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:
Jul. 28, 2020
Filed:
Nov. 21, 2017
Lite-on Opto Technology (Changzhou) Co., Ltd., Changzhou, Jiangsu, CN;
Lite-on Technology Corporation, Taipei, TW;
Yu-Yu Chang, Kaohsiung, TW;
Shih-Chiang Yen, Taipei, TW;
Yi-Hsuan Chen, New Taipei, TW;
Chen-Hsiu Lin, New Taipei, TW;
LITE-ON OPTO TECHNOLOGY (CHANGZHOU) CO., LTD., Changzhou, Jiangsu Province, CN;
LITE-ON TECHNOLOGY CORPORATION, Taipei, TW;
Abstract
An LED package structure includes a substrate, an electrode layer and an insulating layer in a coplanar arrangement and disposed on the substrate, an LED chip mounted on the electrode layer and the insulating layer, a phosphor sheet covering entirely a top surface of the LED chip, a first translucent layer disposed on a light emitting surface of the phosphor sheet, and a reflective housing covering the side surfaces of the LED chip and the side surfaces of the phosphor sheet. The light emitting surface has a central region and a ring-shaped region surrounding the central region. The first translucent layer covers at least 60% of an area of the ring-shaped region. A refractive index of the first translucent layer is larger than one and is smaller than that of the phosphor sheet. A top surface of the reflective housing is substantially flush with the light emitting surface.