| Patent application number | Description | Published |
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| 20090021507 | DRIVING DEVICE, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING THE DISPLAY APPARATUS - A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged. | 01-22-2009 |
| 20090167984 | BACKLIGHT UNIT, DISPLAY DEVICE HAVING THE SAME, AND METHOD THEREOF - A backlight unit, and a display device having the backlight unit, includes a light source, the light source formed to directly illuminate a display panel, and an optical plate arranged over the light source, wherein the optical plate includes a first surface and a second surface that faces the first surface, and the first surface is different in height from the second surface. | 07-02-2009 |
| 20100033415 | LIQUID CRYSTAL DISPLAY AND METHOD OF OPERATING THE SAME - A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation. | 02-11-2010 |
| 20100085348 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A display device and a method of driving the same are provided. The display device includes a display panel including a plurality of pixels defined in an area where a plurality of gate lines and data lines cross one another, a clock generator generating a gate clock signal using a clock generation control signal provided from a timing controller and a gate-on voltage, and a gate driver providing a gate signal to the gate lines in response to the gate clock signal. The gate signal includes a pre-charge period having a first gate-on level and a main-charge period having a second gate-on level that is higher than the first gate-on level. | 04-08-2010 |
| Patent application number | Description | Published |
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| 20080273133 | DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - A display panel includes: a first substrate including a gate line and a data line crossing the gate line, a pixel portion formed in a display region and electrically connected to the gate and the data line and a gate driving part formed on a first peripheral region and electrically connected to the gate line; a second substrate having a light blocking layer formed on an area of the second substrate corresponding to the first peripheral region; and a seal line formed between the first substrate and the second substrate to confine a liquid crystal layer therebetween, the seal line being formed in an area outside an outer peripheral edge of the display region, the area outside the outer peripheral edge of the display region being closer to an outer peripheral edge of the light blocking layer than to the outer peripheral edge of the display region. | 11-06-2008 |
| 20090009458 | THIN FILM TRANSISTOR ARRAY PANEL AND DISPLAY APPRATUS HAVING THE SAME - A thin film transistor (TFT) array panel and a display device having the same are provided. The TFT array panel includes a substrate, an n−1th and an nth gate line formed on the substrate, a data line intersected with the n−1th gate line, a first source electrode overlapped with at least one portion of the n−1th gate line and connected to the data line, a first and a second drain electrode overlapped with at least one portion of the n−1th gate line and facing the first source electrode, a first sub pixel electrode electrically connected to the first drain electrode, a second sub pixel electrode electrically connected to the second drain electrode, a second source electrode overlapped with at least one portion of the nth gate line and electrically connected to the second sub pixel electrode, a third drain electrode overlapped with at least one portion of the nth gate line and facing the second source electrode, a third source electrode overlapped with at least one portion of the nth gate line, a fourth drain electrode overlapped with at least one portion of the nth gate line and facing the third source electrode, a third sub pixel electrode electrically connected to the fourth drain electrode; and a fourth sub pixel electrode capacitively coupled with the third sub pixel electrode. | 01-08-2009 |
| 20090115925 | DISPLAY SUBSTRATE AND METHOD FOR REPAIRING A DEFECTIVE PIXEL OF THE DISPLAY SUBSTRATE - A display substrate includes a pixel electrode including a main electrode and a sub-electrode disposed apart from the main electrode and including an opening part. The display substrate includes a first switching device and a second switching device. The first switching device is connected to the main electrode. An extension electrode extends from the second switching device and overlaps the opening part. The extension electrode is connected to the sub-electrode via a contact part. According to the present invention, after a defective pixel is repaired, the repaired pixel operates normally. | 05-07-2009 |
