Invention Grant
- Patent Title: Organic electroluminescent element including a condensed aromatic heterocyclic ring compound
- Patent Title (中): 含有稠合芳族杂环化合物的有机电致发光元件
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Application No.: US13530719Application Date: 2012-06-22
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Publication No.: US08951650B2Publication Date: 2015-02-10
- Inventor: Noriko Yasukawa , Hiroshi Kita , Eisaku Katoh , Tatsuo Tanaka , Shinya Otsu , Rie Katakura , Hidekane Ozeki , Hideo Taka
- Applicant: Noriko Yasukawa , Hiroshi Kita , Eisaku Katoh , Tatsuo Tanaka , Shinya Otsu , Rie Katakura , Hidekane Ozeki , Hideo Taka
- Applicant Address: JP
- Assignee: Konica Minolta Holdings, Inc.
- Current Assignee: Konica Minolta Holdings, Inc.
- Current Assignee Address: JP
- Agency: Cantor Colburn LLP
- Priority: JP2008-125814 20080513; JP2008-295408 20081119; JP2009-073509 20090325; JP2009-115333 20090512
- Main IPC: H01L51/50
- IPC: H01L51/50 ; C09K11/06 ; H01L51/00 ; H05B33/14
Abstract:
Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1−Y1 Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:
Public/Granted literature
- US20120326601A1 ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE Public/Granted day:2012-12-27
Information query
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