A highly efficient and sound-transparent LED display module

Abstract

The utility model belongs to the field of LED display technology, and discloses an efficient sound-transmitting LED display module, comprising: a substrate, wherein a groove is provided on the first surface of the substrate; a display unit, wherein a plurality of the display units are arranged in the groove at intervals; a cylindrical cavity, wherein the cylindrical cavity is arranged at the center of the second surface of the substrate, a corrugated structure is provided on the inner side wall of the cylindrical cavity, and both ends of the cylindrical cavity are designed to be open, wherein the first surface and the second surface of the substrate are two side surfaces opposite to each other; a sound-transmitting hole structure, comprising a plurality of polygonal sound-transmitting holes, wherein the plurality of polygonal sound-transmitting holes are arranged at the center of the groove and communicate with the cylindrical cavity. The utility model solves the technical problems of the existing LED display module, such as unsatisfactory sound transmission effect, uneven sound propagation, and severe attenuation, thereby significantly improving the transmission efficiency and clarity of the sound.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to a highly efficient sound-transmitting LED display module. Background Art

[0002] LED (Light Emitting Diode) display modules are a key component widely used in various display devices, such as TVs, display screens, and car displays. Existing LED display modules are designed to provide high brightness and clear image display effects. However, in some specific application scenarios, such as conference rooms and billboards, not only good display effects are required, but also the effect of sound transmission needs to be considered to maintain the acoustic environment of the space and improve the user experience.

[0003] At present, there are some solutions on the market to achieve sound transmission of LED display modules, but these solutions generally have some shortcomings and limitations. For example, the public document CN202120618677.7, a MiniLED display module, a MiniLED display screen and an electronic device, discloses "including a light board and a speaker electrically connected to the light board, the light board includes: a PCB substrate, a through hole is opened on the PCB substrate; a display unit, a plurality of the display units are installed on one side of the PCB substrate and electrically connected to the PCB substrate, and a gap is provided between two adjacent display units; the speaker is installed on the side of the PCB substrate away from the display unit and electrically connected to the PCB substrate. "It can be seen from the content disclosed in the above public documents that the prior art only adds a speaker to the circuit board for sound transmission, but it will lead to unsatisfactory sound transmission effect, uneven sound propagation, severe attenuation and other problems, which seriously affect the user's perception and experience of sound.

[0004] Therefore, it is necessary to provide a new type of LED display module to solve the above problems existing in the prior art. Utility Model Content

[0005] The main purpose of the utility model is to provide an efficient sound-transmitting LED display module, aiming to solve the technical problems that the existing sound transmission effect is not ideal, the sound propagation is uneven, the sound attenuation is serious, etc.

[0006] To achieve the above object, the utility model provides a highly efficient sound-transmitting LED display module, comprising:

[0007] A substrate, wherein a first surface of the substrate is provided with a groove;

[0008] A display unit, wherein a plurality of the display units are arranged in the groove at intervals;

[0009] A cylindrical cavity, the cylindrical cavity is arranged at the center of the second surface of the substrate, a corrugated structure is arranged on the inner side wall of the cylindrical cavity, and both ends of the cylindrical cavity are open, wherein the first surface and the second surface of the substrate are opposite to each other;

[0010] The sound-transmitting hole structure comprises a plurality of polygonal sound-transmitting holes, wherein the plurality of polygonal sound-transmitting holes are arranged at the center of the groove and communicate with the cylindrical cavity.

[0011] Furthermore, it also includes a sound receiving structure, and a plurality of the sound receiving structures are arranged on the side wall of the cylindrical cavity away from the substrate and are connected to the inside of the cylindrical cavity.

[0012] Furthermore, it also includes a dustproof structure, which is an annular dustproof net, and the annular dustproof net covers the opening of the cylindrical cavity to prevent dust from entering the interior of the cylindrical cavity.

[0013] Furthermore, the substrate includes a plurality of grooves, each of the grooves is provided with a plurality of display units, a spacing groove is provided between every two grooves, and each of the spacing grooves is provided with a strip-shaped sound-transmitting hole.

[0014] Furthermore, the display unit includes a first part and a second part, the first part is arranged on the circumference of the polygonal sound-transmitting hole, and the second part is arranged at intervals on the circumference of the first part.

[0015] Furthermore, horn-shaped sound amplification structures are provided at the openings at both ends of the cylindrical cavity, and the sound amplification structures are used to diffuse the sound waves in the cylindrical cavity to the external space.

