201142381 六、發明說明： .【發明所屬之技術領域】 本發明係關於偏光性積層膜、偏光板及該等之製造方 法。 【先前技術】 偏光板係廣泛使用於作為在液晶顯示裝置等顯示裝置 中的偏光供給元件等。作為該偏光板，雖歷來使用三乙酸 纖維素所成之保護膜黏接於聚乙烯醇系樹脂所成之偏光膜 者’但近年伴隨液晶顯示裝置之筆記型個人電腦和手機等 行動機器之發展等，而要求薄型輕量化。 如此之薄型偏光板之製造方法，已有提案係藉由於基 材膜表面設置聚乙烯醇系樹脂層後，延伸，然後染色，而 得到具有偏光子層之偏光性積層膜，將此直接作為偏光板 利用’貼合保護膜於該偏光性積層膜後，剝離基材膜者作 為偏光板利用之方法（例如參照jP2〇〇〇_338329-A、JP2009- 93074-A 、 JP2009-98653-A 及 JP2003-43257-A)。 藉上述歷來之方法得到，於基材膜表面形成聚乙烯醇 系樹脂層而成之偏光板中，藉由將聚乙烯醇系樹脂之水溶 液直接塗佈於基材膜表面上而形成樹脂層，有得到比用聚 乙稀醇系樹脂之膜胚材之情形更格外地薄的聚乙烯醇層之 優點。 然而’藉上述歷來之方法所得之偏光板使用於液晶顯 示裝置時，於液晶顯示裝置之對比未必充分。 在此，本發明之目的係提供於液晶顯示裝置中可賦予 3 322966 201142381 用之偏光性積層膜及 良好之對比度之薄型偏光板和其所利 該等之製造方法。 用皂們:入研究之結果，上述歷來之方法中，使 樹p二，。π G莫耳％之況用聚乙_系樹脂而形成 使用曰偏光板=之偏光板之偏光性能不充分，該結果發現 板之料顯錢置之對比度未料充分而達成 【發明内容】 本發明係包含下述者。 [2-種料性積層膜’具備基㈣和形成於基材膜之其 =面之偏光子層，偏光子層厚度為以下，由經定 樹二附:色性色素之聚乙稀醇系樹脂所形成，聚乙_系 率d化二糸99.0莫耳％以下，發光因子修正單體穿透 上且發光因子修正偏光度（Py)係99.9% $ ^光子層係叫過5倍之延伸倍率㈣軸延伸之⑴ 斤5己载之偏光性積層膜。 用於偏光板之⑴或[2]所記載之偏光性積層膜。 偏光子層係經由底漆層而形成於基材膜 1]至[3]^-相記狀偏級制膜。 5] -種偏光板’具備保制和形成於保軸之其 =光子層’偏光子層厚度為以下，由蚊向吸附 色素之聚乙埽醇系樹脂所形成，聚乙歸醇系樹脂之 匕度係99.0莫耳％以下，發光因子修正單體穿透率㈤ 322966 4 201142381 係4〇%以上且發光因子修正偏光度（Py)係99. 9%以上。 []偏光子層係經由黏著劑層或黏接劑層而形成於保護膜 之其中-面之[5]所記載之偏光板。 [7] 偏光子層係以超過5倍之延伸倍率而單軸延伸之 或[6]所記載之偏光板。 [8] [1]至[4]之任一者所記載之偏光性積層膜之製造方 f 包含：於基材膜之其中一面形成由皂化度為99 〇莫耳 %以下之聚乙烯醇系樹脂所成之樹脂層而得到積層膜之樹 月曰層$成步驟，積層膜以超過5倍之延伸倍率進行單軸延 伸而得到延伸膜之延伸步驟；以及延伸膜之該樹脂層以二 色丨生色素染色而形成偏光子層之染色步驟。 [][5]至[8]之任一者所記載之偏光板之製造方法，偏光 板之製造方法係包含：於基材膜之其中—面形成由息化度 為99.0莫耳％以下之聚乙烯醇系樹脂所成之樹脂層而得 到積層膜之樹脂層形成步驟；將積層膜以超過5倍之延伸 倍率進行單軸延伸而得到延伸膜之延伸步驟；將延伸膜之 樹脂層以二色性色素染色形成偏光子層，而得到偏光性積 層膜之染色步驟；與偏光性積層膜中偏光子層之基材膜側 之面為相反側之面貼合保護膜而得到多層膜之貼合步驟； 以及自多層膜剝離基材膜之剝離步驟。 依照本發明，可提供在液晶顯示裝置中，可賦予良好 對比度顯示之薄型偏光板及其所利用之偏光性積層膜。 又，依照本發明之偏光板或偏光性積層膜之製造方法，藉 由於基材膜表面形成包括由皂化度為99.0莫耳％以下之 322966 5 201142381 二稀醇系樹丨日所成之樹丨旨層，以超過5倍之延伸倍率進 行单轴延伸’而在後段之染色步驟中得到良好的染色速度 之效果。 【實施方式】 以下’參照圖式’詳細說明關於本發明之較佳實施型 態。 〈偏光性積層膜之構成〉 第1圖係表不本發明之偏光性積層膜的基本的層結構 之一例之概要❹圖。偏紐積層膜H)係具備基材膜11 和形成於基材膜U之其中—面之偏光子層…偏光子層 厚度為lG//m以下’由經定向吸附二色性色素之聚乙稀 醇系树月日所形成。聚乙烯醇系樹脂之I化度係99. q莫耳％ 以下。 料㈣㈣10之發光因子修正單體穿透率㈤係 40/6以上且發光因子修正偏光度（py)係⑽.以上。偏光 性積層膜10係可⑽為偏光板。偏紐積層膜1()係因具 有如上述之光學特性’在偏光性積層膜iQ用於液晶顯示裝 置之偏光板時’可得到具有良好之對比度之顯示。 再者’發光因子修正單體穿透率（Ty)係於波長範圍 380nm至780nm中’求出偏光性積層膜或偏光板之md穿透 率和TD穿透率’基於下述所示之式⑴而算出各波長中之 單體穿透率’再以JIS z 8701之2度視野（C光源）進行發 光因子修正而可得求得。 又’發光因子修正偏光度（Py)係藉由和前述同樣求出 6 322966 201142381 MD穿透率和TD穿透率，基於下述表示之式⑵而算出各波 長中之偏光度（％)’和前述同樣施行發光因子修正而可求 得。 穿透率」係從格蘭-湯姆森棱鏡（Glan-Thompson pnsnO出來的偏光方向與偏光板樣本之透射軸平行時的穿 透率，於式⑴、式（2)中係表示為「MD」。又，「TD穿透率」 係從格蘭-湯姆森稜鏡出來的偏光方向與偏光板樣本之透 射轴正父時的穿透率’於式⑴、式⑵中係表示為「TD」。 MD穿透率、TD穿透率皆可於附有積分球之分光光度計測 定。 單體穿透率⑻=(Md+TDV2 ...式⑴ 偏光度（/)-’ {TD)/(MD + TD)丨X⑽…式⑵ 以下，詳細說明關於各構成要素。 [基材膜] 作為本發明所用之基材膜11之材料，例如，可用優異 於透明性、機械強度、熱安定性、延伸性等之熱可塑性樹 月曰。作為如此之熱可塑性樹脂之具體例，可例舉三乙酸纖 維素等纖維素_緒脂、聚㈣樹脂、聚1«系樹脂、聚 2树脂、聚碳酸醋系樹脂、聚醯胺系樹脂、聚醯亞胺系 树月曰聚烯煃系樹脂、（甲基）丙烯酸系樹脂、環狀聚烯烴 t樹月曰（降攻烯系樹脂）、聚芳香酯系樹脂、聚笨乙烯系樹 脂、聚乙稀醇系樹脂及該等之混合物等。 _作為基材膜之材料，較佳係含有纖維素酯系樹脂、聚 烯烴系樹脂、環狀聚烯烴系樹脂及（甲基）丙烯酸系樹脂所 7 322966 201142381 成之群組中選擇之至少任一者。 纖維素醋系樹脂係纖維素和脂肪酸之醋。作為如此之 纖維素料樹脂之具體例，可例舉三乙酸纖維素、二乙酸 纖維素、二丙酸纖維素、m維料。 數製中’特佳係三乙酸纖維素。三乙酸纖維素有多 ’而亦有利於取得容綠和成本。作為三乙酸 纖維素市售品之例子’可例舉FUmAC(註冊商標加斷舍 t軟片（株）製）、随TAC(註冊商標）™_(富士軟片（株田) 製）、FUJITAC(註冊商標）TD8〇uz(富士軟片（株）製）、 FUJITAC(S冊商標）τ_ζ(富士軟片（株）製）、謂娜（柯 尼卡美能達_鮮⑻製）、謂γ(柯斜美能 學（株）製）等。 作為聚烯烴系樹脂，可例舉聚乙稀、聚丙稀等。用聚 丙烯所成之基材膜時，容易安定而高倍率的延伸而較佳。 作為環狀聚烯烴系樹脂，較佳可用降莰烯系樹脂。 環狀聚烯烴系樹脂係以環狀烯烴作為聚合單位所聚合 之樹脂的總稱’例如，可例舉記載於日本專利jpH〇卜 240517-A、JPH03-14882-A、JPH03-122137-A 等之樹脂等。 作為具體例，可例舉環狀烯烴之開環（共）聚合物、環狀烯 經之加成聚合物，環狀稀烴和乙烯、丙稀等α _婦煙與其共 聚合物（代表性為隨機共聚物）及該等經不飽和竣酸和其衍 生物改質之接枝共聚物以及該等之氫化物等。作為環狀烯 烴之具體例，可例舉降莰烯系單體。 作為環狀聚烯烴系樹脂有多種製品市售。作為具體 8 322966 201142381 :冊商標）（Ti⑽a社製）、art〇n(註冊 商W⑽（株）1)、ZE◦舰（註冊商標 冊 =TEX(註冊商標）（™⑷、戰註冊株商） 標）（三井化學（株）製）。 册商 作為（甲基）丙烯酸系樹脂，可採用任意而適宜之（ 丙烯酸系樹脂。例如，可例舉聚曱基丙烯酸甲s旨等聚（曱^ 丙烯酸醋、曱基丙烯酸甲酯_(曱基)丙烯酸共聚合物、曱土 丙稀甲基)丙輪旨共聚合物、甲基丙烯酸甲‘ 丙烯酸醋-(甲基）丙稀酸共聚合物、（曱基）丙婦酸甲輯 乙烯共聚合物（MS樹脂等）、具脂環族烴基聚合物（例如 曱基丙烯酸曱醋-曱基丙烯酸環己醋共聚合物、甲基丙烯酸 甲酯-(甲基）丙烯酸降莰基酯共聚合物等）。 久 較佳可例舉聚（甲基）丙稀酸甲@旨等聚（甲基）丙歸酸 C1-6烷基酯。作為（曱基）丙烯酸系樹脂，更佳可用以甲^ 丙，酸甲醋為主成分（5〇至⑽重量％，較佳係7()至^ 重量％)之甲基丙烯酸甲酯系樹脂。 九基材膜11，除了上述熱可塑性樹脂之外，亦可添加任 思而適宜之添加劑。作為如此之添加劑，例如，可例舉紫 外線吸收劑、抗氧化劑、滑劑、可塑劑、離型劑、抗著色 劑、難燃劑、核劑、抗靜電劑、顏料及著色劑等。基材膜 〇中之上述所例舉之熱可塑性樹脂含量較佳係50至100重量 % ’更佳係50至99重量％ ’再更佳係6〇至98重量％里 特佳係70至97重量％。基材膜中之熱可塑性樹脂含^未 、 重昼^時，熱可塑性樹脂原本具有之高透明性等有表 201142381 現不充分之疑慮。 基材膜〗〗之厚度，雖可適宜地決定， 操縱性:作業性來看，較佳係1至、 〆行疋佳係5至200"m。基材膜 至150#ηι。 〈厚度，最佳係5 基材膜11係為了提昇與偏光子層 六 可至少於偏光子層12之形成侧之表 =，而亦 處理、火域理等。又，為了提昇^施广電暈處理、電聚 11 JS 19 密者性，亦可於基材膜 「偏;^層12之形成側之表面形成底漆層等薄層。 [偏光子層] 而。偏光子層12係於單軸延伸之聚乙烯醇系樹 ;、:=吸:二色性色素者。作為聚乙締醇系樹脂，可用 浐二乙烯醋系樹脂經急化者。作為聚乙酸乙烯醋系樹 乙酸乙烯酉旨的同元聚合物之聚乙酸乙稀醋以外， 與可共聚合之其他單體之共聚合物 為與乙酸乙烯醋可共聚合之其他單體，例如可例 °純類、歸烴類、乙_類、不飽和續酸類、具 頁紅基之丙烯醯胺類等。 ，乙:If醇系樹脂之皂化度係99· G莫耳％以下。本發明 理由'為使用皂化度99.Q莫耳％以下之聚乙料系樹脂之 染色速2為I實施超過5倍之單轴延伸時亦可維持一定的 、又，藉此，有良好效率地生產偏光性能高之薄型偏 y積層膜之優點。另—方面，使用皂化度超過99.0莫耳 。之聚乙烯醇系樹脂時，染色速度顯著變慢，有無法得到 10 322966 201142381 光性積層膜之情況…發生製 过Τ荔要通之數倍時間之不佳情況。 衣 更佳繼旨之4化度較㈣、9G莫耳％以上， 水性等之強度不充分之情形。 有才 此處之皂化度係聚乙稀醇系樹脂原料之聚乙酸 系樹脂所含之乙酸基藉息化 烯酉曰 ^ ^ ^ 雙化成羥基之比例以單 位比（莫耳/〇表示者，為下述式所 於JISK 6726(1994)之方法求得。 數值。了依規定 皂化f (莫耳％) = (喊數Η(絲數+乙酸基數）χ⑽ 皂化度.表示經基之比例越高，換言之即表示阻 礙^化之乙酸基之比例低。又，本發明所用之聚乙烯醇 係4化度99. G莫耳％以下則無特別限定，亦可係部 W質之改質聚乙彿醇。例如，可例舉聚乙稀醇系樹脂經 乙稀、丙稀等稀煙’丙稀酸、甲基丙烯酸、巴豆酸等不飽 和減，不飽和紐之烧基醋、丙_胺等而改質幾個百 分比程度者等。聚乙烯醇系樹脂之平均聚合度亦無特別限 定，較佳係100至10_，更佳係議至1〇_。 作為具有如此特性之聚乙烯醇系樹脂，例如可樂麗（株） 製之PVM24(皂化度98.0 i 99·〇莫耳％)、pvA117(息化 度98. 0至99. 0莫耳％)、PVA624(皂化度95. 〇至96 〇莫 耳％)及PVA617C皂化度94. 5至95.5莫耳％);例如曰本 合成化學工業（株）製之AH-26(皂化度97.0至98.8莫耳 %)、AH-22(皂化度97. 5至98. 5莫耳％)、NH-18(皂化度 322966 11 201142381 98. 0至99.0莫耳％)及N_3〇〇(皂化度98. 〇至99 〇莫耳 %);例如日本VAM&POVAL(株）製之JF-17(皂化度98. 〇至 99.0莫耳％)、jF-17l(皂化度98 〇至99 〇莫耳％)及 JF-20(皂化度98.〇至99 G莫耳％)等，可適用於本發明中。 該聚乙烯醇系樹脂經製膜者係構成本發明之偏光子層 °聚乙騎祕脂之製財法無特別限雖可經公知 方法製膜，但從易得到期望之厚度的偏光子層12來看%交 佳係將聚乙烯醇系樹脂溶液塗佈於基材膜uji而製膜。偏 光子層12較佳係超過5倍，更佳係以超過5倍且倍以 下之延伸倍率進行單軸延伸。 ° 偏光子層12係於如上述之聚乙稀醇系樹脂定向吸附 了色性色素。偏光子層12之厚度係1Q/im以下，較佳係 以下。藉由讓偏光子層12之厚度作為1Q/Zm 成薄型偏級積層膜。 〈偏光板之構成〉 第2圖係表示本發明之偏光板的基本的層結構之 之概要剖面®。偏敍13係具備保護膜14 =14之其中一面之偏光子層12。偏光子層12 = 1〇心以下，自Μ吸附二色性色素之聚乙_系樹脂所 形成。聚乙烯醇系樹脂之皂化度係99· 〇莫耳％以下 偏光板13之發光因子修正單體穿透率（Ty)係4_以 上且發光因子修正偏光度（Py.)# 99 9%以上 可用作為液晶顯示裝置之偏光板。偏光板13藉 上述 之光學特性，而偏光板13用作為液晶顯示裝置之偏光板時 322966 12 201142381 可得到良好之對比度之顯示。 明示22中’保細U和偏光子層12係經由例如未 ==素著劑層_劑_ [保護膜] 可為護臈14 ’可為不具光學機能之單純保護膜，亦 差膜和提昇亮度膜這類光學機能之保護膜。 作為保相14之材料雖無特別限 =煙系樹_'三乙酸織維素系樹脂棋、二 樹賴成U輯料㈣_，聚對笨ί 曱酉文乙一酉曰、聚萘二曱酸乙二酯、 2賴成之聚㈣樹脂膜，聚碳_系_膜、 系=膜、聚㈣緒脂料，時來更廣泛地應用於本 領域中之獏。 作為環狀聚婦烴系樹脂，亦可適用適宜之市售品，例 如T_s(註冊商標）（Ticona社製）、咖Ν(註冊商 標）USR(株）製）、ZE〇N〇R(註冊商標）（曰本ζ删（株）製）、 ΖΕ0ΝΕΧ(註冊商標）（日本誦（株）製“亂（註冊商標）（三 井化_製)。製膜如此之環狀聚稀煙系樹脂而作為膜 時’可適用溶_造法、溶融押出法等公知方法。又，亦 可^⑽A(註冊商標）（積水化學工業（株）製）、麵㈤ 冊商標）（積水化學工業（株）製）、_ (株）製）等預先«之環狀-市售品。 322966 13 201142381 環狀聚烴烯系樹脂膜可為單轴延伸或雙軸延伸者。藉 延伸而可於環狀聚烯烴系樹脂膜賦予任意之相位差值。延 伸通常係連續施行的同時捲出膜輥（filmr〇u)，於加熱爐 中，以輥之進行方向、與該進行方向之垂直方向或其兩方 延伸 、爐之溫度，通常係從接近環狀聚烯烴系樹脂之 玻璃轉移度至玻璃轉移溫度+1〇〇為止之範圍。延伸倍率 於單方向通常係1. 1至6倍，較佳係1. 1至3. 5倍。 /哀狀聚稀烴系樹脂膜…般而言因表面活性差，而較 佳係於與偏光膜黏接之表面施以電漿處理、電暈處理、紫 外線…射處理、火焰（flame)處理、皂化處理等表面處理。 其中，可適於比較容易實施之電漿處理、電暈處理。 作為乙酸纖維素系樹脂膜，亦可適用適宜之市售品， 例如fujITAC(註冊商標）τ_(富士軟片（株）製）、顺tac =3)T_(f 士軟製）、_AC(註冊商標） 士軟Μ株）製）、順值（註冊商標）TD40UZ(富 =:)製)、KC8漏(柯尼卡美能達精密光學(株) 製）KC4UY(柯尼卡美能達精密光學（株）製）。 升』=維素系樹脂膜之表面，為了改良視角特性亦可 日層4。又’為賦予相位差而亦可為乙_維素系 者。乙酸纖維素系樹脂膜，為了提高與偏光 ’通常施以皂化處理。作為息化處理，可採用 汉/貝於氫氧化鈉和氫氧化鉀類之鹼性水溶液中之方法。 亦可於上叙保制14表面形成 。 反射層等光學層。於保護膜表面形成此等之層光; 322966 14 201142381 無特別限定，可用公知方法β 保護膜14之厚度係依薄型化之要求而以盡可能薄者 較佳，較佳係88㈣以下，更佳係48_以下。反之，因 為過薄則強度會降低而劣於加卫性，較佳係^以上。 [偏光子層] 偏光子層12係可與上述偏光性積制10之偏光子斧 12同樣構成。 曰 [黏著劑層] 保護膜14和偏光子層12之貼合狀黏著劑通常係丙 烯酸系樹脂、苯乙_樹脂、聚錢系樹脂等作為基質聚 合物（base P〇lymer),於此，加入異氛酸醋化合物、環氧 化合物“丫環丙統合物等交聯劑之組成物而成。 亦可再含有微粒子作為顯*紐雜之黏著劑層。 雖黏著劑層之厚度較佳係】 讀㈣1至卿m’但在不損加工 性、而f性之特性之範_，以薄塗較佳，更佳係3至25 :二則具有良好加工性且於壓抑偏光膜之尺 變化上亦為適宜厚度。黏㈣層未達丨㈣時則黏著性降 低’而超過40_咖容易發生轉劑溢出等不佳情況。 藉黏著劑而貼合保護膜14於料子層12之方法中， 亦可於保護膜u面設置黏著劑層後，貼合於偏光子層12， =可於偏光子層12表面設置黏著劑層後，於此貼合保護膜 14 0 ^綱形財法崎龍亦可將含有上述以基 質1物為主之各成分溶液㈣於保制Η面或偏光子 322966 15 2U1142381201142381 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a polarizing laminated film, a polarizing plate, and the like. [Prior Art] A polarizing plate is widely used as a polarizing supply element or the like in a display device such as a liquid crystal display device. As the polarizing plate, a protective film made of cellulose triacetate has been used for the polarizing film formed of a polyvinyl alcohol resin. However, in recent years, the development of mobile devices such as notebook computers and mobile phones that are accompanied by liquid crystal display devices has been developed. Etc., and requires thin and lightweight. A method for producing such a thin polarizing plate has been proposed in which a polyvinyl alcohol-based resin layer is provided on the surface of a base film, and then stretched and then dyed to obtain a polarizing laminated film having a polarizing layer, which is directly used as a polarizing film. The method of using a protective film on the polarizing laminated film and peeling off the base film is used as a polarizing plate (for example, refer to jP2〇〇〇_338329-A, JP2009-93074-A, JP2009-98653-A and JP2003-43257-A). According to the above-mentioned conventional method, a polarizing plate obtained by forming a polyvinyl alcohol-based resin layer on the surface of a base film is formed by directly applying an aqueous solution of a polyvinyl alcohol-based resin onto the surface of the base film to form a resin layer. There is an advantage that a polyvinyl alcohol layer which is extraordinarily thinner than the case of a film seed material of a polyethylene glycol-based resin is obtained. However, when the polarizing plate obtained by the above conventional method is used in a liquid crystal display device, the comparison with the liquid crystal display device is not necessarily sufficient. Here, the object of the present invention is to provide a thin polarizing plate which can impart a polarizing laminated film for use in 3,322,966, 201142,381 and a good contrast in a liquid crystal display device, and a manufacturing method therefor. Using soaps: In the results of the research, in the above-mentioned methods, the tree p is two. In the case of the π G mole %, the polarizing performance of the polarizing plate using the 曰 polarizing plate = is insufficient, and the result is that the contrast of the material of the board is not sufficient, and the invention is achieved. The invention includes the following. The [2-seed material laminated film] has a base (4) and a polarizing sub-layer formed on the surface of the base film, and the thickness of the polarizing layer is below, and is a polyethylene glycol of the coloring pigment. Formed by resin, the poly-ethylation rate d is less than 99.0 mol%, the luminescence factor corrects the monomer penetration and the luminescence factor corrected polarization (Py) is 99.9% $ ^photonic layer system is called 5 times extension Magnification (four) axis extension of (1) jin 5 own polarizing laminated film. The polarizing laminated film described in (1) or [2] of the polarizing plate. The polarizing sub-layer is formed on the substrate film 1] to [3]^-phase-like gradation film via the primer layer. 