER USING THE SAME - A pixel dithering driving method and a timing controller using the same are provided. The method uses the N low order bits of M bits together with at least one virtual bit to build several pixel dithering patterns. After the timing controller uses M bits of data received by the timing controller to look up a specific high order bit value, a specific low order bit value, and a specific pixel dithering value corresponding to the M bits in a predetermined gray level look up table and decides the output gray levels according to the specific high order bit value, the timing controller can further select a specific pixel dithering pattern from the pixel dithering patterns mentioned above according to the specific low order bit value and the specific pixel dithering value. | 11-27-2008 |
20080303774 | Display Apparatus - A display apparatus includes a substrate having a metal layer, a plurality of scanning signal lines and a plurality of data signal lines which intersect with each other and are disposed on the substrate, a display device which has a display element located at an intersecting position of the scanning and data signal lines and is driven by a voltage signal supplied to the scanning and data signal lines, a plurality of coils disposed in parallel with each other on the substrate, and a circuit for detecting currents passing through the plurality of coils by the action of electromagnetic induction of an electromagnetic wave locally generated at a surface of the display device to determine a generation position of the electromagnetic wave by a position of the coils through which the currents pass. The metal layer as a substrate material is a thin electroconductive metal plate which is flexible and not readily broken. | 12-11-2008 |
20080303775 | Liquid crystal display having logic converter for controlling pixel units to discharge - An exemplary liquid crystal display ( | 12-11-2008 |
20080316163 | Active Matrix Display Devices and Methods of Driving the Same - An active matrix display device has a column driver circuit for providing pixel drive signals to columns of pixels, and comprising current source circuits. Each current source circuit has a supply switch ( | 12-25-2008 |
20090002307 | Display device, driving method of the same and electronic equipment incorporating the same - Disclosed herein is a display device including: a pixel section having pixel circuits arranged to form a matrix with at least a plurality of columns, pixel data being written to each of the pixel circuits via a switching element; at least one scan line disposed to be associated with rows of the pixel circuits and adapted to control the conduction of the switching elements; a plurality of signal lines disposed to be associated with columns of the pixel circuits and adapted to convey the pixel data; and a horizontal driving circuit having a plurality of signal drivers, the plurality of signal drivers being associated with a plurality of groups into which the signal lines are divided, and being adapted to convey the image data supplied to the signal lines. | 01-01-2009 |
20090015535 | DRIVING CIRCUIT FOR A LIQUID CRYSTAL DISPLAY - Provided is a driving circuit for a liquid crystal display which is suitable for reducing a chip size and has improved noise immunity in a circuit which uses a level shifter and is constructed with a channel array. The driving circuit includes: the level shifter which is disposed in a previous stage of a channel region and shifts up a level of a data signal output from a buffer to output the data signal to the channel region; and the channel region which processes an output data of the level shifter in a format requested by a system and outputs a final data in a high or low format, and wherein the level shifter is disposed in a region excluding the channel region. | 01-15-2009 |
20090021465 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - In a liquid crystal display or panel and a method of driving the same, in response to the receipt of a plurality of image control signals each intended for one of the data lines, the image control signals are modified in accordance with different characteristics of the data lines. The modified image control signals are outputted to the respective data lines to drive the liquid crystal display or panel. | 01-22-2009 |
20090040163 | PROGRAMMABLE NONVOLATILE MEMORY EMBEDDED IN A GAMMA VOLTAGE SETTING IC FOR STORING LOOKUP TABLES - A gamma voltage setting IC in an LCD with an OTP memory—a one time programmable nonvolatile memory or an MTP or flash memory—a multiple time programmable nonvolatile memory embedded in for storing lookup tables of the voltages of gamma curves and the common voltage values is capable of outputting a corresponding voltage mode according to the sensed result of a temperature sensor or an ambient luminance sensor. The logic process of the OTP memory and the logic process of the gamma voltage setting IC are completely compatible, and the logic process of the MTP or flash memory only needs two or three photomask processes more than the logic process of the gamma voltage setting IC. | 02-12-2009 |
20090040164 | DIGITAL-ANALOG CONVERTER CIRCUIT - This invention provides a digital-analog converter circuit capable of appropriately correcting the optical characteristics of the liquid crystals according to the change in design or the preference of the user, and achieving goals of miniaturization, cost-lowering, as well as wide design suitability. The digital-analog converter circuit includes a storage device for storing a voltage characteristic curve, a modulating device for generating a frequency signal in accordance with a data from the voltage characteristic curve stored in the storage device in response to a selected data, a variable resistance device connected between a first power source and a second power source, in which the resistance value of the variable resistance device is changed in accordance with the frequency signal from the modulating device, a holding device for holding a voltage generated at the variable resistance device, and an output device for outputting the voltage to a desired output end. | 02-12-2009 |
20090040165 | Amplifying circuit and display unit - Provided is an amplifying circuit and display unit (for example, a liquid crystal display) which achieves reductions in an area and power consumption without needing to build up complicated logic, while maintaining properties, as compared with the existing amplifying circuit and display unit. In the amplifying circuit, a voltage follower is divided into components including an input stage amplifying part for high voltage, an input stage amplifying part for low voltage and multiple output stage amplifying parts. Without changing an input relationship between the input stage amplifying parts for high voltage and for low voltage, an output relationship between the multiple output stage amplifying parts is changed depending on a control signal. Additionally, when the input stage amplifying part and the output stage amplifying part form one amplifying part, the amplifying part is switched to form the voltage follower in response to switching operation. | 02-12-2009 |
20090040166 | Liquid crystal display device - A liquid crystal display device includes a display panel including a display area and a non-display area surrounding the display area, a plurality of gate lines and data lines arranged on the display area to intersect each other, so as to define a plurality of pixel regions, a plurality of thin-film transistors formed at respective intersections of the gate lines and the data lines, a plurality of pixel electrodes formed on the respective pixel regions and connected to the thin film transistors, and at least one first common line provided between the data lines and arranged parallel to the data lines. | 02-12-2009 |
20090046047 | SOURCE DRIVING APPARATUS - A source driving apparatus is disclosed. The source driving apparatus of the present invention is capable enough of driving all pixels in an LCD panel without extremely enhancing the driving capability of the buffers therein to suit an increasing total channel number thereof mainly by means of a novel wiring manner for connecting a plurality of first switches, a plurality of second switches, a plurality of first connection lines and a plurality of second connection lines. | 02-19-2009 |
20090058787 | Image Display System, A Liquid Crystal Display Device, And A Discharge Circuit Of The Liquid Crystal Display Device - The present invention relates to a discharge circuit of a liquid crystal display device which receives a power and controls the charges stored in the pixel units of the pixel matrix of the liquid crystal display device. The discharge circuit includes a control circuit receiving the power and generating a control signal when being disconnected from the power, a horizontal driver and a pre-charge circuit forming a plurality of discharge paths having switches, and a selection circuit receiving the control signal and generating a selection signal for enabling the switches of the discharge paths. | 03-05-2009 |
20090073101 | Software driven display restore mechanism - A method and system for restoring output to a display device. The method includes receiving a request to restore the output, modifying output settings so output is visible on a display device, and invoking an output configuration application. The method and system allow a user to restore the output on a display device after the output has been configured to settings which exceed the capabilities of the display device. | 03-19-2009 |
20090073102 | Hardware driven display restore mechanism - A method and system for restoring output to a display device. The method includes receiving a request to restore the output, modifying output timing so output is visible on a display device, and invoking an output configuration application. The method and system allow a user to restore the output on a display device after the output has been configured to settings which exceed the capabilities of the display device. | 03-19-2009 |
20090073103 | LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - A liquid crystal display device includes: a pixel region including a plurality of pixels; a plurality of storage capacitance lines; a storage capacitor connected between a pixel electrode of each of the pixels and each of the storage capacitance lines; a polarity signal generating circuit that generates a polarity signal, which is repeatedly inverted between a first level and a second level for every frame, in a display region of the pixel region where an image is displayed and that fixes the polarity signal to the first level or the second level in a non-display region where an image is not displayed; a first switching element that switches an electric potential of the storage capacitance line according to the polarity signal generated by the polarity signal generating circuit; and a control circuit that when the display region is changed to the non-display region, makes a control such that a refresh operation of writing a signal corresponding to non-display into the pixel electrode of the pixel corresponding to the non-display region is intermittently performed in some frames and the refresh operation is performed in two or more continuous frames. | 03-19-2009 |
20090085857 | LIQUID CRYSTAL DISPLAY CONTROLLER - The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone. | 04-02-2009 |
