TW200923506A - A set of polarizer, and a liquid crystal panel and a liquid crystal display apparatus used thereof - Google Patents

A set of polarizer, and a liquid crystal panel and a liquid crystal display apparatus used thereof Download PDF

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Publication number
TW200923506A
TW200923506A TW097138846A TW97138846A TW200923506A TW 200923506 A TW200923506 A TW 200923506A TW 097138846 A TW097138846 A TW 097138846A TW 97138846 A TW97138846 A TW 97138846A TW 200923506 A TW200923506 A TW 200923506A
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Taiwan
Prior art keywords
film
liquid crystal
polarizing plate
polarizing
resin
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TW097138846A
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Chinese (zh)
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TWI453503B (en
Inventor
Narutoshi Hayashi
Hirohiko Yakabe
Atsushi Higo
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Sumitomo Chemical Co
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133502—Antiglare, refractive index matching layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

This invention provides a set of polarizer for a liquid crystal panel, the set of polarizer being composed of a first polarizer 20 and a second polarizer 30, the first polarizer 20 having a first polarizing film 21 made of a polyvinylalcohol resin and a film 24 laminated on one side of the first polarizing film 21, the film 24 being made of an extended polyethylenetelephthalate; and the second polarizer 30 having a second polarizing film 31 made of a polyvinylalcohol resin, and an antiglare, protective film 34 laminated on one side of the second polarizing film 31, the antiglare, protective film 34 having a haze value from 15% or more to 45% or less. This invention also provides a liquid crystal panel and a liquid crystal display apparatus using this set of polarizer.

Description

200923506 六、發明說明： 【發明所屬之技術領域】 本發明係有關於在由聚乙烯醇系樹脂所組成之偏光薄 膜之單面積層有經延伸之聚對酞酸乙二酯薄膜的偏光板、 與在由聚乙烯醇系樹脂組成之偏光薄膜之單面積層有霧度 (haze)值在15%以上45%以下之範圍且具有防炫爍性之 保護膜的偏光板之套件（set);以及使用該偏光板套件之液 晶面板及液晶顯不裝置。 【先前技術】 偏光板係做為液晶顯不裝置之主要構件的液晶面板之 構成零件，通常其構成係呈現如：在吸附定向有兩色性色 素之由聚乙稀醇系樹脂所組成之偏光薄膜之單面或兩面， 隔著接著劑層而積層有保護膜（例如：三乙醯纖維素所代表 之乙酸纖維素系之透明樹脂薄膜）。將此偏光板依需要而隔 著其他光學薄膜，並使用黏著劑以貼合於液晶單元，藉此 即可得到液晶面板。 液晶顯不裝置係做為液晶電視、液晶榮幕、個人電腦 等薄型之顯示晝面，其用途正急速擴大。特別是液晶電視 之市場係顯著擴大，此外，對低成本化之要求也非常強烈。 液晶電視用之偏光板以往一直係使用如下述者：於由聚乙 烯醇系樹脂薄膜所組成之偏光薄膜之兩面使用水系接著劑 積層三乙醯纖維素薄膜（TAC薄膜），並於該偏光板之單面 上經由黏著劑而貼附相位差膜者。就積層於偏光板之相位 差膜而言，一般係使用聚碳酸酯系樹脂薄膜之延伸加工物 4 320682 200923506 或％烯烴系樹脂薄臈之延伸加工物等’但在液晶電視用途 方面’則大多使用由在高溫下之相位差不均為非常少的環 稀烴系樹脂薄膜所組成之相位差膜。 、 ；偏光板與由延伸環烯烴系樹脂薄膜所組成之相位 貼合物’在提高生產性及降低製品成本之目的上， "、降低構成零件之點數和簡化製造過程。例如：在專 文 口 ^ 4)中，揭示如特開平8-43812號公報（特別是參照實施例 ，並於其相t下之構成··於偏光薄膜之單面積層TAC薄膜， 之環稀煙系著TAC薄膜而直接積層具有相位差機能 【發明内容】牛冰片烯（n〇rb〇rnene)系）樹脂薄膜者。 (發明欲解決㈣⑷ 此外，在士 + 視用途等，將^面液晶電視用途方面，例如做為壁掛電 日漸顯著。心t顯示裝置更加薄型化及輕量化之需求係 成為課題。'’有關液晶面板及其構成零件，下述各點 (1)因應液曰 (9Λ m - 9面板之薄型大晝面化，必須強彳 ⑵因應液晶h ηπ 强化面板之強度。 必須防士 母丨卞而要薄化。 ^ 起因於液晶面板與背面之背井、、馬 窄，液Q 无/原的間隙#狹 曰日面板與背光源系統接觸所 、 =和牛_(Ne_ring)。成之固形狀之不 三解决上述課題，而考慮將在薄膜 1面優良之延伸聚對酞酸乙二酯薄膜做、性強度及 護膜使用。〜 膜做為偏光板之保 〜而，延伸聚對酞酸乙二酯薄係此反之仟 、你自配置於液 320682 5 200923506 晶顯示裝置中而觀看影像時，因其相位差之影響，在從斜 向觀看時，其色不均（也稱為干涉不均、虹不均）之情形明 顯，而具有辨識性差之問題。 (解決課題的手段） 本發明人等為了解決如此之課題而致力研究後結果發 現，經由使用在由聚乙烯醇系樹脂所組成之偏光薄膜之單 面積層有經延伸之聚對酞酸乙二酯薄膜的偏光板、與在由 聚乙烯醇系樹脂所組成之偏光薄膜之單面積層有霧度值在 15%以上45%以下之範圍且具有防炫爍性之保護膜的偏光 板之組合，做為液晶面板之構成零件之2個偏光板，即可 得到在從斜向觀察液晶顯示裝置時之色不均受抑制且辨識 性優良之液晶顯示裝置，遂完成本發明。 換言之，根據本發明，可提供一種偏光板套件，其係 由第1偏光板及第2偏光板所組成之液晶面板用偏光板套 件，其中，該第1偏光板係具有由聚乙烯醇系樹脂所組成 之第1偏光薄膜、與積層於該第1偏光薄膜之單面且經延 伸之由聚對酞酸乙二酯所組成之薄膜，該第2偏光板係具 有由聚乙烯醇系樹脂所組成之第2偏光薄膜、與積層於該 第2偏光薄膜之單面且霧度值在15%以上45%以下之範圍 之防炫爍性保護膜。 在此，第1偏光板可復具有：積層於第1偏光薄膜之 與積層有由聚對酞酸乙二酯所組成之薄膜之面相反側之面 上的光學補償薄膜。第2偏光板可復具有：積層於第2偏 光薄膜之與積層有防炫爍性保護膜之面相反側之面上的光 6 320682 200923506 學補償薄膜。 此外，根據本發明，可提供一種液晶面板，其係由依 序配置上述第1偏光板、液晶單元、及上述第2偏光板而 成。在本發明之液晶面板中，第1偏光板係配置成：使第 1偏光薄膜之與積層有由聚對酞酸乙二酯所組成之薄膜之 面相反側之面係與液晶單元成為相對向；且第2偏光板係 配置成：使第2偏光薄膜之與積層有防炫爍性保護膜之面 相反侧之面係與液晶單元成為相對向。 並且，根據本發明，可提供一種液晶顯示裝置，其係 依序具備背光源、光擴散板、及液晶面板，其中，該液晶 面板係上述本發明之液晶面板。在本發明之液晶顯示裝置 中，該液晶面板係配置成：使由聚對酞酸乙二酯所組成之 薄膜係與光擴散板成為相對向。 (發明的效果） 依本發明，若藉由特定之偏光板套件（組合），即可達 成因使用延伸聚對酞酸乙二酯薄膜而提高液晶面板之機械 性強度以及薄化，並同時可改善起因於延伸聚對酞酸乙二 酯薄膜所具有之相位差所造成之在從斜向觀察時之色不 均。如此之偏光板套件以及使用該偏光板套件之液晶面板 可適當應用於大晝面液晶電視用液晶顯示裝置，特別是可 適當應用於可壁掛之液晶電視用液晶顯示裝置。 【實施方式】 <偏光板> 本發明之偏光板套件係由第1偏光板及第2偏光板2 7 320682 200923506 個偏光板所組成，此等係做為液晶面板之構成零件使用 者。液晶面板可經由於液晶單元之一面積層第1偏光板， 並於另一面積層第2偏光板而製作。第1偏光板係做為液 晶面板之为面側偏光板使用，弟2偏光板係做為液晶面板 之前面侧偏光板使用。在此，所謂「背面側偏光板」係意 指在將液晶面板裝載於液晶顯示裝置時，位於背光源側之 偏光板；所謂「前面側偏光板」係意指在將液晶面板裝載 於液晶顯示裝置時，位於觀看側之偏光板。以下，詳細說 明關於各偏光板。 (第1偏光板） 第1偏光板係做為液晶面板之背面側偏光板使用者， 其係藉由在由聚乙烯醇系樹脂所組成之第1偏光薄膜之單 面積層聚對酞酸乙二酯薄膜而製作。具體而言，第1偏光 薄膜係藉由使二色性色素吸附定向於經單軸延伸之聚乙烯 醇系樹脂薄膜而成者。 聚乙烯醇系樹脂可使用將聚乙酸乙烯酯系樹脂予以皂 化（saponification)而成者。聚乙酸乙烯酯系樹脂除了乙 酸乙烯酯之單一聚合物之聚乙酸乙烯酯以外，其餘可例示 如：與可與乙酸乙烯酯共聚合之其他單體的共聚物等。 可與乙酸乙烯酯共聚合之其他單體可舉例如：不飽和 羧酸類、烯烴類、乙烯醚類、不飽和磺酸類、具有銨基之 丙烯醯胺類等。 聚乙烯醇系樹脂之皂化度通常係85至100莫耳％左 右，且以在98莫耳％以上為佳。此聚乙烯醇系樹脂可再經 8 320682 200923506 改性，也可使用例如：铖 ! f〇rmal)或聚乙乙埽甲縮駿 系樹脂之聚合度通常係1{) 、。此外，聚乙稀醇 5000左右為佳。 主1ϋ〇〇〇左右，且以15〇〇至 、」字如此之聚乙烯醇系樹脂製 偏光薄膜之原片薄臈使 、仔者係做為第玉 方法並無特別限定，可依已醇系樹赌製成 薄膜之 原片薄膜之膜厚無特別限定，°例:方^製膜。聚乙稀醇系 丄1偏光薄膜通常係經由下：步左右。 乙埽醇緒脂軸進行單 二mf如此之聚 系樹脂薄膜以二色性色=延伸之步驟、經由將聚乙稀醇 之步驟、將吸附有 :木色而使該二色性色素吸附 酸水溶液處理之 f之聚乙稀醇系樹月旨薄臈以硼 水洗之步驟。 及在藉由此顯水溶液處理後予以 行醇系樹脂薄膜之單轴延伸可在以二色性色素進 進;亍。C染色同時進行，或者也可在染色後 爾hit 進行單轴延伸時，此單軸延伸可在進行 乂处則仃，也可在進行硼酸處理時進行。當然，也 =此等複數個階段進行單_伸。在進行單條伸時， 周速不同之輥間進行單轴延伸，也可使用熱輕進行單 伸延伸:此外’單轴延伸可為在大氣中進行延伸之乾式延 、^可為在使用溶劑使聚乙烯醇系樹脂薄膜膨脹之狀態 L行延伸之濕式延伸。延伸倍率通常係3至8倍左右。 將承乙烯醇系樹脂薄膜以二色性色素進行染色之方法 9 320682 200923506 可舉例如：將聚乙烯醇系樹脂薄膜浸潰於含有二色性色素 之水溶液中之方法。就二色性色素之具體例而言可使用破 或二色性染料。再者，聚乙烯醇系樹脂薄膜以在染色處理 前預先施予浸潰於水中之處理為佳。 當使用碘做為二色性色素時，通常採用將聚乙烯醇系 樹脂薄膜浸潰於含有碘及碘化鉀之水溶液中而進行染色之 方法。此水溶液中之碘之含量通常係以水每100重量份計 為0. 01至1重量份左右，碘化鉀之含量通常係以水每100 重量份計為0. 5至20重量份左右。染色所使用之水溶液之 溫度通常係20至40°C左右，此外，浸潰於此水溶液中之 時間（染色時間）通常係20至1800秒左右。 另一方面，當使用二色性染料做為二色性色素時，通 常採用將聚乙烯醇系樹脂薄膜浸潰於含有水溶性二色性染 料之水溶液中而進行染色之方法。此水溶液中之二色性染 料之含量通常係以水每100重量份計為lxl〇-4至10重量份 左右，且以1χ1(Γ3至1重量份左右為佳，此外，也可為例 如在lxl(T2重量份左右以下。此水溶液也可含有硫酸鈉等 無機鹽做為染色助劑。染色所使用之二色性染料水溶液之 溫度通常係20至80°C左右，此外，浸潰於此水溶液中之 時間（染色時間）通常係10至1800秒左右。 在藉由二色性色素染色後之硼酸處理，係可經由將經 染色之聚乙烯醇系樹脂薄膜浸潰於含有硼酸之水溶液中而 進行。含有硼酸之水溶液中之硼酸之量係以水每100重量 份計，通常為2至15重量份左右，且以5至12重量份左 10 320682 200923506 右為佳。當使用碘做為二色性色素時，此含有硼酸之水溶 液以含有碘化鉀為佳。含有硼酸之水溶液中之碘化鉀之量 係以水每100重量份計，通常為0. 1至15重量份左右，且 以5至12重量份左右為佳。浸潰於含有硼酸之水溶液中之 時間通常係60至1200秒左右，且以150至600秒左右為 佳、以200至400秒左右更佳。含有硼酸之水溶液之溫度 通常在50°C以上、且以50至85°C為佳、以60至80°C較 佳。 在進行硼酸處理後，通常將聚乙烯醇系樹脂薄膜進行 水洗處理。水洗處理係可經由例如將經硼酸處理之聚乙烯 醇系樹脂薄膜浸潰於水中而進行。進行水洗處理時之水之 溫度通常係5至40°C左右，浸潰時間通常係1至120秒左 右。在水洗後施予乾燥處理，即可得到第1偏光薄膜。乾 燥處理可使用熱風乾燥機或遠紅外線加熱器進行。乾燥處 理之溫度通常係30至100°C左右，且以50至80°C為佳。 乾燥處理之時間通常係60至600秒左右，且以120至600 秒為佳。 如此，對聚乙烯醇系樹脂薄膜施予單轴延伸處理、藉 由二色性色素進行之染色處理、及硼酸處理，即可得到第 1偏光薄膜。第1偏光薄膜之厚度可令其為5至40/zm左 右。 本發明之第1偏光板係藉由在上述由聚乙烯醇系樹脂 所組成之第1偏光薄膜之單面積層經延伸之聚對酞酸乙二 酯薄膜而製作。經延伸之聚對酞酸乙二酯薄膜係機械性性 11 320682 200923506 質、财溶劑性、耐到性、成本等優良之薄膜，且將如此之 聚對為保制使用後所得之偏光板係機 械性強又4優良，並且可謀求厚度之降低。在此，在本發 明中:所謂「構成聚對_乙二I㈣膜之聚對㈣乙二 醋」係意指重複單元之8〇莫耳％卩上為由對駄酸乙二醋所 構成之樹脂’且也可含有源自其他共聚合成分之構成單 兀。其他共聚合成分可舉例如：㈣酸U_氧基乙氧 基^息香酉夂、4, 4 -二綾基二苯基、4, 4, _二羧基二苯甲酮、 雙（4-羧基苯基）乙烷、己二酸、癸二酸、5—磺基間酞酸鈉、 1,4-二羧基二環己烷等二羧酸成分；丙二醇、丁二醇、新 戊二醇、二乙二醇、環己二醇、雙酚A之環氧乙烷加成物、 聚乙二醇、聚丙二醇、聚丁二醇 (polytetramethyleneglycol)等二醇成分。此等二羧酸成 分和二醇成分可依需要而組合2種以上使用。此外，也订 與上述二羧酸成分和二醇成分一同併用對-氧基安息香酸 等氧基叛酸。做為其他共聚合成分，也可使用含有少量的 醯胺鍵、胺酯鍵、醚鍵、礙酸酯鍵等之二羧酸成分及/或 二醇成分。 聚對献酸乙二酯之製造法可適用如下述等任意製造 法：使對酞酸與乙二醇（以及依t要再與其他二缓酸及/或 其他二醇）直接反應之所謂直接聚合法、使對酞酸之二甲酯 與乙二醇（以及依需要再與其他二羧酸之二甲醋及/或其 他二醇）進行酯交換反應之所謂§旨交換反應法。此外’聚對 酞酸乙二酯也可依需要而含有巳周知之添加劑。已周知之 12 320682 200923506 :加:::例如:濁滑齊卜抗結塊劑、熱安定劑、抗氧化 、耐光劑、耐衝擊㈣ =為板，需要透㈣，‘ 經由將上述原料樹脂予以成形為薄臈狀，並施予延伸 处理即可製作經延伸之聚對駄酸乙二醋薄膜。延伸可舉 :::朝MD:向(運送方向)㈣方向(與運送方向垂直之 。延伸之單軸延伸、朝MD方向與TD方向 伸、朝㈣方向或TD方向之方向延伸之斜向二 械性種延伸中’皆可經由進行延伸處理，而得到機 於在將本發明之偏光板設置於液 = 不易觀察到干涉不均之傾向，故佳。 扳才有 音，經，軸延伸之聚對駄酸乙二酉旨薄膜之製作方法係任 將』：：別限疋’可舉例如：將上述原料樹脂熔融後， 以狀並經成形之無定向薄膜在玻璃轉移溫度中 ㈣νΓ 拉巾讀（tenter)進行橫向延伸（朝TD方向 至130^ 知予熱固定處理之方法。此時’延伸溫度係80 ，且以90至120°C為佳，延伸倍率係2.5至6倍， ㈣膜ϋ·θ5倍為佳。若延輕輕，财料駄酸乙二 時^ 充分的透明性之傾向。當進行雙軸延伸 破璃㈣成薄片狀並經成形之無定向薄膜在 夕’皿又以上之溫度中以拉幅機進行縱向延伸（朝md °延伸）’接著再進行橫向延伸（朝扣方向延伸）之方 320682 13 200923506 法；和同時朝縱向及橫向延伸之方法等。 此外，為了減低定向主轴之偏斜，在進行橫向延伸後 — 且在進行熱固定處理前，以將聚對酞酸乙二酯薄膜朝長度 方向（longitudinal direction)進行鬆他處理為佳。進行 鬆弛處理時之溫度係90至200°C，且以120至180°C為佳。 鬆弛量係依橫向延伸條件而異，以將鬆弛量及鬆弛處理時 之溫度設定成使鬆弛處理後之聚對酞酸乙二酯薄膜在150 它時之熱收縮率達2%以下為佳。 r' - 熱固定處理溫度可設定在180至250°C，且以200至 245°C為佳。在進行熱固定處理時，首先以定長進行熱固定 處理後，為了減低定向主軸之偏斜並提高耐熱性等強度， 以再進行寬度方向（width direction)之鬆弛處理為佳。此 時之鬆弛量以調整成使鬆弛處理後之聚對酞酸乙二酯薄膜 在150 C時之熱收縮率違1至為佳、以達2至5%較 佳。在本發明中所使用之延伸聚對酞酸乙二酯薄膜之定向 L主軸之偏斜之最大值係在10度以下，且以在8度以下為 佳、以在5度以下更佳。若定向主軸之偏斜最大值大於1〇 度，則在貼合於液晶顯示晝面時有顯色不良情形會變大之 傾向再者’延伸聚對駄酸乙二醋薄膜之「定向主軸之偏 斜之最大值」可藉由例如大塚電子股份有限公司製之相位 差膜檢查裝置RETS系統而進行測定。 I伸聚對酞酸乙二酯薄膜之厚度dpET係以令其為2〇至 6〇_左右為佳、以令其為％至5()_較佳。若延伸聚對 醜酸乙二s旨薄膜之厚度dpET未達2〇p，則有變得難以處理 320682 14 200923506 之傾向，若厚度（Ipet超過6 0 // m，則有薄化之優點變少之傾 向。此外，延伸聚對酜酸乙二酯薄膜之面内相位差值Rpet 係以在lOOOnm以上為佳、以在3000nm以上較佳。若面内 相位差值未達lOOOnm，則有從正面之顯色會變顯眼之傾 向。再者，延伸聚對酞酸乙二酯薄膜之面内相位差值Rpet 係如下述式（1)所示：[Technical Field] The present invention relates to a polarizing plate having a polyethylene terephthalate film having a single-layered layer of a polarizing film composed of a polyvinyl alcohol-based resin, a set of polarizing plates having a protective film having a haze value of 15% or more and 45% or less in a single-layer layer of a polarizing film composed of a polyvinyl alcohol-based resin and having an anti-glare property; And a liquid crystal panel and a liquid crystal display device using the polarizing plate kit. [Prior Art] A polarizing plate is a component of a liquid crystal panel which is a main component of a liquid crystal display device, and generally has a structure such as a polarized light composed of a polyethylene resin in which a two-color pigment is adsorbed and oriented. On one or both sides of the film, a protective film (for example, a cellulose acetate-based transparent resin film represented by triacetonitrile cellulose) is laminated via an adhesive layer. The polarizing plate is attached to the other optical film as needed, and is bonded to the liquid crystal cell by using an adhesive, whereby the liquid crystal panel can be obtained. The LCD display device is used as a thin display for LCD TVs, LCD screens, and personal computers, and its use is rapidly expanding. In particular, the market for LCD TVs has expanded significantly, and the requirements for cost reduction have been very strong. A polarizing plate for a liquid crystal television has been conventionally used in which a water-based adhesive film is laminated on both sides of a polarizing film composed of a polyvinyl alcohol-based resin film, and a triacetyl cellulose film (TAC film) is laminated on the polarizing plate. A person who attaches a retardation film via an adhesive on one side. In the case of a retardation film laminated on a polarizing plate, generally, a stretched product of a polycarbonate resin film 4 320682 200923506 or a stretched product of a olefin resin thin film is used, but in the case of liquid crystal television use, A retardation film composed of a ring-diffuse-type resin film having a very small phase difference at a high temperature is used. The phase-bonding layer composed of a polarizing plate and a stretched olefin-based resin film improves the productivity and reduces the cost of the product, reduces the number of parts constituting the part, and simplifies the manufacturing process. For example, in the special document port 4), the disclosure of Japanese Laid-Open Patent Publication No. Hei 8-43812 (specifically, the reference to the embodiment and the composition of the phase t) is applied to a single-area layer TAC film of a polarizing film. A TAC film is used to directly laminate a resin film having a phase difference function [inventive content] (N〇rb〇rnene). (4) (4) In addition, in the use of the LCD TV, for example, the use of the LCD TV has become increasingly important. The demand for thinner and lighter weight of the display device has become a problem. The panel and its components, the following points (1) must be strong (彳) in accordance with the thinness of the 9Λ m - 9 panel, and must be strong (2) to strengthen the strength of the panel in response to the liquid crystal h ηπ. Thinning. ^ Caused by the back panel of the LCD panel and the back, the horse is narrow, the liquid Q is not/the original gap #The narrow day panel is in contact with the backlight system, = and the cow _ (Ne_ring). 3. To solve the above problems, consider using a polyethylene terephthalate film which is excellent in the surface of the film 1 to be used for the strength and the film. ~ The film is used as a polarizing plate, and the polyethylene terephthalate is extended. If the ester is thin, if you look at the image in the liquid crystal display device, the color difference will be uneven when viewed from the oblique direction (also called uneven interference, when you view the image in the crystal display device 320682 5 200923506). The situation of rainbow unevenness is obvious, but has In order to solve such a problem, the inventors of the present invention have found that the single-layer layer of the polarizing film composed of the polyvinyl alcohol-based resin has an extended polycondensation. A protective film having a haze value for a polyethylene terephthalate film and a single-layer layer of a polarizing film composed of a polyvinyl alcohol-based resin having a haze value of 15% or more and 45% or less and having antifoaming property A combination of polarizing plates and two polarizing plates which are components of a liquid crystal panel, thereby obtaining a liquid crystal display device in which color unevenness is suppressed and visibility is excellent when the liquid crystal display device is viewed obliquely, and the present invention is completed. In other words, according to the present invention, there is provided a polarizing plate kit which is a polarizing plate kit for a liquid crystal panel comprising a first polarizing plate and a second polarizing plate, wherein the first polarizing plate has a polyvinyl alcohol type. a first polarizing film composed of a resin and a film composed of polyethylene terephthalate extending over one side of the first polarizing film, the second polarizing plate having polyethylene a second polarizing film composed of a resin and an anti-glare protective film laminated on one surface of the second polarizing film and having a haze value of 15% or more and 45% or less. Here, the first polarizing plate may be used. The optical compensation film is laminated on the surface of the first polarizing film opposite to the surface on which the film composed of polyethylene terephthalate is laminated. The second polarizing plate may have a layered on the second polarizing film. a light-receiving film on the surface opposite to the surface on which the anti-glare protective film is laminated. Further, according to the present invention, a liquid crystal panel in which the first polarizing plate is disposed, In the liquid crystal panel of the present invention, the first polarizing plate is disposed such that a film composed of polyethylene terephthalate is laminated on the first polarizing film. The surface on the opposite side of the surface is opposed to the liquid crystal cell, and the second polarizing plate is disposed such that the surface of the second polarizing film opposite to the surface on which the anti-glare protective film is laminated is opposed to the liquid crystal cell. . Further, according to the present invention, there is provided a liquid crystal display device comprising a backlight, a light diffusing plate, and a liquid crystal panel, wherein the liquid crystal panel is the liquid crystal panel of the present invention. In the liquid crystal display device of the present invention, the liquid crystal panel is disposed such that a film system composed of polyethylene terephthalate is opposed to the light diffusion plate. (Effect of the Invention) According to the present invention, by using a specific polarizing plate kit (combination), it is possible to improve the mechanical strength and thinning of the liquid crystal panel by using the extended polyethylene terephthalate film, and at the same time The color unevenness caused by the phase difference of the extended polyethylene terephthalate film is observed when viewed from an oblique direction. Such a polarizing plate kit and a liquid crystal panel using the polarizing plate kit can be suitably applied to a liquid crystal display device for a large-surface liquid crystal television, and can be suitably applied to a liquid crystal display device for a wall-mounted liquid crystal television. [Embodiment] <Polarizing Plate> The polarizing plate kit of the present invention is composed of a first polarizing plate and a second polarizing plate 2 720 682 200923506 polarizing plates, and these are used as components of a liquid crystal panel. The liquid crystal panel can be produced by passing through the first polarizing plate of one of the liquid crystal cells and the second polarizing plate of the other area. The first polarizing plate is used as a liquid crystal panel as a surface side polarizing plate, and the second polarizing plate is used as a front side polarizing plate of a liquid crystal panel. Here, the "back side polarizing plate" means a polarizing plate located on the backlight side when the liquid crystal panel is mounted on the liquid crystal display device; the "front side polarizing plate" means that the liquid crystal panel is mounted on the liquid crystal display. When the device is installed, it is located on the viewing side of the polarizing plate. Hereinafter, each polarizing plate will be described in detail. (First Polarizing Plate) The first polarizing plate is used as a user of the back side polarizing plate of the liquid crystal panel, which is formed by a single-layer poly-p-acid in a first polarizing film composed of a polyvinyl alcohol-based resin. Made from a diester film. Specifically, the first polarizing film is formed by orienting a dichroic dye to a uniaxially stretched polyvinyl alcohol resin film. As the polyvinyl alcohol-based resin, a saponification of a polyvinyl acetate-based resin can be used. The polyvinyl acetate-based resin may be, for example, a copolymer of another monomer copolymerizable with vinyl acetate, in addition to polyvinyl acetate of a single polymer of vinyl acetate. Other monomers which can be copolymerized with vinyl acetate include, for example, unsaturated carboxylic acids, olefins, vinyl ethers, unsaturated sulfonic acids, acrylamides having an ammonium group, and the like. The degree of saponification of the polyvinyl alcohol-based resin is usually from 85 to 100 mol%, and preferably 98 mol% or more. The polyvinyl alcohol-based resin may be modified by 8 320682 200923506, or may be, for example, 铖 ! f〇rmal) or the polymerization degree of the polyethylene methacrylate resin is usually 1{). In addition, about 300 acetonitrile is preferred. The main film of the polarizing film made of a polyvinyl alcohol-based resin having a size of about 15 inches is used, and the method of using the polarizing film of the polyvinyl alcohol-based resin is not particularly limited. The thickness of the film of the original film which is made into a film is not particularly limited. For example, the film is formed by square film. Polyethylene glycol 丄1 polarizing film is usually passed through the next step. The acetol backbone is used to carry out the dichroic dye film by using a dichroic color=extension step, a step of adsorbing the polychromatic alcohol, and adsorbing the dichroic dye by a step of stretching the polyethylene resin. The aqueous solution treated with the polyethylene glycol is a step of washing with boron water. And the uniaxial stretching of the alcohol resin film after the treatment with the aqueous solution can be carried out by using a dichroic dye; C dyeing is carried out at the same time, or when uniaxial stretching is performed after dyeing, the uniaxial stretching can be carried out at the crucible or at the time of boric acid treatment. Of course, also = a number of stages to carry out a single extension. In the case of a single extension, the uniaxial extension is carried out between rolls with different peripheral speeds, and the single extension can also be carried out using heat and light: in addition, the 'uniaxial extension can be a dry extension in the atmosphere, and can be made by using a solvent. The state in which the polyvinyl alcohol-based resin film is expanded is extended by a wet extension of L rows. The stretching ratio is usually about 3 to 8 times. A method of dyeing a vinylidene-based resin film by a dichroic dye 9 320682 200923506 A method of immersing a polyvinyl alcohol-based resin film in an aqueous solution containing a dichroic dye, for example. As a specific example of the dichroic dye, a broken or dichroic dye can be used. Further, the polyvinyl alcohol-based resin film is preferably subjected to a treatment of impregnation in water before the dyeing treatment. When iodine is used as the dichroic dye, a method of dyeing a polyvinyl alcohol-based resin film in an aqueous solution containing iodine and potassium iodide is usually employed. 5至20重量份左右。 