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:
Jun. 21, 2022
Filed:
Nov. 04, 2021
AU Optronics Corporation, Hsin-Chu, TW;
Li-Wei Shih, Hsin-Chu, TW;
Po-Chun Lai, Hsin-Chu, TW;
AU OPTRONICS CORPORATION, Hsin-Chu, TW;
Abstract
A light sensing pixel including a first transistor, a compensation circuit, an output circuit, a capacitor and a light sensing circuit is provided. The control terminal of the first transistor is coupled with a first node. The first terminal of the first transistor is configured to receive a first operation voltage or a second operation voltage lower than the first operation voltage. The compensation circuit is configured to detect a threshold voltage of the first transistor, and is configured to form a diode-connected structure with the first transistor. The output circuit is coupled between the second terminal of the first transistor and a sensing line. The capacitor is coupled between the first node and the light sensing circuit. In response to the light sensing circuit is illuminated by light, the first terminal of the capacitor and the second terminal of the capacitor generate voltage variations simultaneously.