Display panels, video walls, and electronic equipment

Abstract

This application provides a display panel, a splicing display screen, and an electronic device. The display panel includes: a driving backplate, the driving backplate including a first surface, a second surface, and a side surface, the first surface and the second surface being disposed opposite each other in the thickness direction of the driving backplate, and the side surface being located between the first surface and the second surface; and a splicing protective layer covering at least a portion of the side surface, including at least one groove and / or protrusion extending in a direction parallel to the first surface. By providing a splicing protective layer with grooves or protrusions on the side surface of the display panel, a buffering effect is provided during the splicing of the display panels, and the grooves and protrusions of the splicing protective layer interlock, which can reduce light leakage at the splicing seams between display panels.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel, a video wall display, and an electronic device. Background Technology

[0002] With the development of display device manufacturing technology, Mini LEDs and Micro-LEDs are widely used due to their superior advantages in brightness, resolution, contrast ratio, energy consumption, lifespan, response speed, and thermal stability. However, due to limitations in mass transfer technology, Mini LED or Micro-LED display panels cannot currently be manufactured into large-scale monolithic screens. Therefore, multiple smaller display panels need to be spliced ​​together to form a larger screen. However, during the splicing process, adjacent display panels may collide or rub against each other, leading to screen damage and affecting product yield. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of this application is to provide a display panel, the display panel comprising:

[0004] A drive backplate, the drive backplate including a first surface, a second surface and a side surface, the first surface and the second surface being disposed opposite to each other in the thickness direction of the drive backplate, and the side surface being located between the first surface and the second surface;

[0005] The splicing protective layer covering at least part of the side surface includes at least one groove and / or protrusion extending in a direction parallel to the first surface.

[0006] In one possible implementation, the splicing protective layer includes a plurality of grooves and protrusions arranged along the thickness direction of the drive backplate.

[0007] In one possible implementation, the width of the protrusion is smaller than the width of the groove in the thickness direction of the drive backplate.

[0008] In one possible implementation, the splicing protective layer includes multiple rows of the protrusions extending in a direction parallel to the first surface, with the grooves formed between adjacent rows of the protrusions;

[0009] Preferably, each row of the protrusions includes at least one break notch, and the break notches of adjacent rows of the protrusions are staggered in their orthographic projections onto the plane containing the first surface.

[0010] In one possible implementation, the material of the splicing protective layer includes an elastic material;

[0011] Preferably, the color of the splicing protective layer includes black;

[0012] Preferably, the material of the splicing protective layer includes hydrogel.

[0013] In one possible implementation, the first surface and the second surface are polygonal in shape, the drive backplate includes a plurality of said side surfaces, and the splicing protective layer covers at least a portion of each of said side surfaces.

[0014] In one possible implementation, the drive backplane includes a side wiring structure extending from the first surface through the side surface to the second surface; the splicing protective layer covers at least a portion of the side wiring structure located on the side surface.

[0015] Preferably, the side trace structure includes conductive traces extending from the first surface through the side to the second surface and at least a portion of an encapsulation layer covering the conductive traces.

[0016] Another objective of this application is to provide a splicing display screen, the splicing display screen including a support structure and at least two display panels provided in this application disposed on the support structure; the splicing protective layers of adjacent display panels are disposed opposite to each other, and the grooves and protrusions on the splicing protective layers of adjacent display panels are interlocked.

[0017] In one possible implementation, in the two interlocking protective layers, the width of the groove is greater than the width of the protrusion in the thickness direction of the display panel.

[0018] Another object of this application is to provide an electronic device, which includes the splicing display screen provided in this application.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] This application provides a display panel, a splicing display screen, and an electronic device. By providing a splicing protective layer with grooves or protrusions on the side of the display panel, a buffering effect is provided when the display panels are spliced. Furthermore, the grooves and protrusions of the splicing protective layers of two adjacent display panels can interlock with each other, thereby reducing light leakage at the splicing seams between the display panels. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 One of the schematic diagrams of a display panel provided in an embodiment of this application;

[0023] Figure 2 A second schematic diagram of a display panel provided in an embodiment of this application;

[0024] Figure 3 This is one of the structural schematic diagrams of the splicing protective layer provided in the embodiments of this application;

[0025] Figure 4 This is one of the schematic diagrams showing the fit of the splicing protective layer provided in the embodiments of this application;

[0026] Figure 5 This is the second schematic diagram of the splicing protective layer provided in the embodiments of this application;

[0027] Figure 6 This is the second schematic diagram of the structure of the splicing protective layer provided in the embodiments of this application;

[0028] Figure 7 A third schematic diagram of a display panel provided in an embodiment of this application;

[0029] Figure 8 This is the third schematic diagram illustrating the fit of the splicing protective layer provided in the embodiments of this application.

