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. 10, 2026
Filed:
Jun. 28, 2023
Applicant:
Lx Semicon Co., Ltd., Daejeon, KR;
Inventors:
Jangsu Kim, Daejeon, KR;
Sangsuk Kim, Seoul, KR;
Jihwan Kim, Seoul, KR;
Kyeongrok Lee, Seoul, KR;
Jongmin Lee, Seoul, KR;
Assignee:
LX SEMICON CO., LTD., Daejeon, KR;
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/30 (2020.01); H05B 45/325 (2020.01); H05B 45/48 (2020.01);
U.S. Cl.
CPC ...
H05B 45/48 (2020.01); H05B 45/325 (2020.01);
Abstract
An LED driving circuit can include a switching element connected to one end of an LED string and configured to adjust current flowing through the LED string, and a withstanding-voltage reducing circuit connected in parallel with the switching element and configured to allow a leakage current to flow when a voltage at a point connected in parallel with the switching element exceeds a predetermined voltage.
Kim, Jangsu. (2026). Light emitting diode driving circuit and backlight apparatus of display (U.S. Patent No. 12550240). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12550240
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile