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. 02, 2019
Filed:
Jan. 08, 2018
Seoul Viosys Co., Ltd., Ansan-si, KR;
Ye Seul Kim, Ansan-si, KR;
Kyoung Wan Kim, Ansan-si, KR;
Ji Hye Kim, Ansan-si, KR;
Sang Won Woo, Ansan-si, KR;
SEOUL VIOSYS CO., LTD., Ansan-si, KR;
Abstract
Described herein is a highly efficient light emitting device. The light emitting device includes: a first conductivity-type semiconductor layer; a second conductivity-type semiconductor layer; an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer; a current blocking layer disposed on the second conductivity-type semiconductor layer; a transparent electrode layer covering the current blocking layer; a first electrode electrically connected to the first conductivity-type semiconductor layer; a second electrode disposed on the transparent electrode layer and electrically connected to the transparent electrode layer, the second electrode including a second electrode pad and a second electrode extension extending from the second electrode pad; and a second reflective layer interposed between the second electrode and the transparent electrode layer, wherein each of the second electrode pad and the second electrode extension covers at least part of the current blocking layer.