JPH10104425A - Method and device for sticking rotary polarizing element film - Google Patents
Method and device for sticking rotary polarizing element filmInfo
- Publication number
- JPH10104425A JPH10104425A JP25911696A JP25911696A JPH10104425A JP H10104425 A JPH10104425 A JP H10104425A JP 25911696 A JP25911696 A JP 25911696A JP 25911696 A JP25911696 A JP 25911696A JP H10104425 A JPH10104425 A JP H10104425A
- Authority
- JP
- Japan
- Prior art keywords
- optical rotation
- element film
- rotation element
- polarizing plate
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Polarising Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は偏光方向を９０°旋
光する旋光素子フィルムを透明板状体の所定の位置に貼
着するための方法と装置に関するBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for attaching an optical rotation element film having a polarization direction of 90.degree. To a predetermined position on a transparent plate.
【０００２】[0002]
【従来の技術】従来、二重像を防止する目的で、ヘッド
アップディスプレイなどに応用が期待される旋光素子フ
ィルムを自動車用のウィンドシールドなどに貼着すると
きに、正確に貼着されていないとヘッドアップディスプ
レイ用として使用する場合には、二重像が運転者などに
視認され、安全上も好ましいものではないので、正確に
所定位置に貼着する必要があり、そのための方法として
従来は、旋光素子フィルムが多数枚積み重ねられた枚葉
式の旋光素子フィルムを一枚ずつ人手により、ウィンド
シールドの裏面などに、点や線によって旋光素子フィル
ムの基準外形などのマークを形成した透明シートを密着
させて、そのマークに合致するように貼付けていた。2. Description of the Related Art Conventionally, when an optical rotation element film, which is expected to be applied to a head-up display or the like, is applied to a windshield or the like for an automobile for the purpose of preventing a double image, the film is not accurately attached. When used for head-up displays, the double image is visually recognized by the driver or the like, and is not preferable in terms of safety.Therefore, it is necessary to accurately attach the double image to a predetermined position. A transparent sheet with a mark such as the reference outer shape of the optical rotation element film formed by dots or lines on the back surface of the windshield by hand, one by one, on a single-wafer type optical rotation element film in which many optical rotation element films are stacked. It was stuck so as to match the mark.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うに作業者がこのマークとの位置関係を目視により確認
しながら、貼付する方法では、局部的に確認することは
できても、全体を見ることは困難であり、従って非常に
手間がかかり、作業性が悪く、さらに局部的にマークと
旋光素子フィルムの位置が合致していたとしても、他の
箇所ではずれていることがあり、旋光素子フィルム全体
を正確に所定位置に貼り付けることは困難であった。However, in the method of sticking while the operator visually confirms the positional relationship with the mark as described above, even if the operator can confirm the position locally, he or she looks at the whole. Is difficult, therefore, it is very troublesome, the workability is poor, and even if the position of the mark and the optical rotation element film are locally coincident with each other, they may be misaligned in other places, and the optical rotation element film It has been difficult to accurately paste the entire body at a predetermined position.
【０００４】また、枚葉式の旋光素子フィルムの場合に
それぞれの旋光素子フィルムは数１０μｍと薄いもので
あるから、例えば先端に吸着具などを具備したロボット
などにより自動的に処理を行おうとしても、吸着して正
確に所定場所に移送させることは困難であった。In the case of a single-wafer type optical rotation element film, since each optical rotation element film is as thin as several tens of μm, it is attempted to automatically perform processing by, for example, a robot equipped with a suction tool at the tip. However, it is difficult to adsorb and transfer it to a predetermined place.
【０００５】本発明はこのような点に鑑みてなされたも
のであり、旋光素子フィルムを基準位置に正確に、しか
も容易に貼付することができる貼付方法と貼付装置を提
供することを目的とする。The present invention has been made in view of the above points, and has as its object to provide a sticking method and a sticking device which can accurately and easily stick the optical rotation element film to a reference position. .
【０００６】[0006]
【課題を解決するための手段】本発明は、透明板状体の
所定位置に旋光素子フィルムを貼付する方法であって、
該透明板状体を基準位置に配設したときに、旋光素子フ
ィルムが配設される基準位置との許容範囲の最大と最小
の外形の間を、第１の偏光板によって偏光された光が通
過するようにして、その状態で保護フィルムを兼ねる連
続したキャリアフィルム上に所定間隔をおいて貼りつけ
られた旋光素子フィルムを前記透明板状体の所定位置に
供給し、第２の偏光板を通して旋光素子フィルムを透視
することにより旋光素子フィルムが所定の位置にあるか
どうかを判定し、押圧ロールによって貼付するようにし
たことを特徴とする。SUMMARY OF THE INVENTION The present invention provides a method for attaching an optical rotation element film to a predetermined position of a transparent plate,
When the transparent plate is disposed at the reference position, the light polarized by the first polarizing plate passes between the maximum and minimum outer shapes of the allowable range with the reference position where the optical rotation element film is disposed. As it passes, the optical rotation element film attached at a predetermined interval on a continuous carrier film also serving as a protective film in that state is supplied to a predetermined position of the transparent plate-like body, and is passed through the second polarizing plate. It is characterized in that it is determined whether or not the optical rotation element film is at a predetermined position by seeing through the optical rotation element film, and the optical rotation element film is stuck by a pressing roll.
【０００７】また、この方法を具体的に実施するための
貼付装置としては、透明板状体の曲率にほぼ合致するよ
うに支持し、位置決め用ストッパーを有する載置台と、
載置台の一部に、前記透明板状体が載置されたときに該
板状体にほぼ裏面から密着するよう配置され、旋光素子
フィルムの基準位置最大外形と最小外形により形成され
る部分を偏光するようにした第１の偏光板と、該第１の
偏光板の下方に配設した光源と、該第１の偏光板の上方
に配設した第２の偏光板と、所定間隔をおいて旋光素子
フィルムが貼りつけられた連続したキャリアフィルムを
巻き付けた供給ロールと該キャリアフィルムを巻き取る
巻き取りロールと上下水平方向に移動自在な押圧ロール
を少なくとも具備するようにしたことを特徴とするもの
であり、さらに載置台は複数の昇降自在な支持棒により
構成するとともに、第１の偏光板も昇降自在に構成する
と、より好ましい。[0007] Further, as a sticking device for concretely carrying out this method, a mounting table having a positioning stopper, which is supported so as to substantially match the curvature of the transparent plate-like body,
A part of the mounting table, when the transparent plate-shaped body is mounted, is disposed so as to be in close contact with the plate-shaped body from the back surface, a portion formed by the reference position maximum outer shape and minimum outer shape of the optical rotation element film. A first polarizing plate configured to polarize light, a light source disposed below the first polarizing plate, and a second polarizing plate disposed above the first polarizing plate, at a predetermined interval. And a supply roll wound with a continuous carrier film to which the optical rotation element film is attached, a winding roll for winding the carrier film, and a pressing roll movable vertically and horizontally. More preferably, the mounting table is constituted by a plurality of vertically movable support rods, and the first polarizing plate is also constructed to be vertically movable.
【０００８】[0008]
【発明の実施の形態】旋光素子フィルムは液晶状態でね
じれネマティック配向し、液晶転移点以下ではガラス状
態となる液晶ポリマーなどの旋光素子フィルム、λ／２
板などの偏光方向を９０°旋光させるものであればよい
が、液晶状態でねじれネマティック配向し、液晶転移点
以下ではガラス状態となる液晶ポリマーなどの旋光素子
フィルムは、広い波長域にわたり透過率が高く、好まし
い。BEST MODE FOR CARRYING OUT THE INVENTION An optical rotation element film such as a liquid crystal polymer, which is twisted nematic in a liquid crystal state and becomes a glass state below a liquid crystal transition point, is λ / 2.
It is sufficient if the polarization direction of a plate or the like is rotated by 90 ° .However, the optical rotation element film such as a liquid crystal polymer that is twisted nematically aligned in a liquid crystal state and is in a glass state below a liquid crystal transition point has a transmittance over a wide wavelength range. High and preferred.
【０００９】透明板状体は、具体的には自動車、航空機
など乗り物用の湾曲したフロントガラスを対象にしてい
るが、ヘッドアップディスプレイのコンバイナーを別置
きタイプとすることも可能であり、この場合には板ガラ
ス以外にも、ポリカーボネート樹脂、アクリル樹脂など
の透明な樹脂を使用することもできる。The transparent plate is specifically intended for a curved windshield for vehicles such as automobiles and airplanes. However, a combiner for a head-up display can be provided separately. In addition to transparent glass, a transparent resin such as a polycarbonate resin and an acrylic resin can also be used.
【００１０】旋光素子フィルムを自動車用などのウィン
ドシールドへ貼着する場合には車外側板ガラスの凹面側
（中間膜側）表面に両面接着テープにより貼着した後、
車内側板ガラスとの間にポリビニールブチラールなどの
中間膜により、通常のオートクレーブ処理をして合わせ
処理を行いウィンドシールドを得ると、耐衝撃性などに
優れているので好ましい。When the optical rotation element film is attached to a windshield for an automobile or the like, the optical rotation element film is attached to the concave side (intermediate film side) surface of the outer side glass sheet using a double-sided adhesive tape.
It is preferable to perform a normal autoclave treatment with an interlayer film such as polyvinyl butyral between the inner side glass plate and the inner glass plate to perform a joining process to obtain a windshield because it is excellent in impact resistance and the like.
【００１１】貼付装置は、透明板状体の曲率にほぼ合致
するように支持し、位置決め用ストッパーを有する載置
台と、載置台の一部に、前記透明板状体が載置されたと
きに該板状体にほぼ裏面から密着するよう配置し、旋光
素子フィルムの基準位置最大外形と最小外形により形成
される部分を偏光するようにした第１の偏光板と、該第
１の偏光板の下方に配設した光源と該第１の偏光板の上
方に配設した第２の偏光板と、所定間隔をおいて旋光素
子フィルムが貼りつけられた連続したキャリアフィルム
を巻き付けたロールと該キャリアフィルムを巻き取る巻
き取りロールと上下水平方向に移動自在な押圧ロールを
少なくとも具備するものであり、載置台は複数の昇降自
在な支持棒により構成するとともに、第１の偏光板も昇
降自在に構成すると透明板状体の曲率が変わっても支持
棒の長さを変えるだけで対応することができるので、よ
り好ましいが、曲率が一定である場合には、第１の偏光
板部分以外のほとんどの部分を透明板状体の曲面に合致
する曲面に形成しても勿論よい。[0011] The sticking device is supported so as to substantially conform to the curvature of the transparent plate-like body, and has a mounting table having a positioning stopper, and when the transparent plate-like body is mounted on a part of the mounting table. A first polarizing plate which is disposed so as to be in close contact with the plate-like body from the rear surface thereof, and polarizes a portion formed by the reference position maximum outer shape and the minimum outer shape of the optical rotation element film; A roll having a light source disposed below, a second polarizing plate disposed above the first polarizing plate, a continuous carrier film on which an optical rotation element film is attached at a predetermined interval, and the carrier At least a take-up roll for winding the film and a pressing roll movable vertically and horizontally are provided. The mounting table is constituted by a plurality of vertically movable support rods, and the first polarizing plate is also vertically movable. Do Even if the curvature of the transparent plate is changed, it can be dealt with only by changing the length of the support rod, so it is more preferable. However, when the curvature is constant, most parts other than the first polarizing plate part are used. May be formed on a curved surface that matches the curved surface of the transparent plate.
【００１２】また、押圧ロールは実施例のような電動機
によってベルトを駆動させ、ベルトによってシリンダを
水平方向に移動自在とし、シリンダによって上下動を行
うようにすればよい。Further, the pressing roll drives the belt by an electric motor as in the embodiment, the cylinder can be moved in the horizontal direction by the belt, and the cylinder can be moved up and down by the cylinder.
【００１３】このような貼付装置を使用して旋光素子フ
ィルムの貼付を行うには、まず、合わせ処理前の車外側
板ガラスなどの透明板状体をこの載置台に載せ、ストッ
パーに当接させることにより、位置決めを行う。同時
に、旋光素子フィルムの基準の大きさの許容範囲の最大
の外形と最小の外形の間を偏光するようにした第１の偏
光板を透明板状体の裏面に密着させる。In order to attach the optical rotatory element film using such an attaching device, first, a transparent plate-like body such as an outside glass plate before the alignment process is placed on the mounting table and brought into contact with a stopper. To perform positioning. At the same time, the first polarizing plate, which polarizes light between the maximum outer shape and the minimum outer shape in the allowable range of the reference size of the optical rotation element film, is brought into close contact with the back surface of the transparent plate.
【００１４】第１の偏光板は、偏光板を旋光素子フィル
ムの基準の大きさの最大許容外形と最小許容外形の幅に
切り抜いて、板ガラスなどの透明基板に貼り付けたもの
であり、この第１の偏光板は載置台と相対的に一定の位
置、すなわち透明板状体が位置決めされたときに、旋光
素子フィルムの貼付位置に相当するように配置するの
で、正確に旋光素子フィルムの基準位置を示すことにな
る。The first polarizing plate is obtained by cutting a polarizing plate into a width of a maximum allowable outer shape and a minimum allowable outer shape of a reference size of the optical rotation element film, and affixing the cutout to a transparent substrate such as a glass plate. Since the polarizing plate 1 is arranged so as to correspond to a fixed position relative to the mounting table, that is, to correspond to the position where the optical rotation element film is attached when the transparent plate is positioned, the reference position of the optical rotation element film can be accurately determined. Will be shown.
【００１５】第２の偏光板は第１の偏光板とは反対側
の、例えば板ガラス上部に、第１の偏光板の偏光方向と
同じかあるいは９０°偏光した配置にする。目視によっ
て旋光素子フィルムの貼付位置が所定位置にあるかどう
かを判断する場合には、作業者より若干低い位置に配置
し、ＣＣＤカメラなどにより光学的に判断する場合に
は、ＣＣＤカメラの前方に一体に設けるとよい。The second polarizing plate is arranged on the opposite side of the first polarizing plate, for example, on top of a glass plate, so as to be polarized in the same direction as that of the first polarizing plate or at 90 °. When it is determined by visual inspection whether the position of the optical rotation element film is at the predetermined position, the optical rotation element film is disposed at a position slightly lower than the worker, and when it is determined optically by a CCD camera or the like, it is located in front of the CCD camera. It may be provided integrally.
【００１６】透明板状体が位置決めされ、第１の偏光板
が透明板状体裏面に密着された状態で、保護フィルムを
兼ねる連続したキャリアフィルム上に所定間隔をおいて
貼りつけられた旋光素子フィルムを巻取ロールの駆動に
より、前記透明板状体の所定位置に供給し、第２の偏光
板を通して旋光素子フィルムを透視することにより旋光
素子フィルムが所定の位置にあれば、押圧ロールを下降
させ、水平方向に移動押圧させて所定位置に旋光素子フ
ィルムを貼り付ける。An optical rotator attached to a continuous carrier film also serving as a protective film at a predetermined interval in a state where the transparent plate is positioned and the first polarizing plate is in close contact with the back surface of the transparent plate. The film is supplied to a predetermined position of the transparent plate by driving the take-up roll, and the optical rotation element film is seen through the second polarizing plate. If the optical rotation element film is at the predetermined position, the pressing roll is lowered. Then, the optical rotation element film is attached to a predetermined position by moving and pressing in the horizontal direction.
【００１７】もし位置がずれている場合には、例えば旋
光素子フィルムが行き過ぎている場合には、供給ロール
を逆回転させ（この場合には巻き取りロールはフリーに
しておく）、旋光素子フィルムが逆に手前にある場合に
は巻き取りロールを駆動させて修正して、再度検査して
許容範囲内に旋光素子フィルムがあることを確認して押
圧ロールにより貼り付ける。If the position is shifted, for example, if the optical rotation element film is excessive, the supply roll is rotated reversely (in this case, the winding roll is kept free), and the optical rotation element film is Conversely, if the film is located on the near side, the take-up roll is driven and corrected, and the inspection is performed again to confirm that the optical rotation element film is within the allowable range.
【００１８】旋光素子フィルムが所定の位置にあるかど
うかの判定は、光源からの光を第１の偏光板に照射して
行う。第１の偏光板に光源からの光が照射されると、第
１の偏光板を通過したが、旋光素子フィルムを通過せ
ず、旋光素子フィルムの外側を通過した光は第１の偏光
板の偏光方向に偏光された光が透過する。The determination as to whether the optical rotation element film is at a predetermined position is made by irradiating light from a light source to the first polarizing plate. When the light from the light source was applied to the first polarizing plate, the light passed through the first polarizing plate but did not pass through the optical rotation element film, and passed through the outside of the optical rotation element film. Light polarized in the polarization direction is transmitted.
【００１９】また、第１の偏光板も旋光素子フィルムも
通過した光は第１の偏光板で偏光方向に偏光され、さら
に旋光素子フィルムで９０°偏光方向が旋光される。な
お、第１の偏光板を通過せず、その内側を通過し、さら
に旋光素子フィルムを通過した光、あるいは、第１の偏
光板も旋光素子フィルムも通過せず、外側を通過した光
は、いずれの場合にも偏光はされずほとんど光量の減衰
はない。The light that has passed through both the first polarizing plate and the optical rotation element film is polarized in the polarization direction by the first polarizing plate, and is further rotated by the optical rotation element film in the 90 ° polarization direction. In addition, light that does not pass through the first polarizing plate, passes through the inside thereof, and further passes through the optical rotation element film, or light that passes through the outside without passing through the first polarizing plate nor the optical rotation element film, In each case, the light is not polarized and there is almost no attenuation of the light amount.
【００２０】従って、旋光素子フィルムの上方から第２
の偏光板を通して下方を見ると、第２の偏光板を、第１
の偏光板と偏光方向を同じ方向に配置した場合には、第
１の偏光板も旋光素子フィルムも通過した光は旋光素子
フィルムを通過した偏光と偏光方向が直交しているの
で、光が透過せず黒く見える（以下、黒色部分という）
が、第１の偏光板を通過し、旋光素子フィルムの外側を
通過した光は第２の偏光板の偏光方向と同じであるの
で、光量はかなり減衰しているが、透過する（以下、灰
色部分という）。この第１の偏光板を通過せず、第１の
偏光板の外側あるいは内側を通過した光は偏光されてな
いので、ほとんど光の減衰はなく（以下、透明部分とい
う）、３種類の輝度の異なる領域が視認され、黒色部分
と灰色部分が全周にわたり切れ目なく連なっていれば、
旋光素子フィルムのサイズも許容範囲であり、貼り付け
る位置も許容範囲内にあるので、そのまま旋光素子フィ
ルムを直下に移動させ、透明板状体に接着する。Therefore, the second from above the optical rotation element film
Looking down through the polarizing plate of the first, the second polarizing plate, the first
When the polarizing direction of the polarizing plate is arranged in the same direction as that of the polarizing plate, the light passing through both the first polarizing plate and the optical rotation element film is orthogonal to the polarized light passing through the optical rotation element film. Looks black without any color (hereinafter referred to as black part)
However, since the light passing through the first polarizing plate and passing outside the optical rotation element film has the same polarization direction as the second polarizing plate, the light amount is considerably attenuated, but is transmitted (hereinafter referred to as gray). Part). Light that has not passed through the first polarizing plate and has passed through the outside or inside of the first polarizing plate is not polarized, and therefore hardly attenuates the light (hereinafter referred to as a transparent portion) and has three types of luminance. If the different areas are visible and the black and gray parts are continuous without interruption,
Since the size of the optical rotation element film is also within the allowable range, and the position where the optical rotation element film is attached is also within the allowable range, the optical rotation element film is directly moved directly below and adhered to the transparent plate.
【００２１】また、いずれかの部分で黒く見える部分が
切れた状態にあると、切れた部分で旋光素子フィルムが
許容範囲の最小の外形をはみ出しており、灰色部分が切
れた状態にあると旋光素子フィルムが外側許容範囲の外
形をはみ出しており、不合格であるので、旋光素子フィ
ルムをさらに許容範囲になるように移動させて接着す
る。In addition, if a black portion is cut off in any of the portions, the optical rotation element film protrudes beyond the minimum allowable range at the cut portion, and if the gray portion is cut off, the optical rotation is lost. Since the element film protrudes outside the outer allowable range and is rejected, the optical rotation element film is further moved to be within the allowable range and bonded.
【００２２】また、第２の偏光板を、第１の偏光板と偏
光方向が同じ方向に配置した場合には、第１の偏光板も
旋光素子フィルムも通過した光は旋光素子フィルムを通
過した偏光と偏光方向が平行であるので、灰色部分とな
り、第１の偏光板を通過し、旋光素子フィルムの外側を
通過した光は第２の偏光板の偏光方向と直交しているの
で、黒色部分となり、灰色部分が切れ目なく連なってお
り、さらに黒色部分も切れ目なく連なっていれば、全周
にわたり許容範囲内にあり、合格である。When the second polarizing plate is arranged in the same polarization direction as the first polarizing plate, the light that has passed through both the first polarizing plate and the optical rotation element film has passed through the optical rotation element film. Since the polarized light and the polarization direction are parallel, it becomes a gray part, and the light passing through the first polarizing plate and passing through the outside of the optical rotation element film is orthogonal to the polarization direction of the second polarizing plate. If the gray part is continuous without interruption, and the black part is also continuous without interruption, it is within the permissible range over the entire circumference and the test is passed.
【００２３】第２の偏光板は、図２に示したように、ビ
デオカメラの前に付属させてその後画像処理装置で自動
的に処理すると好ましいが、偏光眼鏡で検査することも
可能である。The second polarizing plate is preferably attached to the front of the video camera and then automatically processed by an image processing device as shown in FIG. 2, but it is also possible to inspect it with polarized glasses.
【００２４】なお、第２の偏光板の偏光方向を第１の偏
光板の偏光方向と平行にするか、直交させるかについて
は、前述のようにどちらでも検査は可能であるが、平行
に配置すると、第１の偏光板と旋光素子フィルムの両方
を通過した部分が黒色部分となり、最も識別しやすく、
この部分の寸法を測定して傾向を把握し、前処理工程に
フィードバックすることも容易であるので、好ましい。As described above, it is possible to inspect whether the polarization direction of the second polarizing plate is parallel or orthogonal to the polarization direction of the first polarizing plate. Then, a portion passing through both the first polarizing plate and the optical rotation element film becomes a black portion, and is most easily distinguished,
This is preferable because it is easy to measure the dimensions of this part to grasp the tendency and feed it back to the pretreatment step.
【００２５】[0025]
【実施例】以下、図面を参照しながら、本発明を詳細に
説明する。図１は本発明の貼付装置の一部を示す概略斜
視図、図２は貼付装置の要部を示す一部断面図、図３は
押圧ロールの駆動装置を示す斜視図、図４は透明板状体
に旋光素子フィルムが貼着される状態を示す要部平面
図、図５と図６は第２の偏光板から旋光素子フィルム側
を透視したときの状態を示す要部平面図であり、図５が
第２の偏光板を第１の偏光板の偏光方向と平行に配設し
た場合、図６が第２の偏光板を第１の偏光板の偏光方向
と直交するように配設した場合を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view showing a part of the sticking device of the present invention, FIG. 2 is a partial cross-sectional view showing a main part of the sticking device, FIG. 3 is a perspective view showing a driving device for a pressing roll, and FIG. FIGS. 5 and 6 are plan views of main parts showing a state where the optical rotation element film is adhered to the shape, and FIGS. 5 and 6 show a state when the optical rotation element film side is seen through from the second polarizing plate; When FIG. 5 arranges the second polarizing plate in parallel with the polarization direction of the first polarizing plate, FIG. 6 arranges the second polarizing plate so as to be orthogonal to the polarization direction of the first polarizing plate. Show the case.
【００２６】キャリアフィルム上に所定間隔をおいて、
液晶状態でねじれネマティック配向し、液晶転移点以下
ではガラス状態となる液晶ポリマーなどの旋光素子フィ
ルム１を、自動車などの湾曲したウィンドシールドの車
外側板ガラスである透明板状体２の凹面側（中間膜側）
表面に両面接着テープにより貼着する場合について例示
する。At predetermined intervals on the carrier film,
The optical rotation element film 1 such as a liquid crystal polymer, which is twisted nematic in a liquid crystal state and becomes a glass state below the liquid crystal transition point, is placed on the concave side (intermediate side) of a transparent plate-like body 2 which is an outside plate glass of a curved windshield of an automobile or the like. Membrane side)
An example of the case of sticking to the surface with a double-sided adhesive tape will be described.
【００２７】旋光素子フィルム１は、例えば３０μｍ厚
さのポリエチレンテレフタレートなどの保護テープを兼
用するキャリアフィルム１1上に、アクリル系の樹脂フ
ィルム（図示せず）を介して貼り付けられ、さらに旋光
素子フィルム１の上にアクリル系の樹脂フィルム（図示
せず）、粘着剤層１2、ポリエチレンテレフタレートな
どの保護フィルム１3からなる５層のフィルムが所定間
隔をおいて積層されたキャリアフィルム１1を供給ロー
ルに巻いておく。The rotator film 1, for example, on the carrier film 1 1 also serves as a protective tape such as polyethylene terephthalate 30μm thick, attached via the resin film of the acrylic (not shown), further optical rotation element acrylic resin film on the film 1 (not shown), the adhesive layer 1 2, a carrier film 1 1 5 layer film consisting of the protective film 1 3 are stacked at predetermined intervals such as polyethylene terephthalate Wrap it around the supply roll.
【００２８】透明板状体２への旋光素子フィルム１の貼
着は図４の一点鎖線Ｓで示した基準の位置に配設される
べきであるが、実際にこの位置に正確に誤差なく取り付
けるのは困難であり、この基準位置Ｓより例えば１〜数
ｍｍ大きな外形ＳLとこの基準位置Ｓより例えば１〜数
ｍｍ小さな外形ＳSの範囲で許容されるので、許容範囲
の最大の外形ＳLと基準の位置Ｓより小さな許容範囲の
最小の外形ＳSの間（図の斜線部分）に旋光素子フィル
ムが貼着されていれば合格ということになる。The optical rotation element film 1 should be attached to the transparent plate 2 at a reference position indicated by a dashed line S in FIG. 4, but is actually attached to this position accurately and without error. it is difficult, because it is allowed in the range of the reference position S of, for example, 1 to several mm larger outer SL and to several example from the reference position S mm low profile S S, tolerance largest outline S L of If the optical rotation element film is affixed between (the hatched portion in the figure) and the minimum outer shape S S of the allowable range smaller than the reference position S, the result is acceptable.
【００２９】本発明の貼付装置の好ましい一例は、図１
に示すように、載置台３は、先端に支持台３1を有する
複数の昇降自在な支持棒３2を具備し、支持台３1を板ガ
ラスなどの透明板状体２の曲率に合致するように形成す
る。A preferred example of the sticking device of the present invention is shown in FIG.
As shown in, table 3 comprises a plurality of vertically movable support rod 3 2 having a support table 3 1 to the tip, the support table 3 1 to match the transparent plate-shaped object 2 of curvature, such as plate glass Formed.
【００３０】この場合に外側の支持棒は水平方向Ｘ軸、
Ｙ軸方向と上下方向Ｚ軸方向に自在に移動できるよう
に、また各支持台は支持棒との継ぎ手としてあらゆる方
向に回転できるように自在継ぎ手を介して接続すると透
明板状体の曲率に合致するようにできるので好ましい。In this case, the outer support rod is a horizontal X-axis,
When connected via a universal joint so that it can be freely moved in the Y-axis direction and the vertical direction and the Z-axis direction, and each support can be rotated in all directions as a joint with the support rod, it matches the curvature of the transparent plate. It is preferable because it can be performed.
【００３１】また、外側の３本支持棒に透明板状体２の
端面が当接する棒状のストッパー４を取り付けておく。
さらに、図２に示すように、前記透明板状体２が載置さ
れたときに該板状体の旋光素子フィルム１が貼着された
位置においてほぼ裏面から密着するように第１の偏光板
５を光源６とともに昇降自在の支持棒５1の先端に自在
継ぎ手などを介して配置する。A rod-shaped stopper 4 with which the end face of the transparent plate 2 abuts is attached to the three outer support rods.
Further, as shown in FIG. 2, when the transparent plate-like body 2 is mounted, the first polarizing plate is so adhered almost from the back surface at the position where the optical rotation element film 1 of the plate-like body is stuck. 5 arranged via a universal joint to the distal end of the support rod 5 first vertically movable together with the light source 6.
【００３２】第１の偏光板は、例えば偏光板を図３に示
すよう旋光素子フィルムの基準位置Ｓに対して最大許容
外形ＳLと最小許容外形ＳSにより形成される部分（斜線
部分）の幅に切り抜いて薄板ガラスあるいはポリエチレ
ンテレフタレートなどの透明基板に接着した構成とした
ものである。The first polarizing plate is, for example, a portion (shaded portion) formed of the maximum allowable outer shape SL and the minimum allowable outer shape S S with respect to the reference position S of the optical rotation element film as shown in FIG. It is configured to be cut out in width and adhered to a transparent substrate such as thin glass or polyethylene terephthalate.
【００３３】また、旋光素子フィルムの上方には、第１
の偏光板５と偏光方向が平行あるいは直交する第２の偏
光板７をビデオカメラ８の先端に装着して配置する。押
圧ロール９を駆動する装置は図３に示すように、フレー
ム１０にはレール１１が設けられ、さらに、電動機１
２’によって駆動されるベルト１２が設けられる。The first optical rotation element film has a first
The second polarizing plate 7 whose polarization direction is parallel or orthogonal to the polarizing plate 5 is mounted on the tip of the video camera 8 and disposed. As shown in FIG. 3, a device for driving the pressing roll 9 is provided with a rail 11 on a frame 10 and a motor 1.
A belt 12 driven by 2 'is provided.
【００３４】クロスバー１３は、両側にその先端部分が
フレームのレール１１に嵌合される一対の支持脚１４を
具備し、支持脚の一方にはベルト締め付け部材１５が固
着され、さらに自在継手１６を介して取付られるシリン
ダー１７と一対の取付板１８を具備する。The crossbar 13 has a pair of support legs 14 on both sides of which the tip portions are fitted to the rails 11 of the frame, and a belt tightening member 15 is fixed to one of the support legs. A cylinder 17 and a pair of mounting plates 18 are provided.
【００３５】取付板１８に軸支された一対の揺動板１９
には、シリンダー１７のロッド先端に固着される水平バ
ー２０の両端を固着し、さらに先端部分に太鼓形の押圧
ロール９を軸支する。A pair of rocking plates 19 pivotally supported by the mounting plate 18
, Both ends of a horizontal bar 20 fixed to the rod end of the cylinder 17 are fixed, and a drum-shaped pressing roll 9 is pivotally supported at the end.
【００３６】なお、押圧ロール９を駆動する装置以外に
も、電動機などで駆動され逆回転可能であり、旋光素子
フィルムなど５層のフィルムが所定間隔積層されたキャ
リアフィルムを巻回した供給ロール２１、キャリアフィ
ルムを巻き取り、逆回転可能な巻き取りロール２２、一
対の中間ロール２３、２３’と、保護フィルムを剥離す
るためのロボットアームの先端に吸着具２４を装着した
剥離装置（全体図示せず）を設けておく。In addition to the device for driving the pressing roll 9, a supply roll 21 wound around a carrier film, which is driven by an electric motor or the like and is rotatable in the reverse direction and has a five-layer film such as an optical rotation element film laminated at a predetermined interval. , A take-up roll 22 that can take up a carrier film and can rotate in the reverse direction, a pair of intermediate rolls 23 and 23 ′, and a peeling device having a suction device 24 attached to the tip of a robot arm for peeling the protective film (shown in whole). ) Is provided.
【００３７】以下にこのような装置を利用して旋光素子
フィルムを貼り付ける手順を説明する。まず、合わせ処
理を行う前の湾曲した板ガラスなどの板状体２を、透明
板状体の曲率に合致するように予め調整された載置台３
に載せ、３箇所のストッパー４に透明板状体の端面を当
接させることにより、透明板状体は基準の位置に載置さ
れる。このとき第１の偏光板も透明板状体の曲率に合致
するように高さなどを調整しておく。The procedure for attaching an optical rotation element film using such an apparatus will be described below. First, a plate-like body 2 such as a curved plate glass before performing the alignment process is placed on a mounting table 3 previously adjusted to match the curvature of the transparent plate-like body.
The transparent plate is placed at a reference position by contacting the end faces of the transparent plate with the three stoppers 4. At this time, the height and the like of the first polarizing plate are also adjusted so as to match the curvature of the transparent plate.
【００３８】この状態で、図示しない電動機を制御装置
により一定時間駆動させ、所定間隔をおいて旋光素子フ
ィルムが貼付されたキャリアフィルムを巻き取り、旋光
素子フィルムが剥離装置のところへ移送されたときに、
電動機を停止し、キャリアフィルムを静止させ、この状
態で剥離装置の吸着具を作動させて最上部の保護フィル
ム１３のみを吸着し、剥離させる。In this state, when a motor (not shown) is driven by the control device for a predetermined time, the carrier film on which the optical rotation element film is stuck is wound at a predetermined interval, and the optical rotation element film is transferred to the peeling device. To
The motor is stopped, the carrier film is stopped, and in this state, the suction tool of the peeling device is operated to suck only the uppermost protective film 13 and peel it.
【００３９】さらに電動機を駆動、キャリアフィルム１
1によって旋光素子フィルム１をほぼ所定の場所まで移
送し、その状態で光源６からの光を第１の偏光板５に照
射して、ＣＣＤカメラ８あるいは人の目によって旋光素
子フィルムが所定の許容範囲にあるかどうかを判定す
る。Further, the electric motor is driven, and the carrier film 1 is
The optical rotation element film 1 is transferred to a substantially predetermined place by 1 and the light from the light source 6 is irradiated on the first polarizing plate 5 in this state, and the optical rotation element film is set to a predetermined tolerance by the CCD camera 8 or human eyes. Determine if it is within range.
【００４０】光源６からの光を第１の偏光板５に照射す
ると、第１の偏光板５の偏光方向に従って偏光するが、
この光は旋光素子フィルムで９０°偏光方向を旋光され
て、第２の偏光板７に入射する。When the light from the light source 6 irradiates the first polarizing plate 5, the light is polarized according to the polarization direction of the first polarizing plate 5.
This light is rotated in the 90 ° polarization direction by the optical rotation element film, and is incident on the second polarizing plate 7.
