JPH11249584A - Mounting structure of display panel in picture display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembling/disassembling by enabling a display panel consisting of LED units arranged as pixels to be attachable and detachable to/from both the front side and rear side. SOLUTION: This is a mounting structure for mounting a display panel 1 with LEDs 2 arranged on the front surface on a mounting plate 2 of picture display to be attachable and detachable by rotary screws. In the above arrangement, the rear face of the display panel 1 and the front face of the mounting plate 2 are arranged to be abutted on each other, and the display panel 1 is provided with a bi-directional concatenation means enabling it to be concatenated with the mounting plate 2 by screwing the rotary screws from its front face side or from the rear face side of the mounting plate 2, so that the display panel can be mounted/dismounted from both of the front and rear sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a display panel of an assembly in which a large number of light emitting elements such as LED lamps and chip LEDs are arranged two-dimensionally and uniformly.
In particular, the present invention relates to a mounting structure that allows a display panel to be easily attached to and detached from a display frame or the like.

[0002]

2. Description of the Related Art An image display using a single light emitting diode (LED) as a pixel can be used, for example, from large displays for outdoor advertisements and traffic displays, to indicators for various traffic lights, automobiles, and televisions. It has spread.

In such an image display, for example, a large number of LEDs of R, G, B are two-dimensionally arranged on the front surface of a panel in the same plane, and the panel is fixed to a mounting portion to be mounted. Is the basic configuration. In this case, since the substrate on which the wiring for energizing each LED and other functional elements are mounted is incorporated on the back surface of the panel, the mounting portion should have a frame shape with an opening slightly smaller than the outer shape of the panel. This opening is generally used for wiring and assembling a substrate.

Conventionally, in mounting the panel on such an image display, a configuration has been adopted in which the panel can be mounted and removed only from the front side of the panel or only from the back side of the mounting portion. FIG. 11 is a side view showing an example in which the panel can be handled from the front side and FIG. 12 can be handled from the back side of the mount section.

In FIG. 11, a display panel 51 has, for example, a square or rectangular front shape, a large number of LEDs 52 arranged on the front surface, and a substrate 53 electrically connected to these LEDs 52 mounted on the back surface. It is. Mounting holes 51a are formed in the panel 51 at a plurality of positions that do not interfere with the substrate 53, and mounting screws 54 can be inserted into the mounting holes 51a from the front side.

On the other hand, as shown in FIG. 1B, a substrate 53 is provided on the main body side of the image display device to be attached to the panel 51.
A mounting plate 55 having an opening large enough to allow the insertion of the mounting plate 55 is provided. The mount plate 55 is provided with a tapped screw hole 55b for screwing the mounting screw 54.

[0007] In the example shown in the figure, as shown in FIG.
The mounting screw 54 is inserted into the screw hole 55b of the mount plate 55 and turned using a screwdriver. Thereby, the mounting screw 5
4 and the screw hole 55 b are screwed together, and the panel 51 can be fixed to the mount plate 55.

On the other hand, in the example of FIG. 12, an insert nut 51b is embedded in the panel 51 from the back side instead of the mounting hole 51a of the previous example, and the mount plate 55 is inserted into the insert nut 51b instead of the screw hole 55b. A through hole 55 having an inner diameter enough to allow a mounting screw 56 to be screwed in.
c is opened.

In such a configuration, as shown in FIG. 1B, after the panel 51 is arranged in front of the mount plate 55, the mounting screw 56 is inserted through the through hole 55c and screwed into the insert nut 51b. By doing so, the panel 51 is fixed to the mount plate 55.

[0010]

However, in the example of FIG. 11, mounting screws 54 are mounted on the front side of the mounting plate 55.
Only the attachment and detachment of the panel 51 can be performed. For this reason, from the viewpoint of the overall design of the display device, it is necessary to provide a design that allows for handling only from the front side in preparation for replacement of the panel 51, and the like.
This limits the degree of freedom in design. Also, in the example of FIG. 12, since the mounting screws 56 are operated only from the back side of the mount plate 55, the degree of freedom in design is similarly affected.

