Invention Grant
- Patent Title: Organic electroluminescence device and method of manufacturing the same
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Application No.: US14967548Application Date: 2015-12-14
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Publication No.: US09722201B2Publication Date: 2017-08-01
- Inventor: Koji Hanawa , Jiro Yamada , Takashi Hirano
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2001-264410 20010831
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04 ; H01L51/52 ; H01L51/50 ; C22C5/06 ; C22C5/08

Abstract:
Provided are an organic electroluminescence device capable of enhancing reflectance of an anode, thereby resulting in improved light-emitting efficiency and a method of manufacturing the same. An anode (12), a thin film layer for hole injection (13), an insulating layer (14), an organic layer (15) including a luminescent layer (15C) and a cathode (16) including a semi-transparent electrode (16A) are laminated in order on a substrate (11). The anode (12) comprises silver which is a metal with high reflectance or an alloy including silver, and the thin film layer for hole injection (13) comprises chromium oxide or the like. Light generated in the luminescent layer (15C) is multiply reflected between the anode (12) and the semi-transparent electrode (16A) to be emitted from the cathode (16). As the reflectance of the anode (12) is enhanced, the light generated in the luminescent layer (15C) can be efficiently emitted. An alloy comprised in the anode (12) preferably includes silver, palladium and copper, and a silver content is preferably 50% by mass or over.
Public/Granted literature
- US20160233454A1 ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2016-08-11
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