20090096737 | DISPLAY DEVICE, DRIVING DEVICE AND DRIVING METHOD THEREOF - In a gate driver of a display device, a plurality of first stages each transmit a first gate signal having a first gate-on voltage to first gate lines, and a plurality of second stages each transmit a second gate signal having a second gate-on voltage to second gate lines and output a carry signal corresponding to the second gate signal. Each first stage outputs the first gate-on voltage based on a third gate-on voltage of the carry signal from a previous second stage, and each second stage outputs the second gate-on voltage based on the third gate-on voltage of the carry signal from the previous second stage. | 04-16-2009 |
20090096738 | DRIVING CIRCUIT CAPABLE OF SIMULTANEOUSLY DRIVING THREE-COLOR BISTABLE LIQUID CRYSTALS - This invention provides a driving circuit for simultaneously driving three-color bistable liquid crystals, which employs a voltage-shift circuit to provide different-color bistable liquid crystals with respective level-shift voltages. A grey-scale voltage is respectively added to the respective level-shift voltages. By this invention, the whole grey-scale voltages are capable of falling in the voltage ranges for displaying grey scales for the different-color bistable liquid crystals. The grey-scale display can be optimized. | 04-16-2009 |
20090109159 | LIQUID CRYSTAL DISPLAY IMAGE PRESENTATION - In one embodiment, a display device comprises a liquid crystal module comprising a matrix of pixels, a backlight assembly, and a controller comprising logic to receive an image comprising at least a first stationary portion and a second moving portion, separate the first stationary portion from the second stationary portion, present the first stationary portion at a first refresh rate and present the second moving portion at a second refresh rate, different from the first refresh rate. | 04-30-2009 |
20090109160 | LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY APPLYING THE SAME - A liquid crystal display panel including a first substrate, a second substrate, scan lines, data lines, pixel unit sets, and a liquid crystal layer is provided. The scan lines, data lines, and pixel unit sets are disposed on the first substrate. A first gap is formed between two adjacent pixel unit sets. Each of the pixel unit sets includes pixel units, and a second main space is formed between two adjacent pixel units. Each of the pixel units includes an active device electrically connected to a scan line and a data line, and a transparent pixel electrode has slits and electrically connected to the active device. The width of the first gap is greater than that of the second gap. | 04-30-2009 |
20090115715 | LIQUID CRYSTAL DISPLAY SOURCE DRIVER INTEGRATED CIRCUIT - A source driver eliminates the need for a level shifter and enables the use of a low voltage digital-to-analog converter by using an operational buffer that performs voltage amplification in addition to driving a TFT panel. | 05-07-2009 |
20090128475 | Method for transmitting control signals and pixel data signals to source drives of an LCD - A method is applicable to an LCD for transmitting control signals and pixel data signals to source drivers. First, control signals are transmitted to each of source drivers in parallel during a control period. Pixel data signals for driving a horizontal pixel line are transmitted to each of the source drivers in parallel during plural pixel data periods. The control signals and the pixel data signals are transmitted through a same set of channels connected to each of the source drivers according to a pixel clock signal. | 05-21-2009 |
20090128476 | Gate driving circuit and display device including the same - Embodiments of the present disclosure provide a display device having a display panel in which gate lines are formed and a gate driving circuit which is connected to the gate lines and outputs gate signals. The gate driving circuit includes a first stage, a second stage which is positioned in rear of the first stage, and a third stage which is positioned in rear of the second stage. The second stage includes a driving controller, a driver, a sustain part, and a controller. | 05-21-2009 |
20090128477 | Display Device Capable of Measuring an Illuminance and Widening a Dynamic Range of the Measured Illuminance - A capacitor charged beforehand is discharged according to a light surrounding a display unit. A data is decreased similarly to the voltage between the electrodes of the capacitor. A trigger signal is outputted if the data becomes equal to or less than a threshold value. A clock signal whose cycle of changing levels gradually becomes long is generated. A count value is updated at each change of the clock signal's level and the updated count value is outputted. The count value is sampled when the trigger signal is outputted. | 05-21-2009 |
20090128478 | LIQUID CRYSTAL DISPLAY DEVICE AND IMAGE DISPLAY METHOD OF THE SAME - To provide a liquid crystal display device which performs pseudo impulsive driving, ensures brightness of a screen, and can improve the contrast of the screen. An arithmetic device for generating insertion images is provided in a liquid crystal display device for realizing pseudo impulsive driving. A moving object region and a background region are extracted from first image data which is input to the arithmetic device; second image data where the moving object region is displayed as a black image or a white image is generated; and a display panel performs display where the second image data of n | 05-21-2009 |
20090135125 | LIQUID CRYSTAL DISPLAY DEVICE - A LCD device adapted to reduce data lines and prevent the deterioration of picture quality characteristics. The LCD device includes: a substrate defined into a plurality of pixels; a plurality of data lines arranged in a first direction on the substrate to divide the pixels in twos; a plurality of gate lines arranged on the substrate in a second direction crossing the first direction; thin film transistors each disposed on the pixels to be electrically connected to the respective gate lines and data lines; pixel electrodes each disposed on the pixels, to be electrically connected to the respective thin film transistors; and compensation electrodes each overlapped with the pixel electrodes adjacent to the respective gate lines in the center of an insulation film, to reduce parasitic capacitances between the pixel electrodes and the gate lines. | 05-28-2009 |
20090140967 | Data Recovery Architecture (CDR) for Low-Voltage Differential Signaling (LVDS) Video Transceiver Applications - The present invention discloses data recovery architecture (CDR) to improve a multi-link system's tolerance to delay mismatches (or skewing effect) in its different links. The architecture is entirely digital and usable in any multi-link transceiver implementation that makes use of a separate clock link and requires timing synchronization between the different data links. | 06-04-2009 |
20090140968 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DECAYING RESIDUAL IMAGE THEREOF - By way of enabling a reset signal while turning off a liquid crystal display, a method for decaying residual image of the liquid crystal display is capable of setting the corresponding gate signal of each of a plurality of gate lines of the liquid crystal display based on the enabled reset signal. Accordingly, enhanced discharging processes on all the storage units of the liquid crystal display for fast decaying residual image can be performed via the data switches of the liquid crystal display turned on by the gate signals being set. The reset operation for performing discharging processes in response to the reset signal can be carried out based on a reset circuit for setting all the gate signals to become high-level signals, or based on a charging/discharging module for furnishing a high-level voltage directly to all the gate lines. | 06-04-2009 |
20090146938 | Display device - In RGB time division drives, there is capacitor coupling due to the effects of fluctuation in the drain lines, and thus, the image quality deteriorates (lateral smearing), so that the display brightness becomes different from the desired display brightness due to delay in the convergence of the fluctuation of the common potential, and thus, it is a goal to prevent the image quality from deteriorating (lateral smearing). | 06-11-2009 |
20090146939 | DISPLAY DRIVE DEVICE AND DISPLAY APPARATUS HAVING SAME - A liquid crystal display apparatus to which the present invention is applied has a first data conversion circuit and a second data conversion circuit. The first data conversion circuit converts each predetermined number of display data included in prepared display data into pixel data in which the respective display data are arranged in a predetermined arranging order and in time-series. The second data conversion circuit is provided for each the predetermined number of signal lines included in the display apparatus and sequentially applies display signal voltages corresponding to the pixel data to the predetermined number of signal lines respectively. The liquid crystal display apparatus equalizes the amounts of charges to be written in respective display pixels by reversing the arranging order of the display data in the pixel data and the order of applying the display signal voltages to the signal lines per field period or per horizontal scanning period. | 06-11-2009 |
20090153460 | Liquid Crystal Display Device and Method of Driving the Same - To change a proportion of a black image display period based on an image brightness in one frame, improving a moving image performance while suppressing a reduction in luminance. A method of driving a liquid crystal display device which includes a liquid crystal display panel having plural pixels, and displays a black image after displaying a video in each pixel, includes: when taking a period for which the video is displayed as a video display period, and a period for which the black image is displayed as a black image display period, based on an image brightness in one frame, changing a ratio of the black image display period to the video display period. | 06-18-2009 |
20090160750 | LIQUID CRYSTAL DISPLAY DRIVER AND LIQUID CRYSTAL DISPLAY DRIVING METHOD FOR IMPROVING BRIGHTNESS UNIFORMITY - The present invention discloses an LCD driver and LCD driving method for improving brightness uniformity, wherein a detection-count circuit is used to calculate a number of waiting voltage offsets of each one of data electrodes during a scanning period, convert the number of waiting voltage offsets into an offset time, shift a data electrode to an intermediate potential during the offset time, and shift the data electrode to a potential for a next piece of data after the offset time is completed. Thereby, the present invention can reduce LCD brightness non-uniformity and promote LCD quality. | 06-25-2009 |
20090160751 | Pixel design for active matrix display - A display pixel arrangement is provided in which the row electrode metal layer is between the pixel electrode layer and the metal layer defining the columns. In this way, it can be used to provide a shield between the pixel electrodes and the column lines, thereby reducing capacitive coupling between adjacent pixels, even if the pixel electrodes overlap the column lines. This improves the performance of digital to analogue conversion, particularly if charge sharing between columns is used. | 06-25-2009 |
20090174645 | SOURCE DRIVER THAT GENERATES FROM IMAGE DATA AN INTERPOLATED OUTPUT SIGNAL FOR USE BY A FLAT PANEL DISPLAY AND METHODS THEREOF - A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal. | 07-09-2009 |