As described above, the mounting structure of the panel 51 in the conventional image display can be dealt with only from the front side or the back side of the mount plate 55 for mounting the panel 51 to the display device main body. For this reason, in order to disassemble the image display device at the time of assembling or maintenance and inspection, it is necessary to make a design in consideration of the order of assembling and disassembling other parts. Therefore, the degree of freedom of design is impaired, including the assembling relationship between the components. For example, when the panel 51 on which the LEDs 52 are arranged is shipped as a product, the mounting plate 55 is not mounted.
For a user who assembles the entire display device including the display device, the design of the display device itself is greatly affected.

The problem to be solved in the present invention is LED
The display panel, which is composed of single pixels as pixels, can be attached or detached from the front side or the back side of the mounting surface, making it easy to assemble and disassemble and not interfering with the design freedom of the display device body. It is to provide a mounting structure.

[0013]

SUMMARY OF THE INVENTION The present invention relates to a mounting structure for removably mounting a display panel having light emitting elements such as LEDs arranged on the front side thereof on a mount plate of an image display device by a rotating screw. Place the back side and the front side of the mount plate
The display panel is characterized in that it is provided with a bidirectional connecting means which enables connection with the mount plate by screwing a rotating screw from the front side or the back side of the mount plate.

[0014] In this configuration, the display panel is provided with a hole through which a female screw into which a rotary screw is screwed from the front side of the display panel or a rotary screw inserted from the back side of the mount plate is formed. Attachment / detachment is possible from the front side or the back side of the mount plate.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is an LED
A mounting structure in which a light emitting element such as a light emitting element is arranged on the front surface side is detachably mounted on a mount plate of an image display device by a rotating screw, and the rear surface of the display panel and the front surface of the mount plate are abutted and arranged. And a bi-directional connecting means for enabling connection with the mount plate by screwing a rotating screw from the front side or the back side of the mount plate, and the display panel can be mounted on the mount plate even from the front side. It has the effect that it can be attached and detached even from the back side.

According to a second aspect of the present invention, the two-way connecting means includes a through hole opened from the front side of the display panel,
2. The mounting structure for a display panel according to claim 1, further comprising: a female screw hole formed coaxially from said through hole toward the back surface side and having a nominal diameter substantially equal to the inner diameter of said through hole. The display panel can be attached to and detached from the mount plate only by rotating the panel.

According to a third aspect of the present invention, the rotary screw inserted from the front side of the display panel has a smaller nominal diameter than the through hole and the female screw hole, and the mount screw can be screwed into the mount plate. 3. The display panel mounting structure according to claim 2, wherein the operation hole is formed in advance, and the rotating screw can be inserted into the through hole and screwed into the female screw hole of the mount plate, so that the rotating screw can be inserted from the front side of the display panel. It has the effect that the operation of attaching and detaching can be performed.

According to a fourth aspect of the present invention, the rotary screw inserted from the back side of the mount plate can be screwed into a female screw hole provided in the display panel, and the rotary screw can be inserted into the mount plate. 3. The mounting structure for a display panel according to claim 2, wherein an operation hole having a large inner diameter is formed in advance, and the rotating screw can be inserted into the operation hole and screwed into a female screw hole of the display panel. Mounting from the back side of
It has the effect of being able to perform the removal operation.

According to a fifth aspect of the present invention, the female screw hole provided in the display panel is a female screw of an insert nut inserted from the back side of the display panel. Has an effect that the processing for forming a hole for inserting an insert nut can be performed without forming a female screw hole in the display panel.

According to a sixth aspect of the present invention, the two-way connecting means includes a through hole opened from the front side of the display panel,
A boss mounting hole formed coaxially from the through hole toward the back surface side and having an inner diameter larger than the through hole; and a female screw hole having a nominal diameter smaller than the through hole is provided in the boss mounting hole. 2. The display panel mounting structure according to claim 1, wherein the formed boss is detachable from the back side of the display panel and can be mounted so as not to rotate around the axis. It has the effect that it can be attached to and detached from the mount plate.

