Data voltage compensation circuit and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorHyun-Suk KANG
Life of this patent
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Abstract
A data voltage compensation circuit includes a compensation information provider, a gamma register, and a compensation data voltage provider. The compensation information provider generates a test data voltage based on a test power supply voltage and a test reference voltage, and provides compensation information corresponding to the test data voltage. The gamma register provides a gamma value corresponding to display data. The compensation data voltage provider provides a compensation data voltage based on the gamma value, the compensation information, and a reference voltage. Changes in the reference voltage change a power supply voltage of a display panel.
Claims20
A data voltage compensation circuit, comprising:
- a compensation information provider to generate a test data voltage based on a test power supply voltage and a test reference voltage, and to provide compensation information corresponding to the test data voltage;
- a gamma register to provide a gamma value corresponding to display data;
- and
- a compensation data voltage provider to provide a compensation data voltage based on the gamma value, the compensation information, and a reference voltage, wherein changes in the reference voltage are to change a power supply voltage of a display panel.
A display device, comprising:
- a compensation information provider to generate a test data voltage based on a test power supply voltage and a test reference voltage, and to provide compensation information corresponding to the test data voltage;
- a gamma register to provide a gamma value corresponding to display data;
- a compensation data voltage provider to provide a compensation data voltage based on the gamma value, the compensation information, and a reference voltage, wherein the reference voltage is changed by a power supply voltage;
- and
- a panel to display an image corresponding to the display data based on the compensation data voltage.
Dependencies are inferred from the claim text.