TW201137460A

TW201137460A - A liquid crystal display device

Info

Publication number: TW201137460A
Application number: TW100104868A
Authority: TW
Inventors: Toshikazu Matsumoto; Ki-Youn Shin
Original assignee: Sumitomo Chemical Co
Priority date: 2010-02-22
Filing date: 2011-02-15
Publication date: 2011-11-01
Also published as: KR101685715B1; TWI521267B; KR20110096491A; CN102162948A; JP2011170234A; CN102162948B

Abstract

A liquid crystal display device which comprises a liquid crystal cell 10 having two cell substrates 11, 12 and a liquid crystal layer 15 interposed between the cell substrates, a front side polarizing plate 20 laminated on the view side of the liquid crystal cell via a first pressure sensitive adhesive layer 40, a rear side polarizing plate 30 laminated on the opposite side of the liquid crystal cell via a second pressure sensitive adhesive layer 50, and a backlight unit 70 placed at outside the read side polarizing plate 30, wherein each of the front side polarizing plate 20 and the rear side polarizing plate 30 has a polarizing film 21, 31 and transparent protective films 25, 26 and 36, 37 on both surfaces of the polarizing film 21, 31, and the ratio of water content W1 of the front side polarizing plate 20 to the water content W2 of the rear side polarizing plate 30, which is W1/W2, is in the range of 1.0 or more and 1.2 or less, is provided.

Description

201137460 六、發明說明：【發明所屬之技術領域] 本發明係-種關於減少液晶面板_曲之液晶顯示裝置。【先前技術】近年來，液晶顯示裝置係活用所謂低耗電、以低電壓運作、輕量且薄形的特長而作為行動電話、pDA、電腦用螢幕、電視等資訊用顯示裝置，e迅速地普及。隨著液晶技術的發展，有各種形式的液晶顯示裝置之提案，而反應速度、對比度、視角狹窄等液晶顯示的問題逐漸已獲排解。然而，因液晶顯示裝置使用偏光板，故若將液晶面板置於渥熱環境下時，會因偏光板吸水而引起液晶面板的翹曲，而有產生顯示色斑之問題。於JP2007-292966-A中，提出了藉由將液晶單元 (liquid crystal cell)兩面所貼合之偏光板的尺寸變化率予以調整，而改善高溫高濕下之液晶面板的翹曲。此外，於JP2003-50313-A中，提出了藉由使用形成有顯示特定之潛變特性（creep characteristic)之黏著劑層的偏光板’ 而改善溼熱環境下之液晶面板的翹曲。但此等改良中，必須對偏光板施以加熱處理等前處理’或對於置於溼熱環境後之液晶面板翹曲所造成的顯禾色斑之改善為不充足。本發明之目的係提供一種即便置於渔熱環境後，其液晶面板的翹曲亦小、且沒有顯示色斑的液晶顯示裝置。本發明者欲解決上述課題而經積極研究’結果發現將前面侧 4 322800 201137460 偏光板的水分率與背面侧偏光板的水分率之比予以調整後’可有效地抑制置於溼熱環境後之液晶面板翹曲並改善顯示色斑，因而完成本發明。【發明内容】 . 換言之’本發明包含下列所述者。 [1] 一種液晶顯示裝置，其具備：具有2片單元基板（cell substrate)與夾於其間的液晶層之液晶單元，於該液晶單元的視認側經由第一黏著劑層而積層之前面侧偏光板，於上述液晶單元之視認侧的相反侧經由第二黏著劑層而積層之背面側偏光板，以及於該背面侧偏光板的外侧所配置之背光模組（back light unit)；其中’前面側偏光板及背面側偏光板各自具有偏光膜與配置於其兩面的透明保護膜，並且，前面側偏光板的水分率W!與背面側偏光板的水分率之比Wl/W2係在L 〇以上1. 2以下之範圍。 [2 ]如[1 ]所δ己载之液晶顯示裝置，其中，前面側偏光板及背面側偏光板之各自位於液晶單元側的透明保護膜係具有 _10至10nm範圍之厚度方向延遲（retardation)值者。 [3]如[1]或[2]所記載之液晶顯示裝置，其中，前面側偏光板及背面側偏光板之各自位於液晶單元側的透明保護膜係由纖維素系樹脂或聚烯烴系樹脂所構成者。 322800 5 201137460 如[1]至[3]中任—項所記載的液晶顯示裝置，其中， Z侧偏光板及背面側偏綠之各自位於距液晶單元較遠 :透明保龍，係具有練於液晶單元侧之透明保護膜许附於誠鴨_絲㈣層的合計厚度更厚的厚 4如[1]至[4]中任-項所記載的液晶顯示裝置，盆中， =1偏光板及背面側偏光板各自之偏光膜與配置;;其兩氣樹π明保護膜’係經由含有聚乙_系樹脂及水溶性環 Μ脂之水系接著劑而貼合。 H如[1]至[4]中任一項所記載的液晶顯示裝置，其中，因活=練及㈣側偏歧各自之偏細，係經由含有成物線照射而硬化之環氧化合物的硬化性接著劑組係]包:[6]:記載的液晶顯示裝置，其中，前述環氧化合物環氣化;子内至V具有1個與脂環式環結合之環氧基的面板提供即使置放於漫熱環境後，其液晶【實施方式】亦、而沒有顯示色斑之液晶顯示裝置。元10第1圖’本發明之液晶顯示艘置係具備：液晶單層而該液晶單元之視認侧經由第一黏著劑層40而積經由第ί光板2G、於上述液晶單元之視認侧的相反側該背點著劑層50而積層之背面侧偏光板30、以及於偏光板之外側（亦即與液晶單元10為相反側）所 322800 6 201137460 1=光模組70。由液晶單元10、於該液晶單元的視認 =”=_層4()，層之前面側偏光板2()、以及於液日日早兀的相反側經由第二黏著側偏光板30,來形成液“板⑽。^而積層之背面於液晶單元1〇之視認側所配 < 係具有：偏細2卜與於其⑽經由^=偏光板2〇 ’ 層之透明保護膜25, 26。齊丨（無圖示）而積於液晶單元1 〇之視認側之相反侧（亦所配置的背面侧偏光板3 G亦同樣地，/光模組7 0側）於其兩面經由接著劑（無圖示）之、·偏光膜3卜與雖是將液晶面板60與背光模组曰^明保護膜35,36。示裝置，但在將該液晶顯示敦置放置衫而構成液晶顯晶面板60會產生翹曲，液晶面板的座熱環境下時’液 70異常貼近，在嚴重時會_ ^料先模，且 3裒境下時，液部分會與將其斑於液曰a，板60,右為了不讓其往視認侧倒下而以箱體或金屬框固定’則在將液晶顯示骏置放置於渔熱一晶面板60會產生翹曲，而液晶面板肋的… 固定的箱體或金屬框接觸，而亦於是，本發明中係將前面侧偏光板〇、 W,，背面側偏光板30的水分率作发w 的水为率作為為L0以上L2以下之範圍。上並令兩者之比祕分率W!與背面側偏光板3 0之水=:面側偏光板2 0之水兩者滿足下式⑷者。的_，係相當於 (a) 1. 0^Wi/W2Sl. 2 322800 201137460 換言之’以使前面側偏光板2 侧偏光板3。之水分率w，方式構成係為m面而得到即使置於溼熱環境後，亦可“發現藉此曲，且不會確認到顯示色斑出現，並面板6〇的麵液晶顯示裝置。其顯示品質優良之此外，尚發現使前面侧偏光板2 之各自位於距液晶單元10較遠側的 =偏光板30 度變成比位於液晶單元1〇侧的膜°、，，35之厚其之黏著劑層4〇,50的合計厚度還==36與貼附於此，若使前面侧偏光板2〇及更厚係為有效。如距液晶單元1〇較遠側的透 :先板30之各自位於即便使位於液晶單元i。側的提升特別是在使用對角32忖（約^膜26, 36變薄’亦能偏光板時的處理性，且同時^⑽以上之大型尺寸之有效。對於抑制液晶面板60的輕曲為以下，針對構成本發明的液曰 =:附之符號而依序作詳:：各構件，參基板間之^基板u，12、與夾於該等置板。此外，本發明的液晶顯示裝質所構成者。①，亦可為由此領域所採用之各種物 [偏光膜] 322800 8 201137460 構成前面侧偏光板20及背面侧偏光板30之偏光膜 21，31 ’通常係經由下述步驟所製造：將聚乙烯醇系樹脂膜予以一轴延伸之步驟，以二色性色素將聚乙烯醇系樹脂膜作染色並藉此使二色性色素吸附之步驟，將吸附有二色性色素之聚乙烯醇系樹脂膜以硼酸水溶液處理之步驟，以及在經棚酸水溶液處理後進行水洗之步驟。聚乙烯醇系樹脂係可藉由將聚醋酸乙烯酯系樹脂予以皂化（saponification)而製造。就聚醋酸乙烯酯系樹脂而σ ’除了屬於醋酸乙稀g旨的均聚物之聚醋酸乙稀|旨以外，亦可為醋酸乙烯酯和可與其共聚的其他單體之共聚物。可與醋酸乙烯酯共聚的其他單體則可舉例如：不飽和羧酸類、烯烴類、乙烯醚類、不飽和颯酸類、具有銨基之丙烯醯胺類等。聚乙烯醇系樹脂之皂化度通常為85至1〇〇莫耳％左右，以98莫耳％以上為佳。聚乙烯醇系樹脂亦可為經改質者，例如可用：經醛類改質之聚乙烯縮曱醛（P〇lyvinyl formal)或聚乙婦縮乙駿（p〇lyvinyl紙糾等。聚乙稀醇系樹脂之聚合度通常為U〇〇至1〇, 000左右，以i 500 至5, 000左右為佳，b〇() 將此等聚乙烯醇系樹脂予以製膜所成者，係被 =光膜之原片膜。將聚乙烯醇系樹脂予以製膜之方法並，殊關，可料遍已知之方法製膜。聚 = 之原片膜的膜厚則為例如1〇至15〇…，以：：以m左右為佳。 υ·^100 322800 9 201137460 聚乙烯醇系樹脂膜的一軸延伸，可於以二色性色素進行染色前、與染色同時、或於染色後進行。若於染色後進行一軸延伸，則此一軸延伸可於棚酸處理之前進行、亦可於硼酸處理中進行。當然，亦可在此處所表示之複數階段中進行一軸延伸。關於一轴延伸’可採用於周速不同的滾輪（roll)間往一軸延伸之方法’或使用熱滾輪而往一軸延伸的方法等。另外，一轴延伸可藉由在空氣中進行延伸之乾式延伸而施行’亦可藉由使用水等溶劑，在使聚乙煉醇系樹脂膜膨潤之狀態下進行延伸之濕式延伸而施行。延伸倍率則通常為3至8倍左右。關於以二色性色素將聚乙烯醇系樹脂膜進行染色，可藉由例如於含有二色性色素之水溶液中浸潰聚乙稀醇系樹脂膜之方法而進行。關於二色性色素，具體上係使用碘或二色性有機染料。對於聚乙烯醇系樹脂膜，係以在染2處理前預先浸潰在水中而施行使其膨潤之處理為佳。使用破作為二色性色素時，通常採用於含有毕或班化钟之水溶液巾浸潰聚乙騎系樹脂膜料行染色之方法。此水溶液中的峨之含量，相對於水1〇〇重量份，通常為0. 01至1重量份左右，碘化鉀的含量則相對於水1〇〇重量份’係0.5至20重量份左右。用於染色的水溶液之溫度，通常係20至歌左右。另外，於此水溶液中的浸潰時間（染色時間）通常係20至^⑼秒左右。另一方面，使用二色性的有機染料作為二色性色素時，通常採用於含有水溶性的二色性有機染料之水溶液中 322800 10 201137460 浸，聚乙树系樹脂臈以進行染色之方法。此水溶液中的一性有，染料含量，相對於水100重量份，通常為lxlr 液亦左右，以1x10 3至1重量份為佳。此染料水溶 ,、° 3有硫酸鈉等無機鹽作為染色助劑。用於染色的二色陡有機染料水溶液之溫度，通常係2G至8G°C左右。另外於此水容液中的浸潰時間（染色時間）通常係1〇至 1，800秒左右。 1 f以一色性色素染色後的硼酸處理，係可藉由將經染色t乙歸醇系樹脂膜浸潰於含有棚酸的水溶液之方法進灯。3有蝴酸之水溶液的硼酸含量，相對於水100重詈份，通常為2至15番吾於4*丄 _ 重里伤左右，以5至12重量份為佳。佶用破作為二色性色素時，此含有舰之水溶液以含有碟為佳。含有硼酸之士、办 ^ 之災各液中的碘化鉀含量，相對於水1〇〇刀L吊為0· 1至15重量份左右，以5至12重量份 ==含有顯之水缝巾之浸潰時嶋色時間）通，、，200秒左右，以150至600秒左右為佳、以 200至_秒為更佳β而含有喊之水溶液之係5〇°C以上，以心阶為佳、以60至8(TC為更^ 硼酸處理後的聚乙烯醇系樹脂膜，通常會作水洗處理。水洗處理係可藉由例如㈣酸處理後的聚乙婦醇系樹脂膜浸潰於水中之方法而進行。水洗處理之水溫通常為5至4〇 °C。另外，浸泡時間通常為1至120秒左右。於水洗後施以乾燥處理，而得到偏光膜。乾燥處理係可用熱風乾燥機或遠紅外線加熱器進行。乾燥處理的溫产、 322800 11 201137460 通申為30至100°C左右，以50至8(TC為佳。乾燥處理的時間通常為6Q至_秒左右，以120至_秒為佳。藉由乾燥處理’使偏光膜中的水分率降低至實用程度。此水分率通常為5至2〇重量％左右，以8至15重量％為佳。水分率右低於5重量％，則偏光膜的可撓性喪失，乾燥後可能發生損傷或斷裂。此外，水分率若超過2〇重量％，則會有熱安定性不足的傾向。如上所述操作，可製造在聚乙烯醇系樹脂膜吸附定向有二色性色素之偏光臈。所得到的偏光膜，可將其其厚度製成例如5至4〇em左右。 [位於距液晶單元較遠側的透明保護膜] 關於前面側偏光板2〇及背面側偏光板3〇，其分別位於距液晶單元10較遠側的透明保護膜25,35，係以由透明性、機械強度、熱安定性、水分遮蔽性等優良之材料所構成者為佳。此類材料則可舉例如：以甲基丙烯酸甲酯系樹脂為代表例的丙烯酸系樹脂、以聚丙烯系樹脂為代表例的鏈狀聚烯煙系樹脂、環狀聚烯烴系樹脂、纖維素系樹脂、聚對苯二甲酸乙二酯系樹脂、聚對苯二甲酸丁二酯系樹脂、聚氯乙烯系樹脂、苯乙烯系樹脂、丙烯腈/苯乙烯系共聚樹脂、丙稀腈/丁二烯/苯乙烯系共聚樹脂、聚醋酸乙烯酯系樹脂、聚偏一氯乙稀（polyvinylidene chloride)系樹脂、聚醯胺系樹脂、聚縮醛系樹脂、聚碳酸酯系樹脂、改質聚苯醚系樹脂、聚碾系樹脂、聚醚砜系樹脂、聚芳酯系樹脂、聚醢胺酿亞胺系樹脂、聚醯亞胺系樹脂等。 12 322800 201137460 此等樹脂可各自單獨使用、或將2種以上組合使用。另外’亦可將對於此等樹脂進行任意之聚合物改質而成的樹脂作為透明保護膜用之材料。聚合物改質可列舉例如·共聚合、交聯、分子末端改質、立體規則性控制，包含伴隨異種聚合物彼此間的反應之混合等。上述樹脂之中’曱基丙烯酸甲酯系樹脂、聚丙烯系樹脂、纖維素系樹脂、或聚對苯二甲酸乙二酯系樹脂係適合作為位於距液晶單元1〇較遠側的透明保護膜25, 35的材料。曱基丙烯酸甲酯系樹脂係含有5〇重量％以上的甲基丙烯酸甲醋單位之聚合物。曱基丙烯酸甲酯單位的含量以70 重量％以上為佳，亦可為100重量％。曱基丙烯酸曱酯單位為100重量％的聚合物，係以使曱基丙烯酸甲酯單獨聚合所得者。關於甲基丙烯酸曱酯系樹脂’通常可將以曱基丙烯酸曱醋為主成分的單官能單體於自由基聚合起始劑以及鏈轉移劑之共存下聚合而得。亦有在單官能單體中調配可與甲基丙烯酸甲酯共聚合之成分並使其共聚合之情形，此外，依所需而亦有使少量之多官能單體進行共聚合之情形。關於可與甲基丙烯酸曱酯共聚合之單官能單體，則可舉例如：曱基丙烯酸乙酯、曱基丙烯酸丁酯、，基丙烯酸環己酯、甲基丙烯酸苯酯、曱基丙烯酸苯曱酯、曱基丙烯酸2-乙基己酯、及甲基丙烯酸2-羥基乙酯等曱基丙烯酸曱酉旨以外的曱基丙烯酸酯類；丙烯酸曱酯、丙烯酸乙酯、丙 13 322800 201137460 稀酸丁酯、丙烯酸環己酯、丙烯酸苯酯、丙烯酸苯甲酯、以及丙烯酸2-乙基己酯等丙烯酸酯類；丙烯酸羥基甲酯、丙烯酸2-羥基乙酯、丙烯酸2-羥基丙酯、丙烯酸3-羥基丙S旨、以及丙埽酸2-經基丁 S旨等丙稀酸經基烧基醋類；甲基丙烯酸、及丙烯酸等不飽和酸類；氣苯乙烯、及溴苯乙烯等齒化苯乙烯類；乙烯基甲苯、及α-甲基苯乙烯等取代苯乙烯類；丙烯腈、及曱基丙烯腈等不飽和腈類；順丁婦二酐、及棒康酐（citraconic anhydride)等不飽和酸酐類；苯基馬來醯亞胺、及環己基馬來醯亞胺等不飽和醯亞胺類等。此等單體可各自單獨使用或將兩種以上組合使用關於可與甲基丙烯酸曱酯共聚合之多官能單體，則可舉例如.乙·一if-一（曱基）丙烤酸酉旨、二乙二醇二（甲美）丙烯酸酯、三乙二醇二（甲基）丙烯酸酯、以及四乙二醇二（甲基）丙烯酸酯等將乙二醇或是其低聚物之兩側末端羥基以丙烯酸或曱基丙烯酸進行醋化者；將丙二醇或其低聚物之兩側末端羥基以丙烯酸或曱基丙烯酸進行酯化者；新戊二醇二（甲基）丙烯酸酯、己二醇二（甲基）丙烯酸酯、及丁二醇二（甲基）丙稀酸醋等將二元醇的經基以兩埽酸或甲基丙烯酸進行醋化者；雙⑲A、雙酷A的環氧垸（alkylene〇xide) 加成物、或是將此等的鹵素取代體之兩側末端經基以丙稀酸或曱基丙稀酸進行醋化者；將三經甲基丙燒及新戊四醇等多元靜以丙稀酸或▼基丙烯酸進行酿化者；於具有兩個以上經基之化合物的末端經基1環加成丙稀酸環氧丙酯 (glycidyl啊㈣）或曱基丙埽酸環氧丙§旨的環氧基者； 322800 14 201137460 於琥珀酸、己二酸、對苯二甲酸、鄰笨二甲酸、以及此等之函素取代體等二元酸類或是此等之環氧烧加成物，開環加成丙烯酸環氧丙醋或甲基丙烯酸環氧丙醋的環氧基者； (曱基）丙稀酸烯㈣；二乙稀基笨等芳香族二乙烯基化合物等。使多官能單體共聚合時，纟中又以使用乙二醇二甲基丙烯酸酯、四乙二醇二甲基丙烯酸酯、新戊二醇二甲基丙烯酸酯為佳。 ι 亦可使用進行甲基丙烯酸曱酯系樹脂所具有之官能基間的反應而經改質的樹脂。此等官能基間的反應則可舉例如：曱基丙烯酸甲酯的甲基酯基與2_(羥基甲基）丙烯酸曱酯的羥基之在高分子鏈内脫曱醇縮合反應、丙烯酸的羧基與2_(羥基甲基）丙烯酸曱酯的羥基之在高分子鏈内脫水縮合反應。關於甲基丙烯酸甲酯系樹脂，其市售品可容易取得。若要列舉市售品之例，分別有商品名稱為：住友化學股份公司所販售的“SUMIPEX”、三菱Rayon股份公司所販售的 “ACRYPET”、旭化成股份公司所販售的“Delpe1;，，、kuraray 股伤公司所販售的“Parapet”、日本觸媒股份公司所販售的 “ACRYCURE”等。聚丙烯系樹脂係以丙烯為主成分之鏈狀烯烴單體的聚合物，通常是重複單元之8〇%以上為由丙烯所構成之鏈狀烯烴系樹脂。聚丙烯系樹脂可為丙烯之均聚物，亦可為以丙烯為主體，並以可與其共聚合之共單體（c〇m〇n〇mer) 為1至20重量％、更佳為3至1〇重量％的比例進行共聚合 15 322800 201137460 而成的共聚合物。當製成以丙烯為主成分之共聚合物時，可與其共聚合的共單體係以乙烯、1-丁烯、或1-己烯為佳。其中，由於會獲得透明性較優良的聚丙烯樹脂，故以使乙烯為1至20 重量較佳為3至10重量°/◦的比例進行共聚合者為佳。乙稀的共聚合比例若為1重量％以上，則會顯現提升透明性的效果。另一方面，若乙烯的共聚合比例超過20重量％，則樹脂熔點下降，損及透明保護膜所要求的耐熱性。聚丙烯系樹脂中，係以20°C時可溶於二曱苯的成分 (CXS成分：CXS為cold xylene soluble的縮寫）之含量為 1重量％以下為佳，0.5重量％以下為更佳。聚丙烯系樹脂中，以CXS成分為1重量％以下、甚至0. 5重量％以下之聚丙烯的均聚物為適宜之一例。關於聚丙烯系樹脂，其市售品可容易取得。若要列舉市售品之例，則分別有商品名稱為：Pr i mepo 1 ymer股份公司所販售的“Primepolypro”、日本Polypro股份公司所販售的“N0VATEC”及“WINTEC”、住友化學股份公司所販售“住友 Nobrene”、Sunal lomer 股份公司所販售的“Sunal 1〇mer” 等。纖維素系樹脂可為纖維素的有機酸酯或混合有機酸醋’其係使纖維素的經基中之氫原子的—部分或全部經乙醯基、丙酿基、及/或丁酿基所取代者。可舉例如：由素的醋酸S旨、丙_旨、頂自旨、此等之混合自旨等成去。其中尤以三醋酸纖維素、二醋酸纖維素、纖維素酷酸酉旨丙 322800 16 201137460 酸酯、纖維素醋酸酯丁酸酯等為佳。 ^對笨二甲酸乙二®旨系樹脂係重複單S之80莫耳。/。以上為由對苯二甲酸乙二酉旨所構成的樹脂，亦可含有其他的二疋酸成分及/或其他的二元醇成分。其他的二元酸成分可舉例如：間笨二甲酸、4, 4，-二羧基二苯基、4, 4，_二羧基二苯基酮、雙（4-羧基笨基）乙烷、己二酸、癸二酸、丨，4-二竣基環己烯等。此外，其他的二元醇成分則可舉例如：丙二醇、丁二醇、新戊二醇、二乙二醇、環己二醇、雙酚 Α的環氧乙烧（ethylene oxide)加成物、聚乙二醇、聚丙二醇、聚四亞甲基二醇等。此等其他之二元酸成分或其他的二元醇成分，可依需要將兩種類以上作組合使用。亦可併用對羥基安息香酸或對一沒-羥基乙氧基安息香酸等羥基羧酸。此外’其他的共聚合成分亦可使用含有少量的醯胺鍵、胺酯鍵（urethane bond)、醚鍵、碳酸酯鍵等之二元酸成分或是二元醇成分。關於聚對苯二曱酸乙二酯系樹脂的製造方法，係採用：將對苯二曱酸及乙二醇（以及因應需要之其他的二元酸或其他的二元醇）直接聚縮合的方法、讓對苯二甲酸的二燒基酯與乙二醇（以及因應需要之其他的二元酸的二烷基酉旨或其他的二元醇）一面進行醋交換反應一面聚縮合的方法、讓對苯二曱酸（以及因應需要之其他的二元酸）及乙二醇酉旨 (以及因應需要之其他的二元醇酯）在觸媒的存在下進行聚縮合的方法等。並且，亦可因應需要進行追加之固相聚合而使分子量增加，或減少低分子量成分® 17 3228〇〇 201137460 將以上所述之樹脂製成偏光板用之透明保護膜的製膜方法’只要選擇對應各樹脂之適宜方法即可。例如可使用：使溶解於溶劑之樹脂在金屬製的帶（band)或筒（drum) 上流延，並將溶劑乾燥去除而得到膜之溶劑澆鑄法 (solvent casting method);將樹脂加熱至熔融溫度以上，並將其混練後從模具（die)中擠壓出，經冷卻而得到膜之熔融擠壓法等。熔融擠壓法可擠壓出單層膜，亦可同時擠壓出多層膜。此等樹脂膜，可容易取得其市售品。就列舉市售之膜而言’若為曱基丙烯酸曱酯系樹脂膜，則其商品名稱分別如：住友化學股份公司所販售的“Techno 1 loy’’、三菱Rayon 股份公司所販售的“ACRYLITE”及“ACRYPLEN”、旭化成股份公司所販售的“Delaglas”、Kuraray股份公司所販售的 “Paraglas”及“Comoglas”、日本觸媒股份公司所販售的 “ACRYCURE”等。若為聚對苯二曱酸乙二酯系樹脂膜，則其商品名稱分別如：三菱化學股份公司所販售的“N0VACLEAR”、帝人化成股份公司所販售的“A-PET SHEET”等。若為聚丙婦系樹脂膜，則其商品名稱分別如：FILMAX股份公司所販售的“FILMAX CPP膜”、Sun. tox股份公司所販售的“Suntox”、 Tohcello股份公司所販售的“Tohcello”、東洋紡績股份公司所販售的“東洋纺Pylen膜”、Toray advanced film股份公司所販售的“Torayfan”、日本p〇iyace股份公司所販售的“Japan Polyace”、FUTAMURA化學股份公司所販售的 “太閣FC”等。此外，若為纖維素系樹脂膜時，則其商品名 18 322800 201137460 稱分別如：富士 film股份公司所販售的“ Fujitac TD，，、 Konica MinoUa Opto 股份公司所販售的“ K〇nica Μίη〇ι^ TAC 膜 KC” 等。對於配置於距液晶單元1〇較遠側而為視認側的透明保護膜25,可賦予其霧度（haze)而使其表現出防眩性。霧度的賦予方法係例如採用··於構成透明保護膜的原料樹脂中混入無機微粒子或有機微粒子並進行膜化之方法；藉由多層擠壓出而將混有微粒子的樹脂與未混有微粒子的^脂製成二層膜，或者將混有微粒子的樹脂作為外層而製成三層膜的方法；將無機微粒子或有機微粒子與硬化性黏結劑 (bmder)樹脂混合之塗佈液塗佈於膜的單侧，使黏結劑樹脂硬化而設置防眩層之方法等。為了賦予霧度所使用的無機微粒子可舉例如：氧化矽 (silica)、膠質氧化矽、氧化鋁…比…⑽）、鋁酸膠 sol)、鋁矽酸鹽、氧化鋁—氧化矽複合氧化物、高嶺土、滑石、雲母、碳酸鈣、磷酸鈣等。另外，有機微粒子則可舉例如：交聯聚丙烯酸粒子、曱基丙烯酸甲酯/苯乙烯共聚合物樹脂粒子、交聯聚苯乙烯粒子、交聯聚甲基丙烯酸甲酯粒子、聚矽氧（silicone；^^脂粒子、聚醯亞胺粒子等。對透明保護膜賦予霧度時，其霧度值以在6至45%之範圍内為佳。透明保護膜的霧度若低於6%，則無法充分顯現出防眩效果。另一方面，若透明保護膜的霧度高於45% ’ 則配置該透明保護膜之液晶顯示裝置的晝面會變得白化而導致晝質不佳。霧度係以相對於全光線透過率之擴散透過 19 322800 201137460 率的比所定義之值，可依據JISK7136並使用市售之霧度計加以測定。市售之霧度計則可舉例如：村上色彩技術研究所股份公司所販售的“HM-150”等。於測定霧度值時，為了防止薄膜的翹曲，較佳係使用例如：使用光學上為透明之黏著劑’以使防眩面成為表面之方式將膜面與玻璃基板貼合而成之測定樣本。關於配置於距液晶單元10較遠侧而為視認侧之透明保護膜25、以及為背光模組側之透明保護膜35,在其各自之外侧可設置包含導電層、硬塗層、低反射層等之機能層。上述構成防眩層的含有黏結劑之樹脂之塗佈液，亦可選擇能表現此等機能之樹脂組成物。 [位於液晶單元側之透明保護膜] 關於第1圖所示之前面側偏光板20及背面側偏光板 30’構成其位於液晶單元1〇侧之透明保護膜26, 36的樹脂材料，可使用與以上之位於距液晶單元10較遠侧之透明保護膜25、35所述者相同者。其中以容易控制延遲值且亦容易取得之方面來說’以使用纖維素系樹脂、或是包含鏈狀聚烯烴系樹脂或環狀聚烯烴系樹脂之聚烯烴系樹脂為佳。在此所明之環狀聚稀煙系樹脂’係指將例如降获婦 (norbornene )及其他的環戊二烯衍生物等環狀烯烴單體於觸媒存在下進行聚合而得者。若使用此等環狀聚烯烴系樹脂，即可容易獲得具有後述之預定之延遲值的透明保護膜。 ί哀狀聚稀组系樹脂係可舉例如：藉由將環戊二稀與稀烴類或是與（曱基）丙烯酸或其酯類進行狄耳士-阿德爾反 322800 20 201137460 應（Diels-Alder reaction)而得之降莰烯或其衍生物作為單體，進行開環複分解聚合（ring~opening metathesis polymerization)，然後進行氫化而得之樹脂；藉由將二環戊二烯與烯烴類或是與（甲基）丙烯酸或其酯類進行狄耳士阿德爾反應而得之四環十二烯或其衍生物作為單體，進行開環複分解聚合’然後進行氫化而得之樹脂；由降莰稀、四環十二稀、該等之衍生物、及其他的環狀烯單體中選出之至少兩種單體’同樣地進行開環複分解共聚合，然後進行氫化而得之樹脂；於降获烯、四環十二烯、或該等之衍生物等孩狀稀’使具有鏈狀烯及/或乙烯基之芳香族化合物加成共聚合而得之樹脂等。關於環狀聚烯烴系樹脂，可容易取得其市售品。若要列舉市售品之例’分別有商品名稱為：TOP AS ADVANCED POLYMERS GmbH所生產且在日本由P〇lypiastics股份公司所販售的“T0PAS”、JSR股份公司所販售的“ART0N”、曰本 zeon股份公司所販售的“ZE0N0R”及“ΖΕ0ΝΕΧ”、三井化學股份公司所販售的“apel”等。鏈狀聚烯烴系樹脂之典型的一例，係聚乙稀系樹脂及聚丙烯系樹脂。其中，較適用者係丙烯的均聚物，或是以丙烯為主體且使可與其共聚合的共單體（例如乙稀）以1至 20重量％(較佳為3至10重量«的比例進行共聚合而成的共聚合物。關於以纖維素系樹脂或聚烯烴系樹脂等製成膜之製膜方法，只要適當選擇對應各樹脂之方法即可。例如係採 322800 21 201137460 用·將溶解於溶劑之樹脂在金屬製的帶或筒上流延並將溶劑乾燥去除而得到膜之溶劑澆鑄法；將樹脂加熱至熔融溫度以上，將其混練後從模具中擠壓出，經冷卻鼓冷卻而得到膜之熔融擠壓法等。其中，對於聚烯烴系樹脂，從生產性的觀點來看，以採用熔融擠壓法為佳。另一方面纖維素系樹脂一般係經由溶劑流延法製膜。液晶單元為橫向電場（IPS: In-Plane Switching)模式時，為了使該IPS模式液晶單元不損及本來具有的廣視角特性’位於液晶單元10侧之透明保護膜26,36之厚度方向的延遲Rth係以-10至10nm的範圍為佳。厚度方向的延遲Rth係將面内之平均折射率減去厚度方向之平均折射率後的值再乘以膜的厚度所得之值，如下述式（b)所表示。另外，面内的延遲Re係將面内之折射率差乘以膜厚度所得之值，如下述式（c)所表示。201137460 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a liquid crystal display device for reducing a liquid crystal panel. [Prior Art] In recent years, liquid crystal display devices have been used as display devices for information such as mobile phones, pDA, computer screens, and televisions by using so-called low-power consumption, low-voltage operation, light weight, and thin features. popular. With the development of liquid crystal technology, there have been proposals for various types of liquid crystal display devices, and liquid crystal display problems such as reaction speed, contrast, and narrow viewing angle have been gradually solved. However, since the liquid crystal display device uses a polarizing plate, when the liquid crystal panel is placed in a hot environment, the liquid crystal panel is warped due to water absorption of the polarizing plate, and there is a problem that display color spots are generated. In JP2007-292966-A, it is proposed to improve the warpage of the liquid crystal panel under high temperature and high humidity by adjusting the dimensional change rate of the polarizing plate bonded to both sides of the liquid crystal cell. Further, in JP 2003-50313-A, it is proposed to improve the warpage of the liquid crystal panel in a moist heat environment by using a polarizing plate apos which is formed with an adhesive layer which exhibits a specific creep characteristic. However, in such improvements, it is necessary to apply a pretreatment such as heat treatment to the polarizing plate or to improve the stain of the liquid crystal panel after being placed in a hot and humid environment. SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device which has a small warpage of a liquid crystal panel even after being placed in a fishing heat environment and which does not display a color unevenness. The present inventors have actively studied the results of the above-mentioned problems, and found that the ratio of the moisture content of the front side 4 322800 201137460 polarizing plate to the moisture content of the back side polarizing plate is adjusted to effectively suppress the liquid crystal after being placed in a hot and humid environment. The panel warps and improves the display of stains, thus completing the present invention. SUMMARY OF THE INVENTION In other words, the present invention encompasses the following. [1] A liquid crystal display device comprising: a liquid crystal cell having two cell substrates and a liquid crystal layer interposed therebetween, wherein the visible side of the liquid crystal cell is laminated on the front side via the first adhesive layer a back side polarizing plate laminated on the opposite side of the viewing side of the liquid crystal cell via the second adhesive layer, and a backlight unit disposed on the outer side of the back side polarizing plate; Each of the side polarizing plate and the back side polarizing plate has a polarizing film and a transparent protective film disposed on both surfaces thereof, and the ratio W1/W2 of the moisture ratio W! of the front side polarizing plate to the moisture ratio of the back side polarizing plate is L 〇 The range of 1.2 or less above. [2] The liquid crystal display device according to [1], wherein the transparent protective film on the liquid crystal cell side of each of the front side polarizing plate and the back side polarizing plate has a thickness direction retardation in the range of _10 to 10 nm (retardation) ) value. [3] The liquid crystal display device according to the above [1], wherein the transparent protective film on the liquid crystal cell side of each of the front side polarizing plate and the back side polarizing plate is made of a cellulose resin or a polyolefin resin. The constituents. The liquid crystal display device according to any one of the preceding claims, wherein the Z-side polarizing plate and the back side are each greenish from the liquid crystal cell: the transparent Baolong has a training The transparent protective film on the side of the liquid crystal cell is attached to the thickness of the thicker layer of the thicker layer of the shovel-four (four) layer. The liquid crystal display device as described in any one of [1] to [4], in the pot, =1 polarizing plate And a polarizing film and an arrangement of each of the back side polarizing plates; and the two gas tree π bright protective film' is bonded via a water-based adhesive containing a polyethylene-based resin and a water-soluble cyclic resin. The liquid crystal display device according to any one of the above aspects of the present invention, wherein the liquid crystal display is hardened by irradiation with a product line due to the partial deviation of the activity and the (4) side eccentricity. [Claim] [6] The liquid crystal display device of the invention, wherein the epoxy compound is cyclized; and the panel having an epoxy group bonded to the alicyclic ring in V to provide even After being placed in a hot environment, the liquid crystal [embodiment] is also a liquid crystal display device that does not display a color spot. The first embodiment of the liquid crystal display system of the present invention includes: a liquid crystal single layer, and the viewing side of the liquid crystal cell is passed through the first adhesive layer 40 via the first light plate 2G, opposite to the viewing side of the liquid crystal cell The back side polarizing plate 30 which is laminated on the side of the backing agent layer 50 and the outer side of the polarizing plate (that is, the side opposite to the liquid crystal cell 10) are 322800 6 201137460 1 = optical module 70. The liquid crystal cell 10, the viewing of the liquid crystal cell = "= _ layer 4 (), the layer front side polarizing plate 2 (), and the opposite side of the liquid day, the second adhesive side polarizing plate 30 Form a liquid "plate (10). ^ The back side of the laminate is provided on the viewing side of the liquid crystal cell 1', and has a transparent protective film 25, 26 which is a thin layer 2 and a layer (2) via a polarizing plate 2'. On the opposite side of the viewing side of the liquid crystal cell 1 (the same as the back side polarizing plate 3 G or the optical module 70 side), the adhesive film (not shown) is formed on both sides via an adhesive ( The polarizing film 3 and the protective film 35, 36 of the liquid crystal panel 60 and the backlight module are not shown. The device is shown, but the liquid crystal display panel 60 is formed by the liquid crystal display, and the liquid crystal display panel 60 is warped. When the liquid crystal panel is in a hot environment, the liquid 70 is abnormally close, and in severe cases, the mold is first, and 3 In the case of the environment, the liquid part will be spotted on the liquid 曰 a, the plate 60, and the right side will be fixed in the box or the metal frame in order to prevent it from falling down to the side of the viewing side. The hot crystal panel 60 is warped, and the fixed panel or the metal frame of the liquid crystal panel rib is in contact with each other, and in the present invention, the moisture of the front side polarizing plate 〇, W, and the back side polarizing plate 30 is used. The water rate of the rate w is taken as the range of L0 or more and L2 or less. The ratio of the difference between the two is W! and the water of the back side polarizing plate 30 = water of the surface side polarizing plate 2 0 Both satisfy the following formula (4). _, is equivalent to (a) 1. 0^Wi/W2Sl. 2 322800 201137460 In other words, the front side polarizing plate 2 side polarizing plate 3 is made. The moisture content rate w is a m-plane, and it is possible to obtain a surface liquid crystal display device in which the display is not found and the display color is not observed even after being placed in a hot and humid environment. In addition, it has been found that the polarizing plate 30 of each of the front side polarizing plates 2 located farther from the liquid crystal cell 10 becomes a thicker than the film of the film side of the liquid crystal cell 1 and 35. The total thickness of the layers 4, 50 is also == 36 and attached thereto, and it is effective to make the front side polarizing plate 2 and thicker. For example, the transparent front side of the liquid crystal cell 1 is: It is effective to adjust the side of the liquid crystal cell i, especially when using a polarizing plate of 32 忖 (the film 26, 36 is thinned), and it is effective at a large size of (10) or more. The light curve of the liquid crystal panel 60 is suppressed as follows, and the liquid 曰=: attached symbols of the present invention are sequentially described in detail: each member, the substrate u, 12 between the reference substrates, and the plate. Further, the liquid crystal display package of the present invention is composed of one. Various materials used [polarizing film] 322800 8 201137460 The polarizing film 21, 31' constituting the front side polarizing plate 20 and the back side polarizing plate 30 is usually manufactured by the following steps: a polyvinyl alcohol resin film is applied to one axis In the step of stretching, the polyvinyl alcohol-based resin film is dyed by a dichroic dye to adsorb the dichroic dye, and the polyvinyl alcohol-based resin film having the dichroic dye adsorbed thereon is treated with an aqueous solution of boric acid. And a step of washing with water after treatment with an aqueous solution of arsenic acid. The polyvinyl alcohol-based resin can be produced by saponification of a polyvinyl acetate-based resin. In addition to the polyvinyl acetate of the homopolymer of ethyl acetate, it may be a copolymer of vinyl acetate and another monomer copolymerizable therewith. For example, other monomers copolymerizable with vinyl acetate may, for example, be mentioned. : unsaturated carboxylic acids, olefins, vinyl ethers, unsaturated decanoic acids, acrylamides having ammonium groups, etc. The saponification degree of the polyvinyl alcohol-based resin is usually 85 to 1 〇〇 mol % The right side is preferably 98% or more. The polyvinyl alcohol-based resin may also be a modified one, for example, a polyvinyl acetal (P〇lyvinyl formal) or a polyethyl condensate Jun (p〇lyvinyl paper correction, etc.. The degree of polymerization of the polyethylene glycol resin is usually U〇〇 to about 1〇, 000 or so, preferably about 500 to 5,000, b〇() The film formed by the alcohol resin is the original film of the light film. The method of forming the film of the polyvinyl alcohol resin is not limited, and the film can be formed by a known method. The film thickness of the film is, for example, 1 Å to 15 Å..., and is preferably about m. υ·^100 322800 9 201137460 One-axis extension of the polyvinyl alcohol-based resin film before dyeing with a dichroic dye , at the same time as dyeing, or after dyeing. If one-axis extension is performed after dyeing, the one-axis extension can be carried out before the sizing treatment or in the boric acid treatment. Of course, one-axis extension can also be performed in the plural phase represented herein. The "one-axis extension" may be a method of extending to a shaft between rolls having different circumferential speeds or a method of extending to one axis by using a hot roller. Further, the one-axis extension can be carried out by dry stretching in which air is stretched, and can also be carried out by using a solvent such as water to carry out the wet stretching in which the polyethylene sulphate resin film is swollen. The extension ratio is usually about 3 to 8 times. The polyvinyl alcohol-based resin film is dyed with a dichroic dye, and can be carried out, for example, by dipping a polyethylene-based resin film into an aqueous solution containing a dichroic dye. Regarding the dichroic dye, specifically, iodine or a dichroic organic dye is used. The polyvinyl alcohol-based resin film is preferably a treatment in which the swelling is carried out by impregnating it in water before the dyeing treatment. When using a dichroic dye as a dichroic dye, it is usually used in a method of dyeing an aqueous solution of an aqueous solution containing a bi- or a bell. The content of hydrazine in the aqueous solution is usually from about 0.01 to about 1 part by weight, and the amount of potassium iodide is from about 0.5 to 20 parts by weight based on 1 part by weight of water. The temperature of the aqueous solution used for dyeing is usually about 20 to about a song. Further, the impregnation time (dyeing time) in the aqueous solution is usually about 20 to 2 (9) seconds. On the other hand, when a dichroic organic dye is used as the dichroic dye, it is usually used in an aqueous solution containing a water-soluble dichroic organic dye, 322800 10 201137460, and a polyethylene resin resin to be dyed. In the aqueous solution, the dye content is usually about 1 x 10 3 to 1 part by weight, based on 100 parts by weight of water. The dye is water-soluble, and an inorganic salt such as sodium sulfate is used as a dyeing assistant. The temperature of the aqueous solution of the dichroic organic dye used for dyeing is usually about 2G to 8G °C. In addition, the dipping time (dyeing time) in the aqueous liquid solution is usually about 1 to 1,800 seconds. The treatment of 1 f with boric acid dyed with a one-color pigment can be carried out by immersing the dyed ethyl alcohol resin film in an aqueous solution containing arsenic acid. 3 The boric acid content of the aqueous solution of the citric acid is usually from 2 to 15% relative to 100 parts by weight of water, and is preferably from 4 to 12 parts by weight, preferably from 5 to 12 parts by weight. When using as a dichroic dye, it is preferable to include an aqueous solution of the ship. The content of potassium iodide in the liquid containing boric acid and the liquid in the disaster is about 0.1 to 15 parts by weight with respect to the water, and 5 to 12 parts by weight == containing the water-slit towel.嶋嶋嶋嶋浸浸浸、 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 Preferably, the polyvinyl alcohol-based resin film treated with 60 to 8 (TC is more boric acid) is usually subjected to a water washing treatment. The water washing treatment may be impregnated with a polyethylene glycol-based resin film treated with, for example, (tetra) acid. The water temperature of the water washing treatment is usually 5 to 4 〇 ° C. In addition, the immersion time is usually about 1 to 120 seconds. After washing with water, drying treatment is performed to obtain a polarizing film. Drying machine or far-infrared heater. Dry processing, 322800 11 201137460 is about 30 to 100 °C, preferably 50 to 8 (TC is preferred. Drying time is usually about 6Q to _ seconds, to 120 to _ second is preferred. By drying treatment, the moisture content in the polarizing film is lowered to a practical level. The moisture content is usually about 5 to 2% by weight, preferably 8 to 15% by weight. When the moisture content is less than 5% by weight, the flexibility of the polarizing film is lost, and damage or breakage may occur after drying. When the rate is more than 2% by weight, the thermal stability tends to be insufficient. The polarizing film obtained by adsorbing a dichroic dye in a polyvinyl alcohol-based resin film can be produced as described above. The thickness thereof is, for example, about 5 to 4 〇em. [The transparent protective film located farther from the liquid crystal cell] The front side polarizing plate 2 〇 and the back side polarizing plate 3 〇 are respectively located at a distance from the liquid crystal cell 10 The transparent protective films 25 and 35 on the distal side are preferably made of a material excellent in transparency, mechanical strength, thermal stability, moisture shielding property, etc. Such materials may, for example, be methyl methacrylate. The resin is a representative example of an acrylic resin, a polypropylene-based resin is a representative of a chain-like polyolefin resin, a cyclic polyolefin resin, a cellulose resin, and a polyethylene terephthalate resin. Polybutylene terephthalate Resin, polyvinyl chloride resin, styrene resin, acrylonitrile/styrene copolymer resin, acrylonitrile/butadiene/styrene copolymer resin, polyvinyl acetate resin, polyvinylidene chloride (polyvinylidene chloride) resin, polyamido resin, polyacetal resin, polycarbonate resin, modified polyphenylene ether resin, polyglycol resin, polyether sulfone resin, polyarylate resin, Polyamide-based imide-based resin, poly-imine-based resin, etc. 12 322800 201137460 These resins may be used singly or in combination of two or more. In addition, any polymer may be used for these resins. The modified resin is used as a material for a transparent protective film. Examples of the polymer modification include, for example, copolymerization, crosslinking, molecular terminal modification, and stereoregularity control, and mixing with a reaction between the heterogeneous polymers. Among the above resins, a 'mercaptomethyl acrylate-based resin, a polypropylene-based resin, a cellulose-based resin, or a polyethylene terephthalate-based resin is suitable as a transparent protective film located farther from the liquid crystal cell 1 〇. 25, 35 materials. The mercapto methacrylate-based resin is a polymer containing 5% by weight or more of methyl methacrylate unit. The content of the methyl methacrylate unit is preferably 70% by weight or more, and may be 100% by weight. The oxime methacrylate unit is a 100% by weight polymer obtained by separately polymerizing methyl methacrylate. The methacrylate methacrylate resin is usually obtained by polymerizing a monofunctional monomer containing thioglycol ruthenium vinegar as a main component in the coexistence of a radical polymerization initiator and a chain transfer agent. There is also a case where a component copolymerizable with methyl methacrylate is blended and copolymerized in a monofunctional monomer, and a small amount of a polyfunctional monomer is copolymerized as needed. As the monofunctional monomer copolymerizable with decyl methacrylate, for example, ethyl methacrylate, butyl methacrylate, cyclohexyl acrylate, phenyl methacrylate, benzyl methacrylate Mercapto acrylates other than decyl acrylate, 2-ethylhexyl methacrylate, and 2-hydroxyethyl methacrylate; decyl acrylate, ethyl acrylate, C 13 322800 201137460 Acrylates such as butyl acrylate, cyclohexyl acrylate, phenyl acrylate, benzyl acrylate, and 2-ethylhexyl acrylate; hydroxymethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, Acrylic acid 3-hydroxypropyl S, and propionate 2- to butyl ketone, etc., acrylic acid carboxylic acid; methacrylic acid, and unsaturated acids such as acrylic acid; styrene, brominated styrene, etc. Toothed styrene; vinyl toluene, and α-methyl styrene substituted styrene; acrylonitrile, and unsaturated acrylonitrile such as acrylonitrile; cis-butyl dianhydride, and citraconic anhydride And other unsaturated anhydrides; phenyl To (PEI), and cyclohexylmaleimide (PEI) and unsaturated acyl alkylene amines. These monomers may be used singly or in combination of two or more kinds with respect to a polyfunctional monomer copolymerizable with methacrylic acid methacrylate, and, for example, bis-if-mono(indenyl)propionate Ethylene glycol or its oligomers, such as diethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, and tetraethylene glycol di(meth)acrylate The terminal hydroxyl groups on both sides are acetated with acrylic acid or mercaptoacrylic acid; the terminal hydroxyl groups on both sides of propylene glycol or its oligomer are esterified with acrylic acid or mercaptoacrylic acid; neopentyl glycol di(meth)acrylate, Hexanediol di(meth)acrylate, and butanediol di(meth)acrylic acid vinegar, etc., the base of the glycol is acetated with dicaptanic acid or methacrylic acid; double 19A, double cool An alkylene 〇xide adduct of A, or a acetylation of the terminal ends of the halogen substituents with a benzoic acid or a mercapto acrylate; Burning and pentaerythritol and other static statics with acrylic acid or ▼-based acrylic acid; with more than two The terminal of the compound of the group is added to the epoxy group of glycidyl acrylate (glycidyl (4)) or the epoxy group of thiol propyl acrylate by the ring of the base 1; 322800 14 201137460 on succinic acid, adipic acid a terephthalic acid such as terephthalic acid, o-p-dicarboxylic acid, and a functional substituent of the same, or an epoxy-fired adduct of the same, a ring-opening addition of an acrylic propylene acrylate or a methacrylic epoxy An epoxy group of propylene vinegar; (mercapto) acrylic acid (tetra); an ethylene divinyl compound such as a diphenyl group. When the polyfunctional monomer is copolymerized, ethylene glycol dimethyl acrylate, tetraethylene glycol dimethacrylate or neopentyl glycol dimethacrylate is preferably used in the oxime. Further, a resin which has been modified by a reaction between functional groups of an oxime methacrylate resin can also be used. The reaction between the functional groups may be, for example, a methyl ester group of methyl methacrylate and a hydroxyl group of a hydroxyl group of 2-(hydroxymethyl) acrylate in a polymer chain, and a carboxyl group of acrylic acid. The hydroxyl group of 2_(hydroxymethyl) decyl acrylate is subjected to a dehydration condensation reaction in a polymer chain. Regarding methyl methacrylate-based resin, a commercially available product can be easily obtained. To cite examples of commercial products, the product names are: "SUMIPEX" sold by Sumitomo Chemical Co., Ltd., "ACRYPET" sold by Mitsubishi Rayon Co., Ltd., and "Delpe1" sold by Asahi Kasei Co., Ltd.; "Parapet" sold by Kuraray Co., Ltd., "ACRYCURE" sold by Nippon Shokubai Co., Ltd., etc. Polypropylene resin is a polymer of a chain olefin monomer mainly composed of propylene, usually More than 8 % by weight of the repeating unit is a chain olefin-based resin composed of propylene. The polypropylene-based resin may be a homopolymer of propylene or a comonomer mainly composed of propylene and copolymerizable therewith ( C〇m〇n〇mer) is a copolymer of 15 322800 201137460 which is copolymerized at a ratio of 1 to 20% by weight, more preferably 3 to 1% by weight. In the case of the product, the co-polymerization system may be ethylene, 1-butene or 1-hexene. Among them, since the polypropylene resin having excellent transparency is obtained, the ethylene is 1 to 20 The weight is preferably from 3 to 10% by weight/◦ When the copolymerization ratio of ethylene is 1% by weight or more, the effect of improving transparency is exhibited. On the other hand, when the copolymerization ratio of ethylene exceeds 20% by weight, the melting point of the resin is lowered to impair transparency. The heat resistance required for the protective film. The content of the component soluble in diphenylbenzene at 20 ° C (CXS component: CXS is short for cold xylene soluble) is preferably 1% by weight or less. 0.5% by weight or less is more preferable. In the polypropylene resin, a homopolymer of polypropylene having a CXS component of 1% by weight or less and even 0.5% by weight or less is suitable as an example. The products can be easily obtained. For examples of commercial products, the product names are: “Primepolypro” sold by Pr i mepo 1 ymer AG, “N0VATEC” sold by Japan Polypro AG, and “ WINTEC", Sumitomo Chemical Co., Ltd. sells "Sumitomo Nobrene", "Sunal 1〇mer" sold by Sunal Lomer Co., Ltd., etc. Cellulose resin can be organic acid ester of cellulose or mixed organic acid vinegar A part or all of a hydrogen atom in a cellulose group is replaced by an ethyl acetate group, a propyl alcohol group, and/or a butyl alcohol group. It is especially suitable for the purpose of mixing, such as cellulose triacetate, cellulose diacetate, cellulose silicate 322800 16 201137460 acid ester, cellulose acetate butyrate, etc. ^ For the bismuth dicarboxylate Ethylene resin, the repeating single S is 80 mol. / The above is a resin composed of ethylene terephthalate, and may also contain other diterpenic acid components and / Or other glycol components. Other dibasic acid components include, for example, meta-dicarboxylic acid, 4,4,-dicarboxydiphenyl, 4,4,dicarboxydiphenyl ketone, bis(4-carboxyphenyl)ethane, and Diacid, azelaic acid, hydrazine, 4-didecylcyclohexene, and the like. Further, examples of the other glycol component include an ethylene oxide adduct of propylene glycol, butylene glycol, neopentyl glycol, diethylene glycol, cyclohexanediol, and bisphenolphthalein, Polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and the like. These other dibasic acid components or other diol components may be used in combination of two or more types as needed. A hydroxycarboxylic acid such as p-hydroxybenzoic acid or p-hydroxyethoxy benzoic acid may also be used in combination. Further, as the other copolymerization component, a dibasic acid component or a glycol component containing a small amount of a guanamine bond, an urethane bond, an ether bond, a carbonate bond or the like may be used. The method for producing a polyethylene terephthalate resin is to directly condense terephthalic acid and ethylene glycol (and other dibasic acids or other glycols as needed). a method for polycondensing a terephthalic acid ester of terephthalic acid with ethylene glycol (and a dialkyl group or other diol of another dibasic acid as needed) while performing a vinegar exchange reaction, A method in which terephthalic acid (and other dibasic acids as needed) and ethylene glycol (and other glycol esters as needed) are subjected to polycondensation in the presence of a catalyst. In addition, it is also possible to increase the molecular weight by adding solid phase polymerization as needed, or to reduce the low molecular weight component. 17 3228〇〇201137460 The above-mentioned resin is made into a transparent protective film for a polarizing plate. A suitable method for each resin can be used. For example, a solvent casting method in which a resin dissolved in a solvent is cast on a metal belt or a drum and the solvent is dried and removed to obtain a film; the resin is heated to a melting temperature. As described above, the mixture is kneaded, extruded from a die, and cooled to obtain a film by a melt extrusion method or the like. The melt extrusion method can extrude a single layer film, and can simultaneously extrude a multilayer film. These resin films can be easily obtained from commercially available products. For the commercially available film, 'if it is a decyl acrylate-based resin film, the trade names are as follows: "Techno 1 loy'' sold by Sumitomo Chemical Co., Ltd., sold by Mitsubishi Rayon AG "ACRYLITE" and "ACRYPLEN", "Delaglas" sold by Asahi Kasei Co., Ltd., "Paraglas" and "Comoglas" sold by Kuraray Co., Ltd., "ACRYCURE" sold by Nippon Shokubai Co., Ltd., etc. The polyethylene terephthalate resin film is sold under the trade name "N0VACLEAR" sold by Mitsubishi Chemical Corporation, "A-PET SHEET" sold by Teijin Chemicals Co., Ltd., etc. The polypropylene-based resin film is sold under the trade names "FILMAX CPP film" sold by FILMAX AG, "Suntox" sold by Sun. tox AG, and "Tohcello" sold by Tohcello AG. "Toyofang Pylen Film" sold by Toyobo Co., Ltd., "Torayfan" sold by Toray Advanced Film Co., Ltd., "Japan Polyace" sold by Japan P〇iyace Co., Ltd., FU "Taige FC" sold by TAMURA Chemical Co., Ltd., etc. In addition, when it is a cellulose-based resin film, its trade name is 18 322800 201137460, which is called Fujitac TD, which is sold by Fujifilm Co., Ltd. "K〇nica Μίη〇ι^ TAC film KC" sold by Konica MinoUa Opto Co., Ltd., etc. The transparent protective film 25 disposed on the side farther from the liquid crystal cell 1 is provided with a haze to exhibit an anti-glare property. The method of imparting haze is, for example, a method in which inorganic fine particles or organic fine particles are mixed and formed into a raw material resin constituting a transparent protective film, and a resin mixed with fine particles and unmixed fine particles are extruded by a plurality of layers. a method of forming a two-layer film by using a resin having a microparticle-containing resin as an outer layer; and coating a coating liquid in which inorganic fine particles or organic fine particles are mixed with a curable adhesive (bmder) resin. One side of the film, a method of curing the binder resin to provide an antiglare layer, and the like. Examples of the inorganic fine particles used for imparting haze include, for example, silica, colloidal cerium oxide, alumina, ... (10), aluminate sol), aluminosilicate, alumina-yttria composite oxide. , kaolin, talc, mica, calcium carbonate, calcium phosphate, etc. Further, examples of the organic fine particles include crosslinked polyacrylic acid particles, methyl methacrylate/styrene copolymer resin particles, crosslinked polystyrene particles, crosslinked polymethyl methacrylate particles, and polyfluorene oxide ( Silicone; ^^lipid particles, polyimine particles, etc. When the haze is imparted to the transparent protective film, the haze value is preferably in the range of 6 to 45%. The haze of the transparent protective film is less than 6%. On the other hand, if the haze of the transparent protective film is higher than 45%, the surface of the liquid crystal display device in which the transparent protective film is disposed may become whitened and the quality of the enamel may be poor. The haze is determined by the ratio of the ratio of the total light transmittance to the ratio of 19 322800 201137460, which can be determined according to JIS K7136 and using a commercially available haze meter. For example, Murakami can be used. "HM-150" sold by the Color Technology Research Institute, etc. When measuring the haze value, in order to prevent warpage of the film, it is preferable to use, for example, an optically transparent adhesive to prevent glare. The way the surface becomes the surface will A measurement sample in which a surface is bonded to a glass substrate. The transparent protective film 25 disposed on the side farther from the liquid crystal cell 10 and the transparent protective film 35 on the side of the backlight module may be on the outer side of each of them. A functional layer including a conductive layer, a hard coat layer, a low-reflection layer, etc. is provided. The coating liquid of the resin containing a binder which constitutes the anti-glare layer may also be selected from a resin composition capable of exhibiting such functions. The transparent protective film on the side] The front side polarizing plate 20 and the back side polarizing plate 30' shown in Fig. 1 constitute a resin material of the transparent protective films 26 and 36 located on the side of the liquid crystal cell 1 and can be used in the above. The same is true of the transparent protective films 25 and 35 on the far side of the liquid crystal cell 10. Among them, the cellulose resin or the chain polyolefin is used in terms of easy control of the retardation value and easy availability. A polyolefin-based resin of a resin or a cyclic polyolefin resin is preferred. The cyclic poly-smoke resin as used herein means a ring-shaped, for example, norbornene and other cyclopentadiene derivatives. Olefin mono The polymerization is carried out in the presence of a catalyst. When such a cyclic polyolefin-based resin is used, a transparent protective film having a predetermined retardation value to be described later can be easily obtained. : a decane or a diterpene obtained by diene-Alder reaction by using cyclopentadiene with a dilute hydrocarbon or with (mercapto)acrylic acid or an ester thereof (Diels-Alder reaction) A derivative obtained by ring-opening metathesis polymerization as a monomer, followed by hydrogenation; by using dicyclopentadiene with an olefin or with (meth)acrylic acid or an ester thereof a tetracycline or a derivative thereof obtained by a Diles Adel reaction as a monomer, subjected to ring-opening metathesis polymerization 'and then hydrogenated to obtain a resin; from deciduous, tetracyclic, and rare a derivative, and at least two monomers selected from the other cyclic olefin monomers are similarly subjected to ring-opening metathesis copolymerization, followed by hydrogenation to obtain a resin; in the reduction of a olefin, tetracyclododecene, or Such derivatives, etc. A resin obtained by adding a copolymer of an aromatic compound having a chain olefin and/or a vinyl group. Regarding the cyclic polyolefin-based resin, a commercially available product can be easily obtained. "T0PAS" produced by PTOPlypiastics Co., Ltd. and "ART0N" sold by JSR AG, which are produced by TOP AS ADVANCED POLYMERS GmbH and sold by P〇lypiastics Co., Ltd., are listed in the article. "ZE0N0R" and "ΖΕ0ΝΕΧ" sold by Sakamoto Zeon Co., Ltd., and "apel" sold by Mitsui Chemicals Co., Ltd., etc. A typical example of the chain polyolefin resin is a polyethylene resin and a polypropylene resin. Among them, a more suitable one is a homopolymer of propylene, or a comonomer mainly composed of propylene and copolymerizable with it (for example, ethylene) in a ratio of 1 to 20% by weight (preferably 3 to 10% by weight) A method of forming a film by a copolymerization of a cellulose resin or a polyolefin resin, etc., may be appropriately selected by a method corresponding to each resin. For example, 322800 21 201137460 A resin casting method in which a resin dissolved in a solvent is cast on a metal belt or a cylinder and the solvent is dried and removed to obtain a film; the resin is heated to a temperature higher than a melting temperature, and after being kneaded, it is extruded from a mold and cooled by a cooling drum. In the melt-extrusion method of the film, etc., the polyolefin-based resin is preferably a melt-squeezing method from the viewpoint of productivity. On the other hand, the cellulose-based resin is generally formed by a solvent casting method. When the liquid crystal cell is in the IPS (In-Plane Switching) mode, the IPS mode liquid crystal cell does not damage the wide viewing angle characteristic originally possessed by the transparent protective film 26, 36 located on the liquid crystal cell 10 side. The retardation Rth in the thickness direction is preferably in the range of -10 to 10 nm. The retardation Rth in the thickness direction is a value obtained by subtracting the average refractive index in the in-plane from the average refractive index in the thickness direction and multiplying the thickness of the film. Further, the in-plane retardation Re is a value obtained by multiplying the refractive index difference in the plane by the film thickness, as shown by the following formula (c).

Rth=[(nx+ny)/2-n2]xd (b)Rth=[(nx+ny)/2-n2]xd (b)

Re=(nx —ny)xd (c) 式中，nx係膜面内的x軸方向（面内慢軸方向）的折射率，ny係膜面内的y軸方向（面内快軸方向，亦即在面内與 X轴垂直的方向）的折射率，nz係與膜面垂直之2軸方向（厚度方向）的折射率，並且d為膜之厚度。在此，延遲值可為可見光的中心附近之5〇〇至左右之範圍的任意波長下之值，而本說明書係以波長 590nm之延遲值為標準。厚度方向的延遲Rth及面内的延遲Re可用市售之各種相位差計作測定。 322800 22 201137460 關於將樹脂膜之厚度方向之延遲Rth控制於_1()至 10nm的範圍内之方法，可舉例如：於製作膜時，盡量縮小在厚度方向所殘留的應變之方法。例如，在上述之溶劑澆鑄法中，可採用對於在該流延樹脂溶液乾燥時所產生的厚度方向之殘留收縮應變，藉由熱處理而使其緩和之方法等。另一方面，在上述之熔融擠壓法中，為了防止在將樹脂膜從模具擠壓出直到冷卻為止之期間時會延伸，可採用盡量縮短模具至冷卻鼓的距離，同時控制壓出量與冷卻鼓的回轉速度而使膜不會延伸之方法等。此外，與溶劑澆鑄法相同地’亦可採用將所得到的膜所殘留之應變藉由熱處理而緩和的方法。 [偏光膜與保護膜的接著] 關於前面側偏光板20之偏光膜21與透明保護膜 25, 26的接合、以及前面侧偏光板3〇之偏光膜與透明保瘦膜35, 36的接合’通常係使用接著劑。將偏光膜與透明保護膜予以接合的接著劑層，其厚度可為〇〇1 至 30/zm 左右’以0. 01至l〇"m為佳，以〇〇5至為更佳。接著劑層的厚度若在範_，則積層之透明保護膜與偏光膜之間將不會產生#起或剝離，而得到實用上無問題的接著力。關於接著劑層的形成，可因應所接著體的種類或目的而使用適合恰當之接著劑，此外，尚可因應所需而使用錫塗劑（anchor c〇ating-agent)。接著劑則可舉例如：溶劑型接著劑、乳劑型接著劑、感壓型接著劑、再濕型接著劑、 23 322800 201137460 聚縮合型接著劑、無溶劑型接著劑、膜狀接著劑、熱溶型接著劑等。 —較佳的接著劑之—為水系接著劑，換言之，可列舉如接著劑成分溶解或分散於水者。可溶於水的接著劑成分之例：舉例如聚乙烯醇系樹脂。此外，可分散於水之接著劑，分則可舉例如：具有親水基的細旨系劃旨。水系接著劑可藉由將此等接著劑成分與因應所需而調配追力口之添加劑 1水中混合而調製。若欲列舉可作為水系接著劑之市售之聚乙稀醇系樹脂之例，則有例如：版㈣y股份公司所販售之屬於羧基改質聚乙烯醇的“KL-318”。水系接著劑可因應所需而含有交聯劑。若要列舉交聯劑之例’則有：胺化合物、酸化合物、經曱基化合物、水 /容性ί哀氧樹脂、異氰酸酯化合物、多價金屬鹽等。當聚乙烯醇系樹脂為接著劑成分時，以乙二醛為首之醛化合物、以羥甲基二聚氰胺為首之羥甲基化合物、水溶性環氧樹脂等係適合作為交聯劑使用。在此，水溶性環氧樹脂可為例如：對於二伸乙三胺戈三伸乙四胺等多伸烷基多胺與己二酸等二元酸之反應物的聚醯胺聚胺，使其與表氣醇進行反應，而得到之聚醯胺環氧樹脂。水溶性環氧樹脂的市售品則可舉例如：住化 Chemtex 股份公司所販售之“Sumirez Resin 65〇(3〇)，，（商品名稱）等。於偏光膜及/或透明保護膜的接著面塗佈水系接著劑，將兩者貼合後，藉由施以乾燥處理可得到偏光板。在接著 322800 24 201137460 前，先對透明保護膜施以專化處理、電電漿處理等易接著處理，而預先提升濕_電是乾燥溫度則例如可為6〇至乂。 / 0左右乾無處理後，在較至4的溫度，例如在卯现左在知 10曰左右，會使黏著力進-步提升，故為較佳至另一較佳的接著劑，則可舉例如：含有因活照射或加熱而硬化之環·合物的硬錄 :量線在此’硬化性環氧化合物係指其分子内至少具有=: 基者。此時’偏光難透縣護膜之接著，可經由對= 成物之塗佈層照射活性能量線或加熱而^ ^斤含之硬錄環氧化合物硬化的方法進彳卜環氧化^ 的硬化-般係藉由環氧化合物的陽離子聚合而進行。; =由生產性的觀點來看，此硬化係以藉由照射活線進行者為佳。此重由耐候性、折射率、陽離子聚合性等觀點來看，硬化 =接著劑組成物所含有的環氧化合物，尤以分子内不含有芳香環者為佳。分子内不含有芳香環之環氧化合物則:列舉如··氫化環氧化合物、脂環式環氧化合物、脂肪族環氧化合物等。關於此種適用於硬化性接著劑組成物之環氧化 δ物，例如在JP2004-245925-A公報中有詳細說明，在此亦概略說明之。氫化環氧化合物可為：使屬於芳香族環氧化合物的原料之芳香族聚羥基化合物於觸媒存在下及加壓下選擇性地進行核氫化反應，並將所得到的核氫化聚羥基化合物進行 322800 25 201137460 環氧丙基醚化而成者。屬於芳香族環氧化合物的原料之芳香族聚羥基化合物則可舉例如：雙酚A、雙盼F、及雙紛s 等雙紛類；驗盼酸清漆（phenol novolac)樹脂、曱紛紛駿清漆（cresol novolac)樹脂、及羥基苯曱醛酚酚醛清漆樹脂等酚醛清漆（novolac)型的樹脂；四羥基二苯基甲烷、四羥基二苯基酮、及聚乙烯基酚等多官能型的化合物等。對於此等芳香族聚羥基化合物進行核氫化反應’並將所得到的核氫化聚羥基化合物與表氣醇反應，即可進行環氧丙基醚化。適宜之氫化環氧化合物則可舉例如：經氫化之雙酚 A的環氧丙基鍵。脂環式環氧化合物係指分子内至少具有i個與脂環式環結合之環氧基的化合物。「與脂環式環結合之環氧基」意指下式所示構造中之橋接的氧原子_〇_，此式中，以2至 5之整數。 (CHa 將此式之（CH2)m中去掉i個或複數個氫原子之形態的土與其他化學構造結合之化合物，可成為脂環式環氧化合勿此外’形成脂ί哀式環的（CHA中的1個或複數個氮原可、如甲基或乙基等直鏈錄基所適當取代。脂環式 :氧化合物中，尤以具有氧雜雙環己貌（上式之^者）或白雜雙環庚院（上式之m=4者）之環氧化合物係因表示出優〈之接著性而為適用。以下揭示脂環式環氧化合物之具體 322800 26 201137460 範例。在此，首先列舉化合物名稱，其後分別列出對應之化學式，並且化合物名稱與對應該名稱之化學式係標以相同符號。 A : 3, 4-環氧基環己烷羧酸3, 4-環氧基環己基曱酯、 B : 3, 4-環氧基-6-曱基環己烷羧酸3, 4-環氧基-6-曱基環己基曱酯、 C :伸乙基雙（3, 4-環氧基環己烷羧酸酯）、 D :己二酸雙（3, 4-環氧基環己基甲基）酯、 E:己二酸雙（3, 4-環氧基-6-曱基環己基曱基）酯、 F :二乙二醇雙（3, 4-環氧基環己基曱基醚）、 G:乙二醇雙（3, 4-環氧基環己基甲基醚）、 Η : 2, 3, 14, 15-二環氧基-7, 11，18, 21-四氧雜三螺 [5. 2. 2. 5. 2. 2]二Η —烧、 I: 3-(3,4-環氧基環己基）-8, 9-環氧基-1，5-二氧雜螺[5. 5] Η—碳烧、 J : 4-乙烯基二氧化環己烯、 Κ :二氧化葶（limonene dioxide)、 L :雙（2, 3-環氧基環戊基）醚、 Μ:二氧化二環戊二烯等。Re=(nx — ny)xd (c) In the formula, the refractive index in the x-axis direction (in-plane slow axis direction) in the nx-based film plane, and the y-axis direction in the in-plane plane (in-plane fast axis direction, That is, the refractive index in the direction perpendicular to the X-axis in the plane, nz is the refractive index in the two-axis direction (thickness direction) perpendicular to the film surface, and d is the thickness of the film. Here, the retardation value may be a value at any wavelength in the range of 5 〇〇 to the left and right of the vicinity of the center of visible light, and the present specification is based on a retardation value of a wavelength of 590 nm. The retardation Rth in the thickness direction and the retardation Re in the plane can be measured by various commercially available phase difference meters. 322800 22 201137460 The method of controlling the retardation Rth in the thickness direction of the resin film in the range of _1 () to 10 nm is, for example, a method of reducing the strain remaining in the thickness direction when the film is formed. For example, in the above solvent casting method, a method of relaxing the residual shrinkage strain in the thickness direction generated when the casting resin solution is dried, and relaxing it by heat treatment may be employed. On the other hand, in the above-described melt extrusion method, in order to prevent elongation during the period from the extrusion of the resin film to the cooling until cooling, it is possible to minimize the distance from the mold to the cooling drum while controlling the amount of extrusion and A method of cooling the rotation speed of the drum so that the film does not extend. Further, in the same manner as the solvent casting method, a method of alleviating the strain remaining in the obtained film by heat treatment may be employed. [Continuation of polarizing film and protective film] The bonding of the polarizing film 21 of the front side polarizing plate 20 and the transparent protective films 25, 26, and the bonding of the polarizing film of the front side polarizing plate 3 and the transparent thin film 35, 36' An adhesive is usually used. The adhesive layer to which the polarizing film and the transparent protective film are bonded may have a thickness of from about 〇1 to about 30/zm, preferably from 0.01 to 1 〇"m, and more preferably from 〇5 to 5. If the thickness of the adhesive layer is in the range of 范, no adhesion or peeling will occur between the laminated transparent protective film and the polarizing film, and a practical problem-free adhesive force can be obtained. Regarding the formation of the adhesive layer, an appropriate adhesive can be used depending on the type or purpose of the adherend, and an anchor c-ating-agent can be used as needed. Examples of the subsequent agent include a solvent-based adhesive, an emulsion-type adhesive, a pressure-sensitive adhesive, and a rewet-type adhesive, 23 322,800, 2011, 374,600, polycondensation type adhesive, solvent-free adhesive, film adhesive, and heat. Soluble adhesive and the like. The preferred adhesive is a water-based adhesive, in other words, those in which the subsequent component is dissolved or dispersed in water. An example of the water-soluble adhesive component is, for example, a polyvinyl alcohol-based resin. Further, it may be dispersed in an aqueous binder, and the fraction may be, for example, a structure having a hydrophilic group. The water-based adhesive can be prepared by mixing the above-mentioned adhesive components with the additive 1 in the water to be prepared as needed. For example, a commercially available polyvinyl alcohol-based resin which can be used as a water-based adhesive is, for example, "KL-318" which is a carboxyl-modified polyvinyl alcohol sold by the company (4). The aqueous binder may contain a crosslinking agent as needed. Examples of the cross-linking agent include an amine compound, an acid compound, a mercapto compound, a water/capacity oxidizing resin, an isocyanate compound, a polyvalent metal salt, and the like. When the polyvinyl alcohol-based resin is an adhesive component, an aldehyde compound such as glyoxal, a methylol compound such as methylol melamine, or a water-soluble epoxy resin is suitably used as the crosslinking agent. Here, the water-soluble epoxy resin may be, for example, a polyamidamine polyamine which is a reaction product of a polyalkylene polyamine such as diethylenetriamine and triethylenetetramine, and a dibasic acid such as adipic acid. It is reacted with epigas alcohol to obtain a polyamine epoxy resin. The commercially available product of the water-soluble epoxy resin may, for example, be "Sumirez Resin 65" (3〇), (trade name) sold by Chemtech Co., Ltd., etc. on a polarizing film and/or a transparent protective film. Next, a water-based adhesive is applied, and after the two are bonded together, a polarizing plate can be obtained by applying a drying treatment. Before the 322800 24 201137460, the transparent protective film is subjected to special treatment, electro-plasma treatment, etc. The treatment, while the pre-elevation wet_electricity is the drying temperature, for example, can be 6 〇 to 乂. / 0 or so after the dry treatment, at a temperature of 4, for example, the left side is about 10 知, the adhesion will be It is preferred to another preferred adhesive, for example, a hard recording containing a ring compound which is hardened by living irradiation or heating: a wire is here a 'hardening epoxy compound It means that there is at least a =: base in the molecule. At this time, the polarizing film of the county can be irradiated with an active energy ray or by heating the coating layer of the product. The hardening method of the compound is carried out by the epoxidation of the compound. The cationic polymerization of the compound is carried out.; = From the viewpoint of productivity, the curing is preferably carried out by irradiation with a living line. The weight is hardened by the viewpoints of weather resistance, refractive index, cationic polymerization property, and the like. = The epoxy compound contained in the composition of the adhesive is preferably one which does not contain an aromatic ring in the molecule. The epoxy compound which does not contain an aromatic ring in the molecule is as follows: hydrogenated epoxy compound, alicyclic epoxy A compound, an aliphatic epoxy compound, etc. The epoxidized δ substance which is suitable for the composition of the sclerosing adhesive is described in detail in JP2004-245925-A, and is also described in detail herein. The aromatic polyhydroxy compound which is a raw material of the aromatic epoxy compound may be selectively subjected to nuclear hydrogenation reaction in the presence of a catalyst and under pressure, and the obtained nuclear hydrogenated polyhydroxy compound may be subjected to a ring of 322800 25 201137460 The oxypropyl ether is obtained. The aromatic polyhydroxy compound which is a raw material of the aromatic epoxy compound may, for example, be a bisphenol A, a double-preferred F, or a double s. A phenol novolac resin, a cresol novolac resin, and a novolac type resin such as a hydroxybenzene quinone phenol novolac resin; tetrahydroxydiphenylmethane and tetrahydroxydiphenyl ketone; And a polyfunctional compound such as polyvinyl phenol, etc. The nuclear hydrogenation reaction of these aromatic polyhydroxy compounds is carried out, and the obtained nuclear hydrogenated polyhydroxy compound is reacted with a surface gas alcohol to carry out a glycidyl group. Etherification. Suitable hydrogenated epoxy compounds include, for example, a hydrogenated propylene bond of hydrogenated bisphenol A. An alicyclic epoxy compound means at least one epoxy bonded to an alicyclic ring in the molecule. Base compound. The "epoxy group bonded to the alicyclic ring" means a bridged oxygen atom _ 〇 _ in the configuration shown by the following formula, and is an integer of 2 to 5 in the formula. (CHa, a compound of the formula (CH2)m in which the form or combination of one or more hydrogen atoms is removed from other chemical structures can be alicyclic epoxidized. One or a plurality of nitrogen atoms in the CHA may be appropriately substituted with a linear group such as a methyl group or an ethyl group. The alicyclic formula: in the oxygen compound, particularly has an oxobicyclophene appearance (the above formula) The epoxy compound of the white heterobicyclo Gentamine (m=4 of the above formula) is suitable for exhibiting excellent adhesion. The specific example of the alicyclic epoxy compound is 322800 26 201137460. Here, The compound names are listed first, followed by the corresponding chemical formulas, and the compound names are given the same symbols as the chemical formulas corresponding to the names. A : 3, 4-epoxycyclohexanecarboxylic acid 3, 4-epoxy Cyclohexyl decyl ester, B: 3, 4-epoxy-6-fluorenylcyclohexanecarboxylic acid 3,4-epoxy-6-fluorenylcyclohexyl decyl ester, C: exoethyl bis (3, 4-epoxycyclohexanecarboxylate), D: bis(3,4-epoxycyclohexylmethyl) adipate, E: adipic acid bis(3,4-epoxy-6 -曱基Hexyl decyl) ester, F: diethylene glycol bis(3,4-epoxycyclohexyl decyl ether), G: ethylene glycol bis(3,4-epoxycyclohexylmethyl ether), hydrazine : 2, 3, 14, 15-diepoxy-7, 11,18, 21-tetraoxaspiro[5. 2. 2. 5. 2. 2] Diterpene — Ignition, I: 3-( 3,4-Epoxycyclohexyl)-8,9-epoxy-1,5-dioxaspiro[5. 5] fluorene-carbon, J: 4-vinyldioxane, hydrazine : limonene dioxide, L: bis(2,3-epoxycyclopentyl)ether, hydrazine: dicyclopentadiene dioxide, and the like.

27 322800 20113746027 322800 201137460

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脂肪族環氧化合物可為脂肪族多元醇或其環氧烷加 28 322800 201137460 成物的聚環“_(pQlyglyGidylet 可舉例如：丙二醇的二環氧丙基醚更:體而: 丙基醚；1,6-己-酵的-产，丁一醇的一娘氧酿…… 衣氧丙基峻；甘油的三環氧丙基 ’一 f丙烷的三環氧丙基醚；藉由對於族多元醇加成環纽（環氧乙院或環氧—丙環氧:基：多元醇的聚環—例如聚乙二醇的二在硬化性接著劑組成物中，環氧化合物係亦可將2種以上併用。其中，此環氧化合物係以包 1分子内至少具有1個與脂環式環結合之環氧基的脂環式 %氧化合物為佳。用於硬化性接著劑組成物的環氧化合物，通常具有30 至3, OOOg/當量之範圍内的環氧當量，此環氧當量以5〇至 i’soog/虽里的範圍為佳。若使用環氧當量低於汕y當量 =¾氧化合物時，有硬化後的偏光板之可撓性降低、或接著強度降低的可能性。另一方面，具有超過3 〇〇〇g/當量的被氧當量之化合物，有其與接著劑組成物中所含的其他成分的相溶性降低的可能性。以反應性的觀點來看，環氧化合物的硬化反應係以使陽離子聚合為佳。因此，在含有環氧化合物之硬化性接著劑組成物中，以調配陽離子聚合起始劑為佳。陽離子聚 5起始劑係因可見光線、紫外線、X射線、以及電子束等居性能量線的照射或加熱，而產生陽離子種或路易斯酸，並使環氧基之聚合反應開始0由作業性的觀點來看，陽離 29 322800 201137460 子聚合起始_以_予潛在性者純。以下，因活性能量線的照射而產生陽離子種或路易斯酸並使環氧基的聚合反應開始之聚合起始劑係稱為「光陽離子聚合起始劑」，因熱而產生陽離子種或路易斯酸並使環氧基的聚合反應開始之聚合起始劑係稱為「熱陽離子聚合起始劑」。使用光陽離子聚合起始劑並藉由活性能量線的照射而進行接著劑組成物之硬化的方法，其可於常溫下硬化，而使考慮偏光膜的耐熱性或膨脹所致之錢的必要減少，且可使透鴨護膜與偏光職好地接著，在此特點上為有利。另外’光陽離子聚合起始劑係料進行催化作用，故即使混合環氧化合物，其保存安定性及作業性亦良好。關於光陽離子聚合起始劑，可舉例如：芳香族重氮趟 (diaz〇niumsalt);料族鏘鹽或芳香族疏鹽等錯鹽，鐵: 丙二稀錯合物I光陽離子聚合起始_調配量，相對於環氧化合物1GG重量份’通f為〇 5至2()重量份，以1 重量份以上為佳，且以丨5重量份以下為佳。光陽離子聚合起始劑的雜量若相對於環氧化合物咖重量份而低於0.5重量份，則硬化不充分，且硬化杂之機械強度和接著強度有降低之傾向。另一方面，光陽離子聚合起始劑的調配量若相對於 =化合物100重量份而超過20重量份，則因硬化物中的性物質增加而使硬化物的吸濕性提高，有耐久性能降1 之可能性。使用光陽離子聚合起始劑時，硬化性接著劑組成物. 322800 30 201137460 因應所需而復含有光增感劑。藉由使用光增感劑，可提升陽離子聚合的反應性，使硬化物的機械強度與接著強产提升。關於光增感劑，則可舉例如··幾基化合物、有機^化合物、過硫化物、氧化還衫化合物、偶氮化合物、重氮化合物、齒化合物、光還原性色素等。調配光增感劑時，其量係以相對於硬化性接著劑物100重量份而為〇. 1至20重量份範圍内者為佳。另-方面’熱陽離子聚合起始劑則可舉例如銃鹽、嗔吩鑌鹽咖ophenium salt)、四氫麵鏽踏土 sa⑴、笨甲基銨鹽、料職、拼^鹽 (hyd顯nuim salt)、幾酸醋、磺酸酯、胺酿亞胺等。含有環氧化合物之硬化性接著劑組成物，雖如述是以光陽離子聚合而使其硬化者為佳，但亦可使上述孰陽離子聚合起始劑存在且藉由熱陽離子聚合而使其硬化，，，、亦可將光陽離子聚合與熱陽料聚合併^ 子聚合與熱陽離子聚合時，硬化性接著劑組成物係以= 光陽離子聚合起始劑與熱陽離子聚合起㈣兩者為佳。此外’硬化性接著劑組成物亦可復含有氧雜環丁烷 (Μ1")化合物❹树化合料促進陽離子聚合之化合物。氧雜環丁燒化合物係分子内具有4員環醇之化人物。調2雜環頂化合物時，其量在硬化性接著劑喊物中通吊為5至95重量％，以5至5〇重量％為佳。另外，多元醇化合物則可為包含乙二醇、六亞二醇等之聚炫一酵或其低聚物、聚醋多元醇、聚己内酿多元醇、 322800 31 201137460 聚碳酸δ旨多元料。調配多元醇化合物時，其量在硬化接著劑組成物中通常為50重量％以下，以3〇重量％以下為此外，關於硬化性接著成物，在不損及其接著性之前提下可含有其他添加劑，例如可含有：離子捕集劑、抗氧化劑、鏈轉移劑、增感劑、黏著賦予劑、熱可塑脂、填充劑、流動調整劑、可塑劑、消泡劑等。離子劑則可舉例如：包含粉末狀的料、料、㈣、叙系” 舞系、鈦系、此等之混合系等之無機化合物。抗氧化劑則可舉例如受阻酚系抗氧化劑等。將含有環氧化合物之硬化性接著劑組絲塗佈光膜或透明保護膜之接著面或是該等雙方之接著面後，以塗佈有接著劑之面貼合’並藉由活性能量線照射或加熱而使未硬化之接著劑層硬化，即可將偏錢與咖保護^ 以接著。關於接著㈣塗佈方法，料採關如：刮刀 (doctor blade)、線棒（wire bar)、模具塗佈機 coater)、逗點式塗佈機（c〇mma咖如）、凹版式 (gravure coater)等各種塗佈方式。丨附％丨u杜较考劑組成物，基本上雖可作為不含溶劑之無溶劑型接著劑使用，但因各塗佈方式ό 最適當之黏度範圍，因此，亦可為了調整黏度而含有溶劑則以不會使偏光膜的光學性能低弱，且可良環氧化合物為首之各成分的有機溶料佳，可以f苯作為代表之烴類的、以醋酸乙g旨作為代表之觸類等< 322800 32 201137460 藉由照射活性能量線進行接著劑組成物之硬化時，活性能量線雖可使用前述各種物質，但以容易取得且容易控制照射光量等之方面來看，以使用紫外線為佳。關於活性旎篁線，例如紫外線的照射強度或照射量，係在不會影響偏光膜之以偏光度為首的各種光學性能、以及透明保護膜的以透明性或相位差特性為首之各種光學性能的範圍内，以保持適度生產性之方式而適當決定。藉由熱進行接著劑組成物之硬化時，可以一般所知之方法加熱。通常係在使調配於硬化性Μ著劑組成物中之熱陽離子聚合料#1會產生祕子種或路㈣酸的溫度以上進订加熱’具體之加熱溫度係例如50至200°C左右。 [黏著劑層] 在以上所說明之成為前面侧偏光板20之液晶單元側，透明保護膜26上，積層有第一黏著劑層4〇，且在成為背面側偏光板30之液晶單元側的透明保護膜36上，積層有第二黏著劑層50。此等黏著劑層40, 50係為了將前面側偏光板20及背面侧偏光板30分別貼合於液晶單元10的兩，形成各黏著劑層的黏著劑，係亦被稱作感壓性接著劑光:上的透a月性優良且包含適度的濕潤性、凝集性 ^等:黏著特性優良者為佳，尤以敎性等優良者為適。«而f ’形成㈣劑層之黏著劑係以使酸系樹脂之黏荖鈿内辦 f者齊丙烯酸系黏著劑）為佳。丙烯酸系黏著劑所含有之丙稀酸系樹脂係以兩稀酸 33 322800 201137460 丁酉旨、丙稀酸乙醋、丙烯酸異辛S旨、以及丙烯酸2-乙基己酯等丙烯酸烷基酯作為主要單體的樹脂。於此丙烯酸系樹脂，通常共聚合有極性單體。極性單體係指具有聚合性不飽和鍵及極性官能基之化合物，此處，聚合性不飽和鍵一般為來自（曱基）丙烯醯基者，此外，極性官能基可為羧基、羥基、醯胺基、胺基、環氧基等。極性單體之具體例則可列舉如：（曱基）丙烯酸、（曱基）丙烯酸2-羥基丙酯、（曱基）丙烯酸2-羥基乙酯、（曱基）丙烯醯胺、（曱基）丙烯酸 2-N，N-二甲基胺基乙酯、（曱基）丙烯酸環氧丙酯等。此外，丙烯酸系黏著劑中，通常會同時調配丙烯酸系樹脂與交聯劑。交聯劑的表示例則可舉例如：分子内至少具有兩個異氰酸基（-NC0)之異氰酸酯化合物。黏著劑中亦可再調配各種添加劑。適宜之添加劑則可舉例如矽烷偶合劑或抗靜電劑等。矽烷偶合劑可有效提高與玻璃之接著力。抗靜電劑則可有效降低或防止靜電的發生。一般而言，在經由黏著劑層而將偏光板貼合於液晶單元時，要先將先前覆蓋於黏著劑層作暫時保護之表面保護膜（隔層（separator))剝除後再貼合至液晶單元，但因剝除該表面保護膜時所產生之靜電，而造成液晶單元内的液晶之定向不良，此現象會導致液晶顯示裝置顯示不良。而為了降低或防止此種靜電的發生，於黏著劑中調配抗靜電劑之手段係屬有效。黏著劑層40, 50係藉由下述製程而形成：將上述黏著劑成分溶於有機溶劑而調製黏著劑組成物後，將其直接塗 34 322800 201137460 佈於偏光板的透明保護膜26, 36上’藉由將溶劑乾燥去除之直接塗佈法’或錢由在由經脫模處理過的樹脂膜所構成的基材膜之脫模處理面上塗佈上述黏著劑組成物，、將溶劑乾燥去除後作成黏著劑層’並將此黏貼於偏光板明保護臈26,36上之轉印法而形成。藉由前者之直接塗佈法而在透明保護膜26祁上形成點著劑層40,50時，於其表面貼合經脫模處理的樹脂/(亦，為隔層）’暫時保護黏著劑層表面直到使用前係為慣例。從屬於有機溶劑溶液之黏著劑組成物的處理性等觀點來多採祕者之轉印法，此時，從在最初形成黏著劑層接之經脫模處理的基㈣，可在黏貼於偏光板後直雖作為隔層之觀點來看，亦屬方便。 [偏光板的水分率] 本發明中’參照第i圖，前面側偏光板20的水分率 1與背面侧偏光板30的水分率^之比Wi/W2 =之範圍。若使前面側偏光板20的水分率_背面侧 ^板30的水分“之關係在此範圍内，則點燈時由背 t 70所供給之光會使液晶面㈣0的溫度夸劇偏光板2〇,3〇蒸發，而使收縮時的平魏好，抑制了液晶面板6〇的勉曲。調整偏紐水㈣㈣法並無特殊_，々去。例如當水分率下降時，採用以乾燥爐 :對偏光板作峨理之方法為佳。此外，當水:率:; 如用以渔熱爐等對偏光板作加濕處理之方法為佳。此 322800 35 201137460 等，理可用滚輪狀的偏光板進行，亦可用葉片狀的偏光板進行另外φ可將滾輪狀的偏光板所進行之處理與狀的偏光板料行之處理予軌合。 … [構成偏光板之各構材的厚度] 關於則面側偏光板2〇 ’較佳係使其位於距液晶單元 10較遠側的透明保護膜25之厚度比位於液晶單元1〇側的透明保護膜26與貼附於該透明保護膜26之第-黏著劑層 40的合計厚度還厚，且關於背面側偏光板3〇,較佳亦係使其位於距液晶單元10較遠側的透明保護膜35之厚度比位於液晶單it ίο側的透明保護膜36與貼附於該透明保護膜 36之第二黏著劑層5G的合計厚度還厚。如此，關於前面侧偏光板20及背面側偏光板3〇 ,藉由增加各自位於距液晶單元10較遠側的透明保護膜25,35的厚度，即使將位於液晶單元10側的透明保護膜26, 36變薄，亦可提升特別是使用對角32吋（約81cm)以上的大型尺寸的偏光板時的處理性’同時亦更有效地抑制液晶面板60的翹曲。偏光板20，30之位於液晶單元1 〇侧的透明保護膜 26, 36，其各自之厚度以設定於2〇至50//m左右的範圍為佳。貼著於此處之黏著劑層40, 50可設定各自之厚度於1〇至30/ζιη左右的範圍。在此，偏光板2〇, 30之位於距液晶單元10較遠侧的透明保護膜25,35,其各自之厚度相較於位於液晶單元10侧的透明保護膜26, 36之厚度，以增大到至少超過l〇em即可，而以增大到至少大於30/zm以上為佳。並且’如上所述，只要設定為使前面側偏光板2〇之位 36 322800 201137460 二距液θ3早元較遠侧的透明賴膜25的厚纽位於透明保軸26與貼附於其之第—黏著劑層仙的 Γ十厚度•且㈣面側偏光板30之位於贿晶單元較 2的透明保護膜35的厚度比位於液晶單元側的透明保遵膜36與貼附於其之第二黏著劑層50的合計厚度還厚即二。使位於液^單元側的透㈣護膜26 36之厚度各約為 40/^m’第一黏者劑展场〇及第二黏著劑層50之厚度各約為 25//m’位於距液晶單开鉍、告。早疋較遠侧的透明保護膜25, 35之厚度各約為80以m，係為一較佳之形態。 [背光模組] 背光模組7 0係由至少包含對液晶單元1 〇供給顯示所用的光之光源構件而構成。此光源構件可為下述形式：由導光板與配置於其-侧面或相對向之兩側面的光源所構成之所謂的㈣（side light)型之形式，或是由複數的光源與配置於其上（朝向液晶單兀10之側）之光擴散板所構成之所明的直下式之形式。無論係何種形式，通常於光源構件的背面（距液晶單元10較遠側）以薄片或塗佈層的形態設置有光反射層。另外，於光源構件的光射出侧（朝向液晶單元10之側），有時亦另外配置1層至複數層之集光薄片或擴散膜等光學構件。背光模組70本身具有於此所說明之各構件，可採取此領域所採用之任意構成。 (實施例）以下，以實施例所示對本發明作進一步之具體說明，然本發明不侷限於此等實施例。例中，表示含量及使用量 322800 37 201137460 的份及％ ’若無特殊註記，即為重量基準。而且，以下之例中的各物性之測定係以下述方法進行。 (1) 厚度之測定：使用Nikon股份公司製造之數位測微器（digital micrometer)“MH-15M”作測定。 (2) 面内延遲及厚度方向延遲之測定：使用王子計測機器股份公司製造之以平行偏光鏡 (paral lei nicols)旋轉法為原理之相位差計 “K0BRA-21ADH”，於23t之溫度中，測定波長590nm之面内延遲及厚度方向延遲。 (3) 偏光板的水分率之測定將裁為150_xl50mm之尺寸的偏光板（黏著劑層形成前），放置於保持為l〇5±l°c的乾燥爐中60分鐘，將由放入乾燥爐前的重量（乾燥前重量）與放入乾燥爐後的重量 (乾燥後重量）並依下式所算出之值作為偏光板的水分率。The aliphatic epoxy compound may be a polycyclic ring of an aliphatic polyol or an alkylene oxide thereof and 28 322800 201137460. (pQlyglyGidylet may, for example, be a diglycidyl ether of propylene glycol: a body: a propyl ether; 1,6-hex-fermented-produced, butanol-oxidized alkaloids; oxypropylene; glycerol triepoxypropyl-p-propane triepoxypropyl ether; Polyol addition ring (epoxy epoxide or epoxy-propylene epoxy: base: polycyclic ring of polyol - such as polyethylene glycol two in the hardenable adhesive composition, epoxy compound system can also Two or more types are used in combination, and the epoxy compound is preferably an alicyclic % oxygen compound having at least one epoxy group bonded to an alicyclic ring in one molecule. The epoxy compound usually has an epoxy equivalent in the range of 30 to 3, OOOg/equivalent, and the epoxy equivalent is preferably in the range of 5 Å to i'soog/. If the epoxy equivalent is less than 汕y equivalent. When the oxygen compound is used, the flexibility of the polarized plate after hardening is lowered, or the strength of the subsequent strength is lowered. On the other hand, There are more than 3 〇〇〇g/equivalent of an oxygen equivalent compound, and there is a possibility that the compatibility with other components contained in the adhesive composition is lowered. From the viewpoint of reactivity, the epoxy compound is hardened. The reaction is preferably a cationic polymerization. Therefore, in the curable adhesive composition containing an epoxy compound, a cationic polymerization initiator is preferably formulated. The cationic poly 5 initiator is visible light, ultraviolet light, and X-ray. And irradiation or heating of an energy beam such as an electron beam to generate a cationic species or a Lewis acid, and to start the polymerization of the epoxy group. From the viewpoint of workability, the cation 29 29 322800 201137460 In the following, a polymerization initiator which generates a cationic species or a Lewis acid and initiates polymerization of an epoxy group by irradiation of an active energy ray is referred to as a "photocationic polymerization initiator". A polymerization initiator which generates a cationic species or a Lewis acid and starts the polymerization of an epoxy group is called a "thermal cationic polymerization initiator". A photocationic polymerization initiator is used. A method of hardening an adhesive composition by irradiation with an active energy ray, which can be hardened at a normal temperature to reduce the amount of money due to heat resistance or expansion of the polarizing film, and can provide a duck film It is advantageous in this feature, and the photocationic polymerization initiator is catalyzed, so that even when the epoxy compound is mixed, the storage stability and workability are good. The starting agent may, for example, be an aromatic diazolium (diaz〇niumsalt); a wrong salt such as a sulfonium salt or an aromatic salt, and an iron: a propylene dimer complex I photocationic polymerization initiation amount, relative amount, relative The epoxy compound 1 GG parts by weight 'f is 5 to 2 parts by weight, preferably 1 part by weight or more, and more preferably 5 parts by weight or less. When the amount of the photocationic polymerization initiator is less than 0.5 part by weight based on the parts by weight of the epoxy compound, the curing is insufficient, and the mechanical strength and the subsequent strength of the hardening tend to decrease. On the other hand, when the amount of the photocationic polymerization initiator is more than 20 parts by weight based on 100 parts by weight of the compound, the hygroscopic property of the cured product is increased due to an increase in the amount of the cured substance, and the durability is lowered. The possibility of 1 . A sclerosing adhesive composition is used when a photocationic polymerization initiator is used. 322800 30 201137460 A photo sensitizer is included as needed. By using a photosensitizer, the reactivity of the cationic polymerization can be enhanced, and the mechanical strength of the cured product and subsequent strong production can be increased. The photosensitizer may, for example, be a group-based compound, an organic compound, a persulfide compound, an oxidized trouser compound, an azo compound, a diazo compound, a tooth compound, or a photoreductive dye. When the photosensitizer is blended, the amount is preferably from 1 to 20 parts by weight based on 100 parts by weight of the curable adhesive. In another aspect, the 'thermal cationic polymerization initiator may, for example, be a sulfonium salt, a porphyrin salt, or a salt, a tetrahydrogen rust, a sa(1), a stupid methyl ammonium salt, a material, or a salt (hyd nuim). Salt), several acid vinegar, sulfonate, amine, and the like. The curable adhesive composition containing an epoxy compound is preferably cured by photocationic polymerization, but the above-mentioned cerium cationic polymerization initiator may be present and hardened by thermal cationic polymerization. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, . Further, the 'curable adhesive composition' may further contain a oxetane compound (Μ1") compound eucalyptus compound to promote cationic polymerization. The oxetane compound is a compound having a 4-membered cycloalcohol in the molecule. When the 2 heterocyclic compound is adjusted, the amount thereof is 5 to 95% by weight in the sclerosing adhesive, preferably 5 to 5% by weight. In addition, the polyol compound may be a polysaccharide or an oligomer thereof comprising ethylene glycol, hexamethylene glycol or the like, a polylactic acid polyol, a polycaprolol polyol, and a 322800 31 201137460 polycarbonate . When the polyol compound is blended, the amount is usually 50% by weight or less in the cured adhesive composition, and is 3% by weight or less. Further, the curable adhesive can be contained without impairing its adhesion. Other additives may include, for example, an ion trapping agent, an antioxidant, a chain transfer agent, a sensitizer, an adhesion-imparting agent, a thermoplastic resin, a filler, a flow regulator, a plasticizer, an antifoaming agent, and the like. The ionic agent may, for example, be an inorganic compound containing a powdery material, a material, (4), a genus, a dance system, a titanium system, or the like. The antioxidant may, for example, be a hindered phenol antioxidant. After the adhesive film of the epoxy compound is applied to the adhesive film or the adhesive film or the adhesive surface of the transparent protective film or the surface of the adhesive film, the surface coated with the adhesive is attached and irradiated with active energy rays. Or heating to harden the uncured adhesive layer, then the money and coffee protection can be followed. With regard to the subsequent (four) coating method, such as: doctor blade, wire bar, mold Various coating methods such as coater coater, comma coater (c〇mma coffee), gravure coater, etc. 丨附%丨u杜 comparator composition, basically can be used as A solvent-free solvent-free adhesive is used. However, depending on the optimum viscosity range of each coating method, it is also possible to adjust the viscosity to contain a solvent so as not to weaken the optical properties of the polarizing film, and it can be a good ring. Oxygen compounds are the best organic solvents for each component. In the case of f-benzene as a representative hydrocarbon, a chelate for the purpose of acetic acid, and the like. < 322800 32 201137460 When the adhesive composition is cured by irradiation of an active energy ray, the active energy ray may be used as described above. The substance is preferably an ultraviolet ray in terms of easy availability and easy control of the amount of irradiation light, etc. Regarding the active enthalpy line, for example, the irradiation intensity or the irradiation amount of the ultraviolet ray is based on the degree of polarization which does not affect the polarizing film. The various optical properties and the various optical properties of the transparent protective film, which are based on transparency or phase difference characteristics, are appropriately determined in such a manner as to maintain moderate productivity. When the adhesive composition is hardened by heat, It is generally known that the method is such that the thermal cationic polymer material #1 formulated in the composition of the curable adhesive agent is subjected to a temperature above the temperature of the secret seed or the acid (the fourth) acid, and the specific heating temperature is, for example, 50 to 200 ° C. [Adhesive layer] On the liquid crystal cell side of the front side polarizing plate 20 described above, the transparent protective film 26 is laminated. The first adhesive layer 4 is laminated on the transparent protective film 36 on the liquid crystal cell side of the back side polarizing plate 30, and the second adhesive layer 50 is laminated. These adhesive layers 40, 50 are used to polarize the front side. The plate 20 and the back side polarizing plate 30 are respectively bonded to the liquid crystal cell 10, and an adhesive for forming each adhesive layer is also referred to as a pressure-sensitive adhesive light: the upper surface is excellent in a month and includes moderately Wetting property, agglutination ^, etc.: those with excellent adhesion characteristics are preferred, especially those with excellent sputum properties. «And f 'forms the adhesive layer of the (four) agent layer to make the adhesive of the acid resin Acrylic adhesives are preferred. Acrylic resins contained in acrylic adhesives are diacids 33 322800 201137460 Ding, ethyl acetoacetate, isooctyl acrylate, and 2-ethyl acrylate A resin such as an alkyl acrylate such as hexyl ester as a main monomer. The acrylic resin is usually copolymerized with a polar monomer. The polar monosystem refers to a compound having a polymerizable unsaturated bond and a polar functional group. Here, the polymerizable unsaturated bond is generally derived from a (fluorenyl) acrylonitrile group, and the polar functional group may be a carboxyl group, a hydroxyl group or a hydrazine. Amine group, amine group, epoxy group and the like. Specific examples of the polar monomer include, for example, (fluorenyl)acrylic acid, 2-hydroxypropyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, (mercapto)acrylamide, and mercapto 2-N,N-dimethylaminoethyl acrylate, glycidyl (meth) acrylate, and the like. Further, in the acrylic adhesive, an acrylic resin and a crosslinking agent are usually blended at the same time. The representative example of the crosslinking agent may, for example, be an isocyanate compound having at least two isocyanato groups (-NC0) in the molecule. Various additives can be formulated in the adhesive. Suitable additives are exemplified by decane coupling agents or antistatic agents. The decane coupling agent can effectively increase the adhesion to the glass. Antistatic agents are effective in reducing or preventing the generation of static electricity. In general, when a polarizing plate is attached to a liquid crystal cell via an adhesive layer, a surface protective film (separator) previously covered with an adhesive layer is first peeled off and then bonded to the liquid crystal cell. In the liquid crystal cell, the static electricity generated when the surface protective film is peeled off causes poor alignment of the liquid crystal in the liquid crystal cell, which may cause poor display of the liquid crystal display device. In order to reduce or prevent the occurrence of such static electricity, the means for formulating an antistatic agent in the adhesive is effective. The adhesive layer 40, 50 is formed by dissolving the above-mentioned adhesive component in an organic solvent to prepare an adhesive composition, and then directly coating the transparent protective film 26 of the polarizing plate with a coating of 34 322800 201137460. Applying the above-mentioned adhesive composition to the release-treated surface of the substrate film composed of the resin film which has been subjected to the release treatment, or the solvent After the drying is removed, an adhesive layer is formed, and this is formed by a transfer method in which the polarizing plate is protected by the protective tapes 26, 36. When the dot layer 40, 50 is formed on the transparent protective film 26 by the direct coating method of the former, the release-treated resin/(also as a spacer) is temporarily adhered to the surface to temporarily protect the adhesive. The surface of the layer is conventional until it is used. From the viewpoint of the handleability of the adhesive composition of the organic solvent solution, etc., the transfer method of the secret is often used. In this case, the base (4) which is subjected to the release treatment at the beginning of the formation of the adhesive layer can be adhered to the polarized light. It is also convenient to use the back of the board as a compartment. [Moisture Ratio of Polarizing Plate] In the present invention, the ratio of the moisture ratio 1 of the front side polarizing plate 20 to the moisture ratio of the back side polarizing plate 30, Wi/W2 =, is referred to in Fig. i. When the relationship between the moisture content of the front side polarizing plate 20 and the moisture of the back side surface plate 30 is within this range, the light supplied from the back t 70 at the time of lighting causes the temperature of the liquid crystal surface (4) 0 to exaggerate the polarizing plate 2 〇, 3〇 evaporation, and the flatness of the shrinkage is good, which suppresses the distortion of the liquid crystal panel. The adjustment of the partial water (4) (4) method has no special _, 々. For example, when the moisture content decreases, the drying oven is adopted. : The method of treating the polarizing plate is better. In addition, when the water: rate:; is used for humidifying the polarizing plate for use in a fish-heating furnace, etc., the method of 322800 35 201137460, etc. The polarizing plate is carried out, and the blade-shaped polarizing plate can be used for the additional φ, and the processing of the roller-shaped polarizing plate can be processed and the polarizing plate processing can be processed. [The constituent members of the polarizing plate are formed. Thickness] The surface-side polarizing plate 2 〇 ' is preferably such that the thickness of the transparent protective film 25 located farther from the liquid crystal cell 10 than the transparent protective film 26 located on the side of the liquid crystal cell 1 is attached to the transparent protective layer The total thickness of the first-adhesive layer 40 of the film 26 is also thick, and the back side is polarized. 3〇, preferably, the thickness of the transparent protective film 35 located farther from the liquid crystal cell 10 than the transparent protective film 36 on the side of the liquid crystal cell and the second adhesive attached to the transparent protective film 36 The total thickness of the layer 5G is also thick. Thus, with respect to the front side polarizing plate 20 and the back side polarizing plate 3, by increasing the thickness of the transparent protective films 25, 35 which are each located farther from the liquid crystal cell 10, even if it is located in the liquid crystal The transparent protective films 26, 36 on the side of the unit 10 are thinned, and the handleability when using a large-sized polarizing plate having a diagonal of 32 吋 (about 81 cm) or more can be improved, and the tilt of the liquid crystal panel 60 can be more effectively suppressed. The transparent protective films 26, 36 of the polarizing plates 20, 30 on the side of the liquid crystal cell 1 are preferably set to have a thickness of about 2 〇 to 50 / / m. Adhesives attached thereto. The layers 40, 50 may be set to have respective thicknesses in the range of about 1 〇 to 30 / ζ η. Here, the polarizing plates 2, 30 are located on the far side from the liquid crystal cell 10, and the respective thicknesses thereof are transparent. Compared to the thickness of the transparent protective film 26, 36 located on the side of the liquid crystal cell 10, It is preferable to increase to at least l〇em, and it is preferable to increase to at least more than 30/zm, and 'as described above, as long as the front side polarizing plate 2 is set to 36 322800 201137460 two-way liquid θ3 The thick ridge of the transparent film 25 on the far side of the early element is located at the thickness of the transparent retaining shaft 26 and the first layer of the adhesive layer affixed thereto, and the (four) face-side polarizing plate 30 is located at the bristle unit 2 The thickness of the transparent protective film 35 is thicker than the total thickness of the transparent protective film 36 on the liquid crystal cell side and the second adhesive layer 50 attached thereto, so that the transparent (four) protective film 26 36 on the liquid unit side is provided. The thickness of each of the first adhesive agent booth 〇 and the second adhesive layer 50 are each about 25//m' each of which is located at a distance from the liquid crystal. The thickness of the transparent protective films 25, 35 on the far side of the early ridge is about 80 m each, which is a preferred form. [Backlight Module] The backlight module 70 is composed of a light source member including at least light for supplying display to the liquid crystal cell 1 . The light source member may be in the form of a so-called "side light" type composed of a light guide plate and a light source disposed on the side surface or opposite sides thereof, or a plurality of light sources and The light diffusing plate on the upper side (toward the side of the liquid crystal cell 10) is in the form of a straight type. Regardless of the form, a light reflecting layer is usually provided in the form of a sheet or a coating layer on the back surface of the light source member (far side from the liquid crystal cell 10). Further, on the light-emitting side of the light source member (the side facing the liquid crystal cell 10), an optical member such as a light-collecting sheet or a diffusion film of one to a plurality of layers may be separately disposed. The backlight module 70 itself has the components described herein and can take any configuration employed in the art. (Examples) Hereinafter, the present invention will be further specifically described by way of Examples, but the present invention is not limited to the Examples. In the example, the content and the amount of use 322800 37 201137460 are the weight basis unless otherwise noted. Further, the measurement of each physical property in the following examples was carried out by the following method. (1) Measurement of thickness: A measurement was made using a digital micrometer "MH-15M" manufactured by Nikon Co., Ltd. (2) Measurement of in-plane retardation and thickness direction retardation: Using a phase difference meter "K0BRA-21ADH" based on the principle of parallel polarizer (paral lei nicols) rotation manufactured by Oji Scientific Instruments Co., Ltd., at a temperature of 23t, The in-plane retardation and the thickness direction retardation at a wavelength of 590 nm were measured. (3) The moisture content of the polarizing plate is measured. The polarizing plate of the size of 150_xl50mm (before the formation of the adhesive layer) is placed in a drying oven maintained at l〇5±l°c for 60 minutes, and placed in a drying oven. The previous weight (weight before drying) and the weight (dry weight after drying) placed in the drying oven were calculated as the moisture content of the polarizing plate according to the following formula.

偏光板的水分率（％)=[(乾燥前重量-乾燥後重量）/乾燥前重量]xlOO 實施例1 (水系接著劑的調製）相對於水1〇〇份’溶解3份之由Kuraray股份公司購得之羧基改質聚乙烯醇“KL-318”（商品名稱），於其水溶液中添加1. 5份之由住化Chemtex股份公司購得之“Sumirez Resin 650(30)”（商品名稱，固形份濃度30%之水溶液），調製水系接著劑。 38 322800 201137460 (偏光板的製作）將由富士 film股份公司所構得之厚度8〇_的三醋酸纖維素膜“TD酬L”（商品名稱）施以矣化處理，作為配置於距液晶單元較遠侧的透明保護膜25,35。此外，由K〇nica ;MinQHaOptQ股份公司_得之厚度…m的三醋酸纖維 : 素膜“KC4UEW，，（商品名稱），其面内的延遲為〇.7nm，厚度方向的延遲為O.lnm。對此施以矣化處理後，作為配置於液晶單元侧的透明保護膜26, 36。 “於聚乙烯醇膜吸附定向有碘之其厚度約為28的偏光膜的一面，經由上述調製之水系接著劑而貼合上述厚度刖//m的透明保護膜，於另一面則同樣經由水系接著劑而貼合上述厚度40 的透明保護膜，之後以8(rc乾燥5分鐘’製作偏光板。 (附有黏著劑層之偏光板的製作）使用上述所製作之偏光板，於厚度4〇从m的透明保護膜面貼合黏著劑薄片，製作附有黏著劑層之偏光板。將此附有黏著劑層之偏光板，以吸收軸作為長側方向、或者以吸收軸作為短侧方向，分別裁切為寬32型尺寸[對角32 吋（約81cm)，寬約71cmx縱約40cm]。此等偏光板於處理時表示出良好的處理性。 (液晶顯示裝置之製作與評價）將Panasonic股份公司製造之IPS模式的寬32型[對角32忖（約81cm)，寬約71cmx縱約40cm]液晶電視“VIERA，， (型號：VIERA TH-L32X1)分解，並剝離其液晶單元上下的 39 322800 201137460 偏光板，將上述附有黏著劑層之偏光板替代原本的偏光板，以成為正交偏光鏡（crossed nicols)狀態之方式分別經由黏著劑層侧而貼合於液晶單元的前面側（視認側）及背面侧 (背光側），製作液晶面板60。此時，前面侧偏光板2〇的吸收軸係配置成與液晶單元10内液晶分子的無外加電壓 (黑晝面）時的定向方向平行。此外，分別於前面側偏光板 20配置水分率高者、於背面側偏光板30配置水分率低者，使（前面侧偏光板20的水分率W!/背面侧偏光板30的水分率WO之比為1. 〇5。將此液晶面板60放置於溫度4〇°c、相對'屋度95%的環境下96小時後，取出並放置於溫度22 °C、相對溼度55%的環境下1日。使用此液晶面板而再度組裝IPS模式液晶顯示裝置，點亮背光，於一小時後觀察時並未發現顯示色斑。 ' 實施例2 (偏光板的製作）、除了將位於距液晶單元ίο較遠侧的透明保護膜25,35 變更為由Konica Minolta 〇pto股份公司所購得之’ 心的三醋酸纖維素膜“謂X” (商品名稱)之外：施例1進行相同操作而製作偏光板。 ' (附有黏著劑層之偏光板的製作）使用上述所製作之偏光板，於膜面貼合黏著㈣H n 一的透明保護附右赴：f溥片’製作有黏著劑層之偏光板。將此 =點者劑層之偏光板，以吸收軸作為長側方向及收轴作為短側方向，分別裁切為寬32型尺寸[對 322800 40 201137460 :=〇〇、寬約71cmx縱約4〇Cm]。此等偏光日子表不出良好的處理性。 (液晶顯示裝置之製作與評價） ^使用在此所製作之时㈣劑狀偏光板以外， /、餘”實施例1進行相同操作而製作液晶面板⑼。 :前面側偏光板20配置水分率置水々率低者，使（前面側偏光板20的水分率Wl/背面侧偏光板30的水分率W2)之比為丨· 1()。將此液晶面板〇放置於溫度批、相㈣度95%的環境下96小時後取出，然後放置於溫度22Ϊ、相對歷度55%的環境下i日。使用此液晶面板而再度組裝lps模式液晶顯示裝置，點亮背光’於—小時後觀察時，雖發現若干的顯示色斑，但其° 為視認上不成問題之程度。比較例1 使用與實施例2同樣的附有黏著劑層之偏光板，分別於前面側偏光板20配置水分率高者、於背面側偏光板3〇配置水分率低者’使（前面側偏光板20的水分率Wi/背面側偏光板30的水分率W2)之比為丨.31，製作液晶面板6〇，並且組裝液晶顯示裝置’同樣地進行評價。結果，於點亮背光一小時後進行觀察時，發現顯示色斑。、‘"儿將以上的實施例及比較例之偏光板的水分率比％構成偏光板的保護膜及㈣綱的厚度、與評價結果一併歸納如表1。 ' 322800 41 201137460 [表1] W./W2 保護膜之厚度黏著劑層液晶顯示裝置距液晶單元較遠側液晶單元側之厚度的顯示色斑實施例1 1.05 80/zm 40//m 25 μ m 無 // 2 1.10 80 "m 40/zra 25 /zm 雖有若干，但不成問題比較例1 1.31 80 /zm 40 25/zm 有【圖式簡單說明】第1圖係表示本發明之液晶顯示裝置的層構成之剖面示意圖。【主要元件符號說明】 10 液晶單元 11，12 單元基板 15 液晶層 20 前面侧偏光板 21 偏光膜 25, 26 透明保護膜 30 背面側偏光板 31 偏光膜 35, 36 透明保護膜 40 第一黏著劑層 50 第二黏著劑層 60 液晶面板 70 背光模組 42 322800Moisture rate (%) of polarizing plate = [(pre-drying weight - dry weight) / pre-drying weight] xlOO Example 1 (Preparation of water-based adhesive) Dissolving 3 parts of water by 1 part by Kuraray The company purchased the carboxy-modified polyvinyl alcohol "KL-318" (trade name), and added 1.5 parts of its "Sumirez Resin 650 (30)" purchased by Chemtex AG. An aqueous solution having a solid concentration of 30%) was prepared as a water-based adhesive. 38 322800 201137460 (Preparation of polarizing plate) The triacetate film "TD Reward L" (trade name) of a thickness of 8 〇 constituted by Fujifilm Co., Ltd. was subjected to hydration treatment as a configuration in the liquid crystal cell. The transparent protective film 25, 35 on the far side. In addition, by K〇nica; MinQHaOptQ Co., Ltd. _ obtained thickness ... m of triacetate: plain film "KC4UEW,, (commodity name), its in-plane retardation is 〇.7nm, thickness direction delay is O.lnm After the deuteration treatment, the transparent protective film 26, 36 disposed on the liquid crystal cell side is placed on the side of the polarizing film having a thickness of about 28 on the polyvinyl alcohol film. The transparent protective film having a thickness of 刖//m was bonded to the water-based adhesive, and the transparent protective film having the thickness of 40 was bonded to the other surface via a water-based adhesive, and then a polarizing plate was produced by 8 (r drying for 5 minutes). (Production of Polarizing Plate with Adhesive Layer) Using the polarizing plate prepared above, an adhesive sheet was bonded to a transparent protective film surface having a thickness of 4 m from m to prepare a polarizing plate with an adhesive layer. The polarizing plate having the adhesive layer is cut into a wide 32-direction size with the absorption axis as the long side direction or the absorption axis as the short side direction [diagonal 32 吋 (about 81 cm), width 71 cm x vertical about 40 cm] These polarizers show good results when processed. (Processing and evaluation of liquid crystal display device) IPS mode wide 32 type manufactured by Panasonic Corporation [diagonal 32忖 (about 81cm), width 71cmx vertical 40cm] LCD TV "VIERA,, (Model :VIERA TH-L32X1) Decomposes and peels off the 39 322800 201137460 polarizing plate above and below the liquid crystal cell, and replaces the polarizing plate with the adhesive layer above to the original polarizing plate to become the state of crossed nicols. The liquid crystal panel 60 is produced by bonding to the front side (viewing side) and the back side (backlight side) of the liquid crystal cell via the adhesive layer side. In this case, the absorption axis of the front side polarizing plate 2 is arranged to be in the liquid crystal cell. In the case where the liquid crystal molecules have no applied voltage (black enamel surface) in the direction of the liquid crystal molecules, the water repellency is higher in the front side polarizing plate 20 and lower in the rear side polarizing plate 30. The moisture ratio W of the polarizing plate 20 / the ratio of the moisture content WO of the back side polarizing plate 30 is 1. 〇 5. The liquid crystal panel 60 is placed at a temperature of 4 ° C, and is 96 hours in an environment of 95% of the house. After taking out and placing The temperature was 22 ° C and the relative humidity was 55% for 1 day. The liquid crystal panel was used to reassemble the IPS mode liquid crystal display device to illuminate the backlight, and no stain was observed when observed after one hour. 'Example 2 ( In the production of a polarizing plate, the transparent protective film 25, 35 located farther from the liquid crystal cell ίο is changed to the 'heart of the cellulose triacetate film', which is commercially available from Konica Minolta 〇pto Co., Ltd. Outside the name: Example 1 The same operation was carried out to make a polarizing plate. ' (Preparation of polarizer with adhesive layer) Using the polarizing plate prepared above, the film is bonded to the film surface. (IV) Transparent protection of H n - is attached to the right side: a film made of an adhesive layer. The polarizing plate of the layer of the dot is used as the short side direction with the absorption axis as the long side direction and the winding axis as the short side direction, respectively, and is cut into a wide 32 size [pair 322800 40 201137460:=〇〇, width about 71cmx vertical 4 〇Cm]. These polarized days do not show good handling. (Production and Evaluation of Liquid Crystal Display Device) ^ The liquid crystal panel (9) was produced by the same operation as in the case of the fourth embodiment of the production of the polarizing plate (4). The front side polarizing plate 20 was placed at a moisture ratio. When the water raft rate is low, the ratio of the moisture content W1 of the front side polarizing plate 20 / the moisture content W2 of the back side polarizing plate 30 is 丨·1 (). The liquid crystal panel 〇 is placed in the temperature batch, phase (four) degrees. After 95 hours in 95% of the environment, it was taken out and placed in an environment with a temperature of 22 Ϊ and a relative history of 55%. The LCD panel was used to reassemble the lps mode liquid crystal display device to illuminate the backlight 'after hours' observation. Although a number of display spots were found, the degree was not considered to be a problem. Comparative Example 1 Using the same polarizing plate with an adhesive layer as in Example 2, the front side polarizing plate 20 was placed at a high moisture content. The ratio of the moisture content of the front side polarizing plate 20 to the water content W2 of the back side polarizing plate 30 is 丨.31, and the liquid crystal panel 6 is produced. And assembling the liquid crystal display device' As a result, when the backlight was lighted for one hour, it was found to show a stain. [" The moisture ratio of the polarizing plate of the above examples and comparative examples constitutes a protective film of the polarizing plate and (4) The thickness and the evaluation results are summarized in Table 1. ' 322800 41 201137460 [Table 1] W./W2 Thickness of Protective Film The display color of the thickness of the liquid crystal display device on the liquid crystal cell side farther from the liquid crystal cell Speckle Example 1 1.05 80/zm 40//m 25 μ m No // 2 1.10 80 "m 40/zra 25 /zm Although there are several, it is not a problem. Comparative Example 1 1.31 80 /zm 40 25/zm BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a layer configuration of a liquid crystal display device of the present invention. [Description of main components] 10 liquid crystal cells 11, 12 unit substrate 15 liquid crystal layer 20 front side polarizing plate 21 polarizing film 25, 26 transparent protective film 30 back side polarizing plate 31 polarizing film 35, 36 transparent protective film 40 first adhesive layer 50 second adhesive layer 60 liquid crystal panel 70 backlight module 42 322800

Claims

201137460 VII. Patent application scope: 1 . A liquid crystal display device comprising: a liquid crystal cell having two cell substrates and a liquid solar layer missing therebetween, and visual recognition of the liquid crystal cell The side surface side polarizing plate is laminated on the side via the first adhesive layer, and the back side light plate laminated on the opposite side of the viewing side of the liquid crystal cell via the second adhesive layer and disposed on the outer side of the back side polarizing plate a back light unit; the front side polarizing plate and the back side polarizing plate respectively have a polarizing film and a transparent protective film disposed on both sides thereof, and the moisture content range of the front side polarizing plate= The ratio of the moisture content of the light plate to the liquid crystal display is as described above. The transparent protective film of the side surface side light plate and the back side light side plate respectively located on the liquid helium unit side has a Thick two; single: late (retardation) value. The thickness direction of the solid is extended as follows: 3. The display device described in the second or second item of the patent application is as follows::::r film protection system or one of the claims Liquid crystal 322800 1 4. 201137460, wherein the front side light panel and the back side light panel are respectively located on a far side from the liquid crystal cell, and have a transparent protective film on the liquid crystal cell side and attached to the transparent film. The total thickness of the above-mentioned adhesive layer of the protective film is thicker. 5. The liquid crystal display device according to any one of the first aspect, wherein the polarizing film of each of the front side light panel and the back side light panel and the transparent protective film disposed on both surfaces thereof are: It is bonded by a water-based adhesive containing a polyvinyl alcohol-based resin and a water-soluble epoxy resin. 6. The liquid crystal display device according to any one of the first aspect, wherein the polarizing film of the front side light panel and the back side light panel and the transparent protective film disposed on both surfaces thereof are via A laminate containing a curable adhesive composition of an epoxy compound which is cured by irradiation with an active energy ray. 7. The liquid crystal display device according to claim 6, wherein the epoxy compound comprises an epoxy compound having at least one epoxy group bonded to the alicyclic ring in the molecule. 322800