Patent ID: 11961212
Assignee: LG ELECTRONICS INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A display device comprising:
a controller configured to perform tone mapping for adjusting luminance of an input image; and
a display configured to display an adjusted image according to the tone mapping,
wherein for performing the tone mapping the controller is configured to:
generate a base mapping curve for an entire region of the input image,
divide the input image into a plurality of local regions;
extract information for each local region of the plurality of local regions; and
generate a plurality of local mapping curves each corresponding to a respective local region of the plurality of local regions based on the extracted information; and
apply the plurality of local mapping curves to the corresponding plurality of local regions, respectively,
wherein each local mapping curve is generated by adjusting a contrast curve for a corresponding local region based on the base mapping curve, wherein the contrast curve reflects at least one of average picture level (APL) information, sharpness information, location information, or display curvature information of the corresponding local region, and
wherein based on the display being curved at a location of the corresponding local region, the controller is configured to:
enhance a brightness of the corresponding local region based on the corresponding local region being located at a center of the entire region, and
enhance a contrast of the corresponding local region based on the corresponding local region being located at a side of the entire region.