Thin film EL devices and process for producing the same
    1.
    发明授权
    Thin film EL devices and process for producing the same 失效
    薄膜EL器件及其制造方法

    公开(公告)号:US4707419A

    公开(公告)日:1987-11-17

    申请号:US867814

    申请日:1986-05-27

    IPC分类号: H05B33/18 B32B9/04 B32B17/06

    CPC分类号: H05B33/18 Y10S428/917

    摘要: The present invention provides a thin film EL device comprising an electrode layer, an emitting layer and an electrode layer formed on a substrate one over another, and an insulating layer interposed between the three layers, the emitting layer containing atoms of a rare-earth element and fluorine atoms in its host material, the atom ratio (F/RE) of the fluorine atoms (F) to the rare-earth atoms (RE) being adjusted to the range of 0.5 to 2.5, and a process for producing the EL device being characterized in that the emitting layer is prepared by forming a film under a condition substantially free from oxygen gas and/or moisture and subjecting the film to a heat treatment at a temperature of 200.degree. C. to 700.degree. C. so that the host material of the emitting layer contains atoms of a rare-earth element (RE) and fluorine atoms (F) in an adjusted atom ratio (F/RE) in the range of 0.5 to 2.5.The present invention affords a thin film EL device which emits, for example, a green luminescence with a high brightness.

    摘要翻译: 本发明提供了一种薄膜EL器件,其包括电极层,发光层和形成在衬底上的电极层,以及介于三层之间的绝缘层,所述发射层含有稀土元素的原子 和氟原子在其主体材料中,氟原子(F)与稀土原子(RE)的原子比(F / RE)被调整到0.5至2.5的范围,以及制造EL器件的方法 其特征在于,通过在基本上不含氧气和/或水分的条件下形成膜并在200℃至700℃的温度下对膜进行热处理来制备发光层,使得主体 发光层的材料在0.5〜2.5的范围内含有稀土元素(RE)的原子和调整原子比(F / RE)的氟原子(F)。 本发明提供了例如以高亮度发出绿色发光的薄膜EL器件。

    Thin film electroluminescence device
    4.
    发明授权
    Thin film electroluminescence device 失效
    薄膜电致发光器件

    公开(公告)号:US4717858A

    公开(公告)日:1988-01-05

    申请号:US819217

    申请日:1986-01-15

    摘要: A thin film electroluminescence device comprising an electrode layer, an emitting layer and an electrode layer formed on a substrate one over another, and an insulating layer optionally interposed between the three layers, the emitting layer being made of CaS serving as a host material and doped with Eu.sup.2+ providing luminescent centers.The emitting layer comprising a novel combination of host material and luminescent center produces a red electroluminescence with a high brightness.

    摘要翻译: 一种薄膜电致发光器件,包括电极层,发光层和形成在基板上的电极层,以及可选地插入在三层之间的绝缘层,发光层由作为主体材料的CaS制成,掺杂 Eu2 +提供发光中心。 包含主体材料和发光中心的新型组合的发光层产生具有高亮度的红色电致发光。