LED module and LED display device

Abstract

The application discloses an LED module and an LED display device, and relates to the technical field of LED display equipment. The LED module comprises at least two carrier plates, a plurality of lamp beads, a first connecting piece and a plurality of first fasteners, the two adjacent carrier plates are arranged in a splicing mode, the carrier plates are provided with first through holes arranged in an array, the plurality of lamp beads are arranged in an array in the solid regions of the carrier plates, the first connecting piece is arranged on the side of the carrier plate away from the lamp beads and is provided with at least two first connecting holes, and the first fasteners are sequentially arranged in the first through holes and the first connecting holes to connect the two adjacent carrier plates. The application is beneficial to realizing large-screen display of the LED display device.

Description

Technical Field

[0001] This invention relates to the field of LED display equipment technology, and in particular to an LED module and an LED display device. Background Technology

[0002] LED (Light Emitting Diode) displays are display devices made of LEDs. By controlling the brightness and color combination of LEDs, they can display text, images, videos, and other content, and are widely used in commercial advertising and other fields.

[0003] In related technologies, to achieve large-screen display in LED display devices, multiple carrier boards need to be spliced ​​together. Therefore, how to achieve effective splicing of multiple carrier boards is a key research focus for those in this field. Summary of the Invention

[0004] The main objective of this invention is to propose an LED module and an LED display device, which aims to achieve effective splicing of multiple carrier boards to realize large-screen display of the LED display device.

[0005] To achieve the above objectives, the present invention proposes an LED module comprising at least two carrier plates, multiple LED beads, a first connector, and multiple first fasteners. Adjacent carrier plates are spliced ​​together, and each carrier plate has first through holes arranged in an array. Multiple LED beads are arranged in an array within the solid area of ​​each carrier plate. The first connector is located on the side of the carrier plate opposite to the LED beads and has at least two first connection holes. The first fasteners are sequentially inserted through the first through holes and the first connection holes to connect adjacent carrier plates.

[0006] In one embodiment, the first connector is further provided with a second through hole, which is spaced apart from the first connecting hole and overlaps with the first through hole.

[0007] In one embodiment, a plurality of first connectors are provided along the vertical direction, and the plurality of first connectors are spaced apart to connect to two adjacent carrier plates respectively.

[0008] In one embodiment, at least three carrier plates are provided along the horizontal direction, and multiple first connectors are provided along the splicing direction of the carrier plates. The multiple first connectors are spaced apart to be sequentially connected to each of the carrier plates in the horizontal direction.

[0009] In one embodiment, the carrier plate has at least two rows in the horizontal direction and at least two rows in the vertical direction; the LED module further includes a second connector and a plurality of second fasteners. The second connector is located at the splicing point of four circumferentially adjacent carrier plates and is spaced apart from the first connector. The second connector has a second connecting hole on its four sides. The second fasteners are sequentially inserted through the first through hole and the second connecting hole to connect the four circumferentially adjacent carrier plates.

[0010] In one embodiment, a third through hole is provided in the middle of the second connector, the third through hole being located between each of the second connecting holes and overlapping with the first through hole of the carrier plate.

[0011] In one embodiment, the LED module further includes a potting layer, which is coated on the surface of the carrier board and the LED beads, and the potting layer is made of a transparent material.

[0012] In one embodiment, the carrier plate has fastening holes spaced apart from the lamp beads for fastening connection with the housing assembly.

[0013] In one embodiment, the carrier plate has a first interface on the side opposite to the lamp bead for insertion into a control module within the housing assembly.

[0014] The present invention also proposes an LED display device, the LED display device including a housing assembly, a control module and an LED module as described above, the housing assembly having a first clearance hole, the control module being disposed inside the housing assembly, and the LED module being mounted on one side of the housing assembly and partially passing through the first clearance hole for electrical connection to the control module.

[0015] In one embodiment, the housing assembly includes a housing shell, a cover, and a first sealing member. The housing shell has a recessed storage groove on one side to accommodate the control module. The cover covers the opening of the storage groove and has a first clearance hole communicating with the storage groove. The first clearance hole is used for the LED module to pass through and forms a sealing fit with the LED module. The first sealing member is disposed between the housing shell and the cover and is circumferentially disposed around the edge of the opening of the storage groove.

