Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2007-05-24
2009-11-24
Macchiarolo, Peter (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S504000
Reexamination Certificate
active
07622865
ABSTRACT:
A light-emitting device includes: a substrate; a light reflection layer that is formed on the substrate and reflects light; a first electrode that is formed on the light reflection layer and transmits light; a light-emitting layer that is formed on the first electrode and emits light; a second electrode that is formed on the light-emitting layer and transmits a part of light from the light-emitting layer and reflects the rest of the light from the light-emitting layer; and a conductive transflective layer that is formed on the second electrode and that transmits a part of light from the second electrode and reflects the rest of the light from the second electrode. A work function of the second electrode is 4 eV (electron volts) or less. The conductive transflective layer is formed of a metal material having a higher optical reflectance than the second electrode.
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Macchiarolo Peter
Oliff & Berridg,e PLC
Seiko Epson Corporation
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