发明申请
- 专利标题： PHOSPHOR AND LIGHT-EMITTING DEVICE
- 专利标题（中）： 磷光和发光装置
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申请号： US11911402申请日： 2006-04-14
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公开(公告)号： US20090072704A1公开(公告)日： 2009-03-19
- 发明人: Kojiro Okuyama , Takehiro Zukawa , Masahiro Sakai , Seigo Shiraishi
- 申请人： Kojiro Okuyama , Takehiro Zukawa , Masahiro Sakai , Seigo Shiraishi
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 优先权： JP2005-117896 20050415
- 国际申请： PCT/JP2006/307958 WO 20060414
- 主分类号： H01J1/63
- IPC分类号： H01J1/63
摘要：
The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO.y1EuO.y2EuO3/2.DO.zSiO2 wherein A is at least one selected from Ca, Sr and Ba, D is at least one selected from Mg and Zn, and 2.970≦x≦3.500, 0.001≦y1+y2≦0.030, and 1.900≦z≦2.100 are satisfied, and that has 50 mol % or less of the divalent Eu ratio (ratio of the divalent Eu element to the total of the Eu elements) in the vicinity of the surface of the phosphor particle.
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