TW200828393A - Field emission tube - Google Patents

Abstract

The present invention relates to a field emission tube, which includes a transparent glass tube, an anode, a cathode and two glass sealing members. The glass tube has two openings, and the glass sealing members are assembled on the openings respectively. The anode includes an anode conductive layer formed on an inner surface of the glass tube, a fluorescent layer formed on the anode conductive layer, and an anode electrode. The cathode includes an electrode emission body and a cathode electrode. The cathode electrode and the anode electrode are disposed on two glass sealing members respectively.

Description

200828393 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a field emission lamp. [Prior Art] A neon lamp is a common necessities, and includes a transparent glass tube whose inner wall is coated with a white or colored fluorescent material, which is also filled with mercury 瘵 > The principle of illumination of a fluorescent tube is that the electrons emitted by the hot cathode excite the water black ά to emit 'outer light, and the ultraviolet light illuminates the fluorescent material to emit white light or shirt color. Fluorescent tube system - a kind of hot cathode wire, which has higher luminous efficiency than incandescent lamps. However, the use of m gas in this pipe is toxic. When the lamp is broken, mercury vapor will flow out of the outside and will be harmful to the environment and the human body. The horse has solved the above problem. The kind of cold yin _ field emission lamp is provided, including the cathode and the anode corresponding to the cathode. The cathode includes an electron emission layer and a cathode electrode, and the anode includes a dielectric film, a layer opposite to the electron emission layer, and a layer and a hetero electrode disposed on the cathode

When Γ == a certain voltage, the phosphor layer of the emitter of the electron-emitting layer of the cathode emits light on the filament τ of the electron. The field emission lamp (10) has low consumption and high luminous efficiency, and is beneficial to the environment and the human body. Transmission, = surgery, _ _ polar surface of the same end, the structure is more complex and ambiguous "necessary to provide - a simple structure, easy; clothing made. There are sweet in this" [invention content]; Field emission lamp. The field emission lamp is further manufactured by the embodiment. The step details a simple structure, easy 7 200828393 A field emission lamp, including - transparent glass tube, anode, cathode, two glass miscellaneous The kanlang tube comprises _W, and the surface core column is installed at the open end. The anode comprises a pole conductive film formed on the inner wall of the transparent surface tube, formed on the anode conductive film, and a light layer and an anode electrode. And a cathode electrode, wherein the cathode electrode and the anode; the poles are respectively disposed on different glass stems. Compared with the prior art, the field emitter tube anode electrode and the cathode drain pole knife 8 of the invention are placed on the two sides of the glass. The structure is relatively simple and easy to manufacture. [Embodiment] The field emission lamp 1 of the present invention will be further described in detail below with reference to the accompanying drawings. ^ Referring to Figure 1, the field emission lamp 10 of the present invention includes The transparent glass tube 20, the anode 30, the cathode 40 and the two glass stems 5 〇. The glass tube 20 is a strip-shaped tubular structure having two open ends & the glass stem 50 is provided at the open end of the glass tube 20 so as to be in the glass tube A sealing space is formed inside the casing, wherein an exhaust pipe 52 is disposed on a glass core post 5, and one end of the exhaust pipe 52 communicates with the sealing space of the glass tube 2〇, and the other end extends out of the glass core column 50. A vent hole 54 is formed outside. The vent hole 54 can be evacuated by an external vacuum pump (not shown) to form a vacuum in the glass tube, and the vent hole 54 is sealed after the exhaust. The anode 30 includes a glass tube 2 formed therein. The anode conductive film 32 on the inner wall of the crucible, the phosphor layer 34 and the anode electrode layer formed on the anode electroconductive film 32. The anode electroconductive film 32 may be a carbon nanotube transparent conductive film or indium tin oxide 8 200828393

The length of the 奈 中 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈The diameter of the I:, 々 1G + micron 'nanocarbon tube is preferably 1 to 100 nano layer 34. The edge of the anodic electrode is separated from the edge of the anode conductive film 32 near the anode electrode 36. A distance is thus formed - the exposed region 32 of the anode conductive film 32. Preferably, graphite emulsion 38 is disposed under the exposed area 320, and the graphite emulsion is provided with an electrical conduction that ensures the anode lead 32 and the anode electrode %. The camping layer 34 uses a high-efficiency, low-applied voltage and long afterglow glory layer. The glory layer is light-material. The white fluorescent material or the color glory 3 anode electrode 36 can be turned according to actual needs, including the anode lead elastic sheet _, the anode lead Column 362 ^ anode lead 364. Wherein the anode lead spring piece is disposed on the bare region 320 of the anode tantalum film 32 and is electrically conductively connected to the anode conductive film. The anode lead post 362 is attached to a glass stem 5〇 and is axially aligned with the glass tube 2〇. One end of the pole lead post 362 is electrically connected to the anode lead spring piece through the anode lead, and the other end extends out of the broken core post 5 as the external electrode 366 of the anode 20. The purpose of the pole % setting is to provide an external electrode whose anode 30 is electrically connected to the outside. Therefore, the structure of the anode electrode 36 can also take other forms. For example, the anode electrode 36 can be only a conductive pillar or a conductive wire. The _ terminal is connected to the anode conductive film π and the other end extends out of the glass stem 50 as the external electrode 366· of the anode 2〇, or the anode electrode 36 includes an anode lead elastic sheet connected to the anode conductive film 32 and one end connected to the anode (10) spring piece. Conduction, other end extension of glass 9 200828393 Core 50 as external electrode of anode 20 % Cathode 40 comprises cathode emitter 42 and cathode 3, or by referring to Figure 2, cathode emitter 42 comprises - elongated conductor 44 = 5 an electron-emitting layer 422 on the surface of the conductor. Where == is formed in a columnar structure or a filamentary structure, and its diameter is 〇 2 , . 420 is made of or an alloy thereof, preferably, it is made. Conductive metal

