Color correction circuit, driving device, and display device

摘要

When image data of R, G, and B is converted into linear data by a pre-gamma circuit, the number of bits of the image data is increased to improve the resolution thereof and then the image data is processed by a matrix operator. A result obtained by matrix operation is subjected to data conversion by a post-gamma circuit and stored in an image RAM. A dither circuit is provided between the post-gamma circuit and the image RAM and gradation unevenness or color unevenness is eliminated by area gradation processing using the dither circuit. A color variation of each display device is stored in a PROM as a fine adjustment coefficient for the matrix operator to realize a display device having no color variation. A display device is realized in which the plurality of color correction modes can be set by simple switching.