Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-05-23
2006-05-23
Williams, Joseph (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S498000, C313S506000
Reexamination Certificate
active
07049741
ABSTRACT:
Bottom-emitting organic light-emitting diode device includes a semitransparent, reflective and conductive anode including a metal or metal alloy or both formed over a transparent 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 semitransparent, reflective and conductive anode, a plurality of organic layers formed over the plurality of hole-injecting layers and including an emissive layer having an electroluminescent material, and a reflective, opaque and conductive cathode of 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 transparency of the anode, the reflectivity 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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Madathil Joseph K.
Raychaudhuri Pranab K.
Eastman Kodak Company
Owens Raymond L.
Quarterman Kevin
Williams Joseph
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