[0016] Furthermore, the sound receiving structure includes a sound receiving hole and a sound receiving element. The sound receiving hole is arranged on the side wall of the cylindrical cavity, and the sound receiving element is connected to the sound receiving hole.

[0017] Furthermore, a convex rib is provided on an outer peripheral wall of the cylindrical cavity away from the substrate, and the sound receiving structure is arranged inside the convex rib.

[0018] Furthermore, it also includes a plurality of fixing members, which are arranged in the spacing grooves to fix the positional relationship between two adjacent grooves to improve the stability of the entire display module.

[0019] Furthermore, it also includes a connecting line structure, which is arranged inside the substrate and is used to connect various display units.

[0020] Beneficial effects:

[0021] The utility model discloses an efficient sound-transmitting LED display module, which adopts the design of a cylindrical cavity. The cylindrical cavity is arranged at the center of the second surface of the substrate, and a corrugated structure is arranged on its inner side wall. The two ends are designed to be open, which can effectively guide and diffuse sound waves, thereby reducing the reflection and diffraction phenomenon during sound propagation, so that the sound can be more evenly propagated to the entire area of ​​the LED display module. Compared with the existing design, the introduction of the cylindrical cavity effectively reduces the attenuation of sound, improves the transmission efficiency and clarity of sound, and thus significantly improves the sound transmission effect. Secondly, the present application further increases the sound transmission effect by providing a groove on the first surface of the substrate and a polygonal sound-transmitting hole at the center of the groove, so that the sound can pass through the substrate more directly, and by communicating with the cylindrical cavity, further diffuse to the entire area of ​​the LED display module.

[0022] To sum up, the beneficial effects of the present application are mainly reflected in solving the technical problems of poor sound transmission, uneven sound propagation and severe attenuation of existing LED display modules by introducing designs such as cylindrical cavities, grooves and sound-transmitting holes, thereby significantly improving the sound transmission efficiency and clarity, and providing a better sound experience and broader application prospects for the application of LED display modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a highly efficient sound-transmitting LED display module according to an embodiment of the utility model;

[0024] Figure 2 This is a structural schematic diagram of the second surface of the substrate of the efficient sound-transmitting LED display module of one embodiment of the utility model;

[0025] Figure 3 This is a schematic cross-sectional structural diagram of a high-efficiency sound-transmitting LED display module according to an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a groove of a high-efficiency sound-transmitting LED display module according to an embodiment of the utility model.

[0027] Among them: 1. substrate; 2. groove; 21. spacing groove; 22. strip sound-permeable hole; 3. display unit; 31. first part; 4. cylindrical cavity; 41. corrugated structure; 5. polygonal sound-permeable hole; 6. sound receiving structure; 7. dust-proof structure; 8. convex rib; 9. fixing part.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Reference Figure 1-Figure 4In one embodiment of the utility model, an efficient sound-transmitting LED display module comprises: a substrate 1, wherein a groove 2 is provided on the first surface of the substrate 1; a display unit 3, wherein a plurality of the display units 3 are arranged in the groove 2 at intervals; a cylindrical cavity 4, wherein the cylindrical cavity 4 is arranged at the center position of the second surface of the substrate 1, a corrugated structure 41 is provided on the inner side wall of the cylindrical cavity 4, and both ends of the cylindrical cavity 4 are open designs, wherein the first surface and the second surface of the substrate 1 are opposite to each other on two side surfaces; a sound-transmitting hole structure, comprising a plurality of polygonal sound-transmitting holes 5, wherein the plurality of polygonal sound-transmitting holes 5 are arranged at the center position of the groove 2 and communicate with the cylindrical cavity 4.

[0034] In this embodiment, a cylindrical cavity 4 is designed, which is arranged at the center of the second surface of the substrate 1, that is, on the back of the substrate 1. A corrugated structure 41 is arranged on the inner side wall of the cylindrical cavity 4. The design of this structure not only enhances the structural stability of the cylindrical cavity 4, but also improves the transmission efficiency of sound. The corrugated structure 41 can effectively reflect and focus sound waves, so that the sound reduces the energy loss during the propagation process, effectively guides and diffuses the sound waves, thereby reducing the reflection and diffraction phenomenon during the propagation of the sound, so that the sound can be more evenly propagated to the entire area of ​​the LED display module. At the same time, the two ends of the cylindrical cavity 4 are designed to be open, which allows the sound to freely enter and exit the cylindrical cavity 4 without being hindered. Such a design further improves the transmittance of the sound, so that the LED display module can present a clearer and more realistic sound effect when playing audio. In addition, the polygonal sound-permeable hole 5 is connected to the cylindrical cavity 4 and is located at the center of the groove 2, thereby realizing the effective transmission of sound from the front of the LED display module. The design of the polygonal sound-permeable hole 5 can ensure the uniform distribution of sound and avoid the distortion and distortion of sound during the transmission process. Through the above design, the efficient sound-permeable LED display module in this embodiment achieves a good sound transmission effect. Whether watching videos or listening to audio, users can get a clearer and more realistic auditory experience. In this embodiment, the display unit 3 can also be a lamp bead or a display module.

