Patent ID: 6977637

Claim:
A method of driving a liquid crystal display comprising the steps of: applying a voltage corresponding to an image data to pixel electrodes in a predetermined first region of a liquid crystal display panel when scanning the first region for one frame period, and fixing a potential of pixel electrodes in a predetermined second region of the liquid crystal display panel to first pixel electrode potential while fixing a potential of common electrode to a first common electrode potential when scanning the second region (first step); for one or more frame periods after the one frame period, applying the voltage corresponding to the image data to the pixel electrodes in the first region when scanning the first region, and holding the potential of the pixel electrodes in the second region to the first pixel electrode potential while fixing the potential of the common electrode to the first common electrode potential without scanning the second region (second step); for one frame period after the one or more frame periods, applying the voltage corresponding to the image data to the pixel electrodes in the first region when scanning the first region, and fixing the potential of the pixel electrodes in the second region to a second pixel electrode potential different from the first pixel electrode potential while fixing the potential of the common electrode to a second common electrode potential different from the first common electrode potential when scanning the second region (third step); and next one or more frame periods, applying the voltage corresponding to the image data to the pixel electrodes in the first region when scanning the first region, and holding the potential of the pixel electrodes in the second region to the second pixel electrode potential while fixing the potential of the common electrode to the second common electrode potential without scanning the second region (fourth step); wherein a difference between the first and second common electrode potentials and a difference between the first and second pixel electrode potentials coincide with each other.