20090195492 | Liquid crystal display device - A liquid crystal display device used in miniaturized portable equipment which adopts dot inversion in performing a display and adopts frame inversion in driving the liquid crystal display device thus acquiring favorable display quality with low power consumption is provided. In a liquid crystal display device which includes a liquid crystal display element and a liquid crystal driver circuit, pixel portions are arranged on both left and right sides with a video signal line sandwiched therebetween. Pixel portions which are connected to an odd-numbered scanning line are formed on a left side of the video signal line and pixel portions which are connected to an even-numbered scanning line are formed on a right side of the video signal line thus performing a display by dot inversion. When the pixels are arranged on a right side of the video signal line, a distribution circuit may be configured to supply video signals outputted from a left-side terminal out of two neighboring terminals of the driver circuit also to the video signal lines which are connected to the right-side terminal. | 08-06-2009 |
20090201242 | SENSING TO DETERMINE PIXEL STATE IN A PASSIVELY ADDRESSED DISPLAY ARRAY - Devices and methods for determining an operational state of a selected display device in an array of display devices. One method includes determining the operational state of a particular display device in the array by measuring an electrical characteristic of a plurality of the display devices, and determining the operational state based at least in part on the three measurements. In some embodiments, the electrical characteristic is capacitance, in other embodiments impedance can be the measured electrical characteristic. Such methods can be applied to IMOD displays and other displays, including LCD displays. | 08-13-2009 |
20090207118 | DATA DRIVING UNIT AND LIQUID CRYSTAL DISPLAY - A data driving unit and a liquid crystal display (LCD) are provided. The data driving unit includes a first buffer, a second buffer, a charge sharing switch connected between an output terminal of the first buffer and an output terminal of the second buffer, and a controller configured to compare a previous line-time data pattern with a current line-time data pattern and generate a control signal for controlling a switching operation of the charge sharing switch according to a comparison result. | 08-20-2009 |
20090207119 | DEMULTIPLEXER DRIVE CIRCUIT - A demultiplexer drive circuit includes a first, a second, a third, a fourth, and a fifth switching devices. The first switching device is connected to the first and the second scan clock signals. The control terminal of the second switching device is connected to the first switching device, and the rest of its terminals are connected to the data line and a first pixel electrode. The control terminal of the third switching device is connected to the first switching device, and the rest of its terminals are connected to the data line and a second pixel electrode. The fourth switching device is connected to the first and the second scan clock signals and its control terminal is connected to the third switching device. The control terminal of the fifth switching device is connected to the fourth switching device, and the rest of its terminals are connected to the data line and a third pixel electrode. The first scan clock signal and the second scan clock signal have a substantially identical pulse width and a phase difference of substantially half of the pulse width. | 08-20-2009 |
20090231261 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device comprising a liquid crystal display panel | 09-17-2009 |
20090243988 | RETRACTABLE PIN TOOL - A device for aligning a LCD panel having circuit elements with driver circuit card assemblies, consisting of retractable pins located around a central platform. The retractable pins extend in order to receive the LCD panel and circuit element assembly and hold it in place as the circuit elements are aligned with driver circuit card assemblies. Once aligned, the drivers and LCD panel can be bonded together. Once bonded, the pins are retracted and the LCD panel and driver assembly is released. The present invention also relates to a method of aligning LCD panels and drivers using retractable pin tools. | 10-01-2009 |
20090243989 | DISPLAY APPARATUS - A display apparatus that includes a controller, a gate driver, a data driver, and a gamma voltage generator is presented. The controller generates image data and a data clock to drive a display unit based on original data and an original control signal received from an exterior. The gate driver provides an image data signal to a data interconnection provided in the display unit. The data driver provides a gate signal to a gate interconnection provided in the display unit. The gamma voltage generator generates gamma voltages serving as a reference in response to the data driver providing the gate signal to the display unit. The gamma voltage generator selectively outputs sub-reference voltages, which are divided from an external reference voltage, and a specific voltage, which is generated from the gamma voltage generator, as the gamma voltages. | 10-01-2009 |
20090267885 | PIXEL CIRCUITRY AND DRIVING METHOD THEREOF - A pixel circuitry for a display apparatus and a driving method thereof are provided. The pixel circuitry includes a storage element, a scan switch, a first control circuit and a second control circuit. The scan switch delivers a pixel signal to the storage element in response to a scan signal during a frame period. The storage element having a first terminal and a second terminal is used for storing the pixel signal. The first control circuit selectively provides a reference voltage to one of the first and the second terminals of the storage element. The second control circuit selectively connects a pixel electrode to one of the first and the second terminals of the storage element. Under the control of the first and the second control circuits, the polarity of the pixel signal stored in the storage element can be changed by adjusting two terminal voltages of the storage element. | 10-29-2009 |
20090267886 | POTENTIAL GENERATION CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE - A potential generation circuit and a liquid crystal display device are provided that are capable of reducing power consumption with a simple circuit configuration. The potential generation circuit is a potential generation circuit for generating a common potential that is applied to a capacitive load, and includes a differential amplifier that has a positive input receiving a given set potential and a negative input receiving the common potential that is negatively fed back, a current amplifier that amplifies the output of the differential amplifier and outputs the common potential, a charge recovery capacitor that has one of its ends connected to a reference potential, and an anti-parallel diode that is connected between the other end of the charge recovery capacitor and the common potential. | 10-29-2009 |
20090278779 | LCD DEVICE BASED ON DUAL SOURCE DRIVERS WITH DATA WRITING SYNCHRONOUS CONTROL MECHANISM AND RELATED DRIVING METHOD - An LCD device having dual source drivers and related driving method are disclosed for performing data signal driving operation by making use of a data writing synchronous control mechanism. The operation of the data writing synchronous control mechanism includes furnishing all image data signals to both the first and second source drivers, latching odd and even image data signals by the first and second source drivers respectively, performing a signal processing process on the odd image data signals for generating a first set of analog data signals by the first source driver, performing a signal processing process on the even image data signals for generating a second set of analog data signals by the second source driver, writing the first set of analog data signals into a plurality of first pixel units, and writing the second set of analog data signals into a plurality of second pixel units. | 11-12-2009 |
20090278780 | LIQUID CRYSTAL DISPLAY AND SWITCHING VOLTAGE CONTROLLING CIRCUIT THEREOF - A liquid crystal display (LCD) and a switching voltage controlling circuit thereof are provided. The LCD includes a display panel and a number of gate drivers. The switching voltage controlling circuit includes a current-controlled switch, a transmission line, and a feedback circuit. A first terminal and a second terminal of the current-controlled switch are respectively coupled to a constant voltage and a first terminal of the transmission line. The transmission line is serially coupled to the gate drivers. Each of the gate drivers generates a switching voltage according to a voltage provided by the transmission line and controls pixel units of the display panel. The feedback circuit regulates an amount of a current passing through the current-controlled switch according to a voltage difference between the first terminal and a second terminal of the transmission line. Thereby, color errors occurring between blocks of the display panel can be reduced. | 11-12-2009 |
20090278781 | TUNABLE CURRENT DRIVER AND OPERATING METHOD THEREOF - A tunable current driver comprising a semiconductor memory device and a selective transistor is provided, in which one of the source/drain pair of the semiconductor memory device is electrically coupled with a lighting device, and one of the source/drain pair of the selective transistor is electrically coupled with the gate electrode of the semiconductor memory device. The semiconductor memory device not only acts as “drive transistor” to drive the lighting device, but also is capable of adjusting the threshold voltage thereof. | 11-12-2009 |
20090289885 | FLAT PANEL DISPLAY - A flat panel display includes a display screen, a first flexible printed circuit, and a second flexible printed circuit. The second flexible printed circuit has a plurality of pads and is electrically connected to the display screen. The first flexible printed circuit is electrically connected between the display screen and the second flexible printed circuit and has a plurality of pins corresponding to the pads. The pins are divided into a plurality of groups, and each the group is respectively located at the different sides of the first flexible. | 11-26-2009 |
20090289886 | DISPLAY PANEL DRIVING CIRCUIT AND DISPLAY APPARATUS - A display panel driving circuit includes a plurality of circuit blocks g aligned in a row direction, in each of which an upstream circuit and a downstream circuit are included and signal transmission is carried out between the upstream circuit and the downstream circuit that belong to one and the same circuit block. In each of the plurality of circuit blocks, the upstream circuit and the downstream circuit are aligned in the column direction. A inter-block common wiring Q is provided for every two circuit blocks. Signal transmission in one (g | 11-26-2009 |
20090289887 | PIXEL DRIVING METHOD, PIXEL DRIVING CIRCUIT FOR PERFORMING THE SAME, AND DISPLAY APPARATUS HAVING THE PIXEL DRIVING CIRCUIT - A pixel driving circuit includes a first gate line, a second gate line, a first data line, a second data line, a pixel part, a first driving part, a second driving part, and a first voltage-changing part. The first driving part applies a first data voltage to the first pixel electrode. The second driving part applies a second data voltage to the second pixel electrode. The first voltage-changing part is connected to the first pixel electrode, the first data line, and the second data line to change a first pixel voltage of the first pixel electrode to increase a voltage difference between the first and second pixel electrodes. | 11-26-2009 |
20090309824 | DISCHARGE CIRCUIT AND DISPLAY DEVICE WITH THE SAME - A discharge circuit of a device including a drive circuit operating by an inputted negative voltage includes: a discharge unit connected between a first input terminal receiving the negative voltage and a second input terminal receiving a ground voltage, and configured to discharge the negative voltage to the ground voltage of the second input terminal in response to a control signal; and a control unit connected between the first input terminal and a third input terminal receiving an operation voltage corresponding to a normal operation mode and an abnormal operation mode of the drive circuit, and configured to generate the control signal in response to an operation signal for determining an operation state and a non-operation state in the normal operation mode of the drive circuit. | 12-17-2009 |
20090315819 | SOURCE DRIVER AND LIQUID CRYSTAL DISPLAY - A source driver and a liquid crystal display are provided. The source driver includes a plurality of pads, a first conducting wire, a second conducting wire, a plurality of first digital-to-analog converters (DACs), and a plurality of second DACs. The first conducting wire is coupled to a first voltage and the first DACs. The second conducting wire is coupled to a second voltage and the second DACs. The first DACs are disposed in a first layer. Output terminals of the first DACs are respectively coupled to a plurality of first pads included in the said pads. The second DACs are disposed in a second layer above the first layer. Output terminals of the second DACs are respectively coupled to a plurality of second pads included in the said pads. Thereby, the transmission quality of the conducting wires for transmitting signals is increased. | 12-24-2009 |
20090315820 | METHOD FOR APPLYING VOLTAGE TO PHOTO-ADDRESSABLE TYPE DISPLAY ELEMENT, POWER SUPPLY DEVICE AND DRIVING DEVICE FOR PHOTO-ADDRESSABLE TYPE DISPLAY ELEMENT - A method for applying a voltage to a photo-addressable type display element includes: switching between +V volt and −V volt by a switching circuit to synthesize a rectangular wave pulse of ±V volt; and applying the rectangular wave pulse of ±V volt to the photo-addressable type display element as a bias voltage. When the rectangular wave pulse is to be switched from one of +V volt and −V volt to the other, (i) the rectangular wave is grounded in the course of the switching from the one of +V volt and −V volt to the other, (ii) an output voltage of an output converter, which is not selected after the switching of the rectangular pulse, is changed to about 0 volt, and then, (iii) the rectangular wave pulse is changed to the other of +V volt and −V volt. | 12-24-2009 |
20090322667 | Data driver - A data driver includes two data processing circuits for respectively providing positive and negative pixel voltages according to first and second pixel data, and a multiplexer circuit including multiplexer units. Each multiplexer unit has first and second input terminals respectively receiving the positive and negative pixel voltages, and an output terminal coupled to a data line. A first switching device has first and second switches serially coupled between the first input and output terminals. A node between the first and second switches is selectively grounded via a third switch. A second switching device has fourth and fifth switches serially coupled between the second input and output terminals. A node between the fourth and fifth switches is selectively grounded via a sixth switch. When the first and second switches turn on, the sixth switch turns on. When the fourth and fifth switches turn on, the third switch turns on. | 12-31-2009 |
20100001941 | Gate driving unit for liquid crystal display device and method of repairing the same - A gate driving unit for a liquid crystal display device including a plurality of liquid crystal pixels, first to Nth gate lines, a plurality of liquid crystal capacitors and a plurality of thin film transistors, includes first and second clock signal lines for providing first and second clock signals; first to Nth shift registers respectively corresponding to the first to Nth gate lines, the first to Nth shift registers receiving one of the first clock signal and the second clock signal and outputting first to Nth scanning signals, respectively; a redundant repair shift register as (N+1)th shift register receiving one of first and second clock signals and outputting a repair scanning signal; a plurality of first switches for respectively connecting one of the first and second clock signal lines to the first to Nth shift registers and the redundant repair shift register; a plurality of second switches for respectively switching a connection of the first to Nth shift registers with the first to Nth gate lines; and a plurality of third switches for respectively switching a connection of the second to Nth shift registers and the redundant repair shift register with the first to Nth gate lines, wherein N is positive integer. | 01-07-2010 |
20100007594 | Multi-domain vertical alignment liquid crystal display - In a multi-domain vertical alignment liquid crystal display wherein a pixel that has two sub-pixels, an additional switching element is used to achieve a voltage differential between the electrode voltage potential in one sub-pixel and the other during and after the charge-sharing period. The electrodes in the sub-pixels are connected to each other through a charge-sharing capacitor and a controlling switching element, such as another transistor. Before the charge-sharing period, the controlling switching element is operated in a non-conducting state and the voltage potentials of the sub-pixel electrodes are substantially equal. During the charge-sharing period, the controlling switching element is operated in a conducting state to facilitate charge-sharing. The additional switching element is used to achieve the voltage differential more effectively and without additional capacitors. | 01-14-2010 |
20100007595 | DRIVING METHOD FOR LIQUID CRYSTAL PANEL AND LCD - In a driving method for a liquid crystal panel, overdriving pixel data is obtained either independently of the FRC pixel data or depending on a difference between the FRC pixel data and previous FRC pixel data. | 01-14-2010 |
20100007596 | DISPLAY APPARATUS - A display apparatus includes a display panel that displays an image in response to a data voltage, a data driving unit that outputs the data voltage in response to a driving signal, and a printed circuit board that outputs the driving signal and that has a static electricity discharge circuit. The discharge circuit discharges high-voltage static electricity, which is introduced into the data driving unit, to ground. Accordingly, the display apparatus prevents the data driving unit from being damaged by the high-voltage static electricity. | 01-14-2010 |
20100013754 | Liquid crystal display device - A liquid crystal display (LCD) device includes data lines, pixel units, a first repair line intersecting and disposed on a first side of the data line, a second repair line intersecting and disposed on a second side of the data line, a delay circuit connected between the first repair line and the second repair line, and a control circuit. The control circuit controls a delay time of the delay circuit according to a position of each pixel unit corresponding to a broken data line. | 01-21-2010 |
20100026617 | METHOD AND DEVICE FOR ACTIVATING SCAN LINES OF A PASSIVE MATRIX LIQUID CRYSTAL DISPLAY (LCD) PANEL - A method for activating scan lines of a passive matrix liquid crystal display (LCD) panel includes activating the scan lines of the passive matrix LCD panel in a selected one of an interlaced scanning mode and a progressive scanning mode that is selected based on a select signal. A device that performs the method is also disclosed. | 02-04-2010 |
20100033416 | ROW-MODULATION GRAY-LEVEL LCD DEVICE AND METHOD THEREOF - A row (common electrode)-modulation gray-level LCD device and a method thereof, which use a row-modulation device to input at least two sequentially generated original common voltage signals to the common electrode of the same row, whereby the sequentially generated original common voltage signals cooperate with the segment voltage signals to generate voltage differences in the common electrode and turn on or turn off the same monochromatic pixel in a time-division mode. The accumulated effect of the time-division turn-on and turn-off states enables the same monochromatic pixel to present gray-pixel. | 02-11-2010 |
20100033417 | Gate line drive circuit - A gate line drive circuit includes: X level shift circuits configured to convert first address signals into second address signals; and a logic circuit configured to drive a selection gate line of N gate lines of a display unit based on the second address signals by supplying a first driving voltage to the selection gate line and by supplying a second driving voltage to non-selection gate lines of the N gate lines other than the selection gate line. X is an integer of 1 or more. N is equal to 2 raised to a power X. The first address signals includes X voltages each of which is a first voltage or a second voltage. The second address signals includes X driving voltages each of which is the first driving voltage or the second driving voltage. | 02-11-2010 |
20100033418 | LIQUID CRYSTAL DISPLAY - The present invention provides a liquid crystal display (LCD). The LCD includes: a liquid crystal panel that includes a plurality of gate lines; and a gate driver that includes a plurality of stages, which are connected to the gate lines, respectively, and sequentially provide a plurality of gate signals to the gate lines, respectively, and a first dummy stage and a second dummy stage that are separated from each other, wherein the first dummy stage is enabled by a carry signal of one of the stages, and the second dummy stage is enabled by a carry signal of the first dummy stage and initializes each of the stages. | 02-11-2010 |
20100039362 | Control IC for color sequential liquid crystal display - A control IC (integrated circuit) for color sequential liquid crystal displays (LCD) is revealed. The control IC includes an interface for receiving a command and at least one display data and a timing generator to generate a scan timing signal, a data timing signal, and a driving timing signal. According to the scan timing signal, a scan driving circuit generates a scan signal that is sent to the color sequential LCD. In accordance with the data timing signal, a data driving circuit receives the display data for generating a data signal sent to the color sequential LCD. According to the driving timing signal, a light-source driving circuit generates a plurality of driving signals sent to the color sequential LCD so as to generate a plurality of color backlights. In accordance with the scan signal, the data signal and the plurality of backlights, the color sequential LCD displays a frame. | 02-18-2010 |
20100045586 | DISPLAY DEVICE AND METHOD THEREOF - A display device includes a pixel electrode disposed on a first substrate, and including a first portion, a second portion and a connection portion disposed between the first portion and the second portion, a capacitor line disposed on the first substrate and between the first substrate and the connection portion, a nonsymmetrical shaped capacitor electrode disposed on the first substrate and overlapping the pixel electrode and the capacitor line, and electrically connected to the pixel electrode through contact holes, and a common electrode disposed on a second substrate and including first and second opening patterns disposed overlapping the first portion and the second portion of the pixel electrode, respectively. | 02-25-2010 |
