Patent ID: 7733314

Claim:
A display device comprising: a first image processor which outputs a first pretilt signal in response to a first external image signal during a first pretilt period, the first pretilt signal corresponding to a first gray scale; a second image processor which outputs a second pretilt signal in response to a second external image signal during a second pretilt period, the second pretilt signal corresponding to a second gray scale higher than the first gray scale; a gamma reference voltage generator receiving which receives a power supply voltage from an exterior and outputs a gamma reference voltage; a data driver which converts the first pretilt signal into a first voltage based on the gamma reference voltage and outputs the first voltage during the first pretilt period, and which converts the second pretilt signal into a second voltage based on the gamma reference voltage and outputting outputs the second voltage during the second pretilt period, the second voltage being identical to the first voltage; a gate driver which outputs a first gate signal during the first pretilt period and a second gate signal during the second pretilt period; and a display unit which displays images using a plurality of pixels including first pixels receiving which receive the first voltage in response to the first gate signal during the first pretilt period and second pixels which receive the second voltage in response to the second gate signal during the second pretilt period.