Patent ID: 11961448
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The display device of claim 1, wherein the display panel driver is configured to reduce the luminance of a first region of the display panel by the first adjustment value, to calculate a first on-pixel ratio of the first region based on the input image data of the current frame for the first region, to calculate a first difference value between the first adjustment value and a reference adjustment value corresponding to the first on-pixel ratio, to determine a second adjustment value by summing the first adjustment value and a product of the first difference value and a first coefficient, to reduce the luminance of a second region of the display panel different from the first region by the second adjustment value, to calculate a second on-pixel ratio of the first region and a second on-pixel ratio of the second region based on the input image data of the current frame for the first region and the second region, respectively, to calculate a second difference value between the first adjustment value and the reference adjustment value corresponding to the second on-pixel ratio, to determine a third adjustment value by summing the first adjustment value with a product of the second difference value and a second coefficient, and to reduce the luminance of a third region of the display panel different from the first region and the second region by the third adjustment value.