201106028 六、發明說明： 、 【發明所屬之技#領域】 本發明是濟關偏光板，更詳細而言，係有關適合作為 在液晶顯示裝ί之液日日單元（liquid crystal cel Is)與背 k 光之間所配置的背面側偏光板而使用的偏光板。又，本發 明是有關使用該偏光板的液晶面板及液晶顯示裝置。 【先前技術】 液晶顯示裝襄係作為液晶電視、液晶監視器、個人電 腦等所使用之薄犁顯不袭置’其用途正在急速擴大中。尤 其，液晶電視平蟥之擴大非常顯著，同時，對低成本化的 要求非常级切。 通常的液晶顯示襄置係由下述者所構成：由冷陰極管 或LED所成的背光、光擴散板、1片或複數片之擴散薄片、 集光薄片、及已黏貼有偏光板之液晶面板。近年，在可壁 掛式之大晝面液晶電視用途等之中，對液晶顯示裴置之薄 型化要求變得很顯著，但在此情形下，對應液晶顯示裝置 之薄型化，必須將其所使用之構件加以薄化並減少構件之 數量。 對於如此之要求，已知有藉由在液晶單元與背光之間 所配置的偏光板之單面上直接接著具有聚光性的稜鏡薄片 (prism sheet)之方法（例如 jphii-295714-A 及 JP2008-262133-A)、或使用聚光性棱鏡薄片作為在液晶面 板之背光側所配置的偏光板之保護薄片的方法（例如 JP2008-262133-A 及 JP2005-17355-A)’ 而除去 1 個或複數 3 322034 201106028 個構件，達成減少零件之數量的技術。 如上述之 JPH1 1-295714-A、JP2008-262133-A 及 JP2005-17355-A所揭示，於使用具備稜鏡薄片等薄片構件 之偏光板的液晶顯示裝置中，在其顯示上常常會有產生疊 紋（moir6)之情形。 【發明内容】 本發明是為了解決上述課題而研發者，其目的是提供 沒有疊紋等顯示不良情形而可得到畫質優秀之液晶顯示裝 置的偏光板’以及使用該偏光板的液晶面板及液晶顯不裝 置。 本發明包含以下者。 [1] 一種偏光板，具備：由已吸附配向有碘或二色性染料之 單軸延伸聚乙烯醇系樹脂薄膜所構成的偏光薄膜、與在 該偏光薄膜上經由接著劑層所積層的表面具有稜鏡形 狀或透鏡形狀之薄片構件； 該薄片構件係由熱可塑性之結晶性高分子所構成 且具有由該結晶性高分子所導致之内部霧度（haze)，該 薄片構件之内部霧度為3至60%。 [2] 如[1]之偏光板，其中，該薄片構件不含有擴散劑。 [3] 如[1]或[2]之偏光板，其中，在與偏光薄膜積層有薄片 構件之面的相反側之面，積層有光補償薄膜或保護薄 膜。 [4] 如[1]至[3]中任一項之偏光板，其係在液晶顯示裝置 中，用於作為液晶單元與背光之間所配置的背面側偏光 4 322034 201106028 板者。 [5] —種液晶面板，具備：液晶單元、與在該液晶單元上所 ，積層之如[1]至[4]中任一項之偏光板； 該偏光板係配置成··使偏光薄膜之與積層有薄片構 件的面相反側之面係與液晶單元呈相對向。 [6] —種液晶面板，具備：液晶單元、與在該液晶單元上所 積層之如[1]至[4]中任一項之偏光板； 該液晶單元具備具有規則矩陣結構之彩色濾光片， 該液晶單元與該偏光板係配置成：使上述薄片構件 所具有之稜鏡形狀或透鏡形狀之稜線分別與彩色濾光 片所具有之矩陣結構之任一邊成為平行或略平行。 [心種液晶顯示裝置，具備f光及[5]或[6]之液晶面板， 該液晶面板係配置成：使構成液晶面板的上述薄片構件 與背光呈相對向。 使用本發明之偏光板或液晶面板的液晶顯示裝置，能 抑制疊紋等顯示不良情形，其顯示品質方面優異。又，依 據本發明可達成偏光板、以及適用該偏光板之液晶面板及 液晶顯不裝置之薄化。使用本發明之偏光板或液晶面板的 本發明液晶顯示裝置，可適用在大晝面液晶電視用液晶顯 不裝置’尤其可適用於可壁掛式的液晶電視用液晶顯示裝 置。 【實施方式】 <偏光板> 第1圖是表示本發明偏光板之較佳之一例的概略截面 5 322034 201106028 圖。本發明之偏光板是如第1圖所示之偏光板1，其具備 偏光薄膜2、與在偏光薄膜2之一面上經由接著劑層4所 積層的在表面具有稜鏡形狀或透鏡形狀之薄片構件3，較 佳再具備在偏光薄膜2之另一面上經由接著劑層6所積層 之光補償薄膜或保護薄膜5。 (偏光薄膜） 在本發明之偏光板中所使用之偏光薄膜（第1圖中之 偏光薄膜2) ’具體上’係在單軸延伸之聚乙烯醇系樹脂薄 膜中吸附配向有二色性色素者。構成聚乙烯醇系樹脂薄膜 之聚乙烯醇系樹脂’可使用將聚乙酸乙烯酯系樹脂予以皂 化而成者。聚乙酸乙稀酯系樹脂之例，除了作為乙酸乙稀 酯之單獨聚合物的聚乙酸乙婦酯之外，包含：乙酸乙稀酯 與可與其共聚合的其他單體之共聚合物，例如乙婦一乙酸 乙烯酯共聚物。可與乙酸乙烯酯進行共聚合之其他單體的 例子，包含：不飽和缓酸類、稀烴類、乙稀趟類、不飽和 磺酸類、及具有銨基之丙烯醯胺類。 聚乙烯醇系樹脂之皂化度通常是85至1〇〇莫耳％左 右，而以98莫耳％以上為佳。聚乙婦醇系樹脂也可經改質， 例如亦可使用經醛類改質之聚乙烯醇縮甲醛（p〇lyvinyi formal)、聚乙婦醇縮乙搭（p〇iyvinyi acetai)、及聚乙婦 醇縮丁醛（polyvinyl butyral)等。聚乙烯醇系樹脂之聚合 度通常是1000至10000左右，以15〇〇至5〇〇〇左右為佳。 將如此之聚乙烯醇系樹脂予以製膜，可作為偏光薄膜 之素材薄膜使用。將聚乙烯醇系樹脂予以製膜之方法並無 322034 6 201106028 特別限疋，可依據則主習知的適當方法製膜。由聚 系樹脂所構成的素材薄膜之膜厚並無特別限定，^醇 至150μιη左右。 马10 偏光薄膜通常是經過下述步驟而製造：將由聚 系樹脂所構成的素材薄膜以二色性色素進行染色 ^醇 色性色素吸附的步驟（染色處理步驟）、將已吸附有二色〜 色素之聚乙稀醇系樹脂薄膜以蝴酸水溶液處理的步1'生 酸處理㈣）、以及在該徵水溶喊喊進行水洗: (水洗處理步驟）。 的步驟 日又’在製造偏光薄膜時，通常，聚乙婦醇系樹 =經單軸延伸，_單軸延伸可錢色處理㈣之前谁膜 订’也可在染色處理步驟十進行，也可在染色處理 進行。當在染色處理步驟後騎單軸延料， /可在償處理步驟之前進行，也可在猶處理步驟^伸 灯。當然’也可在料複數鋪段tit行單轴延伸。單 =伸:藉由周速不同之概筒間往單軸延伸，也可使用 同在單軸延伸。又，可為在大氣中進行延伸之乾式延伸法， 也可為在溶劑中於已使其膨潤之狀態下進行延伸之濕式延 伸法。延伸倍率通常是3至8倍左右。 染色處理步驟中，聚乙稀醇系樹脂薄膜之藉由二色性 色素而進行之染色，例如，係藉由將聚乙婦醇系樹脂薄膜 浸潰在含有二色性色素之水溶液中而進行。二色性色素例 如係使用碘、二色性染料等。二色性染料之例係包含：含 有C.I.直接紅Red 39)等雙偶氮（Dis叫 201106028 化合物的二色性直接染料、以及含有參偶氮、肆偶氮化合 物等的一色性直接染料。又，聚乙稀醇系樹脂薄膜是以在 染色處理前先施行對水之浸潰處理為佳。 使用蛾作為二色性色素時，通常，係採用在含有缺及 蛾化鉀之水溶液令浸潰聚乙稀醇系樹脂薄膜並染色之方 法。該水溶液中之碘之含量通常係在每1〇〇重量份水中為 〇.〇1至1重量份，破化鉀之含量通常係在每⑽重量份水 中為〇· 5至2G重量份。使用破作為二色性色素時，染色所 使用之水溶液之溫度（染色處理溫度）通常是至仙。c， 又，對該水溶液之浸潰時間（染色處理時間）通常 1800秒鐘。 力一万面，使用二色性染料作為二色性色素時，通 常，係採用在含有水溶性二色性染料之水溶液中浸潰聚乙 烯醇系樹脂賴並染色之方法。在該水溶液中之二色性毕 料之含量通常係在每_重量份水中為1χ1(Γ4至1〇重量 伤’而以1x10 3至1重量份為佳，以1χ1〇_^丄別_2重 量份為特佳。該水溶液也可含有硫酸納等無機鹽作為半色 助劑。細二色性染料作為二色性色料，染色所使用之 染料水溶液的溫度(染色處理溫度)通常是2〇至8〇t：，又， 對該水溶液之浸潰時間（染色處理時間）通常是^至画 秒鐘。 賴處理步驟係藉由將經二色性色素染色之聚乙烯 酵系樹脂薄膜浸潰在含有硼酸之水溶液中來進行。含有侧 酸之水溶液巾的魏之量，係縣⑽重量份水中，通常201106028 VI. Description of the Invention: [Technology of the Invention] The present invention is a polarizing plate for a singularity, and more specifically, it is suitable as a liquid crystal cel Is and a back in a liquid crystal display device. A polarizing plate used for the back side polarizing plate disposed between k lights. Further, the present invention relates to a liquid crystal panel and a liquid crystal display device using the polarizing plate. [Prior Art] The liquid crystal display device is used as a thin plough for liquid crystal televisions, liquid crystal monitors, and personal computers, and its use is rapidly expanding. In particular, the expansion of LCD TVs is very significant, and at the same time, the requirements for cost reduction are very high. A typical liquid crystal display device is composed of a backlight made of a cold cathode tube or an LED, a light diffusing plate, a diffusion sheet of one or a plurality of sheets, a light collecting sheet, and a liquid crystal to which a polarizing plate has been attached. panel. In recent years, in the use of wall-mounted large-size LCD TVs, the demand for thinner liquid crystal display devices has become remarkable. However, in this case, in order to reduce the thickness of the liquid crystal display device, it is necessary to use it. The components are thinned and the number of components is reduced. For such a request, a method of directly concentrating a prism sheet having a condensing property by a single surface of a polarizing plate disposed between a liquid crystal cell and a backlight (for example, jphii-295714-A and JP2008-262133-A), or a method of using a concentrating prism sheet as a protective sheet of a polarizing plate disposed on a backlight side of a liquid crystal panel (for example, JP2008-262133-A and JP2005-17355-A) Or a number of 3 322034 201106028 components, to achieve the technology to reduce the number of parts. As disclosed in the above-mentioned JPH1 1-295714-A, JP 2008-262133-A, and JP 2005-17355-A, in a liquid crystal display device using a polarizing plate having a sheet member such as a ruthenium sheet, it is often produced on the display thereof. The case of moiré (moir6). SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a polarizing plate for obtaining a liquid crystal display device having excellent image quality without display defects such as embossing, and a liquid crystal panel and liquid crystal using the same. No device. The present invention includes the following. [1] A polarizing plate comprising: a polarizing film comprising a uniaxially-stretched polyvinyl alcohol-based resin film having an adsorbed iodine or a dichroic dye; and a surface laminated on the polarizing film via an adhesive layer a sheet member having a crucible shape or a lens shape; the sheet member is composed of a thermoplastic crystalline polymer and having an internal haze caused by the crystalline polymer, and an internal haze of the sheet member It is 3 to 60%. [2] The polarizing plate of [1], wherein the sheet member does not contain a diffusing agent. [3] The polarizing plate of [1] or [2], wherein a light compensation film or a protective film is laminated on a surface opposite to a surface on which the sheet member is laminated with the polarizing film. [4] The polarizing plate according to any one of [1] to [3] which is used in a liquid crystal display device as a back side polarized light disposed between the liquid crystal cell and the backlight 4 322034 201106028. [5] A liquid crystal panel comprising: a liquid crystal cell; and a polarizing plate according to any one of [1] to [4] laminated on the liquid crystal cell; wherein the polarizing plate is configured to make a polarizing film The surface opposite to the surface on which the sheet member is laminated is opposed to the liquid crystal cell. [6] A liquid crystal panel comprising: a liquid crystal cell; and a polarizing plate according to any one of [1] to [4] laminated on the liquid crystal cell; the liquid crystal cell having color filter having a regular matrix structure The liquid crystal cell and the polarizing plate are disposed such that a ridge line having a meandering shape or a lens shape of the sheet member is parallel or slightly parallel to either side of a matrix structure of the color filter. [Heart type liquid crystal display device includes f-light and a liquid crystal panel of [5] or [6], and the liquid crystal panel is disposed such that the sheet member constituting the liquid crystal panel faces the backlight. In the liquid crystal display device using the polarizing plate or the liquid crystal panel of the present invention, display defects such as embossing can be suppressed, and the display quality is excellent. Further, according to the present invention, it is possible to achieve a thinning of a polarizing plate and a liquid crystal panel and a liquid crystal display device to which the polarizing plate is applied. The liquid crystal display device of the present invention using the polarizing plate or the liquid crystal panel of the present invention can be suitably applied to a liquid crystal display device for a wall-mounted liquid crystal television. [Embodiment] <Polarizing Plate> Fig. 1 is a view showing a schematic cross section of a preferred example of the polarizing plate of the present invention 5 322034 201106028. The polarizing plate of the present invention is a polarizing plate 1 as shown in Fig. 1, and includes a polarizing film 2 and a sheet having a meandering shape or a lens shape on the surface of the polarizing film 2 via the adhesive layer 4 The member 3 preferably further includes an optical compensation film or a protective film 5 laminated on the other surface of the polarizing film 2 via the adhesive layer 6. (Polarizing film) The polarizing film (the polarizing film 2 in Fig. 1) used in the polarizing plate of the present invention is 'specifically' adsorbed and aligned with a dichroic dye in a uniaxially