Electrophoretic display with in-plane switching
First Claim
1. An electrophoretic display comprising (1) isolated electrophoretic cells formed from micro cups of well-defined size, shape and aspect ratio wherein said microcups are filled with an electrophoretic composition and the filled microcups are sealed with a sealing layer formed from a sealing composition having a specific gravity lower than that of the electrophoretic composition, and (2) an in-plane switching mode.
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Accused Products
Abstract
The present invention relates to an improved EPD which comprises the in plane switching mode. More specifically, the EPD of the present invention comprises isolated cells formed from microcups of well defined size, shape and aspect ratio and the movement of the particles in the cells is controlled by the in-plane switching mode. The EPD of the present invention may be produced in a continuous manufacturing process, and the display gives improved color saturation.
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Citations
74 Claims
- 1. An electrophoretic display comprising (1) isolated electrophoretic cells formed from micro cups of well-defined size, shape and aspect ratio wherein said microcups are filled with an electrophoretic composition and the filled microcups are sealed with a sealing layer formed from a sealing composition having a specific gravity lower than that of the electrophoretic composition, and (2) an in-plane switching mode.
- 9. An electrophoretic display comprising isolated cells formed from microcups of well-defined size, shape and aspect ratio wherein said microcups are filled with an electrophoretic composition comprising charged particles dispersed in a dielectric solvent or solvent mixture and the filled microcups are sealed with a sealing layer formed from a sealing composition having a specific gravity lower than that of the electrophoretic composition and each of said isolated cells comprises a transparent viewing layer on one side and a layer comprising one common electrode and an in-plane electrode on the opposite side.
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36. A process for the manufacture of an electrophoretic display having isolated cells formed from microcups having well defined size, shape and aspect ratio, said process comprises
a) forming a layer by coating a radiation curable material over a transparent insulator substrate; -
b) forming microcups on the radiation curable material by microembossing or imagewise exposure to radiation;
c) filling the microcups with an electrophoretic composition;
d) sealing the microcups with a sealing composition having a specific gravity lower than that of the electrophoretic composition; and
e) laminating the sealed microcups with a substrate comprising one common electrode and an in-plane electrode over each of said sealed microcups. - View Dependent Claims (37, 40, 42, 43, 44, 45, 50, 51, 52, 53, 69, 70)
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38. A process for the manufacture of an electrophoretic display having isolated cells formed from microcups having well defined size, shape and aspect ratio, said process comprises
a) forming a layer by coating a radiation curable material over a substrate comprising common electrodes and in-plane electrode; -
b) forming microcups on the radiation curable material by microembossing or imagewise exposure to radiation, whereby each of said microcups is on the substrate comprising one common electrode and an in-plane electrode;
c) filling the microcups with an electrophoretic composition;
d) sealing the microcups with a sealing composition having a specific gravity lower than that of the electrophoretic composition; and
e) laminating the sealed microcups with a transparent insulator substrate. - View Dependent Claims (39, 41, 46, 47, 48, 49, 54, 55, 56, 57, 71, 72)
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Specification