Splicing device, electronic device and preparation method of splicing device

Abstract

The present application discloses a splicing device, an electronic device, and a method for preparing the splicing device. The splicing device includes a substrate and a control layer, an elastic layer, and a magnetic layer arranged on the substrate. The control layer includes a control circuit block for controlling the electromagnetic field in different areas. The magnetic layer includes a magnetic part, and the magnetic part is attracted by the electromagnetic field generated by the control circuit block. The elastic layer is located between the control layer and the magnetic layer, and the elastic layer includes an elastic part. The orthographic projection of the splicing display unit on the substrate and the orthographic projection of the elastic part on the substrate at least partially overlap. When the control layer generates an electromagnetic field, a magnetic force is generated between the magnetic part and the control layer. The thickness of the elastic part changes under the action of the magnetic force, so that the distance between the splicing unit and the substrate is changed. The control circuit block controls the electromagnetic field in different areas, so that the thickness of the elastic part in different areas changes, thereby achieving the purpose of adjusting the height of each splicing display unit and solving the problem of uneven height of the spliced ​​large screen.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a splicing device, an electronic device, and a method for preparing the splicing device. Background Art

[0002] With the development of display panels, display products are moving towards ultra-large size, thinness, and high definition. Traditional display screens are integrated structures, displaying content through a single display interface. Due to the current limitations of single display screens and their high cost, spliced ​​screens have emerged. Spliced ​​screens can be composed of multiple screens as needed. They have a wide range of applications and offer advantages such as clear display, easy operation, and durability.

[0003] In the related art, a spliced ​​large screen is formed by splicing multiple display screens together using a specific splicing device. During the splicing process, multiple display screens are positioned and spliced ​​on the splicing device. Due to inevitable errors in size and operation, the spliced ​​large screen will have uneven height. Summary of the Invention

[0004] The embodiments of the present application provide a splicing device, an electronic device, and a method for preparing the splicing device, which aim to solve the problem of uneven height of splicing seams when splicing large screens.

[0005] A first embodiment of the present application provides a splicing device, the splicing device comprising:

[0006] substrate;

[0007] A control layer is provided on the substrate, and the control layer includes a control circuit block;

[0008] The magnetic layer is arranged on a side of the control layer facing away from the substrate, and the magnetic layer includes a magnetic portion.

[0009] an elastic layer, disposed between the magnetic layer and the control layer, the elastic layer including an elastic portion;

[0010] The display layer is arranged on the side of the elastic layer away from the control layer, and the display layer includes a plurality of spliced ​​display units.

[0011] The orthographic projection of the elastic part on the substrate at least partially overlaps with the orthographic projection of the spliced ​​display unit on the substrate, and the control circuit block is used to control the electromagnetic fields in different areas to attract the magnetic part to change the thickness of the elastic part.

[0012] According to the implementation of the first aspect of the present application, the control circuit block and the magnetic portion have an overlapping area in their orthographic projections on the substrate, and the elastic portion and the spliced ​​display unit are both located in the overlapping area.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the elastic portion is integrally provided, and the orthographic projections of the plurality of spliced ​​display units on the substrate are located within the orthographic projections of the elastic portion on the substrate;

[0014] Alternatively, the elastic part is provided separately, and there are multiple elastic parts, and the orthographic projection of each elastic part on the substrate is located within the orthographic projection of each spliced ​​display unit on the substrate.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the thickness of the elastic portion varies in the range of 0.1 mm to 1 mm.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the magnetic portion is integrally provided, and the orthographic projections of the plurality of spliced ​​display units on the substrate are located within the orthographic projections of the magnetic portion on the substrate;

[0017] Alternatively, the magnetic part is provided separately, and there are multiple magnetic parts, and the orthographic projection of each magnetic part on the substrate is located within the orthographic projection of each spliced ​​display unit on the substrate.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the control layer includes multiple control circuit blocks, which are distributed on the surface of the substrate facing the elastic layer and are used to control the electromagnetic fields in different areas. The control circuit blocks and the splicing display units are arranged in a one-to-one correspondence, and the orthographic projection of each control circuit block on the substrate is located within the orthographic projection of each splicing display unit on the substrate.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the splicing device includes:

[0020] A first alignment mark is located on the substrate;

[0021] The spliced ​​display unit includes a second alignment mark, and an orthographic projection of the first alignment mark on the substrate coincides with an orthographic projection of the second alignment mark on the substrate.

[0022] A second embodiment of the present application provides a splicing device, the splicing device comprising:

[0023] substrate;

[0024] A control layer is provided on the substrate, and the control layer includes a control circuit block;

[0025] A display layer is provided on a side of the elastic layer facing away from the control layer, the display layer includes a plurality of spliced ​​display units, the spliced ​​display units include a substrate, an array circuit layer located on a side of the substrate facing away from the base plate, and a magnetic layer located between the substrate and the array circuit layer, the magnetic layer including a magnetic portion;

[0026] The elastic layer is provided between the display layer and the control layer, and includes an elastic portion,

[0027] The orthographic projection of the elastic part on the substrate at least partially overlaps with the orthographic projection of the spliced ​​display unit on the substrate, and the control circuit block is used to control the electromagnetic fields in different areas to attract the magnetic part to change the thickness of the elastic part.

[0028] An embodiment of the third aspect of the present application provides an electronic device, which includes the splicing device of any of the above embodiments.

[0029] An embodiment of a fourth aspect of the present application provides a method for manufacturing a display panel, including:

[0030] preparing a control layer on the substrate, the control layer including a control circuit block;

[0031] preparing an elastic material layer on the side of the control layer facing away from the substrate, and patterning the elastic material layer to obtain an elastic layer having an elastic portion;

[0032] A magnetic material layer is prepared on a side of the elastic layer facing away from the substrate, and the magnetic material layer is patterned to obtain a magnetic layer having a magnetic portion. The magnetic portion is used to move under the action of an electromagnetic field to change the thickness of the elastic portion. The control circuit block is used to control the electromagnetic field in different areas to attract the magnetic portion to change the thickness of the elastic portion.

[0033] A display layer is prepared on the side of the elastic layer facing away from the control layer. The display layer includes a plurality of spliced ​​display units. The orthographic projections of the spliced ​​display units on the substrate at least partially overlap with the orthographic projections of the elastic portion on the substrate.

[0034] According to the splicing device of the embodiment of the present application, the splicing device includes a substrate and a control layer, an elastic layer and a magnetic layer arranged on the substrate. The control layer includes a control circuit block for controlling the electromagnetic field in different areas, and the magnetic layer includes a magnetic part, and the magnetic part is attracted by the electromagnetic field generated by the control circuit block. The elastic layer is located between the control layer and the magnetic layer, and the elastic layer includes an elastic part. The orthographic projection of the splicing display unit on the substrate and the orthographic projection of the elastic part on the substrate at least partially overlap. When the control layer generates an electromagnetic field, a magnetic force is generated between the magnetic part and the control layer. The thickness of the elastic part changes under the action of the magnetic force, so that the distance between the splicing unit and the substrate is changed. The control circuit block controls the electromagnetic field in different areas, so that the thickness of the elastic part in different areas changes, thereby achieving the purpose of adjusting the height of each splicing display unit and solving the problem of uneven height of the spliced ​​large screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0036] Figure 1This is a structural diagram of a splicing device provided by an embodiment of the first aspect of the present application;

[0037] Figure 2 is a structural schematic diagram of a splicing device provided by another embodiment;

[0038] Figure 3 is a partial top view of a splicing device provided by another embodiment;

[0039] Figure 4 is a structural schematic diagram of a splicing device provided by yet another embodiment;

[0040] Figure 5 is a partial top view of a splicing device provided by another embodiment;

[0041] Figure 6 is a structural schematic diagram of a splicing device provided by yet another embodiment;

[0042] Figure 7 is a structural schematic diagram of a splicing device provided by yet another embodiment;

[0043] Figure 8 It is a structural schematic diagram of a splicing device provided by an embodiment of the second aspect of the present application;

[0044] Figure 9 yes Figure 8 A partial cross-sectional view of the mosaic display unit;

[0045] Figure 10 This is a flow chart of a method for preparing a splicing device provided by an embodiment of the fourth aspect of the present application;

[0046] Figure 11 This is a flow chart of a method for preparing a splicing device provided in another embodiment of the fourth aspect of the present application.

[0047] Description of reference numerals:

[0048] 100. Substrate; 110. First alignment mark

[0049] 200, control layer; 210, control circuit block;

[0050] 300, elastic layer; 310, elastic portion;

[0051] 400, magnetic layer; 410, magnetic portion;

[0052] 500, display layer; 510, spliced ​​display unit; 511, substrate; 512, array circuit layer; 513, second alignment mark. DETAILED DESCRIPTION

[0053] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0054] It should 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 variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0055] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0056] Flat panel display devices are being developed in a variety of sizes and applications, from small electronic devices such as mobile phones to large electronic devices such as outdoor advertising panels. Demand for large-scale display devices is particularly increasing. For example, large-scale display devices are installed in stadiums to display game-related information, and are used for various purposes, such as large billboards that display and broadcast key game scenes.

