Patent ID: 11967262
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A display device comprising:
a display panel comprising a plurality of pixels;
a controller configured to:
receive input image data for the display panel;
determine a hue value for each of the plurality of pixels based on the input image data;
divide the display panel into a plurality of pixel blocks;
generate a stress map for the plurality of pixel blocks based on the input image data;
generate compensated image data by compensating the input image data based on the stress map;
determine a saturation value and a brightness value for each of the plurality of pixels based on the compensated image data; and
generate output image data based on the hue value, the saturation value, and the brightness value for each of the plurality of pixels; and
a data driver configured to provide data voltages to the plurality of pixels based on the output image data,
wherein the controller comprises:
a first RGB-to-HSV conversion block configured to convert the input image data into first HSV data;
a stress map generation block configured to generate the stress map representing block stress values of the plurality of pixel blocks based on the first HSV data;
a stress map interpolation block configured to calculate a stress value for each of the plurality of pixels by performing a bilinear interpolation operation on the block stress values of the stress map;
a stress compensation block configured to generate the compensated image data for each of the plurality of pixels by compensating the input image data for each of the plurality of pixels based on the stress value for each of the plurality of pixels;
a second RGB-to-HSV conversion block configured to convert the compensated image data into second HSV data; and
a HSV-to-RGB conversion block configured to:
receive a hue component of the first HSV data for each of the plurality of pixels as the hue value for each of the plurality of pixels;
receive a saturation component and a brightness component of the second HSV data for each of the plurality of pixels as the saturation value and the brightness value for each of the plurality of pixels; and
generate the output image data for each of the plurality of pixels by converting the hue value, the saturation value, and the brightness value for each of the plurality of pixels into an RGB image data format.