GAMMA VOLTAGE GENERATOR AND DAC HAVING GAMMA VOLTAGE GENERATOR

摘要

The present invention discloses: a gamma voltage generator that generates gamma voltages independently applied to RGM image signals, and a DAC that outputs an optimal gamma voltage using the gamma voltages generated from the gamma voltage generator. The gamma voltage generator includes an RGB-common gamma voltage generating unit in common, and further comprises at least two generating units among an RG gamma voltage generating unit, an R gamma voltage generating unit, a G gamma voltage generating unit and a B gamma voltage generating unit. The DAC includes the gamma voltage generator, a control circuit and a switching block.