TW200937365A - Process for producing optical display panel - Google Patents

Process for producing optical display panel Download PDF

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Publication number
TW200937365A
TW200937365A TW97140659A TW97140659A TW200937365A TW 200937365 A TW200937365 A TW 200937365A TW 97140659 A TW97140659 A TW 97140659A TW 97140659 A TW97140659 A TW 97140659A TW 200937365 A TW200937365 A TW 200937365A
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Taiwan
Prior art keywords
film
optical
elongated
optical sheet
display element
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TW97140659A
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Chinese (zh)
Inventor
Kiyoshi Muto
Yoshiki Matsuoka
Yuuhei Inokuchi
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Sumitomo Chemical Co
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Publication of TW200937365A publication Critical patent/TW200937365A/en

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    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/0073—Optical laminates
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/38—Anti-reflection arrangements
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/02—Materials and properties organic material
    • G02F2202/022—Materials and properties organic material polymeric
    • G02F2202/023—Materials and properties organic material polymeric curable
    • G02F2202/025—Materials and properties organic material polymeric curable thermocurable
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

A process for producing an optical display panel by laminating an optical laminated sheet to an optical display element without fouling or marring the optical laminated sheet. A process for producing an optical laminated sheet is also provided which comprises: a step in which continuous optical sheets (1 and 3; and 11 and 13) are drawn out respectively of rolls (2 and 4; and 12 and 14); a first laminating step in which the optical sheets drawn are laminated to form a continuous optical laminated sheet; a second laminating step in which the optical laminated sheet is laminated as it is to an optical display element (7); and a cutting step in which the optical laminated sheet is cut. In the cutting step, the optical laminated sheet is cut into a size having an area which is larger than that of the display region of the optical display element and is smaller than that of the optical display element itself. The second laminating step may follow the cutting step.

Description

200937365 九、發明說明 【發明所屬之技術領域】 本發明係關於製造光學顯示面板之方法。 【先前技術】 過去於光學構件製造公司中，例如將具有液晶顯示裝 置所使用的偏光板等之光學功能的長形光學薄膜或其層合 Ο 體之光學薄片連續捲取爲輥狀而製造。例如將如此所製造 之偏光板移至面板加工製造廠，貼合於面板加工製造廠之 液晶顯示元件（於2片玻璃板間封入液晶的光學顯示元 件，又稱爲液晶胞）。如此製造出於液晶顯示裝置所使用 的液晶面板。過去，光學構件製造廠爲將前述偏光板等光 學部品轉移至面板加工製造廠時，面板加工製造廠將長形 光學薄片剪裁加工至所望之所定尺寸的薄片（光學薄片） 以數片重叠方式綑綁。 〇 如此光學部品製造公司中，將剪裁至所定尺寸所得之 光學薄片以數片重叠綑綁時，欲不產生塵埃或污染，要求 _ 透明度高之作業環境。又，輸送中欲不要產生傷痕或斷裂 等，特別選擇綑綁材料，綑綁作業亦必須小心翼翼。另一 方面，面板加工製造廠中，將嚴謹地綑綁的光學薄片經組 合使用於加工時，因綑綁過於嚴謹，解開綑綁的作業非常 辛苦，且解開綑綁時因可能會產生傷痕或斷裂，故必須非 常嚴謹且小心翼翼下進行，賦予作業者之負擔非常大。 對於如此問題，已提出將長形光學薄片，直接貼合於 -5- 200937365 光學顯示元件之方法（例如參照特開平1 1 -95028號公 報）、或將長形光學薄片於連續製造流程步驟上經截斷後 貼合於光學顯示面板之方法（參照特開200 7-140 046號公 報）。又，於特開20 02-196132號公報中揭示將偏光薄膜 與第一保護薄膜經貼合而捲取後，未貼合第一保護薄膜之 偏光薄膜面上貼合第二保護薄膜後製造偏光板之方法。 又，TV用途之大型光學顯示裝置（例如液晶顯示裝 置）時，該尺寸可由20英吋程度至100英吋程度，故有 ❹ 著必須使用具有配合該光學顯示裝置尺寸的光學功能之光 學薄片之問題。 例如，偏光板一般爲於偏光薄膜兩面上層合保護薄 膜，於另一方保護薄膜之外面形成黏著劑層的結構。保護 薄膜上大多賦予光學功能，例如被配置於光學顯示裝置的 辨識側之保護薄膜上，施予表面處理（硬塗佈處理、防眩 處理、反射防止處理、防污處理、防靜電處理等），又位 於偏光板與光學顯示元件之間的保護薄膜，可賦予調整光 Ο 學顯示裝置之視野角、對比、色相的相位差功能。 偏光薄膜因具有沿著該延伸方向容易斷裂之特性，一 般於偏光薄膜製造後，層合保護薄膜作爲偏光板。此時， 由製造效率之層面來看，偏光板的長形光學薄片之輥寬必 須成某程度之固定化。長形光學薄片之輥寬被固定時，如 前述之光學顯示裝置的尺寸因多樣化，故必須配合光學顯 示裝置之尺寸而截斷後取出偏光板。 因此，被廢棄之部分變多，作爲製品所使用之比率 -6- 200937365 (取效率）顯著降低。 本發明爲欲解決前述課題者，其目的爲提供一種使用 比過去更清淨，缺陷較少之光學薄膜的光學顯示面板之製 造方法。本發明又以提供一種光學薄膜或其層合體之光學 薄片的使用效率可提高之光學顯示面板的製造方法爲目 的。 〇 【發明內容】 本發明係爲於光學顯示元件貼合具有光學功能之光學 薄片層合體而製造光學顯示面板之方法，含有由具有光學 功能之至少2片長形光學薄膜或其層合體之長形光學薄片 經捲取的複數輥，引出長形光學薄膜或長形光學薄片之引 出步驟、與將引出的複數長形光學薄膜或長形光學薄片各 進行貼合，形成長形光學薄片層合體之第1貼合步驟、與 將長形光學薄片層合體直接貼合於光學顯示元件的第2貼 〇 合步驟、與由前述長形光學薄片層合體與光學顯示元件之 貼合體剪裁出光學顯示面板的顯示區域以上，且全光學顯 示面板面以下區域的長形光學薄片層合體成爲光學薄片層 合體之截斷步驟的光學顯示面板之製造方法（以下將此方 法稱爲「第1製造方法」）。 本發明又提供一種於光學顯示元件貼合具有光學功能 之光學薄片層合體而製造光學顯示面板之方法，含有由具 有光學功能之至少2片長形光學薄膜或該層合體之長形光 學薄片經捲取的複數輥，引出長形光學薄膜或長形光學薄 200937365 片之引出步驟、與將經引出的複數長形光學薄膜或長形光 學薄片進行各貼合，形成長形光學薄片層合體之第1貼合 步驟、與剪裁長形光學薄片層合體，作爲光學薄片層合體 之截斷步驟、與將前述光學薄片層合體貼合於光學顯示元 件之第2貼合步驟的光學顯示面板之製造方法（以下將該 方法簡稱爲「第2製造方法」）。 ^ 且’如前述本說明書中，將具有光學功能之1片樹脂 薄膜所成者，原則上稱爲「光學薄膜」，將複數種光學薄 Q 膜的層合體，原則上稱爲「光學薄片」，但與一般的薄膜 與薄片並無嚴密區分。例如於基材薄膜設置藉由塗佈或表 面處理的光學層者爲1片，原則上分類爲「光學薄膜」。 又’如以下所述，具有偏光功能之樹脂薄膜本身（例如二 色性色素經吸附定向的聚乙烯醇樹脂薄膜所成者相當此） 稱爲「偏光薄膜」，偏光薄膜較少的一面上層合保護薄膜 等其他光學薄膜者稱爲「偏光板」。「偏光薄膜」成爲 「光學薄膜」之一種，「偏光板」成爲「光學薄片」之— ❹ 種。 前述本發明之第1製造方法或本發明之第2製造方法 (以下總稱這些爲「本發明之製造方法」。）中，提供於 引出步驟之長形光學薄膜或長形光學薄片的1片含有聚乙 烯醇樹脂薄膜所成之偏光薄膜者爲佳。 本發明的製造方法中，提供於引出步驟之長形光學薄 片的1片可爲，具有聚乙烯醇樹脂薄膜所成之偏光薄膜、 與該偏光薄膜的至少一面上經貼著之熱塑性樹脂所成之保 -8 - 200937365 護薄膜的偏光板。 又，本發明之製造方法中，提供於引出步驟的長形光 學薄片之1片爲可具有聚乙烯醇樹脂薄膜所成之偏光薄 膜、與該偏光薄膜的至少一面上所形成之黏著劑層、與保 ^ 護該黏著劑層之離型薄膜的偏光板。此時，第1貼合步驟 或第2貼合步驟中，該離型薄膜被剝離，露出之黏著劑層 貼合於其他光學薄膜、或光學薄片或光學顯示元件。 G 又，本發明的製造方法中，提供於引出步驟的長形光 學薄片之1片可爲具有聚乙烯醇樹脂薄膜所成之偏光薄 膜、與該偏光薄膜的一面上經貼著之熱塑性樹脂所成之保 護薄膜、與偏光薄膜之另一面上所形成之黏著劑層、與保 護該黏著劑層之離型薄膜的偏光板。 此時，第1貼合步驟或第2貼合步驟中，該離型薄膜 被剝離，露出之黏著劑層提供於對其他光學薄膜、或光學 薄片或光學顯示元件之貼合上。 © 且，本發明之製造方法中，提供於引出步驟之長形光 學薄片的1片亦可爲具有聚乙烯醇樹脂薄膜所成之偏光薄 . 膜、與該偏光薄膜之一面上所貼著的熱塑性樹脂所成之保 I 護薄膜、與於保護薄膜外面所形成之黏著劑層、與保護該 黏著劑層之離型薄膜的偏光板。此時，亦對於第1貼合步 驟或第2貼合步驟，剝離該離型薄膜，露出之黏著劑層提 供於其他光學薄膜、或光學薄片或光學顯示元件之貼合。 本發明的製造方法中，提供於引出步驟之長形光學薄 膜或長形光學薄片的1片含有選自以下（a)〜（e)中之 -9- 200937365 至少1種爲佳。 (a )環烯烴樹脂薄膜、 (b) 纖維素酯樹脂薄膜、 (c) 聚對苯二甲酸乙二醇酯樹脂薄膜、 (d) (甲基）丙烯酸樹脂薄膜、 (e) 聚丙烯樹脂薄膜。 本發明的製造方法中’第1貼合步驟中之長形光學薄 膜或長形光學薄片與其他長形光學薄膜或長形光學薄片0 貼合上使用紫外線硬化型樹脂黏著劑可作爲較佳形態之 1 ° 又’作爲藉由本發明的製造方法所製造之光學顯示面 板的代表例子’可舉出液晶面板，此時光學顯示元件爲液 晶顯示元件。 且’光學顯不兀件爲液晶顯不兀件時，該表裏（辨識 側與背光側）爲相異薄膜構成係爲一般情況，但亦具有該 一部份，例如亦具有將偏光薄膜成爲表裏共通化之優點。 〇 具體而言，於液晶顯示元件之辨識側偏光板上施予防眩處 理或防反射之處理等的表面處理，於背光側偏光板上，大 多賦予光擴散功能或亮度提高功能等固有功能，過去對於 如此要求，將成爲必要之光學薄膜或光學薄片以光學構件 製造公司進行層合，於面板加工製造公司收納產品後，將 構成表裏之偏光板的偏光薄膜作爲1種類，於此以液晶顯 示元件之表裏貼合作爲必要的相異光學薄膜或光學薄片， 可成爲再於液晶顯示元件上貼合之形態。 -10- 200937365 實施發明之最佳形態 本發明係爲於光學顯示元件上貼合具有光學功能之光 學薄片層合體而製造光學顯示面板之方法，大致分爲本發 明之第1製造方法與本發明之第2製造方法。且，本發明 所製造之光學顯示面板含有液晶面板、有機EL面板等， 如此光學顯示面板使用於液晶顯示裝置、有機EL顯示裝 置等.光學顯示裝置之製造上。以下舉出製造光學顯示面板 〇 中亦爲較佳的液晶面板之情況例子做說明，但本發明所製 造之光學顯示面板當然未限定於此。 圖1表示本發明之光學顯示面板的製造方法中，對於 第1製造方法之較佳例子的模型方式表示圖。本發明的第 1製造方法爲，含有由具有光學功能之至少2個長形光學 薄膜或其層合體之長形光學薄片所捲取的複數輥，引出長 形光學薄膜或長形光學薄片之引出步驟、與各貼合將經引 出之複數長形光學薄膜或長形光學薄片，形成長形光學薄 ® 片層合體之第1貼合步驟、與將長形光學薄片層合體直接 貼合於光學顯示元件之第2貼合步驟、與由前述長形光學 薄片層合體與光學顯示元件之貼合體，以光學顯示面板之 顯不區域以上’且全光學顯示面板面以下的區域，截斷長 形光學薄片層合體，成爲光學薄片層合體之截斷步驟。以 下，參照圖1下，詳細說明本發明的第1製造方法。 引出步驟爲首先，如圖1所示，由具有光學功能之至 少2個長形光學薄膜之層合體的長形光學薄片1、11經捲 取的引出輥2、12，各引出長形光學薄片丨、η，又具有 -11 - 200937365 光學功能之長形光學薄膜的層合體之其他長形光學薄片 3、13由引出輥4、14各引出的例子。 其中，圖2(a)表示圖1所示例子中，由引出輥2 被引出之長形光學薄片1的模型方式斷面圖，圖2(b) 表示由引出輥4被引出之長形光學薄片3的模型方式斷面 圖。本發明所使用的長形光學薄膜或其層合體之長形光學 薄片並無特別限定，但作爲形成於光學顯示元件7的一面 上經貼合之長形光學薄片層合體的長形光學薄膜、長形光 ❹ 學薄片，例如可舉出使用如圖2(a)所示，具有偏光薄 膜8、保護薄膜9及黏著劑層10之層合結構的長形光學 薄片1、與如圖2(b)所示，具有表面處理薄膜17與黏 著劑層18之層合結構的長形光學薄片3之情況例子。 又’作爲形成於光學顯示元件7之另一面上經貼合之長形 光學薄片層合體的長形光學薄膜、長形光學薄片，例如可 舉出與如圖2(a)所示例子相同，使用具有偏光薄膜、 保護薄膜及黏著劑層之層合結構的長形光學薄片n、與 ❹ 具有保護薄膜與黏著劑層之層合結構的長形光學薄片13 之情況例子。 繼續以第1貼合步驟貼合前述之經引出之長形光學薄 片1與長形光學薄片3，又貼合長形光學薄片n與長形 光學薄片13後，各形成長形光學薄片層合體。圖1表示 第1貼合輥5上壓著長形光學薄片1與長形光學薄片3， 又’於另一第1貼合輥15上壓著長形光學薄片11與長形 光學薄片13下各貼合所成之例子。 -12- 200937365 且，使用圖2所示結構之長形光學薄片時’於長形光 學薄片1的偏光薄膜8側上，配置長形光學薄片3之黏著 劑層1 8側，經由第1貼合步驟’以表面處理薄膜1 7、黏 著劑層18、偏光薄膜8、保護薄膜9、黏著劑層1〇之順 序進行層合而形成長形光學薄片層合體。另一方面，長形 光學薄片11之情況中，於偏光薄膜側配置長形光學薄片 13之黏著劑層側，經由第1貼合步驟以保護薄膜、黏著 〇 劑層、偏光薄膜、保護薄膜、黏著劑層之順序進行層合而 形成長形光學薄片層合體。 其次，對於第2貼合步驟，將貼合長形光學薄片1與 長形光學薄片3之長形光學薄片層合體、以及貼合長形光 學薄片11與長形光學薄片13之長形光學薄片層合體，各 貼合於光學顯示元件7上。圖1表示於第2貼合輥6，貼 合長形光學薄片1與長形光學薄片3之長形光學薄片層合 體於光學顯示元件7之一面上被壓著並貼合，又，於第2 © 貼合輥16,貼合長形光學薄片11與長形光學薄片13之 長形光學薄片層合體於光學顯示元件7之另一面上被壓著 並貼合的例子。且，使用圖2所示結構的長形光學薄片 時，於光學顯示元件7之一面上貼著的長形光學薄片層合 體，被貼合成以表面處理薄膜17、黏著劑層18、偏光薄 膜8、保護薄膜9、黏著劑層1〇之順序的層合結構中，黏 著劑層1 〇側被配置於光學顯示元件7側下進行貼合。 又，同樣地於光學顯示元件7的另一面上貼著的長形光學 薄片層合體被貼合成以保護薄膜、黏著劑層、偏光薄膜、 -13- 200937365 保護薄膜、黏著劑層的順序之層合結構中外側黏著劑層配 置於光學顯示元件7側。 且，雖省略圖示，但提供於第1貼合步驟之長形光學 薄膜或長形光學薄片，具有於第1貼合步驟欲貼合於其他 長形光學薄膜或長形光學薄片的黏著劑層或第2貼合步驟 中欲貼合於光學顯示元件7之黏著劑層時，例如具有圖2 (a)所示長形光學薄片1中之黏著劑層10或圖2(b) 所示長形光學薄片3中之黏著劑層18時，其黏著劑層表 〇 面上，貼合保護該黏著劑層表面直到對其他構件進行貼合 之離型薄膜爲一般方式。其中所謂離型薄膜，例如於如聚 對苯二甲酸乙二醇酯薄膜的透明樹脂薄膜表面上塗佈聚矽 氧樹脂等所成之離型劑者。而該離型薄膜爲貼合於其他構 件前被剝離除去。剝離除去離型薄膜之方式的具體例可參 考圖6，並於後述說明。 本發明的第1製造方法中，繼續進行的截斷步驟中， 自前述第2貼合步驟所得之長形光學薄片層合體與光學顯 〇 示元件7之貼合體，將長形光學薄片層合體截斷成光學顯 示面板之顯示區域以上，且全光學顯示面板面以下的區域 而成爲光學薄片層合體，得到最終製品之光學顯示面板 (無圖示）。 本發明的第1製造方法中，長形光學薄膜種類、長形 光學薄膜之數目、層合結構、長形光學薄膜、或引出長形 光學薄片之輥數等並未限定於圖1所示例子者。 例如，圖3表示本發明中第1製造方法的較佳其他例 -14- 200937365 子之模型方式表示圖。圖3爲除圖1所示例子的一部份 外其他與圖1相同，對於具有同樣構成的部分賦予相同 考符號，並省略說明。圖3所示例子爲，與圖1所示例 同樣下’由引出輥4引出長形光學薄片3所成以外，由 出輥22引出長形光學薄膜21，由引出輥24引出其他 形光學薄片23，且由引出輥26引出其他長形光學薄膜 而成。此時，例如作爲長形光學薄膜21使用偏光薄 〇 (例如剝離後述具有自身黏著性的剝離薄膜之狀態的偏 薄膜）’作爲長形光學薄片23使用紫外線硬化型樹脂 著劑所形成之黏著劑層與保護薄膜之層合物，作爲長形 學薄膜25使用黏著薄膜。如圖3所示例子中，於第1 合步驟中，由引出輥26所引出之長形光學薄膜25與由 出輥24所引出之長形光學薄片23藉由第1貼合輥27 行壓著而首先被貼合，於此由引出輥22所引出之長形 學薄膜21藉由其他第1貼合輥28進行壓著並貼合，且 ® 此由引出輥4所引出之長形光學薄片3藉由另一第1貼 輥5進行壓著並貼合後形成長形光學薄片層合體。 此時，長形光學薄片層合體例如以表面處理薄膜、 . 著劑層、偏光薄膜、黏著劑層、保護薄膜、黏著薄膜之 序進行層合，第2貼合步驟中，該黏著薄膜側配置於光 顯示元件7側，於光學顯示元件7之一面上進行貼著。 圖3所示例中，又與圖1所示例同樣地，自引出 14引出長形光學薄片13所成以外，自引出輥32引出 形光學薄膜31，自引出輥34引出其他長形光學薄膜 以 參 子 引 長 25 膜 光 黏 光 貼 引 進 光 於 合 黏 順 學 輥 長 3 3 -15- 200937365 所成。此時，例如作爲長形光學薄膜3 1使用偏光薄膜 (例如，如後述將具有自身黏著性的剝離薄膜進行剝離狀 態之偏光薄膜），作爲其他長形光學薄膜33使用黏著薄 膜。圖3所例中，第1貼合步驟中，自引出輥34所引出 之長形光學薄膜33與自引出輥32所引出之長形光學薄膜 31藉由第1貼合輥35被壓著而首先被貼合，於此自引出 輥14所引出之長形光學薄片13藉由其他第1貼合輥15 被壓著而貼合，形成長形光學薄片層合體。此時，長形光 Q 學薄片層合體，例如成爲保護薄膜、黏著劑層、偏光薄 膜、黏著薄膜之順序進行層合，以第2貼合步驟，該黏著 薄膜側配置於光學顯示元件7側，貼著於光學顯示元件7 之另一面。 又，例如圖4爲藉由本發明之第1製造方法的較佳另 一其他例子模型方式表示圖。圖4爲，除圖1、圖3所示 例的一部份以外爲相同，對於具有相同構成之部分，附上 同一參照符號，而省略說明。圖4所示例中，對於貼著於 Ο 光學顯示元件7之一面（圖之上側）的長形光學薄片層合 體，與圖3所示例相同地形成，但此與於光學顯示元件7 之另一面（圖之下側）上形成被貼著之長形光學薄片層合 體時，進一步使用自引出輥42所引出之長形光學薄片41 的觀點上爲相異。此時，作爲長形光學薄片41，例如使 用以紫外線硬化型樹脂黏著劑所形成之黏著劑層與保護薄 膜之層合物。圖4所示例中，對於第1貼合步驟，自引出 輥34所引出之長形光學薄膜33與自引出輥42所引出之 -16- 200937365 長形光學薄片41藉由第1貼合輥43被壓著並先貼合，於 此自引出輥32所引出之長形光學薄片31藉由其他第1貼 合輥35而被壓著並貼合，於此自引出輥14所引出之長形 光學薄片13藉由另一第1貼合輥15被壓著並貼合後，形 成長形光學薄片層合體。此時，長形光學薄片層合體，例 如以如保護薄膜、黏著劑層、偏光薄膜、黏著劑層、保護 薄膜、黏著薄膜之順序進行層合，於第2貼合步驟中，其 Ο 黏著薄膜側配置於光學顯示元件7側，貼著於光學顯示元 件7之另一面上。 其中雖省略圖示，但提供於第1貼合步驟之長形光學 薄膜或長形光學薄片，於第1貼合步驟中欲貼合於其他長 形光學薄膜或長形光學薄片而具有黏著劑層時、或於第2 貼合步驟中，欲貼合於光學顯示元件7而具有黏著劑層、 或以黏著薄膜本體構成1個長形光學薄膜時，於彼等黏著 劑層或黏著薄膜之表面上，欲直到對其他構件進行貼合 w 前，保護該黏著劑層或黏著薄膜之表面，一般貼合與前述 相同之離型薄膜。例如，圖3及圖4中，設置於長形光學 薄片3’欲貼合於長形光學薄膜21 (偏光薄膜）之黏著劑 - 層、或同樣地設置於長形光學薄片13，欲貼合長形光學 薄膜31(偏光薄膜）之黏著劑層、又圖3及圖4中，長 形光學薄膜25、33之該本體的黏著薄膜相當於前述黏著 劑層或黏著薄膜。而設置於黏著劑層或黏著薄膜表面之離 型薄膜於對其他構件進行貼合前被剝離除去。剝離除去離 型薄膜之方式的具體例可參照圖6並於後述說明。 -17- 200937365 且，一般紫外線硬化型樹脂黏著劑層於黏著處理之前 被塗佈。 又’圖5爲本發明之光學顯示面板的製造方法中，對 於第2製造方法的較佳一例的前半部分之模型方式表示 圖，圖6爲對於第2製造方法的較佳一例的後半部分之模 型方式表示圖。本發明的第2製造方法爲，含有自具有光 學功能之長形光學薄膜或該層合體之長形光學薄片經捲取 的複數輥，引出長形光學薄膜或長形光學薄片之引出步 0 驟、與將經引出之長形光學薄膜或長形光學薄片各貼合， 形成長形光學薄片層合體之第1貼合步驟、與截斷長形光 學薄片層合體，成爲光學薄片層合體之截斷步驟、與將前 述光學薄片層合體貼合於光學顯示元件之第2貼合步驟。 以下’一邊參照圖5及圖6，一邊對於本發明之第2製造 方法做詳細說明。 本發明的第2製造方法中之引出步驟及第1貼合步 驟，與前述第1製造方法中之引出步驟及第1貼合步驟相 © 同。圖5表示與圖1所示例相同，自引出輥2引出長形光 學薄片1，自引出輥4引出光學長形薄片3,於第1貼合 輥5被壓著並貼合之同時，自引出輥12引出長形光學薄 片11，自引出輥14引出長形光學薄片13，於第1貼合輥 15被壓著並貼合，形成各長形光學薄片層合體之例子。 且，作爲本發明的第2之製造方法中的長形光學薄膜或其 層合體之長形光學薄片，對於第1製造方法使用與上述相 同的長形光學薄膜或長形光學薄片。 -18- 200937365 本發明的第2製造方法中，將前述第1貼合步驟所得 之長形光學薄片層合體，繼續以截斷步驟進行截斷，作爲 光學薄片層合體。圖5表示長形光學薄片1與長形光學薄 片3之長形光學薄片層合體藉由截斷手段53進行截斷後 形成光學薄片層合體51，長形光學薄片11與長形光學薄 片13之長形光學薄片層合體藉由截斷手段54進行截斷而 形成光學薄片層合體52的例子。 〇 第2製造方法中之第2貼合步驟爲，將截斷步驟所得 之光學薄片層合體貼合於光學顯示元件，得到最終製品之 光學顯示面板。圖6表示，將圖5所示截斷步驟所得之光 學薄片層合體51於光學顯示元件7的一面上以第2貼合 輥55進行壓著的同時，將光學薄片層合體52於光學顯示 元件7之另一面上以第2貼合輥56進行壓著並貼合的例 子。其中，如前述，貼合於光學薄片層合體51的光學顯 示元件7之面、及貼合於光學薄片層合體52的光學顯示 〇 元件7之面上，設有黏著劑層’其表面以離型薄膜進行保 護爲一般例子。圖6表示一邊將該離型薄膜自光學薄片層 合體51、52剝離，一邊貼合於光學顯示元件7之例子。 即，該例子中，自貼合於光學薄片層合體51之光學顯示 元件7的面，藉由剝離輥57剝離離型薄膜59後，露出之 黏著劑層於光學顯示元件7之一面上以第2貼合輥55進 行壓著並貼合，同時自貼合於光學薄片層合體52之光學 顯示元件7的面，藉由剝離輥58剝離離型薄膜60後，於 露出之黏著劑層於光學顯示元件7之另一面上以第2貼合 -19- 200937365 輥56進行壓著並貼合。經剝離之離型薄膜，視必要可以 回收輥61、62進行捲取。且，圖6中，白色指示符號表 示光學顯示元件7及光學薄片層合體51、52的搬送方 向。 本發明的第2製造方法中，長形光學薄膜之種類、長 形光學薄膜之數目、層合結構、或引出長形光學薄膜或長 形光學薄片之輥的數目等，並非僅限定於圖5及圖6所示 例。 ❹ 對於前述本發明的第1製造方法及第2製造方法中任 一方法，各步驟皆於連續之製造步驟中進行。而所謂這些 第1製造方法或第2製造方法，因省略過去光學構件製造 公司中所進行的薄膜之貼合步驟、截斷步驟、捆包步驟及 對面板加工製造公司之產品搬送，故貼合於光學顯示面板 之光學薄膜可更清淨、減少缺陷。又，提高光學薄膜或其 層合體之光學薄片的產率，並亦具有提高製品利用效率之 效果。 ❹ 且’圖1、圖3〜圖5中雖無圖示，但於光學顯示元 件之一面上所貼合之光學薄片層合體所含的偏光薄膜、與 貼合於另一面之光學薄片層合體所含的偏光薄膜，必須被 配置成透過軸方向爲彼此垂直的關係。因此，當進行前述 本發明之第1製造方法或第2製造方法時，可使用例如特 開2005-374 1 7號公報的圖6所示之偏光板貼合裝置，第 1搬送部中，自供給部經供給、搬送的光學顯示元件的一 面上貼合長形光學薄片層合體（第1製造方法之情況）或 -20- 200937365 光學薄片層合體（第2製造方法之情況），於第1製造方 法之情況中，截斷長形光學薄片層合體後，將於反轉部自 第1搬送部所搬送之光學顯示元件進行上下反轉至反轉後 的光學顯示元件中之搬送方向側的端面對於搬送方向爲垂 直方式下運送至第2搬送部，第2搬送部中，於與第1搬 送部所搬送之光學顯示元件的搬送方向成直交之方向上所 搬送之光學顯示元件的另一面上可貼合長形光學薄片層合 〇 體或光學薄片層合體。 將該形態之槪要如圖7所示。即，圖7表示圖1所方 法的順序，但於光學顯示元件之一面上貼合光學薄片層合 體後，將該光學顯示元件進行上下反轉之同時，將該搬送 方向迴轉90度，於光學顯示元件之另一面上貼合其他光 學薄片層合體時的例子模式斜視圖。圖7中，對於具有與 圖1所示之相同構成的部分，附上相同參照符號，省略詳 細說明。 ® 圖7所示例子中’對於第1搬送部71，光學顯示元 件7於一方向被搬送之同時，實施該一面（圖中爲上側） 上，貼合依據本發明之第1貼合步驟所貼合之長形光學薄 片層合體的第2貼合步驟。其後，成爲經貼合之長形光學 薄片層合體藉由截斷手段74而截成適合光學顯示元件7 之尺寸’於光學顯示元件7之一面上貼合光學薄片層合體 之狀態。繼續於反轉部77，不會引起面內迴轉，將光學 顯示元件7進行上下反轉，送至第2搬送部72。藉此， 第2搬送部72中，光學顯示元件7之光學薄片層合體經 -21 - 200937365 貼合之面與未經貼合之面的關係，與第1搬送部71中之 關係成爲逆關係。圖示之例子中，於第1搬送部71中之 光學顯示元件7的上面貼合光學薄片層合體，藉由上下反 轉’於第2搬送部72中，光學薄片層合體之經貼合的面 成爲光學顯示元件7之下面。 而第2搬送部72中，光學顯示元件7之搬送方向與 第1搬送部71中的搬送方向以面內成90度迴轉之狀態。 即，光學顯示元件7的第1搬送部71中之搬送方向側的 ❹ 端面經反轉後，使其上下反轉至對於第2搬送部72中之 搬送方向成直交後送至第2搬送部72。於第2搬送部72 中，再次實施對於光學顯示元件7的其他面（第1搬送部 71中之長形光學薄片層合體未經貼合之面）上，貼合以 依據本發明之第1貼合步驟經貼合之長形光學薄片層合體 的其他第2貼合步驟。其後，經貼合之長形光學薄片層合 體，藉由截斷手段75截成適合光學顯示元件7之尺寸， 成爲於光學顯示元件7之兩面上貼合光學薄片層合體之狀 ❹ 態。 圖7所示例子中，第1搬送部71中，自引出輥2所 引出之長形光學薄片1、與自引出輥4所引出之長形光學 薄片3，藉由第1貼合輥5進行壓著貼合，成爲如送至光 學顯示元件7之一面上，與至今於圖1的上側所示狀態相 同。又，第2搬送部72中’自引出輥12所引出之長形光 學薄片11、自引出輥14所引出之長形光學薄片13，藉由 其他第1貼合輥15進行壓著貼合’成爲如送至光學顯示 -22- 200937365 元件7的另一面上，與至今於圖1的下側所示狀態相同。 光學顯示元件7爲液晶顯示元件（液晶胞）時，於該 兩面上，貼合含各偏光薄膜之光學薄片層合體。圖1中， 長形光學薄片1及長形光學薄片11表示各含有偏光薄膜 之例子。而於液晶顯示元件之表裏經配置之偏光薄膜大多 被配置成各吸收軸成直交之關係。僅採用圖7所示形態， 由以上說明可得知，配置於液晶顯示元件之表裏的偏光薄 〇 膜之吸收軸成爲直交關係。於圖7中，白色指示符號表示 搬送方向。 且，參照以上圖1及圖3〜圖7之說明中，將光學顯 示元件7爲液晶顯示元件（液晶胞）之情況作爲例子，表 示於該兩面各貼合光學薄片層合體之例子，但例如光學顯 示元件7爲EL顯示元件之情況時，該單面，即於辨識側 顯示面貼合光學薄片層合體即可之事實，斯業者可容易理 解。 〇 對於前述本發明之製造方法中，提供於引出步驟之長 形光學薄膜或長形光學薄片係以含有由聚乙烯醇樹脂薄膜 所成之偏光薄膜者爲佳。聚乙烯醇樹脂係由將聚乙酸乙烯 酯樹脂經鹼化而得。作爲聚乙酸乙烯酯樹脂，可舉出乙酸 乙烯酯之單獨聚合物的聚乙酸乙烯酯以外，亦可舉出乙酸 乙烯酯與於此可共聚合之其他單體的共聚合物等。 作爲乙酸乙烯酯與可共聚合之其他單體，例如可舉出 不飽和羧酸類、乙烯、丙烯等烯烴類、乙烯醚類、不飽和 磺酸類、具有銨基之丙烯醯胺類等。 -23- 200937365 聚乙烯醇樹脂之鹼化度一般爲85〜100莫耳％，較佳 爲98莫耳％以上。這些聚乙烯醇樹脂即使變性亦可，例 如可使用以醛類變性之聚乙烯醇縮甲醛、聚乙烯醇縮乙 醛、聚乙烯醇縮丁醛等。又，聚乙烯醇樹脂之聚合度，一 般爲1000〜10000之範圍內，較佳爲1500〜5000之範圍 內。 將該聚乙烯醇樹脂作爲製膜者，可作爲偏光薄膜之捲 取（ROLLED WEB )薄膜使用。製膜聚乙烯醇樹脂之方 0 法’並無特別限定，可依據過去公知之適宜方法進行製 膜。自聚乙烯醇樹脂之捲取薄膜的膜厚並無特別限定，例 如爲10〜150μιη之程度。 偏光薄膜，一般爲經由將聚乙烯醇樹脂薄膜以二色性 色素進行染色後吸附該二色性色素之步驟（染色處理步 驟）、將二色性色素經吸附之聚乙烯醇樹脂薄膜以硼酸水 溶液進行處理之步驟（硼酸處理步驟）、及藉由該硼酸水 溶液之處理後進行水洗之步驟（水洗處理步驟）而製造。 〇 又’製造偏光薄膜時，一般聚乙烯醇樹脂薄膜經一軸 延伸’但該一軸延伸可於染色處理步驟前進行、或亦可於 染色處理步驟中進行、或可於染色處理步驟後進行。一軸 延伸於染色處理步驟後進行時，該一軸延伸亦可於硼酸處 理步驟前進行，或可於硼酸處理步驟中進行。當然這些幾 項階段下可進行一軸延伸。一軸延伸可以周速相異的輥間 延伸爲一軸、或使用熱輥延伸爲一軸。又，亦可爲大氣中 進行延伸之乾式延伸，或可於溶劑中使其膨潤之狀態下進 -24- 200937365 行延伸的濕式延伸。延伸倍率，一般爲3〜8倍程度。 藉由染色處理步驟中之聚乙烯醇樹脂薄膜的二色性色 素之染色，例如藉由將聚乙烯醇樹脂薄膜含浸於含有二色 性色素之水溶液下而進行。作爲二色性色素’例如可使用 碘、二色性染料等。二色性染料中例如包含c.l.DIRECT RED 39等二疊氮化合物所成之二色性直接染料、三疊 氮、四疊氮等化合物所成之二色性直接染料。且，聚乙烯 〇 醇樹脂薄膜於染色處理前施予對水之浸漬處理爲佳。 作爲二色性色素使用碘時，一般採用於含有碘及碘化 鉀之水溶液中，含浸聚乙烯醇樹脂薄膜的染色之方法。該 水溶液中之碘含有量一般爲每水100重量份中爲0.01〜1 重量份，碘化鉀之含有量一般爲每水100重量份中爲0.5 〜20重量份。作爲二色性色素使用碘時，使用於染色之 水溶液的溫度，一般爲20〜40°C，又對該水溶液之浸漬時 間（染色時間）一般爲20〜1800秒。 ® 一方面，作爲二色性色素使用二色性染料時，一般於 含有水溶液二色性染料的水溶液中，含浸聚乙烯醇樹脂薄 . 膜之染色方法。該水溶液中之二色性染料的含有量，一般 爲每水100重量份，爲lxl0·4〜1〇重量份’較佳爲 1χ1(Γ3〜1重量份，特佳爲1χ10·3〜ιχ10_2重量份。該水 溶液可含有硫酸鈉等無機鹽作爲染色助劑。作爲二色性色 素使用二色性染料時，使用於染色之染料水溶液的溫度， 一般爲20〜80 °C，又，對該水溶液之浸漬時間（染色時 間）一般爲10〜18〇〇秒。 -25- 200937365 硼酸處理步驟爲將藉由二色性色素進行染色之聚乙烯 醇樹脂薄膜含浸於含有硼酸之水溶液下進行。含有硼酸之 水溶液中之硼酸的量每水100重量份，一般爲2〜15重量 份，較佳爲5〜12重量份。 作爲前述染色處理步驟中之二色性色素，使用碘時， 使用於該硼酸處理步驟中之含有硼酸的水溶液爲含有碘化 鉀爲佳。此時，含有硼酸之水溶液中的碘化鉀之量爲每水 100重量份中，一般爲〇·1〜15重量份，較佳爲5〜12重 〇 量份。對含有硼酸之水溶液的浸漬時間，一般爲60〜 1200秒，較佳爲150〜600秒，更佳爲200〜400秒。含 有硼酸之水溶液的溫度，一般爲50°C以上，較佳爲50〜 8 5 °C，更佳爲6 0〜8 0 °C。 繼續於水洗處理步驟中’將前述硼酸處理後的聚乙烯 醇樹脂薄膜，例如藉由含浸於水中進行水洗處理。水洗處 理中之水溫度一般爲5〜40°C，浸漬時間一般爲1〜120 秒。水洗處理後施予一般乾燥處理，得到偏光薄膜。乾燥 © 處理，例如使用適當的熱風乾燥機、遠紅外線加熱器等而 進行。乾燥處理之溫度，一般爲30〜100 °C，較佳爲50〜 8〇 °C。乾燥處理之時間’ 一般爲60〜600秒，較佳爲120 〜6 0 0秒。 本發明的製造方法中’供給於引出步驟的長形光學薄 膜或長形光學薄片，含有如前述之偏光薄膜者爲佳，作爲 含有偏光薄膜之長形光學薄片（偏光板），具體可舉出如 下者。 -26- 200937365 與保 、 之 膜成 薄所 UU 旨 ^ OHM 偏樹 之性 成塑 所熱 膜之 薄著 脂貼 樹所 醇上 稀面 乙一 聚少 由至、 有的板 具膜光 } 薄偏 A 光的 C 偏膜 該薄 由護 _ (B)具有聚乙烯醇樹脂薄膜所成之偏光薄膜、由該 偏光薄膜之至少一面上所形成之黏著劑層、與保護該黏著 劑層之離型薄膜的偏光板、 (C) 具有由聚乙烯醇樹脂薄膜所成之偏光薄膜、由 © 該偏光薄膜的一面上所貼著之熱塑性樹脂所成之保護薄 膜、於偏光薄膜之另一面上所形成之黏著劑層、與保護該 黏著劑層之離型薄膜的偏光板、 (D) 具有由聚乙烯醇樹脂薄膜所成之偏光薄膜、由 該偏光薄膜的一面上所貼著之熱塑性樹脂所成之保護薄 膜、於保護薄膜的外面所形成之黏著劑層、與保護該黏著 劑層之離型薄膜的偏光板。 彼等中，具有（B)〜（D)之離型薄膜的偏光板 ❹ 中，該離型薄膜於第1貼合步驟或第2貼合步驟中，該離 型薄膜被剝離，露出之黏著劑層提供於對其他光學薄膜、 或光學薄片或光學顯示元件之貼合。 對於如前述之偏光板，由前述熱塑性樹脂所成之保護 薄膜，例如可爲（a)環烯烴樹脂薄膜、（b)纖維素酯樹 脂薄膜、（c)聚對苯二甲酸乙二醇酯樹脂薄膜、（d) (甲基）丙烯酸樹脂薄膜、（e)聚丙烯樹脂等。這些熱 塑性樹脂薄膜爲，貼著於偏光薄膜之至少一面上，成爲長 形光學薄片（偏光板）之狀態下，可提供於引出步驟以 -27- 200937365 外，這些熱塑性樹脂薄膜可單獨下作爲長形光學薄膜，提 供於引出步驟，於第1貼合步驟中，可如貼合於偏光薄膜 的至少一面上亦可。對於這些熱塑性樹脂薄膜，於以下做 進一步詳細說明。 (a )環烯烴樹脂薄膜 於本發明的製造方法所使用的環烯烴樹脂爲，例如具 有如降莰烯、多環降莰烯單體之環狀烯烴（環烯烴）所成 之單體的單位之熱塑性樹脂（亦稱爲熱塑性環烯烴樹 ❹ 脂）。本發明中，環烯烴樹脂爲，使用前述環烯烴的開環 聚合物或2種以上環烯烴之開環共聚合物的氫化物亦可， 亦可爲與具有環烯烴與鏈狀烯烴、乙烯基等芳香族化合物 等之加成聚合物。又，導入極性基者亦爲有效。 使用與具有環烯烴與鏈狀烯烴或/及乙烯基之芳香族 化合物的共聚合物時，作爲鏈狀烯烴可舉出乙烯、丙烯 等’又作爲具有乙嫌基之芳香族化合物，可舉出苯乙嫌、 α-甲基苯乙烯、核烷基取代苯乙烯等。對於如此共聚合 〇 物，亦可爲環烯烴所成之單體的單位50莫耳％以下（較 佳爲15〜50莫耳％ )。特別爲使用具有環烯烴與鏈狀烯 烴與乙烯基之芳香族化合物的三元共聚合物時，由環烯烴 所成之單體的單位，可如上述的比較少量。對於該三元共 聚合物，由鏈狀烯烴所成之單體之單位，一般爲5〜80莫 耳％，由具有乙烯基之芳香族化合物所成之單體的單位， 一般爲5〜8 0莫耳％。 環烯烴樹脂可使用適宜之販賣品，例如可使用Topas -28- 200937365 (Ticona 公司製）、亞頓（JSR (股）製）、ZEONOR (曰本 ΖΕΟΝ (股）製）、ZEONEX ( ΖΕΟΝΕΧ )(日本 zeon (股）製）、appel (三井化學（股）製）等。將如 此環烯烴樹脂經製膜成爲薄膜時，適用溶劑澆鑄法、熔融 壓出法等公知方法。又，例如亦可使用na (積水化學工 業（股）製）、SCA40 (積水化學工業（股）製）、 ZEONOR薄膜（（股）OPTES製）等預先經製膜之環烯烴 © 樹脂製的薄膜販賣品。 環烯烴樹脂薄膜可爲經一軸延伸或二軸延伸者。藉由 延伸，可對環烯烴樹脂薄膜賦予任意相位差値。延伸，一 般爲一邊般將薄膜輥捲出一邊連續進行，於加熱爐中，輥 之進行方向、與該進行方向呈垂直之方向、或往該兩方進 行延伸。加熱爐之溫度，一般採用自環烯烴樹脂之玻璃轉 移溫度附近至玻璃轉移溫度+100 °C的範圍。延伸之倍率一 般爲1.1〜6倍，較佳爲1.1〜3.5倍。 ® 環烯烴樹脂薄膜爲輥狀態時，薄膜彼此會黏著而有著 容易產生結塊之傾向，故一般爲貼合保護薄膜後進行輥捲 . 取。又，環烯烴樹脂薄膜一般爲表面活性較差，故偏光薄 膜與被黏著之表面上，施予等離子處理、電暈處理、紫外 線照射處理、火焰處理、鹼化處理等表面處理爲佳。其中 亦以比較容易實施的等離子處理、電暈處理爲佳。 使用如此環烯烴樹脂薄膜時，與使用於過去液晶面板 等光學顯示面板的偏光板，於結果上會成爲相同構成，所 得之光學顯示面板的品質或製品利用效率被提高。 -29- 200937365 (b) 纖維素酯樹脂薄膜 又，本發明的製造方法所使用的纖維素酯樹脂薄膜 爲，纖維素的部分或完全酯化物之薄膜，例如可舉出由纖 維素之乙酸酯、丙酸酯、酪酸酯、彼等混合酯等所成之薄 膜。更具體可舉出三乙醯基纖維素薄膜、二乙醯基纖維素 薄膜、纖維素乙酸酯丙酸酯薄膜、纖維素乙酸酯丙酸酯薄 膜等。作爲如此纖維素酯樹脂薄膜，可使用適宜販賣品， 例如可使用 fujitacTD80 (富士軟片（股）製）、 ◎ fujitacTD80UF (富 士軟片（股）製）、fujitacTD80UZ (富 士軟片（股）製）、KC8UX2M ( Konicaminolta (股）製）、KC8UY ( Konicaminolta (股）製）等。 又，本發明的製造方法中，亦可使用賦予相位差特性 的纖維素酯樹脂薄膜，作爲賦予相位差特性之纖維素酯樹 脂薄膜的販賣品，可舉出WV BZ 43 8 (富士軟片（股） 製）、KC4FR-1 ( Konicaminolta (股）製）等。且，亦可 使用面內或/及厚度方向之相位差値於實質上爲可被忽略 & 程度之極小値的纖維素酯樹脂薄膜，作爲如此實質上無定 向的纖維素酯樹脂薄膜之販賣品，可舉出 KC4UEW (Κ ο n i c a m i η ο 11 a (股）製）等。 使用如此纖維素酯樹脂薄膜時，與使用於過去液晶面 板等光學顯示面板的偏光板，於結果上會成爲相同構成， 所得之光學顯示面板的品質或製品利用效率被提高。 (c) 聚對苯二甲酸乙二醇酯樹脂薄膜 -30- 200937365 所謂聚對苯二甲酸乙二醇酯爲，重複單位之80莫耳 %以上爲對苯二甲酸乙二醇酯所構成之樹脂。作爲其他共 聚合成分，例如可舉出間苯二甲酸、Ρ-β-氧基乙氧基安息 香酸、4,4’-二羧基二苯酚、4,4’-二羧基二苯酮、雙（4_羧 基苯基）乙烷、己二酸、癸二酸、5-鈉硫代間苯二甲酸、 1,4-二羧基環己烷等二羧酸成分’例如可舉出丙二醇、丁 二醇、新戊二醇、二乙二醇、環己二醇、雙酚Α的環氧 〇 乙烷加成物、聚乙二醇、聚丙二醇、聚四甲二醇等二醇成 分。這些二羧酸成分或甘醇成分，視必要可組合2種以上 後使用。又，與前述二羧酸成分或甘醇成分同時，可倂用 P-氧基安息香酸等氧基羧酸。如此其他共聚合成分亦可爲 含有包含少量醯胺鍵、尿烷鍵、醚鍵、碳酸酯鍵等化合物 者。 作爲聚對苯二甲酸乙二醇酯之製造法，可適用將對苯 二甲酸與乙二醇進行直接反應之所謂的直接聚合法、將對 ® 苯二甲酸之二甲基酯與乙二醇進行酯交換反應之所謂的酯 交換反應等任意製造法。又，公知的添加劑可視必要下含 有。例如可含有滑劑、結塊防止劑、熱安定劑、抗氧化 劑、防靜電劑、耐光劑、耐衝撃性改良劑等。但，於光學 用途中，因透明性爲必要，故添加劑之添加量控制至最小 限爲佳。 對於製造本發明所使用的聚對苯二甲酸乙二醇酯薄膜 的方法，並無特別限定，但可舉出將原料樹脂之聚對苯二 甲酸乙二醇酯進行熔融，將壓出成形爲薄片狀的無定向薄 -31 - 200937365 膜於玻璃轉移溫度以上之溫度中，以拉幅器進行橫延伸 後，施予熱固定處理之方法。