All-angle flexible splicing type LED screen

Abstract

The invention relates to the technical field of flexible LED screens, in particular to a full-angle flexible splicing type LED screen which comprises a frame, circuit elements and display units, the curvature of the frame is variable, the multiple display units are arranged on the frame in a rectangular array mode, and the circuit elements are installed in the frame and electrically connected with the display units. By arranging the compensation assembly, when the display unit generates a dark line on the gap due to curvature change, the positioning magnet generates an inclination angle relative to the edge side surface of the display unit according to the deformation quantity of the display unit, so that the magnetic induction line between the positioning magnet and the compensation unit is changed, and the compensation light source is driven to rotate; the reflecting plate is arranged in the gap, so that scattered light of the compensation light source is converted into directional light reflected towards the outside of the gap through the reflecting plate, dark lines are prevented from being generated in the gap, it is guaranteed that when the display unit is in various curvatures, the dark lines generated by a screen can be automatically compensated according to the deformation quantity of the display unit, and the display effect of the screen is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible LED screens, and in particular to a full-angle flexible spliced ​​LED screen. Background Art

[0002] Flexible LED splicing screen is an LED display product made of flexible materials. It builds a large-size display screen by splicing multiple flexible screens together. The screen can be bent and twisted freely, easily adapting to various complex scenes, and is very thin, and can be easily installed on walls, ceilings or other irregular surfaces. Flexible splicing LED screens are easy to bend and splice. Compared with LED film screens, they are less restricted by the installation area. Therefore, they have a wide range of applications and can realize the installation of various exquisite and creative customized LED display screens.

[0003] Since the screen curvature and display effect of the existing flexible splicing LED screen are limited by the modular frame behind it, since a single frame is built by professionals using steel materials such as square tubes, and the modular frames are connected by snaps, welding and bolting, gaps will inevitably appear at the joints, resulting in dark lines on the large screen that affect the display effect. Professionals can use their professional knowledge and assembly technology to avoid the generation of dark lines when installing the splicing screen, but the display content of the large screen is generally advertising or film and television content. When the large screen needs to change the curvature of the frame according to the displayed content to achieve the best display effect, the originally matched splicing gaps between the frames are enlarged due to the change in curvature, and the professionals are not on site. The dark lines that affect the display effect cannot be resolved after they reappear, resulting in a decrease in the visual effect when pictures and animations are played.

[0004] The prior art provides some solutions to the above problems. For example, the invention disclosure of patent application number CN202121180665.7 provides a spliced, welding-free wavy flexible LED display screen. Several evenly arranged magnets are fixedly installed on the back of the LED flexible module. The magnets of several LED flexible modules are magnetically matched and installed in the wavy box. The magnets on the back of the LED flexible module can be adsorbed into the wavy box, which directly reduces the difficulty of installation and adjustment. Through magnetic connection, non-professional personnel can also easily adjust the splicing gap, thereby reducing the generation of gaps, thereby improving the visual effect when pictures and animations are played. However, the width of each splicing gap in this scheme is different, and after the multiple boxes are assembled, the flatness of the connection surface is difficult to guarantee. Since the LED flexible module is connected to the box through magnetic force, the LED flexible module can completely fit the curvature of the box, but since the flatness of its connection surface is difficult to guarantee, there may be a drop between adjacent LED flexible modules, so that dark lines that affect the display effect may appear in the splicing gap. Summary of the invention

[0005] The purpose of the present invention is to provide a full-angle flexible splicing LED screen to solve the problem that when the frame needs to convert multiple curvatures according to the display content, the splicing gap between adjacent display units will constantly change. When an unreasonable splicing gap appears, dark lines may appear that affect the display effect of the large screen. When the above problem occurs on the splicing LED screen, the visual effect of the large-screen display is reduced, and at the same time the shortcomings of the existing technical solutions are solved.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A full-angle flexible splicing LED screen comprises a frame, a circuit element and a display unit. The curvature of the frame is variable. A plurality of display units are arranged in a rectangular array on the frame. The circuit element is installed in the frame and is electrically connected to the display unit. Specifically, a compensation component is provided at the frame of the display unit. The compensation component comprises a positioning magnet and a compensation light source. The positioning magnet is used to adsorb the display unit on the deformable frame. The compensation light source is hinged on both sides of the display unit and is magnetically connected to the positioning magnet. When the gap between the display units on adjacent sides changes due to a change in curvature, the positioning magnet drives the compensation light source to rotate so as to be flush with the gap after the curvature changes.

[0008] The frame is generally constructed of multiple metal square tubes through modularization to form a huge LED display screen frame. The circuit components are arranged in the frame, and multiple display units are arranged in a rectangular array on the outer surface of the frame. The positioning magnets magnetically connect the display units to the frame. Due to the magnetic connection, the display units are movable in a two-dimensional position, so that the positions of adjacent display units can be easily adjusted slightly, thereby reducing the appearance of gaps, thereby avoiding the problem of difficult adjustment by bolt connection and welding connection. When the display unit has dark lines on the gap due to the change of curvature, the positioning magnets produce an inclination angle relative to the edge side of the display unit according to the deformation of the display unit, so that the magnetic flux lines between the positioning magnets and the compensation unit are changed, thereby driving the compensation light source to rotate, so that the reflector converts the scattered light of the compensation light source into directional light reflected toward the outside of the gap, thereby avoiding the generation of dark lines in the gap, thereby ensuring that no matter what curvature the display unit is in, the dark lines generated on the screen can be automatically compensated according to the deformation of the display unit, thereby ensuring the display effect of the screen after the curvature changes.

[0009] Preferably, the compensation component also includes a mounting groove and a reflective plate, the reflective plate is arranged on the inner side of the compensation light source, the mounting groove is opened on both sides of the display unit, the compensation light source is hinged to the inner wall of the mounting groove through a torsion spring, the positioning magnet is in a "T" shape and one end is connected to the frame, and the other end extends into the mounting groove, the compensation light source is an LED light bar, the lamp beads on the compensation light source are parallel to the lamp beads on the display unit, and the reflective plate is an outwardly convex arc shape.

[0010] It is easy to understand that when the user needs to change various screen curvatures according to the display content of the screen, the display unit deforms synchronously with the deformation of the frame. After the frame is deformed, the curvature of the screen may change from a plane to a wavy or cylindrical shape, so that a trapezoidal splicing gap is generated between adjacent display units. As the curvature increases, the gap becomes larger, and dark lines that affect the display effect appear between adjacent display units. By setting the positioning magnet to a "T" shape, when the display unit is a plane, the positioning magnet is parallel to the compensation light source, and the magnetic flux lines between the two are 180°. At this time, the gap between the display units is completely closed, and the gap will not produce dark lines that affect the display effect. When the curvature between the display units changes, dark lines appear due to the expansion of the gap. Since the display unit has thickness, when the display unit bulges outward, the display unit The inner concave surface of the element is contracted relative to the outer convex surface, and the two sides of the display unit are perpendicular to the inner concave surface and the outer convex surface. This makes the positioning magnet located in the installation groove no longer parallel to the compensation light source as the display unit bulges outward. As the positioning magnet approaches the compensation light source due to the inclination, the compensation light source is subjected to the magnetic force of the positioning magnet and then resists the elastic force of the torsion spring to achieve rotation. As the curvature of the display unit is further increased, the compensation light source further rotates to a corresponding angle, and the arc-shaped reflector plate intensifies the light of the compensation light source and then reflects it directionally outside the gap. Since the adjacent compensation light sources are mirror-symmetrical, when the human eye observes from all angles, the compensation of the dark line by the compensation light source is the same. The intensity and directionality of the light are enhanced by the reflector plate, thereby ensuring the consistency of the display effect and optimizing the display effect of the screen.

[0011] Preferably, the contact surfaces of the adjacent two side reflective plates are further provided with mutually meshing gear parts.

[0012] It is easy to understand that since adjacent compensation light sources need to ensure mirror symmetry in order to ensure that the light reflection effect of the reflector on the compensation light sources is consistent, the steering angles of adjacent compensation light sources may be slightly different due to the different magnetic forces they are subjected to. By providing mutually meshing gear parts between adjacent compensation light sources, the rotation angles of the adjacent compensation light sources on both sides can be synchronized, thereby ensuring the consistency of the light reflection of the reflector on the compensation light sources, thereby further improving the compensation effect of the display unit on dark lines after the curvature changes, thereby ensuring the display effect of the large screen.

[0013] Preferably, damping washers are provided at the hinged locations at the upper and lower ends of the compensation light source.

[0014] It is easy to understand that in order to prevent the compensation light source from rotating slightly due to tiny external vibrations after rotation, damping washers are provided at the upper and lower hinges of the compensation light source, thereby ensuring the stability of the dark line compensation effect of the directional light reflected by the reflection plate from the compensation light source, thereby ensuring the display effect of the screen during daily use.

[0015] Preferably, a magnetic column and a magnetic groove are provided at the edge adjacent to the positioning magnet, the magnetic groove is concentric with the magnetic column, the magnetic column is provided on the left side of the single display unit, and the magnetic groove is provided on the right side of the single display unit.

[0016] It is easy to understand that when multiple display units are installed in an array, the magnetic columns and magnetic grooves of a single display unit are respectively arranged on the left and right sides of the single display unit, and the magnetic columns on one side of the display unit are magnetically connected to the magnetic grooves of another display unit on the opposite side. Since the splicing gaps of multiple modular frames cannot be kept constant after splicing, the flatness between the display units cannot be guaranteed. Since the magnetic grooves and magnetic columns are concentric circles, there will be no height differences between adjacent display units after magnetic connection, thereby ensuring that the flatness and connection gaps of the large screen meet the display requirements.

[0017] Preferably, the magnetic groove is U-shaped and opens toward the outside of the display unit.

[0018] It is easy to understand that when a damaged display unit appears among multiple display units, the gaps between the display units cannot be found by the naked eye due to the flatness between the screens. When the display unit needs to be maintained, it can only be removed from the back of the frame from the inside to the outside. This operation is complicated and it is difficult for non-professionals to ensure the assembly effect, so that the gaps between the display units affect the display effect of the screen. Through the concentric positioning and magnetic connection of the magnetic column and the magnetic groove, non-professionals can also install and disassemble the display unit conveniently and quickly. By setting the structure of the magnetic groove to open a U shape toward the outside of the display unit, when the display unit is replaced, by pressing toward the center of the corresponding display unit, since the display unit has a certain flexibility, when the center of the display unit is subjected to pressure, the frame of the display unit will be deformed and tilted in the opposite direction to the applied pressure, so that the magnetic column moves toward the U-shaped notch of the magnetic groove, so that the damaged display unit can be replaced without the need for extra tools and removal of other parts.

[0019] Preferably, a C-shaped nylon buckle is further provided in the magnetic groove, the C-shaped nylon buckle is concentric with the magnetic groove, and a surrounding groove is further provided on the magnetic column, and the C-shaped nylon buckle is slidably connected to the groove.

[0020] It is easy to understand that, since the magnetism of the magnet is limited, the magnetic strength of the connection between the magnetic column and the magnetic groove decreases after long-term use, resulting in a decrease in concentricity, and the flatness between adjacent display units cannot be guaranteed. After the screen is used for a long time, the compensation light sources are no longer parallel and symmetrical, so that the compensation light source cannot eliminate the dark lines in the gap. When the magnetic column is attracted by the magnetic groove, the C-shaped nylon buckle first abuts against the magnetic column, and the C-shaped nylon buckle is squeezed by the magnetic column, and then deformed and expanded outward until the C-shaped nylon buckle is locked with the groove on the magnetic column. Since the C-shaped nylon buckle, the magnetic column and the magnetic groove are concentric circles, when the magnetic connection decreases, the concentricity between the magnetic column and the magnetic groove can be maintained by mechanical connection, thereby ensuring that after the display unit is used for a long time, the reflection angle of the reflector to the refracted light of the adjacent compensation light source can remain stable, and the display effect of the large screen is still guaranteed.

[0021] Preferably, the positioning magnet and the display unit are wrapped with rubber at the back, and the rubber is provided with deformation grooves arranged in an array, the deformation grooves are in an arc shape convex toward the display unit, and the non-matching surfaces of the positioning magnet are all wrapped by the rubber.

[0022] It is easy to understand that although the positioning magnets can simplify the installation and maintenance of the display unit and improve the degree of fit between the display units, there is a certain repulsive force in other directions between adjacent positioning magnets in addition to the magnetic force of mutual attraction. By wrapping the non-matching surface of the positioning magnet with rubber, the adjacent positioning magnets are not affected by the repulsive force; at the same time, by opening deformation grooves on the rubber, the rubber deforms with the display unit, and the squeezed side of the rubber has deformation grooves. The rubber can absorb the stress caused by changes in the display unit due to deformation, pressure, etc., as well as external mechanical shock and vibration, thereby extending the service life of the display unit, and the spacing of the deformation grooves allows the display unit to deform arbitrarily without being affected.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention sets a compensation component. When a dark line is generated on the gap due to a change in curvature of the display unit, the positioning magnet generates an inclination angle relative to the edge side of the display unit according to the deformation of the display unit, so that the magnetic flux lines between the positioning magnet and the compensation unit are changed, thereby driving the compensation light source to rotate, so that the reflector converts the scattered light of the compensation light source into directional light reflected toward the outside of the gap, thereby avoiding the generation of dark lines in the gap, thereby ensuring that no matter what curvature the display unit is in, the dark lines generated on the screen can be automatically compensated according to the deformation of the display unit, thereby ensuring the display effect of the screen after the curvature changes.

[0025] 2. The present invention arranges magnetic grooves and magnetic buckles on the positioning magnets. Since the magnetic grooves and magnetic columns are concentric circles, when adjacent display units are connected and their curvatures are in a plane, their flatness and connection gaps can meet display requirements. When a damaged display unit appears, since the integrity of the screens is guaranteed, the gaps between the display units cannot be seen by the naked eye. Through the concentric positioning and magnetic connection of the magnetic columns and magnetic grooves, the frame of the display unit will deform and warp when it is subjected to pressure, so that non-professionals can easily replace the damaged display unit without the need for extra tools or removal of other parts.

[0026] 3. The present invention sets mutually meshing gear parts. Since adjacent compensation light sources need to ensure mirror symmetry to ensure that the light reflection effect of the reflector on the compensation light sources is consistent, the steering angles of adjacent compensation light sources may be slightly different due to the different magnetic forces they are subjected to. By setting mutually meshing gear parts between adjacent compensation light sources, the rotation angles of the adjacent compensation light sources on both sides can be synchronized, thereby ensuring the consistency of the light reflection of the reflector on the compensation light sources, thereby further improving the display effect of the display unit after the curvature changes.

[0027] 4. The present invention provides a C-shaped nylon buckle. Since the magnetic connection of the magnet gradually decreases with time, the concentricity of the connection between the magnetic column and the magnetic groove decreases, and the flatness between adjacent display units cannot be guaranteed. After the screen has been used for a long time, the compensation light sources are no longer parallel and symmetrical, so that the compensation light source cannot eliminate the dark lines in the gap. Since the C-shaped nylon buckle, the magnetic column and the magnetic groove are concentric circles, the concentricity between the magnetic column and the magnetic groove can be maintained by mechanical connection, thereby ensuring that the display effect of the display unit is still guaranteed after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the full-angle flexible splicing LED screen of the present invention;

[0029] Figure 2 It is a schematic diagram of the structural state of the frame after the curvature is changed;

[0030] Figure 3 for Figure 2 Full cross-section at the middle AA;

[0031] Figure 4 for Figure 3 Schematic diagram of the structure state where the compensation light source at B in the middle compensates the dark line generated between the gaps;

[0032] Figure 5 It is a schematic diagram of the structural state when the positioning magnet and the compensation light source are unchanged;

[0033] Figure 6 It is a schematic diagram of the parts structure on the back of the display unit;

[0034] Figure 7 for Figure 6 Schematic diagram of the structure of the compensation component at C in the middle;

[0035] Figure 8 It is a schematic diagram of the magnetic groove structure corresponding to the magnetic column on the other side of the display unit.

[0036] In the figure: 101, frame; 102, circuit element; 103, display unit; 2, compensation component; 201, positioning magnet; 202, magnetic column; 2021, groove; 203, magnetic groove; 2031, C-shaped nylon buckle; 204, compensation light source; 2041, damping washer; 205, reflection plate; 2051, gear part; 206, mounting groove; 3, rubber; 301, deformation groove. DETAILED DESCRIPTION

[0037] The present invention provides a full-angle flexible splicing LED screen, and the technical solution is as follows:

[0038] See also Figures 1 to 8 A full-angle flexible splicing LED screen includes a frame 101, a circuit element 102 and a display unit 103. The curvature of the frame 101 is variable. A plurality of display units 103 are arranged in a rectangular array on the frame 101. The circuit element 102 is installed in the frame 101 and is electrically connected to the display unit 103. Specifically, a compensation component 2 is provided at the frame of the display unit 103. The compensation component 2 includes a positioning magnet 201 and a compensation light source 204. The positioning magnet 201 is used to adsorb the display unit 103 on the deformable frame 101. The compensation light source 204 is hinged on both sides of the display unit 103 and is magnetically connected to the positioning magnet 201. When the gap between the display units 103 on the adjacent two sides changes due to the change in curvature, the positioning magnet 201 drives the compensation light source 204 to rotate so as to be flush with the gap after the curvature changes.

[0039] See also Figures 4 to 8The compensation component 2 also includes a mounting groove 206 and a reflective plate 205. The reflective plate 205 is arranged inside the compensation light source 204. The mounting groove 206 is opened on both sides of the display unit 103. The compensation light source 204 is hinged to the inner wall of the mounting groove 206 through a torsion spring. The positioning magnet 201 is "T" shaped and one end is connected to the frame 101, and the other end extends into the mounting groove 206. The compensation light source 204 is an LED light bar. The lamp beads on the compensation light source 204 are aligned with the lamp beads on the display unit 103. The reflecting plate 205 is in an outwardly convex arc shape, and the contact surfaces of the adjacent reflecting plates 205 on both sides are also provided with gear parts 2051 that mesh with each other. The positioning magnet 201 and the display unit 103 are also wrapped with rubber 3 behind them, and the rubber 3 is also provided with deformation grooves 301 arranged in an array. The deformation grooves 301 are in an arc shape that convex toward the display unit 103. The non-matching surfaces of the positioning magnet 201 are all wrapped by the rubber 3, and damping washers 2041 are provided at the upper and lower ends of the hinges of the compensation light source 204.

[0040] See also Figures 4 to 8 A magnetic column 202 and a magnetic groove 203 are also provided at the edge of the adjacent positioning magnet 201. The magnetic groove 203 is concentric with the magnetic column 202. The magnetic column 202 is arranged on the left side of the single display unit 103, and the magnetic groove 203 is arranged on the right side of the single display unit 103. The magnetic groove 203 is U-shaped and opened toward the outside of the display unit 103. A C-shaped nylon buckle 2031 is also provided in the magnetic groove 203. The C-shaped nylon buckle 2031 is concentric with the magnetic groove 203. A surrounding groove 2021 is also provided on the magnetic column 202, and the C-shaped nylon buckle 2031 is slidably connected to the groove 2021.

[0041] See also Figures 1 to 8 The frame 101 is generally constructed of multiple metal square tubes through modularization to form a huge frame 101 of the LED display screen. The circuit element 102 is arranged in the frame 101. Multiple display units 103 are arranged in a rectangular array on the outer surface of the frame 101. The positioning magnet 201 magnetically connects the display unit 103 to the frame 101. Due to the magnetic connection, the display unit 103 is movable in a two-dimensional position, so that the position of the adjacent display unit 103 can be easily adjusted slightly, thereby reducing the appearance of gaps, thereby avoiding the problem of difficult adjustment by bolt connection.

[0042] If the frame 101 forms a plane after construction, when multiple display units 103 are installed in an array, the magnetic column 202 and the magnetic groove 203 of a single display unit 103 are respectively arranged on the left and right sides of the single display unit 103. When the display unit 103 is installed, the magnetic column 202 on one side of the display unit 103 is magnetically connected to the magnetic groove 203 of another display unit 103 on the opposite side. Since the magnetic groove 203 and the magnetic column 202 are concentric circles, the flatness and connection gap between adjacent display units 103 after connection can meet the display requirements.

[0043] When a damaged display unit 103 appears among multiple display units 103, the gaps between the display units 103 cannot be found by naked eyes because the flatness between the screens is guaranteed. When the display unit 103 needs to be maintained, it can only be removed from the back of the frame 101 from the inside to the outside. This operation is complicated and it is difficult for non-professionals to ensure the assembly effect, so that the gaps between the display units 103 affect the display effect of the screen. Through the concentric positioning and magnetic connection of the magnetic column 202 and the magnetic groove 203, non-professionals can also install and disassemble the display unit 103 conveniently and quickly. By arranging the structure of the magnetic slot 203 to open a U-shape toward the outside of the display unit 103, when the display unit 103 is replaced, by pressing on the center of the corresponding display unit 103, since the display unit 103 has a certain flexibility, when the center of the display unit 103 is subjected to pressure, the frame of the display unit 103 will be deformed and tilted in the direction opposite to the applied pressure, so that the magnetic column 202 moves toward the U-shaped notch of the magnetic slot 203, so that the damaged display unit 103 can be replaced without the need for extra tools and the removal of other parts.

