发明名称 |
Semiconductor light emitting device, light emitting apparatus and production method for semiconductor light emitting DEV |
摘要 |
A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4 , and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr 1-a1-b1-x Ba a1 Ca b1 Eu x ) 2 SiO 4 (0 ‰¦ a1 ‰¦ 0.3, 0 ‰¦ b1 ‰¦ 0.8 and 0 < x < 1). The silicate phosphor particles disperse substantially evenly in the resin easily. As a result, excellent white light is obtained. |
申请公布号 |
EP2017901(A1) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20080014529 |
申请日期 |
2002.09.03 |
申请人 |
PANASONIC CORPORATION |
发明人 |
MAEDA, TOSHIHIDE;OSHIO, SHOZO;IWAMA, KATSUAKI;KITAHARA, HIROMI;IKEDA, TADAAKI;KAMEI, HIDENORI;HANADA, YASUYUKI;SAKANOUE, KEI |
分类号 |
H01L33/32;C09K11/02;H01L33/50;H01L33/56;H01L33/60;H01L33/62 |
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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