201238755 六、發明說明： 【發明所屬之技術領域】 本發明有關一種光學膜，係於基材膜上具備由活性能 量線硬化性樹脂的硬化物所成之樹脂層。又，有關一種採 用該光學膜之偏光板及畫像顯示裝置。 【先前技術】 近年來’液晶顯示裝置於行動電話、個人電腦用螢幕、 電視、液晶投影機等方面的用途正急速地展開。一般而言， 液晶顯示裝置係包含背光板裝置；以及與由液晶晶胞 (liciuidcrystal cell)、置在該液晶晶胞的背光板側之背 面側偏光板以及配置於該液晶晶胞的目視側之前面侧偏光 板所成之液晶面板所構成者。 之透明樹脂膜）所構成。在貼合保護膜時[Technical Field] The present invention relates to an optical film comprising a resin layer made of a cured product of an active energy ray-curable resin on a base film. Further, a polarizing plate and an image display device using the optical film are used. [Prior Art] In recent years, the use of liquid crystal display devices in mobile phones, personal computer screens, televisions, and liquid crystal projectors has been rapidly expanding. In general, a liquid crystal display device includes a backlight device; and a liquid crystal cell (liciuid crystal cell), a back side polarizing plate disposed on a backlight side of the liquid crystal cell, and a visual side disposed on the liquid crystal cell. The liquid crystal panel formed by the front side polarizing plate is composed of a liquid crystal panel. The transparent resin film is composed of. When the protective film is attached
刖實施將保護膜浸潰於鹼水溶液中之皂化處理 一般係在貼合 理。 偏光板通㈣由於偏細的單面或雙面，隔著接著劑層 或黏箸劑層貼合保護膜（例如以三醋酸纖維素⑽）為代表 另一方面，為了賦傾光板各種絲力m 口The saponification treatment in which the protective film is immersed in an aqueous alkali solution is generally carried out. Polarizing plate through (4) Due to the thin one-sided or double-sided, the protective film is adhered through the adhesive layer or the adhesive layer (for example, cellulose triacetate (10)), on the other hand, in order to impart various silk force to the tilting plate m port
323807 4 201238755 染等情形。 作為解決上述問題之方法’例如JPH10-268133-A中揭 示於TAC膜上所形成之硬塗層（hard coat layer)等樹脂層 上，再設置對驗有对性之保護層，即可防止樹脂層表面的 親水性化之作法。但，在此情形，由於需要貼合額外設置 之保護層，並在皂化處理後加以剝離之過程之故，招致製 造成本的增加及製造過程之煩雜化。 於JP2002-116323-A中揭示使用具有交聯性基之含氣 聚合物的交聯聚合物以構成上述樹脂層的最外層，藉以抑 制因皂化處理所引起之基材膜與樹脂層之間的密著性或樹 脂層的光學功能的低落之作法。jP2〇〇9-i〇4〇54-A中記載 於基材膜上具備以活性能量線硬化型樹脂作為主成分之硬 塗層之光學膜中，藉由使硬塗層中含有與活性能量線硬化 型樹脂化學鍵結之（甲基）丙稀醯基及具有默化烧基之（甲 基）丙烯義，可提升硬㈣之對皂化處理之抗性（抗矣化 本發明之目的在於提供一種基材膜上具備由活性 線硬化性樹脂所形成之樹脂層之光學膜，其係無因皂化處 =所引起之樹脂層表㈣對水接觸角、基賴與樹脂 ^的密著性、樹脂層的光學功能的低落等，而抗4化^優 、的先學膜。本發明之其他目的在於提供使用上述光學膜 之偏光板及晝像顯示裝置、 【發明内容】 本發明係包含下述者。 323807 5 201238755 [1]. 一種光學膜，係具備基材膜、及於該基材膜上由活性 能量線硬化性樹脂的硬化物所成之樹脂層， 該樹脂層含有由以聚（甲基）丙烯醆酯作為主鏈之聚 合物所構成之界面活性劑。 ⑵·如tU所記載之光學膜’其中’前述界面活性劑係於側 鏈中含有氟原子及/或矽原子者。 [3] .如[1]或[2]所記載之光學獏，其中，前述樹脂層係於 刖述基材膜上塗佈含有活性能量線硬化性樹脂及上述界面 活性劑之塗佈液後，在鑄模表面按壓於塗佈層表面之狀 態’對塗佈層照射活性能量線以使其硬化者。 [4] .如[3]所記載之光學膜，其中，前述活性能量線係紫外 線。 [5] .如[3]或[4]所記載之光學膜，其中，鑄模係具有由鏡 面所成之表面之鑄模或者具有凹凸表面之鑄模。 [6] . —種偏光板，係具備偏光板、及以使前述基材膜侧能 相對向於該偏光膜之方式積層於該偏光膜上之[n至[5]中 任一項所記載之光學膜。 [7] ·—種畫像顯示裝置，係具備[6]所記載之偏光板、及晝 像顯示元件，前述偏光板係以其樹脂層侧為外侧之方式配 置於畫像顯示元件上者。 藉由本發明可提供一種光學膜，係於基材膜上具備由活 性能量線硬化性樹脂所形成之樹脂，該樹脂層的耐皂化性 優異。例如，藉由本發明可提供一種皂化處理前後之樹脂 層的對水接觸角變化極小（例如5。以下）的光學膜。由於本 323807 6 201238755 發明之光㈣可n由使樹脂層形成用塗佈液巾含有預定之 界面活性劑而製造，因此，不會伴隨有需要附加新的製造 過程等製造妓雜化，❿在製造效率及製造成本方面 亦為有利者。本發日狀光學膜係適合❹於偏光板，或液 晶顯示裝置等晝像顯示裝置者。 【實施方式】 〈光學膜〉 第1圖至第4圖係表示本發明之光學膜的較佳例之概 略剖面圖。有關本發明第1圖至第4圖所示之絲膜10〇 至400係具備基材膜1〇1，及積層於基材膜1〇丨上之樹脂 層（光學功旎層）1〇2〇樹脂層1〇2係由活性能量線硬化性樹 脂的硬化物所構成之層，含有以聚（曱基）丙烯酸酯作為主 鏈之聚合物所構成之界面活性劑者。本發明之光學膜，如 第1圖或第3圖所示之例，樹脂層j〇2表面可由平坦面所 構成，或者如第2圖或第4圖所示之例，可由凹凸面所構 成。又，如第3圖及第4圖所示之例，亦可對應樹脂層1〇2 中所賦與之光學功能，而於樹脂層1〇2中分散有透光性微 粒子103。 本發明之光學膜係適合使用於液晶顯示裝置等晝像顯 不裝置者’例如樹脂層1〇2可作為用以防止因各種的外力 所引起之傷害之硬塗層之硬塗膜（hard c〇at f丨lm)(有時含 有透光性微粒子）；樹脂層102作為擴散從液晶片所射出之 光用以改善視角的光擴散層（含有作為光擴散劑之透光性 微粒子）之目視侧光擴散膜；樹脂層1〇2作為具有用以防止 7 323807 201238755 外光的映照或耀眼的表面凹凸之防眩層（有時含有透光性 微粒子）之防眩膜；樹脂層102為由低折射率層或折射率相 異的複數層所構成之抗反射層（有時含有透光性微.粒子）之 抗反射膜；樹脂層102作為使入射於液晶片之光擴散，用 以防止因背光源單元所引起之波紋（Moir6)等的光擴散异 (含有作為光擴散劑之透光性微粒子）之背面側光擴散膜 (擴散板）等。硬塗膜、目視側光擴散膜、防眩犋以及抗反 射膜通常係作為目視側偏光板的目視側保護膜而貼合於偏 光膜上所用者（亦即，配置於晝像顯示裝置之表面）。背面 側光擴散膜通常係作為背光源侧偏光板的背光源側保護膜 而貼合於偏光膜上者。 以下’就本發明之光學膜，再加以詳細說明。 [基材膜] 基材膜101只要是透光性者即可，例如可採用玻璃或 塑膠膜。作為塑膠膜，只要是具有適度的透明性、機械強 度即可。具體可例舉：TAC(三醋酸纖維素）等纖維素乙酸酯 系樹脂、丙烯酸系樹脂、聚碳酸酯系樹脂、聚對苯二曱酸 乙二酯等聚酯系樹脂、聚乙烯、聚丙烯等聚烯烴系樹脂等。 基材膜101的厚度，係例如為丨〇至500 v m，從光學膜的 薄膜化等觀點來看，較佳為1〇至300 μ m，更佳為20至300 // m 0 [樹脂層] 本發明之光學膜係具備積層在基材膜1〇1上之樹脂層 (光學功能層）102。樹脂層102係由活性能量線硬化性樹脂 8 323807 201238755 的硬化物所構成之層，含有由以聚（甲基）丙烯酸酯作為主 鏈之聚合物所構成之界面活性劑者。並且，於基材膜1 〇 1 與樹脂層102之間，亦可具有其他層（包含接著劑層）。 (1)活性能量線硬化性樹脂 活性能量線硬化性樹脂，可為紫外線硬化性樹脂、電 子射線硬化性樹脂等’例如，較佳為使用含有多官能（曱基） 丙烯酸酯化合物者。多官能（曱基）丙烯酸酯化合物係指分 子中至少具有2個（曱基）丙稀醯氧基之化合物。多官能（甲 基）丙烯酸酯化合物的具體例而言，可例舉如：多元醇與（曱 基）丙烯酸之酯化合物、（甲基）丙烯酸胺基曱酸乙酯化合 物、聚醋（曱基）丙稀酸g旨化合物、（曱基）丙嫦酸環氧酉旨化 合物等含有2個以上（甲基）丙烯醯基之多官能聚合性化合 物等。 多元醇而言’可例舉如乙二醇、二乙二醇、三乙二醇、 四乙二醇、聚乙二醇、1,2-丙二醇、二丙二醇、三丙二醇、 四丙二醇、聚丙二醇、1，3-丙二醇、丁二醇、戊二醇、己 一醇、新戊二醇、2-乙基-1，3-己二醇、2, 2’ -硫二乙醇、 1，4-環己烷二曱醇之類的2元醇；如三羥甲基丙烷、甘油、 新戊四醇、二甘油、二新戊四醇、二-三羥曱基丙烷之類的 3元以上的醇。 多元醇與（曱基）丙烯酸所成之酯化物而言，可具體例 舉：乙二醇二（甲基）丙烯酸酯、二乙二醇二（曱基）丙烯酸 酯、1，6-己二醇二（甲基）丙烯酸酯、新戊二醇二（甲基）丙 烯酸酯、三羥曱基丙烷三（曱基）丙烯酸酯、三羥曱基乙烷 9 323807 201238755 二（曱基）丙烯酸酯、四羥曱基曱烷三（甲基）丙烯酸酯、16— 己二醇二（曱基）丙烯酸酯、四羥曱基曱烷四（曱基）丙烯酸 酯、五甘油三（甲基）丙烯酸酯、新戊四醇三（曱基）丙稀酸 醋、新戊四醇四（曱基）丙烯酸酯、甘油三（曱基）丙烯酸酯、 一新戊四醇三（甲基）丙稀酸酯、二新戊四醇四（曱基）丙稀 酸酯、一新戊四醇五（曱基）丙稀酸酯、二新戊四醇六（曱基） 丙稀酸酯等。 (曱基）丙稀酸胺基曱酸乙醋化合物而言，可例舉如：1 分子中具有複數個異氰酸酯基之異氰酸酯、及具有羥基之 (甲基）丙烯酸衍生物的胺基甲酸乙酯化反應物。i分子中 具有複數個異乱酸醋基之有機異氰酸g旨而言，可例舉如： /、亞甲基一異氰酸酯、異佛酮二異氰酸酯、甲伸苯基二異 氰酸Sa、萘二異氰酸酯、二苯基甲烧二異氰酸酯、伸茬基 二異氰酸酯、二環己基甲烷二異氰酸酯等丨分子具有2個 異氰酸酯基之有機異氰酸酯，將此等有機異氰酸酯加以異 二聚氰酸酯改質，加成物改質、二縮脲改質之1分子中具 有3個異氰酸酯基之有機異氰酸酯等。具有羥基之（甲基） 丙烯酸衍生物而言，可例舉如：（甲基）丙烯酸2_羥基乙 酯、（甲基）丙烯酸2-羥基丙酯、（甲基）丙烯酸4_羥基丁 酯、（甲基）丙烯酸2-羥基丁酯、（甲基）丙烯酸2一羥基 苯氧基丙酯、新戊四醇三丙烯酸酯等。 較佳的聚酯（甲基）丙烯酸酯化合物，係使含羥基之聚 酯與（甲基）丙稀酸進行反應所得之聚醋（$基）丙稀酸醋。 可使用之較佳含減之聚酯係藉由多元醇與㈣或具有複 323807 10 201238755 數個幾基之化合物及/或其酸酐的醋化反應所得之含經基 之聚酯。多元醇而言，可例示如與前述之化合物同樣者。 又，除多元醇以外，作為苯酚類尚可例舉如：雙酚A。羧 酸而言，可例舉如：甲酸、醋酸、丁基羧酸、安息香酸等。 具有複數個叛基之化合物及/或其酸酐而言，可例舉如：馬 來酸、酞酸、富馬酸、衣康酸、己二酸、對酞酸、馬來酸 酐、醜酸酐、苯偏三曱酸、環己统二致酸針等。 如上述之多官能（甲基）丙稀酸醋化合物之中，從硬化 物的強度提升或取得之容易性的觀點來看，較佳為：己二 醇二（甲基）丙烯酸酯、新戊二醇二（甲基）丙烯酸酯、二乙 二醇二（甲基）丙烯酸酯、三丙二醇二（甲基）丙烯酸酯、三 羥甲基丙烧三（曱基）丙烯酸酯、新戊四醇三（甲基）丙烯酸 酯、二新戊四醇六（曱基）丙烯酸酯等酯化合物；六亞曱基 二異氰酸酯與（甲基）丙烯酸2-羥基乙酯的加成物；異佛酮 二異氰酸酯與（曱基）丙烯酸2-羥基乙酯的加成物；甲伸苯 基二異氰酸酯與（曱基）丙烯酸2-羥基乙酯的加成物；加成 物改質異佛酮二異氰酸酯與（甲基）丙烯酸2_羥基乙酯的 加成物；以及二縮脲改質異氟胴二異氰酸酯與（甲基）丙烯 酸2-羥基乙酯的加成物。再者，此等多官能（甲基）丙烯酸 酯化合物可分別單獨使用，或與其他的丨種以上者併用。 活性能量線硬化性樹脂，除上述多官能（甲基）丙烯酸 醋化合物外’尚可含有單官能（甲基）丙烯酸酯化合物。單 官能（甲基）丙烯酸酯化合物而言，可例舉如：（甲基）丙烯 酸甲酯、（甲基）丙烯酸乙酯、（甲基）丙烯酸丁酯、（甲基） 11 323807 201238755 丙烯酸異丁酯、（曱基）丙烯酸第三丁酯、（曱基）丙烯酸2_ 羥基乙酯、（甲基）丙烯酸2-羥基丙酯、（甲基）丙烯酸羥基 丁酯、（甲基）丙烯酸2-羥基丁酯、（甲基）丙烯酸2-羥基-3-苯氧基丙酯、（曱基）丙烯酸縮水甘油酯、丙烯醯基嗎啉、 N-乙稀基吼洛燒酮、（甲基）丙烯酸四氫糠酯、（甲基）丙稀 酸環己酯、（甲基）丙烯酸2-乙基己酯、（甲基）丙烯酸異莰 酯、（曱基）丙烯酸乙醯酯、（甲基）丙稀酸苄酯、（甲基）丙 烯酸2-乙氧基乙酯、（甲基）丙烯酸3_甲氧基丁酯、乙基 卡必醇（甲基）丙烯酸酯、（甲基）丙烯酸苯氧酯、氧化乙烯 改質（甲基）丙烯酸苯氧酯、氧化丙烯（甲基）丙烯酸酯、壬 基酚（甲基）丙烯酸酯、氧化乙烯改質（甲基）丙烯酸酯、氧 化丙烯改質壬基酚（甲基）丙烯酸酯、曱氧基二乙二醇（甲基) 丙烯酸酯、2-(甲基）丙烯醯氧基乙基_2_羥基丙基酞酸酯、 (甲基）丙烯酸二甲基胺基乙酯、甲氧基三乙二醇（甲基）丙 烯酸酯等（曱基）丙烯酸酯類。此等化合物可分別單獨使 用’或與其他的1種以上者併用。 又，活性能量線硬化性樹脂亦可含有聚合性寡聚物。 藉由使其含有聚合性寡聚物，可調整樹脂層1〇2的硬度。 聚合性寡聚物可為例如前述多官能（曱基）丙烯酸酯化合 物，亦即，多元醇與（甲基）丙烯酸所成之酯化合物、（甲基） 丙烯酸胺基甲酸乙g旨化合物、聚醋（甲基）丙婦酸醋化合物 或（甲基）丙烯酸環氧酯等二聚物、三聚物等之類的寡聚物。 其他的聚合性寡聚物而言，可例舉如：由分子中至少 具有2個異氰酸酯基之聚異氰酸酯，與至少具有丨個（甲基） 323807 12 201238755 丙烯醯氧基之多元醇之反應所得之胺基曱酸乙酯寡聚物。聚 異氰酸酯而言，可例舉如：六亞甲基二異氰酸酯、異佛酮 二異氰酸酯、曱伸苯基二異氰酸酯、二苯基曱烷二異氰酸 酯、伸茬基二異氰酸酯的聚合物等，至少具有1個（曱基） 丙烯醯氧基之多元醇而言，係多元醇與（曱基）丙烯酸的酯 化反應所得之含羥基之（甲基）丙烯酸酯，作為多元醇，可 例舉如：1，3-丁二醇、1,4-丁二醇、1，6-己二醇、二乙二 醇、三乙二醇、新戊二醇、聚乙二醇、聚丙二醇、三羥曱 基丙烧、甘油、新戊四醇、二新戊四醇等者。該至少具有 1個（曱基）丙烯醯氧基之多元醇，係多元醇的醇性羥基的 一部分與（甲基）丙烯酸進行酯化反應，同時醇性羥基殘留 於分子中者。 再者，其他聚合性寡聚物之例而言，可列舉如：由具 有複數個羧基之化合物及/或其酸酐，與至少具有1個（曱 基）丙烯醯氧基之多元醇之反應所得之聚酯（曱基）丙烯酸 酯寡聚物。具有複數個羧基之化合物及/或其酸酐而言，可 例示如與前述多官能（曱基）丙烯酸酯化合物的聚酯（甲基） 丙烯酸酯中所記載者同樣者。又，至少具有1個（甲基）丙 烯醯氧基之多元醇而言，可例示如與上述（甲基）丙烯酸胺 基甲酸乙酯寡聚物中所記載者同樣者。 除了如上所述之聚合性寡聚物以外，作為酯（曱基）丙 烯酸胺基曱酸乙酯尚可例舉：含羥基之聚酯、含羥基之聚 醚或者對含羥基之（曱基）丙烯酸酯的羥基，使異氰酸酯類 進行反應所得之化合物。可採用之較佳含經基之聚醋係由 13 323807 201238755 2醇錢酸或具有複數龍基之化合物及/或其酸軒進 灯醋化反應所得之含經基之聚酯。多元醇、或具有複數 幾基之化合物及/或其酸酐而言，可分別例示如與多宫能 』(甲基）丙稀酸醋化合物的聚酯（甲基）丙稀酸醋化合物中所 記載者同樣者。可採用之較佳含經基之聚嶋於多元醇加 成1種或2種以上的環氧烧及/或卜丁内酿所得之含經其 之聚醚。多元醇可為與於前述含經基之聚酿者能使用同^ 者。可採用之較佳含經基之（曱基）丙稀酸醋而言，可例示 如與聚合性s聚物之（甲基）丙騎胺基曱酸乙§旨寡聚物中 所s己載者同樣者。異氰酸酯類而言，較佳為分子中具有1 個以上的異氰酸醋基之化合物，特佳為曱伸笨基二異氛酸 酉曰、或六亞甲基二異氰酸酯、異佛酮二異氰酸酯等2元的 異氰酸酯化合物。 此等聚合性寡聚物化合物可分別單獨使用，或與其他 的1種以上者併用。 ' (2)界面活性劑 於本發明之光學膜中，作為樹脂層1〇2中所含之界面 活性劑，採用由以聚（曱基）丙烯酸酯作為主鏈之聚合物所 構成之界面活性劑。由以聚（甲基）丙烯酸酯作為主鏈之聚 合物所構成之界面活性劑，可直接採用該聚合物本身，亦 可採用經將該聚合物溶解於溶劑中之溶液。使於樹脂層 102中含有該界面活性劑，藉由可提升樹脂層1〇2的調平 性’而可k升抗皂化性。具體而言，可使皂化處理前後的 樹脂層102的對水接觸角變化降低至例如5。以下的程度。 14 323807 201238755 之η If制樹月日層102 #防污性，或樹脂層ig2與基材膜 接著性（因而’光學膜的耐久性）、樹脂層H)2的光 子功此因皂化處理所引起之降低。㈣上述界面活性劑時 提升效果’相較於f知的界面活性劑（由以聚烧 ^氧燒作為主鏈之聚合物所構成之界面活性劑等）為顯 構成界面活性劑中之聚合物的主鍵之聚（甲基）丙稀酸 醋’係以（f基）丙埽酸酉旨作為重複單元之聚合物鍵 *而作 為(甲基)丙烯酸酿而言，可採用(甲基)丙稀酸甲醋、(甲基) 丙烯酉文乙酉日、（甲基）丙烯酸丙醋、（甲基）丙婦酸丁醋等（甲 基）丙婦酸院醋或聚燒二醇（甲基）内稀_等各種（曱基） 丙婦酸酯或者其衍生物。聚（甲基）_賴可為由 1種（甲 基）丙稀酸s旨所構成之單獨聚合物，亦可為由2種以上的 (曱基）丙烯酸酯所構成之共聚物。 於上述界面，舌性劑中之聚合物，從提升抗專化性及調 平性之觀點來看，較佳為於顯含有氟原子及/或石夕原子 者;/匕種側鏈可於任—形態下含有氟原子及/或㈣子，含 有氟原子及/或㈣子之側鏈的例，例如包含將烧基的氮原 子的彳刀或王部經氟原子取代之氟化烷基、聚矽氧烷 基、聚烧基錢燒基、含氟聚錢絲、以及此等的衍生 物。此種側鏈之導入方法並無特別限制，可例舉如：且有 能與形成界面活性射之聚合_域之（曱基）科酸黯 共聚之末端雙鍵（末端（曱基）丙烯酿基、末端（曱基）丙稀酿 胺基、末端乙縣縣、末端乙烯基縣等），錢含有含 323807 15 201238755 氟官能基及/或矽氧烷改質官能基之聚合性單體進行共聚 合之方法等。 為了調節界面活性劑的極性或與溶劑之相溶性，必要 時，可於側鏈導入脂肪族烴基（包含脂環式烴基）或芳香族 烴基等。 又’亦可於侧鏈含有N、P等雜原子。導入此種側鏈之 方法，並無特別限制，可例舉如：具有能與形成界面活性 劑中之聚合物的主鏈之（甲基）丙烯酸酯共聚合之末端雙鍵 (末端（甲基）丙烯醯基、末端（曱基）丙烯醯胺基、末端乙烯 基醚基、末端乙烯基酯基等）同時，使具有脂肪族烴基、芳 香族烴基或者含有雜原子之官能基之聚合性單體進行共聚 合之方法，或作為形成界面活性劑中之聚合物的主鏈之（曱 基）丙烯酸酯’採用含有羥基等反應性官能基之（曱基）丙烯 酸酯’並對此反應性官能基使具有脂肪族烴基、芳香族烴 基或含有雜原子之官能基之化合物進行縮聚合之方法等。 又，若列舉由以聚（曱基）丙烯酸酯作為主鏈之聚合物 所構成之界面活性劑的更具體的例，可列舉如：以聚（曱 基）丙烯酸烷基酯作為主鏈之界面活性劑之「BYK-3550」 (BYK 公司製）或 jp2〇i〇-196044-A、JP2010-235784-A 中所 記載之含氟自由基聚合性共聚物之中，主鏈為（曱基）丙稀 酸酯者等。 樹脂層102中上述界面活性劑的含量作為聚合物量， 相對於活性能量線硬化性樹脂1〇〇重量份，較佳為〇 1 5重量份’更佳為0. 2至3重量份。如界面活性劑的含量 323807 16 201238755 相對活性能量線硬化性樹脂100重量份為0.1重量份以下 時’則難以獲得足夠的抗皂化性提升效果。又，當超過5 重量份以上時，則有硬度或耐擦傷性會降低等損害樹脂層 102的特性或功能之可能性。 (3)透光性微粒子 透光性微粒子103而言，並無特別限定，例如可使用： 由丙烯酸系樹脂、三聚氰胺樹脂、聚乙烯、聚苯乙豨、有 機聚矽氧樹脂、丙烯酸-苯乙烯共聚物等所成之有機微粒 子、或由碳酸辦、氧化石夕、氧化銘、碳酸鋇、硫酸鋇、氧 化鈦、玻璃等所成之無機微粒子等。又，亦可使用有機聚 合物的氣球（balloon)或珠粒（beads)。此等透光性微粒子 103可1種單獨使用，亦可混合2種以上使用。透光性微 粒子103的形狀，可為球狀、扁平狀、板狀、針狀、不定 形狀等任一者。 透光性微粒子103的粒徑或折射率，並無特別限制， 惟如光學膜為光擴散膜或防眩膜時，則為能有效顯現内部 霧狀的觀點來看，粒徑較佳為0.5 Am至20am * 1的舉&圍。又， 因相同理由，硬化後的活性能量線硬化性樹脂的 透光性微粒子103的折射率之差值，較佳為在〇 〇4午… 的範圍。透光性微粒子103的含量，相對於活性处^0· 15 化性樹脂100重量份，通常為3至6〇 ㈤里線硬 至50重量份。當透光性微粒+ 1〇3的含量相對於 j 線硬化性樹脂1〇〇重量份未達3重量份時，有可处旺此= 職予光擴散性或防閃光性。 β月匕未充刀 323807 17 201238755 另-方面，若超過60重量份’則有可能損害光學膜 的透明性，又，防錄絲擴散性過高，有對比度降低之 傾向。 [樹脂層之表面形狀等] 樹脂層102的表面形狀，可為例如從平垣面所成者。 此種平坦面’❹具有由鏡㈣成之鑄模作為鑄模，在將 該鑄模表面按壓於硬化前的樹脂層（*含有活性能量線硬 化性樹脂及界面活性劑之塗佈液所成之塗佈層）的表面之 狀態進行硬化，而將該鏡面轉印於樹脂層1Q2表面即可形 成。又，藉由不使用鑄模使塗佈層硬化，可製得具有較平 坦的表面之樹脂層。 樹脂層102亦可為具有表面凹凸者。此種表面凹凸係 使用具有凹凸表面之鑄模作為鑄模，在將該鑄模的凹凸表 面按壓於塗佈層的表面之狀態進行硬化，而將該凹凸表面 轉印於樹脂層102表面即可形成。又，不㈣鑄模藉由使 塗佈層中含有透光性微粒子，亦可製得具有表面凹凸之樹 脂層。 在此，已知當形成樹脂層時，在將鑄模表面按壓於塗 佈層表面之狀態，對塗佈層照射活性能量線使其硬化時， 因界面活性劑所引起之抗皂化性提升效果會增高。雖然此 等之詳細理由尚無法確定，惟可推測藉由按壓鑄模，界面 活性劑會採取與不按壓鑄模時不同配向狀態之故。 樹脂層102可為單層構造者，亦可為多層構造者。在 後者之情形，至少最外層含有上述界面活性劑。單層構造 323807 18 201238755 !而。可列舉如：硬塗層、光擴散層、防眩層、抗反 射層（低折射率層等）等。多層構造之例而言，可列舉如： 由夕層構造所成之抗反射層（由折射率不同之複數層所成 之抗反射層等）、或硬塗層、光擴散層或防眩層與抗反射層 的組合者等。 [光學膜之製造方法] 接著’就上述有關本發明之光學膜之製造方法加以說 明。本發明之光學膜，可依照包含下述步驟（A)及（B)之方 法順利地（以高效率且低成本）製造。 (A)於基材膜1〇1上塗佈含有活性能量線硬化性樹脂及由 以聚（甲基）丙缔酸酯作為主鏈之聚合物所構成之界面活性 劑之塗佈液，以形成塗佈層之步驟； ()藉由,、、、射③性能量線，使上述塗佈層硬化之步驟。 (1)步驟（A) 述^驟⑴中所用之塗佈液，至少含有活性能量線 L Γ旨及由以聚（曱基）丙稀動旨作為主鏈之聚合物所 ==。面活性劑，通常復含有光聚合起始劑（自由基聚合 等^、=要時，亦可含有透光性微粒子1〇3、有機溶劑 '合光扭劑、分散劑、抗靜電劑、防污劑等其他成分。 光聚合起始劑而言，ϋ丞田 λ « λ . 如乙酿苯（acetophenone) =起始:丨、苯偶姻(be_in)系光聚合起始劑、苯甲 醯本（benzophe_e)系光聚合起始劑、噻噸酮 ⑽麵th隱）系絲合起始劑、三㈣、統合起始劑、 曙二唾（o—e)系光聚合起始劑等。又，作為光聚人 323807 19 201238755 起始劑’亦可採用例如2, 4, 6-三曱基苄醯基二笨基氧化 膦、2,2’-雙（鄰氣苯基）-4,4’，5,5，-四苯基-1，2’-聯咪唑 (biimidazole)、10二丁基-2-氯吖啶酮、2-乙基蒽醌、二苯 基乙二酮（benzil)、9, 10-菲酿i(phenanthrenequinone)、 樟腦醌（camphorquinone)、苯基乙醛酸曱酯、二茂鐵 (titanocene)化合物，光聚合起始劑之使用量相對於活性 能量線硬化性樹脂1〇〇重量份，通常為〇· 5至2〇重量份， 較佳為1至5重量份。 有機溶劑而言，可考慮黏度等從以下中選擇使用己烷、 環己烷、辛烷等脂肪族烴；曱苯、茬等芳香族烴；乙醇、 1-丙醇、異丙醇、卜丁醇、環己醇等醇類；甲基乙基酮、 甲基異丁基酮、環己酮等酮類；醋酸乙⑽、酷酸丁醋、醋 酸異丁料乙二醇單甲㈣、乙二醇單乙基鍵、二 士=乙細、丙二醇單甲基喊、丙二醇單乙基醚等乙 =广醇單曱基醚乙酸醋、丙二醇翠曱基_ 酉曰等自曰化乙二醇醚類；2_曱氧基乙醇、乙 丁氧基乙醇等赛路蘇(cellosolve)類;：=二-乙醇、吵乙氧基乙氧基）乙醇、2_(2 f氧基乙氧基 醇等卡必醇類等。溶劑可單獨使用，必要土乙氧基）乙 使用。塗佈後必需使上述有機溶劑蒸發。2可混合數種 在阶幻阶之範圍内為宜。又，於=此’期望沸點 較佳為在0· ikPa JL 20kPa之範ϋ。 <飽和蒸氣壓 再者’當使用透光性微粒子103時， 光學特性及表㈣狀成為均質者起見，使光學膜的 i佈液中之透光 323807 20 201238755 性微粒子103的分散為等方向分散為佳。 塗佈液對基材膜101上之塗佈，可採用例如凹版塗佈 法、微凹版塗佈法、輥塗佈法、刮刀塗佈法、氣刀塗佈法、 吻合塗佈法（kiss coating)、Μ模塗佈法等實施。 以改良塗佈液的塗佈性或改良與樹脂層102之間的黏 接性為目的，亦可於基材膜101表面（樹脂層側表面），實 施各種表面處理。表面處理而言，可例舉電暈放電處理、 輝光放電處理、酸表面處理、鹼表面處理、紫外線照射處 理等。又，亦可於基材膜101上形成例如底基層（primer layer)等其他層，並於其他層上塗佈塗佈液。 (2)步驟（B) 本步驟中，在按照需要進行塗佈層之乾燥（去除溶劑） 後，藉由照射活性能量線使塗佈層硬化以形成樹脂層1 〇 2。 此時，如上述般，在將鑄模表面按壓於塗佈層表面之狀態， 從基材膜101侧照射活性能量線使塗佈層硬化時，可更提 高因界面活性劑所致之抗皂化性提升效果。鑄模係用以於 樹脂層102表面賦予所希望之形狀者，故具有由該所希望 之形狀的轉印構造所成之表面形狀。若藉由在塗佈層表面 一邊將該表面形狀按壓於塗佈層表面，一邊使塗佈層硬 化，則可將鑄模的表面形狀轉印於樹脂層102表面。鑄模 而言，可例舉如由具有鏡面所成之表面之鑄模（例如鏡面輥） 及具有凹凸表面之鑄模（例如壓花輥）。 當鑄模具有凹凸表面時，凹凸形狀的圖案可為規則圖 案，亦可為無規則圖案、或者舖有特定尺寸的1種以上的 21 323807 201238755 無規則之仿無規則 狀7凡〜〜& \ A r防止因表面形狀所引起之 反射光的干^ 像著色為料色起見，較佳為無規 則圖案或仿無規則圖案。 鑄模的外形形狀並無特別限制’可為平板狀、圓柱狀 或者圓筒狀的輥，惟從連續生產性的觀點來看，較佳為鏡 面親或壓花輥等的圓柱狀或圓筒狀的鑄模。此時，將於圓 柱狀或圓筒狀的鎮模侧面形成預定的表面形狀。 鑄模的基材的材質，並無特別限制，可從金屬、玻璃、 碳、樹脂或此等的複合體適當選擇，惟從加I性等觀點來 看，較佳為金屬。適合採用之金屬材料而言，從成本的觀 點來看，可例舉如：I呂、鐵、或以紹或鐵作為主體之合金 等。 製得鑄模之方法而言，可例舉如：經研磨基材，並實 施喷砂加工後，實施無電解鍍鎳之方法（JP2006-53371-A); 對基材實施鍍銅或鍍鎳後，加以研磨，並實施喷砂加工後， 實施錢鉻之方法（JP2007-187952-A);實施鍍銅或鍍鎳後研 磨’實施喷砂加工後實施蝕刻步驟或鍍銅步驟，接著，實 施链鉻之方法（JP2007-237541-A);於基材表面實施鍍銅或 錢鎳後研磨’於經研磨之面上塗佈形成感光性樹脂，並於 該感光性樹脂膜上將圖案加以曝光後顯影，將經顯影之感 光性樹脂臈作為光罩使用以進行蝕刻處理，剝離感光性樹 脂膜後’再進行蝕刻處理，並使凹凸面鈍化後，於所形成 之凹凸面實施鍍鉻之方法；以及使用車床等工作機械，藉 由切削工具切削成為鑄模之基材之方法（W02007/077892-A) 22 323807 201238755 等。 . 由無規則圖案或仿無規則圖案所成之鑄模的表面凹凸 ，形狀，例如，將由：調頻篩選法（FM Serening)、DLDS (dynamic low-discrepancy sequence(動態低矣異序列）） 法、利用塊體共聚物的微相分離圖案之方法或帶通濾波益 法所成之無規則圖案在感光性樹脂膜上進行曝光^ 並將經顯影之感光性樹脂膜作為光罩以實施蝕刻處理而形 成。 活性能量線而言’可依塗佈液中所含之活性能置線硬 化性樹脂之種類，從紫外線、電子射線、近紫外線、可見 光、近紅外線、紅外線、X射線等適當選擇，惟此等之中 較佳為紫外線、電子射線’由於操作簡便且可得尚犯蓋之 故，特佳為紫外線。 紫外線之光源而言，可採用：低壓水銀燈、中壓水銀 燈、高壓水銀燈、超高壓水銀燈、碳弧燈、金屬齒素燈、 氙弧燈等。又，亦可採用ArF準分子雷射、KrF準分子雷 射、準分子燈或同步輻射放射光等。此等之中’較適合採 用超高壓水銀燈、高壓水銀燈、低壓水銀燈、氙弧燈、金 屬鹵素燈。 又，電子射線而言，可例舉如：從柯克勞夫-沃耳吞型 (Cockcroft-Walton’s type)、凡得格拉夫粒子型（Van de Graff type)、共振變壓器型、絕緣蕊材變壓器型、直線型、 地那米型（Dynamitron)、高頻型等各種電子射線加速器所 放出之具有50至lOOOKeV，較佳為1〇〇至300KeV之能量 23 323807 201238755 之電子射線。 其次，說明本發明光學膜之製造方法的較佳實施形態。 有關該較佳實施形態之製造方法，為了連續性製造本發明 之光學膜，係包含：將經捲成輥狀之基材膜101連續性送 出之步驟’進塗佈含有活性能量線硬化性樹脂及以聚（曱基） 丙烯酸酯作為主鏈之界面活性劑之塗佈液，並需要時使其 乾燥之步驟，一邊將鑄模表面按壓於塗佈層表面一邊使塗 佈層硬化之步驟’以及捲取所得光學膜之步驟。此種製造 方法，可採用例如第5圖所示之製造裝置實施。以下，參 考第5圖，就有關該較佳實施形態之製造方法加以說明。 首先’藉由捲出裝置201連續性捲出基材膜。接 著’於所捲出之基材膜上，使用塗佈裝置20及與此相對向 之支撐輥（back up roll)203塗佈塗佈液。接著，若塗佈 液中含有溶劑時’則藉由通過乾燥機204使其乾燥。接著， 於权置有塗佈層之基材膜101 ’朝著鏡面金屬製棍或壓花 加工用金屬製輥205與夾輥206之間，以其塗佈層與鏡面 金屬製輥或壓花加工用金屬製輥205密著之方式進行捲 繞。藉此，於塗佈層表面按壓鏡面金屬製輥的鏡面或壓花 加工用金屬輥的凹凸面，而轉印表面形狀。接著，在基材 膜101捲繞於鏡面金屬製輥或壓花加工用金屬製輥2〇5之 狀態，穿透基材膜101，從紫外線照射裝置2〇8對塗佈層 照射紫外線，藉以使塗佈層硬化。.由於因紫外線照射而使 照射面成為尚溫之故，鏡面金屬製輥或壓花加工用金屬製 輥205,較佳為於其内部具備用以調整其表面溫度為室溫 323807 24 201238755 • 至80°C左右之冷卻裝置。又，紫外線照射裝置208可使用 - 1台或複數台。 經形成樹脂層102之基材膜1〇1(光學膜）以剝離輥207 從鏡面金屬製輥或壓花加工用金屬製輥205剝離。 經如上述方式製作之光學膜，以捲取裝置209捲取。 此時’以保護樹脂層102為目的，亦可隔著具有再剝離性 之黏著劑層對樹脂層102表面一邊貼附由聚對苯二曱酸乙 二酯或聚乙烯等所成之保護膜一邊進行捲取。 並且’於經被剝離輥207從鏡面金屬製輥或壓花加工 用金屬製醌205剝離後，亦可實施額外的紫外線照射。又， 亦可將形成有未硬化之塗佈層之基材膜1〇1從鏡面金屬製 輥或壓花加工用金屬醌205剝離之後，照射紫外線以使其 硬化之方式取代一邊於鏡面金屬製輥或壓花加工用金屬製 輥205 —邊紫外線照射的方式。 〈偏光板〉 本發明之偏光板係具備偏光膜，及以基材膜1〇1侧能 相對向於該偏光膜之方式積層於該偏光膜上之前述光學膜 者。偏光膜係具有從入射光取出直線偏光之功能者，其種 類並無特別限定。作為合適的偏光膜的例，可列舉如：聚 乙烯醇系樹脂中吸附配向有二色性色素之偏光膜。聚乙烯 醇系樹脂而言，除了作為醋酸乙烯的皂化物之聚乙烯醇之 外，尚可列舉部分甲縮醛化（formalized)聚乙烯醇、乙婦/ 醋酸乙烯共聚物的皂化物等。二色性色素而言，可採用碘 或一色性的有機染料。又，聚乙稀醇的脫水處理物或聚氯 323807 25 201238755 乙烯的脫鹽酸處理物的多烯配向膜亦能成為偏光膳。偏光 膜之厚度通常為5至80_左右。 本發明之偏光板可為於上述偏光膜的單面或雙面（通 常為單面）積層本發明之光學骐者，亦可為於上述偏光膜的 一邊的面上積層透明保護層，於另一面積層本發明之光學 膜者此時’光學膜亦具有作為偏光膜之透日祕護層（保護 膜）之功能。如於光學膜之樹脂Μ 102賦予表面凹凸形狀 時-亥树月曰層可作為防眩層之功能。透明保護層$藉由使 用接著料將透日續脂難合之方法或塗佈含有透明樹脂 之塗佈液之方法等形成於偏光膜上 。同樣，本發明之光學 膜’可使用接著劑等貼合於偏光膜上。 成為透明保護層之透明樹脂膜，較佳為透明性或機械 強度'_熱安錄、水分屏蔽性等優異者，具有此種性質者， 可例二如·由二醋酸纖維素、二醋酸纖維素、醋酸丙酸纖 維素等醋酸纖維料纖維素㈣脂；聚碳動旨系樹脂；聚 :::酯、聚甲基丙烯酸曱酯等(甲基)丙烯酸酯系樹脂； Ϊ乙酸乙二sl、聚萘二甲酸乙二酯等以旨系樹脂； 笨乙嫌稀核狀聚烯烴系樹脂；環狀聚馳系樹脂； 、树脂，聚碾；聚_ :聚氯乙婦系樹 =二=脂膜’可為光學等方向… 置中時的視角的補償為目的’亦可為光學異方 〈畫像顯示裳置〉 本發明之晝像顯示裝置係經組合上述本發明之偏光 323807 26 201238755 板，及將各種資訊放映於畫面之晝像顯示元件者。本發明 - 之晝像顯示裝置的種類，並無特別限定，除了使用液晶面 . 板之液晶顯示器（LCD)之外，尚可例舉：布勞恩管（陰極射 線管：CRT)顯示器、電漿顯示面器（pDp)、場效發射顯示器 (fed)、表面傳導型電子發射元件顯示器（SED)、有機el 顯示器、雷射顯示器、投影電視機的螢幕等。 例如’將本發明之偏光板配置於液晶晶胞上以製造液 晶面板時，偏光板係以其樹脂層102作為外側的方式配置 於液晶晶胞上。其他的晝像顯示裝置亦相同。光學祺可配 置於晝像顯示元件之目視側，亦可配置於背光源側。或者’ 亦可配置於其兩邊。如將光學膜配置於目視侧時，則光學 膜可作為硬塗膜、光擴散膜、防眩膜或抗反射膜等而發揮 功能。另一方面，如將光學膜配置於背光源側時，則光學 膜可作為使入射於液晶晶胞之光擴散，以防止波紋等用之 光擴散膜（擴散板）等而發揮功能。 實施例 以下，將舉出實施例以更詳細方式說明本發明内容， 惟本發明並不因此限定於此等實施例。 實施例1 將下述成分混合以調製成紫外線硬化性之塗佈液。 •紫外線硬化性樹脂：新戊四醇三丙烯酸酯60重量份及多官 能胺基曱酸乙酯化丙烯酸酯（六亞曱基二異氰酸酯與新戊四 醇三丙烯酸酯之反應生成物）40重量份、 •光聚合起始劑：「Lucirin TPO」（BASF公司製，化學名： 27 323807 201238755 2, 4, 6-二甲基苄醯基二苯基氧化膦）5重量份、 •界面活性劑.非反應性界面活性劑「Βγκ_355〇」（Βγκ公司 製’以聚㈣酸錢作為主鏈骨架之聚⑪氧烧改質丙稀酸聚 人物） η ° 〇· 5重量份（聚合物成分重量）、 •稀釋溶劑：醋酸乙酯 1〇〇重量份 將上述塗佈液使用凹版塗佈機塗佈於厚度8〇/zm的三 醋酸纖維素（TAC)膜（基材膜）以形成塗佈層，而製得基材膜 與塗佈層所成之積層體。使所得積層體在乾燥爐中乾燥後， 將以表面成為鏡面之方式研磨處理之鍍絡親，使用爽棍按 壓於積層體的塗佈層表面以使其密著。在此狀態下，從基 板膜側，以UVA最大照度成為7〇〇mW/cm2，UVA之光累積 光置成為300mJ /cm2之方式照射紫外線，以使塗佈層硬化。 然後，從鑛鉻輕剝離積層體，製得由紫外線硬化性樹脂之 硬化物所構成之樹脂層的平均獏厚為1〇/zm之光學膜。 <比較例1> 除了採用反應性界面活性劑ΓΒγκ_ϋν35〇〇」（Βγκ公司 製，含有丙_基之_改質聚二甲基硬氧烧）作為界面活 性劑以外，其餘則與實施例i同樣方式，製作光學膜。 <比較例2〉 除了採用非反應性界面活性劑「ByK_UV35i〇」（βγκ公 司製，聚醚改質聚二甲基矽氧烷）作為界面活性劑以外，其 餘則與實施例1同樣方式，製作光學膜。 (抗皂化性之評估） 將實施例1及比較例中所製作之光學膜實施皂化處理 323807 28 201238755 (保持在40°C下之5. 0當量的氫氧化鉀水溶液中浸潰20秒 鐘後，加以水洗並乾燥），測定皂化處理前後之對樹脂層表 面的蒸館水之接觸角（對水接觸角）的變化量。對水接觸角 之測定，係使用協和界面化學股份有限公司製的接觸角計 「CA-X型」，測定5點中除去最大值及最小值後之3點平 均值，作為對水接觸角。 [表1 ] 實施例1 比較例1 比較例2 界面活性劑 ΒΥΚ-3550 BYK-UV3500 BYK-UV3510 對水接觸角 (。） 皂化前 86.5 84.2 85.5 皂化後 82.7 54.5 58.8 變化量 3.8 29.7 26. 7 從表1所示結果可知，由於使用以聚（甲基）丙烯酸酯 作為主鏈之界面活性劑，即可抑制因皂化處理所引起之樹 脂層表面的對水接觸角的降低，而能提升抗皂化性。 【圖式簡單說明】 第1圖係表示本發明之光學膜之較佳例之概略剖面 圖。 第2圖係表示本發明之光學膜之另一較佳例之概略剖 面圖。 第3圖係表示本發明之光學膜之另一較佳例之概略剖 面圖。 第4圖係表示本發明之光學膜之另一較佳例之概略剖 面圖。 29 323807 201238755 第5圖係表示用以製造本發明之光學膜的裝置的一例 之概略圖。 【主要元件符號說明】 100、 200 、 300 、 400 光學膜 101 基材膜 102 樹脂層（光學功能層） 103 透光性微粒子 201 捲出裝置 202 塗佈裝置 203 支撐輥 204 乾燥機 205 鏡面金屬製輥或壓花加工用金屬製輥 206 夾輥 207 剝離輥 208 紫外線照射裝置 209 捲取裝置 30 323807323807 4 201238755 Dyeing and other situations. As a method for solving the above problems, for example, a resin layer such as a hard coat layer formed on a TAC film disclosed in JPH10-268133-A is provided with a protective layer which is compatible with the test, thereby preventing the resin. The hydrophilicity of the surface of the layer. However, in this case, since the additional protective layer needs to be attached and peeled off after the saponification treatment, the increase in the manufacturing cost and the trouble of the manufacturing process are caused. A crosslinked polymer using a gas-containing polymer having a crosslinkable group is disclosed in JP2002-116323-A to constitute an outermost layer of the above resin layer, thereby suppressing a relationship between a substrate film and a resin layer caused by a saponification treatment. The adhesion of the adhesion or the optical function of the resin layer. In the optical film comprising a hard coat layer containing an active energy ray-curable resin as a main component in the base film, jP2〇〇9-i〇4〇54-A, by containing the active energy in the hard coat layer The linearly-bonded resin chemically bonded (meth) propyl sulfhydryl group and the (meth) propylene group having a silent alkyl group can improve the resistance of the hard (d) to the saponification treatment (the anti-deuteration effect of the present invention is to provide An optical film comprising a resin layer formed of an active ray-curable resin on a base film, which is not caused by a saponification point = a contact angle of a resin layer (4), a contact angle between a base and a resin, Further, it is another object of the present invention to provide a polarizing plate and an image display device using the above optical film, and the present invention provides a lower optical function of the resin layer. 323807 5 201238755 [1]. An optical film comprising a base film and a resin layer formed of a cured product of an active energy ray-curable resin on the base film, wherein the resin layer contains (meth) propylene oxime ester as a polymer of the main chain (2) The optical film described in tU, wherein the surfactant is a fluorine atom and/or a ruthenium atom in a side chain. [3] . [1] or [2] In the optical enthalpy, the resin layer is applied to the surface of the coating layer by applying a coating liquid containing the active energy ray-curable resin and the surfactant on the surface of the substrate. [4] The optical film according to [3], wherein the active energy ray is ultraviolet ray. [5] . such as [3] or [4] The optical film according to the invention, wherein the mold has a mold having a surface formed by a mirror surface or a mold having a concave-convex surface. [6] . A polarizing plate comprising a polarizing plate and a substrate film side opposite to each other An optical film according to any one of [n] to [5], wherein the polarizing film is provided on the polarizing film. [7] The image display device includes the polarizing plate described in [6]. And the image display element, wherein the polarizing plate is disposed on the image display side with the resin layer side being outside According to the present invention, there is provided an optical film comprising a resin formed of an active energy ray-curable resin on a base film, wherein the resin layer is excellent in saponification resistance. For example, a saponification can be provided by the present invention. The optical film of the resin layer before and after the treatment has a very small change in the water contact angle (for example, 5. or less). The light (4) of the invention of the present invention can be made by the coating liquid for forming a resin layer containing a predetermined surfactant. Since it is manufactured, it is not necessary to add a new manufacturing process, and it is also advantageous in terms of manufacturing efficiency and manufacturing cost. The Japanese optical film is suitable for a polarizing plate or a liquid crystal display device. [Embodiment] <Optical Film> Figs. 1 to 4 are schematic cross-sectional views showing preferred examples of the optical film of the present invention. The silk films 10A to 400 shown in Figs. 1 to 4 of the present invention are provided with a base film 1〇1, and a resin layer (optical work layer) 1积2 laminated on the base film 1〇丨. The enamel resin layer 1〇2 is a layer composed of a cured product of an active energy ray-curable resin, and includes a surfactant composed of a polymer having a poly(fluorenyl) acrylate as a main chain. In the optical film of the present invention, as shown in Fig. 1 or Fig. 3, the surface of the resin layer j〇2 may be composed of a flat surface, or as shown in Fig. 2 or Fig. 4, may be composed of a concave-convex surface. . Further, as shown in Figs. 3 and 4, the optically active particles 103 may be dispersed in the resin layer 1〇2 in accordance with the optical function imparted in the resin layer 1〇2. The optical film of the present invention is suitable for use in a liquid crystal display device or the like. For example, the resin layer 1〇2 can be used as a hard coat film for preventing hard damage caused by various external forces (hard c 〇at f丨lm) (sometimes containing light-transmitting fine particles); the resin layer 102 serves as a light diffusing layer for diffusing light emitted from the liquid crystal sheet for improving the viewing angle (containing light-transmitting fine particles as a light diffusing agent) The side light diffusion film; the resin layer 1 〇 2 serves as an anti-glare film having an anti-glare layer (sometimes containing light-transmitting fine particles) for preventing the reflection of 7 323807 201238755 external light or dazzling surface irregularities; An antireflection film composed of a low refractive index layer or a plurality of layers having different refractive indices (sometimes containing light transmissive microparticles); the resin layer 102 diffuses light incident on the liquid crystal panel to prevent A light diffusion film (diffusion plate) or the like on the back side of the light diffusing (Moir 6) or the like caused by the backlight unit (including a light-transmitting fine particle as a light diffusing agent). The hard coat film, the visual side diffusing film, the anti-glare film, and the anti-reflection film are generally used as a visual side protective film of the visual-side polarizing plate and are attached to the polarizing film (that is, disposed on the surface of the image display device). ). The back side light diffusion film is usually bonded to the polarizing film as a backlight side protective film of the backlight side polarizing plate. The optical film of the present invention will be described in detail below. [Base film] The base film 101 may be any light-transmitting material, and for example, a glass or a plastic film may be used. As the plastic film, it is sufficient as long as it has moderate transparency and mechanical strength. Specific examples thereof include a cellulose acetate resin such as TAC (cellulose triacetate), a polyester resin such as an acrylic resin, a polycarbonate resin, or polyethylene terephthalate, polyethylene, and poly A polyolefin resin such as propylene. The thickness of the base film 101 is, for example, 丨〇 to 500 vm, and is preferably from 1 to 300 μm, more preferably from 20 to 300 // m 0 from the viewpoint of film formation of the optical film, etc. [Resin layer The optical film of the present invention includes a resin layer (optical functional layer) 102 laminated on the base film 1〇1. The resin layer 102 is a layer composed of a cured product of an active energy ray-curable resin 8 323807 201238755, and contains a surfactant composed of a polymer having a poly(meth) acrylate as a main chain. Further, another layer (including an adhesive layer) may be provided between the base film 1 〇 1 and the resin layer 102. (1) Active energy ray-curable resin The active energy ray-curable resin may be an ultraviolet curable resin or an electron beam curable resin. For example, a polyfunctional (fluorenyl) acrylate compound is preferably used. The polyfunctional (fluorenyl) acrylate compound refers to a compound having at least two (indenyl) acryloxy groups in the molecule. Specific examples of the polyfunctional (meth) acrylate compound include, for example, an ester compound of a polyhydric alcohol and (mercapto) acryl, an ethyl methacrylate acrylate compound, and a fluorenyl group. A polyfunctional polymerizable compound containing two or more (meth)acryl fluorenyl groups, such as an acrylic acid-based compound or a (fluorenyl)propionic acid epoxy-based compound. In the case of a polyhydric alcohol, for example, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, 1,2-propylene glycol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol, polypropylene glycol can be exemplified. , 1,3-propanediol, butanediol, pentanediol, hexanol, neopentyl glycol, 2-ethyl-1,3-hexanediol, 2, 2'-thiodiethanol, 1,4- a dihydric alcohol such as cyclohexanedimethanol; such as trimethylolpropane, glycerin, neopentyl alcohol, diglycerin, dipentaerythritol, di-trihydroxydecylpropane or the like alcohol. The esterified product of a polyhydric alcohol and (mercapto)acrylic acid may specifically be exemplified by ethylene glycol di(meth)acrylate, diethylene glycol di(decyl)acrylate, and 1,6-hexane. Alcohol di(meth)acrylate, neopentyl glycol di(meth)acrylate, trishydroxypropyl propane tris(mercapto) acrylate, trishydroxy ethane ethane 9 323807 201238755 bis(indenyl) acrylate , tetrahydroxydecyl decane tri(meth) acrylate, 16-hexanediol bis(indenyl) acrylate, tetrahydrononyl decane tetra(indenyl) acrylate, pentaglycerol tri(meth)acrylic acid Ester, pentaerythritol tris(fluorenyl) acrylate vinegar, pentaerythritol tetrakis(meth) acrylate, glyceryl tris(decyl) acrylate, neopentyl alcohol tris(methyl) acrylate Ester, dipentaerythritol tetrakis(mercapto) acrylate, neopentyl pentoxide penta(indenyl) acrylate, dipentaerythritol hexa(indenyl) acrylate, and the like. The (mercapto) acetoacetic acid ethyl acetoacetate compound may, for example, be an isocyanate having a plurality of isocyanate groups in the molecule, and an ethyl urethane having a hydroxyl group (meth)acrylic acid derivative. The reactants. The organic isocyanic acid g having a plurality of dissimilar acid vinegar groups in the i molecule may, for example, be: /, methylene monoisocyanate, isophorone diisocyanate, methyl phenyl diisocyanate Sa, An organic isocyanate having two isocyanate groups, such as naphthalene diisocyanate, diphenylmethane diisocyanate, decyl diisocyanate, dicyclohexylmethane diisocyanate, etc., and these organic isocyanates are modified with isomeric cyanurate An organic isocyanate having three isocyanate groups in one molecule of the modification of the adduct and the modification of diuret. The (meth)acrylic acid derivative having a hydroxyl group may, for example, be 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate or 4-hydroxybutyl (meth)acrylate. , 2-hydroxybutyl (meth)acrylate, 2-hydroxyphenoxypropyl (meth)acrylate, neopentyl alcohol triacrylate, and the like. A preferred polyester (meth) acrylate compound is a vinegar ($ meth) acrylate obtained by reacting a hydroxyl group-containing polyester with (meth) acrylic acid. The polyester which is preferably used in the reduction is a transester-containing polyester obtained by a hydration reaction of a polyhydric alcohol with (iv) or a compound having a plurality of 323807 10 201238755 several groups and/or an acid anhydride thereof. The polyhydric alcohol can be exemplified by the same as the above-mentioned compound. Further, in addition to the polyhydric alcohol, phenol may be exemplified by bisphenol A. The carboxylic acid may, for example, be formic acid, acetic acid, butylcarboxylic acid or benzoic acid. The compound having a plurality of rebel groups and/or an acid anhydride thereof may, for example, be maleic acid, citric acid, fumaric acid, itaconic acid, adipic acid, p-citric acid, maleic anhydride, ugly anhydride, Benzotricarboxylic acid, cycloheximide diacid needle, etc. Among the above-mentioned polyfunctional (meth)acrylic acid vinegar compounds, from the viewpoint of improving the strength of the cured product or easiness of obtaining it, hexanediol di(meth)acrylate and neopentyl are preferred. Diol di(meth)acrylate, diethylene glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate, trimethylolpropane tris(decyl)acrylate, pentaerythritol An ester compound such as tris(meth)acrylate or dipentaerythritol hexa(indenyl)acrylate; an adduct of hexamethylene diisocyanate with 2-hydroxyethyl (meth)acrylate; isophorone II An adduct of an isocyanate with 2-hydroxyethyl (meth) acrylate; an adduct of methyl phenyl diisocyanate with 2-hydroxyethyl (meth) acrylate; an adduct modified with isophorone diisocyanate An adduct of 2-hydroxyethyl (meth)acrylate; and an adduct of diuret-modified isoflurane diisocyanate and 2-hydroxyethyl (meth)acrylate. Further, these polyfunctional (meth) acrylate compounds may be used singly or in combination with other cockroaches or the like. The active energy ray-curable resin may contain a monofunctional (meth) acrylate compound in addition to the above polyfunctional (meth) acrylate compound. The monofunctional (meth) acrylate compound may, for example, be methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, or (methyl) 11 323807 201238755 acrylate Butyl ester, tert-butyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, 2-(meth) acrylate Hydroxybutyl ester, 2-hydroxy-3-phenoxypropyl (meth)acrylate, glycidyl (mercapto)acrylate, acryloylmorpholine, N-ethylene oxazolone, (methyl) Tetrahydrofurfuryl acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isodecyl (meth) acrylate, acetonitrile (mercapto) acrylate, (methyl) Benzyl acrylate, 2-ethoxyethyl (meth)acrylate, 3-methoxybutyl (meth)acrylate, ethyl carbitol (meth) acrylate, (meth) acrylate Phenoxylate, ethylene oxide modified phenoxy (meth) acrylate, propylene oxide (meth) acrylate, sulfhydryl (Meth) acrylate, ethylene oxide modified (meth) acrylate, propylene oxide modified nonyl phenol (meth) acrylate, decyl diethylene glycol (meth) acrylate, 2- (A) (acrylic acid) 2-hydroxypropyl phthalate, dimethylaminoethyl (meth) acrylate, methoxy triethylene glycol (meth) acrylate, etc. Esters. These compounds may be used alone or in combination with one or more of the other compounds. Further, the active energy ray-curable resin may contain a polymerizable oligomer. The hardness of the resin layer 1〇2 can be adjusted by including a polymerizable oligomer. The polymerizable oligomer may be, for example, the aforementioned polyfunctional (fluorenyl) acrylate compound, that is, an ester compound of a polyhydric alcohol and (meth)acrylic acid, a (meth)acrylic acid urethane amide compound, a poly An oligomer such as a dimer or a trimer such as a vinegar (methyl) acetoacetate compound or a (meth)acrylic acid epoxy ester. The other polymerizable oligomer may, for example, be a reaction of a polyisocyanate having at least two isocyanate groups in the molecule with a polyol having at least one (meth) 323807 12 201238755 acryloxy group. Amino oxime ethyl acrylate oligomer. The polyisocyanate may, for example, be a polymer of hexamethylene diisocyanate, isophorone diisocyanate, fluorenylphenyl diisocyanate, diphenyldecane diisocyanate or decyl diisocyanate, etc., at least The one (mercapto) acryloxyl polyol is a hydroxyl group-containing (meth) acrylate obtained by esterification of a polyhydric alcohol with (mercapto)acrylic acid, and examples of the polyhydric alcohol include: 1,3-butanediol, 1,4-butanediol, 1,6-hexanediol, diethylene glycol, triethylene glycol, neopentyl glycol, polyethylene glycol, polypropylene glycol, trioxane Acetylene, glycerin, neopentyl alcohol, dipentaerythritol and the like. The polyol having at least one (fluorenyl) acryloxy group is a group in which an alcoholic hydroxyl group of the polyol is esterified