US 11,972,713 B2
Systems and methods for point defect compensation
Hari P. Paudel, Milpitas, CA (US); Chaohao Wang, Sunnyvale, CA (US); Hopil Bae, Palo Alto, CA (US); Mahdi Farrokh Baroughi, Santa Clara, CA (US); Wei Chen, Palo Alto, CA (US); and Wei H. Yao, Palo Alto, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,804.
Claims priority of provisional application 63/185,172, filed on May 6, 2021.
Prior Publication US 2022/0358867 A1, Nov. 10, 2022
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2300/0439 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an electronic display comprising a plurality of display pixels configured to display an image comprising image content; and
image processing circuitry configured to:
receive image data corresponding to the image;
identify one or more angular features of the image content of the image;
select a compensation mask from a plurality of compensation masks based on the one or more angular features of the image content;
convert a gray level of the image data corresponding to a defective display pixel of the plurality of display pixels into a luminance domain to generate a target luminance that would have been emitted by the defective display pixel; and
distribute the target luminance of the defective display pixel to a nearby plurality of non-defective display pixels of the electronic display within a distance of the defective display pixel according to the selected compensation mask.