Display device

Abstract

The utility model discloses a display device, and relates to the technical field of information display and display. The display device comprises a plurality of display screen assemblies, every two adjacent display screen assemblies can be spliced and fixed, each display screen assembly comprises a display screen body, a lifting structure and an electric connection structure, and the display screen bodies in every two adjacent display screen assemblies can be spliced; the lifting structure comprises a lifting main body and a controller electrically connected with the lifting main body, and the lifting main body is in driving connection with the display screen to drive the display screen body to lift; the electric connection structure is arranged on the lifting main body and is electrically connected with the controller; the controllers in every two adjacent display screen assemblies are electrically connected through an electric connection structure. According to the technical scheme provided by the utility model, the applicability of the display device is improved, and meanwhile, the operation convenience and the use reliability of the display device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to information display and demonstration technical field, especially display device. BACKGROUND

[0002] Traditional display device is usually set as single large display screen to meet the demand of super large visual surface in stage performance, meeting exhibition and the like. However, single large display screen cannot flexibly adjust the size of display screen, leading to limited applicable scene.

[0003] Most of the existing display device is formed by splicing multiple display screens to form super large visual surface, and the splicing quantity is adjusted to adapt to the demand of different scenes. However, the display screen in the existing display device can only adjust the height of single display screen before splicing, and the height of the whole display device cannot be adjusted after splicing, leading to problems such as complicated splicing process, misalignment of splicing, and the like, and the use is still limited, affecting the operation convenience and use reliability. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a display device, which aims to improve the applicability of the display device, and improve the operation convenience and use reliability of the display device.

[0005] To achieve the above purpose, the display device provided by the utility model comprises multiple display screen assemblies, and adjacent two display screen assemblies can be spliced and fixed.

[0006] The display screen bodies in adjacent two display screen assemblies can be spliced.

[0007] The lifting structure comprises a lifting main body and a controller electrically connected with the lifting main body, and the lifting main body is drivingly connected with the display screen to drive the display screen body to lift.

[0008] The electric connection structure is arranged on the lifting main body and electrically connected with the controller, and the controllers in adjacent two display screen assemblies are electrically connected through the electric connection structure.

[0009] In an embodiment, the electric connection structure comprises a lifting cascade interface arranged on the side surface of the lifting main body and electrically connected with the controller, the lifting cascade interfaces in adjacent two display screen assemblies can be electrically connected through a first connecting cable, and the first connecting cable is plugged into the lifting cascade interface.

[0010] In an embodiment, the side of the lifting main body is provided with a first wiring groove, the lifting level connection interface is communicated with the first wiring groove, and the first wiring grooves in two adjacent groups of display screen assemblies can be relatively communicated to accommodate the first connection cable.

[0011] In an embodiment, the lifting main body comprises:

[0012] a base, the electrical connection structure and the controller are arranged in the base;

[0013] a column, which is arranged in the base and is hollow;

[0014] an electric lifting column, which is movably arranged in the column and is electrically connected with the controller, and is drivenly connected with the display screen body to drive the display screen to lift.

[0015] In an embodiment, the lifting structure further comprises:

[0016] a sliding block, the sidewall of the column is provided with a guide groove, the sliding block has a connecting end and a sliding end, the connecting end is connected with the display screen body, and the sliding end is slidably arranged in the guide groove;

[0017] a first rolling member, which is arranged at the sliding end, abuts against the groove wall of the guide groove and can roll along the groove wall of the guide groove; and

[0018] a second rolling member, which is arranged at the sliding end and has an axial direction perpendicular to that of the first rolling member, abuts against the other groove wall of the guide groove and can roll along the other groove wall of the guide groove.

[0019] In an embodiment, the display screen assembly further comprises a fixed frame, the display screen body is arranged in the fixed frame, and opposite sides of the fixed frame are provided with a first connecting surface and a second connecting surface, the first connecting surface can be connected with and abut against the second connecting surface in an adjacent display screen assembly.

[0020] In an embodiment, the first connecting surface is provided with a first positioning hole and a first positioning column, the second connecting surface is provided with a second positioning hole and a second positioning column, and the first positioning hole and the first positioning column can be correspondingly inserted into the second positioning column and the second positioning hole in an adjacent display screen assembly.

[0021] In an embodiment, the display screen assembly further comprises a protective frame, one of the protective frames is rotatably connected to each of the opposite sides of the fixed frame, and the two protective frames can respectively cover or expose the first connecting surface and the second connecting surface.

[0022] In an embodiment, the display screen assembly further comprises a magnetic structure arranged between one of the protective frames and the first connecting surface and between the other protective frame and the second connecting surface.

[0023] When the protective frames expose the first connecting surface and the second connecting surface, the magnetic structure can position the corresponding protective frames on the first connecting surface and the second connecting surface.

[0024] In an embodiment, the display screen assembly further comprises a control box arranged on the fixed frame, the first connecting surface is provided with a wireless sending module, the second connecting surface is provided with a wireless receiving module, and the control box is electrically connected with the wireless sending module and the wireless receiving module.

[0025] When the display screen bodies in two adjacent display screen assemblies are spliced, the wireless sending module is opposite to the wireless receiving module in the adjacent display screen assembly.

[0026] In the technical scheme of the display device, the display device comprises a plurality of display screen assemblies, two adjacent display screen assemblies can be spliced and fixed, each display screen assembly comprises a display screen body, a lifting structure and an electrical connection structure, and the display screen bodies in two adjacent display screen assemblies can be spliced; the lifting structure comprises a lifting main body and a controller electrically connected with the lifting main body, the lifting main body is drivingly connected with the display screen to drive the display screen body to lift; the electrical connection structure is arranged on the lifting main body and is electrically connected with the controller; and the controllers in two adjacent display screen assemblies are electrically connected through the electrical connection structure. Compared with the display device in the prior art which can only adjust the height of a single display screen before splicing, the technical scheme of the display device comprises an electrical connection structure, which can connect the controllers in two adjacent display screen assemblies after the display screen bodies in the two adjacent display screen assemblies are spliced, so that the controllers in the two adjacent display screen assemblies can transmit information to each other, thereby synchronously controlling the actions of the corresponding lifting main bodies and flexibly adjusting the overall height of the display device after splicing. In this way, by adjusting the number of spliced display screen assemblies and the overall height of the display device after splicing, the display device can adapt to different scenes, and the applicability and operation convenience of the display device are improved. In addition, the height of the display screen assembly can be flexibly adjusted before and after splicing, which can avoid misalignment during splicing, and the operation convenience and use reliability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0028] Figure 1 The structural schematic diagram of an embodiment of the display device provided by the present application is shown in the figure.

[0029] Figure 2 The structural schematic diagram of another view of the display device is shown in the figure. Figure 1

[0030] Figure 3 The structural schematic diagram of an embodiment of the display screen assembly provided by the present application is shown in the figure.

[0031] Figure 4 The structural schematic diagram of another view of the display screen assembly is shown in the figure. Figure 3

[0032] Figure 5 The enlarged view of an embodiment of A in the figure is shown in the figure. Figure 1

[0033] The partial structural schematic diagram of an embodiment of the display screen assembly provided by the present application is shown in the figure. Figure 6

[0034] The structural schematic diagram of an embodiment of the lifting structure provided by the present application is shown in the figure. Figure 7

[0035] The structural schematic diagram of an embodiment of the sliding block in the figure is shown in the figure. Figure 8 Figure 7 The enlarged view of an embodiment of B in the figure is shown in the figure.

[0036] Figure 9 Figure 3 The enlarged view of an embodiment of C in the figure is shown in the figure.

[0037] Figure 10 The partial structural schematic diagram of an embodiment of the display device provided by the present application is shown in the figure. Figure 4

[0038] The structural schematic diagram of an embodiment of the control box provided by the present application is shown in the figure. Figure 11

[0039] Figure 12 The structural schematic diagram of an embodiment of the control box provided by the present application is shown in the figure.

[0040] Explanation of the reference signs in the drawings:

[0041] 00, display screen assembly ​​​​​

[0042] 110, display screen body; 120, fixed frame; 121, first connecting surface; 122, second connecting surface; 130, protective frame;

[0043] 200, lifting structure; 210, base; 211, first wiring groove; 220, stand; 230, electric lifting column; 240, controller; 250, sliding block; 251, connecting end; 252, sliding end; 261, first rolling element; 262, second rolling element; 270, first cover plate; 280, containing box; 290, control panel;

[0044] 310, lifting cascade interface; 320, first connecting cable;

[0045] 410, first positioning hole; 420, first positioning column; 430, second positioning hole;

[0046] 510, magnetic attraction element; 520, magnet;

[0047] 610, lock hook; 620, lock rod;

[0048] 700, control box; 710, box body; 720, second cover plate; 730, antenna module; 740, power module; 750, control board card; 760, wired cascade interface board; 770, signal socket; 780, power socket;

[0049] 810, drag chain; 820, second connecting cable;

[0050] 910, wireless transmitting module; 920, wireless receiving module.

[0051] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0053] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0054] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0055] The conventional display device is usually provided as a single large display screen to meet the demand of super large visual surface in the scene of stage performance, conference and exhibition. However, the single large display screen cannot flexibly adjust the size of the display screen, resulting in limited applicable scene.

[0056] Most of the existing display devices form a super large visual surface by splicing multiple display screens, and adjust the splicing quantity to adapt to the demand of different scenes. However, the display screen in the existing display device can only adjust the height of the single display screen before splicing, and cannot adjust the height of the whole display device after splicing, resulting in problems such as complicated splicing process, misalignment of splicing, and still limited use, which affects the operation convenience and use reliability.

[0057] Please refer to Figures 1 to 4 In an embodiment, the display device includes multiple groups of display screen assemblies 00, and adjacent two groups of display screen assemblies 00 can be spliced and fixed. Each group of display screen assemblies 00 includes a display screen body 110, a lifting structure 200 and an electrical connection structure, and the display screen bodies 110 in adjacent two groups of display screen assemblies 00 can be spliced. The lifting structure 200 includes a lifting main body and a controller 240 electrically connected with the lifting main body, and the lifting main body is drivingly connected with the display screen to drive the display screen body 110 to lift. The electrical connection structure is arranged on the lifting main body and electrically connected with the controller 240. Wherein, the controllers 240 in adjacent two groups of display screen assemblies 00 are electrically connected through the electrical connection structure.

[0058] The number of display screen assemblies 00 in the display device can be flexibly set according to actual demand and application scene, and a single group of display screen assemblies 00 can work independently, and here, the number of display screen assemblies 00 is not limited.

[0059] The display screen body 110 is a display structure in the display screen assembly 00, and the lifting structure 200 is used for supporting the display screen body 110 and driving the display screen body 110 to lift. The display screen body 110 can be configured as an LED screen or an OLED screen to realize high-definition and high-contrast picture display effect. The side surface of one display screen body 110 can be detachably connected with the side surface of another display screen body 110 to realize splicing and fixing of at least two groups of display screen assemblies 00. Each display screen body 110 corresponds to a lifting structure 200, the lifting main body in the lifting structure 200 is connected with and supports the display screen body 110, and the controller 240 can control the lifting main body to act to drive the display screen body 110 to lift. When a plurality of groups of display screen assemblies 00 are not spliced, the controller 240 independently acts to realize independent lifting of the corresponding display screen body 110; after the plurality of groups of display screen assemblies 00 are spliced, the controllers 240 in any two adjacent display screen assemblies 00 realize signal transmission through an electric connection structure, when a user controls one of the controllers 240, the controller 240 is automatically identified as a host to receive external instructions, and the instruction signal is transmitted to the other controllers 240 connected therewith, so that the plurality of controllers 240 electrically connected through the electric connection structure synchronously control the corresponding lifting main body to act, and then realize synchronous lifting of the display screen bodies 110 in the plurality of groups of display screen assemblies 00. The number of the electric connection structure can be flexibly set according to the number of the spliced display screen assemblies 00, which is not limited herein.

[0060] The utility model discloses a technical scheme, display device includes multiple groups of display screen subassembly 00, and the display screen subassembly 00 between two adjacent groups can splice fixed, and every display screen subassembly 00 includes display screen body 110, lifting structure 200 and electric connection structure, and the display screen body 110 in two adjacent groups of display screen subassembly 00 can splice, and lifting structure 200 includes lifting main body and the controller 240 of electric connection with lifting main body, and lifting main body is driven to connect with display screen and promotes display screen body 110 to lift, and electric connection structure is located in lifting main body, and is connected with controller 240 electrically, and wherein, the controller 240 in two adjacent groups of display screen subassembly 00 is connected through electric connection structure electrically.

[0061] Please refer to Figures 5 to 7 In an embodiment, the electric connection structure includes a lifting cascade interface 310 disposed on the side surface of the lifting main body and electrically connected with the controller 240, and the lifting cascade interfaces 310 in two adjacent groups of display screen subassembly 00 can be electrically connected through a first connection cable 320, and the first connection cable 320 is plugged into the lifting cascade interface 310.

[0062] Specifically, the controller 240 is a microprocessor unit embedded in the inside of the lifting main body, and opposite sides of the lifting main body are respectively provided with a lifting level connection interface 310, each of which is fixed to the side of the lifting main body and the internal pins of which are electrically connected with the communication bus (such as CAN bus or RS485 bus) of the controller 240. The two lifting level connection interfaces 310 located in the same lifting main body are respectively electrically connected with the lifting level connection interface 310 of a display screen assembly 00 through a first connection cable 320, so as to realize the electrical connection of multiple groups of display screen assemblies 00. Among them, the first connection cable 320 and the lifting level connection interface 310 can be further connected by screwing or elastic clamping, etc., to further ensure the stability of the plug-in. Specifically, the controller 240 can be an STM32F4 series or a TI C2000 series or an NXP RT series or other microprocessors with certain data processing and operation capabilities, the lifting level connection interface 310 can be an RJ45 interface or an M12 interface or a navigation plug interface, etc., and the first connection cable 320 can be a CAT6A cable or a CAT5e and above Ethernet cable or a CAN cable, etc. For example, the specific model of the controller 240 is STM32F407VGT6, the specific model of the lifting level connection interface 310 is NOVACAS-CIB-v1.0, and the specific model of the connection cable is CAT6A SF / UTP, so as to realize the cascade communication and synchronous control. Here, no specific limitation is made.

[0063] In this way, after the multiple groups of display screen assemblies 00 are spliced, the user can realize the synchronous lifting of the display screen bodies 110 in the multiple groups of display screen assemblies 00 by only operating the controller 240 of one display screen assembly 00, greatly simplifying the operation process and improving the operation convenience; at the same time, the consistency of the height of the spliced display device is also ensured, and the visual discord problem caused by the height difference is avoided.

[0064] Further, the lifting structure 200 further comprises a control panel 290, which is arranged on the outside of the lifting main body and is electrically connected with the controller 240. The control panel 290 can send control instructions to the controller 240 to control the lifting action of the display screen body 110. Among them, the control panel 290 can include an up button, a down button, a stop button and a reset button, etc. The user can press the corresponding button according to the actual demand to control the lifting of the display screen body 110, further improving the operation convenience. After the multiple groups of display screen assemblies 00 are spliced, the user can first operate one of the control panels 290 to make the lifting main bodies in the spliced display screen assemblies 00 drive the corresponding display screen bodies 110 to reset uniformly; after the resetting is completed, the control panel 290 is operated again to make the lifting main bodies in the spliced display screen assemblies 00 drive the corresponding display screen bodies 110 to lift, so as to realize the synchronous lifting.

[0065] Please refer to Figures 5 to 7 In an embodiment, the side surface of the lifting main body is provided with a first wiring groove 211, and the lifting level connection interface 310 is in communication with the first wiring groove 211. The first wiring grooves 211 in the adjacent two groups of display screen assemblies 00 can be relatively communicated to accommodate the first connection cable 320. Specifically, the opposite side surfaces of the lifting main body are respectively provided with a first wiring groove 211. Each first wiring groove 211 corresponds to a lifting level connection interface 310. The first wiring groove 211 is used to provide a protected wiring path for the first connection cable 320. The first wiring grooves 211 in the adjacent two groups of display screen assemblies 00 can jointly form a continuous and straight linear channel to minimize the wiring path of the first connection cable 320, simplify the wiring, and enable the first connection cable 320 to smoothly transition from the lifting level connection interface 310 to the first wiring groove 211. The length of the first connection cable 320 is adapted to the length of the wiring path to avoid the first connection cable 320 being too long or too short, achieve reasonable wiring, and reduce potential safety hazards caused by cable clutter. Among them, the first wiring groove 211 can be a groove directly integrally formed on the side surface of the lifting main body, and the lifting level connection interface 310 is located on the groove wall of the groove. The first wiring groove 211 can also be a guide pipe attached to the side surface of the lifting main body to provide support and protection for the first connection cable 320, which is not limited here.

[0066] Please refer to Figure 6 and Figure 7 In an embodiment, the lifting main body includes a base 210, a stand 220, and an electric lifting column 230. The electric connection structure and the controller 240 are arranged on the base 210. The stand 220 is arranged on the base 210 and is hollow. The electric lifting column 230 is movably arranged on the stand 220 and is electrically connected with the controller 240. The electric lifting column 230 is drivingly connected with the display screen body 110 to drive the display screen to lift.

[0067] The base 210 provides stable support for the entire lifting main body. The opposite side surfaces of the base 210 are respectively provided with a lifting level connection interface 310 and a first wiring groove 211. The other side surface of the base 210 is provided with a control panel 290. The inside of the base 210 is provided with a mounting space to mount and accommodate the controller 240. The lifting main body further includes a first cover plate 270 which is detachably connected with the base 210 to cover or expose the controller 240. Two stands 220 are arranged on the base 210 at intervals. The inside of each stand 220 is provided with an electric lifting column 230. The electric lifting column 230 is telescopically arranged and the end thereof extends out of the stand 220 and is connected with the back surface of the display screen body 110 through a fixing block. The controller 240 can control the start and stop and telescopic stroke of the electric lifting column 230, thereby controlling the lifting of the display screen body 110.

[0068] Please refer to Figure 7 andFigure 8 In an embodiment, the lifting structure 200 further comprises a sliding block 250, a first rolling member 261 and a second rolling member 262. The sidewall of the stand 220 is provided with a guide groove, the sliding block 250 has a connecting end 251 connected with the display screen body 110 and a sliding end 252 slidingly arranged in the guide groove. The first rolling member 261 is arranged on the sliding end 252 and abuts against and can roll along the groove wall of the guide groove. The second rolling member 262 is arranged on the sliding end 252 and its axial direction is perpendicular to that of the first rolling member 261, and abuts against and can roll along the other groove wall of the guide groove.

