Seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen

Abstract

The present application relates to the technical field of LED display screen, in particular to a seamless splicing and high refresh rate superfine pixel immersive LED display screen, which comprises a display screen box body, a splicing frame for seamless splicing, a locking buckle, and a display screen rear cover. The cantilever plate drives the shaking pendulum ball to continuously collide with the stress plate, and then the stress plate transmits the vibration to the dustproof plate to cause the dustproof plate to vibrate, thereby achieving the dust removal effect. Dust blocking the heat dissipation holes will hinder the flow of air, reduce heat dissipation, and cause the internal temperature of the display screen to rise. The high temperature may cause damage to the internal components of the display screen, shorten the service life of the display screen, and reduce the risk of component damage. The vibration dust removal can effectively reduce the temperature inside the display screen, prolong the service life of the display screen, improve the use efficiency, and reduce the cost.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, specifically to an immersive LED display with seamless splicing and a high refresh rate and ultra-fine pixels. Background Technology

[0002] LED displays are a type of display screen that has developed rapidly in modern times. They are composed of multiple interconnected tiny LED module panels and can display various functions such as text, images, and videos. LED electronic displays integrate microelectronics technology, computer technology, and information processing. They have advantages such as clear colors, simple operation, long lifespan, and diverse application environments.

[0003] Existing LED displays still have the following drawbacks:

[0004] 1. Installing an LED display screen requires professional technology and equipment. Otherwise, it is easy to install it insecurely or in the wrong position. Incorrect installation may cause the display screen to be not properly fixed or connected, thereby affecting the display effect and reliability, and causing problems or damage to the display screen during use.

[0005] 2. Due to their large size and weight, the display screen cannot be fully protected during transportation and installation. It is susceptible to factors such as temperature, humidity, water, and dust, which can reduce the efficiency of the display screen, shorten its service life, and increase the cost of later maintenance.

[0006] 3. Currently, most LED displays are assembled by splicing multiple LED modules together with bolts. This assembly method is very troublesome during subsequent disassembly, and gaps are easily left between the modules after splicing, which greatly reduces the overall display effect of the LED screen.

[0007] Therefore, this invention proposes a seamless splicing and high refresh rate ultra-fine pixel immersive LED display to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen, which can effectively solve the technical problems of LED display screens being prone to incorrect installation, dust protection during transportation and installation, and low assembly efficiency.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] This invention discloses a seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen, including a display screen housing, a splicing frame for seamless splicing, locking buckles, a display screen back cover, a magnetic strip at the bottom of the inner cavity of the display screen housing, a groove at the top of the outer surface of the display screen housing, a magnetic block in the groove at the top of the display screen housing, the display screen housing and the splicing frame being snapped together by the magnetic strip, recesses and protrusions on both sides of the inner wall of the splicing frame, the two sides of the display screen housing being snapped together with the two sides of the inner wall of the splicing frame by corresponding recesses and protrusions, the top of the display screen housing being fixedly connected to the locking buckle by the magnetic block, a display screen back cover being provided on the outer side of the inner wall of the display screen housing, a heat dissipation hole vibration dust removal mechanism being provided at the upper and lower edges of the inner side of the display screen back cover for dust removal of the heat dissipation holes, and an installation positioning self-checking mechanism being provided on the top of the inner wall of the display screen housing for self-checking whether the display screen installation is accurate;

[0011] The heat dissipation hole vibration dust removal mechanism is used to clean the heat dissipation holes opened on the rear side wall of the display screen back cover, thereby improving the service life of the display screen. The installation positioning self-test mechanism is used to check whether the installation position of the display screen back cover is accurate, thereby preventing dust from entering.

[0012] Preferably, the heat dissipation hole vibration dust removal mechanism includes a positioning plate disposed on the upper and lower edges of the back cover of the display screen. A limit block is fixedly connected to the bottom of the positioning plate, and a cantilever plate is slidably connected to both sides of the limit block. A square straight plate is provided at the bottom of the cantilever plate, and a snap-fit ​​component is provided on both sides of the cantilever plate. A tension spring is fixedly connected to the top of the inner side of the limit block, and the lower end of the tension spring is fixedly connected to the bottom of the cantilever plate. A wobbling ball is fixedly connected to the right side of the cantilever plate, and a movable buckle is movably connected to the bottom of the cantilever plate. The movable buckle movably engages with a pivot buckle, and the front end of the wobbling ball contacts a force plate. The force plate is movably connected to a pre-drilled hole above the fixed slot.

[0013] Preferably, the limiting block has square through slots on both sides, the cantilever plate has snap-fit ​​parts on both sides that engage with the square through slots of the limiting block, the fixing slot is a right-angled slot, the fixing slot has a square reserved hole above it, the force plate has a square straight rod at the bottom and a rectangular panel at the top, and the force plate has a matrix of circular wave protrusions on the side near the swaying pendulum.

[0014] Preferably, the installation positioning self-testing mechanism includes a support fixedly connected to the top of the inner wall of the display screen cabinet. The support is equipped with a compression spring. The upper part of the compression spring is fixedly connected to the top of the inner wall of the display screen cabinet. The lower part of the compression spring is fixedly connected to a movable shaft block. The lower end of the movable shaft block is rotatably connected to a connecting rod. The lower end of the connecting rod is movably connected to a fixed bearing. A rotating cylinder is sleeved in the middle of the fixed bearing. A rotating rod is fixedly connected to the inner side of the middle of the rotating cylinder. A dustproof plate is fixedly connected to the side of the rotating rod away from the inner cavity.

[0015] Preferably, the connecting rod is a cylindrical long rod, and both ends of the connecting rod are provided with movable shafts, with the upper movable shaft of the connecting rod being movably connected to the movable shaft block.

[0016] Preferably, the dustproof plate is fixedly connected to the rotating rod, and the dustproof plate rotates axially as the rotating rod rotates. The dustproof plate is made of aluminum alloy.

[0017] Preferably, the installation positioning self-testing mechanism further includes a rotating shaft, a metal sheet, and a rotating buckle. The metal sheet is fixedly connected to the upper end of the rotating shaft and is located between the compression spring and the movable shaft block. The upper end of the metal sheet is fixedly connected to the lower end of the compression spring, and the lower end of the metal sheet is fixedly connected to the movable shaft block. The inner side of the metal sheet is movably connected to the rotating buckle. The rotating buckle can be flipped up and down around the connection point between the rotating buckle and the metal sheet. The support has an opening on the same side as the rotating buckle, and the size of the support opening is the same as the size of the rotating buckle.

[0018] Preferably, the dustproof plate is stacked with the back cover of the display screen, and both the dustproof plate and the back cover of the display screen are square perforated plates. The positions of the perforations of the dustproof plate and the back cover of the display screen are staggered from left to right, and the perforations are closed when the dustproof plate and the back cover of the display screen are stacked.

[0019] Preferably, the fixed bearing is movably connected to both the upper and lower sides with connecting rods, so that the upper and lower connecting rods drive the fixed bearing to move horizontally inward.

[0020] Compared with known public technologies, the technical solution provided by this invention has the following beneficial effects:

[0021] 1. This invention utilizes a cantilever plate to drive a swaying pendulum ball to continuously collide with a force plate. The force plate then transmits the force to a dustproof plate, causing the dustproof plate to vibrate. This vibration of the dustproof plate achieves a dust removal effect. Dust clogging the heat dissipation holes hinders airflow, reduces heat dissipation, and causes the internal temperature of the display screen to rise. Excessive temperature may damage the internal components of the display screen and shorten its lifespan. Vibration dust removal can effectively reduce the internal temperature of the display screen, reduce the risk of component damage, and extend the lifespan of the display screen. It can remove dust, enhance airflow, improve heat dissipation efficiency, maintain the normal operating temperature of the display screen, thereby extending the lifespan of the display screen, improving efficiency, and reducing costs.

