Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a display area and a non-display area around the display area. The display panel further comprises a substrate, a light-emitting layer, a first dam, a second dam, an encapsulation layer and a touch layer. The encapsulation layer comprises a first inorganic layer, a first organic layer, a second inorganic layer and a second organic layer. The orthographic projection of the boundary of the first organic layer on the substrate is located between the orthographic projection of the first dam and the second dam on the substrate. The orthographic projection of the boundary of the second organic layer on the substrate is located on the side of the orthographic projection of the boundary of the first organic layer on the substrate close to the display area. The thickness of the second organic layer is 2-7 microns, and the thickness of the first organic layer is 2-14 microns. The above scheme meets the requirement of narrow frame and improves the touch performance.

Description

Technical Field

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

[0002] To prevent moisture and oxygen from entering, existing display panels have an encapsulation layer on the surface of the light-emitting layer. For display panels with touch functionality, there are also touch traces on one side of the encapsulation layer.

[0003] However, existing encapsulation layers are prone to creating steps on the light-emitting layer. Due to the uneven surface of the encapsulation layer, on the one hand, the touch traces on the touch trace layer located on the encapsulation layer are of varying thickness, and the thinner touch traces are prone to open circuits; on the other hand, short circuits can easily occur between adjacent traces on both sides of the step. Summary of the Invention

[0004] The main technical problem addressed by this application is to provide a display panel and display device that, while satisfying the requirements of narrow bezels, improves touch performance.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: providing a display panel, including a display area and a non-display area located around the display area, the display panel further including: a substrate and a light-emitting layer, a first dam and a second dam disposed on one side of the substrate and arranged sequentially along the direction from the display area to the non-display area; an encapsulation layer covering the light-emitting layer, the first dam and the second dam; a touch layer disposed on the side of the encapsulation layer away from the substrate; wherein, the encapsulation layer includes a first inorganic layer, a first organic layer, a second inorganic layer and a second organic layer stacked sequentially along the direction away from the substrate; the orthographic projection of the boundary of the first organic layer on the substrate is located between the orthographic projections of the first dam and the second dam on the substrate, the orthographic projection of the boundary of the second organic layer on the substrate is located on the side of the orthographic projection of the boundary of the first organic layer on the substrate closer to the display area; and the thickness of the second organic layer is 2μm-7μm, and the thickness of the first organic layer is 2μm-14μm.

[0006] To solve the above-mentioned technical problems, another technical solution adopted in this application is: providing a display panel, including a display area and a non-display area surrounding the display area. The display panel includes: a substrate and a light-emitting layer, a first dam, and a second dam disposed on one side of the substrate and arranged sequentially along the direction from the display area to the non-display area; an encapsulation layer covering the light-emitting layer, the first dam, and the second dam; and a touch layer disposed on the side of the encapsulation layer away from the substrate. The encapsulation layer includes a first inorganic layer, a first organic layer, a second inorganic layer, and a second organic layer stacked sequentially along the direction away from the substrate. The orthographic projection of the boundary of the second organic layer on the substrate is located between the orthographic projections of the first dam and the second dam on the substrate, and the orthographic projection of the boundary of the first organic layer on the substrate is located on the side of the orthographic projection of the boundary of the second organic layer on the substrate closer to the display area. The thickness of the first organic layer is 2μm-7μm, and the thickness of the second organic layer is 2μm-14μm.

[0007] To solve the above-mentioned technical problems, another technical solution adopted in this application is: providing a display panel, including a display area and a non-display area located around the display area. The display panel includes: a substrate and a light-emitting layer, a first dam, and a second dam disposed on one side of the substrate and arranged sequentially along the direction from the display area to the non-display area; an encapsulation layer covering the light-emitting layer, the first dam, and the second dam, the encapsulation layer including and arranged sequentially along the direction away from the substrate, a first inorganic layer, an organic layer, and a second inorganic layer; the thickness of the organic layer is 8μm-14μm; a touch layer disposed on the side of the encapsulation layer away from the substrate; the first inorganic layer has a groove formed between the first dam and the second dam.

[0008] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a display device, including the display panel in any embodiment.