According to a seventh aspect of the present invention, the rotary screw inserted from the front side of the display panel has a smaller nominal diameter than the through hole, and an operation hole into which the rotary screw can be screwed is provided in the mount plate in advance. 7. The display panel mounting structure according to claim 6, wherein the rotating screw can be inserted into the boss mounting hole from the through hole and screwed into the female screw hole of the mount plate. It has the effect that the operation of attaching and detaching can be performed.

According to an eighth aspect of the present invention, the rotary screw inserted from the back side of the mount plate can be screwed into the female screw hole of the boss, and the mount plate has an inner diameter into which the rotary screw can be inserted. Pre-formed operation holes that have
7. The display panel mounting structure according to claim 6, further comprising a second boss fixing rotary screw inserted into the through hole from the front surface of the display panel and screwed into the female screw hole of the boss. If the boss is fixed to the boss mounting hole with a screw, the rotating screw can be inserted into the operation hole and screwed into the female screw hole of the fixed boss. It has the effect of being able to operate.

According to a ninth aspect of the present invention, the two-way connecting means includes a through hole opened from the front side of the display panel,
A mounting groove formed from a region including the through hole to the back surface side and having an opening cross section larger than the through hole, wherein the mounting groove has a female screw hole having a smaller nominal diameter than the through hole. 2. The display panel mounting structure according to claim 1, wherein the rotating screw can be inserted into the operation hole and screwed into the female screw hole of the display panel. This has the effect that the mounting / removal operation can be performed from the back side of the mount plate.

According to a tenth aspect of the present invention, the rotary screw inserted from the front side of the display panel has a smaller nominal diameter than the through hole, and an operation hole to which the rotary screw can be screwed is provided in the mount plate in advance. Claim 9 which is formed
The mounting structure of the display panel described above, wherein the rotating screw can be inserted into the mounting groove from the through hole and screwed into the female screw hole of the mount plate, so that the mounting and removing operation from the front side of the display panel can be performed. It has the action of:

According to an eleventh aspect of the present invention, the rotary screw inserted from the back side of the mount plate can be screwed into the female screw hole of the spacer, and the mount plate has an inner diameter into which the rotary screw can be inserted. 10. The mounting of the display panel according to claim 9, further comprising a second rotary screw for fixing the spacer, which is previously formed with an operation hole to be held, and further inserted into the through hole from the front surface of the display panel and screwed into the female screw hole of the spacer. If the spacer is fixed to the mounting groove by the second rotation screw, the rotation screw can be inserted into the operation hole and screwed into the female screw hole of the fixed spacer. It has the effect of being able to perform attachment and detachment operations from the side.

Hereinafter, a specific example of the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing an outline of a display panel mounting structure according to an embodiment of the present invention.

In the figure, a display panel 1 having a substantially square front shape is fixed to a flat mount plate 2 provided as a part of a main body side of a display device. It is common in the mounting structure. The mount plate 2 has an opening 2a smaller than the outer shape of the display panel 1, and has a plurality of operation holes 2b as tap holes or through holes along the edge of the opening 2a.

FIGS. 2 and 3 show specific examples of the display panel 1. FIGS. 2A and 2B are a front view and a rear view, respectively, and FIG. It is a cutaway right side view, and the principal part is enlarged and shown.

On the front side of the display panel 1, R,
A large number of LEDs 3 of G and B are arranged in a uniform arrangement pattern, and FIG. 2A shows only a part thereof. A substrate 3a electrically connected to each LED 3 is mounted on the rear surface side so as to protrude slightly toward the back as shown in FIG. And a waterproof packing 3b for sealing between the two.

In a portion along the outer peripheral edge of the display panel 1, through holes 4a and insert nuts 4b are provided coaxially at a plurality of positions matching the operation holes 2b of the mount plate 2. The through hole 4a is formed from the front side of the display panel 1, and the insert nut 4b is formed in the through hole 4a.
It is incorporated at a position facing the back surface side from the end of a. The inner diameter of the through hole 4a is equal to the insert nut 4b.
The insert nut 4b has a female screw formed on the inner periphery of the insert nut 4b over the entire length in the axial direction. When the nominal diameter of the insert nut 4b is, for example, M3.5, the inner diameter of the through hole 4a is 3.5 m.
m, which will be described below using this value. Of course, since the inner diameter of the through hole 4a varies depending on the type of the display panel 1, it is natural that the nominal diameter of the insert nut 4b corresponds to M2.6 or M4.

