Abstract: Disclosed are a shrinkage band and a cathode ray tube (CRT) comprising the same. The shrinkage band includes includes a pair of spaced apart parallel first sides, a pair of spaced apart parallel second sides perpendicular to the first sides, the second sides being longer than the first sides, and corner portions connecting the first and second sides such that the corner portions are provided at four corners of the shrinkage band, wherein the shrinkage band is configured to go around an outer circumference of a CRT face panel skirt to apply tension to the face panel, and wherein the first sides, the second sides, and the corner portions of the shrinkage band comprise two materials each having a different permeability.

Abstract: A light emission apparatus includes: an electrode; a LED mounted on the electrode with an indium layer interposed therebetween, the LED having a substrate formed of an n-type ZnSe single crystal, and an epitaxial light emission structure formed of a compound crystal comprising ZnSe serving as a matrix, the epitaxial light emission structure being provided on the substrate and emitting light when an electric current is introduced thereinto; and resin encapsulating the LED, the resin having a glass transition temperature of lower than 80 degrees centigrade or being soft to be still elastic in a vicinity of the LED at room temperature.

Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of discharge spaces therein divided by separate walls. Each of the discharge spaces is connected to a small gas channel beside the barrier rib through a small connect opening.

Abstract: A vacuum fluorescent display includes a vacuum tube with a pair of substrates, and a side glass disposed between the two substrates. Filaments are mounted within the vacuum tube to emit thermal electrons. A conductive layer is formed at one of the substrates with a predetermined pattern, and a phosphor layer is formed on the conductive layer. A rib grid is provided at the substrate with an insulating rib positioned around the conductive layer, and a control electrode is formed on the top surface of the insulating rib. Assuming that the distance between the top surface of the substrate and the top surface of the insulating rib is indicated by h1, and the distance between the top surface of the substrate and the top surface of the phosphor layer is indicated by h2, it is established that h1≦h2.

Abstract: The present invention relates to a cathode in a cathode ray tube which can shorten a picture presentation time lag and reduce power consumption. The cathode includes an emission layer at an upper part of the cathode and a sleeve for inserting a heater therein, wherein the sleeve contains a blackened material, and has a porous surface.

Abstract: A fluorescent lamp of this invention has a phosphor film formed on the inner wall surface and a discharge medium containing xenon-gas filled in the glass tube having the sealing portions at both ends. In this one end in the glass tube, an inner electrode is arranged and a first feeding lead wire connected to this inner electrode is connected to one of the sealing portion by penetrating airtight. On the outer surface of the glass tube, an outer electrode composed of a conductor spirally wound round it along the axial direction of the tube. At the other end of the glass tube, a second feeding lead wire is buried in the sealing portion and the other end is lead out of the glass tube. The end of this outer electrode is electrically connected to the second feeding lead wire and mechanically fixed there.

Abstract: A headlight device includes a discharge lamp, a circuit unit and a heat radiating member. The circuit unit is directly connected to the discharge lamp to apply a high voltage to the discharge lamp. The heat radiating member radiates heat generated from the discharge lamp and the circuit unit. The heat radiating member is placed between the discharge lamp and the circuit unit and extends radially in a generally vertically downward direction.

Abstract: In a side ground electrode type of spark plug, sizes of discharge members are optimized to reduce a useless portion in discharging to improve discharge wear resistance. A first discharge member mainly comprising Ir alloy is welded to the central electrode. A second discharge member comprising Ir metal circle plate is welded to the ground electrode, wherein a side surface of the first discharge member confronts a surface of the second discharge member to form a spark discharge gap G≧0.2 mm, D(a width of the first discharge member)≧1.6 mm. |A−D|≦(G+0.5 mm). A is a width of the second discharge member. Moreover, D≦5.0 mm. A maximum cross-sectional area of weld portion between the first discharge member and the central electrode ≦8 mm2. This weld portion has distance L to the second discharge member. L≧G.

Abstract: A color selection apparatus for a cathode ray tube, having a frame formed with a pair of supporting members arranged facing each other at a predetermined distance therebetween and a pair of elastic members coupled to the supporting members; and a mask formed with a plurality of slits for passing electron beams and fixed to the supporting members under tension. Each of the elastic members is formed with a pair of opposite parts facing each other in parallel at a predetermined distance therebetween, and a connection part perpendicularly arranged between the opposite parts. The opposite parts are preferably opposite each other in a direction where the electron beams advance (z-axis direction of the cathode ray tube). Alternatively, the opposite parts are opposite each other in a major direction of the mask (x-axis direction of the cathode ray tube).

Abstract: An organic electroluminescent display panel includes a substrate that includes a display panel region having a plurality of organic electroluminescent devices each including a plurality of display electrodes and an organic material layer, which are stacked, and electrically conductive connecting lines electrically connected to electrodes formed in a domain surrounding the display panel region on the substrate. The connecting lines are lower in resistance than the electrodes formed on the display panel region.

Abstract: In a display device (70, 70A, 80-80G, 90-90F) having a display window (73, 81, 93), a magnetic loss layer or layer (75, 75A, 88-88C, 97-97C) is formed on at least a part of a principal surface of the display window. The magnetic loss layer may be a granular magnetic thin layer which is, for example, made of a magnetic substance of a magnetic composition comprising M, X and Y, where M is a metallic magnetic material consisting of Fe, Co, and/or Ni, X being element or elements other than M and Y, and Y being F, N, and/or O. The magnetic loss layer may be formed in any one selected from mat, lattice, stripe, and speck fashions. The magnetic loss layer may be formed in a mesh fashion.

