Light emitting element and azole compound

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C428S917000, C313S504000, C313S506000

Reexamination Certificate

active

06962755

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: 2002/0024293 (2002-02-01), Igarashi et al.
patent: 2002/0121638 (2002-09-01), Grushin et al.
patent: 2002/0182441 (2002-12-01), Lamanasky 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: 00/57676 (2000-09-01), None
patent: 00/70655 (2000-11-01), None
patent: 01/41512 (2001-06-01), None
Viktor Milata et al., “2,4,6-Tris(azol-1-yl)-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 Cornago 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 phosphorescent emission in organic materials”, Applied Physics Letters 79(13), Sep. 24, 2001, pp. 2082-2084.
W. Kowalsky, et al.; “Organic Light Emitting Diodes”; publication dated Apr. 21, 1996; XP 000634526; pp. 450-453, Proceedings of the Int'l Conference on Indian Phosphide and Related Materials, IEEE.
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 electrophosphorescence” Applied Physics Letters, Volumn 75, No. 1, Jul. 5, 1999, pp. 4-6.
Mauro Maestri, et al. “Photochemistry and Luminescence of Cyclometallated Complexes” Advances in Photochemistry, vol. 17, 1992, pp. 1-68.
Peter I. Djurovich, et al. “Ir(III) Cyclometalated Complexes as Efficient Phosphorescent Emitters in Polymer Blend and Organic LEDs” Polymer Preprints 2000, 41 (1), 770-771.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Light emitting element and azole compound does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3506517

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.