| 摘要 |
PROBLEM TO BE SOLVED: To make simply executableγ-correction in response to an optional operation mode, by selecting and switching the reference voltage corresponding to the level of the input video signal from reference voltages, and carrying out a specifiedγ-correction to the input image signal for display. SOLUTION: Digitized image signals aligned temporally in series for picture elements are taken by registers of a register group A 23 as signals for picture elements and shifted to a register group B 24 via the control of a shift register 22. The output signals of the registers of the register group B 24 are converted into analog signals of sizes corresponding to the luminance of individual picture elements. The D/A-converted analog signals are replaced with the correspondingγ-corrected reference voltages by a selector group 26, and the reference voltages are source-applied to the liquid crystal elements of the picture elements of the display screen of an LCD panel 1. When the gate voltage of the liquid crystal elements is applied from a gate driver 3, the liquid crystal elements are displayed at the brightness corresponding to the voltages applied via the selector group 26.
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