Organic electroluminescent element

Details Organic electroluminescent element Organic electroluminescent element

2005-12-23

2010-06-01

Tarazano, D. Lawrence (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C252S301160, C257S040000, C257S101000

Reexamination Certificate

active

07727640

ABSTRACT:
The present invention provides an organic electroluminescent element including, between an anode and a cathode, at least a luminescent layer and an adjacent layer that is adjacent to the cathode side of the luminescent layer, wherein the luminescent layer contains a phosphorescent material and a host material, the adjacent layer contains an electron transport material and a hole transport material, and the electron affinity Ea (HT) of the hole transport material and the electron affinity Ea (ET) of the electron transport material satisfy the relation of 1 eV≦Ea (ET)−Ea (HT)≦2.8 eV.

REFERENCES:
patent: 6730929 (2004-05-01), Fukuyama et al.
patent: 7528542 (2009-05-01), Kawamura et al.
patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: 2002/0028329 (2002-03-01), Ise et al.
patent: 2002/0074935 (2002-06-01), Kwong et al.
patent: 2002/0086181 (2002-07-01), Lee-Mi et al.
patent: 2002/0113545 (2002-08-01), Adachi et al.
patent: 2002/0121860 (2002-09-01), Seo et al.
patent: 2002/0182441 (2002-12-01), Lamansky et al.
patent: 2004/0222739 (2004-11-01), Chen et al.
patent: 5-311161 (1993-11-01), None
patent: 2001-237079 (2001-08-01), None
patent: 2002-313583 (2002-10-01), None
patent: 2004-79413 (2004-03-01), None
patent: 2004-79414 (2004-03-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4155404