[0022] 2. This invention utilizes magnetic blocks, movable shaft blocks, and connecting rods to control the forward and backward movement of the dustproof plate, ensuring that the heat dissipation holes of the display screen are closed before installation. This reduces dust accumulation during transportation and allows verification of correct installation by checking whether the heat dissipation holes are open. Accurate display screen installation optimizes display effects, reduces visual discomfort, improves reliability and stability, enhances safety, and reduces maintenance and repair costs. Ensuring accurate installation of the display screen is crucial for achieving optimal performance and long-term reliable operation.

[0023] 3. This invention uses splicing frames and magnetic / slot-based methods to assemble the display screen. When a module malfunctions, only that module needs to be replaced without disassembling the entire screen. In contrast, bolt-mounted display screens may require more complex operations to repair or replace faulty modules. Frame-mounted display screens typically use a thinner outer frame design, which is beneficial for the compact layout and installation of the display screen. In contrast, bolt-mounted display screens may require a wider frame and meticulous adjustments, which may have a significant impact on the overall thickness and weight of the display screen. Attached Figure Description

[0024] The invention is further described with reference to embodiments illustrated in the following figures, wherein:

[0025] Figure 1 This is a front-view perspective structural diagram of the present invention;

[0026] Figure 2 This is a side view of the internal structure of the display screen cabinet in this invention;

[0027] Figure 3 This is a southwest isometric structural diagram of the internal structure of the display screen cabinet in this invention;

[0028] Figure 4 This is an isometric structural diagram of the internal structure of the display screen cabinet in this invention.

[0029] Figure 5 This is a rear view structural diagram of the display screen back cover of the present invention;

[0030] Figure 6 For the present invention Figure 3 A magnified 3D structural diagram of a portion of point A in the middle;

[0031] Figure 7 For the present invention Figure 4 A magnified 3D structural diagram of a portion of point B in the middle;

[0032] Figure 8 For the present invention Figure 7 A magnified three-dimensional structural diagram of a portion of point C.

[0033] The labels in the diagram represent:

[0034] 1. Display screen cabinet; 11. Splicing frame; 12. Locking clips; 13. Display screen back cover;

[0035] 2. Heat dissipation hole vibration dust removal mechanism; 21. Positioning plate; 22. Limiting block; 23. Cantilever plate; 24. Tension spring; 25. Movable buckle; 26. Shaft-moving buckle; 27. Swinging pendulum; 28. Force plate; 29. ​​Fixed slot;

[0036] 3. Installation positioning self-checking mechanism; 31. Support; 32. Compression spring; 33. Moving shaft block; 34. Connecting rod; 35. Fixed bearing; 36. Rotating cylinder; 37. Rotating rod; 38. Dustproof plate; 3301. Rotating shaft; 3302. Metal sheet; 3303. Rotating buckle. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] The present invention will be further described below with reference to embodiments.

[0039] Embodiments of the present invention

[0040] refer to Figure 1As shown, a seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen includes a display screen housing 1 and a splicing frame 11, locking buckles 12, a display screen back cover 13, a magnetic strip at the bottom inside the display screen housing 1, a groove at the top of the outer surface of the display screen housing 1, a magnetic block in the groove at the top of the display screen housing 1, and notches and protrusions on both sides of the inner wall of the splicing frame 11. The display screen housing 1 and the splicing frame 11 are interlocked with each other through the notches and protrusions. The magnetic strip at the bottom of the display screen housing 1 is responsible for installation and positioning, that is, the display screen housing 1 is interlocked with the splicing frame 11 from top to bottom. The positioning of the display screen housing 1 by the magnetic strip at the bottom and the magnetic block at the top can achieve the splicing process of the display screen housing 1.

[0041] refer to Figure 1 As shown, the two sides of the display cabinet 1 are connected to the two sides of the inner wall of the splicing frame 11 through corresponding notches and protrusions. The top of the display cabinet 1 is fixedly connected to the locking buckle 12 by magnetic blocks. The outer side of the inner wall of the display cabinet 1 is provided with a display back cover 13.

[0042] Given the aforementioned seamless splicing and high refresh rate ultra-fine pixel immersive LED display, the specific implementation can be as follows:

[0043] refer to Figure 1 and Figure 2 , Figure 3 , Figure 4 As shown, the upper and lower edges of the inner side of the display screen back cover 13 are provided with a heat dissipation hole vibration dust removal mechanism 2 for dust removal of the heat dissipation holes. The top of the inner wall of the display screen housing 1 is provided with an installation positioning self-testing mechanism 3 for self-checking whether the display screen is installed accurately. The heat dissipation hole vibration dust removal mechanism 2 is used to clean the heat dissipation holes opened on the rear side wall of the display screen back cover 13, thereby improving the service life of the display screen.

[0044] refer to Figure 6 As shown, the heat dissipation hole vibration dust removal mechanism 2 includes a positioning plate 21 set at the upper and lower edges of the display screen back cover 13. A limiting block 22 is fixedly connected to the bottom of the positioning plate 21. A cantilever plate 23 is slidably connected to both sides of the limiting block 22. A square straight plate is provided at the bottom of the cantilever plate 23. A snap-fit ​​is provided on both sides of the cantilever plate 23. A tension spring 24 is fixedly connected to the top of the inner side of the limiting block 22. The lower end of the tension spring 24 is fixedly connected to the bottom of the cantilever plate 23. A swaying pendulum ball 27 is fixedly connected to the right side of the cantilever plate 23. A movable buckle 25 is movably connected to the bottom of the cantilever plate 23. The movable buckle 25 is movably snapped to a shaft-moving buckle 26. The front end of the swaying pendulum ball 27 contacts a force plate 28. The force plate 28 is movably connected to a pre-reserved hole above the fixed slot 29.

[0045] refer to Figure 6As shown, square through slots are opened on both sides of the limiting block 22. The snap-fit ​​parts on both sides of the cantilever plate 23 engage with the square through slots of the limiting block 22. The fixing slot 29 is a right-angled slot. A square reserved hole is opened above the fixing slot 29. The lower part of the force plate 28 is a square straight rod and the upper part is a rectangular panel. The side of the force plate 28 near the swinging ball 27 is provided with circular wave protrusions arranged in a matrix. The swinging ball 27 continuously shakes and collides with the wave surface of the force plate 28, causing the force plate 28 to vibrate under force. The force plate 28 drives the fixedly connected dustproof plate 38 to vibrate together. The dust on the dustproof plate 38 falls off through vibration to achieve the dust removal effect and extend the service life of the display screen.

[0046] refer to Figure 4 As shown, an installation positioning self-test mechanism 3 is provided on the top of the inner wall of the display cabinet 1. The installation positioning self-test mechanism 3 is used to check whether the installation position of the display back cover 13 is accurate, thereby preventing dust from entering.

[0047] refer to Figure 7 As shown, the installation positioning self-testing mechanism 3 includes a support 31 fixedly connected to the top of the inner wall of the display screen housing 1. The support 31 is equipped with a compression spring 32. The upper part of the compression spring 32 is fixedly connected to the top of the inner wall of the display screen housing 1. The lower part of the compression spring 32 is fixedly connected to a movable shaft block 33. The lower end of the movable shaft block 33 is rotatably connected to a connecting rod 34. The lower end of the connecting rod 34 is movably connected to a fixed bearing 35. A rotating cylinder 36 is sleeved in the middle of the fixed bearing 35. A rotating rod 37 is fixedly connected to the inner side of the middle of the rotating cylinder 36. A dustproof plate 38 is fixedly connected to the side of the rotating rod 37 away from the inner cavity.

[0048] refer to Figure 7 As shown, the connecting rod 34 is a cylindrical long rod with movable shafts at both ends. The movable shaft at the upper end of the connecting rod 34 is movably connected to the movable shaft block 33. The dustproof plate 38 is fixedly connected to the rotating rod 37. The dustproof plate 38 rotates axially as the rotating rod 37 rotates. The dustproof plate 38 is made of aluminum alloy, which has the advantages of being lightweight and not easily corroded.

[0049] refer to Figure 8As shown, the installation positioning self-testing mechanism 3 also includes a rotating shaft 3301, a metal sheet 3302, and a rotating buckle 3303. The metal sheet 3302 is fixedly connected to the upper end of the rotating shaft 3301. The metal sheet 3302 is located between the compression spring 32 and the moving shaft block 33. The upper end of the metal sheet 3302 is fixedly connected to the lower end of the compression spring 32, and the lower end of the metal sheet 3302 is fixedly connected to the moving shaft block 33. The inner side of the metal sheet 3302 is movably connected to the rotating buckle 3303. The rotating buckle 3303 can be flipped up and down around the connection between the rotating buckle 3303 and the metal sheet 3302. The support 31 has an opening on the same side as the rotating buckle 3303. The size of the opening of the support 31 is the same as the size of the rotating buckle 3303.

[0050] refer to Figure 2 and Figure 5 As shown, the dustproof plate 38 is stacked with the display screen back cover 13. Both the dustproof plate 38 and the display screen back cover 13 are square perforated plates. The positions of the perforations of the dustproof plate 38 and the display screen back cover 13 are staggered from left to right. When the dustproof plate 38 and the display screen back cover 13 are stacked, the perforations are closed. The closed state can reduce dust intrusion and improve the dustproof effect before use.

[0051] refer to Figure 4 As shown, the fixed bearing 35 is movably connected to both the upper and lower sides by connecting rods 34, which causes the upper and lower connecting rods 34 to drive the fixed bearing 35 to move horizontally inward. The horizontal movement ensures that the dustproof plate 38 remains horizontal and vertical in a stationary state, allowing for better air circulation inside the chassis and improving the chassis's heat dissipation efficiency.

[0052] The complete working principle and steps of the above embodiments are as follows:

[0053] Initial limitations: see reference Figure 2 As shown, the dustproof plate 38 is completely attached to the back cover 13 of the display screen, the heat dissipation holes of the back cover 13 of the display screen are closed, the compression spring 32 is not compressed, the moving shaft block 33 is located at the farthest point from the top of the inside of the display screen housing 1, the movable buckle 25 and the shaft buckle 26 are locked together, the tension spring 24 is stretched, the limit block 22 is located at the farthest point from the positioning plate 21, the front end of the swinging ball 27 is in contact with the force plate 28 and is stationary, the fixed bearing 35 is located at the farthest point from the inner wall of the display screen housing 1, and the connecting rod 34 is tilted.

[0054] When using:

[0055] Installation alignment self-test steps:

[0056] For reference Figure 1 , Figure 4As shown, firstly, the staff places the display cabinet 1 into the splicing frame 11 from top to bottom, then aligns the magnetic blocks and magnetic strips, and uses the locking buckle 12 to fix the magnetic blocks. At this time, the metal sheet 3302 is attracted by the magnetic blocks and magnetic strips and moves vertically in the attraction direction. The metal sheet 3302 drives the moving shaft block 33 to move vertically in the attraction direction, causing the compression spring 32 to be squeezed. The rotating buckle 3303 slides vertically into the reserved slot of the support 31 along with the metal sheet 3302. At this time, the rotating buckle 3303 rotates axially to fix the position of the metal sheet 3302. When the moving shaft block 33 moves upward with the rotating buckle 3303, it also drives the connecting rod 34 to gradually move from an inclined state to a vertical state. When the connecting rods 34 at both ends move to a vertical state at the same time, they drive the fixed bearing 35 to move horizontally towards the inner wall of the display cabinet 1. Also, because the rotating cylinder 36 and the rotating... The rotating rod 37 is sleeved on the fixed bearing 35. Ultimately, the rotating rod 37 drives the dustproof plate 38 to move horizontally towards the inner wall of the display screen cabinet 1, which is restricted by the fixed slot 29. This creates a space between the dustproof plate 38 and the display screen back cover 13, and the dustproof plate 38 and the display screen back cover 13 are no longer in a close fit. At this time, the heat dissipation holes of the display screen back cover 13 are open and can dissipate heat. Therefore, the installation can be checked by whether the heat dissipation holes of the display screen back cover 13 are open. The installation of the display screen is more convenient for later maintenance and management. If it is necessary to debug or replace a display screen, the corresponding position can be quickly found according to the alignment reference line or marker, reducing the complexity of operation and time cost. At the same time, it can avoid screen content offset or misalignment, which reduces the viewing experience, affects the information transmission and display effect, or makes the information not fully displayed, reducing the effect of the viewer obtaining information and causing confusion or misunderstanding.

