Patent ID: 6388648
Filing Date: 2002-05-14
Classification: H04N

Abstract:
A display apparatus that receives color input information and provides a spectral output having predetermined primary color coordinates, a predetermined luminance, and a predetermined color balance ratio, comprising:a display device having a transfer function and providing the spectral output having intrinsic primary color coordinates; a color processor receiving the intrinsic primary color coordinates and the predetermined primary color coordinates and calculating a set of matrix coefficients relating the intrinsic and predetermined color coordinates; a color space converter receiving the matrix coefficients and the color input information and generating primary color-corrected input information; a gain controller that receives the primary color-corrected input information and provides gain-adjusted amounts of the primary color-corrected input information to establish the predetermined color balance ratio and the predetermined luminance; and a display device transfer function converter receiving the primary color-corrected input information and providing display device driving signals in amounts that compensate for the transfer function while maintaining in the spectral output the predetermined primary color coordinates and the predetermined color balance ratio.