By providing such a through-hole 4a and insert nut 4b, (a) and (b) of FIG.
As shown in FIG. 5, the display panel 1 can be detached from either the front side or the back side of the mount plate 2. In FIG. 1, reference numerals are given to respective members as those corresponding to FIG.

In the case of mounting from the front side in FIG. 4A, the operation hole 2b of the mount plate 2 has a nominal diameter of M3.
A female screw hole 2b-1 having a nominal diameter of M3 is used as the mounting screw 5 to be inserted from the through hole 4a. Thereby, the mounting screw 5 can be inserted into the through hole 4a and screwed into the female screw hole 2b-1 without being screwed with the insert nut 4b. Therefore, the mounting screw 5 can be directly screwed into the mount plate 2, and the display panel 1 can be mounted from the front side of the mount plate 2. When the display panel 1 is to be removed, the mounting screw 5 may be turned in the opposite direction and removed from the female screw hole 2b-1.

In the case of mounting from the back side of FIG. 4B, the operation hole 2b of the mount plate 2 has an inner diameter of 4 mm.
A through screw 2b-2 having a nominal diameter of M3.5 mm to be screwed into the insert nut 4b is inserted into the mount plate 2 from the back side of the mount plate 2. Thus, the mounting screws 6 can be screwed into the insert nuts 4b through the through holes 2b-2, and the display panel 1 can be mounted on the mounting plate 2 by the mounting screws 6 inserted from the back side of the mounting plate 2. Also, when removing the display panel 1, turn the mounting screw 6 in the opposite direction to insert the nut 4.
Just remove it from b.

Here, the length of the mounting screw 6 is such that it can enter into the middle of the insert nut 4b when it is screwed into the insert nut 4b. If an auxiliary screw 6a having a nominal diameter of M3.5 is inserted into the through hole 4a and screwed into the insert nut 4b from the front side of the display panel 1, the mounting plate 2 and the inside from the surface of the display panel 1 can be removed. Water intrusion can be prevented. In addition, auxiliary screw 6
a may be a common part with the mounting screw 6 screwed from the back side.

As described above, when the display panel 1 is fixed from the front side by the mounting screw 5, the female screw hole 2b-1 may be previously formed in the mount plate 2 as an operation hole. When the mounting plate 6 is used to fix the mounting plate 2 from the back side, the mounting plate may be provided with a through hole 2b-2 as an operation hole. Therefore, with respect to the mount plate 2 provided on the main body side of the image display device, the display panel 1 can be attached to and detached from the mount plate 2 from the front side or the back side only by changing the specifications of the holes for operation. Become.

FIGS. 5 to 7 show another example. FIG. 5 (a) is a cutaway right side view of the display panel 1, and FIG. 5 (b) is a rear view of a main part. The same components as those described above are designated by the same reference numerals, and detailed description thereof will be omitted.

The display panel 1 is provided with a through-hole 7a having an inner diameter of 3.5 mm and a boss mounting hole 7b coaxially arranged with the through-hole 7a at the portion where the through-hole 4a and the insert nut 4b in the previous example are provided. To be provided. The boss mounting hole 7b has a hexagonal cross-sectional shape having an opening area larger than that of the through hole 7a, as shown in FIG.

On the other hand, a boss 8 which can be disposed coaxially with the operation hole 2b is attached to the surface of the mount plate 2 as a separate component. As shown in FIG. 6 (a), the boss 8 has a hexagonal column shape whose outer shell is aligned with the boss mounting hole 7b so that the boss 8 fits tightly into the boss mounting hole 7b of the display panel 1 and does not rotate together. Things. The boss 8 is provided with a female screw hole 8a having a nominal diameter of M3.5 over the entire length in the axial direction.

The boss 8 is not limited to a hexagonal column, but may be a quadrangular column as shown in FIG. 6B or a cylindrical column as shown in FIG. May be formed with a cut surface 8b formed by chamfering a part of the flat surface, and may be a shape that does not co-rotate. By adjusting the shape of the opening to the boss mounting hole 7b of the display panel 1 according to the shape of the boss 8, the co-rotation can be prevented.

