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. 28, 2018
Filed:
Dec. 30, 2016
Epistar Corporation, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device includes a light-emitting element, a wavelength conversion layer and a light pervious element. The light-emitting element includes a top surface, a bottom surface, a plurality of side surfaces connecting to the top surface and the bottom surface, and a first electrical contact formed on the bottom surface. The wavelength conversion layer covers the top surface of the light-emitting element to form a first thickness, has an average thickness, and includes a transparent binder and a plurality of wavelength conversion particles having an equivalent particle diameter D. The light pervious element includes a light exiting surface and is disposed on the wavelength conversion layer. The Dof the wavelength conversion particles is not great than 10 μm. A ratio of the average thickness to the Dof the wavelength conversion layer is ranged from 6 to 20.