Outdoor display screen self-adaptive adjusting support

Abstract

The present application relates to the field of display screen, discloses an outdoor display screen adaptive adjustment support, aiming at solving the technical problems of single display form, insufficient immersion experience, high energy consumption and low intelligence of the existing outdoor display screen. The display screen comprises an immersive viewing room, the core of which is a viewing room outer frame, the plane display screen and the curved display screen in the frame constitute an annular viewing space, the upper and lower side walls outside the frame are provided with elastic bending rods, the flexible permanent magnet rods on the rods are magnetically attracted to the inner permanent magnet blocks on the straight rods of the curved display screen; the telescopic motor drives the elastic bending rods to deform through the fixed rod transmission chain, the curvature of the curved display screen is adjusted synchronously by magnetic attraction linkage, and the viewing space is adapted by cooperating with the side telescopic door; the plane display screen is integrated with a magnetic sensitive detection layer and a partition driving circuit, and the invalid display area is dynamically closed to save energy; the device automatically switches between "advertisement mode" and "immersion mode" through infrared induction and the main controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display screens, in particular to an outdoor display screen self-adaptive adjusting support. BACKGROUND

[0002] As an important carrier of modern city information dissemination and advertising display, outdoor display screens have been widely used in commercial centers, squares, scenic spots and other public places. However, the traditional outdoor display screen adopts a fixed flat design, and the display form is single, which cannot dynamically adjust the form according to the viewing distance or scene requirements, resulting in inherent contradictions between long-distance advertising dissemination and close-range immersive experience. In the prior art, the display screen often presents the content in a static way, lacking self-adaptive ability, which not only limits the diversity of visual effects, but also is difficult to meet the growing demand of users for personalized interactive experience. In addition, the outdoor environment is complex and changeable, such as temperature fluctuation, ultraviolet radiation, etc., which puts higher requirements on the durability and stability of the display screen, but the traditional structure is insufficient in deformation reliability and outdoor resistance, and is prone to failure due to mechanical component aging or environmental factors.

[0003] Specifically, the existing outdoor display screen has significant shortcomings in energy efficiency control and intelligentization. Most devices adopt a full-screen constant-on working mode, and the invalid display area cannot be accurately turned off, causing energy waste, especially in high-brightness outdoor scenarios, the energy consumption problem is particularly prominent. At the same time, the existing display screen lacks intelligent sensing and automatic switching mechanism, relying on manual operation to adjust the display mode, with delayed response and cumbersome operation, making it difficult to achieve seamless connection between "wide-area advertising" and "immersive viewing". Structurally, semi-enclosed or fixed curved surface design attempts to improve the sense of immersion, but often has joint gaps or dead angles, cannot form a full-dimensional ring space, and mechanical transmission components are prone to friction wear, affecting the deformation precision and service life. These limitations not only reduce user experience, but also increase maintenance costs, restricting the further development of outdoor display technology.

[0004] With the advancement of digital media and smart city construction, the market has put forward higher standards for the intelligentization, energy saving and immersive experience of outdoor display screens. Users expect the display screen to automatically switch working modes according to the viewer's distance, achieving smooth transition from wide-area advertising to deep immersion, while considering energy optimization and structural reliability. However, the existing technology has not effectively integrated innovative elements such as magnetic attraction linkage, dynamic partition energy saving and infrared sensing, resulting in fragmented solutions. Therefore, there is an urgent need for an outdoor display screen integrated with a self-adaptive adjusting support to solve the above problems through integrated design, providing an efficient, reliable and user-friendly new path for the outdoor display industry. SUMMARY

[0005] The application discloses an outdoor display screen self-adaptive adjusting support, aims to solve the technical problems of single display form of the existing outdoor display screen, inability to dynamically adapt to the viewing distance, insufficient immersive experience, lack of full-dimension surrounding space, excessively high energy consumption, lack of precise energy-saving mechanism, poor structural deformation reliability and outdoor resistance, and low intelligent degree and dependence on manual switching, and realizes dynamic switching of "wide area advertisement display" and "three-dimensional immersive viewing" through innovative design of a magnetic attraction linkage deformation structure, full-dimension display combination, dynamic partition energy-saving circuit and intelligent scene response system, and gives consideration to outdoor adaptability, structural stability and energy saving, and the specific technical scheme is as follows.

[0006] The outdoor display screen of the application is designed in an integrated manner of "display carrier-deformation driving-magnetic attraction linkage-energy-saving control-intelligent response", and a dynamically adaptive outdoor display system is constructed, and the specific structure and working principle are as follows.

[0007] The core of the device is an immersive viewing room, which takes a viewing room outer frame as a basic framework, and the viewing room outer frame is integrally formed by using a high-strength lightweight alloy, has the characteristics of waterproofness, dustproofness and ultraviolet resistance, and is suitable for complex outdoor environments.

[0008] Heat dissipation fans are fixedly installed on the left and right side walls of the viewing room outer frame, and are used for discharging the working heat of the display screen and electronic elements in real time, so that the performance degradation caused by high temperature is avoided; a side telescopic door is embeddedly installed on the inner side wall of the viewing space entrance, and the side telescopic door is a multi-section flexible structure, can be horizontally telescoped along the inner wall of the entrance, realizes opening and closing and size adjustment of the entrance, and the two ends of the side telescopic door are fixed with connecting rods and synchronously move with the transmission structure, so that the sealing property and adaptability of the viewing space are ensured.

