[實施發明之形態] [0016] 本發明之實施形態為提高書寫感的薄膜1，如圖1（a）所示，其係包含基材薄膜20、與提高書寫感層10之觸控式面板用之提高書寫感的薄膜1，其特徵為將霧度值設為10~40%之範圍內之值，同時將提高書寫感層10中之算術平均粗度Ra設為0.15~1μm之範圍內之值，且如圖2所示，一邊將具備筆頭52直徑為0.5mm之硬毛氈筆芯之觸控筆50之筆頭52，以觸控筆50之軸心與提高書寫感的薄膜1的薄膜面成垂直之狀態，並於荷重3.92N之加壓條件下，使其接觸提高書寫感層10之表面， 一邊使觸控筆50往與提高書寫感的薄膜1之薄膜面平行的任意一方向D，以速度100mm/分鐘移動時，將測定筆頭阻力時之筆頭滑動係數設為0.1~0.5之範圍內之值。 以下，參照適當的圖式進行具體說明。 [0017] 1.提高書寫感層 （1）提高書寫感層形成用組成物 本發明之提高書寫感的薄膜中的提高書寫感層為由至少包含活性能量線硬化性樹脂、與填料之提高書寫感層形成用組成物之硬化物而成較佳。 以下，針對提高書寫感層形成用組成物中所包含的各成分進行說明。 [0018] （1）-1 （A）成分：活性能量線硬化性樹脂 作為提高書寫感層形成用組成物中所包含之（A）成分之活性能量線硬化性樹脂的種類，並無特別限制，能夠自以往公知者中來選擇，有舉出能量線硬化性單體、寡聚物、樹脂或此等之混合物。 更具體來說，使用多官能性（甲基）丙烯酸系單體或（甲基）丙烯酸酯系預聚物較佳，以使所得之提高書寫感層的耐擦傷性更優異之觀點來看，使用多官能性（甲基）丙烯酸酯系單體再較佳。 [0019] 且，作為多官能性（甲基）丙烯酸系單體，為分子內具有2個以上（甲基）丙烯醯基之2官能以上之多官能性（甲基）丙烯酸系單體較佳，以使耐擦傷性更優異之觀點來看，為3官能以上再較佳，為5官能以上特別佳。另一方面，以抑制提高書寫感的薄膜的卷曲之觀點來看，作為多官能性（甲基）丙烯酸系單體為20官能以下較佳，為12官能以下再較佳，為9官能以下特別佳。 且，多官能性（甲基）丙烯酸系單體以與其他成分之相溶性之觀點來看，為分子量1000以下較佳。 [0020] 且，作為多官能性（甲基）丙烯酸系單體之具體例，有舉例如1,4-丁二醇二（甲基）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、聚乙二醇二（甲基）丙烯酸酯、羥基叔戊酸新戊二醇二（甲基）丙烯酸酯、二環戊基二（甲基）丙烯酸酯、己內酯改質二環戊烯基二（甲基）丙烯酸酯、氧化乙烯改質磷酸二（甲基）丙烯酸酯、烯丙化環己基二（甲基）丙烯酸酯、異氰酸酯二（甲基）丙烯酸酯、三羥甲基丙烷三（甲基）丙烯酸酯、二季戊四醇三（甲基）丙烯酸酯、丙酸改質二季戊四醇三（甲基）丙烯酸酯、季戊四醇三（甲基）丙烯酸酯、氧化丙烯改質三羥甲基丙烷三（甲基）丙烯酸酯、參（丙烯醯基氧基乙基）異氰酸酯、丙酸改質二季戊四醇五（甲基）丙烯酸酯、二季戊四醇六（甲基）丙烯酸酯、己內酯改質二季戊四醇六（甲基）丙烯酸酯等。 且，此等亦可單獨使用1種，亦可組合2種以上來使用。 [0021] 且，作為（甲基）丙烯酸酯系預聚物，有舉例如聚酯丙烯酸酯系、環氧丙烯酸酯系、胺基甲酸酯丙烯酸酯系、多元醇丙烯酸酯系等。 於此，作為聚酯丙烯酸酯系預聚物，能夠藉由例如將多價羧酸與多元醇之縮合所得之兩末端具有羥基之聚酯寡聚物的羥基以（甲基）丙烯酸酸酯化、或將多價羧酸加成氧化烷烴所得之寡聚物之末端的羥基以（甲基）丙烯酸酸酯化所得。 且，環氧丙烯酸酯系預聚物能夠藉由例如使比較低分子量之雙酚型環氧樹脂或酚醛型環氧樹脂之環氧乙烷環與（甲基）丙烯酸酸反應並酯化所得。 且，胺基甲酸酯丙烯酸酯系預聚物能夠藉由例如聚醚多元醇或聚酯多元醇與聚異氰酸酯之反應所得。 進而，多元醇丙烯酸酯系預聚物能夠藉由將聚醚多元醇的羥基以（甲基）丙烯酸酸酯化所得。 且，此等之預聚物亦可單獨使用1種，亦可組合2種以上來使用，且，亦可併用上述多官能性（甲基）丙烯酸酯系單體。 [0022] （1）-2 （B）成分：填料 （i）種類 作為提高書寫感層形成用組成物中所包含之（B）成分之填料的種類，亦可為無機粒子，亦可為有機粒子，但以使所得之提高書寫感層的硬度提升之觀點來看，為無機粒子再較佳。 作為相關之無機粒子，有舉例如矽、二氧化鈦、二氧化鋯、氧化錫、氧化銦、氧化鎘、氧化銻等而成之粒子。 其中，使用矽粒子較佳。 此理由是因為若為矽粒子，則Cv值大得很充分，藉此提高書寫感層表面之凹凸形狀會變得更複雜，能夠再更有效地再現以鉛筆筆記於紙時的書寫感。 且，是因為即使算術平均粒徑較小，也容易得到書寫感特性，對於眩光之產生也能夠進一步有效地控制。 且，此等亦可單獨使用1種，亦可組合2種以上來使用。 [0023] （ii）形狀 且，將填料之形狀設為不規則形較佳。 此理由是因為使用不規則形之填料時，相較於使用例如球狀等之規則形的填料，不僅Cv值變得較大，提高書寫感層表面之突起會對應填料之不規則形，容易得到書寫感特性。 且，本發明中「不規則形」意指非如球狀或橢圓形狀之規則的形狀，而是具有不規則之多數角部或面之形狀。 [0024] （iii）算術平均粒徑 且，將填料之算術平均粒徑設為0.5~3μm之範圍內之值較佳。 此理由是因為相關之算術平均粒徑若為未滿0.5μm之值，則提高書寫感層表面變得較平滑，筆頭滑動係數變得較低，有時較難有效地再現以鉛筆筆記於紙時的書寫感。另一方面是因為相關之算術平均粒徑若為超過3μm之值，則提高書寫感層表面會成為平緩的凹凸，作為算術平均粗度Ra會顯示較小之值，故不僅較難有效地再現以鉛筆筆記於紙時的書寫感，有時也會容易產生眩光。 因此，將填料之算術平均粒徑的下限值設為0.8μm以上之值再較佳，設為1μm以上之值更較佳。 且，將填料之算術平均粒徑的上限值設為2.5μm以下之值再較佳，設為2μm以下之值更較佳。 [0025] （iv）Cv值 且，將填料之Cv值設為5~200%之範圍內之值較佳。 此理由是因為相關之Cv值若為未滿5%之值，則提高書寫感層表面之凹凸形狀變得較單調，有時較難得到充分的書寫感特性。另一方面是因為相關之Cv值若為超過200%之值，不賦予書寫感之粒子會增加，粒子必要量變多，有時容易產生眩光。 因此，將填料之Cv值的下限值設為20%以上之值再較佳，設為40%以上之值更較佳，設為60%以上之值特別佳。 且，填料之Cv值的上限值設為150%以下之值再較佳，設為100%以下之值更較佳。 [0026] （v）摻混量 且，將填料之摻混量相對於作為（A）成分之活性能量線硬化性樹脂100重量分，設為5~30重量分之範圍內之值較佳。 此理由是因為相關之摻混量若為未滿5重量分之值，則較難在提高書寫感層之表面形成微細凹凸，算術平均粗度以及霧度值變得較小，有時較難有效地再現以鉛筆筆記於紙時的書寫感。另一方面是因為相關之摻混量若為超過30重量分之值，容易產生眩光，霧度值會變得過大，有時顯示器之顯示畫像之可視性會過度降低。 因此，將填料之摻混量的下限值設為8重量分以上之值再較佳，設為10重量分以上之值更較佳。 且，將填料之摻混量的上限值設為20重量分以下之值再較佳，設為15重量分以下之值較佳。 [0027] （1）-3 （C）成分：均染劑 且，提高書寫感層形成用組成物包含作為（C）成分之均染劑較佳。 此理由是因為藉由包含均染劑，能夠有效地抑制在所得之提高書寫感層的表面上產生紋路狀之缺點或不均勻等，能夠將厚度控制均勻。 [0028] 且，作為均染劑之種類，有舉例如矽氧烷系均染劑、氟系均染劑、丙烯酸系均染劑、乙烯系均染劑等，其中，以均染性或與其他成分之相溶性之觀點來看，為矽氧烷系均染劑以及氟系均染劑較佳。 且，均染劑亦可單獨使用1種，亦可組合2種以上來使用。 [0029] 且，作為矽氧烷系均染劑，為聚二甲基矽氧烷或改質聚二甲基矽氧烷較佳，為聚二甲基矽氧烷特別佳。 且，作為氟系均染劑，為在主鏈或側鏈具有全氟烷基或氟化烯基之化合物較佳，作為市售品，有舉出BYK Japan（股）製之BYK-340、Neos（股）製之Futagent 650A、DIC（股）製之Megaface RS-75、大阪有機化學工業（股）製之V-8FM等。 [0030] 且，作為均染劑之摻混量，相對於作為（A）成分之活性能量線硬化性樹脂100重量分，通常為0.001~10重量分之範圍內之值較佳，為0.005~5重量分之範圍內之值再較佳，為0.01~3重量分之範圍內之值更較佳。 [0031] （1）-4 （D）成分：光聚合起始劑 且，提高書寫感層形成用組成物包含作為（D）成分之光聚合起始劑較佳。 作為相關之光聚合起始劑之種類，有舉例如安息香、安息香甲基醚、安息香乙基醚、安息香異丙基醚、安息香-n-丁基醚、安息香異丁基醚、苯乙酮、二甲基胺基苯乙酮、2,2-二甲氧基-2-苯基苯乙酮、2,2-二乙氧基-2-苯基苯乙酮、2-羥基-2-甲基-1-苯基丙烷-1-酮、1-羥基環己基苯基酮、2-甲基-1-[4-（甲基硫基）苯基]-2-嗎啉基-丙烷-1-酮、4-（2-羥基乙氧基）苯基-2（羥基-2-丙基）酮、二苯基酮、p-苯基二苯基酮、4,4’-二乙基胺基二苯基酮、二氯二苯基酮、2-甲基蒽醌、2-乙基蒽醌、2-第三丁基蒽醌、2-胺基蒽醌、2-甲基硫基黃圜酮、2-乙基硫基黃圜酮、2-氯硫基黃圜酮、2,4-二甲基硫基黃圜酮、2,4-二乙基硫基黃圜酮、苄基二甲基縮酮、苯乙酮二甲基縮酮、p-二甲基胺基安息香酸酯等。 且，此等亦可單獨使用1種，亦可組合2種以上來使用。 且，作為光聚合起始劑之摻混量，相對於作為（A）成分之活性能量線硬化性樹脂100重量分，通常為0.2~10重量分之範圍內之值較佳。 [0032] （1）-5 提高書寫感層形成用組成物之調製 且，提高書寫感層形成用組成物能夠因應必要，在適當的溶媒中添加上述（A）~（D）成分等，並藉由時其溶解或分散來調製。 此時，作為（A）~（D）成分以外之成分，能夠添加例如抗靜電劑、界面活性劑、抗氧化劑、紫外線吸收劑、矽烷系偶合劑、光安定劑、消泡劑等。 且，作為使用之溶媒，有舉例如甲醇、乙醇、異丙醇、n-丁醇、異丁醇、辛醇等之醇類；丙酮、甲基乙基酮、甲基異丁基酮、環己酮等之酮類；乙酸乙酯、乙酸丁酯、乳酸乙酯、γ-丁內酯等之酯類；乙二醇單甲基醚（甲基賽路蘇）、乙二醇單乙基醚（乙基賽路蘇）、二乙二醇單丁基醚（丁基賽路蘇）、丙二醇單甲基醚等之醚類；苯、甲苯、二甲苯等之芳香族烴類；二甲基甲醯胺、二甲基乙醯胺、N-甲基一氮五圜酮等之醯胺類等。 [0033] （2）厚度 且，將提高書寫感層之厚度設為0.1~50μm之範圍內之值較佳。 此理由是因為相關厚度若為未滿0.1μm之值，則有時較難確保充分的書寫感特性。另一方面是因為相關之厚度若為超過50μm之值，有時容易在提高書寫感的薄膜上產生卷曲。 因此，將提高書寫感層之厚度的下限值設為1μm以上之值再較佳，設為3μm以上之值更較佳。 且，將提高書寫感層之厚度的上限值設為20μm以下之值再較佳，設為10μm以下之值更較佳。 [0034] 2.基材薄膜 作為基材薄膜之種類，雖然無特別限制，但有舉例如聚乙烯對苯二甲酸酯、聚丁烯對苯二甲酸酯、聚乙烯鄰苯二甲酸酯等之聚酯薄膜、聚乙烯薄膜、聚丙烯薄膜等之聚烯烴薄膜、賽珞凡、二乙酸纖維素薄膜、三乙酸纖維素薄膜、乙酸纖維素丁酯薄膜、聚氯化乙烯薄膜、聚氯化亞乙烯薄膜、聚乙烯醇薄膜、乙烯-乙酸乙烯共聚合物薄膜、聚苯乙烯薄膜、聚碳酸酯薄膜、聚甲基戊烯薄膜、聚碸薄膜、聚醚醚酮薄膜、聚醚碸薄膜、聚醚亞胺薄膜、氟樹脂薄膜、聚醯胺薄膜、丙烯酸樹脂薄膜、聚胺基甲酸酯樹脂薄膜、降冰片烯系聚合物薄膜、環狀烯烴系聚合物薄膜、環狀共役二烯系聚合物薄膜、乙烯脂環式烴聚合物薄膜等之塑膠薄膜或此等之積層薄膜。 其中，以機械性強度等之面來看，為聚乙烯對苯二甲酸酯薄膜、聚碳酸酯薄膜、降冰片烯系聚合物薄膜等較佳。 [0035] 且，基材薄膜中，以提升與設置在其表面之層之密著性之目的，於單面或兩面藉由底漆處理、氧化法、凹凸化法等施予表面處理較佳。 且，基材薄膜之厚度設為15~300μm之範圍內之值較佳，設為30~200μm之範圍內之值再較佳。 [0036] 3.黏著劑層 且，如圖1（b）所示，基材薄膜20中與提高書寫感層10所位於之側相反側之面具有黏著劑層30較佳。 作為構成相關黏著劑層之黏著劑，能夠使用例如丙烯酸系黏著劑、橡膠系黏著劑、矽氧烷系黏著劑等公知之黏著劑。 [0037] 4.特性 （1）算術平均粗度Ra 且，本發明中，將提高書寫感的薄膜之提高書寫感層中的算術平均粗度Ra設為0.15~1μm之範圍內之值。 此理由是因為藉由將算術平均粗度Ra設為相關之範圍，會與後述霧度值以及筆頭滑動係數接近，能安定地將筆記振動控制在特定之範圍，有效地再現以鉛筆筆記於紙時的書寫感，且關於眩光之產生也能夠有效地抑制。 亦即，相關之算術平均粗度Ra若為未滿0.15μm之值，由於與人之筆壓的關係，不會存在使筆頭充分振動之程度的突起。其結果，較難將筆記振動控制在特定範圍，較難有效地再現以鉛筆筆記於紙時的書寫感。且，即使形成平緩的凹凸，算術平均粗度Ra會未滿0.15μm，但此時，雖然會得到某種程度的書寫感特性，但會產生眩光。另一方面，相關之算術平均粗度Ra若為超過1μm之值，則由於與人之筆壓的關係，會存在過大的突起。其結果，較難將筆記振動控制在特定之範圍，有時較難有效地再現以鉛筆筆記於紙時的書寫感，並抑制眩光的產生。 因此，將提高書寫感的薄膜之提高書寫感層中之算術平均粗度Ra的下限值設為0.2μm以上之值再較佳，設為0.22μm以上之值更較佳。 且，將提高書寫感的薄膜之提高書寫感層中的算術平均粗度Ra之上限值設為0.4μm以下之值再較佳，設為0.3μm以下之值更較佳，設為0.28μm以下之值特別佳。 [0038] （2）霧度值 且，本發明中，將提高書寫感的薄膜之霧度值設為10~40%之範圍內之值。 此理由是相關之霧度值若為未滿10%之值，則提高書寫感層表面之突起密度會變得過小。其結果，較難將筆記振動控制在特定之範圍，有時較難再現以鉛筆筆記於紙時的書寫感。另一方面，相關之霧度值若為超過40%之值，則容易產生眩光，有時顯示器之顯示畫像的可視性容易過度降低。 因此，藉由將提高書寫感的薄膜之霧度值的下限值設為15%以上之值再較佳，設為20%以上之值更較佳。 且，將提高書寫感的薄膜之霧度值之上限值設為35%以下之值再較佳，設為30%以下之值更較佳。 [0039] 於此，說明算術平均粗度Ra與霧度值之互補關係。 首先，算術平均粗度Ra會因為較大突起的存在，值有左右之傾向。亦即，藉由算術平均粗度Ra，能夠把握賦予書寫感特性之高度的突起是否存在。 然而，僅將算術平均粗度Ra作為指標時，無法判斷突起密度之大小，故較難確實地得到書寫感特性。 相對於此，霧度值為與突起密度有相關聯之數值，突起密度越大霧度值越大。 因此，藉由將霧度值規定在特定值以上，能夠間接地規定賦予書寫感特性之突起密度。 因此，僅將霧度值作為指標時，無法判斷突起之高度，較難確實地得到書寫感特性。 由於以上之理由，藉由規定算術平均粗度Ra以及霧度值兩者，才能夠分別規定得到優異書寫感特性所必要的突起之高度以及密度。 [0040] （3）書寫感特性 （3）-1 筆頭滑動係數 且，本發明之提高書寫感的薄膜，其特徵為如圖2所示，一邊將具備筆頭52直徑為0.5mm之硬毛氈筆芯之觸控筆50之筆頭52，以觸控筆50之軸心與提高書寫感的薄膜1的薄膜面成垂直之狀態，並於荷重3.92N（400gf）之加壓條件下，使其接觸提高書寫感的薄膜1中的提高書寫感層10之表面，一邊使觸控筆50往與提高書寫感的薄膜1之薄膜面平行的任意一方向以速度100mm/分鐘移動，將測定筆頭阻力時之筆頭滑動係數設為0.1~0.5之範圍內之值。 此理由是因為相關之筆頭滑動係數若為未滿0.1之值，則筆頭容易變得過滑，筆頭之控制性變得容易降低，有時較難再現以鉛筆筆記於紙時的書寫感。另一方面，相關之筆頭滑動係數若為超過0.5之值，則筆頭容易變得過度卡住，相反地筆頭之控制性容易變得降低，難以再現以鉛筆筆記於紙時的書寫感，有時容易產生眩光。 因此，將筆頭滑動係數之下限值設為0.17以上之值再較佳，設為0.19以上之值更較佳。 且，將筆頭滑動係數之上限值設為0.3以下之值再較佳，設為0.25以下之值更較佳。 [0041] 且，本發明中，「筆頭阻力」意指以上述條件使觸控筆移動時，筆頭所受之阻力。 且，本發明中，「筆頭滑動係數」意指將「筆頭滑動阻力」之最大值與最小值之平均值除以荷重（3.92N）之值。 且，本發明中，「筆頭滑動阻力」意指在移動距離（mm）-筆頭阻力（mN）圖表中，筆頭開始動時之筆頭初動阻力之影響較收斂，筆頭進入安定滑動狀態時的筆頭阻力。 因此，為例如圖3（a）所示之實施例2之提高書寫感的薄膜中之移動距離（mm）-筆頭阻力（mN）圖表時，筆頭初動阻力之影響小到為能無視之程度，因此移動距離30mm以上之範圍中的筆頭阻力會成為筆頭滑動阻力。 且，特定筆頭滑動阻力時的移動距離之上限值並無特別限定，但考慮到筆頭之摩擦熱等所造成值之值的變動，以往為離筆頭初動阻力之影響較收斂之點50mm之位置較佳。 [0042] 且，如上述，藉由算術平均粗度Ra與霧度值，能夠規定適合於書寫感特性之表面形狀，但實際之書寫感特性也必須要考慮表面材質等帶來的影響。 例如為滑定性較高之材質時與較難滑動之材質時，即使提高書寫感層之表面形狀相同，書寫感特性也有很大的差異。 補強此點的是筆頭滑動係數。藉由該筆頭滑動係數，能夠把握筆頭上總計之相關力。 因此，本發明是將提高書寫感層以其表面形狀、與起因於材質之特性的兩層面來限定。 [0043] 於此，針對筆頭阻力之測定方法，舉出一例更具體地來說明。 亦即，首先，如圖2所示，將作為測定對象之提高書寫感的薄膜1以提高書寫感層10為上側之狀態，固定在玻璃板40之上面。 接著，將測定專用轉向架70跨過提高書寫感的薄膜1來配置後，將觸控筆50插入設置在測定專用轉向架70且往直立方向延伸之貫通孔72。 接著，對觸控筆50固定重物60，以荷重3.92N之壓力條件下，使筆頭52與提高書寫感層10之表面接觸。 接著，使用例如島津製作所（股）製、AUTOGRAPH AG-IS 500N等之檢測器100，一邊將固定於測定專用轉向架70之拉伸線90，介由滑車80，往與薄膜面平行之方向D並以100mm/分鐘之速度拉伸，一邊測定筆頭阻力。 且，藉由將壓力條件設定在高於荷重3.92N這種一般筆記時的壓力條件，筆頭52對提高書寫感層10之按壓力會變強，故對提高書寫感層10之凹凸形狀能夠反應較高感度，另外，也能夠檢測出提高書寫感層10之凹凸形狀的些微差異。 [0044] （3）-2 筆頭滑動阻力 且，以與規定上述筆頭滑動係數相同之理由來看，將筆頭滑動阻力之平均值設為500~1000mN之範圍內之值較佳。 因此，將筆頭滑動阻力之平均值之下限值設為520mN以上之值再較佳，設為560mN以上之值更較佳。 且，將筆頭滑動阻力之平均值之上限值設為800mN以下之值再較佳，設為700mN以下之值更較佳。 且，筆頭滑動阻力之平均值意指筆頭滑動阻力為安定之特定移動距離區間中，取得存在於該區間之所有筆頭滑動阻力之極大值與極小值的總和，除以此等個數之值。 [0045] 且，將筆頭滑動阻力之最大值與最小值之差設為100~300mN之範圍內之值較佳。 此理由是因為相關之差之值若為未滿100mN之值，則筆記振動會變得小，有時較難再現以鉛筆筆記於紙時的書寫感。另一方面。若相關之差之值為超過300mN之值，則筆記振動會變得過大，相反地有時較難再現以鉛筆筆記於紙時的書寫感。 因此，將筆頭滑動阻力之最大值與最小值之差的下限值設為110mN以上之值再較佳，設為120mN以上之值更較佳。 且，將筆頭滑動阻力之最大值與最小值之差的上限值設為200mN以下之值再較佳，設為150mN以下之值更較佳。 [0046] （3）-3 頻率區域之特性 （i）頻率1~2Hz之範圍中的振幅 且，將如上述圖3（a）所示之移動距離（mm）-筆頭阻力（mN）圖表，使用例如Excel（登錄商標），進行傅氏轉換（Fourier transform）所得之如圖3（b）所示之頻率（Hz）-振幅（-）圖表中，將頻率1~2Hz之範圍內的振幅之平均值設為0.8~3之範圍內之值較佳。 此理由是因為本發明之發明者們在經驗上發現，將筆記振動作為具有各種頻率之複數振動重疊來取得時，特別是作為「書寫感」人體所意識到的特徵性振動為頻率1~2Hz之範圍之振動。 因此，將頻率1~2Hz之範圍中的振幅之平均值接近以鉛筆筆記於紙上之情況，能夠有效地再現以鉛筆筆記於紙上時的書寫感。 因此，將頻率1~2Hz之範圍中的振幅之平均值的下限值設為1以上之值再較佳，設為1.1以上之值更較佳。 且，將頻率1~2Hz之範圍中的振幅之平均值的上限值設為2以下之值再較佳，設為1.6以下之值更較佳。 且，振幅之平均值意指對象頻率區間中，取得存在於該區間之所有振幅之極大值與極小值之總和，除以此等個數之值。 [0047] 且，將頻率1~2Hz之範圍中的振幅之最大值設為2~10之範圍內之值較佳。 此理由是因為相關之最大值若為未滿2之值，則會成為比以鉛筆筆記於紙上時的該差之值還更小之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。另一方面，相關之最大值若為超過10之值，則會成為比以鉛筆筆記於紙上時的該最大值還更大之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。 因此，將頻率1~2Hz之範圍中的振幅之最大值的下限值設為2.5以上之值再較佳，設為2.7以上之值更較佳，設為2.8以上之值特別佳。 且，將頻率1~2Hz之範圍中的振幅之最大值的上限值設為9以下之值再較佳，設為8以下之值更較佳。 [0048] 且，以更有效地再現以鉛筆筆記於紙時的書寫感之觀點來看，頻率1~2Hz之範圍具有至少1個振幅1.5以上之波峰較佳，將相關之波峰數的下限值設為2個以上之值再較佳，設為4個以上之值更較佳。 且，將相關波峰數之上限值設為9個以下之值較佳，設為8個以下之值更較佳。 [0049] （ii）頻率2~5Hz之範圍中的振幅 且，頻率2~5Hz之範圍不具有振幅5以上之波峰較佳。 此理由是因為相關頻率範圍中若具有振幅5以上之波峰，則容易產生筆頭卡住感，或感覺到與如書寫感之纖細的振動相異之大幅振動。 [0050] 且，將頻率2~5Hz之範圍中的振幅之平均值設為0.01~1.5之範圍內之值較佳。 此理由是因為相關平均值若為未滿0.01之值，則會成為比以鉛筆筆記於紙上時的該平均值還更小之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。且，是因為頻率1~2Hz之範圍中的振幅之控制較困難，有時較難有效地再現以鉛筆筆記於紙時的書寫感。另一方面，是因為相關之平均值若為超過1.5之值，則會成為比以鉛筆筆記於紙上時的該平均值還更大之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。且，是因為頻率1~2Hz之範圍中的振幅之控制較困難，有時較難有效地再現以鉛筆筆記於紙時的書寫感。 因此，將頻率2~5Hz之範圍中的振幅之平均值的下限值設為0.1以上之值再較佳，設為0.2以上之值更較佳，為0.3以上之值特別佳。 且，將頻率2~5Hz之範圍中的振幅之平均值的上限值設為1.2以下之值再較佳，設為0.8以下之值更較佳，設為0.6以下之值特別佳。 [0051] 且，將頻率2~5Hz之範圍中的振幅之最大值設為0.1~5之範圍內之值較佳。 此理由是因為相關之最大值若為未滿0.1之值，則會成為比以鉛筆筆記於紙上時的該最大值還更小之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。且，是因為頻率1~2Hz之範圍中的振幅之控制較困難，有時較難有效地再現以鉛筆筆記於紙時的書寫感。另一方面是因為，相關之最大值若為超過5之值，則會成為比以鉛筆筆記於紙上時的該最大值還更大之值，有時較難有效地再現以鉛筆筆記於紙時的書寫感。且，是因為頻率1~2Hz之範圍中的振幅之控制較困難，有時較難有效地再現以鉛筆筆記於紙時的書寫感。 因此，將頻率2~5Hz之範圍中的振幅之最大值的下限值設為0.6以上之值再較佳，設為0.8以上之值更較佳，設為1以上之值特別佳。 且，將頻率2~5Hz之範圍中的振幅之最大值的上限值設為4以下之值再較佳，設為3以下之值更較佳，設為2.4以下之值特別佳。 [0052] 5.提高書寫感的薄膜之製造方法 作為本發明之提高書寫感的薄膜之製造方法，首先於基材薄膜之表面上使用以往公知之方法，例如棒塗法、刀塗法、滾輪塗布法、槳葉塗布法、壓鑄塗布法、凹版塗布法等來塗布提高書寫感層形成用組成物，形成塗膜。 接著，乾燥塗膜後，照射活性能量線使塗膜硬化，藉由將塗膜作為提高書寫感層，得到提高書寫感的薄膜。 [0053] 且，作為塗膜之硬化，對塗膜照射紫外線、電子線等之活性能量線較佳。 紫外線照射能夠以高壓水銀燈、紫外線H燈、氙氣燈等來進行，其照射量設為照度50~1000 mW/cm2
、光量50 ~1000 mJ/cm2
左右較佳。 另一方面，電子線照射能夠以電子線加速器等來進行，其照射量設為10~1000krad左右較佳。 [0054] 且，藉由將上述實施形態之提高書寫感的薄膜適用於觸控式面板之表面，能夠構成例如圖4所示之書寫感特性優異之附有觸控式面板之顯示裝置。 亦即，圖4為表示適用本發明之提高書寫感的薄膜1’之附有觸控式面板之顯示裝置25的一例之剖面詳細圖，附有觸控式面板之顯示裝置25具有以下所示之構造。 且，附有觸控式面板之顯示裝置25中，提高書寫感層10成為最上面。 由背光單元14與偏光板13與黏著劑層30c與液晶顯示元件（LCD）12而成之LCD模組21在凹凸順從性積層構件11之下面以接著液晶顯示元件12之方式來貼著。 另一方面，由附有透明導電膜9之位相差薄膜2而成之下部基板18在凹凸順從性積層構件11之上面以接著位相差薄膜2之方式來貼著。 進而，由附有透明導電膜6之位相差薄膜5而成之上部基板17在形成有空氣間隙8之分隔物7上以接著透明導電膜6之方式來積層。 且，由附有黏著劑層30b之偏光板4而成之構件16在位相差薄膜5上介隔著黏著劑層30b來貼著。 且，將下部基板18、與空氣間隙8形成用分隔物7、與上部基板17、與構件16一體化者為觸控式面板模組22。 進而，於下面具有黏著劑層30a之附有黏著劑層之提高書寫感的薄膜1’在觸控式面板模組22之偏光板4上介隔著黏著劑層30a來貼著。提高書寫感的薄膜1’中，在基材薄膜20之上面具有提高書寫感層10，同時在下面具有黏著劑層30a。 [實施例] [0055] 以下，藉由實施例更詳細地說明本發明。但，本發明不限定於此等之記載。 [0056] [實施例1] 1.提高書寫感的薄膜之製造 （1）提高書寫感層形成用組成物之準備步驟 如以下所示，混合作為（A）成分之活性能量線硬化性樹脂、與作為（B）成分之填料、與作為（C）成分之均染劑、與作為（D）成分之光聚合起始劑，同時以丙二醇單甲基醚與異丁醇之混合溶媒來稀釋，調製固體成分濃度30重量%之提高書寫感層形成用組成物。 且，下述以及表1中之摻混量表示經純分換算之值。 [0057]
[0058] 且，（B）成分之Cv值意指下述式（1）所表示之粒徑分布的變動係數。 Cv值（%）=（標準偏差粒徑/算術平均粒徑）×100 （1） 且，（B）成分之算術平均粒徑以及Cv值使用雷射繞射散射式粒度分布測定裝置（堀場製作所（股）製、LA-920）來測定。 此時，作為分散溶劑，使用丙二醇單甲基醚。 [0059] （2）塗布步驟 接著，將所得之提高書寫感層形成用組成物塗布於作為基材薄膜之附有易接著層之PET薄膜（Toray（股）製、Lumirror U48、厚度：125μm）之易接著層上，形成塗布層。 [0060] （3）乾燥步驟 接著，使所得之塗布層使用熱風乾燥裝置並以70℃、1分鐘之條件進行乾燥。 [0061] （4）硬化步驟 接著，對乾燥後之塗布層，使用紫外線照射裝置（GS Yuasa Corporation（股）製、光源：高壓水銀燈），以下述條件照射紫外線，將塗布層硬化後，作為厚度5μm之提高書寫感層，得到最後的提高書寫感的薄膜。 燈電力：1.4kW 輸送速度：1.2m/分鐘 照度：100mW/cm2
光量：240mJ/cm2
[0062] 2.評價 （1）筆頭阻力之測定 進行所得之提高書寫感的薄膜中的筆頭阻力之測定。 亦即，如圖2所示，一邊將具備筆頭直徑為0.5mm之硬毛氈筆芯之觸控筆（Wacom（股）製、ACK-2003）之筆頭，以觸控筆之軸心與提高書寫感的薄膜之薄膜面成垂直之狀態，並於荷重3.92N之加壓條件使其接觸提高書寫感層之表面，一邊使觸控筆往與提高書寫感的薄膜之薄膜面平行的任意一方向，以速度100mm/分鐘移動。 且，使用檢測器（島津製作所（股）製、AUTOGRAPH AG-IS 500N），測定因應移動距離（mm）之筆頭阻力（mN），得到移動距離（mm）-筆頭阻力（mN）圖表。 且，從所得之移動距離（mm）-筆頭阻力（mN）圖表中求出筆頭滑動阻力之平均值、最大值、最小值，並同時算出筆頭滑動係數（-）。將所得之結果表示於表1。 且，以求出平均值、最大值、最小值時的移動距離之範圍以筆頭初動阻力之影響較收斂之點來說，設為到50mm為止之範圍。亦即，使用移動距離30~80mm之範圍進行上述各種分析。 [0063] （2）傅氏轉換 接著，將所得之移動距離（mm）-筆頭阻力（mN）圖表使用Excel（登錄商標）進行傅氏轉換，得到頻率（Hz）-振幅（-）圖表。 且，從所得之頻率（Hz）-振幅（-）圖表求出頻率1~2Hz以及2~5Hz之範圍中的振幅之平均值、最大值以及振幅為特定以上之波峰數、將所得之結果表示於表1。 [0064] （3）算術平均粗度Ra之測定 測定所得之提高書寫感的薄膜中之算術表面粗度Ra。 亦即，使用接觸型粗度計（Mitutoyo（股）製、SV3000S4），根據JIS B 0601-1994，測定所得之提高書寫感的薄膜之提高書寫感層中之算術平均粗度Ra（μm）。將所得之結果表示於表1。 [0065] （4）霧度值之測定 測定所得之提高書寫感的薄膜中之霧度值。 亦即，使用霧度計（日本電色工業（股）製、NDH2000），根據JIS K 7136-2000，測定所得之提高書寫感的薄膜之霧度值（%）。將所得之結果表示於表1。 [0066] （5）書寫感之評價 （5）-1 筆頭滑溜感 評價所得之提高書寫感的薄膜中之筆頭滑溜感。 亦即，將提高書寫感的薄膜以提高書寫感層在上方的方式固定在玻璃板上，作為樣品。 接著，使專門小組成員以觸控筆（Wacom（股）製、ACK-2003）模擬地對樣品進行特定筆記操作，根據下述基準來評價，作為筆頭滑溜感之評價。將所得之結果表示於表1。 ◎：筆頭不會滑溜 ○：筆頭稍微滑溜 ×：筆頭過度滑溜 [0067] （5）-2 筆頭卡住感 同樣地，根據下述基準來評價筆頭卡住感。將所得之結果表示於表1。 ◎：不會感覺筆頭之卡住感 ○：稍為殘有筆頭之卡住感 ×：筆頭過度卡住 [0068] （5）-3 刮擦聲 同樣地根據下述基準來評價刮擦聲。將所得之結果表示於表1。 ◎：充分聽到咻咻的聲音 ○：雖然聽到咻咻的聲音，但稍微小 △：些許得聽到咻咻的聲音 ×：聽不到咻咻的聲音 [0069] （5）-4 振動 同樣地根據下述基準來評價振動。將所得之結果表示於表1。 ◎：手有感受適度的振動 ○：手有感受振動但不足夠 ×：手感受的振動過小或過大 [0070] （6）眩光之評價 評價所得之提高書寫感的薄膜中產生的眩光。 亦即，首先，準備有以200ppi（畫素/吋）來設置光透過部之格子狀圖型。 相關之格子狀圖型係，於玻璃板上設置金屬蒸著層後，對金屬蒸著層進行光阻處理，蝕刻後進一步藉由去除光阻來製作。 接著，將準備之格子狀圖型裝載至背光（King（股）製、Bright Box 5000）上。 接著，將所得之提高書寫感的薄膜以提高書寫感層在上方的方式裝載於格子狀圖型上，確認眩光之產生處。 接著，使提高書寫感的薄膜在格子狀圖型上以與薄膜面平行之方向移動，預先有確認到的眩光之產生處與提高書寫感的薄膜一起移動時，判斷該眩光之產生是起因於提高書寫感的薄膜，根據下述基準來評價。將所得之結果表示於表1。 ◎：沒有確認到眩光 ○：些許確認到眩光 ×：顯著地確認到眩光 [0071] [實施例2] 實施例2中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之矽粒子的摻混量變更成10重量分之外，其他與實施例1同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。且，圖3（a）表示所得之移動距離（mm）-筆頭阻力（mN）圖表，圖3（b）表示所得之頻率（Hz）-振幅（-）圖表。 [0072] [實施例3] 實施例3中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之矽粒子之摻混量變更成12重量分之外，其他與實施例1同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。 [0073] [比較例1] 比較例1中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之矽粒子使用富士Silysia化學（股）製、Sylophobic 702（算術平均粒徑：4.1μm、Cv值：48%、形狀：不規則形）8.9重量分之外，其他與實施例1同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。且，圖5（a）表示所得之移動距離（mm）-筆頭阻力圖表，圖5（b）表示所得之頻率（Hz）-振幅（-）圖表。 [0074] [比較例2] 比較例2中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之樹脂粒子使用PMMA粒子（算術平均粒徑：3.0μm、Cv值：32%、形狀：球狀）7重量分之外，其他與實施例1同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。 [0075] [比較例3] 比較例3中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之樹脂粒子使用PMMA粒子（算術平均粒徑：1.5μm、Cv值：26%、形狀：球狀）1.5重量分之外，其他與實施例1同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。 [0076] [比較例4] 比較例4中，調製提高書寫感層形成用組成物時，除了將作為（B）成分之樹脂粒子之摻混量變更成3重量分之外，其他與比較例3同樣地製造提高書寫感的薄膜，並進行評價。將所得之結果表示於表1。 [0077] [參考例1] 參考例1中，除了使用紙（Kokuyo S&T（股）製、Campus Note A規尺 no-201A）來取代提高書寫感的薄膜，並使用鉛筆（三菱鉛筆（股）製、UNI、硬度：HB）來取代觸控筆之外，其他與實施例1同樣地評價（去除算術平均粗度Ra、霧度值、眩光之評價）。將所得之結果表示於表1。且，圖6（a）表示所得之移動距離（mm）-筆頭阻力（mN）圖表，圖6（b）表示所得之頻率（Hz）-振幅（-）圖表。 [0078][產業上可利用性] [0079] 如以上詳述，藉由本發明，於包含基材薄膜、與提高書寫感層之提高書寫感的薄膜中，將提高書寫感的薄膜之霧度值以及提高書寫感層之算術平均粗度Ra規定在特定之範圍內，且藉由對於提高書寫感層之表面，將使特定之觸控筆之筆頭以特定條件滑動時之筆頭滑動係數規定在特定之範圍內，能夠安定地將筆記振動控制在特定之範圍，且有效地再現以鉛筆筆記於紙時的書寫感，且能夠有效地抑制眩光之產生。 因此，能夠期待本發明之提高書寫感的薄膜顯著地賦予對觸控式面板使用觸控筆輸入時的書寫感以及可視性之提升。[Mode for Carrying Out the Invention] [0016] An embodiment of the present invention is a film 1 for improving writing feeling, as shown in FIG. The film 1 for improving writing feeling is characterized in that the haze value is set to a value in the range of 10 to 40%, and the arithmetic mean thickness Ra in the writing feeling improving layer 10 is set to be in the range of 0.15 to 1 μm. value, and as shown in FIG. 2 , while connecting the pen tip 52 of the stylus 50 with a hard felt refill with a pen tip 52 having a diameter of 0.5 mm, the axis of the stylus 50 and the film of the film 1 for improving writing feeling The surface is in a vertical state, and under the pressure condition of the load of 3.92N, it is in contact with the surface of the writing feeling-improving layer 10, while the stylus 50 is moved to any direction parallel to the film surface of the writing feeling-enhancing film 1 D. When moving at a speed of 100mm/min, set the sliding coefficient of the pen tip when measuring the resistance of the pen tip to a value within the range of 0.1 to 0.5. Hereinafter, a specific description will be given with reference to appropriate drawings. 