The operation hole 2b of the mount panel 2 is provided in accordance with the specification of mounting from the front side and mounting from the back side.
As shown in FIGS. 7A and 7B, the female screw hole 2b-
3 or through hole 2b-4. In this case, the nominal diameter of the female screw hole 2b-3 is M3.5, and the inner diameter of the through hole 2b-4 is about 4 mm.

In mounting the display panel 1 from the front side in FIG. 7A, the nominal diameter is M3.5, and the axial length is such that it can be screwed into the female screw hole 2b-3 of the mount plate 2. A mounting screw 9 is used. And
At the time of mounting, the boss 8 is not used, and the mounting screw 9 is inserted through the through hole 7a to mount the mounting plate 2.
The display panel 1 can be directly fixed to the mount plate 2 by the mounting screws 9 if the display panel 1 is screwed into the female screw hole 2 b-3 of FIG. In order to remove the mounting screw, the mounting screw 9 may be turned in the opposite direction from the surface side of the mount plate 2 as in the previous example.

In the case of the specification for mounting the display panel 1 from the back side in FIG. 7B, the boss 8 is inserted into each of the boss mounting holes 7b, and the female screw holes 8a are formed.
The boss 8 is integrated with the display panel 1 by a boss fixing screw 10 screwed into the display panel 1. That is, when the mounting plate 2 is to be mounted from the back surface side, the mounting of the boss 8 in the boss mounting hole 7b formed in the display panel 1 in advance is performed first.
Next, the display panel 1 is mounted by screwing the mounting screws 11 having the nominal diameter of M3.5 into the female screw holes 8a of the bosses 8 fixed in the boss mounting holes 7b through the through holes 2b-4. The plate 2 can be fixed to the mount plate 2 by an operation from the back side. Also, by removing the mounting screw 11 in the opposite direction, the display panel 1 can be removed from the mount plate 2 while leaving the boss 8 on the display panel 1 as it is.

Note that, depending on the environment of the installation location, by removing the boss fixing screw 10, it is possible to remove the display panel 1 and perform maintenance and inspection of the inside from the front side. In this case, since the boss 8 is still fixed to the mount plate 2, it is only necessary to return the display 1 to its original state and fix it with the boss fixing screw 10 after the inspection.

FIGS. 8 to 10 show still another example, in which a spacer is used in place of the boss 8 in the previous example. In this example, the same members as those described above are designated by the same reference numerals.

FIG. 8 is a cutaway right side view of the display panel 1. In the display panel 1, a through hole 12a having an inner diameter of 3.5 mm is opened from the front side at a position matching the operation hole 2b of the mount plate 2. A mounting groove 12b for a spacer communicating with these through holes 12a is provided from the back side. The mounting groove 12b is formed in an annular shape along the direction in which the through holes 12a are arranged, and the depth thereof is slightly larger than almost half the thickness of the display panel 1.

On the other hand, a spacer 13 to be fitted into the mounting groove 12b of the display panel 1 is attached to the mount plate 2 as a separate component. The spacer 13 has a frame shape (FIG. 9 (a)) that fits tightly into the mounting groove 12b, and a female screw hole 13a having a nominal diameter of M3.5 is located at a position matching each through hole 12a. Is provided.

The spacers 12 are not framed, but are replaced by four L-shaped spacer pieces 13 corresponding to the corners of the mounting groove 12b, as shown in FIG. 9B.
b, the female screw holes 13b-1 are formed in each of them, or these female screw holes 13c-1 are formed as rod-like spacers 13c long enough to be embedded as a part of the linear portion of the mounting groove 12b. May be used.

The operation hole 2b of the mount panel 2 is provided in accordance with the specification of mounting from the front side and mounting from the back side.
As shown in FIGS. 10A and 10B, the female screw hole 2b
-5 or through hole 2b-6. in this case,
The nominal diameter of the female screw hole 2b-5 is M3, and the inner diameter of the through hole 2b-6 is about 4 mm.

