200946312 九、發明說明： 【發明所屬之技術領域】 本發明是關於中華民國97年3月31日第〇97111724號發明 專利申請案所述光學媒技術之系列專利申請案，主要是揭 露捲對捲製程之光學膜片生產設備及生產方法。 【先前技術】 現有的光學膜片製程’主要有下列缺點：⑴卷對卷製 ❹ 程的塗布機構無法視需要移動調整；(2)光學膜片胚料為單 片形式，每次均以人工餵料或按片餵料，製程較費時； (3)UV膠的塗膠量的精確度不易精密控制於良好範圍内； ⑷塵印器只能固定而無法移動；亦即，壓印成形的過程 中，因壓印輥輪是固定於生產設備上，無法針對壓印的瑕 疵或壓印器的瑕疵適當調整壓印品質；（5)塗膠寬度無法 視需要調整控制，造成生產不便。 本發明即是著眼於前述及其他缺點，提供一種製造流程 ❹ 快速，且具有調整製程彈性之光學膜片生產設備及生產方 法。 【發明内容】 根據以上所述，本發明提供一種一種光學膜片生產方 法’用以連續生產一光學膜片F，大致上包括： (a) k供一光學膜片胚料S並使該光學膜片胚料沿一 機器方向Μ前進； (b) 清潔自光學膜片胚料卷100捲出之光學膜片胚料 S ； 130209.doc 200946312 (C)以一張力控制器調整光學膜片胚料8之張力； (d)將該光學膜片胚料S塗上一膠； (6)藉一塗布機構200使該膠均勻分布、及/或調整該膠 之厚度於一特定厚度； (f) 藉由一壓印系統300將一壓印花紋滾動壓印至來自 該塗布機構200之該光學膜片胚料s上； (g) 以一UV固化系統將離開壓印系統3〇〇之光學膜片胚 ❿ 料8之口乂膠固化以獲得光學膜片ρ ; (h) 以一張力控制器調整光學膜片F之捲收張力； (i) 將該光學膜片F捲收成一光學膜片卷5〇〇。 本發明亦包括關於前述生產方法之生產設備。本發明之 進一步特徵，將可藉由下列實施例說明而進一步瞭解。 【實施方式】 圖1揭露根據本發明之光學膜片生產設備丨之一種最佳實 施例，其可沿一機器方向M(製程方向）將一光學膜片胚料s Ο 製造成一光學膜片F成品；較佳的是，光學膜片胚料S可由 一光學膜片胚料卷100連續供應，並於製成光學膜片F成品 後捲收成一成品卷500，以達連續生產之高產量目的。光 學膜片生產設備1大致上包括： (1) 一選擇性設置之清潔裝置（未示於圖），用以清潔自 光學膜片胚料卷100捲出之光學膜片胚料s ; (2) —選擇性設置之張力控制器（未示於圖）用以調整光 學膜片胚料S之張力以利後續製程； (3) —塗布機構2〇〇 ,用以將一膠（本發明以uv膠為例） 130209.doc -6 · 200946312 塗布於來自光學膜片胚料卷100之光學膜片胚料上； (4) 一壓印系統3 〇〇，其藉滚動壓印將一壓印花紋轉印 至來自該塗布機構200之光學膜片胚料S上；及 (5) —選擇性設置之uv@化系統，將離開壓印系統3〇〇 之光學膜片胚料S之UV膠固化以獲得光學膜片F。壓印 系統300與光學膜片F之成品卷500之間可再設一張力控 制器（未示於圖），用以調整光學臈片F之捲收張力。 一供膠機構160用以對自光學膜片胚料卷100捲出之光學 膜片胚料s提供—膠（通常為11¥膠），其可如圖丨所示與塗布 機構200耦合以在供膠時同時藉塗布機構200控制塗膠厚 度亦了 °又置於塗膠機構200之前（即圖1中光學臈片胚料 卷100與塗膠機構200間之位置）。供膠機構160之細節將於 後文詳述。 塗布機構200用以將供膠機構16〇提供之膠/uv膠均勻塗 布，並可進一步調節膠/UV膠於一特定厚度。塗布機構200 ❿ 大致上包括.一第一輥輪21〇及一第二輥輪220 ,並使上膠 後之光學膜片胚料s通過兩者之間。第一輥輪21〇具有一第 一表面212,第二輥輪22〇具有一第二表面222,第一輥輪 210及第二輥輪220較佳其中之一以一精密驅動器230驅 動可調整塗膠厚度。根據一較佳實施例（參圖〇，第一棍 輪210與供膠機構16〇轉合，於供膠機構⑽出谬後即將塗 有膠/uv膠之光學膜片胚料s帶入第一轉輪績第二報輪 220之間之一塗膠通道。 根據另一較佳實施例，供膠機構 胚料卷100 160可於塗膠機構2〇〇之前（即目】中光學膜片 I30209.doc 200946312 與塗膠機構200間之位置），於供膠機構16〇出膠後，將塗 有膠/ UV膠之光學膜片胚料S帶入第一輥輪210與第二輥輪 220之間之塗膠通道。該膠膠通道之寬度可藉由移動第一 輥輪210或第二輥輪220調整，較佳是以精密驅動器23〇操 作。根據以上較佳實施例，本發明可精密控制塗布膠量在 ±〇.lg/min以内，生產成品塗膠厚度於士1μπι以内。 壓印系統300包括一輥輪式之壓印器31〇，該壓印器31〇 ❹ 較佳為金屬材質，其一表面3 12設有具凹凸結構之壓印花 紋可進行滾動壓印。根據一較佳實施例，壓印器31〇與一 相對之擠壓輥輪316配合，使光學膜片胚料s通過壓印器 31〇與擠壓輥輪316之間之一壓印通道。當光學膜片胚料s 在行經壓印通道滾動壓印後，光學臈片胚料8上即形成與 壓印器310上壓印花紋之凹凸結構互補之光學結構，而成 為具增亮結構之光學膜片有關壓印器31〇進行滾動壓印 之相關細節，敘述如申請人之中華民國第〇97111724號發 〇 明專利申請案（尤參其壓印系統100之内容）。 為使所製得之光學膜片具有較佳光學特性、生產良率、 壓pD口質等製程上之優點，壓印器31〇可具有可移動特徵 以允許適時調整其與光學膜片胚料8間之相對位置；此一 可移動特徵亦可針對壓印器的瑕疵調整壓印品質。如圖3a 所不之較佳實施例，壓印器31〇可與一軌道件32〇耦合以 允許該壓印器310沿著執道件32〇移動，調整其與光學膜片 胚料S間之距離。軌道件320之延伸方向與機器間之 角度，可視需要選擇。圖3八之實施例僅顯示軌道件320之 130209.doc 200946312 延伸方向垂直於機器方向M，亦即兩者間呈9〇。；但應可 瞭解，其他角度，如30。、45。等，均是根據本發明揭露所 易於思及。圖3B揭露可移動特徵之另一較佳實施例，其中 壓印器310可與一樞轉件340耦合，柩轉件34〇一端耦合於 壓印器3 1 0，另一端結合於一樞點342，如此可允許壓印器 310相對於樞點342樞轉移動，調整其與光學膜片胚料3間 之距離。其他運用上述可移動特徵之概念所衍生之類似機 φ 構應可根據本發明而輕易思及。 UV固化系統3 50(如UV燈）可在壓印器3 1 〇將壓印花紋轉 印至光學膜片胚料S後，將光學膜片胚料§上之UV膠固 化’以製成光學膜片F。 圖4A至4C顯示一供膠機構160之較佳實施例，其中供膠 機構160包括一具有一預定寬度之出膠口 ι72之供膠裝置 170(通常以泵驅動）、及一塗布寬度控制機構4〇〇。塗布寬 度控制機構400較佳包括一 /一對覆蓋裝置41〇，用以用以 〇 對齊該光學膜片胚料s之一/一對縱向邊緣之外緣，並可視 該一 /一對縱向邊緣之外緣之位置進行移動調整，以覆蓋 出膠口 172超出光學膜片胚料s之一/一對縱向邊緣之外緣 之部分。亦即’當光學膜片胚料S之寬度小於出膠口 172之 寬度時’可手動、或以驅動器42〇調整覆蓋裝置41〇,使該 覆蓋裝置410遮蔽出膠口 172超出該光學膜片胚料S之一/一 對縱向邊緣之外緣之部分。此可防止UV膠在出膠口 172過 寬的情形下持續湧出的浪費及生產的不良。 根據以上内容，光學膜片胚料S在包括塗布機構200、壓 130209.doc 200946312 印系統300的製程中，製成光 Μ <ΛΛ 、各 成品後捲收成一成品 卷500’ Μ達連續生產之高產量目的。 有說明用以闊釋本發明之較佳實施例，而非用以 :制本發明1何依照本發明之結構、特徵…及申請 圍所施行之其他簡單變化的等效實_，都應由本 案之申请專利範圍所涵蓋。 【圖式簡單說明】200946312 IX. INSTRUCTIONS: [Technical field of invention] The present invention relates to a series of patent applications for optical media technology described in the invention patent application No. 97111724 of the Republic of China on March 31, 1997, which mainly discloses a roll-to-roll Process optical film production equipment and production methods. [Prior Art] The existing optical film process 'has mainly has the following disadvantages: (1) the coating mechanism of the roll-to-roll process cannot be adjusted as needed; (2) the optical film blank is in the form of a single piece, each time being artificial Feeding or feeding by sheet, the process is more time-consuming; (3) The accuracy of the amount of glue applied to the UV glue is not easily controlled within a good range; (4) The dust-printing device can only be fixed and cannot move; that is, the stamping is formed. In the process, because the embossing roller is fixed on the production equipment, the embossing quality cannot be properly adjusted for the embossed enamel or the embossing of the embossing device; (5) the sizing width cannot be adjusted and controlled as needed, resulting in inconvenient production. SUMMARY OF THE INVENTION The present invention is directed to the foregoing and other disadvantages, and provides an optical film production apparatus and a production method which are fast in manufacturing process and have flexibility in adjusting process. SUMMARY OF THE INVENTION In view of the above, the present invention provides an optical film production method for continuously producing an optical film F, which substantially comprises: (a) k for an optical film blank S and the optical The film blank is advanced in a machine direction; (b) the optical film blank S which is cleaned from the optical film blank roll 100; 130209.doc 200946312 (C) Adjusting the optical film embryo with a force controller (d) coating the optical film blank S with a glue; (6) uniformly distributing the glue by a coating mechanism 200, and/or adjusting the thickness of the glue to a specific thickness; Rolling an embossed pattern onto the optical film blank s from the coating mechanism 200 by an embossing system 300; (g) leaving the embossing system 3 以 optical with a UV curing system The epoxy resin of the membrane blank 8 is cured to obtain an optical film ρ; (h) the tension of the optical film F is adjusted by a force controller; (i) the optical film F is wound into an optical film. Volume 5 〇〇. The present invention also includes a production apparatus relating to the aforementioned production method. Further features of the present invention will become apparent from the following description of the embodiments. [Embodiment] FIG. 1 discloses a preferred embodiment of an optical film producing apparatus according to the present invention, which can manufacture an optical film blank s Ο into an optical film F in a machine direction M (process