Display panel, preparation method of display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a display area and a non-display area, and the display panel comprises a substrate; the first organic layer is positioned on one side of the substrate; the inorganic layer is positioned on one side, far away from the substrate, of the first organic layer, and a via hole for exposing at least part of the first organic layer is formed in the inorganic layer; the isolation structure is located on the side, away from the substrate, of the inorganic layer, the isolation structure extends to the non-display area from the display area, and the orthographic projection, on the substrate, of the via hole is located outside the orthographic projection, on the substrate, of the isolation structure. According to the display panel, the through hole for exposing at least part of the first organic layer is formed in the inorganic layer, so that a release path of gas in the screen body can be increased on the inorganic layer, the gas in the screen body can be discharged more conveniently, and the reliability of the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and more particularly, to a display panel, a method for manufacturing the display panel, and an electronic device. Background Art

[0002] Flat panel display devices based on technologies such as Organic Light Emitting Diode (OLED) and Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers due to their advantages of high image quality, power saving, thin body, and wide application range, and have become the mainstream in display panels.

[0003] However, in the related art, the reliability of the display panel is not good enough. Summary of the Invention

[0004] To overcome the technical problems mentioned in the above technical background, an embodiment of this application provides a display panel. The display panel includes a display area and a non-display area. The non-display area includes a first border area. The display panel includes:

[0005] A substrate;

[0006] A first organic layer located on one side of the substrate;

[0007] An inorganic layer located on the side of the first organic layer away from the substrate. A via is formed in the inorganic layer to expose at least a part of the first organic layer and is located in the first border area;

[0008] An isolation structure located on the side of the inorganic layer away from the substrate. The isolation structure extends from the display area to the non-display area, and the orthographic projection of the via on the substrate is located outside the orthographic projection of the isolation structure on the substrate.

[0009] In some possible implementation manners, the number of the vias is multiple;

[0010] Preferably, the multiple vias are evenly arranged;

[0011] Preferably, the shape of the orthographic projection of the via on the substrate is at least one of a rhombus, a circle, or a square;

[0012] Preferably, the first border area includes a first border sub-area and a second border sub-area that are located on both sides of the display area and are oppositely arranged along a first direction;

[0013] Preferably, the display panel further includes a scan line, and the first direction is the direction in which the scan line extends in the display area;

[0014] Preferably, the non-display area further includes a second border area, the second border area includes a bonding area, and the first border area further includes a third border sub-area located on a side of the display area away from the second border area;

[0015] Preferably, the second border area and the third border sub-area are arranged along a second direction;

[0016] Preferably, the second direction intersects with the first direction;

[0017] Preferably, the second direction is perpendicular to the first direction;

[0018] Preferably, a positive projection of the via hole on the substrate is located on a side of a positive projection of the isolation structure on the substrate away from the display area;

[0019] Preferably, at least a part of the non-display area surrounds the display area.

[0020] In some possible implementation manners, the display panel further includes a dam structure located in the non-display area, the non-display area further includes a shielding area, and the dam structure is located on a side of the shielding area away from the display area;

[0021] Preferably, a density of the via holes located in the shielding area is less than a density of the via holes on a side close to the dam structure;

[0022] Preferably, the via holes in the shielding area are uniformly arranged;

[0023] Preferably, along a direction from a side of the shielding area close to the dam structure to the dam structure, the via holes are uniformly arranged;

[0024] Preferably, along a direction from the shielding area to the dam structure, a density of the via holes gradually increases.

[0025] In some possible implementation manners, a diameter of the via holes located in the shielding area is less than a diameter of the via holes on a side close to the dam structure;

[0026] Preferably, along a direction from the shielding area to the dam structure, a diameter of the via holes gradually increases;

[0027] Preferably, a distance between adjacent via holes located in the shielding area is greater than a distance between adjacent via holes on a side close to the dam structure;

[0028] Preferably, along a direction from the shielding area to the dam structure, a distance between adjacent via holes gradually decreases;

[0029] Preferably, the diameter of the orthographic projection of the via on the substrate on the side close to the substrate ranges from 10 μm to 20 μm;

[0030] Preferably, the spacing between adjacent vias ranges from 3 μm to 10 μm.

