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.

Date of Patent:
Jan. 16, 2024

Filed:

Aug. 10, 2020
Applicant:

Tcl China Star Optoelectronics Technology Co., Ltd., Guangdong, CN;

Inventor:

Kaifeng Zhou, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/34 (2020.01); H05B 45/54 (2020.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
H05B 45/34 (2020.01); G02B 6/0051 (2013.01); G02B 6/0053 (2013.01); G02B 6/0055 (2013.01); G02B 6/0073 (2013.01); H05B 45/54 (2020.01);
Abstract

A light-emitting diode (LED) backlight driving circuit is provided. The LED backlight driving circuit includes M LED light-emitting unit groups connected in series and each of the LED light-emitting unit groups includes N LED light-emitting units connected in parallel, where both N and M are an integer greater than 1, wherein each of the LED light-emitting units is connected in series with at least a variable resistor with variable resistance for balancing a voltage difference. The present application further provides a backlight module and a liquid crystal display device manufactured using the LED backlight driving circuit.


Find Patent Forward Citations

Loading…