132.1804 九、發明說明： 【發明所屬之技術領域】 本發明係涉及一種場發射燈管及其製造方法，尤其涉 及一種陽極具有透明導電膜的場發射燈管及其製造方法。 【先前技術】 曰光燈管係曰常生活必需品，包括一透明玻璃管，該 玻璃管内壁塗覆有白色或彩色螢光材料，玻璃管内還充有132.1804 IX. Description of the Invention: The present invention relates to a field emission lamp and a method of manufacturing the same, and more particularly to a field emission lamp having an anode having a transparent conductive film and a method of manufacturing the same. [Prior Art] A neon lamp is a common necessities, including a transparent glass tube, the inner wall of which is coated with white or colored fluorescent material, and the glass tube is also filled with
汞蒸汽。該日光燈管的原理係藉由熱陰極發射的電子激發 汞蒸汽發出紫外光，而紫外光照射於螢光材料上發出白色 光或彩色的光。日光燈管係一種熱陰極光源，發光效率比 白熾燈高。惟，該種燈管内使用的汞蒸汽有毒，當燈管被 打破之後，汞蒸汽流出外面將對環境及人體造成危害。 爲解決上述問題，一種冷陰極的場發射燈管被提供， 包括陰極及與陰極對應設置的陽極。陰極表面設有包含奈 米反ί的電子發射層，極與電子發射層對應設置榮光Mercury vapor. The principle of the fluorescent tube is that the electrons emitted from the hot cathode excite the mercury vapor to emit ultraviolet light, and the ultraviolet light is irradiated onto the fluorescent material to emit white light or colored light. The fluorescent tube is a hot cathode light source with higher luminous efficiency than incandescent lamps. However, the mercury vapor used in this type of lamp is toxic. When the lamp is broken, the mercury vapor will flow out to the outside, which will cause harm to the environment and the human body. To solve the above problems, a cold cathode field emission lamp is provided, including a cathode and an anode disposed corresponding to the cathode. The surface of the cathode is provided with an electron-emitting layer containing a nano-electrode, and the electrode is provided with a glory corresponding to the electron-emitting layer.
層。當於陰極與陽極之間施加一定電壓時，陰極電子發射 層的奈米碳管發射電子，陽極的螢光層於電子的爲擊發 光。該種場發射燈管能耗低，發光效率高，對環境及 無危害。 傳統技術上，該種冷陰極的場發射燈管於營光層下設 置有透明導魏’該透明導電膜與陰極的陰極發射 作用形成外加電場，_，螢光層發出的光奴透明導電 膜向外發散’ _，使祕冷陰極場發紐 電膜應具有導電性及透光性。目前上使料透明導電 6 132.1804 膜多爲氧化銦錫薄膜，該種氧化銦錫薄膜係藉由磁控濺射 的方法蒸鍍而形成。該種製備氧化銦錫薄膜的方法^可實 現大批量生産，惟所需的生産材料及製備過程的成本均轸 高。 x —有鑒於此，確有必要提供一種場發射燈管，該場發射 燈管的陽極採用的透明導電膜具有較好的導電性及^光 性；同時，該場發燈管的製造方法較爲簡單、效率較高、 成本較低。 【發明内容】 下面將藉由實施例進一步詳細說明一種場發射燈管及 其製造方法，該場發射燈管的陽極採用的透明導電膜具有 較好的導電性及透光性；同時，該場發燈管的製造方法較 爲簡單、效率較高、成本較低。 一種場發射燈管，包括一透明玻璃管、陽極及設置於 玻璃管内的陰極，該陰極設有包含奈米碳管的電子發射 層，該極包括形成於玻璃管内壁上的奈米碳管透明導電 膜、形成於奈米碳管透明導電膜上的螢光層以及至少一沿 玻璃管轴向延伸的導電線。 一種場發射燈管的製造方法’包括：提供一透明玻璃 管，該玻璃官的内壁上形成奈米碳管透明導電膜、形成於 奈米碳管透明導電膜上的螢光層及至少一沿玻璃管軸向延 伸的導電線；以及，提供陽極電極、陰極電極'陰極發射 體及封裝件並將其裝設於玻璃管上從而形成場發射燈管。 與先前技術相比較，本發明場發射燈管中陽極的透明 7 電膜由奈米碳管形成，因奈米碳管具有良好的導電特 性，故而本實施例場發射燈管中的透明導電膜具有較好透 光性亦具有較好的導電性能；另，本實施例場發射燈管内 壁上形成至少—導電線’當於透明導電財有電流通過 時’該導電線可降低透明導電膜的電位差，使場發射燈管 2光均勻。同時’本實施例場發射燈管的製造方法較爲 簡單、效率較高且製造成本較低。 【實施方式】 下面將結合附圖對本發明場發射裝置及其製造方法作 進一步之詳細說明。 Μ明參閱圖1，本實施例場發射燈管1〇包括一透明玻璃 官20、陽極30、陰極40以及兩封裝件5〇。 玻璃管20爲條形管狀結構，具有兩開口端22。封裝 件50^置於玻璃f 2G的開σ端處從而於玻璃管2()内部形 成-密封空間，該封裝件5〇可由玻璃材料或其他材料製 成，當封裝件5G爲玻璃材料時，優選先前技術中的玻璃芯 柱作爲封裝件5G。其中，—封裝件5G上設置-排氣管52， 該排氣管52的-端與玻璃管2〇的密封空間相連通，另— 端延伸出封裝件5G之外形成排氣孔54。排氣孔54可藉由 外接真空圖中未顯示）排氣從*於綱管2q内形成真 空’排氣後排氣孔54被密封。 陽極30包括形成於玻璃管2〇内壁上的奈米碳管透明 導電膜32、形成於奈米碳管透明導賴&上的營光層私 及陽極電極36。其中’奈米峰管透明導電膜⑽中的奈米 炭S的長度優選爲1〜⑽微米’最優地，奈米碳管的長度 約爲=微米；奈米碳管的直徑優選爲卜⑽奈米。營光ς 34覆盖於奈米碳管透明導電膜⑽上，其靠近陽極電極加 的邊緣與奈米碳管透明導電膜32靠近陽極電極36的邊緣 相隔一定的距離從㈣成—奈*碳管透明導細32的接 露區320。優選地，該裸露區320下設置石墨乳38，該石 墨礼38可有效俩奈米碳管透明導電膜％與陽極電極％ 的電性導通。營光声!田古 堂摘34選用同效、低細電壓及長餘輝的 螢光層’營光層34的螢光材料根據實際需要可選用白 光材料或彩色螢光材料。 I祕電極36包括陽極引線彈簧片、陽極引線柱咖 及陽極引線364。其中，陽㈣線彈簧片_設置於太米 ㈣的~上娜姆透明i電 、私導通。％極引線柱362固定於一封裝件50上且 璃官2G轴向平行設置。該陽極引線柱362的-端通過 祕引線364與陽極引線彈簧片電性導通，另一端延 :出封裝件5G外作爲陽極2G的外接電極㈣。陽極 =目?係提供陽極2〇與外界電性導接的外接電極 36 36 ^ ^ * w極電極36可僅爲一導電柱哎導雷 管透明導電膜32且另一端延伸出封二；；一端連接奈米碳 外接電極366 ;或者陽_ 36包 明導電膜…與陽極引^ v通、另1延伸出縣件5_陽極2q的外接電極· 的導電柱或導電絲。 請配合參閱圖2，陽極30進-步包括至少一沿玻璃營 20的轴向延伸的導電線39，其可設置於玻璃管2G的内壁 與奈米碳管透轉麵32之間，亦可設餘奈料管透明 導電膜32與勞光層34之間。該導電線％靠近陽極電極 36的末端通過透明導電膜32的裸露區320與陽極電極36 電Is導通®導電線39爲多條時，該多條導電線39沿玻 璃管别的軸向延伸且彼此間隔分佈。該導電線39可爲銀 線或，化姻錫線，其寬度優選爲1G〜1咖微米。圖2中顯 :一、的陽極30 &置兩條沿玻璃管gg轴向延伸並對稱分佈的 導電線39，且該導電線39設置於玻璃管20的内壁與奈米 碳管透明導電膜32之間。 匕括陰極發射體42及陰極電極44 〇請配合參 === ⑽&包括—細導輸2Q及形成於 420表面的電子發射層似。其中，導電體爲 、、。。構或絲結構，其直徑優選G.卜2 =合金製成，優選地，導電請由錄製成。= 體的一端通過-錄管46與一封裝件5〇的頂部相固 二d與Γ電極44敗。該陰極電極44固定於具 有排乳官52 _件5G上，其爲—導電柱。該陰 4 =與陰極發射體42相連接，另一端延伸出封裝件即 設接電極姻。可選擇地，—彈簧（圖未示） 42於接^或"關門卡42與陰極電極44之間’當陰極發射體 、$ D職而受熱或冷卻時，陰極發射體拉 2產生熱脹或冷縮，此時，彈簧可起_節與平衡的作用。 陰極電極44的作關提供陰極4{)與外界電性導接的外接 電極440 ’該陰極電極44的結構可採用其他的形式，如险 極發射體42的末端可直接延伸出封裝件5〇之外作爲陰^ 的外接電極440。電子發射層422包含玻璃、以及複數 分散於玻璃内的可發射電子的奈米碳管424及導電金屬顆 粒428。其中，奈米碳管的長度優選爲h〇〇 優選爲1〜100奈米。 兩吸氣劑裝置70設置於具有排氣管52及固定陰極電 木^4的封裝件5〇上。吸氣劑裝置7〇中的吸氣劑可消耗玻 璃e 20内殘留的氣體以及於場發射燈管1〇的使用過程中 螢光層34放出的氣體，從而確保場發射燈管1()於使用中 具有良好的真空度。 使用時，於奈米碳管透明導電膜32與陰極4〇的電子 發射層422之間提供一電場，奈米碳管似於電場作用下 發射電子’電子加速撞擊陽極的#光層34，當螢光層34 採用彩色瑩光材料時，會發出彩色光，當螢光層34採用白 色螢光材料時’會發出白色光。$，於奈米碳管透明導電 膜32中有電流通過時，該導電線如可有效降低奈米破管 透明導電膜32的電位差’從而防止場發射燈管1()的發光 呈現有梯度的不均自，進*使場發射燈管1G的發光均勻。 上述場發射燈管1〇的製造方法主要包括以下步驟： 步驟（一），提供一透明玻璃管20，該玻璃管的内壁 上形成奈米碳管透明導電膜32、形成於奈米碳管透明導電 11 丄3 膜32上的螢光層34及至少-沿玻璃管2G的軸向導電 線39。 其中，製造上述玻璃管2〇的方法主要包括以下步鄉： ，於玻璃管20内壁沿軸向塗覆至少一寬度爲1〇〜麵微 米的導電榮料，並供乾以形成導電線如，·其中，導電黎科 中含有一定量的有機及導電金屬微粒，導電金屬微雜 由導電材料3U，如賴粒或氧化鱗錄，其可預先採 用球磨機進行_，直徑優選爲G.〇5〜2微米，該導電渡科 ^形成係料電金屬微粒及玻璃錄於有機載财進行充 分混合而形成。有機載體主要爲由作爲溶劑的松油醇、作 爲增塑劑的少量鄰笨二甲酸二丁酷及作爲穩定劑的少量乙 基纖維素形成的混合劑。混合過程優選爲6〇〜8『c下滿合 3 5 i枯爲更好的分散導電金屬微粒及玻璃微粒，苛進 、步使用低功率的超聲波對含有導電金屬微粒的有機溶劑 ，订，聲波震蕩’後再對其進行離心'處理。當石墨乳38被 °又置^ ’塗覆導電聚料後，於玻璃管20的-端塗上石墨乳 38 ’該石墨乳38壓至導電祕的一端。 .將玻璃f* 置人爐巾魏氣紐絲體的保護下退 、P ;氮氣或惰性氣體的保護下，先加熱至320°C左右 保溫約10分鐘，再升溫至43(TC左右保溫約30分鐘，最 後降至至溫取出玻璃管2〇，該過程的目的係去除導電聚料 中的有機載體。 於屯成導電線39的玻璃管2〇上形成奈米碳管聚料層 並烘乾； 12 於烘乾的奈米碳管漿料層上形成一螢光粉層； 將形成奈米碳管漿料層及螢光粉層的玻璃管20於氮 氣或惰性氣體的保護下升溫至32(rc左右保溫約20分鐘， 再降至室溫，從而得到具有奈米碳管透明導電膜32、螢光 層34及導電線39的玻璃管2〇。 其中，上述於玻璃管20上形成奈米碳管漿料層的方法 爲：將玻璃管2G -端封閉並將玻璃管2Q的封閉端向下賢 直放置；將奈米碳管漿料倒入玻璃管20内；打開玻璃管 2〇的封閉端，奈米碳管漿料藉由重力的作用自然流下，部 分奈米碳管㈣藉由吸附侧於玻璃管2G崎上形成所 需的奈米碳管漿料層。形成奈米碳管漿料層的過程應於潔 斤的壤境内進行’優選地，環境内的灰塵度應小於_ mg/m3。 其中’上述奈米碳管漿料的製備方法包括以下步驟： 、i製備有機載體；其中，該有機載體爲由作爲溶劑的松 油醇、作為増塑劑的少量鄰苯二曱酸二了§旨及作爲 一里G暴纖維素形成的混合劑；有機載體的製備過程 二由’谷加熱及搜拌的條件下將乙基纖維素溶解到松油 醇中；以及，加入鄰苯二曱酸二丁酯於同樣油浴加熱的條 件下持續_ —定時間即可得到有機載體。其中，優選地， 2油醇、乙基纖維素及鄰苯二曱酸二丁酯於混合劑中的質 =百分比分別約爲90%、5%和5% ;加熱溫度爲80〜11(TC， 瑕優爲100°C ;持續擾拌時間爲10〜25小時，最優爲 時。 ，J、 13 1321804 將粉末狀奈米碳管於二氣乙烧溶液中用破碎機分散後 再進行超聲分散形成奈米破管溶液·’其中’奈米碳管可預 先通過化學氣相沈積法、電弧放電法或鐳射蒸發法等先前 的技術製備，長度優選爲卜1〇0微米’直徑優選爲1〜100 奈米。奈米碳管與二氣乙烷的比例優選爲··每兩克奈米碳 管需要約500毫升的二氯乙烷。破碎機分散的時間優選爲 5〜30分鐘’最優爲20分鐘，超聲分散的時間優選爲1〇〜4〇 分鐘，最優爲30分鐘。 過濾奈米碳管溶液；其中’奈米碳管溶液可選用筛網 過濾’最優地’選用400目的篩網過濾奈米碳管溶液從而 可得到優選直徑及長度的奈米碳管。 將奈米碳管溶液加入有機載體中同時利用超聲充分分 散；其中，溶液中的奈米碳管與有機載體的質量比優選爲 15 : 1 ;超聲分散的時間優選爲30分鐘。 於水浴條件下加熱混有奈米碳管溶液的有機載體直到 得到具有合適濃度的奈米碳管漿料爲止；其中，奈米碳管 漿料中奈米碳管的濃度可影響所得到的奈米碳管透明導電 ^的透光性能及導電性能。當㈣+奈米碳管的濃度較高 時，得到的奈米碳管透料f膜騎光率較低*導電性能 心好’反之H财奈米碳管的濃度健時，得到的奈 米碳管透明導電膜的透光率較高而導電性能較弱。優選 地^於上述製備過程中選用2克奈純管、、約500毫升 的:氣乙烧及奈米碳管與有機载體的質量爲15 : i時，於 水冷加熱下將混有奈米碳管溶液的有機載體蒸發得到測 14 1321804 宅升的奈米碳官㈣。其巾，水浴加熱溫度優選爲9(rc。 上述製造玻射20的方法中將導電線39形成於玻璃 官20内壁與奈米碳透明導電膜32之間，改變上述步驟 的順序即可將導魏39形•奈米碳管義賴犯與營 光層34之間。 