201000945 1 yy -ru 九、發明說明： 【發明所屬之技術領域】 *本發明是㈣於-種具抗反射和抗眩功能的光學薄 膜及其製造方法，且特別是有關於一種適用於顯示裝置之 •顯不屏幕上的抗反射抗眩光學薄膜及其製造方法。 【先前技術】 ”之產==光電顯示科技不斷地進步，使得應用其 之產員域持續擴大。其甲又以應用其之行 型電腦和薄型化的顯示襄置，比 忽視的潛力市場。相應地，隨著料產不谷 對於顯示品質之要求也將曰益嚴^產㈣漸地普及化， 在顯示品質之評估上，除了解晰度、亮度 視角度等-般的參考依據& 〇 :相當重要。為了達到抗眩和及抗反能也 係在顯示屏幕的最外表面上設置_層二=的做法 迭賴抑制外界光線和背光模組光線所 &成的不良視覺效果，進而提 輯所 在傳統的製造過程中，抗眩層和抗反射;二而’ 液和烘烤塗液之步驟而完成。所以’ “生翌塗佈塗 會分別施以兩次塗佈塗液之步驟和兩次步至少 驟。但也因為這種製造過程之步驟 之步 而導致生產效率無法提高、生產成本無法;π法： 201000945 升產品競爭力。 【發明内容】 本發明係有關於一種抗反射抗眩光學薄膜及其努造 • 方法’係利用低折射率之含氟樹脂基底與奈米粒子聚集組 成之團聚子互相混掺後塗佈於硬鍍層上。如此，可藉由奈 米粒子與低折射率之含氣树月曰基底之間的搭配，而同時達 到抗眩和抗反射之效果。另外，由於樹脂基底含有敦素之 單元，故光學薄膜不僅具有抗眩和抗反射之效果，更能提 供抗指紋之特性。 本發明提出一種光學薄膜，其包括一基材、一硬鍍層 和一抗反射抗眩塗層。硬鍍層係形成於基材上，抗反射抗 眩塗層係形成於硬鍍層上。抗反射抗眩塗層具有一凹凸表 面’其表面粗糙度（roughness)大於等於8〇mn。抗反射抗眩 塗層包括一低折射率之含氟樹脂基底及數個團聚子。團聚 ζ 5子係77政且包覆於含氟樹脂基底内，並使含氟樹脂基底之 上表面突起’以形成抗反射抗眩塗層之凹凸表面，每一團 聚子係由至少二個奈米粒子聚集堆積組成。 本發明更提出一種光學薄膜之製造方法，其包括下列 步驟。首先，提供一基材。然後，形成一硬鍍層於基材上。 接著，配製（preparing)—抗反射抗眩塗液。在配製塗液之 步驟中包括提供-低折射率之含氟樹脂基底並添加數個 f米粒子於含氣则旨基底，以及混合這些奈米粒子與含氣 树脂基底，而形成數個團聚子分散於含就樹脂基底中，每 7 201000945 *» 'τν/ i/i / i 一團聚子係由至少一個奈米粒子聚集而成。之後，塗佈抗 反射抗眩塗液於硬鍍層上。 為讓本發明之上述内谷砲更明顯易懂，下文特舉車交佳 實施例，並配合所附圖式，作詳細說明如下： • 【實施方式】 本發明係揭露一種抗反射抗眩光學薄膜，其至少包括 一抗反射抗眩塗層。當此光學薄膜應用於顯示裝置之顯示 €屏幕上時可藉由抗反射抗眩塗層來使光線擴散並降低 光反射率（reflectivity) ’以抑制外界光線和背光模組光線所 造成的不良視覺效果，進而提供良好的顯示品質。 在以下說明中，光學薄膜係以應用於液晶顯示 顯示屏幕上為例做說明。然而，具通常知識者當知^本發 明不僅以液晶顯示裝置之應用為限，亦可適用於任何一種 顯示屏幕上，比如映像管顯示裝置、電聚顯示裝置、内投 I顯7F裝置等之顯不屏幕上。並且，在實際應用時，以 下》兄明所提供之製程參數與步驟細節，係可依照應用條件 之需要作適度之調整。 <較佳實施例> 一，本發明之一較佳實施例中，光學薄膜係應用於液晶 顯示裝置之顯示屏幕上，故光學薄膜較佳地係與液晶顯示 裝置之面向外部的偏光板結合。而，目前市面上泛用的偏 光板，通常係由二層三醋酸纖維素（triacetyl cellulose，TAC) 8 201000945 夾著聚乙烯醇(Polyvinyl alcoho卜PVA)所構成。由於，三 醋馱纖維素疋—種光穿透度（transmission)佳但表面硬度軟 的材負，故在本實施例的做法上，係先在偏光板之面向外 部的二醋酸纖維素層上形成一硬鍍層，以補強表面硬度之 後’再形成—抗反射抗眩塗層於硬鍍層上。 換言之’本實施例之光學薄膜為了與偏光板做結合， 車父佳地係以偏光板之面向外部的材質作為基材。並且，為 了增強液晶顯示屏幕之最外表面的硬度，較佳地係先於基 材上形成一硬鍍層後，再形成一抗反射抗眩塗層。 在基材之材質的選擇上，除了前述之三醋酸纖維素 (TAC)以外’例如可以是聚對苯二甲酸乙脂（p〇iyethylene terephthalate，PET)、二乙快纖維素、乙酸丁酸纖維素、 聚醚颯、聚丙烯酸系樹脂、聚胺基甲酸酯系樹脂、聚酷、 聚碳酸酯聚砜、聚醚、聚曱基戊醯、聚醚酿I或曱基丙稀酸 晴，但本發明並不侷限於此，亦可依應用條件所需選擇更 適之材料。 在硬鍍層之材質的選擇上’較佳地包括一紫外光硬化 型樹脂，其例如是選自於丙烯酸樹脂、聚酯樹脂、聚越樹 脂、環氧樹脂、胺基曱酸酯樹脂、醇酸樹脂、螺環縮駿樹 脂、聚硫醇聚烯樹脂或聚丁二烯樹脂之紫外光硬化型樹 脂，但本發明並不侷限於此，亦可依應用條件所需選择更 適之材料。 以下將搭配第1圖及第2圖來說明本實施例之光學| 膜之結構及製造方法。第1圖係繪示依照本發明較佳實^ 9 201000945 例之光學薄膜的示意圖，第2圖係繪示依照本發明較佳實 施例之光學薄膜的製造方法的流程圖。如第1圖所示之光 學薄膜100的製造方法包括下列步驟。 首先，如步驟S1所示，提供一基材110。基材110 之材質例如為前述之列舉。 然後，如步驟S2所示，形成一硬鍍層120於基材110 上。在步驟S2之中，例如係先塗佈一硬鍍層塗液於基材 110上之後，再施以紫外光照射，以使硬鑛層塗液硬化而 ' ' 形成硬鍍層120。硬鍍層塗液例如為前述之列舉。 接著，如步驟S3所示，配製一抗反射抗眩塗液。在 步驟S3之中，可以包括下列子步驟。首先，提供低折射 率之含氟樹脂基底132，並添加數個奈米粒子135於含氟 樹脂基底132。接著，混合奈米粒子135與含氟樹脂基底 132,而形成數個團聚子134分散於含氟樹脂基底132中。 其中，每一團聚子134係由至少二個奈米粒子135聚集而 成。 V 由於此抗反射抗眩塗液係用以抗反射和抗眩，故在含 氟樹脂基底132與奈米粒子135之材質的選擇上，較佳地 須符合下列條件。其一，含氟樹脂基底132之折射率較佳 地係小於等於1.50%。其二，奈米粒子135之折射率與含 氟樹脂基底132之折射率的差值較佳地係介於0.01%至 0.2%之間。 具體而言，含氟樹脂基底132可以是一種含有氟素單 元的有機高分子樹脂、矽氧烷聚合物或有機無機混成樹 201000945 脂，其氟素單元例如A cf2基等，但本發明並不偈限於此。 奈米粒子135可以選自於壓克力系聚合物、聚苯乙烯 系聚合物、壓克力與聚苯乙稀之共聚物、聚碳酸醋及無機 石夕氧化物中之至少-者’但本發明並不侷限於此。 在-實施例之步驟S3中，相對於取1〇〇重量份之含 氣樹脂基底m日寺，係添加（u幻〇重量份之夺米粒子 135,所形成之團聚子134的平均粒㈣圍介於5〇謹至 15〇nm之間。 之後，如步驟S4所示，將步驟S3所配製之抗反射抗 眩塗液塗佈於硬㈣上。在步驟以中，為了使後續 形成的抗反射抗眩塗層13G具有較佳的抗反射效果，即旦 有較低的反射率，例如可以則線棒塗佈的方式，來控制 塗佈膜厚。但除了線棒塗佈的方式之外，本發明亦適用其 ::用的塗佈方式’故本發明係不對塗液的塗佈方式多作 以如步驟S5所示’料乾燥抗反射抗眩塗液， :凹凸表面13〇5的抗反射抗眩塗層130於硬鍍層 上川上0 膜二驟：之中’所形成之抗反射抗眩塗層㈣之乾 且包；於含氟：1至12〇_。且，由於團聚子134係分散 包覆於^樹脂基底132π ’故 的上表面突起，而形成凹凸表 ：：樹月曰基底132 等於80nm。 〇s ’其表面粗糙度大於 如此 來，當外界⑽和背^^光線人射光學薄膜 201000945 100時，抗反射抗眩塗層130之低折射率之含氟樹脂基底 132和奈米粒子135之團聚子134將能發揮抗光線反射與 造成光線擴散之效果。 