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Title:
有機エレクトロルミネッセンス素子、表示装置および照明装置
Document Type and Number:
Japanese Patent JP4622218
Kind Code:
B2
Abstract:

To provide an organic electroluminescent element having high emission efficiency, and a display device or a lighting system equipped with it.

This organic electroluminescent element has one or more organic layers between a negative electrode and a positive electrode. The organic electroluminescent element is characterized by containing, in at least one of the organic layers, a multi-branched structure compound having a core compound being a luminescent compound and having a repeating unit expressed by general formula (1) at least in the second generation or in a subsequent generation. In a formula (1), Ar1is an arylene group or a heteroarylene group that may have a substituted group; and L1is any link selected from the following link group 1.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
High Hideo
Hiroshi Kita
Application Number:
JP2003320898A
Publication Date:
February 02, 2011
Filing Date:
September 12, 2003
Export Citation:
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Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
H01L51/50; C09K11/06; G09F9/30; H01L27/32; H05B33/14
Domestic Patent References:
JP2004227994A
Foreign References:
WO2005026144A1
US20050017629



 
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