JP7315926B2 - Video display device and vehicle - Google Patents

Description

The present invention relates to a pepper's ghost type image display device and a vehicle equipped with the same.

Among video display devices, there is a pepper's ghost (visual trick) type holographic projection device provided on a stage or the like, as in Non-Patent Document 1 and the like. This Pepper's Ghost type holographic projector is installed on a stage with a screen made up of half mirrors tilted in the vertical direction. Then, when the image displayed on the liquid crystal display device on the floor is projected onto the screen, a virtual image is generated on the opposite side of the screen as viewed from the audience, making it appear as if the characters and performers actually exist on the stage.

Further, Patent Document 1 discloses a mobile image display device installed on the bed of a truck, although it is not a pepper's ghost type holographic projection device.

JP 2011-17735 A

“StudioTED”, [online], Spin Co., Ltd., [searched on January 8, 2020], Internet <URL: http://studioted. jp/>

The video display device of Non-Patent Document 1 is installed on the stage and is not mobile. A Pepper's Ghost type image display device that can be moved by a vehicle such as a truck is desired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a Pepper's Ghost type image display device as a vehicle accessory and a vehicle equipped with the same.

An image display device for solving the above-mentioned problems is a vehicle accessory, and includes a film-like screen having a half-mirror performance, a display body for displaying an image projected on the screen, and the screen in front of and behind the screen. a support structure held in an inclined state in a direction; a first movement mechanism for moving the support structure in the front-rear direction; and a second movement mechanism for moving the display body in the up-down direction. A moving mechanism moves the support structure from a storage position within the cargo bed to an outer position outside the cargo bed, and then the second moving mechanism moves the display body from the standby position to the reproduction position, thereby displaying the display. A virtual image of the image displayed on the body is generated in a space closer to the loading platform than the screen. According to the above configuration, the image display device can be moved to an arbitrary place such as an event venue by being mounted on a truck or the like.

In the image display device, the support structure includes an upper guide portion and a lower guide portion with which the screen is engaged, and a tension mechanism that applies tension to the screen. A projection area on which the image is projected is between the guide portion and the lower guide portion, and the tension mechanism is an upper screen holding portion that holds an upper end portion of the screen, and is attached to the upper guide portion. and a lower screen holding portion for holding the lower end portion of the screen, the lower screen holding portion being positioned rearward with respect to the lower guide portion. an upper drive for pulling the upper screen holder and a lower drive for pulling the lower screen holder so as to apply tension to the screen, wherein the upper drive pulls the upper screen holder; Preferably, the projection area is tensioned by pulling backwards and the lower drive pulls the lower screen holder backwards. According to the above configuration, since tension is applied to the projection area on the screen, it is possible to suppress the occurrence of wrinkles in the projection area and to generate a clear virtual image.

In the image display device described above, a mounting frame capable of rotating in the front-rear direction is provided at a position on the back side of the loading platform in the support structure, and the mounting frame is one of the upper driving section and the lower driving section. A driving portion positioned on the back side of the loading platform is mounted, and the mounting frame rotates so as to be folded forward of the support structure when the support structure is positioned at the storage position. and is rotated so as to be deployed rearwardly of the support structure when the support structure is positioned at the outer position. According to the above configuration, by folding the tension mechanism when the support structure is stored, the depth of the support structure in the front-rear direction can be reduced, and the support structure can be stored in the cargo bed.

In the image display device described above, at least one of the upper guide portion and the lower guide portion preferably has a low friction layer on at least a contact portion with the screen. According to the above configuration, when tension is applied to the screen by the tension mechanism, the friction between the screen and the upper guide portion and the lower guide portion is reduced, and the screen slides relative to the upper guide portion and the lower guide portion. can be made

In the image display device described above, at least one of the upper guide portion and the lower guide portion preferably includes a jetting portion for jetting air to the engaged screen. According to the above configuration, when tension is applied to the screen by the tension mechanism, a gap is created between the screen and the guide portion by the air layer, and the slidability of the screen with respect to the upper guide portion and the lower guide portion can be enhanced. can.

In the image display device described above, the first movement mechanism includes a fixed rail installed on the loading platform, and a movable rail continuous with the fixed rail and extending out of the loading platform. The movable rail is rotatably connected to the movable rail at the position of the front end of the loading platform when the support structure is positioned at the storage position. It preferably stands against a fixed rail and is folded into a continuous position with respect to said fixed rail before said support structure is moved from said stowed position to said outer position. According to the above configuration, the image display device can be accommodated in the cargo bed by erecting the movable rail of the first moving mechanism at the position of the front end portion of the cargo bed.

According to the configuration as described above, it is possible to provide a Pepper's Ghost type image display device as a vehicle accessory.

FIG. 10 is a perspective view of the truck with the image display device mounted on the bed, showing a state during image reproduction; FIG. 2 is a perspective view conceptually showing a state in which a virtual image is generated by a Pepper's Ghost type video display device; FIG. 2 is a front view of the image display device in the state of FIG. 1; FIG. 2 is a side view of the video display device in the state of FIG. 1; FIG. 4 is a perspective view of the upper guide and tensioning mechanism; (a) is a conceptual side view of the tension mechanism, (b) is a side view showing a state in which the screen is engaged with the lower guide portion, and (c) is a state in which air is jetted from the jetting portion. side view shown. 1 is a block diagram of a video display device; FIG. 4 is a flowchart showing the operation of the video display device; The side view which shows the state with which the video display apparatus was accommodated in the carrier. FIG. 3 is a perspective view showing a state in which the wings of the loading platform are open; The perspective view which shows the state which the movable rail was laid down to the outside of the loading platform. FIG. 12 is a side view of the image display device in the state of FIG. 11; The perspective view which shows the state which the support structure moved out of the loading platform. FIG. 14 is a perspective view showing a state in which the display body is lowered from the state shown in FIG. 13;

A video display device as an embodiment will be described below with reference to FIGS. 1 to 14. FIG.
〔overall structure〕
As shown in FIG. 1 , the image display device 10 is a vehicle-mounted item mounted on the loading platform 2 of the truck 1 . The image display device 10 is a pepper's ghost type image display device, and includes a screen 20 having a half-mirror performance, a display body 30 for displaying an image projected onto the screen 20, and a support structure 40 for holding the screen 20. and It also has a first moving mechanism 60 that moves the support structure 40 inside and outside the loading platform 2 and a second moving mechanism 70 that moves the display 30 up and down.

The cargo bed 2 has a so-called wing body, and includes a floor surface 2a, a top surface 2b, front and rear surfaces in the front-rear direction of the vehicle, and one side surface in the width direction of the vehicle and a side surface 2c constituting the wing 3. , a side surface 2d that is the other side surface, and a wing 3 configured by a part of the side surface 2c and the top surface 2b.

When using the image display device 10 , first, the wings 3 are opened above the loading platform 2 . Next, the first moving mechanism 60 moves the support structure 40 from the storage position inside the loading platform 2 to the laterally outer position of the loading platform 2 . After that, the second moving mechanism 70 lowers the display 30 from the standby position, which is the height when the display 30 is stored in the loading platform 2 , to the reproducing position lower than the floor surface 2 a of the loading platform 2 .

Here, in the image display device 10, the front of the screen 20 is the front, the cargo bed 2 side is the rear of the screen 20, and the audience seats 4 are the front of the screen 20. As shown in FIG. As shown in FIG. 2 , when an image is displayed on the display 30 in this state, the image displayed on the display 30 is projected onto the screen 20 . A virtual image 5 of the video displayed on the display 30 is generated through the screen 20 in the space 2e closer to the loading platform 2 than the screen 20 from the observer in the audience seat 4 in front of the screen 20 . From the observer's point of view, it seems as if the characters and performers actually exist in the space 2e. At this time, the image display device 10 is covered with a blackout curtain 6 or the like to block external light, so that the virtual image 5 is generated more clearly.

[Explanation of the screen]
The screen 20 is composed of a half mirror, and is a resin film having a rectangular shape here. The screen 20 comprises an upper area 21 , a lower area 22 and a projection area 23 between the upper area 21 and the lower area 22 . The projection area 23 is positioned forward on the audience seat 4 side on the upper side, and positioned on the rear side on the cargo bed 2 side on the bottom side. °. The upper region 21 is a portion above the projection region 23 that extends rearward with respect to the projection region 23 , and the lower region 22 is a portion that extends rearward from the projection region 23 below the projection region 23 . . The screen 20 is, for example, Eyeliner (registered trademark).

[Description of display]
The display 30 is a flat panel display such as a liquid crystal display panel or an organic EL panel. The display body 30 is disposed below the screen 20 on a holding frame 71 provided on the second moving mechanism 70 with the display surface 31 of the display body 30 directed upward. The display surface 31 is located below the projection area 23 , and the projection area 23 is at an angle of 45° with respect to the display surface 31 .

[Explanation of support structure]
As shown in FIGS. 3 and 4, the support structure 40 includes a pair of support frames 41 arranged in the longitudinal direction of the vehicle, that is, in the lateral direction of the screen 20. As shown in FIGS. Further, between the pair of support frames 41, an upper guide frame 42 as an upper guide portion arranged above the support frames 41 and a lower guide portion as a lower guide portion arranged below the support frames 41 A guide frame 43 is provided. The support structure 40 is made of steel. It also includes a tensioning mechanism 46 positioned near the upper guide frame 42 and the lower guide frame 43 .

As shown in FIG. 4, each support frame 41 includes front and rear frames 41a extending in the longitudinal direction of the screen 20 parallel to the floor surface 2a of the loading platform 2, and vertical frames extending in the height direction from the front ends of the front and rear frames 41a. 41b, and an inclined frame 41c connecting the upper end of the vertical frame 41b and the rear end of the front and rear frames 41a. Each support frame 41 has a right triangle shape as a whole. A part of a first moving mechanism 60 that linearly moves the support structure 40 in and out of the loading platform 2 is provided on the front and rear frames 41a. The projection area 23 of the screen 20 is positioned between the tilt frames 41c. A speaker 7 is arranged on the vertical frame 41 b so as to face the audience seats 4 . Further, the vertical frame 41b may be provided with other equipment.

