JP5151430B2 - Image display system, image display method, and screen device - Google Patents

Description

  The present invention relates to an image display system for displaying an image using a 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 based 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 be used in shows and the like, and a new image display system combining a fog screen and a projector can be constructed.

  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 apparatus 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.

JP-A-4-287032 JP-A-7-56235

  However, before the fog screen and the white smoke screen both pass through the screen, it is possible to see the image projected on these screens, but when 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 projected 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.

  Also, 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.

  The present invention can enter and pass through a screen device, and can display a projected image without being affected by the presence of people or objects when entering or passing through a screen device. The present invention provides an image display system, an image display method, and a screen device for use in the image display system, which have various advantages such as being easy to install and move and being inexpensive because no large-scale construction is required for the installation. For the purpose.

  (1) An image display system according to the present invention is a support device that suspends a plurality of curtains so that a curtain having light permeability and light diffusibility faces a curtain surface of the curtain with a predetermined interval. And a plurality of projectors that project images onto the screen device from different directions and display the images on the screen.

  An image display system according to the present invention includes a curtain having light transmissivity and light diffusibility, and a support device that suspends a plurality of the curtains so that the curtain surfaces of the curtain face each other with a predetermined interval. Since the screen device is provided, a person or the like can enter the screen device. Also, since images are projected from different directions by a plurality of projectors, 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, since the image display system of the present invention has a plurality of curtains, and each curtain has a light transmitting property and a light diffusing property, the projection image from each projector is displayed on the screen of each curtain. You can display images.
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.

(2) In the image display system according to (1), it is preferable that the curtain has higher light transmission than light diffusion.
As a result, images projected from a certain projector can be simultaneously displayed on a plurality of curtains.

(3) In the image display system according to (1) or (2), it is preferable that the curtain is 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.

(4) In the image display system according to any one of (1) to (3), it is preferable that the curtain has at least one slit in a vertical direction of the curtain surface.
Thus, by providing the slits on the screens of the respective curtains, a person can pass through the screen device along the projection direction of the projector. As a result, the image display system of the present invention can be used, for example, by providing it in a passage in a building and displaying various information.

(5) In the image display system according to any one of (1) to (4), the curtain may be arranged concentrically so that the curtain faces face each other with a predetermined interval. preferable.
Thus, by arranging the curtains concentrically, it is possible to configure a cylindrical screen device as an appearance, and by installing a projector so as to surround such a cylindrical screen device, By projecting an image from the projector, it is possible to display an image with a stereoscopic effect.

  (6) In the image display system according to any one of (1) to (5), the plurality of projectors are installed on one side and the other side across the screen device, and the one side It is preferable that the projector installed in the projector performs projection in the front projection type projection mode, and the projector installed in the other side performs projection in the rear projection type projection mode.

  In this way, projectors are installed on both sides of the screen device, the projector installed on one side performs projection in the front projection type projection mode, and the projector installed on the other side projects rear projection type projection. By projecting in the mode, for example, even if the projected image from the projector projecting in the front projection mode is blocked by the presence of a person entering the screen device, the projected image of the other projector Is displayed in the rear projection mode, the information displayed on the screen device can be read not only by the person in the screen device but also by the surrounding people.

(7) In the image display system according to any one of (1) to (6), when the person enters the projection light from the plurality of projectors, the plurality of projectors It is preferable that the point is installed at a position where it does not directly enter the human eye.
As a result, even if a person enters the screen device and enters the projection light from the projector, the bright spot of the projector does not directly enter the eye, so the eyes can be protected, and a highly safe image display It can be a system.

(8) The image display method of the present invention includes a supporting device that suspends a plurality of curtains so that the curtain having light transmission and light diffusibility faces each other with a predetermined interval. And a plurality of projectors project images from different directions to display the images on the screen.
By performing image display by such a method, the same effect as the image display system described in (1) can be obtained. Note that the image display method of the present invention preferably has the same characteristics as the above (2) to (7).

(9) A screen device of the present invention includes a curtain having light transmissivity and light diffusibility, and a support device for suspending a plurality of the curtains so that the curtain surfaces of the curtain face each other with a predetermined interval. It is characterized by having.
By using the screen device having such a configuration and combining the screen device and a plurality of projectors, the image display system described in (1) can be configured. In addition, it is preferable that the screen device of the present invention has the characteristics described in the above (1) to (5).

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. In the image display system according to the first embodiment, a plurality of (in the first embodiment, five) curtains 101, 101,... And each curtain surface 101a of the curtains 101, 101,. A screen device 100 having a support device 110 suspended so as to face each other at a predetermined interval in the direction, and images are projected onto the screen device 100 from different directions, and each of the curtains 101, 101,. The projector 101 has a plurality of projectors PJ1 and PJ2 (two projectors in the first embodiment) that display images on the screen 101a.

