Display panel and display device

Abstract

The embodiment of the utility model provides a display panel and a display device, relates to the technical field of display, and aims to improve the water vapor invasion resistance and improve the progressive hole black spot phenomenon. The display panel comprises a hole digging area, a hole edge area surrounding the outer side of the hole digging area and a display area located on the outer side of the hole edge area. The display panel further comprises a display substrate, a packaging layer arranged on the display substrate and an organic material layer arranged on the side, away from the display substrate, of the packaging layer in a stacked mode, and at least part of the organic material layer is located in the display area. Part of the at least one organic material layer is further located in the hole edge area, the at least one organic material layer comprises a plurality of first parts located in the hole edge area, and the first parts are arranged at intervals in the first direction from the hole digging area to the display area. The display panel can be used for displaying pictures.

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] In the fabrication process of Organic Light-Emitting Diode (OLED) display panels, there is a film-peeling process on the surface of the display panel. The stress of peeling the film can easily cause the film layers in the display panel to separate, providing a path for moisture intrusion. When moisture enters the OLED device, it can easily create many black non-light-emitting areas in its light-emitting area. Moreover, the black non-light-emitting areas will gradually increase in size over time. When the black non-light-emitting areas increase to a certain extent, they can be seen with the naked eye and are regarded as progressive black spots. Utility Model Content

[0003] This application proposes a display panel and display device, which aims to improve the ability to resist moisture intrusion and improve the phenomenon of progressive black spots.

[0004] To achieve the above objectives, embodiments of this application provide the following technical solutions:

[0005] On one hand, a display panel is provided, the display panel including a punch-hole area, a punch-hole edge area surrounding the punch-hole area, and a display area located outside the punch-hole edge area. The display panel also includes a display substrate, an encapsulation layer disposed on the display substrate, and an organic material layer stacked on the side of the encapsulation layer away from the display substrate, at least a portion of the organic material layer being located in the display area. At least one portion of the organic material layer is also located in the punch-hole edge area, and the at least one organic material layer includes a plurality of first portions located in the punch-hole edge area, the plurality of first portions being spaced apart along a first direction from the punch-hole area to the display area.

[0006] The display panel provided in the embodiments of this application patterns the portion of the organic material layer located in the hole edge area, and along the first direction from the hole area to the display area, the organic material layer forms multiple spaced first portions in the hole edge area, that is, in the first direction, the organic material layer is discontinuous in the hole edge area, and the organic material layer is set as an "active weak layer".

[0007] In the module manufacturing process, a lamination process is used to attach a film on top of the organic material layer. After the film is attached, the release film on the surface needs to be peeled off. At the edge of the cut track where the hole area and the hole edge area meet, the stress release of the film peeling can easily cause the organic material layer to separate from the film layer below it. By setting the organic material layer to break at the hole edge area, even if the stress of the film peeling causes the first part to separate at the hole edge area, the separation force will not be transmitted to the display area. This can prevent the separation of the organic material layer from extending to the display area, improve the connection strength of the organic material layer in the display area, thereby blocking or extending the water vapor intrusion path and improving the progressive hole black spot phenomenon.

[0008] In some embodiments, the display panel includes a plurality of organic material layers, at least two of which are located in the aperture edge region. Of the at least two organic material layers, the organic material layer closest to the display substrate includes a plurality of first portions located in the aperture edge region, and the plurality of first portions are spaced apart along the first direction.

[0009] In some embodiments, the display substrate includes opposing first and second surfaces, and the organic material layer is stacked on the first surface. The display panel further includes a plurality of first isolation pillars disposed on the first surface, the plurality of first isolation pillars being located within the aperture edge region. Along the first direction, the plurality of first isolation pillars are spaced apart, and at least a portion of the first portion is embedded between two adjacent first isolation pillars.

[0010] In some embodiments, the display panel includes a plurality of organic material layers, each comprising a first organic material layer and a second organic material layer stacked sequentially, the first and second organic material layers also being located in the aperture edge region. The first organic material layer includes a plurality of first portions located in the aperture edge region, and the second organic material layer includes a plurality of second portions located in the aperture edge region. Along the first direction, the plurality of second portions are spaced apart, and at least partially embedded between two adjacent first portions.

[0011] In some embodiments, the orthographic projection of the first part onto the display substrate is annular. The orthographic projection of the second part onto the display substrate is annular, or the second part includes a plurality of patterns surrounding the cutout area, and the plurality of patterns are spaced apart.

[0012] In some embodiments, the display panel further includes a touch structure disposed on the side of the encapsulation layer away from the display substrate. The display panel includes one organic material layer, and the organic material layer is disposed on the side of the touch structure away from the display substrate. The organic material layer is located in the display area and the hole edge area, and the organic material layer includes the plurality of first portions located in the hole edge area, wherein the plurality of first portions are spaced apart along the first direction.

[0013] In some embodiments, the display panel includes a plurality of organic material layers, wherein the plurality of organic material layers include a first organic material layer, a second organic material layer, and a third organic material layer stacked sequentially. The display panel also includes a touch structure disposed on the side of the encapsulation layer away from the display substrate. The touch structure includes a first organic material layer, a first touch electrode layer, a second organic material layer, and a second touch electrode layer stacked sequentially, wherein the third organic material layer is disposed on the side of the second touch electrode layer away from the display substrate.

[0014] At least one of the first organic material layer, the second organic material layer, and the third organic material layer is also located in the hole edge region. The at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

[0015] In some embodiments, the first organic material layer is located in the display area and the aperture edge area, and the second and third organic material layers are at least partially located in the display area. The first organic material layer includes a plurality of first portions located in the aperture edge area, and the plurality of first portions are spaced apart along the first direction.

[0016] In some embodiments, the third organic material layer is located in the display area and the hole edge area, and in the hole edge area, the third organic material layer covers the plurality of first portions. Alternatively, the second organic material layer is located in the display area and the hole edge area, and the third organic material layer is located in the display area and the hole edge area, and in the hole edge area, both the second organic material layer and the third organic material layer cover the plurality of first portions.

[0017] In some embodiments, the display panel further includes a touch structure disposed on the side of the encapsulation layer away from the display substrate. The display panel includes a plurality of organic material layers, each of which includes a first organic material layer, a black matrix layer, and a second organic material layer sequentially stacked on the side of the touch structure away from the display substrate. The display panel also includes a color filter structure disposed in the display area, the color filter structure including the first organic material layer, the black matrix layer, a plurality of color resist layers, and the second organic material layer stacked on the display substrate.

[0018] At least one of the first organic material layer, the black matrix layer, and the second organic material layer is also located in the hole edge region. The at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

[0019] In some embodiments, the first organic material layer and the black matrix layer are located in the display area and the aperture edge area, and the second organic material layer is at least partially located in the display area. The first organic material layer includes a plurality of first portions located in the aperture edge area, and the black matrix layer includes a plurality of second portions located in the aperture edge area. Along the first direction, the plurality of second portions are spaced apart, and at least partially embedded between two adjacent first portions.

[0020] In some embodiments, the display panel includes a plurality of organic material layers, the plurality of organic material layers including a first organic material layer and a second organic material layer stacked on the side of the encapsulation layer away from the display substrate.

