Abstract: This invention relates to an electrophoretic display comprising cells of well-defined shape, size and aspect ratio which cells are filled with charged pigment particles dispersed in a solvent, and novel processes for its manufacture.

Abstract: This invention relates to an electrophoretic display comprising a transparent top viewing electrode, a bottom electrode and a plurality of isolated cells having well-defined size, shape and aspect ratio, said cells filled with charged pigment particles dispersed in a dielectric solvent or solvent mixture, and a color filter placed with the top transparent electrode.

Abstract: This invention relates to a novel composition suitable for use in the manufacture of electrophoretic display cells. The mechanical properties of the cells are significantly improved with this composition in which a rubber material is incorporated.

Abstract: This invention relates to an electrophoretic display comprising cells which are filled with charged particles dispersed in a solvent and are individually sealed with a polymeric sealing layer which is an integral part of the display and is curved.

Abstract: The present invention is directed to a display device which includes an array of sealed microcups containing particles of a designated electric and magnetic characteristic suspended in a solvent wherein a surface of a plurality of the sealed microcups constituting a transparent surface. The display device further includes an electromagnetic image writing/drawing pen for manually applying an electromagnetic field on the particles of the designated electric and magnetic characteristic in the microcups to form an image viewable from the transparent surface. More particularly, the particles of the designated electric and magnetic characteristic are charged particles and the writing and drawing pen is an electrical writing/drawing pen.

Abstract: This invention relates to an electrophoretic display comprising cells which are filled with charged particles dispersed in a solvent and are individually sealed with a polymeric sealing layer.

Abstract: A system and method are disclosed for mitigating the effect of induced reverse bias in a passive matrix electrophoretic display. An intermediate biasing phase is performed prior to the driving cycle, the biasing conditions of the intermediate biasing phase being selected so as to break into at least two steps the transition from the bias condition present prior to the driving cycle to the bias condition applied during the driving cycle. Interposing a settle phase subsequent to the driving phase for each scanned row and prior to the driving phase of the next row to be scanned is disclosed. Adding a pre-drive phase prior to scanning to mitigate the effect of induced reverse bias is disclosed. Adding an inline resistor between a driver and an electrode with which the driver is associated is disclosed. Also disclosed is displaying an image in an electrophoretic display by first driving an array of electrophoretic cells to a white displayed state and then driving background areas to a background display state.

Abstract: This application is directed to electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies.

Abstract: An electrophoretic display having at least one holding electrode is disclosed. The display comprises a plurality of electrophoretic cells filled with charged particles dispersed in a dielectric solvent. Each said cell is positioned between a top electrode layer and a bottom electrode layer. The top electrode layer comprises at least one driving electrode positioned over more than one cell. The bottom electrode layer comprises at least one driving electrode positioned under more than one cell. The display further comprises a holding electrode located in the bottom electrode layer. The display may further comprise a colored background located under and visible through the bottom electrode layer.

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.

Abstract: This invention relates to liquid crystal (LC) displays comprising cells of well-defined shape, size and aspect ratio which cells are filled with a liquid crystal composition preferably containing dichroic dye(s), and novel processes for their manufacture.

Abstract: This invention relates to the field of electrophoretic displays. In particular, it relates to processes for the manufacture of multilayer color displays involving imagewise opening and filling display cells with display fluids of different colors. The color displays have improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity.

Abstract: This invention relates to an electrophoretic display comprising cells of well-defined shape, size and aspect ratio which cells are filled with charged pigment particles dispersed in a solvent, and novel processes for its manufacture.

Abstract: This invention relates to liquid crystal (LC) displays comprising cells of well-defined shape, size and aspect ratio which cells are filled with a liquid crystal composition preferably containing dichroic dye(s), and novel processes for their manufacture.

Abstract: An electrophoretic display comprising at least one in-plane gating electrode. The gating electrode(s) provide a gating effect, which raises the effective threshold voltage to prevent the undesired movement of the charged particles in the cells. The design of the invention can be manufactured using low cost materials by efficient processes.

Abstract: The present invention is directed to a display device which includes an array of sealed micro-cups containing particles of a designated electric and magnetic characteristic suspended in a solvent wherein a surface of a plurality of the sealed micro-cups constituting a transparent surface. The display device further includes an electromagnetic image writing/drawing pen for manually applying an electromagnetic filed on the particles of the designated electric and magnetic characteristic in the micro-cups to form an image viewable from the transparent surface. More particularly, the particles of the designated electric and magnetic characteristic are charged particles and the writing and drawing pen is an electrical writing/drawing pen.

Abstract: A process for forming a patterned thin film structure on a substrate is disclosed. A pattern is printed with a material, such as a masking coating or an ink, on the substrate, the pattern being such that, in one embodiment, the desired thin film structures will be formed in the areas where the printed material is not present, i.e., a negative image of thin film structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired thin film structures will be formed in the areas where the printed material is present, i.e., a positive image of the thin film structure is printed. The thin film material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned thin film structures.

Abstract: This invention relates to a novel composition suitable for use in the manufacture of electrophoretic display cells. The mechanical properties of the cells are significantly improved with this composition in which a rubber material is incorporated.

Abstract: A process for forming a patterned thin film structure on a substrate or in-mold decoration film is disclosed. A pattern is printed with a material, such as a masking coating or ink, on the substrate, the pattern being such that, in one embodiment, the desired structures will be formed in the areas where the printed material is not present, i.e., a negative image of thin film structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired thin film structures will be formed in the areas where the printed material is present, i.e., a positive image of the thin film structure is printed. The thin film material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned thin film structure.

Abstract: This invention relates to an electrophoretic display comprising cells of well-defined shape, size and aspect ratio which cells are filled with charged pigment particles dispersed in a solvent, and novel processes for its manufacture.