200307601 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係有關構成液晶顯示板之液晶元件光源側表面 上進行黏貼層合之層合偏光薄膜的製造方法。 【先前技術】 如圖1所不’構成液晶顯不板之液晶兀件光源側表面 上黏貼直線偏光薄膜。亦即，液晶元件10之光源側表面上 ，藉由黏著劑層12被黏貼層合直線偏光薄膜14，構成液晶 顯示板者。液晶顯示板逐年被要求更鮮明之影像，更減少 光源消耗電力者。因此，爲減少液晶顯示板之光源消耗電 力，有效利用光源之光爲目的下，一直被使用於直線偏光 薄膜之光源側暫時反射未平行於直線偏光薄膜之透光軸的 光，藉由另設置反射板使再度可透過反射光之直線偏光分 離薄膜進行黏貼層合之層合偏光薄膜者。此層合偏光薄膜 現狀再大亦不過1邊爲150cm左右。 圖2係代表層合偏光薄膜18之構成例者。直線偏光薄 膜20與直線偏光分離薄膜22係介著黏著劑層24被黏貼層合 者。於直線偏光薄膜20之另一面設置爲黏著層合偏光薄膜 於液晶元件之黏著劑層26以及保護該黏著劑層26之剝離薄 膜層28。且，直線偏光分離薄膜之反面被層合保護薄膜30 者。保護薄膜30於最終步驟被剝離去除之。 具有該構成之層合偏光薄膜係藉由黏著劑層合直線偏 光薄膜與直線偏光分離薄膜之步驟所製造者。（如：特開 -4- (2) (2)200307601 平1 1-27 1534號公報（段落〔0005〕〜〔0007〕及特開 2000-275436 號公報（段落〔 0034〕）。 惟，放置該步驟取得之層合偏光薄膜後，黏貼於液晶 元件側之直線偏光薄膜側（圖2之A面側）產生凹陷之卷 縮（以下稱「逆卷縮」。），此逆卷縮其層合偏光薄膜之 1邊爲8 cm以上，特別爲20 cm以上最爲明顯。該大逆卷縮 於剝離剝離薄膜28後，黏貼於液晶元件10時，易殘留氣泡 於黏著面，產生不良液晶板之原因。 因此，該層合偏光薄膜被要求實質上未產生逆卷縮、 未卷縮、或即使卷縮，其直線偏光薄膜側亦呈凸卷縮（以 下稱「正卷縮」）者。 【發明內容】 本發明之目的係爲提供一種未產生實質之逆卷縮的層 合偏光薄膜製造方法者。 本發明者爲達成該目的，進行精密硏討取得未產生實 質逆卷縮之層合偏光薄膜後，發現調整直線偏光分離薄膜 之水分率於一定範圍下，藉由層合直線偏光薄膜後，可取 得未產生逆卷縮之層合偏光薄膜者，進而完成本發明。 亦即，本發明係層合直線偏光薄膜與直線偏光分離薄 膜之製造層合偏光薄膜的方法者。 其特徵係於層合前，具有調整直線偏光分離薄膜之水 分率爲0.3~0.8重量％之水分率調整步驟者。 藉由本發明方法後，可取得實質上無逆卷縮之層合偏 (3) (3)200307601 光薄膜。 其中實質上未逆卷縮係指黏貼於液晶元件時出現殘留 氣泡等之不良現象的逆卷縮之意，若干逆卷縮被允許，以 20inch尺寸之層合偏光薄膜，下記卷縮量約爲l~2mm者。 逆卷縮量約爲3mm以上則產生不良情況而不理想。 〔發明實施之形態〕 本發明中使直線偏光分離薄膜之水分率調成0.3〜0.8 重量％，較佳者爲0.4〜0.6 重量％後，進行與直線偏光薄 膜之層合。一般，由乾燥直線偏光分離薄膜狀態至加濕後 只要可調整於所定水分率即可，如：藉由於水中浸漬薄膜 之方法，使水以霧狀、噴霧狀、噴灑狀進行接觸之方法， 通過高濕度狀態之室內，使坏體保存於高濕度狀態之室內 的方法，進行水分率之調整即可。 做爲水分率之調整方法者，直線偏光分離薄膜進行走 行之同時，於薄膜上使水份呈噴霧狀進行噴霧之方法爲理 想使用者。附著水份之薄膜進行卷取、靜置之。薄膜以一 定速度進行連續性走行者宜。變更水份量時，只要變更薄 膜之走行速度即可。 直線偏光分離薄膜通常其保護薄膜以黏著狀態下被使 用之，此時，將水份噴霧於保護薄膜上者宜。 水分率係藉由一般樹脂、無機粉體之水分率測定用之 測定方法進行測定者。具體而言，將測定對象物進行加熱 後去除水份，由加熱前與加熱後之重量差求取水分率者。 -6 - (4) (4)200307601 上述本發明中該直線偏光分離薄膜爲聚酯薄膜者宜。 直線偏光分離薄膜以聚酯做爲主成份之薄膜者宜’特 別是以聚乙烯萘二甲酸酯、聚乙烯萘二甲酸酯單位做爲主 成份之共聚物做爲原料之薄膜者其性能上爲較佳者，如： 做爲商品名「DBEF」（住友3M公司）被市販者之例。此 聚酯所組成之直線偏光分離薄膜於製造後，直接做爲坏體 卷取後供給之，因此，坏體薄膜之水分率其實測後爲 0.1〜0.2重量％者，低於其薄膜之飽和水分率（約0.8重 量％ )，與高水分率之直線偏光薄膜進行層合時藉由水份 之移動更易出現逆卷縮。 又，直線偏光分離薄膜如上述，透過平行透光軸方向 之光後，具有與透光軸交叉之平行反射軸方向之光進行反 射機能之薄膜者、反射型偏光薄膜、非吸收型偏光薄膜、 或被反射之光進行再利用後提昇亮度，因此，亦稱亮度提 昇薄膜者。 另外，針對此直線偏光薄膜透過平行透光軸方向之光 後，具有與透光軸交叉之平行吸收軸方向光之吸收機能薄 膜者，亦稱吸收型偏光薄膜。 直線偏光薄膜係使用公知之直線偏光薄膜者。直線偏 光薄膜一般以三乙醯纖維素（TAC )薄膜做爲主材料所構 成者，較理想之構成爲TAC薄膜與聚乙烯醇系薄膜相互 之層合薄膜，具體例如：至少具有3層TAC薄膜/聚乙烯 醇系薄膜/TAC薄膜之構成例者。構成此等直線偏光薄膜 之樹脂材料均爲高極性、高飽和水分率之材料者。一般使 (5) (5)200307601 用如上記之多層結構之直線偏光薄膜由於抑制其自體之卷 縮而水分率較高，被調整於2.5重量％者。爲此，藉由與 乾燥狀態之聚酯系直線偏光分離薄膜之層合後，水份由直 線偏光薄膜移行至直線偏光分離薄膜後，出現卷縮。 藉由設定調整直線偏光分離薄膜之水分率的水分率調 整步驟後，所取得層合偏光薄膜不易出現逆卷縮之理由仍 未明朗，惟，依水份由高水分率直線偏光薄膜往低水分率 之直線偏光分離薄膜移行後其各薄膜之尺寸變化被控制者 爲其一大主因可被推斷之。 通常，於直線偏光分離薄膜之一面被層合由聚乙烯對 苯二甲酸酯等所成之保護薄膜。直線偏光薄膜被層合於層 合此保護薄膜面之反面。保護薄膜係黏著於液晶元件後， 被剝離去除者。 【實施方式】 〔實施例〕 以下，針對具體所示之實施例等進行說明本發明之構 成與效果。 另外，卷縮量係將直線偏光薄膜側向下，置於平板上 ，求出由層合偏光薄膜四頂點平板之高度平均値。+代表 正卷縮、-代表逆卷縮。 (實施例1 ) 將厚度132 μιη之聚乙烯萘二甲酸酯製之直線偏光分離 (6) (6)200307601 薄膜「DBEF」（住友3M公司製，另一面層合聚乙烯萘二 甲酸酯之保護薄膜，水分率：約〇·2重量％ )切成308mm X 235mm取5片備用，分別於相對濕度8〇%，溫度2〇它之環 境下放置24小時。放置後水分率爲〇. 6 2重量％ (水分率 於剝離保護膜下進行測定者）。此直線偏光分離薄膜立刻 置入防濕袋進行密封’ 2小時後取出，於未層合保護薄 膜面層合直線偏光薄膜後，取得層合偏光薄膜。層合時使 用黏著滾輥者。 所使用直線偏光薄膜其水分率約爲2.5重量％，具有 TAC /聚乙嫌醇系薄膜 /TAC(80 μπιχ25 μπιχ80 μιη)之 3 層結構，具25 μπι丙烯系感壓型黏著劑層者。 將取得層合偏光薄膜置入防濕袋後進行密封，2 0 °C 下經過表1所示時間之後取出測定卷縮量。卷縮量之測定 結果如表1所不。 (實施例2 ) 於相對濕度64%，溫度22 °C之環境下放置直線偏光 分離薄膜「DBEF」24小時。放置後之水分率爲0.50重 量％ (水分率於剝離保護膜下進行測定者）。除使用此直 線偏光分離薄膜之外，與實施例1同法製成層合偏光薄膜 將取得層合偏光薄膜置入防濕袋進行密封，20 °C下 經過表1所示之時間後，取出測定卷縮量。測定結果如表1 (7) 200307601 (比較例1 ) 將厚度132 μιη之直線偏光分離薄膜「DBEF」（水分 率〇·17 重量％)切成308mmx 235mm取5片備用，置於相 對濕度24%，溫度22 t之環境下24小時，水分率仍呈 0.17重量％ (水分率於剝離保護薄膜下進行測定者）。200307601 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a method for manufacturing a laminated polarizing film that is laminated on the light source side surface of a liquid crystal element constituting a liquid crystal display panel. [Prior art] A linear polarizing film is pasted on the light source side surface of the liquid crystal element constituting the liquid crystal display panel as shown in Fig. 1. That is, the linear polarizing film 14 is laminated on the light source side surface of the liquid crystal element 10 by the adhesive layer 12 to constitute a liquid crystal display panel. LCD panels are required to have brighter images and reduce power consumption by light sources. Therefore, in order to reduce the power consumption of the light source of the liquid crystal display panel and effectively use the light of the light source, the light source side of the linear polarizing film has been used to temporarily reflect light that is not parallel to the transmission axis of the linear polarizing film. The reflective plate is a laminated polarizing film that can pass through the linearly polarized light separating film for reflecting light and stick and laminate again. This laminated polarizing film is as big as 150cm on one side. FIG. 2 shows a configuration example of the laminated polarizing film 18. The linearly polarizing thin film 20 and the linearly polarizing separation film 22 are laminated with an adhesive layer 24 interposed therebetween. A polarizing film is laminated on the other side of the linear polarizing film 20 to adhere to the adhesive layer 26 of the liquid crystal element and a peeling film layer 28 for protecting the adhesive layer 26. The opposite side of the linearly polarized light separation film is laminated with a protective film 30. The protective film 30 is peeled and removed in the final step. The laminated polarizing film having this structure is manufactured by a step of laminating a linear polarizing film and a linear polarizing separation film with an adhesive. (Eg: JP-4- (2) (2) 200307601 Ping 1 1-27 1534 (paragraphs [0005] to [0007] and JP 2000-275436 (paragraphs [0034]). After the laminated polarizing film obtained in this step, the linearly polarizing film side adhered to the liquid crystal element side (the side of the A surface in FIG. 2) has a concave curl (hereinafter referred to as “reverse curl”), and this layer is reversely rolled. One side of the polarizing film is 8 cm or more, especially 20 cm or more. This large reverse is rolled up after peeling off the peeling film 28 and sticking to the liquid crystal element 10, it is easy to leave bubbles on the adhesive surface, resulting in a defective liquid crystal panel. Therefore, the laminated polarizing film is required to have substantially no reverse shrinkage, no shrinkage, or even if the linearly polarizing film side is convexly curled (hereinafter referred to as "positive curling"). [Summary of the Invention] The purpose of the present invention is to provide a method for manufacturing a laminated polarizing film that does not produce substantial reverse shrinkage. In order to achieve this purpose, the present inventors conducted a precise investigation to obtain a laminate that did not produce substantial reverse shrinkage. After polarizing the film, it was found to adjust the linear polarization The moisture content of the film is within a certain range, and after the linear polarizing film is laminated, a laminated polarizing film without reverse curl can be obtained, and the present invention is completed. That is, the present invention is a laminated linear polarizing film and a straight line. A method for manufacturing a polarized light separation film, which is a method for manufacturing a laminated polarized film. It is characterized by having a moisture content adjustment step for adjusting the moisture content of the linearly polarized light separation film of 0.3 to 0.8% by weight before lamination. After the method of the present invention, Laminated partial (3) (3) 200307601 light film with substantially no inverse shrinkage is obtained. Among them, the substantially non-inverse shrinkage refers to the meaning of inverse shrinkage in which adverse phenomena such as residual bubbles occur when sticking to liquid crystal elements. Reverse shrinkage is allowed. Laminated polarizing films with a size of 20 inches are described below with a shrinkage of about 1 ~ 2mm. If the reverse shrinkage is more than 3mm, it will cause undesirable problems. [Inventive Implementation Mode] The present invention After adjusting the moisture content of the linearly polarizing separation film to 0.3 to 0.8% by weight, preferably 0.4 to 0.6% by weight, lamination with the linearly polarizing film is performed. Generally, the linearly polarizing separation is performed by drying. After the film is humidified, it can be adjusted to a predetermined moisture content. For example, by immersing the film in water, the water is contacted in a mist, spray, or spray form. For the method of keeping the body in a high-humidity room, the moisture content can be adjusted. As a method for adjusting the moisture content, while the linearly polarized separation film is traveling, the water is sprayed on the film to spray the water. It is ideal for users. Films with moisture attached are coiled and left to stand. Films with a constant speed are recommended for continuous travel. When changing the amount of water, you only need to change the travel speed of the film. Linear polarized separation films are usually protected The film is used in an adhesive state. At this time, it is advisable to spray water on the protective film. The moisture content is measured by a measuring method for measuring the moisture content of general resins and inorganic powders. Specifically, the object to be measured is heated to remove water, and the moisture content is determined from the weight difference between before and after heating. -6-(4) (4) 200307601 In the present invention, the linearly polarizing separation film is preferably a polyester film. The linear polarizing separation film is preferably a film with polyester as the main component, especially a film with polyethylene naphthalate and a copolymer of polyethylene naphthalate as the main component. The above are better, for example: As an example of being sold by the marketer under the trade name "DBEF" (Sumitomo 3M). The linearly polarized separation film composed of this polyester is directly supplied as a bad body after being manufactured. Therefore, the moisture content of the bad film is actually 0.1 to 0.2% by weight, which is lower than the saturation of the film. Moisture content (approximately 0.8% by weight), when laminated with a linear polarizing film with a high moisture content, reverse curl is more likely to occur by the movement of moisture. In addition, as described above, the linearly polarized light separation film is a film that has the function of reflecting light in the direction of parallel reflection axis that crosses the transmission axis after transmitting light in the direction of parallel transmission axis, reflective polarizing film, non-absorptive polarizing film, Or the reflected light can be reused to increase the brightness. Therefore, it is also called a brightness enhancement film. In addition, after the linearly polarizing film transmits light parallel to the direction of the transmission axis, it has an absorption function film that absorbs light in the direction of parallel absorption axis that intersects the transmission axis. It is also called an absorption-type polarizing film. The linearly polarizing film is a known linearly polarizing film. Linear polarizing film is generally composed of triacetyl cellulose (TAC) film as the main material. The ideal composition is a laminated film of TAC film and polyvinyl alcohol film. For example, at least three TAC films / Polyvinyl alcohol film / TAC film The resin materials constituting these linear polarizing films are all materials with high polarity and high saturated moisture content. Generally, (5) (5) 200307601 uses the multilayer structure of the linearly polarizing film as described above because the moisture content is suppressed due to its own shrinkage, which is adjusted to 2.5% by weight. For this reason, after lamination with the polyester-based linearly polarizing separation film in a dry state, moisture migrates from the linearly polarizing film to the linearly polarizing separation film, and then curls. After setting the moisture content adjustment step to adjust the moisture content of the linearly polarized separation film, the reason why the obtained laminated polarized film is not prone to reverse shrinkage is still unclear, but the moisture content from the high-moisture linearly polarized film to low moisture is still unknown. After the linearly polarized light separation film has shifted, the size change of each film can be inferred by the controller. Usually, a protective film made of polyethylene terephthalate or the like is laminated on one side of the linearly polarizing separation film. The linearly polarizing film is laminated on the opposite side of the surface on which the protective film is laminated. After the protective film is adhered to the liquid crystal element, it is peeled off. [Embodiment] [Example] Hereinafter, the structure and effect of the present invention will be described with reference to specific examples and the like. In addition, the amount of curling was placed on the flat plate with the linear polarizing film side down, and the average height 値 of the four-vertex flat plate of the laminated polarizing film was obtained. + Stands for forward curl,-stands for reverse curl. (Example 1) Linear polarized light separation made of polyethylene naphthalate with a thickness of 132 μm (6) (6) 200307601 film "DBEF" (manufactured by Sumitomo 3M, laminated with polyethylene naphthalate on the other side) Protective film, moisture content: about 0.2% by weight) Cut into 308mm X 235mm and take 5 pieces for future use, and place them in an environment with a relative humidity of 80% and a temperature of 20 for 24 hours. The moisture content after standing was 0.62% by weight (the moisture content was measured under a peeling protective film). This linearly polarizing separation film was immediately placed in a moisture-proof bag and sealed 'for 2 hours, and was taken out. After the linearly polarizing film was laminated on the unlaminated protective film surface, a laminated polarizing film was obtained. Use laminating rollers when laminating. The linear polarizing film used has a moisture content of about 2.5% by weight, has a three-layer structure of TAC / polyethylene-based film / TAC (80 μm × 25 μm × 80 μm), and has a 25 μm acrylic pressure-sensitive adhesive layer. The obtained laminated polarizing film was placed in a moisture-proof bag and sealed, and after the time shown in Table 1 was elapsed at 20 ° C, the amount of curl was measured. The measurement results of the amount of crimp are shown in Table 1. (Example 2) A linearly polarized separation film "DBEF" was placed in an environment with a relative humidity of 64% and a temperature of 22 ° C for 24 hours. The moisture content after standing was 0.50% by weight (the moisture content was measured under a peeling protective film). Except for using this linearly polarizing separation film, a laminated polarizing film was prepared in the same manner as in Example 1. The obtained laminated polarizing film was placed in a moisture-proof bag and sealed. After the time shown in Table 1 at 20 ° C, it was taken out. The amount of curl was measured. The measurement results are shown in Table 1. (7) 200307601 (Comparative Example 1) A linear polarizing separation film "DBEF" (moisture content: 〇.17% by weight) with a thickness of 132 μm was cut into 308mmx 235mm and 5 pieces were set aside, and the relative humidity was 24% In a temperature of 22 t for 24 hours, the moisture content is still 0.17% by weight (when the moisture content is measured under a peeling protective film).
以該水分率〇 · 1 7重量％之薄膜做爲直線偏光分離薄 膜使用之外，與實施例1同法製成層合偏光薄膜。 將取得層合偏光薄膜置入防濕袋進行密封後，20 °C 下經過表1所示時間後取出進行測定卷縮量。卷縮量之測 定結果如表1所示。 〔表1〕 實施例1 實施例2 比較例1 水分率（w t % ) 0.62 0.05 0.17 經過時 間 (hr) 0 0.5 0.3 0.0 13 9.1 3.8 -4.7 23 9.6 4.5 -5.0 85 9.7 4.9 -4.3 253 8.9 4.0 -3.6A laminated polarizing film was produced in the same manner as in Example 1 except that the thin film having a moisture content of 0.17% by weight was used as a linearly polarizing separation film. The obtained laminated polarizing film was placed in a moisture-proof bag and sealed, and after taking the time shown in Table 1 at 20 ° C, it was taken out to measure the amount of curl. The measurement results of the amount of shrinkage are shown in Table 1. [Table 1] Example 1 Example 2 Comparative Example 1 Moisture content (wt%) 0.62 0.05 0.17 Elapsed time (hr) 0 0.5 0.3 0.0 13 9.1 3.8 -4.7 23 9.6 4.5 -5.0 85 9.7 4.9 -4.3 253 8.9 4.0- 3.6
由表1結果顯示，直線偏光分離薄膜進行加濕後，調 整水分率之後，層合直線偏光薄膜之本發明層合偏光薄膜 均呈正卷縮，與液晶元件相互黏貼時，呈未產生氣泡之良 品，惟，未設定水分率調整步驟之比較例層合偏光薄膜則 -10- (8) 200307601 產生逆卷縮。 (實施例3 )The results from Table 1 show that after the linearly polarized separation film is humidified and the moisture content is adjusted, the laminated polarized film of the present invention in which the linearly polarized film is laminated is positively crimped. However, for the comparative example laminated polarizing film without a moisture content adjustment step, -10- (8) 200307601 resulted in reverse shrinkage. (Example 3)
利用圖3所示之加濕裝置進行調整直線偏光分離薄膜 之水分率。於附保護薄膜之狀態下以一定速度連續性使直 線偏光分離薄膜進行走行之同時，將水份噴霧於保護薄膜 後附著之後，直接卷取於另一蕊心。變更薄膜之走行速度 ，改變水份附著量。卷取薄膜滾筒靜置2天後，取得調整 水分率之直線偏光分離薄膜。 剝離直線偏光分離薄膜之保護薄膜後，進行測定水分 率 〇 將取得水分率調整過之直線偏光分離薄膜立刻置入防 濕袋進行密封，2小時後取出後與實施例1同法層合直線 偏光薄膜於未層合保護薄膜之面，取得20inch上膠（ 420mmx318mm )之層合偏光薄膜。The moisture content of the linearly polarizing separation film was adjusted using a humidifying device shown in FIG. 3. With the protective film attached, the linearly polarized separation film is continuously traveled at a certain speed, while water is sprayed on the protective film and adhered, and then directly wound on another core. Change the running speed of the film to change the amount of moisture attached. After the take-up film roll was left to stand for 2 days, a linearly polarizing separation film was obtained to adjust the moisture content. After peeling the protective film of the linearly polarized separation film, the moisture content was measured. The linearly polarized separation film with the adjusted moisture content was immediately placed in a moisture-proof bag and sealed. After 2 hours, the linearly polarized light was laminated in the same manner as in Example 1 The film is on the side of the unlaminated protective film to obtain a 20-inch laminated (420mmx318mm) laminated polarizing film.