[0057] Such large-scale display devices can be manufactured in sizes comparable to the outer walls of a building. However, using traditional technology, it is difficult to manufacture ultra-large flat-panel display devices. To solve this problem, multiple display panels can be arranged and assembled in a spliced ​​manner to create a large display device, rather than using a single panel to manufacture a large display device.

[0058] In order to achieve large-size display, some related technologies use single-piece display screens that are attached piece by piece to a high-strength glass support plate, and then attached to a middle unit box to make a spliced ​​middle unit.

[0059] However, in the related art, there are processing tolerances in the positions of the middle unit box and the positioning structures on each side of the box. When splicing, the tolerances of each middle unit are different, resulting in height differences between the display screens inside the middle unit and between each middle unit due to the processing tolerances of the positioning pin positions. When assembling into a large screen, assembly tolerances will appear again. In this way, when splicing into the final large screen, there will be increasingly larger cumulative tolerances, resulting in uneven splicing heights and large cumulative tolerances of the small screens in the spliced ​​large screen, and ultimately uneven seam heights. During the splicing process, it is difficult to ensure the common height between the display screens, which is clearly visible to the naked eye, greatly affecting the visual effect, and easily causing fragments at the splicing points.

[0060] To solve the above problems, embodiments of the present application provide a splicing device, an electronic device, and a method for preparing the splicing device. The following will describe various embodiments of the splicing device, the electronic device, and the method for preparing the splicing device in conjunction with the accompanying drawings.

[0061] A first embodiment of the present application provides a splicing device, which may be a micron light-emitting diode (Micro Light-Emitting Diode, MicroLED) screen splicing device.

[0062] See also Figure 1 , Figure 1 It is a structural schematic diagram of a splicing device provided in an embodiment of the first aspect of the present application.

[0063] like Figure 1 As shown, the splicing device provided by the embodiment of the first aspect of the present application includes: a substrate 100; a control layer 200 arranged on the substrate 100, the control layer 200 including a control circuit block 210; a magnetic layer 400 arranged on the side of the control layer 200 facing away from the substrate 100, the magnetic layer 400 including a magnetic part 410; an elastic layer 300 arranged between the magnetic layer 400 and the control layer 200, the elastic layer 300 including an elastic part 310; a display layer 500 arranged on the side of the elastic layer 300 facing away from the control layer 200, the display layer 500 including a plurality of splicing display units 510, wherein the orthographic projection of the elastic part 310 on the substrate 100 at least partially overlaps with the orthographic projection of the splicing display unit 510 on the substrate 100, and the control circuit block 210 is used to control the electromagnetic field in different areas to attract the magnetic part 410 to change the thickness of the elastic part 310.

[0064] In a splicing device according to an embodiment of the present application, the splicing device includes a substrate 100 and a control layer 200, an elastic layer 300, and a magnetic layer 400 disposed on the substrate 100. The control layer 200 includes a control circuit block 210 for controlling the electromagnetic field in different regions. The magnetic layer 400 includes a magnetic portion 410, which is attracted by the electromagnetic field generated by the control circuit block 210. The elastic layer 300 is located between the control layer 200 and the magnetic layer 400 and includes an elastic portion 310. The orthographic projection of the splicing display unit 510 on the substrate 100 and the orthographic projection of the elastic portion 310 on the substrate 100 at least partially overlap. When the control layer 200 generates an electromagnetic field, a magnetic force is generated between the magnetic portion 410 and the control layer 200. Under the action of the magnetic force, the thickness of the elastic portion 310 changes, thereby changing the distance between the splicing display unit 510 and the substrate 100. The control circuit block 210 controls the electromagnetic field in different areas, so that the thickness of the elastic part 310 in different areas changes, thereby achieving the purpose of adjusting the height of each spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0065] Optionally, the control circuit block 210 controlling the electromagnetic fields in different areas includes the control circuit block 210 generating electromagnetic fields in different areas and adjusting the electromagnetic field intensities in different areas.

[0066] In some optional embodiments, there is an overlapping area between the orthographic projection of the control circuit block 210 on the substrate 100 and the orthographic projection of the magnetic part 410 on the substrate 100, and the orthographic projection of the elastic part 310 on the substrate 100 and the orthographic projection of the splicing display unit 510 on the substrate 100 are both located in the overlapping area.

