Patent application number | Description | Published |
20080198116 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A liquid crystal display device includes a timing controller, a data driver, a gate driver and a liquid crystal panel. The timing controller receives an image data signal to output a first control signal, a second control signal and a data signal corresponding to the image data signal. The data driver outputs first and second gray scale signals having different gray scale levels in response to the first control signal and the data signal. The gate driver outputs a gate signal in response to the second control signal. The liquid crystal panel includes a plurality of pixels aligned in a matrix and displays an image in response to the first gray scale signal, the second gray scale signal and the gate signal. Each of the pixels of the liquid crystal panel includes a first sub-pixel, to which the first and second gray scale signals are alternately applied in one frame unit, and a second sub-pixel, to which the first gray scale signal is applied. | 08-21-2008 |
20080271987 | SYSTEM AND METHOD FOR PREPARING NANOPARTICLES USING NON-THERMAL PULSED PLASMA - A system for preparing nanoparticles using non-thermal pulsed plasma is provided. The system comprises a reaction chamber having two divided regions, i.e. a first region where nanoparticles are to be formed and a second region where the nanoparticles are to be received, to prevent the formation of a thin film of nanoparticles in the second region. The use of the system enables the preparation of nanoparticles with improved uniformity and high collection efficiency. In addition, collection and deposition of nanoparticles can be simultaneously performed in the second region. Therefore, the system can find applications in various fields, including devices, secondary cells and sensors. Further provided is a method for preparing nanoparticles using the system. | 11-06-2008 |
20080291611 | FLAT DISPLAY AND FLAT DISPLAY APPARATUS HAVING THE SAME - A flat display including a display main body to receive a display panel to display an image and a receiving member which is formed with receiving holes disposed at opposite lateral sides of the display main body. | 11-27-2008 |
20090162986 | Copolymers, polymer resin composition for buffer layer method of forming a pattern using the same and method of manufacturing a capacitor using the same - The invention is directed to particular polymer compositions that may be generally characterized by the formula: | 06-25-2009 |
20090253037 | METHOD OF PRODUCING NANOPARTICLES, NANOPARTICLES, AND LITHIUM BATTERY COMPRISING ELECTRODE COMPRISING THE NANOPARTICLES - A method of preparing nanoparticles includes using low-temperature plasma and a pulsed second process gas. Nanoparticles having uniform sizes and nanoparticles having a core-shell structure may be formed. A lithium battery includes an electrode that includes the nanoparticles. | 10-08-2009 |
20090277604 | DISPLAY UNIT AND VENDING MACHINE HAVING THE SAME - A display unit and a vending machine having the same. The display unit includes a display panel to display an image, a circuit board to control the display panel, a board bracket installed at a rear of the display panel and formed with a receiving section to receive the circuit board, and a plurality of inlet holes and a plurality of outlet holes formed in opposite surfaces of the board bracket to allow external air to flow through the receiving section. The air travels through the inlet and outlet holes and passes through the receiving section in one direction to cool the display panel and the circuit board. Thus, the display unit is prevented from malfunctioning and the display panel is prevented from being degraded by heat even if tempered glass is installed at a front of the display panel. | 11-12-2009 |
20090298251 | NORMAL PRESSURE AEROSOL SPRAY APPARATUS AND METHOD OF FORMING A FILM USING THE SAME - An aerosol spray apparatus and a method of forming a film using the aerosol spray apparatus are disclosed. The aerosol spray apparatus in accordance with an embodiment of the present invention includes: a carrier gas injection unit, which forms carrier gas by vaporizing liquefied gas and increases the pressure of the carrier gas; an aerosol forming unit, which forms an aerosol by mixing the carrier gas with powder; and a film forming unit, which sprays the aerosol in a normal pressure environment such that the film is formed on the surface of the board. The apparatus can perform a coating process with no restriction of the type and size of powder, simplify the process because the film can be formed in a normal temperature and pressure environment, and control a wide range of film thickness in a short time. | 12-03-2009 |
