Patent ID: 11127370

Abstract:
An image display device 1 includes an image data conversion unit 10 that performs conversion processing of converting input image data D1 into driving image data D2 for each pixel, and a display unit 20 that displays a plurality of subframes based on the driving image data D2, in one frame period. In the conversion processing in the image data conversion unit 10, for each pixel, the hue and the saturation of the input image data D1 and the hue and the saturation of the driving image data D2 in an HSV color space are held to be respectively equal to each other. The image data conversion unit 10 computes a coefficient Ks used in the conversion processing, and performs the conversion processing using the coefficient Ks. The coefficient Ks varies depending on a brightness V and has a value causing a brightness after the conversion processing to increase as the brightness V becomes greater if the saturations S are equal to each other. The difference between a minimum value and a maximum value of the coefficient Ks is set to decrease as the brightness V becomes smaller. Thus, an occurrence of noise at a low-luminance portion of a display image is suppressed.