[0069] The guide groove extends along the height direction of the stand 220, i.e. the lifting direction of the display screen body 110. The connecting end 251 and the sliding end 252 of the sliding block 250 are connected by bending, the sliding end 252 is in the shape of "T", and the middle part of the sliding end 252 is connected with the connecting end 251. The opposite two side faces of the sliding end 252 are provided with the first rolling member 261, and the two groups of first rolling members 261 abut against and can roll along the groove bottom face of the guide groove. The side of the sliding end 252 connected with the connecting end 251 is provided with the second rolling member 262, and the opposite two sides of the connecting position of the sliding end 252 and the connecting end 251 are provided with the second rolling member 262, and the two groups of second rolling members 262 abut against and can roll along the opposite two groove walls of the guide groove. At the same time, the arrangement of the guide rail can effectively prevent the sliding block 250 from deviating or jamming during sliding, and improve the stability and reliability of the lifting of the display screen body 110. Each group of first rolling members 261 can include one or more first rolling members 261, and / or each group of second rolling members 262 can include one or more second rolling members 262, and the first rolling members 261 and the second rolling members 262 are arranged in cross to avoid mutual interference. The first rolling members 261 and the second rolling members 262 can be configured as ball bearings or rollers, etc., which are not limited herein. Further, the groove wall and the groove bottom of the guide groove are further provided with guide rails to further guide the rolling direction of the first rolling members 261 and the second rolling members 262, ensure the smooth sliding of the sliding block 250 in the guide groove, and reduce friction and wear. The guide rails can be grooves or guide rail frames located on the groove wall and the groove bottom of the guide groove, which are not limited herein.

[0070] In this way, the first rolling member 261 and the second rolling member 262 cooperate to reduce the frictional resistance of the sliding block 250 moving along the guide groove, and the axial direction of the second rolling member 262 is perpendicular to that of the first rolling member 261, so that the first rolling member 261 and the second rolling member 262 can provide rolling support and limiting for the sliding end 252 in two perpendicular directions respectively, improve the stability and precision of lifting, and further improve the use reliability of the display device.

[0071] Referring to Figures 1 to 4 In an embodiment, the display screen assembly 00 further comprises a fixed frame 120, the display screen body 110 is arranged in the fixed frame 120, and opposite sides of the fixed frame 120 are provided with a first connecting surface 121 and a second connecting surface 122. The first connecting surface 121 can be connected and attached with the second connecting surface 122 in the adjacent display screen assembly 00.

[0072] The fixed frame 120 is used to provide support and protection for the display screen body 110. The fixed frame 120 is located at the back of the display screen body 110 and is connected with the electric lifting column 230. The fixed frame 120 and the display screen body 110 jointly form an accommodation space to accommodate the circuit structure of the display screen body 110. When multiple display screen bodies 110 are spliced, the first connecting surface 121 can be connected and attached with the second connecting surface 122 in the adjacent display screen assembly 00 to realize seamless attachment of the adjacent two display screen assemblies 00, so as to ensure that the overall picture of the display device after splicing is coherent and has no visual discontinuity.

[0073] Referring to Figure 9 and Figure 10 In an embodiment, the first connecting surface 121 is provided with a first positioning hole 410 and a first positioning column 420, and the second connecting surface 122 is provided with a second positioning hole 430 and a second positioning column. The first positioning hole 410 and the first positioning column 420 can be correspondingly inserted with the second positioning column and the second positioning hole 430 in the adjacent display screen assembly 00. Specifically, the shape and size of the first positioning hole 410 and the second positioning column are matched, and the shape and size of the first positioning column 420 and the second positioning hole 430 are also matched. When multiple display screen assemblies 00 are spliced, the first positioning column 420 of a display screen assembly 00 is inserted into the second positioning hole 430 of the adjacent display screen assembly 00, and at the same time, the second positioning column of the display screen assembly 00 is inserted into the first positioning hole 410 of the adjacent display screen assembly 00, so that the adjacent two display screen assemblies 00 can be quickly and accurately positioned and spliced, effectively avoiding the misalignment during splicing, and ensuring the accuracy and stability of splicing.

[0074] Further, the display screen assembly 00 further comprises a locking structure to lock and connect two groups of display screen assemblies 00 after positioning and splicing. Specifically, the first connecting surface 121 and the second connecting surface 122 are both provided with a lock opening in communication with the accommodating space, and the locking structure comprises a control wheel, a lock hook 610 and a lock rod 620. The control wheel is rotationally arranged in the accommodating space of one display screen assembly 00, one end of the lock hook 610 is eccentrically arranged in the control wheel and opposite to the lock buckle of the first connecting surface 121, the lock buckle can be hidden in the accommodating space, and the lock rod 620 is arranged in the accommodating space of another display screen assembly 00 and opposite to the lock opening of the second connecting surface 122. The control wheel is provided with an operation slot at the position of the shaft center, and the fixed frame 120 is provided with an operation opening opposite to the operation slot, so that the user can rotate the control wheel by inserting a tool into the operation slot through the operation opening. The operation is simple and labor-saving. The outer side of the fixed frame 120 is provided with a direction mark, which is arranged close to the operation opening to prompt the user to unlock or lock. After splicing two groups of display screen assemblies 00, rotating the control wheel can drive the lock hook 610 to rotate, so that the lock hook 610 hooks the corresponding lock rod 620, thereby realizing the locking of the two groups of display screen assemblies 00, avoiding shaking or moving, and ensuring the stability and display effect of the display device as a whole. Of course, in other embodiments, the second locking structure can also be an electromagnetic lock or a buckle type locking structure, which is not limited here.

[0075] Please refer to Figure 9 and Figure 10 In an embodiment, the display screen assembly 00 further comprises a protective frame 130, and the opposite sides of the fixed frame 120 are rotationally connected with a protective frame 130, respectively. The two protective frames 130 can cover or expose the first connecting surface 121 and the second connecting surface 122, respectively.

[0076] The protective frame 130 is rotationally connected with one end of the fixed frame 120 away from the display screen body 110, and the width of the protective frame 130 is slightly larger than the thickness of the fixed frame 120, so that the protective frame 130 can cover the corresponding first connecting surface 121 or second connecting surface 122 while protecting the edge of the display screen body 110. The protective frame 130 is provided with an avoiding hole corresponding to the first positioning column 420 or the second positioning column, so that the protective frame 130 can be fitted with the first connecting surface 121 or the second connecting surface 122 when covering the corresponding first connecting surface 121 or second connecting surface 122, thereby ensuring the protection effect.

[0077] In the splicing display screen assembly 00, the corresponding protective frame 130 can be rotated to a position where the first connecting surface 121 and the second connecting surface 122 are exposed, so as to facilitate the positioning and splicing operation; after splicing is completed, the corresponding protective frame 130 is rotated to a position where the first connecting surface 121 and the second connecting surface 122 are covered, so as to protect the edges of the first connecting surface 121, the second connecting surface 122 and the display screen body 110, prevent damage caused by collision, scratching and the like in the subsequent use process or carrying process, and improve the use reliability of the display device.

[0078] Referring to Figure 9 and Figure 10 In an embodiment, the display screen assembly 00 further comprises a magnetic attraction structure arranged between one of the protective frames 130 and the first connecting surface 121 and between the other protective frame 130 and the second connecting surface 122; when the protective frame 130 exposes the first connecting surface 121 and the second connecting surface 122, the magnetic attraction structure can position the corresponding protective frame 130 on the first connecting surface 121 and the second connecting surface 122.

[0079] Specifically, the magnetic attraction structure comprises a magnetic attraction piece 510 and a magnet 520, the first connecting surface 121 and the second connecting surface 122 are embedded with the magnetic attraction piece 510, and the corresponding protective frame 130 is provided with the magnet 520, and the positions of the magnetic attraction piece 510 and the magnet 520 correspond to each other. When the protective frame 130 is rotated to a position where the first connecting surface 121 and the second connecting surface 122 are exposed, the magnet 520 and the magnetic attraction piece 510 attract each other, thereby firmly positioning the protective frame 130 on the first connecting surface 121 and the second connecting surface 122, preventing the protective frame 130 from shaking or rotating during the carrying process or when the single display screen assembly 00 is used independently, and facilitating the operation and further ensuring the protection effect of the protective frame 130 on the first connecting surface 121, the second connecting surface 122 and the edges of the display screen body 110. Of course, in other embodiments, the positioning of the protective frame 130 between the first connecting surface 121 and the second connecting surface 122 can also be achieved by a resilient buckle or the like, which is not limited herein.

[0080] Referring to Figure 6 , Figure 11 and Figure 12 In an embodiment, the display screen assembly 00 further comprises a control box 700 arranged on the fixed frame 120, the first connecting surface 121 is provided with a wireless sending module, the second connecting surface 122 is provided with a wireless receiving module 920, and the control box 700 is electrically connected with the wireless sending module and the wireless receiving module 920; when the display screen bodies 110 of two adjacent display screen assemblies 00 are spliced, the wireless sending module is opposite to the wireless receiving module 920 in the adjacent display screen assembly 00.

[0081] The control box 700 comprises a box body 710, a second cover plate 720, a power module 740, an antenna module 730, a control board card 750, a wired cascade interface board 760, a signal jack 770 and a power jack 780 arranged in the box body 710, and the second cover plate 720 is rotationally connected with the box body 710 to cover or expose the various modules inside the box body 710. The antenna module 730 and the power module 740 are electrically connected with the control board card 750, the power module 740 is used for supplying power for the control board card 750, the antenna module 730 is used for receiving signals, the control board card 750 is used for controlling and sending data to the display screen body 110, the wired cascade interface board 760 is used for connecting other display devices to facilitate the multi-screen linkage display, the signal jack 770 is used for signal and power transmission with external equipment, ensuring that the display device can stably receive and display various information, and the power jack 780 is used for connecting other power boards to provide power support for the display device, ensuring its normal operation.

[0082] Please refer to Figure 9 and Figure 10 The first connecting surface 121 and the second connecting surface 122 of each group of display screen assemblies 100 are respectively embedded with a wireless sending module and a wireless receiving module 920, the wireless sending module is used for converting digital data into wireless signals and sending them out, the wireless receiving module 920 is used for receiving wireless signals and demodulating them into digital data, the pins of the wireless sending module and the wireless receiving module 920 are electrically connected with the control board card 750. The wireless sending module can be a Bluetooth sending module or a Wi-Fi sending module or a radio frequency sending module, and the wireless receiving module 920 is correspondingly configured as a Bluetooth receiving module or a Wi-Fi receiving module or a radio frequency receiving module, which is not limited here.

[0083] When the multiple groups of display screen assemblies 00 are completed, the control board card 750 of the first group of display screen assemblies 00 will start the detection process, first through its own wireless transmission module 910 to send a specific signal, then the wireless receiving module 920 of the subsequent display screen assembly 00 will immediately forward this signal or send a response signal through its own wireless transmission module 910 after receiving the signal. This process will be passed down level by level until the last group of display screen assemblies 00. The control board card 750 accurately calculates the total number of spliced display screen assemblies 00 according to the time, intensity, number of received response signals or back count value of signal transmission information. After obtaining the total number, the control board card 750 will automatically crop and adjust the original display picture according to the preset algorithm and display ratio requirements, to ensure that the picture displayed on each display screen body 110 can be seamlessly spliced into a complete and coherent whole, and the picture ratio is coordinated without stretching or compression deformation, thereby ensuring the display effect. Among them, the control board card 750 is a circuit board with certain data processing and operation ability, which can be a microcontroller 240 class (with MAC) or a display dedicated sending card or an AMC board card, etc. Here, no limitation is made. In this way, this wireless transmission method greatly simplifies the wiring work in the splicing process, avoids many inconveniences caused by complex cable connection, and also reduces the display problems caused by cable failure.

[0084] Further, when the pixels of the original display picture exceed the upper limit of the control board card 750, the control board card 750 of the first group of display screen assemblies 00 can be electrically connected to the control board card 750 of the subsequent group of display screen assemblies 00 through the CAT6 network cable, so that another control board card 750 and the control board card 750 of the first group of display screen assemblies 00 are processed in sections.

[0085] Further, please refer to Figure 6 and Figure 7In an embodiment, the power module 740 of the control box 700 is electrically connected to the controller 240 of the lifting structure 200 through the second connection cable 820 to supply power to the controller 240. Specifically, the electric lifting column 230 is connected to the end connected to the fixed frame 120, and the accommodation box 280 is connected to the middle part of the second connection cable 820, which is arranged in a telescopic manner and accommodated in the accommodation box 280. The second wire slot is provided on the stand column 220, and the display assembly 00 further comprises a drag chain 810 sleeved on the outer periphery of the second connection cable 820, one end of the drag chain 810 is movably accommodated in the accommodation box 280, and the other end of the drag chain 810 is arranged in the second wire slot. When the electric lifting column 230 rises relative to the stand column 220, the accommodation box 280 can be driven to rise, so that the drag chain 810 extends out of the accommodation box 280 and expands along the second wire slot. The side of the accommodation box 280 close to the stand column 220 is arranged close to the stand column 220 and is provided with a wire opening opposite to the second wire slot, and the drag chain 810 extends into the second wire slot through the wire opening. A limiting piece is arranged at the wire opening to limit and support the drag chain 810, so as to prevent the drag chain 810 from being separated from the wire opening during the extension or retraction process. The limiting piece can be a limiting frame, and the like, which is not limited herein.