with (meth)acrylic acid, and the alcoholic hydroxyl group remains in the molecule. Further, examples of the other polymerizable oligomers include, for example, a reaction of a compound having a plurality of carboxyl groups and/or an acid anhydride thereof with a polyol having at least one (fluorenyl) acryloxy group. Polyester (fluorenyl) acrylate oligomer. The compound having a plurality of carboxyl groups and/or its acid anhydride can be exemplified by the same as those described for the polyester (meth) acrylate of the above polyfunctional (fluorenyl) acrylate compound. Further, the polyol having at least one (meth) propylene oxime group may be the same as those described in the above (meth)acrylic acid urethane oligomer. In addition to the polymerizable oligomer as described above, as the ester (mercapto)acrylic acid ethyl decanoate, a hydroxyl group-containing polyester, a hydroxyl group-containing polyether or a hydroxyl group-containing (fluorenyl group) may be exemplified. A compound obtained by reacting an isocyanate with a hydroxyl group of an acrylate. Preferably, the transuretic-containing polyester is a transesterified polyester obtained by the acetalization of a compound having a polyhydric acid or a compound having a plurality of lonyl groups and/or an acid thereof. In the case of a polyhydric alcohol or a compound having a plurality of groups and/or an acid anhydride thereof, a polyester (meth) acrylic acid vinegar compound such as a polyglycol (meth) acrylic acid vinegar compound can be exemplified. The same person is recorded. Preferably, the polyether having a radical group-containing polyfluorene is added to the polyol to form one or more kinds of epoxy-fired and/or bucon-containing polyethers. The polyol can be used in the same manner as the above-mentioned base-containing polymerizer. As the preferred (fluorenyl) acrylate vinegar which can be used, it can be exemplified as the methacrylate of the (meth) propylamino phthalic acid acrylate. The same is true of the carrier. The isocyanate is preferably a compound having one or more isocyanate groups in the molecule, particularly preferably hydrazine, hexamethylene diisocyanate or isophorone diisocyanate. A two-membered isocyanate compound. These polymerizable oligomer compounds may be used singly or in combination with one or more of them. (2) Surfactant In the optical film of the present invention, as the surfactant contained in the resin layer 1〇2, an interfacial activity composed of a polymer having poly(fluorenyl) acrylate as a main chain is used. Agent. The surfactant itself may be used as a surfactant composed of a polymer having a poly(meth)acrylate as a main chain, and a solution obtained by dissolving the polymer in a solvent may also be used. The surfactant is contained in the resin layer 102, and the saponification resistance can be increased by raising the leveling property of the resin layer 1〇2. Specifically, the change in the water contact angle of the resin layer 102 before and after the saponification treatment can be reduced to, for example, 5. The extent of the following. 14 323807 201238755 η If tree month layer 102 #Anti-staining property, or photoreceptor of resin layer ig2 and substrate film adhesion (thus 'endurance of optical film), resin layer H) 2 Caused a decrease. (4) The effect of the above-mentioned surfactant is improved as compared with the known surfactant (the surfactant composed of a polymer which is a main chain of polysiloxane), which is a polymer in the surfactant. The primary bond of poly(methyl)acrylic acid vinegar is based on (f-based) propionate as the polymer bond of the repeating unit* and as (meth)acrylic acid, (meth)acrylic acid can be used. Dilute acid methyl vinegar, (meth) propylene 酉 酉 酉 day, (meth) propyl vinegar, (methyl) propylene vinegar vinegar, etc. (methyl) propyl acetonate vinegar or poly glycerol (methyl ) Various kinds of (indenyl) propionate or derivatives thereof. The poly(methyl)-Lyry may be a single polymer composed of one type of (meth)acrylic acid s, or a copolymer composed of two or more kinds of (mercapto) acrylates. At the above interface, the polymer in the lingual agent is preferably one which contains a fluorine atom and/or a cerium atom from the viewpoint of enhancing resistance to specificity and leveling property; Any of the examples in which a fluorine atom and/or a (tetra) is contained in a form, and a fluorine atom and/or a side chain of the (tetra) group is contained, for example, a fluorinated alkyl group containing a nitrogen atom of a burnt group or a king atom substituted by a fluorine atom. , polyoxyalkylene groups, polyalkylene groups, fluorine-containing polyriches, and derivatives thereof. The method for introducing such a side chain is not particularly limited, and may be, for example, a terminal double bond (end (mercapto)) propylene which can be copolymerized with a polymerized oxime group which forms an interfacial active shot. Base, terminal (fluorenyl) acrylamide, terminal B county, terminal vinyl county, etc.), the money contains a cationic monomer containing 323807 15 201238755 fluoro-functional and / or decyl-modified functional group The method of copolymerization, and the like. In order to adjust the polarity of the surfactant or the compatibility with the solvent, an aliphatic hydrocarbon group (including an alicyclic hydrocarbon group) or an aromatic hydrocarbon group or the like may be introduced into the side chain if necessary. Further, it may contain a hetero atom such as N or P in the side chain. The method of introducing such a side chain is not particularly limited, and may be, for example, a terminal double bond having a (meth) acrylate copolymerizable with a main chain forming a polymer in a surfactant (end (methyl) a propylene group, a terminal (fluorenyl) acrylamide group, a terminal vinyl ether group, a terminal vinyl ester group, etc.), and a polymerizable single group having an aliphatic hydrocarbon group, an aromatic hydrocarbon group or a functional group containing a hetero atom a method of copolymerizing a body, or a (mercapto) acrylate as a main chain of a polymer forming a surfactant, using a (nonyl) acrylate having a reactive functional group such as a hydroxyl group and reacting the functional group A method of polycondensation of a compound having an aliphatic hydrocarbon group, an aromatic hydrocarbon group or a functional group containing a hetero atom. Further, a more specific example of the surfactant composed of a polymer having a poly(fluorenyl) acrylate as a main chain is exemplified by an interface of a poly(indenyl)alkyl acrylate as a main chain. In the fluorine-containing radically polymerizable copolymer described in "BYK-3550" (manufactured by BYK Co., Ltd.) or jp2〇i〇-196044-A and JP2010-235784-A, the main chain is (fluorenyl). Acrylates, etc. The amount of the above-mentioned surfactant in the resin layer 102 is preferably from 0.25 parts by weight, more preferably from 0.2 to 3 parts by weight, based on 1 part by weight of the active energy ray-curable resin. When the content of the surfactant is 323807 16 201238755 When 100 parts by weight of the active energy ray-curable resin is 0.1 part by weight or less, it is difficult to obtain a sufficient anti-saponification improving effect. On the other hand, when it exceeds 5 parts by weight or more, the hardness or the scratch resistance may be lowered to impair the properties or functions of the resin layer 102. (3) The light-transmitting fine particle-transmitting fine particles 103 are not particularly limited, and for example, an acrylic resin, a melamine resin, a polyethylene, a polystyrene, an organic polyoxyn resin, or an acrylic-styrene can be used. Organic fine particles formed by copolymers or the like, or inorganic fine particles formed by carbonic acid, oxidized stone, oxidized, strontium carbonate, barium sulfate, titanium oxide, glass, or the like. Further, balloons or beads of the organic polymer may also be used. These light-transmitting fine particles 103 may be used alone or in combination of two or more. The shape of the light-transmitting fine particles 103 may be any of a spherical shape, a flat shape, a plate shape, a needle shape, and an indefinite shape. The particle diameter