申请人:TDK Corporation
公开号:EP1285957A2
公开(公告)日:2003-02-26
In an organic EL device comprising a cathode, an anode, and two or more stacked organic layers therebetween including a light emitting layer, an electron injecting organic layer containing an organic salt or complex of a metal having a standard electrode potential of more negative than -1.8 V at 25°C is formed close to the cathode by coating, and an organic layer containing a high molecular weight EL material is disposed close to the electron injecting organic layer. A multilayer structure of organic layers can be formed by coating, and the organic EL device has a high luminance, high efficiency, high reliability, long life and ease of handling.
在一种有机电致发光器件中,包括一个阴极、一个阳极和两个或多个叠层有机层(包括发光层),通过涂层在靠近阴极的地方形成一个电子注入有机层,该层含有一种金属的有机盐或络合物,其标准电极电位在25°C时负值大于-1.8V,并且在靠近电子注入有机层的地方布置了一个含有高分子量电致发光材料的有机层。通过涂层可以形成有机层的多层结构,有机 EL 器件具有高亮度、高效率、高可靠性、长寿命和易操作性。