Title:
HIGH MOLECULAR WEIGHT TRIARYLAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/167253
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a high molecular weight material that exhibits excellent hole injection and transport performance and has electron blocking capabilities, and that has high stability when in the form of a thin film. Another purpose of the present invention is to provide an organic EL element that comprises an organic layer (a thin film) formed from the aforesaid high molecular weight material and has high luminous efficiency and a long service life. The present invention focused on a high molecular weight triarylamine compound, which contains, in the molecular main chain, a triarylamine structural unit containing a diphenylnaphthalene structure and a diphenylnaphthalene structural unit, and found a high molecular weight compound with a novel structure that has a wide gap in addition to hole injection and transport capabilities.
Inventors:
SAEGUSA YUTA (JP)
TOGASHI KAZUNORI (JP)
KITAHARA HIDEYOSHI (JP)
SHINODA MIKA (JP)
YOSHIZAWA YUKA (JP)
TOGASHI KAZUNORI (JP)
KITAHARA HIDEYOSHI (JP)
SHINODA MIKA (JP)
YOSHIZAWA YUKA (JP)
Application Number:
PCT/JP2023/007667
Publication Date:
September 07, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
International Classes:
C08G61/12; H10K50/00; H10K50/15
Domestic Patent References:
| WO2021166921A1 | 2021-08-26 | |||
| WO2021070878A1 | 2021-04-15 | |||
| WO2021040328A1 | 2021-03-04 | |||
| WO2020246404A1 | 2020-12-10 | |||
| WO2020127176A1 | 2020-06-25 | |||
| WO2020009069A1 | 2020-01-09 | |||
| WO2018168667A1 | 2018-09-20 | |||
| WO2018101331A1 | 2018-06-07 | |||
| WO2017086357A1 | 2017-05-26 |
Foreign References:
| JP2009043896A | 2009-02-26 | |||
| JP2021517923A | 2021-07-29 | |||
| JP2010062442A | 2010-03-18 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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