A spliced ​​display screen

Abstract

The present invention provides a spliced ​​display screen, relating to the field of display technology. A first side wall provided with side wiring is provided with an elastic support platform and a non-elastic support platform located at least between two adjacent side wirings, and a second side wall is provided with a groove corresponding to the non-elastic support platform. After splicing is completed, the end of the non-elastic support platform away from the first side wall is embedded in the groove of the second side wall. Under the conditions of H2>H3>H1, and H3-D≥H1, the side wiring can be prevented from being worn and crushed due to contact and collision, and high-precision splicing can be achieved without affecting the size of the splicing gap.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a spliced ​​display screen. Background Art

[0002] Existing large-scale LED tiled displays are composed of multiple small sub-displays. The gap between these sub-displays is affected by the size of their bezels. To reduce the gap between these sub-displays and achieve ultra-narrow bezels or seamless displays, side routing technology is often used to connect the front and back circuits and chips of the substrate.

[0003] However, during the splicing and / or transportation process, the side wiring is easily worn and crushed due to contact and collision, resulting in the spliced ​​display screen not being able to display normally. Summary of the Invention

[0004] In view of the above problems, this application provides a spliced ​​display screen that protects the side wiring without affecting the size of the splicing gap. The specific solution is as follows:

[0005] The present application provides a spliced ​​display screen, comprising: a plurality of sub-display screens, each sub-display screen comprising a first side wall provided with side wiring; an elastic support platform and a non-elastic support platform provided on the first side wall, at least between two adjacent side wirings;

[0006] At least some of the multiple sub-displays further include a second side wall having a groove; the first side wall of one sub-display and the second side wall of the other sub-display of the two sub-displays in the spliced ​​state are arranged opposite to each other in a first direction, and an end of the non-elastic support platform away from the first side wall is embedded in the groove; the first direction is perpendicular to the plane of the first side wall;

[0007] In the first direction, the thickness of the side trace is H1, the thickness of the elastic support platform is H2, the thickness of the inelastic support platform is H3, and the depth of the groove is D; wherein H2>H3>H1, and H3-D≥H1.

[0008] With the above technical solution, the present application provides a spliced ​​display screen, on which a first side wall with side lines is provided with an elastic support platform and a non-elastic support platform located between at least two adjacent side lines. The thickness of the elastic support platform is greater than the thickness of the non-elastic support platform, which is greater than the thickness of the side lines. On the one hand, the elastic support platform and the non-elastic support platform can prevent the side lines from being worn and crushed due to contact and collision during transportation; on the other hand, after the splicing is completed, the end of the non-elastic support platform away from the first side wall is embedded in the groove of the second side wall. When H3-D=H1, the thickness of the elastic support platform will be at least equal to the thickness of the side lines after the splicing is completed based on its own elastic properties. The width of the splicing gap between the two sub-display screens in the splicing state is the same as the thickness of the side lines, thereby achieving high-precision splicing without affecting the size of the splicing gap. When H3-D>H1, a certain gap can be ensured between the side wiring and the second side wall after the splicing is completed to prevent the side wiring from being worn due to contact and collision with the second side wall. Although the width of the splicing gap between the two sub-displays in the splicing state will be greater than the thickness of the side wiring, by reasonably designing the numerical relationship of H3-D>H1, the width of the splicing gap can be made infinitely close to the thickness of the side wiring, and at this time, it will not cause too much impact on the high-precision splicing of the spliced ​​display screen, thereby achieving maximum protection for the side wiring.

[0009] Considering that the elastic life of the elastic support platform is limited, the elastic support platform may be unable to rebound after multiple expansion and contraction, that is, the thickness of the elastic support platform may be smaller than the thickness of the side routing. At this time, the design of the non-elastic support platform can ensure that even if the thickness of the elastic support platform is smaller than the thickness of the side routing, the ultimate protection of the side routing can be achieved when H3>H1 and H3-D≥H1. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0011] Figure 1 A schematic structural diagram of a sub-display screen in a spliced ​​display screen provided by an embodiment of the present invention;

[0012] Figure 2 A schematic structural diagram of two sub-display screens in an unspliced ​​state in a spliced ​​display screen provided by an embodiment of the present invention;