In each support frame 41, an upper mounting frame 41d extending rearward parallel to the floor surface 2a is provided at a corner formed by the upper end of the vertical frame 41b and the upper end of the inclined frame 41c. A lower attachment frame 41e is provided at a corner formed by the rear end of the front and rear frame 41a and the rear end of the inclined frame 41c. An upper guide frame 42 as an upper guide portion is bridged over the front end portion of each upper mounting frame 41d, and a lower guide frame 43 as a lower guide portion is bridged over each lower mounting frame 41e.

The upper guide frame 42 is a cylindrical pipe, connects the support frames 41 at the upper side, and is engaged with the upper side of the screen 20 . Specifically, in the screen 20 , the position where the upper guide frame 42 is engaged is the boundary between the projection area 23 and the upper area 21 . The screen 20 is folded back so that the angle formed by the upper region 21 and the projection region 23 is approximately 45°, and the projection region 23 is below the upper guide frame 42 and extends rearward from the upper guide frame 42. The area to be filled becomes the upper area 21 .

The lower guide frame 43 is also a cylindrical pipe, connects the support frames 41 at the lower side via the lower mounting frame 41e, and engages with the lower side of the screen 20. As shown in FIG. Specifically, in the screen 20 , the position where the lower guide frame 43 is engaged is the boundary between the projection area 23 and the lower area 22 . The screen 20 is bent so that the angle formed by the lower area 22 and the projection area 23 is approximately 135°, and the projection area 23 is above the lower guide frame 43 and is behind the lower guide frame 43. The region extending to the lower region 22 becomes the lower region 22 .

As shown in FIGS. 5 and 6 , the upper guide frame 42 and the lower guide frame 43 are provided with a low-friction layer 44 at least in areas that contact the screen 20 . 5 shows the peripheral portion of the upper guide frame 42 and does not show the peripheral portion of the lower guide frame 43. As shown in FIG. The low-friction layer 44 is, for example, fluororesin. The low-friction layer 44 reduces friction on the screen 20 and allows the screen 20 to slide smoothly on the upper guide frame 42 and the lower guide frame 43 . In addition, the upper guide frame 42 and the lower guide frame 43 are provided with jetting portions 45 composed of a large number of minute holes at least in the area in contact with the screen 20 . Compressed air is supplied to the upper guide frame 42 and the lower guide frame 43 , and the compressed air is jetted from the jet portion 45 . As a result, when the screen 20 sticks to the upper guide frame 42 and the lower guide frame 43 in a high humidity environment or a high temperature environment, an air layer is formed between them and the screen 20 can be peeled off. Further, the shape and size of the fine holes of the injection part 45 are not particularly limited, and the fine holes are provided so that the entire screen 20 is peeled off from the upper guide frame 42 and the lower guide frame 43 by compressed air.

[Description of tension mechanism]
The tensioning mechanism 46 includes an upper screen holding portion 47a that holds the upper end of the upper region 21 of the screen 20, a lower screen holding portion 48a that holds the lower end of the lower region 22 of the screen 20, and an upper screen holding portion 47a. An upper driving portion 47b for pulling and a lower driving portion 48b for pulling the lower screen holding portion 48a are provided. Since the upper screen holding portion 47a and the upper driving portion 47b and the lower screen holding portion 48a and the lower driving portion 48b have the same configuration, they will be described collectively below.

The upper screen holding portion 47a and the lower screen holding portion 48a are each composed of two aluminum bars 49, and the two aluminum bars 49 hold the end portion of the screen 20 so as to be sandwiched therebetween. Each aluminum bar 49 is an elongated member having a rectangular cross section, and sandwiches the upper region 21 and the lower region 22 with its planar portion.

The upper driving portion 47b and the lower driving portion 48b are both air cylinder units 50. As shown in FIG. The upper driving portion 47b and the lower driving portion 48b each include a cylinder 50a, a piston 50b, and a connecting portion 50c to which the screen holding portion is connected. The cylinder 50 a is connected to an air compressor 51 . A connecting portion 50c is provided at the tip of the piston 50b. The connecting portion 50c has a V-shape, and is bolted to fix the upper screen holding portion 47a and the lower screen holding portion 48a to the tip of the piston 50b. The upper drive 47b pulls the upper region 21 rearwards and the lower drive 48b pulls the lower region 22 rearwards to apply tension to the projection region 23 .

The upper driving portion 47b is provided on the upper mounting frame 41d. On the other hand, the lower driving portion 48b is provided on a lower mounting frame 41e which is rotatably provided on the lower end portion of the inclined frame 41c (see FIG. 4).

The inclined frame 41c is attached to the lower attachment frame 41e so as to be rotatable about the rotation shaft portion 52. As shown in FIG. The inclined frame 41c is provided with a frame driving portion 53 that serves as a driving portion for rotating the lower mounting frame 41e. The frame drive unit 53 uses an electric motor 54 as a drive source. The lower attachment frame 41e is folded toward the inclined frame 41c when the support structure 40 is accommodated in the loading platform 2 by driving the frame driving portion 53. As shown in FIG. When the support structure 40 is moved out of the loading platform 2, the support structure 40 is deployed rearward, and the lower driving portion 48b can pull the lower region 22 rearward. A balancer 55 for stably rotating the lower mounting frame 41e is provided on the opposite side of the rotating shaft portion 52 with respect to the lower mounting frame 41e.

A stage 8 is provided on the upper portion of the lower mounting frame 41e so as to cover the lower driving portion 48b. An actual performer can stand on this stage 8, and audio equipment such as microphones, amplifiers, and speakers can be installed, and the stage 8 can be used as a stage. The stage 8 includes a floor portion that constitutes the stage, and leg portions that stand on the rear surface of the floor portion. It has a height that can cover the The stage 8 is rotatably supported on the side surface 2d of the floor surface 2a of the loading platform 2, and is arranged on the floor surface 2a so as to cover the lower driving section 48b during image reproduction. It is erected along the side 2d.

[Description of the first moving mechanism]
The first moving mechanism 60 includes a pair of fixed rails 61 installed on the floor surface 2a of the loading platform 2, and a movable rail 62 rotatably attached to the front ends of the fixed rails 61 (FIGS. 3 and 4). 4). The first moving mechanism 60 includes a drive gear 64a rotated by a motor 63 serving as a drive source, and guide rollers 64b running on fixed rails 61 and movable rails 62, mounted on the front and rear frames 41a on the support structure 40 side. I have.

The fixed rail 61 is a rail that extends in the front-rear direction on the floor surface 2a of the loading platform 2, and is a rail that engages a rack gear 61a with which the drive gear 64a is meshed, and a groove provided in the circumferential direction of the guide roller 64b. and a portion 61b. The rear end of the movable rail 62 is rotatably attached to the front end of the fixed rail 61 via a hinge 65 . The hinge 65 is positioned at the front end of the floor surface 2a when the wings 3 of the loading platform 2 are opened.

When the support structure 40 is accommodated, the movable rail 62 stands perpendicular to the floor surface 2a at the front end of the floor surface 2a. It connects and forms a straight line. The length of the movable rail 62 is slightly shorter than the height of the loading platform 2 so that it can be accommodated on the loading platform 2 in an upright state. The movable rail 62 also has a rack gear 62a with the same pitch connected to the rack gear 61a of the fixed rail 61, and a rail portion 62b connected to the rail portion 61b of the fixed rail.

The vertical frame 41b is provided with a winch 66 as a lifting device, and the movable rail 62 is provided with an engagement piece 62c with which the hook 66a of the winch 66 is engaged when the movable rail 62 is rotated. It is When the wings 3 of the cargo bed 2 are opened, the movable rail 62 is knocked down by a winch 66 from an upright state into a continuous state with the fixed rail 61 before moving the support structure 40 to the outside of the cargo bed 2.例文帳に追加When the image display device 10 is stored in the cargo bed 2 , the support structure 40 is pulled up by the winch 66 after being stored in the cargo bed 2 .

A support leg 67 is provided at the tip of the movable rail 62 . The support leg 67 is stored in a groove 62d provided in the movable rail 62 along the movable rail 62 when the movable rail 62 is stored in the cargo bed 2, and the movable rail 62 and the fixed rail 61 are stored. When it is rotated in a continuous state, it is rotated from the groove 62d in the movable rail 62 and fixed so as to be vertical to the movable rail 62 and abut on the ground.

[Description of Second Moving Mechanism]
The second moving mechanism 70 includes a holding frame 71 that holds the display body 30, a vertical frame 72 that holds the holding frame 71 so that it can be raised and lowered, and an elevation driving unit 74 that lifts and lowers the holding frame 71 (see FIG. 3 and Figure 4). The holding frame 71 is a rectangular frame, and is guided up and down by the upper and lower frames 72 . One end of a lifting chain 73 is connected to the holding frame 71 .

The vertical frame 72 includes a fixed frame 72a that is fixed to the support frame 41, and an elevation frame 72b that is guided by the fixed frame 72a and movable in the vertical direction. The elevation driving section 74 is provided on the inclined frame 41c and includes a hydraulic cylinder unit 75. A cylinder 75a is provided on the inclined frame 41c. ing. The moving portion 75 c is connected to the other end of the lifting chain 73 , and the lifting chain 73 is guided between the moving portion 75 c and the holding frame 71 by a plurality of guide gears 76 . When the moving portion 75c moves to the upper end side of the inclined frame 41c, the holding frame 71 is positioned at a raised position at approximately the same height as the upper and lower frames 72, and when the moving portion 75c moves to the lower end side of the inclined frame 41c, located in the lowered position. The raised position is between the movable rails 62 and is at the same height as the movable rails 62 . The lowered position is the playback position where the image is played back on the display 30 .

The display 30 is lowered by the second moving mechanism 70, and by adjusting the amount of descent, it is possible to arbitrarily adjust the position where the virtual image 5 is generated in the front-rear direction of the space 2e.

[Explanation of control block]
As shown in FIG. 7, the image display device 10 configured as described above includes a controller 90 . The controller 90 includes a mechanical controller that controls driving units such as the first moving mechanism 60 and the second moving mechanism 70, and a performance controller that controls the display 30, audio equipment, lighting equipment, and the like during image reproduction. ing. The controller 90 is an information processing device such as a microcomputer or a computer, and controls the image display device 10 according to a control program based on input from an operation unit 91 including operation buttons, slide switches, volume switches, a keyboard, a mouse, and the like. Controls overall behavior. The controller 90 is arranged, for example, in a control room near the support structure 40 of the cargo bed 2 . The operation unit 91 is also divided into an input system to the mechanical controller and an input system to the performance controller.

Specifically, the controller 90 serves as a mechanical controller to drive and control the motor 63 serving as the driving source of the first moving mechanism 60 that moves the support structure 40 in and out of the loading platform 2, and the second moving mechanism that moves the display 30 up and down. It drives and controls the hydraulic cylinder unit 75 of the moving mechanism 70 . Further, the controller 90 drives and controls the electric motor 54 of the frame driving section 53 that rotates the lower mounting frame 41e to which the lower driving section 48b of the tension mechanism 46 is mounted.

Further, the controller 90 controls the air compressor 51 as a mechanical controller. The upper driving portion 47b and the lower driving portion 48b that constitute the tension mechanism 46 are configured by an air cylinder unit 50, and the injection portion 45 that the upper guide frame 42 and the lower guide frame 43 have is an air compressor 51. Compressed air supplied from is injected. When the screen 20 is stuck to the upper guide frame 42 and the lower guide frame 43, the controller 90 controls the opening and closing of the control valve of the air compressor 51 to cause the injection part 45 to inject compressed air, and the upper guide frame 42 and the sticking of the screen 20 to the lower guide frame 43 is eliminated. After that, the controller 90 drives the upper drive section 47 b and the lower drive section 48 b to apply tension to the screen 20 .

Furthermore, the controller 90 controls an input/output unit 92, a storage unit 93, a reproduction unit 94, etc. as a performance controller. The controller 90 is connected to an input/output unit 92 that exchanges data with an external network or removable recording medium. The input/output unit 92 downloads content data to be reproduced and saves the file in the storage unit 93 configured by a hard disk drive or solid state drive. Also, when the content data stored on the cloud is to be stream-played, it is temporarily stored in the storage unit 93 . Furthermore, it receives live data from the server, broadcast waves of digital broadcasting, and the like.

The reproducing unit 94 performs decoding processing and the like on the data stored in the storage unit 93 to reproduce the content data. It also receives live data from the server and performs streaming playback. The reproducing unit 94 is connected to the display 30, the speaker 7, and the like, and displays video data on the display 30 and outputs audio data from the speaker 7. FIG. Examples of content data include video data of concert performances of artists, events, movies, etc., promotional video data of stores and products, and live data of sports and the like.

[Description of Overall Operation (Action)]
As a preparation for the image display device 10 , the screen 20 is first installed on the support structure 40 . At this time, the upper driving portion 47b and the lower driving portion 48b are not driven, and the support structure 40 is installed in the storage position of the loading platform 2 with the tension of the screen 20 relaxed. In this state, it is transported to the event site.

As shown in FIG. 8, the operation of using the video display device 10 includes steps S1 to S7. As shown in FIG. 9, the image display device 10 is housed in the carrier 2 when it is transported. When using the image display device 10, the wings 3 are first opened above the loading platform 2, as shown in FIG.

Next, as shown in FIGS. 11 and 12, the movable rail 62 of the first moving mechanism 60 is suspended from a winch 66 provided on the vertical frame 41b from a state in which it stands vertically on the front end of the loading platform 2. while rotating to the outside of the loading platform 2 with the hinge 65 as the axis of rotation (step S1). After that, the support leg 67 stored in the groove 62d provided in the movable rail 62 is rotated around the front end of the movable rail 62 and fixed so as to be perpendicular to the movable rail 62 and to abut on the ground. .

Next, as shown in FIG. 13, the support structure 40 is moved from the storage position inside the loading platform 2 to the outer position outside the loading platform 2 by the first moving mechanism 60 (step S2). Specifically, according to the input from the operation unit 91, the controller 90 drives the motor 63 in the first moving mechanism 60 to move the support structure 40 on the fixed rail 61 and the movable rail 62 via the driving gear 64a. . This moves the support structure 40 from the stowed position to the outer position outside the cargo bed 2 .

Next, as shown in FIG. 14, the display body 30 is lowered from the standby position to the reproduction position by the second moving mechanism 70 (step S3). Specifically, the controller 90 drives the hydraulic cylinder unit 75 in the second moving mechanism 70 in accordance with the input from the operating portion 91 to move the moving portion 75c from the upper end side to the lower end side of the inclined frame 41c. As a result, the holding frame 71 is lowered, thereby lowering the display body 30 from the standby position to the reproduction position.

Next, as shown in FIGS. 1 and 4 referred to above, the lower mounting frame 41e is folded toward the inclined frame 41c by the frame driving section 53 provided on the inclined frame 41c, and is then moved from the state of being folded toward the support structure. 40 is deployed behind (step S4). Specifically, the controller 90 drives the electric motor 54 of the frame drive section 53 in the support structure 40 according to the input from the operation section 91, and folds the lower mounting frame 41e toward the inclined frame 41c. Deployed to the rear of the support structure 40 from the state.

The screen 20 is then tensioned by the tensioning mechanism 46 (step S5). Specifically, when the screen 20 is stuck to the guide frames 42 and 43 in a high-temperature environment or a high-humidity environment, the controller 90 controls the air compressor 51 to move the guide frame 42 according to an input from the operation unit 91 . , 43 are supplied with compressed air, and the compressed air is jetted from the injection portions 45 to the screen 20 . As a result, the screen 20 sticking to the upper guide frame 42 and the lower guide frame 43 can be peeled off. Thereafter, compressed air is supplied from the air compressor 51 to the upper driving portion 47b and the lower driving portion 48b, the upper driving portion 47b pulls the upper region 21 rearward with the upper guide frame 42 as a fulcrum, and the lower driving portion 48b , the projection area 23 is tensioned by pulling the lower area 22 rearward with the lower guide frame 43 as a fulcrum.

Next, the stage 8 is set up in the cargo bed 2, and the support structure 40 and the cargo bed 2 are covered with the blackout curtain 6 (step S6). Specifically, the stage 8 is rotatably set against the side surface 2d in the loading platform 2. The stage 8 is tilted so as to cover the lower driving section 48b on the upper portion of the lower mounting frame 41e. (see FIGS. 4 and 9). Also, the support structure 40 and the loading platform 2 are covered with a blackout curtain 6 except for the front surface of the screen 20 (see FIG. 1). That is, the blackout curtain 6 is arranged between the tip of the wing 3 and the upper guide frame 42 when viewed from the front, between the movable rail 62 and the ground when viewed from the front, and between the tip of the wing 3 and the ground when viewed from the side. be. Furthermore, it is arranged so as to cover the tires of the vehicle from the front end of the floor surface 2a to the ground. This suppresses external light from entering the optical path from the display 30 to the space 2e where the virtual image 5 is generated.

By reproducing the image on the display 30, the image displayed on the display surface 31 is projected onto the screen 20 (step S7). Specifically, the controller 90 causes the reproduction section 94 to reproduce data input to the input/output section 92 and data stored in the storage section 93 according to the input from the operation section 91 . As a result, the display 30 displays the video data and the speaker 7 emits the audio data. An image displayed on the display surface 31 of the display 30 is projected onto the screen 20 . When the screen 20 is viewed from the front of the screen 20, the image displayed on the display 30 appears as a virtual image 5 in the space 2e.

A roll-shaped screen is installed on the upper side 2d of the loading platform 2, and this screen is pulled out and unfolded along the side 2d during image reproduction. In this case, a projector is installed on the upper mounting frame 41d, and the background or the like is displayed on the screen on the side surface 2d of the loading platform 2 in synchronization with the content data reproduced on the display 30. FIG. As a result, the background can be displayed behind the virtual image 5 to express the depth, so that the presentation effect can be enhanced. Moreover, the illumination device can also be installed on the upper mounting frame 41 d or the stage 8 . Also, by synchronizing the lighting with the content data, it is possible to further enhance the presentation effect. For example, for public viewing, live data of competitions such as sports and concert images of artists are played in real time. As a result, the presence of the actual competition venue can be conveyed to the event venue.

Further, acoustic devices such as a microphone, an amplifier, a speaker, and musical instruments can be installed on the stage 8 of the carrier 2, so that the stage can be used as a stage on which performers such as real musical instrument players actually perform. In this case, the performer will stand behind the screen 20 . Thereby, for example, the real performer and the virtual image 5 can be played together. Furthermore, the virtual image 5 can be used to represent a decorative element such as petals falling on the actual performer on the stage 8 .

After the end of the event, the blackout curtain 6 is removed, the upper driving section 47b and the lower driving section 48b are stopped, and the tension of the screen 20 is relaxed. Next, the display body 30 is moved to the standby position by the second moving mechanism 70, and the lower mounting frame 41e is rotated forward. After that, the support structure 40 is moved from the outer position to the standby position by the first moving mechanism 60 , and the movable rail 62 is stored in the loading platform 2 . Finally, the wing 3 is closed to convey to the next destination.

According to the above embodiment, the following effects can be obtained.
(1) The image display device 10 can be moved by a vehicle. Specifically, the image display device 10 includes a first moving mechanism 60 that moves the support structure 40 that holds the screen 20 and a second moving mechanism 70 that moves the display 30 . Therefore, the image display device 10 can be moved to an arbitrary place such as an event site by being mounted on the loading platform 2 such as a truck.

(2) Since the video display device 10 has the first moving mechanism 60 and the second moving mechanism 70, it is possible to easily perform the installation work and the withdrawal work.
(3) When the image display device 10 is used, the support structure 40 is moved from the storage position inside the loading platform 2 to the outside position outside the loading platform 2 by the first moving mechanism 60, and a space 2e is created behind the screen 20. . As a result, the stage 8 can be provided with a lighting device or a sound device on the loading platform 2, or can be used as a stage to make an actual performer stand, thereby increasing the degree of freedom of presentation in the image display device 10.例文帳に追加

(4) The display 30 is lowered by the second moving mechanism 70, and by adjusting the amount of descent, the position where the virtual image 5 is generated in the front-rear direction of the space 2e can be arbitrarily adjusted.

(5) The support structure 40 is tensioned against the screen 20 with an upper guide frame 42 to which the upper region 21 of the screen 20 is engaged and a lower guide frame 43 to which the lower region 22 of the screen 20 is engaged. and a tensioning mechanism 46 that imparts a Therefore, the screen 20 is pulled by the tension mechanism 46 with the upper guide frame 42 and the lower guide frame 43 as fulcrums, so that tension is applied to the projection area 23 on the screen 20 in the vertical direction. This suppresses the occurrence of wrinkles in the projection area 23, so that a clear virtual image 5 can be generated.

(6) When the image display device 10 is transported by a truck or the like, the tension mechanism 46 loosens the tension of the screen 20 and stores it. Therefore, when the image display device 10 is not used, the screen 20 can be stored without applying a load, and the screen 20 is less likely to be damaged.

(7) Since the screen 20 is hung on the upper guide frame 42 and the lower guide frame 43 even when the image display device 10 is moved by a vehicle, the screen 20 can be attached and detached each time the image display device 10 is used. It can be used repeatedly without the need to Therefore, in setting up at the venue, the support structure 40 is unfolded and the screen 20 is automatically stretched mechanically rather than manually, thereby enabling speedy setup and reducing the number of workers involved in the setup work.

(8) The lower attachment frame 41e is attached so as to be rotatable using the rotation shaft portion 52 at the lower end of the inclined frame 41c as a rotation fulcrum. Thus, the lower mounting frame 41e is positioned behind the support structure 40 when the support structure 40 is in the outer position, and the lower mounting frame 41e is positioned behind the support structure 40 when the support structure 40 is in the stowed position. The frame 41e is folded toward the inclined frame 41c. As a result, when the support structure 40 is stored, the lower mounting frame 41e can be folded to reduce the depth of the support structure 40 in the front-rear direction and store it in the loading platform 2.例文帳に追加

(9) The upper guide frame 42 and the lower guide frame 43 are provided with a low friction layer 44 at least at the contact portion with the screen 20 . This reduces the friction between the screen 20 and the upper guide frame 42 and the lower guide frame 43 when tension is applied to the screen 20 by the tension mechanism 46, and the upper guide frame 42 and the lower guide frame 43 of the screen 20 are reduced. It is possible to increase the slidability against. As a result, the screen 20 is less likely to be damaged, so that the service life of the screen 20 is extended and the screen 20 can be used repeatedly.

(10) The upper guide frame 42 and the lower guide frame 43 are provided with the injection part 45 which injects compressed air to the screen 20 with which they are engaged. As a result, when tension is applied to the screen 20 by the tension mechanism 46, the screen 20 sticking to the upper guide frame 42 and the lower guide frame 43 can be peeled off. The slidability with respect to the side guide frame 43 can be enhanced.

(11) When the support structure 40 is in the retracted position, the movable rail 62 is held at the front end of the loading platform 2 in an upright state with respect to the fixed rail 61, and the support structure 40 is in the outer position. It is knocked down outside of the loading platform 2 so as to be in a continuous state with the fixed rail 61 before being moved to the top. As a result, the support structure 40 serves as a foothold when it is moved from the storage position to the outside position, and can be stored in the cargo bed 2 when stored.

Note that the image display device 10 can be modified as described below.
The vehicle on which the image display device 10 is mounted may be a vehicle such as a truck in which a cab, which is a part where people ride such as a driver's seat, and a loading platform 2 are integrated, or a vehicle such as a tractor and a trailer in which the driver's seat is installed. and a towed vehicle serving as the loading platform 2.

- The rear end of the movable rail 62 and the front end of the fixed rail 61 may be connected by a gear or the like. In that case, the first moving mechanism 60 is provided with a motor for driving the gear, and the driving of the motor and the rotation of the movable rail 62 are controlled by the controller 90 .

- Further, the movable rail 62 may be installed so as to rotate horizontally with the front end portion of the fixed rail 61 as a rotation axis. In that case, the rear end portion of the movable rail 62 and the front end portion of the fixed rail 61 are connected by a vertical shaft or the like, and when the movable rail 62 is accommodated in the loading platform 2, there is a gap between the two fixed rails 61. be housed.

- In addition, the movable rail 62 may be movable so as to slide in the front-rear direction with respect to the fixed rail 61 .
・If sufficient slidability of the screen 20 is ensured between the upper guide frame 42 and the lower guide frame 43, neither the upper guide frame 42 nor the lower guide frame 43 needs to be provided with the injection part 45. good too. Also, the injection part 45 may be provided on only one of the upper guide frame 42 and the lower guide frame 43 .

- The injection part 45 may be used only when the screen 20 is stuck in a high-temperature environment or a high-humidity environment, or may always be used before the tension mechanism 46 is used. In other words, the injection unit 45 may be used as appropriate by the operation unit 91 after a visual inspection or the like in a high-temperature environment or a high-humidity environment. They may be controlled by controller 90 to be used in conjunction.

- Only one of the upper guide frame 42 and the lower guide frame 43 may be provided with the low-friction layer 44 . Also, the low friction layer 44 may not be provided on either the upper guide frame 42 or the lower guide frame 43 .

- A low-friction layer 44 may be provided on the entire surface of the upper guide frame 42 and the lower guide frame 43 .
- In the upper guide section and the lower guide section, the upper guide frame 42 and the lower guide frame 43 may be rotating rollers, respectively.

A configuration may be adopted in which the upper guide frame 42 is located on the far side of the loading platform 2 relative to the lower guide frame 43 . In other words, in the projected area 23, the lower side may be positioned in front of the audience seat 4 side, and the upper side may be positioned in the rear side of the cargo bed 2 side. In this case, in the support frame 41, the vertical frame 41b is positioned at the rear end of the front and rear frame 41a, and the inclined frame 41c connects the upper end of the vertical frame 41b and the front end of the front and rear frame 41a. The upper mounting frame 41d is rotatably supported at the upper end of the vertical frame 41b, the upper guide frame 42 is bridged over the front end of the upper mounting frame 41d, and the lower guide frame 43 is the front end of the front and rear frame 41a. Located in Moreover, the display body 30 is fixed above the screen 20 so that the display surface 31 faces downward so that the display body 30 can move up and down. At this time, the playback position is above the standby position of the display 30 .

Of the lower guide frame 43 and the lower drive section 48b of the tension mechanism 46, the lower mounting frame 41e may be configured such that the lower guide frame 43 is not provided and the lower drive section 48b is provided. Alternatively, the lower attachment frame 41e may be fixed to the inclined frame 41c in a state of being unfolded behind the support structure 40 without providing a rotating mechanism. When only the tension mechanism 46 is supported in a foldable manner or when no rotation mechanism is provided, the length of the front and rear frames 41a can be shortened so that the depth in the front-rear direction of the support structure 40 can be accommodated in the cargo bed 2. should be large enough.

- The tension mechanism 46 may be configured to include only one of the upper driving portion 47b and the lower driving portion 48b as long as the tension is transmitted to the entire screen 20 . For example, when the size of the screen 20 is small, both ends of the screen 20 are held by the upper screen holding portion 47a and the lower screen holding portion 48a, respectively. It is good also as a structure which only pulls by the upper side drive part 47b. In particular, in the case of omitting the driving portion located on the back side with respect to the loading platform 2, the depth of the support structure 40 in the front-rear direction can be reduced.

- The tension mechanism 46 may be provided with neither the upper driving portion 47b nor the lower driving portion 48b. That is, the screen 20 may be fixed in a stretched state.
- The image|video projected on the screen 20 by projection apparatuses, such as a projector, may be projected on the display body 30. FIG. That is, the display 30 may be, for example, a screen, an image may be projected onto the display surface 31 by a projector or the like, and the image projected onto the display surface 31 may be projected onto the screen 20 .

Reference Signs List 1 Truck 2 Bed 2e Space 10 Image display device 20 Screen 30 Display body 40 Support structure 42 Upper guide frame 43 Lower guide frame 46 Tension mechanism 60 First moving mechanism 62 Movable Rail 70...Second moving mechanism

Claims (7)

A vehicle bodywork,
a film-like screen having half-mirror performance;
a display for displaying an image projected on the screen;
a support structure that holds the screen in an inclined state in the front-rear direction of the screen;
a first moving mechanism for moving the support structure in the front-rear direction;
A second moving mechanism for moving the display body in the vertical direction,
The first moving mechanism moves the support structure from the storage position within the cargo bed to the outer position outside the cargo bed, and then the second moving mechanism moves the display body from the standby position to the reproduction position. ,
An image display device, wherein a virtual image of the image displayed on the display is generated in a space closer to the cargo bed than the screen. The support structure comprises:
an upper guide and a lower guide with which the screen is engaged;
A tension mechanism that applies tension to the screen,
In the screen, a projection area on which the image is projected is between the upper guide part and the lower guide part,
The tension mechanism is an upper screen holding part that holds an upper end of the screen, the upper screen holding part being positioned rearward with respect to the upper guide part;
a lower screen holding portion that holds a lower end portion of the screen, the lower screen holding portion being positioned behind the lower guide portion;
an upper drive for pulling the upper screen holder and a lower drive for pulling the lower screen holder so as to apply tension to the screen;
2. The projection area of claim 1, wherein the upper drive pulls the upper screen holder rearward and the lower drive pulls the lower screen holder rearward, thereby applying tension to the projection area. video display device. a mounting frame rotatable in the front-rear direction is provided at a position on the back side of the loading platform in the support structure;
The mounting frame is mounted with the driving portion positioned on the back side of the loading platform, out of the upper driving portion and the lower driving portion,
The mounting frame is pivoted so as to be folded forward of the support structure when the support structure is positioned at the retracted position, and when the support structure is positioned at the outer position. 3. The image display device according to claim 2, wherein the display device is rotated so as to be deployed rearwardly of the support structure. 4. The image display device according to claim 2, wherein at least one of the upper guide portion and the lower guide portion has a low-friction layer at least on a contact portion with the screen. 5. The image according to any one of claims 2 to 4, wherein at least one of the upper guide part and the lower guide part comprises a jetting part for jetting air against the engaged screen. display device. The first moving mechanism includes a fixed rail installed on the loading platform, and a movable rail continuous with the fixed rail and extending out of the loading platform,
A rear end portion of the movable rail is rotatably connected to a front end portion of the fixed rail,
The movable rail stands up against the fixed rail at a position of the front end of the loading platform when the support structure is located at the storage position, and the support structure moves from the storage position to the storage position. 6. The image display device according to any one of claims 1 to 5, wherein the image display device is laid down so as to be continuous with respect to the fixed rail before being moved to the outer position. A vehicle comprising the image display device according to any one of claims 1 to 6.