[0031] In some possible embodiments, a shielding layer is disposed in the shielding region on the side of the inorganic layer close to the substrate. The shielding layer includes a plurality of shielding traces. The display panel further includes a touch layer on the side of the isolation structure away from the substrate. The touch layer includes a plurality of touch electrodes, and the orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the shielding traces on the substrate.

[0032] In some possible embodiments, the orthographic projection of the via on the substrate is located outside the orthographic projection of the shielding trace on the substrate;

[0033] Preferably, in the shielding region, the orthographic projection of the via on the substrate is located between the orthographic projections of two adjacent shielding traces on the substrate.

[0034] In some possible embodiments, the display panel includes a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer stacked in sequence in a direction away from the substrate. The fourth metal layer includes the shielding layer;

[0035] Preferably, the display panel further includes a second organic layer on the side of the shielding layer close to the substrate;

[0036] Preferably, the display panel further includes a first planarization layer between the third metal layer and the fourth metal layer. The second organic layer includes the first planarization layer;

[0037] Preferably, the display panel further includes a second planarization layer on the side of the fourth metal layer away from the substrate. The first organic layer includes the second planarization layer.

[0038] In some possible embodiments, the display panel includes a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, and a first electrode layer stacked in sequence in a direction away from the substrate. The first electrode layer includes the shielding layer;

[0039] Preferably, the first electrode layer is located between the first organic layer and the inorganic layer;

[0040] Preferably, the first electrode includes an anode.

[0041] In some possible embodiments, the non-display area further includes a driving circuit area located between the display area and the shielding area, and driving circuit traces are provided in the driving circuit area;

[0042] Preferably, the driving circuit traces include scan control traces and light emission control traces.

[0043] In some possible embodiments, the display panel further includes a first electrode layer, a light-emitting layer, and a second electrode layer that are sequentially stacked in a direction away from the substrate. The first electrode layer includes a first electrode, the second electrode layer includes a second electrode, the isolation structure is provided with an isolation opening, the isolation opening is located in the display area, and the second electrode is located within the isolation opening and is electrically connected to the isolation structure;

[0044] Preferably, in the display area, the orthographic projection of the isolation structure on the substrate is in a mesh structure;

[0045] Preferably, the light-emitting layer includes a light-emitting portion, and the light-emitting portion is located within the isolation opening;

[0046] Preferably, the display panel further includes a pixel definition layer located on a side of the first electrode layer away from the substrate. The pixel definition layer includes a pixel opening exposing the first electrode. The orthographic projection of the isolation structure on the substrate is located between the orthographic projections of two adjacent pixel openings on the substrate, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate;

[0047] Preferably, the inorganic layer includes the pixel definition layer.

[0048] In some possible embodiments, the display panel further includes a first inorganic encapsulation layer located on a side of the second electrode layer away from the substrate. The first inorganic encapsulation layer includes a plurality of encapsulation units, and the encapsulation units extend from a side surface of the isolation structure to a side of the isolation structure away from the substrate;

[0049] Preferably, the display panel further includes an organic encapsulation layer located on a side of the first inorganic encapsulation layer away from the substrate. The organic encapsulation layer extends from the display area to the non-display area and fills the vias;

[0050] Preferably, the display panel further includes a second inorganic encapsulation layer located on a side of the organic encapsulation layer away from the substrate. The second inorganic encapsulation layer extends from the display area to the non-display area.

[0051] In some possible embodiments, the isolation structure includes a first isolation portion and a second isolation portion that are sequentially stacked in a direction away from the substrate, and a positive projection of the first isolation portion on the substrate is located within a positive projection of the second isolation portion on the substrate.

[0052] In some possible embodiments, the second electrode is electrically connected to the first isolation portion; and / or the isolation structure further includes a third isolation portion located on a side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion;

[0053] Preferably, the material of the third isolation portion includes molybdenum metal; and / or the material of the first isolation portion includes aluminum metal; and / or the material of the second isolation portion includes titanium metal.

[0054] In some possible embodiments, the present application further provides a method for manufacturing a display panel. The display panel includes a display area and a non-display area, and the non-display area includes a first border area. The display panel includes:

[0055] Providing a substrate;

[0056] Forming a first organic layer on one side of the substrate;

[0057] Forming an inorganic layer on a side of the first organic layer away from the substrate, and forming a via on the inorganic layer that exposes at least a part of the first organic layer and is located in the first border area;

[0058] Forming an isolation structure on a side of the inorganic layer away from the substrate. The isolation structure extends from the display area to the non-display area, and a positive projection of the via on the substrate is located outside a positive projection of the isolation structure on the substrate.

[0059] In some possible embodiments, the present application further provides an electronic device, and the electronic device includes the display panel described in the present application.

[0060] Compared with the prior art, the present application has the following beneficial effects:

[0061] A display panel, a method for manufacturing a display panel, and an electronic device provided by the present application can increase a release path of gas inside the screen on the inorganic layer by forming a via that exposes at least a part of the first organic layer on the inorganic layer, so that it is more convenient to discharge the gas inside the screen, and further improve the reliability of the display panel. Description of the Drawings

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 A schematic cross-sectional view of a display panel in the related art provided by an embodiment of the present application;

[0064] Figure 2 A schematic cross-sectional view of a display panel provided in an embodiment of the present application;

[0065] Figure 3 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application including a shielding layer;

[0066] Figure 4 A schematic top view of a display panel provided in an embodiment of the present application;

[0067] Figure 5 One of the top view schematic diagrams of the via hole on the substrate provided in the embodiment of the present application;

[0068] Figure 6 A second schematic top view of a via hole on a substrate provided in an embodiment of the present application;

[0069] Figure 7 A third top view schematic diagram of a via hole on a substrate provided in an embodiment of the present application;

[0070] Figure 8 A schematic cross-sectional view of a shielding layer provided in an embodiment of the present application when the shielding layer is located on the fourth metal layer;

[0071] Figure 9 A cross-sectional schematic diagram of a display area of ​​a display panel provided in an embodiment of the present application including four metal layers;

[0072] Figure 10 A schematic cross-sectional view of a shielding layer provided in an embodiment of the present application when located at the anode layer;

[0073] Figure 11 A cross-sectional schematic diagram of a display area of ​​a display panel provided in an embodiment of the present application including an anode layer;

[0074] Figure 12 A schematic cross-sectional view of a display area when the isolation structure provided in an embodiment of the present application separates the second electrode layer;

[0075] Figure 13 A schematic top view of an isolation structure provided in an embodiment of the present application, in which the orthographic projection of the isolation structure on the substrate is a mesh structure;

[0076] Figure 14 A cross-sectional view of the display area when the isolation structure provided by the embodiment of the present application partitions the first inorganic encapsulation layer;

[0077] Figure 15 A cross-sectional view of the display area of the display panel provided by the embodiment of the present application when including an organic encapsulation layer;

[0078] Figure 16 A cross-sectional view of the organic encapsulation layer extending to the non-display area provided by the embodiment of the present application;

[0079] Figure 17 A cross-sectional view of the display area of the display panel provided by the embodiment of the present application when including a second inorganic encapsulation layer;

[0080] Figure 18 A cross-sectional view of the second inorganic encapsulation layer extending to the non-display area provided by the embodiment of the present application;

[0081] Figure 19 A cross-sectional view of the isolation structure provided by the embodiment of the present application when including a three-layer structure;

[0082] Figure 20 One of the flow diagrams of the manufacturing method of a display panel provided by the embodiment of the present application;

[0083] Figure 21 A cross-sectional view of forming an organic layer on one side of a substrate provided by the embodiment of the present application;

[0084] Figure 22 A cross-sectional view of forming an inorganic layer on the side of the organic encapsulation away from the substrate and opening a via hole in the inorganic layer provided by the embodiment of the present application.

