Double-sided wireless connection display screen and wireless communication method of video signals thereof

Abstract

The present application relates to a kind of double-sided wireless connection display screen and its video signal wireless communication method, the display screen includes box frame, multiple LED display module, wireless connection module and drive assembly, multiple LED display module is arranged in the front and back of the box frame, the drive assembly includes main power drive module and wireless power drive module, wireless connection module includes the pair of wireless communication components that can correspond to carry out video signal wireless communication;Pair of wireless communication components has both the receiving and transmitting unit of wireless communication to facilitate signal wireless transmission between different display screens, while being provided with wired network interface, wired network transmission is carried out between internal wireless communication components, wired and wireless conversion is passed through, realize wired wireless dual-function bidirectional transmission.Direct module type splicing is carried out when splicing, and installation and maintenance are fast and convenient, and overall layout is simple, more light and thin, save space and labor cost, applicable to various commercial display scenarios.

Description

Technical Field

[0001] This invention relates to the field of large display screen equipment technology, specifically to a double-sided wirelessly connected display screen and a method for wireless communication of its video signals. Background Technology

[0002] In large-scale performances or outdoor large-screen display devices, multiple displays are often spliced ​​together to form large or even ultra-large screens. Moreover, double-sided displays are frequently used outdoors, especially on municipal roads or highways, where they are the optimal choice for displaying content across two lanes. Currently, portable large or ultra-large double-sided displays have emerged; for example, rental double-sided displays are particularly popular. When rented for different locations, frequent relocation of the display equipment is necessary; therefore, double-sided displays need to be thinner and lighter.

[0003] However, precisely because double-sided displays require dual-sided operation, they inherently require an additional set of facilities or accessories compared to single-sided displays. For example, the power cord needs to provide dual-sided driving power, and the signal cables need to be configured in pairs, which obviously increases the internal space burden of the display device. On the other hand, these complex wiring and accessories also increase the time and labor costs for disassembly, assembly, and maintenance. Moreover, especially for rented double-sided display screens that need to be frequently moved, this requires frequent disassembly, assembly, and splicing, and they are prone to damage, increasing the frequency of maintenance. The splicing and signal interconnection between the various displays also consume considerable time and labor costs. Therefore, double-sided displays used for splicing not only require thinner and lighter displays, but also need to be easy to install, disassemble, and maintain. The existing power connection and signal cabling methods obviously have a significant impact on the user experience of this type of display device. Summary of the Invention

[0004] In view of this, a method for wireless communication of video signals for a double-sided wirelessly connected display screen and its video signal is provided, which features a neat overall structure, convenient installation and maintenance, and space saving.

[0005] A dual-sided wirelessly connected display screen includes a cabinet frame, multiple LED display modules, and a driving component. The multiple LED display modules are disposed on the front and back of the cabinet frame. The driving component includes a main power driving module and a wireless power driving module. The main power driving module is used to supply power to the multiple LED display modules. The cabinet frame includes a top frame, a bottom frame, a left frame, and a right frame. The dual-sided wirelessly connected display screen also includes a wireless connection module. The wireless connection module includes a first wireless communication component and a second wireless communication component capable of wireless video signal communication. The first wireless communication component and the second wireless communication component are installed on a pair of frames that can be spliced ​​together, according to their corresponding positions when the cabinet frame is spliced, for wireless transmission of video signals between the LED display modules on the spliced ​​cabinet frame.

[0006] The first wireless communication component includes a first circuit board, a first bidirectional conversion module, a second bidirectional conversion module, a first wired network interface, a second wired network interface, a first transceiver unit, and a second transceiver unit; the first transceiver unit, the first bidirectional conversion module, and the first wired network interface are sequentially connected and respectively disposed on the first circuit board; the second transceiver unit, the second bidirectional conversion module, and the second wired network interface are sequentially connected and respectively disposed on the first circuit board.

[0007] The second wireless communication component includes a second circuit board, a third bidirectional conversion module, a fourth bidirectional conversion module, a third wired network interface, a fourth wired network interface, a third transceiver unit, and a fourth transceiver unit; the third transceiver unit, the third bidirectional conversion module, and the third wired network interface are sequentially connected and respectively disposed on the second circuit board; the fourth transceiver unit, the fourth bidirectional conversion module, and the fourth wired network interface are sequentially connected and respectively disposed on the second circuit board;

[0008] The first wired network interface and the third wired network interface are connected inside the enclosure frame via a first signal relay station wired network; the second wired network interface and the fourth wired network interface are connected inside the enclosure frame via a second signal relay station wired network.

[0009] Each transceiver unit has a receiving chip and a transmitting chip to switch between receiving and transmitting at will; each receiving chip and each transmitting chip has a millimeter-wave sensor so that when two adjacent transceiver units are spliced ​​together, they can communicate wirelessly with each other and transmit signals; each bidirectional conversion module is connected to a wired network interface at one end and to the corresponding transceiver unit at the other end to perform wired-to-wireless signal conversion; the first circuit board and the second circuit board are each provided with a signal pass-through section that allows wireless communication signals to pass through or be transmitted;

[0010] The first wireless communication component and the second wireless communication component are respectively connected to a corresponding wireless power driver module to obtain power.

[0011] Specifically, multiple LED display modules are installed on both the front and back of the enclosure frame, and the multiple LED display modules on each side are combined to form a large display screen; a control panel is provided on either the front or back of the enclosure frame; the control panel has a display power driver and a signal driver; each LED display module on the front and back of the enclosure frame is respectively connected to the power driver and the signal driver; the signal driver includes a front display signal driver and a back signal driver; the front display signal driver and the back signal driver are respectively connected to a corresponding signal relay station; each signal driver is connected to one or more LED display modules through a corresponding connector to distribute the video signal transmitted by the transceiver unit to each LED display module.

[0012] Furthermore, the first signal relay station and the second signal relay station each have a first-path signal cascade relay interface socket and a second-path signal cascade relay interface socket, respectively. In the first and second wireless communication components on the same housing frame, the first wired network interface and the third wired network interface are respectively connected to two interfaces of the first-path signal cascade relay interface socket via cables, and the second wired network interface and the fourth wired network interface are respectively connected to two interfaces of the second-path signal cascade relay interface socket via cables. Each signal cascade relay interface socket is also connected to a corresponding signal driver unit to transmit the required video signal data.

[0013] Furthermore, the signal transmission section includes a first group of signal transmission sections and a second group of signal transmission sections; the first group of signal transmission sections is disposed on the first circuit board or a part of the first circuit board, and the second group of signal transmission sections is disposed on the second circuit board or a part of the second circuit board. When each signal transmission section is disposed on a corresponding circuit board, each signal transmission section is a through hole penetrating the corresponding circuit board and is located close to the corresponding transceiver unit; the two groups of signal transmission sections are located correspondingly or symmetrically on the first circuit board and the second circuit board.

[0014] Preferably, the first circuit board and the second circuit board are detachably mounted on corresponding mounting frames in the housing frame. Each mounting frame has a mounting slot extending through the thickness of the frame. The first circuit board and the second circuit board are each mounted on a mounting piece. The mounting piece has a receiving slot so that the entire first circuit board and the second circuit board are embedded in the receiving slot. The first circuit board, the second circuit board, and each of the wired network interfaces are mounted inwards. Each mounting slot has mounting posts at both ends. When the two housing frames are spliced, the two mounting pieces with corresponding circuit boards are fastened to the corresponding mounting posts by fasteners to be mounted in the mounting slot. When the two housing frames are spliced, the distance between the transceiver units in the two adjacent wireless communication components is within 20 mm. The mounting piece is embedded in the mounting slot so that the outer surface of the mounting piece is basically flush with the outer surface of the corresponding mounting frame. The wireless power drive module is mounted on the corresponding circuit board.

[0015] Preferably, the first wireless communication component and the second wireless communication component transmit video signals bidirectionally, with a transmission bandwidth of 1G or more. When multiple cabinet frames are spliced ​​together, they share a network communication bandwidth of 1G or more. When multiple cabinet frames are spliced ​​together, multiple transceiver units are cascaded in sequence. The transceiver units at each level and the cables connected to each wired network interface carry video signal data of the current level and all lower-level LED display modules.

[0016] Furthermore, the two opposite frames of the housing frame used for splicing are respectively provided with male connectors, female connectors, and knob plug-in electrical structures; the male and female connectors are configured to connect to each other under the push of the knob plug-in electrical structure, so that when two adjacent double-sided wireless connection displays are spliced, they are electrically connected through the male and female connectors on the corresponding frames; the knob plug-in electrical structure includes a fixed plate, a sliding plate, a rotating lever, a rotating base, and a knob connected to the rotating base via a rotating shaft; the fixed plate has an inner surface and an outer surface, and the knob... The swivel base is rotatably connected to the fixed plate and extends through the inner and outer surfaces of the fixed plate. The inner surface of the fixed plate is provided with a groove, and the slide plate is slidably connected to the groove. One end of the rotating lever is movably connected to the slide plate, and the other end is movably connected to one end of the swivel base extending into the inner surface. One end of the slide plate is connected to the male connector. By rotating the knob, the swivel base drives the rotating lever to rotate, forcing the slide plate to slide along the groove toward the female connector, thereby driving the male connector to move toward the female connector and engage with it.

[0017] Furthermore, the knob's electrical connection structure also includes a stop-locking elastic plunger glass ball. The slide plate has a glass ball mounting groove on its side facing the fixed plate. The plunger portion of the stop-locking elastic plunger glass ball is installed in the glass ball mounting groove, and the glass ball portion protrudes from the end face of the glass ball mounting groove. The fixed plate has a first positioning hole and a second positioning hole located above the first positioning hole. In the initial state, the stop-locking elastic plunger glass ball is engaged with the first positioning hole. When the slide plate moves the male connector towards the female connector to be inserted with the female connector, the stop-locking elastic plunger glass ball synchronously follows the slide plate and engages with the second positioning hole. The distance between the first and second positioning holes is equal to the distance between the male and female connectors. The knob has a first connection hole, and the side of the rotating seat facing the knob corresponds to the first connection hole. The device includes a second connecting hole, through which the rotating shaft passes. One end of the rotating paddle has a third connecting hole, and the other end has a fourth connecting hole. A first connecting post, connected to the third connecting hole, is located on the side of the rotating seat facing the rotating paddle. A second connecting post, connected to the fourth connecting hole, is located on the side of the sliding plate facing the rotating paddle. The sliding plate also has a fifth connecting hole, through which it connects to the male connector. The length of the sliding groove is aligned with the direction in which the male connector moves towards the female connector. The inner wall of the female connector's interface has a guide protrusion, and the outer wall of the male connector's interface has a guide groove corresponding to the guide protrusion. When the male connector moves towards the female connector, the guide protrusion and guide groove automatically engage to achieve guiding and positioning.

[0018] Furthermore, the top frame of the enclosure is spliced ​​with the bottom frame of a hanging beam; the hanging beam is a hollow frame structure, and the interior of the hanging beam is equipped with a main power connection structure, a wireless power supply, a third wireless communication component, and a main signal module; the third wireless communication component has a structure and function that are basically the same as the first or second wireless communication component, and the third wireless communication component has a pair of transceiver units, a pair of bidirectional conversion modules, and a pair of wired network interfaces; the main power connection structure includes at least one female connector or at least one male connector, and the female connector is connected to an external power supply via a main power line; the main signal module has two signal outputs, which are respectively connected to the two transceiver units of the third wireless communication component via cables; the wireless power supply is connected to the third wireless communication component to provide power; the two transceiver units of the third wireless communication component are respectively wirelessly connected to the two transceiver units of the first wireless communication component spliced ​​to the enclosure frame of the hanging beam; the hanging beam has hooks and / or hangers for external installation.

[0019] On the other hand, this application also provides a video signal wireless communication method for a dual-sided wirelessly connected display screen, which is applicable to the dual-sided wirelessly connected display screen as described above. The method includes the following steps:

[0020] S10, access the main video source signal, which is divided into two main signals corresponding to the front display data and the back display data respectively; connect the two main signals of the main video source signal to a third wireless communication component via two cables. The third wireless communication component has a structure and function that are basically the same as the first or second wireless communication component. The third wireless communication component has a pair of transceiver units, a pair of bidirectional conversion modules, and a pair of wired network interfaces. The main video source signal is connected to the pair of transceiver units via the wired network interface and bidirectional conversion module of the third wireless communication component via the two cables respectively.

[0021] S20, mechanically splice the frame of the housing where the first wireless communication component is installed with the frame where the third wireless communication component is installed; wirelessly connect the first wireless communication component and the third wireless communication component at a distance that can be sensed by millimeter waves, and wirelessly communicate one-to-one with the first and second transceiver units in the first wireless communication component; send the wireless communication signal carrying the main signal of the video source to the first and second transceiver units.

[0022] S30, the first wireless communication component converts the received wireless communication signal into a wired network signal; multiple transceiver units are cascaded sequentially when multiple cabinet frames are spliced ​​together, and the transceiver units at each level and the cables connected to each network interface transmit video signal data of the current level and all lower-level LED display modules; synchronously, each wired network interface in the first wireless communication component is wired to a signal relay station for hierarchical signal transmission, which means that the signal of the current level is wired to a front display receiving card and a rear display receiving card through the corresponding signal relay station; the front display receiving card and the rear display receiving card select the received signal as the video signal that should be displayed by each LED display module at the current level and transmit it to each LED display module via wired transmission;

[0023] S40, each signal relay station that performs hierarchical signal transmission simultaneously transmits all lower-level signals to the second wireless communication component in the same enclosure frame via wired transmission. The second wireless communication component converts the received wired network signals into wireless communication signals and wirelessly transmits them to the next level wireless communication component.

[0024] When multiple cabinet frames are spliced ​​together, the two wireless communication components on each cabinet frame repeat the above steps S30 and S40 respectively to complete the wireless communication of video signals of all LED display modules on each cabinet frame; wherein, each transceiver unit can arbitrarily switch to receiver or transmitter based on control commands, or arbitrarily switch between uplink transmission and downlink transmission based on control commands; during uplink transmission, it can feed back the information of each LED display module to a main display controller.

