Light emitting element and azole compound

Details Light emitting element and azole compound Light emitting element and azole compound

2005-07-26

2009-12-15

Yamnitzky, Marie R. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257SE51044

Reexamination Certificate

active

07632579

ABSTRACT:
A light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.

REFERENCES:
patent: 5391681 (1995-02-01), Mühlebach et al.
patent: 5645948 (1997-07-01), Shi et al.
patent: 6084250 (2000-07-01), Jüstel et al.
patent: 6184618 (2001-02-01), Jüstel et al.
patent: 6458475 (2002-10-01), Adachi et al.
patent: 6670645 (2003-12-01), Grushin et al.
patent: 6911271 (2005-06-01), Lamansky et al.
patent: 6962755 (2005-11-01), Ise et al.
patent: 2002/0024293 (2002-02-01), Igarashi et al.
patent: 2002/0121638 (2002-09-01), Grushin et al.
patent: 2002/0182441 (2002-12-01), Lamansky et al.
patent: 2002/0197511 (2002-12-01), D'Andrade et al.
patent: 0 387 715 (1990-09-01), None
patent: 0 825 804 (1998-02-01), None
patent: WO 99/20081 (1999-04-01), None
patent: WO 00/57676 (2000-09-01), None
patent: WO 00/70655 (2000-11-01), None
patent: WO 01/41512 (2001-06-01), None
Maria D S M et al. “Aromatic propellenes. Part 10. Conformational study of hexa(imidazol-1-yl)benzene and hexakis (2-methylimidazol-1-yl)benzene by means of NMR and AM1 calculations”Journal of Molecular Structure, vol. 478, 1999, pp. 285-294, XP002194812.
Cheng L F et al. “Photoemission study of a new electroluminescent material: trimer of N- arylbenzimidazoles (TPBI)” Displays, vol. 21, 2000, pp. 51-54 XP002194813.
M.A. Baldo, “Very high-efficiency green organic light-emitting devices based on electrophosphorescenee” Applied Physics Letters, vol. 75, No. 1, Jul. 5, 1999.
Mauro Maestri, et al. “Photochemistry and Luminescence ofCyclometallated Complexes” Advances in Photochemistry, vol. 17, 1992, pp. 1-68.
Peter I. Djurovich, et al., “Ir(III) Cyclometalated Complexes as Efficient Phosphoresent Emitters in Polymer Blend and Organic LED's” Polymer Preprints 2000, 41 (1), 770-771.
W. Kowalsky, et al. “Organic Light Emitting Diodes”, publication dated Apr. 21, 1996 by XXP0000634526; pp. 450-453.
Viktor Milata et al., “2,4,6-Tris(azol-1y1)-1,3,5-Triazines: A New class of Multidentate Ligands”, Heterocycles 55(5), May 1, 2001, pp. 905-924.
ZCAPLUS 1998: 699652; abstract for Pilar Comago et al., “Aromatic propellenes, Part 9. synthesis and conformational study of hexakis(benzimidazol-1-yl)benzene”, ACH-Models in Chemistry 135(4), 1998, pp. 475-483.
Chihaya Adachi et al, “Endothermic energy transfer: A mechanism for generating very efficient high- energy phosphorscent emission in organic materials”, Applied Physics Letters 79(13), Sep. 24, 2001, pp. 2082-2084.

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