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:
Aug. 05, 2014
Filed:
Oct. 07, 2013
Epistar Corporation, Hsinchu, TW;
Min-Hsun Hsieh, Hsinchu, TW;
Chien-Yuan Wang, Hsinchu, TW;
Tsung-Xian Lee, Hsinchu, TW;
Chih-Ming Wang, Hsinchu, TW;
Ming-Chi Hsu, Hsinchu, TW;
Han-Min Wu, Hsinchu, TW;
Epistar Corporation, Hsinchu, TW;
Abstract
Disclosed is a light-emitting device comprising: a carrier; a light-emitting element disposed on the carrier; a first light guide layer covering the light-emitting element; a second light guide layer covering the first light guide layer; a low refractive index layer between the first light guide layer and the second light guide layer to reflect the light from the second light guide layer; and a wavelength conversion layer covering the second light guide layer; wherein the low refractive index layer has a refractive index smaller than one of the refractive indices of first light guide layer and the second light guide layer.