1335270 九、發明說明 · 【發明所屬之技術領域】 本發明是有關將相稱於貼合的基板的大小的薄片狀的 薄膜貼附於基板之薄膜貼附方法及其裝置》 【先前技術】 在液晶顯示面板或電漿顯示面板等的製作工程中是使 一倂具有提升明暗對比度或色再現性、阻斷自面板放出的 電磁波或紅外線、防止周邊影像映入畫面、防止面板破損 等各種的機能之機能性薄膜（以下簡稱薄膜）貼附於貼合2 片的玻璃板的狀態之液晶顯示面板或電漿顯示面板等（以 下簡稱基板）的表面，藉此實現良好的畫像品質。 薄膜貼附時，是使用將基板的顯示面朝上，從基板的 上方來供給相稱於貼合的基板的大小之薄片狀的薄膜而貼 附之薄膜貼附裝置。 因爲在薄膜塗佈有黏著材’所以使用保護薄膜來覆蓋 黏著材表面，而使能夠防止在使用前異物附著、或防止黏 著材變形、或薄膜彼此間重疊。 如此的薄膜是使黏著材保護薄膜朝上設定（裝著）於吸 附保持台，在貼附之前剝離黏著材保護薄膜’使吸附保持 台反轉在薄膜的黏著材露出的狀態下配置於基板上方。 薄膜爲了將貼附的一端接近基板而使傾斜’以壓著滾 筒（roll)推壓而進行前端貼附，使基板移動於拉出薄膜的 方向，藉此進行貼附。 -5- 1335270 此時，薄膜是以壓著滾筒來依序貼附前不會落下至基 • 板上面的方式，在被吸附保持於吸附保持台面的狀態下滑 動於吸附保持台面。 顯示如此的技術者，有記載於下記專利文獻1〜3者。 [專利文獻1]特開2003-276091號公報 . [專利文獻2]特開平1 1-17〇470號公報 • [專利文獻3]特開2004- 1 449 1 3號公報 【發明內容】 (發明所欲解決的課題） 爲了將薄膜貼附於基板，必須在使基板配置成平面狀 的狀態下，在基板上方保持薄膜。 薄膜的貼附是藉由壓著滾筒來夾入所被保持的薄膜與 基板，藉由壓著滾筒旋轉來進行貼附，因此薄膜必須吸附 保持及在吸附保持狀態下滑動於吸附構件面。 φ 在配置成平面狀的基板上方因爲吸附構件面滑動於薄 膜而發生微小的磨耗粉。並且，在配置成平面狀的基板上 方從運轉薄膜吸附構件的機構部發生塵埃。 微小的磨耗粉或塵埃會掉落至配置成平面狀的基板表 面，殘留於薄膜與基板間。此情況，因磨耗粉或塵塡及其 周圍產生的氣泡而導致透過的光被遮光或散亂，無法取得 所望的畫像品質，造成畫像品質的低落或良品率降低。 該問題並非是特別限於液晶顯示面板或電漿顯示面板 等的製作工程，貼附各種薄片狀的薄膜時也需要注意。 -6- 1335270 於是，本發明的目'的是在於提供一種在薄膜的貼附中 ，微小的磨耗粉或塵埃不會有掉落至基板表面的情形，良 品率不會降低之薄膜貼附方法及其裝置。 (用以解決課題的手段） 達成上述目的之本發明的薄膜貼附方法的特徴是使相 稱於基板的大小之薄片狀的薄膜在剝離設於薄膜的黏著面 的保護薄膜後貼附於基板時，以保持基板而立起於垂直方 向的基板立起手段、及對應於薄膜的前端部的前端吸附板 、及對應於前端部以外的薄膜的區域的吸附板來吸附保持 與保護薄膜相反側的面，剝離保護薄膜，在對應於薄膜的 前端部的前端吸附板與吸附板來保持薄膜的狀態下使立起 於垂直方向，在對應於垂直保持的基板之薄膜的前端部之 處，配合薄膜的前端部，以設於吸附板的壓著滾輪來加壓 接著該處，在保持壓著滾輪的加壓之狀態下使吸附板移動 至垂直方向下側，而將薄膜貼附於基板。 又，達成上述目的之本發明的薄膜貼附裝置的特徴是 以對應於薄膜的前端部之前端吸附板及對應於前端以外的 薄膜的區域之吸附板來使薄膜立起於垂直方向，將基板予 以所定量傾斜保持於垂直方向且吸附板側，在薄膜前端位 置以推壓壓著滾筒的狀態來使壓著滾筒移動至垂直方向下 側，藉此壓著滾筒是沿著基板的傾斜而移動，在薄膜與基 板的角度從薄膜的前端到終端爲止保持於一定的狀態下藉 由壓著滾筒來將薄膜貼附於基板。 1335270 • [發明的效果] 若根據本發明，則由於是在使基板與薄膜立起成垂直 狀態的狀態下貼附，所以不會有因爲吸附構件面滑動於薄 膜而發生的微小磨耗粉或自運轉薄膜吸附構件的機構部發 • 生的塵埃掉落至薄膜表面或顯示面板表面，發生磨耗粉或 • 塵埃的巻入或塵埃周圍的氣泡之情形，可良品率佳地將薄 φ 膜貼附於基板。 【實施方式】 以下’參照圖1〜圖7來詳細説明本發明之一實施形態 。另外’在全圖面中，對同一物賦予同一引用符號。 圖3是適用本發明來構成之光學薄膜貼附裝置的平面 槪略圖。A是面板投入運送器部，B是光學薄膜貼附部， C是面板排出運送器部。 Φ 將光學薄膜1往顯示面板（基極）2的貼附，是預先將顯 示面板2裝著於面板搬送治具15，使從面板投入運送器部 A移動至光學薄膜貼附部B，以光學薄膜貼附部b來進行 。貼附完了後被送出至面板排出運送器部 圖1是適用本發明來構成之光學薄膜貼附裝置的要部（ 光學薄膜貼附部B)槪略圖。 光學薄膜貼附裝置是將光學薄膜（薄膜）1貼附於顯示 面板（基板）2的畫像顯示面之裝置。大槪由面板保持立起 機構B1'及包含吸附板22及前端吸附板39以及吸附板立 -8 - 1335270 起機構和前端吸附板解^離脫手段與吸附板解除手段的光 學薄膜吸附搬送機構B2、及包含壓著滾筒（roll)及加壓機 構的加壓滾筒機構、及包含抑止加壓滾筒彎曲的推壓滾筒 及加壓機構的推壓滾筒機構等所構成。以下，依序說明各 部的構成。 在此，光學薄膜貼附裝置是顯示面板2的種別或構造 、厚度並無特別加以限定，例如可利用於PDP(電漿顯示 器面板）之顯示畫像的PDP顯示面板或與顯示面板獨立的 濾光片（filter)用單板玻璃基板或LCD(液晶顯示器）的顯示 面板之製造。 首先，說明有關光學薄膜1。光學薄膜1是一倂具有提 升明暗對比度或色再現性，遮斷自面板放出的電磁波或近 紅外線、防止周邊影像映入畫面，防止面板破損等各種的 機能。 如此的光學薄膜1，如圖2所示，是以反射防止薄膜3 、著色薄膜4、電磁波遮斷薄膜5所構成。並且，在電磁波 遮斷薄膜5面塗佈有用以貼附於顯示面板2的黏著材6，更 貼附有用以保護黏著材6的保護薄膜7，具備適當的剛性。 各層薄膜3〜5的厚度、材質、組合等並無特別加以限定。 如此構成的光學薄膜1是在貼附於顯示面板2時剝離保 護薄膜7，使黏著材6露出（參照圖6(1))。然後’將光學薄 膜1與顯示面板2予以正確地對位，使黏著材6接觸於顯示 面板2而貼附。 首先，說明有關面板保持立起機構。 -9 - 1335270 面板保持立起機構、如圖1所示，在基框8上面具備運 送器支撐框9、轉軸10、水平千金頂（lev el jack)l 1、運送 器（convey o r)l 2、汽缸（cylinder) 13。基框8是形成光學薄 膜貼附裝置的基座，呈平板狀。在基框8上，爲了確保運 送器12的高度位置及配置使運送器12立起的汽缸13，而配 有用以確保必要的空間之運送器支撐框9。汽缸1 3是以能 夠連結基框8與運送器12的方式配置。 在運送器支撐框9的上面配有運送器12在立起動作時 成爲旋轉中心的轉軸1 〇及運送器1 2在水平狀態時決定水平 位置的水平千金頂11。藉由此轉軸10及水平千金頂11，可 使運送器12的立起動作位置及水平狀態位置正確地再現。 運送器12是使固定裝著顯示面板2的面板搬送治具15 以面板搬送治具搬送馬達（未圖示）來從圖1的紙面的裏側 移動至前側。然後，以設於運送器12的搬送滾輪（r〇ller)16受 取，移動至所定位置後，可藉由配置於運送器12的四方向 之面板鎖定機構14來固定面板搬送治具15。 面板搬送治具15是在上面側裝著顯示面板2時，以在 顯示面板2的背面側安裝有面板顯示用印刷基板2a等的狀 態下也能夠裝著的方式，在未安裝有面板顯示用印刷基板 2a的位置設有面板支撐構件15a。並且，在面板搬送治具 15，爲了可對應於各種的形狀、大小的顯示面板2，而設 置面板支撐構件15a用的安裝孔，藉此本光學薄膜貼附裝 置的適用自由度會變大。 又，如圖3所示，在使固定裝著顯示面板2的面板搬送 -10- 1335270 治具1 5從圖3的紙面右她位置移動至以運送器1 2所受取的 位置之投入口，具備用以清掃面板表面的面板清潔器（cleaner)17 〇 面板清潔器17是旋轉刷方式，在圖3中刷的旋轉方向 是對於顯示面板2從右往左行進而言形成逆方向。藉此， 可掃掉顯示面板2表面的塵埃，以連接至面板清潔器的集 塵機來吸引除去。 在此所使用的旋轉刷，由於摩擦顯示面板2表面，因 此藉由使用導電性的材質者，可防止顯示面板2帶電。面 板清潔器17並非特別限於旋轉刷方式，可考量顯示面板2 表面的塵埃大小及附著狀態來選擇任意的方式。例如可採 用黏著滾筒方式或超音波乾洗方式。 接著’說明有關光學薄膜吸附搬送機構。 光學薄膜吸附搬送機構，如圖i所示，配置於上述面 板保持立起機構的左側。 光學薄膜吸附搬送機構，如圖丨所示，在基框8上面具 備上面框18、昇降導桿（guide)19、昇降板20、滾珠螺桿 (Ball Screw)21、吸附板22、吸附板移動框23。昇降導桿 19是設置4處’藉由基框8及上面框18來支撐，可使昇降板 20保持於水平。 昇降板20爲平板狀，安裝有被基框8及上面框18所支 撐的滾珠螺桿21的滾珠螺桿螺帽24。在旋轉驅動伺服馬達 26下，經由齒輪箱25來旋轉滾珠螺桿21，使昇降板20可沿 著昇降導桿19來移動於上下方向，令移動後的停止位置能 1335270 夠正確地再現。 在昇降板20設有被設於圖1的左右方向的直線導桿27 ，吸附板移動框23可藉由使設於昇降板20的汽缸46動作來 移動於圖1的左右方向。 在吸附板移動框23經由轉軸28設置吸附板22。並且’ 在吸附板22設有使光學薄膜1推壓於顯示面板2而貼附的加 壓滾筒機構29及推壓滾筒機構30。另外’有關加壓滾筒機 構29及推壓滾筒機構30會往後敘述。 而且，在吸附板移動框23是將汽缸31設置成可自由轉 動。此汽缸31的軸端是可轉動地連接至吸附板22。藉由使 汽缸31動作，吸附板22可以轉軸28爲中心來立起於垂直方 向。 利用圖4來說明將光學薄膜1吸附、固定至吸附板22的 方法。 在吸附板22以能夠貫通吸附板22的方式列設複數個吸 附孔32。此吸附孔32的列是在光學濾光片1的寬度方向分 割成複數的吸附區域33，在各區域連接有吸引配管34。在 該吸引配管34分別設有開閉閥35。出自開閉閥35的吸引配 管是彙整成1個連接至光學濾光片固定用增壓器（bio wer)3 6 。藉由旋轉驅動該光學濾光片固定用增壓器36來對設於各 區域的吸附孔32供給負壓，而吸附保持薄膜。 吸附板22是藉由選擇對應於貼合用的光學薄膜1的大 小而使用的吸附區域，可防止來自吸附孔32的洩漏，適用 於複數的光學濾光片大小。並且，光學薄膜吸附固定用增 -12- 1335270 壓器36設有變換器（inverter)37，可藉由控制轉數來任意 變更吸附區域33的吸引力増減。藉由如此的構成，可在吸 附保持光學薄膜1的狀態下剝離保護薄膜（圖示於圖2)時使 高真空吸引的吸引力作用，而使光學薄膜1不會自吸附板 2 2拿起。並且，在將光學薄膜1貼附於顯示面板2的動作時 是使低真空吸引的吸引力作用於光學薄膜1，藉此可在將 光學薄膜1保持於吸附板22的狀態下移動吸附板22。 在圖1所示的吸附板22，於光學薄膜1的貼附前端（薄 膜的一邊前端部）側經由轉軸3 8設有前端吸附板3 9。前端 吸附板39設有與吸附板22同樣的吸附保持機構。並且，當 前端吸附板39吸附保持被載置於吸附板22上的光學薄膜1 時，是被定位於與吸附板22形成面一致的位置，藉由吸引 來吸附保持光學薄膜1的前端部側。另外，光學薄膜1的前 端部以外的區域是藉由吸附板22利用吸引來吸附保持。 又，如後述，在被貼附於所被吸附保持的光學薄膜1 之保護薄膜剝離後，以加壓滾筒機構29來將光學薄膜1的 前端貼附於顯示面板2。此時，爲了確保加壓滾筒機構29 的推壓空間，前端吸附板39的吸附保持會被解除。前端吸 附板39的吸附解除是藉由關閉來自圖4所示的光學薄膜吸 附固定用增壓器36的吸引配管34的途中所設置的開閉閥35 ，停止負壓的供給而解除》然後，可藉由汽缸（未圖示）以 轉軸38爲中心來旋轉退避而自光學薄膜1離脫。以該轉軸 及汽缸等來構成前端吸附板解除離脫手段。 另外，在前端吸附板39設有對應於光學薄膜大小的定 -13- 1335270 位標記55。在該定位標記位置55載置光學薄膜1，藉此可 在顯示面板2的所望位置貼附光學薄膜1。 藉由圖5(a)來說明加壓滾筒機構29及推壓滾筒機構30 〇 加壓滾筒機構29是被安裝於設於吸附板22的基座43， 與吸附板22—起立起移動於垂直方向，以壓著滾筒40、直 線導桿41及汽缸42所構成。 首先，使前端吸附板39藉由汽缸（未圖示）以轉軸38爲 中心來轉動，使自光學薄膜1離脫·退避。 壓著滾筒40可藉由汽缸42的作用，經由直線導桿41在 圖5 (a)中，上下方向移動。壓著滾筒4〇是不具旋轉驅動機 構，在夾入光學薄膜1及顯示面板2後，藉由吸附板22移動 ，壓著滾筒40會被帶動。壓著滾筒40的大小並無限定，可 考慮顯示面板2的強度或光學薄膜1的必要推壓力來設定。 推壓滾筒機構30是被安裝在設於吸附板22的基座43， 與吸附板22—起立起移動於垂直方向，以推壓滾筒44及附 導桿汽缸45所構成。 當顯示面板2的寬度大時或需要高推壓力時，壓著滾 筒40會變長，中央部的彎曲會變大，無法在寬度方向維持 均等的推壓力。於是，爲了抑止該彎曲，如圖5(b)所示， 可在壓著滾筒40與光學薄膜1接觸的狀態下，以推壓滚筒 44作爲支援滾筒來推壓於壓著滾筒40。 壓著滾筒40的表面是以彈性橡膠層所形成，但其材質 並無特別加以限定，可依光學薄膜1來適當選擇。PET薄 -14- 1335270 膜及離模性佳的矽或導電性橡膠爲最適。並且，橡膠硬度 爲了吸收顯示面板2的翹曲，最好是柔軟的硬度。 其次，藉由圖3來説明有關將光學薄膜1貼附於顯示面 板2之上述構成的光學薄膜貼附裝置的運轉準備動作。 首先，爲了將光學薄膜1貼附於顯示面板2，而預先將 顯示面板2裝著於面板搬送治具15，是在面板投入運送器 部A内待機。其次，藉由面板投入按鈕的操作，面板搬 送治具1 5開始移動至光學薄膜貼附部B位置。然後，在光 學薄膜貼附部B的所定位置停止後藉由面板鎖定機構1 4 ( 參照圖1)來定位。此時，顯示面板2是藉由設於光學薄膜 貼附部B的投入側之面板清潔器17來實施面板表面的清潔 〇 其次，在光學薄膜貼附部B使光學薄膜1載於吸附板 22及前端吸附板39。此時，使光學薄膜1的4個角内的2處 正確地對位於設在前端吸附板的定位標記55。然後，藉由 操作吸附板22與前端吸附板39的吸附開始釦來吸附保持光 學濾光片1。 其次，在吸附保持光學薄膜1的狀態下，藉由未圖示 的保護薄膜剝離手段來剝離構成光學薄膜1的保護薄膜7( 在圖2圖示），使黏著材6露出。根據以上完成光學薄膜1貼 附用的運轉準備。 其次’利用圖6來説明有關使用上述構成的光學薄膜 貼附裝置來將光學薄膜1貼附至顯示面板2的貼附方法。 圖6(1)是表示光學薄膜丨及顯示面板2的運轉準備完了 (S ) -15- 1335270 狀態。由此狀態，藉由操作自動運轉起動釦’開始貼附動 作。 爲了將光學薄膜1貼附於顯示面板2，首先在吸附板22 及前端吸附板39吸附光學薄膜1的狀態下，藉由汽缸31以 轉軸28爲中心來使旋轉移動成垂直狀態爲止。 其次，被安裝於面板搬送治具15的顯示面板2是在面 板搬送治具15及運送器12被面板鎖定機構14所固定的狀態 下藉由汽缸13以轉軸10爲中心來使旋轉移動於垂直方向。 顯示面板2會藉由汽缸13及擋件（未圖示）從垂直位置以前 傾方向的所定角度來保持於傾斜的狀態。此時，圖6(2)所 示的光學薄膜1與顯示面板2所成的角度Θ較理想是例如10 •前後。當光學薄膜1與顯示面板2的角度Θ小時，在貼附 光學薄膜1時，壓著滾筒40會在推壓光學薄膜1之前與顯示 面板2接觸，產生氣泡或皺紋。此外，當角度過大時，因 光學薄膜1的剛性而自吸附板22表面離反的力會作用，產 生吸附破壊，造成光學薄膜1與顯示面板2接觸，發生氣泡 或皺紋。 其次，爲了將光學薄膜1對準貼附至顯示面板2的位置 ，而使支撐吸附板22的吸附板22昇降，以光學薄膜1的前 端能夠來到顯示面板2的貼合位置之方式定位。此時，昇 降板20可藉由伺服馬達26及滾珠螺桿21來移動實現良好的 貼附位置精度。並且，對應於複數的尺寸的顯示面板2時 ，可使光學薄膜1的前端位置簡便且正確地對位。 其次，開放前端吸附板39的光學薄膜1的吸附保持， -16 - 1335270 藉由汽缸（未圖示）以轉ΐδ 38爲中心來旋轉移動，使由光學 薄膜1離脫。藉此，確保供以將光學薄膜1貼附於顯示面板 2之壓著滾筒40的推壓空間。 其次，使壓著滾筒40前進移動至光學薄膜1側’使停 止於與吸附板22的吸附面同一面的位置。藉此，與光學薄 膜1的吸附面側形成同一面。並且’使推壓滾筒44前進移 動至壓著滾筒40的背面側，在接觸於壓著滾筒40的位置定 位。藉此，可抑止爲了將光學薄膜1貼附於顯示面板2而推 壓壓著滾筒40時所發生的壓著滾筒的彎曲。並且’可防止 顯示面板與光學薄膜間的氣泡發生。 其次，如圖7(1)所示，使經由直線導桿27來設置於昇 降板20的吸附板移動框23藉由汽缸46來移動至顯示面板2 側。藉此，壓著滾筒40會經由光學薄膜1的前端來推壓於 顯示面板2，將光學薄膜1接著於顯示面板2。 由此狀態，如圖7(2)所示，以伺服馬達26來使滾珠螺 桿21旋轉，藉此使昇降板20下降移動。在使昇降板20下降 移動時，壓著滾筒40是一邊保持將光學薄膜1推壓於顯示 面板2的狀態一邊移動。藉此，光學薄膜1的黏著材6 (參照 圖2)與顯示面板2會密著。然後，戰勝後述的吸附板22之 光學薄膜1的保持機構的吸附力，拉出光學薄膜。藉此’ 一面從吸附板拉出光學薄膜1，一面對顯示面板2完成貼附 〇 一面拉出光學薄膜1 一面對顯示面板2進行貼附時’壓 著滾筒40是保持將光學薄膜1推壓於顯示面板2的狀態。因 -17- 1335270 此，光學薄膜1是沿著論示面板2的傾斜而下降移動。藉此 ，光學薄膜1與顯示面板2的角度Θ是從前端至終端保持同 一角度，所以可進行無因貼附條件的變動產生不一致的良 好貼附。圖7(3)是表示完成將光學薄膜1貼附於顯示面板2 後的狀態。 被拉出光學薄膜1完成下降移動後的吸附板22是回到 水平狀態。然後，使上昇至所定高度位置，回到用以承載 其次的光學薄膜的初期位置。並且，貼附光學薄膜1的顯 示面板2是藉由汽缸13來回到水平狀態。然後，解除面板 鎖定機構14之面板搬送治具15的固定，藉由運送器12來送 出至面板排出運送器部C(參照圖3)，完成一連串的貼附 運轉動作。 在以上一連串的運轉動作所述之供給光學薄膜1至吸 附板22的方法或供給、排出顯示面板2的面板運送器部並 無特別加以限定，亦可對於光學薄膜1的供給使用自動供 給機，對於供給、排出運送器部使用搬送台車。 其次，說明吸附板22之光學薄膜1的保持機構。 如圖8(1)所示，將光學薄膜1的前端貼附於顯示面板2 的狀態時，設於吸附板22的所有吸附孔32的表面是被光學 薄膜1所覆蓋，因此吸附力會作用。 其次，如圖8(2)所示，用以將光學薄膜1貼附於顯示 面板2的吸附板22會下降。藉此，光學薄膜1是密著於顯示 面板2，滑動於吸附板22表面。此時，將連接至光學薄膜1 會移動於顯示面板2側而成開放狀態的吸附孔3 2之配管的 -18- 1335270 開閉閥35關閉。藉此，άΐ防止因來自吸附孔32的空氣洩漏 造成吸附保持剩下的光學薄膜1之吸附孔32的吸附力降低 。開閉閥35的開閉控制時序是依吸附板22的下降量而定。 因爲移動機構採用伺服馬達26及滾珠螺桿21，所以可由高 精度的位置資訊來進行正確的開閉控制。 此外，隨著光學薄膜1往顯示面板2的貼附從前端接近 終端，使吸附力作用於光學薄膜1的吸附孔32的數量會變 少。因此，爲了將吸附保持力保持於一定，可擴大供給至 吸附孔的負壓力而使吸附力依序上昇。亦即，吸附力増減 是利用根據前述伺服馬達26及滾珠螺桿21之吸附板22的位 置資訊，藉由變換器3 7來自動控制光學薄膜吸附固定用增 壓器36的轉數。藉此，使光學薄膜1從前端至終端保持同 一貼附條件，可進行無彎曲或氣泡的貼附。 另外，由於可藉由變換器37來任意選擇光學薄膜1的 吸附保持力，因此可防止光學薄膜1滑動於吸附板22表面 時受傷。又，吸附板的材質雖無特別加以規定，但若在與 光學薄膜1接觸的面實施硬質鍍鉻處理，則可有效防止光 學薄膜1受傷。 根據以上，可取得使光學薄膜1在顯示面板2從前端至 終端無彎曲或氣泡的混入且表面無擦傷等之高品質的貼附 完成品。 【圖式簡單說明】 圖1是:本發明之光學薄膜貼附裝置的腰部槪略圖。 -19- 1335270 圖2是本發明之光學薄膜的側面圖。 圖3是本發明之光學薄膜貼附裝置的平面圖。 圖4是表示本發明之光學薄膜貼附裝置的光學薄膜吸 附板及吸附力發生機構的平面圖。 圖5是表示本發明之光學薄膜加壓滾筒機構的槪略圖 〇 圖6是說明從光學薄膜的貼附工程的前端到後端的貼 附方法的剖面圖。 圖7是表示接續圖6的薄膜的貼附工程。 圖8是說明光學薄膜的貼附工程的光學薄膜保持方法 的剖面圖。 【主要元件符號說明】 1 :光學薄膜 2 :顯示面板 7 ··保護薄膜 1 5 :面板搬送治具 2 2 :吸附板 3 2 :吸附孔 3 9 :前端吸附板 40 :壓著滾筒 44 :推壓滾筒 -20-1335270 IX. EMBODIMENT OF THE INVENTION The present invention relates to a film attaching method and apparatus for attaching a sheet-like film sized to a bonded substrate to a substrate. [Prior Art] In the liquid crystal In the production process of a display panel, a plasma display panel, etc., it is possible to improve the brightness and darkness contrast or color reproducibility, block electromagnetic waves or infrared rays emitted from the panel, prevent peripheral images from being reflected in the screen, and prevent panel damage. A functional film (hereinafter referred to as a film) is attached to the surface of a liquid crystal display panel or a plasma display panel (hereinafter referred to as a substrate) in a state in which two glass sheets are bonded to each other, thereby achieving good image quality. In the case of attaching a film, a film-attaching device in which a sheet-like film having a size corresponding to the bonded substrate is supplied from the upper side of the substrate is used, and the film is attached. Since the film is coated with the adhesive material, the protective film is used to cover the surface of the adhesive material, so that the foreign matter can be prevented from adhering before use, or the adhesive material can be prevented from being deformed, or the films can be overlapped with each other. In such a film, the adhesive protective film is set upward (attached) to the adsorption holding stage, and the adhesive protective film is peeled off before attaching. The adsorption holding stage is reversed and the adhesive of the film is exposed. . In order to bring the attached end closer to the substrate, the film is tilted by pressing with a roll, and the front end is attached, and the substrate is moved in the direction in which the film is pulled out, whereby the film is attached. -5- 1335270 At this time, the film is slid down to the base of the base plate by the pressing roller, and is slid down on the adsorption holding table while being adsorbed and held on the adsorption holding table. Those who show such a technique are described in Patent Documents 1 to 3 below. [Patent Document 1] Japanese Laid-Open Patent Publication No. JP-A No. 2003-276091. [Patent Document 2] JP-A-2004- 1 493 Problem to be Solved In order to attach a film to a substrate, it is necessary to hold the film on the substrate while the substrate is placed in a planar shape. The film is attached by holding the film and the substrate held by the roller, and the film is attached by rotation of the pressure roller. Therefore, the film must be adsorbed and held and slid on the surface of the adsorption member in the adsorption holding state. φ A slight abrasion powder is generated on the substrate which is arranged in a planar shape because the surface of the adsorption member slides on the film. Further, dust is generated from the mechanism portion on which the film adsorption member is operated, on the substrate arranged in a planar shape. Tiny abrasion powder or dust falls to the surface of the substrate which is arranged in a planar shape and remains between the film and the substrate. In this case, the light transmitted through the dust or the dust mites and the surrounding air bubbles is blocked or scattered, and the desired image quality cannot be obtained, resulting in a deterioration in the image quality or a decrease in the yield. This problem is not particularly limited to the production of liquid crystal display panels or plasma display panels, and care must be taken when attaching various thin film-like films. -6- 1335270 Therefore, the object of the present invention is to provide a film attaching method in which a small amount of abrasion powder or dust does not fall to the surface of the substrate during the attachment of the film, and the yield is not lowered. Its device. (Means for Solving the Problem) The film attaching method of the present invention which achieves the above object is characterized in that a sheet-like film having a size comparable to a substrate is attached to a substrate after peeling off a protective film provided on an adhesive surface of the film. The substrate raising means standing in the vertical direction while holding the substrate, and the suction plate corresponding to the front end suction plate of the front end portion of the film and the film corresponding to the film other than the front end portion are sucked and held on the opposite side of the protective film. The peeling protective film is erected in a vertical direction in a state in which the front end suction plate and the suction plate correspond to the front end portion of the film to hold the film, and the film is bonded to the front end portion of the film corresponding to the vertically held substrate. The front end portion is pressurized by a pressure roller provided on the suction plate, and the suction plate is moved to the lower side in the vertical direction while the pressure of the pressure roller is maintained, and the film is attached to the substrate. Moreover, the film attaching apparatus of the present invention which achieves the above object is characterized in that the film is raised in the vertical direction by the adsorption plate corresponding to the front end adsorption plate of the front end portion of the film and the film corresponding to the film other than the front end, and the substrate is placed in the vertical direction. The amount of the tilt is maintained in the vertical direction and on the side of the suction plate, and the pressure roller is moved to the lower side in the vertical direction at the position of the front end of the film by pressing the roller, whereby the roller is moved along the inclination of the substrate. The film is attached to the substrate by pressing the roller at a constant angle of the film from the substrate from the front end to the end of the film. 1335270. [Effects of the Invention] According to the present invention, since the substrate is attached to the film in a state in which it is perpendicular to the film, there is no minute abrasion powder or self-sliding due to the sliding of the surface of the adsorption member on the film. When the mechanism of the film adsorption member is moved, the dust is dropped on the surface of the film or the surface of the display panel, and abrasion of powder or dust or dust bubbles around the dust occurs, and the thin φ film can be attached with good yield. On the substrate. [Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figs. 1 to 7 . In addition, in the entire drawing, the same reference symbol is given to the same object. Fig. 3 is a schematic plan view showing an optical film attaching apparatus to which the present invention is applied. A is a panel input conveyor portion, B is an optical film attachment portion, and C is a panel discharge carrier portion. Φ Attaching the optical film 1 to the display panel (base) 2, the display panel 2 is attached to the panel transport jig 15 in advance, and the panel is transported from the panel to the transport unit A to the optical film attaching portion B. The optical film attaching portion b is carried out. After the attachment is completed, it is sent out to the panel discharge conveyor portion. Fig. 1 is a schematic view of the main portion (optical film attachment portion B) of the optical film attachment device to which the present invention is applied. The optical film attaching device is a device that attaches an optical film (film) 1 to an image display surface of a display panel (substrate) 2. The optical film adsorption transport mechanism of the large cymbal by the panel holding upright mechanism B1' and the adsorption plate 22 and the front end adsorption plate 39 and the adsorption plate vertical -8 - 1335270 mechanism and the front end adsorption plate disengagement means and the adsorption plate release means B2, a pressure roller mechanism including a pressure roller and a pressurizing mechanism, and a pressing roller mechanism including a pressing roller that suppresses bending of the pressure roller and a pressurizing mechanism. Hereinafter, the configuration of each unit will be described in order. Here, the optical film attaching device is a type or structure of the display panel 2, and the thickness thereof is not particularly limited. For example, a PDP display panel that can be used for displaying a portrait of a PDP (plasma display panel) or a filter independent of the display panel The filter is manufactured using a single-panel glass substrate or a display panel of an LCD (liquid crystal display). First, the optical film 1 will be described. The optical film 1 has various functions such as enhancing the contrast of light and darkness or color reproducibility, blocking electromagnetic waves or near-infrared rays emitted from the panel, preventing surrounding images from being reflected on the screen, and preventing damage to the panel. As shown in FIG. 2, the optical film 1 is composed of an antireflection film 3, a colored film 4, and an electromagnetic wave shielding film 5. Further, the electromagnetic wave shielding film 5 is coated with an adhesive 6 for attaching to the display panel 2, and a protective film 7 for protecting the adhesive 6 is attached, and has appropriate rigidity. The thickness, material, combination, and the like of the respective film layers 3 to 5 are not particularly limited. In the optical film 1 configured as described above, the protective film 7 is peeled off when attached to the display panel 2, and the adhesive 6 is exposed (see Fig. 6 (1)). Then, the optical film 1 and the display panel 2 are properly aligned, and the adhesive 6 is attached to the display panel 2 to be attached. First, explain the panel holding mechanism. -9 - 1335270 The panel holding upright mechanism, as shown in Fig. 1, is provided with a carrier support frame 9, a rotating shaft 10, a lev el jack l 1 , a conveyor or a l 2 on the base frame 8 , cylinder (cylinder) 13. The base frame 8 is a base on which an optical film attaching device is formed, and has a flat shape. In the base frame 8, a carrier support frame 9 for securing a necessary space is provided in order to secure the height position of the transporter 12 and the cylinder 13 for arranging the transporter 12. The cylinder 13 is disposed in such a manner as to be able to connect the base frame 8 and the carrier 12. On the upper surface of the carrier support frame 9, a rotating shaft 1 which is a center of rotation of the carrier 12 during the standing operation and a horizontal crown 11 which determines the horizontal position when the carrier 12 is in a horizontal state are disposed. By the rotation shaft 10 and the horizontal gold dome 11, the vertical movement position and the horizontal state position of the conveyor 12 can be accurately reproduced. The transporter 12 moves the panel transport jig 15 to which the display panel 2 is fixed to the front side from the back side of the paper surface of Fig. 1 by a panel transport jig transport motor (not shown). Then, it is taken up by the transport roller 16 provided on the carrier 12, and after moving to a predetermined position, the panel transport mechanism 15 can be fixed by the panel lock mechanism 14 disposed in the four directions of the transporter 12. When the display panel 2 is mounted on the upper side, the panel transport jig 15 can be mounted in a state in which the panel display printed circuit board 2a or the like is mounted on the back side of the display panel 2, and the panel display is not mounted. A panel supporting member 15a is provided at a position of the printed substrate 2a. Further, in the panel transport jig 15, the mounting hole for the panel supporting member 15a is provided so as to be compatible with the display panel 2 of various shapes and sizes, whereby the degree of freedom of application of the optical film attaching device is increased. Further, as shown in FIG. 3, the panel transporting the display panel 2 is fixed, and the fixture 1 5 is moved from the position on the right side of the paper of FIG. 3 to the position of the position received by the transporter 12, A panel cleaner 17 for cleaning the surface of the panel is provided. The panel cleaner 17 is a rotating brush mode. In FIG. 3, the direction of rotation of the brush is a reverse direction for the display panel 2 to travel from right to left. Thereby, the dust on the surface of the display panel 2 can be swept away to be connected to the dust collector of the panel cleaner to be sucked and removed. Since the rotating brush used here rubs the surface of the display panel 2, it is possible to prevent the display panel 2 from being charged by using a conductive material. The panel cleaner 17 is not particularly limited to the rotary brush method, and any method can be selected in consideration of the size of the dust on the surface of the display panel 2 and the state of adhesion. For example, an adhesive roller method or an ultrasonic dry cleaning method can be used. Next, the optical film adsorption transport mechanism will be described. The optical film adsorption transport mechanism is disposed on the left side of the above-described panel holding and standing mechanism as shown in Fig. i. As shown in FIG. 2, the optical film adsorption transport mechanism includes an upper frame 18, a lift guide 19, a lift plate 20, a ball screw 21, an adsorption plate 22, and a suction plate moving frame on the base frame 8. twenty three. The lifting guides 19 are provided at four places by the base frame 8 and the upper frame 18 to hold the lifting plate 20 horizontal. The lift plate 20 has a flat plate shape, and a ball screw nut 24 of the ball screw 21 supported by the base frame 8 and the upper frame 18 is attached. Under the rotary drive servo motor 26, the ball screw 21 is rotated via the gear case 25, so that the lift plate 20 can be moved in the vertical direction along the lift guide 19, so that the stopped position after the movement can be correctly reproduced 1335270. The lift plate 20 is provided with a linear guide 27 provided in the left-right direction of Fig. 1, and the suction plate moving frame 23 is movable in the left-right direction of Fig. 1 by operating the cylinder 46 provided on the lift plate 20. The adsorption plate 22 is disposed on the adsorption plate moving frame 23 via the rotating shaft 28. Further, the suction plate 22 is provided with a pressure roller mechanism 29 and a pressing roller mechanism 30 which are attached to the display panel 2 by pressing the optical film 1. Further, the pressure roller mechanism 29 and the pressing roller mechanism 30 will be described later. Further, in the suction plate moving frame 23, the cylinder 31 is set to be freely rotatable. The shaft end of this cylinder 31 is rotatably coupled to the suction plate 22. By operating the cylinder 31, the suction plate 22 can stand in the vertical direction with the rotation shaft 28 as the center. A method of adsorbing and fixing the optical film 1 to the adsorption plate 22 will be described with reference to Fig. 4 . A plurality of adsorption holes 32 are arranged in the adsorption plate 22 so as to be able to penetrate the adsorption plate 22. The row of the adsorption holes 32 is divided into a plurality of adsorption regions 33 in the width direction of the optical filter 1, and the suction pipes 34 are connected to the respective regions. An opening and closing valve 35 is provided in each of the suction pipes 34. The suction pipes from the opening and closing valve 35 are merged into one to be connected to the optical filter fixing bio 6 6 . The optical filter fixing supercharger 36 is rotationally driven to supply a negative pressure to the adsorption holes 32 provided in the respective regions, thereby adsorbing and holding the film. The adsorption plate 22 is formed by selecting an adsorption region corresponding to the size of the optical film 1 for bonding, and can prevent leakage from the adsorption hole 32, and is suitable for a plurality of optical filter sizes. Further, the optical film adsorption fixing -12-1335270 presser 36 is provided with an inverter 37, and the suction force of the adsorption region 33 can be arbitrarily changed by controlling the number of revolutions. With such a configuration, the suction force of the high vacuum suction can be applied when the protective film (shown in FIG. 2) is peeled off while the optical film 1 is being adsorbed and held, so that the optical film 1 is not picked up from the adsorption plate 2 2 . . Further, when the optical film 1 is attached to the display panel 2, the suction force of the low vacuum suction is applied to the optical film 1, whereby the adsorption sheet 22 can be moved while the optical film 1 is held by the adsorption sheet 22. . In the adsorption plate 22 shown in Fig. 1, a