[0009] The beneficial effects of this application are as follows: Unlike existing technologies, the display panel and display device provided in this application divide the organic layer in the encapsulation layer into two organic layers of different lengths. The longer organic layer terminates between the first and second dams. Because this longer organic layer extends beyond the first dam, it does not provide a step difference for the encapsulation layer on the side of the first dam facing the display area. Only the shorter organic layer provides the step difference for the encapsulation layer. The thickness of this organic layer is 2μm-7μm, thus reducing the step difference in the encapsulation layer. Furthermore, the boundary of this organic layer is easier to control, preventing it from crossing the second dam during the formation of the organic layer, thus ensuring encapsulation performance. Another display panel and display device provided in this application has only one organic layer in the encapsulation layer, which terminates between the first and second dams. Since the touch traces are located on the side of the first dam facing the display area, the organic layer does not form a step difference in the encapsulation layer below the touch traces. Additionally, because grooves are provided on the inorganic layer, the more fluid organic layer can flow into the grooves, preventing it from crossing the second dam during the formation of the organic layer, thus ensuring encapsulation performance. Because the step difference is reduced, the probability of touch trace breakage is lowered; at the same time, because the step difference is reduced, it is less likely for material residue to form at the step, thus reducing the probability of short circuits in the touch traces on both sides of the step. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of the prior art; Figure 2 This is a schematic diagram of another embodiment of a display panel in the prior art; Figure 3 This is a schematic diagram of the structure of the display panel according to the first embodiment of this application; Figure 4 This is a schematic diagram of the structure of the display panel according to a second embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the third embodiment of the display panel of this application; Figure 6 This is a schematic diagram of the fourth embodiment of the display panel of this application; Figure 7 This is a structural schematic diagram of the fifth embodiment of the display panel of this application; Figure 8 This is a schematic diagram of the sixth embodiment of the display panel of this application; Figure 9 This is a structural schematic diagram of the seventh embodiment of the display panel of this application. Detailed Implementation

[0011] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0012] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a prior art display panel embodiment. Figure 2 This is a schematic diagram of another embodiment of a display panel in the prior art. The display panel includes a display area AA and a non-display area AB. The display panel includes a substrate 1', a light-emitting layer 2', an encapsulation layer 4', and a touch layer 5' stacked sequentially. The touch layer 5' includes a touch substrate layer 51' and touch traces 52'. The light-emitting layer 2' has a first dam 31' and a second dam 32' stacked sequentially along the direction from the display area AA to the non-display area AB on the side near the non-display area AB. The encapsulation layer 4', pointing from the encapsulation layer 4' to the touch substrate layer 51', includes a first inorganic layer 41', an organic layer 42', and a second inorganic layer 43' stacked sequentially. The orthographic projection of the organic layer 42' onto the first inorganic layer 41' is located within the first inorganic layer 41', and the boundary of the organic layer 42' away from the display area AA is located on the side of the first dam 31' facing the display area AA. As can be seen from the figure, a step is formed above the touch substrate layer 51' in the non-display area AB. This is because the thickness of the organic layer 42' is generally 8μm-14μm, resulting in a relatively large step.

[0013] like Figure 1 The prior art shown has touch traces 52' on both sides of the step difference. Due to the large step difference, the touch traces 52' are prone to breakage during fabrication. At the same time, material deposits are easily formed at the step difference, which can easily lead to short circuits between the traces on both sides of the step.

[0014] like Figure 2 In order to avoid the problem of broken lines caused by step differences, the prior art 2 shown places all touch lines 52' directly above the organic layer 42'. The above wiring method results in low space utilization of the non-display area AB, and requires a wider non-display area AB to fully accommodate all the lines, resulting in an excessively wide bezel of the display device, which makes it difficult to meet the requirements of a narrow bezel.

[0015] Therefore, this application provides a method that improves touch performance while satisfying the requirement of narrow bezels.

[0016] See Figure 3 , Figure 3This is a schematic diagram of a first embodiment of the display panel of this application. The display panel includes: a display area AA and a non-display area AA located around the display area. The display panel also includes: The substrate 1 and the light-emitting layer 2, the first dam 31 and the second dam 32 are disposed on one side of the substrate 1 and are arranged sequentially along the direction from the display area AA to the non-display area AB. Encapsulation layer 4 covers light-emitting layer 2, first dam 31 and second dam 32; The touch layer 5 is disposed on the side of the encapsulation layer 4 away from the substrate 1; The encapsulation layer 4 includes a first inorganic layer 41, a first organic layer 42, a second inorganic layer 43, and a second organic layer 44, which are sequentially stacked along the direction away from the substrate 1. The orthographic projection of the boundary of the first organic layer 42 on the substrate 1 is located between the orthographic projections of the first dam 31 and the second dam 32 on the substrate 1. The orthographic projection of the boundary of the second organic layer 44 on the substrate 1 is located on the side of the orthographic projection of the boundary of the first organic layer 42 on the substrate 1 that is closer to the display area AA. The thickness of the second organic layer 44 is 2μm-7μm, and the thickness of the first organic layer 42 is 2μm-14μm.