The content of the iodine is usually from about 0.5 to about 1 part by weight, and the amount of potassium iodide is usually from 0.5 to 20 parts by weight per 100 parts by weight of water. The temperature of the aqueous solution used for dyeing is usually about 20 to 40 ° C, and the time (dyeing time) of impregnation in the aqueous solution is usually about 20 to 1800 seconds. On the other hand, when a dichroic dye is used as the dichroic dye, a method of dyeing a polyvinyl alcohol-based resin film in an aqueous solution containing a water-soluble dichroic dye is usually used. The content of the dichroic dye in the aqueous solution is usually from about 1 to about 10 to about 10 parts by weight per 100 parts by weight of water, and preferably from about 1 to about 1 part by weight, and may be, for example, Lxl (about T2 parts by weight or less. The aqueous solution may also contain an inorganic salt such as sodium sulfate as a dyeing assistant. The temperature of the aqueous solution of the dichroic dye used for dyeing is usually about 20 to 80 ° C, and further, it is impregnated here. The time (dyeing time) in the aqueous solution is usually about 10 to 1800 seconds. The boric acid treatment after dyeing with the dichroic dye can be carried out by dipping the dyed polyvinyl alcohol resin film into an aqueous solution containing boric acid. The amount of boric acid in the aqueous solution containing boric acid is usually about 2 to 15 parts by weight per 100 parts by weight of water, and preferably from 5 to 12 parts by weight to the left of 10,320,682 and 200923506. When iodine is used as In the case of a dichroic dye, the aqueous solution containing boric acid is preferably contained in the aqueous solution containing potassium iodide. The amount of potassium iodide in the aqueous solution containing boric acid is usually from 0.1 to 15 parts by weight, and from 5 to 1 part by weight per 100 parts by weight of water. 12 parts by weight left Preferably, the time of impregnation in the aqueous solution containing boric acid is usually about 60 to 1200 seconds, preferably about 150 to 600 seconds, more preferably about 200 to 400 seconds, and the temperature of the aqueous solution containing boric acid is usually 50°. Preferably, C is 50 to 85 ° C, preferably 60 to 80 ° C. After the boric acid treatment, the polyvinyl alcohol resin film is usually subjected to a water washing treatment, and the water washing treatment can be treated, for example, with boric acid. The polyvinyl alcohol-based resin film is impregnated in water, and the temperature of the water in the water washing treatment is usually about 5 to 40 ° C, and the impregnation time is usually about 1 to 120 seconds. After washing with water, it is dried. The first polarizing film can be obtained. The drying treatment can be carried out using a hot air dryer or a far infrared heater. The temperature of the drying treatment is usually about 30 to 100 ° C, and preferably 50 to 80 ° C. The drying time is usually It is about 60 to 600 seconds, and preferably 120 to 600 seconds. Thus, the polyvinyl alcohol-based resin film is subjected to uniaxial stretching treatment, dyeing treatment by dichroic dye, and boric acid treatment. First polarizing thin The thickness of the first polarizing film may be about 5 to 40/zm. The first polarizing plate of the present invention is extended by a single-layer layer of the first polarizing film composed of the polyvinyl alcohol-based resin. Polyethylene terephthalate film is produced. The extended polyethylene terephthalate film is mechanical. 11 320682 200923506 Excellent quality, solvent, durability, cost and other films, and will be so gathered The polarizing plate obtained after the use of the protective film is mechanically strong and excellent in 4, and can be reduced in thickness. Here, in the present invention, the so-called "poly-pair of ethylene-I-I (tetra) film) By means of the resin of the repeating unit, it is a resin composed of ethyl bismuth citrate, and may also contain constituents derived from other copolymerized components. Other copolymerization components may, for example, be: (iv) acid U-oxyethoxyoxybenzoate, 4,4-dimercaptodiphenyl, 4,4,dicarboxybenzophenone, bis(4-carboxyl a dicarboxylic acid component such as phenyl)ethane, adipic acid, sebacic acid, sodium 5-sulfoisophthalate or 1,4-dicarboxydicyclohexane; propylene glycol, butylene glycol, neopentyl glycol, Diethylene glycol, cyclohexanediol, ethylene oxide adduct of bisphenol A, diol components such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol. These dicarboxylic acid components and diol components can be used in combination of two or more kinds as needed. Further, it is also combined with the above dicarboxylic acid component and the diol component together with an oxo-benzoic acid iso-oxo acid. As the other copolymerization component, a dicarboxylic acid component and/or a diol component containing a small amount of a guanamine bond, an amine ester bond, an ether bond, an acid ester bond or the like can also be used. The manufacturing method of poly(ethylene terephthalate) can be applied to any manufacturing method such as direct reaction of citric acid with ethylene glycol (and further with other sulphuric acid and/or other diol). The polymerization method is a so-called exchange reaction method in which a transesterification reaction of dimethyl phthalate with ethylene glycol (and dimethyl vinegar and/or other diols of other dicarboxylic acids as needed) is carried out. Further, the polyethylene terephthalate may also contain a known additive as needed. Known 12 320682 200923506 :Add::: For example: turbid and anti-caking agent, heat stabilizer, anti-oxidation, light resistance, impact resistance (4) = for the board, need to penetrate (four), 'by the above raw material resin The formed polyethylene terephthalate film is formed by forming a thin crucible and applying an extension treatment. The extension can be:: toward the MD: direction (transport direction) (four) direction (perpendicular to the direction of the transport. The uniaxial extension of the extension, the extension to the MD direction and the TD direction, the direction toward the (four) direction or the TD direction. In the extension of the mechanical species, it is possible to carry out the extension treatment, and it is preferable to set the polarizing plate of the present invention to the liquid = the tendency of the interference unevenness is not easily observed, so that the sound is good, the axis is extended, and the axis is extended. The method for producing a poly(p-butyl phthalate) film is as follows: for example, a non-oriented film which is formed by melting the above-mentioned raw material resin in a glass transition temperature (four) Γ Γ The tenter is laterally extended (toward the TD direction to 130^ to the method of heat fixation treatment. At this time, the extension temperature is 80, and preferably 90 to 120 ° C, and the extension ratio is 2.5 to 6 times. (4) Membrane · θ5 times is better. If it is gentle, the material tends to have a good transparency when it is used. When the biaxially stretched glass (4) is formed into a sheet and formed into a non-oriented film, it is more than In the temperature, the longitudinal extension is carried out by a tenter (extending toward md °) Then, the method of lateral extension (extending in the direction of the buckle) is performed 320682 13 200923506; and the method of extending in the longitudinal direction and the lateral direction at the same time. In addition, in order to reduce the deflection of the orientation main axis, after performing the lateral extension - and performing heat fixation Preferably, the polyethylene terephthalate film is subjected to a relaxation treatment in a longitudinal direction before the treatment. The temperature at which the relaxation treatment is carried out is 90 to 200 ° C, and preferably 120 to 180 ° C. The amount of slack varies depending on the lateral stretching conditions, and the amount of slack and the temperature at the time of the relaxation treatment are preferably set so that the heat shrinkage ratio of the polyethylene terephthalate film after the relaxation treatment is 150% or less at 25% or less. r' - The heat setting temperature can be set at 180 to 250 ° C, and preferably 200 to 245 ° C. When performing heat setting treatment, firstly, after heat setting treatment with a fixed length, in order to reduce the deflection of the oriented spindle Further, the strength such as heat resistance is increased, and the relaxation treatment in the width direction is preferably performed. The amount of relaxation at this time is adjusted so that the heat-shrinkage of the polyethylene terephthalate film after the relaxation treatment is 150 C. Preferably, it is preferably from 2 to 5%, and the maximum deviation of the oriented L-axis of the extended polyethylene terephthalate film used in the present invention is below 10 degrees, and 8 degrees or less is preferable, and it is preferably 5 degrees or less. If the maximum value of the skew of the orientation main axis is more than 1 degree, there is a tendency that the color development defect will become larger when it is attached to the liquid crystal display surface. The "maximum deflection of the orientation spindle" of the extended polyethylene terephthalate film can be measured by, for example, the retardation film inspection device RETS system manufactured by Otsuka Electronics Co., Ltd. The thickness of the ester film dpET is preferably from about 2 Å to about 6 Å, preferably from % to 5 (). If the thickness dpET of the film of the extended poly(p-acid) is less than 2〇p, there is a tendency to become difficult to handle 320682 14 200923506. If the thickness (Ipet exceeds 60 // m, the advantage of thinning is changed) In addition, the in-plane retardation value Rpet of the extended polyethylene terephthalate film is preferably at least 100 nm or more preferably at 3,000 nm or more. If the in-plane retardation value is less than 100 nm, there is a The color development on the front side becomes noticeable. Further, the in-plane retardation value Rpet of the extended poly(ethylene terephthalate) film is as shown in the following formula (1):

