Abstract: The invention relates to a cathode ray tube equipped with at least one oxide cathode comprising a cathode carrier having a cathode base of a first cathode metal and having a covering layer of ultrafine metal particles that contain nickel. The oxide cathode also comprises a cathode coating of an electron-emitting material containing a particle-particle composite of oxide particles and metal particles. The oxide particles comprise an oxide selected among the oxides of scandium, yttrium and the lanthanoids cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and an alkaline earth oxide selected among the group consisting of the oxides of calcium, strontium and barium, and the metal particles contain a second cathode material selected from the group consisting of Ni, Co, Ir, Pd, Rh and Pt. The invention also relates to an oxide cathode.

Abstract: A boron-containing phosphor comprises a material having a formula of AD1?xEuxB9O16, wherein A is an element selected from the group consisting of Ba, Sr, Ca, Mg, and combinations thereof; D is at least an element selected from the group consisting of rare-earth metals other than europium; and x is in the range from about 0.005 to about 0.5. The phosphor is used in a blend with other phosphors in a light source for generating visible light with a high color rendering index.

Abstract: Provided are electron-emitting devices, electron sources, and image-forming apparatus improved in electron emission efficiency and in convergence of trajectories of emitted electrons. An electron-emitting device has a first electrode and a second electrode placed in opposition to each other with a gap between first and second electrodes on a surface of a substrate, and a plurality of fibers electrically connected to the first electrode and containing carbon as a main component, and the fibers are placed on a surface of the first electrode facing the second electrode.

Abstract: The present invention relates to a cathode ray tube, and more particularly to a cathode ray tube having a shadow mask for obviating doming phenomenon caused by thermal expansion and deterioration of color purity.

Abstract: A cathode ray tube is provided, in which the flatness of a tension mask constituting a color-selection mechanism is maintained by a suitable stretching force, while with the tension mask, the influence of external magnetic fields, such as the terrestrial magnetism is suppressed, and the shifting of the electron beam is reduced. A tension mask made of a magnetostrictive material is used, the tension mask is stretched by a stretching force in a range maintaining the flatness of the tension mask, and the direction and strength of the stretching force are set such that vertical magnetic permeability of the tension mask increases, due to a magnetoelastic effect caused by the stretching force in the magnetostrictive material of the tension mask.

Abstract: A halogen lamp of a 12V type including: a glass part, a portion of which is a light emitting portion having a space therein and the rest of which is a sealing portion, both portions being made of quartz glass; an infrared reflective coating formed to cover an outer surface of the glass part; a filament which, supported by the sealing portion, is provided in the inner space of the light emitting portion; a molybdenum foil which is embedded in the sealing portion and is electrically connected to the filament; and a power supply line, one end of which is connected to the molybdenum foil, the other end exposed to outside. The halogen lamp satisfies 450 mm2?Sb?650 mm2 and Se??0.35Sb+520, where Sb and Se designate outer surface areas of the light emitting portion and the sealing portion, respectively.

Abstract: A photocathode manufacturing intermediary article (24) includes a substrate layer (26), and an active layer (20) that is carried by the substrate layer (26). The active layer (20) includes photoemissive alkali antimonide material that is epitaxially grown on the substrate (26).

Abstract: A lamp that utilizes a lamp base locking ring to secure a lamp base shell to a lamp. A hollow light transmitting body terminates in a neck that includes threads and a keyway. A lamp base locking ring having an indentation that extends into the keyway is disposed around the circumference of the neck. A lamp base shell is threaded onto the threads of the neck. The lamp base shell is mechanically fastened to the lamp base locking ring to secure the lamp base shell to the hollow light transmitting body.

Abstract: The gas discharge tube in accordance with the present invention comprises at least two electrically conductive aperture members disposed within a thermoelectron transmission path between a cathode and an anode, and an insulator for electrically insulating the electrically conductive aperture members from each other, thereby being able to emit light with a high luminance. Its startability at the time of emitting light can be enhanced in particular when the aperture area of the electrically conductive aperture member on the downstream side in the thermoelectron transmission path is set favorably.

Abstract: A method of varying a transmittance of a transparent conductive film includes forming the transparent conductive film on a substrate and injecting a high energy source into the transparent conductive film to vary the transmittance of the transparent conductive film.

Abstract: A lamp that utilizes a lamp base locking ring to secure a lamp base shell to a lamp. A hollow light transmitting body terminates in a neck that includes threads and a keyway. A lamp base locking ring having an indentation that extends into to the keyway is disposed around the circumference of the neck. A lamp base shell is threaded onto the threads of the neck. The lamp base shell is mechanically fastened to the lamp base locking to secure the lamp base shell to hollow light transmitting body.

Abstract: In a method for forming negative holes of a field emission display, a plurality of line patterns are first printed on a substrate, and then dried. The printing and drying of the line patterns are repeated until the line patterns are elevated to a predetermined height, then dot patterns are printed between the line patterns on the substrate and dried. The printing and drying of the dot patterns are repeated until the dot patterns are elevated to a predetermined height to define the negative holes enclosed by the line and dot patterns, and the line and dot patterns are simultaneously baked.

Abstract: The invention relates to an illumination unit having an electric lamp which has a lamp vessel having a sealed-off end in the form of a glass base, and having an envelope which at least partially surrounds the lamp vessel and rests on the lamp vessel such that the glass base protrudes from the envelope.

Abstract: The present invention relates to a cathode ray tube, and more particularly, to a funnel for CRT to increase the BSN neck shadow margin by changing the shape of the yoke portion.

Abstract: A color picture tube device that can adjust convergence without causing increases in cost and in power consumption is provided. One pair of magnetic flux generation means for generating a static quadrupole magnetic field are positioned above and below an area where a plurality of electron beams pass through. The static quadrupole magnetic field has an effect of adjusting convergence in a horizontal direction. In this construction, a magnetic flux generated by one of the two magnetic flux generation means that is closer to the plurality of electron beams is reduced, in sync with deflection of the plurality of electron beams in a vertical direction.

Abstract: An object is to efficiently manufacture an organic EL display. A circuit substrate 10 in which is set microstructures 12 and which is formed with wiring 14, and a transparent substrate 20 formed with a transparent electrode 21, an emissive layer 25 and a cathode layer 26, are stuck together with the side formed with the wiring 14 and the side formed with the cathode layer 26 facing the inside, to thereby manufacture an organic EL display 30. In the sticking together of the circuit substrate 10 and the transparent substrate 20, an anisotropic conductive paste or an anisotropic conductive film can be used.

Abstract: The present invention provides an electroluminescent display which can efficiently radiate light emitted from an electroluminescent layer to a viewer side and, at the same time, can reduce a deterioration in contrast of a displayed image caused by external light. The electroluminescent display includes a light transparent substrate and an electroluminescent layer provided on the light-transparent substrate. The electroluminescent layer includes at least a transparent electrode, an organic luminescent layer, and a cathode. Two or more regions with different refractive indexes are provided within said light-transparent substrate.

Abstract: An electron gun for a monochrome cathode ray tube to be used in a projection display device includes a cathode for emitting thermal electrons, and first and second electrodes forming a triode portion together with the cathode. A third electrode is adjacent the second electrode. A fourth electrode is adjacent the third electrode to receive a focus voltage. A fifth electrode partially surrounds the fourth electrode while being adjacent the fourth electrode to receive an anode voltage together with the third electrode. The second electrode has a bottom portion with a stepped portion surrounding a hole for guiding the electron beams while being protruded toward the first electrode, and a sidewall portion extended from the periphery of the bottom portion toward the third electrode. The first and the second electrodes are structured to satisfy the following condition: 0.54?T/G?1.

Abstract: A mask-frame assembly for a color cathode-ray tube comprising a first and second support members spaced out a predetermined distance; first and second resilient support members installed between the first and second support members supporting the first and second support members, each at the first and second resilient support members comprising supports fixed to the first and second support members and a connecting portion connecting the supports; a mask installed at the first and second support members such that tension is applied thereto, the mask comprising a plurality of electron beam through holes; and a compensating unit connected between the first and second support members or the supports of the resilient support members between each connecting portion and the mask, the compensating unit being formed of a material having a lower thermal expansion coefficient than the first and second resilient support members.

Abstract: Devices for electric field control in a field emission display are provided. In one implementation, a device includes a cathode substrate, a plurality of emitter lines formed on the cathode substrate, and a plurality of gate wires crossing over the plurality of emitter lines. Each gate wire has a cross section shaped to produce an electric field between adjacent gate wires that is substantially uniform and substantially flat across a portion of an emitter line in between the adjacent gate wires, the electric field causing an electron emission from the portion of the emitter line. Generally, the electric field is produced by applying a voltage potential difference between at least one gate wire and the emitter line, the electric field sufficient to cause the electron emission.