Patent ID: 9336707
Filing Date: 2016-05-10
CPC Classification: G09G

Claim Text:
1. A display device comprising: a display unit including a plurality of pixels emitting light according to a plurality of data signals supplied through a plurality of data lines; a gamma voltage generator configured to generate a first set of reference gamma voltages; a gamma voltage unit configured to generate a plurality of gamma voltages using the first set of reference gamma voltages and a second set of reference gamma voltages; a data driver configured to generate the plurality of data signals using the generated plurality of gamma voltages; and a timing controller configured to output first and second image data to the data driver according to an image signal, wherein the gamma voltage unit generates a first gamma voltage of the plurality of gamma voltages using the first set of reference gamma voltages when the first image data having a grayscale lower than a predetermined value is input, and generates a second gamma voltage of the plurality of gamma voltages using the second set of reference gamma voltages when the second image data having a grayscale higher than the predetermined value is input, wherein a difference between successive reference gamma voltages of the first set of reference gamma voltages is smaller than a difference between successive reference gamma voltages of the second set of reference gamma voltages.