Display panel and display device

Abstract

The invention discloses a display panel and a display device.The display panel comprises a hole opening area, a display area at least partially surrounding the hole opening area and a partition area located between the hole opening area and the display area, and the display panel comprises a first substrate located in the display area, the hole opening area and the partition area; the first barrier layer is arranged on one side of the first substrate, and at least part of the first barrier layer is located in the partition area; the first buffer layer is arranged on the side, away from the first substrate, of the first barrier layer, at least part of the first buffer layer is located in the partition area, the display panel is provided with a first barrier groove located in the partition area, and the first barrier groove penetrates through the first buffer layer and the first barrier layer and extends into the first substrate; the functional layer is arranged on the side, away from the first substrate, of the first buffer layer and is at least located in the partition area; the packaging layer is arranged on the side, away from the first substrate, of the functional layer, at least part of the packaging layer is located in the partition area, and part of the packaging layer is filled in the first blocking groove. The water and oxygen erosion resistance of the display panel can be improved.

Description

Technical Field

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

[0002] With the development of display technology, people have higher and higher requirements on display panels. However, the barrier ability of display panels to water and oxygen still needs to be improved. The display area of ​​the display panel is easily corroded by water and oxygen. Summary of the invention

[0003] The present application provides a display panel and a display device, which can improve the water and oxygen corrosion resistance of the display panel.

[0004] According to a first aspect of an embodiment of the present application, there is provided a display panel, comprising an opening area, a display area at least partially surrounding the opening area, and a partition area between the opening area and the display area, wherein the display panel comprises: a first substrate, located in the display area, the opening area and the partition area; a first barrier layer, arranged on one side of the first substrate and at least partially located in the partition area; a first buffer layer, arranged on a side of the first barrier layer away from the first substrate and at least partially located in the partition area, wherein the display panel is provided with a first blocking groove located in the partition area, the first blocking groove passes through the first buffer layer and the first barrier layer, and extends into the first substrate; a functional layer, arranged on a side of the first buffer layer away from the first substrate and at least located in the partition area; an encapsulation layer, arranged on a side of the functional layer away from the first substrate, at least partially located in the partition area, and partially filling the first blocking groove.

[0005] A second aspect of an embodiment of the present application provides a display device, comprising a display panel in any one of the above-mentioned implementations.

[0006] The beneficial effects of the present application are as follows: the partition area of ​​the present application is provided with a first blocking groove, which can increase the transmission path of water and oxygen invading the display area from the opening area, thereby reducing the corrosion rate of water and oxygen; at the same time, the first blocking layer serves as a part of the side wall of the first blocking groove, thereby preventing a part of water and oxygen from invading the functional layer from the first substrate through the encapsulation layer in the first blocking groove, thereby improving the reliability of the partition area. Therefore, this embodiment can improve the ability and reliability of the partition area to block water and oxygen as a whole, thereby reducing the risk of water and oxygen invading the display area from the opening area through the partition area, thereby improving the reliability of the display area and improving the ability of the display panel to resist water and oxygen corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0008] Figure 1 It is a schematic structural diagram of an embodiment of a display panel of the present application;

[0009] Figure 2 yes Figure 1 A schematic cross-sectional view of a display panel in the middle partition area B along the section line a according to an embodiment;

[0010] Figure 3 yes Figure 2 A partial enlarged view of the middle B1 area;

[0011] Figure 4 yes Figure 1 A schematic cross-sectional view of another embodiment of a display panel in a middle partition area B along a section line a;

[0012] Figure 5 yes Figure 4 A partial enlarged view of the middle B2 area;

[0013] Figure 6 yes Figure 1 A schematic cross-sectional view of another embodiment of a display panel in a middle partition area B along a section line a;

[0014] Figure 7 yes Figure 6 A partial enlarged view of the B3 area. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0017] like Figure 1 As shown, Figure 1 It is a structural schematic diagram of an embodiment of the display panel of the present application. The display panel 100 includes an opening area C, a display area A at least partially surrounding the opening area, and a partition area B located between the opening area C and the display area A. Among them, the opening area C is provided with a through hole that penetrates the display panel 100, and the imaging element or the photosensitive element can be arranged in the opening area C to realize the corresponding imaging or fingerprint recognition function. The display area A at least partially surrounds the opening area C. Depending on the structure of the display panel 100 and the position of the opening area C, the display area A can be set to completely surround the opening area C, or the display area A can be set to partially surround the opening area C. At the same time, the display area A can realize the display function of the display panel 100, and the partition area B is located between the display area A and the opening area C of the display panel 100, which can reduce the risk of water and oxygen invading the display area A from the opening area C through the partition area B, thereby improving the structural reliability of the display area A.

