JP2001188110A - Diffuse reflective plate, precursory substrate of same and method for producing those - Google Patents
Diffuse reflective plate, precursory substrate of same and method for producing thoseInfo
- Publication number
- JP2001188110A JP2001188110A JP37208399A JP37208399A JP2001188110A JP 2001188110 A JP2001188110 A JP 2001188110A JP 37208399 A JP37208399 A JP 37208399A JP 37208399 A JP37208399 A JP 37208399A JP 2001188110 A JP2001188110 A JP 2001188110A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- roll
- film
- transfer
- transfer 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.)
- Pending
Links
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
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- 238000012546 transfer Methods 0.000 claims description 111
- 238000000034 method Methods 0.000 claims description 37
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- 238000010030 laminating Methods 0.000 description 5
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- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、バックライトを必
要としない反射型液晶表示装置や高効率を必要とされる
太陽電池などに使用される拡散反射板、拡散反射板前駆
基板及びそれらの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diffuse reflection plate, a diffuse reflection plate precursor substrate used for a reflection type liquid crystal display device which does not require a backlight, a solar cell which requires a high efficiency, and the production thereof. About the method.
【０００２】[0002]
【従来の技術】液晶表示素子を用いた液晶ディスプレイ
（以下ＬＣＤと略す）は、薄型、小型、低消費電力など
の特長を生かし、現在、時計、電卓、携帯電話、ＰＨ
Ｓ、ＴＶ、パソコン等の表示部に用いられている。更に
近年、カラーＬＣＤが開発されＯＡ・ＡＶ機器を中心に
ナビゲーションシステム、ビュウファインダーなど数多
くの用途に使われ始めており、その市場は今後、急激に
拡大するものと予想されている。特に、外部から入射し
た光を反射させて表示を行う反射型バックライトＬＣＤ
は、バックライトが不要なため消費電力が少なく、薄
型、軽量化が可能である点で携帯用情報通信機器用途と
して注目されている。2. Description of the Related Art A liquid crystal display (hereinafter abbreviated as LCD) using a liquid crystal display element is currently used in watches, calculators, mobile phones, PHs, and the like, taking advantage of features such as thinness, small size, and low power consumption.
It is used for display units such as S, TV, and personal computers. Furthermore, in recent years, color LCDs have been developed and used for a variety of applications such as navigation systems and viewfinders, mainly OA / AV equipment, and the market is expected to rapidly expand in the future. In particular, a reflective backlight LCD that performs display by reflecting light incident from the outside
Has attracted attention as a portable information communication device because it consumes less power because it does not require a backlight, and can be made thinner and lighter.
【０００３】従来から反射型ＬＣＤにはツイステッドネ
マティック方式並びにスーパーツイステッドネマティッ
ク方式が採用されているが、これらの方式では直線偏光
子により入射光の１／２が表示に利用されないことにな
り表示が暗くなってしまう。そこで、偏光子を一枚に減
らし、位相差板と組み合わせた方式や相転移型ゲスト・
ホスト方式の表示モードが提案されている。Conventionally, a twisted nematic system and a super twisted nematic system have been adopted for a reflection type LCD, but in these systems, a half of the incident light is not used for display by a linear polarizer, and the display becomes dark. turn into. Therefore, the number of polarizers was reduced to one, and a method combined with a retardation plate or a phase transition type guest
A host display mode has been proposed.
【０００４】反射型ＬＣＤにおいて外光を効率良く利用
して明るい表示を得るためには、更にあらゆる角度から
の入射光に対して、表示画面に垂直な方向に散乱する光
の強度を増加させる必要がある。そのために、反射板上
の反射膜を適切な反射特性が得られるように制御するこ
とが必要である。基板に感光性樹脂を塗布しフォトマス
クを用いてパターン化して凹凸を形成し、金属薄膜を形
成して拡散反射板を形成する方法（特開平４−２４３２
２６号公報）が提案されている。In order to obtain a bright display by efficiently using external light in a reflective LCD, it is necessary to further increase the intensity of light scattered in a direction perpendicular to the display screen with respect to incident light from all angles. There is. Therefore, it is necessary to control the reflection film on the reflection plate so as to obtain appropriate reflection characteristics. A method in which a photosensitive resin is applied to a substrate and patterned using a photomask to form irregularities, and a metal thin film is formed to form a diffuse reflection plate (Japanese Patent Laid-Open No. 4-2432).
No. 26) has been proposed.
【０００５】[0005]
【発明が解決しようとする課題】前記の方法では、良好
な反射特性をもつ規則性のある凹凸形状の少なくとも一
つの配列方向と、規則性のあるカラーフィルタ画素パタ
ン等の少なくとも一つの配列方向が、同一方向に積層さ
れると、二つの規則性の周期が異なるため、良好な反射
特性でありながらもディスプレイに強いモアレが生じ、
表示が見にくくなる問題があった。本発明は、ディスプ
レイに搭載した際にモアレが見えなく、表示が見やすい
拡散反射板、拡散反射板前駆基板及びそれらの製造方法
を提供するものである。In the above-mentioned method, at least one arrangement direction of a regular uneven shape having good reflection characteristics and at least one arrangement direction of a regular color filter pixel pattern or the like are provided. When stacked in the same direction, since the two regularities have different periods, strong moire occurs on the display despite good reflection characteristics,
There was a problem that the display was difficult to see. An object of the present invention is to provide a diffuse reflector, a diffuse reflector precursor substrate, and a method of manufacturing the diffuse reflector, in which moire is not visible when mounted on a display and the display is easy to see.
【０００６】[0006]
【課題を解決するための手段】本発明は、（１）基板と
規則的な多数の微細な凹凸形状を有する薄膜層からなる
拡散反射板において、規則的な多数の微細な凹凸形状の
少なくとも一つの配列方向と、基板のいずれか一辺方向
を互いに交わるようにした拡散反射板である。（２）規
則的な多数の微細な凹凸形状の少なくとも一つの配列方
向と、基板のいずれか一辺方向を互いに３度以上の角度
で交わるようにした上記（１）に記載の拡散反射板、
（３）規則的な多数の微細な凹凸形状の表面に反射膜を
設けた上記（１）または上記（２）に記載の拡散反射
板、（４）基板上に規則的な多数の微細な凹凸形状を有
する薄膜層と転写フィルムが順次積重ねられた拡散反射
板前駆基板において、転写フィルムの規則的な多数の微
細な凹凸形状の少なくとも一つの配列方向と、基板のい
ずれか一辺方向を互いに交わるようにした拡散反射板前
駆基板、（５）規則的な多数の微細な凹凸形状を有する
薄膜層と転写フィルムが積重ねられた積層フィルムと基
板を、規則的な多数の微細な凹凸形状の少なくとも一つ
の配列方向と、基板のいずれか一辺方向が互いに交わる
ようにロールによる熱圧着を行う工程を含んで作製する
ことを特徴とする拡散反射板前駆基板の製造方法、
（６）基板の表面に薄膜層を形成し、規則的な多数の微
細な凹凸形状を有する転写フィルムの凹凸形状の少なく
とも一つの配列方向と、基板の表面に形成された薄膜層
とを基板のいずれか一辺方向が互いに交わるようにロー
ルによる熱圧着を行う工程を含んで作製することを特徴
とする拡散反射板前駆基板の製造方法、（７）上記
（５）または上記（６）に記載の拡散反射板前駆基板か
ら転写フィルムを除去する工程を有する拡散反射板の製
造方法、（８）上記（７）で得られた拡散反射板の薄膜
層表面に反射膜を設ける工程を有する拡散反射板の製造
方法、（９）予め転写フィルムの凹凸形状面に反射膜が
設けて有り、転写フィルムと反射膜の界面で転写フィル
ムを除去する上記（７）に記載の拡散反射板の製造方
法、（１０）規則的な多数の微細な凹凸形状を有する転
写原型ロールに凹凸形状の少なくとも一つの配列方向が
ロールの円周方向とほぼ同じである転写原型を作製し、
この転写原型の微細な凹凸形状を転写した転写フィルム
を作製する工程、転写フィルムの規則的な多数の微細な
凹凸形状を有する面に薄膜層を形成し積層フィルムを作
製する工程、積層フィルムの薄膜層側と基板をロールに
よる熱圧着する工程、転写フィルムを除去する工程を有
する拡散反射板の製造方法であり、ロールの円周方向と
ほぼ同じである積層フィルムの辺方向と基板のいずれか
一辺方向が交わるように熱圧着することを特徴とする拡
散反射板の製造方法、（１１）規則的な多数の微細な凹
凸形状を有する転写原型ロールに凹凸形状の少なくとも
一つの配列方向がロールの円周方向とほぼ同じである転
写原型を作製し、この転写原型の微細な凹凸形状を転写
した転写フィルムを作製する工程、基板に薄膜層を形成
する工程、基板に形成した薄膜層側と転写フィルムをロ
ールによる熱圧着する工程、転写フィルムを除去する工
程を有する拡散反射板の製造方法であり、ロールの円周
方向とほぼ同じである転写フィルムの辺方向と基板のい
ずれか一辺方向が交わるように熱圧着することを特徴と
する拡散反射板の製造方法、（１２）規則的な多数の微
細な凹凸形状を有する転写原型ロールに凹凸形状の少な
くとも一つの配列方向がロールの円周方向に対して一定
角度を有する転写原型を作製し、この転写原型の微細な
凹凸形状を転写した転写フィルムを作製する工程、転写
フィルムの規則的な多数の微細な凹凸形状を有する面に
薄膜層を形成し積層フィルムを作製する工程、積層フィ
ルムの薄膜層側と基板をロールによる熱圧着する工程、
転写フィルムを除去する工程を有する拡散反射板の製造
方法であり、積層フィルムの辺方向と基板のいずれか一
辺方向が前記熱圧着するロール円周方向とほぼ同じにな
るように熱圧着することを特徴とする拡散反射板の製造
方法、（１３）規則的な多数の微細な凹凸形状を有する
転写原型ロールに凹凸形状の少なくとも一つの配列方向
がロールの円周方向に対して一定角度を有する転写原型
を作製し、この転写原型の微細な凹凸形状を転写した転
写フィルムを作製する工程、基板に薄膜層を形成する工
程、基板に形成した薄膜層側と転写フィルムをロールに
よる熱圧着する工程、転写フィルムを除去する工程を有
する拡散反射板の製造方法であり、転写フィルムの辺方
向と基板のいずれか一辺方向が前記熱圧着するロール円
周方向とほぼ同じになるように熱圧着することを特徴と
する拡散反射板の製造方法、（１４）転写フィルムを作
製する工程の後に、転写フィルムの凹凸面に反射膜を設
ける工程を有し、転写フィルムを除去する工程において
転写フィルムの凹凸面と反射膜の界面から転写フィルム
を除去する上記（１０）ないし（１３）のいずれかに記
載の拡散反射板の製造方法である。According to the present invention, there is provided (1) a diffuse reflection plate comprising a substrate and a thin film layer having a number of regular fine irregularities, wherein at least one of the regular number of minute irregularities is provided. This is a diffuse reflection plate in which one arrangement direction and one of the sides of the substrate intersect each other. (2) The diffuse reflection plate according to the above (1), wherein at least one arrangement direction of a large number of regular fine concavo-convex shapes and any one side direction of the substrate cross each other at an angle of 3 degrees or more.
(3) The diffuse reflection plate according to the above (1) or (2), wherein a reflective film is provided on the surface of a large number of regular fine irregularities, and (4) a large number of regular fine irregularities on a substrate. In a diffuse reflection plate precursor substrate in which a thin film layer having a shape and a transfer film are sequentially stacked, at least one arrangement direction of a regular large number of fine irregularities of the transfer film and any one side direction of the substrate intersect each other. (5) a laminated film and a substrate in which a thin film layer having a large number of regular fine irregularities and a transfer film are stacked, and a substrate having at least one of a regular large number of small irregularities. Arrangement direction and a method of manufacturing a diffuse reflection plate precursor substrate, characterized in that it includes a step of performing thermocompression bonding with a roll so that any one side direction of the substrate intersects with each other,
(6) A thin film layer is formed on the surface of the substrate, and at least one arrangement direction of the irregularities of the transfer film having a large number of regular fine irregularities is aligned with the thin film layer formed on the surface of the substrate. (7) The method for producing a diffuse reflection plate precursor substrate according to (7), wherein the method includes a step of performing thermocompression bonding using a roll such that any one of the sides intersects with each other. A method of manufacturing a diffuse reflector having a step of removing a transfer film from a diffuse reflector precursor substrate; (8) a diffuse reflector having a step of providing a reflective film on the thin film layer surface of the diffuse reflector obtained in (7) above (9) The method for manufacturing a diffuse reflection plate according to (7), wherein a reflection film is provided on the uneven surface of the transfer film in advance, and the transfer film is removed at an interface between the transfer film and the reflection film. 10) Regular multiple At least one arrangement direction of the uneven shape transfer mold roll having fine irregularities to prepare a transfer mold is substantially the same as the circumferential direction of the roll,
A step of producing a transfer film in which the fine irregularities of the transfer prototype are transferred, a step of forming a thin film layer on a surface of the transfer film having a number of regular fine irregularities to produce a laminated film, a thin film of the laminated film A method of manufacturing a diffuse reflection plate having a step of thermocompression bonding a layer side and a substrate by a roll, and a step of removing a transfer film, wherein one side of the substrate and one side of the laminated film are substantially the same as the circumferential direction of the roll. (11) A method of manufacturing a diffuse reflection plate, wherein thermocompression bonding is performed so that the directions cross each other. A process of producing a transfer prototype that is almost the same as the circumferential direction, a process of producing a transfer film in which the fine irregularities of the transfer prototype are transferred, a process of forming a thin film layer on the substrate, A method of manufacturing a diffuse reflection plate, comprising a step of thermocompression bonding the formed thin film layer side and a transfer film by a roll, and a step of removing the transfer film, wherein the side direction of the transfer film and the substrate are substantially the same as the circumferential direction of the roll. (12) A method of manufacturing a diffuse reflection plate, wherein thermo-compression bonding is performed such that one side direction intersects. (12) At least one arrangement direction of irregularities on a transfer prototype roll having a large number of regular fine irregularities. Is a process of producing a transfer mold having a certain angle with respect to the circumferential direction of the roll, and producing a transfer film in which the fine irregularities of the transfer mold are transferred. Step of forming a thin film layer on the surface having to produce a laminated film, step of thermocompression bonding the thin film layer side of the laminated film and the substrate by a roll,
A method for manufacturing a diffuse reflection plate having a step of removing a transfer film, wherein thermocompression bonding is performed such that the side direction of the laminated film and any one side direction of the substrate are substantially the same as the circumferential direction of the roll for thermocompression bonding. (13) A transfer method in which at least one arrangement direction of the concave and convex shapes has a constant angle with respect to the circumferential direction of the roll on a transfer prototype roll having a large number of regular fine concave and convex shapes. Producing a prototype, producing a transfer film by transferring the fine irregularities of the transcription prototype, forming a thin film layer on the substrate, thermocompression-bonding the thin film layer formed on the substrate and the transfer film with a roll, A method of manufacturing a diffuse reflection plate having a step of removing a transfer film, wherein the side direction of the transfer film and one of the sides of the substrate are substantially the same as the circumferential direction of the roll to which the thermocompression bonding is applied. And (14) a step of providing a reflective film on the uneven surface of the transfer film after the step of preparing the transfer film, and removing the transfer film. The method according to any one of the above (10) to (13), wherein the transfer film is removed from an interface between the uneven surface of the transfer film and the reflective film in the step.
【０００７】本発明は、拡散反射板の規則性のある凹凸
形状の少なくとも一つの配列方向と、規則性のあるカラ
ーフィルタ画素パタン等の少なくとも一つの配列方向
が、同一方向に積層されると、二つの規則性の周期が異
なるため、ディスプレイに強いモアレが生じ、表示が見
にくくなる問題を、カラーフィルタ画素パタン等の少な
くとも一つの配列方向と拡散反射板の規則性のある凹凸
形状の少なくとも一つの配列方向を同じ方向にせずに交
わらせることにより、モアレのピッチを短くして視認さ
れないようにし、解決を図ったものである。このためカ
ラーフィルター画素パターンの規則性と拡散反射板の規
則性の配列方向の交わる角度は、３度以上とすることが
好ましい。本発明では、カラーフィルター画素の規則性
のあるパターンは、反射板の基板の辺方向と同じ方向に
なるので、カラーフィルター画素の規則性のあるパター
ンを基板の辺方向にして説明してある。ここで、規則的
な多数の微細な凹凸形状の少なくとも一つの配列方向を
図５、図６を用いて説明する。図５（ａ）には、規則的
な多数の微細な凹凸形状が正六角形の場合で、規則的に
並んだ例を示した。ある方向から光を当て凹凸形状を上
面から見た場合、光が反射して列をなして見える方向が
ある。その方向が凹凸形状の配列方向であり、図のよう
に第一の配列方向から第六の配列方向まであり、第一の
配列方向と第六の配列方向は３０度となり、規則的な多
数の微細な凹凸形状の少なくとも一つの配列方向と、基
板のいずれか一辺方向を互いに３度以上の角度で交わる
ようにするには、基板の一辺が０度方向の場合、３度〜
２７度の範囲で交わるようにすると良い。図５（ｂ）
は、規則的な多数の微細な凹凸形状が六角形の場合を示
し、その凹凸形状の配列方向は、第一の配列方向から第
六の配列方向まである。図５（ｃ）は、規則的な多数の
微細な凹凸形状が正四角形の場合を示し、その凹凸形状
の配列方向は、第一の配列方向から第四の配列方向まで
ある。図６（ｄ）は、規則的な多数の微細な凹凸形状が
菱形の場合を示し、その凹凸形状の配列方向は、第一の
配列方向から第四の配列方向まである。図６（ｅ）は、
凹凸形状が２種類から構成され、一つの合同な凹凸形状
が規則的な多数の微細な凹凸形状を構成し、凹凸形状の
第一の配列方向から第四の配列方向まである。本発明
は、この規則的な多数の微細な凹凸形状の配列方向と、
基板のいずれか一辺方向を互いに交わるようにするもの
である。According to the present invention, when at least one arrangement direction of a regular concave and convex shape of a diffuse reflection plate and at least one arrangement direction of a regular color filter pixel pattern and the like are stacked in the same direction, Since the two regularity periods are different, strong moiré occurs on the display, and the problem that the display is difficult to see is caused by at least one arrangement direction of the color filter pixel pattern or the like and at least one regular irregularity shape of the diffuse reflection plate. By interchanging the arrangement directions without setting them in the same direction, the pitch of the moiré is shortened so that the moire is not visually recognized, thereby solving the problem. For this reason, it is preferable that the angle at which the regularity of the color filter pixel pattern and the regularity of the diffuse reflection plate intersect each other be 3 degrees or more. In the present invention, since the regular pattern of the color filter pixels is in the same direction as the side direction of the substrate of the reflector, the regular pattern of the color filter pixels is described as the side direction of the substrate. Here, at least one arrangement direction of a large number of regular fine irregularities will be described with reference to FIGS. FIG. 5A shows an example in which a large number of regular fine concave and convex shapes are regular hexagons and are regularly arranged. When light is applied from a certain direction and the uneven shape is viewed from above, there is a direction in which the light is reflected and can be seen in a row. The direction is the arrangement direction of the uneven shape, as shown in the drawing, from the first arrangement direction to the sixth arrangement direction, the first arrangement direction and the sixth arrangement direction are 30 degrees, and a large number of regular arrangements In order for at least one arrangement direction of the fine unevenness to intersect with any one side direction of the substrate at an angle of 3 degrees or more, when one side of the substrate is in the 0 degree direction, 3 degrees to
It is good to cross in the range of 27 degrees. FIG. 5 (b)
Shows a case where a large number of regular fine irregularities are hexagonal, and the arrangement direction of the irregularities is from the first arrangement direction to the sixth arrangement direction. FIG. 5C shows a case where a large number of regular fine irregularities are regular squares, and the arrangement direction of the irregularities is from the first arrangement direction to the fourth arrangement direction. FIG. 6D shows a case where a large number of regular fine irregularities are rhombic, and the arrangement direction of the irregularities is from the first arrangement direction to the fourth arrangement direction. FIG. 6 (e)
The concavo-convex shape is composed of two types, and one congruent concavo-convex shape forms a large number of regular fine concavo-convex shapes, from the first arrangement direction of the concavo-convex shape to the fourth arrangement direction. The present invention, the arrangement direction of this regular numerous fine irregularities,
Any one side direction of the substrate intersects with each other.
