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 comprising an electrode plate;
- (b) a plurality of cells, said cells (i) are filled with an electrophoretic fluid comprising pigment particles which carry the same charge and are of the same color dispersed in a dielectric solvent or solvent mixture, (ii) have a background and (iii) some or all of said cells have internal sub relief structures; and
(c) a bottom layer comprising an electrode plate; and
said electrophoretic display has a dual switching mode.
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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.
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Citations
40 Claims
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1. An electrophoretic display comprising
(a) a top transparent layer comprising an electrode plate; -
(b) a plurality of cells, said cells (i) are filled with an electrophoretic fluid comprising pigment particles which carry the same charge and are of the same color dispersed in a dielectric solvent or solvent mixture, (ii) have a background and (iii) some or all of said cells have internal sub relief structures; and
(c) a bottom layer comprising an electrode plate; and
said electrophoretic display has a dual switching mode.- 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, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification