Substrate, array substrate, display panel and display device

Abstract

The invention provides a substrate, an array substrate, a display panel and a display device.The substrate comprises a first flat area, a second flat area and a bending area, the first flat area and the second flat area are connected through the bending area, the substrate further comprises a first flexible substrate, a second flexible substrate and a buffer layer, and the second flexible substrate is arranged on one side of the first flexible substrate; the buffer layer is arranged between the first flexible substrate and the second flexible substrate; in the bending area, the first flexible substrate is in contact with the second flexible substrate. The substrate provided by the invention comprises the first flat region, the second flat region and the bending region, the first flat region and the second flat region are connected through the bending region, and the first flexible substrate and the second flexible substrate are in contact in the bending region, so that the binding force between film layers in the bending region is improved, and the collision resistance of the bending region is improved; the film stripping risk is reduced, and the performance of the display panel is improved.

Description

Technical Field

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

[0002] With the development of display technology, foldable display devices are now available on the market. Such display devices with folding functions can switch screen sizes by folding. For example, when in use, the foldable screen can be unfolded to obtain a larger display size to enhance the user experience, and when not in use, the screen size of the foldable screen can be reduced by folding to facilitate carrying.

[0003] However, since the bending area of ​​the folding screen is made of flexible material, the film layer is prone to peeling under the action of external force, increasing the risk of screen failure. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a substrate that can improve the anti-collision ability of the bending area and reduce the risk of film peeling.

[0005] Based on the above purpose, the present application provides a substrate, which includes a first flat area, a second flat area and a bending area, wherein the first flat area and the second flat area are connected through the bending area, and the substrate further includes:

[0006] a first flexible substrate;

[0007] a second flexible substrate, disposed on one side of the first flexible substrate;

[0008] a buffer layer, disposed between the first flexible substrate and the second flexible substrate;

[0009] In the bending region, the first flexible substrate contacts the second flexible substrate.

[0010] In one embodiment, the bending zone includes a middle zone and an end zone, the end zones are arranged on both sides of the middle zone, and the middle zone and the end zones are arranged along a first direction; wherein the first direction is the length direction of the bending zone;

[0011] In the end region, the first flexible substrate is at least partially in contact with the second flexible substrate;

[0012] In the middle area, the first flexible substrate and the second flexible substrate are spaced apart by the buffer layer;

[0013] Preferably, the material of the first flexible substrate is the same as that of the second flexible substrate.

[0014] In one embodiment, in the end region, the buffer layer includes a hollow area, and the first flexible substrate is in contact with the second flexible substrate through the hollow area;

[0015] Preferably, in the end area, the buffer layer includes a plurality of the hollow areas, and the plurality of the hollow areas are arranged at intervals;

[0016] Preferably, in the end region, the hollow region extends along the second direction, and the length of the hollow region is equal to the width direction of the bending region; wherein the second direction is the width direction of the bending region;

[0017] Preferably, in the end region, a plurality of the hollow regions are arranged at intervals along the first direction;

[0018] Preferably, in the end region, a plurality of the hollow areas are arranged at intervals along the first direction and the second direction.

[0019] In one embodiment, the orthographic projection of the buffer layer on the first flexible substrate has no overlap with the orthographic projection of the end region on the first flexible substrate, and in the end region, the first flexible substrate is completely in contact with the second flexible substrate.

[0020] In one embodiment, an orthographic projection of the buffer layer on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, an orthographic projection of the first flexible substrate on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, and the second flexible substrate contacts a side wall of the first flexible substrate;

[0021] Preferably, the second flexible substrate covers a side wall of the buffer layer and a side wall of the first flexible substrate.

[0022] Based on the same inventive concept, the present application also discloses an array substrate, which includes:

[0023] A substrate, the substrate comprising a first flat area, a second flat area and a bending area, the first flat area and the second flat area are connected through the bending area, the substrate further comprising a first flexible substrate, a second flexible substrate and a buffer layer, the buffer layer is arranged between the first flexible substrate and the second flexible substrate;

[0024] A metal wiring layer is arranged on a side of the second flexible substrate away from the first flexible substrate;

[0025] A driving circuit is arranged in the metal wiring layer;

[0026] In the bending region, the first flexible substrate contacts the second flexible substrate.

[0027] In one embodiment, the array substrate further includes a display area and a non-display area at least partially surrounding the display area, the driving circuit includes a gate driving circuit, and the orthographic projection of the gate driving circuit on the substrate is located within the orthographic projection of the non-display area on the substrate;

[0028] Preferably, the bending zone includes a middle zone and an end zone, the end zones are arranged on both sides of the middle zone, and the middle zone and the end zones are arranged along a first direction; wherein the first direction is the length direction of the bending zone;

[0029] In the end region, the first flexible substrate is at least partially in contact with the second flexible substrate;

[0030] In the middle area, the first flexible substrate and the second flexible substrate are spaced apart by the buffer layer;

[0031] Preferably, the orthographic projection of the gate driving circuit on the substrate does not overlap with the orthographic projection of the end region on the substrate;

[0032] Preferably, the driving circuit further comprises a pixel driving circuit, and an orthographic projection of the pixel driving circuit on the substrate is located within an orthographic projection of the display area on the substrate;

[0033] Preferably, the orthographic projection of the buffer layer on the first flexible substrate does not overlap with the orthographic projection of the end region on the first flexible substrate, and in the end region, the first flexible substrate is completely in contact with the second flexible substrate;

[0034] Preferably, an orthographic projection of the buffer layer on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, an orthographic projection of the first flexible substrate on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, and the second flexible substrate contacts a side wall of the first flexible substrate;

[0035] Preferably, the second flexible substrate covers a side wall of the buffer layer and a side wall of the first flexible substrate.

[0036] In one embodiment, in the end region, the buffer layer includes a hollow area, and the first flexible substrate is in contact with the second flexible substrate through the hollow area;

[0037] Preferably, in the end area, the buffer layer includes a plurality of the hollow areas, and the plurality of the hollow areas are arranged at intervals;

[0038] Preferably, in the end region, the hollow region extends along the second direction, and the length of the hollow region is equal to the width direction of the bending region; wherein the second direction is the width direction of the bending region;

[0039] Preferably, in the end region, a plurality of the hollow regions are arranged at intervals along the first direction;

[0040] Preferably, in the end region, a plurality of the hollow areas are arranged at intervals along the first direction and the second direction.

[0041] Based on the same inventive concept, the present application also discloses a display panel, which includes the above-mentioned substrate or array substrate.

[0042] Based on the same inventive concept, the present application also discloses a display device, which includes the above-mentioned display panel.

[0043] Compared with the prior art, the substrate provided in the present application includes a first flat area, a second flat area and a bending area. The first flat area and the second flat area are connected through the bending area, and the first flexible substrate and the second flexible substrate are contacted in the bending area, thereby improving the bonding force between the film layers in the bending area, thereby improving the anti-collision ability of the bending area, reducing the risk of film peeling, and improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A schematic diagram of a film layer structure of a related substrate;

[0046] Figure 2 A schematic diagram of film peeling of a related substrate;

[0047] Figure 3 A schematic diagram of a buffer layer in a substrate provided in an embodiment of the present application;

[0048] Figure 4 A schematic diagram of a buffer layer in a substrate provided in another embodiment of the present application;

[0049] Figure 5 A schematic diagram of a film layer structure of a substrate provided in another embodiment of the present application;

[0050] Figure 6 A schematic diagram of a buffer layer in a substrate provided in another embodiment of the present application;

[0051] Figure 7 A schematic diagram of a buffer layer in a substrate provided in another embodiment of the present application;

[0052] Figure 8 A schematic diagram of a film layer structure of a substrate provided in another embodiment of the present application;

[0053] Fig. 9 A schematic diagram of a buffer layer in a substrate provided in another embodiment of the present application;

[0054] Fig.10 A schematic diagram of a film layer structure of a substrate provided in another embodiment of the present application;

[0055] Fig.11 A schematic diagram of a film layer structure of an array substrate provided in another embodiment of the present application;

[0056] Fig.12 A schematic diagram of area division of an array substrate provided in another embodiment of the present application.

[0057] Marking Description:

[0058] 100, substrate; 110, first flat region; 120, second flat region; 130, bending region; 131, middle region; 132, end region;

[0059] 1. a first flexible substrate;

[0060] 2. a second flexible substrate;

[0061] 3. Buffer layer; 31. Hollow area;

[0062] 200, array substrate; M, metal wiring layer; 210, display area; 220, non-display area; 230, gate driving circuit; 240, pixel driving circuit. DETAILED DESCRIPTION

[0063] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0064] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0065] With the development of display technology, foldable displays have become a development trend of future mobile electronic products. Display modules using foldable displays can be unfolded or folded as needed, enhancing the user experience. When the foldable display is unfolded, it can provide a larger display area and improve the display effect. When the foldable display is folded, it is convenient for users to carry and can provide a smaller display area.

[0066] In the bending area, the substrate of the foldable display needs to be set to a flexible material to achieve the bending function.

[0067] Reference Figure 1 As shown, a related substrate 100 includes a first flexible substrate 1, a second flexible substrate 2 and a buffer layer 3, wherein the buffer layer 3 is disposed between the first flexible substrate 1 and the second flexible substrate 2. Since the first flexible substrate 1, the second flexible substrate 2 and the buffer layer 3 are all made of flexible materials, the edge of the bending area is prone to film peeling when subjected to external force. Figure 2 As shown, under the action of external force (such as collision, laser cutting, etc.), film peeling occurs between the second flexible substrate 2 and the buffer layer 3, and the film peeling will be exaggerated after bending, thereby causing the screen to fail.

[0068] Based on this, the present application provides a substrate solution to solve the above problems.

[0069] Please refer to Figure 1 and 3 As shown, a substrate 100 provided in an embodiment of the present application includes a first flat area 110 , a second flat area 120 and a bending area 130 , and the first flat area 110 and the second flat area 120 are connected through the bending area 130 .

[0070] The substrate 100 further includes a first flexible substrate 1, a second flexible substrate 2 and a buffer layer 3. The second flexible substrate 2 is arranged on one side of the first flexible substrate 1, and the buffer layer 3 is arranged between the first flexible substrate 1 and the second flexible substrate 2. In the bending area 130, the first flexible substrate 1 is in contact with the second flexible substrate 2.

[0071] The substrate 100 provided in this embodiment includes a first flat area 110, a second flat area 120 and a bending area 130. The first flat area 110 and the second flat area 120 are connected through the bending area 130, and the first flexible substrate 1 and the second flexible substrate 2 are brought into contact at the bending area 130, thereby improving the bonding force between the film layers in the bending area 130, thereby improving the anti-collision ability of the bending area 130, reducing the risk of film peeling, and improving the performance of the display panel.

[0072] Specifically, the bonding force between the two flexible substrates is greater than the bonding force between the flexible substrate and the buffer layer 3. Therefore, in the bending area 130, the first flexible substrate 1 and the second flexible substrate 2 are directly contacted, which can effectively improve the anti-collision ability of the bending area 130 and reduce the risk of film peeling.

[0073] Please refer to Figure 3 As shown, in one embodiment, the bending zone 130 includes a middle zone 131 and an end zone 132, and the end zone 132 is arranged on both sides of the middle zone 131, and the middle zone 131 and the end zone 132 are arranged along a first direction (such as the Y direction in the figure); wherein the first direction is the length direction of the bending zone 130.

[0074] In the end region 132 , the first flexible substrate 1 is at least partially in contact with the second flexible substrate 2 ; in the middle region 131 , the first flexible substrate 1 is spaced from the second flexible substrate 2 by a buffer layer 3 .

[0075] Specifically, the first flexible substrate 1 and the second flexible substrate 2 are not in contact in the middle area 131, which can ensure the continuity of the buffer layer 3 in the middle area 131, thereby ensuring the stability of the driving circuit above the middle area 131. The first flexible substrate 1 and the second flexible substrate 2 are in contact in the end area 132, which can enhance the bonding force between the film layers in the end area 132 and enhance the anti-collision ability of the edge of the bending area 130.

[0076] Preferably, the material of the first flexible substrate 1 is the same as that of the second flexible substrate 2. The bonding force between the same materials is greater, which can further improve the anti-collision ability of the bending area 130 and reduce the risk of film peeling.

[0077] Reference Figure 4 and 5As shown, in one embodiment, in the end area 132, the buffer layer 3 includes a hollow area 31, and the first flexible substrate 1 and the second flexible substrate 2 are in contact through the hollow area 31. When the edges of the bending area 130 collide and the film peeling occurs, the film peeling stops when it spreads to the hollow area 31, effectively preventing the expansion of the film peeling range.

[0078] Reference Figure 4 As shown, in one embodiment, in the end area 132, the buffer layer 3 includes a plurality of hollow regions 31, and the plurality of hollow regions 31 are arranged at intervals. The plurality of hollow regions 31 cooperate to effectively prevent the expansion of the film layer peeling range.

[0079] In one embodiment, referring to Figure 4 As shown, in the end area 132, the hollow area 31 extends along the second direction (such as the X direction in the figure), and the length of the hollow area 31 is equal to the width direction of the bending area 130, which can more effectively prevent the expansion of the film peeling range. Among them, the second direction is the width direction of the bending area 130, and the Z direction in the figure is the thickness direction of the film layer.

[0080] Reference Figure 4 As shown, in one embodiment, in the end area 132, a plurality of hollow regions 31 are arranged at intervals along the first direction to form multiple protections, thereby effectively preventing the film layer from being peeled off from expanding.

[0081] Reference Figure 6 As shown, in one embodiment, in the end area 132, a plurality of hollow areas 31 are arranged at intervals along the first direction and the second direction, which is beneficial to improving the bonding force between the material of the first flexible substrate 1 and the second flexible substrate 2 in the end area 132, and further improving the anti-collision ability of the bending area 130.

[0082] The hollow region 31 is formed by patterning the buffer layer 3 , and then the second flexible substrate 2 is prepared on the buffer layer 3 . The second flexible substrate 2 fills the hollow region 31 and contacts the first flexible substrate 1 .

[0083] Reference Figure 7 and 8 As shown, in one embodiment, the orthographic projection of the buffer layer 3 on the first flexible substrate 1 does not overlap with the orthographic projection of the end area 132 on the first flexible substrate 1. In the end area 132, the first flexible substrate 1 and the second flexible substrate 2 are completely in contact, which is beneficial to increase the contact area between the first flexible substrate 1 and the second flexible substrate 2 in the end area 132, thereby increasing the bonding force between the first flexible substrate 1 and the second flexible substrate 2, and further increasing the anti-collision ability of the end area 132.

[0084] Specifically, the buffer layer 3 in the end region 132 is completely etched away, so that the first flexible substrate 1 is completely in contact with the second flexible substrate 2 .

[0085] Reference Fig. 9 As shown, in one embodiment, in the end area 132, the edge of the buffer layer 3 is etched away, and at the same time, a hollow area 31 is etched to form a multi-layer protection, thereby further improving the anti-collision ability of the edge of the bending area 130.

[0086] Reference Fig.10 As shown, in one embodiment, the orthographic projection of the buffer layer 3 on the second flexible substrate 2 does not overlap with the orthographic projection of the end area 132 on the second flexible substrate 2, the orthographic projection of the first flexible substrate 1 on the second flexible substrate 2 does not overlap with the orthographic projection of the end area 132 on the second flexible substrate 2, and the second flexible substrate 2 contacts the side wall of the first flexible substrate 1, which can enhance the bonding force between the second flexible substrate 2 and the first flexible substrate 1, and enhance the anti-collision ability of the edge of the bending area 130.

[0087] Preferably, the second flexible substrate 2 covers the side walls of the buffer layer 3 and the side walls of the first flexible substrate 1 , and the side walls of the buffer layer 3 and the side walls of the first flexible substrate 1 are wrapped by the second flexible substrate 2 to further enhance the anti-collision capability of the edge of the rising bending area 130 .

[0088] Reference Figure 11-12 As shown, based on the same inventive concept, the present application also discloses an array substrate 200, which includes a substrate 100, a metal wiring layer M and a driving circuit. The substrate 100 includes a first flat area 110, a second flat area 120 and a bending area 130. The first flat area 110 and the second flat area 120 are connected through the bending area 130. The substrate 100 also includes a first flexible substrate 1, a second flexible substrate 2 and a buffer layer 3. The buffer layer 3 is arranged between the first flexible substrate 1 and the second flexible substrate 2; the metal wiring layer M is arranged on the side of the second flexible substrate 2 away from the first flexible substrate 1; the driving circuit is arranged on the metal wiring layer M; in the bending area 130, the first flexible substrate 1 is in contact with the second flexible substrate 2.

[0089] The present embodiment provides an array substrate 200, wherein the substrate 100 includes a first flat area 110, a second flat area 120 and a bending area 130. The first flat area 110 and the second flat area 120 are connected via the bending area 130, and the first flexible substrate 1 and the second flexible substrate 2 are brought into contact at the bending area 130, thereby improving the bonding force between the film layers in the bending area 130, thereby improving the anti-collision capability of the bending area 130, reducing the risk of film peeling, and improving the performance of the array substrate 200.

[0090] In one embodiment, the array substrate 200 further includes a display area 210 and a non-display area 220 at least partially surrounding the display area 210, and the driving circuit includes a gate driving circuit 230, and the orthographic projection of the gate driving circuit 230 on the substrate 100 is located within the orthographic projection of the non-display area 220 on the substrate 100, thereby reducing interference with the display area 210. The gate driving circuit 230 is used to control the opening and closing of the pixel unit.

[0091] Preferably, the bending zone 130 includes a middle zone 131 and an end zone 132 , the end zone 132 is arranged on both sides of the middle zone 131 , and the middle zone 131 and the end zone 132 are arranged along a first direction; wherein the first direction is the length direction of the bending zone 130 .

[0092] In the end region 132 , the first flexible substrate 1 is at least partially in contact with the second flexible substrate 2 ; in the middle region 131 , the first flexible substrate 1 is spaced from the second flexible substrate 2 by a buffer layer 3 .

[0093] Specifically, the first flexible substrate 1 and the second flexible substrate 2 are not in contact in the middle area 131, which can ensure the continuity of the buffer layer 3 in the middle area 131, thereby ensuring the stability of the driving circuit above the middle area 131. The first flexible substrate 1 and the second flexible substrate 2 are in contact in the end area 132, which can enhance the bonding force between the film layers in the end area 132 and enhance the anti-collision ability of the edge of the bending area 130.

[0094] Preferably, the orthographic projection of the gate driving circuit 230 on the substrate 100 does not overlap with the orthographic projection of the end region 132 on the substrate 100 , so as to avoid the end region 132 affecting the gate driving circuit 230 .

[0095] Preferably, the driving circuit further includes a pixel driving circuit 240 , and the orthographic projection of the pixel driving circuit 240 on the substrate 100 is located within the orthographic projection of the display area 210 on the substrate 100 , so as to realize the normal display function of the display area 210 .

[0096] Preferably, the orthographic projection of the buffer layer 3 on the first flexible substrate 1 does not overlap with the orthographic projection of the end region 132 on the first flexible substrate 1. In the end region 132, the first flexible substrate 1 is in full contact with the second flexible substrate 2. Figure 7 and 8 This is helpful to increase the contact area between the first flexible substrate 1 and the second flexible substrate 2 in the end region 132 , thereby increasing the bonding force between the first flexible substrate 1 and the second flexible substrate 2 , and further increasing the anti-collision capability of the end region 132 .

[0097] Preferably, the orthographic projection of the buffer layer 3 on the second flexible substrate 2 does not overlap with the orthographic projection of the end area 132 on the second flexible substrate 2, the orthographic projection of the first flexible substrate 1 on the second flexible substrate 2 does not overlap with the orthographic projection of the end area 132 on the second flexible substrate 2, and the second flexible substrate 2 contacts the side wall of the first flexible substrate 1. Fig.10 The bonding force between the second flexible substrate 2 and the first flexible substrate 1 can be improved, and the anti-collision capability of the edge of the bending area 130 can be improved.

[0098] Preferably, the second flexible substrate 2 covers the side walls of the buffer layer 3 and the side walls of the first flexible substrate 1 , and the side walls of the buffer layer 3 and the side walls of the first flexible substrate 1 are wrapped by the second flexible substrate 2 to further enhance the anti-collision capability of the edge of the rising bending area 130 .

[0099] In one embodiment, in the end region 132, the buffer layer 3 includes a hollow region 31, and the first flexible substrate 1 is in contact with the second flexible substrate 2 through the hollow region 31. Figure 4 and 5 When the edge of the bending area 130 collides and causes film peeling, the film peeling stops when it spreads to the hollow area 31, effectively preventing the expansion of the film peeling range.

[0100] In one embodiment, in the end area 132, the buffer layer 3 includes a plurality of hollow regions 31, and the plurality of hollow regions 31 are arranged at intervals. The plurality of hollow regions 31 cooperate to effectively prevent the expansion of the film layer peeling range.

[0101] In one embodiment, in the end area 132, the hollow area 31 extends along the second direction, and the length of the hollow area 31 is equal to the width direction of the bending area 130; wherein the second direction is the width direction of the bending area 130; it can more effectively prevent the expansion of the film peeling range.

[0102] In one embodiment, in the end area 132, a plurality of hollow regions 31 are arranged at intervals along the first direction to form multiple protections, thereby effectively preventing the film layer from being peeled off from expanding. Figure 4 shown.

[0103] In one embodiment, in the end region 132, a plurality of hollow regions 31 are arranged at intervals along the first direction and the second direction. This is beneficial to improving the bonding force between the material of the first flexible substrate 1 and the second flexible substrate 2 in the end region 132, and further improving the anti-collision ability of the bending region 130, as shown in FIG. Figure 6 shown.

[0104] Based on the same inventive concept, the present application also discloses a display panel, which includes the substrate 100 or the array substrate 200 in the above embodiment.

[0105] The present embodiment provides a display panel, wherein the substrate 100 includes a first flat area 110, a second flat area 120 and a bending area 130. The first flat area 110 and the second flat area 120 are connected via the bending area 130, and the first flexible substrate 1 and the second flexible substrate 2 are brought into contact at the bending area 130, thereby improving the bonding force between the film layers in the bending area 130, thereby improving the anti-collision ability of the bending area 130, reducing the risk of film peeling, and improving the performance of the display panel.

[0106] Based on the same inventive concept, another embodiment of the present application further discloses a display device, which includes the display panel in the above embodiment. Further, the display device includes a mobile phone, VR equipment, computer, television, car display equipment, etc.

[0107] In the display device provided in the present embodiment, in its display panel, the substrate 100 includes a first flat area 110, a second flat area 120 and a bending area 130. The first flat area 110 and the second flat area 120 are connected through the bending area 130, and the first flexible substrate 1 and the second flexible substrate 2 are brought into contact at the bending area 130, thereby improving the bonding force between the film layers in the bending area 130, thereby improving the anti-collision ability of the bending area 130, reducing the risk of film peeling, and being beneficial to improving the performance of the display device.

[0108] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0109] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0110] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A substrate, characterized in that: The substrate comprises a first flat area, a second flat area and a bending area, wherein the first flat area and the second flat area are connected via the bending area, and the substrate further comprises: a first flexible substrate; a second flexible substrate, disposed on one side of the first flexible substrate; a buffer layer, disposed between the first flexible substrate and the second flexible substrate; In the bending region, the first flexible substrate contacts the second flexible substrate.

2. The substrate according to claim 1, characterized in that The bending zone includes a middle zone and an end zone, the end zones are arranged on both sides of the middle zone, and the middle zone and the end zones are arranged along a first direction; wherein the first direction is the length direction of the bending zone; In the end region, the first flexible substrate is at least partially in contact with the second flexible substrate; In the middle area, the first flexible substrate and the second flexible substrate are spaced apart by the buffer layer; Preferably, the material of the first flexible substrate is the same as that of the second flexible substrate.

3. The substrate according to claim 2, characterized in that In the end region, the buffer layer includes a hollow region, and the first flexible substrate is in contact with the second flexible substrate through the hollow region; Preferably, in the end area, the buffer layer includes a plurality of the hollow areas, and the plurality of the hollow areas are arranged at intervals; Preferably, in the end region, the hollow region extends along the second direction, and the length of the hollow region is equal to the width direction of the bending region; wherein the second direction is the width direction of the bending region; Preferably, in the end region, a plurality of the hollow regions are arranged at intervals along the first direction; Preferably, in the end region, a plurality of the hollow areas are arranged at intervals along the first direction and the second direction.

4. The substrate according to claim 2, characterized in that The orthographic projection of the buffer layer on the first flexible substrate has no overlap with the orthographic projection of the end region on the first flexible substrate, and in the end region, the first flexible substrate is completely in contact with the second flexible substrate.

5. The substrate according to claim 2, characterized in that The orthographic projection of the buffer layer on the second flexible substrate does not overlap with the orthographic projection of the end region on the second flexible substrate, the orthographic projection of the first flexible substrate on the second flexible substrate does not overlap with the orthographic projection of the end region on the second flexible substrate, and the second flexible substrate contacts a side wall of the first flexible substrate; Preferably, the second flexible substrate covers a side wall of the buffer layer and a side wall of the first flexible substrate.

6. An array substrate, characterized in that: include: A substrate, the substrate comprising a first flat area, a second flat area and a bending area, the first flat area and the second flat area are connected through the bending area, the substrate further comprising a first flexible substrate, a second flexible substrate and a buffer layer, the buffer layer is arranged between the first flexible substrate and the second flexible substrate; A metal wiring layer is arranged on a side of the second flexible substrate away from the first flexible substrate; A driving circuit is arranged in the metal wiring layer; In the bending region, the first flexible substrate contacts the second flexible substrate.

7. The array substrate according to claim 6, characterized in that: The array substrate further comprises a display area and a non-display area at least partially surrounding the display area, the driving circuit comprises a gate driving circuit, and the orthographic projection of the gate driving circuit on the substrate is located within the orthographic projection of the non-display area on the substrate; Preferably, the bending zone includes a middle zone and an end zone, the end zones are arranged on both sides of the middle zone, and the middle zone and the end zones are arranged along a first direction; wherein the first direction is the length direction of the bending zone; In the end region, the first flexible substrate is at least partially in contact with the second flexible substrate; In the middle area, the first flexible substrate and the second flexible substrate are spaced apart by the buffer layer; Preferably, the orthographic projection of the gate driving circuit on the substrate does not overlap with the orthographic projection of the end region on the substrate; Preferably, the driving circuit further comprises a pixel driving circuit, and an orthographic projection of the pixel driving circuit on the substrate is located within an orthographic projection of the display area on the substrate; Preferably, the orthographic projection of the buffer layer on the first flexible substrate does not overlap with the orthographic projection of the end region on the first flexible substrate, and in the end region, the first flexible substrate is completely in contact with the second flexible substrate; Preferably, an orthographic projection of the buffer layer on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, an orthographic projection of the first flexible substrate on the second flexible substrate does not overlap with an orthographic projection of the end region on the second flexible substrate, and the second flexible substrate contacts a side wall of the first flexible substrate; Preferably, the second flexible substrate covers a side wall of the buffer layer and a side wall of the first flexible substrate.

8. The array substrate according to claim 7, characterized in that: In the end region, the buffer layer includes a hollow region, and the first flexible substrate is in contact with the second flexible substrate through the hollow region; Preferably, in the end area, the buffer layer includes a plurality of the hollow areas, and the plurality of the hollow areas are arranged at intervals; Preferably, in the end region, the hollow region extends along the second direction, and the length of the hollow region is equal to the width direction of the bending region; wherein the second direction is the width direction of the bending region; Preferably, in the end region, a plurality of the hollow regions are arranged at intervals along the first direction; Preferably, in the end region, a plurality of the hollow areas are arranged at intervals along the first direction and the second direction.

9. A display panel, characterized in that: It comprises a substrate as described in any one of claims 1 to 5, or an array substrate as described in any one of claims 6 to 8.

10. A display device, characterized in that: Comprising the display panel as claimed in claim 9.

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