JP3064778B2 - Multi-vision screen device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-vision screen device.

[0002]

2. Description of the Related Art In conventional multivision, images projected from a plurality of projection units are enlarged and projected from the back of one large screen, and a large-screen composite image is displayed on the large screen. ing.

[0003] As the displayed image becomes larger, the screen area inevitably increases, and forming the entire screen with one sheet member imposes restrictions on transportation, productivity, and production equipment. It becomes difficult from the point of view.

[0004] For this reason, a large-screen multi-vision screen, as disclosed in, for example, Japanese Utility Model Laid-Open Publication No. 3-90184, has a plurality of screens for each projection unit, and the adjacent screens are connected to each other. It is generally formed as a combination of a plurality of screens inserted and fixed in the groove of the tool.

Hereinafter, such a large screen is referred to as a combination screen. On the other hand, the screen for each projection unit is simply called a screen.

In such a technique, in order to make the connecting device inconspicuous, the connecting device is formed of a light diffusing material and the light transmission amount thereof is set to an appropriate value.

[0007]

In the above-mentioned conventional multi-vision screen device, the light transmittance of the connector and the light transmittance of the connector are set so that the amount of light transmitted by the connector is substantially the average amount of light at the edge of the adjacent screen. The shape is devised so that the connection tool is not noticeable.

However, no consideration is given to the deformation of the plane of the combination screen due to the humidity and temperature of the installation environment of the combination screen. If the flatness of the combination screen is not maintained properly, the image will be out of focus and the projected image will be blurred and the image quality will be significantly degraded. In particular, if the width of the screen connecting device (holding device) is reduced and the depth of the groove for inserting the screen is reduced so as not to disturb the image, the surface of the combined screen may be deformed due to thermal expansion of the screen, There is a possibility that the screen and the screen connecting device (holding device) may be displaced or detached, and once displaced or detached, reassembly and adjustment require a great deal of trouble.

An object of the present invention is to solve such a problem and to take into account expansion and contraction of the screen due to temperature and humidity.
It is an object of the present invention to provide a multi-vision screen device that eliminates the need for a screen connecting device (holding device), prevents warpage of a combination screen, and can project a clear image.

[0010]

In order to achieve the above object, the present invention relates to a method of joining edges of a plurality of adjacent screens to each other with an adhesive, pressing with a spring, or connecting with metal fittings. Thus, a large screen combination screen is formed, the combination screen is formed of combination sheets having different cross-sectional shapes and plate thicknesses, and a plurality of sheets are stacked with uniform outer shapes. Stretched by its own weight.

2. In addition, the non-image band in the longitudinal direction of the partition plate that separates each screen and blocks light and the band of the bonding surface of each screen overlap each other when viewed from the front of the screen so as to coincide with each other. Is pressed against the adhesive surface with a compression spring.
Or an adhesive surface between the partition plate and the screen having elasticity.
Is fixedly engaged with a linear member, and the partition plate is fixedly engaged and stopped at a position where the partition plate intersects the vertical and horizontal bonding surfaces, and is supported.

3. A bending moment is applied to the end of the combination screen so that the surface of the combination screen becomes concave.

[0013]

[Action]

1. Since the left and right lower edges of the combination screen are stretched by a spring, the flatness is improved, and the occurrence of floating and warpage can be prevented, and the defocus of an image can be prevented.

2. In addition, a compression spring is attached to the adhesive surface of the partition plate.
Pressing with a brush, or a non-image strip of an elastic partition plate
The band on the adhesive surface of the screen is fixedly engaged with the linear member.
Therefore, even if the combined screen expands and contracts due to the surrounding temperature and humidity, the adhesive surface between the partition and the screen is fixedly engaged and does not shift, so that the non-image band of the partition and the adhesive between the screen and the screen are not shifted. The bands overlap when viewed from the front, and the width of the non-image band between the screens can be significantly reduced.

