1221182 A7 B7 五、發明説明（1 ) 【本發明之領域】 本發明係關於一種燈管，尤指一種適用於液晶顯示裝 置之燈管。 【本發明之背景】 近年來液晶顯示器普及率愈來愈高，尤其常應用於攜 帶式電子儀器如筆記型電腦等，因此，液晶顯示器之訴求 除了重量輕、體積薄之外，更需要提高亮度、節省電力。 就燈管而言，習用於液晶顯示裝置之燈管多為冷陰極螢光 燈管（CCFL)，一般冷陰極螢光燈管之輝度會隨溫度而變 化，其燈管表面須在例如5 0 °C〜8 5 °C之適當溫度範圍下始 能有良好之輝度與發光效率，超出或低於此溫度範圍，輝 度便會下降。 習用之冷陰極螢光燈管多如第1A與第1B圖所示之兩 種型式。第1 A圖所示之燈管構造具一密閉中空管體1 1 0、 一電極1 1 2與一導體1 1 3，詨管體材質為透明玻璃。燈管 啓動時會散發出大量熱能；若於低溫下操作，無法將燈管 維持於適當溫度，會致使輝度偏低，且啓動電壓過高。 而第1 B圖所示之第二種冷陰極螢光燈管則改良為雙 管結構，其包含一密閉中空外管體1 20，其内部包含一密 閉中空内管體1 2 1，一電極1 2 2以及一導體1 2 3 ;其仲介 於該外管體121與内管體122之間有一中空腔室124。該 腔室1 2 4為眞空狀態，内管體啓動發光時會發散熱量，而 此眞空狀態便可保持燈管之熱量，使燈管維持在高溫狀 4 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁各欄) ϋ· ϋ ki^i —ϋ ϋ 3 »、 · m n n ·ϋ ^^1 ϋ— 、τ 五、發明説明（2 ) 態。雖然可以解決前述燈管賴溫操作時之缺點，但在高 :流或高溫情況下操作，則會因雙管中的熱量無法即時散 致使溫度過高：同樣無法使輝度達到最有效値，且燈 e寺命亦會由於時常處於高溫狀態而降低。 因此，目前仍須—種新的冷陰極螢光燈管，以目前可 ;之=良原燈管之構造，使其在低溫下仍具備有高輝 :::力包壓低《優點；或在高溫下可即時散熱，提高輝 二，照明效率提高，同時可節省電力與成本，更符合市 Μ需求。 發明人爰因於此，本於積極發明之精神，亟思一種可 題之「高效率之燈管」，幾經研究實驗終至 元成此項希惠世人之發明。 【本發明之概述】 本發明之主要目的係在提供一種高效 液晶顯示裝置照明用。 + & @ ，本么月之另目的係在提供一種提高燈管效率之 法，俾能提高亮度、節省電力與成本。 ，，本發明之再-目的係在提供一種提高燈管效率之方 可將燈管散出之熱利用於維持燈管表面溫度，可使燈 管的效率保持在最佳狀態。 ^ 人.為達成上述之目的’本發明係相關於-種燈管，包 …密閉中空管體，具一中空内腔 電極位於該管體之中空内腔室；以及至少-導體:二： 1221182 A7 B7 五、發明説明（3 ) ' --- 貫穿管體之末端管壁並連接該電極； 塗覆有—層絕熱層。 外表面 本發明亦相關於一種燈管，包含：— 密閉中空内管體，具-中空内腔室二 二卜&體所封閉包圍；至少—電極，該電極位於 》 =空内腔室；以及至少一導體，該導體貫穿内；體：： 场g壁並連接該電極；其仲介於該内管體及該外 中空腔室填充有一氣體。 隨間义 本發明又相關於一種提高燈管效率之方法，包冬下 步驟：提供一燈管；以及於該燈管之管體表面塗覆一絕熱 層；其中係控制該燈管表面溫度於5(rc〜85C5c之範圍:了 較佳為控制該燈管表面溫度於6(rc〜75t之範圍内。’ 由於本發明確有增進功效，故依法申請發明專利。 【圖式穩單説明】 弟1 A、圖係習知之兩種冷陰極螢光燈管示意圖。 第2A、_圖係本發明兩種冷陰極螢光燈管較佳實施例 之 (請先閱讀背面之注意事項再填寫本頁各攔) ---------訂--------- 麟· 一示意圖。 【圖號説明】 1 1 0密閉中空管體1 1 1中空腔室 1 13導體 1 1 2電極 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 1221182 A7 B7 五、發明説明（4 ) 120密閉中空外管121密閉中空内管122電極 體 體 124中空外腔室 125中 123導體 空内腔室 21〇密閉中空管體211中空腔室 212電極 213導體 214絕熱層 220密閉中空外管221密閉中空内管222電極 ^ 體 224中空外腔纟225巾空内腔室 體 223導體 【較佳具體實施例之詳細説明】 本發明「高效率之燈管」包含：_密閉中空管體，具 一中空内腔室；至少一電極，該電極位於該管體之 腔室；以及至少一導體，該導體貫穿管體之末端管壁二 接該電極；其中該管體之外表面塗覆有一層絕熱層。該技 體可全部或部分塗覆該絕熱層，視需要決定；其^覆=官 亦視需要決定。管體内表面則塗布有螢光體。 & 該密閉中空管體材質不限。該絕熱層係塗覆於該管體 之外表面。該絕熱層材質不限，較佳為透明絕熱層，更2 為聚碳酸酯（poly carbonates)。該燈管之適用操作環产 溫度不限，可為-20°C〜40°C，較佳為l(TC〜4(rc。衣兄 本發明亦相關於另一種燈管，包含：一矣 在閉中空外 管體，其内包圍有一密閉中空内管體，其材質不限·於二亥 内管體之中空内腔室置有至少一電極；以及至今土〆~導體， ί請先閲讀背面之注意事項再填寫本頁各襴〕 ，裝---------訂--------- 嫌· 7 α^Π82 Α7 Β7 五、發明説明（5 ) '-- $導體貫穿内管體之末端管壁並連接該電極；並有一氣體 填充於該内管體及該外管體間之中空腔室。 該密閉中空外管體與内管體材質不限。該内管體之中央 腔罜為低壓狀態（40t〇rr〜120t〇rr)。介於該内管體及該外 笞胆'間之中主脸▲之壓力幸父佳為一大氣壓或低於一大氣壓 (1 atm)。該外管體表面可選擇性塗覆一層輔助散熱層， 孩輔助散熱層較佳為金屬鍍膜。介於該内管體及該外管體 間之中全腔室之填充氣體種類不限，較佳為空氣或惰性氣 體。 ' 為能讓貴審查委員能更瞭解本發明之技術内容，特 舉較佳具體實施例説明如下。 請參照第2圖，第2A、2B圖係本發明兩種冷陰極螢 光燈管示意圖。第2A圖中所示之燈管為本發明改良第1A 圖中習知技藝所使用之燈管。其構造包括一密閉中空玻璃 管體210，其中空内腔室211中置有一電極212 ; 一導體 213 ’該導體213貫穿管體210之末端管壁管壁並連接該 電極2 1 2 ;其中該管體2丨〇之表面塗覆有一層絕熱層 214 ’其材質為聚碳酸g旨（polycarbonates)厚度可視實際 需求而碉整，較佳為1〜5 um。中空腔室2 1 1中填充有求蒸 氣，管體210之管壁内表面塗覆有螢光物質。 啓動燈管時，電極2 1 2會發出電子束，激發汞蒸氣打 出更多電子束’並將能量傳至螢光物質上，使其發光。發 光的同時亦會有大量熱量散失。而其管體外所塗覆之絕熱 層214便可減少熱量之散失，並減緩熱量散失速率；與習 __ ___8_ 本紙張尺用巾SS家標準（CNS) A4規格（210X297公楚) '' -- (請先閱讀背面之注意事項再填寫本頁各欄) i訂--------- .4#. 1221182 A7 B7 五、發明説明（6 ) - ' 知《同型燈官相較，即使在低溫下操作仍能將燈管維持在 C田恤度’使其維持在輝度效率較高的狀態，不需增加驅 動電壓，節省電力與成本。 “請參照第2B圖，該燈管為本發明改良第…圖中習知 技藝所使用之燈管。該燈管包含··一密閉中空外管體 22〇 ’其/*1包圍有一密閉中空内管體221，該 之中空内腔室置有一兩朽”？ · , W 包極222，以及一導體223，該導體 223貫穿内管體221之末端管壁管壁並連接該電極222 ; f仲介於該内管體221及該外管體22〇間之中空腔室Μ# 有全風’孩空氣壓力為—大氣壓或小於一大氣壓。該 外管體220表面塗覆有一辅助散熱層。 ，官啓動發光狀況如上述。與習知之同型燈管相較， ’、〈間《半眞全狀悲可使散熱速率加快，即使在高溫 與高電流操作條件下亦不會使溫度過高，而能維持在適舍 溫度下，進而提高燈管之輝度與照明效率，大幅節省電力 並減少成本’提昇產品之競爭力。 综上所陳，本發明無論就目的、手段及功效，在在均 顯示其迥異於習知技術之特徵，4「高效率之燈管」之一 大突破，懇請早日賜准專利，實感德便。惟應注意的是， 上迷諸多實施例僅係為了便於説明而舉例而已，本發明所 主張之權利範圍自應以申請專利範圍所述為準， 於上述實施例。 本紙張尺度_ 家標準（CNS) A4規格(210X^7^171221182 A7 B7 V. Description of the invention (1) [FIELD OF THE INVENTION] The present invention relates to a lamp, and more particularly to a lamp suitable for a liquid crystal display device. [Background of the present invention] In recent years, the popularity of liquid crystal displays has been increasing, especially in portable electronic devices such as notebook computers. Therefore, in addition to light weight and thin volume, the demands of liquid crystal displays require increased brightness. Save electricity. As far as lamps are concerned, the lamps commonly used in liquid crystal display devices are mostly cold cathode fluorescent lamps (CCFL). Generally, the brightness of cold cathode fluorescent lamps will change with temperature. ° C ~ 8 5 ° C in the appropriate temperature range can have good brightness and luminous efficiency, beyond or below this temperature range, the brightness will decrease. Conventional cold-cathode fluorescent tubes are generally of the two types shown in Figs. 1A and 1B. The lamp tube structure shown in FIG. 1A has a closed hollow tube body 1 10, an electrode 1 12 and a conductor 1 1 3, and the tube body is made of transparent glass. A large amount of thermal energy is emitted when the lamp is started; if it is operated at a low temperature, the lamp cannot be maintained at an appropriate temperature, which will cause the brightness to be low and the starting voltage to be too high. The second type of cold-cathode fluorescent lamp shown in FIG. 1B is improved to a double-tube structure, which includes a closed hollow outer tube body 120, and the inside includes a closed hollow inner tube body 1 2 1 and an electrode. 1 2 2 and a conductor 1 2 3; a hollow cavity 124 is interposed between the outer tube body 121 and the inner tube body 122. The chamber 1 2 4 is in a hollow state, and the inner tube body emits heat when it starts to emit light, and this hollow state can maintain the heat of the lamp tube, so that the lamp tube is maintained at a high temperature. 4 The paper size applies to the Chinese National Standard (CNS) A4 specifications (210X297 mm) (Please read the notes on the back before filling in the columns on this page) 2) State. Although it can solve the disadvantages of the above-mentioned lamp when it is operated at a high temperature, if it is operated under high flow or high temperature, the temperature in the double tube cannot be dissipated immediately and the temperature is too high: the brightness can not be maximized. The life of Deng e Temple will also decrease due to the high temperature. Therefore, a new type of cold-cathode fluorescent lamp is still needed at present. The structure of Liangyuan lamp makes it still have high brightness at low temperature. It can immediately