DISPLAY DEVICE AND ITS GAMMA CORRECTION METHOD

摘要

PURPOSE: To enhance color reproducibility on a display screen by applying individual gamma correction to each RGB without increasing a scale of a circuit. CONSTITUTION: This is a display device which performs display by time-sharing RGB display data for each RGB and writing in each pixel of RGB. The display device is equipped with a DA converter 150-1 which selects one among a plurality of gamma correction voltages in accordance with the time-shared RGB display data to output it, a gamma correction voltage switching circuit 160 which switches a gamma correction voltage for each RGB by setting a first and second reference voltages differently for each RGB, and a switching circuit 180 which supplies the output of the DA converter 150-1 selectively to each pixel of RGB. Thus, the device is designed to perform different gamma correction for each RGB.