Abstract: According to one embodiment of the present invention, a method for color illumination for an image display system includes field sequentially operating an array of emitters to generate a sequence of light beams. Each light beam includes one color. A first light beam of a first color is combined with a second light beam of a second color. The first and second light beams are combined in an optical path to travel concurrently. The combination of the first and second light beams results in a composite color coordinate. The combination of the first and second light beams are directed at a spatial light modulator operable to receive the combination and produce a desired color on a display.

Abstract: Tools for directing a collection of light emitting devices toward pixel locations to make an image are disclosed. A pixel location is a light emitting device target at least twice during a given frame, and each light emitting device in the collection is directed toward at least two different pixel locations during the frame. Adjacent light emitting devices may be directed toward adjacent pixel locations or toward nonadjacent pixel locations.

Abstract: An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circumference, at least one optical member configured to guide the diffused light to the objective illumination region, a movable section configured to drive the optical member so as to be rotatable around the center of the circumference serving as a rotation center, and a lighting control section configured to control a light-emitting timing of the plurality of illuminants. The movable section and the lighting control section operate together such that the quantity of light per unit time of the diffused light guided to the objective illumination region is within a predetermined range.

Abstract: A system for selectively illuminates a light source that illuminates a power indicator of a video apparatus when the indicator distracts a viewer. The power button illumination is selectively set to be extinguished or illuminated when the video apparatus is powered on by means of an on-screen menu as an example. Extinguishing the power button light source does not affect the ability of the indicator to become illuminated to provide information to a viewer regarding the operating status of the video apparatus such as when a TV projection lamp has failed.

Abstract: An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circumference, at least one optical member configured to guide the diffused light to the objective illumination region, a movable section configured to drive the optical member so as to be rotatable around the center of the circumference serving as a rotation center, and a lighting control section configured to control a light-emitting timing of the plurality of illuminants. The movable section and the lighting control section operate together such that the quantity of light per unit time of the diffused light guided to the objective illumination region is within a predetermined range.

Abstract: A collimator is compact and uses power efficient light emitting diodes as the illumination source to generate a test image in collimated space. The collimator provides a test image across a wide field of view, which is useful for calibration of optical devices that have a wide field of regard. An optical projection system in the collimator utilizes an array of light emitting diodes, whose light is converged by a Fresnel lens, through a holographic diffuser plate, onto a target plate bearing the test pattern to be projected out into collimated space through a converging lens. An alignment structure provides translation of the target plate along the main axis of the collimator and provides rotational freedom about two axes (vertical and horizontal) via a gimbal structure mounted on the translation mechanism.

Abstract: A projection type image display apparatus includes an electroluminescence element which has a plurality of pixels that can each emit modulated light, a projection optical system which projects the light emitted from each of the pixels in the electroluminescence element onto an object to display an image, and a sensor which detects brightness of ambient light that illuminates the object. A controller controls brightness of the light emitted from the electroluminescence element based on the brightness of the ambient light.

Abstract: An illumination apparatus which illuminates a portion to be illuminated with light from a light source has a plurality of light emitting members constituting the light source, a driving circuit which drives the respective light emitting members, a condenser optical system which condenses an emitted light from the light emitting member drove by the driving circuit onto the portion to be illuminated, a light control member which performs change of a light path of the light from the light emitting member to illuminate the portion to be illuminated and/or movement of the light emitting member, a movable section which operates the light control member in a predetermined period, and a light selection control section which controls the movable section and/or driving circuit so as to select the light to illuminate the portion to be illuminated from the lights of the plurality of light emitting members.

Abstract: An image display, includes a substrate; a light emitter formed on the substrate; and a photo-sensor formed on the substrate and optically coupled directly to the light emitter.

Abstract: The present solution relates to a 2D/3D data projector, which comprises: A data projector, the data projector comprising: at least one micro display having an image to be projected, at least one source unit comprising at least one light source chip and at least one beam forming component, each beam forming component comprising at least one diffractive element, and each source unit being designed to preserve etendue as far as possible, to minimize photon loss, to provide a desired projection shape and a uniform illumination onto the micro display, and a focusing optical unit for projecting the image of the micro display on a target.

Abstract: A projection apparatus that includes a light source optically coupled to an integrating tunnel to output light into the integrating tunnel through a first and a second medium from a direction nonparallel to the output direction of the integrating tunnel. The first and second mediums having different indices of refraction to facilitate reflection of the output light from the light source off a reflective surface of the integrating tunnel and propagating the reflected light substantially towards an output end of the integrating tunnel.

Abstract: A device for subfield coding a large-screen display generates a digital value for a picture element of the display, and determines a first number and a second number of subfields of a predetermined total number of subfields from the digital value, for which determined subfields the picture element emits radiation. In order to improve the dynamic range while maintaining the maximally obtainable brightness, the first number of subfields each have a different on-period during which the picture element emits radiation, and the second number of each have a same on-period during which the picture element emits radiation.

