VIDEO DISPLAY DRIVER WITH GAMMA CONTROL

摘要

PROBLEM TO BE SOLVED: To provide a voltage generator circuit for supplying a plurality of voltages for use in gamma compensation of a video signal.

SOLUTION: Reference voltages are input into an input electrode inputting first and second voltages. A voltage between the above reference voltages is divided by an input voltage dividing circuit consisting of a resistance potential divider circuit. The first voltage is a maximum input voltage, while the second voltage is a minimum input voltage. By an output voltage selection circuit, division voltages are selected according to a plurality of control signals to be output.

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