【００４１】第２の偏光板７の上方から旋光素子フィル
ム１側をみると、第２の偏光板７を第１の偏光板５の偏
光方向と平行な偏光方向を持つように配置しておくと、
図４に示す第１の偏光板の斜線部分（偏光機能を有する
部分）と旋光素子フィルムを通過した光は、図５に示す
ように黒色（黒く塗りつぶした部分）になり、図４に示
す第１の偏光板の斜線部分は通ったが、旋光素子フィル
ムを通過せず、透明板状体に入射した光は図５に示すよ
うに灰色（斜線部分）となり、この黒色部分と灰色部分
が連続して連なっていれば許容範囲内にある。When the optical rotation element film 1 is viewed from above the second polarizing plate 7, the second polarizing plate 7 is arranged so as to have a polarization direction parallel to the polarization direction of the first polarizing plate 5. When,
The light passing through the hatched portion (portion having a polarizing function) of the first polarizing plate shown in FIG. 4 and the light passing through the optical rotation element film becomes black (portion painted black) as shown in FIG. Although the light passing through the hatched portion of the polarizing plate 1 did not pass through the optical rotation element film, the light incident on the transparent plate became gray (hatched portion) as shown in FIG. 5, and the black portion and the gray portion were continuous. If they are connected, they are within the allowable range.
【００４２】また、第２の偏光板７を第１の偏光板５の
偏光方向と直交するような偏光方向を持つように配置し
ておくと、図４に示す第１の偏光板の斜線部分（偏光機
能を有する部分）と旋光素子フィルムを通過した光は、
図６に示すように灰色（斜線部分）になり、図４に示す
第１の偏光板の斜線部分は通ったが、旋光素子フィルム
を通過せず、透明板状体に入射した光は図６に示すよう
に黒色（黒く塗りつぶした部分）となり、黒色部分と灰
色部分が連続して連なっていれば許容範囲内にある。When the second polarizing plate 7 is arranged so as to have a polarization direction orthogonal to the polarization direction of the first polarizing plate 5, a hatched portion of the first polarizing plate shown in FIG. (The part having the polarization function) and the light that has passed through the optical rotation element film,
As shown in FIG. 6, the light became gray (hatched portion) and passed through the hatched portion of the first polarizing plate shown in FIG. 4, but did not pass through the optical rotation element film and was incident on the transparent plate. As shown in (2), the color is black (the portion painted black), and if the black portion and the gray portion are continuously connected, it is within the allowable range.
【００４３】従って、ビデオカメラで旋光素子フィルム
を撮像して、図示しない画像処理装置などで濃淡の映像
を処理することにより、黒い部分と灰色部分が全周にわ
たり連なっていれば合格であり、その場合にはまずシリ
ンダを作動させてロッドを下降させる。Therefore, by taking an image of the optical rotation element film with a video camera and processing a dark and light image with an image processing device or the like (not shown), if the black portion and the gray portion are continuous over the entire circumference, the result is acceptable. In this case, first, the cylinder is operated to lower the rod.
【００４４】さらに 電動機１２’を図示しない制御装
置などにより一定時間駆動すると、ベルトが駆動し、ベ
ルト１２を締め付けている部材１５が連動して動くので
支持脚１４がレールに嵌合しながら水平方向に移動する
ので、先端の押圧ロールが旋光素子フィルムを押圧しな
がら貼付ることができる。Further, when the motor 12 'is driven for a certain period of time by a control device (not shown) or the like, the belt is driven, and the member 15 for tightening the belt 12 moves in conjunction therewith. , The pressing roll at the tip can apply while pressing the optical rotation element film.
【００４５】もし、これらの検査において、黒色部分あ
るいは灰色部分が連続せず途中で、例えば一辺にわたり
切れているときには、キャリアフィルムの進行方向前後
にずれていることが一般的であるので、旋光素子フィル
ムが行き過ぎているか、あるいは、許容範囲より手前に
あるかどうかを判断して、行き過ぎであれば、供給ロー
ルを逆回転（巻き取りロールをフリーの状態にして）さ
せて修正して、手前にある場合にはさらに巻き取りロー
ルを寸動させて修正して押圧ロールにより貼付ければよ
い。In these inspections, if the black portion or the gray portion is not continuous and is cut off, for example, over one side, it is common that the black portion or the gray portion is shifted in the front and rear direction of the carrier film. Determine if the film is too far or too far ahead of the allowable range. If it is too far, reverse the feed roll (with the take-up roll free) and correct it. In some cases, the take-up roll may be further slightly moved and corrected, and then applied by a pressing roll.
【００４６】[0046]
【発明の効果】本発明の貼付方法と貼付装置によれば、
従来長時間要していた旋光素子フィルムの貼付を所定の
場所に正確に、しかも迅速に行うことができる。According to the pasting method and the pasting apparatus of the present invention,
The optical rotation element film, which has conventionally been required for a long time, can be accurately and quickly attached to a predetermined place.
【図１】本発明の貼付装置を示す概略斜視図である。FIG. 1 is a schematic perspective view showing an attaching device of the present invention.
【図２】本発明の貼付装置の要部を示す一部断面図であ
る。FIG. 2 is a partial cross-sectional view showing a main part of the attaching device of the present invention.
【図３】押圧ロールの駆動装置を示す斜視図FIG. 3 is a perspective view showing a driving device of a pressing roll.
【図４】本発明において、透明板状体に旋光素子フィル
ムが所定の基準位置に貼着される状態を示す要部平面図
であり、Ｓが基準位置の外形、ＳLは許容範囲の最大の
外形ＳSは許容範囲の最小の外形を示す。In Figure 4 the present invention, a plan view showing a state where the rotator film on a transparent plate-shaped object is attached to a predetermined reference position, the outer shape of the S is the reference position, the maximum S L is the permissible range the outline S S indicates the minimum external shape tolerance.
【図５】第２の偏光板から旋光素子フィルム側を透視し
たときの状態を示す要部平面図であり、第２の偏光板を
第１の偏光板の偏光方向と平行に配設した場合を示す。FIG. 5 is a plan view of a principal part showing a state where the optical rotation element film side is seen through from a second polarizing plate, where the second polarizing plate is disposed in parallel with the polarization direction of the first polarizing plate. Is shown.
【図６】第２の偏光板から旋光素子フィルム側を透視し
たときの状態を示す要部平面図であり、第２の偏光板を
第１の偏光板の偏光方向と直交するように配設した場合
を示す。FIG. 6 is a plan view of a principal part showing a state in which the optical rotation element film side is seen through from a second polarizing plate, wherein the second polarizing plate is disposed so as to be orthogonal to the polarization direction of the first polarizing plate. The following shows the case.
１ 旋光素子フィルム １1 キャリアフィルム ２ 透明板状体 ３ 載置台 ４ ストッパー ５ 第１の偏光板 ６ 光源 ７ 第２の偏光板 ８ ビデオカメラ ９ 押圧ロール ２１ 供給ロール ２２ 巻き取りロール ２３、２３’ 中間ロール ２４ 吸着具Reference Signs List 1 optical rotation element film 1 1 carrier film 2 transparent plate 3 mounting table 4 stopper 5 first polarizing plate 6 light source 7 second polarizing plate 8 video camera 9 press roll 21 supply roll 22 take-up roll 23, 23 'middle Roll 24 suction tool
Claims (5)
を貼付する方法であって、該透明板状体を基準位置に配
設したときに、旋光素子フィルムが配設される基準位置
との許容範囲の最大と最小の外形の間を、第１の偏光板
によって偏光された光が通過するようにして、その状態
で保護フィルムを兼ねる連続したキャリアフィルム上に
所定間隔をおいて貼りつけられた旋光素子フィルムを前
記透明板状体の所定位置に供給し、第２の偏光板を通し
て旋光素子フィルムを透視することにより旋光素子フィ
ルムが所定の位置にあるかどうかを判定し、押圧ロール
によって貼付するようにしたことを特徴とする旋光素子
フィルムの貼付方法。1. A method for attaching an optical rotation element film to a predetermined position of a transparent plate-like body, wherein the transparent optical plate is disposed at a reference position, and a reference position where the optical rotation element film is provided is provided. The light polarized by the first polarizer passes between the maximum and minimum outer shapes of the allowable range, and is attached at a predetermined interval on a continuous carrier film also serving as a protective film in that state. The optical rotation element film is supplied to a predetermined position of the transparent plate-shaped body, and it is determined whether the optical rotation element film is at a predetermined position by seeing through the optical rotation element film through the second polarizing plate. A method for attaching an optical rotatory element film, wherein the method comprises attaching the optical rotation element film.
直交するように配設したことを特徴とする請求項１記載
の旋光素子フィルムの貼付方法。2. The method according to claim 1, wherein the polarizing directions of the first polarizing plate and the second polarizing plate are orthogonal to each other.
同じ向きになるように配設したことを特徴とする請求項
１記載の旋光素子フィルムの貼付方法。3. The method according to claim 1, wherein the polarizing directions of the first polarizing plate and the second polarizing plate are arranged in the same direction.
を貼付する装置であって、透明板状体の曲率にほぼ合致
するように支持し、位置決め用ストッパーを有する載置
台と、載置台の一部に、前記透明板状体が載置されたと
きに該板状体にほぼ裏面から密着するよう配置され、旋
光素子フィルムの基準位置最大外形と最小外形により形
成される部分を偏光するようにした第１の偏光板と、該
第１の偏光板の下方に配設した光源と、該第１の偏光板
の上方に配設した第２の偏光板と、所定間隔をおいて旋
光素子フィルムが貼りつけられた連続したキャリアフィ
ルムを巻き付けた供給ロールと該キャリアフィルムを巻
き取る巻き取りロールと上下水平方向に移動自在な押圧
ロールを少なくとも具備するようにしたことを特徴とす
る旋光素子フィルムの貼付装置。4. An apparatus for attaching an optical rotation element film to a predetermined position of a transparent plate-like body, wherein the mounting table is supported so as to substantially conform to the curvature of the transparent plate-like body and has a positioning stopper. When the transparent plate is placed on a part of the optical rotation element film, it is disposed so as to come into close contact with the plate substantially from the back surface, and polarizes a portion formed by the reference position maximum outer shape and the minimum outer shape of the optical rotation element film. The first polarizing plate, the light source provided below the first polarizing plate, and the second polarizing plate provided above the first polarizing plate, and the optical rotation at a predetermined interval. An optical rotation element comprising at least a supply roll wound around a continuous carrier film to which an element film is stuck, a winding roll for winding the carrier film, and a pressing roll movable vertically and horizontally. fill Of sticking apparatus.
成するとともに、第１の偏光板も昇降自在に構成したこ
とを特徴とする請求項４記載の旋光素子フィルムの貼付
装置。5. The apparatus according to claim 4, wherein the mounting table comprises a plurality of vertically movable support bars, and the first polarizing plate is also vertically movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25911696A JP3278133B2 (en) | 1996-09-30 | 1996-09-30 | Method and apparatus for attaching optical rotation element film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25911696A JP3278133B2 (en) | 1996-09-30 | 1996-09-30 | Method and apparatus for attaching optical rotation element film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10104425A true JPH10104425A (en) | 1998-04-24 |
| JP3278133B2 JP3278133B2 (en) | 2002-04-30 |
Family
ID=17329545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25911696A Expired - Fee Related JP3278133B2 (en) | 1996-09-30 | 1996-09-30 | Method and apparatus for attaching optical rotation element film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3278133B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005309371A (en) * | 2004-03-26 | 2005-11-04 | Fuji Photo Film Co Ltd | Optical film sticking apparatus and method |
-
1996
- 1996-09-30 JP JP25911696A patent/JP3278133B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005309371A (en) * | 2004-03-26 | 2005-11-04 | Fuji Photo Film Co Ltd | Optical film sticking apparatus and method |
| JP4620433B2 (en) * | 2004-03-26 | 2011-01-26 | 富士フイルム株式会社 | Optical film sticking apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3278133B2 (en) | 2002-04-30 |
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