Suspension display device

Abstract

The utility model discloses suspension display equipment which comprises an air bag, a supporting framework and a projection assembly, and the interior of the air bag is used for being filled with gas to suspend in the air; the supporting framework is connected to the periphery of the air bag and used for maintaining the shape of the air bag, and the supporting framework is foldable or telescopic; the projection assembly is connected to the supporting framework and used for projecting an image to the air bag. The position can be flexibly moved and adjusted, and the dynamic scene display requirement is met. Meanwhile, the supporting framework is foldable or telescopic, and when the equipment needs to be stored or transported, the supporting framework is folded or contracted, so that the overall size of the supporting framework is reduced, and storage and transportation are facilitated.

Description

Technical Field

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

[0002] In related technologies, display devices such as LED screens and traditional projection devices rely on fixed carriers for installation or placement. Adjusting their position requires disassembly and reassembly or is limited by projection conditions, lacking spatial layout flexibility. Another type of display device, such as head-mounted AR devices and fixed stereoscopic projectors, can achieve multi-angle visual effects, but its flexibility is low and it cannot meet the dynamic viewing needs in open scenes.

[0003] Meanwhile, existing display devices are bulky and inconvenient to carry and transport. Therefore, it is essential to provide a display device that combines flexible mobile display functionality with ease of carrying and transportation. Utility Model Content

[0004] This application provides a floating display device that can be flexibly moved and adjusted to meet the needs of dynamic display scenarios, while also being convenient for storage and transportation.

[0005] To achieve the above objectives, embodiments of this application provide a floating display device, comprising:

[0006] An airbag, filled with gas to levitate in the air;

[0007] A support frame, connected to the outer periphery of the airbag, is used to maintain the shape of the airbag; the support frame is foldable or retractable.

[0008] A projection component, connected to the support frame, is used to project images onto the airbag.

[0009] In some embodiments, the support frame includes a plurality of interconnected support rods, at least some of which are foldable.

[0010] In some embodiments, the support rod includes two sub-rods and a hinge, the two sub-rods being hinged together by the hinge.

[0011] In some embodiments, the support frame includes a plurality of interconnected support rods, at least some of which are telescopic.

[0012] In some embodiments, the support frame further includes a connecting seat, to which one end of the plurality of support rods is connected.

[0013] In some embodiments, the levitating display device further includes a thrust mechanism connected to the support frame for providing thrust to the airbag.

[0014] In some embodiments, the thrust mechanism includes:

[0015] The driving element is connected to the connecting base; and

[0016] A propeller, driven by the drive member, is configured to rotate under the drive member to provide thrust. In some embodiments, the projection assembly includes:

[0017] A bracket, connected to the supporting frame; and

[0018] The projection body, connected to the bracket, is used to project images onto the airbag.

[0019] In some embodiments, the levitation display device further includes a counterweight movably connected to the support frame for adjusting the center of gravity of the airbag.

[0020] In some embodiments, the levitating display device further includes a control component disposed on the counterweight for controlling the projection component.

[0021] The suspended display device provided in this application uses an airbag as the display structure. The projection component projects images onto the airbag wall. Since the airbag is in a suspended state, its suspension position can be changed by adjusting the amount of gas inside the airbag, coordinating with auxiliary propulsion structures (such as propellers or micro fans), or manually pushing it, thereby achieving dynamic adjustment of the displayed image. Compared to traditional fixed display devices, it does not rely on a fixed display screen and support structure, enabling flexible movement of the displayed image and meeting the needs of dynamic display scenarios.

