JP2913147B2 - Manufacturing method of laminated polarizing plate - Google Patents
Manufacturing method of laminated polarizing plateInfo
- Publication number
- JP2913147B2 JP2913147B2 JP7012989A JP1298995A JP2913147B2 JP 2913147 B2 JP2913147 B2 JP 2913147B2 JP 7012989 A JP7012989 A JP 7012989A JP 1298995 A JP1298995 A JP 1298995A JP 2913147 B2 JP2913147 B2 JP 2913147B2
- Authority
- JP
- Japan
- Prior art keywords
- polarizing plate
- laminated
- color
- polarizer
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Polarising Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は二枚の偏光板を貼合せて
成る積層偏光板、特にバイカラー偏光板として使用され
るレッド色カラー偏光板とブルー色カラー偏光板とを積
層した積層偏光板又はパープル色カラー偏光板とイエロ
ー色カラー偏光板とを積層した積層偏光板の製造方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated polarizing plate obtained by laminating two polarizing plates, and more particularly to a laminated polarizing plate obtained by laminating a red color polarizing plate and a blue color polarizing plate used as a bicolor polarizing plate. The present invention relates to a method for producing a laminated polarizing plate in which a plate or a purple color polarizing plate and a yellow color polarizing plate are laminated.
【０００２】[0002]
【従来の技術】従来から二枚の偏光板を貼合せた積層偏
光板が提案されている。この積層偏光板の構成を図１に
示す。2. Description of the Related Art Conventionally, a laminated polarizing plate in which two polarizing plates are laminated has been proposed. FIG. 1 shows the configuration of this laminated polarizing plate.
【０００３】この図１に係る積層偏光板の製造方法（以
下、従来法という。）は次の通りである。The method of manufacturing the laminated polarizing plate shown in FIG. 1 (hereinafter referred to as the conventional method) is as follows.
【０００４】ポリビニルアルコール樹脂フィルム（以
下、ＰＶＡフィルム）を染色後、一軸延伸して偏光素子
51ａを作成し、両面に支持体52ａを接着剤により貼合
せ、この一方若しくは双方の支持体52ａの表面にプロテ
クトフィルム56を貼合せて第一の偏光板53ａを作成し、
この第一の偏光板53ａの下面に粘着層54ａを形成したリ
リースフィルム55を貼合せ（支持体52ａの双方にプロテ
クトフィルム56を貼合せた場合には一方のプロテクトフ
ィルム56を剥離してリリースフィルム55を貼合せ
る。）、この第一の偏光板53ａを所定の軸角度，サイズ
にチップカットする（図２参照）。[0004] After dyeing a polyvinyl alcohol resin film (hereinafter referred to as PVA film), the film is uniaxially stretched and then polarized.
51a, a support 52a is attached to both sides with an adhesive, and a protective film 56 is attached to the surface of one or both supports 52a to form a first polarizing plate 53a,
A release film 55 in which an adhesive layer 54a is formed on the lower surface of the first polarizing plate 53a is bonded (when a protect film 56 is bonded to both of the supports 52a, one of the protect films 56 is peeled off to release the release film 55). The first polarizing plate 53a is chip-cut at a predetermined axis angle and size (see FIG. 2).
【０００５】同様にして偏光素子51ｂの両面に支持体52
ｂが付設され、一面にリリースフィルム55（粘着層54ｂ
付）が貼合された第二の偏光板53ｂを作成し、この第二
の偏光板53ｂも所定の軸角度，サイズにチップカットす
る（図３参照）。Similarly, a support 52 is provided on both surfaces of the polarizing element 51b.
b is attached, and a release film 55 (adhesive layer 54b
Is attached, and the second polarizing plate 53b is also chip-cut to a predetermined axis angle and size (see FIG. 3).
【０００６】続いて、この偏光板53ｂのチップのプロテ
クトフィルム56を剥離し、前記偏光板53ａのチップのリ
リースフィルム55を剥離し、両者を貼合機を使用して粘
着層54ａにより貼合せ、続いて、両チップの貼合時の端
縁のズレを４辺トリミングカットすることで整え、完成
品とする（図１参照）。Subsequently, the protection film 56 of the chip of the polarizing plate 53b is peeled off, the release film 55 of the chip of the polarizing plate 53a is peeled off, and both are bonded by an adhesive layer 54a using a bonding machine. Subsequently, the deviation of the edge at the time of bonding both chips is trimmed and cut on four sides to obtain a finished product (see FIG. 1).
【０００７】[0007]
【発明が解決しようとする課題】本発明者は種々検討し
たところ、上記従来法には次の欠点があることを確認し
た。As a result of various studies, the present inventors have confirmed that the above conventional method has the following disadvantages.
【０００８】 完成品のサイズ変更が生ずると前工程
に影響が出る。即ち、完成品のサイズ変更が生ずると粘
着加工済み偏光板53ａ，53ｂのチップカット工程におけ
るカット寸法の変更が必要となる。[0008] When the size of the finished product changes, the previous process is affected. That is, when the size of the finished product changes, it is necessary to change the cut dimensions of the adhesive-processed polarizing plates 53a and 53b in the chip cutting step.
【０００９】 板状の偏光板53ａ，53ｂ同志の貼合せ
である為、連続的な作業が難しい。 トリミングカッ
トが必須となり、工程が煩雑である。Since the plate-like polarizing plates 53a and 53b are bonded together, continuous work is difficult. Trimming cut is required, and the process is complicated.
【００１０】本発明は上記欠点を全て解決した積層偏光
板の製造方法を提供するものである。The present invention provides a method for manufacturing a laminated polarizing plate which solves all of the above disadvantages.
【００１１】[0011]
【課題を解決するための手段】添付図面を参照して本発
明の要旨を説明する。The gist of the present invention will be described with reference to the accompanying drawings.
【００１２】偏光素子１ａの両面に支持体２ａを付設し
て成る巾Ｓの第一の偏光板３ａと、偏光素子１ｂの両面
に支持体２ｂを付設して成る巾Ｓの第二の偏光板３ｂと
を貼合せて成る積層偏光板の製造方法であって、上面に
プロテクトフィルム７、下面にリリースフィルム６を有
し、巾Ｓにして光吸収軸が長さ方向に位置するロール状
の第一の偏光板３ａ並びに上面及び下面にプロテクトフ
ィルム７・７を有する第二の偏光板３ｂを形成し、続い
て、第二の偏光板３ｂを正方形にカットし、このカット
された各チップを平面上において９０°回転させて並設
した後、隣接するチップ同志を適宜な手段により継合す
るとともにロール状に巻回して該第二の偏光板３ｂを巾
Ｓにして各チップの光吸収軸が平行に位置するロール状
の継合偏光板３ｂとし、第一の偏光板３ａのリリースフ
ィルム６を除去し、継合偏光板３ｂの上面のプロテクト
フィルム７を除去し、該継合偏光板３ｂと第一の偏光板
３ａとを連続的に貼合せ、この貼合せにより形成される
積層偏光板の下面のプロテクトフィルム７を除去して代
わりにリリースフィルム６を貼合わせ、続いて、該積層
偏光板を所定サイズにカットするカット工程を行い、第
一の偏光板３ａと継合偏光板３ｂとの光吸収軸が直交す
る状態に配された積層偏光板を製造することを特徴とす
る積層偏光板の製造方法に係るものである。A first polarizing plate 3a having a width S and having a support 2a provided on both surfaces of a polarizing element 1a, and a second polarizing plate having a width S and having a support 2b provided on both surfaces of a polarizing element 1b. a manufacturing method of a multilayer polarizing plate formed by laminating a 3b, the upper surface
Protect film 7 and release film 6 on the bottom
Then, the first polarizing plate 3a in the form of a roll in which the light absorption axis is positioned in the length direction with the width S, and the top and bottom surfaces are protected.