1. Improve writing feeling layer (1) Improve writing feeling layer forming composition The improving writing feeling layer in the film for improving writing feeling of the present invention is composed of at least an active energy ray curable resin, and a filler to improve writing. Preferably, it is a hardened product of the composition for forming a sensitive layer. Hereinafter, each component contained in the composition for forming a writing feeling-improving layer will be described. (1)-1 (A) Component: Active Energy Ray Curable Resin As the type of the active energy ray curable resin of the (A) component contained in the composition for improving the writing feel layer formation, there is no particular limitation. can be selected from conventionally known ones, and examples include energy ray curable monomers, oligomers, resins, or mixtures thereof. More specifically, it is preferable to use a polyfunctional (meth)acrylic-based monomer or a (meth)acrylate-based prepolymer, from the viewpoint of making the resulting writing feeling-improving layer more excellent in scratch resistance, It is more preferable to use a polyfunctional (meth)acrylate type monomer. In addition, as the polyfunctional (meth)acrylic monomer, it is preferable to be a polyfunctional (meth)acrylic monomer having two or more (meth)acryloyl groups in the molecule and having two or more functions. , from the viewpoint of making the scratch resistance more excellent, trifunctional or higher is more preferable, and 5-functional or higher is particularly preferable. On the other hand, the polyfunctional (meth)acrylic monomer is preferably 20-functional or less, more preferably 12-functional or less, especially 9-functional or less, from the viewpoint of suppressing curling of the film that improves the writing feel. good. In addition, the polyfunctional (meth)acrylic monomer preferably has a molecular weight of 1,000 or less from the viewpoint of compatibility with other components. And, as the specific example of the multifunctional (meth)acrylic monomer, there are for example 1,4-butanediol di(meth)acrylate, 1,6-hexanediol di(methyl) ) acrylate, neopentyl glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, hydroxy-tert-valerate neopentyl glycol di(meth)acrylate, dicyclopentyl di(meth)acrylate meth)acrylate, caprolactone modified dicyclopentenyl di(meth)acrylate, ethylene oxide modified phosphoric acid di(meth)acrylate, allyl cyclohexyl di(meth)acrylate, Isocyanate di(meth)acrylate, trimethylolpropane tri(meth)acrylate, dipentaerythritol tri(meth)acrylate, propionic acid modified dipentaerythritol tri(meth)acrylate, pentaerythritol tri(meth)acrylate base) acrylate, propylene oxide modified trimethylolpropane tri(meth)acrylate, ginseng (acryloyloxyethyl) isocyanate, propionic acid modified dipentaerythritol penta(meth)acrylate, dipentaerythritol Hexa(meth)acrylate, caprolactone modified dipentaerythritol hexa(meth)acrylate, etc. In addition, these may be used individually by 1 type, and may be used in combination of 2 or more types. [0021] Furthermore, as the (meth)acrylate-based prepolymer, for example, polyester acrylate-based, epoxy acrylate-based, urethane acrylate-based, polyol acrylate-based, and the like are exemplified. Here, as a polyester acrylate-based prepolymer, for example, the hydroxyl group of a polyester oligomer having hydroxyl groups at both ends obtained by condensation of a polyvalent carboxylic acid and a polyhydric alcohol can be esterified with (meth)acrylate , or the hydroxyl group at the end of the oligomer obtained by adding a polyvalent carboxylic acid to an alkane oxide is esterified with (meth)acrylic acid. In addition, the epoxy acrylate-based prepolymer can be obtained by, for example, reacting and esterifying the ethylene oxide ring of a relatively low molecular weight bisphenol-type epoxy resin or novolak-type epoxy resin with (meth)acrylic acid. Also, the urethane acrylate-based prepolymer can be obtained by, for example, reacting polyether polyol or polyester polyol with polyisocyanate. Furthermore, the polyol acrylate-based prepolymer can be obtained by esterifying the hydroxyl group of the polyether polyol with (meth)acrylic acid. Moreover, these prepolymers may be used individually by 1 type, and may be used in combination of 2 or more types, and the said polyfunctional (meth)acrylate type monomer may be used together. (1)-2 (B) component: filler (i) kind as the kind of the filler of the (B) component that is included in the composition that improves writing feeling layer formation, also can be inorganic particle, also can be organic Inorganic particles are more preferred from the viewpoint of improving the hardness of the resulting writing feeling-improving layer. As the relevant inorganic particles, there are particles formed of silicon, titanium dioxide, zirconium dioxide, tin oxide, indium oxide, cadmium oxide, antimony oxide, and the like. Among them, silicon particles are preferably used. The reason for this is that if it is silicon particles, the Cv value is sufficiently large, and the uneven shape on the surface of the writing feeling-enhancing layer becomes more complicated, and the writing feeling when writing with pencil on paper can be reproduced more effectively. Furthermore, even if the arithmetic mean particle size is small, the writing feel characteristics are easily obtained, and the generation of glare can be further effectively controlled. In addition, these may be used individually by 1 type, and may be used in combination of 2 or more types. (ii) shape and it is preferable to set the shape of the filler as irregular. The reason for this is that when an irregular-shaped filler is used, not only the Cv value becomes larger, but also the protrusions on the surface of the writing feeling-improving layer correspond to the irregular shape of the filler, compared with the use of a regular-shaped filler such as a spherical shape. Get writing feel characteristics. In addition, in the present invention, "irregular shape" means a shape that is not a regular shape such as a spherical or elliptical shape, but has an irregular number of corners or surfaces. (iii) Arithmetic mean particle size And, it is better to set the arithmetic mean particle size of the filler to a value within the range of 0.5 to 3 μm. The reason for this is that if the relative arithmetic mean particle size is a value of less than 0.5 μm, the surface of the writing feeling-improving layer becomes smoother, and the sliding coefficient of the pen tip becomes lower, making it difficult to effectively reproduce pencil notes on paper in some cases. sense of writing. On the other hand, if the relative arithmetic mean particle size exceeds 3 μm, the surface of the writing feeling-improving layer will have gentle unevenness, and the arithmetic mean roughness Ra will show a small value, which makes it difficult to reproduce effectively. The writing feeling when writing with pencil on paper is sometimes prone to glare. Therefore, it is more preferable to set the lower limit of the arithmetic mean particle size of the filler to a value of 0.8 μm or more, and more preferably to be a value of 1 μm or more. Furthermore, it is more preferable to set the upper limit of the arithmetic mean particle diameter of the filler to a value of 2.5 μm or less, and more preferably to be a value of 2 μm or less. (iv) Cv value and it is better to set the Cv value of the filler as a value within the range of 5～200%. The reason for this is that when the relevant Cv value is a value of less than 5%, the unevenness shape on the surface of the writing feeling improving layer becomes relatively monotonous, and it may be difficult to obtain sufficient writing feeling characteristics. On the other hand, if the relevant Cv value exceeds 200%, the number of particles that do not impart a sense of writing increases, the necessary amount of particles increases, and glare is likely to occur in some cases. Therefore, the lower limit of the Cv value of the filler is more preferably a value of 20% or more, more preferably a value of 40% or more, and particularly preferably a value of 60% or more. In addition, the upper limit of the Cv value of the filler is more preferably a value of 150% or less, and more preferably a value of 100% or less. (v) Compounding Amount Further, the blending amount of the filler is preferably set to a value within the range of 5 to 30 parts by weight relative to 100 parts by weight of the active energy ray-curable resin as the (A) component. The reason for this is that if the relevant blending amount is less than 5 parts by weight, it is difficult to form fine irregularities on the surface of the writing feeling-improving layer, and the arithmetic mean thickness and haze value become smaller, which is sometimes difficult. Effectively reproduces the writing feel when writing with pencil on paper. On the other hand, if the relevant blending amount exceeds 30 parts by weight, glare is likely to occur, the haze value will become too