发明名称 |
Red phosphor and method of preparing the same, and red light emitting diode, white light emitting diode, and active dynamic liquid crystal device using the red phosphor |
摘要 |
Provided is a red phosphor represented by formula 1: <?in-line-formulae description="In-line Formulae" end="lead"?>(Li(2-z)-xMx)(MoO4)y:Euz,Smq (1)<?in-line-formulae description="In-line Formulae" end="tail"?> where M is an element selected from K, Mg, Na, Ca, Sr, and Ba, 0<=x<=2, 0.5<=y<=5, 0.01<=z<=1.5, and 0.001<=q<=1.0. The red phosphor has emission characteristics such as high brightness when excited by, in particular, an excitation light source of around 405 nm. The red phosphor is 6 times brighter than conventional phosphors. Furthermore, the red phosphor can be used in a red light emitting diode (LED) that has a UV excitation light source, a white LED, and an active dynamic liquid crystal device (LCD). In addition, the white LED using the red phosphor has a color rendering index of 90 or greater and so has excellent color rendition. |
申请公布号 |
EP1528095(B1) |
申请公布日期 |
2012.02.15 |
申请号 |
EP20040256679 |
申请日期 |
2004.10.28 |
申请人 |
SAMSUNG LED CO., LTD.;KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
KANG, YUN CHAN, 102-604 HANBIT APT.;CHO, JAE-HEE, 202-1201 SINIL APT.;SONE, CHEOL-SOO, 504-803 CHOWON MAEUL LUCKY APT. |
分类号 |
C09K11/77;G02F1/13357;C09K11/08;C09K11/59;C09K11/68;C09K11/73;H01L33/50;H01L33/54;H01L33/56 |
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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