JPH04249145A - Glare-shielding film and manufacture thereof - Google Patents
Glare-shielding film and manufacture thereofInfo
- Publication number
- JPH04249145A JPH04249145A JP3033379A JP3337991A JPH04249145A JP H04249145 A JPH04249145 A JP H04249145A JP 3033379 A JP3033379 A JP 3033379A JP 3337991 A JP3337991 A JP 3337991A JP H04249145 A JPH04249145 A JP H04249145A
- Authority
- JP
- Japan
- Prior art keywords
- film
- glare
- resin
- pigment
- coating
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000000049 pigment Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000002985 plastic film Substances 0.000 claims abstract description 7
- 238000007788 roughening Methods 0.000 claims description 4
- 238000010297 mechanical methods and process Methods 0.000 claims 2
- 239000000126 substance Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 11
- 238000005488 sandblasting Methods 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000000377 silicon dioxide Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 3
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Surface Treatment Of Optical Elements (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】ＣＲＴやフラットパネルディスプ
レイ（液晶表示体、プラズマディスプレイ、ＥＬディス
プレイなど）の画面の大型化に伴いグレアー（画面への
外光の映り込み；ギラツキ）の防止（防眩）が重要課題
となっている。本発明は特にフラットパネルディスプレ
イに効果的な防眩フィルムに関するものであるのが、広
い意味での表示体（印刷物、写真など）にも効果的であ
る。[Industrial application field] Prevention of glare (reflection of external light onto the screen; glare) as the screens of CRTs and flat panel displays (liquid crystal displays, plasma displays, EL displays, etc.) become larger (anti-glare) has become an important issue. Although the present invention relates to an anti-glare film that is particularly effective for flat panel displays, it is also effective for displays (printed matter, photographs, etc.) in a broader sense.
【０００２】0002
【従来技術及び本発明が解決しようとする課題】本発明
は表示体の見易さを向上させる防眩フィルム及びその製
造方法に関するものである。表示体表面での外光の反射
は表示体の見易さを著しく損ねる。このためＣＲＴでは
ブラウン管ガラス表面を例えば薬品でエッチングし粗面
化したりしている。またフラットパネルディスプレイで
は画面の最表面にガラス若しくはプラスチック板、プラ
スチックフィルムの表面を何等かの方法で粗面化した物
を設置するか貼付している。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-glare film that improves the visibility of a display and a method for producing the same. Reflection of external light on the display surface significantly impairs the visibility of the display. For this reason, in CRTs, the cathode ray tube glass surface is roughened by etching with chemicals, for example. Furthermore, in a flat panel display, a glass, plastic plate, or plastic film whose surface has been roughened by some method is installed or pasted on the outermost surface of the screen.
【０００３】一方、外光の反射防止のためには表面反射
の少ない材料を使用すれば粗面でなくても良い訳であり
、その様な方法としては、眼鏡、カメラなどのレンズで
実用されている多層蒸着膜による反射防止膜がある。
しかし、表示体用途では画面の大型化の要請もあり、多
層蒸着膜による反射防止膜の使用はコスト高となり経済
的ではない。多層蒸着膜ほどの費用を必要とせずに外光
の表示体表面での反射を抑制する方法としては、フィル
ム表面に顔料を混入した樹脂を塗工する方法がある。即
ち、ハードコート剤にシリカなどを混合し、透明プラス
チックフィルム表面に塗工し、フィルム表面での正反射
を防止する手段がある。On the other hand, in order to prevent the reflection of external light, it is not necessary to have a rough surface as long as a material with low surface reflection is used. There is an anti-reflection coating made of a multilayer vapor-deposited film. However, in display applications, there is a demand for larger screens, and the use of an antireflection film made of a multilayer vapor-deposited film increases the cost and is not economical. As a method for suppressing the reflection of external light on the surface of a display without requiring as much expense as a multi-layer vapor deposition film, there is a method of coating the film surface with a resin mixed with a pigment. That is, there is a method of mixing silica or the like with a hard coating agent and applying the mixture to the surface of a transparent plastic film to prevent specular reflection on the film surface.
【０００４】しかし、この様な方法では粗面化のために
使用しているシリカなどの顔料自体の耐擦傷性や耐薬品
性が不充分な場合、塗膜としての耐擦傷性や耐薬品性が
不満足なものになる。本発明者等は顔料を含まないクリ
アー樹脂塗工フィルムの表面をサンドブラスト加工（研
削粉末粒子を表面に噴き付ける）で粗面化することによ
り、上述の問題点を解決できることを見出し本発明を完
成するに至った。However, with this method, if the scratch resistance or chemical resistance of the pigment itself, such as silica, used for roughening the surface is insufficient, the scratch resistance or chemical resistance of the coating film may be insufficient. becomes unsatisfactory. The present inventors discovered that the above-mentioned problems could be solved by roughening the surface of a pigment-free clear resin coated film by sandblasting (spraying ground powder particles onto the surface), and completed the present invention. I ended up doing it.
【０００５】[0005]
【課題を解決するための手段】ディスプレイ画面での外
光（室内の照明、観察者周囲の風景、窓からの光など）
の反射を抑制する方法としては、上述の様にフイルム表
面に顔料を混入した樹脂を塗工する方法がある。即ちハ
ードコート剤にシリカなどを混合し、透明プラスチック
フィルム表面に塗工したものである。しかし、この様な
方法では平滑なフィルム表面上に、粗面化のために使用
しているシリカなどの顔料が点在している。顔料は完全
に樹脂中に埋まっている訳ではないので、顔料の存在し
ている部分は、樹脂の被膜は薄くなっていると思われる
。従って、防眩フィルムを表示体に組み込む際の加工工
程での薬品処理、ハンドリングにより薬品に侵されたり
、傷が入ることになる。[Means for solving the problem] External light on the display screen (indoor lighting, scenery around the viewer, light from windows, etc.)
As a method for suppressing the reflection, there is a method of coating the film surface with a resin mixed with a pigment as described above. That is, a hard coating agent mixed with silica or the like is coated on the surface of a transparent plastic film. However, in this method, pigments such as silica used for roughening are scattered on the smooth film surface. Since the pigment is not completely buried in the resin, the resin coating appears to be thinner in the area where the pigment is present. Therefore, the anti-glare film may be attacked by chemicals or scratched due to chemical treatment and handling during processing steps when incorporating it into a display body.
【０００６】この様な考察に基づき本発明者等は該フィ
ルムの実用分野での要求を考慮し、フィルム表面にのみ
凹凸を持った形での防眩フィルム（透明性が高い）の製
造を考えるに至った。ポリエステルフィルムのマット加
工方法としてサンドブラストと呼ばれる方法が既に公知
である。本発明が目指すフィルムはフィルム表面が粗面
であると同時に、耐擦傷性（ハードコート性）、耐薬品
性などを同時に兼ね備えねばならない。耐擦傷性（ハー
ドコート性）、耐薬品性などはフィルム表面に塗る樹脂
により付与するので、発明の要点はサンドブラスト加工
で塗膜表面を粗面化することにある。コーティング樹脂
としては、オルガノポリシロキサン系、メラミン系、ポ
リウレタン系、多官能アクリレート系などのハードコー
ト樹脂を使用できる。[0006] Based on these considerations, the inventors of the present invention have considered the production of an anti-glare film (highly transparent) having irregularities only on the surface of the film, taking into account the demands of the film in the practical field. reached. A method called sandblasting is already known as a matte processing method for polyester films. The film targeted by the present invention must not only have a rough film surface, but also have scratch resistance (hard coat property), chemical resistance, etc. at the same time. Since scratch resistance (hard coat property), chemical resistance, etc. are imparted by the resin applied to the film surface, the key point of the invention is to roughen the surface of the coating film by sandblasting. As the coating resin, hard coat resins such as organopolysiloxane, melamine, polyurethane, and polyfunctional acrylate resins can be used.
【０００７】サンドブラスト加工に使用する研削粉末と
してはコーティング樹脂塗膜の硬度，用途に応じて選択
できる。例えば、川砂，海砂などを使用できる。基材と
なる透明プラスチックフィルムとしては用途に応じて必
要な物性のフィルムを使用すれば良い。例えばポリエス
テルフィルム、ポリエチレンフィルム、ポリプロピレン
フィルム、セロファン、アセテートフィルム、トリアセ
テートフィルム、ポリ塩化ビニルフィルム、ポリ塩化ビ
ニリデンフィルム、ポリビニルアルコールフィルム、エ
チレンビニルアルコールフィルム、ポリスチレンフィル
ム、ポリカーボネートフィルム、ポリメチルペンテンフ
ィルム、ポリサルフォンフィルム、ポリエーテルエーテ
ルケトンフィルム、ポリエーテルサルフォン、ポリエー
テルイミド、ポリイミドフィルム、フッ素樹脂フィルム
、ナイロンフィルム、アクリルフィルムなどが挙げられ
る。The grinding powder used in sandblasting can be selected depending on the hardness of the coating resin film and the intended use. For example, river sand, sea sand, etc. can be used. As the transparent plastic film serving as the base material, a film having the necessary physical properties depending on the purpose may be used. For example, polyester film, polyethylene film, polypropylene film, cellophane, acetate film, triacetate film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, ethylene vinyl alcohol film, polystyrene film, polycarbonate film, polymethylpentene film, polysulfone film. , polyetheretherketone film, polyethersulfone, polyetherimide, polyimide film, fluororesin film, nylon film, acrylic film, and the like.
【０００８】[0008]
【実施例】以下、本発明を具体的に実施例を以て説明す
る。
実施例１
８０μのトリアセテートフィルム（富士写真フィルム（
株）製、商品名フジタックＦＴ−０．０８０ ＵＶ）の
一方の表面にマイヤーバーにより下記の液を乾燥重量で
５ｇ／ｍ２となる様に塗工した後、１６０Ｗ／ｃｍでＵ
Ｖ照射し、樹脂を硬化後サンドブラスト加工した。
商品名フジハード（ＵＶ硬化型樹脂：藤倉化成（株）製
）[Examples] The present invention will be specifically explained below with reference to Examples. Example 1 80μ triacetate film (Fuji Photo Film)
Co., Ltd., product name: FUJITAC FT-0.080 UV) using a Mayer bar to coat one surface of the following liquid to a dry weight of 5 g/m2, and then apply U at 160 W/cm.
The resin was cured by V irradiation and then sandblasted. Product name Fuji Hard (UV curable resin: manufactured by Fujikura Kasei Co., Ltd.)
【０００９】比較例
５０μのトリアセテートフィルム（富士写真フィルム（
株）製、商品名フジタックＦＴ−０．０５０ ＳＨ）の
一方の表面にマイヤーバーにより下記の液を乾燥重量で
５ｇ／ｍ２となる様に下記の液を塗工した後、１６０Ｗ
／ｃｍでＵＶ照射し、樹脂を硬化させた。
商品名フジハード（ＵＶ硬化型樹脂：藤倉化成（株）製
）無定形シリカ（商品名サイロイド２４４：富士デビッ
トソン社製）対樹脂固形分３％Comparative Example 50μ triacetate film (Fuji Photo Film (
Co., Ltd., product name: FUJITAC FT-0.050 SH). After applying the following liquid using a Mayer bar to a dry weight of 5 g/m2, 160 W was applied.
/cm to cure the resin. Product name: Fuji Hard (UV curable resin: manufactured by Fujikura Kasei Co., Ltd.) Amorphous silica (trade name: Thyroid 244: manufactured by Fuji Davidson Co., Ltd.) Solid content of resin: 3%
【００１０】以下に示す様に、比較例では塗膜中のシリ
カが薬品（カセイソーダ）に侵され、耐薬品性の一部に
不具合が生じるが、本発明のハードコートフィルムをサ
ンドブラスト加工した実施例１では耐擦傷性が充分であ
ると同時に、耐薬品性も優れている。また、表には示し
ていないが、実施例１、比較例のフィルムを方眼紙の上
に置いた後、之を透視しながら浮かせていった時に方眼
紙の升目が判別できなくなる距離で解像度の尺度とする
と、比較例では約１５ｍｍに対し、実施例では１００ｍ
ｍ以上となり、明らかに解像度の向上が見られた。As shown below, in the comparative example, the silica in the coating film was attacked by the chemical (caustic soda), causing some defects in chemical resistance, but in the example in which the hard coat film of the present invention was sandblasted. No. 1 has sufficient scratch resistance and also has excellent chemical resistance. Also, although it is not shown in the table, when the films of Example 1 and Comparative Example were placed on graph paper and lifted up while looking through them, the resolution decreased at a distance where the squares of the graph paper became indistinguishable. As a scale, it is approximately 15 mm in the comparative example, and 100 m in the example.
m or more, clearly improving the resolution.
【００１１】
＊１村上色彩技術研究所：ヘイズメーターＨＲ−１００
＊２ティバー摩耗試験（摩耗輪ＣＳ−１０Ｆ、５００ｇ
×２，１００回転）前後のヘイズ度の差。
＊３各薬品を直径１０ｍｍ位となる様に塗工面に滴下し
、蒸発の都度、滴下を行い、所定時間繰り返した後、塗
膜の変化を観察評価した。*1 Murakami Color Technology Institute: Hazemeter HR-100
*2 Tibar wear test (wearing wheel CS-10F, 500g
×2,100 revolutions) Difference in haze degree before and after. *3 Each chemical was dropped onto the coated surface to a diameter of about 10 mm, and each drop was added each time it evaporated. After repeating this for a predetermined period of time, changes in the coating film were observed and evaluated.
【００１２】0012
【発明の効果】本発明は表示体を見るとき、表示画面に
映り込む外光の正反射をフィルム表面での光の乱反射に
より、少なくする防眩フィルム及びその製造方法に関す
るものである。本発明の効果を列挙すると、以下の様に
なる。
（１） 塗膜中に顔料を含まないので、耐薬品性が向
上する。
（２） フィルムによる光の散乱は塗膜表面の凹凸の
みにより起こるので、防眩フィルムを透視した際の解像
度が向上する。INDUSTRIAL APPLICABILITY The present invention relates to an anti-glare film that reduces regular reflection of external light reflected on a display screen when viewing a display by diffused reflection of light on the film surface, and a method for manufacturing the same. The effects of the present invention are listed below. (1) Since no pigment is included in the coating film, chemical resistance is improved. (2) Since the scattering of light by the film is caused only by the unevenness of the coating surface, the resolution when looking through the anti-glare film is improved.
Claims (2)
含まないハードコート樹脂から成る塗膜の表面が機械的
方法により粗面化された塗膜が設けられている防眩フィ
ルム。1. An anti-glare film comprising a transparent plastic film provided with a coating made of a hard coat resin containing no pigment, the surface of which has been roughened by a mechanical method.
含まないハードコート樹脂から成る塗膜を設けた後、機
械的方法により塗膜表面を粗面化する防眩フィルムの製
造方法。2. A method for producing an anti-glare film, which comprises providing a transparent plastic film with a coating made of a hard coat resin containing no pigment, and then roughening the coating surface by a mechanical method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3033379A JPH04249145A (en) | 1991-02-04 | 1991-02-04 | Glare-shielding film and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3033379A JPH04249145A (en) | 1991-02-04 | 1991-02-04 | Glare-shielding film and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04249145A true JPH04249145A (en) | 1992-09-04 |
Family
ID=12384960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3033379A Pending JPH04249145A (en) | 1991-02-04 | 1991-02-04 | Glare-shielding film and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04249145A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07159602A (en) * | 1993-12-02 | 1995-06-23 | Dainippon Printing Co Ltd | Antireflection film and its production |
| WO1996019345A1 (en) * | 1994-12-22 | 1996-06-27 | Dai Nippon Printing Co., Ltd. | Composite film |
| US6384318B1 (en) | 1999-05-31 | 2002-05-07 | Kaneka Corporation | Solar battery module |
| JP2006231136A (en) * | 2005-02-22 | 2006-09-07 | Trinity Ind Corp | Delustering method, production method for surface-decorated article and surface-decorated article |
-
1991
- 1991-02-04 JP JP3033379A patent/JPH04249145A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07159602A (en) * | 1993-12-02 | 1995-06-23 | Dainippon Printing Co Ltd | Antireflection film and its production |
| WO1996019345A1 (en) * | 1994-12-22 | 1996-06-27 | Dai Nippon Printing Co., Ltd. | Composite film |
| US5773126A (en) * | 1994-12-22 | 1998-06-30 | Dai Nippon Printing Co., Ltd. | Composite film having a surface slip property |
| US6384318B1 (en) | 1999-05-31 | 2002-05-07 | Kaneka Corporation | Solar battery module |
| US6607936B2 (en) | 1999-05-31 | 2003-08-19 | Kaneka Corporation | Solar battery module |
| JP2006231136A (en) * | 2005-02-22 | 2006-09-07 | Trinity Ind Corp | Delustering method, production method for surface-decorated article and surface-decorated article |
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