Positioning device, display screen and installation method thereof

Abstract

The present invention relates to a positioning device, a display screen and an installation method thereof, wherein the positioning device is used to connect a box of a display module. The positioning device includes a gap positioning component and an angle positioning component. The gap positioning component includes two rotationally connected simulation boards, the two simulation boards are detachably connected to two boxes to be assembled, and are used to simulate the splicing state of the display panels of the display modules, the two simulation boards are rotationally connected, the first fitting surfaces of the two simulation boards are respectively fitted with the front end surfaces of the boxes to be spliced, and the side walls of the two boxes to be assembled are respectively flush with the sides of the two simulation boards; the angle positioning component includes a connecting block, the connecting block includes two second fitting surfaces set at preset angles, and the rear end surface of the box is fitted with the second fitting surface. The positioning device of the present invention ensures the accuracy of the angle and gap between the boxes while avoiding interference in the installation of the connecting module.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a positioning device, a display screen and a mounting method thereof. Background Art

[0002] LED display screens have the advantages of bright colors, wide dynamic range, high brightness, long life, stable and reliable operation, etc. They are widely used in life. With the popularization of LED display screens, more and more users have put forward higher requirements for the display effects of LED display screens. Compared with straight screens, the display screens have better visual effects, and the display screen images will not be deformed when viewed from different angles. Therefore, they are increasingly favored by the market.

[0003] Large LED display screens usually contain multiple groups of LED display modules that can be spliced ​​together. Display modules are usually divided into display panels and cabinets. In order to avoid damage to the display panels during the installation process, multiple cabinets are usually spliced ​​to the appropriate position first, and then the display panels are installed one by one. The angle between the cabinet and the side wall of the conventional LED display screen is 0 degrees, that is, the screen is straight. The display effect of the display module after splicing depends on the splicing gap of the module display surface. When the screen needs to have an inner arc display effect, when the curvature of the screen is different, the angle of the gap between the side walls of the cabinet will be different. Therefore, when installing the display module, it is difficult to ensure the accuracy of the display module side wall angle while ensuring the accuracy of the display module front gap. Summary of the invention

[0004] Based on this, it is necessary to provide a positioning device, a display screen and an installation method thereof to solve the problem that it is difficult to ensure the accuracy of the side wall angle and the front gap of the LED display module of the display screen.

[0005] In one aspect, the present invention provides a positioning device for connecting a box body of a display module, wherein the box body is used to install a display panel of the display module, and the positioning device comprises:

[0006] A gap positioning assembly, comprising two simulation boards, the simulation boards comprising a first bonding surface and a side surface adjacent to the first bonding surface, the two simulation boards being detachably connected to the two boxes to be assembled, and used to simulate the splicing state of the display panels of the two display modules, the two simulation boards being rotatably connected with the splicing edge of the two boards on the side farther from the boxes as the rotation axis, the first bonding surfaces of the two simulation boards being respectively bonded to the front end surfaces of the boxes to be assembled, and the side walls of the two boxes to be assembled for splicing being respectively flush with the side surfaces of the two simulation boards;

[0007] The angle positioning component comprises a connecting block, wherein the connecting block comprises two second fitting surfaces arranged at preset angles, and when the box body is connected to the connecting block, the rear end surface of the box body fits with the second fitting surfaces.

[0008] In one embodiment, the simulation board is provided with a positioning pin, the positioning pin is arranged on the first fitting surface, the box body is provided with a positioning hole, and when the first fitting surface is fitted with the front end surface, the positioning pin is inserted into the positioning hole.

[0009] In one of the embodiments, at least one positioning pin on the above-mentioned simulation board is a telescopic positioning pin. When the telescopic positioning pin is in an extended position, the telescopic positioning pin is inserted into the positioning hole. When the telescopic positioning pin is in a retracted position, the end face of the telescopic positioning pin is not higher than the first fitting surface.

[0010] In one of the embodiments, the telescopic positioning pin is threadedly connected to the simulation board.

[0011] In one embodiment, the gap positioning assembly includes an elastic member, and when the elastic member is in a free state, the telescopic positioning pin is pressed against the extended position.

[0012] In one embodiment, the box is provided with a magnet, and the end face of the magnet facing away from the box is not higher than the front end face. The simulation board is made of magnetic metal material. When the simulation board is placed on the box, it is adsorbed by the magnet and the first bonding surface is bonded to the front end face.

[0013] In one embodiment, the box body is provided with a magnet, and the end face of the magnet facing away from the box body is not higher than the front end face. The simulation board is made of non-magnetic material, and the simulation board is embedded with an iron sheet for adsorbing with the magnet to adhere the first bonding surface to the front end face.

[0014] In one embodiment, the angle positioning assembly includes a bolt, the bolt includes a nut and a threaded segment, the box includes a connecting hole, the connecting block includes a threaded hole, the threaded segment passes through the connecting hole and cooperates with the threaded hole to lock the box and the connecting block.

[0015] In one of the embodiments, the simulation board is provided with a through hole, and the bolt passes through the through hole to lock the box body and the connecting block.

[0016] In one embodiment, the two simulation boards are rotatably connected via a hinge.

[0017] In one embodiment, the preset angle between the two second fitting surfaces ranges from 150° to 180°.

[0018] In another aspect, the present invention provides a display screen installation method, comprising the following steps:

[0019] Providing a positioning device as described above;

[0020] The first bonding surfaces of the two simulation boards are respectively bonded to the front end surfaces of the boxes of the two display modules, and the side walls of the two boxes for splicing are respectively aligned with the side surfaces of the two simulation boards;

[0021] Rotate the simulation board and the box body so that the rear end surfaces of the two boxes are respectively attached to the two second attaching surfaces of the connecting block;

[0022] Locking the two boxes with the connecting block;

[0023] removing the gap positioning assembly;

[0024] The display panel is installed on the box.

[0025] On the other hand, the present invention provides a display screen, including the above positioning device, or obtained by using the above display screen installation method.

[0026] The above-mentioned positioning device connects the boxes of the display module at a preset angle through the gap positioning component and the angle positioning component, thereby ensuring the accuracy of the angle between the boxes. The installation position of the display panel when installed on the box is simulated through the simulation board, thereby ensuring that there is no mutual interference when the display panels are installed. The accuracy of the front gap after the two display panels are connected is ensured by aligning the adjacent side walls of the two boxes with the sides of the simulation board. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a box of a display screen in one embodiment;

[0028] Figure 2 This is a structural schematic diagram of a positioning device connected to a box body according to an embodiment;

[0029] Figure 3 A top view of a positioning device connected to a box body according to an embodiment;

[0030] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0031] Figure 5 It is a structural schematic diagram of a gap positioning assembly of a positioning device according to an embodiment;

[0032] Figure 6 A rear view of a gap positioning assembly of a positioning device according to an embodiment;

[0033] Figure 7 It is a schematic structural diagram of a positioning pin in a positioning device of an embodiment;

[0034] Figure 8 The figure is a flowchart of a method for installing a display screen in one embodiment. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] Combination Figures 1 to 5 As shown, Figure 1 FIG. 1 shows a schematic diagram of the structure of a box body in an embodiment of the present invention. Figure 2 This is a schematic structural diagram of a positioning device connected to a box body according to an embodiment of the present invention. Figure 3 This is a top view of a positioning device connected to a box body according to an embodiment of the present invention. Figure 4 for Figure 3 The enlarged view of point A in the middle. Figure 5 Schematic diagram of the structure of a gap positioning assembly of an embodiment of the present invention. The positioning device of the present invention is used to connect the box 20 of the display module, and the box 20 is used to connect with the display panel of the display module. By connecting multiple boxes 20 and installing display panels on the boxes 20 respectively, the positioning device can connect multiple groups of display modules to form a display screen. The positioning device of the present invention includes a gap positioning assembly 100 and an angle positioning assembly 200.

[0042] The gap positioning assembly 100 includes two simulation boards 110, and the simulation boards 110 include a first fitting surface 111 and a side surface 116 adjacent to the first fitting surface 111. Normally, the side surface 116 is arranged perpendicular to the first fitting surface 111. The two simulation boards 110 are respectively detachably connected to two boxes 20 to be connected, and are used to simulate the splicing state when the two boxes 20 are correspondingly installed with display panels. The two simulation boards 110 are rotatably connected, and the rotation axis is the splicing edge of the two simulation boards 110 farther from the box 20. The splicing edge in the present invention can be understood as the position of the corresponding splicing gap when the side surfaces 116 of the two simulation boards 110 are relatively spliced ​​together, that is, the two simulation boards 110 in the present invention are rotatably connected with the edges that are always in contact with each other during their rotation as the rotation axis. The first fitting surface 111 fits with the front end surface 24 of the box 20 to be assembled, and the side walls 25 of the two boxes 20 to be assembled for assembly are flush with the side surfaces 116 of the two simulation boards 110. The angle positioning assembly 200 includes a connecting block 210, and the connecting block 210 is provided with two second fitting surfaces 211 set at a preset angle. When the box 20 is connected to the connecting block 210, the rear end surface 26 of the box 20 fits with the second fitting surfaces 211.

[0043] The positioning device of the present invention, during the process of connecting the box 20 of the display module, sets the rotating shaft 121 of the two simulation boards 110 of the gap positioning assembly 100 at the splicing edge farther from the box 20. When the two simulation boards 110 are attached to the front end surface 24 of the box 20 at a certain angle, the two rotating connected simulation boards 110 simulate the installation effect when the display panel is installed on the box 20. At this time, the box 20 can be set at any angle with the simulation boards 110, for example, the two simulation boards can be 155°, 165° or 175°. Through the simulation of the gap positioning component 100, interference between the two display panels can be avoided when the display panels are installed. The angle positioning component 200 fits with the rear end surface 26 of the box body 20, thereby ensuring the accuracy of the angle between the boxes 20. Moreover, through the cooperation of the angle positioning component 200 and the gap positioning component 100, when the box body 20 is connected to the angle connection component, the accuracy of the gap between the boxes 20 is also ensured, which not only improves the display effect after the display modules are spliced, but also eliminates the need to readjust the relative position of the box body 20 when installing the display panel. While simplifying the installation steps, it also reduces the possibility of damage to the display panel during the installation process.

[0044] The thickness of the simulation board 110 of the present invention is configured according to the actual display panel, and can be thicker or thinner than the display panel. For example, in some embodiments, when the display panel thickness is 5mm, the thickness of the simulation board 110 can be 4.5mm to 6mm, for example, the thickness of the simulation board 110 is 4.5mm, 5mm, 5.5mm or 6mm. In other embodiments, when the display panel thickness is 30mm, the thickness of the simulation board 110 can be 28mm to 32mm, for example, the thickness of the simulation board 110 is 28mm, 29mm, 30mm or 32mm.

[0045] Combination Figure 6 As shown, in some embodiments, the simulation board 110 is provided with a positioning pin 112, the positioning pin 112 is provided on the first fitting surface 111, the axis of the positioning pin 112 is perpendicular to the first fitting surface 111, the box body 20 is provided with a positioning hole 21, the positioning hole 21 is provided on the front end surface 24 of the box body 20, when the first fitting surface 111 is fitted with the front end surface 24, the positioning pin 112 is inserted into the corresponding positioning hole 21, and is used for positioning between the simulation board 110 and the box body 20. The advantage of providing the positioning pin 112 is that, on the one hand, the position accuracy between the simulation board 110 and the box body 20 is guaranteed, and the accuracy of the gap and angle after the box body 20 is connected is avoided to decrease due to the relative sliding between the simulation board 110 and the box body 20 during operation. On the other hand, when two boxes 20 connected with simulation boards 110 are set at a certain angle, that is, when the axes of the positioning pins 112 of the two simulation boards 110 are not parallel, the positioning pins 112 can be used to prevent the gap positioning assembly 100 attached to the box 20 from falling off.

[0046] In this embodiment, each simulation board 110 may be provided with a plurality of positioning pins 112. The advantage of providing a plurality of positioning pins 112 on the same simulation board 110 is that the positioning accuracy between the simulation board 110 and the housing 20 can be further improved. The positioning hole 21 can be a positioning hole 21 provided on the housing 20 specifically for positioning the simulation board 110, or a screw hole on the housing 20 for connecting with the display panel. The advantage of using a screw hole as the positioning hole 21 is that it can avoid opening a special positioning hole on the housing 20, simplifying the structure of the housing 20, which is conducive to reducing the production cost of the housing 20, and avoiding the weakening of the strength of the housing 20 by opening redundant holes.

[0047] In some embodiments, the positioning pin 112 on at least one simulation board 110 is a telescopic positioning pin 1121. Specifically, the positioning pin 112 of one simulation board 110 can be set as a telescopic positioning pin 1121, and a fixed positioning pin 1122 can be set on the other simulation board 110. When the telescopic positioning pin 1121 is in the extended position, the telescopic positioning pin 1121 can be extended into the positioning hole 21. When the telescopic positioning pin 1121 is in the retracted position, the end surface of the positioning pin 112 is not higher than the first fitting surface 111. After the two boxes 20 are installed on the connecting block 210 at a certain angle, the telescopic positioning pin 1121 on one of the simulation boards 110 is adjusted to the retracted position, and the gap positioning assembly 100 can be removed along the axial direction of the fixed positioning pin 1122 on the other simulation board 110. The advantage of setting the telescopic positioning pin 1121 on the simulation board 110 is to avoid damage to the positioning pin 112 when the gap positioning assembly 100 is directly removed.

[0048] Combination Figure 4 As shown, in some of the embodiments, the telescopic positioning pin 1121 is threadedly connected to the simulation board 110. Specifically, the extension and retraction of the telescopic positioning pin 1121 can be adjusted by a screwdriver or an Allen wrench.

[0049] Combination Figure 7 As shown, in some embodiments, the telescopic positioning pin 1121 is elastically connected to the simulation board 110, and an elastic member 113 is provided in the gap positioning assembly 100. When the elastic member 113 is in a free state, the telescopic positioning pin 1121 is pushed against the extended position. Specifically, the telescopic positioning pin 1121 includes a plug-in portion 1121a, a step portion 1121b and an adjustment portion 1121c. The plug-in portion 1121a is used to cooperate with the positioning hole 21, and the step portion 1121b is used to limit the axial position of the telescopic positioning pin 1121. The elastic member 113 is sleeved on the adjustment portion 1121c. When the elastic member 113 is in a free state, the elastic member 113 pushes the telescopic positioning pin 1121 against the extended position. When the telescopic positioning pin 1121 needs to be retracted, the telescopic positioning pin 1121 can be pulled back through the adjustment portion 1121c. The advantage of such a configuration is that when the gap positioning assembly 100 is disassembled, the telescopic positioning pin 1121 can be directly adjusted to the retracted state through the adjustment portion 1121c without using a special adjustment tool, thereby simplifying the disassembly process and improving the efficiency of installation.

[0050] In some embodiments, the box 20 is provided with a magnet 22, which is embedded on the front end face 24, and the end face of the magnet 22 facing away from the box 20 is not higher than the front end face 24 of the box 20. The simulation board 110 is made of magnetic metal, for example, it can be made of iron or iron alloy. When the simulation board 110 is placed on the box 20, it is adsorbed by the magnet 22, and the first fitting surface 111 fits on the front end face 24, so that the simulation board 110 and the box 20 are detachably connected. The advantage of providing the magnet 22 on the box 20 is that when the box 20 is connected, it can be used to detachably connect the gap positioning assembly 100 and the box 20. When the display panel is installed, the magnet 22 can also be used to fit the display panel with the box 20.

[0051] In some embodiments, the simulation board 110 may also be made of non-magnetic material, and the simulation board 110 is embedded with a patch or a magnet for adsorbing with the magnet 22 on the box 20, and the first fitting surface 111 is fitted on the front end surface 24, so as to realize the detachable connection between the simulation board 110 and the box 20. The advantage of setting the simulation board 110 as a non-magnetic material and embedding an iron sheet 114 or a magnet 22 is that not only the detachable connection between the simulation board 110 and the box 20 is realized, but also the magnetism of the magnet 22 can be used to realize the positioning of the simulation board 110 and the box 20 on the first fitting surface 111.

[0052] Preferably, the simulation board 110 can be made of transparent plastic, for example, PMMA (polymethyl methacrylate), PS (polystyrene), PC (polycarbonate) or ABS (acrylonitrile-butadiene-styrene plastic) and the like, and the specific material of the simulation board 110 is not limited here. The advantage of setting the simulation board 110 as transparent plastic is that when installing the simulation board 110, the specific structure and position of the box 20 can be directly observed through the simulation board 110, which helps to improve the efficiency of connecting the box 20.

[0053] In other embodiments, the simulation board 110 and the box body 20 may be detachably connected by snap-fit, threaded connection, or by traceless removable glue or traceless double-sided tape. Here, the connection method between the simulation board 110 and the box body 20 is not limited.

[0054] In some embodiments, the angle positioning assembly 200 includes a bolt 220, which includes a nut 221 and a threaded segment 222. The box body 20 is provided with a connecting hole 23, and the connecting block 210 is provided with a threaded hole. The axis of the threaded hole is perpendicular to the second mating surface 211, and the threaded segment 222 passes through the connecting hole 23 to lock the box body 20 and the connecting block 210.

[0055] Combination Figure 5As shown, in some embodiments, the simulation board 110 is provided with a through hole 115 for the bolt 220 and / or a tool for installing the bolt 220 to pass through, and the radial dimension of the through hole 115 is greater than the radial dimension of the nut 221. When the simulation board 110 is attached to the box body 20, the projection of the connecting hole 23 on the plane where the simulation board 110 is located falls into the through hole 115. When installing the bolt 220, the bolt 220 can be operated through the through hole 115 to lock the box body 20 with the connecting block 210. The advantage of providing the through hole 115 is that the distance between the connecting hole 23 on the box body 20 and the side wall 25 can be reduced, which is helpful for controlling the size of the connecting block 210 and reducing the production cost of the positioning device.

[0056] In other embodiments, the box 20 and the connecting block 210 may be connected in other detachable ways such as snaps. The advantage of connecting the box 20 and the connecting block 210 in a detachable way is that the display module is easy to disassemble after connection, which is beneficial to the maintenance and transportation of the display module and the positioning device.

[0057] In other embodiments, the box body 20 and the connecting block 210 may also be connected in a non-detachable manner, for example, by gluing, welding, or riveting. The advantage of connecting the box body 20 and the connecting block 210 in a non-detachable manner is that the connection between the box bodies 20 is more stable, and the wind and vibration resistance of the display module after splicing is better.

[0058] In some embodiments, the angle positioning assembly 200 further includes a support member 230, which is disposed on the side of the connection block 210 away from the box body 20, and is used to support the display modules after splicing. In this embodiment, the connection block 210 is not only used to connect the display modules, but also to support the display modules. At the same time, compared with supporting each display module, arranging the support member 230 on the connection block 210 not only helps to reduce the number of support members 230, but also helps to simplify the structure of the box body 20, thereby saving manufacturing costs.

[0059] In this embodiment, the support member 230 is connected to the connection block 210 by bolts 220. The advantage of this arrangement is that the support member 230 and the connection block 210 are easy to install and disassemble, which is beneficial to the maintenance and transportation of the display module and the positioning device. In other embodiments, the support member 230 and the connection block 210 can also be set as an integrated structure. The advantage of this arrangement is that the structure of the angle positioning assembly 200 is more stable, and the windproof and vibration-resistant performance of the display module after splicing is better.

[0060] In some embodiments, the two simulation boards 110 are connected by a hinge 120, and the hinge 120 includes a rotating shaft 121 and a bonding board 122 rotatably connected by the rotating shaft 121. In other embodiments, the two simulation boards 110 can also be connected by other rotating connection methods, and the connection method of the simulation boards 110 is not limited here.

[0061] In some embodiments, the preset angle between the two second fitting surfaces 211 of the connecting block 210 ranges from 150° to 180°, for example, it may be 150°, 160°, 170° or 180°.

[0062] Combination Figure 8 As shown, Figure 8 A flowchart of a display screen installation method in an embodiment of the present invention is shown. The present invention also provides a display screen installation method, comprising the following steps:

[0063] Step S102, providing a positioning device 10;

[0064] Step S104, respectively attaching the first bonding surfaces 111 of the two simulation boards 110 to the front end surfaces 24 of the boxes 20 of the two display modules, and aligning the side walls 25 of the two boxes 20 to be assembled with the side surfaces 116 of the two simulation boards 110;

[0065] Step S106, rotating the simulation board 110 and the box body 20, so that the rear end surfaces 26 of the two boxes 20 are respectively attached to the two second attaching surfaces 211 of the connecting block 210;

[0066] Step S108, locking the two boxes 20 and the connecting block 210;

[0067] Step S110, removing the gap positioning assembly 100 attached to the front end surface 24 of the box body 20;

[0068] Step S112 , installing a display panel on each box 20 .

[0069] The display screen installation method of the present invention forms an arc-shaped display screen by splicing multiple planar display modules at a certain angle. During the installation process, two rotating connected simulation boards 110 are used to simulate the installation effect when the display panel is installed on the box 20, avoiding the mutual interference of the two display panels when the display panel is installed. The angle positioning component 200 is fitted with the rear end face 26 of the box 20 to ensure the accuracy of the angle between the boxes 20, and the angle positioning component 200 and the gap positioning component 100 cooperate to ensure the accuracy of the gap between the boxes 20 when the box 20 is connected to the angle connection component. Therefore, the use of this installation method not only improves the display effect after the display module is spliced, but also eliminates the need to readjust the relative position of the box 20 when installing the display panel during the installation process, while simplifying the installation steps, it also avoids damage to the display panel during the installation process.

[0070] The present invention further provides a display screen, comprising the positioning device 10, or installed by using the display screen installation method.

[0071] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A positioning device, used to connect a box of a display module, wherein the box is used to install a display panel of the display module, characterized in that: The positioning device includes: A gap positioning assembly, comprising two simulation boards, the simulation boards comprising a first bonding surface and a side surface adjacent to the first bonding surface, the two simulation boards being detachably connected to the two boxes to be assembled, and used to simulate the splicing state of the display panels of the two display modules, the two simulation boards being rotatably connected with the splicing edge of the two boards on the side farther from the boxes as the rotation axis, the first bonding surfaces of the two simulation boards being respectively bonded to the front end surfaces of the boxes to be assembled, and the side walls of the two boxes to be assembled for splicing being respectively flush with the side surfaces of the two simulation boards; An angle positioning assembly, comprising a connecting block, wherein the connecting block comprises two second fitting surfaces arranged at a preset angle, and when the box is connected to the connecting block, the rear end surfaces of the two boxes to be assembled are respectively fitted with the two second fitting surfaces of the connecting block; Wherein, the preset angle between the two second fitting surfaces ranges from 150° to 180°.

2. The positioning device according to claim 1, characterized in that: The simulation board is provided with a positioning pin, and the positioning pin is arranged on the first fitting surface. The box body is provided with a positioning hole. When the first fitting surface is fitted with the front end surface, the positioning pin is inserted into the positioning hole.

3. The positioning device according to claim 2, characterized in that: At least one positioning pin on the above-mentioned simulation board is a telescopic positioning pin. When the telescopic positioning pin is in an extended position, the telescopic positioning pin is inserted into the positioning hole. When the telescopic positioning pin is in a retracted position, the end surface of the telescopic positioning pin is not higher than the first fitting surface.

4. The positioning device according to claim 3, characterized in that: The telescopic positioning pin is threadedly connected to the simulation board.

5. The positioning device according to claim 3, characterized in that: The gap positioning assembly comprises an elastic member, and when the elastic member is in a free state, the telescopic positioning pin is pressed against the extended position.

6. The positioning device according to claim 1, characterized in that: The box body is provided with a magnet, and the end face of the magnet facing away from the box body is not higher than the front end face. The simulation board is made of magnetic metal material. When the simulation board is placed on the box body, it is adsorbed by the magnet and the first bonding surface is bonded to the front end face.

7. The positioning device according to claim 1, characterized in that: The box body is provided with a magnet, and the end face of the magnet facing away from the box body is not higher than the front end face. The simulation board is made of non-magnetic material, and the simulation board is embedded with an iron sheet for adsorbing with the magnet to adhere the first bonding surface to the front end face.

8. The positioning device according to claim 1, characterized in that: The angle positioning assembly includes a bolt, which includes a nut and a threaded section. The box body includes a connecting hole, and the connecting block includes a threaded hole. The threaded section passes through the connecting hole and cooperates with the threaded hole to lock the box body and the connecting block.

9. The positioning device according to claim 8, characterized in that: The simulation board is provided with a through hole, and the bolt passes through the through hole to lock the box body and the connecting block.

10. The positioning device according to claim 1, characterized in that: The two simulation boards are rotatably connected via a hinge.

11. A display screen installation method, characterized in that: The following steps are involved: Providing a positioning device as described in any one of claims 1 to 10; The first bonding surfaces of the two simulation boards are respectively bonded to the front end surfaces of the boxes of the two display modules, and the side walls of the two boxes for splicing are respectively aligned with the side surfaces of the two simulation boards; Rotate the simulation board and the box body so that the rear end surfaces of the two boxes are respectively attached to the two second attaching surfaces of the connecting block; Locking the two boxes with the connecting block; removing the gap positioning assembly; The display panel is installed on the box.

12. A display screen, characterized in that: It comprises the positioning device as described in any one of claims 1-10; or, the display screen is obtained by using the display screen installation method as described in claim 11.

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