发明名称 |
Phosphor particle group, light emitting apparatus using the same, and liquid crystal display television |
摘要 |
Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein a mean value of a value obtained by dividing a longer particle diameter by a shorter particle diameter is not greater than 1.75. Also provided are a light emitting apparatus using the phosphor particle group in a light converter, and a liquid crystal display television using the light emitting apparatus. With these, a high-efficiency and stable light emitting apparatus using a β-type SiAlON, and a phosphor particle group therefor are provided. |
申请公布号 |
US9000664(B2) |
申请公布日期 |
2015.04.07 |
申请号 |
US201013263053 |
申请日期 |
2010.04.02 |
申请人 |
Sharp Kabushiki Kaisha;Denki Kagaku Kogyo Kabushiki Kaisha |
发明人 |
Hanamoto Tetsuya;Masuda Masatsugu;Terashima Kenji;Emoto Hideyuki;Nagasaki Hironori |
分类号 |
C09K11/64;C09K11/78;H01L33/50;C09K11/77;C09K11/08;H05B33/14 |
主分类号 |
C09K11/64 |
代理机构 |
Morrison & Foerster LLP |
代理人 |
Morrison & Foerster LLP |
主权项 |
1. A phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein a mean value of a value obtained by dividing a longer particle diameter by a shorter particle diameter is not greater than 1.75, and 0.15≦d and c≧0.3 in the general formula. |
地址 |
Osaka-shi JP |