Invention Grant
- Patent Title: Organic electroluminescent element
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Application No.: US16617296Application Date: 2018-04-25
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Publication No.: US11647666B2Publication Date: 2023-05-09
- Inventor: Takuji Hatakeyama , Katsuya Masuda , Yuko Yamaga , Motoki Yanai
- Applicant: Kwansei Gakuin Educational Foundation , SK Materials JNC Co., Ltd.
- Applicant Address: JP Nishinomiya
- Assignee: Kwansei Gakuin Educational Foundation,SK Materials JNC Co., Ltd.
- Current Assignee: Kwansei Gakuin Educational Foundation,SK Materials JNC Co., Ltd.
- Current Assignee Address: JP Hyogo; KR Gyeonggi-do
- Agency: Foley & Lardner LLP
- Priority: JP 2017129413 2017.06.30
- International Application: PCT/JP2018/016830 2018.04.25
- International Announcement: WO2019/003615A 2019.01.03
- Date entered country: 2019-11-26
- Main IPC: H01L51/00
- IPC: H01L51/00 ; H01L51/50

Abstract:
The present invention relates to a light emitting layer material comprising: a polycyclic aromatic compound (1) in which a plurality of aromatic rings are linked by a boron atom and a oxygen atom or a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound. With this light emitting layer material having optimum light emitting characteristics, it is possible to provide an excellent organic EL element.
Ring A to ring C are an aryl ring or the like, Y1 is B (boron), X1 and X2 are —O— or >N—R (provided that at least one is —O—), X is a group represented by formula (3-X1), (3-X2), or (3-X3), Y is —O—, —S— or >N—R29, R29 is a hydrogen atom or an optionally substituted aryl, Ar1 to Ar4 are phenyl, a group represented by formula (4), or the like, and both Ar1 and Ar3 do not simultaneously represent a phenyl.
Ring A to ring C are an aryl ring or the like, Y1 is B (boron), X1 and X2 are —O— or >N—R (provided that at least one is —O—), X is a group represented by formula (3-X1), (3-X2), or (3-X3), Y is —O—, —S— or >N—R29, R29 is a hydrogen atom or an optionally substituted aryl, Ar1 to Ar4 are phenyl, a group represented by formula (4), or the like, and both Ar1 and Ar3 do not simultaneously represent a phenyl.
Public/Granted literature
- US20200266350A1 ORGANIC ELECTROLUMINESCENT ELEMENT Public/Granted day:2020-08-20
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