Patent ID: 7742030

Claim:
A method for driving a liquid crystal display (LCD), the LCD being adapted to receive a pixel value and to drive a pixel of the LCD according to the pixel value during a frame period, the frame period being divided into a precharge field and a compensation field, the method comprising: deciding a precharge pixel value to be either a predetermined first pixel value or a predetermined second pixel value according to the pixel value; deciding a compensation pixel value; and driving the pixel according to the precharge value and the compensation pixel value, comprising: determining a precharge driving voltage corresponding to the precharge pixel value; determining a compensation driving voltage corresponding to the compensation pixel value; driving the pixel according to the precharge driving voltage during the precharge field; and driving the pixel according to the compensation driving voltage during the compensation field; wherein at the driving step, the lightness of the pixel driven according to the precharge pixel value and the compensation pixel value is substantially the same as the lightness of the pixel if driven according to the pixel value; wherein the precharge field comes before the compensation field when the precharge pixel value is larger than the compensation pixel value, and the compensation field comes before the precharge field when the compensation pixel value is larger than the precharge pixel value.