tip end adsorption plate 39 is provided via a rotating shaft 38 on the side of the attachment end of the optical film 1 (the one end portion of the film). The front end suction plate 39 is provided with the same adsorption holding mechanism as the adsorption plate 22. Further, when the current end adsorption plate 39 adsorbs and holds the optical film 1 placed on the adsorption plate 22, it is positioned at a position that coincides with the surface on which the adsorption plate 22 is formed, and the front end side of the optical film 1 is adsorbed and held by suction. . Further, a region other than the front end portion of the optical film 1 is suction-held by suction by the suction plate 22. Further, as will be described later, after the protective film attached to the optical film 1 to be adsorbed and held is peeled off, the tip end of the optical film 1 is attached to the display panel 2 by the pressure roller mechanism 29. At this time, in order to secure the pressing space of the pressure roller mechanism 29, the suction holding of the distal end suction plate 39 is released. The suction release of the front end suction plate 39 is performed by closing the opening and closing valve 35 provided in the middle of the suction pipe 34 of the optical film adsorption fixing supercharger 36 shown in Fig. 4, and stopping the supply of the negative pressure to be released. The cylinder (not shown) is rotated away from the optical film 1 by being retracted around the rotating shaft 38. The front end suction plate is released by means of the rotating shaft, the cylinder, and the like. Further, the front end suction plate 39 is provided with a mark -13 - 1335270 mark 55 corresponding to the size of the optical film. The optical film 1 is placed at the positioning mark position 55, whereby the optical film 1 can be attached to a desired position of the display panel 2. The pressure roller mechanism 29 and the pressing roller mechanism 30 are described with reference to Fig. 5 (a). The pressure roller mechanism 29 is attached to the base 43 provided on the adsorption plate 22, and stands upright from the adsorption plate 22 to be vertically moved. The direction is constituted by the pressure roller 40, the linear guide 41, and the cylinder 42. First, the front end suction plate 39 is rotated about the rotation shaft 38 by a cylinder (not shown) to separate and retract the optical film 1. The pressure roller 40 can be moved in the vertical direction in Fig. 5(a) via the linear guide 41 by the action of the cylinder 42. The pressure roller 4 is a rotary drive mechanism. After the optical film 1 and the display panel 2 are sandwiched, the pressure roller 22 is moved, and the pressure roller 40 is driven. The size of the pressure roller 40 is not limited, and can be set in consideration of the strength of the display panel 2 or the necessary pressing force of the optical film 1. The pressing roller mechanism 30 is attached to the base 43 provided on the suction plate 22, and is erected in the vertical direction from the suction plate 22 to press the drum 44 and the guide rod cylinder 45. When the width of the display panel 2 is large or when a high pressing force is required, the pressure roller 40 becomes long, and the bending of the center portion becomes large, and it is impossible to maintain an equal pressing force in the width direction. Then, in order to suppress the bending, as shown in Fig. 5 (b), the pressing roller 44 can be pressed against the pressure roller 40 with the pressing roller 44 as a supporting roller in a state where the pressure roller 40 is in contact with the optical film 1. The surface of the pressure roller 40 is formed of an elastic rubber layer, but the material thereof is not particularly limited, and may be appropriately selected depending on the optical film 1. PET Thin -14- 1335270 Membrane and release mold or conductive rubber is the most suitable. Further, the rubber hardness is preferably a soft hardness in order to absorb the warpage of the display panel 2. Next, an operation preparation operation of the optical film attaching device having the above configuration in which the optical film 1 is attached to the display panel 2 will be described with reference to Fig. 3 . First, in order to attach the optical film 1 to the display panel 2, the display panel 2 is attached to the panel transport jig 15 in advance, and is placed in the panel loading and transporting unit A. Next, by the operation of the panel input button, the panel transport jig 15 starts moving to the position of the optical film attaching portion B. Then, after the predetermined position of the optical film attaching portion B is stopped, the panel locking mechanism 14 (refer to Fig. 1) is positioned. At this time, the display panel 2 is cleaned by the panel cleaner 17 provided on the input side of the optical film attaching portion B, and the optical film 1 is placed on the adsorption plate 22 at the optical film attaching portion B. And the front end adsorption plate 39. At this time, two of the four corners of the optical film 1 are correctly positioned on the positioning mark 55 provided on the distal