JP2003091247A - Optical fiber display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a screen panel for supporting an output end part of optical fiber from lots of supporting blocks freely in size, seamlessly, and without the surface curved. SOLUTION: The screen panel 18 in an optical fiber display device 10 is made up by laminating lots of supporting blocks 20 having insertion ditches for inserting the output ends of the optical fiber 12, and the supporting blocks 20 are formed with a plurality of positioning shaft insertion through-holes 22A-22D in the direction of the panel height, and the supporting blocks 20 are fixed so as not to dislocate in the direction of the thickness of the screen panel 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber display, and more particularly, it expands image light incident on a focusing end of the optical fiber to a screen panel on the other end of the optical fiber in which the pitch between the optical fibers is expanded. The present invention relates to an optical fiber display adapted to form image light.

[0002]

2. Description of the Related Art In the above optical fiber display, the screen panel is, for example, an acrylic plate in which holes for inserting optical fiber terminals are formed at a constant pitch by a laser beam.

However, since the size of the acrylic plate is limited in manufacturing, the size of the screen is, for example, 100.
If the size is more than one inch, it is necessary to connect about three acrylic plates to each other, which causes a disadvantage that a gap is generated on the connection surface.

Further, in the case of a large screen, there is no apparatus for forming a small hole for inserting an optical fiber terminal by machining, or it is very costly, so laser processing is used. However, the shape of the laser beam and acrylic resin are used. The small holes formed in the acrylic plate may become elongated holes or may be formed obliquely due to variations in plate dissolution, etc., and when the optical fiber terminal is inserted here, the image quality formed on the screen is There is a problem that it is lowered in some parts.

When forming a large-sized screen as described above, for example, Japanese Utility Model Laid-Open No. 3-119880,
As disclosed in Japanese Utility Model Laid-Open No. 4-72269, there is a block having a full width size of a screen in which a plurality of holes for inserting an optical fiber terminal are previously formed and assembled in a vertical direction of a screen panel.

[0006]

As described above, when a large number of blocks are stacked to form a screen, the size (especially the width size) of the outer periphery of the screen is limited to the length of the block, and the size of the screen is reduced. There is a problem that it becomes difficult to increase the size.

Further, in the case of a large screen,
There is a problem that the central portion of the stacked blocks bends in the thickness direction of the screen, and as a whole, a convex or concave curve causes unevenness or distortion on the image forming surface.

The present invention has been made in view of the above problems of the prior art. When an optical fiber screen is constructed by stacking a large number of support blocks for supporting the output side end of the optical fiber, the screen size is limited. It is an object of the present invention to provide an optical fiber display device that has a large size optical fiber screen that is continuous and has high flatness, and that suppresses the curvature in the screen thickness direction.

[0009]

According to the present invention, light constituting an image is incident from an input end face formed by assembling one end of a plurality of optical fibers, and is supported by a screen panel at equal intervals. A fiber optic display device for forming a magnified image by light emitted from the other end of the plurality of optical fibers, wherein the screen panel comprises a plurality of support blocks of substantially the same shape stacked in a panel height direction, In addition, the support blocks are arranged side by side in the panel width direction, and each of the support blocks is at least 2 in the panel width direction.
It has a positioning shaft insertion hole formed penetrating in the height direction at a position, and the positioning shaft in the height direction is inserted into the positioning shaft insertion hole of the support blocks stacked in the height direction. The stacked support blocks are positioned at least in the panel thickness direction, and the stacked support blocks and the support blocks adjacent to each other in at least one of the height directions are arranged in parallel in the panel width direction at equal pitches. A plurality of optical fiber insertion holes that are arranged in the panel thickness direction are formed, and the other end of the optical fiber is inserted and fixed therein, and the optical fiber display device achieves the above object. Is.

In this optical fiber display device, a large number of support blocks supporting the output side end of the optical fiber are stacked in the height direction to form a screen, and the support blocks stacked in the height direction are formed in advance. Since the positioning shafts are inserted and fixed in a skewered state in the positioning shaft insertion holes that are provided, the positions of the stacked support blocks in the panel thickness direction are securely fixed, and the surface of the large-sized panel can be fixed in the panel thickness direction. Is suppressed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 and 2, an optical fiber display device 10 according to an example of this embodiment is
From an input end face 14 formed by assembling one end portions of a plurality of optical fibers 12, light forming an image is incident from a liquid crystal projector 16, for example, and a screen panel 18 is entered.
The plurality of optical fibers 12 supported at equal intervals by
The enlarged image is formed by the light emitted from the other end of the.

The optical fiber 12, the liquid crystal projector 16, and the screen panel 18 have an outer periphery and a rear face arranged in a housing 19, and a front face of the outer periphery of the screen panel 18 is a frame-shaped cover 19A which is a part of the housing 19.
Are covered by.

The screen panel 18 is shown in FIGS.
A plurality of identically shaped support blocks 20, as shown in FIG.
Further, the half-divided end blocks (described later in detail) are stacked in the panel height direction and arranged in the panel width direction to be integrally configured.

