達編遗.TW2400PA 九、發明說明： 【發明所屬之技術領域】 本發明是有關於-種燈管，且特別是有關於—種應用於顯 示器的背光燈管。 【先前技術】 請同時參照第1A圖，帛1A圖繪示顯示器之背光燈管剖 面圖。背光燈管1〇〇例如為一冷陰極燈管（CCFL)，用以產生光 •線。背光燈管100之構造包括：一燈管本體丨(H、一激發體103、 一組電極例如電極105a及105b與一螢光體107(phosphor layer)。燈管本體101例如為玻璃，激發體1〇3例如為氣態汞， 冷陰極燈管之電極105a及1〇5b係配置於燈管本體ι〇ι内，兩 電極用以產生一電壓差，游離電子撞擊氣態采，在氣態呆能量 釋放時，會產生紫外光去撞擊塗佈於背光燈管1〇〇内的螢光體 107 ’而產生光線。 然而，目如燈管的哥命並無法有效的增加，以下將說明造 φ 成燈管壽命不佳的部分原因。請參照第1B圖，第1B圊繪示第 1A圖中燈管官壁及螢光體沿A A,剖面圖。由於螢光體1 係 塗佈於燈管本體101管壁内層，因此許多激發體1〇3的離子或 釦子會卡在螢光體107的縫隙内而出不來，當時間一長累積卡 住在螢光體107的激發體103 (汞）就會更多，造成燈管壽命 的降低。另外，一般的玻璃含有許多不純物質也會累積在燈管 本體101的管壁及螢光體1〇7之間’例如玻璃内會含有鈉離子 106與汞形成化合物，累積沈澱在燈管本體1〇1的管壁並形成 黑點。因此，對於背光燈管1〇〇而言，汞量將不足以維持原有 的焭度’同時背光燈管也因為可被利用的汞量不足而減少壽命。 5 1322309达二遗. TW2400PA IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a type of lamp, and more particularly to a backlight tube for use in a display. [Prior Art] Please refer to Figure 1A at the same time. Figure 1A shows a cross-sectional view of the backlight tube of the display. The backlight tube 1 is, for example, a cold cathode lamp (CCFL) for generating a light line. The structure of the backlight tube 100 includes: a lamp body 丨 (H, an excitation body 103, a set of electrodes such as electrodes 105a and 105b and a phosphor layer 107. The lamp body 101 is, for example, glass, an excitation body. 1〇3 is, for example, gaseous mercury. The electrodes 105a and 1〇5b of the cold cathode lamp are disposed in the lamp body ι〇ι, and the two electrodes are used to generate a voltage difference, and the free electrons collide with the gaseous state to release the energy in the gaseous state. At this time, ultraviolet light is generated to strike the phosphor 107' coated in the backlight tube 1' to generate light. However, the life of the tube cannot be effectively increased, and the following will be explained. Part of the reason for the poor tube life is shown in Figure 1B. Figure 1B shows the lamp wall and the phosphor along AA in section 1A. The phosphor 1 is applied to the lamp body 101. The inner layer of the tube wall, so that many ions or buttons of the excitation body 1〇3 are stuck in the gap of the phosphor 107, and it is accumulated over a long period of time to accumulate the exciter 103 (mercury) of the phosphor 107. Will be more, resulting in reduced lamp life. In addition, the general glass contains many impure The mass also accumulates between the tube wall of the lamp body 101 and the phosphor 1〇7. For example, the glass contains sodium ions 106 and mercury forming compounds, and accumulates on the tube wall of the lamp body 1〇1 and forms black. Therefore, for the backlight tube, the amount of mercury will not be sufficient to maintain the original twist. At the same time, the backlight tube also reduces the life due to insufficient amount of mercury that can be utilized. 5 1322309
三達編號：TW2400PA 【發明内容】 有鑑於此，本發明的目的就是在提供一種背光燈管，能增 加燈管的壽命及燈管的亮度。 根據本發明的目的，提出一種燈管，係應用於一顯示器 中燈言包括.一燈管本體'一激發體、一組電極及一螢光體。 激發體散佈於燈管本體^電極用以產生―電位差以激發激 發體成為一激態激發體。螢光體塗佈於燈管本體外側。其中當 激〜、激毛體此下降時，激態激發體遂產生紫外光（uv Ligh) 以撞擊燈管本體外側之螢総產生光線。而藉由塗佈螢光體於 燈管本體外側，使激發體不會塞住於螢絲上，以提高燈管之 壽命。 _根據本發明的目的，再提出一種背光燈管，係應用於-顯 :&器之一背光模組中，背光燈管包括：一燈管本體、一激發體、 、’·、電極及螢光體，激發體係散佈於燈管本體内，此組電極 =以產生一電位差以激發該激發體成為一激態激發體，背光燈 …之特徵在於.螢光體係塗佈於燈管本體之外側，其中當激態 激發體能階下降時’激態激發體遂產生紫外光以撞擊該燈管本 體外側之螢光體產生光線。 為讓本發明之上述目的、特徵、和優點能更明顯易懂，下 文特舉-較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 其請參照第2圖，第2圖緣示第一實施例之燈管剖面圖。