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    • 5. 发明授权
    • Light emitting device, and lighting system, backlight for display and display using the same
    • 发光装置和照明系统,用于显示和显示的背光
    • US07474050B2
    • 2009-01-06
    • US11631396
    • 2005-06-29
    • Hideaki KanedaNaoto KijimaEiji Hattori
    • Hideaki KanedaNaoto KijimaEiji Hattori
    • H05B33/00H01J1/62
    • H01L33/504G02F1/133603G02F1/133617H01L33/54H01L33/60H01L2224/45144H01L2224/48091H01L2224/49107H01L2224/73265H01L2924/00014H01L2924/00
    • A light emitting device for enhancing emission efficiency and color rendering, comprising: a light source; a first emitting section having a luminescent material emitting light including a wavelength component longer than that of light from the light source when excited by the light from the light source; a second emitting section having a luminescent material emitting light including a wavelength component longer than that of the light from the first emitting section when excited by the lights from the light source and the first emitting section; and a light exit side from which the light from the light source, the first light-emitting section and the second light-emitting section emerges outside; and the first emitting section and the second emitting section are opened at the light exit side, and an area of a boundary surface between the first emitting section and the second emitting section is equal to or less than fifty percent of the surface area of the first emitting section.
    • 一种用于提高发光效率和显色性的发光装置,包括:光源; 第一发射部分,其具有发射光的发光材料,所述发光材料当被来自所述光源的光激发时,发射包括比来自所述光源的光的波长分量更长的波长成分; 第二发射部分,其具有发光的光,所述发光材料当被来自所述光源和所述第一发射部分的光激发时,发射包括比来自所述第一发射部分的光的波长分量更长的波长成分; 以及光出射侧,来自所述光源的所述光,所述第一发光部和所述第二发光部从所述光出射侧露出; 并且所述第一发光部和所述第二发光部在所述光出射侧开口,所述第一发光部和所述第二发光部之间的边界面的面积为所述第一发光部和所述第二发光部的表面积的50%以下 发射部分。