步驟（二），提供陽極電極36、陰極電極44、陰極發 射體42以及封裝件5〇並將其袭設於玻璃管上從而形成 場發射燈管10。Floor. When a certain voltage is applied between the cathode and the anode, the carbon nanotubes of the cathode electron-emitting layer emit electrons, and the fluorescent layer of the anode is emitted by the electrons. The field emission lamp has low energy consumption, high luminous efficiency, and no harm to the environment. Conventionally, the cold cathode field emission lamp is provided with a transparent guide under the camping layer. The transparent conductive film forms a applied electric field with the cathode of the cathode, and the photo-transparent transparent conductive film is emitted from the phosphor layer. Disperse outward _, so that the cold cathode field should be electrically conductive and translucent. At present, the material is transparent and conductive. The 13 132.1804 film is mostly an indium tin oxide film, and the indium tin oxide film is formed by vapor deposition by magnetron sputtering. The method for preparing an indium tin oxide film can be mass-produced, but the required production materials and the cost of the preparation process are both high. x - In view of this, it is indeed necessary to provide a field emission lamp, the transparent conductive film of the anode of the field emission lamp has better conductivity and lightness; meanwhile, the manufacturing method of the field lamp is comparative Simple, efficient, and low cost. SUMMARY OF THE INVENTION Hereinafter, a field emission lamp and a manufacturing method thereof will be further described in detail by using an embodiment, wherein a transparent conductive film of an anode of the field emission lamp has good conductivity and light transmittance; The manufacturing method of the lamp tube is simple, efficient, and low in cost. A field emission lamp comprising a transparent glass tube, an anode and a cathode disposed in the glass tube, the cathode being provided with an electron emission layer comprising a carbon nanotube, the pole comprising a carbon nanotube formed on the inner wall of the glass tube is transparent a conductive film, a phosphor layer formed on the carbon nanotube transparent conductive film, and at least one conductive line extending in the axial direction of the glass tube. A method for manufacturing a field emission lamp includes: providing a transparent glass tube, a transparent conductive film of a carbon nanotube formed on the inner wall of the glass, a phosphor layer formed on the transparent conductive film of the carbon nanotube, and at least one edge An electrically conductive wire extending axially of the glass tube; and an anode electrode, a cathode electrode 'cathode emitter and a package are provided and mounted on the glass tube to form a field emission lamp. Compared with the prior art, the transparent 7 electric film of the anode in the field emission lamp of the present invention is formed by a carbon nanotube. Since the carbon nanotube has good electrical conductivity, the transparent conductive film in the field emission lamp of the present embodiment has Preferably, the light transmittance also has good electrical conductivity; in addition, at least the conductive line is formed on the inner wall of the field emission lamp of the present embodiment. When the transparent conductive current passes, the conductive line can reduce the potential difference of the transparent conductive film. , so that the field emission lamp 2 is even. At the same time, the manufacturing method of the field emission lamp of the present embodiment is simple, efficient, and low in manufacturing cost. [Embodiment] The field emission device of the present invention and a method of manufacturing the same will be further described in detail below with reference to the accompanying drawings. Referring to Figure 1, the field emission lamp 1 of the present embodiment includes a transparent glass member 20, an anode 30, a cathode 40, and two packages 5'. The glass tube 20 is a strip-shaped tubular structure having two open ends 22. The package member 50 is placed at the open σ end of the glass f 2G to form a sealed space inside the glass tube 2 (), and the package 5 〇 can be made of a glass material or other material, when the package 5G is a glass material, A glass stem of the prior art is preferred as the package 5G. Wherein, the package 5G is provided with an exhaust pipe 52, the end of which is in communication with the sealed space of the glass tube 2, and the other end extends out of the package 5G to form a vent hole 54. The vent hole 54 can be sealed from the inside of the tube 2q by a venting opening venting port 54 by an exhaust gas (not shown in the external vacuum diagram). The anode 30 includes a carbon nanotube transparent conductive film 32 formed on the inner wall of the glass tube 2, and a camping layer private and anode electrode 36 formed on the carbon nanotube transparent guide. The length of the nanocarbon S in the 'nano peak tube transparent conductive film (10) is preferably 1 to 10 micrometers 'optimally, the length of the carbon nanotubes is about = micron; the diameter of the carbon nanotubes is preferably (10) Nano. The camping light 34 is covered on the carbon nanotube transparent conductive film (10), and the edge adjacent to the anode electrode is separated from the edge of the anode electrode 36 by a certain distance from the edge of the carbon nanotube transparent conductive film 32 from (4) to Ny* carbon tube The exposed area 320 of the transparent guide 32. Preferably, graphite water 38 is disposed under the bare area 320, and the graphite ink 38 can effectively electrically conduct the carbon nanotube transparent conductive film % and the anode electrode %. Yingguangsheng! Tiangutang extract 34 uses the same effect, low-voltage and long afterglow phosphor layer. The fluorescent material of the camping layer 34 can be white light material or color fluorescent material according to actual needs. The I-electrode electrode 36 includes an anode lead spring piece, an anode lead post, and an anode lead 364. Among them, the Yang (four) line spring piece _ is set in the Taimi (four) ~ Shang Namu transparent i electric, private conduction. The % pole lead post 362 is fixed to a package 50 and the glass 2G is axially disposed in parallel. The end of the anode lead post 362 is electrically connected to the anode lead spring piece through the secret lead 364, and the other end is extended from the outside of the package 5G as the external electrode (4) of the anode 2G. The anode electrode is an external electrode 36 that provides electrical connection between the anode 2 and the outside. 