Invention Grant
- Patent Title: Organic electroluminescence element and electronic device
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Application No.: US17764846Application Date: 2021-01-22
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Publication No.: US12075699B2Publication Date: 2024-08-27
- Inventor: Takushi Shiomi , Toshinari Ogiwara , Hiromi Nakano
- 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: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP 20024283 2020.02.17
- International Application: PCT/JP2021/002267 2021.01.22
- International Announcement: WO2021/166552A 2021.08.26
- Date entered country: 2022-03-29
- Main IPC: H01L51/50
- IPC: H01L51/50 ; C07D209/86 ; C07D405/10 ; C07D405/14 ; C07D491/048 ; C07D495/04 ; C09K11/06 ; H10K85/60 ; H10K50/11

Abstract:
An organic electroluminescence device includes an anode, an emitting layer, and a cathode in this order. The emitting layer comprises a delayed fluorescent compound M2 and a compound M3 having at least one deuterium atom, and the compound M3 is not a compound having a partial structure represented by a formula (1C) or (2C). S1(M2) of the compound M2 and S1(M3) of the compound M3 satisfy a relationship of S1(M3)>S1(M2). In the formulae (1C) and (2C), Y41 to Y48 are each independently a N atom, CR, or a C atom bonded to another atom or the like in the compound M3, where each R is independently a H atom or a substituent, at least one of Y41 to Y48 is a N atom, and at least one of Y41 to Y48 is a C atom bonded to another atom or the like in the compound M3.
Public/Granted literature
- US20230048761A1 ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC DEVICE Public/Granted day:2023-02-16
Information query
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