LED display screen

Abstract

The utility model discloses an LED display screen, including bottom shell and the PCB board of being established in bottom shell one side, the array formula arrangement has a plurality of LED lamp pearl to the one side of PCB board of bottom shell is away, the one side of bottom shell is equipped with chain assembly away from PCB board, and chain assembly includes first connecting piece, second connecting piece and fixing piece, first connecting piece fixed connection between the fixed connection of bottom shell, and first connecting piece's both ends are respectively first bending part and second bending part to the first connecting piece of the first bending part and the second bending part of second bending part to the PCB board, and the opposite two sides of bottom shell are equipped with the aperture for accommodating first bending part and second bending part respectively, second connecting piece has opposite first end and second end, and first end is hinged with first bending part, in the utility model embodiment, when the LED display screen splicing of multiple pieces, the gravity center of adjacent screen body can be on same straight line to avoid the emergence of the bright and dark line of splicing, and the flatness of display picture after splicing can be guaranteed, thereby improving the display effect of LED display screen.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and in particular to an LED display screen. Background Technology

[0002] Currently, large LED display screens are generally composed of multiple LED displays spliced ​​together, with adjacent LED displays connected by chain components. This connection structure is usually folded for quick storage. However, the current chain components are entirely located on the bottom shell, away from the PCB board. This makes it difficult to ensure that the centers of gravity of adjacent LED displays are on the same straight line after splicing multiple LED displays. This can easily cause bright and dark lines to appear at the splicing point of two LED displays, thus affecting the display effect. In addition, if the centers of gravity of adjacent screens are not on the same straight line after splicing, it will also affect the flatness of the displayed image, further affecting the display effect. Utility Model Content

[0003] In view of the above problems, embodiments of the present invention are proposed to provide an LED display screen and the LED display screen thereof that solve the above problems or at least partially solve the above problems.

[0004] This utility model embodiment provides an LED display screen, which includes a bottom shell and a PCB board disposed on one side of the bottom shell. Multiple LED beads are arranged in an array on the side of the PCB board facing away from the bottom shell. A chain assembly is provided on the side of the bottom shell facing away from the PCB board. The chain assembly includes a first connector, a second connector, and a fixing member.

[0005] The first connector is fixedly connected to the bottom shell through the fastener;

[0006] The first connector has a first bend and a second bend facing the PCB board at both ends, and the bottom shell has notches on opposite sides for accommodating the first bend and the second bend.

[0007] The second connector has a first end and a second end opposite to each other, the first end being hinged to the first bend.

[0008] Furthermore, when two LED displays are connected, the second end of the second connector of one LED display is hinged to the second bend of the first connector of the other LED display.

[0009] Furthermore, a plurality of fasteners are provided at intervals along the length direction of the first connector.

[0010] Furthermore, the PCB board has clearance grooves on its opposite sides for avoiding rotation of the second connector relative to the first connector.

[0011] Furthermore, the second end of the second connector is capable of rotating clockwise and counterclockwise around the hinge point of the first end.

[0012] Furthermore, the first connector includes a first connecting plate and a second connecting plate separated by a gap, and the first end of the second connector is disposed within the gap at the first bend position and is hinged to the first bend by a half-threaded screw.

[0013] Furthermore, when two LED displays are connected, the second end of the second connector of one LED display is located within the gap at the second bend of the first connector of the other LED display, and is hinged to the second bend by another half-threaded screw.

[0014] Furthermore, the fixing member includes a first fixing plate, a partition plate, a second fixing plate, and a connecting shaft;

[0015] The partition is disposed between the first connecting plate and the second connecting plate, so as to form the gap between the first connecting plate and the second connecting plate;

[0016] The first fixing piece is disposed on the side of the first connecting plate opposite to the second connecting plate, and the second fixing piece is disposed on the side of the second connecting plate opposite to the first connecting plate;

[0017] The connecting shaft passes through the first connecting plate, the partition plate, and the second connecting plate, and its two ends are respectively connected to the first fixing plate and the second fixing plate;

[0018] The first fixing plate and the second fixing plate are fixedly connected to the side of the bottom shell opposite to the PCB board by screws.

[0019] Furthermore, the LED display screen also includes an electrical connector, which includes a first device, a second device, and a flexible flat cable. The two first devices are disposed on two opposite sides of the bottom shell facing away from the PCB board and are electrically connected to the PCB board respectively.

[0020] The first device and the second device are connected by a flexible flat cable;

[0021] The second device is used for electrical connection with an adjacent LED display screen.

[0022] Furthermore, at least two chain assemblies are provided at intervals along the width direction of the bottom shell.

