JP2584125B2 - screen - Google Patents
screenInfo
- Publication number
- JP2584125B2 JP2584125B2 JP2303588A JP30358890A JP2584125B2 JP 2584125 B2 JP2584125 B2 JP 2584125B2 JP 2303588 A JP2303588 A JP 2303588A JP 30358890 A JP30358890 A JP 30358890A JP 2584125 B2 JP2584125 B2 JP 2584125B2
- Authority
- JP
- Japan
- Prior art keywords
- screen
- sound
- thin film
- present
- woven
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は映像投射用スクリーンに関するものである。Description: TECHNICAL FIELD The present invention relates to an image projection screen.
従来の技術 近年、ビデオ映像技術の向上により家庭でも大画面を
用いた映画の上映を行うことが可能になってきた。これ
にともない音響装置も大画面にふさわしい迫力と音質を
要求されるようになり、第７図に示すように投射装置
５、スクリーン10と組み合わせて、前方に主としてせり
ふを主体に録音されたチャンネルに対応して中央スピー
カ３、背景音楽が録音されたチャンネルに対応して左ス
ピーカ2,右スピーカ４の合計３本のスピーカと、後方ま
たは側方に１本あるいは２本の音場用スピーカを備えた
AVシステムとして提供されるようになってきた。2. Description of the Related Art In recent years, it has become possible to show a movie on a large screen at home even with the improvement of video image technology. Along with this, the sound device has also been required to have the power and sound quality appropriate for a large screen, and in combination with the projection device 5 and the screen 10 as shown in FIG. Correspondingly, a center speaker 3, a left speaker 2 and a right speaker 4 corresponding to the channel on which the background music is recorded, and a total of three speakers, and one or two sound field speakers at the rear or side. Was
It has been provided as an AV system.
一方、スクリーン10は一般に第８図に示す斜視断面図
のように、塩化ビニルシート10aの表面に白色塗料10bと
ガラスビーズ10cなどの反射材料を塗布した構成になっ
ており、それ自身の音響透過性はない。On the other hand, the screen 10 has a structure in which a reflective material such as a white paint 10b and glass beads 10c is applied to the surface of a vinyl chloride sheet 10a as shown in a perspective sectional view shown in FIG. There is no sex.
発明が解決しようとする課題 従来のスクリーンは音響透過性がないため、第７図に
示すようなAVシステムにおいては中央スピーカ３は劇場
のようにスクリーン背面側に設置することができない。
従って前面から投射される投射光に対して障害とならな
い位置に設置する以外に方法がなく、設置場所に制限を
受けるだけでなく、特にせりふの再生において、画面位
置と音響位置が大きくずれてしまい迫力不足を招く要因
となっていた。Problems to be Solved by the Invention Since the conventional screen has no sound transmission, in the AV system as shown in FIG. 7, the center speaker 3 cannot be installed on the back side of the screen like a theater.
Therefore, there is no other way than to install it in a position where it does not hinder the projected light projected from the front, and it is not only limited to the installation location, but also the screen position and the acoustic position are greatly displaced, especially when playing dialogue. It was a cause of lack of power.
こうした問題を解決するために、第９図のようにスク
リーンに一定の割合で音孔10dを有した例が実用化され
ているが、一般に通気度が略40（JIS規格1096 6.27.1 A
法に定められた通気度テスト方法に基き、フラジール形
試験機によって測定された値、単位cm3/cm2・ｓ、以下
同じ）程度しかない。第６図に示すように、通気度100
以上の音圧透過特性11bに対して通気度40の音圧透過特
性12はその特性が悪い。音圧透過特性をよくするために
は音孔が大きく、かつ、数を多くすればよい。しかし劇
場のように視聴者とスクリーンの距離が離れている場合
は問題とならないが、家庭用のように比較的至近距離で
視聴する場合には、この音孔10dが黒点に見えるという
視覚的な問題が発生する。こうした場合を解決するため
に一定の通気度を持った織編物をスクリーンの構成材料
とすることが考えられる。織り編物であれば目を細かく
しても通気性を確保することができるので、音孔を有し
たスクリーンのような問題点は解決することが可能であ
る。しかしながら、通気度の良さは音響透過性に比例す
る一方で光に対しても透過性を持たせることになる。こ
の場合、第10図の動作概念図に示すように透過した投射
光９がスクリーン背面の壁面７などで反射して反射光9a
としてスクリーンの裏側から糸を通じて再び投射面側に
戻るため、画面のコントラストが劣化するなど視覚上の
課題を有していた。In order to solve such a problem, an example in which a screen has sound holes 10d at a fixed rate as shown in FIG. 9 has been put to practical use, but generally the air permeability is approximately 40 (JIS standard 1096 6.27.1 A).
Based on the air permeability test method specified by law, the value is only about the value measured by a Frazier-type tester (unit: cm 3 / cm 2 · s, the same applies hereinafter). As shown in FIG.
