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Title:
ORGANIC ELECTROLUMINESCENT DEVICE, LIGHT-EMITTING THIN FILM, DISPLAY UNIT, AND ILLUMINATION UNIT
Document Type and Number:
WIPO Patent Application WO/2016/017760
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an organic EL device that exhibits high light-emission efficiency and superior stability in that the light-emission characteristics thereof do not considerably change over time. The present invention also addresses the problem of providing a light-emitting thin film and charge-transfer thin film containing a π-conjugated compound for use in the organic EL device, as well as a display unit and illumination unit including the organic EL device. The organic EL device includes an organic layer containing at least one light-emitting layer between an anode and a cathode thereof. Furthermore, the organic EL device is characterized in that, in at least one layer of the light-emitting layer, there is no overlap between the electron density distributions of HOMO and LUMO, an electron transition between the HOMO and LUMO occurs due to a through-space interaction within the same molecule, and a π-conjugated compound containing a π-conjugated aromatic ring is contained at a site where at least one of the HOMO and the LUMO is localized.

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Inventors:
OSHIYAMA TOMOHIRO (JP)
KITA HIROSHI (JP)
NAMIKAWA TAKETO (JP)
OKUYAMA MICHIHIRO (JP)
HATTORI TATSUYA (JP)
MIYATA YASUO (JP)
Application Number:
PCT/JP2015/071647
Publication Date:
February 04, 2016
Filing Date:
July 30, 2015
Export Citation:
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Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H01L51/50; C07D403/12; C07D403/14; C07D413/10; C07D487/04; C07D498/22; C09K11/06
Domestic Patent References:
WO2012035853A12012-03-22
WO2015014435A12015-02-05
Foreign References:
JP2012104638A2012-05-31
JP2009060089A2009-03-19
JP2010278287A2010-12-09
JP2014503502A2014-02-13
JP2015111624A2015-06-18
US20150171342A12015-06-18
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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