[0025] In the aforementioned double-sided wirelessly connected display screen, at least one pair of wireless communication components are provided on the frame. When different double-sided display screens, i.e., cabinet frames, are spliced ​​together, as long as the paired wireless communication components are aligned, video signals can be wirelessly transmitted through millimeter-wave signal transmission medium, and the signal transmission is stable and reliable. When splicing different display screens or cabinet frames, the video signal uses wireless communication, replacing the traditional wired connection, thereby eliminating signal lines and making the internal space of the cabinet cleaner. Moreover, no wiring or connection is required during splicing, achieving modular connection. Two or more double-sided display screens can be modularly spliced, eliminating concerns about misconnection or misinsertion, and providing speed and efficiency. The overall layout is simple, the overall thickness is lighter, and it greatly saves space and labor costs, showing broad application prospects, especially suitable for rental scenarios. Attached Figure Description

[0026] Figure 1 This is a three-dimensional exploded view of the dual-sided wireless connection display screen provided in an embodiment of the present invention, wherein the display screen is spliced ​​with the hanging beam.

[0027] Figure 2 for Figure 1 A three-dimensional structural diagram of the cabinet frame in the double-sided wireless connection display screen.

[0028] Figure 3 for Figure 1 A schematic diagram of the planar arrangement of the wireless communication components and their signal connections in the two cabinet frames when the double-sided wireless connection display screens are spliced ​​in pairs.

[0029] Figure 4 This is a three-dimensional structural diagram of a wireless communication component in a dual-sided wireless connection display screen provided in an embodiment of the present invention.

[0030] Figure 5 for Figure 1 A magnified schematic diagram of part B in the middle section.

[0031] Figure 6 This is a three-dimensional structural diagram of the cabinet frame and hanging beam splicing of the double-sided wireless connection display screen provided in an embodiment of the present invention.

[0032] Figure 7 forFigure 6 A magnified schematic diagram of part A in the middle.

[0033] Figure 8 This is a three-dimensional structural diagram of the female connector in the double-sided wireless connection display screen according to an embodiment of the present invention.

[0034] Figure 9 This is a three-dimensional structural diagram of the male connector in the double-sided wireless connection display screen according to an embodiment of the present invention.

[0035] Figure 10 This is a schematic diagram of the knob plug-in electrical structure in the initial state of the dual-sided wireless connection display screen according to an embodiment of the present invention.

[0036] Figure 11 This is a schematic diagram of the knob plug-in electrical structure in the double-sided wireless connection display screen of this invention in the plugged-in state.

[0037] Figure 12 This is an exploded view of the knob plug-in electrical structure in the dual-sided wireless connection display screen of this invention.

[0038] Figure 13 This is an exploded view of the knob plug-in electrical structure in the dual-sided wireless connection display screen of this invention from another direction.

[0039] In the diagram: 1. Male connector; 2. Female connector; 3. Mounting plate; 4. Slide plate; 5. Rotary lever; 6. Rotary seat; 7. Shaft; 8. Knob; 9. Slide groove; 10. Stopping elastic plunger glass ball; 100. Housing frame; 101. Top frame; 102. Bottom frame; 103. Left frame; 104. Right frame; 11. Glass ball mounting slot; 110. Control panel; 12. Plunger section; 121. Rear signal drive section; 122. Front display signal drive section; 126. Connector; 13. Glass ball section; 131. Front display receiver card; 132. Rear display receiver card; 14. 141. First positioning hole; 15. Power drive component; 16. Second positioning hole; 17. First connecting hole; 18. Second connecting hole; 19. Third connecting hole; 20. First connecting post; 21. Second connecting post; 22. Fifth connecting hole; 23. Guide protrusion; 24. Guide groove; 28. LED display module; 29. ​​Upper and lower alignment lock assembly; 30. Lock base; 31. Lock component; 32. Mounting base; 33. Lock button; 34. Lock body; 35. Lock rod; 36. Lock head; 39. Auxiliary alignment magnetic component; 40. First wireless communication component; 401. First circuit board; 4 1. First transceiver unit; 42. Second transceiver unit; 411. First receiving chip; 412. First transmitting chip; 421. Second receiving chip; 422. Second transmitting chip; 451. First signal cascade relay interface socket; 450. First signal relay station; 462. Second signal cascade relay interface socket; 460. Second signal relay station; 46. First bidirectional conversion module; 47. Second bidirectional conversion module; 48. First wired network interface; 49. Second wired network interface; 50. Second wireless communication component; 502. Second circuit board; 55. Cable; 56. Third bidirectional... 57. Conversion Module; 58. Fourth Bidirectional Conversion Module; 59. Third Wired Network Interface; 505. Fourth Wired Network Interface; 506. Opening; 507. Power Interface; 518. Mounting Long Slot; 519. Mounting Hole Post; 510. Mounting Plate; 511. Through Hole; 512. Accommodation Slot; 53. Third Transceiver Unit; 54. Fourth Transceiver Unit; 85. Hanging Beam; 86. Hook; 87. Third Wireless Communication Component; 88. Main Signal Module; 89. Main Power Connection Structure; 801. Main Power Socket; 812. Main Power Cord; 83. Wireless Power Supply; 84. Hanger; 85. Base Frame. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1 to 3 This illustration shows a dual-sided wirelessly connected display screen provided by an embodiment of the present invention, including a cabinet frame 100, multiple LED display modules 28, and a driving component. The multiple LED display modules 28 are respectively disposed on the front and back of the cabinet frame 100. The driving component includes a main power driving module and a wireless power driving module. The main power driving module is used to supply power to the multiple LED display modules. The cabinet frame 100 includes a top frame 101, a bottom frame 102, a left frame 103, and a right frame 104. The dual-sided wirelessly connected display screen also includes a wireless connection module. The wireless connection module includes a first wireless communication component 40 and a second wireless communication component 50 capable of corresponding wireless communication of video signals. The first wireless communication component 40 and the second wireless communication component 50 are installed on a pair of frames that can be spliced ​​according to the corresponding positions when the cabinet frame 100 is spliced, for wireless transmission of video signals between the LED display modules on the spliced ​​cabinet frame; the illustration shows them installed on the top frame 101 and the bottom frame 102.

[0042] like Figure 2 , 3As shown in Figure 4, the first wireless communication component 40 includes a first circuit board 401, a first transceiver unit 41 and a second transceiver unit 42, a first bidirectional conversion module 46, a second bidirectional conversion module 47, a first wired network interface 48, and a second wired network interface 49. Each transceiver unit includes a receiving chip and a transmitting chip, which can switch arbitrarily between receiving and transmitting; each receiving chip and each transmitting chip has a millimeter-wave sensing device. For example, the first transceiver unit 41 includes a first receiving chip 411 and a first transmitting chip 412, which are mounted side by side on the first circuit board 401; the second transceiver unit 42 includes a second receiving chip 421 and a second transmitting chip 422, which are mounted side by side on the first circuit board 401. The receiving chip and the transmitting chip can automatically respond to signal receiving or transmitting functions. Preferably, the first wired network interface 48 and the second wired network interface 49 are respectively RJ-45 interfaces, and each RJ-45 interface is connected to the corresponding first bidirectional conversion module 46 and second bidirectional conversion module 47 through a line-dependent interface (MDI). Preferably, each bidirectional conversion module has a bidirectional conversion chip, such as a PHY (Physical Layer) chip, for bidirectional data conversion, encoding / decoding, modulation / demodulation, link rate negotiation (e.g., 1Gbps gigabit speed), error detection, and other functions. The MDI and PHY chips convert digital signals into analog electrical signals suitable for network cable transmission (transmitting direction), or convert analog electrical signals transmitted via the network cable into digital signals that the PHY chip can process (receiving direction), and then transmit them to the corresponding receiving and transmitting chips. The PHY chip and the receiving / transmitting chips preferably use a parallel serial port connection for high-speed signal transmission. The receiving and transmitting chips in each transceiver unit convert the wired digital signals transmitted from the corresponding bidirectional conversion module into millimeter-wave frequency band (e.g., 60GHz) wireless signals for transmission; or receive millimeter-wave wireless signals, convert them into electrical signals, and transmit them to the first bidirectional conversion module 46 and the second bidirectional conversion module 47 through an interface.

[0043] The structure, function, and signal transmission architecture of the second wireless communication component 50 are basically the same as those of the first wireless communication component 40. Specifically, as shown in the figure... Figure 3As shown, the second wireless communication component 50 includes a second circuit board 502, a third bidirectional conversion module 56, a fourth bidirectional conversion module 57, a third wired network interface 58, a fourth wired network interface 59, a third transceiver unit 53, and a fourth transceiver unit 54. Each transceiver unit includes a receiving chip and a transmitting chip, which can switch arbitrarily between receiving and transmitting; each receiving chip and each transmitting chip has a millimeter-wave sensing device. The transceiver units, bidirectional conversion modules, and the third wired network interface 58 and fourth wired network interface 59 are basically the same in structure, function, and signal transmission architecture as the first transceiver unit 41, the second transceiver unit 42, the first bidirectional conversion module 46, the second bidirectional conversion module 47, the first wired network interface 48, and the second wired network interface 49, and will not be described in detail here.

[0044] The receiving and transmitting chips are respectively mounted on corresponding circuit boards. For example, the first circuit board 401 has two receiving chips 411 and 421 and two transmitting chips 412 and 422, which are connected in pairs to their corresponding interfaces. Each receiving chip and each transmitting chip has a millimeter-wave sensor to enable two correspondingly close transceiver units to communicate wirelessly and transmit signals when two adjacent housing frames 100 are spliced ​​together. Each bidirectional conversion module is connected to a wired network interface at one end and to the corresponding transceiver unit at the other end to perform wired-to-wireless signal conversion. The first circuit board 401 and the second circuit board 502 are each provided with a signal transmission section that allows wireless communication signals to pass through or be transmitted.

[0045] Inside the enclosure frame 100, the first wired network interface 48 and the third wired network interface 58 are connected via a first signal relay station 450; the second wired network interface 49 and the fourth wired network interface 59 are connected via a second signal relay station 460 inside the enclosure frame 100.

[0046] like Figure 3 As shown, when one of the box frames 100 is spliced ​​with another box frame 100, taking the splicing of the top edge 101 and the bottom edge 102 as an example, the first transceiver unit 41 and the third transceiver unit 53 can be wirelessly connected, and the second transceiver unit 42 and the fourth transceiver unit 54 can be wirelessly connected when one of the box frames 100 is spliced ​​with another box frame 100.

[0047] When multiple cabinet frames 100 are spliced ​​together, following the alternating relay method of wired network connection and wireless communication connection described above, multiple cabinet frames 100 can be directly connected when spliced. In fact, the product of this application has top and bottom locks and left and right locks, which can facilitate quick splicing without the need to connect network cables, saving time and improving disassembly and maintenance efficiency. It can transmit video signals at high speed, while avoiding the complexity and inconvenience of wired network cables when splicing multiple cabinet frames 100, saving space, and making the entire display device thinner and lighter.

[0048] The first wireless communication component 40 and the second wireless communication component 50 are respectively connected to a corresponding wireless power driver module; the wireless power driver module is used to supply power to the corresponding wireless communication component.

[0049] Specifically, multiple LED display modules 28 are installed on both the front and back of the housing frame 100, and the multiple LED display modules 28 on each side are combined to form a large display screen. A control panel 110 is provided on either the front or back of the housing frame 100; the control panel 110 has a display power driver 141 and a signal driver; each LED display module 28 on the front and back of the housing frame 100 is respectively connected to the display power driver 141 and the signal driver. Preferably, each power driver 141 and signal driver, as well as cables, main circuit boards, and connectors, are installed on this side and are essentially integrated into the control panel on this side. Since the main control signal and power driver are all on one side, installation, debugging, disassembly, and maintenance are extremely convenient. Figure 2 As shown, there are two display power drivers 141, which are respectively connected to and control multiple LED display modules on the front and multiple LED display modules on the back. Each of the display power drivers 141 is connected to the main power driver module. The signal driving unit includes a front display signal driving unit 122 and a rear signal driving unit 121; Figure 2 The front display signal driving unit 122 shown includes a front display receiving card 131, and the rear signal driving unit 121 includes a rear display receiving card 132. The front display signal driving unit 122 and the rear signal driving unit 121 are respectively connected to a corresponding signal relay station; each signal driving unit is connected to one or more LED display modules 28 through a corresponding connector 126 to distribute the video signal transmitted by the transceiver unit to each LED display module 28.

[0050] Specifically, the first signal relay station 450 and the second signal relay station 460 are mounted on the control panel 110 of the enclosure frame 100. More specifically, the first wired network interface 48 and the third wired network interface 58 are connected via a wired network through a first signal relay station 450 inside the enclosure frame 100; the second wired network interface 49 and the fourth wired network interface 59 are connected via a wired network through a second signal relay station 460 inside the enclosure frame; the first signal relay station and the second signal relay station 460 are respectively equipped with a first signal cascade relay interface 451 and a second signal cascade relay interface 462; the first wireless communication component 40 and... In the second wireless communication component 50, the first wired network interface 48 and the third wired network interface 58 are respectively connected to two interfaces of the first signal cascade relay interface 451 via cables 55. The second wired network interface 49 and the fourth wired network interface 59 are respectively connected to two interfaces of the second signal cascade relay interface 462 via cables 55. Each signal cascade relay interface 451 is also connected to a corresponding signal driver to transmit the required video signal data, as shown in the diagram connecting to the front display receiver card 131 and the rear display receiver card 132. The first signal cascade relay interface 451 and the second signal cascade relay interface 462, as well as the signal driver and the display power driver, are integrated on the control circuit board of the control panel. The connection lines and signal connection connectors 126 are also integrated into the control circuit board.

[0051] Specifically, the signal transmission section includes a first group of signal transmission sections and a second group of signal transmission sections; the transmission sections are not shown in the drawings. When a thin plastic material is used, millimeter-wave radar can directly penetrate and transmit. Of course, to improve transmission speed and efficiency, it is preferable to set each signal transmission section as a through hole. More specifically, the first group of signal transmission sections is located on the first circuit board 401 or a part of the first circuit board 401, and the second group of signal transmission sections is located on the second circuit board 502 or a part of the second circuit board 502. When the signal transmission section is located on the second circuit board 502, each of the signal transmission sections is a through hole penetrating the circuit board and is located close to the corresponding transceiver unit; the two groups of signal transmission sections are located correspondingly or symmetrically on the first circuit board 401 and the second circuit board 502.