Forming a second polarizing plate 3b having Irumu 7.7, followed
Then, the second polarizing plate 3b is cut into a square, and the cut chips are rotated by 90 ° on a plane so as to be arranged side by side. Then, adjacent chips are joined by an appropriate means and formed into a roll. a roll engagement polarizer 3b to the light absorption axis of each chip to said second polarizing plate 3b in the width S is positioned parallel wound, release off of the first polarizer 3a
The film 6 is removed to protect the upper surface of the joined polarizing plate 3b.
The film 7 is removed, the joined polarizing plate 3b and the first polarizing plate 3a are continuously bonded, and the protection film 7 on the lower surface of the laminated polarizing plate formed by the bonding is removed.
Warini laminated release film 6, followed by subjected to cutting process of cutting the laminated polarizing plate into a predetermined size, the optical absorption axis of the first polarizer 3a and engagement polarizer 3b is disposed in a state orthogonal The present invention relates to a method for producing a laminated polarizing plate, characterized by producing a laminated polarizing plate.
【００１３】ニュートラルグレー色偏光板Ａ，ガラス板
Ｂ間に液晶Ｃを配した液晶体，レッド色カラー偏光板
Ｄ，ブルー色カラー偏光板Ｅ，ガラス板Ｆ間に液晶Ｇを
配した液晶体，パープル色カラー偏光板Ｈ，イエロー色
カラー偏光板Ｉをこの順で貼合せて成る公知のＬＣＳ
（リキッドクリスタルシャッター）システムに使用され
る該レッド色カラー偏光板Ｄとブルー色カラー偏光板Ｅ
とを積層したバイカラー偏光板又はパープル色カラー偏
光板Ｈとイエロー色カラー偏光板Ｉとを積層したバイカ
ラー偏光板の製造方法であって、請求項１記載の積層偏
光板の製造方法により製造された積層偏光板を、上記レ
ッド色カラー偏光板Ｄとブルー色カラー偏光板Ｅとを積
層したバイカラー偏光板又はパープル色カラー偏光板Ｈ
とイエロー色カラー偏光板Ｉとを積層したバイカラー偏
光板に採用したことを特徴とする積層偏光板の製造方法
に係るものである。A liquid crystal having a liquid crystal C disposed between a neutral gray color polarizing plate A and a glass plate B, a liquid crystal having a liquid crystal G disposed between a red color polarizing plate D, a blue color polarizing plate E, and a glass plate F; A known LCS obtained by laminating a purple color polarizer H and a yellow color polarizer I in this order.
(Liquid crystal shutter) The red color polarizer D and the blue color polarizer E used in the system
Preparative method of manufacturing a laminated bicolor polarizer or purple color color polarizer H and yellow color polarizer I and bicolor polarizer obtained by laminating, manufactured by the method of manufacturing a laminated polarizing plate of claim 1, wherein The obtained laminated polarizing plate is replaced with a bicolor polarizing plate or a purple color polarizing plate H obtained by laminating the red color polarizing plate D and the blue color polarizing plate E.
And a method for producing a laminated polarizing plate, wherein the method is adopted as a bicolor polarizing plate obtained by laminating a yellow color polarizing plate I and a yellow color polarizing plate I.
【００１４】[0014]
【実施例】本実施例は、図４に図示したようなニュート
ラルグレー色偏光板Ａ，ガラス板Ｂ間に液晶Ｃを配した
液晶体，レッド色カラー偏光板Ｄ，ブルー色カラー偏光
板Ｅ，ガラス板Ｆ間に液晶Ｇを配した液晶体，パープル
色カラー偏光板Ｈ，イエロー色カラー偏光板Ｉをこの順
で貼合せて成る公知のＬＣＳ（リキッドクリスタルシャ
ッター）システムに使用される該レッド色カラー偏光板
Ｄとブルー色カラー偏光板Ｅとを積層したバイカラー偏
光板又はパープル色カラー偏光板Ｈとイエロー色カラー
偏光板Ｉとを積層したバイカラー偏光板の製造方法であ
る。The present embodiment is directed to a liquid crystal body having a liquid crystal C disposed between a neutral gray polarizing plate A and a glass plate B as shown in FIG. 4, a red color polarizing plate D, a blue color polarizing plate E, The red color used in a known LCS (Liquid Crystal Shutter) system comprising a liquid crystal body having a liquid crystal G disposed between glass plates F, a purple color polarizer H, and a yellow color polarizer I in this order. This is a method for producing a bicolor polarizing plate in which a color polarizing plate D and a blue color polarizing plate E are stacked or a bicolor polarizing plate in which a purple color polarizing plate H and a yellow color polarizing plate I are stacked.
【００１５】ここで、バイカラー偏光板とは、白黒ＣＲ
Ｔの前に設置することで該白黒ＣＲＴをカラー化する手
段の１つであるＬＣＳ（リキッドクリスタルシャッタ
ー）システムに必要不可欠な部材である。Here, a bicolor polarizing plate is a monochrome CR.
It is an indispensable member of an LCS (Liquid Crystal Shutter) system, which is one of the means to colorize the black and white CRT by being installed before the T.
【００１６】巾８４０ｍｍのＰＶＡフィルムを所定色に
染色後、一軸延伸して巾５００ｍｍの偏光素子１ａを作
成し、両面に支持体２ａ（例えばケン化処理済みトリア
セチルセルロースフィルム）を接着剤（例えばポリビニ
ルアルコール水溶液）により貼合せ、この支持体２ａの
一方若しくは双方の表面にプロテクトフィルム７（例え
ばポリエチレン共押出しフィルム）を貼合せて第一の偏
光板３ａを作成し、この第一の偏光板３ａの下面に継合
偏光板３ｂを貼合せる為の粘着層４ａ（例えばアクリル
系粘着剤）を形成したリリースフィルム６を貼合せ（双
方にプロテクトフィルム７を貼合せた場合には一方のプ
ロテクトフィルム７を剥離してリリースフィルム６を貼
合せる。）、一面にリリースフィルム６が貼合せられた
巾５００ｍｍにして所定長の第一の偏光板３ａを作成す
る。この第一の偏光板３ａは巻回してロール状としてお
く（図５，６参照）。尚、この第一の偏光板３ａの光吸
収軸（図５中矢印で図示）は該第一の偏光板３ａの長さ
方向である。After dyeing a PVA film having a width of 840 mm into a predetermined color, the film is uniaxially stretched to form a polarizing element 1a having a width of 500 mm. Then, a protective film 7 (for example, a polyethylene co-extruded film) is laminated on one or both surfaces of the support 2a to form a first polarizing plate 3a, and the first polarizing plate 3a one protection film when laminated with protective film 7 laminated to the release film 6 to form a pressure-sensitive layer 4a (acrylic adhesive for example) lower surface for is laminated an engagement polarizing plate 3b of (both 7 is peeled off and the release film 6 is laminated.) Creating a first polarizer 3a of predetermined length. The first polarizing plate 3a is wound into a roll shape (see FIGS. 5 and 6). The light absorption axis (shown by an arrow in FIG. 5) of the first polarizing plate 3a is the length direction of the first polarizing plate 3a.
【００１７】上記と同様にして偏光素子１ｂの両面に支
持体２ｂが付された巾５００ｍｍにして所定長の第二の
偏光板３ｂ（光吸収軸は長さ方向）を作成する。この第
二の偏光板３ｂは以下の作業による損傷を防止する為双
方の支持体２ｂにプロテクトフィルム７を設けた状態と
する（図７参照）。In the same manner as above, a second polarizing plate 3b having a width of 500 mm with a support 2b attached to both surfaces of the polarizing element 1b and a predetermined length (the light absorption axis is in the length direction) is prepared. The second polarizing plate 3b is in a state where the protection films 7 are provided on both the supports 2b to prevent damage due to the following operations (see FIG. 7).
【００１８】続いて、この第二の偏光板３ｂを長さ方向
５００ｍｍごとにカットし、正方形のチップを得、この
各チップを平面上において９０°回転し（各チップの光
吸収軸（矢印で図示）が互いに平行となる状態にし）、
各チップ同志を適宜なテープ８（例えば市販のセロハン
粘着テープ）で継合して継合偏光板３ｂとする。この継
合偏光板３ｂも巻回してロール状としておく（図８参
照）。Subsequently, the second polarizing plate 3b is cut every 500 mm in the length direction to obtain square chips. Each chip is rotated by 90 ° on a plane (the light absorption axis of each chip (indicated by an arrow)). Illustrated) are parallel to each other),
The chips are joined together with an appropriate tape 8 (for example, a commercially available cellophane adhesive tape) to form a joined polarizing plate 3b. The joined polarizing plate 3b is also wound into a roll (see FIG. 8).
【００１９】このロール状の継合偏光板３ｂの一面のプ
ロテクトフィルム７を剥離し、前記ロール状の第一の偏
光板３ａのリリースフィルム６を剥離し、両者を粘着層
４ａを介して貼合せ、この一体となった積層偏光板の一
面のプロテクトフィルム７を剥離して粘着層５付のリリ
ースフィルム６（例えば片面離型処理付きポリエステル
フィルム）を貼着する（図９参照）。The protective film 7 on one side of the roll-shaped joining polarizing plate 3b is peeled off, the release film 6 of the roll-shaped first polarizing plate 3a is peeled off, and both are bonded via an adhesive layer 4a. Then, the protection film 7 on one surface of the integrated laminated polarizing plate is peeled off, and a release film 6 with an adhesive layer 5 (for example, a polyester film with a single-side release treatment) is adhered (see FIG. 9).
【００２０】最後にこの積層偏光板を所定のサイズにチ
ップカットをすると、偏光素子１ａの光吸収軸と偏光素
子１ｂの光吸収軸とが直交する状態の積層偏光板が得ら
れることになる。Finally, when the laminated polarizing plate is cut into chips of a predetermined size, a laminated polarizing plate in which the light absorption axis of the polarizing element 1a and the light absorption axis of the polarizing element 1b are orthogonal to each other is obtained.
【００２１】この積層偏光板をＬＣＳシステムにおける
レッド色カラー偏光板Ｄとブルー色カラー偏光板Ｅとを
積層したバイカラー偏光板又はパープル色カラー偏光板
Ｈとイエロー色カラー偏光板Ｉとを積層したバイカラー
偏光板に使用する。This laminated polarizing plate is obtained by laminating a bicolor polarizing plate obtained by laminating a red color polarizing plate D and a blue color polarizing plate E or a purple color polarizing plate H and a yellow color polarizing plate I in an LCS system. Used for bicolor polarizing plates.
【００２２】尚、本実施例は第一の偏光板３ａに形成し
た粘着層４ａにより継合偏光板３ｂと積層した場合であ
るが、継合偏光板３ｂの方に粘着層を形成し、両者を積
層しても良い。In this embodiment, the adhesive layer 4a formed on the first polarizing plate 3a is laminated with the joint polarizing plate 3b. However, the adhesive layer is formed on the joint polarizing plate 3b, May be laminated.
【００２３】この積層偏光板の構造は図９に図示した通
りである。The structure of the laminated polarizing plate is as shown in FIG.
【００２４】本実施例は上述のようにしたから、 完
成品のサイズ変更が前工程に影響を及ぼさなくなる為、
第一の偏光板３ａと継合偏光板３ｂとを積層した大判の
状態での在庫が可能となる。Since this embodiment has been described above, the change in the size of the finished product does not affect the previous process.
Stocking in a large format in which the first polarizing plate 3a and the joint polarizing plate 3b are stacked can be performed.
【００２５】 第一の偏光板３ａと継合偏光板３ｂと
はロールとロールとの連続的な貼合せの為、それだけ効
率的な貼合せが可能となる。Since the first polarizing plate 3a and the joined polarizing plate 3b are continuously bonded to each other, efficient bonding is possible.