Each of the support blocks 20 has positioning shaft insertion holes 22A to 22D formed at four positions in the panel width direction so as to penetrate therethrough in the height direction, and the support blocks 20 are stacked in the height direction. Positioning shaft insertion hole 22A
22D, at least two of the positioning shafts 24 in the panel height direction are inserted to perform positioning in the panel thickness direction in a stacked state.

Here, the support block 20 is long in the panel width direction, and in the thickness direction, the optical fiber 1 is provided.
The depth is short enough to hold the other end of 2, and is a strip shape as a whole.

The positioning shaft insertion holes 22A to 22 are also provided.
D is at the center position of the support block 20 in the panel width direction.
Two support blocks 20 are arranged symmetrically with respect to each other, and are adjacent to each other in the panel height direction as shown in FIG.
When they overlap each other by 1/2 in the panel width direction, for example, the panel width of the support block 20 adjacent to the upper side with respect to the positioning shaft insertion holes 22C and 22D on the right side in FIG. The positioning shaft insertion holes 22A and 22B on the left side of the direction overlap each other.

Therefore, the support blocks 20 are stacked and connected in a so-called zigzag state when viewed from the front of the screen panel 18.

The positioning shaft insertion holes 22A-22
D is a rectangle that is thin in the panel width direction and long in the panel thickness direction, and the positioning shaft 24 has a cross-sectional shape, as shown in FIG.
It has a rectangular shape slightly smaller than 2D, and when the positioning shaft 24 is inserted into any of the positioning shaft insertion holes 22A to 22D, it can be fitted to a certain extent.

As described above, the support blocks 20 are stacked in a so-called zigzag state to form the screen panel 18, and the half-pitch blanks of the support block 20 at the left and right ends of the screen panel 18 are supported. Block 2
Left end block 2 by dividing 0 into two equal parts in the panel width direction
By overlapping 6A and the right end block 26B, the left and right ends of the screen panel 18 are aligned.

At the end of the positioning shaft 24, as shown in FIG. 7, a tightening fitting 30 including fixed blocks 31A, 31B and a sliding block 31C is provided. Here, for example, at the end position where the pair of positioning shafts 24 inserted through the two positioning shaft insertion holes 22A and 22B in the support block 20 penetrate the support block 20 at the upper end in the panel height direction and project.
The penetrating end which is fixed integrally with the fixing block 31A by the screw 33 while being parallel to the fixing block 31A and which penetrates the support block 20 at the lower end in the panel height direction is fixed block 31B.
It is fixed with screws.

In the pair of positioning shafts 24 fixed to the fixed blocks 31A and 31B, the ends of the pair of positioning shafts 24 protruding from the support block 20 at the upper end of the panel are located between the support block 20 at the upper end and the fixed block 31A. The sliding block 31C is attached to the pair of positioning shafts 2.
4, both ends of which are slidably supported.

A fastening bolt 34, which is parallel to the pair of positioning shafts 24, is screwed into the fixed block 31A at an intermediate position between the pair of positioning shafts 24, and the tip thereof is provided in contact with the sliding block 31C. The tightening bolt 34 is rotated with respect to the fixed block 31A to strongly push the sliding block 31C toward the support block 20 at the upper end by the tip, and the sliding block 31C is pushed between the sliding block 31C and the fixed block 31B. The support blocks 20 stacked on each other can be clamped and fixed so that no gap is generated in the panel height direction.

The outer periphery of the screen panel 18 and the fastening member 30 protruding vertically from the screen panel 18 are covered by the frame-shaped cover 19A.

As shown in the enlarged view of FIGS. 8 and 9, the insertion groove having a substantially U-shaped cross section is formed on the upper surface of each of the support block 20 and the left and right end blocks 26A, 26B stacked as described above. 36 are formed at a pitch equal to the desired pitch of the output ends of the optical fibers 12 on the screen panel 18.

The insertion groove 36 is formed slightly deeper than the diameter of the optical fiber 12, and the radius of the arcuate bottom of the U-shaped insertion groove 36 is slightly larger than the radius of the circular cross section of the optical fiber 12.

The support block 20 or the left and right end blocks 26A adjacent to the upper side of the insertion groove 36,
By contacting the lower side surface of 26B, an optical fiber insertion hole 38 into which the output end of the optical fiber 12 can be inserted is formed together with the lower side surface.

The output side end of the optical fiber 12 is inserted into the optical fiber insertion hole 38, and the end face is fixed to the surface of the screen panel 18 with the adhesive so as to be flush with the surface of the screen panel 18. The constituent light can be emitted.

When the support blocks 20 are stacked in the panel height direction, the support blocks 20 are prevented from being displaced from each other in the panel thickness direction and the width direction, so that the surface of the screen panel 18 becomes smooth. For this purpose, a fitting structure is provided.

