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Title:
ISOMER-MIXTURE METAL COMPLEX COMPOSITION, ORGANIC ELECTROLUMINESCENT ELEMENT, ILLUMINATOR, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/156922
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an isomer-mixture metal complex composition that includes a plurality of atropisomers which are closely akin to each other in physical property and energy level and of providing an organic EL element using the isomer-mixture metal complex composition as a material for the organic EL element, the EL element having improved stability over time of the organometallic complex film, including a luminescent layer reduced in resistivity change, and giving a luminescent spectrum reduced in change in half-value width. Also provided are an illuminator and a display device which are obtained using the organic EL element. This isomer-mixture metal complex composition is a metal complex composition which is a mixture of isomers each comprising a metal atom and a plurality of ligands, and is characterized by containing a plurality of atropisomers because at least one of the ligands has an aromatic ring as a substituent and the free rotation of the axis of the bonding between the aromatic ring and the ligand is inhibited by the formation of a complex of the metal atom with other ligand(s).

Inventors:
SUGINO, Motoaki (INC. 2-7-2, Marunouchi, Chiyoda-k, Tokyo 15, 〒1007015, JP)
KITA, Hiroshi (INC. 2-7-2, Marunouchi, Chiyoda-k, Tokyo 15, 〒1007015, JP)
Application Number:
JP2014/057676
Publication Date:
October 02, 2014
Filing Date:
March 20, 2014
Export Citation:
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Assignee:
KONICA MINOLTA, INC. (2-7-2, Marunouchi Chiyoda-k, Tokyo 15, 〒1007015, JP)
International Classes:
C07F15/00; C09K11/06; H01L51/50
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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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