发明名称 |
FLUORESCENT SUBSTANCE AND LIGHT EMITTING DEVICE |
摘要 |
<p>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·y 1 EuO·y 2 EuO 3/2 ·DO·zSiO 2 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‰ y 1 +y 2 ‰ 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.</p> |
申请公布号 |
EP1876213(A1) |
申请公布日期 |
2008.01.09 |
申请号 |
EP20060731894 |
申请日期 |
2006.04.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
OKUYAMA, KOJIRO;ZUKAWA, TAKEHIRO;SAKAI, MASAHIRO;SHIRAISHI, SEIGO |
分类号 |
C09K11/77;C09K11/59;C09K11/79;H01J11/02 |
主分类号 |
C09K11/77 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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