[0030] Icons: 100 - Drive backplane; 101 - First surface; 102 - Second surface; 103 - Side; 400 - Splicing protective layer; 410 - Protrusion; 420 - Groove; 200 - Side trace structure; 210 - Conductive trace; 220 - Encapsulation layer; D1 - First direction; D2 - Second direction; D3 - Third direction. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0036] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 The present embodiment provides a display panel, which includes a driving backplate 100 and a splicing protective layer 400.

[0037] The drive backplate 100 includes a first surface 101, a second surface 102, and a side surface 103. The first surface 101 and the second surface 102 are disposed opposite to each other in the thickness direction of the drive backplate 100, and the side surface 103 is located between the first surface 101 and the second surface 102.

[0038] For example, in one possible implementation, both the first surface 101 and the second surface 102 can be rectangular, and both the first surface 101 and the second surface 102 are parallel to... Figure 1 The plane formed by the first direction D1 and the second direction D2 is shown. The first direction D1 and the second direction D2 are perpendicular. The thickness direction of the drive backplate 100 is... Figure 1 The third direction D3 is shown, which is perpendicular to both the first direction D1 and the second direction D2. The side surface 103 extends from the edge of the first surface 101 along the third direction D3 to the edge of the second surface 102.

[0039] In this embodiment, the driving backplane 100 may include a thin film transistor (TFT) driving backplane 100, and the driving backplane 100 may include a plurality of driving units arranged in an array, the driving units being used to drive the light-emitting device to emit light.

[0040] Preferably, in this embodiment, the display panel may further include at least one light-emitting device disposed on one side of the driving backplate 100, the light-emitting device being electrically connected to the driving unit via bonding electrodes or pads on the driving backplate 100. For example, at least one of the light-emitting devices may be placed or temporarily attached to one side of the driving backplate 100 by mass transfer, and then electrically connected to the driving backplate by pressure bonding.

[0041] The splicing protective layer 400 covers at least a portion of the side surface 103 of the drive back panel 100, wherein the side surface 103 may be the side that needs to be spliced ​​and contacted with other display panels. The splicing protective layer 400 serves to buffer against bumps or knocks during the splicing process of the display panels.

[0042] Please refer to Figure 3 The splicing protective layer 400 includes at least one groove 420 and / or protrusion 410 extending in a direction parallel to the first surface 101. That is, the groove 420 and / or the protrusion 410 form a strip-like structure, and the extending direction of the strip-like structure is parallel to the first surface 101.

[0043] For example, please refer to again Figure 2 If the splicing protective layer 400 covers the side 103 of the drive back plate 100 facing the second direction D2, then the groove 420 and / or protrusion 410 on the splicing protective layer 400 can extend along the first direction D1.

[0044] For example, in other implementations not shown in this embodiment, if the splicing protective layer 400 covers the side 103 of the drive back plate 100 facing the first direction D1, then the groove 420 and / or protrusion 410 on the splicing protective layer 400 can extend along the second direction D2.

[0045] In one possible implementation, the splicing protective layer 400 may have both the protrusion 410 and the groove 420, wherein a groove 420 may be formed between two adjacent protrusions 410, or a protrusion 410 may be formed between two adjacent grooves 420.

[0046] Based on the above design, please refer to Figure 4When two display panels provided in this embodiment are spliced ​​together, the splicing protective layers 400 of the two display panels can be arranged opposite to each other. Each of the splicing protective layers 400 has a groove 420 and / or a protrusion 410. The grooves 420 and protrusions 410 on the two splicing protective layers 400 interlock to form an interlocking structure. Thus, on the one hand, the splicing protective layer 400 can buffer against bumps or knocks during the splicing process; on the other hand, the splicing protective layer 400 can block light from the third-direction D3 from passing through the splicing seam between the two adjacent display panels, thereby reducing light leakage from the splicing seam. Furthermore, the interlocking structure of the two splicing protective layers 400 can also improve the splicing stability of adjacent display panels and improve the splicing quality.

[0047] In one possible implementation, the splicing protective layer 400 includes a plurality of grooves 420 and protrusions 410 arranged along the thickness direction of the drive back plate 100.

[0048] For example, please refer to again Figure 1 The splicing protective layer 400 includes three or more protrusions 410 and / or grooves 420. The protrusions 410 and the grooves 420 extend in a direction parallel to the first surface 101 and / or the second surface 102, and the plurality of grooves 420 and protrusions 410 are arranged along the third direction D3.

[0049] In one possible implementation, the width of the protrusion 410 is smaller than the width of the groove 420 in the thickness direction of the drive backplate 100. For example, please refer again. Figure 3 On the third direction D3, the width H1 of the protrusion 410 is smaller than the width H2 of the groove 420.

[0050] Based on the above design, please refer to Figure 4 In this embodiment, when two display panels are spliced ​​together, the protrusions 410 on the splicing protective layer 400 of the two adjacent display panels are offset in the third direction D3, and the grooves 420 are offset in the third direction D3. The protrusion 410 of one splicing protective layer 400 is embedded in the groove 420 of the other splicing protective layer 400. Please refer to... Figure 5For each display panel, the width of the protrusion 410 on the third direction D3 is smaller than the width of the groove 420 on the third direction D3. After the protrusion 410 is embedded in the groove 420, there is still a certain gap between the protrusions 410 of the two splicing protective layers 400 on the third direction D3. In this way, when the splicing protective layer 400 deforms due to temperature changes, the protrusion 410 can provide a certain deformation buffer space, avoiding excessive deformation caused by mutual compression between the splicing protective layers 400.

[0051] In one possible implementation, please refer to Figure 6 The splicing protective layer 400 includes multiple rows of protrusions 410 extending in a direction parallel to the first surface 101, with grooves 420 formed between adjacent rows of protrusions 410. Each row of protrusions 410 includes at least one break notch (e.g., Figure 6 (As shown by the dashed circle in the middle), the orthographic projections of the break gaps of the two adjacent rows of the protrusions 410 on the plane where the first surface 101 is located are staggered.

[0052] For example, in Figure 1 Technically, in the illustrated scheme, in the splicing protective layer 400 covering the side 103 of the display panel facing the second direction D2, multiple rows of protrusions 410 extend along the first direction D1. Each row of protrusions 410 includes one or more break notches. Thus, when the protrusions 410 deform in the first direction D1 due to temperature changes, the break notches can provide a certain deformation buffer space.

[0053] The notches of the two adjacent rows of protrusions 410 are staggered on the third direction D3. This prevents light from passing through the adjacent notches from the third direction D3, thereby reducing light leakage at the seams between display panels.

[0054] In one possible implementation, the splicing protective layer 400 is made of an elastic material. This improves the cushioning and protective effect of the splicing protective layer 400.

[0055] Optionally, the splicing protective layer 400 may be black. This reduces the reflectivity of the splicing protective layer 400, ensuring the visual effect of the spliced ​​display panels.

[0056] Optionally, the splicing protective layer 400 may be made of hydrogel. Thus, the splicing protective layer 400 can be easily formed on the side surface 103 of the drive backplate 100 using a photomask or screen printing method.

[0057] In another possible implementation, the splicing protective layer 400 can also be formed of an etchable material, and the protrusion 410 or the groove 420 can be formed by etching with a mask.

[0058] In one possible implementation, the first surface 101 and the second surface 102 are polygonal in shape, the drive backplate 100 includes a plurality of the side surfaces 103, and the splicing protective layer 400 covers at least a portion of each of the side surfaces 103.

[0059] For example, please refer to Figure 7 Both the first surface 101 and the second surface 102 can be rectangular. The driving backplate 100 includes four side surfaces 103, and each of the four side surfaces 103 can be covered by the splicing protective layer 400. Thus, when the display panel is spliced ​​with other displays around it, the splicing protective layer 400 can provide buffer protection.

[0060] Preferably, the splicing protective layer 400 can completely cover each of the sides 103. In this way, the display panel can be provided with maximum impact protection, and light leakage at the splicing seams can be more comprehensively avoided.

[0061] It should be noted that the rectangular shape of the first surface 101 and the second surface 102 described above is only one implementation method in this embodiment. In other implementation methods of this embodiment, the shape of the first surface 101 and the second surface 102 can also be other shapes that can achieve large-area splicing, such as equilateral triangles, regular hexagons, etc., which are not specifically limited in this embodiment.

[0062] In one possible implementation, please refer to Figure 8 The driving backplane 100 includes a side trace structure 200 extending from the first surface 101 through the side surface 103 to the second surface 102. The side trace structure 200 is used to connect a circuit structure located on the first surface 101 of the driving backplane 100 and a circuit structure located on the second surface 102 of the driving backplane 100. For example, the circuit structure on one side of the driving backplane 100 where the light-emitting device is located can be connected to a driving chip located on the back side of the driving backplane 100.

