TW200928449A - Optical film, polarization plate and image display device - Google Patents

Abstract

Provided is an optical film having an antidazzle layer on a transparent film base material. The optical film has a surface haze of 15% or less and a rate of a scatter reflectance to an integrated reflectance in the range of 30-70%.

Description

200928449 九、發明說明 【發明所屬之技術領域】 本發明係關於光學薄膜、偏光板及圖像顯示裝置，更 詳細而言係關於具有含有所定的内部散射性及表面散射性 的防眩層之光學薄膜、使用光學薄膜作爲表面保護薄膜之 偏光板、使用偏光板之圖像顯示裝置。 U 【先前技術】 各種顯示器之一有液晶顯示器，此等的機器，當作爲 屋外使用頻率高的液晶顯示器，幾乎使用具有經施以防眩 處理的防反射性之光學薄膜。 防眩處理，係藉由使經反射於表面的影像的輪廓模糊 ，降低反射影像的辨視性而降低顯示裝置使用時之反射影 像的映入。 一般而言，有以噴砂處理、壓花輥、化學蝕刻等之適 G 當的方式進行粗面化處理而於表面賦予微細凹凸結構者、 以藉由模具的轉寫方式等而於表面賦予微細凹凸結構者、 使樹脂層中分散含有微粒子而於表面賦予微細凹凸結構者 ，以表面的凹凸結構進行如使可見光區域的反射光散射之 設計。 此等的防眩處理之中，亦以使樹脂層中分散含有粒子 之方法，由可簡單地賦予微細凹凸結構之觀點而言較佳。 專利文獻1中，已報告藉由於透明薄膜基材上，塗佈 分散有放射性硬化型樹脂、平均粒徑ΙΟμιη以下的粒子及 -5- 200928449 觸變劑之分散液’使其乾燥硬化，形成於表面具有微細凹 凸結構之防眩層的例子。 惟，隨著顯示裝置的高精細化，表面凹凸所造成的微 小的亮度不均勻使畫像表面產生眩光。 ' 專利文獻2中，揭示爲了抑制此眩光，於透明基材薄 _ 膜的至少一側的面上，層合由含有折射率不同的透光性擴 散劑之透光性樹脂所成的防眩層，使此防眩層的表面凹凸 q 中表面霧度値hs爲7%<hs<3 0%，使該防眩層的内部擴散 所造成的内部霧度値hi爲l%<hi<l 5%爲特徵之防眩薄膜 〇 此外，專利文獻3中，揭示防眩層的表面凹凸少、防 眩性與眩光改良期望於内部散射（亦稱爲内部擴散），防 眩層的内部散射所引起之霧度値爲〇〜40%，而且，表面散 射所引起的霧度値爲0.3〜20%爲特徵之防眩性薄膜。 惟，此等的方法，會有雖然改善了眩光但畫面的對比 Q 劣化之問題。 因此，專利文獻4中，揭示於透明支持體上具有至少 具有内部散射性之層，依據JIS-K7 105之影像鮮明性（與 對比同義）以光學梳寬度〇.5mm測量時爲30.0%〜99.9%， 表面散射所引起的霧度値低於3%，内部散射所引起的霧 度値爲15〜4 0%爲特徵之光學薄膜。 惟，此方法，雖然可應付先前技術的對比水準，但對 於最近所要求之行動電話等的高解析度螢幕而言完全不足 -6- 200928449 例如5cm寬且640畫素的行動電話螢幕則爲0.078 mm/1畫素，是即使以最小光學梳寬度爲0.125mm的影像 清晰度（image clarity)測量亦無法評估的水準。 實際上，即使先前技術的畫像像鮮明性評估之透過影 ' 像清晰度的値高，但在視覺上，不可否認高解析度的畫像 ' 鮮明度的劣化。 此外，專利文獻4所記載之方法，爲了抑制防眩層的 q 表面散射，有必要於最上層再設置低折射率層，在品質、 生產性的觀點上無法謂爲充分的技術。 〔專利文獻1〕特開平10-219136號公報 〔專利文獻2〕特許第3 5077 1 9號公報 〔專利文獻3〕特開2007-45 1 42號公報 〔專利文獻4〕特開2007-6563 5號公報 【發明內容】 〇 本發明的目的在於提供畫面的眩光受到抑制、具有良 好的對比、生產性優異的光學薄膜、偏光板及圖像顯示裝 置。 爲了達成上述目的之本發明的形態之一，係於透明薄 膜基材上具有防眩層之光學薄膜，其特徵係表面霧度値爲 1 5%以下，積分反射率中散射反射率所佔的比例爲 30〜70%爲特徵之光學薄膜。 〔實施發明之最佳形態〕 200928449 本發明的上述課題係藉由以下的構成而達成。 ι_一種光學薄膜’其係於透明薄膜基材上具有防眩層 之光學薄膜’其特徵係表面霧度値爲15%以下，積分反射 率中散射反射率所佔有的比例爲30〜70%。 2.如前述1所記載之光學薄膜，前述光學薄膜中，該 防眩層含有平均粒徑1·5~6μιη之含氟的丙烯酸樹脂粒子。 3·如前述2所記載之光學薄膜，前述光學薄膜中，該 U 防眩層的膜厚大於前述含氟的丙烯酸樹脂粒子的平均粒徑 〇 4·如前述1~3中任一項所記載之光學薄膜，前述光學 薄膜係於前述防眩層中含有平均粒徑0.01〜1·0μιη的粒子 〇 5. —種偏光板，其特徵係具有前述1〜4中任—項所記 載之光學薄膜。 6. —種圖像顯示裝置，其特徵係使用前述中任一 Q 項所記載之光學薄膜。 依據本發明，可提供畫面的眩光受到抑制、具有良好 的對比、生產性優異的防眩性薄膜、防眩性防反射薄膜、 偏光板及圖像顯示裝置。 本發明的光學薄膜，其特徵係表面霧度値（薄膜的表 面散射所引起的霧度値）爲1 5%以下，積分反射率中散射 反射率所佔的比例（以下，簡稱爲散射反射比率）爲 3 0 〜7 0 % 〇 一般而言，藉由粒子賦予防眩性時，因爲粒子的添加 -8- 200928449 而使表面霧度增加，對比降低。因此，爲了得到高的對比 ’不能使表面霧度太大，另一方面，積分反射率係以正反 射率與散射反射率（亦稱爲擴散反射率）之和表示（積分 反射率=正反射率+散射反射率），本發明者發現即使表面 霧度小，散射反射率的比例之散射反射比率（散射反射比 率=散射反射率/積分反射率）在某一定的範圍，亦即，爲 3 0〜70%時，可改善對比，同時得到充足的防眩性。 目前爲止，表面霧度値變小，則隨著其量，散射反射 率於積分反射率中所佔的比例亦變小（表面霧度値爲1 5 % 則散射反射比率降低至2 5 %左右），無法在使表面霧度値 變小的狀況下，同時使散射反射比率爲30〜70%。本發明 中，作爲構成防眩層的樹脂，使用折射率爲1.47以上的 樹脂，其中，藉由使其含有平均粒徑1.5〜6 μηι之含氟的丙 烯酸樹脂粒子，可使表面霧度値保持在小的數値的狀況下 ，同時使散射反射比率維持在30〜70%。認爲此乃因爲含 Q 氟的丙烯酸樹脂粒子的折射率與構成防眩層的樹脂之折射 率比較下相當低，而光的散射（擴散）容易發生。 散射反射比率低於3 0 %，則無法得到充分的防眩性， 大於70%則對比降低。 作爲光擴散劑，使用無機微粒子時，會有光透過率降 低、成形時易導致機械破損、光無法均勻地擴散等之各種 問題。 薄膜有藉由透過光所測量的全霧度値，全霧度値係分 成表面霧度値及内部散射所引起的霧度値之内部霧度値。 -9 - 200928449 本發明的光學薄膜相關的表面霧度値，可依以下的順 序測量。 (1 )依據 JIS-K7136，藉由霧度値測量儀（τ_ 2600DA、東京電色製），測量本發明的光學薄膜的全霧 ' 度値（Η )。 ' (2)本發明的光學薄膜的防眩層的表面上，貼合單 面上經塗佈丙烯酸系黏著劑之附有黏著劑的聚對苯二甲酸 φ 乙二醇酯薄膜，對於經貼合者的整體，測量全霧度値Η0 。另外，僅測量經塗佈丙烯酸系黏著劑之附有黏著劑的聚 對苯二甲酸乙二醇酯薄膜之全霧度値Ht，從先測量的Η0 減掉Ht之値作爲内部霧度値Hi。（ Hi = H0-Ht ) (3 )以上述（1 )所測量的全霧度値（Η )減掉以上 述（2)所算出的内部霧度値（Hi)之値，作爲薄膜的表 面霧度値（Hs)而計算出。（Hs = H- Hi) 本發明的光學薄膜該相關的散射反射比率，係可藉由 Q 使用Konica Minolta Sensing (股）製、分光測色計CM-25 00d，以測量徑 φ 8mm、觀察視野2°的條件，測量SCI (亦稱爲積分反射率、含正反射的反射率）及SCE (亦稱 爲散射反射率、擴散反射率或不含正反射的反射率）而得 到。 本發明的光學薄膜該相關的防眩層的表面凹凸形狀， 以中心線平均粗度（算術平均粗度）Ra爲0.03~0·35μιη 較佳，更佳爲〇·〇8~0·3μιη，特別佳爲〇.〇8~0.22μιη。 此外，1 〇點平均粗度Rz係中心線平均粗度Ra的10 -10- 200928449 倍以下’平均山谷距離Sm爲5 0〜150 μιη較佳，更佳爲 50〜120 μιη，從凹凸最深部起的凸部高度的標準偏差爲 0·5μιη以下，以中心線爲基準的平均山谷距離sm的標準 偏差爲20μιη以下，傾斜角〇〜5度之面爲10%以上較佳。 藉由如此地設計，可得到充足的防眩性與對比，特別 是藉由使中心線平均粗度Ra爲0 · 〇 8 μιη以上，可得到充足 的防眩性，爲0.3 μ m以下，此値愈小，愈無眩光且優良。 0 Ra可藉由光干擾式的表面粗度測量器進行測量，例 如可使用光學干擾式表面粗度計RST/PLUS ( WYKO公司 製）進行測量。 本發明所謂的防眩性，係指藉由使反射於薄膜基材表 面的影像的輪廓模糊而降低反射像的辨視性，液晶顯示器 、有機EL顯示器、電漿顯示器之圖像顯示裝置等之使用 時，不會注意到反射影像的倒影者。 Q <防眩層> 本發明的防眩層，基本上具有於以透明樹脂、例如活 性能量線硬化樹脂爲主成分之黏合劑層中，含有平均粒徑 1.5~6μιη之含氟的丙烯酸樹脂粒子的結構。 <平均粒徑1.5~6μιη之含氟的丙烯酸樹脂粒子> 作爲本發明之含氟的丙烯酸樹脂粒子’例如由含有氟 的丙烯酸酯或甲基丙烯酸酯的聚合物所形成的粒子。 作爲含有氟的丙烯酸酯或甲基丙烯酸酯之具體例子’ -11 - 200928449 可列舉 1H，1H，3H-四氟丙基（甲基）丙烯酸酯、 1H,1H,5H -八氟戊基（甲基）丙烯酸酯、1H,1H，7H -十二氟 庚基（甲基）丙烯酸酯、1H,1H,9H-十六氟壬基（甲基） 丙烯酸酯、2，2,2-三氟乙基（甲基）丙烯酸酯、2,2,3,3，3-五氟丙基（甲基）丙烯酸酯、2-(全氟丁基）乙基（甲基 ' )丙烯酸酯、2-(全氟己基）乙基（甲基）丙烯酸酯、2- (全氟辛基）乙基（甲基）丙烯酸酯、2-全氟癸基乙基（ @ 甲基）丙烯酸酯、3-全氟丁基-2-羥基丙基（甲基）丙烯 酸酯、3-全氟己基-2-羥基丙基（甲基）丙烯酸酯、3-全氟 辛基-2-羥基丙基（甲基）丙烯酸酯、2-(全氟-3-甲基丁 基）乙基（甲基）丙烯酸酯、2-(全氟_5 -甲基己基）乙 基（甲基）丙烯酸酯、2-(全氟-7-甲基辛基）乙基（甲 基）丙烯酸酯、3-(全氟-3-甲基丁基）-2-羥基丙基（甲 基）丙烯酸酯、3-(全氟-5-甲基己基）-2-羥基丙基（甲 基）丙烯酸酯、3-(全氟-7-甲基辛基）-2-羥基丙基（甲 〇 基）丙烯酸酯、1H-1-(三氟甲基）三氟乙基（甲基）丙 烯酸酯、1H，1H，3H-六氟丁基（甲基）丙烯酸酯、三氟乙 基甲基丙烯酸酯、四氟丙基甲基丙烯酸酯、全氟辛基乙基 丙烯酸酯、2-(全氟丁基）乙基-α-氟丙烯酸酯。 此外，含氟的丙烯酸樹脂粒子中，又以由2-(全氟 丁基）乙基-α-氟丙烯酸酯所成的粒子、含有氟的聚甲基 甲基丙烯酸酯粒子、將含有氟的甲基丙烯酸在交聯劑的存 在下與乙烯基單體共聚之粒子較佳，更佳爲含有氟的聚甲 基甲基丙烯酸酯粒子。 -12- 200928449 亦可使可與含有氟的（甲基）丙烯酸酯共聚的乙嫌基 單體進行共聚。 此等，只要是具有乙烯基者即可，具體而言可列舉甲 基丙烯酸甲酯、甲基丙烯酸丁酯等之甲基丙烯酸烷酯’丙 烯酸甲酯、丙烯酸乙酯等之丙烯酸烷酯，及苯乙烯、α-甲 基苯乙烯等之苯乙烯類等，此等可單獨使用或混合使用。 作爲聚合反應時所使用的交聯劑，並沒有特別的限制 @ ，但使用具有2個以上的不飽和基者較佳，可列舉例如乙 二醇二甲基丙烯酸酯、聚乙二醇二甲基丙烯酸酯等之2官 能性二甲基丙烯酸酯，或三羥甲基丙烷三甲基丙烯酸酯、 二乙烯基苯等。 再者，用於製造含有氟的聚甲基甲基丙烯酸酯粒子之 聚合反應，可爲無規共聚及嵌段共聚的任一種，可使用一 般的方法進行，具體而言，亦可列舉例如特開 2000-1 6965 8號公報所記載之方法等。 〇 市售品，可列舉根上工業（股）製：MF-0043等，再 者，此等含氟的丙烯酸樹脂粒子，可單獨使用，亦可組合 2種以上使用。 此外，此等含氟的丙烯酸樹脂粒子的狀態，以粉體或 乳膠等狀態添加亦可。 此外，亦可使用特開 2004-83 707號公報的段落 0 02 8〜00 5 5所記載之含有氟的交聯粒子。 本發明之含氟的丙烯酸樹脂粒子的折射率，爲 1.38〜1.46較佳 -13- 200928449 本發明之含氟的丙烯酸樹脂粒子的含量，係相對於構 成防眩層之透明樹脂1〇〇質量份，爲0.01~500質量份較 佳，更佳爲〇·1 ~100質量份，特別佳爲1〜60質量份。 本發明之含氟的丙烯酸樹脂粒子的平均粒徑，爲 1.5〜6μιη，爲2.0〜4 · 0μπι較佳，含氟的丙烯酸樹脂粒子的 平均粒徑低於1 . 5 μιη，則無法得到充分的防眩性，大於 6 μ m則對比降低。 _ 再者，平均粒徑係攝影粒子的掃描型電子顯微鏡照片 (粒子 1000個以上），使用畫像處理裝置LUZEX-III ( NIRECO公司製），測量1〇〇個之此照片上所拍攝的粒子 的直徑，算出其平均値作爲平均粒徑。 <平均粒徑0.01〜Ι.Ομιη的粒子> 本發明之較佳含有的平均粒徑爲〇.〇1〜ίμιη的粒子’ 可列舉丙烯酸系粒子、以二氧化砂作爲主成分之無機粒子 作爲二氧化矽粒子，可列舉日本AEROSIL製之 AEROSIL200、200V、3 00、Degussa 製之 AEROSIL 0X5 0 、TT600等、日本觸媒公司製之KEP-10，KEP-50，KEP- 1 〇 〇等之商品名。 此外，亦可使用膠體二氧化矽，膠體二氧化矽之意’ 使二氧化矽分散於水或有機溶劑中成膠體狀者’並沒有特 別的限制，但爲球狀、針狀或節點狀。 如此的膠體二氧化矽已有市售品’可列舉例如日產化 -14- 200928449 學工業公司的 SNOWTEX系列、觸媒化成工業公司的 Cataloid-S系列、BAYER公司的Levasil系列等。 此外，亦以氧化鋁溶膠或氫氧化鋁經陽離子改性的膠 體二氧化矽或將二氧化矽的一次粒子以2價以上的金屬離 ' 子鍵結粒子間而連結成節點狀之節點狀膠體二氧化矽較適 用。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical film, a polarizing plate, and an image display device, and more particularly to an optical film having an antiglare layer having a predetermined internal scattering property and surface scattering property. A film, a polarizing plate using an optical film as a surface protective film, and an image display device using a polarizing plate. U [Prior Art] One of various displays has a liquid crystal display, and such a machine uses an optical film having an antireflection antireflection effect when it is used as a liquid crystal display having a high frequency. The anti-glare treatment reduces the visibility of the reflected image by reducing the outline of the image reflected on the surface, thereby reducing the reflection of the reflected image when the display device is used. In general, the surface is roughened by a sandblasting treatment, an embossing roll, a chemical etching, or the like, and a fine uneven structure is applied to the surface, and a fine surface is imparted by a transfer method of a mold or the like. In the concave-convex structure, when fine particles are dispersed in the resin layer and the fine uneven structure is provided on the surface, the surface of the uneven structure is designed to scatter the reflected light in the visible light region. Among these anti-glare treatments, a method of dispersing particles in the resin layer is preferable from the viewpoint of easily providing a fine uneven structure. In Patent Document 1, it has been reported that a transparent liquid film substrate is coated with a radioactive hardening resin, particles having an average particle diameter of ΙΟμη or less, and a dispersion of -5 to 200928449 thixotropic agent, which are dried and cured. An example of an anti-glare layer having a fine uneven structure on its surface. However, with the high definition of the display device, the slight unevenness of the brightness caused by the surface unevenness causes glare on the surface of the image. In Patent Document 2, it is disclosed that, in order to suppress the glare, an anti-glare formed by a light-transmitting resin containing a light-transmitting diffusing agent having a different refractive index is laminated on at least one surface of a transparent substrate thin film. The layer has a surface haze 値hs of 7% <hs<30% in the surface unevenness q of the anti-glare layer, so that the internal haze 値hi caused by the internal diffusion of the anti-glare layer is 1% <hi< In the case of the anti-glare film of the anti-glare layer, the surface of the anti-glare layer is less, the anti-glare property and the glare improvement are desired to be internal scattering (also referred to as internal diffusion), and the interior of the anti-glare layer is disclosed. The haze 値 caused by scattering is 〇40%, and the haze 値 caused by surface scattering is 0.3 to 20%. However, in such a method, there is a problem that although the glare is improved but the contrast of the picture is deteriorated. Therefore, in Patent Document 4, it is disclosed that the transparent support has a layer having at least internal scattering property, and the image sharpness according to JIS-K7 105 (synonymous with comparison) is 30.0% to 99.9 when measured with an optical comb width of 55 mm. %, the haze caused by surface scattering is less than 3%, and the haze caused by internal scattering is an optical film characterized by 15 to 40%. However, this method, although it can cope with the contrast level of the prior art, is completely insufficient for the high-resolution screen of the recently requested mobile phone, etc. - 200928449 For example, the 5cm wide and 640 pixel mobile phone screen is 0.078. The mm/1 pixel is a level that cannot be evaluated even with an image clarity measurement with a minimum optical comb width of 0.125 mm. In fact, even if the portrait of the prior art is like the sharpness of the image, the image clarity is high, but visually, it is undeniable that the high-resolution image has a sharpness of sharpness. Further, in the method described in Patent Document 4, in order to suppress the q-surface scattering of the anti-glare layer, it is necessary to further provide a low refractive index layer on the uppermost layer, which is not a sufficient technique from the viewpoint of quality and productivity. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. 2007-45. SUMMARY OF THE INVENTION An object of the present invention is to provide an optical film, a polarizing plate, and an image display device which are excellent in glare of a screen, have excellent contrast, and are excellent in productivity. An optical film having an antiglare layer on a transparent film substrate, which is characterized in that the surface haze 1 is less than 1 5%, and the scattering reflectance is in the integral reflectance, in order to achieve the above object. An optical film characterized by a ratio of 30 to 70%. [Best Mode for Carrying Out the Invention] 200928449 The above problems of the present invention are achieved by the following constitution. Ι_ An optical film which is an optical film having an anti-glare layer on a transparent film substrate, characterized in that the surface haze is 15% or less, and the ratio of the scattered reflectance in the integrated reflectance is 30 to 70%. . 2. The optical film according to the above 1, wherein the antiglare layer contains fluorine-containing acrylic resin particles having an average particle diameter of from 1 to 5 to 6 μm. The optical film according to the above-mentioned 2, wherein the film thickness of the U anti-glare layer is larger than an average particle diameter of the fluorine-containing acrylic resin particles 〇4, as described in any one of the above 1 to 3. In the optical film, the optical film is characterized in that the optical film has an average particle diameter of 0.01 to 1.0 μm, and a polarizing plate is characterized in that it has the optical film described in any one of the above items 1 to 4. . An image display device characterized by using the optical film described in any one of the above items. According to the present invention, it is possible to provide an anti-glare film, an anti-glare antireflection film, a polarizing plate, and an image display device which are suppressed in glare of a screen, have excellent contrast, and are excellent in productivity. The optical film of the present invention is characterized in that the surface haze 値 (haze 値 due to surface scattering of the film) is 15% or less, and the ratio of the scattered reflectance in the integrated reflectance (hereinafter, simply referred to as the scattering reflectance ratio) ) is 3 0 to 70% 〇 In general, when the anti-glare property is imparted by the particles, the surface haze is increased by the addition of the particles -8 to 200928449, and the contrast is lowered. Therefore, in order to obtain a high contrast, the surface haze cannot be made too large. On the other hand, the integral reflectance is expressed as the sum of the regular reflectance and the scattered reflectance (also called the diffuse reflectance) (integral reflectance = regular reflection) Rate + scattering reflectance), the inventors have found that even if the surface haze is small, the ratio of the scattering reflectance of the scattering reflectance (scattering reflectance ratio = scattering reflectance / integral reflectance) is within a certain range, that is, 3 When 0 to 70%, the contrast can be improved while obtaining sufficient anti-glare properties. So far, the surface haze 値 has become smaller, and as the amount, the ratio of the scattering reflectance to the integral reflectance also becomes smaller (the surface haze 値 is 15%, the scattering reflection ratio is reduced to about 25 %). In the case where the surface haze is reduced, the scattering reflection ratio cannot be made 30 to 70% at the same time. In the present invention, a resin having a refractive index of 1.47 or more is used as the resin constituting the antiglare layer, and the surface haze is maintained by containing fluorine-containing acrylic resin particles having an average particle diameter of 1.5 to 6 μm. In the case of a small number of turns, the scattering reflection ratio is maintained at 30 to 70% at the same time. This is considered to be because the refractive index of the Q-fluorine-containing acrylic resin particles is relatively low as compared with the refractive index of the resin constituting the antiglare layer, and scattering (diffusion) of light is likely to occur. When the scattering reflection ratio is less than 30%, sufficient anti-glare property cannot be obtained, and when it is more than 70%, the contrast is lowered. When the inorganic fine particles are used as the light diffusing agent, there are various problems such as a decrease in light transmittance, a mechanical breakage during molding, and uneven diffusion of light. The film has a full haze 测量 measured by transmitted light, and the full haze is divided into a haze of the surface and an internal haze of haze caused by internal scattering. -9 - 200928449 The surface haze 相关 associated with the optical film of the present invention can be measured in the following order. (1) According to JIS-K7136, the full fog 'degree of 値 (Η) of the optical film of the present invention was measured by a haze meter (τ 2600DA, manufactured by Tokyo Electric Co., Ltd.). (2) On the surface of the antiglare layer of the optical film of the present invention, a polybutylene terephthalate film with an adhesive coated with an acrylic adhesive on one surface is bonded to the surface. For the whole of the joint, measure the full haze 値Η0. In addition, only the full haze 値Ht of the adhesive-attached polyethylene terephthalate film coated with the acrylic adhesive was measured, and the Ht was subtracted from the first measured Η0 as the internal haze 値Hi . (Hi = H0-Ht) (3) The internal haze Hi(Hi) calculated by the above (2) is subtracted from the full haze Η(Η) measured in the above (1) as the surface mist of the film. Calculated by degree (Hs). (Hs = H- Hi) The relative scattering reflection ratio of the optical film of the present invention can be measured by Q using Konica Minolta Sensing Co., Ltd., spectrophotometer CM-25 00d to measure the diameter φ 8 mm, and observe the field of view. The condition of 2° is measured by measuring SCI (also known as integral reflectance, reflectance with regular reflection) and SCE (also known as diffuse reflectance, diffuse reflectance, or reflectance without specular reflection). The surface unevenness of the antiglare layer of the optical film of the present invention is preferably a center line average roughness (arithmetic mean roughness) Ra of 0.03 to 0.35 μm, more preferably 〇·〇8 to 0·3 μιη. Especially good is 〇.〇8~0.22μιη. In addition, the average roughness Rz of the 1 〇 point is 10 -10- 200928449 times the average roughness Ra of the center line. The average valley distance Sm is preferably 50 to 150 μm, more preferably 50 to 120 μm, from the deepest part of the ridge. The standard deviation of the height of the convex portion is not more than 0.5 μm, and the standard deviation of the average valley distance sm based on the center line is 20 μm or less, and the surface having the inclination angle 〇 5 degrees or less is preferably 10% or more. By designing in this way, sufficient anti-glare property and contrast can be obtained, and in particular, by making the center line average roughness Ra 0 〇 8 μmη or more, sufficient anti-glare property can be obtained, which is 0.3 μm or less. The smaller the sputum, the less glare and the better. 0 Ra can be measured by a light-interfering surface roughness measuring device, for example, using an optical interference surface roughness meter RST/PLUS (WYKO). The anti-glare property of the present invention means that the visibility of a reflected image is blurred by blurring the outline of an image reflected on the surface of the film substrate, and an image display device such as a liquid crystal display, an organic EL display or a plasma display device. When used, the reflection of the reflected image will not be noticed. Q <anti-glare layer> The anti-glare layer of the present invention basically has a fluorine-containing acrylic acid having an average particle diameter of 1.5 to 6 μm in a binder layer containing a transparent resin such as an active energy ray-curable resin as a main component. The structure of the resin particles. <Fluorine-containing acrylic resin particles having an average particle diameter of 1.5 to 6 μm> Particles formed of a polymer containing fluorine-containing acrylate or methacrylate as the fluorine-containing acrylic resin particles of the present invention. Specific examples of fluorine-containing acrylate or methacrylate ' -11 - 200928449 1H, 1H, 3H-tetrafluoropropyl (meth) acrylate, 1H, 1H, 5H - octafluoropentyl (A) Acrylate, 1H, 1H, 7H-dodecylheptyl (meth) acrylate, 1H, 1H, 9H-hexadecafluorodecyl (meth) acrylate, 2,2,2-trifluoroethyl Base (meth) acrylate, 2,2,3,3,3-pentafluoropropyl (meth) acrylate, 2-(perfluorobutyl)ethyl (methyl') acrylate, 2-( Perfluorohexyl)ethyl (meth) acrylate, 2-(perfluorooctyl)ethyl (meth) acrylate, 2-perfluorodecylethyl (@ meth) acrylate, 3-perfluoro Butyl-2-hydroxypropyl (meth) acrylate, 3-perfluorohexyl-2-hydroxypropyl (meth) acrylate, 3-perfluorooctyl-2-hydroxypropyl (meth) acrylate Ester, 2-(perfluoro-3-methylbutyl)ethyl (meth) acrylate, 2-(perfluoro-5-methylhexyl)ethyl (meth) acrylate, 2-(perfluoro -7-Methyloctyl)ethyl (meth) acrylate, 3-(perfluoro-3-methylbutyl)-2-hydroxyl (meth) acrylate, 3-(perfluoro-5-methylhexyl)-2-hydroxypropyl (meth) acrylate, 3-(perfluoro-7-methyloctyl)-2-hydroxyl Propyl (meth) acrylate, 1H-1-(trifluoromethyl)trifluoroethyl (meth) acrylate, 1H, 1H, 3H-hexafluorobutyl (meth) acrylate, trifluoro Ethyl methacrylate, tetrafluoropropyl methacrylate, perfluorooctylethyl acrylate, 2-(perfluorobutyl)ethyl-α-fluoroacrylate. Further, among the fluorine-containing acrylic resin particles, particles made of 2-(perfluorobutyl)ethyl-α-fluoroacrylate, fluorine-containing polymethylmethacrylate particles, and fluorine-containing particles are contained. The methacrylic acid is preferably copolymerized with a vinyl monomer in the presence of a crosslinking agent, more preferably a fluorine-containing polymethyl methacrylate particle. -12- 200928449 It is also possible to copolymerize an ethylenic monomer which can be copolymerized with a fluorine-containing (meth) acrylate. In addition, as long as it has a vinyl group, specifically, an alkyl acrylate such as methyl methacrylate or butyl methacrylate such as methyl acrylate or ethyl acrylate may be mentioned. Styrene such as styrene or α-methylstyrene, etc., which may be used singly or in combination. The crosslinking agent to be used in the polymerization reaction is not particularly limited to @, but it is preferred to use two or more unsaturated groups, and examples thereof include ethylene glycol dimethacrylate and polyethylene glycol. A bifunctional dimethacrylate such as a acrylate or trimethylolpropane trimethacrylate or divinylbenzene. Further, the polymerization reaction for producing the fluorine-containing polymethyl methacrylate particles may be any of random copolymerization and block copolymerization, and may be carried out by a general method. Specifically, for example, The method described in the publication No. 2000-1 6965 8 and the like. 〇 The commercially available product may be MF-0043 or the like, and the fluorine-containing acrylic resin particles may be used singly or in combination of two or more. Further, the state of the fluorine-containing acrylic resin particles may be added in the form of a powder or a latex. Further, the fluorine-containing crosslinked particles described in paragraphs 0 02 8 to 00 5 5 of JP-A-2004-83 707 can also be used. The refractive index of the fluorine-containing acrylic resin particles of the present invention is 1.38 to 1.46. Preferably-13 to 200928449 The content of the fluorine-containing acrylic resin particles of the present invention is 1 part by mass relative to the transparent resin constituting the antiglare layer. It is preferably from 0.01 to 500 parts by mass, more preferably from 1 to 100 parts by mass, particularly preferably from 1 to 60 parts by mass. The fluorine-containing acrylic resin particles of the present invention have an average particle diameter of 1.5 to 6 μm, preferably 2.0 to 4 · 0 μm, and the average particle diameter of the fluorine-containing acrylic resin particles is less than 1.5 μm, which is insufficient. Anti-glare, greater than 6 μm, the contrast is reduced. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The diameter was calculated and the average enthalpy was calculated as the average particle diameter. <Particles having an average particle diameter of 0.01 to Ι.Ομιη> The particles having an average particle diameter of 〇.〇1 to ίμιη which are preferably contained in the present invention are exemplified by acrylic particles and inorganic particles containing silica sand as a main component. Examples of the cerium oxide particles include AEROSIL 200 manufactured by Japan AEROSIL, 200V, 300, AEROSIL 0X5 0 manufactured by Degussa, TT600, etc., KEP-10, KEP-50, KEP-1 manufactured by Nippon Shokubai Co., Ltd., and the like. Product name. Further, colloidal cerium oxide may be used, and the meaning of colloidal cerium dioxide "dispersing cerium oxide in water or an organic solvent to form a gel" is not particularly limited, but is spherical, needle-like or node-like. Such a colloidal cerium oxide is commercially available, and examples thereof include the SNOWTEX series of Nissan Chemical Co., Ltd., the Cataloid-S series of Catalyst Chemical Industries Co., Ltd., and the Levasil series of BAYER Corporation. Further, a colloidal cerium oxide which is cationically modified with an alumina sol or aluminum hydroxide or a primary particle of cerium oxide is bonded to a node-like colloidal colloid by a metal having a valence of two or more. Ceria is more suitable.

節點狀膠體二氧化矽，可列舉日產化學工業公司的 〇 SNOWTEX-AK 系列、SNOWTEX-PS 系列、SNOWTEX-UP 系列等，具體的而言可列舉IPS-ST-L (異丙醇二氧化矽 溶膠、粒子徑40〜50nm、二氧化矽濃度30°/。）、MEK-ST-MS (甲基乙基酮二氧化矽溶膠、粒子徑1 7〜23nm、二氧 化矽濃度3 5% )等、MEK-ST (甲基乙基酮二氧化矽溶膠 、粒子徑 l〇~15nm、二氧化矽濃度30% ) 、MEK-ST-L ( 甲基乙基酮二氧化矽溶膠、粒子徑4〇~50nm、二氧化矽濃 度30%) 、MEK-ST-UP (甲基乙基酮二氧化矽溶膠、粒子 Q 徑9~15nm (鏈狀結構）、二氧化矽濃度20% )等。 此外，作爲丙烯基粒子，可列舉含氟的丙烯酸樹脂粒 子，可列舉例如日本paint製：S-4000、FS-701、作爲 丙烯基-苯乙烯粒子，可列舉例如日本PAINT製：s_1200 、MG-251 等。 此等平均粒徑爲〇.〇1〜Ιμηι的粒子之中’亦以含氟的 丙烯酸樹脂粒子較佳。 平均粒徑爲〇·〇ΐ~ΐμπι的粒子’由形成防眩層之塗佈 液的安定性及分散液的分散性而言，其含量係相對於構成 -15- 200928449 防眩層之透明樹脂100質量份，以0.01〜500質量份較佳 ，更佳爲0.1〜1〇〇質量份。 此外，與平均粒徑爲〇·〇1~1μπι的粒子之含有比率’ 係相對於平均粒徑爲1.5 ~6μιη的粒子，可在0〜5 00質量％ 的範圍內適當選擇。 上述粒子係以如粉體或乳膠等之狀態添加亦可，此外 ，透光性粒子的密度，較佳爲l〇~l〇〇〇mg/m2，更佳爲 1 0 0 ~ 7 0 0 m g/m2 ° <透明樹脂> 本發明之構成防眩層的透明樹脂的折射率，以1.47 以上較佳，更佳爲1 .47~1 .70。 爲了使折射率在此範圍，可適當選擇透明樹脂的種類 及量比例，折射率低於1 · 47，則很難得到硬度高的樹脂， 折射率大於1.70，則薄膜的不均勻易變明顯。 Ο 再者，透明樹脂的折射率，以阿貝折射計直接測量， 或測量分光反射光譜或分光橢圓對稱法而定量評估。 透明樹脂係具有飽和烴鏈或聚醚鏈作爲主鏈之黏合劑 聚合物較佳，具有飽和烴鏈作爲主鏈之黏合劑聚合物爲更 佳。 特別佳爲經由藉由如紫外線或電子線之活性線照射之 交聯反應等而硬化之樹脂。 作爲硬化性樹脂，較佳爲使用例如紫外線硬化型胺基 甲酸乙酯丙烯酸酯系樹脂、紫外線硬化型聚酯丙烯酸酯系 -16- 200928449 樹脂、紫外線硬化型環氧丙烯酸酯系樹脂、紫外線硬化型 多元醇丙烯酸酯系樹脂、或紫外線硬化型環氧樹脂等之紫 外線硬化型丙烯酸酯系樹脂。 紫外線硬化型胺基甲酸乙酯丙烯酸酯系樹脂，一般而 言可藉由使聚酯多元醇與異氰酸酯單體、或預聚物反應所 得到的生成物，再與2-羥基乙基丙烯酸酯、2-羥基乙基甲 基丙烯酸酯（以下，丙烯酸酯中包括甲基丙烯酸酯者，僅 以丙烯酸酯表示）、2-羥基丙基丙烯酸酯等之具有羥基的 丙烯酸酯系的單體反應而輕易得到。 可使用例如特開昭59-151 1 10號公報所記載者，較佳 爲可使用例如UNIDIC 1 7-806 (大日本油墨（股）製）1〇〇 份與coronate L(日本聚胺基甲酸乙酯（股）製）1份之 混合物等。 作爲紫外線硬化型聚酯丙烯酸酯系樹脂，一般而言可 列舉使聚酯多元醇與2-羥基乙基丙烯酸酯、2-羥基丙烯酸 酯系的單體反應可輕易地形成者，可使用特開昭59-1 5 1 1 1 2號公報所記載者。 紫外線硬化型環氧丙烯酸酯系樹脂的具體例子，可列 舉環氧丙烯酸酯作爲低聚物，於其中添加反應性稀釋劑、 光聚合起始劑，使其反應所生成者，可使用特開平1-1 05 73 8號公報所記載者。 紫外線硬化型多元醇丙烯酸酯系樹脂的具體例子，可 列舉三羥甲基丙烷三丙烯酸酯、二-三羥甲基丙烷四丙烯 酸酯、季戊四醇三丙烯酸酯、季戊四醇四丙烯酸酯、二季 -17- 200928449 戊四醇六丙烯酸酯、烷基改性二季戊四醇五丙烯酸酯等。 作爲此等硬化性樹脂的光聚合起始劑，具體而言可列 舉苯偶因及其衍生物、苯乙酮、二苯甲酮、羥基二苯甲酮 、米希勒酮、α -艾密羅醋（α-amyloxym ester)、噻_酮 等及此等的衍生物。亦可與光增感劑一起使用。 此外，環氧丙烯酸酯系的光聚合起始劑使用時，可使 用η-丁胺、三乙胺、三-η-丁基膦等之增感劑。 0 硬化性樹脂組成物所使用的光聚合起始劑或光增感劑 ，相對於該組成物100質量份而言，爲0.1-25質量份， 較佳爲1〜1 5質量份。 作爲丙烯酸酯系樹脂，可列舉甲基丙烯酸酯、乙基丙 烯酸酯、丁基丙烯酸酯、苄基丙烯酸酯、環己基丙烯酸酯 、乙二醇二丙烯酸酯、丙二醇二丙烯酸酯、二乙烯基苯、 1，4-環己烷二丙烯酸酯、1，4-環己基二甲基二丙烯酸酯、 三羥甲基丙烷三丙烯酸酯、季戊四醇四丙烯酸酯等。 ❹ 作爲此等之市售品，ADEKA OPTOMER KR · BY系列 :KR-400、KR-410、KR-5 50、KR-56 6、KR-567、BY-320B(旭電化（股）製）；廣榮哈頓A-101-KK、A-101-ws ' C-302、C-40 1-N、C-50 1、Μ-1 0 1、Μ-1 02、T-1 02、 D-102、NS-101、FT-102Q8、MAG-1-P20、AG-106、M-101-C (廣榮化學（股）製）；SEIKA-BEAM PHC2210 ( s )、PHC X-9 ( K-3 ) 、PHC2213、DP-10、DP-20、DP-30 、P 1 000、P1100、P 1 200、P 1 3 00、P 1400、P 1 5 00、P1 600 、SCR900 (大日精化工業（股）製）；KRM703 3、 -18- 200928449 KRM7039 、 KRM7130、 KRM7131 、UVECRYL29201 、 UVECRYL29202 ( DAICEL-CYTEC (股）製）；RC-5015 、RC-5016、RC-5020、RC-503 1、RC-5100、RC-5102、 RC-5120、RC-5122、RC-5152、RC-5171、RC-5180、RC-_ 5181(大日本油墨化學工業（股）製）；OLEXNo.340可 利亞（中國塗料（股）製）；SANRAD H-601、RC-75 0、 RC-700、RC-600、RC-500、RC-611、RC-612 (三洋化成 0 工業（股）製）；SP-1509、SP-1507(昭和高分子（股） 製）；RCC-15C ( GRACE JAPAN (股）製）、ARONIX M-6100、M-803 0、M-8060 (東亞合成（股）製）、NK HARD B-420、NK 酯 A-DOG、NK 酯 A-IBD-2E (新中村 化學工業（股）製）等可適當選擇而利用。 此外，其他可列舉三羥甲基丙烷三丙烯酸酯、二-三 羥甲基丙烷四丙烯酸酯、季戊四醇三丙烯酸酯、季戊四醇 四丙烯酸酯、二季戊四醇六丙烯酸酯、二噁烷二醇丙烯酸 〇 酯、乙氧基化丙烯酸酯、烷基改性二季戊四醇五丙烯酸酯 等。 此外，防眩層中，亦可含有氟-丙烯基共聚物樹脂。 氟·丙烯基共聚物樹脂之意，係指由氟單體與丙烯基單體 所成的共聚物樹脂，特別是由氟單體節段與丙烯基單體節 段所成的嵌段共聚物較佳。 <防眩所含有的其他物質> 防眩層中，亦可添加作爲其他有機粒子之聚矽氧烷系 -19- 200928449 樹脂粉末、聚苯乙烯系樹脂粉末、聚碳酸酯樹脂粉末、聚 烯烴系樹脂粉末、聚酯系樹脂粉末、聚醯胺系樹脂粉末、 聚醯亞胺系樹脂粉末、或聚氟化乙烯系樹脂粉末等紫外線 硬化性樹脂組成物。 此外’必要時可再含有特開2000-241807號公報所記 載之粒子。 此外，其他粒子的折射率爲1.4 5〜1 · 7 0較佳，更佳爲 ❾ 1.45~1.65。 再者，粒子的折射率，係可藉由於變化折射率不同的 2種類的溶劑的混合比而變化折射率之溶劑中使粒子等量 分散後測量濁度，濁度變得極小時的溶劑的折射率用阿貝 折射計測量而測量。 而且防眩層中’可含有作爲界面活性劑之下述聚矽氧 烷系界面活性劑、氟系化合物、聚氧醚化合物等較佳。 此等成分’係在持續提高面狀均勻性下，藉由使其具 φ 有高速塗佈適性而提高生產性。 作爲氟系化合物的較佳例子，可列舉含有氟脂肪族基 之共聚物，具體而言可使用特開2007-45 1 42號公報的段 落005 3〜0 0 82所記載之化合物或記載方法。 另外，亦可使用特開 2000- 1 1 9354號公報的段落 0008-003 1所記載之化合物或記載方法。 此等成分，相對於塗佈液中的固體成分，以0.01~5 質量％的範圍添加，因爲顯示出改善塗佈不均勻、乾燥不 均勻、點缺陷等之面狀故障之效果，故較佳。 -20- 200928449 此外，作爲氟系化合物’較佳亦可使用使矽氧烷（包 括聚矽氧烷）及/或有機矽氧烷（包括有機聚矽氧烷）接 枝於氟樹脂所得到的共聚物的聚合物。 具體而言，亦可列舉富士化成工業（股）製的ZX-022H、ZX-007C、ZX-049、ZX-047-D 等，此等化合物亦 可混合使用。 作爲聚氧化乙烯烷基醚之市售品，可列舉Emulgen 〇 1108、Emulgen 1118S-70(以上、花王（股）製）；作爲 聚氧化乙烯月桂基醚之市售品，可列舉Emulgen 103、 Emulgen 1 0 4 P ' Emulgen 105、Emulgen 106、Emulgen 10 8、 Emulgen 10 9 P、Emulgen 12 0、Emulgen 12 3 P、 Emulgen 147、Emulgen 150、Emulgen 130K (以上、花王 (股）製）：作爲聚氧化乙烯十六烷基醚之市售品，可列 舉 Emulgen 210P、Emulgen 220 (以上、花王（股）製） :作爲聚氧化乙烯硬脂醯基醚之市售品，可列舉Emulgen Q 22 0、Emulgen 306P (以上、花王（股）製）；作爲聚氧 化烯烷基醚之市售品，可列舉Emulgen LS-106、Emulgen LS-110、Emulgen LS-114、Emulgen MS-110 (以上、花王 (股）製）；作爲聚氧化乙烯高級醇醚之市售品，可列舉 Emulgen 705，Emulgen 707、Emulgen 709 等。 聚氧醚化合物可單獨使用或可倂用2種以上，此外， 亦可倂用乙炔二醇系化合物或非離子性界面活性劑、自由 基聚合性的非離子性界面活性劑等。 防眩層，係可含有具有作爲對於各種顯示元件的色補 -21 - 200928449 正用過濾器的色調調整機能之色調調整劑（染料或顏料等 )° 此外，亦可使其含有電磁波遮斷劑或赤外線吸收劑等 而具有各機能。 ' 防眩層中，亦可含有作爲硬化助劑之其他官能硫醇化 ' 合物，可列舉例如1，4-雙（3-毓基丁醯基氧基）丁烷、季 戊四醇肆（3-巯基丁酸酯）、1，3,5-參（3-巯基丁基氧基 0乙基）-1，3,5-三嗪-2,4,6(111,311，511)-三酮等。 此外，市售品可列舉昭和電工公司製之商品名karenz MT系列等；其他官能硫醇化合物，相對於活性能量線硬 化樹脂1〇〇質量份，以〇.〇1〜50質量份的範圍添加較佳， 更佳爲0.05〜30質量份。 藉由以前述範圍添加，以硬化助劑適當地作用，此外 在防眩層中亦安定地存在。 防眩層中，爲了調整硬度提高、防靜電、層的折射率 〇 ，除了本發明的有機粒子以外，亦可再含有以由鈦、锆、 鋁、銦、鋅、錫、銻之所選出的至少1種的金屬的氧化物 爲主成分，平均粒徑爲ΙΟμιη以下，例如2μπι以下，較佳 爲 0.2μιη以下，特別佳爲 Ο.ίμιη以下，更佳亦可爲 0·06μιη以下之無機粒子。 由鈦、锆、銦、鋅、錫、銻之中所選出的至少1種的 金屬的氧化物之中，以鈦、锆較佳。 防眩層所使用的無機粒子，表面經由矽烷偶合劑處理 或鈦偶合劑處理亦較佳，較佳係使用塡充劑表面具有可與 -22- 200928449 黏合劑種反應之官能基的表面處理劑。 表面處理劑亦可事先不必偶合劑處理，而混合於塗佈 組成物中使用。 使用此等的無機粒子時，其添加量係防眩層的全質量 的10〜90%較佳，更佳爲20~80%，特別佳爲30〜75%。 如此的無機粒子，因爲粒徑充分地小於光的波長，故 不會產生散射’黏合劑聚合物中分散有該塡充劑的分散體 0 ，光學上以均勻的物質進行作用。 <防眩層的製造方法> 防眩層較佳係使用凹版照相塗佈、浸漬塗佈、逆塗佈 、線棒塗佈、狹縫式塗佈（die coater)、噴墨塗法等習 知的方法等習知的方法，塗佈形成防眩層之塗佈組成物， 塗佈後加熱乾燥，UV硬化處理。 塗佈量係以濕膜厚而言爲0.1〜40μιη較適當，較佳爲 0 · 5 ~ 3 0 μπι ° 此外，以乾膜厚而言爲平均膜厚0.1〜30 μιη，較佳爲 1〜2 0 μπι，在此範圍内，硬性的不足、翹曲或脆性的惡化 、加工適性的降低受到防止。防眩層的膜厚係大於所添加 之含氟的丙烯酸樹脂粒子的平均粒徑較佳，樹脂粒子的平 均粒徑的1.3倍〜7倍爲更佳。 作爲上述UV硬化處理的光源，只要是可產生紫外線 之光源，並沒有制限皆可使用。例如可使用低壓水銀燈、 中壓水銀燈、高壓水銀燈、超高壓水銀燈、碳弧燈、金屬 -23- 200928449 鹵素燈、氙弧燈等。 照射條件因各燈而不同，但活性線的照射量通常爲 5 ~5 00m J / cm2 > 較佳爲 5~150mJ/cm2。 此外，照射活性線時，一邊於薄膜的搬運方向上賦予 張力一邊進行較佳，更佳爲亦一邊於寬度方向上賦予張力 ' 一邊進行，所賦予的張力爲30〜30ON/m較佳。 賦予張力之方法並沒有特別的限制，於背壓滾輪上可 φ 在搬運方向賦予張力，亦可在用拉幅器在寬度方向、或2 軸方向賦予張力，藉此更可得到平面性優異的薄膜。 形成防眩層之塗佈組成物中亦可含有溶劑，作爲塗佈 組成物所含有的有機溶劑，適當選自例如烴類（甲苯、二 甲苯）、醇類（甲醇、乙醇、異丙醇、丁醇、環己醇）、 酮類（丙酮、甲基乙基酮、甲基異丁酮）、酯類（乙酸甲 酯、乙酸乙酯、乳酸甲酯）、二醇醚類、其他的有機溶劑 中，或可混合此等利用。 〇 作爲有機溶劑，以丙二醇單烷基醚（烷基的碳數1〜4 )或丙二醇單烷基醚乙酸酯（烷基的碳數1〜4)等較佳， 此外’有機溶劑的含量，係塗佈組成物中以5〜8 0質量％ 較佳。 <其他層> <防靜電層> 本發明的透明薄膜基材上，設置防靜電層較佳，防靜 電層係設置在透明薄膜基材與防眩層之間較佳。 -24- 200928449 防靜電層係使銻酸鋅溶膠、磷酸錫溶膠、氧化錫溶膠 等，含於依據製造防眩層之方法藉由如紫外線或電子線之 活性線照射經由交聯反應等而硬化之樹脂中較佳。 < 背塗層（backcoatlayer)> 本發明的光學薄膜，亦可於與設置防眩層之側相反側 之面上設置背塗層。 φ 背塗層係爲了矯正因設置防眩層所發生的翹曲而設置 ，亦即，藉由使設置背塗層之面爲内側而使其具有捲曲傾 向的性質，可平衡翹曲的狀況。 再者，背塗層較佳係兼具防沾黏（anti-blocking )層 而被塗設，此時，背塗層塗佈組成物中，爲了使其具有防 沾黏機能，可添加無機化合物或有機化合物的粒子較佳。 亦可塗佈上述的各層前進行表面處理，作爲表面處理 方法，可列舉洗淨法、鹼處理法、火焰電漿處理（flame Q plasma treatment )、高頻放電電漿法、電子束法、離子 束法、濺鍍法、酸處理、電暈處理法、大氣壓輝光放電電 漿法等。 <透明薄膜基材> 作爲本發明的透明薄膜基材，以製造容易、與防眩層 的接著性優良、光學上等方性、光學上透明等爲較佳要件 而列舉。 此處所謂的透明之意，係指可見光的透過率6 0 %以上 -25- 200928449 ，較佳爲80%以上，特別佳爲90%以上，透明 膜厚較佳爲10〜200μιη，更佳爲20〜70μπι。 只要具有上述的性質即可，並沒有特別的 列舉例如纖維素二乙酸酯薄膜、纖維素三乙酸 ' 維素乙酸酯丙酸酯薄膜、纖維素乙酸酯丁酸酯 維素酯系薄膜、聚酯系薄膜、聚碳酸酯系薄膜 薄膜、聚碾（亦包含聚醚砸）系薄膜、聚對苯 醇酯、聚萘二甲酸乙二醇酯等之聚酯薄膜、聚 聚丙烯薄膜、賽猫玢（cellophane )、聚偏氯 聚乙烯醇薄膜、乙烯乙烯醇薄膜、間規聚苯乙 環烯烴聚合物薄膜（ART ON (JSR公司製）） 、ZEONOR (以上、日本ΖΕΟΝ公司製）、聚 、聚甲基戊烯薄膜、聚醚酮薄膜、聚醚酮醯亞 醯胺薄膜、氟樹脂薄膜、耐綸薄膜、聚甲基甲 薄膜、丙烯基薄膜或玻璃板等。 〇 其中又以纖維素酯系薄膜、聚碳酸酯系薄 包含聚醚碾）系薄膜、環烯烴聚合物薄膜較佳 本發明中，特別是以使用纖維素酯系？ Konicaminolta tak，製品名 KC8UX、KC4UX KC8UCR3 、 KC8UCR4 、 KC8UCR5 、 KC8UY KC4UE、KC12UR (以上，Konicaminolta opt )，由製造上、成本面、透明性、接著性等之 佳。 這些薄膜可爲以熔融流延製膜法所製造之 薄膜基材的 限制，但可 酯薄膜、纖 薄膜等之纖 、聚芳酯系 二甲酸乙二 乙烯薄膜、 乙烯薄膜、 烯系薄膜、 、ZEONEX 乙烯乙縮醛 胺薄膜、聚 基丙烯酸酯 膜、聚颯（ 〇 奪膜（例如 、KC5UX、 、KC4UY 、 (股）製） 觀點而言較 薄膜，亦可 -26- 200928449 爲以溶液流延製膜法所製造之薄膜。 作爲透明薄膜基材，使用纖維素酯系薄膜（以下亦稱 爲纖維素酯薄膜）較佳。 作爲纖維素酯，使用纖維素乙酸酯、纖維素乙酸酯丁 酸酯、纖維素乙酸酯丙酸酯較佳，其中又以使用纖維素乙 酸酯丁酸酯、纖維素乙酸酯苯二甲酸酯、纖維素乙酸酯丙 酸酯較佳。 0 特別是’使用將乙醯基的取代度定爲X，丙醯基或丁 醯基的取代度定爲Y時，X與Y位於下述的範圍之纖維 素酯薄膜較佳。 2.3SX + YS3.0 0.1SYS2.0 特別是 2.5SX + YS2.9 0.3SYS1.2 爲較佳。 以下，詳細地說明較佳的透明樹脂薄膜之纖維素酯薄 膜。 醯基的取代度的測量方法可依據ASTM-D8 17-96規定 Q 測量。 纖維素酯的數平均分子量爲5 0 0 0 0〜2 5 0 0 0 0，因爲成 型時機械的強度強，且變成適度的膠漿黏度而較佳，更佳 爲 80000-150000 ° 纖維素酯薄膜係藉由一般被稱爲溶液流延製膜法之將 纖維素酯溶解液（膠漿），例如於無限地移送之無端的金 屬輸送帶或旋轉的金屬轉筒的流延用支持體上從加壓模頭 流延膠漿（澆鑄）而製膜之方法所製造。 上述的良溶劑之中’又以使用溶解性優異的二氯甲烷 -27- 200928449 、或乙酸甲酯較佳。 除了上述有機溶劑之外，使其含有0.1〜4 0質量％的碳 原子數1~4的醇較佳，特別佳爲使其含有5~30質量％之 前述醇。 此乃將上述的膠漿流延至流延用支持體後，溶劑開始 _ 蒸發而醇的比率變多，則網狀物（膠漿膜）凝膠化，作爲 使網狀物堅固而輕易地從流延用支持體剝離之凝膠化溶劑 Q 使用，醇的比例少時，亦具有促進非氯系有機溶劑的纖維 素酯的溶解的作用。 亦可使用乙酸甲酯取代二氯甲烷，此時，亦可藉由冷 卻溶解法調製膠漿。 纖維素酯薄膜中，含有如下述的可塑劑較佳。作爲可 塑劑，較佳係可使用例如磷酸酯系可塑劑、多元醇酯系可 塑劑、苯二甲酸酯系可塑劑、偏苯三酸酯系可塑劑、均苯 四甲酸系可塑劑、乙醇酸酯系可塑劑、枸櫞酸酯系可塑劑 © 、聚酯系可塑劑、脂肪酸酯系可塑劑、多元羧酸酯系可塑 劑、具有1個以上12個以下之吡喃糖結構或呋喃糖結構 . 的至少1種且其結構的羥基的全部或一部份經酯化之酯化 合物等。 其他，含有相對於延伸方向顯示出負的配向雙折射性 之重量平均分子量爲500以上30000以下之丙烯基聚合物 較佳。 藉由使該聚合物的重量平均分子量爲500以上30000 以下者且控制該聚合物的組成，可使纖維素酯與該聚合物 -28- 200928449 的相溶性爲優良。 纖維素酯薄膜中之上述可塑劑的總含量，係相對於固 體成分總量，以5~20質量％較佳，6〜16質量％爲更佳， 特別佳爲8〜13質量％。 此外，2種的可塑劑的含量係各爲至少1質量％以上 ，較佳係各含有2質量％以上。 多元醇酯系可塑劑，以含有1〜15質量％較佳，特別 0 佳爲含有3〜11質量％。 <偏光板> 敍述關於使用本發明的光學薄膜之偏光板。 偏光板係可用一般的方法製作，本發明的防眩性薄膜 的裏面側進行鹼化處理，將經處理的防眩性薄膜，在於碘 溶液中浸漬延伸後所製作的偏光膜的至少一側之面上，使 用完全鹼化型聚乙烯醇水溶液進行貼合較佳。 Q 相對於本發明的光學薄膜，被使用於另一側之面的偏 光板保護薄膜，可適當選擇面内遲滯（R〇)、厚度方向遲 滯（Rt) 〇 再者，遲滯値R〇、Rt，可使用自動雙折射計測量， 例如可使用KOBRA-21ADH (王子計測機器（股）製）’ 在溫度23°C、濕度55%RH的環境下，於波長爲59〇nm中 計算得到。 作爲裏面側所使用的偏光板保護薄膜，較佳爲使用市 售的纖維素酯薄膜之 KC8UX2MW、KC4UX、KC5UX、 -29- 200928449 KC4UY、KC8UY、KC12UR、KC4UEW、KC8UCR-3、 KC8UCR-4、KC8UCR-5、KC4FR-1、KC4FR-2 ( Konicaminolta opt (股）製）等。 偏光板的主要構成要素爲偏光膜之意，係指只通過一 定方向的偏波面的光之元件，現在已知的代表性偏光膜， 爲聚乙烯醇系偏光薄膜，此仍聚乙烯醇系薄膜以碘染色者 或以二色性染料染色者，但並非僅限定於此。 Φ 偏光膜係使用聚乙烯醇水溶液進行製膜，使其一軸延 伸後染色，或染色後一軸延伸後，較佳以硼化合物進行持 久性處理者。 偏光膜的膜厚爲5~30μιη，較佳係使用8~15μηι的偏 光膜。該偏光膜之面上，貼合本發明的防反射薄膜的單面 而形成偏光板。 較佳係藉由以完全鹼化聚乙烯醇等作爲主成分之水系 的接著劑而貼合。 〇 <顯示裝置> 藉由將使用本發明的光學薄膜、或防眩性防反射薄膜 面組裝至顯不裝置的鑑賞面側，可製作各種辨視性優異的 本發明的顯示裝置。 本發明的光學薄膜’較佳係組裝至偏光板，使用於反 射型、穿透型、半穿透型LCD或ΤΝ型、STN型、OCB 型、HAN型、VA型（PVA型、MVA型）、IPS型等之各 種驅動方式的LCD。 -30- 200928449 此外.，本發明的光學薄膜係防眩層的反射光的顏色不 均勻明顯地較少，此外，反射率低、平面性優異’亦可適 用於電漿顯示器、場發射顯示器、有機EL顯示器、無機 顯示器、電子紙等之各種顯示裝置。 特別是，以電漿顯示器的前面板過濾器經加工、裝置 的電漿顯示器，係無光干擾不均勻且具有優異的辨視性之 顯示裝置。此外，即使是畫面 30型以上的大畫面的電漿 顯示器顯示裝置，具有顏色不均勻或波浪狀不均勻情況少 ，且長時間鑑賞亦不會眼睛疲勞之效果。 【實施方式】 依以下的作法，於透明薄膜基材之纖維素酯薄膜（The nodular chlorinated cerium oxide, 〇SNOWTEX-AK series, SNOWTEX-PS series, SNOWTEX-UP series, etc. of Nissan Chemical Industry Co., Ltd., specifically IPS-ST-L (isopropanol cerium oxide sol) , particle diameter 40 to 50 nm, cerium oxide concentration 30 ° /.), MEK-ST-MS (methyl ethyl ketone cerium oxide sol, particle diameter 17 7 23 nm, cerium oxide concentration 3 5%), MEK-ST (methyl ethyl ketone cerium oxide sol, particle diameter l〇~15nm, cerium oxide concentration 30%), MEK-ST-L (methyl ethyl ketone cerium oxide sol, particle diameter 4 〇 ~ 50 nm, cerium oxide concentration 30%), MEK-ST-UP (methyl ethyl ketone cerium oxide sol, particle Q diameter 9 to 15 nm (chain structure), cerium oxide concentration 20%). In addition, examples of the propylene-based particles include fluorine-containing acrylic resin particles, and examples thereof include S-4000, FS-701, and acryl-styrene particles, and examples thereof include, for example, Japanese PAINT: s_1200, MG- 251 and so on. Among these particles having an average particle diameter of 〇.