ELECTROPHORETIC DISPLAY AND PROCESS FOR ITS MANUFACTURE
First Claim
Patent Images
1. A process for forming an electrophoretic display, comprising the steps of:
- a) filling display cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and
b) sealing the filled display cells by solvent evaporation of a sealing composition while the sealing composition is on top of said electrophoretic fluid.
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Abstract
This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
103 Citations
12 Claims
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1. A process for forming an electrophoretic display, comprising the steps of:
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a) filling display cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and b) sealing the filled display cells by solvent evaporation of a sealing composition while the sealing composition is on top of said electrophoretic fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process for forming an electrophoretic display, comprising the steps of:
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a) coating a layer of a thermoplastic or thermoset precursor on a conductor film; b) embossing the thermoplastic or thermoset precursor layer with a male mold to form an array of display cells; c) filling the display cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and d) sealing the filled display cells by solvent evaporation of a sealing composition while the sealing composition is on top of said electrophoretic fluid.
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12. A process for forming an electrophoretic display, comprising the steps of:
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a) coating a layer of a radiation curable material on a conductor film; b) imagewise exposing the radiation curable material and removing the unexposed radiation curable material to form an array of display cells; c) filling the display cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and d) sealing the filled display cells by solvent evaporation of a sealing composition while the sealing composition is on top of said electrophoretic fluid.
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Specification