[0013] Figure 3A schematic structural diagram of two sub-display screens in a spliced ​​display screen provided by an embodiment of the present invention;

[0014] Figure 4 A schematic structural diagram of two sub-display screens in a spliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0015] Figure 5 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0016] Figure 6 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0017] Figure 7 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0018] Figure 8 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0019] Figure 9 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0020] Figure 10 A schematic structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention;

[0021] Figure 11 A front view of a first side wall provided by an embodiment of the present invention;

[0022] Figure 12 A front view of another first side wall provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. It should be noted that the directional words appearing in the present invention are based on the relative position relationship shown in the drawings and cannot be used as an absolute limitation on the present application.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] refer to Figure 1 , Figure 1 A schematic diagram of the structure of a sub-display screen in a spliced ​​display screen provided by an embodiment of the present invention, with reference to Figure 2 , Figure 2 A schematic diagram of the structure of two sub-display screens in an unspliced ​​state in a spliced ​​display screen provided by an embodiment of the present invention, with reference to Figure 3 , Figure 3 A schematic diagram of a structure of two sub-display screens in a spliced ​​display screen provided by an embodiment of the present invention, with reference to Figure 4 , Figure 4 A schematic structural diagram of two sub-display screens in a spliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention.

[0026] The spliced ​​display screen provided by an embodiment of the present invention includes: multiple sub-display screens 10, each sub-display screen 10 including a first side wall 12 provided with side wiring 11; the first side wall 12 is provided with an elastic support platform 13 and a non-elastic support platform 14 located at least between two adjacent side wirings 11.

[0027] At least some of the multiple sub-display screens 10 further include a second side wall 16 provided with a groove 15; the first side wall 12 of one sub-display screen 10 and the second side wall 16 of the other sub-display screen 10 of the two sub-display screens 10 in a spliced ​​state are arranged relative to each other in a first direction X, and the end of the non-elastic support platform 14 away from the first side wall 12 is embedded in the groove 15; the first direction X is perpendicular to the plane where the first side wall 12 is located.

[0028] In the first direction X, the thickness of the side trace 11 is H1, the thickness of the elastic support platform 13 is H2, the thickness of the inelastic support platform 14 is H3, and the depth of the groove 15 is D; wherein, H2>H3>H1, and H3-D≥H1.

[0029] Specifically, in the embodiments of the present invention, considering that the tiled display screen is composed of multiple sub-display screens 10, some sub-display screens 10 may not require the placement grooves 15 based on their positions. For example, if sub-display screens 10 located at the edge do not need to be extended outward to connect to other sub-display screens 10, these sub-display screens 10 may not need the placement grooves 15. Furthermore, considering that in order to facilitate the flexible splicing of tiled display screens of any size, each sub-display screen 10 may also be provided with a placement groove 15, so that sub-display screens 10 located at the edge can be extended outward to connect to other sub-display screens 10, thereby achieving flexible splicing of different sizes.

[0030] The sub-display screen 10 includes light-emitting elements, which can be LED, Mini-LED, or Micro-LED. When the light-emitting elements are LED, the spliced ​​display screen is an LED spliced ​​display screen; when the light-emitting elements are Mini-LED, the spliced ​​display screen is a Mini-LED ultra-fine pitch narrow spliced ​​gap display screen; and when the light-emitting elements are Micro-LED, the spliced ​​display screen is a Micro-LED seamless spliced ​​display screen.

[0031] like Figures 1-4 As shown, the first side wall 12 of the sub-display screen 10 is provided with five side traces 11 as an example for explanation. The first side wall 12 provided with the side traces 11 is provided with an elastic support platform 13 and a non-elastic support platform 14 located at least between two adjacent side traces 11, wherein the thickness of the elastic support platform 13 is greater than the thickness of the non-elastic support platform 14, and the thickness of the side traces 11 is greater than the thickness of the side traces 11. Figure 2 As shown, there is a relationship of H2>H3>H1. This design can prevent the side wiring 11 from being worn and crushed due to contact collision during transportation. Figure 3 As shown, after the splicing is completed, the end of the non-elastic support platform 14 away from the first side wall 12 will be embedded in the groove 15 of the second side wall 16 of the other sub-display screen 10. When H3-D=H1, the elastic support platform 13 will have a thickness at least equal to the thickness of the side wiring 11 based on its own elastic properties after the splicing is completed. The width of the splicing gap between the two sub-display screens 10 in the splicing state is the same as the thickness of the side wiring 11, thereby achieving high-precision splicing without affecting the size of the splicing gap.