5] - The polarizing plate 'has been formed and protected from the axis of the photonic layer', and the thickness of the photonic layer is less than or equal to the thickness of the photopolymer layer, which is formed by the mosquito to the polyether alcohol resin which adsorbs the pigment. The degree of the system is 99.0 mol% or less, and the luminescence factor corrects the monomer transmittance (5) 322966 4 201142381 is 4% or more and the luminescence factor corrected polarization (Py) is 99.9% or more. [] The polarizer layer is formed on the surface of the protective film [5] via an adhesive layer or an adhesive layer. [7] The polarizer layer is a uniaxially stretched or polarized plate described in [6] at a stretching ratio of more than 5 times. [8] The production method of the polarizing laminated film described in any one of [1] to [4], wherein a polyvinyl alcohol having a saponification degree of 99% by mole or less is formed on one surface of the base film. a resin layer formed of a resin to obtain a step of forming a laminated film; the laminated film is uniaxially stretched at a stretching ratio of more than 5 times to obtain an extending step of the stretched film; and the resin layer of the stretched film is colored A dyeing step of dyeing the pigment to form a polarizing layer. The method for producing a polarizing plate according to any one of [5] to [8], wherein the method for producing a polarizing plate comprises: forming a surface of the base film by a degree of recombination of 99.0% or less; a resin layer forming step of obtaining a laminated film by a resin layer formed of a polyvinyl alcohol-based resin; a step of extending the laminated film by uniaxial stretching at a stretching ratio of more than 5 times to obtain a stretching film; and a resin layer of the extending film The coloring dye is dyed to form a polarizing layer, and a polarizing laminated film is dyed. The protective film is bonded to the surface on the opposite side of the substrate film side of the polarizing layer in the polarizing laminated film to obtain a multilayer film. And a step of peeling off the substrate film from the multilayer film. According to the present invention, it is possible to provide a thin polarizing plate which can provide a good contrast display in a liquid crystal display device and a polarizing laminated film used therefor. Further, according to the method for producing a polarizing plate or a polarizing laminated film of the present invention, the surface of the substrate film is formed by a tree comprising 322966 5 201142381 dibasic alcohol tree saponin having a degree of saponification of 99.0 mol% or less. The purpose of the layer is to perform uniaxial stretching at a stretching ratio of more than 5 times and to obtain a good dyeing speed in the dyeing step of the latter stage. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. <Configuration of polarizing laminated film> Fig. 1 is a schematic view showing an example of a basic layer structure of the polarizing laminated film of the present invention. The partial-layer laminated film H) is provided with a base film 11 and a polarizing sub-layer formed on the surface of the base film U. The polarizing layer has a thickness of 1 G//m or less. The thin alcohol tree is formed on the moon. The degree of chemical conversion of the polyvinyl alcohol-based resin is 99. q mol% or less. (4) (4) 10 luminescence factor correction monomer penetration rate (five) 40/6 or more and luminescence factor correction polarization (py) system (10). The polarizing laminated film 10 can be (10) a polarizing plate. The polarizing film 1 () has a display having a good contrast because it has the optical characteristics as described above when the polarizing laminated film iQ is used for a polarizing plate of a liquid crystal display device. Further, the 'light-emitting factor correction monomer transmittance (Ty) is in the wavelength range of 380 nm to 780 nm, 'the md transmittance and the TD transmittance of the polarizing laminated film or the polarizing plate are determined' based on the following formula (1) Calculating the monomer transmittance in each wavelength' is obtained by correcting the luminescence factor by a 2 degree field of view (C light source) of JIS z 8701. Further, the 'luminescence factor correction degree of polarization (Py) is obtained by calculating the 6 322966 201142381 MD transmittance and the TD transmittance as described above, and calculating the degree of polarization (%) in each wavelength based on the formula (2) shown below. The illuminance factor correction can be performed in the same manner as described above. The transmittance is the transmittance when the polarization direction of the Glan-Thompson pnsnO is parallel to the transmission axis of the polarizing plate sample, and is expressed as "MD" in the equations (1) and (2). In addition, the "TD penetration rate" is the transmittance of the polarized direction from Glan Thomson and the transmission axis of the polarizing plate sample. In the equations (1) and (2), it is expressed as "TD". Both the MD transmittance and the TD transmittance can be measured by a spectrophotometer with an integrating sphere. Monomer penetration rate (8) = (Md + TDV2 ... (1) Polarization degree (/) - ' {TD) / (MD + TD) 丨X (10) (2) Hereinafter, each component is described in detail. [Base film] As a material of the base film 11 used in the present invention, for example, it is excellent in transparency, mechanical strength, and thermal stability. And the thermoplastic resin such as extensibility, etc. As a specific example of such a thermoplastic resin, cellulose such as cellulose triacetate, poly(tetra) resin, poly-1 resin, poly 2 resin, and poly Carbonic acid vinegar resin, polyamido resin, polyamidene eucalyptus resin, (meth)acrylic tree a cyclic polyolefin t-tree 曰 曰 (a olefin-based resin), a polyarylate-based resin, a polystyrene-based resin, a polyethylene-based resin, a mixture thereof, etc. _ as a material of a base film, It is preferable to contain at least one selected from the group consisting of a cellulose ester resin, a polyolefin resin, a cyclic polyolefin resin, and a (meth)acrylic resin 7 322966 201142381. Cellulose vinegar resin The vinegar of cellulose and fatty acid. Specific examples of such a cellulose resin may, for example, be cellulose triacetate, cellulose diacetate, cellulose dipropionate, or m-dimensional material. The cellulose acetate. The cellulose triacetate has a large amount, and it is also advantageous for obtaining the green color and the cost. As an example of the commercial product of the cellulose triacetate, a FUmAC (registered trademark plus a broken film) can be exemplified. With TAC (registered trademark) TM_ (Fuji Film Co., Ltd.), FUJITAC (registered trademark) TD8〇uz (made by Fujifilm Co., Ltd.), FUJITAC (S-branded trademark) τ_ζ (made by Fujifilm Co., Ltd.) , said Na (Konica Minolta _ fresh (8) system), said γ ( The polyolefin resin may, for example, be polyethylene, polypropylene or the like. When a base film made of polypropylene is used, it is easy to stabilize and extend at a high magnification. The cyclic polyolefin-based resin is preferably a decene-based resin. The cyclic polyolefin-based resin is a general term for a resin obtained by polymerizing a cyclic olefin as a polymerization unit. For example, it can be exemplified by the Japanese patent jpH 〇 Resins such as 240517-A, JPH03-14882-A, JPH03-122137-A, etc. As a specific example, a ring-opening (co)polymer of a cyclic olefin, an addition polymer of a cyclic olefin, and a ring may be mentioned. And a copolymer of ethylene and propylene, such as ethylene and propylene, and a copolymer thereof (represented as a random copolymer), and modified grafts of the unsaturated decanoic acid and derivatives thereof, and the hydrides thereof Wait. Specific examples of the cyclic olefin include a norbornene-based monomer. A variety of products are commercially available as the cyclic polyolefin resin. As a specific 8 322966 201142381 (registered trademark) (Ti (10) a company), art〇n (registrar W (10) Co., Ltd. 1), ZE◦ (registered trademark book = TEX (registered trademark) (TM (4), war registered company) Standard) (Mitsui Chemical Co., Ltd.). The (meth)acrylic resin may be any suitable and suitable (acrylic resin). For example, polyacrylic acid methacrylate or the like may be exemplified. Acrylic copolymer, acrylonitrile methyl) propylene-based copolymer, methacrylic acid methyl acrylate acrylate-(meth) acrylic acid copolymer, (mercapto) acetoacetate Copolymer (MS resin, etc.), alicyclic hydrocarbon-based polymer (for example, decyl acrylate hydrazine-mercapto acrylate cyclohexane vinegar copolymer, methyl methacrylate - (meth) acrylate decyl ester For example, a poly(methyl)propionic acid C1-6 alkyl ester such as poly(methyl)acrylic acid is preferred for a long period of time. It is more preferably used as a (fluorenyl) acrylic resin. a methyl methacrylate-based resin containing methyl propyl acrylate and acid methyl vinegar as a main component (5 Å to (10)% by weight, preferably 7 (% to 5% by weight). Nine base film 11 except the above thermoplastic resin In addition, an additive suitable for use as a suitable additive may be added. As such an additive, for example, ultraviolet rays may be exemplified. Absorbent, antioxidant, slip agent, plasticizer, release agent, anti-coloring agent, flame retardant, nucleating agent, antistatic agent, pigment and coloring agent, etc. The above-mentioned thermoplasticity in the substrate film The resin content is preferably from 50 to 100% by weight, more preferably from 50 to 99% by weight, and still more preferably from 6 to 98% by weight, based on 70% to 97% by weight of the Riga. The thermoplastic resin in the substrate film contains ^ When the temperature is not increased, the thermoplastic resin originally has high transparency, etc., and 201142381 is not sufficient. The thickness of the substrate film can be appropriately determined, and the maneuverability: workability is preferred. 1 to, 〆行疋佳系5 to 200" m. base film to 150# η. <thickness, the best system 5 substrate film 11 in order to enhance the polarizing layer 6 can be at least the polarizing sub-layer 12 Forming the side of the table =, but also processing, fire domain, etc. In addition, in order to improve the ^ Shi Guang corona treatment, electropolymerization 11 JS 19 secret, can also be on the base film "bias; ^ layer 12 formation side A thin layer such as a primer layer is formed on the surface. [Polarized photolayer] The polarizing sublayer 12 is a uniaxially stretched polyvinyl alcohol tree; : A dichroic dye. As a polyethylene glycol-based resin, it can be used as a polyethylene diacetate resin, and it is used as a polyvinyl acetate vinegar-based vinyl acetate-based homopolymer. The copolymer with other monomers copolymerizable may be other monomers copolymerizable with vinyl acetate, for example, pure, hydrocarbon, B-, unsaturated acid, and red-based The saponification degree of the acrylamide is equal to or less than 99% G mole %. The reason of the present invention is 'the dyeing speed of the polyethylenic resin having a saponification degree of 99.Q mol% or less. 2 is also capable of maintaining a certain uniaxial extension of more than 5 times, and further, it is advantageous in producing a thin y-layer film having high polarization performance with high efficiency. On the other hand, the degree of saponification is more than 99.0 mol. In the case of the polyvinyl alcohol-based resin, the dyeing speed is remarkably slow, and it is impossible to obtain the 10 322 966 201142381 optical laminated film. The clothing is better than the fourth degree (4), 9G% or more, and the strength of water is not sufficient. The saponification degree of the polyacetic acid resin which is the saponification degree of the polyacetic acid resin is the acetylation group of the polyacetic acid resin, and the ratio of the hydroxy group to the hydroxyl group is expressed in units of ratio (mol/〇, It is obtained by the method of JISK 6726 (1994) according to the following formula: Numerically, saponified f (mol%) = (sound number 丝 (number of filaments + number of acetate groups) χ (10) degree of saponification. It is high, in other words, it means that the ratio of the acetic acid group which is inhibited is low. Moreover, the degree of the degree of the polyvinyl alcohol system used in the present invention is 99. G mole% or less is not particularly limited, and it is also possible to modify the mass of the product. Ethyl alcohol, for example, may be exemplified by a polyethylene-based resin such as ethylene, propylene or the like, which is unsaturated, such as acrylic acid, methacrylic acid, crotonic acid, etc., unsaturated, non-saturated vinegar, and propylene. The degree of polymerization of the polyvinyl alcohol-based resin is not particularly limited, and is preferably 100 to 10 Å, more preferably 1 to _ as a polyvinyl alcohol having such characteristics. Resin, for example, PVM24 (saponification degree 98.0 i 99·〇 mol%) manufactured by Kuraray Co., Ltd., pvA117 (intermediation degree 98. 0)至至99. 0摩尔%), PVA624 (saponification degree 95. 〇 to 96 〇 mol%) and PVA617C saponification degree 94.5 to 95.5 mol%); for example, AH-made by Sakamoto Synthetic Chemical Industry Co., Ltd. 26 (saponification degree: 97.0 to 98.8 mol%), AH-22 (saponification degree: 97.5 to 98. 5 mol%), NH-18 (saponification degree 322966 11 201142381 98. 0 to 99.0 mol%) and N_3 〇〇 (saponification degree 98. 〇 to 99 〇 mol%); for example, JF-17 (saponification degree 98. 〇 to 99.0 mol%) manufactured by VAM & POVAL Co., Ltd., Japan, jF-17l (saponification degree 98 〇) It can be suitably used in the present invention, such as 99% by mole of )%) and JF-20 (saponification degree of 98. 〇 to 99 G mole%). The polyvinyl alcohol-based resin forms a polarizer of the present invention. The method for producing a layer of polyether is not limited, although a film can be formed by a known method, but from the photopositor layer 12 which is easy to obtain a desired thickness, the polyvinyl alcohol resin solution is applied to the solution. The base film Uji is formed into a film. The polarizing layer 12 is preferably more than 5 times, more preferably uniaxially stretched at a stretching ratio of more than 5 times and less. ° The polarizing sub-layer 12 is attached to the polyethylene as described above. The alcohol resin is oriented to adsorb the coloring pigment. The thickness of the polarizing sub-layer 12 is 1Q/im or less, preferably less. The thickness of the polarizing sub-layer 12 is made into a thin-type partial-layer laminated film as 1Q/Zm. <Configuration of polarizing plate> Fig. 2 shows the present invention A schematic section of the basic layer structure of the polarizing plate. The partial phase 13 has a polarizing layer 12 on one side of the protective film 14 = 14. The polarizing sub-layer 12 = 1 below the core, self-adhesively adsorbing the dichroic pigment It is formed by a polyethylene resin. The saponification degree of the polyvinyl alcohol-based resin is 99% 〇mol%, and the illuminance factor of the polarizing plate 13 is corrected. The monomer transmittance (Ty) is 4 or more and the luminescence factor corrected polarization (Py.) # 99 9% or more It can be used as a polarizing plate for a liquid crystal display device. The polarizing plate 13 exhibits a good contrast display when the polarizing plate 13 is used as a polarizing plate for a liquid crystal display device by the optical characteristics described above, 322966 12 201142381. In the description 22, the 'preservative U and the polarizing sub-layer 12 can be a simple protective film which does not have an optical function, for example, is not a ===layer layer_agent_[protective film], and is also a film and lifting A protective film of optical function such as a brightness film. As the material of the phase-preserving 14 is not particularly limited = the tobacco tree _'triacetic acid woven resin resin, two trees Lai Cheng U material (four) _, poly pair ί 曱酉 曱酉 乙 酉曰 酉曰, polynaphthalene dicarboxylic acid Ethylene diester, 2 lysine poly(tetra) resin film, polycarbon _ system _ film, system = film, poly (tetra) resin, is more widely used in the field. As a cyclic polysulfonate-based resin, a commercially available product such as T_s (registered trademark) (manufactured by Ticona Co., Ltd.), curry (registered trademark) manufactured by USR Co., Ltd., ZE〇N〇R (registered) may be used. (trademark) (曰本ζ除制制制制制制), ΖΕ0ΝΕΧ (registered trademark) ("Korea Co., Ltd.", "Chaos (registered trademark) (Mitsui Chemicals Co., Ltd.). In the case of a film, a known method such as a solvent-based method or a melt-extrusion method can be used. In addition, it can also be a (10) A (registered trademark) (made by Sekisui Chemical Co., Ltd.) and a surface (five) trademark (Sumizu Chemical Industry Co., Ltd.)环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环 环The olefin-based resin film is provided with an arbitrary phase difference. The stretching is usually performed while continuously performing the film roll, and in the heating furnace, the direction of the roll, the direction perpendicular to the direction of progress, or both The temperature of the extension and the furnace is usually changed from a glass close to the cyclic polyolefin resin. The ratio of the extent to the glass transition temperature of +1 。. The stretching ratio is usually 1.1 to 6 times in a single direction, preferably 1. 1 to 3.5 times. In view of the poor surface activity, it is preferred to apply a surface treatment such as plasma treatment, corona treatment, ultraviolet radiation treatment, flame treatment, saponification treatment, etc. to the surface to which the polarizing film is adhered. In the case of the cellulose acetate-based resin film, a commercially available product can be used, for example, fujITAC (registered trademark) τ_ (made by Fujifilm Co., Ltd.), and cis tac = 3 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) KC4UY (Konica Minolta Precision Optics Co., Ltd.). 升 = = the surface of the resin film, in order to improve the viewing angle characteristics, the layer 4 can also be used to give the phase difference. The cellulose acetate resin film is usually subjected to saponification treatment in order to improve the "polarization". The method can be used in the alkaline aqueous solution of sodium hydroxide and potassium hydroxide. It can also be formed on the surface of the upper surface of the protective layer 14. An optical layer such as a reflective layer is formed on the surface of the protective film. Light; 322966 14 201142381 is not particularly limited, and the thickness of the protective film 14 can be as thin as possible according to the requirements of thinning, preferably 88 (four) or less, more preferably 48_ or less. The thinness is lowered and the strength is inferior to that of the affixing property. Preferably, the polarizing sublayer 12 is formed similarly to the polarizing axe 12 of the polarizing product 10 described above. 曰 [Adhesive layer] The adhesive agent for the protective film 14 and the polarizing sub-layer 12 is usually an acrylic resin, a styrene resin, a poly-resin resin or the like as a base polymer, and an oleic acid compound is added thereto. The epoxy compound is a composition of a crosslinking agent such as an anthracene ring compound. It may also contain fine particles as a layer of adhesive. Although the thickness of the adhesive layer is better, it is good to read (4) 1 to qing m', but it does not impair the processability, and the characteristic of f property is _, preferably thin coating, more preferably 3 to 25: two have good processing. It is also suitable thickness for suppressing the change of the rule of the polarizing film. When the adhesive layer (4) is less than 丨 (4), the adhesiveness is lowered, and more than 40 _ coffee is prone to poor transfer of the transfer agent. In the method of bonding the protective film 14 to the material layer 12 by means of an adhesive, an adhesive layer may be disposed on the u surface of the protective film, and then attached to the polarizing sub-layer 12, and an adhesive layer may be disposed on the surface of the polarizing sub-layer 12. After that, the protective film 14 0 can be attached to the solution containing the above-mentioned components of the matrix 1 (4) in the protective surface or polarized photo 322966 15 2U1142381
/W 1 ^ ISJ 干彤成黏著 光子層12，亦可於隔離件 I貼合保護膜14和偏 膜14面或偏光子層12面而積者劍層後，轉寫於保護 護膜14或偏光子層面12時，因%、+又，黏著劑層形成於保 偏光子層12面，n轉劑層之^要亦可於保護膜14或 理’例如，施以電 暈處理等。*面或者雙面進行密著處 [黏接劑層] 可例舉用聚乙=用之黏接劑，例如， 扎化黏接料水_接劑。用系-㈣胺$酸酿系 處理之乙酸纖維素 ； =4經專化處理等 合用水系黏接劑，可 =作為與偏光子層12之貼 為黏接劑之聚乙埽醇二〜醇系樹脂水溶液。對用作 合物之聚乙酸乙婦醋經二二::酸乙_的同元聚 之外，乙酸乙_和可與其斤得之乙稀醇同元聚合物 經喜化處理所得之乙婦醇系其他單體之共聚合物 部分改質之改質聚 b ° ’還有該等之趣基經 亦可添加作為添加劑之，一、合物等。水系黏接射， 氰胺系化合物、氧化 水，合性環氧化合物、三聚 系黏接劑時，自其戶H合物、辞化合物等。用如此之水 使以-般光學顯微二&接#1層通常係成以下，即 接劑層。^鏡觀察剖面，實質上亦無法觀察到該黏 用水系黏接劑貼合偏 特—例W子二= 322966 201142381 f面均勻塗佈黏接劑，將另一面的膜重合於塗佈面，藉輥 等按壓後乾燥之方法等。通常黏接劑在其調製後於15至 40 C之溫度下塗佈，貼合溫度範圍通常係15至祁。c。 使用水系黏接劑時，偏光子層12和保護膜14貼合後， 為了除去水系純财所含的水而錢之。乾燥爐之溫度 較佳係30至9(TC。未it 3(TC則偏光子@ 12和保護膜14 之黏接面有變得易剝離之傾向。9『c以上則有因熱而光學 性能劣化之疑慮。乾燥時間可係1〇至1〇〇〇秒，特別是從 生產性之觀點來看，較佳係60至750秒，更佳係150至 600 秒。 ’、 。己燥後再於室溫或比其略高之溫度，例如，亦可以2 至45t左右之溫度養護12至6〇M、時左右。養護時之公 度一般係設定為低於乾燥時所採用之溫度。 又，作為偏光子们2和保護膜14貼 亦可用光硬化性黏接劑。作為光硬化性 ^按別 :舉光硬化性環氧樹脂和光陽離子聚合；::合: 作為偏光子層12和保護膜14以光硬 之方法，可用歷來公知之方法，例如，可:接:’:貼口 (繞線棒⑽卿㈣㈣法、㈣㈣法、•塗^機 (c〇_a⑽㈣法、彻仏、模 角輪塗佈機 浸潰塗佈法、讀法等，於偏光子層此ng)、 黏接面塗佈黏接劑，而重合兩 或保遵膜14之 佈物之偏光子層.12或u之方法。流私係、將被塗 隻獏"，一邊以大致垂直方向、 322966 17 201142381 同時於其表面流 大致水平方向或兩者間之傾斜方向移動， 下黏接劑而擴散塗佈之方法。 於偏光子層12或㈣膜14之表面塗佈黏接劑後，將 偏光子層12及保賴14㈣純㈣佈面以軋親⑽ 油）等夾住貼合而黏接。又，亦可適用以偏光子層12和 保護膜14之重合狀態於偏光子層12和保護膜丨彳之間滴入 黏接劑後，該積層體以㈣加壓而均勻鋪開之方法。此時’ 之材質可用金屬和橡膠等。再者，較佳可採用於偏 2層12和保護膜14<間滴入黏接劑後，使該積層體通 過輥與輥之間’而加壓鋪開之方法。此時，該等之 ，同材質’亦可為不同之材質。用上述軋輥⑼貼合狀/W 1 ^ ISJ coherently adheres to the photonic layer 12, and can also be transferred to the protective film 14 after the spacer I is attached to the protective film 14 and the surface of the polarizing film 14 or the surface of the polarizing sub-layer 12 When the photon level is 12, the adhesive layer is formed on the surface of the polarization-maintaining photonic layer 12, and the n-transfer layer may be applied to the protective film 14 or the like, for example, by corona treatment or the like. * Adhesive on the side or on both sides [Adhesive layer] The adhesive used in Polyethylene =, for example, the tie-in adhesive water-based agent can be exemplified. Cellulose acetate treated with a system-(tetra)amine/acidic acid; =4 by specialization treatment, such as a water-based adhesive, which can be used as a binder for the polarizing layer 12 as a binder An aqueous resin solution. In addition to the homopolymerization of the polyacetic acid ethyl vinegar used as a compound, the acetic acid B and the ethylene glycol homopolymer which can be obtained by the same treatment The modification of the copolymer portion of the alcohol-based other monomer is a modification of the poly-b ° ', and such an interesting group can also be added as an additive, a compound, and the like. When the water is bonded, cyanamide-based compound, oxidized water, conjugated epoxy compound or trimer-based adhesive, it is derived from the H compound and the compound. With such water, the layer of the first <RTIgt; ^Mirror observation section, in fact, it is not observed that the adhesive water-based adhesive is attached to the special one - for example, W sub-two = 322966 201142381 f surface uniformly coated with the adhesive, the other side of the film is superposed on the coated surface, A method of drying by pressing a roller or the like. Usually, the adhesive is applied at a temperature of 15 to 40 C after its preparation, and the bonding temperature range is usually 15 to 祁. c. When the water-based adhesive is used, the polarizing layer 12 and the protective film 14 are bonded together, and the water contained in the pure water is removed. The temperature of the drying oven is preferably 30 to 9 (TC. Not it 3 (the polarizing surface of the polarizer @ 12 and the protective film 14 of TC tends to be easily peeled off. 9" or more has thermal properties due to heat. The drying time may be 1 to 1 second, especially from the viewpoint of productivity, preferably 60 to 750 seconds, more preferably 150 to 600 seconds. ', . At room temperature or a slightly higher temperature, for example, it can be maintained at a temperature of about 2 to 45 tons, and the temperature is generally lower than the temperature used for drying. As a photo-curable adhesive, it can also be used as a photocurable adhesive. As a photocurable epoxy resin and photocationic polymerization;::: as a polarizing sub-layer 12 and protection The film 14 can be light-hardened by a conventionally known method. For example, it can be: ': a mouth (a winding bar (10), a (four) (four) method, a (four) (four) method, a coating machine (c〇_a (10) (four) method, a thorough, The mold corner coating machine dipping coating method, reading method, etc., the adhesive layer is applied to the polarizing layer, and the bonding surface is coated with the adhesive, and the two are combined or adhered to the film 14 The method of polarizing sub-layers of cloth. 12 or u. The flow is private, will be coated only 貘, while moving in a substantially vertical direction, 322966 17 201142381 at the same time its surface flow is substantially horizontal or oblique between the two The method of diffusing and coating the lower adhesive agent. After applying the adhesive on the surface of the polarizing sub-layer 12 or the (4) film 14, the polarizing sub-layer 12 and the protective film 14 (four) pure (four) cloth surface to be rolled (10) oil) It is also possible to apply the adhesive between the polarizing sub-layer 12 and the protective film after the bonding of the polarizing sub-layer 12 and the protective film 14 is applied, and the laminated body is added with (4) The method of pressing and evenly spreading. At this time, the material of the material can be metal, rubber, etc. Further, it is preferable to use the two layers 12 and the protective film 14 after the adhesive is dropped, and the laminated body is passed through the roller. The method of pressurizing and spreading between the rolls and the rolls. At this time, the same material can be made of different materials. The above rolls (9) are bonded together.
占接劑層於錢或硬化前之厚度較佳係以下且 // m以上。 A 偏光子W2及/或保護膜14之黏接表面，為提昇黏 而，可適宜地施以㈣處理、電暈處理、紫外線照射/ 、、焰（flame)處理、皂化處理等表面處理。作為皂化』 =方:例舉浸潰於氫氧仙和聽化鉀類之祕水溶液i 作為轉冑㈣光硬純樹脂時，偏光子層12和保言 糾經接合後，藉由照射活性能量線而硬化光硬化性黏与 齊。活性能量線之光源雖無特別限定，但較佳係於波； 〇=?而具有發光分布之活性能量線，具體上，較佳 =用健核燈、Μ水賴、高水銀燈、超高磨水銀 、且學燈、黑光燈、微波激發水銀燈、金屬㈣燈等。 322966 18 201142381 對光硬化性黏接劑之光照射強度係依光硬化性黏接劑 之組成而適宜地決定，雖無特別限定，但對聚合起始劑之 活性化有效之波長領域之照射強度較佳係〇. 1至6〇〇〇mw/ cm2。照射強度為〇. lmW/cm2以上時’反應時間不會過長， 而6000 mW/cm2以下時，光源之輻射熱及光硬化性黏接劑之 硬化時的發熱而有不少產生環氧基樹脂之變黃和偏光膜之 劣化之疑慮。對光硬化性黏接劑之光照射時間係因應硬化 之光硬化性黏接劑而適用者，雖無特別限定，但較佳係設 定成作為上述之照射強度和照射時間之積所表示之積算光 量為10至10000mJ/cm2。對光硬化性黏接劑之積算光量為 10 mJ/cm以上時，產生充足量之源自聚合起始劑之活性種 而可使硬化反應更確實地進行，l〇〇〇〇mj/cm2以下時，照射 時間不會過長而可維持良好之生產性。再者，活性能量線 照射後之黏接劑層厚度通常係0.001至5以m左右，較佳係 0.01//m以上且2/zra以下，更佳係〇.〇1 以上且 以下。 藉活性能量線之照射而硬化光硬化性黏接劑時，較佳 係以不降低偏光子層12之偏光度、穿透率及色相以及保護 膜14之透明性等偏光板的各機能之條件而施行硬化。 [其他光學層] 如上述而製造本發明之偏光板，實用時可用作為積層 其他光學層之偏光板。又，上述保護膜14亦可具有該等光 學層之機旎。作為其他光學層之例，可例舉透射某種偏光 的光而反射表示與其相反性質之偏光的光之反射型偏光 322966 201142381 膜，表面具有凹凸形狀之附有防眩機能之膜，附有防止表 面反射機能之膜，表面具有反射機能之反射膜，同時兼具 反射機能和透射機能之半透射反射膜，視角補償膜。 作為相當於透射某種偏光光而反射表示與其相反性質 之偏光的光之反射型偏光膜的市售品，例如，可例舉诎虾 (3M公司製，可取得自住友3M(株））、APF(3M公司製，可 取得自住友3M(株））。作為視角補償膜，可例舉於基材表 面塗佈液晶性化合物而定向之光學補償膜，聚碳酸酯系樹 脂所成之相位差膜，環狀聚烯烴系樹脂所成之相位差膜。 作為相當於在基材表面塗佈液晶性化合物而定向之光學補 償膜的市售品，可例舉WV膜（富士軟片（株）製）、肫膜（新 曰本石油（株）製）、NR膜（新日本石油（株）製）等。又，作 為相當於環狀聚烯烴系樹脂所成之相位差膜的市售品，可 例舉ART0N(註冊商標）膜（JSR(株）製）、ESCENA(註冊商 枯）（積水化學工業（株）製）、ZE0N0R(註冊商標）膜 (0PTES(株）製）等。 ' 〈偏光性積層膜之製造方法〉 第3圖係表示第1圖所示之偏光性積層膜的製造方 法之一實施型態之流程圖。依照此，偏光性積層膜1〇之製 造方法係於基材膜11之其中一面之表面上形成由皂化度 99. 0莫耳％以下之聚乙稀醇系樹脂所成之樹脂層而作為積 層膜之樹脂層形成步驟（S10)，上述積層膜以超過5倍之延 伸倍率施行單軸延伸處理而作為延伸臈之延伸步驟 (S20)，上述延伸膜之樹脂層以二色性色素染色作為偏光子 322966 20 201142381 5 層12得到偏光性積層膜10之染色步驟（S30)，以此順序實 施者。樹脂層形成步驟（S10)、延伸步驟（S20)及染色步驟 (S30)係同於下述偏光板之製造方法中對應之各步驟。 藉該製造方法所得之積層膜係成為於經延伸之基材膜 11上具備厚度10㈣以下之偏光子層12之偏光性積層膜 10。亦可將此直接用作為偏光板，如同下述，亦可用作為 將偏光子層12轉寫至保護膜用之中間物製品。 〈偏光板之製造方法〉 第4圖係表示第2圖所示之偏光板13的製造方法之一 實施型態之流程圖。 依照此，偏光板13之製造方法係於基材膜u之其中 一面之表面上形成皂化度99·〇莫耳％以下之聚乙烯醇系 樹脂所成之樹脂層而作為積層膜之樹脂層形成步驟 (S10)，上述積層膜以超過5倍之延伸倍率施行單軸延伸處 理而作為延伸膜之延伸步驟（S20)，以二色性色素染色而作 為偏光子層12得到偏光性積層膜之染色步驟（S3〇)，依此 順序實施後，於上述偏光性積層膜之與偏光子層12之基材 膜11侧之面為相對側的面貼合保護膜14而得到多層膜之 貼合步驟（S40)’自上述多層膜剝離基材膜11之剝離步驟 (S50)，依此順序設置。 藉該製造方法所得之偏光板13係成為於保護膜η上 設置厚度10/zm以下之偏光子層12之偏光板13。該偏光 板13 ’例如，可用作經由感壓式黏接劑貼合於其他光學膜 和液晶單元等。 322966 201142381 以下詳細說明關於第3圖及第4圖中的si〇至S50之 各步驟。再者’第3圖及第4圖中的S10至s30之各步驟 係同樣步驟。 [樹脂層形成步驟（S10)] 在此’基材膜之其中一面之表面上形成聚乙烯醇系樹 脂所成之樹脂層。 適於基材膜之材料係同於上述偏光性積層膜之構成說 明所述。再者，本實施型態中，基材膜係為了可在適於聚 乙婦醇系樹脂之延伸的溫度範圍延伸而較佳係用溶點為 110°C以上者。較佳係用熔點為i3(rc以上者。基材膜溶點 未達110°c，則下述的延伸步驟（S20)中，基材膜易溶解而 無法充分提昇延伸溫度，因而超過5倍之延伸變困難。基 材膜之熔點係基於is〇3i46以升溫速度urc/minm測定之 值。 為形成樹脂層而適宜之聚乙烯醇系樹脂之材料係同於 偏光性積層膜之構成說㈣述。形成的樹脂層厚度較佳係 超過3㈣且心㈣下’更佳係5至2〇_。當3_以 下，則延伸後變過薄而染色性明顯惡化， 最終所得之絲子層厚度超過W而不t3(^’則 β樹脂層較佳係將聚乙稀醇系樹脂之粉末溶解於良⑸ 而付到之紅_系_溶液塗覆於基㈣之其中一面: t =，藉由洛發溶劑乾燥而形成。藉由樹脂層如此形; 材膜成。，聚乙婦醇系樹脂溶液塗覆於; 、/ 11從公知方法巾適宜地選_用線棒式塗4 322966 22 201142381 法、逆轉塗佈法、凹版塗佈法等輥式塗佈法，模塗佈法、 缺角輪塗佈法、唇塗佈法（lip coating)、旋轉塗佈法、網 板塗佈法、喷流式塗佈法（fountain coating)、浸潰塗佈 法、喷霧法等。乾燥溫度例如係50至2〇〇°C，較佳係60 至150°C。乾燥時間例如係2至20分鐘。 再者，本實施型態中，樹脂層係亦可能藉由聚乙烯醇 系樹脂所成之胚材膜黏貼於基材膜之其中一面之表面上而 形成® 又，為了提昇基材膜和聚乙埽醇系樹脂之密著性，基 材膜和樹脂層之間亦可設置底漆層。底漆層係以於聚乙稀 醇系樹脂中含有交聯劑等組成物所形成，以密著性之觀點 來看較佳。 [延伸步驟（S20)] 在此’將基材膜及樹脂層所成之積層膜，相對於積層 膜原長，以成為超過5倍之延伸倍率進行單軸延伸而得到 延伸膜。較佳係成為超過5倍且17倍以下之延伸倍率進行 單軸延伸。更佳係成為超過5倍且8倍以下之延伸倍率進 ^單轴延伸。當延伸倍率在5倍以下時，ϋ聚乙_系樹 脂=成之樹脂層無充分之定向’結果偏光子層之偏光度不 充分高。另一方面，當延伸倍率超過17倍，則延伸時變得 谷易發生積層膜之破斷，同時延伸膜之厚度變得超過需要 的薄，後面步驟中有之加工性/處理性低落之疑慮。