Patent ID: 6661400
Filing Date: 2003-12-09
Classification: G09G

Abstract:
A liquid crystal panel drive for driving a plurality of pixels in a liquid crystal panel according to an input image signal, and for improving a hysteresis of said liquid crystal panel, said liquid crystal panel drive comprising:a frame memory for storing a frame memory signal including: (1) a reference peak level corresponding to a hysteresis generation level, (2) a duration of time of the reference peak level, and (3) a duration of time of an intermediary level; revision means for revising said frame memory signal on the basis of a present level of the input image signal; and drive signal generation means for generating a drive signal for the liquid crystal panel on the basis of both the revised frame memory signal and the present level of the input image signal, wherein the liquid crystal panel is driven by the drive signal so as to be capable of producing, for each of the plurality of pixels, a multi-level display according to the drive signal.