Organic light emitting device with corrugated light emitting layer
AssigneesSeiko Epson Corporation, Cambridge University Technical Services Limited of the Old Schools
InventorTakeo Kawase
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Abstract
A light emitting device formed of a substrate having first and second regions, a first non-transparent electrode formed on the substrate in the first region, a layer of organic light emitting material provided over the first non-transparent electrode in the first region, a layer of organic light emitting material provided over the substrate in the second region, the light emitting materials each having at least one planar surface which is corrugated, a second non-transparent electrode formed over the light emitting material in the first region, and a mirror formed over the light emitting material in the second region. A device having a stacked structure of electrodes and light emitting layers is also disclosed, as are various methods of fabricating the devices.
Claims25
A light emitting device comprising a substrate having first and second regions, a first non-transparent electrode formed on the substrate in the first region, a layer of organic light emitting material provided over the first non-transparent electrode in the first region, a layer of organic light emitting material provided over the substrate in the second region, the light emitting materials each having at least one planar surface which is corrugated, a second non-transparent electrode formed over the light emitting material in the first region, and a mirror formed over the light emitting material in the second region.
A light emitting device comprising:
- a substrate having first and second regions;
- a first, non-transparent, electrode formed on the substrate in the first region;
- a first layer of organic light emitting material provided over the first electrode in the first region;
- a first layer of organic light emitting material provided over the substrate in the second region;
- the first layers of light emitting material each having at least one planar surface which is corrugated;
- a second electrode formed over the first layer of light emitting material in the first region;
- a layer of electrically insulating material formed over the second electrode in the first region;
- a layer of transparent material formed over the first layer of light emitting material in the second region;
- a third electrode formed over the electrically insulating material in the first region;
- a second layer of organic light emitting material provided over the third electrode in the first region;
- a second layer of organic light emitting material provided over the layer of transparent material in the second region;
- the second layers of light emitting material each having at least one planar surface which is corrugated;
- a fourth, non-transparent, electrode formed over the second layer of light emitting material in the first region;
- and a mirror formed over the second layer of light emitting material in the second region.
A method of manufacturing a light emitting device comprising the steps of providing a substrate having first and second regions, providing a first non-transparent electrode on the substrate in the flit region, providing a layer of organic legit emitting material over the first non-transparent electrode in the first region, providing a layer of organic light omitting material over the substrate in the second region, providing each of the light emitting materials with at least one planar surface which is corrugated, providing a second non-transparent electrode over the light emitting material in the first region, and providing a minor over the light emitting material in the second region.
A method of manufacturing a light emitting device comprising the steps of providing a substrate having first and second regions;
- providing a first, non-transparent, electrode on the substrate in the first region;
- providing a first layer of organic light emitting material over the first electrode in the first region;
- providing a first layer of organic light emitting material over the substrate in the second region;
- providing each of the first layers of light emitting material with at least one planar surface which is corrugated;
- providing a second electrode over the first layer of light emitting material in the first region;
- providing a layer of electrically insulating material over the second electrode in the first region;
- providing a layer of transparent material over the first layer of light emitting material in the second region;
- providing a third electrode over the electrically insulating material in the first region;
- providing a second layer of organic light emitting material over the third electrode in the first region;
- providing a second layer of organic light emitting material over the layer of transparent material in the second region;
- providing each of the second layers of light emitting material with at least one planar surface which is corrugated;
- providing a fourth, non-transparent, electrode over the second layer of light emitting material in the cast region;
- and providing a mirror over the second layer of light emitting material in the second region.
Dependencies are inferred from the claim text.