[0052] Specifically, the first circuit board 401 and the second circuit board 502 are detachably mounted on the corresponding mounting frames of the housing frame 100. Each mounting frame has a mounting slot extending through the thickness of the frame. The first circuit board 401 and the second circuit board 502 are each mounted on a mounting plate. The first circuit board 401, the second circuit board 502, and each of the wired network interfaces are mounted facing inwards. The mounting structures of the first circuit board 401 and the second circuit board 502 are basically the same. Taking the first circuit board 401 as an example, the example shows it being mounted on the top frame 101. Figure 4 and 5 As shown, a mounting slot 510 is provided on the top frame 101, and mounting posts 511 are provided at both ends of the mounting slot 510. When the two housing frames 100 are spliced, the two mounting pieces 513, each with a corresponding circuit board, are fastened to the corresponding mounting posts 511 by fasteners to be installed in the mounting slot 510. When the two housing frames are spliced, the distance between the transceiver units of the two adjacent wireless communication components is within 20 mm. The first wired network interface 48 and the second wired network interface 49 face the interior of the housing frame 100, and the two adjacent wireless communication components are installed back-to-back. Fasteners pass through the through holes 515 of the mounting pieces 513 and the holes of the mounting posts 511 to install the entire first wireless communication component 40 onto the top frame 101. The mounting pieces 513 are embedded in the mounting slot 510, making the outer surface of the mounting pieces 513 basically flush with the outer surface of the corresponding mounting frame. Additionally, the mounting plate 513 has a receiving groove 516 so that the entire first circuit board 401 or the second circuit board 502 is embedded in the receiving groove 516, thereby bringing the transceiver units of two relatively adjacent wireless communication components closer together. The first circuit board 401 and the second circuit board 502 each have openings, for example... Figure 4 and 5 The first circuit board 401 shown has two openings 505, while the mounting plate 513 has blind holes (not shown) or through holes, allowing the first circuit board 401 to be directly mounted onto the mounting plate 513. Since the first circuit board 401 is mounted facing inwards towards the housing frame 100, i.e., the receiving groove 516 has its opening facing inwards, the circuit board can be disassembled or installed from the inside when it needs to be removed. Conversely, without disassembling the housing frame 100, the mounting plate and its circuit board can be removed together by loosening the fasteners, eliminating the need for internal disassembly. Therefore, the above-described installation method for the wireless communication component enables bidirectional disassembly and installation.

[0053] The wireless power driver module is mounted on a corresponding circuit board, for example... Figure 4The first circuit board 401 shown is provided with a power interface 508. The wireless power driver module includes this power interface and draws power from the power supply on the control panel via a power cable. The wireless power driver module supplies power to the first circuit board 401, the second circuit board 502, and all the devices on them.

[0054] Specifically, the first wireless communication component 40 and the second wireless communication component 50 transmit video signals bidirectionally, with a transmission bandwidth of 1G or more. When multiple cabinet frames 100 are spliced ​​together, they share a network communication bandwidth of 1G or more. When multiple cabinet frames 100 are spliced ​​together, multiple transceiver units are cascaded in sequence. The transceiver units at each level and the cables connected to each wired network interface transmit video signal data of the current level and all lower-level LED display modules 28.

[0055] In some specific embodiments, please refer to Figures 6 to 13 The diagram illustrates the knob-type electrical connection structure and its associated components mounted on the frame of the housing frame 100. Specifically, the two opposite frames of the housing frame 100 used for splicing are respectively provided with a male connector 1, a female connector 2, and a knob-type electrical connection structure. The male connector 1 and female connector 2 are configured to connect to each other under the push of the knob-type electrical connection structure, so that when two adjacent double-sided wireless connection displays are spliced, they are electrically connected through the male connector 1 and female connector 2 on the corresponding frames. The knob-type electrical connection structure includes a fixing plate 3, a sliding plate 4, a rotating lever 5, a rotating base 6, and a knob 8 connected to the rotating base 6 via a rotating shaft 7. The fixing plate 3 has an inner surface and an outer surface, and the rotating base 6 can... The slide plate 4 is rotatably connected to the fixed plate 3 and extends through the inner and outer surfaces of the fixed plate 3. The inner surface of the fixed plate 3 is provided with a groove 9. The slide plate 4 is slidably connected to the groove 9. One end of the rotating paddle 5 is movably connected to the slide plate 4, and the other end is movably connected to one end of the rotating seat 6 that extends into the inner surface. One end of the slide plate 4 is connected to the male connector 1. By rotating the knob 8, the rotating seat 6 drives the rotating paddle 5 to rotate, which forces the slide plate 4 to slide along the groove 9 toward the female connector 2, thereby driving the male connector 1 to move toward the female connector 2 and insert into the female connector 2.

[0056] Furthermore, the knob plug-in electrical structure also includes a stop elastic plunger glass ball 10. The slide plate 4 has a glass ball mounting groove 11 on the side facing the fixing plate 3. The plunger part 12 of the stop elastic plunger glass ball 10 is installed in the glass ball mounting groove 11, and the glass ball part 13 of the stop elastic plunger glass ball 10 protrudes from the end face of the glass ball mounting groove 11. The fixing plate 3 has a first positioning hole 14 and a second positioning hole 15 located above the first positioning hole 14. In the initial state, the stop elastic plunger glass ball 10 is engaged with the first positioning hole 14. When the slide plate 4 drives the male connector 1 to move towards the female connector 2 and is inserted into the female connector 2, the stop elastic plunger glass ball 10 moves synchronously with the slide plate 4 and engages with the second positioning hole 15. The distance between the first positioning hole 14 and the second positioning hole 15 is equal to the distance between the male connector 1 and the female connector 2.

[0057] Specifically, the knob 8 is provided with a first connecting hole 16, the rotating base 6 is provided with a second connecting hole 17 on the side facing the knob 8 corresponding to the first connecting hole 16, the rotating shaft 7 passes through the first connecting hole 16 and the second connecting hole 17, one end of the rotating paddle 5 is provided with a third connecting hole 18, and the other end is provided with a fourth connecting hole 19, the rotating base 6 is provided with a first connecting post 20 connected to the third connecting hole 18 on the side facing the rotating paddle 5, the sliding plate 4 is provided with a second connecting post 21 connected to the fourth connecting hole 19 on the side facing the rotating paddle 5, and the sliding plate 4 is also provided with a fifth connecting hole 22, the sliding plate 4 is connected to the male connector 1 through the fifth connecting hole 22. The length direction of the slide groove 9 is consistent with the direction in which the male connector 1 moves towards the female connector 2. The inner wall of the interface of the female connector 2 is provided with a guide protrusion 23, and the outer wall of the interface of the male connector 1 is provided with a guide groove 24 corresponding to the guide protrusion 23. When the male connector 1 moves towards the female connector 2, the guide protrusion 23 and the guide groove 24 automatically engage to achieve guiding and positioning. Simultaneously, the corresponding arrangement of the guide protrusion 23 and the guide groove 24 also serves as a foolproof mechanism, preventing the male connector 1 from being inserted into the female connector 2 in the wrong direction to ensure correct connection.

[0058] In some specific embodiments, when the slide plate 4 drives the stop elastic plunger glass ball 10 to move from the first positioning hole 14 to the second positioning hole 15, the glass ball part 13 is pressed against the edge of the first positioning hole 14. Under the action of elastic force, the glass ball part 13 retracts towards the plunger part 12, and remains in a retracted state due to the continuous pressure of the slide plate 4 during the movement until the glass ball part 13 enters the second positioning hole 15. After entering the second positioning hole 15, the glass ball part 13 resets under the action of elastic force and is completely embedded in the second positioning hole 15. At this time, the friction generated by the close contact between the glass ball part 13 and the hole wall can effectively prevent the slide plate 4 from continuing to slide to a certain extent. When the slide plate 4 drives the stop elastic plunger glass ball 10 to move from the second positioning hole 15 to the first positioning hole 14, the working principle of the stop elastic plunger glass ball 10 is the same, and will not be described again. Understandably, the stop elastic plunger glass ball 10 switches between the first positioning hole 14 and the second positioning hole 15. The distance between the first positioning hole 14 and the second positioning hole 15 is the insertion stroke of the male connector 1. When the stop elastic plunger glass ball 10 is inserted into the positioning hole, it can prevent the male connector 1 from moving closer to the female connector 2 to avoid overpressure, and it can also prevent the male connector 1 from moving away from the female connector 2 to avoid accidental contact or pulling, which may lead to loosening, poor contact, or connection failure, thereby achieving bidirectional stop.

[0059] Furthermore, the top frame 101 of the housing frame 100 is spliced ​​with the bottom frame 802 of a hanging beam 80; the hanging beam 80 is a hollow frame structure, and the hanging beam 80 is equipped with a main power connection structure 87, a wireless power supply 88, a third wireless communication component 85, and a main signal module 86. The main power connection structure 87 includes a power socket 871 and a main power cord 872; the main power cord 872 electrically connects the power socket 871 to the female connector 2. The female connector 2 is installed on the inner side wall of the hanging beam 80, and the fixing plate 3 is installed on the inner side wall of the housing frame 100, for example, on the inner surface of the top frame 101. The bottom of the lifting beam 80 is provided with a first mounting through hole, and the top of the box frame 100 is provided with a second mounting through hole. The first mounting through hole and the second mounting through hole correspond to and communicate with each other. The first mounting through hole is used to expose the female connector 2, and the second mounting through hole is used to expose the male connector 1, so that the male connector 1 can enter the first mounting through hole from the second mounting through hole and be inserted into the female connector 2.

[0060] The third wireless communication component 85 has a structure and function basically the same as the first wireless communication component 40 or the second wireless communication component 50. The third wireless communication component 85 has a pair of transceiver units (not shown in the figure), a pair of bidirectional conversion modules (not shown in the figure), and a pair of wired network interfaces (not shown in the figure). The main power connection structure 87 also includes at least one of the female connectors 2 or at least one of the male connectors 1, which are connected to an external power supply through the main power cable 872 and the power socket 871. The main signal module 86 has two signal outputs, which are respectively connected to the two transceiver units of the third wireless communication component 85 through cables. Specifically, the two signal outputs are respectively connected to a pair of wired network interfaces on the third wireless communication component 85 through network cables, and then the two wired network interfaces transmit data with the two transceiver units of the third wireless communication component 85. The wireless power supply 88 is connected to the third wireless communication component 85 for power supply; the two transceiver units of the third wireless communication component 85 are respectively wirelessly connected to the two transceiver units of the first wireless communication component 40 spliced ​​onto the box frame 100 of the hanging beam 80. The hanging beam 80 has hooks 83 and / or hangers 89 for external installation.

[0061] Specifically, such as Figure 2 and 6 As shown, the dual-sided wireless connection display screen also includes an upper and lower alignment locking assembly 29, a left and right alignment locking assembly, and an auxiliary alignment magnetic component 39. The upper and lower alignment locking assembly 29 and the left and right alignment locking assembly are used to align and lock two adjacent housing frames 100 to ensure accurate alignment of the male connector 1 and the female connector 2. The auxiliary alignment magnetic component 39 includes a magnet and a magnetic attractant, which are respectively installed on the opposite upper and lower or left and right edges of the housing frame 100 to magnetically attract the other housing frame 100 for alignment assistance. In some other specific embodiments, the upper and lower alignment locking assembly 29 is also used to align and lock the housing frame 100 and the hanging beam 80, with the magnet and magnetic attractant respectively installed on the top of the housing frame 100 and the bottom of the hanging beam 80.

[0062] like Figure 6As shown, the upper and lower alignment lock assembly 29 includes a lock base 30 and a lock member 31. The lock base 30 includes a mounting seat 32 with external threads, a lock button 33 with internal threads, and a lock body 34 with a square lock hole. The mounting seat 32 is fixedly installed on the lifting beam 80. The mounting seat 32 is threadedly connected to the lock button 33. The lock button 33 has a receiving groove, and the lock body 34 is installed in the receiving groove. The lock member 31 includes a lock rod 35 and a lock head 36 located at the front end of the lock rod 35. When the lock rod 35 is pushed upward, the lock head 36 passes through the square lock hole of the lock body 34 and rotates the lock button 33. The lock body 34 rotates accordingly and engages with the lock head 36, thereby locking the lock base 30 and the lock member 31. The rear end of the lock rod 35 is threaded and is locked to the box frame 100 by a nut.

[0063] Therefore, it can be seen that the double-sided display screen in this embodiment uses a wireless communication component for signal transmission. When assembling the display screens, there is no need to organize and connect the wiring. The cabinet frame is directly assembled, the wireless communication component is aligned, and the assembly is completed. This eliminates the shortcomings of existing display assembly methods where signal lines need to be organized and connected separately. Furthermore, by using the aforementioned knob plug-in electrical structure, the power lines connecting the double-sided display screens are replaced with knob connections. This makes the entire double-sided display screen a module. The main power line and main signal line are connected through the module. Two or more double-sided display screens can be modularly spliced. There is no need to worry about misconnection or misinsertion. It is fast and efficient, and the overall layout is simple, which greatly saves space and labor costs.

[0064] Another embodiment of the present invention provides a video signal wireless communication method for a dual-sided wirelessly connected display screen, which is applicable to the dual-sided wirelessly connected display screen as described above. The method includes the following steps:

[0065] S10, the main video source signal is received. This main video source signal is divided into two main signals, corresponding to the front display data and the rear display data, respectively. The two main signals are wired to a third wireless communication component 85 via two cables. The third wireless communication component 85 has a structure and function basically the same as the first wireless communication component 40 or the second wireless communication component 50. The third wireless communication component 85 has a pair of transceiver units, a pair of bidirectional conversion modules, and a pair of wired network interfaces. The main video source signal is connected to the pair of transceiver units via the wired network interfaces and bidirectional conversion modules of the third wireless communication component. In this step, the main video source signal is output by the main signal module 86, which is preferably connected to a video host or set-top box, or other device capable of providing video signals.

[0066] S20, the frame of the housing frame 100 where the first wireless communication component 40 is installed is mechanically spliced ​​with the frame where the third wireless communication component 85 is installed; the first wireless communication component 40 and the third wireless communication component 85 are wirelessly connected at a distance that can be sensed by millimeter waves, and the pair of transceiver units of the third wireless communication component 85 wirelessly communicates with the first transceiver unit 41 and the second transceiver unit 42 of the first wireless communication component 40 respectively; the wireless communication signal carrying the main signal of the video source is sent to the first transceiver unit 41 and the second transceiver unit 42. In this step, the splicing of the housing frame 100 is tightly combined using the upper and lower alignment locking components 29, the alignment locking components and the auxiliary alignment magnetic components 39 as described above. The housing frame 100 is hollowed out at the positions where each wireless communication component is installed, shortening the distance between the two wireless communication components to the extreme. As mentioned above, the mounting plate 513 and the first circuit board 401 and the second circuit board 502 are also provided with signal transmission parts, preferably through holes, to maximize the efficiency and high speed of signal transmission.

[0067] S30, the first wireless communication component 40 converts the received wireless communication signal into a wired network signal. Specifically, it performs digital-to-analog signal conversion through its bidirectional conversion module, converting it into a wired network signal, which is then transmitted to each signal relay station via the wired network interface. Multiple transceiver units cascaded when multiple housing frames 100 are assembled, and each level of transceiver unit and its network interface-connected cables carry video signal data for its own level and all lower-level LED display modules 28. The wired network signals received by the first transceiver unit 41 and the second transceiver unit 42 are synchronously wired to a signal relay station for graded signal transmission. Graded signal transmission means that each corresponding signal relay station transmits its own signal to a front display receiving card 131 and a rear display receiving card 132 via wired transmission. The front display receiving card 131 and the rear display receiving card 132 select the received signal as the video signal to be displayed by each LED display module 28 at its level and transmit it via wired transmission to each LED display module 28.

[0068] In step S40, each signal relay station transmitting hierarchical signals simultaneously transmits all lower-level signals via wired connections to the second wireless communication component 50 within the same enclosure frame 100. The third transceiver unit 53 and the fourth transceiver unit 54 within the second wireless communication component 50 convert the received wired network signals into wireless communication signals and wirelessly transmit them to the next-level wireless communication component. By pairing corresponding wireless communication components on the top edge 101 and bottom edge 102 of the enclosure frame 100, signals can be transmitted from top to bottom. Similarly, pairing corresponding wireless communication components on the left edge 103 and right edge 104 of the enclosure frame 100 allows for signal transmission from left to right. Therefore, in practical applications, wireless signal transmission in both vertical and horizontal directions can be performed according to the arrangement of multiple enclosure frames 100, offering flexible assembly and overcoming the limitations of inconvenient wired network cable installation.

[0069] When multiple cabinet frames 100 are spliced ​​together, the two wireless communication components on each cabinet frame 100 respectively repeat steps S30 and S40 to complete the wireless communication of video signals for all LED display modules 28. Each transceiver unit can arbitrarily switch between receiver and transmitter based on control commands, or switch between uplink and downlink transmission based on control commands. During uplink transmission, it can feed back information from each LED display module 28 to a main display controller. Since the front and back sides use separate transmission paths that do not interfere with each other, the aforementioned dual-sided wireless connection display screen can display the same or different images on both sides.

[0070] It should be noted that the present invention is not limited to the above-described embodiments. Based on the inventive spirit of the present invention, those skilled in the art can make other changes, and these changes made in accordance with the inventive spirit of the present invention should be included within the scope of protection claimed by the present invention.

Claims

1. A double-sided wirelessly connected display screen, comprising a cabinet frame, multiple LED display modules, and a driving component, wherein the multiple LED display modules are disposed on the front and back of the cabinet frame, and the driving component comprises a main power driving module and a wireless power driving module, the main power driving module being used to supply power to the multiple LED display modules; the cabinet frame comprises a top frame, a bottom frame, a left frame, and a right frame; characterized in that, The dual-sided wireless connection display screen also includes a wireless connection module, which includes a first wireless communication component and a second wireless communication component that can perform wireless video signal communication. The first wireless communication component and the second wireless communication component are respectively installed on a pair of frames that can be spliced ​​according to their corresponding positions when the cabinet frame is spliced, so as to perform wireless transmission of video signals between LED display modules on the spliced ​​cabinet frame. The first wireless communication component includes a first circuit board, a first bidirectional conversion module, a second bidirectional conversion module, a first wired network interface, a second wired network interface, a first transceiver unit, and a second transceiver unit; the first transceiver unit, the first bidirectional conversion module, and the first wired network interface are sequentially connected and respectively disposed on the first circuit board; the second transceiver unit, the second bidirectional conversion module, and the second wired network interface are sequentially connected and respectively disposed on the first circuit board. The second wireless communication component includes a second circuit board, a third bidirectional conversion module, a fourth bidirectional conversion module, a third wired network interface, a fourth wired network interface, a third transceiver unit, and a fourth transceiver unit; the third transceiver unit, the third bidirectional conversion module, and the third wired network interface are sequentially connected and respectively disposed on the second circuit board; the fourth transceiver unit, the fourth bidirectional conversion module, and the fourth wired network interface are sequentially connected and respectively disposed on the second circuit board; The first wired network interface and the third wired network interface are connected inside the enclosure frame via a first signal relay station wired network; the second wired network interface and the fourth wired network interface are connected inside the enclosure frame via a second signal relay station wired network. Each transceiver unit has a receiving chip and a transmitting chip to switch between receiving and transmitting at will; each receiving chip and each transmitting chip has a millimeter-wave sensor so that when two adjacent transceiver units are spliced ​​together, they can communicate wirelessly with each other and transmit signals; each bidirectional conversion module is connected to a wired network interface at one end and to the corresponding transceiver unit at the other end to perform wired-to-wireless signal conversion; the first circuit board and the second circuit board are each provided with a signal pass-through section that allows wireless communication signals to pass through or be transmitted; The first wireless communication component and the second wireless communication component are respectively connected to a corresponding wireless power driver module to obtain power. The housing frame has two opposite side frames for splicing, each equipped with a male connector, a female connector, and a knob-type electrical connection structure. The male and female connectors are configured to interlock under the push of the knob-type electrical connection structure, allowing electrical connection between two adjacent double-sided wireless display screens via the male and female connectors on their respective side frames. The knob-type electrical connection structure includes a fixed plate, a sliding plate, a rotating lever, a rotating base, and a knob connected to the rotating base via a rotating shaft. The fixed plate has an inner surface and an outer surface, and the rotating base can... The slide plate is rotatably connected to the fixed plate and extends through the inner and outer surfaces of the fixed plate. The inner surface of the fixed plate is provided with a sliding groove. The slide plate is slidably connected to the sliding groove. One end of the rotating paddle is movably connected to the slide plate, and the other end is movably connected to one end of the rotating seat that extends into the inner surface. One end of the slide plate is connected to the male connector. By rotating the knob, the rotating seat drives the rotating paddle to rotate, which forces the slide plate to slide along the sliding groove toward the female connector, thereby driving the male connector to move toward the female connector and insert into the female connector. The knob has a first connecting hole, and the rotating base has a second connecting hole on the side facing the knob corresponding to the first connecting hole. The rotating shaft passes through the first connecting hole and the second connecting hole. One end of the rotating lever has a third connecting hole, and the other end has a fourth connecting hole. The rotating base has a first connecting post on the side facing the rotating lever corresponding to the third connecting hole, which is connected to the third connecting hole. The sliding plate has a second connecting post on the side facing the rotating lever corresponding to the fourth connecting hole, which is connected to the fourth connecting hole. The sliding plate also has a fifth connecting hole, and the sliding plate is connected to the male connector through the fifth connecting hole.

2. The dual-sided wireless connection display screen as described in claim 1, characterized in that, Multiple LED display modules are installed on both the front and back of the enclosure frame, and the multiple LED display modules on each side are combined to form a large display screen. A control panel is provided on either the front or back of the enclosure frame. The control panel has a display power driver and a signal driver. Each LED display module on the front and back of the enclosure frame is respectively connected to the power driver and the signal driver. The signal driver includes a front display signal driver and a back signal driver. The front display signal driver and the back signal driver are respectively connected to a corresponding signal relay station. Each signal driver is connected to one or more LED display modules through a corresponding connector to distribute the video signal transmitted by the transceiver unit to each LED display module.

