Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2004-02-06
2009-06-30
Roy, Sikha (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S504000, C313S512000, C428S690000, C428S917000, C257S100000
Reexamination Certificate
active
07554263
ABSTRACT:
A method for manufacturing a light emitting device with higher light extraction efficiency, lower consumption, longer operation life, and higher reliability can be provided. The light emitting device of the present invention comprises a substrate having an insulating surface, a transparent film formed over the substrate having the insulating surface, a first electrode formed over the transparent film, a layer including an organic compound formed over the first electrode, and a second electrode formed over the layer including the organic compound, wherein the refractive index of the transparent film sequentially varies from an interface at the side of the substrate having the insulating surface to an interface at the side of the first electrode.
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Cook Alex Ltd.
Roy Sikha
Semiconductor Energy Laboratory Co,. Ltd.
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