Patent ID: 8367222
Filing Date: 2013-02-05
Classification: H01L

Abstract:
1. An organic electroluminescence device, comprising: (a) an anode; (b) a cathode; and (c) organic thin film layers provided between the anode and the cathode, wherein the organic thin film layers (c) comprise (c1) a light emitting layer, and (c2) a hole injecting layer and (c3) a hole transporting layer, or (c4) a hole injecting/transporting layer on a side which is closer to the anode (a) than the light emitting layer (c1) is, wherein the hole injecting layer (c2) or the hole injecting/transporting layer (c4) comprises an aromatic amine derivative (i) comprising a substituent of formula (1): wherein L R a is 1, 2, or 3, and, when a is 2 or 3, multiple R wherein the hole transporting layer (c3) or the hole injecting/transporting layer (c4) comprises an aromatic amine derivative (ii) comprising a substituent of formula (2): wherein X is NR L R R n is an integer of 1 to 7, wherein the aromatic amine derivative (i) does not comprise the substituent of formula (2) in its structure, and wherein the aromatic amine derivative (ii) does not comprise the substituent of formula (1) in its structure.