RpET= (na-nb)xdpET (1) 在此，ru係延伸聚對酞酸乙二酯薄膜之面内慢軸方向之折 射率，nb係面内快軸方向（與面内慢軸方向垂直之方向）之 折射率。 也可對延伸聚對酞酸乙二酯薄膜賦予霧度。 賦予霧度之方法無特別限制，可使用例如：在上述原 料樹脂中混合無機微粒子或有機微粒子之方法、或於延伸 聚對酞酸乙二酯薄膜之與第1偏光薄膜貼著之面相反側之 表面上塗布由在樹脂黏合劑中混合無機微粒子或有機微粒 子而成之塗布液之方法等。 無機微粒子之具代表性者可舉例如··氧化秒、梦酸膠 (colloidal silica)、氧化铭、氧化紹溶膠、銘石夕酸鹽 (aluminosilicate)、氧化铭-氧化石夕複合氧化物、高屬土、 滑石、雲母、碳酸鈣、磷酸鈣等。此外，有機微粒子可使 用例如：交聯聚丙烯酸粒子、交聯聚苯乙烯粒子、交聯聚 曱基丙烯酸曱酯粒子、聚矽氧樹脂粒子、聚醯亞胺粒子等 樹脂粒子。 於延伸聚對酞酸乙二酯薄膜之與第1偏光薄膜貼著之 15 320682 200923506 面相反侧之表面上，除了上述防眩處理（賦予霧度處理）以 外，也可經施予棒塗布處理、抗靜電處理等表面處理。此 外，也可形成由液晶性化合物或其高分子量化合物等所組 成之塗布層。 也可對本發明之製造方法中所使用之聚對酞酸乙二酯 薄膜賦予易接著層，經賦予該易接著層之聚對酞酸乙二酯 薄膜之形成方法無特別限定，可採用例如：在所有延伸步 驟結束後之薄膜上形成之方法、在將聚對酞酸乙二酯系樹 脂延伸之步驟中（亦即在縱向延伸與橫向延伸步驟之間）形 成之方法、及在即將與偏光薄膜接著前或在接著後形成之 方法等。其中，從生產性之觀點來看，以採用在將聚對酞 酸乙二酯進行縱向延伸後形成，且接著進行橫向延伸之方 法為佳。 可使易接著層賦予在聚對s大酸乙二酷之兩面上，或是 經由接著劑而賦予在與由聚乙烯醇系樹脂所組成之偏光薄 膜接著之單面上。 構成易接著劑層之成分並無特別限定，可舉例如：在 骨架中具有極性基而分子量較低且玻璃轉移溫度低之聚酯 系樹脂、胺酯系樹脂、或丙烯酸系樹脂等。此外，依需要 也可含有交聯劑、有機或無機填料、界面活性劑、及潤滑 劑等。 — 以上，說明使用經延伸之聚對酞酸乙二酯薄膜做為積 層於第1偏光板之單面上之保護膜之情形，但也可使用經 延伸之聚萘二曱酸乙二酯薄膜取代經延伸之聚對酞酸乙二 16 320682 200923506 酯薄膜，此時也可得到與上述相同之效果。 在第1偏光板中，於第1偏光薄膜之與上述聚對酞酸 乙二g旨薄膜貼合之面相反侧之面上，也可形成用以將液晶 單元與偏光板貼合之接著劑或黏著劑之層。此外，於第1 偏光薄膜之與上述聚對酞酸乙二酯薄膜貼合之面相反側之 面上，也可積層例如做為保護膜或光學補償薄膜等之透明 薄膜，並於該透明薄膜上形成接著劑或黏著劑之層。透明 薄膜可舉例如：三乙醯纖維素薄膜（TAC)等纖維素系薄膜、 〆 烯烴系薄膜、丙烯酸系薄膜、聚酯系薄膜等。並且，在上 述透明薄膜上，也可積層後述之光學機能性薄膜，並在該 光學機能性薄膜上形成接著劑或黏著劑之層。 光學補償薄膜可舉例如：使具有相位差調整機能之化 合物含於纖維素系薄膜中而成之薄膜、將具有相位差調整 機能之化合物塗布於纖維素系薄膜表面上而成之薄膜、將 纖維素系薄膜進行單軸延伸或雙軸延伸所得之薄膜等。此 外，也可將環烯烴系樹脂薄膜進行單軸延伸、或雙軸延伸 而製作成光學補償薄膜。當於大型液晶電視用液晶面板（特 別是具備垂直定向（VA)核式之液晶早元之液晶面板）中使 用本發明之偏光板套件時，從光學特性、耐久性之觀點來 看，上述光學補償薄膜係以環烯烴系樹脂薄膜之延伸物為 佳。在此，所謂「環烯烴系樹脂薄膜」係指一種由熱塑性 之樹脂所組成之薄膜，該熱塑性樹脂係具有例如降冰片稀 或多環降冰片烯系單體等由環狀烯烴（環烯烴）所組成之單 體之單元。環烯烴系薄膜可為使用單一環烯烴所得之開環 17 320682 200923506 聚合物或使用2種以上之環烯烴所得之開環共聚物之氫化 物，也可為環烯烴與鏈狀烯烴及/或具有乙烯基之芳香族 化合物等的加成共聚物。此外，在主鏈或側鏈導入有極性 基者也為有效。 當使用環烯烴與鏈狀烯烴及/或具有乙烯基之芳香族 化合物的共聚物時，鏈狀烯烴之例子可舉例如乙烯或丙烯 等，此外，具有乙烯基之芳香族化合物之例子可舉例如： 苯乙烯、α-曱基苯乙烯、核烷基取代苯乙烯等。在如此之 共聚物中，由環烯烴所組成之單體之單元係在50莫耳％以 下，例如：可為15至50莫耳％左右。特別是，當製作成 環烯烴與鏈狀烯烴與具有乙烯基之芳香族化合物的三元共 聚物時，可令由環烯烴所組成之單體之單元如同上述為較 少之量。在如此之三元共聚物中，由鏈狀嫦烴所組成之單 體之單元通常係5至80莫耳％左右，由具有乙烯基之芳香 族化合物所組成之單體之單元通常係5至80莫耳％左右。 市售之熱塑性環稀烴系樹脂有例如由德國之T i cona 公司所販售之「Topas」、由JSR(股）所販售之「ARTON」、 由日本ΖΕΟΝ(股）所販售之「ZE0N0R」及「ΖΕ0ΝΕΧ」、由三 井化學（股）所販售之「APEL」（皆為商品名）等，可適當使 用此等。將如此之環烯烴系樹脂製成薄膜後，即可得到環 烯烴系樹脂薄膜。製膜方法可適當使用溶劑澆鑄法、熔融 擠壓法等已周知之方法。此外，也市售有例如由積水化學 工業（股）所販售之「S-SINA」及「SCA40」、由（股）0PTES 所販售之「ZeonorFilm」、由JSR(股）所販售之「ARTON FILM」 18 320682 200923506 (皆為商品名）等經製 用此等。 興之環烯烴系樹脂薄膜 也可適當使 做為光學補償薄膜夕卢p/ 方向延伸為佳。藉此，、广翌糸樹脂薄膜係以至少朝- 助於液晶顯示裝置q =當的光學補償機能，而有 膜之面内相位差值“經延伸之環_系樹脂薄 4—以上8—以下較户+广以上1GGnm以下為佳、以在 超過10Onm，則有對於面：：=相：差值Rd未達4—或 此外’經延伸之環烯烴系„ 以在8Gmn以上A度方向相位差值Rth 下較佳。若厚度方向SI為= 則盥卜、f η搂从亡 值Rth未達8〇nm或超過250nm， 向2 f對於面板之視角補償能力會降低之傾 評者’經延伸之環烯烴系樹脂薄膜之面内相位差值R。 及厚度方向相位差值Rth分別如下述式⑵及⑶所示： R〇=(nx-ny)xd ⑵RpET=(na-nb)xdpET (1) Here, the refractive index of the ru-type extended polyethylene terephthalate film in the in-plane slow axis direction, and the nb-system in-plane fast axis direction (perpendicular to the in-plane slow axis direction) The refractive index of the direction). It is also possible to impart haze to the extended polyethylene terephthalate film. The method of imparting the haze is not particularly limited, and for example, a method of mixing inorganic fine particles or organic fine particles in the raw material resin or a side opposite to the surface of the extended polyethylene terephthalate film which is adhered to the first polarizing film can be used. A method of coating a coating liquid obtained by mixing inorganic fine particles or organic fine particles with a resin binder is applied to the surface. Representative examples of the inorganic fine particles include, for example, oxidized seconds, colloidal silica, oxidized melamine, oxidized sol, aluminosilicate, oxidized smear-oxidized oxide complex oxide, high It belongs to earth, talc, mica, calcium carbonate, calcium phosphate and so on. Further, as the organic fine particles, for example, resin particles such as crosslinked polyacrylic acid particles, crosslinked polystyrene particles, crosslinked poly(decyl acrylate) particles, polyoxyxylene resin particles, and polyamidene particles can be used. On the surface of the extended polyethylene terephthalate film opposite to the surface of the first polarizing film 15320682 200923506, in addition to the above anti-glare treatment (to impart haze treatment), the rod coating treatment may be applied. Surface treatment such as antistatic treatment. Further, a coating layer composed of a liquid crystal compound or a high molecular weight compound thereof may be formed. The polyethylene terephthalate film used in the production method of the present invention may be provided with an easy-adhesion layer, and the method for forming the polyethylene terephthalate film to which the easy-adhesion layer is applied is not particularly limited, and for example, a method of forming a film after the end of all the stretching steps, a method of extending the polyethylene terephthalate resin (that is, between the longitudinal stretching and the lateral stretching step), and a method of immediately polarizing The film is formed before or after the film or the like. Among them, from the viewpoint of productivity, a method of forming a polyethylene terephthalate in the longitudinal direction and then performing lateral stretching is preferred. The easy-adhesion layer may be applied to both sides of the poly-pair succinic acid or to the single side of the polarizing film composed of the polyvinyl alcohol-based resin via an adhesive. The component constituting the adhesive layer is not particularly limited, and examples thereof include a polyester resin having a low molecular weight and a low glass transition temperature in the skeleton, an amine ester resin, or an acrylic resin. Further, a crosslinking agent, an organic or inorganic filler, a surfactant, a lubricant, or the like may be contained as needed. — The above description shows the case where the stretched polyethylene terephthalate film is used as a protective film laminated on one side of the first polarizing plate, but an extended polyethylene naphthalate film may also be used. By substituting the extended poly(p-butylene phthalate) 26 320682 200923506 ester film, the same effects as described above can be obtained at this time. In the first polarizing plate, an adhesive for bonding the liquid crystal cell to the polarizing plate may be formed on the surface of the first polarizing film opposite to the surface of the polyethylene terephthalate film to which the film is bonded. Or the layer of adhesive. Further, a transparent film such as a protective film or an optical compensation film may be laminated on the surface of the first polarizing film opposite to the surface on which the polyethylene terephthalate film is bonded, and the transparent film may be laminated on the transparent film. A layer of an adhesive or an adhesive is formed thereon. The transparent film may, for example, be a cellulose film such as a triacetyl cellulose film (TAC), a olefin-based film, an acrylic film or a polyester film. Further, an optical functional film to be described later may be laminated on the transparent film, and a layer of an adhesive or an adhesive may be formed on the optical functional film. The optical compensation film may be, for example, a film obtained by including a compound having a phase difference adjustment function in a cellulose-based film, and a film obtained by applying a compound having a phase difference adjustment function to the surface of a cellulose-based film. The film obtained by uniaxial stretching or biaxial stretching of the plain film or the like. Further, the cycloolefin resin film may be uniaxially stretched or biaxially stretched to form an optical compensation film. When the polarizing plate kit of the present invention is used in a liquid crystal panel for a large liquid crystal television (particularly, a liquid crystal panel having a vertical orientation (VA) core type liquid crystal panel), the optical body is optically and durable. The compensation film is preferably an extension of a cycloolefin-based resin film. Here, the "cycloolefin type resin film" means a film composed of a thermoplastic resin having a cyclic olefin (cycloolefin) such as a norbornene or a polycyclic norbornene-based monomer. The unit of the monomer that is composed. The cycloolefin film may be a ring-opening of a ring-opening 17 320682 200923506 polymer obtained by using a single cycloolefin or a hydrogenated product of a ring-opening copolymer obtained by using two or more kinds of cyclic olefins, or a cyclic olefin and a chain olefin and/or having An addition copolymer of a vinyl aromatic compound or the like. Further, it is also effective to introduce a polar group into the main chain or the side chain. When a copolymer of a cyclic olefin and a chain olefin and/or an aromatic compound having a vinyl group is used, examples of the chain olefin include, for example, ethylene or propylene. Further, examples of the aromatic compound having a vinyl group include, for example. : Styrene, α-mercaptostyrene, nucleoalkyl-substituted styrene, and the like. In such a copolymer, the unit of the monomer composed of the cyclic olefin is 50 mol% or less, for example, may be about 15 to 50 mol%. In particular, when a ternary copolymer of a cyclic olefin and a chain olefin and an aromatic compound having a vinyl group is produced, the unit of the monomer composed of the cyclic olefin can be made into a smaller amount as described above. In such a terpolymer, a unit of a monomer composed of a chain hydrocarbon is usually about 5 to 80 mol%, and a unit of a monomer composed of an aromatic compound having a vinyl group is usually 5 to 80% or so. Commercially available thermoplastic ring-dose-based resins are, for example, "Topas" sold by the company T i cona in Germany, "ARTON" sold by JSR (shares), and sold by the Japanese company (shares). ZE0N0R and ΖΕ0ΝΕΧ, "APEL" (all trade names) sold by Mitsui Chemicals Co., Ltd., etc., can be used as appropriate. When a cycloolefin-based resin is formed into a film, a cycloolefin-based resin film can be obtained. As the film forming method, a well-known method such as a solvent casting method or a melt extrusion method can be suitably used. In addition, "S-SINA" and "SCA40", which are sold by the Shui Shui Chemical Industry Co., Ltd., "ZeonorFilm" sold by the stock company 0PTES, and sold by JSR (shares) are also commercially available. "ARTON FILM" 18 320682 200923506 (all are trade names), etc. are used. The ring-shaped olefin-based resin film can also be suitably used as an optical compensation film for the uni-p/ direction extension. Thereby, the 翌糸 resin film is at least toward the liquid compensating device q = when the optical compensation function, and the in-plane phase difference value of the film "extended ring _ resin thin 4 - 8" The following households are more than 1 GGnm or less, and if they are more than 10 Onm, there is a face::= phase: the difference Rd is less than 4—or in addition to the 'extending cyclic olefin system', the phase is in the A degree direction of 8 Gmn or more. The difference Rth is better. If the thickness direction SI is = then the 亡 、, f η 搂 from the death value Rth is less than 8 〇 nm or more than 250 nm, to 2 f for the panel viewing angle compensation ability will be reduced by the reviewer 'extended cyclic olefin resin film In-plane phase difference R. And the thickness direction phase difference values Rth are as shown in the following formulas (2) and (3), respectively: R 〇 = (nx - ny) xd (2)