36 ^ ^ * The w electrode 36 can be only a conductive pillar 哎 the detonator transparent conductive film 32 and the other end extends out of the seal; The nano carbon external electrode 366 is connected; or the conductive film is connected to the anode and the conductive electrode or the conductive wire of the external electrode of the anode 5q. Referring to FIG. 2, the anode 30 further includes at least one conductive line 39 extending along the axial direction of the glass battalion 20, which may be disposed between the inner wall of the glass tube 2G and the carbon nanotube transmissive surface 32. A gap between the transparent conductive film 32 and the light-resistant layer 34 is provided. When the conductive line % is close to the end of the anode electrode 36 through the bare region 320 of the transparent conductive film 32 and the anode electrode 36 is electrically connected to the conductive line 39, the plurality of conductive lines 39 extend along the other axial direction of the glass tube. They are spaced apart from each other. The conductive line 39 may be a silver wire or a dowry tin wire, and the width thereof is preferably 1 G to 1 coffee micron. 2, the anode 30 & two conductive lines 39 extending along the axial direction of the glass tube gg and symmetrically distributed, and the conductive line 39 is disposed on the inner wall of the glass tube 20 and the transparent conductive film of the carbon nanotube Between 32. The cathode emitter 42 and the cathode electrode 44 are combined with the reference === (10) & include - fine conduction 2Q and an electron-emitting layer formed on the surface of 420. Among them, the electrical conductors are , . . The structure or the wire structure, whose diameter is preferably made of G.b 2 = alloy, preferably, the conductivity is recorded by. = One end of the body passes through the -recording tube 46 and is fixed to the top of a package 5〇. The cathode electrode 44 is fixed to the squirting member 52-piece 5G, which is a conductive column. The cathode 4 = is connected to the cathode emitter 42, and the other end extends out of the package to be connected to the electrode. Alternatively, a spring (not shown) 42 is connected between the contact card 42 and the cathode electrode 44. When the cathode emitter, $D is heated or cooled, the cathode emitter pulls 2 to generate thermal expansion. Or cold shrink, at this time, the spring can play the role of _ section and balance. The cathode electrode 44 is provided to provide an external electrode 440 that is electrically connected to the outside of the cathode. The structure of the cathode electrode 44 can take other forms. For example, the end of the emitter emitter 42 can directly extend out of the package. The external electrode 440 is used as a cathode. The electron emission layer 422 comprises glass, and electron-emitting carbon nanotubes 424 and conductive metal particles 428 dispersed in the glass. Among them, the length of the carbon nanotubes is preferably h 〇〇 preferably from 1 to 100 nm. The two getter devices 70 are disposed on a package 5 having an exhaust pipe 52 and a fixed cathode