[0022] Meanwhile, the support frame can be folded or retracted. When the equipment needs to be stored or transported, the support frame can be folded or retracted to reduce the overall volume of the support frame, making it convenient for storage and transportation. Attached Figure Description

[0023] 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, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a floating display device in one embodiment of this application from a certain perspective;

[0025] Figure 2This is a schematic diagram of the structure of the floating display device in one embodiment of this application from another perspective;

[0026] Figure 3 This is a schematic diagram of the projection component from a certain perspective in one embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the projection component from another perspective in one embodiment of this application;

[0028] Figure 5 This is a schematic diagram of two projection methods for the floating display device of this application;

[0029] Figure 6 This is a schematic diagram of the airbag structure in one embodiment of this application;

[0030] Figure 7 This is a schematic diagram of one display method of the floating display device of this application;

[0031] Figure 8 This is a partial structural diagram of the support rod in one embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the structure of a floating display device in a folded state according to an embodiment of this application;

[0033] Figure 10 This is a schematic diagram of the structure of the floating display device in another folded state according to one embodiment of this application;

[0034] Figure 11 This is a schematic diagram of the thrust mechanism and connecting seat in one embodiment of this application;

[0035] Figure 12 This is a schematic diagram of the structure of the floating display device in the charging state according to an embodiment of this application;

[0036] Figure 13 This is a schematic diagram of the structure of the floating display device in a charging state according to another embodiment of this application;

[0037] Figure 14 This is a schematic diagram of the structure of the floating display device in the charging state in another embodiment of this application.

[0038] Explanation of icon numbers:

[0039] 1. Airbag; 11. Inner layer airbag; 12. Outer layer airbag; 2. Projection assembly; 21. Support; 22. Projection body; 3. Support frame; 31. Support rod; 311. Sub-rod; 312. Hinge; 32. Connecting seat; 4. Thrust mechanism; 41. Power propeller; 42. Drive component; 5. Counterweight; 6. Control assembly; 7. Power supply assembly; 71. Power supply; 72. Power conversion component; 8. Charging dock; 9. Base station.

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0042] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0046] Please see Figure 1 and Figure 2 This application provides a floating display device, which includes an airbag 1, a projection component 2, and a support frame 3.

[0047] Specifically, the airbag 1 provides buoyancy or lift by filling it with gas, allowing it to suspend in the air. The airbag 1 can be filled with a gas with a density less than or similar to air, such as pure gases like helium, hydrogen, or neon; it can also be filled with a mixture of helium and air, or a mixture of neon and nitrogen. The buoyancy is controlled by adjusting the proportions of the mixed gas to accommodate suspending display devices of different weights or different suspension height requirements. Inflation and deflation of the airbag 1 can be accomplished using an air pump, which can be mounted on the airbag 1 or used as an external component. During inflation, the air pump injects gas into the airbag 1, causing it to expand to a preset volume. During deflation, the air pump extracts some gas, facilitating the storage of the device or adjusting its suspension height. This embodiment uses the airbag 1 as the display structure, avoiding the problem of traditional fixed display devices being immobile, thus structurally achieving the mobility of the display device.

[0048] The inflated airbag 1 can take the shape of a hexahedron, sphere, or polyhedron, depending on the application scenario. For example, a hexahedron is suitable for indoor displays in small spaces, while a sphere is suitable for outdoor 360° panoramic displays. In this embodiment, a hexahedron shape is used. After inflation, the walls of the airbag 1 bulge slightly, ensuring the flatness of the walls to meet projection requirements while also enhancing the pressure resistance and stability of the airbag 1 through the bulging structure. Simultaneously, all six faces of the hexahedron airbag 1 serve as projection surfaces, thereby enabling the transmission of information from multiple perspectives and directions.

[0049] In this embodiment, the projection component 2 is connected to the support frame 3 and is used to project images onto the wall of the airbag 1 to form a display screen. The number of projection components 2 can be set according to the projection surface requirements. For example, to achieve simultaneous projection on all six faces of a hexahedron, this embodiment sets six projection components 2, each corresponding to one face. The projection components 2 are connected to the outside of the airbag 1 through the support frame 3, and the connection position can be adjusted according to the projection angle so that the projected light can cover the corresponding projection surface. The projection components 2 can be miniature projectors to reduce the overall weight of the floating display device.

[0050] In this embodiment of the suspended display device, after the airbag 1 is suspended to a preset position, the projection component 2, upon receiving the transmitted image signal, projects the image onto the corresponding wall of the airbag 1. Since the airbag 1 is in a suspended state, its suspension position can be changed by adjusting the amount of gas inside, using auxiliary propulsion structures (such as propellers or micro-fans), or manual pushing, thereby achieving dynamic adjustment of the displayed image. For example, in commercial displays, the suspended display device can adjust its position according to the distribution of the crowd to ensure clear viewing for more viewers. Compared to traditional fixed display devices, it does not rely on a fixed display screen and support structure, enabling flexible movement of the displayed image and meeting the needs of dynamic display scenarios.

[0051] Please see Figure 2 , Figure 8 , Figure 9 and Figure 10 The support frame 3 is connected to the outer periphery of the airbag 1 to maintain the shape of the airbag 1. The support frame 3 is foldable or retractable to solve the problem of inconvenient storage of the support frame 3 and improve the portability of the device.

[0052] In some embodiments, the support frame 3 includes a plurality of interconnected support rods 31, and at least some of the support rods 31 are foldable or retractable.

[0053] For example, the support rod 31 can be connected by a hinge to make the support rod 31 foldable; the telescopic support rod 31 can adopt a multi-section nested structure, such as using two or three sections of pipe nested together, with elastic protrusions set on the side wall of each section of pipe. The length is fixed by the engagement of the protrusions with the corresponding slots. The length can be adjusted by pressing the protrusions when stretched or compressed, thus making the support rod 31 telescopic.

[0054] When the equipment needs to be stored or transported, the support rod 31 can be folded or retracted to reduce the overall volume of the support frame 3, making it easier to pack into a storage box or transport bag. At the same time, the adjustability of the support rod 31 also allows the support frame 3 to adapt to airbags 1 of different sizes. By simply adjusting the length or folding angle of the support rod 31, airbags 1 of different sizes can be supported, enhancing the versatility of the equipment.

[0055] In some embodiments, such as Figure 8 As shown, the support rod 31 includes two sub-rods 311 and a hinge 312. The two sub-rods 311 are hinged together by the hinge 312 to achieve folding and angle adjustment.

[0056] The hinge 312 can be a hinge-type hinge structure or a universal hinge structure. Two sub-rods 311 are extended to a preset angle via the hinge 312 (e.g., to 180° when forming the edges of a hexahedral frame). Multiple support rods 31 are interconnected to form a complete support frame 3; Figure 9 and Figure 10 As shown, during storage, the two sub-rods 311 move closer together and rotate to fit, reducing the length of the support rod 31 and thus reducing the volume of the entire support frame 3. Compared to the one-piece molded support rod 31, the hinged structure allows for segmented folding of the support rod 31, further reducing the storage volume. At the same time, the hinged support rod 31 can adjust its support angle according to the actual shape of the airbag 1, ensuring the fit between the support frame 3 and the airbag 1. This avoids deformation of the airbag 1 due to uneven local stress caused by angular deviation of the support frame 3, thus improving the overall stability of the airbag 1.

[0057] In some embodiments, such as Figure 9 As shown, the support frame 3 also includes a connecting seat 32, to which one end of a plurality of support rods 31 is connected. In this embodiment, the connecting seat 32 is used to fix and position the support rods 31, thereby improving the overall stability and ease of assembly of the support frame 3.

[0058] The connecting seat 32 can be made of lightweight plastic or aluminum alloy, and its shape can be designed according to the number of support rods 31. For example, to support the skeleton of the hexahedral airbag 1, the connecting seat 32 can be designed as a triangular block structure. Multiple connecting holes are provided on the periphery of the connecting seat 32 for the support rods 31 to pass through. In some embodiments, the inner wall of the connecting hole is provided with internal threads, and one end of the support rod 31 is provided with external threads. The support rod 31 and the connecting seat 32 are fixed by threaded connection, which improves the connection stability.

[0059] In this embodiment, multiple support rods 31 are centrally positioned and connected by a connecting seat 32. The connecting seat 32 serves as the force center point, which concentrates and transmits the force of the multiple support rods 31, avoiding excessive local force that could damage the support rods 31 and improving the overall rigidity of the support frame 3.