[0032] like Figure 4 As shown, when H3-D>H1, a certain gap can be maintained between the side traces 11 and the second side wall 16 after the splicing is completed, preventing the side traces 11 from being worn due to contact with the second side wall 16. Although the width of the splicing gap between the two sub-displays 10 in the spliced ​​state is greater than the thickness of the side traces 11, by properly designing the numerical relationship of H3-D>H1, the width of the splicing gap can be made infinitely close to the thickness of the side traces 11 and always greater than the thickness of the side traces 11. In this case, it will not cause excessive impact on the high-precision splicing of the spliced ​​display screen, thereby achieving maximum protection for the side traces 11.

[0033] Considering that the elastic support platform 13 has a limited elastic lifespan, after multiple expansions and contractions, the elastic support platform 13 may fail to rebound, that is, the thickness of the elastic support platform 13 may be less than the thickness of the side wiring 11, resulting in the design of the elastic support platform 13 being unable to fully protect the side wiring 11. In this case, the design of the non-elastic support platform 14 can ensure that even if the thickness of the elastic support platform 13 is less than the thickness of the side wiring 11, the side wiring 11 can still be ultimately protected when H3>H1 and H3-D≥H1.

[0034] In other words, in the technical solution of the present application, when an elastic support platform 13 is designed, it is not redundant to design a non-elastic support platform 14. Without affecting the size of the splicing gap of the spliced ​​display screen, the joint design of the elastic support platform 13 and the non-elastic support platform 14 can achieve multiple protections for the side wiring 11, thereby greatly improving the service life and display effect of the spliced ​​display screen.

[0035] In an optional embodiment of the present invention, Figures 1-4 As shown, in the embodiment of the present invention, the elastic support platform 13 and the non-elastic support platform 14 are simultaneously disposed between at least two adjacent side traces 11 .

[0036] Or, refer to Figure 5 , Figure 5 A structural schematic diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided in an embodiment of the present invention, wherein the elastic support platform 13 in the embodiment of the present invention is located between two adjacent side lines 11, and the inelastic support platform 14 is located between another two adjacent side lines 11.

[0037] Specifically, in the embodiment of the present invention, taking into account the size of the sub-display screen 10 and the number of side wirings 11 arranged on the first side wall 12, when the size of the sub-display screen 10 is large and / or the number of side wirings 11 is small, the distance between two adjacent side wirings 11 is relatively large. At this time, the elastic support platform 13 and the non-elastic support platform 14 can be simultaneously arranged between at least two adjacent side wirings 11 to ensure that the side wiring 11 at each position can be better protected; when the size of the sub-display screen 10 is small and / or the number of side wirings 11 is large, the distance between two adjacent side wirings 11 is relatively small. If the elastic support platform 13 and the non-elastic support platform 14 are simultaneously arranged between two adjacent side wirings 11, the side wiring 11 at each position can be better protected. If the elastic support platform 13 is not provided, it will be difficult to accommodate the elastic support platform 13 and the inelastic support platform 14 at the same time, which increases the design difficulty; even if the elastic support platform 13 and the inelastic support platform 14 can be accommodated at the same time, the sizes of the elastic support platform 13 and the inelastic support platform 14 will be relatively small, resulting in poor structural stability of the two; therefore, it can be designed that the elastic support platform 13 is located between a part of two adjacent side lines 11, and the inelastic support platform 14 is located between another part of two adjacent side lines 11, so as to reduce the design difficulty of the elastic support platform 13 and the inelastic support platform 14, and the sizes of the elastic support platform 13 and the inelastic support platform 14 can be appropriately increased to improve the structural stability of the elastic support platform 13 and the inelastic support platform 14.

[0038] In an optional embodiment of the present invention, reference Figure 6 , Figure 6 The elastic support platform 13 in the embodiment of the present invention includes a first portion 131, a second portion 132, and a third portion 133 sequentially arranged in the first direction X.

[0039] The orthographic projection area of ​​the first portion 131 in the first direction X is S1 , the orthographic projection area of ​​the second portion 132 in the first direction X is S2 , and the orthographic projection area of ​​the third portion 133 in the first direction X is S3 .

[0040] Among them, S1>S2, and / or, S3>S2.

[0041] Specifically, in the embodiment of the present invention, the first part 131 is close to the first side wall 12, and the third part 133 is away from the first side wall 12, that is, the first part 131 will contact the first side wall 12, and the third part 133 will contact the second side wall 16 after the splicing is completed; by increasing the positive projection area of ​​the first part 131 in the first direction X and the positive projection area of ​​the third part 133 in the first direction X, the purpose of increasing the force surface of the elastic support platform 13 is achieved, thereby achieving the effect of increasing the service life of the elastic support platform 13, realizing longer-term protection of the side wiring 11, and greatly improving the service life and display effect of the spliced ​​display screen.

[0042] In an optional embodiment of the present invention, the elastic support platform 13 is made of an organic material, and the non-elastic support platform 14 is made of an inorganic material.

[0043] Alternatively, the elastic support platform 13 is made of an electrostrictive material, and the non-elastic support platform 14 is made of an inorganic material.

[0044] Specifically, in the embodiment of the present invention, when the material of the elastic support platform 13 is an organic material, its expansion and contraction deformation is achieved by means of pressure-induced expansion based on its own elastic properties. When the material of the elastic support platform 13 is an electrostrictive material, the elastic support platform 13 can be made to undergo contraction deformation when a first voltage is applied, and can be made to undergo rebound deformation when a second voltage is applied. For example, during transportation, a second voltage is applied to the elastic support platform 13, so that the thickness of the elastic support platform 13 is greater than the thickness of the non-elastic support platform 14 and greater than the thickness of the side wiring 11, thereby preventing the side wiring 11 from being worn and crushed due to contact and collision; during the splicing process, a first voltage is applied to the elastic support platform 13 to cause contraction deformation to achieve splicing.

[0045] That is to say, in the embodiment of the present invention, the elastic support platform 13 can achieve its telescopic deformation by means of electrostriction or compression.

[0046] In an optional embodiment of the present invention, reference Figure 7 , Figure 7 This is a schematic diagram of the structure of two sub-displays in an unconnected state in another spliced ​​display screen provided by an embodiment of the present invention. In this embodiment of the present invention, a first magnetic component 17 is disposed on the second side wall 16, and a second magnetic component 18 is disposed on the side of the elastic support platform 13 away from the first side wall 12.

[0047] The first magnetic component 17 and the second magnetic component 18 are correspondingly arranged in the first direction X, and the polarity of the first magnetic component 17 facing the second magnetic component 18 is the same as the polarity of the second magnetic component 18 facing the first magnetic component 17 .

[0048] Specifically, in an embodiment of the present invention, the polarity of the first magnetic component 17 facing the second magnetic component 18 can be N pole, and the polarity of the second magnetic component 18 facing the first magnetic component 17 can also be N pole, so that the telescopic deformation of the elastic support platform 13 is achieved based on the principle that like poles repel each other.

[0049] Optionally, the orthographic projection of the first magnetic component 17 in the first direction X completely covers the orthographic projection of the second magnetic component 18 in the first direction X. Exemplarily, the area of ​​the orthographic projection of the first magnetic component 17 in the first direction X is greater than or equal to the area of ​​the orthographic projection of the second magnetic component 18 in the first direction X, thereby ensuring that the force-bearing point of the elastic support platform 13 is located in the middle area of ​​the force-bearing surface, avoiding problems such as tilting of the elastic support platform 13 during the contraction process due to deviation of the force-bearing point.

[0050] In an optional embodiment of the present invention, reference Figure 8 , Figure 8 This is a structural diagram of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention. In this embodiment of the present invention, a first magnetic component 17 is disposed on the second side wall 16, and the elastic support platform 13 is made of a magnetic material.

[0051] The first magnetic component 17 and the elastic support platform 13 are correspondingly arranged in the first direction X, and the polarity of the first magnetic component 17 facing the elastic support platform 13 is the same as the polarity of the elastic support platform 13 facing the first magnetic component 17.

