发明名称 Light-emitting device
摘要 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).
申请公布号 US8362685(B2) 申请公布日期 2013.01.29
申请号 US201213542051 申请日期 2012.07.05
申请人 SHARP KABUSHIKI KAISHA;MASUDA MASATSUGU;TERASHIMA KENJI 发明人 MASUDA MASATSUGU;TERASHIMA KENJI
分类号 H01J1/62;C09K11/08;H01J63/04;H01L33/50 主分类号 H01J1/62
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