WO2018131158A1 - Multi-display system and drawing mechanism - Google Patents

Abstract

The purpose of the present invention is to provide a simple technique for making the joints between adjoining video display devices in a multi-display system inconspicuous. A multi-display system 100 comprises a plurality of LED display tiles 1a–1r, a frame structure 2, a position adjustment mechanism, and a drawing mechanism 31. Each LED display tile 1a–1r has a positioning hole. The position adjustment mechanism has a positioning pin that can move in the X direction or the Y direction. The positioning pin is provided at a position corresponding to a positioning hole. The position of each LED display tile 1a–1r may be adjusted in the X or Y direction by moving the positioning pin in the X or Y direction with the positioning pin inserted in the positioning hole.

Description

Multi-display system and drawer mechanism

The present invention relates to a multi-display system and a drawer mechanism that display a large-screen video information by arranging a plurality of video display devices in the vertical and horizontal directions.

Display tiles composed of a plurality of display elements such as LEDs are often used for outdoor and indoor advertising display, etc., thanks to the technological development and cost reduction of display elements. Until now, display devices including display tiles have been mainly used for displaying natural images and animation moving images. However, when used for indoor advertising display, etc., the viewing distance becomes shorter as the pixel pitch becomes narrower. Therefore, display devices equipped with display tiles are used for image display of personal computers such as conference rooms and surveillance applications. Has also been used. Particularly in surveillance applications, personal computer images close to still images are often displayed.

In addition, as a display device equipped with display tiles, a small LED display module formed by mounting an LED display element inside a cavity molded with ceramic or resin and then hardening it with a sealing resin is mounted on a substrate. SMD (Surface Mount Device: surface mount component) type is the mainstream. The SMD type display device has been used as a large image display device having a pixel pitch of 3 mm or more.

However, in recent years, with the background of cost reduction and high definition of LED display elements, large-scale images composed of a plurality of tiled LED display devices configured with high-density mounting products with a pixel pitch of 1 to 2 mm, etc. Display devices have been introduced into the market.

For example, Patent Document 1 and Patent Document 2 disclose constituent elements of an LED display device and a holding method thereof.

In Patent Document 1, a large video display device is configured by a multi-display system including a plurality of LED display tiles. On the small LED display module substrate, R, G, and B LED display elements are mounted up to the vicinity of the peripheral edge of the module substrate. In order to arrange the plurality of LED display module substrates in a square array to form the first LED display tile, the plurality of LED display module substrates are assembled into a support structure. Similar to the first LED display tile, the second LED display tile is also assembled into a support structure. The first LED display tile and the second LED display tile are assembled into a support structure in a state in which the first LED display tile and the second LED display tile are substantially in close contact with each other while maintaining a very small gap. For this very small gap, the same size as the pixel pitch is required.

In Patent Document 1 and Patent Document 2, the shape of the side surface of the LED display tile is processed into a planar shape. When a plurality of these LED display tiles are combined to form a large-screen video display device using a multi-display system, the LED display tiles are connected so that the side surfaces of the LED display tiles are substantially in close contact with each other.

Further, Patent Document 3 discloses a structure for connecting LED display tiles using a hook-type connecting member.

U.S. Pat. No. 8,384,616 Chinese Patent No. 10193630 Chinese Patent No. 203644333 Specification

The vertical and horizontal gaps between the LED display tiles and other adjacent LED display tiles, and the front and rear step in the LED display surface are suppressed to the same dimensions as the pixel pitch so that these gaps and steps are not noticeable. It is necessary to do. Further, since there is not enough space for working on the back side of the video display device, it is necessary to adjust the position of the video display device so that these gaps and steps are not conspicuous from the video display surface side.

In Patent Document 1, each LED display tile is supported by a mounting structure so that the arrangement thereof is not impaired. The mounting structure is arranged so that the gap between the LED display tile and the LED display tile adjacent in the vertical direction and the horizontal direction has the same size as the pixel pitch. However, since the side surface of the LED display tile is formed in a plane, other LED adjacent to the LED display tile is caused by mechanical accuracy such as dimensional tolerance or flatness of the support structure holding the LED display tile. There was a problem that the gap between the display tiles varied.

In Patent Document 2, the LED display module substrate is attached to the LED base component, and the housing frame component and the joint component are attached to the back surface of the LED base component. And the LED display tile comprised from these members has a substantially planar side surface. In Patent Document 2, as in Patent Document 1, when a plurality of LED display tiles are arranged in the vertical direction and the horizontal direction, there is a problem that the gap between the LED display tile and another adjacent LED display tile varies. It was.

Further, in Patent Document 3, since the LED display tiles are connected to each other using a hook-type connecting member, high-precision alignment is required when the LED display tiles are connected in the left-right direction. Therefore, there is a problem that it takes a considerable time to align the LED display tiles.

As described above, in the structures described in Patent Documents 1 to 3, due to variations in the processing dimensions of the structural parts of the metal casing constituting the LED display tile or warping of the LED display module substrate, other adjacent LED display tiles may be used. There was a problem that a gap with the LED display tile and a step in the front-rear direction of the LED display surface occurred. Such gaps and steps are recognized as joints, that is, joints between LED display tiles and other adjacent LED display tiles due to changes in luminance or directivity, and the quality of the image deteriorates. It was a factor.

Therefore, an object of the present invention is to provide a technique that can easily make the joint between a video display device and another adjacent video display device inconspicuous in a multi-display system.

A multi-display system according to the present invention includes a plurality of video display devices, a frame structure that supports the back surfaces of the video display devices, a frame structure, and a position of each of the video display devices. A position adjusting mechanism that can be adjusted in the left-right direction or the up-down direction; a storage position that is provided in the frame structure and is a position for fixing the video display device and the frame structure; and the storage position Each of the video display devices, and each of the video display devices has a positioning hole, and the position adjustment mechanism can be It has a positioning pin that can move in the vertical direction, the positioning pin is provided at a position corresponding to the positioning hole, and the positioning pin is inserted into the positioning hole. By moving in the lateral direction or vertical direction in a state, and adjusts the position of each of the image display device in the horizontal direction or the vertical direction.

According to the present invention, the multi-display system includes a plurality of video display devices, a frame structure, a position adjustment mechanism, and a drawing mechanism, each video display device has a positioning hole, and the position adjustment mechanism is , Has a positioning pin that can move in the left-right direction or up-down direction, the positioning pin is provided at a position corresponding to the positioning hole, and the positioning pin is moved in the left-right direction or the up-down direction while being inserted into the positioning hole Then, the position of each video display device is adjusted in the horizontal direction or the vertical direction.

Therefore, the user can access the position adjustment mechanism not only in a state where each video display device is positioned at the fixed position but also in a state where each video display device is moved to the pull-out position by the drawer mechanism. The position adjustment mechanism can be accessed from either the video display surface side or the back surface side of the display device. Thereby, the position of each image display device is adjusted from either the image display surface side or the back side of each image display device, and the joint between the image display device and another adjacent image display device is easily noticeable. Can be eliminated.

The objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

1 is a perspective view of a multi-display system according to an embodiment. It is a perspective view of a LED display tile. It is a principal part perspective view of a frame structure. It is a rear perspective view of an LED display tile. It is the A section enlarged view of FIG. It is a perspective view of the position adjustment mechanism and corner joint provided in the frame structure. It is a back perspective view of the position adjustment mechanism and corner joint provided in the frame structure. It is a side view which shows the fixed state of a LED display tile and a frame structure. It is a side view which shows the state by which the fixed state of the LED display tile and the frame structure was cancelled | released. It is a principal part perspective view of the frame structure provided with the drawer mechanism. It is a perspective view of a position adjustment jig.

<Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a multi-display system 100 according to an embodiment. FIG. 2 is a perspective view of the LED display tile 1f. FIG. 3 is a perspective view of a main part of the frame structure 2.

As shown in FIG. 1, the multi-display system 100 includes a plurality of LED display tiles 1a to 1r, a frame structure 2, and a mount 3. The LED display tiles 1a to 1r correspond to an image display device.

The multi-display system 100 further includes a position adjustment mechanism, a drawer mechanism 31 (see FIG. 10), a magnet jig 301 (see FIGS. 8 and 9), and a position adjustment jig 401 (see FIG. 11). . Details of these will be described later.

The multi-display system 100 is configured by arranging, for example, 18 LED display tiles 1a to 1r on the gantry 3 in the vertical direction and the horizontal direction. More specifically, three LED display tiles 1a to 1r are arranged in the vertical direction and six in the horizontal direction. Since the 18 LED display tiles 1a to 1r have the same configuration, the LED display tile 1f will be described here.

As shown in FIG. 2, the LED display tile 1 f includes four LED module substrates 4 and an LED base 5. The four LED module substrates 4 are arranged two in the vertical direction and two in the left-right direction. On each of the four LED module substrates 4, a plurality of LEDs as display elements are arranged in a square array. The LED base 5 is fixed to the back surface of the four LED module substrates 4. The LED base 5 is configured using aluminum or magnesium alloy which is a non-magnetic material. The four LED module substrates 4 are accurately positioned with respect to the LED base 5 and are arranged and fixed so that the joint between the LED module substrate 4 and another adjacent LED module substrate 4 is not conspicuous. .

As shown in FIGS. 2 and 3, the frame structure 2 is connected to the back surfaces of the LED display tiles 1a to 1r, more specifically, to the back surface of the LED base 5 via corner joints 9, 10, 11, and 12. The back surfaces of the LED display tiles 1a to 1r are supported. The frame structure 2 is configured using aluminum which is a nonmagnetic material. The frame structure 2 is configured by assembling two back frames 102 and 103 having a rectangular frame shape back and forth. The back frame 102 and the back frame 103 are fixed by a plurality of frames 102 e extending in the front-rear direction (hereinafter also referred to as “Z direction”). The frame 102e is disposed at a position corresponding to the four corners of the LED display tiles 1a to 1r.

Next, the back frame 102 will be described. As shown in FIG. 3, the back frame 102 is a front frame, and extends in the left-right direction (hereinafter also referred to as “X direction”) and in the vertical direction (hereinafter also referred to as “Y direction”). A frame 102b is provided.

Next, the back frame 103 will be described. The back frame 103 is a rear frame, and includes a frame 103a extending in the X direction and a frame 103b extending in the Y direction.

Further, an LED display driving circuit and a power source are accommodated in the LED base 5 constituting the back surface of the LED display tiles 1a to 1r. Since these are the same as the conventional configuration, the details thereof will be described. Is omitted.

As shown in FIG. 3, the frame structure 2 is provided with position adjusting portions 7 and 8 having positioning pins 6a and 6b, respectively. Further, as described above, the frame structure 2 is firmly connected by the corner joints 9, 10, 11, and 12. The corner joints 9, 10, 11, and 12 have the role of frame connection and the function of adjusting the position of the LED display tiles 1a to 1r in the Z direction, thereby reducing the number of parts and the manufacturing cost. .

The position adjusting units 7 and 8 are both provided at positions corresponding to the LED display tiles 1a to 1r in the frame structure 2. The position adjusting unit 7 is provided at a position corresponding to the lower left corner of each of the LED display tiles 1a to 1r in the frame structure 2. The position adjustment unit 8 is provided at a position corresponding to the lower right corner of each LED display tile 1a to 1r in the frame structure 2.

Next, the back structure of the LED display tiles 1a to 1r will be described. FIG. 4 is a rear perspective view of the LED display tile 1a. Since the 18 LED display tiles 1a to 1r have the same configuration, the LED display tile 1a will be described here.

As shown in FIG. 4, a fixing hole 14 is provided in the left side portion of the lower end portion of the back surface of the LED display tile 1a, and a long hole 15 is provided in the right side portion of the lower end portion of the back surface of the LED display tile 1f. Note that both the fixing hole 14 and the elongated hole 15 correspond to positioning holes. More specifically, the fixing hole 14 corresponds to a first positioning hole, and the elongated hole 15 corresponds to a second positioning hole.

The hook metal plate 17 is provided on the left side and the right side below the upper end of the back surface of the LED display tile 1a. A locking metal plate 36 having a groove 38 is provided in the periphery of the right hook metal plate 17 on the back surface of the LED display tile 1a. Similarly, a locking metal plate having a groove is also provided in the periphery of the left hook metal plate 17 on the back surface of the LED display tile 1a.

A locking metal plate 16 having a groove 18 is provided around the long hole 15 on the back surface of the LED display tile 1a. Similarly, a locking metal plate having a groove is also provided in the periphery of the fixing hole 14 on the back surface of the LED display tile 1a.

Next, a structure for attaching the LED display tile 1a to the frame structure 2 will be described. FIG. 5 is an enlarged view of a portion A in FIG. As shown in FIG. 5, the corner joint 9 includes a locking portion 22, an adjustment sheet metal 23, and a screw 203. The adjustment sheet metal 23 has a bent portion at the rear end portion, and is formed in an L shape in a side view. The locking portion 22 is provided so as to protrude upward from the front end portion of the adjustment metal plate 23. The screw 203 is fixed to the adjustment sheet metal 23 from above.

The position adjusting unit 7 includes a positioning pin 6a, a base metal plate 21, screw mounting portions 21a and 202a, an X position adjusting metal plate 20, a Y position adjusting metal plate 19, and adjusting screws 201 and 202. As shown in FIGS. 4 and 5, the positioning pin 6 a is provided at a position corresponding to the fixing hole 14, and is formed so as to be fitted into the fixing hole 14. As a result, the positioning pin 6 a is fitted into the fixing hole 14. Moreover, the latching | locking part 22 fits with the groove | channel of the latching metal plate provided in the peripheral part of the fixing hole 14 in the back surface of the LED display tile 1a. The positioning pin 6a corresponds to a first positioning pin.

FIG. 6 is a perspective view of the position adjusting unit 8 and the corner joint 10 provided in the frame structure 2. The corner joint 10 includes a locking portion 26, an adjustment sheet metal 27, and a screw 206. The adjustment sheet metal 27 has a bent portion at the rear end portion and is formed in an L shape in a side view. The locking portion 26 is provided so as to protrude upward from the front end portion of the adjustment metal plate 27. The screw 206 is fixed to the adjustment sheet metal 27 from above.

The position adjustment unit 8 includes a positioning pin 6b, a base sheet metal 25, a Y position adjustment sheet metal 24, and adjustment screws 204 and 205. The positioning pin 6 b is provided at a position corresponding to the long hole 15 and is formed so as to be loosely fitted in the long hole 15. More specifically, the long hole 15 is a long hole whose longitudinal direction is the X direction. The positioning pin 6 b is loosely fitted in the long hole 15 and can move in the X direction in the long hole 15. Moreover, the latching | locking part 26 fits with the groove | channel 18 of the latching metal plate 16 provided in the peripheral part of the long hole 15 in the back surface of the LED display tile 1a. The positioning pin 6b corresponds to a second positioning pin.

