发明名称 |
WHITE LIGHT EMITTING DEVICE AND LIGHTING DEVICE |
摘要 |
The present invention provides a technology that allows reducing the used amount of a Mn 4+ -activated fluoride complex phosphor without loss of luminous efficiency, in a white light-emitting device that is provided with the Mn 4+ -activated fluoride complex phosphor and an LED element that is an excitation source of the phosphor. The present invention provides a white light-emitting device comprises a blue LED element, as well as a yellow phosphor and/or a green phosphor and a red phosphor as phosphors that are excited by the blue LED element. The red phosphor contains a Mn 4+ -activated fluoride complex phosphor and a Eu 2+ -activated alkaline earth silicon nitride phosphor. |
申请公布号 |
EP2629341(A4) |
申请公布日期 |
2016.03.23 |
申请号 |
EP20110832628 |
申请日期 |
2011.10.14 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
SAKUTA, HIROAKI;SATOU, YOSHIHITO;KIJIMA, NAOTO;HONG, BYUNGCHUL |
分类号 |
H01L33/50;C09K11/08;C09K11/57;C09K11/59;C09K11/61;C09K11/64;C09K11/77 |
主分类号 |
H01L33/50 |
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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