[0023] In the technical solution provided by this utility model embodiment, the LED display screen includes a bottom shell and a PCB board disposed on one side of the bottom shell. Multiple LED beads are arranged in an array on the side of the PCB board facing away from the bottom shell. A chain assembly is provided on the side of the bottom shell facing away from the PCB board. The chain assembly includes a first connector, a second connector, and a fixing member. The first connector is fixedly connected to the bottom shell through the fixing member. The two ends of the first connector are respectively a first bent portion and a second bent portion facing the PCB board. Notches for accommodating the first bent portion and the second bent portion are respectively provided on opposite sides of the bottom shell. The second connector has a first end and a second end facing each other. The first end is hinged to the first bent portion. When two adjacent LED displays are spliced, the first bent portion or the second bent portion of the first connector, which bends towards the PCB board, is connected to the second connector at the other end of the first connector. This ensures that the center of gravity of the adjacent screens is on the same straight line to avoid the appearance of bright and dark lines at the splicing point and to ensure the flatness of the displayed image after splicing, thereby improving the display effect of the LED display screen. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An exploded three-dimensional structural diagram of an LED display screen provided for an embodiment of this utility model;

[0026] Figure 2 A three-dimensional structural schematic diagram of a chain assembly for an LED display screen provided for an embodiment of this utility model;

[0027] Figure 3 A schematic diagram of the connection structure of a chain assembly for an LED display screen provided in an embodiment of this utility model;

[0028] Figure 4 This is a partial three-dimensional structural diagram of two LED displays connected together, provided as an embodiment of the present utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the embodiments of this utility model.

[0030] It should be noted that in the description of this utility model, if the terms "first" or "second" appear, they are only used for the convenience of describing different components or names, and should not be construed as indicating or implying a sequential relationship, relative importance, or implicitly specifying the number of technical features indicated. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, if "and / or" appears throughout the text, it means that it includes three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Please refer to Figure 1 This is an exploded three-dimensional structural diagram of an LED display screen provided in an embodiment of the present utility model. The LED display screen includes a bottom shell 10, a PCB board 20 disposed on one side of the bottom shell 10, and a chain assembly 30 disposed on the side of the bottom shell 10 opposite to the PCB board 20.

[0033] Combination Figure 2-4 The PCB board 20 has multiple LED beads 210 arranged in an array on the side facing away from the bottom shell 10. The chain assembly 30 includes a first connector 310, a second connector 320, and a fixing member 330. The first connector 310 is fixedly connected to the bottom shell 10 through the fixing member 330.

[0034] The first connector 310 has a first bent portion 3101 and a second bent portion 3102 facing the PCB board 20, respectively. The bottom shell 10 has notches 110 on its opposite sides for accommodating the first bent portion 3101 and the second bent portion 3102.

[0035] The second connector 320 has a first end 3201 and a second end 3202, the first end 3201 being hinged to the first bent portion 3101.

[0036] Specifically, the shapes of the bottom shell 10 and the PCB board 20 include, but are not limited to, rectangles or squares. The plurality of LED beads 210 are arranged in an array on the side of the PCB board 20 facing away from the bottom shell 10. Only the plurality of LED beads 210 located at the edge of the PCB board 20 are shown in the figure. The first bending portion 3101 and the second bending portion 3102 are the two ends of the first connector 310 and are formed by bending towards the PCB board 20. The first connector 310 is fixedly connected to the side of the bottom shell 10 facing away from the PCB board 20 by the fixing member 330, so that the first bending portion 3101 and the second bending portion 3102 at both ends of the first connector 310 can extend into the notches 110 on the opposite sides of the bottom shell 10. The first end 3201 of the second connector 320 is also disposed in the notch 110 on this side and is hinged to the first bending portion 3101.

[0037] In this embodiment of the utility model, when two adjacent LED displays are spliced ​​together, the first bent portion 3101 or the second bent portion 3102 of the first connector 310, which bends toward the PCB board 20, is connected to the second connector 320 at the other end of the first connector 310. This allows the center of gravity of the adjacent screens to be on the same straight line to avoid the appearance of bright and dark lines at the splicing point, and ensures the flatness of the displayed image after splicing, thereby improving the display effect of the LED display.

[0038] Furthermore, in other preferred embodiments of the present invention, when two LED displays are connected, the second end 3202 of the second connector 320 of one LED display is hinged to the second bent portion 3102 of the first connector 310 of the other LED display.

[0039] Specifically, when two LED displays need to be folded together, the second end 3202 of the second connector 320 of one LED display is hinged to the second bending portion 3102 of the first connector 310 of the other LED display. This allows the two LED displays to rotate relative to each other with the two ends of the second connector 320 as hinge points, thereby achieving a folded connection between the two LED displays.

