Display panel and display device

Abstract

The invention relates to the technical field of display, in particular to a display panel and a display device. The display panel comprises a hole opening area, a partition area surrounding the hole opening area and a display area surrounding the partition area. A substrate; the at least two isolation columns are located on one side of the substrate, and the isolation columns are arranged in the partition area and surround the opening area; the cushion blocks are located between the isolation columns and the substrate, the cushion blocks are arranged in the partition area and surround the opening area, the vertical projections of at least two isolation columns on the substrate are located in the vertical projection of the same cushion block on the substrate, and the cushion blocks are made of metal. The display effect can be improved.

Description

Technical Field

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

[0002] Organic light-emitting diode (OLED) displays are a promising display technology due to their advantages such as thinness, light weight, fast response speed, low power consumption, high luminous efficiency, and flexible display capabilities. With increasing user demands and fierce competition within the industry, OLED displays are striving for higher screen-to-body ratios to deliver a more immersive visual experience.

[0003] Current technology places sensors such as cameras inside the screen, creating openings in the screen itself. However, OLED display panels with these openings currently suffer from display defects. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this disclosure provides a display panel and a display device, which are beneficial to improving the display effect.

[0005] This disclosure provides a display panel, including: an opening area, a partition area surrounding the opening area, and a display area surrounding the partition area; a substrate; at least two isolation pillars located on one side of the substrate, the isolation pillars being disposed in the partition area and surrounding the opening area; and a pad located between the isolation pillars and the substrate, the pad being disposed in the partition area and surrounding the opening area, wherein the vertical projection of the at least two isolation pillars onto the substrate lies within the vertical projection of the same pad onto the substrate, and the pad is made of metal.

[0006] This disclosure also provides a display device including the aforementioned display panel.

[0007] The technical solution provided in this disclosure has the following advantages compared with the prior art: The display panel disclosed herein includes a pad disposed in the isolation area. The pad can be a ring-shaped structure disposed around the opening area, and the pad is located between the isolation pillars and the substrate. The vertical projection of at least two isolation pillars onto the substrate lies within the vertical projection of the same pad onto the substrate. That is, a pad is disposed in the area corresponding to at least two isolation pillars. The isolation pillars are disposed on the side of the pad away from the substrate. Therefore, the placement of the pad can simultaneously reduce the distance between the at least two isolation pillars and the surface of the pixel definition layer away from the substrate. This helps to enhance the UV light intensity irradiated to the sidewalls of the isolation pillars, avoids the residue of pixel definition layer material at the sidewalls of the isolation pillars, and thus avoids the black spot problem in the hole area during subsequent reliability environmental processes, avoids display defects, and improves display performance. At the same time, the pad is made of metal and is a non-organic material. The placement of the pad does not introduce a moisture transport channel, avoiding moisture entry that could cause film peeling.

[0008] Correspondingly, the display device provided in this disclosure also has the above-mentioned technical effects. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0010] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of a display panel structure in related technologies; Figure 2 This is a plan view of a display panel provided in this disclosure; Figure 3 yes Figure 2 A cross-sectional view of the display panel along line A-A'; Figure 4 yes Figure 2 Another cross-sectional view of the display panel along A-A'; Figure 5 yes Figure 2 Another cross-sectional view of the display panel along A-A'; Figure 6 yes Figure 2 Another cross-sectional view of the display panel along A-A'; Figure 7 yes Figure 2 Another cross-sectional view of the display panel along A-A'; Figure 8 yes Figure 2 Another cross-sectional view of the display panel along A-A'; Figure 9 This is a plan view of a display device provided in this disclosure. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0013] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0014] Figure 1 This is a schematic diagram of a display panel structure in related technologies, for reference. Figure 1 The display panel has an opening area for housing sensors such as cameras. This opening area is prone to becoming a channel for water and oxygen intrusion. In related technologies, an isolation pillar 1 is installed within the partition area NA1' surrounding the opening area. The isolation pillar 1 interrupts the light-emitting functional layer 2, making it discontinuous at the isolation pillar 1, thus cutting off the transmission path of water vapor within the light-emitting functional layer 2 and reducing the risk of water vapor from the opening area seeping into the display area AA'. Simultaneously, the area corresponding to the isolation pillar 1 does not have organic insulating layers 3 and planarization layers 4, thereby increasing the distance between these organic insulating layers 3 and planarization layers and the opening area, preventing water vapor from entering these organic insulating layers 3 and planarization layers 4, and avoiding film peeling.

[0015] However, during the research process, the inventors discovered that a pixel definition layer 6 was provided on the side of the isolation pillar 1 away from the substrate 5. Since the area corresponding to the isolation pillar 1 did not have organic insulating layer 3 and planarization layer 4, the distance between the isolation pillar 1 and the surface of the pixel definition layer 6 away from the substrate 5 was relatively large. This resulted in a weak UV light intensity irradiating the sidewall of the isolation pillar 1, which in turn prevented the pixel definition layer material on the sidewall of the isolation pillar 1 from fully photoreacting and producing acid. As a result, the pixel definition layer material on the sidewall of the isolation pillar 1 could not be removed during development, resulting in pixel definition layer material residue. This caused the connection to be interrupted at the location of the pixel definition layer material residue after the subsequent evaporation of the light-emitting functional layer 2. During the reliability process, this exacerbated the release of water and oxygen at this location, resulting in the Grow Dark Spot in Hole (GDSH) problem in the subsequent reliability environment process, leading to display defects.

[0016] To address the aforementioned problems, this disclosure provides a display panel and a display device that can improve the display performance of the display panel.

[0017] The following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 2 This is a plan view of a display panel provided in this disclosure. Figure 3 yes Figure 2 A cross-sectional view of the display panel along A-A', see reference. Figure 2 and Figure 3 This disclosure provides a display panel, which includes: an opening area FA, a partition area NA1 surrounding the opening area FA, and a display area AA surrounding the partition area NA1; Substrate 10; At least two isolation pillars 20 are located on one side of the substrate 10. The isolation pillars 20 are disposed in the isolation region NA1 and surround the opening region FA. The spacer 30 is located between the isolation pillar 20 and the substrate 10. The spacer 30 is disposed in the isolation region NA1 and surrounds the opening region FA. The vertical projection of at least two isolation pillars 20 on the substrate 10 is located within the vertical projection of the same spacer 30 on the substrate 10. The material of the spacer 30 is metal.

[0019] Specifically, the display panel provided in this embodiment includes an opening area FA, a partition area NA1 surrounding the opening area FA, and a display area AA surrounding the partition area NA1. The opening area FA can be a through-hole structure that penetrates the display panel, or it can be an opening structure that does not penetrate the display panel. The opening area FA can be set as a receiving space for modules such as cameras and sensors in the display device. The partition area NA1 is set around the opening area FA and is not used for display. The display area AA is set around the partition area NA1 and is used for display. Optionally, the display panel may also include a non-display area NA2, which is set around the display area AA. The non-display area NA2 is not used for display but can be used to set up circuits and other structures. It should be noted that... Figure 2 The example shows a display panel including an opening area FA, which is circular in shape. In other embodiments of this disclosure, the number of opening areas FA can be two or more, and the shape of the opening area FA can also be set to any shape such as ellipse or square according to design requirements. These will not be described in detail here.

[0020] The display panel also includes a substrate 10, which can be a rigid substrate or a flexible substrate. The rigid substrate can be one or more of glass and metal sheets, but is not limited to; the flexible substrate can be one or more of polyethylene terephthalate, polyethylene terephthalate, polyetheretherketone, polystyrene, polycarbonate, polyarylate, polyarylate, polyimide, polyvinyl chloride, polyethylene, and textile fibers, but is not limited to.

[0021] The display panel also includes at least two isolation pillars 20, which are located on one side of the substrate 10. The isolation pillars 20 are disposed in the isolation region NA1 and surround the opening region FA. At least two isolation pillars 20 can be disposed in the isolation region NA1, and the isolation pillars 20 can be a ring structure surrounding the opening region FA. Subsequently, when forming the light-emitting functional layer 41, the isolation pillars 20 can disconnect the light-emitting functional layer 41, making it discontinuous, thereby cutting off the transmission path of moisture on the light-emitting functional layer 41.

[0022] The display panel also includes a pixel definition layer 50, which can be made of a positive black BPDL material, such as polyimide or acrylate resin. The display panel also includes support pillars PS, and the pixel definition layer 50 and the support pillars PS can be formed simultaneously using Halftone photolithography. The formation process of the pixel definition layer 50 includes photoresist coating, exposure, and development.

[0023] The display panel also includes a pad 30 disposed in the isolation area NA1. The pad 30 can be a ring structure disposed around the aperture area FA, and the pad 30 is located between the isolation pillars 20 and the substrate 10. The vertical projection of at least two isolation pillars 20 onto the substrate 10 lies within the vertical projection of the same pad 30 onto the substrate 10. That is, a pad 30 is disposed in the area corresponding to at least two isolation pillars 20. The isolation pillars 20 are disposed on the side of the pad 30 away from the substrate 10. Thus, the placement of the pad 30 can simultaneously reduce the distance between at least two isolation pillars 20 and the surface of the pixel definition layer 50 on the side away from the substrate 10. This helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillars 20, avoids the residue of pixel definition layer material on the sidewall of the isolation pillars 20, and avoids the problem of black spots in the aperture area during subsequent reliability environmental processes, thus avoiding display defects and improving display performance. At the same time, the material of the pad 30 is metal and is a non-organic material. The placement of the pad 30 does not introduce a moisture transport channel, avoiding moisture entry that could cause film peeling.

[0024] Optionally, the display panel further includes an encapsulation layer 70 for encapsulating the display panel. The encapsulation layer 70 includes a first inorganic encapsulation layer 71, an organic encapsulation layer 72, and a second inorganic encapsulation layer 73 stacked along a direction away from the substrate 10.

[0025] Continue to refer to Figure 2 and Figure 3 In some alternative embodiments, the display panel further includes a barrier 60 located on one side of the substrate 10, the barrier 60 being disposed in the partition region NA1 and surrounding the opening region FA; Along a direction parallel to the plane of the substrate 10, the vertical projections of each isolation pillar 20 located between the baffle 60 and the opening area FA on the substrate 10 lie within the vertical projection of the same pad 30 on the substrate 10.

[0026] Specifically, in the manufacturing process of the display panel, when forming the organic encapsulation layer 72, the organic material used to form the organic encapsulation layer 72 has a certain degree of fluidity. Therefore, a barrier 60 with a relatively large height can be provided in the partition area NA1. The barrier 60 can be a ring-shaped structure surrounding the opening area FA. The barrier 60 blocks the organic material, preventing it from overflowing into the opening area FA, thereby ensuring the effectiveness of the encapsulation.

[0027] Along a direction parallel to the plane of the substrate 10, the vertical projections of each isolation pillar 20 located between the baffle 60 and the aperture area FA on the substrate 10 lie within the vertical projection of the same pad 30 on the substrate 10. That is, by setting a pad 30, the distance between each isolation pillar 20 located between the baffle 60 and the aperture area FA and the surface of the pixel definition layer 50 away from the substrate 10 can be reduced simultaneously. This helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillar 20, avoids the residue of pixel definition layer material on the sidewall of the isolation pillar 20, and thus avoids the problem of black spots in the aperture area during subsequent reliability environment processes, avoids display defects, and helps to improve the display effect. Meanwhile, by using a pad 30 to elevate each isolation pillar 20 located between the baffle 60 and the aperture area FA, high film layer differences between the isolation pillars 20 can be avoided, the amount of photoresist between the isolation pillars 20 before exposure can be reduced, and the residue of pixel definition layer material between the isolation pillars 20 can be avoided. This avoids the problem of black spots in the aperture area during the subsequent reliability environment process, avoids display defects, and helps to improve the display effect.

[0028] Continue to refer to Figure 2 and Figure 3 In some alternative embodiments, the display panel further includes an array layer 80 located on one side of the substrate 10, and the array layer 80 includes a plurality of metal layers M; The pad 30 includes at least one sub-part 31, each sub-part 31 being located in a respective metal layer M.

[0029] Specifically, the display panel also includes an array layer 80, which is located on one side of the substrate 10. The array layer 80 includes various functional circuits, such as pixel circuits. The array layer 80 includes multiple metal layers M, and the pad 30 includes at least one sub-part 31, with each sub-part 31 located on each metal layer M. This allows the pad 30 to be set using each metal layer M in the array layer 80, thereby raising the isolation pillar 20 and reducing the distance between the isolation pillar 20 and the surface of the pixel definition layer 50 away from the substrate 10. This helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillar 20, avoids the residue of pixel definition layer material on the sidewall of the isolation pillar 20, and avoids the black spot problem in the hole area during subsequent reliability environmental processes, thus avoiding display defects and improving display effect. It also helps to reduce process steps and reduce production costs.

