JP2004527776A5 - - Google Patents

Claims (21)

An electrophoretic display comprising a dielectric fluid and particles suspended in the dielectric fluid, wherein the particles are directly attached to at least one organic group, and the organic group is attached directly to the particle. An electrophoretic display comprising at least one aromatic group and at least one ionic group, an ionizable group, or both, wherein the dielectric fluid and the particles are visually contrasted. The electrophoretic display includes a structure including a plurality of micro-containers, and each of the plurality of micro-containers includes the dielectric fluid and particles suspended in the Ryuden fluid. The electrophoretic display according to claim 1. The electrophoretic display further includes first and second electrodes, at least one of the two electrodes is visually transparent, and the structure is disposed between the two electrodes. The electrophoretic display according to claim 2, wherein the particles move toward one of the two electrodes in the container due to a potential difference between the two electrodes. 2. The electrophoretic display according to claim 1, wherein the particles are pigment particles. 5. The electrophoretic display according to claim 4, wherein the pigment particles are made of carbon. The carbon material includes carbon black, an aggregate including a phase including a carbon phase and a silicon-containing material, an aggregate including a phase including a carbon phase and a metal-containing material, and silicon-coated carbon. 6. An electrophoretic display according to claim 5, wherein the electrophoretic display is black, graphite, glassy carbon, activated charcoal, activated carbon, carbon fiber, or a mixture thereof. 2. The electrophoretic display according to claim 1, wherein the particles are colored pigments. 2. The electrophoretic display according to claim 1, wherein the aromatic group is a phenyl group or a naphthyl group. The ionic group or ionizable group is a sulfonic acid group or a salt thereof, a carboxylic acid group or a salt thereof, an amine group or a salt thereof, a quaternary ammonium group, a quaternary phosphonium group, or a sulfonium group. The electrophoretic display according to claim 1. The electrophoretic display according to claim 1, wherein the ionic group or ionizable group further contains an amphiphilic counter ion. 2. The electrophoretic display according to claim 1, wherein the organic group includes a polymer group. 3. The electrophoretic display according to claim 2, wherein the micro container is discrete and has a diameter of 500 microns or less. An electrophoretic display comprising a dielectric fluid and particles suspended in the dielectric fluid, wherein the particles have a chemical formula: -X-Sp- [NIon] _p At least one organic group of -R is directly attached, wherein X is an aromatic group directly attached to the particle; NIon is a nonionic group; Sp is a spacer group; R is hydrogen, an aromatic group, Or an alkyl group; p is an integer of 1 to 500, and the dielectric fluid and the particles are visually contrasted. An electrophoretic display comprising a dielectric fluid and particles suspended in the dielectric fluid, wherein the particles have a chemical formula: -X-Sp- [A] _p -R has at least one organic group, where X is an aromatic group directly attached to the particle; A is an alkylene group; Sp is a spacer group; R is hydrogen, an aromatic group, or An electrophoretic display, wherein p is an integer of 1 to 500, and the dielectric fluid and the particles visually contrast. An electrophoretic display comprising a dielectric fluid and particles suspended in the dielectric fluid, wherein the particles have a chemical formula: -X-Sp-[-(CH ₂ ) _m ] _p At least one organic group of -R is directly attached, wherein X is an aromatic group directly attached to the particle; Sp is a spacer group; R is a hydrogen, aromatic group, or alkyl group; An electrophoretic display characterized in that an integer of 12; p is an integer of 1 to 500, and the dielectric fluid and the particles visually contrast. An electrophoretic display comprising a dielectric fluid and particles suspended in the dielectric fluid, wherein the particles have at least one organic group of the chemical formula: -X-Sp- [polymer] -R directly Where X is an aromatic group attached directly to the particle; Sp is a spacer group; polymer is a polymer group containing repeating monomer groups; R is hydrogen, an aromatic group, an alkyl group; An electrophoretic display characterized in that the dielectric fluid visually contrasts with the particles. A non-generating display,
a) at least one display element disposed between two electrodes, characterized in that the response to the potential difference between the two electrodes is visually visible;
b) a display voltage element connected to the two electrodes, the display voltage element being characterized in that the potential difference is generated when the display voltage element is deformed,
The display element comprises a plurality of micro-containers, each of the plurality of micro-containers being a dielectric fluid and particles suspended in the dielectric fluid, wherein A particle directly attached with an organic group, the organic group comprising at least one aromatic group directly attached to the particle and at least one ionic group, an ionizable group, or both, and the dielectric A non-generating display characterized in that the fluid and the particles visually contrast. An electrophoretic multicolor display comprising at least two kinds of particles, wherein at least one kind of particles is directly attached with a first organic group, and the first organic group is directly attached to the particle. At least one aromatic group attached and at least one ionic group, an ionizable group, or both, and the other type of particle has a second organic group attached to the two types of particles Electrophoretic mobility of the electrophoretic multicolor display, characterized in that there is almost no overlap. 19. The electrophoretic multicolor display according to claim 18, wherein the first organic group includes at least one ionic group, an ionizable group, or both. 20. The electrophoretic multicolor display of claim 19, wherein the second organic group includes at least one ionic group, an ionizable group, or both. The particles further include at least a third type particle, and the third type particle is directly attached with a third organic group, and the electrophoretic mobility of the particle is the same as that of the first type particle and the first type particle. The electrophoretic multicolor display according to claim 18, wherein the electrophoretic mobility does not substantially overlap with the electrophoretic mobility of the second particles.