200841539 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（2 0 )，如第2.6 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（23 )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 1 > 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（2 1 )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（2 5 )。前述過的顯示 裝置（未圖示）係具備有將玻璃管（21)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’下述曰本專利文獻1中揭示的金屬製的支 * 4 - 200841539 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。 下述曰本專利文獻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 200841539 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 一 329047號公報 〔專利文獻2〕 日本專利實開昭64 - 4885 1號公報 〔專利文獻3〕 日本專利特開平3 — 2 8 523 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 璃营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 - 200841539 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加應 力的事態予以抑制之放電管用連接器及具連接器之放電管 <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 )、及 從筒體的其中一端（1 a )向該筒體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 曲形成之突起部（4 )。筒體（1 )、導出部（3 )以及突 起部（4 )係由金屬所形成，突起部（4 )則具有貫穿孔或 是缺口部（1 3 )。筒體（1 )安裝到構成放電管（20 )之 玻璃管（2 1 )的端部（21 a )時，從玻璃管（21 )的端部 (2 1 a )開始延伸之引線（22 )，配置到突起部（4 )的貫 穿孔或是缺口部（1 3 )內。被形成爲帶狀又具有彈性之導 出部（3 )和突起部（4)，從筒體（1 )承受到應力時， 容易變形。藉此，在筒體（1)產生應力時，從筒體（1) 傳達到引線（22 )的應力，透過導出部（3 )來緩和，而 可以防止在引線（22 )與玻璃管（2 1 )之間發生龜裂。放 電管用連接器的筒體（〗）安裝到被連接在電源裝置之金 屬製的支架，而從電源裝置透過支架、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。放電管（20 ) 經由連接器利用支架來支撐，不過放電管（20 )的引線（ -7- 200841539 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 φ 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1〜2 5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（〗）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 )開始彎折所形成之突起部（4 )。筒體 φ ( 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。也可以用錕 或銘合金來形成連接器（1 0 )。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 一 側失出之複數個半球狀的球珠（凸部）（11)，筒體（1 )裝配到玻璃管（21 )的端部（21 a )時，在筒體（1 )粗 玻璃管（21 )的端邰（21 a )之間形成間隙（〗2 )。本實 施形態中’如第2圖和第3圖所示，向筒體（I)的周方 -8- 200841539 向和長度方向各形成3個球珠（U )，合計共設有9個球 珠（1 1 )。球珠（I 1 )的數量、大小以及形狀，可以依據 筒體（1)大小的條件等作適度變更。筒體（η形成爲具 有對口部（1 7 )間歇環狀，從特定的直徑尺寸開始擴徑來 裝配到玻璃管（21 )時，具有縮徑彈力。藉此，筒體（1 )在球珠（1 1 )抵接到玻璃管（2 1 )的外周面（2 1 b )的 狀態下，保持在玻璃管（21 )的端部（21 a )。向直徑方 向內側突出而與筒體（1)——體形成阻擋體（16)設置在 筒體（1 )的其中一端（1 a )，筒體（1 )安裝到玻璃管（ 21 )時，玻璃管（21 )的端部（21 a )抵接在阻擋體（L6 )° 導出部（3 )係如第4圖所示，具有形成爲相對於筒 體（1 )和突起部（4 )縮窄寬度，向筒體（1 )的軸方向 延伸之帶狀的平面形狀。因而，導出部（3 )相對於其延 伸方向，向垂直方向的剖面圖很小，具有可撓性，容易向 其上面方向或是下面方向彎曲。本實施形態中，導出部（ 3)的厚度，與突起部（4)的厚度相同，並且與筒體（1 )的厚度相同，但導出部（3 )的寬度和長度，與導出部 (3 )所要求之可撓性的程度相對應，作適度設定。如第1 圖和第4圖所示，突起部（4)具備有：在筒體（1)之中 心軸·（ C !)的延長線上具有中心軸（C2 )且具有相對於放 電管（2 0 )之引線（22 )的剖面積很大的直徑之圓形貫穿 孔（1 3 )。筒體（1 )安裝到玻璃管（21 )的端部（21 a ) 時，從玻璃管（2 1 )的端部（2 1 a )開始延伸的引線（22 -9- 200841539 )，配置到突起部（4 )的貫穿孔（1 3 )內。貫穿孔（】3 )的大小係衡量將放電管（2 〇 )的引線（2 2 )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（1 )偏離 玻璃管（21 )時，導出部（3 )和突起部（4 )容易彎曲， φ 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（1)，而在筒體（1)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（1 0、2 0 )固定在支架（3 〇 )，玻 璃管（2 1 )的熱會透過支架（3 0 )傳達到顯示裝置側，不 φ 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（3 0 )，而可以防止玻璃管（2〗）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 (1 6 )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 邰（4 )和阻擋體（16 )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- 200841539 接器之放電管（10、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（21 )的端部（21 a )抵接到阻擋體（1 6 )爲止，從筒體（1 )的另一端（1 c )插入放電管（2 0 )。阻擋體（1 6 )則在筒體（1 )內進 φ 行放電管（2 0 )的定位。 其次’用焊錫等的焊材（5 )將突起部（4 )與引線（ 2 2 )予以固裝，並將連接器（i 〇 )與放電管（2 〇 )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（1 3 )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（1 )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（2 2 )與連接器（1 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（10、20 )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（3 1 )、及 -11 - 200841539 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（32 )，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（10、20)，被配置在相對向所設置脂二對夾持部 (32)之間。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（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 φ 放電管（1 0、20 )。連接器（1 0 )安裝在玻璃管（2 1 )的 端部（2 1 a )(未圖示）。利用支架（3 0 )的夾持部（3 2 )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 )來緩租 ，不會對放電管（2 0 )的玻璃管（2 1 )傳達很大的應力。 φ 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（3 a )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1 1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1 2圖所示，也可以在導出 -12- 200841539 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（ 1 8 )(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（20)的長度方向伸縮之曲折 部（1 8 )，吸收玻璃管（21)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1 3 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（3 3 )形成在支架（3 0 )。利用被形成在帶體（ 33)的前端部之支撐部（34)，支撐連接器（10)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 (1 〇 )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（1 0、20 )固定在支架（3 0 )。圖示的具連接器之放電管（1 〇、20 )則是突起部（4 )和引線（22 )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 0 )和 連接器（)，將電力供應給放電管（20 )的電極（24 ) ，又可以提高放電管（20)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（20 -13- 200841539 )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（2 1 )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（2 1 )內所 充塡的放電用氣體、玻璃管（2 1 )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1 000 V的高電壓的情形，利用高頻放電 來將放電管（2 0 )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（2 0 )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- 200841539 製的連接器（1 0 )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，本竇施形態的連接器（1 〇 )係由封 包玻璃管（2 1 )的端部（2 1 a )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 φ 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1 5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 1 )，當筒體（1 )裝配到玻璃管（21 )的端部（2 1 a )時， 球珠（11 )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（11)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〗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（1 1 ) 使筒體（1 )與玻璃管（21 )隔開一定距離，在筒體（i ) 與玻璃管（2 1 )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- 200841539 (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 0 )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 1 )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（20 )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（2 1 )的外周面（2 I b )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（1 〇 )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（1 4 )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（U )與球珠（1 1 )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1 5圖所示，在筒 體（Π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（1 4 )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- 200841539 ，與玻璃管（2 1 )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（21 )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 φ 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 0 )插裝固定在玻璃管（2 1 )的端部（2 1 a )。 如第14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（〗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 0 )，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 0 )安 裝到放電管（2 0 )所產生的游離電容量。 -17- 200841539 製造連接器（1 ο )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 )等被一體形成之板構件（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（1 6 )曲折或彎曲而 形成第19圖所示的連接器（1〇)。將連接器（10)安裝 到放電管（20)來組裝具連接器之放電管（10、20)時， g 將連接器（1 〇 )的筒體（1 )安裝到玻璃管（2 1 )的端部 (2 la )，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 0 )與放電管 (20 )的引線（22 )予以電連接。 用具連接器之放電管（1 0、20 )來組裝面光源裝置（ 1 〇、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（ φ 20 )、及安裝在放電管（20 )之玻璃管（21 )的端部（ 2 1 a )之連接器（1 〇 )、及把持連接器（1 〇 )來將放電管 (20 )保持在特定的位置之支架（3〇 )。支架（30 )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（3 0 )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（1 〇 )的筒體（η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（3 1 )成一體形成之一對夾持部（3 2 )，基礎構件（ *18- 200841539 31)被固定在顯示裝置（未圖示）。夾持部（32)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（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（10、20)。 如第2 0圖和第21圖所示，支架（3 0 )具有當把持連 接器（1 〇 )時’與被形成在筒體（1 )支開口部（1 4 )的 至少一部分整合之開放孔（3 7 )。利用支架（3 0 )把持連 φ 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（1 4 )利用支架（30 ) 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（30 )之一對開放孔（37 )，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 φ 連接器（1 0 )係一對被安裝在玻璃管（2 1 )的端部（ 21a)(未圖示）。利用支架（3 0 )的夾持部（3 2 )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 0 )的引線（ 22)，可以將放電管（20)點燈。 本發明的實施形態，並不侷限於第14〜21圖所示的實 施形態，能夠加以變更。例如，如第22圖中的連接器（ 40 )所示，也可以取代開口部（1 4 )，改而在筒體（1 ) •19- 200841539 形成向直徑方向外側突出之複數個隆起緣（凹部）（15) 。隆起緣（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（2 1 a )時 ，形成有隆起緣（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（1 4 )，則製造連接器（1 0 )時會產生開口 部（1 4 )所形成金屬板的殘渣，不過取代開口部（1 4 )， 改而形成沒有貫穿孔的隆起緣（1 5 )，這樣就可以形成不 會產生殘渣的連接器（1 0 )。另外，形成複數個隆起緣（ I 5 )，就可以增加筒體（1 )的機械強度。用支架（3 0 ) 來把持連接器（40 )時，利用隆起緣（1 5 )使支架（3 0 ) 與連接器（10)離開一定距離，也會在支架（30)與連接. 器（40 )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（3 0 )來把持連接器（40 )時，將隆起緣（1 5 )與支 架（3 0 )的開放孔（3 7 )整合，而從開放孔（3 7 )將隆起 緣（15)向外部開放。筒體（1)的隆起緣（15)抵接到 支架（3 0〇不會受到妨礙，可以既容易又確實地利用支架 (3 0 )來把持連接器（40 )。球珠（11)和隆起緣（15) ，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續形成。 也可以如第23圖中的連接器（50 )所示，在球珠（ -20- 200841539 11 )的頂部形成開口部（14 )，在接觸到玻璃管（ 外周面（21b)之球珠（11)的頂部形成開口部（ 藉此來更加減少筒體（η對於玻璃管（2 1 )的對 ，還可以減少游離電容量。也可以如第2 4圖中的 (60)所示，在筒體（1)形成與電極封包部（？） 封包部（8 )共用的開口部（14 )。連接器（60 ) (1) ，具有相對於則述過的連接器（ίο)較大且 φ 長方形之一對開口部（14)。如第25圖所示，利 器（60 )的開口部（14 ) ’使從電極（24 )及從電 )的前端部（24a )開始僅些許隔開之玻璃管（21 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（la)還要更與電極 的前端部（24a )相鄰之筒體（i )的另一端（1 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 0 )安裝到 (20 )的端部時所產生的游離電容量，藉此可以肪 電流導致電力效率的降低，且減少放電管（20 )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 - 200841539 〔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。 第6圖爲表示第1圖中的連接器之立體圖。 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 0圖爲表示導出部的另外實施形態之立體圖。 •22- 200841539 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14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。 第19圖爲表示第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2 1圖爲被保持在支架的具連接器之放電管之側面 圖。 第22圖爲表不在筒體具有隆起緣之第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1 4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一對開口部之第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- 200841539 【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 :隆起緣 16 :阻擋體 1 8 :曲折部 20 :放電管 21 :玻璃管 2 1 a :端部 22 :引線 2 3 :封閉空間 24 :電極 3 〇 :支架 -24-[Technical Field] The present invention relates to a discharge tube connector that is attached to an end portion of a glass tube constituting a discharge tube, and is provided with a discharge tube and a surface of the connector for the discharge tube connector. 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. 2.6, the discharge tube (20), which is well-known, has a glass tube (2 1 ) formed with 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 1 > (2 1 a ) a lead (22 ) made of metal which is led to the outside, and a fluorescent layer which is exposed to the inside of the glass tube ( 2 1 ) and which is irradiated with ultraviolet light generated by discharge of the electrode ( 24 ) (2 5) The display device (not shown) described above is provided with a resin holder for holding or holding the glass tube (21) on the back surface of the liquid crystal panel, and is adjacent to the light guide plate, and the discharge is arranged by the holder. a tube (20). The lead wires (2 2 a) of the both ends (2 1 a ) of the glass tube (2 1 ) are connected by welding, and the power can be supplied from the power supply device of the display device. The discharge tube (20) illuminates the liquid crystal panel from the back side. For this point, the following Patent Document 1 The metal branch of the present invention is provided with a plate-shaped conductive portion, a mounting portion that is attached to the conductive portion, and a vertical portion that is bent from the front end of the mounting portion. An electrode holding portion for supporting a lead of the discharge tube. The lead wire of the discharge tube is fitted into a 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, thereby supplying electric power to the discharge tube. By this, the welding work can be omitted, and the connection workability between 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, which causes a turtle between the lead wire and the glass tube. The cracks cause a chronic leakage of the gas for discharge in the discharge tube over a long period of time. The electrode holding portion of the Japanese Patent Laid-Open Publication No. Hei- No. The impact when the lead wire is fitted to the fitting portion. However, the lead wire of the discharge tube is directly supported by the electrode holding portion. The bracket in Patent Document 1 cannot be charged. The stress applied to the lead wire is reduced, and the crack of the glass tube cannot be completely prevented. The following Patent Document 2 discloses that a metal connector and a support connector that are fitted to the end of the glass tube The metal tube holder is held at a specific position by the discharge tube. The lead wire of the discharge tube passes through the hole portion formed at the bottom of the connector, and the connector and the lead wire are fixed. In this case, the connector is fitted and formed. In this manner, the groove-shaped fitting portion of the over electrode holding portion can supply electric power to the discharge tube through the connector. However, the metal connector is fitted to the end portion of the glass tube to make the connection. The inner peripheral surface of the device is in close contact with the outer peripheral surface of the glass tube. When the discharge tube is lit, the end portion of the glass tube is partially cooled by the connector. Thereby, the mercury in the glass tube is concentrated at the end of the glass tube, and the discharge tube cannot discharge the uniform light in the length direction of 200841539, 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 toward the inner side in the diametrical direction are formed in the connector, and a gap is formed between the ends of the connector to 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. No. Hei. No. Hei. Document 4] Japanese Patent No. 3462306 [Summary of the Invention] <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 bat 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 - 200841539 It is easy to crack the glass tube. Accordingly, it is an object of the present invention to provide a discharge tube connector and a discharge tube having a connector which suppress the situation in which a stress is applied to a lead of a discharge tube. <Means for Solving the Problem> The connector for a discharge tube according to the present invention includes a cylindrical body (1) and a strip extending from one end (1 a ) of the cylindrical body to the outer side in the axial direction of the cylindrical body The lead-out portion (3) and the protrusion portion (4) formed by bending from the front end (3a) of the lead-out portion (3). The cylindrical body (1), the lead-out portion (3), and the protruding portion (4) are formed of metal, and the protruding portion (4) has a through hole or a notch portion (13). When the cylindrical body (1) is attached to the end portion (21a) of the glass tube (2 1 ) constituting the discharge tube (20), the lead wire (22) extending from the end portion (2 1 a ) of the glass tube (21) It is disposed in the through hole or the notch (13) of the protrusion (4). The lead portion (3) and the protrusion portion (4) which are formed into a strip shape and have elasticity are easily deformed when the tube body (1) receives the stress. Thereby, when stress is generated in the cylindrical body (1), the stress transmitted from the cylindrical body (1) to the lead wire (22) is relieved by the lead-out portion (3), and the lead wire (22) and the glass tube (2) can be prevented. 1) Cracks occur between them. The cylinder of the connector for the discharge tube is attached to a metal bracket connected to the power supply device, and the power is transmitted from the power supply device through the bracket, the cylinder (1), the lead portion (3), and the protrusion (4). The discharge tube (20) can be turned on by supplying the lead (22) to the discharge tube (20). The discharge tube (20) is supported by a bracket via a connector, but the lead of the discharge tube (20) (-7-200841539 22) is not supported by a connector or a bracket. 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 φ optical discharge tube used for a backlight of a display device is used. ~ 2 5 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 will be 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 cylindrical body φ ( 1 ), the lead-out portion (3 ), and the projection portion (4) are integrally formed of a metal such as beryllium bronze having excellent elasticity. The plating treatment is performed with nickel. It is also possible to form the connector (10) with 锟 or Ming alloy. The cylinder (1) has a side in the diameter direction as shown in Fig. 2, in order to maintain the glass tube (2 1 ) at a specific position in the cylinder (1) and increase the mechanical strength for deformation. A plurality of hemispherical balls (protrusions) (11) that are missing, and when the cylinder (1) is assembled to the end (21a) of the glass tube (21), the tube (1) is a thick glass tube (21) A gap (Fig. 2) is formed between the end turns (21 a ). In the present embodiment, as shown in Figs. 2 and 3, three balls (U) are formed in the circumferential direction of the cylindrical body (I) in the direction of the -8-200841539, and a total of nine balls are provided. Beads (1 1 ). The number, size, and shape of the balls (I 1 ) can be appropriately changed depending on the conditions of the size of the cylinder (1). The cylinder (n is formed to have a pair of mouth portions (17) intermittently ring-shaped, and when it is assembled to the glass tube (21) from a specific diameter dimension, it has a reduced-diameter elastic force. Thereby, the cylinder body (1) is in the ball The bead (1 1 ) is held at the end portion (21 a ) of the glass tube ( 21 ) while being in contact with the outer peripheral surface ( 2 1 b ) of the glass tube ( 2 1 ). The diametrical inner side protrudes from the cylindrical body (1) The body forming barrier (16) is disposed at one end (1a) of the cylinder (1), and the end of the glass tube (21) when the cylinder (1) is mounted to the glass tube (21) ( 21 a ) abutting on the barrier body (L6 ) ° The lead-out portion ( 3 ) has a narrowed width with respect to the cylindrical body (1 ) and the protruding portion (4 ) as shown in FIG. 4, and is oriented to the cylindrical body (1) The strip-shaped planar shape in which the axial direction extends. Therefore, the lead-out portion (3) has a small cross-sectional view in the vertical direction with respect to the extending direction thereof, and has flexibility, and is easily bent in the upper direction or the lower direction. In the present embodiment, the thickness of the lead-out portion (3) is the same as the thickness of the protruding portion (4), and is the same as the thickness of the cylindrical body (1), but the width of the lead-out portion (3) is wide. The degree and length are appropriately set in accordance with the degree of flexibility required by the lead-out unit (3). As shown in Figs. 1 and 4, the protrusion (4) is provided with: in the cylinder (1) The central axis (C!) has a central axis (C2) on the extension line and has a circular through-hole (13) with a large cross-sectional area with respect to the lead (22) of the discharge tube (20). When the body (1) is attached to the end portion (21a) of the glass tube (21), the lead wire (22-9-200841539) extending from the end portion (2 1 a ) of the glass tube (2 1 ) is disposed to the protrusion The through hole (13) of the portion (4). The size of the through hole (3) is a measure of the through hole (1 3 ) through which the lead (2 2 ) of the discharge tube (2 )) passes through the protrusion (4). The workability at the time and the workability when the lead wire (22) is connected to the projection portion (4) by the welding material (5) are appropriately set. The belt portion is formed into a belt portion and has elasticity and flexibility. ) and the protruding portion (4) are easily deformed by an external force. Therefore, when the cylindrical body (1) is displaced from the glass tube (21), the lead portion (3) and the protruding portion (4) are easily bent, and φ prevents the pair of leads (2 2 ). Shi A strong external force, which prevents cracking of the glass tube (2 1 ). In addition, a plurality of balls (11) projecting inward in the radial direction are formed in the cylinder (1), and in the cylinder (1) A gap (1 2 ) is formed between the ends (2 1 a ) of the glass tube ( 2 1 ), and the heat insulation of the gap (12) prevents the cylinder (1) from causing local cooling of the glass tube (2 1 ). 'It is possible to suppress variations in the characteristics of the discharge tube (20). In particular, a discharge tube (10, 20) having a connector to be described later is fixed to a bracket (3 〇), and heat of the glass tube (2 1 ) is transmitted to the display device side through the bracket (30). In the present invention, the heat insulation of the gap (12) is utilized to prevent heat from being transmitted from the glass tube (21) to the holder (30), and local cooling of the glass tube (2) can be prevented. When the connector (10) is manufactured, as shown in Fig. 5, a plate member (in which the lead portion (3), the protrusion portion (4), and the barrier body (16) are integrally formed is formed by press molding by press molding ( 6). Next, the plate member (6) is bent into a ring shape to form a cylindrical body (1), and the protrusion 邰(4) and the barrier body (16) are bent to form a connection as shown in FIG. (1 〇). Install the connector (10) to the discharge tube (20) to assemble the discharge tube (10, 20) with the connector 10-200841539, as shown in Figures 7(a) and 7(b). The cylinder (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 wire (22) passes through the through hole (16) of the protrusion (4). At this time, until the end portion (21a) of the glass tube (21) abuts against the barrier body (16), the discharge tube (20) is inserted from the other end (1c) of the cylinder (1). The barrier body (16) is positioned in the cylinder (1) by φ rows of discharge tubes (20). Next, the protrusion (4) and the lead (2 2 ) are fixed by a solder material (5) such as solder, and the connector (i 〇) and the lead (22) of the discharge tube (2 〇) are electrically connected. As shown in Figures 7 (c) and 7 (d), at least a portion of the through hole (13) of the protrusion (4) and a portion of the lead (22) are immersed in the molten material (5) of the melt. In the middle, the welding material (5) adhering to the inside of the through hole (13) of the protrusion (4) is cooled, and the protrusion (.) (4) and the lead (22) can be connected. In the past, the lead wires (22) of the discharge tube (20) were connected to the bundle wires by hand solder, but the cylinder (1) was mounted after the end (21a) of the glass tube (21), and the protrusions were raised. The through hole (13) and the lead wire (22) of the portion (4) are immersed in the welding material (5) of the melt, and when cooled, the lead wire (2 2 ) can be connected to the connector (1 〇), so The welding operation becomes simple and the manufacturing cost can be reduced. When the discharge tube (10, 20) having the connector is assembled to the display device, a metal holder (30) is disposed 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 (3 1 ), and -11 - 200841539 integrally formed with the base member (31) and extending in a vertical direction with respect to the base member (31). The pair of clamping portions (32) and the base member (31) are fixed to a display device (not shown). As shown in Fig. 9, the discharge tube (10, 20) having the connector is disposed between the opposing pair of grease holding portions (32). The clamping portion (32) has a curved surface of the cylinder (1) that clamps the connector (10), and the pressing cylinder (1) presses the clamping portion (32) in a direction away from each other, and then uses the elastic force. Respond to hold the φ discharge tube (10, 20) with the connector. The connector (10) is attached to the end (2 1 a ) of the glass tube (2 1 ) (not shown). The cylinder (1) is held by the nip portion (3 2 ) of the bracket (30), and passes through the cylinder (1), the lead-out portion (3), and the protrusion portion (4) from the power supply device of the display device. Power is supplied to the lead (22) of the discharge tube (20), and the discharge tube (20) can be turned on. When the cylinder (1) is held by the bracket (30), the external force applied to the lead (22) through the cylinder (1) is used to release the rent by the lead-out portion (3) and the projection portion (4), and the discharge tube is not disposed. The (20) glass tube (2 1 ) conveys a lot of stress. φ 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 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 to bend. 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 Fig. 1, 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 -12-200841539 part (3) may be formed to form a meandering portion (18), or the protrusion (4) or the protrusion (4) and the lead-out portion ( The two sides of 3) form a meandering portion (18) (not shown). The meandering portion (18) can more easily convey the stress transmitted 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 bent 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 21) can be relieved by the extension or contraction of the glass tube (2 1 ) to the stress applied to the glass tube (2 1 ). The same as the electrode holding portion in Japanese Patent Laid-Open No. 1, the first embodiment is shown in FIG. It is also possible to form the belt (3 3 ) formed by twisting the base member (3 1 ) in the vertical direction on the bracket (30). The support portion (34) formed at the front end portion of the belt body (33) supports the lead portion (3) or the protrusion portion (4) of the connector (10) to alleviate the impact at the time of connection, and the connector can be used. (10) Connected to the bracket (30). After the support portion (34) and the lead-out portion (3) or the protrusion portion (4) of the connector (1) are fixed by the welding material, the discharge tube (10, 20) having the connector can be fixed. Bracket (30). The illustrated discharge tube (1 〇, 20) with connectors is such that the protrusions (4) and the leads (22) 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 the first to third embodiments, the electric power can be supplied to the electrode (24) of the discharge tube (20) through the bracket (30) and the connector (), and the discharge tube (20) and the power supply device can be improved. Connection workability. However, the discharge gas filled in the glass tube (21) is a non-conductor when the discharge tube (20-13-200841539) is not lit, but the discharge tube (20) becomes an electric conductor when it is lit, so In the dielectric material, a conductor such as a metal connector is disposed adjacent to the outer peripheral surface of the glass tube (2 1 ), and a discharge gas or a glass tube filled in the glass tube (2 1 ) is used. 1) and free capacity (parasitic capacitance) between the cylinders (1). There is also a case where a high voltage of 1 000 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 current proportional to the free capacitance is generated. . As a result, there is a problem that the power efficiency of the inverter circuit that is lit by the discharge tube (20) 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 of the discharge tube of the connector is sealed by the adhesive and the glass tube, and a free capacitance is generated 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 connector discharge tube, and the surface light source device of the present invention will be described with reference to Figs. 14 to 25. According to another embodiment of the present invention, it is possible to provide a discharge tube connection for reducing the free electric capacity generated by the connector (10) of the metal tube of the metal tube (1 1 ) installed in the end 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 (1 〇) of the sinus embodiment is a hollow cylinder (1) and a connecting portion (2) of the end portion (2 1 a ) of the sealing glass tube (2 1 ). The connecting portion (2) is provided with a strip-shaped φ lead-out portion (3) extending from the one end (1a) of the cylindrical body (1) toward the outer side in the axial direction of the cylindrical body (1), and from the lead-out portion The front end (3 a ) of the portion (3 ) starts to be bent or bent to form a projection (4). The cylinder (1) has a plurality of hemispherical balls (1 1 ) protruding inward in the radial direction as shown in Fig. 15, and the cylinder (1) is fitted to the end of the glass tube (21) ( 2 1 a ), the top of the ball (11) 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) where the ball (11) is not provided and the end portion (2 1 a ) of the glass tube (2 1 ). In the present embodiment, as shown in the fifth to seventh embodiments, 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 2 balls (1 1 ) in total. 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 ball (1 1 ) at a certain distance. A cavity (air layer) caused by the gap (1 2 ) is formed between the cylinder (i) and the glass tube (2 1 ). 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 -15-200841539 (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 (10) 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 1 ). (1) The glass tube (21) is spaced apart by a certain distance, so that the free capacitance generated by attaching the connector (1 〇) 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 circumferential surface of the cylinder (1) When the distance between the outer peripheral surfaces (2 I b ) of the glass tube (2 1 ) is increased, the free electric capacity generated by the discharge gas, the glass tube (21), and the cylinder (1) is reduced, and the electric power efficiency can be improved. The connector (1 〇) has a plurality of openings (1 4 ) formed in a circular shape in the cylindrical body (1 ), and the opening portion (1 4 ) is an outer peripheral surface of the glass tube (2 1 ) (2 1 ) b) exposed to the outside. The opening portion (14) is formed to diffuse between the ball (U) and the ball (1 1 ) to prevent the mechanical strength of the barrel (1) from being locally lowered. In the present embodiment, as shown in Fig. 15, a total of seven openings (14) are formed in each of the side faces of the cylindrical body, and three openings (14) are formed on the bottom surface. The opening portion (14), but 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), a discharge gas, a glass tube (2 1 ), and The free electric capacity generated between the cylinders (1) is proportional to the surface area of the cylinder (1) opposite to the glass tube (2 1 ) -16-200841539, and the glass tube (2 1 ) and the cylinder (1) The distance is inversely proportional to each other. By forming a plurality of openings (14) in the cylinder (1), the opposing area of the cylinder (1) with respect to the glass tube (2 1 ) can be reduced, so that the free capacitance can be reduced. To the center of the glass tube (21), 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 tube are enlarged (21). a distance between the central cylinder (1) facing the glass tube (21) and the electrode (24), using a plurality of openings (1) 4) It is still possible to suppress the increase in free electric capacity. Therefore, it is not necessary to fix the glass tube and the connector with an adhesive as in the past connector, and the cylindrical body (1) having a sufficient length in the axial direction can be used. The connector (10) is inserted and fixed to the end (2 1 a ) of the glass tube (2 1 ). As shown in Fig. 14, the barrel (1) is provided with a battery tube (21) for encapsulating the electrode (24) an electrode encapsulation portion (7) and an extended encapsulation portion (8) extending from the electrode encapsulation portion (7) toward the center of the glass tube (2 1 ). In the present embodiment, the opening portion is formed (Fig. 4) Spreading to the entire cylinder (1), but the opening portion (14) is formed at least in the electrode encapsulation portion (7) and the extended encapsulation portion (8). In the electrode encapsulation portion (7), and in the slave electrode encapsulation portion ( 7) The extending package portion (8) extending toward the center of the glass tube (2 1 ) forms a plurality of openings (14), thereby effectively reducing the plasma caused by the front end portion (24a) of the electrode (24) The generated free capacitance. The connector (10) of the present embodiment uses the opening (1 4 ) and the ball (1) 1) The complementary multiplication effect can greatly reduce the free capacitance generated by mounting the connector (10) to the discharge tube (20). -17- 200841539 When manufacturing the connector (1 ο ), as in the first As shown in Fig. 18, a plate member (6) in which a joint portion (2), a barrier body (16), a ball (1 1 ), an opening portion (1 4 ), and the like are integrally formed is formed by press molding. Next, the plate member (6) is bent into a ring shape by bending to form a cylindrical body (1), and the protrusion portion (4) or the barrier body (16) is bent or bent to form a 19th image. Connector shown (1〇). When mounting the connector (10) to the discharge tube (20) to assemble the discharge tube (10, 20) with the connector, g attach the barrel (1) of the connector (1 〇) to the glass tube (2 1 ) At the end (2 la ), the protrusion (4) of the connection portion (2) and the lead (22) are fixed by a solder material (5) such as solder, and the connector (10) and the discharge tube (20) are attached. The leads (22) are electrically connected. When the surface light source device (1 〇, 20, 30) is assembled by the discharge tube (10, 20) of the device connector, the back surface of the liquid crystal panel constituting the display device (not shown) is adjacent to the light guide plate. A metal bracket (30) is provided. As shown in Fig. 20, the surface light source device (1〇, 20, 30) is provided with a discharge tube (φ 20 ) and an end portion ( 2 1 a ) of the glass tube (21 ) attached to the discharge tube (20). The connector (1 〇) and the holder (3 〇) holding the connector (1 〇) to hold the discharge tube (20) at a specific position. The holder (30) 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 body (n ,) in which the mouth portion (3 5 ) is intermittently ring-shaped and the diameter is expanded by a specific diameter to assemble the connector (1 ,). The frame (30) is provided with a base member (3 1 ) and a pair of clamping portions (3 2 ) integrally formed with the base member (31), and the base member (*18-200841539 31) It is fixed to a display device (not shown). The clamping portion (32) has a curved surface of the cylinder (1) that holds the connector (1), and the cylinder (1) is pressed, and the clamping portion (3) 2) will move in a direction separating from each other, and then use the elastic force to return the discharge tube (10, 20) of the connector. As shown in Fig. 20 and Fig. 21, the bracket (30) has a handle connection. (1 〇)' is an open hole (3 7 ) integrated with at least a part of the opening (14) of the cylindrical body (1). The bracket (30) is used to hold the φ connector (1 〇) At this time, the opening hole (37) integrated with the opening portion (14) of the cylindrical body (1) is opened to the outside by the glass tube (21) covered by the cylindrical body (1), so that the cylindrical body ( The opening portion (14) of 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 rectangular portion is used. Formed in one of the brackets (30), the opening holes (37) are opened, and the seven opening portions (14) formed on the respective side surfaces of the cylinder (1) are opened to be exposed to the external 〇φ connector (1 0). The end portion (21a) (not shown) attached to the glass tube (2 1 ) is clamped by the nip portion (3 2 ) of the bracket (30), and the bracket (30) is held. Electrically connected to the connector (10), from the power supply device of the display device, through the bracket (30), the cylinder (1) and the connecting portion (2), supplying electric power to the lead of the discharge tube (20) (22) The discharge tube (20) can be turned on. The embodiment of the present invention is not limited to the embodiment shown in Figs. 14 to 21, and can be modified. For example, the connector (40) in Fig. 22 In place of the opening portion (1 4 ), a plurality of ridges protruding outward in the diametrical direction may be formed in the cylindrical body (1) • 19-200841539 instead. (recessed portion) (15). The raised edge (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 (2 1 a ) of the glass tube (2 1 ) The distance between a portion of the cylindrical body (1) having the raised edge (15) and the glass tube (2 1 ) is increased by a distance therebetween, whereby the connector (40) can be reduced as in the opening portion (14). The free capacity produced. When the opening (1 4 ) is provided in the cylindrical body (1), the residue of the metal plate formed in the opening (14) is generated when the connector (10) is manufactured, but instead of the opening (14), it is formed instead. There is no ridge (15) of the through hole, so that a connector (10) which does not cause residue can be formed. Further, by forming a plurality of ridges (I 5 ), 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 (10) by a rim (1 5), and the bracket (30) is connected to the bracket (30). 40) 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 electric capacity 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), and integrate the ridge (15) with the open hole (37) of the bracket (30), and from the open hole (37) The ridge (15) is open to the outside. The ridge (15) of the cylinder (1) abuts against the bracket (the 30 〇 is not obstructed, and the bracket (30) can be easily and surely held by the bracket (40). The ball (11) and The raised edge (15) is not limited to a hemispherical shape, and may be continuously formed in a line shape in the longitudinal direction of the cylindrical body (1) or continuously formed in a ring shape in the circumferential direction. It may also be as shown in Fig. 23. As shown in the connector (50), an opening portion (14) is formed at the top of the ball (-20-200841539 11), and an opening portion is formed at the top of the ball (11) contacting the glass tube (outer peripheral surface (21b) ( Thereby, the cylinder (the pair of η with respect to the glass tube (2 1 ) can be further reduced, and the free electric capacity can also be reduced. It can also be formed in the cylinder (1) as shown in (60) of Fig. 24; The opening portion (14) shared by the package portion (?). The connector (60) (1) has a larger connector and a pair of φ rectangles with respect to the connector (the above) ( 14) As shown in Fig. 25, the opening (14) ' of the sharpener (60) is only slightly separated from the front end portion (24a) of the electrode (24) and the electric device. A part of the glass tube (21 closed space (23) is opened from the connector (1 〇). The opening (14) of the tube f may be formed along the edge of the cylinder (1) or formed with a notch (not shown). Alternatively, the other end (1 c) of the cylinder (i) adjacent to the front end portion (24a) of the electrode (1) of the cylinder (1) formed with (2) may be further • Several openings (1 4 ). The free capacitance due to the electrode (24) (24a) can be further reduced. Further, the metal can be formed into a cylindrical body (1). Reducing the opposing area of the cylinder (1) of the glass tube (21). According to the connector for a discharge tube of the present invention, the surface light source device having the connector reduces the mounting of the metal connector (10) to (20) The free capacity generated at the end portion, whereby the power efficiency can be reduced by the fat current, and 14) of the discharge tube (20) is reduced, and the connection connector is formed into the area connector and the extended barrel ( 24) The seal 1 (1) corner joint (24) forms a large front end to prevent leakage of the glass tube and the discharge tube by the net Power consumption-21 - 200841539 [Effect of the invention] When the discharge tube is assembled with the connector 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 the lead wire and the glass tube When a crack occurs, a highly reliable discharge tube and a light source device can be obtained. [Industrial Applicability] The present invention can be suitably applied to, for example, a cold cathode fluorescent discharge of a light source device used for a backlight of a liquid crystal display or the like. tube. 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. Fig. 6 is a perspective view showing the connector in Fig. 1. 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. 10 is a perspective view showing another embodiment of the lead-out unit. • 22- 200841539 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. Fig. 19 is a perspective view showing the connector of Fig. 14. Fig. 20 is a perspective view showing a process of attaching the discharge tube with a connector of Fig. 14 to a holder. Fig. 2 is a side view of the discharge tube with the connector held in the holder. Figure 22 is a cross-sectional view showing the discharge tube with connector of Figure 14 which is not in the rim of the cylinder. Fig. 23 is a cross-sectional view showing the discharge tube with the connector of Fig. 4 in which the ball has an opening. Fig. 24 is a perspective view showing the discharge tube with the connector of Fig. 14 in which the cylindrical body has a pair of openings. Figure 25 is a cross-sectional view of Figure 24. Figure 26 is a cross-sectional view showing the discharge tube of the past -23- 200841539 [Description of main components] 1 : The cylinder 1 a : one end 3 : the lead-out portion 3 a : the front end 4 : the projection 7 : the electrode package portion 8 : Extension packet portion 1 〇: Connector 1 1 : Ball 13 : Through hole (notch portion) 1 4 : Opening portion 15 5 : Bulge edge 16 : Barrier 1 8 : Bending portion 20 : Discharge tube 21 : Glass tube 2 1 a : end 22 : lead 2 3 : closed space 24 : electrode 3 〇 : bracket - 24 -