[0016] In one embodiment, the opening edge of the receiving slot is recessed with a first groove, and one side of the cover is provided with a first protrusion, the first protrusion being inserted into the first groove. And / or, the housing assembly further includes a second seal, the second seal being disposed on the bottom wall of the first groove and abutting against the first protrusion.

[0017] In the technical solution of this invention, two adjacent carrier plates are spliced ​​and aligned so that their edges are close together. A first connector, acting as a connecting bridge, is located on the side of the carrier plate away from the LED bead. The array of first through holes on the carrier plate itself serves as an installation channel. A first fastener passes through the first through hole from the LED bead side of the carrier plate, extends into the first connecting hole of the first connector, and locks in place. At this point, the two adjacent carrier plates are firmly connected through the cooperation of the first connector and the first fastener, fixing their relative positions and preventing easy separation.

[0018] The LED display device of this invention achieves effective splicing of multiple carrier boards, ensuring the structural strength of the splice while maintaining the integrity and transparency of the displayed image by placing the first connector on the side of the carrier board away from the LED beads. Furthermore, utilizing the existing first through-hole on the carrier board as a connection channel eliminates the need for additional openings, simplifying the carrier board manufacturing process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the LED display device provided by the present invention; Figure 2 A structural schematic diagram of an LED display device from another perspective; Figure 3 This is an exploded structural diagram of an LED display device; Figure 4 for Figure 3 A schematic diagram of the structure of the LED module after the potting layer is hidden; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 for Figure 5 A schematic diagram of the structure of the first connecting component; Figure 7 for Figure 5 A magnified view of a section at point B in the middle; Figure 8 for Figure 7 A schematic diagram of the structure of the second connecting member; Figure 9 for Figure 4 A partial structural diagram from another perspective; Figure 10 for Figure 2A partial cross-sectional view of the LED display device shown from the side; Figure 11 for Figure 3 Schematic diagram of the structure of the housing assembly and control module; Figure 12 for Figure 11 Schematic diagram of the middle shell assembly; Figure 13 for Figure 12 A schematic diagram of the exploded structure of the housing assembly shown; Figure 14 for Figure 13 A schematic diagram of the structure of the middle housing and the first sealing element; Figure 15 for Figure 14 A magnified view of a section at point C; Figure 16 for Figure 13 Structural diagram of the middle cover assembly; Figure 17 for Figure 13 A structural schematic diagram of the cover assembly from another perspective; Figure 18 for Figure 17 A magnified view of a section at point D; Figure 19 for Figure 13 Schematic diagram of the structure of the first sealing element; Figure 20 for Figure 15 A magnified view of a section at point E in the middle.

[0021] Explanation of reference numerals: 100, LED display device; 10, LED module; 1, carrier board; 11. First through hole; 12. Fastening hole; 13. First interface; 14. Cover clamp; 141. Third protrusion; 15. Encapsulation layer; 2. LED beads; 31. First connector; 311. First connecting hole; 312. Second through hole; 32. Second connector; 321. Second connecting hole; 322. Third through hole; 35. First fastener; 36. Second fastener; 50. Housing assembly; 51. Storage shell; 511. Storage slot; 512. First groove; 514. Second clearance hole; 52. Cover assembly; 521. First clearance hole; 522. First protrusion; 523. Second protrusion; 524. Second groove; 525. Support portion; 531, First sealing element; 5311, First sub-component; 5312, Second sub-component; 53131, Mud groove; 53132, Mud joint; 5314, Third connecting hole; 532, Second sealing element; 533, Third sealing element; 534, Fourth sealing element; 60. Control module; 61. Second interface.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] LED (Light Emitting Diode) displays are display devices made of LEDs. By controlling the brightness and color combination of LEDs, they can display text, images, videos, and other content, and are widely used in commercial advertising and other fields.

[0027] In related technologies, to achieve large-screen display in LED display devices, multiple carrier boards need to be spliced ​​together. Therefore, how to achieve effective splicing of multiple carrier boards is a key research focus for those in this field.

[0028] To address the aforementioned issues, this invention proposes an LED module 10 and an LED display device 100, which aim to achieve effective splicing of multiple carrier boards 1 to realize large-screen display of the LED display device 100.