[0030] Continue to refer to Figure 2 and Figure 3 In some optional embodiments, the plurality of metal layers M include a plurality of first metal layers 81, second metal layers 82 and third metal layers 83 disposed sequentially; The array layer 80 also includes an inorganic insulating layer 84, and an inorganic insulating layer 84 is provided between two adjacent first metal layers 81 and between the first metal layer 81 and the second metal layer 82. The isolation pillar 20 is located in the third metal layer 83, and an inorganic insulating layer 84 is disposed between the isolation pillar 20 and the substrate 10.

[0031] Specifically, the array layer 80 includes multiple metal layers M and an inorganic insulating layer 84. The multiple metal layers M include multiple first metal layers 81, second metal layers 82, and third metal layers 83 arranged sequentially. An inorganic insulating layer 84 is disposed between adjacent first metal layers 81 and between first metal layers 81 and second metal layers 82. The isolation pillar 20 is located on the third metal layer 83, allowing the third metal layer 83 to be reused for the isolation pillar 20, which helps reduce process steps and production costs.

[0032] An inorganic insulating layer 84 is disposed between the isolation pillar 20 and the substrate 10, with each inorganic insulating layer 84 extending to the isolation region NA1. Each inorganic insulating layer 84 elevates each isolation pillar 20, thereby enhancing the UV light intensity irradiated to the sidewalls of the isolation pillar 20 and preventing pixel definition layer material residue at the sidewalls of the isolation pillar 20. Furthermore, the inorganic insulating layer 84 is made of inorganic material, which does not introduce moisture transport channels, thus preventing moisture ingress and film peeling.

[0033] Continue to refer to Figure 2 and Figure 3 In some alternative embodiments, at least one sub-part 31 of the pad 30 is located in the first metal layer 81.

[0034] Specifically, the array layer 80 includes multiple metal layers M, and the pad 30 includes at least one sub-part 31. At least one sub-part 31 of the pad 30 is located on the first metal layer 81, so the first metal layer 81 can be reused to set the pad 30, thereby raising the isolation pillar 20 and reducing the distance between the isolation pillar 20 and the surface of the pixel definition layer 50 away from the substrate 10. This helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillar 20, avoid the residue of pixel definition layer material on the sidewall of the isolation pillar 20, and thus avoid the black spot problem in the hole area during the subsequent reliability environment process, avoid display defects, and improve the display effect. It also helps to reduce the process and reduce the production cost.

[0035] It should be noted that, Figure 3 The example shown is that the sub-part 31 is provided only in one first metal layer 81. In other embodiments of this disclosure, reference is made to... Figure 4 , Figure 4 yes Figure 2 Another cross-sectional view of the display panel along A-A' shows that sub-parts 31 can be provided in each of the first metal layers 81, thereby further raising each isolation pillar 20, which helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillar 20 and avoids the residue of pixel definition layer material at the sidewall of the isolation pillar 20.

[0036] It should be noted that, Figure 4 The diagram exemplarily shows that the array layer 80 includes two first metal layers 81. In other embodiments disclosed, the array layer 80 may also include other numbers of first metal layers 81. Accordingly, two or more numbers of first metal layers 81 may be reused to form the sub-parts 31 of the pad 30. These will not be described in detail here.

[0037] Figure 5 yes Figure 2 Another cross-sectional view of the display panel along A-A', see reference. Figure 2 and Figure 5 In some alternative embodiments, a sub-part 31 of the pad 30 is located in the second metal layer 82, and the isolation post 20 is in contact with the sub-part 31.

[0038] Specifically, the array layer 80 includes multiple metal layers M, and the pad 30 includes at least one sub-part 31. One sub-part 31 of the pad 30 is located on the second metal layer 82, so the second metal layer 82 can be reused to set the pad 30, thereby raising the isolation pillar 20 and reducing the distance between the isolation pillar 20 and the surface of the pixel definition layer 50 away from the substrate 10. This helps to enhance the UV light intensity irradiated to the sidewall of the isolation pillar 20, avoid the residue of pixel definition layer material on the sidewall of the isolation pillar 20, and thus avoid the black spot problem in the hole area during the subsequent reliability environment process, avoid display defects, and improve the display effect. It also helps to reduce the process and reduce the production cost.