[0021] The display substrate further includes a pixel defining layer disposed in the display area, and the display panel further includes a light emission enhancement structure, the light emission enhancement structure including a plurality of first refractive index layer structures located in the first organic material layer and a second refractive index layer structure located in the second organic material layer, wherein the orthographic projection of the first refractive index layer structure on the display substrate at least partially overlaps with the area where the pixel defining layer is located; the second refractive index layer structure covers the plurality of first refractive index layer structures, and the refractive index of the first refractive index layer structure is less than the refractive index of the second refractive index layer structure.

[0022] At least one of the first organic material layer and the second organic material layer is also located in the hole edge region, and the at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

[0023] In some embodiments, the first organic material layer and the second organic material layer are located in the display area and the aperture edge area, the first organic material layer including a plurality of first portions located in the aperture edge area, and the second organic material layer including a plurality of second portions located in the aperture edge area. Along the first direction, the plurality of second portions are spaced apart, and at least partially embedded between two adjacent first portions.

[0024] In some embodiments, the display panel further includes a plurality of second isolation pillars and a barrier dam disposed on the first surface, wherein the plurality of second isolation pillars and the barrier dam are all located within the aperture edge area. Along the first direction, the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars are arranged sequentially, and the plurality of first portions are located on the side of the barrier dam away from the display area.

[0025] In some embodiments, the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked sequentially. The first inorganic encapsulation layer covers the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars. The organic encapsulation layer is located on the side of the barrier dam closer to the display area and covers the plurality of second isolation pillars. The second inorganic encapsulation layer covers the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars.

[0026] In some embodiments, the first isolation pillar includes a first isolation portion and a second isolation portion, wherein the second isolation portion is disposed on the side of the first isolation portion away from the display substrate. The display panel further includes a first source / drain conductive layer and a second source / drain conductive layer sequentially stacked on the display substrate, wherein the first isolation portion is located in the first source / drain conductive layer and the second isolation portion is located in the second source / drain conductive layer.

[0027] In some embodiments, the display substrate further includes an isolation groove extending from the first surface into the display substrate. Along the first direction, the isolation groove is disposed between at least two adjacent first isolation pillars.

[0028] In some embodiments, the display substrate further includes an isolation pad layer and an insulating layer covering the isolation pad layer, wherein the first isolation post is disposed on the side of the insulating layer away from the isolation pad layer, and the isolation groove is disposed within the insulating layer.

[0029] In some embodiments, the isolation pad layer includes a first pad layer and a second pad layer, wherein the second pad layer is disposed on the side of the first pad layer near the first isolation pillar. The display substrate further includes a first gate conductive layer and a second gate conductive layer stacked sequentially, wherein the first pad layer is located in the first gate conductive layer and the second pad layer is located in the second gate conductive layer.

[0030] The insulating layer includes a first inorganic insulating layer and a second inorganic insulating layer. The first inorganic insulating layer is disposed between the first pad and the second pad, and the second inorganic insulating layer is disposed between the second pad and the first isolation column. The isolation groove penetrates through the first inorganic insulating layer and the second inorganic insulating layer.

[0031] On the other hand, a display device is provided, which includes the display panel in any of the above embodiments and a controller electrically connected to the display panel.

[0032] The above-described display device has the same structure and beneficial technical effects as the display panel provided in some of the above embodiments, and will not be described again here. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in some embodiments of this application will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not actual dimensions of the products or actual processes of the methods involved in the embodiments of this application.

[0034] Figure 1 A structural diagram of the display device provided in the embodiments of this application;

[0035] Figure 2 for Figure 1 A partial sectional view of the display panel along section line AA';

[0036] Figure 3 for Figure 1 A magnified view of the display panel at point M;

[0037] Figure 4 for Figure 3 A partial sectional view of the display panel along section line BB';

[0038] Figures 5 to 18 Structural diagrams of various display panels with organic FMLOC structures provided in embodiments of this application;

[0039] Figures 19-23 Structural diagrams of various display panels with COE structures provided in embodiments of this application;

[0040] Figures 24-27 Structural diagrams of various display panels with EES structures provided in embodiments of this application. Detailed Implementation

[0041] The technical solutions in some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0042] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and encompassing, that is, "including, but not limited to".

[0043] Hereinafter, 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0044] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. For example, in describing some embodiments, the term "connection" may be used to indicate that two or more components have direct physical or electrical contact with each other.

[0045] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0046] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0047] This document describes exemplary embodiments with reference to cross-sectional views, which are intended as idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations caused, for example, by manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0048] Embodiments of this application provide a display device, which can be an organic light-emitting diode (OLED) display device. Figure 1 This is a structural diagram of a display device provided in an embodiment of this application.

[0049] See Figure 1 The display device 100 includes a display panel 10 and a controller 20 electrically connected to the display panel 10. The controller 20 can be located on the non-display side of the display panel 10 and is used to control the display panel 10 to display images.

[0050] The aforementioned display device can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images), and whether it contains text or images. More specifically, the embodiments described are contemplated to be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0051] Figure 2 for Figure 1 A partial sectional view of the display panel along section line AA'.

[0052] See Figure 2 The display panel 10 includes a display substrate 1, an encapsulation layer 2 covering the display substrate 1, a touch structure 3 disposed on the side of the encapsulation layer 2 away from the display substrate 1, and one or more organic material layers 4 covering the touch structure 3.

[0053] The display substrate 1 includes a substrate 18 and a pixel driving circuit layer 19 disposed on the substrate 18. The pixel driving circuit layer 19 includes a thin film transistor T and a capacitor C. The thin film transistor T includes an active layer A, a gate G, a source S and a drain D. The capacitor C includes a first electrode C1 and a second electrode C2.

[0054] The display substrate 1 further includes a pixel defining layer 1a, an anode 1b, a light-emitting layer 1c, and a cathode 1d disposed on the side of the pixel driving circuit layer 19 away from the substrate 18. The anode 1b is electrically connected to the drain D of one of the plurality of thin-film transistors T, which serves as a driving transistor. Exemplarily, the display substrate 1 also includes a transfer electrode 1e, through which the anode 1b is electrically connected to the drain D of the driving transistor. The pixel defining layer 1a includes a plurality of openings, each opening exposing at least a portion of the anode 1b. At least a portion of the light-emitting layer 1c is disposed within an opening, and the cathode 1d is disposed on the side of the light-emitting layer 1c away from the substrate 18. The anode 1b and the cathode 1d respectively receive voltage signals and generate an electric field, under which the light-emitting layer 1c can emit light.

[0055] See Figure 2 The display substrate 1 includes a first gate conductive layer Gate1, a second gate conductive layer Gate2, a first source-drain conductive layer SD1, and a second source-drain conductive layer SD2 stacked sequentially. The gate G of the thin film transistor T and the first electrode C1 of the capacitor C are located in the first gate conductive layer Gate1, the second electrode C2 of the capacitor C is located in the second gate conductive layer Gate2, the source S and drain D of the thin film transistor T are located in the first source-drain conductive layer SD1, and the transfer electrode 1e is located in the second source-drain conductive layer SD2.

[0056] See also Figure 2 The encapsulation layer 2 includes a first inorganic encapsulation layer 21, an organic encapsulation layer 22, and a second inorganic encapsulation layer 23 stacked sequentially. The touch structure 3 includes a first insulating layer 31, a first touch electrode layer 32, a second insulating layer 33, and a second touch electrode layer 34 stacked sequentially.

[0057] The aforementioned touch structure 3 is directly disposed on the encapsulation layer 2 of the display substrate 10. This technology of directly forming the touch structure 3 on the encapsulation layer 2 of the display substrate 10 is called Flexible Metal Layer On Cell (FMLOC) technology, which can make the display panel 10 thinner and lighter. This technology can also be applied to foldable and rollable OLED display devices.

[0058] Figure 3 for Figure 1 A magnified view of the display panel at point M; Figure 4 for Figure 3 A partial sectional view of the display panel along section line BB'.

[0059] See Figure 3 and Figure 4The display panel 10 includes a punch-hole area A1, a hole edge area A2 surrounding the punch-hole area A1, and a display area A3 located outside the hole edge area A2. The punch-hole area A1 is formed by cutting the display panel 10, and the edge of the punch-hole area A1 is the cutting channel. The punch-hole area A1 can be used to place functional devices such as cameras.

[0060] At least a portion of the aforementioned one or more organic material layers 4 is located in the display area A3, wherein at least one portion of the organic material layer 4 is also located in the hole edge area A2, the organic material layer 4 including a plurality of first portions 40 located in the hole edge area A2, the plurality of first portions 40 being spaced apart along a first direction U from the hole area A1 to the display area A3.

[0061] In the module (MDL) fabrication process, a lamination (Lami) process is used to attach a film over the organic material layer 4. After the film is attached, the release film on the surface needs to be peeled off. At the edge of the cut where the perforation area A1 and the edge area A2 meet, the stress release during film peeling can easily cause the organic material layer 4 to separate from the underlying film layer (second insulating layer 33). Based on this, in the above embodiments of this application, the portion of the organic material layer 4 located in the edge area A2 is patterned along the first line from the perforation area A1 to the display area A3. In one direction U, the organic material layer 4 forms multiple spaced first parts 40 in the hole edge region A2. That is, in the first direction U, the organic material layer 4 is discontinuous in the hole edge region A2. The organic material layer 4 is set as an "active weak layer". In this way, even if the stress of tearing the film causes the first part 40 to separate in the hole edge region A2, the separation force will not be transmitted to the display area A3. This can prevent the separation of the organic material layer 4 from extending to the display area A3, improve the connection strength of the organic material layer 4 in the display area A3, thereby blocking or extending the water vapor intrusion path and improving the progressive hole black spot phenomenon.

[0062] For example, the first part 40 is annular in shape when projected onto the display substrate 1. It is understood that the perforated area A1 is a circular hole, and the stress of tearing the film is transmitted outwards along the cutting edge of the perforated area A1. Based on this, by setting the shape of the first part 40 to be annular around the perforated area A1, the separation force can be prevented from being transmitted to the display area A3 in any direction of 360°, thus better preventing the separation and extension of the organic material layer 4 to the display area A3.

[0063] The projection shape of the first part 40 can also be multiple discontinuous blocks, which can be set around the cut area A1.

[0064] In related technologies, the organic material layer 4 has a design pattern, that is, a mask is used to prepare the organic material layer 4. By improving the pattern of the mask, this application can pattern the part of the organic material layer 4 located in the hole edge region A2. Therefore, there is no need to add a mask and process steps, and no increase in process cost.

[0065] For example, see Figure 4 The display panel 10 includes an organic material layer 4 located in the display area A3 and the hole edge area A2. The organic material layer 4 includes a plurality of first portions 40 located in the hole edge area A2, and the plurality of first portions 40 are arranged at intervals along a first direction U.

[0066] By patterning the portion of the organic material layer 4 located in the hole edge region A2, the organic material layer 4 is set as an "active weak layer". During the film peeling process, the separation and extension of the organic material layer 4 to the display area A3 can be prevented, thereby improving the connection strength of the organic material layer 4 in the display area A3. This can block or extend the water vapor intrusion path and improve the progressive hole black spot phenomenon.

[0067] In some embodiments, see Figure 4 The display substrate 1 includes a first surface P1 and a second surface P2 opposite to each other. The display panel 10 also includes a plurality of first isolation pillars 5 disposed on the first surface P1. The plurality of first isolation pillars 5 are located in the hole edge area A2 and are arranged at intervals along the first direction U.

[0068] See also Figure 4 An organic material layer 4 is stacked on the first surface P1 of the display substrate 1. At least a portion of the first part 40 of the organic material layer 4 is embedded between two adjacent first isolation pillars 5. The first part 40 and the two adjacent first isolation pillars 5 form an interlocking connection, which can increase the contact area and connection strength between the first part 40 and the first isolation pillars 5. The first part 40 is not easy to separate from the second insulating layer 33, thereby blocking the separation of the organic material layer 4 at the hole edge area A2, and basically maintaining the height difference between the first isolation pillar 5 and the second isolation pillar 7 area without further increasing.

[0069] For example, the shape of the orthographic projection of the first isolation pillar 5 on the display substrate 1 can be annular, and it surrounds the perforated area A1. It can be understood that the projection shape of the first isolation pillar 5 is annular, and an annular groove is formed between two adjacent first isolation pillars 5, and the first part 40, which is also annular, can be embedded in the annular groove.

[0070] In some embodiments, see Figure 4The display panel 10 also includes a barrier dam 6 and a plurality of second isolation pillars 7 disposed on the first surface P1, the barrier dam 6 and the plurality of second isolation pillars 7 being located within the hole edge area A2. Along the first direction U, the plurality of first isolation pillars 5, the barrier dam 6 and the plurality of second isolation pillars 7 are arranged sequentially, and the plurality of second isolation pillars 7 are arranged at intervals, with the plurality of first parts 40 located on the side of the barrier dam 6 away from the display area A3.

[0071] Understandably, the first isolation pillar 5 is closer to the perforation area A1 than the second isolation pillar 7; therefore, the first isolation pillar 5 is also called the "outer isolation pillar," and the second isolation pillar 7 is also called the "inner isolation pillar." The first isolation pillar 5 and the second isolation pillar 7 can hinder the transmission of tearing stress and prevent the separation and extension of the organic material layer 4 to the display area A3.

[0072] For example, the shapes of the orthographic projections of the blocking dam 6 and the second isolation pillar 7 on the display substrate 1 can both be annular, and both surround the perforated area A1.

[0073] In some embodiments, see Figure 4 The first inorganic encapsulation layer 21 covers multiple first isolation pillars 5, barrier dams 6 and multiple second isolation pillars 7. The organic encapsulation layer 22 is located on the side of the barrier dam 6 near the display area A3 and covers multiple second isolation pillars 7. The second inorganic encapsulation layer 23 covers multiple first isolation pillars 5, barrier dams 6 and multiple second isolation pillars 7.

[0074] It is understood that the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 are both prepared by chemical vapor deposition (CVD) process, and the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 fully cover the multiple first isolation pillars 5, the barrier dams 6 and the multiple second isolation pillars 7.

[0075] The organic encapsulation layer 22 is prepared using inkjet printing (IJP) technology. The specific steps are: first, ink is sprayed, and then the ink is dried to obtain a solid organic encapsulation layer 22. The barrier dam 6 serves to block the ink and prevent ink overflow from affecting the film quality of the organic encapsulation layer 22.

[0076] In some embodiments, see Figure 4 The first isolation pillar 5 includes a first isolation portion 51 and a second isolation portion 52, with the second isolation portion 52 disposed on the side of the first isolation portion 51 away from the display substrate 1. The first isolation portion 51 is located in the first source-drain conductive layer SD1, and the second isolation portion 52 is located in the second source-drain conductive layer SD2.

[0077] It is understandable that the first isolation pillar 5 has a double-layer metal structure, while the second isolation pillar 7 is located in the first source-drain conductive layer SD1 and has a single-layer metal structure. The first isolation pillar 5 is taller than the second isolation pillar 7. The height difference is increased by increasing the height of the first isolation pillar 5.

[0078] Based on this, during the process of forming the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 using chemical vapor deposition, the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 are easily broken at the first isolation post 5. In the subsequent film peeling process, even if the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 separate, the film separation will stop at the first isolation post 5 and will not extend to the display area A3. This has a blocking effect on progressive hole black spots and poor film separation in the process.

[0079] For example, see Figure 4 The first source-drain conductive layer SD1 includes a stacked titanium-aluminum-titanium layer, the second source-drain conductive layer SD2 includes a stacked aluminum-titanium layer, the first isolation portion 51 of the first isolation pillar 5 is located in the first source-drain conductive layer SD1, the first isolation portion 51 has a titanium-aluminum-titanium layer structure, the second isolation portion 52 is located in the second source-drain conductive layer SD2, the second isolation portion 52 has an aluminum-titanium layer structure, that is, the first isolation pillar 5 has a titanium-aluminum-titanium-aluminum-titanium layer structure.

[0080] For example, see Figure 4 The first isolation portion 51 has a titanium-aluminum-titanium layer structure, and the width of the aluminum layer along the X direction is smaller than the width of the titanium layer along the X direction. Therefore, the aluminum layer, the titanium layer above it, and the titanium layer below it form an "I" shape, that is, the cross-sectional shape of the first isolation portion 51 along the plane XZ is an "I" shape.

[0081] The second isolation portion 52 has an aluminum-titanium layer structure, and the width of the aluminum layer along the X direction is smaller than the width of the titanium layer along the X direction. Therefore, the aluminum layer and the titanium layer above it form a "T" shape, that is, the cross-sectional shape of the second isolation portion 52 along the plane XZ is a "T" shape.

[0082] The second isolation pillar 7 is located in the first source-drain conductive layer SD1, and the second isolation pillar 7 has a titanium-aluminum-titanium layer structure.

[0083] For example, see Figure 4 The second isolation column 7 has a titanium-aluminum-titanium layer structure, and the width of the aluminum layer along the X direction is smaller than the width of the titanium layer along the X direction. Therefore, the aluminum layer, the titanium layer above it, and the titanium layer below it form an "I" shape, that is, the cross-sectional shape of the second isolation column 7 along the plane XZ is an "I" shape.

[0084] In some embodiments, see Figure 4The display substrate 1 also includes an isolation groove 8, which extends from the first surface P1 into the display substrate 1. Along the first direction U, an isolation groove 8 is provided between at least two adjacent first isolation pillars 5. It can be understood that the vertical height from the top of the first isolation pillar 5 to the bottom of the isolation groove 8 increases compared to the vertical height from the top to the bottom of the first isolation pillar 5, that is, the height difference increases.

[0085] Based on this, during the formation of the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 using chemical vapor deposition, the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 are prone to break at the edge of the isolation trench 8. In the subsequent film peeling process, even if the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 separate, the film separation will stop at the edge of the isolation trench 8 and will not extend to the display area A3. The barrier dam 6 and the second isolation pillar 7 will not be damaged, and they will block progressive black spots and poor film separation in the process.

[0086] In some embodiments, see Figure 4 The display substrate 1 also includes an isolation pad layer 16 and an insulating layer 17 covering the isolation pad layer 16. The first isolation pillar 5 is disposed on the side of the insulating layer 17 away from the isolation pad layer 16, that is, the isolation pad layer 16 is disposed at the bottom of the first isolation pillar 5. The isolation pad layer 16 is used to further increase the height of the first isolation pillar 5 to increase the height difference, making it easier to break the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23 at the first isolation pillar 5 during the formation of the first inorganic encapsulation layer 21 and the second inorganic encapsulation layer 23.

[0087] See also Figure 4 The isolation groove 8 is disposed within the insulating layer 17, for example, by etching the insulating layer 17 to form the isolation groove 8 within the insulating layer 17.

[0088] For example, the isolation pad 16 includes a first pad 161 and a second pad 162, with the second pad 162 disposed on the side of the first pad 161 near the first isolation pillar 5. The first pad 161 is located in the first gate conductive layer Gate1, and the second pad 162 is located in the second gate conductive layer Gate2.

[0089] The insulating layer 17 includes a first inorganic insulating layer 171 and a second inorganic insulating layer 172. The first inorganic insulating layer 171 is disposed between the first pad 161 and the second pad 162, and the second inorganic insulating layer 172 is disposed between the second pad 162 and the first isolation post 5. The isolation groove 8 penetrates the first inorganic insulating layer 171 and the second inorganic insulating layer 172. For example, the isolation groove 8 is formed by etching the first inorganic insulating layer 171 and the second inorganic insulating layer 172.

[0090] Embodiments of this application also provide various display panels, which also have an FMLOC structure. Figures 5 to 18 Structural diagrams of various display panels provided in embodiments of this application, and Figure 4 The difference in the display panel is that the first insulating layer 31 and the second insulating layer 33 of the touch structure 3 are both replaced with organic materials instead of inorganic materials.

[0091] See Figure 5 The display panel includes multiple organic material layers 4, which may include, for example, a first insulating layer 31, a second insulating layer 33, and a third insulating layer 41. One of the organic material layers 4 is also located in the hole edge region A2. Considering that the organic material layer 4 is easily separated from the second inorganic encapsulation layer 23, the organic material layer 4 is partially patterned and disconnected in the hole edge region A2, which can hinder the transmission of tear stress and prevent the separation of the organic material layer 4 from extending to the display area A3.

[0092] For example, see Figure 5 The first insulating layer 31 can be patterned and broken in a portion of the hole edge region A2. See also Figure 6 Alternatively, the second insulating layer 33 can be patterned and broken in part of the hole edge region A2. See also Figure 7 Alternatively, the third insulating layer 41 can be patterned and broken in part of the hole edge area A2.

[0093] In some embodiments, see Figure 8 The display panel 10 includes multiple organic material layers 4, of which at least two organic material layers 4 are located in the hole edge region A2. Considering that the organic material layer 4 closest to the display substrate 1 is easily separated from the second inorganic encapsulation layer 23, the organic material layer 4 closest to the display substrate 1 includes multiple first portions 40 located in the hole edge region A2. Along the first direction U, the multiple first portions 40 are spaced apart. That is, in the hole edge region A2, the lowermost organic material layer 4 is patterned and broken, which can hinder the transmission of tear-off stress and prevent the separation of the lowermost organic material layer 4 from extending to the display area A3.