large, and the visibility of the displayed image on the display may be excessively reduced. Therefore, the lower limit of the blending amount of the filler is more preferably 8 parts by weight or more, and more preferably 10 parts by weight or more. Moreover, it is more preferable to set the upper limit of the blending amount of the filler to a value of 20 parts by weight or less, and it is more preferable to set it to a value of 15 parts by weight or less. (1)-3 (C) component: leveling agent and it is preferable that the composition for improving writing feeling layer formation contains the leveling agent as (C) component. The reason for this is that, by including a leveling agent, the occurrence of texture-like defects and unevenness on the surface of the obtained writing feeling-improving layer can be effectively suppressed, and the thickness can be controlled to be uniform. And, as the kind of leveling agent, there are for example siloxane-based leveling agent, fluorine-based leveling agent, acrylic leveling agent, vinyl leveling agent etc., wherein, with leveling property or with From the viewpoint of the compatibility of other components, a siloxane-based leveling agent and a fluorine-based leveling agent are preferable. Moreover, a leveling agent may be used individually by 1 type, and may be used in combination of 2 or more types. [0029] Furthermore, as the siloxane-based leveling agent, polydimethylsiloxane or modified polydimethylsiloxane is preferred, and polydimethylsiloxane is particularly preferred. In addition, as the fluorine-based leveling agent, a compound having a perfluoroalkyl group or a fluorinated alkenyl group in the main chain or side chain is preferable, and BYK-340 manufactured by BYK Japan Co., Ltd., Futagent 650A manufactured by Neos (stock), Megaface RS-75 manufactured by DIC (stock), V-8FM manufactured by Osaka Organic Chemical Industry (stock), etc. And, as the blending amount of the leveling agent, with respect to 100 parts by weight of the active energy ray-curable resin as the component (A), it is usually a value within the range of 0.001 to 10 parts by weight, and is preferably 0.005 to 0.005 to The value within the range of 5 parts by weight is more preferable, and the value within the range of 0.01 to 3 parts by weight is more preferable. (1)-4 (D) component: photopolymerization initiator In addition, it is preferable that the composition for improving the writing feeling layer formation contains the photopolymerization initiator as the (D) component. Examples of the relevant photopolymerization initiators include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin-n-butyl ether, benzoin isobutyl ether, acetophenone, Dimethylaminoacetophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxy-2-phenylacetophenone, 2-hydroxy-2-methyl yl-1-phenylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinyl-propane-1 - Ketone, 4-(2-hydroxyethoxy)phenyl-2(hydroxy-2-propyl)ketone, benzophenone, p-phenylbenzophenone, 4,4'-diethylamine 2-methylanthraquinone, 2-ethylanthraquinone, 2-tert-butylanthraquinone, 2-aminoanthraquinone, 2-methylthioanthraquinone Xanone, 2-ethylthioxanthone, 2-chlorothioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, benzyl Dimethyl ketal, acetophenone dimethyl ketal, p-dimethylaminobenzoate, etc. In addition, these may be used individually by 1 type, and may be used in combination of 2 or more types. In addition, the blending amount of the photopolymerization initiator is preferably a value within the range of 0.2 to 10 parts by weight with respect to 100 parts by weight of the active energy ray-curable resin as the component (A). (1)-5 To improve the preparation of the composition for forming the writing feeling layer, and the composition for improving the writing feeling layer forming can be added to the above-mentioned (A) ~ (D) components etc. in a suitable solvent as necessary, and It is prepared by dissolving or dispersing it. In this case, as components other than the components (A) to (D), for example, an antistatic agent, a surfactant, an antioxidant, an ultraviolet absorber, a silane-based coupling agent, a photostabilizer, and an antifoaming agent can be added. In addition, as the solvent to be used, for example, alcohols such as methanol, ethanol, isopropanol, n-butanol, isobutanol, and octanol; acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclic Ketones such as hexanone; Esters such as ethyl acetate, butyl acetate, ethyl lactate, γ-butyrolactone, etc.; Ethers (Ethyl Cyrus), Diethylene Glycol Monobutyl Ether (Butyl Cyrus), Propylene Glycol Monomethyl Ether, etc.; Aromatic Hydrocarbons of Benzene, Toluene, Xylene, etc.; Xylene Carboxamides such as methylformamide, dimethylacetamide, N-methylpentazaketone, etc. (2) Thickness And, it is better to set the thickness of the writing-improving layer to a value within the range of 0.1 to 50 μm. The reason for this is that when the relevant thickness is a value of less than 0.1 μm, it may be difficult to ensure sufficient writing feel characteristics. On the other hand, if the relative thickness is a value exceeding 50 μm, curling may easily occur in the film which improves the writing feeling. Therefore, it is more preferable to set the lower limit of the thickness of the writing feeling-improving layer to a value of 1 μm or more, and more preferably a value of 3 μm or more. In addition, it is more preferable to set the upper limit of the thickness of the writing feeling-improving layer to a value of 20 μm or less, and more preferably a value of 10 μm or less. 2. Substrate film as the kind of substrate film, although not particularly limited, there are for example polyethylene terephthalate, polybutylene terephthalate, polyethylene phthalate Polyester film such as polyester film, polyethylene film, polypropylene film and other polyolefin film, silofan, cellulose diacetate film, cellulose triacetate film, butyl cellulose acetate film, polyvinyl chloride film, polyethylene film Chlorinated vinylidene film, polyvinyl alcohol film, ethylene-vinyl acetate copolymer film, polystyrene film, polycarbonate film, polymethylpentene film, polysilicon film, polyether ether ketone film, polyether silt Film, polyetherimide film, fluororesin film, polyamide film, acrylic resin film, polyurethane resin film, norbornene-based polymer film, cyclic olefin-based polymer film, cyclic co-polymer film Plastic films such as vinyl polymer films, vinyl alicyclic hydrocarbon polymer films, etc., or laminate films of these. Among them, a polyethylene terephthalate film, a polycarbonate film, a norbornene-based polymer film and the like are preferable in terms of mechanical strength and the like. And, in the base film, in order to improve the purpose of the adhesion of the layer arranged on its surface, it is better to apply surface treatment by primer treatment, oxidation method, concavo-convex method, etc. on one side or both sides. . In addition, it is preferable to set the thickness of the base film to a value within a range of 15 to 300 μm, and even more preferably to set a value within a range of 30 to 200 μm. 3. Adhesive layer And, as shown in FIG. 1(b), in the base film 20, it is preferable to have an adhesive layer 30 on the side opposite to the side where the writing feeling-improving layer 10 is located. As the adhesive constituting the relevant adhesive layer, for example, known adhesives such as acrylic adhesives, rubber-based adhesives, and silicone-based adhesives can be used. 4. Characteristics (1) Arithmetic mean roughness Ra In the present invention, the arithmetic mean roughness Ra in the writing feeling-improving film of the writing feeling-improving film is set to a value within the range of 0.15 to 1 μm. The reason for this is that by setting the arithmetic mean roughness Ra in the relevant range, it is close to the haze value and the sliding coefficient of the pen tip, which will be described later, and the writing vibration can be stably controlled within a specific range, thereby effectively reproducing pencil writing on paper. The feeling of writing at the time of writing can be effectively suppressed, and the generation of glare can also be effectively suppressed. That is, if the relative arithmetic mean roughness Ra is a value of less than 0.15 μm, there will be no protrusions sufficient to vibrate the pen tip due to the relationship with the pen pressure of a person. As a result, it is difficult to control