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:
Sep. 15, 2020

Filed:

Aug. 24, 2018
Applicant:

Huizhou China Star Optoelectronics Technology Co.,ltd., Huizhou Guangdong, CN;

Inventors:

Jianyu Chang, Huizhou Guangdong, CN;

Yungjui Lee, Huizhou Guangdong, CN;

Yuchun Hsiao, Huizhou Guangdong, CN;

Shengjer Changchien, Huizhou Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 21/00 (2006.01); F21V 8/00 (2006.01); F21V 9/32 (2018.01); F21V 9/38 (2018.01);
U.S. Cl.
CPC ...
G02B 6/0051 (2013.01); F21V 9/32 (2018.02); F21V 9/38 (2018.02); G02B 6/0088 (2013.01);
Abstract

The present disclosure relates to an optical film configured on a top of a light guide plate. The optical film is made of quantum dot (QD) material, and the optical film is filled with a plurality of diffusion particles configured to uniformly distribute incident light toward different angles. As such, the backlight emitted from the backlight module may be uniform and may be emitted toward different angles, the color difference and the chromaticity of the display device from different viewing angles may be the same, and the performance of the display device may be improved.


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