Patent ID: 8884859

Claim:
A method for driving a pixel of a liquid crystal display (LCD), according to a pixel value during a frame period, the frame period being divided into a precharge field and a compensation field, wherein the LCD includes a frame memory, a overdrive compensation unit, a calculation and expand unit, and a multiplexer, the method comprising: receiving the pixel value by the frame memory; deciding a precharge pixel value to be a predetermined first pixel value or a predetermined second pixel value by the calculation and expand unit according to the pixel value stored in the frame memory and an overdrive compensation value from the overdrive compensation unit; deciding a compensation pixel value by the calculation and expand unit according to the pixel value stored in the frame memory and the overdrive compensation value from the overdrive compensation unit; storing the precharge pixel value and the compensation pixel value by the frame memory; driving the pixel according to the precharge value and the compensation pixel value, including: determining a precharge driving voltage according to the precharge pixel value; determining a compensation driving voltage according 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 the lightness of the pixel driven according to the precharge pixel value and the compensation pixel value is substantially the same with the lightness of the pixel if driven according to the pixel value; and wherein the compensation pixel value is determined further according to a second overdrive compensation value.