[0094] For example, see Figure 8 Two of the multiple organic material layers 4 are located in the hole edge region A2. These two organic material layers 4 can be a first insulating layer 31 and a third insulating layer 41. The first insulating layer 31 includes multiple first portions 40 located in the hole edge region A2. In the hole edge region A2, the first insulating layer 31 can be patterned and broken, and the third insulating layer 41 covers the multiple first portions 40 of the first insulating layer 31.

[0095] For example, see Figure 9The third insulating layer 41 includes a plurality of second portions 42 located in the hole edge region A2. Along the first direction U, the plurality of second portions 42 are arranged at intervals, meaning that the portion of the third insulating layer 41 in the hole edge region A2 is also patterned and broken. For example, in the hole edge region A2, the patterns of the first portion 40 of the first insulating layer 31 and the second portion 42 of the third insulating layer 41 are identical. Based on this, the same mask can be used to pattern the first insulating layer 31 and the third insulating layer 41.

[0096] For example, see Figure 10 Two of the multiple organic material layers 4 are located in the hole edge region A2. These two organic material layers 4 can be a first insulating layer 31 and a second insulating layer 33. The first insulating layer 31 includes multiple first portions 40 located in the hole edge region A2. In the hole edge region A2, the first insulating layer 31 can be patterned and broken, and the second insulating layer 33 covers the multiple first portions 40 of the first insulating layer 31.

[0097] For example, see Figure 11 The second insulating layer 33 includes a plurality of second portions 42 located in the hole edge region A2. These second portions 42 are spaced apart along the first direction U, meaning that the portion of the second insulating layer 33 in the hole edge region A2 is also patterned and broken. For example, in the hole edge region A2, the patterns of the first portion 40 of the first insulating layer 31 and the second portion 42 of the second insulating layer 33 are identical. Based on this, the same mask can be used to pattern the first insulating layer 31 and the second insulating layer 33.

[0098] For example, see Figure 12 Two of the multiple organic material layers 4 are located in the hole edge region A2. These two organic material layers 4 can be a second insulating layer 33 and a third insulating layer 41. The second insulating layer 33 includes multiple first portions 40 located in the hole edge region A2. In the hole edge region A2, the second insulating layer 33 can be patterned and broken, and the third insulating layer 41 covers the multiple first portions 40 of the second insulating layer 33.

[0099] For example, see Figure 13 The third insulating layer 41 includes a plurality of second portions 42 located in the hole edge region A2. Along the first direction U, the plurality of second portions 42 are spaced apart, meaning that the portion of the third insulating layer 41 in the hole edge region A2 is also patterned and broken. For example, in the hole edge region A2, the patterns of the first portion 40 of the second insulating layer 33 and the second portion 42 of the third insulating layer 41 are identical. Based on this, the same mask can be used to pattern the second insulating layer 33 and the third insulating layer 41.

[0100] In some embodiments, see Figure 14Two of the multiple organic material layers 4 are located in the hole edge region A2. These two organic material layers 4 can be a first insulating layer 31 and a second insulating layer 33. The first insulating layer 31 includes multiple first portions 40 located in the hole edge region A2, and the second insulating layer 33 includes multiple second portions 42 located in the hole edge region A2. Along the first direction U, the multiple first portions 40 are arranged at intervals, and the multiple second portions 42 are also arranged at intervals. At least a portion of the second portion 42 is embedded between two adjacent first portions 40. The multiple second portions 42 and the multiple first portions 40 form a nested structure. The second portion 42 and the two adjacent first portions 40 form an interlocking connection, which can increase the contact area and connection strength between the second portion 42 and the first portion 40. The second portion 42 is not easy to separate from the first portion 40, thereby blocking the separation of the second insulating layer 33 from the first insulating layer 31 in the hole edge region A2.

[0101] It is understandable that two of the multiple organic material layers 4 are located in the hole edge region A2. These two organic material layers 4 can also be the first insulating layer 31 and the third insulating layer 41, and the first insulating layer 31 and the third insulating layer 41 form a nested structure in the hole edge region A2.

[0102] Alternatively, the second insulating layer 33 and the third insulating layer 41 are located in the hole edge region A2, and the second insulating layer 33 and the third insulating layer 41 form a nested structure in the hole edge region A2.

[0103] In some embodiments, see Figure 15 The display panel 10 includes three organic material layers 4: a first insulating layer 31, a second insulating layer 33, and a third insulating layer 41. All three organic material layers 4 are located in the hole edge region A2. Considering that the bottommost first insulating layer 31 is easily separated from the second inorganic encapsulation layer 23, the first insulating layer 31 is provided to include multiple first portions 40 located in the hole edge region A2. That is, the first insulating layer 31 is patterned and broken in the hole edge region A2, which can hinder the transmission of tear stress and prevent the separation of the first insulating layer 31 from extending to the display area A3.

[0104] In the hole edge region A2, the second insulating layer 33 and the third insulating layer 41 both cover multiple first portions 40 of the first insulating layer 31.

[0105] For example, see Figure 15 The second insulating layer 33 includes a plurality of second portions 42 located in the hole edge region A2, and the third insulating layer 41 includes a plurality of third portions 43 located in the hole edge region A2. That is, the portions of the first insulating layer 31, the second insulating layer 33, and the third insulating layer 41 in the hole edge region A2 are all patterned and broken. In the hole edge region A2, the second portions 42 of the second insulating layer 33 and the third portions 43 of the third insulating layer 41 both cover the first portions 40 of the first insulating layer 31.

[0106] For example, in the hole edge region A2, the first part 40 of the first insulating layer 31, the second part 42 of the second insulating layer 33, and the third part 43 of the third insulating layer 41 have the same pattern. Based on this, the first insulating layer 31, the second insulating layer 33, and the third insulating layer 41 can be patterned using the same mask.

[0107] In some embodiments, see Figure 16 The display panel 10 includes three organic material layers 4: a first insulating layer 31, a second insulating layer 33, and a third insulating layer 41. All three organic material layers 4 are located in the hole edge area A2.

[0108] The first insulating layer 31 includes a plurality of first portions 40 located in the hole edge region A2, the second insulating layer 33 includes a plurality of second portions 42 located in the hole edge region A2, and the third insulating layer 41 includes a plurality of third portions 43 located in the hole edge region A2. Along the first direction U, the plurality of first portions 40 are arranged at intervals, the plurality of second portions 42 are arranged at intervals, and the plurality of third portions 43 are also arranged at intervals. At least a portion of the second portion 42 is embedded between two adjacent first portions 40, and at least a portion of the third portion 43 is embedded between two adjacent second portions 42. The plurality of second portions 42 and the plurality of first portions 40 form a nested structure, and the plurality of third portions 43 and the plurality of second portions 42 form a nested structure. The plurality of first portions 40, the plurality of second portions 42, and the plurality of third portions 43 are nested layer by layer and "interlocked" together, thereby blocking the separation of the first insulating layer 31, the second insulating layer 33, and the third insulating layer 41 in the hole edge region A2.

[0109] In some embodiments, see Figure 17 The first insulating layer 31, the second insulating layer 33, and the third insulating layer 41 are all located in the hole edge region A2. Considering that the bottommost first insulating layer 31 is easily separated from the second inorganic encapsulation layer 23, the first insulating layer 31 is provided to include multiple first portions 40 located in the hole edge region A2. That is, the first insulating layer 31 is patterned and broken in the hole edge region A2, which can hinder the transmission of tear stress and prevent the separation of the first insulating layer 31 from extending to the display area A3.

[0110] In the hole edge region A2, the second insulating layer 33 and the third insulating layer 41 both cover multiple first portions 40 of the first insulating layer 31.

[0111] For example, see Figure 17 The second insulating layer 33 includes a plurality of second portions 42 located in the hole edge region A2, that is, the portions of the first insulating layer 31 and the second insulating layer 33 in the hole edge region A2 are both patterned and broken, and the third insulating layer 41 is fully covered and is not patterned.

[0112] For example, in the hole edge region A2, the first part 40 of the first insulating layer 31 and the second part 42 of the second insulating layer 33 have the same pattern. Based on this, the same mask can be used to pattern the first insulating layer 31 and the second insulating layer 33.

[0113] In some embodiments, see Figure 18 The first insulating layer 31, the second insulating layer 33, and the third insulating layer 41 are all located in the hole edge region A2. Considering that the bottommost first insulating layer 31 is easily separated from the second inorganic encapsulation layer 23, the first insulating layer 31 is provided to include multiple first portions 40 located in the hole edge region A2. That is, the first insulating layer 31 is patterned and broken in the hole edge region A2, which can hinder the transmission of tear stress and prevent the separation of the first insulating layer 31 from extending to the display area A3.

[0114] In the hole edge region A2, the second insulating layer 33 and the third insulating layer 41 both cover multiple first portions 40 of the first insulating layer 31.

[0115] For example, see Figure 18 In the hole edge area A2, both the second insulating layer 33 and the third insulating layer 41 are fully covered, and the second insulating layer 33 and the third insulating layer 41 are not patterned.

[0116] Embodiments of this application also provide a variety of display panels, which have a Color Filter On Encapsulation (COE) structure, i.e., a color filter structure is formed on the encapsulation layer 2. Figures 19-23 Structural diagrams of various display panels provided in embodiments of this application.

[0117] See Figure 19 In display area A3, display panel 10 includes display substrate 1, encapsulation layer 2 covering display substrate 1, touch structure 3 disposed on the side of encapsulation layer 2 away from display substrate 1, and color filter structure 9 disposed on the side of touch structure 3 away from display substrate 1. The encapsulation layer 2 includes a first inorganic encapsulation layer 21, an organic encapsulation layer 22, and a second inorganic encapsulation layer 23 stacked sequentially. The touch structure 3 includes a first insulating layer 31, a first touch electrode layer 32, a second insulating layer 33, and a second touch electrode layer 34 stacked sequentially. The color filter structure 9 includes a first organic material layer 91, a black matrix layer 92, multiple color resist layers 93, and a second organic material layer 94 stacked sequentially.

[0118] See Figure 20The display panel 10 includes a plurality of organic material layers 4. The plurality of organic material layers 4 may include, for example, a first organic material layer 91, a black matrix layer 92 and a second organic material layer 94. At least one of the first organic material layer 91, the black matrix layer 92 and the second organic material layer 94 is also located in the hole edge area A2. The organic material layer 4 includes a plurality of first portions 40 located in the hole edge area A2. The plurality of first portions 40 are arranged at intervals along a first direction U from the hole area A1 to the display area A3.

[0119] In the first direction U, the organic material layer 4 is discontinuous in the hole edge region A2. The organic material layer 4 is set as an "active weak layer". In this way, even if the stress of tearing the film causes the first part 40 to separate in the hole edge region A2, the separation force will not be transmitted to the display area A3. This can prevent the separation of the organic material layer 4 from extending to the display area A3, improve the connection strength of the organic material layer 4 in the display area A3, thereby blocking or extending the water vapor intrusion path and improving the progressive hole black spot phenomenon.

[0120] For example, see Figure 20 Both the first organic material layer 91 and the black matrix layer 92 are located in the hole edge area A2. Considering that the bottommost first organic material layer 91 is easily separated from the second insulating layer 33, the first organic material layer 91 is patterned and broken in part of the hole edge area A2. This can hinder the transmission of tearing stress and prevent the separation of the first organic material layer 91 from extending to the display area A3.

[0121] For example, see Figure 20 Both the first organic material layer 91 and the black matrix layer 92 are located in the hole edge region A2. The first organic material layer 91 includes a plurality of first parts 40 located in the hole edge region A2, and the black matrix layer 92 includes a plurality of second parts 42 located in the hole edge region A2. Along the first direction U, the plurality of first parts 40 are arranged at intervals, and the plurality of second parts 42 are also arranged at intervals. At least a portion of the second part 42 is embedded between two adjacent first parts 40. The plurality of second parts 42 and the plurality of first parts 40 form a nested structure. The second part 42 and the two adjacent first parts 40 form an interlocking connection relationship, which can increase the contact area and connection strength between the second part 42 and the first part 40. The second part 42 is not easy to separate from the first part 40, thereby blocking the separation of the first organic material layer 91 and the black matrix layer 92 in the hole edge region A2.

[0122] In some embodiments, see Figure 21 Both the first organic material layer 91 and the second organic material layer 94 are located in the hole edge area A2. Considering that the bottommost first organic material layer 91 is easily separated from the second insulating layer 33, the first organic material layer 91 is patterned and broken in part of the hole edge area A2. This can hinder the transmission of tearing stress and prevent the separation of the first organic material layer 91 from extending to the display area A3.

[0123] For example, see Figure 21 The first organic material layer 91 includes a plurality of first portions 40 located in the hole edge region A2, and the second organic material layer 94 includes a plurality of second portions 42 located in the hole edge region A2. Along the first direction U, the plurality of first portions 40 are arranged at intervals, and the plurality of second portions 42 are also arranged at intervals. At least a portion of the second portion 42 is embedded between two adjacent first portions 40. The plurality of second portions 42 and the plurality of first portions 40 form a nested structure. The second portion 42 and the two adjacent first portions 40 form an interlocking connection relationship, which can increase the contact area and connection strength between the second portion 42 and the first portion 40. The second portion 42 is not easy to separate from the first portion 40, thereby blocking the separation of the first organic material layer 91 and the second organic material layer 94 in the hole edge region A2.

[0124] In some embodiments, see Figure 22 Both the black matrix layer 92 and the second organic material layer 94 are located in the hole edge area A2. Considering that the bottommost black matrix layer 92 is easily separated from the second insulating layer 33, the black matrix layer 92 is partially patterned and broken in the hole edge area A2. This can hinder the transmission of tearing stress and prevent the separation of the black matrix layer 92 from extending to the display area A3.

