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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/013575
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a material for an organic electroluminescent element, the material having outstanding positive hole injection/transport performance, electron blocking ability, as well as stability and durability in the form of a thin film; and also providing an organic electroluminescent element which has high efficiency, low drive voltage, and a long lifespan by combining the aforementioned material and various materials for an organic EL element, the various materials having outstanding positive hole injection/transport performance, electron blocking ability, as well as stability and durability in the form of a thin film, in a manner in which the characteristics of the respective materials can be exhibited effectively.　Focusing on the fact that a triarylamine compound having a specific structure has outstanding positive hole injection/transport performance as well as stability and durability in the form of a thin film, an organic electroluminescent element was produced by selecting a specific arylamine compound as a material constituting a second positive hole transport layer, and the present invention was achieved.

Inventors:
IZUMIDA JUNICHI (JP)
KO SANG-WON (JP)
LEE BONG-HYANG (JP)
RYU JUNG-HO (JP)
LEE JIN-HO (JP)
KASE KOUKI (JP)
HAYASHI SHUICHI (JP)
LEE SE-JIN (KR)
YU TAE-JUNG (KR)
CHOI YOUNG-TAE (KR)
JOO SUNG-HOON (KR)
YANG BYUNG-SUN (KR)
KIM JI-HWAN (KR)
SHIN BONG-KI (KR)
Application Number:
PCT/JP2022/029469
Publication Date:
February 09, 2023
Filing Date:
August 01, 2022
Export Citation:
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Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
SFC CO LTD (KR)
International Classes:
C09K11/06
Domestic Patent References:
WO2021149773A12021-07-29
WO2021256515A12021-12-23
WO2014009310A12014-01-16
Foreign References:
US20190140177A12019-05-09
US5792557A1998-08-11
US5639914A1997-06-17
US7799492B22010-09-21
US8021764B22011-09-20
US8394510B22013-03-12
US10818844B22020-10-27
US20190140177A12019-05-09
Other References:
PROCEEDINGS OF THE 9TH MEETING OF THE JAPAN SOCIETY OF APPLIED PHYSICS, 2001, pages 23 - 31
APPL. PHYS. LET., vol. 98, 2011, pages 083302
PROCEEDINGS OF THE 3RD MEETING OF THE JAPAN OLED FORUM, 2006, pages 13 - 14
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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