185results about "Tube/lamp vessel degassing" patented technology

This invention discloses novel field emitters which exhibit improved emission characteristics combined with improved emitter stability, in particular, new types of carbide or nitride based electron field emitters with desirable nanoscale, aligned and sharped-tip emitter structures.

A light-emitting device contains getter material (58) typically distributed in a relatively uniform manner across the device's active light-emitting portion. An electron-emitting device similarly contains getter material (112, 110 / 112, 128, 132, and 142) typically distributed relatively uniformly across the active electron-emitting portion of the device.

Provided are a bonding structure for a flat panel display and a method of forming the same, and a flat panel display, including the bonding structure. The bonding structure of a flat panel display device, which is formed between an upper substrate and a lower substrate to seal and bond the two substrates of the flat panel display device, and the bonding structure includes an outer separation wall and an inner separation wall of same heights being arranged along edges of the upper substrate and the lower substrate with a predetermined interval, and a sealant being applied between the outer separation wall and tn wall.

The apparatus for sealing face plates (753) and cathodes (754) has three stations (701, 702, 703). The first (701) is a preheater, the second (702) is an alignment and irradiation station and the third (703) is a controlled cooling station. Beneath each station, a vacuum pump (710) capable of drawing ultralow pressures is provided. The preheater is equipped with upper and lower banks of radiant heaters and reflectors (712). The upper heaters are Provided above a quartz: window (713) of a chamber (714) constituting the station. The pressure in the preheater is pumped down to that in the alignment and irradiation station prior to opening of the gate valve between them and transfer of the face plate and cathode. At the alignment and irradiation station, further heaters (716) are provided. Those above the face plate and cathode, the face plate being uppermost, are mounted on frames (717) about hinges (718), whereby they can be swung up to clear this station's top quartz window, exposing the face plate to the view of an optical system (719) and a laser (720). Manipulation controls (722) are provided for manipulating the position of the face plate to be pixel alignment, as measured by the optical system (719), with the cathode. The laser is traversed around further. The cooling station (703) has meanwhile been pumped down and the sealed device is transferred to it. The temperature of the device is allowed to rise very slowly, in order to reduce the risk of thermal cracking to as great an extent as possible. As the temperature slowly falls, air is slowly introduced, so that the finished device can be removed to the ambient surroundings.

A method for producing a plasma display panel that has a front substrate and a back substrate disposed to face each other. A pre-baking phosphor layer containing a phosphor and an organic binder is formed on at least one of surfaces of the front substrate and the back substrate that are to face each other. A sealing material that softens with heat is applied to the peripheral region of at least one of the surfaces of the front and back substrates that are to face each other. The front and back substrates are disposed to face each other in a stack. The front and back substrates are heated to burn out the organic binder while supplying a dry gas containing oxygen to an internal space that is formed between the front and back substrates.

A field emission display (FED) and a manufacturing method thereof are provided. The FED includes a getter portion isolated outwardly from an active display region. This getter portion includes a non-evaporable getter layer for absorbing gas and an electron emission source for activating the getter layer. Accordingly, by activating the non-evaporable getter, the gas generated in the display is easily absorbed, and the FED is maintained in a high vacuum state.

Disclosed are a non-evaporation type getter excellent in gettering effect, capable of maintaining the inside of a gas-tight container in a display apparatus, particularly a flat panel display apparatus or the like, in a high vacuum condition, easy to mount and less liable to contaminate the inside of the gas-tight container, a display apparatus including the getter, and methods of manufacturing the same. The non-evaporation type getter (20) includes a molded body including at least one element selected from the group consisting of Ti, Zr, Al, V, and Fe as a principal constituent thereof, the molded body formed by powder injection molding. The molded body is composed of a porous body having a porosity of 10 to 30%.

A full-automatic glass vacuum system exhausting table is disclosed, comprising a full glass vacuum pipeline, a glass target connected with a lamp to be exhausted, four electric control glass valves, a glass argon gas bottle and a photoelectric reading U-shaped glass pressure gauge. The vacuumization system is composed by a glass dispersing pump and a mechanical vacuum pump, and installed with an oven whose temperature is automatically controlled, an oven temperature preservation door and a control system for controlling the oven to automatic ascend and descend. The invention realize the automatization of the glass vacuum system by using above technical proposal. The full-automatic glass vacuum system exhausting table not only has good airproof performance and the advantage that preservation time of the glass vacuum system is far longer than that of common metal vacuum system, but also has low cost and convenient maintenance, thus completely eliminating the influence by human factors to the quality of products, reducing the waste product rate and enhancing production efficiency.

