Liquid crystal display and method of driving the same
View Patent ↗A LCD and a method of driving the LCD are provided. The LCD includes first and second gate lines extending in a first direction, a data line insulated from the first gate line and crossing the first gate line, a pixel electrode including first and second sub-pixel electrodes, the pixel electrode being disposed in a pixel having a long side in the first direction, a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode, a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode, and a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode.
1. A liquid crystal display (LCD), comprising:
a first gate line and a second gate line extending in a first direction;
a data line insulated from the first gate line and crossing the first gate line;
a pixel electrode comprising a first sub-pixel electrode and a second sub-pixel electrode, the pixel electrode being disposed in a pixel having a long side in the first direction;
a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode;
a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode;
a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode; and
a third gate line disposed parallel to and between the first gate line and the second gate line.
2. The LCD of claim 1 , wherein gate-on signals are applied sequentially and overlappedly to the first gate line, the third gate line, and the second gate line.
3. The LCD of claim 1 , further comprising a storage line disposed parallel to the first gate line and the second gate line,
wherein the charge-sharing capacitor comprises a drain electrode of the third TFT and the storage line.
4. A liquid crystal display (LCD), comprising:
a liquid crystal panel assembly comprising:
a first gate line and a second gate line extending in a first direction,
a data line insulated from the first gate line and crossing the first gate line,
a pixel electrode comprising a first sub-pixel electrode and a second sub-pixel electrode, the pixel electrode being disposed in a pixel having a long side in the first direction,
a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode,
a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode,
a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode, and
a third gate line disposed parallel to and between the first gate line and the second gate line;
a signal controller to supply a first scan start signal and a second scan start signal that have a phase difference; and
a gate driver enabled by the first scan start signal and the second scan start signal to sequentially output a first gate-on signal and a second gate-on signal to the liquid crystal panel assembly.
5. The LCD of claim 4 , further comprising a storage line disposed parallel to the first gate line and the second gate line,
wherein the charge-sharing capacitor comprises a first charge-sharing capacitor comprising a drain electrode of the third TFT and the storage line, and a second charge-sharing capacitor comprising the drain electrode of the third TFT and the first sub-pixel electrode.
6. The LCD of claim 4 , wherein 1 H is a time during which the first gate-on signal and the second gate-on signal are applied to the first gate line and the second gate line, respectively, and
wherein the first scan start signal and the second scan start signal have a phase difference of 2 H.
7. The LCD of claim 4 , wherein 1 H is a time during which the first gate-on signal and the second gate-on signal are applied to the first gate line and the second gate line, respectively, and
wherein the first scan start signal and the second scan start signal have a phase difference of 2.5 H.
8. The LCD of claim 4 , wherein the liquid crystal panel assembly is divided into a first block and a second block,
wherein the first gate-on signal is sequentially applied to gate lines in the first block, and
wherein the second gate-on signal is sequentially applied to gate lines in the second block.
9. The LCD of claim 8 , wherein 1 H is a time during which the first gate-on signal and the second gate-on signal are applied to the first gate line and the second gate line, respectively, and
wherein the first scan start signal and the second scan start signal have a phase difference of 0.5 H.