LED display device

Abstract

The utility model provides an LED display device. The LED display device comprises a frame; the front lamp panel is arranged on the front side of the frame; the first thread gluing structure comprises a first thread gluing and a second thread gluing, the first thread gluing is arranged on the front side of the frame, the second thread gluing is arranged on the rear surface of the front lamp panel, and the first thread gluing and the second thread gluing are separably matched in a bonding mode. According to the technical scheme, the problem that in the related technology, the efficiency of detaching the lamp panel from the frame is low is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an LED display device. Background Art

[0002] The LED display device includes a frame and a light board arranged at the front side of the frame.

[0003] The lamp board in the related art is fixed on the frame by screws or adhesives. Thus, when the lamp board needs to be removed and replaced, the separation operation of the lamp board and the frame is troublesome, which reduces the efficiency of removing the lamp board from the frame. Utility Model Content

[0004] The main purpose of the utility model is to provide an LED display device to solve the problem of low efficiency in removing a lamp panel from a frame in the related art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an LED display device, including: a frame; a headlight board, arranged on the front side of the frame; a first Velcro structure, including a first Velcro and a second Velcro, the first Velcro is arranged on the front side of the frame, and the second Velcro is arranged on the rear surface of the headlight board, and the first Velcro and the second Velcro are detachably bonded and matched.

[0006] Furthermore, the LED display device also includes a rear light board and a second Velcro structure, the rear light board is arranged on the rear side of the frame, the second Velcro structure includes a third Velcro and a fourth Velcro, the third Velcro is arranged on the rear side of the frame, and the fourth Velcro is arranged on the front surface of the rear light board, and the third Velcro and the fourth Velcro are detachably bonded and matched.

[0007] Furthermore, the LED display device also includes a rear frame arranged between the front side of the frame and the front light panel, and the first hook and loop fastener is arranged on the front surface of the rear frame.

[0008] Further, the rear frame includes a first frame edge, a second frame edge, a third frame edge, and a fourth frame edge connected in sequence, and the rear frame also includes a connecting beam located between the first frame edge and the third frame edge; there are multiple first velcros, and the multiple first velcros are arranged on the first frame edge, the second frame edge, the third frame edge, the fourth frame edge and the connecting beam; there are multiple second velcros, and the multiple first velcros are bonded and matched with the multiple second velcros in a one-to-one correspondence.

[0009] Furthermore, the first frame side, the second frame side, the third frame side and the fourth frame side form a rectangle, the first frame side and the third frame side are the long sides of the rectangle, and the number of first Velcro on the first frame side and the third frame side is greater than the number of first Velcro on the second frame side and the third frame side.

[0010] Furthermore, the connecting beam is provided with heat dissipation holes penetrating the front surface and the rear surface of the connecting beam, a plurality of heat dissipation holes are arranged at intervals, and the first hook and loop fastener on the connecting beam covers part of the plurality of heat dissipation holes.

[0011] Furthermore, the LED display device also includes a power signal component, a first wire connecting the power signal component with the front light panel signal, and a second wire connecting the power signal component with the rear light panel signal. The frame is provided with a wire hole for the first wire and the second wire to pass through, and the power signal component is located on one side of the outer periphery of the frame.

[0012] Furthermore, the frame includes a first crossbeam, a second crossbeam, a first longitudinal beam and a second longitudinal beam, the first crossbeam and the second crossbeam are arranged opposite to each other, the first longitudinal beam and the second longitudinal beam are arranged opposite to each other, and the first crossbeam and the second crossbeam are connected between the first longitudinal beam and the second longitudinal beam; the LED display device also includes a mounting plate located on one side of the outer periphery of the frame, and the power signal component is installed on the mounting plate; a wire passing hole is provided on the first crossbeam, and the mounting plate is arranged on the side of the first crossbeam away from the second crossbeam, and the first wire and the second wire pass through the wire passing hole to be connected with the power signal component signal.

[0013] Furthermore, the mounting plate includes a plate body, a first connecting plate and a second connecting plate, the power signal component is installed on the plate body, there are two first connecting plates, the two first connecting plates are respectively connected to the opposite sides of the plate body, the two first connecting plates both extend to the rear side of the plate body, there are two second connecting plates, one second connecting plate connects the rear surface of the first longitudinal beam and the rear edge of a first connecting plate, and the other second connecting plate connects the rear surface of the second longitudinal beam and the rear edge of the other first connecting plate.

