Patent ID: 9030483
Filing Date: 2015-05-12
Classification: G09G

Abstract:
1. An image display device, comprising: a display panel including a plurality of pixels and displaying an image; circuitry configured to: generate, for each pixel, a converted image signal regarding red, green and blue colors and an auxiliary primary color from an original image signal regarding red, green and blue colors using a corresponding one of a plurality of gains corresponding to the pixels; determine a maximum gain as an upper limit for each of the plurality of gains, wherein the gain for each pixel is a minimum value of both a first gain determined from the original image signal of the pixel and the maximum gain, and wherein the first gain for each pixel is obtained from a maximum value of gray levels of the display panel and a maximum value of red color, green color, blue color and auxiliary primary color components of the converted image signal for the pixel; and generate a data signal from the converted image signal and supplying the data signal to the display panel, wherein the auxiliary primary color is a combination of two of the red, green and blue colors.