A fast-jointed foldable display screen and integrated display screen machine

Abstract

The present invention discloses a fast-joined foldable display screen and an all-in-one display screen, belonging to the technical field of LED display screens. The technical solution thereof comprises: a mounting chassis; a display screen unit, wherein two display screen units are provided in a vertical direction and are hingedly connected to each other by a hinge folding mechanism; and a latch assembly, wherein the latch assembly is provided between the two display screen units and is used for reinforcing the connection between the two display screen units when they are unfolded into a planar state. The fast-joined foldable display screen and the all-in-one display screen provided by the present invention ensure the stability, strength, accuracy and flatness of the entire display screen before and after folding by means of crossbeams, columns, crossbars, positioning aluminum blocks and latches. At the same time, multiple adjacent display screens can be connected by deflection locks and positioning aluminum blocks to form an all-in-one display screen, thereby expanding the scope of use of the display screen.

Description

Technical Field

[0001] The present invention belongs to the technical field of LED display screens, and in particular relates to a fast-splicing foldable display screen and an all-in-one display screen machine. Background Art

[0002] LED displays are typically used for large displays, but their bulk makes them difficult to install, disassemble, and package for transportation. Folding LED displays can effectively lower their height, making packaging and transport easier. This reduces space usage and allows for convenient transportation and installation, making them suitable for commercial advertising, stage rentals, exhibitions, conferences, and other applications.

[0003] Currently, the most common size for LED display cabinets is 600mm x 337.5mm, with a standard 16:9 ratio. These cabinets are typically made of die-cast aluminum. Compared to sheet metal, die-cast aluminum cabinets offer advantages such as light weight, high flatness, high precision, and seamless splicing. However, die-cast materials have internal stresses, making die-cast aluminum a costly option for cabinets larger than 600mm x 337.5mm. The stress release can also lead to deformation and warping.

[0004] Generally speaking, LED displays fold using hinges, which enable the two connected components to fold or unfold around an axis, similar to the hinges of doors and windows. In existing foldable displays, because the upper half of the display needs to be suspended in mid-air, the middle folding portion bears a heavy load, and in severe cases, it can break. Furthermore, due to the inherent gravity of the LED display, the display is prone to deformation during the folding process. During the manufacturing and placement of LED displays, problems such as poor flatness between display modules due to mechanical stress and non-coplanarity due to mechanical fatigue of the chassis can easily occur. Summary of the Invention

[0005] The first objective of the present invention is to provide a fast-assembly foldable display screen, featuring a low-cost, lightweight, high-strength, and high-precision cabinet unit frame architecture. The display module can be mounted on the cabinet frame with exceptional precision and flatness, maintaining smooth, even folding without significant deformation during folding and unfolding. This allows for repeated folding, facilitating easy use and transportation of the display.

[0006] The second purpose of the present invention is to provide a fast-jointed foldable display all-in-one machine, which connects multiple foldable display screens in the horizontal direction through eccentric locks to form a larger foldable display all-in-one machine to meet the needs of foldable display screens in more situations.

[0007] The object of the present invention is achieved by providing a fast-jointed foldable display screen, comprising:

[0008] Install the chassis;

[0009] A display screen unit, wherein two display screen units are provided in a vertical direction, and the two display screen units are hingedly connected by a hinge folding mechanism; and

[0010] A latch assembly, the latch assembly being disposed between the two display screen units and used for reinforcing the connection between the two display screen units when they are unfolded into a flat state;

[0011] The latch components are arranged on both sides of the hinged arrangement of the two display screen units.

[0012] Furthermore, eccentric wheels are provided at four corners of the bottom of the mounting chassis.

[0013] Furthermore, the display screen unit includes a frame, a display panel provided on one side of the frame, and a back cover provided on the other side of the frame;

[0014] The skeleton includes a cross beam respectively arranged at the upper and lower ends, a plurality of columns vertically fixedly connected to the cross beam, the plurality of columns are evenly distributed between two cross beams, a plurality of cross bars are horizontally arranged between the plurality of columns, and the plurality of cross bars are arranged in sequence in the length direction of the columns.

[0015] Furthermore, the display panel includes a plurality of LED display screen modules, and the plurality of LED display screen modules are fixed on the frame to form a display screen unit.