[0014] Furthermore, there are multiple headlight panels, and the multiple headlight panels are arranged on the front side of the frame. The frame includes a first crossbeam, a second crossbeam, a first longitudinal beam, a second longitudinal beam, a connecting crossbeam and a connecting longitudinal beam. The first crossbeam is arranged opposite to the second crossbeam, and the first longitudinal beam is arranged opposite to the second longitudinal beam. The first crossbeam, the second crossbeam and the connecting crossbeam are all connected between the first longitudinal beam and the second longitudinal beam, the connecting crossbeam is located between the first crossbeam and the second crossbeam, the connecting longitudinal beam is connected between the first crossbeam and the second crossbeam, and the connecting longitudinal beam is located between the first longitudinal beam and the second longitudinal beam; there are multiple first hooks and loops, and the multiple first hooks and loops are arranged on the front surfaces of the first crossbeam, the second crossbeam, the first longitudinal beam, the second longitudinal beam, the connecting crossbeam and the connecting longitudinal beam; there are multiple second hooks and loops, and the multiple second hooks and loops are arranged at intervals on the rear surface of the headlight panel, and the multiple first hooks and loops are bonded and matched with the multiple second hooks in a one-to-one correspondence.

[0015] By applying the technical solution of the utility model, the LED display device includes: a frame, a headlight board and a first hook and loop structure. The headlight board is arranged at the front side of the frame. The first hook and loop structure includes a first hook and a second hook. The first hook and loop are arranged at the front side of the frame, and the second hook and loop are arranged on the rear surface of the headlight board, and the first hook and loop are detachably bonded and matched. In this way, the setting of the first hook and loop structure facilitates the connection and separation of the headlight board and the frame. When the headlight board is arranged at the front side of the frame, the first hook and loop on the front side of the frame are bonded and matched with the second hook and loop on the rear surface of the headlight board, so that the headlight board can be reliably fixed on the front side of the frame. When the headlight board needs to be separated from the frame, the operator drives the headlight board to move so that the first hook and loop are separated from the second hook and loop, so that the headlight board is easier to remove from the frame, and the efficiency of removing the headlight board from the frame is improved. Therefore, the technical solution of the present application effectively solves the problem of low efficiency of removing the light board from the frame in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A perspective schematic diagram of an embodiment of an LED display device according to the utility model when viewed from the front is shown;

[0018] Figure 2 Shows Figure 1 A schematic top view of an LED display device;

[0019] Figure 3 Shows Figure 1 A schematic diagram of a three-dimensional structure of a rear frame of an LED display device;

[0020] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of a front light panel of an LED display device;

[0021] Figure 5 Shows Figure 1 A partial side view schematic diagram of a front light panel and a rear frame of an LED display device;

[0022] Figure 6 Shows Figure 1 A bottom view of a mounting plate of an LED display device is shown in FIG.

[0023] The above drawings include the following reference numerals:

[0024] 11. first cross beam; 12. second cross beam; 13. first longitudinal beam; 14. second longitudinal beam; 15. connecting cross beam; 16. connecting longitudinal beam;

[0025] 21. Front light panel; 22. Rear light panel;

[0026] 31. First Velcro; 32. Second Velcro;

[0027] 40. rear frame; 41. first frame edge; 42. second frame edge; 43. third frame edge; 44. fourth frame edge; 45. connecting beam; 46. heat dissipation hole;

[0028] 50. power signal element; 51. first conductor; 52. second conductor;

[0029] 60. Mounting plate; 61. Plate body; 62. First connecting plate; 63. Second connecting plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 5 As shown, applying the technical solution of this embodiment, the LED display device includes: a frame, a headlight board 21 and a first hook and loop structure. The headlight board 21 is arranged at the front side of the frame. The first hook and loop structure includes a first hook and loop 31 and a second hook and loop 32. The first hook and loop 31 is arranged at the front side of the frame, and the second hook and loop 32 is arranged on the rear surface of the headlight board 21. The first hook and loop 31 and the second hook and loop 32 are detachably bonded and matched.

