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.

Date of Patent:
Oct. 22, 2024

Filed:

Oct. 18, 2023
Applicants:

Beijing Boe Sensor Technology Co., Ltd., Beijing, CN;

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Yajie Feng, Beijing, CN;

Cheng Li, Beijing, CN;

Yue Geng, Beijing, CN;

Kuiyuan Wang, Beijing, CN;

Zefei Li, Beijing, CN;

Chaoyang Qi, Beijing, CN;

Yi Dai, Beijing, CN;

Xiaoguan Li, Beijing, CN;

Yingzi Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/13 (2022.01); H01L 23/552 (2006.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
G06V 40/1318 (2022.01); H01L 23/552 (2013.01); H01L 27/14603 (2013.01); H01L 27/14612 (2013.01); H01L 27/1462 (2013.01); H01L 27/14623 (2013.01); H01L 27/14636 (2013.01); H01L 27/14678 (2013.01);
Abstract

An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element, having one end electrically connected to the second capacitor plate; a first electrode layer electrically connected to another end of the photosensitive element. On the substrate, an orthographic projection of the second capacitor plate at least partially overlaps with that of the first electrode layer, and the first capacitor plate is located in the same layer and has the same material as the gate of the TFT.


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