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. 10, 2014
Filed:
Jan. 25, 2012
Jong Pil Jeong, Seoul, KR;
Jung Hyun Hwang, Seoul, KR;
Chong Cook Kim, Seoul, KR;
Sung Jin Son, Seoul, KR;
Jong Pil Jeong, Seoul, KR;
Jung Hyun Hwang, Seoul, KR;
Chong Cook Kim, Seoul, KR;
Sung Jin Son, Seoul, KR;
LG Innotek Co., Ltd., Seoul, KR;
Abstract
Provided are a light emitting device, a method of fabricating the light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first conductive type semiconductor layer, a light emitting layer over the first conductive type semiconductor layer, an electron blocking layer over the light emitting layer, and a second conductive type semiconductor layer over the electron blocking layer. The electron blocking layer comprises a pattern having a height difference.