Patent application number | Description | Published |
20090128466 | METHODS AND APPARATUS FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE - A driving circuit for driving a display panel comprising: (i) a printed circuit board, (ii) an input interface to receive input video signal, (iii) a timing controller to control timing signal for the display panel, (iv) a plurality of first source drivers, and (v) at least one second source driver, and wherein the display cells connected to the i-th data line and the (2j+1)-th or (2j+2)-th gate line, where j=0, 2, 4, . . . , <[Y/2], and i=1, 2, . . . , M, where Y and M are positive integers, receive data signals from corresponding data lines | 05-21-2009 |
20090160828 | DISPLAY, DATA CONTROL CIRCUIT THEREOF, AND DRIVING METHOD FOR THE SAME - A driving method for a display is provided. The display includes a plurality of data lines. The driving method includes the steps of: providing a black frame data output signal, and a trigger signal; receiving at least one of a plurality of normal frame data and a plurality of black frame data from a receiving terminal; when the trigger signal is enabled, and the black frame data output signal is not enabled, outputting the normal frame data from an output terminal when the trigger signal changes status so as to allow the display to display the normal frame; and outputting the black frame from the output terminal when both of the trigger signal and the black frame data output signal are enabled, and when the trigger signal changes status so as to allow the display to display the black frame, and sustaining a status of the receiving terminal. | 06-25-2009 |
20110050680 | METHOD AND APPARATUS FOR DRIVING A LIQUID CRYSTAL DISPLAY DEVICE - The present invention in one aspect relates to a source driver comprising a first digital-to-analog converter with a positive polarity (PDAC), a second digital-to-analog converter with a negative polarity (NDAC), a first operational amplifier and a second operational amplifier. Each operational amplifier is characterized with a 1st & 2nd stage and an output stage. Both the PDAC and NDAC are coupled to the first and second operational amplifiers through a first pair of switches. The 1st & 2nd and output stages of the first operational amplifier are coupled to the 1st & 2nd and output stages of the second operational amplifier through a second pair of switches. The first and second operational amplifiers are coupled to odd data lines and even data line through a third pair of switches. Further, the amplitudes of the operational voltages for the PDAC, the NDAC and the output stages first and second operational amplifiers are set to be between the supply voltage and the ground voltage. Accordingly, the power consumption and the operational temperature are substantially reduced. | 03-03-2011 |
20110199369 | DISPLAY WITH CLK PHASE OR DATA PHASE AUTO-ADJUSTING MECHANISM AND METHOD OF DRIVING SAME - One aspect of the present invention relates to a display for displaying data. In one embodiment, the display includes a timing controller (TCON) configured to provide a plurality of data signals to be displayed, at least one clock signal and a data training code corresponding to at least one clock signal; a plurality of source drivers, each source driver configured to receive one or more corresponding data signals, the at least one clock signal and the data training code from the TCON, generate a plurality of data phase signals according to the one or more corresponding data signals, select one data signal from the plurality of data phase signals as an optimal data signal according to the data training code, and latch the one or more corresponding data signals according to the optimal data signal; and a display panel configured to display the plurality of latched data received from the plurality of source drivers. | 08-18-2011 |
20120086677 | DRIVING CIRCUIT AND METHOD FOR DRIVING A DISPLAY - In one aspect of the invention, a method for driving a display includes the steps of processing input image signals into pixel signals associated with the pixel matrix and grayscales of the display, generating a polarity control signal POL, and determining transmitting paths of the pixel signals according to the polarity control signal POL, and writing the pixel signals into the pixel matrix of the display along the determined transmitting paths. | 04-12-2012 |
20120139893 | METHOD AND APPARATUS FOR DRIVING A LIQUID CRYSTAL DISPLAY DEVICE - A source driver comprising a first DAC with a positive polarity (PDAC), a second DAC with a negative polarity (NDAC), first and second operational amplifiers. Each operational amplifier is characterized with a 1st & 2nd stage and an output stage. The PDAC and NDAC are coupled to the first and second operational amplifiers through a first pair of switches. The 1st & 2nd and output stages of the first operational amplifier are coupled to the 1st & 2nd and output stages of the second operational amplifier through a second pair of switches. The first and second operational amplifiers are coupled to odd data lines and even data line through a third pair of switches. | 06-07-2012 |
20130301750 | METHODS AND SYSTEMS FOR MULTI-LEVEL DATA TRANSMISSION - A method for multi-level data transmission includes encoding a data signal to be transmitted into N multi-level signals in accordance with an encoding table, where the data signal is characterized with a stream of binary data segments each of which has a data length of M bits, transmitting simultaneously the N multi-level signals through N data transmission channels, respectively; and decoding the N multi-level signals into the data signal by comparing each two of the N multi-level signals transmitted through the two data transmission channels to obtain a respective bit of the M bits of each binary data segment of the data signal based on comparison between the two corresponding multi-level signals. | 11-14-2013 |
20140198083 | DRIVING CIRCUIT AND METHOD FOR DRIVING A DISPLAY - In one aspect of the invention, a driving circuit for driving a display having pixels spatially arranged in a matrix form, includes an input interface for processing input image signals into pixel signals associated with the pixel matrix and grayscales of the display; a timing controller for generating a polarity control signal; a pair of multiplexors electrically coupled to the input interface for receiving the pixel signals therefrom and controlled by the polarity control signal for selecting transmitting paths of the parallel pixel signals; a data register electrically coupled to the pair of multiplexors for stored the pixel signals including its transmitting paths determined by the polarity control signal; and a source driver having a latch array electrically coupled to the data register for receiving the stored pixel signals therefrom, the source driver configured to write the stored pixel signals into the pixel matrix according to the polarity control signal. | 07-17-2014 |
20140232755 | DRIVING CIRCUIT AND DISPLAY DEVICE OF USING SAME - In one aspect of the invention, a driving circuit has a PCB, a transmitter disposed on the PCB for providing an input signal, first and second transmission lines disposed on the PCB and electrically coupled to the transmitter for transmitting the input signal, and a plurality of source drivers formed in a COF architecture disposed between the PCB and the display panel. The input signal is an encoded signal including first and second Gamma reference voltages control signals, and image data. The first and second Gamma reference voltages are transmitted by the PLC technology through the first and second transmission lines, respectively. The driving circuit is implemented with differential transmission of the Gamma voltages, the image data and the control signals. | 08-21-2014 |
Patent application number | Description | Published |
20090091527 | Display and Method of Transmitting Image Data Therein - A display is provided. The display includes a first timing controller, a second timing controller and drivers. The first timing controller receives and transmits a first portion of pixel values, in which the first portion of the pixel values includes the pixel values of at least two non-adjacent pixels. The second timing controller receives and transmits a second portion of the pixel values, in which the second portion of the pixel values includes the pixel values of at least two non-adjacent pixels. Each of the drivers receives respectively a part of the first portion of the pixel values transmitted by the first timing controller and a part of the second portion of the pixel values transmitted by the second timing controller. A method of transmitting image data in the display is also disclosed. | 04-09-2009 |
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 |
20110227892 | DRIVING APPARATUS FOR DRIVING A DISPLAY PANEL AND SOURCE DRIVER THEREOF - A driving apparatus for driving a display panel includes a timing controller and a plurality of source drivers. The timing controller has a first output port and a second output port. The first output port is employed to output a first clock signal and plural first data signals. The second output port is employed to output a second clock signal and plural second data signals. Each source driver includes at least two operation mode control ends for receiving an operation mode control signal having at least two bits for setting at least first to third operation modes. If the operation mode control signal sets the source driver to operate in the first operation mode, the source driver is electrically connected to both the first and second output ports, for driving the display panel according to the first data signals, the second data signals, the first clock and the second clock. | 09-22-2011 |
20120105500 | PIXEL-DRIVING CIRCUIT - A pixel driving circuit includes a first pixel, a second pixel, and a data driving circuit. Each pixel includes a main region and a sub region. The main region stores a gray level voltage and the sub region stores a gray level voltage corresponding to the gray level voltage stored in the main region when the main region and the sub region display image. In the data driving circuit, first, second, third, and fourth gray level voltages are generated by means of a first selecting circuit outputting first digital data corresponding to the first pixel and second digital data corresponding to the second pixel to the corresponding digital-to-analog converters. The first, second, third, and fourth gray level voltages are distributed to the main and sub regions of the first and second pixels by a second selecting circuit, thereby reducing the number of digital-to-analog converters. | 05-03-2012 |