延伸溫度爲80〜13(TC，較 佳爲90〜120 °C，延伸倍率爲2.5〜6倍，較佳爲3〜5.5 倍。延伸倍率變低時，薄膜之透明性會不良故不佳。 且，由減低聚對苯二甲酸乙二醇酯薄膜中之定向主軸 的變形之觀點來看，前述橫延伸後且爲進行熱固定處理 前’將薄膜於長方向施予鬆弛處理者爲佳。鬆驰處理之溫 度爲90〜200°C，較佳爲120〜180°C。鬆弛量依橫延伸條 © 件而不同，但設定鬆弛量及溫度使鬆弛處理後之薄膜於 1 5 0°C中之熱收縮率爲2%以下爲佳。 熱固定處理之溫度，一般爲180〜250 °C，較佳爲200 〜245 °C。熱固定處理爲，首先於一定長度以前述溫度下 進行處理，且施予鬆驰處理至於薄膜之寬方向中之鬆弛比 率爲1〜1 0% (較佳爲2〜5 % )爲佳。如此減少定向主軸 之變形，可得到耐熱性優良的經一軸延伸之聚對苯二甲酸 乙二醇酯薄膜。本發明中，使用定向主軸之應變最大値爲 © 1 〇度以下，較佳爲8度以下，更佳爲5度以下之聚對苯 二甲酸乙二醇酯薄膜。使用定向主軸之應變最大値超過 10度的聚對苯二甲酸乙二醇酯薄膜，使用如此聚對苯二 甲酸乙二醇酯薄膜將偏光板貼合於液晶顯示裝置之液晶顯 示畫面時，會有著色不良之傾向。且，對於上述聚對苯二 甲酸乙二醇酯薄膜中之定向主軸的應變最大値，例如可使 用相位差薄膜検査裝置RETS系統（大塚電子（股）製） 進行測定。 -32- 200937365 聚對苯二甲酸乙二醇酯薄膜之厚度爲20〜60μιη程 度。該薄膜以面內相位差値R0爲lOOOnm以上者爲佳， 以3 000nm以上者爲更佳。 且，聚對苯二甲酸乙二醇酯薄膜中可賦予霧値，作爲 賦予霧値之方法，例如可舉出於原料樹脂中混合無機微粒 子或有機微粒子之方法、於前述薄膜表面上將無機微粒子 或有機微粒子混合於樹脂膠黏劑的塗佈液塗佈方法等，但 〇 未僅限定於此。作爲前述無機微粒子，可使用二氧化矽、 膠體二氧化矽、氧化鋁、氧化鋁溶膠、鋁矽酸鹽、氧化鋁 一二氧化矽複合氧化物、陶土、滑石、雲母、碳酸鈣、磷 酸鈣等作代表者。又作爲前述有機微粒子可使用交聯聚丙 烯酸粒子、交聯聚苯乙烯粒子、交聯聚甲基甲基丙烯酸酯 粒子、聚矽氧樹脂粒子、聚醯亞胺粒子等耐熱性樹脂粒 子。 兼備前述特性之聚對苯二甲酸乙二醇酯薄膜的機械性 ® 質、耐溶劑性、耐刮傷性、成本等優良。使用如此聚對苯 二甲酸乙二醇酯樹脂薄膜時，與使用於過去液晶面板等光 學顯示面板的偏光板比較，有著可得到較薄，且具有同等 以上之強度的偏光板之效果。 且，使用聚對苯二甲酸乙二醇酯薄膜時，與該聚對苯 二甲酸乙二醇酯薄膜之偏光薄膜貼著之面爲相反的面上， 亦可施予防眩處理、硬塗佈處理、防靜電處理等表面處 理。又，亦可形成由液晶性化合物或其高分子量化合物等 所成之塗佈層。且’取代聚對苯二甲酸乙二醇酯薄膜，亦 -33- 200937365 可使用聚萘二甲酸乙二醇酯薄膜。 (d)(甲基）丙烯酸樹脂薄膜 作爲（甲基）丙烯酸樹脂之薄膜，可舉出各單獨使用 丙烯酸樹脂或甲基丙烯酸樹脂或組合後使用，視必要混合 丙烯酸橡膠粒子等，經熔融混煉後所得之丙烯酸樹脂材料 藉由熔融壓出法而成形爲薄膜狀者。（甲基）丙烯酸樹脂 中，可含有一般的添加劑，例如紫外線吸收劑、有機染 料、顏料、無機色素、抗氧化劑'防靜電劑、界面活性劑 © 等。 (甲基）丙烯酸樹脂的薄膜可與具有谷內散射之層或 賦予谷外散射之層等組合作爲多層結構。欲賦予散射特性 時，混合微粒子，進行熔融混煉即可。（甲基）丙烯酸樹 脂的薄膜設置於液晶面板的辨識側時，其表面上，施予表 面處理（硬塗佈層、防眩層、防反射層、防污層、防靜電 層等）爲佳。 使用如此（甲基）丙烯酸樹脂薄膜時，與使用於過去 Ο 液晶面板等光學顯示面板的偏光板比較，於得到表面硬度 或剛性優良的偏光板上具有效果。 (e )聚丙烯樹脂薄膜 本發明的製造方法所使用的聚丙烯樹脂爲，主要由丙 烯單位所成之樹脂，一般爲結晶性者，除丙烯之單獨聚合 物以外，亦可爲丙烯與於此可共聚合之共單體的共聚合 物。經丙烯共聚合之共單體，例如可爲乙烯、或碳原子數 4〜20之α-烯烴。 -34- 200937365 使用聚丙烯樹脂薄膜時’該聚丙烯樹脂薄膜於20°c之 二甲苯可溶分爲1重量％以下，較佳爲〇·8重量％以下’ 更佳爲0.5重量％以下。聚丙烯樹脂薄膜的二甲苯可溶分 超過1重量％時，偏光板於高溫環境下曝曬會產生聚丙烯 樹脂薄膜表面之白化，偏光板之透過率會顯著降低。如此 高溫環境下之聚丙烯樹脂薄膜表面的白化’可推測爲該樹 脂薄膜中所存在之低分子量成分的滲漏所造成。若舉出如 〇 此低分子量成分之典型例子，並無特別限定’例如可舉出 無規立體性低分子量寡聚物等。 聚丙烯樹脂薄膜的二甲苯可溶分（重量％)可如下進 行測定。即，首先將丙烯樹脂薄膜5g沸騰後添加二甲苯 50〇mi，完全溶解後，降溫至20°C，於20°C保持4小時。 繼續過濾該二甲苯液並分離析出物與濾液，自濾液除去溶 劑，且藉由減壓下以70°C進行乾燥，可得到經乾固之二甲 苯溶解成分。二甲苯可溶分可由以下式求得。 ❹ 二甲苯可溶分〔重量％〕=(經乾固之二甲苯溶解成 • 分的重量〔g〕）/ ( 5〔 g〕）χΙΟΟ 作爲構成前述聚丙烯樹脂薄膜之聚丙烯樹脂，使用二 甲苯可溶分較佳爲1重量％以下，更佳爲0.8重量％以 下’特佳爲0.5重量％以下之聚丙烯樹脂。聚丙烯樹脂的 =甲苯可溶分之測定方法，與前述聚丙烯樹脂薄膜之情況 相同。聚丙烯樹脂可爲藉由丙烯之單獨聚合物所得之聚丙 -35- 200937365 烯樹脂、或丙烯與於此可共聚合之其他單體之共聚合物。 又，亦可倂用此等。 作爲於丙烯可共聚合之其他單體，例如可舉出乙烯、 α-烯烴。作爲α_烯烴，使用碳數4以上之α_烯烴爲佳， 較佳爲碳數4〜1〇的α_烯烴。若舉出碳數4〜1〇之心烯 烴的具體例，例如可舉出1-丁烯、1-戊烯、；!·己烯、卜庚 烯、1-辛烯、1-癸烯等直鏈狀單烯烴類；3-甲基-丨_ 丁烯、 3-甲基-1-戊烯、4-甲基-1-戊烯等分支狀單烯烴類；乙烯 © 環己烷等。丙烯與於此可共聚合之其他單體的共聚合物可 爲無規共聚合物、或嵌段共聚合物。 作爲聚丙烯樹脂使用前述共聚合物之情況中，因較容 易得到二甲苯可溶分爲丨重量％以下的聚丙烯樹脂，故與 丙烯共聚合的其他單體之共聚合比率以8重量％以下時爲 佳’以4重量％以下時爲更佳。且，共聚合物中來自其他 單體的構成單位之含有率可依據「高分子分析手冊」 (1995年，紀伊國屋書店發行）的第616頁所記載之方 © 法’進行紅外線（IR )光譜測定而求得。 前述中’亦以作爲構成聚丙烯樹脂薄膜之聚丙烯樹 脂，使用丙烯的單獨聚合物、丙烯一乙烯無規共聚合物、 丙烯-1-丁烯無規共聚合物及丙烯一乙烯-卜丁烯無規共聚 合物爲佳。這些單獨聚合物及共聚合物可藉由適當聚合觸 媒的選擇等，較容易得到二甲苯可溶分減低的聚合物。特 別爲丙烯之單獨聚合物，有著可較容易得到二甲苯可溶分 減低的聚合物之傾向。 -36- 200937365 又，構成聚丙烯樹脂薄膜之丙烯樹脂的立體規則性， 實質上以整規型態或間規型態爲佳。實質上由具有整規型 態或間規型態之立體規則性的聚丙烯樹脂所成之聚丙烯樹 脂薄膜，其處理性比較良好之同時，高溫環境下之機械強 度亦優良。又，具有如此立體規則性之聚丙烯樹脂，於該 聚合階段中，較少產生成爲偏光板白化原因之無規立體性 低分子量成分，容易得到高溫環境下透過率之降低受到抑 © 制的偏光板。 作爲使聚丙烯樹脂的二甲苯可溶分降低至1重量％以 下的方法，無特別限定，例如可舉出聚合階段中提高聚丙 烯樹脂之聚合度，相對地降低低分子量成分的比率之方 法、將藉由聚合所得之聚丙烯樹脂以溶劑洗淨，將低分子 量成分等溶劑可溶成分萃取除去的方法及這些方法之組合 等斯業者爲公知方法。且，例如適當地選擇聚合用觸媒， 將聚丙烯樹脂的立體規則性控制爲整規型態或間規型態、 〇 及/或藉由以丙烯單獨進行聚合等所得之聚丙烯樹脂的二 甲苯可溶分成爲1重量％以下時，降低由聚合所得之丙烯 樹脂的二甲苯可溶分的處理爲非必要。 作爲聚丙烯樹脂的製膜方法，並無特別限定，可舉出 由熔融樹脂之壓出成形法'將溶解於有機溶劑之樹脂流延 於平板上，除去溶劑後製膜的溶劑澆鑄法等，由生產性之 觀點來看，使用壓出成形法爲佳。此時，聚丙烯樹脂係以 JIS K 7210爲準，以溫度23 0°c，荷重21.18N下所測定之 熔融指數（MFR)於0.1〜200 g/10分鐘範圍內爲佳’以 -37- 200937365 0.5〜50 g/10分鐘範圍內爲較佳。藉由使用MFR於該範圍 內的聚丙烯樹脂，不會對壓出機造成過大負荷，可得到均 勻之聚丙烯樹脂薄膜。 本發明所使用的聚丙烯樹脂薄膜以透明性優良者爲 佳，具體爲依據JIS K 7105所測定之全霧値爲10%以 下，較佳爲7%以下。又，由聚丙烯樹脂薄膜所成之保護 薄膜的厚度以5〜200μιη程度爲佳。較佳爲ΙΟμηι以上’ 又更佳爲150μπι以下。 © 聚丙烯樹脂薄膜可爲藉由一軸延伸或二軸延伸所得 者。藉由延伸，於聚丙烯樹脂薄膜可賦予任意相位差値。 延伸一般爲將薄膜輥一邊捲取一邊連續進行，於加熱爐、 輥的進行方向、與該進行方向爲垂直之方向、或往該兩方 向進行延伸。加熱爐之溫度一般採用聚丙烯樹脂之玻璃轉 移溫度附近至玻璃轉移溫度+100 °C之範圍。延伸之倍率一 般爲1.1〜6倍，較佳爲1.1〜3.5倍。 聚丙烯樹脂薄膜爲輥狀態時，薄膜彼此黏著而有著容 〇 易產生結塊之傾向，一般爲貼合保護薄膜後進行輥捲。 又，環烯烴樹脂薄膜一般爲表面活性較差，故於與偏光薄 膜黏著之表面上，進行等離子處理、電暈處理、紫外線照 射處理、火焰處理、鹼化處理等表面處理爲佳。其中以較 容易實施的等離子處理、電暈處理爲佳。 使用如此聚丙烯樹脂薄膜時，與使用於過去液晶面板 等光學顯示面板的偏光板，於結果上會成爲相同構成，所 得之光學顯示面板的品質或製品利用效率被提高。 -38- 200937365 如以上之環烯烴樹脂薄膜、纖維素酯樹脂薄膜、聚對 苯二甲酸乙二醇酯樹脂薄膜、（甲基）丙烯酸樹脂薄膜、 或聚丙烯樹脂薄膜作爲偏光薄膜的保護薄膜使用時爲佳， 其他亦可作爲聚碳酸酯樹脂薄膜或聚丙烯樹脂薄膜、偏光 薄膜的保護薄膜使用。 又，本發明的製造方法中，偏光薄膜的至少一面上， 預先層合具有自身黏著性的剝離薄膜，使用時剝離該剝離 © 薄膜後而可使用偏光薄膜亦佳。作爲如此剝離薄膜，可舉 出以聚乙烯樹脂、聚丙烯樹脂所形成之薄膜。作爲具有如 此自身黏著性的剝離薄膜的較佳販賣品，例如可舉出由 Toray (股）購得之聚乙嫌樹脂所成之「Toraytec」、由 (股）Sun A化硏購得之「Sunytect」等。且，該剝離薄 膜爲魚眼等缺陷較少者爲佳。因爲使用具有如此缺陷的剝 離薄膜時，於偏光薄膜會轉印形狀，成爲偏光子之缺陷。 且，本發明之製造方法中，於偏光板之光學顯示元件 〇 的對面側與反對面，可貼合具有防眩功能、反射防止功 能、硬度上昇功能、亮度提高功能等之各種功能性的光學 . 薄膜或光學薄片。 作爲具有如此光學功能性的長形光學薄膜或長形光學 薄片，例如可舉出於基材表面塗佈液晶性化合物，被定向 之光學補償薄膜，透過某種偏光光，反射顯示與此相反性 質的偏光光的反射型偏光薄膜、聚碳酸酯樹脂所成之相位 差薄膜、環狀聚烯烴樹脂所成之相位差薄膜、於表面具有 凹凸形狀之附有防眩功能之薄膜、附有表面反射防止功能 -39- 200937365 之薄膜、於表面具有反射功能之反射薄膜、同時具有反射 功能與透過功能之半透過反射薄膜等。於基材表面塗佈液 晶性化合物，作爲相當於經定向的光學補償薄膜之販賣 品，可舉出WV薄膜（富士軟片（股）製）、NH薄膜 (新日本石油（股）製）、NR薄膜（新日本石油（股） 製）等。作爲相當於透過某種偏光光，反射與此顯示相反 性質之偏光光的反射型偏光薄膜之販賣品，例如可舉出 DBEF (3M公司製，日本可由住友3M (股）購入）、 © APF (3M公司製，日本可由住友3M (股）購入）等。 又，作爲相當於由環狀聚烯烴樹脂所成之相位差薄膜的販 賣品，例如可舉出亞頓薄膜（JSR (股）製）、Escena (積水化學工業（股）製）、ZEONOR薄膜（（股） OPTES 製）等。 且，又本發明的製造方法中，使經貼合之長形光學薄 膜的至少1片上，含有黏著薄膜及/或黏著薄膜者爲佳。 又，於第1貼合步驟或第2貼合步驟之前，亦可於長形光 Ο 學薄膜、長形光學薄片或長形光學薄片層合體藉由塗佈裝 置形成黏著劑層及/或黏著劑層。 本發明的製造方法中，作爲使用於黏著薄膜或黏著劑 層的黏著劑（感壓黏著劑），並無特別限定，例如可舉出 過去公知的將丙烯酸樹脂、尿烷樹脂、天然或合成橡膠樹 脂、乙烯醚樹脂、或聚矽氧樹脂作爲主成分的黏著劑，由 抗氣候性優良之觀點來看，上述中亦以丙烯酸樹脂或尿烷 樹脂作爲主成分者爲佳，以丙烯酸樹脂作爲主成分者爲特 -40- 200937365 佳。 又’本發明之製造方法中，作爲使用於黏著薄膜或黏 著劑層的黏著劑，並無特別限定，可舉出光硬化型樹脂、 紫外線硬化型樹脂、熱硬化型樹脂、及濕分硬化型樹脂等 黏著劑。其中亦以硬化速度優良、設備可較簡便地設置的 觀點來看，以紫外線硬化型樹脂黏著劑爲佳。作爲本發明 的製造方法中特別適用的紫外線硬化型樹脂黏著劑，例如 Ο 可舉出環氧樹脂、丙烯酸樹脂、3 -氯氧雜環丁烷 (oxetane )樹脂、尿烷樹脂、聚乙烯醇樹脂等中加入自 由基聚合型啓始劑及/或陽離子聚合型啓始劑者。其中亦 以不具有脂環式環氧樹脂與脂環式結構之環氧樹脂的混合 物中加入陽離子聚合型啓始劑者爲佳。 作爲紫外線硬化型樹脂黏著劑層的形成方法，可採用 未硬化紫外線硬化型樹脂黏著劑之狀態下，於使用於如前 述之保護薄膜的熱塑性樹脂薄膜進行塗佈形成黏著劑塗佈 〇 面的方法、或於偏光薄膜與保護薄膜之間將紫外線硬化型 樹脂黏著劑於未硬化狀態下滴下後’ 一邊以輥等均勻地壓 . 入展延下壓著的方法等。對保護薄膜之紫外線硬化型樹脂 黏著劑的塗佈方法並無特別限定，例如可例用流延法 (Doctor-blade)、環棒式塗佈（Wire-Bar)、模具塗佈 (die coater)、點塗佈、凹板塗劑（gravure coater )等 種種塗佈方式。 又’於偏光薄膜與保護薄膜之間將前述紫外線硬化型 樹脂黏著劑滴下後，以輥進行加壓並均勻地壓入展延的方 -41 - 200937365 法中，作爲輥之材質’可使用金屬或橡膠等。於偏光薄膜 與保護薄膜之間滴入前述紫外線硬化型樹脂黏著劑後，通 過輥與輥之間’加壓下壓入展延之方法中，由兩側夾住的 2個輥可爲相同材質、或相異材質。 且’前述本發明的第1製造方法或第2製造方法中之 各步驟於該領域中，適宜地組合自過去即廣泛被使用的裝 置而可實現’欲將使用於引出步驟的長形光學薄膜或長形 光學薄片自引出輥引出的裝置亦無特別限定，可使用過去 ❹ 公知之適宜裝置。欲防止所引出之長形光學薄膜或長形光 學薄片的靜電之觀點來看，亦使用具備消電裝置者爲佳。 又’本發明的第1製造方法或第2製造方法中之第1 貼合步驟中’將2片以上的黏著性或具有黏著性之長形光 學薄片層合體必須於寬方向對齊下貼合。光學顯示元件爲 液晶顯示元件，於該兩面將前述長形光學薄片層合體各貼 合時’該第1貼合步驟所使用的第1貼合輥至少要有2 台。此時，欲於光學顯示元件之一方進行貼合的長形光學 〇 薄片層合體之形成時僅使用2台以上的第1貼合輥亦可。 典型爲將對齊寬方向的長形光學薄膜、長形光學薄片對應 所望結構而適宜地層合，通過第1貼合輥之間時，藉由壓 著而貼合。一般於第1貼合步驟中同時貼合的長形光學薄 膜之片數爲2〜4片之範圍。且，以第1貼合步驟所貼合 之長形光學薄片層合體表面上，例如使用進行電暈處理、 等離子處理、火焰處理等表面改質的裝置施予表面處理亦 可。其中，由表面改質效果優良、又裝置之設置簡便來 -42- 200937365 看，構成可施予電暈處理者爲佳。 又’前述本發明之第1製造方法或第2製造方法中之 第2貼合步驟中，使用—般液晶面板之製造裝置上所使用 的具有輥（第2貼合輥）之偏光板與液晶顯示元件之貼合 裝置。作爲於該第2貼合步驟所使用的貼合裝置，例如將 長形光學薄片層合體或光學薄片層合體於光學顯示元件之 一邊上’設置可正確調整位置之機構、或剝離欲保護黏著 Ο 劑層或黏著劑層所貼合之離型薄膜的機構者。使用於第2 貼合步驟之貼合裝置可爲，於各光學顯示元件之單面上貼 合長形光學薄片層合體或光學薄片層合體之機構，又亦可 爲於光學顯不兀件之兩面上，同時貼合長形光學薄片層合 體或光學薄片層合體之機構。 第1貼合步驟及第2貼合步驟中之貼合所使用的輥 爲’ 2跟橡膠輥之組合或橡膠輥與金屬輥之組合爲佳。於 橡膠輥之情況時，其硬度依據JIS K 630 1的Shore C ® scale下爲60〜80度之範圍者爲佳。該硬度若比60度低 時’容易產生壓力不均，一方高於80度時，可能會損傷 . 到薄膜。作爲橡膠之材質，可舉出尿烷橡膠、丁基橡膠、 丁腈橡膠、EP DM橡膠、聚矽氧橡膠等，由耐久性面來看 以EPDM橡膠或聚矽氧橡膠爲佳。 作爲前述本發明的第1製造方法或第2製造方法中之 截斷步驟所使用的截斷手段，可舉出一般使用的光學薄片 之截斷裝置、或光學薄片的打擊脫離裝置。又，第1製造 方法所使用的截斷手段爲，可進一步具備將貼合於光學顯 -43- 200937365 示元件之長形光學薄片層合體經截斷後，削除於光學顯示 元件剩下的不要部分、或削除後的光學顯示元件之端部、 使經貼合的光學薄片層合體之截斷端面美化的裝置。又， 使用於第2製造方法之截斷手段爲，亦可進一步具備於光 學顯示元件進行貼合前，將經截斷的光學薄片層合體之端 面美化的裝置。且，於第2製造方法所使用的截斷裝置， 亦可進一步具備將於截斷步驟中經截斷的光學薄片層合體 貼合於光學顯示元件之取出裝置，作爲取出該光學薄片層 0 合體之裝置，可使用一般液晶面板的製造裝置上所使用的 薄片與液晶顯示元件的貼合裝置。 以下舉出實施例對本發明做更詳細說明，但本發明並 非受到這些實施例之限定者。 【實施方式】 <實施例1> 依據圖1所示方法，藉由本發明之第1製造方法製造 〇 出液晶面板的例子。 (偏光薄膜） 將平均聚合度約2400，鹼化度99.9莫耳％以上之厚 度75 μιη的聚乙烯醇類薄膜，保持緊張狀態下，浸漬於 3(TC的純水使其膨潤下，其中於長方向延伸至延伸倍率 1_3倍。將該聚乙烯醇類薄膜保持前述延伸倍率之狀態 下，浸漬於含有碘及碘化鉀之30 °C的水溶液（碘：碘化 -44- 200937365 鉀：水=0.05 : 2: 1 00 (重量比））而染色，繼續浸漬於 含有碘化鉀及硼酸之5 4 °C的水溶液（碘化鉀：硼酸：水= 12: 5: 1〇〇(重量比）），一邊進行交聯處理，一邊以此 . 等染色及交聯處理步驟延伸至總倍率5.6倍。其後，以 12 °C的純水進行洗淨。將洗淨後之聚乙烯醇類薄膜，於溫 度保持於65 °C之乾燥爐中進行3分鐘乾燥。藉此得到於聚 乙烯醇類中碘被吸附定向的偏光薄膜。 〇 (偏光板輥） 另外於100重量份之水中，溶解羧基變性聚乙烯醇類 (Kuraray p〇valKL318、（股）Kuraray 製）3 重量份、 與水溶性聚醯胺環氧樹脂（SUMIREZ RESIN 650、Sumika Chemtex (股）製）（固體成分濃度30%之水溶液）1.5 重量份，調製出將聚乙烯醇樹脂作爲主成分之水的黏著 劑。 〇 藉由上述方法所製造之偏光薄膜的一面上，將預先施 予電暈處理的降莰烯樹脂製二軸延伸薄膜（ZEONOR薄 膜、（股）OPTES製、厚度80μηι )，介著前述黏著劑進 行層合，一邊保持張力下，一邊於80 °C下進行5分鐘乾燥 後，縱切成對應面板寬之寬度。其次，於降莰烯樹脂薄膜 之表面上施予電暈處理下，於該電暈處理面上形成丙烯酸 黏著劑層，於該黏著劑層之表面上設有離型薄膜之狀態下 成爲輥捲狀。藉此，得到以偏光薄膜、降莰烯樹脂薄膜、 黏著劑層（附有離型薄膜）的順序進行層合之偏光板輥。 -45- 200937365 (表面處理薄膜輥） 於對應面板寬的寬度之三乙醯基纖維素的表面上設有 防眩處理層的厚度83 μιη之表面處理薄膜（消光硬塗佈 TAC薄膜DS-LR2，大日本印刷（股）製）的三乙醯基纖 維素表面上形成丙烯酸黏著劑層，於該黏著劑層表面上設 有離型薄膜之狀態下成爲輥捲狀。藉此得到附有黏著劑層 之表面處理薄膜輥。 〇 (聚對苯二甲酸乙二醇酯保護薄膜輥） 於對應面板寬的寬度之一軸延伸聚對苯二甲酸乙二醇 酯薄膜（厚度：45 μιη)之表面上，施予電暈處理後，形 成丙烯酸黏著劑層，於該黏著劑層表面上設有離型薄膜之 狀態下成爲輥捲狀。藉此得到附有黏著劑層之保護薄膜 輕。 (液晶面板） 使用前述偏光板輥、附有黏著劑層之表面處理薄膜輥 及保護薄膜輥，如圖1所示，藉由本發明之第1製造方法 製造出液晶面板。即，將前述偏光板輥作爲長形光學薄片 1引出，將附有黏著劑層之表面處理薄膜輥作爲長形光學 薄片3引出，設置於表面處理薄膜輥的黏著劑層表面之離 型薄膜經剝落後，於偏光板輥的偏光薄膜側配置表面處理 薄膜輥之黏著劑層側之狀態下，保持張力下以夾輥壓著並 -46 - 200937365 貼合。其次，於偏光板側黏著劑層表面所設置的離型薄膜 經剝落後，該黏著劑層側配置於液晶顯示元件側下，於液 晶顯示元件之一面上進行貼合。 . 一方面，將前述偏光板輥作爲長形光學薄片11引 出，將附有黏著劑層之保護薄膜輥作爲長形光學薄片13 引出，於保護薄膜輥的黏著劑層表面所設有的離型薄膜經 剝離後，於偏光板輥之偏光薄膜側配置保護薄膜輥的黏著 〇 劑層側之狀態下，保持張力下以夾輥進行壓著並貼合。其 次於偏光板側黏著劑層表面所設置之離型薄膜經剝離後， 該黏著劑層配置於液晶顯示元件側下，貼合於液晶顯示元 件的另一面上。且，例如使用押切型的切割機或切斷 (Dicing )型切割機（截斷手段），截斷於液晶顯示元件 所貼合之剩餘區域的薄膜。 藉此，於液晶顯示元件之一面上，以黏著劑層、降莰 烯樹脂之二軸延伸薄膜、偏光薄膜、表面處理薄膜的順序 進行層’於液晶顯不兀件之另一面上，以黏著劑層、降莰 烯樹脂的二軸延伸薄膜、偏光薄膜、黏著劑層、聚對苯二 • 甲酸乙二醇酯保護薄膜之順序進行層合後得到液晶面板。 <實施例2> 依據圖5及圖6所示方法，藉由本發明之第2製造方 法製造出液晶面板的例子。 (偏光板輥） -47- 200937365 使用與實施例1之（偏光板輥）所例舉的相同偏光板 輥。 (表面處理薄膜輥） 將於三乙醯基纖維素之表面上設有防眩處理層的厚度 83μιη之表面處理薄膜（消光硬塗佈TAC薄膜DS_LR2’ 大日本印刷（股）製’捲取成輥狀之狀態者）’縱切成對 應面板寬度之寬度’直接作爲表面處理薄膜輥°此爲實施 © 例1的（表面處理薄膜輥）所例舉的表面處理薄膜輥’相 當於未形成黏著劑層者。 (聚對苯二甲酸乙二醇酯保護薄膜輥） 將一軸延伸聚對苯二甲酸乙二醇酯薄膜（厚度： 45 μπι )捲取成輥狀者，縱切成對應面板寬度之寬度，直 接作爲表面處理薄膜輥。此爲、實施例1的（聚對苯二甲 酸乙二醇酯保護薄膜輥）所例舉的保護薄膜輥，相當於未 〇 形成黏著劑層者。 (液晶面板） 圖5中，將前述偏光板輥作爲長形光學薄片1引出， 將表面處理薄膜輥作爲長形光學薄片3引出，於偏光板輥 之偏光薄膜側配置表面處理薄膜輥的三乙醯基纖維素側之 狀態下’兩者間介著含有環氧樹脂與陽離子聚合型啓始劑 之紫外線硬化型樹脂黏著劑，保持張力下以夾輥進行貼 -48- 200937365 合。貼合後自偏光板側以紫外線照射，使黏著劑層硬化。 一方面’將前述偏光板輥作爲長形光學薄片11引 出，將保護薄膜輥作爲長形光學薄片13引出，於偏光板 輥的偏光薄膜側配置保護薄膜輥之狀態下，兩者間介著含 有環氧樹脂與陽離子聚合型啓始劑之紫外線硬化型樹脂黏 著劑’保持張力下以夾輥進行貼合。貼合後由保護薄膜側 以紫外線照射’使黏著劑層硬化。其後，偏光板與表面處 © 理薄膜之貼合物、及偏光板與保護薄膜之貼合物各使用如 實施例1所不之截斷手段，截斷爲對應貼合之液晶顯示元 件的尺寸。 搬運截斷偏光板與表面處理薄膜之貼合物後所得之光 學薄片層合物51’如圖6所示自偏光板的黏著劑層側剝 離離型薄膜後’其黏著劑層配置於液晶顯示元件側下，貼 合於於液晶顯示元件之一面之同時，搬運截斷偏光板與保 護薄膜之貼合物所得之光學薄片層合物52，如圖6所 — 示’自偏光板的黏著劑層側剝離離型薄膜後，該黏著劑層 配置於液晶顯示元件側下’貼合於液晶顯示元件之另一 • 面。 藉此’於液晶顯不兀件之一面上’以黏著劑層、降茨 燦樹脂的一軸延伸薄膜、偏光薄膜、表面處理薄膜之順序 進行層合’於液晶顯不元件之另一面上，以黏著劑層、降 欠燦樹脂的—軸延伸薄膜、偏光薄膜、聚對苯二甲酸乙二 醇酷保護薄膜之順序進行層合後得到液晶面板。 -49- 200937365 <實施例3> 依據圖3所不方法，藉由本發明的第1製造方法製造 出液晶面板之例子。 (偏光薄膜輥） ^ 依據實施例1的（偏光薄膜）所例舉的方法所得之偏 光薄膜的兩面上貼合聚乙烯製剝離薄膜，縱切成對應液晶 顯示元件之寬度’作爲偏光薄膜輥。 ❹ (表面處理薄膜輥） 使用與實施例2的（表面處理薄膜輥）所例舉的相同 表面處理薄膜輥。 (降莰烯樹脂薄膜輥） 將降莰烯樹脂製二軸延伸薄膜捲取成輥狀者 (ZEONOR 薄膜，（股）〇PTES 製，厚度：8〇μιη)，縱 〇 切成對應面板寬之寬，直接作爲降莰烯保護薄膜輥。 (聚對苯二甲酸乙二醇酯保護薄膜輥） 與實施例2的（聚對苯二甲酸乙二醇酯保護薄膜輥） 所例舉者相同，使用聚對苯二甲酸乙二醇酯保護薄膜輥。 (液晶面板） 圖3中，由前述偏光薄膜輥將剝離薄膜進行剝離者作 -50- 200937365 爲長形光學薄膜21引出、將前述表面處理薄膜輥作爲長 形光學薄片3引出’前述降莰烯保護薄膜輥作爲長形光學 薄片23引出，將以丙烯酸黏著劑所形成之黏著薄膜於其 單面設有離型薄膜的狀態下作爲長形光學薄膜25引出。 此時’將表面處理薄膜的三乙醯基纖維素側面對偏光薄 膜，表面處理薄膜與偏光薄膜之間、及偏光薄膜與保護薄 膜之間各介著含有環氧樹脂與陽離子聚合型啓始劑之紫外 〇 線硬化型樹脂黏著劑，以表面處理薄膜、黏著劑層、偏光 薄膜、黏著劑層、保護薄膜、黏著薄膜、離型薄膜之順序 下配置。該狀態下’保持張力下以夾輥進行貼合。貼合 後，自離型薄膜側以紫外線照射，使表面處理薄膜與偏光 薄膜之間、以及偏光薄膜與保護薄膜之間的黏著劑層硬 化。繼續’自黏著薄膜將離型薄膜剝落，該黏著薄膜側配 置於液晶顯示元件側下’於液晶顯示元件的一面上進行貼 合。 © 一方面’自前述偏光薄膜輥將剝離薄膜進行剝離者作 爲長形光學薄膜31引出，將前述聚對苯二甲酸乙二醇酯 保護薄膜輥作爲長形光學薄片13引出，將丙烯酸黏著劑 所形成之黏著薄膜於其單面上設有離型薄膜之狀態下作爲 長形光學薄膜33引出。此時，偏光薄膜與聚對苯二甲酸 乙二醇酯保護薄膜之間介著含有環氧樹脂與陽離子聚合型 啓始劑的紫外線硬化型樹脂黏著劑，以保護薄膜、黏著劑 層、偏光薄膜、黏著薄膜的順序下進行配置。該狀態中， 保持張力下以夾輥進行貼合。貼合後自保護薄膜側以紫外 -51 - 200937365 線照射，使偏光薄膜與保護薄膜之間的黏著劑層硬化。繼 續自黏著薄膜使離型薄膜剝離’其黏著薄膜側配置於液晶 顯示元件側下，貼合液晶顯示元件之其他面。換言之於液 晶顯示元件的兩面貼合各光學薄片層合體後’使用如實施 例1所示截斷手段’截斷於液晶顯示元件所貼合之剩餘區 域的薄膜。 藉此，於液晶顯示元件之一面上，以黏著薄膜、降莰 烯樹脂的二軸延伸薄膜、偏光薄膜、表面處理薄膜的順序 進行層合，於液晶顯示元件之另一面上’以黏著薄膜、偏 光薄膜、聚對苯二甲酸乙二醇酯保護薄膜之順序進行層合 後得到液晶面板。 <實施例4> 依據如圖4所示方法，藉由本發明之第1製造方法製 造出液晶面板的例子。 (偏光薄膜輥） 使用與實施例3的（偏光薄膜輥）所例舉的相同偏光 薄膜輥。 (表面處理薄膜輥） 使用與2的表面處理薄膜輥）所例舉的相同表面處理 薄膜輥。 -52- 200937365 (三乙醯基纖維素保護薄膜輥） 將三乙醯基纖維素所成之厚度43μιη 輥狀者（KC4FR-1、Konicaminolta (股） 應面板寬度之寬度，直接作爲表面處理薄 (聚對苯二甲酸乙二醇酯保護薄膜輥 使用與實施例2的（聚對苯二甲酸乙 © 輥）所例舉的相同聚對苯二甲酸乙二醇酯 (液晶面板） 圖4中，將自前述偏光薄膜輥將剝離 作爲長形光學薄膜21引出，將前述表面 長形光學薄片3引出，將前述三乙醯基纖 爲長形光學薄片23引出，將丙烯酸黏著 薄膜於單面上設有離型薄膜之狀態下作 〇 25引出。此時，將表面處理薄膜的三乙 偏光薄膜相對，表面處理薄膜與偏光薄膜 膜與三乙醯基纖維素保護薄膜之間各介著 陽離子聚合型啓始劑之紫外線硬化型樹脂 處理薄膜、黏著劑層、偏光薄膜、黏著劑 黏著薄膜、離型薄膜的順序下進行配置。 張力下以夾輥進行貼合。貼合後自離型薄 射，使表面處理薄膜與偏光薄膜之間、以 護薄膜之間的黏著劑層硬化。繼續，自黏 的延伸薄膜捲成 製），縱切成對 膜輥。 ) 二醇酯保護薄膜 保護薄膜輥。 薄膜進行剝離者 處理薄膜輥作爲 維素保護薄膜作 劑所形成之黏著 爲長形光學薄膜 醯基纖維素側與 之間、及偏光薄 含有環氧樹脂與 黏著劑，以表面 層、保護薄膜、 此狀態中，保持 膜側以紫外線照 及偏光薄膜與保 著薄膜使離型薄 -53- 200937365 膜剝落，其黏著薄膜側配置於液晶顯示元件側下’於液晶 顯不兀件之一面上進行貼合。 一方面，自前述的偏光薄膜輥將剝離薄膜進行剝離者 作爲長形光學薄膜31引出，將前述聚對苯二甲酸乙二醇 酯保護薄膜輥作爲長形光學薄片13引出，將前述三乙醯 基纖維素保護薄膜輥作爲長形光學薄片41引出，將丙烯 酸黏著劑所形成之黏著薄膜於該片面上設有離型薄膜之狀 態下作爲長形光學薄膜33引出。此時，聚對苯二甲酸乙 0 二醇酯保護薄膜與偏光薄膜之間、及偏光薄膜與三乙醯基 纖維素保護薄膜之間介著含有環氧樹脂與陽離子聚合型啓 始劑之紫外線硬化型樹脂黏著劑，以聚對苯二甲酸乙二醇 酯保護薄膜、黏著劑層、偏光薄膜、黏著劑層、三乙醯基 纖維素保護薄膜、黏著薄膜、離型薄膜之順序而配置。此 狀態中，保持張力下以夾輥進行貼合。貼合後自聚對苯二 甲酸乙二醇酯保護薄膜側以紫外線照射，使聚對苯二甲酸 乙二醇酯保護薄膜與偏光薄膜之間、以及偏光薄膜與三乙 〇 醯基纖維素保護薄膜之間的黏著劑層硬化。繼續自黏著薄 膜將離型薄膜進行剝離，該黏著薄膜側設置於液晶顯示元 件側下’貼合於液晶顯示元件之另一面。此後，使用實施 例1所示截斷手段，截斷貼合於液晶顯示元件之剩餘領域 的薄膜。 藉此’於液晶顯示元件之一面上以黏著薄膜、三乙醯 基纖維素保護薄膜'偏光薄膜、表面處理薄膜的順序進行 層合’於液晶顯示元件之另一面上以黏著薄膜、三乙醯基 -54- 200937365 纖維素保護薄膜、偏光薄膜、聚對苯二甲酸乙二醇酯保護 薄膜的順序進行層合後得到液晶面板。 <實施例5 > 依據圖1所示方法，藉由本發明的第1製造方法，製 造出與實施例1相異的層構成之液晶面板的例子。 〇 (偏光板輥） 於依據實施例1的（偏光薄膜）所示方法所得之偏光 薄膜的一面上，將預先施予電暈處理的降莰烯樹脂製二軸 延伸薄膜（ZEONOR薄膜、（股）OPTES製，厚度： 80μπι ) ’欲使該電暈處理面成爲表面（非黏著面）下， 又偏光薄膜的其他面上，將於甲基丙烯酸樹脂薄膜表面上 設有防眩處理層之厚度85μιη的保護薄膜，欲使該防眩處 理層成爲表面（非黏著面）下，各介著含有環氧樹脂與陽 G 離子聚合型啓始劑之紫外線硬化型樹脂黏著劑進行貼合。 貼合後’自降莰烯樹脂製二軸延伸薄膜側以紫外線照射使 黏著劑硬化，再捲成輥狀，作爲偏光板輥。 (液晶面板） 圖1中’將前述偏光板輥作爲長形光學薄片3引出， 將丙烯酸黏著劑所形成之黏著薄膜於該片面上設有離型薄 膜之狀態下作爲長形光學薄膜1引出。此時，偏光板輥中 之降莰烯樹脂的二軸延伸薄膜之電暈處理面與黏著薄膜成 -55- 200937365 對面，配置成黏著薄膜上的離型薄膜成爲最外側。該狀態 中，保持張力下以夾輥進行壓著並貼合。其次將黏著薄膜 外側的離型薄膜進行剝離後，欲將該黏著薄膜側配置於液 晶顯不兀件側下’貼合於液晶顯不兀件之一面。於液晶顯 示元件之另一面上，與實施例1所示者相同，以黏著劑 層、降莰烯樹脂之二軸延伸薄膜、偏光薄膜、黏著劑層、 聚對苯二甲酸乙二醇酯保護薄膜的順序進行層合。 藉此液晶顯示元件的一面上，具有黏著薄膜、降莰烯 樹脂之二軸延伸薄膜、偏光薄膜、防眩層的甲基丙烯酸樹 脂薄膜以該順序下進行層合，於液晶顯示元件之另一面 上，以黏著劑層、降莰烯樹脂的二軸延伸薄膜、偏光薄 膜、黏著劑層、聚對苯二甲酸乙二醇酯保護薄膜之順序進 行層合後得到液晶面板。 產業上可利用性 本發明之製造方法爲，省略光學構件製造公司中之薄 膜貼合步驟、截斷步驟、捆包步驟及對面板加工製造公司 之收納產品（搬送），故貼合於光學顯示面板之光學薄膜 可更清淨，具有減少缺陷之效果。又，提高光學薄膜或該 層合體之光學薄片的產率，且提高製品利用效率。 且，光學顯示元件爲液晶顯示元件時，該表裏（辨識 側與背光側）爲相異薄膜構成所成爲一般例子，但其中~ 部份，例如具有可將偏光薄膜以表裏共通化的優點。具體 爲於液晶顯示元件之辨識側偏光板施予防眩處理或反射防 -56- 200937365 止處理等表面處理，於背光側偏光板上賦予光擴散功能或 亮度提高功能等固有功能者爲多，過去對於如此要求，將 作爲必要之光學薄膜或光學薄片以光學構件製造公司進行 層合，於面板加工製造公司進行收納產品時，將構成表裏 之偏光板的偏光薄膜作爲1種類，於此貼合於液晶顯示元 件之表裏上爲必要的相異光學薄膜或光學薄片，且於液晶 顯示元件進行貼合之形態亦成爲可能。 ❹ 【圖式簡單說明】 圖1表示本發明中之光學顯示面板的製造方法中， 對於第1製造方法的較佳一例之模型方式表示圖。 圖2之圖2(a)表示圖1所示例中，自引出輥2被 引出的長形光學薄片1的模型方式截面圖，圖2(b)表 示自引出輥4被引出的長形光學薄片3的模型方式截面 圖。 Ο 圖3表示本發明中之第1製造方法的較佳其他例子 之模型方式表示圖。 . 圖4表示本發明中之第1製造方法的較佳另一例子 之模型方式表示圖。 圖5表示本發明之光學顯示面板的製造方法中，第 2製造方法之較佳一例的前半部分之模型方式表示圖。 圖6表示本發明之光學顯示面板的製造方法中，第 2製造方法之較佳一例的後半部分之模型方式表示圖。 圖7表示光學顯示元件之一面上將光學薄片層合體 -57- 200937365 貼合後，將該光學顯示元件進行上下反轉之同時，將該搬 送方向迴轉90度，於光學顯示元件之另面上貼合其他光 學薄片層合體之情況例子以模型方式表示的斜視圖。 【主要元件符號說明】 1、 11、3、13、21、23、31、41:長形光學薄片 2、 4、 12、 14、 22、 24、 26、 32、 34、 42:弓f出輕 25、33:長形光學薄膜 5 、 15 、 27 、 28 、 35 、 43 :第 1 貼合輥 6、16、55、56:第2貼合輥 7 :光學顯示元件 8 :偏光薄膜 9 :保護薄膜 1 〇 :黏著劑層 17 :表面處理薄膜 1 8 :黏著劑層 51、52:光學薄片層合體 53、54、74、75:截斷手段 5 7、5 8 :剝離輥 59、60 :剝離後的離型薄膜 6 1、6 2 :回收輥 71 :第1搬送部 72 :第2搬送部 77 :反轉部 -58-200937365 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a method of manufacturing an optical display panel. [Prior Art] In the optical member manufacturing company, for example, an optical film having an optical function such as a polarizing plate used in a liquid crystal display device or an optical sheet of the laminated body is continuously wound into a roll shape. For example, the polarizing plate thus manufactured is moved to a panel processing factory, and is attached to a liquid crystal display element of a panel processing factory (an optical display element in which a liquid crystal is sealed between two glass plates, which is also referred to as a liquid crystal cell). The liquid crystal panel used for the liquid crystal display device is manufactured in this manner. In the past, when the optical component manufacturer transferred the optical components such as the polarizing plate to the panel processing factory, the panel processing factory cut the elongated optical sheet to a desired size of the sheet (optical sheet) and bundled it in a plurality of overlapping manners. .如此 In the optical parts manufacturing company, when the optical sheets obtained by cutting to a predetermined size are bundled in a plurality of sheets, it is required to have no transparency or a high degree of transparency. In addition, in the transportation, there is no need to cause scratches or breaks, etc., especially the binding materials, and the binding work must be cautious. On the other hand, in the panel processing factory, when the optical sheets that are tightly bundled are used in combination for processing, the binding is too strict, the work of unbundling is very difficult, and the unbundling may cause scratches or breaks. Therefore, it must be carried out very rigorously and carefully, giving the operator a heavy burden. For such a problem, a method of directly bonding an elongated optical sheet to an optical display element of -5 to 200937365 has been proposed (for example, refer to Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. A method of bonding to an optical display panel after being cut off (refer to Japanese Laid-Open Patent Publication No. Hei No. Hei No. Hei. Further, in Japanese Patent Publication No. 20 02-196132, it is disclosed that after the polarizing film and the first protective film are bonded together and wound up, the second protective film is bonded to the surface of the polarizing film which is not bonded to the first protective film to produce polarized light. The method of the board. Further, in the case of a large-sized optical display device (for example, a liquid crystal display device) for TV use, the size can be from about 20 inches to about 100 inches, so that it is necessary to use an optical sheet having an optical function that matches the size of the optical display device. problem. For example, a polarizing plate is generally a structure in which a protective film is laminated on both surfaces of a polarizing film, and an adhesive layer is formed on the outer surface of the other protective film. The protective film is often provided with an optical function, for example, placed on a protective film on the identification side of the optical display device, and subjected to surface treatment (hard coating treatment, anti-glare treatment, anti-reflection treatment, anti-fouling treatment, antistatic treatment, etc.). The protective film between the polarizing plate and the optical display element can provide a phase difference function for adjusting the viewing angle, contrast, and hue of the optical display device. The polarizing film has a property of being easily broken along the extending direction, and the laminated protective film is generally used as a polarizing plate after the production of the polarizing film. At this time, from the viewpoint of manufacturing efficiency, the roll width of the elongated optical sheet of the polarizing plate must be fixed to some extent. When the roll width of the elongated optical sheet is fixed, as the size of the optical display device described above is diversified, it is necessary to cut off the polarizing plate after being cut off in accordance with the size of the optical display device. Therefore, the number of discarded parts has increased, and the ratio of use as a product -6-200937365 (efficiency) has been significantly reduced. The present invention has been made in an effort to solve the above problems, and an object of the invention is to provide a method for producing an optical display panel using an optical film which is cleaner than the past and has few defects. Further, the present invention has an object of providing a method for producing an optical display panel in which the use efficiency of an optical sheet of an optical film or a laminate thereof can be improved. SUMMARY OF THE INVENTION The present invention is a method for producing an optical display panel by bonding an optical sheet laminate having an optical function to an optical display element, comprising an elongated shape of at least two elongated optical films having optical functions or a laminate thereof. The optical sheet is wound up by a plurality of rolls, and the step of taking out the elongated optical film or the elongated optical sheet is carried out, and the plurality of elongated optical films or elongated optical sheets are respectively bonded to form an elongated optical sheet laminate. The first bonding step, the second bonding step of directly bonding the elongated optical sheet laminate to the optical display element, and the optical display panel cut from the bonded body of the elongated optical sheet laminate and the optical display element The method of manufacturing an optical display panel in which the long optical sheet laminate in the area below the entire optical display panel surface is a cut-off step of the optical sheet laminate (hereinafter referred to as "first manufacturing method"). The present invention further provides a method of manufacturing an optical display panel by bonding an optical display element having an optical function to an optical display element, comprising an elongated optical sheet having at least two elongated optical films having optical functions or the laminate. Taking the plurality of rolls, leading out the elongating optical film or the elongating optical thin film 200937365, and the elongating optical film or the elongating optical sheet to form the elongate optical sheet laminate a bonding step, a method of manufacturing an optical display panel in which a long optical sheet laminate is cut, a step of cutting the optical sheet laminate, and a second bonding step of bonding the optical sheet laminate to the optical display element ( Hereinafter, this method will be simply referred to as "second manufacturing method"). ^ As in the above description, a resin film having an optical function is referred to as an "optical film" in principle, and a laminate of a plurality of optical thin Q films is referred to as an "optical sheet" in principle. However, there is no strict distinction between ordinary films and sheets. For example, one optical layer provided by coating or surface treatment on a base film is classified into an "optical film" in principle. Further, as described below, the resin film having a polarizing function itself (for example, a dichroic dye-adsorbed oriented polyvinyl alcohol resin film is equivalent to this) is called a "polarizing film", and the polarizing film is less laminated on one side. Other optical films such as protective films are called "polarizers". The "polarized film" is one of the "optical films", and the "polarized plate" is the "optical sheet". In the first production method of the present invention or the second production method of the present invention (hereinafter collectively referred to as "the production method of the present invention"), one sheet of the elongated optical film or the elongated optical sheet provided in the extraction step contains A polarizing film made of a polyvinyl alcohol resin film is preferred. In the production method of the present invention, one of the elongate optical sheets provided in the extraction step may be a polarizing film made of a polyvinyl alcohol resin film and a thermoplastic resin adhered to at least one surface of the polarizing film. Bao Bao-8 - 200937365 Protective film polarizer. Further, in the production method of the present invention, one of the elongated optical sheets provided in the extraction step is a polarizing film which can be formed of a polyvinyl alcohol resin film, and an adhesive layer formed on at least one surface of the polarizing film, And a polarizing plate for protecting the release film of the adhesive layer. At this time, in the first bonding step or the second bonding step, the release film is peeled off, and the exposed adhesive layer is bonded to another optical film, or an optical sheet or an optical display element. Further, in the production method of the present invention, one of the elongated optical sheets provided in the extraction step may be a polarizing film made of a polyvinyl alcohol resin film, and a thermoplastic resin adhered to one surface of the polarizing film. A protective film, an adhesive layer formed on the other side of the polarizing film, and a polarizing plate for protecting the release film of the adhesive layer. At this time, in the first bonding step or the second bonding step, the release film is peeled off, and the exposed adhesive layer is provided for bonding to other optical films or optical sheets or optical display elements. Further, in the production method of the present invention, one sheet of the elongated optical sheet provided in the extraction step may be a polarizing film formed of a polyvinyl alcohol resin film.  A film, a protective film formed of a thermoplastic resin adhered to one surface of the polarizing film, an adhesive layer formed on the outer surface of the protective film, and a polarizing plate for protecting the release film of the adhesive layer. At this time, the release film is peeled off in the first bonding step or the second bonding step, and the exposed adhesive layer is applied to other optical films or optical sheets or optical display elements. In the production method of the present invention, at least one of the elongated optical film or the elongated optical sheet provided in the extraction step contains at least one selected from the group consisting of -9 to 200937365 in the following (a) to (e). (a) a cycloolefin resin film, (b) a cellulose ester resin film, (c) a polyethylene terephthalate resin film, (d) a (meth)acrylic resin film, and (e) a polypropylene resin film . In the manufacturing method of the present invention, the use of the ultraviolet curable resin adhesive in the case where the elongate optical film or the elongate optical sheet in the first bonding step is bonded to other elongate optical film or elongate optical sheet 0 can be used as a preferred embodiment. The representative example of the optical display panel manufactured by the manufacturing method of the present invention is a liquid crystal panel, and the optical display element is a liquid crystal display element. And when the 'optical display element is a liquid crystal display element, the difference between the surface (identification side and the backlight side) is a general film structure, but also has such a part, for example, also has a polarizing film into the surface. The advantages of commonalization. Specifically, surface treatment such as anti-glare treatment or anti-reflection treatment is applied to the identification-side polarizing plate of the liquid crystal display element, and the backlight-side polarizing plate is often provided with a function of a light diffusion function or a brightness enhancement function. In response to such a request, an optical film or an optical sheet which is required to be laminated is laminated by an optical member manufacturing company, and after a product is stored in a panel processing and manufacturing company, a polarizing film constituting a polarizing plate in the front and back is used as one type, and a liquid crystal display element is used here. The surface is bonded to a necessary dissimilar optical film or optical sheet, and can be attached to the liquid crystal display element. -10-200937365 BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a method for producing an optical display panel by bonding an optical sheet laminate having an optical function to an optical display element, and is roughly classified into the first manufacturing method and the present invention of the present invention. The second manufacturing method. Further, the optical display panel manufactured by the present invention comprises a liquid crystal panel, an organic EL panel, etc., and the optical display panel is used in a liquid crystal display device, an organic EL display device, or the like. The manufacture of optical display devices. Hereinafter, an example of a case where a liquid crystal panel is also preferable in the manufacture of an optical display panel will be described. However, the optical display panel manufactured by the present invention is of course not limited thereto. Fig. 1 is a view showing a model mode of a preferred example of the first manufacturing method in the method of manufacturing an optical display panel of the present invention. The first manufacturing method of the present invention comprises a plurality of rolls which are taken up by an elongated optical sheet having at least two elongated optical films having an optical function or a laminate thereof, and which lead to the elongating optical film or the elongated optical sheet. The first bonding step of forming the elongated optical thin film laminate and the direct bonding of the elongated optical thin film laminate to the optical The second bonding step of the display element and the bonding body of the elongated optical sheet laminate and the optical display element are cut off from the area above the display area of the optical display panel and below the all-optical display panel surface The sheet laminate is a step of cutting off the optical sheet laminate. Hereinafter, a first manufacturing method of the present invention will be described in detail with reference to Fig. 1 . The extraction step is first, as shown in FIG. 1, each of the elongate optical sheets 1 and 11 having a laminate of at least two elongated optical films having an optical function is taken up, and the elongate optical sheets are taken out. The other elongated optical sheets 3, 13 of the laminate of 长, η, and -11 - 200937365 optically functional elongated optical films are taken up by the take-up rolls 4, 14, respectively. 2(a) is a schematic cross-sectional view showing the elongated optical sheet 1 taken out by the take-up roll 2 in the example shown in FIG. 1, and FIG. 2(b) is a long optical view taken out by the take-up roll 4. A cross-sectional view of the model of the sheet 3. The elongated optical sheet of the elongated optical film or the laminate used in the present invention is not particularly limited, but is an elongated optical film which is formed as an elongated optical sheet laminate which is bonded to one surface of the optical display element 7 and The long-shaped optical sheet may, for example, be an elongated optical sheet 1 having a laminated structure of a polarizing film 8, a protective film 9 and an adhesive layer 10 as shown in Fig. 2(a), and as shown in Fig. 2 ( b) An example of the case of the elongated optical sheet 3 having a laminated structure of the surface treated film 17 and the adhesive layer 18. Further, as an elongated optical film or an elongated optical sheet which is formed as an elongated optical sheet laminate which is bonded to the other surface of the optical display element 7, for example, the same as the example shown in Fig. 2(a), An example of a case where an elongated optical sheet n having a laminated structure of a polarizing film, a protective film, and an adhesive layer, and an elongated optical sheet 13 having a laminated structure of a protective film and an adhesive layer are used. The elongate optical sheet 1 and the elongate optical sheet 3 are attached to the first bonding step, and the elongate optical sheet n and the elongate optical sheet 13 are bonded to each other to form an elongated optical sheet laminate. . Fig. 1 shows that the first bonding roll 5 is pressed against the elongated optical sheet 1 and the elongated optical sheet 3, and the other first bonding roller 15 is pressed against the elongated optical sheet 11 and the elongated optical sheet 13 Examples of each fit. -12- 200937365 In the case of using the elongated optical sheet of the structure shown in Fig. 2, the adhesive layer 18 side of the elongated optical sheet 3 is disposed on the side of the polarizing film 8 of the elongated optical sheet 1, via the first sticker. In the step "the surface treatment film 17, the adhesive layer 18, the polarizing film 8, the protective film 9, and the adhesive layer 1" are laminated in this order to form an elongated optical sheet laminate. On the other hand, in the case of the elongated optical sheet 11, the adhesive layer side of the elongated optical sheet 13 is disposed on the polarizing film side, and the protective film, the adhesive layer, the polarizing film, the protective film, and the protective film are disposed via the first bonding step. The layers of the adhesive layer are laminated to form an elongated optical sheet laminate. Next, for the second bonding step, the elongated optical sheet laminate to which the elongated optical sheet 1 and the elongated optical sheet 3 are bonded, and the elongated optical sheet to which the elongated optical sheet 11 and the elongated optical sheet 13 are bonded are attached. The laminates are each attached to the optical display element 7. 1 shows the second bonding roller 6, and the elongated optical sheet laminate to which the elongated optical sheet 1 and the elongated optical sheet 3 are bonded is pressed and bonded to one surface of the optical display element 7, and 2 © The bonding roller 16 is an example in which the elongated optical sheet laminate 11 of the elongated optical sheet 11 and the elongated optical sheet 13 is pressed and bonded to the other surface of the optical display element 7. Further, when the elongated optical sheet having the structure shown in Fig. 2 is used, the elongated optical sheet laminate attached to one surface of the optical display element 7 is bonded to the surface treated film 17, the adhesive layer 18, and the polarizing film 8. In the laminated structure of the protective film 9 and the adhesive layer 1〇, the adhesive layer 1 is disposed on the side of the optical display element 7 and bonded to the side. Further, the elongated optical sheet laminate attached to the other surface of the optical display element 7 is bonded to protect the film, the adhesive layer, the polarizing film, the layer of the protective film, and the adhesive layer. The outer adhesive layer is disposed on the side of the optical display element 7 in the combined structure. Further, although not shown, the elongated optical film or the elongated optical sheet provided in the first bonding step has an adhesive to be attached to other elongated optical films or elongated optical sheets in the first bonding step. When the layer or the second bonding step is to be bonded to the adhesive layer of the optical display element 7, for example, the adhesive layer 10 in the elongated optical sheet 1 shown in Fig. 2(a) or as shown in Fig. 2(b) In the case of the adhesive layer 18 in the elongate optical sheet 3, the release film which adheres to the surface of the adhesive layer to the surface of the adhesive layer until the other members are bonded is a general mode. Here, the release film is, for example, a release agent obtained by coating a surface of a transparent resin film such as a polyethylene terephthalate film with a polyoxyl resin. The release film is peeled off before being bonded to other members. A specific example of the method of peeling off the release film can be referred to Fig. 6 and will be described later. In the first manufacturing method of the present invention, in the step of continuing the cutting, the elongated optical sheet laminate is cut off from the bonded body of the elongated optical sheet laminate and the optical display element 7 obtained in the second bonding step. An optical display panel (not shown) which is an optical sheet laminate which is formed above the display area of the optical display panel and which is below the entire optical display panel surface to obtain a final product. In the first manufacturing method of the present invention, the type of the elongated optical film, the number of the elongated optical films, the laminated structure, the elongated optical film, or the number of rolls of the elongated optical sheet are not limited to the example shown in FIG. By. For example, Fig. 3 shows a model mode diagram of a preferred other example of the first manufacturing method of the present invention -14-200937365. 3 is the same as FIG. 1 except for a part of the example shown in FIG. 1, and the same reference numerals are given to the same components, and the description thereof is omitted. The example shown in Fig. 3 is the same as the example shown in Fig. 1. In addition to the drawing of the elongated optical sheet 3 by the take-up roll 4, the elongated optical film 21 is taken out by the take-up roll 22, and the other shaped optical sheets 23 are taken out by the take-up roll 24. And the other elongated optical film is taken out by the take-up roller 26. In this case, for example, a polarizing film (for example, a polarizing film in a state in which a peeling film having a self-adhesive property to be described later is peeled off) is used as the long optical film 21, and an adhesive formed by using an ultraviolet curable resin agent as the elongated optical sheet 23 is used. As a laminate of the layer and the protective film, an adhesive film is used as the elongated film 25. In the example shown in Fig. 3, in the first joining step, the elongated optical film 25 drawn by the take-up roll 26 and the elongated optical sheet 23 led out by the take-up roll 24 are pressed by the first bonding roll 27. First, the elongate film 21 drawn by the take-up roll 22 is pressed and bonded by the other first bonding rolls 28, and the elongated optical light drawn by the take-up roll 4 The sheet 3 is pressed and bonded by another first bonding roll 5 to form an elongated optical sheet laminate. At this time, the elongated optical sheet laminate is, for example, a surface treated film.  The adhesive layer, the polarizing film, the adhesive layer, the protective film, and the adhesive film are laminated. In the second bonding step, the adhesive film side is disposed on the side of the optical display element 7 and is formed on one side of the optical display element 7. Sticking. In the example shown in Fig. 3, similarly to the example shown in Fig. 1, the optical film 31 is taken out from the take-up roll 32, and the other elongated optical film is taken out from the take-up roll 34, in addition to the drawing of the elongated optical sheet 13. The sub-leaf length 25 film photo-adhesive paste is introduced into the light-adhesive roller length 3 3 -15- 200937365. In this case, for example, a polarizing film (for example, a polarizing film in which a release film having self-adhesiveness is peeled off as described later) is used as the elongated optical film 31, and an adhesive film is used as the other elongated optical film 33. In the first bonding step, in the first bonding step, the elongated optical film 33 drawn from the take-up roller 34 and the elongated optical film 31 drawn from the take-up roller 32 are pressed by the first bonding roller 35. First, the elongate optical sheet 13 drawn from the take-up roll 14 is pressed by the other first bonding rolls 15, and bonded together to form an elongated optical sheet laminate. In this case, the long-form optical Q-layer laminate is laminated in the order of, for example, a protective film, an adhesive layer, a polarizing film, and an adhesive film, and the adhesive film side is disposed on the side of the optical display element 7 in a second bonding step. Adhered to the other side of the optical display element 7. Further, for example, Fig. 4 is a view showing a preferred other example model of the first manufacturing method of the present invention. It is to be noted that the same reference numerals are attached to the parts having the same configurations, and the description thereof is omitted. In the example shown in Fig. 4, the elongated optical sheet laminate adhering to one surface (the upper side of the drawing) of the optical display element 7 is formed in the same manner as the example shown in Fig. 3, but this is the other side of the optical display element 7. When the elongated optical sheet laminate to be attached is formed on the lower side (the lower side of the drawing), the long optical sheet 41 drawn from the take-up roll 42 is further different from the viewpoint of the long optical sheet 41. In this case, as the elongated optical sheet 41, for example, a laminate of an adhesive layer formed of an ultraviolet curable resin adhesive and a protective film is used. In the example shown in Fig. 4, the elongate optical film 33 drawn from the take-up roll 34 and the -16-200937365 elongate optical sheet 41 drawn from the take-up roll 42 by the first bonding roll 43 are used in the first bonding step. The elongate optical sheet 31 drawn from the take-up roll 32 is pressed and bonded by the other first bonding rolls 35, and the elongate shape drawn from the take-up roll 14 is pressed. The optical sheet 13 is pressed and bonded by another first bonding roll 15, and an elongated optical sheet laminate is formed. At this time, the elongated optical sheet laminate is laminated, for example, in the order of a protective film, an adhesive layer, a polarizing film, an adhesive layer, a protective film, and an adhesive film, and in the second bonding step, the adhesive film is adhered. The side is disposed on the side of the optical display element 7 and is attached to the other surface of the optical display element 7. Although not shown in the drawings, the elongate optical film or the elongate optical sheet provided in the first bonding step is attached to other elongate optical films or elongate optical sheets in the first bonding step to have an adhesive. In the case of the layer, or in the second bonding step, when the optical display element 7 is to be bonded to the optical display element 7 to have an adhesive layer, or when the adhesive film body is used to form one long optical film, in the adhesive layer or the adhesive film On the surface, it is desirable to protect the surface of the adhesive layer or the adhesive film until the other members are bonded, and generally conform to the same release film as described above. For example, in FIGS. 3 and 4, the adhesive sheet-layer which is to be attached to the elongated optical sheet 3' to be bonded to the elongated optical film 21 (polarizing film) or the same is disposed on the elongated optical sheet 13 to be attached. In the adhesive layer of the elongated optical film 31 (polarizing film), and in FIGS. 3 and 4, the adhesive film of the main body of the elongated optical films 25 and 33 corresponds to the above-mentioned adhesive layer or adhesive film. The release film provided on the surface of the adhesive layer or the adhesive film is peeled off before being bonded to other members. A specific example of the method of peeling off the release film can be described later with reference to Fig. 6 . -17- 200937365 Also, a general ultraviolet curable resin adhesive layer is applied before the adhesion treatment. 5 is a model diagram showing a first half of a preferred example of the second manufacturing method in the method of manufacturing an optical display panel of the present invention, and FIG. 6 is a second half of a preferred example of the second manufacturing method. Model mode representation. The second manufacturing method of the present invention comprises a plurality of rolls comprising an optical film having an optical function or an elongated optical sheet of the laminate, and a step of extracting the elongated optical film or the elongated optical sheet And the first bonding step of forming the elongated optical sheet laminate and the cutting of the elongated optical sheet laminate to form a truncation step of the optical sheet laminate, and bonding the elongated optical film or the elongated optical sheet to each other And a second bonding step of bonding the optical sheet laminate to the optical display element. Hereinafter, the second manufacturing method of the present invention will be described in detail with reference to Figs. 5 and 6 . The lead-out step and the first bonding step in the second manufacturing method of the present invention are the same as the lead-out step and the first bonding step in the first manufacturing method. Fig. 5 shows the same as the example shown in Fig. 1, the elongate optical sheet 1 is taken out from the take-up roll 2, and the optically long sheet 3 is taken out from the take-up roll 4, and is self-extracted while the first bonding roll 5 is pressed and bonded. The roll 12 takes out the elongated optical sheet 11, and the elongated optical sheet 13 is taken out from the take-up roll 14, and the first bonding roll 15 is pressed and bonded to form an example of each elongated optical sheet laminate. Further, as the elongated optical sheet of the elongated optical film or the laminate thereof in the second production method of the present invention, the same elongated optical film or elongated optical sheet as described above is used for the first production method. -18-200937365 In the second manufacturing method of the present invention, the elongated optical sheet laminate obtained by the first bonding step is continuously cut by a cutting step to form an optical sheet laminate. 5 shows that the elongated optical sheet laminate of the elongated optical sheet 1 and the elongated optical sheet 3 is cut by the cutting means 53 to form the optical sheet laminate 51, and the elongated optical sheet 11 and the elongated optical sheet 13 are elongated. An example in which the optical sheet laminate is cut by the cutting means 54 to form the optical sheet laminate 52 is formed.第 The second bonding step in the second manufacturing method is to bond the optical sheet laminate obtained by the cutting step to an optical display element to obtain an optical display panel of the final product. 6 shows that the optical sheet laminate 51 obtained by the cutting step shown in FIG. 5 is pressed by the second bonding roller 55 on one surface of the optical display element 7, and the optical sheet laminate 52 is placed on the optical display element 7. The other surface is pressed and bonded by the second bonding roller 56. Here, as described above, the surface of the optical display element 7 bonded to the optical sheet laminate 51 and the surface of the optical display element 7 bonded to the optical sheet laminate 52 are provided with an adhesive layer 'the surface thereof The protection of the type film is a general example. Fig. 6 shows an example in which the release film is bonded to the optical display element 7 while being peeled off from the optical sheet laminates 51 and 52. That is, in this example, after the release film 59 is peeled off by the peeling roller 57 from the surface of the optical display element 7 of the optical sheet laminate 51, the exposed adhesive layer is on one side of the optical display element 7 2 The bonding roller 55 is pressed and bonded while being self-adhered to the surface of the optical display element 7 of the optical sheet laminate 52, and after peeling off the release film 60 by the peeling roller 58, the exposed adhesive layer is applied to the optical The other surface of the display element 7 is pressed and bonded by a second bonding -19-200937365 roller 56. The peeled release film can be taken up by the recovery rolls 61, 62 as necessary. Further, in Fig. 6, the white indicator indicates the conveyance direction of the optical display element 7 and the optical sheet laminates 51, 52. In the second manufacturing method of the present invention, the type of the elongated optical film, the number of the elongated optical films, the laminated structure, or the number of rolls for elongating the optical film or the elongated optical sheet are not limited to FIG. 5 And the example shown in Fig. 6. ❹ In any of the first manufacturing method and the second manufacturing method of the present invention, each step is carried out in a continuous manufacturing step. In the first manufacturing method or the second manufacturing method, the film bonding step, the cutting step, the packing step, and the product transfer to the panel processing and manufacturing company performed by the optical member manufacturing company are omitted. The optical film of the optical display panel can be cleaner and less defective. Further, the yield of the optical sheet of the optical film or the laminate thereof is improved, and the effect of improving the use efficiency of the product is also obtained. ' and FIG. 1 and FIG. 3 to FIG. 5, although not shown, the polarizing film contained in the optical sheet laminate bonded to one surface of the optical display element and the optical sheet laminate bonded to the other surface The polarizing film contained must be arranged such that the transmission axis directions are perpendicular to each other. Therefore, when the first manufacturing method or the second manufacturing method of the present invention is carried out, for example, the polarizing plate bonding apparatus shown in Fig. 6 of JP-A-2005-37417 can be used, and in the first conveying unit, The long optical sheet laminate (in the case of the first manufacturing method) or the -20-200937365 optical sheet laminate (in the case of the second manufacturing method) is attached to one surface of the optical display element supplied and transported by the supply unit, and is in the first In the case of the manufacturing method, the optical display element transported from the first transport unit in the inverting portion is vertically inverted to the end surface on the transport direction side of the inverted optical display element. When the conveyance direction is conveyed to the second conveyance unit in the vertical direction, the second conveyance unit is disposed on the other side of the optical display element that is conveyed in a direction orthogonal to the conveyance direction of the optical display element conveyed by the first conveyance unit. The elongated optical sheet laminate or the optical sheet laminate can be attached. The outline of this form is shown in Fig. 7. That is, FIG. 7 shows the procedure of the method of FIG. 1. However, after bonding the optical sheet laminate to one surface of the optical display element, the optical display element is reversed up and down, and the transport direction is rotated by 90 degrees for optical An exemplary mode oblique view of the other surface of the display element when the other optical sheet laminate is bonded. In Fig. 7, the same components as those shown in Fig. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. In the example shown in Fig. 7, in the first transfer unit 71, the optical display element 7 is transported in one direction, and the other side (the upper side in the figure) is applied to the first transfer step according to the present invention. A second bonding step of the bonded elongated optical sheet laminate. Thereafter, the bonded elongated optical sheet laminate is cut into a size suitable for the optical display element 7 by the cutting means 74, and the optical sheet laminate is bonded to one surface of the optical display element 7. Continuing in the inversion portion 77, the optical display element 7 is reversed up and down without causing in-plane rotation, and is sent to the second transport unit 72. In the second transport unit 72, the relationship between the surface of the optical sheet laminate of the optical display element 7 and the unbonded surface of the optical sheet laminate of the optical display element 7 is inversely related to the relationship in the first transport unit 71. . In the example shown in the figure, the optical sheet laminate is bonded to the upper surface of the optical display element 7 in the first transport unit 71, and the optical sheet laminate is bonded to the second transport unit 72 by vertical inversion. The face becomes the underside of the optical display element 7. In the second transport unit 72, the transport direction of the optical display element 7 and the transport direction in the first transport unit 71 are rotated by 90 degrees in the plane. In other words, the 端面 end surface on the transport direction side of the first transport unit 71 of the optical display element 7 is reversed, and is reversed to the transport direction in the second transport unit 72, and then sent to the second transport unit. 72. In the second transport unit 72, the other surface of the optical display element 7 (the surface on which the elongate optical sheet laminate in the first transport unit 71 is not bonded) is applied again, and bonded to the first aspect according to the present invention. The other second bonding step of the elongate optical sheet laminate to which the bonding step is applied. Thereafter, the bonded elongated optical sheet laminate is cut into a size suitable for the optical display element 7 by the cutting means 75, and the optical sheet laminate is bonded to both surfaces of the optical display element 7. In the example shown in FIG. 7, the elongate optical sheet 1 drawn from the take-up roll 2 and the elongate optical sheet 3 drawn from the take-up roll 4 in the first transport unit 71 are performed by the first bonding roll 5 The pressure-bonding is applied to one surface of the optical display element 7, and is the same as the state shown on the upper side of Fig. 1 . Further, in the second conveying unit 72, the elongate optical sheet 11 drawn from the take-up roll 12 and the elongate optical sheet 13 drawn from the take-up roll 14 are press-fitted by the other first bonding rolls 15' The other side of the element 7 as sent to the optical display -22-200937365 is the same as the state shown on the lower side of Fig. 1 . When the optical display element 7 is a liquid crystal display element (liquid crystal cell), an optical sheet laminate containing the respective polarizing films is bonded to the both surfaces. In Fig. 1, an elongated optical sheet 1 and an elongated optical sheet 11 each show an example in which a polarizing film is contained. On the other hand, the polarizing film disposed in the surface of the liquid crystal display element is often arranged such that the absorption axes are in a straight relationship. Only the form shown in Fig. 7 is used. From the above description, it is understood that the absorption axis of the polarizing film disposed in the surface of the liquid crystal display element is in an orthogonal relationship. In Fig. 7, a white indicator indicates the transport direction. In the description of FIG. 1 and FIG. 3 to FIG. 7 , the case where the optical display element 7 is a liquid crystal display element (liquid crystal cell) is exemplified as an example in which the optical sheet laminate is bonded to both surfaces, but for example. In the case where the optical display element 7 is an EL display element, the fact that the single side, that is, the optical sheet laminate is bonded to the identification side display surface, can be easily understood by a trader. 〇 In the above-described production method of the present invention, the elongated optical film or the elongated optical sheet provided in the extraction step is preferably one containing a polarizing film made of a polyvinyl alcohol resin film. The polyvinyl alcohol resin is obtained by alkalizing a polyvinyl acetate resin. Examples of the polyvinyl acetate resin include polyvinyl acetate of a single polymer of vinyl acetate, and a copolymer of vinyl acetate and another monomer copolymerizable therewith. Examples of the other monomer copolymerizable with vinyl acetate include an unsaturated carboxylic acid, an olefin such as ethylene or propylene, a vinyl ether, an unsaturated sulfonic acid, and an acrylamide having an ammonium group. -23- 200937365 The degree of alkalinity of the polyvinyl alcohol resin is generally 85 to 100 mol%, preferably 98 mol% or more. These polyvinyl alcohol resins may be denatured, for example, polyvinyl formal, polyvinyl acetal, polyvinyl butyral or the like which is denatured with an aldehyde. Further, the degree of polymerization of the polyvinyl alcohol resin is usually in the range of from 1,000 to 10,000, preferably from 1,500 to 5,000. The polyvinyl alcohol resin is used as a film-forming material and can be used as a film of a polarizing film (ROLLED WEB). The method of forming a film of polyvinyl alcohol resin is not particularly limited, and it can be formed into a film according to a conventionally known suitable method. The film thickness of the film to be taken up from the polyvinyl alcohol resin is not particularly limited, and is, for example, about 10 to 150 μm. The polarizing film is generally a step of adsorbing the dichroic dye by dyeing the polyvinyl alcohol resin film with a dichroic dye (dyeing step), and adsorbing the polyvinyl alcohol resin film of the dichroic dye to the boric acid aqueous solution. The treatment step (boric acid treatment step) and the step of washing with the aqueous boric acid solution followed by a water washing step (water washing treatment step) are carried out. Further, when a polarizing film is produced, the polyvinyl alcohol resin film is generally extended by one axis, but the one-axis stretching may be performed before the dyeing treatment step, or may be performed in the dyeing treatment step, or may be performed after the dyeing treatment step. The one-axis extension may also be performed before the boric acid treatment step, or may be carried out in the boric acid treatment step, when the one-axis extension is performed after the dyeing treatment step. Of course, one-axis extension is possible in these several stages. The one-axis extension may extend between the rolls having different circumferential speeds as one axis, or may be extended to one axis using a heat roll. Further, it may be a dry extension which is extended in the atmosphere, or may be swelled in a solvent, and may be extended in a wet extension extending from -24 to 200937365. The stretching ratio is generally 3 to 8 times. The dyeing of the dichroic color of the polyvinyl alcohol resin film in the dyeing step is carried out, for example, by impregnating a polyvinyl alcohol resin film with an aqueous solution containing a dichroic dye. As the dichroic dye, for example, iodine, a dichroic dye or the like can be used. The dichroic dye includes, for example, c. l. A dichroic direct dye made of a dichroic direct dye such as DIRECT RED 39, a compound such as a dichroic direct dye, a tripaze or a tetrazide. Further, it is preferred that the polyethylene oxime resin film is subjected to immersion treatment of water before the dyeing treatment. When iodine is used as the dichroic dye, it is generally used in a method of dyeing a polyvinyl alcohol resin film in an aqueous solution containing iodine and potassium iodide. The iodine content in the aqueous solution is generally 0% per 100 parts by weight of water. 01〜1 parts by weight, the content of potassium iodide is generally 0% per 100 parts by weight of water. 5 to 20 parts by weight. When iodine is used as the dichroic dye, the temperature of the aqueous solution used for dyeing is generally 20 to 40 ° C, and the immersion time (dyeing time) for the aqueous solution is generally 20 to 1800 seconds. ® On the one hand, when a dichroic dye is used as a dichroic dye, it is generally thinner in an aqueous solution containing an aqueous dichroic dye.  Membrane dyeing method. The content of the dichroic dye in the aqueous solution is generally 100 parts by weight per 100 parts by weight, preferably 1 x 10 · 4 to 1 part by weight 'preferably 1 χ 1 (Γ 3 to 1 part by weight, particularly preferably 1 χ 10 · 3 〜 χ 10 2 weight) The aqueous solution may contain an inorganic salt such as sodium sulfate as a dyeing assistant. When a dichroic dye is used as the dichroic dye, the temperature of the aqueous dye solution used for dyeing is generally 20 to 80 ° C, and the aqueous solution is further used. The immersion time (dyeing time) is generally 10 to 18 sec. -25- 200937365 The boric acid treatment step is carried out by impregnating a polyvinyl alcohol resin film dyed with a dichroic dye in an aqueous solution containing boric acid. The amount of boric acid in the aqueous solution is usually 2 to 15 parts by weight, preferably 5 to 12 parts by weight per 100 parts by weight of water. The dichroic dye used in the dyeing treatment step is used for the boric acid when iodine is used. The aqueous solution containing boric acid in the treatment step is preferably potassium iodide. In this case, the amount of potassium iodide in the aqueous solution containing boric acid is usually from 1 to 15 parts by weight, preferably from 5 to 12 parts by weight per 100 parts by weight of water. The immersion time of the aqueous solution containing boric acid is generally 60 to 1200 seconds, preferably 150 to 600 seconds, more preferably 200 to 400 seconds, and the temperature of the aqueous solution containing boric acid is generally 50 ° C or more. Preferably, it is 50 to 8 5 ° C, more preferably 60 0 to 80 ° C. Continue to be in the water washing treatment step 'to treat the above-mentioned boric acid-treated polyvinyl alcohol resin film, for example, by immersing in water for washing The water temperature in the water washing treatment is generally 5 to 40 ° C, and the immersion time is generally 1 to 120 seconds. After the water washing treatment, a general drying treatment is carried out to obtain a polarizing film. Drying © treatment, for example, using a suitable hot air dryer, far The temperature of the drying treatment is usually 30 to 100 ° C, preferably 50 to 8 ° C. The drying treatment time is generally 60 to 600 seconds, preferably 120 to 600. In the manufacturing method of the present invention, the elongated optical film or the elongated optical sheet which is supplied to the extraction step preferably contains the polarizing film as described above, and is an elongated optical sheet (polarizing plate) containing a polarizing film, specifically Give the following -26- 200937365 UU with the film, the UU is the ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a C-bias film of thin A-light, the thin film of P- (B) having a polyvinyl alcohol resin film, an adhesive layer formed on at least one side of the polarizing film, and a layer protecting the adhesive layer a polarizing plate for a release film, (C) a polarizing film made of a polyvinyl alcohol resin film, a protective film made of a thermoplastic resin adhered to one side of the polarizing film, and the other side of the polarizing film. a formed adhesive layer, a polarizing plate for protecting the release film of the adhesive layer, (D) a polarizing film made of a polyvinyl alcohol resin film, and a thermoplastic resin attached to one side of the polarizing film A protective film formed, an adhesive layer formed on the outer surface of the protective film, and a polarizing plate for protecting the release film of the adhesive layer. In the polarizing plate 具有 having the release film of (B) to (D), the release film is peeled off during the first bonding step or the second bonding step, and the adhesive film is exposed. The agent layer is provided for bonding to other optical films, or optical sheets or optical display elements. For the polarizing plate as described above, the protective film made of the aforementioned thermoplastic resin may be, for example, (a) a cycloolefin resin film, (b) a cellulose ester resin film, (c) a polyethylene terephthalate resin. Film, (d) (meth)acrylic resin film, (e) polypropylene resin, and the like. These thermoplastic resin films are attached to at least one side of the polarizing film to form an elongated optical sheet (polarizing plate), and can be provided in the extraction step of -27-200937365. These thermoplastic resin films can be used alone as long. The optical film is provided in the step of extracting, and may be attached to at least one surface of the polarizing film in the first bonding step. These thermoplastic resin films will be described in further detail below. (a) Cyclic Olefin Resin Film The cycloolefin resin used in the production method of the present invention is, for example, a unit of a monomer having a cyclic olefin (cycloolefin) such as norbornene or polycyclic norbornene monomer. Thermoplastic resin (also known as thermoplastic cyclic olefin tree resin). In the present invention, the cycloolefin resin may be a ring-opening polymer of the above cyclic olefin or a hydrogenated product of a ring-opening copolymer of two or more kinds of cyclic olefins, or may have a cyclic olefin and a chain olefin, and a vinyl group. An addition polymer such as an aromatic compound. Also, it is effective to introduce a polar base. When a copolymer having a cyclic olefin, a chain olefin, or a vinyl group-containing aromatic compound is used, examples of the chain olefin include ethylene, propylene, etc., and an aromatic compound having an ethyl group, which is exemplified. Benzophenone, α-methylstyrene, nuclear alkyl-substituted styrene, and the like. The thus-copolymerized oxime may be 50 mol% or less (preferably 15 to 50 mol%) of the monomer of the cycloolefin. In particular, when a ternary copolymer having a cyclic olefin and an aromatic compound of a chain olefin and a vinyl group is used, the unit of the monomer formed from the cyclic olefin may be a relatively small amount as described above. For the ternary copolymer, the unit of the monomer formed by the chain olefin is generally 5 to 80 mol%, and the unit of the monomer formed of the aromatic compound having a vinyl group is generally 5 to 8 0 mole %. As the cycloolefin resin, a suitable commodity can be used. For example, Topas -28-200937365 (manufactured by Ticona Co., Ltd.), Ayton (manufactured by JSR Co., Ltd.), ZEONOR (manufactured by Sakamoto Co., Ltd.), and ZEONEX (ΖΕΟΝΕΧ) can be used. Japan zeon (share) system, appel (Mitsui Chemical Co., Ltd.) and so on. When a cycloolefin resin is formed into a film, a known method such as a solvent casting method or a melt extrusion method can be applied. Further, for example, a film made of a film of a cycloolefin derived from a film such as Na (made by Sekisui Chemical Co., Ltd.), SCA40 (made by Sekisui Chemical Co., Ltd.), or a ZEONOR film (manufactured by OPTES) may be used. Selling goods. The cycloolefin resin film may be one-axis extension or biaxial extension. By stretching, any phase difference 値 can be imparted to the cycloolefin resin film. The stretching is carried out continuously while rolling out the film roll as a side, and in the heating furnace, the direction in which the rolls proceed, the direction perpendicular to the direction of progress, or both. The temperature of the heating furnace is generally in the range from the vicinity of the glass transition temperature of the cyclic olefin resin to the glass transition temperature + 100 °C. The extension ratio is generally 1. 1 to 6 times, preferably 1. 1~3. 5 times. When the cycloolefin resin film is in the form of a roll, the films adhere to each other and tend to cause agglomeration. Therefore, the film is generally rolled after the protective film is attached.  take. Further, the cycloolefin resin film generally has a poor surface activity, so that the surface of the polarizing film and the adhered surface is preferably subjected to surface treatment such as plasma treatment, corona treatment, ultraviolet irradiation treatment, flame treatment or alkalization treatment. Among them, plasma treatment and corona treatment which are relatively easy to implement are preferred. When such a cycloolefin resin film is used, the polarizing plate used in an optical display panel such as a liquid crystal panel in the past has the same configuration as a result, and the quality of the optical display panel or the product use efficiency is improved. -29- 200937365 (b) Cellulose ester resin film Further, the cellulose ester resin film used in the production method of the present invention is a film of a partially or fully esterified cellulose, and for example, acetic acid derived from cellulose A film formed from esters, propionates, tyrosates, mixed esters, and the like. More specifically, a triethylenesulfonated cellulose film, a diethylidene cellulose film, a cellulose acetate propionate film, a cellulose acetate propionate film, or the like can be given. As such a cellulose ester resin film, a commercially available product can be used. For example, fujitac TD80 (made by Fujifilm Co., Ltd.), ◎ fujitac TD80UF (made by Fujifilm Co., Ltd.), fujitac TD80UZ (made by Fujifilm Co., Ltd.), KC8UX2M (for KC8UX2M) can be used. Konicaminolta (share) system, KC8UY (Konicaminolta (stock) system), etc. Further, in the production method of the present invention, a cellulose ester resin film which imparts phase difference characteristics can be used, and as a commercial product of a cellulose ester resin film which imparts phase difference characteristics, WV BZ 43 8 (Fuji film) )), KC4FR-1 (Konicaminolta (stock) system), etc. Further, it is also possible to use a cellulose ester resin film having a phase difference in the in-plane or/and thickness direction to be substantially negligible & to a very small extent, as a substantially non-oriented cellulose ester resin film. For the product, KC4UEW (Κ ο nicami η ο 11 a (share) system) and the like can be cited. When such a cellulose ester resin film is used, the polarizing plate used in an optical display panel such as a liquid crystal panel in the past has the same configuration as a result, and the quality of the obtained optical display panel or the product use efficiency is improved. (c) Polyethylene terephthalate resin film -30- 200937365 The so-called polyethylene terephthalate is composed of polyethylene terephthalate of 80 mol% or more of repeating units. Resin. Examples of the other copolymerization component include isophthalic acid, Ρ-β-oxyethoxybenzoic acid, 4,4′-dicarboxydiphenol, 4,4′-dicarboxybenzophenone, and bis ( Examples of the dicarboxylic acid component such as 4-carboxyphenyl)ethane, adipic acid, sebacic acid, 5-sodium thioisophthalic acid, and 1,4-dicarboxycyclohexane are exemplified by propylene glycol and dibutyl phthalate. A diol component such as an alcohol, neopentyl glycol, diethylene glycol, cyclohexanediol, an epoxy oxirane adduct of bisphenol oxime, polyethylene glycol, polypropylene glycol, or polytetramethylene glycol. These dicarboxylic acid components or glycol components may be used in combination of two or more kinds as necessary. Further, an oxycarboxylic acid such as P-oxybenzoic acid may be used together with the dicarboxylic acid component or the glycol component. Such other copolymerization component may also be a compound containing a small amount of a guanamine bond, a urethane bond, an ether bond, or a carbonate bond. As a method for producing polyethylene terephthalate, a so-called direct polymerization method in which terephthalic acid and ethylene glycol are directly reacted, a dimethyl ester of p-phthalic acid and ethylene glycol can be applied. Any production method such as a so-called transesterification reaction in which a transesterification reaction is carried out. Further, known additives may be included as necessary. For example, it may contain a slip agent, an agglomerating agent, a heat stabilizer, an antioxidant, an antistatic agent, a light stabilizer, a flushing improver, and the like. However, in optical applications, since transparency is necessary, it is preferable to control the addition amount of the additive to a minimum. The method for producing the polyethylene terephthalate film used in the present invention is not particularly limited, and examples thereof include melting a polyethylene terephthalate of a raw material resin and forming the extrusion into Flaky non-oriented thin film -31 - 200937365 The film is subjected to a heat setting treatment after being horizontally stretched by a tenter at a temperature higher than the glass transition temperature. The extension temperature is 80 to 13 (TC, preferably 90 to 120 ° C, and the stretching ratio is 2. 5 to 6 times, preferably 3 to 5. 5 times. When the stretching ratio is lowered, the transparency of the film may be poor, which is not preferable. Further, from the viewpoint of reducing the deformation of the orientation main axis in the polyethylene terephthalate film, it is preferred that the film is subjected to relaxation treatment in the longitudinal direction before the transverse stretching and before the heat setting treatment. The temperature of the relaxation treatment is 90 to 200 ° C, preferably 120 to 180 ° C. The amount of slack varies depending on the cross-stretching strip, but the amount of slack and the temperature are set such that the film after the relaxation treatment has a heat shrinkage ratio of 2% or less at 150 °C. The temperature of the heat setting treatment is generally 180 to 250 ° C, preferably 200 to 245 ° C. The heat setting treatment is carried out by first treating at a predetermined temperature for a predetermined length, and applying a relaxation treatment to a relaxation ratio of 1 to 10% (preferably 2 to 5%) in the width direction of the film. By thus reducing the deformation of the oriented main shaft, a monoaxially stretched polyethylene terephthalate film excellent in heat resistance can be obtained. In the present invention, the maximum strain 定向 of the oriented spindle is used as a film of polyethylene terephthalate having a degree of not more than 1 Torr, preferably 8 degrees or less, more preferably 5 degrees or less. When a polyethylene terephthalate film having a maximum strain of the oriented spindle of more than 10 degrees is used, when the polarizing plate is bonded to the liquid crystal display of the liquid crystal display device using such a polyethylene terephthalate film, There is a tendency to poor coloration. Further, the maximum strain of the orientation main axis in the above polyethylene terephthalate film can be measured by, for example, a phase difference film inspection apparatus RETS system (manufactured by Otsuka Electronics Co., Ltd.). -32- 200937365 Polyethylene terephthalate film has a thickness of 20 to 60 μm. The film preferably has an in-plane phase difference 値R0 of 100 nm or more, and more preferably 3 000 nm or more. Further, in the polyethylene terephthalate film, smog can be imparted, and as a method of imparting smog, for example, a method of mixing inorganic fine particles or organic fine particles in a raw material resin, and inorganic fine particles on the surface of the film can be mentioned. Or a coating liquid coating method in which the organic fine particles are mixed with the resin adhesive, but the invention is not limited thereto. As the inorganic fine particles, ceria, colloidal ceria, alumina, alumina sol, aluminosilicate, alumina-cerium oxide composite oxide, clay, talc, mica, calcium carbonate, calcium phosphate, etc. can be used. As a representative. Further, as the organic fine particles, heat-resistant resin particles such as crosslinked polyacrylic acid particles, crosslinked polystyrene particles, crosslinked polymethyl methacrylate particles, polyoxyxylene resin particles, and polyamidene particles can be used. The polyethylene terephthalate film having the above characteristics is excellent in mechanical properties, solvent resistance, scratch resistance, cost, and the like. When such a polyethylene terephthalate resin film is used, compared with a polarizing plate used in an optical display panel such as a liquid crystal panel in the past, there is an effect that a polarizing plate having a thinner thickness and the same strength can be obtained. Further, when a polyethylene terephthalate film is used, the surface facing the polarizing film of the polyethylene terephthalate film may be opposite to the surface, and anti-glare treatment or hard coating may be applied. Surface treatment such as treatment and antistatic treatment. Further, a coating layer made of a liquid crystal compound or a high molecular weight compound thereof may be formed. And, instead of the polyethylene terephthalate film, a polyethylene naphthalate film can be used as -33- 200937365. (d) (meth)acrylic resin film As the film of the (meth)acrylic resin, each of the acrylic resin or the methacrylic resin may be used alone or in combination, and if necessary, the acrylic rubber particles may be mixed and melt-kneaded. The acrylic resin material obtained after that is formed into a film shape by a melt extrusion method. The (meth)acrylic resin may contain general additives such as an ultraviolet absorber, an organic dye, a pigment, an inorganic pigment, an antioxidant 'antistatic agent, a surfactant, and the like. The film of the (meth)acrylic resin can be combined with a layer having intragranular scattering or a layer imparting extragranular scattering as a multilayer structure. When the scattering property is to be imparted, the fine particles may be mixed and melt-kneaded. When the film of the (meth)acrylic resin is provided on the identification side of the liquid crystal panel, it is preferable to apply a surface treatment (hard coating layer, antiglare layer, antireflection layer, antifouling layer, antistatic layer, etc.) on the surface thereof. . When such a (meth)acrylic resin film is used, it is effective in obtaining a polarizing plate having excellent surface hardness or rigidity as compared with a polarizing plate used in an optical display panel such as a conventional liquid crystal panel. (e) Polypropylene resin film The polypropylene resin used in the production method of the present invention is a resin mainly composed of a propylene unit, and is generally crystalline, and may be propylene or the like in addition to the propylene alone polymer. a copolymer of copolymerizable co-monomers. The comonomer copolymerized with propylene may be, for example, ethylene or an α-olefin having 4 to 20 carbon atoms. -34- 200937365 When a polypropylene resin film is used, the polypropylene resin film is soluble in xylene at 20 ° C to 1% by weight or less, preferably 8% by weight or less, more preferably 0. 5% by weight or less. When the xylene soluble fraction of the polypropylene resin film exceeds 1% by weight, exposure of the polarizing plate to a high temperature environment causes whitening of the surface of the polypropylene resin film, and the transmittance of the polarizing plate is remarkably lowered. The whitening of the surface of the polypropylene resin film in such a high temperature environment is presumed to be caused by the leakage of the low molecular weight component present in the resin film. The typical example of the low molecular weight component is not particularly limited, and examples thereof include a random stereogenic low molecular weight oligomer. The xylene soluble fraction (% by weight) of the polypropylene resin film can be measured as follows. Namely, first, 5 g of the propylene resin film was boiled, and then xylene 50 〇mi was added thereto, and after completely dissolved, the temperature was lowered to 20 ° C and kept at 20 ° C for 4 hours. The xylene solution was further filtered, and the precipitate and the filtrate were separated, and the solvent was removed from the filtrate, and dried at 70 ° C under reduced pressure to obtain a dried solid solution of xylene. The xylene soluble fraction can be obtained by the following formula. ❹ xylene soluble fraction [% by weight] = (weight of dry xylene dissolved into parts [g]) / (5 [g]) χΙΟΟ As a polypropylene resin constituting the aforementioned polypropylene resin film, use two The toluene soluble fraction is preferably 1% by weight or less, more preferably 0. Below 8 wt%, 'extra good is 0. 5% by weight or less of the polypropylene resin. The method for measuring the soluble fraction of toluene of the polypropylene resin is the same as that of the above-mentioned polypropylene resin film. The polypropylene resin may be a polypropylene-35-200937365 olefin resin obtained by a separate polymer of propylene, or a copolymer of propylene and other monomers copolymerizable therewith. Also, you can use this. Examples of the other monomer copolymerizable with propylene include ethylene and an α-olefin. As the α-olefin, an α-olefin having 4 or more carbon atoms is preferred, and an α-olefin having 4 to 1 carbon atoms is preferred. Specific examples of the olefin having 4 to 1 carbon atoms include, for example, 1-butene, 1-pentene, hexene, heptene, 1-octene, 1-decene, and the like. a linear monoolefin; a branched monoolefin such as 3-methyl-indole-butene, 3-methyl-1-pentene or 4-methyl-1-pentene; and ethylene/cyclohexane. The copolymer of propylene and other monomers copolymerizable therewith may be a random copolymer or a block copolymer. When the above-mentioned copolymer is used as the polypropylene resin, since the polypropylene resin which is soluble in xylene and is not more than 9% by weight is easily obtained, the copolymerization ratio of the other monomer copolymerized with propylene is 8 wt% or less. It is better when it is 4% by weight or less. Further, the content ratio of the constituent units derived from the other monomers in the copolymer can be determined by infrared (IR) spectrometry according to the method "Method" described on page 616 of the "Handbook of Polymer Analysis" (published by Kiyoshiya Shoten, 1995). And ask for it. In the foregoing, 'as a polypropylene resin constituting a polypropylene resin film, a single polymer of propylene, a propylene-ethylene random copolymer, a propylene-1-butene random copolymer, and a propylene-ethylene-dibutyl group are used. Alkene random copolymers are preferred. These individual polymers and copolymers are relatively easy to obtain a polymer having a reduced xylene soluble fraction by selection of a suitable polymerization catalyst or the like. In particular, it is a single polymer of propylene, which has a tendency to obtain a polymer having a reduced xylene soluble fraction. -36- 200937365 Further, the stereoregularity of the acrylic resin constituting the polypropylene resin film is preferably in the form of a general gauge or a syndiotactic type. The polypropylene resin film which is substantially made of a polypropylene resin having a stereoregularity or a syndiotactic type has a relatively good handleability and excellent mechanical strength in a high temperature environment. Further, in the polypropylene resin having such a three-dimensional regularity, in the polymerization stage, a random three-dimensional low molecular weight component which causes whitening of the polarizing plate is less likely to occur, and it is easy to obtain a polarized light which is suppressed in a high-temperature environment. board. The method of reducing the xylene soluble fraction of the polypropylene resin to 1% by weight or less is not particularly limited, and examples thereof include a method of increasing the polymerization degree of the polypropylene resin in the polymerization stage and relatively reducing the ratio of the low molecular weight component. A method in which a polypropylene resin obtained by polymerization is washed with a solvent, and a solvent-soluble component such as a low molecular weight component is extracted and removed, and a combination of these methods is known. Further, for example, a polymerization catalyst is appropriately selected, and the stereoregularity of the polypropylene resin is controlled to a general-type or syndiotactic state, and/or a polypropylene resin obtained by separately polymerizing propylene or the like. When the toluene soluble fraction is 1% by weight or less, it is not necessary to reduce the xylene soluble fraction of the propylene resin obtained by the polymerization. The film forming method of the polypropylene resin is not particularly limited, and examples thereof include a solvent casting method in which a resin dissolved in an organic solvent is cast on a flat plate by a press molding method of a molten resin, and a solvent is removed to form a film. From the viewpoint of productivity, it is preferred to use an extrusion molding method. At this time, the polypropylene resin is based on JIS K 7210, with a temperature of 23 0 ° C and a load of 21. The melt index (MFR) measured at 18N is 0. 1~200 g/10 minutes is better than -37- 200937365 0. It is preferably in the range of 5 to 50 g/10 minutes. By using a polypropylene resin having an MFR within this range, an excessive load on the extruder is not caused, and a uniform polypropylene resin film can be obtained. The polypropylene resin film used in the present invention is preferably one having excellent transparency, and specifically, the total haze measured in accordance with JIS K 7105 is 10% or less, preferably 7% or less. Further, the thickness of the protective film made of the polypropylene resin film is preferably from 5 to 200 μm. It is preferably ΙΟμηι or more and more preferably 150 μm or less. © Polypropylene resin film can be obtained by one-axis extension or two-axis extension. By extending, the polypropylene resin film can impart any phase difference 値. The stretching is generally carried out while the film roll is being wound up, and is extended in the direction in which the heating furnace or the roll is moved, in the direction perpendicular to the direction of progress, or in both directions. The temperature of the furnace is generally in the range of the glass transition temperature of the polypropylene resin to the glass transition temperature + 100 °C. The extension ratio is generally 1. 1 to 6 times, preferably 1. 1~3. 5 times. When the polypropylene resin film is in the form of a roll, the films adhere to each other and tend to cause agglomeration, and the roll is usually rolled after the protective film is attached. Further, since the cycloolefin resin film generally has a poor surface activity, surface treatment such as plasma treatment, corona treatment, ultraviolet irradiation treatment, flame treatment or alkalization treatment is preferred on the surface to which the polarizing film is adhered. Among them, plasma treatment and corona treatment which are easier to implement are preferred. When such a polypropylene resin film is used, the polarizing plate used in an optical display panel such as a liquid crystal panel in the past has the same configuration as a result, and the quality of the optical display panel or the product use efficiency is improved. -38- 200937365 The above-mentioned cycloolefin resin film, cellulose ester resin film, polyethylene terephthalate resin film, (meth)acrylic resin film, or polypropylene resin film is used as a protective film for a polarizing film. It is preferable to use it as a protective film of a polycarbonate resin film, a polypropylene resin film, or a polarizing film. Further, in the production method of the present invention, a release film having self-adhesiveness is laminated on at least one surface of the polarizing film, and a release film may be used after peeling off the release film. As such a release film, a film formed of a polyethylene resin or a polypropylene resin can be given. As a preferred commercial product of the release film having such self-adhesive properties, for example, "Toraytec" made of Polyethylene resin which is commercially available from Toray Co., Ltd., and "Sun" purchased by Sun A Chemical Co., Ltd. Sunytect" and so on. Further, the peeling film is preferably a defect such as a fisheye. When a peeling film having such a defect is used, the polarizing film transfers a shape and becomes a defect of a polarizer. Further, in the manufacturing method of the present invention, optical functions such as an anti-glare function, a reflection preventing function, a hardness increasing function, and a brightness improving function can be bonded to the opposite side and the opposing surface of the optical display element 偏 of the polarizing plate. .  Film or optical sheet. As an elongated optical film or an elongated optical sheet having such optical functionality, for example, a liquid crystal compound is coated on a surface of a substrate, and an optical compensation film oriented is transmitted through a certain polarized light, and the reflection display has the opposite property. a polarizing-light reflective polarizing film, a retardation film made of a polycarbonate resin, a retardation film made of a cyclic polyolefin resin, an anti-glare film having a concave-convex shape on the surface, and a surface reflection A film that prevents function -39- 200937365, a reflective film that has a reflective function on the surface, and a semi-transmissive reflective film that has both a reflective function and a transmissive function. A liquid crystal compound is applied to the surface of the substrate, and as a commercial product corresponding to the oriented optical compensation film, a WV film (made by Fujifilm Co., Ltd.), an NH film (manufactured by Nippon Oil Co., Ltd.), and NR are mentioned. Film (Nippon Oil Co., Ltd.) and so on. For example, DBEF (made by 3M Company, Japan can be purchased from Sumitomo 3M), and APF (for example, a reflective polarizing film that transmits polarized light having a property opposite to the display by a certain kind of polarized light) 3M company system, Japan can be purchased by Sumitomo 3M (shares) and so on. In addition, as a commercial product of the phase difference film which consists of a cyclic polyolefin resin, the sub-film (JSR (manufactured by JS)), Escena (made by Sekisui Chemical Co., Ltd.), ZEONOR film ( (shares) OPTES system) and so on. Further, in the production method of the present invention, it is preferred that at least one of the bonded elongated optical films contains an adhesive film and/or an adhesive film. Further, before the first bonding step or the second bonding step, the adhesive layer and/or the adhesive layer may be formed by the coating device on the elongated optical film, the elongated optical sheet or the elongated optical sheet laminate. Agent layer. In the production method of the present invention, the adhesive (pressure-sensitive adhesive) used for the adhesive film or the adhesive layer is not particularly limited, and examples thereof include acrylic resins, urethane resins, natural or synthetic rubbers which have been conventionally known. The adhesive containing a resin, a vinyl ether resin, or a polyoxyxylene resin as a main component is preferably an acrylic resin or a urethane resin as a main component from the viewpoint of excellent weather resistance, and an acrylic resin as a main component. The composition is special -40-200937365. In the manufacturing method of the present invention, the adhesive used for the adhesive film or the adhesive layer is not particularly limited, and examples thereof include a photocurable resin, an ultraviolet curable resin, a thermosetting resin, and a moisture-hardening type. Adhesive such as resin. Among them, an ultraviolet curable resin adhesive is preferred from the viewpoint of excellent hardening speed and easy installation of the device. The ultraviolet curable resin adhesive which is particularly suitable for use in the production method of the present invention, for example, oxime, epoxy resin, acrylic resin, oxetane resin, urethane resin, polyvinyl alcohol resin Adding a radical polymerization type initiator and/or a cationic polymerization type initiator to the same. Among them, a cationic polymerization type initiator is preferably added to a mixture of an epoxy resin having no alicyclic epoxy resin and an alicyclic structure. As a method of forming the ultraviolet curable resin adhesive layer, a method of applying an adhesive coating coating surface to a thermoplastic resin film used as the protective film described above in a state where an ultraviolet curable resin adhesive is not cured can be used. Or, after the ultraviolet curable resin adhesive is dropped between the polarizing film and the protective film in an uncured state, it is uniformly pressed by a roller or the like.  The method of extending the press and so on. The coating method of the ultraviolet curable resin adhesive for the protective film is not particularly limited, and for example, a doctor-blade, a wire-bar coating, or a die coater can be used. Various coating methods such as spot coating and gravure coater. Further, after the ultraviolet curable resin adhesive is dropped between the polarizing film and the protective film, it is pressed by a roll and uniformly pressed into the stretched square-41 - 200937365 method, and the material of the roll can be used as a metal. Or rubber, etc. After the ultraviolet curable resin adhesive is dropped between the polarizing film and the protective film, the two rolls sandwiched by the two sides can be made of the same material by the method of 'pressing and pressing between the roll and the roll. Or different materials. Further, in the above-mentioned first manufacturing method or second manufacturing method of the present invention, in the field, an elongated optical film to be used for the extraction step can be realized by suitably combining a device which has been widely used from the past. The means for ejecting the elongated optical sheet from the take-up roll is not particularly limited, and a suitable apparatus known in the past can be used. It is preferable to use a device having a power-dissipating device from the viewpoint of preventing static electricity of the elongated optical film or the elongated optical sheet. Further, in the first bonding method of the first manufacturing method or the second manufacturing method of the present invention, two or more adhesive or adhesive long optical sheet laminates must be bonded in the width direction. When the optical display element is a liquid crystal display element and the elongate optical sheet laminates are bonded to each other on both sides, at least two of the first bonding rolls used in the first bonding step are required. In this case, it is also possible to use only two or more first bonding rolls in the formation of the elongated optical 薄片 sheet laminate to be bonded to one of the optical display elements. The elongated optical film and the elongated optical sheet which are aligned in the width direction are preferably laminated in an appropriate manner in accordance with the desired structure, and are bonded by pressing between the first bonding rolls. The number of sheets of the elongated optical film which is usually bonded at the same time in the first bonding step is in the range of 2 to 4 sheets. Further, the surface of the elongated optical sheet laminate to be bonded in the first bonding step may be subjected to surface treatment by, for example, a device which is subjected to surface modification such as corona treatment, plasma treatment or flame treatment. Among them, the surface modification effect is excellent, and the installation of the device is simple. -42- 200937365, it is better to constitute a corona treatment. In the second bonding step of the first manufacturing method or the second manufacturing method of the present invention, a polarizing plate and a liquid crystal having a roller (second bonding roller) used in a manufacturing apparatus for a general liquid crystal panel are used. A bonding device for display components. As a bonding apparatus used in the second bonding step, for example, an elongated optical sheet laminate or an optical sheet laminate is provided on one side of the optical display element to provide a mechanism for correcting the position, or to peel off the adhesive layer. The mechanism of the release film to which the agent layer or the adhesive layer is attached. The bonding device used in the second bonding step may be a mechanism for bonding an elongated optical sheet laminate or an optical sheet laminate on one surface of each optical display element, or may be an optical display member. A mechanism for simultaneously bonding an elongated optical sheet laminate or an optical sheet laminate on both sides. The roller used for the bonding in the first bonding step and the second bonding step is preferably a combination of a '2' with a rubber roller or a combination of a rubber roller and a metal roller. In the case of a rubber roller, the hardness is preferably in the range of 60 to 80 degrees under the Shore C ® scale of JIS K 630 1. If the hardness is lower than 60 degrees, pressure unevenness is likely to occur, and when it is higher than 80 degrees, damage may occur.  To the film. Examples of the material of the rubber include urethane rubber, butyl rubber, nitrile rubber, EP DM rubber, and polyoxyethylene rubber. From the viewpoint of durability, EPDM rubber or polyoxyethylene rubber is preferred. The cutting means used in the cutting step in the first manufacturing method or the second manufacturing method of the present invention may be a generally used optical sheet cutting device or an optical sheet striking device. Further, the cutting means used in the first manufacturing method may further include a portion in which the elongated optical sheet laminate bonded to the optical display element of Fig. 43-200937365 is cut off, and the unnecessary portion of the optical display element is removed. Or an end portion of the optical display element after the removal, and a device for beautifying the cut end surface of the bonded optical sheet laminate. Further, the cutting means used in the second manufacturing method may further include means for beautifying the end surface of the cut optical sheet laminate before bonding the optical display element. Further, the cutting device used in the second manufacturing method may further include a take-out device in which the optical sheet laminate that has been cut in the cutting step is bonded to the optical display element, and the device is a device for taking out the optical sheet layer. A bonding apparatus of a sheet and a liquid crystal display element used in a manufacturing apparatus of a general liquid crystal panel can be used. The invention is illustrated in more detail by the following examples, but the invention is not limited by these examples. [Embodiment] <Example 1> An example in which a liquid crystal panel was produced by the first manufacturing method of the present invention was produced according to the method shown in Fig. 1 . (Polarizing film) A polyvinyl alcohol film having a thickness of about 2400 and an alkalinity of 99.9 mol% or more and a thickness of 75 μm is kept under tension and immersed in 3 (TC pure water to swell, wherein In the long direction, the stretching ratio is 1 to 3 times. The polyvinyl alcohol film is immersed in an aqueous solution containing iodine and potassium iodide at 30 ° C in the state of the above stretching ratio (iodine: iodide - 44 - 200937365 potassium: water = 0.05) : 2: 1 00 (by weight)), dyeing, and further immersed in an aqueous solution (potassium iodide: boric acid: water = 12: 5: 1 〇〇 (weight ratio)) containing potassium iodide and boric acid at 45 °C After the combination treatment, the dyeing and crosslinking treatment steps were extended to a total magnification of 5.6 times. Thereafter, the mixture was washed with pure water at 12 ° C. The washed polyvinyl alcohol film was kept at a temperature. Drying in a drying oven at 65 ° C for 3 minutes, thereby obtaining a polarizing film in which iodine is adsorbed and oriented in polyvinyl alcohol. 〇 (Polarizing plate roll) Further, in 100 parts by weight of water, carboxyl-denatured polyvinyl alcohol is dissolved. (Kuraray p〇valKL318, (share) Kurara y) 3 parts by weight of a water-soluble polyamide resin (SUMIREZ RESIN 650, manufactured by Sumika Chemtex Co., Ltd.) (aqueous solution having a solid concentration of 30%) of 1.5 parts by weight to prepare a polyvinyl alcohol resin as a main component An adhesive for water of a component. A biaxially stretched film of a norbornene resin (ZEONOR film, made of OPTES, thickness 80 μm) which has been previously subjected to corona treatment on one side of a polarizing film produced by the above method. After laminating with the above-mentioned adhesive, it is dried at 80 ° C for 5 minutes while maintaining tension, and then slit into a width corresponding to the width of the panel. Secondly, it is applied to the surface of the norbornene resin film. Under corona treatment, an acrylic adhesive layer is formed on the corona-treated surface, and a release film is formed on the surface of the adhesive layer to form a roll shape. Thereby, a polarizing film and a norbornene are obtained. A polarizing plate roll in which a resin film and an adhesive layer (with a release film) are laminated in this order. -45- 200937365 (surface-treated film roll) on the surface of triethylenesulfide cellulose having a width corresponding to the width of the panel A surface-treated film having an anti-glare treatment layer of 83 μm (a matte hard-coated TAC film DS-LR2, manufactured by Dainippon Printing Co., Ltd.) is formed with an acrylic adhesive layer on the surface of the triacetin-based cellulose. The surface of the layer of the agent layer is provided with a release film in the form of a roll, thereby obtaining a surface-treated film roll with an adhesive layer. 〇 (polyethylene terephthalate protective film roll) in the corresponding panel width One of the widths of the shaft extending on the surface of the polyethylene terephthalate film (thickness: 45 μm), after applying a corona treatment, forming an acrylic adhesive layer, and providing a release film on the surface of the adhesive layer In this state, it becomes a roll shape. Thereby, the protective film with the adhesive layer is light. (Liquid Crystal Panel) Using the polarizing plate roll, the surface treated film roll with the adhesive layer, and the protective film roll, as shown in Fig. 1, a liquid crystal panel was produced by the first manufacturing method of the present invention. That is, the polarizing plate roll is taken out as the elongated optical sheet 1, and the surface treated film roll with the adhesive layer is taken out as the elongated optical sheet 3, and the release film provided on the surface of the adhesive layer of the surface treated film roll is passed through. After the peeling, the adhesive film layer side of the surface-treated film roll was placed on the polarizing film side of the polarizing plate roll, and the film was pressed under the tension and held at -46 - 200937365. Next, the release film provided on the surface of the polarizer side adhesive layer is peeled off, and the adhesive layer side is disposed under the liquid crystal display element side to be bonded to one surface of the liquid crystal display element. On the one hand, the aforementioned polarizing plate roll is taken out as the elongated optical sheet 11, and the protective film roll with the adhesive layer is taken out as the elongated optical sheet 13, and the release film provided on the surface of the adhesive layer of the protective film roll is provided. After the film was peeled off, the film was placed on the side of the polarizing film of the polarizing plate roller to protect the side of the adhesive film layer of the film roll, and the film was pressed and adhered under tension. After the release film provided on the surface of the polarizer side adhesive layer is peeled off, the adhesive layer is disposed under the liquid crystal display element side and bonded to the other surface of the liquid crystal display element. Further, for example, a film of the remaining area to which the liquid crystal display element is bonded is cut off by using a cut-cut type cutter or a Dicing type cutter (cutting means). Thereby, on one side of the liquid crystal display element, the layer of the adhesive layer, the biaxially stretched film of the norbornene resin, the polarizing film, and the surface treated film are sequentially layered on the other side of the liquid crystal display member to adhere thereto. The liquid crystal panel is obtained by laminating the agent layer, the biaxially stretched film of the norbornene resin, the polarizing film, the adhesive layer, and the polyethylene terephthalate protective film. <Example 2> An example of a liquid crystal panel was produced by the second manufacturing method of the present invention in accordance with the method shown in Figs. 5 and 6 . (Polarizing Plate Roller) -47- 200937365 The same polarizing plate roll as exemplified in (Polarizing Plate Roller) of Example 1 was used. (surface-treated film roll) A surface-treated film having a thickness of 83 μm which is provided with an anti-glare treatment layer on the surface of triethyl fluorene-based cellulose (matting hard-coated TAC film DS_LR2' manufactured by Dainippon Printing Co., Ltd. In the state of the roll, the length of the width corresponding to the width of the panel is directly used as the surface treatment film roll. This is the surface treated film roll exemplified by the (surface-treated film roll) of Example 1 corresponding to the absence of adhesion. Agent layer. (Polyethylene terephthalate protective film roll) A one-axis stretch polyethylene terephthalate film (thickness: 45 μπι) is taken up into a roll shape, and slit to a width corresponding to the width of the panel, directly As a surface treatment film roll. This is the protective film roll exemplified in the (polyethylene terephthalate protective film roll) of Example 1, which corresponds to the case where the adhesive layer is not formed. (Liquid Crystal Panel) In Fig. 5, the polarizing plate roll is taken out as the elongated optical sheet 1, the surface treated film roll is taken out as the elongated optical sheet 3, and the surface treated film roll is placed on the polarizing film side of the polarizing plate roll. In the state of the fluorene-based cellulose side, an ultraviolet-curable resin adhesive containing an epoxy resin and a cationic polymerization-type initiator is interposed between the two, and the nip roller is attached under tension to hold -48-200937365. After bonding, the side of the polarizing plate is irradiated with ultraviolet rays to harden the adhesive layer. On the one hand, the polarizing plate roll is taken out as the elongated optical sheet 11, and the protective film roll is taken out as the elongated optical sheet 13, and the protective film roll is placed on the polarizing film side of the polarizing plate roll. The ultraviolet curable resin adhesive of the epoxy resin and the cationic polymerization type initiator is adhered by a nip roll while maintaining tension. After the bonding, the adhesive layer is cured by ultraviolet irradiation on the side of the protective film. Thereafter, the laminate of the polarizing plate and the surface of the film and the laminate of the polarizing plate and the protective film were each cut to the size of the corresponding liquid crystal display element by a cutting means as in the first embodiment. After the optical sheet laminate 51' obtained by transporting the laminate of the cut-off polarizing plate and the surface-treated film is peeled off from the adhesive layer side of the polarizing plate as shown in FIG. 6, the adhesive layer is disposed on the liquid crystal display element. The optical sheet laminate 52 obtained by laminating the laminate of the polarizing plate and the protective film while being attached to one side of the liquid crystal display element is shown in FIG. 6 as the 'adhesive layer side of the polarizing plate. After the release film is peeled off, the adhesive layer is disposed on the liquid crystal display element side and is attached to the other surface of the liquid crystal display element. Thereby, on the one side of the liquid crystal display element, the adhesive layer, the one-axis stretch film of the slab resin, the polarizing film, and the surface treatment film are laminated in the order of the other side of the liquid crystal display element. The liquid crystal panel is obtained by laminating the adhesive layer, the shaft-extending film, the polarizing film, and the polyethylene terephthalate protective film. -49- 200937365 <Example 3> An example of a liquid crystal panel was produced by the first manufacturing method of the present invention in accordance with the method of Fig. 3 . (Polarized Film Roller) ^ A polyethylene release film was bonded to both surfaces of the polarizing film obtained by the method of (polarizing film) of Example 1 and slit to a width corresponding to the width of the liquid crystal display element as a polarizing film roll. ❹ (surface-treated film roll) The film roll was treated in the same manner as exemplified in (surface-treated film roll) of Example 2. (Thinene-reducing resin film roll) A biaxially stretched film made of a decene-reducing resin is taken up into a roll (ZEONOR film, PTES, thickness: 8 〇μιη), and the slit is cut into a corresponding panel width. Wide, direct as a decene protective film roll. (Polyethylene terephthalate protective film roll) The same as that exemplified in the (polyethylene terephthalate protective film roll) of Example 2, using polyethylene terephthalate protection Film roll. (Liquid crystal panel) In Fig. 3, the peeling film is peeled off by the polarizing film roll, and the long-shaped optical film 21 is taken out as a long optical film 21, and the surface-treated film roll is taken as the elongated optical sheet 3 The protective film roll is taken out as the elongated optical sheet 23, and the adhesive film formed of the acrylic adhesive is taken out as the elongated optical film 25 in a state in which the release film is provided on one side thereof. At this time, the surface-treated film of the triacetyl cellulose side is polarized film, the surface treated film and the polarizing film, and the polarizing film and the protective film are each contained with an epoxy resin and a cationic polymerization initiator. The ultraviolet ray-curable resin adhesive is disposed in the order of a surface treatment film, an adhesive layer, a polarizing film, an adhesive layer, a protective film, an adhesive film, and a release film. In this state, the film was bonded by a nip under the tension. After the bonding, the self-release film side is irradiated with ultraviolet rays to harden the adhesive layer between the surface-treated film and the polarizing film, and between the polarizing film and the protective film. The film is peeled off from the adhesive film, and the adhesive film side is placed under the liquid crystal display element side to be bonded to one surface of the liquid crystal display element. © On the one hand, the peeling film is peeled off from the polarizing film roll, and the peeling film is taken out as the elongated optical film 31, and the polyethylene terephthalate protective film roll is taken out as the elongated optical sheet 13, and the acrylic adhesive is used. The formed adhesive film is taken out as a long optical film 33 in a state in which a release film is provided on one surface thereof. At this time, an ultraviolet curable resin adhesive containing an epoxy resin and a cationic polymerization initiator is interposed between the polarizing film and the polyethylene terephthalate protective film to protect the film, the adhesive layer, and the polarizing film. And arrange the film in the order of the film. In this state, the nip rolls were held under tension. After bonding, the self-protecting film side is irradiated with ultraviolet -51 - 200937365 line to harden the adhesive layer between the polarizing film and the protective film. The release film is peeled off and the release film is peeled off. The adhesive film side is disposed under the liquid crystal display element side, and is bonded to the other surface of the liquid crystal display element. In other words, after bonding the respective optical sheet laminates on both surfaces of the liquid crystal display element, the film of the remaining region to which the liquid crystal display element is bonded is cut by using the cutting means as shown in the first embodiment. Thereby, on one surface of the liquid crystal display element, the adhesive film, the biaxially stretched film of the norbornene resin, the polarizing film, and the surface treated film are laminated in this order, and the other side of the liquid crystal display element is “adhered to the film, The polarizing film and the polyethylene terephthalate protective film are laminated in this order to obtain a liquid crystal panel. <Example 4> An example of a liquid crystal panel was produced by the first production method of the present invention in accordance with the method shown in Fig. 4 . (Polarized Film Roller) The same polarizing film roll as exemplified in (Polarized Film Roller) of Example 3 was used. (Surface-treated film roll) The film roll was treated in the same manner as exemplified by the surface-treated film roll of 2. -52- 200937365 (Triethylene sulfonated cellulose protective film roll) The