[0016] Furthermore, the hinge folding mechanism includes two hinge linings, the two hinge linings are hingedly arranged through a hinge rod, and the two hinge linings are respectively fixedly connected to adjacent columns in the two display screen units.

[0017] Furthermore, the latch assembly includes two positioning aluminum blocks and a latch, the two positioning aluminum blocks are respectively fixed on two adjacent columns in the display screen unit, and the latch can penetrate the two positioning aluminum blocks and be fixed on the two positioning aluminum blocks.

[0018] Furthermore, the positioning aluminum block is provided with a pin hole for the pin to pass through and a limiting hole for installing a limiting screw. The pin hole is arranged perpendicular to the limiting hole, and the limiting screw is arranged on the limiting hole. The positioning aluminum block is provided with holes connected to the column and the beam and a limiting hole for installing the other end of the limiting screw.

[0019] Furthermore, the pin hole is provided with a bevel guide groove on the outer end surface of the positioning aluminum block, and the aperture of the pin hole of the positioning aluminum block in the upper display screen unit is larger than the aperture of the pin hole of the positioning aluminum block in the lower display screen unit.

[0020] Furthermore, the display screen unit is provided with an image acquisition module, which is fixed on the crossbeam; the LED display screen module is provided with a receiving card, a power supply and a system mainboard; the image acquisition module, the receiving card, the power supply and the system mainboard are electrically connected.

[0021] A fast-jointed foldable display screen all-in-one machine, wherein a plurality of display screens are arranged in a transverse direction, and the plurality of display screens are connected by fixing an eccentric lock and adjacent positioning aluminum blocks.

[0022] The beneficial effects of the present invention are embodied in:

[0023] In the present invention, by arranging two vertically foldable display screen units on the mounting chassis, the height of the LED display screen can be effectively reduced, and packaging and transshipment can be achieved by folding the LED display screen. This reduces space occupation and enables convenient transportation and installation, making it suitable for scenes such as commercial advertising, performance stage rental, and exhibitions. The two display screen units are relatively hingedly arranged through a hinge folding mechanism. At the same time, a latch assembly is arranged between the two display screen units, and the latch is used to separate the upper and lower display screen units, unlock and fold them, thereby improving the structural strength of the LED display screen in the display screen unit in the upright state. The common splicing accuracy and strength problems of sheet metal boxes are solved by using columns, beams, crossbars, and positioning aluminum blocks. Multiple display screens are horizontally spliced ​​through eccentric locks and adjacent positioning aluminum blocks to form an integrated display screen machine, which is applicable to scenes such as conferences, movie entertainment, and performance stages. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of the display screen of the present invention when it is unfolded;

[0026] Figure 2 This is a schematic diagram of the structure of the display screen of the present invention when it is folded;

[0027] Figure 3 This is a schematic diagram of the explosion structure of the display screen of the present invention;

[0028] Figure 4 This is a box structure diagram of the display screen unit of the present invention;

[0029] Figure 5This is a schematic diagram of the display unit structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the assembly of the display screen module of the present invention;

[0031] Figure 7 This is a schematic diagram of the horizontal structure of the display screen unit of the present invention;

[0032] Figure 8 This is a schematic diagram of the crossbar connection structure of the present invention;

[0033] Figure 9 This is a detailed view of two display screen units of the present invention unfolded in the vertical direction;

[0034] Figure 10 This is a detailed diagram of two display screen units folded in the vertical direction according to the present invention;

[0035] Figure 11 This is a schematic diagram of the connection between the upper and lower positioning aluminum blocks of the present invention;

[0036] Figure 12 This is a schematic diagram of the partial structure of the bevel guide groove of the present invention;

[0037] Figure 13 This is a schematic structural diagram of the latch assembly of the present invention;

[0038] Figure 14 This is a partial schematic diagram of the connection between two columns of the present invention;

[0039] Figure 15 This is a schematic diagram of the positioning aluminum block structure of the present invention;

[0040] Figure 16 Schematic diagram of the skeleton structure of the present invention;

[0041] Figure 17 This is a schematic structural diagram of the display screen of the present invention without the back cover;

[0042] Figure 18 Schematic diagram of the back structure of the display screen when the display screen is unfolded in an embodiment of the present invention;

[0043] Figure 19 This is a schematic diagram of the concave portion of the display screen module of the present invention;

[0044] Figure 20 This is a schematic diagram of the convex display screen module of the present invention;

[0045] Figure 21 This is a schematic diagram of the twisting of the display screen module of the present invention;

[0046] Figure 22 A schematic diagram of the positions of multiple display screen units in the horizontal direction on a reference plane according to the present invention;

[0047] Figure 23 This is a schematic diagram of a reference plane determined by positioning aluminum blocks for multiple display screen units of the present invention;

[0048] Figure 24 This is a plan view schematically showing two display screen units connected in a horizontal direction according to the present invention;

[0049] Figure 25 This is a schematic diagram of the connection of two positioning aluminum blocks in the horizontal direction of the present invention;

[0050] Figure 26 This is a structural diagram of the all-in-one display screen machine of the present invention in a folded state;

[0051] Figure 27 This is a structural diagram of the integrated display screen machine of the present invention in an unfolded state;

[0052] Figure 28 Schematic diagram a of the structure of the module of the present invention after being folded and placed in an aviation box;

[0053] Figure 29 FIG. b is a structural diagram of the module of the present invention after being folded and placed in an aviation box. FIG.

[0054] In the accompanying drawings, 1-mounting chassis, 2-display unit, 3-hinge folding mechanism, 4-latch assembly, 5-eccentric wheel, 6-skeleton, 7-display panel, 8-back cover, 9-crossbeam, 10-column, 11-LED display module, 12-eccentric lock, 13-hinge lining, 14-hinge rod, 15-positioning aluminum block, 16-latch, 17-latch hole, 18-limiting screw, 19-thread limiting hole, 20-bevel guide groove, 21-image acquisition module, 22-receiving card, 23-power supply, 24-system mainboard, 25-cross bar, 26-hole position, 27-limiting hole, 28-eccentric lock, 29-horizontal gap, 30-longitudinal gap, 31-folding display, 32-reference surface, 33-cross bar mounting seat, 34-handle, 35-air box. DETAILED DESCRIPTION

[0055] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0056] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0057] Reference Figure 1-Figure 29 , a fast-jointed foldable display screen, comprising:

[0058] Install chassis 1;

[0059] A display screen unit 2, wherein two display screen units 2 are provided in the vertical direction, and the two display screen units 2 are hingedly connected by a hinge folding mechanism 3; and

[0060] The latch assembly 4 is arranged between the two display screen units 2 and is used to reinforce the connection between the two display screen units 2 when they are unfolded into a flat state; the latch assembly 4 is provided on both sides of the hinged arrangement of the two display screen units 2.

[0061] By arranging two vertically foldable display screen units 2 on a mounting chassis 1, the foldable LED display screen can effectively reduce its height, facilitate packaging and transportation. This reduces space usage, allows for convenient transportation and installation, and is suitable for commercial advertising, stage rentals, exhibitions, conferences, and other scenarios. The two display screen units 2 are hinged relative to each other via a hinge folding mechanism 3. Furthermore, a latch assembly 4 is provided between the two display screen units 2, allowing the latch 16 to separate the upper and lower display screen units 2 and unlock and fold them, thereby improving the structural strength of the LED display screen in the display screen unit 2 when in an upright position.

[0062] It should be emphasized that the display screen unit 2 forms a box structure by assembling the frame 6 and the LED display screen module 11 .

[0063] The mounting chassis 1 is equipped with eccentric wheels 5 at each of its four corners. As a preferred method in this embodiment, to ensure the chassis' coplanarity, adjustable and fixed-height Foma wheels are used. Adjusting the height of the wheels adjusts the horizontal position of the LED display for precise placement. Because the LED display needs to be fixed to the mounting chassis for easy movement, a relatively stable T-shaped plate is provided to increase support strength, achieving direct right-angle support without diagonal bracing, thereby enhancing the mounting chassis' strength in supporting the LED display.

[0064] Preferably, the display screen unit 2 includes a frame 6, a display panel 7 provided on one side of the frame 6, and a back cover 8 provided on the other side of the frame 6;

[0065] The skeleton 6 includes cross beams 9 provided at the upper and lower ends, and a plurality of columns 10 vertically fixedly connected to the cross beams 9 . The plurality of columns 10 are evenly distributed between the two cross beams 9 .

