Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-03-23
2008-08-26
Epps, Georgia Y. (Department: 2878)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C250S214100, C250S552000, C257S079000, C428S690000
Reexamination Certificate
active
07417370
ABSTRACT:
A bottom-emitting organic light-emitting diode (OLED) device, comprising: a transparent substrate; an optical isolation cavity formed over the substrate having a refractive index lower than the refractive index of the substrate; a transparent electrode formed over the optical isolation cavity; one or more layers of organic light-emitting material formed over the transparent electrode; a second electrode formed over the one or more layers of organic light-emitting material; and a light-scattering layer formed over the optical isolation cavity; wherein the transparent electrode or a second layer formed between the optical isolation cavity and the transparent electrode comprises one or more openings leading to the optical isolation cavity, and the cavity is formed by etching a sacrificial layer deposited between the substrate and the transparent electrode or the second layer through the one or more openings.
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Boroson Michael L.
Cok Ronald S.
Anderson Andrew J.
Eastman Kodak Company
Epps Georgia Y.
Shaw Stephen H.
Williams Don
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