181results 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.

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.

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.

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 ZrO_x (where 1≦×≦2) is disposed in a hermetic envelope forming a self-luminous element. ZrO_x 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.

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.

A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.