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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, LIGHTING DEVICE AND ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/104325
Kind Code:
A1
Abstract:
Provided is an organic EL element which has a low light emission ratio of a component that has a wavelength longer than the emission peak wavelength, high luminous efficiency, low driving voltage, long emission life and excellent long-term stability, while being suppressed in voltage increase during the driving. This organic EL element comprises organic layers that are sandwiched between a positive electrode and a negative electrode; and at least one of the organic layers contains a compound that has a structure represented by general formula (1). (In general formula (1), R represents an alkyl group, a halogen atom, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an acyl group, a sulfinyl group, a sulfonyl group, a nitro group, a cyano group, a hydroxy group or a mercapto group; Ar represents an aromatic hydrocarbon group or an aromatic heterocyclic group; X1-L1-X2 represents a bidentate ligand; and two adjacent moieties among R1-R4 moieties represent groups represented by one of general formulae (2)-(4).) (In general formulae (2)-(4), each of Y1-Y4 moieties represents O, S or N-R'; each of Y5 and Y6 moieties represents CR'' or N; and each of Z1-Z8 moieties represents C-Rx or N.) AA General formula

Inventors:
KABASAWA, Mayuka (INC. 2-7-2, Marunouchi, Chiyoda-k, Tokyo 15, 〒1007015, JP)
YASUKAWA, Noriko (INC. 2-7-2, Marunouchi, Chiyoda-k, Tokyo 15, 〒1007015, JP)
OTSU, Shinya (INC. 2-7-2, Marunouchi, Chiyoda-k, Tokyo 15, 〒1007015, JP)
Application Number:
JP2016/083530
Publication Date:
June 22, 2017
Filing Date:
November 11, 2016
Export Citation:
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Assignee:
KONICA MINOLTA, INC. (2-7-2, Marunouchi Chiyoda-k, Tokyo 15, 〒1007015, JP)
International Classes:
H01L51/50; C07F15/00; C09K11/06; G09F9/30; H01L27/32
Domestic Patent References:
WO2013027633A12013-02-28
WO2015087739A12015-06-18
WO2015087795A12015-06-18
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (17F, Tokyo Takarazuka Bldg. 1-1-3, Yurakucho, Chiyoda-k, Tokyo 06, 〒1000006, JP)
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