Patent ID: 7839371

Claim:
A liquid crystal display device comprising: a plurality of pixels arranged substantially in a matrix pattern; wherein each of the plurality of pixel comprises: a first thin film transistor including a source, a drain, and a gate, in which one of the source and the drain is connected to a source line, and the gate is connected to a first gate signal line, a second thin film transistor including a source, a drain, and a gate, in which one of the source and the drain of the second thin film transistor is connected to a pixel electrode, the other one of the source and the drain of the second thin film transistor is connected to one of the source and the drain of the first thin film transistor, and the gate of the second thin film transistor is connected to a second gate signal line; a storage capacitor line; a first capacitor connected between the first thin film transistor and the second thin film transistor and connected to the storage capacitor line; a second capacitor connected between one of the source and the drain of the second thin film transistor and the pixel electrode and connected to the storage capacitor line; and a third capacitor including the pixel electrode, a common electrode, and a liquid crystal layer disposed between the pixel electrode and the common electrode, wherein an overdrive voltage satisfying an equation Vover = C ⁢ ⁢ 1 C ⁢ ⁢ 2 + C ⁢ ⁢ lc · Vsig is added to a display signal voltage and a resultant voltage is applied to the source line, and wherein C 1 , C 2 , Clc, Vover and Vsig represent the first capacitor, the second capacitor, the third capacitor, the overdrive voltage, and the display signal voltage, respectively.