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US 5,920,080 AGranted
Emissive display using organic light emitting diodes
AssigneeFED Corporation
InventorGary W. Jones
Life of this patent
Estimating the term…
Abstract
An organic light emitting device ("OLED") for a color video display. The OLED is a layered structure formed on a substrate. A layer of light emitting organic material is sandwiched between two conductive layers and placed on the substrate. Overlying the conductors and organic layer is a transparent cover layer. The OLED of the present invention includes an innovative microcavity enhancing structure, which restricts light emission in directions parallel to the substrate and provides increased light output toward the viewer.
Claims24
An organic light emitting device comprising:
- a substrate;
- a first conductor overlying said planar substrate;
- a layer of light emitting organic material overlying said first conductor;
- a second conductor overlying said layer of light emitting material;
- and
- a means for restricting light emission in directions parallel to said substrate.
3 more elements
An organic light emitting device comprising:
- a planar substrate, comprising a silicon wafer and a conducting plug, wherein said silicon wafer further comprises integrated circuitry, and said conducting plug connects the integrated circuitry to a conductor pad, wherein said conductor pad overlies said planar substrate;
- a layer of light emitting organic material overlying said conductive pad;
- a layer of getter material capable of reacting with water overlying said layer of light emitting organic material;
- a transparent conductor layer overlying said getter layer;
- a plurality of layers of dielectric material, wherein each of said plurality of layers of dielectric material has a different index of refraction from any adjacent layer;
- a barrier layer overlying said layers of dielectric material;
- wherein said barrier layer is formed from diamond-like carbon;
- and
- a transparent top cover overlying said barrier layer.
6 more elements
Dependencies are inferred from the claim text.