〇1 to Ιμηι, it is preferable to use fluorine-containing acrylic resin particles. The particles having an average particle diameter of 〇·〇ΐ~ΐμπι are based on the stability of the coating liquid forming the antiglare layer and the dispersibility of the dispersion, and the content thereof is relative to the transparent resin constituting the antiglare layer of -15-200928449 100 parts by mass, preferably 0.01 to 500 parts by mass, more preferably 0.1 to 1 part by mass. In addition, the ratio of the content ratio of the particles having an average particle diameter of 〇·〇1 to 1 μm to the particles having an average particle diameter of 1.5 to 6 μm can be appropriately selected in the range of 0 to 5.00% by mass. The particles may be added in a state such as a powder or a latex, and the density of the light-transmitting particles is preferably from 10 to 10 mg/m2, more preferably from 100 to 700 mg. /m2 ° <Transparent Resin> The refractive index of the transparent resin constituting the antiglare layer of the present invention is preferably 1.47 or more, more preferably 1.47 to 1.70. In order to set the refractive index within this range, the type and amount ratio of the transparent resin can be appropriately selected. When the refractive index is less than 1 · 47, it is difficult to obtain a resin having a high hardness, and when the refractive index is more than 1.70, the unevenness of the film is apt to become conspicuous. Further, the refractive index of the transparent resin is directly measured by an Abbe refractometer, or quantitatively evaluated by measuring a spectroscopic reflection spectrum or a spectroscopic ellipsometry. The transparent resin is preferably a binder having a saturated hydrocarbon chain or a polyether chain as a main chain. A polymer having a saturated hydrocarbon chain as a main chain is more preferable. Particularly preferred is a resin which is cured by a crosslinking reaction or the like by irradiation with an active line such as ultraviolet rays or electron beams. As the curable resin, for example, an ultraviolet curable urethane acrylate resin, an ultraviolet curable polyester acrylate type-16-200928449 resin, an ultraviolet curable epoxy acrylate resin, and an ultraviolet curable type are preferably used. An ultraviolet curable acrylate resin such as a polyol acrylate resin or an ultraviolet curable epoxy resin. An ultraviolet curable urethane acrylate-based resin, generally obtained by reacting a polyester polyol with an isocyanate monomer or a prepolymer, and 2-hydroxyethyl acrylate, An acrylate-based monomer having a hydroxyl group such as 2-hydroxyethyl methacrylate (hereinafter, including methacrylate in acrylate, represented by acrylate only) or 2-hydroxypropyl acrylate is easily reacted get. For example, it is preferable to use, for example, UNIDIC 1 7-806 (manufactured by Dainippon Ink Co., Ltd.), and coronate L (Japanese polyaminocarboxylic acid), for example, as described in JP-A-59-151 1-10. Ethyl acetate (manufactured by ethyl acetate)) 1 part of a mixture or the like. The ultraviolet curable polyester acrylate-based resin is generally one which can be easily formed by reacting a polyester polyol with a 2-hydroxyethyl acrylate or a 2-hydroxy acrylate-based monomer. Those recorded in the Gazette No. 59-1 5 1 1 1 2 Specific examples of the ultraviolet curable epoxy acrylate-based resin include an epoxy acrylate as an oligomer, and a reactive diluent or a photopolymerization initiator is added thereto to cause a reaction. -1 05 73 The person recorded in the 8th bulletin. Specific examples of the ultraviolet curable polyol acrylate resin include trimethylolpropane triacrylate, ditrimethylolpropane tetraacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, and second season -17-200928449 Pentaerythritol hexaacrylate, alkyl-modified dipentaerythritol pentaacrylate, and the like. Specific examples of the photopolymerization initiator of such curable resins include benzoin and derivatives thereof, acetophenone, benzophenone, hydroxybenzophenone, michelone, and α-Emi Alpha-amyloxym ester, thio-ketone, etc. and derivatives thereof. It can also be used together with a photosensitizer. Further, when an epoxy acrylate-based photopolymerization initiator is used, a sensitizer such as η-butylamine, triethylamine or tri-η-butylphosphine can be used. The photopolymerization initiator or the photosensitizer used in the composition of the curable resin is 0.1 to 25 parts by mass, preferably 1 to 15 parts by mass, per 100 parts by mass of the composition. Examples of the acrylate-based resin include methacrylate, ethyl acrylate, butyl acrylate, benzyl acrylate, cyclohexyl acrylate, ethylene glycol diacrylate, propylene glycol diacrylate, and divinyl benzene. 1,4-cyclohexane diacrylate, 1,4-cyclohexyldimethyl diacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, and the like. ❹ As such a commercial item, ADEKA OPTOMER KR · BY series: KR-400, KR-410, KR-5 50, KR-56 6, KR-567, BY-320B (made by Asahi Denki Co., Ltd.); Guangrong Hatton A-101-KK, A-101-ws 'C-302, C-40 1-N, C-50 1, Μ-1 0 1, Μ-1 02, T-1 02, D- 102, NS-101, FT-102Q8, MAG-1-P20, AG-106, M-101-C (Guangrong Chemical Co., Ltd.); SEIKA-BEAM PHC2210 (s), PHC X-9 (K- 3), PHC2213, DP-10, DP-20, DP-30, P 1 000, P1100, P 1 200, P 1 3 00, P 1400, P 1 5 00, P1 600, SCR900 (Dai Ri Jinghua Industry ( ()))); KRM703 3, -18- 200928449 KRM7039, KRM7130, KRM7131, UVECRYL29201, UVECRYL29202 (DAICEL-CYTEC (share) system); RC-5015, RC-5016, RC-5020, RC-503 1, RC- 5100, RC-5102, RC-5120, RC-5122, RC-5152, RC-5171, RC-5180, RC-_ 5181 (Daily Ink Chemical Industry Co., Ltd.); OLEX No. 340 Keliya (China) Coating (stock) system; SANRAD H-601, RC-75 0, RC-700, RC-600, RC-500, RC-611, RC-612 (Sanyo Chemical Industry 0); SP-1509 , SP-1507 (Showa high score Sub-shares; RCC-15C (GRACE JAPAN), ARONIX M-6100, M-803 0, M-8060 (made by East Asia Synthetic Co., Ltd.), NK HARD B-420, NK Ester A -DOG, NK ester A-IBD-2E (manufactured by Shin-Nakamura Chemical Co., Ltd.) can be appropriately selected and used. Further, examples thereof include trimethylolpropane triacrylate, di-trimethylolpropane tetraacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol hexaacrylate, dioxanediol decyl acrylate, Ethoxylated acrylate, alkyl-modified dipentaerythritol pentaacrylate, and the like. Further, the antiglare layer may contain a fluorine-propylene based copolymer resin. The term "fluoro-propylene-based copolymer resin" means a copolymer resin composed of a fluoromonomer and a propylene-based monomer, particularly a block copolymer composed of a fluoromonomer segment and a propylene-based monomer segment. Preferably. <Other substances contained in anti-glare> In the anti-glare layer, polyoxyalkylene-based -19-200928449 resin powder, polystyrene-based resin powder, polycarbonate resin powder, and poly can be added as other organic particles. An ultraviolet curable resin composition such as an olefin resin powder, a polyester resin powder, a polyamide resin powder, a polyamidene resin powder, or a polyvinyl fluoride resin powder. Further, if necessary, the particles described in JP-A-2000-241807 may be further contained. Further, the refractive index of the other particles is preferably 1.4 5 to 1 · 70, more preferably ❾ 1.45 to 1.65. In addition, the refractive index of the particles is a solvent in which the particles are dispersed in an equal amount by changing the mixing ratio of the two types of solvents having different refractive indexes, and the turbidity is measured, and the turbidity is extremely small. The refractive index was measured by measurement with an Abbe refractometer. Further, the anti-glare layer may preferably contain, as a surfactant, the following polyoxoline-based surfactant, fluorine-based compound, polyoxyether compound, and the like. These components are improved in productivity by continuously improving the planar uniformity by making them have a high-speed coating suitability. A preferred example of the fluorine-based compound is a copolymer containing a fluoroaliphatic group. Specifically, a compound described in paragraphs 005 3 to 0 0 82 of JP-A-2007-45 1 42 or a description method can be used. Further, a compound or a description method described in paragraph 0008-003 1 of JP-A No. 2000-1 1 9354 can also be used. These components are added in the range of 0.01 to 5% by mass based on the solid content in the coating liquid, and it is preferred to exhibit an effect of improving surface unevenness such as uneven coating, uneven drying, and point defects. . -20- 200928449 Further, as the fluorine-based compound, it is preferred to use a graft of a fluorinated resin such as a polyoxyalkylene oxide (including a polyoxyalkylene oxide) and/or an organic germanium alkane (including an organic polysiloxane). a polymer of a copolymer. Specifically, ZX-022H, ZX-007C, ZX-049, ZX-047-D, etc., manufactured by Fuji Chemical Industry Co., Ltd., may also be mentioned, and these compounds may also be used in combination. Examples of commercially available products of polyoxyethylene alkyl ethers include Emulgen® 1108 and Emulgen 1118S-70 (above, Kao), and commercially available products of polyoxyethylene lauryl ether include Emulgen 103 and Emulgen. 1 0 4 P ' Emulgen 105, Emulgen 106, Emulgen 10 8, Emulgen 10 9 P, Emulgen 12 0, Emulgen 12 3 P, Emulgen 147, Emulgen 150, Emulgen 130K (above, Kao) As a commercial item of the ethylene cetyl ether, Emulgen 210P and Emulgen 220 (above, Kao) can be cited as a commercial product of polyoxyethylene stearyl phthalate, and Emulgen Q 22 0 and Emulgen are mentioned. 306P (above, Kao (share) system); as a commercial product of polyoxyalkylene alkyl ether, Emulgen LS-106, Emulgen LS-110, Emulgen LS-114, Emulgen MS-110 (above, Kao) As a commercial item of a polyoxyethylene higher alcohol ether, Emulgen 705, Emulgen 707, Emulgen 709, etc. are mentioned. The polyoxyether compound may be used singly or in combination of two or more kinds, and an acetylene glycol compound, a nonionic surfactant, a free radical polymerizable nonionic surfactant, or the like may be used. The anti-glare layer may contain a color tone adjusting agent (dye, pigment, or the like) having a color tone adjustment function as a color filter for various display elements - 200928449. Further, it may contain an electromagnetic wave blocking agent. Or the function of the infrared absorber or the like. The anti-glare layer may contain other functional thiolated compounds as a hardening aid, and examples thereof include 1,4-bis(3-mercaptobutyloxy)butane and pentaerythritol ruthenium (3-mercaptobutyric acid). Ester), 1,3,5-gin(3-mercaptobutyloxy 0 ethyl)-1,3,5-triazine-2,4,6(111,311,511)-trione, and the like. In addition, the commercially available product may be a karenz MT series product of the Showa Denko Co., Ltd., and the other functional thiol compound may be added in an amount of 1 to 50 parts by mass based on 1 part by mass of the active energy ray-curable resin. More preferably, it is preferably 0.05 to 30 parts by mass. By adding in the above range, the hardening aid acts properly, and is also present in the antiglare layer in a stable manner. In the anti-glare layer, in order to adjust hardness, antistatic, and refractive index 层 of the layer, in addition to the organic particles of the present invention, it may be further selected from titanium, zirconium, aluminum, indium, zinc, tin, and antimony. The oxide of at least one metal is a main component, and the average particle diameter is ΙΟμηη or less, for example, 2 μm or less, preferably 0.2 μm or less, particularly preferably Ο.