Display panels and electronic devices

Abstract

The present application discloses a display panel and electronic device. The display panel includes a bending region and two non-bending regions located at opposite ends of the bending region. The display panel includes a support module, which includes a first support layer and a second support layer. The second support layer includes a first sub-support layer and a second sub-support layer, which are spaced apart, and the first sub-support layer and the second sub-support layer are respectively arranged corresponding to the two non-bending regions. The first support layer covers the bending region and the two non-bending regions. One of the first support layer and the second support layer has an opening in the portion corresponding to the non-bending region, and the other is made of a composite material of carbon fiber and resin. Through the above arrangement, while achieving the bending performance of the support module, the support of the support module corresponding to the bending region is improved, effectively improving the creases left on the display panel after being bent for a long time.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and an electronic device. Background Art

[0002] With the development of display technology, foldable screens have emerged. Foldable screens include multiple stacked film layers. To prevent the film layers from collapsing or being damaged, support members are provided to support the film layers.

[0003] Currently, the folding performance of foldable screens is achieved by patterning the portion of the support member corresponding to the bending zone. However, this method of achieving bending performance reduces the support strength of the support member corresponding to the bending zone, which can easily cause creases after long-term bending. Summary of the Invention

[0004] The present application provides a display panel and an electronic device to improve the crease of a support member corresponding to a bending area.

[0005] In order to solve the above technical problems, the first technical solution provided in the present application is: providing a display panel, comprising a bending area and two non-bending areas located at opposite ends of the bending area; the display panel includes a supporting module, and the supporting module includes a first supporting layer and a second supporting layer; the second supporting layer includes a first sub-support layer and a second sub-support layer arranged at intervals, and the first sub-support layer and the second sub-support layer are arranged corresponding to the two non-bending areas respectively; the first supporting layer covers the bending area and the two non-bending areas; a part of the first supporting layer and the second supporting layer corresponding to the non-bending area has an opening, and the material of the other one of the first supporting layer and the second supporting layer is a composite material of carbon fiber and resin.

[0006] In one embodiment, a first elastic filling layer is provided at the gap between the first sub-supporting layer and the second sub-supporting layer; or a first elastic filling layer is provided on a surface of the second supporting layer away from the first supporting layer, and the first elastic filling layer extends to the gap between the first sub-supporting layer and the second sub-supporting layer;

[0007] Preferably, the outer surface of the supporting module is a plane;

[0008] More preferably, the material of the first elastic filling layer includes thermoplastic polyurethane elastomer rubber.

[0009] In one embodiment, the support module also includes a third support layer, which is located on the surface of the first support layer away from the second support layer; the third support layer includes a third sub-support layer and a fourth sub-support layer arranged at intervals, and the third sub-support layer and the fourth sub-support layer are arranged corresponding to the two non-bending areas respectively; the material of the third support layer is a composite material of carbon fiber and resin; the part of the first support layer corresponding to the non-bending area has an opening, and the material of the second support layer is a composite material of carbon fiber and resin.

[0010] In one embodiment, a first elastic filling layer is provided at the interval between the first sub-support layer and the second sub-support layer; a second elastic filling layer is provided at the interval between the third sub-support layer and the fourth sub-support layer;

[0011] Alternatively, a first elastic filling layer is provided on a surface of the second supporting layer away from the first supporting layer, and the first elastic filling layer extends to the gap between the first sub-support layer and the second sub-support layer; a second elastic filling layer is provided on a surface of the third supporting layer away from the first supporting layer, and the second elastic filling layer extends to the gap between the third sub-support layer and the fourth sub-support layer;

[0012] Preferably, the outer surface of the supporting module is a plane;

[0013] More preferably, the material of the first elastic filling layer and / or the second elastic filling layer includes thermoplastic polyurethane elastomer rubber.

[0014] In one embodiment, the material of the first supporting layer is a composite material of carbon fiber and resin, or the material of the first supporting layer includes stainless steel and titanium alloy.

[0015] In one embodiment, the thickness of the first supporting layer is 25 μm-35 μm; and / or the thickness of the second supporting layer is 25 μm-35 μm; and / or the thickness of the third supporting layer is 25 μm-35 μm;

[0016] Preferably, the thickness of the first supporting layer, the thickness of the second supporting layer, and the thickness of the third supporting layer are the same.

[0017] In one embodiment, the thickness of the first elastic filling layer located on the surface of the first sub-supporting layer and the second sub-supporting layer is 8 μm-12 μm; and / or the thickness of the second elastic filling layer located on the surface of the third sub-supporting layer and the fourth sub-supporting layer is 8 μm-12 μm;

[0018] Preferably, the thickness of the first elastic filling layer located on the surface of the first sub-supporting layer and the second sub-supporting layer is the same as the thickness of the second elastic filling layer located on the surface of the third sub-supporting layer and the fourth sub-supporting layer.

[0019] In one embodiment, a portion of the first supporting layer corresponding to the non-bending area has a plurality of openings, the plurality of openings are arranged in an array, and the openings are through holes or blind holes.

[0020] In one embodiment, a display module is further included, and the support module is disposed on one side of the display module to support the display module.

[0021] In order to solve the above technical problems, the second technical solution provided in this application is: to provide an electronic device, comprising any of the display panels described above.

[0022] Beneficial Effects of the Present Application: Different from the prior art, the present application discloses a display panel and electronic device. The display panel includes a bending region and two non-bending regions located at opposite ends of the bending region. The display panel includes a support module; the support module includes a first support layer and a second support layer. The first support layer covers the bending region and the two non-bending regions. The second support layer includes a first sub-support layer and a second sub-support layer spaced apart, with the first sub-support layer and the second sub-support layer respectively positioned corresponding to the two non-bending regions. By positioning the second support layer as described above, the thickness of the support module corresponding to the bending region is reduced, enabling the support module to have bending properties corresponding to the bending region and providing good support, effectively reducing creases after prolonged bending of the display panel. One of the first and second support layers has an opening in the portion corresponding to the non-bending region, and the other of the first and second support layers is made of a composite material of carbon fiber and resin. During the lamination process, the resin flows into the opening, resulting in a strong interfacial bonding at the lamination interface, preventing separation of the first and second support layers during prolonged bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 is a schematic structural diagram of a first embodiment of a display panel provided by the present application;

[0025] Figure 2 yes Figure 1 A schematic top view of the structure of the first supporting layer shown in FIG;

[0026] Figure 3 yes Figure 1 A structural schematic diagram of another embodiment of the first elastic filling layer is shown in FIG;

[0027] Figure 4 is a schematic structural diagram of a second embodiment of a display panel provided by the present application;

[0028] Figure 5 yes Figure 4 Schematic diagram of the structure of another embodiment of the first elastic filling layer and the second elastic filling layer is shown in FIG. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0031] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" in the embodiments of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0032] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0034] See also Figure 1-Figure 3 , Figure 1 is a schematic structural diagram of a first embodiment of a display panel provided in this application, Figure 2 yes Figure 1 A schematic diagram of the top view of the first supporting layer is shown in FIG. Figure 3 yes Figure 1 A structural schematic diagram of another embodiment of the first elastic filling layer is shown in FIG.

[0035] An embodiment of the present application provides a foldable display panel. The display panel includes a bending region A and two non-bending regions B located at opposite ends of the bending region A. The display panel includes a support module 11 and a display module 12. Display module 12 is used to display images. The specific structure of display module 12 is the same as that of the prior art and will not be described in detail. Support module 11 is provided on one side of display module 12 to support the display module and prevent the film layer in display module 12 from collapsing or being damaged during the bending process.

[0036] The support module 11 includes a first support layer 111 and a second support layer 112. The first support layer 111 covers the bending area A and two non-bending areas B. The second support layer 112 includes a first sub-support layer 1121 and a second sub-support layer 1122, which are spaced apart. The first sub-support layer 1121 and the second sub-support layer 1122 are respectively arranged corresponding to the two non-bending areas B. One of the first support layer 111 and the second support layer 112 has an opening 1111 in a portion corresponding to the non-bending area B, and the other of the first support layer 111 and the second support layer 112 is made of a composite material of carbon fiber and resin. It should be noted that the first support layer 111 can be arranged on the side of the second support layer 112 close to the display module 12, or the first support layer 111 can be arranged on the side of the second support layer 112 away from the display module 12, and the specific arrangement is made according to needs.

[0037] Compared to the prior art, the portion of the support member corresponding to the bending zone is patterned to impart bending properties to the support member. Due to the patterned structure, the support properties of the support member corresponding to the bending zone differ significantly from those of the support member corresponding to the non-bending zone, making it more susceptible to creases. In this application, the second support layer 112 is provided only in the non-bending zone B, and no second support layer 112 is provided in the bending zone A. This thins the portion of the support module 11 corresponding to the bending zone A, thereby achieving bending properties, reducing process difficulty, improving the support properties of the support module 11 corresponding to the bending zone A, and effectively improving creases in the bending zone A.

[0038] By making one of the first supporting layer 111 and the second supporting layer 112 corresponding to the non-bending area B have an opening 1111, the material of the other of the first supporting layer 111 and the second supporting layer 112 is a composite material of carbon fiber and resin, so that during the pressing process of the first supporting layer 111 and the second supporting layer 112, the resin flows into the opening, and the pressing interface has a strong interface bonding force, thereby avoiding separation of the first supporting layer 111 and the second supporting layer 112 during long-term bending, thereby improving the yield of the support module 11.

[0039] In one embodiment, the resin is an epoxy resin.

[0040] In one embodiment, the portion of the first supporting layer 111 corresponding to the non-bending region B has an opening 1111 (the first supporting layer 111 has an opening 1111 corresponding to one non-bending region B or the first supporting layer 111 has an opening 1111 corresponding to both bending regions B). When the material of the second supporting layer 112 is a composite material of carbon fiber and resin, during the lamination process of the first supporting layer 111 and the second supporting layer 112, the resin in the material of the second supporting layer 112 flows into the opening 1111 on the first supporting layer 111, resulting in a strong interfacial bonding force at the lamination interface. Alternatively, the material of the first supporting layer 111 can be a composite material of carbon fiber and resin, or the material of the first supporting layer 111 includes stainless steel and titanium alloy.

[0041] In one embodiment, the portion of the second supporting layer 112 corresponding to the non-bending region B has an opening 1111 (i.e., the first sub-support layer 1121 and / or the second sub-support layer 1122 has an opening 1111). When the material of the first supporting layer 111 is a composite material of carbon fiber and resin, during the lamination process of the first supporting layer 111 and the second supporting layer 112, the resin in the material of the first supporting layer 111 flows into the opening 1111 on the second supporting layer 112, resulting in a strong interfacial bonding force at the lamination interface. Alternatively, the material of the second supporting layer 112 can be a composite material of carbon fiber and resin.

[0042] Carbon fiber has advantages such as light weight, high modulus, high strength, and excellent thermal conductivity, and thus has outstanding advantages as a material for the support module 11. By setting the material of the first support layer 111 and / or the second support layer 112 to a composite material of carbon fiber and resin, the performance of the support module 11 is improved.

[0043] The supporting module 11 will be described in detail below by taking an example in which the portion of the first supporting layer 111 corresponding to the non-bending area B has an opening 1111 and the material of the second supporting layer 112 is a composite material of carbon fiber and resin.

[0044] In one embodiment, the opening 1111 is a blind hole, which is provided on the surface of the first supporting layer 111 close to the second supporting layer 112. During the lamination process of the first supporting layer 111 and the second supporting layer 112, the resin can flow into the opening 1111 and can flow to the surface of the first supporting layer 111 away from the second supporting layer 112. It is understood that the opening 1111 can also be a through hole.

[0045] In one embodiment, the first support layer 111 has a plurality of openings 1111 arranged in an array for ease of processing. For example, the cross-sectional shape of the opening 1111 is rectangular, and the plurality of openings 1111 are arranged in a rectangular array (e.g., Figure 2 ), wherein the cross section refers to a cross section parallel to the first support layer 111. It should be noted that the cross-sectional shape of the opening 1111 can be designed as needed and is not limited to a rectangle. The multiple openings 1111 can also be arranged in an irregular manner, specifically designed according to needs to improve the interfacial bonding strength.

[0046] In one embodiment, the thickness of the first supporting layer 111 is 25 μm-35 μm.

[0047] In one embodiment, the thickness of the second supporting layer 112 is 25 μm-35 μm.

[0048] In one embodiment, the thickness of the first support layer 111 is the same as the thickness of the second support layer. For example, the thickness of the first support layer 111 is 30 μm, and the thickness of the second support layer 112 is 30 μm (e.g., Figure 1 and Figure 3 shown).

[0049] In one embodiment, if Figure 1As shown, a first elastic filling layer 113 is provided in the gap between the first sub-support layer 1121 and the second sub-support layer 1122. The thickness of the first sub-support layer 1121, the thickness of the second sub-support layer 1122, and the thickness of the first elastic filling layer 113 are the same, that is, the surface of the first elastic filling layer 113 away from the first supporting layer 111 is flush with the surface of the first sub-support layer 1121 away from the first supporting layer 111, and the surface of the second sub-support layer 1122 away from the first supporting layer 111, so that the outer surface of the support module 11 is flat.

[0050] In one embodiment, if Figure 3 As shown, a first elastic filling layer 113 is provided on the surface of the second supporting layer 112 away from the first supporting layer 111, and the first elastic filling layer 113 extends to the gap between the first sub-support layer 1121 and the second sub-support layer 1122. The surface of the first elastic filling layer 113 away from the first supporting layer 111 is planar, making the outer surface of the support module 11 also planar. Optionally, the thickness of the first elastic filling layer 113 located on the surfaces of the first sub-support layer 1121 and the second sub-support layer 1122 is 8μm-12μm; illustratively, the thickness of the first elastic filling layer 113 located on the surfaces of the first sub-support layer 1121 and the second sub-support layer 1122 is 10μm.

[0051] Optionally, the material modulus of the first elastic filling layer 113 is relatively low. For example, the material of the first elastic filling layer 113 includes thermoplastic polyurethane (TPU). Because the first elastic filling layer 113 has excellent cushioning properties, after the first elastic filling layer 113 is provided on the surface of the second supporting layer 112 away from the first supporting layer 111, the under-screen cushioning material of the display module 12 can be eliminated.

[0052] See also Figure 4 and Figure 5 , Figure 4 is a schematic structural diagram of a second embodiment of a display panel provided by this application, Figure 5 yes Figure 4 Schematic diagram of the structure of another embodiment of the first elastic filling layer and the second elastic filling layer is shown in FIG.

[0053] The structure of the second embodiment of the display panel 1 is substantially the same as that of the first embodiment of the display panel, except that the support module 11 further includes a third support layer 114, which is located on a surface of the first support layer 111 away from the second support layer 112. The structures of the second embodiment of the display panel that are identical to those of the first embodiment of the display panel will not be further described, and the above description will be further elaborated.

[0054] In the second embodiment of the display panel, the third supporting layer 114 includes a third sub-support layer 1141 and a fourth sub-support layer 1142, which are spaced apart. The third sub-support layer 1141 and the fourth sub-support layer 1142 are respectively provided corresponding to the two non-bending regions B. This application further improves the support performance of the support module 11 by providing the third supporting layer 114 on a side of the first supporting layer 111 away from the second supporting layer 112. The third supporting layer 114 is provided only corresponding to the non-bending region B, and no third supporting layer 114 is provided in the bending region A. This reduces the thickness of the support module 11 corresponding to the bending region A, thereby achieving bending performance, reducing process difficulty, improving the support of the support module 11 corresponding to the bending region A, and effectively improving the crease in the bending region A.

[0055] In one embodiment, the second support layer 112 has an opening 1111 corresponding to the non-bending region B (i.e., the first sub-support layer 1121 and / or the second sub-support layer 1122 have an opening 1111). When the material of the first support layer 111 is a composite material of carbon fiber and resin, the third support layer 114 has an opening 1111 corresponding to the non-bending region B (i.e., the third sub-support layer 1141 and / or the fourth sub-support layer 1142 have an opening 1111). During the lamination process of the first, second, and third support layers 111, 112, and 114, the resin in the material of the first support layer 111 flows into the openings 1111 on the second and third support layers 1114, resulting in a strong interfacial bonding force at the lamination interface, thereby preventing the first, second, and third support layers 111, 112, and 114 from separating during prolonged bending. Optionally, the material of the third support layer 114 is a composite material of carbon fiber and resin. Optionally, the opening 1111 is a blind hole or a through hole; when the opening 1111 is a blind hole, the resin can be prevented from flowing to the surface of the second supporting layer 112 away from the first supporting layer 111 or the surface of the third supporting layer 114 away from the first supporting layer 111.

[0056] In one embodiment, the first support layer 111 has an opening 1111 corresponding to the non-bending region B. When the material of the second support layer 112 is a composite material of carbon fiber and resin, the material of the third support layer 114 is also a composite material of carbon fiber and resin. During the pressing process of the first, second, and third support layers 111, 112, and 114, the resin in the material of the second support layer 112 flows into the opening 1111 of the first support layer 111, and the resin in the material of the third support layer 114 flows into the opening 1111 of the first support layer 111. This creates a strong interfacial bonding force at the pressing interface, preventing the first, second, and third support layers 111, 112, and 114 from separating during prolonged bending. Optionally, the material of the first support layer 111 is a composite material of carbon fiber and resin, or the material of the first support layer 111 includes stainless steel and titanium alloy. Optionally, the opening 1111 is a through hole. Optionally, the opening 1111 is a blind hole; specifically, a blind hole (opening 1111) is provided on the surface of the first supporting layer 111 close to the second supporting layer 112, so that the resin in the second supporting layer 112 material flows into the blind hole; a blind hole (opening 1111) is provided on the surface of the first supporting layer 111 close to the third supporting layer 114, so that the resin in the third supporting layer 114 material flows into the blind hole (opening 1111).

[0057] It can be understood that, compared with forming the openings 1111 on the second support layer 112 and the third support layer 114 respectively, forming the opening 1111 only on the first support layer 111 (the opening 1111 is a through hole) has a stronger interface bonding force while reducing the process complexity of the support module 11 and having stronger support.

[0058] In one embodiment, the thickness of the third supporting layer 114 is 25 μm-35 μm. Optionally, the thickness of the third supporting layer 114 is the same as the thickness of the first supporting layer 111 and the thickness of the second supporting layer 112. For example, the thickness of the first supporting layer 111 is 30 μm, the thickness of the second supporting layer 112 is 30 μm, and the thickness of the third supporting layer 114 is 30 μm.

[0059] In one embodiment, if Figure 4As shown, a first elastic filling layer 113 is provided in the gap between the first sub-support layer 1121 and the second sub-support layer 1122, and a second elastic filling layer 115 is provided in the gap between the third sub-support layer 1141 and the fourth sub-support layer 1142. The thickness of the first sub-support layer 1121, the thickness of the second sub-support layer 1122, and the thickness of the first elastic filling layer 113 are the same, that is, the surface of the first elastic filling layer 113 away from the first supporting layer 111 is flush with the surface of the first sub-support layer 1121 away from the first supporting layer 111, and the surface of the second sub-support layer 1122 away from the first supporting layer 111; the thickness of the third sub-support layer 1141, the fourth sub-support layer 1142, and the second elastic filling layer 115 are the same, that is, the surface of the second elastic filling layer 115 away from the first supporting layer 111 is flush with the surface of the third sub-support layer 1141 away from the first supporting layer 111, and the surface of the fourth sub-support layer 1142 away from the first supporting layer 111, so that the outer surface of the support module 11 is planar.

[0060] In one embodiment, if Figure 5 As shown, a first elastic filling layer 113 is provided on the surface of the second supporting layer 112 facing away from the first supporting layer 111, and the first elastic filling layer 113 extends to the gap between the first sub-support layer 1121 and the second sub-support layer 1122. A second elastic filling layer 115 is provided on the surface of the third supporting layer 114 facing away from the first supporting layer 111, and the second elastic filling layer 115 extends to the gap between the third sub-support layer 1141 and the fourth sub-support layer 1142. The surface of the first elastic filling layer 113 facing away from the first supporting layer 111 is planar, and the surface of the second elastic filling layer 115 facing away from the first supporting layer 111 is also planar, resulting in a planar outer surface of the support module 11. Optionally, the thickness of the first elastic filling layer 113 located on the surfaces of the first sub-support layer 1121 and the second sub-support layer 1122 is 8 μm to 12 μm; exemplarily, the thickness of the first elastic filling layer 113 located on the surfaces of the first sub-support layer 1121 and the second sub-support layer 1122 is 10 μm. Optionally, the thickness of the second elastic filling layer 115 located on the surfaces of the third sub-supporting layer 1141 and the fourth sub-supporting layer 1142 is 8 μm-12 μm; illustratively, the thickness of the second elastic filling layer 115 located on the surfaces of the third sub-supporting layer 1141 and the fourth sub-supporting layer 1142 is 10 μm. Optionally, the thickness of the first elastic filling layer 113 located on the surfaces of the first sub-supporting layer 1121 and the second sub-supporting layer 1122 is the same as the thickness of the second elastic filling layer 115 located on the surfaces of the third sub-supporting layer 1141 and the fourth sub-supporting layer 1142.

[0061] In one embodiment, the material of the first elastic filling layer 113 and / or the second elastic filling layer 115 includes thermoplastic polyurethane elastomer rubber.

[0062] In addition, the present application also provides an electronic device, which may include the display panel mentioned in any of the above embodiments. The electronic device may be a mobile phone, a laptop computer, a personal digital assistant (PDA), etc.

[0063] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel comprising a bending region and two non-bending regions located at opposite ends of the bending region, characterized in that: include: The supporting module includes a first supporting layer and a second supporting layer; the second supporting layer includes a first sub-support layer and a second sub-support layer arranged at intervals, the first sub-support layer and the second sub-support layer are arranged corresponding to the two non-bending areas respectively; the first supporting layer covers the bending area and the two non-bending areas; The support module further includes a third support layer, the third support layer being located on a surface of the first support layer away from the second support layer; the third support layer includes a third sub-support layer and a fourth sub-support layer that are spaced apart, the third sub-support layer and the fourth sub-support layer being respectively arranged corresponding to the two non-bending areas; the material of the third support layer is a composite material of carbon fiber and resin; the portion of the first support layer corresponding to the non-bending area has an opening, and the material of the second support layer is a composite material of carbon fiber and resin; A first elastic filling layer is provided at the interval between the first sub-support layer and the second sub-support layer; a second elastic filling layer is provided at the interval between the third sub-support layer and the fourth sub-support layer; Alternatively, a first elastic filling layer is provided on the surface of the second supporting layer away from the first supporting layer, and the first elastic filling layer extends to the gap between the first sub-support layer and the second sub-support layer; a second elastic filling layer is provided on the surface of the third supporting layer away from the first supporting layer, and the second elastic filling layer extends to the gap between the third sub-support layer and the fourth sub-support layer.

2. The display panel according to claim 1, wherein: The outer surface of the supporting module is a plane.

3. The display panel according to claim 1, wherein: The material of the first elastic filling layer and / or the second elastic filling layer includes thermoplastic polyurethane elastomer rubber.

4. The display panel according to any one of claims 1 to 3, wherein: The material of the first supporting layer includes stainless steel and titanium alloy.

5. The display panel according to claim 1, wherein: The thickness of the first supporting layer is 25 μm-35 μm; and / or the thickness of the second supporting layer is 25 μm-35 μm; and / or the thickness of the third supporting layer is 25 μm-35 μm.

6. The display panel according to claim 1, wherein: The thickness of the first supporting layer, the thickness of the second supporting layer, and the thickness of the third supporting layer are the same.

7. The display panel according to claim 1, wherein: The thickness of the first elastic filling layer located on the surface of the first sub-supporting layer and the second sub-supporting layer is 8 μm-12 μm; and / or the thickness of the second elastic filling layer located on the surface of the third sub-supporting layer and the fourth sub-supporting layer is 8 μm-12 μm.

8. The display panel according to claim 1, wherein: The thickness of the first elastic filling layer located on the surfaces of the first sub-supporting layer and the second sub-supporting layer is the same as the thickness of the second elastic filling layer located on the surfaces of the third sub-supporting layer and the fourth sub-supporting layer.

9. The display panel according to claim 1, wherein: The portion of the first supporting layer corresponding to the non-bending area has a plurality of openings, which are arranged in an array and are through holes or blind holes.

10. The display panel according to claim 1, wherein It also includes a display module, and the support module is arranged on one side of the display module to support the display module.

11. An electronic device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 10.

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