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

Claim 8:
9. A display device comprising:
a display configured to have an adjustable curvature;
a user input interface; and
a controller configured to control the curvature of the display based on a curvature change request received from a user via the user input interface,
wherein the display is configured to display an input image adjusted according to tone mapping performed by the controller for adjusting luminance of the input image; and
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 the controller is configured to enhance a brightness and contrast of the corresponding local region based on a degree of curvature of the display at the corresponding local region.