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Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
Japanese Patent JP2012094898
Kind Code:
A
Abstract:

To provide an organic electroluminescence element which exhibits high external extraction quantum efficiency, has a long emission life, and is driven at a low voltage.

The organic electroluminescence element having at least organic layers between a cathode and an anode is characterized in that at least one layer A of the organic layers contains an oligomer which has, as a repeating unit, a chemical structure represented by specific general formula and has a polymerization degree within a range of 2-20.


Inventors:
KO HIDEO
TANAKA TATSUO
SUZURISATO YOSHIYUKI
KITA HIROSHI
Application Number:
JP2012005911A
Publication Date:
May 17, 2012
Filing Date:
January 16, 2012
Export Citation:
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Assignee:
KONICA MINOLTA HOLDINGS INC
International Classes:
H01L51/50; C07F15/00; C08F12/28; C08F26/06; C08G61/10; C09K11/06
Domestic Patent References:
JP2003342325A2003-12-03
JP2004292766A2004-10-21
JP2005183344A2005-07-07
JP2003277444A2003-10-02
JP2004220986A2004-08-05
JP2004185967A2004-07-02
Attorney, Agent or Firm:
Gwangyang International Patent Office



 
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