Invention Grant
- Patent Title: Organic electroluminescence device
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Application No.: US15329083Application Date: 2015-07-27
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Publication No.: US11217754B2Publication Date: 2022-01-04
- Inventor: Shuichi Hayashi , Naoaki Kabasawa , Shunji Mochiduki , Se-Jin Lee , Oun-gyu Lee , Bong-Ki Shin
- Applicant: HODOGAYA CHEMICAL CO., LTD. , SFC CO., LTD.
- Applicant Address: JP Tokyo; KR Chungcheongbuk-do
- Assignee: HODOGAYA CHEMICAL CO., LTD.,SFC CO., LTD.
- Current Assignee: HODOGAYA CHEMICAL CO., LTD.,SFC CO., LTD.
- Current Assignee Address: JP Tokyo; KR Chungcheongbuk-do
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2014-153658 20140729,JPJP2014-204426 20141003
- International Application: PCT/JP2015/071285 WO 20150727
- International Announcement: WO2016/017594 WO 20160204
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C07C211/54 ; C07C211/58 ; C07D403/04 ; C07C211/61 ; C07D491/048 ; C07D495/04 ; C07D495/14 ; C07D403/10 ; C09K11/06 ; C07D493/04 ; C07C217/90 ; C07D235/08 ; C07D239/26 ; C07D307/91 ; C07D333/76 ; C07D401/10 ; C07D401/14 ; C07D403/14 ; C07D409/12 ; C07D471/04 ; H01L51/50

Abstract:
According to the present invention, there is provided an organic electroluminescent device which has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode arranged in order of description. The device is characterized in that: the hole transport layer includes a specific arylamine compound, and that the luminous layer includes a specific indenoindole derivative or a specific carbazole derivative. The organic EL device of the present invention has improved efficiency of hole transport from the hole transport layer to the luminous layer and also improved efficiency of electron transport from the electron transport layer to the luminous layer, in comparison to conventional organic EL devices.
Public/Granted literature
- US20180212153A1 ORGANIC ELECTROLUMINESCENCE DEVICE Public/Granted day:2018-07-26
Information query
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