[0018] See also Figure 2 as well as Figure 3 The display panel 100 includes a first substrate 11 , a first barrier layer 31 , a first buffer layer 21 , a functional layer 41 and an encapsulation layer 50 .

[0019] The first substrate 11 is located in the display area A, the opening area C and the partition area B. Specifically, the first substrate 11 plays a supporting role in the display panel 100, and is located in the display area A, the opening area C and the partition area B, wherein the first substrate 11 can be flexible, and thus can be stretched, folded, bendable or rollable, so that the display panel 100 can be stretchable, foldable, bendable or rollable. The first substrate 11 can be a single-layer structure or a laminated structure. In an application scenario, the first substrate 11 can include at least one organic layer and at least one inorganic layer stacked, and the material of the organic layer can be a flexible material such as polyimide, and the material of the inorganic layer can be a material with good water vapor barrier performance such as silicon nitride. At the same time, the first substrate 11 can be transparent, translucent or opaque. Of course, the first substrate 11 can also be a rigid substrate, for example, its material is glass. In summary, the present application does not limit the specific structure of the first substrate 11.

[0020] The first barrier layer 31 is disposed on one side of the first substrate 11 and is at least partially located in the isolation area B for blocking water and oxygen.

[0021] The first buffer layer 21 is disposed on the side of the first barrier layer 31 away from the first substrate 11, and is at least partially located in the partition area B, wherein the display panel is provided with a first barrier groove 01 located in the partition area B, and the first barrier groove 01 penetrates the first buffer layer 21 and the first barrier layer 31, and extends into the first substrate 11. Specifically, the first buffer layer 21 can buffer the stress during processing, reduce the risk of deformation or warping of the first substrate 11, and the first buffer layer 21 can also play a certain role in blocking the transmission of water and oxygen, and can reduce the risk of water and oxygen erosion from the first substrate 11 to the functional layer 41. At the same time, the first blocking groove 01 penetrates the first buffer layer 21, the first blocking layer 31 and extends to the first substrate 11. The setting of the first blocking groove 01 can increase the transmission path of water and oxygen invading the display area A from the opening area C, thereby reducing the water and oxygen erosion rate, thereby improving the ability of the partition area B to block water and oxygen; further, when a through hole is formed in the opening area C using a laser cutting process or a scribing process, if cracks or deformations are formed in the first substrate 11 or the first buffer layer 21, the first blocking groove 01 can also reduce or prevent the cracks or deformations from extending to the display area A.

[0022] The functional layer 41 is arranged on the side of the first buffer layer 21 away from the first substrate 11, and is at least located in the partition area B. The functional layer 41 may include film layers such as a light-emitting material layer and a cathode layer. In the preparation process, after the first substrate 11, the first barrier layer 31 and the first buffer layer 21 are formed in sequence, the first blocking groove 01 is formed, and then when the functional layer 41 is formed, since the first blocking groove 01 has been formed, the functional layer 41 is disconnected at the first blocking groove 01, that is, the functional layer 41 located in the partition area B will not be a continuous film layer on the entire surface. This setting can prevent cracks generated by cutting from entering the display area A along the functional layer 41, and can also prevent water and oxygen in the opening area C from entering the display area A along the functional layer 41.

[0023] The encapsulation layer 50 is disposed on the side of the functional layer 41 away from the first substrate 11, at least partially located in the partition area B, and partially filled in the first blocking groove 01. The encapsulation layer 50 is partially filled in the first blocking groove 01, which can improve the ability of the bottom wall and side wall of the first blocking groove 01 to block water and oxygen. For example, in an application scenario, the encapsulation layer 50 is filled in the first blocking groove 01, covering the bottom wall and / or side wall of the first blocking groove 01.