20100053057 | Driver Integrated Circuit Chip and Display Substrate of Flat Panel Display - A driver integrated circuit chip adapted to electrically couple with a fan-out wiring area includes a side and a plurality of output pins formed at the side. The output pins includes a first pin group and a second pin group. The first pin group is electrically coupled to the fan-out wiring area. The second pin group is located at at least one side of the first pin group and opened. The present invention also provides display substrates of flat panel display each adapted to electrically couple with a plurality of driver integrated circuit chips. | 03-04-2010 |
20100053058 | Display Device - A display device in which a non-display region where drain lines, gate lines and pixels are not formed is formed at a portion within a display region which is constituted of a mass of the pixels, drain route-around lines and gate route-around lines are formed by routing the drain lines and the gate lines separated by the non-display region around the non-display region, a line width of at least one of the drain route-around line and the gate route-around line is set such that the line width at an intersecting portion where the drain route-around line and the gate route-around line intersect with each other differs from the line width at a non-intersecting portion. | 03-04-2010 |
20100066658 | LIQUID CRYSTAL DISPLAY AND METHOD THEREOF - A liquid crystal display (“LCD”) has first, second, and third pixels adjacent to one another in a column direction. The LCD includes a first gate line connected to each of the second and third pixels in common, a capacitance electrode line connected to each of the first and second pixels in common, a first data line connected to the second pixel, and a second data line connected to the first and third pixels. | 03-18-2010 |
20100109994 | LIQUID CRYSTAL DISPLAY - A liquid crystal display is provided. The liquid crystal display includes an edge common line receiving a common voltage through input sources, a plurality of pixel common line patterns that are formed in each of liquid crystal cells constituting each pixel and are electrically connected to one another, and a plurality of longitudinal common lines that are electrically connected to the edge common line to apply the common voltage to the pixel common line patterns. The pixel common line patterns are connected to common electrodes of the liquid crystal cells. Each of the longitudinal common lines is formed between two horizontally adjacent pixels in a direction parallel to data lines. The pixels includes a plurality of pixel units each including two vertically adjacent pixels, and two data lines and three gate lines are assigned to each of the pixel units. | 05-06-2010 |
20100127962 | Liquid Crystal Display Monitor - A liquid crystal display monitor includes a reception end for receiving image signals, a panel, a gate driver coupled to the panel, for driving the panel, a flexible printed circuit (FPC) coupled to the reception end, for transmitting the image signals, and a sequence of source drivers coupled to the panel and one of the source drivers coupled to the FPC, for outputting display data to the panel according to the image signals received from the FPC. | 05-27-2010 |
20100134400 | LIQUID CRYSTAL DISPLAY DEVICE WITH REDUCED POWER CONSUMPTION AND DRIVING METHOD THEREOF - A liquid crystal display (LCD) device with reduced power consumption is provided with a plurality of data lines, a plurality of gate lines, and at least one multiplexer. Each multiplexer can comprise a plurality of switches respectively connected to the corresponding data lines and controlled by a plurality of clock signals and configured to receive an image signal, and selectively output the image signal to one of the data lines via the switches. During a driving period, one of the gate lines can be asserted, and the switches can be turned on simultaneously, then only the first one of the switches remains turned on to transmit the image signal to the corresponding data line, and then the first one of the switches are turned off and the other switches are sequentially turned on one at a time to transmit the image signal to the corresponding data lines. | 06-03-2010 |
20100156775 | ELECTRONIC APPARATUS AND BACKLIGHT UNIT FOR THE SAME - An electronic apparatus having a heat discharging structure which divides light driving sources into driving devices generating high heat and driving devices generating relatively low heat, and a backlight unit for the electronic apparatus is provided. The electronic apparatus includes a liquid crystal display (LCD) panel; a light source module having a light source illuminating the LCD panel and a first board mounting the light source thereon; and a driving module having a first driving device mounted on the first board and a second driving device disposed separately from the first driving device. | 06-24-2010 |
20100156776 | Liquid crystal display device - An LCD device adapted to reduce the number of output channels is disclosed. | 06-24-2010 |
20100164851 | LIQUID CRYSTAL DISPLAY AND PIXEL UNIT THEREOF - One embodiment of the invention is to provide a pixel unit coupled to a data line, a first scan line, and a second scan line. The pixel unit comprises a first sub-pixel unit and a second sub-pixel unit. The first sub-pixel unit comprises a first switching device coupled to the data line, a first storage capacitor and a first liquid crystal capacitor coupled to the first switching device. The second sub-pixel unit comprises a second switching device coupled to the first switching device, a coupling capacitor, and a second storage capacitor and a second liquid crystal capacitor coupled to the second switching device. The coupling capacitor is coupled between the first and second input/output terminals of the second switching device. The control terminal of the first switching device is coupled to the first scan line. The control terminal of the second switching device is coupled to the second scan line. | 07-01-2010 |
20100171687 | DISPLAY DEVICE HAVING SLIM BORDER-AREA ARCHITECTURE AND DRIVING METHOD THEREOF - A display device having slim border-area architecture is disclosed. The display device includes a substrate, a plurality of data lines, a plurality of gate lines, a plurality of auxiliary gate lines and a driving module. The substrate includes a display area and a border area. The data lines, the gate lines and the auxiliary gate lines are disposed in the display area. The driving module is disposed in the border area. The gate lines are crossed with the data lines perpendicularly. The auxiliary gate lines are parallel with the data lines. Each auxiliary gate line is electrically connected to one corresponding gate line. The data and auxiliary gate lines are electrically connected to the driving module based on an interlace arrangement. Further disclosed is a driving method for delivering gate signals provided by the driving module to the gate lines via the auxiliary gate lines. | 07-08-2010 |
20100182226 | Liquid Crystal Display Device and Electronic Device Including the Same - A driver circuit includes first to third transistors, a first circuit, and a second circuit. In the first transistor, a first terminal is electrically connected to a second wiring, a second terminal is electrically connected to a first wiring, and a gate is electrically connected to the second circuit and a first terminal of the third transistor. In the second transistor, a first terminal is electrically connected to the first wiring, a second terminal is electrically connected to a sixth wiring, a gate is electrically connected to the first circuit and a gate of the third transistor. A second terminal of the third transistor is electrically connected to the sixth wiring. The first circuit is electrically connected to a third wiring, a fourth wiring, a fifth wiring, and the sixth wiring. The second circuit is electrically connected to the first wiring, the second wiring, and the sixth wiring. | 07-22-2010 |
20100207863 | PIXEL CIRCUITRY FOR DISPLAY APPARATUS - A pixel circuitry for a display apparatus is provided herein. The pixel circuitry includes a first storage element, and a switching element composed of a plurality of switches. The first storage element has a first terminal receiving a pixel signal and a second terminal coupled to a first voltage. The first storage element is used for storing the pixel signal. The switching element includes a first switch and a second switch respectively conducted in response to a first signal and a second signal. Each of the first switch and the second switch has an input terminal coupled to a data line and an output terminal coupled to the first storage element. The cooperation of the first switch and the second switch has benefit of delivering the pixel signal without influence of body effect. | 08-19-2010 |
20100207864 | LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display panel and a liquid crystal display device in which a position of a singular point of pinwheel alignment is controlled, thereby suppressing rough-grained image and generation of image retention, and in which the response time is improved. The present invention is a liquid crystal display panel including a pair of substrates and a liquid crystal layer interposed therebetween,
| 08-19-2010 |
20100214205 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes pixels, each of which includes a first transistor and a second transistor. The size of the first transistor is larger than the size of the second transistor. In addition, channel widths and gate widths for the first transistor are larger than those of the second transistor. Also, the first transistor is located to be closer to a drain signal line provided for the pixel than the second transistor. In normal operation, the first transistor is coupled to the drain signal line and the second transistor is floating. However, if an abnormality occurs in the first transistor, it is cut off from the drain signal line and the second transistor is connected to the drain signal line by a repair line. | 08-26-2010 |
20100220045 | DISPLAY DEVICE - In a display device, profile emphasizing is performed without using a frame memory while realizing the further reduction of power consumption. A display device includes a display panel provided with a plurality of pixels each of which has a pixel electrode, and a drive circuit which supplies a video signal to the respective pixels through video lines. Here, the drive circuit includes a profile emphasizing circuit which generates profile emphasizing display data which emphasizes a profile in response to display data inputted from the outside and emphasizes a profile portion of an image to be displayed on the display panel, and a memory which stores the profile emphasizing display data. The profile emphasizing circuit includes a latch circuit which sequentially stores continuous k (k≧2) pieces of display data in display data for 1 display line and an arithmetic circuit which generates the profile emphasizing display data based on the k pieces of display data stored in the latch circuit. | 09-02-2010 |
20100245224 | LCD ELECTRODE ARRANGEMENT - Systems, devices, and methods for reducing direct current bias and/or enabling a simplified manner of polarity inversion in liquid crystal display (LCD) devices are provided. In accordance with one embodiment, a device may include a processor, a memory device, and a liquid crystal display having a pixel array including rows and columns of pixels. Each pixel of the pixel array may include a pixel electrode separated from a common electrode by a dielectric passivation layer, and may include a transistor to provide a data signal when the transistor is activated. The pixel array is configured such that a neutral amount of direct current bias is generated on the passivation layer when each row of pixels is activated. The common electrodes of certain pixels may be disposed above their respective pixel electrodes, while the common electrodes of certain other pixels may be disposed below their respective pixel electrodes. | 09-30-2010 |
20100245225 | DRIVING METHOD OF LIQUID CRYSTAL DISPLAY DEVICE - A driving method of a liquid crystal display device includes steps of providing image data to a liquid crystal panel each frame, providing an image-data gate driving signal to the liquid crystal panel and inputting the image data to the liquid crystal panel, providing black data to the liquid crystal panel, providing a black-data gate driving signal to the liquid crystal panel and inputting the black data to the liquid crystal panel, and delaying the black-data gate driving signal when each frame starts. | 09-30-2010 |
20100253611 | Method and apparatus for adaptive black frame insertion - In some embodiments, a display device may include a flat panel display a controller coupled to the flat panel display. The controller may be configured to determine an operating mode for the flat panel display among a plurality of operating modes including at least a first operating mode and a second operating mode. In the first operating mode, the controller may set the flat panel display to utilize a first frame rate and a first inversion mode to save power. In the second operating mode, the controller may set the flat panel display to utilize a second frame rate, a second inversion mode, and black frame insertion to improve image quality. The second frame rate may be faster than the first frame rate. The second inversion mode and black frame insertion may be mutually configured to maintain a DC balanced operation of the flat panel display. Other embodiments are disclosed and claimed. | 10-07-2010 |
20100289734 | PIXEL CIRCUITRY OF DISPLAY DEVICE AND DISPLAY METHOD THEREOF - A pixel circuitry of a display device and a display method thereof are provided herein. The pixel circuitry includes a scan switch, a storage element, and a sampling circuitry. The scan switch has a first terminal coupled to a data line and configured to be asserted according to a scan signal. The storage element is coupled to a second terminal of the scan switch and configured to store a pixel voltage from the data line. The sampling circuitry is configured to sample the stored pixel voltage of the storage element and to obtain a reference voltage for the display device according to the sampled signal. By sampling the stored pixel voltage of the storage element, whether the pixel voltages with different polarities are symmetry can be detected for avoiding flickers. | 11-18-2010 |
20100295765 | LCD DEVICE OF IMPROVEMENT OF FLICKER UPON SWITCHING FRAME RATE AND METHOD FOR THE SAME - A LCD Device of improvement of flicker upon switching frame rate and method for the same are proposed. The LCD device includes a pixel matrix, a timing controller and a gate driver. The timing controller outputs a first Gate-On-Enable signal to the gate driver, when the LCD device displays frame according to a first frame rate. When the first frame rate is switched to a second frame rate, the timing controller outputs a second Gate-On-Enable signal to the gate driver to cause a charge time of the pixel matrix unchanged. It is appreciated that a pulse width of the second Gate-On-Enable signal is equal to a summation of a pulse width of the first Gate-On-Enable signal and an adjusted pulse width. | 11-25-2010 |
20100328199 | LCD CONTROLLER WITH BYPASS MODE - An LCD controller includes a charge pump circuit for generating a charge voltage responsive to an external voltage and a clock signal. An oscillator generates the clock signal responsive to at least one bias voltage. The oscillator has a high power mode of operation and a low power mode of operation. Bias circuitry for applies the at least one bias voltage to the oscillator. The at least one bias voltage is applied to the oscillator from an external source in the high power mode of operation and the at least one bias voltage is applied to the oscillator from a source within the oscillator in the low power mode of operation. An LCD driver voltage circuit generates a plurality of LCD driver voltages for driving segments of an LCD display responsive to the charge voltage. | 12-30-2010 |
20110001692 | INTEGRATED CIRCUITS FOR CONVERTING DIGITAL SIGNALS TO DIGITAL SIGNALS, LCD DRIVERS, SYSTEMS, AND OPERATING METHODS THEREOF - An integrated circuit for converting digital signals to analog signals is provided. The integrated circuit includes a decoder coupled with at least one digital-to-analog converter (DAC). The decoder is capable of receiving at least one n-bit digital signal, decoding m bits of the at least one n-bit digital signal, and outputting at least one (n−m)-bit digital signal and at least one decoded digital signal. The at least one digital-to-analog converter (DAC) is capable of converting the at least one (n−m)-bit digital signal and the at least one decoded digital signal to at least one analog signal. | 01-06-2011 |
20110018792 | MULTIMODE SOURCE DRIVER AND DISPLAY DEVICE HAVING THE SAME - A multimode source driver for driving a display device in provided, including a bus swapping circuit, connecting a first data bus to one of first and second internal buses and connecting a second data bus to the other one of the first and second internal buses according to a swapping control signal, a start pulse swapping circuit, receiving a first start pulse and a second start pulse to provide a first swap start pulse and a second swap start pulse according to the swapping control signal, a first shift register, triggered by the first swap start pulse to generate a first series of latch signals, a second shift register, triggered by the second swap start pulse to generate a second series of latch signals, a shift multiplexer, outputting a third series of latch signals by selecting the first series and second series of latch signals, a plurality of latch multiplexers, each configured to selectively transmit pixel data from the first or second internal bus according to a mode control signal, a plurality of latch units, configured to latch the pixel data from the latch multiplexers, and an output unit, configured to provide a plurality of driving voltages. | 01-27-2011 |
20110025589 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a plurality of pixel circuits which is arranged in a matrix shape; a plurality of data lines; a selection unit which sequentially selects the plurality of pixel circuits for every group which is fewer in number than the number of rows of the pixel circuits; a control unit which sequentially changes the pixel circuits included in the groups; and a data signal supply unit which outputs a data signal to each data line. Each of the plurality of sequentially selected pixel circuits is connected to each of the different data lines. | 02-03-2011 |
20110037688 | Liquid Crystal Display and Operation Method Thereof - A pixel unit in the present invention is divided into two sub-pixels. Each sub-pixel includes a thin film transistor, a liquid crystal capacitor and a storage capacitor. The two transistors respectively located in different sub-pixels are connected to different scan lines. One of the two transistors is connected to the data line through another transistor. Therefore, two different pixel voltages are formed in a pixel. | 02-17-2011 |
20110043440 | Display Device - A display device is disclosed. According to the present invention, the display device comprises a bottom substrate, a plurality of interlayers, a first passivation layer, a bottom electrode, a second passivation layer, a top electrode and a top substrate. The interlayers are formed on the bottom substrate, including a patterned polysilicon layer, a data line and a gate line disposed therein. The first passivation layer is formed on the interlayers. The bottom electrode is formed on the first passivation layer. The second passivation layer is formed to cover the bottom electrode. The top electrode is formed on the second passivation layer at a position corresponding to the bottom electrode to form a storage capacitance. | 02-24-2011 |
20110063200 | OUTPUT BUFFER OF A SOURCE DRIVER IN A LIQUID CRYSTAL DISPLAY HAVING A HIGH SLEW RATE AND A METHOD OF CONTROLLING THE OUTPUT BUFFER - Provided is an output buffer for a source driver of an LCD with a high slew rate, and a method of controlling the output buffer. The output buffer, which outputs a source line driving signal for driving a source line of the LCD, includes: an amplifier section amplifying an analog image signal; an output section outputting the source line driving signal in response to a signal amplified by the amplifier section; and a slew rate controller section, setting a capacitance of a capacitor section to a first capacitance, during a first charge sharing period in which the source line is precharged to a first precharge voltage, setting the capacitance of the capacitor section to a second capacitance smaller than the first capacitance during a second charge sharing period in which the source line driving signal is supplied to the source line, and setting the capacitance of the capacitor section to the first capacitance while the source line driving signal is maintained after the second charge sharing period. | 03-17-2011 |
20110074664 | Integrated Method of Detecting an Image Defect in a Liquid Crystal Screen - An integrated method of detecting an image defect in an LCD screen consists in verifying the consumption of current on a power supply bus of the image display means (row driver | 03-31-2011 |
20110128214 | DISPLAY PANEL - A display panel includes an array substrate, an opposite substrate and a display medium layer. A plurality of ring-like common lines of the array substrate are respectively located between two adjacent scan lines, and a plurality of date lines intersect with the scan lines and the ring-like common lines. Each pixel unit of the array substrate includes an active device, a pixel electrode and a connecting line. Each of the connecting line intersects with one of the scan lines and is electrically connected to the two adjacent ring-like common lines so as to connect the ring-like common lines to form a meshed common line. A transparent region is defined by a black matrix layer of the opposite substrate and the ring-like common lines. The black matrix layer does not cover the ring-like common lines at the corner of the transparent region near the connecting lines. | 06-02-2011 |
20110128215 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - An LCD device adapted to cut costs through the simplification of circuitry is disclosed. The LCD device includes a timing controller that includes: an inter-integrated circuit driver and a memory which are configured to communicate with an external system using an inter-integrated circuit protocol; and a logic element configured to operate a first logic signal from a first write protection terminal of the external system with a second logic signal from a second write protection terminal of the inter-integrated circuit driver, and to apply the operated logic signal to the memory. The memory replies to the operated logic signal from an output terminal of the logic element and performs a write operation. | 06-02-2011 |
20110260957 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a first substrate and a second substrate facing each other; a switching element disposed on the first substrate; a pixel electrode connected to the switching element and supplied with a data voltage; an opposing electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate and including liquid crystal molecules. The pixel electrode includes a cutout and a liquid crystal direction controller that are alternately disposed. The cutout and the liquid crystal direction controller divide the pixel electrode into a plurality of sub-regions, and inclination directions of the liquid crystal molecules are different according to the plurality of sub-regions when the pixel electrode is supplied with the data voltage. The liquid crystal direction controller is concave downward or convex upward with respect to a surface of the first substrate. | 10-27-2011 |
20110285614 | SEMICONDUCTOR DEVICE - A semiconductor device capable of displaying a still image with low consumption power is provided. In the semiconductor device incorporated with a semiconductor display device capable of displaying the still image, a memory portion is mounted on a substrate on which a pixel portion is formed. As a mounting method, the memory portion is formed on the substrate on which the pixel portion is formed or a stick driver including the memory portion is used. When the still image is displayed using image data stored in such a memory portion, the still image can be displayed by inputting only simple control signals from the outside of the semiconductor device. Thus, there are provided the semiconductor display device capable of displaying the still image with low consumption power and the semiconductor device incorporated with the semiconductor display device. | 11-24-2011 |
20120127068 | SEMICONDUCTOR CIRCUIT, SCANNING CIRCUIT AND DISPLAY DEVICE USING THESE CIRCUITS - In a semiconductor circuit a floating node is set to any voltage by utilizing a control signal applied to a refresh terminal and has a period shorter than that of a clock signal. The circuit includes first and second transistors connected between a first clock terminal and first power supply terminal, third and fourth transistors connected between the refresh terminal and the first power supply terminal, and fifth and sixth transistors connected between a second power supply terminal and the first power supply. Gates of the fourth and fifth transistors are connected to an input terminal, a gate of the third transistor is connected to a second clock terminal, a gate of the first transistor is connected to a node between the fifth and sixth transistors, gates of the second and sixth transistors are connected, and a node between the first and second transistors is connected to an output terminal. | 05-24-2012 |
20120169579 | MEMORY DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE EQUIPPED WITH MEMORY DEVICE - A transistor (N1) has a gate terminal connected to a word line (Xi( | 07-05-2012 |
20120169580 | Liquid Crystal Display Device - A memory liquid crystal display device includes a transistor (N | 07-05-2012 |
20120229369 | LIQUID CRYSTAL DISPLAY AND PIXEL UNIT THEREOF - The invention is to provide a pixel unit coupled to a data line, a first scan line, and a second scan line. The pixel unit comprises a first sub-pixel unit and a second sub-pixel unit. The first sub-pixel unit comprises a first switching device coupled to the data line, a first storage capacitor and a first liquid crystal capacitor coupled to the first switching device. The second sub-pixel unit comprises a second switching device coupled to the first switching device, a coupling capacitor, and a second storage capacitor and a second liquid crystal capacitor coupled to the second switching device. The coupling capacitor is coupled between the first and second input/output terminals of the second switching device. The control terminal of the first switching device is coupled to the first scan line. The control terminal of the second switching device is coupled to the second scan line. | 09-13-2012 |
20130021231 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device ( | 01-24-2013 |
20130120231 | DISPLAY DEVICE - Disclosed is a display device. The display device includes first and second substrates, a plurality of gate lines and data lines, a connection line, a signal line, and a first bridge. The first and second substrates face each other. The gate lines and data lines are formed on the first substrate to define a plurality of pixels by an intersection therebetween. The connection line is formed on the first substrate to be electrically connected to the gate line. The signal line is formed on the second substrate for supplying a signal to the gate line. The first bridge is formed on the second substrate for electrically connecting the signal line and the connection line. | 05-16-2013 |
20130120232 | DRIVING APPARATUS FOR LIQUID CRYSTAL DISPLAY - A driving apparatus for a liquid crystal display (LCD) is provided. The driving apparatus includes a plurality of data driving ICs and a control board. The data driving ICs are used for receiving and transmitting a clock signal, a plurality of data signals and a first reference voltage from the 1 | 05-16-2013 |
20130141321 | Driving Circuit, Liquid Crystal Panel, LCD, And Driving Method - The invention discloses a driving circuit, a liquid crystal panel, a liquid crystal display (LCD), and a driving method. A data driving circuit of a liquid crystal panel comprises a plurality of data driving chips. A plurality of first sub-voltage dividing circuits and second controllable sub-voltage dividing circuits are connected in series between said data driving chips and the common electrode of the liquid crystal panel, and each first sub-voltage dividing circuit and each second sub-voltage dividing circuit are connected by a data line of the liquid crystal panel. In the invention, two control voltages can be obtained only by controlling the second sub-voltage dividing circuit, which is only one distortion correction (Gamma) circuit used, thereby simplifying the circuit structure, saving PCB space, and reducing the cost. | 06-06-2013 |
20130181891 | DISPLAY DEVICE - To provide a plural-viewpoint display device having an image separating optical element such as a lenticular lens or a parallax barrier, which is capable of achieving a high image quality by suppressing deterioration in the display image quality caused when a block division driving method is employed, and to provide a terminal device, a display panel, and a driving method thereof, which can be preferably used for those devices. A pixel group configured with pixels for displaying a right-eye image includes a pixel connected to a data line phase-deployed in the first phase of a block division driving method, and a pixel connected to a data line phase-deployed in the third phase, and a pixel connected to a data line phase-deployed in the second phase. In this manner, it is designed to have no deviation in the phase deployment orders in the pixel groups for each viewpoint. | 07-18-2013 |
20130278489 | DISPLAY PANEL DRIVING CIRCUIT AND DISPLAY DEVICE - A scanning line driving circuit includes an arithmetic circuit for generating an operation result for specifying a unit register for outputting an output signal by means of an arithmetic process on an output number control signal for specifying the number of signals to be outputted. An input stage of each unit register is provided with a signal control circuit for controlling whether to allow the unit register to output an output signal based on the operation result. | 10-24-2013 |
20130278490 | DISPLAY APPARATUS - A transmissive-type display device having a display area which is sequentially scanned; and a lighting device arranged on a rear face of the display device, including lighting units arranged so as to be aligned in a direction from one toward the other end portion side along a direction in which the display area is sequentially scanned. The lighting units are in a light emitting state over a light emitting period after sequential scanning of display units including portions of the display area corresponding to the lighting units is completed, and the lighting units are sequentially scanned from one toward the other end portion side in accordance with the sequential scanning of the display area. A length of waiting time from the completion of sequential scanning of the display unit until the corresponding lighting unit emits light is nonlinearly decreased. | 10-24-2013 |
20140009375 | LIQUID CRYSTAL DISPLAY DEVICE AND RELATED ALIGNMENT METHOD - A liquid crystal display device includes a display panel, a multiplexer, an alignment circuit and a short bar circuit. The multiplexer is configured to provide a plurality of output data signals according to a plurality of switch control signals and an input data signal. During the alignment period, the alignment circuit is configured to provide a curing voltage to the display panel, and the short bar circuit is configured to couple the multiplexer to a predetermined voltage. | 01-09-2014 |
20140028537 | LIQUID CRYSTAL PANEL AND MANUFACTURING METHOD THEREOF - A liquid crystal panel includes an array substrate. The array substrate forms a peripheral circuit area including a COF module crimping area and a shorting bar area located outside the COF module crimping area, the shorting bar area forming at least one detecting circuit being connected to scan lines or data lines on the array substrate and being removed after the liquid crystal panel is detected. In the present disclosure, the at least one detecting circuit formed in the shorting bar area is removed after the liquid crystal panel is detected, thus, a safe area and a laser cutting area located outside the COF module crimping area can be omitted to improve the utilization rate of the liquid crystal panel. | 01-30-2014 |
20140035801 | MEMORY DEVICE WITH ONE-TIME PROGRAMMABLE FUNCTION, AND DISPLAY DRIVER IC AND DISPLAY DEVICE WITH THE SAME - A display driver IC with a built-in memory device having a one-time programmable function is provided. The memory device includes: a cell array comprising a plurality of one-time programmable unit cells and configured to receive a writing voltage generated from an internal voltage generating unit to operate upon writing operation; a detecting unit configured to detect a change of the writing voltage; and a controlling unit configured to control the internal voltage generating unit and the unit cells according to an output signal of the detecting unit. | 02-06-2014 |
20140078033 | Driver Circuit for Reducing IC Malfunction and Liquid Crystal Display Panel Comprising Same - A driver circuit and a liquid crystal display panel for reducing IC malfunction are provided. The driver circuit includes a source driver IC, a gate driver IC, and a wire on array, wherein the source driver IC and the gate driver IC connects through the wire on array. The source driver IC provides a signal to the gate driver IC through the wire on array. The driver circuit further includes a negative feedback module electrically connected with the wire on array to be configured to keep the wire on array voltage constant. This invention also provides a liquid crystal display panel using the driver circuit. Through the above method of this invention the driver circuit and a liquid crystal display panel for reducing IC malfunction can avoid the gate driver IC to generate the malfunction caused by the voltage fluctuation of the array and improve the display quality of the liquid crystal display panel. | 03-20-2014 |
