Electroluminescent device
    2.
    发明授权
    Electroluminescent device 失效
    电致发光器件

    公开(公告)号:US5227252A

    公开(公告)日:1993-07-13

    申请号:US643985

    申请日:1991-01-22

    摘要: Electroluminescent device with improved luminous efficiency, where a fluorescent emitting layer and a positive-hole transporting layer are layered on each other and arranged between a cathode and an anode, the two layers comprising organic compounds and the fluorescent emitting layer being composed of quinoline derivative as a host material, characterized by containing in the fluorescent emitting layer, as a guest material, a quinacridone compound of the following formula (A); ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, methyl group or chlorine or the dehydro form of the quinacridone compound.

    摘要翻译: 荧光发射层和正空穴传输层彼此层叠并且布置在阴极和阳极之间的具有改善的发光效率的电致发光器件,两层包括有机化合物,并且荧光发射层由喹啉衍生物 其特征在于,在所述荧光发光层中含有下述式(A)的喹吖啶酮化合物作为客体材料。 (A)其中R 1和R 2独立地是氢,甲基或氯或脱氢形式的喹吖啶酮化合物。

    Electroluminescent device
    4.
    发明授权
    Electroluminescent device 失效
    电致发光器件

    公开(公告)号:US5122711A

    公开(公告)日:1992-06-16

    申请号:US402579

    申请日:1989-09-05

    CPC分类号: H05B33/14 C09K11/06

    摘要: An electroluminescent device comprising a fluophor luminescent layer and a hole transport layer respectively composed of organic compounds and laminated to each other disposed between a cathode and an anode, said fluophor luminescent layer comprising a pair of fluophor thin films laminated in each other, the material of the cathode-side film having a larger electron transport capacity than the material of the anode-side film.

    摘要翻译: 一种电致发光器件,包括分别由有机化合物构成并层叠在阴极和阳极之间的荧光发光层和空穴传输层,所述荧光发光层包括彼此层叠的一对荧光薄膜, 阴极侧膜具有比阳极侧膜的材料更大的电子传输能力。