Transflective electrophoretic display
First Claim
Patent Images
1. An electrophoretic display comprising(a) a top transparent layer;
- (b) a plurality of cells, said cells are(i) filled with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture;
(ii) sealed with a polymeric sealing layer, wherein said polymeric sealing layer is formed from a sealing composition having a specific gravity lower than that of said charged pigment particles and said dielectric solvent or solvent mixture; and
(iii) separated by light transmissive side walls;
(c) a bottom electrode plate; and
(d) a backlight underneath the bottom electrode plate.
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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 are filled with charged pigment particles dispersed in a solvent, a backlight and optionally a background layer. The display may have the traditional up/down switching mode, an in-plane switching mode or a dual switching mode.
200 Citations
44 Claims
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1. An electrophoretic display comprising
(a) a top transparent layer; -
(b) a plurality of cells, said cells are (i) filled with an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture; (ii) sealed with a polymeric sealing layer, wherein said polymeric sealing layer is formed from a sealing composition having a specific gravity lower than that of said charged pigment particles and said dielectric solvent or solvent mixture; and (iii) separated by light transmissive side walls; (c) a bottom electrode plate; and (d) a backlight underneath the bottom electrode plate. - 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, 41, 42, 43, 44)
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Specification