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US 6,888,308 B1Granted
Organic LED device
AssigneeOSRAM Opto Semiconductors GmbH
InventorEwald Karl Michael Guenther
Life of this patent
Estimating the term…
Abstract
The invention provides for the formation of thin devices having an overall thickness which is less than the width of the sealing frame used to mount the cap. The formation of thin devices is facilitated by the use of spacers in the device region to support the cap.
Claims38
A device comprising:
- a substrate with a device region, wherein the device region includes an organic light emitting diode having at least one organic layer;
- a sealing frame surrounding the device region;
- a cap mounted on the sealing frame to encapsulate the device region, the cap creating a cavity over the device region;
- and
- spacers located in the device region to support the cap;
- wherein a thickness of the device (TP) is less than a width of the sealing frame (WSF).
3 more elements
A device comprising:
- a substrate with a device region, wherein the device region includes an organic light emitting diode having at least one organic layer;
- a sealing frame surrounding the device region;
- a cap mounted on the sealing frame to encapsulate the device region, the cap creating a cavity over the device region;
- and
- spacers located in the device region to support the cap;
- wherein a thickness of the device (TP) is less than a width of a sealing frame (WSF) and the WSF is less than 2 mm.
3 more elements
A device comprising:
- a substrate with a device region;
- a sealing frame surrounding the device region;
- a cap mounted on the sealing frame to encapsulate the device region, the cap creating a cavity over the device region;
- and
- spacers located in the device region to support the cap;
- wherein a thickness of the device (TP) is less than a width of a sealing frame (WSF) and the WSF is less than 2 mm.
3 more elements
A method of forming a device, comprising:
- providing a substrate;
- forming at least one light emitting cell in a cell region on the substrate, wherein the at least one light emitting cell includes at least one electrode and at least one organic functional layer;
- depositing spacer particles onto the substrate;
- forming a sealing frame on the substrate, such that the sealing frame surrounds the cell region;
- and
- mounting a cap on the substrate to encapsulate the cell region such that the sealing frame is between the substrate and the cap and the cap forms a cavity in the cell region;
- wherein a thickness of the cap, the substrate and the cavity is less than a width of the sealing frame.
4 more elements
Dependencies are inferred from the claim text.