Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsByung Ki Chun, Hyeon Min Kim, Young Wook Yoo, Jun Gyu Lee, Hyun Jun Lim
Life of this patent
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Abstract
A display device includes pixels, an image converter which generates a second image by correcting grayscales of a first logo in a first image for the pixels, and a data driver which provides data signals corresponding to the second image to the pixels. The image converter detects the first logo based on value and saturation of the first image, generates first map data corresponding to the first logo, and specifies pixels corresponding to the first logo based on the first map data.
Claims19
A display device comprising:
- pixels;
- an image converter which generates a second image by correcting grayscales of a first logo in a first image for the pixels;
- and
- a data driver which provides data signals corresponding to the second image to the pixels,
- wherein the image converter detects the first logo based on value and saturation of the first image, generates first map data corresponding to the first logo, and specifies pixels corresponding to the first logo based on the first map data,
- wherein the image converter includes a first logo detector which generates first sub-map data based on the value of the first image, generates second sub-map data based on the saturation of the first image, and generates the first map data by combining the first sub-map data and the second sub-map data.
A method of driving a display device, the method comprising:
- detecting a first logo in a first image based on value and saturation of the first image;
- generating first map data corresponding to the first logo;
- detecting a second logo in the first image based on a white mark of the first image;
- generating second map data corresponding to the second logo;
- generating third map data using the first map data and the second map data;
- specifying pixels corresponding to the first logo and pixels corresponding to the second logo based on the third map data;
- and
- generating a second image by correcting grayscales of the pixels corresponding to the first logo and the pixels corresponding to the second logo in the first image,
- wherein the generating the first map data includes:
- converting the first image to a third image;
- generating first sub-map data corresponding to an area having a value equal to or greater than a threshold value among the third image;
- generating second sub-map data corresponding to an area having a saturation equal to or greater than a threshold saturation among the third image;
- and
- generating the first map data by combining the first sub-map data and the second sub-map data.
Dependencies are inferred from the claim text.