| 摘要 |
PROBLEM TO BE SOLVED: To correctly compensate color temperature of a display screen regardless of the average luminance level of video input signals. SOLUTION: An LUT 21 for coating generates multilevel video signals F by combination of subfields. An APL detection part 22 detects the average luminance level C of the video input signals M, and a luminance power control part 23 outputs luminance power control signals D. The discharge maintaining number-of-pulse regulation LUT 24 generates the discharge maintaining number of pulse E. Respective SF status detection part 25 detect the subfields G at the time of light emission of the display pixels from the multilevel video signals F, and a determining part 26 outputs determination signals H, when a subfield with a maximum weighting among the subfields G is a threshold or greater. A specific color compensation maintaining number-of-pulse regulation LUT 27 outputs a specific color compensation maintaining number of pulse J, according to a discharge maintaining number of pulse E, and a signal level converting magnification LUT 28 outputs a signal level converting magnification L. A multiplier 29 generates multilevel video signals N by multiplying the multilevel video signals F by the magnification L. COPYRIGHT: (C)2005,JPO&NCIPI
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