[0017] Specifically, the boundary of the second organic layer 44 terminates at the side of the first dam 31 facing the display area AA. The first dam 31 and the second dam 32 are disposed around the light-emitting layer 2. The encapsulation layer 4 covers the light-emitting layer 2 and the first dam 31 and the second dam 32. A touch substrate layer 51 is stacked on top of the encapsulation layer 4. The touch substrate layer 51 can be made of inorganic materials, and multiple parallel touch traces 52 are included on top of the touch substrate layer 51. The encapsulation layer 4 includes multiple inorganic layers and multiple organic layers stacked together. The inorganic layers have excellent barrier properties against water vapor and oxygen, making it difficult for external water vapor and oxygen to cross the dam and enter the display panel in a high-humidity and high-heat environment. Specifically, the materials of the first inorganic layer 41 and the second inorganic layer 43 can be transparent oxides, fluorides, and silicon nitrides. The materials of the first inorganic layer 41 and the second inorganic layer 43 can be the same or different. The organic layer can be a transparent polymer, such as polyimide. The materials of the first organic layer 42 and the second organic layer 44 can be the same or different. Of course, in other embodiments, more than two dams may be provided, while the first organic layer 42 still terminates between the second dam 32 and the first dam 31.

[0018] This application divides the organic layer in the encapsulation layer 4 into at least two layers. The longer first organic layer 42 terminates between the first dam 31 and the second dam 32. Since the first organic layer 42 extends beyond the first dam 31, it does not provide a step for the encapsulation layer 4 on the side of the first dam 31 facing the display area AA. Only the second organic layer 44 provides the step for the encapsulation layer 4. The inventors have found that when the thickness of the second organic layer 44 is limited to 2μm-7μm, the step for the encapsulation layer 4 can be reduced. Moreover, at this thickness, the boundary of the second organic layer 44 is easier to control, ensuring that the second organic layer 44 is shorter than the first organic layer 42, avoiding crossing the second dam 32 during the formation of the second organic layer 44, and ensuring encapsulation performance. Therefore, by reducing the step difference, the probability of touch trace 52 breaking is reduced. At the same time, it is not easy for material deposits to form at the step difference, which reduces the probability of short circuits in the touch traces on both sides of the step. In addition, since high-quality touch traces can be formed in the space on the side of the first dam 31 near the display area AA, the utilization rate of the non-display area AB is improved, and a narrow bezel of the display panel can be achieved.

[0019] Optionally, see Figure 4 , Figure 4 This is a schematic diagram of the structure of the display panel according to the second embodiment of this application. In this embodiment, the second organic layer 44 terminates between the first dam 31 and the second dam 32. Since both the second organic layer 44 and the first organic layer 42 extend beyond the first dam 31, there is no step difference in the encapsulation layer 4 below the touch layer 5, which reduces the probability of the touch trace 52 breaking and makes it less likely for short circuits to occur between adjacent touch traces 52.

[0020] Alternatively, continue reading Figure 3 The orthographic projection of the boundary of the second organic layer 44 onto the substrate 1 is located on the side of the orthographic projection of the first dam 31 onto the substrate 1 closer to the display area AA. Optionally, continue reading... Figure 3 The touch layer 5 includes a touch substrate layer 51 and touch traces 52 located on one side of the touch substrate layer 51; at least a portion of the orthographic projection of the touch traces 52 on the substrate 1 lies within the orthographic projection of the second organic layer 44 on the substrate 1. In this embodiment, the second organic layer 44 terminates at the side of the first dam 31 near the display area AA. Since the thickness of the second organic layer 44 is limited to 2μm-7μm, the step difference of the encapsulation layer 4 below the touch layer 5 is also controlled to be 2μm-7μm. The space on the side of the first dam 31 near the display area AA can be fully utilized for the arrangement of touch traces. Due to the small step difference, the probability of touch trace breakage is reduced; at the same time, it is not easy for material deposition residue to form at the step difference, reducing the probability of short circuit of touch traces on both sides of the step.