[0029] Reference Figures 1 to 20 In one embodiment of the present invention, the LED module 10 includes at least two carrier plates 1, a plurality of LED beads 2, a first connector 31, and a plurality of first fasteners 35. Two adjacent carrier plates 1 are spliced ​​together, and each carrier plate 1 has first through holes 11 arranged in an array. A plurality of LED beads 2 are arranged in an array in the solid area of ​​each carrier plate 1. The first connector 31 is disposed on the side of the carrier plate 1 away from the LED beads 2 and has at least two first connection holes 311. The first fasteners 35 are sequentially inserted through the first through holes 11 and the first connection holes 311 to connect two adjacent carrier plates 1.

[0030] Among them, reference Figure 9 The carrier plate 1 is a substrate for carrying the LED beads 2. It has a through-hole 11 arranged in an array (the number of the first through-holes 11 is not fully shown in each figure due to software memory limitations). The solid areas between each first through-hole 11 are arranged with LED beads 2 (the number of LED beads 2 is not fully shown in each figure due to software memory limitations), and they are spaced apart from each first through-hole 11, which is conducive to achieving the effect of holographic imaging. Therefore, it can be applied to fields such as LED holographic screens.

[0031] In the technical solution of this invention, two adjacent carrier plates 1 are spliced ​​and aligned so that their edges are close together. A first connector 31, acting as a connecting bridge, is disposed on the side of the carrier plate 1 away from the LED bead 2. The array of first through holes 11 formed in the carrier plate 1 itself serves as an installation channel. A first fastener 35 passes through the first through hole 11 from the LED bead 2 side of the carrier plate 1, extends into the first connecting hole 311 of the first connector 31, and is locked. At this time, the two adjacent carrier plates 1 are firmly connected by the cooperation of the first connector 31 and the first fastener 35, and their relative positions are fixed, making them difficult to separate.

[0032] The LED display device 100 of this invention achieves effective splicing of multiple carrier plates 1, ensuring the structural strength of the splicing while maintaining the integrity and transparency of the displayed image by placing the first connector 31 on the side of the carrier plate 1 away from the LED beads 2. Simultaneously, utilizing the existing first through hole 11 on the carrier plate 1 as a connection channel eliminates the need for additional openings, simplifying the processing technology of the carrier plate 1.

[0033] Optionally, the first fastener 35 includes a connecting portion and a driving portion. The connecting portion passes sequentially through the first through hole 11 of the carrier plate 1 and the first connecting hole 311 of the first connector 31 to form a fastening connection. The driving portion is located on the side opposite to the first connector 31, allowing the fastener to be loosened from the front of the LED display device 100 to disassemble each carrier plate 1. Therefore, the present invention enables front maintenance of the LED display device 100, which is beneficial for placing the LED display device 100 in areas where construction is inconvenient on the back side, thereby improving the site adaptability of the LED display device 100.

[0034] Optionally, the first connector 31 can be made of a waterproof material, such as a 0.5mm thick stainless steel plate, to ensure both waterproofing and the connection strength of the LED carrier board. Alternatively, the first connector 31 and the first fastener 35 can be made of transparent parts such as plastic to avoid blocking light and to optimize the display effect.

[0035] Reference Figure 6 and Figure 7 In one embodiment of the present invention, the first connector 31 is further provided with a second through hole 312, the second through hole 312 being spaced apart from the first connecting hole 311 and overlapping with the first through hole 11.

[0036] In this embodiment, the second through hole 312 allows light to pass further through the area of ​​the first connector 31 not occupied by the first fastener 35, reducing the connector's obstruction of the light path and improving the overall light transmittance of the splicing area. Simultaneously, the second through hole 312 also reduces weight, lowering the overall weight of the first connector 31 and reducing the load on the carrier board 1, making it particularly suitable for the design of large-area, thin and light LED modules 10.

[0037] Optionally, the second through hole 312 can be circular, rectangular, or irregular in shape, and its size and number can be optimized based on optical simulation results to maximize the light-transmitting area while ensuring connection strength.

[0038] Reference Figure 2 and Figure 4 In one embodiment of the present invention, a plurality of first connectors 31 are provided along the vertical direction, and the plurality of first connectors 31 are spaced apart to be respectively connected to two adjacent carrier plates 1.

[0039] In this embodiment, there are multiple first connectors 31, spaced apart along the vertical direction. Each first connector 31 is independently connected to two adjacent carrier plates 1 at different heights. Compared to single-point connections, the spaced arrangement of multiple first connectors 31 ensures that the splicing force is evenly distributed along the edge of the carrier plate 1, effectively preventing warping or deformation of the carrier plate 1 edge due to concentrated force, thus improving the flatness and long-term reliability of the splicing. At the same time, the spaced arrangement also reserves space for electrical connections or heat dissipation channels between the carrier plates 1, taking into account the coordination between structure and function.

[0040] Reference Figure 2 and Figure 4 In one embodiment of the present invention, at least three of the carrier plates 1 are provided in the horizontal direction, and a plurality of the first connectors 31 are provided in the direction parallel to the splicing direction of the carrier plates 1. The plurality of first connectors 31 are spaced apart to be sequentially connected to each of the carrier plates 1 in the horizontal direction.

[0041] In this embodiment, when three or more carrier plates 1 need to be spliced ​​in the horizontal direction, multiple first connectors 31 are arranged sequentially along the splicing direction to connect each carrier plate 1 in series into a whole. This multi-segment connection scheme allows the LED module 10 to expand in the horizontal direction without restriction, and the number of carrier plates 1 can be flexibly increased according to the actual display size requirements.

[0042] Reference Figure 2 and Figure 7 In one embodiment of the present invention, the carrier plate 1 has at least two rows in the horizontal direction and at least two rows in the vertical direction. The LED module 10 also includes a second connector 32 and a plurality of second fasteners 36. The second connector 32 is disposed at the splicing point of four circumferentially adjacent carrier plates 1 and is spaced apart from the first connector 31. The second connector 32 is provided with second connecting holes 321 on its four sides. The second fasteners 36 are sequentially inserted through the first through hole 11 and the second connecting hole 321 to connect the four circumferentially adjacent carrier plates 1.

[0043] In this embodiment, when the LED module 10 needs to expand in both horizontal and vertical directions, it forms a scenario where four carrier plates 1 intersect at a cross-shaped junction. A second connector 32 is specifically positioned at this cross-shaped junction, with second connecting holes 321 on its four sides corresponding to the first through holes 11 of the four carrier plates 1. The four carrier plates 1 are simultaneously connected to the four extension arms of the second connector 32 using second fasteners 36, achieving synchronous fixing of the four carrier plates 1 at the intersection.

[0044] This cross-shaped connection structure is crucial in two-dimensional splicing. It effectively suppresses warping and misalignment at the intersection of the four carrier plates, ensuring the flatness of the entire display plane after large-area splicing.

[0045] Optionally, the second connector 32 can be made of 0.5mm thick stainless steel plate, which ensures both waterproofing and connection strength of the LED carrier board. Alternatively, the second connector 32 and the second fastener 36 can be made of transparent parts such as plastic parts, ensuring that light transmission in the intersection area is not affected and maintaining the uniformity and consistency of the display effect.

[0046] Reference Figure 8 In one embodiment of the present invention, a third through hole 322 is provided in the middle of the second connector 32. The third through hole 322 is located between each of the second connecting holes 321 and overlaps with the first through hole 11 of the carrier plate 1.

[0047] In this embodiment, the third through hole 322 is formed in the middle region of the second connector 32, located between the four second connecting holes 321. When the second connector 32 is installed at the intersection of the four carrier plates 1, the third through hole 322 overlaps with the first through hole 11 in the edge region of each carrier plate 1, forming a through light channel.

[0048] This design ensures light transmission in the center of the cross-shaped splicing area, avoiding a dark central area caused by the physical coverage of the second connector 32. This detail is particularly crucial for the LED display device 100, which requires high transparency. It ensures that the displayed image after large-area splicing has no visual splicing marks on a macroscopic scale and uniform pixel distribution on a microscopic scale, significantly improving the viewing experience.

[0049] Reference Figures 1 to 3 In one embodiment of the present invention, the LED module 10 further includes a potting layer 15, which is coated on the surface of the carrier plate 1 and the LED beads 2, and the potting layer 15 is made of a transparent material.

[0050] The potting layer 15 covers the surface of the carrier board 1 and the LED beads 2, forming a complete transparent protective layer, which is the GOB (Glue On Board) encapsulation process. The potting layer 15 can be made of transparent epoxy resin or silicone, which has good light transmittance and waterproof properties.

[0051] In this embodiment, on the one hand, the potting layer 15 seals the LED beads 2 and the circuit, isolating them from moisture, dust and chemical corrosion, significantly improving the protection level and service life of the LED module 10; on the other hand, the flat surface of the potting layer 15 can eliminate the tiny steps at the splicing points of each carrier board 1, making the transition of light at the splicing interface smoother, further weakening the splicing marks, making the entire display surface visually seamless, and improving the visual effect of the product.

[0052] Optionally, the potting layer 15 is applied after the carrier board 1 is assembled and covers the entire outer surface of the LED module 10 to provide waterproofing. The thickness of the potting layer 15 is flush with the top surface of each LED bead 2, so as not to affect the normal light output of the LED bead 2.

[0053] Reference Figure 9 In one embodiment of the present invention, the carrier plate 1 is provided with fastening holes 12 spaced apart from the lamp beads 2, so as to be fastened to the housing assembly 50.

[0054] In this embodiment, the fastening hole 12 is located in the solid area of ​​the carrier plate 1, maintaining a certain distance from the LED bead 2 to avoid interference with the LED bead 2. The fastening hole 12 is used for additional fasteners to pass through, fixing the carrier plate 1 to the housing assembly 50. At the same time, by avoiding the setting of a vertical beam, interference with the display screen due to the shadow of the vertical beam can be further avoided, which is beneficial to improving the large-screen display effect of the LED display device 100.

[0055] Meanwhile, since the carrier plate 1 is directly fastened to the front of the housing assembly 50, it is convenient to perform front maintenance on the LED module 10 and the control module 60 inside the housing assembly 50 directly from the front of the LED display device 100, avoiding the impact on the construction of the LED display device 100 due to space limitations.

[0056] Reference Figure 4 and Figure 10 In one embodiment of the present invention, the carrier plate 1 is provided with a first interface 13 on the side opposite to the lamp bead 2, so as to be inserted into the control module 60 in the housing assembly 50.

[0057] In this embodiment, the first interface 13 is located on the back of the carrier plate 1 and is used to plug into the control module 60 inside the housing assembly 50. When the carrier plate 1 is installed on the housing assembly 50, the first interface 13 synchronously connects with the second interface 61 of the control module 60, realizing synchronous conduction of power supply and signal transmission. This plug-in connection method avoids cumbersome cable soldering or ribbon cable plugging operations, greatly simplifies the assembly process, and facilitates further front maintenance of the LED display device 100.

[0058] Reference Figures 1 to 3 The present invention also proposes an LED display device 100, which includes a housing assembly 50, a control module 60, and an LED module 10 as described above. The housing assembly 50 has a first clearance hole 521. The control module 60 is disposed inside the housing assembly 50. The LED module 10 is mounted on one side of the housing assembly 50 and partially passes through the first clearance hole 521 to be electrically connected to the control module 60.

[0059] The specific structure of the LED module 10 is as described in the above embodiments. Since the LED display device 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0060] The control module 60 may include components such as a power supply and an adapter board to enable power supply and signal control for the LED module 10.

[0061] In the technical solution of this invention, the housing assembly 50 provides a supporting and protective foundation for the LED module 10, and the control module 60, as the control core of the display, is built into the housing assembly 50. The LED module 10 is mounted on the front of the housing assembly 50, and its first interface 13 on the back passes through the first clearance hole 521 on the housing assembly 50, extends into the interior of the housing assembly 50, and plugs into the control module 60. This structure achieves a separate layout for the front display and the back electrical connection of the LED module 10, which is beneficial for realizing large-screen display of the LED display device 100, and at the same time facilitates the maintenance and repair of the electrical connection.

[0062] Reference Figures 1 to 20 In one embodiment of the present invention, the housing assembly 50 includes a housing 51, a cover 52 and a first sealing member 531. A storage groove 511 is recessed on one side of the housing 51 to accommodate the control module 60. The cover 52 covers the opening of the storage groove 511 and has a first clearance hole 521 communicating with the storage groove 511. The first clearance hole 521 is used for the LED module 10 to pass through and forms a sealing fit with the LED module 10. The first sealing member 531 is disposed between the storage shell 51 and the cover 52 and is circumferentially disposed around the edge of the opening of the storage groove 511.

[0063] The housing 51 and the cover 52 enclose a storage space for storing the control module 60. The first sealing element 531 is an annular sealing element disposed between the mating surfaces of the housing 51 and the cover 52, and is continuously arranged around the edge of the opening of the storage groove 511 to prevent moisture from seeping in from the joint gap between the housing 51 and the cover 52.

[0064] In this embodiment, the storage groove 511 provides a space for the control module 60. The cover 52 is placed over the opening of the storage groove 511, enclosing the control module 60 inside the storage groove 511. The first sealing member 531 is arranged around the edge of the opening of the storage groove 511, filling the assembly gap between the storage shell 51 and the cover 52, forming a first sealing barrier, effectively preventing external moisture from seeping in from the peripheral joints of the shell assembly 50. At the same time, the first clearance hole 521 on the cover 52 is sealed to the LED module 10, forming a second sealing barrier, preventing moisture from entering the storage groove 511 from the penetration position of the LED module 10.

[0065] Therefore, this embodiment helps to prevent moisture from seeping in through the gaps in the housing assembly 50, so as to ensure the normal use of the control module 60, and thus ensure the service life of the LED display device 100 when it is displayed outdoors.

[0066] Optionally, the first sealing element 531 and other sealing elements of the present invention are made of a material that is both waterproof and elastic, such as silicone. The first sealing element 531 has a third connecting hole 5314, through which a fastener is inserted to install it onto the housing 51. The cover 52 has a support portion 525 protruding on the side facing the housing groove 511 to accommodate the installation of the control module 60.

[0067] Reference Figure 19 and Figure 20 In one embodiment of the present invention, the first sealing member 531 includes a first sub-component 5311 and a second sub-component 5312, which are spliced ​​together to form the first sealing member 531.

[0068] In this embodiment, the first sealing element 531 is divided into a first sub-part 5311 and a second sub-part 5312, which are spliced ​​together to form a complete sealing ring. This split design reduces the manufacturing difficulty and mold cost of the sealing element, and is particularly suitable for sealing requirements of large-size or irregularly shaped storage grooves 511.

[0069] Optionally, refer to Figure 19 The first sealing element 531 includes two I-shaped first sub-parts 5311 and two strip-shaped second sub-parts 5312. The two I-shaped first sub-parts 5311 are located on the left and right sides, and the two strip-shaped second sub-parts 5312 are located on the top and bottom sides, so as to splice together to form a rectangular sealing ring.

[0070] Reference Figure 20 In one embodiment of the present invention, one of the first sub-component 5311 and the second sub-component 5312 is recessed with a docking groove 53131, and the other is protruding with a docking portion 53132, wherein the docking portion 53132 is inserted into the docking groove 53131.

[0071] In this embodiment, the first sub-component 5311 and the second sub-component 5312 are spliced ​​together by the insertion and engagement of the mating part 53132 and the mating groove 53131, which ensures the tight connection between the two at the splicing point and also helps to improve assembly efficiency.

[0072] Reference Figure 10 and Figure 15 In one embodiment of the present invention, the opening edge of the storage groove 511 is recessed with a first groove 512, and one side of the cover 52 is provided with a first protrusion 522, which is inserted into the first groove 512.

[0073] In this embodiment, the interlocking fit between the first groove 512 and the first protrusion 522 forms a labyrinthine sealing path between the housing 51 and the cover 52. When external moisture attempts to seep in from the joint between the housing 51 and the cover 52, it must bypass the tortuous channel formed by the first protrusion 522 and the first groove 512, greatly increasing the length and difficulty of the moisture penetration path, thereby significantly improving the sealing effect. At the same time, the fit between the first protrusion 522 and the first groove 512 also plays a positioning and guiding role, ensuring that the cover 52 can be accurately positioned during assembly, improving assembly efficiency and consistency.

[0074] Optionally, the first groove 512 is continuously provided along the opening edge of the receiving groove 511, and the first protrusion 522 is correspondingly continuously provided to form a complete annular sealing barrier. The depth and width of the first groove 512 can be designed according to the sealing requirements; a deeper groove combined with a longer protrusion can achieve a better sealing effect.

[0075] Reference Figure 10 and Figure 14 In one embodiment of the present invention, the housing assembly 50 further includes a second sealing member 532, which is disposed on the bottom wall of the first groove 512 and abuts against the first protrusion 522.

[0076] In this embodiment, when the first protrusion 522 is inserted into the first groove 512, the end of the first protrusion 522 presses against the second seal 532, causing the second seal 532 to be compressed and deformed, thereby forming a reliable sealing interface between the first protrusion 522 and the bottom wall of the first groove 512. This design adds a sealing barrier to the labyrinth seal, effectively blocking any possible water seepage paths along the end face of the first protrusion 522, further improving the waterproof performance.

[0077] Reference Figure 14 In one embodiment of the present invention, the storage shell 51 is provided with a second clearance hole 514, and the second clearance hole 514 is provided with a waterproof connector for connecting to an external cable.

[0078] In this embodiment, the second clearance hole 514 is connected to an external cable via a waterproof connector, thereby achieving electrical connection between the inside and outside of the storage slot 511. Optionally, after the waterproof connector and the external cable are assembled, the second clearance hole 514 is further sealed by potting adhesive.

[0079] Reference Figure 10 and Figure 18 In one embodiment of the present invention, the cover member 52 is further provided with a second protrusion 523 that is spaced apart from the first protrusion 522. The second protrusion 523 is located inside the first protrusion 522 and is inserted into the storage groove 511.

[0080] In this embodiment, the second protrusion 523 and the first protrusion 522 are spaced apart to form a double-insertion sealing structure. When the cover 52 is closed, the second protrusion 523 is inserted into the receiving groove 511, while the first protrusion 522 is inserted into the first groove 512 at the edge of the opening of the receiving groove 511. This double-protrusion structure further extends the permeation path of water vapor. At the same time, after the second protrusion 523 is inserted into the receiving groove 511, its sidewall forms a close contact with the inner wall of the receiving groove 511, forming a multi-layer sealing barrier between the cover 52 and the receiving shell 51. In addition, the second protrusion 523 can also play a limiting role, preventing the cover 52 from shifting laterally when subjected to external force, and ensuring the uniformity of pressure on the first seal 531 and the second seal 532.

[0081] Reference Figure 10 and Figure 16 In one embodiment of the present invention, the housing assembly 50 further includes a third sealing member 533, which is located on the side of the cover 52 away from the storage shell 51 and is circumferentially disposed around the opening edge of the first clearance hole 521.

[0082] In this embodiment, after the LED module 10 passes through the first clearance hole 521, the third sealing member 533 is clamped between the LED module 10 and the cover member 52, forming a sealing barrier located outside the storage groove 511. This design seals the joint between the LED module 10 and the cover member 52 in advance, cutting off external moisture before it reaches the first clearance hole 521, greatly reducing the risk of moisture seeping into the storage groove 511 through the LED module 10's penetration point. The third sealing member 533 and the first sealing member 531 are respectively located on the inner and outer sides of the cover member 52, forming a double sealing protection for the storage groove 511, effectively improving the overall waterproof performance of the product.

[0083] Reference Figure 10 and Figure 16In one embodiment of the present invention, the first clearance hole 521 is provided with a second groove 524 around its periphery away from the storage shell 51. The second groove 524 is located between the first clearance hole 521 and the third sealing member 533. The bottom wall of the second groove 524 is provided with a fourth sealing member 534.

[0084] Among them, the LED module 10 is provided with a cover pressing member 14 on the side facing the cover member 52, and a third protrusion 141 is provided on the cover pressing member 14.

[0085] In this embodiment, when the LED module 10 is installed on the cover 52, the fourth seal 534 is deformed by the pressure of the third protrusion 141 of the cover 14, tightly filling the gap between the third protrusion 141 and the second groove 524. This embedded sealing design allows the fourth seal 534 to form a tight surface contact with the LED module 10 and the cover 52 after being pressed, further enhancing the sealing effect at the first clearance hole 521. The fourth seal 534 and the third seal 533 work together to form a double sealing guarantee around the first clearance hole 521. Even if one layer of sealing fails, the other layer can still maintain the waterproof function, significantly improving the reliability of the product.

[0086] In summary, the core technical solutions of the LED module 10 and LED display device 100 of the present invention cover three dimensions: carrier plate 1 splicing, waterproofing, and front maintenance. In terms of carrier plate 1 splicing, the existing array first through hole 11 of the carrier plate 1 is used as the installation channel. The first connector 31 spans the adjacent carrier plate 1 and cooperates with the first fastener 35 to achieve efficient splicing with "one-click locking". The second through hole 312 overlaps and penetrates the first through hole 11. The second connector 32 with a third through hole 322 is set at the cross splicing point to effectively suppress the warping deformation of the carrier plate 1 and ensure the flatness of the large-area splicing.

[0087] Regarding the waterproofing of the LED display device 100, the housing assembly 50 forms a multi-layered sealing barrier along the entire path from the periphery of the housing to the insertion position of the LED module 10 through a labyrinthine interlocking seal between the first seal 531 and the cover 52, the second seal 532 on the bottom wall of the first groove 512, the insertion structure of the second protrusion 523 on the inner side of the cover 52, and the double pressure seal of the third seal 533 and the fourth seal 534 at the first clearance hole 521. This effectively ensures the waterproof reliability during outdoor use.

[0088] Meanwhile, the outer surface of the LED module 10 is coated with a potting layer 15, which makes the LED module 10 waterproof, thus contributing to the waterproof performance of the entire LED display device 100.

[0089] For front maintenance of the LED display device 100, the first fastener 35 can be loosened and removed from the front side of the LED display device 100 to allow for the removal of each carrier board 1 from the front. Furthermore, the first interface 13 of the carrier board 1 directly plugs into and engages with the second interface 61 of the control module 60, enabling convenient front maintenance operations.

[0090] Therefore, this invention achieves a balance between splicing efficiency, optical display effect, structural strength and high-level waterproof protection, making it suitable for large-screen display scenarios such as LED holographic screens, and applicable to product series such as right-angle screens or irregular-shaped screens, while also meeting the requirements for normal outdoor use.

[0091] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An LED module, characterized in that, include: At least two carrier plates are provided, with two adjacent carrier plates spliced ​​together, and each carrier plate has a first through hole arranged in an array; Multiple LEDs are arranged in an array in the solid area of ​​each of the carrier plates; The first connector is located on the side of the carrier plate away from the lamp bead and has at least two first connection holes. Multiple first fasteners are sequentially inserted into the first through hole and the first connecting hole to connect two adjacent carrier plates.

2. The LED module as described in claim 1, characterized in that, The first connector also has a second through hole, which is spaced apart from the first connector hole and overlaps with the first through hole.

3. The LED module as described in claim 1, characterized in that, Multiple first connectors are provided along the vertical direction, and the multiple first connectors are spaced apart to connect to two adjacent carrier plates respectively.

4. The LED module as described in claim 3, characterized in that, The carrier plate is provided with at least three in the horizontal direction, and the first connector is provided with multiple in the direction parallel to the splicing direction of the carrier plate. The multiple first connectors are arranged at intervals to be connected to each of the carrier plates in the horizontal direction in sequence.

5. The LED module as described in claim 1, characterized in that, The carrier plate has at least two rows in the horizontal direction and at least two rows in the vertical direction; The LED module also includes a second connector and a plurality of second fasteners. The second connector is located at the splicing point of four circumferentially adjacent carrier plates and is spaced apart from the first connector. The second connector has a second connecting hole on each of its four sides. The second fasteners are sequentially inserted through the first through hole and the second connecting hole to connect the four circumferentially adjacent carrier plates.

6. The LED module as described in claim 5, characterized in that, The second connector has a third through hole in the middle, which is located between each of the second connector holes and overlaps with the first through hole of the carrier plate.

7. The LED module as described in any one of claims 1 to 6, characterized in that, The LED module also includes a potting layer, which is coated on the surface of the carrier board and the LED beads. The potting layer is made of a transparent material.

8. The LED module as described in any one of claims 1 to 6, characterized in that, The carrier plate has fastening holes spaced apart from the lamp beads to securely connect to the housing assembly.

9. The LED module as described in claim 8, characterized in that, The carrier plate has a first interface on the side opposite to the lamp bead, for insertion into the control module inside the housing assembly.

10. An LED display device, characterized in that, include: The housing assembly has a first clearance hole. The control module is located within the housing assembly; The LED module as described in any one of claims 1 to 9 is mounted on one side of the housing assembly and partially passes through the first clearance hole for electrical connection to the control module.

11. The LED display device as claimed in claim 10, characterized in that, The housing assembly includes a housing, a cover and a first seal, wherein a storage groove is recessed on one side of the housing to accommodate the control module. The cover is provided over the opening of the storage slot and has a first clearance hole that communicates with the storage slot. The first clearance hole is used for the LED module to pass through and forms a sealing fit with the LED module. The first sealing member is provided between the storage shell and the cover and is circumferentially arranged around the edge of the opening of the storage slot.

12. The LED display device as claimed in claim 11, characterized in that, The opening edge of the storage slot is recessed with a first groove, and one side of the cover is protruded with a first protrusion, which is inserted into the first groove. And / or, the housing assembly further includes a second seal disposed on the bottom wall of the first groove and abutting against the first protrusion.

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