摘要:
The invention is directed to methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm into at least one electrode protecting layer of the display.
摘要:
The invention relates to a display having improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity and methods for its manufacture.
摘要:
The invention is directed to compositions and methods for improving the physicomechanical and electro-optical properties of an electrophoretic or liquid crystal display and also to semi-finished or finished display panels with improved physicomechanical properties.
摘要:
This application is directed to electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies.
摘要:
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.
摘要:
This application is directed to electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies.
摘要:
This invention relates to an electrophoretic display or a liquid crystal display and novel processes for its manufacture. The electrophoretic display (EPD) of the present invention comprises microcups of well-defined shape, size and aspect ratio and the microcups are filled with charged pigment particles dispersed in an optically contrasting dielectric solvent. The liquid crystal display (LCD) of this invention comprises well-defined microcups filled with at least a liquid crystal composition having its ordinary refractive index matched to that of the isotropic cup material. A novel roll-to-roll process and apparatus of the invention permits the display manufacture to be carried out continuously by a synchronized photo-lithographic process. The synchronized roll-to-roll process and apparatus permits a pre-patterned photomask, formed as a continuous loop, to be rolled in a synchronized motion in close parallel alignment to a web which has been pre-coated with a radiation sensitive material, so as to maintain image alignment during exposure to a radiation source. The radiation sensitive material may be a radiation curable material, in which the exposed and cured portions form the microcup structure. In an additional process step, the radiation sensitive material may be a positively working photoresist which temporarily seals the microcups. Exposure of a selected subset of the microcups via the photomask image permits selective re-opening, filling and sealing of the microcup subset. Repetition with additional colors permits the continuous assembly of a multicolor EPD or LCD display.
摘要:
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.
摘要:
The invention is directed to methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm into at least one electrode protecting layer of the display.
摘要:
This application is directed to processes for preparing electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies. The semi-finished display panel comprises an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.