stretched polyvinyl alcohol resin film. By. The polyvinyl alcohol-based resin constituting the polyvinyl alcohol-based resin film can be saponified by using a polyvinyl acetate-based resin. Examples of the polyvinyl acetate-based resin include, in addition to the polyethylene acetate as a separate polymer of ethylene carbonate, a copolymer of ethylene carbonate and other monomers copolymerizable therewith, for example Ethylene-vinyl acetate copolymer. Examples of other monomers copolymerizable with vinyl acetate include unsaturated acid retardants, dilute hydrocarbons, ethyl sulfoniums, unsaturated sulfonic acids, and acrylamides having ammonium groups. The degree of saponification of the polyvinyl alcohol-based resin is usually from 85 to 1 mol%, and more preferably 98 mol% or more. The polyethylidene alcohol resin can also be modified, for example, an aldehyde-modified polyvinyl formal (p〇lyvinyi formal), a polyethyl alcohol acetal (p〇iyvinyi acetai), and a poly Polyvinyl butyral (polyvinyl butyral) and the like. The degree of polymerization of the polyvinyl alcohol-based resin is usually from about 1,000 to 10,000, preferably from about 15 Torr to about 5 Torr. Such a polyvinyl alcohol-based resin can be used as a film of a polarizing film. The method of forming a film of a polyvinyl alcohol-based resin is not limited to 322034 6 201106028, and a film can be formed according to an appropriate method known in the art. The film thickness of the material film composed of the polymer resin is not particularly limited, and is about 150 μm. The horse 10 polarizing film is usually produced by the following steps: a step of dyeing a material film made of a polymer resin with a dichroic dye, and a step of adsorbing the alcohol coloring dye (dyeing step), and having adsorbed two colors~ The pigmented polyethylene resin film is treated with the aqueous solution of the aqueous acid acid in step 1 'acidification treatment (IV)), and the water is washed in the water and shouted: (water washing treatment step). On the step of the day, when manufacturing a polarizing film, usually, the polyethyl alcohol tree is = uniaxially stretched, _ uniaxially stretchable can be processed (4) before the film can be ordered in the dyeing process step ten, or The dyeing process is carried out. When riding a single-axis extension after the dyeing process, / can be carried out before the processing step, or in the step of processing. Of course, it is also possible to extend the uniaxial extension of the multi-plot tit line. Single = extension: It can also be extended by a single axis by means of different circumferential speeds. Further, it may be a dry stretching method in which stretching is carried out in the air, or may be a wet stretching method in which a film is stretched in a state of being swollen. The stretching ratio is usually about 3 to 8 times. In the dyeing treatment step, the polyethylene glycol-based resin film is dyed by a dichroic dye, for example, by impregnating a polyethylene glycol-based resin film in an aqueous solution containing a dichroic dye. . The dichroic dye is, for example, iodine or a dichroic dye. Examples of the dichroic dye include: a dichromatic direct dye containing a compound such as CI direct red Red 39) (Dis called 201106028 compound, and a one-color direct dye containing a arsenazo, an anthracene azo compound, etc.) The polyethylene glycol-based resin film is preferably subjected to a water impregnation treatment before the dyeing treatment. When a moth is used as the dichroic dye, it is usually impregnated with an aqueous solution containing potassium moth A method for dyeing a polyethylene glycol-based resin film. The content of iodine in the aqueous solution is usually 1 to 1 part by weight per 1 part by weight of water, and the content of the broken potassium is usually at (10) weight. The water content is 〇·5 to 2G parts by weight. When using as a dichroic dye, the temperature of the aqueous solution used for dyeing (dyeing treatment temperature) is usually as long as c., and the dipping time of the aqueous solution (dyeing) Processing time) usually 1800 seconds. When using a dichroic dye as a dichroic dye, it is usually impregnated with a polyvinyl alcohol-based resin in an aqueous solution containing a water-soluble dichroic dye and dyed. Square The content of the dichroic material in the aqueous solution is usually 1χ1 per _ part by weight of water (Γ4 to 1〇 weight injury' and 1x10 3 to 1 part by weight, preferably 1χ1〇_^丄_ 2 parts by weight is particularly preferred. The aqueous solution may also contain an inorganic salt such as sodium sulphate as a half-color auxiliary. A fine dichroic dye is used as a dichroic coloring material, and the temperature of the dye aqueous solution used for dyeing (dyeing treatment temperature) is usually 2〇至8〇t:, again, the immersion time (staining treatment time) of the aqueous solution is usually from 2 to 2 seconds. The treatment step is a polyethylene glycol resin film dyed by a dichroic dye. The impregnation is carried out in an aqueous solution containing boric acid. The amount of Wei-containing aqueous solution containing the side acid is in the county (10) parts by weight of water, usually
S 322034 201106028 為2至15重量份，而以5至12重量份為佳。 當使用碘作為上述染色處理步驟中之二色性色素時， 在此硼酸處理步驟中所使用之含有硼酸之水溶液係以含有 碘化鉀為佳。此時，在含有硼酸之水溶液中的碘化鉀之量， 係在每100重量份水中，通常為0. 1至15重量份，而以5 至12重量份為佳。對含有硼酸之水溶液的浸潰時間（硼酸 處理時間）通常是60至1200秒鐘，而以150至600秒鐘為 佳，更佳是200至400秒鐘。含有硼酸之水溶液的溫度（硼 酸處理溫度）通常是50°C以上，而以50至85°C為佳，更佳 是 60 至 80°C。 在後續的水洗處理步驟中，係將經上述硼酸處理後之 聚乙稀醇系樹脂薄膜，例如藉由在水中浸潰而進行水洗處 理。水洗處理中之水的溫度（水洗處理溫度）通常是5至40 °C，浸潰時間（水洗處理時間）通常是1至120秒鐘。水洗 處理後，通常施行乾燥處理，而得到偏光薄膜。乾燥處理 可使用例如熱風乾燥機、遠紅外線加熱機等來進行。乾燥 處理的溫度通常是30至100°C，而以50至80°C為佳。乾 燥處理的時間通常是60至600秒鐘，而以120至600秒鐘 為佳。 如此，對於聚乙稀醇系樹脂薄膜，施行單軸延伸、藉 由二色性色素而進行之染色、硼酸處理及水洗處理，而得 到偏光薄膜，該偏光薄膜之厚度通常是5至40# m。本發 明之偏光板係具有如下之結構：在如此之偏光薄膜的表面 上經由接著劑層而積層著具有稜鏡形狀或透鏡形狀之薄片 9 322034 201106028 構件的結構。 (薄片構件） 本發明之偏光板中所使用之薄片構件（第1圖中之薄 片構件3)，係其一面之表面形狀為稜鏡形狀或透鏡形狀之 薄片狀構件。通常，薄片構件係積層在偏光薄膜上，使該 薄片構件的與具有稜鏡形狀或透鏡形狀之面相反側的面係 與偏光薄膜呈相對向。第2至6圖表示薄片構件之表面形 狀之較佳例的概略斜視圖。在此，稜鏡形狀係指將略三 形狀等由直線（也可在-部分中含有曲線）所構成 與該三角形狀的面垂直之方向平行移動之執跡以 狀體，於該柱狀體之底面平行地密接並經複數配7^的杈 形狀之意思，如此之稜鏡形狀之例可列舉如· 1而得的 成的 狀 形 之將二等邊三角形同樣地平行移動之執跡所顯示2圖所示 體，於該枉狀體之底面平行地密接並經複數配=的杈狀 在第2圖所示之稜鏡形狀中，截面三角形形 點之角度（頂角）’例如是以設成30至100。為佳狀中之頂 至75。為更佳。突起之間距（pitch)(相鄰之突起'^成40 的距離）是以設定成5至300# m為佳。又，勸^後線間 狀之突起高度是以設定成至為佳。又 4 鄰之截面三角形形狀的間距（頂點間的沿著與底’互相相 方向的直線距離），為了滿足前述之頂角及高声 ''行之 至 3〇〇 // m 為值。 也可為 截面三角形形狀中的二邊，可為相同之長户 10 201106028 不同之長度。又，具有棱鏡形狀的截面三角形形狀之突起 之高度可全部皆相同，也可不同。上述之頂角、間距、高 度若在上述範圍内，則在互相鄰接之各截面三角形狀之間 也可為互相不同。又，在突起間所形成之溝之形狀可為直 線，也可令該溝之至少一部分為曲線。稜鏡之截面，除了 三角形形狀之外’也可如上述而含有曲線’例如也可為如 鋸刀狀之形狀、或截面三角形狀的頂點附近形成圓狀的形 狀等。再者，在上述之定義中，嚴格而言雖不包含在内， 但也包含其截面為如正弦波之波浪狀者。 又，透鏡形狀是指將由圓弧狀之曲線（也可以包含直 線）所構成的形狀以對該圓弧形狀之面垂直之方向平行移 動之軌跡所顯示的柱狀體，於該柱狀體之底面平行密接並 經複數配列而得之形狀；或者是，將具有圓狀（可為正圓 形、楕圓形之任一圓形）、方形狀（可為正方形、長方形狀 之任一方形）、三角形狀、六角形狀等底面的圓頂狀（dome) 曲面以縱橫之方式配列而成的形狀等之意思。例如可列 舉：如第3圖所示之將由略半圓弧形狀等之曲線（也可在一 部分中含有直線）所構成之形狀以對該形狀面垂直之方向 平行移動之軌跡所顯示的柱狀體，於柱狀體之底面平行地 密接並經複數配列而得之形狀（具體上係使用柱狀透鏡薄 片（Lent icular lens sheet)等而實現）；如第4圖所示之 將具有圓狀底面之圓頂狀曲面以縱橫之方式配列而成之形 狀（具體上係使用二次元透鏡陣列薄片而實現）；如第5圖 所示之將具有正方形、長方形等方形形狀、三角形、六角 11 322034 201106028 形等多角形形狀之底面的圓頂狀曲面以縱橫之方式配列而 成之形狀（具體上係使用二次元透鏡陣列薄片而實現）等。 又，其他之透鏡形狀亦包括：如第6圖所示之將具有各種 角度之平面加以組合而成的多面體形狀（在第6圖所示之 例中，其為將四角錘狀之錐體（Pyram丨d )結構並列而成之結 構）’或是將夫涅爾透鏡（Fresnel Lens)或具有其變形形狀 者予以多數配置而成的形狀。 如第3圖所示之柱狀透鏡中，戴面半圓弧狀之間距（頂 點間之延著與底面平行之方向的直線距離）、及互相鄰接之 截面半圓弧狀的高度（底面與頂點之間的沿著垂直方向的 直線距離），分別以設為10至20〇//m、5H〇〇⑽為佳。 構成柱狀透鏡之間距及高度若在上述範_的話，則在互 相鄰接之各截面半圓弧狀之間也可互相不同…互相鄰 接之各截面半圓弧狀間的溝，可為如第3圖所示之直線， 但該溝之至少一部分也可為曲線。 又，在柱狀透鏡以外之透鏡形狀中，圓頂狀之複數突 起可為相同高度’也可具有不同高度。又，在突起間所形 成的溝之形狀，可為直線，也可為曲線。 本發明中’上述薄片構件是由熱可塑性之結晶性高分 子所構成’且具有由赌晶性高分子料致之㈣霧度。 在此’薄片構件之内部霧度是指在薄片構件所具有的霧度 (全體之霧度）中，除了由薄片檨來 又 度（表面霧度）以外之霧度構件表*之凸凹所表現的霧 薄片構件之内部霧度為3至卿，而以5至咖為佳。 322034 12 201106028 内部霧度未滿3%時，不能充分抑制疊紋，又，超過60%時， 由於從相對於液晶單元之厚度方向為傾斜之方向入射到液 晶單元中之光的成分增加，故液晶顯示裝置之正面亮度及 對比（contrast)會下降。若將具有如此範圍之内部霧度的 薄片構件積層在偏光薄膜上，即可得到在適用於液晶顯示 裝置時可有效地抑制產生疊紋的偏光板。 本發明中所使用的薄片構件所具有之由結晶性高分 子所導致之内部霧度，具體上可列舉如：構成薄片構件之 熱可塑性結晶性高分子本身的一部分已結晶化，由於在薄 片構件内形成微小的結晶化區域（Domain)而表現的内部霧 度。此時，結晶性高分子之非結晶化區域、以及顯示與非 結晶化區域不同折射率之結晶化區域係因在薄片構件内並 存，故薄片構件會表現光擴散性，顯示内部霧度。 構成薄片構件之熱可塑性結晶性高分子的例子包含： 聚乙烯、聚丙烯等聚烯烴系樹脂及聚對苯二曱酸乙二酯等 聚酯系樹脂。從結晶性良好、容易表現内部霧度之觀點而 言，以使用聚烯烴系樹脂為佳，其中又以使用聚丙烯為更 佳。 使用上述熱可塑性的結晶性高分子來製造具有由結 晶性高分子所導致之内部霧度的薄片構材的方法的例子， 包含：光聚合物製程法、異型擠壓法、加壓成形法、射出 成形法、親筒轉印法、雷射剝離法（1 aser ab 1 at i on)、機 械切削法及機械研削法。此等方法可分別獨立地實施，或 是也可與其他之1種以上的方法組合而實施。此等之方法 13 322034 201106028 中’當由經成形而賦予棱鏡形狀或透鏡形狀之結晶性含八 =構成之W狀物在冷卻時，或是由供以成形前之= 性向分子所構成之基材薄片在製作中之冷卻時，對於= 部溫度或冷卻速度等予以調签，即可控制結晶性高分= 結晶化度，藉此，可在薄片構材中控制内部霧度值。 薄片構材可含有無機微粒子或有機微粒子 劑。此時，薄片構材具有由結晶性高分子所導致之内^ 度’同時亦具有源自光擴散劑之内部霧度。惟，考慮到 造時之原料處理的煩雜度、薄片構材之生產性的^、以 及包括製品缺陷等之品質不良情形的容易產生度等，在薄 片構材中以不含擴散劑，實質上只由作為薄片構材之基材 的結晶性高分子來表現内部霧度為佳。又，薄片構材可因 應需，而含有紫外線吸收劑、抗氧化劑、可塑劑等添加劑。 薄片構材之厚度並無特別限定，從偏光板之薄化的觀 點而言，以20至200#m為佳，更佳為3〇至1〇Mm。 在偏光薄臈的與積層有上述薄片構件之面相反側之 面上，也可形成用以黏貼液晶單元與偏光板的接著劑或黏 著劑之層。又，在偏光薄膜的與積層有上述薄片構件之面 相反側之面上，亦可積層保護薄膜或光補償薄膜等透明薄 膜，並在該透明薄膜上形成接著劑或黏著劑之層。透明薄 膜可列舉如··三乙醯基纖維素薄膜（TAC薄膜）等纖維素系 樹月曰薄膜、聚稀煙系樹脂薄膜、丙稀酸系樹脂薄膜、聚對 本一曱酸乙一 S旨等聚g旨系樹脂薄膜等。進一步，在上述透 明薄膜上，亦可經由黏著劑層等而積層後述之光學機能性 322034 14 201106028 薄膜，並在該光學機能性薄膜上形成接著劑或黏著齊彳之斤。 構成上述纖維素系樹脂薄膜之纖維素系樹脂，包含纖 維素之部分醋化物或完全醋化物，例如包含··纖維素之乙 酸酯、丙酸酯、丁酸酯、及此等之混合酯。具體例包含. 三乙醯基纖維素、二乙醯基纖維素、纖維素乙酸酯丙酸酯、 及纖維素乙酸酯丁酸酯。將如此之纖維素系樹脂予以製臈 而做成薄膜時’適合使用溶劑澆鑄（solventcasting)法'、 熔融擠壓法等習知之方法。纖維素酯系樹脂薄膜之市售品 之例子，包含「卩1^忖3(：丁〇80」（富士軟片（股）製）、「{?11^七北 TD80UF」（富 士軟片（股）製）、rFuj.itac TD8〇uz」（富 士軟 片（股）製）、「KC8UX2M」（Konica minolta opto(股）製）及 KC8UY」（Konica minolta opto(股）製）。 又’由纖維素系樹脂薄膜所構成之光補償薄膜之例 :德包含：在上述纖維素系樹脂薄膜中含有具有相位差調 :相==薄膜;在纖維素系樹脂薄膜表面塗布具 進行單軸延伸化合物的使纖維素系樹脂薄膜 早釉L伸或料延伸而得之薄膜。 例子市::由糸樹脂薄膜所構成之光補償薄膜之 ㈣一二 ==:，K:::BZ 438」、「職」、 由纖維素系樹P广衣之KC4FR-1」及「KC4HR-1」。 膜之厚度並無特別之保護薄膜或光補償薄 90 為更佳。厚户 20至90//m為佳，以30至 傾向，另—方面，達別以111時，薄膜之處理有變難之 旱度超過90“ ro時，加工性有變差之傾 322034 15 201106028 向’又’在偏光板之薄化或輕量化方面則為不利。 由上述聚稀烴系樹脂薄膜所構成之光補償薄膜之例 子’包含：經單軸延伸或雙軸延伸之環烯烴系樹脂薄膜。 在大型液晶電視用液晶面板，尤其是具有垂直配向（VA)模 式之液晶單元的液晶面板中’使用本發明之偏光板時，從 光學特性及耐久性之觀點而言，上述光補償薄膜也以環烯 烴系樹脂薄膜之延伸品為適用。在此，環烯烴系樹脂薄膜 例如為：以具有由降冰片烯或多環降冰片烯系單體等環狀 烯烴（環烯烴）所構成之單體之單元的熱可塑性樹脂所成之 薄膜。環烯烴系樹脂薄膜可為使用單一環烯烴的開環聚合 物之氫添加物、或使用2種以上之環烯烴的開環共聚物之 氫添加物’也可為環烯烴與鏈狀烯烴及/或具有乙烯基之 芳香私化合物荨之加成共聚物。又，在主鍵或側鍵導入極 性基者也為有效。 市售之熱可塑性環烯烴系樹脂之例子，包含：由德國 之 TOPAS ADVANCED POLYMERS GmbH 公司所出售之「Topas」、 由JSR(股）所出售之rART0N」、由日本Ze〇n(股）所出售之 「ZE0N0R」與rZE0NEX」、以及由三井化學（股）所出售之 「APPEL」（任一項都是商品名），可適宜使用此等市售之熱 可塑性環烯烴系樹脂。 ★將如此之環烯烴系樹脂進行製膜，可得到環烯烴系樹 脂薄膜。製膜方法係適合使用溶劑澆鑄法、熔融擠壓法等 習知之方法。又，例如由積水化學工業（股）所出售之 「Escena」及「SCA40」、由日本Ze〇n(股）所出售之「ze〇n〇r 322034 16 201106028 I」等=(")所出售之「删N薄膜」(任-項都是商 :此馳緒㈣膜也都有在市面上出 售，此4也可適合使用。 :經延伸之環烯烴系樹脂薄膜所構成的光補償薄膜 子又’右太厚時，加工性有變差之傾向，又，從透明性 :降:或在偏光板之薄化或輕量化方面為不利等之觀點來 看，以20至8〇 程度為佳。 本發明之偏光板，可㈣在以偏光_的—面使用 接=劑來黏貼上述薄片構件而獲得。藉此，參照第i圖， 寻在偏光薄膜2的表面經由接著劑層4而積層薄片構件 3的偏光板。在偏光薄膜的另一面上積層保 _膜5時，偏光薄膜與保護薄膜或光補償薄膜之黏貼， 同樣地讀用接著劑而進行。該接著t1丨係形成接著劑層6 在偏先溥膜上黏貼保護薄膜或光補償薄膜時，在薄片 構件之黏財所錢之接著#1、與在保護薄膜或光補償薄 膜之黏貼中所使用的接著劑，可為同種類之接著劑，也可 ，不同種類之接著劑。此等薄膜之黏貼所使用之接著劑， 可列舉如水系接著劑’亦即將接著劑成分溶解或分散於水 中之接著劑及光硬化性接著齊j。 系樹脂除了部分皂化聚乙稀醇 上述水系接著劑，在可使接著劍層變薄之觀點而 1合使用者。水线著劑之例子包含：使用聚乙稀醇^ 月曰或胺酯（urethane)樹腊作為接著舰分之水系接著剩。 使用聚乙烯醇系樹腊作為接著劍成分時，該聚乙 、完全皂化聚乙烯醇之外， 322034 17 201106028 也可為：緩基改質聚乙歸醇、乙酿乙酿基改質聚乙歸醇、 經曱基改質聚乙烯醇、胺基改質聚乙烯醇等經改質之聚乙 稀醇系樹脂。通常，以聚已埽醇系樹脂作為接著劑成分之 水系接著劑，係調製成聚己埽醇系樹脂之水溶液。接著劑 中之聚乙烯醇系樹脂的濃度，相對於水議重量份， 是1至1G重量份左右，而以1至5重量份左右為佳。 在以聚乙稀醇系樹月旨作為接著劑成分之接著劑中，為 了提冋接著it 添加乙〜輕（咖職1)、水溶性環氧樹脂 等硬化性成分或交聯劑為佳。水溶性環氧樹脂例如可適 用：對於由二伸乙基三胺、三伸乙基四胺等多伸烧基多胺 g二酸等二賴反應而得之聚醢胺多胺 (polyamidepolyamine)’使環氧氣丙烷（epichl〇r〇hydrin) 進行反應而得之聚醯胺多胺環氧樹脂。聚酿胺多胺環氧樹 月曰之市售品的例子，包含：由SumikaChemtex(股）所販售 之「SUMIREZ RESIN 650」及「SUMIREZ RESIN 67〇」、以及 由曰本PMC(股）所販售之「WS-525」。此等硬化性成分或交 聯劑之添加量（在共同添加時則為其合計量），相對於聚乙 烯醇系樹脂1 〇〇重量份’通常是1至100重量份，而以1 至50重量份為佳。上述硬化性成分、交聯劑之添加量，相 對於聚乙烯醇系樹脂100重量份，未達1重量份時，提高 接著性之效果有變小之傾向，又，上述硬化性成分、交聯 劑之添加量，相對於聚乙烯醇系樹脂1〇〇重量份，超過1〇〇 重量份時，接著劑層有變脆之傾向。 又，在使用胺酯樹脂作為接著劑成分時，適當之接著 18 322034 201106028 劑組成物的例子，包含：聚醋系離子聚合物（i onomer)型胺 酯樹脂與具有縮水甘油氧基之化合物的混合物。在此，聚 酯系離子聚合物型胺酯樹脂是指具有聚酯骨幹之胺酯樹 脂，且為在該骨幹内導入少量之離子性成分（親水成分） ‘者。由於該離子聚合物型胺酯樹脂是不使用乳化劑而直接 在水中進行乳化變成乳膠（emulsion) ’故以作成水系接著 劑為適合。 聚酯系離子聚合物型胺酯樹脂本身即為公知，例如在 JPH07-97504-A中揭示其係用以使酴系樹脂在水性媒體中 分散之高分子分散劑之例，又，JP2005-070140-A及 JP2005-181817-A中是揭示將聚酯系離子聚合物型胺g旨樹 脂與具有縮水甘油氧基之化合物的混合物作為接著劑，而 在由聚乙烯醇系樹脂所構成的偏光薄膜上黏貼環烯烴系樹 脂薄膜。 , ' —在偏光薄膜及/或黏貼於其之構件（薄片構件或 =或:補償薄膜)上塗布接著劑之方法，可為一般已知的 途右、、/、、例匕、.机延法、線棒（Meyer Bar)塗布法、凹版 涂右$點式塗布機（C_ CQater)法、刮刀法、模具 、、布^ C〇ating)法、浸潰塗布法、及喷霧法。 :义法疋&將作為被塗布物之薄膜朝略垂直方向、略 ==者之間的斜方向移動，同時將接著劑流下 ==其擴展之方法。塗布接著劑之後，將偏光薄 挾㈣進二之構件予以重疊’藉由軋親⑽r〇ller^ 挾住而進们賴絲貼。❹_之薄麟貼，例如可採 322034 19 201106028 用：塗布接著劑後，以輥筒等加壓並均勻擠壓擴展之方法； 塗布接著劑後，通過輥筒與輥筒之間，加壓並擠壓擴展之 方法等。在前者之情形中，輥筒之材質可使用金屬或橡膠 等。又，在後者之情形中，複數支之輥筒可為相同之材質， 也可為不同之材質。 上述黏貼後，藉由進行乾燥並使接著劑層硬化而可得 到偏光板。此乾燥處理例如可利用吹熱風進行，其溫度通 常是40至100°C，而以60至100°C為佳。又，乾燥時間通 常是20至1200秒鐘。 乾燥後之接著劑層之厚度通常是0.001至5/ζιη，而以 0. 01至2/zm為佳，更佳是0. 01至1 //m。乾燥後之接著劑 層的厚度未達0. 001 //m時，有接著變得不充分之疑慮， 又，乾燥後之接著劑層的厚度超過5/im時，偏光板之外觀 有發生不良情形之疑慮。此外，在乾燥、硬化前之使用上 述軋輥等而黏貼後之接著劑層的厚度係以在5/zm以下為 佳，又以在0. 01 // m以上為佳。 乾燥處理後，也可在室溫以上之溫度實施至少要半 天、通常是1天以上之熟化（curing)而得到充分之接著強 度。該熟化在典型上係以捲取為輥筒狀之狀態來進行。適 當之熟化溫度是30至50°C，更佳是在35至45°C。熟化溫 度超過50°C時，在輥筒捲之狀態中，容易發生所謂的「捲 緊」現象。又，熟化時之濕度並無特別限定，以選擇成使 相對濕度為0%至70%RH左右為佳。熟化時間通常是1至10 天左右，而以2至7天左右為佳。 20 322034 201106028 ±又，上述光硬化性接著劑之例，包含：光硬化性環氧 树脂與光陽離子聚合起始劑之混合物。光硬化性環氧樹脂 ^列，包含：脂環式環氧樹脂、不具有脂環式結構之環氧 ^脂、及此等之混合物。光硬化性接著劑除了光硬化性環 氧樹脂之外，也可包含丙_系樹脂、氧雜環丁烧—） 祕脂、胺醋樹脂、聚乙烤醇樹脂等，又，可同時含有光陽 離子聚合起始劑與光自由基聚合起始劑，或是亦可含有光 自由基聚合起始劑以取代光陽離子聚合起始劑。 使用光硬化性接著_，在偏㈣膜及/或黏貼於其 之構件（薄片構件或賴薄膜或光備償薄膜）上塗布光硬化 性接著劑’並將偏光薄膜及黏貼於其之構件料黏貼後， 藉+由照射活性能源線而使光硬化性接著劑硬化。光硬化性 接著劑之塗布m薄膜之黏貼方法，係可與水系接著劑 同樣操作。活性能_之光源並無特職定，以在波長 400nm以下具有發光分布之活性能源線為佳，具體上以 使用低壓水雜、巾壓水銀燈、高壓水銀燈、超高壓水銀 燈、化學燈、黑光燈（blaek light lamp)、微波激發水銀 燈、金屬i素燈等為佳。 +對光硬化性接著劑之光照射強度，係依據該光硬化性 接著劑之組成而適當地決定，並無特別限定，但對聚合起 始劑之活化為有效的波長區域之照射強度係、以〇. 1至 6〇〇〇mW/cifl2為佳。該照射強度為0. lmW/cm2以上時，反 應時間不會變得過長，在6000mW/cni2 以下時，由光源所 發射之熱及光硬化性接著劑之硬化時的發熱而造成環氧樹 21 322034 201106028 脂之黃變或偏光薄膜之劣化的顧慮少。對光硬化性接著劑 之光照射時間是隨每個被硬化之光硬化性接著劑而控制， 並無特別限定，但上述照射強度與照射時間之乘積所示之 累計光量係以設定在10至10000mJ/cm2為宜。對光硬化 性接著劑之累計光量在10mJ/cm2以上時，則可藉由使源 自聚合起始劑之活性種產生充足之量而更確實地進行硬化 反應。又，在10〇〇〇mJ/cm2以下時，照射時間不备 長’可維持良好的生產性。 传過 以在射而使光硬化性接著劑硬化時， 牡獨先㈣之偏光度、穿透率及色相、以 =遵薄膜及光補償薄膜之穿透性等偏光、 降之條件下進行硬化為佳。 各機此不會下 又’於薄片構件及保護薄膜或光補 之黏貼前，為了使接基心― 員4膜對偏光薄膜S 322034 201106028 is 2 to 15 parts by weight, preferably 5 to 12 parts by weight. When iodine is used as the dichroic dye in the above dyeing step, the aqueous solution containing boric acid used in the boric acid treatment step is preferably potassium iodide. In this case, the amount of potassium iodide in the aqueous solution containing boric acid is usually from 0.1 to 15 parts by weight per 100 parts by weight of water, and preferably from 5 to 12 parts by weight. The impregnation time (boric acid treatment time) for the aqueous solution containing boric acid is usually 60 to 1200 seconds, preferably 150 to 600 seconds, more preferably 200 to 400 seconds. The temperature of the aqueous solution containing boric acid (boric acid treatment temperature) is usually 50 ° C or more, preferably 50 to 85 ° C, more preferably 60 to 80 ° C. In the subsequent water washing treatment step, the polyethylene glycol-based resin film treated with the above boric acid is subjected to a water washing treatment by, for example, dipping in water. The temperature of the water in the water washing treatment (water washing treatment temperature) is usually 5 to 40 ° C, and the impregnation time (water washing treatment time) is usually 1 to 120 seconds. After the water washing treatment, drying treatment is usually carried out to obtain a polarizing film. The drying treatment can be carried out using, for example, a hot air dryer, a far infrared heater or the like. The drying treatment temperature is usually from 30 to 100 ° C, preferably from 50 to 80 ° C. The drying time is usually 60 to 600 seconds, and preferably 120 to 600 seconds. In this manner, the polyethylene resin film is subjected to uniaxial stretching, dyeing by a dichroic dye, boric acid treatment, and water washing treatment to obtain a polarizing film, and the thickness of the polarizing film is usually 5 to 40 # m. . The polarizing plate of the present invention has a structure in which a structure of a sheet having a 稜鏡 shape or a lens shape 9 322034 201106028 is laminated on the surface of such a polarizing film via an adhesive layer. (Sheet member) The sheet member (the sheet member 3 in Fig. 1) used in the polarizing plate of the present invention is a sheet-like member whose surface shape is a 稜鏡 shape or a lens shape. Usually, the sheet member is laminated on the polarizing film such that the surface of the sheet member opposite to the side having the 稜鏡 shape or the lens shape faces the polarizing film. Figs. 2 to 6 are schematic perspective views showing preferred examples of the surface shape of the sheet member. Here, the 稜鏡 shape refers to an embossed shape in which a straight line (which may also include a curve in a portion) and which is parallel to a direction perpendicular to the surface of the triangular shape, and the ridge shape is used. The bottom surface of the bottom surface is closely connected to each other and has a plurality of 杈 shapes. For example, the shape of the 稜鏡 shape can be exemplified by the formation of a parallel shape in which the equilateral triangles move in parallel. The body shown in Fig. 2 is shown in FIG. 2 in which the bottom surface of the scorpion body is in close contact with each other and has a plurality of = shape. In the 稜鏡 shape shown in FIG. 2, the angle (apex angle) of the triangular shape of the cross section is, for example, Set to 30 to 100. It is the top of the best to 75. For better. The pitch between the protrusions (the distance between the adjacent protrusions 40) is preferably set to 5 to 300 # m. Moreover, it is preferable to set the height of the protrusion between the lines after the persuasion. Further, the pitch of the triangle shape of the adjacent cross section (the straight line distance between the vertices and the bottom direction) is a value of 3 〇〇 // m in order to satisfy the above apex angle and the high sound '' line. It can also be the two sides of the triangular shape of the cross section, which can be the same length of the same long household 10 201106028. Further, the heights of the protrusions having the triangular shape of the prism shape may be all the same or different. When the apex angle, the pitch, and the height are within the above range, the triangular cross-sections adjacent to each other may be different from each other. Further, the shape of the groove formed between the protrusions may be a straight line, or at least a part of the groove may be curved. In addition to the triangular shape, the cross section of the crucible may include a curved line as described above, for example, a shape such as a saw blade shape or a circular shape near the vertex of the triangular cross section may be used. Further, in the above definition, although it is not strictly included, it also includes a wave having a cross section such as a sine wave. Further, the lens shape refers to a columnar body in which a shape formed by an arc-shaped curve (which may include a straight line) is displayed in a direction parallel to a direction perpendicular to the plane of the arc shape, and the columnar body is displayed in the columnar body. The shape in which the bottom surface is closely connected in parallel and is arranged in a plurality of shapes; or, it may have a circular shape (which may be any circle of a perfect circle or a circle), and a square shape (any square which may be a square or a rectangle) A shape in which a dome-shaped surface of a bottom surface such as a triangular shape or a hexagonal shape is arranged in a vertical and horizontal direction. For example, as shown in FIG. 3, a shape formed by a curve formed by a curve such as a slightly semicircular arc shape (which may also include a straight line in a part) is displayed in a track parallel to the direction perpendicular to the shape surface. The body is formed in a shape in which the bottom surface of the columnar body is in close contact with each other and is plurally arranged (specifically, a cylindrical lens sheet or the like is used); as shown in FIG. 4, it has a circular shape. The dome-shaped curved surface of the bottom surface is arranged in a vertical and horizontal manner (specifically, it is realized by using a secondary element lens array sheet); as shown in Fig. 5, it will have a square shape such as a square or a rectangle, a triangle, and a hexagon 11 322034 201106028 A dome-shaped curved surface having a bottom surface such as a polygonal shape is arranged in a vertical and horizontal manner (specifically, a secondary element lens array sheet is used). Further, the other lens shapes include: a polyhedral shape in which planes having various angles are combined as shown in Fig. 6 (in the example shown in Fig. 6, it is a quadrangular pyramid-shaped cone ( Pyram丨d) The structure in which the structures are juxtaposed. 'Or a shape in which a Fresnel Lens or a deformed shape is mostly configured. In the lenticular lens shown in Fig. 3, the distance between the semi-circular arcs of the wearing surface (the linear distance between the vertices extending in the direction parallel to the bottom surface) and the height of the semi-arc-shaped cross-section adjacent to each other (bottom surface and The linear distance between the vertices in the vertical direction is preferably set to 10 to 20 〇//m and 5H 〇〇 (10), respectively. When the distance between the lenticular lenses and the height of the lenticular lenses are in the above-described range, the mutually adjacent semi-circular arcs may be different from each other. The grooves between the semi-arc-shaped portions adjacent to each other may be 3 is a straight line as shown, but at least a portion of the groove may also be a curve. Further, in the lens shape other than the lenticular lens, the dome-shaped plural protrusions may have the same height ' or may have different heights. Further, the shape of the groove formed between the projections may be a straight line or a curved line. In the present invention, the above-mentioned sheet member is composed of a thermoplastic crystalline polymer and has a haze of a (gamma) polymer material. Here, the internal haze of the sheet member means that the haze of the sheet member (the haze of the whole) is expressed by the unevenness of the haze member table* other than the sheet haze (surface haze). The haze sheet member has an internal haze of 3 to qing, and 5 to café. 322034 12 201106028 When the internal haze is less than 3%, the embossing cannot be sufficiently suppressed, and when it exceeds 60%, the composition of light incident on the liquid crystal cell from the direction inclined with respect to the thickness direction of the liquid crystal cell increases, so The front side brightness and contrast of the liquid crystal display device will decrease. When a sheet member having such an internal haze is laminated on the polarizing film, a polarizing plate which can effectively suppress the occurrence of moiré when applied to a liquid crystal display device can be obtained. The internal haze of the sheet member used in the present invention, which is caused by the crystalline polymer, specifically, for example, a part of the thermoplastic crystalline polymer constituting the sheet member itself has been crystallized due to the sheet member. The internal haze expressed by the formation of a minute crystallized region. At this time, the amorphous region of the crystalline polymer and the crystallization region having a refractive index different from that of the non-crystallized region are present in the sheet member, so that the sheet member exhibits light diffusibility and exhibits internal haze. Examples of the thermoplastic crystalline polymer constituting the sheet member include a polyolefin resin such as polyethylene or polypropylene, and a polyester resin such as polyethylene terephthalate. From the viewpoint of good crystallinity and easy expression of internal haze, it is preferred to use a polyolefin-based resin, and it is more preferable to use polypropylene. An example of a method of producing a sheet member having an internal haze caused by a crystalline polymer using the above-described thermoplastic crystalline polymer, comprising: a photopolymer process method, a profile extrusion method, a press molding method, Injection molding method, pro-tube transfer method, laser peeling method (1 aser ab 1 at i on), mechanical cutting method and mechanical grinding method. These methods may be carried out independently or in combination with one or more other methods. In the method of 13 322034 201106028, the crystallinity of the shape of the prism or the shape of the lens is formed by shaping, and the composition of the W is formed by cooling, or by the supply of molecules before formation. When the material sheet is cooled during production, the crystallizing high score = crystallinity can be controlled by adjusting the temperature of the portion or the cooling rate, whereby the internal haze value can be controlled in the sheet member. The sheet member may contain inorganic fine particles or organic fine particles. At this time, the sheet member has an internal degree due to the crystalline polymer and also has an internal haze derived from the light diffusing agent. However, in consideration of the troublesome handling of the raw materials at the time of production, the productivity of the sheet member, and the ease of occurrence of poor quality conditions including product defects, etc., the sheet member is free of a diffusing agent, substantially It is preferable that the internal haze is expressed only by the crystalline polymer which is the base material of the sheet member. Further, the sheet member may contain an additive such as an ultraviolet absorber, an antioxidant, or a plasticizer as needed. The thickness of the sheet member is not particularly limited, and is preferably from 20 to 200 #m, more preferably from 3 to 1 Mm, from the viewpoint of thinning of the polarizing plate. A layer of an adhesive or an adhesive for adhering the liquid crystal cell and the polarizing plate may be formed on the surface of the polarizing thin film opposite to the surface on which the above-mentioned sheet member is laminated. Further, a transparent film such as a protective film or a light-compensating film may be laminated on the surface of the polarizing film opposite to the surface on which the sheet member is laminated, and a layer of an adhesive or an adhesive may be formed on the transparent film. Examples of the transparent film include a cellulose-based sapphire film such as a triacetyl phthalocyanine film (TAC film), a poly-smoke-based resin film, an acrylic resin film, and a polypyridyl sulphate. Polyg is a resin film or the like. Further, on the transparent film, an optical function 322034 14 201106028 film to be described later may be laminated via an adhesive layer or the like, and an adhesive or an adhesive may be formed on the optical functional film. The cellulose-based resin constituting the cellulose-based resin film contains a partial acetate or a complete acetate of cellulose, for example, an acetate containing cellulose, a propionate, a butyrate, and a mixed ester thereof. . Specific examples include triethyl fluorenyl cellulose, diethyl acetyl cellulose, cellulose acetate propionate, and cellulose acetate butyrate. When such a cellulose-based resin is formed into a film, a conventional method such as a solvent casting method or a melt extrusion method is used. An example of a commercial product of a cellulose ester-based resin film includes "卩1^忖3 (: Ding Hao 80) (Fuji Film Co., Ltd.), "{?11^七北TD80UF" (Fuji Film Co., Ltd.) System), rFuj.itac TD8〇uz" (Fuji Film Co., Ltd.), "KC8UX2M" (Konica Minolta opto Co., Ltd.) and KC8UY" (Konica Minolta opto Co., Ltd.) An example of the optical compensation film comprising a resin film: the cellulose-based resin film contains a phase difference: phase == film; and the surface of the cellulose resin film is coated with a uniaxially stretched compound. A film of a resin film that is stretched or stretched by an early glaze. Example City: (4) one or two ==:, K:::BZ 438", "job", made of a resin film KC4FR-1" and "KC4HR-1" from the cellulose tree P. The thickness of the film is not particularly good for the protective film or the light compensation film 90. The thicker household is preferably 20 to 90/m. 30 to the tendency, on the other hand, when Dabie is at 111, the processing of the film has a difficult degree of drought exceeding 90" ro, processability There is variation 322034 15 201106028 To 