A display screen based on LED display panel

Abstract

A display screen based on an LED display panel belongs to the technical field of LED display screens. The present invention includes an LED display panel, longitudinal reference members arranged near the two sides of the back of a plurality of parallel-arranged LED display panels, and a splicing installation assembly provided between the longitudinal reference members and the mounting columns of two adjacent groups of LED display panels; the LED display panel includes a panel body, a display assembly provided on the panel body, and a plug-in panel provided on the back of the panel body, and a power control box is provided on the back of the same group of LED display panels; the splicing installation assembly includes a transverse reference member, and a tensioning member respectively connecting the two ends of the transverse reference member to the two adjacent longitudinal reference members, and the transverse reference member and the two adjacent longitudinal reference members are tightly held on the opposite sides of the mounting columns. The present invention uses an ultra-thin LED display panel as the minimum assembly unit to form a large screen, which has the advantages of being light and thin, flexible to use, easy to install and maintain, lower cost, and beautiful appearance.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and in particular to a display screen based on an LED display panel. Background Art

[0002] LED display is an actively controllable electroluminescent device with LED as the basic light source. It can display text, graphics, images and other information through the system's control processing unit. LED display uses a low-voltage scanning drive and has the advantages of low power consumption, low cost, high brightness, large viewing angle, long viewing distance, waterproof, and a variety of specifications. It can meet the needs of various application scenarios and has a very broad development prospect. It is recognized as the LED application market with the greatest growth potential and the fastest development.

[0003] Existing large-scale indoor and outdoor LED screens, such as Chinese utility model patent No. ZL201420685738.1, disclose an LED screen cabinet and an LED screen. The LED screen includes an LED screen cabinet and a display module mounted within the LED screen cabinet. Another example is Chinese utility model patent No. ZL201921475480.1, which discloses a screen cabinet, an LED screen, and an LED screen assembly structure. The LED screen includes LED modules, a power supply box, and a screen cabinet.

[0004] As mentioned above, because existing LED screens are assembled from multiple display units, which in turn require a cabinet as a carrier, the cabinet's structural strength requirements inevitably lead to its heavy weight. Consequently, existing LED screens suffer from the following drawbacks: 1. Their weight makes them inconvenient to transport, carry, install, and maintain; 2. The smallest assembly unit is the cabinet, and the size of the entire screen can only be adjusted based on the number of cabinets. Each cabinet contains several modules, making the screen's size adjustment inflexible; and cabinet sizes are generally standardized within the industry and difficult to change; 3. Costs are higher, with production, transportation, and installation and maintenance costs all increasing due to their weight; 4. Their appearance is bulky and aesthetically pleasing. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and provide a display screen based on LED display panels, which uses ultra-thin LED display panels as the minimum assembly unit to form a large screen, and has the advantages of being light and thin, flexible to use, easy to install and maintain, lower cost, and beautiful appearance.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A display screen based on LED display panels, comprising LED display panels, longitudinal reference members provided on the backs of a plurality of parallel-arranged LED display panels near both sides, and a splicing installation assembly provided between the longitudinal reference members and installation columns of two adjacent groups of LED display panels;

[0008] The LED display panel includes a panel body, a display component arranged on the panel body, and a plug-in panel arranged on the back of the panel body. A power control box is commonly provided on the back of the same group of LED display panels.

[0009] The splicing installation assembly includes a transverse reference member and tensioning members respectively connecting two ends of the transverse reference member and two adjacent longitudinal reference members. The transverse reference member and the two adjacent longitudinal reference members are tightly embraced on the opposite sides of the installation column.

[0010] As a preferred embodiment of the present invention, the panel body includes a mounting plate and a heat insulation plate arranged at intervals, and supporting ribs connecting the mounting plate and the heat insulation plate. A heat insulation guide cavity is formed between the mounting plate and the heat insulation plate, and heat guide and heat dissipation holes are provided on the opposite sides of the panel body.

[0011] As a preferred embodiment of the present invention, the panel body further includes two end plates integrally formed with the mounting plate and the heat insulation plate, and sealing members provided at the other two ends of the panel body; the diversion and heat dissipation holes are provided on the sealing members.

[0012] As a preferred embodiment of the present invention, a limiting groove is provided on the surface of the mounting plate, and a fixing piece is provided in the limiting groove.

[0013] As a preferred embodiment of the present invention, the four side ends of the panel body all have an inclined surface structure that is wider in the front and narrower in the back, and one end of the inclined surface structure close to the front side has a splicing plane.

[0014] As a preferred embodiment of the present invention, the display assembly includes a PCB board, an IC control chip and an LED lamp respectively arranged on both sides of the PCB board, and the IC control chip is closely attached to the surface of the panel body.

[0015] As a preferred embodiment of the present invention, the signal and power interfaces of the display component are arranged in the panel body, and a waterproof ring is provided around the signal and power interfaces in the panel body. One end of the waterproof ring extends out from the back of the panel body and is in close contact with the inner side of the plug-in panel.

