OLED device with substituted acridone compounds

Details OLED device with substituted acridone compounds OLED device with substituted acridone compounds

2007-12-14

2010-11-30

Garrett, Dawn (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000

Reexamination Certificate

active

07842406

ABSTRACT:
The invention provides an OLED device comprising a cathode, an anode, and having therebetween a layer containing an acridone compound including a diarylamine or carbazole substituent where the nitrogen of the acridone and the nitrogen of the diarylamine or carbazole are connected by an aromatic hydrocarbon linking group. OLED devices of the invention exhibit improved efficiency and drive voltage.

REFERENCES:
patent: 5106712 (1992-04-01), Kitatani et al.
patent: 6280859 (2001-08-01), Onikubo et al.
patent: 2005/0037232 (2005-02-01), Tyan et al.
patent: 1660844 (2004-12-01), None
patent: 10-168447 (1998-06-01), None
patent: 2005-93098 (2003-09-01), None
patent: 2007-191439 (2006-01-01), None
Vezzu et al., Organic Letters, (2009), vol. 11, No. 19, pp. 4310-4313.
JPO machine translation for JP 10-168447, published Jun. 1998.

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