'again' is disadvantageous in terms of thinning or weight reduction of polarizing plates. Examples of optical compensation films composed of the above-mentioned polyolefin resin film include: uniaxially extending or Biaxially stretched cycloolefin-based resin film. When using the polarizing plate of the present invention in a liquid crystal panel for a large liquid crystal television, particularly a liquid crystal panel having a vertical alignment (VA) mode, the optical characteristics and durability are In view of the above, the optically-compensable film is preferably an extension of a cycloolefin-based resin film. Here, the cycloolefin-based resin film has, for example, a ring-like form of a norbornene or a polycyclic norbornene-based monomer. a film made of a thermoplastic resin in a unit of a monomer composed of an olefin (cycloolefin). The cycloolefin resin film may be a hydrogen additive using a ring-opening polymer of a single cyclic olefin, or a cycloolefin using two or more kinds thereof. The hydrogen addition of the ring-opening copolymer ' can also be an addition copolymer of a cyclic olefin with a chain olefin and/or an aromatic compound having a vinyl group. Further, in the primary bond or side bond The polar base is also effective. Examples of commercially available thermoplastic cycloolefin resins include: "Topas" sold by TOPAS ADVANCED POLYMERS GmbH of Germany, rART0N sold by JSR (shares), and Zee by Japan "ZE0N0R" and rZE0NEX sold by 〇n (shares) and "APPEL" (any of which are trade names) sold by Mitsui Chemicals Co., Ltd., which are suitable for use in these commercially available thermoplastic cyclic olefins Resin. ★ A cycloolefin-based resin film is obtained by forming such a cycloolefin resin. The film forming method is suitably a method such as a solvent casting method or a melt extrusion method. In addition, for example, "Escena" and "SCA40" sold by Sekisui Chemical Industry Co., Ltd., "ze〇n〇r 322034 16 201106028 I" sold by Japan ZeZn (shares), etc. = (") The "N-film" for sale (any item is a business: this machine (4) film is also available on the market, and this 4 is also suitable for use.: Optical compensation film composed of extended cycloolefin resin film When the right side is too thick, the workability tends to be poor, and from the viewpoint of transparency: reduction: or the disadvantage of thinning or lightening of the polarizing plate, it is 20 to 8 inches. Preferably, the polarizing plate of the present invention can be obtained by bonding the sheet member to the surface of the polarizing film by using a bonding agent. Thereby, referring to the first drawing, the surface of the polarizing film 2 is found via the adhesive layer 4 The polarizing plate of the laminated sheet member 3. When the protective film 5 is laminated on the other surface of the polarizing film, the adhesion between the polarizing film and the protective film or the optical compensation film is similarly performed by reading an adhesive. The layer 6 is adhered to the protective film or the light compensation film on the enamel film. The adhesive of the component is the same as the adhesive used in the adhesion of the protective film or the optical compensation film, and may be the same type of adhesive, or different kinds of adhesives. The adhesive to be used may, for example, be a water-based adhesive, that is, an adhesive which dissolves or disperses the adhesive component in water, and photocurability. The resin is partially saponified, and the above-mentioned water-based adhesive is saponified. In order to make the sword layer thinner, the user of the waterline agent includes: using polyethylene glycol or urethane tree wax as the water system of the subsequent ship. When the alcohol-based tree wax is used as the component of the sword, the poly-ethylated and fully saponified polyvinyl alcohol, 322034 17 201106028 may also be: a slow-based modified polyethyl alcohol, a brewed ethyl-based modified polyethyl alcohol, A modified polyethylene resin such as a thiol-modified polyvinyl alcohol or an amine-modified polyvinyl alcohol. Usually, a water-based adhesive using a polyhexanol-based resin as an adhesive component is prepared into a poly-polymer. An aqueous solution of a hexanyl alcohol resin. The concentration of the polyvinyl alcohol-based resin in the coating agent is about 1 to 1 G by weight, and preferably about 1 to 5 parts by weight, based on the weight of the water, and is preferably carried out in the form of a polyethylene glycol. In the adhesive of the agent component, it is preferred to add a curable component such as B-light (Calm 1) or a water-soluble epoxy resin or a crosslinking agent in order to improve the water-soluble epoxy resin. The epipolyamine polyamine (polyamide polyamine) obtained by reacting a polyethylidene monoamine such as ethyltriamine or tri-extension ethyltetraamine, etc., to carry out epicylhydrazine (epichl〇r〇hydrin) A polyamine epoxy resin epoxy resin obtained by the reaction. An example of a commercially available product of polystyrene polyamine epoxy resin, including "SUMIREZ RESIN 650" and "SUMIREZ RESIN" sold by Sumika Chemtex (share) "67" and "WS-525" sold by the PMC (shares). The addition amount of such a curable component or a crosslinking agent (the total amount thereof when added together) is usually 1 to 100 parts by weight with respect to 1 part by weight of the polyvinyl alcohol-based resin, and 1 to 50 parts by weight. The parts by weight are preferred. When the amount of the curable component and the cross-linking agent is less than 1 part by weight based on 100 parts by weight of the polyvinyl alcohol-based resin, the effect of improving the adhesion tends to be small, and the curable component and cross-linking are further increased. When the amount of the agent added is more than 1 part by weight based on 1 part by weight of the polyvinyl alcohol-based resin, the adhesive layer tends to become brittle. Further, in the case of using an amine ester resin as an adhesive component, an example of a composition of 18 322034 201106028, which comprises a polyacetate ionomer-type amine ester resin and a compound having a glycidoxy group, is suitably used. mixture. Here, the polyester-based ionic polymer-type urethane resin refers to an amine ester resin having a polyester backbone, and a small amount of an ionic component (hydrophilic component) is introduced into the backbone. Since the ionic polymer type amine ester resin is directly emulsified in water to form an emulsion without using an emulsifier, it is suitable as a water-based adhesive. The polyester-based ionic polymer-type urethane resin is known per se, and an example of a polymer dispersant for dispersing a lanthanoid resin in an aqueous medium is disclosed, for example, in JPH07-97504-A, and JP2005-070140 -A and JP 2005-181817-A disclose a polarizing film composed of a polyvinyl alcohol-based resin, in which a mixture of a polyester-based ionic polymer-type amine-based resin and a compound having a glycidoxy group is used as an adhesive. A cycloolefin resin film is adhered to the top. , ' - a method of applying an adhesive on a polarizing film and/or a member to which it is adhered (sheet member or = or compensation film), which can be generally known as the right side, /, and example, Method, Meyer Bar coating method, gravure coating right-point coating machine (C_CQater) method, doctor blade method, mold, cloth coating method, dip coating method, and spray method. : 义法疋 & will move as a film of the object to be coated in a slightly vertical direction, slightly in the oblique direction between ==, while the adhesive flows down == its expansion method. After the application of the adhesive, the components of the polarizing thin film (4) are overlapped by the two members of the polarizing film (4) r〇ller^.薄_的薄麟贴, for example, can be used 322034 19 201106028 by: after applying the adhesive, pressurizing with a roller or the like and uniformly extruding the method; after applying the adhesive, passing between the roller and the roller, pressurizing And squeeze the method of expansion and so on. In the case of the former, the material of the roller can be metal or rubber. Moreover, in the latter case, the plurality of rolls may be of the same material or different materials. After the above-mentioned adhesion, a polarizing plate can be obtained by drying and hardening the adhesive layer. This drying treatment can be carried out, for example, by blowing hot air, and the temperature is usually 40 to 100 ° C, and preferably 60 to 100 ° C. Also, the drying time is usually 20 to 1200 seconds. The thickness of the adhesive layer after drying is usually 0.001 to 5 / ζ ηη, preferably from 0.01 to 2 / zm, more preferably from 0.01 to 1 / m. When the thickness of the adhesive layer after drying is less than 0.001 //m, there is a concern that the thickness of the adhesive layer is insufficient. Further, when the thickness of the adhesive layer after drying exceeds 5/im, the appearance of the polarizing plate may be defective. Doubt about the situation. Further, the thickness of the adhesive layer after the use of the above-mentioned roll or the like is preferably 5/zm or less, and more preferably 0.01 or more. After the drying treatment, curing at room temperature or higher may be carried out for at least half a day, usually for one day or more, to obtain a sufficient bonding strength. This aging is typically carried out in a state of being wound into a roll. A suitable curing temperature is 30 to 50 ° C, more preferably 35 to 45 ° C. When the aging temperature exceeds 50 °C, the so-called "clamping" phenomenon easily occurs in the state of the roll. Further, the humidity at the time of ripening is not particularly limited, and it is preferably selected such that the relative humidity is about 0% to 70% RH. The ripening time is usually about 1 to 10 days, and about 2 to 7 days is preferred. 