Patent ID: 11915668
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device, comprising:
a display panel including a plurality of unit blocks disposed in a display area;
a display panel driver configured to generate a data signal based on input image data; and
a zone compensator configured to calculate load values of the input image data for the unit blocks, respectively, to extract a reference block with a largest load value among the unit blocks, and to control luminance of the unit blocks based on the reference block and the load values,
wherein the zone compensator generates corrected image data by correcting the input image data based on the reference block and the load values, and the display panel driver generates the data signal based on the corrected image data,
wherein the zone compensator generates the corrected image data by applying a gain curve to the input image data, the gain curve includes gain values corresponding to spatial locations in the display area, and as a gain value of the gain curve decreases, luminance of the corresponding spatial location in the display area decreases, and
wherein the gain curve is generated based on a first sub-luminance gain curve corresponding to a distance from a center of the reference block in a first direction and a second sub-luminance gain curve corresponding to the distance from the center of the reference block in a second direction crossing the first direction.