In mounting the display panel 1 from the front side in FIG. 10A, the nominal diameter is M3,
A mounting screw 14 having an axial length that can be screwed into the female screw hole 2b-5 of the mount plate 2 is used. In mounting, the spacer 13 is not used, and the mounting screw 14 is inserted through the through hole 12a and screwed into the female screw hole 2b-5 of the mounting plate 2, and the display is directly mounted on the mounting plate 2 by the mounting screw 14. The panel 1 can be fixed. In order to remove the mounting screw, the mounting screw 14 may be turned in the opposite direction from the surface side of the mount plate 2 as in the previous example. That is, the display panel 1 can be attached to and detached from the mount plate 2 in exactly the same manner as in the example shown in FIG.

In the case of the specification for mounting the display panel 1 from the back side in FIG. 10B, the spacer 13 is incorporated into the mounting groove 12b of the display panel 1,
Spacer fixing screw 1 screwed into female screw hole 13a
5, the spacer 13 is integrated into the display panel 1 integrally. That is, when the mounting plate 2 is designed to be mounted from the back side, the spacer 13 is inserted into the mounting groove 12b formed in the display panel 1 in advance.
Perform the assembly first. Then, the mounting screw 16 having the nominal diameter of M3.5 is screwed into the female screw hole 13a of the spacer 13 fixed in the mounting groove 12b through the through hole 2b-6 to thereby obtain the display panel 1.
Can be fixed to the mount plate 2 by operating from the back side of the mount plate 2. Also, by removing the mounting screw 16 in the opposite direction, the display panel 1 can be removed from the mount plate 2 while leaving the spacer 13 as it is on the display panel 1.

When a mount plate is prepared on the user side, a hole for mounting the display panel 1 is provided.
In some cases, it cannot be used according to the mounting holes on the mount plate. That is, even if the spacer 13 provided with the female screw hole 13a of the spacer 13 as shown in FIG. 9A is delivered to the user, the position of the mounting hole of the mount plate may not be aligned. On the other hand, a female screw hole 13a-1 corresponding to the mounting hole on the mount plate 2 side is formed in the spacer 13 at a position different from the female screw hole 13a on the user side, and a female screw hole is formed in the mount plate 2. Screw hole 13a-1
If the mounting holes are provided, the tightening position can be freely changed. Therefore, even if the specifications of the mount plate on the user side are various, the display panel 1 can be mounted by the above-described measures.

[0052]

According to the present invention, the display panel can be attached to and detached from the mount plate on the image display device side from either the front side or the rear side of the mount plate. Assembly and maintenance work on the mount plate can be simplified. Also, by utilizing the feature that the display panel can be attached to both sides of the mounting plate with respect to the main body of the image display device, the degree of freedom of design can be improved, and a novel form of the image display device can be provided. Provision is also possible.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a general outline of a structure for attaching a display panel to a mount plate according to an embodiment of the present invention.

FIG. 2 shows details of a display panel, wherein (a) is a front view and (b) is a rear view.

FIG. 3 is an example using an insert nut, and is a right side view of AA notch in FIG. 2 (a).

FIGS. 4A and 4B are diagrams showing a procedure of attaching a display panel to a mount plate, wherein FIG. 4A is a diagram showing attachment from the front side, and FIG.

5A and 5B are diagrams illustrating an example of using a boss, wherein FIG. 5A is a cutaway right side view of a display panel, and FIG.

6A and 6B are examples of bosses, wherein FIG. 6A is an example view shown in FIG. 5; FIG. 6B is a schematic perspective view showing a modified example;

FIGS. 7A and 7B are diagrams showing a procedure for attaching a display panel to a mount plate when a boss is used, where FIG. 7A shows an attachment from the front side and FIG. Figure

FIG. 8 is a cutaway right side view of a display panel showing an example of using a spacer.

9A and 9B are examples of spacers, wherein FIG. 9A is a schematic perspective view showing a modification example, FIG. 8B is a schematic perspective view showing a modification example, and FIG.

10A and 10B are diagrams illustrating a procedure for attaching a display panel to a mount plate when a spacer is used, where FIG. 10A is a diagram illustrating attachment from the front side and FIG. 10B is a diagram illustrating attachment from the rear side. Figure

FIG. 11 is a schematic view showing a conventional example, in which a display panel is attached from the front side.

