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:
Oct. 30, 2018
Filed:
Mar. 24, 2017
Applicant:
Chengfeng Optronics Corporation, Taichung, TW;
Inventor:
Ching-Fang Wong, Taichung, TW;
Assignee:
ChengFeng Optronics Corporation, Taichung, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/028 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0055 (2013.01); G02B 6/005 (2013.01); G02B 6/0088 (2013.01);
Abstract
A light guide plate including a light guide main body and an index matching layer is provided. The light guide main body has a light-emitting surface and a bottom surface opposite to the light-emitting surface. The index matching layer is disposed adjacent to the bottom surface, wherein a refractive index of the light guide main body is n1, and a refractive index of the index matching layer is n2. 1.07*n2≤n1≤1.7*n2, and 0.1≤(n1−n2)≤0.7. A thickness of the index matching layer is larger than 500 nm. A backlight module and a display apparatus are also provided.