Electrophoretic display with sub relief structure for high contrast ratio and improved shear and/or compression resistance
First Claim
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1. An electrophoretic display comprising (a) a top transparent layer;
- (b) a plurality of isolated cells having well-defined size, shape and aspect ratio, said cells having internal sub relief structures and filled with charged pigment particles dispersed in a dielectric solvent or solvent mixture; and
(c) a bottom layer.
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Abstract
This invention relates to an electrophoretic display comprising isolated cells of well-defined shape, size and aspect ratio which cells have internal sub relief structures and are filled with charged pigment particles dispersed in a dielectric solvent. The display shows an improved contrast ratio and resistance against shear and compression pressures. The display may have the traditional up/down switching mode, an in-plane switching mode or a dual switching mode.
116 Citations
31 Claims
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1. An electrophoretic display comprising
(a) a top transparent layer; -
(b) a plurality of isolated cells having well-defined size, shape and aspect ratio, said cells having internal sub relief structures and filled with charged pigment particles dispersed in a dielectric solvent or solvent mixture; and
(c) a bottom layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification