Patent ID: 8144173
Filing Date: 2012-03-27
Classification: G09G

Abstract:
1. An image display apparatus comprising: an image display unit comprising a light source unit provided with a plurality of light sources, each configured to be controlled respectively, and a liquid crystal panel configured to display on a display area; a luminance calculation unit configured to calculate a light source luminances of the light sources based on signal levels of divided areas into which the display area is virtually divided; a luminance distribution calculation unit configured to calculate an entire luminance distribution of the light source unit; a transform unit configured to transform a signal level of the input image into a transformed image based on the entire luminance distribution; a luminance correction unit configured to calculate, as a representative value, an average value or a sum of the light source luminances, to calculate a correction coefficient which is set smaller as the representative value is increased, to correct each of the light source luminances by the correction coefficient; and a controller unit configured to control the liquid crystal panel and the light source unit.