其中，在造成光線擴散之效果上，一般係以霧度（haze) 作為評估的依據。而，由於提高霧度係會使得清晰度 (optical clarity)降低。故以市面上泛用的光學薄膜而言， 當霧度為10時清晰度僅為200左右，而當霧度為30時清 晰度僅剩下20〜30左右。 以本發明實施例而言，霧度的調整係可以藉由改變步 驟S3中奈米粒子之添加量（重量份）來完成。並且，在本發 明實施例中，係可以利用低折射率之樹脂基底與奈米粒子 之間的折射率搭配，使霧度於提高的同時，讓清晰度不致 大幅降低。經量測，在霧度介於5至50之間時，本發明 實施例之光學薄膜的清晰度係提升至490至350之間。由 此可知，相較於市面上泛用的光學薄膜，本發明實施例之 光學薄膜能提供更佳的顯示品質。而且，經多次實驗後發 現，依照本發明較佳實施例之方法所製造之光學薄膜，其 霧度調整於10至30之間時，清晰度係可以接近至480至 450之間。因此，相較於市面上泛用的光學薄膜，本發明 實施例之光學薄膜在提高霧度時亦可維持良好的清晰度。 此外，在液晶顯示裝置的應用上，本發明實施例之光 學薄膜100具有消除閃點現象（sparking)的優點。液晶顯示 裝置閃點現象的成因係因傳統抗眩光膜材所使用之粒子 較大，使表面光偏折較多，造成次晝素之少部分光線偏折 12 201000945 至其相鄰之次晝素，進而導致微細閃點發生。簡而言之， 當光偏折越多，閃點現象就越明顯。由於本發明實^例之 光學薄膜100係使用由奈米粒子135所聚集而成的團聚子 134 ’因此光偏折現象不明顯，較不易有閃點現象的產生。 另外，因為本發明實施例使用之低折射率基底含有氟 素單元，故除了能提供更佳的顯示品質之外，還可以使光 學薄膜的表面具有抗指紋之特性。 <實驗例與比較例> 以下提供二組實驗例與二組比較例來做詳細說明，並 可作為熟習此領域者據以實施之參考。依照實驗例與比較 例所製成之光學薄膜’其霧度、穿透度、粗糙度、2射率 及清晰度之相關數值與抗指紋程度，係彙整列於表一。然 而具通常知識者當知，製備過程中所選用之材料與步驟細 節僅為說明之用’並非用以限制本發明之範圍。且，在實 際應用時，各參數應依照應用條件之需要作適度之調整。 <實驗例1> 首先，取100重量份的紫外光硬化樹脂（B_500SF，201000945 1 yy -ru Nine, invention description: [Technical field of invention] * The present invention is (d) an optical film having anti-reflection and anti-glare functions and a method of manufacturing the same, and particularly relates to a display device • Anti-reflective anti-glare optical film on the screen and its manufacturing method. [Previous technology] "Production == Optoelectronic display technology continues to advance, making the application of its production area continue to expand. Its A is also using its line of computers and thin display display, than the potential market. Correspondingly, with the requirement of display quality, the quality of the product will be more and more favorable. (4) Gradually popularize, in addition to understanding the clarity, brightness and angle of view, etc. 〇: It is very important. In order to achieve anti-glare and anti-anti-energy, it is also necessary to set the _ layer two = on the outermost surface of the display screen to suppress the bad visual effects caused by the external light and the backlight module light. In addition, in the traditional manufacturing process, the anti-glare layer and anti-reflection; and the 'liquid and baking coating liquid steps are completed. So 'the raw coating coating will be applied twice to apply the coating liquid Steps and two steps at least. However, because of the steps of this manufacturing process, the production efficiency cannot be improved, and the production cost cannot be achieved; the π method: 201000945 liters product competitiveness. SUMMARY OF THE INVENTION The present invention relates to an anti-reflective anti-glare optical film and a method for the same, which utilizes a low-refractive-index fluororesin substrate and agglomerates composed of aggregates of nanoparticles to be mixed with each other and then coated on a hard On the plating. In this way, the anti-glare and anti-reflection effects can be achieved by the combination of the nano particles and the low refractive index gas-containing tree base. In addition, since the resin substrate contains a unit of Duncan, the optical film not only has anti-glare and anti-reflection effects, but also provides anti-fingerprint properties. The present invention provides an optical film comprising a substrate, a hard coat layer and an anti-reflective anti-glare coating. The hard plating layer is formed on the substrate, and the anti-reflection anti-glare coating layer is formed on the hard plating layer. The anti-reflective anti-glare coating has a concave-convex surface having a surface roughness of 8 〇 mn or more. The antireflective anti-glare coating comprises a low refractive index fluororesin substrate and a plurality of agglomerates. The agglomerated ζ 5 sub-system is coated and coated in the fluororesin substrate, and the surface of the fluororesin substrate is raised to form an uneven surface of the anti-reflective anti-glare coating, and each agglomerate is composed of at least two The rice particles are aggregated and composed. The present invention further provides a method of producing an optical film comprising the following steps. First, a substrate is provided. A hard coating is then formed on the substrate. Next, a preparing-anti-reflective anti-glare solution is prepared. In the step of preparing the coating liquid, the method comprises the steps of: providing a low refractive index fluorine-containing resin substrate and adding a plurality of f-meter particles to the gas-containing substrate, and mixing the nano particles with the gas-containing resin substrate to form a plurality of agglomerates. Dispersed in a resin-containing substrate, every 7 201000945 *» 'τν/ i/i / i agglomerates are aggregated from at least one nanoparticle. Thereafter, an anti-reflective anti-glare coating was applied to the hard coating. In order to make the above-mentioned inner-barrel gun of the present invention more obvious and easy to understand, the following is a detailed description of the preferred embodiment of the vehicle, and the following is a detailed description of the following: • [Embodiment] The present invention discloses an anti-reflective anti-glare optical. A film comprising at least one anti-reflective anti-glare coating. When the optical film is applied to the display screen of the display device, the anti-reflective anti-glare coating can be used to diffuse the light and reduce the light reflectivity to suppress the poor vision caused by the external light and the backlight module. The effect, in turn, provides good display quality. In the following description, an optical film is applied to a liquid crystal display display screen as an example. However, it is known to those skilled in the art that the present invention is not limited to the application of the liquid crystal display device, and can be applied to any display screen, such as a video tube display device, an electro-polymer display device, an internal projection I-display device, and the like. Not shown on the screen. Moreover, in practical applications, the process parameters and step details provided by Xiong Ming are adjusted according to the application conditions. <Preferred Embodiment> 1. In a preferred embodiment of the present invention, an optical film is applied to a display screen of a liquid crystal display device, so that the optical film is preferably an externally facing polarizing plate of the liquid crystal display device. Combine. However, the polarizing plates currently widely used in the market are usually composed of two layers of triacetyl cellulose (TAC) 8 201000945 sandwiched between polyvinyl alcohol (Polyvinyl alcoho PVA). Since the triacetin cellulose 疋--the light transmittance is good but the surface hardness is negative, the method of the present embodiment is first on the outward facing cellulose diacetate layer of the polarizing plate. A hard coating is formed to re-form the surface toughness and then form an anti-reflective anti-glare coating on the hard coating. In other words, in order to bond with the polarizing plate, the optical film of the present embodiment uses the material facing the outside of the polarizing plate as a substrate. Further, in order to enhance the hardness of the outermost surface of the liquid crystal display screen, it is preferred to form an anti-reflective anti-glare coating after forming a hard plating layer on the substrate. In the selection of the material of the substrate, in addition to the aforementioned cellulose triacetate (TAC), for example, it may be polyethylene terephthalate (PET), diphenyl fast cellulose, butyric acid butyrate fiber. , polyether oxime, polyacrylic resin, polyurethane resin, poly cool, polycarbonate polysulfone, polyether, polydecyl pentylene, polyether brewing I or mercapto acrylate However, the present invention is not limited thereto, and a more suitable material may be selected depending on the application conditions. The selection of the material of the hard plating layer preferably includes an ultraviolet curable resin selected from, for example, an acrylic resin, a polyester resin, a poly-resin resin, an epoxy resin, an amino phthalate resin, and an alkyd. The ultraviolet curable resin of the resin, the spiro resin, the polythiol polyolefin resin or the polybutadiene resin, but the present invention is not limited thereto, and a more suitable material may be selected depending on the application conditions. The structure and manufacturing method of the optical film of this embodiment will be described below with reference to Figs. 1 and 2 . 1 is a schematic view showing an optical film according to a preferred embodiment of the present invention, and FIG. 2 is a flow chart showing a method of manufacturing an optical film according to a preferred embodiment of the present invention. The method of manufacturing the optical film 100 as shown in Fig. 1 includes the following steps. First, as shown in step S1, a substrate 110 is provided. The material of the substrate 110 is, for example, the above. Then, as shown in step S2, a hard plating layer 120 is formed on the substrate 110. In step S2, for example, a hard coating liquid is applied onto the substrate 110, and then irradiated with ultraviolet light to harden the hard ore layer coating liquid to form the hard plating layer 120. The hard coating liquid is, for example, the above-listed. Next, as shown in step S3, an anti-reflective anti-glare solution is prepared. In step S3, the following sub-steps may be included. First, a fluorine resin substrate 132 having a low refractive index is provided, and a plurality of nano particles 135 are added to the fluorine-containing resin substrate 132. Next, the nanoparticle 135 and the fluorine-containing resin substrate 132 are mixed, and a plurality of agglomerates 134 are formed and dispersed in the fluorine-containing resin substrate 132. Each of the agglomerates 134 is formed by agglomeration of at least two nanoparticles 135. Since the anti-reflective anti-glare coating liquid is used for anti-reflection and anti-glare, it is preferable to select the following conditions in the selection of the material of the fluorine-containing resin substrate 132 and the nanoparticle 135. First, the refractive index of the fluorine-containing resin substrate 132 is preferably 1.50% or less. Second, the difference between the refractive index of the nanoparticle 135 and the refractive index of the fluororesin-containing substrate 132 is preferably between 0.01% and 0.2%. Specifically, the fluorine-containing resin substrate 132 may be an organic polymer resin containing a fluorine unit, a siloxane polymer or an organic-inorganic hybrid tree 201000945, and a fluorine unit such as an A cf2 group, etc., but the present invention does not偈 is limited to this. The nanoparticle 135 may be selected from at least one of an acrylic polymer, a polystyrene polymer, a copolymer of acrylic and polystyrene, a polycarbonate, and an inorganic cerium oxide. The invention is not limited to this. In the step S3 of the embodiment, the average particle of the formed agglomerate 134 is added to the gas-containing resin substrate m. Between 5 〇 and 15 〇 nm. Thereafter, as shown in step S4, the anti-reflective anti-glare solution prepared in step S3 is applied to the hard (four). In the step, in order to make the subsequent formation The anti-reflective anti-glare coating 13G has a better anti-reflection effect, that is, a lower reflectance, for example, a wire bar coating method to control the coating film thickness, but in addition to the wire bar coating method In addition, the present invention is also applicable to: the coating method used. Therefore, the present invention does not apply the coating liquid to the coating material as shown in step S5. The anti-reflection anti-glare coating liquid is: the uneven surface 13〇5 The anti-reflective anti-glare coating 130 is on the hard coating layer. The anti-reflective anti-glare coating (4) is formed by the dry film and is contained in the fluorine-containing layer: 1 to 12 〇 _. The sub-134 is dispersed and coated on the upper surface of the resin substrate 132π', thereby forming a concave-convex table:: a tree basement 132, etc. 80nm. 〇s 'The surface roughness is greater than this. When the outside (10) and the back light are used to illuminate the optical film 201000945 100, the low refractive index fluororesin substrate 132 and nano particles of the anti-reflective anti-glare coating 130 The 135 agglomerate 134 will be able to resist light reflection and cause light to diffuse. Among them, the haze is used as the basis for evaluation in terms of the effect of light diffusion. The optical clarity is reduced. Therefore, when the optical film is widely used in the market, the sharpness is only about 200 when the haze is 10, and only about 20 to 30 when the haze is 30. In the embodiment of the present invention, the adjustment of the haze can be accomplished by changing the addition amount (parts by weight) of the nanoparticles in the step S3. Also, in the embodiment of the present invention, the resin having a low refractive index can be utilized. The refractive index combination between the substrate and the nano particles enables the haze to be improved while the sharpness is not greatly reduced. The optical film of the embodiment of the invention is measured when the haze is between 5 and 50. Sharpness It is improved to between 490 and 350. It can be seen that the optical film of the embodiment of the present invention can provide better display quality than the optical film widely used in the market. Moreover, after many experiments, it is found that according to the present invention The optical film produced by the method of the preferred embodiment has a haze adjusted between 10 and 30, and the sharpness can be as close as 480 to 450. Therefore, compared with the optical film generally used in the market, The optical film of the embodiment of the invention can also maintain good sharpness when the haze is improved. Further, in the application of the liquid crystal display device, the optical film 100 of the embodiment of the invention has the advantage of eliminating the sparking phenomenon. The cause of the flash point phenomenon of the device is that the particles used in the traditional anti-glare film are larger, which causes the surface light to be deflected more, causing a small part of the light of the secondary sputum to deflect 12 201000945 to its adjacent sub-halogen, which leads to A fine flash point occurs. In short, the more the light deflects, the more obvious the flash point phenomenon. Since the optical film 100 of the embodiment of the present invention uses the agglomerates 134' formed by the aggregation of the nanoparticles 135, the optical deflection phenomenon is not remarkable, and the occurrence of a flash point phenomenon is less likely to occur. Further, since the low refractive index substrate used in the embodiment of the present invention contains a fluorine unit, in addition to providing better display quality, the surface of the optical film can have an anti-fingerprint property. <Experimental Example and Comparative Example> Two sets of experimental examples and two sets of comparative examples are provided below for detailed description, and can be referred to as a reference for those skilled in the art. The values of the haze, the penetration, the roughness, the two-shot ratio and the sharpness and the degree of anti-fingerprint of the optical film produced by the experimental examples and the comparative examples are summarized in Table 1. However, it is apparent to those skilled in the art that the materials and steps selected for use in the preparation are merely illustrative and are not intended to limit the scope of the invention. Moreover, in actual application, each parameter should be adjusted appropriately according to the needs of the application conditions. <Experimental Example 1> First, 100 parts by weight of an ultraviolet light curing resin (B_500SF,
Shin-Nakamura Chemical 製造），並以丁酮（methyl ethyl ketone ’ MEK)溶劑稀釋成固含量約5〇%之塗液。接著， 以線棒塗佈塗液於三醋酸纖維素基材(FUH製造）上，並置 於80°C循環烘箱中乾燥約1分鐘左右。之後，施以能量約 為540mJ/cm2之紫外光照射後，即完成一硬鍵層，其乾膜 13 201000945 厚度約為5//m至6#πι。 再來，取10重量份的低折射率之含氟樹脂基底 (LR-204-33A，RI(Refractive Index)值為 1.38，Nissan chemical Co. Ltd製造），並添加0.2重量份之無機二氧化 石夕的奈米粒子（KEP-1 〇 ’ RI值為1.43，Nippon Shokubai製 造）。接著，在室溫下攪拌約1小時後，以線棒塗佈塗液於 前述製備完成的硬鍍層上，並置於90°C烘箱中纟共_ 1〇Shin-Nakamura Chemical Co., Ltd., and diluted with a methyl ethyl ketone 'MEK solvent to a coating liquid having a solid content of about 5 %. Next, the coating liquid was applied on a cellulose triacetate substrate (manufactured by FUH) with a wire bar, and dried in a circulating oven at 80 ° C for about 1 minute. Thereafter, after irradiation with ultraviolet light having an energy of about 540 mJ/cm2, a hard key layer is completed, and the dry film 13 201000945 has a thickness of about 5//m to 6#π. Further, 10 parts by weight of a low refractive index fluororesin base (LR-204-33A, RI (Refractive Index) value of 1.38, manufactured by Nissan Chemical Co. Ltd.) was added, and 0.2 part by weight of inorganic silica was added. The nanoparticles of the eve (KEP-1 〇' RI value is 1.43, manufactured by Nippon Shokubai). Then, after stirring at room temperature for about 1 hour, the coating liquid was applied onto the hard-coated layer prepared by the above-mentioned wire rod, and placed in an oven at 90 ° C for a total of _ 1 〇
時’即完成實驗例1之抗反射抗眩塗層，其乾膜 lOOnm。 <實驗例2> 錢層於 首先’以與實驗例1相同的方式，形成—石更 醋酸纖維素基材上。 再來，以與實驗例1相同的方式，形成一抗 5 塗層於硬鍍層上，但實驗例2之奈米粒子的添加曰射抗眩 重量份。 J、、σ量為〇 <比較例1> 首先，取100重量份的紫外光硬化樹脂⑴、 並以丁酮溶劑稀釋成固含量約5〇%之塗液。接著 F)， 重量份且平均粒徑約為3.5//m的氧化矽粒子加入1 製造）’並使氧化矽粗子分散於塗液中。然後，將J1、Sll%ia 於三醋酸纖維素基材上，並置於8〇t循 士塗液塗佈 分鐘左右。之後，施以能量約為540mJ/c 2 燥約1 <%外光照射 14 後，即完成比較例1之抗眩光學薄膜。 <比較例2> 首先，以與比較例1相同的方式，形成抗眩光學薄膜。 再來，將低折射率之樹脂基底（LR-204-33A)塗佈於抗 眩光學薄膜上，並控制其乾膜厚度約在lOOnm，以完成比 較例2之光學薄膜。 實驗例與比較例之測試結果係如下表1所示。在實施 例1中，其低反射率基底與奈米微粒之組合，可同時達成 抗反射與抗眩之效果，且因奈米微粒與低折射率之間的折 射率差，可使光學薄膜之清晰度與穿透度得以提高。在實 施例2中，增加奈米微粒之添加量，可使其霧度值相對地 增加，而其清晰度僅有些微下降。相較於實施例1與實施 例2，比較例1之抗眩塗層主要是由折射率差不多的硬鍍 層與微米級的二氧化石夕（Si〇2)構成，而比較例2則是在比 較例1之抗眩塗層上再塗佈抗反射層，這兩者不僅在外觀 細緻度上，且在清晰度與穿透度上，都不如實施例1與實 施例2的光學薄膜。 表1 霧度 穿透度 粗糙度 清晰度 抗指紋 效果 反射率 (550nm) 實驗例1 10.14 92.89% 130 nm 478 有 1.50% 實驗例2 20.13 93.27% 145 nm 445 有 1.40% 比較例1 10.31 89.97% 212 nm 272 益 1.49% 15 201000945 比較例2 10.60 90.82% 198 nm 285 有 1.32% 由此可知，本發明所揭露的抗反射抗眩光學薄膜具有 高霧度、高穿透度、低反射率及高清晰度的優點，而且還 具有抗指紋之效果（fingerprint wiping property)。 本發明上述實施例所揭露之抗反射抗眩光學薄膜及 其製造方法，係利用低折射率之含氟樹脂基底與奈米粒子 聚集組成之團聚子互相混摻後塗佈於基材上。如此，可藉 f 由奈米粒子與低折射率之含氟樹脂基底之間的搭配，來使 光線擴散並降低光反射率，以抑制外界光線和背光模組光 線所造成的不良視覺效果，進而提供良好的顯示品質。另 外，由於樹脂基底含有氟素單元，故除了能提供良好的顯 示品質之外，更能提供抗指紋之特性。 綜上所述，雖然本發明已以較佳實施例揭露如上，然 其並非用以限定本發明。本發明所屬技術領域中具有通常 知識者，在不脫離本發明之精神和範圍内，當可作各種之 更動與潤飾。因此，本發明之保護範圍當視後附之申請專 利範圍所界定者為準。 16 201000945 【圖式簡單說明】 第1圖繪示依照本發明較佳實施例之光學薄膜的示 意圖。 第2圖繪示依照本發明較佳實施例之光學薄膜的製 造方法的流程囷。 【主要元件符號說明】 100 :光學薄膜 11〇 :基材 120 :硬鍍層 13 0 :抗反射抗眩塗層 130s :凹凸表面 13 2 ·含氟樹脂基底 134 :團聚子 135 :奈米粒子 17The anti-reflective anti-glare coating of Experimental Example 1 was completed, and its dry film was 100 nm. <Experimental Example 2> The money layer was first formed on the cellulose acetate substrate in the same manner as in Experimental Example 1. Further, in the same manner as in Experimental Example 1, a primary anti-coating layer was formed on the hard plating layer, but the addition of the nanoparticles of Experimental Example 2 was carried out to suppress the anti-glare component. J, σ amount is 〇 <Comparative Example 1> First, 100 parts by weight of the ultraviolet curable resin (1) and diluted with a methyl ethyl ketone solvent to a coating liquid having a solid content of about 5 % by weight. Next, F), bismuth oxide particles having a weight fraction and an average particle diameter of about 3.5/m are added to 1 manufactured) and the cerium oxide coarse particles are dispersed in the coating liquid. Then, J1 and Sll%ia were placed on a cellulose triacetate substrate and placed in a coating of 8 〇t of a coating solution for about a minute. Thereafter, after applying an energy of about 540 mJ/c 2 and drying about 1 <% external light irradiation 14, the anti-glare optical film of Comparative Example 1 was completed. <Comparative Example 2> First, an anti-glare optical film was formed in the same manner as in Comparative Example 1. Further, a low refractive index resin substrate (LR-204-33A) was coated on the antiglare optical film, and its dry film thickness was controlled to be about 100 nm to complete the optical film of Comparative Example 2. The test results of the experimental examples and the comparative examples are shown in Table 1 below. In the first embodiment, the combination of the low reflectance substrate and the nanoparticle can simultaneously achieve anti-reflection and anti-glare effects, and the optical film can be made due to the difference in refractive index between the nanoparticle and the low refractive index. Sharpness and penetration are improved. In Example 2, by increasing the amount of addition of the nanoparticles, the haze value was relatively increased, and the sharpness was only slightly lowered. Compared with Example 1 and Example 2, the anti-glare coating of Comparative Example 1 was mainly composed of a hard-plated hard coat layer and a micron-sized silica dioxide (Si〇2), and Comparative Example 2 was The anti-glare coating of Comparative Example 1 was further coated with an anti-reflection layer, both of which were not in appearance fineness and inferior to the optical films of Examples 1 and 2 in terms of sharpness and transparency. Table 1 Haze penetration roughness Sharpness Anti-fingerprint effect Reflectance (550 nm) Experimental Example 1 10.14 92.89% 130 nm 478 1.50% Experimental Example 2 20.13 93.27% 145 nm 445 1.40% Comparative Example 1 10.31 89.97% 212 Nm 272 benefit 1.49% 15 201000945 Comparative Example 2 10.60 90.82% 198 nm 285 has 1.32% It can be seen that the anti-reflective anti-glare optical film disclosed in the present invention has high haze, high transparency, low reflectance and high definition. The advantage of degree, but also has the effect of fingerprint wiping property. The anti-reflection anti-glare optical film disclosed in the above embodiments of the present invention and a method for producing the same are obtained by blending a low-refractive-index fluorine-containing resin substrate with agglomerates of a nanoparticle-aggregated composition and then coating the same on a substrate. In this way, the light between the nano particles and the low refractive index fluorine resin substrate can be used to diffuse the light and reduce the light reflectance, thereby suppressing the adverse visual effects caused by the external light and the backlight module, thereby providing Good display quality. Further, since the resin substrate contains a fluorine unit, in addition to providing a good display quality, it is more resistant to fingerprints. In the above, the present invention has been disclosed in the above preferred embodiments, but it is not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. 16 201000945 [Schematic Description of the Drawings] Fig. 1 is a view showing an optical film according to a preferred embodiment of the present invention. Fig. 2 is a flow chart showing a method of manufacturing an optical film according to a preferred embodiment of the present invention. [Main component symbol description] 100 : Optical film 11〇 : Substrate 120 : Hard plating 13 0 : Anti-reflective anti-glare coating 130s : Concave surface 13 2 · Fluorinated resin substrate 134 : Aggregate 135 : Nanoparticles 17