20120169689 | SOURCE DRIVER UTILIZING MULTIPLEXING DEVICE AND SWITCHING DEVICE - In accordance with revealed embodiments of the present invention, a source driver is provided, which is capable of providing a variety of polarity inversion patterns of source driving signals. Additionally, due to properly utilizing a multiplexing device and a switching device, hardware architecture of the inventive source driver is no more complicated than that of the conventional source driver. As a result, the present invention provides a source driver having the greater performance than the conventional source driver without increasing hardware cost and circuitry complexity. | 07-05-2012 |
20120169708 | CONTROL CIRCUIT OF DISPLAY PANEL AND CONTROL METHOD OF THE SAME - A control circuit for driving a display panel is disclosed. The control circuit includes a timing controller, outputting a timing control signal; and a driving module, electrically coupled to the timing controller and the display panel for driving the display panel in response to the timing control signal, and the timing controller is switchable to a modifying state according to a driving condition of the driving module. A control method for driving a display panel is also disclosed. | 07-05-2012 |
20130093742 | INTEGRATED SOURCE DRIVING SYSTEM - A source driving system includes first and second source driving integrated circuits. The first driving integrated circuit includes a first source driver for receiving first display data and driving pixels in a first block of a display panel according to the first display data. The second source driving integrated circuit includes a second source driver electrically connected to the first source driver for receiving second display data and driving pixels in a second block of the display panel according to the second display data. The first and the second source drivers generate first and second display parameters according to the first and the second display data respectively. The second display parameter is transmitted from the second source driver to the first source driver. The first source driver generates a third display parameter according to the first and second parameters and transmits the third display parameter to the second source driver. | 04-18-2013 |
20130127806 | DISPLAY PANEL AND METHOD FOR DRIVING THE SAME - A display panel includes a switch control circuit, a first pre-charge switch circuit and a second pre-charge switch circuit. The switch control circuit is used for comparing the most significant bits (MSBs) of data signals to generate switch control signals for controlling the first and second pre-charge switch circuits, such that data lines are pre-charged through the first and second pre-charge switch circuits respectively. A method for driving a display panel is also provided herein. | 05-23-2013 |
20140062986 | DRIVING CIRCUIT CHIP AND DRIVING METHOD FOR DISPLAY - A driving method for a display apparatus used in a driving circuit chip, includes: receiving first and second voltages; outputting the first and second voltages to a first input-stage circuit of a first amplifier and a second input-stage circuit of a second amplifier, respectively, in a first period; outputting the first and second voltages to the second input-stage circuit and the first input-stage circuit, respectively, in a second period; receiving a third voltage outputted from the first input-stage circuit and a fourth voltage outputted from the second input-stage circuit; outputting the third and fourth voltages to the first and second output-stage circuits, respectively, in the first period; and outputting the third and fourth voltages to the second and first output-stage circuits, respectively, in the second period. A driving circuit chip is also provided. | 03-06-2014 |
20140078190 | DISPLAY-DRIVING STRUCTURE AND SIGNAL TRANSMISSION METHOD THEREOF AND MANUFACTURING METHOD THEREOF - A display-driving structure for driving a display panel is disclosed. The display-driving structure includes a first circuit board, a second circuit board, a transmission wiring, a first circuit, a second circuit, first source driver circuits and second source driver circuits. The transmission wiring is connected between the first circuit board and the second circuit board. The first circuit is disposed on the first circuit board for generating a first signal. The second circuit is disposed on the second circuit board for generating a second signal. The first source driver circuits receive the first signal from the first circuit board, and further receive the second signal via the transmission wiring and the second circuit board. The second source driver circuits receive the second signal from the second circuit board, and further receive the first signal via the transmission wiring and the first circuit board. | 03-20-2014 |