[0016] As a preferred embodiment of the present invention, a lock groove is provided on the longitudinal reference member along its length direction toward the panel body, and the lock groove has a structure with a narrow opening and a wide inner cavity. A lock is provided on the panel body, and a lock core of the lock is extended into the lock groove. Lock blocks are provided on opposite sides of one end thereof. The distance between the opposite ends of the two lock blocks is greater than the width of the lock slot opening. An operating hole connected to the lock core is provided on the front side surface of the LED display panel and the longitudinal reference member.

[0017] As a preferred embodiment of the present invention, a locking platform is provided on the side of the lock core, a locking slope is provided on the locking platform toward the side of the locking block, and a push piece that cooperates with the locking slope is provided on the panel body.

[0018] As a preferred embodiment of the present invention, the push member is a push screw provided on the outer side of the panel body, and a fixing block connected to and fixed to the push screw is provided on the inner side of the panel body.

[0019] The advantages of the present invention are:

[0020] 1. It overturns the traditional design concept that LED display screens must use the cabinet as the smallest assembly unit. It creatively adopts LED display panels as the smallest assembly unit, making large indoor and outdoor LED displays enter the era of ultra-light and thin;

[0021] 2. The structure of LED display panel is light and thin, which makes it easier to transport, carry, install and maintain the product;

[0022] 3. Using LED display panel as the smallest assembly unit can effectively meet the assembly requirements of display screens of different specifications, and the flexibility of use has been greatly improved;

[0023] 4. Due to the cancellation of the box structure, the overall production cost has been greatly reduced. At the same time, the weight is lighter, and the manpower and material costs required for transportation, handling, installation and maintenance have also been effectively reduced;

[0024] 5. The entire display screen has changed its bulky image and is now light, thin and beautiful, greatly increasing the market competitiveness of the product;

[0025] 6. The LED display panel itself has a thin and light structure, and has excellent heat dissipation and waterproof performance, making it suitable for use in various environments indoors and outdoors;

[0026] 7. By designing limit grooves and plastic strips, the number of openings on the LED display panel is reduced, thereby improving the efficiency of production and processing;

[0027] 8. By designing a signal and power co-linear transmission plug-in panel, the wiring structure is simplified and the stability of the circuit connection is improved;

[0028] 9. The structure of assembling the LED display panel into a display screen is simple, easy to operate, and the efficiency of installation and maintenance is guaranteed;

[0029] 10. The vertical reference parts, horizontal reference parts and the reference properties of square steel are used to effectively ensure the surface flatness of the assembled LED display;

[0030] 11. The longitudinal reference piece is not only used for the longitudinal assembly of multiple LED display panels, but also used to cooperate with the horizontal reference piece to achieve the installation and clamping of the display screen and the square steel, and is also used for the installation of the power control box. Its ingenious structural design greatly reduces the number of accessories required for the entire installation, while simplifying the installation process, improving installation efficiency and reducing costs.

[0031] 12. With the LED display panel as the smallest assembly unit, during maintenance, one LED display panel can be disassembled and replaced separately, making maintenance more convenient;

[0032] 13. The gradual locking structure composed of the locking bevel and the push screw makes the locking operation smoother and the locking effect more stable and reliable. In addition, it is also designed with an in-place prompt structure to ensure the stability of the locking position and facilitate the installation and maintenance personnel to grasp the locking status;

[0033] 14. The installation position of the power control box can be adjusted according to actual conditions to meet the requirements of adapting to the specifications of the display screen or preventing interference with the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a rear view of a display screen based on an LED display panel according to the present invention;

[0035] Figure 2 Schematic diagram of the structure of the LED display panel in the present invention;

[0036] Figure 3 A side view of the LED display panel of the present invention;

[0037] Figure 4 It is a side view of the aluminum profile plate of the present invention;

[0038] Figure 5 Schematic diagram of the structure of the sealing member in the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the LED display panel signal and power interface in the present invention;

[0040] Figure 7 It is a structural schematic diagram of the waterproof ring in the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of the horizontal assembly of the LED display panel in the present invention;

[0042] Figure 9 Schematic diagram of the structure of the longitudinal reference member in the present invention;

[0043] Figure 10 Schematic diagram of the structure of the lock in the present invention;

[0044] Figure 11 This is a schematic diagram of the structure of the lock at the side opening of the aluminum profile plate of the present invention;

[0045] Figure 12 This is a schematic diagram of the structure of the installation location of the power control box in the present invention;

[0046] Figure 13 It is a structural schematic diagram of the mounting member in the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] like Figure 1 As shown, a display screen based on an LED display panel is assembled using an LED display panel 1 as the smallest assembly unit. As the foundation and core of the entire display screen, the structural design of the LED display panel 1 is the starting point of the entire invention, so the specific structure of the LED display panel is first introduced below.

[0049] like Figure 2 and 3 As shown, the LED display panel 1 is mainly composed of a panel body 11 , a display component 12 , and a plug-in panel 13 .

[0050] The panel body 11 includes an integrally formed aluminum profile plate 111 and sealing members 112 inserted into openings at both ends of the aluminum profile plate 111 .