FIG. 12 is a schematic view showing a conventional example, in which a display panel is attached from the back side.

[Explanation of symbols]

 Reference Signs List 1 display panel 2 mounting plate 2a opening 2b operation hole 2b-1,2b-3,2b-5 female screw hole 2b-2,2b-4,2b-6 through hole 3 LED 3a substrate 3b waterproof packing 4a through hole 4b insert Nut 5 Mounting screw 6 Mounting screw 6a Auxiliary screw 7a Through hole 7b Boss mounting hole 8 Boss 8a Female screw hole 9 Mounting screw 10 Boss fixing screw 11 Mounting screw 12a Through hole 12b Mounting groove 13 Spacer 13a Female screw hole 14 Mounting screw 15 Spacer Fixing screw 16 Mounting screw

Claims (11)

[Claims] 1. A mounting structure in which a display panel in which light emitting elements such as LEDs are arranged on a front surface side is detachably mounted on a mount plate of an image display device by a rotating screw. Attachment of a display panel in an image display device comprising a two-way connecting means for butt-positioning the display panel and enabling connection with the mount plate by screwing a rotating screw from the front surface side or the back surface side of the mount plate. Construction. 2. The two-way connecting means has a through hole formed from the front side of the display panel, and is formed coaxially from the through hole toward the back side and has a nominal diameter substantially equal to the inner diameter of the through hole. 2. The display panel mounting structure according to claim 1, further comprising a female screw hole. 3. A rotary screw inserted from the front side of the display panel has a smaller nominal diameter than the through hole and the female screw hole, and an operation hole into which the rotary screw can be screwed is formed in a mount plate in advance. The display panel mounting structure according to claim 2. 4. A rotary screw inserted from the back side of the mount plate can be screwed into a female screw hole provided in the display panel, and the mount plate has an operation hole having an inner diameter into which the rotary screw can be inserted. 3. The display panel mounting structure according to claim 2, which is formed in advance. 5. The display panel mounting structure according to claim 2, wherein the female screw hole provided in the display panel is a female screw of an insert nut inserted from the back side of the display panel. 6. The two-way connecting means includes a through hole opened from the front side of the display panel, a boss mounting hole formed coaxially from the through hole to the back side and having an inner diameter larger than the through hole. In the boss mounting hole, a boss having a female screw hole having a smaller nominal diameter than the through hole can be detachably mounted from the back side of the display panel and can be mounted so as not to rotate around the axis. A display panel mounting structure according to claim 1. 7. A rotary screw inserted from the front side of the display panel has a nominal diameter smaller than the through hole.
7. The display panel mounting structure according to claim 6, wherein an operation hole to which said rotary screw can be screwed is formed in said mount plate in advance. 8. A rotary screw inserted from the back side of the mount plate can be screwed into a female screw hole of the boss,
An operation hole having an inside diameter into which the rotation screw can be inserted is previously formed in the mount plate, and a second rotation screw for fixing a boss is inserted into the through hole from the front surface of the display panel and screwed into the female screw hole of the boss. The display panel mounting structure according to claim 6, further comprising: 9. The bidirectional connecting means includes a through hole opened from the front side of the display panel, and a mounting groove formed from a region including the through hole to the back side and having an opening cross section larger than the through hole. 2. The display panel mounting structure according to claim 1, wherein a spacer having a female screw hole having a smaller nominal diameter than the through hole can be detachably mounted in the mounting groove from the back side of the display panel. 10. The rotary screw inserted from the front side of the display panel has a smaller nominal diameter than the through hole, and an operation hole into which the rotary screw can be screwed is formed in a mount plate in advance. The mounting structure of the display panel described. 11. A rotary screw inserted from the back side of the mount plate can be screwed into a female screw hole of the spacer, and an operation hole having an inside diameter into which the rotary screw can be inserted is formed in the mount plate in advance. 10. The display panel mounting structure according to claim 9, further comprising a second rotary screw for fixing the spacer, which is inserted into the through hole from the front surface of the display panel and screwed into the female screw hole of the spacer.