Display Device and Driving Method Thereof
AssigneeSamsung Display Co., Ltd.
InventorsOk-Kwon Shin, Sun-Kyu Son, Jae-Han Lee, Hee-Jin Choi
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Abstract
A display device includes a signal controller processing an input image signal and an input control signal and outputting an image signal and a control signal. A gray voltage generator generates reference gray voltages. The control signal includes a selection signal. A data driver generates gray voltages based on the reference gray voltage, selects a gray voltage corresponding to the image signal among the generated gray voltages, and applies the selected gray voltage to a pixel as a first data voltage. The data driver applies a black data voltage corresponding to a black image to the pixel according to the selection signal.
Claims20
A display device comprising:
- a signal controller processing an input image signal and an input control signal and outputting an image signal and a control signal, wherein the control signal includes a selection signal;
- a gray voltage generator generating a plurality of reference gray voltages;
- and
- a data driver generating a plurality of gray voltages based on the reference gray voltages, selecting a gray voltage corresponding to the image signal among the generated gray voltages, and applying the selected gray voltage to a pixel as a first data voltage,
- wherein the data driver applies a black data voltage corresponding to a black image to the pixel according to the selection signal.
A method for driving a display device including a signal controller processing an input image signal and an input control signal and outputting an image signal and a control signal including a selection signal, and a gray voltage generator generating a plurality of reference gray voltages, and a data driver generating a plurality of gray voltages based on the reference gray voltages, the method comprising:
- selecting a gray voltage corresponding to the image signal among the gray voltages and generating a first data voltage;
- selecting one of the first data voltage and a common voltage according to the selection signal;
- and
- outputting a second data voltage to a pixel when selecting the first data voltage, or outputting a black data voltage corresponding to a black image to the pixel when selecting the common voltage.
Dependencies are inferred from the claim text.