METHODS FOR DRIVING ELECTROPHORETIC DISPLAYS USING DIELECTROPHORETIC FORCES
First Claim
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1. A method for operating a dielectrophoretic display, the method comprising:
- providing a substrate having walls defining at least one cavity, the cavity having a viewing surface;
a fluid contained within the cavity; and
a plurality of at least one type of particle within the fluid; and
applying to the substrate an electric field effective to cause dielectrophoretic movement of the particles so that the particles occupy only a minor proportion of the viewing surface.
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Abstract
A dielectrophoretic display has a substrate having walls defining a cavity, the cavity having a viewing surface and a side wall inclined to the viewing surface. A fluid is contained within the cavity; and a plurality of particles are present in the fluid. There is applied to the substrate an electric field effective to cause dielectrophoretic movement of the particles so that the particles occupy only a minor proportion of the viewing surface.
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Citations
38 Claims
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1. A method for operating a dielectrophoretic display, the method comprising:
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providing a substrate having walls defining at least one cavity, the cavity having a viewing surface;
a fluid contained within the cavity; and
a plurality of at least one type of particle within the fluid; andapplying to the substrate an electric field effective to cause dielectrophoretic movement of the particles so that the particles occupy only a minor proportion of the viewing surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 32)
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20. A method for operating a display, the method comprising:
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providing a substrate having walls defining at least one cavity, the cavity having a viewing surface;
a fluid contained within the cavity; and
a plurality of at least one type of particle within the fluid; andapplying to the substrate an electric field effective to cause movement of the particles laterally across the viewing surface so that the particles occupy only a minor proportion of the viewing surface. - View Dependent Claims (21, 22, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38)
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Specification