Display modules and display devices

Abstract

This application discloses a display module and display device, relating to the field of display and presentation technology. The display module includes: a control module connected to a wireless transceiver module or an external device; the wireless transceiver module is wirelessly connected to the wireless transceiver module of another display module; the control module is used to transmit video signals to be sent to the wireless transceiver module; the wireless transceiver module is used to transmit video signals wirelessly; the wireless transceiver module is also used to receive video signals and transmit them to the control module. Compared with existing technologies, this application, by setting mutually cooperating control modules and wireless transceiver modules in each display module, enables video signals to be wirelessly transmitted sequentially along the arrangement direction between multiple display modules, thereby realizing wireless cascading of display modules, effectively simplifying the wiring complexity of multi-screen splicing, and improving on-site deployment efficiency.

Description

Technical Field

[0001] This application relates to the field of display and exhibition technology, and in particular to a display module and display device. Background Technology

[0002] In scenarios such as stage rental, exhibitions, and large conferences, it is often necessary to quickly splice multiple LED displays into a single screen to achieve simultaneous display of large-size images. Currently, LED display systems primarily employ a wired cascading method, where each screen is sequentially connected via physical media such as network cables, with video data transmitted from the first screen to the next. This method has significant shortcomings in practical deployment: firstly, as the number of screens increases, the connecting cables become complex and chaotic, leading to lengthy on-site construction and debugging; secondly, cable connections constrain the splicing order and position of the screens, reducing the flexibility and deployment efficiency of the system network.

[0003] Therefore, how to simplify the wiring of multi-screen LED displays and improve deployment efficiency is an urgent problem to be solved. Summary of the Invention

[0004] The main purpose of this application is to provide a display module and display device, which aims to solve the technical problem of how to simplify the wiring of multi-screen LED displays and improve deployment efficiency.

[0005] To achieve the above objectives, this application proposes a display module, which includes a control module and a wireless transceiver module; The control module is connected to the wireless transceiver module or an external device, and the wireless transceiver module is wirelessly connected to the wireless transceiver module of another display module. The control module is used to transmit the video signal to be sent to the wireless transceiver module; The wireless transceiver module is used to transmit the video signal wirelessly; The wireless transceiver module is also used to receive the video signal and transmit the video signal to the control module; The display module further includes: a modulation and demodulation module; The modulation and demodulation module is connected between the control module and the wireless transceiver module; The modulation and demodulation module is used to perform ASK modulation on the video signal output by the control module, and output the ASK-modulated video signal to the wireless transceiver module. The modulation and demodulation module is further configured to receive the video signal from the wireless transceiver module, perform ASK demodulation on the received video signal, and output the ASK demodulated video signal to the control module.

[0006] In one embodiment, the wireless transceiver module includes: a wireless receiving unit and a wireless transmitting unit; The output terminal of the wireless receiving unit is connected to the input terminal of the control module, and the input terminal of the wireless transmitting unit is connected to the output terminal of the control module. The wireless receiving unit is used to transmit the received video signal to the wireless transmitting unit through the control module; The wireless transmitting unit is used to transmit the video signal to the wireless receiving unit of another display module.

[0007] In one embodiment, the display module further includes a screen frame, which includes an upper frame and a lower frame; The upper frame and the lower frame are connected by a hinge to allow the display module to switch between an unfolded state and a folded state.

[0008] In one embodiment, the display module further includes: a telescopic cable chain; The first end of the telescopic cable chain is connected to the upper frame, and the second end of the telescopic cable chain is connected to the lower frame. The telescopic cable chain is used to accommodate the cable connecting the upper frame and the lower frame.

[0009] In one embodiment, the display module further includes a lifting base, which includes a base body, a lifting column, and a lifting control unit. The first end of the lifting column is fixedly connected to the base body, and the second end of the lifting column is fixedly connected to the screen frame of the display module. The lifting control unit is electrically connected to the lifting column and is used to control the lifting movement of the lifting column.

[0010] In one embodiment, the lifting base further includes: a slider and a column profile; The slider is fixedly connected to the screen frame of the display module, and the slider is slidably disposed in the groove of the column profile; The groove of the column profile is used to limit the displacement of the slider in the forward and backward and left and right directions during the lifting and lowering process.

[0011] In one embodiment, the display module further includes: a side lock assembly; The side lock assembly is disposed on the side of the screen frame of the display module; The edge locking assembly is used to lock two adjacent display modules when the display module is spliced ​​with an adjacent display module.

[0012] In one embodiment, the display module further includes: positioning posts and positioning holes; The positioning post is disposed on the first side of the screen frame, and the positioning hole is disposed on the opposite second side of the screen frame; The positioning post is used to cooperate with the positioning holes of the adjacent display module for positioning when the display module is spliced ​​with the adjacent display module.

[0013] In addition, to achieve the above objectives, this application also proposes a display device, which includes a plurality of display modules as described above.

[0014] This application discloses a display module comprising: a control module and a wireless transceiver module; the control module is connected to the wireless transceiver module or an external device, and the wireless transceiver module is wirelessly connected to the wireless transceiver module of another display module; the control module is used to transmit a video signal to be sent to the wireless transceiver module; the wireless transceiver module is used to transmit the video signal wirelessly; the wireless transceiver module is also used to receive the video signal and transmit the video signal to the control module.