[0009] In order to realize dynamic adjustment of the curvature of the curved display screen, elastic bending rods are symmetrically arranged on the upper and lower side walls outside the viewing room outer frame, the elastic bending rods are non-metallic insulating elastic rubber rods, have self-resetting capability, can be uniformly bent under external force, and automatically restore the initial shape after the external force disappears.

[0010] The elastic bending rod is fixed at both ends, and the connecting rod is connected between the end rods. The connecting rod is fixed with a surface reinforcing plate to enhance the connecting strength and avoid breakage at the connecting part during deformation. The end rods are inserted with connecting pins at the end of the flexible permanent magnet rod. The lower end of the connecting pin is fixedly connected with a sliding block. The sliding block is embedded in the limiting groove on the upper and lower side walls of the viewing room outer frame. A limiting rod is arranged in the limiting groove. The limiting rod is fixed with limiting blocks at both ends to limit the stroke of the connecting sliding block and prevent the elastic bending rod from excessive deformation.

[0011] A plurality of straight rods are fixed on the surface of the curved display screen. The upper and lower ends of the straight rods are fixed with inner permanent magnets. The inner permanent magnets are vertically corresponding to the outer permanent magnets and attract each other, ensuring accurate transmission of magnetic attraction force. The inner permanent magnets are provided with balls on one side of the surface to reduce friction and make the deformation of the curved display screen more smooth. Through the magnetic attraction linkage of the outer permanent magnet and the inner permanent magnet, the deformation of the elastic bending rod can be transmitted to the curved display screen synchronously, ensuring that the curvature of the screen body is consistent with the deformation of the driving structure, and avoiding damage to the screen body caused by mechanical hard connection.

[0012] The deformation driving force is provided by a telescopic motor. The telescopic motor is fixed to the inner side wall of the viewing room outer frame, and the telescopic end thereof is fixed with a fixed rod three. The upper and lower ends of the fixed rod three are connected with a fixed rod two. The other end of the fixed rod two extends to the outside of the room and is connected with a fixed rod one. The fixed rod one is fixed with the elastic bending rod, forming a rigid transmission chain of "telescopic motor-fixed rod three-fixed rod two-fixed rod one-elastic bending rod". The fixed rod three is connected with a buffer rod between the inner side wall of the viewing room outer frame. The buffer rod is a hydraulic buffer structure, which can limit speed and reduce shock, ensuring the stable deformation of the curved display screen and avoiding impact damage.

[0013] The planar display screen is integrated with a magnetic sensitive detection layer and a partition driving circuit to realize dynamic adjustment and energy saving of the display area.

[0014] The magnetic sensitive detection layer is embedded in the planar display screen substrate. A Hall sensor array is uniformly arranged along the moving direction (horizontal direction) of the elastic bending rod. The sensor spacing is 1mm, which can accurately identify the real-time coordinates of the flexible permanent magnet rod (error ≤1 pixel). When the flexible permanent magnet rod moves, its magnetic field forms a "magnetic field peak area" on the corresponding sensor. The sensor transmits the signal to the main controller to determine the boundary position.

[0015] The partition driving circuit controls the pixels of the planar display screen in row and column matrix. The main controller sends instructions to the driving circuit according to the boundary coordinates transmitted by the magnetic sensitive detection layer, only activates the pixels on one side of the boundary (such as the side close to the viewing space), and closes the pixels on the other side. The driving circuit adopts "row / column gating" design, and the response time is 10-50ms, which can avoid picture delay or flicker and significantly reduce the energy consumption of the invalid area.

[0016] The device is integrated with an infrared induction sensor (arranged at the entrance of the viewing space) and a main controller to realize automatic mode switching.

[0017] Scene awareness: The infrared sensor detects the viewer's distance in real time. When the viewer is far away (> 3 meters), the main controller controls the device to be in "advertising mode"; when the viewer is close (≤ 3 meters) or is about to enter the viewing space, the "immersive mode" switching program is automatically started;

[0018] Coordinated control: When switching, the main controller synchronously coordinates the actions of the telescopic motor, the deformation of the curved display screen, the opening and closing of the side telescopic door, and the adjustment of the working area of the flat display screen, ensuring that each action is coherent and that no manual intervention is required during the switching process, with a response time of < 1 second;

[0019] Automatic reset: When the infrared sensor cannot detect the viewer, the main controller controls the device to switch back to "advertising mode" in reverse, achieving intelligent dynamic adaptation.

[0020] Advertising mode (long-distance display): The telescopic motor fully extends the telescopic end, the fixed rod three drives the fixed rod two and the fixed rod one to be in the extreme position away from the entrance of the viewing space, the elastic bending rod remains gently bent, the curved display screen has small curvature (approximately flat), and the maximum display area is suitable for wide-area advertising; the side telescopic door is retracted, the working area of the flat display screen is minimized, and the intermittent operation of the cooling fan reduces energy consumption;

[0021] Immersive mode (close-range viewing): The telescopic motor retracts the telescopic end, pulling the fixed rod three, the fixed rod two, and the fixed rod one to move, the elastic bending rod bends at the center, the two end rods move closer to each other, and the curved display screen forms a large-curvature ring through magnetic attraction linkage; the side telescopic door extends, narrowing the entrance of the viewing space; the working area of the flat display screen expands to full screen, forming a full-dimensional ring-shaped viewing space with the curved display screen; the cooling fan operates continuously to ensure stable operation of the screen.

[0022] Compared with the prior art, the present application provides an outdoor display screen self-adaptive adjustment support, which has the following advantages:

[0023] 1. Through the magnetic attraction linkage deformation structure and intelligent response, the "advertising mode" and "immersive mode" are automatically switched, the large display area is realized for wide-area advertising at a long distance, and the large-curvature ring screen provides an immersive experience at a close distance, solving the problem of poor single-form adaptability of traditional screens and meeting the needs of multiple scenes such as outdoor squares, business centers, and scenic spots;

[0024] 2. The curved display screen seamlessly connects with the upper and lower flat display screens, forming a ring-shaped viewing space without any gaps or dead angles, and the viewer is fully surrounded by the screen in all dimensions; the size of the viewing space is dynamically adjusted according to the opening and closing of the side telescopic door, accommodating 1-10 people to watch at the same time, and the immersive experience is improved compared with the traditional half-enclosed scheme;

[0025] 3. The dynamic partition driving circuit can close the invalid display area according to the scene, and the overall energy consumption is lower than that of the "full screen constant" scheme, which meets the energy saving demand of outdoor equipment.

[0026] In summary, the outdoor display screen of the present application considers wide-area propagation and deep immersion, energy saving and outdoor durability, intelligent response and convenient operation, and can be widely used in various outdoor scenes, providing an innovative solution for the outdoor display industry with dynamic adaptation, high efficiency, energy saving and deep immersion. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of an isometric structure of the present application;

[0028] Figure 2 is a schematic diagram of an observation room outer frame structure of the present application;

[0029] Figure 3 is a schematic diagram of a curved display screen mounting structure of the present application;

[0030] Figure 4 is a schematic diagram of an elastic bending rod mounting structure of the present application;

[0031] Figure 5 is a schematic diagram of a fixed rod mounting structure of the present application;

[0032] Figure 6 is a schematic diagram of an enlarged structure at A in the present application; Figure 5

[0033] Figure 7 is a schematic diagram of a side telescopic door mounting structure of the present application.

[0034] In the figure: 1, immersive viewing room; 2, side telescopic door; 3, immersive viewing space; 4, flat display screen; 5, observation room outer frame; 6, observation space entrance; 7, curved display screen; 8, elastic bending rod; 9, outer permanent magnet block; 10, straight rod; 11, inner permanent magnet block; 12, limit block; 13, limit rod; 14, flexible permanent magnet rod; 15, connecting rod; 16, reinforcing plate; 17, end rod; 18, connecting pin rod; 19, limit slot; 20, connecting sliding block; 21, fixed rod one; 22, fixed rod two; 23, buffer rod; 24, fixed rod three; 25, telescopic motor. DETAILED DESCRIPTION

[0035] ​The core target of the outdoor display screen self-adaptive adjusting support disclosed in the embodiment is to solve the technical problems of single display form of the existing outdoor display screen, inability to dynamically adjust the immersion effect according to the distance of the viewer, relatively high energy consumption and the like. Through the innovative design of the magnetic attraction linkage deformation structure, the partition driving energy-saving circuit and the multi-component collaborative adaptation mechanism, dynamic switching from outdoor wide-area advertising display to close-range three-dimensional immersive viewing is realized, while the structural stability, operation convenience and energy saving are taken into account. The following will be described in detail from the overall structure of the device, the details of each core component, the connection relationship, the working principle and the dynamic switching process.

[0036] As shown in Figures 1-7 The core carrier of the outdoor display screen is an immersive viewing room 1. The immersive viewing room 1 takes a viewing room outer frame 5 as a basic frame. The viewing room outer frame 5 is integrally formed by using a high-strength lightweight alloy material, which not only ensures the structural strength to support the weight of various display screens and transmission components, but also reduces the overall self-weight, facilitating outdoor installation and movement. An enclosed installation space is formed inside the viewing room outer frame 5. The top and bottom inner side walls of the viewing room outer frame 5 are fastened and installed with a flat display screen 4 by bolts. The flat display screen 4 is a high-definition flexible display screen specially used for outdoor, which has the characteristics of anti-ultraviolet, waterproof and dustproof, and high and low temperature resistance, and can adapt to complex outdoor environments. Curved display screens 7 are installed on the front and rear sides inside the viewing room outer frame 5. The curved display screens 7 are also flexible display screens specially used for outdoor, and their curvatures can be dynamically adjusted according to the use scene. The curved display screens 7 are seamlessly connected with the flat display screens 4 on the upper and lower sides, and together form a complete annular viewing space. After entering the viewing space from the viewing space entrance 6, the viewer can be wrapped by the annular picture formed by the display screens, and obtain an immersive viewing experience.

[0037] Heat dissipation fans are fixedly installed on the left and right side walls of the viewing room outer frame 5 by bolts. The air outlets of the heat dissipation fans face the inside of the viewing room outer frame 5, which is used to timely discharge the heat generated by the flat display screen 4, the curved display screen 7 and the internal electronic components during work, so as to avoid performance degradation or damage of the display screen due to high temperature, and ensure the continuous and stable operation of the device in the outdoor high-temperature environment. The viewing space entrance 6 is provided in the middle of one side wall of the viewing room outer frame 5. Side telescopic doors 2 are embedded and installed in the left and right inner walls of the viewing space entrance 6. The side telescopic doors 2 adopt a multi-section flexible telescopic structure, which can horizontally expand and contract along the inner wall of the viewing space entrance 6, realizing the opening and closing and size adjustment of the viewing space entrance 6. The material of the side telescopic doors 2 is consistent with that of the viewing room outer frame 5, and the surface is treated for anti-scratching and anti-corrosion.

[0038] In order to realize the dynamic deformation adjustment of the curved display screen 7, the upper and lower side walls outside the viewing room outer frame 5 are respectively provided with elastic bending rods 8, which are non-metallic insulating elastic rubber rods with self-resetting function, and have good bending deformation ability and elastic recovery force. When subjected to external force, the elastic bending rods 8 can bend with a predetermined curvature, and can automatically recover to the initial state after the external force disappears. The opposite side of the elastic bending rods 8 on the upper and lower sides is provided with a flexible permanent magnet rod 14 through bonding and bolt double fixing mode, the flexible permanent magnet rod 14 is made of flexible permanent magnetic material, and can bend synchronously with the deformation of the elastic bending rod 8, and a plurality of outer permanent magnets 9 are uniformly distributed on the surface of the flexible permanent magnet rod 14, the outer permanent magnets 9 are fixed on the outer surface of the flexible permanent magnet rod 14 by welding, the distance between adjacent outer permanent magnets 9 is equal, and the magnetic pole direction of all outer permanent magnets 9 is consistent.

[0039] The two ends of the elastic bending rod 8 are fixedly connected with end rods 17 through threaded connection, the end rods 17 are solid plastic parts, have a certain rigidity, and can avoid excessive deformation of the end of the elastic bending rod 8 under stress. The end of the flexible permanent magnet rod 14 and the end rod 17 are vertically inserted with a connecting pin rod 18, the connecting pin rod 18 is a cylindrical metal rod, the lower end of which is fixedly connected with a connecting sliding block 20 through threads, the connecting sliding block 20 is a cuboid structure, and the surface is treated to reduce sliding friction. The upper and lower side walls of the viewing room outer frame 5 near the viewing space entrance 6 are each provided with a long strip-shaped limiting groove 19, the length direction of the limiting groove 19 is consistent with the deformation direction of the elastic bending rod 8, the connecting sliding block 20 is embedded in the limiting groove 19 and can freely slide along the limiting groove 19, the movement direction of the end of the elastic bending rod 8 is limited, and deviation of the elastic bending rod 8 is avoided.

[0040] The connecting sliding blocks 20 on both sides of the limiting groove 19 are horizontally slidably inserted with limiting rods 13, the limiting rods 13 are cylindrical metal rods, the two ends of which are fixedly connected with limiting blocks 12 through bolts, the limiting blocks 12 are cuboid structures, and are fixed at both ends in the limiting groove 19 by welding, the limiting rod 13 and the connecting sliding block 20 are in sliding fit, which does not affect the movement of the connecting sliding block 20 along the limiting groove 19, and can limit the movement stroke of the connecting sliding block 20 through the limiting block 12, prevent the connecting sliding block 20 from falling off from the limiting groove 19, and ensure that the deformation range of the elastic bending rod 8 is within the safety range. The end rods 17 on the upper and lower sides of the viewing room outer frame 5 are fixedly connected with a connecting rod 15 through bolts, the connecting rod 15 is a solid plastic rod, is vertically arranged with the end rod 17, and forms a stable frame structure; the surfaces of the end rod 17 and the connecting rod 15 are fixedly provided with a reinforcing plate 16 through welding, the reinforcing plate 16 is a triangular solid plastic part, and its function is to enhance the connection strength of the end rod 17 and the connecting rod 15, avoid the fracture of the connecting part due to stress concentration when the end rod 17 drives the curved display screen 7 to move, and ensure the stability of the transmission process.

[0041] In order to realize the synchronous linkage of the elastic bending rod 8 and the curved display screen 7, the surface of the curved display screen 7 in the viewing room outer frame 5 is fixedly connected with a plurality of straight rods 10 through bonding. The straight rod 10 is a vertically arranged plastic rod, the length of which is consistent with the height of the curved display screen 7. The plurality of straight rods 10 are evenly distributed along the transverse direction of the curved display screen 7, and the spacing between adjacent straight rods 10 is equal to the spacing of the outer permanent magnet block 9. The upper and lower ends of the straight rod 10 are fixedly connected with the inner permanent magnet block 11 through bolts. The inner permanent magnet block 11 is a cuboid permanent magnet, and the magnetic pole direction thereof corresponds to the outer permanent magnet block 9, that is, when the outer permanent magnet block 9 is N-pole towards the side of the viewing room outer frame 5, the inner permanent magnet block 11 is S-pole towards the side of the flexible permanent magnet rod 14, so as to ensure that the stable opposite-pole attraction force is generated between the outer permanent magnet block 9 and the inner permanent magnet block 11. A plurality of balls are embedded on the side surfaces of the upper and lower inner permanent magnet blocks 11. The balls are made of high-strength wear-resistant ceramic material, which can reduce the frictional resistance between the inner permanent magnet block 11 and the inner wall of the viewing room outer frame 5 during movement, so that the deformation of the curved display screen 7 is more smooth. The plurality of inner permanent magnet blocks 11 and the outer permanent magnet blocks 9 correspond to each other in the vertical direction, so as to ensure that each outer permanent magnet block 9 can generate precise magnetic attraction force with the corresponding inner permanent magnet block 11, thereby driving the corresponding position of the curved display screen 7 to deform synchronously.

[0042] In order to provide the driving force for the deformation of the elastic bending rod 8, the central position of the elastic bending rod 8 on the upper and lower sides is fixedly connected with a fixed rod one 21 through bolts. The fixed rod one 21 is an insulating plastic rod, and the axis thereof is perpendicular to the length direction of the elastic bending rod 8, which is used for transmitting driving force to the center of the elastic bending rod 8. The side wall of the viewing room outer frame 5 is horizontally inserted with a fixed rod two 22 above and below, respectively. The fixed rod two 22 is an insulating plastic rod, one end of which extends to the outside of the viewing room outer frame 5 and is fixedly connected with the end of the fixed rod one 21 through threads, and the other end of which extends to the inside of the viewing room outer frame 5. One side of the curved display screen 7 in the viewing room outer frame 5 is provided with a fixed rod three 24. The fixed rod three 24 is a horizontally arranged insulating plastic rod, the length of which is consistent with the height of the viewing room outer frame 5. The upper and lower ends of the fixed rod three 24 are fixedly connected with the ends of the fixed rod two 22 on the upper and lower sides in the inside of the viewing room outer frame 5 through bolts, thereby forming a rigid transmission chain of "fixed rod one 21-fixed rod two 22-fixed rod three 24".

[0043] A buffer rod 23 is connected between the inner side wall of the viewing room outer frame 5 and the upper and lower sides of the third fixed rod 24 through a hinge. The buffer rod 23 is a telescopic hydraulic buffer rod with damping adjustment function, which provides support and buffering for the movement of the third fixed rod 24, avoids impact caused by the third fixed rod 24 moving too fast under the drive of the telescopic motor 25, limits the moving speed of the third fixed rod 24, ensures the stable and slow deformation of the curved display screen 7, and prevents the display screen from being damaged due to too fast deformation. A telescopic motor 25 is fixedly installed on the middle part of the inner side wall of the viewing room outer frame 5 through bolts. The telescopic motor 25 adopts a waterproof servo motor special for outdoor use. The telescopic end is fixedly connected with the center position of the third fixed rod 24 through a coupling. The telescopic motor 25 can accurately control the extension and retraction length of the telescopic end according to the control signal, and then drive the elastic bending rod 8 to realize precise deformation through a transmission chain.

[0044] The energy-saving function of the flat display screen 4 is realized by an integrated magnetic sensitive detection layer and a partition driving circuit. The magnetic sensitive detection layer is embedded in the substrate (flexible glass substrate) of the flat display screen 4 and uniformly arranged with a Hall sensor array along the moving direction (horizontal direction) of the elastic bending rod 8. The Hall sensor is sensitive to the magnetic field and can convert the sensed magnetic field strength into an electrical signal. The spacing between the sensors is set to 1 mm to ensure accurate identification of the boundary position of the flexible permanent magnet rod 14 with an error within 1 pixel. When the flexible permanent magnet rod 14 moves, the magnetic field generated thereby will produce the strongest signal on the corresponding Hall sensor, forming an obvious “magnetic field peak area”. The Hall sensor will transmit the electrical signal to the main controller of the device in real time, and the main controller can determine the real-time coordinates of the flexible permanent magnet rod 14 through signal analysis.

[0045] The partition driving circuit is integrated in the driving module of the flat display screen 4. The pixels of the flat display screen 4 are arranged in a row-column matrix. The partition driving circuit supports real-time partition control of the working state of the pixels according to the boundary coordinates transmitted by the main controller. For example, when the main controller determines that the real-time coordinates of the flexible permanent magnet rod 14 are x=a, it will send an instruction to the partition driving circuit to activate only the pixel driving circuit on the x

[0046] The flexible permanent magnet rod 14, the outer permanent magnet block 9 and the inner permanent magnet block 11 are all high-performance permanent magnets, which are stable in magnetism and will not have obvious demagnetization phenomenon in complex outdoor environment (temperature -20℃~60℃, humidity 0%~95%), ensuring the reliability and durability of the magnetic attraction transmission. The fixed rod one 21, the fixed rod two 22 and the fixed rod three 24 are all insulating plastic rods, the straight rod 10 is a vertical plastic rod, the end rod 17, the connecting rod 15, the reinforcing plate 16 and the side telescopic door 2 are solid plastic parts, the purpose of using insulating materials for these components is to avoid magnetic field interference and circuit short circuit, and at the same time, the plastic material has the advantages of light weight, corrosion resistance and low processing cost, further optimizing the overall performance of the device.

[0047] The working state of the outdoor display screen is divided into two kinds, which can be dynamically switched according to the distance between the viewer and the device, and the specific working process and component cooperation mode of the two states are as follows:

[0048] The first working state is the outdoor wide-area advertising display state, at this time the viewer is far away from the device and does not need immersive experience, and the device aims to maximize the advertising coverage. In this state, the telescopic end of the telescopic motor 25 is in the fully extended state, the fixed rod three 24 and the fixed rod two 22 drive the fixed rod one 21 to the extreme position away from the viewing space entrance 6, the elastic bending rod 8 maintains the initial gentle bending state under the action of its own elastic restoring force, at this time the end rods 17 at both ends of the elastic bending rod 8 are in a position away from each other, and the connecting slider 20 is located at the extreme position of the limiting groove 19. Due to the gentle bending of the elastic bending rod 8, the flexible permanent magnet rod 14 is also kept in a gentle bending state, the outer permanent magnet block 9 drives the inner permanent magnet block 11 and the straight rod 10 through magnetic attraction, so that the curved display screen 7 maintains a small curvature, which is similar to the display effect of a flat display screen. At this time, the curved display screen 7 has the maximum expansion area and can be used as an outdoor wide-area advertising screen to realize large-scale information dissemination. At the same time, the side telescopic door 2 is retracted into the embedded groove on both sides of the viewing space entrance 6, the viewing space entrance 6 is completely open, the working area of the flat display screen 4 is minimized, only the edge part of the pixels connected with the curved display screen 7 is activated, the invalid energy consumption is reduced, and the cooling fan operates intermittently according to the working temperature of the display screen, further reducing the energy consumption.

[0049] The second working state is a near-distance three-dimensional immersive viewing state. When the viewer gradually approaches the device and prepares to enter the viewing space entrance 6, the device detects the approach of the viewer through the infrared induction sensor (not marked, integrated at the viewing space entrance 6) and automatically starts the state switching program. The specific switching process is as follows:

[0050] Firstly, the infrared sensor transmits the detection signal to the main controller, and the main controller sends a command to start the telescopic motor 25. The telescopic end of the telescopic motor 25 begins to retract, pulling the fixed rod three 24 fixedly connected thereto to move towards the telescopic motor 25. When the fixed rod three 24 moves, the fixed rod two 22 connected to the upper and lower ends thereof moves synchronously towards the inside of the viewing room outer frame 5, and the end of the fixed rod two 22 away from the fixed rod three 24 drives the fixed rod one 21 to move, pulling the center of the elastic bending rod 8 to move away from the viewing space entrance 6. In this process, the buffer rod 23 is gradually compressed, limiting the moving speed of the fixed rod three 24 through its damping effect, ensuring a smooth movement process and avoiding impact.

[0051] After the center of the elastic bending rod 8 is pulled, the two ends thereof are constrained by the limiting groove 19 and the connecting slider 20, and can only move along the length direction of the limiting groove 19. Due to the pulling force of the center position, the end rods 17 at the two ends of the elastic bending rod 8 move close to each other, the connecting slider 20 slides along the limiting groove 19 to the middle, and the limiting rod 13 provides guidance and support in the sliding process of the connecting slider 20 to avoid deviation of the connecting slider 20. When the end rods 17 move close to each other, the connecting rod 15 connected between the end rods 17 moves synchronously, driving the side telescopic door 2 to extend from the embedded groove in the viewing space entrance 6, gradually reducing the width of the viewing space entrance 6, and finally forming an entrance size suitable for the immersive viewing space 3, preventing external environmental light and interference from entering the viewing space and improving the immersion. The reinforcing plate 16 continuously enhances the connection strength of the end rods 17 and the connecting rod 15 during the movement of the end rods 17 and the connecting rod 15, ensuring that the power can be stably transmitted to the side telescopic door 2 and the curved display screen 7.

[0052] The elastic bending rod 8 bends and deforms with a large curvature during the movement of the two ends thereof close to each other, driving the flexible permanent magnet rod 14 to bend synchronously, and the outer permanent magnet block 9 on the flexible permanent magnet rod 14 changes position with the bending of the flexible permanent magnet rod 14. Since the outer permanent magnet block 9 and the inner permanent magnet block 11 are of opposite poles and one-to-one corresponding, the position change of the outer permanent magnet block 9 drives the inner permanent magnet block 11 to move synchronously through magnetic attraction force, and the rolling balls on the surface of the inner permanent magnet block 11 reduce the friction resistance between the inner permanent magnet block 11 and the inner wall of the viewing room outer frame 5, making the movement smoother. The inner permanent magnet block 11 drives the straight rod 10 to move, and the straight rod 10 pulls the corresponding position of the curved display screen 7 to bend synchronously. Since the straight rods 10 are evenly distributed, the deformation of the curved display screen 7 is uniform and completely consistent with the deformation of the elastic bending rod 8, and finally forms a large-curvature annular curved surface, which together with the planar display screens 4 on the upper and lower sides forms a closed three-dimensional annular viewing space.

[0053] While the curved display screen 7 is deformed, the movement of the flexible permanent magnet rod 14 causes the change of its magnetic field position, and the Hall sensor array in the flat display screen 4 detects the change of the magnetic field in real time, and transmits the signal to the main controller. After analysis, the main controller determines the real-time boundary coordinates of the flexible permanent magnet rod 14, and then sends instructions to the partition driving circuit, dynamically expanding the working area of the flat display screen 4. With the bending of the elastic bending rod 8, the flexible permanent magnet rod 14 moves away from the viewing space entrance 6, and the working area of the flat display screen 4 gradually expands from the edge to the entire screen, finally realizing full-screen light emission, forming a seamless ring-shaped picture with the curved display screen 7. At this time, the cooling fan continues to run, timely discharging the heat generated when the display screen works at full power, ensuring the stable operation of the device.

[0054] After the viewer enters the viewing space entrance 6, he is completely wrapped in the ring-shaped display screen picture. The large curvature design of the curved display screen 7 and the upper and lower connection of the flat display screen 4 make the viewer's field of view fully covered by the picture, providing a strong three-dimensional immersive viewing experience. When the viewer leaves, the infrared sensor detects no personnel, and the main controller sends instructions to gradually extend the telescopic end of the telescopic motor 25, drive the fixed rod three 24, the fixed rod two 22 and the fixed rod one 21 to move reversely, and the elastic bending rod 8 gradually recovers to the initial flat state under the action of its own elastic restoring force. The curvature of the curved display screen 7 decreases, the side telescopic door 2 shrinks, and the working area of the flat display screen 4 shrinks. The device automatically switches back to the outdoor wide-area advertising display state, and the whole switching process does not need manual intervention, realizing intelligent dynamic adaptation.

[0055] During the long-term use of the device, the coordinated work of each component ensures the structural stability and functional reliability: the buffer rod 23 not only plays a role in speed limiting and buffering, but also provides shock absorption protection when the device is slightly shaken (such as outdoor strong wind, personnel collision), avoiding damage to the transmission components and display screen due to vibration; the reinforcing plate 16 effectively enhances the connection strength of the end rod 17 and the connecting rod 15, preventing fatigue fracture at the connection due to long-term repeated deformation; the continuous or intermittent operation of the cooling fan ensures the stable working temperature of the display screen and electronic components; the limit block 12 and the limit rod 13 limit the movement stroke of the connecting sliding block 20, avoiding damage caused by excessive deformation of the elastic bending rod 8; the flexible design of the flexible permanent magnet rod 14 and the elastic bending rod 8 ensures the integrity of the curved display screen 7 during deformation, avoiding creases or cracks on the display screen.

[0056] The installation and debugging process of the outdoor display screen is simple and convenient. When installed outdoors, only the viewing room outer frame 5 needs to be fixed on the preset installation base through expansion bolts, the power supply and control signal are connected, and the device can be started and run. During debugging, the extension stroke of the extension motor 25, the curvature parameters of the curved display screen 7, and the working area boundary of the flat display screen 4 are preset in two working states through the main controller to ensure smooth and accurate switching process. During routine maintenance, the dust and stains on the surface of the display screen are cleaned regularly, the operating state of the cooling fan, the magnetic strength of the permanent magnet, and the connection tightness of the transmission components are checked to ensure long-term stable operation of the device.

[0057] In summary, the outdoor display screen realizes seamless connection of two working states through the innovative magnetic attraction linkage deformation structure, partition driving energy-saving circuit and intelligent dynamic switching mechanism, which not only meets the needs of outdoor wide-area advertising display, but also provides high-quality three-dimensional immersive viewing experience for close-range viewers. At the same time, the material selection, structure design and collaborative work of each component ensure the outdoor adaptability, structural stability, operation convenience and energy saving of the device, which can be widely used in outdoor squares, business centers, tourist attractions and other places, and has significant practical value and promotion prospect.

[0058] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor display screen self-adaptive adjusting support, characterized in that: The utility model relates to an immersive theater (1), which comprises a theater frame (5), a flat display screen (4) and a curved display screen (7) are arranged in the top and bottom of the theater frame (5), the curved display screen (7) and the flat display screen (4) form a ring-shaped viewing space, the theater frame (5) is provided with a viewing space entrance (6) and a side telescopic door (2), and heat dissipation fans are arranged on the left and right side walls. Elastic bending rods (8) are arranged on the upper and lower side walls outside the theater frame (5), flexible permanent magnetic rods (14) are arranged on the opposite surfaces of the elastic bending rods (8), the flexible permanent magnetic rods (14) are provided with outer permanent magnetic blocks (9), end rods (17) are arranged at the two ends of the elastic bending rods (8), connecting rods (15) and reinforcing plates (16) are connected between the end rods (17), the end rods (17) and the flexible permanent magnetic rods (14) are connected through plug-in connecting pins (18), the connecting pins (18) are connected with connecting sliding blocks (20), the theater frame (5) is provided with limiting grooves (19), limiting rods (13) and limiting blocks (12). The curved display screen (7) is connected with a straight rod (10), the straight rod (10) is connected with an inner permanent magnetic block (11), the inner permanent magnetic block (11) and the outer permanent magnetic block (9) are magnetically attracted correspondingly, the elastic bending rods (8) are connected with a fixed rod one (21), the fixed rod two (22) is inserted into the theater frame (5), a fixed rod three (24) and a buffer rod (23) are arranged in the theater frame (5), and a telescopic motor (25) is arranged in the theater frame (5). The flat display screen (4) is integrated with a magnetic sensitive detection layer and a partition driving circuit. The elastic bending rods (8) are non-metallic insulating elastic rubber rods, have self-resetting capability, can be uniformly bent in the horizontal direction of the theater frame (5) under the action of external force, and can restore to the initial flat state after the external force disappears, the bending curvature range of the elastic bending rods (8) is matched with the deformable curvature range of the curved display screen (7), and damage of the curved display screen (7) caused by excessive bending is avoided.

2. The self-adaptive adjusting support for outdoor display screen according to claim 1, characterized in that: The outer permanent magnetic blocks (9) are uniformly distributed on the peripheral surface of the flexible permanent magnetic rod (14), the adjacent outer permanent magnetic blocks (9) have equal spacing, and the magnetic pole directions of all the outer permanent magnetic blocks (9) on the side of the theater frame (5) are consistent; the inner permanent magnetic block (11) is fixed on the upper and lower ends of the straight rod (10) and corresponds to the outer permanent magnetic block (9) in the vertical direction, the magnetic pole on the side of the flexible permanent magnetic rod (14) of the inner permanent magnetic block (11) is of opposite polarity and is attracted to the outer permanent magnetic block (9), a plurality of balls are embedded in the surface of the inner permanent magnetic block (11) on the side away from the outer permanent magnetic block (9), the balls are made of wear-resistant ceramic material, and the sliding friction between the inner permanent magnetic block (11) and the inner wall of the theater frame (5) is reduced.

3. The self-adjusting support for outdoor display screen according to claim 2, characterized in that: The fixed rod one (21) is fixed at the center position of the elastic bending rod (8), the fixed rod two (22) is horizontally inserted into the side wall of the theater frame (5), one end of the fixed rod two (22) extends to the outside of the room and is fixed with the end of the fixed rod one (21), and the other end of the fixed rod two (22) extends to the inside of the room and is fixed with the end of the fixed rod three (24); the fixed rod three (24) is vertically arranged, the center of the fixed rod three (24) is fixed with the telescopic end of the telescopic motor (25), the buffer rod (23) is hingedly connected with the inner side wall of the theater frame (5) and the upper and lower sides of the fixed rod three (24) at the two ends of the buffer rod (23), and the buffer rod (23) is a hydraulic buffer rod and has the functions of damping speed limiting and shock absorption.

4. The self-adjusting support for outdoor display screen according to claim 3, wherein: ​ 5. The self-adjusting support for outdoor display screen according to claim 4, wherein: The side telescopic door (2) is a multi-section flexible telescopic structure, which is embedded and installed on the inner walls of the left and right sides of the viewing space entrance (6). The side telescopic door (2) is fixed at the opposite end of the connecting rod (15) on both sides, and can be adjusted in size by moving the connecting rod (15). The material of the side telescopic door (2) is consistent with that of the viewing room outer frame (5), and the surface is treated with anti-scratching and anti-corrosion.

6. The self-adjusting support for outdoor display screen according to claim 5, wherein: The magnetic sensitive detection layer is embedded in the flexible glass substrate of the flat panel display (4). The Hall sensor array is uniformly arranged along the moving direction of the elastic bending rod (8). The distance between the Hall sensors is 1mm. The magnetic field strength can be converted into an electrical signal and transmitted to the main controller for identifying the real-time boundary coordinates of the flexible permanent magnet rod (14). The coordinate recognition error is less than or equal to 1 pixel.

7. The self-adjusting support for outdoor display screens according to claim 6, characterized in that: The partition driving circuit is integrated in the driving module of the flat panel display (4), which can control the working state of the pixels in row and column matrix. The main controller sends instructions to the partition driving circuit according to the boundary coordinates transmitted by the magnetic sensitive detection layer, and only activates the pixels on the side close to the viewing space, while the pixels on the other side are turned off. The partition driving circuit adopts "row / column gating" design, and the response time is 10-50ms, which can avoid picture delay or flicker.

8. The self-adjusting support for outdoor display screen according to claim 7, characterized in that: The cooling fan is fixed on the left and right side walls of the viewing room outer frame (5) by bolts, and the air outlet is directed towards the inside of the viewing room outer frame (5). The cooling fan can realize intermittent or continuous operation according to the working temperature of the flat panel display (4) and the curved display (7). The cooling fan is an outdoor waterproof type, which can work stably in an environment of-20℃ to 60℃.

9. The self-adjusting support for outdoor display screens according to claim 8, characterized in that: The limiting rod (13) is horizontally arranged in the connecting slider (20) of the limiting groove (19), and the limiting block (12) is fixed at both ends of the limiting groove (19). The limiting rod (13) is in sliding cooperation with the connecting slider (20), and the limiting block (12) can limit the movement stroke of the connecting slider (20) to avoid excessive deformation of the elastic bending rod (8). The surface of the connecting slider (20) is treated with smoothness to reduce the friction resistance of the limiting groove (19) and the limiting rod (13).

10. The self-adjusting support for outdoor display screens according to claim 9, characterized in that: It also includes an infrared induction sensor and a main controller integrated at the viewing space entrance (6). The infrared induction sensor can detect the distance between the viewer and the device, and the main controller can control the action of the telescopic motor (25) according to the detection signal to realize automatic switching between "advertisement mode" and "immersion mode". In "advertisement mode", the telescopic motor (25) is extended, the curvature of the curved display (7) is small, and the working area of the flat panel display (4) is small. In "immersion mode", the telescopic motor (25) is retracted, the curvature of the curved display (7) is increased, and the working area of the flat panel display (4) is expanded to full screen.

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