Indicator device with electric control of displacement of a fluid
First Claim
1. A device providing electric control of displacement of a fluid which performs a display function, wherein said device comprises two confinement plates which define two internal faces and which are a small distance from each other to form a first volume which is shared by at least two immiscible fluids having different dielectric permittivities, a first fluid having a globular structure and a second volume and immersed in the second fluid, an electric generator connected to a plurality of electrode pairs where the electrodes of each pair are disposed opposite each other on the internal faces of said confinement plates, for inducing an electric field gradient so as to cause one of the two fluids having a higher permittivity to converge toward those regions of said first volume which are subjected to said electric field,wherein at least two of said electrode pairs constrict said second volume of said first fluid for the purpose of splitting said fluid, said electrode pairs being adapted to cooperate with said electric generator for splitting said second volume.
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Accused Products
Abstract
The displacement of a fluid is controlled electrically in a device employed primarily for storage and display of digital data. The device comprises a capillary space delimited by two confinement plates, the internal faces of which are fitted with electrodes connected to an electric generator. The capillary space is shared by two immiscible fluids and at least one displaceable fluid marker is created within the capillary space in the form of a globule of the fluid which has the highest dielectric permittivity.
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Citations
19 Claims
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1. A device providing electric control of displacement of a fluid which performs a display function, wherein said device comprises two confinement plates which define two internal faces and which are a small distance from each other to form a first volume which is shared by at least two immiscible fluids having different dielectric permittivities, a first fluid having a globular structure and a second volume and immersed in the second fluid, an electric generator connected to a plurality of electrode pairs where the electrodes of each pair are disposed opposite each other on the internal faces of said confinement plates, for inducing an electric field gradient so as to cause one of the two fluids having a higher permittivity to converge toward those regions of said first volume which are subjected to said electric field,
wherein at least two of said electrode pairs constrict said second volume of said first fluid for the purpose of splitting said fluid, said electrode pairs being adapted to cooperate with said electric generator for splitting said second volume.
Specification