Abstract: An LCD display has a programmable backlight device that produces multiple different color fields from multiple different phosphor elements. The backlight device can be a low resolution FED device. The phosphor is applied by an electrophotographic screening process or direct electrostatic screening process. The FED device can further incorporate a wide gamut phosphor.

Abstract: An LCD display has a programmable backlight device that produces multiple different color fields from multiple different phosphor elements. The backlight device can be a low resolution FED device. The phosphor is applied by an electrophotographic screening process or direct electrostatic screening process. The FED device can further incorporate a wide gamut phosphor.

Abstract: A display comprises a front-end component having a matrix of neutral light valves that defines the resolution of the display. A backlight unit provides backlighting for the front-end component and has a plurality of individual elements grouped into repeat units, wherein the individual elements in the repeat units differ in color and the repeat units have a resolution less than the display resolution. All individual elements in individual repeat units are capable of simultaneously emitting light incident on more than one neutral light valve.

Abstract: A display comprises a front-end component having a matrix of neutral light valves that defines the resolution of the display. A backlight unit provides backlighting for the front-end component and has a plurality of individual elements grouped into repeat units, wherein the individual elements in the repeat units differ in color and the repeat units have a resolution less than the display resolution. All individual elements in individual repeat units are capable of simultaneously emitting light incident on more than one neutral light valve.

Abstract: An LCD display has a programmable backlight device that produces multiple different color fields from multiple different phosphor elements. The backlight device can be a low resolution FED device. The phosphor is applied by an electrophotographic screening process or direct electrostatic screening process. The FED device can further incorporate a wide gamut phosphor.

Abstract: An LCD display has a programmable back-light device that produces multiple different color fields from multiple different phosphor elements. The backlight device can be a low resolution FED device. The phosphor is applied by an electrophotographic screening process or direct electrostatic screening process. The FED device can further incorporate a wide gamut phosphor.

Abstract: A display comprises a front-end component having a matrix of neutral light valves that defines the resolution of the display. A backlight unit provides backlighting for the front-end component and has a plurality of individual elements grouped into repeat units, wherein the individual elements in the repeat units differ in color and the repeat units have a resolution less than the display resolution. All individual elements in individual repeat units are capable of simultaneously emitting light incident on more than one neutral light valve.

Abstract: A display comprises a front-end component having a matrix of neutral light valves that defines the resolution of the display. A backlight unit provides backlighting for the front-end component and has a plurality of individual elements grouped into repeat units, wherein the individual elements in the repeat units differ in color and the repeat units have a resolution less than the display resolution. All individual elements in individual repeat units are capable of simultaneously emitting light incident on more than one neutral light valve.

Abstract: A relatively large field of laminated fluorescent square LSC tiles are interdigitated by long thin bi-facial silicon photovoltaic cells. The laminated fluorescent LSC tiles each comprise a thick clear substrate bonded to a fluorescent dye film with a mirror backing and a protective layer. Incident sunlight is received by the clear substrate's face, and the dye converts that to fluorescent light. The resulting fluorescent light can only escape out the perimeter edges of the clear substrate where the photovoltaic cells are positioned. Each silicon photovoltaic cell receives fluorescent light laterally from the adjacent and opposite edges of the two fluorescent LSC tiles it separates. The collection area of the face of each fluorescent LSC tile is very large compared to the areas of the edges, and so highly concentrated light is provided to relatively small area photovoltaic cells for conversion to electricity.

Abstract: A cathode ray tube (CRT) having a glass envelope is disclosed. The glass envelope is formed of a rectangular faceplate panel and a tubular neck connected thereto by a funnel. An electron gun is positioned in the neck for directing electron beams toward the faceplate panel. A yoke is positioned in the neighborhood of the funnel-to-neck junction. The yoke has windings configured to apply a horizontal deflection yoke field and a vertical deflection yoke field to the beams. At least one magnetic field sensor is located near the glass envelope for sensing an ambient magnetic field environment of the CRT. A controller receives a signal from the magnetic field sensor. Register correction coils are mounted in the vicinity of the neck and are dynamically controlled by the controller to shift the beams.

Abstract: A display comprises a front-end component having a matrix of neutral light valves that defines the resolution of the display. A backlight unit provides backlighting for the front-end component and has a plurality of individual elements grouped into repeat units, wherein the individual elements in the repeat units differ in color and the repeat units have a resolution less than the display resolution. All individual elements in individual repeat units are capable of simultaneously emitting light incident on more than one neutral light valve.

Abstract: A system for correcting a color characteristic of an image displayed in response to a video signal involves processing the video signal for predicting a variation in a physical characteristic of a display device displaying the image, processing the video signal for determining a change in the color characteristic occurring in response to the variation in the physical characteristic, and modifying the video signal for compensating for the change in the color characteristic.

