Invention Grant
US08475938B2 Organic electroluminescent element, lighting device and display device
有权
有机电致发光元件,照明装置和显示装置
- Patent Title: Organic electroluminescent element, lighting device and display device
- Patent Title (中): 有机电致发光元件,照明装置和显示装置
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Application No.: US12934970Application Date: 2009-04-07
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Publication No.: US08475938B2Publication Date: 2013-07-02
- Inventor: Noriko Yasukawa , Rie Katakura , Hideo Taka
- Applicant: Noriko Yasukawa , Rie Katakura , Hideo Taka
- Applicant Address: JP Chiyoda-Ku
- Assignee: Konica Minolta Holdings, Inc.
- Current Assignee: Konica Minolta Holdings, Inc.
- Current Assignee Address: JP Chiyoda-Ku
- Agency: Lucas & Mercanti, LLP
- Priority: JP2008118285 20080430
- International Application: PCT/JP2009/057109 WO 20090407
- International Announcement: WO2009/133753 WO 20091105
- Main IPC: H01L51/54
- IPC: H01L51/54 ; C09K11/00

Abstract:
Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound.In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.
Public/Granted literature
- US20110017988A1 ORGANIC ELECTROLUMINESCENT ELEMENT, LIGHTING DEVICE AND DISPLAY DEVICE Public/Granted day:2011-01-27
Information query
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