[0063] In this case, the splicing protective layer 400 covers at least a portion of the side wiring structure 200 located on the side surface 103. Thus, the splicing protective layer 400 can protect the side wiring structure 200 from bumps or friction during splicing, preventing breakage of the side wiring structure 200.

[0064] Preferably, the splicing protective layer 400 can completely cover the portion of the side wiring structure 200 located on the side 103. In this way, the splicing protective layer 400 can more comprehensively protect the side wiring structure 200 from bumps or friction.

[0065] Preferably, the side trace structure 200 includes a conductive trace 210 extending from the first surface 101 through the side surface 103 to the second surface 102, and an encapsulation layer 220 covering at least a portion of the conductive trace 210. Preferably, the encapsulation layer 220 can completely cover the conductive trace 210. The encapsulation layer 220 is used to prevent the conductive trace 210 from being corroded by water and oxygen, and to prevent the conductive trace 210 from short-circuiting with the circuit structure of other display panels. The conductive trace 210 may include metal traces, and the encapsulation layer 220 may include black organic ink or adhesive.

[0066] This embodiment also provides a splicing display screen, which includes a support structure and at least two display panels provided in this embodiment disposed on the support structure. The splicing protective layers 400 of adjacent display panels are disposed opposite to each other, and the grooves 420 and protrusions 410 on the splicing protective layers 400 of adjacent display panels are interlocked.

[0067] In one possible implementation, in the two interlocking splicing protective layers 400, the width of the groove 420 is greater than the width of the protrusion 410 in the thickness direction of the display panel. Thus, when a protrusion 410 of one splicing protective layer 400 is embedded in the groove 420 of the other splicing protective layer 400, there can be a certain gap between the staggered protrusions 410 of the two splicing protective layers 400.

[0068] This embodiment also provides an electronic device, which includes the splicing display screen provided in this embodiment. The electronic device may include a monitor, a splicing display screen, a mobile phone, a tablet computer, a laptop computer, a television, or other devices with display functions.

[0069] In summary, this application provides a display panel, a splicing display screen, and an electronic device. By providing a splicing protective layer with grooves or protrusions on the side of the display panel, a buffering effect is provided when the display panels are spliced. Furthermore, the grooves and protrusions of the splicing protective layers of two adjacent display panels interlock with each other, which can reduce light leakage between the splicing seams of the display panels.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: A drive backplate, the drive backplate including a first surface, a second surface and a side surface, the first surface and the second surface being disposed opposite to each other in the thickness direction of the drive backplate, and the side surface being located between the first surface and the second surface; A splicing protective layer covering at least a portion of the said side, the splicing protective layer including at least one groove and / or protrusion extending in a direction parallel to the first surface; The splicing protective layer includes a plurality of grooves and protrusions arranged along the thickness direction of the drive back plate; The splicing protective layer includes multiple rows of protrusions extending in a direction parallel to the first surface, with the grooves formed between adjacent rows of protrusions; Each row of protrusions includes at least one break notch, and the break notches of adjacent rows of protrusions are staggered in their orthographic projections onto the plane containing the first surface.

2. The display panel according to claim 1, characterized in that, In the thickness direction of the drive back plate, the width of the protrusion is smaller than the width of the groove.

3. The display panel according to claim 1, characterized in that, The material of the splicing protective layer includes elastic materials.

4. The display panel according to claim 3, characterized in that, The color of the splicing protective layer includes black.

5. The display panel according to claim 4, characterized in that, The material of the splicing protective layer includes hydrogel.

6. The display panel according to claim 1, characterized in that, The first surface and the second surface are polygonal in shape, the drive backplate includes a plurality of said sides, and the splicing protective layer covers at least a portion of each said side.

7. The display panel according to claim 1, characterized in that, The drive backplate includes a side wiring structure extending from the first surface through the side surface to the second surface; the splicing protective layer covers at least a portion of the side wiring structure located on the side surface.

8. The display panel according to claim 7, characterized in that, The side trace structure includes conductive traces extending from the first surface through the side to the second surface and an encapsulation layer covering at least a portion of the conductive traces.

9. A splicing display screen, characterized in that, The splicing display screen includes a support structure and at least two display panels as described in any one of claims 1-8 disposed on the support structure; the splicing protective layers of adjacent display panels are disposed opposite to each other, and the grooves and protrusions on the splicing protective layers of adjacent display panels are interlocked.

10. The splicing display screen according to claim 9, characterized in that, In the two interlocking protective layers, the width of the groove is greater than the width of the protrusion in the thickness direction of the display panel.

11. An electronic device, characterized in that, The electronic device includes the splicing display screen as described in claim 10.

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