【００２６】 従来法のようなトリミング工程が不要
となる為、それだけ製造効率が良好となる。即ち、従来
法においては完成品を整える為、即ち、二つの偏光板の
巾方向におけるズレ（段差）をなくす為、トリミングカ
ットを必須の工程とする訳であるが、本実施例は完成品
を得る直前でチップカットして完成品とする為、このチ
ップカットが実質上、トリミングカットの役割を果た
し、従来法のように独自にトリミングカットをする必要
がなく、それだけ製造効率が良好となる。Since the trimming step as in the conventional method is not required, the manufacturing efficiency is improved accordingly. That is, in the conventional method, trimming cutting is an essential step in order to prepare a finished product, that is, to eliminate a displacement (step) in the width direction of the two polarizing plates. Since a chip is cut immediately before obtaining a finished product, the chip cut substantially serves as a trimming cut, and it is not necessary to perform a trimming cut independently as in the conventional method, and the manufacturing efficiency is improved accordingly.
【００２７】尚、本実施例は継合偏光板３ｂを作成する
際、正方形のカットではなく、平行四辺形のカットを行
うことで偏光素子１ａの光吸収軸と偏光素子１ｂの光吸
収軸とが所定の角度で交叉した積層偏光板を製造するこ
とも可能となる。In this embodiment, when the jointed polarizing plate 3b is formed, the light absorption axis of the polarizing element 1a and the light absorption axis of the polarizing element 1b are not cut by a square but by a parallelogram. Can be manufactured at a predetermined angle.
【００２８】[0028]
【発明の効果】本発明は上述のようにしたから、効率的
な積層偏光板の製造が可能となり、よって、製品のコス
トダウン、製品の受注から納入するまでの時間の短縮化
が可能となる。As described above, the present invention makes it possible to efficiently manufacture a laminated polarizing plate, thereby reducing the cost of a product and shortening the time from receiving an order to delivery of the product. .
【図１】従来法に係る積層偏光板の構造説明図である。FIG. 1 is a structural explanatory view of a laminated polarizing plate according to a conventional method.
【図２】従来法に係る第一の偏光板の構造説明図であ
る。FIG. 2 is a structural explanatory view of a first polarizing plate according to a conventional method.
【図３】従来法に係る第二の偏光板の構造説明図であ
る。FIG. 3 is a structural explanatory view of a second polarizing plate according to a conventional method.
【図４】ＬＣＳシステムの説明図である。FIG. 4 is an explanatory diagram of an LCS system.
【図５】本実施例に係る第一の偏光板の説明図である。FIG. 5 is an explanatory diagram of a first polarizing plate according to the present embodiment.
【図６】本実施例に係る第一の偏光板の構造説明図であ
る。FIG. 6 is a structural explanatory view of a first polarizing plate according to the present embodiment.
【図７】本実施例に係る第二の偏光板の構造説明図であ
る。FIG. 7 is a structural explanatory view of a second polarizing plate according to the present example.
【図８】本実施例に係る継合偏光板の説明図である。FIG. 8 is an explanatory diagram of a joined polarizing plate according to the present embodiment.
【図９】本実施例に係る積層偏光板の構造説明図であ
る。FIG. 9 is a structural explanatory view of a laminated polarizing plate according to the present example.
１ａ，１ｂ 偏光素子 ２ａ，２ｂ 支持体 ３ａ 第一の偏光板 ３ｂ 第二の偏光板，継合偏光板６ リリースフィルム ７ プロテクトフィルム Ｓ 巾 Ａ ニュートラルグレー色偏光板 Ｂ ガラス板 Ｃ 液晶 Ｄ レッド色カラー偏光板 Ｅ ブルー色カラー偏光板 Ｆ ガラス板 Ｇ 液晶 Ｈ パープル色カラー偏光板 Ｉ イエロー色カラー偏光板1a, 1b Polarizer 2a, 2b Support 3a First Polarizer 3b Second Polarizer, Joint Polarizer 6 Release Film 7 Protect Film S Width A Neutral Gray Polarizer B Glass Plate C Liquid Crystal D Red Color Polarizer E Blue color polarizer F Glass plate G Liquid crystal H Purple color polarizer I Yellow color polarizer
フロントページの続き (72)発明者 恩田 久美子 新潟県上越市南本町１丁目５番５号 株 式会社有沢製作所内 (72)発明者 前田 一男 新潟県上越市南本町１丁目５番５号 株 式会社有沢製作所内 (56)参考文献 特開 平６−300918（ＪＰ，Ａ) 特開 平６−289221（ＪＰ，Ａ) 特開 平１−200205（ＪＰ，Ａ) 特開 平８−201623（ＪＰ，Ａ) 特開 平８−201625（ＪＰ，Ａ) 実開 昭60−159402（ＪＰ，Ｕ) 実開 昭63−141903（ＪＰ，Ｕ) 特公 昭58−45010（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 5/30 Continued on the front page (72) Inventor Kumiko Onda 1-5-5 Minamihonmachi, Joetsu City, Niigata Prefecture Inside Arisawa Works (72) Inventor Kazuo Maeda 1-5-5 Minamihonmachi, Joetsu City, Niigata Prefecture Stock Company (56) References JP-A-6-300918 (JP, A) JP-A-6-289221 (JP, A) JP-A-1-200205 (JP, A) JP-A-8-201623 (JP) JP-A-8-201625 (JP, A) JP-A-60-159402 (JP, U) JP-A-63-141903 (JP, U) JP-B-58-4510 (JP, B2) (58) Field surveyed (Int.Cl. 6 , DB name) G02B 5/30
Claims (2)
して成る巾Ｓの第一の偏光板３ａと、偏光素子１ｂの両
面に支持体２ｂを付設して成る巾Ｓの第二の偏光板３ｂ
とを貼合せて成る積層偏光板の製造方法であって、上面
にプロテクトフィルム７、下面にリリースフィルム６を
有し、巾Ｓにして光吸収軸が長さ方向に位置するロール
状の第一の偏光板３ａ並びに上面及び下面にプロテクト
フィルム７・７を有する第二の偏光板３ｂを形成し、続
いて、第二の偏光板３ｂを正方形にカットし、このカッ
トされた各チップを平面上において９０°回転させて並
設した後、隣接するチップ同志を適宜な手段により継合
するとともにロール状に巻回して該第二の偏光板３ｂを
巾Ｓにして各チップの光吸収軸が平行に位置するロール
状の継合偏光板３ｂとし、第一の偏光板３ａのリリース
フィルム６を除去し、継合偏光板３ｂの上面のプロテク
トフィルム７を除去し、該継合偏光板３ｂと第一の偏光
板３ａとを連続的に貼合せ、この貼合せにより形成され
る積層偏光板の下面のプロテクトフィルム７を除去して
代わりにリリースフィルム６を貼合わせ、続いて、該積
層偏光板を所定サイズにカットするカット工程を行い、
第一の偏光板３ａと継合偏光板３ｂとの光吸収軸が直交
する状態に配された積層偏光板を製造することを特徴と
する積層偏光板の製造方法。1. A first polarizing plate 3a having a width S in which a support 2a is provided on both surfaces of a polarizing element 1a and a second polarizing plate 3a having a support 2b provided in both surfaces of a polarizing element 1b. Polarizing plate 3b
A manufacturing method of a multilayer polarizing plate formed by laminating the bets, top
Protect film 7 and release film 6 on the bottom
The first polarizing plate 3a in the form of a roll having a width S and a light absorption axis positioned in the length direction, and the upper and lower surfaces are protected.
A second polarizing plate 3b having a film 7.7 formed, continued
Then, the second polarizing plate 3b is cut into a square, and the cut chips are rotated by 90 ° on a plane and arranged side by side. Then, adjacent chips are joined by appropriate means and formed into a roll. After winding, the second polarizing plate 3b is set to have a width S to form a rolled joint polarizing plate 3b in which the light absorption axes of the chips are positioned in parallel, and release of the first polarizing plate 3a
After removing the film 6, protect the upper surface of the jointed polarizing plate 3b.
Then, the bonded polarizing plate 3b and the first polarizing plate 3a are continuously bonded to each other, and the protection film 7 on the lower surface of the laminated polarizing plate formed by the bonding is removed.
Alternatively laminated release film 6, followed by subjected to cutting step of cutting the product <br/> layer polarizing plate into a predetermined size,
A method for producing a laminated polarizing plate, comprising producing a laminated polarizing plate in which the light absorption axes of a first polarizing plate 3a and a joined polarizing plate 3b are orthogonal to each other.
板Ｂ間に液晶Ｃを配した液晶体，レッド色カラー偏光板
Ｄ，ブルー色カラー偏光板Ｅ，ガラス板Ｆ間に液晶Ｇを
配した液晶体，パープル色カラー偏光板Ｈ，イエロー色
カラー偏光板Ｉをこの順で貼合せて成る公知のＬＣＳ
（リキッドクリスタルシャッター）システムに使用され
る該レッド色カラー偏光板Ｄとブルー色カラー偏光板Ｅ
とを積層したバイカラー偏光板又はパープル色カラー偏
光板Ｈとイエロー色カラー偏光板Ｉとを積層したバイカ
ラー偏光板の製造方法であって、請求項１記載の積層偏
光板の製造方法により製造された積層偏光板を、上記レ
ッド色カラー偏光板Ｄとブルー色カラー偏光板Ｅとを積
層したバイカラー偏光板又はパープル色カラー偏光板Ｈ
とイエロー色カラー偏光板Ｉとを積層したバイカラー偏
光板に採用したことを特徴とする積層偏光板の製造方
法。2. A liquid crystal in which a liquid crystal C is disposed between a neutral gray color polarizing plate A and a glass plate B, a liquid crystal in which a liquid crystal G is disposed between a red color polarizing plate D, a blue color polarizing plate E, and a glass plate F. LCS formed by laminating a body, a purple color polarizer H and a yellow color polarizer I in this order
(Liquid crystal shutter) The red color polarizer D and the blue color polarizer E used in the system
Preparative method of manufacturing a laminated bicolor polarizer or purple color color polarizer H and yellow color polarizer I and bicolor polarizer obtained by laminating, manufactured by the method of manufacturing a laminated polarizing plate of claim 1, wherein The obtained laminated polarizing plate is replaced with a bicolor polarizing plate or a purple color polarizing plate H obtained by laminating the red color polarizing plate D and the blue color polarizing plate E.
And a yellow color polarizing plate I. A method for producing a laminated polarizing plate, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7012989A JP2913147B2 (en) | 1995-01-30 | 1995-01-30 | Manufacturing method of laminated polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7012989A JP2913147B2 (en) | 1995-01-30 | 1995-01-30 | Manufacturing method of laminated polarizing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08201624A JPH08201624A (en) | 1996-08-09 |
| JP2913147B2 true JP2913147B2 (en) | 1999-06-28 |
Family
ID=11820625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7012989A Expired - Fee Related JP2913147B2 (en) | 1995-01-30 | 1995-01-30 | Manufacturing method of laminated polarizing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2913147B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845010A (en) * | 1981-09-11 | 1983-03-16 | ミサワホ−ム株式会社 | Press roller stocking device |
| JPS60159402U (en) * | 1984-03-30 | 1985-10-23 | 日東電工株式会社 | Polarizer |
| JPS63141903U (en) * | 1987-03-09 | 1988-09-19 | ||
| JPH06289221A (en) * | 1993-03-31 | 1994-10-18 | Arisawa Mfg Co Ltd | Production of elliptically polarizing plate |
| JP3206850B2 (en) * | 1993-04-15 | 2001-09-10 | 日本合成化学工業株式会社 | Manufacturing method of elliptically polarizing plate |
-
1995
- 1995-01-30 JP JP7012989A patent/JP2913147B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08201624A (en) | 1996-08-09 |
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