[0039] Furthermore, to avoid introducing a moisture transport channel, no organic layer is provided between the pad 30 and the substrate 10, and the isolation pillar 20 can be directly disposed on the side of the sub-part 31 away from the substrate 10, that is, the isolation pillar 20 is in contact with the sub-part 31.

[0040] Figure 6 yes Figure 2 Another cross-sectional view of the display panel along A-A', see reference. Figure 2 and Figure 6 The array layer 80 includes multiple metal layers M, and the pad 30 includes multiple sub-parts 31. One sub-part 31 of the pad 30 is located in the second metal layer 82, and at least one sub-part 31 is located in the first metal layer 81. This can further elevate each isolation pillar 20, thereby enhancing the UV light intensity irradiated to the sidewall of the isolation pillar 20 and preventing the residue of pixel definition layer material at the sidewall of the isolation pillar 20.

[0041] Figure 7 yes Figure 2 Another cross-sectional view of the display panel along A-A', see reference. Figure 2 and Figure 7 In some alternative embodiments, the display panel further includes a metal protection portion 90 that covers the sidewall of the sub-portion 31 located in the second metal layer 82.

[0042] Specifically, the array layer 80 includes multiple metal layers M, and the pad 30 includes at least one sub-part 31. One sub-part 31 of the pad 30 is located in the second metal layer 82, so the second metal layer 82 can be reused to set the pad 30. Since no organic layer is provided between the pad 30 and the substrate 10, the isolation pillar 20 is directly disposed on the side of the sub-part 31 located in the second metal layer 82 away from the substrate 10. The display panel also includes a metal protection section 90, which covers the sidewall of the sub-section 31 located in the second metal layer 82. The metal protection section 90 can protect the sidewall of the sub-section 31 located in the second metal layer 82, preventing the etching solution in the patterning process (also known as the etching process) from over-etching the sidewall of the sub-section 31 located in the second metal layer 82. As a result, the sidewall of the sub-section 31 located in the second metal layer 82 does not have a notch, avoiding air bubbles during the subsequent vacuum drying of the photoresist, thereby improving the yield of subsequent evaporation. At the same time, the sub-section 31 located in the second metal layer 82 can provide stable support for the isolation pillar 20.

[0043] Continue to refer to Figure 2 and Figure 7 In some alternative embodiments, the metal protection portion 90 is located in the third metal layer 83.

[0044] Specifically, the third metal layer 83 is formed after the second metal layer 82, so that the third metal layer 83 can be reused to provide the metal protection part 90 to protect the sidewall of the sub-part 31 located in the second metal layer 82, and it is beneficial to reduce the process and reduce the production cost.

[0045] Continue to refer to Figure 2 and Figure 3 In some alternative embodiments, the array layer 80 further includes an organic insulating layer 85 and a planarization layer 86, with the organic insulating layer 85 disposed between the second metal layer 82 and the third metal layer 83, and the planarization layer 86 disposed on the side of the third metal layer 83 away from the substrate 10. The display panel also includes a barrier 60 located on the side of the array layer 80 away from the substrate 10. The barrier 60 is disposed in the isolation region NA1 and surrounds the opening region FA. At least a portion of the barrier 60 is located in the organic insulating layer 85 and / or the planarization layer 86.

[0046] Specifically, the array layer 80 also includes an organic insulating layer 85 and a planarization layer 86. The organic insulating layer 85 is disposed between the second metal layer 82 and the third metal layer 83, providing insulation between them. The planarization layer 86 is disposed on the side of the third metal layer 83 furthest from the substrate 10, providing a relatively flat surface to facilitate the subsequent placement of devices. Both the organic insulating layer 85 and the planarization layer 86 are made of organic materials.

[0047] In the manufacturing process of the display panel, when forming the organic encapsulation layer 72, the organic material used to form the organic encapsulation layer 72 has a certain degree of fluidity. Therefore, a barrier wall 60 with a relatively large height can be provided in the partition area NA1. The barrier wall 60 can be a ring-shaped structure surrounding the opening area FA. The barrier wall 60 blocks the organic material, preventing it from overflowing into the opening area FA, thereby ensuring the effectiveness of the encapsulation. At least a portion of the barrier wall 60 is located in the organic insulating layer 85 and / or the planarization layer 86, meaning that the organic insulating layer 85 and the planarization layer 86 can be reused to set the barrier wall 60. The materials of the organic insulating layer 85 and the planarization layer 86 are both organic materials with relatively thick film layers, which is beneficial for setting a barrier wall 60 with a relatively high thickness.

