Invention Grant
- Patent Title: Organic element
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Application No.: US15317156Application Date: 2015-06-11
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Publication No.: US10103202B2Publication Date: 2018-10-16
- Inventor: Shinichi Kawato , Katsuhiro Kikuchi , Satoshi Inoue , Takashi Ochi , Yuhki Kobayashi , Kazuki Matsunaga , Eiichi Matsumoto , Masahiro Ichihara
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: JP2014-121758 20140612
- International Application: PCT/JP2015/066851 WO 20150611
- International Announcement: WO2015/190550 WO 20151217
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/52 ; H01L51/56 ; H01L51/50 ; H01L51/00

Abstract:
In an organic EL element including a positive electrode, a negative electrode, and a light emitting layer (recombination layer) provided between the positive electrode and the negative electrode, an electron transport layer and an electron injection layer are provided between the light emitting layer and the negative electrode, and are sequentially arranged in the direction from the light emitting layer to the negative electrode. A hole injection layer and a hole transport layer are provided between the light emitting layer and the positive electrode, and are sequentially arranged in the direction from the positive electrode to the light emitting layer. A buffer layer for suppressing the electron trapping properties is provided between the light emitting layer and the hole transport layer.
Public/Granted literature
- US20170125488A1 ORGANIC ELEMENT Public/Granted day:2017-05-04
Information query
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