end suction plate. Then, the optical filter 1 is adsorbed and held by operating the adsorption plate 22 and the adsorption start of the front end adsorption plate 39. Then, in the state in which the optical film 1 is adsorbed and held, the protective film 7 (shown in Fig. 2) constituting the optical film 1 is peeled off by a protective film peeling means (not shown) to expose the adhesive 6. According to the above, the operation preparation for attaching the optical film 1 is completed. Next, a method of attaching the optical film 1 to the display panel 2 by using the optical film attaching device having the above configuration will be described with reference to Fig. 6 . Fig. 6 (1) shows the state in which the optical film 丨 and the display panel 2 are ready for operation (S ) -15 - 1335270. In this state, the attaching action is started by operating the automatic start buckle. In order to attach the optical film 1 to the display panel 2, first, in a state where the adsorption film 22 and the tip adsorption plate 39 adsorb the optical film 1, the cylinder 31 is rotated about the rotation axis 28 to the vertical state. Then, the display panel 2 attached to the panel transport jig 15 is rotated by the cylinder 13 around the rotating shaft 10 in a state where the panel transport jig 15 and the transporter 12 are fixed by the panel lock mechanism 14 direction. The display panel 2 is held in an inclined state by a predetermined angle from the vertical position to the forward direction of the cylinder 13 and the stopper (not shown). At this time, the angle Θ formed by the optical film 1 and the display panel 2 shown in Fig. 6 (2) is preferably 10 Å. When the angle between the optical film 1 and the display panel 2 is small, when the optical film 1 is attached, the pressure roller 40 comes into contact with the display panel 2 before the optical film 1 is pushed, and bubbles or wrinkles are generated. Further, when the angle is too large, a force which is opposed to the surface of the adsorption plate 22 due to the rigidity of the optical film 1 acts to cause adsorption and breakage, causing the optical film 1 to come into contact with the display panel 2, and bubbles or wrinkles occur. Next, in order to align the optical film 1 to the position of the display panel 2, the suction plate 22 supporting the adsorption plate 22 is lifted and lowered, and the front end of the optical film 1 can be positioned to come to the bonding position of the display panel 2. At this time, the lifting plate 20 can be moved by the servo motor 26 and the ball screw 21 to achieve good attachment positional accuracy. Further, when the display panel 2 of a plurality of sizes is used, the position of the front end of the optical film 1 can be easily and accurately aligned. Next, the optical film 1 of the front end suction plate 39 is opened and held, and -16 - 1335270 is rotationally moved around the turn δ 38 by a cylinder (not shown) to be separated from the optical film 1. Thereby, the pressing space for attaching the optical film 1 to the pressure roller 40 of the display panel 2 is ensured. Then, the pressure roller 40 is moved forward to the side of the optical film 1 to stop at the same position as the adsorption surface of the adsorption plate 22. Thereby, the same surface is formed on the adsorption surface side of the optical film 1. Further, the pressing roller 44 is moved forward to the back side of the pressure roller 40, and is positioned in contact with the pressure roller 40. Thereby, it is possible to suppress the bending of the pressure roller which occurs when the pressure roller 40 is pressed in order to attach the optical film 1 to the display panel 2. And 'can prevent air bubbles from occurring between the display panel and the optical film. Next, as shown in Fig. 7 (1), the suction plate moving frame 23 provided to the elevation plate 20 via the linear guide 27 is moved to the display panel 2 side by the cylinder 46. Thereby, the pressure roller 40 is pressed against the display panel 2 via the front end of the optical film 1, and the optical film 1 is attached to the display panel 2. In this state, as shown in Fig. 7 (2), the servo screw 26 rotates the ball screw 21, whereby the lift plate 20 is moved downward. When the elevating plate 20 is moved downward, the pressure roller 40 moves while holding the optical film 1 against the display panel 2. Thereby, the adhesive material 6 (refer to Fig. 2) of the optical film 1 is adhered to the display panel 2. Then, the optical film is pulled out by the adsorption force of the holding mechanism of the optical film 1 of the adsorption plate 22 to be described later. Thereby, the optical film 1 is pulled out from the adsorption plate, and the optical film 1 is pulled out while the display panel 2 is attached. When the display panel 2 is attached, the pressing roller 40 holds the optical film. 1 is pressed against the state of the display panel 2. As a result of -17-1335270, the optical film 1 is moved downward along the inclination of the panel 2 of the invention. Thereby, the angle Θ between the optical film 1 and the display panel 2 is maintained at the same angle