the vibration of writing within a specific range, and it is difficult to effectively reproduce the writing feeling when writing with a pencil on paper. In addition, even if gentle unevenness is formed, the arithmetic mean roughness Ra is less than 0.15 μm, but in this case, although a certain degree of writing feel characteristics are obtained, glare occurs. On the other hand, if the relative arithmetic mean thickness Ra is a value exceeding 1 μm, there will be excessive protrusions due to the relationship with a person's pen pressure. As a result, it is difficult to control the writing vibration within a specific range, and sometimes it is difficult to effectively reproduce the writing feeling when writing with a pencil on paper, and to suppress the generation of glare. Therefore, the lower limit value of the arithmetic mean roughness Ra in the writing feeling-improving layer of the writing feeling-improving film is more preferably 0.2 μm or more, more preferably 0.22 μm or more. Furthermore, the upper limit value of the arithmetic mean roughness Ra in the writing feeling-improving layer of the writing feeling-improving film is more preferably 0.4 μm or less, more preferably 0.3 μm or less, and 0.28 μm The following values are particularly good. (2) Haze value And, in the present invention, the haze value of the film that improves writing feeling is set as the value in the scope of 10～40%. The reason for this is that if the relative haze value is less than 10%, the density of protrusions on the surface of the writing feeling-improving layer becomes too small. As a result, it is difficult to control the vibration of writing within a specific range, and sometimes it is difficult to reproduce the writing feeling when writing with pencil on paper. On the other hand, when the relevant haze value is a value exceeding 40%, glare is likely to be generated, and the visibility of the displayed image on the display may be likely to be excessively reduced. Therefore, it is more preferable to set the lower limit value of the haze value of the film which improves the writing feeling to a value of 15% or more, and it is more preferable to set it to a value of 20% or more. Moreover, it is more preferable to set the upper limit of the haze value of the film which improves the writing feeling to a value of 35% or less, and it is more preferable to set it to a value of 30% or less. [0039] Here, the complementary relationship between the arithmetic mean roughness Ra and the haze value will be described. First, the value of the arithmetic mean thickness Ra tends to be left and right due to the presence of large protrusions. That is, from the arithmetic mean thickness Ra, it can be grasped whether or not there is a protrusion having a high degree of writing feeling characteristic. However, when only the arithmetic mean roughness Ra is used as an index, the magnitude of the protrusion density cannot be judged, and it is difficult to obtain the writing feeling characteristic with certainty. On the other hand, the haze value is a numerical value associated with the protrusion density, and the larger the protrusion density, the larger the haze value. Therefore, by setting the haze value to be equal to or higher than a specific value, it is possible to indirectly define the density of protrusions that impart writing feel characteristics. Therefore, when only the haze value is used as an index, the height of the protrusions cannot be judged, and it is difficult to obtain the writing feeling characteristic with certainty. For the above reasons, by specifying both the arithmetic mean roughness Ra and the haze value, it is possible to specify the height and density of protrusions necessary to obtain excellent writing feel characteristics, respectively. (3) Writing feeling characteristic (3)-1 pen tip sliding coefficient And, the film that improves the writing feeling of the present invention is characterized in that, as shown in Figure 2, one side will have a hard felt pen with a pen tip 52 diameter of 0.5mm. The tip 52 of the stylus 50 of the core is in a state where the axis of the stylus 50 is perpendicular to the film surface of the film 1 for improving writing feeling, and is in contact with the pressure condition of the load of 3.92N (400gf). On the surface of the writing feeling-improving film 1 on the surface of the writing-sensing-improving layer 10, while moving the stylus 50 in any direction parallel to the film surface of the writing-sensing-improving film 1 at a speed of 100 mm/min, the resistance of the pen tip was measured. The pen tip sliding coefficient is set to a value within the range of 0.1~0.5. The reason for this is that if the relative tip slip coefficient is less than 0.1, the tip tends to be too slippery, and the controllability of the tip tends to decrease, making it difficult to reproduce the writing feel when writing with pencil on paper. On the other hand, if the relative sliding coefficient of the tip exceeds 0.5, the tip tends to get stuck excessively, and conversely, the controllability of the tip tends to decrease, and it becomes difficult to reproduce the writing feeling when writing with pencil on paper. Glare easily occurs. Therefore, it is more preferable to set the lower limit value of the tip sliding coefficient to a value of 0.17 or more, and it is more preferable to set it to a value of 0.19 or more. Furthermore, it is more preferable to set the upper limit of the tip sliding coefficient to a value of 0.3 or less, and more preferably to set it to a value of 0.25 or less. [0041] In addition, in the present invention, "tip resistance" refers to the resistance that the stylus receives when the stylus is moved under the above conditions. In addition, in the present invention, the "tip sliding coefficient" means a value obtained by dividing the average value of the maximum value and the minimum value of the "tip sliding resistance" by the load (3.92N). Moreover, in the present invention, "tip sliding resistance" means that in the moving distance (mm)-tip resistance (mN) graph, the influence of the initial movement resistance of the writing head when the writing head starts to move is relatively convergent, and the resistance of the writing head when the writing head enters a stable sliding state. . Therefore, for example, in the graph of moving distance (mm)-tip resistance (mN) in the film for improving writing feeling of Example 2 as shown in FIG. Therefore, the tip resistance in the range of the moving distance of 30 mm or more becomes the tip sliding resistance. In addition, the upper limit of the moving distance when the sliding resistance of the pen is specified is not particularly limited, but in consideration of the fluctuation of the value caused by the frictional heat of the pen, in the past, it was a position 50mm away from the point where the influence of the initial resistance of the pen converges. better. And, as mentioned above, by the arithmetic mean thickness Ra and the haze value, the surface shape suitable for the writing feeling characteristic can be specified, but the actual writing feeling characteristic also must consider the influence that the surface material etc. bring. For example, in the case of a material with high sliding stability and a material with a relatively difficult sliding property, even if the surface shape of the writing feeling enhancing layer is the same, the writing feeling characteristic is very different. Complementing this is the tip slip factor. With the tip sliding coefficient, the total relative force on the tip can be grasped. Therefore, in the present invention, the writing feeling-improving layer is limited in two aspects, the surface shape and the properties of the material. [0043] Here, for the measuring method of the resistance of the pen tip, an example is given to illustrate more specifically. That is, first, as shown in FIG. 2 , the writing feeling-improving film 1 as the measurement object is fixed on the upper surface of the glass plate 40 with the writing feeling-improving layer 10 on the upper side. Next, after the bogie 70 for measurement is placed over the film 1 for improving writing feeling, the stylus 50 is inserted into the through hole 72 provided in the bogie 70 for measurement and extending in the vertical direction. Next, the weight 60 is fixed to the stylus 50 , and the pen tip 52 is brought into contact with the surface of the writing feeling-improving