Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-02-21
2006-02-21
Patel, Vip (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000
Reexamination Certificate
active
07002293
ABSTRACT:
Top-emitting organic light-emitting diode devices include a reflective, opaque, and conductive anode layer including a metal or metal alloy or both formed over a transparent or an opaque substrate, a plurality of hole-injecting layers including a bilayer structure having a layer including an oxide and a layer including a fluorinated carbon disposed over the reflective, opaque, and conductive anode, a plurality of organic layers formed over the plurality of hole-injecting layers and including an emissive layer having electroluminescent material and a reflective, semitransparent and conductive cathode include a metal or metal alloy or both provided over the plurality of organic layers, and the plurality of the hole-injecting layers being configured to reduce the drive voltage, and the reflectivity of the anode, the transparency of the cathode, and the thickness of the organic layers between the electrodes being selected to change the internal reflection of light.
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patent: 6465953 (2002-10-01), Duggal
Tokito et al, Metal oxides as a hole-injecting layer for an organic electroluminescent device, J. Phys. D:Appl. Phys 29 (1996) 2750-2753.
Lu et al, High-efficiency top-emitting organic light-emitting devices, Applied Physics Letters, Nov. 2002, pp. 3921-3923.
Raychaudhuri et al, Fabrication of Sputtered Cathode for Organic Light-Emitting Diodes (OLED) Using Transparent Buffer, Proceedings of the 7th Asian Symposium on Information Display (ASID 2002), pp. 55-58.
Van Slyke et al, Organic electroluminescent devices with improved stability, Appl. Phys. Lett. 69 (15) Oct. 7, 1996, pp. 2160-2162.
Madathil Joseph K.
Raychaudhuri Pranab K.
Eastman Kodak Company
Owens Raymond L.
Patel Vip
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