Adjustable biased gamma-correction circuit with central-symmetry voltage

摘要

An adjustable biased Gamma-correction circuit with central-symmetry voltage is disclosed. The present invention provides varistors, transistors, or operation amplifiers in a Gamma-correction circuit to obtain a plurality of plus and minus symmetrical driving voltages based on a central voltage. Utilizing the present invention, a Gamma-correction circuit can generate the most adjustable driving voltages by using the minimum voltage sources.