JP2010181592A - Image display system, image display method, and screen device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low cost, lightweight, non-glaring and which is a readily used image display system in which humans can enter or pass through a screen device. <P>SOLUTION: The image display system includes the screen device 100 having a plurality of screens 101, 101, ..., having a phosphor excited by ultraviolet and transmitting ultraviolet and visible light, and a support device 110 for hanging the plurality of the screens 101, 101, ..., arranging them at a predetermined interval, and projectors PJ1 and PJ2 that emit a plurality of ultraviolet rays for projecting images to the screen device 100 from directions different from each other, and displaying the images on the screen surfaces 101a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display system for displaying an image using an ultraviolet projector, an image display method, and a screen device for use in the image display system.

  A projector that is a projection-type image display device requires a screen for reproducing a projected image. Classification of screens for displaying projected images of projectors includes hard-type screens that are hard and hard to break, soft-type screens that are convenient for storage and movement, and front projection types that depend on the projection direction of the projector. There is a classification method such as a screen of the rear projection type.

Regardless of which screen is used, the movement of a person or the like is hindered or the viewing direction is limited due to the presence of the screen. For this reason, an image display system combining a projector and a screen is mainly used in a limited place such as a conference room or a movie theater.
On the other hand, recently, there are screens such as “fog screen” and “white smoke screen” (see, for example, Patent Document 1 and Patent Document 2).

  The technique (referred to as the first conventional technique) disclosed in Patent Document 1 forms a screen (fog screen) by generating fog uniformly and planarly, and an image projection apparatus such as a projector is formed on the formed fog screen. The projected image is displayed. According to such a fog screen, movement of a person or the like is not hindered, and a person can enter the screen, place an object, or a person can pass through the screen.

  Therefore, such fog screens are formed in passages such as airports, stations, hospitals, shopping malls, etc. to display directions to the destination and display various information, various events, It can also be used in shows and the like, and a new image display system combining a fog screen and a projector can be constructed.

  Further, the technology disclosed in Patent Document 2 (referred to as the second conventional technology) forms a screen (white smoke screen) by generating white smoke, and an image projection device such as a projector is formed on the formed white smoke screen. The projected image is displayed. Similar to the fog screen, such a white smoke screen can be used in the same way as a fog screen because a person can enter the screen, place an object, and a person can pass through the screen.

  However, before the fog screen and the white smoke screen both pass through the screen, the image projected on the screen can be seen, but if a person enters the screen or passes through the screen, There is a problem that the displayed image cannot be seen, and if there is a person or object between the image projection device such as a projector and the screen, the person or object blocks the projection light, and the There is a problem that shadows of people and things are made in the image of.

  In addition, fog screens require a large amount of water, require a large amount of water to be stored, increase weight, and consume extremely large power. In addition, there is a problem that the cost of the fog screen itself is extremely high, and it is not easy to use and the range of use is limited.

  In addition, the white smoke screen requires liquid nitrogen and water to generate white smoke, and a heater with high power consumption is required to heat the water. is there.

  Therefore, an image display system that combines the above-described fog screen or white smoke screen and an image projection apparatus such as a projector may be able to construct a new image display system that has not been available so far. Many problems remain.

  Patent Document 3 discloses a technology of a screen device for use in an image display system, an image display method, and an image display system that solves the problems of the fog screen and the white smoke screen.

JP-A-4-287032 JP-A-7-56235 JP 2008-268858 A

  However, the image display method and the image display system described above are often projected in a dark part due to the characteristics of the projector, and even if the setting position of the projector is increased, a line of sight appears at the bright spot when trying to view the image projected on the curtain. I sometimes feel dazzled.

  The degree of freedom of the setting position of the projector becomes low, and the distortion of the image projected from the high position becomes large, which causes a reduction in image quality.

  In addition, when images are projected from different directions, the images are projected onto a single curtain in a double or triple manner due to the influence of different projection distances from a plurality of directions.

  Therefore, the above-described image display system, the image display method, and the screen device for use in the image display system may be able to construct a new image display system that has never existed, but have various problems as described above. Many are left behind.

  The present invention can be realized as the following application examples or forms so as to solve at least one of the above problems.