  The curtains 101, 101,... Are made of a soft thin cloth having both light transmission and light diffusibility. In addition, the light transmittance of the cloth has a larger light transmittance than the light diffusivity.

  The support device 110 is spanned between two frames 111 and 112 provided along the projection direction of the projector, and a plurality of suspensions that suspend the curtains 101, 101,. Members 113, 113,... 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 invention 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. .. Are suspended from the suspension members 113, 113,... So as not to cause large “wrinkles” or the like in the lateral direction (y-axis direction in the drawing). Preferably it is lowered.

  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.

  In addition, one of the projectors PJ1 and PJ2 (referred to as projector PJ1) performs projection in the front projection mode, and the other projector (referred to as projector PJ2) is set to perform projection in the rear projection mode. It shall be. In the image display system according to the first embodiment, the two projectors PJ1 and PJ2 project the same 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 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 has the curtains 101, 101,... So that the curtain surfaces 101a of the curtains 101, 101,. Is arranged. Further, it is assumed that the intervals between the screen surfaces 101a are substantially equal (for example, intervals of about several tens of centimeters), and the screen surfaces 101a are parallel.

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

  Further, since the curtains 101, 101,... Have light transparency and light diffusibility, and the light transparency is higher than the light diffusibility, the images projected from the projectors PJ1, PJ2 are: 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 projector PJ1 and the image projected from the projector PJ2 are more clearly displayed as the curtains are closer to the projectors PJ1 and PJ2, and the curtains farther from the projectors PJ1 and PJ2 are more clearly displayed. However, if the number of curtains is about five as in the image display system according to the first embodiment, even if the image is displayed on the curtain farthest from each projector PJ1, PJ2. It is clear enough to be visible.

  By configuring the image display system using such a screen device 100, the images projected onto the screen device 100 by the projectors PJ1, PJ2 are displayed on the curtain surfaces 101a of the curtains 101, 101,. Is displayed as shown. Accordingly, 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 projector projects light from the projector PJ1, The projection image from 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 of the present invention, since a person can enter the screen device 100, the bright spots of the projectors PJ1 and PJ2 may enter the human eye. When entering the apparatus 100, since the projection light is irradiated to the person through the curtains 101, 101,..., It is given to the eyes as compared with the case where the bright spots of the projectors PJ1, PJ2 directly enter the eyes. The impact is greatly reduced.

  In order to reduce the influence on the human eye, it is preferable that the projectors PJ1 and PJ2 are installed at a position sufficiently higher than the general human eye as shown in FIG. By installing the projectors PJ1 and PJ2 at positions as shown in FIG. 4, it is possible to prevent the bright spots of the projectors PJ1 and PJ2 from directly entering the human eye. The projectors PJ1 and PJ2 are preferably installed at the positions as shown in FIG. 4 as well in other embodiments described later.

  By using the image display system according to the first embodiment, people can enter the screen device 100 and place objects. For example, 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 the projection image from the projector is displayed with a depth in 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. 5 is a diagram schematically illustrating an image display system according to the second 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 second 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 is shown in which two curtain surfaces 101 a of the curtains 101, 101,... Are provided with two slits S in the vertical direction at equal intervals. 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 second 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 figure) of the projectors PJ1 and PJ2. That is, the person can sequentially move the curtains 101, 101,... So as to split the slits S provided in the curtains 101, 101,. Can pass through along the projection direction.

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

[Embodiment 3]
FIG. 6 is a diagram schematically illustrating an image display system according to the third 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 third embodiment, the curtains 101, 101,... Of the screen device 100 are in the horizontal direction compared to the curtains 101, 101,. (Horizontal direction) has a narrow width, and such curtains (strip-shaped curtains 101, 101,...) Are randomly projected in the projection direction of the projectors PJ1, PJ2 and in the direction crossing the projection direction It is 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 projectors PJ1, PJ2 (the 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 (the x-axis direction in the drawing) of the projectors PJ1, PJ2.

  When the strip-shaped curtains 101, 101,... Are randomly arranged as shown in FIG. 6, a part of the projection image of the 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 along the projection direction (the x-axis direction in the drawing) of the projector, there is no large gap that allows the other side of the screen device 100 to be seen. It is preferable to arrange strip-shaped curtains 101, 101,.

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

  6, the strip-shaped curtains 101, 101,... Are parallel to the opposing curtain surfaces 101a of the strip-shaped curtains 101, 101,... Existing in the projection direction of the projectors PJ1, PJ2. However, the present invention is not limited to this example. For example, the facing screen surfaces 101a are parallel to each other, or the facing screen surfaces 101a have a slight angle. For example, the orientation of each screen 101a may be random.

