JPH02135431A - Manufacture of lenticular projection screen - Google Patents
Manufacture of lenticular projection screenInfo
- Publication number
- JPH02135431A JPH02135431A JP63290889A JP29088988A JPH02135431A JP H02135431 A JPH02135431 A JP H02135431A JP 63290889 A JP63290889 A JP 63290889A JP 29088988 A JP29088988 A JP 29088988A JP H02135431 A JPH02135431 A JP H02135431A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- sheet
- light
- flat surface
- lens
- 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 11
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 230000031700 light absorption Effects 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 238000006303 photolysis reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 241000219739 Lens Species 0.000 description 59
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 238000007639 printing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010017 direct printing Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000007447 staining method Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、表面に光取光性の線条凸部を備え、裏面に平
坦面を備えたレンチキュラーレンズシートの平坦面に、
光吸収性のブラックストライプ模様を形成するための方
法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides for a lenticular lens sheet having light-extracting linear convex portions on its front surface and a flat surface on its back surface.
The present invention relates to a method for forming a light-absorbing black stripe pattern.
（従来の技術）
透過型の映写スクリーンとして、映像の明るさを強調す
るためにレンチキュラーレンズシートを用いることは従
来より公知である。又、シャドウ部の濃度を上げ、投影
画像のコントラストを高めるために、レンチキュラーレ
ンズ（以下レンチレンズという）の平坦面に光吸収性の
ブラックストライプを形成することも従来より公知であ
る。又、表面に光取光性の線条凸部を備えたレンチレン
ズを用いた透過型映写スクリーンの映像観察側の平坦面
に、表面線条凸部の線条方向と同一方向に外光による表
面反射による映像のコントラストの低下を防ぐために設
けられる線条の光吸収層を形成する方法として、印刷に
て直接レンチレンズの平坦面に黒色インキによりブラッ
クストライプを形成する方法や、光透過性のプラスチッ
クシートにブラックストライプ模様を印刷したものをレ
ンチレンズシートに貼り合わせる方法、あるいはレンチ
キュラーレンズシートのレンズ平坦面に染色マスク用の
ネガ型（光硬化型）感光剤を塗布し、凸部側より露光し
て現像処理し、露光された硬化部分をマスクパターンと
して黒色など光吸収性の色調に染色処理する方法などは
公知である。しかし、直接印刷する方法は、表面のレン
チレンズの線条凸部と裏面に印刷するブラックストライ
プの線条との見当の整合がきわめて困難であり、又、レ
ンチレンズの平坦面にブラックストライプを印刷したプ
ラスチックシートを貼り合わせる方法も、熟練を要し、
印刷方法と同じく貼り合わせの見当整合が困難である。(Prior Art) It has been known to use a lenticular lens sheet as a transmission type projection screen in order to emphasize the brightness of an image. It has also been conventionally known to form light-absorbing black stripes on the flat surface of a lenticular lens (hereinafter referred to as lenticular lens) in order to increase the density of the shadow portion and the contrast of the projected image. In addition, the flat surface on the image observation side of a transmission projection screen using a wrench lens with light-transmitting striated convex portions on the surface is exposed to external light in the same direction as the striated direction of the surface striated convex portions. As a method of forming a linear light absorption layer provided to prevent a decrease in image contrast due to surface reflection, there is a method of printing a black stripe directly on the flat surface of a lenticular lens using black ink, and a method of forming a black stripe with black ink directly on the flat surface of a lenticular lens. A method is to print a black stripe pattern on a plastic sheet and attach it to the lenticular lens sheet, or to apply a negative (light curing type) photosensitive agent for dyeing mask to the lens flat surface of the lenticular lens sheet and expose it from the convex side. There is a known method in which the exposed cured portion is used as a mask pattern and dyed in a light-absorbing color such as black. However, with the direct printing method, it is extremely difficult to match the registration between the linear protrusions of the front side of the wrench lens and the black stripes printed on the back side, and the black stripe is printed on the flat side of the wrench lens. The method of pasting together the plastic sheets also requires skill.
As with the printing method, registration alignment during lamination is difficult.
又、染色法についても、染色濃度が得られないなどの不
都合があった。Furthermore, the staining method also had disadvantages such as the inability to obtain staining density.
（発明の目的）
本発明は、上記製造方法の欠点を解消し、容易に製）告
できるようにすることを目的とするものである。(Object of the Invention) The object of the present invention is to eliminate the drawbacks of the above-mentioned manufacturing method and to enable easy manufacturing and advertising.
（発明の構成）
本発明は、表面に収光性の線条凸部を備え裏面に平坦面
を備えたレンチキュラーレンズシートに線条の光吸収層
を形成する方法において、レンズシート１平坦面３にポ
ジ型感光剤を塗布して感光層６を形成し、該層６上に光
吸収層７を全面に形成して乾燥復、光吸収層７上に前記
レンズシート１と感光層６との間の接着力より弱い接着
力にて剥離シート８を全面的に貼着し、しかる前又は後
に、前記レンズシート１のレンズ凸部２側からの線条の
紫外光により前記感光層６を露光して光分解処理し且つ
必要に応じて現像処理し、続いて該剥離シート８を剥離
することにより光分解した感光領域９の感光層６を除去
してレンズシート１の平坦面３に線条の光吸収層７を形
成することを特徴とするレンチキュラー型映写スクリー
ンの製造方法である。(Structure of the Invention) The present invention provides a method for forming a linear light-absorbing layer on a lenticular lens sheet having a light-absorbing linear convex portion on the front surface and a flat surface on the back surface. A positive photosensitive agent is applied to form a photosensitive layer 6, and a light absorption layer 7 is formed on the entire surface of the layer 6. After drying, the lens sheet 1 and the photosensitive layer 6 are formed on the light absorption layer 7. A release sheet 8 is attached to the entire surface with an adhesive force that is weaker than the adhesive force between the lenses, and before or after that, the photosensitive layer 6 is exposed to linear ultraviolet light from the side of the lens convex portion 2 of the lens sheet 1. Then, the release sheet 8 is peeled off to remove the photosensitive layer 6 in the photosensitive area 9 that has been photodecomposed, and to form a line on the flat surface 3 of the lens sheet 1. This method of manufacturing a lenticular projection screen is characterized in that a light absorption layer 7 is formed.
（発明の作用）
本発明は、レンチレンズの平坦面側に全面的に感光層と
光吸収層とを設け、レンチレンズ表面にある収光性の線
条凸部側から紫外光を照射して、レンチレンズの収光性
凸部により線条となった紫外光を前記感光層に対し露光
照射して光分解処理し、アルカリ可溶性となった該感光
層を剥離シトを介して剥離除去することによって、レン
チレンズの平坦面に線条の光吸収層を形成することがで
きるものであり、レンチレンズと光吸収層との印刷見当
整合、あるいは貼り合わせの見当整合などの面倒な処理
が不要であり、単にレンチレンズに対する露光照射によ
って、後は剥離するのみでレンチレンズの線条凸部に精
度良く対応した光吸収層をレンチレンズの平坦面に形成
することが可能となるものである。又、本発明方法によ
れば、ウェア状に成型されたレンチレンズシートを用い
て連続的に、感光層及び光吸収層の塗布、剥離シート貼
り合わせ、剥離処理などを行なって映写スクリーンを一
ラインにて製造することも可能になる。(Function of the Invention) The present invention provides a photosensitive layer and a light absorption layer on the entire flat surface side of a lenticular lens, and irradiates ultraviolet light from the light-converging linear convex portion on the surface of the lenticular lens. , exposing and irradiating the photosensitive layer with ultraviolet light that has become streaks due to the light-converging convex portion of the lenticular lens, subjecting the photosensitive layer to photodecomposition treatment, and peeling and removing the photosensitive layer that has become alkali-soluble through a peeling sheet. By this method, a linear light absorption layer can be formed on the flat surface of a lenticular lens, and there is no need for troublesome processes such as printing register alignment between the lenticular lens and the light absorption layer, or registration alignment during bonding. By simply exposing the wrench lens to light and then peeling it off, it is possible to form a light absorption layer that corresponds precisely to the linear convex portions of the wrench lens on the flat surface of the wrench lens. Furthermore, according to the method of the present invention, the projection screen is formed in one line by sequentially applying a photosensitive layer and a light absorbing layer, pasting a release sheet, and peeling the film using a lenticular lens sheet formed into a wear shape. It is also possible to manufacture it in
（実施例） 本発明方法を実施例に従って詳細に説明する。(Example) The method of the present invention will be explained in detail according to examples.
第１図は、表面に光取光性の線条のレンズ凸部２、裏面
に平坦面３を備えたポリ塩化ビニル、スチレンなどの透
明な樹脂製レンチキュラーレンズシート１の斜視図であ
り、該レンチキュラーレンズシート１ （以下レンチレ
ンズシートという）の平坦面３側に、第２図（イ）に示
すように全面的に例えばジアゾ系のポジ型感光性樹脂を
塗布して、ポジ型感光性樹脂による感光層６を形成する
。第２図（ロ）は、微細な凹凸の光拡散面３ａをδｐけ
たレンズシート１の平坦面３に感光層６を設けたもので
、（ハ）は光拡散性シート２ａを貼り合わせたレンズシ
ート１の平坦面３に感光層６を設けたものである。続い
て第３図に示すように該レンチレンズシート１に塗布さ
れた感光層６上に全面的に黒色、あるいは暗色系の印刷
インキを用いてベタ印刷して仝而に光吸収層７を形成す
る。次に、第４図、レンチレンズシート１の光取光性の
線条凸部２側より全面的に紫外光を照射する。紫外光は
、該レンズ凸部２にて一定幅の線条の照射光に収束して
、該凸部２と相対する平坦面３側をストライプ状に照射
する。照射された平坦面３のポジ型感光樹脂の感光層６
における感光領域９は、紫外光によりアルカリ可溶性の
樹脂に分解される。次に、該レンチレンズシート１をア
ルカリ性の現像液に浸漬し、光照射された感光領域９の
感光層６を光吸収層７を透して膨潤、あるいは半溶解す
る。次に、第５図、該感光層６を半乾燥状態あるいは乾
燥状態にした後、該光吸収層７上に、粘着剤を塗布した
樹脂製、紙製などの剥離シート８、あるいは多孔性シー
ト、織布なと通水性の剥離シート８を該粘着剤を介して
所定のニップロール間を通過させて貼着する。そして、
第６図、剥離シート８をレンチレンズシート１側より剥
離する。そして剥離シート８側に貼着した状態で剥離さ
れる光照射された感光領域９を、レンチレンズシート１
側より剥離することによって、レンズ凸部２と相対する
平坦面３の光吸収層７は除去され、一方、レンズ谷部４
に相対する位置の平坦面には感光層６が残り、第７図の
ように線状の光吸収層７が設けられるものである。そし
て、線状の光吸収層７が得られたレンチレンズシート１
は、例えば光吸収層７側を７０〜１００℃前後に加熱定
着処理し、映写スクリーンを得るものである。 本発明
方法の上記実施例においては、レンズ凸部２側からの感
光層６に対する光照射の後に、現像装置の現像液に浸漬
して、光照射された感光層６を膨潤あるいは半溶解させ
るものであるが、この現像液への浸漬処理は、必要に応
じて適宜実施するものであり、感光層６を形成する感光
性樹脂の種類によっては省略することも可能である。FIG. 1 is a perspective view of a lenticular lens sheet 1 made of a transparent resin such as polyvinyl chloride or styrene, which has a light-transmitting linear lens convex portion 2 on the front surface and a flat surface 3 on the back surface. As shown in FIG. 2(a), a positive-type photosensitive resin such as diazo type is applied over the entire surface of the flat surface 3 of the lenticular lens sheet 1 (hereinafter referred to as a lenticular lens sheet) to form a positive-type photosensitive resin. A photosensitive layer 6 is formed. Figure 2 (b) shows a lens in which a photosensitive layer 6 is provided on the flat surface 3 of the lens sheet 1, which is δp apart from the light diffusing surface 3a having fine irregularities, and (c) shows a lens with a light diffusing sheet 2a pasted thereon. A photosensitive layer 6 is provided on a flat surface 3 of a sheet 1. Subsequently, as shown in FIG. 3, the entire surface of the photosensitive layer 6 coated on the lenticular lens sheet 1 is printed using black or dark color printing ink to form a light absorption layer 7. do. Next, as shown in FIG. 4, the entire surface of the lenticular lens sheet 1 is irradiated with ultraviolet light from the light-extracting linear convex portion 2 side. The ultraviolet light is converged into a linear irradiation light having a constant width at the lens convex portion 2, and irradiates the flat surface 3 side facing the convex portion 2 in a stripe shape. Photosensitive layer 6 of positive photosensitive resin on the irradiated flat surface 3
The photosensitive area 9 in is decomposed into an alkali-soluble resin by ultraviolet light. Next, the lenticular lens sheet 1 is immersed in an alkaline developer to swell or semi-dissolve the photosensitive layer 6 in the irradiated photosensitive area 9 through the light absorbing layer 7. Next, as shown in FIG. 5, after the photosensitive layer 6 is brought into a semi-dry or dry state, a release sheet 8 made of resin or paper coated with an adhesive or a porous sheet is placed on the light absorption layer 7. A water-permeable release sheet 8, such as a woven fabric, is pasted by passing it between predetermined nip rolls via the adhesive. and,
In FIG. 6, the release sheet 8 is peeled off from the lenticular lens sheet 1 side. Then, the light-irradiated photosensitive area 9, which is peeled off while being attached to the release sheet 8 side, is attached to the lenticular lens sheet 1.
By peeling from the side, the light absorption layer 7 on the flat surface 3 facing the lens convex portion 2 is removed, while the lens trough 4 is removed.
A photosensitive layer 6 remains on the flat surface at a position opposite to , and a linear light absorbing layer 7 is provided as shown in FIG. Then, the lenticular lens sheet 1 from which the linear light absorption layer 7 was obtained
For example, the light absorption layer 7 side is heat-fixed at about 70 to 100° C. to obtain a projection screen. In the above embodiment of the method of the present invention, after the photosensitive layer 6 is irradiated with light from the side of the lens convex portion 2, the photosensitive layer 6 is immersed in a developer of a developing device to swell or semi-dissolve the irradiated photosensitive layer 6. However, this immersion treatment in the developer is carried out as appropriate, and may be omitted depending on the type of photosensitive resin forming the photosensitive layer 6.
又、本発明方法の上記実施例においては、レンチレンズ
シート１のレンズ凸部２側からの感光層６への紫外光照
射を行なった後に、剥離シート８を貼り合わせるもので
あるが、剥離シート８を光吸収層７上に貼り合わせた後
に、レンズ凸部２側からの光照射、あるいは光照射及び
現像液への浸漬処理を行なうようにすることも可能であ
り、特に光照射した後に現像液への浸漬処理を行なう方
法の場合は、剥離シート８として多孔性シート、又は織
布なと通水性の剥離シート８を用いることが望ましい。Further, in the above embodiment of the method of the present invention, after the photosensitive layer 6 of the lenticular lens sheet 1 is irradiated with ultraviolet light from the lens convex portion 2 side, the release sheet 8 is attached. 8 on the light-absorbing layer 7, it is also possible to perform light irradiation from the side of the lens convex portion 2, or light irradiation and immersion in a developer. In the case of a method of performing immersion treatment in a liquid, it is desirable to use a porous sheet or a water-permeable release sheet 8 such as a woven fabric as the release sheet 8.