【０００８】[0008]
【発明の実施の形態】本発明の拡散反射板は、表面に規
則的な多数の微細な凹凸形状を有し、その凹凸形状の少
なくとも一つの配列方向と基板のいずれか一辺方向が、
互いに交わるようにした拡散反射板である。好ましく
は、３度以上の角度で交わっている拡散反射板であると
好ましい。拡散反射板の規則的な多数の微細な凹凸形状
の少なくとも一つの配列方向と、基板のいずれか一辺方
向を互いに交わるようにする場合、規則的な多数の微細
な凹凸形状の配列方向が複数ある場合は、それらが何れ
も基板のいずれか一辺方向と交わるようにするのが好ま
しい。BEST MODE FOR CARRYING OUT THE INVENTION The diffuse reflection plate of the present invention has a large number of regular fine irregularities on the surface, and at least one arrangement direction of the irregularities and one side direction of the substrate are:
These are diffuse reflection plates that cross each other. Preferably, it is a diffuse reflection plate intersecting at an angle of 3 degrees or more. At least one arrangement direction of the regular numerous fine irregularities of the diffuse reflection plate and, when making any one side direction of the substrate intersect each other, there are a plurality of regular arrangement directions of the many minute irregularities. In such a case, it is preferable that all of them intersect with any one side of the substrate.
【０００９】本発明の拡散反射板前駆基板は、拡散反射
板を作製する工程で得られるもので、基板、薄膜層及び
転写フィルムから構成されたもので、拡散反射板前駆基
板からこの転写フィルムを除去することにより拡散反射
板が得られる。本発明の拡散反射板前駆基板は、表面に
規則的な多数の微細な凹凸形状を有する転写フィルムと
薄膜層が基板に積層されていて、転写フィルムの凹凸形
状の少なくとも一つの配列方向と基板のいずれかの一辺
方向が交わって積層されている拡散反射板前駆基板であ
る。The diffuse reflector precursor substrate of the present invention is obtained in the step of manufacturing a diffuse reflector, and is composed of a substrate, a thin film layer and a transfer film. By removing, a diffuse reflection plate is obtained. The diffuse reflection plate precursor substrate of the present invention, a transfer film and a thin film layer having a large number of regular fine irregularities on the surface are laminated on the substrate, at least one arrangement direction of the irregularities of the transfer film and the substrate. This is a diffuse reflection plate precursor substrate that is stacked with any one side direction intersecting.
【００１０】本発明の拡散反射板の製造方法は、前記拡
散反射板前駆基板をロールによる熱圧着を含む工程で作
製し、この際に、規則的な多数の微細な凹凸形状の少な
くとも一つの配列方向と、基板のいずれか一辺方向を互
いに交わるようにする。これらの方法として、規則的な
多数の微細な凹凸形状の少なくとも一つの配列方向と基
板のいずれか一辺方向を互いに交わるように、基板の辺
方向を動かして調整してラミネートする方法と、予め基
板の辺方向をラミネートロールの円周方向に直角または
平行となるように、規則的な多数の微細な凹凸形状を転
写フィルムに設けて、その凹凸形状の少なくとも一つの
配列方向が基板の辺方向をラミネートロールの円周方向
に直角または平行にラミネートする場合に、基板のいず
れか一辺方向と凹凸形状の少なくとも一つの配列方向が
交わるようにしたものである。In the method for manufacturing a diffuse reflector according to the present invention, the diffuse reflector precursor substrate is prepared by a process including thermocompression bonding using a roll, and at this time, at least one arrangement of a large number of regular fine irregularities is provided. The direction intersects with one of the sides of the substrate. As these methods, a method of moving and adjusting the side direction of the substrate so as to intersect at least one arrangement direction of a large number of regular fine irregularities and any one side direction of the substrate, and laminating the substrate in advance A large number of regular fine irregularities are provided on the transfer film so that the side direction is perpendicular or parallel to the circumferential direction of the laminate roll, and at least one arrangement direction of the irregularities corresponds to the side direction of the substrate. When laminating at right angles or parallel to the circumferential direction of the laminating roll, one side direction of the substrate intersects at least one arrangement direction of the uneven shape.
【００１１】本発明の拡散反射板は、基板に規則的な多
数の微細な凹凸形状をもつ薄膜層を形成する際に、転写
フィルムの少なくとも一つの配列方向と前記基板のいず
れか一辺方向が交わるように貼り合わせ、転写フィルム
を剥がし、または、剥がさないで、露光、加熱する工程
によって薄膜層を架橋、硬化させ、規則的な多数の微細
な凹凸形状の配列方向と基板の辺方向が互いに交わった
拡散反射面が得られる。規則的な多数の微細な凹凸形状
をもつ薄膜層の凹凸表面に、更に金属膜等の反射膜を形
成すれば所望の光拡散板が得られる。このようにしてで
きた拡散反射板は、液晶表示ディスプレイに搭載する
際、カラーフィルタ画素パタン等の規則性の方向と拡散
反射板の凹凸形状の配列方向が交わるため、ディスプレ
イ表示のモアレピッチは非常に細かくなりモアレが見え
なくなる。In the diffuse reflection plate of the present invention, at the time of forming a thin film layer having a large number of regular fine irregularities on the substrate, at least one arrangement direction of the transfer film intersects with any one side of the substrate. The thin film layer is cross-linked and cured by a process of exposing and heating without peeling or peeling the transfer film, and the arrangement direction of the regular numerous fine irregularities and the side direction of the substrate intersect each other. Diffused reflecting surface is obtained. A desired light diffusing plate can be obtained by further forming a reflective film such as a metal film on the uneven surface of the thin film layer having a large number of regular fine uneven shapes. When the diffuse reflector formed in this manner is mounted on a liquid crystal display, the direction of regularity of the color filter pixel pattern and the like and the arrangement direction of the uneven shape of the diffuse reflector intersect, so that the moire pitch of the display display is very low. It becomes fine and moire disappears.
【００１２】基板のいずれか一辺方向と、転写される規
則的な多数の微細な凹凸形状の少なくとも一つの配列方
向が交わる角度は、３度以上であることが好ましく、デ
ィスプレイに搭載されるカラーフィルタ画素パタン等の
ピッチ等によって最良の角度は異なってくるので、予め
シュミレーションや試験等により最適な角度をつかんで
おくことが好ましい。The angle at which any one side direction of the substrate intersects with at least one arrangement direction of a large number of regularly transferred fine irregularities is preferably 3 degrees or more, and a color filter mounted on a display is preferred. Since the best angle differs depending on the pitch of the pixel pattern or the like, it is preferable to grasp the optimum angle in advance by simulation, test, or the like.
【００１３】本発明で使用する転写フィルムは、転写原
型に形成した規則的な多数の微細な凹凸形状を転写して
作製することが好ましい。転写原型の材質は、金属、樹
脂等であり、制限されないが、寸法安定性、導電性に優
れるステンレス等の鉄合金、さらに加工裕度のある銅が
積層されたものを用いるのが好ましい。表面は機械研
磨、エッチング、洗浄する等して均一にして用いる。板
状、シート状、ロール状等制限されないが、ロール状で
あると回転しながら加工が可能となるので好ましい。The transfer film used in the present invention is preferably prepared by transferring a large number of regular fine irregularities formed on a transfer master. The material of the transfer mold is a metal, a resin, or the like, and is not limited. However, it is preferable to use an iron alloy such as stainless steel having excellent dimensional stability and conductivity, and a laminate of copper having a processing allowance. The surface is made uniform by mechanical polishing, etching, washing and the like. The shape is not limited to a plate, a sheet, a roll, and the like. However, a roll is preferable because processing can be performed while rotating.
【００１４】転写原型ロールの製造方法の一例として、
まず、ロール状基材を回転させながら、ダイヤモンド圧
子を移動させるか、またはロールを移動させながら、圧
子を押圧することにより、実質的に合同な形状が隣接し
て並んだ凹凸部を形成する。圧子と圧子の間は密接して
もよく任意の距離をあけてもよい。また複数の形状の異
なる圧子を押圧したり、同じ圧子を位置を変えて押圧す
ることもできる。ダイヤモンド圧子の形状を選択するこ
とで反射特性を最適化することができる。押圧後の形状
は、球面または放物面の一部、円錐または多面体を押し
当て、緻密に隣接させた形状が好ましい。そうすること
によって、正反射方向への反射強度を少なくすることが
できる。また、凹凸の面形状は特に限定されないが、複
合平面だけでなく凹曲面あるいは凸曲面、凹凸複合の曲
面、さらには球面や放物面に近似した凹曲面あるいは凸
曲面、凹凸複合の曲面であることが好ましい。これは、
曲面とすることで、より広範囲の光源位置からの拡散光
を期待できるからである。特に反射型ＬＣＤ用拡散反射
板の場合、ＬＣＤセル内に光拡散面を形成する必要か
ら、平均高低差Ｈは、セルギャップやΔｎｄを考慮し、
小さいほど好ましい。凹凸形状としては、凹部と凸部の
高さの差が０．１μｍ〜１５μｍ、さらには、０．１μ
ｍ〜５μｍ、凸部のピッチが０．７μｍ以上で１５０μ
ｍあるいは画素ピッチのいずれか小さい方以下、さらに
は２μｍ以上で１５０μｍあるいは画素ピッチのいずれ
か小さい方以下であることが好ましい。As an example of a method of manufacturing a transfer prototype roll,
First, the diamond indenter is moved while rotating the roll-shaped substrate, or the indenter is pressed while moving the roll, thereby forming concavo-convex portions having substantially congruent shapes adjacent to each other. The indenter may be in close contact with the indenter, or may have an arbitrary distance. Further, a plurality of indenters having different shapes can be pressed, or the same indenter can be pressed at different positions. The reflection characteristics can be optimized by selecting the shape of the diamond indenter. The shape after pressing is preferably a shape in which a spherical surface, a part of a paraboloid, a cone or a polyhedron is pressed and closely adjacent to each other. By doing so, the reflection intensity in the regular reflection direction can be reduced. In addition, the surface shape of the unevenness is not particularly limited, but is not only a complex plane but also a concave or convex curved surface, a curved surface of a complex unevenness, and further a concave or convex curved surface approximating a spherical surface or a paraboloid, a curved surface of a complex unevenness. Is preferred. this is,
This is because by making the surface curved, diffused light from a wider range of light source positions can be expected. In particular, in the case of a diffused reflection plate for a reflection type LCD, since it is necessary to form a light diffusion surface in the LCD cell, the average height difference H is determined in consideration of the cell gap and Δnd.
Smaller is more preferable. As the uneven shape, the difference between the height of the concave portion and the height of the convex portion is 0.1 μm to 15 μm, and furthermore, 0.1 μm.
m to 5 μm, 150 μm when the pitch of the projections is 0.7 μm or more
It is preferable that m is smaller than a smaller one of m and the pixel pitch.
【００１５】上記には例として、圧子による機械的加工
を示したが、レーザーによる加工、エッチングによる加
工等を用いてもよく、また、それらを組み合わせて用い
ることもできる。本発明で使用する転写フィルムは、ロ
ール状、巻物状の形態を備えたものが好ましく、転写原
型に変形可能なフィルムを押し当てることによって製造
することができる。変形可能なフィルムとして、プラス
チックフィルムが挙げられる。また、本発明で使用する
転写フィルムとしては、特に制限するものではないが、
規則的な多数の微細な凹凸形状を備えた鉄、銅、金、合
金等、またはそれら二種以上が積層された金属箔を用い
ることができる。本発明で使用する転写フィルムは、プ
ラスチック、金属等のベースフィルムに、変形可能な下
塗り層を設け、この層に転写原型を押し当てる工程、下
塗り層を硬化する工程により形成したものが使用でき
る。押し当てる工程で熱、光等を与えてもよい。Although mechanical processing using an indenter has been described above as an example, processing using laser, processing using etching, or the like may be used, or a combination of them may be used. The transfer film used in the present invention preferably has a roll-like or roll-like form, and can be produced by pressing a deformable film against a transfer mold. Deformable films include plastic films. Further, the transfer film used in the present invention is not particularly limited,
It is possible to use iron, copper, gold, an alloy, or the like having a large number of regular fine irregularities, or a metal foil in which two or more thereof are laminated. As the transfer film used in the present invention, a film formed by providing a deformable undercoat layer on a base film of plastic, metal or the like, pressing a transfer mold against this layer, and curing the undercoat layer can be used. Heat, light, or the like may be given in the pressing step.
【００１６】下塗り層としては、凹凸形成後は薄膜層よ
りも硬いものが好ましい。例えば、ポリエチレン、ポリ
プロピレンなどのポリオレフィン、エチレン・酢酸ビニ
ル共重合体、エチレン・アクリル酸エステル共重合体、
エチレン・ビニルアルコール共重合体のようなエチレン
共重合体、ポリ塩化ビニル、塩化ビニル・酢酸ビニル共
重合体、塩化ビニル・ビニルアルコール共重合体、ポリ
塩化ビニリデン、ポリスチレン、スチレン・（メタ）ア
クリル酸エステル共重合体のようなスチレン共重合体、
ポリビニルトルエン、ビニルトルエン・（メタ）アクリ
ル酸エステル共重合体のようなビニルトルエン共重合
体、ポリ（メタ）アクリル酸エステル、（メタ）アクリ
ル酸ブチル・酢酸ビニル共重合体のような（メタ）アク
リル酸エステル共重合体、セルロースアセテート、ニト
ロセルロース、セロハン等のセルロース誘導体、ポリア
ミド、ポリスチレン、ポリカーボネート、ポリイミド、
ポリエステル、合成ゴム、セルローズ誘導体等から選ば
れた、少なくとも１種類以上の有機高分子を用いること
ができる。It is preferable that the undercoat layer is harder than the thin film layer after the formation of the unevenness. For example, polyethylene, polyolefins such as polypropylene, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer,
Ethylene copolymer such as ethylene / vinyl alcohol copolymer, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, vinyl chloride / vinyl alcohol copolymer, polyvinylidene chloride, polystyrene, styrene / (meth) acrylic acid Styrene copolymers such as ester copolymers,
(Meth) such as polyvinyl toluene, vinyl toluene copolymer such as vinyl toluene / (meth) acrylate copolymer, poly (meth) acrylate, butyl (meth) acrylate / vinyl acetate copolymer Acrylate copolymer, cellulose acetate, nitrocellulose, cellulose derivatives such as cellophane, polyamide, polystyrene, polycarbonate, polyimide,
At least one or more organic polymers selected from polyester, synthetic rubber, cellulose derivatives and the like can be used.
【００１７】下塗り層には、凹凸形成後硬化させるため
に、必要に応じて光開始剤やエチレン性二重結合を有す
るモノマ等を予め添加することができる。To the undercoat layer, a photoinitiator, a monomer having an ethylenic double bond, or the like can be added in advance, if necessary, for curing after forming the unevenness.
【００１８】本発明で使用する薄膜層としては、有機組
成物を用いることが好ましい。好ましくは基板や転写フ
ィルム等の支持体上に塗布し活性光線あるいは熱により
硬化し、０．１μｍ〜１５．０μｍの薄膜化が可能な、
ネガ型感光性樹脂組成物あるいはポジ型感光性樹脂組成
物あるいは熱硬化性樹脂組成物を活性光線あるいは熱あ
るいは活性光線と熱により硬化した有機組成物を用いる
のが好ましい。例えばポリエチレン、ポリプロピレンな
どのポリオレフィン、エチレンと酢酸ビニル、エチレン
とアクリル酸エステル、エチレンとビニルアルコールの
ようなエチレン共重合体、ポリ塩化ビニル、塩化ビニル
と酢酸ビニルの共重合体、塩化ビニルとビニルアルコー
ルの共重合体、ポリ塩化ビニリデン、ポリスチレン、ス
チレンと（メタ）アクリル酸エステルのようなスチレン
共重合体、ポリビニルトルエン、ビニルトルエンと（メ
タ）アクリル酸エステルのようなビニルトルエン共重合
体、ポリ（メタ）アクリル酸エステル、（メタ）アクリ
ル酸ブチルと酢酸ビニルのような（メタ）アクリル酸エ
ステルの共重合体、合成ゴム、セルローズ誘導体等から
選ばれた、少なくとも一種類以上の有機高分子を用いる
ことができる。凹凸形成後硬化させるために必要に応じ
て光開始剤やエチレン性二重結合を有するモノマ等を添
加することができる。またこの中に必要に応じて、染
料、有機顔料、無機顔料、粉体及びその複合物を単独ま
たは混合して用いてもよい。これら薄膜層の膜厚、誘電
率、硬度、屈折率、分光透過率は特に限定されない。ま
た、これら薄膜層は、前記転写フィルムに積層し、必要
であれば積層された薄膜層にカバーフィルムを積層した
積層フィルムとしてもよい。カバーフィルムとしては、
化学的および熱的に安定で、薄膜層との剥離が容易であ
るものが望ましい。具体的にはポリエチレン、ポリプロ
ピレン、ポリエチレンテレフタレート、ポリビニルアル
コール等の薄いシート状のもので表面の平滑性が高いも
のが好ましい。剥離性を付与するために表面に離型処理
をしたものでもよい。It is preferable to use an organic composition for the thin film layer used in the present invention. Preferably, it is coated on a support such as a substrate or a transfer film and cured by actinic rays or heat to make a thin film having a thickness of 0.1 μm to 15.0 μm.
It is preferable to use an organic composition obtained by curing a negative photosensitive resin composition, a positive photosensitive resin composition, or a thermosetting resin composition by actinic light, heat, or actinic light and heat. For example, polyolefins such as polyethylene and polypropylene, ethylene and vinyl acetate, ethylene and acrylate, ethylene copolymers such as ethylene and vinyl alcohol, polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate, vinyl chloride and vinyl alcohol Copolymers, polyvinylidene chloride, polystyrene, styrene copolymers such as styrene and (meth) acrylate, polyvinyl toluene, vinyl toluene copolymers such as vinyl toluene and (meth) acrylate, poly ( Use at least one or more organic polymers selected from (meth) acrylates, copolymers of (meth) acrylates such as butyl (meth) acrylate and vinyl acetate, synthetic rubber, cellulose derivatives, and the like. be able to. A photoinitiator, a monomer having an ethylenic double bond, or the like can be added, if necessary, for curing after forming the unevenness. If necessary, dyes, organic pigments, inorganic pigments, powders, and composites thereof may be used alone or in combination. The thickness, dielectric constant, hardness, refractive index, and spectral transmittance of these thin film layers are not particularly limited. Further, these thin film layers may be laminated on the transfer film, and if necessary, may be a laminated film in which a cover film is laminated on the laminated thin film layer. As a cover film,
Desirably, it is chemically and thermally stable and easy to peel off from the thin film layer. Specifically, a thin sheet made of polyethylene, polypropylene, polyethylene terephthalate, polyvinyl alcohol or the like and having high surface smoothness is preferable. The surface may be subjected to a release treatment to impart releasability.
【００１９】本発明の拡散反射板前駆基板を作製する方
法としては、転写フィルムの規則的な多数の微細な凹凸
形状の少なくとも一つの配列方向と、基板のいずれか一
辺方向が互いに交わるように、転写フィルムと薄膜層が
積層された積層フィルムの薄膜層面と基板をロールを用
いて熱圧着する。転写フィルムの規則的な多数の微細な
凹凸形状の少なくとも一つの配列方向と、基板のいずれ
か一辺方向が、互いに交わるように基板を傾けて、加
熱、加圧可能なゴムロールにより、ロールを回転させ
て、積層フィルムを基板に押し当てながら基板を送りだ
すロールラミネータを用いることが好ましい。このとき
ロールの円周方向と転写フィルムの規則的な多数の微細
な凹凸形状の少なくとも一つの配列方向を同一方向とす
ると基板を傾ける角度θ（図３参照）を調整しやすくな
るので好ましい。The method for producing the diffuse reflection plate precursor substrate of the present invention is performed so that at least one arrangement direction of a large number of regular fine irregularities of the transfer film intersects any one side direction of the substrate. The thin film layer surface of the laminated film in which the transfer film and the thin film layer are laminated and the substrate are thermocompression-bonded using a roll. At least one arrangement direction of the regular numerous fine irregularities of the transfer film, and any one side direction of the substrate is tilted so that the substrate intersects, and the roll is rotated by a rubber roll that can be heated and pressed. It is preferable to use a roll laminator that feeds the substrate while pressing the laminated film against the substrate. At this time, it is preferable that the circumferential direction of the roll and at least one arrangement direction of a large number of regular fine irregularities of the transfer film be the same direction because the angle θ (see FIG. 3) for tilting the substrate can be easily adjusted.
【００２０】反射膜としては、反射したい波長領域によ
って材料を適切に選択すれば良く、例えば反射型ＬＣＤ
表示装置では、可視光波長領域である３００ｎｍから８
００ｎｍにおいて反射率の高い金属、例えばアルミニウ
ムや金、銀等を真空蒸着法またはスパッタリング法等に
よって形成する。また反射増加膜（光学概論２（辻内順
平、朝倉書店、１９７６年発行）に記載）を上記の方法
で積層してもよい。反射膜の厚みは、０．０１μｍ〜５
０μｍが好ましい。また反射膜は、必要な部分だけフォ
トリソグラフィー法、マスク蒸着法等によりパターン形
成してもよい。反射膜は、転写フィルムの凹凸形状の表
面に形成し、これを薄膜層に転写する方法、あるいは、
転写フィルムを除去した後、薄膜層の凹凸形状の表面に
形成しても良い。The material for the reflection film may be appropriately selected depending on the wavelength region to be reflected.
In the display device, the visible light wavelength range from 300 nm to 8 nm
A metal having a high reflectance at 00 nm, such as aluminum, gold, or silver, is formed by a vacuum evaporation method, a sputtering method, or the like. In addition, a reflection increasing film (described in Optical Introduction 2 (Junhei Tsujiuchi, Asakura Shoten, published in 1976)) may be laminated by the above method. The thickness of the reflection film is 0.01 μm to 5 μm.
0 μm is preferred. The reflection film may be formed in a pattern only by a photolithography method, a mask evaporation method, or the like at a necessary portion. The reflective film is formed on the uneven surface of the transfer film, and is transferred to a thin film layer, or
After removing the transfer film, it may be formed on the uneven surface of the thin film layer.
【００２１】転写フィルムと薄膜層からなる積層フィル
ムの基板へのラミネート後の剥離面は、薄膜層と転写フ
ィルムとの間、また反射膜がある場合には反射膜と転写
フィルムの間となる。The peeled surface of the laminated film composed of the transfer film and the thin film layer after lamination on the substrate is between the thin film layer and the transfer film, and between the reflective film and the transfer film if there is a reflective film.
【００２２】薄膜層または薄膜層上に形成された反射膜
を基板に熱圧着する方法としては、カバーフィルムを剥
がし、基板上に加熱圧着すること等がある。さらに密着
性を必要とする場合には基板を必要な薬液等で洗浄した
り、基板に接着付与剤を塗布したり、基板に紫外線等を
照射する等の方法を用いてもよい。転写フィルムをラミ
ネートする装置としては基板を加熱、加圧可能なゴムロ
ールと積層フィルムとの間に挟み、ロールを回転させ
て、積層フィルムを基板に押し当てながら基板を送りだ
すロールラミネータを用いることが好ましい。As a method of thermocompression bonding the thin film layer or the reflection film formed on the thin film layer to the substrate, there is a method of peeling off the cover film and thermocompression bonding the substrate. When further adhesiveness is required, a method of cleaning the substrate with a necessary chemical solution, applying an adhesion-imparting agent to the substrate, or irradiating the substrate with ultraviolet rays or the like may be used. As a device for laminating the transfer film, it is preferable to use a roll laminator that sandwiches the substrate between a heat-pressable rubber roll and a laminated film, rotates the roll, and sends the substrate while pressing the laminated film against the substrate. .
【００２３】このようにして基板表面に形成した薄膜層
の膜厚は、０．１μｍ〜５０μｍの範囲が好ましい。こ
のとき凹凸形状の最大高低差より薄膜層の膜厚が厚い方
が凹凸形状を再現しやすい。膜厚が等しいあるいは薄い
と転写フィルムの凸部で薄膜層を突き破ってしまい、平
面部が発生し拡散反射を効率よく得にくくなる。The thickness of the thin film layer thus formed on the substrate surface is preferably in the range of 0.1 μm to 50 μm. At this time, when the thickness of the thin film layer is thicker than the maximum height difference of the uneven shape, the uneven shape is easily reproduced. If the film thicknesses are equal or thin, the convex portions of the transfer film break through the thin film layer, and a flat portion is generated, making it difficult to efficiently obtain diffuse reflection.
【００２４】この薄膜層にネガ型感光性樹脂を用いた場
合には、その形状の安定性を付与するために露光機によ
り露光を行い、感光部分を硬化させる。この目的に適用
し得る露光機としては、カーボンアーク灯、超高圧水銀
灯、高圧水銀灯、キセノンランプ、メタルハライドラン
プ、蛍光ランプ、タングステンランプ等が挙げられる。
この露光装置は画素及びＢＭ等のパターン形成用の平行
露光機でも良いが、本発明では予め形成された凹凸を硬
化させることができれば良く、このためには感光性樹脂
が硬化する露光量以上の光量を与えておけばよい。従っ
て、一般に基板洗浄装置として利用されているラインに
組み込める散乱光を用いるＵＶ照射装置を用いることが
できる。これらの装置を用いることによって、フォトマ
スクを用いる手法に比べて安価に作製でき、フォトマス
クを用いる場合に比べ、露光量に対する裕度が大きい。
また感光タイプをネガ型材を利用することで示したが、
ポジ型であっても問題はない。When a negative photosensitive resin is used for the thin film layer, exposure is performed by an exposure machine to impart stability to the shape, and the exposed portion is cured. Exposure machines applicable for this purpose include a carbon arc lamp, an ultra-high pressure mercury lamp, a high pressure mercury lamp, a xenon lamp, a metal halide lamp, a fluorescent lamp, a tungsten lamp and the like.
This exposure apparatus may be a parallel exposure machine for forming patterns of pixels and BMs, etc., but in the present invention, it is only necessary to be able to cure previously formed irregularities. It is enough to give a light amount. Therefore, a UV irradiation device using scattered light that can be incorporated in a line generally used as a substrate cleaning device can be used. By using these apparatuses, the device can be manufactured at a lower cost as compared with a method using a photomask, and the tolerance for the exposure amount is larger than that in a case where a photomask is used.
Also, the photosensitive type was shown by using a negative mold material,
There is no problem even if it is a positive type.
【００２５】露光は転写フィルムを剥がす前、または剥
がした後に行う。基板への密着性、追従性を向上させる
目的で、積層フィルムにクッション層を設けてもよい。The exposure is performed before or after the transfer film is peeled off. A cushion layer may be provided on the laminated film for the purpose of improving the adhesion to the substrate and the followability.
【００２６】以上、反射型ＬＣＤ表示装置で説明した
が、転写フィルムで製造された拡散反射板は外部光線を
拡散反射させることが必要なデバイスに用いることが出
来る。例えば太陽電池の効率向上を目的とした拡散反射
板がある。また、転写フィルムや拡散反射板は遮光板、
装飾板、スリガラス、投影スクリ−ンの白色板、光学フ
ィルタ、集光板、減光板等の製造に使用することができ
る。Although the reflection type LCD display device has been described above, the diffuse reflection plate made of a transfer film can be used for a device that needs to diffuse and reflect an external light beam. For example, there is a diffuse reflector for improving the efficiency of a solar cell. In addition, transfer film and diffuse reflection plate are light shielding plate,
It can be used in the production of decorative plates, ground glass, white plates of projection screens, optical filters, light collectors, light reduction plates, and the like.
【００２７】[0027]
【実施例】実施例１ ガラス基板に下記薄膜層形成用溶液をスピン塗布した
後、乾燥し３μｍの薄膜層を形成した。転写フィルムと
して、図３に示すような端（辺）方向と同一方向で規則
的に多数の微細な凹凸形状（ピッチ１００μｍ、高低差
２．０μｍ）が加工された厚さ５０μｍのポリエチレン
テレフタレート転写フィルムを用いた。転写フィルムの
規則的な多数の微細な凹凸形状の配列方向とラミネート
ロールの円周方向を同じとし、基板の一辺方向と１０度
（図３のθ＝１０度）で交わるように、図３に示すよう
に基板を１０度傾けて薄膜層２に接するようにラミネー
タ（ロールラミネータＨＬＭ１５００、日立化成テクノ
プラント株式会社製商品名）を用いて、基板温度１００
℃、ロール温度１００℃、ロール圧力０．５９ＭＰａ
（６ｋｇ／ｃｍ2）、速度０．５ｍ／分でラミネート
し、ガラス基板、薄膜層、転写フィルムが積層された拡
散反射板前駆基板を得た。この基板から転写フィルムを
剥がすと、薄膜層上には規則的な多数の微細な凹凸形状
の配列方向が基板の一辺方向とずれて転写された凹凸形
状であった。拡散反射板前駆基板の薄膜層に光硬化する
光線（高圧水銀灯）を平行光露光機（ＭＡＰ１２００
Ｌ、大日本スクリーン製造株式会社製商品名）を用いて
１００ｍＪ／ｃｍ2露光し光硬化させた。この基板を２
４０℃、２０分間オーブン（クリーンオーブンＣＳＯ−
４０２、楠本化成株式会社製商品名）で加熱を行い、室
温まで冷却すると露光部分の光拡散性は保持された。露
光部分の凹凸の平均高低差は１.８μmであった。これに
Ａｌ薄膜をスパッタリング法により０.１μｍの厚みに
なるよう積層し、反射膜７とした。これによって得られ
た拡散反射板は、反射特性に優れ、カラーフィルタの画
素等を介して見てもモアレが見えず、反射型ＬＣＤ用拡
散反射板として使用可能であった。 図４に、本拡散反
射板を単偏光板型のＳＴＮ反射型ＬＣＤに用いた例を示
した。Example 1 The following thin film layer forming solution was spin-coated on a glass substrate and then dried to form a 3 μm thin film layer. As a transfer film, a 50 μm-thick polyethylene terephthalate transfer film in which a large number of fine irregularities (pitch 100 μm, height difference 2.0 μm) are regularly processed in the same direction as the end (side) direction as shown in FIG. Was used. FIG. 3 shows that the arrangement direction of a large number of fine irregularities on the transfer film is the same as the circumferential direction of the laminating roll, and crosses one side of the substrate at 10 degrees (θ = 10 degrees in FIG. 3). As shown, a substrate temperature of 100 was applied using a laminator (roll laminator HLM1500, trade name of Hitachi Chemical Technoplant Co., Ltd.) so that the substrate was tilted 10 degrees and contacted the thin film layer 2.
° C, roll temperature 100 ° C, roll pressure 0.59MPa
(6 kg / cm 2 ) at a rate of 0.5 m / min to obtain a diffuse reflection plate precursor substrate on which a glass substrate, a thin film layer, and a transfer film were laminated. When the transfer film was peeled off from the substrate, the irregularities were transferred onto the thin film layer in such a way that the arrangement direction of a large number of regular fine irregularities was shifted from one side direction of the substrate. A light beam (high-pressure mercury lamp) that photocures on the thin film layer of the diffuse reflection plate precursor substrate is applied to a parallel light exposure machine (MAP1200).
L, trade name, manufactured by Dainippon Screen Mfg. Co., Ltd.) and exposed to 100 mJ / cm 2 for photocuring. This board is
40 ° C, 20 minutes oven (clean oven CSO-
402, the product was manufactured by Kusumoto Kasei Co., Ltd.), and when cooled to room temperature, the light diffusion property of the exposed portion was maintained. The average height difference of the unevenness of the exposed portion was 1.8 μm. An Al thin film was laminated thereon to a thickness of 0.1 μm by a sputtering method to form a reflection film 7. The diffuse reflection plate obtained in this way was excellent in reflection characteristics, did not show moire even when viewed through pixels of a color filter, and could be used as a diffusion reflection plate for a reflection type LCD. FIG. 4 shows an example in which the present diffuse reflector is used for a single-polarizer-type STN reflective LCD.
【００２８】薄膜層形成用溶液：ポリマーとしてスチレ
ン、メチルメタクリレート、エチルアクリレート、アク
リル酸、グリシジルメタクリレート共重合樹脂を用いた
（ポリマーＡ）。分子量は約３５０００、酸価は１１０
である。部は重量部（以下同じ）。 （ポリマー） ポリマーＡ ５０部 （モノマー） ペンタエリスリトールテトラアクリレート ５０部 （光開始剤） イルガキュアー３６９（チバスペシャルティーケミカルズ） ２．２部 Ｎ，Ｎ−テトラエチル−４，４’−ジアミノベンゾフェノン ２．２部 （溶剤） プロピレングリコールモノメチルエーテル ４９２部 （重合禁止剤） ｐ−メトキシフェノール ０．１部 （界面活性剤） パーフルオロアルキルアルコキシレート ０．０１部Solution for forming a thin film layer: Styrene, methyl methacrylate, ethyl acrylate, acrylic acid, glycidyl methacrylate copolymer resin was used as a polymer (polymer A). The molecular weight is about 35,000 and the acid value is 110
It is. Parts are parts by weight (the same applies hereinafter). (Polymer) Polymer A 50 parts (Monomer) Pentaerythritol tetraacrylate 50 parts (Photoinitiator) Irgacure 369 (Chiba Specialty Chemicals) 2.2 parts N, N-tetraethyl-4,4'-diaminobenzophenone 2.2 Parts (solvent) Propylene glycol monomethyl ether 492 parts (polymerization inhibitor) p-methoxyphenol 0.1 part (surfactant) Perfluoroalkyl alkoxylate 0.01 part
【００２９】（実施例２）実施例１と同様の薄膜層形成
用溶液を用いて、端（辺）方向と同一方向で規則的に多
数の微細な凹凸形状（ピッチ１００μｍ、高低差２．０
μｍ）が加工された厚さ５０μｍのポリエチレンテレフ
タレート転写フィルムの凹凸形状上に、コンマコータで
６μｍの膜厚となるように塗布乾燥し薄膜層２を形成
し、カバーフィルムとしてポリエチレンフィルムを被覆
して積層フィルムを得た。次に、この積層フィルムの規
則的な多数の微細な凹凸形状の配列方向とラミネートロ
ールの円周方向を同じとし、積層フィルムの凹凸形状の
配列方向と基板の１辺方向が互いに交わるように、ガラ
ス基板を１０度傾けて薄膜層に接するようにカバーフィ
ルムを剥がしながら、ラミネータ（ロールラミネータＨ
ＬＭ１５００、日立化成テクノプラント株式会社製商品
名）を用いて、基板温度１００℃、ロール温度１００
℃、ロール圧力０．５９ＭＰａ（６ｋｇ／ｃｍ2）、速
度０．５ｍ／分でラミネートし、ガラス基板、薄膜層、
転写フィルムが積層された拡散反射板前駆基板を得た。
この拡散反射板前駆基板に、転写フィルムを介して薄膜
層が光硬化する光線（高圧水銀灯）を平行光露光機ＭＡ
Ｐ１２００Ｌ（大日本スクリーン製造株式会社製商品
名）を用いて１００ｍＪ／ｃｍ2露光した。この基板を
２４０℃、２０分間オーブン（クリーンオーブンＣＳＯ
−４０２、楠本化成株式会社製商品名）で加熱を行い、
室温まで冷却すると露光部分の光拡散性は保持された。
露光部分の凹凸の平均高低差は１.８μmであった。これ
にＡｌ薄膜をスパッタリング法により０.１μｍの厚み
になるよう積層し、反射膜７とした。これによって得ら
れた拡散反射板は、反射特性に優れ、カラーフィルタ画
素等を介して見てもモアレが見えず、反射型ＬＣＤ用拡
散反射板として使用可能であった。Example 2 Using the same thin film layer forming solution as in Example 1, a large number of fine irregularities (pitch 100 μm, height difference 2.0) in the same direction as the end (side) direction.
μm) is coated on a 50 μm-thick polyethylene terephthalate transfer film with a thickness of 6 μm and dried by coating with a comma coater to form a thin film layer 2, and a polyethylene film is coated as a cover film and laminated. A film was obtained. Next, the arrangement direction of the regular many fine irregularities of the laminated film and the circumferential direction of the laminate roll are the same, so that the arrangement direction of the irregularities of the laminated film and one side direction of the substrate intersect each other. While the cover film is peeled off by inclining the glass substrate by 10 degrees to be in contact with the thin film layer, a laminator (roll laminator H
Using LM 1500 (trade name, manufactured by Hitachi Chemical Technoplant Co., Ltd.), a substrate temperature of 100 ° C. and a roll temperature of 100 are used.
At a roll pressure of 0.59 MPa (6 kg / cm 2 ) at a speed of 0.5 m / min.
A diffuse reflection plate precursor substrate on which a transfer film was laminated was obtained.
A light (a high-pressure mercury lamp) in which the thin film layer is photocured via a transfer film is applied to the diffuse reflection plate precursor substrate through a parallel light exposure machine MA.
Exposure was performed at 100 mJ / cm 2 using P1200L (trade name, manufactured by Dainippon Screen Mfg. Co., Ltd.). The substrate is placed in an oven (clean oven CSO) at 240 ° C. for 20 minutes.
-402, heating by Kusumoto Kasei Co., Ltd.)
When cooled to room temperature, the light diffusion property of the exposed portion was maintained.
The average height difference of the unevenness of the exposed portion was 1.8 μm. An Al thin film was laminated thereon to a thickness of 0.1 μm by a sputtering method to form a reflection film 7. The diffuse reflector obtained in this way had excellent reflection characteristics, and no moiré was seen even when viewed through a color filter pixel or the like, and could be used as a diffuse reflector for a reflective LCD.
【００３０】[0030]
【発明の効果】本発明の拡散反射板、拡散反射板前駆基
板及びそれらの製造方法では、拡散反射板の規則的な凹
凸形状の少なくとも一つの配列方向と、基板のいずれか
一辺方向を互いに交わらせることによって、ディスプレ
イに搭載する際にカラーフィルタ画素パタン等の規則性
と拡散反射板の規則性が交わり、モアレのピッチが小さ
くなり見えなくなる。このようにして、良好な反射特性
を得るために凹凸形状が規則的に配列された拡散反射板
をディスプレイに搭載する際に発生するモアレを解消す
ることができる。According to the present invention, at least one arrangement direction of the regular uneven shape of the diffuse reflection plate and one side direction of the substrate cross each other. By doing so, when mounted on a display, the regularity of the color filter pixel pattern and the like and the regularity of the diffuse reflection plate intersect, and the pitch of moiré becomes small and invisible. In this way, it is possible to eliminate moiré generated when a diffuse reflection plate in which irregularities are regularly arranged in order to obtain good reflection characteristics is mounted on a display.
【図１】 本発明の拡散反射板の斜視図。FIG. 1 is a perspective view of a diffuse reflection plate of the present invention.
【図２】 本発明の拡散反射板前駆基板の製造に使用さ
れる積層フィルムの断面図。FIG. 2 is a cross-sectional view of a laminated film used for manufacturing a diffusion reflector precursor substrate of the present invention.
【図３】 本発明の拡散反射板の製造方法を説明する斜
視図。FIG. 3 is a perspective view illustrating a method for manufacturing a diffuse reflection plate according to the present invention.
【図４】 反射型ＬＣＤの構成を示す断面図。FIG. 4 is a cross-sectional view illustrating a configuration of a reflective LCD.
【図５】 本発明の規則的な多数の微細な凹凸形状の少
なくとも一つの配列方向を説明するための模式図。FIG. 5 is a schematic view for explaining at least one arrangement direction of a regular large number of fine irregularities according to the present invention.
【図６】 本発明の規則的な多数の微細な凹凸形状の少
なくとも一つの配列方向を説明するための模式図。FIG. 6 is a schematic diagram for explaining at least one arrangement direction of a large number of regular fine irregularities according to the present invention.
１．基板 ２．薄膜層 ３．転写フィルム ４．カバーフィルム ５．ラミネータロール ６．反射膜 ７．カラーフィルタ ８．透明電極 ９．平坦化膜 １０．ブラックマトリクス １１．配向膜 １２．液晶層 １３．スペーサ １４．位相差フィルム １５．偏光板 1. Substrate 2. 2. Thin film layer Transfer film 4. Cover film 5. Laminator roll 6. Reflective film 7. Color filter 8. Transparent electrode 9. Flattening film 10. Black matrix 11. Alignment film 12. Liquid crystal layer 13. Spacer 14. Retardation film 15. Polarizer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 健 茨城県つくば市和台48 日立化成工業株式 会社総合研究所内 (72)発明者 嶋崎 俊勝 茨城県つくば市和台48 日立化成工業株式 会社総合研究所内 (72)発明者 高根 信明 茨城県つくば市和台48 日立化成工業株式 会社総合研究所内 Ｆターム(参考） 2H042 BA04 BA12 BA15 BA20 DA01 DA11 DC02 DD01 2H091 FA02Y FA11X FA16Y FA35Y FC01 FC23 FD04 FD06 FD07 FD17 FD18 GA03 GA06 GA16 LA21 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Ken Yoshida 48 Wadai, Tsukuba, Ibaraki Prefecture Within Hitachi Chemical Co., Ltd. In-house (72) Inventor Nobuaki Takane 48 Wadai, Tsukuba, Ibaraki F-term in Hitachi Chemical Co., Ltd. Research Institute GA06 GA16 LA21
Claims (14)
有する薄膜層からなる拡散反射板において、規則的な多
数の微細な凹凸形状の少なくとも一つの配列方向と、基
板のいずれか一辺方向を互いに交わるようにした拡散反
射板。In a diffuse reflection plate comprising a substrate and a thin film layer having a large number of regular fine irregularities, at least one arrangement direction of a large number of regular fine irregularities and any one side direction of the substrate. Diffuse reflectors that intersect with each other.
とも一つの配列方向と、基板のいずれか一辺方向を互い
に３度以上の角度で交わるようにした請求項１に記載の
拡散反射板。2. The diffuse reflection plate according to claim 1, wherein at least one arrangement direction of a large number of regular fine irregularities crosses any one side direction of the substrate at an angle of 3 degrees or more.
反射膜を設けた請求項１または請求項２に記載の拡散反
射板。3. The diffuse reflection plate according to claim 1, wherein a reflection film is provided on the surface of a large number of regular fine irregularities.
を有する薄膜層と転写フィルムが順次積重ねられた拡散
反射板前駆基板において、転写フィルムの規則的な多数
の微細な凹凸形状の少なくとも一つの配列方向と、基板
のいずれか一辺方向を互いに交わるようにした拡散反射
板前駆基板。4. A diffuse reflection plate precursor substrate in which a thin film layer having a large number of regular fine irregularities and a transfer film are sequentially stacked on a substrate, wherein at least the regular large number of small irregularities of the transfer film are provided. A diffuse reflection plate precursor substrate in which one arrangement direction intersects any one side direction of the substrate.
薄膜層と転写フィルムが積重ねられた積層フィルムと基
板を、規則的な多数の微細な凹凸形状の少なくとも一つ
の配列方向と、基板のいずれか一辺方向が互いに交わる
ようにロールによる熱圧着を行う工程を含んで作製する
ことを特徴とする拡散反射板前駆基板の製造方法。5. A laminated film in which a thin film layer having a number of regular fine irregularities and a transfer film are stacked and a substrate are arranged in at least one arrangement direction of the regular number of fine irregularities, and A method for producing a diffusion reflection plate precursor substrate, characterized by including a step of performing thermocompression bonding using a roll so that any one of the sides intersects.
多数の微細な凹凸形状を有する転写フィルムの凹凸形状
の少なくとも一つの配列方向と、基板の表面に形成され
た薄膜層とを基板のいずれか一辺方向が互いに交わるよ
うにロールによる熱圧着を行う工程を含んで作製するこ
とを特徴とする拡散反射板前駆基板の製造方法。6. A thin film layer is formed on a surface of a substrate, and at least one arrangement direction of irregularities of a transfer film having a large number of regular fine irregularities is aligned with the thin film layer formed on the surface of the substrate. A method for producing a diffuse reflection plate precursor substrate, comprising: performing a step of performing thermocompression bonding using a roll such that any one side of the substrate intersects with each other.
射板前駆基板から転写フィルムを除去する工程を有する
拡散反射板の製造方法。7. A method for manufacturing a diffuse reflector, comprising the step of removing a transfer film from the diffuse reflector precursor substrate according to claim 5.
表面に反射膜を設ける工程を有する拡散反射板の製造方
法。8. A method for manufacturing a diffuse reflector, comprising the step of providing a reflective film on the surface of the thin film layer of the diffuse reflector obtained in claim 7.
が設けて有り、転写フィルムと反射膜の界面で転写フィ
ルムを除去する請求項７に記載の拡散反射板の製造方
法。9. The method according to claim 7, wherein a reflection film is provided on the uneven surface of the transfer film in advance, and the transfer film is removed at an interface between the transfer film and the reflection film.
る転写原型ロールに凹凸形状の少なくとも一つの配列方
向がロールの円周方向とほぼ同じである転写原型を作製
し、この転写原型の微細な凹凸形状を転写した転写フィ
ルムを作製する工程、転写フィルムの規則的な多数の微
細な凹凸形状を有する面に薄膜層を形成し積層フィルム
を作製する工程、積層フィルムの薄膜層側と基板をロー
ルによる熱圧着する工程、転写フィルムを除去する工程
を有する拡散反射板の製造方法であり、ロールの円周方
向とほぼ同じである積層フィルムの辺方向と基板のいず
れか一辺方向が交わるように熱圧着することを特徴とす
る拡散反射板の製造方法。10. A transfer prototype in which at least one arrangement direction of the concavo-convex shape is substantially the same as the circumferential direction of the roll is prepared on a transfer prototype roll having a large number of regular fine concavo-convex shapes. Process of preparing a transfer film on which various irregularities are transferred, forming a thin film layer on the surface of the transfer film having a number of regular fine irregularities to produce a laminated film, and removing the thin film layer side of the laminated film and the substrate. It is a method of manufacturing a diffuse reflection plate having a step of thermocompression bonding by a roll, a step of removing a transfer film, so that any one side direction of the substrate and a side direction of the laminated film that is substantially the same as the circumferential direction of the roll intersect. A method for producing a diffuse reflection plate, comprising thermocompression bonding.
る転写原型ロールに凹凸形状の少なくとも一つの配列方
向がロールの円周方向とほぼ同じである転写原型を作製
し、この転写原型の微細な凹凸形状を転写した転写フィ
ルムを作製する工程、基板に薄膜層を形成する工程、基
板に形成した薄膜層側と転写フィルムをロールによる熱
圧着する工程、転写フィルムを除去する工程を有する拡
散反射板の製造方法であり、ロールの円周方向とほぼ同
じである転写フィルムの辺方向と基板のいずれか一辺方
向が交わるように熱圧着することを特徴とする拡散反射
板の製造方法。11. A transfer master having at least one irregular shape substantially the same as the circumferential direction of the roll is formed on a transfer master roll having a large number of regular fine irregularities. Diffuse reflection including the steps of preparing a transfer film on which a concave-convex shape is transferred, forming a thin film layer on a substrate, thermocompression-bonding the thin film layer side formed on the substrate and the transfer film with a roll, and removing the transfer film. A method of manufacturing a diffuse reflection plate, comprising: performing thermocompression bonding so that a side direction of a transfer film, which is substantially the same as a circumferential direction of a roll, intersects any one side direction of a substrate.
る転写原型ロールに凹凸形状の少なくとも一つの配列方
向がロールの円周方向に対して一定角度を有する転写原
型を作製し、この転写原型の微細な凹凸形状を転写した
転写フィルムを作製する工程、転写フィルムの規則的な
多数の微細な凹凸形状を有する面に薄膜層を形成し積層
フィルムを作製する工程、積層フィルムの薄膜層側と基
板をロールによる熱圧着する工程、転写フィルムを除去
する工程を有する拡散反射板の製造方法であり、配列方
向がロールの円周方向に対して一定角度を有する積層フ
ィルムの辺方向と基板のいずれか一辺方向が前記熱圧着
するロール円周方向とほぼ同じになるように熱圧着する
ことを特徴とする拡散反射板の製造方法。12. A transfer master having at least one irregular pattern at a fixed angle with respect to the circumferential direction of the roll is formed on a transfer master roll having a large number of regular fine irregularities. A process of preparing a transfer film on which the fine irregularities are transferred, a process of forming a thin film layer on the surface of the transfer film having a large number of regular fine irregularities to produce a laminated film, and a thin film layer side of the laminated film. A method of manufacturing a diffuse reflection plate having a step of thermocompression-bonding a substrate by a roll and a step of removing a transfer film, wherein the arrangement direction is either the side direction of the laminated film having a fixed angle with respect to the circumferential direction of the roll or the substrate. A method of manufacturing a diffuse reflection plate, wherein thermocompression bonding is performed such that one side direction is substantially the same as the roll circumferential direction for thermocompression bonding.
る転写原型ロールに凹凸形状の少なくとも一つの配列方
向がロールの円周方向に対して一定角度を有する転写原
型を作製し、この転写原型の微細な凹凸形状を転写した
転写フィルムを作製する工程、基板に薄膜層を形成する
工程、基板に形成した薄膜層側と転写フィルムをロール
による熱圧着する工程、転写フィルムを除去する工程を
有する拡散反射板の製造方法であり、配列方向がロール
の円周方向に対して一定角度を有する転写フィルムの辺
方向と基板のいずれか一辺方向が前記熱圧着するロール
円周方向とほぼ同じになるように熱圧着することを特徴
とする拡散反射板の製造方法。13. A transfer master having at least one irregular arrangement at a fixed angle with respect to the circumferential direction of the roll is produced on a transfer master roll having a large number of regular fine irregularities. A process of producing a transfer film on which the fine irregularities are transferred, a process of forming a thin film layer on the substrate, a process of thermocompression bonding the thin film layer formed on the substrate and the transfer film by a roll, and a process of removing the transfer film. This is a method of manufacturing a diffuse reflection plate, wherein the arrangement direction has a fixed angle with respect to the circumferential direction of the roll, and the side direction of the transfer film and one side direction of the substrate are substantially the same as the circumferential direction of the roll to be thermocompression-bonded. A method for manufacturing a diffuse reflection plate, comprising thermocompression bonding.
転写フィルムの凹凸面に反射膜を設ける工程を有し、転
写フィルムを除去する工程において転写フィルムの凹凸
面と反射膜の界面から転写フィルムを除去する請求項１
０ないし請求項１３のいずれかに記載の拡散反射板の製
造方法。14. After the step of producing a transfer film,
2. The method according to claim 1, further comprising the step of providing a reflective film on the uneven surface of the transfer film, wherein the step of removing the transfer film removes the transfer film from an interface between the uneven surface of the transfer film and the reflective film.
A method for producing a diffuse reflection plate according to any one of claims 0 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37208399A JP2001188110A (en) | 1999-12-28 | 1999-12-28 | Diffuse reflective plate, precursory substrate of same and method for producing those |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37208399A JP2001188110A (en) | 1999-12-28 | 1999-12-28 | Diffuse reflective plate, precursory substrate of same and method for producing those |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001188110A true JP2001188110A (en) | 2001-07-10 |
Family
ID=18499825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37208399A Pending JP2001188110A (en) | 1999-12-28 | 1999-12-28 | Diffuse reflective plate, precursory substrate of same and method for producing those |
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| Country | Link |
|---|---|
| JP (1) | JP2001188110A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003043477A (en) * | 2001-08-02 | 2003-02-13 | Hitachi Chem Co Ltd | Diffuse reflection plate, transfer original pattern used to manufacture the same, transfer base film, transfer film, and method for manufacturing diffuse reflection plate |
| JP2010230714A (en) * | 2009-03-25 | 2010-10-14 | Fujifilm Corp | Optical sheet and method for manufacturing the same |
| JP2011018006A (en) * | 2009-07-07 | 2011-01-27 | Toray Advanced Materials Korea Inc | Method for manufacturing lens shape of roll for optical film manufacturing and roll for optical film manufacturing with lens shape formed by the method |
| WO2013179649A1 (en) * | 2012-05-30 | 2013-12-05 | 株式会社デンソー | Screen member and heads-up display apparatus |
| WO2022059656A1 (en) * | 2020-09-15 | 2022-03-24 | 大日本印刷株式会社 | Optical film and display device |
-
1999
- 1999-12-28 JP JP37208399A patent/JP2001188110A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003043477A (en) * | 2001-08-02 | 2003-02-13 | Hitachi Chem Co Ltd | Diffuse reflection plate, transfer original pattern used to manufacture the same, transfer base film, transfer film, and method for manufacturing diffuse reflection plate |
| JP2010230714A (en) * | 2009-03-25 | 2010-10-14 | Fujifilm Corp | Optical sheet and method for manufacturing the same |
| JP2011018006A (en) * | 2009-07-07 | 2011-01-27 | Toray Advanced Materials Korea Inc | Method for manufacturing lens shape of roll for optical film manufacturing and roll for optical film manufacturing with lens shape formed by the method |
| TWI383884B (en) * | 2009-07-07 | 2013-02-01 | Toray Advanced Mat Korea Inc | A method of producing lens pattern on roll for producing optical film and roll for producing optical film with the lens pattern therefrom |
| US8510951B2 (en) | 2009-07-07 | 2013-08-20 | Toray Advanced Materials Korea Inc. | Method for producing a lens pattern on roll |
| WO2013179649A1 (en) * | 2012-05-30 | 2013-12-05 | 株式会社デンソー | Screen member and heads-up display apparatus |
| US9417451B2 (en) | 2012-05-30 | 2016-08-16 | Denso Corporation | Screen member and head-up display apparatus |
| WO2022059656A1 (en) * | 2020-09-15 | 2022-03-24 | 大日本印刷株式会社 | Optical film and display device |
| JPWO2022059656A1 (en) * | 2020-09-15 | 2022-03-24 | ||
| JP7148903B2 (en) | 2020-09-15 | 2022-10-06 | 大日本印刷株式会社 | Optical film and display device |
| JP2022188099A (en) * | 2020-09-15 | 2022-12-20 | 大日本印刷株式会社 | Optical film and display device |
| JP7501581B2 (en) | 2020-09-15 | 2024-06-18 | 大日本印刷株式会社 | Optical film and display device |
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