[0040] Furthermore, in other preferred embodiments of this utility model, in order to improve the firmness of the connection between the first connector 310 and the bottom shell 10 and improve the reliability when the screen is folded, a plurality of fixing members 330 are provided at intervals along the length direction of the first connector 310. Preferably, the plurality of fixing members 330 can be arranged at equal intervals.

[0041] Furthermore, in other preferred embodiments of this utility model, the PCB board 20 is provided with relief grooves 220 on opposite sides for avoiding the second connector 320 when it rotates relative to the first connector 310.

[0042] Specifically, the clearance groove 220 is configured one-to-one with the configuration of the first connector 310. Its purpose is to allow the second connector 320 to rotate relative to the first connector 310, thereby achieving inward and outward folding between the screens.

[0043] Furthermore, in other preferred embodiments of the present invention, the second end 3202 of the second connector 320 is capable of rotating clockwise and counterclockwise around the hinge point of the first end 3201.

[0044] Specifically, the second end 3202 of the second connector 320 can rotate around the hinge point of the first end 3201 toward the PCB board 20, so that when the two LED displays are folded, the PCB board 20 is folded face to face; the second end 3202 of the second connector 320 can also rotate around the hinge point of the first end 3201 toward the direction away from the PCB board 20, so that when the two LED displays are folded, the bottom shell 10 is folded face to face, thereby improving the versatility of display folding.

[0045] Furthermore, in other preferred embodiments of the present invention, the first connector 310 includes a first connecting plate 311 and a second connecting plate 312 separated by a gap 3103, and the first end 3201 of the second connector 320 is disposed in the gap 3103 at the position of the first bent portion 3101, and is hinged to the first bent portion 3101 by a half-threaded screw 3104.

[0046] Specifically, the first connector 310 is two plate-like structures arranged opposite to each other, namely the first connecting plate 311 and the second connecting plate 312. The first connecting plate 311 and the second connecting plate 312 are separated by the gap 3103, and the second connector 320 is inserted into the gap 3103 and is hinged to the first connecting plate 311 and the second connecting plate 312 on both sides by the half-threaded screw 3104. That is, the second connecting plate 312 is hinged to the first bent part 3101.

[0047] Furthermore, in other preferred embodiments of the present invention, when two LED displays are connected, the second end 3202 of the second connector 320 of one LED display is disposed in the gap 3103 at the position of the second bend 3102 of the first connector 310 of the other LED display, and is hinged to the second bend 3102 by another half-threaded screw 3104.

[0048] Specifically, when two LED displays are connected, both ends of the second connector 320 are inserted into the gap 3103, and are respectively hinged to the first bending part 3101 of one LED display and the second bending part 3102 of the other LED display through the half-threaded screw 3104, so that both ends of the second connector 320 are hinge points, thereby improving the flexibility when the two LED displays are folded relative to each other.

[0049] Furthermore, in other preferred embodiments of this utility model, the fixing member 330 includes a first fixing piece 3301, a partition plate 3303, a second fixing piece 3302, and a connecting shaft (not shown in the figure);

[0050] The partition 3303 is disposed between the first connecting plate 311 and the second connecting plate 312, so that the gap 3103 is formed between the first connecting plate 311 and the second connecting plate 312;

[0051] The first fixing piece 3301 is disposed on the side of the first connecting plate 311 opposite to the second connecting plate 312, and the second fixing piece 3302 is disposed on the side of the second connecting plate 312 opposite to the first connecting plate 311.

[0052] The connecting shaft passes through the first connecting plate 311, the partition plate 3303 and the second connecting plate 312, and its two ends are respectively connected to the first fixing plate 3301 and the second fixing plate 3302;

[0053] The first fixing piece 3301 and the second fixing piece 3302 are fixedly connected to the side of the bottom shell 10 away from the PCB board 20 by screws.

[0054] Specifically, the partition 3303 is sandwiched between the first connecting plate 311 and the second connecting plate 312, so that the gap 3103 is formed between the first connecting plate 311 and the second connecting plate 312; the first fixing piece 3301 and the second fixing piece 3302 are located on the outer sides of the first connecting plate 311 and the second connecting plate 312, that is, the first connecting plate 311 and the second connecting plate 312 are sandwiched in the middle; the connecting shaft is arranged parallel to the bottom shell 10 and passes through the first connecting plate 311, the partition 3303 and the second connecting plate 312 in sequence, and its two ends are respectively connected to the first fixing piece 3301 and the second fixing piece 3302. The first fixing piece 3301 and the second fixing piece 3302 are fixedly connected to the side of the bottom shell 10 away from the PCB board 20 by screws, thereby fixing the first connecting plate 311 and the second connecting plate 312 to the bottom shell 10.