[0060] Please see Figures 2 to 5 In some embodiments, the projection component 2 is connected to the outside of the airbag 1, and the projection angle of the projection component 2 is adjustable, used not only to project images onto the airbag 1, but also... Figure 5 In scenario (b), it is also used to project images onto external objects (such as walls, ceilings, etc.), such as Figure 5 The application scenarios in scenario (a) are further expanded.

[0061] Specifically, in the first embodiment, the levitating display device further includes a support frame 3 for maintaining the shape of the airbag 1. The support frame 3 is connected to the outer periphery of the airbag 1 and can be a frame structure made of lightweight carbon fiber, characterized by its light weight and high strength. It not only supports the airbag 1, preventing deformation of the airbag 1 after inflation due to external forces from affecting the display effect, but also reduces the overall weight of the device. The structure of the support frame 3 can be designed according to the shape of the airbag 1. For example, if the airbag 1 is hexahedral, the support frame 3 is correspondingly set as a hexahedral frame, with each side of the frame fitting against the edge of the airbag 1. It can be connected to the outer periphery of the airbag 1 by snap-fit ​​or adhesive.

[0062] The projection assembly 2 includes a bracket 21 and a projection body 22. The bracket 21 is connected to the support frame 3. For example, one end of the bracket 21 is connected to the support frame 3 by bolts or welding, and the other end is rotatably connected to the projection body 22 via a rotating shaft. The projection body 22 can rotate around the rotating shaft to adjust the projection angle. The projection body 22 can integrate a light source, an imaging chip, a lens, etc. The rotation of the projection body 22 can be achieved by electronic control or manual drive.

[0063] In the second embodiment, the levitating display device also includes a support frame 3 for maintaining the shape of the airbag 1, and the design of the support frame 3 is similar to that in the above embodiments. Unlike the above embodiments, in this embodiment, the angle adjustment function of the projection component 2 is achieved by rotating the bracket 21, rather than rotating the projection body 22.

[0064] Specifically, the projection assembly 2 includes a bracket 21 and a projection body 22, with the projection body 22 connected to the bracket 21. The bracket 21 is rotatably connected to the support frame 3, which can be a hinge connection or a rotary joint structure. The projection body 22 is connected to the other end of the bracket 21 by bolts or clips. When the bracket 21 rotates around the support frame 3, the projection body 22 rotates synchronously with the bracket 21, thereby adjusting the projection angle.

[0065] In the third embodiment, the projection assembly 2 integrates an angle adjustment mechanism, which includes a motor and a rotating shaft. One end of the rotating shaft is connected to the motor, and the other end is connected to the lens module or the overall housing of the projection assembly 2. The motor drives the rotating shaft to rotate, thereby rotating the lens module or the overall housing and adjusting the projection angle. Alternatively, the angle adjustment can also employ a manual knob structure, where manually rotating the knob drives the internal gear transmission to adjust the projection angle.

[0066] As can be seen from the above three embodiments, the adjustable angle design of the projection component 2 not only allows it to project images onto the airbag 1, but also allows it to use external objects as larger imaging carriers, thus improving the display effect. At the same time, the adjustable angle function allows the display device to adapt to external objects of different positions and sizes, and the projection target can be adjusted without moving the entire display device, further improving the ease of use.

[0067] Please see Figure 6 In some embodiments, the airbag 1 includes an inner layer 11 and an outer layer 12. In this embodiment, the airbag 1 has a double-layer structure, and the lift is controlled by using the double-layer structure with gases of different densities.

[0068] Specifically, the inner bladder 11 is filled with a first gas with a density less than air. This first gas can be a pure gas such as helium or neon. The outer bladder 12 covers the outer periphery of the inner bladder 11 and maintains a preset distance from it, such as 5-15 cm, which can be adjusted according to the bladder size. The annular space between the outer bladder 12 and the inner bladder 11 is filled with a second gas with a density greater than the first gas. This second gas can be air, nitrogen, or a mixture of air and nitrogen. By adjusting the amount of the second gas, the average density of the entire bladder 1 can be changed, thereby adjusting the lift provided by the first gas.

[0069] Compared to a single-layer airbag 1, which can only adjust lift by a single gas volume, the double-layer airbag 1 in this embodiment adjusts lift by combining the density difference of the two gases with the filling volume. At the same time, the double-layer structure also enhances the airbag 1's anti-interference ability. The outer layer 12 can block external airflow from directly impacting the inner layer 11, reducing lift instability caused by airflow disturbance, thereby improving the suspension stability of the airbag 1.

[0070] In some embodiments, the projection component 2 is disposed at least at one of the following locations: outside the outer capsule 12, between the outer capsule 12 and the inner capsule 11, and inside the inner capsule 11.

[0071] In this embodiment, the projection components 2 at different positions can work collaboratively or operate independently. When only imaging of the outer capsule 12 is required, the projection component 2 on the outside of the outer capsule 12 works alone, projecting an image onto the outer capsule 12. When imaging of both the inner and outer capsules is required simultaneously, the projection component 2 between the inner and outer capsules can project images onto the capsules on both sides respectively, or the projection components 2 on the outside of the outer capsule 12 and the inside of the inner capsule 11 can project images onto their respective capsules. The multi-position setting of the projection components 2 in this embodiment allows for flexible selection of the projection position according to imaging requirements, improving the scene adaptability of the device. At the same time, the projection component 2 between the inner and outer capsules can reduce the interference of external ambient light on the projected light, improving the image clarity.

[0072] In some embodiments, the inner capsule 11 and the outer capsule 12 have different light transmittance. This embodiment utilizes the difference in light transmittance between the two capsules, in conjunction with the projection component 2, to separate and image different parts of the image, achieving a dual-layer image or three-dimensional effect and enhancing the visual depth. For example, as... Figure 7 As shown, the projection component 2 is disposed inside the inner capsule 11, which is made of a high-transmittance film, while the outer capsule 12 is made of a low-transmittance film. The projection component 2 uses a graphics processor to segment the image to be output into a person part (or foreground part) and a background part, and then modulates the light intensity and wavelength of the two parts of the image differently, so that the image of the person part can more easily pass through the inner capsule 11 and finally be imaged on the surface of the outer capsule 12; while the image of the background part is more easily reflected or absorbed by the surface of the inner capsule 11 and imaged.

[0073] In this embodiment, the projection component 2 synchronously projects the modulated image signals of the person and the background. After the person signal penetrates the inner capsule 11, the light converges and forms an image on the surface of the outer capsule 12 due to its lower light transmittance. The background signal, on the other hand, forms an image on the surface of the inner capsule 11. Because of the gap between the inner and outer capsules, the two images form a spatial layer, allowing the human eye to clearly distinguish between the foreground person and the background, thus achieving a dual-layer display effect that highlights the person. Compared to single-layer imaging, the combination of light transmittance difference and image modulation enables dual-layer or three-dimensional imaging, improving the display effect. At the same time, layered imaging makes the image more layered, which is especially suitable for advertising displays, stage performances, and other scenarios that require highlighting core content, thus enhancing visual appeal.

[0074] In some embodiments, the projection component 2 is disposed on the outer side of the outer capsule 12 and / or the inner side of the inner capsule 11.

[0075] Please see Figure 2 In some embodiments, the levitation display device further includes a counterweight 5, which is movably connected to the support frame 3. The counterweight 5 is used to adjust its own position to regulate the center of gravity of the device, ensuring stable posture when the device is levitating. For example, a slide rail or groove is provided on the support rod 31 of the support frame 3. The counterweight 5 slides along the slide rail via a slider, and a locking bolt is provided on the slider. When the counterweight 5 slides to a preset position, the locking bolt can be tightened to fix it. Alternatively, Velcro or snap-fit ​​connections can be used to achieve position switching.

[0076] Compared to designs without counterweight 5, which rely solely on the symmetry of the airbag 1 to maintain the center of gravity, this embodiment sets up an active counterweight 5, which can solve the problem of center of gravity shift caused by uneven component layout (such as the concentrated placement of projection components 2), avoid tilting or flipping when the device is suspended, and improve the suspension stability of the device.

[0077] In some embodiments, the floating display device further includes a control component 6, which is mounted on the counterweight 5 and is used to control the operation of the projection component 2 and process various types of device information. Exemplarily, the control component 6 can adopt a modular design, integrating a central processing unit, a graphics processor, an audio processor, a speaker, a wireless network module, an external data interface, and a sensing module. The sensing module includes various sensors: posture sensors (such as GPS modules, gyroscopes, and accelerometers to detect height, speed, and position), interaction sensors (such as touch sensors, microphones, and light sensors to receive touch, sound, and light information), and hardware status sensors (such as temperature sensors, current sensors, and voltage sensors to monitor the internal temperature and power supply status of the device). After integrating the above modules via a circuit board, the control component 6 is mounted in a reserved mounting slot in the counterweight 5 and electrically connected to components such as the projection component 2 and the thrust mechanism 4 via wires to achieve signal transmission.

[0078] In this embodiment, the counterweight 5 itself has weight stability, which can reduce the impact of vibration on the control component 6 when the equipment is suspended, and ensure the stable operation of electronic components.

[0079] In some embodiments, such as Figure 11 As shown, the floating display device also includes a thrust mechanism 4, which is set on the support frame 3 to provide thrust, change the attitude, position, speed and acceleration of the device, and achieve flexible movement.

[0080] Specifically, the thrust mechanism 4 includes a propeller 41 and a drive unit 42. The propeller 41 can be a propeller, and the drive unit 42 can be a micro motor. The drive unit 42 and the propeller 41 are connected by a coupling. The number and position of the thrust mechanism 4 are determined according to the support frame 3. For example, a set is set on the support rod 31 on one of the four sides or the bottom surface of the hexahedral support frame 3, and a set has four propellers 41. The thrust mechanism 4 is connected to the support rod 31 through a connecting seat 32. In addition, the drive unit 42 is also connected to a speed control module, which can realize the speed change of the propeller 41 by adjusting the motor speed, and also supports forward and reverse rotation control of the motor, so that the propeller 41 can generate forward and reverse thrust.

[0081] Please see Figure 4 and Figure 12 In some embodiments, the floating display device further includes a power supply component 7, which includes a power supply 71 and an energy conversion component 72. In this embodiment, the energy of the energy conversion component 72 is converted into continuous power supply to the power supply 71, thereby ensuring the power supply of core components such as the projection component 2 and the control component 6 (mentioned below), so as to solve the problem of the floating display device relying on a built-in battery and having short battery life.

[0082] The power supply 71 can be a high-capacity lithium battery, which is electrically connected to the projection component 2, control component 6, etc. via wires to provide a stable power supply.

[0083] The power conversion element 72 is disposed on the airbag 1 and connected to the power supply 71, and is used to convert external energy into electrical energy and transmit it to the power supply 71. Specifically, the power conversion element 72 can have the following three embodiments:

[0084] In the first embodiment, such as Figure 13 As shown, the power conversion component 72 includes a photoelectric conversion film, which is attached to the non-projection area of ​​the airbag 1 to avoid blocking the projection light. The photoelectric conversion film can be used to convert light energy into electrical energy. The photoelectric conversion film is connected to the charging interface of the power supply 71 through a wire, and the converted electrical energy is directly delivered to the power supply 71 for storage.

[0085] In outdoor scenarios, the photoelectric conversion film absorbs sunlight and converts light energy into electrical energy through the photoelectric effect, storing it in the power supply 71 to provide power to the equipment.

[0086] In this embodiment, compared to the power supply method of built-in battery, the photoelectric conversion film can achieve "charging while using", which greatly improves the device's battery life. At the same time, the design of the photoelectric conversion film attached to the airbag 1 does not require additional space for the support frame 3, avoiding increasing the weight and volume of the device, and taking into account both power supply requirements and levitation performance.

[0087] In the second embodiment, as Figure 12 As shown, the floating display device also includes a charging dock 8, which is an energy transmitter that works in conjunction with the power conversion unit 72 to achieve wireless charging. The charging dock 8 has a transmitting coil that can establish a magnetic field nearby; the power conversion unit 72 includes a receiving coil that generates an induced current in the magnetic field, converting electromagnetic energy into electrical energy and delivering it to the power source 71 to achieve wireless charging.

[0088] In the third embodiment, as Figure 14 As shown, the floating display device also includes a base station 9, which is used to transmit electromagnetic beams or light beams to the power conversion component 72. In one embodiment, the power conversion component 72 includes a charging antenna, which works in conjunction with the electromagnetic beam emitted by the base station 9 to achieve wireless radio frequency remote charging. The charging antenna can be a flexible FPC (flexible printed circuit) antenna, which is fixed to the side of the support frame 3 by adhesive or clips. The base station 9 can be a phased array charging base station 9, which uses a phased array antenna to modulate the electromagnetic beam and point it at the charging antenna of the display device; after receiving the electromagnetic beam, the charging antenna converts the radio frequency energy into AC power and supplies it to the power supply 71, realizing remote charging in the floating state.

[0089] In another approach, the power conversion component 72 includes a photoelectric conversion element, which works in conjunction with the beam emitted by the base station 9 to achieve remote charging using solar energy. The photoelectric conversion element can be a multi-junction GaInP / GaAs / Ge solar cell, used to absorb visible and near-infrared light. The base station 9 integrates a visual recognition module and a laser emitter. The visual recognition module can capture the position information of the floating display device in real time. The base station 9 uses the visual recognition module to locate the position of the floating display device and adjusts the angle of the laser emitter so that the laser shines on the photoelectric conversion element. The photoelectric conversion element absorbs the laser energy and converts it into electrical energy, thus achieving remote charging.

[0090] The device in this embodiment can complete charging while floating, avoiding interruption of display tasks due to charging; at the same time, the base station 9 can power multiple floating devices simultaneously, improving scene adaptability.

[0091] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A suspended display device, characterized by, The application relates to a floating display device, comprising: an air bag, which is internally filled with gas to float in the air; a supporting framework, which is connected to the outer periphery of the air bag and is used for maintaining the shape of the air bag, wherein the supporting framework is foldable or retractable; and a projection assembly, which is connected to the supporting framework and is used for projecting an image on the air bag. The supporting framework comprises a plurality of supporting rods which are connected to each other, and at least part of the supporting rods are foldable.

2. The suspended display device of claim 1, wherein, The supporting rod comprises two sub-rods and a hinge, and the two sub-rods are hinged through the hinge.

3. The suspended display device of claim 2, wherein, The supporting framework comprises a plurality of supporting rods which are connected to each other, and at least part of the supporting rods are retractable.

4. The suspended display apparatus of claim 1, wherein, The supporting framework further comprises a connecting seat, and one end of the plurality of supporting rods is connected to the connecting seat.

5. The suspended display device of any one of claims 2 to 4, wherein, The floating display device further comprises a thrust mechanism, which is connected to the supporting framework and is used for providing thrust to the air bag.

6. The suspended display device of claim 5, wherein, The thrust mechanism comprises:

7. The suspended display device of claim 6, wherein, a driving member, which is connected to the connecting seat; and a power paddle, which is in transmission connection with the driving member and is used for rotating under the drive of the driving member to provide thrust. The projection assembly comprises:

8. The suspended display apparatus of claim 1, wherein, a support, which is connected to the supporting framework; and a projection body, which is connected to the support and is used for projecting an image on the air bag. The floating display device further comprises a counterweight, which is movably connected to the supporting framework and is used for adjusting the position of the gravity center of the air bag.

9. The suspended display apparatus of claim 1, wherein, The floating display device further comprises a control assembly, which is arranged on the counterweight and is used for controlling the projection assembly.

10. The suspended display device of claim 9, wherein, ​

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