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Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/031520
Kind Code:
A1
Abstract:
An organic electroluminescence element having at least a light-emitting layer between a positive electrode and a negative electrode, wherein the light-emitting layer contains a phosphorescent light-emitting organic metal complex and at least one host compound, the difference between the relative permittivity of the host compound and the relative permittivity of the phosphorescent light-emitting organic metal complex is between 0 and -0.5, and the dipole moment difference between the host compound and the phosphorescent light-emitting organic metal complex is between 0 and -5.5 debye.

Inventors:
INOUE SATORU (JP)
ITO HIROTO (JP)
Application Number:
PCT/JP2012/070466
Publication Date:
March 07, 2013
Filing Date:
August 10, 2012
Export Citation:
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Assignee:
KONICA MINOLTA HOLDINGS INC (JP)
INOUE SATORU (JP)
ITO HIROTO (JP)
International Classes:
H01L51/50; C07D209/82; C07D213/16; C07D233/58; C07D405/14; C07D409/14; C07F15/00; C09K11/06
Domestic Patent References:
WO2011004639A12011-01-13
WO2007020718A12007-02-22
Foreign References:
JP2007012984A2007-01-18
US20110204333A12011-08-25
US20070088167A12007-04-19
US20110057559A12011-03-10
US20110233528A12011-09-29
Other References:
See also references of EP 2752901A4
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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Claims: