Display panel and display device

Abstract

The invention discloses a display panel and a display device.The display panel comprises partition parts, a path extension platform, a light-emitting common layer and a packaging layer, and at least two partition parts are arranged in a non-display area at intervals in the direction from a display area to the non-display area and extend along the edge of the display area; the path extension platform is additionally arranged between two adjacent partition parts, so that the distance between the adjacent partition parts is prolonged by using the path extension platform, the packaging layer can continuously form a film at the partition parts and the path extension platform, the risk that the packaging layer generates cracks is reduced, the packaging performance of the display panel is improved, and the yield of the display panel is improved. Therefore, the reliability of the display panel can be improved.

Description

Technical Field

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

[0002] With the development of display technology, in order to ensure the front-facing camera effect of mobile phones, holes are usually made in the display panel. The encapsulation reliability of the hole area is affected by the side exposure of the organic vapor-deposited film layer. Under high temperature and high humidity, water vapor and oxygen permeation affect the reliability of the display screen.

[0003] To mitigate the impact of moisture penetration, several metal partition structures are typically placed between the perforation area and the display area to separate the organic materials and the cathode. Because the inorganic encapsulation layer is relatively thin at the metal partition structures, it is prone to cracking. Moisture can then penetrate the display panel through these cracks, corroding the circuitry and causing display defects, thus reducing the reliability of the display panel.

[0004] Therefore, it is necessary to provide a display panel and display device to improve this deficiency. Summary of the Invention

[0005] This application provides a display panel and a display device that can improve the reliability of the display panel.

[0006] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, having a display area and a non-display area, the display panel comprising: At least two partition portions are spaced apart in the non-display area along the direction from the display area to the non-display area, and extend along the edge of the display area; A path extension platform is disposed between two adjacent partition sections; A light-emitting common layer is partially disposed on the partition and the path extension platform. The light-emitting common layer is interrupted at the partition and continuously disposed at the path extension platform. An encapsulation layer is partially disposed on the light-emitting common layer and is continuously disposed at the partition portion and the path extension platform.

[0007] Optionally, at least two of the partitions include a first partition and a second partition, and the path extension platform is disposed between the first partition and the second partition; The first partition portion has a first undercut opening on the side near the path extension platform. The encapsulation layer includes an organic encapsulation layer, which includes an overflow portion located between the first partition portion and the path extension platform, and fills the first undercut opening.

[0008] Optionally, the encapsulation layer includes a first inorganic encapsulation layer, and the first inorganic encapsulation layer is partially disposed on the overflow portion; The ratio of the thickness of the portion of the first inorganic encapsulation layer located on the overflow portion to the thickness of the portion of the first inorganic encapsulation layer located in the display area is greater than 0.5 and less than or equal to 1.

[0009] Optionally, the display panel includes a substrate and a first barrier wall, the partition portion and the path extension platform are disposed on the substrate, a groove is provided between the path extension platform and the partition portion, the second partition portion is located on the side of the first partition portion away from the display area, the first barrier wall is disposed on the first partition portion, and a groove is provided between the path extension platform and the partition portion; The vertical distance between the top of the path extension platform and the bottom of the groove is less than the vertical distance between the top of the first retaining wall and the bottom of the groove.

[0010] Optionally, the vertical distance between the top of the path extension platform and the bottom of the groove is greater than or equal to half the vertical distance between the top of the partition and the bottom of the groove.

[0011] Optionally, the vertical distance between the top of the path extension platform and the bottom of the groove is less than the vertical distance between the top of the partition and the bottom of the groove.

[0012] Optionally, the groove has a depth of 1 micrometer or more in the thickness direction of the display panel.

[0013] Optionally, the encapsulation layer includes an organic encapsulation layer; Wherein, in the direction from the display area to the non-display area, the distance between the path extension platform and the adjacent partition is greater than or equal to the maximum thickness of the portion of the organic encapsulation layer located in the display area.

[0014] Optionally, the width of the path extension platform is greater than or equal to the width of the partition.

[0015] Optionally, the display panel includes two path extension platforms, a plurality of partitions, and a second barrier wall. The two path extension platforms include a first path extension platform and a second path extension platform. The plurality of partitions include a first partition and a second partition. The second barrier wall is located on the side of the second partition away from the first partition. The first path extension platform is located between the first partition and the second partition, and the second path extension platform is located between the second partition and the second retaining wall.

[0016] Optionally, the path extension platform includes at least one metal pad and an organic pad disposed on the metal pad.

[0017] Optionally, the partition portion includes a first partition sub-part, a second partition sub-part, and a third partition sub-part stacked in sequence, wherein the side of the first partition sub-part is recessed inward relative to the side of the second partition sub-part to form a first undercut opening; The at least one metal pad layer includes a first metal pad layer, which is disposed in the same layer as the second partition sub-part and is made of the same material. The organic pad layer is disposed in the same layer as the third partition sub-part and is made of the same material.

[0018] Optionally, the display panel includes: At least one source / drain layer; and At least one planarization layer is disposed on the source-drain layer; The first metal pad layer is disposed in the same layer as the source and drain layers and is made of the same material; the organic pad layer is disposed in the same layer as the planarization layer and is made of the same material.

[0019] Optionally, the path extension platform includes at least two metal pad layers, the at least two metal pad layers including a first metal pad layer and a second metal pad layer, the first metal pad layer being disposed on the second metal pad layer; The display panel includes at least one gate layer, and the second metal pad layer is disposed in the same layer as the gate layer and is made of the same material.

[0020] Optionally, the encapsulation layer includes: Second inorganic encapsulation layer; An organic encapsulation layer is disposed on the second inorganic encapsulation layer; and A first inorganic encapsulation layer is disposed on the organic encapsulation layer; The organic encapsulation layer is disconnected at the partition, and the first inorganic encapsulation layer and the second inorganic encapsulation layer are continuously arranged at the path extension platform.

[0021] Optionally, the display panel includes a plurality of light-emitting common layers, wherein the plurality of light-emitting common layers include an organic common layer and a cathode layer disposed on the organic common layer.

[0022] According to a second aspect of this application, a display device is provided, including a display panel as described above.

[0023] In the display panel of this application embodiment, by adding a path extension platform between two adjacent partitions, the distance between adjacent partitions is extended by using the path extension platform, so that the encapsulation layer can be continuously formed at the partition and the path extension platform, reducing the risk of cracking of the encapsulation layer, thereby improving the encapsulation performance of the display panel and thus improving the reliability of the display panel.

[0024] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0026] Figure 1 A top view of a display panel provided for an embodiment of this application; Figure 2 The display panel provided for embodiments of this application is along Figure 1 The cross-sectional view along the A-A' direction shown; Figure 3 A schematic diagram of the partition and path extension platform in the display panel provided for embodiments of this application; Figure 4 A schematic diagram of the film structure of the display panel located in the display area, provided for an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a display device according to an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0028] Embodiments of this application provide a display panel having a display area and a non-display area. The display panel includes a partition portion, a path extension platform, a light-emitting common layer, and an encapsulation layer. At least two partition portions are arranged at intervals in the non-display area along the direction from the display area to the non-display area and extend along the edge of the display area. The path extension platform is disposed between two adjacent partition portions. The light-emitting common layer is partially disposed on the partition portion and the path extension platform. The light-emitting common layer is interrupted at the partition portion and continuously disposed at the path extension platform. The encapsulation layer is partially disposed on the light-emitting common layer and continuously disposed at the partition portion and the path extension platform.

[0029] In the embodiments of this application, by adding a path extension platform between two adjacent partitions, the distance between adjacent partitions is extended by using the path extension platform, so that the encapsulation layer can be continuously formed at the partition and the path extension platform, reducing the risk of cracks in the encapsulation layer, thereby improving the encapsulation performance of the display panel and thus improving the reliability of the display panel.

[0030] like Figure 1 As shown, Figure 1 The above view is a top view of a display panel provided in an embodiment of this application. The display panel 100 has a display area AA and a non-display area NA. The display area AA is the area used to display images, and the non-display area NA is the area used to place peripheral circuits or to transmit light.

[0031] In some embodiments, such as Figure 1 As shown, the non-display area NA includes a first non-display area NA1 and a second non-display area NA2. The display area AA is located around the first non-display area NA1, and the second non-display area NA is located around the display area AA.

[0032] In some embodiments, such as Figure 1 As shown, the first non-display area NA1 may include an aperture sub-area NA11 and a transition sub-area NA12. The transition sub-area NA12 is located between the aperture sub-area NA11 and the display area AA, separating the display area AA and the aperture sub-area NA11. The aperture sub-area NA11 has an aperture that can completely penetrate the display panel in the thickness direction or penetrate part of the film layer of the display panel. The aperture can provide a channel for optical components installed below the aperture sub-area NA11 to collect optical signals.

