The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2020
Filed:
Mar. 29, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Chengdu Boe Optoelectronics Technology Co., Ltd., Chengdu, Sichuan Province, CN;
Yuanjie Xu, Beijing, CN;
Weiyun Huang, Beijing, CN;
Shan Gao, Beijing, CN;
Yang Wang, Beijing, CN;
Tingliang Liu, Beijing, CN;
Pengcheng Zang, Beijing, CN;
Zhonglin Cao, Beijing, CN;
Ting Li, Beijing, CN;
Yancheng Lu, Beijing, CN;
BOE TECHNOLOGY GROUP, CO., LTD., Beijing, CN;
CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chengdu, Sichuan Province, CN;
Abstract
An optical fingerprint identification device includes a cover plate, a piezoluminescent layer, an optical sensing layer and a patterned light shield layer. The piezoluminescent layer is arranged under the cover plate, and has a changed state of light emission when subjected to a pressure, to emit light of a certain wavelength. The optical sensing layer is configured to detect the light reflected by a finger. The patterned light shield layer is arranged between the optical sensing layer and the piezoluminescent layer, and is configured to block the light from directly going into the optical sensing layer.