CN220752997U - Display screen - Google Patents

Abstract

The utility model provides a display screen, wherein two adjacent boxes of the display screen are detachably connected; the plurality of HUB plates are arranged, and at least one HUB plate is arranged in each box body; HUB plates in two adjacent boxes are connected through a first connecting wire; at least one power module is arranged in at least one box body, and a HUB board in the box body with the power module is electrically connected with the power module; at least one control card module is arranged in the at least one box body and is electrically connected with the HUB board; the HUB board in the box body without the power module is electrically connected with the HUB board or the power module in the adjacent box body through the busbar assembly; the different power modules are connected through a second connecting wire and/or the power modules are connected with an external power supply through the second connecting wire. The utility model solves the technical problems of redundant hardware performance and poor reliability of the display screen in the prior art.

Description

Display screen

Technical Field

The utility model relates to the technical field of LED display, in particular to a display screen.

Background

In the prior art, an LED small-spacing display screen is formed by splicing a plurality of LED boxes, so that the size of the box is more flexible, the size of the box is as small as possible, the redundancy of hardware performance is caused because each box is provided with a power supply and a control card respectively, the wiring of high-voltage power lines between the boxes is more complicated, adjacent boxes are electrically connected or signal connected through cables, the heat productivity of the cables is large, the low-voltage pressure drop is large, the display effect of a first display screen is influenced, and reliability risks and potential safety hazards exist.

Therefore, the display screen in the prior art has the technical problems of hardware performance redundancy and poor reliability.

Disclosure of Invention

The utility model mainly aims to provide a display screen so as to solve the problems of hardware performance redundancy and poor reliability of the display screen in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a display screen including at least two housings, a HUB board, at least one first connection line, at least one power module, at least one control card module, at least one bus bar assembly, and at least one second connection line, wherein adjacent two housings are detachably connected; the plurality of HUB plates are arranged, and at least one HUB plate is arranged in each box body; HUB plates in two adjacent boxes are connected through a first connecting wire; at least one power module is arranged in at least one box body, and a HUB board in the box body with the power module is electrically connected with the power module; at least one control card module is arranged in the at least one box body and is electrically connected with the HUB board; the HUB board in the box body without the power module is electrically connected with the HUB board or the power module in the adjacent box body through the busbar assembly; the different power modules are connected through a second connecting wire and/or the power modules are connected with an external power supply through the second connecting wire.

Further, the busbar assembly includes a first connection piece, an insulating layer and a second connection piece, wherein at least a portion of the first connection piece and the second connection piece are overlapped with each other, the insulating layer is disposed between the first connection piece and the second connection piece, and both ends of the first connection piece and both ends of the second connection piece are connected with different HUB boards respectively or both ends of the first connection piece and both ends of the second connection piece are connected with the HUB boards and the power module respectively.

Further, both ends of the first connecting piece and both ends of the second connecting piece are respectively provided with an extending part, the extending direction of the extending part is perpendicular to the length direction of the first connecting piece, and the first connecting piece and the second connecting piece are respectively connected with the HUB board or the power module through the corresponding extending parts.

Further, the surfaces of the first connecting piece and the second connecting piece except the other parts with the protruding parts are sprayed with insulating powder.

Further, the insulating layer includes an insulating double-sided tape, and a portion where the first connecting piece and the second connecting piece overlap each other is bonded through the insulating double-sided tape.

Further, the first connecting piece and the second connecting piece are identical in length direction.

Further, the display screen further comprises a third connecting sheet, and the power module is electrically connected with the busbar assembly and/or the HUB board through the third connecting sheet.

Further, the two ends of the second connecting wire are respectively provided with an input end and an output end, the input end and the output end are respectively arranged on different boxes, the second connecting wire is further provided with a connecting branch, the connecting branch is close to the input end relative to the output end, and the connecting branch is connected with the power supply module.

Further, when the number of the second connecting lines is plural, the input end of one of the two adjacent second connecting lines is connected with the output end of the other second connecting line; and/or the input end and the output end of the same second connecting wire are respectively arranged at one side of two adjacent box bodies which are far away from each other.

Further, the display screen further comprises a plurality of fixing pieces, the box body is provided with fixing holes matched with the fixing pieces, two adjacent box bodies are detachably connected through the fixing pieces, and the fixing pieces comprise at least one of fixing pins and fixing screws.

By applying the technical scheme of the utility model, the display screen comprises at least two boxes, a HUB board, at least one first connecting wire, at least one power module, at least one control card module, at least one bus assembly and at least one second connecting wire, wherein two adjacent boxes are detachably connected; the plurality of HUB plates are arranged, and at least one HUB plate is arranged in each box body; HUB plates in two adjacent boxes are connected through a first connecting wire; at least one power module is arranged in at least one box body, and a HUB board in the box body with the power module is electrically connected with the power module; at least one control card module is arranged in the at least one box body and is electrically connected with the HUB board; the HUB board in the box body without the power module is electrically connected with the HUB board or the power module in the adjacent box body through the busbar assembly; the different power modules are connected through a second connecting wire and/or the power modules are connected with an external power supply through the second connecting wire.

The flexibility of display screen size has been guaranteed in the flexible concatenation after the split between two boxes in this scheme, HUB board in two at least boxes shares a power module or control card module, power module has been reduced, control card module's quantity, reduce material cost, prevent that hardware performance is redundant, connect through first connecting wire between two HUB boards in two adjacent boxes, guarantee that a control card module can control two HUB boards simultaneously, connect through the busbar subassembly between two HUB boards in two adjacent boxes, guarantee that a power module can be two HUB boards power supply simultaneously, busbar subassembly area of contact is big and resistance is low, low pressure drop has been reduced, great problem of heavy current transmission pressure drop between the HUB board has been improved, the display effect is better, guarantee the reliability of display screen and reduce the potential safety hazard.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a display screen according to an alternative embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the front structure of a display screen according to an embodiment of the present utility model after two housings are combined;

FIG. 3 is a schematic perspective view showing a combination of two cases of a display screen according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a bus bar assembly of a display screen according to an embodiment of the present utility model;

fig. 5 shows a schematic structural diagram of a display screen assembled by three boxes according to another embodiment.

Wherein the above figures include the following reference numerals:

10. a case; 11. a magnetic attraction part; 20. a HUB board; 30. a first connecting line; 40. a power module; 50. a control card module; 60. a busbar assembly; 61. a first connecting piece; 62. an insulating layer; 63. a second connecting piece; 64. an extension; 70. a second connecting line; 71. an input end; 72. an output end; 73. a connection branch; 80. a third connecting piece; 90. a fixing member; 91. a fixing screw; 100. an LED lamp panel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a display screen in order to solve the problems of hardware performance redundancy and poor reliability of the display screen in the prior art.

As shown in fig. 1 to 4, the display screen includes at least two cases 10, a HUB board 20, at least one first connection line 30, at least one power module 40, at least one control card module 50, at least one bus bar assembly 60, at least one second connection line 70, wherein adjacent two cases 10 are detachably connected; the number of the HUB plates 20 is plural, and at least one HUB plate 20 is arranged in each box 10; the HUB plates 20 in the adjacent two cases 10 are connected by the first connection line 30; at least one power module 40 is provided in at least one of the cases 10, and the HUB board 20 in the case 10 having the power module 40 is electrically connected to the power module 40; at least one control card module 50 is disposed in at least one of the cases 10, and the control card module 50 is electrically connected with the HUB board 20; the HUB board 20 in the case 10 without the power module 40 is electrically connected to the HUB board 20 or the power module 40 in the adjacent case 10 through the bus bar assembly 60; the different power modules 40 are connected through a second connecting wire 70, and the power modules 40 are connected with an external power supply through the second connecting wire 70.

The flexibility of display screen size has been guaranteed in the flexible concatenation after the split in detachably connection between two boxes 10 in this scheme, HUB board 20 in two at least boxes 10 shares a power module 40 or control card module 50, reduce power module 40, the quantity of control card module 50, reduce material cost, prevent that hardware performance is redundant, connect through first connecting wire 30 between two HUB boards 20 in two adjacent boxes 10, guarantee that a control card module 50 can control two HUB boards 20 simultaneously, connect through busbar subassembly 60 between two HUB boards 20 in two adjacent boxes 10, guarantee that a power module 40 can supply power for two HUB boards 20 simultaneously, busbar subassembly 60 area of contact is big and the resistance is low, reduce low pressure drop, the great problem of heavy current transmission pressure drop between HUB boards 20 has been improved, the display effect is better, guarantee the reliability of display screen and reduce the potential safety hazard.

Preferably, the first connection line 30 is a net wire, and the second connection line 70 is a power line.

In this embodiment, the size of each case 10 is the same, 600mm×337.5mm, and the size of the hub board 20 is the same, so that the materials are compatible and the development cost is saved. As shown in fig. 1, the power module 40 is disposed on the lower case 10 of the two adjacent cases 10, the control card module 50 is also disposed on the lower case 10 of the two adjacent cases 10, the number of power supplied by the power module 40 to the HUB board 20 and the number of control card modules 50 to control the HUB board 20 are two, however, in other embodiments, the power module 40 and the control card module 50 may be disposed on any case 10 as required, and the number of power supplied by the power module 40 to the HUB board 20 and the number of control card modules 50 to control the HUB board 20 may be different.

As shown in fig. 4, the bus bar assembly 60 includes a first connection sheet 61, an insulating layer 62, and a second connection sheet 63, wherein at least a portion of the first connection sheet 61 and the second connection sheet 63 are overlapped with each other, the insulating layer 62 is disposed between the first connection sheet 61 and the second connection sheet 63, and both ends of the first connection sheet 61 and both ends of the second connection sheet 63 are respectively connected with different HUB boards 20 or both ends of the first connection sheet 61 and both ends of the second connection sheet 63 are respectively connected with the HUB boards 20 and the power module 40. Thus, one end of the first connecting sheet 61 of the busbar assembly 60 is electrically connected with the HUB plate 20 and the power module 40, the other end of the first connecting sheet 61 is electrically connected with the HUB plate 20 in the adjacent box 10, the power module 40 is ensured to supply power to the HUB plate 20 in the box 10 and the HUB plate 20 in the adjacent box 10 simultaneously, redundancy of the power module 40 is reduced, and the first connecting sheet 61 and the second connecting sheet 63 can be isolated by the arrangement of the insulating layer 62, so that connection between the anode and the cathode is prevented.

Preferably, the protruding portion 64 of the first connection piece 61 connects the low voltage input anodes of the two HUB plates 20, and the protruding portion 64 of the second connection piece 63 connects the low voltage input cathodes of the two HUB plates 20.

As shown in fig. 4, both ends of the first connection piece 61 and both ends of the second connection piece 63 have protruding portions 64, respectively, the extending direction of the protruding portions 64 is perpendicular to the length direction of the first connection piece 61, and the first connection piece 61 and the second connection piece 63 are connected to the HUB board 20 or the power module 40, respectively, through the corresponding protruding portions 64. In this way, the extension 64 extends perpendicular to the length direction of the first connection piece 61, facilitating the installation of the extension 64 with the HUB board 20 or the power module 40.

As shown in fig. 4, the surfaces of the first connection piece 61 and the second connection piece 63 except for the other portions having the protruding portions 64 are sprayed with insulating powder. Thus, the insulating powder can prevent the first connecting sheet 61 and the second connecting sheet 63 from shorting, and ensure the reliability of circuits in the display screen.

As shown in fig. 4, the insulating layer 62 includes an insulating double-sided tape, and a portion where the first connecting piece 61 and the second connecting piece 63 overlap each other is bonded by the insulating double-sided tape. Thus, the insulating double sided tape further prevents electrical connection between the first connection piece 61 and the second connection piece 63, and the insulating double sided tape can adhere the first connection piece 61 and the second connection piece 63, so that the busbar assembly 60 can be integrally detached or moved, and the installation is convenient.

Preferably, the insulating double-sided adhesive is an insulating material such as PET, foam and the like.

As shown in fig. 4, the first connecting piece 61 and the second connecting piece 63 are identical in length direction. In this way, the first connection piece 61 and the second connection piece 63 are assembled conveniently, and the length directions of the first connection piece 61 and the second connection piece 63 are consistent, so that the bus bar assembly 60 is as short as possible, excessive pressure drop is prevented, and manufacturing cost is saved.

As shown in fig. 1 to 3, the display screen further includes a third connection pad 80, and the power module 40 is electrically connected to the bus bar assembly 60 and the HUB board 20 through the third connection pad 80. Thus, one end of the third connecting piece 80 is connected with the output end of the power module 40, the other end of the third connecting piece 80 is connected with the HUB plate 20 and the busbar assembly 60, the power module 40 supplies power to the HUB plate 20 in the box 10 through the third connecting piece 80, the power module 40 supplies power to the adjacent HUB plate 20 in the box 10 through the busbar assembly 60, and it is ensured that one power module 40 supplies power to the HUB plates 20 in the two boxes 10 simultaneously.

The third connection piece 80 is provided in the case 1 having the power module 40, and the third connection piece 80 is not required to be provided in the case 1 having no power module 40.

In the present embodiment, in the case 10 having the power module 40, the first connection piece 61 and the protruding portion 64 of the second connection piece 63, the third connection piece 80, and the HUB plate 20 are fastened by the M4 flat spring pad combination screw; in the case 10 without the power module 40, the first connection piece 61, the protruding portion 64 of the second connection piece 63, and the HUB plate 20 are fastened by M4 flat spring pad combination screws.

