Abstract: A surface-discharge type PDP includes plural main electrode pairs formed of first and second sustain electrodes arranged on a first substrate. Each pair extends along a line direction, and the first and second sustain electrodes are in parallel and adjacent to each other. Plural address electrodes arranged on a second substrate opposing the first substrate via a discharge space, each extending along a row direction, a matrix corresponding to a screen to be displayed is formed with the main electrodes and address electrodes, the address electrodes are othogonal to the main electrodes, each of the address electrode is divided into, for example two partial address electrodes separated from each other by a border line located between adjacent main electrode pairs, whereby the screen is divided into two partial screens, wherein a first clearance between the partial address electrodes is substantially larger than a second clearance between main electrode pair adjacent across the border line.

Abstract: Electroluminescence color display screen with matrix picture elements (pixels), the display screen comprising a system of single layers applied on top of and partially next to one another, the layer system comprising an insulating, optically at least translucent base layer, a conductive, optically at least translucent base electrode, a patterned electrically insulating intermediate layer, if necessary, one or several color conversion layers applied in form of a matrix and, if necessary, one or several index matching layers, wherein the base electrode is deposited as a continuous layer upon the entire area of the base layer, wherein the insulating intermediate layer encloses and projects past pixel areas made of the organic electroluminescence layer and arranged to form a matrix, and wherein the top electrode applied on top of each pixel area extends partially across the adjacent lattice wall.

Abstract: The low pressure sodium discharge lamp has a discharge vessel (1) having pinch seals (2) through which current conductors (4) extend towards electrodes (3) inside the discharge vessel (1). The current conductors (4) each have a first glass coating (5), which extends from inside a pinch seal (2) into the discharge vessel (1) and a second lime glass coating (6) abutting the first (5) and extending to outside the discharge vessel (1). A new first sodium resistant glass coating (5), which is substantially devoid of borate, is defined.

Abstract: The present invention provides a cathode-ray tube provided with an electron gun capable of emitting electron beams of vertically elongate cross section.A beam control electrode (G2) is fabricated by forming beam passage holes (22R, 22G, 22B) in thin portions (20R, 20G, 20B) of a reduced thickness of an electrode plate (18), and forming excess metal relieving slots (40R to 45B) on the opposite sides of the beam passage holes (22R, 22G, 22B), respectively. An electron gun employing the beam control electrode (G2) is capable of automatically correcting the cross section of beams so that the beams form substantially circular spots in the periphery of a screen. Thus, the deterioration of picture quality attributable to the distortion of the cross section of the beams can be avoided and pictures can be displayed in an improved picture quality.

Abstract: A light emitting phosphor having improved luminance is incorporated into an ACTFEL device having front and rear electrode sets, a pair of insulators sandwiched between the front and rear electrode sets, and a thin film electroluminescent laminar stack which includes a phosphor layer having the formula M.sup.II S:D,H,F where M.sup.II is taken from the group calcium, strontium, barium, and magnesium, S=sulfur, D is taken from the group copper, lead, gold, silver, magnesium, antimony, bismuth and arsenic, H is taken from the group fluorine, chlorine, bromine, and iodine, and F is taken from the group gallium, indium, aluminum, germanium, silicon, lanthanum, scandium, and yttrium. Deep blue and green chromaticity phosphors may be obtained through selection of multiple co-dopants and adjusting their relative concentrations.

Abstract: A main lens portion in a three beam in-line type color cathode ray tube includes spaced-apart tube-like electrodes having elongated openings at facing ends thereof, and plate electrodes disposed therein. At least one of electron beam apertures in the two plate electrodes is a barrel-like aperture. The barrel-like aperture is defined by two arcs extending in the direction perpendicular to the inline direction and two straight lines extending in the inline direction. The apertures for the side electron beams in the plate electrode can be replaced with cutouts therein. Each of the cutouts is defined by two straight lines extending in the inline direction and an arc convexly curved toward the tube axis and extending in the direction perpendicular to the inline direction.

Abstract: In an electron tube grounding device, an image display unit includes an earth plate for grounding an electron tube, and a degauss coil for magnetic erasing, which is improved to prevent the deformation of the earth plate for grounding a chassis frame which shields the electron tube and its periphery. The damage of the degauss coil can be caused by the assembling of the electron tube and the chassis frame. The electron tube grounding device includes an electrontube, a chassis frame for surrounding the electron tube, and an earth plate for grounding the chassis frame and the electron tube. The chassis frame includes a penetration aperture formed on one side thereof, and a rail means protrudently formed on the back portion of and outside the penetration aperture where the earth plate is inserted to be fixed.

Abstract: A cathode-ray tube includes a tension mask attached to a rectangular support frame assembly that has two long sides paralleling a central major axis thereof and two short sides paralleling a central minor axis thereof. The frame assembly includes two first members, having oppositely disposed ends, paralleling the major axis, and two resilient U-shaped second members, having a first leg and a second leg attached to the oppositely disposed ends of the first members, paralleling the minor axis. Each of the first members has a compliant portion and a base portion. The mask is attached to the distal ends of the compliant portion. A detensioning rod assembly is disposed between the first and second legs of each of the second members to facilitate varying the tension of the mask.

Abstract: There is provided a shadow mask assembly for a color cathode ray tube (CRT), including a mask plate through which a multitude of electron beam passing holes are formed, a rim portion which extends from the edges of the mask plate and has a smaller radius of curvature than the radius of curvature of the mask plate, a skirt portion which extends perpendicularly from at least one of the longer and shorter edges of the rim portion, and a frame which is combined with the skirt portion and supports the skirt portion.

Abstract: An image display apparatus which is subjected to getter flashing during manufacturing, for the purpose of increasing the degree of vacuum in the air-tight container thereof, is provided with a getter scattering prevention member comprised of a plurality of getter scattering prevention walls. The getter scattering prevention walls prevent getter material from scattering to the image display portion of the image display apparatus, while allowing for smooth conductance of gas in the air-tight container during evacuation. Thus, evacuation by the getter can be further improved by increasing the area to which getter adheres to, deterioration of the image quality can be prevented by not allowing getter to adhere to the image display portion, the air-tight container can be evacuated in a shorter time, irregularities in brightness of the screen due to uneven pressure within the display portion can be done away with, and a higher degree of vacuum can be attained.

Abstract: A neon lamp providing white light is disclosed. The lamp is operated to stimulate the neon to emit both ultraviolet light, and visible red light. A phosphor coating responsive to the ultraviolet light produces a complementary green blue light that in combination with the neon red light yields a white light. The lamp is small, efficient, and not subject to the effects of cold that cause mercury based fluorescent lamps to operate poor in cold conditions typical of out of door operation.

Abstract: An EL display comprises a transparent substrate and a first electrode layer made of a transparent material disposed on the transparent substrate. A luminescent layer, a first insulation layer and a second electrode layer are disposed successively on a surface of the first electrode layer except for a preselected surface portion thereof defining an exposed portion. A second insulation layer is disposed on a surface of the second electrode layer except for a preselected surface portion thereof defining an exposed portion. A first contact layer is disposed on the exposed portion of the second electrode layer for electrical connection to an external driving control circuit. A second contact layer is disposed on the second insulation layer for electrical connection to the exposed portion of the first electrode layer and to the external driving control circuit.

Abstract: The invention is a spacer method and apparatus for a high-voltage emissive vacuum flat panel display device. The display device has front and rear panels held in place by a supporting frame around the periphery of the panels. The back panel has an array of electron sources that accelerate electrons towards the front panel to bombard and excite a light-emissive material deposited thereon, thereby modulating the screen and displaying desired information patterns. A spacer according to the present invention can be described generally as having a body and N arms extending radially from the body, wherein N is at least three. The body and the N arms physically contact the front and back panels of the display to thereby separate the front panel from the back panel. The arms need not have the same length of extension from the body. Furthermore, the arms may or may not taper as they extend from the body.

Abstract: A shadow mask type color cathode ray tube includes a generally rectangular shadow mask having a curved apertured portion having a multiplicity of electron-transmissive apertures, a curved imperforate portion surrounding and integral with the apertured portion and a skirt portion bent back from a periphery of the curved imperforate portion to form a rearwardly extending wall, and a generally rectangular support frame for suspending the shadow mask by spot welding the skirt portion thereto, within a panel portion of the color cathode ray tube, and at least one of short and long sides of the skirt portion contains only a pair of embossments extending in a direction parallel to a longitudinal axis of the color cathode ray tube on opposite sides of the spot welding point of the support frame and the skirt portion at a center of the at least one of short and long sides of the skirt portion within a distance of one fourth or less of a length of the at least one of short and long sides of the generally rectangular sh

Abstract: 050128487A lamp assembly is provided which includes a lamp, a lamp base attached to the lamp, and a lamp heater. One or more abutment regions of the lamp and the lamp base mate with one another to provide axial and rotational orientation of the lamp relative to the lamp base. The lamp heater conforms to the surface of the lamp and may be bonded thereto by an adhesive. The lamp heater may include a heater element and thermistor adjacent to a surface of the lamp. The lamp, lamp heater and thermistor are connected to a connector. A thermal breaker is connected to the heater. The thermal breaker provides a safety device to control maximum lamp temperature. The thermistor controls the operating temperature of the lamp. The lamp assembly may include a display device wherein the lamp is secured to the display device.

Abstract: An electrodeless low-pressure discharge lamp according to the invention has a lamp vessel (1) which is closed in a gastight manner, which contains an ionizable filling, and which has a cavity (10). In the cavity (10) an elongate coil (2) is positioned with a primary and a secondary winding (21, 22, respectively) of an electrical conductor (20) around a coil former (3) which has a tip (30) which points into the cavity (10). The electrical conductor (20) from which the secondary winding (22) is formed extends from a first end (22a) of the secondary winding (22) facing the tip (30) into a recess (32) of the tip (30) of the coil former (3) and is clamped therein. The first end (22a) of the secondary winding (22) can be easily fastened in this manner.

Abstract: A discharge lamp has a base with a burner having a discharge vessel with at least two electrodes and a supply conductor extending from the base to one electrode as well as a return conductor extending from the other electrode to the base, wherein the supply conductor is surrounded in the burner by a glass tube while the return conductor extends outside the burner along it, and between the surface of the supply conductor and an inner surface of the glass tube a distance is formed by an air-filled space and retained as low as possible or preferably at least approximately zero, so that the intensity of an electrical field formed between the supply conductor and the return conductor is low and the return conductor can be guided along near the burner, which makes possible a compact construction of the discharge lamp or the use of a high ignition voltage for the discharge lamp and/or its operation at high altitudes without the danger of partial discharges in the glass tube or ark-overs outside the discharge vessel.

Abstract: An indirect cathode sleeve and manufacturing method thereof capable of substantially reducing electric power consumption of a heater disposed inside the cathode sleeve and simultaneously reducing a picture-producing time by oxidizing an inside surface of the cathode sleeve and reducing an outside surface thereof. The cathode sleeve includes a heater disposed inside the cathode sleeve; a base metal formed at the top of the cathode sleeve; an electron-emitting material layer formed at the outside surface of the base metal; and an indirect cathode sleeve including a black inside surface and a white outside surface.

Abstract: A pulsed high energy arc-tube flashlamp comprises a quartz flashlamp envelope that is about 2000 mm long and has an outside diameter of approximately forty-eight mm. Each end necks down to an outside diameter of about thirty-eight mm to accommodate an anode re-entrant seal assembly at one end and a cathode re-entrant seal assembly at the other end. Each anode and cathode comprises a beaded electrode rod of tungsten with an unusually large 0.25 inch diameter. A reflective metal paint or white oxide paint is added to the end necks to improve the lamp starting characteristics and to protect the cassette mounting o-ring and lamp cable junction box from radiation. A TEFLON shrink sleeve is shrunk over each outside end of the flashlamp envelope and such provides a small amount of cushion for the lamp mounts in the laser cassette. The monocoque body structure does not need separate lamp mounting bases, and thus overall provides a mechanically simpler and superior structure that is far more reliable.

Abstract: To improve performance, reliability and lifetime of a plasma-containing electro-optic display device, at least the cathode electrodes have hollows or wells within which plasma discharge occurs. This reduces the tendency of the electrode material to be sputter deposited on the walls of the device. In addition, cathode emission is improved by incorporating emitter materials into the electrodes, either by alloying or by surface coatings.