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:
Jan. 25, 2022
Filed:
Oct. 16, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Xueyou Cao, Beijing, CN;
Xiaoliang Ding, Beijing, CN;
Haisheng Wang, Beijing, CN;
Wenjuan Wang, Beijing, CN;
Pengpeng Wang, Beijing, CN;
Yapeng Li, Beijing, CN;
Ping Zhang, Beijing, CN;
Likai Deng, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A fingerprint identification and detection circuit, a fingerprint identification and detection method and a display device are provided. The fingerprint identification and detection circuit includes a storage capacitor, a capacitor control circuit and a photoelectric conversion element; the photoelectric conversion element is configured to, when in a photoelectric conversion state, convert a received optical signal into a corresponding electrical signal; the capacitor control circuit is provided between the storage capacitor and the photoelectric conversion element, and is configured to perform control to store at least part of the electrical signal to the storage capacitor under control of a capacitor control signal.