dissipate heat, improve Huier II, improve lighting efficiency, and save electricity and costs, which is more in line with the needs of the city. Because of this, the inventor, based on the spirit of active invention, was thinking about a problematic "high-efficiency lamp". After several research experiments, Yuancheng finally won this invention that benefited the world. [Summary of the Invention] The main object of the present invention is to provide an efficient liquid crystal display device for lighting. + & @, another purpose of this month is to provide a method to improve the efficiency of the lamp, which can improve the brightness, save electricity and cost. The re-object of the present invention is to provide a way to improve the efficiency of a lamp tube so that the heat emitted from the lamp tube can be used to maintain the surface temperature of the lamp tube, and the efficiency of the lamp tube can be maintained in an optimal state. ^ People. In order to achieve the above-mentioned object, the present invention relates to a kind of lamp tube, which includes a sealed hollow tube body with a hollow inner cavity electrode located in the hollow inner cavity of the tube body; and at least a conductor: two: 1221182 A7 B7 V. Description of the invention (3) '--- Pass through the end wall of the pipe body and connect the electrode; coated with a layer of thermal insulation. The outer surface of the present invention is also related to a lamp tube, comprising:-a closed hollow inner tube body, enclosed by a hollow inner cavity 22 &body; at least-an electrode, the electrode is located in the empty inner cavity; And at least one conductor, the conductor running through the body; the body: the wall of the field g connected to the electrode; the middle of the inner tube body and the outer hollow chamber is filled with a gas. The invention also relates to a method for improving the efficiency of a lamp tube, including the following steps: providing a lamp tube; and coating a surface of the tube body with a heat-insulating layer; wherein the temperature of the surface of the lamp tube is controlled. 5 (rc ~ 85C5c range: It is better to control the surface temperature of the lamp tube in the range of 6 (rc ~ 75t.) Since the present invention does improve the efficacy, it applies for an invention patent in accordance with the law. [Schematic and stable description] Brother 1 A, the picture is a schematic diagram of two kinds of cold cathode fluorescent lamp tubes that are known. 2A, _ picture is the preferred embodiment of the two kinds of cold cathode fluorescent lamp of the present invention (please read the precautions on the back before filling in this (Each page is blocked) --------- Order --------- Lin · A schematic diagram. [Illustration of drawing number] 1 1 0 closed hollow tube body 1 1 1 hollow cavity 1 13 conductor 1 1 2 Electrode This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297 mm) 1221182 A7 B7 V. Description of the invention (4) 120 closed hollow outer tube 121 closed hollow inner tube 122 electrode body 124 hollow outer chamber 125 of 123 conductors, empty inner chamber 21, hermetically sealed hollow tube body 211, hollow chamber 212, electrode 213, conductor 214, heat insulation layer 22 0 Closed hollow outer tube 221 Closed hollow inner tube 222 electrode ^ Body 224 hollow outer cavity 纟 225 towel empty inner cavity body 223 conductor [Detailed description of the preferred embodiment] The "high efficiency lamp tube" of the present invention includes: A closed hollow tube body with a hollow internal cavity; at least one electrode, the electrode being located in the cavity of the tube body; and at least one conductor, the conductor runs through the end wall of the tube body and is connected to the electrode; wherein the tube body The outer surface is coated with a heat-insulating layer. The technology body can be wholly or partly coated with the heat-insulating layer, which is determined as needed; its cover = official also determined as needed. The inner surface of the tube is coated with phosphor. &Amp; The material of the closed hollow pipe body is not limited. The heat insulation layer is coated on the outer surface of the pipe body. The material of the heat insulation layer is not limited, preferably a transparent heat insulation layer, and 2 is a polycarbonate (poly carbonates). The applicable operating temperature of the lamp is not limited, and may be -20 ° C ~ 40 ° C, preferably 1 (TC ~ 4 (rc.). The present invention is also related to another lamp, including: Closed hollow outer tube body, enclosed by a closed hollow inner tube body, the material is not limited to two At least one electrode is placed in the hollow inner cavity of the inner pipe body; and so far, the earth 导体 ~ conductor, please read the precautions on the back before filling in each page on this page], install --------- order-- ------- suspicion 7 α ^ Π82 Α7 Β7 V. Description of the invention (5) '-$ The conductor penetrates the end pipe wall of the inner pipe body and connects the electrode; and a gas is filled in the inner pipe body and The hollow cavity between the outer tube body. The material of the closed hollow outer tube body and the inner tube body is not limited. The central cavity of the inner tube body is in a low-pressure state (40t0rr to 120t0rr). The pressure of the main face ▲ between the inner tube body and the outer biliary cavity is, fortunately, at or below atmospheric pressure (1 atm). The surface of the outer tube body can be optionally coated with an auxiliary heat dissipation layer, and the auxiliary heat dissipation layer is preferably a metal plating film. The type of the filling gas in the whole chamber between the inner pipe body and the outer pipe body is not limited, and air or inert gas is preferred. 'In order to allow your review committee to better understand the technical content of the present invention, the preferred specific embodiments are described below. Please refer to Fig. 2. Figs. 2A and 2B are schematic diagrams of two types of cold cathode fluorescent lamp of the present invention. The lamp shown in FIG. 2A is a lamp used in improving the conventional technique in FIG. 1A according to the present invention. Its structure includes a closed hollow glass tube body 210, in which an electrode 212 is