Method for patterning oriented materials for organic electronic displays and devices
First Claim
1. A process for making an organic electroluminescent device comprising:
- selectively thermally transferring a transfer layer comprising an oriented organic emissive material from a donor sheet to a receptor substrate comprising a first electrode; and
forming a second electrode so that the oriented organic emissive material is positioned between the first and second electrodes, wherein the device is capable of emitting polarized light when activated.
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Abstract
The present invention provides a method for pattering oriented materials to make organic electronic displays or devices. The method includes selective thermal transfer of an oriented electronically active or emissive material from a thermal transfer donor sheet to a receptor. The method can be used to make organic electroluminescent devices and displays that emit polarized light. The method can also be used to make organic electronic devices with enhanced charge mobility properties. The present invention also provides donor sheets for use with the method, and methods for making donor sheets that include transfer layers having oriented electronically active organic materials.
135 Citations
21 Claims
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1. A process for making an organic electroluminescent device comprising:
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selectively thermally transferring a transfer layer comprising an oriented organic emissive material from a donor sheet to a receptor substrate comprising a first electrode; and
forming a second electrode so that the oriented organic emissive material is positioned between the first and second electrodes, wherein the device is capable of emitting polarized light when activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for making an organic electronic device comprising:
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selectively thermally transferring a transfer layer comprising an oriented electronically active polymer from a donor sheet to a device substrate; and
electrically connecting the oriented electronically active polymer layer on the device substrate to other layers of the organic electronic device to form a completed device.
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11. A method of making a thermal transfer donor sheet comprising providing a donor substrate and light-to-heat conversion layer on the donor substrate and forming a transfer layer adjacent to the light-to-heat conversion layer, the transfer layer comprising an oriented electronically active organic material capable of being selectively thermally transferred from the donor sheet to a proximately located receptor while substantially maintaining the orientation of the oriented electronically active organic material.
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12. A donor sheet comprising:
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a selectively thermally transferable transfer layer comprising an oriented organic emissive material capable of emitting polarized light when suitably disposed in an organic electroluminescent device;
a donor substrate; and
a light-to-heat conversion layer disposed between the substrate and the transfer layer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A donor sheet comprising:
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a substrate;
an alignment layer;
a light-to-heat conversion layer disposed between the substrate and the alignment layer for converting incident imaging radiation into heat; and
a transfer layer comprising an oriented light emitting polymer coated onto the alignment layer and capable of being selectively thermally transferred from the donor sheet to a proximately located receptor.
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Specification