201109708 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種光學膜片’特別是一種具有硬化層 的光學膜片。 【先前技術】 一般來說’背光模組包括冷陰極螢光燈管、反射 罩、擴散板、擴散膜與增免膜’冷陰極螢光燈管用以 產生光源，而反射罩則是用以將冷陰極螢光燈管所產 生的光線導引至朝擴散板之方向。擴散板的功用主要 是將冷陰極螢光燈管所發出的光線進行擴散，以使照 射至液晶面板（未繪示）的光線能更佳均勻，而較不 會在液晶顯不器的顯不面上產生党度不均勻的現象。 此外，由於擴散板具有多個光擴散粒子，所以會造成 擴散板的穿透率降低。一般來說’擴散板的穿透率為 50%〜70%。 此外，擴散板往往仍不足以完全克服亮度不均勻 的現象，所以需加上擴散膜’以使光線更均勻地擴散， 擴散膜是一種於其表面上均勻塗佈有光擴散粒子的光 學膜。另外，為了增加於視角範圍的亮度，因此在擴 散膜的上方加上增亮膜。 請參照圖1，圖1所繪示為增亮膜的前視圖。增亮 膜110主要由一基板H1與一結構層112所構成。其 中，基板111的厚度約為175 em，其材質為透明的聚 對苯二曱酸乙二酯（polyethylene terephthalate，簡稱 201109708 PET)，且基板111上塗佈有黏著劑。而結構層112的 厚度約為25/z m，其材質則為壓克力樹脂，此結構層 112是藉由上述黏著劑而與基板ill相結合。由於增 亮膜110的結構層112具有多個菱鏡狀的微結構，故 具有聚光的效果，可讓增亮膜110所射出的光線之出 光角度變小，進而增加背光模組在視角範圍内所呈現 的亮度。 然而’從成本方面考量，基板111的設置會使材 料的成本增加。而且，一般來說基板111的透光率須 維持在89%〜91%之間，故需由透光率較高且品質較佳 的材質所構成’這又會進一步增加成本。此外，在光 線吸收率方面，不論是基板111或是結構層112等介 質對光線皆有一定的吸收率，因此當光線從增亮膜 11〇的入射面113入射並通過基板m與結構層112 後，會產生一定的光耗損性。 因此’如何降低增亮膜的材料成本且減少光的耗 損’是值得本領域具有通常知識者去思量地。在申請 號098116486中，其發明人提出了一未具有基板的^ 學膜片，此光學膜片能有效減少材料成本及光的耗摘 ^ :、、：而’本案之申5青人發現此未具有基板的光學膜 片的機械強度較差且較易被刮傷。 、 【發明内容】 >因此’本發明之目的是提供一種光學膜片，該光學 膜片除了具有較低的材料成本且能減少光的耗損外，還具 #車父兩的機械強度且不易被刮傷。 201109708 根據上述目的與其他目的，本發明提供—種光學膜 片，此光學膜片包括-本體層與一硬化層，其中本體層主要 由:成型膠硬化喊’該成型社要由光硬化翻旨與熱硬化 脂類所構成。熱硬化脂類相對於成型膠的重量百 1%〜5%’且在本體層的表面上包括有多個第-微結構:另 外’硬化ί設置於本體層的下方，且硬化層主要由光硬化樹 脂硬化而成。 # 於上述之光學膜片中’光硬化樹脂為紫外線硬化樹脂。 於上述之光學膜片中，第一微結構的形狀為菱鏡狀。 於上述之光學膜片中，第—微結構的形狀為半球形狀。 述之光學膜片中’熱硬化脂類為選自由聚醋或聚 風基甲酉义乙醋所組成之族群的其中一種材質。 丄於上述之光學膜片t，硬化層主要由固成分為職的 光硬化樹脂所硬化而成。 • 目的與其他目的，本發明提供-種光學膜 _ 4的1^方法’此製造方法包括下形驟。首先，提供未 魏的-基底膠，該基底膠主要是由級化難所構成。接 ί 絲細光照以使其硬化。縣，於硬化後的基底 —成郷，該成轉主要由光硬化樹麟熱硬化脂 f /而成，其中熱硬化脂類相對於成型膠的重量百分比約 =/〇〜5%。之後’形成多個第一微結構於成型膠上，並對成 2進订光照與加熱以使其硬化。然後，將硬化後的基底膠 與成型膠進行蝴，以形成多個光學膜片。 於上述之光學膜片的製造方法中，光硬化樹脂為紫外 201109708 線硬化樹脂。 於上述之光學膜片的製造方法中，未硬化的成型膠之 黏度為250cps以上，較佳為250〜600cps。 於上述之光學膜片的製造方法中，熱硬化脂類為選自 由聚酯或聚氨基曱酸乙酯所組成之族群的其中一種材質。 於上述之光學膜片的製造方法中，基底膠是由固成分 為100%的光硬化樹脂所構成。201109708 VI. Description of the Invention: [Technical Field] The present invention relates to an optical film ', particularly an optical film having a hardened layer. [Prior Art] Generally, the 'backlight module includes a cold cathode fluorescent lamp, a reflector, a diffuser, a diffusion film, and a film of a cold cathode fluorescent lamp for generating a light source, and a reflector is used for The light generated by the cold cathode fluorescent lamp tube is directed to the direction of the diffusion plate. The function of the diffusion plate is mainly to diffuse the light emitted by the cold cathode fluorescent lamp tube, so that the light irradiated to the liquid crystal panel (not shown) can be better and more uniform, and less obvious in the liquid crystal display device. There is a phenomenon of uneven party membership. Further, since the diffusion plate has a plurality of light-diffusing particles, the transmittance of the diffusion plate is lowered. Generally, the transmittance of the diffuser plate is 50% to 70%. Further, the diffusion plate is often insufficient to completely overcome the phenomenon of uneven brightness, so that a diffusion film ' is required to diffuse the light more uniformly. The diffusion film is an optical film uniformly coated with light-diffusing particles on its surface. Further, in order to increase the brightness in the viewing angle range, a brightness enhancement film is added above the diffusion film. Please refer to FIG. 1 , which is a front view of the brightness enhancement film. The brightness enhancing film 110 is mainly composed of a substrate H1 and a structural layer 112. The substrate 111 has a thickness of about 175 em and is made of transparent polyethylene terephthalate (201109708 PET), and the substrate 111 is coated with an adhesive. The structural layer 112 has a thickness of about 25/z m and is made of an acrylic resin. The structural layer 112 is bonded to the substrate ill by the above adhesive. Since the structural layer 112 of the brightness enhancement film 110 has a plurality of prism-shaped microstructures, it has the effect of collecting light, so that the light exiting angle of the light emitted by the brightness enhancement film 110 is reduced, thereby increasing the range of the backlight module in the viewing angle. The brightness presented inside. However, considering the cost, the arrangement of the substrate 111 increases the cost of the material. Further, in general, the transmittance of the substrate 111 is required to be maintained between 89% and 91%, so that it is required to be composed of a material having a high light transmittance and a good quality, which further increases the cost. In addition, in terms of light absorption rate, whether the substrate 111 or the structural layer 112 has a certain absorption rate to the light, when the light is incident from the incident surface 113 of the brightness enhancement film 11〇 and passes through the substrate m and the structural layer 112. After that, it will produce a certain amount of light loss. Therefore, how to reduce the material cost of the brightness enhancing film and reduce the loss of light is worthy of consideration by those skilled in the art. In the application number 098116486, the inventor proposes a film which does not have a substrate, and the optical film can effectively reduce the material cost and the light consumption of the film ^:,: and the applicant of the case 5 found this An optical film that does not have a substrate has poor mechanical strength and is easily scratched. SUMMARY OF THE INVENTION [Therefore, the object of the present invention is to provide an optical film which, in addition to having a lower material cost and capable of reducing the loss of light, has the mechanical strength of the #车父二 and is not easy. Was scratched. According to the above and other objects, the present invention provides an optical film comprising: a body layer and a hardened layer, wherein the body layer is mainly composed of: a molding gel hardened, and the molding body is to be cured by light hardening. It is composed of thermosetting lipids. The thermosetting grease has a weight of 1% to 5% with respect to the weight of the molding gel and includes a plurality of first-micro structures on the surface of the body layer: another 'hardened ί is disposed under the body layer, and the hardened layer is mainly light The hardened resin is hardened. # In the above optical film, the photocurable resin is an ultraviolet curable resin. In the above optical film, the shape of the first microstructure is a magenta shape. In the above optical film, the shape of the first microstructure is a hemispherical shape. In the optical film described, the 'thermosetting grease is one selected from the group consisting of polyacetate or polymethyl ketone. In the above optical film t, the hardened layer is mainly hardened by a photohardenable resin which is a solid component. • OBJECT AND OTHER OBJECTS, The present invention provides a method for producing an optical film _ 4 . The manufacturing method includes a lower forming step. First, a non-wei-based adhesive is provided, which is mainly composed of difficult grades. Gently illuminate the light to harden it. In the county, after hardening, the base is formed into a crucible, and the transformation is mainly formed by photohardening of the heat hardening grease f/, wherein the weight percentage of the thermosetting grease relative to the molding gel is about / / 〇 ~ 5%. Thereafter, a plurality of first microstructures are formed on the molding gel, and the illumination and heating are ordered to be hardened. Then, the hardened base rubber and the molding gel are subjected to a butterfly to form a plurality of optical films. In the above method for producing an optical film, the photo-curing resin is an ultraviolet 201109708 line hardening resin. In the above method for producing an optical film, the viscosity of the uncured molding gel is 250 cps or more, preferably 250 to 600 cps. In the above method for producing an optical film, the thermosetting grease is one selected from the group consisting of polyester or polyaminodecanoate. In the above method for producing an optical film, the base rubber is composed of a photocurable resin having a solid content of 100%.
由於本發明之光學膜片具有硬化層’故可防止光學 膜片的本體層被刮傷，且硬化層還可增加光學膜片的整^ 強度。 “為讓本發明之上述目的、特徵和優點更能明顯易 憧，下文將以實施例並配合所附圖示，作詳細說明如 下。 【實施方式】 …明4閱圖2,圖2所緣示為本發明之光學膜片的第 貫轭例。此光學膜片200包括一本體層210與一硬化 層22〇’其中本11層210的表面上包括多個第-微結構212, 而硬化層220則是設置於本體層2ω的下方。此外，本體 層」^主要由—成型膠硬化而成，該成型膠主要由光硬化樹 ί化:成ί 1%〜5%。另外，硬化層220主要由光硬⑽脂 mi硬化層220主要由固成分為卿。的光硬 成，而光硬化樹脂為紫外線硬化樹脂。在本 只例中，本領域具有通常知識者可將硬化層220調整在硬 201109708 度1H與硬度9H之間。 其中，光硬化樹脂是指：當受到某波段範圍的光線照射 時’其會產生硬化。在本實施例中，光硬化樹脂為紫化線 硬化樹脂，亦即其受到紫化線照射時會產生硬化。紫化線硬 化樹脂以其具有良好韌性、成形容易且方便加工等特 性而被廣泛應用，其主要是由寡聚物（Oligomer)所組 成’其中尚可添加有反應性稀釋單體（Reactive monomer)及光起始劑（Photo initiator)等以增加其性質 及反應速率。本發明所使用之紫化線硬化樹脂的主要成 分為聚g旨丙烯酸寡聚物(Polyester acrylic oligomer)、環 氧丙烯酸寡聚物（Epoxy acrylic oligomer)或聚氨基甲 酸乙 S旨丙烯酸寡聚物(Polyurethane acrylic oligomer)。 本領域具有通常知識者可依據需要調配紫化線硬化樹 脂中各組成成分的比例，以達到所欲的性質。例如，用 於製造硬化層的紫化線硬化樹脂便不同於本體層中的紫化 線硬化樹脂。用於硬化層的紫化線硬化樹脂於硬化後會有較 高的韌性與強度，故硬化層220具有耐磨與防刮的功能。 第一微結構212的形狀為菱鏡柱狀，故當光線通過第一 微結構212時會產生收斂，而達到聚光的效果。當然，本領 域具有通常知識者也可將第一微結構212設計成其他形狀， 如：透鏡狀、金字塔狀等可達到聚光效果的形狀，或者也可 設計成半圓球狀、凹槽狀等可達到擴散效果的形狀。 以下，將對第一實施例的光學膜片200之製作方 法進行介紹。請參照圖3，圖3所繪示為第一實施例 的光學膜片之製造流程圖。首先，進行步驟S310，提 201109708 供一基底膠，此基底膠主要是由光硬化樹脂所構成，其是 圖2中之硬化層220的原材料。在本實施例中，光硬化樹脂 為紫外線硬化樹脂’且固成分為100%β請同時參照圖3 與圖4A，圖4A所繪示為本實施例之光學膜片的製造設 備之前半部份。基底膠410是儲存在一容器411内，容器 411具有一閥門81a。再來’進行步驟S32〇，將基底膠 410塗佈在一離型膜413上。當閥門81a被打開後，基底 膠410便會經由閥門81a而流到離型膜413上。此離型膜 籲 413是由透明材質所構成，例如：聚對苯二甲酸乙二酯、 拉伸聚丙烯或其他不會與基底膠410產生架橋的透明材質。 此外，離型膜413的上方表面塗佈有輕量的黏著劑，以使 基底膠410此與離型膜413相黏附並往前傳送。離型膜413 是由一離型膜釋放輪412釋放出，並藉由輔助輪414、 417、418的拉力而往前移動。需注意的是，辅助輪 414、417、418除了有帶動離型膜413的功用外，還可^ 由辅助輪414、417、418對離型膜413所產生的張力而達 • 到支撐離型膜413的功用，以防止離型膜413上的基底膠 410因本身的重量而產生變形。 於步驟S330中，將第一光源416a〜416b所發出的光線， 例如.紫外光，照射在基底膠41〇上，以使基底膠產生 硬化。再來，請同時參照圖3與圖4B，圖4B所繪示為本 實施例之光學膜片的製造設備之後半部份。接著，進行步 驟S340，將一成型膠51〇塗佈於硬化後的基底膠 此成型膠510主要是由光硬化樹脂與熱硬化脂類進行 混合而形成，其中熱硬化脂類相對於第一成型膠整體的重量 201109708 百分比約為1%〜5%。 再來，進行步驟S350，將滾輪515滾壓在成型膠51〇 上。，雜515的表面515a上具有壓印圖案（未繪示）， 在本實施例中，壓印圖案為向内凹陷的微型結構。當滚輪5i5 滾壓過成型膠510後，滾輪515上的印圖案便會轉印至成 型勝510上，並形成多個第一微結構212於成型膠51〇上。 於步驟S360中，將第二光源516a〜516d所發出的光線， 例如：紫外光，照射在成型膠51〇上。在本實施例中，步驟 S350與步驟S360是同時進行地。待完成步驟S36〇後，接著 進行步驟S370 ’成型膠51〇會被傳送到一熱管519的上方。 田成型膠510經過第二光源516a〜516d的照射與熱管 的加熱後會產生硬化。在本實施例中，是先做完步驟 S360後再進行步驟S370，但步驟S360與步驟S370其實也 可同時進行’而熱管519也可改成其他型態的加熱源，例如 以，風加熱的方式將成型膠51〇烘乾。此外，本領域具有 通常知識者也可不設置任何加熱源，因為第二光源 516a 516d本身便會發出輕射熱，此輕射熱便可對成型膠 產生加熱的效果。 經過步驟S360與步驟S370後，硬化後的成型膠51〇 與基底膠410彼此相結合，並成為一母光學膜片。之後，於 =驟S380中，將母光學膜片收納在一產品收納輪52〇上。 當然’本領域具有通常知識者也可將產品收納輪520 改設計為其他型態的產品收納裝置，只要能將母光學 膜片進行收納即可。 201109708 再來，於步驟S390中，將捲繞在產品收納輪52〇的 母光學膜片取下，並將其分割成多個如圖2A所示之光學犋 片200。此時，光學膜片2〇〇的下方還貼附有離型臈，、 由於離型膜413與光學膜片200間只是藉由輕量的黏著劑 而結合在一起，故只要施加些微的力量便可將其撕離。當 =，考慮到光學膜片200於搬運或保存時可能會受到外& 環境的汙染，故可等到欲使用光學膜片2〇〇時再將離型膜 4Π撕下即可。而且，於搬運或保存時，光學膜片2〇〇的 上方表面還可另外貼上保護膜，以保護其上的第一微結構 212。 、，在此，將對上述之成型膠510的材質作較詳細的敘 述。成型膠510是由光硬化樹脂與熱硬化脂類所混合而成， 光硬化樹脂是指：當受到級段麵的光賴辦，其會產 生硬化。在本實施例中，光硬化樹脂為紫化線硬化膠，亦 即其受到紫化線縣時會產生硬化。另外，熱硬化脂類例 如為.聚酯或聚氨基甲酸乙酯。 本么明以貫施例說明如上，然其並非用以限定本 《月所，張之專利權利範圍。其專利保護範圍當視後 附=申請專利額及其等同領域而定。凡本領域具有 通系♦識者在不脫離本專利精神或範圍内，所作之 更動或潤飾，均屬於本發明所揭示精神下所之 效改變或設計，且應包含在下述之中請專利範圍内。 【圖式簡單說明】 201109708 圖1所繪示為增亮膜的前視圖。 圖2所繪示為本發明之光學膜片的第一實施例。 圖3所繪示為第一實施例的光學膜片之製造流程圖。 圖4A所繪示為本實施例之光學膜片的製造設備之前半部 份。 圖4B所繪示為本實施例之光學膜片的製造設備之後半部 份。 【主要元件符號說明】 <先前技術> 110 :增亮膜 111 :基板 112 :結構層 113 :入射面 L,： 光線 實施方式> 200 :光學膜片 210 :本體層 212 :第一微結構 220 :硬化層 S310〜S390 :流程圖步驟 201109708 81a :閥門 410 :基底膠 411 :容器 412 :離型膜釋放輪 413 :離型膜 414、417、418 :輔助輪 416a〜416b:第一光源 510 :成型膠 515 :滾輪 515a :表面 516a〜516d:第二光源 519 :熱管 520 :產品收納輪Since the optical film of the present invention has a hardened layer, the body layer of the optical film can be prevented from being scratched, and the hardened layer can also increase the strength of the optical film. The above-mentioned objects, features, and advantages of the present invention will become more apparent from the following detailed description. Shown as a yoke example of the optical film of the present invention. The optical film 200 includes a body layer 210 and a hardened layer 22', wherein the surface of the 11 layer 210 includes a plurality of first-micro structures 212, and is hardened. The layer 220 is disposed under the body layer 2ω. In addition, the body layer is mainly hardened by a molding gel, and the molding glue is mainly made by a photohardening tree: 1% to 5%. Further, the hardened layer 220 is mainly composed of a hard (10) fat mi hardened layer 220 mainly composed of a solid component. The light hardening is formed, and the photohardening resin is an ultraviolet curing resin. In this example, those skilled in the art can adjust the hardened layer 220 between a hard 201109708 degree 1H and a hardness of 9H. Among them, the photocurable resin means that it is hardened when it is irradiated with light of a certain wavelength range. In the present embodiment, the photohardenable resin is a cremation line hardening resin, that is, it is hardened when it is irradiated with a purple line. The cremation line hardening resin is widely used because of its good toughness, easy forming and convenient processing, and is mainly composed of an oligomer (Oligomer) in which a reactive diluent monomer (Reactive monomer) can be added. And a photo initiator or the like to increase its properties and reaction rate. The main component of the purifying line hardening resin used in the present invention is a polyester acrylic oligomer, an epoxy acrylate oligomer or an acrylic oligo acrylate (Epoxy acrylic oligomer). Polyurethane acrylic oligomer). Those skilled in the art can formulate the proportions of the constituent components of the vitrified hardening resin as needed to achieve the desired properties. For example, the crepe line hardening resin used to make the hardened layer is different from the cremation line hardening resin in the body layer. The creped line hardening resin used for the hardened layer has high toughness and strength after hardening, so the hardened layer 220 has a function of abrasion resistance and scratch resistance. The shape of the first microstructure 212 is a prismatic column shape, so that when the light passes through the first microstructure 212, convergence occurs to achieve the effect of collecting light. Of course, those skilled in the art can also design the first microstructure 212 into other shapes, such as a lenticular shape, a pyramid shape, or the like, which can achieve a condensing effect, or can be designed as a semi-spherical shape, a groove shape, or the like. The shape that can achieve the diffusion effect. Hereinafter, a method of fabricating the optical film 200 of the first embodiment will be described. Referring to Fig. 3, Fig. 3 is a flow chart showing the manufacture of the optical film of the first embodiment. First, step S310 is performed to provide 201109708 for a base rubber which is mainly composed of a photocurable resin which is a raw material of the hardened layer 220 in Fig. 2. In the present embodiment, the photo-curing resin is an ultraviolet curable resin and the solid content is 100% β. Please refer to FIG. 3 and FIG. 4A simultaneously. FIG. 4A illustrates the first half of the manufacturing apparatus of the optical film of the present embodiment. . The base rubber 410 is stored in a container 411 having a valve 81a. Further, step S32 is performed to apply the base rubber 410 onto a release film 413. When the valve 81a is opened, the base rubber 410 flows onto the release film 413 via the valve 81a. The release film 413 is made of a transparent material such as polyethylene terephthalate, stretched polypropylene or other transparent material that does not bridge the base adhesive 410. Further, the upper surface of the release film 413 is coated with a lightweight adhesive so that the base rubber 410 adheres to the release film 413 and is transported forward. The release film 413 is released by a release film release wheel 412 and is moved forward by the pulling force of the auxiliary wheels 414, 417, 418. It should be noted that, in addition to the function of driving the release film 413, the auxiliary wheels 414, 417, and 418 can also support the release force of the release film 413 by the auxiliary wheels 414, 417, and 418. The function of the film 413 is to prevent the base rubber 410 on the release film 413 from being deformed by its own weight. In step S330, light emitted by the first light sources 416a to 416b, for example, ultraviolet light, is irradiated onto the base rubber 41 to harden the base rubber. Referring to FIG. 3 and FIG. 4B simultaneously, FIG. 4B illustrates the latter part of the manufacturing apparatus of the optical film of the present embodiment. Next, in step S340, a molding gel 51 is applied to the cured base rubber. The molding adhesive 510 is mainly formed by mixing a photo-curing resin and a thermosetting grease, wherein the thermosetting grease is formed relative to the first molding. The overall weight of the glue 201109708 is about 1% to 5%. Further, in step S350, the roller 515 is rolled on the molding compound 51. The surface 515a of the impurity 515 has an embossed pattern (not shown). In the embodiment, the embossed pattern is a micro structure that is recessed inward. When the roller 5i5 is rolled over the molding compound 510, the printed pattern on the roller 515 is transferred to the molding 510, and a plurality of first microstructures 212 are formed on the molding adhesive 51. In step S360, the light emitted by the second light sources 516a to 516d, for example, ultraviolet light, is irradiated onto the molding paste 51. In the present embodiment, step S350 and step S360 are performed simultaneously. After the step S36 is completed, the step S370' is followed by the molding of the glue 51 to be transferred to a heat pipe 519. The field molding compound 510 is hardened by the irradiation of the second light sources 516a to 516d and the heating of the heat pipes. In this embodiment, step S370 is performed after step S360 is completed, but steps S360 and S370 can be performed simultaneously, and the heat pipe 519 