71results about "Discharge tube coating" patented technology

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.

A method of manufacturing plasma display panels using a substrate holder for deposition on a substrate of the plasma display panel. The substrate holder is configured with plural frames, and the substrate of the plasma display panel is held by its periphery with at least one of these frames. A frame holding the substrate has a protrusion extending to a non-deposition face of the substrate held in such a way as to surround the substrate. Since the protrusion acts as a blocking sheet, attachment of a deposition material passing through an opening on the substrate holder and reaching onto the non-deposition face of the substrate is suppressed.

According to the present invention, there is provided a method for forming a metal oxide film comprising, when a metal oxide film is formed by conducting a thermal treatment on a coating film containing an organic metal compound formed on an inner wall of a tube, performing an ultraviolet irradiation treatment or an ozone treatment on the coating film prior to or simultaneously with the thermal treatment.

The invention relates to a roller coating apparatus with double knife blades and a method for manufacturing optical films by using the same. In order to reduce the product loss and defect ratio, another rear knife blade is arranged in a common gravure coating apparatus to remove coating liquid air bubbles which is produced in a long time continuous production and is transferred on the gravure roller, thereby remaining the stability of the production process for a long time and obtaining an even coating and a favorable appearance. The coating apparatus according to the invention comprises a gravure coating liquid transfer roller for transferring the coating liquid in a liquid disk to films and rotating the roller when a third of the roller is dipped in the coating liquid in the liquid disk; a fore knife blade arranged in front of the gravure roller for scraping redundant coating liquid and leaving given quantity of coating liquid to be transferred by the gravure roller; and the rear knife blade arranged on the back side of the gravure roller for preventing the bubbles from generating on the gravure roller surface.

For each of colored resists, a resist coating step of coating a washed substrate with the colored resist, a reduced-pressure drying and temporary baking step of evaporating solvent contained in the colored resist, an exposing step of printing a pattern in the colored resist, a developing the printed pattern and a photo-curing and temporary post-baking step of hardening a surface portion of the resist to a hardness level, in which there is no defect of the printed colored resist pattern occurs in a coating step and a developing step, which are performed later, are repeated. In forming a last colored resist, a normal baking step of simultaneously hardening all of the coated colored resist patterns is performed, instead of the photo-curing and temporary post-baking step.

A glass tube for lamp includes: a tubular glass section having open ends; and a ceramics film that covers at least a portion of an inner surface of the glass section in an area that forms a light emission section of the lamp.

The invention relates to a fluorescent liquid coat device of fluorescent lamp which comprises a storage device used for storing and coating the fluorescent liquid in the wall of the glass tube, a saturated vapour supply device used for supplying vapor to the storage device, to apply pressure on the fluorescent liquid fluid level of the storage device, thereby preventing the evaporation of the fluorescent liquid and the flow of outer water or air. The fluorescent liquid coat device of fluorescent lamp applies pressure on the stored fluorescent liquid level through filling saturated vapour in the storage groove, thereby preventing the evaporation of the fluorescent liquid, keeping stability of the viscocity of fluorescent liquid and improving the coating quality of the fluorescent lamp.

An electron source capable of suppressing consumption of an electron emission material is provide. The present invention provides an electron source including: an electron emission material; and, an electron emission-suppressing material covering a side surface of the electron emission material, wherein a work function of the electron emission-suppressing material is higher than that of the electron emission material, and a thermal emissivity of the electron emission-suppressing material is lower than that of the electron emission material.

Disclosed is a method of manufacturing an emitter in which the tip of the emitter can be formed into a desired shape even when various materials are used for the emitter. The method includes performing an electrolytic polishing process of polishing a front end of a conductive emitter material so that a diameter of the front end is gradually reduced toward a tip; performing a first etching process by irradiating a processing portion of the emitter material processed by the electrolytic polishing process with a charged particle beam; performing a sputtering process by irradiating the pointed portion formed by the first etching process with a focused ion beam; and performing a secondary etching process of further sharpening the tip by an electric field induced gas etching processing while observing a crystal structure of the tip of the pointed portion processed by the sputtering process using a field ion microscope.

A printing screen, printing process and method for improving side-bottom ratio are provided. The printing screen mainly comprises a plurality of printing units, wherein each of the printing units comprises a body and a protrusion structure. The body has an ink aperture, and the protrusion structure extends from a surface of the body into the ink aperture. The printing process of a fluorescent layer in a plasma display panel utilizing the said printing screen can enhance the uneven film thickness of the fluorescent layer on the bottom of a discharge chamber, and further improve the side-bottom ratio of the fluorescent layer in a plasma display panel.

A plasma display panel (PDP), includes first and second substrates facing each other, a plurality of first and second electrodes along a first direction between the first and second substrates, a plurality of third electrodes along a second direction between the first and second substrates, barrier ribs between the first and second substrates, the barrier ribs defining a plurality of pixels and exhaust areas between the pixels, and photoluminescent layers, the photoluminescent layers being in the pixels, on the barrier ribs, and in the exhaust areas.

