Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/008501
Kind Code:
A1
Abstract:
Provided are: an organic EL element achieving low voltage, high efficiency, and long lifetime properties; and a host material used therefor. The present invention provides an organic-EL-element host material consisting of a compound represented by general formula (1) or a structural isomer thereof. Here, X is N or C-H, and at least one X is N. L is an independent aromatic hydrocarbon group, and each of R2-R6 is a hydrogen, an aliphatic hydrocarbon group, an aromatic hydrocarbon group, an aromatic heterocyclic group, or a linked aromatic group in which 2 to 5 of said aromatic rings are linked; however, R2 and at least one more R are not hydrogen.
Inventors:
HAYASHI KENTARO (JP)
SAGARA YUTA (JP)
OGAWA JUNYA (JP)
IKENAGA YUJI (JP)
INOUE MUNETOMO (JP)
UKIGAI SATOSHI (JP)
KITERA SAYURI (JP)
YAMASHITA TETSURO (JP)
OKUYAMA MASATAKA (JP)
SAKAI MITSURU (JP)
SAGARA YUTA (JP)
OGAWA JUNYA (JP)
IKENAGA YUJI (JP)
INOUE MUNETOMO (JP)
UKIGAI SATOSHI (JP)
KITERA SAYURI (JP)
YAMASHITA TETSURO (JP)
OKUYAMA MASATAKA (JP)
SAKAI MITSURU (JP)
Application Number:
PCT/JP2022/029026
Publication Date:
February 02, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
C07D487/04; H05B33/10
Domestic Patent References:
| WO2016194604A1 | 2016-12-08 | |||
| WO2022146011A1 | 2022-07-07 |
Foreign References:
| KR102193015B1 | 2020-12-18 | |||
| CN113024566A | 2021-06-25 | |||
| US20170062718A1 | 2017-03-02 | |||
| CN110776513A | 2020-02-11 | |||
| US20170141323A1 | 2017-05-18 | |||
| US20150236262A1 | 2015-08-20 | |||
| US20220140257A1 | 2022-05-05 |
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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