TW202026131A

TW202026131A - Device for processing optical film and method for manufacturing optical film

Info

Publication number: TW202026131A
Application number: TW107147604A
Authority: TW
Inventors: 林首宏; 林炎逸
Original assignee: 住華科技股份有限公司
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-16

Abstract

An optical film processing device is provided. The device includes a drying oven and a pressing structure. The drying oven includes an inlet. The pressing structure is disposed in the drying oven and adjacent to the inlet, wherein the pressing structure includes a lifting component and a pressing roller mounted on the lifting component. The distance between the pressing roll and the inlet is in a range from 300 mm to 1100 mm. A method for manufacturing an optical film is also provided.

Description

光學膜處理裝置及光學膜的製造方法Optical film processing device and optical film manufacturing method

本揭露是關於一種光學膜處理裝置，且特別是關於包含壓制機構的光學膜處理裝置以及使用所述裝置的光學膜的製造方法。The present disclosure relates to an optical film processing device, and more particularly to an optical film processing device including a pressing mechanism and a manufacturing method of an optical film using the device.

光學膜廣泛應用於生活中的各種物件，例如，燈具的防眩光材料、車窗隔熱材料、數位相機的濾波材料、平面顯示器等。平面顯示器為近年來的重點發展產業之一，其中，液晶顯示器的產值又佔了平面顯示器產業的絕大部分。Optical films are widely used in various objects in life, such as anti-glare materials for lamps, heat insulation materials for car windows, filter materials for digital cameras, flat-panel displays, etc. Flat panel displays have been one of the key development industries in recent years. Among them, the output value of liquid crystal displays has accounted for most of the flat panel display industry.

應用於液晶顯示器的光學膜種類繁多，隨著液晶顯示器頻繁地應用於各種精密電子產品，例如，手機、穿戴式裝置、電腦等，產業界對於光學膜品質的要求也日益提高。There are many types of optical films applied to liquid crystal displays. As liquid crystal displays are frequently applied to various precision electronic products, such as mobile phones, wearable devices, computers, etc., the industry's requirements for the quality of optical films are also increasing.

而光學膜的生產製程為影響光學膜品質的根本，因此，提升光學膜的生產製程良率實為改善光學膜品質的重要課題之一。The production process of the optical film is the fundamental factor affecting the quality of the optical film. Therefore, improving the yield of the production process of the optical film is indeed one of the important issues for improving the quality of the optical film.

根據本揭露一些實施例，提供一種光學膜處理裝置，包括：一乾燥爐，包括一入口；以及一壓制結構，設置於該乾燥爐內且鄰近於該入口，其中該壓制結構包括一升降組件及安裝於該升降組件上的一壓制輥；其中該壓制輥與該入口之間的距離的範圍為300mm至1100mm。According to some embodiments of the present disclosure, there is provided an optical film processing apparatus, including: a drying furnace including an entrance; and a pressing structure disposed in the drying furnace and adjacent to the entrance, wherein the pressing structure includes a lifting assembly and A pressing roller installed on the lifting assembly; wherein the distance between the pressing roller and the entrance ranges from 300mm to 1100mm.

根據本揭露一些實施例，提供一種光學膜的製造方法，包括以下步驟：(a)提供一光學膜處理裝置，包括：一乾燥爐，包括一入口；以及一壓制結構，設置於該乾燥爐內且鄰近於該入口，其中該壓制結構包括一升降組件及安裝於該升降組件上的一壓制輥；(b)將經貼合的一光學膜層疊體沿一第一方向傳送至該乾燥爐中，以乾燥經貼合的該光學膜層疊體；以及(c)藉由該升降組件調整該壓制輥的位置，使該光學膜層疊體的傳送方向從該第一方向偏移至一第二方向。According to some embodiments of the present disclosure, there is provided a method of manufacturing an optical film, including the following steps: (a) providing an optical film processing device, including: a drying oven including an inlet; and a pressing structure arranged in the drying oven And adjacent to the entrance, wherein the pressing structure includes a lifting assembly and a pressing roller installed on the lifting assembly; (b) transporting a laminated optical film laminate to the drying furnace along a first direction , To dry the laminated optical film laminate; and (c) adjust the position of the pressing roller by the lift assembly to shift the transport direction of the optical film laminate from the first direction to a second direction .

為讓本揭露之特徵、或優點能更明顯易懂，下文特舉出較佳實施例，並配合所附圖式，作詳細說明如下。In order to make the features or advantages of the present disclosure more comprehensible, preferred embodiments are listed below in conjunction with the accompanying drawings, which are described in detail as follows.

以下針對本揭露實施例的光學膜處理裝置以及使用所述裝置所進行的光學膜的製造方法作詳細說明。應了解的是，以下之敘述提供許多不同的實施例或例子，用以實施本揭露一些實施例之不同樣態。以下所述特定的元件及排列方式僅為簡單清楚描述本揭露一些實施例。當然，這些僅用以舉例而非本揭露之限定。此外，在不同實施例中可能使用類似及/或對應的標號標示類似及/或對應的元件，以清楚描述本揭露。然而，這些類似及/或對應的標號的使用僅為了簡單清楚地敘述本揭露一些實施例，不代表所討論之不同實施例及/或結構之間具有任何關連性。The optical film processing device of the embodiment of the disclosure and the manufacturing method of the optical film using the device will be described in detail below. It should be understood that the following description provides many different embodiments or examples for implementing different aspects of some embodiments of the present disclosure. The specific elements and arrangements described below are only a simple and clear description of some embodiments of the disclosure. Of course, these are only examples and not the limitation of this disclosure. In addition, similar and/or corresponding reference numerals may be used in different embodiments to indicate similar and/or corresponding elements to clearly describe the present disclosure. However, the use of these similar and/or corresponding reference numerals is only used to briefly and clearly describe some embodiments of the present disclosure, and does not represent any connection between the different embodiments and/or structures discussed.

應理解的是，圖式之元件或裝置可以所屬技術領域具有通常知識者所熟知的各種形式存在。此外實施例中可能使用相對性用語，例如「較低」或「底部」或「較高」或「頂部」，以描述圖式的一個元件對於另一元件的相對關係。可理解的是，如果將圖式的裝置翻轉使其上下顛倒，則所敘述在「較低」側的元件將會成為在「較高」側的元件。本揭露實施例可配合圖式一併理解，本揭露之圖式亦被視為揭露說明之一部分。應理解的是，本揭露之圖式並未按照比例繪製，事實上，可能任意的放大或縮小元件的尺寸以便清楚表現出本揭露的特徵。It should be understood that the elements or devices of the drawings may exist in various forms well known to those with ordinary knowledge in the technical field. In addition, relative terms, such as “lower” or “bottom” or “higher” or “top” may be used in the embodiments to describe the relative relationship between one element of the drawing and another element. It is understandable that if the device in the drawing is turned upside down, the elements described on the "lower" side will become the elements on the "higher" side. The embodiments of the disclosure can be understood together with the drawings, and the drawings of the disclosure are also regarded as part of the disclosure description. It should be understood that the drawings of the present disclosure are not drawn to scale. In fact, the size of the elements may be arbitrarily enlarged or reduced in order to clearly show the features of the present disclosure.

此外，圖式之元件或裝置可以所屬技術領域具有通常知識者所熟知的各種形式存在。此外，應理解的是，雖然在此可使用用語「第一」、「第二」、「第三」等來敘述各種元件、組件、或部分，這些元件、組件或部分不應被這些用語限定。這些用語僅是用來區別不同的元件、組件、區域、層或部分。因此，以下討論的一第一元件、組件、區域、層或部分可在不偏離本揭露之教示的情況下被稱為一第二元件、組件、區域、層或部分。In addition, the elements or devices of the figures can exist in various forms well known to those with ordinary knowledge in the technical field. In addition, it should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, or parts, these elements, components or parts should not be limited by these terms . These terms are only used to distinguish different elements, components, regions, layers or parts. Therefore, a first element, component, region, layer or section discussed below may be referred to as a second element, component, region, layer or section without departing from the teachings of the present disclosure.

於文中，「約」、「大約」、「實質上」之用語通常表示在一給定值或範圍的20%內，較佳是10%內，更佳是5%內，或3%之內，或2%之內，或1%之內，或0.5%之內。在此給定的數量為大約的數量，亦即在沒有特定說明「約」、「大約」、「實質上」的情況下，仍可隱含「約」、「大約」、「實質上」之含義。In the text, the terms "about", "approximately" and "substantially" usually mean within 20% of a given value or range, preferably within 10%, more preferably within 5%, or within 3% , Or within 2%, or within 1%, or within 0.5%. The quantity given here is an approximate quantity, that is, without specifying "about", "approximately", "substantially", it can still imply "about", "approximately", and "substantially". meaning.

再者，於文中，「實質上垂直」可代表相交的兩線所構成的夾角大致上為90度，可能代表為90±10度的情況。在一些實施例中，可代表夾角為90±5度的情況。Furthermore, in the text, "substantially perpendicular" can mean that the angle formed by the two intersecting lines is roughly 90 degrees, and it may mean that it is 90±10 degrees. In some embodiments, it may represent a situation where the included angle is 90±5 degrees.

在本揭露一些實施例中，關於接合、連接之用語例如「連接」、「互連」等，除非特別定義，否則可指兩個結構係直接接觸，或者亦可指兩個結構並非直接接觸，其中有其它結構設於此兩個結構之間。且此關於接合、連接之用語亦可包括兩個結構都可移動，或者兩個結構都固定之情況。In some embodiments of the present disclosure, terms such as "connection", "interconnection", etc. regarding bonding and connection, unless specifically defined, can mean that two structures are in direct contact, or that two structures are not in direct contact. There are other structures located between these two structures. Moreover, the terms of joining and connecting can also include the case where both structures are movable or both structures are fixed.

除非另外定義，在此使用的全部用語(包含技術及科學用語)具有與本揭露所屬技術領域的技術人員通常理解的相同涵義。能理解的是，這些用語例如在通常使用的字典中定義用語，應被解讀成具有與相關技術及本揭露的背景或上下文一致的意思，而不應以一理想化或過度正式的方式解讀，除非在本揭露實施例有特別定義。Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. It is understandable that these terms, such as those defined in commonly used dictionaries, should be interpreted as having meaning consistent with the relevant technology and the background or context of this disclosure, and should not be interpreted in an idealized or excessively formal way. Unless there is a special definition in the embodiment of the present disclosure.

本揭露實施例提供一種光學膜處理裝置，其包含設置於乾燥爐內的壓制結構，壓制結構可均勻地施加應力於進入乾燥爐內的光學膜，降低光學膜受熱產生收縮造成膜面皺摺的情形。The embodiment of the disclosure provides an optical film processing device, which includes a pressing structure arranged in a drying furnace, the pressing structure can uniformly apply stress to the optical film entering the drying furnace, and reduce the shrinkage of the optical film caused by the heat of the film surface. situation.

第1A圖顯示根據本揭露一些實施例中，光學膜處理裝置10的結構示意圖。應理解的是，根據一些實施例，可添加額外特徵於光學膜處理裝置10。此外，亦可同時參照第1B圖，第1B圖顯示第1A圖中的區域E的局部放大圖。FIG. 1A shows a schematic structural diagram of an optical film processing device 10 in some embodiments according to the present disclosure. It should be understood that, according to some embodiments, additional features may be added to the optical film processing device 10. In addition, FIG. 1B may also be referred to at the same time, and FIG. 1B shows a partial enlarged view of area E in FIG. 1A.

如第1A圖所示，光學膜處理裝置10包含乾燥爐100以及設置於乾燥爐100內的壓制結構200。乾燥爐100可包含入口102及出口104，供光學膜進出。壓制結構200鄰近於乾燥爐100的入口102，壓制結構200可包含升降組件202及安裝於升降組件202上的壓制輥204。可藉由操作升降組件202以控制壓制輥204的位置，升降組件202可控制壓制輥204於垂直方向上之移動。升降組件202的詳細結構將於第1C圖說明。As shown in FIG. 1A, the optical film processing apparatus 10 includes a drying furnace 100 and a pressing structure 200 provided in the drying furnace 100. The drying oven 100 may include an inlet 102 and an outlet 104 for the optical film to enter and exit. The pressing structure 200 is adjacent to the entrance 102 of the drying furnace 100, and the pressing structure 200 may include a lifting assembly 202 and a pressing roller 204 installed on the lifting assembly 202. The position of the pressing roller 204 can be controlled by operating the lifting assembly 202, and the lifting assembly 202 can control the movement of the pressing roller 204 in the vertical direction. The detailed structure of the lifting assembly 202 will be described in FIG. 1C.

承前述，壓制結構200設置在鄰近於入口102的位置，在一些實施例中，壓制輥204與入口102之間的距離D₁ 的範圍為約300mm至約1100mm，例如，為約500mm至約900mm。在一些實施例中，前述距離D₁ 指的是壓制輥204與入口102之間的最短距離。In view of the foregoing, the pressing structure 200 is disposed at a position adjacent to the inlet 102. In some embodiments, the distance D ₁ between the pressing roller 204 and the inlet 102 ranges from about 300 mm to about 1100 mm, for example, from about 500 mm to about 900 mm. . In some embodiments, the aforementioned distance D ₁ refers to the shortest distance between the pressing roller 204 and the inlet 102.

在一些實施例中，乾燥爐100可用於將經貼合處理後的光學膜進行加熱乾燥。在一些實施例中，乾燥爐100可包含熱風式乾燥爐、紅外線式乾燥爐或合併熱風式及紅外線式的乾燥爐，但不限於此。在一些實施例中，乾燥爐100內的溫度的範圍為約40℃至約100℃，例如，為約40℃至約70℃。In some embodiments, the drying oven 100 may be used to heat and dry the optical film after the lamination process. In some embodiments, the drying oven 100 may include a hot air drying oven, an infrared drying oven, or a combined hot air and infrared drying oven, but is not limited thereto. In some embodiments, the temperature in the drying oven 100 ranges from about 40°C to about 100°C, for example, from about 40°C to about 70°C.

在一些實施例中，壓制輥204的材料包含不銹鋼或鈦合金，不銹鋼例如是SUS304、SUS304L、SUS309、SUS309S、SUS310S、SUS311、SUS314、SUS321、SUS345、SUS348、SUS403、SUS410、SUS405、SUS406、SUS410、SUS414、SUS430、SUS330F、SUS431、SUS440A~C、SUS442、SUS443、SUS446、SUS447JI、SUS630、SUS JIS 35、SUS XM 27、SHOMAC30-2、SEA-CURE、HR-8N、SUS 316、SUS 316L、SUS 317、SUS 317L、SUS 316J1、SUS 316J2、CARPENTER 20或MONIT，但不限於此。In some embodiments, the material of the pressing roller 204 includes stainless steel or titanium alloy, such as SUS304, SUS304L, SUS309, SUS309S, SUS310S, SUS311, SUS314, SUS321, SUS345, SUS348, SUS403, SUS410, SUS405, SUS406, SUS410, SUS414, SUS430, SUS330F, SUS431, SUS440A~C, SUS442, SUS443, SUS446, SUS447JI, SUS630, SUS JIS 35, SUS XM 27, SHOMAC30-2, SEA-CURE, HR-8N, SUS 316, SUS 316L, SUS 317 , SUS 317L, SUS 316J1, SUS 316J2, CARPENTER 20 or MONIT, but not limited to this.

在一些實施例中，壓制輥204的輪面可經鏡面拋光處理或鍍有一鍍膜層，其中該鍍膜層材料選自金屬鉻，或其他非金屬材料，例如陶瓷、鐵弗龍、矽膠等。在一些實施例中，壓制輥204的洛氏硬度(Hrc)的範圍為約50905060204的表面粗糙度(Ra)為約0.01µm至約0.1µm之間，或為約0.02µm至約0.06µm之間。表面粗糙度的選擇以不刮傷光學膜面為佳，倘若表面粗糙度超過0.1µm之間則可能在壓制光學膜時對膜面造成刮傷。In some embodiments, the wheel surface of the pressing roller 204 may be mirror-polished or coated with a coating layer, wherein the coating layer material is selected from metallic chromium, or other non-metallic materials, such as ceramics, Teflon, and silicone. In some embodiments, the Rockwell hardness (Hrc) of the pressing roller 204 ranges from about 50905060204, and the surface roughness (Ra) is between about 0.01 µm and about 0.1 µm, or between about 0.02 µm and about 0.06 µm. . It is better to choose the surface roughness not to scratch the optical film surface. If the surface roughness exceeds 0.1 µm, the film surface may be scratched when pressing the optical film.

在一些實施例中，如第1B圖所示，壓制輥204的半徑r₁ 的範圍為約100mm至約500mm，例如，約200mm。In some embodiments, as shown in Figure 1B, the radius r ₁ of the pressing roller 204 ranges from about 100 mm to about 500 mm, for example, about 200 mm.

在一些實施例中，光學膜處理裝置10更包含夾持輥(nip roll)302，夾持輥302設置於乾燥爐100的上游。如第1A圖所示，夾持輥302可用以將複數層光學膜400a貼合以形成光學膜層疊體400。在一些實施例中，光學膜處理裝置10所處理的光學膜400a及光學膜層疊體400以捲材形式存在。In some embodiments, the optical film processing apparatus 10 further includes a nip roll 302, and the nip roll 302 is arranged upstream of the drying oven 100. As shown in FIG. 1A, the nip roller 302 can be used to bond a plurality of optical films 400a to form an optical film laminate 400. In some embodiments, the optical film 400a and the optical film laminate 400 processed by the optical film processing device 10 are in the form of a roll.