[0032] In this way, by setting the first Velcro structure, the connection and separation of the headlight board 21 and the frame are facilitated. When the headlight board 21 is set on the front side of the frame, the first Velcro 31 on the front side of the frame is bonded and matched with the second Velcro 32 on the rear surface of the headlight board 21, so that the headlight board 21 can be reliably fixed on the front side of the frame. When the headlight board 21 needs to be separated from the frame, the operator drives the headlight board 21 to move so that the first Velcro 31 is separated from the second Velcro 32, making it easier to remove the headlight board 21 from the frame, thereby improving the efficiency of removing the headlight board 21 from the frame. Therefore, the technical solution of this embodiment effectively solves the problem of low efficiency of removing the headlight board from the frame in the related art.

[0033] In this embodiment, the first hook and loop structure is provided to facilitate the removal of the light board from the frame, so that the operator can perform front maintenance on the electronic components in the LED display device from the front side of the frame. Figures 1 to 5 As shown, the LED display device also includes a rear light board 22 and a second hook and loop structure, and the rear light board 22 is arranged on the rear side of the frame. In this way, through the arrangement of the second hook and loop structure, both the front and rear sides of the LED display device can be displayed, which is convenient for the processing and assembly of the double-sided LED display device. The second hook and loop structure includes a third hook and a fourth hook. The third hook is arranged on the rear side of the frame, and the fourth hook is arranged on the front surface of the rear light board 22, and the third hook and the fourth hook are detachably bonded and matched. In this way, through the arrangement of the second hook and loop structure, it is convenient to connect and separate the rear light board 22 from the frame. When the rear light board 22 is arranged on the rear side of the frame, the third hook on the rear side of the frame is bonded and matched with the fourth hook on the front surface of the rear light board 22, so that the rear light board 22 can be reliably fixed on the rear side of the frame. When the rear light board 22 needs to be separated from the frame, the operator drives the rear light board 22 to move so that the third hook and the fourth hook are separated, so that the rear light board 22 is easier to remove from the frame, and the efficiency of removing the rear light board 22 from the frame is improved.

[0034] Furthermore, by providing the first hook and loop structure and the second hook and loop structure, the front light panel 21 and the rear light panel 22 can be detachably connected to the frame, so as to facilitate the installation and subsequent maintenance of electronic components inside the LED display device.

[0035] like Figures 1 to 5 As shown, the LED display device further includes a rear frame 40 disposed between the front side of the frame and the headlight board 21, and the first hook and loop 31 is disposed on the front surface of the rear frame 40. The arrangement of the rear frame 40 can improve the structural strength of the headlight board 21. The headlight board 21 is fixedly connected to the rear frame 40, and the rear frame 40 is connected to the first hook and loop 31 on the frame through the first hook and loop 31. This makes it easier for an operator to hold the rear frame 40 to remove the headlight board 21 from the frame together with the rear frame 40, further improving the efficiency of removing the headlight board 21 from the frame.

[0036] In other embodiments, the first hook and loop fastener 31 is disposed on the front surface of the frame, and the second hook and loop fastener 32 is disposed on the rear surface of the headlight board 21. The frame and the headlight board 21 are directly bonded and matched through the first hook and loop fastener structure, which reduces the distance between the frame and the headlight board 21, reduces the thickness of the LED display device, and facilitates the ultra-thin design of the LED display device.

[0037] like Figures 1 to 5As shown, the rear frame 40 includes a first frame edge 41, a second frame edge 42, a third frame edge 43, and a fourth frame edge 44 connected in sequence, and the rear frame 40 also includes a connecting beam 45 located between the first frame edge 41 and the third frame edge 43. The structure of the rear frame 40 is simple and easy to process. The setting of the connecting beam 45 can further improve the structural strength of the rear frame 40. There are multiple first hooks 31, and multiple first hooks 31 are arranged on the first frame edge 41, the second frame edge 42, the third frame edge 43, the fourth frame edge 44 and the connecting beam 45. There are multiple second hooks 32, and multiple first hooks 31 are bonded and matched with multiple second hooks 32 in a one-to-one correspondence. The setting of multiple hooks makes the connection between the rear frame 40 and the frame more reliable, so that the front light panel 21 can be more reliably fixed to the front side of the frame.

