Invention Grant
- Patent Title: Organic electroluminescence element, electronic device, composition, material for organic electroluminescence element, and composition film
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Application No.: US16640639Application Date: 2018-08-20
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Publication No.: US11631817B2Publication Date: 2023-04-18
- Inventor: Masahiro Kawamura , Tetsuya Masuda , Kazuki Nishimura
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JPJP2017-158938 20170821
- International Application: PCT/JP2018/030636 WO 20180820
- International Announcement: WO2019/039428 WO 20190228
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/00 ; C09K11/06

Abstract:
ABSTRACT An organic electroluminescence device includes an anode, a cathode, and at least one organic layer provided between the anode and the cathode, in which the at least one organic layer contains a first compound represented by a formula (1) and a second compound represented by a formula (2). In the formula (1), A1 is a substituted or unsubstituted nitrogen-containing heterocyclic group having 5 to 24 ring atoms, and L1 is a single bond, a substituted or unsubstituted divalent aryl group having 6 to 24 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms. In the formula (2), X1 is an oxygen atom or a sulfur atom.
Information query
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