A thin film electroluminescent (EL) device and method of manufacturing the same
    10.
    发明公开
    A thin film electroluminescent (EL) device and method of manufacturing the same 失效
    Dünnschicht-Elektrolumineszentenvorrichtung und Verfahren zur Herstellung derselben。

    公开(公告)号:EP0421494A2

    公开(公告)日:1991-04-10

    申请号:EP90125792.3

    申请日:1987-01-07

    IPC分类号: H05B33/10 H05B33/14 H05B33/22

    摘要: A thin film electroluminescent (EL) device comprises a transparent electrode (32), a first insulating layer (34), a luminescent layer (35) and a back electrode (37), said luminescent layer consisting of column polycrystals formed by independently evaporating luminescent host material and an activator (Im) and then combining evaporated substances on a substrate. Electrons (E) in the luminescent layer are accelerated by an electric field applied from outside, efficiently collide against the activator (Im) without being intercepted by interfaces between crystalline particles. A further insulating layer (33) is interposed between said transparent electrode and said first insulating layer, said further insulating layer having a refractive index intermediate of those of said transparent electrode and said first insulating layer.
    The thin film EL device can be used for display, illumination, writing, reading out and erasure of signals of photo-recording medium.

    摘要翻译: 薄膜电致发光(EL)器件包括透明电极(32),第一绝缘层(34),发光层(35)和背面电极(37),所述发光层由柱状多晶体组成,所述多晶体通过独立地蒸发发光 主体材料和活化剂(Im),然后将蒸发的物质组合在基底上。 发光层中的电子(E)通过从外部施加的电场加速,有效地与活化剂(Im)碰撞,而不被结晶颗粒之间的界面截留。 在所述透明电极和所述第一绝缘层之间插入另外的绝缘层(33),所述另外的绝缘层的折射率与所述透明电极和所述第一绝缘层的折射率中间。 薄膜EL器件可以用于显示,照明,写入,读出和擦除光记录介质的信号。