Method and apparatus of driving liquid crystal display device
View Patent ↗A method and apparatus of driving a liquid crystal display device is disclosed in the present invention. The liquid crystal display device includes a plurality of data lines, a plurality of gate lines crossing the data lines, a plurality of first liquid crystal cells on a first side of the data lines, a plurality of second liquid crystal cells on a second side of the data lines, a first switching part in each of the first liquid crystal cells and controlled by the i th gate line and the (i+2) th gate line (wherein i is a natural number), and a second switching part in each of the second liquid crystal cells and controlled by the i th gate line.
1. A driving apparatus of a liquid crystal display device, comprising:
a plurality of data lines;
a plurality of gate lines crossing the data lines;
a plurality of first liquid crystal cells on a first side of the data lines;
a plurality of second liquid crystal cells on a second side of the data lines;
a first switching part in each of the first liquid crystal cells and controlled by the i th gate line and the (i+2) th gate line (wherein i is a natural number); and
a second switching part in each of the second liquid crystal cells and controlled by the i th gate line,
a data driver applying a video signal to the data lines; and
a gate driver sequentially applying first and second gate signals to each of the gate lines, wherein a pulse width of the first gate signal is different from that of the second gate signal, the second gate signal applied to the i th gate line overlapping the first gate signal applied to the (i+2) th gate line.
2. The driving apparatus according to claim 1 , wherein the second gate signal has a width wider than the first gate signal.
3. The driving apparatus according to claim 1 , wherein the first switching part applies the first video signal to the first liquid crystal cell for a first period, and the second switching part applies the second video signal to the second liquid crystal cell for a second period.
4. The driving apparatus according to claim 1 , wherein the first switching part comprises:
a first TFT controlled by a second gate signal from i th gate line to apply a first gate signal applied to i+2 th gate line;
a second TFT controlled by the first gate signal from the first TFT to apply the first video signal to the first liquid crystal cell,
wherein the second switching part comprises:
a third TFT controlled by the second gate signal to apply the second video signal to the second liquid crystal cell.
5. The driving apparatus according to claim 1 , wherein the first switching part and the second switching part alternately arranged with respect to the data lines.
6. A method of driving a liquid crystal display device, wherein the liquid crystal display device comprises:
a plurality of data lines;
a plurality of gate lines crossing the data lines;
a plurality of first liquid crystal cells on a first side of the data lines;
a plurality of second liquid crystal cells on a second side of the data lines;
a first switching part in each of the first liquid crystal cells and controlled by the i th gate line and the (i+2) th gate line (wherein i is a natural number); and
a second switching part in each of the second liquid crystal cells and controlled by the i th gate line,
the method comprising:
applying a first part of the second gate signal to the i th gate line and the first gate signal to the (i+2) th gate line in order to apply a first video signal to the first liquid crystal cell through the first switching part located in the i th horizontal line; and
applying second part of the second gate signal to the i th gate line in order to apply a second video signal to a second liquid crystal cell through the second switching part located in the i th horizontal line and adjacent to the first liquid crystal cell for sharing the same data line,
wherein the first and second gate signals are sequentially applied to each of the gate lines, wherein a pulse width of the first gate signal is different from that of the second gate signal.
7. The method according to claim 6 , wherein the first switching part comprises:
a first TFT controlled by a second gate signal from i th gate line to apply a first gate signal applied to i+2 th gate line;
a second TFT controlled by the first gate signal from the first TFT to apply the first video signal to the first liquid crystal cell,
wherein the second switching part comprises:
a third TFT controlled by the second gate signal to apply the second video signal to the second liquid crystal cell.
8. The method according to claim 6 , wherein the first switching part and the second switching part alternately arranged with respect to the data lines.