A filming solution contains a copolymerized emulsion having more than 70 wt % of butyl methacrylate and more than one species of monomer, and more than one species of additive. Preferably, the monomer is selected from the group consisting of acrylic acid derivative, methacrylic acid derivative, styrene, acrylamide, and acrylonitrile.

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).

The invention relates to a fluophor coating method for a fluorescent lamp, in particular to a fluophor coating method which can reduce the operation procedures in the technique of manufacturing the fluorescent lamps through coating the fluophor in the fluorescent lamp. The invention includes the following procedures: treating a solvent before the coating to the inner wall of a glass tube; utilizing the solvent to clear a pre-treated solvent layer coated on a sealing part of the glass tube, after the treatment of the solvent before the coating; coating the inner wall of the glass tube with fluophors after the clearing o f the pre-treated solvent layer on the sealing part of the glass tube; utilizing the solvent to clear the fluophors adhered to the sealing part of the glass tube and an electrode arrangement part, after the coating of the fluophors.

An electron emission element of the present invention includes a lower electrode, a surface electrode, and a silicone resin layer disposed between the lower electrode and the surface electrode, wherein the surface electrode includes a silver layer, and the silver layer is in contact with the silicone resin layer.

A plasma display panel (PDP) according to one embodiment includes: a first substrate and a second substrate that are disposed substantially in parallel with each other with a predetermined distance therebetween; a plurality of address electrodes disposed on the first substrate; a first dielectric layer disposed on an entire surface of the first substrate while covering the address electrodes; a plurality of barrier ribs having a predetermined height from the first dielectric layer and disposed in a space between the first substrate and the second substrate to partition the space into discharge spaces of a predetermined size; a phosphor layer disposed in the discharge spaces; a plurality of display electrodes disposed on one side of the second substrate facing the first substrate in a direction crossing the address electrodes; a second dielectric layer disposed on an entire surface of the second substrate to cover the display electrodes; and a protective layer disposed to cover the second dielectric layer. The protective layer includes MgO having a crystalline grain size ranging from 100 to 500 nm and has a membrane density of less than or equal to 3.3 g / cm3.

The present invention relates to a device for removing coating layers of a light tube and a method thereof. The method for removing coating layers of a light tube comprises the steps of coating a fluorophor inside a light tube through a coating layer removing mechanism which is capable of forming and removing coating layers, dipping the end of the light tube coated with the fluorophor through the coating step into a solvent through the coating layer removing mechanism; and then injecting dry air into inside the light tube dipped in the dipping step to extrude the solvent out to remove the coating layers of the fluorophor.In the chemical treatment manner, the method for removing coating layers of light tubes is capable of effectively removing fluorophor maintained in the light tube after the coating operation.In addition, after the coating layer removing step is completed, a step of ultrasonic cleaning is executed to remove coating layers of a fluorescent lamp more effectively.

The invention discloses a dynode structure and an arc dynode electron multiplier based on the same. The electron multiplier comprises a base frame box body, a gate electrode and a metal substrate. The base frame box body having a quarter cylinder structure consists of a base plate, a first side plate, and a second side plate; the base plate has an arc structure; and the first side plate and the second side plate are connected with the two sides of the base plate. The metal substrate is fixed on the base plate and the upper surface of the metal substrate is an internally-recessed arc surface; a thin oxide film grows on the upper surface of the metal substrate by using a magnetron sputtering method; and the metal substrate is arranged between the first side plate, the second side plate, and the base plate and an incident electron is accelerated by the gate electrode and then enters the thin oxide film. The dynode of the electron multiplier has a uniform structure; the transmitting efficiency of the secondary electron is high; the service life is long; and installation becomes simple and convenient.

The invention discloses an ultraviolet lamp production process, which comprises a film coating step, a first press-sealing step, an exhaust pipe connecting step, a second press-sealing step, a gas pumping and filling step and a lamp holder mounting step. In the film coating step, an aluminum oxide film is generated on the inner wall of a glass pipe. In the first press-sealing step, one end of a first electrode is arranged in a first electrode mounting end in a penetrating manner, and the first electrode mounting end is subjected to hot melting and flattening to fix the first electrode. In theexhaust pipe connecting step, an exhaust pipe is connected to the glass pipe. In the second press-sealing step, one end of a second electrode is arranged in a second electrode mounting end in a penetrating manner, and the second electrode mounting end is subjected to hot melting and flattening to fix the second electrode. In the gas pumping and filling step, foreign gas in the glass pipe is pumpedout, the glass pipe is then filled with functional gas, the exhaust pipe is removed, and a lamp tube assembly is manufactured. In the lamp holder mounting step, lamp holders are mounted at the firstelectrode mounting end and the second electrode mounting end. The ultraviolet lamp production process disclosed by the invention has the advantage that the service life of an ultraviolet lamp can be prolonged.