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.:

US 9482806 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 01, 2016

Filed:

Oct. 31, 2015
Applicant:

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

Inventor:

Jianfa Huang, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0043 (2013.01); G02B 6/0035 (2013.01); G02B 6/0055 (2013.01); G02B 6/0061 (2013.01); G02B 6/0068 (2013.01); G02F 1/133605 (2013.01); G02F 1/133615 (2013.01); G02B 6/0073 (2013.01); G02F 2001/133614 (2013.01);
Abstract

A backlight module includes a light source, a waveguide, a reflector, and an optical film. The waveguide includes a light inlet surface facing the light source, a light emitting surface adjacent to the light inlet surface, and a bottom surface opposite to the light emitting surface. The reflector is disposed under the bottom surface of the waveguide. The optical film is disposed above the light emitting surface of the waveguide. The reflector is coated with a gradation color layer composed by yellow graduating to blue so as to ensure projection of light from the light source is homogeneous with reduced chromatic aberration.


Find Patent Forward Citations

Huang, Jianfa. (2016). Backlight for liquid crystal display device having a reflector being coated with a gradation color layer composed by yellow (U.S. Patent No. 9482806). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9482806

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