Title:
COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAID COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/173022
Kind Code:
A1
Abstract:
The purpose of the present invention is to, in order to improve the light extraction efficiency of an organic EL element, provide a compound that has a low extinction coefficient and a high refractive index in a range of 450-750 nm in a capping layer. According to the present invention, an organic EL element having excellent emission efficiency is obtained by designing a molecule while focusing attention to the fact that compounds having a central benzene backbone provide excellent stability and durability to a thin film and that the refractive index can be improved through adjustment of the molecular structure thereof, and by using a compound represented by general formula (1) as a material for a capping layer.
Inventors:
CHIBA ERIKO (JP)
YAMAMOTO TAKESHI (JP)
KASE KOUKI (JP)
HIRAYAMA YUTA (JP)
HAYASHI SHUICHI (JP)
YAMAMOTO TAKESHI (JP)
KASE KOUKI (JP)
HIRAYAMA YUTA (JP)
HAYASHI SHUICHI (JP)
Application Number:
PCT/JP2022/005500
Publication Date:
August 18, 2022
Filing Date:
February 10, 2022
Export Citation:
Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
International Classes:
C07C15/24; C07C15/30; C07D215/12; C07D401/14; C07D405/14; C07D409/14; H01L51/50; H05B33/02; H05B33/26
Domestic Patent References:
| WO2014178532A1 | 2014-11-06 | |||
| WO2015178581A1 | 2015-11-26 |
Foreign References:
| JP2019512499A | 2019-05-16 | |||
| CN110143952A | 2019-08-20 | |||
| CN1362464A | 2002-08-07 | |||
| KR20130069237A | 2013-06-26 | |||
| KR20140139307A | 2014-12-05 | |||
| KR20150122343A | 2015-11-02 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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