201202737 六、發明說明： 【發明所屬之技術領域】 本發明乃係有關一種保護膜，尤指使用於平面液晶顯示器背 光模組中所廣泛採用之光學膜片之保護膜結構。 【先前技術】 按，現有的光學則、電子零件之運輸或加王，通常都會將 零件以>1狀包裝的狀態，而在運輸過程中為了防止零件被刮傷或 者被污染’表©的保護臈在光學則及電子零件的領域中是很廣 泛的被朝，該光學則於生賴造顧中，必須到潔淨程 度達到光學級的保護膜光學膜片之表面設置有眾多之光學微 結構’藉由鮮微結構可有效增加液晶顯示器的輝度，該光學膜 片於生產製造難巾必須朗卿雜度_光學㈣保護膜，、 才能有效地保護這些光學膜片的微結構與產品之良率，而保護膜 主要在光予則生產、加工及組裝的過程中，可以保護光學膜片， 以避免脆_絲㈣的正反兩面產絲傷。而目前之光學棱膜 片所使用之保顧多採用聚丙烯雙向延伸膜（脈巧⑷，並在 該延伸膜上塗佈上—顧克力（_觀是可熱_ (如醜i plastic)膠’由於該塗佈之黏著層為低分子，所以黏著強度範圍 、而被廣泛應用，然而，此種保護麟製造時，必須使用有機 冷劑將膠層塗佈至麵著層，此—製程並非環保製程，會產生異 味’脑須二讀烤加W去除械_，造減本之增加， 另，容易在光學膜片的微結構表面造成殘膠及污傷，且於撕膜時 201202737 應用於背光模組時，會有 亦會產生較高之靜電進而使該光學膜片 畫質品味不佳，造成不良率提高財良影塑。 ^於習知之賴職有上述之缺^是以，如何開發出— Γ確實賴絲則域結淑賴舶之保護級 保護膜’即為目前相_者亟待克服之課題所在。 【發明内容】201202737 VI. Description of the Invention: [Technical Field] The present invention relates to a protective film, and more particularly to a protective film structure of an optical film widely used in a backlight module of a flat-panel liquid crystal display. [Prior Art] According to the existing opticals, the transportation of electronic parts or the addition of kings, the parts are usually packaged in a shape of >1, and in order to prevent the parts from being scratched or contaminated during transportation, The protective enamel is widely used in the field of optics and electronic parts. The optics are in the process of dying, and must be provided with a large number of optical microstructures on the surface of the protective film optical film that is clean to the optical level. 'With the fresh structure, the brightness of the liquid crystal display can be effectively increased. The optical film must be processed in the production of difficult-to-wear _ optical (four) protective film, in order to effectively protect the microstructure and product of these optical films. The rate, while the protective film is mainly used in the process of production, processing and assembly, can protect the optical film to avoid the silky wound on both sides of the crispy wire. At present, the optical prism film used in the protection of the polypropylene biaxially stretched film (Pulse (4), and coated on the stretch film - Gu Keli (_ view is hot _ (such as ugly i plastic) glue' Since the coated adhesive layer is low in molecular weight, it is widely used in the range of adhesive strength. However, in the manufacture of such a protective liner, it is necessary to apply the adhesive layer to the facing layer by using an organic refrigerant, which is not environmentally friendly. The process will produce odors. 'Brain must be read twice and baked to remove the _, which will increase the thickness of the fabric. In addition, it will easily cause residual glue and stain on the microstructure surface of the optical film, and it will be applied to the backlight when the film is torn. 201202737 When the module is used, there will also be a high level of static electricity, which will make the optical film quality poor, which will result in a poor rate of improvement and good fortune. ^In the case of Xizhizhi, there is a lack of the above. Out — Γ 赖 赖 则 则 则 则 则 域 赖 赖 赖 赖 赖 赖 之 之 之 之 之 之 之 保护 保护 赖 赖 赖 赖 赖 赖 赖 赖 赖 赖 赖
