Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2011/049063
Kind Code:
A1
Abstract:
Disclosed is an organic electroluminescent element (organic EL element) which has a simple configuration and improved luminous efficiency, while securing sufficient driving stability. The organic EL device comprises organic layers which include a hole transport layer and a light-emitting layer and are held between an anode and a cathode. The light-emitting layer contains a fluorescent material, and an electron and/or exciton blocking layer that contains an indolocarbazole derivative represented by general formula (2) is arranged adjacent to the light-emitting layer between the hole transport layer and the light-emitting layer. In general formula (2), ring B is a heterocyclic ring that is represented by formula (1c) and fused to an adjacent ring; Z represents an n-valent aromatic hydrocarbon group or aromatic heterocyclic group; and n represents 1 or 2.
Inventors:
KAI TAKAHIRO (JP)
YAMAMOTO TOSHIHIRO (JP)
KOMORI MASAKI (JP)
YOSHIMURA KAZUAKI (JP)
TSUJI TAISHI (JP)
TAKAHASHI YASUHIRO (JP)
YUKI TOSHINAO (JP)
NAKAJIMA YUSUKE (JP)
YAMAMOTO TOSHIHIRO (JP)
KOMORI MASAKI (JP)
YOSHIMURA KAZUAKI (JP)
TSUJI TAISHI (JP)
TAKAHASHI YASUHIRO (JP)
YUKI TOSHINAO (JP)
NAKAJIMA YUSUKE (JP)
Application Number:
PCT/JP2010/068322
Publication Date:
April 28, 2011
Filing Date:
October 19, 2010
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL CO (JP)
PIONEER CORP (JP)
PIONEER TOHOKU CORP (JP)
KAI TAKAHIRO (JP)
YAMAMOTO TOSHIHIRO (JP)
KOMORI MASAKI (JP)
YOSHIMURA KAZUAKI (JP)
TSUJI TAISHI (JP)
TAKAHASHI YASUHIRO (JP)
YUKI TOSHINAO (JP)
NAKAJIMA YUSUKE (JP)
PIONEER CORP (JP)
PIONEER TOHOKU CORP (JP)
KAI TAKAHIRO (JP)
YAMAMOTO TOSHIHIRO (JP)
KOMORI MASAKI (JP)
YOSHIMURA KAZUAKI (JP)
TSUJI TAISHI (JP)
TAKAHASHI YASUHIRO (JP)
YUKI TOSHINAO (JP)
NAKAJIMA YUSUKE (JP)
International Classes:
H01L51/50; C07D487/04
Domestic Patent References:
| WO2009104563A1 | 2009-08-27 | |||
| WO2010113761A1 | 2010-10-07 |
Foreign References:
| JPH11176578A | 1999-07-02 | |||
| JPH11162650A | 1999-06-18 | |||
| JPH07157473A | 1995-06-20 | |||
| JP2005129310A | 2005-05-19 | |||
| JP2007043062A | 2007-02-15 | |||
| JP2003261560A | 2003-09-19 | |||
| JP2005285410A | 2005-10-13 | |||
| JP2003229275A | 2003-08-15 | |||
| JPH07157473A | 1995-06-20 | |||
| JPS6462650A | 1989-03-09 | |||
| JPS6476578A | 1989-03-22 |
Other References:
APPLIED PHYSICS LETTERS, vol. 83, 2003, pages 3818
APPLIED PHYSICS LETTERS, vol. 93, 2008, pages 143307
SYNLETT., vol. 1, 2005, pages 42 - 48
THE JOURNAL OF ORGANIC CHEMISTRY, vol. 72, no. 15, 2007, pages 5886
TETRAHEDRON, vol. 55, 1999, pages 2371
ARCHIV DER PHARMAZIE (WEINHEIM, GERMANY, vol. 320, no. 3, 1987, pages 280 - 282
See also references of EP 2492987A4
APPLIED PHYSICS LETTERS, vol. 93, 2008, pages 143307
SYNLETT., vol. 1, 2005, pages 42 - 48
THE JOURNAL OF ORGANIC CHEMISTRY, vol. 72, no. 15, 2007, pages 5886
TETRAHEDRON, vol. 55, 1999, pages 2371
ARCHIV DER PHARMAZIE (WEINHEIM, GERMANY, vol. 320, no. 3, 1987, pages 280 - 282
See also references of EP 2492987A4
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
Kazuya Sasaki (JP)
Kazuya Sasaki (JP)
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