3. The dual-sided wireless connection display screen as described in claim 1, characterized in that, The first signal relay station and the second signal relay station are respectively equipped with a first-channel signal cascade relay interface and a second-channel signal cascade relay interface. In the first and second wireless communication components on the same housing frame, the first wired network interface and the third wired network interface are respectively connected to two interfaces of the first-channel signal cascade relay interface via cables, and the second wired network interface and the fourth wired network interface are respectively connected to two interfaces of the second-channel signal cascade relay interface via cables. Each signal cascade relay interface is also connected to a corresponding signal driver unit to transmit the required video signal data.

4. The dual-sided wireless connection display screen as described in claim 1, characterized in that, The signal transmission section includes a first group of signal transmission sections and a second group of signal transmission sections; the first group of signal transmission sections is disposed on the first circuit board or a part of the first circuit board, and the second group of signal transmission sections is disposed on the second circuit board or a part of the second circuit board. When each signal transmission section is disposed on a corresponding circuit board, each signal transmission section is a through hole penetrating the corresponding circuit board and is opened at a position close to the corresponding transceiver unit; the two groups of signal transmission sections are located correspondingly or symmetrically on the first circuit board and the second circuit board.

5. The dual-sided wireless connection display screen as described in claim 1, characterized in that, The first circuit board and the second circuit board are detachably mounted on corresponding mounting frames in the housing frame. Each mounting frame has a mounting slot extending through the thickness of the frame. The first circuit board and the second circuit board are each mounted on a mounting plate. The mounting plate has a receiving slot so that the first circuit board and the second circuit board are embedded in the receiving slot. The first circuit board, the second circuit board, and each of the wired network interfaces are mounted inwards. Each mounting slot has mounting posts at both ends. When the two housing frames are spliced, the two mounting plates with corresponding circuit boards are fastened to the corresponding mounting posts by fasteners to be installed in the mounting slot. When the two housing frames are spliced, the distance between the transceiver units in the two adjacent wireless communication components is within 20 mm. The mounting plate is embedded in the mounting slot so that the outer surface of the mounting plate is basically flush with the outer surface of the corresponding mounting frame. The wireless power drive module is mounted on the corresponding circuit board.

6. The dual-sided wireless connection display screen as described in claim 1, characterized in that, The first wireless communication component and the second wireless communication component are used for bidirectional transmission of video signals, with a transmission bandwidth of 1G or more. When multiple cabinet frames are spliced ​​together, they share a network communication bandwidth of 1G or more. When multiple cabinet frames are spliced ​​together, multiple transceiver units are cascaded in sequence. The transceiver units at each level and the cables connected to each wired network interface carry the video signal data of the current level and all lower-level LED display modules.

7. The dual-sided wireless connection display screen as described in claim 1, characterized in that, The knob-type electrical connection structure also includes a stop-lock elastic plunger glass ball. The slide plate has a glass ball mounting groove on its side facing the fixed plate. The plunger portion of the stop-lock elastic plunger glass ball is installed in the glass ball mounting groove, and the glass ball portion of the stop-lock elastic plunger glass ball protrudes from the end face of the glass ball mounting groove. The fixed plate has a first positioning hole and a second positioning hole located above the first positioning hole. In the initial state, the stop-lock elastic plunger glass ball is engaged with the first positioning hole. When the slide plate moves the male connector towards the female connector until it is inserted into the female connector, the... The stop elastic plunger glass ball moves synchronously with the slide plate and engages with the second positioning hole; the distance between the first positioning hole and the second positioning hole is equal to the distance between the male connector and the female connector; the length direction of the slide groove is consistent with the direction in which the male connector moves towards the female connector; the inner wall of the interface of the female connector is provided with a guide protrusion, and the outer wall of the interface of the male connector is provided with a guide groove corresponding to the guide protrusion. When the male connector moves towards the female connector, the guide protrusion and the guide groove automatically engage to achieve guiding positioning.

8. The dual-sided wireless connection display screen as described in claim 1, characterized in that; The top frame of the enclosure is spliced ​​with the bottom frame of a hanging beam. The hanging beam is a hollow frame structure, and the interior of the hanging beam houses a main power connection structure, a wireless power supply, a third wireless communication component, and a main signal module. The third wireless communication component has a structure and function that are basically the same as the first or second wireless communication component. The third wireless communication component has a pair of transceiver units, a pair of bidirectional conversion modules, and a pair of wired network interfaces. The main power connection structure includes at least one female connector or at least one male connector, and the female connector is connected to an external power supply via a main power cable. The main signal module has two signal outputs, which are respectively connected to the two transceiver units of the third wireless communication component via cables. The wireless power supply is connected to the third wireless communication component to provide power. The two transceiver units of the third wireless communication component are respectively wirelessly connected to the two transceiver units of the first wireless communication component spliced ​​to the enclosure frame of the hanging beam. The hanging beam has hooks and / or hangers for external installation.

9. A method for wireless communication of video signals for a dual-sided wirelessly connected display screen, applicable to the dual-sided wirelessly connected display screen as described in any one of claims 1-8, characterized in that, The method includes the following steps: S10, access the main video source signal, which is divided into two main signals corresponding to the front display data and the back display data respectively; connect the two main signals of the main video source signal to a third wireless communication component via two cables. The third wireless communication component has a structure and function that are basically the same as the first or second wireless communication component. The third wireless communication component has a pair of transceiver units, a pair of bidirectional conversion modules, and a pair of wired network interfaces. The main video source signal is connected to the pair of transceiver units via the wired network interface and bidirectional conversion module of the third wireless communication component via the two cables respectively. S20, mechanically splice the frame of the housing where the first wireless communication component is installed with the frame where the third wireless communication component is installed; wirelessly connect the first wireless communication component and the third wireless communication component at a distance that can be sensed by millimeter waves, and wirelessly communicate one-to-one with the first and second transceiver units in the first wireless communication component; send the wireless communication signal carrying the main signal of the video source to the first and second transceiver units. S30, the first wireless communication component converts the received wireless communication signal into a wired network signal; multiple transceiver units are cascaded sequentially when multiple cabinet frames are spliced ​​together, and the cables connected to each level of transceiver unit and each wired network interface carry video signal data of the current level and all lower-level LED display modules; synchronously, each wired network interface in the first wireless communication component is wired to a signal relay station for hierarchical signal transmission, which means that the signal of the current level is wired to a front display receiving card and a rear display receiving card through the corresponding signal relay station; the front display receiving card and the rear display receiving card select the received signal as the video signal that should be displayed by each LED display module of the current level and transmit it to each LED display module via wired transmission; S40, each signal relay station that performs hierarchical signal transmission simultaneously transmits all lower-level signals to the second wireless communication component in the same enclosure frame via wired transmission. The second wireless communication component converts the received wired network signals into wireless communication signals and wirelessly transmits them to the next level wireless communication component. When multiple cabinet frames are spliced ​​together, the two wireless communication components on each cabinet frame repeat the above steps S30 and S40 respectively to complete the wireless communication of video signals of all LED display modules on each cabinet frame; wherein, each transceiver unit can arbitrarily switch to receiver or transmitter based on control commands, or arbitrarily switch between uplink transmission and downlink transmission based on control commands; during uplink transmission, it can feed back the information of each LED display module to a main display controller.

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