[0033] In some embodiments, the shape of the aperture area NA11 can be circular, elliptical, teardrop-shaped, or other irregular shapes, and the transition sub-area NA12 at least partially surrounds the aperture area NA11 to separate the aperture area NA11 from the display area AA.

[0034] In some embodiments, the second non-display area NA2 is an area for placing peripheral circuits and peripheral traces. For example, the display panel includes peripheral circuits and peripheral traces, which can be placed in the second non-display area NA2. The peripheral circuits may include, but are not limited to, gate drive circuits, electrostatic discharge protection circuits, multiplexing circuits, etc.

[0035] Combination Figure 1 and Figure 2 As shown, Figure 2 The display panel provided for embodiments of this application is along Figure 1 The cross-sectional view along the A-A' direction shown shows that the display panel 100 includes at least two partitions 1. The at least two partitions 1 are spaced apart in the non-display area NA along the direction from the display area AA to the non-display area NA, and extend along the edge of the display area AA.

[0036] like Figure 2 As shown, the display panel 100 also includes a path extension platform 2, which is disposed between two adjacent partitions 1 and spaced apart from the partitions 1. The path extension platform 2 extends along the edge of the display area AA, and the shape of the path extension platform 2 can be the same as the shape of the partition 1.

[0037] like Figure 2 As shown, the display panel 100 also includes a light-emitting common layer 3 and an encapsulation layer 4. The light-emitting common layer 3 is partially disposed on the partition 1 and the path extension platform 2. The light-emitting common layer 3 is disconnected at the partition 1 and continuously disposed at the path extension platform 2. The encapsulation layer 4 is partially disposed on the light-emitting common layer 3 and is continuously disposed on the partition 1 and the path extension platform 2.

[0038] In this embodiment, by adding a path extension platform 2 between two adjacent partitions 1, the distance between adjacent partitions 1 is extended by the path extension platform 2, so that the encapsulation layer 4 can be continuously formed at the partitions 1 and the path extension platform 2, reducing the risk of cracks in the encapsulation layer 4, thereby improving the encapsulation performance of the display panel and thus improving the reliability of the display panel.

[0039] In some embodiments, the partition 1 and the path extension platform 2 are disposed in the transition sub-region NA12. Both the partition 1 and the path extension platform 2 are annular to completely surround the aperture sub-region NA11. The partition 1 can isolate the light-emitting common layer 3 on the side of the transition sub-region NA12 near the aperture sub-region NA11 from the light-emitting common layer of the display area AA, preventing moisture from entering the display area through the aperture of the aperture sub-region NA11 and the light-emitting common layer 3, thereby improving the encapsulation performance of the first non-display area NA1.

[0040] In some embodiments, the partition 1 and the path extension platform 2 may be disposed in the second non-display area NA2. The partition 1 and the path extension platform 2 extend along the edge of the display area AA to completely surround the display area AA, thereby isolating the light-emitting common layer 3 at the edge of the second non-display area NA2 from the light-emitting common layer 3 of the display area AA, preventing moisture from entering the display area from the second non-display area NA2 through the light-emitting common layer 3, thereby improving the encapsulation performance of the second non-display area NA2.

[0041] In some embodiments, the first non-display area NA1 and the second non-display area NA2 may be provided with both the partition 1 and the path extension platform 2 to improve the encapsulation performance of the first non-display area NA1 and the second non-display area NA2, thereby improving the reliability of the display panel.

[0042] In some embodiments, the path extension platform 2 includes at least one metal pad and an organic pad disposed on the metal pad. The metal pad can be disposed in the same layer as the existing metal film layer of the display panel, or an additional metal film layer can be added to the existing film structure of the display panel to prepare the metal pad. The organic pad can be disposed in the same layer as the existing organic insulating layer of the display panel, or an additional organic insulating layer can be added to the existing film structure of the display panel to prepare the organic pad. By stacking the metal pad and the organic pad to form the path extension platform 2, the distance between two adjacent partition portions 1 can be extended, and the encapsulation layer 4 can be continuously formed at the partition portion 1 and the path extension platform 2, reducing the risk of cracking in the encapsulation layer 4, thereby improving the encapsulation performance of the display panel, extending the failure time of the display panel during reliability testing, and thus improving the reliability of the display panel.

