Electro-optic displays, and materials for use therein
First Claim
Patent Images
1. An electro-optic display comprising:
- a layer of solid electro-optic material capable of changing at least one optical characteristic upon application of an electric field thereto;
a backplane comprising at least one electrode arranged to apply an electric field to the layer of electro-optic material; and
an adhesive layer disposed between the layer of electro-optic material and the backplane and adhesively securing the layer of electro-optic material to the backplane,the adhesive layer comprising a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
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Abstract
An electro-optic display comprises a layer of solid electro-optic material; a backplane comprising at least one electrode; and an adhesive layer disposed between the layer of electro-optic material and the backplane and adhesively securing the layer of electro-optic material to the backplane, the adhesive layer comprising a thermally-activated cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid. The cross-linking agent reduces void growth when the display is subjected to temperature changes.
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Citations
31 Claims
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1. An electro-optic display comprising:
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a layer of solid electro-optic material capable of changing at least one optical characteristic upon application of an electric field thereto; a backplane comprising at least one electrode arranged to apply an electric field to the layer of electro-optic material; and an adhesive layer disposed between the layer of electro-optic material and the backplane and adhesively securing the layer of electro-optic material to the backplane, the adhesive layer comprising a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A process for producing an electro-optic display, the process comprising:
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providing an assembly comprising a layer of solid electro-optic material capable of changing at least one optical characteristic upon application of an electric field thereto;
a backplane comprising at least one electrode arranged to apply an electric field to the layer of electro-optic material; and
an adhesive layer disposed between the layer of electro-optic material and the backplane and adhesively securing the layer of electro-optic material to the backplane, the adhesive layer comprising a thermally-activated cross-linking agent capable of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid; andexposing the adhesive layer to a temperature sufficient to activate the cross-linking agent, thereby cross-linking the adhesive layer.
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15. An electro-optic display comprising:
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a layer of solid electro-optic material capable of changing at least one optical characteristic upon application of an electric field thereto; a backplane comprising at least one electrode arranged to apply an electric field to the layer of electro-optic material; and an adhesive layer disposed between the layer of electro-optic material and the backplane and adhesively securing the layer of electro-optic material to the backplane, the adhesive layer having been cross-linked by a thermally-activated cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
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16. An article of manufacture comprising in order:
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a light-transmissive electrically-conductive layer; a layer of a solid electro-optic medium in electrical contact with the electrically-conductive layer; an adhesive layer; and a release sheet, the adhesive layer comprising a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
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17. An article of manufacture comprising:
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a layer of a solid electro-optic medium having first and second surfaces on opposed sides thereof, a first adhesive layer on the first surface of the layer of solid electro-optic medium; a release sheet disposed on the opposed side of the first adhesive layer from the layer of solid electro-optic medium; and a second adhesive layer on the second surface of the layer of solid electro-optic medium, wherein at least one of the first and second adhesive layers comprises a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer in which it is present, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
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18. An article of manufacture comprising, in order:
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a release sheet; a layer of a solid electro-optic medium; an adhesive layer; and at least one of a light-transmissive protective layer and a light-transmissive electrically-conductive layer, the adhesive layer comprising a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
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- 19. An adhesive composition comprising a polyurethane and a thermal cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the polyurethane, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
- 26. A laminate structure comprising first and second layers of solid glass, metal or plastic, and an adhesive layer disposed between the first and second layers and securing the first and second layers to each other, wherein the adhesive layer comprises the adhesive layer comprising a thermally-activated cross-linking agent capable, upon exposure to an activation temperature, of cross-linking the adhesive layer, the cross-linking agent comprising an epoxidized vegetable oil fatty acid or an epoxidized ester of such a fatty acid.
Specification