1333226 九、發明說明： 【發明所屬之技術領域】 種場發射像素管。 本發明涉及一種場發射元件，尤其涉及一 【先前技術】 場發射電子源以及利用該電子源轟擊營光物質而發光之 射發光技術已經在場發射平面等領域制細。=1333226 IX. Description of the invention: [Technical field to which the invention pertains] Field emission pixel tube. BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a field emission element, and more particularly to a [prior art] field emission electron source and an illuminating technique using the electron source to bombard a camping material to illuminate in a field emission plane or the like. =
射技術係於真线境下’利科加電場_較端之電= 來，電子轟擊螢光粉發出可絲㈣進躺示。於傳統場發械 子源中’-般採用微細翻金屬尖端或石夕尖端作為電子發射端，隨 著奈米技術之發展’最近還採用奈米碳管作為電子發射端。通 為了有效利用營光粉之發光效率，像素管一般工作於1〇千伏 左右之高壓下，惟，奈米碳管於強雙下很容錢壞，導 不穩定。 x 【發明内容】 有蓉於此，提供-種可崎高壓下穩定卫作之場發射元件實 為必要。 種％發射像素管，其包括：一個中空殼體，該中空殼體具 有出光部，該出光部之内壁依次設有一螢光層和一陽極層，所 述中空殼體畴係真空密封的，該巾空殼㈣有_個金屬筒，該 金屬筒内壁設有一層經固化之漿料層，該漿料層含有導電之奈米 材料，該金屬筒與至少一個陰極電極電連接。 相較於先則技術’所述場發射像素管之金屬筒對電場有很強 之屏蔽作用’將含有奈米碳管之漿料塗於金屬筒之内壁作為陰 極’可有效減弱奈米碳管周圍之電場，使得奈米碳管可以於1〇千 6 1333226 伏或更高之電壓下穩定之工作。 【實施方式】 以下將結合附圖對本發明作進一步詳細說明。 本實施例提供一種場發射像素管10。請參閱圖1與圖2 ,該 場發射像素管10包括：-個中空殼體U，該中空殼體n具有一 出光部12，該出光部12之内壁依次設有一螢光層13和一陽極層 14，所述中空殼體U内部係真空密封的，該中空殼體u内有一The shooting technology is in the real line. The Likoga electric field _ the end of the electricity = come, the electron bombardment of the fluorescent powder can be silk (four) into the lying. In the traditional field source, the use of a fine metal tip or a stone tip as an electron-emitting end, along with the development of nanotechnology, has recently adopted a carbon nanotube as the electron-emitting end. In order to effectively utilize the luminous efficiency of the camping powder, the pixel tube generally works at a high voltage of about 1 kV. However, the carbon nanotubes are very difficult and unstable under the strong double. x [Summary of the Invention] It is necessary to provide a field emission component that is stable under the high pressure of Kasaki. a % emission pixel tube comprising: a hollow housing having a light exiting portion, the inner wall of the light exiting portion being sequentially provided with a phosphor layer and an anode layer, the hollow shell domain being vacuum sealed The towel shell (4) has a metal cylinder, and the inner wall of the metal cylinder is provided with a layer of solidified slurry, the slurry layer containing a conductive nano material, and the metal cylinder is electrically connected to at least one cathode electrode. Compared with the prior art, the metal tube of the field emission pixel tube has a strong shielding effect on the electric field. The slurry containing the carbon nanotubes is applied to the inner wall of the metal tube as a cathode, which can effectively weaken the carbon nanotubes. The surrounding electric field allows the carbon nanotubes to work stably at a voltage of 1,163,333 volts or more. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. This embodiment provides a field emission pixel tube 10. Referring to FIG. 1 and FIG. 2, the field emission pixel tube 10 includes: a hollow housing U having a light exit portion 12, and an inner layer of the light exit portion 12 is sequentially provided with a phosphor layer 13 and An anode layer 14 is internally vacuum-sealed, and the hollow shell u has a
個金屬筒16 ’該金屬筒16内壁設有一層、經固化之聚料層17，該 聚料層Γ7含有導電之奈米材料’該金屬筒16與至少一個陰極電 極電連接於本實施财該金屬筒16分別與兩個陰極電極電連 接’該兩個陰極電極分別為第—陰極電極師第：陰極電極19。a metal cylinder 16' is provided with a layer of a solidified polymer layer 17 on the inner wall of the metal cylinder 16, and the polymer layer 7 contains a conductive nano material. The metal cylinder 16 is electrically connected to at least one cathode electrode. The metal cans 16 are electrically connected to the two cathode electrodes respectively. The two cathode electrodes are respectively a first cathode electrode: a cathode electrode 19.