[0055] Furthermore, in other preferred embodiments of the present invention, the LED display screen further includes an electrical connector 40, which includes a first device 410, a second device 420, and a flexible flat cable 430. The two first devices 410 are disposed on two opposite sides of the bottom shell 10 away from the PCB board 20, and are electrically connected to the PCB board 20 respectively.

[0056] The first device 410 and the second device 420 are connected by the flexible flat cable 430;

[0057] The second device 420 is used for electrical connection with an adjacent LED display screen.

[0058] Specifically, the electrical connector 40 is located on two opposite sides of the bottom shell 10 facing away from the PCB board 20, and is composed of the first device 410, the second device 420, and the flexible flat cable 430 between them. The first device 410 is located on two opposite sides of the bottom shell 10 facing away from the PCB board 20, while the flexible flat cable 430 and the second device 420 extend outside the bottom shell 10. The second device 420 is used to make an electrical connection with another LED display when two LED displays are connected. Here, the first device 410 and the second device 420 are generally electrically connected to each group of PCB boards 20 through electrical connectors passing through the bottom shell 10. This electrical connection is used for, but is not limited to, the transmission of current and the transmission of control signals.

[0059] Furthermore, in other preferred embodiments of the present invention, at least two chain assemblies 30 are provided at intervals along the width direction of the bottom shell 10.

[0060] Here, by arranging at least two chain assemblies 30 at intervals along the width direction of the base shell 10, the chain assemblies 30 can be evenly stressed, which helps to maintain the balance of multiple LED displays during splicing and hoisting, and improves the safety of using the LED displays.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An LED display screen comprising a bottom shell and a PCB plate arranged on one side of the bottom shell, a plurality of LED lamp beads are arranged in an array on a side of the PCB plate away from the bottom shell, characterized in that, The bottom shell has a chain assembly on the side facing away from the PCB board. The chain assembly includes a first connector, a second connector, and a fixing member. The first connector is fixedly connected to the bottom shell through the fastener; The first connector has a first bend and a second bend facing the PCB board at both ends, and the bottom shell has notches on opposite sides for accommodating the first bend and the second bend. The second connector has a first end and a second end opposite to each other, the first end being hinged to the first bend.

2. The LED display screen of claim 1, wherein, When two LED displays are connected, the second end of the second connector of one LED display is hinged to the second bend of the first connector of the other LED display.

3. The LED display screen of claim 1, wherein, Multiple fasteners are provided at intervals along the length of the first connector.

4. The LED display screen of claim 1, wherein, The PCB board has clearance grooves on its opposite sides to allow the second connector to rotate relative to the first connector.

5. The LED display screen of claim 4, wherein, The second end of the second connector is capable of rotating clockwise and counterclockwise around the hinge point of the first end.

6. The LED display screen according to any one of claims 1-5, characterized in that, The first connector includes a first connecting plate and a second connecting plate separated by a gap. The first end of the second connector is located within the gap at the first bend and is hinged to the first bend by a half-threaded screw.

7. The LED display screen of claim 6, wherein, When two LED displays are connected, the second end of the second connector of one LED display is located in the gap at the second bend of the first connector of the other LED display, and is hinged to the second bend by another half-threaded screw.

8. The LED display screen of claim 6, wherein, The fastener includes a first fixing plate, a partition, a second fixing plate, and a connecting shaft; The partition is disposed between the first connecting plate and the second connecting plate, so as to form the gap between the first connecting plate and the second connecting plate; The first fixing piece is disposed on the side of the first connecting plate opposite to the second connecting plate, and the second fixing piece is disposed on the side of the second connecting plate opposite to the first connecting plate; The connecting shaft passes through the first connecting plate, the partition plate, and the second connecting plate, and its two ends are respectively connected to the first fixing plate and the second fixing plate; The first fixing plate and the second fixing plate are fixedly connected to the side of the bottom shell opposite to the PCB board by screws.

9. The LED display screen according to any one of claims 1-5, characterized in that, It also includes an electrical connector, which includes a first device, a second device, and a flexible flat cable. The two first devices are disposed on two opposite sides of the bottom shell facing away from the PCB board and are electrically connected to the PCB board respectively. The first device and the second device are connected by a flexible flat cable; The second device is used for electrical connection with an adjacent LED display screen.

10. The LED display screen according to any one of claims 1-5, characterized in that, At least two chain assemblies are provided at intervals along the width direction of the bottom shell.

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