發明之主要技術手段，一種光學膜片之保護膜，該保護膜 八主要具-非黏著層及—黏著層，該非黏著層及黏著層係以聚婦 類材料或_轉雜贿成，蹄料㈣轉後由押出機押 出’其中’該保護膜於成型後，隨即經過冷卻及回火之製程，使 保護膜能於不·度觀中_献寸之安，此外該非黏 著層及黏著層無須另行塗佈加工黏著層與離形材料，藉此可不需 使用溶劑以及二次加工，進而可達到環卿能之製程以及降低製 造成本之功效。 • 本發明之—人一技術手段，乃在提供一種光學膜片之保護膜， 該保制其主要具-赫著層及—黏著層，該非黏著層及黏著層 係以t烯類材料或熱塑性橡膠材料構成，該材料經過配料後由押 出機押出，其中，該保護膜之整體厚度範圍為·__，而 黏著層之厚度範圍為3阶97卵’該保護膜之黏著層接觸於光學 膜片微結構之表面時，會產生局部變形’且黏著層變形之深度會 小於黏著層之厚度，而變形之寬度係大於微結構之寬度，藉此可 達到提升貼附良率及易於撕除之功效。 201202737 本發明之另—技術手段，乃在提供—種光學膜片之保護膜， 該保細其主要具—非黏著層及—轉層，該非黏著層及黏著層 .係以兩種以上之聚稀類材料或醋酸乙烯類材料構成，該材料㈣ 配料後由押出機押出，該保護膜於成型後，隨即經過冷卻及回火 之製程’使保護觀於不同溫度環财確健尺寸之蚊性，其 中’該保制之整體厚度為仙卿丨叫m，該麵著層之厚度範 圍為4卿9〇卿其佔整體厚度比例為._，係以聚稀^ •料所製成，而黏著層之厚度範圍為4卿90卿，其佔整體厚度比 例為10%，％ ’係以醋酸乙烯所製成，且該黏著層對於光學^之 非結構面的黏著力係為HGg/25mm(;IS-Z-G237)，藉此可避免產 生殘膠現象’並可達到環保節能之製程以及降低製造成本之功效。 本發明之再-技術手段，乃在提供—種絲則之保護膜， 該保護膜其主要具-非黏著層及—黏著層，該非黏著層及黏著層 係以聚_材料或熱塑性橡膠材料構成，該材料經過配料後由押 _出機押出’其中，非黏著層更包含有—中間層及—表面層，且該 中間層中係可添加抗靜電劑和（或）有顏色之聚乙稀，藉此可達到 撕除保護膜時能防止靜電之產生，以及利用顏色作為保護膜之識 別性。 【實施方式】 為使貴審查魏更餘了解本個之結構及賴達成之功 效，茲配合圖式說明如后： 首先，請參觸-所示’本發明之保護膜〗至少包含有一非 201202737 黏著層11及一黏著層12。噹洮办益成， 、轉#者層11之材料係為兩種 «料分子材料顺成，此絲_高分子材料 置齡於画〜⑽咖之間，其比例範圍由1:11_ 子 黏著層12之材料為聚烯類高分子 而 ^ 于材科與可熱塑性橡膠材料所槿 聚烯類高分子材料分子量係介於10000〜10_之間’該可 熱塑性材料之分子量則介於___之間 料 性^内含有縣料_分子材料，該環苯料_分子= ^罝於可熱舰橡膠材料内係佔5%〜伽。上述之材料經過配料 系統後’會由押出機押出，並於押出機之模頭匯流成一體，當保 護膜1成形後’其非黏著層i i與黏著層丄2均_成形押出完 畢’且無須另行塗佈加轉著層與麵材料層，且雜護膜1經 過模頭押出成形後’隨即經過冷卻與回火製程，藉此，可確保在 不同溫度下，該髓膜i尺寸之安定性，㈣捲成卷料時，使其 經過不同階段之張力控制，以麵良好的卷·捲雜，成形後 之保護膜1之整體厚度範圍為20_〜1〇〇_，黏著層i 2厚度範 圍為3/zm〜97#πι，該非黏著層1 χ之厚度範圍為97//m〜3em，而 非黏著層1 1之表©層丨i i及中間層i i 2之厚度比例係介於 1:1〜1:100之間，其中，該表面層丄i丄之表面粗糙度係大於黏著 層1 2的表面粗糙度，並介於〇.1 〜2. Oem’而保護膜1之光學 霧度值（Haze，％) (JIS-K-7105)係介於10%〜80%之間。 本發明之保護膜於實施時，請參閱圖二所示，係將保護膜1The main technical means of the invention, a protective film for an optical film, the protective film has a non-adhesive layer and an adhesive layer, and the non-adhesive layer and the adhesive layer are formed by a poly-female material or a mixed bribe. (4) After the transfer, the extruder presses the 'inside' of the protective film, and then passes through the process of cooling and tempering, so that the protective film can be used in the view of the film, and the non-adhesive layer and the adhesive layer are not required. The adhesive layer and the release material are separately coated, thereby eliminating the need for solvent and secondary processing, thereby achieving the effect of the process of manufacturing and reducing the manufacturing cost. The invention provides a protective film for an optical film, which is mainly provided with an insulating layer and an adhesive layer, and the non-adhesive layer and the adhesive layer are t-based materials or thermoplastic. The rubber material is composed, and the material is extruded by an extruder, wherein the protective film has an overall thickness range of __, and the thickness of the adhesive layer ranges from 3 to 97 eggs. The adhesive layer of the protective film contacts the optical film. When the surface of the microstructure is deformed, local deformation will occur and the depth of the adhesive layer will be less than the thickness of the adhesive layer, and the width of the deformation is greater than the width of the microstructure, thereby improving the adhesion yield and the ease of tearing. . 