[0066] Specifically, this solution proposes a sheet metal structure for an LED display screen, which constructs a main frame through beams, columns, and crossbars, combined with high-precision, high-strength positioning aluminum blocks formed by 3D printing or CNC processing. Based on the cooperation of the two, a large-size, high-precision, high-strength, light-weight, high-flatness, and low-cost LED sheet metal display unit is realized.

[0067] If die-cast aluminum is used to process the cabinet, in order to ensure good consistency and flatness of the display modules used to splice the screen, the die-cast cabinet must have high structural strength and small material deformation, resulting in high costs. Die-cast materials have internal stress, and using die-cast materials to make large cabinets exceeding 600mm×337.5mm is costly, and will cause deformation and warping when the stress is released. Although display screens made using sheet metal technology can be low-cost, LED display screens spliced ​​together from sheet metal cabinets have problems such as poor flatness, poor precision, and low structural strength. This solution solves the problems of poor splicing flatness, low structural strength, and poor precision of sheet metal cabinets through the use of beams, columns, crossbars, and positioning aluminum blocks.

[0068] By arranging two vertically foldable display screen units on a mounting chassis, the foldable LED display screen can effectively reduce its height, making it easier to package and transport. This reduces space usage, facilitates convenient transportation and installation, and is suitable for scenarios such as commercial advertising, stage rentals, and exhibitions. The two display screen units are hinged relative to each other via a hinge folding mechanism. Furthermore, a latch assembly is provided between the two display screen units, allowing them to be separated and unlocked for folding, thereby improving the structural strength of the LED display screen in the upright position.

[0069] This patent adopts the structure of columns 10, beams 9 and crossbars 25 to ensure the strength and precision of the structure, and adopts positioning aluminum blocks 15 and latches 16 to ensure the structural stability of the upper and lower parts of the LED display screen. Among them, the crossbars 25 are respectively set at the upper and lower parts of the entire LED display screen. The crossbars 25 can be regarded as the horizontal optical axis. The crossbars 25 use horizontal solid optical rods to achieve precision and positioning, and are torsion-resistant. The vertical positioning is carried out by columns 10 and crossbars 9 to ensure the flatness and precision of the LED module splicing. Since the display screen is subjected to greater force in the vertical direction, 8 columns 10 with a wider width are set in the vertical direction. The horizontal force is supported by the crossbars 25 and crossbars 9 to ensure the structural strength, stability and splicing flatness of the entire screen.

[0070] For example, a chrome-plated optical axis can be used for the crossbar 25. If a chrome-plated optical axis passes through the two positioning blocks, a good lateral constraint can be achieved between the two positioning blocks, ensuring that they are aligned on the same reference plane. During operation, when the two display screen units 2 are unfolded or folded, the horizontal crossbar 25 can be lifted to separate the upper and lower aluminum blocks.

[0071] As a preferred embodiment of this invention, the mounting chassis 1 may be configured as two separate base plates.

[0072] As a preferred embodiment of this invention, more than two latch assemblies 4 are provided between the two display screen units 2, and the more than two latch assemblies 4 are evenly distributed between the two display screen units 2, thereby improving the stability of the connection between the two display screen units 2.

[0073] As a preferred embodiment of the present invention, two latch assemblies 4 are provided, and the two latch assemblies 4 are provided at the positions where the two display screen units 2 are connected.

[0074] Preferably, the display panel 7 includes a plurality of LED display screen modules 11 , and the plurality of LED display screen modules 11 are fixed on the frame 6 to form one display screen unit 2 .

[0075] As a preferred embodiment of this invention, the display screen unit 2 is composed of multiple 320mm×160mm LED display screen modules 11. Eighteen LED display screen modules 11 can form a 960mm×960mm display screen unit 2. Each LED display screen module 11 is secured to the sheet metal enclosure via retaining screws. A single LED module consists of an LED light board, a plastic base, a surface encapsulation adhesive for the lamp beads formed using a GOB (glue on the board) process, and screws. The LED light board comprises red, green, and blue LED lamp beads, a driver chip, and a PCBA board. The LED light board is connected to the plastic base via screws. Multiple screw holes are provided on the rear housing of a single LED module.

