Patent ID: 7982703
Filing Date: 2011-07-19
Classification: G09G

Abstract:
1. An apparatus for driving a liquid crystal display, comprising: an input line for receiving source data; a bit converter for reducing the number of bits of the received source data to generate reduced-bit source data; and a lookup table that stores a plurality of stored preset modulated data each having a same number of bits as the source data received by the input line; a modulator for comparing the reduced-bit source data of a current frame with reduced bit source data of a previous frame to modulate the source data by retrieving one of the stored preset modulated data selected from the lookup table in accordance with a result of the comparison, wherein a bit number of the reduced-bit source data of the previous frame is the same as that of the current frame, and a bit number of the stored preset modulated data is more than that of the reduced-bit source data of each of the previous frame and the current frame, and wherein the modulator replaces all of the bits of the source data with the selected stored preset modulated data.