LIQUID CRYSTAL TELEVISION ADJUSTMENT SYSTEM, LIQUID CRYSTAL DISPLAY ADJUSTMENT SYSTEM, AND LIQUID CRYSTAL DISPLAY

摘要

PROBLEM TO BE SOLVED: To improve precision by enabling white balance to be adjusted up to the maximum dynamic range in a liquid crystal television adjustment system, a liquid crystal display adjustment system, and a liquid crystal display.;SOLUTION: A PC40 outputs a white video signal to a TV100, measures luminance in each color component of RGB from a video image displayed on the screen of the TV100 to generate chromaticity information, and changes a prescribed amount of output in one of RGB color components for determining whether the chromaticity information changes. When the chromaticity information does not change, a prescribed amount of contrast is reduced in the TV100, and the chromaticity information is acquired again for re-judgment. When the chromaticity information changes, it is determined whether the chromaticity information nearly coincides with that of white. When the chromaticity information nearly coincides with that of white, an adjustment value is stored in an EEPROM112. When the chromaticity information does not nearly coincide with that of white, the chromaticity information is acquired again for re-judgment.;COPYRIGHT: (C)2007,JPO&INPIT