[Embodiment 4]
FIG. 7 is a diagram schematically illustrating an image display system according to the fourth 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 fourth embodiment may use the curtains 101, 101,... Provided with the slits S in the image display system according to the second embodiment, and the image display system according to the third 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 fourth embodiment, concentric circles are formed such that the curtain surfaces 101a of a plurality of strip-shaped curtains 101, 101,. The external appearance of the screen device 100 is a cylindrical shape. In the image display system according to the fourth embodiment, the three 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 fourth embodiment, as in the image display system according to the third embodiment, a part of the projection image of the projector passes through the screen device 100 without being displayed on any curtain. In order to prevent this, the strip-shaped curtains 101, 101,... Are arranged so that when the screen device 100 is viewed from one side of the screen device 100, a large gap is not formed so that the other side of the screen device 100 can be seen. It is preferable to do.

  Since the screen device of the image display system according to the fourth embodiment has a configuration as shown in FIG. 7, a person can pass through the cylindrical screen device 100 along the projection direction of each projector PJ1, PJ2, PJ3. . In the image display system according to the fourth embodiment, since an image is projected from the projector onto the cylindrical screen device 100 from various angles, it is possible to express a more stereoscopic image. Thereby, in the image display system according to the fourth embodiment, in addition to the same usage as the image display system according to the first to third embodiments, the image display system according to the first to third embodiments can also be used differently. There is a possibility that it will be possible to achieve an unprecedented production effect.

  In the image display system according to the fourth embodiment, the example in which the three projectors PJ1, PJ2, and PJ3 are arranged so as to surround the screen device 100 has been described. However, the configuration is such that more projectors are arranged. Alternatively, as in the first to third embodiments, the two 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 third embodiments, the example in which the projectors PJ1 and PJ2 are installed so as to sandwich the screen device 100 has been described, but the present invention is not limited to this. Two or more projectors are installed on each of the one side and the other side so that 100 is sandwiched between two projectors 101, 101,... It is also possible to perform tiling projection that displays images side by side, or stacking projection that displays one image by superimposing images from two or more projectors.

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

  In the above-described embodiments, the curtains 101, 101,... Have been described as examples in which the curtain surfaces 101a face each other in a parallel state. However, the curtains 101a, 101,. You may make it oppose in a state. 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.

1 is a diagram illustrating a configuration of an image display system according to a first embodiment. FIG. 4 is a diagram showing a simplified image display system according to a second embodiment. The figure which shows typically the state which projected on the screen apparatus 100 with the two projectors PJ1 and PJ2. It is a figure which shows the example of the installation position of projector PJ1, PJ2 at the time of considering the influence given to a human eye. FIG. 4 is a diagram showing a simplified 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.

Explanation of symbols

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

Claims (8)

A screen device having a curtain having a light transmission property and light diffusion property, and a supporting device to reduce Ri suspended front Kimaku,
A plurality of projectors that project images from different directions onto the screen device and display images on the curtain surface;
I have a,
A plurality of the curtains are arranged along a projection direction of the projector and a direction crossing the projection direction, and are randomly arranged in a direction crossing the projection direction . The image display system according to claim 1,
The image display system , wherein the curtain is randomly arranged in the projection direction and in a direction crossing the projection direction . The image display system according to claim 1 or 2 ,
The curtain is an image display system characterized in that light transmittance is higher than light diffusibility. In the image display system in any one of Claims 1-3,
The image display system, wherein the curtain is made of a material that freely swings when an external force is applied. In the image display system in any one of Claims 1-4 ,
The plurality of projectors are installed on one side and the other side across the screen device, the projector installed on the one side performs projection in a front projection mode, and the projector installed on the other side is a rear projector. An image display system that performs projection in a projection mode. In the image display system according to any one of claims 1 to 5 ,
The plurality of projectors are installed at a position where a bright spot of the projector does not directly enter a human eye when a person enters the projection light from the plurality of projectors. system. A curtain having a light transmission property and light diffusion property, prior to installing the screen device and a hanging Ri lowering supporting device Kimaku, from said different directions multiple projectors before Symbol screen device by projecting an image an image display method for displaying an image on a curtain surface of the curtain,
An image display method , wherein a plurality of the curtains are arranged along a projection direction of the projector and a direction crossing the projection direction, and randomly arranged in a direction crossing the projection direction . A screen device for displaying an image projected from a projector,
A curtain having light permeability and light diffusibility;
And the supporting device to lower Ri suspended the previous Kimaku,
I have a,
A plurality of the curtains are arranged along a projection direction of the projector and a direction crossing the projection direction, and are randomly arranged in a direction crossing the projection direction .