OLEDs having improved luminance stability

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

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C313S506000, C428S690000, C428S917000

Reexamination Certificate

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07449830

ABSTRACT:
An organic light emitting device composed of: a cathode; a layer including an organic electroluminescent material and a charge transport material; a layer including an electron accepting material; an anode capping layer; an anode; and a substrate in the sequence before the cathode or after the anode.

REFERENCES:
patent: 2823905 (1958-02-01), Clay
patent: 3598644 (1971-08-01), Goffe et al.
patent: 4084966 (1978-04-01), Haas et al.
patent: 4287449 (1981-09-01), Takeda et al.
patent: 4652794 (1987-03-01), Waite et al.
patent: 4665115 (1987-05-01), Lundberg et al.
patent: 5049780 (1991-09-01), Dobrowolski et al.
patent: 5059861 (1991-10-01), Littman et al.
patent: 5608287 (1997-03-01), Hung et al.
patent: 5707745 (1998-01-01), Forrest et al.
patent: 5719467 (1998-02-01), Antoniadis et al.
patent: 5837391 (1998-11-01), Utsugi
patent: 5853905 (1998-12-01), So et al.
patent: 5925980 (1999-07-01), So et al.
patent: 5935721 (1999-08-01), Shi et al.
patent: 5972247 (1999-10-01), Shi et al.
patent: 6023073 (2000-02-01), Strite
patent: 6028327 (2000-02-01), Mizoguchi et al.
patent: 6105202 (2000-08-01), Grasso et al.
patent: 6121727 (2000-09-01), Kanai et al.
patent: 6225467 (2001-05-01), Esteghamatian et al.
patent: 6303250 (2001-10-01), Watanabe et al.
patent: 6392250 (2002-05-01), Aziz et al.
patent: 6392339 (2002-05-01), Aziz et al.
patent: 6423429 (2002-07-01), Kido et al.
patent: 6437123 (2002-08-01), Bock et al.
patent: 6566807 (2003-05-01), Fujita et al.
patent: 6614175 (2003-09-01), Aziz et al.
patent: 6734625 (2004-05-01), Vong et al.
patent: 6737177 (2004-05-01), Aziz et al.
patent: 6740429 (2004-05-01), Aziz et al.
patent: 6750609 (2004-06-01), Aziz et al.
patent: 6753098 (2004-06-01), Aziz et al.
patent: 6759146 (2004-07-01), Aziz et al.
patent: 6773830 (2004-08-01), Aziz et al.
patent: 6818329 (2004-11-01), Liao et al.
patent: 7211948 (2007-05-01), Liao et al.
patent: 7288887 (2007-10-01), Aziz et al.
patent: 2002/0037398 (2002-03-01), Tofuku et al.
patent: 2002/0121860 (2002-09-01), Seo et al.
patent: 2002/0180349 (2002-12-01), Aziz et al.
patent: 2003/0116772 (2003-06-01), Yamazaki et al.
patent: 2003/0230974 (2003-12-01), Chang et al.
patent: 2003/0234609 (2003-12-01), Aziz et al.
patent: 2004/0004433 (2004-01-01), Lamansky et al.
patent: 2006/0022590 (2006-02-01), Aziz et al.
patent: 2006/0105202 (2006-05-01), Kitamura
patent: 2006/0139516 (2006-06-01), Park
patent: 2006/0251920 (2006-11-01), Aziz et al.
patent: 2006/0261727 (2006-11-01), Aziz et al.
patent: 2006/0261731 (2006-11-01), Aziz et al.
patent: 2006/0263593 (2006-11-01), Aziz et al.
patent: 2006/0263628 (2006-11-01), Aziz et al.
patent: 2006/0263629 (2006-11-01), Aziz et al.
patent: 09 77 287 (2000-02-01), None
patent: 09 772 88 (2000-02-01), None
patent: 1 009 044 (2000-06-01), None
patent: 1 017 118 (2000-07-01), None
patent: 1 017 118 (2000-07-01), None
patent: 1 029 832 (2000-08-01), None
patent: 1 160 890 (2001-12-01), None
patent: 1 167 488 (2002-01-01), None
patent: 1 311 139 (2003-05-01), None
patent: 1 339 112 (2003-08-01), None
patent: 1 624 503 (2006-02-01), None
patent: 1 624 504 (2006-02-01), None
patent: 1 010 359 (2006-04-01), None
patent: 8-222374 (1996-08-01), None
patent: 2002-055203 (2002-02-01), None
patent: WO 97/33296 (1997-09-01), None
patent: WO 98/41065 (1998-09-01), None
patent: WO01/06816 (2001-01-01), None
patent: WO01/08240 (2001-02-01), None
patent: WO 2006/033472 (2006-03-01), None
patent: WO 2006/038573 (2006-04-01), None
patent: WO 2006/076092 (2006-07-01), None
Hany Aziz et al., U.S. Appl. No. unavailable, filed on the same day as the present application, titled “OLEDS Having Inorganic Material Containing Anode Capping Layer.”
Chengfeng Qiu et al., “Comparative Study of Metal or Oxide Capped Indium-Tin Oxide Anodes for Organic Light-Emitting Diodes,”Journal of Applied Physics,vol. 93, No. 6, pp. 3253-3257 (Mar. 15, 2003).
Yulong Shen et al., “Modification of Indium Tin Oxide for Improved Hole Injection in Organic Light Emitting Diodes,”Advanced Materials,vol. 13, No. 16, pp. 1234-1238 (Aug. 16, 2001).
I-Min Chan et al., “Enhanced Hole Injections in Organic Light-Emitting Devices by Depositing Nickel Oxide on Indium Tin Oxide Anode,”Applied Physics Letters,vol. 81, No. 10, pp. 1899-1901 (Sep. 2, 2002).
Chieh-Wei Chen et al., “Top-Emitting Organic Light-Emitting Devices Using Surface-Modified Ag Anode,”Applied Physics Letters,vol 83, No. 25, pp. 5127-5129 (Dec. 22, 2003).
Wenping Hu et al., “Lowering of Operational Voltage of Organic Electroluminescent Devices by Coating Indium-Tin-Oxide Electrodes with a Thin CuOxLayer,”Applied Physics Letters,vol. 80, No. 15, pp. 2640-2641 (Apr. 15, 2002).
Chengfeng Qiu et al., “Praseodymium Oxide Coated Anode for Organic Light-Emitting Diode,”Applied Physics Letters,vol 80, No. 19, pp. 3485-3487 (May 13, 2002).
S. A. Van Slyke et al., “Organic Electroluminescent Devices With Improved Stability,”Applied Physics Letters,vol. 69, No. 15, pp. 2160-2162 (Oct. 7, 1996).
L. S. Hung et al., “Anode Modification in Organic Light-Emitting Diodes by Low-Frequency Plasma Polymerizaiton of CHF3,” Applied Physics Letters,vol. 78, No. 5, pp. 673-675 (Jan. 29, 2001).
Soo-Jin Chua et al., “Stabilization of Electrode Migration in Polymer Electroluminescent Devices,”Applied Physics Letters,vol. 81, No. 6, pp. 1119-1121 (Aug. 5, 2002).
S. Karg et al., “Increased Brightness and Lifetime of Polymer Light-Emitting Diodes With Polyaniline Anodes,”Synthetic Metals,vol. 80, pp. 111-117 (1996).
Z. B. Deng et al., “Enhanced Brightness and Efficiency in Organic Electroluminscent Devices Using SiO2Buffer Layers,”Applied Physics Letters,vol. 74, No. 15, pp. 2227-2229 (Apr. 12, 1999).
Hongjin Jiang et al., “Improvement of Organic Light-Emitting Diodes Performance by the Insertion of a Si3N4Layer,”Thin Solid Films,vol. 363, pp. 25-28 (2000).
A. Gyoutoku et al., “An Organic Electroluminescent Dot-Matrix Display Using Carbon Underlayer,”Synthetic Metals,vol. 91, pp. 73-75 (1997).
Hany Aziz et al., U.S. Appl. No. unavailable, filed on the same day as the present application, titled “OLEDS Having Inorganic Material Containing Anode Capping Layer.”, (Aug. 2, 2004).
Aziz et al., “Reduced reflectance cathode for organic light-emitting devices using metal organic mixtures”, Applied Physics Letters, vol. 83, No. 1, pp. 186-188 (2003).
Day et al., “The use of charge transfer interlayers to control hole injection in molecular organic light emitting diodes”, Thin Solid Films, vol. 410, pp. 159-166 (Mar. 2002).
Gardin et al., “Light-Absorption Phenomena in Novel Low-Reflectance Cathodes for Organic Light-Emitting Devices Utilizing Metal-Organic Mixtures”, Advanced Materials, vol. 15, No. 23, pp. 2021-2024 (Dec. 2003).
Hyun-Ouk Ha et al., “Improving the efficiency of organic electroluminescent devices by introducing an electron-accepting and thermally stable polymer”, Optical Materials, vol. 21 pp. 165-168 (2002).
Liu et al., “Development of highly stable organic electroluminescent devices with a doped co-host emitter system”, Current Applied Physics 5, pp. 218-221 (2005).

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