Patent ID: 7345692
Filing Date: 2008-03-18
Classification: G09G,H04N

Abstract:
1. An image display system, comprising: viewing environment detection means for detecting a viewing environment in a display area and generating viewing environment information including a luminance value and color information; brightness correction means for correcting brightness information included in the viewing environment information from the viewing environment detection means to conform with brightness of an ideal environment, based on the viewing environment information, by replacing the luminance value of the viewing environment information with a luminance value of an input RGB signal from an external device; color difference calculation means for calculating color difference between the color information included in the viewing environment information from the viewing environment detection means, in which the brightness information has been corrected, and color information of the image in the ideal environment; image correction means for correcting image display information based on the calculated color difference; and display means for displaying an image based on the image display information, wherein the viewing environment detection means measures tristimulus values of an image in the display area or captures an image in the display area; and the image display information for the ideal environment and the viewing environment information is expressed in Lab format or Yxy format, and the brightness correction means replaces the L value or Y value of the viewing environment information with the L value or Y value of the image display information for the ideal environment.