[0067] In these optional embodiments, the orthographic projection of the control circuit block 210 on the substrate 100 and the orthographic projection of the magnetic portion 410 on the substrate 100 overlap, so that the magnetic portion 410, whose orthographic projection on the substrate 100 is located in the overlapping area, can be attracted by the magnetic force of the control circuit block 210. The orthographic projection of the elastic portion 310 on the substrate 100 is located in the overlapping area, and when the magnetic portion 410 is attracted, the thickness of the elastic portion 310 can be better changed. When the thickness of the elastic portion 310 changes, the distance between the spliced ​​display unit 510, whose orthographic projection on the substrate 100 is located in the overlapping area, and the substrate 100 can be better changed, thereby achieving height adjustment of the spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0068] Please also refer to Figures 1 to 5 , Figure 2 is a structural schematic diagram of a splicing device provided by another embodiment; Figure 3 is a partial top view of a splicing device provided by another embodiment; Figure 4 is a structural schematic diagram of a splicing device provided by yet another embodiment; Figure 5This is a partial top view of a splicing device provided in yet another embodiment.

[0069] In some optional embodiments, such as Figure 1 As shown, the elastic portion 310 is integrally provided, and the orthographic projections of the plurality of spliced ​​display units 510 on the substrate 100 are located within the orthographic projections of the elastic portion 310 on the substrate 100 .

[0070] In these optional embodiments, the orthographic projection of the spliced ​​display unit 510 on the substrate 100 is located within the orthographic projection of the elastic portion 310 on the substrate 100, and the control circuit block 210 controls the thickness of the elastic portion 310 in the corresponding area of ​​the spliced ​​display unit 510 to change, and the distance between the spliced ​​display unit 510 and the substrate 100 can change with the change in the thickness of the elastic portion 310.

[0071] Or, as Figure 2 and Figure 3 As shown, the elastic portion 310 is provided in a split manner, and there are multiple elastic portions 310 . The orthographic projection of each elastic portion 310 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100 .

[0072] In these optional embodiments, the elastic portion 310 is split and multiple-set, and each elastic portion 310 is independent of each other and does not affect each other. The orthographic projection of each elastic portion 310 on the substrate 100 is located within the orthographic projection of each splicing display unit 510 on the substrate 100. When the thickness of each elastic portion 310 changes, the distance between each corresponding splicing display unit 510 and the substrate 100 will also change accordingly. The split adjustment of the elastic portion 310 can more accurately adjust the distance between each part of the splicing display unit 510 and the substrate 100, thereby better solving the problem of uneven height of the spliced ​​large screen.

[0073] Optionally, the elastic part 310 is split and arranged in multiple parts, and the orthographic projection of each elastic part 310 on the substrate 100 is located within the orthographic projection of each splicing display unit 510 on the substrate 100. There is an overlapping area between the orthographic projections of the control circuit block 210 and the magnetic part 410 on the substrate 100, and the elastic part 310 and the splicing display unit 510 are both located in the overlapping area.

[0074] In these optional embodiments, the orthographic projection of each elastic portion 310 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100, and the spliced ​​display unit 510 and the elastic portion 310 are both located in the overlapping area, so that the thickness of each elastic portion 310 changes uniformly, so that the distance between each spliced ​​display unit 510 and the substrate 100 changes uniformly, thereby better adjusting the height of each spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0075] In some optional embodiments, the thickness of the elastic portion 310 ranges from 0.1 mm to 1 mm.

[0076] In these optional embodiments, the thickness of the elastic portion 310 varies within a suitable range, so that the distance between each splicing display unit 510 and the substrate 100 can vary within a controllable range, and the height of the splicing display unit 510 can be better adjusted. The thickness of the elastic layer 300 is greater than or equal to 0.1 mm, which can avoid the thickness of the elastic layer 300 being too small, which cannot meet the height adjustment requirements of each splicing display unit 510, and ensure that each splicing display unit 510 can be adjusted to the required height to solve the problem of uneven height of the spliced ​​large screen. The thickness of the elastic layer 300 is less than or equal to 1 mm, which avoids the elastic layer 300 being too thick, the distance between the magnetic layer 400 and the control layer 200 being large, the magnetic force being reduced, and not enough to change the thickness of the elastic layer 300, making it difficult to adjust the height of the splicing display unit 510, and also avoids the elastic layer 300 being too thick, which leads to the overall thickness of the splicing device being too large and the cost increased.

[0077] Please continue reading Figures 1 to 3 In some optional embodiments, the magnetic portion 410 is integrally provided, and the orthographic projections of the plurality of spliced ​​display units 510 on the substrate 100 are located within the orthographic projections of the magnetic portion 410 on the substrate 100 .

[0078] In these optional embodiments, the control circuit block 210 controls the electromagnetic fields in different areas so that the integrally arranged magnetic portion 410 is subjected to magnetic forces of different or equal magnitudes in different areas, and the thicknesses of the elastic portion 310 in different areas undergo different or equal changes, thereby achieving different or equal changes in the heights of the spliced ​​display units 510 in different areas, thereby solving the problem of uneven height of the spliced ​​large screen.

[0079] Or, as Figure 4 and Figure 5 As shown, the magnetic part 410 is provided separately, and there are multiple magnetic parts 410 . The orthographic projection of each magnetic part 410 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100 .

[0080] In these optional embodiments, the magnetic part 410 is split and arranged in multiple pieces, and each magnetic part 410 is independent of each other and does not affect each other. The orthographic projection of each magnetic part 410 on the substrate 100 is located within the orthographic projection of each splicing display unit 510 on the substrate 100. This can better change the thickness of the elastic part 310 corresponding to each magnetic part 410, and better realize the height adjustment of each splicing display unit 510.

[0081] Optionally, the elastic portion 310 is provided in a split and multiple configurations, and the orthographic projection of each elastic portion 310 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100. The magnetic portion 410 is provided in a split and multiple configurations, and the orthographic projection of each magnetic portion 410 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100. The orthographic projection of each magnetic portion 410 on the substrate 100 overlaps with the orthographic projection of each elastic portion 310 on the substrate 100.

[0082] In these optional embodiments, under the action of the control circuit block 210, each magnetic part 410 is subjected to magnetic force, and the thickness of each elastic part 310 corresponding to each magnetic part 410 will change, thereby causing the distance between the splicing display unit 510 corresponding to each magnetic part 410 and the substrate 100 to change, thereby achieving height adjustment of each splicing display unit 510.

[0083] See also Figure 6 , Figure 6 This is a structural diagram of a splicing device provided in yet another embodiment.

[0084] Optionally, the elastic part 310 and the magnetic part 410 are both separate and arranged in multiple pieces, and the orthographic projections of each magnetic part 410 on the substrate 100, the orthographic projections of each elastic part 310 on the substrate 100 and the orthographic projections of each spliced ​​display unit 510 on the substrate 100 all overlap.

[0085] In these optional embodiments, under the action of the control circuit block 210, each magnetic part 410 is subjected to magnetic force, and the thickness of each elastic part 310 changes evenly, so that the distance between each spliced ​​display unit 510 and the substrate 100 changes evenly, thereby better adjusting the height of each spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0086] Please continue reading Figure 6 In some optional embodiments, the control layer 200 includes a plurality of control circuit blocks 210, which are distributed on the surface of the substrate 100 facing the elastic layer 300 and are used to control the electromagnetic fields in different areas. The control circuit blocks 210 and the spliced ​​display units 510 are arranged in a one-to-one correspondence, and the orthographic projection of each control circuit block 210 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100.

[0087] In these optional embodiments, the orthographic projection of each control circuit block 210 on the substrate 100 is located within the orthographic projection of each spliced ​​display unit 510 on the substrate 100. Under the action of each control circuit block 210, the magnetic portion 410 at the corresponding position of each control circuit block 210 is subjected to magnetic force, and the thickness of the elastic portion 310 corresponding to each spliced ​​display unit 510 changes, so that the distance between each spliced ​​display unit 510 and the substrate 100 changes. Multiple control circuit blocks 210 can better adjust the height of each spliced ​​display unit 510 to solve the problem of uneven height of the spliced ​​large screen.

[0088] Optionally, the elastic part 310 and the magnetic part 410 are separate and arranged in multiple pieces, and the orthographic projections of each magnetic part 410 on the substrate 100, the orthographic projections of each elastic part 310 on the substrate 100, the orthographic projections of each spliced ​​display unit 510 on the substrate 100 and the orthographic projections of each control circuit block 210 on the substrate 100 all coincide.

[0089] In these optional embodiments, under the action of each control circuit block 210, each magnetic part 410 is subjected to magnetic force, and the thickness of each elastic part 310 changes evenly, so that the distance between each spliced ​​display unit 510 and the substrate 100 changes evenly, thereby better adjusting the height of each spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0090] Please continue reading Figure 6 Optionally, the control circuit block 210 , the elastic portion 310 and the magnetic portion 410 are all separate and arranged in multiple pieces, and each control circuit block 210 , the elastic portion 310 and the magnetic portion 410 are arranged in one-to-one correspondence with each splicing display unit 510 .

[0091] See also Figure 7 , Figure 7 This is a structural diagram of a splicing device provided in yet another embodiment.

[0092] In some optional embodiments, the splicing device includes a first alignment mark 110 located on the substrate 100, the splicing display unit 510 includes a second alignment mark 513, and the orthographic projection of the first alignment mark 110 on the substrate 100 coincides with the orthographic projection of the second alignment mark 513 on the substrate 100.

[0093] In these optional embodiments, the first alignment mark 110 on the substrate 100 and the second alignment mark 513 on the spliced ​​display unit 510 overlap in their orthographic projection on the substrate 100. When the spliced ​​display units 510 are spliced ​​together, each spliced ​​display unit 510 can be accurately positioned, thereby reducing the gap between the spliced ​​display units 510 and improving the visual effect.

[0094] Please also refer to Figure 8 and Figure 9 , Figure 8 It is a structural schematic diagram of a splicing device provided by an embodiment of the second aspect of the present application; Figure 9 yes Figure 8 Partial cross-sectional view of the spliced ​​display unit.

[0095] The splicing device provided by the embodiment of the second aspect of the present application includes: a substrate 100; a control layer 200 arranged on the substrate 100, the control layer 200 including a control circuit block 210; an elastic layer 300 arranged between the splicing display unit 510 and the control layer 200, the elastic layer 300 including an elastic part 310; a display layer 500 arranged on the side of the elastic layer 300 facing away from the control layer 200, the display layer 500 including a plurality of splicing display units 510, the splicing display unit 510 including: a substrate 511, an array circuit layer 512 located on the side of the substrate 511 facing away from the substrate 100, and a magnetic layer 400 located between the substrate 511 and the array circuit layer 512, the magnetic layer 400 including a magnetic part 410, wherein the orthographic projection of the elastic part 310 on the substrate 100 at least partially overlaps with the orthographic projection of the splicing display unit 510 on the substrate 100, and the control circuit block 210 is used to control the electromagnetic fields in different areas to attract the magnetic part 410 to change the thickness of the elastic part 310.

[0096] According to an embodiment of the present application, the splicing device includes a substrate 100 and a control layer 200, an elastic layer 300, and a display layer 500 disposed on the substrate 100. The control layer 200 includes a control circuit block 210 for controlling the electromagnetic field in different regions. The magnetic layer 400 includes a magnetic portion 410, which is attracted by the electromagnetic field generated by the control circuit block 210. The elastic layer 300 is located between the control layer 200 and the magnetic layer 400 and includes an elastic portion 310. The orthographic projection of the splicing display unit 510 on the substrate 100 and the orthographic projection of the elastic portion 310 on the substrate 100 at least partially overlap. When the control layer 200 generates an electromagnetic field, a magnetic force is generated between the magnetic portion 410 and the control layer 200. Under the action of the magnetic force, the thickness of the elastic portion 310 changes, thereby changing the distance between the splicing display unit 510 and the substrate 100. The control circuit block 210 controls the electromagnetic field in different areas, causing the thickness of the elastic portion 310 to vary in different areas, thereby achieving the purpose of adjusting the height of each tiled display unit 510 and solving the problem of uneven height of the tiled large screen. The magnetic layer 400 is located between the substrate 511 and the array circuit layer 512. The magnetic portion 410 is separately installed in each tiled display unit 510. The magnetic portion 410 and the tiled display unit 510 can be manufactured together.

[0097] Optionally, the magnetic part 410 is split and arranged in multiple pieces, and each magnetic part 410 is independent of each other and does not affect each other, and the orthographic projection of each magnetic part 410 on the substrate 100 is located within the orthographic projection of each splicing display unit 510 on the substrate 100. Under the action of the magnetic part 410, the splicing display unit 510 causes the elastic part 310 corresponding to each splicing display unit 510 to change in thickness, thereby realizing height adjustment of each splicing display unit 510.

[0098] The relationship between the separately provided magnetic layer 400 and other layer structures is as described above and will not be described in detail here.

[0099] In other embodiments, the magnetic layer 400 may also be located on the side of the substrate 511 away from the array circuit layer 512 , and the magnetic layer 400 may be prepared separately and disposed on the spliced ​​display unit 510 .

[0100] The third aspect of the present invention further provides an electronic device comprising the splicing device of any of the aforementioned embodiments. Since the electronic device provided by the third aspect of the present invention comprises the splicing device of any of the aforementioned embodiments, the electronic device provided by the third aspect of the present invention has the beneficial effects of the splicing device of any of the aforementioned embodiments, which will not be further elaborated here.

[0101] The electronic devices in the embodiments of the present invention include, but are not limited to, large conference screens, large teaching screens, large monitoring screens, large announcement screens, and other devices with display functions.