[0125] For example, see Figure 22 The black matrix layer 92 includes a plurality of first parts 40 located in the hole edge region A2, and the second organic material layer 94 includes a plurality of second parts 42 located in the hole edge region A2. Along the first direction U, the plurality of first parts 40 are arranged at intervals, and the plurality of second parts 42 are also arranged at intervals. At least a portion of the second part 42 is embedded between two adjacent first parts 40. The plurality of second parts 42 and the plurality of first parts 40 form a nested structure. The second part 42 and the two adjacent first parts 40 form an interlocking connection relationship, which can increase the contact area and connection strength between the second part 42 and the first part 40. The second part 42 is not easy to separate from the first part 40, thereby blocking the separation of the black matrix layer 92 and the second organic material layer 94 in the hole edge region A2.

[0126] In some embodiments, see Figure 23 The first organic material layer 91, the black matrix layer 92, and the second organic material layer 94 are all located in the hole edge area A2. Considering that the bottommost first organic material layer 91 is easily separated from the second insulating layer 33, the first organic material layer 91 is patterned and broken in part of the hole edge area A2. This can hinder the transmission of tearing stress and prevent the separation of the first organic material layer 91 from extending to the display area A3.

[0127] For example, see Figure 23The first organic material layer 91 includes a plurality of first parts 40 located in the hole edge region A2, and the black matrix layer 92 includes a plurality of second parts 42 located in the hole edge region A2. Along the first direction U, the plurality of first parts 40 are arranged at intervals, and the plurality of second parts 42 are also arranged at intervals. At least a portion of the second part 42 is embedded between two adjacent first parts 40. The plurality of second parts 42 and the plurality of first parts 40 form a nested structure. The second part 42 and the two adjacent first parts 40 form an interlocking connection relationship, which can increase the contact area and connection strength between the second part 42 and the first part 40. The second part 42 is not easy to separate from the first part 40, thereby blocking the separation of the first organic material layer 91 and the black matrix layer 92 in the hole edge region A2.

[0128] In the hole edge region A2, the second organic material layer 94 is fully covered and is not patterned.

[0129] Embodiments of this application also provide various display panels, which have an Efficiency Enhancement Structure (EES) structure. Figures 24-27 Structural diagrams of various display panels provided in embodiments of this application.

[0130] See Figure 24 In the display area A3, the display panel 10 includes a display substrate 1, an encapsulation layer 2 covering the display substrate 1, a touch structure 3 disposed on the side of the encapsulation layer 2 away from the display substrate 1, and a light emission enhancement structure 11 disposed on the side of the touch structure 3 away from the display substrate 1.

[0131] The light-enhancing structure 11 includes multiple first refractive index layer structures 12 and second refractive index layer structures 13. The orthographic projection of the first refractive index layer structure 12 on the display substrate 1 at least partially overlaps with the area where the pixel defining layer 1a is located; that is, in the Z direction, the first refractive index layer structure 12 and the pixel defining layer 1a are positioned opposite each other. The second refractive index layer structure 13 covers the multiple first refractive index layer structures 12, and the refractive index of the first refractive index layer structure 12 is less than the refractive index of the second refractive index layer structure 13. The combination of the first refractive index layer structure 12 and the second refractive index layer structure 13 can enhance the light emission of the display panel 10.

[0132] Understandably, the first refractive index layer structure 12 covers the second touch electrode layer 34, serving to protect the second touch electrode layer 34 and provide insulation.

[0133] See Figure 25 and Figure 26The display panel 10 includes a plurality of organic material layers 4, including a first organic material layer 14 containing a first refractive index layer structure 12 and a second organic material layer 15 containing a second refractive index layer structure 13. At least one of the first organic material layer 14 and the second organic material layer 15 is also located in the hole edge region A2. The organic material layer 4 includes a plurality of first portions 40 located in the hole edge region A2. The plurality of first portions 40 are arranged at intervals along a first direction U from the hole area A1 to the display area A3.

[0134] In the first direction U, the organic material layer 4 is discontinuous in the hole edge region A2. The organic material layer 4 is set as an "active weak layer". In this way, even if the stress of tearing the film causes the first part 40 to separate in the hole edge region A2, the separation force will not be transmitted to the display area A3. This can prevent the separation of the organic material layer 4 from extending to the display area A3, improve the connection strength of the organic material layer 4 in the display area A3, thereby blocking or extending the water vapor intrusion path and improving the progressive hole black spot phenomenon.

[0135] For example, see Figure 26 The first organic material layer 14 and the second organic material layer 15 are both located in the hole edge area A2. Considering that the bottommost first organic material layer 14 is easily separated from the second insulating layer 33, the first organic material layer 14 is patterned and broken in part of the hole edge area A2. This can hinder the transmission of tearing stress and prevent the separation of the first organic material layer 14 from extending to the display area A3.

[0136] For example, see Figure 26 The first organic material layer 14 and the second organic material layer 15 are both located in the hole edge region A2. The first organic material layer 14 includes a plurality of first parts 40 located in the hole edge region A2, and the second organic material layer 15 includes a plurality of second parts 42 located in the hole edge region A2. Along the first direction U, the plurality of first parts 40 are arranged at intervals, and the plurality of second parts 42 are also arranged at intervals. At least a portion of the second part 42 is embedded between two adjacent first parts 40. The plurality of second parts 42 and the plurality of first parts 40 form a nested structure. The second part 42 and the two adjacent first parts 40 form an interlocking connection relationship, which can increase the contact area and connection strength between the second part 42 and the first part 40. The second part 42 is not easy to separate from the first part 40, thereby blocking the separation of the first organic material layer 14 and the second organic material layer 15 in the hole edge region A2.

[0137] In some embodiments, see Figure 25 The first part 40 has a ring-shaped orthographic projection on the display substrate 1, and the second part 42 also has a ring-shaped orthographic projection on the display substrate 1. This can prevent the separation force from being transmitted to the display area A3 in any direction along 360°, and better prevent the separation of the first organic material layer 14 and the second organic material layer 15 from extending to the display area A3.

[0138] In some embodiments, see Figure 27 The first part 40 has a ring-shaped orthographic projection on the display substrate 1, which can prevent the separation force from being transmitted to the display area A3 in any 360° direction. The second part 42 includes a plurality of patterns 420, which surround the perforated area A1 and are spaced apart. The second part 42 is discontinuous along the circumference of the perforated area A1, which can prevent the separation force from being transmitted along the circumference of the perforated area A1, thereby better preventing the separation of the first organic material layer 14 and the second organic material layer 15 from extending to the display area A3.

[0139] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, It includes a cutout area, a hole edge area surrounding the cutout area, and a display area located outside the hole edge area; The display panel includes: Display substrate; An encapsulation layer is disposed on the display substrate; An organic material layer is stacked on the side of the encapsulation layer away from the display substrate, and at least a portion of the organic material layer is located in the display area; at least one portion of the organic material layer is also located in the hole edge area, and at least one organic material layer includes a plurality of first portions located in the hole edge area along a first direction from the hole area to the display area, and the plurality of first portions are spaced apart.

2. The display panel according to claim 1, characterized in that, The display panel includes a plurality of organic material layers, and at least two of the organic material layers are located in the hole edge area; Of the at least two organic material layers, the organic material layer closest to the display substrate includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

3. The display panel according to claim 1 or 2, characterized in that, The display substrate includes a first surface and a second surface opposite to each other, and the organic material layer is stacked on the first surface; The display panel further includes a plurality of first isolation pillars disposed on the first surface, the plurality of first isolation pillars being located within the hole edge area; Along the first direction, the plurality of first isolation columns are arranged at intervals; At least a portion of the first part is embedded between two adjacent first isolation pillars.

4. The display panel according to claim 1, characterized in that, The display panel includes a plurality of organic material layers, the plurality of organic material layers including a first organic material layer and a second organic material layer stacked sequentially, the first organic material layer and the second organic material layer also being located in the hole edge area; The first organic material layer includes a plurality of first portions located in the hole edge region, and the second organic material layer includes a plurality of second portions located in the hole edge region; Along the first direction, the plurality of second parts are arranged at intervals, and at least part of the second part is embedded between two adjacent first parts.

5. The display panel according to claim 4, characterized in that, The shape of the orthographic projection of the first part onto the display substrate is annular; The second part has a ring-shaped orthographic projection on the display substrate; or, the second part includes a plurality of patterns surrounding the cutout area and the plurality of patterns are spaced apart.

6. The display panel according to claim 3, characterized in that, The display panel further includes a touch structure disposed on the side of the encapsulation layer away from the display substrate, and the display panel includes one of the organic material layers, and one of the organic material layers is disposed on the side of the touch structure away from the display substrate; The organic material layer is located in the display area and the hole edge area. The organic material layer includes a plurality of first portions located in the hole edge area, and the plurality of first portions are arranged at intervals along the first direction.

7. The display panel according to claim 3, characterized in that, The display panel includes a plurality of organic material layers, the plurality of organic material layers including a first organic material layer, a second organic material layer and a third organic material layer stacked sequentially; The display panel further includes a touch structure disposed on the side of the encapsulation layer away from the display substrate. The touch structure includes a first organic material layer, a first touch electrode layer, a second organic material layer, and a second touch electrode layer stacked sequentially. The third organic material layer is disposed on the side of the second touch electrode layer away from the display substrate. At least one of the first organic material layer, the second organic material layer, and the third organic material layer is also located in the hole edge region. The at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

8. The display panel according to claim 7, characterized in that, The first organic material layer is located in the display area and the hole edge area, and the second organic material layer and the third organic material layer are at least partially located in the display area; The first organic material layer includes a plurality of first portions located in the pore edge region, and the plurality of first portions are spaced apart along the first direction.

9. The display panel according to claim 8, characterized in that, The third organic material layer is located in the display area and the hole edge area, and in the hole edge area, the third organic material layer covers the plurality of first parts; or, The second organic material layer is located in the display area and the hole edge area, and the third organic material layer is located in the display area and the hole edge area. In the hole edge area, both the second organic material layer and the third organic material layer cover the plurality of first parts.

10. The display panel according to claim 3, characterized in that, The display panel further includes a touch structure disposed on the side of the encapsulation layer away from the display substrate. The display panel includes a plurality of organic material layers, and the plurality of organic material layers include a first organic material layer, a black matrix layer and a second organic material layer sequentially stacked on the side of the touch structure away from the display substrate. The display panel further includes a color filter structure disposed in the display area, the color filter structure including a first organic material layer, the black matrix layer, a plurality of color resist layers and a second organic material layer stacked on the display substrate; At least one of the first organic material layer, the black matrix layer, and the second organic material layer is also located in the hole edge region. The at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

11. The display panel according to claim 10, characterized in that, The first organic material layer and the black matrix layer are located in the display area and the hole edge area, and the second organic material layer is at least partially located in the display area; The first organic material layer includes a plurality of first portions located in the pore edge region, and the black matrix layer includes a plurality of second portions located in the pore edge region; Along the first direction, the plurality of second parts are arranged at intervals, and at least part of the second part is embedded between two adjacent first parts.

12. The display panel according to claim 3, characterized in that, The display panel includes a plurality of organic material layers, and the plurality of organic material layers include a first organic material layer and a second organic material layer stacked on the side of the encapsulation layer away from the display substrate; The display substrate further includes a pixel defining layer disposed in the display area; the display panel further includes a light emission enhancement structure, the light emission enhancement structure includes a plurality of first refractive index layer structures located in the first organic material layer, and a second refractive index layer structure located in the second organic material layer, wherein the orthographic projection of the first refractive index layer structure on the display substrate at least partially overlaps with the area where the pixel defining layer is located. The second refractive index layer structure covers the plurality of first refractive index layer structures, and the refractive index of the first refractive index layer structure is less than the refractive index of the second refractive index layer structure; At least one of the first organic material layer and the second organic material layer is also located in the hole edge region, and the at least one organic material layer includes a plurality of first portions located in the hole edge region, and the plurality of first portions are spaced apart along the first direction.

13. The display panel according to claim 12, characterized in that, The first organic material layer and the second organic material layer are located in the display area and the hole edge area; The first organic material layer includes a plurality of first portions located in the hole edge region, and the second organic material layer includes a plurality of second portions located in the hole edge region; Along the first direction, the plurality of second parts are arranged at intervals, and at least part of the second part is embedded between two adjacent first parts.

14. The display panel according to claim 3, characterized in that, The display panel further includes a plurality of second isolation pillars and a barrier dam disposed on the first surface, wherein the plurality of second isolation pillars and the barrier dam are all located within the hole edge area; Along the first direction, the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars are arranged in sequence, with the plurality of first parts located on the side of the barrier dam away from the display area.

15. The display panel according to claim 14, characterized in that, The encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked sequentially, wherein the first inorganic encapsulation layer covers the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars; The organic encapsulation layer is located on the side of the barrier dam closer to the display area, and the organic encapsulation layer covers the plurality of second isolation pillars; The second inorganic encapsulation layer covers the plurality of first isolation pillars, the barrier dam, and the plurality of second isolation pillars.

16. The display panel according to claim 3, characterized in that, The first isolation pillar includes a first isolation portion and a second isolation portion, wherein the second isolation portion is disposed on the side of the first isolation portion away from the display substrate; The display panel further includes a first source-drain conductive layer and a second source-drain conductive layer that are sequentially stacked on the display substrate, wherein the first isolation portion is located in the first source-drain conductive layer and the second isolation portion is located in the second source-drain conductive layer.

17. The display panel according to claim 3, characterized in that, The display substrate further includes an isolation groove that extends from the first surface into the display substrate. Along the first direction, at least two adjacent first isolation columns are provided with the isolation groove.

18. The display panel according to claim 17, characterized in that, The display substrate further includes an isolation pad layer and an insulating layer covering the isolation pad layer, wherein the first isolation post is disposed on the side of the insulating layer away from the isolation pad layer; The isolation groove is disposed within the insulating layer.

19. The display panel according to claim 18, characterized in that, The isolation pad includes a first pad and a second pad, wherein the second pad is disposed on the side of the first pad near the first isolation post; The display substrate further includes a first gate conductive layer and a second gate conductive layer stacked sequentially, with the first pad layer located in the first gate conductive layer and the second pad layer located in the second gate conductive layer; The insulating layer includes a first inorganic insulating layer and a second inorganic insulating layer. The first inorganic insulating layer is disposed between the first pad and the second pad, and the second inorganic insulating layer is disposed between the second pad and the first isolation column. The isolation groove penetrates through the first inorganic insulating layer and the second inorganic insulating layer.

20. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 19; The controller is electrically connected to the display panel.

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