Light source device
    1.
    发明公开
    Light source device 审中-公开
    光源装置

    公开(公告)号:EP2843299A1

    公开(公告)日:2015-03-04

    申请号:EP14180117.5

    申请日:2014-08-07

    摘要: A light source device (20;40) is provided. The light source device (20;40) comprises a semiconductor light-emitting element (12); and a wavelength conversion member (21;41) for converting a wavelength of a light emitted from the semiconductor light-emitting element (12). The semiconductor light-emitting element (12) has a light-emitting peak wavelength of not less than 380 nanometers and not more than 420 nanometers. The light emitted from the semiconductor light-emitting element (12) has a light energy density of not less than 0.2kW/cm 2 . The wavelength conversion member (21;41) contains at least one fluorescent substance selected from the group consisting of a (Sr 1-x Ba x ) 3 MgSi 2 O 8 :Eu 2+ (0≤x≤1) fluorescent substance, a (Y 1-y Gd y ) 3 (Al 1-z Ga z ) 5 O 12 :Ce 3+ (0≤y 3+ -activated fluorescent substance. The light source device (20;40) has a high output and a high light-emitting efficiency.

    摘要翻译: 提供一种光源装置(20; 40)。 光源装置20,40包括半导体发光元件12, 和用于转换从半导体发光元件(12)发射的光的波长的波长转换构件(21; 41)。 半导体发光元件(12)具有不小于380纳米且不大于420纳米的发光峰值波长。 从半导体发光元件(12)发射的光具有不小于0.2kW / cm 2的光能密度。 波长转换部件(21; 41)含有选自由(Sr1-xBax)3MgSi2O8:Eu2 +(0≤x≤1)荧光物质,(Y1-yGdy)3(Al1- zGaz)5O12:Ce3 +(0≤y<1,0≤z<1)荧光物质和Eu3 +活化荧光物质。 光源装置(20; 40)具有高输出和高发光效率。

    Phosphor, method of manufacturing it and plasma display panel containing this phosphor
    5.
    发明公开
    Phosphor, method of manufacturing it and plasma display panel containing this phosphor 有权
    荧光体,其制备方法和等离子屏幕,含有这些荧光体

    公开(公告)号:EP1513182A3

    公开(公告)日:2009-09-02

    申请号:EP04255276.0

    申请日:2004-09-01

    IPC分类号: H01J1/63 C09K11/64

    CPC分类号: H01J1/63 C09K11/7706

    摘要: The present invention aims to provide a Eu-activated phosphor that maintains high wavelength conversion efficiency and suppresses deterioration with time due to vacuum ultraviolet irradiation, as well as a plasma display panel having superior display performance by suppressing sticking image caused by deterioration of the phosphor with time.
    To this end, the present invention provides a europium-activated phosphor where a divalent europium ratio of each phosphor particle constituting the phosphor is lower at and in a vicinity of a particle surface than for the particle as a whole.
    With such phosphor particles, it is possible to obtain the Eu-activated phosphor that has high maintaining ratio of emission intensity and high performance in suppressing deterioration with time in comparison with a conventional phosphor.