20 322034 201106028 ± Further, an example of the above photocurable adhesive comprises a mixture of a photocurable epoxy resin and a photocationic polymerization initiator. The photocurable epoxy resin column comprises: an alicyclic epoxy resin, an epoxy resin having no alicyclic structure, and a mixture thereof. The photocurable adhesive may contain, in addition to the photocurable epoxy resin, a propylene-based resin, an oxequid-based ester, an amine vinegar resin, a polyacetal resin, or the like, and may contain light at the same time. The cationic polymerization initiator and the photoradical polymerization initiator may also contain a photoradical polymerization initiator to replace the photocationic polymerization initiator. The photocurable adhesive is applied to the partial (four) film and/or the member (the sheet member or the film or the optical compensation film) adhered thereto, and the polarizing film and the member material adhered thereto are applied. After the adhesion, the photocurable adhesive is hardened by the irradiation of the active energy source. Photocuring The adhesion method of the coating m film of the subsequent agent can be carried out in the same manner as the water-based adhesive. The active energy source has no special purpose, and is preferably an active energy source having a light-emitting distribution at a wavelength of 400 nm or less. Specifically, a low-pressure water, a towel-pressure mercury lamp, a high-pressure mercury lamp, an ultra-high pressure mercury lamp, a chemical lamp, a black light lamp are used. (blaek light lamp), microwave-excited mercury lamp, metal i-lamp, etc. are preferred. The light irradiation intensity of the photocurable adhesive is appropriately determined depending on the composition of the photocurable adhesive, and is not particularly limited. However, the irradiation intensity of the wavelength region effective for activation of the polymerization initiator is It is better to use 〇. 1 to 6〇〇〇mW/cifl2. When the irradiation intensity is 0. lmW/cm2 or more, the reaction time does not become too long, and when it is 6000 mW/cni or less, the heat emitted by the light source and the heat generated by the curing of the photocurable adhesive cause the epoxy tree. 21 322034 201106028 There is less concern about the yellowing of the grease or the deterioration of the polarizing film. The light irradiation time of the photocurable adhesive is controlled according to each cured photocurable adhesive, and is not particularly limited, but the integrated light amount indicated by the product of the irradiation intensity and the irradiation time is set at 10 to 10000mJ/cm2 is suitable. When the total amount of light of the photocurable adhesive is 10 mJ/cm2 or more, the hardening reaction can be more reliably performed by generating a sufficient amount of the active species derived from the polymerization initiator. Further, when the temperature is 10 〇〇〇mJ/cm2 or less, the irradiation time is not long enough to maintain good productivity. When it is passed through the curing of the photo-curable adhesive, the polarizing degree, the transmittance and the hue of the first (4), and the polarizing and lowering of the film and the light-compensating film are hardened. It is better. This machine will not be under the front of the sheet member and the protective film or the light-compensating paste, in order to make the base member 4 film-pair polarizing film
黏目… 接考性提南’也可對於偏光薄膜及A 冰* 之構件的接著表面實施電漿處理、電量戍¥ 5 外線照射處理、火、電萆處理、紫 息化處理之例包含.a"16)處理皂化處理等表面處理。 中浸潰之方法 氣氧化納或氣氧化卸等驗性水溶液 明之偏光板巾’在偏㈣膜的與積層 1目反側之面（當積層有 ， 牛 該薄膜上），传以且^ ^補㈣膜時，則在 用之黏著劑，V使用，!層為佳。如此叫 含：丙稀。之適㈣黏著制，該例子包 系黏著劑。系黏著劑、及料氧⑹― 、中-透明性、黏著力、可信度、重工 322034 22 201106028 • 性等之觀點而言，以使用丙烯酸系黏著劑為佳。點著劑層 係可藉由將如此之黏著劑例如作成有機溶劑溶液，並將其 以模具塗布機或凹版塗布機等塗布在基材薄膜（例如偏光 薄膜等）上且使乾燥之方法來設置。又，也可藉由將形成在 — 經施行離型處理之塑膠薄膜（稱為分離薄膜）上的薄片狀黏 著劑轉印到基材薄膜上之方法來設置。黏著劑層之厚度並 無特別限定，以2至40//m為佳。 在偏光板之形成有黏著劑層的面上，亦可經由該黏著 劑層而黏貼光學機能性薄膜。光學機能性薄膜之例子包 含：在基材表面塗布有液晶性化合物並經配向之光補償薄 膜，使某種偏振光穿透’並使顯示與其相反性質之偏振光 反射的反射型偏光薄膜；由聚碳酸酯系樹脂所構成的相位 差薄膜，由壤烯糸樹脂所構成的相位差薄膜；在表面具 有凹凸形狀的附有防眩機能之薄膜；附有表面抗反射機能 之薄膜；在表面具有反射機能之反射薄膜；以及兼具反射 機能與穿透機能之半穿透反射薄膜。相當於在基材表面塗 布有液晶性化合物並經配向之光補償薄膜的市售品例子， 包含：「WV薄膜」（富士軟片（股）製）、「nh薄膜」（新曰本 石油（股）製）、及「NR薄膜」（新曰本石油（股）製）。相當 於使某種偏振光穿透並使顯示與其相反性質之偏振光反射 的反射型偏光薄膜之市售品例子，包含：「DBEF」（3M公司 製’在日本可由住友3M(股）取得）。又，相當於由環烯烴 系樹脂所構成的相位差薄膜之市售品例子，包含：「ART0N 薄膜」（JSR(股）製）、「Escena」（積水化學工業（股）製）及 23 322034 201106028 「ZE0N0R薄膜」（日本Zeon(股））。 本發明之偏光板係可適合作為在液晶顯示裝置所具 備之液晶單元與背光之間所配置的背面側偏光板而使用 者。 <液晶面板及液晶顯示裝置> 第7圖是表示本發明之液晶顯示裝置的較佳之一例之 概略截面圖’其表示使用本發明之液晶面板的液晶顯示裳 置的一例。參照第7圖，本發明之液晶面板11具備：液晶 單元13、與積層在液晶單元13上之作為本發明的偏光板 之偏光板1。液晶單元13與偏光板1係經由黏著劑層18 而黏貼，使偏光薄膜2的與積層有薄片構件3之面相反側 之面係與液晶皁元13呈相對向（亦即’使薄片構件3形成 液晶面板11之外表面）。 如此之本發明的液晶面板，通常，係以使其薄片構件 3成為背光12側之方式（以使偏光板1配置在液晶單元13 與背光12之間的方式）而適用在液晶顯示裝置1 〇。此時， 在偏光板1中，將薄片構件3積層在偏光薄膜£上，而且 使薄片構件3之與具有稜鏡形狀或透鏡形狀之面相反側之 面係與該偏光薄膜2呈相對向時，該具有稜鏡形狀或透鏡 形狀之面係變成與背光丨2呈相對向。 如第7圖所示，本發明之液晶面板中，在液晶單元之 前面側（適用於⑯晶顯示裝置時的辨識側，與積層有本發明 之偏光板之側為減側）雖也設置有偏光板，㈣於在該液 晶單元之前面側所設置之偏光板並無特別限定，可使用以 322034 24 201106028 往習知之適當的偏光板。例如，可使用經施行防眩 (anti-glare)處理、硬塗（hard coat)處理、抗反射處理之 偏光板等。又’也可為在偏光板之單面上積層有由聚對笨 二曱酸乙二酯薄膜、丙烯酸系薄膜、聚丙烯薄犋等所構成 之保護薄膜或光補償薄膜的偏光板。在第7圖所示之例子 中’液晶面板11具備在偏光薄膜14之兩面經由接著劑声 17黏貼保護膜15而成的偏光板，以作為前面側偏光板。 該前面側偏光板係經由接著劑層16而積層於液晶單元13。 液晶單元通常具備：具有將由r、G、B之3原色所構 成之四角形狀之彩色晝素予以規則地配列而成的矩陣結構 之彩色濾光片。本發明的液晶面板中，液晶單元與本發明 之偏光板係可配置成例如如第8圖所示，薄片構件3所具 有的稜鏡形狀或透鏡形狀之稜線分別與彩色濾光片13a所 具有的矩陣結構之任一邊成為平行或略平行。在第2圖所 示之棱鏡形狀及在第3圖所示之柱狀透鏡中，稜線係指由 突起（凸部）之頂點所形成之線。又，在第4至6圖等所示 之二次元透鏡陣列中，稜線係指將縱或橫方向配列的突起 頂點加以連結而成之線。彩色濾光片所具有之矩陣結構之 任一邊，係指彩色晝素之縱或橫的配列方向。 參照第7圖，作為本發明之液晶顯示裝置的液晶顯示 裝置10 ’係具備：背光12、與以使薄片構件3成為背光 12側之方式而配置的液晶面板u。如此之本發明之液晶顯 示裝置’由於具備在液晶單元之背面側黏貼有本發明之偏 光板的液晶面板’故對應薄化並具有充分之機械強度’同 25 322034 201106028 時充分抑制疊紋之產生，顯示優異之辨識性《又，由於在 液晶面板之背面侧配置有薄片構件，故防止液晶面板與背 光系統之密著，藉此，達成更進一步之辨識性之改善。 在本發明之液晶顯示裝置中，有關上述液晶面板以外 之結構’可採用以往習知之液晶顯示裝置的適當結構。例 如，本發明之液晶顯示裝置也可進一步具備光擴散板、光 擴散薄片、導光板等。作為背光系統者，除了背光之外， 可適用具備側光（side light)之導光板方式的背光系統。 實施例 以下’列舉實施例而更詳細說明本發明，但本發明不 侷限於此等實施例。 (製造例1 :偏光薄膜之製作） 將平均聚合度約2400、皂化度99. 9莫耳％以上且厚度 75# m之聚乙烯醇薄膜浸潰在30°c之純水中後，在3〇°c浸 潰在碘/碘化鉀/水之重量比為〇. 02/2/100之水溶液 中。之後’在56· 5°C浸潰在峨化鉀/蝴酸/水之重量比為 12/5/100之水溶液中。其次，以8。匸之純水洗淨後，用 65 C乾燥，得到在聚乙烯醇中吸附配向有碘之偏光薄膜。 延伸主要是纽染色及餐處理之步驟中進行，總延伸倍 率是5. 3倍。 (製造例2:紫外線硬化型接著劑之調製） 將日本Epoxy resin(股）製夕& 「EPIKOTEYX8000」（其為核氳化氧化環氧樹脂的商品名 具有約當量之環氧當…縮水甘㈣ υ·0§、曰本曹達（股）製之 322034 26 201106028 光陽離子聚合起始劑之商品名「Ci5i〇2」4. 〇g、及日本曹 達（股）製之光增感劑之商品名「CS7001」1. 〇g，藉由l〇〇ml 之抛棄式杯（disposable cup)量取，藉由混合•脫泡而調 製紫外線硬化型接著劑。 (製造例3 :三角稜鏡薄片1之製作） 在使成形後之稜鏡之間距成為5〇//1〇及稜鏡頂角成為 65°之方式而預先設計之鑄模（m〇ld)*，塗布已熔融之聚丙 烯樹脂，一面加熱一面加壓。其次，由鑄模剝離後立即冷 郃到60 C，得到由聚丙烯樹脂所構成之三角稜鏡薄片i。 任一個三角棱鏡都具有如設計之形狀。 (製造例4:三角稜鏡薄片2之製作） 除了自鑄模剝離後暫時冷卻到9〇°c並在同溫度下維 持5分鐘後，再冷卻到i〇°c之外，其餘與製造例3同樣操 作而得到由聚丙烯樹脂所構成之三角稜鏡薄片2。任一個 二角稜鏡都具有如設計之形狀。 (製造例5:三角稜鏡薄片3之製作） 除了自模具剝離後立即冷卻到1(rc之外，其餘與製造 例3同樣操作而得到由聚丙烯樹脂所構成之三角稜鏡薄片 3。任一個三角稜鏡都具有如設計之形狀。 (製造例6:三角稜鏡薄片4之製作） 在使成形後的稜鏡之間距成為5〇# m及稜鏡頂角成為 65°之方式而預先設計之鑄模中，塗布以下之混合物作為紫 外線硬化型樹脂組成物，在使其表面平滑化之後，於由紫 外線硬化型樹脂組成物所構成之層上，疊合摩度188以出 27 322034 201106028 之聚對苯二甲酸乙二酯薄膜。其次’將波長320至39〇ηιη 之紫外線以使累積照射量成為1000mJ/cm2之方式照射， 使紫外線硬化型樹脂組成物硬化。之後，藉由從鎮模制離， 而得到在聚對苯二曱酸乙二酯薄膜上積層著具有稜鏡形狀 之紫外線硬化型樹脂組成物之硬化物層的三角稜鏡薄片 4 ’任一個三角稜鏡都具有如設計之形狀。 <紫外線硬化型樹脂組成物之組成> FANCRYL FA-321M(日立化成公司製之環氧乙烷改質雙盼A 曱基丙稀酸酯）45重量份、 NK酯A-BPE-4(新中村化學公司製之環氧乙烷改質雙酚a 二丙烯酸酯）25重量份、Viscosity... The electrity of the South can also be used for the plasma treatment of the surface of the polarizing film and the A-* member, the electric charge, the external radiation treatment, the fire, the electric treatment, and the purple treatment. a " 16) treatment of surface treatment such as saponification treatment. In the middle of the impregnation method, the gas-oxidized nano- or gas-oxidation-decommissioning aqueous solution of the polarized plate towel is on the opposite side of the partial (four) film and the first layer of the laminate (when the layer is present, the film on the cow), and ^ ^ When the film is filled (4), the adhesive used in the film is used, and the layer is preferably used. So called: propylene. (4) Adhesion, this example is an adhesive. Adhesives, and oxygen (6)-, medium-transparency, adhesion, reliability, and heavy work 322034 22 201106028 • From the viewpoint of properties, it is preferable to use an acrylic adhesive. The dot layer can be set by applying such an adhesive to, for example, an organic solvent solution, and applying it to a substrate film (for example, a polarizing film or the like) by a die coater or a gravure coater or the like and drying. . Further, it may be provided by transferring a sheet-like adhesive formed on a plastic film (referred to as a separation film) subjected to release treatment to a substrate film. The thickness of the adhesive layer is not particularly limited and is preferably 2 to 40 / / m. The optical functional film may be adhered to the surface of the polarizing plate on which the adhesive layer is formed, via the adhesive layer. Examples of the optical functional film include: a light-reactive film coated with a liquid crystal compound on the surface of the substrate, and a light-compensating film which is aligned to transmit a certain polarized light and a reflective polarizing film which reflects the polarized light of the opposite nature; a retardation film made of a polycarbonate resin, a retardation film made of a cerium resin; an anti-glare film having an uneven shape on the surface; a film having a surface anti-reflection function; A reflective film of a reflective function; and a transflective film having both a reflective function and a penetrating function. An example of a commercial product corresponding to a light-compensating film coated with a liquid crystal compound on the surface of a substrate, including "WV film" (made by Fujifilm Co., Ltd.) and "nh film" (New Sakamoto Oil Co., Ltd.) )) and "NR film" (New Sakamoto Oil Co., Ltd.). An example of a commercially available product of a reflective polarizing film that transmits a polarized light and reflects polarized light of opposite nature, including "DBEF" (made by 3M Company in Japan by Sumitomo 3M) . Further, an example of a commercially available product of a retardation film composed of a cycloolefin-based resin includes "ART0N film" (manufactured by JSR Co., Ltd.), "Escena" (manufactured by Sekisui Chemical Co., Ltd.), and 23 322034. 