Display panel, manufacturing method of display panel, and display device

Abstract

The application provides a display panel, a manufacturing method of the display panel and a display device. The manufacturing method comprises the following steps: providing a flexible substrate, the flexible substrate comprising a first supporting part, a second supporting part and a third supporting part; the first supporting part, the second supporting part and the third supporting part are sequentially connected; wherein the second supporting part is provided with a wire; a pre-fracture structure is arranged on the wire; the flexible substrate is bent so that the second supporting part is in a curved state; wherein when the second supporting part is in the curved state, the wire forms a crack at the pre-fracture structure; conductive glue is filled into the crack by using a dispensing device. The application aims to solve the technical problem of how to further reduce the bending angle without affecting the yield of products.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and its manufacturing method, and a display device. Background Technology

[0002] OLED (Organic Light Emitting Diode) displays boast advantages such as wide color gamut, high contrast, energy efficiency, and foldability, making them highly competitive in the next generation of displays. Foldability is a key development direction for flexible display devices, and improving the foldability of flexible OLED displays has become a pressing issue.

[0003] In the existing technology, with the development of technology, it is becoming increasingly urgent to reduce the bending angle of OLEDs. However, the smaller the bending angle, the greater the stress generated when the functional film layer in the display device is bent in the bending area, which can easily cause the signal traces located in the bending area to break. Summary of the Invention

[0004] This application provides a display panel and its manufacturing method, as well as a display device, aiming to solve the technical problem of how to further reduce the bending angle without affecting the product yield.

[0005] Therefore, this application proposes a method for manufacturing a display panel, comprising:

[0006] A flexible substrate is provided, the flexible substrate including a first support portion, a second support portion and a third support portion; the first support portion, the second support portion and the third support portion are connected in sequence; wherein, a trace is provided on the second support portion, and a pre-fracture structure is provided on the trace;

[0007] The flexible substrate is bent so that the second support portion is in a bent state; wherein, when the second support portion is in the bent state, the trace forms a crack at the pre-fracture structure;

[0008] The conductive adhesive is filled into the crack using a dispensing device.

[0009] Optionally, the wiring has multiple lines, which are arranged in parallel; the provision of a pre-fracture structure on the wiring includes: providing a pre-fracture structure on each of the multiple wiring lines, and the distance between the pre-fracture structure on each wiring line and the first support portion is the same, such that when the second support portion is in the bent state, each wiring line forms a crack at its pre-fracture structure and each crack is at the same distance from the first support portion.

[0010] Optionally, filling the cracks with conductive adhesive using a dispensing device includes: driving the dispensing device to sequentially fill each crack with conductive adhesive along a preset trajectory; wherein the preset trajectory is determined based on the cracks on the multiple traces.

[0011] Optionally, the second support portion has a curved tip when it is in the curved state; the curved tip is the farthest point of the second support portion from the first support portion and the farthest point of the second support portion from the third support portion;

[0012] The provision of a pre-fracture structure on the wiring line includes:

[0013] The pre-fracture structure is provided at the position corresponding to the top of the bend on the routing line.

[0014] Optionally, before bending the flexible substrate to bring the second support portion into a bent state, the manufacturing method further includes:

[0015] A groove is provided on the routing line, and the groove is located at the same cross section as the pre-fracture structure, so that when the second support is in the bent state, the crack communicates with the groove.

[0016] This application also proposes a display panel including a flexible substrate, the flexible substrate including a first support portion, a second support portion and a third support portion connected in sequence; the second support portion is in a bent state; a trace is provided on the second support portion; wherein, the trace is formed with cracks, and the cracks are filled with conductive adhesive.

[0017] Optionally, there are multiple traces; the multiple traces are arranged in parallel, and each of the multiple traces has cracks, and each crack is at the same distance from the first support.

[0018] Optionally, the bending radius of the second support portion ranges from 0.05 to 0.3 mm.

[0019] Optionally, the bending radius of the second support portion ranges from 0.05 to 0.2 mm.

[0020] This application also proposes a display device, including a display panel manufactured by the method described above or a display panel as described above.

[0021] In the display panel manufacturing method proposed in this application, a pre-fracture structure is provided on the trace of the second support portion. When the flexible substrate is bent, causing the second support portion to bend, the pre-fracture structure, being a weak point on the trace, is under stress concentration, thus forming a crack. Since the pre-fracture structure is a pre-defined structure, its position on the trace is relatively fixed. Therefore, conductive adhesive is filled into the crack at this position using a dispensing device, making the crack complete and the trace intact. Thus, the technical solution of this application can reduce the bending radius, causing the trace to be subjected to greater bending stress, thereby causing the pre-fracture structure to form a crack. Then, conductive adhesive is used to fill the crack to compensate for it, so that after the crack forms at the pre-defined position, the trace can be intact, thereby improving the display quality of the display panel. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram illustrating a method for manufacturing a display panel according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the display panel before bending in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the display panel after bending in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the display panel during adhesive dispensing in an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the display panel from a top-down view in an embodiment of this application. Detailed Implementation

[0028] 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 the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known grooves and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0031] In existing technologies, adhesive protection and metal wire cutouts are commonly used to prevent cracking of the metal traces on the curved sections of the display panel. However, the larger the bending radius of the curved section, the wider the bezel of the display panel and the smaller the screen-to-body ratio. Therefore, to improve the screen-to-body ratio, the bending radius should be set smaller; however, the smaller the bending radius, the greater the bending stress on the metal traces on the curved section. Even with adhesive protection and metal wire cutouts, the metal traces may still break or crack, which will affect the display quality of the display panel. For example, it may lead to a decrease in the yield rate of the display panel during production, reduced reliability during use, or display abnormalities such as bright and dark lines.

[0032] Therefore, this application proposes a method for manufacturing a display panel, aiming to provide a method and display panel that can reduce the bending radius of the bent section while improving the display quality. The technical solution of this application mainly involves setting a pre-fracture structure on the traces; since the pre-fracture structure is a weak structure on the traces, when on a bent flexible substrate, the pre-fracture structure forms cracks under bending stress; then, conductive adhesive is filled at the cracks, thereby ensuring the integrity of the traces.

[0033] Specifically, this application proposes a method for manufacturing a display panel. For example... Figures 1 to 4 As shown, the manufacturing method includes:

[0034] S100, a flexible substrate is provided, the flexible substrate including a first support portion 100, a second support portion 200, and a third support portion 300; as shown Figure 2 As shown, the first support portion 100, the second support portion 200, and the third support portion 300 are connected in sequence; wherein, as... Figure 2 As shown, a wiring 210 is provided on the second support part 200; and a pre-fracture structure 211 is provided on the wiring 210.

[0035] S200, bend the flexible substrate so that the second support portion 200 is in a bent state; as Figure 4 As shown, when the second support 200 is in the bent state, the wiring 210 forms a crack 213 at the pre-fracture structure 211;

[0036] S300, such as Figure 4 As shown, conductive adhesive 215 is filled into the crack 213 using dispensing equipment 10.

[0037] In the method for manufacturing a display panel proposed in this application, a pre-fracture structure 211 is provided on the trace 210 of the second support portion 200. When the flexible substrate is bent, causing the second support portion 200 to bend, the pre-fracture structure 211 is a weak point on the trace 210 and is in a state of stress concentration, thus forming a crack 213. Since the pre-fracture structure 211 is a preset structure, its position on the trace 210 is relatively fixed. Therefore, conductive adhesive 215 is filled into the crack 213 at this position by the dispensing device 10, so that the crack 213 is filled and the trace 210 is intact. Therefore, the technical solution of this application can reduce the bending radius, so that the trace 210 is subjected to greater bending stress, causing the pre-fracture structure 211 to form a crack 213. Then, the crack 213 is filled with conductive adhesive 215 to compensate for the crack 213, so that after the crack 213 is formed at the preset position, the trace 210 can be intact to improve the display quality of the display panel.

[0038] In some specific technical solutions of this application, it is not necessary to apply UV adhesive to the second support portion 200, thereby further reducing the bending radius and allowing cracks 213 to form at the pre-fracture structure 211. In the prior art, applying UV adhesive to the second support portion 200 to ensure that no cracks 213 are generated on the trace 210 can only set the minimum bending radius to 0.3 mm; when the bending radius is further reduced, cracks 213 will occur on the trace 210 on the second support portion 200; however, in the technical solution of this application, the bending radius can be further reduced to 0.05 mm, thus forming cracks 213 at the pre-fracture structure 211 and filling the cracks 213 with conductive adhesive 215 to keep the trace 210 intact, thereby achieving the purpose of reducing the bending radius and ensuring reliable quality.

[0039] In the embodiment, the pre-fracture structure 211 can be formed by thinning, pre-setting pits, etc. The purpose is to set a stress concentration structure on the trace 210 so that when the trace 210 generates bending stress, the pre-fracture structure 211 will generate cracks 213 due to insufficient strength.

[0040] In the above embodiments, the conductive adhesive 215 can be silver-based conductive adhesive 215, gold-based conductive adhesive 215, copper-based conductive adhesive 215, carbon-based conductive adhesive 215, etc.; among them, the most widely used conductive adhesive 215 is silver-based conductive adhesive 215, that is, conductive silver paste.

[0041] In this embodiment, the dispensing device 10 may be an aerosol device, a dot fluid printing device, a laser-induced device, an inkjet printing device, or a UPD.

[0042] In general, in embodiments, the first support portion 100 and the third support portion 300 are provided with functional layers. These functional layers typically include an array layer and a pixel emissive layer, which are not the focus of this application's improvement and can be achieved using techniques well-known to those skilled in the art, and will not be elaborated upon here. The traces 210 provided on the second support portion 200 are mainly used for signal transmission between the functional layers on the first support portion 100 and the third support portion 300. In embodiments of this application, the functional layers can also be provided on the second support portion 200 as part of the display screen structure; in this structure, the traces 210 can be part of the functional layers on the second support portion 200.

[0043] In some embodiments, the flexible substrate can be made of polyimide film. Polyimide is often used in the production of display panels due to its advantages such as wide operating temperature range, chemical resistance, high strength, and good flexibility.

[0044] As an optional implementation method of the above embodiments, such as Figure 5 As shown, there are multiple traces 210, which are arranged in parallel. The provision of a pre-fracture structure 211 on the traces 210 includes: providing a pre-fracture structure 211 on each of the multiple traces 210, with the distance between the pre-fracture structure 211 on each trace 210 and the first support portion 100 being the same. This ensures that when the second support portion 200 is in the bent state, each trace 210 forms a crack 213 at its pre-fracture structure 211, and each crack 213 is at the same distance from the first support portion 100. In this embodiment, the pre-fracture structure 211 on each trace 210 is positioned at the same distance from the first support portion 100, so that the generated cracks 213 are in the same relative position, which facilitates improved efficiency of the conductive adhesive 215 application.

[0045] As an optional implementation of the above embodiments, the step of filling the cracks 213 with conductive adhesive 215 using the dispensing device 10 includes: driving the dispensing device 10 to sequentially fill each crack 213 with conductive adhesive 215 along a preset trajectory; wherein, the preset trajectory is determined based on the cracks 213 on the multiple lines 210. Generally, the multiple lines 210 are arranged in parallel, and the cracks 213 formed on the lines 210 are spaced apart, so the relative positions between the cracks 213 will determine a trajectory, and the movement trajectory of the dispensing device 10 is determined according to this trajectory. For example, in an embodiment, each line 210 is provided with a pre-fracture structure 211 at the same cross-section corresponding to the second support 200, so when the second support 200 is in a bent state, the cracks 213 will appear simultaneously at the same cross-section. At this time, the dispensing device 10 can perform dispensing operations by moving in a straight line corresponding to the cross-section, which can improve the efficiency of dispensing operations.

[0046] As an optional implementation method of the above embodiments, such as Figure 4 and Figure 5 As shown, the second support portion 200 has a curved tip 214 when it is in the bent state. The curved tip 214 is the farthest point of the second support portion 200 from the first support portion 100 and the farthest point of the second support portion 200 from the third support portion 300. Normally, when the first support portion 100 and the third support portion 300 are folded together, the curvature of the second support portion 200 is 180°; the junction of the first support portion 100 and the second support portion 200 is the first end; the junction of the second support portion 200 and the third support portion 300 is the second end. The central angle between the first end and the curved tip 214 is 90°, and the central angle between the second end and the curved tip 214 is also 90°. The first end, the curved tip 214, and the second end form an isosceles right triangle.

[0047] The provision of a pre-fracture structure 211 on the trace 210 includes: providing the pre-fracture structure 211 on the trace 210 at a position corresponding to the bend tip 214. For example... Figure 4 and Figure 5 As shown, when the second support portion 200 is not bent, the bent tip 214 is located at the centerline of the second support portion 200, and the first end and the second end are symmetrical about this centerline. At this time, when the second support portion 200 bends, since the pre-fracture structure 211 of the trace 210 is located at the centerline, the bending stress on the pre-fracture structure 211 is the greatest, causing the trace 210 to generate a crack 213 at this location.

[0048] For example, in the embodiment, each line 210 is provided with a pre-fracture structure 211 at the cross section where the center line of the second support 200 is located. Therefore, when the second support 200 is in a bent state, cracks 213 will appear at the top of the bend 214. At this time, the dispensing device 10 can perform dispensing operation by moving in a straight line to correspond to the top of the bend 214, which can improve the efficiency of dispensing operation.

[0049] As an optional implementation of the above embodiments, before bending the flexible substrate so that the second support portion 200 is in a bent state, such as... Figure 2 As shown, the manufacturing method further includes: providing a groove 212 on the trace 210, the groove 212 being located at the same cross-section as the pre-fracture structure 211, so that when the second support portion 200 is in the bent state, the crack 213 communicates with the groove 212. On the one hand, providing the groove 212 can increase the stress concentration at the cross-section where the pre-fracture structure 211 is located; on the other hand, when filling the conductive adhesive 215, the conductive adhesive 215 flowing into the groove 212 can effectively prevent the lateral expansion of the conductive adhesive 215, thereby preventing the traces 210 from connecting in series.

[0050] Based on the above manufacturing method, this application also proposes a display panel, such as... Figure 3 As shown, the flexible substrate includes a first support portion 100, a second support portion 200, and a third support portion 300 connected in sequence; the second support portion 200 is in a bent state; a trace 210 is provided on the second support portion 200; wherein, the trace 210 has cracks 213, and the cracks 213 are filled with conductive adhesive 215.

[0051] In this embodiment, when the trace 210 of the second support portion 200 bends, cracks 213 are generated. The cracks 213 are filled with conductive adhesive 215, which fills the cracks 213 and makes the trace 210 intact. Therefore, in the technical solution of this application, the bending radius of the second support portion 200 can be smaller, so that the trace 210 is subjected to greater bending stress to form cracks 213; then, the cracks 213 are filled with conductive adhesive 215 to compensate for the cracks 213, and the trace 210 can be intact to improve the display quality of the display panel.

[0052] In some embodiments, a pre-fracture structure 211 is provided on the trace 210 of the second support portion 200. When the flexible substrate is bent, causing the second support portion 200 to bend, the pre-fracture structure 211 is a weak point on the trace 210 and is in a state of stress concentration, thus forming a crack 213. Since the pre-fracture structure 211 is a preset structure, its position on the trace 210 is relatively fixed. Therefore, the conductive adhesive 215 is filled into the crack 213 at this position by the dispensing device 10, so that the crack 213 is filled and the trace 210 is intact. Therefore, the technical solution of this application can reduce the bending radius, so that the trace 210 is subjected to greater bending stress, causing the pre-fracture structure 211 to form a crack 213. Then, the crack 213 is filled with conductive adhesive 215 to compensate for the crack 213, so that after the crack 213 is formed at the preset position, the trace 210 can be intact to improve the display quality of the display panel.

[0053] In general, in embodiments, the first support portion 100 and the third support portion 300 are provided with functional layers. These functional layers typically include an array layer and a pixel emissive layer, which are not the focus of this application's improvement and can be achieved using techniques well-known to those skilled in the art, and will not be elaborated upon here. The traces 210 provided on the second support portion 200 are mainly used for signal transmission between the functional layers on the first support portion 100 and the third support portion 300. In embodiments of this application, the functional layers can also be provided on the second support portion 200 as part of the display screen structure; in this structure, the traces 210 can be part of the functional layers on the second support portion 200.

[0054] As an optional implementation of the above embodiments, there are multiple traces 210; the multiple traces 210 are arranged in parallel, and each of the multiple traces 210 has cracks 213 formed therein, and each crack 213 is at the same distance from the first support portion 100. In this embodiment, the pre-fracture structure 211 on each trace 210 is set at a position at the same distance from the first support portion 100, so that the generated cracks 213 are in the same relative position, which facilitates the improvement of the efficiency of applying conductive adhesive 215.

[0055] In some specific technical solutions of this application, the first support portion 100 and the third support portion 300 are bonded together with an adhesive layer, eliminating the need to apply UV adhesive to the second support portion 200. This allows for a further reduction in the bending radius, enabling the formation of a crack 213 at the pre-fracture structure 211. In the prior art, applying UV adhesive to the second support portion 200 to ensure no cracks 213 form on the trace 210 limits the minimum bending radius to 0.3 mm. Further reduction in the bending radius results in cracks 213 forming on the trace 210 on the second support portion 200. However, in the technical solution of this application, the bending radius can be further reduced to 0.05 mm. By forming a crack 213 at the pre-fracture structure 211 and filling the crack with conductive adhesive 215, the trace 210 remains intact, achieving both a reduced bending radius and reliable quality. In the structure of this application, the bending radius of the second support portion 200 ranges from 0.05 to 0.3 mm. For example, the bending radius of the second support 200 can be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, or 0.29mm, or any other value not mentioned above from 0.05mm to 0.3mm.

[0056] In particular, in the technical solution of this application, the bending radius of the second support portion 200 ranges from 0.05 to 0.2 mm. For example, the bending radius of the second support portion 200 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, or 0.2 mm, or any other value not exemplified above from 0.05 to 0.2 mm.

[0057] This application also proposes a display device, comprising a display panel manufactured by the aforementioned display panel manufacturing method or a display panel as described above. In embodiments, since the display panel in this display device is manufactured using some or all of the aforementioned display panel manufacturing methods, the display device possesses some or all of the technical advantages of the aforementioned embodiments. Alternatively, since the display panel in this display device is manufactured using some or all of the aforementioned display panel embodiments, the display device possesses some or all of the technical advantages of the aforementioned embodiments. Furthermore, the display device also includes structures such as a functional layer, a polarizer, an adhesive layer, and a cover plate. The functional layer, polarizer, adhesive layer, and cover plate all employ techniques well-known to those skilled in the art, and will not be described in detail here.

[0058] The functional layer can be disposed on the first support portion 100 and the third support portion 300, and the trace 210 on the second support portion 200 is used for signal transmission between the functional layer of the first support portion 100 and the functional layer of the third support portion 300. The functional layer can also be disposed on the second support portion 200, wherein the trace 210 can be a part of the functional layer on the second support portion 200.

[0059] It should be noted that the film layer structure of the display device provided in this application is not limited to the above embodiments. The content of the above embodiments is only for more detailed illustration of the overall structure of the display device provided in this application and should not be construed as limiting this application.

[0060] The above provides a detailed description of a display panel, its manufacturing method, and the display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for manufacturing a display panel, characterized in that, include: A flexible substrate is provided, the flexible substrate including a first support portion, a second support portion and a third support portion; the first support portion, the second support portion and the third support portion are connected in sequence; wherein, a trace is provided on the second support portion, and a pre-fracture structure is provided on the trace; The flexible substrate is bent so that the second support portion is in a bent state; wherein, when the second support portion is in the bent state, the trace forms a crack at the pre-fracture structure; The conductive adhesive is filled into the crack using a dispensing device.

2. The method for manufacturing a display panel as described in claim 1, characterized in that, The wiring has multiple lines, and the multiple lines are arranged in parallel. The provision of a pre-fracture structure on the wiring line includes: A pre-fracture structure is provided on each of the multiple routing lines, and the distance between the pre-fracture structure on each routing line and the first support is the same, so that when the second support is in the bending state, each routing line forms a crack at its pre-fracture structure and each crack is at the same distance from the first support.

3. The method for manufacturing a display panel as described in claim 2, characterized in that, The step of filling the crack with conductive adhesive using a dispensing device includes: The dispensing device is driven to sequentially fill each crack with conductive adhesive along a preset trajectory; wherein the preset trajectory is determined based on the cracks on the multiple lines.

4. The method for manufacturing a display panel as described in claim 1, characterized in that, The second support portion has a curved tip when it is in the curved state; the curved tip is the farthest point of the second support portion from the first support portion and the farthest point of the second support portion from the third support portion; The provision of a pre-fracture structure on the wiring line includes: The pre-fracture structure is provided at the position corresponding to the top of the bend on the routing line.

5. The method for manufacturing a display panel as described in claim 1, characterized in that, Before bending the flexible substrate to bring the second support portion into a bent state, the manufacturing method further includes: A groove is provided on the routing line, and the groove is located at the same cross section as the pre-fracture structure, so that when the second support is in the bent state, the crack communicates with the groove.

6. A display panel, characterized in that, The invention includes a flexible substrate, which comprises a first support portion, a second support portion, and a third support portion connected in sequence; the second support portion is in a bent state; a trace is provided on the second support portion; wherein the trace has cracks, and the cracks are filled with conductive adhesive.

7. The display panel as described in claim 6, characterized in that, The wiring consists of multiple lines; the multiple lines are arranged in parallel, and each of the multiple lines has cracks, with each crack being equidistant from the first support portion.

8. The display panel as described in claim 6, characterized in that, The bending radius of the second support portion ranges from 0.05 to 0.3 mm.

9. The display panel as described in claim 8, characterized in that, The bending radius of the second support portion ranges from 0.05 to 0.2 mm.

10. A display device, characterized in that, The display panel manufactured by the method of manufacturing the display panel according to any one of claims 1 to 5, or the display panel according to any one of claims 6 to 9.

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