ίμιη or less, more preferably 0.06 μιη or less. . Among the oxides of at least one metal selected from titanium, zirconium, indium, zinc, tin, and antimony, titanium or zirconium is preferred. The inorganic particles used in the antiglare layer are preferably treated with a decane coupling agent or a titanium coupling agent, and preferably a surface treating agent having a functional group capable of reacting with the -22-200928449 binder on the surface of the chelating agent. . The surface treatment agent may be used in combination with the coating composition without prior treatment with a coupling agent. When such inorganic particles are used, the amount thereof is preferably from 10 to 90%, more preferably from 20 to 80%, particularly preferably from 30 to 75%, based on the total mass of the antiglare layer. Since such an inorganic particle has a particle diameter sufficiently smaller than the wavelength of light, the dispersion 0 in which the enthalpy is dispersed in the binder polymer is not generated, and optically acts as a uniform substance. <Method for Producing Antiglare Layer> The antiglare layer is preferably a gravure photographic coating, a dip coating, a reverse coating, a wire bar coating, a die coater, an inkjet coating method, or the like. A conventional method such as a conventional method is applied to form a coating composition for forming an antiglare layer, followed by heat drying after drying, and UV curing treatment. The coating amount is suitably from 0.1 to 40 μm in terms of wet film thickness, preferably from 0 to 5 to 30 μm, and the average film thickness is from 0.1 to 30 μm, preferably from 1 to 1 in terms of dry film thickness. 2 0 μm, in this range, deterioration of hardness, deterioration of warpage or brittleness, and reduction in workability are prevented. The film thickness of the antiglare layer is preferably larger than the average particle diameter of the fluorine-containing acrylic resin particles to be added, and more preferably 1.3 times to 7 times the average particle diameter of the resin particles. As the light source for the above UV curing treatment, any light source capable of generating ultraviolet rays can be used without limitation. For example, a low pressure mercury lamp, a medium pressure mercury lamp, a high pressure mercury lamp, an ultra high pressure mercury lamp, a carbon arc lamp, a metal -23-200928449 halogen lamp, a xenon arc lamp, or the like can be used. The irradiation conditions vary depending on the lamps, but the irradiation amount of the active rays is usually 5 to 500 mJ / cm2 > preferably 5 to 150 mJ/cm2. Further, when the active wire is irradiated, it is preferable to apply tension in the conveyance direction of the film, and it is more preferable to apply the tension in the width direction, and the tension is preferably 30 to 30 ON/m. The method of imparting the tension is not particularly limited, and the tension can be imparted to the back pressure roller in the conveyance direction, and the tension can be imparted in the width direction or the two-axis direction by the tenter, whereby the flatness can be excellent. film. The coating composition forming the antiglare layer may further contain a solvent, and the organic solvent contained in the coating composition is appropriately selected, for example, from hydrocarbons (toluene, xylene), alcohols (methanol, ethanol, isopropanol, Butanol, cyclohexanol), ketones (acetone, methyl ethyl ketone, methyl isobutyl ketone), esters (methyl acetate, ethyl acetate, methyl lactate), glycol ethers, other organic In the solvent, or may be used in combination. As the organic solvent, hydrazine monoalkyl ether (alkyl group carbon number 1 to 4) or propylene glycol monoalkyl ether acetate (alkyl group carbon number 1 to 4) is preferable, and 'organic solvent content The coating composition is preferably 5 to 80% by mass. <Other layer><Antistaticlayer> The transparent film substrate of the present invention is preferably provided with an antistatic layer, and the antistatic layer is preferably provided between the transparent film substrate and the antiglare layer. -24- 200928449 The antistatic layer is made of a zinc silicate sol, a tin phosphate sol, a tin oxide sol, etc., which is hardened by a crosslinking reaction or the like by irradiation with an active line such as ultraviolet rays or electron rays in accordance with a method for producing an antiglare layer. Preferred among the resins. <Backcoat layer> The optical film of the present invention may be provided with a back coat layer on the surface opposite to the side on which the antiglare layer is provided. The φ back coat layer is provided for correcting the warpage caused by the provision of the antiglare layer, that is, the curling property of the back coat layer is set to the inside, so that the warpage can be balanced. Further, the back coat layer is preferably coated with an anti-blocking layer. In this case, in the back coat coating composition, an inorganic compound may be added in order to have an anti-sticking function. Or particles of an organic compound are preferred. The surface treatment may be carried out before applying each of the above layers. Examples of the surface treatment method include a washing method, an alkali treatment method, a flame plasma treatment (flame Q plasma treatment), a high-frequency discharge plasma method, an electron beam method, and an ion. Beam method, sputtering method, acid treatment, corona treatment method, atmospheric pressure glow discharge plasma method, and the like. <Transparent film substrate> The transparent film substrate of the present invention is preferably produced by being easy to manufacture, excellent in adhesion to an antiglare layer, optically isotropic, optically transparent, and the like. The term "transparent" as used herein means that the transmittance of visible light is 60% or more and 25 to 200928449, preferably 80% or more, particularly preferably 90% or more, and the transparent film thickness is preferably 10 to 200 μm, more preferably 20~70μπι. As long as it has the above properties, there is no particular mention of, for example, a cellulose diacetate film, a cellulose triacetate acephate acetate propionate film, or a cellulose acetate butyrate ester film. Polyester film, polycarbonate film film, poly-rolled (also including polyether fluorene) film, polyester film such as polyparaphenylene ester or polyethylene naphthalate, polypropylene film, Cellophane, polyvinylidene chloride film, ethylene vinyl alcohol film, syndiotactic polystyrene ring olefin polymer film (ART ON (JSR)), ZEONOR (above, manufactured by Nippon Paint Co., Ltd.) Poly, polymethylpentene film, polyether ketone film, polyether ketone amide film, fluororesin film, nylon film, polymethyl film, acryl film or glass plate. Further, among them, a cellulose ester-based film, a polycarbonate-based thin polyether-containing film, and a cycloolefin polymer film are preferable. In the present invention, in particular, a cellulose ester system is used. Konicaminolta tak, product name KC8UX, KC4UX KC8UCR3, KC8UCR4, KC8UCR5, KC8UY KC4UE, KC12UR (above, Konicaminolta opt), is excellent in manufacturing, cost, transparency, and adhesion. These films may be limited to a film substrate produced by a melt casting film forming method, but may be a fiber such as an ester film or a fiber film, a polyarylate type ethylene dicarboxylate film, a vinyl film, an olefin film, or the like. ZEONEX ethylene acetal film, polyacrylate film, polyfluorene (acquisition film (for example, KC5UX, KC4UY, manufactured by the company)) is a film, or -26-200928449 for solution casting A film produced by a film forming method. A cellulose ester film (hereinafter also referred to as a cellulose ester film) is preferably used as the transparent film substrate. As the cellulose ester, cellulose acetate and cellulose acetate are used. Butyrate and cellulose acetate propionate are preferred, and cellulose acetate butyrate, cellulose acetate phthalate, and cellulose acetate propionate are preferably used. 0 In particular, it is preferred to use a cellulose ester film having X and Y in the following range when the degree of substitution of the ethyl group is X, and the degree of substitution of the propyl group or the butyl group is Y. 2.3SX + YS3. 0 0.1SYS2.0 Especially 2.5SX + YS2.9 0.3SYS1.2 is preferred. Hereinafter, a cellulose ester film of a preferred transparent resin film will be described in detail. The method for measuring the degree of substitution of the fluorenyl group can be measured according to ASTM-D8 17-96. The number average molecular weight of the cellulose ester is 50,000. ~2 5 0 0 0 0, because the mechanical strength during molding is strong, and it becomes a moderate viscosity of the glue, preferably 80,000 to 150,000 °. The cellulose ester film is formed by a film casting process generally called solution casting. The cellulose ester dissolving solution (slurry) is cast from a pressurizing die (casting) on a casting support for an endless metal conveyor belt or a rotating metal drum which is infinitely transferred. In the above-mentioned good solvent, it is preferable to use dichloromethane-27-200928449 or methyl acetate which is excellent in solubility, and it is contained in addition to the above organic solvent, and it contains 0.1 to 40. The mass% of the alcohol having 1 to 4 carbon atoms is preferable, and it is particularly preferable to contain 5 to 30% by mass of the above alcohol. After the above-mentioned dope is cast to the support for casting, the solvent starts to evaporate. When the ratio of alcohol is increased, the mesh (slurry film) is gelatinized. When the ratio of the alcohol is small, the gelling solvent Q which is easily detached from the casting support is used, and the effect of promoting the dissolution of the cellulose ester of the non-chlorinated organic solvent is also used. Methyl acetate is substituted for methylene chloride. In this case, the dope may be prepared by a cooling dissolution method. The cellulose ester film preferably contains a plasticizer as described below. As the plasticizer, for example, a phosphate ester system is preferably used. Plasticizer, polyol ester plasticizer, phthalate plasticizer, trimellitate plasticizer, pyromellitic acid plasticizer, glycolate plasticizer, phthalate plasticizer © a polyester-based plasticizer, a fatty acid ester-based plasticizer, a polycarboxylic acid ester-based plasticizer, at least one of having at least one pyridose structure or a furanose structure of 12 or less and having a structure of a hydroxyl group All or a portion of the esterified ester compound or the like. Further, a propylene-based polymer having a weight average molecular weight of from 500 to 30,000 or less which exhibits negative alignment birefringence with respect to the extending direction is preferred. By making the weight average molecular weight of the polymer 500 or more and 30,000 or less and controlling the composition of the polymer, the compatibility of the cellulose ester with the polymer -28-200928449 can be excellent. The total content of the above plasticizer in the cellulose ester film is preferably from 5 to 20% by mass, more preferably from 6 to 16% by mass, particularly preferably from 8 to 13% by mass, based on the total amount of the solid component. Further, the content of the two types of plasticizers is at least 1% by mass or more, and preferably 2% by mass or more. The polyol ester-based plasticizer is preferably contained in an amount of from 1 to 15% by mass, particularly preferably from 0 to 11% by mass. <Polarizing Plate> A polarizing plate using the optical film of the present invention will be described. The polarizing plate can be produced by a general method, and the back side of the anti-glare film of the present invention is alkalized, and the treated anti-glare film is at least one side of the polarizing film produced by immersing and stretching the iodine solution. It is preferred to use a fully alkalized polyvinyl alcohol aqueous solution for the surface to be bonded. Q The optical film of the present invention is used for the polarizing plate protective film on the other side, and the in-plane retardation (R〇) and the thickness direction retardation (Rt) can be appropriately selected. Further, hysteresis 値R〇, Rt It can be measured using an automatic birefringence meter, for example, using KOBRA-21ADH (manufactured by Oji Scientific Instruments Co., Ltd.) at a temperature of 23 ° C and a humidity of 55% RH at a wavelength of 59 〇 nm. As the polarizing plate protective film used for the inside side, it is preferable to use a commercially available cellulose ester film of KC8UX2MW, KC4UX, KC5UX, -29-200928449 KC4UY, KC8UY, KC12UR, KC4UEW, KC8UCR-3, KC8UCR-4, KC8UCR. -5, KC4FR-1, KC4FR-2 (Konicaminolta opt (manufactured by the company)). The main constituent element of the polarizing plate is a polarizing film, which means a light element that passes only a polarizing surface in a certain direction. A representative polarizing film which is known now is a polyvinyl alcohol-based polarizing film, which is still a polyvinyl alcohol-based film. Those who stain with iodine or those who dye with dichroic dyes are not limited thereto. The Φ polarizing film is formed by using a polyvinyl alcohol aqueous solution to form a film, which is stretched by one axis and dyed, or after stretching one axis after dyeing, preferably with a boron compound for durability treatment. The film thickness of the polarizing film is 5 to 30 μm, and preferably a polarizing film of 8 to 15 μm is used. On one surface of the polarizing film, a single side of the antireflection film of the present invention is bonded to form a polarizing plate. It is preferable to bond by a water-based adhesive which is a fully alkalized polyvinyl alcohol or the like as a main component. 〇 <Display device> The display device of the present invention having excellent visibility can be produced by assembling the optical film or the anti-glare anti-reflection film of the present invention to the viewing surface side of the display device. The optical film of the present invention is preferably assembled to a polarizing plate for use in a reflective, transmissive, semi-transmissive LCD or ΤΝ type, STN type, OCB type, HAN type, VA type (PVA type, MVA type). LCDs of various driving methods such as IPS type. -30- 200928449 In addition, the optical film-based antiglare layer of the present invention has significantly less uneven color of reflected light, and has low reflectance and excellent planarity. It can also be applied to a plasma display, a field emission display, Various display devices such as organic EL displays, inorganic displays, and electronic paper. In particular, a plasma display device which is processed by a front panel filter of a plasma display device is a display device which has no uneven light interference and excellent visibility. Further, even a plasma display device having a large screen of a size of 30 or more has an effect of uneven color or wavy unevenness, and does not cause eye fatigue for a long time of appreciation. [Embodiment] According to the following method, a cellulose ester film on a transparent film substrate (

Konicaminolta takKC4UY、Konicaminolta opt (股）製、 三乙醯基纖維素、乙醯基取代度2.9、膜厚40μϊη)上設置 防眩層、背塗層，製作實施例試料1~19，比較例試料1〜8 ❹ 再者，實施例試料10、13係使用下述的Α及Β作爲 透明薄膜基材。 <試料的製作> 於透明薄膜基材上，將防眩層用塗佈組成物1進行狹 縫式塗佈，以80°C乾燥後，以高壓水銀燈照射〇.3(U/cm2 的紫外線，塗設硬化後的膜厚成爲5 μιη之防眩層，僅透 明樹脂的折射率爲1.49。 3 5質量份 3 5質量份 1 5質量份 1 5質量份 3 0質量份 45質量份 25質量份 200928449 粒子1 :本發明的平均粒徑1.5〜6μχη的含 樹脂粒子及作爲比較試料之平均粒徑0.55μιη、 氟的丙烯酸樹脂粒子 粒子2:本發明的平均粒徑〇.〇1〜1.〇μιη的 而且於與塗設防眩層之面相反側之面上， 下述的背塗層用塗佈組成物1之液而使網狀 6μιη，設置背塗層，製作於纖維素酯薄膜上設 背塗層之光學薄膜比較例試料1。 再者，依試料所變更的内容列示於表1〜3 (防眩層用塗佈組成物1) 丙酮 乙酸乙酯 環己酮 甲苯 Q 季戊四醇三丙烯酸酯 季戊四醇四丙烯酸酯 胺基甲酸乙酯丙烯酸酯 (商品名U-4HA新中村化學工業公司製） 1- 羥基環己基-苯基-酮 8質量份 (IRGACURE184 Ciba Specialty chemicals 2- 甲基-l-[4-(甲基硫）苯基]-2-嗎啉代p IRGACURE907、Ciba Specialty chemicals (股）製） 粒子1 :粒子A 5質量份 氟的丙烯酸 7.5 μηι之含 粒子 狹縫式塗佈 物膜厚成爲 置防眩層及 (股）製） 1烷-1-酮（ 8質量份 -32- 200928449 粒子2 〇質量份 其他實施例及比較例所使用的粒子如下述。 粒子 A:含有氟的聚甲基甲基丙烯酸酯粒子（曰本 PAINT (股）製 F-1 91平均粒徑〇.55μιη折射率1.42 ) 粒子Β:含有氟的聚甲基甲基丙烯酸酯粒子（平均粒 徑1·5μηι折射率1.42 ) 粒子C:含有氟的聚甲基甲基丙烯酸酯粒子（平均粒 0 徑2·0μηι折射率1.42 ) 粒子D:含有氟的聚甲基甲基丙烯酸酯粒子（根上工 業（股）製 MF-0043 平均粒徑3·5μιη折射率1.42) 粒子Ε:含有氟的聚甲基甲基丙烯酸酯粒子（平均粒 徑6.0μιη 折射率1.42) 粒子F:含有氟的聚甲基甲基丙烯酸酯粒子（平均粒 徑7.5μιη折射率1.42) Φ 粒子G :二氧化矽粒子（平均粒徑4.0μιη折射率 1.46) 粒子Η :二氧化矽粒子（平均粒徑 1 · Ομηι折射率 1.46 ) (背塗層用塗佈組成物1 ) 丙酮 3 0質量份 乙酸乙酯 45質量份 異丙基醇 10質量份 -33-An anti-glare layer and a back coat layer were prepared on Konicaminolta takKC4UY, Konicaminolta opt (manufactured by Konicaminolta opt), triethylenesulfonyl cellulose, acetylation degree of 2.9, and film thickness of 40 μm, and samples of Examples 1 to 19 were prepared. Comparative Example 1 ～8 ❹ Further, in the examples 10 and 13, the following ruthenium and iridium were used as the transparent film substrate. <Preparation of sample> The anti-glare layer coating composition 1 was subjected to slit coating on a transparent film substrate, dried at 80 ° C, and then irradiated with a high-pressure mercury lamp 〇.3 (U/cm 2 ) Ultraviolet rays, the film thickness after coating hardening is 5 μm, and the refractive index of only the transparent resin is 1.49. 3 5 parts by mass 3 5 parts by mass 15 parts by mass 15 parts by mass 30 parts by mass 45 parts by mass 25 In the present invention, the average particle diameter of the present invention is 0.02. The surface of the back coating layer on the side opposite to the surface on which the antiglare layer is applied is used to form a back coat layer with a liquid of 6 to be coated with a liquid of the coating composition 1 to prepare a cellulose ester film. The optical film of Comparative Example 1 was provided with a back coat layer. The contents changed according to the sample are shown in Tables 1 to 3 (coating composition 1 for antiglare layer) acetone ethyl acetate cyclohexanone toluene Q pentaerythritol Triacrylate pentaerythritol tetraacrylate urethane acrylate ( Product name U-4HA, manufactured by Shin-Nakamura Chemical Co., Ltd.) 1-hydroxycyclohexyl-phenyl-ketone 8 parts by mass (IRGACURE 184 Ciba Specialty chemicals 2-methyl-l-[4-(methylthio)phenyl]-2- Morpholino p IRGACURE 907, manufactured by Ciba Specialty Chemicals Co., Ltd.) Particle 1 : Particle A 5 parts by mass of fluorine, acrylic acid 7.5 μηι containing particles, slit coating material, film thickness, anti-glare layer, and (manufactured by the company) 1 Alkan-1-one (8 parts by mass - 32 - 200928449 particles 2 parts by mass) The particles used in the other examples and comparative examples are as follows. Particle A: Polymethyl methacrylate particles containing fluorine (曰本 PAINT ( F-1 91 average particle size 〇.55μιη refractive index 1.42) Particle Β: fluorine-containing polymethyl methacrylate particles (average particle size 1·5μηι refractive index 1.42) Particle C: fluorine-containing polymethyl Methyl methacrylate particles (average particle diameter 0·0μηι refractive index 1.42) Particle D: fluorine-containing polymethyl methacrylate particles (Mengshang Industrial Co., Ltd. MF-0043 average particle diameter 3·5 μιη refractive index 1.42) Particle Ε: Polymethyl methacrylate particles containing fluorine (average particle size 6.0μ η refractive index 1.42) Particle F: Polymethyl methacrylate particles containing fluorine (average particle diameter 7.5 μm refractive index 1.42) Φ Particle G: cerium oxide particles (average particle diameter 4.0 μm refractive index 1.46) Particle Η : Cerium oxide particles (average particle diameter 1 · Ομηι refractive index 1.46) (coating composition 1 for back coat layer) acetone 30 parts by mass ethyl acetate 45 parts by mass isopropyl alcohol 10 parts by mass - 33-

200928449 0 · 6質 超粒子二氧化矽2%丙酮分散液 0.2質 實施例試料14及15，係塗佈防眩層前設置 的防靜電層’塗佈乾燥、硬化條件，係依據防眩 進行。 (防靜電層用塗佈組成物1、ANSI) 丙酮 3 5質量份 乙酸乙酯 35質量份 環己酮 1 5質量份 甲苯 1 5質量份 季戊四醇三丙烯酸酯 30質量份 季戊四醇四丙烯酸酯 45質量份 胺基甲酸乙酯丙烯酸酯 25質量份 (商品名U-4HA新中村化學工業公司製） 1-經基環己基-苯基-酮 8質量份 (IRGACURE184 Ciba Specialty chemicals ,上 2 -甲基- l- [4-(甲基硫）苯基卜2_嗎啉代丙彳 IRGACURE907、Ciba Specialty chemicals 公司製） 鍊酸綷溶膠 100質量份（固體成 (CX-Z610M-F2、日產化學工業（股）製） 實施例試料15’取代實施例試料14的銻酸 同量使用氧化錫-磷酸溶膠（ANS2)。 量份 量份 下述組成 層的塗設200928449 0 · 6-mass super-particles cerium dioxide 2% acetone dispersion 0.2-quality Example samples 14 and 15 are antistatic layers provided before application of the anti-glare layer. Coating drying and curing conditions are carried out according to anti-glare. (Coating composition for antistatic layer 1, ANSI) Acetone 35 parts by mass of ethyl acetate 35 parts by mass of cyclohexanone 1 part by mass of toluene 1 5 parts by mass of pentaerythritol triacrylate 30 parts by mass of pentaerythritol tetraacrylate 45 parts by mass 25 parts by mass of urethane acrylate (trade name U-4HA, manufactured by Shin-Nakamura Chemical Co., Ltd.) - 8 parts by mass of cyclohexyl-phenyl-ketone (IRGACURE 184 Ciba Specialty chemicals, upper 2-methyl-l - [4-(methylthio)phenyl b 2_morpholinopropene IRGUCURE 907, manufactured by Ciba Specialty Chemicals Co., Ltd.) 100 parts by mass of lanthanum sol sol (solid product (CX-Z610M-F2, Nissan Chemical Industry Co., Ltd.) The sample of the example 15' was replaced with the tin oxide-phosphorus sol (ANS2) in place of the same amount of the citric acid of the sample of the sample 14. The parts of the following composition layer were coated.