Abstract: A dynamic focus voltage generator is provided for a tensioned focus mask of a cathode ray tube of video display. The tensioned focus mask includes spaced apart strands and spaced apart crosswires separated from the strands. A synchronizing signal at a horizontal deflection frequency is used for generating a dynamic focus voltage component that varies in accordance with a position of an electron beam on a screen of the cathode ray tube. A synchronizing signal at a vertical deflection frequency is used for generating a dynamic focus voltage component that varies in accordance with the position of the electron beam on the screen of the cathode ray tube. The time varying voltage components are combined with a direct current voltage component for producing a dynamic focus voltage between the strands and crosswires.

Abstract: A monitoring apparatus and method for measuring light output gradient of a faceplate panel includes a top plate having a center detector and a plurality of corner detectors mounted along a major surface thereof. Lenses are optically coupled to a respective detector, and radiometers are electrically coupled to a respective detector. A bottom plate spaced apart from the top plate has a plurality of light outputs mounted along a major surface thereof and positioned to be opposite each detector. A light source is optically coupled to each light output through a splitter. A computer is electrically coupled to the light source for receiving feedback therefrom and for controlling the light source. The computer is also electrically coupled to each radiometer for recording data therefrom. During monitoring, a faceplate panel having a matrix applied thereto is accurately positioned between the top and bottom plates such that the center detector is located approximately above the center of the faceplate panel.

Abstract: A monitoring apparatus and method for measuring light output gradient of a faceplate panel includes a top plate having a center detector and a plurality of corner detectors mounted along a major surface thereof. Lenses are optically coupled to a respective detector, and radiometers are electrically coupled to a respective detector. A bottom plate spaced apart from the top plate has a plurality of light outputs mounted along a major surface thereof and positioned to be opposite each detector. A light source is optically coupled to each light output through a splitter. A computer is electrically coupled to the light source for receiving feedback therefrom and for controlling the light source. The computer is also electrically coupled to each radiometer for recording data therefrom.

Abstract: The present invention provides an improved tension mask frame assembly 10 in which mask support members 40 are provided with side walls 42, 46 and a back wall 44 that are held together primarily by means of either tabs formed along an edge of the back wall 48 received into respective apertures 50 in the side wall 42 or by means of a ridge 69 formed in the side wall 62 which abuts the back wall 64.

Abstract: The present invention relates to a cathode ray tube (CRT) having an improved electrical connector. An electrical connector is provided for detachably coupling an electrical lead to the electron gun through the neck of the CRT. The connector has a through passage defined by a diameter greater than the diameter of the neck. The neck is inserted in the passage and the connector is secured to the outer surface of the neck. Adjacent the passage is a plurality of integral resilient leaf springs extending toward the stem at a plurality of circumferentially spaced locations. The leaf spring elements include base elements for terminal engagement and tip ends projecting and bias toward the electrical leads of the electron gun to provide electrical connection to the cathode ray tube. The passage of the connector is preferably defined by an opening in a printed circuit board or other electrical terminal contact from which the leaf springs extend.

Abstract: The present invention provides a tension mask for a cathode-ray tube. The tension mask has an active aperture portion formed by a plurality of parallel strands extending between cantilevers on opposed sides of a mask support frame. The tension mask further comprises border shields mounted over each end of the frame cantilevers, whereby the strand ends are held to the cantilevers in a predetermined spaced-apart relationship. The border shields on opposing sides of the frame extend toward the active aperture portion of the tension mask and is substantially aligned with the screen matrix of the CRT. The tension mask has a lower coefficient of thermal expansion than that of the mask frame, cantilevers, and border shield.

Abstract: The present invention relates to cathode ray tubes and specifically to a cathode ray tube having an improved electrical connector. The tube comprises a faceplate panel and a funnel-shaped back section having a neck containing an electron gun. The neck terminates at a closed end stem through which electrical leads, of the electron gun, extend and terminate at the outer surface of the stem. An electrical connector is provided for detachably coupling an electrical lead to the electron gun. The connector has a through passage defined by a diameter greater than the diameter of the neck. The neck is inserted in the passage and the connector is secured to the outer surface of the neck. Adjacent the passage is a plurality of integral resilient leaf springs extending toward the stem at a plurality of circumferentially spaced locations.

Abstract: The present invention provides a tension mask for a cathode-ray tube. The tension mask has an active aperture portion formed by a plurality of parallel strands extending between cantilevers on opposed sides of a mask support frame. The tension mask further comprises border shields mounted over each end of the frame cantilevers, whereby the strand ends are held to the cantilevers in a predetermined spaced-apart relationship. The border shields on opposing sides of the frame extend toward the active aperture portion of the tension mask and is substantially aligned with the screen matrix of the CRT. The tension mask has a lower coefficient of thermal expansion than that of the mask frame, cantilevers, and border shield.