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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/137001
Kind Code:
A1
Abstract:
An organic electroluminescent element (EL element), in which an indolocarbazole compound is used, is provided. The organic EL element has an anode, a plurality of organic layers, each including a phosphorescent light-emitting layer, and a cathode laminated on a substrate. An indolocarbazole compound represented by general formula (1) is contained in the phosphorescent light-emitting layers, a hole transport layer, an electron transport layer, and a hole-blocking layer or an electron-blocking layer. In general formula (1): ring I and ring II are fused to an adjacent ring, and are represented by formula (1a) and formula (1b); and A represents C-R or N, with at least one A being N. L represents a substituted or unsubstituted aromatic hydrocarbon group or aromatic heterocyclic group, with at least one L being a two- to four-ring condensed heterocyclic group. R represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group, or an aromatic heterocyclic group. P represents an integer from 0 to 4, q represents an integer from 0 to 2, and r represents an integer from 1 to 4. X1 to X4 each represent an aromatic hydrocarbon group or an aromatic heterocyclic group, while l, m and n each represent an integer from 0 to 5.

Inventors:
SANNOMIYA RUMI (JP)
KAI TAKAHIRO (JP)
KOMORI MASAKI (JP)
YAMAMOTO TOSHIHIRO (JP)
Application Number:
PCT/JP2013/055368
Publication Date:
September 19, 2013
Filing Date:
February 28, 2013
Export Citation:
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Assignee:
NIPPON STEEL & SUMIKIN CHEM CO (JP)
International Classes:
H01L51/50; C09K11/06; C07D487/04
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See also references of EP 2827397A4
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
Kazuya Sasaki (JP)
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