Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT AND PRODUCTION METHOD FOR ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/157495
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an organic electroluminescence element having a high light-emission efficiency and a long life, and a production method therefor, and in particular, providing a white light-emitting organic electroluminescence element having excellent color rendering properties and stable chromaticity even during low drive voltage, and a production method therefor. This organic electroluminescence element has at least a positive electrode, a hole transport layer, a light-emitting layer containing a phosphorescent light-emitting compound, an electron transport layer, and a negative electrode, and is characterized by the light-emitting layer containing: a quantum dot having light-emission wavelength within the range of 413-477 nm; and a host compound having a light-emission wavelength, belonging to a 0-0 transition band in a phosphorescence spectrum, within the range of 413-459 nm.
Inventors:
OKUBO YASUSHI (JP)
TAKA HIDEO (JP)
HATTORI TAKAMUNE (JP)
IKEMIZU DAI (JP)
IIJIMA TAKAYUKI (JP)
TAKA HIDEO (JP)
HATTORI TAKAMUNE (JP)
IKEMIZU DAI (JP)
IIJIMA TAKAYUKI (JP)
Application Number:
PCT/JP2013/061055
Publication Date:
October 24, 2013
Filing Date:
April 12, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H01L51/50; B82Y20/00; C07D209/86; C07D213/38; C07D401/14; C07D405/04; C07D405/14; C07D409/14; C07D471/04; C07D471/06; C07D471/14; C07D487/04; C07D487/06; C07D487/14; C07D491/048; C07D493/04; C09K11/06; C09K11/56; C09K11/88; H05B33/10; H05B33/14; C07D498/06; C07D519/00
Domestic Patent References:
| WO2011076326A1 | 2011-06-30 | |||
| WO2009041594A1 | 2009-04-02 | |||
| WO2009041595A1 | 2009-04-02 |
Foreign References:
| JP2011256106A | 2011-12-22 | |||
| JP2006190682A | 2006-07-20 | |||
| JP2008300270A | 2008-12-11 | |||
| JP2011238590A | 2011-11-24 | |||
| JP2005038634A | 2005-02-10 |
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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