[0024] In the prior art, the above-mentioned first barrier layer 31 is not provided, and the encapsulation layer 50 filled in the first barrier groove 01 is prone to phenomena such as denitrification under high temperature and high humidity conditions (especially when the materials of the encapsulation layer 50 and the first buffer layer 21 include silicon nitride), thereby reducing the ability of the encapsulation layer 50 in the first barrier groove 01 to block water and oxygen. In the present embodiment, the first barrier layer 31 can not only block a part of water and oxygen from the first substrate 11 through the first buffer layer 21 to invade the functional layer 41, but also the first barrier layer 31 can also serve as a part of the side wall of the first barrier groove 01, blocking a part of water and oxygen from the first substrate 11 through the encapsulation layer 50 in the first barrier groove 01 to invade the functional layer 41, that is, it can block a part of water and oxygen from the first substrate 11 to invade the functional layer 41. Therefore, the provision of the first barrier layer 31 in the present embodiment can improve the ability of the partition area B to block water and oxygen and the reliability of the partition area B as a whole.

[0025] Among them, the functional layer 41 can further extend into the display area A. The functional layer 41 can specifically include a light-emitting element (not shown). The number of the light-emitting elements can be one or more. When the number of the light-emitting elements is more than one, some of the light-emitting elements emit red light, some emit green light, and some emit blue light. It should be noted that the color of the light emitted by the light-emitting element is not limited to red, green, and blue, but can also be yellow or other colors, which are not limited here.

[0026] In one embodiment, the first barrier layer 31 may further extend into the display area A. The first barrier layer 31 is disposed on the side of the functional layer 41 close to the first substrate 11, and can be used to reduce the water and oxygen intrusion from the first substrate 11 into the functional layer 41, thereby improving the reliability of the display area A.

[0027] In one embodiment, the first barrier layer 31 is a metal barrier layer. For example, the material of the first barrier layer 31 includes at least one of molybdenum, titanium, and copper. The beneficial effect of this configuration is that molybdenum, titanium, and copper can effectively improve the water and oxygen barrier capacity of the first barrier layer 31, and molybdenum, titanium, and copper are common materials that are easily obtained in production and manufacturing, which can reduce the cost of production and manufacturing.

[0028] In other embodiments, the first barrier layer 31 also includes other materials, which are not specifically limited.

[0029] In one embodiment, the thickness of the first barrier layer 31 is in the range of 250-650 mm.

[0030] Specifically, in some application scenarios, the thickness of the first barrier layer 31 is 250mm, 260mm, 288mm, 355mm, 367mm, 380mm, 400mm, 469mm, 476.5mm, 500mm, 520.5mm, 550mm, 590mm, 600mm, 625mm, 640mm or 650mm, etc., which can achieve better water and oxygen barrier effect, and the implementation process is simple, which is convenient for reducing manufacturing costs.

[0031] In one embodiment, if Figure 2 As shown, the display panel 100 also includes a dam 61, which is located in the partition area B and is arranged between the first buffer layer 21 and the functional layer 41, wherein the first blocking groove 01 is located on the side of the dam 61 close to the display area A, and the first blocking layer 31 and the encapsulation layer 50 are at least partially located on the side of the dam 61 close to the display area A.

[0032] Specifically, the dam 61 is located in the partition area B and is arranged between the first buffer layer 21 and the functional layer 41. On the one hand, the setting of the dam 61 can increase the propagation path of water and oxygen invading the display area A from the opening area C, thereby reducing the water and oxygen erosion rate, that is, it can play a role in blocking water and oxygen from invading the display area A from the opening area C; on the other hand, the dam 61 can also block the organic materials in the display area A, reducing the risk of organic material overflow and the like.

[0033] Considering that the side of the dam 61 close to the display area A is closer to the display area A, the first barrier layer 31 and the encapsulation layer 50 are at least partially located on the side of the dam 61 close to the display area A, which can better prevent water and oxygen from invading the display area A.

[0034] In one embodiment, the dam 61 is disposed around the opening area C, thereby preventing water and oxygen from invading the display area A from all aspects.

[0035] In one embodiment, the first blocking groove 01 is disposed around the opening area C, thereby preventing water and oxygen from invading the display area A from all aspects.

[0036] In other embodiments, the dam 61 and the first blocking groove 01 may also be disposed only around a portion of the opening area C.

