Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2011-03-08
2011-03-08
Tarazano, D. Lawrence (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C313S506000, C548S442000
Reexamination Certificate
active
07901791
ABSTRACT:
It is an object of the present invention to provide a material which is excellent in a hole injecting property and a hole transporting property, and to provide a light emitting element and a light emitting device using a material which is excellent in a hole injecting property and a hole transporting property. The present invention provides a carbazol derivative represented by a general formula (1). The carbazol derivative according to the present invention is excellent in the hole injecting property. By using the carbazol derivative according to the present invention as a hole injecting material for a hole injecting layer of a light emitting element, a driving voltage can be reduced. In addition, a lower driving voltage, improvement of the luminous efficiency, a longer life time, and higher reliability can be realized by applying the material to a light emitting element or a light emitting device.
REFERENCES:
patent: 6602619 (2003-08-01), Lin et al.
patent: 2003/0129448 (2003-07-01), Lin et al.
patent: 2004/0185299 (2004-09-01), Ly
patent: 2005/0067951 (2005-03-01), Richter et al.
patent: 2005/0221124 (2005-10-01), Hwang et al.
patent: 2005/0225235 (2005-10-01), Kim et al.
patent: 2006/0073357 (2006-04-01), Brunner et al.
patent: 2008/0254318 (2008-10-01), Nakashima et al.
patent: 2009/0058267 (2009-03-01), Nakashima et al.
patent: 62-280850 (1987-12-01), None
patent: 06-089040 (1994-03-01), None
patent: 06-346049 (1994-12-01), None
patent: 09-301934 (1997-11-01), None
patent: 10-310574 (1998-11-01), None
patent: 3210481 (2001-07-01), None
patent: 2004-026732 (2004-01-01), None
patent: 2004-323509 (2004-11-01), None
patent: WO 03/008515 (2003-01-01), None
patent: WO 03/064373 (2003-08-01), None
patent: WO 2005/040117 (2005-05-01), None
patent: WO 2005/090512 (2005-09-01), None
Thomas et. al, “Light Emitting Carbazole Derivatives” J. Am. Soc. 2001, 123, 9401-9411.
International Search Report for Application No. PCT/JP2005/019349 dated Nov. 22, 2005.
Written Opinion for Application No. PCT/JP2005/019349 dated Nov. 22, 2005.
Balionyte.A et al., “Potential hole-transport materials prepared by Ullmann coupling,”, Environmental and chemical physics, 2002, vol. 24, No. 1, pp. 30-34.
Search Report (Application No. 05795774.8) Dated Jun. 22, 2010.
Kawakami Sachiko
Kumaki Daisuke
Nakashima Harue
Clark Gregory
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
Tarazano D. Lawrence
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