延伸步 驟（S20)中之延伸處理係不限於單一階段之延伸而亦可多 階段進行。多階段進行時，以使延伸處理之全階段總合成 322966 23 201142381 為超過5倍之延伸倍率之方式施行延伸處理。 本實施型態之延伸步驟⑽）中，較佳雖係對積層膜之 長度方向施行延伸處理’但不太要求偏光性能時亦可藉拉 幅機（tenter^之橫單軸延料所代表之固定端單 伸。作為縱延伸方式，可例舉輥間延伸方法、壓縮延伸方 法、用拉幅機之延伸方法等。延伸處理係不限於縱延 理，亦可係傾斜延伸處理等。又，較佳係自由端單軸延伸。 又’延伸處理係雖可採用濕潤式延伸方法和乾式延伸 方法之任-者，但肖乾歧伸方法者，以延伸制膜時广 度可從廣範圍中選擇的點而言為較佳。 * m 本實施型態中，較佳係基材膜之融點之_如。匚至+5。匸之 溫度範圍施行延伸處理。更佳係基材膜之融點之_25t至融 點之溫度範圍施行延伸處理。當延伸溫度低於基材膜n之 融點之-30 C時，則超過5倍之高倍率延伸變困難。當延伸 溫度超過基材膜之融點之+ 51時，則因基材膜之融解而延 伸變困難而不佳。再者，延伸溫度於上述範圍内，更佳係 120°C以上。延伸溫度為120〇C以上時，就算超過5倍之高 延伸倍率，延伸處理亦不伴隨困難性。延伸處理之溫度調 整通常係藉加熱爐之溫度調整。 [染色步驟（S30)] 在此，延伸膜之樹脂層以二色性色素染色。作為二色 性色素，例如，可例舉碘和有機染料等。作為有機染料， 例如，可使用紅BR、紅LR、紅R、粉紅LB、紅素（rubin)BL、 棗紅（Bordeaux)GS、天藍LG、檸檬黃、藍BR、藍2R、海 322966 24 201142381 軍藍（navy)RY、綠 LG、紫（violet)LB、紫 B、黑 Η、黑 B、 黑68?、黃30、黃尺、撥1^、撥3尺、獲紅（5〇31'161:)61(、 獲紅 KGL、剛果紅（congo red)、亮紫（brilliant violet) BK、超藍（supra blue)G、超藍 GL、超橙（supra orange)GL、 直接天藍、直接第一撥S、第一黑等。該等二色性物質可 用單一種類，亦可並用二種類以上。 染色步驟，例如，藉由於含有上述二色性色素之溶液 (染色溶液）中浸潰延伸膜整體而施行。作為染色溶液，可 使用上述二色性色素溶解於溶媒之溶液。作為染色溶液之 溶媒，雖-般❹水’但亦可再添加和水有相溶性之有機 溶媒。作為二色性色素之濃度’較佳係〇 〇1至ι〇罐， 更佳係G.G2至7重量％，特佳係〇·_至$重量％。 作為二色性色素使用硬時， 羊來看，較佳簡添加魏物。作為料 例舉碘化_、魏鐘、魏 〇 峨化銅、蛾化鋇、叫叫匕錫化鋅：㈣、破化錯、 物之添加比例較佳係於染色溶液中為q、鈦等。該等峨化 =物之中，較佳係添加峨化卸。添—二:重二 化鉀之比例以重量比，較 -化鉀時’碘和碘 範圍係1 : 6至丨：8〇 ^ · 5至1 ·· 100，更佳 於染色溶液之延伸膣夕、、夺、圭士 至1 . 70。 常較佳範圍係15秒至、間雖無特別限^ ’但通 V 土 分鐘，更 又，染色溶液之溫度，較佳_ 2鐘至3分鐘。 係2〇t至40°C。 ’、 Cl6〇C，更佳範圍 322966 25 201142381 染色步驟中，染色後可接著施行交聯處理。交聯處理， 例如可藉由於含交聯劑之溶液（交聯溶液）中浸潰延伸膜而 施行。作為交聯劑，可使用歷來公知之物質。例如，可例 舉硼酸、硼砂等硼化合物和乙二醛、戊二醛等。該等係可 用單一種類，亦可併用二種類以上。 作為交聯溶液，可使用溶解交聯劑於溶媒之溶液。作 為溶媒，例如可使用水，再者，亦可含和水有相溶性之有 機溶劑。交聯溶液中交聯劑之濃度係無限定者，但較佳範 圍係1至20重量％，更佳係6至15重量％。 交聯溶液中亦可添加破化物。藉峨化物之添加，樹脂 層内面中之偏光特性可更均勻化。作為碘化物，例如，可 例舉峨化鉀、峨化裡、埃化鈉、蛾化鋅、蛾化銘、破化船、 碘化銅、碘化鋇、碘化鈣、碘化錫、碘化鈦。碘化物之含 量係0. 05至15重量％，更佳係0. 5至8重量％。 於交聯溶液之延伸膜之浸潰時間，通常較佳係15秒至 20分鐘，更佳係30秒至15分鐘。又，交聯溶液之溫度， 較佳範圍係10°C至80°C。 在最後，較佳係施行洗淨步驟及乾燥步驟。作為洗淨 步驟，可施行水洗淨處理。水洗淨處理通常可藉於離子交 換水、蒸餾水等純水中浸潰延伸膜而施行。水洗淨溫度範 圍通常係3°C至50°C，較佳係4°C至20°C。浸潰時間通常 係2至300秒，較佳係3至240秒。 洗淨步驟係可組合藉碘化物溶液之洗淨處理和水洗淨 處理，亦可用適宜地調配曱醇、乙醇、異丙醇、丁醇、丙 26 322966 201142381 醇等液態醇之溶液。 /爭步驟後’較佳係施行乾燥步驟。作為乾燥步， 可，用任忍之適宜方法（例如，自錄燥送風乾燥、加 乾，）°例如’加熱乾燥時之乾燥溫度通常係20。(：至95V、 乾燥時間通常係丨i 15分鐘左右。藉由上述之染色+嫌 ⑽）’樹脂層成為具有作為偏光子之機能。本說明書ς， 具有作為偏光子之機能之樹脂層稱為偏光子層，於^贈 上具備偏光子狀積輕稱為偏光性積賴。 本實施型態中，於樹脂層使用皂化度為99. 0莫耳％ 下之聚乙稀醇系樹脂，又，延伸步驟（S2〇)中，因以超二 倍之延伸倍率施行單軸延伸，*在染色步驟⑽）中 好之染色速度。再者，用皂化度高之聚乙烯醇系樹月旨之稽$ 脂詹，於染色步驟（S3G)中染色速度降低而染色易不充分。 [貼合步驟（S40)] 在此，偏光性積層膜中，於與偏光子層之基材獏側之 面為相對側之面上貼合保護膜而得到多層膜，作為貼合保 護膜之方法’可例舉轉著劑貼合偏光子層12和保護膜 14之方法，以黏接劑貼合偏光子層12和保護膜14之方法。 作為保護膜適宜之材料係如同上述偏光板之構成說明所 述。又’適於使用的黏接劑、黏著劑之材料及用該等貼合 偏光子層12和保護膜14之較佳方法係如同上述偏光板之 構成說明所述。 [剝離步驟（S50)] 本實施裂態之偏光板之製作方法，如同第4圖所示， 322966 27 201142381 保護膜貼合於偏光性積層膜的偏光子層12之貼合步驟 (S40)後，施行剝離步驟（S50)。剝離步驟（S50)中，將基材 膜從多層膜剝離。基材膜之剝離方法無特別限定，可藉與 在一般之附黏著劑偏光板施行剝離膜之剝離步驟之同樣方 法剝離。保護膜之貼合步驟（S40)後，亦可直接立即剝離， 亦可先捲取於輥狀後，再另設置剝離步驟剝離。 (實施例） 以下，雖為更具體說明本發明而揭示實施例及比較 例，但本發明並不受限於該等例。 實施例1 遵循第4圖所示之製造方法而製作第2圖所示之偏光 板。 (基材膜） 作為基材膜，用厚度110#m之未延伸聚丙烯（PP)膜 (熔點：163°C)。 (底漆層形成步驟） 於95°C熱水中溶解聚乙烯醇粉末（日本合成化學工業 (株）製，平均聚合度1100，皂化度99. 5莫耳％，商品名： Z-200)，調製成濃度3重量％之水溶液。所得之水溶液中 混合相對於聚乙烯醇粉末6重量份為5重量份之交聯劑（住 友化學（株）製，商品名：Sumirez(註冊商標）Resin 650)。 得到之混合水溶液於施加電暈處理之基材膜上用微凹 版塗佈機塗覆，於80°C乾燥10分鐘而形成厚度0. 2# m之 底漆層。 28 322966 201142381 (樹脂層形成步驟） 於95°C熱水中溶解聚乙烯醇粉末（可樂麗（株）製，平 均聚合度2400，皂化度98. 0至99. 0莫耳％，商品名： PVA124)，調製成濃度8重量％之聚乙烯醇水溶液。所得之 水溶液於上述底漆層上用唇塗佈機塗覆，於80°C乾燥20 分鐘而作成由基材膜、底漆層、樹脂層所成之三層積膚膜。 (延伸步驟） 上述積層膜用拉幅機裝置，於160°C實施5.8倍之自 由端單軸延伸而得到延伸膜。延伸後之樹脂層厚度係6. 1 /z m。 (染色步驟） 其後，延伸膜於60°C溫浴浸潰60秒，於30°C的碘和 碘化鉀之混合水溶液之染色溶液浸潰150秒左右而染色 後，以10°C之純水流洗去多餘碘液。然後於76°C的硼酸和 碘化鉀之混合水溶液之交聯溶液浸潰600秒。其後以10°C 之純水洗淨4秒，最後於50°C乾燥300秒。藉由上述步驟 自樹脂層形成偏光子層而得到偏光性積層膜。以下係各溶 液之調配比例。 〈染色溶液〉 水：10 0重量份 埃：0. 6重量份 碘化鉀：10重量份 〈交聯溶液〉 水：100重量份 29 322966 201142381 硼酸：9. 5重量份 碘化鉀：5重量份 (保護膜之貼合） 於95°C熱水中溶解聚乙稀醇粉末（可樂 均聚合度讓，商品名：KL_3⑻，調製成濃二株)製，平 之水溶液。所得之水溶液中混合㈣於聚㈣=重量％ 篁份為1重量份之交聯劑（住友化學（株）製，:2重 S^ez (註冊商標）Resin _ ’作為黏接劑溶液品^ =光性積層狀與偏光子層之基材膜狀㈣相對側之 佈上述聚乙烯㈣黏接劑後貼合於保制（柯尼卡美 =精密光學（株）製之TAC : K4UY)，得到由 1 ，劑層、偏光子層、底漆層、基龍之五層所叙偏光黏 2得之偏光板剝離基㈣。基㈣容㈣離 濩膜、黏接劑層、低本 』田保 偏光子層厚㈣61tr層之四層所成之偏光板。 實施例2 本合:===除了使用聚乙稀醇粉末(曰 至98 5蕈平均聚合度22〇〇,專化度97·5 法而，里、耳。’商品名：AH~22)以外皆與實施例1相同方 二=仲膜。延伸膜中樹脂層厚度係5•一。： 等，得二由Γί方法實施染色步驟、貼合步驟、剝離步驟 實 偏光板。偏光子職係5·6-。 322966 30 201142381 作為樹脂層用之聚乙烯醇，除了使用聚乙稀醇粉末 本VAM&POVAL(株）製，平均聚合度2600，皂化度95 5曰 97. 5莫耳％ ’商品名：JM-26)以外皆與實施例1指门方、、 而得到延伸膜。延伸膜中樹脂層厚度係5. 3 yin。再者，去 實施例1同樣方法實施染色步驟、貼合步驟、剝離步驟等# 得到由保護膜、黏接劑層、偏光子層、底漆層之四層戶 之實施例3之偏光板。偏光子層厚度係5. 3em。 比較例1 作為樹脂層用之聚乙烯醇，除了使用聚乙烯醇粉末（可 樂麗（株）製’平均聚合度1700，皂化度99· 3莫耳％以上 商品名：PVA117H)以外皆與實施例1相同方法而得到延伸 膜。延伸膜中樹脂層厚度係6.3//m。再者，與實施例i同 樣方法實施染色步驟、貼合步驟、剝離步驟等，得到由保 濩膜、黏接劑層、偏光子層、底漆層之四層所成之比較例 1之偏光板。偏光子層厚度係6. 3ym。 比較例2 作為樹脂層用之聚乙烯醇，除了使用將聚乙烯醇（可樂 麗（株）製’平均聚合度2400，皂化度99. 9莫耳％以上， 商品名：KURARAY POVAL VF-PS#7500)切細碎者和延伸步驟 中延伸倍率作為4.0倍以外皆與實施例1相同方法而得到 延伸膜。延伸膜中樹脂層厚度係6.7/zm。再者，與實施例 1同樣方法實施染色步驟、貼合步驟、剝離步驟等，得到 由保5隻膜、黏接劑層、偏光子層、底漆層之四層所成之比 較例2之偏光板。偏光子層厚度係6.7 。 31 322966 201142381 比較例3 作為樹脂層用之聚乙烯醇’除了使用將聚乙稀醇（可樂 麗（株）製，平均聚合度2400 ’皂化度99.9莫耳％以上， 商品名：KURARAYPOVAL VF-PS#7500)切細碎者以外皆與實 施例1相同方法而得到延伸膜。延伸膜中樹脂層厚度係6 3 β m。再者，與實施例1同樣方法實施染色步驟、貼合步驟、 剝離步驟等，得到由保護膜、黏接劑層、偏光子層、底漆 層之四層所成之比較例3之偏光板。偏光子層厚度係6 3 β m 〇 (偏光性能的測定） 剝離基材膜而得到由保護膜、黏接劑層、偏光子層、 底漆層之四層所成之偏光板的MD穿透率及TD穿透率係以 附有積分球之分光光度計（曰本分光（株）製，V71〇〇)測定。 基於前述式（1)、式（2)算出各波長中單體穿透率、偏光度， 再藉JIS Z 8701之2度視野（C光源）施行發光因子修正， 求得發光因子修正單體穿透率（Ty)及發光因子修正偏光度 (Py)。再者，偏光板之測定係將保護膜側作為檢驗側，設 定機器讓光從底漆層侧入光。 關於實施例1及比較例1至3之偏光板所算出之發光 因子修正單體穿透率（Ty)及發光因子修正偏光度（Py)表示 於表1.。 ' (對市售行動電話之實裝評價） KDDI(株）所販賣之「auEXILIM手機W53CA」（製造商： CAS10片算機（株））分解後’剝下貼於液晶單元的上下之偏 322966 32 201142381 光板，取出液晶單元。 實施例1至3及比較例1至3所得之偏光板，經由感 壓式黏接劑貼附於液晶單元的上下。此時，貼附於液晶單 元的上側（視認侧）之偏光板的吸收軸，從視認側來看的視 點，係配置為由液晶單元短邊逆時鐘轉170度之方式。又， 貼附於液晶單元的下側（背光侧）之偏光板的吸收軸，從視 認側來看的視點，係配置為由液晶單元短邊逆時鐘轉80度 之方式。再者，此配置角度係與原本貼於液晶單元之原始 偏光板的吸收軸之配置角度成同樣者 使用上下貼附實施例1至3及比較例1至3所得之偏 光板之液晶單元，再度組成行動電話而顯示圖像。一般屋 内環境及暗室内以目視判定圖像之清晰性來實施顯示狀態 之評估。 實施例1至3及比較例1至3之偏光板的評估結果表 示於表1。 [表1 皂化度 (莫耳« 偏光子層 之厚度 (^m) 延伸倍率 (倍） 染色溶液 浸溃時間 (秒） Ty ⑻ Py ⑻ 實裝時之圊像 目視判定 實施例1 98.0 至 99.0 6.1 仁 m 5. 8倍 150秒 42.3 99.992 清晰而良好之顯示 實施例2 97.5 至 98.5 5. 5 /2 m 5. 8倍 150秒 40.8 99.997 清晰而良好之顯示 實施例3 95.5 至 97.5 5. 3 μ m 5.8倍 150秒 40. 1 99.997 清晰而良好之顯示 比較例1 99.3以上 6. 3 μ m 5.8倍 150秒 45.5 97.981 CR低，欠缺清晰 之顯示 比較例2 99. 9以上 6. 7 // m 4.0倍 150秒 41.9 97.774 CR低*欠缺清晰 之顯示 比較例3 99. 9以上 6. 3 μ m 5. 8倍 150秒 45.8 95.052 CR低，欠缺清晰 之顯示 33 322966 201142381 實施例1至3中，用皂化度為99.0莫耳％以下之聚乙 烯醇系樹脂而延伸倍率超過5倍，作為無礙於一般生產程 度之染色時間，亦可得期望之Ty、Py。然後，藉所得之偏 光板使用於液晶顯示裝置，成為清晰而良好之圖像顯示。 另一方面’比較例1、3中，因用皂化度超過99. 〇莫 耳％之聚乙稀醇系樹脂而延伸倍率超過5倍，以無礙於一 般生產程度之染色時間無法充分染色，Py亦成低值》然後， 藉所得之偏光板使用於液晶顯示裝置，成為對比度（CR)低 而欠缺清晰之圖像顯示。 又，比較例2中，因用皂化度超過99.0莫耳％之聚乙 烯醇系樹脂而延伸倍率5倍以下，雖以無礙於一般生產程 度之染色時間可充分染色，但Py成低值。然後，藉所得之 偏光板使用於液晶顯示裝置，成為對比度（CR)低而欠缺清 晰之圖像顯示。 【圖式簡單說明】 第1圖係表示本發明之偏光性積層膜的基本之層結構 之一例之概要剖面圖。 第2圖係表示本發明之偏光板的基本之層結構之一例 之概要剖面圖。 第3圖係表示第1圖所示之偏光性積層膜的製造方法 之一實施型態之流程圖。 第4圖係表示第2圖所示之偏光板的製造方法之一實 施型態之流程圖。 【主要元件符號說明】 34 322966 201142381 10 偏光性積層膜 11 基材膜 12 偏光子層 13 偏光板 14 保護膜 35 322966The thickness of the occupant layer before money or hardening is preferably below and // m or more. The bonding surface of the A polarizer W2 and/or the protective film 14 may be subjected to surface treatment such as (4) treatment, corona treatment, ultraviolet irradiation/, flame treatment, saponification treatment, etc. in order to enhance adhesion. As a saponification, the saponification is exemplified by the immersion in the aqueous solution of oxyhydroquinol and osmolarity, as a light-hardening resin, when the polarizing sub-layer 12 and the stencil are entangled, the active energy is irradiated. Line and hardened photohardenable. Although the light source of the active energy ray is not particularly limited, it is preferably a wave; 〇=? and has an active energy ray of illuminating distribution. Specifically, it is preferable to use a health nucleus lamp, a swill water, a high mercury lamp, and a super high grinding machine. Mercury, learning lamps, black lights, microwave-excited mercury lamps, metal (four) lamps, etc. 322966 18 201142381 The light irradiation intensity of the photocurable adhesive is suitably determined depending on the composition of the photocurable adhesive, and is not particularly limited, but the irradiation intensity in the wavelength field effective for activation of the polymerization initiator Preferably, the system is 11 to 6〇〇〇mw/cm2. When the irradiation intensity is 〇. lmW/cm2 or more, the reaction time is not too long, and when it is 6000 mW/cm2 or less, the radiant heat of the light source and the heat of the photocurable adhesive are hardened, and many epoxy resins are produced. The doubt that the yellowing and the polarizing film are deteriorated. The light irradiation time of the photocurable adhesive is preferably applied to the photocurable adhesive which is cured, and is not particularly limited, but is preferably set as the product of the above-mentioned product of the irradiation intensity and the irradiation time. The amount of light is 10 to 10000 mJ/cm2. When the integrated light amount of the photocurable adhesive is 10 mJ/cm or more, a sufficient amount of the active species derived from the polymerization initiator is generated, and the hardening reaction can be more reliably performed, and the thickness is below 1 mj/cm 2 . When the irradiation time is not too long, good productivity can be maintained. Further, the thickness of the adhesive layer after the irradiation of the active energy ray is usually about 0.001 to 5 m, preferably 0.01/m or more and 2/zra or less, more preferably 〇. When the photocurable adhesive is cured by irradiation with an active energy ray, it is preferable to reduce the polarization of the polarizing sub-layer 12, the transmittance, the hue, and the transparency of the protective film 14 to the functions of the polarizing plate. And hardening is performed. [Other optical layer] The polarizing plate of the present invention is produced as described above, and can be used as a polarizing plate for laminating other optical layers in practice. Further, the protective film 14 may have a mechanism of the optical layers. As an example of the other optical layer, a reflective polarized light 322966 201142381 film which transmits light of a certain polarized light and reflects light having a polarized property opposite thereto can be exemplified, and a film having an anti-glare function having a concave-convex shape on the surface thereof is provided with an anti-glare function. A film with a surface reflection function, a reflective film with a reflective function on the surface, a transflective film with both a reflection function and a transmission function, and a viewing angle compensation film. A commercially available product which is a reflective polarizing film which transmits a light which reflects a certain amount of polarized light and reflects the polarized light of the opposite nature, and is, for example, a prawn (available from 3M Company, available from Sumitomo 3M Co., Ltd.) APF (made by 3M company, it is available from Sumitomo 3M Co., Ltd.). The viewing angle compensation film may be an optical compensation film in which a liquid crystal compound is applied to the surface of the substrate, a retardation film made of a polycarbonate resin, or a retardation film made of a cyclic polyolefin resin. The commercially available product which is an optical compensation film which is oriented to apply a liquid crystal compound to the surface of the substrate, and is a WV film (manufactured by Fujifilm Co., Ltd.), a ruthenium film (manufactured by Shin Sakamoto Co., Ltd.), NR film (manufactured by Nippon Oil Co., Ltd.). In addition, as a commercially available product of a retardation film made of a cyclic polyolefin resin, ART0N (registered trademark) film (manufactured by JSR Co., Ltd.), ESCENA (registered company) (salt water chemical industry ( ZE ) ZE ZE ZE ZE ZE ZE ZE 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. <Manufacturing method of polarizing laminated film> Fig. 3 is a flow chart showing an embodiment of a method for producing a polarizing laminated film shown in Fig. 1. According to this, the method of producing the polarizing laminated film 1 is formed by laminating a resin layer made of a polyvinyl alcohol-based resin having a saponification degree of 99.0% or less on the surface of one surface of the base film 11. a resin layer forming step (S10) of the film, wherein the laminated film is subjected to uniaxial stretching treatment at a stretching ratio of more than 5 times as an extending step of the stretching film (S20), and the resin layer of the stretching film is dyed by a dichroic dye as a polarizing film Sub-322966 20 201142381 5 Layer 12 obtains a dyeing step (S30) of the polarizing laminated film 10, which is carried out in this order. The resin layer forming step (S10), the stretching step (S20), and the dyeing step (S30) are the same as those in the following method for producing a polarizing plate. The laminated film obtained by the above-described production method is a polarizing laminated film 10 having a polarizing layer 12 having a thickness of 10 (four) or less on the stretched base film 11. This can also be used directly as a polarizing plate, and can also be used as an intermediate product for transferring the polarizing sub-layer 12 to a protective film as described below. <Method of Manufacturing Polarizing Plate> Fig. 4 is a flow chart showing an embodiment of a method of manufacturing the polarizing plate 13 shown in Fig. 2. According to this, the method of producing the polarizing plate 13 is to form a resin layer formed of a polyvinyl alcohol-based resin having a saponification degree of 99% by mole or less on the surface of one surface of the base film u to form a resin layer as a laminated film. In the step (S10), the laminated film is subjected to uniaxial stretching treatment at a stretching ratio of more than 5 times as a stretching step (S20), and dyeing with a dichroic dye to obtain a polarizing laminated film as a polarizing layer 12 After the step (S3), the step of bonding the protective film 14 to the surface on the side opposite to the surface of the base film 11 of the polarizing layer 12 on the surface of the polarizing layer 12 to obtain a multilayer film is carried out. (S40) 'The peeling step (S50) of peeling the base film 11 from the above multilayer film is set in this order. The polarizing plate 13 obtained by the above-described manufacturing method is a polarizing plate 13 having a polarizing sub-layer 12 having a thickness of 10/zm or less on the protective film η. The polarizing plate 13' can be used, for example, as a pressure-sensitive adhesive to be bonded to other optical films, liquid crystal cells, and the like. 322966 201142381 The steps of si〇 to S50 in Figs. 3 and 4 will be described in detail below. Further, the steps of S10 to s30 in Figs. 3 and 4 are the same steps. [Resin layer forming step (S10)] A resin layer made of a polyvinyl alcohol-based resin is formed on the surface of one of the base films. The material suitable for the substrate film is the same as the constitution of the above polarizing laminate film. Further, in the present embodiment, the base film is preferably one having a melting point of 110 ° C or more in order to extend in a temperature range suitable for elongation of the polyethylene glycol-based resin. Preferably, the melting point is i3 (rc or more. When the melting point of the substrate film is less than 110 ° C, the substrate film is easily dissolved in the following stretching step (S20), and the stretching temperature cannot be sufficiently increased, thereby exceeding 5 times. The elongation of the substrate film is based on the value measured by the temperature urc/minm of is〇3i46. The material of the polyvinyl alcohol-based resin suitable for forming the resin layer is the same as that of the polarizing laminated film (4) The thickness of the formed resin layer is preferably more than 3 (four) and the heart (four) is 'better 5 to 2 〇 _. When 3 _ or less, the thickness is thinned after stretching and the dyeability is significantly deteriorated, and the resulting thickness of the silk layer is obtained. More than W and not t3 (^', the β resin layer is preferably dissolved in the powder of the polyethylene resin in the good (5) and the red _ system solution is applied to one side of the base (4): t =, borrow It is formed by drying the solvent of Luofa. The resin layer is shaped like this; the film is formed, and the solution of the polyethoxylated alcohol resin is applied; and /11 is suitably selected from the known method towel _ by the bar coating 4 322966 22 201142381 Roll coating method such as method, reverse coating method, gravure coating method, die coating method, corner wheel coating method Lip coating method, spin coating method, screen coating method, fountain coating method, dipping coating method, spray method, etc. The drying temperature is, for example, 50 to 2 〇. 〇°C, preferably 60 to 150° C. The drying time is, for example, 2 to 20 minutes. Further, in the present embodiment, the resin layer may be adhered by a germicidal film formed of a polyvinyl alcohol resin. The surface layer is formed on one surface of the base film. In order to improve the adhesion between the base film and the polyethylene glycol resin, a primer layer may be provided between the base film and the resin layer. It is preferable to contain a composition such as a crosslinking agent in the polyvinyl alcohol-based resin, and it is preferable from the viewpoint of adhesion. [Extension Step (S20)] Here, the base film and the resin layer are formed. The laminated film is uniaxially stretched at a stretching ratio of more than 5 times with respect to the original length of the laminated film to obtain a stretched film. Preferably, the laminated film is uniaxially stretched at a stretching ratio of more than 5 times and 17 times or less. The extension ratio of more than 5 times and 8 times or less is uniaxially extended. When the stretching ratio is 5 times or less, ϋ Polyethylene-based resin = the resin layer is not sufficiently oriented. As a result, the polarizing degree of the polarizing sub-layer is not sufficiently high. On the other hand, when the stretching ratio exceeds 17 times, the laminating film is liable to break when extended. At the same time, the thickness of the stretched film becomes more than necessary, and the processing/treatment property is lowered in the subsequent step. The elongation treatment in the stretching step (S20) is not limited to the extension of a single stage but may be carried out in multiple stages. In the multi-stage process, the elongation process is performed in such a manner that the total synthesis of the whole process of the extension process is 322966 23 201142381, which is more than 5 times the extension ratio. In the extension step (10)) of the present embodiment, the length of the laminate film is preferably The direction is extended. 'But the polarizing performance is not required. You can also borrow the tenter (the fixed end of the tenter^'s horizontal single-axis extension). The longitudinal stretching method may, for example, be a method of extending between rolls, a method of compressing and stretching, a method of stretching by a tenter, or the like. The extension processing is not limited to the longitudinal extension, and may be a tilt extension processing or the like. Further, it is preferred that the free end is uniaxially extended. Further, although the extension processing method may employ either a wet stretching method or a dry stretching method, it is preferable that the method of stretching the film can be selected from a wide range. * m In this embodiment, it is preferred that the melting point of the substrate film is such as.