[0035] It is worth mentioning that the corrugated structure 41 of the cylindrical cavity 4 in this embodiment may not be a single form, but may be a combination of multiple corrugated forms, such as a composite corrugated structure 41. This design not only enriches the appearance of the cylindrical cavity 4, but also optimizes its performance to a certain extent. The composite corrugated structure 41 may include corrugations of different heights, different widths, and different spacings interwoven with each other to form a visual effect with rich layers and staggered arrangement. In the specific implementation process, a suitable composite corrugated structure 41 can be selected according to actual needs and application scenarios. For example, in situations where it is necessary to withstand greater pressure or impact, a composite corrugated structure 41 with a larger corrugation height and denser spacing can be selected; and in situations where higher requirements are placed on thermal conductivity, a composite corrugated structure 41 with a moderate corrugation width and uniform spacing can be selected.

[0036] In another embodiment, the corrugated structure 41 of the cylindrical cavity 4 in this embodiment can be designed according to the wavelength of the specific sound. For low-frequency sounds with longer wavelengths, a corrugated structure 41 with a larger amplitude and a longer period can be selected to increase the reflection and scattering effect of the sound. For high-frequency sounds with shorter wavelengths, a corrugated structure 41 with a smaller amplitude and a shorter period can be selected to increase the uniform distribution and three-dimensional sense of the sound in space. Specifically, for example, if the user location is a movie theater, the sound required is mainly low-frequency sound effects, such as explosions, thunder, etc., then in the design of the cylindrical cavity 4, the use of a corrugated structure 41 with a larger amplitude and a longer period can be considered. Such a design can effectively reflect and scatter low-frequency sounds, enhance the shock and immersion of the sound effects, and make the audience feel as if they are in the scene and more immersed in the atmosphere of the movie. For some scenes, such as concerts or opera houses, the sounds required are mainly high-frequency music and singing, so in the design of the cylindrical cavity 4, a corrugated structure 41 with a smaller amplitude and a shorter period should be selected. Such a design helps to evenly distribute high-frequency sounds in space, avoids the sound being too concentrated or too sparse in certain areas, thereby enhancing the three-dimensional and layered sense of the sound, allowing the audience to hear each note and lyrics more clearly and enjoy a more perfect music experience. At the same time, it is worth noting that the design of the corrugated structure 41 of the cylindrical cavity 4 is not static, but needs to be flexibly adjusted according to actual needs and venue characteristics. For example, in some specific music performances, it may be necessary to emphasize the effects of low-frequency and high-frequency sounds at the same time. In this case, the balance between the two needs to be considered during the design, and a suitable combination of corrugated structures 41 should be selected to achieve the best sound effect.

[0037] In one embodiment, reference Figure 2 , and also includes a sound receiving structure 6, wherein a plurality of the sound receiving structures 6 are arranged on the side wall of the cylindrical cavity 4 away from the substrate 1 and are connected to the interior of the cylindrical cavity 4.

[0038] In this embodiment, by setting the sound receiving structure 6, the sound collection and transmission capabilities of the LED display module can be further improved. The sound receiving structure 6 is arranged on the side wall of the cylindrical cavity 4 away from the substrate 1, and is connected to the inside of the cylindrical cavity 4, so that the sound receiving structure 6 can effectively receive the sound of the surrounding or external equipment, and transmit it to the inside of the cylindrical cavity 4. The sound receiving structure 6 can adopt a highly sensitive microphone or other sound collection device to ensure that the sound signal can be captured accurately and clearly. Through the connection between the sound receiving structure 6 and the cylindrical cavity 4, the sound signal can be reflected, focused and diffused inside the cylindrical cavity 4, thereby enhancing the transmission effect and sound quality performance of the sound. The number and layout of the sound receiving structure 6 can be flexibly adjusted according to actual needs to achieve the best sound collection effect. At the same time, the sound receiving structure 6 can also be connected to the control system of the LED display module to realize the synchronous playback of the sound signal and the display screen, providing users with a more immersive visual and auditory experience. In summary, by adding the sound collecting structure 6, the efficient sound-transmitting LED display module in this embodiment can not only realize the transmission and transfer of sound, but also collect and process sound signals, further improving its overall performance and functions.