direction). The finished product; preferably, the optical film blank S can be continuously supplied from an optical film blank roll 100, and is rolled into a finished roll 500 after being finished into the finished optical film F, so as to achieve high throughput for continuous production. . The optical film producing apparatus 1 generally comprises: (1) an optional cleaning device (not shown) for cleaning the optical film blank s taken out from the optical film blank roll 100; (2) - an optional tension controller (not shown) for adjusting the tension of the optical film blank S for subsequent processing; (3) - coating mechanism 2 〇〇 for applying a glue (the present invention For example, uv glue) 130209.doc -6 · 200946312 is applied to the optical film blank from the optical film blank roll 100; (4) an embossing system 3 〇〇, which is pressed by rolling embossing The printing pattern is transferred onto the optical film blank S from the coating mechanism 200; and (5) - the selectively set uv@化 system, which will leave the UV of the optical film blank S of the imprinting system 3 The glue is cured to obtain an optical film F. A force controller (not shown) may be provided between the embossing system 300 and the finished roll 500 of the optical film F for adjusting the take-up tension of the optical cymbal F. A glue supply mechanism 160 is used to provide a glue (usually 11¥ glue) to the optical film blank s which is taken up from the optical film blank roll 100, which can be coupled to the coating mechanism 200 as shown in FIG. At the same time, the coating mechanism 200 is used to control the thickness of the glue at the same time, and is placed in front of the glue applying mechanism 200 (i.e., the position between the optical sheet blank roll 100 and the glue applying mechanism 200 in Fig. 1). Details of the glue supply mechanism 160 will be described later. The coating mechanism 200 is used to evenly coat the glue/uv glue provided by the glue supply mechanism 16 and further adjust the glue/UV glue to a specific thickness. The coating mechanism 200 大致 substantially includes a first roller 21 〇 and a second roller 220, and passes the sized optical film blank s between the two. The first roller 21 has a first surface 212, and the second roller 22 has a second surface 222. One of the first roller 210 and the second roller 220 is preferably driven by a precision driver 230. Glue thickness. According to a preferred embodiment (refer to the figure, the first roller wheel 210 and the glue supply mechanism 16 are turned together, and after the glue supply mechanism (10) exits, the optical film blank s which is coated with glue/uv glue is brought into the first According to another preferred embodiment, the glue supply mechanism blank roll 160 160 can be used before the glue application mechanism 2 (ie, the optical film) I30209.doc 200946312 and the glue coating mechanism 200), after the glue supply mechanism 16 pulls out the glue, the glue/UV glue coated optical film blank S is brought into the first roller 210 and the second roller The glue passage between the 