Invention Grant
- Patent Title: Organic electroluminescent device
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Application No.: US15541842Application Date: 2016-01-04
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Publication No.: US10593884B2Publication Date: 2020-03-17
- Inventor: Norimasa Yokoyama , Shuichi Hayashi , Takeshi Yamamoto , Naoaki Kabasawa , Daizou Kanda , Kazunori Togashi , Shunji Mochizuki
- Applicant: Hodogaya Chemical Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hodogaya Chemical Co., Ltd.
- Current Assignee: Hodogaya Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Locke Lord LLP
- Agent James E. Armstrong, IV; Nicholas J. DiCeglie, Jr.
- Priority: JP2015-001119 20150106; JP2015-123597 20150619
- International Application: PCT/JP2016/050005 WO 20160104
- International Announcement: WO2016/111254 WO 20160714
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/00 ; C07D401/10 ; C07C211/54 ; C09K11/06 ; C07C211/61 ; C07D209/88 ; C07C211/60 ; H01L51/52

Abstract:
In the organic electroluminescent device having at least an anode, a hole injection layer, a first hole injection layer, a second hole injection layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.
Public/Granted literature
- US20180006235A1 ORGANIC ELECTROLUMINESCENT DEVICE Public/Granted day:2018-01-04
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