Display device, control circuit included in the same, and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsJunhan Ko, Mitsuru Fujii, Seokyoung Yoon, Jong-Woong Park
Life of this patent
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Abstract
A display device includes a display panel, a control circuit, and a data driving circuit. The display panel displays an image based on data voltages, and includes a display area divided into a plurality of blocks. The control circuit receives input image data, determines a boot-up area among the blocks when the input image data is a moving image, and generates output image data by increasing low-grayscale values lower than a threshold grayscale among input grayscale values of the input image data in the boot-up area. The data driving circuit generates the data voltages based on the output image data.
Claims19
A display device, comprising:
- a display panel which displays an image based on data voltages, and includes a display area divided into a plurality of blocks;
- a control circuit which receives input image data, determines a boot-up area among the blocks when the input image data is a moving image and includes at least one of the blocks having at least one high-grayscale value higher than a reference greyscale, performs a compensation that generates output image data by increasing low-grayscale values lower than a threshold grayscale among input grayscale values of the input image data in the boot-up area, and generates the output image data equal to the input image data without the compensation when the input image data is a still image;
- and
- a data driving circuit which generates the data voltages based on the output image data.
An electronic device comprising:
- a first logic circuit which determines whether input image data is a moving image or a still image;
- a second logic circuit which determines a boot-up area among blocks of a display panel of the electronic device when the input image data is the moving image and includes at least one grayscale higher than a reference grayscale;
- and
- a third logic circuit which generates output grayscale values of output image data by compensating low-grayscale values lower than a threshold grayscale among input grayscale values of the input image data in the boot-up area based on an offset value, and generates the output image data equal to the input image data without the compensating when the input image data is the still image.
A method of driving a display device, the method comprising:
- determining whether input image data is a moving image or a still image;
- determining a boot-up area among blocks of a display panel of the display device when the input image data is the moving image and includes at least one of the blocks having at least one high-grayscale value higher than a reference greyscale;
- generating output grayscale values of output image data by compensating low-grayscale values lower than a threshold grayscale among input grayscale values of the input image data in the boot-up area based on an offset value;
- generating the output image data equal to the input image data without the compensating when the input image data is the still image;
- and
- generating data voltages based on the output image data.
Dependencies are inferred from the claim text.