A method of removing contaminant particles in newly fabricated field emission displays. According to one embodiment of the present invention, contaminant particles are removed by a conditioning process which includes the steps of: a) driving a anode of a field emission display (FED) to a predetermined voltage; b) slowly increasing an emission current of the FED after the anode has reached the predetermined voltage; and c) providing an ion-trapping device for catching the ions and particles knocked off, or otherwise released, by emitted electrons. In this embodiment, by driving the anode to the predetermined voltage and by slowly increasing the emission current of the FED, contaminant particles are effectively removed without damaging the FED. The present invention also provides a method of operating FEDs to prevent gate-to-emitter current during turn-on and turn-off. In this embodiment, the method comprises the steps of: a) enabling the anode display screen; and, b) enabling the electron-emitters after the anode display screen is enabled. In this embodiment, by allowing sufficient time for the anode display screen to reach a predetermined voltage before the emitter is enabled, the emitted electrons will be attracted to the anode.

An image display apparatus is provided with an external housing constituted by members including first and second substrates positioned with a gap therebetween, an electron source positioned on the first substrate in the external housing, and a fluorescent film and an accelerating electrode provided on the second substrate. A first getter is positioned in the image display area in the external housing. A second getter is provided, so that it is insulated from the electron source and the accelerating electrode, which surrounds the first getter.

The present invention discloses an encapsulated getter belongs to the field of vacuum getter techonlogy, and is characterized by that metal sheet or ring and getter component are placed in glass thin-wall pipe and tightly encapsulated or the getter is placed in metal thin-wall container or glass thin-wall container, said container is evacuated or charged by inert gas, then sealed and stored. Said invention is applicable to various vacuum devices, said getter can be stored for a long period, and can provide convenience for next procedure.

A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, the carbon nanotube transparent conductive film and the fluorescent layer both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough and a second glass feedthrough, the first glass feedthrough having an anode down-lead pad, an anode down-lead pole connected to the anode down-lead pad, the second glass feedthrough having a cathode down-lead pole and a nickel pipe for securing one end of the cathode emitter; (d) securing the other end of the cathode emitter to one end of the cathode down-lead pole on the second glass feedthrough; (e) melting and assembling the first and second glass feedthroughs to ends of the glass tube respectively.

A light emission device having an evaporating getter unit and a display device utilizing the light emission device as a light source. The light emission device includes a vacuum vessel having first and second substrates facing each other and a sealing member, the first and second substrates having an active area and a non-active area, an electron emission unit located on the first substrate at the active area, a light emission unit located on the second substrate at the active area, a getter unit provided between the first and second substrates at the non-active area, and a barrier disposed between the getter unit and the active area. The barrier blocks diffusion of getter material toward the active area during the getter activating process and prevents (or reduces) a slip or a movement of the getter unit.

In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.

A cold cathode fluorescent tube where an electron emitting electrode is sealed in shows much deterioration in the luminance with time, thereby being not adequate for a long time use. The electrode emitting electrode is formed in such a shape that an electric field is not locally concentrated. By mixing a material of high heat conductivity, such as tungsten, as the material for the electron emitting electrode or using helium of high heat conductivity as the sealing gas, a long life of the cold cathode fluorescent tube is achieved.

The present invention provides a method of manufacturing an image display device in which a panel member constituting a panel of an image display device is transferred to a plurality of processing chambers each having a temperature control unit, and subjected to a plurality of processing steps under temperature control. The temperature of the panel member in each of the processing chambers is set to be not more than the set temperature of the panel member in the previous processing chamber by the temperature control unit.

An electron emission device having various functional electrodes in addition to the electrodes serving to emit electrons includes: first and second substrates facing each other, and cathode and gate electrodes arranged on the first substrate within an effective electron emission area and including an insulating layer interposed therebetween. The electron emission regions are electrically connected to the cathode electrodes. At least one dummy electrode is arranged external to the effective electron emission area. At least one anode electrode is arranged on the second substrate. Phosphor layers are arranged on one surface of the anode electrode.

The invention discloses a negative electrode transfer equipment-based indium sealing method of a photomultiplier. After fabrication of a negative electrode, the sequence of an air absorption agent toremoval gas, simulation time, a switch multi-chip packaging (MCP) baffle plate and a lifting MCP pipe core is reasonably arranged, so that the indium sealing process has definite operation standard, favorable vacuum degree is obtained, and the performance of the photomultiplier is improved.