Rth=[(nx+ny)/2~n2]xd ⑶ 在此，“經延伸之環烯烴•脂薄膜之面内慢軸方向之 折射率’ny係面内快軸方向(與面内慢軸方向垂直之方向) 之折射率’ Πζ係經延伸之環驗系觸薄膜之厚度方向之 折射率’ d係經延伸之環烯㈣樹脂薄膜之厚度。 如上述之較佳的折射率特性，係除了經由適當調整延 伸倍率及延伸速度叫予以外’其餘亦可經由適當選擇延 伸時之預熱溫度、延伸溫度、加熱套件（用於在延伸後進行 減輕薄膜變形之處理）溫度、冷卻溫度等各種溫度（包括溫 320682 19 200923506 度圖形（temperature pattern))而賦予。因在較和緩的條 件下進行延伸，而可得到如上述之較佳的折射率特性。例 如，延伸倍率以訂在1. 05倍以上1. 6倍以下之範圍為佳， 並且以訂在1. 1倍以上1. 5倍以下較佳。當進行雙軸延伸 時，只要設定成使最大延伸方向之延伸倍率在上述範圍内 即可。 若經延伸之環烯烴系樹脂薄膜之厚度過厚，則加工性 會變差，此外，易產生透明性降低、或偏光板之重量增加 等問題。於是，經延伸之環烯烴系樹脂薄膜之厚度以40/z m至80/zm左右為佳。 在延伸聚對酞酸乙二酯薄膜上、及/或在積層於第1 偏光薄膜之與該聚對酞酸乙二酯薄膜貼合之面相反側之面 的做為保護膜之透明薄膜上，也可經由黏著劑而貼著光學 機能性薄膜。就光學機能性薄膜而言，除了以上述纖維素 系薄膜或環烯烴系薄膜做為基材之光學補償薄膜以外，其 .餘可舉例如··於基材表面塗布液晶性化合物並經定向之光 學補償薄膜、使某種偏振光穿透而反射顯示與其相反之性 質之偏振光的反射型偏光薄膜、由聚碳酸酯系樹脂所組成 之相位差膜、表面具有凹凸形狀且附有防眩機能之薄膜、 表面經抗反射處理之薄膜、表面具有反射機能之反射薄 膜、兼具反射機能與穿透機能之半穿透反射薄膜等。相當 於在基材表面塗布液晶性化合物並經定向之光學補償薄膜 之市售物有例如：由富士 Film(股）所販售之「WV Film」、 由新日本石油（股）所販售之「冊F i 1 m」及「NR F i 1 m」（皆 20 320682 200923506 為商品名）等。相當於使某種偏振光穿透而反射顯示與其相 反之性質之偏振光的反射型偏光薄膜之市售物有例如：由 3M Co即轉（3M公司）（在日本則為住友3m(股））所販隹之 「DBEF」（商品名）等。 ° 其:f，說明關於在第i偏光薄膜上，將延伸聚對駄酸 -酉曰_及/或上述之做為保護膜或絲補償薄膜等之 #膜予以積層之方法。於苐1偏光薄膜表面積層此等 延聚對駄酸乙二醋薄膜及/或透明薄膜之方法通常係採 =吏=者劑接著之方法。當於第2偏光薄膜之兩面使用 種劑兩面可使用同種的接著劑’此外也可使用不同 ^使接著㈣薄化之觀點來看，接著劑可舉例如水李 接著織分溶財t而絲、或錢著劑齡 刀散於水中而成者）。較佳的接著劑可舉例如：使 醇系樹脂或胺醋樹脂做為主成分之組成物。 从 當使用聚乙烯醇系樹脂做為接 r醇系樹脂除了可為部分息化之聚乙缔醇=二= 以外，也可為經絲改性之聚乙埽醇、經乙酿乙 改：改:之聚乙_、經經甲基改性之聚乙烯醇、經胺基 =====性之聚乙稀醇系樹脂。當使用聚2 烯酉子系树月曰做為接者劑成分時，該接著 醇系樹脂之水溶液。接著劑中之 /周衣成t乙知 相對於水100重量份，通常為^、辱糸樹脂之濃度係 至5重量份為佳。 ，1G重量份左右，且以i 320682 21 200923506 在含有聚乙烯醇系樹脂做為主成分之接著劑中，為了 提高接著性’以添加乙二搭或水溶性環氧樹脂等硬化 分或交聯劑為佳。水溶性環氧樹脂可舉例如：使表氣醇 以及由如二伸乙三胺或三伸乙四胺等聚伸烷基多胺盥^己 二酸等二麟反賴得之聚_多料行反朗得的聚酿 胺多胺環氧樹脂。如此之聚ϋ胺多胺環氧樹脂之市隹物有 例如：由住友CHEMHX(股）所販售之rSumirezResi:65(^ 及「Sumirez Resin 675」、由日本PMC(股）所販售之「ws_525」 等，可適當使用此等。此㈣純成分或交制之添加量 係相對於聚乙稀醇系樹脂100重量份，通常為1至1〇〇重 量份，且以1至50重量份為佳。若其添加量少，則有提高 接著性之效果會變小之傾向，另一方面若其添加量多，: 有接著劑層會變脆之傾向。 备使用胺酯樹脂做為接著劑之主成分時，適當的接著 劑組成物之例子可舉例如··聚I系離子聚合物型胺醋樹脂 與具有環氧丙氧基之化合物的混合物。在此，所謂「聚酯 系離子聚合物型胺酯樹脂」係指具有聚酯骨架之胺酯樹 脂，且為在其中導入有少量離子性成分（親水性成分）者。 如此之離子聚合物型胺酯樹脂係由於不使用乳化劑而直接 在水中乳化成乳液，故適合做為水系之接著劑。聚醋系離 子t s物型|女酯樹脂，其本身為已周知。例如：在日本特 開平7-97504號公報中，記載有聚酯系離子聚合物型胺酯 树脂做為用以使酚系樹脂分散於水性介質中之高分子分散 劑之例子，此外，在日本特開2〇〇5_〇7〇14〇號公報及曰本 320682 22 200923506 特開懸-刪17號公報巾揭示，以聚㈣ ，胺醋樹脂與具有環氧丙氧基之化合物的混合物：:：! .齊Hf:厲樹脂薄膜接合於由聚乙締 之偏光薄膜上之形態。 以曰所組成 接著劑也可使用光硬化性接著劑。光硬化 舉例如：光硬化性環氧樹脂與者听 物等。 *卞表口起始劑之混合 制㈣_延料賊酸乙二㈣膜及 膜貼合於第1偏光薄膜表面上之方法係可使用以往= 之方法，例如依流鑄法、絲棒塗布法、凹版塗布法、逗點 式（:贴）塗布法、刮刀—tor blade)塗布法、模具塗布 法、浸塗法、噴霧法等，將接著劑塗布於第i偏光薄ς及 /或貼σ於其上之薄膜之接著面後，使兩者互相重叠之方 法所明流鱗法」係指使做為被塗布物之薄膜朝接近垂 直方向、接近水平方向、或在兩者之間之斜向移 、使接著劑在其表面流下並散佈之方法。 寺 厶依如上，之方法塗布接著劑後，將第1偏光薄膜與貼 上之相藉料輥等而夾住並使其貼合，藉此將兩 者接合。 γ “此外、’也可適當使用在第1偏光薄膜與貼合於其上之 薄，之間滴下接著劑後，將此積層體以輥等進行加壓而使 接著劑均勻壓勒η 古、、表 換㈣4 此時’報之材f可使用金屬或 多二。並且，較佳也可採用在第丨偏光薄膜與貼合於立 上之溥臈之間滴下接著劑後’將此積層體通過輥盘敎 320682 23 200923506 間’進行加壓而使接著劑均勻壓散 輥可為相同材質，也可為不同材質。/ 。此時，此等 著在錢或硬㈣，❹上述_等貼合後之接 者劑層之厚度係以在以下為佳， 口後之接 以上為佳。 乂在〇· 01 //Π1 ^ 了提高接紐，在f丨偏光薄駭々貼 ^專膜之接著表面，也可適當施予 :… '，紫外線照射處理、火焰（flame)處理、白化，處理、 理。息化處理可舉例如：浸潰於如氣氧”面處 鹼性水溶液中之方法。 ·虱孔化鉀等 通常將經由上述水系接著劑而接合 處理，以進行接㈣層之賴H 予乾燥 如噴吹熱風而進行。乾燥溫度係適當選自二=: y 。乾燥後之接著劑層之厚度通常係〇. 〇〇丨至ς ：°· 01 ^ ^ ^ ^ 外觀^：；^)。若接著㈣之厚度過厚1偏光板之 ^在乾燥處理後，可在室溫以上之溫度施予至少半天（通 :數天以上）之硬化，而得到充分的接著強度。如此之硬 ，典型的例子係在纏繞成輥狀之狀態下進行。較佳之硬 化溫度係在30至5(TC之範圍，且以在35°C以上45χ：以下 ^佳。若硬化溫度超過5〇它，則在纏繞成輥狀之狀態下會 變得易發生所謂「捲緊」。再者，硬化時之濕度無特別限定θ. 320682 24 200923506 以選擇相對濕度在0% RH至70%如士 I 時間通常係1天至〗。天左右 另τ，當使用光硬化型接著劑將偏光薄= ===:接合時，在接合後’經由照射活性能量Rth=[(nx+ny)/2~n2]xd (3) Here, "the refractive index of the in-plane slow axis direction of the extended cyclic olefin/lipid film" is the in-plane fast axis direction (with the in-plane slow axis) The refractive index of the direction perpendicular to the direction ' Πζ is the thickness of the extended film of the touch film in the thickness direction' d is the thickness of the extended cyclic olefin (4) resin film. The preferred refractive index characteristics as described above In addition to the appropriate adjustment of the stretching ratio and the extension speed, the rest can be extended by appropriate selection of the preheating temperature, the extension temperature, the heating kit (for the treatment of reducing the deformation of the film after stretching), the cooling temperature, etc. The temperature (including the temperature of 320,682, 19, 2009, 23,506, and the temperature pattern) is given. The refractive index is better than the above, and the refractive index is better as described above. For example, the stretching ratio is set at 1. 05.倍倍以下以下的范围优选优选为1. 1倍以上以下优选优选。 When the biaxial extension is carried out, as long as the maximum extension direction of the extension ratio is within the above range Just fine. When the thickness of the stretched cycloolefin-based resin film is too large, the workability is deteriorated, and the transparency is lowered or the weight of the polarizing plate is increased. Therefore, the thickness of the stretched cycloolefin resin film is Preferably, it is about 40/zm to about 80/zm. On the extended polyethylene terephthalate film, and/or on the opposite side of the surface of the first polarizing film which is bonded to the polyethylene terephthalate film. On the transparent film which is a protective film, an optical functional film may be adhered via an adhesive. The optical functional film is made of the above-mentioned cellulose film or cycloolefin film as a substrate. In addition to the optical compensation film, for example, a liquid crystal compound is applied to the surface of the substrate, and an optical compensation film is oriented, and a polarized light is transmitted to reflect the polarized light of the opposite nature. a film, a retardation film composed of a polycarbonate resin, a film having an uneven surface and having an anti-glare function, a film having an antireflection surface, and a reflective film having a reflective function on the surface, A transflective film having a reflective function and a penetrating function, etc. A commercial product equivalent to an optical compensation film coated with a liquid crystal compound on the surface of a substrate, for example, is sold by Fuji Film Co., Ltd. "WV Film", "F i 1 m" and "NR F i 1 m" (both 20 320682 200923506 are trade names) sold by Nippon Oil Co., Ltd. A commercially available product of a reflective polarizing film which is equivalent to a polarized light which transmits a polarized light and reflects a property opposite thereto is, for example, 3M Co (3M Company) (in Japan, Sumitomo 3m (share)) ) "DBEF" (trade name) sold by the company. °: f, a method for laminating a film of the extended polyparaic acid-酉曰_ and/or the above-mentioned protective film or silk compensation film on the i-th polarizing film. The method of concentrating the surface area of the polarizing film of 苐1 on the film of bismuth citrate and/or the transparent film is usually followed by the method of 吏=. When the seed coating agent is used on both sides of the second polarizing film, the same kind of adhesive can be used on both sides. In addition, it is also possible to use different materials to make the thinner (4) thinner, and the adhesive agent may be, for example, water plum and then weaving. Or money is the age of the knife scattered in the water). A preferred adhesive agent is, for example, a composition containing an alcohol resin or an amine vinegar resin as a main component. From the use of polyvinyl alcohol-based resin as the lignin-based resin, in addition to the partially polyaminated alcohol = two =, it can also be warp-modified polyethylene glycol, modified by B: Change: Polyethylene _, polyvinyl alcohol modified by methyl group, polyethylene resin with amine group =====. When a polydiene fluorene tree is used as a carrier component, the aqueous solution of the alcohol resin is followed. The concentration of the astringent resin is preferably from 5 parts by weight, based on 100 parts by weight of the water. , about 1G parts by weight, and i 320682 21 200923506 In the adhesive containing a polyvinyl alcohol-based resin as a main component, in order to improve the adhesion, it is necessary to add a hardening or cross-linking such as Ethylene or water-soluble epoxy resin. The agent is better. The water-soluble epoxy resin may, for example, be a gas alcohol and a poly-alkylene polyamine phthalic acid such as diethylenetriamine or triethylenetetramine. Anti-Round polyamine epoxy resin. Such a commercial product of polyamine polyamine epoxy resin is, for example, rSumirez Resi: 65 (^ and "Sumirez Resin 675" sold by Sumitomo CHEMHX (shares), sold by Japan PMC (shares)" Ws_525", etc., may be suitably used. The amount of the pure component or the blending amount is usually 1 to 1 part by weight, and 1 to 50 parts by weight, based on 100 parts by weight of the polyethylene glycol resin. If the amount of addition is small, the effect of improving the adhesion tends to be small. On the other hand, if the amount of addition is large, the adhesive layer tends to become brittle. In the case of the main component of the agent, an example of a suitable adhesive composition is, for example, a mixture of a poly I-based ionic polymer type amine vinegar resin and a compound having a glycidoxy group. The term "polymeric amine ester resin" means an amine ester resin having a polyester skeleton, and is a small amount of an ionic component (hydrophilic component) introduced therein. Such an ionic polymer type amine ester resin is not used as an emulsifier. It is directly emulsified into emulsion in water, so it is suitable as A polyester-based ionic polymer-type urethane resin is described in Japanese Laid-Open Patent Publication No. Hei 7-97504, the entire disclosure of which is incorporated herein by reference. An example of a polymer dispersant for dispersing a phenolic resin in an aqueous medium, in addition, in Japanese Patent Publication No. 2〇〇5_〇7〇14〇 and 曰本320682 22 200923506 The publication of the publication discloses a mixture of a poly(iv), an amine vinegar resin and a compound having a glycidoxy group:::: Hf: a film of a resin film bonded to a polarizing film made of polyethyl amide. A photocurable adhesive can also be used as the adhesive. Photohardening is, for example, a photocurable epoxy resin, a listener, etc. * Mixing of a surface-initiating agent (4) _ extended thief acid ethylene (tetra) film and film The method of bonding to the surface of the first polarizing film can be carried out by a conventional method such as a flow casting method, a wire bar coating method, a gravure coating method, a comma coating method, or a blade coating. Method, die coating method, dip coating method, spray method, etc., coating the adhesive The method of illuminating the i-th polarizing thin film and/or affixing the contiguous surface of the film on the smear, and superimposing the two on each other means that the film as the object to be coated is close to the vertical direction and close to the horizontal direction. Or a method of obliquely moving between the two, allowing the adhesive to flow down and spread on its surface. After applying the adhesive as described above, the temple is sandwiched between the first polarizing film and the attached phase-feeding roller or the like, and the two are joined. γ "In addition," it is also possible to use a thinner between the first polarizing film and the thinner film bonded thereto, and then apply the laminate to a roll or the like to uniformly press the adhesive. , Table change (4) 4 At this time, the material f can be used with metal or more. Moreover, it is preferable to use the layered body after dropping the adhesive between the second polarizing film and the crucible attached to the stand. Pressing the roller 敎320682 23 200923506 to pressurize the adhesive to make the adhesive uniform roller can be the same material, or different materials. / At this time, this is in the money or hard (four), ❹ the above _ etc. The thickness of the connector layer after the combination is preferably as follows, and the above is better than the mouth. 乂在〇· 01 //Π1 ^ The contact is improved, and the polarizing film is applied to the film. Next, the surface may be appropriately applied: ... ', ultraviolet irradiation treatment, flame treatment, whitening, treatment, and treatment. For example, the method of immersing in an alkaline aqueous solution such as a gas oxygen surface . - 虱 化 等 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 通常 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The drying temperature is suitably selected from two =: y. The thickness of the adhesive layer after drying is usually 〇. 〇〇丨 to ς : °· 01 ^ ^ ^ ^ Appearance ^:; ^). If the thickness of (4) is too thick, the thickness of the polarizing plate can be hardened at room temperature or higher for at least half a day (passing: several days or more) to obtain sufficient bonding strength. It is so hard that a typical example is carried out in a state of being wound into a roll. The preferred curing temperature is in the range of 30 to 5 (TC), and is preferably 45 ° C or more: 35 ° C or less. If the curing temperature exceeds 5 〇, it becomes easy to occur in a state of being wound into a roll. In addition, the humidity during hardening is not particularly limited. θ. 320682 24 200923506 To select the relative humidity at 0% RH to 70%, such as the time of the I, usually 1 day to 〗 〖. The hardening type adhesive will be thin polarized ====: when joined, after the bonding, 'passing the active energy

Li。 低壓水銀燈、中壓水銀燈、高壓 銀燈、化學燈、黑光燈、微波激發水銀 llL 性接者劑進行照光之照光強 度係依該切純接著劑之組成而適當 ^惟對聚合起㈣之活性化為有效的波“域^㈣ 度係以〇. 1至_〇mW々m2為佳。#該騎強度在Q. imW/ cm以上時’反應時間不會變得過長，當在咖㈣八^ 下時.，因自光源所輕射出之熱及光硬化性接著劑在硬化時 之發熱而造成之環氧樹脂變黃和偏光薄臈劣化之可能性 低。對光硬化性接著劑進行照光之照光時間係依所硬^之 光硬化性接著劑進行個別控制者而無特別限定，以設定成 使作為上述照射強度與照射時間之乘積而表示之累計光量 達10至lOOOOmJ/cm2為佳。當對光硬化性接著劑進行照光 之累計光量在l〇mJ/cm2以上時’可使源自聚合起始劑之活 性種產生足量而使硬化反應更確實地進行，當在1〇〇〇〇mj /cm2以下時，照射時間不會變得過長，而可維持良好的生 產性。再者，照射活性能量線後之接著劑層之厚度通常係 0.001至5/zm左右’較佳係在0.01//m以上，此外較佳係 320682 25 200923506 在2 // m以下（更佳係在1 # m以下）。 當經由照射活性能量線使光硬化性接著劑硬化時，以 在第1偏光薄膜之偏光度、穿透率及色澤，以及聚對献酸 乙二酯薄膜及光學補償薄膜等透明薄膜之透明性等偏光板 的各種機能不會降低之條件下進行硬化為佳。 (弟2偏光板） 第2偏光板係做為液晶面板之前面側（觀看側）偏光板 使用者，且係藉由在由聚乙烯醇系樹脂所組成之第2偏光 薄膜之單面積層具有防炫爍性之保護膜而製作。具體而 言，第2偏光薄膜係藉由使二色性色素吸附定向於經單轴 延伸之聚乙烯醇系樹脂薄膜而成者，且同樣可 偏光薄膜中所述者。有關外形（厚度等）、材質及製造方法 等，第1偏光薄膜與第2偏光薄膜可相同或不同。 / 具有防炫爍性之保護膜之霧度值係在15%以上45% 以下之範圍。若霧度值低於15%，則無法得到充分的防i 色不均之效果，此外，若高於，則畫面會發白而使辨 識性降低。在此，霧度值係藉由依照JIS K 7136之方法進 行測定。霧度值在⑽以上以下之範圍之防炫燦性保 護膜可依例如於樹郎縣㈣成含有有機微粒子或益機 f粒子之塗膜之方法、在樹財混合無機微粒子或有機微 粒子後予以_狀方法#而製造，但並限 形成上述塗膜之方法可例示如：於樹料膜表面塗布^有 =硬化性樹脂組成物所組成之黏合魏分與有機微粒子或 …、機微粒子的塗布液之方法等。做為防炫爍性保護膜之基 320682 26 200923506 材之樹脂可舉例如：三乙it纖維素（TAC)等纖維素系樹脂、 '烯烴系樹脂、丙烯酸系樹脂、聚酯系樹脂等。 無機微粒子之具代表性者可使用例如：氧化矽、矽酸 膠、氧化鋁、氧化鋁溶膠、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。此外， 有機微粒子可使用例如：交聯聚丙烯酸粒子、甲基丙烯酸 甲酯/苯乙烯共聚物樹脂粒子、交聯聚苯乙烯粒子、交聯 聚甲基丙烯酸甲酯粒子、聚矽氧樹脂粒子、聚醯亞胺粒子 等樹脂粒子。 將做為上述基材之樹脂、或是做為混合有有機微粒子 或無機微粒子之基材之樹脂予以成形為薄膜狀之方法，可 採用已周知之方法。所得之防炫爍性保護膜之厚度係例 如：1至120/zm，且以20至100/zm為佳。 在第2偏光板中，於第2偏光薄膜之與上述防炫爍性 保護膜所貼合之面相反側之面上，也可形成用以將液晶單 元與偏光板貼合之接著劑或黏著劑之層。此外，於第2偏 V. 光薄膜之與上述防炫爍性保護膜所貼合之面相反側之面 上，也可積層例如做為保護膜或光學補償薄膜等之透明薄 膜，並於該透明薄膜上形成接著劑或黏著劑之層。透明薄 膜可舉例如：三乙醯纖維素薄膜（TAC)等纖維素系薄膜、烯 烴系薄膜、丙烯酸系薄膜、聚酯系薄膜等。並且，在上述 透明薄膜上，也可積層光學機能性薄膜，並在該光學機能 性薄膜上形成接著劑或黏著劑之層。光學補償薄膜及光學 機能性薄膜同樣可使用在第1偏光板中所述者。 27 320682 200923506 關於在第2偏光薄膜上積層防炫爍性保護膜及/或做 為保護膜或光學補償薄膜等之透明薄膜之方法，同樣可採 用在第1偏光板中所述之方法。當於第2偏光薄膜之兩面 使用接著劑時，兩面可使用同種的接著劑，此外也可使用 不同種的接著劑。此外，製作第1偏光板時所使用之接著 劑與製作第2偏光板時所使用之接著劑可相同或不同。 〈液晶面板及液晶顯不裝置&gt; 本發明之液晶面板係使用上述偏光板套件所得之液晶 面板，具體而言，係由依序配置上述第1偏光板、液晶單 元、及上述第2偏光板而成。在此，第1偏光板係配置成： 使第1偏光薄膜之與積層有聚對酞酸乙二酯薄膜之面相反 側之面係與液晶單元成為相對向；第2偏光板係配置成： 使第2偏光薄膜之與積層有防炫爍性保護膜之面相反侧之 面係與液晶單元成為相對向。換言之，第1偏光板係以第 1偏光薄膜之與積層有聚對酞酸乙二酯薄膜之面相反側之 面做為接著面，使用接著劑或黏著劑而貼附於液晶單元； κ - 或是隔著積層於第1偏光薄膜之與積層有聚對酜酸乙二酯 薄膜之面相反側之面上的做為保護膜或光學補償薄膜等之 透明薄膜、或再積層於其上之光學機能性薄膜，而貼附於 液晶單元。同樣地，第2偏光板係以第2偏光薄膜之與積 層有防炫爍性保護膜之面相反側之面做為接著面，使用接 著劑或黏著劑而貼附於液晶單元；或是隔著積層於第2偏 光薄膜之與積層有防炫爍性保護膜之面相反侧之面上的做 為保護膜或光學補償薄膜等之透明薄膜、或再積層於其上 28 320682 200923506 之光學機能性薄膜，而貼附於液晶單元。 : = 單元可採用以往已周知之構成，可使用例如：扭 古: TWlStedNematic)型、垂直定向（VA)型等各種 方式之液晶單元。 延伸發所得之液晶面板，因將 所以已偏光板之保護膜使用， 聚對欧Γ乙械性強度以及薄化，此外，_於延伸 f均），解賴之相位差所造成之U均（干涉不 炫泮性霧度值在15%以上45%以下之範圍之防 職保濩胺做為第2偏光板之保護膜而減低。 之4上二表示本發明之液晶顯示袈置之基本的層構成 配以第1圖所示之液晶顯示震置係依序 著於液晶單元40之’光擴政板50;及由液晶單元40、貼 2〇、與貼著於rlt-面面侧偏光板之第1偏光板 、之日日單π 40之另一面且傲么此工/ t L第2偏光板30所址成的液晶面板 ^側偏光板之 以光學補償薄膜23與延伸聚對_乙:=2。係具有 =光薄膜21而成之構成，並配置:=:夾住第 與液晶單S4G成為相對向。 吏先予補I專膜23 _此外’第2偏光板30係具有β光學補 ，護膜34夹住第2偏光薄上與防 二，學補償薄膜33與液晶單元4::，構成’並配 置=1圖所示之本發明之液晶顯示裝置中相對向。亚且’ 成使做為背面側偏光板之第丄偏光板2〇成=面板係配 成為Θ光源側， 320682 29 200923506 亦即使延伸聚對酞酸乙二酯薄膜24與光擴散板5〇成為相 對向。 在此，光擴散板50係具有使來自背光源1〇之光擴散 之機能之光學構件，可為例％ :使做為光擴散劑之粒子分 散在熱塑性樹脂巾而賦予光擴散性者、在熱塑性樹脂板之 表面形成凹凸而賦予光擴散性者、在熱塑性樹脂板之表面 5又置經分散有粒子之樹脂組成物之塗布層而賦予光擴散性 者等。其厚度可設定為〇. 1至5mm左右。此外，在光擴散 板〇 v、夜日日面板之間也可配置稜鏡片（prism sheet)(也稱 為聚光^片，例如：3M公司製之「BEF」等）、亮度提高薄片 (與先前所述之反射型偏光薄膜相同者）等顯示其他光學機 能性之薄片。顯示其他光學機能性之薄片，依需要而也可 配置複數種。並且，光擴散板5〇也可使用例如··如將表面 〃有圓检开&gt; 狀之稜鏡片與光擴散片積層成一體之物（例 =:記载於日本特開2006_284697號公報中者）等將其他機 能與光擴散機能複合而成之光學薄片。 如此之本發明之液晶顯示裝置係使用本發明之液晶面 板=传者’且與液晶面板同樣地已實現提高機械性強度以 及i化_並且已改善色不均（干涉不均）。再者，本發明之 1顯示u並不受限於第1圖所示之構成，也可進行各 =形。例如，如同上述，光學補償_ 23及/或光學補 33並非必要而也可省略。此外，也可使用保護膜來 絲二學補償薄膜23及/或光學補償薄膜33。並且，於 _上及/或延伸聚瓶酸乙二㈣膜24 _L，也可積 320682 30 200923506 層上述之光學機能性薄膜。 (實施例） 以下，藉由實施例更詳細說明本發明，但本發明並不 受此等例子所限定。在例子中，表示含有量及使用量之「％ _ 及「份」，只要未特別記載，即表示質量基準。 〔製造例1〕偏光薄膜之製作 將平均聚合度約2400、皂化度在99. 9莫耳％以上且 厚度75//m之聚乙烯醇薄膜浸潰於30°C之純水中後，在30 °C下浸潰於碘/碘化鉀/水之質量比為0.02/2/100之 水溶液中。之後，在56. 5°C下浸潰於破化鉀酸/水之 質量比為12/5/100之水溶液中。接著，用8°C之純水洗 淨後，在65°C乾燥，而得到在聚乙稀醇中吸附定向有蛾之 偏光薄膜。延伸主要係在碘染色及硼酸處理之步驟中進 行，總延伸倍率係5. 3倍。 〔製造例2〕防炫爍性保護膜之製作 使用由季戊四醇三丙烯酸酯與多官能胺酯化丙烯酸酯 (二異氰酸六亞曱酯與季戊四醇三丙烯酸酯之反應生成物） 以質量比60/40而在乙酸乙酯中溶有固形份濃度60% ， 且含有均染劑之紫外線硬化性樹脂組成物。此紫外線硬化 性樹脂組成物在硬化後係顯示1.53之折射率。 在上述紫外線硬化性樹脂組成物中，相對於紫外線硬 化性樹脂組成物10 0份，加入表1所示之量之平均粒徑為 3//m且折射率為1.57之甲基丙烯酸曱酯/苯乙烯共聚物 樹脂粒子並使其分散後，添加乙酸乙酯使固形份（包括樹脂 31 320682 200923506 粒子）之濃度達3〇% ，而調製出塗布液。 在厚度80//m之三乙醯纖維素（TAC)薄膜上，將上述之 塗布液塗布成使乾燥後之塗膜厚度達4/zm，並在設定於6〇 C之乾燥機中使其乾燥3分鐘。從乾燥後之薄膜之光硬化 性樹脂組成物層側，照射強度20mW/cm2之來自高壓水銀燈 之光而使換异成h射線之光量達20OmJ/cm2，使紫外線硬 化性樹脂組成物層硬化後，得到由表面具有凹凸之硬化樹 月曰膜與TAC薄膜的積層體所組成之透明的防炫爍性保護膜 (A)至(〇。 …、 使用依照JIS K 7136之（股）村上色彩技術研究所製之 霧度計「HM-150」型，測定防炫爍性保護膜（…至^之霧 度。為了防止樣品翹曲，而使用光學性透明的黏著劑，以 凹凸面成為表面之方式將防炫爍性保護膜之TAC薄膜貼合 於破璃基板後供於測定。防炫爍性保護膜（A)至（c)之霧^ 測疋結果如表1所示。 表1 防炫爍性保 紫外線硬化性樹脂 樹脂粒子 €膜 - ---- 組成物使用量 平均粒徑 一折射 添加量 霧度 100份 3//m 1.57 3份 13% 100份 3//m 1.57 10份 24% 100份 3/zm 1.57 20份 44% (實施例1) (a)背面侧偏光板之製作 於製造例1中所得之偏光薄膜之單面上，在對其貼合 320682 32 200923506 r镇H處理後’經由接著劑而貼合延伸聚對敗酸乙二 、（尽度45_。接著，於偏光薄膜之相反面上，在 内二立差信糸樹脂所組成之光學補償薄膜(厚度，m，面 側偏光板。相位差值i25nm) ’而得到背面 降冰片婦系料t 乙二酉旨薄膜及由雙轴延伸 慢轴盘該偏=所組成之光學補償薄膜係貼合成使該等之 ，光板膜之延伸轴呈垂直。其次，於該背面侧偏 二延伸降冰片烯系光學補償薄膜面上設置黏 (25//m 厚）之層。 4 4 (b) 前面側偏光板之製作 於製化例1中所得之偏光薄膜之單面上，經由接著 ==製造例2中所得之防炫爍性保護膜⑻，並於偏光i 二之相反面上，在對其貼合面施予電晕處理後，經由接著 而厚貼/Γ糾料冰料彡如旨所线之光學補償薄 、=厚度心m，w目位騎55nm，厚度方向相位 埽系樹脂所組成之光學補償薄 t由雙軸延伸降冰片 光薄膜之延伸軸呈垂直。於該，糸貼合成使其慢軸與該偏 冰片烯系光學補償薄臈面上曳引面側偏光板之雙軸延伸降 (c) 液晶面板及液晶顯:置黏著劑（25//m厚）之層。 從搭载有垂直定向型=製作_ (Sharp(股）製之「lc〜42gx丨/日日顯不元件的市售液晶電視 後，經由形成於光學補償」）之液晶單兀將偏光板剝下 1上之轉懸1使與原本 320682 33 200923506 貼著於液晶電視之偏光板之吸收軸方向成為一致之方式， 於液晶單元之背面侧（背光源侧）則將上述背面側偏光板予 以貼合、於液晶單元之前面（觀看侧）則將上述前面侧偏光 板予以貼合，而製得液晶面板。其次，將此液晶面板以背 光源/光擴散板/棱鏡片（3M公司製之「BEF」）/亮度提 高薄片（3M公司製之「DBEF」）/液晶面板之構成進行組裝， 而製得液晶顯示裝置。關於該液晶顯示裝置，以肉眼評估 在從正面及斜向觀看時之色不均（干涉不均）之程度。評估 結果如表2所示。 (實施例2) 除了使用製造例2中所得之防炫爍性保護膜（C)做為 前面側偏光板之防炫爍性保護膜以外，其餘與實施例1同 樣進行，而製得前面侧偏光板，並組裝液晶顯示裝置後， 評估色不均。評估結果如表2所示。 (比較例1) 於製造例1中所得之偏光薄膜之單面上，經由接著劑 % 而貼合三乙醯纖維素薄膜（厚度80//m)，於偏光薄膜之相 反面上，在對其貼合面施予電暈處理後，經由接著劑而貼 合由雙轴延伸降冰片烯系樹脂所組成之光學補償薄膜（厚 度68 // m，面内相位差值55nm，厚度方向相位差值125nm)， 而得到偏光板。再者，由雙軸延伸降冰片烯系樹脂所組成 之光學補償薄膜係貼合成使其慢轴與該偏光薄膜之延伸軸 呈垂直。於該偏光板之雙軸延伸降冰片烯系光學補償薄膜 面上設置黏著劑（2 5 // m厚）之層。其次，除了使用該偏光 34 320682 200923506 板做為前面侧偏光板以外，其餘與實施例1同樣進行，組 裝液晶顯示裝置後，評估色不均。評估結果如表2所示。 (比較例2) 除了使用製造例2中所得之防炫爍性保護膜（A)做為 前面側偏光板之防炫爍性保護膜以外，其餘與實施例1同 樣進行，而製得前面側偏光板，並組裝液晶顯示裝置後， 評估色不均。評估結果如表2所示。 表2 例No. 防炫爍性保護膜 色不均之程度 薄膜No. 霧度 從正面觀看之情形 從斜向觀看之情形 實施例1 (B) 24% 無 小 實施例2 (C) 44% 無 小 比較例1 — '— 無 大 比較例2 (A) 13% 無 大 如表2所示，得知若藉由使用本發明之偏光板套件所 得之液晶面板、液晶顯示裝置，則即使在使用由聚對酞·酸 乙二酯所組成之保護膜時，也可充分減低在從正面及斜向 觀看時之色不均（干涉不均）。 【圖式簡單說明】 第1圖係表示本發明之液晶顯示裝置之基本的層構成 之一例之示意剖面圖。 【主要元件符號說明】 10 背光源 20 第1偏光板 21 第1偏光薄膜 23、33光學補償薄膜 35 320682 200923506 第2偏光薄膜 液晶早兀 24 延伸聚對酞酸乙二酯薄膜 30 第2偏光板 31 34 防炫爍性保護膜 40 50 光擴散板 36 320682Li. The low-pressure mercury lamp, the medium-pressure mercury lamp, the high-pressure silver lamp, the chemical lamp, the black lamp, and the microwave-excited mercury llL splicer are used to illuminate the light intensity according to the composition of the diced adhesive, and activate the polymerization (4). For the effective wave "domain ^ (four) degree system is better than 1. 1 to _ 〇 mW 々 m2. # The riding intensity is above Q. imW / cm 'reaction time will not become too long, when in the coffee (four) eight ^ Next time, the possibility of yellowing of the epoxy resin and deterioration of the polarizing thinning due to the heat emitted from the light source and the heat of the photocurable adhesive during hardening is low. Illuminating the photocurable adhesive The illumination time is not particularly limited as long as it is individually controlled by the light-curable adhesive, and it is preferable to set the cumulative light amount expressed as the product of the irradiation intensity and the irradiation time to 10 to 100 mJ/cm 2 . When the integrated light amount for illuminating the photocurable adhesive is l〇mJ/cm 2 or more, 'the active species derived from the polymerization initiator can be generated in a sufficient amount to make the hardening reaction more sure, when at 1 〇〇〇 When 〇mj /cm2 or less, the irradiation time does not change. The thickness of the adhesive layer after the irradiation of the active energy ray is usually about 0.001 to 5/zm, preferably 0.01/m or more, and more preferably 320682 25 200923506 is 2 // m or less (more preferably 1 #m or less). When the photocurable adhesive is cured by irradiation of an active energy ray, the degree of polarization, transmittance, and color of the first polarizing film are It is preferable that the various functions of the polarizing plate such as the polyethylene terephthalate film and the transparent film such as the optical compensation film are hardened without lowering the condition. (Different 2 polarizing plate) The second polarizing plate is used as a liquid crystal panel. The user of the front side (viewing side) polarizing plate is produced by a protective film having a glare-proof property in a single-layer layer of a second polarizing film composed of a polyvinyl alcohol-based resin. Specifically, (2) The polarizing film is formed by directing a dichroic dye to a uniaxially stretched polyvinyl alcohol resin film, and is similar to the polarizing film. The shape (thickness, etc.), material, and manufacturing method are as follows. Etc., the first polarizing film The second polarizing film may be the same or different. / The haze value of the protective film having anti-glare property is in the range of 15% or more and 45% or less. If the haze value is less than 15%, sufficient anti-i color cannot be obtained. In addition, if the effect is uneven, the screen will be whitened and the visibility will be lowered. Here, the haze value is measured by the method according to JIS K 7136. The haze value is in the range of (10) or more. The anti-glare protective film can be produced by, for example, a method in which a coating film containing organic fine particles or a prosthetic f particle is formed in Shulang County (4), and a method of adding an inorganic fine particle or an organic fine particle to a tree, followed by a method # The method of forming the above-mentioned coating film can be exemplified by a method of coating a surface of a tree film with a composition of a cured resin composition, a binder component, an organic fine particle or a coating liquid for a fine particle. The base of the anti-glare protective film may be, for example, a cellulose resin such as triethyl cellulose (TAC), an olefin resin, an acrylic resin, or a polyester resin. Representative examples of the inorganic fine particles may be, for example, cerium oxide, ceric acid gel, alumina, alumina sol, aluminosilicate, alumina-cerium oxide composite oxide, kaolin, talc, mica, calcium carbonate, calcium phosphate. Wait. Further, as the organic fine particles, for example, crosslinked polyacrylic acid particles, methyl methacrylate/styrene copolymer resin particles, crosslinked polystyrene particles, crosslinked polymethyl methacrylate particles, polyoxyxylene resin particles, Resin particles such as polyimine particles. A method in which a resin as the above substrate or a resin in which a substrate containing organic fine particles or inorganic fine particles is formed into a film shape can be used, and a known method can be employed. The thickness of the resulting anti-glare protective film is, for example, 1 to 120 / zm, and preferably 20 to 100 / zm. In the second polarizing plate, an adhesive or adhesion for bonding the liquid crystal cell to the polarizing plate may be formed on the surface of the second polarizing film opposite to the surface to which the antiglare protective film is bonded. Layer of the agent. Further, a transparent film such as a protective film or an optical compensation film may be laminated on the surface of the second V-light film opposite to the surface to which the antiglare protective film is bonded. A layer of an adhesive or an adhesive is formed on the transparent film. The transparent film may, for example, be a cellulose film such as a triacetyl cellulose film (TAC), an olefin film, an acrylic film or a polyester film. Further, an optical functional film may be laminated on the transparent film, and a layer of an adhesive or an adhesive may be formed on the optical functional film. The optical compensation film and the optical functional film can also be used in the first polarizing plate. 27 320682 200923506 A method of laminating an antiglare protective film on a second polarizing film and/or as a transparent film such as a protective film or an optical compensation film can also be applied to the first polarizing plate. When an adhesive is used on both surfaces of the second polarizing film, the same kind of adhesive may be used on both sides, and different kinds of adhesives may be used. Further, the adhesive used in the production of the first polarizing plate may be the same as or different from the adhesive used in the production of the second polarizing plate. <Liquid Crystal Panel and Liquid Crystal Display Device> The liquid crystal panel of the present invention is a liquid crystal panel obtained by using the above-described polarizing plate kit, and specifically, the first polarizing plate, the liquid crystal cell, and the second polarizing plate are sequentially disposed. to make. Here, the first polarizing plate is disposed such that the surface of the first polarizing film opposite to the surface on which the polyethylene terephthalate film is laminated is opposed to the liquid crystal cell; and the second polarizing plate is disposed such that: The surface of the second polarizing film opposite to the surface on which the anti-glare protective film is laminated is opposed to the liquid crystal cell. In other words, the first polarizing plate is attached to the liquid crystal cell by using a surface of the first polarizing film opposite to the surface on which the polyethylene terephthalate film is laminated, and is adhered to the liquid crystal cell using an adhesive or an adhesive; Or a transparent film as a protective film or an optical compensation film or the like laminated on the surface of the first polarizing film opposite to the surface on which the polyethylene terephthalate film is laminated, or laminated thereon. An optical functional film attached to a liquid crystal cell. Similarly, the second polarizing plate is attached to the liquid crystal cell by using an adhesive or an adhesive on the opposite side of the surface of the second polarizing film opposite to the surface on which the antiglare protective film is laminated; a transparent film which is laminated as a protective film or an optical compensation film on the surface of the second polarizing film opposite to the surface on which the anti-glare protective film is laminated, or an optical function laminated thereon 28 320682 200923506 A film that is attached to a liquid crystal cell. : = The unit can be configured as in the past, and various types of liquid crystal cells such as Twisted: TWlStedNematic) and Vertically Oriented (VA) can be used. The liquid crystal panel obtained by the extension is used, so that the protective film of the polarizing plate is used, the mechanical strength and thinning of the poly-pair, and further, the extension of f, the U-phase caused by the phase difference of the solution ( The anti-seating haze having an interference-free haze value in the range of 15% or more and 45% or less is reduced as a protective film of the second polarizing plate. The second above is the basic of the liquid crystal display device of the present invention. The liquid crystal display vibrating system shown in FIG. 1 is sequentially disposed on the 'light expansion plate 50 of the liquid crystal cell 40; and the liquid crystal cell 40, the paste 2 〇, and the rlt-face side polarized light The first polarizing plate of the board, the other side of the day π 40 and the proud of this work / t L the second polarizing plate 30 is located in the liquid crystal panel ^ side polarizing plate with the optical compensation film 23 and the extended poly pair _ B: = 2 is a structure in which the light film 21 is formed, and is arranged such that: =: the first liquid crystal S4G is sandwiched. The first film is added to the first film 23 - in addition, the second polarizing plate 30 has β 光学 complement, the protective film 34 sandwiches the second polarizing thin and the second, the compensation film 33 and the liquid crystal cell 4::, and constitutes the invention shown in the figure In the liquid crystal display device, the opposite direction is made, and the second polarizing plate 2 is formed as a back side polarizing plate, and the panel is matched as a light source side, and 320682 29 200923506 is even extended with a polyethylene terephthalate film. The light diffusing plate 50 is opposed to the light diffusing plate 5A. Here, the light diffusing plate 50 is an optical member having a function of diffusing light from the backlight 1b, and can be exemplified by dispersing particles as a light diffusing agent. The light-diffusing property is imparted to the surface of the thermoplastic resin sheet by the thermoplastic resin sheet, and the light diffusing property is imparted to the surface of the thermoplastic resin sheet, and the coating layer of the resin composition in which the particles are dispersed is provided on the surface 5 of the thermoplastic resin sheet. The thickness can be set to about 1 to 5 mm. In addition, a prism sheet (also called a concentrating sheet) can be disposed between the light diffusing plate 〇v and the night day panel, for example: "BEF" manufactured by 3M Co., Ltd.), a brightness-enhancing sheet (the same as the reflective polarizing film described above), and the like, which exhibit other optical functional properties, and which can display other optical functional sheets, and can also be arranged as needed. Further, the light-diffusing sheet 5 can also be formed by, for example, a sheet having a surface which is rounded out and a sheet of light diffused into a layer (Example =: described in JP-A-2006-284697) In the liquid crystal display device of the present invention, the liquid crystal panel of the present invention is used as the liquid crystal panel of the present invention, and the mechanical strength is improved similarly to the liquid crystal panel. Further, the color unevenness (interference unevenness) is improved. Further, the display of the present invention 1 is not limited to the configuration shown in Fig. 1, and each of the shapes may be performed. For example, as described above, Optical compensation _ 23 and/or optical complement 33 are not necessary but may be omitted. Further, a protective film may be used to compensate the film 23 and/or the optical compensation film 33. Moreover, the above-mentioned optical functional film can also be accumulated on the _upper and/or extended polyacrylic acid ethylene (tetra) film 24 _L, and 320682 30 200923506 layer. (Embodiment) Hereinafter, the present invention will be described in more detail by way of examples, but the invention is not limited by these examples. In the example, "% _ and "parts" indicating the content and the amount of use, unless otherwise specified, indicate the quality standard. [Production Example 1] Preparation of a polarizing film After a polyvinyl alcohol film having an average polymerization degree of about 2400 and a degree of saponification of 99.9 mol% or more and a thickness of 75/m was impregnated in pure water at 30 ° C, It was immersed in an aqueous solution of iodine/potassium iodide/water in a mass ratio of 0.02/2/100 at 30 °C. Thereafter, it was immersed in an aqueous solution having a mass ratio of decalcified potassium acid/water of 12/5/100 at 56.5 °C. Subsequently, it was washed with pure water at 8 ° C, and then dried at 65 ° C to obtain a polarizing film in which a moth was adsorbed in a polyethylene glycol. 5倍。 