[0038] like Figures 1 to 5 As shown, the first frame edge 41, the second frame edge 42, the third frame edge 43 and the fourth frame edge 44 form a rectangle. The first frame edge 41 and the third frame edge 43 are the long sides of the rectangle, and the number of the first hooks 31 on the first frame edge 41 and the third frame edge 43 is greater than the number of the first hooks 31 on the second frame edge 42 and the third frame edge 43. In this way, through the reasonable arrangement of the plurality of first hooks 31, the force of the rear frame 40 when fixed to the frame through the first hooks 31 and the second hooks 32 is more uniform, further improving the reliability of the connection between the rear frame 40 and the frame, so as to further improve the reliability of the front light panel 21 when fixed to the front side of the frame.

[0039] like Figures 1 to 5 As shown, the connecting beam 45 is provided with heat dissipation holes 46 that penetrate the front surface and the rear surface of the connecting beam 45, and the heat dissipation holes 46 are arranged at intervals. The arrangement of the plurality of heat dissipation holes 46 facilitates the heat dissipation of the headlight board 21, and can also reduce the weight of the rear frame 40, which is convenient for the processing and transportation of the rear frame 40. The first velcro 31 on the connecting beam 45 covers part of the plurality of heat dissipation holes 46. This facilitates the arrangement of the first velcro 31 on the connecting beam 45 and the installation of the first velcro 31. In addition, the heat generated by the headlight board 21 can also be dissipated from the covered heat dissipation holes 46 through the first velcro 31.

[0040] like Figures 1 to 5As shown, the LED display device also includes a power signal member 50, a first wire 51 connecting the power signal member 50 to the front light board 21 signal, and a second wire 52 connecting the power signal member 50 to the rear light board 22 signal. The frame is provided with a wire hole for the first wire 51 and the second wire 52 to pass through, and the power signal member 50 is located on one side of the outer circumference of the frame. The provision of the wire hole facilitates the routing of the first wire 51 and the second wire 52 in the frame. The power signal member 50 is provided on one side of the frame so that the thickness of the frame in the front-to-back direction can be less than the thickness of the power signal member 50 in the front-to-back direction. It is convenient to set the frame thinner, thereby facilitating the reduction of the thickness of the LED display device.

[0041] In this embodiment, the first conductive wire 51 and the second conductive wire 52 are flexible wires, and both can transmit signals and supply power.

[0042] like Figures 1 to 5 As shown, the frame includes a first crossbeam 11, a second crossbeam 12, a first longitudinal beam 13 and a second longitudinal beam 14, the first crossbeam 11 and the second crossbeam 12 are arranged opposite to each other, the first longitudinal beam 13 and the second longitudinal beam 14 are arranged opposite to each other, and the first crossbeam 11 and the second crossbeam 12 are connected between the first longitudinal beam 13 and the second longitudinal beam 14. The structure of the frame is simple and easy to process. The LED display device also includes a mounting plate 60 located on one side of the outer circumference of the frame, and the power signal member 50 is mounted on the mounting plate 60. The arrangement of the mounting plate 60 facilitates the arrangement and installation of the power signal member 50. A wire hole is arranged on the first crossbeam 11, and the mounting plate 60 is arranged on the side of the first crossbeam 11 away from the second crossbeam 12. The first wire 51 and the second wire 52 pass through the wire hole to connect the signal of the power signal member 50. The arrangement of the wire hole on the first crossbeam 11 facilitates the first wire 51 and the second wire 52 inside the frame to be led out, so as to facilitate the signal connection with the power signal member 50 located on one side of the frame.

[0043] like Figure 6 As shown, the mounting plate 60 includes a plate body 61, a first connecting plate 62 and a second connecting plate 63, and the power signal member 50 is mounted on the plate body 61. The arrangement of the plate body 61 facilitates the arrangement and installation of the power signal member 50. There are two first connecting plates 62, and the two first connecting plates 62 are respectively connected to the opposite sides of the plate body 61, and the two first connecting plates 62 extend to the rear side of the plate body 61. There are two second connecting plates 63, one second connecting plate 63 connects the rear surface of the first longitudinal beam 13 and the rear edge of one first connecting plate 62, and the other second connecting plate 63 connects the rear surface of the second longitudinal beam 14 and the rear edge of the other first connecting plate 62. The arrangement of the first connecting plate 62 and the second connecting plate 63 facilitates the connection of the plate body 61 with the first longitudinal beam 13 and the second longitudinal beam 14. In addition, the structure of the plate body 61, the first connecting plate 62 and the second connecting plate 63 is simple and compact, which is convenient for the processing of the mounting plate 60.