A vacuum retention agent, which is safe, easy to handle, saves space, and absorbs residual gases inside a hermetic envelope to maintain the hermetic envelope in a high degree of vacuum is provided in place of the conventional metal getter. A display device including the vacuum retention agent is provided. A gas occlusion material containing ZrOx (where 1≦×≦2) is disposed in a hermetic envelope forming a self-luminous element. ZrOx is formed in pattern from a paste of zirconium dioxide, which can be generally obtained as a reagent. In a production step, the patterned self-luminous element is hermetically sealed in vacuum in an atmosphere at 120° C. to 500° C., so that the vacuum retention effect is more improved.

An image display unit having a structure in which a heat-resisting fine particle layer is formed on a metal back layer disposed on a phosphor layer, and a getter layer is deposited / formed on the heat-resisting fine particle layer by vapor-depositing. The fine particle layer is desirably formed in a specified pattern, and a filmy getter layer is formed in a pattern complementary to the former pattern. The average particle size of heat-resisting fine particles which may use SiO2, TiO2, Al2O3, Fe2O3 is 5 nm to 30 μm. Since abnormal discharging is restricted, the destruction and deterioration of an electron emitting element and a phosphor screen are prevented to provide a high-brightness, high-grade display.

On a faceplate having a phosphor layer and a metal back that are formed on a substrate, in a vacuum atmosphere, for instance an active Ba film is deposited as a getter film. Following this, while maintaining the vacuum atmosphere, the faceplate thereon the getter film is deposited and a rear plate having a plurality of electron emitters formed on a substrate are oppositely disposed to form a gap therebetween through a support frame, the gap being hermetically sealed. A flat panel display comprises the active Ba film formed on for instance the metal back as a getter film. Such getter film, while maintaining an activity, is disposed on an image display region in a vacuum vessel, having an excellent getter function.

The invention discloses a high-temperature solar blind ultraviolet photoelectric tube and a manufacturing method thereof. The photoelectric tube comprises a core column, a molybdenum group purple glass permeable shell, a metal straight rod and a molybdenum electrode, wherein the molybdenum group purple glass permeable shell is encapsulated on the core column; the metal straight rod is arranged in the core column; and the molybdenum electrode is connected to the metal straight rod. When the high-temperature solar blind ultraviolet photoelectric tube exhausts air, the molybdenum group purple glass permeable shell is baked at high temperature for a long time and the molybdenum electrode is treated by an electron bombardment method. The photoelectric tube has the advantages of high sensitivity, high reliability, long service life, high response speed, high temperature resistance, no response to visible light and infrared light, light weight and the like.

The invention provides a method for preparing an electric vacuum inspiration element by using powder injection molding, which belongs to the electric vacuum inspiration element manufacturing technical field. The preparation technology is as follows: Ti powder and Mo powder taken as raw materials are mixed in a mixer, the evenly-mixed raw material powder and adhesive are mixed according to the volume ratio, mixed in a mixing roll, cooled, then crushed into injection feedstock, and subject to the injection molding, two-step debinding process treatment is adopted to a blank formed by the injection molding, the blank formed by the injection molding undergoes solvent debinding and vacuum thermal debinding then, and finally vacuum sintering is carried out to the debound blank to prepare the vacuum inspiration element. The method has the advantages that: the method can prepare the inspiration elements with complicated shape and high dimension accuracy to meet the requirement of spaces with various shapes of various electric vacuum devices to the complicated shape and the dimension accuracy of the inspiration elements. The aperture and the degree of porosity of the product are evenly controlled, and the degree of porosity of the inspiration element can reach more than 50 percent.

There are described dispensers (10; 20; 30; 40; 50; 60) of alkali or alkaline-earth metals, comprising deposits of getter materials (13; 23; 33; 43; 53; 63) and alkali or alkaline-earth metal sources (12, 22; 32; 42; 53; 63), in which the sources of alkali or alkaline-earth metal are protected from environmental gases by said deposits of getter materials.

Disclosed are a non-evaporation type getter excellent in gettering effect, capable of maintaining the inside of a gas-tight container in a display apparatus, particularly a flat panel display apparatus or the like, in a high vacuum condition, easy to mount and less liable to contaminate the inside of the gas-tight container, a display apparatus including the getter, and methods of manufacturing the same. The non-evaporation type getter (20) includes a molded body including at least one element selected from the group consisting of Ti, Zr, Al, V, and Fe as a principal constituent thereof, the molded body formed by powder injection molding. The molded body is composed of a porous body having a porosity of 10 to 30%.