block. The getter in the getter device 7〇 can consume the gas remaining in the glass e 20 and the gas emitted from the fluorescent layer 34 during use of the field emission lamp 1〇, thereby ensuring that the field emission lamp 1() It has a good vacuum in use. In use, an electric field is provided between the carbon nanotube transparent conductive film 32 and the electron emission layer 422 of the cathode 4, and the carbon nanotube emits electrons under the action of an electric field to accelerate the impact of the #光层34 of the anode. When the fluorescent layer 34 is made of a color fluorescent material, it emits colored light, and when the fluorescent layer 34 is made of a white fluorescent material, it emits white light. When there is a current passing through the carbon nanotube transparent conductive film 32, the conductive wire can effectively reduce the potential difference of the nano-transparent transparent conductive film 32, thereby preventing the luminescence of the field emission lamp 1 () from being gradient. Uneven, enter* to make the field emission lamp 1G shine evenly. The manufacturing method of the above field emission lamp 1 主要 mainly comprises the following steps: Step (1), providing a transparent glass tube 20, a carbon nanotube transparent conductive film 32 is formed on the inner wall of the glass tube, and is formed on the carbon nanotube transparent The phosphor layer 34 on the conductive film 11 is at least a conductive line 39 along the axial direction of the glass tube 2G. Wherein, the method for manufacturing the above glass tube 2〇 mainly comprises the following steps: applying at least one conductive glazing material having a width of 1 〇 to a micron in the axial direction of the inner wall of the glass tube 20, and drying for forming a conductive line, for example, · Among them, the conductive Rico contains a certain amount of organic and conductive metal particles, and the conductive metal is miscellaneously composed of a conductive material 3U, such as a granule or an oxidized scale, which can be preliminarily carried out by a ball mill, and the diameter is preferably G.〇5~ At 2 micrometers, the conductive metal is formed into a metal material and the glass is recorded in an organic carrier for thorough mixing. The organic vehicle is mainly a mixture of terpineol as a solvent, a small amount of dibutyl benzoic acid as a plasticizer, and a small amount of ethyl cellulose as a stabilizer. The mixing process is preferably 6〇~8“c under fullness 3 5 i is used to better disperse conductive metal particles and glass particles, and the use of low-power ultrasonic waves for organic solvents containing conductive metal particles is required. After the shock 'after centrifugation' treatment. After the graphite emulsion 38 is coated with the conductive polymer, the graphite emulsion 38 is applied to the end of the glass tube 20 to pressurize the end of the conductive emulsion 38. Put the glass f* in the towel to protect the Weixin silk body from the protection, P; under the protection of nitrogen or inert gas, first heat to about 320 °C for about 10 minutes, then heat up to 43 (about TC insulation) After 30 minutes, the temperature was finally lowered to the temperature to remove the glass tube. The purpose