As shown in fig. 1 to 3, two ends of the second connection line 70 are respectively input end 71 and output end 72, the input end 71 and the output end 72 are respectively disposed on different boxes 10, the second connection line 70 further has a connection branch 73, the connection branch 73 is close to the input end 71 relative to the output end 72, and the connection branch 73 is connected with the power module 40. In this way, the input end 71 of the second connection wire 70 is connected to an external power source, and the connection branch 73 of the second connection wire 70 is connected to the power module 40, so that the external power source supplies power to the power module 40, thereby ensuring that the power module 40 has enough power.

In the present embodiment, the second connection line 70 is a high-voltage power line, and the power module 40 converts the high-voltage power into a low-voltage power, and is connected to the third connection piece 80 through the positive and negative low-voltage output terminals. The bus bar assembly 60 electrically connects the HUB boards 20 in the adjacent two cases 10, and the first connection line 30 data-connects the HUB boards 20 in the adjacent two cases 10.

As shown in fig. 1 to 3, when the second connection lines 70 are plural, the input end 71 of one of the adjacent two second connection lines 70 is connected to the output end 72 of the other; the input end 71 and the output end 72 of the same second connecting line 70 are respectively disposed at the sides of the two adjacent cases 10 which are far from each other. In this way, the input end 71 of the second connection line 70 in the case 10 at the edge is connected to the external power source, the output end 72 of the second connection line 70 is connected to the input end 71 of another second connection line 70 in the adjacent case 10, and the arrangement of the plurality of second connection lines 70 ensures that the external power source provides electric power to the plurality of power modules 40 at the same time.

It should be noted that, in this embodiment, two boxes 10 are connected into one big box module, when the size of the required display screen is larger, two big box modules adjacent up and down can be connected through the input end 71 and the output end 72, that is, the input end 71 of the big box module located above and the output end 72 of the big box module located below are plugged together, so as to ensure that the external power source can supply power to the power source modules 40 in a plurality of big box modules at the same time, meanwhile, the first connecting wire 30 is connected with the HUB board 20 between two adjacent big box modules, the first connecting wire 30 located at the edge is connected with the HUB board 20 and the external display screen controller, and the external display screen controller is ensured to simultaneously control the control card modules 50 in a plurality of big box modules.

It should be noted that, in this embodiment, when the height of the box 10 in the odd-numbered rows is required for the display screen, one of the large box modules may be split into two boxes 10, the boxes 10 are identical in structure and can be installed in a compatible manner, the busbar assembly 60 is removed, and the supplementary power module 40, the third connection piece 80, the control card module 50 and the second connection wire 70 are connected to the large box modules, so that flexible splicing is facilitated.

As shown in fig. 1, the display screen further includes a plurality of fixing members 90, the case 10 has fixing holes to be fitted with the fixing members 90, two adjacent cases 10 are detachably connected by the fixing members 90, and the fixing members 90 include at least one of fixing pins and fixing screws 91. In this way, the arrangement of the plurality of fixing members 90 ensures the detachable connection between the adjacent two cases 10, ensuring the flexibility of the splice size.

In this embodiment, the fixing screws 91 are screws with limiting steps, the number of the fixing screws 91 is two, the number of the fixing pins is two, the two fixing screws 91 are located between the two fixing pins, the two fixing pins are adopted between the two boxes 10 to be pre-positioned, and then the two boxes 10 are pre-assembled into a whole by fastening the two fixing screws 91 in the middle, so that the flatness of the spliced part in the large box is ensured, and the workload of field installation is reduced.

It should be noted that, in this embodiment, the display screen further includes an LED lamp panel 100, the LED lamp panel 100 is located at a side of the HUB board 20 away from the box 10, the box 10 further includes a magnetic attraction portion 11, the magnetic attraction portion 11 passes through the HUB board 20, the LED lamp panel 100 is magnetically attracted to be fixed on the magnetic attraction portion 11 of the box 10, as shown in fig. 1, the LED lamp panel 100 in this embodiment includes 16 identical LED lamps, and 8 connectors on one HUB board 20 are correspondingly electrically connected with 8 LED lamps, that is, 8 LED lamps are lighted by the HUB board 20 in one box 10.