燈 。。例如疋一为光燈官係應甩於一顯示器之背光模組中， 不器例如為—液晶顯示器。在燈管200中其構造包括：—燈 6 1322309Sanda number: TW2400PA [Summary content] In view of the above, an object of the present invention is to provide a backlight tube which can increase the life of the lamp tube and the brightness of the lamp tube. In accordance with the purpose of the present invention, a lamp is provided for use in a display comprising a lamp body, an actuator, a set of electrodes, and a phosphor. The excitation body is interspersed with the electrode of the lamp body to generate a "potential difference" to excite the excitation body to become an excimer. The phosphor is coated on the outside of the lamp body. When the stimuli ~, the hair body is lowered, the excitatory body 遂 generates ultraviolet light (uv Ligh) to strike the fluorescene outside the lamp body to generate light. By coating the phosphor on the outside of the tube body, the excitation body is not blocked on the filament to improve the life of the tube. According to the object of the present invention, a backlight tube is further applied to a backlight module of a display device, and the backlight tube comprises: a lamp body, an excitation body, an electrode, and an electrode. a phosphor body, the excitation system is dispersed in the lamp body, the electrode of the group=generating a potential difference to excite the excitation body to become an excimer body, and the backlight is characterized in that the fluorescent system is coated on the lamp body The outer side, wherein when the excitatory excitation body energy level decreases, the excimer excitation body generates ultraviolet light to strike the phosphor outside the lamp body to generate light. The above described objects, features, and advantages of the present invention will become more apparent and understood from the appended claims. Fig. 2 is a cross-sectional view showing the lamp of the first embodiment. light . . For example, the light-duty official system should be placed in a backlight module of a display, such as a liquid crystal display. The configuration in the lamp tube 200 includes: - lamp 6 1322309
* 三達編號：TW2400PA 官本體201、一激發體2〇3、一組電極2〇5a、205b及一螢光體 207。燈官本體201係為石英玻璃，激發體2〇3係散佈於燈管本 體201内，此激發體203係可為氣態汞或氣態氙’較佳地係為 氣態汞。而電極205a及電極2〇5b係位於燈管2〇〇之兩側以產 生一電位差並形成一電場，藉由電場内游離的電子撞擊分佈於 燈管本體201内的惰性氣體例如氖氣及氬氣’再去撞擊燈管本 體内之氣態汞，以提高氣態汞之能階。待氣態汞的能階下降時， 氣態汞會釋放輻射能，而其釋放的能量，係以紫外光的形式散 -# 發。經由此紫外光去撞擊燈管本體201外側之螢光體207，螢 光體207吸收此輻射能，最後便產生可見光往B B，方向出光。 而此可見光即為顯示器的光源來源。 而在電極205a及205b之兩側係分別連接一金屬導線21〇a 及210b，使電極205a及205b得以透過金屬導線21〇a及210b 與外界電性連接。而散佈於燈管本體2〇丨内部的惰性氣體，氬 氣或氖氣，係主要作為一緩衝氣體的作用，以防止電子直接撞 擊電極而造成電極的損壞。 在第2圖中，由於螢光體207係直接塗佈於燈管本體2〇1 之外側且其厚度係介於丨〇_2〇μηι之間，為避免暴露於外的螢光 體207與外界產生氧化還原的反應’遂於螢光體2〇7之外側更 坡覆保5蔓膜214。此保護膜214係可阻絕營光體2 〇 7與外界 產生氧化，此保護膜較佳地為氧化釔（γ2〇3)。 在本實施例中，燈管本體201較佳地材質係為一石英玻 璃’此石英玻璃係可使波長小於4〇〇ηπι的紫外光穿透，方可使 塗佈於燈管本體201外之螢光體207吸收能量而產生可見光。 