[0102] See also Figure 10 , Figure 10 1 is a flow chart of a method for preparing a splicing device provided in an embodiment of the fourth aspect of the present application. The splicing device can be any of the splicing devices provided in the embodiment of the first aspect above.

[0103] like Figure 10 Please also refer to Figures 1 to 9 The splicing device shown, and the method for preparing the splicing device include:

[0104] Step S01 : preparing a control layer 200 on a substrate 100 , wherein the control layer 200 includes a control circuit block 210 .

[0105] Step S02 : preparing an elastic material layer on the side of the control layer 200 facing away from the substrate 100 , and patterning the elastic material layer to obtain an elastic layer 300 having an elastic portion 310 .

[0106] Step S03: Prepare a magnetic material layer on the side of the elastic layer 300 facing away from the substrate 100, and pattern the magnetic material layer to obtain a magnetic layer 400 having a magnetic portion 410. The magnetic portion 410 is used to move under the action of an electromagnetic field to change the thickness of the elastic portion 310. The control circuit block 210 is used to control the electromagnetic field in different areas to attract the magnetic portion 410 to change the thickness of the elastic portion 310.

[0107] Step S04 : preparing a display layer 500 on the side of the elastic layer 300 facing away from the control layer 200 , wherein the display layer 500 includes a plurality of spliced ​​display units 510 , and the orthographic projections of the spliced ​​display units 510 on the substrate 100 at least partially overlap with the orthographic projections of the elastic portion 310 on the substrate 100 .

[0108] In these optional embodiments, a control layer 200 is prepared in step S01. The control layer 200 includes a control circuit block 210 for controlling the electromagnetic field in different regions. Step S02 prepares an elastic layer 300. The elastic layer 300 includes an elastic portion 310. Step S03 prepares a magnetic layer 400. The magnetic layer 400 includes a magnetic portion 410. The magnetic portion 410 is attracted by the electromagnetic field generated by the control circuit block 210. Step S04 prepares a display layer 500. The display layer 500 includes a plurality of spliced ​​display units 510 for display. The orthographic projection of the spliced ​​display units 510 on the substrate 100 and the orthographic projection of the elastic portion 310 on the substrate 100 at least partially overlap. When the control layer 200 generates an electromagnetic field, a magnetic force is generated between the magnetic portion 410 and the control layer 200. Under the action of the magnetic force, the thickness of the elastic portion 310 changes, thereby changing the distance between the spliced ​​display units 510 and the substrate 100. The control circuit block 210 controls the electromagnetic field in different areas, so that the thickness of the elastic part 310 in different areas changes, thereby achieving the purpose of adjusting the height of each spliced ​​display unit 510 and solving the problem of uneven height of the spliced ​​large screen.

[0109] Step S03 may be before step S04, or may be within step S04.

[0110] In step S03, before step S04, the magnetic layer 400 is located between the elastic layer 300 and the display layer 500. Under the action of the control circuit block 210, the magnetic portion 410 is subjected to a magnetic force, causing the thickness of the elastic layer 300 to change, thereby changing the distance between the tiled display unit 510 and the substrate 100. The control circuit block 210 controls the electromagnetic field in different areas, causing the thickness of the elastic portion 310 to change in different areas, thereby achieving the purpose of adjusting the height of each tiled display unit 510 and solving the problem of uneven height of the tiled large screen.

[0111] See also Figure 11 , Figure 11This is a flow chart of a method for preparing a splicing device provided in another embodiment of the fourth aspect of the present application.

[0112] When step S03 is within step S04, optionally, step S04 includes:

[0113] Step S041: preparing a substrate 511.

[0114] Step S042 : preparing a magnetic layer 400 on a substrate 511 , wherein the magnetic layer 400 includes a magnetic portion 410 .

[0115] Step S043 : preparing an array circuit layer 512 on the side of the magnetic layer 400 facing away from the substrate 511 .

[0116] In these optional embodiments, the magnetic layer 400 is located between the substrate 511 and the array circuit layer 512 and does not affect the display of the display layer 500. The magnetic layer 400 is located in the display layer 500, and the magnetic portion 410 is separately disposed in each spliced ​​display unit 510. The magnetic portion 410 and the spliced ​​display unit 510 are manufactured together.

[0117] Optionally, the magnetic part 410 is split and arranged in multiple pieces, and each magnetic part 410 is independent of each other and does not affect each other, and the orthographic projection of each magnetic part 410 on the substrate 100 is located within the orthographic projection of each splicing display unit 510 on the substrate 100. Under the action of the magnetic part 410, the splicing display unit 510 causes the elastic part 310 corresponding to each splicing display unit 510 to change in thickness, thereby realizing height adjustment of each splicing display unit 510.