[0043] In some embodiments, such as Figure 3 As shown, Figure 3 The schematic diagram of the partition portion and path extension platform in the display panel provided in the embodiment of this application shows that the partition portion 1 includes a first partition sub-part 111, a second partition sub-part 112 and a third partition sub-part 113 stacked in sequence. The side of the first partition sub-part 111 is inwardly contracted relative to the side of the second partition sub-part 112 to form a first bottom cut opening UC1. The third partition sub-part 113 is disposed on the second partition sub-part 112.

[0044] In some embodiments, such as Figure 3As shown, the partition portion 1 also includes a fourth partition sub-part 114, on which the first partition sub-part 111, the second partition sub-part 112, and the third partition sub-part 113 are stacked sequentially. The fourth partition sub-part 114 and the second partition sub-part 112 are both made of metal, while the first partition sub-part 111 and the third partition sub-part 113 are both made of organic materials. The etching selectivity of the organic materials is greater than that of the metal materials, so as to facilitate the formation of a first undercut opening UC1 on the side of the partition portion 1.

[0045] In some embodiments, such as Figure 3 As shown, the path extension platform 2 includes a first metal pad 201, and an organic pad 202 disposed on the first metal pad 201. The first metal pad 201 and the second partition sub-part 112 are disposed in the same layer and are made of the same material. In the actual manufacturing process, the first metal pad 201 is formed simultaneously using the film structure and manufacturing process of the second partition sub-part 112, which can avoid increasing the manufacturing process of the film structure of the display panel.

[0046] In some embodiments, such as Figure 3 As shown, the organic pad layer 202 is disposed in the same layer as the third partition sub-part 113 and is made of the same material. In the actual manufacturing process, the organic pad layer 202 is formed simultaneously using the film structure and manufacturing process of the third partition sub-part 113, which can avoid increasing the manufacturing process of the film structure of the display panel.

[0047] In some embodiments, the display panel includes at least one source / drain layer and at least one planarization layer. The planarization layer is disposed on the corresponding source / drain layer. A first metal pad layer 201 is disposed in the same layer as the source / drain layer and is made of the same material. An organic pad layer is disposed in the same layer as the planarization layer and is made of the same material. Thus, the partition portion 1 and the path extension platform 2 can be simultaneously fabricated using the existing film layer structure and process of the display panel. This improves the reliability of the display panel without increasing the processing technology of the film layer structure.

[0048] In some embodiments, combined with Figure 3 and Figure 4 As shown, Figure 4 This is a schematic diagram of the film structure of the display panel located in the display area, provided for an embodiment of this application. The display panel includes a substrate 10, an active layer 101, a first gate insulating layer 102, a first gate layer 103, a second gate insulating layer 104, a second gate layer 105, an interlayer dielectric layer 106, a first source-drain layer 107, a first planarization layer 108, a second source-drain layer 109, a second planarization layer 110, an anode layer 301, a pixel definition layer 302, a support layer 303, a light-emitting common layer 3, and an encapsulation layer 4, which are stacked sequentially.

[0049] In some embodiments, the substrate 10 may be a single-layer structure made of organic or inorganic materials, or a multi-layer composite structure made of organic and inorganic materials stacked together.

[0050] In some embodiments, combined with Figure 2 and Figure 3 As shown, the substrate 10 includes a first organic substrate 10a, a first inorganic substrate 10b, a second organic substrate 10c, and a second inorganic substrate 10d. The materials of the first organic substrate 10a and the second organic substrate 10c include, but are not limited to, polyimide, and the materials of the first inorganic substrate 10b and the second inorganic substrate 10d include, but are not limited to, silicon nitride, silicon oxide, or silicon oxynitride.

[0051] In some embodiments, such as Figure 4 As shown, the display panel includes multiple light-emitting common layers 3, each including an organic common layer 31 and a cathode layer 32 disposed on the organic common layer 31. The organic common layer 31 may include, but is not limited to, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer. The display panel also includes an organic light-emitting material layer, which is disposed between the hole transport layer and the electron transport layer and located within the pixel opening defined by the pixel definition layer.

[0052] In some embodiments, such as Figure 4 As shown, the encapsulation layer 4 includes a second inorganic encapsulation layer 42, an organic encapsulation layer 43 disposed on the second inorganic encapsulation layer 42, and a first inorganic encapsulation layer 41 disposed on the second inorganic encapsulation layer 42 and the organic encapsulation layer 43.