20140085175 | DISPLAY DEVICE - A display device includes a display portion, a source driver that is connected to a second end of a source signal line to output to the source signal line a first source signal for a first pixel electrode and a second source signal for a second pixel electrode, a gate driver that outputs first and second gate signals to first and second gate signal lines, and a controller that controls the gate driver and the source driver to control output timings of the first and second gate signals relative to output timings of the first and second source signals. The controller sets a first time interval from the output timing of the first source signal to the output timing of the first gate signal to be longer than a second time interval from the output timing of the second source signal to the output timing of the second gate signal. | 03-27-2014 |
20140210698 | DRIVING METHOD FOR REDUCING EMI AND DEVICE USING THE SAME - A driving method for reducing EMI in a driving device includes detecting a voltage difference between a first display voltage and a second display voltage which correspond to the same pixel, for generating a detecting signal; and adjusting an operating method of a charge sharing switch utilized for performing charge sharing in the driving device according to the detecting signal. | 07-31-2014 |
20140210699 | LCD DEVICE BASED ON DUAL SOURCE DRIVERS WITH DATA WRITING SYNCHRONOUS CONTROL MECHANISM AND RELATED DRIVING METHOD - An LCD device having dual source drivers and related driving method are disclosed for performing data signal driving operation by making use of a data writing synchronous control mechanism. The operation of the data writing synchronous control mechanism includes furnishing all image data signals to both the first and second source drivers, latching odd and even image data signals by the first and second source drivers respectively, performing a signal processing process on the odd image data signals for generating a first set of analog data signals by the first source driver, performing a signal processing process on the even image data signals for generating a second set of analog data signals by the second source driver, writing the first set of analog data signals into a plurality of first pixel units, and writing the second set of analog data signals into a plurality of second pixel units. | 07-31-2014 |
20140218275 | DISPLAY DEVICE AND TERMINAL DEVICE - To provide a plural-viewpoint display device having an image separating optical element such as a lenticular lens or a parallax barrier, which is capable of achieving a high image quality by suppressing deterioration in the display image quality caused when a block division driving method is employed, and to provide a terminal device, a display panel, and a driving method thereof, which can be preferably used for those devices. A pixel group configured with pixels for displaying a right-eye image includes a pixel connected to a data line phase-deployed in the first phase of a block division driving method, and a pixel connected to a data line phase-deployed in the third phase, and a pixel connected to a data line phase-deployed in the second phase. In this manner, it is designed to have no deviation in the phase deployment orders in the pixel groups for each viewpoint. | 08-07-2014 |
20140340293 | BIDIRECTIONAL SHIFT REGISTER AND IMAGE DISPLAY DEVICE USING THE SAME - A display device including a bidirectional shift register circuit, including: a plurality of cascade-connected register circuits; various circuits for setting various nodes to various voltage levels responsive to various signals input to various terminals; and an output circuit which outputs the clock pulse as an output pulse when the voltage of the first node is high level, wherein, at the forward shift operation, the bottom dummy register circuit is not input the reset signal and the first node of the bottom dummy register circuit is reset if the initial reset circuit of the bottom dummy register circuit receives the backward trigger signal, and wherein, at the backward shift operation, the top dummy register circuit is not input the reset signal and the first node of the top dummy register circuit is reset if the initial reset circuit of the top dummy register circuit receives the forward trigger signal. | 11-20-2014 |
20150015472 | DISPLAY PANEL DRIVING APPARATUS - The present disclosure provides a display panel driving apparatus for driving a display panel including a plurality of display cells, in accordance with an inputted image signal, including, a first latch section that successively reads and holds a pixel data piece for each pixel based on the inputted image signal, a second latch section that successively reads and outputs pixel data pieces every Q pieces (Q is an integer equal to or larger than 2) with a predetermined time difference therebetween in accordance with a load signal, a drive potential generating section that generates a drive potential to drive each of the display cells based on the outputted pixel data pieces, and an output gate section that applies the drive potentials to the respective display cells of the display panel, simultaneously after an elapse of a predetermined time period from a timing of supplying the load signal. | 01-15-2015 |
20150015473 | DISPLAY DRIVING CIRCUIT AND DISPLAY DEVICE - Disclosed are a display driving circuit and a display device. The display driving circuit includes an output buffer unit that outputs a pair of pixel signals, an output switch unit that directly transfers the pair of pixel signals to a pair of output lines or transfers the pair of pixel signals to the pair of output lines such that the pair of pixel signals cross each other in correspondence with repetitive panel charging/discharging periods, and a charge sharing switch unit that controls charge sharing of the pair of output lines in correspondence with a charge sharing period between the panel charging/discharging periods, and provides a variable connection resistance value for the charge sharing. Consequently, power consumption and heat generation of the display driving circuit are reduced. | 01-15-2015 |
20150029082 | GATE DRIVE CIRCUIT AND DISPLAY APPARATUS HAVING THE SAME - A gate drive circuit includes a shift register having a plurality of stages, in which an n-th stage (‘n’ is a natural number) of the plurality of stages is connected to at least one subsequent stage. The n-th stage includes a pull-up part configured to output a high voltage of an n-th gate signal using a high voltage of a clock signal as in response to a high voltage of a control node, a control pull-down part configured to pull-down a voltage of the control node into a low voltage in response to a carry signal outputted from at least one of next stages of the n-th stage and receiving a back-bias voltage corresponding to the low voltage, and a carry part configured to output the high voltage of the clock signal as an n-th carry signal in response to a high voltage of the control node. | 01-29-2015 |
20150042550 | DISPLAY PANEL HAVING REPAIRING STRUCTURE - A display panel having a repairing structure has a display region and a periphery circuit region surrounding the display region. At least one scan line, at least one first connection line and a gate driver are positioned on the periphery circuit region. The gate driver is configured to output a gate signal to the scan line via the connection line. The repairing structure comprises a first repairing wire and a driving chip positioned on the periphery circuit region. The driving chip is located at one end of the first repairing wire. The driving chip is configured to output a repairing gate signal to the connection line via the first repairing wire when the gate signal provide to the scan line from the gate driver is abnormal. | 02-12-2015 |
20150054724 | LIQUID CRYSTAL DEVICE AND DISPLAY DEVICE - A display device includes a common electrode receiving a common voltage, a display media layer, and a substrate. The substrate defines a display area and a border area surrounding the display area. The display area includes a plurality of pixel electrodes and a plurality of signal lines. The pixel electrodes receive data voltages. The media layer displays images based on the data voltages and the common voltage. The signal lines transmit signals. The border area includes a common electrode line and at least one electrostatic discharge component. The common electrode line is connected to the common electrode and transmits the common voltage to the common electrode. Each electrostatic discharge component is connected between a signal line and the common electrode line. | 02-26-2015 |
20150084847 | DC-DC CONVERTER AND DISPLAY APPARATUS HAVING THE SAME - A direct-current-to-direct-current (“DC-DC”) converter includes an inductor to which an input voltage is applied, a diode connected to the inductor, a switching element connected between the inductor and the diode, a capacitor group disposed adjacent to the diode and comprising one or more capacitors, and an output voltage pattern connected to the diode and the capacitor group and which outputs an output voltage, where the capacitor group covers a first side of the output voltage pattern and a second side of the output voltage pattern opposite to the first side of the output voltage pattern. | 03-26-2015 |
20160012791 | LIQUID CRSYTAL DISPLAY DRIVING METHOD | 01-14-2016 |
20160071469 | LIQUID CRYSTAL DISPLAY DEVICE AND RELATED ALIGNMENT METHOD - A liquid crystal display device includes a display panel, a multiplexer, an alignment circuit and a short bar circuit. The multiplexer is configured to provide a plurality of output data signals according to a plurality of switch control signals and an input data signal. During the alignment period, the alignment circuit is configured to provide a curing voltage to the display panel, and the short bar circuit is configured to couple the multiplexer to a predetermined voltage. | 03-10-2016 |
20160118014 | DISPLAY PANEL AND DISPLAY DEVICE - The present invention belongs to the field of display technology, and provides a display panel and a display device which can solve the problem that the common voltage compensation circuit in the prior art produces a disturbance on the display panel. The display panel of the present invention comprises at least one gate drive chip and at least one common voltage compensation circuit, wherein the common voltage compensation circuit is provided inside the gate drive chip. The display device of the present invention comprises above display panel. | 04-28-2016 |
20160148590 | VOLTAGE ADJUSTMENT CIRCUIT FOR COMMON ELECTRODE AND DISPLAY APPARATUS - Disclosed are a voltage adjustment circuit for a common electrode and a display apparatus, which are capable of improving a sensitivity and a precision in an adjustment of a voltage of the common electrode. The voltage adjustment circuit for the common electrode includes a first fixed resistor, a second fixed resistor and a first adjustable resistor and the voltage adjustment circuit for the common electrode further includes an adjustment module, which is connected to an output terminal of the voltage adjustment circuit for the common electrode and an adjustable terminal of the first adjustable resistor, and is configured to cooperate with the first adjustable resistor to adjust a resistance of the voltage adjustment circuit for the common electrode in order to adjust the output voltage of the common electrode. | 05-26-2016 |