Title:
An organic electroluminescence element
Document Type and Number:
Japanese Patent JP6140146
Kind Code:
B2
Abstract:
Provided is an organic electroluminescent device (EL device) using an indolocarbazole compound. The organic EL device is obtained by laminating an anode, a plurality of organic layers including a phosphorescent light-emitting layer, and a cathode on a substrate, and the phosphorescent light-emitting layer, a hole-transporting layer, an electron-transporting layer, a hole-blocking layer, or an electron-blocking layer contains an indolocarbazole compound represented by the general formula (1). In the general formula (1), a ring I and a ring II represent rings represented by the formula (1a) and the formula (1b) to be fused to adjacent rings, As each represent C-R or N and at least one of As represents N, Ls each represent a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted aromatic heterocyclic group, and at least one of Ls represents a two- to four-ring fused heterocyclic group, Rs each represent an aliphatic hydrocarbon group, an aromatic hydrocarbon group, or an aromatic heterocyclic group, ps each represent an integer of from 0 to 4, q represents an integer of from 0 to 2, r represents an integer of from 1 to 4, X 1 to X 4 each represent an aromatic hydrocarbon group or an aromatic heterocyclic group, and l, m, and n each represent an integer of from 0 to 5.
Inventors:
Rumi Sannomiya
Takahiro Kai
Masaki Komori
Toshihiro Yamamoto
Takahiro Kai
Masaki Komori
Toshihiro Yamamoto
Application Number:
JP2014504784A
Publication Date:
May 31, 2017
Filing Date:
February 28, 2013
Export Citation:
Assignee:
Nippon Steel & Sumikin Chemical Co., Ltd.
International Classes:
H01L51/50; C09K11/06
Foreign References:
| WO2011136755A1 | ||||
| WO2010113761A1 | ||||
| WO2010113726A1 | ||||
| WO2010113755A1 | ||||
| KR1020110111692A |
Attorney, Agent or Firm:
Kazuya Sasaki
Katsuo Naruse
Tomohiro Nakamura
Eiichi Sano
Katsuo Naruse
Tomohiro Nakamura
Eiichi Sano