Color correction circuit and image display device equipped with the same

摘要

Aspects of the invention provide a color correction circuit that can reduce a memory capacity needed to create a look-up table while suppressing deterioration in accuracy of color correction. A three-dimensional look-up table can store, as the correction values, correction values corresponding to (2^mx2ⁿx2^o) combinations specified by gradation steps represented by higher-order m bits (m is an integer equal to 1 or greater) of the luminance signal, gradation steps represented by higher-order n bits (n is an integer greater than m) of the first color difference signal, and gradation steps represented by higher-order o bits (o is an integer grater than m) of the second color difference signal, among (2^jx2^kx2^l) combinations specified by gradation steps of the j-bit (j is an integer equal to 2 or greater) luminance signal, gradation steps of the k-bit (k is an integer equal to 2 or greater) first color difference signal, and gradation steps of the l-bit (l is an integer equal to 2 or greater) second color difference signal.