3. If the surface of the combination screen is concave, the combination screen is always bent inward, so that the combination screen does not float or warp and prevents defocusing of an image. Can be.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing an embodiment of a multi-vision screen device according to the present invention, wherein 1 is a combination screen, 2 is a screen frame, 3a to 3f are screens, 4 is a top plate, 5 is a front plate, Reference numeral 6 denotes a side plate, and 7 denotes a gantry.

Referring to FIG. 1, this embodiment comprises a combination screen 1, a screen frame 2 surrounding the combination screen 1 and a housing mounted on a gantry 7. The housing is composed of a top plate 4 and a front plate 5 And a side plate 6. In this housing, three upper and lower projection units (not shown) are housed, and the screens 3a to 3f of the respective projection units are arranged on the same plane in the screen frame 2. These six screens 3a to 3f constitute a combination screen 1. Each projection unit enlarges and projects an image on the screens 3a to 3f.
One big screen is displayed.

FIG. 2 is a front view of the embodiment shown in FIG. 1 excluding the screen frame 2, wherein 8 is a combination lenticular sheet, 9 is a combination Fresnel lens sheet, and 10a to 10a.
c is a lenticular sheet, 11a and 11b are Fresnel lens sheets, 12 is a bonding surface of the lenticular sheet, 13
Is the adhesive surface of the Fresnel lens sheet, 14 is the frame, 1
5 is a roller, 16 is a spring, 17 is a wire, 18
Reference numerals a and 18b denote upper and lower fixing brackets, 19a and 19b denote left and right fixing brackets, and portions corresponding to those in FIG.

In FIG. 1, the combination screen 1 is a combination screen in which a combination lenticular sheet 8 and a combination Fresnel lens sheet 9 are overlapped with the same outer shape. The combination lenticular sheet 8 includes upper and lower screens 3a, 3d.
(FIG. 1) Lenticular sheet 10a assigned to each
As with the lenticular sheet 10b assigned to each of the screens 3b and 3e (FIG. 1),
A lenticular sheet 10c assigned to each of c, 3f (FIG. 1) is aligned on the same plane, and these end faces are bonded as a lenticular sheet bonding surface 12. The combined Fresnel lens sheet 9 has the same Fresnel lens sheet 11a assigned to the upper three screens 3a, 3b, 3c and the same Fresnel lens sheet 11b assigned to the lower three screens 3d, 3e, 3f. The end faces are aligned on a plane, and are bonded to each other as a Fresnel lens sheet bonding surface 13.

The combined lenticular sheet 8 and the combined Fresnel lens sheet 9 have their upper ends at the frame 14.
The upper and lower fixtures 18a are fixed to the upper and lower fixtures 18a.
b is supported so as to be able to expand and contract left and right. The upper and lower fixing brackets 18b are pulled downward at three locations by means of a roller 15, a spring 16, and a wire 17. Therefore, the combination lenticular sheet 8 and the combination Fresnel lens sheet 9 have their upper ends fixed and their lower ends pulled downward. The left and right sides of the combined lenticular sheet 8 and combined Fresnel lens sheet 9 are supported by left and right fixing brackets 19a and 19b so as to be able to expand and contract in the vertical direction, and the left and right fixing brackets 19a are provided with rollers, springs, wires, and the like as described above. The left and right fixing brackets 19b are pulled to the right by the same means. As described above, the combined lenticular sheet 8 and the combined Fresnel lens sheet 9 are stretched flat without slack.

FIG. 3 is a sectional view taken along the section line XX of FIG. 2, wherein 20 is a spacer, 21 is a cushion, 22 is a block, 23 is a Teflon tape, 24 is a block adhesive surface, and 25 is a partition plate. , 26 are compression springs, 27 is a support plate, 28 is a gap, and portions corresponding to FIG.

In the figure, the surface on the frame 14 side at the left end of the combination screen 1 comprising the combination lenticular sheet 8 and the combination Fresnel lens sheet 9 is defined as a block bonding surface 24, and the block bonding surface 24
Is glued. The left end of the combination screen 1 to which the block 22 is adhered is inserted into a portion where the cross-sectional shape of the left and right fixing bracket 19a is substantially U-shaped so as not to come off therefrom. In this case, the Teflon tape 23 is sandwiched on the block 22 side, and the spacer 20 and the cushion 21 are sandwiched on the opposite side. With the Teflon tape 23 and the cushion 21, the combination screen 1 can be moved vertically (in a direction perpendicular to the paper surface) with respect to the left and right fixing brackets 19a. Also, a slight gap 28 is provided between the left end of the combination screen 1 and the left and right fixing bracket 19a, so that the combination screen 1 can move in the left and right direction with respect to the left and right fixing bracket 19a. Has become.

An end of a wire 17 is fixed to an end of the left and right fixing bracket 19a, and the wire 17 is hung on a roller 15 fixed to a frame 14. As shown in FIG. 2, the other end of the wire 17 is fixed to one end of a spring 16. One end of another wire 17 is fixed to the other end of the spring 16. , And is fixed to another end of the left and right fixing bracket via another roller 15. The left end of the combination screen 1 is pulled leftward by the spring 16. Here, it is a half of the combination screen 1 that one spring 16 pulls leftward. The above-mentioned means including a roller 15, a spring 16, and a wire 17 are provided at two upper and lower positions with respect to the left end of the.

The right end of the combination screen 1 is also
As shown in FIG. 2 and FIG. 3, the same is true, and the description is omitted. Therefore, the combination screen 1 applies an even force from the left and right
It will pull the thing.

In FIG. 3, the combination screen 1
A partition plate 25 is provided along the bonding surface 12 of each lenticular sheet on the back side of the lenticular sheet. These partition plates 25 are support plates 27 attached to the upper and lower sides of the frame 14.
Are pressed against the combined Fresnel lens sheet 9 side of the combined screen 1 by a compression spring 26 provided in the combination screen 1. The partitions 25 partition the space on the back side of the combination screen 1 into three spaces in the horizontal direction.

Even if the combination screen 1 expands and contracts in the left and right direction due to changes in temperature and humidity, and the adhesive surface 12 of the lenticular sheet is displaced left and right accordingly, the partition plate 25 is supported by the compression spring 26, and Combination screen 1
Is pressed against the adhesive surface 12 of the lenticular sheet that is displaced and tilted while being pressed against the adhesive surface 12 of the lenticular sheet, and does not shift from the adhesive surface 12 of the lenticular sheet.

These partition plates 25 separate the projection units arranged in the left-right direction. For example, in FIG. 1, the projection light from the projection unit facing the screen 3b does not leak to the screens 3a, 3c on both right and left sides. To do.

FIG. 4 is a sectional view taken along the line Y--Y of FIG. 2. 29 is a spacer, 30 is a cushion, 31 is a block, 32 is a Teflon tape, 33 is a block adhesive surface, and 34 is a partition plate. , 35 are compression springs, 36 is a support plate, and portions corresponding to those in FIG.

In the same figure, the back surface of the upper end of the combination screen 1 is used as a block bonding surface 33, and the block 31 is bonded to the block bonding surface 33, and the upper end to which the block 31 is bonded is the cross-sectional shape of the upper and lower fixing bracket 18a. Is inserted into the downward U-shaped part so as not to come off. In this case, a Teflon tape 32 is sandwiched on the lower surface of the block 31, and a spacer 29 and a cushion 30 are sandwiched on the opposite side of the upper surface of the combination screen 1 from the block bonding surface 33. With the Teflon tape 32 and the cushion 30, the combination screen 1 can be moved in the left-right direction (the direction perpendicular to the paper surface) with respect to the left-right fixing bracket 18a. Here, the upper and lower fixing brackets 1
8a is fixed to the frame 14.