201106028 "ZE0N0R film" (Japan Zeon). The polarizing plate of the present invention can be suitably used as a back side polarizing plate disposed between a liquid crystal cell and a backlight provided in a liquid crystal display device. <Liquid Crystal Panel and Liquid Crystal Display Device> Fig. 7 is a schematic cross-sectional view showing a preferred example of the liquid crystal display device of the present invention, which shows an example of a liquid crystal display device using the liquid crystal panel of the present invention. Referring to Fig. 7, a liquid crystal panel 11 of the present invention comprises a liquid crystal cell 13 and a polarizing plate 1 as a polarizing plate of the present invention laminated on the liquid crystal cell 13. The liquid crystal cell 13 and the polarizing plate 1 are adhered via the adhesive layer 18, and the surface of the polarizing film 2 opposite to the surface on which the sheet member 3 is laminated is opposed to the liquid crystal soap cell 13 (that is, 'the sheet member 3 is made' The outer surface of the liquid crystal panel 11 is formed). The liquid crystal panel of the present invention is generally applied to the liquid crystal display device 1 such that the sheet member 3 is on the side of the backlight 12 (so that the polarizing plate 1 is disposed between the liquid crystal cell 13 and the backlight 12). . At this time, in the polarizing plate 1, the sheet member 3 is laminated on the polarizing film £, and the surface of the sheet member 3 opposite to the surface having the 稜鏡 shape or the lens shape is opposed to the polarizing film 2 The face having the 稜鏡 shape or the lens shape becomes opposite to the backlight 丨2. As shown in Fig. 7, in the liquid crystal panel of the present invention, the front side of the liquid crystal cell (the side to be used when the 16-crystal display device is applied, and the side where the polarizing plate of the present invention is laminated) is also provided. The polarizing plate, (4) the polarizing plate provided on the front side of the liquid crystal cell is not particularly limited, and a suitable polarizing plate of 322034 24 201106028 can be used. For example, a polarizing plate subjected to anti-glare treatment, hard coat treatment, anti-reflection treatment, or the like can be used. Further, a polarizing plate in which a protective film or a light-compensating film made of a polyethylene terephthalate film, an acrylic film, a polypropylene film or the like is laminated on one surface of a polarizing plate may be used. In the example shown in Fig. 7, the liquid crystal panel 11 includes a polarizing plate in which the protective film 15 is adhered to both surfaces of the polarizing film 14 via the adhesive film 17 as a front side polarizing plate. The front side polarizing plate is laminated on the liquid crystal cell 13 via the adhesive layer 16. The liquid crystal cell usually includes a color filter having a matrix structure in which a square element of a square shape composed of three primary colors of r, G, and B is regularly arranged. In the liquid crystal panel of the present invention, the liquid crystal cell and the polarizing plate of the present invention can be arranged, for example, as shown in Fig. 8, the ridge line of the 薄片 shape or the lens shape of the sheet member 3 and the color filter 13a, respectively. Either side of the matrix structure becomes parallel or slightly parallel. In the prism shape shown in Fig. 2 and the lenticular lens shown in Fig. 3, the ridge line means a line formed by the apex of the protrusion (convex portion). Further, in the two-dimensional lens array shown in Figs. 4 to 6, the ridge line refers to a line obtained by connecting the apexes of the projections arranged in the vertical or horizontal directions. The color filter has any one of the matrix structures, and refers to the vertical or horizontal arrangement direction of the color pixels. Referring to Fig. 7, a liquid crystal display device 10' as a liquid crystal display device of the present invention includes a backlight 12 and a liquid crystal panel u disposed so that the sheet member 3 becomes the backlight 12 side. The liquid crystal display device of the present invention has a liquid crystal panel in which the polarizing plate of the present invention is adhered to the back side of the liquid crystal cell, so that it is thinned and has sufficient mechanical strength. When the same as 25 322034 201106028, the generation of the moiré is sufficiently suppressed. In addition, since the sheet member is disposed on the back side of the liquid crystal panel, the liquid crystal panel and the backlight system are prevented from adhering to each other, thereby achieving further improvement in visibility. In the liquid crystal display device of the present invention, a configuration other than the liquid crystal panel described above can be suitably employed in a conventional liquid crystal display device. For example, the liquid crystal display device of the present invention may further include a light diffusion plate, a light diffusion sheet, a light guide plate, and the like. As the backlight system, in addition to the backlight, a backlight system having a side light guide plate method can be applied. EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the invention is not limited to the examples. (Production Example 1: Production of Polarized Film) A polyvinyl alcohol film having an average polymerization degree of about 2,400, a degree of saponification of 99.9 mol% or more and a thickness of 75 # m was impregnated in pure water of 30 ° C, and then 3 〇°c was immersed in an aqueous solution of iodine/potassium iodide/water in a weight ratio of /2. 02/2/100. Thereafter, it was immersed in an aqueous solution of potassium bromide/folic acid/water in a weight ratio of 12/5/100 at 56.5 °C. Second, take 8. After washing with pure water, it was dried at 65 C to obtain a polarizing film in which iodine was adsorbed and adsorbed in polyvinyl alcohol. 5倍。 The extension is mainly 5% dyeing and meal processing steps, the total stretch ratio is 5.3 times. (Production Example 2: Preparation of ultraviolet curing type adhesive) Japan Epoxy resin (share) eve & "EPIKOTEYX8000" (which is a trade name of nucleating oxidized epoxy resin having about equivalent equivalent of epoxy when ... shrinking (4) 322·0§, 322034 26 201106028 Photocatalytic polymerization initiator, the trade name of "Ci5i〇2" 4. 〇g, and the product of the light sensitizer made by Japan Soda Co., Ltd. Name "CS7001" 1. 〇g, which is measured by a disposable cup of l〇〇ml, and an ultraviolet curing type adhesive is prepared by mixing and defoaming. (Production Example 3: triangular enamel sheet 1 (Prepared) A mold (m〇ld)* designed in advance so that the distance between the crucibles after forming is 5 〇//1 〇 and the apex angle is 65°, and the molten polypropylene resin is applied. Next, after heating, the mold was peeled off and immediately cooled to 60 C to obtain a triangular ruthenium sheet i made of a polypropylene resin. Any of the triangular prisms had a shape as designed. (Manufacturing Example 4: Triangle rib Production of mirror sheet 2) Temporarily cooled to 9 除了 after peeling off from the mold c was maintained at the same temperature for 5 minutes, and then cooled to i 〇 °c, and the same operation as in Production Example 3 was carried out to obtain a triangular bismuth sheet 2 composed of a polypropylene resin. (Manufacturing Example 5: Production of the triangular tantalum sheet 3) A triangle composed of a polypropylene resin was obtained in the same manner as in Production Example 3 except that it was cooled to 1 (rc) immediately after peeling from the mold.稜鏡 Sheet 3. Any one of the triangular cymbals has a shape as designed. (Manufacturing Example 6: Production of the triangular cymbal sheet 4) The distance between the ridges after the forming is 5 〇 # m and the apex angle becomes In a pre-designed mold of 65°, the following mixture is applied as an ultraviolet curable resin composition, and after smoothing the surface, the surface is superimposed on the layer composed of the ultraviolet curable resin composition. A polyethylene terephthalate film of 27 322034 201106028 is used. Secondly, ultraviolet rays having a wavelength of 320 to 39 〇ηη are irradiated so that the cumulative irradiation amount becomes 1000 mJ/cm 2 to harden the ultraviolet curable resin composition. Thereafter, a triangular tantalum sheet 4' in which a cured layer of a UV-curable resin composition having a meandering shape is laminated on a polyethylene terephthalate film is obtained by being molded from a mold. The triangular enamel has a shape as designed. <Composition of ultraviolet curable resin composition> FANCRYL FA-321M (ethylene oxide modified double-anti-A thiol acrylate manufactured by Hitachi Chemical Co., Ltd.) 45 weight And NK ester A-BPE-4 (ethylene oxide modified bisphenol a diacrylate manufactured by Shin-Nakamura Chemical Co., Ltd.) 25 parts by weight,