[0044] Since the duration of the magnetic properties of a magnet depends on many factors such as the type of magnet, the environment in which it is used, the maintenance method, and the storage conditions, magnets can be roughly divided into two categories: permanent magnets and electromagnets. Permanent magnets, such as the commonly used neodymium iron boron magnets, have good stability and strong magnetic force. In the absence of external forces, they can maintain magnetism for a long time. In theory, the magnetism of a permanent magnet can be maintained for more than 100 years, or even longer. However, if it is often exposed to high temperatures, strong acids and alkalis, or mechanical impacts, its magnetism will gradually weaken. The positioning magnet 201 in this embodiment is a neodymium iron boron magnet. After ten years of use, the magnetic strength of the connection between its magnetic column 202 and the magnetic groove 203 decreases, its concentricity decreases, and the flatness between adjacent display units 103 cannot be guaranteed. After long-term use, the screen is no longer parallel to the compensation light sources 204. Symmetry makes it impossible for the compensation light source 204 to eliminate the dark line in the gap. When the magnetic column 202 is attracted by the magnetic groove 203, the C-shaped nylon buckle 2031 first contacts the magnetic column 202. The C-shaped nylon buckle 2031 is squeezed by the magnetic column 202 and then deforms and expands outward until the C-shaped nylon buckle 2031 is locked with the groove 2021 on the magnetic column 202. Since the C-shaped nylon buckle 2031, the magnetic column 202 and the magnetic groove 203 are concentric circles, when the magnetic connection is lowered, the concentricity between the magnetic column 202 and the magnetic groove 203 can be maintained by mechanical connection, thereby ensuring that after the display unit 103 is used for a long time, the reflection angle of the reflector 205 to the refracted light of the adjacent compensation light source 204 can remain stable, and its display effect is still guaranteed.

[0045] When the user needs to change various screen curvatures according to the display content of the screen, the display unit 103 deforms synchronously with the deformation of the frame 101. After the frame 101 is deformed, the curvature of the screen may change from a plane to a wave or a cylinder, so that a trapezoidal gap is generated between adjacent display units 103. As the curvature increases, the gap becomes larger, and dark lines that affect the display effect appear between adjacent display units 103. By setting the positioning magnet 201 to a "T" shape, when the display unit 103 is a plane, the positioning magnet 201 is parallel to the compensation light source 204, and the magnetic flux lines between the two are 180°. At this time, the gap between the display units 103 is completely closed. The gap will not produce dark lines that affect the display effect. When the curvature between the display units 103 changes, dark lines appear due to the expansion of the gap. Since the display unit 103 has thickness, when the display unit 103 bulges outward, the inner concave surface of the display unit 103 is contracted relative to the outer convex surface, and the two sides of the display unit 103 are perpendicular to the inner concave surface and the outer convex surface. This makes the positioning magnet 201 located in the mounting groove 206 no longer parallel to the compensation light source 204 as the display unit 103 bulges outward. As the positioning magnet 201 approaches the compensation light source 204 due to the tilt, the compensation light source 204 is resisted by the magnetic force of the positioning magnet 201. The elastic force of the torsion spring realizes the rotation. As the curvature of the display unit 103 is further increased, the compensation light source 204 is further rotated by a corresponding angle. The arc-shaped reflector 205 enhances the light of the compensation light source 204 and then reflects it directionally outside the gap. Since the adjacent compensation light sources 204 are mirror-symmetrical, when the human eye observes from various angles, the compensation of the dark line by the compensation light source 204 is the same. The intensity and directionality of the light are enhanced by the reflector 205, thereby ensuring the consistency of the display effect, thereby optimizing the display effect of the screen. Since the adjacent compensation light sources 204 need to ensure mirror-symmetrical light to ensure that the reflection effect of the reflector 205 on the compensation light source 204 is consistent, The steering angles of adjacent compensation light sources 204 may be slightly different due to the different magnetic forces they are subjected to. By providing mutually meshing gear parts 2051 between adjacent compensation light sources 204, the rotation angles of the compensation light sources 204 on both sides are synchronized, thereby ensuring the consistency of light reflection of the compensation light source 204 by the reflection plate 205, thereby further improving the display effect of the display unit 103 after the curvature changes. By providing damping washers 2041 at the upper and lower ends of the hinges of the compensation light source 204, the compensation light source 204 will not rotate slightly due to slight external vibrations after rotation, thereby ensuring the stability of the dark line compensation of the compensation light source 204.

[0046] Although the positioning magnet 201 can simplify the installation and maintenance difficulty of the display unit 103 and improve the matching degree between the display units 103, there is a certain repulsive force in other directions between adjacent positioning magnets 201 in addition to the magnetic force of mutual attraction. By wrapping the non-matching surface of the positioning magnet 201 with rubber 3, the adjacent positioning magnets 201 are not affected by the repulsive force; at the same time, by opening a deformation groove 301 on the rubber 3, when the rubber 3 deforms with the display unit 103, the squeezed side of the rubber 3 has a deformation groove 301, and the rubber 3 can absorb the stress caused by the display unit 103 due to deformation, pressure and other changes, as well as external mechanical shock and vibration, thereby extending the service life of the display unit 103, and the deformation groove 301 allows the display unit 103 to be deformed arbitrarily without being affected.

[0047] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A full-angle flexible splicing LED screen, comprising a frame (101), a circuit element (102) and a display unit (103), wherein the curvature of the frame (101) is variable, a plurality of display units (103) are arranged on the frame (101) in a rectangular array, the circuit element (102) is installed in the frame (101) and is electrically connected to the display unit (103), and characterized in that: A compensation component (2) is provided at the frame of the display unit (103), and the compensation component (2) comprises a positioning magnet (201) and a compensation light source (204). The positioning magnet (201) is used to adsorb the display unit (103) on the deformable frame (101). The compensation light source (204) is hinged to two sides of the display unit (103) and is magnetically connected to the positioning magnet (201). When the gap between the display units (103) on two adjacent sides changes due to a change in curvature of the frame (101), the positioning magnet (201) drives the compensation light source (204) to rotate so as to be flush with the gap after the curvature changes.

2. The full-angle flexible splicing LED screen according to claim 1, characterized in that: The compensation component (2) further comprises a mounting groove (206) and a reflection plate (205); the reflection plate (205) is arranged inside the compensation light source (204); the mounting groove (206) is provided on both sides of the display unit (103); the compensation light source (204) is hinged to the inner wall of the mounting groove (206) via a torsion spring; the positioning magnet (201) is in a "T" shape and one end is connected to the frame (101) and the other end extends into the mounting groove (206); the compensation light source (204) is an LED light bar; the lamp beads on the compensation light source (204) are parallel to the lamp beads on the display unit (103); and the reflection plate (205) is in an outwardly convex arc shape.

3. The full-angle flexible splicing LED screen according to claim 2, characterized in that: A magnetic column (202) and a magnetic groove (203) are also provided at the edge of the adjacent positioning magnet (201); the magnetic groove (203) is concentric with the magnetic column (202); the magnetic column (202) is provided on the left side of a single display unit (103); and the magnetic groove (203) is provided on the right side of a single display unit (103).

4. The full-angle flexible splicing LED screen according to claim 3, characterized in that: The magnetic slot (203) is U-shaped and is opened toward the outside of the display unit (103).

5. The full-angle flexible splicing LED screen according to claim 2, characterized in that: The contact surfaces of the reflection plates (205) on the adjacent two sides are also provided with gear parts (2051) that mesh with each other.

6. The full-angle flexible splicing LED screen according to claim 3, characterized in that: A C-shaped nylon buckle (2031) is also provided in the magnetic groove (203), and the C-shaped nylon buckle (2031) is concentric with the magnetic groove (203). A surrounding groove (2021) is also provided on the magnetic column (202), and the C-shaped nylon buckle (2031) is slidably connected to the groove (2021).

7. The full-angle flexible splicing LED screen according to claim 1, characterized in that: The positioning magnet (201) and the display unit (103) are also wrapped with rubber (3) at the back, and the rubber (3) is also provided with deformation grooves (301) arranged in an array, and the deformation grooves (301) are in the shape of an arc convex toward the display unit (103), and the non-matching surface of the positioning magnet (201) is all wrapped by the rubber (3).

8. The full-angle flexible splicing LED screen according to claim 2, characterized in that: Damping washers (2041) are provided at the hinged locations at the upper and lower ends of the compensation light source (204).

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