[0015] This application incorporates several display modules within a display device. Each display module includes: a control module connected to a wireless transceiver module or an external device; the wireless transceiver module wirelessly connected to the wireless transceiver module of another display module; a control module for transmitting video signals to be sent to the wireless transceiver module; a wireless transceiver module for transmitting video signals wirelessly; and a wireless transceiver module for receiving video signals and transmitting them back to the control module. Compared to existing technologies, this application, by incorporating mutually cooperating control modules and wireless transceiver modules within each display module, enables video signals to be wirelessly transmitted sequentially along the arrangement direction between multiple display modules. This achieves wireless cascading of display modules, effectively simplifying the wiring complexity during multi-screen splicing and improving on-site deployment efficiency. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of the first embodiment of the display module proposed in this application; Figure 2 This is a schematic diagram of the screen frame structure in the second embodiment of the display module proposed in this application. Figure 3 This is a schematic diagram of the telescopic cable chain structure in the second embodiment of the display module proposed in this application. Figure 4 This is a schematic diagram of the lifting base in the third embodiment of the display module proposed in this application. Figure 5 This is a schematic diagram of the side lock assembly in the third embodiment of the display module proposed in this application. Figure 6 This is a schematic diagram of the positioning column structure in the third embodiment of the display module proposed in this application. Figure 7 This is a schematic diagram of the positioning hole structure in the third embodiment of the display module proposed in this application.

[0019] Explanation of icon numbers:

[0020] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0025] It should be noted that in scenarios such as stage rental, exhibitions, and large conferences, it is often necessary to quickly splice multiple LED displays into a single screen to achieve simultaneous display of large-size images. In existing technologies, LED display systems mainly adopt a wired cascading method, where each screen is connected sequentially via physical media such as network cables, with video data transmitted from the first screen to the next. This method has significant shortcomings in actual deployment: firstly, as the number of screens increases, the connecting cables become complex and messy, leading to lengthy on-site construction and debugging; secondly, cable connections constrain the splicing order and position of the screens, reducing the flexibility and deployment efficiency of the system network.

[0026] To address the aforementioned technical issues, this embodiment incorporates several display modules within the display device. Each display module includes: a control module 1 connected to a wireless transceiver module 2 or an external device; the wireless transceiver module 2 wirelessly connected to another display module's wireless transceiver module 2; the control module 1 transmits the required video signal to the wireless transceiver module 2; the wireless transceiver module 2 transmits the video signal wirelessly; and the wireless transceiver module 2 also receives the video signal and transmits it back to the control module 1. Compared to existing methods, this embodiment, by incorporating a cooperating control module 1 and wireless transceiver module 2 within each display module, enables the video signal to be wirelessly transmitted sequentially along the arrangement direction between multiple display modules. This achieves wireless cascading of display modules, effectively simplifying the wiring complexity during multi-screen splicing and improving on-site deployment efficiency.

[0027] For ease of understanding, the following is combined with Figures 1 to 7 The display module provided in the embodiments of this application will be described in detail.

[0028] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the display module proposed in this application.

[0029] like Figure 1 As shown, in this embodiment, the display module includes: a control module 1 and a wireless transceiver module 2; The control module 1 is connected to the wireless transceiver module 2 or an external device, and the wireless transceiver module 2 is wirelessly connected to the wireless transceiver module 2 of another display module. The control module 1 is used to transmit the video signal to be sent to the wireless transceiver module 2; The wireless transceiver module 2 is used to transmit the video signal wirelessly; The wireless transceiver module 2 is also used to receive the video signal and transmit the video signal to the control module 1; The display module further includes: a modulation and demodulation module 3; The modulation and demodulation module 3 is connected between the control module 1 and the wireless transceiver module 2; The modulation and demodulation module 3 is used to perform ASK modulation on the video signal output by the control module 1, and output the ASK-modulated video signal to the wireless transceiver module 2. The modulation and demodulation module 3 is further configured to receive the video signal from the wireless transceiver module 2, perform ASK demodulation on the received video signal, and output the ASK demodulated video signal to the control module 1.

[0030] It should be noted that the aforementioned control module 1 can be a unit for data processing and signal control of the display module, for example, implemented using a SOC chip, for receiving video signals input from an external video source or transmitted from other display modules, and processing the video signals into a data format suitable for display by this display module and suitable for forwarding.

[0031] The aforementioned wireless transceiver module 2 can be a communication unit for transmitting and receiving wireless signals, such as a millimeter-wave wireless communication module, which establishes a communication link with the wireless transceiver modules 2 of other display modules wirelessly.

[0032] The aforementioned wireless connection refers to a communication connection method that does not require physical cables and is conducted via wireless signals, such as a wireless connection based on millimeter wave technology.

[0033] The aforementioned video signal can be a data stream containing the image or video content to be displayed, used to drive the display module to display the corresponding screen area.

[0034] The other display module mentioned above can refer to other display modules that are physically adjacent to the current display module and interact with it via a wireless communication link. For example, when multiple display modules are spliced ​​together to form a large screen, the adjacent display module located to the left or right of the current display module.

[0035] The aforementioned modulation and demodulation module 3 can be a circuit unit for modulating and demodulating video signals, such as an ASK modulation and demodulation chip. It is connected between the control module 1 and the wireless transceiver module 2 and is used to convert the baseband video signal into a modulation signal suitable for wireless transmission and to restore the received wireless signal to the baseband video signal.

[0036] The aforementioned ASK modulation can refer to amplitude shift keying modulation, which uses the amplitude of a carrier signal to represent a digital signal, and loads video data onto the carrier for transmission.

[0037] The aforementioned ASK demodulation refers to amplitude shift keying demodulation, which extracts the original video data from the received ASK modulated signal. In this embodiment, the wireless transceiver module 2 serves as a radio frequency front-end unit, used to transmit millimeter-wave signals between the modulation / demodulation module 3 and the external antenna.

[0038] In its implementation, the aforementioned display module receives video signals through its control module 1. These video signals can originate from an external video source device or from signals transmitted wirelessly by the preceding display module. Upon receiving the video signal, control module 1 processes the image data corresponding to its display area and outputs it to the display panel for display. Simultaneously, it transmits the complete video signal to wireless transceiver module 2 via internal electrical connections. Wireless transceiver module 2, after acquiring the video signal, converts it into a wireless signal and radiates it outwards via an antenna, transmitting it wirelessly to the wireless transceiver module 2 of another display module. Upon receiving the wireless signal, the wireless transceiver module 2 of the other display module recovers the video signal and transmits it back to its own control module 1, which then performs further display and forwarding processing.

[0039] When the aforementioned display module transmits video signals, the control module 1 outputs the video signal to the modem module 3. After receiving the video signal output by the control module 1, the modem module 3 performs ASK modulation processing on the video signal, loading the baseband video signal onto a millimeter-wave carrier wave to form an ASK-modulated radio frequency signal. Subsequently, the modem module 3 outputs the ASK-modulated radio frequency signal to the wireless transceiver module 2, which radiates it outwards through its antenna. When the aforementioned display module receives video signals, the wireless transceiver module 2 receives a millimeter-wave radio frequency signal from another display module through its antenna and outputs the received radio frequency signal to the modem module 3. The modem module 3 performs ASK demodulation processing on the received radio frequency signal, recovering the original video signal from the radio frequency signal. Subsequently, the modem module 3 outputs the ASK-demodulated video signal to the control module 1, which performs subsequent display processing and forwarding processing.

[0040] To facilitate understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, in a stage rental scenario, the user needs to horizontally splice three display modules to form a large screen. The first display module obtains a complete video signal from a video player via a wired connection. After receiving the video signal, its control module 1 extracts the left third of the image for display, and simultaneously transmits the complete video signal to its wireless transceiver module 2 via internal electrical connection. The wireless transceiver module 2 of the first display module transmits the video signal wirelessly to the wireless transceiver module 2 of the second display module via millimeter wave. After receiving the video signal, the wireless transceiver module 2 of the second display module transmits the video signal to its control module 1. The control module 1 extracts the middle third of the image for display and transmits the complete video signal again to its wireless transceiver module 2, which then continues to wirelessly transmit it to the third display module.

[0041] For example, in a large screen formed by horizontally splicing three display modules, the control module 1 of the first display module outputs the video signal to the modem module 3. The modem module 3 performs ASK modulation on the video signal, loads the video signal onto a millimeter-wave carrier wave, forms an ASK-modulated radio frequency signal, and outputs it to the wireless transceiver module 2, which then transmits it outward through an antenna. The wireless transceiver module 2 of the second display module receives the millimeter-wave radio frequency signal through its antenna and outputs the radio frequency signal to its internal modem module 3. The modem module 3 performs ASK demodulation on the radio frequency signal, recovers the original video signal, and outputs the recovered video signal to the control module 1. The control module 1 then displays the signal and forwards it to the third display module for further processing.

[0042] Furthermore, in order to achieve wireless transmission between adjacent display modules, continue as follows Figure 1 As shown, in this embodiment, the wireless transceiver module 2 includes: a wireless receiving unit 21 and a wireless transmitting unit 22; The output terminal of the wireless receiving unit 21 is connected to the input terminal of the control module 1, and the input terminal of the wireless transmitting unit 22 is connected to the output terminal of the control module 1. The wireless receiving unit 21 is used to transmit the received video signal to the wireless transmitting unit 22 through the control module 1; The wireless transmitting unit 22 is used to transmit the video signal to the wireless receiving unit 21 of another display module.

[0043] It should be noted that the wireless receiving unit 21 mentioned above can be a component of the wireless transceiver module 2 specifically used for receiving wireless signals, such as a millimeter-wave wireless receiver. Its input end is connected to the antenna, and its output end is electrically connected to the input end of the control module 1. It is used to receive wireless signals from other display modules and recover the signals as video data.

[0044] The aforementioned wireless transmitting unit 22 may be a component of the wireless transceiver module 2 specifically used for transmitting wireless signals, such as a millimeter-wave wireless transmitter. Its input terminal is electrically connected to the output terminal of the control module 1, and its output terminal is connected to the antenna, used to convert video data into wireless signals for external transmission.

[0045] In its implementation, the wireless transceiver module 2 of the aforementioned display module contains a wireless receiving unit 21 and a wireless transmitting unit 22. The output of the wireless receiving unit 21 is electrically connected to the input of the control module 1 via wires on a circuit board, and the input of the wireless transmitting unit 22 is electrically connected to the output of the control module 1 via wires on a circuit board. When the wireless receiving unit 21 receives a wireless signal from another display module, it demodulates the received signal to recover the video signal and transmits it to the input of the control module 1 through its output. Upon receiving the video signal, the control module 1 processes it to display the image of its own display module and transmits it to the input of the wireless transmitting unit 22 through its output. The wireless transmitting unit 22, after acquiring the video signal, modulates it and converts it into a wireless signal, which is then radiated outwards through an antenna and transmitted to the wireless receiving unit 21 of the other display module.

