Organic element for electroluminescent devices

Details Organic element for electroluminescent devices Organic element for electroluminescent devices

2006-09-05

2006-09-05

Garrett, Dawn L. (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S098000

Reexamination Certificate

active

07101631

ABSTRACT:
Disclosed is an electroluminescent device comprising a light-emitting layer containing a phosphorescent light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and a pyrazole compound fused with at least one aromatic ring. The device provides useful light emissions.

REFERENCES:
patent: 5807627 (1998-09-01), Friend et al.
patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: 2003/0091862 (2003-05-01), Tokito et al.
patent: 2004/0048101 (2004-03-01), Thompson et al.
patent: 2004/0253478 (2004-12-01), Thompson et al.
patent: 1 191 612 (2002-03-01), None
patent: 01/41512 (2001-06-01), None
patent: 2004/085450 (2004-10-01), None
A. Tamayo, et al., “Synthesis and Characterization of Facial and Meridional Tris-cyclometalated Iridium(III) Complexes”, J. Am. Chem. Soc., 2003, 125, pp. 7377-7387.
G. B. Caygill, et al., Cyclometallated Compounds III, Journal of Organometallic Chemistry, 327, (1987), pp. 115-123, no month given.
U.S. Appl. No. 60/457,012, filed Mar. 24, 2003 titled “Organometallic Compounds for Use in Electroluminescent Devices” by Thompson et al.

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