layer 10 under a pressure condition of a load of 3.92 N. Next, using the detector 100 manufactured by Shimadzu Corporation, AUTOGRAPH AG-IS 500N, etc., the drawing line 90 fixed to the bogie 70 for measurement is moved to the direction D parallel to the film surface through the pulley 80 And stretched at a speed of 100mm/min, while measuring the resistance of the pen tip. In addition, by setting the pressure condition higher than the pressure condition of the general note taking such as the load of 3.92N, the pressing force of the pen tip 52 on the writing feeling enhancing layer 10 becomes stronger, so it can respond to the uneven shape of the writing feeling enhancing layer 10 With high sensitivity, it is also possible to detect slight differences in the uneven shape of the writing feeling-improving layer 10 . [0044] (3)-2 Pen tip sliding resistance And, for the same reason as the above-mentioned pen tip sliding coefficient, it is better to set the average value of the pen tip sliding resistance as a value within the range of 500 to 1000 mN. Therefore, it is more preferable to set the lower limit value of the average value of the sliding resistance of the pen tip to a value of 520 mN or more, and it is more preferable to set it to a value of 560 mN or more. In addition, it is more preferable to set the upper limit value of the average value of the sliding resistance of the pen tip to a value of 800 mN or less, and it is more preferable to set it to a value of 700 mN or less. Moreover, the average value of the sliding resistance of the stylus means that in the specific moving distance interval where the sliding resistance of the stylus is stable, the sum of the maximum and minimum values of all the sliding resistances of the stylus existing in the interval is obtained, and divided by these values. [0045] Moreover, it is better to set the difference between the maximum value and the minimum value of the sliding resistance of the pen tip as a value within the range of 100-300 mN. The reason for this is that if the value of the correlation difference is a value of less than 100 mN, the writing vibration becomes small, and it may be difficult to reproduce the writing feeling when writing with a pencil on paper. on the other hand. If the value of the correlation difference exceeds a value of 300 mN, the writing vibration may become too large, and conversely, it may be difficult to reproduce the writing feeling when writing with a pencil on paper. Therefore, it is more preferable to set the lower limit value of the difference between the maximum value and the minimum value of the sliding resistance of the pen tip to a value of 110 mN or more, and more preferably to a value of 120 mN or more. Furthermore, it is more preferable to set the upper limit of the difference between the maximum value and the minimum value of the sliding resistance of the pen tip to a value of 200 mN or less, and more preferably to a value of 150 mN or less. (3)-3 The characteristic of frequency region (i) the amplitude in the range of frequency 1～2Hz and, as shown in above-mentioned Fig. 3 (a) moving distance (mm)-tip resistance (mN) chart, In the frequency (Hz)-amplitude (-) graph as shown in Figure 3(b) obtained by performing Fourier transform using, for example, Excel (registered trademark), the amplitude in the frequency range of 1 to 2 Hz is calculated as the The average value is preferably set to a value within the range of 0.8 to 3. The reason for this is that the inventors of the present invention have found out empirically that when writing vibrations are obtained by superimposing multiple vibrations having various frequencies, the characteristic vibrations that the human body perceives as a “writing feeling” is a frequency of 1 to 2 Hz in particular. range of vibrations. Therefore, the average value of the amplitudes in the frequency range of 1 to 2 Hz is approximated to the case of writing on paper with pencil, and the writing feeling when writing on paper with pencil can be effectively reproduced. Therefore, it is more preferable to set the lower limit value of the average value of the amplitude in the frequency range of 1 to 2 Hz to a value of 1 or more, and more preferably to be a value of 1.1 or more. Moreover, it is more preferable to set the upper limit of the average value of the amplitude in the frequency range of 1 to 2 Hz to a value of 2 or less, and more preferably to be a value of 1.6 or less. In addition, the average value of the amplitude means that in the target frequency interval, the sum of the maximum value and the minimum value of all the amplitudes existing in the interval is obtained, and the value is divided by these numbers. [0047] Moreover, it is better to set the maximum value of the amplitude in the range of the frequency 1 to 2 Hz as a value in the range of 2 to 10. The reason for this is that if the maximum value of the correlation is a value less than 2, it becomes a value smaller than the value of the difference when writing with pencil on paper, and it is sometimes difficult to effectively reproduce when writing with pencil on paper. sense of writing. On the other hand, if the maximum value of the correlation exceeds 10, it becomes a value larger than the maximum value when writing with pencil on paper, and it may be difficult to effectively reproduce the writing when writing with pencil on paper. sense. Therefore, the lower limit value of the maximum value of the amplitude in the frequency range of 1 to 2 Hz is more preferably 2.5 or more, more preferably 2.7 or more, and particularly preferably 2.8 or more. Furthermore, it is more preferable to set the upper limit of the maximum value of the amplitude in the frequency range of 1 to 2 Hz to a value of 9 or less, and it is more preferable to set it to a value of 8 or less. Moreover, from the viewpoint of more effectively reproducing the writing feeling when writing with pencil on paper, it is preferable that the frequency range of 1 to 2 Hz has at least one peak with an amplitude of 1.5 or more, and the lower limit of the number of related peaks is set. It is more preferable to set the value to be 2 or more, and it is more preferable to set the value to 4 or more. In addition, the upper limit of the number of correlation peaks is preferably set to a value of 9 or less, and more preferably set to a value of 8 or less. (ii) the amplitude in the range of frequency 2～5Hz and, the range of frequency 2～5Hz does not have the peak of amplitude 5 or more preferably. The reason for this is that if there is a peak with an amplitude of 5 or more in the relevant frequency range, it is easy to generate a feeling that the pen tip is stuck, or to feel a large vibration different from a fine vibration such as a writing feeling. [0050] Moreover, it is better to set the average value of the amplitude in the range of the frequency 2 to 5 Hz as a value in the range of 0.01 to 1.5. The reason for this is that if the correlation average value is less than 0.01, it becomes a value smaller than the average value when writing with pencil on paper, and it may be difficult to effectively reproduce writing when writing with pencil on paper. sense. In addition, because it is difficult to control the amplitude in the frequency range of 1 to 2 Hz, it is sometimes difficult to effectively reproduce the writing feeling when writing with a pencil on paper. On the other hand, if the average value of the correlation exceeds 1.5, it becomes a value larger than the average value when writing with pencil on paper, and it is sometimes difficult to effectively reproduce the time when writing with pencil on paper. sense of writing. In addition, because it is difficult to control the amplitude in the frequency range of 1 to 2 Hz, it is sometimes difficult to effectively reproduce the writing feeling when writing with a pencil on paper. Therefore, the lower limit of the average value of the amplitude in the frequency range of 2 to 5 Hz is more preferably 0.1 or more, more preferably 0.2 or more, and particularly preferably 0.3 or more. In addition, the upper limit of the average value of the amplitude in the frequency range of 2 to 5 Hz is more preferably a value of 1.2 or less, more preferably a value of 0.8 or less, and particularly preferably a value of 0.6 or less. [0051] Moreover, it is better to set the maximum value of the amplitude in the range of frequency 2 to 5 Hz as a value in the range of 