  Application Example 1 An image display system according to this application example includes a phosphor that is excited by ultraviolet rays, a plurality of curtains that transmit ultraviolet rays and visible light, and the plurality of curtains arranged side by side at a predetermined interval. And a plurality of ultraviolet projectors that project images onto the screen device from different directions and display images on the screen.

  An ultraviolet projector is a projector that emits ultraviolet light, whereas a normal projector emits visible light.

  Unlike a normal screen, an ultraviolet projector is coated with a phosphor that is excited by ultraviolet rays on the screen surface.

  According to the above configuration, the image display system includes a phosphor that is excited by ultraviolet rays, a plurality of curtains that transmit ultraviolet rays and visible light, and a support device that suspends the plurality of curtains side by side at a predetermined interval. Therefore, a person or the like can enter the screen device. In addition, since multiple UV projectors project images from different directions, even if a person enters the screen device, even if the projected image from a certain direction is blocked by the presence of a person, A projected image from the direction is displayed. Thereby, a projection image can be displayed without being influenced by the presence of a person or the like.

In addition, according to the above configuration, the image display system has a plurality of curtains, and each curtain has a phosphor excited by ultraviolet rays and transmits ultraviolet rays and visible light. Can display an image on the screen of each curtain.
Also. The image display system of the present invention does not form a screen by generating fog, white smoke, etc., so it does not require large construction for installation and is easy to move, so it can be used easily A possible image display system can be obtained.

  Application Example 2 The image display system preferably includes a screen device that inserts a plurality of shielding curtains that absorb ultraviolet light and transmit visible light between the curtains in the screen device.

By installing the shielding screen, the following effects are obtained.
(1) When projecting from ultraviolet projectors installed from different directions, a plurality of images may be displayed on a single curtain from a plurality of directions. Even if a plurality of images are the same information, the images are displayed double or triple due to the difference in projection distance or magnification, and visibility is lowered. If you want to project only images from a specific UV projector to a specific curtain from multiple UV projectors, you can display a double or triple image by installing a shielding curtain in the optical path of the UV projector from other than the specific projector. Visibility is improved.
(2) Improvement of safety by protecting eyes. Since the ultraviolet projector uses near ultraviolet rays, the human body is relatively hardly affected. However, it may be a problem if you stare at or look at the bright spot for a long time. Therefore, when the place where people can pass is limited, by installing the shielding curtain between the place where people can pass and the curtain, ultraviolet rays can be completely absorbed and light can be transmitted. The image projected on can be viewed.

Application Example 3 In the image display system, it is preferable that the curtain has a higher ultraviolet transmission amount than an ultraviolet amount absorbed by excitation of the phosphor.
As a result, images projected from a single ultraviolet projector can be simultaneously displayed on a plurality of curtains.

Application Example 4 In the image display system, it is preferable that the curtain and the shielding curtain are made of a material that freely swings when an external force is applied.
Thus, since the curtain is made of a soft material such as cloth, it is easy for a person or the like to enter between the curtains or to place an object between the curtains.

Application Example 5 In the image display system, it is preferable that the curtain and the shielding curtain have at least one slit in a vertical direction of the curtain surface.
Thus, by providing a slit on the curtain surface of each curtain, a person can pass through the screen device along the projection direction of the ultraviolet projector. At this time, since the bright spot of the ultraviolet projector becomes ultraviolet rays, it does not feel dazzling. As a result, the image display system according to this application example can be provided in a passage in a building, for example, to display a road guide or display various information.

Application Example 6 In the image display system, it is also preferable that the curtains are arranged concentrically with the curtain surfaces having a predetermined interval.
Thus, by arranging each curtain concentrically, a cylindrical screen device can be configured as an appearance, and an ultraviolet projector is installed so as to surround such a cylindrical screen device, By projecting an image from each ultraviolet projector, a three-dimensional image can be displayed.

  Application Example 7 In the image display system, the plurality of ultraviolet projectors are installed on one side and the other side of the screen device, and the ultraviolet projector installed on the one side is a front projection mode. It is preferable that the ultraviolet projector installed on the other side performs the projection in the rear projection mode.

  In this way, an ultraviolet projector is installed on both sides of the screen device, the ultraviolet projector installed on one side performs projection in the front projection mode, and the ultraviolet projector installed on the other side projects in the rear projection mode. For example, even if the projection image from the ultraviolet projector that is projecting in the front projection mode is blocked by the presence of a person entering the screen device, the projection image of the other ultraviolet projector is Since it is displayed in the rear projection mode, not only the person who is in the screen device but also the surrounding people can read the information displayed on the screen device.

Application Example 8 An image display method according to this application example includes a phosphor that is excited by ultraviolet rays, a plurality of curtains that transmit ultraviolet rays and visible light, and the plurality of curtains arranged side by side at a predetermined interval. A screen device having a lowering support device is installed, and a plurality of ultraviolet projectors project images from different directions on the screen device to display images on the screen.
By performing image display by such a method, the same effect as the image display system described in the application example can be obtained. Note that the image display method of this application example preferably has the same characteristics as those of the application example.

  Application Example 9 In the image display method according to the application example described above, the projection range designation type screen device in which a plurality of shielding curtains having ultraviolet absorption properties and light transmission properties are inserted between the curtains in the screen device. It is preferable to install.

Application Example 10 A screen device according to this application example includes a phosphor that is excited by ultraviolet rays, a plurality of curtains that transmit ultraviolet rays and visible light, and the plurality of curtains arranged side by side with a predetermined interval. And a support device.
By using the screen device having such a configuration and combining the screen device and a plurality of ultraviolet projectors, the image display system described in Application Example 1 can be configured. In addition, it is preferable that the screen device of this application example also has the characteristics described in Application Examples 1 to 7.

  Application Example 11 In the screen device, it is preferable that a plurality of shielding curtains that absorb ultraviolet rays and transmit visible light are inserted between the curtains in the screen device.

1 is a diagram illustrating a configuration of an image display system according to a first embodiment. 1 is a diagram showing a simplified image display system according to Embodiment 1. FIG. The figure which shows typically the state which projected on the screen apparatus with the two ultraviolet projectors. FIG. 4 is a diagram illustrating a configuration of an image display system according to a second embodiment. FIG. 6 is a diagram showing a simplified image display system according to a third embodiment. FIG. 9 is a diagram showing a simplified image display system according to a fourth embodiment. FIG. 6 is a diagram showing a simplified image display system according to a fifth embodiment.

Hereinafter, embodiments of the present invention will be described.
[Embodiment 1]
FIG. 1 is a diagram illustrating a configuration of an image display system according to the first embodiment. The image display system according to the first embodiment includes a screen device 100 and a plurality (two in the first embodiment) of ultraviolet projectors PJ1 and PJ2. The screen device 100 includes a plurality of curtains 101 (101 in the first embodiment) 101, 101,... And the curtains 101, 101,. And a support device 110 for lowering. The ultraviolet projectors PJ1 and PJ2 project images on the screen device 100 from different directions, and display the images on the curtain surfaces 101a of the curtains 101, 101,. In this example, the front and back surfaces of the curtains 101, 101,.

  The curtains 101, 101,... Have a phosphor that is excited by ultraviolet rays, and soft thin cloth that transmits ultraviolet rays and visible light is used. This phosphor generates visible light when excited by ultraviolet rays. Note that the ultraviolet transmittance of the cloth is larger than the ultraviolet absorption amount of the phosphor excited by the ultraviolet rays.

  The support device 110 is spanned between two frames 111 and 112 provided along the projection direction of the ultraviolet projector, and a plurality of suspensions that suspend the curtains 101, 101,. It has members 113, 113, ... for lowering. The support device 110 is not limited to the configuration shown in FIG. 1, and various types of configurations can be used depending on the place where the image display system of the present embodiment is installed.

  Further, the curtains 101, 101,... Are only suspended like curtains from the suspension members 113, 113,..., And at least tension in the vertical direction (z-axis direction in the drawing). Is not applied. It should be noted that the curtain surfaces 101a of the curtains 101, 101,... Are suspended from the suspension members 113, 113,... So as not to cause a large “wrinkle” or the like in the lateral direction (y-axis direction in the drawing). It is preferred that

  As described above, the screen device 100 has a curtain 101, 101,... That is simply suspended like a curtain from the suspension members 113, 113,. Because it is made of thin cloth, people can enter and place objects between the curtains.

