200917594 九、發明說明 【發明所屬之技術領域】 本發明是關於被安裝在構成放電管之玻璃管的端部之 放電管用連接器，具備有該放電管用連接器之具連接器之 放電管及面光源裝置。 【先前技術】 放電管（冷陰極螢光放電管或是CCFL )，例如作爲 TV監視器、筆記型電腦或是行動電話等的顯示裝置之 '液 晶背光光源來使用。眾所皆知的放電管（20 )，如第26 圖所示，具備有：形成有收容氬氣等的放電用氣體和水銀 的封閉空間（2 3 )之玻璃管（2 1 )、及被形成爲杯狀且被 配置在封閉空間（23 )內之一對金屬製的電極（24 )、及 其中一端被連接到電極（24 )且另一端則從玻璃管（2 i ) 的端部（2 1 a )導出到外部之金屬製的引線（22 )、及被 披覆在玻璃管（21)的內部且受到電極（24)的放電所產 生之紫外線的照射而發光之螢光層（25)。前述過的顯示 裝置（未圖示）係具備有將玻璃管（2 1 )把持或夾持在液 晶面板的背面之樹脂製的支架，與導光板相鄰，利用支架 來配置放電管（2 0 )。利用焊接將組束導線連接到玻璃管 (2 1 )之兩端部（2 1 a )的引線（2 2 )，而可以從顯示裝 置的電源裝置，將電力供應給放電管（2 0 )，從背面側將 光照射到液晶面板。 對於此點’下述日本專利文獻1中揭示的金屬製的支 -4- 200917594 架（放電管保持構件）具備有：板狀的導電部、及被安裝 在導電部之安裝部、及從安裝部的前端向垂直方向彎折所 形成且支撐放電管的引線之電極保持部。放電管的引線嵌 合在被形成在電極保持部之溝狀的嵌合部，透過導電部、 安裝部以及電極保持部，而可以將電力供應給放電管。藉 此，省略焊接作業，可以提高放電管與電源裝置的連接作 業性。然而，放電管的引線嵌合到電極保持部時，對引線 施加應力，會在引線與玻璃管之間造成龜裂，經過長時間 會導致放電管內的放電用氣體洩漏之慢性洩漏。日本專利 文獻1中的電極保持部係利用具有彈性的金屬所形成的帶 體來支撐嵌合部，來緩和將放電管的引線嵌合到嵌合部時 的衝擊。然而，利用電極保持部直接支撐放電管的引線之 曰本專利文獻1中的支架則無法充分減少施加到引線的應 力，而無法完全防止玻璃管的龜裂。 下述日本專利文獻2中揭示，被嵌合在玻璃管的端部 之金屬製的連接器、及支撐連接器來將放電管保持在特定 的位置之金屬製的支架。放電管的引線穿過被形成在連接 器的底部之孔部，將連接器與引線予以固裝。這樣的話， 使連接器嵌合在被形成在前述過電極保持部之溝狀的嵌合 部，藉由此方式，就可以透過連接器來將電力供應給放電 管。然而，金屬製的連接器嵌合在玻璃管的端部，使連接 器的內周面與玻璃管的外周面密合，當放電管點燈時，藉 由連接器，玻璃管的端部會局部被冷卻。藉此，玻璃管內 的水銀集中在玻璃管的端部，放電管則無法向長度方向放 -5- 200917594 出均等的光’而會縮短放電管的壽命。對於此點，本提案 人想出’將向直徑方向內側突出的複數個球珠（凸部）形 成在連接器’而在連接器予玻璃管的端部之間形成間隙， 利用間隙的隔熱作用來防止連接器導致玻璃管的局部冷卻 之方法。下述日本專利文獻3中揭示的連接器，雖使用目 的雖與本發明有所不同，但具有向直徑方向內側突出的一 對球珠。另外’日本專利文獻3中還揭示的光源裝置係利 用金屬製的支架來夾持被固定在放電管的端部之連接器， 電源電路連接到支架來將放點管點燈。下述日本專利文獻 4中揭示的光源裝置係具備有：被附著在玻璃管的端部之 黏接劑、及用黏接劑被固定在玻璃管的端部且與引線電連 接之金屬製的連接器。 〔專利文獻1〕 日本專利特開平1 1 — 3 2 9 0 4 7號公報 〔專利文獻2〕 日本專利實開昭64 — 4 8 85 1號公報 〔專利文獻3〕 日本專利特開平3 - 2 8 5 23 1號公報 〔專利文獻4〕 日本專利3462306號公報 【發明內容】 <發明所欲解決之課題> 因而，如同上述，放電管安裝到支架時，使設置在玻 璃管的端部之連接器嵌合到電極保持部的嵌合部，則會有 對連接器施加外力而偏離玻璃管的情形。尤其，在連接器 與玻璃管之間形成間隙的情況，連接器容易偏離玻璃管。 如此，連接器偏離玻璃管，則對放電管的引線施加應力而 -6- 200917594 容易在玻璃管發生龜裂。 因此’本發明之目的係提供將對放電管的引線施 力的事態予以抑制之放電管用連接器及具連接器之放 <用以解決課題之手段> 本發明的放電管用連接器，具備有：筒體（1) 從筒體的其中一端（la)向該筒體的軸方向外側延伸 狀的導出部（3)、及從導出部（3)的前端（3a)開 曲形成之突起部（4)。筒體（1)、導出部（3)以 起部（4 )係由金屬所形成，突起部（4 )則具有貫穿 是缺口部（13)。筒體（1)安裝到構成放電管（20 玻璃管（2〗）的端部（21 a )時，從玻璃管（2 1 )的 (2 1 a )開始延伸之引線（22 )，配置到突起部（4 ) 穿孔或是缺口部（13)內。被形成爲帶狀又具有彈性 出部（3 )和突起部（4 )，從筒體（1 )承受到應力 容易變形。藉此，在筒體（1 )產生應力時，從筒體< 傳達到引線（22 )的應力，透過導出部（3 )來緩和 可以防止在引線（22 )與玻璃管（2 1 )之間發生龜裂 電管用連接器的筒體（1)安裝到被連接在電源裝置 屬製的支架，而從電源裝置透過支架、筒體（1)、 部（3 )以及突起部（4 )，將電力供應給放電管（2 0 引線（22 )，則可以將放電管（20 )點燈。放電管（ 經由連接器利用支架來支撐，不過放電管（20 )的引 加應 電管 、及 之帶 始彎 及突 孔或 )之 端部 的貫 之導 時， ：1 ) ，而 。放 之金 導出 )的 20 ) 線（ 200917594 22)則不是用連接器或是支架來支撐。另外，筒體（1) 安裝到支架時或是筒體（1)偏離放電管（20)時，加諸 到筒體（1 )的機械應力，利用導出部（3 )來緩和。藉此 ’不會對放電管（20 )的引線（22 )傳達很大的應力。 【實施方式】 以下，針對適用於被用在顯示裝置的背光之冷陰極螢 光放電管之本發明的放電管用連接器、具連接器之放電管 及面光源裝置的實施形態，利用第1〜25圖來進行說明。 前述圖面上所示的放電管（20 )，與第26圖所示的放電 管相同，附註相同的圖號，其說明則省略。 如第1圖所示’本發明的放電管用連接器具備有：筒 體（1 )、及從筒體（1 )的其中一端（1 a )開始向筒體（ 1 )的軸方向外側延伸之帶狀的導出部（3 )、及從導出部 (3)的前端（3a)開始彎折所形成之突起部（4)。筒體 (1 )、導出部（3 )以及突起部（4 )係以彈性優異的燐 青銅等的金屬一體形成，用鎳進行電鍍處理。也可以用鋁 或銘合金來形成連接器（1 〇 )。筒體（1 )係如第2圖所 示’爲了要將玻璃管（2 1 )保持在筒體（1 )內的特定位 置’並且增加對於變形的機械強度’故具有向直徑方向內 側突出之複數個半球狀的球珠（凸部）（丨丨），筒體（1 )裝配到玻璃管（21 )的端部（2丨a )時，在筒體（1 )與 玻璃管（2 1 )的端部（2丨a )之間形成間隙（丨2 )。本實 施形態中’如第2圖和第3圖所示，向筒體（n的周方 -8- 200917594 向和長度方向各形, 珠（1 1 )。球珠（ 筒體（1 )大小的個 有對口部（17 )間 裝配到玻璃管（2 1 )在球珠（1 1 )抵 狀態下，保持在玻 向內側突出而與筒 筒體（1 )的其中-21 )時，玻璃管（ )° 導出部（3 )價 體（1 )和突起部 延伸之帶狀的平面 伸方向，向垂直方 其上面方向或是下 3 )的厚度，與突走 )的厚度相同，但 (3 )所要求之可撓 圖和第4圖所示， 心軸（C1 )的延長 電管（20 )之引線 孔（1 3 )。筒體（ 時，從玻璃管（2 1 成3個球珠（11) ’合計共設有9個球 1 1 )的數量、大小以及形狀’可以依據 i件等作適度變更。筒體（1)形成爲具 歇環狀，從特定的直徑尺寸開始擴徑來 )時，具有縮徑彈力。藉此’筒體（1 接到玻璃管（2 1 )的外周面（2 1 b )的 璃管（21)的端部（21a)。向直徑方 體（1) 一體形成阻擋體（16)設置在 -端（1 a )，筒體（1 )安裝到玻璃管（ 21)的端部（21a)抵接在阻擋體（16 I如第4圖所示，具有形成爲相對於筒 (4)縮窄寬度，向筒體（1)的軸方向 形狀。因而，導出部（3 )相對於其延 向的剖面圖很小，具有可撓性，容易向 面方向彎曲。本實施形態中，導出部（ S部（4)的厚度相同，並且與筒體（1 導出部（3 )的寬度和長度，與導出部 性的程度相對應’作適度設定。如第1 突起部（4)具備有：在筒體（1)之中 線上具有中心軸（C 2 )且具有相對於放 (2 2 )的剖面積很大的直徑之圓形貫穿 1 )女裝到玻璃管（2 1 )的端部（2 1 a ) )的端部（21 a )開始延伸的引線（ 22 -9- 200917594 )，配置到突起部（4 )的貫穿孔（1 3 )內。貫穿孔（1 3 )的大小係衡量將放電管（20 )的引線（22 )穿過突起部 (4 )的貫穿孔（1 3 )時的作業性及利用焊材（5 )來將引 線（22 )與突起部（4 )連接時的作業性，作適度設定。 被形成爲帶狀又具有彈性和可撓性之導出部（3 )和 突起部（4 )，因受到外力容易變形，所以筒體（丨）偏離 玻璃管（21)時，導出部（3)和突起部（4)容易彎曲， 防止對引線（2 2 )施加強大的外力。此結果，防止玻璃管 (2 1 )發生龜裂。另外’將向直徑方向內側突出的複數個 球珠（11)形成在筒體（丨），而在筒體（！）與玻璃管（ 2 1 )的端部（2 1 a )之間形成間隙（1 2 )，利用間隙（1 2 )的隔熱作用來防止筒體（1 )導致玻璃管（2 1 )的局部 冷卻’而可以抑制放電管（2 0 )的特性變動。尤其，將後 述的具連接器之放電管（10、20)固定在支架（30)，玻 璃管（2 1 )的熱會透過支架（3 〇 )傳達到顯示裝置側，不 過本發明則是利用間隙（1 2 )的隔熱作用，防止熱從玻璃 管（21)傳達到支架（30)，而可以防止玻璃管（21)的 局部冷卻。 製造連接器（10)時，如第5圖所示，經由壓模成形 ’用金屬板來形成導出部（3 )、突起部（4 )以及阻擋體 (16 )被一體形成之板構件（6 )。其次，經由彎折加工 ’將板構件（6 )彎折成環狀來形成筒體（1 )，再使突起 部（4 )和阻擋體（1 6 )彎折，形成第6圖所示的連接器 (1 〇 )。將連接器（1 0 )安裝到放電管（2 0 )來組裝具連 -10- 200917594 接器之放電管（1〇、20)時，如第7(a)圖和第7(b) 圖所示，將連接器（10)的筒體（1)安裝到玻璃管（21 )的端部（21a )，與放電管（20 )的引線（22 )並排平 行地配置導出部（3 )，使引線（22 )穿過突起部（4 )的 貫穿孔（1 6 )內。此時，直到玻璃管（2 1 )的端部（21 a )抵接到阻擋體（16 )爲止，從筒體（1 )的另—端（i c )***放電管（20)。阻擋體（16)則在筒體（1)內進 行放電管（20)的定位。 其次，用焊錫等的焊材（5 )將突起部（4 )與引線（ 22)予以固裝，並將連接器（10)與放電管（20)的引線 (22 )予以電連接，如第7 ( c )圖和第7 ( d )圖所示， 至少要將突起部（4 )的貫穿孔（13 )和引線（22 )的一 部分浸泡在熔液的焊材（5 )中，附著在突起部（4 )的貫 穿孔（1 3 )的內部之焊材（5 )經冷卻後，則可以將突起 部（4)與引線（22)相連接。過去是以手工用焊錫來將 放電管（20 )的引線（22 )與組束導線予以連接，不過筒 體（〗）安裝在玻璃管（21 )的端部（21 a )之後，將突起 部（4 )的貫穿孔（1 3 )和引線（22 )浸泡在熔液的焊材 (5 )中’經冷卻的話就可以將引線（22 )與連接器（i 〇 )相連接’所以焊接作業變簡單，可以減少製造成本。 具連接器之放電管（1 0、2 0 )組裝到顯示裝置時，在 液晶面板的背面，與導光板相鄰接來配置金屬製的支架（ 3 0 )。支架（3 0 )透過配線連接到顯示裝置的電源裝置。 如第8圖所示’支架（30)具備有：基礎構件（31)、及 -11 - 200917594 與基礎構件（3 1 )成一體且相對於基礎構件（3 1 )向垂直 方向延伸所形成之一對夾持部（3 2 )，基礎構件（3 1 )被 固定在顯示裝置（未圖示）。如第9圖所示，具連接器之 放電管（1 〇、20 ) ’被配置在相對向所設置脂二對夾持部 (3 2 )之間。夾持部（3 2 )具有夾持連接器（1 〇 )的筒體 (1 )之彎曲面，押壓筒體（1 )，則夾持部（32 )會向相 互離間的方向移動’之後利用彈力回復來保持具連接器之 放電管（10、20)。連接器（10)安裝在玻璃管（21)的 端部（21a)(未圖不）。利用支架（30)的夾持部（32 )來夾持筒體（1)，從顯示裝置的電源裝置，透過筒體 (1 )、導出部（3 )以及突起部（4 )，將電力供應給放 電管（20 )的引線（22 )，則可以將放電管（20 )點燈。 用支架（3 0 )挾持筒體（1 )時，透過筒體（1 )施加到引 線（22 )的外力，利用導出部（3 )和突起部（4 )來緩和 ’不會對放電管（20 )的玻璃管（2 1 )傳達很大的應力。 本發明的實施形態，並不侷限於第1〜9圖的實施形態 ’能夠作變更。例如，如第1 〇圖所示，連接器（10 )的 導出部（3)，也可以用複數個帶構件來形成。突起部（4 )雖被形成爲從導出部（3)的前端（3a)開始向上方曲 折’但並不侷限於曲折，突起部（4 )也可以形成爲從導 出部（3 )的前端（3 a )開始彎曲。另外，突起部（4 )的 貫穿孔（1 3 )，並不侷限於圓形，也可以形成爲角形。如 第Η圖所示，也可以將突起部（4 )的前端部形成爲Y形 狀或是U形狀的缺口部。如第12圖所示，也可以在導出 -12- 200917594 部（3 )的一部分形成曲折部（1 8 ) ’也可以在突起部（4 )或是在突起部（4 )與導出部（3 )的兩方形成曲折部（ 18)(未圖示）。曲折部（1 8 )利用本身的彈性’就可更 加緩和傳達到筒體（1 )與突起部（4 )之間的應力。另外 ，放電管（2 0 )點燈或熄燈時’利用熱膨脹使玻璃管（2 1 )延伸或收縮’但向放電管（2 0 )的長度方向伸縮之曲折 部（1 8 )，吸收玻璃管（2 1 )的延伸或收縮量’藉由玻璃 管（2 1 )的延伸或收縮，可以減輕施加到玻璃管（2 1 )的 應力。與日本專利文獻1中的電極保持部同樣，如第13 圖所示。也可以將從基礎構件（3 1 )向垂直方向曲折所形 成之帶體（33)形成在支架（30)。利用被形成在帶體（ 3 3 )的前端部之支撐部（3 4 )，支撐連接器（1 0 )的導出 部（3 )或是突起部（4 )，緩和連接時的衝擊，而可將連 接器（10)與支架（30)相連接。支撐部（34)與連接器 (10)的導出部（3)或是突起部（4)用焊材來固裝過後 ，則可以將具連接器之放電管（10、20)固定在支架（30 )。圖示的具連接器之放電管（10、20)則是突起部（4 )和引線（2 2 )在組裝到顯示裝置之前就用焊材（5 )加 以固裝’不過也可以在組裝到顯示裝置之後才用焊材（5 )加以固裝。 依據第1〜1 3圖的實施形態’可以透過支架（3 〇 )和 連接器（10) ’將電力供應給放電管（20)的電極（24) ，又可以提局放電管（2 0 )與電源裝置的連接作業性。然 而’玻璃管（21)內所充塡的放電用氣體，當放電管（2〇 -13- 200917594 )未點燈時爲非導電體’不過放電管（20 )點燈時成爲導 電體，故與介電質也就是與玻璃管（21)的外周面相鄰配 置金屬製的連接器等的導電體，則會在玻璃管（21)內所 充塡的放電用氣體、玻璃管（21)以及筒體（1)間產生 游離電容量（寄生電容量）。也會有放電管（20)中，對 電極（24 )施加1 〇〇〇 V的高電壓的情形，利用高頻放電 來將放電管（20)點燈時，產生與游離電容量成正比例漏 電流。其結果，會有放電管（20 )點燈之變頻電路的電力 效率降低的問題。 放電管點燈時，在離電極的前端部僅隔開一些距離的 位置產生電漿（光柱），但依據前述過的日本專利文獻4 ，因連接器所開口的端部不會比電極的前端部還要延伸， 所以可以防止電漿與連接器之間產生游離電容量。然而， 曰本專利文獻4中所揭示的連接器，插裝在玻璃管的端部 之連接器之軸方向的長度短於過去的連接器’故必須在玻 璃管與連接器之間配置黏接劑，將連接器固定在玻璃管的 端部。由矽氧樹脂所組成的黏接劑，會有放電管點燈導致 的加熱或紫外線造成劣化之虞。另外，經由黏接劑和玻璃 管被封包在連接器之放電管的電極部分’會在放電用氣體 、玻璃管、黏接劑以及連接器間產生游離電容量’無法充 分減少游離電容量。 以下，針對本發明的放電管用連接器、具連接器之放 電管及面光源裝置之另外的實施形態’用第14〜25圖來進 行說明。依據本發明另外的實施形態’可以提供減少金屬 -14- 200917594 製的連接器（1 〇 )安裝在玻璃管（2 1 )的端部（2 1 a )所 產生的游離電容量之放電管用連接器（10)、具連接器之 放電管（10、20)及面光源裝置（10、20、30)。 如第1 4圖所示，本實施形態的連接器（1 0 )係由封 包玻璃管（21)的端部（21a)之中空的筒體（1)和連接 部（2 )所形成，連接部（2 )具備有：從筒體（1 )的其 中一端（1 a )開始向筒體（1 )的軸方向外側延伸之帶狀 的導出部（3 )、及從導出部（3 )的前端（3 a )開始曲折 或彎曲所形成之突起部（4)。筒體（1)係如第15圖所 示，具有向直徑方向內側突出之複數個半球狀的球珠（1 i )，當筒體（1 )裝配到玻璃管（21 )的端部（21 a )時， 球珠（1 1 )的頂部接觸到玻璃管（2 1 )的外周面來相互固 定。進而，在未設有球珠（Ή)之筒體（1)的內周面（ 1 b )與玻璃管（2 1 )的端部（2 1 a )之間形成間隙（1 2 ) 〇 本實施形態中，如第1 5〜1 7圖所示，在筒體（1 )的 周方向上形成4個球珠（11)及在長度方向上形成3個球 珠（1 1 )，合計共設有1 2個球珠（1 1 )。當將筒體（1 ) 安裝到玻璃管（2 1 )的端部（2 1 a )時，利用球珠（丨i ) 使筒體（1 )與玻璃管（21 )隔開一定距離，在筒體（1) 與玻璃管（21 )之間，形成間隙（1 2 )造成的空洞（空氣 層）。 游離電容量的大小，與被配置在放電氣體與筒體（1 )之間之介電質的介電常數成正比例，與放電氣體與筒體 -15- 200917594 (1 )的隔開距離成反比例。過去的連接器係由介電常數 3.7〜10.0程度的玻璃管及介電常數3.5〜5.0程度的矽氧樹 脂所組成之黏接劑被配置在放電用氣體與連接器之間，本 實施形態的連接器（1 〇 )則是在放電用氣體與連接器之間 ，與玻璃管（21)相鄰接，形成介電常數1.0程度的空氣 層，並且利用球珠（1 I )來將筒體（1 )與玻璃管（21 ) 予以隔開一定距離，所以可以比過去更加抑制將連接器（ 1〇)安裝到放電管（20)所產生的游離電容量。筒體（1 )與玻璃管（2 1 )的隔開距離係依據放電管（2 0 )點燈之 變頻電路所要求的電力效率作適度設定，不過隨著筒體（ 1)的內周面與玻璃管（21)的外周面（21b)之隔開距離 的增大，放電用氣體、玻璃管（21)以及筒體（1)所產 生的游離電容量減少’可以提高電力效率。 連接器（10)係具有呈圓形被形成在筒體（1)之複 數個開口部（1 4 )’開口部（14 )則是將玻璃管（2 1 )的 外周面（2 1 b )露出到外部。開口部（1 4 )被形成爲向球 珠（11 )與球珠（11 )之間擴散’防止筒體（1 )的機械 強度局部明顯降低。本實施形態係如第15圖所示’在筒 體（1 )所對向的各側面形成7個開口部（14 )及在底面 形成3個開口部（14 )’合計共設有1 7個的開口部（14 )，不過開口部（14 )的數量、大小以及形狀，可以依據 筒體（1 )的大小和強度等的條件作適度變更。放電用氣 體、玻璃管（2 1 )以及筒體（1 )間所產生的游離電容量 ，與對向於玻璃管（2 1 )之筒體（1 )的表面積成正比例 -16- 200917594 ，與玻璃管（21)與筒體（1)的距離成反比例。在筒體 (1 )形成複數個開口部（14 )，可以減少筒體（1 )對於 玻璃管（2 1 )的對向面積，所以可以減少游離電容量。另 外，隨著朝向玻璃管（21 )的中央，筒體（1 )之開口部 (1 4 )的總面積擴大或是將球珠（1 1 )更加深形成，增大 筒體（1 )與玻璃管（2 1 )的隔開距離，以使朝向玻璃管 (21)的中央筒體（1)比電極（24)還要更延伸，利用 複數個開口部（1 4 )仍可以抑制游離電容量的增加。藉此 ，不必如同過去的連接器，用黏接劑來將玻璃管與連接器 加以固定，利用向軸方向具有足夠長度的筒體（1 )，可 以將連接器（1 〇 )插裝固定在玻璃管（2 1 )的端部（2 1 a )° 如第1 4圖所示，筒體（1 )具備有：經由玻璃管（21 )來封包電極（24)之電極封包部（7)、及從電極封包 部（7 )朝向玻璃管（2 1 )的中央延伸之延伸封包部（8 ) 。本實施形態中，形成爲開口部（1 4 )擴散到筒體（1 ) 全體’但開口部（1 4 )至少要形成在電極封包部（7 )和 延伸封包部（8 )。在電極封包部（7 )，並且在從電極封 包部（7 )朝向玻璃管（2 1 )的中央延伸之延伸封包部（8 )，形成複數個開口部（1 4 )，則可以有效減少電極（2 4 )的前端部（24a )所導致的電漿所產生的游離電容量。 本實施形態的連接器（1 〇 )，利用開口部（1 4 )與球珠（ 1 1 )的相輔相乘效果，可以大幅減少因將連接器（1 〇 )安 裝到放電管（2 0 )所產生的游離電容量。 -17- 200917594 製造連接器（10)時，如第18圖所示’經由壓模成 形，用金屬板來形成連接部（2 )、阻擋體（1 6 )、球珠 (1 1 )以及開口部（1 4 )等被—體形成之板構件（6) ° 其次，經由彎折加工來將板構件（6 )彎折成環狀而形成 筒體（1)，使突起部（4)或阻擋體（16)曲折或彎曲而 形成第19圖所示的連接器（1〇)。將連接器（1〇)安裝 到放電管（20)來組裝具連接器之放電管（10、20)時’ 將連接器（1 〇 )的筒體（1 )安裝到玻璃管（21 )的端部 (21 a )，用焊錫等的焊材（5 )將連接部（2 )的突起部 (4 )與引線（22 )予以固裝，將連接器（1 〇 )與放電管 (20 )的引線（22 )予以電連接。 用具連接器之放電管（10、20)來組裝面光源裝置（ 1 0、2 0、3 0 )時，在構成顯示裝置（未圖示）之液晶面板 的背面，與導光板相鄰來配置金屬製的支架（3 0 )。如第 20圖所示，面光源裝置（1〇、20、30)具備有：放電管（ 20 )、及安裝在放電管（20 )之玻璃管（21 )的端部（ 21a)之連接器（1〇)、及把持連接器（10)來將放電管 (20)保持在特定的位置之支架（30)。支架（3〇)由與 連接器（1 0 )同樣的導電性很高的金屬所形成，透過配線 連接到顯示裝置的電源裝置。支架（30)係與筒體（1) 同樣’形成爲具有對口部（3 5 )間歇環狀，由特定的直徑 尺寸進行擴徑來裝配連接器（丨〇 )的筒體（1 )時，具有 縮徑彈力。支架（3 0 )具備有基礎構件（3 1 )、及與基礎 構件（31)成一體形成之一對夾持部（32)，基礎構件（ -18- 200917594 31)被固定在顯示裝置（未圖示）°夾持部（32)具有夾 持連接器（10)的筒體（1)之彎曲面，押壓筒體（1)， 則夾持部（3 2 )會向相互隔開的方向移動’之後利用彈力 回復來把持具連接器之放電管（1〇、2〇)。 如第20圖和第21圖所示，支架（30)具有當把持連 接器（10)時，與被形成在筒體（1)支開口部（14)的 至少一部分整合之開放孔（37 )。利用支架（30 )把持連 接器（1 〇 )時，與筒體（1 )的開口部（14 )整合之開放 孔（3 7 )，因將利用筒體（1 )覆蓋之玻璃管（21 )向外 部開放，所以筒體（1 )的開口部（14 )利用支架（3 0 ) 來封閉，可以防止因放電用氣體、玻璃管（21)以及支架 (3 0 )而產生游離電容量。本實施形態中，利用呈長方形 被形成在支架（3 0 )之一對開放孔（3 7 )，使被形成在筒 體（1 )的各側面支7個開口部（14 )開放來露出到外部 〇 連接器（1 〇 )係一對被安裝在玻璃管（2 1 )的端部（ 21a)(未圖示）。利用支架（30)的夾持部（32)來夾 持筒體（1) ’將支架（30)與連接器（10)予以電連接 ，從顯示裝置的電源裝置，透過支架（30)、筒體（1) 以及連接部（2 ) ’將電力供應給放電管（2 〇 )的引線（ 2 2 )，可以將放電管（2 〇 )點燈。 本發明的實施形態，並不侷限於第1 4〜2丨圖所示的實 施形態’能夠加以變更。例如，如第2 2圖中的連接器（ 4 〇 )所示’也可以取***口部（丨4 )，改而在筒體（1 ) -19- 200917594 形成向直徑方向外側突出之複數個***緣（凹部）（1 5 ) 。***緣（15)形成爲筒體（1)的一部分向外部彎曲之 半球狀，筒體（1 )安裝到玻璃管（2 1 )的端部（21 a )時 ，形成有***緣（1 5 )之筒體（1 )的一部分與玻璃管（ 2 1 )的距離加大隔開距離。藉此，與開口部（1 4 )同樣， 可以減少連接器（40)所產生的游離電容量。在筒體（1 )設置開口部（14) ’則製造連接器（10)時會產生開口 部（1 4 )所形成金屬板的殘渣，不過取***口部（1 4 )， 改而形成沒有貫穿孔的***緣（1 5 )，這樣就可以形成不 會產生殘渣的連接器（1 0 )。另外，形成複數個***緣（ 15)，就可以增加筒體（1)的機械強度。用支架（30) 來把持連接器（40 )時，利用***緣（1 5 )使支架（30 ) 與連接器（1〇)離開一定距離，也會在支架（30)與連接 器（4 0 )之間形成間隙（未圖示）。藉此，不必在支架形 成開放孔（3 7 )，仍可以防止因放電用氣體、玻璃管（2 1 )以及支架（30)而產生的游離電容量。然而，也可以用 支架（30)來把持連接器（40)時，將***緣（15)與支 架（3 0 )的開放孔（3 7 )整合，而從開放孔（3 7 )將*** 緣（1 5 )向外部開放。筒體（1 )的***緣（1 5 )抵接到 支架（3 0 )不會受到妨礙，可以既容易又確實地利用支架 (3 0 )來把持連接器（40 )。球珠（Π )和***緣（1 5 ) ，並不侷限於半球狀，也可以向筒體（1 )的長度方向呈 線狀來連續形成或是向周方向呈環狀來連繪形成。 也可以如第2 3圖中的連接器（5 0 )所示，在球珠（ -20- 200917594 1 1 )的頂部形成開口部（1 4 )，在接觸到玻璃管（ 外周面（2 1 b )之球珠（1 1 )的頂部形成開口部（ 藉此來更加減少筒體（1 )對於玻璃管（2 1 )的對 ’還可以減少游離電容量。也可以如第24圖中的 (60)所示’在筒體（1)形成與電極封包部（7) 封包部（8 )共用的開口部（1 4 )。連接器（60 ) (1) ’具有相對於前述過的連接器（10)較大且 長方形之一對開口部（14 )。如第2 5圖所示，利 器（6 0 )的開口部（1 4 )，使從電極（2 4 )及從電 )的前端部（24a )開始僅些許隔開之玻璃管（2 i 閉空間（23 )的一部分從連接器（1 〇 )開放。筒f 的開口部（1 4 )，也可以沿著筒體（1 )的緣部或 形成缺口部（未圖示）。另外，也可以在比形成有 (2) 之筒體（1)的其中一端（ia)還要更與電極 的前端部（24a )相鄰之筒體（1 )的另一端（i c ) 數個開口部（1 4 )。可以更加減少因與電極（24 ) 部（24a )相鄰而產生的游離電容量。進而，也可 狀的金屬來形成筒體（1 )，來大幅減少筒體（1 ) 璃管（21)的對向面積。 依據本發明的放電管用連接器、具連接器之放 面光源裝置，減少將金屬製的連接器（1 〇 )安裝到 (20 )的端部時所產生的游離電容量，藉此可以防 電流導致電力效率的降低，且減少放電管（2 0 )的 21 )的 14)， 向面積 連接器 和延伸 的筒體 形成爲 用連接 極（24 )的封 1(1) 角落部 連接部 (24 ) 形成多 的前端 以用網 對於玻 電管及 放電管 止因漏 耗電量 -21 - 200917594 〔發明效果〕 放電管與連接器進行組裝時或是放電管組裝到顯示裝 置時，由連接器來緩和施加在放電管的引線之應力，防止 在引線與玻璃管之間發生龜裂，而可以獲得可靠性很高的 放電管和光源裝置。 〔產業上利用的可能性〕 本發明例如可以適合應用於用在液晶顯示器之背光等 的光源裝置之冷陰極螢光放電管。 【圖式簡單說明】 第1圖爲表示本發明的具連接器之放電管的一個實施 形態之剖面圖。 第2圖爲表示第1圖中的連接器之剖面圖。 第3圖爲表示第1圖中的連接器之另外的剖面圖。 第4圖爲表示第1圖中的連接器之平面圖。 第5圖爲表示形成第1圖中的連接器之板構件之平面 圖。 桌6圖爲表不桌1圖中的連接益之_LL體圖。 第7圖爲表示突起部與引線的連接之過程圖。 第8圖爲支架之剖面圖。 第9圖爲表示將具連接器之放電管安裝到支架的過程 之立體圖。 第1 〇圖爲表示導出部的另外實施形態之立體圖。 -22- 200917594 第1 1圖爲表示突起部的另外實施形態之立體圖。 第12圖爲在導出部具有突起部之第1圖中的具連接 器之放電管之剖面圖。 第13圖爲表示支架的另外實施形態之立體圖。 第14圖爲表示本發明的具連接器之放電管的另外實 施形態之剖面圖。 第15圖爲表示第14圖中的連接器之剖面圖。 第16圖爲表示第I4圖中的連接器之另外剖面圖。 第17圖爲表示第14圖中的連接器之平面圖。 第18圖爲表示形成第14圖中的連接器之板構件之平 面圖。 弟19圖爲表不桌14圖中的連接器之立體圖。. 第20圖爲表示將第14圖的具連接器之放電管安裝到 支架的過程之立體圖。 第21圖爲被保持在支架的具連接器之放電管之側面 圖。 第22圖爲表示在筒體具有***緣之第14圖的具連接 器之放電管之剖面圖。 第23圖爲表示在球珠具有開口部之第14圖的具連接 器之放電管之剖面圖。 第24圖爲表示在筒體具有—對開口部之第14圖的具 連接器之放電管之立體圖。 第25圖爲第24圖之剖面圖。 第26圖爲表示過去的放電管之剖面圖 -23- 200917594 【主要元件符號說明】 1 :筒體 1 a :其中一端 3 :導出部 3 a :前端 4 :突起部 7 :電極封包部 8 :延伸封包部 1 〇 :連接器 1 1 :球珠 13 :貫穿孔（缺口部） 1 4 :開口部 1 5 :***緣 1 6 :阻擋體 1 8 :曲折部 2 0 :放電管 2 1 :玻璃管 2 1 a :端部 22 :引線 2 3 :封閉空間 2 4 :電極 30 :支架 -24-[Technical Field] The present invention relates to a connector for a discharge tube to be attached to an end portion of a glass tube constituting a discharge tube, and a discharge tube and a surface having a connector for the connector for the discharge tube Light source device. [Prior Art] A discharge tube (cold cathode fluorescent discharge tube or CCFL) is used, for example, as a liquid crystal backlight source for a display device such as a TV monitor, a notebook computer, or a mobile phone. As shown in Fig. 26, the discharge tube (20) is generally provided with a glass tube (2 1 ) having a closed space (23) for containing a discharge gas such as argon gas and mercury, and a pair of metal electrodes (24) formed in a cup shape and disposed in the enclosed space (23), one end of which is connected to the electrode (24) and the other end is from the end of the glass tube (2 i ) ( 2 1 a ) A metal lead (22 ) that is led to the outside and a phosphor layer that is exposed to the inside of the glass tube (21) and that is illuminated by the ultraviolet light generated by the discharge of the electrode (24) (25) ). The display device (not shown) described above is provided with a resin holder that holds or holds the glass tube (2 1 ) on the back surface of the liquid crystal panel, and is adjacent to the light guide plate, and the discharge tube is disposed by the holder (20). ). Connecting the bundle wires to the leads (2 2 ) of the both ends (2 1 a ) of the glass tube (2 1 ) by welding, and supplying power to the discharge tube (20) from the power supply device of the display device, Light is irradiated to the liquid crystal panel from the back side. In this regard, the metal branch -4-200917594 (discharge tube holding member) disclosed in the following Japanese Patent Document 1 includes a plate-shaped conductive portion, a mounting portion mounted on the conductive portion, and a mounting portion. The front end of the portion is bent in the vertical direction and supports the electrode holding portion of the lead of the discharge tube. The lead wire of the discharge tube is fitted into the groove-shaped fitting portion formed in the electrode holding portion, and is transmitted through the conductive portion, the mounting portion, and the electrode holding portion, so that electric power can be supplied to the discharge tube. Therefore, the welding work is omitted, and the connection workability of the discharge tube and the power supply unit can be improved. However, when the lead wire of the discharge tube is fitted to the electrode holding portion, stress is applied to the lead wire, causing cracks between the lead wire and the glass tube, and a long-term leakage of the discharge gas in the discharge tube may occur. The electrode holding portion of the Japanese Patent Literature 1 supports the fitting portion by a belt formed of a metal having elasticity to alleviate the impact when the lead wire of the discharge tube is fitted to the fitting portion. However, the lead of the discharge tube is directly supported by the electrode holding portion. The holder of Patent Document 1 cannot sufficiently reduce the stress applied to the lead, and the crack of the glass tube cannot be completely prevented. Japanese Patent Laid-Open Publication No. 2 discloses a metal connector that is fitted to the end of a glass tube and a metal holder that supports the connector to hold the discharge tube at a specific position. The lead of the discharge tube is passed through a hole formed in the bottom of the connector to fix the connector and the lead. In this case, the connector is fitted to the groove-shaped fitting portion formed in the over electrode holding portion, whereby the power can be supplied to the discharge tube through the connector. However, the metal connector is fitted to the end of the glass tube so that the inner peripheral surface of the connector is in close contact with the outer peripheral surface of the glass tube. When the discharge tube is lit, the end of the glass tube is passed through the connector. Partially cooled. Thereby, the mercury in the glass tube is concentrated at the end of the glass tube, and the discharge tube cannot emit equal light in the length direction -5-200917594, and the life of the discharge tube is shortened. In this regard, the present inventors have come up with the idea that 'a plurality of balls (protrusions) protruding inward in the diametrical direction are formed in the connector' to form a gap between the ends of the connector and the glass tube, and the heat insulation by the gap is utilized. A method of preventing the connector from causing local cooling of the glass tube. The connector disclosed in the following Japanese Patent Publication No. 3 has a pair of balls projecting inward in the radial direction, although the purpose of use differs from the present invention. Further, in the light source device disclosed in Japanese Patent Laid-Open No. 3, a metal holder is used to sandwich a connector fixed to an end portion of the discharge tube, and a power supply circuit is connected to the holder to light the discharge tube. The light source device disclosed in the following Japanese Patent Publication No. 4 includes an adhesive attached to the end of the glass tube and a metal fixed to the end of the glass tube with an adhesive and electrically connected to the lead. Connector. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Publication No. 8 5-23 (Patent Document 4) Japanese Patent No. 3462306 <Problems to be Solved by the Invention> Therefore, as described above, when the discharge tube is attached to the holder, the connector provided at the end of the glass tube is fitted to the fitting portion of the electrode holding portion, and the connector is provided A case where an external force is applied to deviate from the glass tube. In particular, in the case where a gap is formed between the connector and the glass tube, the connector is easily deviated from the glass tube. Thus, when the connector is deviated from the glass tube, stress is applied to the lead of the discharge tube. -6-200917594 It is easy to crack the glass tube. Therefore, the object of the present invention is to provide a connector for a discharge tube which suppresses a state in which a lead of a discharge tube is restrained, and a connector with a connector <Means for Solving the Problem> The connector for a discharge tube according to the present invention includes a discharge portion (3) extending from the one end (la) of the cylindrical body to the outer side in the axial direction of the cylindrical body (3) And a protrusion (4) formed by opening the front end (3a) of the lead-out unit (3). The tubular body (1) and the lead-out portion (3) are formed of metal by the starting portion (4), and the protruding portion (4) has a notch portion (13). When the cylindrical body (1) is attached to the end portion (21a) constituting the discharge tube (20 glass tube (2)), the lead wire (22) extending from the (2 1 a) of the glass tube (2 1 ) is disposed to The protrusion (4) is perforated or in the notch portion (13). The belt portion is formed into a belt shape and has an elastic portion (3) and a protrusion portion (4), and the stress is easily deformed from the cylinder body (1). When the cylinder (1) is stressed, from the cylinder < The stress transmitted to the lead (22) is relieved by the lead-out portion (3) to prevent the cylinder (1) of the connector for the cracked electric tube from being connected between the lead (22) and the glass tube (2 1 ) It is connected to a bracket of the power supply unit, and power is supplied from the power supply unit to the discharge tube through the bracket, the cylinder (1), the portion (3), and the protrusion (4) (20 lead (22), then The discharge tube (20) is turned on. The discharge tube (supported by the bracket through the connector, but the discharge tube (20) is applied to the tube, and the end of the lead bend and the protruding hole or) is guided. , :1), and. The 20) line (200917594 22) of the gold release is not supported by connectors or brackets. Further, when the tubular body (1) is attached to the bracket or when the tubular body (1) is displaced from the discharge tube (20), the mechanical stress applied to the tubular body (1) is relieved by the lead-out portion (3). Thereby, no large stress is transmitted to the lead wires (22) of the discharge tube (20). [Embodiment] Hereinafter, an embodiment of a discharge tube connector, a discharge tube having a connector, and a surface light source device of the present invention applied to a cold cathode fluorescent discharge tube used for a backlight of a display device is used. 25 to illustrate. The discharge tube (20) shown in the above-mentioned drawing is the same as the discharge tube shown in Fig. 26, and the same reference numerals are attached, and the description thereof is omitted. As shown in Fig. 1, the connector for a discharge tube according to the present invention includes a cylindrical body (1) and an outer end extending in the axial direction of the cylindrical body (1) from one end (1a) of the cylindrical body (1). The strip-shaped lead-out portion (3) and the protrusion portion (4) formed by bending from the front end (3a) of the lead-out portion (3). The tubular body (1), the lead-out portion (3), and the projection portion (4) are integrally formed of a metal such as beryllium bronze having excellent elasticity, and are plated with nickel. It is also possible to form the connector (1 〇 ) with aluminum or alloy. The cylinder (1) has a diametrical inner side for the purpose of holding the glass tube (2 1 ) at a specific position in the cylinder (1) and increasing the mechanical strength for deformation as shown in Fig. 2 a plurality of hemispherical beads (protrusions) (丨丨), when the cylinder (1) is assembled to the end of the glass tube (21) (2丨a), in the cylinder (1) and the glass tube (2 1 A gap (丨2) is formed between the ends (2丨a) of the ). In the present embodiment, as shown in Fig. 2 and Fig. 3, the cylindrical body (the circumferential direction of n-8-200917594 and the longitudinal direction of each shape, the bead (1 1 ). The ball (the size of the cylinder (1)) One of the pair of mouths (17) is fitted to the glass tube (2 1 ) in the ball (1 1 ) in the state of the ball, while the glass is inwardly protruded while the cylinder body (1) is -21) Tube ( ) ° Derivation part (3) The valence body (1) and the strip-shaped plane extending direction in which the protrusion extends, the thickness in the vertical direction or the lower 3) is the same as the thickness of the protrusion, but 3) The required flexible diagram and the lead hole (13) of the extension tube (20) of the mandrel (C1) are shown in Fig. 4. In the case of the cylinder (the number, size and shape of the total of 9 balls 1 1 from the glass tube (2 1 to 3 balls (11) 'total) can be changed moderately according to the i piece, etc. When it is formed into a ring-shaped ring and expands from a specific diameter dimension, it has a reduced-diameter elastic force. Thereby, the cylinder (1 is connected to the end (21a) of the glass tube (21) of the outer peripheral surface (2 1 b) of the glass tube (2 1 ). The barrier body (16) is integrally formed with the diameter square body (1). Provided at the end (1 a ), the end portion (21a) of the cylinder (1) mounted to the glass tube (21) abuts against the blocking body (16I, as shown in Fig. 4, has a shape formed relative to the barrel (4) The narrowing width is formed in the axial direction of the cylindrical body (1). Therefore, the lead-out portion (3) has a small cross-sectional view with respect to the extending direction, and has flexibility and is easily bent in the surface direction. In the present embodiment, The lead-out portion (the S-portion (4) has the same thickness, and is appropriately set to correspond to the width and length of the tubular body (1 lead-out portion (3) in accordance with the degree of the lead-out portion). The first protrusion portion (4) is provided. There is: a circular axis having a central axis (C 2 ) on the line in the cylinder (1) and having a large cross-sectional area with respect to the discharge (2 2 ) 1) women's to the glass tube (2 1 ) The lead (22 -9- 200917594 ) at which the end portion (21 a ) of the end portion (2 1 a ) starts to extend is disposed in the through hole (13) of the protrusion portion (4). The through hole (13) Size measurement will discharge Workability when the lead wire (22) of the (20) passes through the through hole (13) of the projection (4) and workability when the lead (22) is connected to the projection (4) by the welding material (5) The guide portion (3) and the protrusion portion (4) which are formed into a belt shape and have elasticity and flexibility are easily deformed by an external force, so that when the cylinder body (偏离) deviates from the glass tube (21), The lead-out portion (3) and the protrusion portion (4) are easily bent to prevent a strong external force from being applied to the lead wire (2 2 ). As a result, the glass tube (2 1 ) is prevented from being cracked. The balls (11) are formed in the cylinder (丨), and a gap (1 2 ) is formed between the cylinder (!) and the end (2 1 a ) of the glass tube ( 2 1 ), and the gap is utilized (1 2 The heat insulation prevents the cylinder (1) from causing local cooling of the glass tube (2 1 ), and the characteristic variation of the discharge tube (20) can be suppressed. In particular, a discharge tube having a connector to be described later (10, 20) fixed to the bracket (30), the heat of the glass tube (2 1 ) is transmitted to the display device side through the bracket (3 〇), but the present invention is advantageous The heat insulation of the gap (12) prevents heat from being transmitted from the glass tube (21) to the bracket (30), and can prevent local cooling of the glass tube (21). When manufacturing the connector (10), as shown in Fig. 5. A plate member (6) in which the lead-out portion (3), the protrusion portion (4), and the barrier body (16) are integrally formed by press molding is formed by press molding. Secondly, the plate member is formed by bending processing ( 6) The tubular body (1) is bent into a ring shape, and the protrusion (4) and the barrier body (16) are bent to form a connector (1) shown in Fig. 6. Install the connector (10) to the discharge tube (20) to assemble the discharge tube (1〇, 20) with the connector-10-200917594, as shown in Figures 7(a) and 7(b) As shown, the barrel (1) of the connector (10) is attached to the end (21a) of the glass tube (21), and the lead-out portion (3) is arranged in parallel with the lead (22) of the discharge tube (20). The lead (22) is passed through the through hole (16) of the protrusion (4). At this time, until the end portion (21a) of the glass tube (2 1 ) abuts against the barrier body (16), the discharge tube (20) is inserted from the other end (i c ) of the cylinder (1). The barrier body (16) then positions the discharge tube (20) in the barrel (1). Next, the protrusion (4) and the lead (22) are fixed by a solder material (5) such as solder, and the connector (10) is electrically connected to the lead (22) of the discharge tube (20). 7 (c) and 7 (d), at least part of the through hole (13) and the lead (22) of the protrusion (4) are immersed in the molten material (5) of the melt, attached to After the solder material (5) inside the through hole (13) of the protrusion (4) is cooled, the protrusion (4) can be connected to the lead (22). In the past, the lead wire (22) of the discharge tube (20) was connected to the bundle wire by hand soldering, but the cylinder (〗) was mounted after the end (21a) of the glass tube (21), and the protrusion was formed. (4) The through hole (13) and the lead (22) are immersed in the molten material (5) of the melt. 'If the cooling is completed, the lead (22) can be connected to the connector (i 〇). It is simpler and can reduce manufacturing costs. When the discharge tube (10, 20) having the connector is assembled to the display device, a metal holder (30) is placed adjacent to the light guide plate on the back surface of the liquid crystal panel. The bracket (30) is connected to the power supply unit of the display device through wiring. As shown in Fig. 8, the bracket (30) is provided with a base member (31), and -11 - 200917594 integrated with the base member (31) and extending in the vertical direction with respect to the base member (31). A pair of clamping portions (32) and a base member (3 1) are fixed to a display device (not shown). As shown in Fig. 9, the discharge tube (1 〇, 20)' having the connector is disposed between the opposing pair of grease holding portions (3 2 ). The clamping portion (32) has a curved surface of the cylinder (1) that clamps the connector (1), and the pressing cylinder (1) presses the clamping portion (32) in a direction away from each other' Resilient recovery is used to hold the discharge tube (10, 20) with the connector. The connector (10) is mounted at the end (21a) of the glass tube (21) (not shown). The cylinder (1) is held by the nip portion (32) of the bracket (30), and the power supply is supplied from the power supply device of the display device through the cylinder (1), the lead portion (3), and the protrusion portion (4). The discharge tube (20) can be lit by feeding the lead (22) of the discharge tube (20). When the cylinder (1) is held by the bracket (30), the external force applied to the lead (22) through the cylinder (1) is relieved by the lead-out portion (3) and the protrusion portion (4). 20) The glass tube (2 1 ) conveys a lot of stress. The embodiment of the present invention is not limited to the embodiment of the first to ninth embodiments, and can be modified. For example, as shown in Fig. 1, the lead-out portion (3) of the connector (10) may be formed by a plurality of belt members. The protruding portion (4) is formed to be bent upward from the front end (3a) of the lead-out portion (3), but is not limited to the meandering, and the protruding portion (4) may be formed from the front end of the lead-out portion (3) ( 3 a) Start bending. Further, the through hole (13) of the protruding portion (4) is not limited to a circular shape, and may be formed in an angular shape. As shown in the figure, the front end portion of the projection (4) may be formed in a Y shape or a U-shaped notch portion. As shown in Fig. 12, a part of the portion (3) of the -12-200917594 may be formed to form a meandering portion (1 8 ) ' either in the protruding portion (4) or in the protruding portion (4) and the leading portion (3). The two sides form a meandering portion (18) (not shown). The meandering portion (18) is more gently transferred to the stress between the cylindrical body (1) and the protruding portion (4) by utilizing its own elasticity'. In addition, when the discharge tube (20) is turned on or off, 'the glass tube (2 1 ) is extended or contracted by thermal expansion, but the tortuous portion (18) that expands and contracts in the longitudinal direction of the discharge tube (20), absorbs the glass tube. The amount of extension or contraction of (2 1 ) ' by the extension or contraction of the glass tube (2 1 ) can alleviate the stress applied to the glass tube (2 1 ). The same as the electrode holding portion in Japanese Patent Laid-Open No. 1, as shown in Fig. 13. It is also possible to form the belt body (33) formed by bending the base member (3 1 ) in the vertical direction on the bracket (30). The support portion (3 4 ) formed at the front end portion of the belt body ( 3 3 ) supports the lead-out portion (3) or the protrusion portion (4) of the connector (10) to alleviate the impact at the time of connection. Connect the connector (10) to the bracket (30). After the support portion (34) and the lead-out portion (3) or the protrusion portion (4) of the connector (10) are fixed by the welding material, the discharge tube (10, 20) with the connector can be fixed to the bracket ( 30). The illustrated discharge tube (10, 20) with connectors is such that the protrusions (4) and the leads (2 2) are fixed by the solder material (5) before being assembled into the display device, but can also be assembled The display device is then fixed with the solder material (5). According to the embodiment of Figures 1 to 3, the power can be supplied to the electrode (24) of the discharge tube (20) through the bracket (3 〇) and the connector (10), and the discharge tube (20) can be lifted. Connection workability with the power supply unit. However, the discharge gas filled in the glass tube (21) is a non-conducting body when the discharge tube (2〇-13-200917594) is not lit, but the discharge tube (20) becomes a conductor when it is lit. A discharge gas or a glass tube (21) which is filled in the glass tube (21), and a conductor such as a metal connector is disposed adjacent to the outer peripheral surface of the glass tube (21). And a free electric capacity (parasitic capacitance) is generated between the cylinders (1). There is also a case where a high voltage of 1 〇〇〇V is applied to the electrode (24) in the discharge tube (20), and when the discharge tube (20) is lit by high-frequency discharge, a leakage proportional to the free capacitance is generated. Current. As a result, there is a problem that the power efficiency of the inverter circuit in which the discharge tube (20) is turned off is lowered. When the discharge tube is lit, a plasma (light column) is generated at a position separated from the front end portion of the electrode by a distance, but according to the above-mentioned Japanese Patent Document 4, since the end of the connector is not more than the front end of the electrode The extension is also extended so that free electrical capacity can be prevented between the plasma and the connector. However, in the connector disclosed in Patent Document 4, the length of the connector inserted in the end portion of the glass tube is shorter than that of the connector in the past, so it is necessary to arrange the bonding between the glass tube and the connector. To fix the connector to the end of the glass tube. The adhesive composed of the epoxy resin may cause deterioration due to heating or ultraviolet rays caused by the discharge of the discharge tube. Further, the electrode portion 'encapsulated in the discharge tube of the connector via the adhesive and the glass tube generates free electric capacity between the discharge gas, the glass tube, the adhesive, and the connector', and the free capacitance cannot be sufficiently reduced. Hereinafter, another embodiment of the discharge tube connector, the discharge tube having the connector, and the surface light source device of the present invention will be described with reference to Figs. 14 to 25. According to a further embodiment of the present invention, it is possible to provide a discharge tube connection for reducing the free electric capacity generated by the connector (1 〇) of the metal tube - 200917594 (1 〇) mounted on the end (2 1 a ) of the glass tube (2 1 ). The device (10), the discharge tube (10, 20) with the connector and the surface light source device (10, 20, 30). As shown in Fig. 14, the connector (10) of the present embodiment is formed by a hollow cylindrical body (1) and a connecting portion (2) which end the end portion (21a) of the glass tube (21), and is connected. The portion (2) includes a strip-shaped lead-out portion (3) extending from one end (1a) of the cylindrical body (1) toward the outer side in the axial direction of the cylindrical body (1), and a lead-out portion (3) extending from the lead-out portion (3) The front end (3a) begins to meander or bend the formed protrusion (4). The cylinder (1) has a plurality of hemispherical balls (1 i ) projecting inward in the diametric direction as shown in Fig. 15, and the cylinder (1) is fitted to the end of the glass tube (21) (21) In a), the top of the ball (1 1 ) contacts the outer peripheral surface of the glass tube (2 1 ) to be fixed to each other. Further, a gap (1 2 ) is formed between the inner circumferential surface ( 1 b ) of the cylindrical body (1) in which the ball is not provided and the end portion (2 1 a ) of the glass tube (2 1 ). In the embodiment, as shown in the first to fifth figures, four balls (11) are formed in the circumferential direction of the cylindrical body (1), and three balls (1 1) are formed in the longitudinal direction. There are 12 balls (1 1 ). When the cylinder (1) is attached to the end (2 1 a ) of the glass tube (2 1 ), the cylinder (1) is separated from the glass tube (21) by a distance by a ball (丨i). A cavity (air layer) caused by the gap (1 2 ) is formed between the cylinder (1) and the glass tube (21). The magnitude of the free capacitance is proportional to the dielectric constant of the dielectric disposed between the discharge gas and the cylinder (1), and inversely proportional to the separation distance between the discharge gas and the cylinder -15-200917594 (1) . In the past, a connector comprising a glass tube having a dielectric constant of about 3.7 to 10.0 and a silicone resin having a dielectric constant of about 3.5 to 5.0 is disposed between the discharge gas and the connector. The connector (1 〇) is adjacent to the glass tube (21) between the discharge gas and the connector to form an air layer having a dielectric constant of 1.0, and the ball is used by the ball (1 I ) (1) The glass tube (21) is spaced apart by a certain distance, so that the free capacitance generated by attaching the connector (1) to the discharge tube (20) can be suppressed more than in the past. The distance between the cylinder (1) and the glass tube (2 1 ) is appropriately set according to the power efficiency required by the frequency conversion circuit of the discharge tube (20), but with the inner circumference of the cylinder (1) The increase in the distance from the outer peripheral surface (21b) of the glass tube (21) increases the electric power efficiency by reducing the free electric capacity generated by the discharge gas, the glass tube (21), and the cylinder (1). The connector (10) has a plurality of openings (1 4 ) formed in a circular shape in the cylindrical body (1). The opening portion (14) is an outer peripheral surface (2 1 b ) of the glass tube (2 1 ). Exposed to the outside. The opening portion (14) is formed to diffuse between the ball (11) and the ball (11) to prevent the mechanical strength of the cylinder (1) from being locally lowered. In the present embodiment, as shown in Fig. 15, a total of seven openings (14) are formed on each side surface of the cylindrical body (1), and three openings (14) are formed on the bottom surface. The opening portion (14), however, the number, size, and shape of the opening portion (14) can be appropriately changed depending on conditions such as the size and strength of the cylindrical body (1). The free electric capacity generated between the discharge gas, the glass tube (2 1 ) and the cylinder (1) is proportional to the surface area of the cylinder (1) facing the glass tube (2 1 ) -16-200917594, The distance between the glass tube (21) and the barrel (1) is inversely proportional. By forming a plurality of openings (14) in the cylindrical body (1), the opposing area of the cylindrical body (1) with respect to the glass tube (2 1 ) can be reduced, so that the free capacitance can be reduced. Further, as the center of the glass tube (21) faces, the total area of the opening (14) of the cylinder (1) is enlarged or the ball (1 1 ) is formed deeper, and the cylinder (1) and the glass are enlarged. The tube (2 1 ) is spaced apart such that the central cylinder (1) facing the glass tube (21) extends more than the electrode (24), and the free capacitance can be suppressed by using the plurality of openings (14) Increase. Therefore, it is not necessary to fix the glass tube and the connector with an adhesive as in the past connector, and the connector (1 〇) can be inserted and fixed by the barrel (1) having a sufficient length in the axial direction. End portion (2 1 a ) of the glass tube (2 1 ) As shown in Fig. 14, the cylindrical body (1) is provided with an electrode encapsulating portion (7) for enclosing the electrode (24) via a glass tube (21) And an extending package portion (8) extending from the electrode package portion (7) toward the center of the glass tube (2 1 ). In the present embodiment, the opening (14) is formed to diffuse into the entire body (1), but the opening (14) is formed at least in the electrode package portion (7) and the extended package portion (8). In the electrode encapsulation portion (7), and in the extending package portion (8) extending from the electrode encapsulation portion (7) toward the center of the glass tube (2 1 ), a plurality of openings (14) are formed, thereby effectively reducing the electrode The free electric capacity generated by the plasma caused by the front end portion (24a) of (2 4 ). In the connector (1) of the present embodiment, the complementary multiplication effect of the opening (14) and the ball (1 1 ) can greatly reduce the mounting of the connector (1 〇) to the discharge tube (20). The free capacity produced. -17- 200917594 When the connector (10) is manufactured, as shown in Fig. 18, the connection portion (2), the barrier body (16), the ball (1 1 ), and the opening are formed by a metal plate by press molding. a plate member (6) formed by a body such as a portion (14). Next, the plate member (6) is bent into a ring shape by bending to form a cylindrical body (1), so that the protruding portion (4) or The barrier body (16) is bent or bent to form the connector (1〇) shown in Fig. 19. When the connector (1〇) is attached to the discharge tube (20) to assemble the discharge tube (10, 20) with the connector, the cylinder (1) of the connector (1 〇) is attached to the glass tube (21). In the end portion (21a), the protruding portion (4) of the connecting portion (2) and the lead wire (22) are fixed by a solder material (5) such as solder, and the connector (1) and the discharge tube (20) are attached. The leads (22) are electrically connected. When the surface light source device (10, 20, 30) is assembled by the discharge tube (10, 20) of the connector, the back surface of the liquid crystal panel constituting the display device (not shown) is disposed adjacent to the light guide plate. Metal bracket (30). As shown in Fig. 20, the surface light source device (1, 20, 30) is provided with a discharge tube (20) and a connector (21a) attached to the end of the glass tube (21) of the discharge tube (20). (1), and the holder (30) holding the connector (10) to hold the discharge tube (20) at a specific position. The bracket (3 turns) is formed of a metal having high conductivity similar to that of the connector (10), and is connected to a power supply device of the display device through wiring. The bracket (30) is formed in the same manner as the cylindrical body (1), and has a tubular ring body (1) having a pair of mouth portions (3 5 ) intermittently ring-shaped and expanded by a specific diameter dimension to assemble the connector (丨〇). It has a reduced diameter elastic force. The bracket (30) is provided with a base member (3 1 ) and integrally formed with the base member (31) to form a pair of clamping portions (32), and the base member (-18-200917594 31) is fixed to the display device (not The clamping portion (32) has a curved surface of the cylinder (1) for holding the connector (10), and the pressing portion (1) is pressed, and the clamping portion (32) is spaced apart from each other. After the direction moves, the elastic tube is used to hold the discharge tube (1〇, 2〇) of the connector. As shown in Fig. 20 and Fig. 21, the bracket (30) has an opening hole (37) integrated with at least a portion of the opening portion (14) of the cylindrical body (1) when the connector (10) is held. . When the connector (1) is held by the bracket (30), the opening hole (37) integrated with the opening (14) of the cylinder (1) is used because the glass tube (21) to be covered by the cylinder (1) Since it is opened to the outside, the opening (14) of the cylinder (1) is closed by the bracket (30), and the free capacitance can be prevented from being generated by the discharge gas, the glass tube (21), and the holder (30). In the present embodiment, the opening (31) is formed in a pair of brackets (30) in a rectangular shape, and the opening portions (14) formed on the respective side surfaces of the cylinder (1) are opened and exposed. The external 〇 connector (1 〇) is a pair of ends (21a) (not shown) that are attached to the glass tube (2 1 ). The cylinder (1) is clamped by the clamping portion (32) of the bracket (30). The bracket (30) is electrically connected to the connector (10), and the power supply device of the display device is transmitted through the bracket (30) and the cylinder. The body (1) and the connecting portion (2) 'send power to the lead (2 2 ) of the discharge tube (2 ,), and the discharge tube (2 〇) can be turned on. The embodiment of the present invention is not limited to the embodiment shown in the first to fourth figures, and can be modified. For example, as shown in the connector (4 〇) in Fig. 2, it is also possible to replace the opening portion (丨4), and instead form a plurality of ridges protruding outward in the diameter direction in the cylindrical body (1) -19-200917594. Edge (concave) (1 5 ). The ridge (15) is formed in a hemispherical shape in which a part of the cylindrical body (1) is bent outward, and when the cylindrical body (1) is attached to the end portion (21a) of the glass tube (2 1 ), a ridge is formed (1 5). The distance between a portion of the cylinder (1) and the glass tube (2 1 ) is increased by a distance. Thereby, similarly to the opening (14), the free capacitance generated by the connector (40) can be reduced. When the opening (14) is provided in the cylindrical body (1), the residue of the metal plate formed by the opening (14) is generated when the connector (10) is manufactured. However, instead of the opening (1 4), the opening is not formed. The raised