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:
Jul. 13, 2021
Filed:
Nov. 13, 2019
Applicant:
Tcl China Star Optoelectronics Technology Co., Ltd., Guangdong, CN;
Inventor:
Changming Xiang, Guangdong, CN;
Assignee:
TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133615 (2013.01);
Abstract
The backlight module provided by the present invention utilizes a reflection plate and a Fresnel lens disposed between the light-emitting diode (LED) light source and the reflection plate to form a side-lit LED backlight without a light guide plate, which can simplify optical structure of the backlight. From a point of view, heavy weight and high cost problems of the light guide plate is solved while improving illumination efficiency.