0.1 to 5. The reason for this is that if the maximum value of the correlation is a value less than 0.1, it becomes a value smaller than the maximum value when writing with pencil on paper, and it may be difficult to effectively reproduce the maximum value when writing with pencil on paper. sense of writing. In addition, because it is difficult to control the amplitude in the frequency range of 1 to 2 Hz, it is sometimes difficult to effectively reproduce the writing feeling when writing with a pencil on paper. On the other hand, when the maximum value of the correlation exceeds 5, it becomes a value larger than the maximum value when writing on paper with pencil, and it is sometimes difficult to effectively reproduce the writing on paper with pencil. sense of writing. In addition, because it is difficult to control the amplitude in the frequency range of 1 to 2 Hz, it is sometimes difficult to effectively reproduce the writing feeling when writing with a pencil on paper. Therefore, the lower limit value of the maximum value of the amplitude in the frequency range of 2 to 5 Hz is more preferably 0.6 or more, more preferably 0.8 or more, and particularly preferably 1 or more. Furthermore, the upper limit of the maximum value of the amplitude in the frequency range of 2 to 5 Hz is more preferably 4 or less, more preferably 3 or less, and particularly preferably 2.4 or less. 5. the manufacture method of the film that improves writing feeling as the manufacture method of the film that improves writing feeling of the present invention, at first on the surface of base film, use known methods in the past, such as bar coating method, knife coating method, roller A coating method, a paddle coating method, a die casting coating method, a gravure coating method, or the like is used to apply the composition for forming a writing feeling-improving layer to form a coating film. Next, after drying the coating film, the coating film is irradiated with active energy rays to harden the coating film, and a film with improved writing feeling is obtained by using the coating film as a writing feeling-improving layer. [0053] Furthermore, as the curing of the coating film, it is preferable to irradiate the coating film with active energy rays such as ultraviolet rays, electron beams, and the like. The ultraviolet irradiation can be performed by a high pressure mercury lamp, an ultraviolet H lamp, a xenon lamp, or the like, and the irradiation dose is preferably set to an illuminance of 50 to 1000 mW/cm 2 and a light quantity of about 50 to 1000 mJ/cm 2 . On the other hand, the electron beam irradiation can be performed by an electron beam accelerator or the like, and the irradiation amount is preferably about 10 to 1000 krad. [0054] Furthermore, by applying the film for improving the writing feeling of the above-described embodiment to the surface of the touch panel, a display device with a touch panel having excellent writing feeling characteristics as shown in FIG. 4 can be constituted. That is, FIG. 4 is a detailed cross-sectional view showing an example of a display device 25 with a touch panel to which the film 1 ′ for improving writing feeling of the present invention is applied, and the display device 25 with a touch panel has the following the structure. In addition, in the display device 25 with a touch panel, the writing feeling-improving layer 10 becomes the uppermost surface. The LCD module 21 formed by the backlight unit 14 , the polarizer 13 , the adhesive layer 30 c and the liquid crystal display element (LCD) 12 is attached under the concave-convex compliant laminate member 11 in a manner of adhering to the liquid crystal display element 12 . On the other hand, the lower substrate 18 made of the retardation film 2 with the transparent conductive film 9 attached thereto is attached to the upper surface of the unevenness-compliant laminate member 11 so as to adhere to the retardation film 2 . Furthermore, the upper substrate 17 made of the retardation film 5 with the transparent conductive film 6 is laminated on the spacer 7 with the air gap 8 formed thereon so as to adhere to the transparent conductive film 6 . Then, the member 16 formed of the polarizing plate 4 with the adhesive layer 30b attached thereto is attached to the retardation film 5 via the adhesive layer 30b. In addition, the lower substrate 18 , the spacer 7 for forming the air gap 8 , the upper substrate 17 , and the member 16 are integrated into the touch panel module 22 . Further, the film 1 ′ for improving writing feeling with the adhesive layer 30 a below is attached to the polarizer 4 of the touch panel module 22 via the adhesive layer 30 a. The writing feeling-improving film 1 ′ has the writing feeling-improving layer 10 on the upper surface of the base film 20 and the adhesive layer 30 a on the lower surface. [Examples] [0055] Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these descriptions. [Example 1] 1. Manufacture of film for improving writing feeling (1) The preparation procedure of the composition for forming a writing feeling improving layer is as follows, and the active energy ray-curable resin as component (A), the active energy ray curable resin, It is diluted with a mixed solvent of propylene glycol monomethyl ether and isobutanol together with the filler as the component (B), the leveling agent as the component (C), and the photopolymerization initiator as the component (D). A composition for forming a writing feel-improving layer with a solid content concentration of 30% by weight was prepared. In addition, the compounding quantity in the following and Table 1 shows the value converted into a pure point. [0057] And, the Cv value of (B) component means the coefficient of variation of the particle size distribution represented by the following formula (1). Cv value (%) = (standard deviation particle diameter/arithmetic mean particle diameter) × 100 (1) In addition, the arithmetic mean particle diameter and Cv value of (B) component were measured using a laser diffraction scattering particle size distribution analyzer (Horiba, Ltd. (stock) system, LA-920) to measure. At this time, propylene glycol monomethyl ether was used as a dispersion solvent. (2) Coating step Next, the obtained composition for improving the writing feeling layer formation is coated on a PET film (Toray (stock) system, Lumirror U48, thickness: 125 μm) with an easy-bonding layer attached as a base film. On the easy bonding layer, a coating layer is formed. (3) Drying Step Next, the obtained coating layer was dried at 70° C. for 1 minute using a hot air drying device. (4) Curing step Next, the dried coating layer was irradiated with ultraviolet rays using an ultraviolet irradiation apparatus (manufactured by GS Yuasa Corporation, light source: high-pressure mercury lamp) under the following conditions, and after curing the coating layer, the thickness was determined as a thickness. The writing feeling-improving layer of 5 μm gave the final writing feeling-improving film. Lamp power: 1.4kW Conveying speed: 1.2m/min Illumination: 100mW/cm 2 Light quantity: 240mJ/cm 2 2. Evaluation (1) Measurement of tip resistance Determination. That is, as shown in Fig. 2, while the pen tip of a stylus with a hard felt refill with a pen tip diameter of 0.5mm (Wacom Co., Ltd., ACK-2003) is used to write with the axis of the stylus pen and the height of the pen. The film surface of the sensitive film is in a vertical state, and under the pressure condition of a load of 3.92N, it is brought into contact with the surface of the writing-sensing layer, and the stylus is moved to any direction parallel to the film surface of the writing-sensing-improving film. , move at a speed of 100mm/min. Then, using a detector (Autograph AG-IS 500N, manufactured by Shimadzu Corporation), the tip resistance (mN) in response to the movement distance (mm) was measured, and a movement distance (mm)-tip resistance (mN) graph was obtained. Then, from the obtained moving distance (mm)-tip resistance (mN) graph, the average value, maximum value, and minimum value of the tip sliding resistance were obtained, and the tip sliding coefficient (-) was calculated at the same time. The obtained results are shown in Table 1. In addition, the range of the moving distance when the average value, the maximum value, and the minimum value are obtained is set to a range up to 50 mm from the point where the influence of the initial resistance