GAMMA VOLTAGE SUPPLY DEVICE AND DISPLAY DEVICE USING THE SAME

摘要

A display device includes a display unit, a gamma voltage generator, a gamma voltage unit, a data driver, and a timing controller. The display unit includes pixels emitting light according to data signals supplied through data lines. The gamma voltage generator is configured to generate a first set of reference gamma voltages, and to supply the first set of reference gamma voltages to a gamma voltage unit. The gamma voltage unit is configured to generate gamma voltages using the first set of reference gamma voltages and a second set of reference gamma voltages, and to supply the generated gamma voltages to a data driver. The data driver is configured to generate the data signals using the generated gamma voltages, and to supply the generated data signal to the data lines. The timing controller is configured to control the data driver according to an image signal.

主权项

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 control the data driver according to an image signal, 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.