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Title:
COMPOUND HAVING AZACARBAZOLE STRUCTURE, AND ORGANIC ELECTROLUMINESCENCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/181370
Kind Code:
A1
Abstract:
[Problem] To provide: a host compound for a light-emitting layer, wherein the compound is a material for a highly efficient organic electroluminescence device, has a high excited triplet level, is capable of completely confining triplet excitons of phosphorescent and thermally activated delayed fluorescence (TADF) emitters, and has excellent thin film stability, i.e., has a high glass transition point (Tg); and a highly efficient and highly luminescent organic electroluminescence device using the compound. [Solution] The present invention provides an organic electroluminescence device which has a pair of electrodes and at least one organic layer sandwiched therebetween, the organic electroluminescence device being characterized in that the organic layer is a light-emitting layer, and a compound having an azacarbazole structure represented by general formula (1) is used as a material constituting the light-emitting layer.

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Inventors:
ADACHI CHIHAYA (JP)
UEHARA TAKUYA (JP)
Application Number:
PCT/JP2018/012526
Publication Date:
October 04, 2018
Filing Date:
March 27, 2018
Export Citation:
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Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
UNIV KYUSHU NAT UNIV CORP (JP)
International Classes:
C07D471/04; C09K11/06; H01L51/50
Domestic Patent References:
WO2011016202A12011-02-10
WO2004053019A12004-06-24
WO2004095891A12004-11-04
WO2015175678A12015-11-19
Foreign References:
KR20160076882A2016-07-01
JP2015010092A2015-01-19
JP2014103243A2014-06-05
JP2006120763A2006-05-11
JP2014511861A2014-05-19
US20160149157A12016-05-26
KR20140079306A2014-06-26
JP2006080271A2006-03-23
JP2016516085A2016-06-02
Attorney, Agent or Firm:
SHIMIZU, Yoshihiro (JP)
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