As shown in FIGS. 4 and 9, the support block 20 has a fitting projection 40 for positioning on one surface in the panel height direction (the lower side surface in the example of this embodiment). A fitting concave portion 4 which is formed and can be fitted to the fitting convex portion 40 of the support block 20 adjacent to the fitting convex portion 40 on the other surface (upper side surface) in the panel height direction.
2 is formed. The fitting convex portion 40 and the fitting concave portion 42 are symmetrical with respect to the center in the panel width direction in one support block 20, and are 3 at symmetrical positions.
A total of 6 places are formed, one for each place.

Therefore, it is possible to fit the fitting convex portion 40 and the fitting concave portion 42 by shifting the two supporting blocks 20 adjacent to each other in the panel height direction by half the length.

As shown in the enlarged view of FIG. 8, the fitting recess 42 is formed in a rectangular shape in plan view, leaving both ends in the panel thickness direction of the support block 20, and FIG.
As shown in FIG. 5, the depth is formed deeper than the insertion groove 36. Therefore, the insertion groove 36 is cut out at the position of the fitting recess 42,
However, it is left only at both end positions in the panel thickness direction.

The fitting convex portion 40 has such a height and size that it can be press-fitted into the fitting concave portion 42 with a weak force, and the tip end surface thereof is fitted into the fitting concave portion 42. The fitting recess 42 is made to substantially abut.

The fitting convex portion 40, as shown in FIG.
It is divided into two parts in the panel thickness direction by a dividing groove 40A that crosses in the panel width direction at an intermediate position in the panel thickness direction, and in the panel width direction, as shown in FIGS. 42 Insertion groove 36 formed on the side surface
And a convex portion side insertion groove 40B which is parallel to the panel width direction and longitudinally cuts in the panel thickness direction at a position where it overlaps with the panel height direction.
Is divided into a plurality in the panel width direction.

The protrusion-side insertion groove 40B formed in the fitting protrusion 40 has its depth flush with the bottom surface of the fitting protrusion 40, that is, the entire height of the fitting protrusion 40. It is formed to the same depth as. Further, the width of the convex portion side insertion groove 40B is the same as that of the insertion groove 36.

Therefore, as shown in FIG. 9, the fitting concave portion 42 in the support block 20 adjacent to the fitting convex portion 40.
When they are fitted together, the insertion groove 36 on the side of the fitting recess 42 and the projection side insertion groove 40B on the side of the fitting projection 40 overlap with each other, and the arcuate bottoms of both sides form a substantially circular optical fiber insertion hole 3.
8 is formed.

As shown in an enlarged view in FIG. 8, the insertion groove 36 on the side of the fitting recess 42 is formed in the screen panel 1
An end portion on the back surface side of 8 is an enlarged diameter portion 36A having a large hole diameter, so that when the output end portion of the optical fiber 12 is inserted into the insertion groove 36, its tip can be easily guided.

Reference numerals 44A in FIGS. 3, 4, 8 and 9 are guide / positioning pins provided adjacent to one end of the fitting recess 42 in the panel width direction, and 44B is this guide / positioning pin 44A. The guide / positioning holes, which are provided adjacent to the fitting protrusion 40 and are capable of being fitted with the guide / positioning pins 44A, are shown at positions opposite to those. A pair of these guide / positioning pins and holes 44A and 44B are provided in the panel thickness direction. Also, FIGS.
Reference numeral 33 denotes a pair of guide / positioning pins 44.
At a position between A, a circular sub-positioning hole formed by penetrating the support block 20 in the thickness direction is shown. here,
A sub-positioning shaft 24A shown by a two-dot chain line in FIG. 9 is inserted as necessary.

The fitting protrusion 4 of the support block 20.
The positioning shaft insertion holes 22A to 22A to
A bracket fitting recess 46 is formed continuously from the back surface side in the panel thickness direction so as to surround each of 22D. The bracket fitting concave portion 46 has the positioning shaft insertion holes 22A to 22D and the U-shaped pressing wall portion 23 around the positioning shaft insertion holes 22A to 22D, and leaves a part on the panel front side in the panel thickness direction. From the side and in the panel height direction, the depth is formed so as not to reach the insertion groove 36.

As shown in FIG. 10, the holding wall portion 23 has a U-shape with the front side of the panel open, and its two parallel sides are provided at positions overlapping the pair of adjacent insertion grooves 36A. Fiber optic pressers 23A and 23B,
Further, one side connecting these is a reinforcing portion 23C.

Further, as shown in FIG. 5, the bracket fitting concave portion 46 has a positioning shaft insertion hole 22A,
22D includes a continuous recess 46A that is continuous with the seal portion in the panel width direction.

Therefore, the bracket fitting recesses 46 are provided in one support block 20 around the positioning shaft insertion holes 22A and 22B which are adjacent to each other in the panel width direction.
It is continuously formed around 2C and 22D.

Further, the bracket fitting recess 46 has a slit-like opening on the rear surface side of the panel at the mating surface when the plurality of support blocks 20 are stacked in the panel height direction.

A support bracket 48 is provided in the bracket fitting recess 46, as indicated by a chain double-dashed line in FIG.
The fitting surface portion 48A is fitted.

