Title:
ORGANIC ELECTROLUMINESCENT ELEMENT AND COMPOSITION FOR ORGANIC MATERIALS
Document Type and Number:
WIPO Patent Application WO/2018/097156
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an organic electroluminescent element which is capable of emitting light with high luminous efficiency, while having a long service life; and a composition for organic materials. An organic electroluminescent element according to the present invention comprises a positive electrode, a negative electrode and one or more organic functional layers arranged between the positive electrode and the negative electrode, and is characterized in that: the organic functional layers contain a phosphorescent metal complex and a fluorescent compound; the phosphorescent metal complex is a compound having a structure that is represented by a specific general formula; and the phosphorescent metal complex is a core-shell type dopant that satisfies a specific formula.
Inventors:
NAKAMURA YUTA (JP)
INOUE SATORU (JP)
NAMIKAWA TAKETO (JP)
MIYATA YASUO (JP)
TABATA KENICHI (JP)
II HIROMOTO (JP)
INOUE SATORU (JP)
NAMIKAWA TAKETO (JP)
MIYATA YASUO (JP)
TABATA KENICHI (JP)
II HIROMOTO (JP)
Application Number:
PCT/JP2017/041923
Publication Date:
May 31, 2018
Filing Date:
November 22, 2017
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H01L51/50; C07F5/02; C07F15/00; C09K11/06
Domestic Patent References:
| WO2013150593A1 | 2013-10-10 | |||
| WO2013108787A1 | 2013-07-25 | |||
| WO2009008349A1 | 2009-01-15 | |||
| WO2017119203A1 | 2017-07-13 |
Foreign References:
| JP2015035600A | 2015-02-19 | |||
| JP2017502516A | 2017-01-19 |
Other References:
SU , Z. ET AL.: "Improved efficiency and colour purity of blue electrophosphorescent devices by cooping a fluorescent emitter", JOURNAL OF PHYSIC D: APPLIED PHYSICS, vol. 41, no. 12, 21 June 2008 (2008-06-21), XP020133358
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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