[0037] like Figure 2 As shown, in one embodiment, the first barrier layer 31 and the encapsulation layer 50 cover the partition area B, and the first buffer layer 21 is further provided with a second blocking groove 02, the second blocking groove 02 is located on the side of the dam 61 close to the opening area C, and the second blocking groove 02 penetrates the first buffer layer 21 and the first barrier layer 31, and extends into the first substrate 11.

[0038] Specifically, the first barrier layer 31 and the encapsulation layer 50 cover the partition area B, which can improve the ability of the partition area B to block water and oxygen; the second barrier groove 02 is arranged on the side of the dam 61 close to the opening area C, that is, on the side of the dam 61 away from the display area A, which can further increase the propagation path of water and oxygen from the opening area C through the partition area B to invade the display area A, thereby reducing the water and oxygen erosion rate.

[0039] In one embodiment, there are multiple second blocking grooves 02, and the multiple second blocking grooves 02 are arranged in a ring matrix around the opening area C. This arrangement can further increase the barrier effect of the partition area B on water and oxygen, and improve the reliability of the display area A.

[0040] It should be noted that, in other embodiments, the first barrier layer 31 and the encapsulation layer 50 may not cover the partition area B. For example, in this case, the first barrier layer 31 and the encapsulation layer 50 may only be located on the side of the dam 61 close to the display area A.

[0041] In one embodiment, if Figure 4 and Figure 5 As shown, the first blocking groove 01 includes a first sub-groove 011 that penetrates the first buffer layer 21 and the first blocking layer 31, and a second sub-groove 012 that is arranged on the first substrate 11, and the first sub-groove 011 is connected to the second sub-groove 012, wherein the first sub-groove 011 includes a first end connected to the second sub-groove 012, and the second sub-groove 012 includes a second end connected to the first sub-groove 011, wherein the open area of ​​the first end is smaller than the open area of ​​the second end, that is, the first blocking groove 01 is a blocking groove that is narrow at the top and wide at the bottom.

[0042] The beneficial effect of the above arrangement is that the first sub-groove 011 penetrates the first buffer layer 21 and the first barrier layer 31, that is, the first barrier layer 31 serves as a partial side wall of the first sub-groove 011, and because the open area of ​​the first end of the first sub-groove 011 is smaller than the open area of ​​the second end of the second sub-groove 012, the first barrier layer 31 can block a portion of the transmission path of water and oxygen, that is, block a portion of water and oxygen from being transmitted from the first substrate 11 through the encapsulation layer 50 on the side wall of the second sub-groove 012 to the encapsulation layer 50 on the side wall of the first sub-groove 011, thereby being able to block a portion of water and oxygen from invading the functional layer 41 from the first barrier groove 01, thereby being able to improve the structural reliability of the partition area B and the ability to block water and oxygen.

[0043] In some embodiments, Figure 6 and Figure 7 As shown, the display panel 100 further includes a second barrier layer 32 , which is disposed in the first barrier groove 01 . The second barrier layer 32 is at least located on the side wall of the first buffer layer 21 and connected to the first barrier layer 31 .

[0044] First, the second barrier layer 32 is disposed in the first barrier groove 01, which can further block a portion of water and oxygen from invading the functional layer 41 via the encapsulation layer 50 on the side wall of the first barrier groove 01; further, since a portion of water and oxygen can invade the first buffer layer 21 from the first substrate 11 via the encapsulation layer 50 on the side wall of the first barrier groove 01, and then invade the functional layer 41 from the first buffer layer 21, the second barrier layer 32 can also block a portion of water and oxygen from invading the first buffer layer 21 from the first substrate 11 via the encapsulation layer 50 on the side wall of the first barrier groove 01, so the second barrier layer 32 can also reduce the risk of water and oxygen invading the first buffer layer 21. Therefore, the above arrangement can further improve the reliability of the isolation area B and the ability to block water and oxygen.

[0045] In one embodiment, the material of the second barrier layer 32 is the same as that of the first barrier layer 31 , so that the same material can be used in the preparation process, which can reduce costs and improve preparation efficiency.

[0046] In one embodiment, the thickness of the second barrier layer 32 may be the same as the thickness of the first barrier layer 31 .

[0047] Continue reading Figure 2 In one embodiment, the encapsulation layer 50 includes a first inorganic layer 51, an organic layer 52, and a second inorganic layer 53. The first inorganic layer 51 is partially disposed in the first blocking groove 01, and is partially formed on the side of the functional layer 41 away from the first substrate 11; the organic layer 52 is disposed on the side of the first inorganic layer 51 away from the first substrate 11 and fills the first blocking groove 01; the second inorganic layer 53 is disposed on the side of the organic layer 52 away from the first substrate 11.