Abstract: An illumination apparatus which illuminates a portion to be illuminated with light from a light source comprises a plurality of light emitting members constituting the light source, a driving circuit which drives the respective light emitting members, a condenser optical system which condenses an emitted light from the light emitting member drove by the driving circuit onto the portion to be illuminated, a light control member which performs change of a light path of the light from the light emitting member to illuminate the portion to be illuminated and/or movement of the light emitting member, a movable section which operates the light control member in a predetermined period, and a light selection control section which controls the movable section and/or driving circuit so as to select the light to illuminate the portion to be illuminated from the lights of the plurality of light emitting members.

Abstract: A projection-type display apparatus including a light source, an integrator whose input plane receives a light emitted from the light source and whose output plane serves as a surface illuminant, an image forming device modulating an incident linearly-polarized light beam to form an image in accordance with a video signal, a polarization-conversion device converting a uniform light beam exiting from the integrator into a linearly-polarized light beam to be applied to the image forming device, and a projection device projecting the image formed by the image forming device. The light source is constituted by a light emitting diode.

Abstract: A video/audio system for delivering video and audio information, such as news and advertisements, and entertainment to patrons and customers of a petroleum station having a LED visual display and adjacent audio speakers. The LED video display is controlled by a light sensor to vary the brightness of the screen on existing light conditions, such as at night, at bright sunlight conditions, and critical conditions between night and bright sunlight. An audio microphone detects ambient sound levels at the site to control an amplifier and maintain audio output at a predetermined level above ambient noise. The LED screen is optimally arranged to seen by a majority of the customers at the gasoline pumps.

Abstract: A power-saving method with integrated photodiode light source. This device has a circuit board with a plurality of red, green and blue photodiodes as the device's light source. Additionally, a light control circuit is used to control light beam from the light source illuminating a reflector and then reflecting to a reflective display panel in order to reflect the light beam and generate an image. Thus, a projection module can project the image on a viewing plate. As cited, the inventive device includes: a light control circuit, a light source module, a polarizing beam splitter (PBS), a reflective display panel and a projection module.

Abstract: The addition of a variety of additives to a soluble electroluminescent polymer in solution is used to improve the printability and performance of screen printed light-emitting polymer-based devices. Examples of such additives include transparent polymers, gel-retarders, high viscosity liquids, organic and inorganic salts, and oxide nanoparticles. The additives are used to control the viscosity of the electroluminescent polymer ink, to decrease the solvent evaporation rate, and to improve the ink consistency and working time. In addition, these additives can improve the charge injection and power efficiency of light emitting devices manufactured from the screen printable electroluminescent polymer ink.

Abstract: An improved remote control for interactive televisions is disclosed. The conventional remote control is improved by adding a light-scope as a remote-pointing device for defining an aiming point on the television screen. The light-scope consists of a photo detector and a lens system that defines a very narrow filed of view. An LED, driven by an electric signal converted from the light signal entering the light-scope, is used to create a communicating light signal. The communicating light signal, which is to some extent a replica of the light emitted from the aiming point, is sent back to the television for determine the aiming point.

Abstract: A color picture display apparatus employs an array of light-emitting diodes or other light-emitting elements emitting different colors. A television signal is converted to monochromatic signals of the different colors. A color converter modifies the monochromatic signals, thereby changing the displayed hues to match the hues that would be displayed on a television screen, to compensate for ambient lighting conditions, or to achieve other desired effects. If each picture element has only a single light-emitting element, the modification preferably avoids unlit gaps in monochromatic areas of the displayed picture.

Abstract: A compact display assembly includes a flexible display screen such as a passive LCD screen or an OLED display screen. Printed circuit boards including driving circuitry for the display screen are mounted at its rear in a configuration defining a longitudinal region of the screen about which it may be folded or curved over on itself to a compact configuration. The assembly may be included in electronic computational devices such as laptop computers, electronic books and the like.

Abstract: A substantially flat television display comprises, in accordance with the present invention, a plurality of superluminescent or laser diodes which are mounted to a substrate or carrier for spacing in a planar array. A protective sheet covers the diodes and is connected to the substrate or carrier, while energization componentry is operatively connected to the diodes for energizing the diodes in accordance with an incoming video signal to reproduce an image embodied in the video signal. In a color television or video display, the superluminescent or laser diodes are tuned to different frequency ranges, so as to reproduce the image in color.

Abstract: A fiber optic display sign has an optical system with enhanced light efficiency so that the display system is suitable for outdoor use. A number of fiber optics have light receiving ends arranged in a compact bundle for receiving an image from an image generator, the fiber optics coupling the image to the output ends thereof for display. An array of lenses is positioned adjacent the output ends of the fiber optics for directing or aiming the light from the fiber optics to control the viewing angle of the image displayed. The array of lenses may be fixed with respect to the output ends of the fiber optics or the lens array may be movable with respect thereto so as to vary the viewing angle. The image generator employs a light source formed of a densely packed array of white light emitting diodes to provide enhanced brightness.