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:
Feb. 02, 2021
Filed:
Jun. 19, 2020
AU Optronics Corporation, Hsin-Chu, TW;
Yi-Hsin Lin, Hsin-Chu, TW;
Hung-Wen Chou, Hsin-Chu, TW;
Yu-Jing Chen, Hsin-Chu, TW;
Chia-Ching Chen, Hsin-Chu, TW;
Tsun-Chien Cheng, Hsin-Chu, TW;
Chun-Ku Kuo, Hsin-Chu, TW;
Po-Yuan Liu, Hsin-Chu, TW;
AU OPTRONICS CORPORATION, Hsin-Chu, TW;
Abstract
A fingerprint recognition device with a wake-up function is provided, which includes a signal wiring, a sensing array at least partially surrounded by the signal wiring, a first electrode, and a control circuit. The control circuit is coupled with the signal wiring, the first electrode, and the sensing array. The control circuit detects capacitance between the signal wiring and the first electrode in a first operation mode to generate a sensing result, and determines whether an object is on or near the sensing array according to the sensing result. If the control circuit determines that the object is on or near the sensing array, the control circuit switches from the first operation mode to a second operation mode. The control circuit drives the sensing array by the signal wiring to generate multiple sensing signals in the second operation mode, and calculates a sensed image according to the multiple sensing signals.