申请人:Toray Industries, Inc.
公开号:EP3716348A1
公开(公告)日:2020-09-30
The present invention provides an organic light-emitting element, comprising a substrate, a first electrode, more than one organic layer film comprising a light-emitting layer, and a second electrode. The light-emitting element further comprises a cover layer. The cover layer is located on the second electrode, and comprises a high refractive layer and a low refractive layer. A material for the low refractive layer of the cover layer is a boron complex organic small molecular compound. The organic light-emitting element provided by the present invention can achieve high light-emitting efficiency and color reproducibility. The organic light-emitting element of the present invention can be used for an organic EL display, a backlight source of a liquid crystal display, illumination, a sign board, an identification lamp, etc.
本发明提供了一种有机发光元件,包括基板、第一电极、由发光层组成的一个以上的有机层薄膜和第二电极。该发光元件还包括一个覆盖层。覆盖层位于第二电极上,由高折射层和低折射层组成。覆盖层低折射层的材料为硼复合有机小分子化合物。本发明提供的有机发光元件可实现高发光效率和色彩再现性。本发明的有机发光元件可用于有机 EL 显示器、液晶显示器的背光源、照明、标志牌、识别灯等。