[0044] like Figures 1 to 5 As shown, there are multiple headlight panels 21, and the multiple headlight panels 21 are arranged on the front side of the frame. The frame includes a first crossbeam 11, a second crossbeam 12, a first longitudinal beam 13, a second longitudinal beam 14, a connecting crossbeam 15 and a connecting longitudinal beam 16. The first crossbeam 11 is arranged opposite to the second crossbeam 12, the first longitudinal beam 13 is arranged opposite to the second longitudinal beam 14, the first crossbeam 11, the second crossbeam 12 and the connecting crossbeam 15 are all connected between the first longitudinal beam 13 and the second longitudinal beam 14, the connecting crossbeam 15 is located between the first crossbeam 11 and the second crossbeam 12, the connecting longitudinal beam 16 is connected between the first crossbeam 11 and the second crossbeam 12, and the connecting longitudinal beam 16 is located between the first longitudinal beam 13 and the second longitudinal beam 14. The structure of the frame is simple and easy to process. In addition, the arrangement of the connecting crossbeam 15 and the connecting longitudinal beam 16 can improve the structural strength of the frame. There are multiple first hooks and loops 31, which are arranged on the front surfaces of the first cross beam 11, the second cross beam 12, the first longitudinal beam 13, the second longitudinal beam 14, the connecting cross beam 15 and the connecting longitudinal beam 16. There are multiple second hooks and loops 32, which are arranged at intervals on the rear surface of the headlight board 21, and the multiple first hooks and loops 31 are bonded and matched with the multiple second hooks and loops 32 in a one-to-one correspondence. The arrangement of the multiple first hooks and loops 31 and the multiple second hooks and loops 32 enables the edges of the headlight board 21 to be bonded and matched with the frame, making the arrangement of the headlight board 21 on the front side of the frame more stable and reliable.

[0045] In this embodiment, the first cross beam 11, the second cross beam 12, the first longitudinal beam 13, the second longitudinal beam 14, the connecting cross beam 15 and the connecting longitudinal beam 16 are all hollow square tubes.

[0046] In this embodiment, the first hook and loop structure is a mushroom hook described in the authorization announcement number CN215634177U. The mushroom hook and loop is made of nylon. The mushroom hook and loop can be closed repeatedly, is easy to operate, and is reliably fixed. It can be quickly fixed and separated, and is easy to repeat. It can replace some traditional mechanical fastening methods such as riveting and screwing, improve efficiency, increase production capacity, and improve product reliability.

[0047] In this embodiment, the first Velcro 31 is fixed to the front side of the frame through the first electronic structural adhesive layer, and the second Velcro 32 is fixed to the headlight panel 21 or the rear frame 40 through the second electronic structural adhesive layer.

[0048] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0050] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An LED display device, characterized in that: include: frame; A front light panel (21), arranged on the front side of the frame; The first hook and loop structure comprises a first hook and loop (31) and a second hook and loop (32), wherein the first hook and loop (31) is arranged on the front side of the frame, and the second hook and loop (32) is arranged on the rear surface of the headlight panel (21), and the first hook and loop (31) and the second hook and loop (32) are detachably bonded and matched.

2. The LED display device according to claim 1, characterized in that: The LED display device also includes a rear light panel (22) and a second hook and loop structure, wherein the rear light panel (22) is arranged on the rear side of the frame, and the second hook and loop structure includes a third hook and a fourth hook, wherein the third hook is arranged on the rear side of the frame, and the fourth hook and loop are arranged on the front surface of the rear light panel (22), and the third hook and loop are detachably bonded and matched with the fourth hook and loop.

3. The LED display device according to claim 1, characterized in that: The LED display device further comprises a rear frame (40) arranged between the front side of the frame and the front light panel (21), and the first hook and loop fastener (31) is arranged on the front surface of the rear frame (40).

4. The LED display device according to claim 3, characterized in that: The rear frame (40) comprises a first frame edge (41), a second frame edge (42), a third frame edge (43), and a fourth frame edge (44) which are connected in sequence, and the rear frame (40) further comprises a connecting beam (45) located between the first frame edge (41) and the third frame edge (43); There are a plurality of first velcros (31), and the plurality of first velcros (31) are arranged on the first frame edge (41), the second frame edge (42), the third frame edge (43), the fourth frame edge (44) and the connecting beam (45); there are a plurality of second velcros (32), and the plurality of first velcros (31) and the plurality of second velcros (32) are bonded and matched in a one-to-one correspondence.

