Patent ID: 7679684

Claim:
A white balance adjusting device used for a display capable of displaying images respectively on a plurality of regions on a screen, for adjusting white balances of images displayed by first, second and third primary signals corresponding respectively to different colors, comprising: a storage that stores a plurality of first correction data signals for gamma correction of the first primary signal, a plurality of second correction data signals for the gamma correction of the second primary signal and a plurality of third correction data signals for the gamma correction of the third primary signal; a first selector that selects any of the plurality of first correction data signals, any of the plurality of second correction data signals and any of the plurality of third correction data signals stored in said storage; a corrector that carries out the gamma correction of the input first, second and third primary signals using the first, second and third correction data signals selected by said first selector; and an adjustment instruction device that gives an instruction to adjust the white balance, wherein said first selector selects a plurality of different combinations of the first, second and third correction data signals corresponding respectively to the plurality of regions on the screen of said display when said adjustment instruction device gives the instruction to adjust the white balance, and said corrector corrects the input first, second and third primary signals using the plurality of different combinations of first, second and third correction data signals selected by said first selector to display the images having different white balances on said plurality of regions, respectively.