Electrochromic or electrodeposition display and novel process for their manufacture
First Claim
Patent Images
1. An electrochromic or electrodeposition display comprising a plurality of cells, each of said cells comprises:
- (a) surrounding partition walls, (b) an electrochromic fluid or electrolytic fluid filled therein, and (c) a polymeric sealing layer which encloses the electrochromic fluid or electrolytic fluid within each cell and sealingly adheres to the surface of the partition walls.
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Abstract
The present invention is directed to an improved electrodeposition and an electrochromic display. The display cells formed from microcups are filled with an electrolyte fluid and are individually sealed with a polymeric sealing layer.
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Citations
60 Claims
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1. An electrochromic or electrodeposition display comprising a plurality of cells, each of said cells comprises:
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(a) surrounding partition walls, (b) an electrochromic fluid or electrolytic fluid filled therein, and (c) a polymeric sealing layer which encloses the electrochromic fluid or electrolytic fluid within each cell and sealingly adheres to the surface of the partition walls. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 39, 40, 41, 42, 51, 52, 59)
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22. An electrochromic or electrodeposition display comprising
a) a top electrode plate and a bottom electrode plate, at least one of which is transparent; - and
b) a plurality of cells enclosed between the two electrodes, each of said cells comprising (i) surrounding partition walls, (ii) an electrochromic fluid or electrolytic fluid filled therein, and (iii) a polymeric sealing layer which encloses the electrochromic fluid or electrolytic fluid within each cell and sealingly adheres to the surface of the partition walls. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 47, 48, 49, 50, 60)
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53. A process for the preparation of an electrochromic or electrodeposition display, which process comprises the steps of:
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a) embossing a thermoplastic or thermoset precursor layer with a pre-patterned male mold;
b) hardening the thermoplastics or thermoset precursor layer;
c) releasing the mold from the thermoplastic or thermoset precursor layer;
d) filling the thus-formed array of microcups with an electrochromic or electrodeposition fluid; and
e) sealing the filled microcups.
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54. A process for the preparation of an electrochromic or electrodeposition display, which process comprises:
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a) embossing a thermoplastic or thermoset precursor layer with a pre-patterned male mold;
b) hardening the thermoplastic or thermoset precursor layer;
c) releasing the mold from the thermoplastic or thermoset precursor layer;
d) treating the microcups with an oxidant or staining agent;
e) rinsing the treated microcups with a solvent or an aqueous solution to remove the residual oxidant or staining agent;
f) filling the thus-formed array of microcups with an electrochromic or electrodeposition fluid; and
g) sealing the filled microcups. - View Dependent Claims (55)
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56. A process for the preparation of an electrochromic or electrodeposition display, which process comprises the steps of:
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a) coating a layer of radiation curable composition on a conductor film;
b) imagewise exposing the radiation curable layer;
c) removing the unexposed areas by a developer or solvent to reveal an array of microcups;
d) filling the microcups with an electrochromic or electrodeposition fluid; and
e) sealing the filled microcups.
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57. A process for the preparation of an electrochromic or electrodeposition display, which process comprises:
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a) filling the microcups with an electrochromic or electrodeposition fluid and a dispersion of a polymeric sealing composition which has a specific gravity lower than that of the electrochromic or electrodeposition fluid; and
b) sealing the microcups by curing the polymeric sealing composition during or after it phase separates and forms a supernatant layer above the electrochromic or electrodeposition fluid.
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58. A process for the preparation of an electrochromic or electrodeposition display, which process comprises:
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a) filling the microcups with an electrochromic or electrodeposition fluid;
b) overcoating onto said electrochromic or electrodeposition fluid a polymeric sealing composition which is at least partially immiscible with said electrochromic or electrodeposition fluid and has a specific gravity lower than that of the electrochromic or electrodeposition fluid, and c) sealing the microcups by curing said polymeric sealing composition.
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Specification