Display screen and display device

Abstract

The utility model relates to a display screen and a display device, and the display screen comprises a first display module which is provided with a first splicing end facing a second display module, the first display module comprises a first panel and a first backboard which extend out of the first splicing end, and the second display module is provided with a second splicing end facing the first display module. The second display module comprises a second panel and a second back plate which extend out of the second splicing end; the first connecting plate is connected with the first panel and the second panel through the first fastening assembly; the second connecting plate is connected with the first back plate and the second back plate through the second fastening assembly; the lock mechanism comprises a first lock assembly and a second lock assembly, the first lock assembly is connected with the first panel and the first back plate, the second lock assembly is connected with the second panel and the second back plate, and the first lock assembly and the second lock assembly can be locked or unlocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, and in particular to a display screen and a display device. BACKGROUND

[0002] At present, the display screen of the LED all-in-one machine on the market mostly adopts a die-casting box splicing combination scheme. Limited by the manufacturing size of sheet metal plates, for an all-in-one machine product of 120 inches or more, the display screen is usually split into two or three display modules, and the display modules are spliced on site.

[0003] In the conventional technology, when splicing a large-size display module, multiple people need to cooperate with each other, and a large number of screws are used for locking and fixing, which leads to complicated on-site installation operation, large workload, high labor intensity of workers, and low installation efficiency. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a display screen and a display device to reduce the workload during on-site splicing of display modules, simplify the installation operation process, reduce the labor intensity of workers, and improve the installation efficiency.

[0005] In a first aspect, the present application provides a display screen, comprising:

[0006] a first display module and a second display module, the first display module and the second display module are arranged adjacent to each other along a first direction of the display screen, the first display module has a first splicing end arranged towards the second display module, the first display module comprises a first panel and a first back plate protruding from the first splicing end, the second display module has a second splicing end arranged towards the first display module, the second display module comprises a second panel and a second back plate protruding from the second splicing end, the first panel and the first back plate and the second panel and the second back plate are arranged side by side and spaced apart along a second direction of the display screen;

[0007] a first connecting plate and a first fastening assembly, the first connecting plate is connected with the first panel and the second panel through the first fastening assembly;

[0008] a second connecting plate and a second fastening assembly, the second connecting plate is connected with the first back plate and the second back plate through the second fastening assembly; and

[0009] a locking mechanism, the locking mechanism comprises a first locking assembly and a second locking assembly, the first locking assembly is connected with the first panel and the first back plate, the second locking assembly is connected with the second panel and the second back plate, and the first locking assembly and the second locking assembly can be locked or unlocked.

[0010] In the display screen of the present scheme, when the first display module and the second display module are assembled on site, first, the first splicing end and the second splicing end are opposite, then the first connecting plate and the first panel are assembled and fixed by using the first fastening assembly, and the second connecting plate and the first back plate are assembled and fixed by using the second fastening assembly, at the same time, the first lock assembly is installed and fixed with the first panel and the first back plate, and the second lock assembly is installed and fixed with the second panel and the second back plate; then the first splicing end and the second splicing end are pushed towards each other to slowly approach, in this process, the first connecting plate and the second connecting plate also slowly extend into the second panel and the second back plate at the same time, finally, the first fastening assembly is assembled and fixed with the second panel, the second fastening assembly is assembled and fixed with the second back plate, and the first lock assembly and the second lock assembly are locked, that is, the first display module and the second display module are assembled; compared with the traditional technology, the number of screws used and the locking operation steps are greatly reduced, the on-site installation operation is convenient, the labor intensity of workers is reduced, and the display screen assembly efficiency is improved.

[0011] The technical scheme of the present application is further described below:

[0012] In one of the embodiments, the first fastening assembly comprises at least one first fastening connecting piece and at least one second fastening connecting piece, the first connecting plate is connected with the first panel through the first fastening connecting piece, and the first connecting plate is connected with the second panel through the second fastening connecting piece.

[0013] In one of the embodiments, the second fastening assembly comprises at least one third fastening connecting piece and at least one fourth fastening connecting piece, the second connecting plate is connected with the first back plate through the third fastening connecting piece, and the second connecting plate is connected with the second back plate through the fourth fastening connecting piece.

[0014] In one of the embodiments, the second panel is provided with a through hole, the fourth fastening connecting piece adopts a non-loose screw, and the through hole and the non-loose screw are arranged in position.

[0015] In one of the embodiments, the first lock assembly comprises a first lock shell, a first positioning pin is protruded on the outer wall of the first lock shell, the first panel is provided with a first positioning hole, and the first positioning pin is arranged in the first positioning hole;

[0016] And / or, the second lock assembly comprises a second lock shell, a second positioning pin is protruded on the outer wall of the second lock shell, the second panel is provided with a second positioning hole, and the second positioning pin is arranged in the second positioning hole.

[0017] In one of the embodiments, the first lock shell has a first joint surface facing the second lock shell, the second lock shell has a second joint surface facing the first lock shell, one of the first joint surface and the second joint surface is provided with a guide post, and the other of the first joint surface and the second joint surface is provided with a guide hole, and the guide post is arranged in the guide hole.

[0018] In one of the embodiments, the first lock assembly further comprises a lock hook rotatably arranged in the first lock shell, and the second lock assembly further comprises a lock rod arranged in the second lock shell, and the lock hook can be locked or separated from the lock rod.

[0019] In one of the embodiments, the first panel is provided with a first operation through hole, a shell wall of the first lock shell is provided with a second operation through hole in communication with the first operation through hole, the second operation through hole is in alignment with the lock hook, an outer surface of the first panel is provided with a locking mark and an unlocking mark, the lock hook is locked with the lock rod when the lock hook is arranged in correspondence with the locking mark, and the lock hook is separated from the lock rod when the lock hook is arranged in correspondence with the unlocking mark.

[0020] In one of the embodiments, a first bending part is formed on a side of the first connecting plate away from the first display module and facing the second connecting plate, a second bending part is formed on a side of the second connecting plate away from the second display module and facing the first connecting plate, and the first bending part and the second bending part cooperate to form a guide structure.

[0021] The second aspect of the present application further provides a display device comprising the display screen as described above. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings which form a part of this application are intended to provide further understanding of the present application and are incorporated herewith for explanation by way of the non-limiting illustrations of the exemplary embodiments of the present application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0024] Figure 1 The partial structural schematic diagram of the display screen in one of the embodiments of the present application.

[0025] Figure 2 The partial structural schematic diagram of the display screen in one of the embodiments of the present application. Figure 1 The partial enlarged structural schematic diagram of A in the figure.

[0026] Figure 3 For Figure 1 The side view structure schematic diagram of the display screen in the middle.

[0027] Figure 4 For Figure 3 The partial enlarged structure schematic diagram of B in the middle.

[0028] Figure 5 The exploded structure schematic diagram of the display screen.

[0029] Figure 6 For Figure 5 The partial enlarged structure schematic diagram of C in the middle.

[0030] Figure 7 For Figure 5 The structure schematic diagram of the rear view angle.

[0031] Figure 8 For Figure 7 The partial enlarged structure schematic diagram of D in the middle.

[0032] Explanation of reference signs:

[0033] 100, display screen; 110, first display module; 120, second display module; 10, first panel; 11, first positioning hole; 12, first operation through hole; 13, locking mark; 14, unlocking mark; 10a, first back plate; 20, second panel; 21, second positioning hole; 20a, second back plate; 30, first connecting plate; 31, first bending part; 40, second connecting plate; 41, second bending part; 50, lock mechanism; 51, first lock assembly; 511, first lock shell; 511a, second operation through hole; 512, first positioning pin; 513, guide column; 514, lock hook; 52, second lock assembly; 521, second lock shell; 522, second positioning pin; 523, guide hole; 524, lock rod; 60, first fastening connecting piece; 60a, second fastening connecting piece; 60b, third fastening connecting piece; 60c, fourth fastening connecting piece. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more apparent and understandable, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0035] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0036] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0037] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] It is to be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be an intervening element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are used for illustrative purposes only and are not intended to be limiting.

