| 摘要 |
PROBLEM TO BE SOLVED: To provide a gamma correction circuit capable of generating maximally adjustable driving reference voltages while using the lowest number of voltage sources. SOLUTION: The adjustable biase gamma correction circuit having center- symmetry voltages is provided. Since the gamma correction circuit is provided with varistors, transistors or operational amplifiers, a plurality of (+) and (-) driving voltages which are symmetric on the basis of a center voltage can be obtained in this circuit. Thus, the gamma correction circuit generates maximally adjustable driving voltages while using the lowest number of voltage sources.
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