Invention Grant
- Patent Title: Organic electroluminescence device
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Application No.: US13767417Application Date: 2013-02-14
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Publication No.: US09966539B2Publication Date: 2018-05-08
- Inventor: Tomoki Kato , Takayasu Sado , Takahiro Fujiyama
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Chiyoda-ku
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H01L51/00
- IPC: H01L51/00 ; C07C211/61 ; H01L51/50

Abstract:
An organic electroluminescence device contains an anode and a cathode facing each other, and intervening therebetween at least two hole transporting layers and a light emitting layer sequentially, and one of the hole transporting layers contains a compound having a particular structure having a fluorene structure at the center thereof, and is not adjacent to the light emitting layer. The organic electroluminescence device has a hole transporting layer having an increased thickness, is capable of being controlled in the thickness of the optical film, and has an enhanced device capability.
Public/Granted literature
- US20140061602A1 ORGANIC ELECTROLUMINESCENCE DEVICE Public/Granted day:2014-03-06
Information query
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