or refractive index of the light-transmitting fine particles 103 is not particularly limited. However, when the optical film is a light-diffusing film or an anti-glare film, the particle diameter is preferably 0.5 from the viewpoint of effectively exhibiting an internal mist. Am to 20am * 1 lift & Further, for the same reason, the difference in refractive index of the light-transmitting fine particles 103 of the active energy ray-curable resin after curing is preferably in the range of 〇4〇. The content of the light-transmitting fine particles 103 is usually from 3 to 6 Å (five) lining to 50 parts by weight with respect to 100 parts by weight of the active material. When the content of the light-transmitting fine particles + 1 〇 3 is less than 3 parts by weight based on 1 part by weight of the j-line curable resin, there is a possibility that the light diffusing property or the anti-glare property is acceptable. β 匕 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 [Surface Shape of Resin Layer, etc.] The surface shape of the resin layer 102 can be, for example, a flat surface. Such a flat surface '❹ has a mold made of a mirror (4) as a mold, and the surface of the mold is pressed against a resin layer before curing (* coating with a coating liquid containing an active energy ray-curable resin and a surfactant) The state of the surface of the layer is hardened, and the mirror surface is transferred onto the surface of the resin layer 1Q2 to be formed. Further, by hardening the coating layer without using a mold, a resin layer having a relatively flat surface can be obtained. The resin layer 102 may also have surface irregularities. Such a surface unevenness is formed by using a mold having a concave-convex surface as a mold, and pressing the uneven surface of the mold against the surface of the coating layer, and transferring the uneven surface to the surface of the resin layer 102. Further, the (four) mold can also have a resin layer having surface irregularities by including light-transmitting fine particles in the coating layer. Here, it is known that when a resin layer is formed, when the surface of the mold is pressed against the surface of the coating layer, when the coating layer is irradiated with an active energy ray to be hardened, the effect of improving the saponification resistance by the surfactant may be Increase. Although the detailed reasons for these are not yet determined, it is presumed that by pressing the mold, the surfactant takes a different alignment state than when the mold is not pressed. The resin layer 102 may be a single layer structure or a multilayer structure. In the latter case, at least the outermost layer contains the above surfactant. Single layer construction 323807 18 201238755 ! For example, a hard coat layer, a light diffusion layer, an antiglare layer, an antireflection layer (a low refractive index layer, etc.), and the like can be given. Examples of the multilayer structure include, for example, an antireflection layer formed of a layer structure (an antireflection layer formed of a plurality of layers having different refractive indices, etc.), or a hard coat layer, a light diffusion layer, or an antiglare layer. A combination with an antireflection layer, and the like. [Method for Producing Optical Film] Next, the method for producing the optical film according to the present invention will be described. The optical film of the present invention can be produced smoothly (at high efficiency and at low cost) in accordance with the method comprising the following steps (A) and (B). (A) applying a coating liquid containing an active energy ray-curable resin and a surfactant composed of a polymer having poly(methyl)propionate as a main chain on the base film 1〇1, a step of forming a coating layer; () a step of hardening the coating layer by means of a light energy line. (1) Step (A) The coating liquid used in the above (1) contains at least an active energy ray L Γ and a polymer which is a main chain of poly(fluorenyl) propylene as a main chain ==. The surfactant is usually further contained in a photopolymerization initiator (radical polymerization, etc., if necessary, may also contain a light-transmitting fine particle 1〇3, an organic solvent' light-twisting agent, a dispersing agent, an antistatic agent, and an anti-static agent. Other components such as stains. For photopolymerization initiators, ϋ丞田λ « λ . such as acetophenone = starting: 丨, benzoin (be_in) photopolymerization initiator, benzamidine The present invention is a photopolymerization initiator, a thioxanthone (10) surface, a silky initiator, a tris(4), an integrated initiator, a bismuth (o-e) photopolymerization initiator, and the like. Further, as the initiator 323807 19 201238755, the initiator ' can also be, for example, 2,4,6-trimethyl benzhydryldiphenylphosphine oxide, 2,2'-bis(o-phenyl)-4, 4',5,5,-tetraphenyl-1,2'-biimidazole, 10 dibutyl-2-chloroacridone, 2-ethylhydrazine, diphenylethylenedione (benzil ), 9, 10-phenanthrenequinone, camphorquinone, phenylglyoxylate, titanocene compound, photopolymerization initiator used relative to active energy ray hardenability The resin is usually used in an amount of from 5 to 2 parts by weight, preferably from 1 to 5 parts by weight. In the organic solvent, an aliphatic hydrocarbon such as hexane, cyclohexane or octane; an aromatic hydrocarbon such as benzene or hydrazine; or ethanol, 1-propanol, isopropanol or Alcohols such as alcohols and cyclohexanol; ketones such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; ethyl acetate (10), diced acetic acid, isobutyl ethane acetate (IV), and B Ethylene glycol monoethyl bond, dioxane = ethylene, propylene glycol monomethyl shrine, propylene glycol monoethyl ether, etc. B = polyvinyl alcohol monodecyl ether acetic acid vinegar, propylene glycol 曱 曱 _ 酉曰Ethers; 2_methoxyethanol, ethoxybutoxyethanol and other cellosolves;: = di-ethanol, nodoxyethoxy) ethanol, 2_(2 f oxy ethoxylated alcohol Such as carbitol, etc. The solvent can be used alone, and the necessary soil ethoxy) B is used. It is necessary to evaporate the above organic solvent after coating. 2 can be mixed in several ranges within the range of the step of the illusion. Further, the desired boiling point is preferably in the range of 0·ikPa JL 20 kPa. <Saturated vapor pressure, 'When the light-transmitting fine particles 103 are used, the optical characteristics and the surface (four) shape are homogenized, and the dispersion of the light-transmitting 323807 20 201238755 fine particles 103 in the liquid film of the optical film is made equal. Directional dispersion is preferred. The application of the coating liquid to the base film 101 may be, for example, a gravure coating method, a micro gravure coating method, a roll coating method, a knife coating method, an air knife coating method, or a kiss coating method. ), the die coating method, and the like. For the purpose of improving the coating property of the coating liquid or improving the adhesion to the resin layer 102, various surface treatments may be applied to the surface of the base film 101 (the resin layer side surface). The surface treatment may, for example, be a corona discharge treatment, a glow discharge treatment, an acid surface treatment, an alkali surface treatment, or an ultraviolet irradiation treatment. Further, another layer such as a primer layer may be formed on the base film 101, and a coating liquid may be applied to the other layer. (2) Step (B) In this step, after the coating layer is dried (solvent removal) as needed, the coating layer is cured by irradiation of an active energy ray to form a resin layer 1 〇 2 . In this case, when the surface of the mold is pressed against the surface of the coating layer, the active energy ray is irradiated from the side of the base film 101 to cure the coating layer, and the saponification resistance by the surfactant can be further improved. Improve the effect. Since the mold is used to impart a desired shape to the surface of the resin layer 102, it has a surface shape formed by the transfer structure of the desired shape. When the coating layer is hardened by pressing the surface shape against the surface of the coating layer on the surface of the coating layer, the surface