又、剥離シートと光吸収層７との貼り合わせには、粘着
剤の他に、レンチレンズシート１に対して離型性のある
少量の離型剤を添加した溶剤揮散型接着剤及びエマルジ
ョン型接着剤などを使用することができる。又、本発明
方法の実施例としてレンチレンズシート１上には、感光
性樹脂による感光層６と黒色インキによる光吸収層７を
積層形成するものであるが例えば、黒色着色材を感光層
６に混合して光吸収層７とすることができる。In addition, for bonding the release sheet and the light absorption layer 7, in addition to the adhesive, a solvent-vaporizable adhesive or an emulsion-type adhesive containing a small amount of a release agent that has release properties for the lentil lens sheet 1 is used. Adhesive etc. can be used. Further, as an embodiment of the method of the present invention, a photosensitive layer 6 made of a photosensitive resin and a light absorption layer 7 made of black ink are laminated on the lenticular lens sheet 1. For example, a black coloring material is applied to the photosensitive layer 6. The light absorption layer 7 can be prepared by mixing them.
第８図は、本発明方法を一ライン上にて実施する場合の
製造工程の概要側面図であり、１１は長巻状のレンズシ
ート１の表面にレンズ凸部２を形成する成型機、１２は
レンズ平坦面３に感光層６を形成するための感光剤塗布
機、１３は光吸収剤塗１′５機、１４は剥離シート８を
貼り合わせる貼り合わせ機、１５は紫外光をレンズ凸部
２側から感光層６に照射するための露光機、１６は感光
層６の現像機、１７は剥離シートをレンズシート１側よ
り剥離するための剥離機、１８は加熱定＠機、１９は線
状の光吸収層７を平坦面３側に形成した長巻状レンズシ
ート１を、枚葉シート状にカッティングするためのシー
ト断裁機である。FIG. 8 is a schematic side view of the manufacturing process when the method of the present invention is carried out on one line, in which 11 is a molding machine that forms lens convex portions 2 on the surface of a long-wound lens sheet 1; 1 is a photosensitive agent coating machine for forming the photosensitive layer 6 on the lens flat surface 3; 13 is a light absorbing agent coating machine 1'5; 14 is a laminating machine for laminating the release sheet 8; 15 is a coating machine for applying ultraviolet light to the convex portion of the lens. 16 is a developing machine for the photosensitive layer 6, 17 is a peeling machine for peeling off the release sheet from the lens sheet 1 side, 18 is a heating machine, and 19 is a wire This is a sheet cutting machine for cutting a long-wound lens sheet 1 having a shaped light absorption layer 7 formed on the flat surface 3 side into single sheets.
（発明の効果）
本発明方法は、レンチレンズシートの平坦面に、光学的
処理によりストライプ状の光吸収層を形成する方法であ
り、従来の直接印刷方式や貼り合わせ方式に比較してレ
ンズ凸部と光吸収層との見当整合や位置合わせが容易で
あり、又、光照射量を変えることによって、光吸収層の
幅の微量の調整が可能である。又、染色マスクパターン
を用いた従来の染色法よりも製造処理が容易であり、又
、光吸収層の膜厚を厚く形成でき、高濃度の光吸収層が
得られるなどの長所を有するものでおる。(Effects of the Invention) The method of the present invention is a method of forming a striped light absorption layer on the flat surface of a lenticular lens sheet by optical processing, and the lens has a convex shape compared to the conventional direct printing method or bonding method. It is easy to register and position the light absorbing layer and the light absorbing layer, and by changing the amount of light irradiation, the width of the light absorbing layer can be slightly adjusted. In addition, the manufacturing process is easier than the conventional dyeing method using a dye mask pattern, and the light absorption layer can be formed thicker, resulting in a highly concentrated light absorption layer. is.
第１図は本発明方法を説明するレンチキュラーレンズシ
ートの斜視図、第２図及び第３図及び第４図及び第５図
及び第６図は本発明方法を説明するレンチキュラーレン
ズシートの側面図、第７図は本発明方法により得られる
レンチキュラー型映写スクリーンの側面図、第８図は本
発明方法を実施するための製造装置の概要側面図である
。FIG. 1 is a perspective view of a lenticular lens sheet for explaining the method of the present invention; FIGS. 2, 3, 4, 5, and 6 are side views of a lenticular lens sheet for explaining the method of the present invention; FIG. 7 is a side view of a lenticular projection screen obtained by the method of the present invention, and FIG. 8 is a schematic side view of a manufacturing apparatus for carrying out the method of the present invention.
Claims (1)
レンチキュラーレンズシートに線条の光吸収層を形成す
る方法において、レンズシート平坦面にポジ型感光剤を
塗布して感光層を形成し、該層上に光吸収層を全面に形
成して乾燥後、光吸収層上に前記レンズシートと感光層
との間の接着力より弱い接着力にて剥離シートを全面的
に貼着し、しかる貼着前又は後に前記レンズシートのレ
ンズ凸部側からの線条の紫外光により前記感光層を露光
して光分解処理し且つ必要に応じて現像処理し、続いて
該剥離シートを剥離することにより光分解した感光領域
の感光層を除去してレンズシートの平坦面に線条の光吸
収層を形成することを特徴とするレンチキュラー型映写
スクリーンの製造方法。In a method of forming a linear light-absorbing layer on a lenticular lens sheet having light-absorbing linear protrusions on the surface and a flat surface on the back surface, a positive photosensitive agent is applied to the flat surface of the lens sheet to form the photosensitive layer. After forming a light absorption layer on the entire surface and drying, a release sheet is pasted on the entire surface of the light absorption layer with an adhesive force weaker than the adhesive force between the lens sheet and the photosensitive layer. Before or after adhesion, the photosensitive layer is exposed to linear ultraviolet light from the lens convex side of the lens sheet to perform a photodecomposition treatment, and if necessary, a development treatment, and then the release sheet is 1. A method for manufacturing a lenticular projection screen, which comprises removing a photosensitive layer in a photosensitive area that has been photodecomposed by peeling off the film, thereby forming a linear light absorption layer on a flat surface of a lens sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290889A JPH02135431A (en) | 1988-11-17 | 1988-11-17 | Manufacture of lenticular projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290889A JPH02135431A (en) | 1988-11-17 | 1988-11-17 | Manufacture of lenticular projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135431A true JPH02135431A (en) | 1990-05-24 |
Family
ID=17761822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63290889A Pending JPH02135431A (en) | 1988-11-17 | 1988-11-17 | Manufacture of lenticular projection screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770902A1 (en) | 1995-10-25 | 1997-05-02 | Toppan Printing Co., Ltd. | Lenticular sheet, rear-projection screen or television using the same, and fabrication method for said lenticular sheet |
| EP1840602A1 (en) * | 2006-03-28 | 2007-10-03 | Samsung SDI Co., Ltd. | Filter, plasma display device including the same and method of manufacturing the filter |
-
1988
- 1988-11-17 JP JP63290889A patent/JPH02135431A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770902A1 (en) | 1995-10-25 | 1997-05-02 | Toppan Printing Co., Ltd. | Lenticular sheet, rear-projection screen or television using the same, and fabrication method for said lenticular sheet |
| EP1840602A1 (en) * | 2006-03-28 | 2007-10-03 | Samsung SDI Co., Ltd. | Filter, plasma display device including the same and method of manufacturing the filter |
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