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

Claim 4:
5. A display device of claim 1, comprising:
a display panel comprising a plurality of pixels;
a controller configured to:
receive input image data for the display panel;
divide the display panel into a plurality of first pixel blocks, each of the plurality of first pixel blocks having a first size;
divide the display panel into a plurality of second pixel blocks, each of the plurality of second pixel blocks having a second size different from the first size;
generate, based on the input image data, a first stress map for the plurality of first pixel blocks and a second stress map for the plurality of second pixel blocks;
calculate a united stress value for each of the plurality of pixels based on the first stress map and the second stress map; and
generate output image data by compensating the input image data for each of the plurality of pixels based on the united stress 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 is configured to calculate the output image data for each of the plurality of pixels by adding a stress compensation value to the input image data for each of the plurality of pixels; and
the stress compensation value for each of the plurality of pixels increases as the united stress value for each of the plurality of pixels calculated based on the first and second stress maps increases, and decreases as a gray level of the input image data for each of the plurality of pixels increases.