The sound pressure transmission characteristic 12 having the air permeability of 40 is inferior to the above sound pressure transmission characteristic 11b. In order to improve the sound pressure transmission characteristics, the sound holes should be large and the number should be large. However, when the distance between the viewer and the screen is large, such as in a theater, this is not a problem, but when viewing at a relatively short distance, such as for home use, this sound hole 10d looks like a black dot. Problems arise. In order to solve such a case, it is conceivable to use a woven or knitted fabric having a constant air permeability as a constituent material of the screen. With a woven or knitted fabric, the air permeability can be ensured even if the eyes are fine, so that problems such as a screen having sound holes can be solved. However, while good air permeability is proportional to sound transmittance, it also allows light to pass through. In this case, as shown in the operation conceptual diagram of FIG. 10, the transmitted projection light 9 is reflected by the wall surface 7 on the rear surface of the screen and the like, and the reflected light 9a
As a result, since the screen returns to the projection surface side through the thread from the back side of the screen, there is a visual problem such as deterioration of the screen contrast.
本発明は上記課題を解決するために、音響透過性に優
れていることはもとより、コントラスト等の視覚性能能
にも優れたスクリーンを提供することを目的としてい
る。An object of the present invention is to provide a screen which is excellent not only in sound transmission but also in visual performance such as contrast, in order to solve the above problems.
課題を解決するための手段 上記目的を達成するために本発明のスクリーンは、片
面に反対面より濃色の着色薄膜形成処理を施した通気度
が概100以上の通気性のある織編物を構成材料とし、上
記の着色薄膜形成処理を施していない側の面を投射面と
するように構成している。Means for Solving the Problems In order to achieve the above object, the screen of the present invention comprises a breathable woven or knitted fabric having a permeability of about 100 or more subjected to a treatment of forming a darker colored thin film on one side than the other side. The surface on the side on which the above-mentioned colored thin film forming process is not performed is used as a projection surface.
作用 本発明は上記した構成により音響透過性に優れている
ことはもちろん、コントラスト等の視覚性能にも優れて
いる。Action The present invention is not only excellent in sound transmittance due to the above configuration, but also excellent in visual performance such as contrast.
実施例 以下、本発明の一実施例について、図面を参照しなが
ら説明する。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例におけるスクリーンの生地
の斜視断面図、第２図は本発明のスクリーンを用いたAV
システムの正面概念図、第３図は本発明のスクリーンを
用いたAVシステムの斜視概念図、第４図は本発明のスク
リーンの動作概念図、第５図は本発明のスクリーンに垂
直に入射する音波の透過特性である。第６図は一般的な
生地の通気度と音響透過特性の関係図である。FIG. 1 is a perspective sectional view of a screen fabric in one embodiment of the present invention, and FIG. 2 is an AV using the screen of the present invention.
FIG. 3 is a perspective conceptual diagram of an AV system using the screen of the present invention, FIG. 4 is a conceptual diagram of the operation of the screen of the present invention, and FIG. 5 is vertically incident on the screen of the present invention. This is a sound transmission characteristic. FIG. 6 is a diagram showing the relationship between the air permeability and sound transmission characteristics of general cloth.
第１図において1aで示される側は概白色の糸によって
編まれた面、1bで示される側は上記の糸に着色薄膜が通
気性を損なうことのないように被覆された面である。In FIG. 1, the side indicated by 1a is a surface knitted by a substantially white yarn, and the side indicated by 1b is a surface where the above-mentioned yarn is coated with a colored thin film so as not to impair air permeability.
上記のように構成された生地を構成材料としたスクリ
ーン１を用いてAVシステムを第２図，第３図のように配
置した場合の動作を説明する。The operation in the case where the AV system is arranged as shown in FIGS. 2 and 3 using the screen 1 made of the fabric as described above will be described.
第４図に示すようにスクリーン１の背面に設置したス
ピーカ2,3,4からの音波８は特性の劣化をあまり生じる
ことなくスクリーン１を透過して視聴者６に届くため、
視聴者６に対し特にせりふの再生に対し画面位置と音響
位置が一致して劇場用システムと同様の迫力のある映像
音響効果が得られる。一方、スクリーン１に投射された
投射光９は良好にスクリーン１の概白色の糸織りに編ま
れた面1aにおいて反射される。一部の光はスクリーン１
を透過してスクリーン１の背面側へ到達し、壁面７など
に反射して再びスクリーン１の着色薄膜形成面1b側に到
達するが、糸表面をおおう着色薄膜によって吸収反射さ
れるため視聴者６側に洩れることがなく、従来の織編物
を構成材料としたスクリーンを使用した場合に比べ画面
のコントラストが向上する。As shown in FIG. 4, sound waves 8 from the speakers 2, 3, and 4 installed on the back of the screen 1 pass through the screen 1 and reach the viewer 6 without causing significant deterioration in characteristics.
For the viewer 6, especially for the reproduction of the dialogue, the screen position and the sound position coincide with each other, so that a powerful video and audio effect similar to that of a theater system can be obtained. On the other hand, the projection light 9 projected on the screen 1 is favorably reflected on the surface 1a of the screen 1 knitted with a substantially white thread. Some light is on screen 1
To reach the back side of the screen 1 and reflect on the wall surface 7 and the like again to reach the colored thin film forming surface 1b of the screen 1. However, the light is absorbed and reflected by the colored thin film covering the yarn surface, so that the viewer 6 There is no leakage to the side, and the screen contrast is improved as compared with the case where a conventional screen made of a woven or knitted fabric is used.
また、第６図に示されるように生地の通気度が概100
以上であるので、音響通過特性が特に優れている。Also, as shown in FIG.
As described above, the sound transmission characteristics are particularly excellent.
なお、他の実施例としては、スクリーン１の着色薄膜
形成面1bを金属薄膜等で表面処理した形成面としても同
様な効果を得ることができる。In another embodiment, a similar effect can be obtained even when the colored thin film forming surface 1b of the screen 1 is surface-treated with a metal thin film or the like.
発明の効果 以上説明したように本発明によれば、片面に反対面よ
り濃色の着色薄膜形成処理を施した織編物を構成材料と
し、上記の着色薄膜形成処理を施していない側の面を投
射面とし、織編物の通気度を概100以上に設定した構成
により、音響透過性に優れていることはもとより、コン
トラスト等の視覚性能にも優れたスクリーンが実現でき
る。Effects of the Invention As described above, according to the present invention, a woven or knitted fabric on which one side has been subjected to a darker colored thin film forming process from the opposite surface is used as a constituent material, and the surface on which the above-described colored thin film forming process has not been performed is used. With a configuration in which the air permeability of the woven or knitted fabric is set to about 100 or more as the projection surface, it is possible to realize a screen having not only excellent sound permeability but also excellent visual performance such as contrast.
第１図は本発明の一実施例におけるスクリーンの生地の
斜視断面図、第２図は本発明のスクリーンを用いたAVシ
ステムの正面概念図、第３図は本発明のスクリーンを用
いたAVシステムの斜視概念図、第４図は本発明のスクリ
ーンの動作概念図、第５図は本発明のスクリーンに垂直
に入射する音波の透過特性図、第６図は一般的な生地の
通気度と音響透過特性の関係図、第７図は従来の音響透
過スクリーンを用いたAVシステムの一例を示す斜視図、
第８図は従来のスクリーンの斜視断面図、第９図は音孔
を有するスクリーンの斜視図、第10図は従来の織編物を
構成材料とするスクリーンの動作概念図である。 １……スクリーン、1a……概白色の糸によって織り編ま
れた面、1b……着色薄膜形成面、２……左chスピーカ、
３……中央chスピーカ、４……右chスピーカ。FIG. 1 is a perspective cross-sectional view of a screen fabric in one embodiment of the present invention, FIG. 2 is a conceptual front view of an AV system using a screen of the present invention, and FIG. 3 is an AV system using a screen of the present invention. , FIG. 4 is a conceptual diagram of the operation of the screen of the present invention, FIG. 5 is a transmission characteristic diagram of a sound wave perpendicularly incident on the screen of the present invention, and FIG. FIG. 7 is a perspective view showing an example of an AV system using a conventional sound transmission screen,
FIG. 8 is a perspective sectional view of a conventional screen, FIG. 9 is a perspective view of a screen having sound holes, and FIG. 10 is an operation conceptual diagram of a screen using a conventional woven or knitted fabric as a constituent material. 1 ... screen, 1a ... surface woven and knitted by almost white thread, 1b ... colored thin film forming surface, 2 ... left channel speaker,
3 Central speaker, 4 Right speaker.
Claims (2)
を施した通気度が概100以上の通気性のある織編物を構
成材料とし、上記の着色薄膜形成処理を施していない側
の面を投射面とするスクリーン。1. A woven or knitted fabric having a permeability of about 100 or more, which has been subjected to a colored thin film formation process on one side and a darker color than the opposite surface, is used as a constituent material. A screen whose surface is the projection surface.
概100以上の通気性ある織編物を構成材料とし、前記金
属薄膜形成処理を施していない側の面を投射面とするス
クリーン。2. A screen comprising a woven or knitted fabric having a gas permeability of about 100 or more and having one surface subjected to a metal thin film forming treatment and having a surface on which the metal thin film forming treatment is not performed as a projection surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2303588A JP2584125B2 (en) | 1990-11-07 | 1990-11-07 | screen |
| US07/788,019 US5140460A (en) | 1990-11-07 | 1991-11-05 | Motion-picture screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2303588A JP2584125B2 (en) | 1990-11-07 | 1990-11-07 | screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04174829A JPH04174829A (en) | 1992-06-23 |
| JP2584125B2 true JP2584125B2 (en) | 1997-02-19 |
Family
ID=17922811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2303588A Expired - Fee Related JP2584125B2 (en) | 1990-11-07 | 1990-11-07 | screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2584125B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016531312A (en) * | 2013-06-28 | 2016-10-06 | シゼイ シジブイ カンパニー リミテッド | Screening hall structure and multi-screen screening system using the same |
| JP2016114701A (en) * | 2014-12-12 | 2016-06-23 | 一般財団法人Ｎｈｋエンジニアリングシステム | Projection screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4990533A (en) * | 1972-12-28 | 1974-08-29 |
-
1990
- 1990-11-07 JP JP2303588A patent/JP2584125B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04174829A (en) | 1992-06-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |