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:
Dec. 29, 2020
Filed:
Mar. 16, 2020
Applicant:
Epistar Corporation, Hsinchu, TW;
Inventors:
Chiu-Lin Yao, Hsinchu, TW;
Shuo-Chieh Kan, Hsinchu, TW;
Chun-Wei Lin, Hsinchu, TW;
Been-Yu Liaw, Hsinchu, TW;
Assignee:
EPISTAR CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 33/60 (2010.01); H01L 33/54 (2010.01); F21K 9/90 (2016.01); F21K 9/232 (2016.01); H01L 33/50 (2010.01); H01L 25/075 (2006.01); H01L 33/62 (2010.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01); F21Y 107/00 (2016.01);
U.S. Cl.
CPC ...
H01L 33/60 (2013.01); F21K 9/232 (2016.08); F21K 9/90 (2013.01); H01L 33/54 (2013.01); F21Y 2103/10 (2016.08); F21Y 2107/00 (2016.08); F21Y 2115/10 (2016.08); H01L 25/0753 (2013.01); H01L 33/502 (2013.01); H01L 33/62 (2013.01); H01L 2224/04105 (2013.01); H01L 2224/16227 (2013.01); H01L 2224/18 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0091 (2013.01);
Abstract
A light-emitting device includes a carrier with a first surface and a second surface opposite to the first surface; and a light-emitting unit disposed on the first surface and configured to emit a light toward but not passing through the first surface. When emitting the light, the light-emitting device has a first light intensity above the first surface, and a second light intensity under the second surface, a ratio of the first light intensity to the second light intensity is in a range of 2˜9.