201202737 Another technical means of the present invention is to provide a protective film for an optical film, which mainly has a non-adhesive layer and a transfer layer, and the non-adhesive layer and the adhesive layer are formed by two or more kinds. It is composed of a rare material or a vinyl acetate material. The material (4) is extruded by an extruder after the ingredient is formed. After the film is formed, it is subjected to a cooling and tempering process to protect the mosquitoes of different sizes. , wherein 'the overall thickness of the protection is Xianqing 丨 m m, the thickness of the face layer is 4 qing 9 〇 其 其 其 占 占 其 其 其 其 其 其 其 其 其 其 其 其 其 其 占 占 其 占 占 占 占 占 占 占 占 占 占The thickness of the adhesive layer is 4 qing 90 qing, which accounts for 10% of the overall thickness. The % ' is made of vinyl acetate, and the adhesion of the adhesive layer to the non-structural surface of the optical system is HGg/25mm ( ;IS-Z-G237), which can avoid the phenomenon of residual glue' and can achieve the process of environmental protection and energy saving and reduce the manufacturing cost. The re-technical method of the present invention provides a protective film for a silk fabric, which mainly has a non-adhesive layer and an adhesive layer, and the non-adhesive layer and the adhesive layer are composed of a poly-material or a thermoplastic rubber material. After the material is batched, it is extruded from the machine, wherein the non-adhesive layer further comprises an intermediate layer and a surface layer, and an antistatic agent and/or a colored polyethylene can be added to the intermediate layer. Thereby, it is possible to prevent the generation of static electricity when the protective film is peeled off, and to recognize the color using the color as a protective film. [Embodiment] In order to make the review of Wei Qianyu understand the structure of this structure and the effect of Lai Da, the following diagrams are followed: First, please refer to - the 'protective film of the invention〗 at least contains a non-201202737 adhesive layer 11 and an adhesive layer 12. When the 洮 益 成 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The material of the layer 12 is a polyolefin polymer and the molecular weight of the polyolefin polymer material of the material and the thermoplastic rubber material is between 10000 and 10 _. The molecular weight of the thermoplastic material is between __ _ between the material ^ contains the county material _ molecular material, the ring benzene material _ molecule = ^ 罝 in the heat of the rubber material accounted for 5% ~ gamma. After the above materials pass through the batching system, they will be extruded by the extruder and merged into the die of the extruder. When the protective film 1 is formed, the non-adhesive layer