The fitting surface portion 48A is a plate-like member having the same shape as the bracket fitting recess 46 when viewed from the panel height direction and having a thickness equal to the depth of the bracket fitting recess 46. Yes, positioning shaft insertion holes 22A, 22B surrounded by the bracket fitting recess 46
Or, at the position overlapping with 22C and 22D, the pressing wall portion 23
Through hole 49 is formed so as to enclose. Here, the through hole 49 is sized and shaped so that it can be lightly press-fitted into the pressing wall portion 23 to be fitted therein.

The support bracket 48 has a fitting surface portion 48.
When A is fitted in the bracket fitting recess 46, FIG.
As also shown in FIG. 3, the arm portion 48B is formed so as to extend in a straight plane shape in the panel rear surface direction.

The arm 48B is provided with a reinforcing piece 48C which is bent at a right angle from the one edge in the width direction and is formed in the panel height direction.

The reinforcing piece portion has the same thickness as the fitting surface portion 48A and the arm portion 48B, and the position in the panel width direction with respect to the support block 20 is the insertion groove 3
6 is an intermediate position so that the optical fiber 12 inserted in the insertion groove 36 is not interfered with.

As shown in FIG. 2, on the back side of the screen panel 18 assembled by the support block 20 and the like, the vertical frame 5 is provided at a position separated from the back side.
2 is arranged, and the reinforcing piece 48C is provided on the side surface of the vertical frame 52 in the panel width direction by the bolt 50.
Are fixed (see FIG. 11).

As a result, the screen panel 18 is connected to the vertical frame 52 through the plurality of support brackets 48.
It will be positioned and fixed at.

The upper and lower ends of the vertical frame 52 are supported by a support frame 54 formed in a quadrangular shape so as to surround the screen panel 18, and reinforcing pieces of the support bracket 48 are provided in the panel width direction. Part 48C
Of the panel width direction, for example, 100
In the case of an inch panel, ten panels are provided in the panel width direction.

Further, the support brackets 48 are not provided on all the support blocks 20, but as shown in FIG. 11, they are appropriately spaced vertically, for example, at positions that divide the screen panel 18 into three equal parts in the height direction. Two locations will be provided.

As a result, the screen panel 18 formed by stacking the support blocks 20 and the like on the inner side, except for the outer peripheral portion thereof, has the support frame 54 and the support frame 54 at a total of 20 inside. It will be positioned and fixed in place. The number of positioning shafts 24 is 20.

When the screen panel 18 is actually assembled, as described above, the support blocks 20 which are shifted by 1/2 in the panel width direction are alternately arranged in the panel height direction.
That is, they are stacked and fit in a so-called zigzag pattern.

At this time, at a predetermined position, the fitting surface portion 48A of the support bracket 48 is sequentially inserted into the bracket fitting recess 46.

Further, the left end block 26A or the right end block 26B is stacked on the half space in the width direction of the support block 20 at both ends in the width direction of the screen panel 18.

If necessary, an adhesive is applied to the fitting recess 42 in any of the above blocks.

The support block 2 in the stacked state
At least two positions of the positioning shaft insertion holes 22A to 22D, such as 0, are positioned at the positioning shafts 2 and 2 respectively.
4 is inserted in the panel height direction. At this time, it is preferable that an adhesive is injected in advance into the positioning shaft insertion holes 22A to 22D so that the inserted positioning shaft 24 and the support block 20 are solidified together. or,
If necessary, the sub-positioning shaft 24A is likewise preliminarily filled with an adhesive agent and inserted into the sub-positioning hole 33.

Next, the fixed block 3 is attached to the lower end of the positioning shaft 24 protruding from the support block 20 at the lower end.
1B is tightened and fixed by a screw 25, and at a portion protruding from the support block 20 at the upper end, a sliding block 3 is provided between a pair of positioning shafts 24 as shown in FIG.
1C is fitted, and further, the fixing block 31A is tightened and fixed to the upper end of the positioning shaft 24 with the screw 25. In this state, the tightening bolt 34 attached to the fixed block 31A is rotated to move the sliding block 31
C is rotationally driven so that the support block 20 at the upper end is pushed downward.

Therefore, the stacked support blocks 20
The left and right end blocks 26A, 26B are strongly tightened in the panel height direction by the tightening bolts 34 via the sliding block 31C, and the fitting convex portion 40 and the fitting concave portion 42 are provided.
Are fitted to the deepest position.

Further, there is no gap between the blocks in the panel height direction, and the front surface of the screen panel 18 is made into a smooth straight flat surface.

Next, as described above, the positioning shaft 24
The support bracket 48, which is attached to the screen panel 18 fixed by the above, so as to project to the back surface side of the screen panel 18, is fixed to the vertical frame 52 by bolts 50, thereby supporting the whole on the support frame 54. Fix it.

In this state, the convex-side insertion groove 40B formed on the side of the fitting convex portion 40 and the insertion groove 36 formed on the side of the fitting concave portion 42 overlap with each other, and the arc-shaped grooves of both of them cause An optical fiber insertion hole 38 is formed.

Therefore, the tip of the output side of the optical fiber 12 can be easily inserted into the insertion groove 36 from the back surface side of the screen panel 18.

At this time, the expanded diameter portion 36A of the insertion groove 36 is
Since the tip of the optical fiber 12 to be inserted is guided, the insertion work becomes easy.

When the output side end of the optical fiber 12 is inserted into the optical fiber insertion hole 38 as described above, the support bracket 48 has the same thickness as the bracket fitting recess 46. Therefore, the optical fiber insertion hole 38 does not interfere with the panel height direction when viewed from the back surface side of the screen panel 18, and further, the reinforcing piece portion 48C of the support bracket 48 in the panel width direction.
Is located at an intermediate position of the optical fiber insertion hole 38, so that the support bracket 48 does not interfere when the output side end of the optical fiber 12 is inserted into the insertion groove 36.

When viewed from the rear surface side of the screen panel 18, the vertical frame 52 naturally overlaps the optical fiber insertion hole 38, but the vertical frame 52 is separated from the screen panel 18 between the support brackets 48. Therefore, by bending the optical fiber 12 near the vertical frame 52, the optical fiber 1
There is no obstruction to the insertion work of the output side end of the optical fiber 2 into the optical fiber insertion hole 38.

As described above, after the output side end portions of the optical fibers 12 have been inserted into all the optical fiber insertion holes 38, the optical fibers 12 inserted into the insertion grooves 36 are pre-coated on the bottom of the fitting recess 42. And the fitting convex portion 4
The adhesive extruded by the fitting of 0 hardens around the inserted optical fiber 12,
Each support block 20, left and right end blocks 26A, 26
B and the output end of the optical fiber 12 inserted therein are integrally bonded and cured.

In the optical fiber display device 10 according to the above-mentioned embodiment, the support bracket 48 has the fitting surface portion 48A fitted and connected to the bracket fitting recess 46 of the support block 20. But,
The present invention is not limited to this, and the support bracket 48 may have the fitting surface portion 48 </ b> A formed integrally with the support block 20 in advance. For example, insert molding may be performed as shown in FIG.

In this case, the support block 20 to which the support bracket 48 is attached in advance is used in combination with another support block 20. Further, the support block 20 does not require the bracket fitting recess 46.

Further, in the example of the above embodiment, the support bracket 48 is attached and fixed to the vertical frame 52 at the reinforcing piece portion 48C orthogonal to the fitting surface portion 48A and the arm portion 48B. However, the present invention is not limited to this, and for example, as shown in FIG. 13, a horizontal horizontal frame 56 is provided in place of the vertical frame 52, and the support bracket 48 is
The mounting portion 48D at the tip of the arm portion 48B may be fixed to the upper surface or the lower surface of the lateral frame 56 with screws or the like without providing the reinforcing piece portion 48C.

Next, referring to FIG. 14, an optical fiber display device 60 according to a second example of the embodiment of the present invention.
Will be described.

This optical fiber display device 60
Is a so-called multi-screen type in which a plurality of sub-assembly panels 62 of the same size are closely contacted in the vertical and horizontal directions and are connected in a plane to form a screen panel 64 as a large single screen. Is.

The sub-assembly panel 62 includes the support block 20, the left and right end blocks 26A, 2 as in the screen panel 18 in the first example of the embodiment.
6B are combined, and the both end edges in the height direction are formed by fitting the upper end block 28A and the lower end block 28B which are enlarged and shown in FIG. 15 and FIG. 30 is not used.

The upper end block 28A and the lower end block 28B are obtained by equally dividing the support block 20 in the panel height direction, and the division surface is a smooth surface 29.

Further, the lower fitting convex portion 40 of the upper end block 28A is formed in the fitting concave portion 42 of the support block 20 adjacent to the lower side thereof, and the upper fitting concave portion 42 of the lower end block 28B is formed. , The upper and lower end surfaces of the sub-assembly panel 62 become the smooth surfaces 29 by being fitted into the lower fitting convex portions 40 of the support block 20 adjacent to the upper side and being stacked on the upper and lower sides of the sub-assembly panel 62. I am trying.

In this sub-assembly panel 62, the positioning shaft 24 is located up to the positions of the upper and lower end blocks 28A and 28B, and is not projected vertically, and the positioning shaft insertion hole 22 is formed.
For example, every other one of A to 22D is inserted.

Further, when the plurality of sub-assembly panels 62 each having a smooth outer periphery as described above are stacked in the panel height direction, the positioning shaft insertion hole 22 is formed.
The sub-assembly panels 62 are positionally fixed to each other through the positioning shaft 25 having a length in the entire height direction of the screen panel 52 at a portion of the A to 22D where the positioning shaft 24 is not inserted.

Since the other structure is the same as that of the optical fiber display device 10, the description thereof will be omitted.

In the optical fiber display device 60, the liquid crystal projector 16 is provided for each sub-assembly panel 62, but an image may be projected on the screen panel 64 from one liquid crystal projector.

When the liquid crystal projector 16 is provided for each sub-assembly panel 62, it is possible to form a multi-screen and display the same image for each sub-assembly panel 62, or all sub-assembly panels 62. One image can be configured and displayed on the screen panel 64 by the divided and displayed images.

In the optical fiber display device 10, the support blocks 20 are sequentially stacked or connected in the width direction of the screen panel, so that the screen size can be freely assembled to exceed 100 inches. The maximum size of the screen panel 18 is the support frame 54 and the vertical and horizontal frames 5.
This is due to the rigidity limit of 2.56, and if a wall surface of a building, a frame made of steel or the like is used, a screen panel having a size of several hundreds of inches or more can be constructed.

In addition, no matter how large the screen panel is made, small grids are not formed unlike the conventional multi-screen screen panel.

Furthermore, if the rigidity of the support frame 54, especially the vertical frame 52 or the horizontal frame 56, is sufficiently secured, the screen panel 18 is mounted on the screen frame 18 via the support bracket 48. By firmly connecting to 56, it is possible to suppress waviness, unevenness, curvature, etc. on the surface of the screen panel 18 and form a straight flat surface.

In the example of the above-mentioned embodiment, the number of the positioning shaft insertion hole, the fitting convex portion, and the fitting concave portion of the support block 20 is not limited, and the support block is arranged in the vertical direction. It suffices as long as it can be assembled by stacking and sequentially connecting in the width direction and can be fixed by inserting the positioning shaft in the panel height direction.

Further, the sectional shapes of the positioning shafts 24 and 25 and the positioning shaft insertion holes 22A to 22D are not limited to the rectangular shape, and other shapes may be used as long as they are within the insertion pitch of the optical fiber 12 in the panel width direction. For example, it may be oval, wedge-shaped or the like. However, the optical fiber 12
Due to the relationship between the insertion pitch and the rigidity, the cross-sectional shape that is long in the panel thickness direction and thin in the panel direction is preferable.

The cross-sectional shapes of the positioning shafts 24 and 25 and the positioning shaft insertion holes 22A to 22D are preferably the same or similar, but at least in the panel width direction and the thickness direction, they can be positioned and fixed. Good. Therefore, for example, the positioning shaft insertion holes 22A to
22D has a rectangular sectional shape, and the positioning shafts 24, 2
5 may be an ellipse whose dimensions in the panel width direction and the thickness direction are slightly smaller.

Further, in the example of the above embodiment, the fitting convex portion 40 and the fitting concave portion 42 of the support block 20 face downward, but they may face in the opposite direction.
However, it is convenient to set the fitting recess 42 upward so that the adhesive and the ultraviolet curable resin applied here do not flow out.

The insertion groove 36 into which the output end of the optical fiber 12 is inserted may be provided on the fitting convex portion 40 side. In this case, the protrusion-side insertion groove 40B is formed deeper than the base end of the fitting protrusion 40.

After fixing the output side end of the optical fiber 12 to the screen panel 18, a light diffusing plate 66 is provided on the surface side of the screen panel 18 as shown by the alternate long and short dash line in FIG. Optical fiber 1
Since the light emitted in a dot form from the output end of 2 is largely diffused, the light can be spread to the gap area between the pitches of the screen panel 18 of the optical fiber 12 to form an easy-to-see image.

Further, although the liquid crystal projector 16 is used as means for inputting image light to the input screen 14 of the optical fiber 12, the present invention is not limited to this, and the same is provided on the input end face 14. It is also possible to provide a transmissive liquid crystal panel having the above size, or to sequentially enter the R, G, and B color beams by field sequential control.

[0092]

Since the present invention is configured as described above, even when a large screen panel is formed by stacking a large number of support blocks, it is possible to reliably suppress waviness, unevenness and curvature on the screen panel surface. It has an excellent effect that a seamless and straight surface can be formed.

[Brief description of drawings]

FIG. 1 is a front view showing an optical fiber display device according to an example of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged plan view showing a support block for forming a screen panel of the optical fiber display device.

FIG. 4 is a sectional view of the same.

FIG. 5 is a plan view seen from the back side.

FIG. 6 is a supporting block which constitutes the screen panel,
Front view showing arrangement of other blocks

FIG. 7 is a perspective view showing a positioning shaft for fixing the screen panel and a tightening mechanism for tightening and fixing the support block by the positioning shaft.

FIG. 8 is an enlarged plan view showing a main part of a support block.

FIG. 9 is an enlarged cross-sectional view showing a main part of a state where support blocks are stacked in the panel height direction.

FIG. 10 is a perspective view showing the vicinity of a positioning shaft insertion hole in a support block.

FIG. 11 is a sectional view showing a support bracket for supporting a support block.

FIG. 12 is a perspective view showing another form of the support bracket and the support block.

FIG. 13 is a perspective view showing a part of another embodiment of the support bracket and the lateral frame.

FIG. 14 is a front view showing a multi-screen type screen panel.

FIG. 15 is a cross-sectional view showing an upper end block for forming a screen panel.

FIG. 16 is a cross-sectional view showing a lower end block for forming a screen panel.

[Explanation of symbols]

10, 60 ... Optical fiber display device 12 ... Optical fiber 14 ... Input end face 16 ... Liquid crystal projector 18, 64 ... Screen panel 19A ... Frame-shaped cover 20 ... Support block 22A to 22D ... Positioning shaft insertion groove 24, 25 ... Positioning shaft 28A ... Upper end block 28B ... Lower end block 30 ... Tightening bracket 31A, 31B ... Fixed block 31C ... Sliding block 34 ... Tightening bolt 36 ... insertion groove 36A ... Expanded part 38 ... Optical fiber insertion hole 40 ... Fitting convex part 40B ... Insertion groove on convex side 42 ... Fitting recess 46 ... Bracket fitting recess 48 ... Support bracket 48A ... Mating surface 48B ... Arm part 48C ... Reinforcing piece 48D ... Mounting part 52 ... Vertical frame 54 ... Support frame 56 ... Horizontal frame 62 ... Sub-assembly panel

Continued front page    F term (reference) 2H046 AA03 AA08 AA32 AA42 AB01                       AC28 AD03                 5C058 AA06 AB06 BA23 BA35 EA04                       EA26 EA38                 5C094 AA03 AA14 AA43 AA47 AA48                       CA19 DA01 ED04 FA01 FA02

Claims (24)

[Claims] 1. The other end of the plurality of optical fibers supported by a screen panel at equal intervals, from which light constituting an image is incident from an input end face formed by assembling one end of the plurality of optical fibers. An optical fiber display device for forming a magnified image by light emitted from a section, wherein the screen panel has a plurality of support blocks of substantially the same shape stacked in the panel height direction, and
The support blocks are arranged side by side in the panel width direction, and each of the support blocks has a positioning shaft insertion hole formed through at least two positions in the panel width direction in the height direction, and the support blocks stacked in the height direction. A positioning shaft in the height direction is inserted into the positioning shaft insertion hole to position the stacked support blocks in at least the panel thickness direction, and at least one of the stacked support blocks in the height direction. A plurality of optical fiber insertion holes that are arranged in parallel in the panel width direction at equal pitches and that penetrate in the panel thickness direction are formed between adjacent support blocks, and the other end of the optical fiber is inserted there. An optical fiber display device characterized by being fixed. 2. The positioning shaft according to claim 1, wherein the size of the positioning shaft in the panel width direction is slightly smaller than the sizes of the positioning shaft and the positioning shaft insertion hole in the panel width direction and the thickness direction. An optical fiber display device characterized in that 3. The positioning shaft insertion hole according to claim 1, wherein the position and width in the panel width direction are provided between two adjacent optical fiber insertion holes in the panel width direction. And, the positioning shaft insertion hole and the positioning shaft are thin in the panel width direction,
An optical fiber display device having a long cross section in the panel thickness direction. 4. The supporting block according to claim 1, wherein the support block has a fitting projection for positioning on one surface in a panel height direction, and the fitting projection on the other surface. At the same position, there is a fitting concave portion that can be fitted to a fitting convex portion of a support block adjacent in the panel height direction, and the screen panel has the fitting convex portion of the support block adjacent in the panel height direction. An optical fiber display device, characterized in that the parts and the fitting recesses are sequentially fitted and stacked. 5. The support block according to claim 4, wherein a plurality of pairs of the fitting projections and the fitting recesses are provided in one support block at regular intervals in the panel width direction, and the support blocks are adjacent to each other in the panel height direction. An optical fiber display device, wherein one fitting convex portion and the other fitting concave portion are fitted with each other in a state of being displaced in the panel width direction. 6. The left and right end blocks for filling a step between two support blocks displaced in the panel width direction are provided at both end positions in the width direction of the screen panel according to claim 5, The right end block has a shape in which the support block is divided in the panel width direction, and a fitting convex portion and a fitting concave portion that fit with the fitting concave portion and the fitting convex portion of the supporting blocks adjacent in the panel height direction. An optical fiber display device comprising: 7. The optical fiber according to claim 4, wherein the fitting protrusion has a protrusion-side insertion groove that penetrates the fitting protrusion in the panel thickness direction in the panel width direction. The same number of insertion holes are formed at the same position as the insertion holes, and when the fitting projection is fitted into the fitting recess of the support block adjacent in the panel height direction, a part of the optical fiber insertion hole is formed. An optical fiber display device characterized by being configured as follows. 8. The recess-side insertion groove that penetrates the end face in the panel thickness direction at a depth at which the optical fiber can be inserted, at the end face of the support block on the side of the fitting recess in the support block. Is provided, the fitting concave portion and the fitting convex portion are fitted to each other, and the optical fiber insertion hole is formed by respective bottom portions of the concave portion side insertion groove and the convex portion side insertion groove. Fiber optic display device. 9. The recess according to claim 8, wherein the recess side insertion groove is
The optical fiber display device is characterized in that the end on the back side of the panel is formed wider than the end on the front side of the panel. 10. The optical fiber display device according to claim 8, wherein a bottom surface of the fitting recess is formed deeper than a bottom portion of the recess side insertion groove. 11. The method according to any one of claims 5 to 10,
An adhesive agent is applied between the fitted convex portion and the fitted concave portion, and the optical fiber to be inserted between the fitted convex portion and the fitted concave portion is coupled. Fiber optic display device. 12. The method according to any one of claims 1 to 11,
A bracket fitting recess that surrounds the positioning shaft insertion hole is formed continuously on one end surface in the panel height direction of the support block from the rear surface side in the panel thickness direction, and the bracket fitting recess has a panel width. A plurality of support brackets integrally provided with at least two fitting surface portions spaced apart in the direction, and an arm portion extending from the fitting surface portion to the back side of the screen panel, and the arm portions of the support brackets. And a support frame that is attached and supported on the back side of the screen panel, and a through hole that overlaps with the positioning shaft insertion hole is formed in the fitting surface portion of the support bracket when fitted into the bracket fitting recess. The positioning shaft is installed by penetrating the positioning shaft insertion hole and the through hole in the overlapping state. Optical fiber display apparatus characterized by being. 13. The method according to any one of claims 1 to 11,
A fitting surface part that is attached to one end surface of the support block in the panel height direction by insert molding and continuously surrounds at least two positioning shaft insertion holes from the rear surface side in the panel thickness direction, and the fitting surface part. A plurality of support brackets integrally provided with arm portions extending to the back side of the screen panel, and a support frame for mounting and supporting the arm portions of these support brackets on the back side of the screen panel. A through hole that overlaps with the positioning shaft insertion hole is formed in the fitting surface portion of the bracket, and the positioning shaft includes:
An optical fiber display device, wherein the positioning shaft insertion hole and the through hole in a state of being overlapped are attached so as to penetrate therethrough. 14. The surface of the bracket fitting surface portion and the one of the arm portions in the panel height direction according to claim 12 or 13, and a surface in the panel height direction on the bracket fitting recess side of the support bracket. An optical fiber display device characterized by being regarded as one. 15. The support frame according to claim 12, 13 or 14, wherein the support frame is long in the panel height direction and a plurality of the support frames are arranged side by side in the panel width direction, and the support bracket is provided on one side in the panel width direction of the arm portion. An optical fiber display device comprising: a reinforcing piece in a panel height direction, which is bent and extended at a right angle from an edge, and is connected to and supported by a side surface of the support frame at the reinforcing piece. 16. The reinforcing fiber portion of the support bracket according to claim 15, wherein the two optical fibers are inserted so that the panel width direction positions are adjacent to each other in the panel width direction when the support bracket is connected to the support block. An optical fiber display device, characterized in that it is arranged at an intermediate position of the hole. 17. The support frame according to claim 12, 13 or 14, wherein the support frames are long in a panel height direction and are arranged in a plurality in a panel width direction, and the support bracket is an edge of the arm portion on the back side of the panel. In the optical fiber display device, the support frame is connected to and supported by one end face of the support frame in the panel height direction. 18. The support bracket according to claim 12, wherein a plurality of the support brackets are fitted to the same one or a plurality of positioning shafts at different positions in the panel height direction. An optical fiber display device characterized in that 19. The method according to any one of claims 1 to 18,
On the positioning shaft, a protruding end portion is formed which penetrates a support block at an end portion that constitutes one edge in the height direction of the display panel and protrudes outward, and engages with the protruding end portion, and An optical fiber display device, characterized in that it is provided with a tightening fitting that abuts against a support block at an end, pulls the positioning shaft, and presses the support block as a reaction force thereof. 20. The optical fiber display device according to claim 19, further comprising a frame-shaped cover that covers front sides of upper and lower edges and left and right edges of the screen panel including the tightening fittings. 21. In any one of claims 1 to 18,
The upper and lower edges of the screen panel are composed of an upper end block and a lower end block obtained by dividing the support block in two in the panel height direction. The upper end block and the lower end block are adjacent to each other in the panel height direction. An optical fiber display device having a fitting concave portion and a fitting convex portion that fit into one and the other of the fitting convex portion and the fitting concave portion of the block, and the upper and lower end surfaces of the block are smooth surfaces. . 22. A large-screen screen panel according to claim 21, wherein the screen panel is a sub-assembly panel, and the smooth upper and lower end surfaces and the left and right end surfaces are in contact with each other to arrange a plurality of them. An optical fiber display device characterized in that 23. The input end face is formed for each of the sub-assembly panels, and image input means for inputting light forming an image is provided for each of the input end faces. Fiber optic display device. 24. The positioning shaft according to claim 22 or 23, wherein the positioning shaft insertion holes in the support blocks constituting the sub-assembly panel and the upper and lower end blocks are intermittently arranged in the panel width direction.
Moreover, the positioning shaft for the sub-assembly panel which is inserted in the range between the upper and lower end blocks in the panel height direction, and the positioning shaft for the sub-assembly panel is not inserted when the large screen screen panel is configured. An optical fiber display device comprising a positioning shaft for a large screen panel, which is inserted through the positioning shaft insertion hole in the entire range in the height direction thereof.