- 专利标题: Light-emitting device
-
申请号: US15018704申请日: 2016-02-08
-
公开(公告)号: US09640738B2公开(公告)日: 2017-05-02
- 发明人: Yuta Morimura , Yuhki Ito
- 申请人: TOYODA GOSEI CO., LTD.
- 申请人地址: JP Kiyosu-Shi, Aichi-Ken
- 专利权人: TOYODA GOSEI CO., LTD.
- 当前专利权人: TOYODA GOSEI CO., LTD.
- 当前专利权人地址: JP Kiyosu-Shi, Aichi-Ken
- 代理机构: McGinn IP Law Group, PLLC
- 优先权: JP2015-039142 20150227
- 主分类号: H01L29/49
- IPC分类号: H01L29/49 ; H01L33/50 ; H01L33/56
摘要:
A light-emitting device includes a light-emitting element, a sealing material for sealing the light-emitting element, a phosphor particle having an average particle size of not more than 20 nm and dispersed in the sealing material, a dispersed particle dispersed in the sealing material and forming a three-dimensional network structure in the sealing material, and a light-scattering particle dispersed in the sealing material, having an average particle size greater than that of the phosphor particle and that of the dispersed particle, and having a refractive index greater than that of the sealing material. A concentration gradient of the phosphor particle in a height direction is formed such that a concentration thereof increases according as a position thereof decreases. An average position of the phosphor particle is lower than that of the light-scattering particle.
公开/授权文献
- US20160254417A1 LIGHT-EMITTING DEVICE 公开/授权日:2016-09-01
信息查询
IPC分类: