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:
Sep. 17, 2013
Filed:
Feb. 03, 2012
Applicants:
Yong Tae Moon, Seoul, KR;
Seoung Hwan Park, Seoul, KR;
Inventors:
Yong Tae Moon, Seoul, KR;
Seoung Hwan Park, Seoul, KR;
Assignee:
LG Innotek Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a light emitting device, a method for manufacturing the light emitting device, a light emitting device package, and a lighting system. The light emitting device of the embodiment includes a first conductive semiconductor layer; a second conductive semiconductor layer; and a active layer including a quantum well and a quantum bather between the first conductive semiconductor layer and the second conductive semiconductor layer, wherein the energy band gap of the quantum well is gradually changed into parabolic toward a center of the quantum well.