thickness of the film made of triethyl fluorenyl cellulose is 43 μm. (KC4FR-1, Konicaminolta (strand) should be the width of the panel width, directly as a surface treatment thin (Polyethylene terephthalate protective film roll using the same polyethylene terephthalate (liquid crystal panel) as exemplified in (Polyethylene terephthalate roll) of Example 2 The peeling film is taken out from the polarizing film roll as the elongated optical film 21, the surface elongated optical sheet 3 is taken out, the triethylene fluorene fiber is taken out as the elongated optical sheet 23, and the acrylic adhesive film is pulled on one side. In the state where a release film is provided, 〇25 is taken out. At this time, the surface-treated film is opposed to the triethyl polarizing film, and the surface-treated film and the polarizing film film and the triethylenesulfonated cellulose protective film are each subjected to cationic polymerization. The UV-curable resin-treated film, the adhesive layer, the polarizing film, the adhesive-adhesive film, and the release film are arranged in the order of the initiator, and are laminated by a nip under tension. The release film is used to harden the adhesive layer between the surface treatment film and the polarizing film and between the protective film. Continue, the self-adhesive stretch film is rolled up, and the film roll is slit longitudinally.) Film protective film roll. The film is peeled and the film roll is used as a protective film for the veneer. The adhesive film is formed by the side of the long-length optical film 醯-based cellulose, and the polarizing film contains an epoxy resin and an adhesive to form a surface layer and a protective film. In this state, the film is kept on the side of the liquid crystal display by the ultraviolet ray and the polarizing film and the protective film, and the film is peeled off, and the adhesive film side is disposed on the side of the liquid crystal display element. fit. On the other hand, the peeling film is peeled off from the above-mentioned polarizing film roll, and the peeling film is taken out as the elongated optical film 31, and the polyethylene terephthalate protective film roll is taken out as the elongated optical sheet 13, and the above-mentioned triacetone is taken out. The base cellulose protective film roll is taken up as the elongated optical sheet 41, and the adhesive film formed of the acrylic adhesive is taken out as the elongated optical film 33 in a state where the release film is provided on the sheet surface. At this time, between the polyethylene terephthalate protective film and the polarizing film, and between the polarizing film and the triethylenesulfonated cellulose protective film, ultraviolet rays containing an epoxy resin and a cationic polymerization initiator are interposed. The curable resin adhesive is disposed in the order of a polyethylene terephthalate protective film, an adhesive layer, a polarizing film, an adhesive layer, a triacetyl cellulose protective film, an adhesive film, and a release film. In this state, the nip rolls are held under tension. After bonding, the side of the polyethylene terephthalate protective film is irradiated with ultraviolet rays to protect the polyethylene terephthalate protective film from the polarizing film, and the polarizing film and the triacetyl cellulose. The adhesive layer between the films hardens. The release film is peeled off from the adhesive film, and the adhesive film side is disposed on the liquid crystal display element side and attached to the other side of the liquid crystal display element. Thereafter, using the cutting means shown in Example 1, the film adhered to the remaining area of the liquid crystal display element was cut. Thereby, the film is laminated on one side of the liquid crystal display element with an adhesive film, a triethyl fluorinated cellulose protective film 'polarizing film, and a surface-treated film' on the other side of the liquid crystal display element to adhere the film and triethylene hydride. Base-54-200937365 The cellulose protective film, the polarizing film, and the polyethylene terephthalate protective film are laminated in this order to obtain a liquid crystal panel. <Example 5> An example of a liquid crystal panel having a layer structure different from that of Example 1 was produced by the first production method of the present invention according to the method shown in Fig. 1 . 〇 (Polarizing Plate Roller) On one side of the polarizing film obtained by the method shown in (Polarized Film) of Example 1, a biaxially stretched film of a norbornene resin (ZEONOR film, which is previously subjected to corona treatment) ) OPTES system, thickness: 80μπι ) 'To make the corona treated surface the surface (non-adhesive surface), and the other side of the polarizing film, the thickness of the anti-glare treatment layer will be provided on the surface of the methacrylic resin film. The protective film of 85 μm is intended to bond the antiglare layer to a surface (non-adhesive surface), and each of them is bonded with an ultraviolet curable resin adhesive containing an epoxy resin and a cationic G ion polymerization type initiator. After the bonding, the side of the biaxially stretched film made of the self-reducing terpene resin was cured by ultraviolet rays, and then wound into a roll to form a polarizing plate roll. (Liquid crystal panel) In Fig. 1, the polarizing plate roll is taken out as the elongated optical sheet 3, and the adhesive film formed of the acrylic adhesive is taken out as the elongated optical film 1 in a state where the release film is provided on the sheet surface. At this time, the corona-treated surface of the biaxially stretched film of the norbornene resin in the polarizing plate roll is opposite to the adhesive film, and the release film on the adhesive film is disposed to the outermost side. In this state, the nip rolls are pressed and held under tension. Next, after peeling off the release film on the outer side of the adhesive film, the adhesive film side is placed on the side of the liquid crystal display member to be attached to one side of the liquid crystal display member. On the other side of the liquid crystal display element, as in the first embodiment, the adhesive layer, the biaxially stretched film of the norbornene resin, the polarizing film, the adhesive layer, and the polyethylene terephthalate are protected. The films are sequentially laminated. On one side of the liquid crystal display element, a methacrylic resin film having an adhesive film, a biaxially stretched film of a norbornene resin, a polarizing film, and an antiglare layer is laminated in this order on the other side of the liquid crystal display element. The liquid crystal panel is obtained by laminating in the order of the adhesive layer, the biaxially stretched film of the norbornene resin, the polarizing film, the adhesive layer, and the polyethylene terephthalate protective film. INDUSTRIAL APPLICABILITY The manufacturing method of the present invention is such that the film bonding step, the cutting step, the packing step, and the storage product (transport) of the panel processing and manufacturing company in the optical member manufacturing company are omitted, so that it is bonded to the optical display panel. The optical film can be cleaner and has the effect of reducing defects. Further, the yield of the optical film or the optical sheet of the laminate is increased, and the article utilization efficiency is improved. Further, when the optical display element is a liquid crystal display element, the surface (identification side and backlight side) is a general example of a film configuration, but the portion thereof has, for example, an advantage that the polarizing film can be integrated in the front and back. Specifically, the surface-side treatment such as the anti-glare treatment or the reflection-prevention -35-200937365 treatment is applied to the identification-side polarizing plate of the liquid crystal display element, and the inherent function such as the light diffusion function or the brightness enhancement function is provided on the backlight-side polarizing plate. In response to such a request, the optical film or the optical sheet is laminated as an optical member manufacturing company, and when the panel processing and manufacturing company stores the product, the polarizing film constituting the polarizing plate in the front and back is used as one type. It is also possible to form a liquid crystal display element in the form of a dissimilar optical film or an optical sheet which is necessary for bonding the liquid crystal display element. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a model of a preferred method of the first manufacturing method in the method of manufacturing an optical display panel of the present invention. Fig. 2(a) is a schematic cross-sectional view showing the elongated optical sheet 1 taken out from the take-up roll 2 in the example shown in Fig. 1, and Fig. 2(b) showing the elongated optical sheet taken out from the take-up roll 4. 3 model section cross-section. Fig. 3 is a view showing a model mode diagram of a preferred other example of the first manufacturing method in the present invention. Fig. 4 is a view showing a model mode of another preferred example of the first manufacturing method in the present invention. Fig. 5 is a view showing a model of the first half of a preferred example of the second manufacturing method in the method of manufacturing an optical display panel of the present invention. Fig. 6 is a view showing a model of the second half of a preferred example of the second manufacturing method in the method of manufacturing an optical display panel of the present invention. 7 shows an optical sheet laminate-57-200937365 bonded to one surface of an optical display element, and then the optical display element is vertically inverted, and the conveyance direction is rotated by 90 degrees on the other side of the optical display element. An oblique view of a case in which other optical sheet laminates are attached in a model manner. [Description of main component symbols] 1, 11, 3, 13, 21, 23, 31, 41: elongated optical sheets 2, 4, 12, 14, 22, 24, 26, 32, 34, 42: bow f light 25, 33: elongated optical film 5, 15, 27, 28, 35, 43: first bonding roller 6, 16, 55, 56: second bonding roller 7: optical display element 8: polarizing film 9: protection Film 1 〇: Adhesive layer 17: Surface treated film 18: Adhesive layer 51, 52: Optical sheet laminates 53, 54, 74, 75: Cutting means 5 7, 5 8 : Peeling rolls 59, 60: After peeling Release film 6 1 , 6 2 : recovery roller 71 : first conveyance unit 72 : second conveyance unit 77 : reverse portion - 58 -

Claims (1)

200937365 十、申請專利範圍 1. 一種光學顯示面板的製造方法，其爲於光學顯示元 件貼合具有光學功能之光學薄片層合體而製造光學顯示面 板之方法，其特徵爲含有 由具有光學功能之長形光學薄膜或其層合體之長形光 學薄片經捲取的複數輥中，引出長形光學薄膜或長形光學 薄片之引出步驟、與將經引出之長形光學薄膜或長形光學 Ο 薄片各貼合後形成長形光學薄片層合體之第1貼合步驟、 將長形光學薄片層合體直接貼合於光學顯示元件之第 2貼合步驟、與 由長形光學薄片層合體與光學顯示元件之貼合體，以 光學顯示面板之顯示區域以上，且全光學顯示面板面以下 的區域，截斷長形光學薄片層合體後成爲光學薄片層合體 之截斷步驟。 2. —種光學顯示面板的製造方法，其爲於光學顯示元 © 件貼合具有光學功能之光學薄片層合體而製造光學顯示面 板之方法，其特徵爲含有 . 由具有光學功能之長形光學薄膜或其層合體之長形光 學薄片經捲取的複數輥中，引出長形光學薄膜或長形光學 薄片之引出步驟、 將經引出之長形光學薄膜或長形光學薄片各貼合後而 形成長形光學薄片層合體之第1貼合步驟、 截斷長形光學薄片層合體，作爲光學薄片層合體之截 斷步驟、與 -59- 200937365 將前述光學薄片層合體貼合於光學顯示元件之第2貼 合步驟。 3·如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中供給於引出步驟之長形光學薄膜或長形光 學薄片的1個係含有由聚乙烯醇樹脂薄膜所成之偏光薄 膜。 4. 如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中供給於引出步驟之長形光學薄片的1個係 © 含有由聚乙烯醇樹脂薄膜所成之偏光薄膜、與貼著於該偏 光薄膜之至少一面上之熱塑性樹脂所成的保護薄膜的偏光 板。 5. 如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中供給於引出步驟之長形光學薄片的1個係 具有由聚乙烯醇樹脂薄膜所成之偏光薄膜、形成於該偏光 薄膜之至少一面之黏著劑層、與保護該黏著劑層之離型薄 膜的偏光板，第1貼合步驟或第2貼合步驟中，剝離該離 ❹ 型薄膜，將露出的黏著劑層提供於對其他光學薄膜、或光 學薄片或光學顯示元件之貼合。 6. 如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中提供於引出步驟之長形光學薄片的1個係 具有由聚乙烯醇樹脂薄膜所成之偏光薄膜、由貼著於該偏 光薄膜之一面的熱塑性樹脂所成之保護薄膜、形成於偏光 薄膜之另一面的黏著劑層、與保護該黏著劑層的離型薄膜 之偏光板，第1貼合步驟或第2貼合步驟中，剝離該離型 -60- 200937365 薄膜，將露出之黏著劑層提供於對其他光學薄膜、或光學 薄片或光學顯示元件之貼合。 7.如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中提供於引出步驟之長形光學薄片的1個係 具有由聚乙烯醇樹脂薄膜所成之偏光薄膜、由貼著於該偏 光薄膜之一面的熱塑性樹脂所成之保護薄膜、形成於保護 薄膜之外面的黏著劑層、與保護該黏著劑層之離型薄膜的 © 偏光板，第1貼合步驟或第2貼合步驟中，剝離該離型薄 膜，將露出之黏著劑層提供於對其他光學薄膜或光學薄片 或光學顯示元件之貼合。 8 -如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中供給於引出步驟之長形光學薄膜或長形光 學薄片的1個含有環烯烴樹脂薄膜。 9. 如申請專利範圍第1項或第2項之光學顯示面板的 製造方法，其中提供於引出步驟之長形光學薄膜或長形光 © 學薄片的1個含有纖維素酯樹脂薄膜。 10. 如申請專利範圍第1項或第2項之光學顯示面板 的製造方法，其中提供於引出步驟之長形光學薄膜或長形 光學薄片的丨個含有聚對苯二甲酸乙二醇酯樹脂薄膜。 11. 如申請專利範圍第1項或第2項之光學顯示面板 的製造方法，其中提供於引出步驟之長形光學薄膜或長形 光學薄片的丨個含有（甲基）丙烯酸樹脂薄膜。 12. 如申請專利範圍第丨項或第2項之光學顯示面板 的製造方法，其中提供於引出步驟之長形光學薄膜或長形 -61 - 200937365 光學薄片的1個含有聚丙烯樹脂薄膜。 13. 如申請專利範圍第1項或第2項之光學顯示面板 的製造方法，其中光學顯示元件爲液晶顯示元件，光學顯 示面板爲液晶面板。 14. 如申請專利範圍第1項或第2項之光學顯示面板 的製造方法，其中於第1貼合步驟中之貼合使用紫外線硬 化型樹脂黏著劑。 -62-200937365 X. Patent Application No. 1. A method for manufacturing an optical display panel, which is a method for manufacturing an optical display panel by bonding an optical sheet laminate having an optical function to an optical display element, characterized in that it has a long optical function The elongating optical film or the laminated optical sheet of the laminated optical film, the take-up step of the elongated optical film or the elongated optical sheet, and the elongating optical film or the elongated optical enamel sheet a first bonding step of forming an elongated optical sheet laminate after bonding, a second bonding step of directly bonding an elongated optical sheet laminate to an optical display element, and an elongated optical sheet laminate and an optical display element The bonded body is a cutting step of the optical sheet laminate after the long optical sheet laminate is cut off in a region above the display area of the optical display panel and below the all-optical display panel surface. 2. A method of manufacturing an optical display panel, which is a method for manufacturing an optical display panel by bonding an optical sheet laminate having an optical function to an optical display element, characterized in that it comprises: an optical optical function The elongating optical sheet of the film or its laminated body is taken up in a plurality of rolls, and the elongating optical film or the elongate optical sheet is taken out, and the drawn elongate optical film or elongate optical sheet is attached to each other. The first bonding step of forming the elongated optical sheet laminate, the cutting of the elongated optical sheet laminate, the step of cutting off the optical sheet laminate, and the bonding of the optical sheet laminate to the optical display element with -59-200937365 2 fitting steps. 3. The method of producing an optical display panel according to the first or second aspect of the invention, wherein the one of the elongated optical film or the elongated optical sheet supplied to the extraction step comprises a film made of a polyvinyl alcohol resin. Polarized film. 4. The method of producing an optical display panel according to the first or second aspect of the invention, wherein the one of the elongated optical sheets supplied to the extraction step contains a polarizing film made of a polyvinyl alcohol resin film, and A polarizing plate of a protective film formed by a thermoplastic resin attached to at least one surface of the polarizing film. 5. The method of producing an optical display panel according to claim 1 or 2, wherein the one of the elongated optical sheets supplied to the extraction step has a polarizing film made of a polyvinyl alcohol resin film, and is formed on The adhesive layer of at least one surface of the polarizing film and the polarizing plate for protecting the release film of the adhesive layer, in the first bonding step or the second bonding step, the release film is peeled off, and the exposed adhesive is exposed. The layers are provided for bonding to other optical films, or optical sheets or optical display elements. 6. The method of manufacturing an optical display panel according to claim 1 or 2, wherein the one of the elongated optical sheets provided in the extracting step has a polarizing film made of a polyvinyl alcohol resin film, and is attached a protective film made of a thermoplastic resin on one surface of the polarizing film, an adhesive layer formed on the other surface of the polarizing film, and a polarizing plate which is a release film for protecting the adhesive layer, the first bonding step or the second bonding step In the laminating step, the release-60-200937365 film is peeled off, and the exposed adhesive layer is provided for bonding to other optical films, or optical sheets or optical display elements. 7. The method of producing an optical display panel according to claim 1 or 2, wherein the one of the elongated optical sheets provided in the extracting step has a polarizing film made of a polyvinyl alcohol resin film, and is attached. a protective film made of a thermoplastic resin on one surface of the polarizing film, an adhesive layer formed on the outer surface of the protective film, and a polarizing plate for protecting the adhesive film from the adhesive layer, the first bonding step or the second In the laminating step, the release film is peeled off to provide an exposed adhesive layer to the other optical film or optical sheet or optical display element. The method of producing an optical display panel according to the first or second aspect of the invention, wherein the one of the elongated optical film or the elongated optical sheet supplied to the extraction step contains a cycloolefin resin film. 9. The method of producing an optical display panel according to the first or second aspect of the invention, wherein the elongated optical film or the elongated optical film of the elongating optical sheet is provided. 10. The method of manufacturing an optical display panel according to claim 1 or 2, wherein the elongated optical film or the elongated optical sheet provided in the extracting step contains polyethylene terephthalate resin film. 11. The method of producing an optical display panel according to claim 1 or 2, wherein the elongated optical film or the elongated optical sheet provided in the extracting step contains a (meth)acrylic resin film. 12. The method of manufacturing an optical display panel according to claim 2, wherein the elongated optical film or the elongated -61 - 200937365 optical sheet of the elongating film comprises a polypropylene resin film. 13. The method of manufacturing an optical display panel according to claim 1 or 2, wherein the optical display element is a liquid crystal display element and the optical display panel is a liquid crystal panel. 14. The method of producing an optical display panel according to claim 1 or 2, wherein the ultraviolet curing resin adhesive is used in combination in the first bonding step. -62-
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