Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/168991
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide an organic EL element in which various materials for an organic EL element, which excel in hole injection/transport performance, electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined so that properties of each material can be effectively demonstrated, thereby achieving (1) high luminous efficiency and power efficiency, (2) low luminescence starting voltage, (3) low practical driving voltage, and (4) particularly long service life. [Solution] The organic EL element has at least an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, and the hole transport layer includes an arylamine compound represented by general formula (1) below, and the electron transport layer includes a compound having a benzoazole ring structure represented by general formula (2) below.
Inventors:
KABASAWA NAOAKI (JP)
HAYASHI SHUICHI (JP)
SURUGA KAZUYUKI (JP)
MOCHIZUKI SHUNJI (JP)
HAYASHI SHUICHI (JP)
SURUGA KAZUYUKI (JP)
MOCHIZUKI SHUNJI (JP)
Application Number:
PCT/JP2018/010184
Publication Date:
September 20, 2018
Filing Date:
March 15, 2018
Export Citation:
Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
International Classes:
H01L51/50; C07D413/10; C09K11/06
Domestic Patent References:
| WO2016175211A1 | 2016-11-03 | |||
| WO2016125706A1 | 2016-08-11 | |||
| WO2008062636A1 | 2008-05-29 | |||
| WO2014009310A1 | 2014-01-16 |
Foreign References:
| JP2014143413A | 2014-08-07 | |||
| JP2016528177A | 2016-09-15 | |||
| JP2016540731A | 2016-12-28 | |||
| CN104835921A | 2015-08-12 | |||
| KR20150122343A | 2015-11-02 | |||
| CN105924438A | 2016-09-07 | |||
| KR20140094408A | 2014-07-30 | |||
| JPH0848656A | 1996-02-20 | |||
| JP3194657B2 | 2001-07-30 | |||
| JPS4943840B1 | 1974-11-25 | |||
| JP2006151979A | 2006-06-15 | |||
| JPH07126615A | 1995-05-16 | |||
| JP2005108804A | 2005-04-21 |
Other References:
"The Japan Society of Applied Physics", 9TH LECTURE PREPRINTS, 2001, pages 23 - 31
APPL. PHYS. LET., vol. 98, 2011, pages 083302
"Organic EL Symposium", THE 3RD REGULAR PRESENTATION PREPRINTS, 2006, pages 13 - 14
See also references of EP 3598516A4
APPL. PHYS. LET., vol. 98, 2011, pages 083302
"Organic EL Symposium", THE 3RD REGULAR PRESENTATION PREPRINTS, 2006, pages 13 - 14
See also references of EP 3598516A4
Attorney, Agent or Firm:
SHIMIZU, Yoshihiro (JP)
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