[0086] When the electric lifting column 230 drives the display screen body 110 to rise, the accommodation box 280 rises synchronously, the middle part of the second connection cable 820 is stretched, at the same time, the drag chain 810 is driven by the accommodation box 280 to extend out of the accommodation box 280 and gradually expand along the second wire slot, and the end of the drag chain 810 away from the accommodation box 280 is fixed in the second wire slot, so that the second connection cable 820 stably extends along the second wire slot under the protection of the drag chain 810; when the electric lifting column 230 drives the display screen body 110 to descend, the accommodation box 280 descends synchronously, the middle part of the second connection cable 820 is retracted and drives the drag chain 810 to move, so that the drag chain 810 is gradually retracted into the accommodation box 280 along the second wire slot, which ensures that the second connection cable 820 is always in an orderly and protected state, avoids damage caused by the disordered or excessive stretching or twisting of the second connection cable 820, and avoids the influence of the second connection cable 820 on the lifting of the display assembly 00, thereby improving the use reliability of the display device.

[0087] The above description is only an exemplary embodiment of the present application, and does not limit the protection scope of the present application. Any equivalent structural transformation made by referring to the content of the present application and the drawings, or direct / indirect application in other related technical fields is included in the protection scope of the present application.

Claims

1. A display device, characterized by comprising: The display device comprises a plurality of display screen assemblies, two adjacent display screen assemblies can be spliced and fixed, each display screen assembly comprises: a display screen body, the display screen bodies in two adjacent display screen assemblies can be spliced; a lifting structure, the lifting structure comprises a lifting main body and a controller electrically connected with the lifting main body, the lifting main body is drivingly connected with the display screen to drive the display screen body to lift; and an electrical connection structure, provided on the lifting main body and electrically connected with the controller; wherein the controllers in two adjacent display screen assemblies are electrically connected through the electrical connection structure.

2. The display device of claim 1, wherein, The electrical connection structure comprises a lifting cascade interface provided on the side surface of the lifting main body and electrically connected with the controller, the lifting cascade interfaces in two adjacent display screen assemblies can be electrically connected through a first connection cable, and the first connection cable is plugged with the lifting cascade interface.

3. The display device of claim 2, wherein, A first wiring groove is provided on the side surface of the lifting main body, the lifting cascade interface communicates with the first wiring groove, and the first wiring grooves in two adjacent display screen assemblies can be relatively connected and communicated to accommodate the first connection cable.

4. The display device of claim 1, wherein The lifting main body comprises: a base, the electrical connection structure and the controller are provided on the base; a stand column, provided on the base and hollowed; and an electric lifting column, movably provided on the stand column and electrically connected with the controller, the electric lifting column is drivingly connected with the display screen body to drive the display screen to lift.

5. The display device of claim 4, wherein, The lifting structure further comprises: a sliding block, a guide groove is provided on the side wall of the stand column, the sliding block has a connecting end and a sliding end, the connecting end is connected with the display screen body, and the sliding end is slidingly provided in the guide groove; a first rolling member, provided on the sliding end, the first rolling member abuts against the groove wall of the guide groove and can roll along the groove wall of the guide groove; and a second rolling member, provided on the sliding end and having an axial direction perpendicular to that of the first rolling member, the second rolling member abuts against the other groove wall of the guide groove and can roll along the other groove wall of the guide groove.

6. The display device of claim 1, wherein The display screen assembly further comprises a fixed frame, the display screen body is provided on the fixed frame, and opposite sides of the fixed frame are provided with a first connecting surface and a second connecting surface, the first connecting surface can be connected with and abut against the second connecting surface in an adjacent display screen assembly.

7. The display device of claim 6, wherein The first connecting surface is provided with a first positioning hole and a first positioning column, the second connecting surface is provided with a second positioning hole and a second positioning column, and the first positioning hole and the first positioning column can be plugged with the second positioning column and the second positioning hole in an adjacent display screen assembly.

8. The display device of claim 6, wherein, The display screen assembly further comprises a protective frame, one of the protective frames is rotationally connected to each of the opposite sides of the fixed frame, and the two protective frames can respectively cover or expose the first connecting surface and the second connecting surface.

9. The display device of claim 8, wherein, The display screen assembly further comprises a magnetic attraction structure, provided between one of the protective frames and the first connecting surface and between the other protective frame and the second connecting surface. When the protective frame exposes the first connecting surface and the second connecting surface, the magnetic attraction structure can position the protective frame corresponding to the first connecting surface and the second connecting surface.

10. The display device of claim 6, wherein, The display screen assembly further comprises a control box arranged on the fixed frame, the first connecting surface is provided with a wireless sending module, the second connecting surface is provided with a wireless receiving module, and the control box is electrically connected with the wireless sending module and the wireless receiving module. When the display screen bodies in two adjacent groups of display screen assemblies are spliced, the wireless sending module is opposite to the wireless receiving module in the adjacent display screen assembly.

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