匚 to +5. The temperature range of the crucible is extended. It is better to carry out the elongation treatment from the melting point of the melting point of the base film of _25t to the melting point. When the stretching temperature is lower than -30 C of the melting point of the substrate film n, it is difficult to extend at a high magnification of more than 5 times. When the stretching temperature exceeds + 51 of the melting point of the substrate film, it is difficult to extend due to the melting of the substrate film. Further, the stretching temperature is in the above range, more preferably 120 °C or higher. When the elongation temperature is 120 〇C or more, even if the stretching ratio exceeds 5 times, the elongation treatment is not accompanied by difficulty. The temperature adjustment of the extension process is usually adjusted by the temperature of the furnace. [Dyeing Step (S30)] Here, the resin layer of the stretched film is dyed with a dichroic dye. The dichroic dye may, for example, be iodine or an organic dye. As the organic dye, for example, red BR, red LR, red R, pink LB, rubin BL, bordeaux GS, sky blue LG, lemon yellow, blue BR, blue 2R, sea 322966 24 201142381 may be used. Blue (navy) RY, green LG, violet (violet) LB, purple B, black sputum, black B, black 68?, yellow 30, yellow ruler, dial 1^, dial 3 feet, get red (5〇31'161 :) 61 (, red KGL, congo red, brilliant violet BK, supra blue G, super blue GL, supra orange GL, direct sky blue, direct first S, first black, etc. These dichroic substances may be used in a single type, or may be used in combination of two or more types. The dyeing step, for example, by impregnating the entire stretched film with a solution containing the above-mentioned dichroic dye (dyeing solution) As the dyeing solution, a solution in which the dichroic dye is dissolved in a solvent can be used. As a solvent for the dyeing solution, an organic solvent compatible with water can be added as a solvent. The concentration of the pigment is preferably 〇〇1 to ι〇, more preferably G.G2 to 7% by weight, especially good 〇·_ to $ When it is hard to use as a dichroic dye, it is better to add Weiwei to the sheep. As an example, iodine _, Wei Zhong, Wei Wei copper, moth phlegm, and zinc bismuth zinc : (4), breaking the wrong, the proportion of the addition of the material is preferably in the dyeing solution is q, titanium, etc. Among the such deuterated =, it is better to add hydrazine. Add - two: heavy potassium The ratio is in the weight ratio, and the ratio of 'iodine and iodine' is 1: 6 to 丨: 8〇^ · 5 to 1 ··100, which is better than the extension of the dyeing solution, 夺, 圭, to 1 70. The preferred range is 15 seconds to, although there is no special limit ^ 'but the V soil minute, and more, the temperature of the dyeing solution, preferably _ 2 to 3 minutes. 2 〇 t to 40 ° C ', Cl6〇C, better range 322966 25 201142381 In the dyeing step, the dyeing step can be followed by cross-linking treatment. Cross-linking treatment, for example, by immersing the stretch film in a solution containing a cross-linking agent (cross-linking solution) Further, as the crosslinking agent, a conventionally known one can be used, and examples thereof include a boron compound such as boric acid or borax, glyoxal, glutaraldehyde, and the like. A single type may be used, or two or more types may be used in combination. As the crosslinking solution, a solution in which a crosslinking agent is dissolved in a solvent may be used. As the solvent, for example, water may be used, or an organic solvent compatible with water may be contained. The concentration of the crosslinking agent in the crosslinking solution is not limited, but is preferably in the range of 1 to 20% by weight, more preferably 6 to 15% by weight. Further, a crosslinking compound may be added to the crosslinking solution. The polarizing characteristics in the inner surface of the resin layer can be more uniform. The iodide may, for example, be potassium telluride, bismuth hydride, sodium hydride, molybdenum, moth, cracked boat, copper iodide, cesium iodide, calcium iodide, tin iodide or iodine. Titanium. 5至8重量百分比。 The iodide content is 0. 05 to 15% by weight, more preferably 0.5 to 8% by weight. The impregnation time of the stretched film of the cross-linking solution is usually preferably from 15 seconds to 20 minutes, more preferably from 30 seconds to 15 minutes. Further, the temperature of the crosslinking solution is preferably in the range of 10 ° C to 80 ° C. In the end, it is preferred to carry out a washing step and a drying step. As a washing step, a water washing treatment can be performed. The water washing treatment can usually be carried out by impregnating a stretched film in pure water such as ion exchange water or distilled water. The water washing temperature range is usually from 3 ° C to 50 ° C, preferably from 4 ° C to 20 ° C. The impregnation time is usually 2 to 300 seconds, preferably 3 to 240 seconds. The washing step may be a combination of a washing treatment with an iodide solution and a water washing treatment, or a solution of a liquid alcohol such as decyl alcohol, ethanol, isopropanol, butanol or propylene 26 322966 201142381 alcohol may be suitably formulated. After the step, it is preferred to carry out the drying step. As the drying step, it is possible to use a suitable method (e.g., drying by drying, drying, and drying), for example, the drying temperature at the time of heating and drying is usually 20. (: to 95 V, the drying time is usually about 15 minutes. The resin layer by the above dyeing + (10)) has a function as a polarizer. In the present specification, a resin layer having a function as a polarizer is referred to as a polarizing sub-layer, and a polarized light product is referred to as a polarizing product. In this embodiment, a polyethylene glycol-based resin having a degree of saponification of 99.0% by mole is used for the resin layer, and in the stretching step (S2〇), uniaxial stretching is performed at a stretching ratio of twice the magnification. , * Good dyeing speed in the dyeing step (10)). Further, a polyvinyl alcohol-based tree having a high degree of saponification is used, and the dyeing speed is lowered in the dyeing step (S3G), and the dyeing is insufficient. [Coating step (S40)] In the polarizing laminated film, a protective film is bonded to the surface on the side opposite to the surface of the substrate side of the polarizing layer to obtain a multilayer film as a bonding protective film. The method ' exemplifies a method in which the transfer agent is applied to the polarizing sub-layer 12 and the protective film 14 to bond the polarizing sub-layer 12 and the protective film 14 with an adhesive. A material suitable as a protective film is as described in the constitution of the above polarizing plate. Further, a material suitable for use as an adhesive, an adhesive, and a preferred method of bonding the polarizing layer 12 and the protective film 14 are as described in the constitution of the above polarizing plate. [Peeling Step (S50)] The method for producing the polarized plate of the present embodiment is as shown in Fig. 4, after the bonding film (S40) of the polarizing layer 12 of the polarizing laminated film is bonded to the protective film 322966 27 201142381 A stripping step (S50) is performed. In the peeling step (S50), the base film is peeled off from the multilayer film. The peeling method of the base film is not particularly limited, and it can be peeled off in the same manner as the peeling step of applying a peeling film to a general adhesive-attached polarizing plate. After the bonding step (S40) of the protective film, it may be directly peeled off immediately, or may be wound up in a roll shape, and then peeled off in a separate peeling step. (Examples) Hereinafter, examples and comparative examples are disclosed to more specifically describe the present invention, but the present invention is not limited to the examples. Example 1 A polarizing plate shown in Fig. 2 was produced in accordance with the manufacturing method shown in Fig. 4. (Base film) As the base film, an unstretched polypropylene (PP) film (melting point: 163 ° C) having a thickness of 110 #m was used. (Purchase layer formation step) The polyvinyl alcohol powder was dissolved in hot water at 95 ° C (manufactured by Nippon Synthetic Chemical Co., Ltd., average polymerization degree 1100, saponification degree: 99.5 mol%, trade name: Z-200) It was prepared into an aqueous solution having a concentration of 3% by weight. In the obtained aqueous solution, a crosslinking agent (manufactured by Sumitomo Chemical Co., Ltd., trade name: Sumirez (registered trademark) Resin 650) was added in an amount of 5 parts by weight based on 6 parts by weight of the polyvinyl alcohol powder. The resulting mixed aqueous solution was coated on a substrate film to which corona treatment was applied by a micro-gravure coater, and dried at 80 ° C for 10 minutes to form a primer layer having a thickness of 0.2 g. 28 322966 201142381 (Resin layer formation step) The polyvinyl alcohol powder is dissolved in hot water at 95 ° C (manufactured by Kuraray Co., Ltd., average polymerization degree 2400, saponification degree 98. 0 to 99. 0 mol%, trade name: PVA124), prepared into a polyvinyl alcohol aqueous solution having a concentration of 8 wt%. The obtained aqueous solution was coated on the primer layer by a lip coater, and dried at 80 ° C for 20 minutes to form a three-layered skin film composed of a base film, a primer layer and a resin layer. (Extension step) The laminate film was stretched uniaxially at 158 times at 160 ° C to obtain a stretched film. The thickness of the resin layer after extension is 6. 