在一些實施例中，光學膜400a可為一單層或多層膜片，包含對光學之增益、配向、補償、轉向、直交、擴散、保護、防黏、耐刮、抗眩、反射抑制、高折射率等有所助益的膜，例如，可為偏光膜、離型膜、廣視角膜、增亮膜、反射膜、保護膜、具有控制視角補償或雙折射(birefraction)等特性的配向液晶膜、硬塗膜、抗反射膜、防黏膜、擴散膜、防眩膜等各種表面經處理的膜或上述之組合，但不限於此。In some embodiments, the optical film 400a may be a single-layer or multi-layer film, including optical gain, alignment, compensation, steering, orthogonality, diffusion, protection, anti-sticking, scratch resistance, anti-glare, reflection suppression, high Refractive index and other helpful films, for example, can be polarizing film, release film, wide viewing angle film, brightness enhancement film, reflective film, protective film, oriented liquid crystal with characteristics such as controlled viewing angle compensation or birefraction Films, hard-coated films, anti-reflection films, anti-adhesive films, diffusion films, anti-glare films, and other surface-treated films or combinations of the above, but not limited to these.

在一些實施例中，光學膜層疊體400可包含兩層保護層以及夾設於保護層之間的偏光膜。In some embodiments, the optical film laminate 400 may include two protective layers and a polarizing film sandwiched between the protective layers.

在一些實施例中，所述保護膜可為單層或多層之結構，為透明性、機械強度、熱穩定性、水分阻隔性等優良之熱可塑性樹脂。熱可塑性樹脂可包括纖維素樹脂(例如，三醋酸纖維素(triacetate cellulose，TAC)或二醋酸纖維素(diacetate cellulose，DAC))、丙烯酸樹脂(例如，聚甲基丙烯酸甲酯(poly(methyl methacrylate)，PMMA)、聚酯樹脂(例如，聚對苯二甲酸乙二酯(polyethylene terephthalate，PET)或聚萘二甲酸乙二酯)、烯烴樹脂、聚碳酸酯樹脂、環烯烴樹脂、定向拉伸性聚丙烯(oriented-polypropylene，OPP)、聚乙烯(polyethylene，PE)、聚丙烯(polypropylene，PP)、環烯烴聚合物(cyclic olefin polymer，COP)、環烯烴共聚合物(cyclic olefin copolymer，COC)或前述之組合。在一些實施例中，所述保護膜的材料可包含(甲基)丙烯酸系、胺基甲酸酯系、丙烯酸胺基甲酸酯系、環氧系、聚矽氧系等熱硬化性樹脂或紫外線硬化型樹脂。此外，亦可進一步對上述保護膜實行表面處理，例如，抗眩光處理、抗反射處理、硬塗處理、帶電防止處理或抗污處理等。In some embodiments, the protective film can be a single-layer or multi-layer structure, and is a thermoplastic resin with excellent transparency, mechanical strength, thermal stability, and moisture barrier properties. Thermoplastic resins may include cellulose resins (for example, triacetate cellulose (TAC) or diacetate cellulose (DAC)), acrylic resins (for example, poly(methyl methacrylate) ), PMMA), polyester resin (for example, polyethylene terephthalate (PET) or polyethylene naphthalate), olefin resin, polycarbonate resin, cycloolefin resin, directional stretch Oriented-polypropylene (OPP), polyethylene (PE), polypropylene (PP), cyclic olefin polymer (COP), cyclic olefin copolymer (COC) ) Or a combination of the foregoing. In some embodiments, the material of the protective film may include (meth)acrylic, urethane, urethane acrylate, epoxy, or silicone Such as thermosetting resins or ultraviolet-curing resins. In addition, the above-mentioned protective film may be further subjected to surface treatment, for example, anti-glare treatment, anti-reflection treatment, hard coating treatment, anti-static treatment, or anti-fouling treatment.

在一些實施例中，所述偏光膜可由吸附配向之二色性色素之聚乙烯醇(polyvinyl alcohol，PVA)薄膜或由液晶材料摻附具吸收染料分子所形成。聚乙烯醇可藉由皂化聚乙酸乙烯酯而形成。在一些實施例中，聚乙酸乙烯酯可為乙酸乙烯酯之單聚物或乙酸乙烯酯及其它單體之共聚物等。上述其它單體可為不飽和羧酸類、烯烴類、不飽和磺酸類或乙烯基醚類等。在另一些實施例中，聚乙烯醇可為經改質的聚乙烯醇，例如，經醛類改質的聚乙烯甲醛、聚乙烯乙醛或聚乙烯丁醛等。In some embodiments, the polarizing film may be formed by a polyvinyl alcohol (PVA) film that adsorbs aligned dichroic pigments or is formed by liquid crystal materials doped with absorbing dye molecules. Polyvinyl alcohol can be formed by saponifying polyvinyl acetate. In some embodiments, polyvinyl acetate may be a monomer of vinyl acetate or a copolymer of vinyl acetate and other monomers. The above-mentioned other monomers may be unsaturated carboxylic acids, olefins, unsaturated sulfonic acids or vinyl ethers. In other embodiments, the polyvinyl alcohol may be modified polyvinyl alcohol, for example, polyvinyl formaldehyde, polyvinyl acetaldehyde, or polyvinyl butyraldehyde modified by aldehydes.

此外，在一些實施例中，光學膜400a係透過接合劑(未繪示)彼此貼合。舉例而言，如第1A圖所示，位於上方及下方的光學膜400a可分別藉由接合劑附著在位於之間的光學膜400a的兩側表面，接著在傳送至乾燥爐100內前藉由夾持輥302貼合而一體化，形成光學膜層疊體400。在一些實施例中，在第1圖所示的製程前，光學膜400a可先經接合劑塗佈製程處理(未繪示)。In addition, in some embodiments, the optical films 400a are bonded to each other through a bonding agent (not shown). For example, as shown in FIG. 1A, the optical films 400a located above and below can be attached to both sides of the optical film 400a located in between by a bonding agent, and then transferred to the drying oven 100 by The nip roll 302 is bonded and integrated to form the optical film laminate 400. In some embodiments, before the process shown in FIG. 1, the optical film 400a may be processed by a bonding agent coating process (not shown).

在一些實施例中，可藉由夾持輥302同時壓合多層光學膜400a，例如，如圖中所示，三層同時貼合。在另一些實施例中，可藉由多個夾持輥302依序壓合多層光學膜400a，例如，可藉由一個夾持輥302先貼合其中兩層，接著再由另一夾持輥302將經貼合的兩層與另一層壓合。In some embodiments, the multi-layer optical film 400a can be simultaneously laminated by the nip roller 302, for example, as shown in the figure, three layers are laminated simultaneously. In other embodiments, a plurality of nip rollers 302 may be used to sequentially laminate the multilayer optical film 400a. For example, two of the layers may be laminated by one nip roller 302, and then another nip roller 302 The two laminated layers are laminated with the other.

在一些實施例中，接合劑塗佈製程可採用輥塗佈裝置、凹版塗佈裝置、噴塗裝置或前述之組合，但不限於此。在一些實施例中，使用的接合劑可包含水系接合劑(亦即，接合劑成分可溶解於水或可分散於水)、熱硬化性接合劑或前述之組合。舉例而言，水系接合劑的成分可包含聚乙烯醇系樹脂或胺甲酸乙酯樹脂等作為主成分。再者，為了提高接合性，水系接合劑可進一步包含異氰酸酯系化合物或環氧化合物等。In some embodiments, the bonding agent coating process may use a roll coating device, a gravure coating device, a spraying device, or a combination of the foregoing, but is not limited thereto. In some embodiments, the bonding agent used may include an aqueous bonding agent (that is, the bonding agent component can be dissolved or dispersed in water), a thermosetting bonding agent, or a combination of the foregoing. For example, the component of the water-based bonding agent may include polyvinyl alcohol-based resin, urethane resin, or the like as a main component. Furthermore, in order to improve bonding properties, the water-based bonding agent may further contain an isocyanate-based compound, an epoxy compound, or the like.

詳細而言，在使用聚乙烯醇系樹脂作為接合劑的主成分的例子中，除部分皂化的聚乙烯醇、完全皂化的聚乙烯醇外，亦可使用經改質的聚乙烯醇系樹脂，例如，羧基改質的聚乙烯醇、乙醯乙醯基改質的聚乙烯醇、羥甲基改質的聚乙烯醇或胺基改質的聚乙烯醇等。In detail, in the example of using polyvinyl alcohol-based resin as the main component of the bonding agent, in addition to partially saponified polyvinyl alcohol and fully saponified polyvinyl alcohol, modified polyvinyl alcohol-based resins may also be used. For example, carboxyl-modified polyvinyl alcohol, acetyl-acetyl-modified polyvinyl alcohol, methylol-modified polyvinyl alcohol, or amine-modified polyvinyl alcohol, etc.

承前述，在光學膜400a經貼合形成光學膜層疊體400之後，光學膜層疊體400被傳送至乾燥爐100內，亦即，從室溫環境進入高溫環境，此時光學膜層疊體400的膜面會劇烈收縮。然而，根據一些實施例，可藉由鄰近於入口102的壓制結構200施加應力於光學膜層疊體400，減少光學膜層疊體400收縮或皺摺。詳細而言，在一些實施例中，可藉由升降組件202調整壓制輥204的高度，使壓制輥204施加應力於光學膜層疊體400，例如，下壓光學膜層疊體400的膜面使其平整。In view of the foregoing, after the optical film 400a is bonded to form the optical film laminate 400, the optical film laminate 400 is transported to the drying furnace 100, that is, from the room temperature environment into the high temperature environment, the optical film laminate 400 The membrane surface will shrink violently. However, according to some embodiments, stress can be applied to the optical film laminate 400 by the pressing structure 200 adjacent to the inlet 102 to reduce shrinkage or wrinkles of the optical film laminate 400. In detail, in some embodiments, the height of the pressing roller 204 can be adjusted by the lifting assembly 202, so that the pressing roller 204 applies stress to the optical film laminate 400, for example, pressing down the film surface of the optical film laminate 400 to make it smooth.

應注意的是，若壓制輥204與入口102之間的距離過小(例如，小於300mm)，則光學膜層疊體400可能會產生溢膠，反之，若壓制輥204與入口102之間的距離過大(例如，大於1100mm)，則可能無法及時防止光學膜層疊體400產生皺摺或收縮，且一旦膜面的皺摺或收縮產生，便較難有效恢復原狀。It should be noted that if the distance between the pressing roller 204 and the inlet 102 is too small (for example, less than 300 mm), the optical film laminate 400 may cause glue overflow. On the contrary, if the distance between the pressing roller 204 and the inlet 102 is too large (For example, greater than 1100 mm), the optical film laminate 400 may not be able to prevent wrinkles or shrinkage in time, and once the film surface wrinkles or shrinkage occurs, it is difficult to effectively restore the original shape.

此外，如第1A圖所示，壓制輥204設置於傳送中的光學膜層疊體400的單一側，亦即，壓制輥204與光學膜層疊體400的單一側接觸，施加單一方向的應力於光學膜層疊體400上。例如，在第1A圖所示實施例中，壓制輥204以實質上垂直於光學膜層疊體400的傳送方向之方向(Z方向)施加應力於光學膜層疊體400上。應理解的是，剛貼合完成的光學膜層疊體400中的接合劑可能尚未完全乾燥，使用單側的壓制輥204可避免影響膜的厚度，具體而言，可避免雙側擠壓對膜的厚度造成影響。In addition, as shown in FIG. 1A, the pressing roller 204 is provided on a single side of the optical film laminate 400 during transport, that is, the pressing roller 204 is in contact with a single side of the optical film laminate 400, and a single-directional stress is applied to the optical film. On the film laminate 400. For example, in the embodiment shown in FIG. 1A, the pressing roller 204 applies stress to the optical film laminate 400 in a direction (Z direction) substantially perpendicular to the transport direction of the optical film laminate 400. It should be understood that the bonding agent in the optical film laminate 400 that has just been laminated may not be completely dried. The use of a single-sided pressing roller 204 can avoid affecting the thickness of the film, specifically, avoiding double-sided extrusion to the film The thickness affects.

此外，在一些實施例中，光學膜處理裝置10更包含第一導引輥304，第一導引輥304設置於入口102與壓制輥204之間。在一些實施例中，第一導引輥304與入口102之間的距離D₂ 的範圍為約100mm至約300mm。在一些實施例中，前述距離D₂ 指的是第一導引輥304與入口102之間的最短距離。相較於壓制輥204，第一導引輥304更鄰近入口102。第一導引輥304可用以維持光學膜層疊體400進入乾燥爐100的位置，避免光學膜層疊體400與入口102(爐口)接觸。在一些實施例中，第一導引輥304與夾持輥302實質上位於同一水平面，亦即，水平高度實質上相同。In addition, in some embodiments, the optical film processing apparatus 10 further includes a first guide roller 304, and the first guide roller 304 is disposed between the entrance 102 and the pressing roller 204. In some embodiments, the distance D ₂ between the first guide roller 304 and the inlet 102 ranges from about 100 mm to about 300 mm. In some embodiments, the aforementioned distance D ₂ refers to the shortest distance between the first guide roller 304 and the entrance 102. Compared with the pressing roller 204, the first guiding roller 304 is closer to the entrance 102. The first guide roller 304 can be used to maintain the position where the optical film laminate 400 enters the drying furnace 100 to prevent the optical film laminate 400 from contacting the inlet 102 (furnace opening). In some embodiments, the first guide roller 304 and the clamping roller 302 are substantially located on the same horizontal plane, that is, the horizontal height is substantially the same.

如第1B圖所示，在一些實施例中，第一導引輥304的半徑r₂ 的範圍為約100mm至約200mm。在一些實施例中，壓制輥204與第一導引輥304的半徑比(r₁ :r₂ )為約1:1至約3:1，或為約1.5:1至約2.5:1，例如，約2:1。As shown in Fig. 1B, in some embodiments, the radius r ₂ of the first guide roller 304 ranges from about 100 mm to about 200 mm. In some embodiments, the radius ratio (r ₁ :r ₂ ) of the pressing roller 204 to the first guide roller 304 is about 1:1 to about 3:1, or about 1.5:1 to about 2.5:1, for example , About 2:1.

在一些實施例中，光學膜處理裝置10更包含第二導引輥306，第二導引輥306設置於壓制輥204的下游。壓制輥204設置於第一導引輥304與第二導引輥306之間。在一些實施例中，第一導引輥304與第二導引輥306實質上位於同一水平面，亦即，水平高度實質上相同。具體而言，在一些實施例中，第一導引輥304與乾燥爐100之間具有距離D₃ 。在一些實施例中，前述距離D₃ 指的是第一導引輥304的底表面與乾燥爐100的底表面100b之間的距離。再者，在一些實施例中，第二導引輥306與乾燥爐100之間具有距離D₄ 。在一些實施例中，前述距離D₄ 指的是第二導引輥306的底表面與乾燥爐100的底表面100b之間的距離。在一些實施例中，距離D₃ 與距離D₄ 實質上相同。In some embodiments, the optical film processing apparatus 10 further includes a second guide roller 306, and the second guide roller 306 is disposed downstream of the pressing roller 204. The pressing roller 204 is disposed between the first guide roller 304 and the second guide roller 306. In some embodiments, the first guide roller 304 and the second guide roller 306 are substantially on the same horizontal plane, that is, the level is substantially the same. Specifically, in some embodiments, there is a distance D ₃ between the first guide roller 304 and the drying oven 100. In some embodiments, the aforementioned distance D ₃ refers to the distance between the bottom surface of the first guide roller 304 and the bottom surface 100 b of the drying oven 100. Furthermore, in some embodiments, there is a distance D ₄ between the second guide roller 306 and the drying oven 100. In some embodiments, the aforementioned distance D ₄ refers to the distance between the bottom surface of the second guide roller 306 and the bottom surface 100 b of the drying oven 100. In some embodiments, the distance D ₃ and the distance D _{4 are} substantially the same.

此外，在一些實施例中，可藉由控制升降組件202，調整壓制輥204的高度，使壓制輥204的底表面低於第一導引輥304的頂表面以及第二導引輥306的頂表面，以產生下壓應力於光學膜層疊體400。具體而言，在一些實施例中，壓制輥204與乾燥爐100之間具有距離D₅ 。在一些實施例中，前述距離D₅ 指的是壓制輥204的底表面與乾燥爐100的底表面100b之間的距離。在一些實施例中，可藉由調整壓制輥204的高度，使距離D₅ 大於距離D₃ 或距離D₄ 。In addition, in some embodiments, the height of the pressing roller 204 can be adjusted by controlling the lifting assembly 202 so that the bottom surface of the pressing roller 204 is lower than the top surface of the first guide roller 304 and the top surface of the second guide roller 306. On the surface, a compressive stress is generated on the optical film laminate 400. Specifically, in some embodiments, there is a distance D ₅ between the pressing roller 204 and the drying oven 100. In some embodiments, the aforementioned distance D ₅ refers to the distance between the bottom surface of the pressing roller 204 and the bottom surface 100 _b of the drying oven 100. In some embodiments, the height of the pressing roller 204 can be adjusted so that the distance D _{5 is} greater than the distance D ₃ or the distance D ₄ .

在一些實施例中，光學膜處理裝置10更包含第三導引輥308，第三導引輥308設置於第二導引輥306的下游。第二導引輥306及第三導引輥308可控制光學膜層疊體400的傳送路徑。再者，第一導引輥304、第二導引輥306及第三導引輥308可為從動輥，隨著捲取光學膜層疊體400的捲取輥(未繪示)的驅動而從動。In some embodiments, the optical film processing apparatus 10 further includes a third guide roller 308, and the third guide roller 308 is disposed downstream of the second guide roller 306. The second guide roller 306 and the third guide roller 308 can control the transport path of the optical film laminate 400. Furthermore, the first guide roller 304, the second guide roller 306, and the third guide roller 308 may be driven rollers, which are driven by the take-up roller (not shown) that takes up the optical film laminate 400 Driven.