[0046] For ease of understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, in a large screen formed by horizontally splicing three display modules, the second display module serves as an intermediate cascade node. The wireless receiving unit 21 of the second display module receives a millimeter-wave signal transmitted from the wireless transmitting unit 22 of the first display module. The wireless receiving unit 21 demodulates the received millimeter-wave signal to recover the complete video signal and transmits the video signal to the input of the control module 1 of the second display module through its output terminal. After receiving the video signal, the control module 1 of the second display module extracts the middle third of the image for display and transmits the complete video signal to the input of the wireless transmitting unit 22 through its output terminal. The wireless transmitting unit 22 of the second display module modulates the video signal and converts it into a millimeter-wave signal, which is then transmitted outward through an antenna to the wireless receiving unit 21 of the third display module. It should be emphasized that the video signal of the first display module can be directly obtained by the control module and external devices through wired or wireless connections.

[0047] This embodiment includes several display modules within the display device. Each display module comprises: a control module 1 connected to a wireless transceiver module 2 or an external device; the wireless transceiver module 2 wirelessly connected to another display module's wireless transceiver module 2; the control module 1 transmitting the video signal to be sent to the wireless transceiver module 2; the wireless transceiver module 2 transmitting the video signal wirelessly; and the wireless transceiver module 2 receiving the video signal and transmitting it back to the control module 1. Compared to existing methods, this embodiment, by incorporating a cooperating control module 1 and wireless transceiver module 2 within each display module, enables the video signal to be wirelessly transmitted sequentially along the arrangement direction between multiple display modules, thereby achieving wireless cascading of display modules. This effectively simplifies the wiring complexity during multi-screen splicing and improves on-site deployment efficiency.

[0048] Reference Figure 2 , Figure 2 This is a schematic diagram of the structure of the screen frame 4 in the second embodiment of the display module proposed in this application.

[0049] Based on the above embodiments, a second embodiment of this application is proposed. In order to support and fix the various functional components of the display module, such as... Figure 2 As shown, in this embodiment, the display module further includes a screen frame 4, which includes an upper frame 41 and a lower frame 42. The upper frame 41 and the lower frame 42 are rotatably connected by a hinge so that the display module can switch between an unfolded state and a folded state.

[0050] It should be noted that the aforementioned screen frame 4 can be the main structure used to support and fix the various functional components of the display module, such as a frame structure made of metal profiles, which is used to install components such as the control module 1, the wireless transceiver module 2, and the display panel.

[0051] The aforementioned upper frame 41 can be the upper part of the screen frame 4, and the aforementioned lower frame 42 can be the lower part of the screen frame 4, together forming a complete screen frame 4. The aforementioned hinge can be a mechanical connector used to connect two components and allow relative rotation, such as a hinged hinge or a concealed hinge, with its first leaf fixed to the upper frame 41 and its second leaf fixed to the lower frame 42, so that the upper frame 41 and the lower frame 42 can rotate relative to each other around the hinge axis.

[0052] The aforementioned unfolded state can refer to the upper frame 41 and the lower frame 42 being on the same plane or at a predetermined angle, so that the display module forms a complete display surface for normal use.

[0053] The aforementioned folded state can refer to the upper frame 41 and the lower frame 42 being rotated relative to each other and then stacked together, reducing the overall volume of the display module, which facilitates transportation and storage.

[0054] In its implementation, the display module's screen frame 4 consists of an upper frame 41 and a lower frame 42. The upper frame 41 and lower frame 42 are rotatably connected by a hinge. The first part of the hinge is fixedly installed on the bottom edge of the upper frame 41, and the second part is fixedly installed on the top edge of the lower frame 42. The two parts are rotatably engaged via a hinge shaft. When the display module needs to be in the unfolded state, the user or a drive mechanism rotates the upper frame 41 upwards, so that the upper frame 41 and lower frame 42 are in the same plane. The bottom edge of the upper frame 41 and the top edge of the lower frame 42 are either in contact with each other or maintain a predetermined gap, forming a complete screen frame 4 structure. At this time, the display panel forms a complete display area under the support of the frame. When the display module needs to be folded, the user or the drive mechanism can rotate the upper frame 41 downwards, so that the upper frame 41 and the lower frame 42 rotate relative to each other, and the front of the upper frame 41 and the front of the lower frame 42 are attached to each other, or the back of the upper frame 41 and the back of the lower frame 42 are attached to each other, thereby reducing the overall height of the display module, which is convenient for packaging, transportation and storage.

[0055] To facilitate understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, after a large event, staff need to pack and transport the display module. First, staff release the locking buckles between the upper frame 41 and the lower frame 42. Then, grasping the top edge of the upper frame 41, they flip it downwards, rotating it around the hinge until the front of the upper frame 41 is flush with the front of the lower frame 42. At this point, the display module is folded, reducing its overall height from two meters when unfolded to approximately one meter. The folded display module can be easily pushed into a flight case or transported to a vehicle, significantly reducing space requirements. When needed again, staff remove the folded display module, flip the upper frame 41 upwards, rotating it around the hinge until it is on the same plane as the lower frame 42, and then secure them with the buckles. The display module is then restored to its unfolded state and can be displayed and assembled normally.

[0056] Furthermore, in order to accommodate and protect cables, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the telescopic cable chain 5 in the second embodiment of the display module proposed in this application. In this embodiment, the display module further includes: the telescopic cable chain 5; The first end of the telescopic cable chain 5 is connected to the upper frame 41, and the second end of the telescopic cable chain 5 is connected to the lower frame 42. The telescopic cable chain 5 is used to accommodate the cable connecting the upper frame 41 and the lower frame 42.

[0057] It should be noted that the aforementioned telescopic cable chain 5 can be a telescopic chain structure used to accommodate and protect cables, such as a chain-like sheath formed by multiple chain links hinged sequentially, with an internal hollow cavity for cables to pass through. Its overall length can extend and retract with the relative rotation between the upper frame 41 and the lower frame 42. The first end of the aforementioned telescopic cable chain 5 can be the starting end of the cable chain, fixed to the corresponding position of the upper frame 41 by a connector, and the second end of the aforementioned telescopic cable chain 5 can be the ending end of the cable chain, fixed to the corresponding position of the lower frame 42 by a connector.

[0058] The aforementioned cables may be wire harnesses connecting the internal electronic components of the upper frame 41 and the lower frame 42, such as power lines, signal lines, control lines, etc., used to transmit power and data signals between the upper frame 41 and the lower frame 42.

[0059] In its implementation, the aforementioned display module incorporates a telescopic cable chain 5 between the upper frame 41 and the lower frame 42. The first end of the telescopic cable chain 5 is fixedly connected to the bottom edge or a suitable position on the back of the upper frame 41, and the second end is fixedly connected to the top edge or a suitable position on the back of the lower frame 42. Cables connecting the internal electronic components of the upper frame 41 and the lower frame 42 pass through the hollow cavity of the telescopic cable chain 5 and are arranged along the extension direction of the cable chain. When the display module is in the unfolded state, the upper frame 41 and the lower frame 42 are on the same plane, the telescopic cable chain 5 is straightened and extended, and the cables remain naturally straight inside the cable chain, free from additional tension. When the display module switches from the unfolded state to the folded state, the upper frame 41 rotates downward around the hinge, and the telescopic cable chain 5 gradually compresses as the relative angle between the upper frame 41 and the lower frame 42 changes. The relative rotation of each link of the cable chain forms a curved arc, and the cables housed inside the cable chain bend orderly as the cable chain is compressed, avoiding compression, excessive bending, or friction with the frame edge during the folding process. When the display module is in the fully folded state, the telescopic cable chain 5 is in the compressed state, and the cables maintain a safe bending radius inside the cable chain.

[0060] For ease of understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, in a scenario where the display module is being prepared for folding and packaging, after the worker unlocks the latch between the upper frame 41 and the lower frame 42, they begin to flip the upper frame 41 downwards. At this time, the telescopic cable chain 5 connecting the upper frame 41 and the lower frame 42 gradually compresses as the upper frame 41 rotates. The power and signal cables running inside the cable chain are guided by the chain and bent in an orderly manner along a predetermined path, preventing the cables from being pinched by the edges of the upper frame 41 and the lower frame 42 or from breaking due to an excessively small bending radius. When the upper frame 41 is completely folded to fit snugly against the lower frame 42, the telescopic cable chain 5 is in a compressed state, and the cables are completely stored inside the cable chain, ensuring the safety of the cables and making the folded display module look neat, facilitating transportation and storage. When it is necessary to unfold the display module again, the upper frame 41 is flipped upwards, and the telescopic cable chain 5 gradually extends, restoring the cables to a straight state inside the cable chain, ensuring normal electrical connection.

[0061] Reference Figure 4 , Figure 4 This is a schematic diagram of the lifting base 6 in the third embodiment of the display module proposed in this application.

[0062] Based on the above embodiments, a third embodiment of this application is proposed. To support the display module and achieve height adjustment, as follows... Figure 4 As shown, in this embodiment, the display module further includes a lifting base 6, which includes a base body 61, a lifting column 62, and a lifting control unit 63. The first end of the lifting column 62 is fixedly connected to the base body 61, and the second end of the lifting column 62 is fixedly connected to the screen frame 4 of the display module. The lifting control unit 63 is electrically connected to the lifting column 62 and is used to control the lifting movement of the lifting column 62.

[0063] It should be noted that the aforementioned lifting base 6 can be a support structure used to support the display module and achieve height adjustment. For example, it can be a support device formed by combining an electric lifting column and a base, which can support the screen frame 4 of the display module as a whole and can change the support height as needed.

[0064] The aforementioned base body 61 can be the bottom support component of the lifting base 6, such as a chassis structure formed by welding metal plates or profiles, with casters installed at the bottom for easy movement. The base body 61 is used to fix the lifting column 62 and provide a stable support foundation.

[0065] The aforementioned lifting column 62 can be an actuator capable of axial extension and retraction, such as an electric push rod, a hydraulic lifting column 62, or a screw lifting mechanism. Its first end is fixed to the base body 61, and its second end is connected to the screen frame 4 of the display module. The screen frame 4 is raised and lowered through the extension and retraction movement.

[0066] The aforementioned lifting control unit 63 can be an electrical unit for controlling the movement of the lifting column 62, such as a control box containing a control circuit board, a drive circuit and an operation panel. It is electrically connected to the lifting column 62, and after receiving user commands, it outputs drive signals to the lifting column 62 to control the extension and retraction movement of the lifting column 62.

[0067] In its implementation, the lifting base 6 of the aforementioned display module is placed on the ground or other supporting surface via its base body 61, providing a stable support foundation. The first end of the lifting column 62 is fixedly connected to the upper surface of the base body 61 by bolts or welding, and the second end of the lifting column 62 is fixedly connected to the bottom or back of the screen frame 4 of the display module via a connector. The lifting control unit 63 is electrically connected to the lifting column 62 via wires, and the lifting control unit 63 contains control and drive circuits. When the user needs to adjust the display height of the display module, they input a lifting command through the operation panel of the lifting control unit 63, such as pressing the up or down button. After receiving the user command, the lifting control unit 63 outputs a corresponding drive signal to the lifting column 62, controlling the lifting column 62 to extend or retract. During extension, the second end of the lifting column 62 moves upward, causing the screen frame 4 fixedly connected to the second end to move upward, increasing the overall height of the display module. During retraction, the second end of the lifting column 62 moves downward, causing the screen frame 4 to move downward, decreasing the overall height of the display module.

[0068] To facilitate understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For instance, in an outdoor performance setting, staff need to assemble multiple display modules into a large screen and adjust the screen height according to the viewing angle of the audience. First, staff move the lifting base 6 to a predetermined position, fixing the second end of the lifting column 62 to the screen frame 4 of the display module. Then, staff issue an upward command via the upward button on the lifting control unit 63. The lifting control unit 63 drives the lifting column 62 to extend, and the second end of the lifting column 62 moves the screen frame 4 upward, raising the bottom of the display module to a height of one meter above the ground. When the screen height needs to be lowered to accommodate the viewing needs of another location, staff issue a downward command via the downward button on the lifting control unit 63. The lifting control unit 63 drives the lifting column 62 to retract, and the second end of the lifting column 62 moves the screen frame 4 downward, lowering the bottom of the display module to a height of 0.5 meters above the ground. In a large screen scenario formed by assembling multiple display modules, the lifting bases 6 of each display module can be cascaded to achieve synchronous lifting, maintaining a consistent height for the entire screen.

[0069] Furthermore, to allow the display module to move easily, continue as follows Figure 4 As shown, in this embodiment, the lifting base 6 further includes: a slider 64 and a column profile 65; The slider 64 is fixedly connected to the screen frame 4 of the display module, and the slider 64 is slidably disposed in the groove of the column profile 65; The groove of the column profile 65 is used to limit the displacement of the slider 64 in the front-back direction and the left-right direction during the lifting process.

[0070] It should be noted that the aforementioned slider 64 can be a mechanical component fixed to the screen frame 4 and cooperating with the column profile 65 to achieve a guiding function. For example, it can be a block structure formed by processing metal materials, with sliding contact surfaces that cooperate with the slide groove on its interior or surface, and bearings can be installed to reduce sliding friction. The aforementioned column profile 65 can be a longitudinal support profile with a specific cross-sectional shape, such as a hollow column formed by extrusion of aluminum alloy, with a slide groove extending along its length on at least one side. The aforementioned slide groove can be a groove structure opened on the surface of the column profile 65, with a cross-sectional shape matching the shape of the slider 64, used to accommodate the slider 64 and guide the slider 64 to slide along the extension direction of the slide groove. The aforementioned front-back direction can refer to the direction perpendicular to the display surface of the display module, that is, the normal direction of the display surface, and the front-back direction corresponds to the thickness direction of the display module. The aforementioned left-right direction can refer to the direction parallel to the display surface of the display module and perpendicular to the axial direction of the lifting column 62, and the left-right direction corresponds to the width direction of the display module.

[0071] In its implementation, the aforementioned lifting base 6 is equipped with a column profile 65, which is vertically fixed to the base body 61 or arranged parallel to the lifting column 62. The slider 64 is fixedly connected to the back or side of the display module's screen frame 4 by bolts or welding. The slider 64 is slidably embedded in the groove of the column profile 65, with the sliding contact surface of the slider 64 engaging with the inner wall of the groove, allowing the slider 64 to slide freely along the extension direction of the groove. Simultaneously, the side wall of the groove constrains the slider 64. When the lifting column 62 drives the screen frame 4 to move up and down, the screen frame 4 drives the slider 64 to slide synchronously along the groove. The inner wall of the groove restricts the forward and backward displacement of the slider 64 relative to the column profile 65 in the front-back direction, preventing the slider 64 from shifting in a direction perpendicular to the display surface; the inner wall of the groove also restricts the left and right displacement of the slider 64 relative to the column profile 65 in the left-right direction, preventing the slider 64 from shifting in the width direction of the display module. With the cooperation of slider 64 and slide groove, the screen frame 4 can only move along the extension direction of slide groove, i.e., the vertical direction, during the lifting process, and the offset in the front-back and left-right directions is effectively limited.

[0072] To facilitate understanding, the following explanation uses examples, but does not impose specific limitations on this embodiment. For example, in a scenario where multiple display modules are horizontally spliced ​​to form a large screen, each display module has a slider 64 fixed to its back, and the column profile 65 of the lifting base 6 is set vertically. When the lifting column 62 drives the screen frame 4 to rise or fall, the slider 64 slides synchronously within the groove of the column profile 65. Since the groove restricts the slider 64 in both the front-back and left-right directions, even if the multiple display modules are affected by external forces or uneven gravity distribution during the lifting process, each display module will not wobble or shift left or right, ensuring that the splicing gap between adjacent display modules is uniform and consistent, and the entire screen remains flat. Assuming that the weight distribution of a display module is biased towards the rear, the front-back limiting structure of the groove prevents the screen frame 4 from tilting backward, keeping the display module in a vertical posture at all times.

[0073] Furthermore, in order to mechanically lock two adjacent display modules at the splicing position, such as... Figure 5 As shown, Figure 5 This is a schematic diagram of the side-locking component 7 in the third embodiment of the display module proposed in this application. In this embodiment, the display module further includes: the side-locking component 7; The side lock assembly 7 is disposed on the side of the screen frame 4 of the display module; The edge locking assembly 7 is used to lock two adjacent display modules when the display module is spliced ​​with an adjacent display module.

[0074] It should be noted that the aforementioned side lock assembly 7 can be a locking structure used to mechanically lock two adjacent display modules at the splicing position. For example, it can be a quick locking device implemented by using a locking rod, locking hook, or eccentric locking mechanism. It typically includes a lock body, a locking rod, and an operating hole. Locking and unlocking can be achieved by rotating the locking rod with a special tool.

[0075] The side of the aforementioned screen frame 4 can refer to the left or right edge of the display module, specifically the vertical sidewall of the screen frame 4. This position is provided with mounting holes or locking grooves that cooperate with the edge locking assembly 7. The aforementioned locking refers to the operation of fixing two adjacent display modules in the horizontal direction. The edge locking assembly 7 pulls the screen frames 4 of the two display modules together and keeps them in a tight fit, achieving seamless splicing.

[0076] In its implementation, a side-locking assembly 7 is installed on the left or right side of the screen frame 4 of the aforementioned display module. The side-locking assembly 7 includes a lock body and a rotatable locking rod. The lock body is fixed inside the side of the screen frame 4, one end of the locking rod extends to the operation hole on the back of the screen frame 4, and the other end of the locking rod is equipped with a locking tongue or an eccentric cam structure. When a display module needs to be spliced ​​with an adjacent display module, the operator brings the sides of the screen frames 4 of the two display modules closer together, aligning and contacting the side edges of the two display modules. Then, the operator inserts a special locking tool into the operation hole on the back of the display module and rotates the locking tool in a predetermined direction, causing the locking tool to rotate the locking rod. During the rotation of the locking rod, the locking tongue or eccentric cam at the end of the locking rod gradually engages with the corresponding locking groove on the side of the screen frame 4 of the adjacent display module, and as the rotation angle increases, it pulls the adjacent display module towards this display module, ensuring a tight fit between the side edges of the two display modules. When the locking lever is rotated to a predetermined angle, the side locking assembly 7 locks the two display modules in a tight fit, achieving a secure connection between adjacent display modules.

[0077] To facilitate understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, at a stage setup site, workers need to horizontally splice three display modules into a large screen. First, workers bring the sides of the first and second display modules closer together, aligning the positioning pins 8 and positioning holes 9 to ensure the side edges are aligned. Next, workers take out an L-shaped locking wrench and insert the tip into the operating hole on the back of the first display module near the side. They then rotate the wrench clockwise according to the locking direction indicated next to the operating hole. The wrench rotates the locking rod of the side locking assembly 7, and the eccentric cam at the end of the locking rod gradually engages with the corresponding locking groove on the side of the second display module. As the rotation angle increases, the eccentric cam pulls the second display module towards the first display module until the side edges of the two display modules are tightly fitted without gaps. Workers repeat the above operation to lock the second and third display modules in the same way, completing the splicing and fixing of the entire screen. When disassembly is required, the operator inserts a wrench into the operating hole and rotates it counterclockwise to unlock the side lock component 7, allowing the adjacent display modules to be separated.

[0078] Furthermore, in order to achieve precise positioning in the horizontal and vertical directions, such as Figure 6 as well as Figure 7 As shown, Figure 6 This is a schematic diagram of the positioning post 8 in the third embodiment of the display module proposed in this application. Figure 7 This is a schematic diagram of the positioning hole 9 in the third embodiment of the display module proposed in this application. In this embodiment, the display module further includes: a positioning post 8 and a positioning hole 9; The positioning post 8 is disposed on the first side of the screen frame 4, and the positioning hole 9 is disposed on the opposite second side of the screen frame 4. The positioning post 8 is used to cooperate with the positioning hole 9 of the adjacent display module for positioning when the display module is spliced ​​with the adjacent display module.

[0079] It should be noted that the aforementioned positioning post 8 can be a positioning element protruding from the side of the screen frame 4, such as a cylindrical or conical protrusion structure formed by processing metal material. It is fixedly installed on the first side of the screen frame 4 and is used to cooperate with the positioning holes 9 of the adjacent display modules to achieve precise positioning during splicing.

[0080] The aforementioned positioning hole 9 can be a positioning hole 9 recessed into the side of the screen frame 4, such as a round hole or a conical hole that matches the shape of the positioning post 8. It is opened on the second side opposite to the screen frame 4 to accommodate the positioning post 8 of the adjacent display module.

[0081] The aforementioned first side can refer to either the left or right edge of the screen frame 4, and the aforementioned second side can refer to either the right or left edge of the screen frame 4. The first and second sides are arranged opposite to each other, allowing multiple display modules to cooperate with each other when horizontally spliced. The aforementioned positioning and cooperation can refer to the insertion and cooperation of the positioning post 8 and the positioning hole 9, so that adjacent display modules are precisely aligned in the horizontal and vertical directions, ensuring that the gap between the two display modules is uniform and the display surfaces are coplanar after splicing.

[0082] In its implementation, the screen frame 4 of the aforementioned display module has a positioning post 8 fixedly installed on its first side. The positioning post 8 protrudes outward in the horizontal direction, and its protrusion length and cross-sectional shape are determined according to the positioning accuracy requirements. The screen frame 4 of the aforementioned display module has a positioning hole 9 on its opposite second side. The opening direction of the positioning hole 9 is outward, and its inner diameter forms a clearance fit or transition fit with the outer diameter of the positioning post 8. When the display module needs to be spliced ​​with an adjacent display module, the operator brings the first side of the first display module and the second side of the second display module closer together, aligning the positioning post 8 of the first display module with the positioning hole 9 of the second display module axially. The operator pushes the two display modules closer together, and the positioning post 8 gradually enters the positioning hole 9. During the insertion of the positioning post 8 into the positioning hole 9, the outer wall of the positioning post 8 contacts the inner wall of the positioning hole 9, guiding the two display modules to gradually align in the horizontal and vertical directions. When the positioning pin 8 is fully inserted into the positioning hole 9, the side edges of the two display modules fit together, and the display surfaces of the two display modules are located in the same plane, completing the precise positioning before splicing.

[0083] To facilitate understanding, the following explanation uses examples, but does not limit the scope of this embodiment. For example, when constructing a large screen formed by horizontally splicing three display modules, the worker moves the first display module to a predetermined position and fixes it. Next, the worker moves the second display module to the right of the first display module, aligning the second side edge of the second display module's left side with the first side edge of the first display module's right side. The worker slowly pushes the second display module, aligning the positioning post 8 on the right side of the first display module with the positioning hole 9 on the left side of the second display module. As the second display module continues to move closer, the positioning post 8 gradually inserts into the positioning hole 9. Guided by the cooperation of the positioning post 8 and the positioning hole 9, the second display module automatically adjusts itself vertically and horizontally to align with the first display module. When the positioning post 8 is fully inserted into the positioning hole 9, the side edges of the two display modules fit tightly together, the splicing gap is uniform, and the display surfaces are flat and coplanar. The worker then operates the edge locking assembly 7 to lock and fix the two display modules, completing the splicing of the first and second display modules. Repeat the above process to complete the positioning and splicing of the third display module with the second display module.

[0084] To achieve the above objectives, this application also proposes a display device, which includes a plurality of display modules as described above.

[0085] It should be noted that the specific implementation of the display device provided in this embodiment can refer to the above embodiments, and this embodiment will not elaborate on them. Therefore, the effects achieved by the display device in this embodiment can also refer to the above embodiments, and this embodiment will not elaborate on them either.

[0086] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display module, characterized in that, The display module includes: a control module and a wireless transceiver module; The control module is connected to the wireless transceiver module or an external device, and the wireless transceiver module is wirelessly connected to the wireless transceiver module of another display module. The control module is used to transmit the video signal to be sent to the wireless transceiver module; The wireless transceiver module is used to transmit the video signal wirelessly; The wireless transceiver module is also used to receive the video signal and transmit the video signal to the control module; The display module further includes: a modulation and demodulation module; The modulation and demodulation module is connected between the control module and the wireless transceiver module; The modulation and demodulation module is used to perform ASK modulation on the video signal output by the control module, and output the ASK-modulated video signal to the wireless transceiver module. The modulation and demodulation module is further configured to receive the video signal from the wireless transceiver module, perform ASK demodulation on the received video signal, and output the ASK demodulated video signal to the control module.

2. The display module as described in claim 1, characterized in that, The wireless transceiver module includes: a wireless receiving unit and a wireless transmitting unit; The output terminal of the wireless receiving unit is connected to the input terminal of the control module, and the input terminal of the wireless transmitting unit is connected to the output terminal of the control module. The wireless receiving unit is used to transmit the received video signal to the wireless transmitting unit through the control module; The wireless transmitting unit is used to transmit the video signal to the wireless receiving unit of another display module.

3. The display module as described in claim 1, characterized in that, The display module also includes a screen frame, which includes an upper frame and a lower frame. The upper frame and the lower frame are connected by a hinge to allow the display module to switch between an unfolded state and a folded state.

4. The display module as described in claim 3, characterized in that, The display module also includes: a telescopic cable chain; The first end of the telescopic cable chain is connected to the upper frame, and the second end of the telescopic cable chain is connected to the lower frame. The telescopic cable chain is used to accommodate the cable connecting the upper frame and the lower frame.

5. The display module as described in claim 1, characterized in that, The display module also includes a lifting base, which includes: a base body, a lifting column, and a lifting control unit; The first end of the lifting column is fixedly connected to the base body, and the second end of the lifting column is fixedly connected to the screen frame of the display module. The lifting control unit is electrically connected to the lifting column and is used to control the lifting movement of the lifting column.

6. The display module as described in claim 5, characterized in that, The lifting base also includes: a slider and a column profile; The slider is fixedly connected to the screen frame of the display module, and the slider is slidably disposed in the groove of the column profile; The groove of the column profile is used to limit the displacement of the slider in the forward and backward and left and right directions during the lifting and lowering process.

7. The display module as described in claim 1, characterized in that, The display module also includes: a side lock assembly; The side lock assembly is disposed on the side of the screen frame of the display module; The edge locking assembly is used to lock two adjacent display modules when the display module is spliced ​​with an adjacent display module.

8. The display module as described in claim 7, characterized in that, The display module also includes: positioning posts and positioning holes; The positioning post is disposed on the first side of the screen frame, and the positioning hole is disposed on the opposite second side of the screen frame; The positioning post is used to cooperate with the positioning holes of the adjacent display module for positioning when the display module is spliced ​​with the adjacent display module.

9. A display device, characterized in that, The display device includes a plurality of display modules as described in any one of claims 1 to 8.

Images