[0051] like Figure 4 As shown, the aluminum profile plate body 111 further includes a mounting plate 1111 and a heat shield 1112 spaced apart, two end plates 1113 connecting the ends of the mounting plate 1111 and the heat shield 1112, and three support ribs 1114 connecting the interior of the mounting plate 1111 and the heat shield 1112. Furthermore, a retaining groove 1115 is provided at each end and in the middle of the mounting plate 1111. The retaining groove 1115 is used to accommodate fixings such as plastic strips, which are used to secure the display assembly 12 to the mounting plate 1111 with screws, thereby avoiding the need for additional drilling in the mounting plate. Since the mounting plate is relatively thin, direct drilling to secure the screws would result in poor stability. The retaining groove 1115 has a narrow opening and a wide interior to ensure the stability of the plastic strip within it. Avoidance grooves 1117 are also provided on both sides of the mounting plate 1111 to allow for components such as capacitors in the display assembly 12 to minimize the thickness of the entire LED display panel.

[0052] The setting of the insulation board 1112 forms an insulation guide cavity 1118 between it and the mounting plate 1111. On the one hand, the mounting plate 1111 absorbs the heat generated by the display assembly 12 and discharges it into the insulation guide cavity 1118, and efficiently dissipates heat through the convection effect formed between the multiple heat dissipation holes provided on the opposite sides of the panel body. On the other hand, when the display screen is used outdoors, the temperature of the insulation board 1112 is too high due to direct sunlight, and the insulation guide cavity 1118 effectively prevents the heat on the insulation board 1112 from directly acting on the mounting plate 1111 and the display assembly 12, that is, the convection heat dissipation effect of the insulation guide cavity 1118 is also utilized to achieve efficient heat dissipation.

[0053] The three support ribs 1114 are located in two avoidance slots 1117 and a central limiting slot 1115. This not only directly utilizes the structural strength of the avoidance slots 1117 and limiting slots 1115, but also shortens the length of the support ribs 1114 in the direction of connection between the mounting plate 1111 and the insulation board 1112, thereby increasing the structural strength of the support ribs themselves. This, in turn, improves the support strength between the mounting plate 1111 and the insulation board 1112, ensuring the stability of the distance between them and preventing deformation. Furthermore, the surface of the insulation board 1112 features four extension ribs 1119, which are extensions of the two end plates 1113 and the support ribs 1114 located in the two avoidance slots 1117. These ribs primarily serve to enhance overall structural strength and also provide positional identification for installers during installation.

[0054] like Figure 5As shown, the sealing member 112 can generally be made of plastic, which mainly serves as a seal without having to bear a supporting role. It specifically includes a cover 1121 and a plug connector 1122 that adapts to the shape of the opening at the end of the aluminum profile plate 111. Due to the presence of three support ribs 1114, the aluminum profile plate 111 is divided into four chambers, so there are four corresponding plug connectors 1122. At the same time, each plug connector 1122 is provided with a heat dissipation hole 1123 that passes through the outside of the cover 1121. Since the sealing member needs to be produced separately and is injection molded, the heat dissipation hole 1123 can be directly integrally formed on the sealing member 112, avoiding later processing and also avoiding the processing of heat dissipation holes on the aluminum profile plate 111, thereby improving production efficiency. In actual use, if the LED display panel is installed horizontally, that is, the two sealing members 112 are at the left and right ends of the same height, that is, the multiple groups of heat-guiding holes 1123 are at the left and right ends of the same height, then under the action of the external air flow, convection is formed between the heat-guiding holes at the left and right ends, and the internal air flow runs through the entire heat-insulating guide cavity 1118 to effectively dissipate heat. If the LED display panel is installed vertically, that is, the two sealing members 112 are at the upper and lower ends of the same vertical direction, that is, the multiple groups of heat-guiding holes 1123 are at the upper and lower ends of the same vertical direction, then the principle of hot air rising can be effectively utilized to form more efficient air convection between the upper and lower heat-guiding holes to achieve efficient heat dissipation, which is especially suitable for outdoor use in hot weather. In addition, in order to improve the installation stability of the sealing member 112, a fixing hole is provided on the plug connector 1122, so that the sealing member 112 and the aluminum profile plate 111 can be firmly connected by screws.

[0055] The display assembly 12 includes a PCB board, an IC control chip and an LED light arranged on opposite sides of the PCB board. The IC control chip is the main heat generating component of the display assembly, so it is directly attached to the surface of the mounting plate 1111 to take advantage of the good thermal conductivity of aluminum to quickly transfer the heat generated by the IC control chip to the mounting plate 1111, and then dissipate the heat through the heat insulation guide cavity 1118 and the heat dissipation holes 1123. Figure 6 As shown, the display assembly 12 also has a signal and power interface 124, which is set inside the panel body 11 by opening the mounting plate 1111. At the same time, a waterproof ring 125 is provided on the side of the opening to connect the mounting plate 1111 and the heat insulation plate 1112, so as to separate a waterproof cavity in the heat insulation guide cavity 1118 to meet the waterproof requirements of the signal and power interface 124. Of course, there is also an opening on the heat insulation plate 1112 to lead out the wiring. Specifically, as shown in FIG. Figure 7As shown, the waterproof ring 125 has a flange 1251 at one end for snapping into the opening on the mounting plate 1111 to ensure waterproofness at this end. A slot 1252 is provided on the side of the other end to utilize the elasticity of the waterproof ring itself to snap the edge of the opening on the insulation board 1112 into the slot 1252, thereby achieving the installation and fixation of the waterproof ring. In addition, the snap-fit ​​structure between the waterproof ring 125 and the insulation board 1112 also allows one end of the waterproof ring 125 to extend outside the insulation board 1112 to closely contact the inner side of the plug-in panel 13. This prevents water from seeping between the plug-in panel 13 and the insulation board 1112 from entering the waterproof ring 125, but instead flows downward along the outer side of the waterproof ring 125, further ensuring waterproofness.