of this process was to remove the organic carrier in the conductive polymer. The carbon nanotube layer was formed on the glass tube 2 of the conductive line 39 and baked. Drying; 12 forming a phosphor layer on the dried carbon nanotube slurry layer; heating the glass tube 20 forming the carbon nanotube slurry layer and the phosphor layer under the protection of nitrogen or an inert gas to 32 (the rc is kept for about 20 minutes, and then cooled to room temperature, thereby obtaining a glass tube 2 having a carbon nanotube transparent conductive film 32, a fluorescent layer 34, and a conductive wire 39. The above is formed on the glass tube 20. The carbon nanotube slurry layer is obtained by sealing the 2G-end of the glass tube and placing the closed end of the glass tube 2Q downward; pouring the carbon nanotube slurry into the glass tube 20; opening the glass tube 2〇 At the closed end, the carbon nanotube slurry naturally flows down by the action of gravity, and some of the carbon nanotubes (4) are sucked by The desired carbon nanotube slurry layer is formed on the side of the glass tube 2G. The process of forming the carbon nanotube slurry layer should be carried out in the soil of the japonica soil. Preferably, the dust in the environment should be less than _ mg. /m3. wherein the method for preparing the above-mentioned carbon nanotube slurry comprises the following steps: i, preparing an organic vehicle; wherein the organic carrier is a terpineol as a solvent, and a small amount of phthalic acid as a plasticizer Secondly, the purpose is to use as a mixture of G-cellulosic cellulose; the preparation process of organic carrier is to dissolve ethyl cellulose into terpineol under the condition of 'valley heating and mixing; and, to add ortho-benzene The dibutyl phthalate is heated in the same oil bath for a certain period of time to obtain an organic vehicle. Among them, preferably, 2 oleyl alcohol, ethyl cellulose and dibutyl phthalate are mixed. The mass = percentage is about 90%, 5% and 5% respectively; the heating temperature is 80~11 (TC, 瑕 is 100 °C; the continuous scramble time is 10~25 hours, the optimum is time. , J , 13 1321804 Disperse the powdered carbon nanotubes in a two-gas sulphur solution with a crusher Ultrasonic dispersion to form a nanotube breaking solution · 'The 'nanocarbon tube can be prepared in advance by a prior art such as chemical vapor deposition, arc discharge or laser evaporation, and the length is preferably 1 〇 0 μm. The diameter is preferably 1 to 100 nm. The ratio of carbon nanotubes to di-ethane is preferably about 500 ml of dichloroethane per two grams of carbon nanotubes. The time for dispersion of the crusher is preferably 5 to 30 minutes. The optimum time is 20 minutes, and the ultrasonic dispersion time is preferably 1 〇 to 4 〇 minutes, preferably 30 minutes. Filtering the carbon nanotube solution; wherein the 'nano carbon tube solution can be selected by screen filtration 'optimally' A 400 mesh screen is used to filter the carbon nanotube solution to obtain a carbon nanotube of preferred diameter and length. The carbon nanotube solution is added to the organic vehicle while being sufficiently dispersed by ultrasound; wherein the mass ratio of the carbon nanotubes to the organic vehicle