在一些實施例中，前述第一導引輥304、第二導引輥306及第三導引輥308的材料可與壓制輥204的材料相同，亦即，包含不銹鋼。在另一些實施例中，第一導引輥304、第二導引輥306及第三導引輥308的材料可包含塑膠、橡膠或前述之組合。In some embodiments, the material of the aforementioned first guide roller 304, the second guide roller 306, and the third guide roller 308 may be the same as the material of the pressing roller 204, that is, include stainless steel. In other embodiments, the materials of the first guide roller 304, the second guide roller 306, and the third guide roller 308 may include plastic, rubber, or a combination of the foregoing.

接著，請繼續參照第1A及1B圖，根據一些實施例，本揭露提供一種光學膜的製造方法，所述方法包含提供前述光學膜處理裝置10，並藉由操作光學膜處理裝置10製造光學膜層疊體400。以下將搭配光學膜處理裝置10的作動方式說明光學膜的製造方法。在一些實施例中，可於光學膜的製造方法進行前、進行中及/或進行後提供額外的操作步驟。在不同的實施例中，所述的一些階段(或步驟)可以視情況被刪除或取代，或者視狀況互換步驟的順序。根據本揭露一些實施例，光學膜的製造方法可採用卷對卷製程進行，但本揭露內容不以此為限。Next, please continue to refer to FIGS. 1A and 1B. According to some embodiments, the present disclosure provides a method for manufacturing an optical film. The method includes providing the aforementioned optical film processing device 10, and manufacturing the optical film by operating the optical film processing device 10 Stacked body 400. The method of manufacturing the optical film will be described below in conjunction with the operating mode of the optical film processing device 10. In some embodiments, additional operation steps may be provided before, during, and/or after the manufacturing method of the optical film. In different embodiments, some of the described stages (or steps) may be deleted or replaced as appropriate, or the order of the steps may be interchanged as appropriate. According to some embodiments of the present disclosure, the manufacturing method of the optical film can be performed by a roll-to-roll process, but the content of the present disclosure is not limited thereto.

如第1A圖所示，首先，將經貼合的光學膜層疊體400沿第一方向A₁ 傳送至乾燥爐100中，以乾燥經貼合的光學膜層疊體400。承前述，在一些實施例中，可藉由設置於乾燥爐100上游的夾持輥302，將複數層光學膜400a貼合，以形成光學膜層疊體400。As shown in FIG. 1A, first, the optical film laminate by bonding a first direction 400 A ₁ to a drying oven transfer body 100, bonded to the optical dried film laminate 400. In accordance with the foregoing, in some embodiments, a plurality of layers of optical films 400a may be bonded by a nip roller 302 arranged upstream of the drying furnace 100 to form an optical film laminate 400.

接著，光學膜層疊體400從入口102進入乾燥爐100內，並依序傳送至第一導引輥304、壓制機構200、第二導引輥306及第三導引輥308，最後由出口104離開乾燥爐100。在一些實施例中，可在光學膜的製造方法進行前或進行中，控制壓制機構200以調整壓制輥204的位置。具體而言，可藉由升降組件202控制壓制輥204於垂直方向上之移動。在一些實施例中，所述垂直方向實質上係與乾燥爐100的底表面100b垂直。Then, the optical film laminate 400 enters the drying furnace 100 from the entrance 102, and is sequentially conveyed to the first guide roller 304, the pressing mechanism 200, the second guide roller 306, and the third guide roller 308, and finally from the exit 104 Leave the drying oven 100. In some embodiments, the pressing mechanism 200 may be controlled to adjust the position of the pressing roller 204 before or during the manufacturing method of the optical film. Specifically, the lifting assembly 202 can be used to control the movement of the pressing roller 204 in the vertical direction. In some embodiments, the vertical direction is substantially perpendicular to the bottom surface 100 b of the drying oven 100.

承前述，可藉由升降組件202調整壓制輥204的上升或下降。在一些實施例中，可藉由控制升降組件202調整壓制輥204的位置，使光學膜層疊體400的傳送方向從第一方向A₁ 偏移至第二方向A₂ 。如第1B圖所示，在一些實施例中，第一方向A₁ 與第二方向A₂ 之間的夾角θ₁ 的範圍為約5度至約45度，或為約10度至約30度。In view of the foregoing, the lifting assembly 202 can be used to adjust the rising or falling of the pressing roller 204. In some embodiments, the position of the pressing roller 204 can be adjusted by controlling the lifting assembly 202 to shift the conveying direction of the optical film laminate 400 from the first direction A ₁ to the second direction A ₂ . As shown in Figure 1B, in some embodiments, the included angle θ ₁ between the first direction A ₁ and the second direction A ₂ ranges from about 5 degrees to about 45 degrees, or from about 10 degrees to about 30 degrees. .

在一些實施例中，可藉由控制升降組件202使壓制輥204沿著第三方向A₃ 移動，且第三方向A₃ 實質上與前述第一方向A₁ 垂直。此外，在一些實施例中，設置於壓制輥204下游的第二導引輥306可使光學膜層疊體沿第四方向A₄ 傳送。如第1B圖所示，在一些實施例中，第四方向A₄ 與第二方向A₂ 之間的夾角θ₂ 的範圍為約135度至約175度，或為約125度至約155度，或為約120度至約150度。In some embodiments, the lift assembly 202 may be so controlled by the pressing roller 204 moves along the third direction A _3, A ₃ and the third direction substantially perpendicular to the first direction A _1. Further, in some embodiments, is provided on the second pressing roller 204 downstream of the guide roller 306 allows the optical film laminate along the fourth conveying direction A _4. As shown in Figure 1B, in some embodiments, the included angle θ ₂ between the fourth direction A ₄ and the second direction A ₂ ranges from about 135 degrees to about 175 degrees, or from about 125 degrees to about 155 degrees. , Or about 120 degrees to about 150 degrees.

請參照第1C圖，第1C圖顯示根據本揭露一些實施例中，第1A圖中的區域E的局部立體示意圖。第1C圖顯示壓制機構200與壓制輥204、第一導引輥304及第二導引輥306的詳細結構。如第1C圖所示，壓制機構200包含升降組件202，壓制輥204的兩端部204e分別與升降組件202連接，壓制輥204的兩端部204e可分別固定於升降組件202上。Please refer to FIG. 1C. FIG. 1C shows a partial three-dimensional diagram of the area E in FIG. 1A in some embodiments according to the present disclosure. FIG. 1C shows the detailed structure of the pressing mechanism 200 and the pressing roller 204, the first guide roller 304 and the second guide roller 306. As shown in FIG. 1C, the pressing mechanism 200 includes a lifting assembly 202. The two ends 204e of the pressing roller 204 are respectively connected to the lifting assembly 202, and the two ends 204e of the pressing roller 204 can be respectively fixed on the lifting assembly 202.

在一些實施例中，升降組件202可為手動機械控制組件。在一些實施例中，升降組件202可包含基座202A、升降支架202B及手動轉輪202C。具體而言，可操控手動轉輪202C，使固定於升降支架202B上的壓制輥204上升或下降。承前述，由於壓制機構200鄰近於乾燥爐100的入口102，在乾燥爐100作用的情況中，仍可從入口102處操作手動轉輪202C，調整壓制輥204的位置，且若製程發生異常問題時，亦可立即調整壓制輥204，使其離開膜面。相較於一般製程，通常是在乾燥爐內使用螃蟹夾以減少膜面收縮，其便不具有可即時調整的特性。In some embodiments, the lifting assembly 202 may be a manual mechanical control assembly. In some embodiments, the lifting assembly 202 may include a base 202A, a lifting bracket 202B, and a manual runner 202C. Specifically, the manual runner 202C can be manipulated to raise or lower the pressing roller 204 fixed on the lifting bracket 202B. In view of the foregoing, since the pressing mechanism 200 is adjacent to the entrance 102 of the drying furnace 100, when the drying furnace 100 is in operation, the manual runner 202C can still be operated from the entrance 102 to adjust the position of the pressing roller 204, and if an abnormal problem occurs in the process At this time, the pressing roller 204 can also be adjusted immediately to leave the film surface. Compared with the general manufacturing process, crab clamps are usually used in the drying oven to reduce the shrinkage of the film surface, which does not have the characteristics of instant adjustment.

再者，如第1C圖所示，壓制輥204具有寬度W₁ ，而光學膜層疊體400具有寬度W₂ 。在一些實施例中，寬度W₁ 大於寬度W₂ ，亦即，壓制輥204的寬度大於光學膜層疊體400的幅寬。在一些實施例中，寬度W₂ 約為寬度W₁ 的約60%至約95%，例如，約70%至約90%。在一些實施例中，光學膜層疊體400的邊緣與壓制輥204的端部204e之間會保留一段距離，例如，可保留約5%的寬度W₁ 的距離。Furthermore, as shown in FIG. 1C, the pressing roller 204 has a width W ₁ , and the optical film laminate 400 has a width W ₂ . In some embodiments, the width W _{1 is} greater than the width W ₂ , that is, the width of the pressing roller 204 is greater than the width of the optical film laminate 400. In some embodiments, the width W ₂ is about 60% to about 95% of the width W ₁ , for example, about 70% to about 90%. In some embodiments, the optical film laminate and the pressing edge 400 will remain at a distance between an end portion 204e of the roller 204, e.g., from about 5% to retain the width W ₁ of the.