Sartomer 285(Sartomer公司製之丙烯酸四氫呋喃酯）3〇 重量份、 DAROCUR 1173CCIBA公司製之2-羥基-2-曱基-卜苯基丙烷 -1-酮）3重量份。 <實施例1 > (a)偏光板之製作 在製造例1所得偏光薄膜的一面上，將製造例3所得 之三角棱鏡薄片1，以其之與具有稜鏡形狀之面相反側之 面當作黏貼面，經由製造例2所得之紫外線硬化型接著劑 而予以黏貼。又，在偏光薄膜的另一面上，將三乙醯纖維 素薄膜（80 # m、Konica minolta opto公司製）經由製造例 2所得之紫外線硬化型接著劑而予以黏貼。其次，在曰本 電池（股）製之紫外線照射裝置（紫外線燈係以80W使用 28 322034 201106028 “HAL400NL” ，照射距離設為50cm)中，以線速度1.0m/ 分鐘通過1次，得到具有良好外觀的偏光板。環氧樹脂組 成物之紫外線硬化型接著劑的硬化性良好。又，以JIS K 5400記載的棋盤格法評估三角稜鏡薄片1之密著性時，相 對於形成之棋盤格數的非剝離棋盤格數是100/100，顯示 良好之密著性。在該偏光板之三乙醯纖維素薄膜之外表面 設有厚度25μιη之丙烯酸系黏著劑的層。 (b)液晶顯示裝置之製作 將上述偏光板經由丙烯酸系黏著劑層而配置在液晶 單元之背面，在液晶單元之前面配置市售之偏光板，並組 裝液晶面板。將該液晶面板與市售之光擴散板、導光板方 式之背光予以組合而製作液晶顯示裝置。以目視觀察液晶 顯示裝置之顯示時，由正面觀看會得到明亮之影像，未見 到疊紋，辨識性良好。 <實施例2> 除了使用製造例4所得之三角稜鏡薄片2以替代製造 例3所得之三角稜鏡薄片1之外，其餘與實施例1同樣操 作，製作偏光板，繼而製作液晶顯示裝置。以目視觀察液 晶顯示裝置之顯示時，由正面觀看會得到明亮之影像，未 見到疊紋.，辨識性良好。 <比較例1 > 除了使用製造例5所得之三角稜鏡薄片3以替代製造 例3所得之三角棱鏡薄片1之外，其餘與實施例1同樣操 作，製作偏光板，繼而製作液晶顯示裝置。以目視觀察液 29 322034 201106028 晶顯示裝置之顯示時，雖然由正面觀看會得到明亮之影 像，但觀察到強列的疊紋，辨識性並不良。 <比較例2 > 除了使用製造例6所得之三角棱鏡薄片4以替代製造 例3所得之三角稜鏡薄片1之外，其餘與實施例1同樣操 作，製作偏光板，繼而製作液晶顯示裝置。以目視觀察液 晶顯示裝置之顯示時，雖然由正面觀看會得到明亮之影 像，但觀察到強烈的疊紋，辨識性並不良。 將上述實施例及比較例中所使用之三角稜鏡薄片之 製造條件及内部霧度的測定結果、以及製作之液晶顯示裝 置的辨識性評估結果予以整理在表1中。三角棱鏡薄片之 内部霧度的測定方法係如下述。 <三角稜鏡薄片之内部霧度的測定> 在三角稜鏡薄片之兩面塗布甘油使兩表面平坦化 後，在該塗布面上配置三乙醯纖維素（TAC)薄膜並使其成為 光學密著，而得到由TAC薄膜/三角稜鏡薄片/TAC薄膜 所構成的積層體。使用依據JISK 7136之村上色彩技術研 究所（股）製的霧度計（Haze meter)「HM-150」型測定所得 積層體之霧度。藉由此方法所得之霧度，係由於三角棱鏡 薄片表面之凸凹已被光學性地掩沒，故相當於三角稜鏡薄 片之内部霧度。 30 322034 201106028 [表1 ] 三角稜鏡薄片 液晶顯不 裝置之辨 識性 三角棱鏡 薄片 成形法 冷卻溫度 内部霧度 實施例1 1 加壓成形 60°C 9°/〇 良 實施例2 2 加壓成形 90°C- 10°C 23°/〇 良 比較例1 3 加壓成形 10°C 1% 不良 比較例2 4 光聚合物 製程 _ 0. 5% 不良 此次所揭示之實施形態及實施例在所有特點上應皆 為例示，而並非具限制性者。本發明之範圍並非如前述之 說明，而是由專利申請範圍所示，意指在與專利申請範圍 均等之意義及範圍内包含全部之變更。 【圖式簡單說明】 第1圖表示本發明偏光板之較佳之一例的概略截面圖。 第2圖表示薄片構件之表面形狀的較佳之一例之概略斜 視圖。 第3圖表示薄片構件之表面形狀的較佳之另一例之概略 斜視圖。 第4圖表示薄片構件之表面形狀的較佳之另一例之概略 斜視·圖。 第5圖表示薄片構件之表面形狀的較佳之另一例之概略 斜視圖。 第6圖表示薄片構件之表面形狀的較佳之另一例之概略 31 322034 201106028 斜視圖。 例之概 之配置 第7圖表示本發明之液晶顯示裝置的較佳之另一 略截面圖。 第8圖表示液晶面板中的薄片構件與彩色濾光片 關係之概略圖》 【主要元件符號說明】 1 偏光板 2、14 偏光薄膜 3 薄片構件 4、6、 Π接著劑層 5 光補償薄膜或保護薄膜 10 液晶顯示裝置 11 液晶面板 12 背光 13 液晶早元 13a 16、18 彩色濾光片 黏著劑層 15 保護薄膜 32 322034Sartomer 285 (tetrahydrofuran acrylate manufactured by Sartomer Co., Ltd.) 3 parts by weight, 3 parts by weight of 2-hydroxy-2-mercapto-p-phenylpropan-1-one manufactured by DAROCUR 1173 CCIBA Co., Ltd.). <Example 1> (a) Preparation of polarizing plate On one surface of the polarizing film obtained in Production Example 1, the triangular prism sheet 1 obtained in Production Example 3 was placed on the opposite side to the surface having the 稜鏡 shape. The adhesive surface was adhered via the ultraviolet curable adhesive obtained in Production Example 2. Further, on the other surface of the polarizing film, a triethylene fluorene film (80 #m, manufactured by Konica Minolta Opto Co., Ltd.) was adhered via the ultraviolet curable adhesive obtained in Production Example 2. Next, in the ultraviolet irradiation device (UV lamp system using 28 222034 201106028 "HAL400NL", the irradiation distance is set to 50 cm), the laser light is used at a linear velocity of 1.0 m/min. Appearance polarizer. The ultraviolet curable adhesive of the epoxy resin composition has good hardenability. Further, when the adhesion of the triangular tantalum sheet 1 is evaluated by the checkerboard method described in JIS K 5400, the number of non-peeling checkerboards based on the number of formed checkerboards is 100/100, and good adhesion is exhibited. On the outer surface of the triacetone cellulose film of the polarizing plate, a layer of an acrylic adhesive having a thickness of 25 μm was provided. (b) Production of liquid crystal display device The polarizing plate was placed on the back surface of the liquid crystal cell via an acrylic adhesive layer, and a commercially available polarizing plate was placed in front of the liquid crystal cell to assemble a liquid crystal panel. A liquid crystal display device was produced by combining the liquid crystal panel with a commercially available light diffusing plate and a backlight of a light guide plate. When the display of the liquid crystal display device was visually observed, a bright image was obtained from the front view, and no dullness was observed, and the visibility was good. <Example 2> A polarizing plate was produced in the same manner as in Example 1 except that the triangular tantalum sheet 2 obtained in Production Example 4 was used instead of the triangular tantalum sheet 1 obtained in Production Example 3, and then a liquid crystal display device was produced. . When the display of the liquid crystal display device was visually observed, a bright image was obtained from the front view, and no dullness was observed. The visibility was good. <Comparative Example 1> A polarizing plate was produced in the same manner as in Example 1 except that the triangular prism sheet 3 obtained in Production Example 5 was used instead of the triangular prism sheet 1 obtained in Production Example 3, and then a liquid crystal display device was produced. . Visual observation liquid 29 322034 201106028 When the display of the crystal display device is displayed, although a bright image is obtained from the front, a strong column is observed, and the visibility is poor. <Comparative Example 2> A polarizing plate was produced in the same manner as in Example 1 except that the triangular prism sheet 4 obtained in Production Example 6 was used instead of the triangular prism sheet 1 obtained in Production Example 3, and then a liquid crystal display device was produced. . When the display of the liquid crystal display device was visually observed, a bright image was observed from the front, but strong lamination was observed, and the visibility was poor. Table 1 shows the results of the measurement of the production conditions and internal haze of the triangular tantalum sheet used in the above examples and comparative examples, and the results of the visibility evaluation of the produced liquid crystal display device. The method of measuring the internal haze of the triangular prism sheet is as follows. <Measurement of internal haze of triangular tantalum sheet> After glycerin was applied to both surfaces of the triangular tantalum sheet to planarize both surfaces, a triacetyl cellulose (TAC) film was placed on the coated surface to make it optical. The laminate was formed to obtain a laminate composed of a TAC film/triangle sheet/TAC film. The haze of the obtained laminate was measured using a Haze meter "HM-150" type manufactured by Murakami Color Research Laboratory Co., Ltd. of JISK 7136. The haze obtained by this method is equivalent to the internal haze of the triangular tantalum sheet since the convex and concave surfaces on the surface of the triangular prism sheet have been optically masked. 30 322034 201106028 [Table 1] Identification of triangular triangular liquid crystal display device Triangular prism sheet forming method Cooling temperature internal haze Example 1 1 Press forming 60 ° C 9 ° / 实施 Example 2 2 Press forming 90 ° C - 10 ° C 23 ° / 〇 良 Comparative Example 1 3 Pressure forming 10 ° C 1% Poor Comparative Example 2 4 Photopolymer process _ 0. 5% Bad The embodiments and examples disclosed herein All features are to be construed as illustrative and not restrictive. The scope of the present invention is defined by the scope of the patent application, and is intended to include all modifications within the meaning and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a preferred example of a polarizing plate of the present invention. Fig. 2 is a schematic perspective view showing a preferred example of the surface shape of the sheet member. Fig. 3 is a schematic perspective view showing another preferred example of the surface shape of the sheet member. Fig. 4 is a schematic perspective view showing another preferred example of the surface shape of the sheet member. Fig. 5 is a schematic perspective view showing another preferred example of the surface shape of the sheet member. Fig. 6 is a view showing a preferred example of the surface shape of the sheet member 31 322034 201106028 Oblique view. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 7 is a view showing another preferred sectional view of a liquid crystal display device of the present invention. Fig. 8 is a view showing the relationship between the sheet member and the color filter in the liquid crystal panel. [Description of main components] 1 polarizing plate 2, 14 polarizing film 3 sheet member 4, 6, adhesive layer 5, light compensation film or Protective film 10 Liquid crystal display device 11 Liquid crystal panel 12 Backlight 13 Liquid crystal early 13a 16, 18 Color filter adhesive layer 15 Protective film 32 322034