Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE, ILLUMINATION DEVICE, FLUORESCENT LIGHT-EMITTING COMPOUND, AND LIGHT-EMITTING THIN FILM
Document Type and Number:
WIPO Patent Application WO/2016/017741
Kind Code:
A1
Abstract:
The problem addressed by the present invention is to provide an organic electroluminescence element that has high fluorescence quantum yield, and also to provide a fluorescent light-emitting compound used in the organic electroluminescence element, a light-emitting thin film containing the fluorescent light-emitting compound, and a display device and an illumination device equipped with the organic electroluminescence element or the light-emitting thin film. The organic electroluminescence element has an organic layer that includes at least one light-emitting layer between a cathode and an anode. The organic electroluminescence element is characterized in that the at least one light-emitting layer has a specified structure and contains a π conjugated compound for which the absolute value (ΔEst) of the energy difference between the minimum excited singlet state and the minimum excited triplet state is 0.5 eV or lower.
Inventors:
SUGAWARA RYUTARO (JP)
MIYATA YASUO (JP)
MIYATA YASUO (JP)
Application Number:
PCT/JP2015/071618
Publication Date:
February 04, 2016
Filing Date:
July 30, 2015
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H01L51/50; C07D405/14; C07D409/14; C07D413/14; C07D519/00; C07F5/02; C07F7/10; C07F9/6568; C09K11/06
Domestic Patent References:
| WO2006114966A1 | 2006-11-02 |
Foreign References:
| JP2013016717A | 2013-01-24 | |||
| JP2013020996A | 2013-01-31 | |||
| JP2013110262A | 2013-06-06 | |||
| JP2013149812A | 2013-08-01 | |||
| CN101775010A | 2010-07-14 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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