[0052] Specifically, in the embodiment of the present invention, taking into account the bonding stability between the second magnetic component 18 and the elastic support platform 13, as well as the problem of the second magnetic component 18 colliding and falling during transportation, in the embodiment of the present invention, a special process can be used to form an elastic support platform 13 with certain elastic and magnetic properties, or magnetic materials can be added to some elastic materials to form the elastic support platform 13, so that the polarity of the first magnetic component 17 facing the elastic support platform 13 is the N pole, and the polarity of the elastic support platform 13 facing the first magnetic component 17 is also the N pole, and the telescopic deformation of the elastic support platform 13 is achieved based on the principle of like poles repelling.

[0053] Optionally, the orthographic projection of the first magnetic component 17 in the first direction X completely covers the orthographic projection of the elastic support platform 13 in the first direction X. Exemplarily, the area of ​​the orthographic projection of the first magnetic component 17 in the first direction X is greater than or equal to the area of ​​the orthographic projection of the elastic support platform 13 in the first direction X, thereby ensuring that the force-bearing point of the elastic support platform 13 is located in the middle area of ​​the force-bearing surface, thereby avoiding problems such as tilting of the elastic support platform 13 during the contraction process due to deviation of the force-bearing point.

[0054] That is to say, in the embodiment of the present invention, the elastic support platform 13 can achieve its telescopic deformation by means of electrostriction, pressure-striction or magnetic stretching.

[0055] Optional, reference Figure 9 , Figure 9 A schematic diagram of a structure of two sub-display screens in an unspliced ​​state in another spliced ​​display screen provided by an embodiment of the present invention, with reference to FIG. Figure 10 , Figure 10 A schematic diagram of the structure of two sub-displays in an unjoined state in another spliced ​​display screen provided by an embodiment of the present invention. In this embodiment of the present invention, the surface of the first magnetic component 17 facing the first side wall 12 and the surface of the second side wall 16 facing the first side wall 12 are coplanar.

[0056] Specifically, in an embodiment of the present invention, the first magnetic component 17 is embedded in the second side wall 16, so that the surface of the first magnetic component 17 facing the first side wall 12 and the surface of the second side wall 16 facing the first side wall 12 are in the same plane, thereby avoiding the problem of the first magnetic component 17 colliding and falling during transportation.

[0057] In an optional embodiment of the present invention, reference Figure 11 , Figure 11 This is a front view of a first side wall according to an embodiment of the present invention. The sub-display screen 10 in this embodiment also includes a light-emitting surface 19, with a first solder pad 20 disposed on one side of the light-emitting surface 19. The elastic support platform 13 also includes a first extension 134, located on one side of the light-emitting surface 19.

[0058] The thickness of the first extension portion 134 in the second direction Y is H21, and the thickness of the first pad 20 in the second direction Y is K1; wherein H21>K1; the second direction Y is perpendicular to the plane where the sub-display screen 10 is located.

[0059] and / or, reference Figure 12 , Figure 12A front view of another first side wall provided in an embodiment of the present invention, wherein the sub-display screen 10 further includes a backlight surface 21 arranged opposite to the light-emitting surface 19 in the second direction Y, and a second solder pad 22 is arranged on one side of the backlight surface 21; the elastic support platform 13 further includes a second extension portion 135, and the second extension portion 135 is located on one side of the backlight surface 21.

[0060] The thickness of the second extension portion 135 in the second direction Y is H22, and the thickness of the second pad 22 in the second direction Y is K2; wherein H22>K2.

[0061] Specifically, in the embodiment of the present invention, the elastic support platform 13 includes a first extension portion 134 and / or a second extension portion 135, which extend to the side of the light-emitting surface 19 and the side of the backlight surface 21, respectively, to protect the first solder pad 20 and / or the second solder pad 22, thereby improving the circuit connection stability of the sub-display screen 10, thereby improving the display effect of the sub-display screen 10, and ultimately improving the display performance of the spliced ​​display screen.