shape of the mold can be transferred to the surface of the resin layer 102. The mold may, for example, be a mold having a mirror-finished surface (e.g., a mirror roll) and a mold having a concave-convex surface (for example, an embossing roll). When the casting mold has a concave-convex surface, the pattern of the concave-convex shape may be a regular pattern, or may be a random pattern, or a specific size of one or more types of 21 323807 201238755 irregular imitation irregular shape 7 where ~ ~ & A r prevents the dry image of the reflected light caused by the surface shape from being colored, preferably a random pattern or an irregular pattern. The outer shape of the mold is not particularly limited. It may be a flat, cylindrical or cylindrical roll, but from the viewpoint of continuous productivity, it is preferably a cylindrical or cylindrical shape such as a mirror-like embossing roll or the like. Mold. At this time, a predetermined surface shape is formed on the side surface of the cylindrical or cylindrical molding. The material of the base material of the mold is not particularly limited, and may be appropriately selected from the group consisting of metal, glass, carbon, resin, and the like. However, it is preferably a metal from the viewpoint of addition of I. For the metal material to be used, from the viewpoint of cost, for example, Ilu, iron, or an alloy mainly composed of sho or iron may be mentioned. The method of producing the mold may be, for example, a method of performing electroless nickel plating after the substrate is ground and subjected to sandblasting (JP2006-53371-A); after the substrate is subjected to copper plating or nickel plating After grinding, and performing sandblasting, the method of performing the chromium (JP2007-187952-A); performing the copper plating or the nickel plating, grinding the 'etching step, performing the etching step or the copper plating step, and then implementing the chain Method for chrome (JP2007-237541-A); after performing copper plating or nickel on the surface of the substrate, grinding is performed on the surface to be coated to form a photosensitive resin, and the pattern is exposed on the photosensitive resin film. Developing, using a developed photosensitive resin as a mask to perform an etching treatment, peeling off the photosensitive resin film, and then performing an etching treatment to passivate the uneven surface, and then performing chrome plating on the formed uneven surface; A method of cutting a substrate into a mold by a cutting tool using a working machine such as a lathe (W02007/077892-A) 22 323807 201238755, and the like. The surface irregularities and shapes of the mold formed by the irregular pattern or the irregular pattern, for example, will be: FM Serening, DLDS (dynamic low-discrepancy sequence) method, utilization The method of microphase separation pattern of the bulk copolymer or the random pattern formed by the band pass filter method is exposed on the photosensitive resin film, and the developed photosensitive resin film is used as a mask to perform etching treatment. . The active energy ray can be appropriately selected from ultraviolet rays, electron beams, near ultraviolet rays, visible rays, near infrared rays, infrared rays, X rays, etc., depending on the type of active energy-setting curable resin contained in the coating liquid. Among them, ultraviolet rays and electron beams are preferred because they are easy to handle and can be covered. For the ultraviolet light source, it can be used: low-pressure mercury lamp, medium-pressure mercury lamp, high-pressure mercury lamp, ultra-high pressure mercury lamp, carbon arc lamp, metal tooth lamp, xenon arc lamp, and the like. Further, an ArF excimer laser, a KrF excimer laser, an excimer lamp, or a synchrotron radiation may be used. Among these, it is more suitable to use ultra-high pressure mercury lamps, high pressure mercury lamps, low pressure mercury lamps, xenon arc lamps, and metal halogen lamps. Further, as the electron beam, for example, a Cockcroft-Walton's type, a Van de Graff type, a resonant transformer type, an insulated core transformer may be exemplified. An electron beam having an energy of 23 to 100 OKeV, preferably 1 to 300 KeV, 23 323807 201238755, which is emitted by various electron ray accelerators such as a type, a linear type, a Dynamitron type, and a high frequency type. Next, a preferred embodiment of the method for producing an optical film of the present invention will be described. In the production method of the preferred embodiment, in order to continuously produce the optical film of the present invention, the step of continuously feeding the base film 101 wound into a roll is carried out, and the active energy ray-curable resin is applied. And a step of drying the coating layer while pressing the surface of the coating layer against the surface of the coating layer by using a coating liquid of a surfactant of a poly(fluorenyl) acrylate as a main chain and drying it as needed; The step of taking up the resulting optical film. Such a manufacturing method can be carried out by, for example, a manufacturing apparatus shown in Fig. 5. Hereinafter, a manufacturing method of the preferred embodiment will be described with reference to Fig. 5. First, the substrate film is continuously wound up by the unwinding device 201. Then, the coating liquid was applied onto the substrate film which was taken up, using the coating device 20 and the back up roll 203 opposed thereto. Next, when the solvent is contained in the coating liquid, it is dried by the dryer 204. Next, the base film 101' having the coating layer is placed between the mirror metal clad or the embossing metal roll 205 and the nip roller 206, with the coating layer and the mirror metal roll or embossing The metal roll 205 for processing is wound in a close manner. Thereby, the mirror surface of the mirror metal roll or the uneven surface of the metal roll for embossing is pressed on the surface of the coating layer to transfer the surface shape. Then, the base film 101 is wound around the mirror metal roll or the metal roll 2〇5 for embossing, and the base film 101 is penetrated, and the coating layer is irradiated with ultraviolet rays from the ultraviolet irradiation device 2〇8. The coating layer is hardened. Since the irradiated surface is made warm by ultraviolet irradiation, the mirror metal roll or the metal roll 205 for embossing is preferably provided inside to adjust the surface temperature to room temperature 323807 24 201238755 • Cooling device around 80 °C. Further, the ultraviolet irradiation device 208 can use -1 or a plurality of units. The base film 1〇1 (optical film) on which the resin layer 102 is formed is peeled off from the mirror metal roll or the metal roll 205 for embossing by the peeling roll 207. The optical film produced as described above was taken up by a winding device 209. In this case, for the purpose of protecting the resin layer 102, a protective film made of polyethylene terephthalate or polyethylene may be attached to the surface of the resin layer 102 via an adhesive layer having removability. Take the roll. Further, after being peeled off from the mirror metal roll or the metal iridium 205 by the peeling roll 207, additional ultraviolet irradiation may be performed. Further, the base film 1〇1 in which the uncured coating layer is formed may be peeled off from the mirror metal roll or the embossing metal 205, and then irradiated with ultraviolet rays to be hardened instead of the mirror metal. A metal roll 205 for roll or embossing is irradiated with ultraviolet rays. <Polarizing Plate> The polarizing plate of the present invention includes a polarizing film and the optical film laminated on the polarizing film so as to be able to face the polarizing film on the side of the substrate film 1〇1. The polarizing film has a function of taking out linearly polarized light from incident light, and the kind thereof is not particularly limited. As an example of a suitable polarizing film, for example, a polarizing film in which a dichroic dye is adsorbed and aligned in a polyvinyl alcohol-based resin can be mentioned. In addition to the polyvinyl alcohol which is a saponified product of vinyl acetate, the polyvinyl alcohol-based resin may, for example, be a partially hydrated polyvinyl alcohol or a saponified product of a vinyl/vinyl acetate copolymer. For the dichroic dye, an iodine or a one-color organic dye can be used. Further, the dehydrated material of polyethylene glycol or polychlorinated 323807 25 201238755 The polyene alignment film of the dehydrochlorinated product of ethylene can also be used as a polarizing diet. The thickness of the polarizing film is usually about 5 to 80 Å. The polarizing plate of the present invention may be formed by laminating the optical lens of the present invention on one side or both sides (usually one side) of the polarizing film, or may be a transparent protective layer on one side of the polarizing film. One area layer of the optical film of the present invention At this time, the 'optical film also functions as a transparent layer (protective film) for the polarizing film. When the resin Μ 102 of the optical film imparts a concave-convex shape to the surface, the eucalyptus layer functions as an anti-glare layer. The transparent protective layer $ is formed on the polarizing film by a method of using a binder to coat the resin or a method of applying a coating liquid containing a transparent resin. Similarly, the optical film 'of the present invention' can be attached to the polarizing film using an adhesive or the like. The transparent resin film which is a transparent protective layer is preferably excellent in transparency or mechanical strength, such as thermal recording and moisture barrier properties, and may have such properties as, for example, cellulose diacetate or diacetate. Acetate fiber cellulose (IV) such as cellulose acetate propionate; polycarbonate resin; poly(:: ester, poly(meth) acrylate) (meth) acrylate resin; , polyethylene naphthalate, etc. for the purpose of resin; stupid B-like nucleus polyolefin resin; ring-shaped polyurethane resin; resin, poly-grinding; poly_: polychloroethylene tree = two = The lipid film 'can be in the direction of optics or the like. For the purpose of compensating the viewing angle at the time of the object', the optical image can also be an optical image. The image display device of the present invention is combined with the above-described polarized light of the present invention 323807 26 201238755 And display various information on the image display component of the screen. The type of the image display device of the present invention is not particularly limited, and besides a liquid crystal display (LCD) using a liquid crystal panel, a Braun tube (cathode ray tube: CRT) display or electricity can be exemplified. Pulp display (pDp), field emission display (fed), surface conduction type electron emission device display (SED), organic EL display, laser display, screen of projection television, and the like. For example, when the polarizing plate of the present invention is placed on a liquid crystal cell to produce a liquid crystal panel, the polarizing plate is disposed on the liquid crystal cell such that the resin layer 102 is outside. The other key image display devices are also the same. The optical port can be placed on the visual side of the image display element or on the backlight side. Or ' can also be configured on both sides. When the optical film is disposed on the visual side, the optical film can function as a hard coat film, a light diffusion film, an anti-glare film, or an anti-reflection film. On the other hand, when the optical film is disposed on the backlight side, the optical film functions as a light diffusion film (diffusion plate) for diffusing light incident on the liquid crystal cell to prevent moiré or the like. EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the invention is not limited thereto. Example 1 The following components were mixed to prepare a coating liquid of ultraviolet curability. • UV curable resin: 60 parts by weight of pentaerythritol triacrylate and polyfunctional amine decanoic acid acrylate (reaction product of hexamethylene diisocyanate and pentaerythritol triacrylate) 40 weight , Photopolymerization initiator: "Lucirin TPO" (manufactured by BASF Corporation, chemical name: 27 323807 201238755 2, 4, 6-dimethylbenzylphosphonium diphenylphosphine oxide) 5 parts by weight, • surfactant . Non-reactive surfactant "Βγκ_355〇" (made by Βγκ, 'Poly 11 Oxygen-fired modified acrylic acid group with poly(tetra) acid money as the main chain skeleton) η ° 〇· 5 parts by weight (polymer component weight) • Dilution solvent: ethyl acetate 1 part by weight The above coating liquid was applied to a triacetate (TAC) film (base film) having a thickness of 8 Å/zm using a gravure coater to form a coating. The layer was formed to obtain a laminate of the substrate film and the coating layer. After the obtained laminate was dried in a drying oven, the plating layer which was polished to the surface of the laminate was pressed and pressed against the surface of the coating layer of the laminate to adhere thereto. In this state, ultraviolet rays were irradiated from the substrate film side to a maximum illuminance of UVA of 7 〇〇mW/cm2, and the cumulative light of UVA was set to 300 mJ/cm2 to cure the coating layer. Then, the laminate was lightly peeled off from the chrome, and an optical film having an average thickness of 1 Å/zm of the resin layer composed of the cured product of the ultraviolet curable resin was obtained. <Comparative Example 1> Except that the reactive surfactant ΓΒγκ_ϋν35〇〇 (manufactured by Βγκ, propylene-based modified polydimethyl oxyoxylated) was used as the surfactant, the remainder was the same as Example i. In the same manner, an optical film is produced. <Comparative Example 2> The same procedure as in Example 1 was carried out except that a non-reactive surfactant "ByK_UV35i" (a polyether modified polydimethyl siloxane) manufactured by ??k company was used as a surfactant. Make an optical film. (Evaluation of anti-saponification property) The optical film produced in Example 1 and the comparative example was subjected to saponification treatment 323807 28 201238755 (after being immersed in an aqueous solution of 0.5 equivalent of potassium hydroxide at 40 ° C for 20 seconds) It was washed with water and dried), and the amount of change in the contact angle (water contact angle) to the steaming water on the surface of the resin layer before and after the saponification treatment was measured. For the measurement of the water contact angle, a contact angle meter "CA-X type" manufactured by Kyowa Interface Chemical Co., Ltd. was used, and the average value of the three points after removing the maximum value and the minimum value at five points was measured as the water contact angle. [Table 1] Example 1 Comparative Example 1 Comparative Example 2 Surfactant ΒΥΚ-3550 BYK-UV3500 BYK-UV3510 Water contact angle (.) 86.5 before saponification 84.2 85.5 82.7 after saponification 54.5 58.8 Change amount 3.8 29.7 26. 7 From As shown in the results shown in Table 1, it is understood that the use of a poly(meth) acrylate as a main chain surfactant can suppress the decrease in the water contact angle of the surface of the resin layer caused by the saponification treatment, and can improve the anti-saponification. Sex. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a preferred embodiment of the optical film of the present invention. Fig. 2 is a schematic cross-sectional view showing another preferred embodiment of the optical film of the present invention. Fig. 3 is a schematic cross-sectional view showing another preferred embodiment of the optical film of the present invention. Fig. 4 is a schematic cross-sectional view showing another preferred embodiment of the optical film of the present invention. 29 323807 201238755 Fig. 5 is a schematic view showing an example of an apparatus for producing the optical film of the present invention. [Description of main component symbols] 100, 200, 300, 400 Optical film 101 Base film 102 Resin layer (optical functional layer) 103 Translucent fine particles 201 Unwinding device 202 Coating device 203 Support roller 204 Dryer 205 Mirror metal Roller or embossing metal roll 206 nip roll 207 peeling roll 208 ultraviolet irradiation device 209 take-up device 30 323807