該中空殼體11内部係真空密封的，於本實施例中，該殼體U 為中空圓柱體，麟殼體u之材料為石英玻璃或玻璃。可以理解 的係，該殼體U還可以係中空之多邊形棱柱，同時該殼體n之 出光部12可以為平面也可以為球面或非球面，本領域技術人員可 以根據實際情況進行選擇。 所述螢光層13沈積於出光部12之内壁上。該營光層13可』 由白色螢光誠彩色$光馳成。當電子轟擊螢光層n時可發: ，色或彩色可見光。所述陽極層i愤在沈積有螢光層Μ之出3 13駐’ 並肋螢光粉發光』 =眚=屬膜’具有良好之輸和鏡面平整度 於本實施例中，該陽極層14為鋁膜。 施例中，所述金屬筒16為—_，且該金屬筒旧 中〜軸垂直於出切12。可以理解的係，該金屬筒16還可以為^ 7 1333226 筒、多邊形筒等其他筒狀結構。 含有導17，該聚料層17 導電之不未材料，所述奈米材料可以選 焚 =碳6〇，奈米碳顆粒、導電金屬或半導體之奈：:太=碳 :!棒，奈米帶及其混合物中之任意-種，本實施例二; 石厌官。將崎之雜層17㈣於金屬筒^， 後用橡皮摩_筒16内壁，使更多之 =其場發射性能。金屬筒16對奈米碳管發射體二 蔽作用姑7料層17邊緣與金屬筒16邊緣之距離，距離越大，屏 強。乍用越強；還取決於金屬筒16之直徑，直徑越小，屏蔽作用越 所述金屬筒16分別與第—陰極電極18和第二陰極電極η電 '。該第-陰極電極18與該第二陰極電極19穿過所述殼體U 、、、延伸至殼體11外部。於第—陰極電極18和第二陰極電極η穿 過之部位雅用玻璃封接技術密封，以保證殼體如部之密封性。 該場發射像素管1G進-步包括—個陽極電極15。該陽極電極 15與陽極層14電連接。該陽極電極15穿過所述殼體U延伸至殼 體11外部。於陽極電極15穿過之部位可採用玻璃封接技術密封， 以保證殼體11内部之密封性。 該場發射像素管10進一步包括一吸氣劑2〇，用於吸附場發射 像素$ 10内殘餘氣體，維持場發射像素管内部之真空度。該 ，氣劑20可以為蒸散型吸氣劑，於殼體11封接後通過高頻加熱 洛鍍之方法形成於靠近第一陰極電極18和第二陰極電極19之殼 體11内壁上。該吸氣劑20也可以為非蒸散型吸氣劑，固定於靠 1333226 ，第陰極電極IS和第二陰極電極之殼體U内壁上，或者固 疋於金屬筒16之内壁或外壁。 該场發射像素管10進一步包括一排氣孔U，該排氣孔U外 /工栗’用以將咸體η抽真空。封裝時，先通過排氣孔21使 %發射像錄1G制—定之真妓後雜行最後之封裝。 田該场發射像素管1Q卫作時，分別給陽極電極Μ與第一陰 極電極18、第一陰極電極19之間加上電磨形成電場，通過電場作 =、金屬® 11内壁之轉層17中之奈米碳管發射出電子，電子 =陽極層14轟擊_ 13，發出可見光。可見光—部分直接從 2Γ2射出，—部分射於祕層14上。陽極層14將其反射並 最終透過出光部12射出。多個這樣之場發射像素管10排列起來 可以進行照明或資訊顯示。 篼术 相較於先前技術，所述場發射像素管10之金屬筒16對電 之屏蔽作用，將含有奈米碳管之褒料塗於金屬筒16之内壁 作為陰極，則可以有效減弱奈米碳管周圍The interior of the hollow casing 11 is vacuum-sealed. In the present embodiment, the casing U is a hollow cylinder, and the material of the casing u is quartz glass or glass. It can be understood that the housing U can also be a hollow polygonal prism, and the light exit portion 12 of the housing n can be a flat surface or a spherical surface or an aspheric surface, and can be selected by a person skilled in the art according to actual conditions. The phosphor layer 13 is deposited on the inner wall of the light exit portion 12. The camping light layer 13 can be made of white fluorescent light. When the electron bombards the fluorescent layer n, it can emit: color or color visible light. The anode layer i is indulged in the deposition of the phosphor layer, and the rib phosphor powder emits light. The film has a good transmission and mirror flatness. In this embodiment, the anode layer 14 It is an aluminum film. In the embodiment, the metal cylinder 16 is -_, and the old cylinder of the metal cylinder is perpendicular to the cutout 12 . It can be understood that the metal cylinder 16 can also be a tubular structure such as a cylinder, a polygonal cylinder or the like. Containing a lead 17, the polymer layer 17 is electrically conductive, the nano material can be selected to be burned = carbon 6 〇, nano carbon particles, conductive metal or semiconductor nene:: too = carbon:! rod, nano Any of the bands and mixtures thereof, this embodiment is two; Place the jade layer 17 (four) on the metal tube ^, and then use the rubber inner tube 16 inner wall to make more = its field emission performance. The metal cylinder 16 has a distance from the edge of the metal tube 16 to the edge of the metal tube 16 for the carbon nanotube emitter. The greater the distance, the stronger the screen. The stronger the enthalpy is, the more the diameter of the metal cylinder 16 is, and the smaller the diameter, the more the shielding effect is, the more the metal cylinder 16 is electrically connected to the first cathode electrode 18 and the second cathode electrode η. The first cathode electrode 18 and the second cathode electrode 19 extend through the casing U and extend to the outside of the casing 11. The portion through which the first cathode electrode 18 and the second cathode electrode η pass is sealed by a glass sealing technique to ensure the sealing property of the casing. The field emission pixel tube 1G further includes an anode electrode 15. The anode electrode 15 is electrically connected to the anode layer 14. The anode electrode 15 extends through the casing U to the outside of the casing 11. The portion through which the anode electrode 15 passes can be sealed by a glass sealing technique to ensure the sealing property inside the casing 11. The field emission pixel tube 10 further includes a getter 2〇 for adsorbing residual gas in the field emission pixel $10 to maintain the vacuum inside the field emission pixel tube. The gas agent 20 may be an evaporable getter formed on the inner wall of the shell 11 adjacent to the first cathode electrode 18 and the second cathode electrode 19 by high-frequency heating and Luo plating after the casing 11 is sealed. The getter 20 may also be a non-evaporable getter fixed to the inner wall of the casing U of the first cathode electrode IS and the second cathode electrode, or to the inner or outer wall of the metal cylinder 16. The field emission pixel tube 10 further includes a vent hole U for extracting a vacuum of the salty body η. In the package, the first emission image is made through the vent hole 21, and the final package is made. When the field emits a pixel tube 1Q, an electric field is applied between the anode electrode Μ and the first cathode electrode 18 and the first cathode electrode 19 to form an electric field, and the electric field is used as a layer of the inner wall of the metal® 11 . The carbon nanotubes emit electrons, and the electrons = the anode layer 14 bombarded _ 13, emitting visible light. Visible light—partially emitted directly from 2Γ2—partially hits the secret layer 14. The anode layer 14 reflects it and finally passes through the light exit portion 12. A plurality of such field emission pixel tubes 10 are arranged to perform illumination or information display. Compared with the prior art, the metal tube 16 of the field emission pixel tube 10 is electrically shielded, and the coating containing the carbon nanotubes is applied to the inner wall of the metal tube 16 as a cathode, which can effectively weaken the nanometer. Around the carbon tube
可以於W千伏或更高之賴下穩定之工作。使心未I 綜上所述，本發明符合發明專利要件，爰依法提出專利申請。 •，以上所述者僅為本個讀錄施对，本發明之範 =上=實施方式為限，舉凡熟習本案浦之人士援依本發明之精 神所作之等效修飾或變化’皆應涵蓋於以下申請專利 【圖式簡單說明】 圖。圖1係本發明實施例提供之場發射像素管之剖面示意 圖2係本發明實施例提供之場發射像素管沿圖1令丑- 9 1333226 π方向之截面示意圖。 【主要元件符號說明】 場發射像素管 10 殼體 11 出光部 12 螢光層 13 陽極層 14 陽極電極 15 金屬筒 16 漿料層 17 第一陰極電極 18 第二陰極電極 19 吸氣劑 20 排氣孔 21It can work stably under W kV or higher. In summary, the present invention is in accordance with the requirements of the invention patent, and the patent application is filed according to law. • The above is only for the purpose of this reading. The scope of the invention is limited to the embodiment. The equivalent modifications or changes made by the person familiar with the case in accordance with the spirit of the invention should be covered. Apply for a patent in the following [Simplified illustration of the drawing]. 1 is a schematic cross-sectional view of a field emission pixel tube according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a field emission pixel tube according to an embodiment of the present invention taken along line λ-91332 π of FIG. [Main component symbol description] Field emission pixel tube 10 Housing 11 Light exit portion 12 Luminous layer 13 Anode layer 14 Anode electrode 15 Metal tube 16 Slurry layer 17 First cathode electrode 18 Second cathode electrode 19 Getter 20 Exhaust Hole 21
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