若採取一般玻璃作為燈管本體201，則因為一般玻璃的阻絕性 較強，使紫外光無法穿透玻璃以提供螢光體2〇7足夠能量以產 7* Sanda number: TW2400PA official body 201, an excitation body 2〇3, a set of electrodes 2〇5a, 205b and a phosphor 207. The lamp body body 201 is quartz glass, and the exciter body 2〇3 is dispersed in the lamp body 201. The exciter body 203 may be gaseous mercury or gaseous 氙', which is preferably gaseous mercury. The electrode 205a and the electrode 2〇5b are located on both sides of the lamp tube 2 to generate a potential difference and form an electric field, and the inert gas such as helium and argon distributed in the lamp body 201 is struck by electrons in the electric field. Gas's then hit the gaseous mercury in the lamp body to increase the energy level of gaseous mercury. When the energy level of gaseous mercury decreases, gaseous mercury releases radiant energy, and the energy it releases is in the form of ultraviolet light. After the ultraviolet light strikes the phosphor 207 outside the lamp body 201, the phosphor 207 absorbs the radiant energy, and finally generates visible light to B B to emit light. This visible light is the source of the light source for the display. On the two sides of the electrodes 205a and 205b, a metal wire 21a and 210b are respectively connected, so that the electrodes 205a and 205b are electrically connected to the outside through the metal wires 21a and 210b. The inert gas, argon or helium gas, which is dispersed inside the lamp body 2, acts mainly as a buffer gas to prevent the electrons from directly striking the electrode and causing damage to the electrode. In Fig. 2, since the phosphor 207 is directly applied to the outside of the bulb body 2〇1 and its thickness is between 丨〇_2〇μηι, in order to avoid exposure to the phosphor 207 and The reaction of generating a redox reaction from the outside is carried out on the outer side of the phosphor 2〇7 to cover the 5 vine film 214. The protective film 214 prevents oxidation of the camping body 2 〇 7 from the outside, and the protective film is preferably yttrium oxide (γ 2 〇 3). In this embodiment, the lamp body 201 is preferably made of a quartz glass. The quartz glass can penetrate the ultraviolet light having a wavelength of less than 4 〇〇ηπι, so that it can be coated on the outside of the lamp body 201. The phosphor 207 absorbs energy to generate visible light. If the general glass is used as the lamp body 201, since the glass is generally highly resistant, ultraviolet light cannot penetrate the glass to provide sufficient energy for the phosphor 2 to produce 7
Ξ達編號：TW2400PA 生光線。另外，由於採用石英破璃作為燈管本體2〇ι，在石英 玻璃令不純物，例如納離子，的含量會較—般玻璃來得低、 此燈管本體2(H之管壁亦Η與汞產生化合物，而可提高燈管 的壽命。同時，由於本實施例中螢光體加已直接塗佈於燈管 本體201夕卜因此螢光體2G7與激發體加將不會有任何機合 接觸到，因而確保了激發體的含量維持固定，也將使燈管的^ 用哥命可以大大的提高。 第二實施例 不同於第實知例疋使用冷陰極燈管作為背光燈管，在本 實施例中更可利用外部電極榮光燈管（EEFL)作為背光燈管。請 參照第3圖’帛3圖繪示外部電極螢光燈管剖面圖 極營光燈管_中包括—燈管本體3G1、兩電極⑽及^ 及螢先體307。在燈管本體3()1内仍係散佈激發體3〇3,且勞光 體307係亦塗佈於燈管本體則外，並用保護膜314披覆於榮 光體3〇7外。而其兩電極3㈣及係設置在燈管本體3〇1 之外側。因此，激發辦1Λ 會撞擊至電極咖/3〇5^^=^質係不會有任何機 ^ b上亦增加燈管的壽命。另外，燈 管本體301係亦採用石英玻璃所製成，因此燈管本體如盘永 產生化合物的可能性也就降低。因此，在本實施例中採用外部 電極登光燈管300再加上將螢紐307塗佈於燈管本體3〇1 外，使管内激發體3〇3的含量也係可維持固定，燈管的壽命更 將大幅的增加。 l本.發明上述實施例所揭露之背光燈管，透過設置螢光體於 :光燈S夕卜使激發體如汞不會滲入至螢光體内，另外採用石 ":破璃也使s i不易與汞產生化合物，而造成管内激發體不足 的見象因此本發明之背光燈管遂利用設置螢光體於背光燈 1322309Ξ达号: TW2400PA Raw light. In addition, since the quartz glass is used as the lamp body 2〇, the content of impurities, such as nano ions, in the quartz glass is lower than that of the general glass, and the tube body 2 is also produced by mercury. The compound can improve the life of the lamp. At the same time, since the phosphor addition has been directly applied to the lamp body 201 in this embodiment, the phosphor 2G7 and the exciter will not have any mechanical