Liquid crystal display (lcd) apparatus suppressing fluctuation of ramp voltage thereby reducing deterioration of image quality

Abstract

A liquid crystal display apparatus includes: a ramp signal generation circuit configured to output shifted plurality of ramp signals; a signal processing circuit configured to add a correction value corresponding to a shift amount of an assigned ramp signal to each of a plurality of picture signals for the number of columns of the plurality of pixels; a horizontal shift register configured to sequentially capture the plurality of picture signals; a latch circuit configured to simultaneously output the plurality of picture signals; a gradation counter; a plurality of comparators configured to output a matching signal when each of the plurality of picture signals matches a count value of the gradation counter; and a switch circuit configured to output, to a pixel in a column corresponding to a comparator from which the matching signal is output, one of voltages of the plurality of ramp signals corresponding to the pixel.