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2. 发明公开

EP2439806A1 OLED with improved light outcoupling 有权
标题翻译： OLED MIT VERBESSERTER LICHTAUSKOPPLUNG
公开(公告)号：EP2439806A1
公开(公告)日：2012-04-11
申请号：EP12000004.7
申请日：2008-03-31
申请人： The Regents of the University of Michigan
发明人： Forrest, Stephen R. , Sun, Yiru
IPC分类号： H01L51/52
CPC分类号： H01L51/5275
摘要： An OLED may include regions of a material having a refractive index less than that of the substrate, or of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. Methods for fabricating such a transparent or top-emitting OLED is also provided.
摘要翻译： OLED可以包括具有小于衬底或有机区域的折射率的材料的区域，从而允许波导模式中的发射光被提取到空气中。这些区域可以在与电极平行的方向上与OLED的发射区域相邻放置。衬底也可以被赋予非标准形状，以进一步改善波导模式和/或玻璃模式光到空气模式的转换。这种器件的输出耦合效率可高达标准OLED的效率的两到三倍。还提供了制造这种透明或顶部发光OLED的方法。

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