[0118] While the embodiments described above are not exhaustive, they do not limit the invention to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A splicing device, characterized in that: include: substrate; A control layer is provided on the substrate, and the control layer includes a control circuit block; a magnetic layer, disposed on a side of the control layer facing away from the substrate, the magnetic layer comprising a magnetic portion; an elastic layer, disposed between the magnetic layer and the control layer, the elastic layer comprising an elastic portion; The display layer is arranged on the side of the elastic layer away from the control layer, and the display layer includes a plurality of spliced ​​display units. The orthographic projection of the elastic part on the substrate at least partially overlaps with the orthographic projection of the spliced ​​display unit on the substrate, and the control circuit block is used to control the electromagnetic fields in different areas to attract the magnetic part to change the thickness of the elastic part.

2. According to the splicing device according to claim 1, there is an overlapping area between the orthographic projection of the control circuit block on the substrate and the orthographic projection of the magnetic part on the substrate, and the orthographic projection of the elastic part on the substrate and the orthographic projection of the splicing display unit on the substrate are both located in the overlapping area.

3. The splicing device according to claim 1, characterized in that: The elastic portion is integrally provided, and the orthographic projections of the plurality of spliced ​​display units on the substrate are located within the orthographic projections of the elastic portion on the substrate; Alternatively, the elastic portion is provided separately, and there are multiple elastic portions, and the orthographic projection of each elastic portion on the substrate is located within the orthographic projection of each spliced ​​display unit on the substrate.

4. The splicing device according to claim 1, characterized in that: The thickness of the elastic portion varies in the range of 0.1 mm to 1 mm.

5. The splicing device according to claim 1 or 3, characterized in that: The magnetic part is provided as an integral unit, and the orthographic projections of the plurality of spliced ​​display units on the substrate are located within the orthographic projections of the magnetic part on the substrate; Alternatively, the magnetic part is provided separately, and there are multiple magnetic parts, and the orthographic projection of each magnetic part on the substrate is located within the orthographic projection of each spliced ​​display unit on the substrate.

6. The splicing device according to claim 1 or 5, characterized in that: The control layer includes multiple control circuit blocks, which are distributed on the surface of the substrate facing the elastic layer and are used to control the electromagnetic fields in different areas. The control circuit blocks and the splicing display units are arranged in a one-to-one correspondence, and the orthographic projection of each control circuit block on the substrate is located within the orthographic projection of each splicing display unit on the substrate.

7. The splicing device according to claim 1, characterized in that: include: a first alignment mark, located on the substrate; The spliced ​​display unit includes a second alignment mark, and an orthographic projection of the first alignment mark on the substrate coincides with an orthographic projection of the second alignment mark on the substrate.

8. A splicing device, characterized in that: include: substrate; A control layer is provided on the substrate, and the control layer includes a control circuit block; A display layer is provided on a side of the elastic layer away from the control layer, the display layer comprising a plurality of spliced ​​display units, the spliced ​​display units comprising a substrate, an array circuit layer located on a side of the substrate away from the base plate, and a magnetic layer located between the substrate and the array circuit layer, the magnetic layer comprising a magnetic portion; an elastic layer, disposed between the display layer and the control layer, the elastic layer including an elastic portion, The orthographic projection of the elastic part on the substrate at least partially overlaps with the orthographic projection of the spliced ​​display unit on the substrate, and the control circuit block is used to control the electromagnetic fields in different areas to attract the magnetic part to change the thickness of the elastic part.

9. An electronic device, characterized in that: The splicing device comprises the splicing device according to any one of claims 1 to 8.

10. A method for preparing a splicing device, characterized in that: preparing a control layer on a substrate, wherein the control layer includes a control circuit block; preparing an elastic material layer on a side of the control layer facing away from the substrate, and patterning the elastic material layer to obtain an elastic layer having an elastic portion; A magnetic material layer is prepared on a side of the elastic layer facing away from the substrate, and the magnetic material layer is patterned to obtain a magnetic layer having a magnetic portion, wherein the magnetic portion is configured to move under the action of an electromagnetic field to change the thickness of the elastic portion, and the control circuit block is configured to control the electromagnetic field in different regions to attract the magnetic portion to change the thickness of the elastic portion; A display layer is prepared on a side of the elastic layer facing away from the control layer. The display layer includes a plurality of spliced ​​display units. The orthographic projections of the spliced ​​display units on the substrate at least partially overlap with the orthographic projections of the elastic portion on the substrate.

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