MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT EMPLOYING THE SAME
申请人:Iwakuma Toshihiro
公开号:US20090030202A1
公开(公告)日:2009-01-29
A material for organic electroluminescence devices for use as a host material in combination with at least one phosphorescent metal complex, which comprises a compound having a specific heterocyclic structure, is described. Also described is an organic electroluminescence device having an anode, a cathode and an organic thin film layer having one or more layers. The organic thin film layer is interposed between the anode and cathode and has a light emitting layer containing a host material in combination with at least one phosphorescent metal complex. At least one layer of the organic thin film layer contains the material for organic electroluminescence devices. The material for organic electroluminescence devices provides an organic electroluminescence device which has a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and show a long lifetime.
本文描述了一种用于有机电致发光器件的材料,可与至少一种磷光金属配合使用作为主体材料,其包含具有特定杂环结构的化合物。还描述了一种有机电致发光器件,其具有阳极、阴极和具有一个或多个层的有机薄膜层。有机薄膜层位于阳极和阴极之间,并具有包含主体材料与至少一种磷光金属配合的发光层。有机薄膜层的至少一层含有用于有机电致发光器件的材料。该材料为有机电致发光器件提供了高发光效率,几乎不会产生像素缺陷,具有优异的耐热性,并展现长寿命。