MATRIX TYPE DISPLAY APPARATUS AND METHOD FOR DRIVING THE SAME

摘要

A pair of gamma1A and gamma2A converter circuits (1a,2a) to a pair of gamma1C and gamma2C converter circuits (1c,2c) use first to third types of first and second gamma characteristics to gamma convert an input video signal (IS). Selectors (3 to 5) select one pair among three pairs of gamma characteristics in accordance with a transmittance to be used for display, and select one of the six gamma corrected outputs such that both a distribution area ratio of pixels driven by the video signal as gamma corrected by use of the first gamma characteristic of the selected pair of gamma characteristics and a distribution area ratio of pixels driven by the video signal as gamma corrected by use of the second gamma characteristic of the selected pair of gamma characteristics are equal to a distribution area ratio specified in advance for the selected pair of gamma characteristics.