13.45084 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種偏光板及其製造方法，且特別g有 關於一種可防止溼氣產生形變的偏光板及其製造能方法^ 【先前技術】 偏光板（Polarizer)為液晶顯示器之基礎零件之―，是一 只，許某偏振方向的光線才能透過的光板，主要用途係在^ 使符合該偏光板之偏振方向之光線通過，使液晶顯示器呈現 明暗的狀態’藉以顯示字幕或圖案。 一般製作偏光板係由聚乙烯醇（Polyvinyl Ale()hQl ; pvA) 薄膜形成，然而聚乙烯醇薄膜具有吸濕的特性，容易因為環 境溼氣使偏光板扭曲造成尺寸安定性不良的問題。又由於傳 統的偏光板製做過程，必須對上述聚乙烯醇薄膜進行熱延伸 與熱定型步驟，聚乙烯醇薄膜的延伸性因此變得較不易掌控。 爲了解決此一問題，習知技術乃採用較大面積的三醋酸 纖維素薄膜（Triacetyl Cellulose film; TAC)，將聚乙稀醇薄膜 的上下兩側加以包覆’藉以控制聚乙烯醇薄膜的收縮，同時 也可以藉此降低濕氣直接由聚乙烯醇薄膜的表面進入，造成 偏光板扭曲變形。 然而在傳統的偏光板中，三醋酸纖維素薄膜並未覆蓋聚 乙烯醇薄膜的邊緣，使聚乙烯醇薄膜的邊緣常因受潮而由薄 膜的邊緣往内部收縮’導致偏光板周邊發生扭曲變形或於顯 示上發現有顏色不均勻等不良現象。 5 1345084 因此有需要提供—種具有可防止潮濕形變的的偏光板 及其製造能方法。 ·* 【發明内容】 ， "本發明的目的就是在提供—種形變的偏光板，此 偏光板包括：第-三醋酸纖維素薄膜、第二三醋酸纖維素薄 膜、聚乙烯醇薄模以及防水層。第—三醋酸纖維素薄膜具有 • i表面及鄰接於上表面的第-側壁。第二三醋酸纖維素薄 膜’具有下表面及鄰接於下表面的第二側壁。聚乙烯醇薄膜 位於上表面與下表面之間^防水層係連續地連接第—側壁與 第—側壁纟且與第—二醋酸纖維素薄膜和第二三醋酸纖維 素薄膜形成-密閉腔室’藉以容置聚乙烯醇薄膜。 本心明的另-目的就S在提供—種液晶顯示器，此液晶 顯示器包括：背光模組、安裝於背光模組上的液晶顯示面 板，以及安裝於液晶顯示面板上的偏光板，此偏光板包括： .第-三醋酸纖維素薄膜、第二三醋酸纖維素薄膜、聚乙烯醇 薄膜以及防水層。第—三醋酸纖維素薄膜具有上表面及鄰接 上表面的第-側壁，其中第—側壁係用以定義第一三醋酸纖 維素薄膜的形狀與尺寸。第二三醋酸纖維素薄膜，具有下表 面及鄰接下表面的第二側壁，其中第二側壁係用以定義第二 三醋酸纖維素薄膜的形狀與尺寸。聚乙稀醇薄膜位於上表面 與下表面之間。防水層係連續地連接第-側壁與第二側壁， 並且與第-三醋酸纖維素薄膜和第二三醋酸纖維素薄膜形 成一密閉腔室，藉以容置聚乙烯醇薄膜。 6 本發明的又一目的钛θ产 板的製〇. ，在棱供一種防潮溼形變之偏光 的“方法，此一方法包括下述步驟· 薄膜首Γ提Γ—三錯酸纖維素薄膜與第二三醋酸纖維素 粵膜第—二醋酸纖維素薄膜且右L ± 面的第-側辟，甘“ 上表面，以及鄰接上表 薄膜的形狀與尺i第—三醋酸纖維素 以及鄰接下表素薄膜具有—下表面， 印设Γ衣面的第二側劈，1 — 三醋酸纖維素薄膜的形狀與尺寸。二㈣制以定義第二 與下;=—使聚乙稀醇薄膜位於上表面 壁，mr水層，以連續的方式連接第-側壁與第二側 开q /、—醋酸纖維素薄膜和第二三醋酸纖維素薄膜 形成-密閉腔室’藉以容置聚乙烯醇薄膜。 廣膜 防水之較佳實施例，本發明之技術特徵係採用 氧樹脂塗佈於由兩個三醋酸卿素薄膜所 覆之4乙烯醇薄膜的周邊部份，藉由防7jc#斑坌^ 纖維素薄膜和第二⑼二防水層與第一二醋酸 ^谷置聚乙烯醇薄媒’料習知技術中偏光板 2 醇薄膜由邊緣往==的 ’造成聚乙歸 4 N °卩收細扭並曲變形的問題。 【實施方式】 為讓本發8月> P5 n 懂，本說明書二:、特徵、優點與實施例能更明顯易 將特舉出一種裝設有防潮澄形變偏光板100的 13.45084 液晶顯示器ίο作為較佳實施例加以說明。但值得注意的是， 此實施例係用以說明而非用以限定本發明。 請參照第1圖，第丨圖係根據本發明的—較佳實施例所 繪示之裝設有防潮溼形變偏光板100的液晶顯示器結構示意 圖。其中液晶顯示器10包括：背光模組1〇2、安裝於背光模 組102上的液晶顯示面板1〇4，以及安裝於液晶顯示面板 上的偏光板100。 请參照第2Α圖和第2Β圖，第2Α圖係繪示第1圖之防 潮溼形變偏光板100的結構示意圖。第2Β圖係繪示第i圖 之防潮溼形變偏光板10〇的結構剖面圖。 偏光板100包括：第一三醋酸纖維素薄膜1〇1、第二三 醋酸纖維素薄臈1〇3、聚乙稀醇薄膜1〇5以及防水層ι〇7。 第一三醋酸纖維素薄膜1〇1具有上表1〇la面及鄰接上表面 l〇la可用來定義第一三醋酸纖維素薄膜1〇1之尺寸與形狀的 第一側壁ill。第二三醋酸纖維素薄膜1〇3,具有下表面1〇3a 及鄰接下表面l〇3a可用來定義第二三醋酸纖維素薄膜1〇3 之尺寸與形狀的第二側壁113。聚乙烯醇薄膜1〇5位於上表 面l〇la與下表面丨03a之間，且具有對應上表面1〇u的入光 面l〇5a、對應下表面1〇3a的出光面i〇5b、和鄰接入光面l〇5a 與出光面105b的第三側壁115，其中第三側壁115可用來定 義聚乙烯醇薄膜1〇5的尺寸。 值知注意的是，液晶顯示器1 〇包括位於液晶顯示面板 104上方的偏光板1〇〇以及位於液晶顯示面板1〇4下方的偏 光板100’。其中偏光板1〇〇和偏光板1〇〇，置放的方位恰恰相 8 1345084 反。例如在第2A圖中’偏光板ι00係位於顯示面板1〇4上 =，因此將聚乙烯醇薄膜105對應上表面1〇la的表面1〇5a 定義為入光面，而對應下表面103a的表面1〇5b定義為出光 面。反之偏光板100,（未繪示詳細結構）係位於顯示面板1〇4 下方，因此當偏光板，因此將聚乙烯醇薄膜105對應上表面 l〇la的表面105a定義為出光面，而對應下表面i〇3a的表面 105b定義為入光面。 在本發明實施例之中，第一三醋酸纖維素薄膜101、第 二三醋酸纖維素薄膜103、聚乙烯醇薄膜1〇5的形狀及尺寸 並不固定，端視第一侧壁ill、第二側壁113及第三側壁115 的形式與尺寸大小來加以決定。例如，在本發明的較佳實施 例之中，第一側壁111包括有四個相互垂直的子側壁1Ua、 lllb、me和llld;第二側壁113包括有四個相互垂直的子 侧壁113a、ll3b、113c以及113d;第三側壁115係由相互 垂直的四個子側壁115a、115b' 115c以及115d所構成，故 第一三醋酸纖維素薄膜101、第二三醋酸纖維素薄膜丨以 及聚乙烯醇薄膜105皆為方形薄膜。又例如，在本發明的另 一實施例之t，第一側壁111'第二側壁113及第三側壁115 分別為一個環狀側壁。因此，第一三醋酸纖維素薄膜丨〇 J、 第二三醋酸纖維素薄膜103以及聚乙烯醇薄膜1〇5係圓形薄 膜。然而值得注意的是，上述實施例並非限制本發明之第一 側壁111、第二側壁113及第三側壁115分的樣式與尺寸， 在本發明的其他實施例之中，還包含其他可能的樣式與尺 寸0 9 13.45084 防水層107係以連續的方式連接第-侧壁111與第二側 壁113 W如’在上述實施例之中’防水層1G7係、以連續的 方式’分別將第一㈣⑴的四個子㈣ma、lllb、lllc 以及llld與第—侧壁113的四個子側壁ii3a、、⑴c 以及113d連結’藉以使防切1()7與第—三醋酸纖維素薄膜 ιοί和第二三醋酸纖維素薄膜ι〇3形成一密閉腔室12〇容置 聚乙烯醇薄膜1G5 1水層1G7的材f較佳為環氧樹脂。 通系，第一二醋酸纖維素薄膜1〇1和第二三醋酸纖維素 薄膜103尺寸相同，並且以上下堆疊的方式包覆聚乙烯醇薄 膜105。在本發明的較佳實施例之中，聚乙烯醇薄膜1〇5具 有與包覆聚乙烯醇薄膜1〇5本身之第一三醋酸纖維素薄膜 101和第二三醋酸纖維素薄膜1〇3相同的尺寸（如第2B圖所 繪示）。故，當第一三醋酸纖維素薄膜1〇1和第二三醋酸纖維 素薄膜103以上下堆疊的方式包覆聚乙烯醇薄膜ι〇5時，第 一側壁111、第二側壁113以及第三侧壁115會構成一個平 面1Π。防水層107則連續地覆蓋於平面in上。藉由第一 二醋酸纖維素薄膜101、第二三醋酸纖維素薄膜1〇3以及防 水層107’將聚乙烯醇薄膜105完整包覆於密閉腔室12〇中， 以防止外界濕氣進入聚乙烯醇薄膜1〇5中，導致聚乙烯醇薄 膜吸濕形變。 另外，在本發明的較佳實施例之中，偏光板100更包括： 保護膜121'黏著層123以及離形膜（Release Film)l 25。其中， 保護膜121位於第二三醋酸纖維素薄膜103之上，相對於下 表面103a之一側，用來保護偏光板100在運送或組裝時免於 10 13.45084 括傷。 黏著層123位於第一三醋酸纖維素薄膜1 〇丨之上，相對13.45084 IX. Description of the Invention: [Technical Field] The present invention relates to a polarizing plate and a method of manufacturing the same, and particularly to a polarizing plate capable of preventing deformation of moisture and a manufacturing method thereof. 】 Polarizer is the basic part of liquid crystal display. It is a light board that can transmit light in the direction of polarization. The main purpose is to pass light that conforms to the polarization direction of the polarizer, so that the liquid crystal display Rendering a light and dark state' by which to display subtitles or patterns. Generally, a polarizing plate is formed of a polyvinyl alcohol (Polyvinyl Ale () hQ1; pvA) film. However, the polyvinyl alcohol film has a hygroscopic property, and it is easy to cause distortion of the polarizing plate due to environmental moisture, resulting in poor dimensional stability. Further, due to the conventional polarizing plate manufacturing process, the above-mentioned polyvinyl alcohol film must be subjected to a heat stretching and heat setting step, and the elongation of the polyvinyl alcohol film is thus less likely to be controlled. In order to solve this problem, the conventional technique uses a large area of Triacetyl Cellulose film (TAC) to coat the upper and lower sides of the polyethylene film to control the shrinkage of the polyvinyl alcohol film. At the same time, it is also possible to reduce the moisture directly entering from the surface of the polyvinyl alcohol film, causing distortion of the polarizing plate. However, in the conventional polarizing plate, the cellulose triacetate film does not cover the edge of the polyvinyl alcohol film, so that the edge of the polyvinyl alcohol film is often shrunk from the edge of the film due to moisture, resulting in distortion of the periphery of the polarizing plate or Uneven phenomena such as uneven color were found on the display. 5 1345084 Therefore, there is a need to provide a polarizing plate that can prevent moisture deformation and a method of manufacturing the same. · * [Description of the Invention], " The object of the present invention is to provide a polarizing plate comprising: a glycerol triacetate film, a second cellulose triacetate film, a polyvinyl alcohol thin film, and Waterproof layer. The first-triacetate film has a surface i and a first side wall adjacent to the upper surface. The second triacetate film [having a lower surface and a second side wall adjacent to the lower surface. The polyvinyl alcohol film is located between the upper surface and the lower surface. The waterproof layer continuously connects the first side wall and the first side wall 纟 and forms a condensed chamber with the first cellulose diacetate film and the second cellulose triacetate film. Thereby accommodating a polyvinyl alcohol film. The other purpose of the present invention is to provide a liquid crystal display comprising: a backlight module, a liquid crystal display panel mounted on the backlight module, and a polarizing plate mounted on the liquid crystal display panel, the polarizing plate The method comprises: a 1,3-triacetate film, a second triacetate film, a polyvinyl alcohol film, and a waterproof layer. The first-triacetate film has an upper surface and a first side wall adjacent to the upper surface, wherein the first side wall defines the shape and size of the first triacetate film. The second triacetate film has a lower side surface and a second side wall adjacent to the lower surface, wherein the second side wall defines the shape and size of the second cellulose triacetate film. The polyethylene film is located between the upper surface and the lower surface. The water repellent layer continuously connects the first side wall and the second side wall, and forms a closed chamber with the ternary cellulose acetate film and the second cellulose triacetate film to accommodate the polyvinyl alcohol film. 6 Further object of the present invention is a method for producing a titanium θ plate, which is provided with a method for preventing polarization of moisture deformation, and the method comprises the following steps: film Γ Γ Γ 三 三 三 三 三 三 三The second triacetate cellulose film of the first cellulose diacetate film and the right side of the L-1 surface, the "upper surface, and the shape of the film adjacent to the upper surface and the size of the cellulose acetate and adjacent The pixel film has a lower surface, a second side enamel of the enamel surface, and a shape and size of the 1-3 cellulose acetate film. Two (four) system to define the second and the lower; = - to make the polyethylene film located on the upper surface wall, mr water layer, in a continuous manner to connect the first side wall and the second side open q /, - cellulose acetate film and The ditriacetate film forms a closed chamber to accommodate the polyvinyl alcohol film. In a preferred embodiment of the wide film waterproofing, the technical feature of the present invention is to coat the peripheral portion of the 4 vinyl alcohol film coated with two triacetin films by using an oxygen resin, by preventing the 7jc# spotting fiber. The film and the second (9) two waterproof layer and the first diacetate and the polyvinyl alcohol thin medium 'materials in the prior art polarizing plate 2 alcohol film from the edge to == 'cause the polyethylene to 4 N ° 卩 fine The problem of twisting and twisting. [Embodiment] In order to make the present invention understand, the present specification 2, features, advantages and embodiments can more clearly cite a 13.45084 liquid crystal display equipped with a moisture-proof polarizing plate 100. This will be described as a preferred embodiment. It is to be noted, however, that this embodiment is intended to be illustrative and not to limit the invention. 1 is a schematic view showing the structure of a liquid crystal display device equipped with a moisture-proof deformation polarizing plate 100 according to a preferred embodiment of the present invention. The liquid crystal display 10 includes a backlight module 1〇2, a liquid crystal display panel 1〇4 mounted on the backlight module 102, and a polarizing plate 100 mounted on the liquid crystal display panel. Please refer to FIG. 2 and FIG. 2, and FIG. 2 is a schematic view showing the structure of the moisture-proof polarizing plate 100 of FIG. Fig. 2 is a cross-sectional view showing the structure of the moisture-proof deformation polarizing plate 10A of Fig. i. The polarizing plate 100 includes a first triacetate film 1〇1, a second triacetate cellulose thin layer 1〇3, a polyethylene film 1〇5, and a water repellent layer 〇7. The first triacetylcellulose film 1〇1 has a top surface 1 〇la face and an adjacent upper surface l〇la can be used to define the first side wall ill of the size and shape of the first triacetate film 1〇1. The second triacetate film 1〇3, having the lower surface 1〇3a and the adjacent lower surface 10a3a, can be used to define the second side wall 113 of the size and shape of the second triacetate film 1〇3. The polyvinyl alcohol film 1〇5 is located between the upper surface 10a and the lower surface 丨03a, and has a light-incident surface l〇5a corresponding to the upper surface 1〇u, a light-emitting surface i〇5b corresponding to the lower surface 1〇3a, And a third sidewall 115 adjacent to the light surface l〇5a and the light exit surface 105b, wherein the third sidewall 115 can be used to define the size of the polyvinyl alcohol film 1〇5. It is to be noted that the liquid crystal display 1 includes a polarizing plate 1A above the liquid crystal display panel 104 and a polarizing plate 100' located below the liquid crystal display panel 1B4. Among them, the polarizing plate 1〇〇 and the polarizing plate 1〇〇 are placed in the same direction as 8 1345084. For example, in the second drawing, 'the polarizing plate ι00 is located on the display panel 1〇4, so the surface 1〇5a of the polyvinyl alcohol film 105 corresponding to the upper surface 1〇1a is defined as the light incident surface, and the lower surface 103a is corresponding. The surface 1〇5b is defined as a light-emitting surface. On the contrary, the polarizing plate 100 (not shown in detail) is located below the display panel 1〇4, so when the polarizing plate is used, the surface 105a corresponding to the upper surface 10a of the polyvinyl alcohol film 105 is defined as a light emitting surface, and the corresponding The surface 105b of the surface i〇3a is defined as a light incident surface. In the embodiment of the present invention, the shape and size of the first triacetate film 101, the second cellulose triacetate film 103, and the polyvinyl alcohol film 1〇5 are not fixed, and the first side wall ill, the first side is viewed. The form and size of the two side walls 113 and the third side wall 115 are determined. For example, in a preferred embodiment of the present invention, the first sidewall 111 includes four mutually perpendicular sub-side walls 1Ua, 11b, me and llld; the second sidewall 113 includes four mutually perpendicular sub-side walls 113a, L13b, 113c, and 113d; the third side wall 115 is composed of four sub-side walls 115a, 115b' 115c and 115d which are perpendicular to each other, so the first triacetate film 101, the second cellulose triacetate film, and polyvinyl alcohol The films 105 are all square films. For another example, in another embodiment of the present invention, the second side wall 113 and the third side wall 115 of the first side wall 111' are respectively an annular side wall. Therefore, the first triacetate film 丨〇 J, the second triacetate film 103, and the polyvinyl alcohol film 1〇5 are circular films. It should be noted, however, that the above embodiments do not limit the style and size of the first side wall 111, the second side wall 113, and the third side wall 115 of the present invention. In other embodiments of the present invention, other possible styles are also included. And the size 0 9 13.45084 waterproof layer 107 is connected in a continuous manner to the first side wall 111 and the second side wall 113 W as in the above embodiment 'the waterproof layer 1G7 system, in a continuous manner' respectively the first (four) (1) Four sub-fours (ma) ll, lllb, lllc, and llld are joined to the four sub-side walls ii3a, (1)c, and 113d of the first side wall 113 to thereby prevent the anti-cut 1 () 7 and the third cellulose acetate film ιοί and the second triacetate fiber The film ι〇3 forms a closed chamber 12, and the polyvinyl alcohol film 1G5 1 water layer 1G7 is preferably an epoxy resin. The first cellulose diacetate film 1〇1 and the second cellulose triacetate film 103 are the same in size, and the polyvinyl alcohol film 105 is coated in a manner of being stacked above. In a preferred embodiment of the present invention, the polyvinyl alcohol film 1〇5 has a first triacetate film 101 and a second cellulose triacetate film 1〇3 coated with a polyvinyl alcohol film 1〇5 itself. The same size (as shown in Figure 2B). Therefore, when the first triacetate film 1〇1 and the second triacetate film 103 are stacked on top of each other to coat the polyvinyl alcohol film ι 5, the first side wall 111, the second side wall 113, and the third The side wall 115 will constitute a plane 1 Π. The waterproof layer 107 is continuously covered on the plane in. The polyvinyl alcohol film 105 is completely coated in the sealed chamber 12〇 by the first cellulose diacetate film 101, the second cellulose triacetate film 1〇3, and the water-repellent layer 107' to prevent external moisture from entering the polymer. In the vinyl alcohol film 1〇5, the polyvinyl alcohol film was caused to absorb moisture. In addition, in the preferred embodiment of the present invention, the polarizing plate 100 further includes: a protective film 121' adhesive layer 123 and a release film 125. The protective film 121 is located on the second cellulose triacetate film 103, and is disposed on one side of the lower surface 103a for protecting the polarizing plate 100 from being scratched by 10 13.45084 during transportation or assembly. The adhesive layer 123 is located on the first triacetate film 1 ,, relative
123係塗佈於第一三醋酸 ^膜125黏貼於黏著層123上，相對於第二 膜103之一側。 纖維素薄膜ιοί上的一種透明黏膠，用來將黏著層123固定 於液晶顯示器1〇(如第1圖所繪示）之中。而黏著層123的離 三醋酸纖維素薄 但在本發明的其他實施例之中，聚乙烯醇薄膜的尺寸小 於第一三醋酸纖維素薄膜和第二三醋酸纖維素薄膜的尺 寸。例如請參照第3圖，第3圖係根據本發明之第二較佳實 施例所繪示之防潮溼形變偏光板3〇〇的結構剖面圖。 、 偏光板300包括：第一三醋酸纖維素薄膜3〇1、第二三 醋酸纖維素薄膜303 '聚乙烯醇薄膜3()5以及防水層3〇7了 第-三醋酸纖維素薄膜3()1具有上表3〇la面及鄰接上表面 3〇la可用來定義第—三醋酸纖維素薄膜3〇1之尺寸與形狀的 第一側壁311。第二三酷醯綸雒冬结时，Λ Λ β —The 123 series is applied to the first triacetate film 125 and adhered to the adhesive layer 123 with respect to one side of the second film 103. A transparent adhesive on the cellulose film ιοί for fixing the adhesive layer 123 to the liquid crystal display 1 (as shown in Fig. 1). While the adhesive layer 123 is thinner than cellulose triacetate, in other embodiments of the present invention, the size of the polyvinyl alcohol film is smaller than that of the first cellulose triacetate film and the second cellulose triacetate film. For example, please refer to FIG. 3, which is a cross-sectional view showing the structure of the moisture-proof deformation polarizing plate 3A according to the second preferred embodiment of the present invention. The polarizing plate 300 includes: a first triacetate film 3〇1, a second triacetate film 303′′ polyvinyl alcohol film 3 () 5, and a water repellent layer 3〇7-triacetate film 3 ( 1 has a first side wall 311 which can be used to define the size and shape of the cellulose triacetate film 3〇1, having the upper surface 3〇la surface and the adjacent upper surface 3〇1a. The second and third cool 醯 雒 雒 雒 雒, Λ Λ β —
可用來定義聚乙烯醇薄膜3〇5的尺寸。It can be used to define the size of the polyvinyl alcohol film 3〇5.
11 1345084 別與子側壁311 a和311 b垂直的子側壁311 c和311 d(圖未繪 示）’以定義出第一三醋酸纖維素薄膜301的尺寸；第二側壁 313包括有四個相互垂直的子側壁’例如包括子側壁31 $ a和 313b以及以及分別與子側壁313a和313b的子側壁313c和 313d(圖未繪示）’以定義出第二三醋酸纖維素薄膜3〇3的尺 寸；第三側壁315係由相互垂直的四個子側壁所構成，例如 第二側壁315包括子側壁315a和315b以及分別與子側壁 315a和315b垂直的子側壁315c和315d(圖未繪示），以定義 出聚乙烯醇薄膜305。故第一三醋酸纖維素薄膜3〇 1、第二 三醋酸纖維素薄膜303以及聚乙烯醇薄膜305皆為方形薄 膜。 其中’第3圖與第2B圖所繪示的結構大致相同，最大 的不同僅在於聚乙烯醇薄膜的尺寸與第一三醋酸纖維素薄 膜和第一二醋酸纖維素薄膜的相對尺寸。當第一三醋酸纖維 素薄膜301和第二三醋酸纖維素薄膜3〇3以上下堆疊的方式 包覆聚乙烯醇薄膜305時，由於聚乙烯醇薄膜3〇5的尺寸較 小，因此第三側壁315會往内縮排，並且與該上表面3〇1& 和該下表303a面共同定義出一個凹室319。防水層3〇7則連 續地覆蓋於第一側壁311、第二側壁3 13以及凹室319上， 防水層307的環氧樹脂較佳係實質填充於凹室319之中。获 由第一三醋酸纖維素薄膜301、第二三醋酸纖維素薄膜3〇3 以及防水層307，將聚乙烯醇薄膜3〇5完整包覆於密閉腔室 320之中，以防止外界濕氣進入聚乙烯醇薄膜3〇5中，導致 聚乙烯醇薄獏305吸濕形變。例如，防水層3〇7以連續的方 12 1345084 式，分別將第一側壁311的四個子側壁311a、3Ub ' 3Ue以 及311d與第二側壁313的四個子側壁313a、313b、313c以 及313d連結，藉以使防水層307與第一三醋酸纖維素薄膜 301和第二三醋酸纖維素薄膜303形成一密閉腔室32〇容置 聚乙烯醇薄膜305。防水層307的材質較佳為環氧樹脂。 另外偏光板300更包括：保護膜321、黏著層323以及 離形膜325。其中，保護膜321位於第二三醋酸纖維素薄膜 3〇3之上，相對於下表面303a之一側，用來保護偏光板3〇〇 在運送或組裝時免於括傷。 黏著層323位於第一三醋酸纖維素薄膜3〇1之上，相對 於上表面301a之一側。其中黏著層323係塗佈於第一三醋酸 纖維素薄膜301上的一種透明黏膠，用來將黏著層323固定 於液晶顯示器1〇(如第1圖所繪示）之中。而黏著層323的離 形膜325黏貼於黏著層323上，相對於第二三醋酸纖維素薄 膜3 0 3之'—側。 請參照第4圖，第4圖係根據本發明的較佳實施例所繪 示的一種製造防潮溼形變之偏光板的流程圖。製造上述防潮 澄形變之偏光板100包括下述步驟： 首先請參照步驟S41，提供第一三醋酸纖維素薄膜1〇1 與第一二醋酸纖維素薄膜1〇3。第一三醋酸纖維素薄膜ι〇ι 具有一上表面101a，以及鄰接上表面1〇la的第一側壁m ; 第二三醋酸纖維素薄膜103具有—下表面1〇3&，以及鄰接下 表面103a的第二侧壁in。 接著請參照步驟S42，提供聚乙烯醇薄膜1〇5，使聚乙 13 1345084 烯醇薄膜105位於上表i〇la面與下表面I〇3a之間。 然後參照步驟S43提供防水層1〇7，藉由防士 β 稽田防水層107將 第一側壁111與第二側壁113以連續的方式連接在—起，藉 以使防水層107與第一三醋酸纖維素薄膜1〇 _错 τ禾一二醋酸 纖維素薄冑103形成一密閉腔t 120容置聚乙烯醇薄膜 1〇5。其中，提供防水層170的步驟S43包括一塗佈製程“Μ 將環氧樹脂藉由喷塗和塗抹的方式塗佈於第一側壁Η〗與第 二側壁113之間，由第一側壁ιη、第二側壁113和第三側 壁U5所形成的平面117上（如第2B圖所繪示）。或者（如第3 圖所繪示）將該環氧樹脂填充於由第三側壁315'第一三醋酸 纖維素薄膜則的上表面遍以及第二三醋酸纖維素^膜 303的下表面303b所共同定義的凹室319中。11 1345084 is not perpendicular to the sub-side walls 311 a and 311 b of the sub-side walls 311 c and 311 d (not shown) to define the size of the first triacetylcellulose film 301; the second side wall 313 includes four mutual The vertical sub-side walls 'including, for example, the sub-side walls 31 $ a and 313 b and the sub-side walls 313 c and 313 d (not shown) of the sub-side walls 313 a and 313 b respectively to define the second triacetylcellulose film 3 〇 3 The third side wall 315 is composed of four sub-side walls that are perpendicular to each other. For example, the second side wall 315 includes sub-side walls 315a and 315b and sub-side walls 315c and 315d (not shown) perpendicular to the sub-side walls 315a and 315b, respectively. To define a polyvinyl alcohol film 305. Therefore, the first triacetate film 3〇1, the second triacetate film 303, and the polyvinyl alcohol film 305 are all square films. The structure shown in Fig. 3 and Fig. 2B is substantially the same, the biggest difference being only the size of the polyvinyl alcohol film and the relative size of the first triacetate film and the first cellulose diacetate film. When the first triacetate film 301 and the second triacetate film 3〇3 are stacked in a manner of coating the polyvinyl alcohol film 305, since the size of the polyvinyl alcohol film 3〇5 is small, the third The side walls 315 are inwardly retracted and define an alcove 319 together with the upper surface 3〇1& and the lower surface 303a. The waterproof layer 3〇7 is continuously covered on the first side wall 311, the second side wall 3 13 and the recess 319, and the epoxy resin of the waterproof layer 307 is preferably substantially filled in the recess 319. The first triacetate film 301, the second triacetate film 3〇3, and the waterproof layer 307 are obtained, and the polyvinyl alcohol film 3〇5 is completely covered in the sealed chamber 320 to prevent external moisture. Entry into the polyvinyl alcohol film 3〇5 resulted in hygroscopic deformation of the polyvinyl alcohol thin 305. For example, the waterproof layer 3〇7 is connected to the four sub-side walls 311a, 3Ub′ 3Ue and 311d of the first side wall 311 and the four sub-side walls 313a, 313b, 313c and 313d of the second side wall 313 by a continuous square 12 1345084. The water-repellent layer 307 and the first cellulose triacetate film 301 and the second cellulose triacetate film 303 form a sealed chamber 32 to accommodate the polyvinyl alcohol film 305. The material of the waterproof layer 307 is preferably an epoxy resin. Further, the polarizing plate 300 further includes a protective film 321, an adhesive layer 323, and a release film 325. The protective film 321 is located on the second triacetylcellulose film 3〇3, and is used to protect the polarizing plate 3〇〇 from being scratched during transportation or assembly with respect to one side of the lower surface 303a. The adhesive layer 323 is located on the first triacetylcellulose film 3〇1, on one side of the upper surface 301a. The adhesive layer 323 is a transparent adhesive coated on the first cellulose triacetate film 301 for fixing the adhesive layer 323 to the liquid crystal display 1 (as shown in Fig. 1). The release film 325 of the adhesive layer 323 is adhered to the adhesive layer 323 with respect to the '-side of the second cellulose triacetate film 300. Referring to Figure 4, there is shown a flow chart of a polarizing plate for preventing moisture deformation according to a preferred embodiment of the present invention. The polarizing plate 100 for producing the above moisture-proof deformation comprises the following steps: First, referring to the step S41, the first cellulose triacetate film 1〇1 and the first cellulose diacetate film 1〇3 are provided. The first triacetate film ι〇ι has an upper surface 101a and a first side wall m adjacent to the upper surface 1〇1a; the second triacetylcellulose film 103 has a lower surface 1〇3& and abutting the lower surface The second side wall in 103a. Next, referring to step S42, a polyvinyl alcohol film 1〇5 is provided so that the polyethylene 13 1345084 enol film 105 is located between the upper surface i〇la and the lower surface I〇3a. Then, the waterproof layer 1〇7 is provided with reference to step S43, and the first side wall 111 and the second side wall 113 are connected in a continuous manner by the anti-shen β floor waterproof layer 107, thereby making the waterproof layer 107 and the first triacetate The cellulose film 1 错 错 τ 一 1-2 cellulose acetate thin 胄 103 forms a closed cavity t 120 to accommodate a polyvinyl alcohol film 1 〇 5. The step S43 of providing the waterproof layer 170 includes a coating process of “coating the epoxy resin between the first sidewall Η and the second sidewall 113 by spraying and smearing, by the first sidewall, The second side wall 113 and the third side wall U5 are formed on the plane 117 (as shown in FIG. 2B). Or (as shown in FIG. 3), the epoxy resin is filled in the first side wall 315'. The upper surface of the cellulose triacetate film is in the recess 319 defined by the lower surface 303b of the second triacetate film 303.
另外，在進行塗佈製程S432之前，有需要對第一三醋 酸纖維素薄膜1G1、第二三醋酸纖維素薄膜1()3以及聚乙稀 醇薄膜105進行熱延伸與熱定型步驟（請參照步驟s43i)，藉 以形成一塊單層偏光板。 後續睛參照步驟S44，提供具有防潮溼形變功能之偏光 板1 〇〇保濩膜121、一黏著層123以及一離形膜125。使 保護膜121位於第二三醋酸纖維素薄膜1〇3之上，相對於下 表面103a之一側；使黏著層123位於第一三醋酸纖維素薄膜 ιοί之上，相對於上表面101a之一側；以及使離形膜125位 於黏著層123上相對於第二三醋酸纖維素薄膜1()3之一側。 值得注意的是’防水層107的塗佈製程S32可以針對單 層偏光板’在其第—側壁lu與第二側壁113之間喷塗和塗 抹環氧樹脂。然而有鑑於防水層的塗佈製程S32較不易在單 層偏光板的側邊實施，因此本發明的較佳實施例也可以將複 數個單層偏光板加以堆疊，然後再於堆疊的偏光板之側壁進 行防水層1〇7的塗佈。 明參照第5圖，第5圖係根據本發明的另一較佳實施例 所綠不的一種製造防潮溼形變之偏光板100的流程圖。製造 上述防潮溼形變之偏光板包括下述步驟： 首先請參照步驟S51，提供第一三醋酸纖維素薄膜1 〇 1 與第二三醋酸纖維素薄膜103。第一三醋酸纖維素薄臈1〇1 具有一上表面l〇la，以及鄰接上表面1〇la的第一側壁m ; 第一二醋酸纖維素薄膜1〇3具有一下表面i〇3a，以及鄰接下 表面103a的第二側壁113。 接著請參照步驟S52 ’提供聚乙烯醇薄膜1〇5，使聚乙 烯醇薄膜105位於上表1 〇 1 a面與下表面丨〇3a之間。 後續請參照步驟S53 ’提供保護膜121、黏著層U3以 及離形膜125。使保護膜121位於第二三醋酸纖維素薄膜1〇3 之上，相對於下表面l〇3a之一侧；使黏著層123位於第一三 醋酸纖維素薄膜1〇1之上，相對於上表面1〇la之一側；以及 使離形膜125位於黏著層123上相對於第二三醋酸纖維素薄 膜10 3之' —側。 請再參照S54，對第一三醋酸纖維素薄膜1〇1、第二三 醋酸纖維素薄膜103 '聚乙烯醇薄膜1〇5、保護膜12卜黏著 層123以及離形膜125進行熱延伸與熱定型步驟，藉以形成 塊單層偏光板。 1345084 . 再將複數個該單層偏光板加以堆疊（請參照步驟 S55)， 經過磨邊或裁切後’再進行塗佈製程（請參照步驟S56)，將 %氧樹脂塗佈於每一塊單層偏光板的第一側壁與第二側壁 • 之間。然後，再將每一塊側邊塗佈有防水層單層的偏光板加 - 以分離（請參照步騾S57)，以完成防潮溼形變之偏光板的製 作。 根據以上所述之較佳實施例，本發明之技術特徵係採用 φ 防水材質，例如環氧樹脂塗佈於由兩塊三醋酸纖維素薄膜所 包覆的聚乙烯醇薄膜周邊部份，藉由防水層與第一三醋酸纖 维素薄膜和第二三醋酸纖維素薄膜所形成的密閉防水腔室 • 來谷置聚乙烯醇薄膜，防止聚乙烯醇薄膜吸收由偏光板週邊 部所滲入的溼氣，解決習知技術，因為防潮處理不足造成偏 光板週邊扭曲變形的問題。 雖然本發明已以較佳實施例揭露如上，然其並非用以限 疋本發明，任何相關技術領域具有通常知識者，在不脫離本 • 發明之精神和範圍内，當可作各種之更動與潤飾，因此本發 明之保濩鲍圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 為讓本發明之目的、特徵、優點與實施例能更明顯易 懂，所附圖式之說明如下： 第1圖係根據本發明的一較佳實施例所繪示之裝設有防 潮溼形變偏光板100的液晶顯示器結構示意圖。 第2A圖係繪示第1圖之防潮座形變偏光板⑽的結構 16 13.45084 7F /¾ 圖 0 第2B圖係緣不帛1圖之防潮渥形變偏光板100的結構 杳1J面圖。 第3圖係根據本發明之第二較佳實施例所繪示之防潮溼 形變偏光板300的結構剖面圖。 第4圖係根據本發明的較佳實施例所繪示的一種製造防 潮澄形變之偏光板1〇〇的流程圖。 第5圖係根據本發明的另一較佳實施例所繪示的一種製 造防潮、屋形變之偏光板1 〇〇的流程圖。 為了清楚繪示起見，圖示中的元件並未按照比例尺加以 繪不。在不同圖示之中，元件參照號碼可能會有重複’用以 標示相對應或相似的元件。 【主要元件符號說明】 1〇 :液晶顯示器 100 :偏光板 100’ ：偏光板In addition, before the coating process S432 is performed, it is necessary to perform a heat stretching and heat setting step on the first triacetate film 1G1, the second triacetate film 1 () 3, and the polyethylene film 105 (please refer to Step s43i), thereby forming a single-layer polarizing plate. Next, referring to step S44, a polarizing plate 1 having a moisture-proof deformation preventing function, an adhesive layer 123, and a release film 125 are provided. The protective film 121 is placed on the second triacetylcellulose film 1〇3, on one side with respect to the lower surface 103a; the adhesive layer 123 is placed on the first cellulose triacetate film ιοί, with respect to one of the upper surfaces 101a. Side; and the release film 125 is positioned on the adhesive layer 123 on one side of the second cellulose triacetate film 1 (). It is to be noted that the coating process S32 of the water repellent layer 107 can spray and apply epoxy resin between the first side wall lu and the second side wall 113 for the single layer polarizing plate. However, in view of the fact that the coating process S32 of the waterproof layer is less likely to be implemented on the side of the single-layer polarizer, the preferred embodiment of the present invention can also stack a plurality of single-layer polarizers and then stack the polarizers. The side wall is coated with the waterproof layer 1〇7. Referring to Fig. 5, a fifth embodiment is a flow chart for manufacturing a moisture-proof polarizing plate 100 according to another preferred embodiment of the present invention. The above-mentioned moisture-proof deformation polarizing plate comprises the following steps: First, referring to step S51, a first triacetylcellulose film 1 〇 1 and a second triacetate film 103 are provided. The first triacetate cellulose crucible 1〇1 has an upper surface 10a, and a first side wall m adjacent to the upper surface 1〇1a; the first cellulose diacetate film 1〇3 has a lower surface i〇3a, and Adjacent to the second side wall 113 of the lower surface 103a. Next, referring to step S52', a polyvinyl alcohol film 1〇5 is provided, and the polyvinyl alcohol film 105 is placed between the upper surface 1 与 1 a surface and the lower surface 丨〇 3a. Subsequently, the protective film 121, the adhesive layer U3, and the release film 125 are provided with reference to step S53'. The protective film 121 is placed on the second cellulose triacetate film 1〇3 on one side with respect to the lower surface l〇3a; the adhesive layer 123 is placed on the first triacetylcellulose film 1〇1, relative to the upper side. One side of the surface 1〇la; and the release film 125 is positioned on the adhesive layer 123 with respect to the 'side' of the second cellulose triacetate film 103. Referring to S54, the first triacetylcellulose film 1〇1, the second triacetate film 103' polyvinyl alcohol film 1〇5, the protective film 12, the adhesive layer 123, and the release film 125 are thermally extended. A heat setting step to form a bulk single layer polarizer. 1345084. Further stacking a plurality of the single-layer polarizing plates (refer to step S55), after edging or cutting, 're-coating process (refer to step S56), applying % oxygen resin to each block Between the first side wall and the second side wall of the layer polarizer. Then, each of the polarizing plates coated with a single layer of the waterproof layer is further separated (see step S57) to complete the preparation of the moisture-proof polarizing plate. According to the preferred embodiment described above, the technical feature of the present invention is applied to a peripheral portion of a polyvinyl alcohol film coated with two cellulose triacetate films by using a φ waterproof material such as epoxy resin. The waterproof layer and the first triacetate film and the second cellulose triacetate film form a sealed waterproof chamber. The polyvinyl alcohol film is applied to prevent the polyvinyl alcohol film from absorbing the moisture infiltrated by the peripheral portion of the polarizing plate. Gas, solve the conventional technology, because the moisture-proof treatment is insufficient to cause distortion of the periphery of the polarizing plate. While the invention has been described above by way of a preferred embodiment, the invention is not intended to be limited to the scope of the invention, and various modifications may be made without departing from the spirit and scope of the invention. Retouching, therefore, the warranty of the present invention is defined by the scope of the patent application attached to it. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the objects, features, advantages and embodiments of the present invention more obvious, the description of the drawings is as follows: FIG. 1 is a diagram of a preferred embodiment of the present invention. A schematic diagram of a liquid crystal display equipped with a moisture-proof deformation polarizing plate 100. Fig. 2A shows the structure of the moisture-proof seat-shaped polarizing plate (10) of Fig. 1. 13.45084 7F /3⁄4 Fig. 0 Fig. 2B shows the structure of the moisture-proof 渥-shaped polarizing plate 100 of the figure 杳1J. Fig. 3 is a cross-sectional view showing the structure of a moisture-proof deformation polarizing plate 300 according to a second preferred embodiment of the present invention. Fig. 4 is a flow chart showing the manufacture of a moisture-proof polarizing plate 1 according to a preferred embodiment of the present invention. Fig. 5 is a flow chart showing the manufacture of a moisture-proof, house-shaped polarizing plate 1 according to another preferred embodiment of the present invention. For the sake of clarity, the elements in the figures are not drawn to scale. Among the different illustrations, the component reference numbers may be repeated ' to indicate corresponding or similar components. [Main component symbol description] 1〇: Liquid crystal display 100: Polarizer 100': Polarizer
101 :第一三醋酸纖維素薄膜 101a :上表面 102 .背光模組 103 :第二三醋酸纖維素薄膜 l〇3a :下表面 104 :液晶顯示面板 105 ·聚乙烯醇薄膜 105a :入光面 105b .出光面 111 :第一侧壁 111 b :子側壁 111 d :子側壁 107 :防水層 111a :子侧壁 111 c :子側壁 113 :第二側壁 17 13.45084 113 a :子側壁 113 c :子側壁 115 :第三側壁 115b :子側壁 115d :子側壁 120 :密閉腔室 123 :黏著層 3 0 0 偏光板 3 01 a :上表面 303a :下表面 3 0 5 a .入光面 307 :防水層 311 a :子侧壁 3 13 :第二側壁 3 13 b :子側壁 315a :子侧壁 3 19 :凹室 保護膜 117 121 125 301 303 305 113b :子側壁 113d :子側壁 115 a :子側壁 115c :子侧壁 平面 保護膜 離形臈 321 325 S41 第一三醋酸纖維素薄膜 第二三醋酸纖維素薄膜 聚乙烯醇薄膜 305b ·出光面 311 :第一側壁 311 b :子側壁 313a :子側壁 315 :第三侧壁 315b :子側壁 320 :密閉腔室 323 :黏著層 離形膜 提供第-三醋酸纖維素薄膜與第二三醋酸纖維素薄 膜。第-三醋酸纖維素薄膜具有一上表面，以及鄰接上 表面的第一側壁；第二三醋酸纖維素薄膜具有一下表 面，以及鄰接下表面的第二側壁。 S42 .提供聚乙’席醇薄膜，使聚乙烯醇薄膜位於上表面與下 18 13.45084 表面之間。 S43 ^供防水層，藉由防水層將第—側壁與第二側壁以連 ::的方式連接在一起，以形成一密閉腔室容置聚乙 溥膜。 S431對第〜醋酸纖維素薄膜、第二三醋酸纖維素薄膜以 及該聚乙烯醇薄膜進行熱延伸與熱定型步驟，藉以 一塊單層偏光板。 S你進行塗佈製程’將環氧樹脂藉.由噴塗和塗抹的方式塗 佈於第-侧壁與第二側壁之間，由第一側壁、第二側壁 和第三側壁所形成的平面上。 S44:提供防潮座形變之偏光板保護膜、黏著層以及離形膜， 使保護膜位於第二三醋酸纖維素薄膜之上，相對於下表 面之-側’使黏著層位於第—三醋酸纖維素薄臈之上， 相對於上表面之一側；以及使離形膜位於黏著層上相對 於第二三醋酸纖維素薄膜之—側。 如：提供第-三醋酸纖维素薄媒與第二三醋酸纖維素薄 :。第-三醋酸纖維素薄膜具有一上表面，以及鄰接上 表面的第一側壁；第二三醋酸纖維素薄膜具有一下表 面’以及鄰接下表面的第二侧壁。 S52:提供聚乙料薄膜，使聚乙稀醇上表面與下 表面之間。 S53 :提供㈣膜、黏著層以及離形膜，使保護膜位於第二 :醋酸纖維素薄膜之上’相對於下表面之一側;使點著 層位於第一三醋酸纖維素薄膜之上，相對於上表面之一 19 13-45084 乂及使離形膜位於黏著層上相對於第 素薄膜之一側。 、 ㈣纖維素薄膜、第：三醋酸纖維素薄膜、 汆乙烯醇薄膜、保護膜、黏著層以及離形 與熱定型步驟 S55 ’將複數個該單層偏光板加以堆疊。101: first triacetate film 101a: upper surface 102. backlight module 103: second triacetate film l〇3a: lower surface 104: liquid crystal display panel 105; polyvinyl alcohol film 105a: light incident surface 105b The light-emitting surface 111: the first side wall 111b: the sub-side wall 111d: the sub-side wall 107: the waterproof layer 111a: the sub-side wall 111c: the sub-side wall 113: the second side wall 17 13.45084 113 a: the sub-side wall 113 c: the sub-side wall 115: third side wall 115b: sub-side wall 115d: sub-side wall 120: airtight chamber 123: adhesive layer 3 0 0 polarizing plate 3 01 a : upper surface 303a: lower surface 3 0 5 a. light-incident surface 307: waterproof layer 311 a: sub-side wall 3 13 : second side wall 3 13 b : sub-side wall 315a : sub-side wall 3 19 : alcove protective film 117 121 125 301 303 305 113b : sub-side wall 113d : sub-side wall 115 a : sub-side wall 115 c : Sub-side plane protective film release 臈321 325 S41 First triacetate film, second triacetate film, polyvinyl alcohol film 305b, light-emitting surface 311: first side wall 311 b: sub-side wall 313a: sub-side wall 315: Third side wall 315b: sub-side wall 320: closed chamber 323: adhesive layer release film provides first-three vinegar Cellulose triacetate film and the second film. The first-triacetate film has an upper surface and a first side wall adjacent to the upper surface; the second triacetylcellulose film has a lower surface and a second side wall adjacent to the lower surface. S42. Providing a polyethylene film to form a polyvinyl alcohol film between the upper surface and the lower surface of the surface of 13.34084. S43^ is provided with a waterproof layer, and the first side wall and the second side wall are connected together by a waterproof layer to form a sealed chamber for accommodating the polyethylene film. S431 performs a heat stretching and heat setting step on the cellulose acetate film, the second cellulose triacetate film, and the polyvinyl alcohol film, thereby using a single-layer polarizing plate. S you carry out the coating process 'coating epoxy resin between the first side wall and the second side wall by spraying and painting, on the plane formed by the first side wall, the second side wall and the third side wall . S44: providing a polarizing plate-shaped polarizing plate protective film, an adhesive layer and a release film, so that the protective film is located on the second cellulose triacetate film, and the adhesive layer is located on the third-acetate fiber relative to the side of the lower surface Above the thin crucible, on one side with respect to the upper surface; and the release film is located on the adhesive layer with respect to the side of the second cellulose triacetate film. Such as: providing a third-acetic acid cellulose thin medium and a second triacetate cellulose thin: The first cellulose triacetate film has an upper surface and a first side wall adjacent to the upper surface; the second cellulose triacetate film has a lower surface & a second side wall adjacent to the lower surface. S52: providing a polyethylene film between the upper surface and the lower surface of the polyethylene glycol. S53: providing (iv) a film, an adhesive layer, and a release film, wherein the protective film is located on the second: the cellulose acetate film is 'on one side of the lower surface; and the dot layer is on the first triacetate film, Relative to one of the upper surfaces 19 13-45084 使 and the release film is located on the adhesive layer with respect to one side of the first film. And (4) a cellulose film, a: cellulose triacetate film, a ruthenium vinyl alcohol film, a protective film, an adhesive layer, and a release and heat setting step S55' to stack a plurality of the single-layer polarizers.
二三醋酸纖維 膜進行熱延伸 S56經過磨邊或裁切後，再進行塗佈製程，將環氧樹脂塗 佈於每一塊單層偏光板的第一側壁與第二側壁之間。 S57 :將每一塊側邊塗佈有防水層單層的偏光板加以分離。The bis-acetate film is thermally stretched. After the S56 is edging or cutting, a coating process is performed to coat the epoxy resin between the first side wall and the second side wall of each single-layer polarizing plate. S57: Separating each of the polarizing plates coated with a single layer of the waterproof layer on the side.
2020