[0056] The plug-in panel 13 is screwed onto the exterior of the opening in the heat shield 1112. A signal and power plug is installed within the plug-in panel 13. When installed on the heat shield 1112, the plug-in plug securely plugs into the signal and power interface 124 of the display assembly 12. A signal and power common line cable 132 extends from the plug-in panel 13 at its other end. The extended end of the signal and power common line cable 132 is equipped with a signal and power common line plug 1321, facilitating direct connection to the signal and power common line interface on the power control box 4. A sealing ring is provided at the hole in the plug-in panel 13 through which the signal and power common line cable 132 extends, further ensuring waterproofing. Furthermore, a sealing sleeve is provided on the plug of the signal and power common line cable 132, which is rotatably connected to the plug and has internal threads. The signal and power common line interface on the power control box 4 is externally threaded, ensuring a tight and waterproof connection between the plug and the interface. In addition, a handle 133 is provided on the plug-in panel to facilitate the installation and disassembly operations of the installation and maintenance personnel.

[0057] In addition, each of the four side ends of the LED display panel 1 has a bevel structure 101 that is wide in front and narrow in back, and a small splicing plane 102 is provided at one end of the bevel structure 101 near the front. Specifically, the two end plates 1113 of the aluminum profile plate 111 and the outer ends of the sealing member 112 have this bevel structure 101 and splicing plane 102. This design greatly reduces the contact area between adjacent LED display panels, thereby significantly reducing the impact of the flatness of the splicing surfaces between adjacent LED display panels on the flatness of the entire display screen surface. This also reduces the production requirements for LED display panels and the product defect rate. Standard parts with higher strength but a smaller number of required components ensure the flatness of the display screen surface during the assembly process of the LED display panels. Furthermore, this design also increases the gap between adjacent LED display panels, which is more conducive to heat dissipation, especially between horizontally spliced ​​LED display panels, because the heat dissipation holes 1123 are located at the horizontal splicing ends, making this heat dissipation gap essential.

[0058] The above is the specific structure of the LED display panel 1. In addition to the LED display panel 1 as the smallest assembly unit, the entire display screen also includes a longitudinal assembly component for realizing the longitudinal assembly of multiple LED display panels 1, a transverse assembly component for realizing the transverse assembly of LED display panels 1, an installation component for realizing the installation and fixation of the entire display screen, and a power control box 4. Since the LED display panel 1 is generally designed to be a rectangular structure that is wide horizontally and narrow vertically, the number of LED display panels assembled in the longitudinal direction will be relatively large. Therefore, the overall assembly concept of the present invention is to first assemble multiple LED display panels arranged vertically to form an LED display panel group, and then assemble two or more groups of LED display panels horizontally to simplify the assembly structure and improve assembly efficiency. In addition, the present invention also cleverly designs the above-mentioned transverse assembly component and the installation component to be combined into a splicing installation component, that is, a set of components is used to simultaneously realize the transverse splicing of two groups of LED display panels and the installation and fixation of the entire display screen.

[0059] like Figure 8 As shown, the longitudinal assembly component includes a longitudinal reference member 21, and a lock and a positioning column 23 provided on the LED display panel 1. Among them, the longitudinal reference member 21 is also an integrally formed profile, and it has high structural strength and flatness. Multiple LED display panels 1 are sequentially mounted tightly on the plane of the longitudinal reference member 21, ensuring the flatness of the surface of the longitudinally assembled LED display panels. In addition, the longitudinal reference member 21 is provided on the back of the LED display panel 1 near the left and right sides, that is, the longitudinal assembly of a group of LED display panels is completed by the left and right longitudinal reference members 21. At the same time, it is provided at the left and right ends of the LED display panel 1, so that it is not only used for longitudinal assembly components, but also for splicing and installing components, so as to reduce the number of components, simplify the installation process, and reduce costs.