[0048] The encapsulation layer 50 is used to encapsulate the functional layer 41, which is helpful to prevent the external water and oxygen from affecting the functional layer 41. The first inorganic layer 51 and the second inorganic layer 53 can minimize or completely prevent the penetration of water, oxygen and / or hydrogen into the functional layer 41. Therefore, as an embodiment, the organic layer 52 is arranged on the side of the first inorganic layer 51 away from the first substrate 11 and fills the first blocking groove 01, and the second inorganic layer 53 is arranged on the side of the organic layer 52 away from the first substrate 11, so that the first inorganic layer 51, the second inorganic layer 53, and the organic layer 52 are alternately stacked, thereby forming a barrier space that can block the entry of water and oxygen.

[0049] In other embodiments, the encapsulation layer 50 includes a plurality of inorganic layers and at least one organic layer stacked together, the at least one organic layer being disposed between the plurality of inorganic layers, and the plurality of inorganic layers forming a closed space that seals the organic layer. It should be understood that the inorganic layer can minimize or completely prevent the penetration of water, oxygen and / or hydrogen into the array layer and the light-emitting layer, and therefore, as an embodiment, the inorganic layer and the organic layer can be alternately stacked, the inorganic layer can be disposed as the topmost and bottommost layers of the encapsulation unit, and the outermost inorganic layer can completely cover the organic layer, thereby forming a barrier space that can block the entry of water and oxygen.

[0050] In one embodiment, the first inorganic layer 51 and the second inorganic layer 53 are made of the same material, so that the same material can be used in the preparation process, which can reduce costs and improve preparation efficiency.

[0051] In one embodiment, the material of the first inorganic layer 51 includes silicon nitride, and / or the material of the second inorganic layer 53 includes silicon nitride. In other embodiments, other materials may be used, which are not specifically limited.

[0052] In one embodiment, the first inorganic layer 51 may be deposited by chemical vapor deposition (CVD) technology; and / or the second inorganic layer 53 may be deposited by chemical vapor deposition (CVD) technology.

[0053] In one embodiment, the first inorganic layer 51 may be deposited by atomic layer deposition (ALD) technology; and / or the second inorganic layer 53 may be deposited by atomic layer deposition (ALD) technology.

[0054] In one embodiment, the organic layer 52 includes an organic glue. The organic glue can improve the physical protection of the encapsulation layer 50 on the functional layer 41, and prevent the functional layer 41 from being damaged by mechanical stress, moisture, and pollutants. Furthermore, the organic glue can also be used as an adhesive to improve the stability of the overall structure.

[0055] In one embodiment, the organic glue may be disposed only on one side of the dam 61 close to the display area A. The dam 61 can limit the position of the organic glue and reduce the overflow of the organic glue.

[0056] Continue reading Figure 2 In one embodiment, the display panel 100 further includes a second substrate 12 and a second buffer layer 22 . The second substrate 12 is disposed on a side of the first substrate 11 away from the first buffer layer 21 . The second buffer layer 22 is disposed between the second substrate 12 and the first substrate 11 .

[0057] The provision of the second substrate 12 can further improve the structural stability of the display panel 100. The provision of the second buffer layer 22 can further improve the buffering effect, buffer the stress during processing, and reduce the risk of deformation or curling of the first substrate 11 and the second substrate 12. The second buffer layer 22 can also play a certain role in blocking the transmission of water and oxygen, and can reduce the risk of water and oxygen erosion from the first substrate 11 to the functional layer 41.

[0058] In one embodiment, the first substrate 11 and the second substrate 12 are made of the same material, so that they can be prepared using the same material during the preparation process, which can reduce costs and improve preparation efficiency.

[0059] Specifically, the material, specific implementation and working principle of the second substrate 12 can refer to the above-mentioned first substrate 11, which will not be repeated here.

[0060] In one embodiment, the second buffer layer 22 is made of the same material as the first buffer layer 21 , so that the same material can be used in the preparation process, which can reduce costs and improve preparation efficiency.

[0061] In one embodiment, the material of the first buffer layer 21 and / or the second buffer layer 22 includes an inorganic insulating material, such as silicon oxide, silicon nitride, or silicon oxynitride, etc. In other embodiments, other materials may be used, which are not specifically limited.

[0062] It should also be noted that the display panel 100 of the present application can be an OLED display panel (Liquid Crystal Display), and the liquid crystal display panel can also be an LCD display panel (Liquid Crystal Display), a Mirco-LED display panel (Micro Light Emitting Diode), or other types of display panels. The present application does not limit the specific type of the display panel 100.

[0063] The present application further provides a display device, which includes the display panel 100 in any one of the above embodiments.

[0064] The specific implementation and working principle of the display panel 100 can be referred to the above embodiments, which will not be described in detail here. The display device can be any device with a restricted function such as a mobile phone, a computer, a game console, etc., which is not limited here.

[0065] It is worth noting that the drawings in this article are only intended to illustrate the structural relationship and connection relationship of the product of the present application, and do not limit the specific structural dimensions of the product of the present application.

[0066] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel includes an opening area, a display area at least partially surrounding the opening area, and a partition area between the opening area and the display area, and the display panel includes: A first substrate, located in the display area, the opening area and the partition area; A first barrier layer, disposed on one side of the first substrate and at least partially located in the isolation region; A first buffer layer is arranged on a side of the first barrier layer away from the first substrate and at least partially located in the partition area, wherein the display panel is provided with a first blocking groove located in the partition area, the first blocking groove penetrates the first buffer layer and the first barrier layer and extends into the first substrate; a functional layer, disposed on a side of the first buffer layer away from the first substrate and at least located in the isolation region; The encapsulation layer is arranged on a side of the functional layer away from the first substrate, is at least partially located in the partition area, and is partially filled in the first blocking groove.

2. The display panel according to claim 1, characterized in that: The material of the first barrier layer includes at least one of molybdenum, titanium and copper.

3. The display panel according to claim 1, characterized in that: The thickness of the first barrier layer is in the range of 250-650 mm.

4. The display panel according to claim 1, characterized in that: The display panel further includes: a dam, located in the partition area and disposed between the first buffer layer and the functional layer, wherein the first blocking groove is located on a side of the dam close to the display area, and the first blocking layer and the encapsulation layer are at least partially located on a side of the dam close to the display area; Preferably, the dam is arranged around the opening area; Preferably, the first blocking groove is arranged around the opening area.

5. The display panel according to claim 4, characterized in that: The first barrier layer and the encapsulation layer cover the partition area, the first buffer layer is further provided with a second barrier groove, the second barrier groove is located on a side of the dam close to the opening area, and the second barrier groove penetrates the first buffer layer and the first barrier layer and extends into the first substrate; Preferably, there are a plurality of the second blocking grooves, and the plurality of the second blocking grooves are arranged in a ring matrix around the opening area.

6. The display panel according to claim 1, characterized in that: The first blocking groove includes a first sub-groove that penetrates the first buffer layer and the first blocking layer, and a second sub-groove arranged on the first substrate, the first sub-groove is connected to the second sub-groove, wherein the first sub-groove includes a first end connected to the second sub-groove, and the second sub-groove includes a second end connected to the first sub-groove, wherein an open area of ​​the first end is smaller than an open area of ​​the second end.

7. The display panel according to claim 1, characterized in that: The display panel further includes: A second barrier layer, disposed in the first barrier groove, wherein the second barrier layer is at least located on a side wall of the first buffer layer and connected to the first barrier layer; Preferably, the material of the second barrier layer is the same as that of the first barrier layer.

8. The display panel according to claim 1, characterized in that: The encapsulation layer comprises: A first inorganic layer, partly disposed in the first blocking groove, and partly formed on a side of the functional layer away from the first substrate; An organic layer is disposed on a side of the first inorganic layer away from the first substrate and fills the first blocking groove; A second inorganic layer is disposed on a side of the organic layer away from the first substrate; Preferably, the first inorganic layer and the second inorganic layer are made of the same material.

9. The display panel according to claim 1, characterized in that: The display panel further includes: a second substrate, disposed on a side of the first substrate away from the first buffer layer; a second buffer layer, disposed between the second substrate and the first substrate; Preferably, the first substrate and the second substrate are made of the same material; Preferably, the second buffer layer is made of the same material as the first buffer layer.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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