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. 06, 2026
Filed:
Sep. 25, 2024
Auo Corporation, Hsinchu, TW;
Kai-Teng Shih, Hsinchu, TW;
Chun-Yu Huang, Hsinchu, TW;
AUO CORPORATION, Hsinchu, TW;
Abstract
A backlight control circuit includes LED circuits, a LED driver circuit, first switches and a switch module circuit. Each LED circuit includes a first and a second terminal. The second terminals of the LED circuits are connected. The LED driver circuit provides driving signals and dimming signal in sequence and provides error detection signals when the LED circuit is shorted or opened. The first switches are connected to the first terminals of the LED circuits for switching on or off the LED circuits based on the error detection signals. The switch module circuit includes second switches and third switches for timing provision of dimming signal. When a short or open circuit occurs, the error detection signal turns off corresponding first switch and third switch, so that the first terminal of the shorted/opened LED circuit is floating, and the second terminals can receive the dimming signal in other timing periods.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile