发明授权
US08961827B2 Red fluorescent material, method for producing red fluorescent material, white light source, illuminating device, and liquid crystal display
有权
红色荧光材料,红色荧光材料的制造方法,白色光源,照明装置以及液晶显示装置
- 专利标题: Red fluorescent material, method for producing red fluorescent material, white light source, illuminating device, and liquid crystal display
- 专利标题(中): 红色荧光材料,红色荧光材料的制造方法,白色光源,照明装置以及液晶显示装置
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申请号: US13814671申请日: 2011-12-28
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公开(公告)号: US08961827B2公开(公告)日: 2015-02-24
- 发明人: Takamasa Izawa , Tsuneo Kusunoki
- 申请人: Takamasa Izawa , Tsuneo Kusunoki
- 申请人地址: JP Tokyo
- 专利权人: Dexerials Corporation
- 当前专利权人: Dexerials Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Osha Liang LLP
- 优先权: JP2010-293419 20101228; JP2011-108873 20110514
- 国际申请: PCT/JP2011/080507 WO 20111228
- 国际公布: WO2012/091134 WO 20120705
- 主分类号: C09K11/65
- IPC分类号: C09K11/65 ; C09K11/08 ; F21S2/00 ; F21V9/16 ; G02F1/13357 ; H01L33/50 ; C09K11/77 ; H05B33/12 ; G02F1/1335
摘要:
The present invention provides an efficient red fluorescent material and a method for producing the same, provides a white light source and an illuminating device each of which uses this red fluorescent material to achieve snow-white lighting, and furthermore provides a liquid crystal display having excellent color reproduction. The red fluorescent material contains an element (A), europium (Eu), silicon (Si), carbon (C), oxygen (O), and nitrogen (N), at an atomic ratio of the following in compositional formula (1). [A(m-x)Eux][Si(9-y)Cy]OnN[12-2(n-m)/3] Note that, in the compositional formula (1), element A is group 2 element including at least calcium (Ca) and strontium (Sr). Also, note that, in the composition formula (1), m, x, y, and n satisfy 3
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