JP2001347220A - Method for manufacturing polymer film sheet, manufacturing equipment and polymer film sheet for optics - Google Patents
Method for manufacturing polymer film sheet, manufacturing equipment and polymer film sheet for opticsInfo
- Publication number
- JP2001347220A JP2001347220A JP2000168019A JP2000168019A JP2001347220A JP 2001347220 A JP2001347220 A JP 2001347220A JP 2000168019 A JP2000168019 A JP 2000168019A JP 2000168019 A JP2000168019 A JP 2000168019A JP 2001347220 A JP2001347220 A JP 2001347220A
- Authority
- JP
- Japan
- Prior art keywords
- polymer film
- film sheet
- roll
- polymer
- ultraviolet light
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高分子フィルムシ
ートの製造方法に於いて、任意の凹凸面を成形した高分
子フィルムシートを効率良く製造する方法と、これを製
造する装置、並びにこれを用いて製造した光学用高分子
フィルムシートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for efficiently producing a polymer film sheet having an arbitrary uneven surface, an apparatus for producing the same, and an apparatus for producing the same. The present invention relates to an optical polymer film sheet manufactured by using the method.
【０００２】[0002]
【従来の技術】薄型軽量な表示装置として、液晶表示素
子が種々の機器に使用されている。液晶表示素子には、
偏光フィルム、位相差フィルム、マイクロプリズムシー
ト等の種々の高分子フィルムシートが使用されている。
さらに最近では、より軽量で割れにくい液晶表示素子を
製造するために、透明電極基板に光学用高分子フィルム
シートを用いて液晶表示素子を作製することも行われて
いる。これらのうち、マイクロプリズムシートには、プ
リズムの役となる微細な凹凸が設けられている。また、
偏光板においても微細なプリズム状の形状を形成して偏
光の分離を行う方法が提案されている。さらに、透明電
極基板についても、微細な凹凸形状を形成して液晶の配
向を制御することが提案されている。2. Description of the Related Art As a thin and lightweight display device, a liquid crystal display device is used for various devices. Liquid crystal display elements include
Various polymer film sheets such as a polarizing film, a retardation film, and a micro prism sheet are used.
More recently, in order to manufacture a lighter and less crackable liquid crystal display device, a liquid crystal display device is also manufactured using a polymer film sheet for optical use as a transparent electrode substrate. Of these, the micro prism sheet is provided with fine irregularities serving as a prism. Also,
There has been proposed a method of separating polarized light by forming a fine prismatic shape also on a polarizing plate. Further, with respect to a transparent electrode substrate, it has been proposed to form fine irregularities to control the orientation of liquid crystal.
【０００３】上記のような微細な凹凸を成形する方法と
しては凹凸を有する金型に液状の紫外線硬化性樹脂組成
物を流延し紫外線を照射することや、液状の熱硬化性樹
脂を基材上に塗布した後に凹凸を有する金型を圧着しな
がら加熱硬化する方法が用いられている。しかし、この
ような枚葉処理の方法は生産性が低いという問題があ
る。[0003] As a method of forming the fine irregularities as described above, a liquid ultraviolet curable resin composition is cast on a mold having irregularities and irradiated with ultraviolet rays, or a liquid thermosetting resin is used as a base material. A method has been used in which after being coated on the surface, a mold having irregularities is heated and cured while being pressed. However, such a single-wafer processing method has a problem that productivity is low.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的とすると
ころは、微細な凹凸を有する、液晶表示素子用基板等の
光学用高分子フィルムシートとして優れた特性を持つ高
分子フィルムシートを効率よく連続生産可能である製造
方法、製造装置と、本方法に適した樹脂を用いることに
より前記特性の良好な光学用高分子フィルムシートおよ
び液晶表示素子向け透明電極基板用高分子フィルムシー
トを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to efficiently provide a polymer film sheet having fine irregularities and having excellent characteristics as an optical polymer film sheet such as a substrate for a liquid crystal display device. To provide a production method and a production apparatus capable of continuous production, and a polymer film sheet for an optical element and a polymer film sheet for a transparent electrode substrate for a liquid crystal display element having excellent characteristics by using a resin suitable for the method. It is in.
【０００５】[0005]
【課題を解決するための手段】本発明は、（１）高分子
フィルムシート原反上に紫外線硬化性樹脂組成物を塗布
またはラミネートし、該紫外線硬化性樹脂組成物が軟化
した状態で凹凸の形状を有するロールに密着させて紫外
線を照射し、ロール凹凸面を転写、成形する高分子フィ
ルムシートの製造方法、（２）該平滑面を有するロール
が中空の紫外線を透過する透明ロールであり、ロール中
に紫外線光源を有するものである第（１）項記載の高分
子フィルムシートの製造方法、（３）該高分子フィルム
シート原反が紫外線を透過する透明なフィルムシート原
反であり、ロールに密着させた状態で高分子フィルムシ
ート原反のロール接触面の反対側から紫外線を照射する
第（１）項記載の高分子フィルムシートの製造方法、
（４）凹凸面を有し中空である紫外線を透過する透明ロ
ールと、該透明ロール中空部に紫外線光源が設置されて
いる紫外線露光部を有する高分子フィルムシートの製造
装置、（５）第（１）〜（３）いずれか記載の高分子フ
ィルムシートの製造方法を用いて製造した光学用高分子
フィルムシート、（６）高分子がポリエーテルスルホン
である第（５）項記載の光学用高分子フィルムシート、
（７）第（５）項記載の光学用高分子フィルムシートを
用いた透明電極基板用高分子フィルムシート、（８）高
分子がポリエーテルスルホンである第（７）項記載の透
明電極基板用高分子フィルムシート、である。According to the present invention, there is provided (1) a method of applying or laminating an ultraviolet-curable resin composition on a raw polymer film sheet, and forming an uneven surface of the ultraviolet-curable resin composition in a softened state. A method for producing a polymer film sheet in which ultraviolet light is irradiated while being in close contact with a roll having a shape, and the uneven surface of the roll is transferred and formed, (2) the roll having a smooth surface is a transparent roll that transmits hollow ultraviolet light, (1) The method for producing a polymer film sheet according to (1), wherein the roll has an ultraviolet light source in the roll. (3) The raw material of the polymer film sheet is a transparent film sheet that transmits ultraviolet light. (1) The method for producing a polymer film sheet according to (1), wherein ultraviolet light is irradiated from the opposite side of the roll contact surface of the raw material of the polymer film sheet in a state of being in close contact with the polymer film sheet.
(4) An apparatus for producing a polymer film sheet having a hollow transparent roll having an uneven surface and transmitting ultraviolet light, and an ultraviolet light exposure section having an ultraviolet light source installed in the hollow part of the transparent roll; (1) The polymer film sheet for optics produced by using the method for producing a polymer film sheet according to any one of (1) to (3), (6) the optical polymer film sheet according to (5), wherein the polymer is polyether sulfone. Molecular film sheet,
(7) A polymer film sheet for a transparent electrode substrate using the polymer film sheet for optical use according to (5), (8) a polymer film sheet for a transparent electrode substrate according to (7), wherein the polymer is polyether sulfone. Polymer film sheet.
【０００６】[0006]
【発明の実施の形態】本発明の製造方法および製造装置
を用いることにより、高分子フィルムシートに連続的に
微細な凹凸を成形することにより、効率的に光学用高分
子フィルムシートを製造することが可能である。特に液
晶表示素子向け透明電極基板を高分子フィルムシートで
作る場合は、枚葉処理で作らざるを得ないガラス製基板
に対して、ロール・ツー・ロールでの連続加工が可能で
あるという高分子フィルムの特徴を活かすことができ
る。さらに、透明電極基板とプリズムシートを１枚で兼
用する高分子フィルムシートを製造することも可能にな
り、結果として高分子フィルムシートを透明電極基板に
用いた液晶表示素子を、より効率よく製造することがで
きる。BEST MODE FOR CARRYING OUT THE INVENTION By using the manufacturing method and the manufacturing apparatus of the present invention, a polymer film sheet for optical is efficiently manufactured by continuously forming fine irregularities on the polymer film sheet. Is possible. In particular, when a transparent electrode substrate for a liquid crystal display device is made of a polymer film sheet, a polymer that can be roll-to-roll continuously processed on a glass substrate that must be made by single-wafer processing The characteristics of the film can be utilized. Further, it becomes possible to manufacture a polymer film sheet in which a single transparent electrode substrate and a single prism sheet are used. As a result, a liquid crystal display device using the polymer film sheet for the transparent electrode substrate can be manufactured more efficiently. be able to.
【０００７】本発明中の高分子フィルムシート原反とし
て使用される高分子の例を挙げると、ポリエステル、ポ
リスルホン、ポリエーテルスルホン、ポリエーテルケト
ン、ポリエーテルエーテルケトン、ポリイミド、ポリア
ミドイミド、ポリカーボネート、エポキシ樹脂、アクリ
ル樹脂、ノルボルネン系高分子及びこれをブレンドした
樹脂等をあげることができるがこれらに限定されるもの
ではない。中でも液晶表示素子製造上、透明性、耐熱
性、加工性、耐衝撃性のバランスの良いポリエーテルス
ルホンが特に好ましい。高分子フィルムシート原反の厚
みは、１０μｍ以上５００μｍ以下が好ましく、更に好
ましくは５０μｍ以上４００μｍ以下である。高分子フ
ィルムシートの厚みが１０μｍ未満であると切れやすく
取り扱いが困難であり、又、液晶表示素子の基板間隔の
保持が難しく、５００μｍを越えるとロールへの密着が
困難となる。Examples of polymers used as the raw material of the polymer film sheet in the present invention include polyester, polysulfone, polyethersulfone, polyetherketone, polyetheretherketone, polyimide, polyamideimide, polycarbonate, epoxy Examples include, but are not limited to, resins, acrylic resins, norbornene-based polymers, and resins blended therewith. Among them, polyether sulfone, which has a good balance of transparency, heat resistance, workability, and impact resistance, is particularly preferable in the production of liquid crystal display elements. The thickness of the raw polymer film sheet is preferably from 10 μm to 500 μm, and more preferably from 50 μm to 400 μm. If the thickness of the polymer film sheet is less than 10 μm, it will be easy to cut and it will be difficult to handle. Also, if the thickness of the polymer film sheet exceeds 500 μm, it will be difficult to adhere to a roll.
【０００８】本発明で用いられる紫外線硬化性樹脂組成
物の例を挙げると、アクリレート化合物等を主成分とし
た液状の紫外線硬化性樹脂組成物やエポキシ樹脂や不飽
和ポリエステル樹脂を主成分としたシート状の紫外線硬
化性樹脂組成物等である。前者の場合は塗布装置により
高分子フィルムシート原反上に塗布し、溶剤を含む場合
には乾燥装置により溶剤を揮発させ、後者の場合には高
分子フィルムシート原反上にラミネートする。Examples of the UV-curable resin composition used in the present invention include a liquid UV-curable resin composition containing an acrylate compound as a main component and a sheet containing an epoxy resin or an unsaturated polyester resin as a main component. UV curable resin composition and the like. In the former case, the solution is applied onto the raw polymer film sheet by a coating device, and when a solvent is contained, the solvent is volatilized by a drying device, and in the latter case, the film is laminated on the raw polymer film sheet.
【０００９】本発明において表面に紫外線硬化性樹脂組
成物を有した高分子フィルムシートを表面に凹凸の形状
を有するロールに密着させる際には、その凹凸が十分に
紫外線硬化性樹脂組成物表面に転写されるよう、紫外線
硬化性樹脂組成物は軟化または液化していなければなら
ない。紫外線硬化性樹脂組成物には、溶剤を含まなくて
も室温で軟化しているものや液状のものも有るが、そう
でない場合は密着する前にヒーター等により加熱を行う
か、平滑面を有するロールを加熱しておき密着と同時に
軟化させることが必要である。密着させる方法として
は、ニップロールや帯電固定等の方法が挙げられるがこ
れらに限定されるものではない。In the present invention, when a polymer film sheet having an ultraviolet-curable resin composition on its surface is brought into close contact with a roll having an uneven surface, the irregularities are sufficiently formed on the surface of the ultraviolet-curable resin composition. The UV curable resin composition must be softened or liquefied to be transferred. UV-curable resin compositions include those that are softened at room temperature or liquid even without a solvent, but if not, they are heated by a heater or the like before they adhere, or have a smooth surface. It is necessary to heat the roll and soften it at the same time as the adhesion. Examples of a method for bringing the adhesive into close contact include a method such as a nip roll and a charge fixing, but are not limited thereto.
【００１０】本発明において表面に紫外線硬化性樹脂組
成物を有した高分子フィルムシートを密着させる表面に
凹凸の形状を有するロールは、製品として得る高分子フ
ィルムシートの凸部に対応する凹部を形成したものであ
る。凹部を形成したロールは石英ガラス管や金属ロール
の表面にフォトリソグラフィー等によりパターンをエッ
チングすることで製造できる。In the present invention, the roll having the uneven shape on the surface to which the polymer film sheet having the ultraviolet curable resin composition is adhered forms the concave portion corresponding to the convex portion of the polymer film sheet obtained as a product. It was done. The roll having the concave portion can be manufactured by etching a pattern on the surface of a quartz glass tube or a metal roll by photolithography or the like.
【００１１】本発明において表面に凹凸の形状を有する
ロールとして石英ガラス管等のように紫外線を透過する
透明な中空ロールを用いることにより、ロール内部に高
圧水銀灯等の紫外線光源を設置することにより紫外線硬
化性樹脂組成物を硬化させることができ、これによりロ
ール凹凸面を転写した状態で高分子フィルムシート原反
上の紫外線硬化性樹脂層を硬化して凹凸面を成形した高
分子フィルムシートを製造することができる。In the present invention, a transparent hollow roll that transmits ultraviolet light, such as a quartz glass tube, is used as a roll having an irregular surface on the surface, and an ultraviolet light source such as a high-pressure mercury lamp is installed inside the roll. The curable resin composition can be cured, thereby producing a polymer film sheet in which the UV curable resin layer on the raw polymer film sheet is cured in a state where the concave and convex surface of the roll is transferred to form the concave and convex surface. can do.
【００１２】本発明において表面に凹凸の形状を有する
ロールとしてクロムメッキロール、ステンレスロール等
の不透明なものを用いる場合、高分子フィルムシート原
反として紫外線を透過するものを用い、紫外線硬化性樹
脂組成物を有した面と反対の面から紫外線を照射するこ
とにより、前記と同様に表面が平滑な高分子シートを製
造することができる。この場合、高分子シート原反に使
用できるものは透明性を有するものに限られるが、多く
の高分子シートは透明性を有するものであり、この方法
についても産業上極めて有用なものである。以上のよう
にして製造される光学用高分子フィルムシートは、液晶
表示素子向け透明基板用やプリズムシート等として有用
なものである。In the present invention, when an opaque roll such as a chromium-plated roll or a stainless steel roll is used as the roll having an irregular surface on the surface, a raw material that transmits ultraviolet light is used as the raw material of the polymer film sheet, and the ultraviolet curable resin composition is used. By irradiating ultraviolet rays from the surface opposite to the surface having the object, a polymer sheet having a smooth surface can be produced in the same manner as described above. In this case, what can be used as the raw polymer sheet is limited to those having transparency. However, many polymer sheets have transparency, and this method is industrially extremely useful. The optical polymer film sheet manufactured as described above is useful as a transparent substrate for a liquid crystal display device, a prism sheet, or the like.
【００１３】[0013]
【実施例】以下本発明を実施例、比較例、図面によって
説明するが、本発明は実施例により何ら限定されるもの
ではない。 高分子フィルムシートの光学的物性は次の方法により評
価した。 （１）厚み 接触式ダイヤルゲージで高分子シートの幅方向に２０ｍ
ｍ間隔で測定した平均値。 （２）高分子フィルムシートの表面の形状 非接触式３次元表面形状解析顕微鏡（Zygo製、New View
5030）によりフィルムシート幅方向に中央部および左
右に１００ｍｍ離れた点の計３点を、１．５ｍｍ×１．
０ｍｍの視野で観察。 （３）ロール面の形状 （株）ミツトヨ製接触式表面粗さ計により、ロールの幅
方向に中央部および左右に１００ｍｍ離れた点の計３点
を長さ１．０ｍｍにて測定したときの測定チャートを観
察。The present invention will be described below with reference to examples, comparative examples, and drawings, but the present invention is not limited to the examples. The optical properties of the polymer film sheet were evaluated by the following methods. (1) Thickness 20 m in the width direction of the polymer sheet using a contact dial gauge
Average value measured at m intervals. (2) Surface shape of polymer film sheet Non-contact 3D surface shape analysis microscope (Zygo, New View
5030), a total of three points, which are 100 mm apart in the center and in the left and right direction in the width direction of the film sheet, are calculated as 1.5 mm × 1.
Observed in a 0 mm visual field. (3) Shape of Roll Surface When a contact type surface roughness meter manufactured by Mitutoyo Corp. measured a total of three points at a central portion in the width direction of the roll and at a distance of 100 mm left and right with a length of 1.0 mm. Observe the measurement chart.
【００１４】《実施例１》厚さ２００μｍ幅４００ｍｍ
のポリエーテルスルホンを高分子フィルムシート原反と
して用い、巻出装置、コーター部、加熱乾燥ゾーン、内
部に高圧水銀灯を有する表面に凹凸を有する中空石英ガ
ラスロール、巻取装置を有する製造装置を用いて次の加
工を行った。まず、紫外線硬化性樹脂組成物として分子
量１５４０融点７０℃のエポキシアクリレートプレポリ
マー（昭和高分子製、ＶＲ−６０）１００重量部、酢酸
ブチル３００重量部，セロソルブアセテート１００重量
部，ベンゾインエチルエーテル２重量部を５０℃にて撹
拌、溶解して均一な溶液としたものをコーター部のグラ
ビヤロールコーターで乾燥前膜厚２０μｍで塗布し、加
熱乾燥ゾーン中１５０℃で５分間加熱して溶媒を除去し
た。溶媒除去後の紫外線硬化性樹脂組成物はペースト状
の軟化状態であった。続いて図１に示したように、ゴム
製ニップロール（１）を用いて、直径３００ｍｍで、表
面に周方向に幅０．３μｍ深さ０．２μｍである溝を全
面に成形した内部に８０ｗ／ｃｍの高圧水銀灯（３）を
有する中空石英ガラスロール（２）に密着させて紫外線
を照射して紫外線硬化性樹脂組成物を硬化させ、巻取装
置で巻き取って高分子シート（６）を連続的に得た。紫
外線の照射時間は４０秒間であった。得られた高分子フ
ィルムのロール面に接した面の形状を観察したところ、
ロール表面形状を転写したものであった。次に、この高
分子フィルムを５０ｃｍ×５０ｃｍのシートに切断し、
ロール表面形状を転写した側に、ＤＣマグネトロン法に
より、初期真空度３×１０-4Ｐａの状態から酸素／アル
ゴンガス９％の混合ガスを導入して３×１０-1Ｐａの条
件下においてスパッタリングを行い５００Å厚のＳｉＯ
２を得た。続いて、透明導電膜として、同じくＤＣマグ
ネトロン法により初期真空度３×１０-4Ｐａの状態から
酸素／アルゴンガス４％の混合ガスを導入して１×１０
-1Ｐａの条件下においてスパッタリングを行いＩｎ／
（Ｉｎ＋Ｓｎ）の原子比が０．９８である酸化インジウ
ム錫（ＩＴＯ）からなる透明導電膜を得た。測定の結
果、膜厚は１６００Å、非抵抗は４×１０-4Ω−ｃｍで
あった。ＩＴＯを成膜後、レジストを塗布して現像し、
エッチング液として１０ｖｏｌ％ＨＣＬ、液温４０℃中
でパターンエッチングし、対角長さ３インチ、Ｌ／Ｓ＝
１５０／５０μｍの表示パターンを形成した。パターン
形成後、短絡防止のトップコートを塗布・硬化して成膜
した。配向膜は成膜せずに、一方の基板にはスペーサー
を散布し、他方にはシール材を塗布し、基板の凹凸パタ
ーンが直交するようにはり合わせて１３０℃でシール材
を硬化させてセル化し、ＴＮ用液晶組成物を加熱して等
方性状態で注入した。室温まで徐冷後、偏光板をコント
ラストの最大となる位置に貼り合わせて液晶表示素子を
作製した。この液晶表示素子を駆動電圧０Ｖから±５Ｖ
で点灯試験を行ったところ、液晶の配向異常による表示
ムラは見られず良好な表示を示した。Example 1 200 μm thick 400 mm wide
Using a polyethersulfone as a raw material of a polymer film sheet, using an unwinding device, a coater, a heating and drying zone, a hollow quartz glass roll having a high-pressure mercury lamp inside, a hollow quartz glass roll having irregularities on the surface, and a manufacturing device having a winding device. The following processing was performed. First, as an ultraviolet curable resin composition, 100 parts by weight of an epoxy acrylate prepolymer having a molecular weight of 1540 and a melting point of 70 ° C. (VR-60, manufactured by Showa Polymer), 300 parts by weight of butyl acetate, 100 parts by weight of cellosolve acetate, 2 parts by weight of benzoin ethyl ether The resulting solution was stirred at 50 ° C. and dissolved to form a uniform solution. The solution was coated with a gravure roll coater at a coater thickness of 20 μm before drying, and heated in a heating and drying zone at 150 ° C. for 5 minutes to remove the solvent. . After removing the solvent, the ultraviolet-curable resin composition was in a paste-like softened state. Subsequently, as shown in FIG. 1, a rubber nip roll (1) was used to form a groove having a diameter of 300 mm and a width of 0.3 μm and a depth of 0.2 μm in the circumferential direction on the entire surface. cm of a high-pressure mercury lamp (3), and a UV-curable resin composition is hardened by irradiating ultraviolet rays to the polymer sheet (6). I got it. The irradiation time of the ultraviolet rays was 40 seconds. Observing the shape of the surface in contact with the roll surface of the obtained polymer film,
The roll surface shape was transferred. Next, this polymer film is cut into a 50 cm × 50 cm sheet,
On the side where the roll surface shape is transferred, a mixed gas of oxygen / argon gas 9% is introduced from a state of an initial vacuum degree of 3 × 10 −4 Pa by a DC magnetron method, and sputtering is performed under a condition of 3 × 10 −1 Pa. And a 500 mm thick SiO
2 was obtained. Subsequently, as a transparent conductive film, a mixed gas of oxygen / argon gas 4% was introduced from a state of an initial vacuum degree of 3 × 10 −4 Pa by the DC magnetron method to obtain 1 × 10 4
Sputtering under the condition of -1 Pa
A transparent conductive film made of indium tin oxide (ITO) having an atomic ratio of (In + Sn) of 0.98 was obtained. As a result of the measurement, the film thickness was 1600 ° and the non-resistance was 4 × 10 −4 Ω-cm. After forming ITO film, apply resist and develop,
Pattern etching was performed at 10 vol% HCL as an etchant at a liquid temperature of 40 ° C., diagonal length 3 inches, L / S =
A display pattern of 150/50 μm was formed. After pattern formation, a top coat for preventing short circuit was applied and cured to form a film. Without forming an alignment film, a spacer is sprayed on one of the substrates, a sealing material is applied to the other, and the sealing material is cured at 130 ° C. by bonding together so that the concavo-convex pattern of the substrates is orthogonal to each other. The TN liquid crystal composition was heated and injected in an isotropic state. After slowly cooling to room temperature, a polarizing plate was bonded to a position where the contrast was maximized to produce a liquid crystal display device. This liquid crystal display device is driven from 0 V to ± 5 V
As a result of the lighting test, good display was exhibited without any display unevenness due to abnormal alignment of the liquid crystal.
【００１５】《実施例２》厚さ１００μｍ幅４００ｍｍ
のポリカーボネートを用い、巻出装置、コーター部、加
熱乾燥ゾーン、直径４００ｍｍの表面に凹凸を有するク
ロムメッキロールとこのロール面に向けて照射を行う８
０ｗ／ｃｍの出力の高圧水銀灯、巻取装置を有する製造
装置を用いて次の加工を行った。まず、実施例１と同様
にして紫外線硬化性樹脂組成物の塗布〜乾燥を行った。
続いてゴム製ニップロールを用いて温度を５０℃に制御
した表面に周方向に５０μｍ×５０μｍ×深さ２０μｍ
である四角錐型の溝を全面に成形した直径４００ｍｍの
クロムメッキロール面に密着させて８０ｗ／ｃｍの出力
の高圧水銀灯で紫外線硬化性樹脂組成物の塗布面と逆の
面から紫外線を照射して紫外線硬化性樹脂組成物を硬化
させ、巻取装置で巻き取って高分子シートを連続的に得
た。紫外線の照射時間は３０秒間であった。得られた高
分子フィルムのロール面に接した面の形状を観察したと
ころ、ロール表面形状を転写したものであった。この高
分子フィルムを透過型液晶表示素子の裏面に組み込んだ
所、正面から見たときの表示が、高分子フィルムを組み
込まないときより明るくなった。<< Example 2 >> thickness 100 μm width 400 mm
Using a polycarbonate, an unwinder, a coater, a heating and drying zone, a chrome plating roll having a surface with irregularities of 400 mm in diameter, and irradiating the roll surface 8
The following processing was performed using a manufacturing apparatus having a high-pressure mercury lamp having an output of 0 w / cm and a winding device. First, coating and drying of the ultraviolet-curable resin composition were performed in the same manner as in Example 1.
Subsequently, 50 μm × 50 μm × depth 20 μm was formed in the circumferential direction on the surface whose temperature was controlled at 50 ° C. using a rubber nip roll.
A square pyramid-shaped groove, which is formed on the entire surface, is closely adhered to the surface of a chrome plating roll having a diameter of 400 mm, and ultraviolet rays are irradiated from the surface opposite to the surface on which the ultraviolet-curable resin composition is applied by a high-pressure mercury lamp having an output of 80 w / cm. The ultraviolet curable resin composition was cured by using the same, and was wound up by a winding device to continuously obtain a polymer sheet. The irradiation time of the ultraviolet rays was 30 seconds. Observation of the shape of the surface of the obtained polymer film in contact with the roll surface revealed that the roll surface shape was transcribed. When this polymer film was incorporated into the rear surface of the transmissive liquid crystal display element, the display when viewed from the front was brighter than when the polymer film was not incorporated.
【００１６】《比較例１》実施例１において、巻出装
置、コーター部、加熱乾燥ゾーン、内部に高圧水銀灯を
有する中空石英ガラスロール、巻取装置を有する製造装
置の代わりに、巻出装置、コーター部、加熱乾燥ゾー
ン、塗布を行う側の面に紫外線を照射する高圧水銀灯、
巻取装置を有する製造装置を用い、内部に高圧水銀灯を
有する中空石英ガラスロールに密着させずに紫外線硬化
性樹脂組成物の塗布面側から８０ｗ／ｃｍの高圧水銀灯
で４０秒間紫外線を照射した以外は実施例１と同様に加
工を行い高分子シートを連続的に得た。得られた高分子
シートの紫外線硬化性樹脂組成物塗布面を観察したとこ
ろ、Ｒｍａｘ０．２μｍ程度の表面粗さを持つ平坦面で
あった。以下実施例と同様にして液晶表示素子を作成し
た。この液晶表示素子を駆動電圧０Ｖから±５Ｖで点灯
試験を行ったところ、電圧が０Ｖに近い側で液晶の配向
異常による表示ムラが見られた。Comparative Example 1 In Example 1, instead of the unwinding device, the coater section, the heating and drying zone, the hollow quartz glass roll having a high-pressure mercury lamp therein, and the manufacturing device having the winding device, an unwinding device was used. A high-pressure mercury lamp that irradiates the coater part, the heating drying zone, and the surface on the coating side with ultraviolet light,
Using a manufacturing apparatus having a winding device, except that the ultraviolet-curable resin composition was irradiated with ultraviolet light for 40 seconds with a high-pressure mercury lamp of 80 w / cm from the application surface side without being in close contact with a hollow quartz glass roll having a high-pressure mercury lamp inside. Was processed in the same manner as in Example 1 to continuously obtain a polymer sheet. Observation of the surface of the obtained polymer sheet on which the ultraviolet curable resin composition was applied was a flat surface having a surface roughness of about Rmax 0.2 μm. Thereafter, a liquid crystal display device was prepared in the same manner as in the example. When a lighting test was performed on this liquid crystal display element at a drive voltage of 0 V to ± 5 V, display unevenness due to abnormal liquid crystal alignment was observed on the side where the voltage was close to 0 V.
【００１７】実施例１および２で製造した高分子シート
を用いて作製した液晶表示素子はいずれも良好な表示を
示した。即ち、実施例１および２では平滑性の良好な光
学用高分子シートを得ることができた。これに対して比
較例では凹凸面を有するロールに密着させずに紫外線を
照射して紫外線硬化性樹脂を硬化したために通常の平坦
面を持つ高分子シートしか得られなかったため、配向制
御を行うことができずに液晶表示素子を作製した場合に
は表示ムラを発生した。Each of the liquid crystal display devices manufactured using the polymer sheets manufactured in Examples 1 and 2 showed good display. That is, in Examples 1 and 2, an optical polymer sheet having good smoothness could be obtained. On the other hand, in the comparative example, since the ultraviolet curable resin was cured by irradiating ultraviolet rays without being brought into close contact with the roll having the uneven surface, only a polymer sheet having a normal flat surface was obtained. When a liquid crystal display element was produced without performing the above, display unevenness occurred.
【００１８】[0018]
【発明の効果】本発明の製造方法及び製造装置を用いる
ことにより、凹凸により機能を発揮する光学用高分子フ
ィルムシートを安定して、効率よく連続製造することが
できる。また、本発明により得られたフィルムシートは
光学用高分子フィルムシートとして最適で、液晶表示素
子用透明電極基板として液晶表示素子を作製した場合、
ガラス基板に比べて軽く割れにくいだけでなく製造工程
を短縮可能であり、さらに表示ムラのない良好な表示を
示した。By using the manufacturing method and the manufacturing apparatus of the present invention, it is possible to stably and efficiently manufacture an optical polymer film sheet exhibiting a function by unevenness. Further, the film sheet obtained by the present invention is most suitable as a polymer film sheet for optics, and when a liquid crystal display device is manufactured as a transparent electrode substrate for a liquid crystal display device,
Not only was the glass substrate lighter and harder to break than the glass substrate, the manufacturing process could be shortened, and good display without display unevenness was exhibited.
【図１】実施例１で用いた製造装置の一部の断面の概略
図FIG. 1 is a schematic diagram of a cross section of a part of a manufacturing apparatus used in Example 1.
１．・・・ゴム製ニップロール ２．・・・表面に凹凸を有する中空石英ガラスロール ３．・・・高圧水銀灯（ウォータージャケット付） ４．・・・反射板 ５．・・・剥離用ロール ６．・・・高分子シート 1. ... Rubber nip rolls ... Hollow quartz glass roll having irregularities on its surface ... High pressure mercury lamp (with water jacket) ... Reflector plate ... Roller roll 6 ... Polymer sheets
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｊ 7/04 ＣＥＺ Ｃ０８Ｊ 7/04 ＣＥＺＺ Ｇ０２Ｆ 1/1333 ５００ Ｇ０２Ｆ 1/1333 ５００ // Ｂ２９Ｋ 81:00 Ｂ２９Ｋ 81:00 101:10 101:10 Ｂ２９Ｌ 7:00 Ｂ２９Ｌ 7:00 11:00 11:00 Ｃ０８Ｌ 81:06 Ｃ０８Ｌ 81:06 Ｆターム(参考） 2H090 JA02 JB03 JC03 JC07 KA05 LA01 LA02 4D075 AC43 BB06X BB46Z CA47 DA04 DB44 DC22 EA05 EA21 4F006 AA40 AB34 AB42 AB43 BA15 CA05 DA04 EA03 4F204 AA44 AD05 AD08 AG03 AH33 EA03 EB02 EB13 EF23 EK03 EK17 EK18 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08J 7/04 CEZ C08J 7/04 CEZZ G02F 1/1333 500 G02F 1/1333 500 // B29K 81:00 B29K 81:00 101: 10 101: 10 B29L 7:00 B29L 7:00 11:00 11:00 C08L 81:06 C08L 81:06 F term (reference) 2H090 JA02 JB03 JC03 JC07 KA05 LA01 LA02 4D075 AC43 BB06X BB46Z CA47 DA04 DB44 DC22 EA05 EA21 4F006 AA40 AB34 AB42 AB43 BA15 CA05 DA04 EA03 4F204 AA44 AD05 AD08 AG03 AH33 EA03 EB02 EB13 EF23 EK03 EK17 EK18
Claims (8)
性樹脂組成物を塗布またはラミネートし、該紫外線硬化
性樹脂組成物が軟化した状態で凹凸の形状を有するロー
ルに密着させて紫外線を照射し、ロール凹凸面を転写、
成形することを特徴とする高分子フィルムシートの製造
方法。An ultraviolet-curable resin composition is applied or laminated on a raw polymer film sheet, and the ultraviolet-curable resin composition is irradiated with ultraviolet light by being adhered to a roll having irregularities in a softened state. And transfer the roll uneven surface,
A method for producing a polymer film sheet, comprising forming.
透過する透明ロールであり、ロール中に紫外線光源を有
するものである請求項１記載の高分子フィルムシートの
製造方法。2. The method for producing a polymer film sheet according to claim 1, wherein the roll having a smooth surface is a transparent roll transmitting hollow ultraviolet rays, and the roll has an ultraviolet light source.
過する透明なフィルムシート原反であり、ロールに密着
させた状態で高分子フィルムシート原反のロール接触面
の反対側から紫外線を照射する請求項１記載の高分子フ
ィルムシートの製造方法。3. The raw material of the polymer film sheet is a transparent film sheet that transmits ultraviolet light, and is irradiated with ultraviolet light from the side opposite to the roll contact surface of the raw material of the polymer film sheet in a state of being in close contact with a roll. The method for producing a polymer film sheet according to claim 1.
透明ロールと、該透明ロール中空部に紫外線光源が設置
されている紫外線露光部を有する高分子フィルムシート
の製造装置。4. An apparatus for producing a polymer film sheet having a hollow transparent roll having an uneven surface and transmitting ultraviolet light, and an ultraviolet light exposure section having an ultraviolet light source installed in the hollow portion of the transparent roll.
ムシートの製造方法を用いて製造した光学用高分子フィ
ルムシート。5. An optical polymer film sheet produced by using the method for producing a polymer film sheet according to claim 1.
項５記載の光学用高分子フィルムシート。6. The optical polymer film sheet according to claim 5, wherein the polymer is polyether sulfone.
トを用いた透明電極基板用高分子フィルムシート。7. A polymer film sheet for a transparent electrode substrate using the polymer film for optical use according to claim 5.
項７記載の透明電極基板用高分子フィルムシート。8. The polymer film sheet for a transparent electrode substrate according to claim 7, wherein the polymer is polyether sulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000168019A JP2001347220A (en) | 2000-06-05 | 2000-06-05 | Method for manufacturing polymer film sheet, manufacturing equipment and polymer film sheet for optics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000168019A JP2001347220A (en) | 2000-06-05 | 2000-06-05 | Method for manufacturing polymer film sheet, manufacturing equipment and polymer film sheet for optics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001347220A true JP2001347220A (en) | 2001-12-18 |
Family
ID=18671088
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000168019A Pending JP2001347220A (en) | 2000-06-05 | 2000-06-05 | Method for manufacturing polymer film sheet, manufacturing equipment and polymer film sheet for optics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001347220A (en) |
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|---|---|---|---|---|
| WO2007034643A1 (en) * | 2005-09-20 | 2007-03-29 | Konica Minolta Opto, Inc. | Process for producing film with rugged pattern |
| JP2007083447A (en) * | 2005-09-20 | 2007-04-05 | Fujifilm Corp | Method and apparatus for manufacturing embossed sheet |
| WO2007040023A1 (en) * | 2005-10-03 | 2007-04-12 | Konica Minolta Opto, Inc. | Process for producing film with rugged pattern and production apparatus therefor |
| JP2007098742A (en) * | 2005-10-04 | 2007-04-19 | Konica Minolta Opto Inc | Manufacturing method of uneven pattern film |
| JP2007106025A (en) * | 2005-10-14 | 2007-04-26 | Fujifilm Corp | Method and apparatus for manufacturing embossed sheet |
| JP2009208282A (en) * | 2008-03-03 | 2009-09-17 | Sumitomo Bakelite Co Ltd | Plastic sheet |
| CN102331592A (en) * | 2010-07-14 | 2012-01-25 | 鸿富锦精密工业（深圳）有限公司 | Optical film manufacturing device and manufacturing method |
| JP2013010901A (en) * | 2011-06-30 | 2013-01-17 | Hitachi Chemical Co Ltd | Film wound in roll-form and having shape, and method for manufacturing the same |
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2000
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007034643A1 (en) * | 2005-09-20 | 2007-03-29 | Konica Minolta Opto, Inc. | Process for producing film with rugged pattern |
| JP2007083447A (en) * | 2005-09-20 | 2007-04-05 | Fujifilm Corp | Method and apparatus for manufacturing embossed sheet |
| JP4888392B2 (en) * | 2005-09-20 | 2012-02-29 | コニカミノルタオプト株式会社 | Method for forming antiglare antireflection film and antiglare antireflection film |
| WO2007040023A1 (en) * | 2005-10-03 | 2007-04-12 | Konica Minolta Opto, Inc. | Process for producing film with rugged pattern and production apparatus therefor |
| JP2007098742A (en) * | 2005-10-04 | 2007-04-19 | Konica Minolta Opto Inc | Manufacturing method of uneven pattern film |
| JP2007106025A (en) * | 2005-10-14 | 2007-04-26 | Fujifilm Corp | Method and apparatus for manufacturing embossed sheet |
| JP2009208282A (en) * | 2008-03-03 | 2009-09-17 | Sumitomo Bakelite Co Ltd | Plastic sheet |
| CN102331592A (en) * | 2010-07-14 | 2012-01-25 | 鸿富锦精密工业（深圳）有限公司 | Optical film manufacturing device and manufacturing method |
| JP2013010901A (en) * | 2011-06-30 | 2013-01-17 | Hitachi Chemical Co Ltd | Film wound in roll-form and having shape, and method for manufacturing the same |
| CN111356665A (en) * | 2017-11-24 | 2020-06-30 | 日本电气硝子株式会社 | Glass sheet with transparent conductive film, glass roll with transparent conductive film, and method for producing same |
| CN111356665B (en) * | 2017-11-24 | 2022-09-20 | 日本电气硝子株式会社 | Glass sheet with transparent conductive film, glass roll with transparent conductive film, and method for producing same |
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