在一些實施例中，光學膜層疊體400與壓制輥204的一部份表面接觸。在一些實施例中，與光學膜層疊體400接觸的壓制輥204的部分表面佔壓制輥204的總表面積的約5%至約50%，或約10%至約40%。在一些實施例中，壓制輥204的總表面積指的是壓制輥204的圓柱側表面的面積。In some embodiments, the optical film laminate 400 is in contact with a part of the surface of the pressing roller 204. In some embodiments, a portion of the surface of the pressing roller 204 in contact with the optical film laminate 400 accounts for about 5% to about 50%, or about 10% to about 40% of the total surface area of the pressing roller 204. In some embodiments, the total surface area of the pressing roller 204 refers to the area of the cylindrical side surface of the pressing roller 204.

特別地，根據本揭露一些實施例，由於壓制輥204的寬度W₁ 大於光學膜層疊體400的寬度W₂ ，因此，壓制輥204是作用於全部的光學膜層疊體400，相較於只能作用在膜面邊緣處的螃蟹夾，壓制輥204的作用範圍較大，可有效防止光學膜層疊體400受熱產生的收縮與皺摺。In particular, according to some embodiments of the present disclosure, since the width W _{1 of the} pressing roller 204 is greater than the width W _{2 of the} optical film laminate 400, the pressing roller 204 acts on the entire optical film laminate 400, compared to only For the crab clamps acting on the edges of the film surface, the pressing roller 204 has a relatively large range of action, which can effectively prevent the optical film laminate 400 from shrinking and wrinkling due to heat.

此外，使用螃蟹夾亦會造成邊緣處的膜面受損，需於後續製程中將邊料部分裁切掉，造成原料損失。反之，壓制輥204可均勻地施加應力於光學膜層疊體400，不會有邊料耗損的問題。根據一些實施例，相較於使用螃蟹夾的製程，使用前述壓制輥204的製程可減少原料損失180~200M/每捲材，例如約195M/每捲材。In addition, the use of crab clamps will also cause damage to the film surface at the edge, and the edge material needs to be cut off in the subsequent manufacturing process, resulting in loss of raw materials. On the contrary, the pressing roller 204 can uniformly apply stress to the optical film laminate 400 without the problem of edge material loss. According to some embodiments, compared with the process of using crab clamps, the process of using the aforementioned pressing roller 204 can reduce the raw material loss by 180-200M/per roll, for example, about 195M/per roll.

接著，請參照第1B圖，在一些實施例中，可藉由升降組件202調整壓制輥204的位置，使壓制輥204下降，進而將光學膜層疊體400的膜面下壓。在一些實施例中，可調整壓制輥204的位置，使第一導引輥304的頂部切線與壓制輥204的底部切線之間的具有距離D₆ ，亦即，使光學膜層疊體400的膜面下壓距離D₆ 。在一些實施例中，距離D₆ 的範圍可為約5mm至約200mm，例如，為約40mm至約60mm。Next, referring to FIG. 1B, in some embodiments, the position of the pressing roller 204 can be adjusted by the lifting assembly 202, so that the pressing roller 204 is lowered, and then the film surface of the optical film laminate 400 is pressed down. In some embodiments, the position of the pressing roller 204 can be adjusted so that there is a distance D ₆ between the top tangent line of the first guide roller 304 and the bottom tangent line of the pressing roller 204, that is, the film of the optical film laminate 400 The face downward pressure distance D ₆ . In some embodiments, the distance D ₆ may range from about 5 mm to about 200 mm, for example, from about 40 mm to about 60 mm.

相似地，在一些實施例中，可調整壓制輥204的位置，使第二導引輥306的頂部切線與壓制輥204的底部切線之間的具有距離D₇ 。在一些實施例中，距離D₇ 的範圍可為約5mm至約200mm，例如，為約40mm至約60mm。Similarly, in some embodiments, the position of the pressing roller 204 may be adjusted so that there is a distance D ₇ between the top tangent of the second guide roller 306 and the bottom tangent of the pressing roller 204. In some embodiments, the distance D ₇ may range from about 5 mm to about 200 mm, for example, from about 40 mm to about 60 mm.

應理解的是，若壓制輥204下壓的距離(亦即，距離D₆ 或距離D₇ 的大小)過大，則可能會產生過大的應力，導致光學膜層疊體400損壞或破裂，反之，若壓制輥204下壓的距離過小，則可能無法有效防止收縮或皺摺的產生。此外，在不同的實施例中，可根據光學膜層疊體400的膜面性質(例如，收縮率等)，調整壓制輥204的適當的下壓距離。It should be understood that if the pressing distance of the pressing roller 204 (that is, the size of the distance D ₆ or the distance D ₇ ) is too large, excessive stress may be generated, resulting in damage or cracking of the optical film laminate 400, otherwise, if If the pressing distance of the pressing roller 204 is too small, the shrinkage or wrinkles may not be effectively prevented. In addition, in different embodiments, the proper pressing distance of the pressing roller 204 can be adjusted according to the film surface properties of the optical film laminate 400 (for example, shrinkage rate, etc.).

接著，請參照第2圖，第2圖顯示根據本揭露另一些實施例中，光學膜處理裝置20的結構示意圖。應理解的是，後文中與前文相同或相似的組件或元件將以相同或相似之標號表示，其材料與功能皆與前文所述相同或相似，故此部分在後文中將不再贅述。Next, please refer to FIG. 2. FIG. 2 shows a schematic structural diagram of an optical film processing device 20 according to other embodiments of the present disclosure. It should be understood that the same or similar components or elements in the following text will be denoted by the same or similar reference numerals, and their materials and functions are the same or similar to those described above, so this part will not be repeated in the following text.

第2圖所示的光學膜處理裝置20與第1A圖所示的光學膜處理裝置10相似，其差異在於，在此實施例中，光學膜層疊體400橫跨於壓制輥204上方，壓制輥204是以上升的方式施加應力於光學膜層疊體400的膜面使其平整。在此實施例中，光學膜層疊體400設置於壓制輥204的上方，且設置於第一導引輥304及第二導引輥306的下方。The optical film processing apparatus 20 shown in FIG. 2 is similar to the optical film processing apparatus 10 shown in FIG. 1A. The difference is that in this embodiment, the optical film laminate 400 straddles the pressing roller 204, and the pressing roller In 204, stress is applied to the film surface of the optical film laminate 400 to make it level. In this embodiment, the optical film laminate 400 is arranged above the pressing roller 204 and below the first guide roller 304 and the second guide roller 306.

在此實施例中，可藉由控制升降組件202，調整壓制輥204的高度，使壓制輥204的頂表面高於第一導引輥304的底表面以及第二導引輥306的底表面，以產生上推應力於光學膜層疊體400。In this embodiment, the height of the pressing roller 204 can be adjusted by controlling the lifting assembly 202 so that the top surface of the pressing roller 204 is higher than the bottom surface of the first guide roller 304 and the bottom surface of the second guide roller 306. In order to generate an upward stress on the optical film laminate 400.

相似地，在此實施例中，可調整壓制輥204的位置，使光學膜層疊體400的傳送方向從第一方向A₁ 偏移至第二方向A₂ 。在一些實施例中，第一方向A₁ 與第二方向A₂ 之間的夾角θ₁ 的範圍為約5度至約45度，或為約10度至約30度。在此實施例中，設置於壓制輥204下游的第二導引輥306可使光學膜層疊體沿第四方向A₄ 傳送。在一些實施例中，第四方向A₄ 與第二方向A₂ 之間的夾角θ₂ 的範圍為約135度至約175度，或為約125度至約155度，或為約120度至約150度。Similarly, in this embodiment, the position of the pressing roller 204 can be adjusted to shift the conveying direction of the optical film laminate 400 from the first direction A ₁ to the second direction A ₂ . In some embodiments, the included angle θ ₁ between the first direction A ₁ and the second direction A ₂ ranges from about 5 degrees to about 45 degrees, or from about 10 degrees to about 30 degrees. In this embodiment, a second guide roller disposed in the pressing roller 204 can 306 downstream of the optical film laminate along the fourth conveying direction A _4. In some embodiments, the range of A ₄ ₂ of the fourth direction and the second direction angle θ A ₂ is between about 135 degrees to about 175 degrees, or from about 125 degrees to about 155 degrees, or from about 120 degrees to About 150 degrees.

詳細而言，在此實施例中，可調整壓制輥204的位置，使第一導引輥304的底部切線與壓制輥204的頂部切線之間的具有距離D₈ ，亦即，使光學膜層疊體400的膜面上推距離D₈ 。在一些實施例中，距離D₈ 的範圍可為約5mm至約200mm，例如，為約40mm至約60mm。相似地，在此實施例中，可調整壓制輥204的位置，使第二導引輥306的底部切線與壓制輥204的頂部切線之間的具有距離D₉ 。在一些實施例中，距離D₉ 的範圍可為約5mm至約200mm，例如，為約40mm至約60mm。In detail, in this embodiment, the position of the pressing roller 204 can be adjusted so that there is a distance D ₈ between the bottom tangent of the first guide roller 304 and the top tangent of the pressing roller 204, that is, the optical film is laminated The film surface of the body 400 is pushed by a distance D ₈ . In some embodiments, the distance D ₈ may range from about 5 mm to about 200 mm, for example, from about 40 mm to about 60 mm. Similarly, in this embodiment, the position of the pressing roller 204 can be adjusted so that there is a distance D ₉ between the bottom tangent of the second guide roller 306 and the top tangent of the pressing roller 204. In some embodiments, the distance D ₉ may range from about 5 mm to about 200 mm, for example, from about 40 mm to about 60 mm.

