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. 29, 2021
Filed:
Sep. 06, 2018
Hangzhou Shixin Technology Co., Ltd., Hangzhou, CN;
Zheng Luo, Hangzhou, CN;
HANGZHOU SHIXIN TECHNOLOGY CO., LTD., Hangzhou, CN;
Abstract
Disclosed is an LED display device and a method for driving the same. The LED display device comprises: an LED array comprising LEDs; a row driving module having output terminals, each of which is connected to a corresponding LED row for providing a supply voltage; constant current sources, each of which controls a driving current flowing through a corresponding LED column when a corresponding LED row is powered by the supply voltage; and voltage limiting modules, each of which is connected between a corresponding constant current source and a corresponding LED column. Current paths through a short-circuited LED and an open-circuited LED are disconnected by a corresponding voltage limiting module when there is a short-open failure in the LEDs. The LED display device can be used to improve image quality and reduce power consumption even if there is a short-open failure in the LEDs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile