WO2011004463A1

WO2011004463A1 - Screen

Info

Publication number: WO2011004463A1
Application number: PCT/JP2009/062390
Authority: WO
Inventors: 小杉博俊; 荒川正司; 三柴晶子; 左合昌行
Original assignee: 株式会社システムクリエイツ; 高桑美術印刷株式会社; 王子製紙株式会社; 王子特殊紙株式会社
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2011-01-13

Abstract

Provided is a compact screen which can be formed of a paper material, a synthetic paper material or other materials and can be produced easily at a low cost. The screen on which a video image projected from a projector is projected as a visible video image, wherein minute protrusions and recesses are formed on the surface of the screen portion (3), on which a video image is projected, of the screen by applying or printing UV-curing varnish.

Description

screen

The present invention relates to a screen that projects an image projected from a projector device as a visible image.

Conventionally, various screens have been used for visually recognizing images projected using a projector device as visible images.
For example, roll screens are frequently used because large screens are used, and JP-A-11-38508 (Patent Document 1) and JP-A-2008-185765 (Patent Document 2) exist.

These are obtained by laminating a resin film using a fiber cloth or cloth, and further laminating or vapor-depositing a metal thin film or the like as necessary.
In addition, for example, Japanese Patent Application Laid-Open No. 7-5571 (Patent Document 3) and Japanese Patent Application Laid-Open No. 2004-323858 (Patent Document 4) include glass beads disposed on the screen surface for projection as a visible image.

Furthermore, as screens that are miniaturized and have improved portability, there are JP 2008-33187 (Patent Document 5), JP 2008-46283 (Patent Document 6), and JP 2009-116289 (Patent Document 7). To do.
These are all screens used for projecting images by the projector device, and have been devised in order to respond to diversifying demands.

JP-A-11-38508 JP 2008-185765 A JP-A-7-5571 JP 2004-323858 A JP 2008-33187 A JP 2008-46283 A JP 2009-116289 A

As described above, there are various projection screens for the projector device as described above. First, the configurations shown in Patent Document 1 and Patent Document 2 are for large roll screens in the first place, considering portability and the like. Patent Documents 5 to 7 have been devised.
These highly portable screens are compact, but their projection surfaces use conventional reflective surfaces such as resin films and metal foils.

In particular, a small screen is often used in a bright place, and a screen having high brightness and a large screen gain is inevitably required. However, the screen having portability is almost the same as the conventional screen.
In this case, as shown in Patent Document 3 and Patent Document 4, there are some which attempt to achieve high luminance using glass beads, but these inevitably have a narrow viewing angle.

Therefore, it is desired to provide a screen having excellent portability, high luminance, and a certain viewing angle.
In particular, it is a problem to provide a compact screen that is formed of a paper material, a synthetic paper material, or other materials, and that can be easily manufactured at low cost.
Furthermore, it is also desired to provide a screen that can be used for holographs that will be used in the future.

In order to solve the above-mentioned problem, the invention according to claim 1 is a screen for projecting an image projected from the projector device as a visible image, and an ultraviolet curable varnish is applied to the surface of the screen part for projecting the image on the screen. This is a screen in which minute irregularities are formed by printing, and can be solved by the invention.
Further, in the invention according to claim 2, the formation of minute irregularities by applying or printing the ultraviolet curable varnish on the surface of the screen portion is performed by forming an underprint layer by applying or printing the ultraviolet curable varnish, and further by the ultraviolet curable type. This is a screen for forming fine unevenness by forming an overprinting layer by applying or printing varnish, and the overprinting layer being repelled by the underprinting layer. By using this invention, the fine unevenness can be appropriately formed. Is.

Furthermore, a screen containing a silicon additive in the ultraviolet curable varnish constituting the underprint layer as in the invention according to claim 3 may be used.
In these cases, the screen may be a paper screen as in the invention according to claim 4, or the screen may be a synthetic paper screen as in the invention according to claim 5.
Further, the invention according to claim 6 may be a screen in which the surface of the screen part for projecting the image on the screen is constituted by a surface provided with minute irregularities by applying or printing an ultraviolet curable varnish on a transparent sheet or film.

Alternatively, as in the invention according to claim 7, the screen is formed by folding a single sheet, and the screen portion, the bottom portion, and the pressing portion are included in the single sheet, and the screen portion is folded between each of the screen portions. A screen that can be maintained in an upright state and that can be folded back into the original sheet may be used.
In this case, as in the invention according to claim 8, the one sheet includes a back surface portion of the screen, a screen portion, a front protruding portion, a bottom portion, and a pressing portion, and is formed by folding each of the screens. A screen can be used that can be brought into an upright state by locking the protruding piece formed on the back surface and the pressing portion, and can be released from the standing state by removing the lock.