from the front end to the terminal end, so that it is possible to perform an inconsistent good attachment without variation in the attachment conditions. Fig. 7 (3) shows a state in which the optical film 1 is attached to the display panel 2. The suction plate 22 which has been pulled out of the optical film 1 to complete the downward movement is returned to the horizontal state. Then, it is raised to a predetermined height position and returned to the initial position for carrying the second optical film. Further, the display panel 2 to which the optical film 1 is attached is returned to the horizontal state by the cylinder 13. Then, the panel transport jig 15 of the panel lock mechanism 14 is released and fixed by the transporter 12 to the panel discharge transporter unit C (see Fig. 3) to complete a series of attach operation operations. The method of supplying the optical film 1 to the adsorption plate 22 or the panel carrier portion for supplying and discharging the display panel 2 described in the above-described series of operation operations is not particularly limited, and an automatic supply machine may be used for the supply of the optical film 1. The transport trolley is used for the supply and discharge conveyor sections. Next, the holding mechanism of the optical film 1 of the adsorption plate 22 will be described. As shown in Fig. 8 (1), when the tip end of the optical film 1 is attached to the display panel 2, the surface of all the adsorption holes 32 provided in the adsorption plate 22 is covered by the optical film 1, so that the adsorption force acts. . Next, as shown in Fig. 8 (2), the adsorption plate 22 for attaching the optical film 1 to the display panel 2 is lowered. Thereby, the optical film 1 is adhered to the display panel 2 and slid to the surface of the adsorption plate 22. At this time, the -18-1335270 on-off valve 35 connected to the pipe of the adsorption hole 3 2 in which the optical film 1 is moved to the display panel 2 side is closed. Thereby, the adsorption force of the adsorption holes 32 of the optical film 1 remaining and adsorbed by the leakage of the air from the adsorption holes 32 is prevented from being lowered. The opening and closing control timing of the opening and closing valve 35 is determined by the amount of drop of the suction plate 22. Since the moving mechanism employs the servo motor 26 and the ball screw 21, accurate opening and closing control can be performed by high-accuracy position information. Further, as the attachment of the optical film 1 to the display panel 2 approaches the terminal from the front end, the number of adsorption holes 32 for which the adsorption force acts on the optical film 1 becomes small. Therefore, in order to keep the adsorption holding force constant, the negative pressure supplied to the adsorption holes can be increased to increase the adsorption force in order. That is, the suction force reduction is performed by the position information of the adsorption plate 22 of the servo motor 26 and the ball screw 21, and the number of revolutions of the optical film adsorption fixing pressure accumulator 36 is automatically controlled by the inverter 37. Thereby, the optical film 1 is kept in the same attachment condition from the front end to the end, and the attachment without bending or air bubbles can be performed. Further, since the adsorption holding force of the optical film 1 can be arbitrarily selected by the inverter 37, it is possible to prevent the optical film 1 from being injured when it slides on the surface of the adsorption plate 22. Further, the material of the adsorption plate is not particularly limited. However, if the surface of the adsorption film is hard chrome-plated, the optical film 1 can be effectively prevented from being injured. According to the above, it is possible to obtain a high-quality attached product in which the optical film 1 is free from bending or air bubbles from the front end to the end of the display panel 2, and the surface is free from scratches. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a waist portion of an optical film attaching device of the present invention. -19- 1335270 Fig. 2 is a side view of the optical film of the present invention. Figure 3 is a plan view of the optical film attaching device of the present invention. Fig. 4 is a plan view showing an optical film absorbing sheet and an adsorption force generating mechanism of the optical film sticking device of the present invention. Fig. 5 is a schematic view showing the optical film pressurizing roller mechanism of the present invention. Fig. 6 is a cross-sectional view showing a method of attaching from the front end to the rear end of the attaching process of the optical film. Fig. 7 is a view showing the attachment process of the film of Fig. 6; Fig. 8 is a cross-sectional view showing a method of holding an optical film for attaching an optical film. [Explanation of main component symbols] 1 : Optical film 2 : Display panel 7 · Protective film 1 5 : Panel transfer jig 2 2 : Adsorption plate 3 2 : Adsorption hole 3 9 : Front end suction plate 40 : Clamping roller 44 : Push Press roller-20-