APPARATUS FOR PROCESSING BLACK IMAGE OF LIQUID CRYSTAL DISPLAY, IN WHICH BRIGHTNESS IS OBTAINED BY WEIGHTING OF EACH SIGNAL FROM R,G,B DIGITAL DATA

摘要

PURPOSE: An apparatus for processing a black image of a liquid crystal display is provided to reduce the manufacturing cost by adding the weighting operation unit and a level grading unit to the timing control unit. CONSTITUTION: An apparatus for processing a black image of a liquid crystal display includes an input unit(122), a weighting operation unit(124), a level grading unit(126) and an output unit(128). The input unit(122) receives the R,G,B digital data signal to transmit it to the weighting operation unit(124). The weighting operation unit(124) sets the RGB digital data transmitted from the input unit(122) through weighting selector terminal as weighting value. The level grading unit(126) performs the grading of the weighting value as a color and black luminance value through the level selector terminal. And, the output unit(128) outputs the color or black digital data to the source driver unit in response to the disable signal by receiving the color and black luminance value set at the level grading unit(126).