Title:
ORGANIC ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/074499
Kind Code:
A1
Abstract:
An organic electroluminescent device comprising a positive electrode layer and a negative electrode layer, and interposed therebetween, multiple layers of organic compound thin films including a light emitting layer and a hole blocking layer, wherein the hole blocking layer is disposed as a layer laid adjacent to the light emitting layer on its side of the negative electrode layer. Preferably, the hole blocking material constituting the hole blocking layer has an ionization potential 0.1 eV or more higher than that of the material for constituting the light emitting layer.
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Inventors:
TAMANO MICHIKO (JP)
TSUSHIMA NOZOMI (JP)
NARIHIRO HARUNORI (JP)
TSUSHIMA NOZOMI (JP)
NARIHIRO HARUNORI (JP)
Application Number:
PCT/JP2005/023727
Publication Date:
July 05, 2007
Filing Date:
December 26, 2005
Export Citation:
Assignee:
TOYO INK MFG CO (JP)
TAMANO MICHIKO (JP)
TSUSHIMA NOZOMI (JP)
NARIHIRO HARUNORI (JP)
TAMANO MICHIKO (JP)
TSUSHIMA NOZOMI (JP)
NARIHIRO HARUNORI (JP)
International Classes:
H01L51/50; C08F212/32; C08F226/06; C09K11/06
Foreign References:
JP2005276801A | 2005-10-06 | |||
JP2004347822A | 2004-12-09 | |||
JP2005220145A | 2005-08-18 |
Attorney, Agent or Firm:
KANAO, Hiroki (Bandai Bldg. 2nd Floor 10-14, Kandaawajicho 2-chom, Chiyoda-ku Tokyo 63, JP)
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