ORGANIC ELECTROLUMINESCENT DEVICE

摘要

Disclosed is an organic electroluminescent device comprising a light-emitting layer arranged between an anode and a cathode, and a layer (L) arranged between the light-emitting layer and the anode and containing a polymer compound having a repeating unit represented by the following formula (1). (In the above formula, Ar1, Ar2, Ar3 and Ar4 independently represent an arylene group or a divalent heterocyclic group; E1, E2 and E3 independently represent an aryl group (A) or heterocyclic group (B) specified below; and a and b independently represent 0 or 1 while satisfying 0 <= a + b <= 1. Aryl group (A): an aryl group having three or more substituents selected from alkyl groups, alkoxy groups or the like. Heterocyclic group (B): a monovalent heterocyclic group having one or more substituents selected from alkyl groups, alkoxy groups or the like wherein the sum of the number of substituents and the number of heteroatoms is not less than 3.)