As shown in FIGS. 2 and 4, the hooking metal plate 17 is hooked on the receiving metal 13 fixed at a position corresponding to the upper end portion of the LED display tile 1 a in the frame structure 2, so that the back surface of the LED display tile 1 a is The structure is supported by the frame structure 2. As described above, the LED display tile 1a can be attached to the frame structure 2 by the structure described above.

Further, the locking metal plate 36 is locked to the locking portion 26, and the locking metal plate provided in the peripheral portion of the left hook metal plate 17 on the back surface of the LED display tile 1 a is locked to the locking portion 22. Thus, the LED display tile 1a and the frame structure 2 are in a fixed state.

Next, a method for adjusting the position of the LED display tile 1a in the XY direction with respect to the frame structure 2 will be described. The position adjustment in the XY direction is performed after the LED display tile 1a is attached to the frame structure 2.

First, the movement of the positioning pins 6a and 6b in the X direction will be described. As shown in FIG. 5, the position adjustment unit 7 includes a positioning pin 6 a, a base sheet metal 21, screw mounting parts 21 a and 202 a, an X position adjustment sheet metal 20, a Y position adjustment sheet metal 19, and adjustment screws 201 and 202. . The base metal plate 21 is fixed to the front side of the back frame 102 of the frame structure 2. The base metal plate 21 is erected so that the main surface thereof faces in the X direction, and the screw mounting portion 21 a is erected at a position facing the main surface of the base metal plate 21 in the X position adjusting metal plate 20. The positioning pin 6 a is fixed to a Y position adjustment sheet metal 19 erected on the X position adjustment sheet metal 20. The positioning pin 6a is disposed so that the tip portion faces forward.

The adjustment screw 201 is attached to the base metal plate 21 and the screw attachment portion 21a from the right side. Since the base metal plate 21 is fixed to the rear frame 102, the screw mounting portion 21 a and the X position adjusting metal plate 20 move in the X direction with respect to the base metal plate 21 by turning the adjusting screw 201. As the X position adjusting sheet metal 20 moves in the X direction, the positioning pin 6a also moves in the X direction.

Since the positioning pin 6a is fitted in the fixing hole 14, when the positioning pin 6a moves in the X direction, the LED display tile 1a also moves in the X direction. Since the positioning pin 6b is loosely fitted to the elongated hole 15, movement adjustment in the X direction can be performed by the margin of the elongated hole 15. The adjustment screw 201 corresponds to a second adjustment screw that adjusts the positions of the positioning pins 6a and 6b in the X direction.

Next, the movement of the positioning pins 6a and 6b in the Y direction will be described. The adjustment screw 202 is attached to the screw attachment portion 202a fixed to the back frame 102 of the frame structure 2 from above. The adjustment screw 202 is also attached to a screw attachment portion 19 a provided at the upper end portion of the Y position adjustment sheet metal 19.

Rotating the adjusting screw 202 moves the Y position adjusting sheet metal 19 in the Y direction with respect to the screw mounting portion 202a. When the Y position adjusting sheet metal 19 moves in the Y direction, the positioning pin 6a also moves in the Y direction.

As shown in FIG. 6, since the structure related to the movement of the positioning pin 6b in the Y direction in the position adjusting unit 8 is the same as that in the position adjusting unit 7, the positioning pin 6b is also rotated in the Y direction by turning the adjusting screw 205. Move to.

Since the positioning pin 6a is fitted in the fixing hole 14, when the positioning pin 6a moves in the Y direction, the LED display tile 1a also moves in the Y direction. The positioning pin 6b is loosely fitted with the long hole 15. However, since the long hole 15 is a long hole whose longitudinal direction is the X direction, the LED display tile 1a is also Y when the positioning pin 6b moves in the Y direction. Move in the direction. The adjustment screws 202 and 205 correspond to third adjustment screws that adjust the positions of the positioning pins 6a and 6b in the Y direction, respectively.

Further, by adjusting the rotational speed of the adjusting screws 202 and 205, that is, by making the rotational speeds of the adjusting screws 202 and 205 different from each other, the rotational direction on the XY plane can be adjusted.

Next, a method for adjusting the position of the LED display tile 1a in the Z direction with respect to the frame structure 2 will be described. The position adjustment in the Z direction is performed after the LED display tile 1a is attached to the frame structure 2.

FIG. 7 is a rear perspective view of the position adjusting unit 8 and the corner joint 10 provided in the frame structure 2. The corner joint 10 includes a base metal plate 27, a locking portion 26, and adjustment screws 206 and 207. The base metal plate 27 has a bent portion at the rear end, and is formed in an L shape in a side view. On the front side of the rear end portion of the base metal plate 27, a screw attachment portion 207a fixed to the back frame 102 of the frame structure 2 is disposed. The adjustment screw 207 is attached to the base metal plate 27 and the screw attachment portion 207a from the rear.

Rotating the adjusting screw 207 moves the base sheet metal 27 in the Z direction with respect to the screw mounting portion 207a. Thereby, the LED display tile 1a moves to a Z direction because the latching | locking part 26 fitted to the groove | channel 18 provided in the latching metal plate 16 moves to a Z direction.

The adjustment screw 207 corresponds to a first adjustment screw that adjusts the position of the locking portion 26 in the Z direction.

Further, since the corner joints 9, 11, and 12 have the same mechanism as the corner joint 10, the position of the entire LED display tile 1a in the Z direction can be adjusted. Here, the position adjustment units 7 and 8 and the corner joints 9, 10, 11, and 12 correspond to a position adjustment mechanism.

Depending on the installation environment of the LED display tiles 1a to 1r, there is not enough space to work on the back side of the multi-display system 100, so LED display is performed from the video display surface side of the multi-display system 100 during installation and maintenance. There is a case where the drawing work of the tiles 1a to 1r is required. Note that the video display surface side of the multi-display system 100 is the front surface side of the multi-display system 100.

Next, a method for releasing the fixed state of the LED display tiles 1a to 1r and the frame structure 2 from the video display surface side will be described with reference to FIGS. However, when it is necessary to pull out the LED display tiles 1a to 1r from the video display surface side, the catching sheet metal 17 (see FIG. 4) is previously removed from the back surface of the LED display tiles 1a to 1r.

FIG. 8 is a side view showing a fixed state of the LED display tile 1a and the frame structure 2. As shown in FIG. FIG. 9 is a side view showing a state where the fixed state between the LED display tile 1a and the frame structure 2 is released. In addition, although the structure of the right part of the back surface of LED display tile 1a is demonstrated, the structure of the left part is the same as that of the right part.

The locking metal plate 36 is provided at a position corresponding to the locking portion 26 on the back surface of the LED display tile 1a. The locking metal plate 36 can be rotated around a screw 29 as a rotation shaft, and can be locked to the locking portion 26. The locking metal plate 36 is configured using a nonmagnetic material. The locking metal plate 36 is configured to be biased in the direction of locking with the locking portion 26 and to rotate in a direction opposite to the direction of locking with the locking portion 26 by the magnetic force of the magnet jig 301. ing. Here, the direction of locking with the locking portion 26 is the direction of arrow C in FIG. 8, and the direction opposite to the direction of locking with the locking portion 26 is the direction of arrow F in FIG.

At the periphery of the locking sheet metal 36 on the back surface of the LED display tile 1a, a steel sheet attracting sheet metal 28, which is a magnetic material, is provided. The locking metal plate 36 includes a contact portion 37 that contacts the tip end portion of the pulling metal plate 28 and a groove 38 that can be locked to the locking portion 26.

The locking metal plate 36 is always subjected to a rotational force in the direction of arrow C by the spring force around the screw 29 to which the spring is attached. The contact portion 37 of the locking metal plate 36 is in contact with the tip portion of the pulling metal plate 28. With the LED display tile 1 a mounted on the frame structure 2, the latching metal plate 36 is rotated in the direction of the arrow C by the spring force, and the contact portion 37 pushes back the tip of the pulling metal plate 28 to pull it. The tip of the attached metal plate 28 is rotated in the direction of arrow D. Thereby, the drawing sheet metal 28 is fixed at the position shown in FIG. In this way, the locking metal plate 3 is supported in a state where it can rotate about the screw 29 in the direction of the arrow C, and the attracting metal plate 28 is supported so as to be rotatable about the screw 30 in the direction of the arrow D. Has been.

As shown in FIG. 8, the locking metal plate 36 is locked in a state where the magnet jig 301 is disposed at a position away from the image display surface of the LED display tile 1a and the LED display tile 1a is positioned at the storage position. By engaging with the portion 26, the LED display tile 1a and the frame structure 2 are in a fixed state.

As shown in FIG. 9, when the magnet jig 301 is close to the image display surface of the LED display tile 1a, the steel sheet attracting sheet metal 28 is rotated in the direction of arrow E in FIG. Move. Since the turning force of the pulling metal plate 28 becomes larger than the spring force of the spring attached to the screw 29 of the locking metal plate 36, the locking metal plate 36 rotates in the direction of arrow F as shown in FIG. The groove 38 of the locking metal plate 36 is disengaged from the locking portion 26 of the corner joint 12, and the fixed state between the LED display tile 1a and the frame structure 2 is released.

At this time, since the LED base 5 (see FIG. 2) constituting the back surface of the LED display tile 1a is formed of a non-magnetic material, it is not affected by the magnetic force even when the magnet jig 301 is brought close to the LED display tile 1a. Only the sheet metal 28 is affected by the magnetic force.

Further, the locking metal plate 36 can be configured using a steel plate made of a magnetic material. In this case, the drawing sheet metal 28 becomes unnecessary. As shown in FIG. 9, when the magnet jig 301 is close to the image display surface of the LED display tile 1a, the steel plate locking plate 36 is rotated in the direction of the arrow F in FIG. Move. As the rotational force of the locking metal plate 36 becomes larger than the spring force of the spring attached to the screw 29, the locking metal plate 36 rotates in the direction of arrow F as shown in FIG. The groove 38 is disengaged from the engaging portion 26 of the corner joint 12, and the fixed state between the LED display tile 1a and the frame structure 2 is released.

Thereby, only the locking sheet metal 36 needs to be rotated, and the magnetic force of the magnet jig 301 can be made smaller than when the attracting sheet metal 28 and the locking sheet metal 36 are rotated. Further, it is possible to adopt a configuration in which the attracting sheet metal 28 is omitted, and the manufacturing cost of the multi-display system 100 can be reduced.

With the above configuration, the LED display tile 1a and the frame structure 2 are released from the fixed state from the video display surface side during installation and maintenance without being affected by the installation environment on the back side of the multi-display system 100. Is possible. On the other hand, by moving the magnet jig 301 away from the image display surface side, the spring force of the spring attached to the screw 29 of the locking metal plate 36 or the spring force of the spring attached to the screw 30 of the pulling metal plate 28 is used. The fixed state of the LED display tile 1a and the frame structure 2 can be restored. Thereby, in the multi-display system 100, space saving can be achieved without requiring a back space.

Next, the drawing mechanism 31 will be described with reference to FIGS. 10 and 11. FIG. 10 is a perspective view of a main part of the frame structure 2 provided with the drawer mechanism 31 and is a view showing a state in which the LED display tile 1a is moved to the video display surface side. FIG. 11 is a perspective view of the position adjustment jig 401.

As shown in FIG. 10, the drawer mechanism 31 is provided on the left and right sides of the frame structure 2, and includes a guide portion 31a and a movable portion 31b. The guide portion 31 a is formed so as to extend in the Z direction, and is provided on the lower side of the receiving fitting 13 in the frame structure 2. The movable part 31b has a bent part at the front end part, and is formed in an L shape in a side view. Moreover, the movable part 31b is comprised using the steel plate of a magnetic material. The back surface of the LED display tile 1a is fixed to the front end portion of the movable portion 31b.

Since the horizontal portion of the movable portion 31b is attached to a rail provided along the longitudinal direction of the guide portion 31a, the movable portion 31b is movable in the Z direction along the rail of the guide portion 31a. Thereby, the drawer mechanism 31 moves the LED display tile 1a between the storage position that is a position for fixing the LED display tile 1a and the frame structure 2 and the drawer position that is a position ahead of the storage position. It can be moved.

The user releases the fixed state between the LED display tile 1a and the frame structure 2 with the magnet jig 301, and then slowly pulls the magnet jig 301 forward, thereby moving the LED display tile 1a to the video display surface side. It is possible to make it. When the user returns from the pull-out position to the storage position by the pull-out mechanism 31, the positioning pin 6 a is fitted into the fixing hole 14, and the positioning pin 6 b is loosely fitted into the long hole 15, thereby the position of the LED display tile 1 a. Can be accurately reproduced at the original position. That is, the LED display tile 1a can be restored to the adjusted position.

Next, a method for adjusting the position of the LED display tile 1a when there is not enough space to work on the back side of the LED display tile 1a will be described. The position adjustment of the LED display tile 1a is performed in a state in which the LED display tile 1a is fixed to the frame structure 2 and the joint width of the LED display tiles 1b and 1g adjacent to the LED display tile 1a is increased and decreased by the gap between the front and rear. It is necessary to carry out while checking the variation. Therefore, after the LED display tile 1a is pulled out to the pull-out position and the position adjustment jig 401 is installed, it is necessary to return the pull-out mechanism 31 to the storage position and adjust the position of the LED display tile 1a.

As shown in FIG. 11, the position adjustment jig 401 includes a main body 32, a rotary shaft tip 33, and a protrusion 34. The rotating shaft tip 33 is provided at the front end of the main body 32 and rotates by driving a motor housed in the main body 32. The rotary shaft tip 33 is configured to be fitted to the heads of the screws 201, 202, and 207, and rotates the screws 201, 202, and 207 by rotating itself by remote operation. More specifically, the position adjusting jig 401 is configured to be able to adjust the rotational speed of the rotary shaft tip portion 33 by a remote operation such as a remote controller.

Rotating shaft tip 33 is fitted to adjustment screw 201 for adjusting in the X direction shown in FIG. Further, the rotating shaft tip 33 of another position adjusting jig 401 is fitted to an adjusting screw 202 for adjusting in the Y direction shown in FIG. Further, the rotating shaft tip 33 of another position adjusting jig 401 is fitted to an adjusting screw 207 for adjusting in the Z direction shown in FIG. Similarly, the rotary shaft tip 33 of the position adjusting jig 401 is fitted to the other adjustment screws.

The user rotates the rotary shaft tip 33 by remote control such as a remote controller and rotates the adjustment screws 201, 202, 205, 207, etc., so that the position of the LED display tile 1a is set in the X direction, the Y direction, and Adjust in the Z direction. Thereby, the position of the LED display tile 1a can be adjusted at the storage position.