220. The width of the glue passage can be adjusted by moving the first roller 210 or the second roller 220, preferably by a precision driver 23〇. According to the above preferred embodiment, the present invention The amount of coating glue can be precisely controlled within ±〇.lg/min, and the thickness of the finished product can be produced within ±1μπι. The imprinting system 300 includes a roller type stamper 31〇, which is preferably In the case of a metal material, a surface 3 12 is provided with an embossed pattern having a concave-convex structure for rolling imprinting. According to a preferred embodiment, The printer 31 is coupled with a counter-rolling roller 316 such that the optical film blank s passes through one of the embossing channels between the stamp 31 and the squeeze roller 316. When the optical film is s After the embossing of the embossed channel, the optical slab blank 8 forms an optical structure complementary to the embossed structure of the embossed pattern on the stamper 310, and becomes an optical film with a brightening structure.相关For the details of rolling imprinting, the patent application of the applicant's Republic of China No. 97117724 (especially the contents of the imprinting system 100) is described. In order to make the optical film produced better. The optical characteristics, the production yield, the pD quality, and the like, the stamper 31 can have a movable feature to allow timely adjustment of the relative position between the optical film blank 8 and the movable feature; The embossing quality can be adjusted for the embossing of the embossing device. As in the preferred embodiment of Fig. 3a, the embossing device 31 can be coupled to a track member 32 以 to allow the embossing device 310 to follow the traversing member 32. Move to adjust the distance from the optical film blank S. Track member 320 The direction of extension and the angle between the machines can be selected as needed. The embodiment of Fig. 3 shows only 130209.doc 200946312 of the track member 320. The direction of extension is perpendicular to the machine direction M, that is, 9 inches between the two. Other angles, such as 30, 45, etc., are readily contemplated in accordance with the present disclosure. Figure 3B illustrates another preferred embodiment of the movable feature in which the stamp 310 can be coupled to a pivot member 340. The end of the rotating member 34 is coupled to the stamper 310 and the other end is coupled to a pivot point 342. This allows the stamp 310 to be pivotally moved relative to the pivot point 342 to adjust the optical film blank. 3 distances. Other similar mechanisms derived from the concept of the above movable features can be easily considered in accordance with the present invention. The UV curing system 350 (such as a UV lamp) can be used to transfer the embossed pattern to the optical film blank S after the stamper 3 1 ,, and the UV film of the optical film blank is cured to make the optical Diaphragm F. 4A to 4C show a preferred embodiment of a glue supply mechanism 160, wherein the glue supply mechanism 160 includes a glue supply device 170 (usually driven by a pump) having a predetermined width of the glue outlet port 127, and a coating width control mechanism. 