Patent ID: 9590188
Date: 2017-03-07
CPC Classifications: C07D,C09K,H01L,H05B

Claim:
1. An organic electroluminescent element comprising a substrate having thereon at least an anode and a cathode, and a light emitting layer between the aforesaid anode and the aforesaid cathode, wherein at least one light emitting layer incorporates a compound represented by Formula (A): wherein A1 and A2 each represents a hydrogen atom or a substituent, provided that at least one of A1 and A2 is a substituent, the substituent being a nitrogen atom-containing aromatic heterocyclic group, and the nitrogen atom-containing aromatic heterocyclic group being bonded to L1 or L2 through a nitrogen atom; X and Y each represents N—R (where R represents a hydrogen atom or a substituent); L1 and L2, each represents a divalent linking group, and L3 represents an arylene group; n represents an integer of 1 or 2; n1 and n2 each represents an integer 1 or 2; and n3 and n4 each represents an integer of 0 or 1, provided that the following condition is satisfied, n1+n2≧2.