of the pen tip converges. That is, the above-mentioned various analyses were performed using the range of the moving distance of 30 to 80 mm. (2) Fourier transform Next, the obtained moving distance (mm)-tip resistance (mN) graph was subjected to Fourier transform using Excel (registered trademark) to obtain a frequency (Hz)-amplitude (-) graph. Then, from the frequency (Hz)-amplitude (-) graph obtained, the average value, the maximum value, and the number of crests whose amplitude is greater than a certain amplitude in the frequency range of 1 to 2 Hz and 2 to 5 Hz are obtained, and the obtained results are displayed. in Table 1. (3) The measurement of arithmetic mean roughness Ra measures the arithmetic surface roughness Ra in the film that improves writing feeling of gained. That is, the arithmetic mean roughness Ra (μm) in the writing feeling-improving layer of the obtained writing feeling-improving film was measured according to JIS B 0601-1994 using a contact type roughness meter (manufactured by Mitutoyo Co., Ltd., SV3000S4). The obtained results are shown in Table 1. (4) The measurement of haze value measures the haze value in the film that improves writing feeling of gained. That is, the haze value (%) of the obtained film with improved writing feeling was measured according to JIS K 7136-2000 using a haze meter (made by Nippon Denshoku Kogyo Co., Ltd., NDH2000). The obtained results are shown in Table 1. (5) Evaluation of writing feel (5)-1 The slipperiness of the pen in the film that improves the writing feeling obtained by evaluating the slipperiness of the pen. That is, the writing feeling-improving film was fixed on a glass plate so that the writing feeling-improving layer was above, and it was set as a sample. Next, a panelist was allowed to simulate a specific writing operation on the sample with a stylus pen (manufactured by Wacom Corporation, ACK-2003), and evaluated according to the following criteria as an evaluation of the slipperiness of the pen tip. The obtained results are shown in Table 1. ⊚: The tip is not slippery ◯: The tip is slightly slippery ×: The tip is excessively slippery [0067] (5)-2 Grabbing feeling of the tip Similarly, the feeling of jamming of the tip was evaluated according to the following criteria. The obtained results are shown in Table 1. ⊚: No sticking feeling of the pen tip is felt. ○: The sticking feeling of the writing tip is slightly left. ×: The writing tip is stuck too much. The obtained results are shown in Table 1. ◎: The humming sound is fully heard ○: The humming sound is heard, but slightly small △: The humming sound is slightly heard ×: The humming sound is not heard [0069] (5)-4 The vibration is similarly determined according to the following criteria Evaluate vibration. The obtained results are shown in Table 1. ⊚: Appropriate vibration is felt by the hand ○: The vibration is felt by the hand but not enough ×: The vibration felt by the hand is too small or too large That is, first, a lattice pattern in which light transmitting portions are provided at 200ppi (pixels/inch) is prepared. The related lattice pattern is formed by disposing the metal vaporization layer on the glass plate, and then performing photoresist treatment on the metal vaporization layer, and further removing the photoresist after etching. Next, the prepared lattice pattern was mounted on a backlight (King (stock) system, Bright Box 5000). Next, the obtained writing feeling-improving film was mounted on the lattice pattern so that the writing feeling-improving layer was above, and the place where the glare was generated was confirmed. Next, the film for improving writing feeling is moved on the lattice pattern in a direction parallel to the surface of the film, and when a place where glare has been confirmed beforehand moves together with the film for improving writing feeling, it is determined that the occurrence of glare is caused by The film which improved the writing feeling was evaluated according to the following criteria. The obtained results are shown in Table 1. ⊚: No glare was observed ○: Some glare was observed ×: Glare was observed significantly Except having changed the blending amount of the silicon particles to 10 parts by weight, it was carried out in the same manner as in Example 1 to manufacture and evaluate a film with improved writing feeling. The obtained results are shown in Table 1. Furthermore, Fig. 3(a) shows the obtained moving distance (mm)-pen resistance (mN) graph, and Fig. 3(b) shows the obtained frequency (Hz)-amplitude (-) graph. [Example 3] In Example 3, when preparing the composition for forming a writing-improving layer, except that the blending amount of the silicon particles as the component (B) was changed to 12 parts by weight, other parts were the same as the examples. 1 A film for improving writing feeling was produced and evaluated in the same manner. The obtained results are shown in Table 1. [Comparative Example 1] In Comparative Example 1, when preparing the composition for forming a writing-improving layer, except that the silicon particles as the component (B) were made of Fuji Silysia Chemical Co., Ltd., Sylophobic 702 (arithmetic mean particle size) : 4.1 μm, Cv value: 48%, shape: irregular) 8.9 parts by weight, a film for improving writing feeling was produced in the same manner as in Example 1, and evaluated. The obtained results are shown in Table 1. In addition, Fig. 5(a) shows the obtained moving distance (mm)-tip resistance graph, and Fig. 5(b) shows the obtained frequency (Hz)-amplitude (-) graph. [Comparative Example 2] In Comparative Example 2, when preparing the composition for forming a writing-improving layer, PMMA particles (arithmetic mean particle diameter: 3.0 μm, Cv value: 32) were used as the resin particles of the component (B). %, shape: spherical), except for 7 parts by weight, a film for improving writing feeling was produced in the same manner as in Example 1, and evaluated. The obtained results are shown in Table 1. [Comparative Example 3] In Comparative Example 3, when preparing the composition for forming a writing-improving layer, PMMA particles (arithmetic mean particle diameter: 1.5 μm, Cv value: 26) were used as the resin particles of the component (B). %, shape: spherical) except for 1.5 parts by weight, in the same manner as in Example 1, a film for improving writing feeling was produced and evaluated. The obtained results are shown in Table 1. [Comparative Example 4] In Comparative Example 4, when preparing a composition for forming a writing-improving layer, except that the blending amount of the resin particles as the component (B) was changed to 3 parts by weight, the rest were the same as those of Comparative Example. 3 A film for improving writing feeling was produced and evaluated in the same manner. The obtained results are shown in Table 1. [Reference Example 1] In Reference Example 1, a pencil (Mitsubishi Pencil (stock) was used except that paper (Kokuyo S&T (stock), Campus Note A gauge no-201A) was used instead of the film for improving the writing feel. The evaluation was carried out in the same manner as in Example 1, except that the stylus was replaced by the stylus (the evaluation of the arithmetic mean roughness Ra, the haze value, and the glare). The obtained results are shown in Table 1. In addition, Fig. 6(a) shows the obtained moving distance (mm)-pen resistance (mN) graph, and Fig. 6(b) shows the obtained frequency (Hz)-amplitude (-) graph. [0078] [Industrial Applicability] As described in detail above, according to the present invention, in the writing feeling-improving film including the base film and the writing feeling-improving layer, the haze value of the writing feeling-improving film and the increase in The arithmetic mean thickness Ra of the writing-sensing layer is specified within a specific range, and the tip sliding coefficient when the tip of a specific stylus is slid under specific conditions is specified within a specified range for improving the surface of the writing-sensing layer. It can stably control the vibration of the note within a specific range, and effectively reproduce the writing feeling when writing with pencil on paper, and can effectively suppress the generation of glare. Therefore, the writing feeling-improving film of the present invention can be expected to remarkably impart improved writing feeling and visibility when inputting with a stylus on a touch panel.