in the solution is preferably 15:1; the time of ultrasonic dispersion is preferably 30 minutes. The organic carrier mixed with the carbon nanotube solution is heated under water bath conditions until a suitable concentration of the carbon nanotube slurry is obtained; wherein the concentration of the carbon nanotubes in the carbon nanotube slurry can affect the obtained naphthalene The transparent conductivity and conductivity of the carbon nanotubes are transparent. When the concentration of (4)+nanocarbon tubes is high, the obtained carbon nanotubes have a low light-emitting rate of the f-film. *The conductivity is good. The reverse is the concentration of the carbon nanotubes. The carbon tube transparent conductive film has a high light transmittance and a weak conductive property. Preferably, in the above preparation process, 2 g of pure tube, about 500 ml of: gas-fired and carbon nanotubes and the organic carrier have a mass of 15: i, and the mixture is mixed with water under heating. The organic carrier of the carbon tube solution was evaporated to obtain the carbon carbon (4) of 14 1321804. The towel and the water bath heating temperature are preferably 9 (rc. In the above method of manufacturing the glass 20, the conductive wire 39 is formed between the inner wall of the glass member 20 and the nano-carbon transparent conductive film 32, and the order of the above steps can be changed. Between the Wei 39-nano carbon nanotubes and the camping layer 34. In step (2), the anode electrode 36, the cathode electrode 44, the cathode emitter 42 and the package 5 are provided and placed on the glass tube. The field emission lamp 10 is thus formed.
、不上所述本發明確已符合發明專利之要件，遂依法 提出專射請。惟’以上所述者僅為本發明之雛實施例， 自不能以此關本案之申料利細。舉凡熟悉本案技藝 =人士板依本發明之精神所作之紐料或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】The invention does not meet the requirements of the invention patent, and the special invention is required according to law. However, the above-mentioned ones are only examples of the present invention, and it is not possible to close the application of this case. Anyone familiar with the skill of the case = the board or the changes made by the board in accordance with the spirit of the invention shall be covered by the following patent application. [Simple description of the map]
圖1係本發明實施例場發射燈管的結構示意圖。 圖2係圖1中玻璃管的軸截面的剖視圖。 圖3係圖1沿ΙΠ_ΙΠ方向的剖視放大圖。 【主要元件符號說明】 場發射燈管 10 開口端 22 透明導電膜 32 螢光層 34 陽極引線片 360 陽極引線 364 玻璃管 20 陽極 30 裸露區 320 陽極電極 36 陽極引線柱 362 陽極的外接電極 366 15 1321804 石墨乳 38 導電線 39 陰極 40 陰極發射體 42 導電體 420 電子發射層 422 奈米碳管 424 玻璃 426 導電金屬顆粒 428 陰極電極 44 陰極的外接電極 440 鎳管 46 封裝件 50 排氣管 52 排氣孔 54 吸氣劑裝置 70 161 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 axial section of the glass tube of Figure 1. Figure 3 is an enlarged cross-sectional view of Figure 1 taken along the ΙΠ_ΙΠ direction. [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 Glass tube 20 Anode 30 Exposed area 320 Anode electrode 36 Anode lead post 362 Anode external electrode 366 15 1321804 Graphite milk 38 Conductive wire 39 Cathode 40 Cathode emitter 42 Conductor 420 Electron emission layer 422 Carbon nanotube 424 Glass 426 Conductive metal particles 428 Cathode electrode 44 External electrode of cathode 440 Nickel tube 46 Package 50 Exhaust pipe 52 Row Air hole 54 getter device 70 16