20100188441 | DRIVING APPARATUS FOR DISPLAY DEVICE - A driving apparatus for a display device includes a plurality of pixels arranged in a matrix, and each pixel includes first and second sub-pixels. The driving apparatus includes a memory for storing digital data, a controller for calling the digital data to output the digital data together with a clock signal and at least one selection signal, and a gray voltage generator formed of an integrated circuit to receive the digital data from the controller and to generate gray reference voltage sets. The gray voltage generator includes first and second registers for storing the digital data, a selector including a plurality of multiplexers for receiving the outputs of the first and second registers, and a converter including a plurality of digital-analog converters connected to the multiplexers. As described above, the gray voltage generator is provided in the form of a chip so that it is possible to reduce the area occupied on a printed circuit board (PCB) and to reduce the cost of the gray voltage generator. | 07-29-2010 |
20100259694 | LIGHT SOURCE MODULE, BACKLIGHT UNIT AND DISPLAY APPARATUS - A display apparatus having a display and a backlight unit (BLU) which provides backlight to the display are provided. The BLU includes a first light source module in which a plurality of light sources are arranged, a second light source module in which a plurality of light sources are arranged, and a light source driving unit which drives the first light source module and second light source module. The first light source module and second light source module are connected to each other by a first connector. | 10-14-2010 |
20110012936 | BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - Provided is a backlight assembly and a display apparatus having the same, the backlight assembly including: a power converter which includes a transformer and converts a level of input power; a power factor corrector which corrects a power factor of original power and outputs it to the power converter; and a light source driver which is connected to a secondary coil of the transformer and includes a first light emitting diode module, a second light emitting diode module, and a current supplying circuit which balances amperage of power supplied to the first light emitting diode module and the second light emitting diode module. | 01-20-2011 |
20110075057 | BACKLIGHT ASSEMBLY, AND DISPLAY APPARATUS AND TELEVISION COMPRISING THE SAME - A backlight assembly including: a power unit which outputs a current whose polarity is changed on a regular basis; a plurality of balancing units which is connected in parallel to the power unit; a plurality of light emitting diode (LED) modules each of which individually receives each current output by a corresponding balancing unit of the plurality of balancing units; and a driver which is connected between the plurality of balancing units and the plurality of LED modules, and forms a current route for each balancing unit included in the plurality of balancing units to balance a current supplied to two different LED modules during a single period where a polarity of a current output by the power unit is changed. | 03-31-2011 |
20110163052 | SUPPORTING DEVICE OF DISPLAY APPARATUS - A supporting device of a display apparatus to fix the display apparatus to a wall includes a first supporting unit coupled to the display apparatus, a second supporting unit fixed to the wall such that the second supporting unit is coupled to the first supporting unit, and a position adjustment unit to move the display apparatus in three axis directions. | 07-07-2011 |
20120062148 | LUMINESCENCE DRIVING APPARATUS, DISPLAY APPARATUS, AND DRIVING METHOD THEREOF - A luminescence driving apparatus, a display apparatus, and a driving method thereof are provided. The luminescence driving apparatus includes: a driving circuit which is connected to a light-emitting device and drives the light-emitting device according to a control pulse having a fluctuating amplitude; a controller which, if an internal current of the light-emitting device is less than or equal to a threshold value, selects a position from among a plurality of different positions of the driving circuit based on the amplitude of the control pulse, senses a voltage at the selected position and determines whether a short-circuit has occurred between the light-emitting device and the driving circuit using a level of the sensed voltage; and a protector which if it is determined that the short-circuit has occurred, performs a protection operation with respect to the light-emitting device. | 03-15-2012 |
20120105498 | LUMINESCENCE DRIVING APPARATUS, DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A switching-type luminescence driving apparatus, a display apparatus, and a driving method thereof are provided. The luminescence driving apparatus includes: a plurality of driving circuits which are connected to a plurality of LEDs having a common anode terminal and which drive the plurality of LEDs according to control pulse modulation; and a controller which controls voltages of a plurality of cathode terminals of the plurality of LEDs so as to independently control each voltage of the plurality of LEDs. | 05-03-2012 |
20120126925 | INDUCTOR AND TRANSFORMER - An inductor and a transformer, each of which includes a first bobbin on which a first coil is wound and a second bobbin on which a second coil is wound, are provided. The first bobbin includes a first bobbin part on which the first coil is wound and a first support part provided at one end of the first bobbin part. The second bobbin includes a second bobbin part on which the second coil is wound and a second support part provided at one end of the second bobbin part. Another end of the first bobbin part is coupled to the second support part and another end of the second bobbin part is coupled to the first support part. | 05-24-2012 |
20120162279 | DISPLAY APPARATUS WITH BACKLIGHT DRIVING CIRCUIT AND CONTROL METHOD THEREOF - A display apparatus and a control method thereof are disclosed. The display apparatus includes a signal processor which processes a video signal; a display which displays an image based on the video signal processed by the signal processor, a light source providing light for displaying the image; and a driving circuit which drives the light source on the basis of a dimming signal having an on-section and an off-section for dimming the light source. The driving circuit includes a protection circuit for performing a protection operation as a result of an abnormal electric current flowing in the light source during the off-section. The display apparatus is protected when a short circuit occurs between the light source and the driving circuit, thereby enhancing the stability and reliability of the apparatus. | 06-28-2012 |
20120288227 | OPTIC FIBER WITH CARBON NANO-STRUCTURE LAYER, FIBER OPTIC CHEMICAL SENSOR AND METHOD FOR FORMING CARBON NANO-STRUCTURE LAYER IN FIBER CORE - The invention relates to an optic fiber having a core in which carbon nano-structures are formed at a predetermined locus, a fiber optic chemical sensor using the optic fiber, and a method of forming the carbon nano-structure layer in the core of the optic fiber. The invention utilizes gas refractive index and the adsorption sensitivity of particles on the surface of the carbon nano-structure layer, and uses the carbon nano-structure layer in the core of the optic fiber as a sensor for particles of gas, liquid and the like. | 11-15-2012 |
20130033192 | BACKLIGHT UNIT AND APPARATUS AND METHOD FOR CONTROLLING LED DRIVING CIRCUIT - A backlight unit is provided. The backlight unit includes an LED; an LED driving unit which drives the LED in accordance with a switching operation of a transistor; and a control unit which adds an additional signal to an output current of the LED to obtain a combined current, compares the combined current with the reference current, and controls the switching operation of the transistor based on the results of the comparison, wherein the additional signal is a current signal whose level increases over time in each period and is then reset to a predefined value in each period in accordance with an operation cycle of the transistor. | 02-07-2013 |
20130099690 | LED DRIVING APPARATUS, METHOD FOR DRIVING LED, AND DISPLAY APPARATUS THEREOF - A display apparatus is provided. The display apparatus includes a display panel which displays an image, a LED module which provides backlight to the display panel, a LED driving unit which selectively uses current of an inductor to apply driving voltage to the LED module, a sensing unit which senses a current value of the inductor, and a switching control unit which adjusts the driving voltage according to sensing result by the sensing unit. | 04-25-2013 |
20130113380 | LED DRIVING APPARATUS, LED DRIVING METHOD AND DISPLAY APPARATUS USING THE SAME - A display apparatus is provided. The display apparatus includes a display panel configured to display an image, an LED module configured to provide backlight to the display panel, an LED driving unit configured to apply a driving voltage to the LED module using an external power, an exterior unit configured to support the LED driving unit and the LED module and include a ground terminal provided separately from the external power, and an LED driving control unit which causes an operation of the LED driving unit to be stopped based on a current flowing in from the ground terminal. | 05-09-2013 |
20130113844 | LED DRIVING APPARATUS AND METHOD AND DISPLAY APPARATUS USING THE LED DRIVING APPARATUS AND METHOD - A display apparatus is provided. The display apparatus includes a display panel which displays an image; a light-emitting diode (LED) module which provides backlight to the display panel; an LED driving unit which applies a driving voltage to the LED module; and an LED driving control unit which senses the driving voltage from the LED module and stops an operation of the LED driving unit if the sensed driving voltage is lower than a first reference voltage or higher than a second reference voltage. | 05-09-2013 |