US 12,307,951 B2
Display panel, display device, and optical compensation method
Nana Xiong, Shanghai (CN); and Jujian Fu, Shanghai (CN)
Assigned to Shanghai Tianma Micro-electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-electronics Co., Ltd., Shanghai (CN)
Filed on Feb. 2, 2024, as Appl. No. 18/431,156.
Claims priority of application No. 202310904090.6 (CN), filed on Jul. 21, 2023.
Prior Publication US 2025/0029544 A1, Jan. 23, 2025
Int. Cl. G09G 3/32 (2016.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01); G09G 3/3233 (2016.01); H10K 59/121 (2023.01); H10K 59/131 (2023.01)
CPC G09G 3/32 (2013.01) [G06F 3/0412 (2013.01); G06F 3/042 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0809 (2013.01); G09G 2300/0819 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0686 (2013.01); G09G 2360/14 (2013.01); G09G 2360/142 (2013.01); G09G 2360/148 (2013.01); H10K 59/121 (2023.02); H10K 59/131 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a display area, the display area including a first display area and a second display area, the second display area at least partially surrounding the first display area;
a light-emitting element, the light-emitting element including a plurality of first light-emitting elements located in the first display area and a plurality of second light-emitting elements located in the second display area;
a pixel circuit, the pixel circuit including a first pixel circuit and a second pixel circuit, the first pixel circuit electrically connected to at least one of the plurality of first light-emitting elements, the second pixel circuit electrically connected to at least one of the plurality of second light-emitting elements, and a number of the first light-emitting element connected to the first pixel circuit being greater than a number of the second light-emitting element connected to the second pixel circuit;
an optical detection unit, the optical detection unit including a first optical detection unit in the first display area, the first optical detection unit used for detecting brightness of at least one of the plurality of first light-emitting elements in the first display area; and
a third display area, wherein
the first display area at least partially surrounds the third display area, the light-emitting element further includes a plurality of third light-emitting elements located in the third display area, the pixel circuit includes a third pixel circuit connected to one of the plurality of third light-emitting elements, and the third pixel circuit and the first pixel circuit are both located in the first display area;
the optical detection unit further includes a second optical detection unit located in the third display area, and the second optical detection unit is used to detect brightness of at least one of the plurality of third light-emitting elements in the third display area; and
the first optical detection unit includes a third photo-sensing element, the second optical detection unit includes a plurality of fourth photo-sensing elements, the third photo-sensing element does not overlap with the plurality of first light-emitting elements along a first direction, the third photo-sensing element is adjacent to one of the plurality of first light-emitting elements along a second direction, at least one of the plurality of fourth photo-sensing elements overlaps one of the plurality of third light-emitting elements along the first direction, the first direction is perpendicular to a plane where the display panel is located, and the second direction is parallel to the plane where the display panel is located.