Further, as shown in FIG. 5, the back frame 102 of the frame structure 2 is provided with a frame groove 35 extending in the longitudinal direction. The protrusion 34 of the position adjustment jig 401 is configured to be inserted into the frame groove 35. By moving the LED display tile position adjusting jig 401 with the projection 34 inserted in the frame groove 35, there is not enough space on the back side of the LED display tile 1a to move the LED display tile 1a. Even when it is difficult to see the back of the rotating shaft, it is easy to fit the rotary shaft tip 33 of the position adjusting jig 401 to the adjusting screws 201, 202, 205, 207, and the like.

In the embodiment, the multi-display system 100 having an 18-plane configuration has been described as an example. However, in the case of a multi-display system having a larger number of LED display tiles, the same assembly adjustment can be performed. . Even if the multi-display system is large, the joint can be adjusted, so that the quality of the image can be maintained.

As described above, the multi-display system 100 according to the embodiment includes the plurality of LED display tiles 1a to 1r, the frame structure 2, the position adjustment mechanism, and the drawer mechanism 31, and each LED display tile 1a to 1r. 1r has a positioning hole, the position adjustment mechanism has a positioning pin that can move in the X direction or the Y direction, the positioning pin is provided at a position corresponding to the positioning hole, By moving in the X direction or the Y direction in the inserted state, the positions of the LED display tiles 1a to 1r are adjusted in the X direction or the Y direction.

Therefore, the user accesses the position adjustment mechanism not only in a state where the LED display tiles 1a to 1r are positioned at the fixed positions but also in a state where the LED display tiles 1a to 1r are moved to the extraction positions by the drawer mechanism 31. Therefore, the position adjustment mechanism can be accessed from either the image display surface side or the back surface side of each of the LED display tiles 1a to 1r. As a result, the positions of the LED display tiles 1a to 1r can be adjusted from either the image display surface side or the back surface side of the LED display tiles 1a to 1r, and the other LED display tiles adjacent to the LED display tile can be easily adjusted. The joints between can be made inconspicuous.

The drawer mechanism 31 includes a guide portion 31a fixed to the frame structure 2 and a movable portion 31b movable along the guide portion 31a. The movable portion 31b is provided on the back surface of each LED display tile 1a to 1r. Attached. Therefore, the drawer mechanism 31 can be realized with a simple configuration.

The multi-display system 100 further includes a magnet jig 301, and the frame structure 2 is provided with a locking portion 26. The multi-display system 100 can be rotated around a rotation axis on the back surface of each LED display tile 1a to 1r. And the latching metal plate 36 comprised so that the latching | locking part 26 and latching are possible is provided. The locking metal plate 36 is configured to be biased in the direction of locking with the locking portion 26 and to rotate in a direction opposite to the direction of locking with the locking portion 26 by the magnetic force of the magnet jig 301. ing. When the magnet jig 301 is disposed at a position away from the image display surfaces of the LED display tiles 1a to 1r, and the LED display tiles 1a to 1r are positioned at the storage positions, the locking metal plate 36 is locked. By engaging with the LED 26, the LED display tiles 1a to 1r and the frame structure 2 are fixed. The magnet jig 301 is disposed at a position close to the image display surface of each of the LED display tiles 1a to 1r, and is opposite to the direction in which the locking metal plate 36 is locked to the locking portion 26 by the magnetic force of the magnet jig 301. By rotating in the direction, the fixed state of the LED display tiles 1a to 1r and the frame structure 2 is released.

Therefore, the LED display tiles 1a to 1r can be fixed and released from the video display surface side during installation and maintenance without being affected by the installation environment on the back side of the LED display tiles 1a to 1r. Moreover, since it is also possible to install so as to eliminate a gap between the wall on which the multi-display system 100 is installed and the back side of the frame structure 2, space saving of the multi-display system 100 can be realized.

The position adjustment mechanism is configured so that the positions of the LED display tiles 1a to 1r can be further adjusted in the Z direction, and each of the LED display tiles 1a to 1r is moved in the Z direction with the locking portion 26 locked to the locking metal plate 36, In order to adjust the positions of the LED display tiles 1a to 1r in the Z direction, the positions of the LED display tiles 1a to 1r are adjusted in the Z direction from either the video display surface side or the back side of the LED display tiles 1a to 1r. Thus, the joint between the LED display tile and another adjacent LED display tile can be easily made inconspicuous.

There are a plurality of positioning holes and positioning pins, the plurality of positioning holes are a fixing hole 14 and a long hole 15, and the long hole 15 is a long hole whose longitudinal direction is the left-right direction. The plurality of positioning pins are provided at positions corresponding to the fixing holes 14 and can be fitted into the fixing holes 14, and positioning provided at positions corresponding to the long holes 15 and can be loosely fitted into the long holes 15. Pin 6b. In the storage position, the positioning pin 6 a is fitted into the fixing hole 14, and the positioning pin 6 b is loosely fitted into the long hole 15.

Therefore, when the user returns from the pulling position to the storing position by the pulling mechanism 31, the positioning pin 6a is fitted into the fixing hole 14, and the positioning pin 6b is loosely fitted into the long hole 15, whereby the LED display tile 1a. Can be restored to the adjusted position.