1 /z m. (dyeing step) Thereafter, the stretched film was immersed in a 60 ° C warm bath for 60 seconds, and the dyed solution of a mixed aqueous solution of iodine and potassium iodide at 30 ° C was immersed for about 150 seconds to be dyed, followed by a pure water flow at 10 ° C. Wash off excess iodine. Then, it was impregnated with a crosslinking solution of a mixed aqueous solution of boric acid and potassium iodide at 76 ° C for 600 seconds. Thereafter, it was washed with pure water of 10 ° C for 4 seconds, and finally dried at 50 ° C for 300 seconds. A polarizing laminated film is obtained by forming a polarizing layer from the resin layer by the above steps. The following is the ratio of the preparation of each solution. <Staining solution> Water: 10 parts by weight of angstrom: 0.6 parts by weight of potassium iodide: 10 parts by weight of <cross-linking solution> Water: 100 parts by weight of 29 322966 201142381 Boric acid: 9.5 parts by weight of potassium iodide: 5 parts by weight (protective film The mixture is prepared by dissolving polyethylene powder in a hot water of 95 ° C (a ketone average degree of polymerization, trade name: KL_3 (8), prepared into two concentrated strains), and a flat aqueous solution. The obtained aqueous solution is mixed with (4) poly(tetra)=wt% 篁partition of 1 part by weight of a crosslinking agent (manufactured by Sumitomo Chemical Co., Ltd.: 2 weight S^ez (registered trademark) Resin _ ' as an adhesive solution product^ The substrate (4) on the opposite side of the substrate of the photonic layer and the polarizing layer is bonded to the polyethylene (4) adhesive, and then bonded to the protective film (Konica Minami = Precision Optical Co., Ltd. TAC: K4UY). The polarizing plate peeling base obtained from the first layer of the agent layer, the polarizing layer, the primer layer and the five layers of the base is the polarizing plate peeling base (4). The base (four) capacity (four) from the enamel film, the adhesive layer, the low Polarized sublayer thickness (4) Polarized plate made of four layers of 61tr layer. Example 2 This combination: === In addition to the use of polyethylene powder (曰 to 98 5蕈 average polymerization degree 22〇〇, specialization degree 97·5 The method is the same as in Example 1 except for the product name: AH~22. The thickness of the resin layer in the stretched film is 5:1. , the laminating step, the stripping step, the polarizing plate, the polarizing sub-grade, 5. 6-. 322966 30 201142381 As the polyvinyl alcohol for the resin layer, in addition to the use of polyethylene glycol End of the VAM & POVAL (Ltd.), average degree of polymerization 2600, degree of saponification 97.5 mole say 955% 'trade name: JM-26) in Example 1 except both side door means ,, to obtain a stretched film. 3 yin。 The thickness of the resin layer is 5. 3 yin. Further, a dyeing step, a laminating step, a peeling step, and the like were carried out in the same manner as in Example 1. # A polarizing plate of Example 3 of a protective film, an adhesive layer, a polarizing layer, and a primer layer was obtained. The thickness of the polarizing layer is 5. 3em. Comparative Example 1 The polyvinyl alcohol used as the resin layer was the same as the examples except that polyvinyl alcohol powder (average polymerization degree: 1700, saponification degree: 99. 3 mol% or more, trade name: PVA117H) manufactured by Kuraray Co., Ltd. was used. A stretched film was obtained in the same manner. The thickness of the resin layer in the stretched film was 6.3/m. Further, a dyeing step, a bonding step, a peeling step, and the like were carried out in the same manner as in Example i to obtain a polarized light of Comparative Example 1 which was formed of four layers of a protective film, an adhesive layer, a polarizing layer, and a primer layer. board. The thickness of the polarizing layer is 6. 3ym. Comparative Example 2 Polyvinyl alcohol used as the resin layer, except that polyvinyl alcohol (manufactured by Kuraray Co., Ltd.) having an average polymerization degree of 2,400 and a degree of saponification of 99.9 mol% or more, trade name: KURARAY POVAL VF-PS# 7500) A stretched film was obtained in the same manner as in Example 1 except that the draw ratio and the stretching ratio in the stretching step were 4.0 times. The thickness of the resin layer in the stretched film was 6.7/zm. Further, in the same manner as in Example 1, a dyeing step, a bonding step, a peeling step, and the like were carried out to obtain Comparative Example 2 in which four layers of a film, an adhesive layer, a polarizing layer, and a primer layer were formed. Polarizer. The thickness of the polarizing sublayer is 6.7. 31 322966 201142381 Comparative Example 3 Polyvinyl alcohol used as a resin layer. In addition to polyethylene glycol (manufactured by Kuraray Co., Ltd., the average degree of polymerization is 2400', the degree of saponification is 99.9 mol% or more, trade name: KURARAYPOVAL VF-PS #7500) A stretched film was obtained in the same manner as in Example 1 except for the chopped. The thickness of the resin layer in the stretched film is 6 3 β m. Further, a dyeing step, a bonding step, a peeling step, and the like were carried out in the same manner as in Example 1 to obtain a polarizing plate of Comparative Example 3 which was formed of four layers of a protective film, an adhesive layer, a polarizing layer, and a primer layer. . The thickness of the polarizing layer is 6 3 β m 〇 (measurement of polarizing performance) The base film is peeled off to obtain MD penetration of the polarizing plate formed by the protective film, the adhesive layer, the polarizing layer, and the primer layer. The rate and the TD transmittance were measured by a spectrophotometer (manufactured by Sakamoto Seiki Co., Ltd., V71〇〇) equipped with an integrating sphere. The monomer transmittance and the polarization degree at each wavelength are calculated based on the above formulas (1) and (2), and the luminescence factor correction is performed by the 2 degree field of view (C light source) of JIS Z 8701, and the luminescence correction monomer is obtained. The transmittance (Ty) and the luminescence factor correct the degree of polarization (Py). Further, in the measurement of the polarizing plate, the protective film side was used as the inspection side, and the machine was set to allow light to enter the light from the side of the primer layer. The luminescence factor corrected monomer transmittance (Ty) and the luminescence factor corrected polarization (Py) calculated for the polarizing plates of Example 1 and Comparative Examples 1 to 3 are shown in Table 1. ' (Evaluation of the actual installation of the mobile phone) The "auEXILIM mobile phone W53CA" (manufacturer: CAS10 computer company) sold by KDDI Co., Ltd. disassembles and peels off the upper and lower sides of the liquid crystal cell 322966 32 201142381 Light board, take out the liquid crystal unit. The polarizing plates obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were attached to the upper and lower sides of the liquid crystal cell via a pressure-sensitive adhesive. At this time, the absorption axis of the polarizing plate attached to the upper side (viewing side) of the liquid crystal cell is arranged so that the viewing point from the viewing side is reversed by 170 degrees from the short side of the liquid crystal cell. Further, the absorption axis of the polarizing plate attached to the lower side (backlight side) of the liquid crystal cell is arranged such that the viewing point viewed from the viewing side is reversed clockwise by 80 degrees from the short side of the liquid crystal cell. Further, the arrangement angle is the same as that of the absorption axis of the original polarizing plate originally attached to the liquid crystal cell, and the liquid crystal cell of the polarizing plate obtained by attaching the first to third embodiments and the comparative examples 1 to 3 above and below is used again. The mobile phone is composed and the image is displayed. The display state is evaluated by visually determining the clarity of the image in the indoor environment and the dark room. The evaluation results of the polarizing plates of Examples 1 to 3 and Comparative Examples 1 to 3 are shown in Table 1. [Table 1 Degree of saponification (Mohr « Thickness of polarizing layer (^m) Extension ratio (times) Dipping time of dyeing solution (seconds) Ty (8) Py (8) Image determination during mounting Example 1 98.0 to 99.0 6.1仁m 5. 8 times 150 seconds 42.3 99.992 Clear and good display Example 2 97.5 to 98.5 5. 5 /2 m 5. 8 times 150 seconds 40.8 99.997 Clear and good display Example 3 95.5 to 97.5 5. 3 μ m 5.8 times 150 seconds 40. 1 99.997 Clear and good display Comparative example 1 99.3 or more 6. 3 μ m 5.8 times 150 seconds 45.5 97.981 CR low, lack of clear display Comparative example 2 99. 9 or more 6. 7 // m 4.0 times 150 seconds 41.9 97.774 CR low * lack of clear display comparison example 3 99. 9 or more 6. 3 μ m 5. 8 times 150 seconds 45.8 95.052 CR low, lack of clear display 33 322966 201142381 Examples 1 to 3, When the polyvinyl alcohol-based resin having a degree of saponification of 99.0 mol% or less is used, the stretching ratio is more than 5 times, and the desired dyeing time can be obtained as a dyeing time which does not hinder the general production degree. Then, the obtained polarizing plate is used. In the liquid crystal display device, it becomes a clear and good image display. On the one hand, in Comparative Examples 1 and 3, the stretching ratio was more than 5 times due to the use of a polyvinyl alcohol-based resin having a degree of saponification of more than 99. 〇mol%, and the dyeing time was not sufficiently inhibited by the general production degree, Py It is also a low value. Then, the obtained polarizing plate is used in a liquid crystal display device, and the contrast (CR) is low and the image display is lacking in clearness. Further, in Comparative Example 2, the saponification degree exceeds 99.0 mol%. The vinyl alcohol-based resin has a stretching ratio of 5 times or less, and the dyeing time can be sufficiently dyed without hindering the general production level, but Py is low. Then, the obtained polarizing plate is used in a liquid crystal display device to have a contrast ratio (CR). BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an example of a basic layer structure of a polarizing laminated film of the present invention. Fig. 2 is a view showing a polarizing plate of the present invention. A schematic cross-sectional view showing an example of a basic layer structure. Fig. 3 is a flow chart showing an embodiment of a method for producing a polarizing laminated film shown in Fig. 1. Fig. 4 is a view showing polarized light shown in Fig. 2. Board One method of manufacturing a flowchart of the implementation of the patterns. The main reference numerals DESCRIPTION 3,432,296,620,114,238,110 polarizing sublayer 12 is the polarizing film 11 is laminated base film 13 polarizing plate protective film 14 35322966