发明名称 |
LIGHT-EMITTING DEVICE |
摘要 |
A light-emitting device of the present invention includes: a semiconductor layer 1 including a light-emitting layer 12; a recess/projection portion 14 including recesses and projections formed in a pitch larger than a wavelength of light emitted from the light-emitting layer 12, the recess/projection portion 14 being formed in a whole area or a partial area of the surface of the semiconductor layer which light is emitted from; and a reflective layer formed on an opposite surface of the semiconductor layer to the surface from which light is emitted, the reflective layer having a reflectance of 90% or more. According to the light-emitting device having such arrangement, the light can be emitted efficiently by synergetic effect of the reflective layer and the recess/projection portion.
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申请公布号 |
US2009267092(A1) |
申请公布日期 |
2009.10.29 |
申请号 |
US20070813370 |
申请日期 |
2007.03.09 |
申请人 |
MATSUSHITA ELECTRIC WORKS, LTD. |
发明人 |
FUKSHIMA HIROSHI;YASUDA MASAHARU;YAMAE KAZUYUKI |
分类号 |
H01L33/20;H01L33/22;H01L33/40 |
主分类号 |
H01L33/20 |
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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