[0062] The above is a detailed introduction to a spliced ​​display screen provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

[0063] It should be noted that each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0064] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that the process, method, article, or apparatus comprising a series of elements inherent to the elements, or also including elements inherent to these processes, methods, articles, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0065] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spliced ​​display screen, characterized in that: The spliced ​​display screen includes: a plurality of sub-display screens, each sub-display screen including a first side wall provided with side lines; an elastic support platform and a non-elastic support platform are provided on the first side wall and are located between at least two adjacent side lines; At least some of the multiple sub-displays further include a second side wall having a groove; the first side wall of one sub-display and the second side wall of the other sub-display of the two sub-displays in the spliced ​​state are arranged opposite to each other in a first direction, and an end of the non-elastic support platform away from the first side wall is embedded in the groove; the first direction is perpendicular to the plane of the first side wall; In the first direction, the thickness of the side trace is H1, the thickness of the elastic support platform is H2, the thickness of the inelastic support platform is H3, and the depth of the groove is D; wherein H2>H3>H1, and H3-D≥H1.

2. The spliced ​​display screen according to claim 1, characterized in that: The elastic support platform is located between two adjacent side lines, and the non-elastic support platform is located between two adjacent side lines.

3. The spliced ​​display screen according to claim 1, characterized in that: The elastic support platform and the non-elastic support platform are simultaneously arranged between at least two adjacent side lines.

4. The spliced ​​display screen according to claim 1, wherein: The elastic support platform includes a first part, a second part and a third part sequentially arranged in the first direction; The orthographic projection area of ​​the first portion in the first direction is S1, the orthographic projection area of ​​the second portion in the first direction is S2, and the orthographic projection area of ​​the third portion in the first direction is S3; Among them, S1>S2, and / or, S3>S2.

5. The spliced ​​display screen according to claim 1, characterized in that: A first magnetic component is provided on the second side wall, and a second magnetic component is provided on a side of the elastic support platform away from the first side wall; The first magnetic component and the second magnetic component are correspondingly arranged in the first direction, and the polarity of the side of the first magnetic component facing the second magnetic component is the same as the polarity of the side of the second magnetic component facing the first magnetic component.

6. The spliced ​​display screen according to claim 5, characterized in that: The orthographic projection of the first magnetic component in the first direction completely covers the orthographic projection of the second magnetic component in the first direction.

7. The spliced ​​display screen according to claim 1, characterized in that: A first magnetic component is provided on the second side wall, and the material of the elastic support platform includes magnetic material; The first magnetic component and the elastic support platform are correspondingly arranged in the first direction, and the polarity of the first magnetic component facing the elastic support platform is the same as the polarity of the elastic support platform facing the first magnetic component.

8. The spliced ​​display screen according to claim 7, characterized in that: The orthographic projection of the first magnetic component in the first direction completely covers the orthographic projection of the elastic supporting platform in the first direction.

9. The spliced ​​display screen according to any one of claims 5 to 8, characterized in that: A surface of the first magnetic component facing the first side wall and a surface of the second side wall facing the first side wall are in the same plane.

10. The spliced ​​display screen according to claim 1, characterized in that: The elastic support platform is made of electrostrictive material.

11. The spliced ​​display screen according to claim 1, characterized in that: The elastic support platform is made of an organic material, and the non-elastic support platform is made of an inorganic material.

12. The spliced ​​display screen according to claim 1, wherein: The sub-display screen further includes a light emitting surface, and a first solder pad is provided on one side of the light emitting surface; the elastic support platform further includes a first extension portion, and the first extension portion is located on one side of the light emitting surface; The thickness of the first extension portion in the second direction is H21, and the thickness of the first pad in the second direction is K1; wherein H21>K1; and the second direction is perpendicular to the plane where the sub-display screen is located.

13. The spliced ​​display screen according to claim 12, wherein: The sub-display screen further includes a backlight surface arranged opposite to the light-emitting surface in the second direction, and a second solder pad is arranged on one side of the backlight surface; the elastic support platform further includes a second extension portion, and the second extension portion is located on one side of the backlight surface; The thickness of the second extension portion in the second direction is H22, and the thickness of the second pad in the second direction is K2; wherein H22>K2.

14. The spliced ​​display screen according to claim 1, wherein: The sub-display screen includes a light-emitting element; The light-emitting element is an LED light-emitting element, a Mini-LED light-emitting element or a Micro-LED light-emitting element.

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