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1. 发明授权

US09373818B2 Organic electroluminescent element 有权
标题翻译：有机电致发光元件
公开(公告)号：US09373818B2
公开(公告)日：2016-06-21
申请号：US13897652
申请日：2013-05-20
申请人： UDC IRELAND LIMITED
发明人： Manabu Tobise , Yuichiro Itai , Kana Morohashi , Shin'ichiro Sonoda , Jingbo Li
IPC分类号： H01L51/52
CPC分类号： H01L51/5268 , H01L51/5206 , H01L51/5212 , H01L51/5215 , H01L51/5234 , H01L51/5275 , H01L2251/5369
摘要： It is an object of the present invention to provide an organic electroluminescent element with which no light extraction layer needs to be produced separately, which has a transparent electrode that is advantageous in terms of cost and can be formed by a simple film formation process, and which is excellent from the standpoint of light extraction efficiency. The present invention provides an organic electroluminescent element in which a substrate, a first electrode adjacent to this substrate, an organic layer including at least one organic light-emitting layer, and a second electrode adjacent to this organic layer are formed in this order, with this organic electroluminescent element being such that at least one of the aforementioned electrodes is a transparent electrode which is transparent, which contains at least one type of light scattering particles that are transparent and that have a primary particle size of at least 0.5 μm, and which is composed of the aforementioned light scattering particles and a component having a refractive index equal to or higher than the refractive index of the aforementioned organic light-emitting layer.
摘要翻译：本发明的目的是提供一种不需要单独制造光提取层的有机电致发光元件，其具有在成本方面有利且可以通过简单的成膜工艺形成的透明电极，以及从光提取效率的观点来看是非常好的。本发明提供一种有机电致发光元件，其中依次形成基板，与该基板相邻的第一电极，包含至少一个有机发光层的有机层和与该有机层相邻的第二电极，该有机电致发光元件使得至少一个上述电极是透明的透明电极，其包含透明的并且具有至少0.5μm的初级粒径的至少一种类型的光散射粒子，并且其中由上述光散射粒子和折射率等于或高于上述有机发光层的折射率的成分构成。

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