Display device, apparatus for driving the same and method of driving the same
AssigneeSamsung Electronics Co., Ltd.
InventorSunkwang Hong
Life of this patent
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Abstract
A display device has a display panel and a driver. The display panel displays an image signal. The driver provides the display panel with a frame data in a first sub frame using a first gamma curve that has a first gamma value, and provides the display panel with the frame data in a second sub frame using a second gamma curve that has a second gamma value, wherein the second gamma value is greater than the first gamma value. Therefore, the display device may have an improved brightness and display moving pictures in a high display quality.
Claims32
A display device, comprising:
- a display panel configured to display an image signal;
- and
- a driver configured to provide the display panel with a frame data in a first sub frame using a first gamma curve and configured to provide the display panel with the frame data in a second sub frame using a second gamma curve whose gamma value is greater than a gamma value of the first gamma curve.
An apparatus for driving a display device having a display panel for displaying an image signal, the apparatus comprising:
- a gamma storing unit configured to store a first reference gray scale data corresponding to a first gamma curve and a second reference gray scale data corresponding to a second gamma curve whose gamma value is greater than a gamma value of the first gamma curve;
- a reference gray scale voltage generation unit configured to generate a first reference gray scale voltage and a second reference gray scale voltage based on the first and second reference gray scale data, respectively;
- and
- a data driver configured to convert the frame data into first and second data voltages based on the first and second reference gray scale voltages, respectively, and configured to provide the converted first and second data voltages to the display panel.
A method of driving a display device, the method comprising:
- receiving a frame data from an external device;
- and
- displaying a first sub frame using a first gamma curve during a first interval of a frame cycle of the frame data and displaying a second sub frame using a second gamma curve whose gamma value is greater than a gamma value of the first gamma curve during a second interval of the frame cycle.
Dependencies are inferred from the claim text.