[0039] In one embodiment, a dustproof structure 7 is further included. The dustproof structure 7 is an annular dustproof net. The annular dustproof net covers the opening of the cylindrical cavity 4 to prevent dust from entering the cylindrical cavity 4.

[0040] In this embodiment, by providing a dustproof structure 7 at the opening of the cylindrical cavity 4, dust and other debris can be effectively prevented from entering the interior of the cylindrical cavity 4, thereby ensuring the cleanliness of the internal structure of the cylindrical cavity 4 and the smooth transmission of sound. The dustproof structure 7 adopts a ring-shaped dustproof net design, which can cover the entire opening and effectively block the entry of dust. At the same time, the design of the dustproof net also has a certain air permeability and will not affect the transmission and diffusion of sound. In addition, the dustproof net can also be easily disassembled and cleaned to ensure its long-term dustproof effect. Specifically, the dustproof net is snap-connected to the cylindrical cavity 4. By adding the dustproof structure 7, the high-efficiency sound-transmitting LED display module in this embodiment not only has excellent sound transmission performance, but also has good dustproof ability, can work stably in various environments, and provide users with a better quality experience.

[0041] In one embodiment, the substrate 1 includes a plurality of grooves 2 , each of the grooves 2 is provided with a plurality of display units 3 , a spacing groove 21 is provided between every two grooves 2 , and each of the spacing grooves 21 is provided with a strip-shaped sound-transmitting hole 22 .

[0042] In this embodiment, by setting a plurality of grooves 2 and spacing grooves 21 on the substrate 1, a partition layout of the display unit 3 is realized, so that the display unit 3 in each groove 2 can be arranged more compactly, thereby improving the clarity and fineness of the overall display effect. The setting of the spacing grooves 21 allows each groove 2 to maintain a certain distance, avoiding interference between adjacent grooves 2, and further improving the display effect. At the same time, the setting of the spacing grooves 21 forms a certain distance between adjacent grooves 2, avoiding mutual interference and heat accumulation between the display units 3, which helps to improve the heat dissipation effect and extend the service life. In addition, a strip-shaped sound-permeable hole 22 is also provided on the spacing groove 21. The strip-shaped sound-permeable hole 22 can not only increase the channel for sound transmission, improve the sound transmission effect, and enable the sound to be more evenly propagated throughout the LED display module, but also effectively reduce the weight of the LED display module and reduce the overall cost. The design of the strip-shaped sound-permeable hole 22 can be adjusted according to actual needs, for example, its length, width and number can be changed to adapt to different scenes and sound characteristics. This layout design not only optimizes the display effect and sound transmission performance of the LED display module, but also improves the rationality and stability of its overall structure, making the LED display module more reliable and efficient in practical applications. In addition, the LED display module in this embodiment also has flexible scalability. The user can increase or decrease the number of grooves 2 and spacing grooves 21 as needed to adapt to display requirements of different sizes and resolutions. At the same time, the module also supports a variety of interface types, which is convenient for connection and communication with other devices or systems, and realizes richer application scenarios and functions.

[0043] In one embodiment, reference Figure 4 The display unit 3 includes a first part 31 and a second part. The first part 31 is arranged on the peripheral side of the polygonal sound-permeable hole 5, and the second part is arranged on the peripheral side of the first part 31 at intervals.

[0044] In this embodiment, by dividing the display unit 3 into a first part 31 and a second part, the display effect and sound transmission performance of the LED display module can be further optimized. Specifically, the first part 31 is arranged on the periphery of the polygonal sound-permeable hole 5, that is, the area adjacent to the sound-permeable hole. This part of the display unit 3 can be presented to the audience more directly. Since they are located around the sound-permeable hole, the sound can also be diffused and reflected to a certain extent during the transmission process, which enhances the stereoscopic and layered sense of the sound. The second part is arranged at intervals on the periphery of the first part 31, forming a peripheral area surrounding the first part 31, that is, other areas except the first part 31. Such a layout can not only improve the utilization rate of the display area, but also further increase the channel for sound transmission, so that the sound is more evenly propagated throughout the LED display module. In addition, the way the second part is arranged at intervals can also reduce the interference between adjacent display units 3 and improve the consistency and stability of the display effect. Through this partition layout, the LED display module in this embodiment not only has excellent display effects and sound transmission performance, but also can adapt to more complex scene requirements and provide a richer and more immersive viewing experience.

[0045] In one embodiment, horn-shaped sound amplification structures are provided at the openings at both ends of the cylindrical cavity 4 , and the sound amplification structures are used to diffuse the sound waves in the cylindrical cavity 4 to the external space.

[0046] In this embodiment, by setting a horn-shaped sound amplification structure at the openings at both ends of the cylindrical cavity 4, the sound transmission effect of the LED display module can be further enhanced. The design of the horn-shaped sound amplification structure can effectively diffuse the sound waves in the cylindrical cavity 4 to the external space, making the propagation of sound more extensive and uniform. At the same time, the sound amplification structure can also focus and enhance the sound waves, making the sound clearer and louder, and improving the overall sound quality performance. This design not only enhances the practicality and entertainment of the LED display module, but also can bring a more shocking and immersive audio-visual experience to the audience. In addition, the shape and size of the sound amplification structure can be flexibly adjusted according to actual needs to adapt to the requirements of different scenes and sound characteristics. Therefore, the high-efficiency sound-transmitting LED display module in this embodiment has significant advantages in sound transmission and sound quality performance, can meet the needs of various application scenarios, and bring a better quality use experience to the audience.

[0047] In one embodiment, the sound receiving structure 6 includes a sound receiving hole and a sound receiving element. The sound receiving hole is arranged on the side wall of the cylindrical cavity 4, and the sound receiving element is connected to the sound receiving hole.

[0048] In this embodiment, by setting a sound receiving hole on the side wall of the cylindrical cavity 4 and equipping a corresponding sound receiving element, the sound receiving function of the LED display module is realized. The sound receiving hole, as a channel for sound to enter, can receive sound signals from the external space, and the sound receiving element is connected to an external device and transmits the sound of the external device to the LED display module, so that the sound signal can be captured and transmitted. This design enables the LED display module to not only have the functions of display and sound transmission, but also be used as a sound receiving device, further broadening its application scenarios and practicality. The setting position and number of the sound receiving holes can be adjusted according to actual needs to achieve the best sound receiving effect. The type and performance of the sound receiving element can also be selected according to the application scenario to meet different sound characteristics and sound quality requirements. Through this design, the LED display module in this embodiment has excellent sound receiving ability while maintaining efficient sound transmission performance, providing users with a more comprehensive and convenient user experience. In addition, this design also helps to improve the intelligence level of the LED display module, so that it can better adapt to the needs of modern multimedia applications and bring users a more colorful user experience.

[0049] In one embodiment, reference Figure 2 The outer wall of the cylindrical cavity 4 away from the substrate 1 is provided with a convex rib 8 , and the sound receiving structure 6 is arranged in the convex rib 8 .

[0050] In this embodiment, by setting a convex rib 8 on the outer peripheral wall of the cylindrical cavity 4 away from the substrate 1, and setting a sound receiving structure 6 in the convex rib 8, the structural stability and sound receiving effect of the LED display module are further enhanced. The design of the convex rib 8 can increase the rigidity and impact resistance of the cylindrical cavity 4, and prevent deformation or damage during use. At the same time, the convex rib 8 can also provide stable support and protection for the sound receiving structure 6 to ensure the normal operation of the sound receiving element. The sound receiving structure 6 is arranged in the convex rib 8, which can more directly receive sound signals from the external space, reduce interference and loss during sound transmission, and improve the sensitivity and clarity of sound reception. In addition, the combination of the convex rib 8 and the sound receiving structure 6 can also realize the modular design of the LED display module, which is convenient for users to install, maintain and upgrade. This design not only improves the service life and reliability of the LED display module, but also provides users with a more convenient and efficient use experience. By continuously optimizing and improving the structural design and functional configuration, the LED display module in this embodiment has achieved significant improvements in display effect, sound transmission and sound receiving performance, meeting the needs and expectations of more users.

[0051] In one embodiment, a plurality of fixing members 9 are further included. The plurality of fixing members 9 are disposed in the spacing groove 21 to fix the positional relationship between two adjacent grooves 2 to improve the stability of the entire display module.

[0052] In this embodiment, by adding several fixing members 9 in the spacing groove 21, it is possible to further ensure that the positional relationship between two adjacent grooves 2 is stable, thereby improving the stability and reliability of the entire LED display module. The fixing member 9 can be in various forms, such as screws, buckles or adhesives, etc., and the specific selection depends on actual needs and installation environment. These fixing members 9 can firmly connect adjacent grooves 2 to prevent loosening or displacement during use, thereby ensuring the flatness and consistency of the display module. At the same time, the fixing member 9 can also disperse and reduce the impact and vibration of the display module from the outside world, thereby improving its impact resistance and shock resistance. Through this design, the LED display module in this embodiment not only has excellent display effects and sound transmission performance, but also can withstand more complex installation and use environments, providing users with a more stable and reliable user experience. In addition, the installation and removal of the fixing member 9 are also relatively convenient, which is convenient for users to perform subsequent maintenance and upgrade operations.

[0053] In one embodiment, a connecting line structure is further included. The connecting line structure is arranged inside the substrate 1 and is used to connect various display units 3 .

[0054] In this embodiment, by setting a connecting wire structure inside the substrate 1, effective connection and signal transmission of each display unit 3 are achieved. The connecting wire structure is made of highly conductive material, which can ensure the stability and reliability of signal transmission and reduce signal loss and interference. At the same time, the design of the connecting wire structure also takes into account the rationality and aesthetics of the layout, avoids complex wiring processes, and improves the integration and reliability of the entire LED display module. This design not only simplifies the internal structure of the display module, reduces manufacturing costs, but also improves the working efficiency and performance of the display module. In addition, the connecting wire structure also has certain scalability and maintainability, which is convenient for users to expand and upgrade as needed, as well as subsequent maintenance and overhaul work. Therefore, the LED display module in this embodiment fully considers practicality and convenience in the design of the connecting wire structure, providing users with a more high-quality and efficient use experience.

[0055] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An efficient sound-transmitting LED display module, characterized in that: include: A substrate, wherein a first surface of the substrate is provided with a groove; A display unit, wherein a plurality of the display units are arranged in the groove at intervals; A cylindrical cavity, the cylindrical cavity is arranged at the center of the second surface of the substrate, a corrugated structure is arranged on the inner side wall of the cylindrical cavity, and both ends of the cylindrical cavity are open, wherein the first surface and the second surface of the substrate are opposite to each other; The sound-transmitting hole structure comprises a plurality of polygonal sound-transmitting holes, wherein the plurality of polygonal sound-transmitting holes are arranged at the center of the groove and communicate with the cylindrical cavity.

2. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: It also includes a sound receiving structure, wherein a plurality of the sound receiving structures are arranged on the side wall of the cylindrical cavity away from the substrate and are connected with the interior of the cylindrical cavity.

3. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: It also includes a dustproof structure, which is an annular dustproof net. The annular dustproof net covers the opening of the cylindrical cavity and is used to prevent dust from entering the interior of the cylindrical cavity.

4. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: The substrate comprises a plurality of grooves, each of which is provided with a plurality of display units, a spacing groove is provided between every two grooves, and each of which is provided with a strip-shaped sound-transmitting hole.

5. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: The display unit includes a first part and a second part, wherein the first part is arranged on the circumference of the polygonal sound-transmitting hole, and the second part is arranged at intervals on the circumference of the first part.

6. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: The two end openings of the cylindrical cavity are provided with horn-shaped sound amplification structures, and the sound amplification structures are used to diffuse the sound waves in the cylindrical cavity to the external space.

7. The high-efficiency sound-transmitting LED display module according to claim 2, characterized in that: The sound receiving structure comprises a sound receiving hole and a sound receiving element. The sound receiving hole is arranged on the side wall of the cylindrical cavity, and the sound receiving element is connected to the sound receiving hole.

8. The high-efficiency sound-transmitting LED display module according to claim 2, characterized in that: The outer peripheral wall of the cylindrical cavity away from the substrate is provided with a convex rib, and the sound receiving structure is arranged in the convex rib.

9. The high-efficiency sound-transmitting LED display module according to claim 4, characterized in that: It also includes a plurality of fixing members, which are arranged in the spacing grooves and are used to fix the positional relationship between two adjacent grooves to improve the stability of the entire display module.

10. The high-efficiency sound-transmitting LED display module according to claim 1, characterized in that: It also includes a connecting line structure, which is arranged inside the substrate and is used to connect various display units.

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