JP2007079271A - Display screen device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To displace a large screen from a plane state to a curved surface state. <P>SOLUTION: The display screen device 10 is equipped with: a plurality of frame bodies 11 juxtaposed in a vertical direction to a floor surface; a coupling means 12 attached between the adjacent frame bodies 11 and 11 on the respective front 11a sides of the plurality of frame bodies 11 and coupling the respective frame bodies 11 to be freely bent in a horizontal direction; a moving means 16 moving the plurality of frame bodies 11 along the floor surface in such a state that the plurality of frame bodies 11 are coupled through the coupling means 12; and a screen 22 supported on the respective front 11a sides of the plurality of frame bodies 11. In the device 10, the cross-sectional shape of the screen 22 takes linear form when the plurality of frame bodies 11 are arranged nearly in a line in the horizontal direction and, on the other hand, the cross-sectional shape of the screen 22 is displaced to be curved when the plurality of frame bodies 11 are moved by the moving means 16 and bent in the horizontal direction through the coupling means 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention makes it possible to displace the cross-sectional shape of a screen from a linear form to a curved form when a screen for projecting and displaying an optical image is traversed in a horizontal direction perpendicular to the vertical direction. The present invention relates to a configured display screen device.

The screen for projecting and displaying an optical image has various structural forms, but when this type of screen is traversed in a horizontal direction perpendicular to the vertical direction in which gravity acts, the cross section of the screen There is a display screen device that is configured to be displaceable from a linear shape to a curved shape (see, for example, Patent Document 1).
JP-A-5-297466

FIG. 9 is a front view showing a conventional display screen device,
10A and 10B show a cross-sectional shape of the screen when the conventional display screen device is crossed in a horizontal direction perpendicular to the vertical direction, and FIG. 10B shows a cross-sectional shape of the screen. It is the figure which showed the curvilinear form.

  The conventional display screen device 100 shown in FIG. 9 is disclosed in the above-mentioned Patent Document 1 (Japanese Patent Laid-Open No. 5-297466), and will be briefly described here with reference to Patent Document 1.

  As shown in FIG. 9, in the conventional display screen device 100, the shape memory alloy 102 storing the shape of the quadratic curved surface on the four sides and the diagonal line of the screen 101, and the shape memory alloy 102 are heated. And a heater wire 103 to be deformed.

  When the screen 101 of the conventional display screen device 100 is traversed in the horizontal direction perpendicular to the vertical direction, the shape memory alloy 102 is normally used (at room temperature) as shown in FIG. When heat is not applied to the screen 101, the cross-sectional shape of the screen 101 takes a linear form. In other words, when the screen 101 in this state is viewed from the front, it becomes a flat form. When the screen 101 is planar, the optical image projected in the projection direction is enlarged and displayed on the planar screen 101.

  On the other hand, as shown in FIG. 10B, when the heater wire 103 is energized and heat is applied to the shape memory alloy 102, the shape memory alloy 102 that stores the shape of the quadratic curved surface stores the screen 10 with the shape memory alloy 102. In other words, the screen 101 in this state has a curved shape when viewed from the front. Thereafter, the optical image projected in the projection direction is enlarged and displayed on the curved screen 101.

  Here, in general, when an optical image enlarged on the screen is viewed, if the angle of view exceeds 100 ° with respect to the horizontal direction, not only an effective visual field of about 30 ° but also a guidance visual field is included, so Is known to be easily obtained.

  On the other hand, when a known flat screen is used in order to obtain an angle of view that exceeds 100 ° in the horizontal direction, the horizontal width of the flat screen increases, resulting in an increase in the installation location of the flat screen.

  Therefore, when a well-known concave curved screen is arranged so as to surround the observer, and the optical image is enlarged and displayed on the concave curved screen, the horizontal width of the concave curved screen is narrower than that of the known flat screen. The problem of increased location can be solved.

  However, flat screens may be used in applications where a sense of immersion is not required, and when the place where the screen is installed is used for multiple purposes in applications where the screen is not used, the well-known concave curved screen takes up space. Therefore, the conventional display screen device 100 can be applied in consideration of both cases.

  By the way, in the above-described conventional display screen device 100, the shape of the screen 101 is provided with the shape memory alloy 102 and the heater wire 103 so that the cross-sectional shape of the screen can be displaced from a linear shape to a curved shape. Although configured, there is a demand for larger screens for enlarging and displaying optical images with high image quality and high sound quality by the projection display system.

  At this time, since the space for installing the screen is relatively small when used for home use, the conventional display screen device 100 can be applied as it is when the screen is displaced between a flat shape and a curved shape. In this case, the size of the screen is increased to 3 m or more in the vertical direction (height direction) and 8 m or more in the horizontal direction (lateral direction). It is technically very difficult to attach a shape memory alloy or a heater wire to the back surface of a large screen, and it is also difficult in terms of practicality.

  Therefore, a display screen device having a structure in which a large screen can be displaced from a flat shape to a curved shape without attaching a shape memory alloy or a heater wire to the back surface of the screen is desired.

The present invention has been made in view of the above problems, and the invention according to claim 1 is characterized in that when a screen for projecting and displaying an optical image is traversed in a horizontal direction perpendicular to the vertical direction, In the display screen device configured so that the cross-sectional shape of the screen can be displaced from a linear form to a curved form,
A plurality of frames arranged side by side in a vertical direction with respect to the floor surface;
A connecting means that is attached between adjacent frame bodies on each front side that is the projection side among the plurality of frame bodies, and that connects each frame body so that it can be bent in a horizontal direction,
Moving means for moving the plurality of frame bodies along the floor surface in a state where the plurality of frame bodies are coupled via the coupling means;
Braking means for stopping movement of the plurality of frame bodies to the floor surface;
The screen having a periphery supported on each front side of the plurality of frame bodies,
When the plurality of frame bodies are aligned so as to be aligned in a substantially straight line in the horizontal direction, the cross-sectional shape of the screen takes a linear form, while the plurality of frame bodies are moved by the moving means. Then, when each frame body is bent in the horizontal direction via the connecting means, the cross-sectional shape of the screen is displaced in a curved shape.

Further, the invention according to claim 2 is the display screen device according to claim 1, wherein each of the pair of upper and lower screen support members facing each other from the upper and lower ends of the plurality of frame bodies and extending toward the projection side, Left and right extending from the left end frame body and the right end frame body to the projection side facing each other while supporting the upper and lower ends of the screen by stretching elastically between the upper and lower ends of the screen The display screen device is characterized in that the left and right ends of the screen are supported by being stretched between a pair of screen support members and the left and right ends of the screen.

The invention according to claim 3 is the display screen device according to claim 2,
A decorative plate for covering the upper and lower ends of the screen is attached to the upper and lower ends of each frame body, and a decorative plate for covering the left and right ends of the screen is attached to the left end frame. The display screen device is attached to the body and the rightmost frame body.

The invention according to claim 4 is the display screen device according to any one of claims 1 to 3,
The display screen device is characterized in that a flexible sheet-like cushioning material is attached along each front surface of the plurality of frame bodies, and the screen is supported in front of the cushioning material.

The invention according to claim 5 is the display screen device according to any one of claims 1 to 4,
The rear surface side that regulates the width of the rear surface of each of the plurality of frame bodies when the plurality of frame bodies are moved by the moving means and each frame body is bent in the horizontal direction via the connecting means. The display screen device is characterized in that an expansion width regulating means is attached to each of the rear surfaces.

Furthermore, the invention according to claim 6 is the display screen device according to any one of claims 1 to 5,
When the odd number of the frame bodies are installed, at least a central frame body among the odd number of frame bodies is fixed to a fixing portion.

  According to the display screen device of claim 1, when a screen for projecting and displaying an optical image is traversed in a horizontal direction perpendicular to the vertical direction, the cross-sectional shape of the screen is changed from a linear form to a curved line. The cross-sectional shape of the screen supported on each front side of the plurality of frame bodies when the plurality of frame bodies are aligned so as to be aligned in a substantially straight line in the horizontal direction. Since the screen has a linear form, when the plurality of frame bodies are moved by the moving means and each frame body is bent in the horizontal direction via the connecting means, the cross-sectional shape of the screen is displaced in a curved line. As described in the above problem, since it is not necessary to attach a shape memory alloy or a heater wire, which is technically very difficult for a large screen, it is possible to cope with an increase in the size of the screen.

  According to the display screen device of the second aspect, the periphery of the screen is stretched with elasticity using, for example, a rubber string or a tension spring, and the screen is supported on each front side of the plurality of frame bodies. Therefore, an appropriate tension can be applied in the vertical and horizontal directions of the screen regardless of the movement of the plurality of frame bodies, so that the screen does not sag even during the movement of the plurality of frame bodies, and The screen does not sag even in a projection state in which a plurality of frame bodies are stopped.

  According to the display screen device of claim 3, the decorative plate for covering the support of the upper and lower ends of the screen is attached to the upper and lower ends of each frame body and the support of the left and right ends of the screen is covered. Since the decorative board for concealing is attached to the left end frame body and the right end frame body, the appearance of the display screen device can be kept good.

  Further, according to the display screen device of claim 4, since a flexible sheet-like cushioning material is attached along each front surface of the plurality of frame bodies, and the screen is supported in front of the cushioning material, It is possible to prevent damage to the back surface of the screen during movement of a plurality of frame bodies. Furthermore, when a white cloth is used for the screen, for example, if a sheet-like black cushioning material using a flexible black rubber sheet or the like is attached along each front surface of a plurality of frame bodies, the white screen is transmitted. Absorbs the transmitted light and improves the contrast ratio for the optical image projected on the screen, and prevents the back of the screen from touching multiple frames, preventing damage to the back of the screen can do.

  According to the display screen device of claim 5, when the plurality of frame bodies are moved by the moving means and the respective frame bodies are bent in the horizontal direction via the connecting means, the respective rear surface sides of the plurality of frame bodies. Since the rear side widening width regulating means for regulating the widening width of each frame is attached to each rear side, a plurality of frame bodies can be bent in the horizontal direction at substantially equal intervals, and each front side of the plurality of frame bodies It is possible to maintain the curvature of the curved surface of the screen supported at a preset value. At this time, since the length of the rear side widening restricting means can be adjusted at the installation site, it is possible to adjust the curvature of the curved surface of the screen supported on each front side of the plurality of frame bodies.

  Furthermore, according to the display screen device of claim 6, when an odd number of frame bodies are installed, at least the center frame body among the odd number of frame bodies is fixed to a fixing portion such as a wall surface, a floor surface, or a column. In addition to preventing the multiple frame bodies from falling, the multiple frame bodies arranged on the left side of the central frame body and the multiple frame bodies arranged on the right side are symmetrically directed in the front-rear direction. Can be easily moved manually.

  Hereinafter, an embodiment of a display screen device according to the present invention will be described in detail with reference to FIGS.

FIG. 1 is a perspective view for explaining a display screen device according to the present invention, and is a perspective view showing a state in which a screen provided in the display screen device is a plane.
2A, 2B, and 2C are a top view, a front view, and a side view, respectively, showing a display screen device according to the present invention.
FIG. 3 is a perspective view for explaining a projection display system for projecting each optical image from a plurality of projections in a state in which a screen provided in the display screen device according to the present invention is displaced in a curved shape.
FIG. 4 is a partially enlarged perspective view of the display screen device according to the present invention.
FIG. 5 is an enlarged side sectional view of the display screen device according to the present invention,
6 (a) and 6 (b) are a rear view and a bottom view when the rear surfaces of a plurality of rack bodies provided in the display screen device according to the present invention are arranged so as to be aligned substantially in a straight line, (C) is a bottom view when the rear surface side of the plurality of rack bodies is expanded and bent in the horizontal direction;
FIG. 7 is a diagram schematically showing a first usage pattern of a screen provided in the display screen device according to the present invention.
FIG. 8 is a diagram schematically showing a second usage pattern of the screen provided in the display screen device according to the present invention.

  As shown in FIGS. 1 and 2 (a) to 2 (c), in the display screen device 10 according to the present invention, a plurality of frame bodies 11 framed in a rectangular shape using an angle steel material or the like are provided on the floor surface. Are arranged side by side in the vertical direction, which is the direction in which gravity acts.

  At this time, each frame body 11 is set to a square shape with a width dimension and a depth dimension of, for example, 300 mm, and a height dimension is set to a high value of, for example, 3500 mm or more. The upper frame body 11A and the lower frame body 11B are overlapped in the height direction and fixed with bolts or the like at the installation site in consideration of transportation to the elevator at the installation site. The single frame body 11 is assembled in the vertical direction with respect to the floor surface. Furthermore, the total height dimension of the single frame body 11 and the casters 16 that move the frame body 11 along the floor surface is set to 3800 mm at the maximum, for example.

  In this embodiment, each frame body 11 is divided into upper and lower two stages. However, the present invention is not limited to this, and there is a case where it is not necessary to divide the frame body vertically. When the height dimension is set higher, it may be divided into three or more layers and stacked.

  Further, among the plurality of frame bodies 11, adjacent frame bodies 11, 11 are connected to each other so as to be bent in the horizontal direction by hinges 12, 12 serving as connecting means attached to the top and bottom of each front surface 11a, 11a. On the other hand, the rear surfaces 11b and 11b are separated.

  When the plurality of frame bodies 11 are bent in the horizontal direction by the hinges 12 and 12 attached to the respective frame bodies 11, the cross-sectional shape on the front surface 11a side of the plurality of frame bodies 11 becomes concave. The rear surface 11b side is expanded in the horizontal direction.

  Further, when the plurality of frame bodies 11 are connected by the hinges 12, a gap corresponding to the axis for the hinge 12 to rotate is formed between the adjacent frame bodies 11 and 11, so this gap is maintained. For this reason, rubber spacers 13 (13... Not shown) are attached to the upper and lower sides of either side surface of the adjacent frame bodies 11 and 11.

  Accordingly, when the plurality of frame bodies 11 are arranged so as to be aligned substantially in a straight line in the horizontal direction, the plurality of frame bodies 11 are arranged at substantially equal intervals with a slight gap between the adjacent frame bodies 11 and 11. It will be installed side by side.

  The plurality of frame bodies 11 are provided with moving means for moving each frame body 11 in the front-rear direction along the floor surface on each bottom surface 11c facing the floor surface. As a specific example, two casters 16 (16... Not shown) are attached to the front and rear or the left and right of each bottom surface.

  Of the plurality of frame bodies 11, a left side surface 11e of the left end frame body 11 and a right side surface 11f of the right end frame body 11 are provided with braking means (brake) 17 for braking movement on the floor surface. 17 is provided so as to be movable toward and away from the floor surface. If these left and right braking means 17 and 17 are pressed against the floor surface, the floor by casters 16 respectively attached to the bottom surfaces 11c of the plurality of frame bodies 11 is provided. The movement to the surface can be stopped.

  And the deformation | transformation of the large sized screen supported by each front surface 11a side of the multiple frame bodies 11 can be prevented by stopping the multiple frame bodies 11 with respect to the floor surface by the left and right braking means 17, 17. The above-described braking means 17 is shown enlarged in FIG. 4 used later.

  At this time, if a caster with brake (not shown) having the same height as the caster 16 is attached to the bottom surface 11c of the left end frame body 11 and the bottom surface 11c of the right end frame body 11 so as to be able to perform a braking operation, the left and right braking means 17, 17 can be omitted.

  The plurality of frame bodies 11 are preferably arranged in an odd number (N + 1) in parallel, and in this case, they can be arranged symmetrically with the central frame body 11 interposed therebetween. In this embodiment, a total of 27 frame bodies 11 are connected by hinges 12, and the rear surface 11b side of the central frame body 11 located 14th from the left end or the right end is a wall surface fixing member serving as a fixing means. 14 and bolts 15 are firmly fixed to the wall surface serving as a fixing portion.

  Accordingly, the plurality of frame bodies 11 can be prevented from overturning, and the plurality of frame bodies 11 arranged on the left side with the central frame body 11 interposed therebetween and the plurality of frame bodies 11 arranged on the right side It can be easily moved manually in the longitudinal direction symmetrically. In this embodiment, the wall surface is used as a fixing portion for fixing the central frame body 11, but the present invention is not limited to this, and it is also possible to fix it to a floor surface or a pillar.

  Further, among the plurality of frame bodies 11, a pair of left and right wall fixing U-shaped brackets 18, (18..., Are shown on the left side surface 11 e of the leftmost frame body 11 and the right side surface 11 f of the rightmost frame body 11. (Not shown) is attached. On the other hand, on the left and right sides of the wall surface, a pair of left and right lever members 19, 19 (not shown) corresponding to the pair of left and right wall-fixing U-shaped brackets 18 and 18 are shafts 20, 20 (Not shown) is attached so as to be pivotable. These wall surface fixing members are shown enlarged in FIG. 4 to be used later.

  Then, when the plurality of frame bodies 11 are arranged so as to be aligned substantially in a straight line in the horizontal direction, the tip of each lever member 19 is caused to enter the U-shaped bracket 18 for fixing each wall as necessary. The left end frame body 11 and the right end frame body 11 can be fixed to the wall surface.

  Further, on the front surface 11a side of the plurality of frame bodies 11, the periphery of the large screen 22 is supported with a flexible sheet-like black cushioning material 21 (FIGS. 4 and 5) interposed therebetween as will be described later. The support structure for supporting the large screen 22 on the front surface 11a side of the plurality of frame bodies 11 will be described in detail later.

  The above-mentioned large screen 22 has a maximum horizontal screen size set to 8300 mm, for example, and a maximum vertical screen size (vertical direction) set to 3200 mm, for example, and light is applied to a rectangular white cloth. Uses a white coating that diffusely reflects.

  Also, decorative plates 32 and 32 for covering the upper and lower ends of the screen 22 are attached to the upper and lower sides of the front surface 11a of the plurality of frame bodies 11 for each frame body 11, and further, the leftmost frame body 11 The decorative plates 35 and 35 for covering the left and right ends of the screen 22 are attached to the front left and the right front of the frame body 11 at the right end. The attachment structure of the decorative plates 32 and 35 will be described later. .

  In addition, speakers 41, 42, and 43 are disposed in front of the screen 22 on the left side of the front surface of the left frame body 11, below the front surface of the central frame body 11, and on the right front surface of the right frame body 11. It is attached to protrude.

  In the state shown in FIG. 1, the front surfaces 11a and the rear surfaces 11b of the 27 frame bodies 11 are arranged so as to be substantially aligned in the horizontal direction. At this time, projection is performed in front of the front surfaces 11a. When the large screen 22 attached to the side is traversed in the horizontal direction perpendicular to the vertical direction, the cross-sectional shape of the large screen 22 is linear. In other words, when the screen 22 in this state is viewed from the front, the screen 22 is flat in parallel with the front surfaces 11a of the 27 frame bodies 11, and is projected from a projector (not shown) in this state. An optical image can be enlarged and displayed.

  Next, in FIG. 3, for convenience of illustration, the number of the frame bodies 11 is less than 27, but only the rear surface 11 b side of the central frame body 11 among the plurality of frame bodies 11 is fixed to the wall surface. After firmly fixing to the wall surface with the member 14 and the bolt 15, the left end frame body 11 is moved to the front side through the casters 16 attached to each frame body 11 while manually pushing the frame body 11 away from the wall surface, Further, the caster attached to each frame body 11 while bending the front surface 11a side of each frame body 11 in a concave shape in the horizontal direction via each hinge 12 and similarly pushing the right end frame body 11 away from the wall surface. 16 is moved forward through 16 and the front surface 11a side of each frame body 11 is bent in a concave shape in the horizontal direction via each hinge 12, When a large screen 22 attached toward the projection side in front of each front surface 11a of the frame body 11 is traversed in a horizontal direction perpendicular to the vertical direction, the cross-sectional shape of the large screen 22 is displaced in a curved surface shape. To do. In other words, when the screen 22 in this state is viewed from the front, the screen 22 has a concave curved surface along each front surface 11a of the 27 frame bodies 11 bent into a concave shape, and an observer (not shown) The optical image projected from a projector (not shown) can be displayed in an enlarged manner.

  Here, in the projection display system 40 employing the display screen device 10 according to the present invention, the left speaker 41 attached to the front left side of the leftmost frame body 11 and the central frame body 11 for audio output. The center speaker 42 attached below the front surface, the right speaker 43 attached to the right front surface of the frame body 11 at the right end, and two rear speakers 44 and 45 installed behind the observer (not shown) have five channels. It is configured.

  On the other hand, for video output, three projectors each including a left projector 46, a central projector 47, and a right projector 46 are mounted on a stand 49 or suspended from a ceiling (not shown). It is arranged toward 22.

  At this time, the optical images projected from the three projectors 46 to 48 are subjected to blending processing (averaging processing) to luminance signals so that the partially overlapping image portions have the same luminance as the surrounding luminance. Measures are taken so that partially overlapping image parts are not noticeable.

  Since the large screen 22 displaced in a curved surface surrounds an observer (not shown), the optical image projected on the large screen 22 can be satisfactorily viewed without losing a sense of immersion.

  Since the large screen 22 displaced in a curved surface takes a large floor area, if the large screen 22 is returned to the flat shape shown in FIG. 1 after use, the installation place can be used for multiple purposes. Obviously.

  Next, a support structure for supporting the large screen 22 on the front surface 11a side of the plurality of frame bodies 11 will be described with reference to FIGS.

  As shown in FIGS. 4 and 5, hinges 12, 12 are attached to the upper and lower sides of the front surfaces 11 a of the adjacent frame bodies 11, 11 so that the adjacent frame bodies 11, 11 are connected in a horizontally foldable manner. A sheet-like black cushioning material 21 using a flexible black rubber sheet or the like is attached along each front surface 11 a of the plurality of frame bodies 11. At this time, one black cushioning material 21 is attached to one frame body 11, and the height direction of one black cushioning material 21 is substantially equal to the height of each frame body 11, but the width direction is a hinge. Since it is attached so as to overlap with the adjacent black cushioning material 21 at the portion 12, the black cushioning material 21 does not loosen when the screen 22 is curved.

  The sheet-like black cushioning material 21 described above absorbs transmitted light that has passed through the white screen 22 to improve the contrast ratio with respect to the optical image projected on the screen 22, and a plurality of back surfaces of the screen 22 are provided. Since the frame body 11 is not contacted, damage to the back surface of the screen 22 can be prevented.

  At this time, the sheet-like black cushioning material 21 needs to have flexibility in order to move integrally with the movement of the plurality of frame bodies 11, and absorbs transmitted light transmitted through the white screen 22. Therefore, a black rubber sheet is ideal. However, a black felt or a black resin sheet can be applied as long as it has the functions described above.

  Even when a white screen is not used for a large screen, if a flexible sheet-like cushioning material 21 is attached along each front surface 11a of the plurality of frame bodies 11, the plurality of frame bodies 11 are being moved. Damage to the back of the screen can be prevented.

  Next, the screen 22 attached to the front of the sheet-like black cushioning material 21 with a space therebetween has a screen reinforcing member 23 circulated in a frame shape with a predetermined width along the upper and lower ends and the left and right ends. A large number of round holes 23 a are formed along the reinforcing member 23.

  In addition, a pair of upper and lower screen support L-shaped brackets 24 and 25 are attached to each bottom surface 11c and each top surface 11d of the plurality of frame bodies 11 so as to face each other. At this time, the pair of upper and lower L-shaped brackets 24 and 25 for supporting the screen has L-shaped bent pieces 24a and 25a bent in an L-shape on the projection side in front of the front surfaces 11a of the plurality of frame bodies 11. A plurality of round holes 24b and 25b are formed through the L-shaped bent pieces 24a and 25a.

The upper and lower ends of the screen 22 are supported for each frame body 11. Specifically, a pair of upper and lower screen support L-shaped brackets 24 attached to the bottom surface 11 c and the top surface 11 d of each frame body 11. , 25 between the plurality of round holes 24b, 25b drilled in the L-shaped bent pieces 24a, 25a and the plurality of round holes 23a drilled above and below the screen reinforcing member 23 circulated around the outer periphery of the screen 22. The upper and lower ends of the screen 22 are supported while the upper and lower ends of the screen 22 are stretched by connecting them in a triangular wave shape as shown in the figure using elastic elastically displaceable rubber strings 26.

  As described above, since the upper and lower ends of the screen 22 are stretched by the rubber cord 26 for each frame body 11, an appropriate tension is applied to the vertical direction of the screen 22 regardless of the movement of the plurality of frame bodies 11. Therefore, the screen 22 does not sag even while the plurality of frame bodies 11 are moving, and the screen 22 does not sag even in a projection state in which the plurality of frame bodies 11 are stopped.

  Further, among the plurality of frame bodies 11, a left side frame 11 e of the leftmost frame body 11 and a right side surface 11 f (FIG. 1) of the rightmost frame body 11 have a pair of left and right screen support L-shaped brackets 27, (28 ... not shown) are attached to face each other. At this time, the pair of left and right screen-supporting L-shaped brackets 27 and (28) has L-shaped bent pieces 27a (28a, not shown) bent in an L-shape, which are the left and right ends of the frame bodies 11 and 11, respectively. The L-shaped bent pieces 24a and 25a of the pair of upper and lower screen supporting L-shaped brackets 24 and 25 are in front of each front surface 11a and extend toward the projection side in the same height, and are L-shaped. A plurality of round holes 27b (28b... Not shown) are formed through the bent pieces 27a and (28a).

  The left and right ends of the screen 22 are supported only by the left end frame body 11 and the right end frame body 11. Specifically, the left side surface 11e of the left end frame body 11 and the right side surface of the right end frame body 11 are described. A pair of left and right screen support L-shaped brackets 27 attached to 11f (FIG. 1), a plurality of round holes 27b (28b) formed in L-shaped bent pieces 27a, (28a) of (28), and a screen; An elastically displaceable rubber cord 29 is used between a plurality of round holes 23a drilled on the left and right sides of the screen reinforcing member 23 that circulates around the outer periphery of the screen 22. The left and right ends of the screen 22 are supported while stretching the ends.

  As described above, since the left and right ends of the screen 22 are stretched only by the left end frame body 11 and the right end frame body 11 with the rubber cord 29, the left and right ends of the screen 22 are not changed regardless of the movement of the plurality of frame bodies 11. Since an appropriate tension can be applied to the frame body 11, the screen 22 does not sag even when the plurality of frame bodies 11 are moving, and the screen 22 sag even in a projection state where the plurality of frame bodies 11 are stopped. There is nothing.

  In this embodiment, the screen 22 is supported while being stretched on the front surface 11a side of the plurality of frame bodies 11 using elastically displaceable rubber strings 26, 29. However, the present invention is not limited to this. It is also possible to suspend the periphery of the screen 22 with elasticity by using a plurality of elastically displaceable tension springs (not shown) instead of the elastically displaceable rubber strings 26 and 29. Further, although it is possible to suspend the periphery of the screen 22 using a simple string (not shown) that is not elastically displaced instead of the elastically displaceable rubber strings 26, 29, in this case Therefore, it is necessary to adjust the tension applied to the screen 22.

  In addition, a pair of upper and lower decorative plate support L-shaped brackets 30, which are stacked on the upper and lower screen support L-shaped brackets 24 and 25, on each bottom surface 11 c and each top surface 11 d of the plurality of frame bodies 11. 31 are attached to face each other. At this time, the L-shaped brackets 30 and 31 for supporting the upper and lower decorative plates support the L-shaped bent pieces 30a and 31a bent in an L-shape, and the L-shaped brackets 24 and 25 for the upper and lower screen-supporting L-shaped brackets 24 and 25. It extends toward the projection side in front of the bent pieces 24a and 25a.

  Further, the L-shaped bent pieces 30a and 31a of the pair of upper and lower decorative plate support L-shaped brackets 30 and 31 are the same as the L-shaped bent pieces 24a and 25a of the upper and lower pair of L-shaped brackets 24 and 25 for supporting the screen. The screen reinforcement 22 is formed so as to cover the screen reinforcing material 23 that is wound around the upper and lower ends of the screen 22.

  The L-shaped bent pieces 30a and 31a of the pair of upper and lower decorative plate supporting L-shaped brackets 30 and 31 have decorative plates 32 and 32 made of black felt that are flexible and do not reflect light. Each frame 11 is attached using an adhesive. At this time, the width of the decorative plate 32 is set slightly longer than the total width including the width of 300 mm of each frame 11 and the gap formed between the adjacent frame bodies 11, 11. Although the decorative plates 32 and 32 partially overlap each other, there is no gap between the decorative plates 32 and 32 adjacent to each other even when the plurality of frame bodies 11 are moving, so that a good appearance can be maintained with respect to the upper and lower ends. it can.

  Further, among the plurality of frame bodies 11, a left side frame 11 e of the leftmost frame body 11 and a right side surface 11 f (FIG. 1) of the rightmost frame body 11 have a pair of left and right screen support L-shaped brackets 27, A pair of left and right decorative plate support L-shaped brackets 33 (34... Not shown) are attached to face each other so as to overlap each other (28... Not shown). At this time, the pair of left and right decorative plate support L-shaped brackets 33 and (34) is formed of an L-shaped bent piece 33a (34a, not shown) bent into an L shape and a pair of left and right screen support L-shaped. The height of the L-shaped bent pieces 30a and 31a of the pair of upper and lower decorative plate supporting L-shaped brackets 30 and 31 in front of the L-shaped bent pieces 27a and (28a) of the shaped brackets 27 and (28) is increased. Together, it extends toward the projection side.

  Further, the L-shaped bent pieces 33a and (34a) of the pair of left and right decorative plate supporting L-shaped brackets 33 and (34) are L-shaped of the pair of left and right screen supporting L-shaped brackets 27 and (28). The bent pieces 27 a, (28 a) and the screen reinforcing material 23 circulated around the left and right ends of the screen 22 are formed so as to cover the bent pieces 27 a, (28 a).

  The L-shaped bent pieces 33a and (34a) of the L-shaped brackets 33 and (34) for supporting the left and right decorative plates use a black felt plate that is flexible and does not reflect light. Since 35 and (35) are stuck using an adhesive, a favorable external appearance can be maintained with respect to the left and right end sides.

  Next, the rear surface 11b side of the plurality of frame bodies 11 will be described with reference to FIGS.

  As shown in FIG. 6 (a), four pins 36 are fixed to each rear surface 11b of the plurality of frame bodies 11 separately in the vertical and horizontal directions. Then, in a state where the adjacent frame bodies 11 and 11 are connected to each other by the upper and lower hinges 12 and 12 so as to be bent in the horizontal direction, between the left and right upper pins 36 and 36 in the adjacent frame bodies 11 and 11. A chain 37 capable of adjusting the length is attached, and a chain 37 capable of adjusting the length is also attached between the lower pins 36, 36.

  At this time, the chain 37 spanned between the pins 36, 36 provided on the left and right in the adjacent frame bodies 11, 11 moves the plurality of frame bodies 11 by the casters 16, so that each frame body 11 is connected to the hinge 12. The rear surface side widening width restricting means for restricting the widening width of each of the plurality of frame bodies 11 on the rear surface 11b side when bent in a concave shape in the horizontal direction.

  As shown in FIGS. 6A and 6B, when a plurality of frame bodies 11 are arranged so as to be aligned substantially in a straight line in the horizontal direction, between the adjacent frame bodies 11 and 11, A gap corresponding to the axis of the hinge 12 is formed, and the gap is maintained by rubber spacers 13 and 13 attached to the upper and lower sides of one side surface of the adjacent frame bodies 11 and 11. In this state, the upper and lower chains 37, 37 hang down toward the floor surface with a sufficient margin with respect to the gap.

  On the other hand, as shown in FIG. 6C, a plurality of frame bodies 11 are moved on the floor surface via casters 16 attached to the bottom surfaces 11c, and the front surface 11a side of each frame body 11 is connected to each hinge. Since the rear surface 11b side of the plurality of frame bodies 11 is expanded at the time of being bent in a concave shape via 12 in the horizontal direction, the upper and lower chains 37 and 37 are fully extended, and the expansion width on the rear surface 11b side is restricted. Therefore, the plurality of frame bodies 11 can be bent in the horizontal direction at substantially equal intervals, and the curvature of the curved surface of the screen 22 supported on the front surface 11a side of the plurality of frame bodies 11 is maintained at a preset value. it can.

  At this time, the lengths of the upper and lower chains 37, 37 can be adjusted at the installation site, and the lengths of these upper and lower chains 37, 37 are adjusted to support the front surfaces 11a of the plurality of frame bodies 11. It is possible to adjust the curvature of the curved surface of the screen 22 to a desired value.

  Next, a usage pattern of the display screen device 10 according to the present invention configured as described above will be briefly described with reference to FIGS.

  First, as shown in FIG. 7, the first usage pattern of the display screen device 10 according to the present invention is the arrangement state of the plurality of frame bodies 11, that is, the screen 22 in accordance with the movement of the plurality of frame bodies 11. Are displaced in a planar shape toward the projection direction, an arch shape in which only the left and right ends are concave curved surfaces, or a concave curved surface shape having a predetermined curvature. In this case, the central frame body 11 is firmly fixed to the wall surface as the fixing portion by the wall surface fixing member 14 and the bolt 15 as fixing means, and the screen 22 is displaced in a concave shape toward the projection side in front of the wall surface. Space to be secured is secured.

  In this first mode of use, when the screen 22 is displaced into a concave curved surface, for example, if it is applied to a flight simulator or the like for training the operation of an airplane, it is sensitive to movement that causes the top and bottom to reverse. In addition, even a tense optical image can be viewed with a sense of tension just like the real thing without being distracted.

  Next, as shown in FIG. 8, the second usage pattern of the display screen device 10 according to the present invention is the arrangement state of the plurality of frame bodies 11, that is, the screen according to the movement of the plurality of frame bodies 11. 22 is displaced in a planar shape toward the projection direction, an inverted arch shape in which only the left and right end sides are convex curved surfaces, or a convex curved surface having a predetermined curvature. In this case, the center frame body 11 is firmly fixed to a pillar or the like as a fixing portion by means of a wall fixing member 14 and a bolt 15 as fixing means, and the screen 22 is displaced in a convex shape behind the pillar. Space is reserved.

  In this second usage pattern, when the screen 22 is displaced into a convex curved surface, for example, if applied to an advertisement image or the like that looks at an optical image enlarged and displayed in a convex shape while the observer moves, This can be an interesting projection method.

It is the perspective view for demonstrating the display screen apparatus which concerns on this invention, and is the perspective view which showed the state in which the screen provided in the display screen apparatus is a plane. (A), (b), (c) is the top view, front view, and side view which respectively showed the display screen apparatus based on this invention. It is a perspective view for demonstrating the projection display system which projects each optical image from a some projector in the state which displaced the screen provided in the display screen apparatus which concerns on this invention in the curved surface form. 1 is a partially enlarged perspective view of a display screen device according to the present invention. It is the sectional side view which expanded and displayed the display screen apparatus which concerns on this invention. (A), (b) is a rear view and a bottom view when rear surfaces of a plurality of rack bodies provided in the display screen device according to the present invention are arranged so as to be aligned in a substantially straight line in the horizontal direction. ) Is a bottom view when the rear surface side of the plurality of rack bodies is expanded and bent in the horizontal direction. It is the figure typically shown in order to demonstrate the 1st usage pattern of the screen provided in the display screen apparatus which concerns on this invention. It is the figure typically shown in order to demonstrate the 2nd usage pattern of the screen provided in the display screen apparatus which concerns on this invention. It is the front view which showed the conventional display screen apparatus. When a conventional display screen device is traversed in a horizontal direction orthogonal to the vertical direction, (a) shows the screen having a straight cross-sectional shape, and (b) shows the screen having a curved cross-sectional shape. It is the figure which showed the form.

Explanation of symbols

10 ... display screen device,
11 ... Frame body, 11A ... Upper frame body, 11B ... Lower frame body,
11a ... front surface, 11b ... rear surface, 11c ... bottom surface, 11d ... top surface,
11e ... left side, 11f ... right side,
12 ... Connecting means (hinge), 13 ... Rubber spacer,
14 ... fixing means (wall surface fixing member), 15 ... fixing means (bolt),
16 ... Moving means (caster), 17 ... Braking means,
18 ... U-shaped bracket for fixing the wall surface, 19 ... Lever member, 20 ... Shaft,
21 ... a sheet-like black cushioning material, 22 ... a screen,
23 ... screen reinforcing material, 23a ... round hole,
24, 25 ... A pair of upper and lower screen-supporting L-shaped brackets,
24a, 25a ... L-shaped bent pieces, 24b, 25b ... round holes, 26 ... rubber strings,
27, (28) ... a pair of left and right screen support L-shaped brackets,
27a, (28a) ... L-shaped bent piece, 27b, (28b) ... round hole, 29 ... rubber string 30, 31 ... L-shaped bracket for supporting a pair of upper and lower decorative plates,
30a, 31a ... L-shaped bent piece, 32 ... decorative plate,
33, (34) ... L-shaped brackets for supporting a pair of left and right decorative plates,
33a, (34a) ... L-shaped bent piece, 35 ... decorative plate,
36 ... pin, 37 ... rear side widening width restricting means (chain),
40. Projection display system,
41-45 ... Speaker, 46-48 ... Projector, 49 ... Stand.

Claims (6)

When a screen for projecting and displaying an optical image is traversed in a horizontal direction perpendicular to the vertical direction, the cross-sectional shape of the screen is configured to be displaceable from a linear form to a curved form. In the display screen device,
A plurality of frames arranged side by side in a vertical direction with respect to the floor surface;
A connecting means that is attached between adjacent frame bodies on each front side that is the projection side among the plurality of frame bodies, and that connects each frame body so that it can be bent in a horizontal direction,
Moving means for moving the plurality of frame bodies along the floor surface in a state where the plurality of frame bodies are coupled via the coupling means;
Braking means for stopping movement of the plurality of frame bodies to the floor surface;
The screen having a periphery supported on each front side of the plurality of frame bodies,
When the plurality of frame bodies are aligned so as to be aligned in a substantially straight line in the horizontal direction, the cross-sectional shape of the screen takes a linear form, while the plurality of frame bodies are moved by the moving means. Then, when each frame body is bent in the horizontal direction via the connecting means, the cross-sectional shape of the screen is displaced in a curved shape. 2. The display screen device according to claim 1, wherein the upper and lower ends of the plurality of frame bodies oppose each other and extend toward the projection side, and elastic between the upper and lower ends of the screen. A pair of left and right screen support members extending from the left end frame body and the right end frame body to face each other and projecting toward the projection side, and A display screen device characterized by supporting the left and right ends of the screen by stretching between the left and right ends with elasticity. The display screen device according to claim 2,
A decorative plate for covering the upper and lower ends of the screen is attached to the upper and lower ends of each frame body, and a decorative plate for covering the left and right ends of the screen is attached to the left end frame. A display screen device attached to the body and the rightmost frame body. In the display screen device according to any one of claims 1 to 3,
A display screen device, wherein a flexible sheet-like cushioning material is attached along each front surface of the plurality of frame bodies, and the screen is supported in front of the cushioning material. In the display screen device according to any one of claims 1 to 4,
The rear surface side that regulates the width of the rear surface of each of the plurality of frame bodies when the plurality of frame bodies are moved by the moving means and each frame body is bent in the horizontal direction via the connecting means. A display screen device, wherein an expansion width regulating means is attached to each of the rear surfaces. In the display screen device according to any one of claims 1 to 5,
A display screen device characterized in that when an odd number of the frame bodies are installed, at least a central frame body among the odd number of frame bodies is fixed to a fixing portion.

Images