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GAMMA VOLTAGE GENERATION APPARATUS, ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING SAME, AND METHOD FOR GENERATING GAMMA VOLTAGE
GAMMA VOLTAGE GENERATION APPARATUS, ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING SAME, AND METHOD FOR GENERATING GAMMA VOLTAGE
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机译:伽马电压产生装置,包括该伽马电压产生装置的有机发光显示装置以及产生伽马电压的方法
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摘要
Disclosed are a gamma voltage generation apparatus, an organic light emitting display device including the same, and a method for generating a gamma voltage. A gamma voltage generation apparatus for providing a gamma voltage based on a gamma characteristic of a display panel according to an embodiment of the present invention comprises: a gamma reference voltage selection unit which receives a gamma reference voltage, and selects and outputs first, second, and third gamma voltages having voltage values equal to or lower than the gamma reference voltage; an intermediate gamma voltage selection unit which receives the first to third gamma voltages, and selects and outputs a plurality of intermediate gamma voltages; and an intermediate gamma voltage calculation unit which receives a plurality of high gamma voltages corresponding to a high gray level from the intermediate gamma voltage selection unit, selects a part of the high gamma voltages and calculates a low gamma voltage corresponding to a low gray level, and outputs a selection signal corresponding to the calculated low gamma voltage to the intermediate gamma voltage selection unit.;COPYRIGHT KIPO 2016
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