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:
Jun. 03, 2014
Filed:
Feb. 03, 2011
Sun Kyung Kim, Seoul, KR;
Woon Kyung Choi, Seoul, KR;
Sun Kyung Kim, Seoul, KR;
Woon Kyung Choi, Seoul, KR;
LG Innotek Co., Ltd., Seoul, KR;
Abstract
Disclosed are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes a light emitting structure including a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer; a substrate over the light emitting structure; a first reflective layer having a plurality of dielectric layers including a first dielectric layer having a first refractive index over the substrate, and a second dielectric layer having a second refractive index different from the first refractive index over the first dielectric layer; and a second reflective layer over the first reflective layer, the second reflective layer having a refractive index lower than the refractive index of each dielectric layer of the first reflective layer.