Since it comprised as mentioned above, according to the invention which concerns on Claim 1, reflective glossiness can be provided to the surface of a screen, and a screen with a high screen gain can be provided.
In particular, since it has a minute uneven surface, it is possible to provide a screen that reflects in many directions in a balanced manner upon projection onto the surface, has higher reflection efficiency, and has a wide viewing angle.
Further, it is possible to form a minute uneven surface easily and inexpensively by applying or printing an ultraviolet curable varnish.
Next, according to the invention according to claim 2, the underprint layer and the overprint layer are formed, and minute irregularities are formed by repelling the overprint layer, and each layer is easily formed by printing or coating. It can be manufactured at low cost.

Further, according to the invention of claim 3, the repelling efficiency can be increased by the silicon additive, and the overprinting layer can be easily repelled in a desired state, thereby facilitating the molding.
According to the fourth aspect of the invention, a paper screen can be provided, and a simple and inexpensive screen can be provided.
In particular, because it is made of paper, it is easy to miniaturize and is easy to transport and store.
In addition, paper resources can be used for recycling.
According to the fifth aspect of the present invention, it can be formed with synthetic paper that is currently widely used as a printing medium, and it is extremely easy to manufacture and various materials can be used.

According to the invention according to claim 6, the screen portion is constituted by a transparent sheet or film, and a minute unevenness is formed by applying or printing an ultraviolet curable varnish on the transparent portion. This unevenness enables holographic projection, that is, projection of a three-dimensional image.
According to the invention according to claim 7 or claim 8, it is possible to provide a screen that can be manufactured by folding a single sheet, which can be assembled and used at the time of use, and stored in the form of a sheet at the time of storage or transportation. It can be transported and provides an easy-to-use screen.

The figure which shows an example of the use condition of the screen which concerns on this invention The figure which shows an example of the use condition of the screen which concerns on this invention The figure which shows an example of the state expand | deployed in the sheet form of the screen which concerns on this invention The figure which shows the value of the brightness | luminance and screen gain which were experimented using the projector machine using LED with respect to the screen which concerns on this invention. The figure which shows the graph of the experimental result shown in FIG. The figure which shows the value of the brightness | luminance and screen gain which were experimented using the projector machine which used the high pressure mercury lamp with respect to the screen which concerns on this invention. The figure which shows the graph of the experimental result shown in FIG.

FIG. 1 is a diagram showing an example according to the present invention, which is a screen of a projector device manufactured by paper.
This screen is a small screen that can be used on a desk or the like, and is an example of a portable screen that can be easily assembled for use.
The configuration shown in the figure is an example of an assembled state in which a paper material is used to fold it to form a screen.
In this case, the screen portion 3 is provided in the front portion as the standing state, and the standing state of the screen portion 3 is maintained by the front projecting portion 4, the bottom portion 5 and the pressing portion 6.

Furthermore, this screen is a paper screen manufactured using a paper material, and can be manufactured easily and inexpensively.
Accordingly, the entire screen or at least the main part of the screen is constructed with paper.
For example, it is formed with a paper sheet.
In these cases, a sheet of paper member having a thickness of about 0.2 mm to 3.0 mm is suitable as the thickness, but a thickness of about 0.4 to 1.0 mm is particularly optimal. is there.
Of course, it is not limited to this thickness.

Next, the screen scribing that projects the image projected using the projector device as a visible image further forms fine irregularities.
The minute irregularities are formed by applying or printing an ultraviolet curable varnish.
The minute unevenness is preferably about 20 μm to 50 μm, and each unevenness is preferably formed with an interval of about 70 μm to 100 μm, for example.
Of course, the distance is not limited to this size interval, and approximately this degree is desirable, and of course, it may be less than or greater than this.
The minute irregularities are formed by coating or printing, and an example of a molding method is shown below.
First, it may be formed by screen printing on the screen portion of the screen.

In addition, for the fine unevenness, an underprint layer in which silicon is added to an ultraviolet curable varnish is printed on a base material, and an ultraviolet curable varnish with a small amount of silicon additive is used as an overprint layer on the base layer. In addition, a fine unevenness may be formed by repelling the overprinting layer.
As a method for forming the underprint layer, lithographic offset printing, flexographic printing, screen printing, resin letterpress printing, or the like may be used.
As a method for forming the overprint layer, a roll coater, a chamber coater, or a flexo coater may be used.
Next, it is desirable that the silicon additive is added in an appropriate amount as necessary with respect to the overprint layer. For example, about 0.01 to 0.15% by weight is preferable, but the amount is not limited to this amount. Other amounts may be added in consideration of the properties and the like. Furthermore, it is of course possible to use an ultraviolet curable varnish without adding a silicon additive.

These may be used in an arbitrary amount or not added depending on the relationship with the underprinting layer and the required shape of minute irregularities.
In addition, you may mix | blend a wax with an overprinting layer and / or underprinting layer.
Examples include polyethylene wax, paraffin wax, and chlorofluorocarbon wax.
Further, regarding the undercoat layer, the silicon additive is preferably about 0.1 to 10% by weight, and it is desirable to add a larger amount of silicon than the overprinting layer.
This is to effectively and accurately repel the overprint layer.
In particular, silicon having a high mold release effect is optimal.

When minute irregularities are formed by applying or printing the ultraviolet curable varnish on the screen portion of the paper screen in this way, the screen portion functions as a screen having a high luminance and a large screen gain.
In other words, a screen with a very high visibility and a wide viewing angle can produce gloss by an ultraviolet curable varnish, increase the screen gain of the surface, and reflect light in many directions by minute irregularities. Can be provided.
Therefore, small projector devices are currently widely used, but small and light screens are often used as the screens when using the projector devices, but all are general screens and have a particularly low screen gain. Only it is.

For example, there is a certain effect in a dark place, but it is very difficult to see in a slightly bright place.
On the other hand, the use place of the small projector is not limited to the dark place but is used in various places, and it is expected to be used in various situations in the future.
In this case, it is considered possible to manufacture a screen with a high screen gain that is expensive and difficult to manufacture, but the demand for the screen that can be manufactured easily at a low cost and is easy to dispose is also most demanded. It is what it is desired to provide.
By applying or printing the ultraviolet curable varnish of the screen portion according to the present invention, a very uneven structure enables a very high screen gain as compared with a commercially available paper screen, and also has a wide viewing angle. It has a viewing angle.

Note that there is also a technique for forming minute irregularities using an ultraviolet curable varnish on the disc housing, focusing on the fact that Japanese Patent Application Laid-Open No. 2008-184214 already proposed by the present applicants has a low friction coefficient. However, the present invention is completely different from the above, and pays attention to the facts such as the diffusion of light and the high reflection efficiency, and uses this for the screen portion which is the projection portion of the screen, and is a very effective and useful invention. Is to provide.

FIG. 2 is a view of the screen of FIG. 1 viewed from the back side, and the screen portion 3 is firmly raised by a front protrusion 4 and a bottom 5 which is a rear protrusion, and a rear protrusion. The bottom portion 5 is further provided with a pressing portion 6, and the pressing portion 6 is hooked on the protruding piece 2 of the back surface portion 1 of the screen portion, so that the assembled state can be maintained.
In addition, between the bottom part 5 and the pressing part 6 that follows this, the locking piece 7 generated by the cutting is in a protruding state.
Thereby, maintenance of an upright state can be improved.
The configuration shown in FIGS. 1 and 2 is an example, and the present invention is not limited to this.

FIG. 3 is an example of the screen according to the present invention, and is a diagram showing an example of the unfolded state of the sheet-like screen before the paper screen shown in FIGS. 1 and 2 is assembled. The screen shown in FIGS. 1 and 2 can be provided by assembling the sheet-like screen after folding it.
As shown in the figure, the back surface portion 1 constituting the back portion of the screen portion is formed on one sheet, and the protruding piece 2 is further provided here, and the screen portion 3, the bottom portion 5, and the pressing portion 6 are provided.
In this case, the screen shown in FIGS. 1 and 2 can be formed by folding the portion indicated by the broken line.
This has a protruding side 2 of the screen portion back surface portion 1 on one side of a short side of a substantially rectangular sheet, and this portion is the screen back surface 1, followed by a screen portion 3 to be formed by mountain folding. .

The back surface portion 1 and the screen portion 3 are formed by sticking with glue or the like, and can have a certain thickness. In the configuration shown in the figure, the protruding piece 2 is not attached.
Further, the screen portion 3 is followed by a forward projecting portion 4, and a projecting portion can be formed in the forward direction of the screen by folding the broken line between them.
The front protrusion 4 is further followed by a bottom 5 with a broken line, and the bottom can be formed by folding the broken line in a mountain.
In this case, it is possible to provide a strong base portion having a thickness by sticking the forward projecting portion 4 and the bottom portion 5 with glue or the like.
Accordingly, the screen can be erected on the bottom 5 firmly.

In this case, the pressing portion 6 continues, and is clearly indicated by a broken line between the bottom portion 5 and the pressing portion 6, and this portion is mountain-folded.
Further, the broken line portion is provided with a slit at an arbitrary position so that a part protrudes in a mountain-folded state, and has a locking piece 7 generated by cutting.
The screen shown in FIGS. 1 and 2 can be provided by folding or gluing such a sheet material in the above-mentioned manner.
Naturally, the holding portion 6 is locked to the protruding side 2 of the back surface portion 1 of the screen portion, whereby a standing state can be formed, and if this locking is removed, it can be returned to a sheet shape.
Although the glued part cannot be removed, it can be returned to a folded sheet, making it convenient for transportation and storage, improving portability and providing a small screen. It becomes.

Next, the screen portion 3 has minute irregularities formed by applying or printing an ultraviolet curable varnish on the surface thereof.
As shown in the figure, this screen can be manufactured by a paper sheet, and an under-cured layer and similarly an over-printed layer are formed by applying or printing an ultraviolet curable varnish on the screen portion of the sheet. Further, the screen according to the present invention can be manufactured by forming a screen portion by repelling the overprinting layer to form a screen portion, and further cutting it into a necessary shape and then folding it.
Therefore, it can be manufactured very easily and inexpensively, and contributes to mass production.

The configurations shown in FIGS. 1 to 3 are merely examples, and the present invention is not limited to this. Any screen that projects at least an image projected from a projector device or the like as a visible image may be used.
Also, any UV-curable varnish may be applied or printed on the screen portion for projecting an image to form an underprint layer and similarly an overprint layer, and then the overprint layer may be repelled to form minute irregularities. .
This makes it possible to provide a screen with a high viewing gain and a wide viewing angle.
Next, although the paper screen has been described above as a premise, the paper screen is not limited to paper and synthetic paper may be used.
This may be formed in the same manner with synthetic paper not using wood pulp, for example, using polypropylene or the like as a raw material.

Alternatively, the screen may be configured using other resin materials or various existing members.
What is necessary is just to have the micro unevenness | corrugation by apply | coating or printing an ultraviolet curable varnish to the screen part of a screen at least.
As described above, the screen according to the present invention may be a screen having minute irregularities formed by applying or printing an ultraviolet curable varnish on at least the screen portion in addition to those shown in FIGS. Or a screen that can be supported or hung on a window or a wall or can be attached.
What is necessary is just to have the micro unevenness | corrugation formed by apply | coating or printing an ultraviolet curable varnish at least to a screen part.

In this case, the application or printing of the ultraviolet curable varnish and the minute irregularities are as described above.
Furthermore, the screen according to the present invention has fine irregularities formed by applying or printing an ultraviolet curable varnish on the paper member or the synthetic paper member itself, and other members such as an ultraviolet curable varnish on various sheet or film bases. The screen portion may be configured by forming minute irregularities formed by coating or printing, and disposing this on the portion of the screen portion that is a copied portion.
For example, fine irregularities formed by applying or printing an ultraviolet curable varnish on a transparent sheet or film may be formed and used as a screen portion.
When a screen part is formed by forming minute irregularities formed by applying or printing an ultraviolet curable varnish on a transparent sheet or film, the image projected on the part can be used as a holographic screen depending on the thickness of the corresponding surface part. is there.

Accordingly, a stereoscopic image can be projected.
For example, an image projected from a projector device can be displayed as a visible image by pasting a screen having fine irregularities formed by applying or printing an ultraviolet curable varnish on a transparent sheet or film, for example, to a window. In addition to being flat, the projected image can be displayed as a three-dimensional image as a holographic image.
In addition, for example, a screen in which a screen portion having fine irregularities formed by applying or printing an ultraviolet curable varnish on the transparent sheet or film is used for the screen portion of the screen that can be erected. Of course, it is good, and in this case, it is possible to project a holographic image that is a three-dimensional image in addition to a two-dimensional image.
In addition, the transparent sheet | seat base and film base should just consist of general raw materials, such as resin property, and this thickness should just have arbitrary thickness.

FIG. 4 shows an example of an experiment using an apparatus using LED as a projector (trade name: TAXAN KG-PL105S). A complete diffuser, a paper screen A according to the present invention, and a synthetic paper screen B according to the present invention. 4 is a table comparing brightness and screen gain at each angle for a commercially available paper screen.
At an angle of 0 degrees, the paper screen A has a luminance of 80.5 cd / square meter and a screen gain of 1.106, and the synthetic paper screen B has a luminance of 84.1 cd / square meter and a screen gain of 1.155.
In contrast, a commercially available paper screen has a luminance of 66.8 cd / square meter and a screen gain of 0.918.

Therefore, the luminance is extremely high and the screen gain is high, so that it can sufficiently withstand use in, for example, a room in the daytime.
Further, the paper screen A according to the present invention has a higher brightness and a higher screen gain than a commercially available paper screen up to a viewing angle of 20 degrees.
In particular, when used on a desk in a room, etc., it ensures high brightness in a wide range of viewing angles by maintaining high brightness up to about 20 degrees because it is viewed by a small number of people rather than being viewed by a large number of people. It is.
Furthermore, even at a viewing angle of 60 degrees, a high value of a brightness of 57.2 cd / square meter and a screen gain of 0.786 can be secured.

Next, the synthetic paper screen B according to the present invention has a higher brightness and a higher screen gain than a commercially available paper screen up to a viewing angle of 50 degrees.
In particular, when used on a desk in a room, etc., it is highly visible in a wide range of viewing angles because it is highly visible from a small number of people and maintains high brightness up to about 50 degrees rather than being viewed by a large number of people. Is to secure.
Furthermore, even at a viewing angle of 60 degrees, a high value of 61.4 cd / square meter and a screen gain of 0.843 can be secured.
FIG. 5 is a graph of the numerical values shown in FIG.

FIG. 6 shows an example of an experiment using a device using a high-pressure mercury lamp as a projector (trade name: PLUS U4-111). A complete diffuser, a paper screen A according to the present invention, and a synthetic paper according to the present invention. It is the table | surface which compared the brightness | luminance and screen gain at each angle for the screen B and the commercially available paper screen, respectively.
At an angle of 0 degrees, the paper screen A has a luminance of 418 cd / square meter and a screen gain of 1.136, and the synthetic paper screen B has a luminance of 390 cd / square meter and a screen gain of 1.060.
In contrast, a commercially available paper screen has a luminance of 329 cd / square meter and a screen gain of 0.894.
Therefore, the luminance is extremely high and the screen gain is high, so that it can sufficiently withstand use in, for example, a room in the daytime.

Further, the paper screen A according to the present invention has a higher brightness and a higher screen gain than a commercially available paper screen up to a viewing angle of 30 degrees.
In particular, even at a viewing angle of 60 degrees, a high value of a luminance of 278 cd / square meter and a screen gain of 0.755 can be secured.
Therefore, it has a very high brightness and a high screen gain value in the most frequently used range.
Next, the synthetic paper screen B according to the present invention has a viewing angle of 60 degrees, that is, higher brightness and higher screen gain than a commercially available paper screen until the end of the experiment.
As a numerical value, even at a viewing angle of 60 degrees, a high value of a luminance of 301 cd / square meter and a screen gain of 0.818 can be secured.
In particular, even when used on a desk such as a room, it is possible to ensure high luminance in a wide range of viewing angles.
FIG. 7 is a graph of the numerical values shown in FIG.

DESCRIPTION OF SYMBOLS 1 Back part 2 Projection piece 3 Screen part 4 Front projection part 5 Bottom part 6 Holding part 7 Locking piece

Claims

A screen for projecting a video projected from a projector device as a visible video,
A screen characterized in that fine irregularities are formed by applying or printing an ultraviolet curable varnish on the surface of a screen portion that projects a screen image.
The formation of minute irregularities by applying or printing an ultraviolet curable varnish on the surface of the screen part is performed by forming an underprint layer by applying or printing an ultraviolet curable varnish, and further applying or printing an ultraviolet curable varnish. The screen according to claim 1, wherein a fine unevenness is formed by repelling the overprinting layer by the underprinting layer.
The screen according to claim 2, wherein the ultraviolet curable varnish constituting the underprint layer contains a silicon additive.
The screen according to any one of claims 1 to 3, wherein the screen is a paper screen.
4. The screen according to claim 1, wherein the screen is a synthetic paper screen.
6. The surface of a screen portion for projecting a screen image is constituted by a surface provided with fine irregularities by applying or printing an ultraviolet curable varnish on a transparent sheet or film. A screen according to any one of the above.
The screen is formed by folding one sheet, and has at least the screen portion 3, the bottom portion 5 and the pressing portion 6 in one sheet, and can be folded to maintain the screen portion 3 in an upright state. 6. The screen according to claim 1, wherein the folding can be returned to the original sheet shape.
One sheet is composed of a back surface portion 1, a screen portion 3, a front protruding portion 4, a bottom portion 5 and a pressing portion 6 of the screen, and is formed by folding each of them.
It is possible to establish a standing state by locking the protruding piece 2 formed on the screen back surface portion 1 and the pressing portion 6, and to release the standing state by removing the locking. Item 8. The screen according to Item 7.