接著，請參照第3圖，第3圖顯示根據本揭露另一些實施例中，光學膜處理裝置30的結構示意圖。第3圖所示的光學膜處理裝置30與第1A圖所示的光學膜處理裝置10相似，其差異在於，在此實施例中，光學膜處理裝置30於乾燥爐100中包含一個以上的壓制機構200。如第3圖所示，光學膜處理裝置30在第二導引輥306的下游進一步包含另一壓制機構200。Next, please refer to FIG. 3, which shows a schematic structural diagram of an optical film processing device 30 according to other embodiments of the present disclosure. The optical film processing device 30 shown in Figure 3 is similar to the optical film processing device 10 shown in Figure 1A. The difference is that, in this embodiment, the optical film processing device 30 includes more than one press in the drying oven 100 Institutions 200. As shown in FIG. 3, the optical film processing device 30 further includes another pressing mechanism 200 downstream of the second guide roller 306.

應理解的是，雖然圖式中繪示兩個壓制機構200，但在其它實施例中，可根據不同的製程需求或光學膜的膜面特性等，設置適當數量的壓制機構200。It should be understood that, although two pressing mechanisms 200 are shown in the drawing, in other embodiments, an appropriate number of pressing mechanisms 200 may be provided according to different process requirements or film surface characteristics of the optical film.

綜上所述，根據本揭露一些實施例，光學膜的製造方法可藉由設置於乾燥爐內的壓制結構，均勻地施加應力於剛進入乾燥爐內的光學膜，降低光學膜急遽收縮或產生皺摺的情形。相較於使用的螃蟹夾以預防光學膜收縮的一般製程，本揭露實施例提供的光學膜的製造方法可減少膜材的損耗量約20%。此外，可即時調整的壓制結構亦可減少設備調整所需的作業時間，提升製程的效率及產能約10%。In summary, according to some embodiments of the present disclosure, the optical film manufacturing method can uniformly apply stress to the optical film that has just entered the drying furnace by using the pressing structure set in the drying furnace to reduce the rapid shrinkage or generation of the optical film. The crumpled situation. Compared with the general manufacturing process of using crab clips to prevent shrinkage of the optical film, the manufacturing method of the optical film provided in the embodiment of the present disclosure can reduce the loss of the film by about 20%. In addition, the press structure that can be adjusted in real time can also reduce the operation time required for equipment adjustment, and increase the efficiency and productivity of the process by about 10%.

雖然本揭露的實施例及其優點已揭露如上，但應該瞭解的是，任何所屬技術領域中具有通常知識者，在不脫離本揭露之精神和範圍內，當可作更動、替代與潤飾。此外，本揭露之保護範圍並未侷限於說明書內所述特定實施例中的製程、機器、製造、物質組成、裝置、方法及步驟，任何所屬技術領域中具有通常知識者可從本揭露揭示內容中理解現行或未來所發展出的製程、機器、製造、物質組成、裝置、方法及步驟，只要可以在此處所述實施例中實施大抵相同功能或獲得大抵相同結果皆可根據本揭露使用。因此，本揭露之保護範圍包括前述製程、機器、製造、物質組成、裝置、方法及步驟。另外，每一申請專利範圍構成個別的實施例，且本揭露之保護範圍也包括各個申請專利範圍及實施例的組合。本揭露之保護範圍當視後附之申請專利範圍所界定者為準。Although the embodiments of the present disclosure and their advantages have been disclosed above, it should be understood that any person with ordinary knowledge in the relevant technical field can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the scope of protection of the present disclosure is not limited to the manufacturing process, machinery, manufacturing, material composition, device, method, and steps in the specific embodiments described in the specification. Anyone with ordinary knowledge in the technical field can disclose the content from this disclosure. It is understood that the current or future developed processes, machines, manufacturing, material composition, devices, methods, and steps can be used according to the present disclosure as long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein. Therefore, the protection scope of the present disclosure includes the aforementioned manufacturing processes, machines, manufacturing, material composition, devices, methods, and steps. In addition, each patent application scope constitutes an individual embodiment, and the protection scope of the present disclosure also includes each patent application scope and a combination of embodiments. The scope of protection of this disclosure shall be subject to those defined in the attached patent application scope.

10、20、30:光學膜處理裝置100:乾燥爐100b:底表面102:入口104:出口200:壓制機構202:升降組件202A:基座202B:升降支架202C:手動轉輪204:壓制輥204e:端部302:夾持輥304:第一導引輥306:第二導引輥308:第三導引輥400:光學膜層疊體400a:光學膜A₁:第一方向A₂:第二方向A₃:第三方向A₄:第四方向D₁、D₂、D₃、D₄、D₅、D₆、D₇、D₈、D₉:距離E:區域r₁、r₂:半徑W₁、W₂:寬度θ₁、θ₂:夾角10, 20, 30: optical film processing device 100: drying oven 100b: bottom surface 102: entrance 104: exit 200: pressing mechanism 202: lifting assembly 202A: base 202B: lifting bracket 202C: manual runner 204: pressing roller 204e : End 302: nip roller 304: first guide roller 306: second guide roller 308: third guide roller 400: optical film laminate 400a: optical film A ₁ : first direction A ₂ : second Direction A ₃ : Third direction A ₄ : Fourth direction D ₁ , D ₂ , D ₃ , D ₄ , D ₅ , D ₆ , D ₇ , D ₈ , D ₉ : Distance E: Area r ₁ , r ₂ : Radius W ₁ , W ₂ : width θ ₁ , θ ₂ : included angle

第1A圖顯示根據本揭露一些實施例中，光學膜處理裝置的結構示意圖；第1B圖顯示根據本揭露一些實施例中，第1A圖中的區域E的局部放大圖；第1C圖顯示根據本揭露一些實施例中，第1A圖中的區域E的局部立體示意圖；第2圖顯示根據本揭露一些實施例中，光學膜處理裝置的結構示意圖；第3圖顯示根據本揭露一些實施例中，光學膜處理裝置的結構示意圖。Figure 1A shows a schematic structural diagram of an optical film processing device in some embodiments according to the present disclosure; Figure 1B shows a partial enlarged view of area E in Figure 1A in some embodiments according to the present disclosure; In some embodiments, a partial three-dimensional schematic diagram of area E in FIG. 1A is disclosed; FIG. 2 shows a schematic structural diagram of an optical film processing device in some embodiments according to the disclosure; FIG. 3 shows some embodiments according to the disclosure, Schematic diagram of the optical film processing device.

10:光學膜處理裝置 10: Optical film processing device

100:乾燥爐 100: Drying furnace

100b:底表面 100b: bottom surface

102:入口 102: entrance

104:出口 104: Exit

200:壓制機構 200: suppression mechanism

202:升降組件 202: Lifting components

204:壓制輥 204: pressing roller

302:夾持輥 302: clamping roller

304:第一導引輥 304: The first guide roller

306:第二導引輥 306: second guide roller

308:第三導引輥 308: The third guide roller

400:光學膜層疊體 400: Optical film laminate

400a:光學膜 400a: Optical film

A₁:第一方向 A ₁ : First direction

A₂:第二方向 A ₂ : Second direction

A₃:第三方向 A ₃ : Third party

A₄:第四方向 A ₄ : Fourth direction

D₁、D₂、D₃、D₄、D₅:距離 D ₁ , D ₂ , D ₃ , D ₄ , D ₅ : distance

E:區域 E: area

Claims

一種光學膜處理裝置，包括：一乾燥爐，包括一入口；以及一壓制結構，設置於該乾燥爐內且鄰近於該入口，其中該壓制結構包括一升降組件及安裝於該升降組件上的一壓制輥；其中該壓制輥與該入口之間的距離的範圍為300mm至1100mm。An optical film processing device includes: a drying furnace including an entrance; and a pressing structure arranged in the drying furnace and adjacent to the entrance, wherein the pressing structure includes a lifting assembly and a lifting assembly installed on the lifting assembly The pressing roller; wherein the distance between the pressing roller and the inlet ranges from 300 mm to 1100 mm.

如申請專利範圍第1項所述之光學膜處理裝置，其中該升降組件控制該壓制輥於垂直方向上之移動。The optical film processing device described in the first item of the scope of patent application, wherein the lifting assembly controls the movement of the pressing roller in the vertical direction.

如申請專利範圍第1項所述之光學膜處理裝置，其中該壓制輥與該入口之間的距離的範圍為500mm至900mm。According to the optical film processing device described in item 1 of the scope of patent application, the distance between the pressing roller and the entrance is in the range of 500 mm to 900 mm.