contact. Therefore, it is ensured that the content of the excited body is maintained constant, and the life of the lamp can be greatly improved. The second embodiment is different from the first embodiment in that a cold cathode lamp is used as the backlight tube, in this embodiment. In the example, the external electrode glory lamp (EEFL) can be used as the backlight tube. Please refer to Fig. 3 '帛3' to show the external electrode fluorescent tube profile. Two electrodes (10) and ^ and a fluorescent precursor 307. The excitation body 3〇3 is still dispersed in the lamp body 3()1, and the working body 307 is also applied to the outside of the lamp body, and the protective film 314 is used. Covered by the glory body 3〇7, and its two electrodes 3 (four) and the system are arranged in the lamp body 3 The outside of 〇1. Therefore, the excitation 1Λ will hit the electrode coffee/3〇5^^=^ quality system will not have any machine ^ b also increase the life of the lamp. In addition, the lamp body 301 is also quartz Since the glass is made, the possibility that the lamp body, such as a disk, always produces a compound is reduced. Therefore, in the present embodiment, the external electrode light-emitting tube 300 is used, and the fluorescent button 307 is applied to the lamp body 3. In addition, the content of the in-tube exciter 3〇3 can be maintained constant, and the life of the lamp tube can be greatly increased. The present invention discloses a backlight tube disclosed in the above embodiments, through which a phosphor is disposed: The light lamp S 使 使 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发 激发Lamp 遂 utilizes the set phosphor in the backlight 1322309
三達編號：TW2400PA 管外側結合採用石英玻璃，可大大提高背光燈管的壽命。 綜上所述，雖然本發明已以一較佳實施例揭露如上，然其 並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍内，當可作各種之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 1322309Sanda number: TW2400PA The outer side of the tube is combined with quartz glass, which can greatly improve the life of the backlight tube. In view of the above, the present invention has been described above in terms of a preferred embodiment, and is not intended to limit the invention, and various modifications may be made without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims. 1322309
三達編號：TW2400PA 【圖式簡單說明】 第1 A圖繪示顯示器之背光燈管剖面圖。 第1B圖繪示第1A圖中燈管管壁及螢光體沿A-A’剖面圖。 第2圖繪示第一實施例之燈管剖面圖。 第3圖繪示外部電極螢光燈管剖面圖。 【主要元件符號說明】 100 :背光燈管 101、201、301 :燈管本體 103、203、303 :激發體 105a、105b、205a、205b、305a、305b :電極 106 :納離子 107、207、307 :螢光體 200 :燈管 210a、210b :金屬導線 214、314 :保護膜 300 :外部電極螢光燈管Sanda number: TW2400PA [Simple description of the diagram] Figure 1A shows a cross-sectional view of the backlight tube of the display. Fig. 1B is a cross-sectional view of the tube wall and the phosphor along A-A' in Fig. 1A. Fig. 2 is a cross-sectional view showing the lamp of the first embodiment. Figure 3 is a cross-sectional view of the external electrode fluorescent tube. [Description of main component symbols] 100: Backlight tubes 101, 201, 301: Lamp body 103, 203, 303: Exciting bodies 105a, 105b, 205a, 205b, 305a, 305b: Electrode 106: Nano ions 107, 207, 307 : phosphor 200 : lamp tubes 210 a , 210 b : metal wires 214 , 314 : protective film 300 : external electrode fluorescent tube
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