BACKLIGHT APPARATUS, BACKLIGHT CONTROL METHOD, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

A backlight apparatus and backlight control method which enable to correct light-emission luminance or chromaticity precisely and inexpensively, and a liquid crystal display device. A light source control part for controlling a backlight sets one area (SA-a) out of four areas (SA-a to SA-d) to be a correction area. The light source control part successively carries out light emission of a block (SA-a(1)) which is one block of the correction area (SA-a) and light emission of blocks (SA-b(n) to SA-d(n)) which are blocks within the three areas (SA-b to SA-d) other than the correction area (SA-a) and whose positions in each area correspond to the position of a block (SA-a(n)), aimed at all the blocks (SA-a(1) to (16)) of the correction area (SA-a). Then, the light source control part similarly repeats this aimed at the other three areas (SA-b to SA-d) as correction areas. This invention can be applied to a backlight of the liquid crystal display device, for example.