[0040] Limited by the manufacturing size of sheet metal, for the integrated machine product of 120 inches and above, the display screen 100 is usually split into 2 or 3 parts of display modules, and the parts of display modules are assembled on site. In the traditional technology, for the assembly of large-size display modules, multiple people need to cooperate with each other, and a large number of screws are used for locking and fixing, which leads to complicated on-site installation operation, large workload, large labor intensity of workers, and low installation efficiency.

[0041] In view of the problems existing in the above-mentioned prior art, the present application proposes a new technical solution for assembling two adjacent display modules by means of the cooperation of the fastening mechanism and the locking mechanism 50. The locking mechanism 50 can replace part of the threaded connection structure, and is convenient to install and use, can greatly reduce the on-site threaded installation workload, reduce the labor intensity of workers, and improve the assembly operation efficiency of display modules.

[0042] Exemplarily, please refer to Figure 1 A display screen 100 according to an embodiment of the present application includes a first display module 110, a second display module 120, a first connecting plate 30, a first fastening assembly, a second connecting plate 40, a second fastening assembly, and a locking mechanism 50.

[0043] It is to be noted that, for the purpose of understanding the description and understanding the technical solution, only the installation structure of the first display module 110 and the second display module 120 is described below, but this does not mean a limitation on the number of display modules included in the display screen 100. That is, the display screen 100 can include two or more display modules, and the splicing structure between any two adjacent display modules is implemented by the structure described in the present application.

[0044] It is to be noted that the first display module 110 in the drawing only shows the first panel 10 and the first back plate 10a, and the second display module 120 only shows the second panel 20 and the second back plate 20a, and the components such as the box body and the screen unit of the display module are omitted.

[0045] The display screen 100 in the present application is a cuboid structure, so the display screen 100 has at least a length direction, a width direction, and a thickness direction.

[0046] The first display module 110 and the second display module 120 are arranged adjacent along a first direction of the display screen 100. The first direction here refers to the length direction or the width direction of the display, for example, the S1 arrow in the figure points to. Figure 1

[0047] The first display module 110 has a first splicing end arranged towards the second display module 120, and the first display module 110 includes a first panel 10 and a first back plate 10a extending out of the first splicing end. The second display module 120 has a second splicing end arranged towards the first display module 110, and the second display module 120 includes a second panel 20 and a second back plate 20a extending out of the second splicing end. The first panel 10 and the first back plate 10a and the second panel 20 and the second back plate 20a are arranged side by side and spaced apart along a second direction of the display screen 100. The second direction here refers to the thickness direction of the display screen 100, for example, the S2 arrow in the figure points to. Figure 4

[0048] The first connecting plate 30 is connected with the first panel 10 and the second panel 20 through the first fastening assembly. The second connecting plate 40 is connected with the first back plate 10a and the second back plate 20a through the second fastening assembly. The lock mechanism 50 includes a first lock assembly 51 and a second lock assembly 52. The first lock assembly 51 is connected with the first panel 10 and the first back plate 10a. The second lock assembly 52 is connected with the second panel 20 and the second back plate 20a. The first lock assembly 51 and the second lock assembly 52 can be locked or unlocked.

[0049] In summary, the display screen 100 of the present embodiment has the following beneficial effects. When the first display module 110 and the second display module 120 are assembled on site, the first splicing end and the second splicing end are first aligned. Then the first connecting plate 30 is assembled and fixed with the first panel 10 through the first fastening assembly, and the second connecting plate 40 is assembled and fixed with the first back plate 10a through the second fastening assembly. At the same time, the first lock assembly 51 is installed and fixed with the first panel 10 and the first back plate 10a, and the second lock assembly 52 is installed and fixed with the second panel 20 and the second back plate 20a. Then the first splicing end and the second splicing end are pushed towards each other to gradually approach each other. In this process, the first connecting plate 30 and the second connecting plate 40 also gradually extend into the space between the second panel 20 and the second back plate 20a. Finally, the first fastening assembly is assembled and fixed with the second panel 20, the second fastening assembly is assembled and fixed with the second back plate 20a, and the first lock assembly 51 and the second lock assembly 52 are locked. Thus, the first display module 110 and the second display module 120 are assembled. Compared with the traditional technology, the number of screws used and the locking operation steps are greatly reduced, the on-site installation operation is convenient, the labor intensity of workers is reduced, and the assembly efficiency of the display screen 100 is improved. ​​

[0050] In the present application, the first connecting plate 30 and the second connecting plate 40 are specifically made of sheet metal parts, which are easy to obtain, have high structural strength, and good connection reliability.

[0051] In one embodiment, the first fastening assembly includes at least one first fastening connecting piece 60 and at least one second fastening connecting piece 60a, the first connecting plate 30 is connected with the first panel 10 through the first fastening connecting piece 60, and the first connecting plate 30 is connected with the second panel 20 through the second fastening connecting piece 60a. In this way, by arranging the first fastening connecting piece 60 and the second fastening connecting piece 60a, the first connecting plate 30 can be connected and fixed with the first panel 10 and the second panel 20 respectively, and the panel splicing of the first display module 110 and the second display module 120 is completed.

[0052] For example, the first fastening connecting piece 60 and the second fastening connecting piece 60a are both made of connecting components such as screws, press-in nuts + screws, etc., which can be flexibly selected according to actual needs.

[0053] It should be noted that, considering that the size of the first panel 10 and the second panel 20 is large (because the display screen 100 involved in the present application is a large screen product of 120 inches or more), the first fastening connecting piece 60 and the second fastening connecting piece 60a should be arranged in an appropriate number, each first fastening connecting piece 60 is installed along the length extension direction of the first panel 10 at intervals, each second fastening connecting piece 60a is installed along the length extension direction of the second panel 20 at intervals, and the number of connecting points is increased to ensure the connection reliability of the first connecting plate 30 with the first panel 10 and the second panel 20.

[0054] Similarly, the second fastening assembly includes at least one third fastening connecting piece 60b and at least one fourth fastening connecting piece 60c, the second connecting plate 40 is connected with the first back plate through the third fastening connecting piece 60b, and the second connecting plate 40 is connected with the second back plate through the fourth fastening connecting piece 60c. In this way, by arranging the third fastening connecting piece 60b and the fourth fastening connecting piece 60c, the second connecting plate 40 can be connected and fixed with the first back plate 10a and the second back plate 20a respectively, and the back plate splicing of the first display module 110 and the second display module 120 is completed.

[0055] For example, the third fastening connecting piece 60b can be made of connecting components such as screws, press-in nuts + screws, etc., which can be flexibly selected according to actual needs.

[0056] It should be noted that, considering that the sizes of the first back plate 10a and the second back plate 20a are large (because the display screen 100 involved in the present application is a large screen product of 120 inches or more), the third fastening connector 60b and the fourth fastening connector 60c should be provided in a suitable number, each third fastening connector 60b is installed along the length extension direction of the first back plate 10a at intervals, each fourth fastening connector 60c is installed along the length extension direction of the second back plate 20a at intervals, and the connection reliability of the second connecting plate 40 to the first back plate 10a and the second back plate 20a is ensured by increasing the number of connection points.

[0057] In an optional embodiment, the second panel 20 is provided with a through hole, and the fourth fastening connector 60c is a non-removable screw, and the through hole and the non-removable screw are arranged in a corresponding manner. In some installation scenarios, the display screen 100 needs to be installed by being attached to a wall surface, a mounting bracket or the like. At this time, the first back plate 10a and the second back plate 20a will be attached to the wall surface or the like, so that it is impossible to lock the second connecting plate 40 to the second back plate 20a from the back of the display screen 100, and it is also inconvenient to disassemble when the display screen 100 is faulty. In the present embodiment, the non-removable screw can be fastened and installed or disassembled from the front of the display screen 100 through the through hole of the second panel 20, thereby solving the problem of wall-attached installation and disassembly and maintenance of the display screen 100.

[0058] It is easy to understand that a part of the first connecting plate 30 is used for cooperating with the first panel 10, and another part is used for cooperating with the second panel 20, and a part of the second connecting plate 40 is used for cooperating with the first back plate 10a, and another part is used for cooperating with the second back plate 20a. When assembling, the first connecting plate 30 and the first panel 10 and the second connecting plate 40 and the first back plate 10a are first assembled and fixed, then the parts of the first connecting plate 30 and the second connecting plate 40 that protrude out of the first panel 10 and the first back plate 10a are inserted into the cavity between the second panel 20 and the second back plate 20a in a plug-in manner, and then the first connecting plate 30 and the second panel 20 and the second connecting plate 40 and the second back plate 20a are assembled and fixed.

[0059] Further, the first connecting plate 30 is formed with a first bending part 31 bent towards the second connecting plate 40 on the side away from the first display module 110, and the second connecting plate 40 is formed with a second bending part 41 bent towards the first connecting plate 30 on the side away from the second display module 120, and the first bending part 31 and the second bending part 41 cooperate to form a lead-in structure. The lead-in structure can make the first connecting plate 30 and the second connecting plate 40 more easily inserted between the second panel 20 and the second back plate 20a, and avoid movement interference with other internal structures, thereby improving assembly convenience and reliability.

[0060] Further, in yet another embodiment, the first lock assembly 51 comprises a first lock shell 511, an outer wall of the first lock shell 511 protrudes a first positioning pin 512, the first panel 10 is provided with a first positioning hole 11, and the first positioning pin 512 is arranged in the first positioning hole 11; and / or, the second lock assembly 52 comprises a second lock shell 521, an outer wall of the second lock shell 521 protrudes a second positioning pin 522, the second panel 20 is provided with a second positioning hole 21, and the second positioning pin 522 is arranged in the second positioning hole 21.

[0061] Specifically, the first positioning pin 512 is arranged on the first lock shell 511 and the second positioning pin 522 is arranged on the second lock shell 521 at the same time, so as to ensure the positioning accuracy of the first lock assembly 51 and the second lock assembly 52 during installation, and then the first lock assembly 51 can be normally locked and matched with the second lock assembly 52 after the first display module 110 and the second display module 120 are spliced.

[0062] Further, the first lock shell 511 has a first splicing surface facing the second lock shell 521, the second lock shell 521 has a second splicing surface facing the first lock shell 511, one of the first splicing surface and the second splicing surface is provided with a guide column 513, and the other of the first splicing surface and the second splicing surface is provided with a guide hole 523, and the guide column 513 is arranged in the guide hole 523. By inserting the guide column 513 into the guide hole 523, the splicing accuracy and gap in the Y-axis direction and the Z-axis direction of the first display module 110 and the second display module 120 after splicing can be ensured.

[0063] It should be noted that the height of the first splicing surface and the second splicing surface is greater than the height of the splicing surface of the first panel 10 and the second panel 20 and the first back plate 10a and the second back plate 20a, so as to make the first splicing surface and the second splicing surface cooperate to construct a positioning contact surface, and ensure the splicing accuracy and gap of the first display module 110 and the second display module 120 in the X-axis direction.

[0064] Further, on the basis of the above-mentioned embodiments, the first lock assembly 51 further comprises a lock hook 514, the lock hook 514 is rotatably arranged in the first lock shell 511, the second lock assembly 52 further comprises a lock rod 524, the lock rod 524 is arranged in the second lock shell 521, and the lock hook 514 can be locked or separated from the lock rod 524.

[0065] Further, the first panel 10 is provided with a first operation through hole 12, and the shell wall of the first lock shell 511 is provided with a second operation through hole 511a in communication with the first operation through hole 12, the second operation through hole 511a is in alignment with the lock hook 514, and the outer surface of the first panel 10 is provided with a locking mark 13 and an unlocking mark 14. When the lock hook 514 is arranged corresponding to the locking mark 13, the lock hook 514 is locked with the lock rod 524, and when the lock hook 514 is arranged corresponding to the unlocking mark 14, the lock hook 514 is separated from the lock rod 524.

[0066] Through the first operation through hole 12 and the second operation through hole 511a, the rotating operation of the lock hook 514 can be conveniently performed from the front side of the display screen 100, so that the lock hook 514 is locked or separated from the lock rod 524, and the convenience and experience of installation and disassembly operation are improved.

[0067] It should be noted that, in order to avoid idle personnel from damaging the lock mechanism 50, affecting the installation and use of the display screen 100, the lock hook 514 is provided with a special-shaped hole, and a special tool with a special-shaped plug is required to normally rotate the lock hook 514.

[0068] In addition, the display device provided by the present application comprises the display screen 100 according to any one of the above embodiments. For example, the display device can be, but is not limited to, an LED all-in-one machine, an advertising large screen, etc.

[0069] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0070] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A display screen, characterized by The display screen comprises: a first display module and a second display module, the first display module and the second display module are arranged adjacently along a first direction of the display screen, the first display module has a first splicing end arranged towards the second display module, the first display module comprises a first panel and a first backboard which extend out of the first splicing end, the second display module has a second splicing end arranged towards the first display module, the second display module comprises a second panel and a second backboard which extend out of the second splicing end, the first panel and the first backboard and the second panel and the second backboard are arranged side by side and spaced apart along a second direction of the display screen; a first connecting plate and a first fastening assembly, the first connecting plate is connected with the first panel and the second panel through the first fastening assembly; a second connecting plate and a second fastening assembly, the second connecting plate is connected with the first backboard and the second backboard through the second fastening assembly; and a lock mechanism, the lock mechanism comprises a first lock assembly and a second lock assembly, the first lock assembly is connected with the first panel and the first backboard, the second lock assembly is connected with the second panel and the second backboard, the first lock assembly and the second lock assembly can be locked or unlocked.

2. The display screen of claim 1, wherein, The first fastening assembly comprises at least one first fastening connector and at least one second fastening connector, the first connecting plate is connected with the first panel through the first fastening connector, and the first connecting plate is connected with the second panel through the second fastening connector.

3. The display screen of claim 1, wherein, The second fastening assembly comprises at least one third fastening connector and at least one fourth fastening connector, the second connecting plate is connected with the first backboard through the third fastening connector, and the second connecting plate is connected with the second backboard through the fourth fastening connector.

4. The display screen of claim 3, wherein, The second panel is provided with a through hole, the fourth fastening connector is a loose screw, and the through hole is arranged in position with the loose screw.

5. The display screen of claim 1, wherein, The first lock assembly comprises a first lock shell, an outer wall of the first lock shell is provided with a first positioning pin, the first panel is provided with a first positioning hole, and the first positioning pin is arranged in the first positioning hole. The second lock assembly comprises a second lock shell, an outer wall of the second lock shell is provided with a second positioning pin, the second panel is provided with a second positioning hole, and the second positioning pin is arranged in the second positioning hole.

6. The display screen of claim 5, wherein, The first lock shell has a first fitting surface towards the second lock shell, the second lock shell has a second fitting surface towards the first lock shell, one of the first fitting surface and the second fitting surface is provided with a guide column, and the other of the first fitting surface and the second fitting surface is provided with a guide hole, and the guide column is arranged in the guide hole.

7. The display screen of claim 5, wherein, The first lock assembly further comprises a lock hook which is rotatably arranged in the first lock shell, the second lock assembly further comprises a lock rod which is arranged in the second lock shell, and the lock hook can be locked or separated from the lock rod.

8. The display screen of claim 7, wherein, The first panel is provided with a first operation through hole, and a shell wall of the first lock shell is provided with a second operation through hole in communication with the first operation through hole, the second operation through hole is opposite to the lock hook, an outer surface of the first panel is provided with a lock mark and an unlock mark, when the lock hook corresponds to the lock mark, the lock hook is locked with the lock rod, and when the lock hook corresponds to the unlock mark, the lock hook is separated from the lock rod.

9. The display screen of claim 1, wherein, The first connecting plate is formed with a first bending part which is bent towards the second connecting plate on a side away from the first display module, the second connecting plate is formed with a second bending part which is bent towards the first connecting plate on a side away from the second display module, and the first bending part and the second bending part cooperate to form a guide-in structure.

10. A display device, characterized by comprising: A display screen comprising any one of claims 1 to 9.

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