It should be noted that, in the assembled large box, the number of power modules 40 is determined by the brightness of the LED lamps, when the brightness requirement of the LED lamps is low, the number of power modules 40 may be reduced, and the bus bar assembly 60 may be further extended, that is, one power module 40 may supply power to more of the LED lamps corresponding to the HUB boards 20 in the box 10. In another embodiment, as shown in fig. 5, one power module 40 may supply power to the LED lamps corresponding to the HUB boards 20 in 3 cases 10, and the second connection line 70 in this embodiment is lengthened to pass through 3 cases 10, with an output 72 on the uppermost case 10 and an input 71 on the lowermost case.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: the flexibility of display screen size has been guaranteed in the flexible concatenation after the split in detachably connection between two boxes 10 in this scheme, HUB board 20 in two at least boxes 10 shares a power module 40 or control card module 50, reduce power module 40, the quantity of control card module 50, reduce material cost, prevent that hardware performance is redundant, connect through first connecting wire 30 between two HUB boards 20 in two adjacent boxes 10, guarantee that a control card module 50 can control two HUB boards 20 simultaneously, connect through busbar subassembly 60 between two HUB boards 20 in two adjacent boxes 10, guarantee that a power module 40 can supply power for two HUB boards 20 simultaneously, busbar subassembly 60 area of contact is big and the resistance is low, reduce low pressure drop, the great problem of heavy current transmission pressure drop between HUB boards 20 has been improved, the display effect is better, guarantee the reliability of display screen and reduce the potential safety hazard.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A display screen, comprising:

at least two box bodies (10), wherein two adjacent box bodies (10) are detachably connected;

HUB plates (20), wherein a plurality of HUB plates (20) are arranged, and at least one HUB plate (20) is arranged in each box body (10);

at least one first connection line (30) through which the HUB plates (20) in adjacent two of the cases (10) are connected;

at least one power module (40), at least one power module (40) is arranged in at least one box body (10), and the HUB board (20) in the box body (10) with the power module (40) is electrically connected with the power module (40);

at least one control card module (50), at least one control card module (50) is arranged in at least one box body (10), and the control card module (50) is electrically connected with the HUB board (20);

at least one bus bar assembly (60), the HUB board (20) in the case (10) without the power module (40) being electrically connected to the HUB board (20) or the power module (40) in the adjacent case (10) through the bus bar assembly (60);

at least one second connecting line (70), wherein different power modules (40) are connected through the second connecting line (70) and/or the power modules (40) are connected with an external power supply through the second connecting line (70).

2. The display screen of claim 1, wherein the busbar assembly (60) comprises:

a first connecting piece (61);

an insulating layer (62);

the second connection piece (63), first connection piece (61) with at least a portion of second connection piece (63) superposes each other, insulating layer (62) set up first connection piece (61) with between second connection piece (63), just first connection piece (61) both ends with second connection piece (63) both ends respectively with different HUB board (20) are connected or first connection piece (61) both ends with second connection piece (63) both ends respectively with HUB board (20) and power module (40) are connected.

3. The display screen according to claim 2, wherein both ends of the first connection piece (61) and both ends of the second connection piece (63) have protruding portions (64), respectively, an extending direction of the protruding portions (64) is perpendicular to a length direction of the first connection piece (61), and the first connection piece (61) and the second connection piece (63) are connected with the HUB board (20) or the power module (40), respectively, through the corresponding protruding portions (64).

4. A display screen according to claim 3, characterized in that the surfaces of the first connecting piece (61) and the second connecting piece (63) except for the other parts having the protruding portion (64) are sprayed with insulating powder.

5. A display screen according to claim 2, wherein the insulating layer (62) comprises an insulating double-sided tape by which the portions of the first connecting piece (61) and the second connecting piece (63) overlapping each other are adhered.

6. A display screen according to claim 2, characterized in that the first connecting piece (61) and the second connecting piece (63) are identical in length direction.

7. The display screen according to claim 1, further comprising a third connection pad (80), wherein the power module (40) is electrically connected with the busbar assembly (60) and/or the HUB plate (20) through the third connection pad (80).

8. A display screen according to any one of claims 1 to 7, characterized in that the second connection line (70) has two ends, an input end (71) and an output end (72), respectively, the input end (71) and the output end (72) being provided on different ones of the housings (10), respectively, the second connection line (70) further having a connection branch (73), the connection branch (73) being located closer to the input end (71) than the output end (72), and the connection branch (73) being connected to the power supply module (40).

9. The display screen of claim 8, wherein the display screen is configured to display the display screen,

when the number of the second connection lines (70) is plural, the input end (71) of one of the two adjacent second connection lines (70) is connected to the output end (72) of the other; and/or

The input end (71) and the output end (72) of the same second connecting line (70) are respectively arranged on one side of two adjacent box bodies (10) which are far away from each other.

10. The display screen according to any one of claims 1 to 7, further comprising a plurality of fixing members (90), the case (10) having fixing holes to be fitted with the fixing members (90), adjacent two of the cases (10) being detachably connected by the fixing members (90), and the fixing members (90) comprising at least one of fixing pins and fixing screws (91).