Wavelength conversion structure, manufacturing method thereof, and light-emitting device comprising the wavelength conversion structure
- 申请公布号：
- US8853937(B2)
- 申请号：
- US201213588005
- 申请日期：
- 2012.08.17
- 申请公布日期：
- 2014.10.07
- 申请人：
- Epistar Corporation
- 发明人：
- Hsieh Min-Hsun;Hong Steve Meng-Yuan;Huang Yi-Jui;Hsu Ming-Chi
- 分类号：
- H01J1/62;H01J63/04;B32B9/04;H05B33/10;B32B5/16;H01L33/50
- 主分类号：
- H01J1/62
- 代理机构：
- Ditthavong & Steiner, P.C.
- 代理人：
- Ditthavong & Steiner, P.C.
- 地址：
- Hsinchu TW
- 摘要：
- A wavelength conversion structure comprises a first phosphor layer and a second phosphor layer formed on the first phosphor layer, wherein the first phosphor layer comprises a plurality of first phosphor particles, and the second phosphor layer comprises a plurality of second phosphor particles. The average particle size of the second phosphor particles is not equal to that of the first phosphor particles.
- 主权项：
- 1. A light-emitting device, comprising:
a light-emitting element; a first phosphor layer comprising a plurality of first phosphor particles; a second phosphor layer formed between the first phosphor layer and the light-emitting element, wherein the second phosphor layer comprises a plurality of second phosphor particles, the average particle size of the second phosphor particles is larger than that of the first phosphor particles, and the range of the average particle size of the second phosphor particles is between 675 nm and 1375 nm; and an inorganic compound formed between the first phosphor particles and/or the second phosphor particles.
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