[0021] Optionally, continue reading Figure 5 , Figure 5This is a schematic diagram of the structure of the third embodiment of the display panel of this application. A first groove 45 is provided on the first inorganic layer 41 between the first dam 31 and the second dam 32. The first organic layer 42 extends to the first groove 45 and fills at least part of the first groove 45. The first groove 45 can be formed on the first inorganic layer 41 by etching or other means after the first inorganic layer 41 is formed. Since organic materials have a certain fluidity, by providing the first groove 45 on the first inorganic layer 41 below the first organic layer 42, when the first organic layer 42 flows into the first groove 45 first, it is allowed to flow into the first groove 45 first, reducing the flow rate and the probability of the first organic layer 42 crossing the second dam 32. This avoids the problem of the first organic layer 42 communicating with the outside world, causing external water vapor, oxygen, etc. to enter the interior of the display panel through the first organic layer 42, thereby ensuring the encapsulation effect.

[0022] Furthermore, the thickness of the first organic layer 42 is 4μm-14μm. The inventors discovered through research that when the thickness of the first organic layer 42 reaches this range, the encapsulation performance of the encapsulation layer 4 can be further guaranteed.

[0023] See Figure 6 , Figure 6 This is a schematic diagram of a fourth embodiment of the display panel of this application. The display panel includes: a display area AA and a non-display area AA surrounding the display area. The display panel also includes: The substrate 1 and the light-emitting layer (not shown), the first dam 31 and the second dam 32 are disposed on one side of the substrate 1 and arranged sequentially along the direction from the display area AA to the non-display area AB. Encapsulation layer 4 covers the light-emitting layer, the first dam 31, and the second dam 32; The touch layer 5 is disposed on the side of the encapsulation layer 4 away from the substrate 1; The encapsulation layer 4 includes a first inorganic layer 41, a first organic layer 42, a second inorganic layer 43, and a second organic layer 44, which are sequentially stacked along the direction away from the substrate 1. The edges of the encapsulation layer 4 are provided with a first dam 31 and a second dam 32 in sequence along the direction from the display area AA to the non-display area AB. The orthographic projection of the boundary of the second organic layer 44 on the substrate 1 is located between the orthographic projections of the first dam 31 and the second dam 32 on the substrate 1. The orthographic projection of the boundary of the first organic layer 42 on the substrate 1 is located on the side of the orthographic projection of the boundary of the second organic layer 44 on the substrate 1 that is closer to the display area AA. The thickness of the first organic layer 42 is 2μm-7μm, and the thickness of the second organic layer 44 is 2μm-14μm.

[0024] This application divides the organic layer in the encapsulation layer 4 into at least two layers. The longer second organic layer 44 terminates between the first dam 31 and the second dam 32. Since the second organic layer 44 extends beyond the first dam 31, it does not provide a step for the encapsulation layer 4 on the side of the first dam 31 facing the display area AA. The first organic layer 42 terminates on the side of the first dam 31 facing the display area AA, so only the first organic layer 42 provides the step for the encapsulation layer 4. The inventors have found that when the thickness of the first organic layer 42 is limited to 2μm-7μm, the step for the encapsulation layer 4 can be reduced. Moreover, at this thickness, the boundary of the first organic layer 42 is easier to control, ensuring that the first organic layer 42 is shorter than the second organic layer 44, avoiding crossing the second dam 32 during the formation of the first organic layer 42, and ensuring encapsulation performance. Therefore, by reducing the step difference, the probability of touch trace 52 breaking is reduced; at the same time, by reducing the step difference, it is not easy for material deposits to form at the step, reducing the probability of short circuits in the touch traces on both sides of the step; since the space on the side of the first dam 31 near the display area AA can form high-quality touch traces, the space utilization rate is improved, and a narrow bezel can be achieved.

[0025] Optionally, see Figure 7 , Figure 7 This is a schematic diagram of the structure of the fifth embodiment of the display panel of this application. In this embodiment, since the second organic layer 44 terminates between the first dam 31 and the second dam 32, and the first organic layer 42 terminates between the first dam 31, there is no step difference in the encapsulation layer 4 below the touch layer 5, which reduces the probability of the touch trace 52 breaking and makes it less likely for short circuits to occur between adjacent touch traces.