ii and the adhesive layer 2 are formed and extruded. The coating layer and the surface material layer are separately coated, and the film 1 is subjected to a cooling and tempering process after being extruded by the die, thereby ensuring the stability of the size of the film i at different temperatures. (4) When winding into a coil, it is subjected to tension control at different stages, and the surface of the protective film 1 has a thickness of 20_~1〇〇_, and the thickness of the adhesive layer i 2 is in a range of good volume and volume. The thickness of the non-adhesive layer 1 is in the range of 97//m to 3em, and the thickness ratio of the non-adhesive layer 1 1 and the intermediate layer ii 2 is 1: Between 1 and 1:100, wherein the surface roughness of the surface layer is greater than the surface roughness of the adhesive layer 12, and is between 〇.1 and 2. Oem' and the optical haze of the protective film 1 The value (Haze, %) (JIS-K-7105) is between 10% and 80%. When the protective film of the present invention is implemented, please refer to FIG. 2, which is a protective film 1
f SJ 6 201202737 之黏著層12黏貼於光學膜片2具微結構21之表面，其中，該 黏著層1 2之黏著力對P c表面的黏著力為 2〜10N/25mm(JIS-Z-0237);而對光學膜片2表面微結構2 1之黏 -著拉力為2〜2〇g/25麵，此外，當保護膜1貼附於光學膜片2微妗 構21之表面時，保護膜1之黏著層i 2表面接觸於微結構2工 之表面時，會有局部變形之特性，並隨著微結構2 i表面幾何形 狀之外型而會有局部變形之特性，其變形之深度係小於該黏著層 • 12之厚度，其變形之寬度大於光學膜片2微結構2 寬度， 而當保護膜1撕除後，在保護膜1黏著層丄2的表面會形成短暫 的局部變形特徵。 又請參閱圖三所示’係為本發明另一實施例，該保護膜3至 少包含有-雜著層3 1及-黏著層3 2，其主要係由高分子聚 合物或是熱可塑性橡膠材質所構成，該材料經過配料系統後，會 由押出機押出，並於押出機之模頭匯流成一體，當保護膜3成形 鲁後其非黏著層31與黏著層32均同時成形押出完畢，且無須 另行塗佈加工黏著層與離型材料層，且該保護膜3經過模頭押出 成形後，隨即經過冷卻與回火製程，藉此，可確保在不同溫度下， §保》蒦膜3尺寸之文定性，而收捲成卷料時，使其經過不同階段 之張力控制，以確保良好的卷料開捲特性，其中，該非黏著層3 1包括有-表面層31i及—中間層312 ’且該非黏著層31 之材料係為兩種以上之聚稀類高分子材料所組成，此種聚稀類高 分子材料可為PE系類，如LDPE(低密度聚乙烯）、mdpe 201202737 (中密度聚乙烯）、HDPE (高密度聚乙烯）、LLDpE (線 性之低密度聚乙烯）、或是為PP類如Random pp (隨機共聚）、 -Block P P (塊狀共聚）或該上述之原料混料者，其分子量係介 •於〜looooo之間，其比例蛇圍由1:1〜1:1 〇〇之間，而盆密度 (g/cm3)在0· 85~0. 97 g/cm3之間，該中間層3 1 2係為該保護 膜1之剛性主架構，且中間層312係佔保護膜i整體厚度之比 例為10%〜90°/。’該中間層3 1 2係以聚烯類原料所製成，而該聚烯 φ 類可為P E系類，如LD P E (低密度聚乙烯）、MD p E (中密 度聚乙烯）、HDPE (高密度聚乙烯）、LLDPE (線性之低 松度聚乙烯）、或可為pp類如Rancjom pp(隨機共聚）、Bi〇ck p P (塊狀共聚）或該上述之原料混料者，其分子量係介於 1000〜100000之間，其巾，該中間層3工2係可添加抗靜電劑和（或) 有顏色之P E，該p E之熔融流速（MFR)係在20(TC時 1〜20(g/10mn)。而黏著層3 2之材料為醋酸聚乙烯，該醋酸聚乙 • 烯之分子量係介於10000〜120000之間，該可熱塑性材料之分子量 則介於5000〜200000之間，其密度（g/cm3)在〇 9〇〜〇 96 g/cm3 之間，其中，該醋酸含量於醋酸聚乙烯内的含量比例係介於5%〜3〇% 之間，該黏著層3 2於實施時，可為p〇（聚烯類材料），其分子 ϊ係介於1咖〜1()()_之間，而密度（g/em3)在請〜丨g/cm3之 間’並可視需求添加聚烯類高分子材料來調整黏著力之高低該 輯類高分子材料於黏著層3 2之添加比例可為.99%，另，該 黏著層3 2内更可添加PE或增黏劑（松香醋類樹脂、碳氫類樹 201202737 脂或稀類_)’奸£切_找合_可依需 1·卜1:100。該保義3於實辦，該轉層 整為 及表面層3 1 1係以共押之製程予以結合，且邱=3 1 2 霧度值（Haze，％)係介於5%〜6〇%之間。…”、3之光學 “本發明之保護膜3於應用時，請參閱圖四所示，包 黏者層3 1及_賴3 2，_著層3 2靖厚^ 跡·’藉此可令_3之_3 2_ ^ 構面22所需之黏著力，於室溫25。。貼附於光學膜^ 構面22上，其於3_/_剝離速度之下，該黏著力： 1 〜5g/25mm。 、 本發明之功效在於，藉由該保護膜1之非黏著層i i及點著 層12係以聚烯類材料或熱塑性橡膠材料構成，該材料經過配料 後由押出機押出成型後，隨即經過冷卻及回火之製程，藉此，可 使保護膜1能於獨溫度環境巾確健尺寸之紋性，此外，^ 籲非黏著層11及黏著層！2無須另行塗佈加工黏著層與離形材 ；料’而可省卻使及二次加工，進而可達觸保節能之製 程以及降低製造成本之功效；另，藉由該保護町之整體後度範 圍為20#m]〇〇卿而黏著層工2之厚度範圍為3脚97_，該 保護膜1之黏著詹12接觸於光學膜片2微結構21之表面時， 會產生局W5變开;？，且黏著廣1 2變形之深度會小於黏著層1 2之 厚度，而變形之寬度係大於微結構2 i之寬度，以達到提升貼附 良率及易於撕除之功效。此外，藉由以兩種以上之聚烯類材料或 201202737 熱塑性橡膠材料構成一麵著層3 i及―黏著層3 2，該材料經 過配料後由押出機押出’該保護膜3於成型後，隨即經過冷卻及 回火之製程，藉此，使該保護膜3能於不同溫度環境巾確保該尺 寸之安定性’而該非黏著層3 1佔整體厚度_為.·。係以聚 烯類原料職成’而黏著層3 2佔整體厚度_為.霞，係以 醋酸乙_製成，而使該黏著層3 2對於光學則2之非結構面 2 2的黏著力維持在卜1Qg/25mm之間，如此可避免產生殘膠現 象’並可_縣節能之製_及降低製造成本之魏，此外， 該非黏著層3 1更包含有-中間層3 1 2及-表面層3 !工，且 。亥中間層3 1 2係可添加抗靜電劑和⑷有顏色之聚乙稀，藉此 p到撕除侧3b瓣刪如，叫_貞色作為保 濩臈3之識別性。 踩上所述’本發明之保護臈確實可達到所訴求之目的及功 ^ Γ符合專利實職、新穎性及進步性之要件，纽法提出 I利之申睛，祈請貴審查委員之詳鏗，並惠賜准予專利之 審定。 【圖式簡單說明】 圖一係本發明保護膜之示意圖。 圖二係本發明保護膜應用於絲膜片微結構面之示意圖。 圖三係本發明保護臈另一實施例之示意圖。 圖四係本發明保護膜應用於光學模片非微結構面之示意圖。 【主要元件符號說明】 201202737 1保護膜 11非黏著層 111表面層 112中間層 1 2黏著層 2光學膜片 21微結構面 2 2非微結構面 3保護膜 31非黏著層 311表面層 312中間層 3 2黏著層The adhesive layer 12 of f SJ 6 201202737 is adhered to the surface of the optical film 2 having the microstructure 21, wherein the adhesion of the adhesive layer 12 to the surface of the P c is 2 to 10 N/25 mm (JIS-Z-0237) And the adhesion to the surface microstructure 2 of the optical film 2 is 2 to 2 〇g/25, and further, when the protective film 1 is attached to the surface of the optical film 2 When the surface of the adhesive layer i 2 of the film 1 is in contact with the surface of the microstructure 2, there is a characteristic of local deformation, and there is a local deformation characteristic along with the surface geometry of the microstructure 2 i, and the depth of the deformation It is smaller than the thickness of the adhesive layer 12, and the width of the deformation is larger than the width of the microstructure 2 of the optical film 2. When the protective film 1 is torn off, a temporary local deformation characteristic is formed on the surface of the adhesive layer 2 of the protective film 1. . Referring to FIG. 3 again, in another embodiment of the present invention, the protective film 3 includes at least a hybrid layer 31 and an adhesive layer 32, which are mainly composed of a polymer or a thermoplastic rubber. The material is formed. After the material is passed through the batching system, it is extruded by the extruder and integrated into the die of the extruder. When the protective film 3 is formed, the non-adhesive layer 31 and the adhesive layer 32 are simultaneously formed and extruded. The coating layer and the release material layer are not separately coated, and the protective film 3 is formed by extrusion molding, and then subjected to a cooling and tempering process, thereby ensuring that the film is cured at different temperatures. The dimension is qualitative, and when wound into a coil, it is subjected to tension control at different stages to ensure good coil unwinding characteristics, wherein the non-adhesive layer 31 includes a surface layer 31i and an intermediate layer 312. 'The material of the non-adhesive layer 31 is composed of two or more kinds of poly-thick polymer materials, and the poly-thick polymer material may be PE type, such as LDPE (low density polyethylene), mdpe 201202737 (middle Density polyethylene), HDPE (high density) Polyethylene), LLDpE (linear low density polyethylene), or PP such as Random pp (random copolymerization), -Block PP (block copolymerization) or the above-mentioned raw material mixture, the molecular weight of which is Between ~looooo, the ratio of snakes is between 1:1 and 1:1, and the density of the basin (g/cm3) is between 0. 85 and 0.97 g/cm3. The intermediate layer is 3 1 2 It is a rigid main structure of the protective film 1, and the ratio of the intermediate layer 312 to the overall thickness of the protective film i is 10% to 90°/. 'The intermediate layer 3 1 2 is made of a polyolefin raw material, and the polyene φ type may be a PE type such as LD PE (low density polyethylene), MD p E (medium density polyethylene), HDPE (high density polyethylene), LLDPE (linear low-density polyethylene), or may be pp such as Rancjom pp (random copolymerization), Bi〇ck p P (block copolymerization) or the above-mentioned raw material mixture, The molecular weight is between 1000 and 100000, and the intermediate layer 3 is capable of adding an antistatic agent and/or a colored PE. The melt flow rate (MFR) of the p E is 20 (TC). 1~20(g/10mn), and the material of the adhesive layer 3 2 is acetic acid polyethylene, the molecular weight of the polyvinyl acetate is between 10,000 and 120,000, and the molecular weight of the thermoplastic material is between 5000 and 200000. The density (g/cm3) is between 〇9〇~〇96 g/cm3, wherein the content of the acetic acid in the acetic acid polyethylene is between 5% and 3%, the adhesion When the layer 3 2 is implemented, it may be p〇 (polyolefin-based material), the molecular lanthanide is between 1 coffee and 1 () () _, and the density (g/em 3 ) is in the range of ~ 丨 g / cm 3 'And visible It is required to add a polyolefin polymer material to adjust the adhesion level. The addition ratio of the polymer material to the adhesive layer 32 can be 99%. In addition, PE or a tackifier can be added to the adhesive layer 32. (rosin vinegar resin, hydrocarbon tree 201202737 fat or rare _) 'traits cut _ find _ can be according to need 1 · Bu 1:100. The Baoyi 3 is implemented, the transfer layer is integrated and the surface layer 3 1 1 is combined by a co-pending process, and Qiu = 3 1 2 haze value (Haze, %) is between 5% and 6〇%....", 3 optical" protective film of the present invention 3 In the application, please refer to Figure 4, the adhesive layer 3 1 and _ Lai 3 2, _ layer 3 2 Jing Hou ^ trace · 'This can make _3 _3 2_ ^ facet 22 The adhesive force is required to be attached to the optical film surface 22 at room temperature, and the adhesive force is 1 to 5 g/25 mm. The non-adhesive layer ii and the puncture layer 12 of the protective film 1 are made of a polyolefin material or a thermoplastic rubber material. After the material is batched and extruded by an extruder, it is then subjected to a cooling and tempering process. Can make insurance Membrane 1 can be used to ensure the size of the grain in the temperature environment. In addition, the non-adhesive layer 11 and the adhesive layer