发明名称 |
Light emitting device having sub barrier layers with varying energy bands, light emitting device package and lighting system including the light emitting device package |
摘要 |
A light emitting device includes an active layer including a quantum barrier and a quantum well, a first conductive type semiconductor layer disposed at one side of the active layer, and a second conductive type semiconductor layer disposed at the other side of the active layer, wherein the first conductive type semiconductor layer or the second conductive type semiconductor layer includes a main barrier layer, and the main barrier layer includes a plurality of sub barrier layers and a basal layer disposed between the plurality of sub barrier layers. The plurality of sub barrier layers includes a first section in which energy band gaps of the plurality of sub barrier layers are increased and a second section in which energy band gaps of the plurality of sub barrier layers are decreased. |
申请公布号 |
US8669545(B2) |
申请公布日期 |
2014.03.11 |
申请号 |
US201213367829 |
申请日期 |
2012.02.07 |
申请人 |
SONG YONG SEON;MOON YONG TAE;LG INNOTEK CO., LTD. |
发明人 |
SONG YONG SEON;MOON YONG TAE |
分类号 |
H01L29/06 |
主分类号 |
H01L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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