摘要:
Disclosed is a thermionic emission material coating method for a filament used in a fluorescent display tube. The tungsten wire emerges in a carbonate oxide thermionic emission material in dryable form while rotating it so that the carbonate oxide becomes coated on the circumference of the wire and then dries the tungsten wire while rotating it to have a uniform thickness of coating over its entire circumference, thereby preventing flaking off the thermionic emission material and filament breakage which is caused by the uneven coating of thermionic emission material.
摘要:
A method is disclosed for use in the manufacture of a color cathode ray tube having a shadow mask with a pattern of minute apertures for color selection. A removable film effective to prevent particle occlusion of the apertures is disposed on at least one side of the mask. The film has an extremely small, substantially uniform thickness dimension, a low index of refraction, and is of such high transparency as to exhibit a negligible optical effect during photoscreening operations.
摘要:
A sheet of metallic material having a thickness T is covered on one side by an etchant resist and on the opposite side by an etchant resist and a removable shield. Etching is first performed on the side with only the etchant resist layer. Next, the shield is removed and the material is etched from both sides to produce an opening having a minimum dimension less than the thickness T of the material.
摘要:
There is disclosed an apparatus and method for simultaneously applying a relatively thin coating of photosensitive material to both sides of a continuously moving horizontally aligned metallic strip wherein the strip is submerged within a tank assembly having the material therein. The strip is then withdrawn at a predetermined rate and in a substantially vertical direction from the tank assembly through a drying chamber having at least one pair of heater members positioned therein.
摘要:
A light-emitting discharge tube in which an outer wall surface of a glass tube is made less susceptible to flaws by forming a protective film on the outer wall surface of the glass tube, a method of fabricating the light-emitting discharge tube, and a protective film forming apparatus are provided. The light-emitting discharge tube defines light-emitting discharge regions by a plurality of external electrodes. The outer wall surface of the light-emitting discharge tube (the glass tube) is coated with the protective film (a metal film, a conductive metal oxide film, an insulating metal oxide film, or an organic film).
摘要:
A functional film sticking apparatus includes: a separator peeling unit for peeling a separator from a functional film having the separator stuck on the functional film via an adhesive; a functional film sticking unit for sticking the functional film, from which the separator has been peeled by the separator peeling unit, on a panel surface; and a film fixing portion for carrying the functional film at least from the separator peeling unit to the functional film sticking unit while holding the functional film by suction, the film fixing portion being provided with a roller for sticking the functional film. The separator peeling unit is provided with a suction device for sucking, upon peeling the separator from the functional film, the atmosphere at the portion to be peeled and its neighborhood, or is provided with an electrostatic eraser for removing, upon peeling the separator from the functional film, electrostatic charges at the portion to be peeled and its neighborhood. With this apparatus, it is possible to reduce the entrapment of air and foreign matters upon sticking a functional film on a product and hence to improve the quality of the product on which the function film has been stuck.
摘要:
To provide a substrate consisting of carbon or non-metallic materials containing carbon with a layer of a metal having a high melting point, first an undercoat layer is applied to the substrate by plasma spraying in an inert atmosphere. The undercoat layer predominantly consists of rhenium, molybdenum, zirconium, titan, chrome, niobium, tantalum, hafnium, vanadium, platinum, rhodium or iridium. Onto that undercoat layer, a covering layer can be applied, by plasma spraying as well. In order to reduce the thermo-mechanical stress and to improve the adhesion of the undercoat layer on the surface of the substrate, the substrate is preheated prior to applying the undercoat layer. By means of such a method, carbon-containing substrates can be provided with an undercoat layer and, if required, with a covering layer quickly and reliably at low costs.
摘要:
A paste composition for screen printing a cathode ray tube (CRT) shadow mask, the composition including 12-32 wt % of a vehicle, 34-87 wt % of an electron reflecting material, and 0.7-44 wt % of a frit, and a screen printing method using the paste composition. A CRT shadow mask to which the paste composition has been applied, the vehicle driven off, and the frit glassified exhibits decreased doming due to reduced thermal expansion of the shadow mask.
摘要:
A sol-gel coating of conductive materials, such as ITO, which is applied to a substrate, for example a display window of a cathode ray tube, is cured by means of a laser. This is preferably carried out in a water-containing atmosphere, for example an aqueous aerosol and/or a hydrogen-containing gas, such as a forming gas. This results in a stable resistance reduction by several hundred times.
摘要:
A coating device for coating a cathode-ray tube with a layer has a booth for accommodating a cathode-ray tube to be coated. The booth houses a coating robot with a spray nozzle for spraying a coating solution onto the cathode-ray tube in the booth to coat a layer on the cathode-ray tube. The inner wall surfaces of the booth are lined with a water-containing member which is supplied with water from a water supply pipe connected to the booth. An air-conditioning unit is mounted on the booth for controlling the temperature and humidity in the booth. The cathode-ray tube is introduced into the booth from a conveyor through an opening defined in a wall of the booth and fitted with a selectively closable door.