Ultraviolet projectors PJ1 and PJ2 are a light source that emits ultraviolet light, a light modulation element that modulates ultraviolet light from the light source based on an image signal to generate modulated light, and a projection optical system that projects the modulated light generated by the light modulation element Etc. The light projected by the ultraviolet projectors PJ1 and PJ2 can display an image by projecting it onto a projection surface having a phosphor excited by ultraviolet rays.
In addition, one of the ultraviolet projectors PJ1 and PJ2 (referred to as an ultraviolet projector PJ1) projects in the front projection mode, and the other ultraviolet projector (referred to as the ultraviolet projector PJ2) projects in the rear projection mode. It is assumed that it is set to perform. In the image display system according to the first embodiment, the two ultraviolet projectors PJ1 and PJ2 project the same information or image information.

  FIG. 2 is a diagram schematically illustrating the image display system according to the first embodiment. Specifically, the relationship between the curtains 101, 101,... Of the screen device 100 shown in FIG. 1 and the ultraviolet projectors PJ1, PJ2 is shown, and the support device 110 is not shown. 2A is a perspective view, and FIG. 2B is a plan view seen from above.

  As shown in FIG. 2, the screen device 100 used in the image display system according to the first embodiment arranges the curtain surfaces 101a of the curtains 101, 101,. It becomes the composition. Further, it is assumed that the intervals between the curtain surfaces 101a are substantially equal (for example, intervals of several tens of centimeters), and the curtain surfaces 101a are substantially parallel.

  FIG. 3 is a diagram schematically showing a state in which the screen apparatus 100 is projected by two ultraviolet projectors PJ1 and PJ2. As shown in FIG. 3, the ultraviolet projector PJ1 performs projection in the front projection mode, and the ultraviolet projector PJ2 performs projection in the rear projection mode. In FIG. 3, for example, an image “A, B, C...” Is projected from the ultraviolet projector PJ1 in the front projection mode, and from the ultraviolet projector PJ2, “A, B, C,. “” Is projected in the rear projection mode. For this reason, when viewed from the ultraviolet projector PJ1, the image “A, B, C...” Is displayed in the correct character orientation.

  In addition, the curtains 101, 101,... Have phosphors excited by ultraviolet rays, transmit ultraviolet rays and visible light, and have higher ultraviolet transmittance than the ultraviolet absorption amount of the phosphors excited by ultraviolet rays. Therefore, the images projected from the ultraviolet projectors PJ1, PJ2 are transmitted through the screens 101a of the screens 101, 101,... And displayed on the screens 101a of the screens 101, 101,. The image projected from the ultraviolet projector PJ1 and the image projected from the ultraviolet projector PJ2 are more clearly displayed as the curtain is located closer to each ultraviolet projector PJ1, PJ2, and the curtain located farther from each ultraviolet projector PJ1, PJ2. Although the degree of display clarity is low, if the number of curtains is about five as in the image display system according to the first embodiment, the curtain is displayed on the curtain farthest from each of the ultraviolet projectors PJ1 and PJ2. Even an image is clear enough to be visually recognized.

  By configuring the image display system using such a screen device 100, the images projected on the screen device 100 by the ultraviolet projectors PJ1, PJ2 are displayed on the curtain surfaces 101a of the curtains 101, 101,. It is displayed as shown in. Therefore, in the image display system as shown in FIG. 3, even if a person enters the screen device 100 (between the curtains), for example, even if the projection light from the ultraviolet projector PJ1 is blocked, The projection image from the ultraviolet projector PJ2 is displayed in the rear projection mode. Therefore, a person who is in the screen device 100 can see an image displayed on the screen device 100, and not only a person who is in the screen device 100 but also a person in the surroundings can see the screen device. The image displayed on 100 can be viewed.

  In the image display system according to the present embodiment, since a person can enter the screen device 100, a bright spot may enter the human eye in a normal projector. The projectors PJ1 and PJ2 do not feel dazzling because the bright spot is ultraviolet rays.

  By using the image display system according to the first embodiment, people can enter the screen device 100 and place objects, so that, for example, people and objects can be used in various event venues, show venues, showrooms, etc. Various presentations can be performed in combination with video, and a new image display system different from the past can be constructed. In particular, since projection images from an ultraviolet projector are displayed with a depth on a plurality of curtains, a moving image of a natural phenomenon such as a flame or water becomes realistic with higher texture. Moreover, display of character information etc. can also be performed effectively.

  The image display system according to the first embodiment does not require large-scale construction when installing the image display system, can be easily installed at low cost, and is easy to move. Easy to use in the field.

[Embodiment 2]
FIG. 4 is a diagram illustrating a configuration of an image display system according to the second embodiment. The image display system according to the second embodiment includes a screen device 100 and a plurality (two in the second embodiment) of ultraviolet projectors PJ1 and PJ2. The screen device 100 includes a plurality of (four in the second embodiment) curtains 101, 101,..., A single or a plurality of (one in the actual form 2) shielding curtain 102, and a curtain 101. , 101,... And a support device 110 that suspends the shielding curtain 102 side by side with a predetermined interval in the illustrated x-axis direction. The ultraviolet projectors PJ1 and PJ2 project images from different directions on the screen device 100, and display the images on the curtain surfaces 101a and 101b of the curtains 101, 101,.

  The curtains 101, 101,... Have a fluorescent material that is excited by ultraviolet rays, and soft thin cloths that transmit ultraviolet rays and visible light are used. Note that the ultraviolet transmittance of the cloth is larger than the ultraviolet absorption amount of the phosphor excited by the ultraviolet rays.

  The shielding curtain 102 is made of a soft thin cloth that absorbs ultraviolet rays and transmits visible light. The shielding screen 102 is located between any two of the four screens 101.

  The support device 110 is spanned between two frames 111 and 112 provided along the projection direction of the ultraviolet projector, and the frames 111 and 112, and the curtains 101, 101,. A plurality of suspension members 113, 113,. The support device 110 is not limited to the configuration shown in FIG. 4, and various types of configurations can be used depending on the place where the image display system of the present invention is installed.

  Further, the curtains 101, 101,... And the shielding curtain 102 are only suspended like curtains from the suspension members 113, 113,. ) Is not tensioned. It should be noted that the curtain members 101, 101,... Are suspended from the suspension members 113, 113,... So as not to cause large “wrinkles” in the lateral direction (y-axis direction in the drawing). Preferably it is suspended.

  As described above, in the screen device 100, the curtains 101, 101,... And the shielding curtain 102 are only suspended like curtains from the suspension members 113, 113,. And because it is made of a soft, thin cloth, people can enter and place objects between the curtains.

  In addition, an image is projected from the ultraviolet projector PJ1 onto each screen surface 101a, 101a,..., But not projected onto 101b by the shielding screen 102. In addition, an image is projected from the ultraviolet projector PJ2 onto each screen surface 101b, 101b,..., But not projected onto 101a by the shielding screen 102.

  By using the shielding curtain 102, the structure of the first embodiment is inherited and an image is not duplicated, so that the visibility can be improved.

[Embodiment 3]
FIG. 5 is a diagram schematically illustrating an image display system according to the third embodiment. FIG. 5 is a diagram corresponding to FIG. 2 used in the description of the image display system according to the first embodiment, and the overall configuration including the support device 110 and the like can be considered in the same manner as FIG.

  In the image display system according to the third embodiment, at least one slit S in the vertical direction (z-axis direction in the drawing) is provided on each curtain surface 101a of the curtains 101, 101,. In the example shown in FIG. 5, an example in which two slits S in the vertical direction are provided at equal intervals on each curtain surface 101a of the curtains 101, 101,. 5 shows an example in which the slit S is provided from the lower end of the curtains 101, 101,... To the upper end, it is not necessarily provided until the upper end is reached.

  Since the screen device of the image display system according to the third embodiment has the configuration as illustrated in FIG. 5, a person can enter between the curtains similarly to the image display system according to the first embodiment. In addition, it can also move along the projection direction (the x-axis direction in the drawing) of the ultraviolet projectors PJ1 and PJ2. That is, the person can sequentially move the curtains 101, 101,... So as to break the slits S provided in the curtains 101, 101,. It can pass along the projection direction of the projector.

  Thus, since the image display system according to the third embodiment allows a person to pass through the screen device 100 along the projection direction of the ultraviolet projector, in addition to the same usage as the image display system according to the first embodiment, For example, it is possible to use it by displaying it in a passage in a building or displaying various information.

[Embodiment 4]
FIG. 6 is a diagram schematically illustrating an image display system according to the fourth embodiment. FIG. 6 is a diagram corresponding to FIG. 2 used in the description of the image display system according to the first embodiment, and the overall configuration including the support device 110 and the like can be considered similarly to FIG.

  In the image display system according to the fourth embodiment, the curtains 101, 101,... Of the screen device 100 are in the horizontal direction (compared to the curtains 101, 101,... In the image display systems according to the first and second embodiments). (Horizontal direction) is a narrow shape, and a curtain having such a shape (the strip-shaped curtains 101, 101,...) Crosses the projection direction of the ultraviolet projector PJ1 and the projection direction of the ultraviolet projector PJ2. Are randomly arranged.

  Specifically, as shown in FIG. 6, the number and interval of the strip-shaped curtains 101, 101,... Are random in the direction crossing the projection direction of the ultraviolet projectors PJ 1, PJ 2 (y-axis direction in the drawing). In addition, the number and interval of the strip-shaped curtains 101, 101,... Are also random in the projection direction of the ultraviolet projectors PJ1, PJ2.

  When the strip-shaped curtains 101, 101,... Are randomly arranged as shown in FIG. 6, a part of the projected image of the ultraviolet projector passes through the screen device 100 without being displayed on any curtain. In order to prevent such a situation, when the screen device 100 is viewed from one side of the screen device 100 along the projection direction (x-axis direction in the drawing) of the ultraviolet projector, the other side of the screen device 100 can be seen through. It is preferable to arrange strip-shaped curtains 101, 101,.

  Since the screen device of the image display system according to the fourth embodiment has the configuration as illustrated in FIG. 6, as in the image display system according to the third embodiment, a person moves the screen device 100 in the projection direction of the ultraviolet projectors PJ1 and PJ2. Further, in the image display system according to the fourth embodiment, since the strip-shaped curtains 101, 101,... Are randomly arranged, various usages with a higher degree of freedom are possible. Become.

  6, the strip-shaped curtains 101, 101,... Are parallel to the curtain surfaces 101a of the strip-shaped curtains 101, 101,... Existing in the projection direction of the ultraviolet projectors PJ1, PJ2. Although an example of such an arrangement is shown, the present invention is not limited to this. For example, the arranged screen faces 101a are parallel, or the arranged screen faces 101a have a slight angle. As described above, the orientation of each screen 101a may be random.

[Embodiment 5]
FIG. 7 is a diagram schematically illustrating an image display system according to the fifth embodiment. FIG. 7 is a diagram corresponding to FIG. 2 used in the description of the image display system according to the first embodiment, and the overall configuration including the support device 110 and the like can be considered in the same manner as FIG.

  The image display system according to the fifth embodiment may use the curtains 101, 101,... Provided with the slits S in the image display system according to the third embodiment, and the image display system according to the fourth embodiment. Although the strip-shaped curtains 101, 101,... May be used, the strip-shaped curtains 101, 101,.

  As shown in FIG. 7, in the image display system according to the fifth embodiment, the curtain surfaces 101a of a plurality of strip-shaped curtains 101, 101,... Are arranged concentrically with a predetermined interval. The screen device 100 has a cylindrical appearance. In the image display system according to the fifth embodiment, the three ultraviolet projectors PJ1, PJ2, and PJ3 are installed so as to surround the cylindrical screen device 100.

  Note that, in the image display system according to the fifth embodiment, as in the image display system according to the fourth embodiment, a part of the projection image of the ultraviolet projector passes through the screen device 100 without being displayed on any curtain. In order to prevent this, when the screen device 100 is viewed from one side of the screen device 100, the strip-shaped curtains 101, 101,. It is preferable to arrange.

  When the screen device of the image display system according to the fifth embodiment has the configuration shown in FIG. 7, a person can pass through the cylindrical screen device 100 along the projection direction of each of the ultraviolet projectors PJ1, PJ2, and PJ3. it can. In the image display system according to the fifth embodiment, since the image is projected onto the cylindrical screen device 100 from various angles by the ultraviolet projector, it is possible to express an image with a more stereoscopic effect. Thereby, in the image display system according to the fifth embodiment, in addition to the same usage as the image display system according to the first to fourth embodiments, the usage can be different from the image display system according to the first to fourth embodiments. There is a possibility that an unprecedented effect can be obtained.

  In the image display system according to the fifth embodiment, the example in which the three projectors PJ1, PJ2, and PJ3 are disposed so as to surround the screen device 100 has been described. However, the configuration is such that more ultraviolet projectors are disposed. In addition, as in the first to fourth embodiments, two ultraviolet projectors PJ1 and PJ2 may be installed so as to sandwich the screen device 100.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the image display systems according to the first to fourth embodiments, the example in which one ultraviolet projector PJ1, PJ2 is installed so as to sandwich the screen device 100 has been described, but the present invention is not limited to this. Two or more ultraviolet projectors are installed on one side and the other side so as to sandwich the device 100, and two or more units are installed on each screen 101a of the screens 101, 101,. It is also possible to perform tiling projection that displays images from the ultraviolet projectors side by side or stacking projection that displays one image by superimposing images from two or more ultraviolet projectors.

  For example, in the example of FIG. 2, it is considered that two ultraviolet projectors are installed on each of the ultraviolet projectors PJ1 and PJ2, and tiling projection and stacking projection are performed by two ultraviolet projectors on each side. It is done.

  Further, in each of the above-described embodiments, the curtains 101, 101,... Have been described as examples in which the curtain surfaces 101a are arranged in parallel, but are not necessarily parallel and have a predetermined angle. You may make it oppose in the state which carried out. Further, the intervals between the screen surfaces 101a do not have to be constant, and can be arbitrarily set. Further, the number of curtains constituting the screen device 100 can be set to an appropriate number depending on the installation location and application of the image display system.

  DESCRIPTION OF SYMBOLS 100 ... Screen apparatus, 101 ... Curtain, 101a ... Curtain surface, 110 ... Support apparatus, S ... Slit, PJ1, PJ2, PJ3 ... Projector.

Claims (11)

A screen device comprising a plurality of curtains having phosphors excited by ultraviolet rays and transmitting ultraviolet rays and visible light; and a support device for suspending the plurality of curtains side by side at a predetermined interval;
A plurality of ultraviolet projectors that project images from different directions on the screen device and display the images on the screen;
An image display system comprising: The video display system according to claim 1,
An image display system comprising: a screen device that inserts a plurality of shielding screens that absorb ultraviolet rays and transmit visible light between the screens in the screen device. The image display system according to claim 1,
In the image display system, the amount of ultraviolet rays transmitted through the curtain is higher than the amount of ultraviolet rays absorbed by excitation of the phosphor. In the image display system according to any one of claims 1 to 3,
The image display system, wherein the curtain and the shielding curtain are made of a material that freely swings when an external force is applied. In the image display system according to any one of claims 1 to 4,
The image display system, wherein the curtain and the shielding curtain have at least one slit in a vertical direction of the curtain surface. In the image display system according to any one of claims 1 to 5,
The image display system, wherein the curtain is arranged concentrically with a predetermined interval between the curtain surfaces. In the image display system according to any one of claims 1 to 6,
The plurality of ultraviolet projectors are installed on one side and the other side across the screen device, and the ultraviolet projector installed on the one side performs projection in a front projection mode, and the ultraviolet projector installed on the other side. An image display system, wherein the projector performs projection in a rear projection mode. A screen device having a phosphor that is excited by ultraviolet rays, having a plurality of curtains that transmit ultraviolet rays and visible light, and a support device that suspends the plurality of curtains arranged at a predetermined interval,
An image display method, wherein a plurality of ultraviolet projectors project images from different directions on the screen device to display images on the screen. The image display method according to claim 8.
An image display method, comprising: a projection range designation type screen device in which a plurality of shielding curtains having ultraviolet absorptivity and light transmittance are inserted between the curtains in the screen device. A plurality of curtains having phosphors excited by ultraviolet rays and transmitting ultraviolet rays and visible light;
A support device for suspending the plurality of curtains side by side with a predetermined interval;
A screen device comprising: The screen device according to claim 10, wherein
A screen device, wherein a plurality of shielding screens that absorb ultraviolet rays and transmit visible light are inserted between the screens in the screen device.