TW554182B - Polarizer and method of producing the same - Google Patents

Abstract

An iodine-PVA polarizing element 30 mum thick is dried by heating at 50 DEG C for 30 minutes to thereby obtain a polarizing element having a moisture content of 4.9% by weight. A pair of 100 mum-thick norbornene resin films (tradename ""ARTON"" made by JSR corporation) used as protective films are stuck to opposite surfaces of the obtained polarizing element through layers of PVA adhesive agents which are applied on the pair of nonbornene resin films respectively and dried. Thus, a polarizer is obtained.

Description

554182554182

本專利申請案件為根據日本專利申請2〇〇〇_2〇886 1和 2001-143834，將其列述於此以供參考。 發明之背景 " 1. 發明之領减 ，本t明為有關一種使用於液晶顯示裝置之偏光鏡，以及 製造此偏光鏡之方法；以及特別針對具有絕佳環境耐久性 的偏光鏡，即使在例如高溫狀態或高濕度狀態之極嚴酷的 環境下，仍僅導致極小變化之光線透射率、偏光度、影像 L 相關技術之描诚 〃近年來，液晶顯示裝置已被使用於個人電腦、桌上型計< =器、電子鐘、文字處理機、汽車以及其它機器之中。隨 者此類液晶顯示裝置之普及，具有高偏光性能之偏光鏡的 需求亦有增加之趨勢。由於此類液晶顯示裝置近年已特別-普遍被使用於各種領域’因此，必需假設此液晶顯示裝置· 極有可能被使用於嚴酷之環境下。因此極需一種具有絕佳 j境而:久性的偏光鏡，其即使在例如高溫狀態或高濕度狀 L之％丨兄下，仍僅導致極小變化之光線透射率、偏光 影像色調、等等。 由於其成本低廉並且有絕佳之偏光性能，故通常使用 此類型偏光鏡之背景技術為以下列組成之偏光鏡，即含吸 =峨或雙色染料於其上之聚乙婦醇（PVA)薄膜所製成的偏 、’ 7G件，以及一對分別以三醋酸纖維素薄膜或其 似物製成之保護薄膜’其被配置於偏光元件之相反、前和This patent application is based on Japanese Patent Applications 2000-028861 and 2001-143834, which are listed here for reference. BACKGROUND OF THE INVENTION 1. This invention refers to a polarizer used in a liquid crystal display device and a method for manufacturing the polarizer; and particularly to a polarizer with excellent environmental durability, even in For example, under the severe environment of high temperature or high humidity, only a small change in light transmittance, polarization, and image L is described. In recent years, liquid crystal display devices have been used in personal computers and desks. Models < = devices, electronic clocks, word processors, automobiles and other machines. With the popularity of such liquid crystal display devices, the demand for polarizers with high polarization performance has also increased. Since this type of liquid crystal display device has been particularly used in various fields in recent years', it must be assumed that this liquid crystal display device is likely to be used in harsh environments. Therefore, there is a great need for a polarizing lens with excellent durability: even under high temperature or high humidity, %% of L, for example, it still results in very small changes in light transmittance, polarized image hue, etc. . Because of its low cost and excellent polarizing performance, the background technology of this type of polarizer is usually a polarizer with the following composition, namely polyethylenol (PVA) film containing absorbing or fluorescent dyes on it The produced polarized, '7G pieces, and a pair of protective films made of a cellulose triacetate film or the like' are arranged on the opposite, front and

C:\2D-00DE\91-03\90133266.ptd 第5頁 554182 五、發明說明（2) 後表面，而使偏光元件被固定於該對保護薄膜之間。 亦即，此偏光鏡之背景技術的製造方法包括下列步驟· 將PVA薄膜染上雙色碘或雙色染料使吸附其上；以 二硼酸鹽（diborate)、或其類似物交聯該PVA薄膜；pVA薄 膜之單軸（uni axial ly)定向（其染色、交聯和定向之步驟 不需分開進行，亦即，可同時進行，並且其進行之順^序並 特殊之限制）；乾燥該PVA薄膜；以及將PVA薄膜黏上例如… TAC薄膜之保護薄膜。由於TAC薄膜具有高濕度滲透性和言 濕度吸收率，因此在高濕度或高溫度之室外或其载體外& 環境而需要較高的抗熱可靠性時，其過剩的濕氣會$入偏 光鏡而使偏光鏡的性能劣化。在此情況下，必需檢杳使 於偏光鏡之保護層是否為低濕度滲透性和低濕度吸^ 透明薄膜，該偏光鏡使用含碘或雙色染料吸附其上之聚乙 烯醇（polyvinyl alcohol)薄膜做為其偏光元件^ 辟 為” P V A偏光元件"）（未審查之日本專利公 間柄 6-51117 、 7-77608和1卜142645)。 八 然而，由於PVA偏光元件為親水性，此偏光元件本身 :有極高的吸水性。士。果僅單純使用低产 上所述之保護薄膜 jPVA偏先兀件析出，故偏光鏡内部本身即位溫 變成處於高溫度高濕度的狀態，其結 匕Γ;;;”率(爾後簡稱為透射率)、偏光度、影 诼色凋# 4之改變置，故降低偏光鏡的 I明之概述 非「王。 第6頁 90133266.ptd 554182C: \ 2D-00DE \ 91-03 \ 90133266.ptd Page 5 554182 5. Description of the invention (2) The rear surface, so that the polarizing element is fixed between the pair of protective films. That is, the manufacturing method of the background art of this polarizer includes the following steps: dyeing a PVA film with a two-color iodine or a two-color dye to be adsorbed thereon; cross-linking the PVA film with a diborate, or the like; pVA Uniaxially orientation of the film (the steps of dyeing, cross-linking, and orientation do not need to be performed separately, that is, they can be performed simultaneously, and their order and special restrictions); drying the PVA film; And a protective film such as a TAC film. Because TAC film has high humidity permeability and humidity absorption rate, when high humidity or high temperature outdoors or outside its carrier & environment requires high thermal reliability, its excess moisture will be polarized Mirrors and degrades the performance of polarizers. In this case, it is necessary to check whether the protective layer of the polarizer is a low-moisture permeability and low-humidity absorbent transparent film. The polarizer uses a polyvinyl alcohol film containing iodine or a two-color dye adsorbed thereon. As its polarizing element ^ "PVA polarizing element" (unexamined Japanese patent public handles 6-51117, 7-77608, and 1142142645). However, because the PVA polarizing element is hydrophilic, this polarizing element By itself: there is a very high water absorption. Shi. The fruit is only precipitated by using the low-yield protective film jPVA as described above. Therefore, the internal polarizing lens itself becomes at a high temperature and high humidity, which results in a high temperature and humidity. ;; "rate (hereinafter referred to as transmittance), polarization, and shade # 4, so the overview of reducing the brightness of polarizers is not" King. "Page 6 90133266.ptd 554182

本發明之目的為解決上述背景技術中所說明之問題，以 及提供一使用PVA偏光元件之偏光鏡，其在高溫度或高濕 度的環境下即使使用低濕度滲透性之保護薄膜亦具有極佳 的可靠性。以一PVA偏光元件以及一對層疊於偏光元件相 反邊之透明保護薄膜做為保護該偏光元件之薄膜而言，根 據組成該偏光鏡之PV A偏光元件的濕度以及保護薄膜之濕 氣滲透性的測量結果，本發明之發明人發現，在儘量降低 PVA偏光元件之濕度的情況下，當以低濕度滲透性之保護 薄膜黏著於PVA偏光元件之相反表面時，該偏光鏡具有極The purpose of the present invention is to solve the problems described in the above background art, and to provide a polarizer using a PVA polarizing element, which has excellent performance even in a high-temperature or high-humidity environment even if a protective film with low humidity permeability is used. reliability. A PVA polarizing element and a pair of transparent protective films laminated on opposite sides of the polarizing element are used as the film to protect the polarizing element. According to the humidity of the PV A polarizing element constituting the polarizer and the moisture permeability of the protective film, As a result of the measurement, the inventors of the present invention have found that when the humidity of the PVA polarizer is reduced as much as possible, when a protective film with low humidity permeability is adhered to the opposite surface of the PVA polarizer, the polarizer has extremely high polarities.

高之可靠性和極佳之耐久性。因此，發明人已可達到本發 明之要求。 X 亦即，根據本發明之偏光鏡以及該偏光鏡的製造方法如 下。 (1) 一偏光鏡至少由一聚乙烯醇偏光元件、以及固定偏 光元件於其間之兩層保護薄膜所組成，其中該偏光鏡的濕 度不超過以重量計3%。 (2 )第（1)項所定義之偏光鏡中，個別保護薄膜之濕度滲 透性在40 °C X 90%R· H·之環境下以從5至300 (g/cm2 · 24小 時）之犯圍内較佳。 (3 )第（2 )項所定義之偏光鏡中，其個別之保護薄膜以選 自含聚酯樹脂、聚醯亞胺樹脂（p〇lyimide resin)、去曱箱 樹脂（norbornene resin)、以及聚烯烴樹脂（p〇iyolefin resin)之族群的樹脂所製成較佳。 (4) 一種製造偏光鏡的方法，其包括在聚乙烯醇偏光元High reliability and excellent durability. Therefore, the inventors have been able to meet the requirements of the present invention. X. That is, the polarizer according to the present invention and the method for manufacturing the polarizer are as follows. (1) A polarizer is composed of at least a polyvinyl alcohol polarizer and two protective films fixed between the polarizer, and the humidity of the polarizer does not exceed 3% by weight. (2) In the polarizer as defined in item (1), the humidity permeability of the individual protective films is in the range of 5 to 300 (g / cm2 · 24 hours) under the environment of 40 ° CX 90% R · H · Inside is better. (3) In the polarizer defined in item (2), the individual protective films are selected from the group consisting of polyester resin, polyimide resin, norbornene resin, and Polyolefin resins are more preferred. (4) A method for manufacturing a polarizer, comprising

554182 五、發明說明（4) 件之相反邊黏上兩層保護薄膜而使聚乙烯醇偏光元件被 定於兩層保護薄膜之間，其中調整該聚乙烯醇偏光元件之 濕度使其不超過以重量計15%之情況下黏上該兩層保護 膜0 (5) —種製造第（4)項所定義之偏光鏡的方法，其個別保 護薄膜之濕度滲透性在40 °C X 90%R· η·之環境丁以從5至” 3 0 0 (g / c m2 · 2 4小時）之範圍内較佳。 (6 ) —種製造第（5 )項所定義之偏光鏡的方法，其個別之 保護薄膜以選自含聚醋樹脂、聚醯亞胺樹脂、去曱箱樹 脂、以及聚烯烴樹脂之樹脂所製成較佳。 從下述較佳具體例配合附圖之詳細說明中可證實本發明 之特性和優點。 較佳具體例之詳細說明 如圖1所示，根據本發明之偏光鏡丨基本上的組成為：吸 收含填或雙色染料於其上之聚乙烯醇（PVA)所製成的偏光 元件2 ;以及一對透明保護薄膜3，其以例如聚乙烯醇聚合 物或其類似物製成之適合的黏著層黏著於偏光元件相反之 兩邊，而使此一對透明保護薄膜做為保護偏光元件之薄 膜。，、 根據本發明，在偏光鏡中至少由PVA偏光元件以及一對 固定PVA偏光元件於其間之保護薄膜所組成，偏光鏡之濕 度必需不超過以重量計3%(以重量計百分比之濕度爾後簡 稱為百分比濕度）。為了使偏光鏡有較佳之耐久性，其濕 度以不超過1 %較佳。如果偏光鏡之溽度超過3%，而在高溫554182 V. Description of the invention (4) Two layers of protective film are adhered on the opposite sides of the piece so that the polyvinyl alcohol polarizing element is positioned between the two protective films, wherein the humidity of the polyvinyl alcohol polarizing element is adjusted so as not to exceed At 15% by weight, the two protective films are adhered. 0 (5) — A method of manufacturing the polarizer as defined in item (4). The humidity permeability of the individual protective films is 40 ° CX 90% R · The environment of η · is preferably in the range from 5 to "3 0 0 (g / c m2 · 24 hours). (6) — a method of manufacturing a polarizer as defined in item (5), each of which The protective film is preferably made of a resin selected from the group consisting of a polyacetate resin, a polyimide resin, a deaerator resin, and a polyolefin resin. It can be confirmed from the detailed description of the following preferred specific examples and the accompanying drawings The characteristics and advantages of the present invention. A detailed description of a preferred specific example is shown in Fig. 1. The basic composition of a polarizer according to the present invention is: a polyvinyl alcohol (PVA) which absorbs filled or dichroic dyes thereon. And a pair of transparent protective films 3 made of, for example, polyethylene A suitable adhesive layer made of a polymer or the like is adhered to the opposite sides of the polarizing element, so that the pair of transparent protective films is used as a film for protecting the polarizing element. According to the present invention, in the polarizer, at least PVA The polarizing element and a pair of protective films fixing the PVA polarizing element in between, the humidity of the polarizer must not exceed 3% by weight (the percentage of humidity by weight is hereinafter referred to as the percentage humidity). In order to make the polarizer better, Durability, its humidity is preferably not more than 1%. If the polarizer's degree exceeds 3%, but at high temperature

554182554182

度或高濕度的環境下，其會增加透射率的改變量、偏光产 的改變量或影像色調的改變量，故偏光鏡無法獲得優良： 财久性。 根據本發明之偏光鏡，亦即，至少由pVA偏光元件以及 ;ί:: 偏光元件於其間之保護薄膜所組成之偏光鏡 之製造方法為，在調整該PVA偏光元件之濕度不超過15%之 狀況下於PVA偏光元件之相反兩邊黏上一對保護薄膜。 整該PVA偏光元件之濕度使其不超過5%之狀況下於偏光 70件之相反兩邊黏上一對保護薄膜時該偏光鏡可有較佳之 耐久性。附帶說明，如果該pVA偏光元件之濕度超過15%之 狀況下於PVA偏光元件之相反兩邊黏上一對保護薄膜時， 將不易調整偏光鏡之濕度使其不超過3%以上，更不 濕度使其不超過1 %以上。 附帶說明，根據本發明之偏光鏡的製造方法，例如包括 下列之步驟··將PVA薄膜染上雙色碘或雙色染料使吸附其 上，以硼酸、二硼酸鹽、或其類似物交聯該pvA薄膜；PM 薄膜之單轴定向（其染色、交聯和定向之步驟不需分開進 行，亦即可同時進行，並且其進行之順序無特殊之限 制）；乾燥該PVA薄膜；以及將PVA薄膜黏上保護薄膜。 製造此類聚乙烯醇薄膜的方法包括下列步驟：澆鑄溶於 水或有機溶劑内之聚乙稀醇的原溶液而形成一薄膜；在浴 池内定向（濕式定向）該薄膜；以碘或例如偶氮染料、蔥醌 染料（anthraquinone dye)、四啡染料（tetrazine dye)、 或其類似物之雙色染料將該薄膜染色；然後，以硼化合物Under high-temperature or high-humidity environment, it will increase the amount of change in transmittance, the amount of change in polarized light production, or the amount of change in color tone of the image, so the polarizer cannot obtain excellent: financial longevity. The manufacturing method of the polarizer according to the present invention, that is, at least a pVA polarizer and a polarizer composed of a protective film between the polarizer and the polarizer, is to adjust the humidity of the PVA polarizer to not exceed 15%. At the same time, a pair of protective films are stuck on the opposite sides of the PVA polarizer. When the humidity of the PVA polarizing element is adjusted so that it does not exceed 5%, the polarizing lens can have better durability when a pair of protective films are stuck on opposite sides of 70 polarized pieces. Incidentally, if the humidity of the pVA polarizing element exceeds 15%, when a pair of protective films are stuck on the opposite sides of the PVA polarizing element, it will be difficult to adjust the humidity of the polarizer to not exceed 3%, let alone the humidity It does not exceed 1%. Incidentally, the method for manufacturing a polarizer according to the present invention includes, for example, the following steps: dyeing a PVA film with a two-color iodine or a two-color dye to adsorb it, and crosslinking the pvA with boric acid, diborate, or the like Films; uniaxial orientation of PM films (the steps of dyeing, crosslinking, and orientation do not need to be performed separately, but can be performed simultaneously, and the order of their execution is not particularly limited); drying the PVA film; and adhering the PVA film Protective film. The method for manufacturing such a polyvinyl alcohol film includes the following steps: casting a raw solution of polyvinyl alcohol dissolved in water or an organic solvent to form a film; orienting (wet orientation) the film in a bath; A nitrogen dye, anthraquinone dye, tetrazine dye, or the like, a two-color dye; the film is then dyed with a boron compound.

C:\2D-00DE\9卜03\90133266.ptd 第9頁 554182 五、發明說明（6) 處理該薄膜。在此方法中，定向之步驟可在染色前或後進 行或可在染色時同時進行。做為製備原溶液之溶劑的實例 包括：水；二曱亞砜（dimethyl Sulf〇xide) ; N_甲基吡咯 啶酮（N-methyl pyr〇lid〇ne);甘油；多元醇（p〇lyhydric alcohol)例如乙二醇、丙二醇、二甘 glycol)、三甘醇、四甘醇、三經甲基丙烧 (trimethylolpropane)等；胺類例如伸乙二胺 (ethylenediamine)、伸二乙三胺等；以及上述之混合 物。該薄膜之單軸定向以3.5次或以上較佳，以4 5次或以 上更佳。在此情況時，該薄膜以上述方向之垂直方向可進 一步定向（至避免寬度收縮之角度或較其更大之角度）。定 向時之適當溫度為30至130 t之範圍内。附帶說明^上述 為典型濕式定向之貫例，但是，聚乙烯醇薄膜之定向並不 僅侷限於此方法。例如，其可使用任何其它例如乾式定向 之適合的定向方法’其薄膜之定向為在浸入潮濕浴池之 前0 以雙色染料或峨之溥膜染色’亦即，使薄膜接觸含雙色 染色劑或碘之液體而吸收該雙色染劑或碘。通常，使用磁 -碘化鉀水溶液或例如偶氮染料、蔥醌染料、四哨：染料、 或其類似物之雙色染料水溶液。碘的適當濃度為從〇 j至 2·〇 g/Ι。碘化鉀的適當濃度為從1〇至50 g/1。碘和蛾化 鉀之適當重量比為從20至1〇〇。雙色染料之適當濃度為從 〇· 1至3· 0 g/Ι。實際之染色時間為從約30至約5〇〇 $。 調整上述偏光元件之濕度使其在所述之小範圍内V的方法C: \ 2D-00DE \ 9 卜 03 \ 90133266.ptd Page 9 554182 5. Description of the invention (6) Process the film. In this method, the step of orienting may be performed before or after the dyeing or may be performed simultaneously during the dyeing. Examples of the solvent used to prepare the original solution include: water; dimethyl Sulfoxide; N-methylpyrrolidone; glycerol; polyhydric alcohol alcohol) such as ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, trimethylolpropane, etc .; amines such as ethylenediamine, ethylenediamine, etc .; And mixtures of the above. The uniaxial orientation of the film is preferably 3.5 times or more, and more preferably 45 times or more. In this case, the film can be further oriented in a direction perpendicular to the above-mentioned direction (to an angle to avoid width shrinkage or an angle larger than it). The proper temperature during orientation is in the range of 30 to 130 t. Incidentally, the above is a conventional example of typical wet orientation, however, the orientation of polyvinyl alcohol film is not limited to this method. For example, it can use any other suitable orientation method, such as dry orientation, 'the orientation of the film is to be dyed with a two-color dye or Enamel film before immersion in a wet bath', that is, the film is contacted with a two-color dye or iodine The liquid absorbs the two-color dye or iodine. Generally, an aqueous magnetic-potassium iodide solution or a two-color dye aqueous solution such as an azo dye, an onion quinone dye, a four-while dye, or the like is used. A suitable concentration of iodine is from 0 j to 2.0 g / 1. A suitable concentration of potassium iodide is from 10 to 50 g / 1. A suitable weight ratio of iodine and potassium moth is from 20 to 100. A suitable concentration of the dichroic dye is from 0.1 to 3.0 g / 1. The actual staining time is from about 30 to about 500 $. Method for adjusting the humidity of the above-mentioned polarizing element so that it is within the small range V

C:\2D-C0DE\91-03\90133266.ptd 第10頁 五、發明說明⑺ __ 並無特殊的限制， (ο儘量提高乾掉";;^，_可使用例如下述之方法。 殊之限制，但是，、光70件之溫度。其乾燥溫度並無特 C之範圍内。 例如’其乾燥溫度可設定在從3 0 °C至8 0 (2 )儘里增長乾燥 甘弘p 士 殊之限制，但是，几几仟之時間。其乾燥時間並無特 1小時之範圍内。列如，其乾燥時間可設定在從1 0分鐘至 (3)偏光元件一曰— 小時至24小時之彳纟一 \成並在從20 t至50 °C之溫度下乾燥1 m 之後，再黏上保護薄膜。 (4 )以乾式定向製造- 〇C之加埶⑺^， 偏先兀件。（例如，在70 °C至1 50 後4以：：乂至5次乾式定向其聚乙烯醇薄膜，然 色的方法製造該偏光薄膜）。 可;制湛々的=ΐ度之偏光元件時，在加熱可靠性測試中 其-果i = ί而避免偏光鏡内部轉換成高濕度環境。 丹、〜果為，可改善偏光鏡之加熱耐久性。 由於個別之透明保護薄膜將PVA偏光元件固定於1中， ^使用具有極佳透明度、機械特性、熱穩定性以及濃度 二透性在MCx 90%R.H·之環境下為5至3〇〇(g/cm2 .24小 C <保護薄膜較佳。透明保護薄膜之濕度滲透性在4〇 ^ 1 9 0%R. H.之環境下不低於5(g/cm2 · 24小時）時，可使偏 光鏡之偏光元件不會有殘留濕氣而導致光學耐久性劣化的 問題。以利用其濕度滲透性在40 t χ 9〇%R. H.之環境下不 高於300(g/cm2 ·24小時）之薄臈較佳，其可避免偏光鏡因 從周圍大氣滲入濕氣而導致光學耐久性的降低。 C:\2D-C0DE\91-03\90133266.ptd 第11頁 554182 五、發明說明（8) 保護薄膜典型的實例包括聚酯樹脂、聚醯亞胺樹脂、去 曱徭樹脂、聚烯烴樹脂或其類似物之薄膜。 聚酯樹脂之實例包括：聚對欧酸乙稀酯（ρ ο 1 y e t h y 1 e n e terephthalate);聚萘酸乙烯醋（polyethylene naphthalate);聚對酞酸丁烯酯；聚對酞酸乙烯酯-異酞 酸酯聚合物等。聚醯亞胺樹脂之實例包括：在芳族羧酸酐 和例如苯均四酸二 if(pyromellitic dianhydride)和二胺 基二苯醚（di am inodi phenyl ether)之芳族雙胺染料 (aromatic diamine)之間以縮合反應、醯亞胺環閉合反應 或其類似反應所製造之樹脂；其它之聚醯亞胺得自順丁稀 二酐（maleic anhydride)和例如二胺二苯曱烧 (diaminodipheny lmethane)之芳族雙胺染料;等等〇去甲 也樹脂之實例包括：（a )在例如添加順丁烯二酸、添加環 戊二烯（cyclopentadiene)使其變性而藉氫化一去曱花單 體之（共）聚合物的開環（ring-opened)而得之樹脂；（b)藉 去甲葙單體之加聚作用（addition polymerization)而得 之樹脂；（c )藉去曱箱單體和例如乙稀或-烯烴之稀烴單 體（olefin monomer)的加聚作用而得之樹脂；（d)藉去甲;g 單體和例如環戊烯環辛烧（cyclopentenem cyclooctene) 或5, 6 -二氫二環戊間二烯（5, 6- dihydrodicyclopentadiene)之環烯烴單體的加聚作用而 付之樹脂，荨專。聚稀煙樹脂之實例包括：α ~烯烴之均 聚物（homopolymer)或共聚物，例如具有1至6個碳原子之 聚乙烯、聚異丙烯、乙烯-異丙稀共聚物或聚一 4-甲基戊稀C: \ 2D-C0DE \ 91-03 \ 90133266.ptd Page 10 V. Description of the invention _ _ There are no special restrictions. (Ο Try to kill as much as possible "; ^, _ can use the following methods, for example. The limit is, however, the temperature of 70 pieces of light. The drying temperature is not in the range of special C. For example, 'the drying temperature can be set from 30 ° C to 80 (2) as much as possible to increase drying Gan Hong p Shi However, the drying time is not in the range of 1 hour. For example, the drying time can be set from 10 minutes to (3) polarizing element—hour to 24 hours After it was finished and dried for 1 m at a temperature from 20 t to 50 ° C, the protective film was adhered. (4) Manufactured by dry orientation-〇C plus ^, partial components. (For example, after 70 ° C to 1 50, 4: dry-orientate its polyvinyl alcohol film by: 乂 to 5 times, and then make the polarizing film.) Yes; when making a polarizing element of Zhan々 = ΐ degree In the heating reliability test, its-fruit i = ί to avoid the internal conversion of the polarizer into a high humidity environment. Dan, ~ fruit, can improve the heating durability of the polarizer As the PVA polarizing element is fixed in 1 by a separate transparent protective film, it has excellent transparency, mechanical properties, thermal stability, and concentration dialysis. It is 5 to 300% in an environment of MCx 90% RH ·. g / cm2 .24 small C < protective film is preferred. The humidity permeability of the transparent protective film is not less than 5 (g / cm2 · 24 hours) under the environment of 40% 190% RH, which can polarize light The polarizing element of the mirror does not have the problem of deterioration of optical durability due to residual moisture. In order to take advantage of its humidity permeability, it is not more than 300 (g / cm2 · 24 hours) in a 40 t χ 90% RH environment.臈 is better, it can avoid the reduction of the optical durability of the polarizer due to the infiltration of moisture from the surrounding atmosphere. C: \ 2D-C0DE \ 91-03 \ 90133266.ptd Page 11 554182 5. Description of the invention (8) Protection Typical examples of the film include films of polyester resins, polyimide resins, defluorinated resins, polyolefin resins, or the like. Examples of polyester resins include: polyethylene terephthalate (ρ ο 1 yethy 1 ene terephthalate); polyethylene naphthalate; polybutylene terephthalate Polyethylene terephthalate-isophthalate polymers, etc. Examples of polyfluorene imine resins include: aromatic carboxylic anhydrides and, for example, pyromellitic dianhydride and diamine diphenyl ether (di am inodi phenyl ether) aromatic diamine dyes (aromatic diamine) resins produced by condensation reaction, fluorene imine ring closure reaction or similar reactions; other polyfluorene imine obtained from maleic anhydride maleic anhydride) and aromatic bisamine dyes such as diaminodipheny lmethane; etc. Examples of nordic resins include: (a) adding, for example, maleic acid, adding cyclopentadiene (Cyclopentadiene) a resin obtained by denaturing and ring-opening a (co) polymer obtained by hydrogenating a decapinized monomer; (b) addition polymerization by a demethylated monomer ); (C) Resin obtained by addition polymerization of a box monomer and an olefin monomer such as ethylene or -olefin; (d) Borrow; g monomer And for example cyclopentenem cyclooctene or 5, 6-dihydro Polyaddition cyclopentadiene (5, 6- dihydrodicyclopentadiene) of the cycloolefin monomer and paid resin, Qian specifically. Examples of polysmoky resins include: homopolymers or copolymers of alpha to olefins, such as polyethylene, polyisopropylene, ethylene-isopropyl copolymer, or poly (4-isocyanate) having 1 to 6 carbon atoms Methylpentane

554182 五、發明說明（9) 一 1 等等 在維持本發明之特質下，各別之透明保護薄膜可進行硬 ^處理、抗反射處理或進行防黏、防漫射、防眩處理， 等。例如，硬包覆處理之目的為避免偏光鏡之表面受到 ί員傷。例如，使用有絕佳硬度、平滑度等之硬化包覆薄膜 猎加入例如矽氧樹脂之適合紫外線_可硬化樹脂於保護薄 膜上而形成於該透明保護薄膜上。 另一方面’抗反射處理之目的為避免外界之光線反射在 · ，光鏡之表面上。此抗反射處理可根據背景技術而形成一 抗反射薄膜。此外，防黏處理之目的為避免保護薄膜和鄰拳 近，過度的黏著。防眩處理之目的為避免穿透偏光鏡之光 的此見度被反射於偏光鏡表面上之外界光線所干擾。此防 眩處理可藉，例如使透明保護薄膜之表面藉例如利用喷 妙、壓紋、或其類似方法使表面粗糙化之系統而呈細緻不 規則構造，或利用透明顆粒混合系統製造。 上述透明細顆粒的實例包括以矽石、氧化鋁、鈦、氧化 結（zirconia)、氧化錫、氧化銦（in(jiuin 〇xide)、一氧化 鑛i(cadmium oxide)、氧化録（antimony oxide)等所製成 之平均粒控為〇 · 5至2 0微米的顆粒。亦可使用可導電之無 機細顆粒做為其透明細顆粒。其它可使用交聯或非交聯顆 鲁 粒聚合物等製成之有機細顆粒做為其透明細顆粒。透明細 顆粒的使用量以重量計1 〇〇份之透明樹脂之下通常在以重 量計2至7 0份的範圍内，以重量計在5至5 〇份的範圍更佳。 ’ 透明保護薄膜本身可使用含透明細顆粒之防眩層所製 、554182 V. Description of the invention (9)-1 etc. While maintaining the characteristics of the present invention, each of the transparent protective films can be subjected to hard treatment, anti-reflection treatment, or anti-adhesion, anti-diffusion, anti-glare treatment, etc. For example, the purpose of the hard coating process is to prevent injuries to the surface of the polarizer. For example, a hardened coating film having excellent hardness, smoothness, etc. is added to the transparent protective film by adding a suitable UV-curable resin such as silicone resin to the protective film. On the other hand, the purpose of the anti-reflection treatment is to prevent external light from reflecting on the surface of the light mirror. This anti-reflection treatment can form an anti-reflection film according to the background art. In addition, the purpose of the anti-adhesive treatment is to avoid the excessive adhesion of the protective film and the adjacent boxer. The purpose of the anti-glare treatment is to prevent the visibility of the light penetrating the polarizer from being disturbed by the external light reflected on the surface of the polarizer. This anti-glare treatment can be made, for example, by using a system of roughening, embossing, or the like to roughen the surface of the transparent protective film to have a fine irregular structure, or by using a transparent particle mixing system. Examples of the above-mentioned transparent fine particles include silica, alumina, titanium, zirconia, tin oxide, indium oxide (jiuin oxide), cadmium oxide i, antimony oxide The average particle size of the particles is 0.5 to 20 microns. Conductive inorganic fine particles can also be used as transparent fine particles. Others can use cross-linked or non-cross-linked particle polymers. The organic fine particles are made into transparent fine particles. The amount of transparent fine particles used is generally 1000 to 100 parts by weight of the transparent resin, and it is usually in the range of 2 to 70 parts by weight, and 5 parts by weight. The range is more preferably 50 parts. '' The transparent protective film itself can be made with an anti-glare layer containing transparent fine particles,

554182554182

當PV A偏光元件分別黏上保護薄膜 膠黏劑。&改變偏光鏡之濕度和特性了使”著劑或 劑或膠黏劑以含少量之揮發性角：：；於其：著 膠黏劑之特定的實例包乙;溫處理。黏著劑或 酸#黏#丨.亨π s L f · 醇（PVA)黏著劑；丙烯 心 黏著劑；以例如删酸、二硼酸 :望 ΐ 二Ϊ rariC aldehyde)、三聚氰胺（託1amine) Ϊί 烯醇聚合物的水溶***聯劑製成的黏著劑； 寺#。 附帶說明，偏光元件的厚度並無特殊的限制，但是，通 常偏光鏡的厚度以從約15至約30微米較佳。個別保護薄膜 的厚度以從8 0至2 5微米之範圍内較佳，以從約6 〇至約2 5微 米之範圍内更佳。When the PV A polarizing element is attached with a protective film adhesive, respectively. & Change the humidity and characteristics of the polarizer so that the "adhesive or agent or adhesive with a small amount of volatile angle ::; in it: specific examples of adhesives include B; warm treatment. Adhesives or酸 # 粘 # 丨. Henry π s L f · Alcohol (PVA) adhesive; acrylic core adhesive; for example, delete acid, diboronic acid: ΐ ri rariC aldehyde), melamine (1amine) Ϊ ene polymer Si #. Incidentally, the thickness of the polarizing element is not particularly limited, but usually the thickness of the polarizer is from about 15 to about 30 microns. The thickness of individual protective films It is preferably within a range from 80 to 25 microns, and more preferably within a range from approximately 60 to approximately 25 microns.

偏光鏡可進一步如上述加添一層膠黏劑層或剝離薄膜。 根據下列之貫施例可更精確地說明本發明之特殊性。然 而，本發明並非僅侷限於下述特定之實施例。 實施例1 經由導輥（guide rol Is)連續攜帶由Kuraray有限公司製The polarizer may further include an adhesive layer or a release film as described above. The specific features of the present invention can be explained more precisely according to the following examples. However, the present invention is not limited to the specific embodiments described below. Example 1 Continuously carried by a guide roller (guide rol Is) manufactured by Kuraray Co., Ltd.

C:\2D-OODE\91-03\90133266.ptd 第U頁 554182 五、發明說明（11) =7=米厚的長條狀聚乙稀醇薄膜（9p75R)，將聚乙稀 畴薄膜次入峨和峨化益甲、人札 處理以及2.5-折：定匕;物=色浴池(3〇C)進行染色 過定向严挪夺六祕忐 然後，將此聚乙烯醇薄膜經 β P处Π父葬處理而以含碘化鉀之硼酸的酸浴（6 〇 °c ) 内，共定向5次。將獲得約3〇微米厚 ) ⑽内乾燥30分鐘。而得到含4.9%濕度二件光在元 y ^ ^ :將做為黏著層之黏著劑施予1 00微米厚之去曱 勒知U曰，膜上（JSR公司製造，商品名為，，ART〇N”）以做為其 f ^ ^PVA Ιέ ^ #i ^ ^ ^ αΡΥΑ Ιέ ¥ #J ^ ^ 此偏光鏡之製造。 儿成 所獲得之偏光鏡的特性列於表j。 實施例2 二Ή 2中除了以和貫施例！中相同之方法將獲得約3 〇微 >、子之碘-pVA偏光元件在5〇。〇之下乾燥1〇分鐘而得到含7 5/0濕度的偏光元件之外其餘均和實施例1之方法相同。. 所獲彳于之偏光鏡的特性列於表1。 f施例^ 、 將和實施例1中相同之方法所製得之約30微米厚之碘 偏光元件在5〇。〇之乾燥箱内乾燥5分鐘。因此，可得 丄各10· 〇%濕度的偏光元件。然後，除了將5〇微米厚之聚 =S文酯薄膜（Kaneka公司製造之碳酸酯薄膜） 薄膜之外，其餘均和實施例i之方法相同。 所獲得之偏光鏡的特性列於表1。C: \ 2D-OODE \ 91-03 \ 90133266.ptd Page U 554182 V. Description of the invention (11) = 7 = meter-thick strip-shaped polyethylene film (9p75R). Into E and Ehua Yijia, Renzha treatment and 2.5-fold: fixed dagger; object = color bath (30 ° C) was dyed, and the six secret pimple were seized. Then, this polyvinyl alcohol film was subjected to β P In the treatment of the parent funeral and using potassium iodide-containing boric acid in an acid bath (60 ° C), a total of 5 orientations were performed. About 30 micrometers thick will be obtained) and dried within 30 minutes. Two pieces of light with a humidity of 4.9% were obtained. ^^: The adhesive as the adhesive layer was applied to a thickness of 100 micrometers. Let me know U said, on the film (made by JSR Corporation, trade name, ART 〇N ”) as f ^ ^ PVA Ιέ ^ #i ^ ^ ^ αΡΥΑ Ιέ ¥ #J ^ ^ The manufacture of this polarizer is shown in Table j. Example 2 Second Except that in Example 2, the same method as in Example 2 will be used to obtain about 30 micrometers. The iodine-pVA polarizing element is dried at 50 ° C for 10 minutes to obtain 7 5/0 humidity. Except for the polarizing element, the method is the same as that of Example 1. The characteristics of the obtained polarizer are shown in Table 1. fExample ^, about 30 microns obtained by the same method as in Example 1. The thick iodine polarizing element was dried in a 50 ° C drying oven for 5 minutes. Therefore, polarizing elements each having a humidity of 10% were obtained. Then, in addition to a 50 micron thick poly = S-ester film (Kaneka Except for the carbonate film made by the company), the rest are the same as the method of Example i. The characteristics of the obtained polarizer are shown in Table 1.

554182 五、發明說明（12) 比較實施例1 將和實施例1中相同之方法所製得之約3〇微米厚之破 -PVA偏光元件在25 °C之乾燥箱内乾燥2分鐘。因此，可得 到含1 9 · 5 %濕度的偏光元件。然後，將§ 〇微米厚之τ a c (三 醋酸纖維素）薄膜固定於偏光元件之相反表面以做為保^ 薄膜’並且將PVA黏著劑滴於薄膜之間而使偏光鏡黏著於 TAC薄膜。因此，而完成此偏光鏡之製造。 所獲得之偏光鏡的特性列於表1。 比較實施你丨2 以和實施例1中相同之方法製得含4· 9%濕度的偏光元 件。然後，以PVA(聚乙烯醇）黏著劑做為黏著層將其黏在 80微米厚之TAC(三醋酸纖維素）薄膜上以做為保護薄膜。 然後:使PVA黏著劑乾燥並經由PVA黏著劑將TAC薄膜黏在 偏光元件之相反表面。因此，而完成此偏光鏡之製造。 所獲得之偏光鏡的特性列於表1。 上匕較實施你丨3 以和比較實施例1中相同之方法製得除了偏光元件含 1 9· 5%濕度之外和實施例J中相同之方法所得到的偏光鏡。 所獲得之偏光鏡的特性列於表1。 一下列為從實施例1至3以及比較實施例丨至3所得到之偏光 元件和偏光鏡之特性的比較。 (測量保護薄膜之濕度滲透性的方法） 14{rc/90%R.H(R.H ··相對濕度）之環境下根據JIS ζ 0208之方法測量個別保護薄膜的濕度滲透性。 第16頁 C:\2D-O0DE\9l.03\90133266.ptd 554182 五、發明說明（13) (濕度的測量） 偏光元件的濕度： 一在保護薄膜即將黏著於偏光元件之前切開一部分之偏光 兀件（樣本尺寸為1 Ο X 30毫米）。為了避免受到大氣濕氣之 影響’應立刻將偏光元件樣本置入附有調整至15()。〇之 Karl Fischer濕度計的加熱燃燒室内，並且氮氣以2〇〇毫 升/分之速率流入該燃燒室。氮氣之氣泡進入Karl F i scher濕度計内之滴定槽（t丨trat丨〇n ce 1 1 )溶液内而因 此測量該偏光元件之濕度。554182 V. Description of the invention (12) Comparative Example 1 A 30-micron-thick broken-PVA polarizer made by the same method as in Example 1 was dried in a drying box at 25 ° C for 2 minutes. Therefore, a polarizing element having a humidity of 19 · 5% can be obtained. Then, a τ ac (tricellulose acetate) film with a thickness of 0 micron is fixed on the opposite surface of the polarizing element as a protection film, and a PVA adhesive is dropped between the films to make the polarizer adhere to the TAC film. Therefore, the manufacture of the polarizer is completed. The characteristics of the obtained polarizers are shown in Table 1. Comparative implementation 2 A polarizing element containing 4.9% humidity was prepared in the same manner as in Example 1. Then, a PVA (polyvinyl alcohol) adhesive was used as an adhesive layer and it was adhered to a 80 micron thick TAC (cellulose triacetate) film as a protective film. Then: dry the PVA adhesive and adhere the TAC film to the opposite surface of the polarizing element via the PVA adhesive. Therefore, the manufacture of the polarizer is completed. The characteristics of the obtained polarizers are shown in Table 1. The above method was performed in the same manner as in Comparative Example 1 to obtain a polarizer obtained in the same manner as in Example J except that the polarizing element contained 19.5% humidity. The characteristics of the obtained polarizers are shown in Table 1. The following is a comparison of the characteristics of polarizing elements and polarizers obtained from Examples 1 to 3 and Comparative Examples 1 to 3. (Method for measuring the humidity permeability of a protective film) The humidity permeability of an individual protective film is measured in an environment of 14 {rc / 90% R.H (R.H .. Relative humidity) in accordance with the method of JIS ζ 0208. Page 16 C: \ 2D-O0DE \ 9l.03 \ 90133266.ptd 554182 V. Description of the invention (13) (Measurement of humidity) Humidity of polarizing element: One part of the polarizing light is cut before the protective film is about to adhere to the polarizing element. Pieces (sample size is 10 × 30 mm). In order to avoid being affected by atmospheric humidity ’, the polarizing element sample should be adjusted to 15 () immediately. The Karl Fischer hygrometer heated the combustion chamber, and nitrogen flowed into the combustion chamber at a rate of 2000 ml / min. The bubble of nitrogen gas enters the solution of the titration tank (t 丨 tran 丨 ce 1 1) in the Karl Fischer hygrometer, and thus the humidity of the polarizing element is measured.

偏光鏡之濕度： 將製造之偏光鏡切成1 〇 x 3 〇毫米之尺寸。切割後之偏光 鏡被置於35 °C/80%R. Η之環境下48小時，以測量偏光元件 相同之方法測量偏光鏡的濕度。 (财熱性試驗） 將偏光鏡切成2 5 X 5 0毫米之尺寸。將切割後之偏光鏡以 丙稀酸膠黏劑黏在載玻片上。在測量偏光鏡之光學特性 (初步光學特性）之後，將附有偏光鏡之載玻片置入9〇。〇的 乾燥箱内。在附有偏光鏡之載玻片置於乾燥箱内達一預定Humidity of polarizer: The manufactured polarizer was cut into a size of 10 x 300 mm. The cut polarizer was placed in an environment of 35 ° C / 80% R. For 48 hours. The humidity of the polarizer was measured in the same way as the polarizer. (Financial performance test) The polarizer was cut into a size of 25 x 50 mm. The cut polarizer was adhered to the glass slide with acrylic adhesive. After measuring the optical characteristics (preliminary optical characteristics) of the polarizer, the slide with the polarizer attached was placed at 90. 〇 in a dry box. Place the slide with the polarizer in a dry box for a predetermined time

時間之後’測量該偏光鏡之光學特性（測試之後的光學特 性）。 (防潮性能試驗） 將偏光鏡切成2 5 X 5 0毫米之尺寸。將切割後之偏光鏡以 丙烯酸膠黏劑黏在載玻片上。在測量偏光鏡之光學特性 (初步光學特性）之後，將附有偏光鏡之載玻片置入6 〇After time ', the optical characteristics (optical characteristics after the test) of the polarizer were measured. (Moisture resistance test) Cut the polarizer to a size of 25 x 50 mm. The cut polarizer was attached to a glass slide with an acrylic adhesive. After measuring the optical characteristics of the polarizer (preliminary optical characteristics), place the glass slide with the polarizer in place.

554182 五、發明說明（14) --- --- /95%R· Η的乾燥箱内。在附有偏光鏡之載玻片置於和上述 :件相同之乾燥箱内達一預定時間之後，測量該偏光鏡之 光學特性（測試之後的光學特性）。 (光學特性的測量） 光線透射率的改變量·· 、根據J IS Ζ-870 1測量光線之透射率（爾後僅稱為透射率） 以校正其發光效率（luminous efficiency)。 以下列方法計算其透射率之改變量。 表示式1 : 透射率改變量=測試後的透射率-最初的透射率 偏光度： 以下列表示式計算其偏光度·· 表示式2 : 偏光度=+ //90)]>1〇〇 (%) 其中札為平行透射率，以及h9()為垂直透射率。 表不式3 · 偏光度的改變量=測試後的偏光度-最初的偏光度 色調益和色調公： 根據JIS Z-870 1測量色調旦和色調办以校正其發光效 以下列方法計算其色調的改變量。 > ^。 表示式4 : 色調§的改變量=測試後的色調§ -最初的色調a 色調公的改變量=測試後的色調公-最初的色調b 其結果列於表1。 —554182 V. Description of the invention (14) --- --- / 95% R · 内 in the drying box. After the glass slide with the polarizer was placed in the same dry box as the above for a predetermined time, the optical characteristics of the polarizer (optical characteristics after the test) were measured. (Measurement of optical characteristics) Amount of change in light transmittance.. According to J IS ZO-870 1, the transmittance of light (hereinafter referred to as transmittance only) was measured to correct its luminous efficiency. The amount of change in transmittance was calculated in the following manner. Expression 1: Change in transmittance = transmittance after test-initial transmittance polarization: Calculate the polarization by the following expression ... Expression 2: Polarization = + // 90)]> 1〇〇 (%) Where Z is the parallel transmittance and h9 () is the vertical transmittance. Table 3 · The amount of change in the degree of polarization = the degree of polarization after the test-the initial degree of polarization and the color tone and the color tone: Measure the color tone and the color tone according to JIS Z-870 1 to correct its luminous efficiency. Calculate the color tone according to the following method The amount of change. > ^. Expression 4: Change amount of hue § = hue after test §-initial hue a Change of hue common = hue after test-initial hue b The results are shown in Table 1. —

554182 五、發明說明（15) 實施^ 1 實施W 2 _實施例^ 3 比較實施例 1 |比較實施例 2 比較實施例 3 偏光元件濕度 (%以重量計） 4.9 7.5 10 19.5 4.9 19.5 保護薄膜濕度滲透性 (g/m2 24h) 110 110 128 750 750 110 偏光鏡漁度 (%以重量計） 0.95 1.8 1.9 4 3.2 3.8 9〇°C耐熱性 試驗 透射率改變 1.0 1.0 0.9 0.8 0.8 3.1 偏光度改變 -1.0 -1.7 -1.2 -0.9 -1.0 -3.2~~ 色調改變 0.1 0.1 0.1 •0.2 -0.4 4.0 色調k改變 1.5 2.5 1.3 1.9 1.5 1.4— 60〇C/95%R.H 防潮性能試驗 透射率改變 2.1 2.2 1.8 3.8 3.3 2.8 偏光度改變 -0.3 -0.2 -0.1 -2.7 -2.4 -0.4 色調也改變 -0.4 -0.3 -0.5 -1.2 -1.2 -0.7 色調k改變 -0.5 -0.7 -0.3 -1.2 -1.9 -1.0 ......... ，丨主人，丨^，“同儿儿什1 1场元鏡，其具有 極佳之可罪性以及在高溫和高濕度的狀況下有極佳的耐久 性，以及提供製造此偏光鏡之方法。在本發明較佳之 ^中，在40 X 90%R. η.之環境下使用濕度滲透性從g至 300 (g/cm2 ·24小時）之保護薄膜做為 背景技術比較下可減少对久性之光學性質的n:在與 雖然本發明以某種程产上右1 4主^ ' 明，但是，必需瞭解，；發2:殊性；；佳型式做為說 偏離 圍 造可加以改變，並且其可結合的細部構 本發明所附專利中請範圍之精神 置/、匕零件而不 元件編號說明 祀 偏光鏡 第19頁 C:\2D-G0DE\91-03\90133266.ptd 554182 五、發明說明（16) 2 偏光元件 3 保護薄膜 第20頁 C:\2D-C0DE\91-03\90133266.ptd 1111 554182 圖式簡單說明 圖1為根據本發明具體例之偏光鏡的剖面圖。 1111111 第21頁 C:\2D-CODE\91-03\90133266.ptd554182 V. Description of the invention (15) Implementation ^ 1 Implementation W 2 _ Example ^ 3 Comparative Example 1 | Comparative Example 2 Comparative Example 3 Humidity of polarizing element (% by weight) 4.9 7.5 10 19.5 4.9 19.5 Protective film humidity Permeability (g / m2 24h) 110 110 128 750 750 110 Polarization angle (% by weight) 0.95 1.8 1.9 4 3.2 3.8 9 ° C Heat resistance test Transmission change 1.0 1.0 0.9 0.8 0.8 3.1 Polarization change- 1.0 -1.7 -1.2 -0.9 -1.0 -3.2 ~~ Hue change 0.1 0.1 0.1 • 0.2 -0.4 4.0 Hue k change 1.5 2.5 1.3 1.9 1.5 1.4— 60 ° C / 95% RH Moisture resistance test Transmission change 2.1 2.2 1.8 3.8 3.3 2.8 Polarization change -0.3 -0.2 -0.1 -2.7 -2.4 -0.4 Hue also changes -0.4 -0.3 -0.5 -1.2 -1.2 -0.7 Hue k changes -0.5 -0.7 -0.3 -1.2 -1.9 -1.0 ... ..., 丨 Master, 丨 ^, "Tonger Ershi 1 1 field element mirror, which has excellent guilt and excellent durability under high temperature and high humidity conditions, and provides Method for manufacturing this polarizer. In the preferred embodiment of the present invention, the humidity is used from 40 to 90% R. A protective film of 300 (g / cm2 · 24 hours) can be used to reduce the long-term optical properties of n compared with the background technology. It must be understood that; hair 2: special ;; the best type is that the deviation from the surroundings can be changed, and the details of the combination can be combined with the spirit of the scope of the patent attached to the present invention. Polarizing lens for page 19 C: \ 2D-G0DE \ 91-03 \ 90133266.ptd 554182 V. Description of the invention (16) 2 Polarizing element 3 Protective film Page 20 C: \ 2D-C0DE \ 91-03 \ 90133266. ptd 1111 554182 Brief description of the drawings Figure 1 is a cross-sectional view of a polarizer according to a specific example of the present invention. 1111111 Page 21 C: \ 2D-CODE \ 91-03 \ 90133266.ptd

Claims (1)

554182 3. 25 替換本 _案號 901332fifi 年 月 g_ 六、中請專利範圍 1 · 一種偏光鏡，其包括：聚乙烯醇偏光元件、將偏光元 件固定於其間之兩層保護薄膜’其中，該偏光鏡之濕度不-超過以重量計3 %。 2 ·如申請專利範圍第1項之偏光鏡’其中，個別該保護 薄膜之濕度滲透性在40 °C X 90%R· H·之環境下為從5至3〇〇 (g/cm2 · 24小時）之範圍内。 3 ·如申請專利範圍第2項之偏光鏡，其中，個別該保護 薄膜為選自含去曱病樹脂、以及聚稀煙樹脂之族群的樹脂 所製成。 4 · 一種偏光鏡的製造方法，其包括在聚乙烯醇偏光元件 之相反邊黏上兩層保護薄膜而使聚乙稀醇偏光元件被固定 於兩層保護薄膜之間，其中，調整該聚乙烯醇偏光元件之 濕度使其不超過以重量計1 5%之情況下黏上該兩層保護薄 、 膜0 严 5 ·如申請專利範圍第4項之偏光鏡的製造方法，其中， — 個別該保護薄膜之濕度滲透性在4〇 °C X 90%R. H.之環境下 、 為攸5至300(g/cni2 ·24小時）之範圍内。 6 ·如申請專利範圍第5項之偏光鏡的製造方法，其中， 個別該保護薄膜為選自含去甲掐樹脂、以及聚烯烴樹脂之 族群的樹脂所製成。 通554182 3. 25 Replacement of this case _ Case No. 901332fifi year and month g_ Sixth, the scope of patent application 1 · A polarizer, which includes: a polyvinyl alcohol polarizing element, two protective films fixing the polarizing element therebetween ', where the polarizing light The humidity of the mirror does not exceed 3% by weight. 2 · As for the polarizing lens of item 1 of the scope of patent application, in which the humidity permeability of the protective film is from 5 to 300 (g / cm2 · 24 hours in an environment of 40 ° CX 90% R · H ·). ). 3. The polarizer according to item 2 of the scope of patent application, wherein each of the protective films is made of a resin selected from the group consisting of deceased resin and polysmoke resin. 4. A method for manufacturing a polarizer, comprising attaching two protective films on opposite sides of a polyvinyl alcohol polarizing element so that the polyvinyl polarizing element is fixed between the two protective films, wherein the polyethylene is adjusted The humidity of the alcohol polarizing element is such that the two layers of protective thin film and film are adhered under the condition of not exceeding 15% by weight. 5 As in the manufacturing method of the polarizer of item 4 of the patent application, among which- The humidity permeability of the protective film is within a range of 5 to 300 (g / cni2 · 24 hours) in an environment of 40 ° CX 90% RH. 6. The method of manufacturing a polarizer according to item 5 of the patent application, wherein each of the protective films is made of a resin selected from the group consisting of a nordic resin and a polyolefin resin. through C:\ 專利案件總檔案\90\90133266\90133266(替換C: \ Master file of patent cases \ 90 \ 90133266 \ 90133266 (replace