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. 25, 2019
Filed:
May. 19, 2016
Lg Innotek Co., Ltd., Seoul, KR;
Chong Cook Kim, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
Disclosed in one embodiment is a light-emitting device comprising: a first semiconductor layer; an active layer arranged on the first semiconductor layer and including a plurality of first uneven portions; an electron blocking layer including a plurality of second uneven portions arranged on the plurality of first uneven portions; and a second semiconductor layer formed on the electron blocking layer, wherein the electron blocking layer has at least two doping concentration peak sections of a p-type dopant in the thickness direction.
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