Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-06-22
2009-06-30
Williams, Joseph L (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S498000, C313S504000, C313S506000, C313S512000
Reexamination Certificate
active
07554257
ABSTRACT:
An electroluminescent apparatus includes an OLED device emitting light in the blue and green spectrums, and at least one down conversion layer. The down conversion layer absorbs at least part of the green spectrum light and emits light in at least one of the orange spectra and red spectra.
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patent: 2002/0030444 (2002-03-01), Muller-Mach et al.
patent: 2002/0197511 (2002-12-01), D'Andrade et al.
patent: 2006/0145599 (2006-07-01), Stegamat et al.
Anil R. Duggal; J. J. Shiang; Christian M. Heller and Donald F. Foust; Organic light-emitting devices for illumination quality white light; Applied Physics Letters vol. 80, No. 19; pp. 3470-3472; May 13, 2002.
Choong Vi-En
Choulis Stelios A.
Krummacher Benjamin C.
Mathai Mathew
Cohen Pontani Lieberman & Pavane LLP
Osram Opto Semiconductors GmbH
Quarterman Kevin
Williams Joseph L
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