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    • 9. 发明申请
    • LIGHT-EMITTING DEVICE
    • 发光装置
    • US20140361332A1
    • 2014-12-11
    • US14470153
    • 2014-08-27
    • SHARP KABUSHIKI KAISHA
    • Masatsugu MasudaKenji Terashima
    • H01L33/50
    • H01L33/504C09K11/0883C09K11/7734G02F1/1336G02F2001/133614H01L33/32H01L33/502H01L33/505H01L33/507H01L33/56H01L2224/48091H01L2224/48247H05B33/14H01L2924/00014
    • Disclosed is a light-emitting device (1) including a light-emitting element (2) emitting primary light, and a light converter (3) absorbing a part of the primary light emitted from the light-emitting element (2) and emitting secondary light having a longer wavelength than the primary light. The light converter (3) contains a green light-emitting phosphor (4) and a red light-emitting phosphor (5). The green light-emitting phosphor (4) is composed of at least one phosphor selected from a divalent europium-activated oxynitride phosphor substantially represented by the following formula: EuaSibAlcOdNe and a divalent europium-activated silicate phosphor substantially represented by the following formula: 2(Ba1-f-gMIfEug)O.SiO2, while the red light-emitting phosphor (5) is composed of at least one phosphor selected from tetravalent manganese-activated fluoro-tetravalent metalate phosphors substantially represented by the following formulae: MII2(MIII1-hMnh)F6 and/or MIV(MIII1-hMnh)F6. Consequently, the light-emitting device (1) has excellent color gamut (NTSC ratio).
    • 公开了一种发光装置(1),其包括发射初级光的发光元件(2)和吸收从发光元件(2)发射的一次光的一部分并发射次级的光转换器(3) 具有比初级光更长的波长的光。 光转换器(3)包含绿色发光荧光体(4)和红色发光荧光体(5)。 绿色发光荧光体(4)由选自实质上由下式表示的二价铕活化氮氧化物荧光体中的至少一种荧光体构成:EuaSibAlcOdNe和基本上由下式表示的二价铕活化硅酸盐荧光体:2( BaI-f-gMIfEug)O.SiO 2,而红色发光荧光体(5)由至少一种选自基本上由下式表示的四价锰活化的氟代四价金属化物荧光体的荧光体组成:MII2(MIII1-hMnh )F6和/或MIV(MIII1-hMnh)F6。 因此,发光装置(1)具有优异的色域(NTSC比)。