发明名称 |
Fluorescence light emitting element comprising a phosphor layer including phosphors and a binder made of an inorganic material |
摘要 |
A fluorescence light emitting element includes a phosphor layer that includes phosphors and a binder made of an inorganic material. A thermal conductivity B of the binder is larger than 1.88 times a thermal conductivity A of the phosphors. When the volume of the phosphors included in the phosphor layer is X and the volume of the binder included in the phosphor layer is Y, a relationship of X/Y>1/2 is satisfied. |
申请公布号 |
US9475983(B2) |
申请公布日期 |
2016.10.25 |
申请号 |
US201414525363 |
申请日期 |
2014.10.28 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
Kuroi Kiyoshi;Hashizume Toshiaki |
分类号 |
H01L33/50;G03B21/20;C09K11/02;G03B21/00;C09K11/77 |
主分类号 |
H01L33/50 |
代理机构 |
Oliff PLC |
代理人 |
Oliff PLC |
主权项 |
1. A fluorescence light emitting element comprising:
a phosphor layer that includes phosphors and a binder made of an inorganic material, wherein a thermal conductivity B of the binder is larger than 1.88 times a thermal conductivity A of the phosphors, and a relationship of X/Y>1/2 is satisfied, where X denotes a volume of the phosphors included in the phosphor layer, and Y denotes a volume of the binder included in the phosphor layer. |
地址 |
Tokyo JP |