❹ b司製） 完-1 -酮（ 8質量份 分換算） 鋅溶膠， -34- 200928449 <透明薄膜基材A及B> (透明薄膜基材A的製作方法） <纖維素酯薄膜> (二氧化砂分散液A) AEROSILR972V (曰本 AEROSIL (股）製）12 質量份 (―次粒子的平均徑16nm、表觀比重90g /升） 乙醇 8 8質量份 ❹ 將以上用溶解器攪拌混合30分鐘後，用高壓均漿器 進行分散，分散後的液濁度爲200PPm。 於二氧化矽分散液中一邊攪拌一邊投入88質量份的 二氯甲烷，用溶解器攪拌混合30分鐘，製作二氧化矽分 散稀釋液A。 (管內（in line )添加液A的製作） TINUVIN109 ( Ciba Specialty chemicals (股）製） 11 質量份 φ TINUVIN171 (Ciba Specialty chemicals (股）製） 5 質量份 二氯甲烷 1〇〇質量份 將以上投至密閉容器中，一邊加熱、攪拌，一邊使其 完全地溶解、過瀘。 於其中一邊攪拌一邊加入36質量份之二氧化矽分散 稀釋液A，再攪拌30分鐘，一邊攪拌一邊加入纖維素乙 酸酯丙酸酯（乙醯基取代度1.9、丙醯基取代度0.8) 6質 量份，而且攪拌60分鐘後，用ADVANTEC東洋（股）之 polypropylene wound cartridge fi 11 er T C W-P P S -1 N 過濾， -35- 200928449 調製管內添加液A。 (膠漿液A的調製） 纖維素酯（由棉絨所成的纖維素三乙酸酯） 100質量份 (Mn=148000、Mw = 310000、Mw/Mn = 2.1、乙酶基取 代度2.92 ) 三羥甲基丙烷三苯甲酸酯 5.0質量份 乙基苯二甲醯基乙基乙醇酸酯 5.5質量份 二氯甲烷 440質量份 乙醇 40質量份 將以上投入密閉容器中，一邊加熱、攪拌，一邊完全 溶解，用安積濾紙（股）製的安積濾紙No .24過濾，調製 膠漿液A。 製膜管線中用日本精線（股）製的FIN EMETNF過濾 〇 膠漿液A，管內添加液管線中，用日本精線（股）製的 FINEMET NF過濾管內添力口液A。 相對於經過濾的膠漿液A之100質量份’添加2質 量份之經過濾的管內添加液A，用管內混合機（東曹靜1 型管內混合機 Hi-Mixer、SWJ )充分混合，接著’使用 帶狀流延裝置，以溫度35。(：、2000mm寬度’均句的流延 於不銹鋼帶支持體。 於不銹鋼帶支持體，蒸發溶劑至殘留溶胃1 120%爲止，自不銹鋼帶支持體剝離。 -36- 200928449 然後，一邊以溫度1651用拉幅機於TD方向（薄膜 的搬運方向垂直方向）上拉伸1.2倍，於MD方向（與薄 膜的搬運方向之平行方向）上進行1.1倍拉伸，此時用拉 幅機開始拉伸時的殘留溶劑量爲2%。 然後，將ll〇°C及120°C的乾燥區，一邊用多數的滾 輪依序搬運一邊結束乾燥，裁斷爲1 500mm寬，薄膜兩端 施以寬度15mm、平均高度ΙΟμιη的壓花加工，以捲繞初 φ 期張力220Ν/Π1、結束張力110N/m用內徑6英吋卷芯進 行捲繞，得到纖維素酯薄膜（透明薄膜基材A)。 纖維素酯薄膜的残留溶劑量低於0.1%，平均膜厚爲 80μιη，捲繞長度爲4000m。❹ b system) -1 - ketone (8 parts by mass conversion) zinc sol, -34- 200928449 <transparent film substrate A and B> (manufacturing method of transparent film substrate A) <cellulose ester film > (Silica dioxide dispersion A) AEROSILR972V (manufactured by AE AEROSIL Co., Ltd.) 12 parts by mass (-average diameter of secondary particles: 16 nm, apparent specific gravity: 90 g / liter) 8 8 parts by mass of ethanol ❹ The above dissolver After stirring and mixing for 30 minutes, the mixture was dispersed by a high pressure homogenizer, and the liquid turbidity after dispersion was 200 ppm. 88 parts by mass of dichloromethane was added to the cerium oxide dispersion while stirring, and the mixture was stirred and mixed for 30 minutes with a dissolver to prepare a cerium oxide dispersion diluted solution A. (Production of in-line addition liquid A) TINUVIN 109 (manufactured by Ciba Specialty Chemicals Co., Ltd.) 11 parts by mass φ TINUVIN 171 (manufactured by Ciba Specialty Chemicals Co., Ltd.) 5 parts by mass of methylene chloride 1 part by mass or more It is poured into a closed container, and it is completely dissolved and dried while being heated and stirred. While stirring, 36 parts by mass of the cerium oxide dispersion diluent A was added, and the mixture was further stirred for 30 minutes, and the cellulose acetate propionate was added with stirring (the degree of substitution of acetonitrile was 1.9, and the degree of substitution of propyl ketone was 0.8). 6 parts by mass, and after stirring for 60 minutes, it was filtered with ADVANTEC Toyo Co., Ltd., a polypropylene wound cartridge fi 11 er TC WP PS -1 N , and -35-200928449 to prepare a liquid A in the tube. (Preparation of the dope A) Cellulose ester (cellulose triacetate formed from cotton linters) 100 parts by mass (Mn = 148000, Mw = 310000, Mw / Mn = 2.1, degree of substitution of the enzyme 2 2.92) Methylolpropane tribenzoate 5.0 parts by mass ethyl hexyl decyl ethyl glycolate 5.5 parts by mass of dichloromethane 440 parts by mass of ethanol 40 parts by mass The above is put into a sealed container and heated and stirred. The solution was completely dissolved, and filtered with a filter paper No. 24 made of filter paper (manufactured) to prepare a paste A. In the membrane line, FIN EMETNF made by Nippon Seiki Co., Ltd. was used to filter 〇 Mucilage A, and in the in-line addition liquid line, a liquid A was added to the FINEMET NF filter tube made of Nippon Seisen Co., Ltd. Adding 2 parts by mass of the filtered in-line addition liquid A to the 100 parts by mass of the filtered cement A, thoroughly mixed with an in-line mixer (Tosohagi 1 type in-line mixer Hi-Mixer, SWJ) Then, 'use a strip casting device to a temperature of 35. (:, 2000mm width 'all sentences are cast on the stainless steel belt support. In the stainless steel belt support, the solvent is evaporated until the residual solution is 120%, and the strip is removed from the stainless steel belt. -36- 200928449 Then, the temperature is on one side 1651 is stretched 1.2 times in the TD direction (the direction perpendicular to the conveying direction of the film) by a tenter, and stretched 1.1 times in the MD direction (parallel direction to the conveying direction of the film). At this time, the tenter is used to start pulling. The amount of residual solvent at the time of stretching was 2%. Then, the drying zone at ll 〇 ° C and 120 ° C was dried while being conveyed by a plurality of rollers in sequence, and cut to a width of 1 500 mm, and a width of 15 mm was applied to both ends of the film. The embossing process having an average height of ΙΟμηη was wound with a winding core of an inner diameter of 6 吋1 at a winding initial tension of 220 Ν/Π1 and a final tension of 110 N/m to obtain a cellulose ester film (transparent film substrate A). The cellulose ester film had a residual solvent amount of less than 0.1%, an average film thickness of 80 μm, and a winding length of 4000 m.

