申请人:Yamagata Promotional Organization for
Industrial Technology
公开号:EP2075305A2
公开(公告)日:2009-07-01
An organic EL element having one or a plurality of organic layers including a light emitting layer between a pair of electrodes is arranged such that at least one layer of the above-mentioned organic layers contains a compound as expressed by the following general formula (1) independently or as a mixture.
(where, R1-R4 are selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, and an aryloxy group, and they may be the same groups or the groups different from one another, and A1-A4 are selected from the group consisting of a phenyl group which is either substituted or unsubstituted and a 5 or 6 member heterocyclic ring group which is either substituted or unsubstituted, and they may be the same groups or the groups different from one another.)
有机电致发光元件具有一个或多个有机层,其中包括位于一对电极之间的发光层,其布置方式为上述有机层中至少有一层单独或作为混合物含有下式(1)表示的化合物。
(其中,R1-R4选自由氢、烷基、环烷基、烷氧基、环烷氧基和芳氧基组成的组,它们可以是相同的基团,也可以是彼此不同的基团;A1-A4选自由取代或未取代的苯基和取代或未取代的5或6个杂环组成的组,它们可以是相同的基团,也可以是彼此不同的基团)。