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. 18, 2022
Filed:
Nov. 08, 2020
AU Optronics Corporation, Hsinchu, TW;
Peng-Bo Xi, Hsinchu, TW;
Yan-Ru Chen, Hsinchu, TW;
Au Optronics Corporation, Hsinchu, TW;
Abstract
A display apparatus and a pixel circuit thereof are provided. The pixel circuit is configured to drive a light-emitting diode (LED). The pixel circuit includes a driving transistor, a switch, a data writing circuit, and a voltage selector. The switch is turned on during a data-writing time period, and cut-off during a laser time period. The data writing circuit transports a data voltage to a control terminal of the driving transistor during the data-writing time period. During the data-writing time period, a second terminal of the LED receives a first reference voltage, and during the laser time period, the second terminal of the LED receives a second reference voltage. The first reference voltage and the second reference voltage are different.