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热词
    • 3. 发明授权
    • Light-emitting element, light-emitting device, display, and electronic apparatus
    • 发光元件,发光元件,显示器和电子设备
    • US08587000B2
    • 2013-11-19
    • US12718558
    • 2010-03-05
    • Hidetoshi YamamotoTetsuji Fujita
    • Hidetoshi YamamotoTetsuji Fujita
    • H01L27/15
    • H01L51/5036H01L27/322
    • A light-emitting element includes a cathode; an anode; and a light-emitting section which is disposed between the cathode and the anode and which includes a first light-emitting layer, second light-emitting layer, and third light-emitting layer each containing a corresponding one of luminescent materials emitting light of different colors and host materials supporting the luminescent materials. The first, second, and third light-emitting layers commonly contain a first host material that is one of the host materials. The first light-emitting layer emits light of a first color having a longer wavelength as compared to light emitted from the second and third light-emitting layers and contains a second host material which is one of the host materials and which is different from the first host material. The second host material is superior in enhancing the luminescence of the first light-emitting layer to the first host material.
    • 发光元件包括阴极; 阳极; 以及配置在所述阴极和所述阳极之间的发光部,所述发光部包括第一发光层,第二发光层和第三发光层,所述第一发光层,第二发光层和第三发光层各自包含发射不同颜色的光的发光材料 和支持发光材料的主体材料。 第一,第二和第三发光层通常包含作为主体材料之一的第一主体材料。 与第二发光层和第三发光层发射的光相比,第一发光层发射具有较长波长的第一颜色的光,并且包含作为主体材料之一并且与第一发光层不同的第二主体材料 主机材料。 第二主体材料在提高第一发光层对第一主体材料的发光方面是优异的。