Patent ID: 8106391
Filing Date: 2012-01-31
Classification: C09B,H01L

Abstract:
1. An organic EL device, comprising: an anode; a cathode; and an organic thin-film layer interposed between the anode and the cathode, wherein the organic thin-film layer comprises: an emitting layer containing a host material and a phosphorescent material; and a hole transporting layer that is provided adjacent to the anode relative to the emitting layer, wherein the hole transporting layer comprises a first hole transporting layer and a second hole transporting layer that are sequentially layered on the anode, the first hole transporting layer containing an amino compound substituted by an aromatic substituent represented by a formula (1) below and the second hole transporting layer containing at least one of compounds represented by formulae (2) to (5) below, where: Ar Ar R where: Ar Ar L R X