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:
Aug. 13, 2019
Filed:
Feb. 24, 2016
Lg Innotek Co., Ltd., Seoul, KR;
Jung Yeop Hong, Seoul, KR;
Myung Hee Kim, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
The present embodiments relate a light emitting device. According to the present embodiment, there is provided a light emitting device includes: a first conductive semiconductor layer; an active layer that is disposed on the first conductive semiconductor layer and has a plurality of barrier layers and a plurality of well layers; a plurality of superlattice layers that is disposed under the first conductive semiconductor layer; and a second conductive semiconductor layer which is disposed on the active layer, in which the plurality of superlattice layers include at least three superlattice layers, in which each of the at least three superlattice layers has a plurality of pairs of at least a first layer and a second layer, in which composition of aluminum in the first layer of the superlattice layer is gradually decreased, as the superlattice layer among the at least three superlattice layers is one which is positioned to be adjacent to the active layer, and in which each of the at least three superlattice layers has the same composition of aluminum in the second layer.