can be changed to other types of heating sources, for example, by wind heating. The mold is dried at 51 成型. In addition, those skilled in the art may not provide any heating source because the second light source 516a 516d itself emits a light-radiating heat which can heat the molding glue. After the step S360 and the step S370, the hardened molding compound 51〇 and the base rubber 410 are combined with each other to form a mother optical film. Thereafter, in step S380, the mother optical film is housed on a product storage wheel 52A. Of course, the person having ordinary knowledge in the art can also design the product storage wheel 520 into another type of product storage device, as long as the mother optical film can be stored. 201109708 Then, in step S390, the mother optical film wound around the product storage wheel 52A is removed and divided into a plurality of optical films 200 as shown in Fig. 2A. At this time, the release film is attached to the lower side of the optical film 2〇〇, and since the release film 413 and the optical film 200 are only combined by a lightweight adhesive, only a slight force is applied. You can tear it away. When =, it is considered that the optical film 200 may be contaminated by the external environment during transportation or storage, so that the release film 4 can be peeled off when the optical film 2 is to be used. Moreover, during handling or storage, the upper surface of the optical film 2 can be additionally coated with a protective film to protect the first microstructure 212 thereon. Here, the material of the molding compound 510 described above will be described in more detail. The molding gel 510 is a mixture of a photocurable resin and a thermosetting resin. The photocurable resin means that it is hardened when subjected to the light of the stage surface. In the present embodiment, the photohardenable resin is a creped line hardening gel, that is, it is hardened when it is subjected to a purple line county. Further, the thermosetting grease is, for example, polyester or polyurethane. This is a description of the above examples, but it is not intended to limit the scope of this patent. The scope of patent protection is subject to the attached patent application amount and its equivalent. Any changes or modifications made by those skilled in the art without departing from the spirit or scope of the present invention are subject to the effects or design of the present invention and should be included in the following patents. . [Simple description of the schema] 201109708 Figure 1 is a front view of the brightness enhancement film. Figure 2 illustrates a first embodiment of an optical film of the present invention. FIG. 3 is a flow chart showing the manufacture of the optical film of the first embodiment. Fig. 4A shows the first half of the apparatus for manufacturing an optical film of the present embodiment. Fig. 4B shows the latter half of the manufacturing apparatus of the optical film of the present embodiment. [Major component symbol description] <Prior Art> 110: Brightening film 111: Substrate 112: Structure layer 113: Incident plane L,: Light embodiment> 200: Optical film 210: Body layer 212: First micro Structure 220: Hardened layer S310~S390: Flow chart step 201109708 81a: Valve 410: Base glue 411: Container 412: Release film release wheel 413: Release film 414, 417, 418: Auxiliary wheels 416a to 416b: First light source 510: molding glue 515: roller 515a: surface 516a to 516d: second light source 519: heat pipe 520: product storage wheel
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