[0060] like Figure 9As shown, the longitudinal reference member 21 specifically includes a splicing portion 211 and a connecting portion 212. The splicing portion 211 is mainly a flat plate horizontally attached to the back of the LED display panel 1, and a portion thereof extends out of the LED display panel. Since the side end of the LED display panel 1 has a slope structure 101, only a small section of the splicing plane 102 on the front side of the laterally adjacent LED display panels 1 conflicts with each other, and the splicing portion 211 plays a role in conflicting the back sides of the laterally adjacent LED display panels, thereby ensuring that there is conflict between the front and back of the laterally assembled LED display panels, that is, ensuring the flatness after assembly. In addition, in order to make the interference relationship between the splicing parts 211 of the two longitudinal reference parts 21 more stable, the end of the splicing part 211 has a interference strip 2111 that is vertically bent inward to increase the interference area. At the same time, the inclined structure 101 at the side end of the LED display panel 1 also provides space for the interference strip 2111 to avoid the interference strip 2111 from bending outward, thereby ensuring the flatness of the side of the splicing part 211 facing away from the LED display panel, so as to facilitate installation and fixation with the square steel 5.

[0061] The connecting portion 212 mainly includes a locking slot 2121 and a tensioning slot 2122, which are arranged in back-to-back directions and are both through-through. The two share a slot bottom plate 2123, and both have a limiting structure with a narrow opening and a wide inner cavity. Among them, the locking slot 2121 faces the LED display panel 1, and is used to cooperate with the lock and the positioning column 23 to realize the installation connection between the LED display panel and the longitudinal reference member 21. Specifically, a positioning column 23 and two locks are provided on the left and right ends of the back of each LED display panel. The positioning column 23 is located in the middle, and the two locks are provided on both sides of the positioning column 23. Correspondingly, the slot bottom plate 2123 is provided with positioning holes that cooperate with the positioning columns 23. The distance between adjacent positioning holes is equal to the longitudinal width of the LED display panel 1, so as to ensure installation accuracy and improve installation efficiency.

[0062] like Figure 10 and 11 As shown, the lock includes a lock core 221, a lock core sleeve 222, a fixing block 223, and a push screw 224. Holes are formed in both the mounting plate 1111 and the heat shield 1112. The lock core 221 is inserted through the hole in the heat shield 1112 until its end fits neatly into the hole in the mounting plate 1111. Lock blocks 2211 are provided on opposite sides of one end of the lock core 221. The distance between the opposing ends of the two lock blocks 2211 is greater than the width of the opening of the lock slot 2121. That is, when the lock core 221 is rotated so that the two lock blocks 2211 are located in the width direction of the lock slot 2121, the two lock blocks 2211 are retained within the lock slot 2121. When the lock core 221 is rotated so that the two lock blocks 2211 are located in the length direction of the lock slot 2121, the lock blocks 2211 and the lock core 221 can be withdrawn from the lock slot.

[0063] An annular locking platform 2212 is provided on the central side of the lock core 221. This platform 2212 is provided with a locking bevel 2213 on one side facing the lock block 2211. There are two identical locking bevels 2213, with the lower portion of one connecting to the higher portion of the other, and both connections are provided with a stop 2214. Accordingly, two push screws 224 are fastened to the outer surface of the heat shield 1112 via a fixing block 223 located on the inner surface of the heat shield 1112. The two push screws 224 are located on opposite sides of the lock core 221. The screw heads of the two push screws 224 need to partially protrude from the edge of the opening in the heat shield 1112 to engage with the locking bevels 2213. Of course, the fixing block 223 also has a through hole for the lock core 221 to pass through; and one end of the fixing block 223 is precisely stuck between the outer bottom surface of the avoidance groove 1117 and the inner surface of the heat insulation plate 1112, thereby providing auxiliary support for the fixing block before the push screw is tightened. When the lock core rotates, due to the push of the locking bevel 2213 and the push screw 224, the lock core 221 will gradually move toward the front of the LED display panel, thereby causing the two locking blocks 2211 to gradually press against the opening of the lock groove 2121, thus achieving a locked connection between the LED display panel 1 and the longitudinal reference member 21. In addition, the sides of the two limit platforms 2214 are provided with an in-position prompt protrusion 2215, and the inner side wall of the through hole of the fixed block 223 is provided with an in-position prompt groove 2232. On the one hand, it is used to locate the locking position of the lock cylinder to prevent loosening; on the other hand, it allows the operator to understand the rotation of the lock cylinder into position by sensing the vibration or sound when the in-position prompt protrusion 2215 is locked into the in-position prompt groove 2232 when the operator cannot see the inside of the lock.

[0064] A lock sleeve 222 is mounted over the portion of the lock core 221 within the LED display panel 1. Specifically, the lock sleeve 222 is positioned between the end of the locking platform 2212 facing away from the locking bevel 2213 and the inner side surface of the mounting plate 1111, limiting the distance the lock core 221 can move toward the front of the LED display panel 1. Furthermore, the two opposing sides of the lock sleeve 222 are flat, and after installation, one of the flat surfaces rests against the outer wall of the avoidance groove 1117, limiting the rotation of the lock sleeve 222 and ensuring its stability. Finally, hexagonal holes are located at both the front and rear ends of the lock core 221, respectively, for front and rear maintenance. Accordingly, holes for a hexagonal wrench must be provided on both the PCB 121 and the bottom plate 2123 of the groove.

[0065] like Figure 8As shown, the splicing installation assembly includes a horizontal reference piece 31, a stud 32, a tensioning block 33, a tensioning nut 34, and a positioning nut 35. Generally, the display screen can be installed on a vertically fixed square steel 5, taking advantage of the high structural strength and excellent surface flatness of the square steel as a reference piece. The installation and fixation of the display screen is mainly achieved by the horizontal reference piece 31 and the splicing parts 211 of the two longitudinal reference pieces 21, which are clamped on the two opposite sides of the square steel 5. In addition, due to the high flatness of the side of the square steel 5, when the splicing parts 211 of the two longitudinal reference pieces 21 are simultaneously pressed against the side of the square steel 5, the two splicing parts 211 are ensured to be on the same plane, that is, the two adjacent groups of LED display panels are on the same plane, which also ensures the flatness of the surface of the horizontally assembled LED display panels. Among them, the horizontal reference member 31 can be made of a steel plate with higher strength and a flat surface, which will not be deformed under the action of the clamping pressure between it and the square steel 5; and the splicing part 211 of the longitudinal reference member 21 has a part directly attached to the back side of the LED display panel 1, so the clamping pressure between the square steel 5 and it will be converted to the LED display panel, and therefore will not cause the splicing part 211 to deform.

[0066] It should also be noted that the horizontal reference member 31 and the two longitudinal reference members 21 merely cling to the front and rear surfaces of the square steel 5. The distance between the connecting portions 212 of the two longitudinal reference members 21 is greater than the left-right width of the square steel 5 to allow for adjustment. This is because when three or more LED display panels are assembled horizontally, two or more square steels are required, and the distance between the square steels can introduce a certain degree of error during installation. Without this adjustment space, the display will fail to install if the distance between the square steels is incorrect. Furthermore, the horizontality of the display is ensured by a level ground surface or a horizontal underlying support structure, meaning that this adjustment space does not cause the display to tilt.

[0067] Specifically, the tension block 33 can be pre-secured to one end of the stud 32 by, for example, providing a screw hole. The tension block 33 is then inserted through the side opening of the tensioning slot 2122. Simultaneously, the stud 32, connected to the tension block 33, slides along the notch of the tensioning slot 2122 until it is positioned as desired. The positioning nut 35 is then screwed onto the stud 32 until it is securely fastened to the notch of the tensioning slot 2122, securing the tension block 33 in place. Furthermore, the tension block 33 has a width that matches the tensioning slot 2122, preventing it from rotating within the slot 2122 and allowing for smooth tightening of the positioning nut 35. To enhance tightening stability, a gasket is provided between the positioning nut 35 and the longitudinal reference member 21. After the studs 32 are installed and secured to both longitudinal reference members 21 and rest against the square steel 5, the transverse reference member 31 is simultaneously inserted through its hole onto both studs 32. Finally, screw the tightening nut 34 onto the stud 32 until it is tightened against the surface of the horizontal reference member 31. Similarly, a gasket is provided between the tightening nut 34 and the horizontal reference member 31. Furthermore, since the force applied to the tightening groove 2122 is greater than that applied to the lock groove 2121, to ensure the structural strength of the tightening groove 2122, both sides of the notch of the tightening groove 2122 have a section that bends vertically inward to increase the thickness of the tightening groove 2122 in the direction of force. Specifically, the tightening nut 34 can be a butterfly nut, making it easier for installation and maintenance personnel to tighten it directly by hand. Of course, the number of splicing installation components used needs to be adjusted according to the height of the display screen to ensure installation stability.

[0068] Therefore, all LED display panels 1 are locked into one with the longitudinal reference member 21, and the longitudinal reference member 21 and the transverse reference member 31 are tightly embraced by the square steel 5, so that all LED display panels 1 are supported by the square steel 5 with reliable strength, and the stability of the entire display screen is guaranteed.

[0069] It should be noted that since the tensioning block 33 can slide freely along the tensioning groove 2122, as long as it does not interfere with other components, the entire splicing installation assembly can freely choose the installation position on the longitudinal reference member 21 according to actual conditions, thereby improving the flexibility and applicability of the installation.

[0070] It should also be noted that since the locking slot 2121 and the tensioning slot 2122 are arranged in back-to-back directions, the force of the tensioning block 33 on the tensioning slot 2122 and the force of the locking block 2211 on the locking slot 2121 act in opposite directions on the same straight line, so that the force on the longitudinal reference member 21 is more balanced, thereby avoiding deformation of the longitudinal reference member.

[0071] The entire display screen also requires a power control box 4. Each group of longitudinally assembled LED display panels shares one power control box 4. Since a plug-in panel 13 is provided on the back of the LED display panel, in order to avoid the plug-in panel 13 and make the electrical connection between the plug-in panel 13 and the power control box 4 more convenient, the power control box 4 is set at an adjacent position between two of the LED display panels.

[0072] Specifically, such as Figure 12 and 13 As shown, the installation and fixation of the power control box 4 also relies on the above-mentioned longitudinal reference member 21, that is, the two ends of the power control box 4 are respectively installed and connected with the longitudinal reference members 21 at the two ends of the LED display panel 1. In this way, the power control box 4 does not need to be directly in close contact with the LED display panel 1. A heat dissipation gap is provided between the two to prevent the LED display panel 1 from being affected by the heat generated by the power control box 4. Among them, both ends of the power control box 4 are provided with an integrally formed mounting member, which includes a connecting plate 41 fixed to the side end of the power control box 4 by screws, two fastening plates 42 respectively provided on both sides of the connecting plate 41, and a hand-held plate 43 provided on the upper end of the connecting plate 41. The fastening plate 42 is formed by cutting a longitudinal groove on the connecting plate 41 and then bending it 90 degrees. The hand-held plate 43 is formed by directly bending the upper end of the connecting plate 41 by 90 degrees. A hole is provided on the fastening plate 42, and a fastening nut 44 is provided in the tightening groove 2122 of the longitudinal reference member 21. The fastening bolt 45 passes through the hole on the fastening plate 42 and is threadedly connected and fastened to the fastening nut 44, thereby achieving the installation and fixation of the power control box 4.

[0073] Furthermore, since the LED display panel is provided with a plug-in panel 13 on the back, if the power control box 4 is to be slid along the back of the LED display panel to the installation position, it will interfere with the plug-in panel 13. Therefore, it can only be directly attached to the LED display panel in the correct position. In other words, the fastening nut 44 cannot be connected to the fastening bolt 45 in advance. Instead, the fastening nut 44 needs to be moved into position within the tensioning groove 2122 and then connected to the fastening bolt 45 passing through the fastening plate 42. To this end, it is necessary to ensure the positional stability of the fastening nut 44 after it is moved into position within the tensioning groove 2122. Therefore, a spring clip 441 is provided on the side of the fastening nut 441, which is bent toward the bottom of the tensioning groove. A retaining groove 442 is also provided on the bottom plate 2123 for retaining the end of the spring clip 441. This ensures that the spring clip 441 is always taut, thereby always pressing the fastening nut 44 against the notch of the tensioning groove 2122 and preventing it from sliding freely along the tensioning groove. Of course, the position of the fastening nut 44 can be manually adjusted based on actual conditions to adjust the installation position of the power control box 4 on the longitudinal reference member 21, thereby ensuring installation flexibility and applicability. Furthermore, to prevent the fastening nut 44 from rotating when the fastening bolt 45 rotates, a boss 443 is provided on the fastening nut 44 to engage the notch of the tensioning groove 2122, thereby limiting the position of the fastening nut 44. The aforementioned spring structure also ensures that the boss 443 of the fastening nut 44 always engages the notch of the tensioning groove. Furthermore, the handheld plate 43 is primarily used to provide a foothold for installation and maintenance personnel when moving the power control box.

[0074] As described above in the introduction to the LED display panel structure, the power control box 4 is provided with a signal and power common line plug interface for connecting the cable of the plug panel 13 on the LED display panel 1. Generally, the power control box 4 can be placed in the middle of a group of LED display panels, and signal and power common line plug interfaces are provided on both the upper and lower sides to facilitate the connection of the cables of the upper and lower LED display panels.

[0075] To sum up, the installation principle of this display is as follows:

[0076] First, for the single LED display panel itself, the display assembly 12 is mainly fixed to the panel body 11 by screws, which will not be described in detail. When installing the lock, since the installation position of the lock is close to the side end of the panel, before the sealing member 112 is installed, the fixing block 223 can be inserted from the opening at the side end of the aluminum profile plate 111, and one end of it can be stuck between the outer bottom surface of the avoidance groove 1117 and the inner side surface of the heat insulation board 1112. The screw holes on the fixing block 223 are aligned with the screw holes on the heat insulation board 1112 by adjustment. Then, the lock core 221 with the lock core sleeve 222 is inserted from the opening on the heat insulation board 1112, passing through the through hole on the fixing block 223 until the end of the lock core 221 is inserted into the hole on the mounting plate 1111. Then, two push screws 224 are passed through the screw holes on the heat insulation board 1112 and fastened to the fixing block 223. At this point, one end of the lock core 221 is limited by the lock core sleeve 222, and the other end is limited by two push screws 224, that is, the lock core 221 has been stably assembled on the LED display panel. The installation of the four locks is completed in sequence, and the positioning column 23 is directly connected to the threaded hole opened on the panel body by setting a thread on the end. Finally, the sealing member 112 is plugged into the two ends of the aluminum profile plate 111 and fixed with screws. The plug-in panel 13 is installed with screws to the back opening of the panel body, thus completing the assembly of the single LED display panel. Of course, the above assembly process must be completed before leaving the factory and will not be assembled on site.

[0077] Next, assemble the multiple LED display panels vertically. First, place the multiple LED display panels face down and align them on a horizontal surface, ensuring that the lock block 2211 on the lock core 221 of each LED display panel is facing the longitudinal splicing direction. Next, align the positioning hole on the longitudinal reference member 21 with the positioning column 23 on the back of the LED display panel to hold the longitudinal reference member 21 tightly against the back of the LED display panel. Then, use an Allen wrench to insert it through the hole on the bottom plate 2123 of the inner groove of the longitudinal reference member into the hexagonal hole at the end of the lock core 221. Rotate the lock core so that the lock block 2211 of the lock core presses the longitudinal reference member 21 against the LED display panel. Complete the locking work of all the locks in sequence and install the longitudinal reference members 21 at both ends of the LED display panel. Finally, install the power control box 4 to the back of an LED display panel group and plug the cables on each plug-in panel 13 into the power control box. At this point, the assembly of an LED display panel group is complete. Usually, the above assembly process also needs to be completed before leaving the factory to avoid being affected by the environment of the display installation site, while reducing the installation process at the installation site as much as possible and improving the installation efficiency at the site.

[0078] Finally, at the display installation site, multiple LED display panel groups are assembled horizontally and simultaneously installed on the square steel 5 of the display mounting bracket, following the installation order from bottom to top. First, slide the required number of tension blocks 33 and studs 32 into the tensioning grooves 2122 on the longitudinal reference member 21 at the horizontal joint until they are in the installation position. Then, tighten the positioning nuts 35 onto the studs 32 to fix the positions of the tension blocks 33 and studs 32. After all the required studs are installed and fixed, use the handle 133 on the plug-in panel 13 to lift the two LED display panel groups to be assembled, and make their longitudinal reference members simultaneously rest against the front side of the square steel 5. Then, insert the horizontal reference member 31 onto the left and right studs 32, and tighten the tension nuts 34 onto the studs 32. After installing the horizontal reference member 31 on each group of studs in turn, the horizontal assembly of the two groups of LED display panels is completed, until all the LED display panel groups are installed on the square steel 5, thus completing the installation of the entire display.

[0079] Of course, the specifications of the display screen can be customized according to actual needs, including but not limited to the size of the entire display screen, the size of each group of LED display panels, and even the size of each LED display panel.

[0080] The above description is merely a preferred embodiment of the present invention, which is one implementation method based on the overall concept of the present invention. The scope of protection of the present invention is not limited to this embodiment. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A display screen based on an LED display panel, characterized in that: It includes an LED display panel, longitudinal reference members provided on the backs of a plurality of parallel-arranged LED display panels near both sides, longitudinal reference members provided on two adjacent groups of LED display panels, and a splicing installation component; The LED display panel includes a panel body, a display component arranged on the panel body, and a plug-in panel arranged on the back of the panel body. A power control box is commonly provided on the back of the same group of LED display panels. The splicing installation assembly includes a transverse reference piece, a stud, a tightening block, a tightening nut, and a positioning nut. The transverse reference piece and two adjacent longitudinal reference pieces are tightly clamped on the opposite sides of the square steel; The longitudinal reference member is provided with a lock groove toward the panel body along its length direction, and the lock groove has a structure with a narrow opening and a wide inner cavity. A lock is provided on the panel body, and a lock block is provided on the opposite sides of one end of the lock core of the lock device extending into the lock groove. The distance between the opposite ends of the two lock blocks is greater than the width of the lock groove opening. An operating hole connected to the lock core is provided on the front side surface of the LED display panel and the longitudinal reference member; a locking platform is provided on the side surface of the lock core, and a locking inclined surface facing the side of the lock block is provided on the locking platform, and a push member that cooperates with the locking inclined surface is provided on the panel body.

2. The display screen based on LED display panel according to claim 1, characterized in that: The panel body includes a mounting plate and a heat insulation plate arranged at intervals, and support ribs connecting the mounting plate and the heat insulation plate. A heat insulation guide cavity is formed between the mounting plate and the heat insulation plate. The opposite sides of the panel body are provided with guide and heat dissipation holes.

3. The display screen based on LED display panel according to claim 2, characterized in that: The panel body also includes two end plates integrally formed with the mounting plate and the heat insulation plate, and sealing members arranged at the other two ends of the panel body; the diversion and heat dissipation holes are arranged on the sealing members.

4. The display screen based on LED display panel according to claim 2, characterized in that: A limiting groove is provided on the surface of the mounting plate, and a fixing piece is provided in the limiting groove.

5. The display screen based on LED display panel according to claim 1, characterized in that: The four side ends of the panel body all have an inclined surface structure that is wide at the front and narrow at the back, and one end of the inclined surface structure close to the front side has a splicing plane.

6. The display screen based on LED display panel according to claim 1, characterized in that: The display assembly includes a PCB board, an IC control chip and an LED light which are arranged on both sides of the PCB board, and the IC control chip is closely attached to the surface of the panel body.

7. The display screen based on LED display panel according to claim 1, characterized in that: The signal and power interface of the display component is arranged in the panel body. A waterproof ring is provided around the signal and power interface in the panel body. One end of the waterproof ring extends out from the back of the panel body and is in close contact with the inner side of the plug-in panel.

8. The display screen based on LED display panel according to claim 1, characterized in that: The push member is a push screw provided on the outer side of the panel body, and a fixing block connected to and fixed with the push screw is provided on the inner side of the panel body.

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