4〇〇. The coating width control mechanism 400 preferably includes a/one pair of covering means 41 for aligning one of the optical film blanks s/one pair of longitudinal edges and visualizing the one/pair of longitudinal edges The position of the outer edge is adjusted to cover the portion of the glue opening 172 beyond the outer edge of one of the optical film blanks s/pair of longitudinal edges. That is, when the width of the optical film blank S is smaller than the width of the glue outlet 172, the cover device 41 can be manually adjusted or the driver 42 is adjusted so that the cover device 410 shields the glue port 172 from the optical film. One of the billets S / a portion of the outer edge of a pair of longitudinal edges. This prevents the waste of the UV glue from continuing to flow and the production failure in the case where the glue outlet 172 is too wide. According to the above, the optical film blank S is made into a film in the process including the coating mechanism 200 and the pressure 130209.doc 200946312 printing system 300, and the finished product is rolled into a finished product roll 500'. High production goals. The preferred embodiment for the broad disclosure of the present invention is not intended to be used to: the invention, the structure, features of the invention, and other equivalent variations of the application of the invention, The scope of the patent application in this case is covered. [Simple description of the map]
圖1顯示本發明之光學膜片生產設備丨之—實施例示意 圖。 圖2顯示本發明之塗布機構2〇〇之一實施例示意圖 圖3Α及3Β顯示壓印器310之可移動特徵之示意圖。 圖4Α至4C顯示供膠機構之一實施例之示意圖。 【主要元件符號說明】 1 光學膜片生產設備 100 光學膜片胚料卷 200 塗布機構 210 第一輥輪 212 第一輥輪210之第一 表面 220 第二親輪 222 第二輥輪220之第二 表面 230 精密驅動器 300 壓印系統 310 壓印器 312 壓印器之壓印表面 130209.doc •10· 200946312 316 擠壓輥輪 320 執道件 340 樞轉件 342 柩點 350 UV固化系統 160 供膠機構 170 供膠裝置 172 出膠口BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an embodiment of an optical film producing apparatus of the present invention. Figure 2 shows a schematic view of one embodiment of the coating mechanism 2 of the present invention. Figures 3A and 3B show schematic views of the movable features of the stamper 310. 4A to 4C are schematic views showing an embodiment of a glue supply mechanism. [Main component symbol description] 1 Optical film production apparatus 100 Optical film blank roll 200 Coating mechanism 210 First roller 212 First surface 220 of the first roller 210 Second second wheel 222 Second roller 220 Two Surfaces 230 Precision Driver 300 Imprinting System 310 Imprinter 312 Embossing Surface of Imprinter 130209.doc •10· 200946312 316 Squeeze Roller 320 Obstruction 340 Pivot 342 350 350 UV Curing System 160 Glue mechanism 170 glue supply device 172 glue outlet
400 塗布寬度控制機構 410 覆蓋裝置 420 驅動器 500 成品卷 F 光學膜片之成品 Μ 機器方向 S 光學膜片胚料400 Coating width control mechanism 410 Covering device 420 Driver 500 Finished product F Finish of optical film Μ Machine direction S Optical film blank
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