US 12,265,231 B2
Optical identification module and display panel
Zefei Li, Beijing (CN); Yue Geng, Beijing (CN); Cheng Li, Beijing (CN); Zhonghuan Li, Beijing (CN); Chaoyang Qi, Beijing (CN); Kuiyuan Wang, Beijing (CN); Yi Dai, Beijing (CN); Yajie Feng, Beijing (CN); and Xiaoguan Li, Beijing (CN)
Assigned to BEIJING BOE SENSOR TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Jun. 23, 2021, as Appl. No. 17/355,519.
Claims priority of application No. 202011320213.4 (CN), filed on Nov. 23, 2020.
Prior Publication US 2022/0163812 A1, May 26, 2022
Int. Cl. G06V 40/13 (2022.01); G02B 3/00 (2006.01); G02B 5/20 (2006.01); G02B 27/30 (2006.01)
CPC G02B 27/30 (2013.01) [G02B 3/0006 (2013.01); G02B 5/208 (2013.01); G06V 40/1318 (2022.01)] 12 Claims
OG exemplary drawing
 
1. An optical identification module, comprising a substrate, an identification structure and a collimation optical path structure, wherein the identification structure is arranged on the substrate, the collimation optical path structure is arranged on a light entering side of the identification structure, the optical identification module further comprises a non-visible light filtering structure, and the non-visible light filtering structure is arranged in the collimation optical path structure and is configured to filter non-visible light irradiated to the identification structure,
wherein the collimation optical path structure comprises a collimating layer and a micro-lens layer, the collimating layer and the micro-lens layer being stacked and the collimating layer being closer to the identification structure than the micro-lens layer;
the collimating layer comprises a base substrate and a plurality of through holes formed in the substrate, the plurality of through holes being uniformly distributed;
the non-visible light filtering structure is arranged on a side, proximal to the identification structure, of the collimating layer, and extends into the through holes.