Abstract: A thin seal liquid crystal display comprises a liquid crystal material sandwiched by first and second metalized substrates and contained by a thin seal. The thin seal is formed by applying a bead of epoxy with minimal edge variation on a metalized substrate and by precisely sawing the metalized substrates and seal of the resulting assembled liquid crystal display to form the thin seal. Electrical edge contacts may be deposited on the display edges to electrically link electrical conductors connected to picture elements of the display and drive circuits located external to the display.

Abstract: A liquid crystal lens assembly that can be used to replace existing color lenses in traffic signals without the need for any special modifications to the traffic signal. The lens assembly utilizes a dichroic liquid crystal mixture that absorbs light when no electric field is applied to the mixture. When an electric field is applied across the liquid crystal mixture by two electrodes, the molecules change their orientation within the mixture and absorb less light, and the signal appears "on". The illumination of the bulb behind the lens assembly is visible to the user. The electric field is energized at the same time that the bulb for the traffic signal is illuminated. A colored transflector positioned in the rearward portion of the lens assembly provides the color for the signal and also acts to reflect light from the front of the lens assembly. Wires for applying the electric field to the electrodes connect directly to the terminal block for the traffic signal.

Abstract: A flat-panel display system and a display method utilizing microprojection techniques whereby each pixel of the display acts as its own micro-projector. The micro-projector utilizes a reversed Schlieren optical arrangement. A flat fiber-optic illuminator and an illumination method provide collimated light for the display. A layer of light scattering material such as polymer dispersed liquid crystal (PDLC) is interposed between the illuminator and the rear-projection screen of the display. The scattering layer, when in a first state, allows the collimated light to pass through openings in an aperture plate that is part of the microprojection display. In a second state, the scattering layer scatters the collimated light. Side and vertical walls of the aperture plate absorb most of the scattered light resulting in a high contrast ratio for the display. The degree of scattering can be controlled to provide for a gray scale for the display.

Abstract: A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

Abstract: A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

Abstract: A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

Abstract: A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

Abstract: A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

Abstract: A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.