[0053] In some embodiments, combined with Figure 3 and Figure 4 As shown, the first partition sub-part 111 is disposed on the same layer as the first planarization layer 108 and is made of the same material. The first metal pad layer 201, the second partition sub-part 112 and the second source / drain layer 109 are disposed on the same layer and are made of the same material. The organic pad layer 202 and the third partition sub-part 113 are disposed on the same layer as the second planarization layer 110 and are made of the same material. By utilizing the existing film layer manufacturing process of the display panel, the partition part 1 and the path extension platform 2 can be fabricated simultaneously. Without increasing the manufacturing process of the film layer structure of the display panel, the reliability of the display panel can be improved.

[0054] In some embodiments, the first metal pad 201 is disposed in the same layer as the first source-drain layer 107 and is made of the same material, and the organic pad 202 may be disposed in the same layer as the first planarization layer 108 or the second planarization layer 110 and is made of the same material.

[0055] In some embodiments, the path extension platform 2 includes at least two metal pads, including a first metal pad 201 and a second metal pad 203. The first metal pad 201 is disposed on the second metal pad 203. The display panel includes at least one gate layer. The second metal pad 203 is disposed on the same layer as the gate layer and is made of the same material.

[0056] In some embodiments, the path extension platform 2 includes a first metal pad 201 and a second metal pad 203. The first metal pad 201 is disposed in the same layer as the second source-drain layer 109 and is made of the same material. The second metal pad 203 is disposed in the same layer as the first gate layer 103 or the second gate 105 and is made of the same material.

[0057] In some embodiments, combined with Figure 3 and Figure 4 As shown, the path extension platform 2 includes three metal pads: a first metal pad 201, a second metal pad 203, and a third metal pad 204. The first metal pad 201 is co-layered with the second source / drain layer 109 and is made of the same material. The second metal pad 203 is co-layered with the first gate layer 103 and is made of the same material. The third metal pad 204 is co-layered with the second gate layer 105 and is made of the same material. By utilizing the film structure of the first and second gate layers, and by adding the second metal pad 203 and the third metal pad 204 below the first metal pad 201, the height of the path extension platform 2 can be further increased to prevent the organic encapsulation material in the encapsulation layer from overflowing to the side of the path extension platform 2 away from the display area AA.

[0058] In some embodiments, combined with Figure 2 and Figure 3 As shown, at least two partitions 1 include a first partition 11 and a second partition 12. The second partition 12 is disposed on the side of the first partition 11 away from the display area AA. The path extension platform 2 is disposed between the first partition 11 and the second partition 12. The first partition 11 is provided with a first undercut opening UC1 on the side near the path extension platform 2. The light-emitting common layer 3 is disconnected at the first undercut opening UC1.

[0059] like Figure 2 and Figure 3 As shown, the first partition 11 has a first undercut opening UC1 on the side near the path extension platform 2. The organic encapsulation layer 43 is broken at the partition 1. The organic encapsulation layer 43 includes an organic encapsulation body 432 and an overflow portion 431. The body 432 is located on the side of the first partition 11 near the display area AA. The overflow portion 431 is located between the first partition 11 and the path extension platform 2 and fills the first undercut opening UC1. The first inorganic encapsulation layer 41 is partially formed on the overflow portion 431.

[0060] In this embodiment, the path extension platform 2 has a certain height, which can restrict the overflow portion 431 of the organic encapsulation layer 43 between the path extension platform 2 and the first partition portion 11. Since the organic encapsulation material has a certain fluidity, it can fill the first undercut opening UC1 on the side of the first partition portion 11, so that the first inorganic encapsulation layer 41 can be continuously filmed on the side of the first partition portion 11, improving the film quality of the first inorganic encapsulation layer 41, reducing the risk of cracking of the first inorganic encapsulation layer 41, thereby improving the reliability of the display panel.

[0061] In some embodiments, such as Figure 2 As shown, the thickness of the portion of the first inorganic encapsulation layer 41 located on the overflow portion 431 is equal to the thickness of the portion of the first inorganic encapsulation layer 41 located in the display area AA.

[0062] In some embodiments, the thickness of the portion of the first inorganic encapsulation layer 41 located on the overflow portion 431 is less than the thickness of the portion of the first inorganic encapsulation layer 41 located in the display area AA.

[0063] Furthermore, the ratio of the thickness of the portion of the first inorganic encapsulation layer 41 located on the overflow portion 431 to the thickness of the portion of the first inorganic encapsulation layer 41 located in the display area AA is greater than 0.5 and less than or equal to 1. For example, the ratio of the thickness of the portion of the first inorganic encapsulation layer 41 located on the overflow portion 431 to the thickness of the portion of the first inorganic encapsulation layer 41 located in the display area AA can be 0.6, 0.7, 0.8, 0.9, or 1, etc.

[0064] It should be noted that if there is no overflow portion 431 between the first partition 11 and the path extension platform 2, the thickness of the first inorganic encapsulation layer 41 at the first bottom cut opening UC1 is only 30% to 40% of the thickness of the first inorganic encapsulation layer in the display area AA. Therefore, in this embodiment, the overflow portion 431 of the organic encapsulation layer 43 is confined between the path extension platform 2 and the first partition 11 by the path extension platform 2, and the overflow portion 431 fills the first bottom cut opening UC1. This allows the first inorganic encapsulation layer 41 to form a continuous film on the side of the first partition 11, increasing the film thickness of the first inorganic encapsulation layer at the first bottom cut opening UC, reducing the risk of cracking in the first inorganic encapsulation layer 41, and thus improving the reliability of the display panel.

[0065] In some embodiments, the display panel includes a first barrier 5, a partition 1 and a path extension platform 2 disposed on a substrate 10, a second partition 12 located on the side of the first partition 11 away from the display area AA, and the first barrier 5 disposed on the first partition 11.

[0066] In some embodiments, a groove is provided between the path extension platform 2 and the partition 1.

[0067] like Figure 2 and Figure 3 As shown, a groove G is provided between the path extension platform 2 and the first partition 11, and a groove G is also provided between the path extension platform 2 and the second partition 12. The groove G can accommodate overflowing organic encapsulation material, thus confining the overflowing organic encapsulation material between the path extension platform 2 and the partition 1. At the path extension platform 2, the first inorganic encapsulation layer 41 is directly formed on the second inorganic encapsulation layer 42, and forms a sealed structure with the second inorganic encapsulation layer 42. This not only prevents the organic encapsulation material from further overflowing to the edge of the non-display area, but also prevents moisture from the external environment from intruding into the display area through the light-emitting common layer, thereby further improving the encapsulation performance of the display panel.

[0068] In some embodiments, the vertical distance between the top of the path extension platform 2 and the bottom of the groove G is less than the vertical distance between the top of the first retaining wall 5 and the bottom of the groove G.

[0069] Combination Figure 2 and Figure 3 As shown, the vertical distance between the top of the path extension platform 2 and the bottom of the groove G is the first distance d1, and the vertical distance between the top of the first barrier 5 and the bottom of the groove G is the second distance d2. The lower part of the first barrier 5 is disposed on the same layer as the pixel definition layer 302, and the upper part of the first barrier 5 is disposed on the same layer as the support layer 303. The height of the first barrier 5 is the same as the height of the support layer 303. By making the distance between the top of the path extension platform 2 and the bottom of the groove G smaller than the distance between the top of the first barrier 5 and the bottom of the groove G, the situation where the mask scratches the path extension platform 2 and causes encapsulation failure can be avoided.

[0070] In some embodiments, the vertical distance between the top of the path extension platform 2 and the bottom of the groove is greater than or equal to half the vertical distance between the top of the partition 1 and the bottom of the groove.

[0071] like Figure 2 and Figure 3 As shown, the vertical distance between the top of the partition 1 and the bottom of the groove G is the third distance d3, where d1 is greater than or equal to 0.5d3. This avoids the situation where the organic encapsulation material may overflow the path extension platform 2 due to its small height, and ensures that the path extension platform 2 can limit the overflowing organic encapsulation material between the first partition 11 and the path extension platform 2.

[0072] In some embodiments, the vertical distance between the top of the path extension platform 2 and the bottom of the groove G is less than the vertical distance between the top of the partition 1 and the bottom of the groove G.

[0073] like Figure 2 and Figure 3 As shown, by making the vertical distance between the top of the path extension platform 2 and the bottom of the groove G greater than half the vertical distance between the top of the partition 1 and the bottom of the groove G, and less than the vertical distance between the top of the partition 1 and the bottom of the groove G, the risk of cracking in the first inorganic encapsulation layer 41 and the second inorganic encapsulation layer 42 due to excessive height of the path extension platform 2 can be avoided.

