发明名称 |
LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE |
摘要 |
A light emitting device includes a light emitting layer, a substrate that is transparent to an emission wavelength of the light emitting layer and positioned to receive an emission wavelength from the light emitting layer, a convex pattern including a collection of a plurality of convex portions discretely arranged on a front surface of the substrate with a first pitch, an n type nitride semiconductor layer located on the front surface of the substrate to cover the convex pattern and a p type nitride semiconductor layer located on the light emitting layer. The light emitting layer is located on the n type semiconductor layer. Each of the convex portions includes a sub convex pattern comprising a plurality of fine convex portions discretely formed at the top of the convex portion with a second pitch smaller than the first pitch, and a base supporting the sub convex pattern.
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申请公布号 |
US2013056748(A1) |
申请公布日期 |
2013.03.07 |
申请号 |
US201213601527 |
申请日期 |
2012.08.31 |
申请人 |
MATSUI NOBUAKI;OBUCHI HIROTAKA;NAKANISHI YASUO;TSUTSUMI KAZUAKI;FUJIMORI TAKAO;ROHM CO., LTD. |
发明人 |
MATSUI NOBUAKI;OBUCHI HIROTAKA;NAKANISHI YASUO;TSUTSUMI KAZUAKI;FUJIMORI TAKAO |
分类号 |
H01L33/32 |
主分类号 |
H01L33/32 |
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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