Patent ID: 11972721
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A display device comprising:
pixels including light emitting elements;
a memory configured to store degradation information including degradation degrees of the light emitting elements;
a degradation compensator configured to receive the degradation information, and generate output grayscales by changing each of input grayscales of the pixels in proportion to each of the degradation degrees; and
a temperature sensor configured to provide temperature information,
wherein, in operation, when a degradation degree having a variation greater than a threshold value among variations of the degradation degrees is detected, the degradation compensator applies a gain value to at least one of the output grayscales,
wherein the degradation compensator further includes a degradation information generator configured to update the degradation information by calculating current degradation amounts, based on the temperature information and the input grayscales and accumulating the current degradation amounts in the degradation information, and
wherein the degradation compensator further includes a degradation variation detector configured to calculate the variations by using differences between degradation degrees of current degradation information and degradation degrees of past degradation information, and provide position information of a pixel corresponding to the variation greater than the threshold value among the variations.