Patent ID: 8179349

Claim:
A pixel structure, comprising: a first gate line; a data line, for providing gray level voltages; a first sub-pixel, comprising a first switching transistor and a first liquid crystal capacitor, wherein when the first gate line turns on the first switching transistor, the data line biases the first liquid crystal capacitor to a first gray level voltage through the first switching transistor; and a second sub-pixel, comprising a second switching transistor, a second liquid crystal capacitor, a third switching transistor coupled to a second gate line, and a charge sharing capacitor coupled to a variable voltage, wherein when the first gate line turns on the second switching transistor, the data line biases the second liquid crystal capacitor to the first gray level voltage through the second switching transistor; and when the second gate line turns on the third switching transistor, the second liquid crystal capacitor and the charge sharing capacitor are charge-shared to a second gray level voltage through the third switching transistor; wherein the second gray level voltage is changed according to the variable voltage.