placed in the hollow inner chamber 211; a conductor 213 'runs through the tube wall of the end of the tube body 210 and connects the electrode 2 1 2; The surface of the pipe body 2 is coated with a heat-insulating layer 214 ', and the material is made of polycarbonates. The thickness can be adjusted according to actual needs, and preferably 1 to 5 um. The hollow chamber 2 1 1 is filled with steam, and the inner surface of the pipe wall of the pipe body 210 is coated with a fluorescent substance. When the lamp is started, the electrode 2 1 2 will emit an electron beam, excite the mercury vapor to emit more electron beams' and transfer energy to the fluorescent substance to make it emit light. A large amount of heat is lost at the same time as light is emitted. And the heat-insulating layer 214 coated on the outside of the tube can reduce the heat loss and slow down the rate of heat loss; and __ _8_ This paper ruler towel SS home standard (CNS) A4 specification (210X297 public Chu) ''- -(Please read the notes on the back before filling in the columns on this page) I order --------- .4 #. 1221182 A7 B7 V. Description of the invention (6) Even if it is operated at a low temperature, the lamp can be maintained at the C field level, so that it is maintained in a state of high luminance efficiency, without increasing the driving voltage, saving electricity and costs. "Please refer to Fig. 2B. This lamp is the lamp used in the conventional technique of the improved picture of the present invention. The lamp contains a closed hollow outer tube body 22 'which / * 1 surrounds a closed hollow Inner tube body 221, is there one or two decays in the hollow inner chamber? " · W-wrap pole 222, and a conductor 223 that runs through the end wall of the inner pipe body 221 and connects to the electrode 222; f is hollow between the inner pipe body 221 and the outer pipe body 22 There is full wind in the chamber M #. The air pressure is-atmospheric pressure or less than atmospheric pressure. The surface of the outer tube body 220 is coated with an auxiliary heat dissipation layer. , The officer started the luminous condition as described above. Compared with the conventional lamp of the same type, ', <, and "the half-full-scale sadness can speed up the heat dissipation rate, even under high temperature and high current operating conditions, it will not make the temperature too high, and can be maintained at a suitable temperature. , And then improve the brightness and lighting efficiency of the tube, greatly save electricity and reduce costs, and improve the competitiveness of the product. To sum up, the present invention, regardless of its purpose, means, and effect, shows its characteristics that are quite different from the conventional technology. One of the four breakthroughs in "high-efficiency lamps", I would like to request a quasi-patent at an early date. . It should be noted that many of the above embodiments are merely examples for the convenience of description. The scope of the claims of the present invention shall be based on the scope of the patent application, which is in the above embodiments. Paper size_ CNS A4 size (210X ^ 7 ^ 17