[0076] Reference Figure 5 and Figure 19-21If the display modules 11 or display units 2 are arranged in a vertical and horizontal array, there will be horizontal and vertical gaps between the display modules or display units. A single display module 11 is a 320×160mm square structure. The step difference in the vertical gap is due to the deformation of the display module 11 being magnified by the 320mm size, while the step difference in the horizontal gap is due to the deformation of the display module 11 being magnified by the 160mm size. Assuming that both dimensional deviations are caused by the same reason, the step difference in the vertical gap is significantly higher than the horizontal gap, so vertical gaps are more likely to occur than horizontal gaps.

[0077] Therefore, poor splicing gaps often occur primarily along the longitudinal edges. There are three main types of module deformation: inward concavity, outward convexity, and torsion, each with varying degrees of severity. Torsion can be addressed through the coordination of positioning posts and positioning holes. Each LED display module 11 is equipped with several positioning posts, and corresponding positioning holes are drilled into the sheet metal enclosure. These positioning holes are located on the aforementioned columns and crossbeams 9, effectively addressing the torsion problem of the LED display module 11.

[0078] The problem of concave is often caused by overtightening the screws fixing the LED display module 11. This can also be solved by adjusting the tightness of the screws. The problem of convex can also be solved by adjusting the tightness of the fixing screws.

[0079] When securing the modules to the cabinet, the ideal approach is to treat the rear surfaces of all modules as ideal planes, tightening each module in the correct position onto a uniform reference plane. This achieves high flatness and consistency. The gap between each module's joints is a step difference. Multiple LED display modules 11 form a display unit 2. Two display units 2 are secured to a high-strength positioning aluminum block 15. Simply ensuring the multiple positioning aluminum blocks are on the same horizontal plane ensures that the modules are on the same horizontal plane, effectively avoiding step differences at the joints.

[0080] Preferably, the hinge folding mechanism 3 includes two hinge linings 13 , which are hingedly connected via a hinge rod 14 , and the two hinge linings 13 are fixedly connected to adjacent columns and beams in the two display screen units 2 , respectively.

[0081] The two display screen units 2 provided in the present application are connected via a hinge folding mechanism 3, so that the entire LED display screen can be folded and unfolded 180° between the upper half and the lower half.

[0082] Optionally, in order to achieve a certain stability during the folding process, the connection between the two hinge linings 13 is made to have a certain friction at the connection position through the hinge rod 14, which can also ensure that the folding strength of the LED display is sufficient and will not be deformed during the folding process.

[0083] Preferably, the latch assembly 4 includes two positioning aluminum blocks 15 and a latch 16, the two positioning aluminum blocks 15 are respectively fixed on two adjacent columns in the display screen unit 2, and the latch 16 can penetrate the two positioning aluminum blocks 15 and be fixed on the two positioning aluminum blocks 15.

[0084] Reference Figure 9 and Figure 10 Due to the need for the folding function of the display screen, two display screen units 2 are set, and the two display screen units 2 are folded in the vertical direction. In order to improve the overall stability when the two display screen units 2 are stretched into a flat state during folding use, a latch assembly 4 is installed on the adjacent columns of the display screen unit 2. A positioning aluminum block 15 fixed in the column is set in the latch assembly 4. The positioning aluminum block 15 is processed by CNC and has multiple holes processed by laser cutting.

[0085] Preferably, the positioning aluminum block 15 is provided with a pin hole 17 for the pin 16 to pass through and a threaded limiting hole 19 for installing a limiting screw 18. The pin hole 17 is arranged vertically to the threaded limiting hole 19, and the threaded limiting hole 19 is provided with the limiting screw 18. The positioning aluminum block 15 is provided with a hole position 26 connected to the column and the beam and a limiting hole 27 for installing the other end of the limiting screw 18.

[0086] The positioning aluminum block 15 is provided with corresponding holes to realize its own installation and installation of corresponding bolts or screws; specifically, three holes 26 are provided on the front and back of the positioning aluminum block 15 for connecting the columns and beams at the same time.

[0087] Optionally, two of the holes are blind and one is a through hole. Blind holes are provided on both sides of the positioning aluminum block 15 for further horizontal fixation to the column 10. A larger-diameter latch hole 17 and a threaded limit hole 19 are provided in the middle of the aluminum block for securing and limiting latch 16. When the limit screw 18 is loosened, latch 16 can be pulled out to fold the entire display screen. When latch 16 is inserted, the limit screw 18 is tightened to place the display screen upright. Hole 26 can be a blind hole for simultaneously connecting the column 10 and the crossbeam 9 to achieve positioning. The through hole is used to lock and clamp the column 10. The splicing strength of the display screen is ensured by the positioning aluminum block 15.

[0088] Furthermore, the positioning aluminum block 15 has three functions: first, it connects the uprights 10 and crossbeams 9 via multiple threaded stop holes 19 to ensure their precise positioning and flatness; second, it provides latch holes 17, which unlock and secure the upper and lower screens by moving the pins up and down, ensuring the accurate positioning of the display box during folding; and third, it provides side stop holes for horizontally splicing the screens to form an all-in-one display. Optionally, a handle 34 can be provided on the latch 16 to facilitate its operation.

[0089] Preferably, the latch hole 17 is located on the outer end surface of the positioning aluminum block 15 and is provided with a bevel guide groove 20, and the aperture of the latch hole of the positioning aluminum block in the upper display screen unit is larger than the aperture of the latch hole of the positioning aluminum block in the lower display screen unit; in order to facilitate the pin to better shuttle in the up and down directions, it is set to a structure with a larger upper part and a smaller lower part, so that the pin will not cause obvious structural blockage when it does not move to the appropriate position.

[0090] In practice, the main problem with this solution is that the latch 16 is often difficult to insert through the upper positioning aluminum block 15 into the lower positioning aluminum block 15. This is because there is a certain degree of assembly deviation between the upper and lower housings, resulting in some misalignment of the holes in the upper and lower positioning blocks. To address this, a deeper chamfer is provided on the positioning aluminum block 15 to guide the latch 16 more smoothly into the positioning aluminum block 15.

[0091] The upper and lower aluminum blocks 15 in the center have different apertures, with the upper block smaller than the lower. After tightening, the apertures become equal, allowing the housing to be adjusted for offset by tightening the screws. A beveled guide groove 20 is built into the aluminum block's latch hole 17 to guide the latch 16 for easier insertion into the block.

[0092] To ensure the foldable display's strength, two latches 16 are installed on the back of the display. These latches 16 insert into pre-cut mounting holes on the back panel to connect the upper and lower parts of the LED display. These latches 16 effectively transmit force and withstand loads, enhancing the structural strength of the LED display in its upright position. To fold the LED display, the latches 16 are lifted from the notches in the back panel, separating the lower and upper halves and unlocking the folding function.

[0093] As a preferred embodiment of this invention, based on the eight columns, four beams, four crossbars and positioning aluminum block structure in this patent, a conventional 320mm×160mm conventional LED module with a bottom shell is used to splice a large-size sheet metal box. The flatness is not lower than that of a die-cast box, the step difference can be less than 0.1mm, and the cost is lower. The hinge folding structure, the latch structure and the positioning aluminum block can realize 180° folding of the LED display screen, which is convenient for storage and transportation. The foldable LED display screen based on the sheet metal structure in this patent has a cost advantage, with low mold opening, processing and material costs, simple process, and can be quickly iterated.

[0094] As a preferred embodiment of this embodiment, the size of a single LED display screen module is 320 mm × 160 mm, and the size of a single box is 960 mm × 640 mm.

[0095] As a preferred embodiment of this embodiment, the size of a single LED display screen module is 160 mm × 160 mm, and the size of a single box is 480 mm × 480 mm.

[0096] Preferably, the display screen unit 2 is provided with an image acquisition module 21, and the image acquisition module 21 is fixedly set on the beam 9. The LED display screen module 11 is provided with a receiving card 22, a power supply 23 and a system mainboard 24, and the image acquisition module 21, the receiving card 22, the power supply 23 and the system mainboard 24 are electrically connected.

[0097] The receiving card, power supply, and system board are screwed to the LED module and electrically connected to the LED module via flat cables. The receiving card receives video and image signals, while the system board acts as a multimedia player. Each LED module is secured to the column using screws and module connectors. Multiple LED modules are positioned and fixed to form a spliced ​​display panel. The mounting chassis is screwed to the bottom crossbeam and reinforced with T-shaped plates. Four eccentric wheels are located beneath the mounting chassis to facilitate movement of the LED display. The image acquisition module is screwed to the crossbeam above the display and is used for image acquisition, video monitoring, facial recognition, and other functions.

[0098] The two products are folded and joined together to form a folding display screen 31, which can be easily placed in an air box 35 for logistics turnover. When the screen is folded, its outer dimensions are less than 1 meter high and relatively thin. The folding box is designed separately from the chassis, allowing the folding box to be disassembled and boxed for transportation. The modules of the folding screen are easily bumped, so using an air box for turnover logistics can better protect the screen from bumps and can also be quickly deployed in any scenario.

[0099] A quick-splicing foldable display all-in-one machine, wherein the display screens are arranged in the horizontal direction. It should be emphasized that the display screen referred to here is a display screen formed by splicing two upper and lower display screen units 2, and the multiple display screens are connected in the horizontal direction by eccentric locks and adjacent positioning aluminum blocks 15. In order to achieve an extended connection between two foldable display screens, multiple such display screens can be arranged for splicing in the horizontal direction, thereby forming an all-in-one display screen with a larger display area. In order to achieve a fixed connection between multiple display screens, an eccentric lock 28 can be set to fix the splicing between two adjacent display screens. At the same time, the protruding part of the limit screw 18 set between the adjacent positioning aluminum blocks 15 between the two display screens is used as a positioning column, and the positioning column is connected to the limiting hole 27 set on the other positioning aluminum block 15 that needs to be relatively connected, so as to achieve the positioning, matching and fixed installation between the two adjacent positioning aluminum blocks 15.

[0100] The horizontal limit screws 18 between the positioning aluminum blocks 15 serve as positioning columns, and a relatively large clearance between the holes and the shafts can be reserved. This allows for greater dimensional deviations during the splicing process, enabling easy and quick splicing without requiring a tight fit. The screen can be further aligned when the zipper is tightened.

[0101] It should be emphasized that, on the same latch assembly 4, a limit screw 18 is used to thread the threaded limit hole 19 on one of the positioning aluminum blocks 15, and the latch 16 passing through the two positioning aluminum blocks is locked and fixed; at this time, when the two horizontal display screens are installed relative to each other, the protruding part of the limit screw is aligned with the countersunk hole on the positioning aluminum block 15 on the other display screen for installation; thus, it can be understood that the limit screws on the two display screens are staggered, which not only realizes the fixation of the latch on the positioning aluminum block itself, but also realizes the alignment and clamping installation with the countersunk hole on the positioning aluminum block on the other display screen.

[0102] It can be understood that the display panel 7 is configured to be spliced ​​together by multiple LED display screen modules 11, and multiple full-color LED display screen modules 11 emit light to form a display screen. In order to improve the stability between the interconnected LED display screen modules 11, especially the connection and tightening between two horizontal LED display screen modules, an eccentric lock 28 is used for connection. The eccentric mechanism can be used to achieve a self-locking function without the need for additional external force. At the same time, tension can be applied in the horizontal direction to achieve lateral tightening. The self-locking and lateral tightening characteristics of the eccentric lock can improve the stability and safety of the connection between the LED display screen modules that need to be connected in the two display screens.

[0103] It should be explained that the eccentric lock 28 is a locking structure commonly used in the prior art, and its principle is based on the design of the eccentric member, so that during the clamping process, the workpiece is firmly fixed in a predetermined position. This mechanism is usually driven by pneumatic or hydraulic means, and the workpiece is clamped by the force-increasing and locking effect of the inclined wedge. In the technical solution of the present application, in order to achieve the installation of multiple display screen units in the horizontal direction, the two closely spliced ​​display screen units are connected and reinforced in a close position by setting an eccentric lock 28. The specific connection method is that when the two screens are horizontally spliced, the first is to align and match the limit screw 18 as the positioning column with the countersunk hole on the positioning aluminum block 15. At this time, if there is a deviation between the two screens, it can be corrected by the positioning column, and then locked and fixed with the eccentric lock, so that fast multi-screen splicing can be achieved.

[0104] The working principle and working process of the present invention:

[0105] The fast-jointed foldable display screen provided by the present invention is used by setting two display screen units 2 that can be folded in the vertical direction on a set installation chassis 1. By folding the LED display screen, its height can be effectively reduced, and it can be packaged and transported. Reducing space occupancy can achieve convenient transportation and installation, and is suitable for scenes such as commercial advertising, performance stage rental, exhibitions, and conferences; and the two display screen units 2 are relatively hingedly set through a hinge folding mechanism 3. At the same time, by setting a latch assembly 4 between the two display screen units 2, the latch 16 is used to separate the upper and lower display screen units 2 of the display screen and unlock and fold them, thereby improving the structural strength of the LED display screen in the display screen unit 2 in the upright state; and the common splicing accuracy and strength problems of sheet metal boxes are solved by the columns 10, beams 9, crossbars 25 and positioning aluminum blocks 15.

[0106] Furthermore, in order to expand the scope of application of the display screen, multiple foldable display screens are laterally fixedly connected through eccentric locks and adjacent positioning aluminum blocks, thereby forming a quick-jointed foldable display screen all-in-one machine, forming a larger foldable display screen all-in-one machine, which can be used in scenes such as conferences, movie entertainment, and performance stages.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A fast-jointed foldable display screen, characterized in that: include: Install the chassis (1); A display screen unit (2), wherein two display screen units (2) are provided in a vertical direction, and the two display screen units (2) are hingedly connected via a hinge folding mechanism (3); and A latch assembly (4), the latch assembly (4) being arranged between the two display screen units (2) and used for reinforcing the connection between the two display screen units (2) when they are unfolded into a planar state; The latch assembly (4) is provided on both sides of the hinged arrangement of the two display screen units (2); The display screen unit (2) comprises a frame (6), a display panel (7) arranged on one side of the frame (6), and a back cover (8) arranged on the other side of the frame (6); The skeleton (6) includes a crossbeam (9) provided at the upper and lower ends respectively, a plurality of columns (10) vertically fixedly connected to the crossbeam (9), the plurality of columns (10) being evenly distributed between two of the crossbeams (9), a plurality of crossbars (25) being transversely provided between the plurality of columns (10), and the plurality of crossbars (25) being sequentially provided in the length direction of the columns (10); The latch assembly (4) comprises two positioning aluminum blocks (15) and a latch (16), wherein the two positioning aluminum blocks (15) are respectively fixedly arranged on two adjacent upright posts in the two display screen units (2), and the latch (16) can penetrate the two positioning aluminum blocks (15) and be fixedly arranged on the two positioning aluminum blocks (15); The positioning aluminum block (15) is provided with a pin hole (17) for the pin (16) to pass through and a threaded limiting hole (19) for installing a limiting screw (18), the pin hole (17) and the threaded limiting hole (19) are arranged vertically, the threaded limiting hole (19) is provided with the limiting screw (18), and the positioning aluminum block (15) is provided with a hole position (26) connected to the column and the beam and a limiting hole (27) for installing the other end of the limiting screw (18); The latch hole (17) is located on the outer end surface of the positioning aluminum block (15) and is provided with a bevel guide groove (20). The aperture of the latch hole of the positioning aluminum block in the upper display screen unit is larger than the aperture of the latch hole of the positioning aluminum block in the lower display screen unit.

2. The fast-jointed foldable display screen according to claim 1, wherein: The bottom of the mounting chassis (1) is provided with eccentric wheels (5) at four corners.

3. The fast-jointed foldable display screen according to claim 1, wherein: The display panel (7) comprises a plurality of LED display screen modules (11), and the plurality of LED display screen modules (11) are fixed on the frame (6) and form a display screen unit (2).

4. The fast-jointed foldable display screen according to claim 1, wherein: The hinge folding mechanism (3) comprises two hinge linings (13), the two hinge linings (13) are hingedly arranged via a hinge rod (14), and the two hinge linings (13) are respectively fixedly connected to adjacent columns in the two display screen units (2).

5. The fast-jointed foldable display screen according to claim 3, characterized in that: The display screen unit (2) is provided with an image acquisition module (21), which is fixedly arranged on the crossbeam (9). The LED display screen module (11) is provided with a receiving card (22), a power supply (23) and a system mainboard (24), and the image acquisition module (21), the receiving card (22), the power supply (23) and the system mainboard (24) are electrically connected.

6. A fast-jointed foldable display screen all-in-one machine, characterized in that: The invention comprises a display screen as described in any one of claims 1 to 5, wherein a plurality of the display screens are arranged in a transverse direction, and the plurality of the display screens are connected by fixing an eccentric lock (28) and adjacent positioning aluminum blocks (15).

Images