Abstract: A cathode ray tube comprising an electron source and an electron beam guidance cavity having an input aperture and an output aperture, wherein at least a part of the wall of the electron beam guidance cavity near the output aperture comprises an insulating material having a secondary emission coefficient &dgr;1 for cooperation with the cathode. Furthermore, the cathode ray tube comprises a first electrode which is connectable to a first power supply for applying, in operation, an electric field with a first field strength E1 between the cathode and the output aperture. &dgr;1 and E1 have values which allow electron transport through the electron beam guidance cavity. The cathode ray tube further comprises a conventional main lens to obtain a spot on a display screen. According to the invention, an electron lens is placed between the exit of the cavity and the main lens for directing the electron beam at a predetermined angle towards the entrance of the main lens.

Abstract: The present invention relates to a color cathode ray tube having a spring structure capable of compensating for the displacement of a shadow mask frame, thereby suppressing the degradation of the color purity according to the mislanding of electron beams. The spring according to the present invention includes a stud pin coupling part, a frame welding part and an inclined part as an elastic support body having a predetermined inclination angle between the stud pin coupling part and the frame welding part. Further, the spring is bonded to a plurality of metal members that have different thermal expansion coefficients, while being separated from each other in a length direction of the spring relative to a tube shaft.

Abstract: A cooling structure of a projection tube having a following constitution is disclosed. A chamber in which a liquid coolant for cooling a panel surface is filled is formed on the panel surface of the projection tube and the chamber is defined by the panel surface, a lens which faces the panel surface in an opposed manner and a metal envelope which radiates heat. A first seal member is disposed between the metal envelope and the panel surface, while a second seal member is disposed between the metal envelope and the lens. A holder for pressing the lens in the direction toward the metal envelope is disposed in the periphery of the lens. Pads which have surfaces approximately perpendicular to a tube axis of the projection tube are formed on a funnel portion of the projection tube. A sustainer for supporting the chamber is brought into contact with the pads.

Abstract: The present invention provides a gas discharge panel on which color images are accurately displayed and which is easy to manufacture. The first and the second substrates face each other across an interval, forming a discharge space in between, which is filled with a discharge gas. Pairs of electrodes for sustaining discharge are provided on at least one of the two substrates, and phosphor layers are formed on the first substrate, arranged along the electrode pairs to form a matrix of discharge cells. An image is displayed by selectively illuminating discharge cells. Gap members having a given shape are provided between the first and second substrates at locations corresponding to the boundaries between discharge cells.

Abstract: In the manufacturing process of a color display tube (1), the display window (3) is assembled with the funnel shaped part (4) in a furnace by subjecting them to a heat treatment. This heat treatment can lead to deformation of the color selection electrode (12), because in color display tubes (1) with an invar shadow mask (13), the diaphragm parts (15) are made from invar as well, while the corner sections (16) are made from iron in order to obtain enough stiffness. The difference in expansion coefficient between invar and iron leads to shearing of the welds (22) that connect the diaphragm parts (15) to the corner section (16). To overcome this problem the invention proposes to provide the diaphragm parts (15) with slits (23) or impressions (24), which are arranged so that no stress occurs between the spot welds (22) when the color selection electrode (12) is heated.

Abstract: A stem for a cathode ray tube. The stem includes a circular disc type stem part adapated to be integrally sealed with an end of a neck portion of the cathod ray tube, an exhausting tube mounted in the middle of the stem part for the exhausting of the cathode ray tube, a plurality of leads mounted to the stem part along a periphery of the exhausting tube and connected to respective electrodes of an electron gun for providing voltage signals, and a plurality of stem mounds mounted to the respective leads for fixing and supporting the leads in the stem parts and having different shapes and/or sizes depending on loads to be applied to inner leads, so that cracks of the stem mounds and blocking problems of a shadow mask due to the cracks may be prevented.

Abstract: Disclosed is a LED which can be mounted at high density on a large area display. Having a hole for heat sink in the ceramic substrate, the LED is superior in heat sink property. In order to fabricate the light emitting device, first, a secondary ceramic sheet is stacked on the ceramic substrate, followed by forming electrodes in a predetermined pattern on the secondary ceramic sheet around the hole for heat sink. On the ceramic substrate, an upper ceramic sheet with an opening is stacked to form a stacked ceramic substrate in such a way that a part of the electrodes are exposed through the opening. After co-firing the stacked ceramic substrate, a light emitting diode chip is mounted on the secondary ceramic sheet at a position corresponding to the hole for heat sink. Then, the electrodes are electrically connected with the LED chip, and the LED chip is sealed with insulating resin. A light emitting device using the LED and a fabrication method therefor are also disclosed.

Abstract: The cathode for photo-electron emission 5 is comprised of an alkali metal containing layer 5d made of material for emitting photo-electrons by the entry of light or for emitting secondary electrons by the entry of electrons, such as particles which consist of an alkali antimony compound, on an Ni electrode substrate 5c on which an Al layer 5b is deposited, and has an intermediate layer 5a made of carbon nano-tubes between the alkali metal containing layer 5d and the Ni electrode substrate 5c, therefore the defect density inside the particles is decreased, and the recombining probability of electrons and holes drops remarkably, which improves the quantum efficiency.

Abstract: A field emission type cold cathode device comprises a substrate, and a metal plating layer formed on the substrate, the metal plating layer contains at least one carbon structure selected from a group of fullerenes and carbon nanotubes, the carbon structure is stuck out from the metal plating layer and a part of the carbon structure is buried in the metal plating layer.