[0048] Figure 8 yes Figure 2 Another cross-sectional view of the display panel along A-A', see reference. Figure 2 and Figure 8 In some alternative embodiments, the display panel further includes a pixel definition layer 50 located on the side of the array layer 80 away from the substrate 10, and a portion of the barrier 60 is located in the pixel definition layer 50.

[0049] Specifically, the display panel also includes a pixel definition layer 50, which is located on the side of the array layer 80 away from the substrate 10. The pixel definition layer 50 includes multiple cutouts (not shown in the figure), and the light-emitting elements (not shown in the figure) in the display panel can be correspondingly disposed in the cutouts. The pixel definition layer 50 can be reused to set the barrier 60. The pixel definition layer 50 is made of organic material and has a relatively thick film layer, which is beneficial for setting the barrier 60 with a relatively high thickness.

[0050] like Figure 9 As shown, Figure 9 This is a plan view of a display device provided in this disclosure. The present disclosure also provides a display device 1000, including the display panel 100 provided in any of the above embodiments. Figure 9 The provided embodiments use mobile phones as an example to illustrate the display device. It is understood that the display device provided in the embodiments of this disclosure can be any electronic product with display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, in-vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. The embodiments of this disclosure do not make any special limitations on this.

[0051] The display device provided in this disclosure has the same technical features as the display panel provided in the above embodiments, so it can also solve the same technical problems and achieve the same technical effects.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, include: An opening area, a partition area surrounding the opening area, and a display area surrounding the partition area; Substrate; At least two isolation pillars are located on one side of the substrate, the isolation pillars are disposed in the partition area and surround the opening area; A pad is located between the isolation pillars and the substrate. The pad is disposed in the partition area and surrounds the opening area. The vertical projections of at least two of the isolation pillars on the substrate are located within the vertical projection of the same pad on the substrate. The pad is made of metal.

2. The display panel according to claim 1, characterized in that, The display panel further includes a baffle wall located on one side of the substrate, the baffle wall being disposed in the partition area and surrounding the opening area; Along a direction parallel to the plane of the substrate, the vertical projections of each of the isolation pillars located between the barrier and the opening area on the substrate lie within the vertical projection of the same pad on the substrate.

3. The display panel according to claim 1, characterized in that, The display panel further includes an array layer located on one side of the substrate, the array layer comprising multiple metal layers; The pad includes at least one sub-part, each sub-part located in each of the metal layers.

4. The display panel according to claim 3, characterized in that, The plurality of metal layers include a plurality of first metal layers, second metal layers and third metal layers disposed sequentially; The array layer further includes an inorganic insulating layer, which is disposed between two adjacent first metal layers and between the first metal layer and the second metal layer. The isolation pillar is located in the third metal layer, and the inorganic insulating layer is disposed between the isolation pillar and the substrate.

5. The display panel according to claim 4, characterized in that, At least one of the sub-parts of the pad is located in the first metal layer.

6. The display panel according to claim 4, characterized in that, One of the sub-parts of the pad is located in the second metal layer, and the isolation post is in contact with the sub-part.

7. The display panel according to claim 6, characterized in that, The display panel also includes a metal protective portion that covers the sidewall of the sub-part located in the second metal layer.

8. The display panel according to claim 7, characterized in that, The metal protective part is located in the third metal layer.

9. The display panel according to claim 4, characterized in that, The array layer further includes an organic insulating layer and a planarization layer. The organic insulating layer is disposed between the second metal layer and the third metal layer, and the planarization layer is disposed on the side of the third metal layer away from the substrate. The display panel further includes a barrier wall located on the side of the array layer away from the substrate. The barrier wall is disposed in the partition area and surrounds the opening area. At least a portion of the barrier wall is located in the organic insulating layer and / or the planarization layer.

10. The display panel according to claim 9, characterized in that, The display panel further includes a pixel definition layer, which is located on the side of the array layer away from the substrate, and a portion of the barrier is located in the pixel definition layer.

11. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1-10.

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