Abstract: This invention relates to electrophoretic fluids comprising at least two immiscible liquids and black, white and/or coloured particles and/or dyes, and electrophoretic display devices comprising such fluids.

Abstract: The present invention relates to an electro-rheological fluid comprising particles of at least one inorganic or organic material suspended in a polar liquid crystalline medium, the use of such electro-rheological fluid in an haptic device, an haptic device itself, a method of the production of such haptic device and the use of such haptic device in electro-optical devices.

Abstract: This invention relates to polymer particles comprising monomer units of at least one reactive mesogen, a process for their preparation, the use of these particles for the preparation of optical, electrooptical, electronic, electrochemical, electrophotographic, electrowetting and electrophoretic displays and/or devices and security, cosmetic, decorative, and diagnostic applications, and electrophoretic fluids and displays.

Abstract: The present invention relates to an electro-rheological fluid comprising particles of at least one inorganic or organic material suspended in a polar liquid crystalline medium, the use of such electro-rheological fluid in an haptic device, an haptic device itself, a method of the production of such haptic device and the use of such haptic device in electro-optical devices.

Abstract: Semi-retro-reflective, semi-specular, specular and etched glass displays are equipped with a dielectric layer. This leads to displays with enhanced brightness, improved electrophoretic particle responsiveness, improved grayscale and chemical stability in the presence of an electrophoretic medium, electric field and high temperatures. In one embodiment, a reflective image display comprises a front sheet further comprising a plurality of hemispherical protrusions, front and rear electrodes, a dielectric layer on the surface of at least one electrode, liquid medium with electrophoretically mobile particles, color filter array layer and a directional front light system.

Abstract: This invention relates to polymer particles comprising monomer units of at least one reactive mesogen, a process for their preparation, the use of these particles for the preparation of optical, electrooptical, electronic, electrochemical, electrophotographic, electrowetting and electrophoretic displays and/or devices and security, cosmetic, decorative, and diagnostic applications, and electrophoretic fluids and displays.

Abstract: This invention relates to polymer particles with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, electrophoretic displays comprising such particle, and new polymerisable dyes.

Abstract: This invention relates to polymer particles comprising monomer units of at least one reactive mesogen, a process for their preparation, the use of these particles for the preparation of optical, electrooptical, electronic, electrochemical, electrophotographic, electrowetting and electrophoretic displays and/or devices and security, cosmetic, decorative, and diagnostic applications, and electrophoretic fluids and displays.

Abstract: This invention relates to white reflective polymer particles prepared by a reverse emulsion solvent removal process, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids.

Abstract: This invention relates to polymer particles comprising monomer units of at least one reactive mesogen, a process for their preparation, the use of these particles for the preparation of optical, electrooptical, electronic, electrochemical, electrophotographic, electrowetting and electrophoretic displays and/or devices and security, cosmetic, decorative, and diagnostic applications, and electrophoretic fluids and displays.

Abstract: A material blender and method for blending a plurality of ingredient materials to make a single heterogeneous material. The material blender may comprise a blending apparatus, a control system, and a pneumatic delivery system. The pneumatic delivery system may comprise a plurality of conduits each provided with a pneumatic flow therethrough to pneumatically convey one of the ingredient materials to the blending apparatus. The delivery system may also comprise one or more valves configured to independently vary the pneumatic flow through one of the conduits. The control system may be configured to provide signals to the valves, commanding the valves to oscillate between varying degrees of openness based on a desired percentage or ratio of each of the ingredient materials to be output to the blending apparatus. The control system may calculate signals to send to the valves based on stored calibration information.

Abstract: This invention relates to polymer particles with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, electrophoretic displays comprising such particle, and new polymerisable dyes.

Abstract: A material blender and method for blending a plurality of ingredient materials to make a single heterogeneous material. The material blender may comprise a blending apparatus, a control system, and a pneumatic delivery system. The pneumatic delivery system may comprise a plurality of conduits each provided with a pneumatic flow therethrough to pneumatically convey one of the ingredient materials to the blending apparatus. The delivery system may also comprise one or more valves configured to independently vary the pneumatic flow through one of the conduits. The control system may be configured to provide signals to the valves, commanding the valves to oscillate between varying degrees of openness based on a desired percentage or ratio of each of the ingredient materials to be output to the blending apparatus. The control system may calculate signals to send to the valves based on stored calibration information.

Abstract: This invention relates to white reflective polymer particles prepared by a reverse emulsion solvent removal process, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids.

Abstract: An optical filter is provided for suppressing unwanted reflections of background light when used with a display device such as a cathode ray tube or an electroluminescent screen, or in optical communication or surveillance. The filter has multiple thin layers including a first series of layers for suppressing reflections from its outer surface and a second series of layers constituting a bandpass interference filter. The first series of layers is arranged to suppress reflections over a broad wavelength band while the second series of layers allows transmittance over a relatively narrow wavelength passband within the broad wavelength band, resulting in improved contrast when the display is used in situations of high background light.