edge of the hole (15), so that a connector (10) that does not cause residue can be formed. Further, by forming a plurality of ridges (15), the mechanical strength of the cylinder (1) can be increased. When the connector (40) is held by the bracket (30), the bracket (30) is separated from the connector (1〇) by a rim (1 5), and the bracket (30) and the connector (40) are also used. A gap is formed between them (not shown). Thereby, it is not necessary to form the open hole (37) in the holder, and the free capacitance due to the discharge gas, the glass tube (2 1 ), and the holder (30) can be prevented. However, it is also possible to use the bracket (30) to hold the connector (40), integrate the ridge (15) with the open hole (37) of the bracket (30), and the rim from the open hole (37). (1 5) Open to the outside. The ridge (15) of the cylinder (1) abuts against the bracket (30) without being hindered, and the bracket (30) can be easily and surely held by the bracket (30). The ball (Π) and the raised edge (15) are not limited to a hemispherical shape, and may be formed continuously in a line shape in the longitudinal direction of the cylindrical body (1) or in a ring shape in the circumferential direction. It is also possible to form an opening (1 4 ) at the top of the ball ( -20- 200917594 1 1 ) as shown in the connector (50) in Fig. 2, in contact with the glass tube (outer peripheral surface (2 1) b) The top of the bead (1 1 ) forms an opening ( thereby further reducing the pair of the cylinder (1) against the glass tube (2 1 ). The free capacitance can also be reduced. It can also be as shown in Fig. 24. (60) shows an opening (1 4) shared with the electrode package portion (7) package portion (8) in the cylindrical body (1). The connector (60) (1) ' has a connection with respect to the foregoing The device (10) is larger and has a rectangular shape opposite to the opening portion (14). As shown in Fig. 25, the opening portion (1 4 ) of the sharpener (60) is such that the slave electrode (2 4 ) and the slave electrode (2) The front end portion (24a) starts with only a few spaced glass tubes (a part of the 2 i closed space (23) is opened from the connector (1 〇). The opening portion (1 4 ) of the barrel f can also be along the barrel (1) The edge portion or the notch portion (not shown) is formed. Further, it may be further adjacent to the front end portion (24a) of the electrode than the one end (ia) of the cylindrical body (1) on which the (2) is formed. Another cylinder (1) The end (ic) has a plurality of openings (14), and the free capacitance generated by the electrode (24) portion (24a) can be further reduced. Further, the cylindrical body (1) can be formed by a metal. To greatly reduce the opposing area of the cylindrical body (1) of the glass tube (21). According to the connector for a discharge tube of the present invention, the surface light source device with the connector reduces the mounting of the metal connector (1 〇) to ( The free electric capacity generated at the end of 20), thereby preventing the current from being lowered by the electric current, and reducing the 14) of the discharge tube (20), forming the area connector and the extended barrel for use. Connection 1 (1) of the connecting pole (24) The corner connecting portion (24) forms a plurality of front ends for the use of the net for the glass tube and the discharge tube to stop the power consumption - 21 - 200917594 [Inventive effect] Discharge tube and connection When the device is assembled or the discharge tube is assembled to the display device, the stress applied to the lead of the discharge tube is relieved by the connector to prevent cracking between the lead and the glass tube, and a highly reliable discharge tube can be obtained. And light source device. [Possibility of Industrial Use] The present invention can be suitably applied to, for example, a cold cathode fluorescent discharge tube used in a light source device such as a backlight of a liquid crystal display. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an embodiment of a discharge tube having a connector of the present invention. Fig. 2 is a cross-sectional view showing the connector of Fig. 1. Fig. 3 is a cross-sectional view showing the connector of Fig. 1 in addition. Fig. 4 is a plan view showing the connector of Fig. 1. Fig. 5 is a plan view showing a plate member forming the connector of Fig. 1. The table 6 is a diagram of the connection benefit _LL in the table 1 of the table. Fig. 7 is a view showing a process of connecting the projections to the leads. Figure 8 is a cross-sectional view of the stent. Fig. 9 is a perspective view showing a process of mounting a discharge tube having a connector to a holder. Fig. 1 is a perspective view showing another embodiment of the lead-out unit. -22- 200917594 Fig. 1 1 is a perspective view showing another embodiment of the protruding portion. Fig. 12 is a cross-sectional view showing the discharge tube with a connector in Fig. 1 having a projection in the lead-out portion. Figure 13 is a perspective view showing another embodiment of the stent. Fig. 14 is a cross-sectional view showing another embodiment of the discharge tube with a connector of the present invention. Figure 15 is a cross-sectional view showing the connector of Figure 14. Figure 16 is a cross-sectional view showing the connector of Figure 14 in an additional view. Figure 17 is a plan view showing the connector of Figure 14. Fig. 18 is a plan view showing a plate member which forms the connector of Fig. 14. Figure 19 is a perspective view of the connector in Table 14. Fig. 20 is a perspective view showing a process of attaching the discharge tube with a connector of Fig. 14 to a holder. Figure 21 is a side view of the discharge tube with the connector held in the holder. Fig. 22 is a cross-sectional view showing the discharge tube with a connector of Fig. 14 in which the cylindrical body has a raised edge. Fig. 23 is a cross-sectional view showing the discharge tube with a connector of Fig. 14 in which the ball has an opening. Fig. 24 is a perspective view showing a discharge tube having a connector in Fig. 14 in which the cylindrical body has a pair of opening portions. Figure 25 is a cross-sectional view of Figure 24. Figure 26 is a cross-sectional view showing a conventional discharge tube -23- 200917594 [Description of main components] 1 : cylinder 1 a : one end 3 : lead-out portion 3 a : front end 4 : projection 7 : electrode package portion 8 : Extension packet portion 1 〇: Connector 1 1 : Ball 13 : Through hole (notch portion) 1 4 : Opening portion 1 5 : Bulge edge 1 6 : Barrier 1 8 : Bending portion 2 0 : Discharge tube 2 1 : Glass Tube 2 1 a : end 22 : lead 2 3 : closed space 2 4 : electrode 30 : bracket - 24 -