The lower end of the combination screen 1 is also movably attached to the upper and lower fixing brackets 18b. The upper and lower fixing brackets 18b are, like the left and right fixing brackets 19a and 19b described in FIG. It is pulled downward by means of a roller 15, a spring 16, and a wire 17. Such means are provided for each of the lenticular sheets 10a, 10b, 10c, as shown in FIG. 2, whereby the combination screen 1 is evenly pulled downward.

As shown in FIG. 4, on the back side of the combination screen 1, an adhesive surface 13 of the Fresnel lens sheet is provided.
A partition plate 34 is provided along. This partition plate 34
Is the support plate 3 attached to the left and right sides of the frame 14.
6 is pressed against the combined Fresnel lens sheet 9 side of the combined screen 1 by a compression spring 35. The partition plate 34 divides the space on the back side of the combination screen 1 into two upper and lower spaces.

When the combination screen 1 changes in temperature or humidity,
Even if the adhesive surface 13 of the Fresnel lens sheet expands and contracts in the vertical direction, the partition plate 34 is
Since it is supported by the compression spring 35 and pressed against the combination screen 1, it is tilted while being pressed against the displaced bonding surface 13 of the Fresnel lens sheet, and does not shift from the bonding surface 13 of the Fresnel lens sheet.

The partition plate 34 separates the projection units arranged in the vertical direction. For example, in FIG. 1, the projection light from the projection unit facing the upper screen 3a does not leak to the lower screen 3d. To

As described above, in this embodiment, a plurality of screens are bonded to form a large-screen combination screen 1. Therefore, the conventionally required screen connector is unnecessary, and furthermore, the connection with the screen is eliminated. Deviate between
Never leave.

The large screen combination screen 1 has its upper end fixed and extended from the left and right or from below by a spring 16, so that the flatness is maintained, and the combination is made by changes in temperature and humidity. Screen 1
Even if is stretched, the combination screen 1 is movably supported, so that the expansion and contraction can be absorbed by the spring 16, and the flatness is not impaired.

Further, even if the combination screen 1 expands and contracts due to changes in temperature and humidity, the partition plate 25 does not shift from the bonding surface 12 of the lenticular sheet, and the partition plate 3 does not move.
4 does not deviate from the adhesive surface 13 of the Fresnel lens sheet. Therefore, the screen corresponding to each projection unit is always an area partitioned by the bonding surface 12 of the lenticular sheet and the bonding surface 13 of the Fresnel lens sheet,
The projection light from the projection unit does not leak to the screen for another projection unit.

FIG. 5 is an external perspective view showing another embodiment of the multi-vision screen device according to the present invention.
Reference numeral 7 denotes a locking piece, and portions corresponding to those in FIG.

In the figure, in the combination screen 1,
An engagement piece 37 is attached to a predetermined location along the bonding surface 12 of each lenticular sheet. These engagement pieces 37
Is for engaging the combination screen 1 with the partition plate 25 shown in FIG. According to such a configuration, in order to make it easier for the user to see the screen, the combination screen 1 may be mounted on the mount 7 at an angle as shown in FIG.
Even in such a case, the flatness of the combination screen 1 is maintained.

FIG. 6 is a sectional view taken along the section line XX of FIG. 5, wherein 38 is a through hole, 39 is a partition plate, and portions corresponding to FIG. Is omitted.

In the figure, through holes 38 are provided near both sides of the bonding surface 12 of the lenticular sheet. A wire-like locking piece 37 is passed through these through holes 38, and the combination screen 1 and the partition plate 39, whose tip abuts on the bonding surface 12 of the lenticular sheet, are loosely fastened to the frame 14 by the locking piece 37. Further, the distal end portion of the partition plate 39 has elasticity, and by tightening the locking pieces 37,
The tip of the partition plate 39 is elastically brought into contact with the combination screen 1.

Therefore, when the combination screen 1 expands and contracts in the left-right direction, the bonding surface 12 of the lenticular sheet is expanded.
Even if is displaced to the left or right, the tip of the partition plate 39 is also inclined by the engagement piece 37, so that the tip of the partition plate 39 does not shift from the bonding surface 12 of the lenticular sheet.

