Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-03-08
2011-03-08
Won, Bumsuk (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S509000, C313S512000
Reexamination Certificate
active
07902748
ABSTRACT:
An electroluminescent (EL) device that includes a light-emitting area formed over a substrate. First and second electrodes and one or more EL unit(s) are included along with at least one light-emitting layer formed between the electrodes, wherein at least one electrode is transparent. A cover is located over the light-emitting area, and a light-scattering layer is located between the substrate and cover. The light-scattering layer includes transparent, light-scattering particles, wherein the ratio of the volume of light-scattering particles to the volume of the light-scattering layer is greater than 0.55 over a majority of the light-emitting area, wherein either the substrate or cover is transparent and transmits light emitted from the EL unit(s).
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Global OLED Technology LLC
McKenna Long & Aldridge LLP
Won Bumsuk
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