Electrophoretic display and process for its manufacture
First Claim
Patent Images
1. A process for forming an electrophoretic display, which process comprisesa) forming a plurality of cells;
- b) filling said cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and
c) sealing said filled cells with a sealing layer which is hardened in situ;
and said process is carried out continuously.
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Abstract
This invention relates to an electrophoretic display comprising cells which are filled with charged particles dispersed in a solvent and are individually sealed with a polymeric sealing layer.
189 Citations
35 Claims
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1. A process for forming an electrophoretic display, which process comprises
a) forming a plurality of cells; -
b) filling said cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and c) sealing said filled cells with a sealing layer which is hardened in situ; and said process is carried out continuously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for forming an electrophoretic display, which process comprises
a) forming a plurality of cells; -
b) filling said cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and c) sealing said filled cells with a sealing composition which is immiscible with said electrophoretic fluid and has a specific gravity lower than that of said electrophoretic fluid; and said process is carried out continuously. - View Dependent Claims (11, 12, 24, 25, 26, 27, 28, 29)
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13. A process for forming an electrophoretic display, which process comprises
a) forming a plurality of cells; -
b) filling said cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and c) sealing said filled cells with a sealing layer which is hardened in situ; said process is carried out semi-continuously. - View Dependent Claims (14, 15, 16, 17, 18, 19, 23)
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20. A process for forming an electrophoretic display, which process comprises
a) forming a plurality of cells; -
b) filling said cells with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent; and c) sealing said filled cells with a sealing composition which is immiscible with said electrophoretic fluid and has a specific gravity lower than that of said electrophoretic fluid; and said process is carried out semi-continuously. - View Dependent Claims (21, 22, 30, 31, 32, 33, 34, 35)
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Specification