Substrate and array substrate, display panel, display device

Abstract

The application 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. 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 application comprises the first flat area, the second flat area and the bending area. The first flat area and the second flat area are connected through the bending area. The first flexible substrate and the second flexible substrate are in contact through the bending area. The adhesion between the film layers in the bending area is improved, the anti-collision ability of the bending area is improved, the risk of film layer peeling is reduced, and the performance of the display panel is improved.

Description

TECHNICAL FIELD

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

[0002] With the development of display technology, foldable display devices have appeared in the market. Such display devices with folding function can switch screen size by folding. For example, in the use state, the folding screen is unfolded to obtain a larger display size to improve the experience, and in the non-use state, the folding screen size is reduced by folding to facilitate carrying.

[0003] However, since the bending area of the folding screen is a flexible material, it is prone to film peeling under external force, increasing the risk of screen failure. SUMMARY

[0004] Therefore, 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] To achieve the above purpose, the present application provides a substrate comprising a first flat area, a second flat area and a bending area, the first flat area and the second flat area being connected by the bending area, the substrate further comprising:

[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 area, the first flexible substrate and the second flexible substrate are in contact.

[0010] In one embodiment, the bending area comprises a middle area and an end area, the end area is disposed on both sides of the middle area, and the middle area and the end area are arranged along a first direction; wherein the first direction is the length direction of the bending area.

[0011] In the end area, the first flexible substrate and the second flexible substrate are at least partially in contact;

[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 and the material of the second flexible substrate are the same.

[0014] In one embodiment, the buffer layer comprises a hollow region in the end region, and the first flexible substrate and the second flexible substrate are in contact through the hollow region.

[0015] Preferably, the buffer layer comprises a plurality of hollow regions in the end region, and the plurality of hollow regions are arranged in intervals.

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

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

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

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

[0020] In one embodiment, the buffer layer has no overlap with the end region in the orthographic projection on the second flexible substrate, the orthographic projection of the first flexible substrate on the second flexible substrate has no overlap with the orthographic projection of the end region on the second flexible substrate, and the second flexible substrate is in contact with the sidewall of the first flexible substrate.

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

[0022] Based on the same inventive concept, the present application further discloses an array substrate comprising:

[0023] a substrate comprising a first flat region, a second flat region and a bending region, the first flat region and the second flat region being connected through the bending region, the substrate further comprising a first flexible substrate, a second flexible substrate and a buffer layer, the buffer layer being arranged between the first flexible substrate and the second flexible substrate;

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

[0025] a driving circuit arranged on the metal trace layer;

[0026] In the bending region, the first flexible substrate and the second flexible substrate are in contact.

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

[0028] Preferably, the bending area comprises a middle area and end areas, the end areas are arranged on both sides of the middle area, and the middle area and the end areas are arranged along a first direction, wherein the first direction is a length direction of the bending area;

[0029] In the end areas, the first flexible substrate at least partially contacts the second flexible substrate;

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

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

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

[0033] Preferably, a projection of the buffer layer on the first flexible substrate does not overlap with a projection of the end areas on the first flexible substrate, and in the end areas, the first flexible substrate fully contacts the second flexible substrate;

[0034] Preferably, a projection of the buffer layer on the second flexible substrate does not overlap with a projection of the end areas on the second flexible substrate, a projection of the first flexible substrate on the second flexible substrate does not overlap with a projection of the end areas on the second flexible substrate, and the second flexible substrate contacts a sidewall of the first flexible substrate;

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

[0036] In one embodiment, in the end areas, the buffer layer comprises a hollow region, and the first flexible substrate contacts the second flexible substrate through the hollow region;

[0037] Preferably, in the end areas, the buffer layer comprises a plurality of the hollow regions, and the plurality of the hollow regions are separated;

[0038] Preferably, in the end portion, the hollowed-out regions extend along a second direction, and the length of the hollowed-out regions is equal to the width direction of the bending portion; wherein the second direction is the width direction of the bending portion.

[0039] Preferably, in the end portion, the hollowed-out regions are arranged in the first direction.

[0040] Preferably, in the end portion, the hollowed-out regions are arranged in the first direction and the second direction.

[0041] Based on the same inventive concept, the application further discloses a display panel comprising the substrate or the array substrate.

[0042] Based on the same inventive concept, the application further discloses a display device comprising the display panel.

[0043] Compared with the prior art, the substrate provided by the application comprises a first flat portion, a second flat portion and a bending portion, the first flat portion and the second flat portion are connected through the bending portion, and the first flexible substrate and the second flexible substrate are contacted through the bending portion, so that the bonding force between the film layers of the bending portion is improved, the anti-collision ability of the bending portion is improved, the film layer peeling risk is reduced, and the performance of the display panel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are only embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0045] Figure 1 It is a related substrate film layer structure schematic diagram;

[0046] Figure 2 It is a related substrate film layer peeling schematic diagram;

[0047] Figure 3 It is a schematic diagram of the buffer layer in the substrate provided by an embodiment of the application;

[0048] Figure 4 It is a schematic diagram of the buffer layer in the substrate provided by another embodiment of the application;

[0049] Figure 5 It is a related substrate film layer structure schematic diagram provided by another embodiment of the application;

[0050] Figure 6 It is a schematic diagram of the buffer layer in the substrate provided by another embodiment of the application;

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

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

[0053] Figure 9 A schematic diagram of a buffer layer in a substrate according to another embodiment of the present application;

[0054] Figure 10 A schematic diagram of a film layer structure of a substrate according to another embodiment of the present application;

[0055] Figure 11 A schematic diagram of a film layer structure of an array substrate according to another embodiment of the present application;

[0056] Figure 12 A schematic diagram of a region division of an array substrate according to another embodiment of the present application.

[0057] Legend:

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

[0059] 1, first flexible substrate;

[0060] 2, second flexible substrate;

[0061] 3, buffer layer; 31, hollowed region;

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

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

[0064] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" 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 trend in future mobile electronic products. Display modules using foldable displays can be unfolded or folded as needed, enhancing the user experience. When unfolded, foldable displays offer a larger display area and improved display quality. When folded, they are convenient for users to carry while providing a smaller display area.

[0066] In the bending zone, the substrate of the foldable display needs to be made of a flexible material to enable 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. The buffer layer 3 is disposed between the first flexible substrate 1 and the second flexible substrate 2. Because the first flexible substrate 1, the second flexible substrate 2, and the buffer layer 3 are all flexible materials, the edges of the bending area are prone to film peeling when subjected to external force. (Refer to...) 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. The film peeling will be exaggerated after bending, which will lead to the failure of the screen.

[0068] Based on this, this application provides a substrate solution to address the aforementioned problems.

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

[0070] The substrate 100 further comprises 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 and the second flexible substrate 2 are in contact.

[0071] The substrate 100 provided by the embodiment comprises 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. By contacting the first flexible substrate 1 and the second flexible substrate 2 in the bending area 130, the bonding force between the film layers in the bending area 130 is improved, thereby improving the anti-collision ability of the bending area 130, reducing the risk of film layer 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, by directly contacting the first flexible substrate 1 and the second flexible substrate 2 in the bending area 130, the anti-collision ability of the bending area 130 can be effectively improved, and the risk of film layer peeling can be reduced.

[0073] Please refer to Figure 3 In one embodiment, the bending area 130 comprises a middle area 131 and an end area 132. The end area 132 is arranged on both sides of the middle area 131, and the middle area 131 and the end area 132 are arranged along a first direction (e.g., the Y direction in the figure). The first direction is the length direction of the bending area 130.

[0074] In the end area 132, the first flexible substrate 1 and the second flexible substrate 2 are at least partially in contact. In the middle area 131, the first flexible substrate 1 and the second flexible substrate 2 are arranged with the buffer layer 3 therebetween.

[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 and further ensure 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 improve the bonding force between the film layers in the end area 132 and improve the anti-collision ability of the edge of the bending area 130.

[0076] Preferably, the material of the first flexible substrate 1 and the material of the second flexible substrate 2 are the same. 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 layer peeling.

[0077] Please refer to Figure 4 and 5As shown, in one embodiment, in the end portion region 132, the buffer layer 3 comprises a hollow region 31, and the first flexible substrate 1 contacts the second flexible substrate 2 through the hollow region 31. When the edge of the bending region 130 collides and causes film layer peeling, the film layer peeling stops when it spreads to the hollow region 31, effectively preventing the expansion of the film layer peeling range.

[0078] Referring to Figure 4 As shown, in one embodiment, in the end portion region 132, the buffer layer 3 comprises 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 portion region 132, the hollow region 31 extends along the second direction (such as the X direction in the figure), and the length of the hollow region 31 is equal to the width direction of the bending region 130, which can more effectively prevent the expansion of the film layer peeling range. The second direction is the width direction of the bending region 130, and the Z direction in the figure is the thickness direction of the film layer.

[0080] Referring to Figure 4 As shown, in one embodiment, in the end portion region 132, a plurality of hollow regions 31 are arranged at intervals along the first direction, forming a plurality of protections, thereby effectively preventing the expansion of the film layer peeling range.

[0081] Referring to Figure 6 As shown, in one embodiment, in the end portion region 132, a plurality of hollow regions 31 are arranged at intervals along the first direction and the second direction. This is beneficial to improve the bonding force of the material of the first flexible substrate 1 and the second flexible substrate 2 in the end portion region 132, and further improve the anti-collision ability of the bending region 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] Referring to Figure 7 And 8 As shown, in one embodiment, the orthogonal projection of the buffer layer 3 on the first flexible substrate 1 does not overlap with the orthogonal projection of the end portion region 132 on the first flexible substrate 1, and in the end portion region 132, the first flexible substrate 1 contacts the second flexible substrate 2. This is beneficial to improve the contact area of the first flexible substrate 1 and the second flexible substrate 2 in the end portion region 132, thereby improving the bonding force between the first flexible substrate 1 and the second flexible substrate 2, and further improving the anti-collision ability of the end portion region 132.

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

[0085] Referring to Figure 9 In one embodiment, the edge of the buffer layer 3 is etched to form the hollow region 31 in the end region 132, so that the edge of the bending region 130 has multiple protections, and the anti-collision ability of the edge of the bending region 130 is further improved.

[0086] Referring to Figure 10 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 region 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 region 132 on the second flexible substrate 2, and the second flexible substrate 2 is in contact with the sidewall of the first flexible substrate 1. The bonding force between the second flexible substrate 2 and the first flexible substrate 1 can be improved, and the anti-collision ability of the edge of the bending region 130 is improved.

[0087] Preferably, the second flexible substrate 2 covers the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1, and the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1 are wrapped by the second flexible substrate 2, so that the anti-collision ability of the edge of the bending region 130 is further improved.

[0088] Referring to Figure 11-12 Based on the same inventive concept, the application also discloses an array substrate 200, which comprises a substrate 100, a metal trace layer M and a driving circuit, the substrate 100 comprises a first flat region 110, a second flat region 120 and a bending region 130, the first flat region 110 and the second flat region 120 are connected through the bending region 130, the substrate 100 further comprises 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 trace 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 trace layer M; in the bending region 130, the first flexible substrate 1 is in contact with the second flexible substrate 2.

[0089] The embodiment provides the array substrate 200, the substrate 100 of which comprises a first flat region 110, a second flat region 120 and a bending region 130, the first flat region 110 and the second flat region 120 are connected through the bending region 130, and the first flexible substrate 1 and the second flexible substrate 2 are contacted through the bending region 130, so that the bonding force between the film layers of the bending region 130 is improved, the anti-collision ability of the bending region 130 is improved, the risk of film layer peeling is reduced, and the performance of the array substrate 200 is improved.

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

[0091] Preferably, the bending area 130 comprises a middle area 131 and end areas 132 arranged on both sides of the middle area 131, and the middle area 131 and the end areas 132 are arranged along a first direction, which is a length direction of the bending area 130.

[0092] In the end areas 132, the first flexible substrate 1 and the second flexible substrate 2 are at least partially in contact with each other, and in the middle area 131, the first flexible substrate 1 and the second flexible substrate 2 are separated by the buffer layer 3.

[0093] Specifically, the first flexible substrate 1 and the second flexible substrate 2 are not in contact with each other 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 with each other in the end areas 132, which can improve the bonding force between the film layers in the end areas 132 and improve the anti-collision ability of the edge of the bending area 130.

[0094] Preferably, the normal projection of the gate driving circuit 230 on the substrate 100 does not overlap with the normal projection of the end areas 132 on the substrate 100, thereby avoiding the influence of the end areas 132 on the gate driving circuit 230.

[0095] Preferably, the driving circuit further comprises a pixel driving circuit 240, and a normal projection of the pixel driving circuit 240 on the substrate 100 is located within a normal projection of the display area 210 on the substrate 100, thereby realizing the normal display function of the display area 210.

[0096] Preferably, the normal projection of the buffer layer 3 on the first flexible substrate 1 does not overlap with the normal projection of the end areas 132 on the first flexible substrate 1, and in the end areas 132, the first flexible substrate 1 and the second flexible substrate 2 are in full contact with each other, as shown in Figure 7 and 8 This is advantageous to improve the contact area of the first flexible substrate 1 and the second flexible substrate 2 in the end areas 132, thereby improving the bonding force between the first flexible substrate 1 and the second flexible substrate 2, and further improving the anti-collision ability of the end areas 132.

[0097] Preferably, the second flexible substrate 2 covers the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1, and the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1 are wrapped by the second flexible substrate 2, further improving the anti-collision ability of the edge of the bending area 130. Figure 10 The bonding force between the second flexible substrate 2 and the first flexible substrate 1 can be improved, and the anti-collision ability of the edge of the bending area 130 can be improved.

[0098] Preferably, the second flexible substrate 2 covers the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1, and the sidewall of the buffer layer 3 and the sidewall of the first flexible substrate 1 are wrapped by the second flexible substrate 2, further improving the anti-collision ability of the edge of the bending area 130.

[0099] 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, as shown in Figure 4 and 5 When the edge of the bending area 130 collides and causes film layer peeling, the film layer peeling stops when it spreads to the hollow area 31, effectively preventing the expansion of the film layer peeling range.

[0100] In one embodiment, in the end area 132, the buffer layer 3 includes a plurality of hollow areas 31, and the plurality of hollow areas 31 are arranged at intervals. The plurality of hollow areas 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; the second direction is the width direction of the bending area 130; the expansion of the film layer peeling range can be more effectively prevented.

[0102] In one embodiment, in the end area 132, the plurality of hollow areas 31 are arranged at intervals along the first direction, forming a plurality of protections, thereby effectively preventing the expansion of the film layer peeling range, as shown in Figure 4

[0103] In one embodiment, in the end area 132, the plurality of hollow areas 31 are arranged at intervals along the first direction and the second direction. This is conducive to improving the bonding force of 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, as shown in Figure 6

[0104] Based on the same inventive concept, the application also discloses a display panel, which comprises the substrate 100 or the array substrate 200 in the above-mentioned embodiments. ​​

[0105] The display panel provided by the embodiment includes a substrate 100, 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 contacted through the bending area 130, so that the bonding force between the film layers of the bending area 130 is improved, the anti-collision ability of the bending area 130 is improved, the risk of film layer peeling is reduced, and the performance of the display panel is improved.

[0106] Based on the same inventive concept, another embodiment of the present application further discloses a display device comprising the display panel in the above-mentioned embodiments. Further, the display device comprises a mobile phone, a VR device, a computer, a television, a vehicle-mounted display device, etc.

[0107] The display device provided by the embodiment includes a display panel, the substrate 100 of the display panel 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 contacted through the bending area 130, so that the bonding force between the film layers of the bending area 130 is improved, the anti-collision ability of the bending area 130 is improved, the risk of film layer peeling is reduced, and the performance of the display device is improved.

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

[0109] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0110] The embodiments of the present application are intended to cover all such alternatives, modifications and variations as falling within the scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the embodiments of the present application are intended to be included herein.

Claims

1. An array substrate, characterized by, The array substrate comprises: a substrate comprising a first flat area, a second flat area and a bending area, the first flat area and the second flat area being connected by the bending area, the substrate further comprising a first flexible substrate, a second flexible substrate and a buffer layer, the buffer layer being arranged between the first flexible substrate and the second flexible substrate; a metal trace layer arranged on a side of the second flexible substrate away from the first flexible substrate; a driving circuit arranged on the metal trace layer; in the bending area, the first flexible substrate and the second flexible substrate are in contact; 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, a projection of the gate driving circuit on the substrate is located within a projection of the non-display area on the substrate; the bending area comprises a middle area and an end area, the end area being arranged on both sides of the middle area, the middle area and the end area being arranged along a first direction; wherein the first direction is a length direction of the bending area; in the end area, the first flexible substrate and the second flexible substrate are at least partially in contact; in the middle area, the first flexible substrate and the second flexible substrate are spaced apart by the buffer layer; a projection of the gate driving circuit on the substrate and a projection of the end area on the substrate do not overlap.

2. The array substrate of claim 1, wherein, the driving circuit further comprises a pixel driving circuit, a projection of the pixel driving circuit on the substrate is located within a projection of the display area on the substrate.

3. The array substrate of claim 1, wherein, a projection of the buffer layer on the first flexible substrate and a projection of the end area on the first flexible substrate do not overlap, in the end area, the first flexible substrate and the second flexible substrate are in full contact.

4. The array substrate of claim 1, wherein, a projection of the buffer layer on the second flexible substrate and a projection of the end area on the second flexible substrate do not overlap, a projection of the first flexible substrate on the second flexible substrate and a projection of the end area on the second flexible substrate do not overlap, the second flexible substrate is in contact with a sidewall of the first flexible substrate.

5. The array substrate of claim 1, wherein, the second flexible substrate covers a sidewall of the buffer layer and a sidewall of the first flexible substrate.

6. The array substrate of claim 1, wherein, in the end area, the buffer layer comprises a hollow region, the first flexible substrate and the second flexible substrate are in contact through the hollow region.

7. The array substrate of claim 6, wherein, in the end area, the buffer layer comprises a plurality of hollow regions, the plurality of hollow regions are spaced apart.

8. The array substrate of claim 7, wherein, in the end area, the hollow region extends along a second direction, and a length of the hollow region is equal to a width direction of the bending area; wherein the second direction is the width direction of the bending area.

9. The array substrate of claim 7, wherein, in the end area, the plurality of hollow regions are spaced apart along the first direction.

10. The array substrate of claim 8, wherein, in the end area, the plurality of hollow regions are spaced apart along the first direction and the second direction.

11. A display panel, characterized by, The display panel comprises the array substrate as claimed in any one of claims 1-10.

12. A display device, characterized by comprising: The display panel comprises the array substrate as claimed in claim 11.

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