5. The LED display device according to claim 4, characterized in that: The first frame side (41), the second frame side (42), the third frame side (43) and the fourth frame side (44) form a rectangle, the first frame side (41) and the third frame side (43) are long sides of the rectangle, and the number of the first Velcro (31) on the first frame side (41) and the third frame side (43) is greater than the number of the first Velcro (31) on the second frame side (42) and the third frame side (43).

6. The LED display device according to claim 4, characterized in that: The connecting beam (45) is provided with heat dissipation holes (46) penetrating the front surface and the rear surface of the connecting beam (45); the heat dissipation holes (46) are multiple and arranged at intervals; the first hook and loop fastener (31) on the connecting beam (45) covers part of the heat dissipation holes (46) among the multiple heat dissipation holes (46).

7. The LED display device according to claim 2, characterized in that: The LED display device further comprises a power signal element (50), a first wire (51) for connecting the power signal element (50) with the front light panel (21) signal, and a second wire (52) for connecting the power signal element (50) with the rear light panel (22) signal, the frame being provided with a wire hole for the first wire (51) and the second wire (52) to pass through, and the power signal element (50) being located on one side of the outer circumference of the frame.

8. The LED display device according to claim 7, characterized in that: The frame comprises a first cross beam (11), a second cross beam (12), a first longitudinal beam (13) and a second longitudinal beam (14); the first cross beam (11) and the second cross beam (12) are arranged opposite to each other, the first longitudinal beam (13) and the second longitudinal beam (14) are arranged opposite to each other, and the first cross beam (11) and the second cross beam (12) are connected between the first longitudinal beam (13) and the second longitudinal beam (14); the LED display device further comprises a mounting plate (60) located on one side of the outer circumference of the frame, and the power signal element (50) is mounted on the mounting plate (60); The first crossbeam (11) is provided with the wire hole, the mounting plate (60) is arranged on a side of the first crossbeam (11) away from the second crossbeam (12), and the first wire (51) and the second wire (52) pass through the wire hole to be connected to the power signal element (50) for signal connection.

9. The LED display device according to claim 8, characterized in that: The mounting plate (60) comprises a plate body (61), a first connecting plate (62) and a second connecting plate (63); the power signal element (50) is mounted on the plate body (61); there are two first connecting plates (62), the two first connecting plates (62) are respectively connected to two opposite sides of the plate body (61); the two first connecting plates (62) both extend toward the rear side of the plate body (61); there are two second connecting plates (63), one second connecting plate (63) connects the rear surface of the first longitudinal beam (13) and the rear edge of one first connecting plate (62), and the other second connecting plate (63) connects the rear surface of the second longitudinal beam (14) and the rear edge of the other first connecting plate (62).

10. The LED display device according to claim 1, characterized in that: There are a plurality of headlight panels (21), and the plurality of headlight panels (21) are arranged on the front side of the frame. The frame comprises a first cross beam (11), a second cross beam (12), a first longitudinal beam (13), a second longitudinal beam (14), a connecting cross beam (15) and a connecting longitudinal beam (16). The first cross beam (11) and the second cross beam (12) are arranged opposite to each other. The first longitudinal beam (13) and the second longitudinal beam (14) are arranged opposite to each other. The first cross beam (11), the second cross beam (12) and the connecting cross beam (15) are all connected between the first longitudinal beam (13) and the second longitudinal beam (14). The connecting cross beam (15) is located between the first cross beam (11) and the second cross beam (12). The connecting longitudinal beam (16) is connected between the first cross beam (11) and the second cross beam (12). The connecting longitudinal beam (16) is located between the first longitudinal beam (13) and the second longitudinal beam (14). There are a plurality of first hooks and loops (31), and the plurality of first hooks and loops (31) are arranged on the front surfaces of the first cross beam (11), the second cross beam (12), the first longitudinal beam (13), the second longitudinal beam (14), the connecting cross beam (15) and the connecting longitudinal beam (16); there are a plurality of second hooks and loops (32), and the plurality of second hooks and loops (32) are arranged at intervals on the rear surface of the headlight panel (21), and the plurality of first hooks and loops (31) are bonded and matched with the plurality of second hooks and loops (32) in a one-to-one correspondence.

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