[0074] In some embodiments, combined with Figure 2 and Figure 3 As shown, a groove G is formed between the path extension platform 2 and the partition 1. The depth of the groove G in the thickness direction of the display panel is equal to the vertical distance between the top of the path extension platform 2 and the bottom of the groove G. The depth of the groove G is greater than or equal to 1 micrometer. The groove G is used to accommodate overflowing organic encapsulation material, which forms an overflow portion 431 at the groove G and the first bottom cut opening UC1. If the depth of the groove G is too small, the organic encapsulation material can easily overflow the path extension platform 2; if the depth of the groove G is too large, it is not conducive to the continuous film formation of the first inorganic encapsulation layer 41 and the second inorganic encapsulation layer 42 at the groove G, increasing the risk of cracking. In this embodiment, by limiting the depth of the groove G to more than 1 micrometer, not only can the overflow of organic encapsulation material be avoided, but the film quality of the first inorganic encapsulation layer 41 at the first bottom cut opening UC1 can also be improved, reducing the risk of cracking.

[0075] In some embodiments, combined with Figures 2 to 4 As shown, in the direction from the display area AA to the non-display area NA, the distance between the path extension platform 2 and the adjacent partition 1 is a fourth distance d4, and the thickness of the organic encapsulation layer 43 in the display area AA is a first thickness h1. The fourth distance d4 is greater than or equal to the first thickness h1. In this way, sufficient space can be ensured between the path extension platform and the first partition 11 to accommodate any overflowing organic encapsulation material, preventing the organic encapsulation material from overflowing onto the path extension platform 2.

[0076] In some embodiments, combined with Figure 2 and Figure 3As shown, the width of the path extension platform 2 is greater than or equal to the width of the partition portion 1. It should be noted that if the width of the path extension platform 2 is too small, it will hinder the continuous film formation of the first inorganic encapsulation layer 41 and the second inorganic encapsulation layer 42 on the path extension platform 2, increasing the risk of cracking. By making the width of the path extension platform 2 greater than or equal to the width of the partition portion 1, it is possible to ensure that the top of the path extension platform 2 has good flatness and the sides of the path extension platform 2 have a small slope, facilitating the continuous film formation of the first inorganic encapsulation layer 41 and the second inorganic encapsulation layer 42 on the path extension platform 2. This confines the overflowing organic encapsulation material between the path extension platform 2 and the first partition portion 11 while reducing the risk of cracking in the inorganic encapsulation layer.

[0077] In some embodiments, combined with Figure 2 and Figure 3 As shown, the display panel includes two path extension platforms 2, multiple partition sections 1, and a second barrier wall 6. The two path extension platforms 2 include a first path extension platform 21 and a second path extension platform 22. The second barrier wall 6 is located on the side of the second partition section 12 away from the first partition section 11. The first path extension platform 21 is located between the first partition section 11 and the second partition section 12, and the second path extension platform 22 is located between the second partition section 12 and the second barrier wall 6.

[0078] According to the display panel provided in the embodiments of this application, the embodiments of this application also provide a display device, such as... Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a display device according to an embodiment of this application. The display device 1000 includes a display panel 100 and a housing 200. The display panel 100 is disposed on the housing 200. The display panel 100 can be any of the display panels provided in the above embodiments to achieve the same or similar functions in the display device provided in the embodiments of this application.

[0079] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display panel having a display area and a non-display area. The display panel includes a partition portion, a path extension platform, a light-emitting common layer, and an encapsulation layer. At least two partition portions are arranged at intervals in the non-display area along the direction from the display area to the non-display area and extend along the edge of the display area. By adding a path extension platform between two adjacent partition portions, the distance between adjacent partition portions is extended by using the path extension platform, so that the encapsulation layer can be continuously formed at the partition portion and the path extension platform, reducing the risk of cracking in the encapsulation layer, thereby improving the encapsulation performance of the display panel and thus improving the reliability of the display panel.

[0080] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0083] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, The display panel includes a display area and a non-display area. At least two partition portions are spaced apart in the non-display area along the direction from the display area to the non-display area, and extend along the edge of the display area; A path extension platform is disposed between two adjacent partition sections; A light-emitting common layer is partially disposed on the partition and the path extension platform. The light-emitting common layer is interrupted at the partition and continuously disposed at the path extension platform. An encapsulation layer is partially disposed on the light-emitting common layer and is continuously disposed at the partition portion and the path extension platform.

2. The display panel as described in claim 1, characterized in that, At least two of the partition sections include a first partition section and a second partition section, and the path extension platform is disposed between the first partition section and the second partition section; The first partition portion has a first undercut opening on the side near the path extension platform. The encapsulation layer includes an organic encapsulation layer, which includes an overflow portion located between the first partition portion and the path extension platform, and fills the first undercut opening.

3. The display panel as described in claim 2, characterized in that, The encapsulation layer includes a first inorganic encapsulation layer, and a portion of the first inorganic encapsulation layer is disposed on the overflow portion; The ratio of the thickness of the portion of the first inorganic encapsulation layer located on the overflow portion to the thickness of the portion of the first inorganic encapsulation layer located in the display area is greater than 0.5 and less than or equal to 1.

4. The display panel as described in claim 2, characterized in that, The display panel includes a substrate and a first barrier wall. The partition and the path extension platform are disposed on the substrate. A groove is provided between the path extension platform and the partition. The second partition is located on the side of the first partition away from the display area. The first barrier wall is disposed on the first partition. The vertical distance between the top of the path extension platform and the bottom of the groove is less than the vertical distance between the top of the first retaining wall and the bottom of the groove.

5. The display panel as described in claim 4, characterized in that, The vertical distance between the top of the path extension platform and the bottom of the groove is greater than or equal to half the vertical distance between the top of the partition and the bottom of the groove.

6. The display panel as described in claim 5, characterized in that, The vertical distance between the top of the path extension platform and the bottom of the groove is less than the vertical distance between the top of the partition and the bottom of the groove.

7. The display panel as described in claim 4, characterized in that, The groove has a depth of 1 micrometer or more in the thickness direction of the display panel.

8. The display panel as claimed in any one of claims 1 to 7, characterized in that, The encapsulation layer includes an organic encapsulation layer; Wherein, in the direction from the display area to the non-display area, the distance between the path extension platform and the adjacent partition is greater than or equal to the thickness of the portion of the organic encapsulation layer located in the display area.

9. The display panel as described in any one of claims 1 to 7, characterized in that, The width of the path extension platform is greater than or equal to the width of the partition.

10. The display panel as claimed in any one of claims 1 to 7, characterized in that, The display panel includes two path extension platforms, multiple partitions, and a second barrier wall. The two path extension platforms include a first path extension platform and a second path extension platform. The multiple partitions include a first partition and a second partition. The second barrier wall is located on the side of the second partition away from the first partition. The first path extension platform is located between the first partition and the second partition, and the second path extension platform is located between the second partition and the second retaining wall.

11. The display panel as claimed in any one of claims 1 to 7, characterized in that, The path extension platform includes at least one metal pad and an organic pad disposed on the metal pad.

12. The display panel as claimed in claim 11, characterized in that, The partition portion includes a first partition sub-part, a second partition sub-part, and a third partition sub-part stacked in sequence, wherein the side of the first partition sub-part is recessed inward relative to the side of the second partition sub-part to form a first undercut opening; The at least one metal pad layer includes a first metal pad layer, which is disposed in the same layer as the second partition sub-part and is made of the same material. The organic pad layer is disposed in the same layer as the third partition sub-part and is made of the same material.

13. The display panel as claimed in claim 12, characterized in that, The display panel includes: At least one source / drain layer; and At least one planarization layer is disposed on the source-drain layer; The first metal pad layer is disposed in the same layer as the source and drain layers and is made of the same material; the organic pad layer is disposed in the same layer as the planarization layer and is made of the same material.

14. The display panel as claimed in claim 13, characterized in that, The path extension platform includes at least two metal pads, the at least two metal pads including a first metal pad and a second metal pad, the first metal pad being disposed on the second metal pad; The display panel includes at least one gate layer, and the second metal pad layer is disposed in the same layer as the gate layer and is made of the same material.

15. The display panel as claimed in any one of claims 1 to 7, characterized in that, The encapsulation layer includes: Second inorganic encapsulation layer; An organic encapsulation layer is disposed on the second inorganic encapsulation layer; and A first inorganic encapsulation layer is disposed on the organic encapsulation layer; The organic encapsulation layer is disconnected at the partition, and the first inorganic encapsulation layer and the second inorganic encapsulation layer are continuously arranged at the path extension platform.

16. The display panel as claimed in any one of claims 1 to 7, characterized in that, The display panel includes a plurality of light-emitting common layers, the plurality of light-emitting common layers including an organic common layer and a cathode layer disposed on the organic common layer.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 16.

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