[0026] Alternatively, continue reading Figure 6 The orthographic projection of the boundary of the first organic layer 42 onto the substrate 1 is located on the side of the orthographic projection of the first dam 31 onto the substrate 1 closer to the display area AA. Optionally, continue to refer to Figure 3 The touch layer 5 includes a touch substrate layer 51 and touch traces 52. At least a portion of the touch traces 52 are projected onto the substrate 1 within the projection of the first organic layer 42 onto the substrate 1. In this embodiment, the first organic layer 42 terminates at the side of the first dam 31 near the display area AA. Since the thickness of the first organic layer 42 is limited to 2μm-7μm, the step difference of the encapsulation layer 4 below the touch layer 5 is also controlled to be 2μm-7μm. The space on the side of the first dam 31 near the display area AA can be fully utilized for the arrangement of the touch traces 52. Due to the small step difference, the probability of touch trace breakage is reduced. At the same time, it is not easy for material deposits to form at the step difference, reducing the probability of short circuits in the touch traces on both sides of the step.

[0027] Optionally, a first groove 45 is provided on the second inorganic layer 43 between the first dam 31 and the second dam 32, and the second organic layer 44 extends to the first groove 45 and fills at least part of the first groove 45. The first groove 45 can be formed on the second inorganic layer 43 by etching or other means after the second inorganic layer 43 is formed. Therefore, by providing the first groove 45 on the second inorganic layer 43 below the first organic layer 42, when the first organic layer 42 flows into the space between the first dam 31 and the second dam 32, it first flows into the first groove 45, reducing the flow rate and the probability of the first organic layer 42 crossing the second dam 32. This avoids the problem of the first organic layer 42 communicating with the outside world, which would allow external water vapor, oxygen, etc., to enter the display panel through the first organic layer 42, thus ensuring the encapsulation effect.

[0028] Further, see Figure 8 , Figure 8 This is a schematic diagram of the sixth embodiment of the display panel of this application. The first groove 45 penetrates the second inorganic layer 43 along the depth direction and extends into the first inorganic layer 41. In this embodiment, the first groove 45 is relatively deep. When the second organic layer 44 flows between the first dam 31 and the second dam 32, it first flows into the first groove 45. Due to its greater depth, the flow rate is further reduced, decreasing the probability that the second organic layer 44 will cross the second dam 32, thus further ensuring the encapsulation effect. Of course, in other embodiments, the first groove 45 may only penetrate a portion of the second inorganic layer 43 along the depth direction.

[0029] It should be noted that the shape of the first groove 45 is not limited. In order to increase the effect of the first groove 45 in reducing the flow rate, multiple first grooves 45 can be set on the path through which the second organic layer 44 or the first organic layer 42 flows.

[0030] Furthermore, the thickness of the second organic layer 44 is 4μm-14μm. The inventors discovered through research that when the thickness of the second organic layer 44 reaches this range, the encapsulation performance of the encapsulation layer 4 can be further guaranteed.

[0031] See Figure 9 , Figure 9 This is a structural schematic diagram of a seventh embodiment of the display panel of this application. The display panel includes a display area AA and a non-display area AB located around the display area AA. The display panel also includes: The substrate 1 and the light-emitting layer (not shown), the first dam 31 and the second dam 32 are disposed on one side of the substrate 1 and arranged sequentially along the direction from the display area AA to the non-display area AB. Encapsulation layer 4 covers the light-emitting layer, the first dam 31 and the second dam 32. Encapsulation layer 4 includes a first inorganic layer 41, an organic layer 47 and a second inorganic layer 43 arranged sequentially in the direction away from the substrate 1. The thickness of the organic layer 47 is 8μm-14μm. The touch layer 5 is disposed on the side of the encapsulation layer 4 away from the substrate 1; The first inorganic layer 41 has a groove 46 formed between the first dam 31 and the second dam 32.

[0032] In this application, the encapsulation layer 4 contains only one organic layer 47, which terminates between the first dam 31 and the second dam 32. Therefore, the organic layer 47 does not provide a step for the encapsulation layer 4. This allows the energy focused by the touch traces to be more even and the thickness of the touch traces to be more consistent when the touch layer 5 is subsequently formed on the encapsulation layer 4. This reduces the probability of the touch traces at lower positions being too thin and causing breakage. Since touch traces can also be formed in the lower position on the side of the first dam 31 near the display area AA, the space utilization is improved, enabling a narrow bezel. At the same time, since there is no step, it is not easy for material deposits to form on the encapsulation layer 4, reducing the probability of short circuits between adjacent touch traces. In addition, to ensure the encapsulation performance of the encapsulation layer 4, the thickness of the organic layer 47 needs to be controlled between 8μm and 14μm. Due to its thickness, the boundary of the organic layer 47 near the non-display area is difficult to control. By setting a groove 46 on the first inorganic layer 41, the organic layer 47 flows into the groove 46 first when it flows between the first dam 31 and the second dam 32, which reduces the flow rate of the organic layer 47 and reduces the probability of the organic layer 47 crossing the second dam 32. This avoids the organic layer 47 from communicating with the outside world, which would cause external water vapor, oxygen, etc. to enter the display panel through the organic layer 47, thereby further ensuring the encapsulation effect.

[0033] This application also provides a display device, including the display panel in any of the foregoing embodiments. The display device may be a mobile phone, tablet computer, wearable device, etc.

[0034] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A display panel, comprising a display area and a non-display area surrounding the display area, characterized in that, include: The substrate and a light-emitting layer, a first dam and a second dam disposed on one side of the substrate, arranged sequentially along the direction from the display area to the non-display area; An encapsulation layer covers the light-emitting layer, the first dam, and the second dam; A touch layer is disposed on the side of the encapsulation layer away from the substrate; The encapsulation layer includes a first inorganic layer, a first organic layer, a second inorganic layer, and a second organic layer, which are sequentially stacked along the direction away from the substrate. The orthographic projection of the boundary of the first organic layer on the substrate is located between the orthographic projections of the first dam and the second dam on the substrate, and the orthographic projection of the boundary of the second organic layer on the substrate is located on the side of the orthographic projection of the boundary of the first organic layer on the substrate closer to the display area; and the thickness of the second organic layer is 2μm-7μm, and the thickness of the first organic layer is 2μm-14μm. The orthographic projection of the boundary of the second organic layer on the substrate is located on the side of the orthographic projection of the first dam on the substrate closer to the display area; The first inorganic layer has a first groove at a position between the first dam and the second dam, and the first organic layer extends into the first groove and fills at least part of the first groove.

2. The display panel according to claim 1, characterized in that, The touch layer includes a touch substrate layer and touch traces located on one side of the touch substrate layer; at least a portion of the touch traces are projected onto the substrate within the projection of the second organic layer onto the substrate.

3. The display panel according to claim 1, characterized in that, The thickness of the first organic layer is 4μm-14μm.

4. A display panel, comprising a display area and a non-display area surrounding the display area, characterized in that, include: The substrate and a light-emitting layer, a first dam and a second dam disposed on one side of the substrate, arranged sequentially along the direction from the display area to the non-display area; An encapsulation layer covers the light-emitting layer, the first dam, and the second dam; A touch layer is disposed on the side of the encapsulation layer away from the substrate; The encapsulation layer includes a first inorganic layer, a first organic layer, a second inorganic layer, and a second organic layer, which are sequentially stacked along the direction away from the substrate. The orthographic projection of the boundary of the second organic layer on the substrate is located between the orthographic projections of the first dam and the second dam on the substrate, and the orthographic projection of the boundary of the first organic layer on the substrate is located on the side of the orthographic projection of the boundary of the second organic layer on the substrate closer to the display area; and the thickness of the first organic layer is 2μm-7μm, and the thickness of the second organic layer is 2μm-14μm. The orthographic projection of the boundary of the first organic layer onto the substrate is located on the side of the orthographic projection of the first dam onto the substrate closer to the display area; The second inorganic layer has a first groove at the position between the first dam and the second dam, and the second organic layer extends into the first groove and fills at least part of the first groove.

5. The display panel according to claim 4, characterized in that, The first groove penetrates the second inorganic layer along the depth direction and extends into the first inorganic layer.

6. The display panel according to claim 4, characterized in that, The touch layer includes a touch substrate layer and touch traces located on one side of the touch substrate layer; at least a portion of the touch traces are projected onto the substrate within the projection of the first organic layer onto the substrate.

7. The display panel according to claim 4, characterized in that, The thickness of the second organic layer is 4μm-14μm.

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