In this embodiment, the partition plate (not shown) in contact with the adhesive surface 13 of the Fresnel lens sheet is supported like a partition plate 34 shown in FIG.

In the embodiment shown in FIG. 5, the locking piece 37 is provided at a position along the bonding surface 12 of the lenticular sheet. However, as shown in FIG. May be provided at a predetermined position along the line, and the same effect as the embodiment shown in FIG. 5 can be obtained. FIG. 8 is a cross-sectional view along the section line YY in FIG. 7, and the locking of the partition plate 40 and the combination screen 1 by the locking pieces 37 is the same as that in FIG.

In order to maintain the flatness of the combination screen 1 even when the combination screen 1 is inclined with respect to the gantry 7, either the bonding surface 12 of the lenticular sheet or the bonding surface 13 of the Fresnel lens sheet is required. It is needless to say that the locking piece 37 may be provided along the bonding surface 12 of the lenticular sheet and the bonding surface 13 of the Fresnel lens sheet.

FIG. 9 is a front view of a principal part showing still another embodiment of the multi-vision screen device according to the present invention, wherein 41 is a frame, 42a and 42b are upper and lower fixing brackets,
Reference numerals 43a and 43b denote vertically long holes, and portions corresponding to the above-mentioned drawings are denoted by the same reference numerals, and redundant description will be omitted.

In the figure, the upper end of the combination screen 1 is entirely or partially supported by the upper and lower fixing brackets 42a, and the lower end is entirely or partially supported by the upper and lower fixing brackets 42b.

FIG. 1 is a sectional view taken along the line Y--Y in FIG.
As is clear from FIG. 0, the upper end of the combination screen 1 is covered with a Teflon tape 45, and a viscoelastic body 44 is further placed on the Teflon tape 45, and the viscoelastic body 44 is sandwiched by the elastic U-shaped portions of the upper and lower fixing brackets 42a. . In this case, the pressing force due to the elasticity of the U-shaped portion is set to such a degree that the combination screen 1 can move with respect to the Teflon tape 45. Similarly, the lower end of the combination screen 1 is attached to the upper and lower fixing brackets 4.
2b.

Pins 46a and 46b are implanted in the upper and lower fixing brackets 42a and 42b, respectively.
Reference numeral 46b is fitted to vertically long holes 43a and 43b provided on the upper side and the lower side of the frame 41. Therefore, the upper and lower fixing brackets 42a and 42b can move up and down. Of course,
The combination screen 1 can be moved left and right with respect to the upper and lower fixing brackets 42a and 42b by the Teflon tape 45.

FIG. 11 is an enlarged plan view of the portion A in FIG. 9, and FIG. 12 is a side view seen from the right side in FIG.
7 is a rotary shaft, 48 is a round hole bearing, 49 is a long hole bearing, 50 is an L-shaped bearing, 51 is a round hole, 52 is a wire spring, and 53 is a side wall, and is the same as the part corresponding to the above-mentioned drawing. The sign is attached.

In FIGS. 11 and 12, a round hole bearing 48 is provided at the upper right corner of the frame 41, and a rotating shaft 47 implanted on the side wall 53 of the upper and lower fixing bracket 42a is fitted thereto. ing. Therefore, the upper and lower fixing brackets 42a are rotatable around the rotation shaft 47. An L-shaped hole 50 and a round hole 51 are provided in the frame 41, and one end of a wire spring 52 is inserted into the round hole 51 from the back side and fixed. The wire spring 52 protrudes from the L-shaped hole 50 to the front side, and its end abuts on the side wall 53 of the upper and lower fixing bracket 42a.

In this state, the wire spring 52 is deformed and abuts against the side wall 53 of the upper and lower fixing brackets 42a, whereby the combined screen 1 from the upper and lower fixing brackets 42a is attached to the frame 41 as shown in FIG. The upper and lower fixing brackets 42a are inclined so as to be closer to each other.

In FIG. 11, the same means is provided for the upper and lower fixing brackets 42b at the lower right corner of the frame 41, and as shown in FIG.
The upper and lower fixing brackets 42b are inclined such that the combination screen 1 from 2b is inclined toward the frame 41.

As described above, the combination screen 1 is elastically deformed to have a concave surface. The combination screen 1 tends to be flat, but the combination screen 1 has a concave surface due to the balance between the force for this purpose and the urging force of the linear spring 52.

Here, for the upper and lower fixing brackets 42a,
Although a round hole bearing 48 is provided, the upper and lower fixing brackets 42b are provided.
, A long hole bearing 49 is used. this is,
This is to make it possible to absorb expansion and contraction of the combination screen 1 by moving the upper and lower fixing brackets 42b up and down.
Thus, even if the combination screen 1 expands and contracts, the concave shape of the combination screen 1 does not change.

FIG. 13 is a plan view showing a main part of still another embodiment of the multi-vision screen device according to the present invention, wherein 54 is a rotating shaft, 55 is a round hole bearing, 56 is a long hole bearing, 57 Is a torsion spring, and portions corresponding to FIG.

In this embodiment, as in the embodiments described with reference to FIGS. 9 to 12, the combination screen 1 is elastically deformed to have a concave surface, but the means for this is different.

In FIG. 13, a round hole bearing 55 is provided on the frame 41 near the right end of the upper and lower fixing bracket 42a, and the round hole bearing 55 and a hole provided in the side wall 53 of the upper and lower fixing bracket 42a are provided. A rotation shaft 54 is attached to the rotator.

A torsion spring 57 is attached to the rotating shaft 54, and the torsion spring 57 is
Presses against the side wall 53 so that the side wall 53 rotates about the rotation shaft 54. Thereby, the upper and lower fixing brackets 42a are in a state of being inclined with respect to the surface of the frame 41 as shown in FIG.

The same applies to the upper and lower fixing members 42b. The torsion spring 57 attached to the rotating shaft 54 extending between the elongated hole bearing 56 and the hole provided in the side wall 53 of the upper and lower fixing members 42b allows the upper and lower fixing members 42b to be fixed. When the side wall 53 is urged, the upper and lower fixing brackets 42b are also inclined with respect to the surface of the frame 41 as shown in FIG.

As described above, the combination screen 1 is elastically deformed to have a concave shape, and the same effect as that of the embodiment described with reference to FIGS.

[0061]

As described above, according to the present invention,
Even if the combination screen expands and contracts due to changes in the ambient temperature and humidity or by inclining the screen surface, the combination screen does not warp or float, and can maintain good flatness. Therefore, on the combination screen, blurring of the image can be avoided and a clear display image can always be obtained, so that the display quality can be significantly improved.

Further, since the partition plate for partitioning the individual screen of each projection unit can be moved together with the expansion and contraction of the combination screen, such a partition plate is always in contact with the bonding surface which is the joint of the individual screens and is in contact with the combination screen. In addition, while reducing the width of the bonding surface, it is possible to prevent the projection light from the projection unit from leaking to the individual screens for the other projection units, thereby achieving a remarkable improvement in display quality.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an embodiment of a multi-vision screen device according to the present invention.

FIG. 2 is a front view showing a part of a combination screen in FIG. 1;

FIG. 3 is a sectional view taken along the section line XX of FIG. 2;

FIG. 4 is a cross-sectional view taken along a section line YY in FIG. 2;

FIG. 5 is an external perspective view showing another embodiment of the multi-vision screen device according to the present invention.

FIG. 6 is a sectional view taken along the section line XX of FIG. 5;

FIG. 7 is an external perspective view showing still another embodiment of the multi-vision screen device according to the present invention.

FIG. 8 is a cross-sectional view along the section line YY in FIG. 7;

FIG. 9 is a front view showing a part of a combination screen of still another embodiment of the multi-vision screen device according to the present invention.

FIG. 10 is a sectional view taken along the section line YY in FIG. 9;

FIG. 11 is an enlarged front view showing a portion a in FIG. 9;

FIG. 12 is a side view as viewed from the right side of FIG. 11;

FIG. 13 is a front view showing a main part of still another embodiment of the multi-vision screen device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combination screen 3a-3f Screen 7 Mount 8 Combination lenticular sheet 9 Combination Fresnel lens sheet 10a-10c Lenticular sheet 11a, 11b Fresnel lens sheet 12 Lenticular sheet adhesion surface 13 Fresnel lens sheet adhesion surface 14 Frame 15 Roller 16 Spring 17 Wire 18a, 18b Upper and lower fixing brackets 19a, 19b Left and right fixing brackets 25 Partition plate 26 Compression spring 27 Support plate 34 Partition plate 35 Compression spring 37 Locking piece 38 Through hole 39, 40 Partition plate 41 Frame 42a, 42b Vertical fixing bracket 43a, 43b Vertical hole 46a, 46b Pin 47 Rotating shaft 48 Round hole bearing 49 Long hole bearing 52 Wire spring 53 Side wall 54 Rotating shaft 55 Round hole bearing 56 Long hole bearing 57 Torsion spring

Continuing on the front page (72) Inventor Yukinori Kawamura 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Within the AV Equipment Division, Hitachi, Ltd. In the image information system (72) Inventor Hideo Misono 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd. AV equipment division (56) References JP-A-5-216124 (JP, A) JP-A-3 −73938 (JP, A) Fully open 61-124034 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03B 21/56-21/62 H04N 5/68 H04N 5/74

Claims (3)

(57) [Claims] 1. A multi-vision screen device in which a screen is assigned to each of a plurality of projection units, and a projected image of each of the projection units is projected on a corresponding screen to display a large-screen image. In the above, the end portions of the plurality of sheets are adhered to form one combined sheet, and a combined screen is formed by a plurality of such combined sheets having different cross-sectional shapes, thicknesses, and the like. The adhesive surface in the direction is a partition line, and each area separated by the partition line is the screen for each of the projection units, and a partition plate is arranged along the entire partition line on the projection unit side of the combination screen. And compress the partition plate
A multi-vision screen device, wherein the combination screen is pressed by a spring . 2. A multi-vision screen device in which a screen is assigned to each of a plurality of projection units, and a projected image of each of the projection units is projected on a corresponding screen to display a large-screen image. In the above, the end portions of the plurality of sheets are adhered to form one combined sheet, and a combined screen is formed by a plurality of such combined sheets having different cross-sectional shapes, thicknesses, and the like. The direction of the adhesive surface is a partition line, and each area divided by the partition line is the screen for each of the projection units. The partition having elasticity along the entire partition line on the projection unit side of the combination screen. the plate was placed, and the
Through holes provided on both sides of the partition line of the combination screen
The linear member is passed through and twisted on the opposite side of the partition plate.
And tightening by the linear member and elasticity of the partition plate itself.
A multi-vision screen device , wherein the partition plate is pressed against the combination screen . 3. A screen for each of a plurality of projection units.
Are assigned, and correspond to the projected images of each of the projection units.
Image on a large screen
Multi-vision screen device
Then, by bonding the ends of a plurality of sheets to one combined sheet
And multiple such combinations with different cross-sectional shapes and thicknesses.
The combination screen is formed with the combination sheet, and the top and bottom of each combination sheet in the combination screen are formed.
The adhesive surface in the left-right direction is used as a dividing line, which is separated by the dividing line
The respective areas are screened for each of the projection units.
On the projection unit side of the combination screen.
Place a partition along the entire cutting line and apply a bending moment to the end of the combination screen
This makes it possible to make the surface of the combination screen concave.
Multivision screen apparatus characterized in that a stage.