[0057] Vibration dust removal steps:

[0058] For reference Figure 6As shown, when the dustproof plate 38 moves horizontally towards the inner wall of the display screen housing 1 due to the restriction of the fixed slot 29, the dustproof plate 38 will drive the pivot buckle 26 and the force plate 28 to move simultaneously. At this time, the locking state between the pivot buckle 26 and the movable buckle 25 is released, and the cantilever plate 23 connected to the movable buckle 25 is contracted by the tension spring 24 and moves vertically upward. The wobbling ball 27 fixedly connected to the cantilever plate 23 on the right side will also move vertically upward. Because the wobbling ball 27 is in contact with the force plate 28, the front end of the wobbling ball 27 will continuously collide with the force plate 28 due to the influence of the spring, causing the force plate 28 to drive the dustproof plate 38 to shake violently around the rotating rod 37 to achieve dust removal. The dustproof plate 38 is made of aluminum alloy. Using aluminum alloy as the dustproof material can reduce the overall weight, reduce the load on the equipment, and facilitate installation and handling. However, under the restriction of the internal spring of the rotating rod 37, the dustproof plate 38 will eventually return to a vertical state, which will not affect the heat dissipation effect of the heat dissipation holes of the display screen back cover 13. This is beneficial to effectively keep the equipment clean, extend the equipment life, improve the equipment stability, and reduce the amount of cleaning work. This has a positive impact on providing high-quality image and content display, reducing maintenance costs and improving user experience. At the same time, it can also maintain the ventilation and heat dissipation inside the equipment, improve the stability and working efficiency of the equipment.

[0059] Use complete:

[0060] When the display screen needs to be disassembled and reinstalled after this use, simply remove the magnetic blocks and strips on the top and bottom sides. After the metal sheet 3302 loses its magnetic attraction, the internal compression spring 32 will push the metal sheet 3302 away from the top of the display screen cabinet 1 due to compression. At this time, press the dustproof plate 38 against the inner wall of the display screen cabinet 1 to make the metal sheet 3302 move upward slightly. Then, rotate the buckle 3303 to reverse downward naturally and release the locking buckle so that the dustproof plate 38 returns to its initial position. Then, re-lock the movable buckle 25 and the pivot buckle 26 to complete the dustproof protection of the heat dissipation holes of the display screen back cover 13. This facilitates the next installation and transportation, reduces manpower and financial resources, lowers transportation costs and maintenance expenses, and improves the cost performance of the display screen.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen, comprising a display screen housing (1) and a splicing frame (11), a locking buckle (12), and a display screen back cover (13) for seamless splicing, wherein the bottom of the inner cavity of the display screen housing (1) is provided with a magnetic strip, the top of the outer surface of the display screen housing (1) is provided with a groove, a magnetic block is provided in the groove at the top of the display screen housing (1), the display screen housing (1) and the splicing frame (11) are connected by the magnetic strip, the inner walls of the splicing frame (11) are provided with notches and protrusions on both sides, the two sides of the display screen housing (1) are connected to the two sides of the inner walls of the splicing frame (11) by corresponding notches and protrusions, the top of the display screen housing (1) is fixedly connected to the locking buckle (12) by a magnetic block, and a display screen back cover (13) is provided on the outer side of the inner wall of the display screen housing (1), characterized in that, The upper and lower edges of the inner side of the back cover (13) of the display screen are provided with a heat dissipation hole vibration dust removal mechanism (2) for dust removal of the heat dissipation holes. The top of the inner wall of the display screen housing (1) is provided with an installation positioning self-testing mechanism (3) for self-testing whether the display screen installation is accurate. The heat dissipation hole vibration dust removal mechanism (2) is used to clean the heat dissipation holes opened on the back wall of the display screen back cover (13), thereby improving the service life of the display screen. The installation positioning self-test mechanism (3) is used to check whether the installation position of the display screen back cover (13) is accurate, thereby preventing dust from entering. The heat dissipation hole vibration dust removal mechanism (2) includes a positioning plate (21) located at the upper and lower edges of the back cover (13) of the display screen. A limiting block (22) is fixedly connected to the bottom of the positioning plate (21). A cantilever plate (23) is slidably connected to both sides of the limiting block (22). A square straight plate is provided at the bottom of the cantilever plate (23). A snap-fit ​​component is provided on both sides of the cantilever plate (23). A tension spring (24) is fixedly connected to the top of the inner side of the limiting block (22). The lower end of the tension spring (24) is fixedly connected to the bottom of the cantilever plate (23). A swaying pendulum ball (27) is fixedly connected to the right side of the cantilever plate (23). A movable buckle (25) is movably connected to the bottom of the cantilever plate (23). The movable buckle (25) is movably engaged with a shaft-moving buckle (26). The front end of the swaying pendulum ball (27) contacts a force plate (28). The force plate (28) is movably connected to a pre-drilled hole above the fixed slot (29). The limiting block (22) has square through slots on both sides. The cantilever plate (23) has snap-fit ​​parts on both sides that engage with the square through slots of the limiting block (22). The fixing slot (29) is a right-angled slot. A square reserved hole is opened above the fixing slot (29). The lower part of the force plate (28) is a square straight rod and the upper part is a rectangular panel. The side of the force plate (28) near the swaying pendulum ball (27) is provided with circular wave protrusions arranged in a matrix.

2. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 1, characterized in that, The installation positioning self-testing mechanism (3) includes a support (31) fixedly connected to the top of the inner wall of the display screen cabinet (1). The support (31) is provided with a compression spring (32). The upper part of the compression spring (32) is fixedly connected to the top of the inner wall of the display screen cabinet (1). The lower part of the compression spring (32) is fixedly connected to a movable shaft block (33). The lower end of the movable shaft block (33) is rotatably connected to a connecting rod (34). The lower end of the connecting rod (34) is movably connected to a fixed bearing (35). A rotating cylinder (36) is sleeved in the middle of the fixed bearing (35). A rotating rod (37) is fixedly connected to the inner side of the middle of the rotating cylinder (36). A dustproof plate (38) is fixedly connected to the side of the rotating rod (37) away from the inner cavity.

3. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 2, characterized in that, The connecting rod (34) is a cylindrical long rod, and both ends of the connecting rod (34) are provided with movable shafts. The upper movable shaft of the connecting rod (34) is movably connected to the movable shaft block (33).

4. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 3, characterized in that, The dustproof plate (38) is a square straight plate. The dustproof plate (38) has air circulation holes that are offset from the left and right sides of the back cover (13) of the display screen. The dustproof plate (38) is made of aluminum alloy.

5. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 4, characterized in that, The installation positioning self-testing mechanism (3) also includes a rotating shaft (3301), a metal sheet (3302), and a rotating buckle (3303). The metal sheet (3302) is fixedly connected to the upper end of the rotating shaft (3301). The metal sheet (3302) is located between the compression spring (32) and the moving shaft block (33). The upper end of the metal sheet (3302) is fixedly connected to the lower end of the compression spring (32). The lower end of the metal sheet (3302) is fixedly connected to the moving shaft block (33). The inner side of the metal sheet (3302) is movably connected to the rotating buckle (3303). The rotating buckle (3303) can be flipped up and down with the connection between the rotating buckle (3303) and the metal sheet (3302) as the axis. The support (31) has an opening on the same side as the rotating buckle (3303). The opening size of the support (31) is the same as the size of the rotating buckle (3303).

6. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 5, characterized in that, The dustproof plate (38) is stacked with the display screen back cover (13). Both the dustproof plate (38) and the display screen back cover (13) are square perforated plates. The opening positions of the dustproof plate (38) and the display screen back cover (13) are staggered from left to right. When the dustproof plate (38) and the display screen back cover (13) are stacked, the holes are closed.

7. The seamless splicing and high refresh rate ultra-fine pixel immersive LED display screen according to claim 6, characterized in that, The fixed bearing (35) is movably connected to both the upper and lower sides by connecting rods (34).

Images