The end passes through a nickel tube 46 and a (five) phase of the glass stem 50. The cathode electrode 44 is fixed to the glass stem 50 of the end tube 52, 1 is a guide, the other end has a discharge end connected to the cathode emitter 42, and the other end extension 44 is the external electrode 440 of the cathode 40. Alternatively, the magazine (the fifth) is disposed on the cathode emitter 42 and the cathode electrode to heat or cool the material, and the cathode 42 will generate thermal expansion or material, scales, and the spring can be used for turning. The function of the cathode electrode 44 is to provide the external electrode 440 of the cathode 4 () electrically connected to the outside. The structure of the cathode electrode 44 can adopt other meters. For example, the end of the cathode emitter 42 can directly extend out of the glass stem. An external electrode 440 is used as a cathode. Referring to FIG. 2, the electronic shootout layer 422 includes a glass 426, and a plurality of electron-emitting carbon nanotubes 424 and conductive metal particles 428 dispersed in the glass. Wherein, the length of the product is preferably from 1 to 100 μm, and the diameter is preferably K00 nm. The human getter device 70 is disposed on the glass stem 50 having the exhaust pipe 52 and the fixed cathode electrode 44. The getter in the getter device 7 consumes the gas remaining in the glass tube 20 and the spear used in the field emission lamp. 200828393 The gas released by the Zhongying Light Layer 34 ensures that the field emission lamp 1G has a good vacuum in use. In use, between the anode conductive film 32 and the electron-emitting layer 2 of the cathode 4, an electric field is provided. The carbon nanotube 424 emits electrons under the action of an electric field, and the electron accelerates to strike the fluorescent layer 34 of the anode when the phosphor layer 34 When the color is used, the material will emit colored light, and when the fluorescent layer 34 is made of white fluorescent material, it will emit white light.

As stated on the blush, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is difficult to limit the application of the present invention. Any equivalent material or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention is covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a field emission lamp according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the cathode emitter of Figure 1 taken along the line II-II S. [Main component symbol description] Field emission lamp 10 Open end 22 Transparent conductive film 32 Fluorescent layer 34 Anode lead piece 360 Anode lead 364 Graphite Milk 38 Glass tube 20 Anode 30 Exposed area 320 Anode electrode 36 Anode lead post 362 Anode external electrode 366 Cathode 40 11 200828393 Cathode emitter 42 Electron emission layer 422 Glass 426 Cathode electrode 44 Nickel tube 46 Exhaust tube 52 Absorber device 70 Conductor 420 Carbon nanotube 424 Conductive metal particles 428 External electrode of the cathode 440 Package 50 Vent hole 54

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Claims (1)

200828393 X. Patent application scope 1. A field emission lamp comprising a transparent glass tube, an anode, a cathode and two glass core columns, the wealth of which includes a mouth end, the anode comprising a transparent glass tube (four) formed on the transparent electrode And a phosphor layer and an anode electrode formed on the anode conductive film, the cathode comprising a cathode emitter and a p-electrode, wherein the cathode electrode and the anode electrode are respectively disposed on different glass stems. 2. If you apply for a patent scope! The field emission lamp of the item, wherein the anode conductive film is a carbon nanotube transparent conductive film. 3. The field emission lamp of claim 2, wherein the anode conductive film is provided with graphite milk under the edge of the anode electrode. 4. The field emission lamp of claim 3, wherein the cathode electrode is a guide fixed to the glass stem and parallel to the axial direction of the glass tube; the column 'the conductive column end and the cathode are emitted The body is electrically conductive, and the other end extends out of the glass core to form an external electrode of the cathode. 5. The field emission lamp of claim 4, wherein the anode electrode comprises an anode lead spring piece formed on the know-how conductive film, fixed on the other-glass stem and in the glass-lined axis A parallel anode lead post and a positive tangential line connecting the anode lead tab contact lead post, the anode lead post extending at one end of the outer lead electrode forming the anode outside the glass stem. 6. The field emission lamp of claim 5, wherein the electron emitter is provided with an electron emission layer, the electron emission layer comprising a plurality of carbon nanotubes. 7. The field emission lamp of claim 6, wherein the yin 13 200828393 emitter is remote from the cathode electrode and is fixed to the glass stem by a nickel tube. 8. The field emission lamp of claim 7, wherein the glass stem of the fixed cathode electrode is provided with an exhaust pipe, one end of which is connected to the inside of the glass tube and the other end is extended. A vent hole is formed outside the glass stem. 9. The field emission lamp of claim 8, wherein the glass stem of the fixed cathode electrode is provided with two getter devices.