取得之層合偏光薄膜置入防濕袋後進行密封後，2〇 C下經過65小時取出後’測定卷縮量。卷縮量之測定結 果如表2所示。 -11- (9) 200307601 〔表2〕 水分率 (w t % ) 卷縮値（mm) (貼合後65Hrs) 外觀 使用之可否 1 0.30 -1.4 良 可 實施例3 2 0.42 + 0.4 良 可 3 0.61 + 5.8 良 可 4 0.73 + 13.9 良 可The obtained laminated polarizing film was placed in a moisture-proof bag and sealed, and after 65 hours of removal at 20 ° C, the amount of curl was measured. The measurement results of the amount of curl are shown in Table 2. -11- (9) 200307601 [Table 2] Moisture content (wt%) Curled 値 (mm) (65Hrs after bonding) Applicability of appearance 1 0.30 -1.4 Good example 3 2 0.42 + 0.4 Good 3 0.61 + 5.8 OK 4 0.73 + 13.9 OK
水分率爲0.30 重量％時，卷縮量爲-1.4mm，些許逆 卷縮而爲容許範圍者，所取得層合偏光薄膜可安心使用之 〔發明效果〕When the moisture content is 0.30% by weight, the amount of shrinkage is -1.4mm, and the laminated polarizing film can be used with peace of mind if the reversed shrinkage is within the allowable range. [Inventive effect]
本發明方法於黏著液晶元件時，可取得黏著面殘留氣 泡，產生不良液晶板原因之實質上未產生逆卷縮之直線偏 光薄膜與直線偏光分離薄膜所成之層合偏光薄膜者。 【圖式簡單說明】 〔圖1〕 代表於液晶元件層合偏光薄膜結構之截面圖。 〔圖2〕 代表層合偏光薄膜結構之截面圖。 〔圖3〕 連接於直線偏光分離薄膜後，噴霧水霧後進行加濕裝 -12- (10) 200307601 置之槪略圖。 【符號說明】 1 0 :液晶元件 1 2 :黏著劑層When the method of the present invention is used to adhere a liquid crystal element, it is possible to obtain a laminated polarized film formed by a linearly polarized film and a linearly polarized separation film that do not produce substantially reverse roll-up due to the remaining bubbles on the adhesive surface and the cause of the defective liquid crystal panel. [Brief description of the drawing] [Fig. 1] A cross-sectional view representing a structure of a laminated polarizing film of a liquid crystal element. [Fig. 2] A cross-sectional view showing a structure of a laminated polarizing film. [Fig. 3] After being connected to the linearly polarizing separation film, spray with water mist and perform humidification. -12- (10) 200307601 [Symbol description] 1 0: Liquid crystal element 1 2: Adhesive layer
1 4 :直線偏光薄膜 18 :積層偏光薄膜 20 :直線偏光薄膜 22 :直線偏光分離薄膜 24 :黏著劑層 2 6 :黏著劑層 28 :剝離薄膜 30 :保護薄膜1 4: Linear polarizing film 18: Multilayer polarizing film 20: Linear polarizing film 22: Linear polarizing separating film 24: Adhesive layer 2 6: Adhesive layer 28: Peeling film 30: Protective film
3 2 :薄膜送出滾輥 34 :薄膜捲取滾輥 36 :霧噴霧裝置 -13-3 2: Film feed roller 34: Film take-up roller 36: Mist spray device -13-