US 12,217,531 B2
Texture recognition device and display apparatus
Jie Zhang, Beijing (CN); Shoujin Cai, Beijing (CN); Jin Cheng, Beijing (CN); Dexi Kong, Beijing (CN); Cheng Li, Beijing (CN); and Yingzi Wang, Beijing (CN)
Assigned to BEIJING BOE SENSOR TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/784,801
Filed by BEIJING BOE SENSOR TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 22, 2021, PCT No. PCT/CN2021/101562
§ 371(c)(1), (2) Date Dec. 29, 2022,
PCT Pub. No. WO2022/266847, PCT Pub. Date Dec. 29, 2022.
Prior Publication US 2024/0185631 A1, Jun. 6, 2024
Int. Cl. G06V 40/13 (2022.01); H01L 27/146 (2006.01)
CPC G06V 40/1318 (2022.01) [H01L 27/14603 (2013.01); H01L 27/14623 (2013.01); H01L 27/14627 (2013.01); H01L 27/14678 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A texture recognition device, having a plurality of pixel units, and comprising:
a base substrate,
a driving circuit layer on the base substrate,
a first electrode layer on a side of the driving circuit layer away from the base substrate, and
a photosensitive element layer on a side of the first electrode layer away from the base substrate,
wherein at least one of the plurality of pixel units comprises a pixel driving circuit in the driving circuit layer, a first electrode in the first electrode layer, and a plurality of photosensitive elements spaced apart from each other in the photosensitive element layer,
the pixel driving circuit is electrically connected with the first electrode,
the plurality of photosensitive elements are on a side of the first electrode away from the base substrate, and are electrically connected with the pixel driving circuit through the first electrode;
the first electrode comprises at least one first hollowed-out portion between two adjacent photosensitive elements of the plurality of photosensitive elements.