The extension is 5.3 times the total extension ratio is 3-5 times. [Production Example 2] Preparation of an anti-glare protective film using a mixture of pentaerythritol triacrylate and a polyfunctional amine esterified acrylate (reactive product of hexamethylene diisocyanate and pentaerythritol triacrylate) at a mass ratio of 60 At 40%, an ultraviolet curable resin composition containing a leveling agent in a solid content of 60% was dissolved in ethyl acetate. This ultraviolet curable resin composition showed a refractive index of 1.53 after hardening. In the above ultraviolet curable resin composition, decyl methacrylate having an average particle diameter of 3//m and a refractive index of 1.57 was added to the ultraviolet curable resin composition in an amount of 10 parts by weight. After dispersing the styrene copolymer resin particles, ethyl acetate was added to adjust the concentration of the solid portion (including the resin 31 320682 200923506 particles) to 3 % by weight to prepare a coating liquid. The coating liquid was applied to a film of a thickness of 80/m on a triacetyl cellulose (TAC) film so that the thickness of the coating film after drying was 4/zm, and it was set in a dryer set at 6 〇C. Dry for 3 minutes. From the side of the photocurable resin composition layer of the dried film, the light from the high-pressure mercury lamp having an irradiation intensity of 20 mW/cm 2 is made to change the amount of light into a h-ray to 20 OmJ/cm 2 to cure the ultraviolet curable resin composition layer. A transparent anti-glare protective film (A) consisting of a laminate of a hardened tree moon-film and a TAC film having irregularities on the surface is obtained (to), using a color scheme according to JIS K 7136 Haze meter "HM-150" manufactured by the Institute, measuring the anti-glare protective film (... to haze. To prevent the sample from warping, use an optically transparent adhesive to make the surface of the surface The TAC film of the anti-glare protective film was attached to the glass substrate for measurement. The anti-glare protective film (A) to (c) was measured as shown in Table 1. Table 1 Brightening UV-curable resin resin particles film - ---- Composition usage average particle diameter - refraction addition amount Haze 100 parts 3 / / m 1.57 3 parts 13% 100 parts 3 / / m 1.57 10 parts 24% 100 parts 3/zm 1.57 20 parts 44% (Example 1) (a) Back side polarizing plate system On one side of the polarizing film obtained in Production Example 1, after the bonding treatment of 320682 32 200923506 r town H, the adhesive layer was bonded to the sulphuric acid B2 via an adhesive, (45 degrees.) On the opposite side of the polarizing film, the optical compensation film (thickness, m, face-side polarizing plate, phase difference i25nm) composed of the inner Erecson resin is obtained. The film and the optical compensation film composed of the biaxially extending slow axis disk are combined to make the extension axis of the light film film vertical. Secondly, the second side of the back side is extended with norbornene optical compensation. A layer of adhesive (25//m thick) was provided on the film surface. 4 4 (b) The front side polarizing plate was fabricated on one surface of the polarizing film obtained in Preparation Example 1, and then obtained in the following == Manufacturing Example 2. The anti-glare protective film (8), and on the opposite side of the polarized light i, after applying a corona treatment to the bonding surface, the optical layer of the ice material is adhered to Compensation thin, = thickness core m, w position riding 55nm, thickness direction phase lanthanum resin The learning compensation thinness t is perpendicular to the extension axis of the biaxially extending norbornene light film. Thus, the 糸 合成 合成 合成 使其 使其 使其 使其 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 合成 双 双 双 双 双 双 双 双 双 双 双 双 双 双Drop (c) Liquid crystal panel and liquid crystal display: layer of adhesive (25//m thick). Vertically oriented type = _ (Sharp (42%) / day display) After the commercially available liquid crystal television, the polarizing plate is peeled off by the liquid crystal unit formed in the optical compensation"), so that the original LED 320682 33 200923506 adheres to the absorption axis direction of the polarizing plate of the liquid crystal television. In the back side (backlight side) of the liquid crystal cell, the back side polarizing plate is bonded to the front surface (viewing side) of the liquid crystal cell, and the front side polarizing plate is bonded to each other to obtain a liquid crystal panel. Then, the liquid crystal panel is assembled by using a backlight/light diffusing plate/prism sheet ("BEF" manufactured by 3M Company) / brightness enhancement sheet ("DBEF" manufactured by 3M Company) / liquid crystal panel. Display device. With respect to this liquid crystal display device, the degree of color unevenness (interference unevenness) when viewed from the front side and the oblique direction was visually evaluated. The evaluation results are shown in Table 2. (Example 2) The front side was produced in the same manner as in Example 1 except that the antifoaming protective film (C) obtained in Production Example 2 was used as the antiglare protective film of the front side polarizing plate. After the polarizing plate was assembled and the liquid crystal display device was assembled, the color unevenness was evaluated. The evaluation results are shown in Table 2. (Comparative Example 1) On one surface of the polarizing film obtained in Production Example 1, a triacetone cellulose film (thickness: 80//m) was bonded via the adhesive % on the opposite side of the polarizing film, in the opposite direction. After the bonding surface is subjected to corona treatment, an optical compensation film composed of a biaxially stretched norbornene-based resin is bonded via an adhesive (thickness: 68 // m, in-plane retardation value: 55 nm, thickness direction phase difference) A value of 125 nm) was obtained, and a polarizing plate was obtained. Further, an optical compensation film composed of a biaxially stretched norbornene-based resin is bonded so that its slow axis is perpendicular to the extending axis of the polarizing film. A layer of an adhesive (25/5 m thick) was provided on the biaxially stretched norbornene-based optical compensation film of the polarizing plate. Next, in the same manner as in the first embodiment except that the polarized light 34 320682 200923506 was used as the front side polarizing plate, the color unevenness was evaluated after the liquid crystal display device was assembled. The evaluation results are shown in Table 2. (Comparative Example 2) The front side was produced in the same manner as in Example 1 except that the antiglare protective film (A) obtained in Production Example 2 was used as the antiglare protective film of the front side polarizing plate. After the polarizing plate was assembled and the liquid crystal display device was assembled, the color unevenness was evaluated. The evaluation results are shown in Table 2. Table 2 Example No. Degree of color unevenness of anti-glare protective film Film No. Case where haze is viewed from the front View from oblique direction Example 1 (B) 24% No small Example 2 (C) 44% No small comparative example 1 - '- no large comparative example 2 (A) 13% is not as large as shown in Table 2, and it is found that even if a liquid crystal panel or a liquid crystal display device obtained by using the polarizing plate kit of the present invention is used, When a protective film composed of polyparaben acid ethyl ester is used, color unevenness (interference unevenness) when viewed from the front side and the oblique direction can be sufficiently reduced. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an example of a basic layer configuration of a liquid crystal display device of the present invention. [Main component symbol description] 10 Backlight 20 First polarizing plate 21 First polarizing film 23, 33 Optical compensation film 35 320682 200923506 Second polarizing film liquid crystal early 24 extended polyethylene terephthalate film 30 Second polarizing plate 31 34 Anti-glare protective film 40 50 Light diffusing plate 36 320682

Claims (1)

200923506 七、申清專利範圍： h 一 =光板⑽，係由第1偏歧及第2偏光板所組成 之液晶面板用偏光板套件，其中， 該第1偏光板係具有由聚乙烯醇系樹脂所組成之 41偏光薄膜、與積層於該第1偏光薄膜之單面且經延 伸之由聚對酞酸乙二酯所組成之薄膜， 〃該第/偏光板係具有由聚乙婦醇系樹腊所組成之 第2偏光薄膜、與積層於該第2偏㈣膜之單面且霧度 值在15%以上45%以下之範圍之防炫爍性保護膜。又 2·如申請專利範圍第1項之偏光板套件，其中，前述^ 偏光板復具有：積層—丨偏光薄膜之與積層有前 述由聚對駄酸乙二醋所組成之薄膜之面相反側之面上 的光學補償薄膜。 3· ^申請專利範圍第i項或第2項之偏光板套件，其中， 月’J述第2偏光板復具有：積層於前述第2偏光薄膜之與 積層有前述防炫爍性保護膜之面相反側之面上的光學 補償薄膜。 4. 一種液晶面板，係使用申請專利範圍第丨項之偏光板套 件所得之液晶面板， 該液晶面板係由依序配置前述第丨偏光板、液晶單 元、及剞述弟2偏光板而成，其中， 前述第1偏光板係配置成：使前述第丨偏光薄膜之 與積層有别述由聚對S大酸乙二酯所組成之薄膜之面相 反側之面係與前述液晶單元成為相對向；且 320682 37 200923506 前述第2偏光板係配置成：使前述第2偏光薄膜之 與積層有前述防炫爍性保護膜之面相反側之面係與前 述液晶早元成為相對向。 5. —種液晶顯示裝置，係依序具備背光源、光擴散板、及 申請專利範圍第4項之液晶面板，其中， 前述液晶面板係配置成：使前述由聚對S太酸乙二酯 所組成之薄膜係與前述光擴散板成為相對向。 38 320682200923506 VII. The scope of the patent application: h = the light plate (10), which is a polarizing plate kit for a liquid crystal panel composed of a first eccentricity and a second polarizing plate, wherein the first polarizing plate has a polyvinyl alcohol resin a 41-layer polarizing film comprising a film composed of polyethylene terephthalate which is laminated on one side of the first polarizing film and extended, wherein the first/polarizing plate has a polyetheranyl tree A second polarizing film composed of a wax and an anti-glare protective film laminated on one surface of the second (four) film and having a haze value of 15% or more and 45% or less. Further, in the polarizing plate kit of claim 1, wherein the polarizing plate has a laminate-side polarizing film opposite to the surface of the film composed of the polyethylene terephthalate. An optical compensation film on the surface. 3. The polarizing plate kit of claim i or item 2, wherein the second polarizing plate of the moon has a layered on the second polarizing film and laminated with the anti-glare protective film. An optical compensation film on the opposite side of the face. 4. A liquid crystal panel obtained by using the polarizing plate kit of the scope of the patent application, wherein the liquid crystal panel is formed by sequentially arranging the second polarizing plate, the liquid crystal cell, and the second polarizing plate. The first polarizing plate is disposed such that a surface of the second polarizing film opposite to a surface of a film composed of a poly(p-sodium acid) is laminated with the liquid crystal cell; Further, the second polarizing plate is disposed such that the surface of the second polarizing film opposite to the surface on which the anti-glare protective film is laminated is opposed to the liquid crystal. 5. A liquid crystal display device comprising a backlight, a light diffusing plate, and a liquid crystal panel of claim 4, wherein the liquid crystal panel is configured to: the polyethylene terephthalate The film formed is opposed to the light diffusing plate. 38 320682
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