Invention Grant
- Patent Title: Organic electroluminescence element and electronic device
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Application No.: US15501712Application Date: 2015-08-21
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Publication No.: US10651398B2Publication Date: 2020-05-12
- Inventor: Toshinari Ogiwara , Kei Yoshida
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Chiyoda-ku
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4bf04db1
- International Application: PCT/JP2015/073508 WO 20150821
- International Announcement: WO2016/031703 WO 20160303
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C09K11/06 ; C09K11/02 ; H01L51/50 ; H01L51/52

Abstract:
An organic electroluminescence device includes an anode, a cathode, a first organic layer interposed between the anode and the cathode, a second organic layer interposed between the first organic layer and the cathode, and a bipolar layer interposed between the first organic layer and the second organic layer and having bipolar characteristics, in which at least one of the first organic layer and the second organic layer includes the first compound and the second compound, the first compound exhibits delayed fluorescence, and an energy gap T77K(M2) at 77[K] of the second compound is larger than an energy gap T77K(M1) at 77[K] of the first compound.
Public/Granted literature
- US20170229660A1 ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC DEVICE Public/Granted day:2017-08-10
Information query
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