Organic electroluminescence element

Details Organic electroluminescence element Organic electroluminescence element

2007-07-20

2011-10-25

Garrett, Dawn (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000

Reexamination Certificate

active

08043725

ABSTRACT:
The invention provides an organic electroluminescence element which comprises a hole transporting layer which comprises a tris(p-terphenyl-4-yl)amine represented by the general formula (I)wherein R1, R2and R3are each independently a hydrogen atom, an alkyl group, a cycloalkyl group which may have substituents or an aryl group which may have substituents as a hole transporting agent, and a hole injecting layer which comprises a hole injecting agent comprising an aromatic tertiary amine having an ionization potential in the range of 5.2-5.6 eV. This organic electroluminescence element can be driven at a low voltage with high efficiency and at high luminance.

REFERENCES:
patent: 7629059 (2009-12-01), Akashi et al.
patent: 2002/0057050 (2002-05-01), Shi
patent: 2004/0082813 (2004-04-01), Iwakuma et al.
patent: 2004/0191564 (2004-09-01), Kim et al.
patent: 2005/0184657 (2005-08-01), Kato et al.
patent: 07-053955 (1995-02-01), None
patent: 2001-196183 (2001-07-01), None
patent: 2001-316338 (2001-11-01), None
patent: 2004-095491 (2004-03-01), None
patent: 2005-294188 (2005-10-01), None
patent: WO 2004/068912 (2004-08-01), None
Machine translation for JP 2001-316338, which was published in Nov. 2001.
Machine translation for JP 2001-196183, which was published in Jul. 2001.
International Search Report of PCT/JP2007/064727, dated Sep. 4, 2007.
Shirota et al. “Organic light-emitting diodes using novel emitting amorphous molecular materials.” Proceedings of SPIE, vol. 3797 Organic Light-Emitting Materials and Devices III, 1999, pp. 158-169.

Affiliated with

Also associated with

Rating

Organic electroluminescence element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic electroluminescence element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic electroluminescence element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4283981