如申請專利範圍第1項所述之光學膜處理裝置，更包括一夾持輥，設置於該乾燥爐的上游，用以將複數層光學膜貼合以形成一光學膜層疊體。The optical film processing device described in the first item of the scope of the patent application further includes a nip roller, which is arranged upstream of the drying furnace for bonding a plurality of optical films together to form an optical film laminate.

如申請專利範圍第4項所述之光學膜處理裝置，其中該壓制輥具有一第一寬度，該光學膜層疊體具有一第二寬度，該第二寬度為該第一寬度的60%至95%。The optical film processing device described in claim 4, wherein the pressing roller has a first width, the optical film laminate has a second width, and the second width is 60% to 95% of the first width %.

如申請專利範圍第1項所述之光學膜處理裝置，更包括一第一導引輥，設置於該入口與該壓制輥之間，其中該第一導引輥與該入口之間的距離的範圍為100mm至300mm。The optical film processing device described in item 1 of the scope of patent application further includes a first guide roller arranged between the entrance and the pressing roller, wherein the distance between the first guide roller and the entrance is equal to The range is from 100mm to 300mm.

如申請專利範圍第6項所述之光學膜處理裝置，其中該第一導引輥的半徑範圍為100mm至200mm，且該壓制輥的半徑範圍為100mm至500mm；且/或該壓制輥與該第一導引輥的半徑比為1:1至3:1。The optical film processing device described in item 6 of the scope of patent application, wherein the radius of the first guide roller is 100mm to 200mm, and the radius of the pressing roller is 100mm to 500mm; and/or the pressing roller and the The radius ratio of the first guide roller is 1:1 to 3:1.

如申請專利範圍第1項所述之光學膜處理裝置，其中該壓制輥的兩端部分別與該升降組件連接。According to the optical film processing device described in item 1 of the scope of patent application, the two ends of the pressing roller are respectively connected with the lifting assembly.

如申請專利範圍第1項所述之光學膜處理裝置，其中該壓制輥的材料為不銹鋼或鈦合金；且/或其中該壓制輥的洛氏硬度(Hrc)的範圍為5090/或該壓制輥的表面粗糙度的範圍為0.01µm至0.1µm。The optical film processing device described in item 1 of the scope of patent application, wherein the material of the pressing roller is stainless steel or titanium alloy; and/or the Rockwell hardness (Hrc) of the pressing roller is in the range of 5090/or the pressing roller The range of surface roughness is 0.01µm to 0.1µm.

如申請專利範圍第1項所述之光學膜處理裝置，該壓制輥的一輪面經鏡面拋光處理，或具有一鍍膜層，其中該鍍膜層的材料選自鉻、陶瓷、鐵弗龍、矽膠所組成的群組。For the optical film processing device described in item 1 of the scope of the patent application, a roller surface of the pressing roller is mirror-polished or has a coating layer, wherein the material of the coating layer is selected from chromium, ceramics, Teflon, and silicone Group.

如申請專利範圍第1項所述之光學膜處理裝置，更包括一第二導引輥，設置於該壓制輥的下游，其中該第一導引輥與該第二導引輥的水平高度實質上相同。The optical film processing device described in item 1 of the scope of the patent application further includes a second guide roller arranged downstream of the pressing roller, wherein the level of the first guide roller and the second guide roller is substantially Same as above.

一種光學膜的製造方法，包括：提供一光學膜處理裝置，包括：一乾燥爐，包括一入口；以及一壓制結構，設置於該乾燥爐內且鄰近於該入口，其中該壓制結構包括一升降組件及安裝於該升降組件上的一壓制輥；將經貼合的一光學膜層疊體沿一第一方向傳送至該乾燥爐中，以乾燥經貼合的該光學膜層疊體；以及藉由該升降組件調整該壓制輥的位置，使該光學膜層疊體的傳送方向從該第一方向偏移至一第二方向。A method for manufacturing an optical film includes: providing an optical film processing device, including: a drying furnace including an inlet; and a pressing structure disposed in the drying furnace and adjacent to the inlet, wherein the pressing structure includes a lift Assembly and a pressing roller installed on the lifting assembly; conveying a laminated optical film laminate to the drying oven in a first direction to dry the laminated optical film laminate; and The lifting assembly adjusts the position of the pressing roller to shift the conveying direction of the optical film laminate from the first direction to a second direction.

如申請專利範圍第12項所述之光學膜的製造方法，其中該第一方向與該第二方向之間的夾角的範圍為5度至45度。According to the manufacturing method of the optical film described in claim 12, the angle between the first direction and the second direction ranges from 5 degrees to 45 degrees.

如申請專利範圍第12項所述之光學膜的製造方法，該光學膜處理裝置更包括一夾持輥，設置於該乾燥爐的上游，用以將複數層光學膜貼合，以形成該光學膜層疊體。According to the manufacturing method of optical film described in item 12 of the scope of patent application, the optical film processing device further includes a nip roller, which is arranged upstream of the drying furnace, and is used for bonding a plurality of optical films to form the optical film. Film laminate.

如申請專利範圍第12項所述之光學膜的製造方法，其中藉由該升降組件調整該壓制輥的位置包括使該壓制輥沿著一第三方向移動，且該第三方向實質上與該第一方向垂直。According to the manufacturing method of the optical film described in item 12 of the scope of patent application, wherein adjusting the position of the pressing roller by the lifting assembly includes moving the pressing roller along a third direction, and the third direction is substantially in line with the third direction. The first direction is vertical.

如申請專利範圍第12項所述之光學膜的製造方法，該光學膜處理裝置更包括一第一導引輥，設置於該入口與該壓制輥之間，其中藉由該升降組件調整該壓制輥的位置，使該第一導引輥的一頂部切線與該壓制輥的一底部切線之間的距離的範圍為5mm至200mm。For the optical film manufacturing method described in item 12 of the scope of the patent application, the optical film processing device further includes a first guide roller disposed between the entrance and the pressing roller, wherein the pressing is adjusted by the lifting assembly The position of the roller is such that the distance between a top tangent line of the first guide roller and a bottom tangent line of the pressing roller ranges from 5 mm to 200 mm.

如申請專利範圍第16項所述之光學膜的製造方法，該光學膜處理裝置更包括一第二導引輥，設置於該壓制輥的下游，其中該第二導引輥的一頂部切線與該壓制輥的該底部切線之間的距離的範圍為5mm至200mm。According to the method for manufacturing an optical film described in claim 16, the optical film processing device further includes a second guide roller arranged downstream of the pressing roller, wherein a top tangent of the second guide roller is The range of the distance between the bottom tangent lines of the pressing roller is 5 mm to 200 mm.

如申請專利範圍第12項所述之光學膜的製造方法，該光學膜處理裝置更包括一第一導引輥，設置於該入口與該壓制輥之間，其中藉由該升降組件調整該壓制輥的位置，使該第一導引輥的一底部切線與該壓制輥的一頂部切線之間的距離的範圍為5mm至200mm。For the optical film manufacturing method described in item 12 of the scope of the patent application, the optical film processing device further includes a first guide roller disposed between the entrance and the pressing roller, wherein the pressing is adjusted by the lifting assembly The position of the roller is such that the distance between a bottom tangent line of the first guide roller and a top tangent line of the pressing roller ranges from 5 mm to 200 mm.

如申請專利範圍第18項所述之光學膜的製造方法，該光學膜處理裝置更包括一第二導引輥，設置於該壓制輥的下游，其中該第二導引輥的一底部切線與該壓制輥的該頂部切線之間的距離的範圍為5mm至200mm。According to the method for manufacturing an optical film described in item 18 of the scope of the patent application, the optical film processing device further includes a second guide roller arranged downstream of the pressing roller, wherein a bottom tangent of the second guide roller is The range of the distance between the top tangent lines of the pressing roller is 5 mm to 200 mm.

如申請專利範圍第17或19項所述之光學膜的製造方法，其中該第二導引輥使該光學膜層疊體沿一第四方向傳送，且該第四方向與該第二方向之間的夾角的範圍為135度至175度。The method for manufacturing an optical film as described in item 17 or 19 of the scope of patent application, wherein the second guide roller conveys the optical film laminate in a fourth direction, and between the fourth direction and the second direction The included angle ranges from 135 degrees to 175 degrees.

如申請專利範圍第12項所述之光學膜的製造方法，其中該光學膜層疊體與該壓制輥的一部份表面接觸，其中與該光學膜層疊體接觸的該壓制輥的部分表面佔該壓制輥的總表面積的5%至50%。The method for manufacturing an optical film as described in claim 12, wherein the optical film laminate is in contact with a part of the surface of the pressing roller, and a part of the surface of the pressing roller contacting the optical film laminate occupies the 5% to 50% of the total surface area of the pressing roll.

如申請專利範圍第12項所述之光學膜的製造方法，其中該乾燥爐內的溫度的範圍為40℃至100℃。According to the manufacturing method of optical film described in item 12 of the scope of patent application, the temperature in the drying furnace ranges from 40°C to 100°C.