The multi-display system 100 is provided in each of a plurality of frames 102a and 102b constituting the frame structure 2 and the rotating shaft tip 33 that rotates the adjusting screw 207, the adjusting screw 201, or the adjusting screws 202 and 205 by remote control. Further, a position adjusting jig 401 having a protrusion 34 that can be inserted into the frame groove 35 is further provided. By rotating the adjustment screw 207, the adjustment screw 201, or the adjustment screws 202 and 205 by the rotating shaft tip 33 with the projection 34 inserted into the frame groove 35, the positions of the LED display tiles 1a to 1r are moved in the Z direction. , Adjust in X direction or Y direction.

Therefore, even when it is difficult to see the back of the LED display tiles 1a to 1r because there is not enough space on the back side of the LED display tiles 1a to 1r, the projection 34 of the position adjusting jig 401 is inserted into the frame groove 35. By moving the position adjustment jig 401, the rotary shaft tip 33 of the position adjustment jig 401 can be easily fitted to the adjustment screws 201, 202, 205, and 207.

Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

In the present invention, the embodiments can be appropriately modified or omitted within the scope of the invention.

1a to 1r LED display tile, 2 frame structure, 6a and 6b positioning pins, 7 and 8 position adjustment part, 14 fixed hole, 15 long hole, 26 locking part, 31 drawer mechanism, 31a guide part, 31b movable part, 33 Rotating shaft tip, 34 protrusion, 35 frame groove, 36 locking sheet metal, 100 multi-display system, 201, 202, 205, 207 adjusting screw, 301 magnet jig, 401 position adjusting jig.

Claims (7)

A plurality of video display devices;
A frame structure that supports the back surfaces of the plurality of video display devices;
A position adjustment mechanism provided in the frame structure and capable of adjusting the position of each of the video display devices in the horizontal direction or the vertical direction;
Between each of a storage position that is provided in the frame structure and is a position for fixing each of the video display devices and the frame structure, and a drawer position that is a position in front of the storage position A drawer mechanism capable of moving the video display device;
With
Each of the video display devices has a positioning hole,
The position adjustment mechanism has a positioning pin that can move in the left-right direction or the up-down direction,
The positioning pin is provided at a position corresponding to the positioning hole,
A multi-display system that adjusts the position of each video display device in the left-right direction or the up-down direction by moving the positioning pins in the left-right direction or the up-down direction while being inserted into the positioning hole. The drawer mechanism has a guide part fixed to the frame structure, and a movable part movable along the guide part,
The multi-display system according to claim 1, wherein the movable part is attached to a back surface of each of the video display devices. The multi-display system further includes a magnet jig,
A locking portion is provided on the frame structure,
A locking metal plate configured to be rotatable around a rotation axis and configured to be locked with the locking portion is provided on the back surface of each video display device,
The locking metal plate is biased in a direction of locking with the locking portion, and is configured to rotate in a direction opposite to the direction of locking with the locking portion by the magnetic force of the magnet jig. ,
The locking plate is engaged with the locking portion in a state in which the magnet jig is disposed at a position separated from the video display surface of each video display device and each video display device is positioned at the storage position. By stopping, each video display device and the frame structure are in a fixed state,
The magnet jig is disposed at a position close to the video display surface of each video display device, and the direction opposite to the direction in which the locking metal plate is locked with the locking portion by the magnetic force of the magnet jig. The multi-display system according to claim 2, wherein the fixed state between each of the video display devices and the frame structure is released by rotating the video display device. The position adjustment mechanism is configured to further adjust the position of each video display device in the front-rear direction,
The multi-display system according to claim 3, wherein the position of each of the video display devices is adjusted in the front-rear direction by moving the engagement portion in the front-rear direction while being engaged with the engagement metal plate. The positioning holes and the positioning pins are both plural,
The plurality of positioning holes are a first positioning hole and a second positioning hole,
The second positioning hole is a long hole whose longitudinal direction is the left-right direction,
The plurality of positioning pins are provided at positions corresponding to the first positioning holes and at positions corresponding to the first positioning pins that can be fitted into the first positioning holes and the second positioning holes. And a second positioning pin that can be loosely fitted into the second positioning hole,
The multi of claim 4, wherein the first positioning pin is fitted into the first positioning hole and the second positioning pin is loosely fitted into the second positioning hole in the storage position. Display system. The position adjustment mechanism includes a first adjustment screw that adjusts the position of the locking portion in the front-rear direction, and a second adjustment that adjusts the positions of the first positioning pin and the second positioning pin in the left-right direction. A screw and a third adjustment screw for adjusting the positions of the first positioning pin and the second positioning pin in the vertical direction;
The multi-display system is inserted into a rotary shaft tip for rotating the first, second or third adjusting screw by remote control and a frame groove provided in each of a plurality of frames constituting the frame structure. And a position adjusting jig having a projecting portion capable of
By rotating the first, second or third adjusting screw by the tip of the rotating shaft in a state where the protrusion is inserted into the frame groove, the position of each video display device is changed in the front-rear direction, the left-right direction or The multi-display system according to claim 5, wherein the multi-display system is adjusted in a vertical direction. A drawer mechanism provided in the multi-display system according to any one of claims 1 to 6.

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