此時的薄膜的彈性率係MD方向4000 ( MPa ) 、TD 方向 3 700 ( MPa )。 (透明薄膜基材B的製作方法） © 關於透明薄膜基材A的製作，除了將二氧化矽分散 液A變更爲下述的處方B以外，以同樣的作法，製作透 明薄膜基材B。 (二氧化矽分散液B) AEROSILR972V (曰本 AEROSIL (股）製） 1 2質量份 (—次粒子的平均粒徑16ηιη、表觀比重90g/升） SX8705 ( P ) -01 (JSR (股）製） 20 質量份 -37- 200928449 (平均粒徑2.0 μηι的苯乙烯系交聯粒子） 乙醇 6 8質量份 而且’作爲比較例試料9〜1 1製作下述的試料。 •比較例試料9:以下述的方法製成防眩性薄膜。 (防眩層用塗佈液的調製） 將季戊四醇三丙烯酸酯、季戊四醇四丙烯酸酯的混合 0 物（PET-30、曰本化藥（股）製）71.0g、聚合起始劑（ IRGACURE184、Ciba Specialty chemicals (股）製）3,Og 、氟系表面改質劑（FP-149) O.lg、矽烷偶合劑（KBM-5103、信越化學工業（股）製）ll.9g，添加於甲基異丁 基酮與甲基乙基酮的混合溶劑，用空氣分散進行60分鐘 攪拌完全地溶解溶質，塗佈此溶液後進行紫外線硬化所得 到的塗膜的折射率爲1.520。將平均粒徑3 ·5μιη的交聯聚 (苯乙烯）粒子（折射率1.600 ) 6.3g與平均粒徑3.5μιη Q 的交聯聚（丙烯基-苯乙烯）粒子（共聚組成比=50/50、 折射率1.536 ) 7.7g各自用Polytlon分散機以lOOOOrpm 分散20分鐘，添加30 %甲基異丁基酮作爲分散液’加入 甲基異丁基酮與甲基乙基酮，使甲基異丁基酮與甲基乙基 酮之比爲70對30，將固體成分濃度調整至45質量％後’ 用空氣分散進行10分鐘攪拌。 將前述混合液用孔徑30μιη的聚丙烯製過濾器過濾後 調製防眩層用塗佈液。 -38 - 200928449 (防眩層的塗設） 將80μιη的厚度的三乙醯基纖維素薄膜（TAC-TD80U 、富士照片薄膜（股）製）以卷筒形態捲取，藉由狹縫式 塗佈法塗佈防眩層用塗佈液，以3 0 °C乾燥1 5秒鐘、以 9〇 °C乾燥20秒後，進一步地在氮氣潔淨下使用160 W/cm 的空氣冷卻金屬鹵素燈（Eyegraphics (股）製），照射照 射能量強度90mJ/cm2的紫外線而使塗佈層硬化，形成厚 φ 度7·2μπι的防眩層，進行捲取。可藉由控制塗佈後的 2〜1 〇秒之間開始吹乾燥風的時間，而控制表面凹凸的狀 況，經形成的膜中之粒子密度爲1.2 1 g/m2。 •比較例試料10:特開平10-219136號明細書實施例 1所記載之防眩性薄膜，作成方法記載如下。 將聚酯丙烯酸酯90份（重量份，以下亦相同）與聚 胺基甲酸乙酯丙烯酸酯10份混合之紫外線硬化型樹脂 100份、與平均粒徑的二氧化矽1〇份、與有機黏 〇 土 3份、苯乙酮系聚合起始劑5份，介由甲苯125份進行 混合’得到由二氧化矽分散，其他成分溶解的分散液所成 的防眩處理劑’接著將前述的防眩處理劑介由照相凹版塗 工機於二乙酸醋薄膜（Konicaminolta takKC4UY、 Konicaminolta opt (股）製）的表面上展開爲厚度10μιη 的薄膜’以80 °C進行2秒鐘脫溶劑處理後照射紫外線後硬 化處理’得到防眩膜。 ♦比較例試料1 1 :將特許第3 5 0 7 7 1 9號明細書實施例 4所記載之防眩層，於同號實施例7的TAC基材上塗設於 39- 200928449 透明導電性層（DA-12 ( ΑΤΟ含有導電油墨：住友大阪 CEMENT (股）製））之上之防眩性薄膜，作成方法冑己# 如下。 將下述組成的防眩層用塗佈液，塗佈於三乙酸酷薄_ (Konicaminolta takKC4UY ' Konicaminolta opt (股）製 )上，以60°C乾燥1分鐘後，照射90mJ的UV光（紫外 線）使其半硬化，製成膜厚4μηι的防眩層。 〇 (防眩層用塗佈液） 季戊四醇三丙烯酸酯（ΡΕΤ30、日本化藥） 3.04 g 苯乙烯珠漿料（SX-130、綜硏化學） (粒徑1 . 3 4 μιη、珠含量4 0 % ) 1 g 10 %纖維素乙酸酯丙酸酯（乙酸乙酯稀釋） 3.64 g 〇 溶劑（甲苯、乙酸丁酯、異丁基醇）7.2 lg 光硬化起始劑（IRGACURE651、Ciba-Geigy) 0.11 g 塡充料/黏合劑比1 0/1 00 關於如此作法所製作的試料，進行下述的評估，結果 列示於表1〜3。 <評估方法> 《霧度値》 使用前述的方法。 -40- 200928449 《散射反射比率（散射反射率/積分反射率）》 使用 Konica Minolta Sensing (股）製的分光測色計 CM-2500d，以測量徑φ 8mm、觀察視野2。的條件，測量 SCI ((亦稱爲積分反射率、含正反射的反射率）及SCE (亦稱爲散射反射率、擴散反射率或不含正反射的反射率 ❹ 《防眩性》 以目視進行官能評估，判斷基準如下述。 A :螢光燈的輪廓模糊而完全不會注意到倒影。 B :螢光燈的輪廓僅稍微被確認出但不太會注意到。 C :螢光燈的輪廓被確認出但可容許。 D:螢光燈的輪廓相較之下清楚可見，在實用上成爲 問題。 Q E:螢光燈的輪廓清楚可見，因爲倒影而很難看到畫 像。 《對比（鮮明度）》 使用SUGA試驗機（股）製、影像清晰度測量器 ICM-IDP，測量於梳齒寬度〇_5mm之透過影像清晰度，以 透過影像清晰度作爲對比評估。 《對比（高精細鮮明度）》 -41 - 200928449 彩色濾光片上放置試料’藉由來自裏面（彩色濾光片 側）的透過光以光學顯微鏡觀察，目視評估畫像的輪廓的 清晰（clear)度，於第1圖中列示裝置的槪略。 於第1圖中，各數字各表示下述：1透過型光學顯 微鏡、2試料、3彩色濾光片、4光源。此外，第2圖 係表示使用第1圖的裝置經觀察的畫像。 判斷基準如下述。 0 A:彩色濾光片的輪廓看起來鮮明。 B:彩色濾光片的輪廓稍微模糊，但實畫像則爲不介 意的水準。 C:彩色濾光片的輪廓模糊，高精細的實畫像則鮮明 度劣化。 《眩光》 白畫像上貼上試料，於暗室内經由目視官能評估畫像 φ 的眩光，判斷基準如下述。 A:完全感覺不到眩光。 B :感覺到微弱眩光。 C :稍微感覺到眩光’但實用上無問題。 D :感覺到眩光，實用上成問題的水準。 E:感覺到顯著的眩光。 《鉛筆硬度》 依據JIS K 5 600 ’將試料以既知硬度的鉛筆用鉛筆硬 -42- 200928449 度試驗器（HA-301、CLEMENTS型刮痕硬度試驗器、 Tester產業（股））以1kg的荷重去畫，以目視評估是否 發生刮痕。 畫了 5次而刮痕之處若爲1次以下則合格’（例：用 5H的鉛筆，刮痕處爲2次以上，用4H的鉛筆，刮痕處爲 1次以下時，則爲4H)。 ❹The elastic modulus of the film at this time is 4000 (MPa) in the MD direction and 3 700 (MPa) in the TD direction. (Manufacturing Method of Transparent Film Substrate B) The transparent film substrate B was produced in the same manner as in the preparation of the transparent film substrate A except that the cerium oxide dispersion A was changed to the following prescription B. (cerium oxide dispersion B) AEROSILR972V (manufactured by AE AEROSIL (share)) 1 2 parts by mass (average particle size of primary particles 16 ηηη, apparent specific gravity 90 g / liter) SX8705 ( P ) -01 (JSR (share) 20 parts by mass - 37 - 200928449 (styrene-based crosslinked particles having an average particle diameter of 2.0 μηι) Ethanol 6 8 parts by mass and 'Comparative Examples 9 to 1 1 The following samples were prepared. • Comparative Example Sample 9: An anti-glare film was produced by the following method. (Preparation of coating liquid for anti-glare layer) 71.0 g of a mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (PET-30, manufactured by Sakamoto Chemical Co., Ltd.), polymerization initiator (IGGACURE 184, Ciba) Specialty chemicals (manufactured by the company) 3, Og, fluorine-based surface modifier (FP-149) O.lg, decane coupling agent (KBM-5103, Shin-Etsu Chemical Co., Ltd.) ll.9g, added to methyl A mixed solvent of isobutyl ketone and methyl ethyl ketone was dissolved in air for 60 minutes to completely dissolve the solute, and the refractive index of the coating film obtained by applying the solution and ultraviolet curing was 1.520. Crosslinked poly(acrylic-styrene) particles of crosslinked poly(styrene) particles (refractive index 1.600) with an average particle diameter of 3 · 5 μm and a particle size of 3.5 μιη Q (copolymer composition ratio = 50/50) , refractive index of 1.536) 7.7g each dispersed in a Polytlon disperser at 1000 rpm for 20 minutes, adding 30% methyl isobutyl ketone as a dispersion 'add methyl isobutyl ketone and methyl ethyl ketone to make methyl isobutyl The ratio of the ketone to methyl ethyl ketone was 70 to 30, and the solid content concentration was adjusted to 45 mass%, and the mixture was stirred for 10 minutes by air dispersion. The mixture was filtered through a polypropylene filter having a pore size of 30 μm, and a coating liquid for an antiglare layer was prepared. -38 - 200928449 (Application of anti-glare layer) A triacetonitrile-based cellulose film (TAC-TD80U, manufactured by Fuji Photo Film Co., Ltd.) having a thickness of 80 μm was taken up in a roll form by slit coating. The coating liquid for coating the anti-glare layer was coated with a coating liquid, dried at 30 ° C for 15 seconds, dried at 9 ° C for 20 seconds, and further cooled with a 160 W/cm air-cooled metal halide lamp under nitrogen purge. (Eyegraphics Co., Ltd.), the coating layer was cured by irradiation with ultraviolet rays having an irradiation energy intensity of 90 mJ/cm2 to form an anti-glare layer having a thickness of φ 7·2 μm, and was wound up. The surface unevenness can be controlled by controlling the time during which the drying wind is blown between 2 and 1 second of the coating, and the density of the particles in the formed film is 1.2 1 g/m2. • Comparative Example Sample 10: The anti-glare film described in Example 1 of JP-A-10-219136, the preparation method of which is described below. 100 parts of an ultraviolet curable resin in which 90 parts by weight (parts by weight or less) of a polyester acrylate is mixed with 10 parts of a polyurethane acrylate, and an iridium oxide having an average particle diameter of 1 part by weight, and organic sticking 3 parts of alumina and 5 parts of acetophenone-based polymerization initiator, and mixed with 125 parts of toluene to obtain an anti-glare treatment agent obtained by dispersing cerium oxide and dispersing other components. The glare treatment agent was developed into a film having a thickness of 10 μm on a surface of a diacetate film (Konicaminolta tak KC4UY, manufactured by Konicaminolta opt) by a gravure coater. The solvent was desolvated at 80 ° C for 2 seconds, and then irradiated with ultraviolet rays. Post-hardening treatment 'obtains an anti-glare film. ♦Comparative Example Sample 1 1 : The antiglare layer described in Example 4 of the PCT Patent No. 3,075,978 was applied to the TAC substrate of the same Example 7 on 39-200928449 transparent conductive layer. (DA-12 (ΑΤΟ contains conductive ink: Sumitomo Osaka CEMENT (share)))) The anti-glare film, the method of making it is as follows. The coating liquid for an anti-glare layer having the following composition was applied to a triacetic acid (Konicaminolta tak KC4UY 'Konicaminolta opt (manufactured)), and dried at 60 ° C for 1 minute, and then irradiated with 90 mJ of UV light (ultraviolet light). It was semi-hardened to form an anti-glare layer having a film thickness of 4 μm. 〇 (coating solution for anti-glare layer) pentaerythritol triacrylate (ΡΕΤ30, Nippon Kayman) 3.04 g Styrene bead slurry (SX-130, complex chemistry) (particle size 1. 3 4 μιη, bead content 4 0 % ) 1 g 10 % cellulose acetate propionate (diluted with ethyl acetate) 3.64 g hydrazine solvent (toluene, butyl acetate, isobutyl alcohol) 7.2 lg photohardening initiator (IRGACURE 651, Ciba-Geigy) 0.11 g 塡fill/binder ratio 1 0/1 00 For the samples prepared in this way, the following evaluations were carried out, and the results are shown in Tables 1 to 3. <Evaluation Method> "Haze" The above method was used. -40- 200928449 "Scattering reflectance ratio (scattering reflectance/integral reflectance)" A spectrophotometer CM-2500d manufactured by Konica Minolta Sensing Co., Ltd. was used to measure a diameter of φ 8 mm and an observation field of view 2. Conditions, measure SCI (also known as integral reflectivity, reflectivity with specular reflection) and SCE (also known as diffuse reflectance, diffuse reflectance or reflectance without specular reflection ❹ "anti-glare" to visualize Perform a functional evaluation and judge the reference as follows: A: The outline of the fluorescent lamp is blurred and the reflection is not noticed at all. B: The outline of the fluorescent lamp is only slightly confirmed but not noticed. C: Fluorescent lamp The contour is confirmed but tolerable. D: The outline of the fluorescent lamp is clearly visible and practically problematic. QE: The outline of the fluorescent lamp is clearly visible, and it is difficult to see the portrait because of the reflection. Degree)" Using the SUGA test machine (stock) system, image sharpness measuring device ICM-IDP, measured the image clarity of the comb width 〇 _5mm, through the image clarity as a comparison evaluation. "Contrast (high-definition vivid Degree) -41 - 200928449 Place the sample on the color filter 'Evaluate the outline of the image by visual observation through the transmitted light from the inside (color filter side), in Figure 1. Middle column In the first drawing, each numeral indicates the following: 1 transmission optical microscope, 2 sample, 3 color filter, and 4 light source. Fig. 2 is a view showing the use of the apparatus of Fig. 1 Observed image. The judgment criteria are as follows: 0 A: The outline of the color filter looks sharp. B: The outline of the color filter is slightly blurred, but the real image is a level that does not mind. C: Color filter The outline is blurred, and the high-definition real image is degraded. "Glare" The sample is attached to the white image, and the glare of the image φ is evaluated by visual function in the dark room. The judgment criteria are as follows: A: No glare is felt at all. Feel faint glare. C: Slightly felt glare' but practically no problem. D: Feeling glare, practically problematic. E: Feeling significant glare. Pencil Hardness according to JIS K 5 600 ' The sample was drawn with a pencil hardness-42-200928449 degree tester (HA-301, CLEMENTS type scratch hardness tester, Tester Industry Co., Ltd.) at a load of 1 kg to visually evaluate whether or not scratches occurred. painting If the scratch is 1 or less, it will pass. (Example: use a 5H pencil, the scratch is 2 or more, and the 4H pencil is used. If the scratch is 1 or less, it is 4H). ❹

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I m im > m ^Πΐa 起溫Ife担 -46- 200928449 已知本發明係防眩性、鮮明度優異且作爲硬塗層亦具 有優異的耐傷性。 〔產業上的可利用性〕 依據本發明可提供畫面的眩光受到抑制、具有優良的 對比之生產性優異的防眩性薄膜、防眩性防反射薄膜、偏 光板及圖像顯示裝置。 Ο 【圖式簡單說明】 〔圖1〕係測量高精細鮮明度之裝置的槪略圖。 〔圖2〕以高精細鮮明度測量裝置所觀察的試料照片 之例。 【主要元件符號說明】 1 :透過型光學顯微鏡 ❹ 2 :試料 3 :彩色濾光片 4 :光源 • 47-I m im > m ^ Πΐ a heating temperature Ife -46- 200928449 It is known that the present invention is excellent in anti-glare property and sharpness, and also has excellent scratch resistance as a hard coat layer. [Industrial Applicability] According to the present invention, it is possible to provide an antiglare film, an antiglare antireflection film, a polarizing plate, and an image display device which are excellent in glare of a screen and excellent in productivity. Ο [Simple description of the diagram] [Fig. 1] is a sketch of a device for measuring high-definition sharpness. [Fig. 2] An example of a sample photograph observed by a high-definition sharpness measuring device. [Main component symbol description] 1 : Transmissive optical microscope ❹ 2 : Sample 3 : Color filter 4 : Light source • 47-

Claims (1)

200928449 十、申請專利範圍 1·—種光學薄膜，其係於透明薄膜基材上I 之光學薄膜，其特徵係表面霧度値爲15 %以下， 率中散射反射率所佔有的比例爲3 0〜7 0 %。 2 .如申請專利範圍第1項之光學薄膜，其cj 薄膜中，該防眩層含有平均粒徑1.5〜6 μηι之含_ 樹脂粒子。 U 3.如申請專利範圍第2項之光學薄膜，其cj 薄膜中，該防眩層的膜厚大於前述含氟的丙烯S 的平均粒徑。 4.如申請專利範圍第1~3項中任一項所記耄 膜，其中前述光學薄膜係前述防眩層中含有 0.01~1.0μιη 的粒子。 5 . —種偏光板，其特徵係具有申請專利範圍 中任一項之光學薄膜。 Q 6.—種圖像顯示裝置，其特徵係使用申請· 1 ~4項中任一項之光學薄膜。 -有防眩層 積分反射 |前述光學 ，的丙烯酸 '前述光學 :樹脂粒子 :之光學薄 平均粒徑 第1〜4項 利範圍第 -48- 200928449 無 明 說 單 無簡 .•號 為符 圖件 表元 代之 定圖 :指表 圖案代 表本本 代} } 定一二 指 xfv > 七 Ο 八、本案若有化學式時，請揭示最能顯示發明特徵的化學 式：無 -4-200928449 X. Patent application scope 1. An optical film which is an optical film of I on a transparent film substrate, characterized in that the surface haze 値 is 15% or less, and the ratio of the scattering reflectance in the rate is 30. ~70%. 2. The optical film of claim 1, wherein the anti-glare layer contains _ resin particles having an average particle diameter of 1.5 to 6 μηι in the cj film. U 3. The optical film of claim 2, wherein the anti-glare layer has a film thickness greater than an average particle diameter of the fluorine-containing propylene S in the cj film. 4. The ruthenium film according to any one of claims 1 to 3, wherein the optical film contains 0.01 to 1.0 μm of particles in the antiglare layer. A polarizing plate characterized by having an optical film according to any one of the claims. Q 6. An image display device characterized in that the optical film of any one of the applications 1 to 4 is used. -There is an integral reflection of the anti-glare layer|The aforementioned optics, the acrylic 'the aforementioned optics: the resin particles: the optical thin average particle size of the first to the fourth item of the range of the first -48-200928449 ignoring the single no simple.• number is the symbol The table is represented by the map: the table pattern represents the present generation} } The first two fingers xfv > Seven Ο VIII. If there is a chemical formula in this case, please reveal the chemical formula that best shows the characteristics of the invention: -4-