Invention Grant
- Patent Title: Organic EL element having reflective interface transport layers
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Application No.: US15315410Application Date: 2015-06-03
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Publication No.: US10230065B2Publication Date: 2019-03-12
- Inventor: Yoshiyuki Isomura , Katsuhiro Kikuchi , Shinichi Kawato , Hideki Uchida , Manabu Niboshi , Satoshi Inoue , Yuto Tsukamoto
- 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: JP2014-115173 20140603
- International Application: PCT/JP2015/066043 WO 20150603
- International Announcement: WO2015/186741 WO 20151210
- Main IPC: H01L51/00
- IPC: H01L51/00 ; H01L51/50 ; H01L51/52 ; H01L51/56 ; H01L27/32

Abstract:
In an organic EL element equipped with an anode, a cathode, a luminescent layer, and an electron transport layer, the cathode includes a reflecting electrode. The electron transport layer includes a doped electron transport layer to which an n-type dopant material is added and a non-doped electron transport layer to which an n-type dopant material is not added. A first reflection surface that reflects light from the luminescent layer is provided at an interface between the doped electron transport layer and the non-doped electron transport layer.
Public/Granted literature
- US20170098793A1 ORGANIC EL ELEMENT AND METHOD FOR MANUFACTURING SAME Public/Granted day:2017-04-06
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