Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2003-10-06
2010-11-09
Tarazano, D. Lawrence (Department: 1786)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S504000, C428S690000, C428S917000, C428S212000
Reexamination Certificate
active
07830085
ABSTRACT:
White light-emitting electrophosphorescent polymeric light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as emissive materials in a common region. These materials may be cast from solution. The CIE coordinates, the color temperatures and the color rendering indices of the white emission are insensitive to the brightness, applied voltage and applied current density.
REFERENCES:
patent: 6790538 (2004-09-01), Naito
patent: 6830828 (2004-12-01), Thompson et al.
patent: 6869695 (2005-03-01), Thompson et al.
patent: 6999222 (2006-02-01), Bazan et al.
patent: 7009338 (2006-03-01), D'Andrade et al.
patent: 2002/0125819 (2002-09-01), Mishima
patent: 2003/0205696 (2003-11-01), Thoms et al.
patent: 2004/0033388 (2004-02-01), Kim et al.
patent: 2004/0110031 (2004-06-01), Fukuda et al.
patent: 2340304 (2000-02-01), None
patent: 2002-280183 (2002-09-01), None
patent: 2003-77673 (2003-03-01), None
patent: 2003-086376 (2003-03-01), None
patent: 2003-208982 (2003-07-01), None
patent: 2004-253175 (2004-09-01), None
patent: 2004-79535 (2004-11-01), None
patent: WO 03/059015 (2003-07-01), None
Braun et al. “Visible light emission from semiconducting polymer diodes”Appl. Phys. Letters(1991) 58:1982-1984.
Chao et al. “White light emission from exciplex in a bilayer device with two blue light-emitting polymers”Appl. Phys. Letters(1998) 73:426-428.
Chen et al. “Triplet excition confinement in phosphorescent polymer light-emitting diodes”Applied Physics Letters(2003) 82(7):1006-1008.
deJong et al. “Stability of the interface between indium-tin-oxide and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) in polymer light-emitting diodes”Appl. Phys. Letters(2000) 77:2255-2257.
Friend et al. “Electroluminescence in conjugated polymers”Nature(1999) 397:121-128.
Gong et al. “Red electrophosphorescence from polymer doped with iridium complex”Appl. Phys. Letters(2002) 81:3711-3713.
Gong et al. “Stabilized Blue Emission from Plyfluorene-Based Light-Emitting Diodes: Elimination of Fluorenone Defects”Adv. Func. Mater.(2003) 13:325-330.
Gong et al. “High-performance polymer light-emitting diodes fabricated with a polymer hole injection layer”Appl. Phys. Letters(2003) 83:183-185.
Gong et al. “Electrophosphorescence from a Conjugated Copolymer Doped with an Iridium Complex: High Brightness and Improved Operational Stability”Adv. Mat.(2003) 15:45-49.
Greczynski et al. “Characterization of the PEDOT-PSS system by means of X-ray and ultraviolet photoelectron spectroscopy”Thin Solid Films(1999) 354:129-135.
Hamada et al. “White-Light-Emitting Material for Organic Electroluminescent Devices”Jpn. J. Appl. Physics(1996) 35:1339-1341.
Heeger et al. “Light Emission from Semiconducting Polymers: Light-Emitting Diodes, Light-Emitting Electrochemical Cells, Lasers and White Light for the Future”Solid State Commu.(1998) 107:673-679.
Heeger et al. “Nobel Lecture: Semiconducting and metallic polymers: The fourth generation of polymeric materials”Rev. Modem Phys.(2001) 73:681-700.
Hide et al. “White light from InGaN/conjugated polymer hybrid light-emitting diodes”Appl. Phys. Letters(1997) 70:2664-2666.
Je-Jung et al. “Opto-Electric Properties in the Phosphor Doped Polymeric Light-Emitting Diodes”Proceedings of the SPIE—The International Society for Optical Engineering SPIE-Int. Soc. Opt. Eng USA(2002) 4641:60-67.
Kawamura et al. “Energy transfer in polymer electrophosphorescent light emitting devices with single and multiple doped luminescent layers”J. of Applied Physics(2002) 92(1):87-93.
Kido et al. “White light-emitting organic electroluminescent devices using the poly(N-vinylcarbazole) emitter layer doped with three fluorescent dyes”Appl. Phys. Letters(1994) 64:815-817.
Kido et al. “Single-layer white light-emitting organic electroluminescent devices based on dye-dispersed poly(N-vinylcarbozole)”Appl. Phys. Letters(1995) 67:2281-2283.
Müller et al. “Mutli-colour organic light-emitting displays by solution processing”Nature(200) 421:829-833.
Ostrowski et al. “Amorphous iridium complexes for electrophosphorescent light emitting devices”Chem. Commun.(2002) 7:784-785.
Park et al. “Preparation and chemiluminescent properties of perylene-containing polyimides as polymeric red fluorophores”Synthe. Met.(2003) 177-184.
Strukelj et al. “Organic Multilayer White Light Emitting Diodes”American Chem. Society(1996) 118:1213-1214.
Tanaka et al. “White Light Emission from Polymer Electrophosphorescent Light-Emitting Devices Doped with Iridium Complexes”Jpn. J. Appl. Physics(2003) 42:2737-2740.
Tokito et al. “High-efficiency phosphorescent polymer light-emitting devices”Organic Electronics, Elsevier, Amsterdam (2003) 4(2/3):105-111.
Wang et al. “Multicolor multilayer light-emitting devices based on pyridine-containing conjugated polymers and para-sexiphenyl oligomer”Appl. Phys. Letters(1999) 74:3613-3615.
Zhang et al. “Use of Kubo formalism to study transport beyond the Born approximation: Application to low-temperature transport in Si metal-oxide-semiconductor field-effect transistors”Appl. Phys. Letters(1998) 73:1577-1579.
International Search Report, PCT/US2004/032756 dated Apr. 1, 2005.
Chen, F-C. et al. (Feb. 17, 2003). “Triplet-exciton Confinement in Phosphorescent Polymer Light-emitting Diodes,”Applied Physics Letters82(7):1006-1008.
Gong, X. et al. (Nov. 11, 2002). “Red Electrophosphorescence From Polymer Doped with Iridum Complex,”Applied Physics Letters81(20):3711-3713.
Yun, Je-J. et al. (2002). “Opto-electric Properties in the Phosphor Doped Polymeric Light-emitting Diodes,”Proceedings of SPIE4641:60-67.
Bazan Guillermo C.
Gong Xiong
Heeger Alan J.
Ma Wanli
Moses Daniel
Morrison & Foerster / LLP
Tarazano D. Lawrence
The Regents of the University of California
Thompson Camie S
LandOfFree
White electrophosphorescence from semiconducting polymer blends does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with White electrophosphorescence from semiconducting polymer blends, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and White electrophosphorescence from semiconducting polymer blends will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4151815