are not required to be coated separately; the coating and the release material are not separately applied; the material can be omitted and the secondary processing can be omitted. In addition, the process of protecting the energy-saving process and reducing the manufacturing cost can be achieved; in addition, the overall range of the protection town is 20#m]〇〇卿 and the thickness of the adhesive layer 2 is 3 feet 97_, When the adhesion of the protective film 1 is in contact with the surface of the microstructure 21 of the optical film 2, a local W5 is opened; The depth of the adhesive deformation is less than the thickness of the adhesive layer 12, and the width of the deformation is greater than the width of the microstructure 2i, so as to improve the adhesion yield and ease of tearing. Further, by forming the layer 3 i and the adhesive layer 3 2 with two or more kinds of polyolefin materials or 201202737 thermoplastic rubber material, the material is subjected to the batching and then extruded by the extruder. After the protective film 3 is molded, Then, the process of cooling and tempering is performed, whereby the protective film 3 can ensure the stability of the size in different temperature environmental tissues, and the non-adhesive layer 31 accounts for the overall thickness _. The adhesive layer 3 2 occupies the overall thickness _ is Xia, made of acetic acid B, and the adhesion layer 3 2 for the optical 2 non-structural surface 2 2 adhesion Maintained between 1Qg/25mm, so as to avoid the occurrence of residual glue phenomenon, and can reduce the manufacturing cost, and the non-adhesive layer 3 1 further includes - the intermediate layer 3 1 2 and - Surface layer 3 work, and. The intermediate layer 3 1 2 can be added with an antistatic agent and (4) colored polyethylene, whereby p to the tearing side 3b is deleted, called _ 贞 color as the identification of the 濩臈 3 . Stepping on the above-mentioned protection of the invention can indeed achieve the purpose and merits of the claim. Γ Compliance with the requirements of patents, novelty and progressiveness, Newfa proposes the eye of I, and asks the details of the review committee. And the grant of patent approval. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a protective film of the present invention. Figure 2 is a schematic view showing the application of the protective film of the present invention to the microstructured surface of the silk film. Figure 3 is a schematic illustration of another embodiment of the protective raft of the present invention. Figure 4 is a schematic view showing the application of the protective film of the present invention to the non-microstructured surface of the optical film. [Main component symbol description] 201202737 1Protective film 11 Non-adhesive layer 111 Surface layer 112 Intermediate layer 1 2 Adhesive layer 2 Optical film 21 Micro-structured surface 2 2 Non-micro-structured surface 3 Protective film 31 Non-adhesive layer 311 Surface layer 312 intermediate Layer 3 2 adhesive layer