[0085] Reference numerals: 1, substrate; 2, first organic layer; 3, inorganic layer; 31, via hole; 4, isolation structure; 41, first isolation part; 42, second isolation part; 43, third isolation part; 5, shielding layer; 51, shielding trace; 6, touch layer; 61, touch electrode; 7, dam structure; 8, first metal layer; 81, gate; 82, first capacitor plate; 9, second metal layer; 91, second capacitor plate; 10, third metal layer; 101, source electrode; 102, drain electrode; 11, fourth metal layer; 12, second organic layer; 13, first planarization layer; 14, second planarization layer; 15, first electrode layer; 151, first electrode; 16, pixel definition layer; 17, isolation opening; 18, light-emitting layer; 19, second electrode; 20, pixel opening; 21, first inorganic encapsulation layer; 211, encapsulation unit; 22, organic encapsulation layer; 23, second inorganic encapsulation layer; 24, scanning line; 25, first border area; 251, first border sub-area; 252, third border sub-area; 253, second border sub-area; 26, second border area; 261, bonding area. Detailed implementation manners

[0086] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Components of the embodiments of the present application generally described and illustrated in the accompanying drawings herein may be arranged and designed in a variety of different configurations.

[0087] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but is merely representative of selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0088] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0089] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0090] It should be noted that, without conflict, different features in the embodiments of the present application can be combined with each other.

[0091] Please refer to Figure 1 , the display panel in the related art includes a display area AA and a non-display area AB. The display panel further includes a substrate 1, a first organic layer 2 on one side of the substrate 1, an inorganic layer 3 on the side of the first organic layer 2 away from the substrate 1, and an isolation structure 4 on the side of the inorganic layer 3 away from the substrate 1. The isolation structure 4 includes a conductive material and is electrically connected to the cathode of the display area AA of the display panel.

[0092] During the process of manufacturing the display panel, gas is generated in the film layer. The gas can be transmitted between the organic layers, but it is difficult to be transmitted between the inorganic layers 3. Since the inorganic layer 3 is provided on the side of the isolation structure 4 close to the substrate 1, the gas on the side of the inorganic layer 3 close to the substrate 1 cannot be discharged through the inorganic layer 3. After the reliability test, it is easy to cause packaging failure, thereby reducing the reliability of the display panel.

[0093] In view of this, this embodiment provides a solution that can improve the reliability of the display panel. The solution provided in this embodiment will be elaborated in detail below.

[0094] Please refer to Figure 2 and Figure 4 , this embodiment provides a display panel. The display panel includes a display area AA and a non-display area AB. The non-display area AB includes a first border area 25. The display panel includes a substrate 1, a first organic layer 2, an inorganic layer 3, and an isolation structure 4.

[0095] The first organic layer 2 is located on one side of the substrate 1; the inorganic layer 3 is located on the side of the first organic layer 2 away from the substrate 1. A via 31 is formed in the inorganic layer 3 to expose at least a part of the first organic layer 2. The via 31 is located in the first border area 25; the isolation structure 4 is located on the side of the inorganic layer 3 away from the substrate 1. The isolation structure 4 extends from the display area AA to the non-display area AB. The orthographic projection of the via 31 on the substrate 1 is located outside the orthographic projection of the isolation structure 4 on the substrate 1.

[0096] The gas generated in the screen layer can be transmitted in the first organic layer 2 and reach the via 31. Since the orthographic projection of the via 31 on the substrate 1 is located outside the orthographic projection of the isolation structure 4 on the substrate 1, the isolation structure 4 cannot block the gas discharged from the via 31. In this way, the display panel has a path for discharging gas, so it is easier to discharge the gas in the screen body. After the reliability test, it is not easy to cause packaging failure, thus improving the reliability of the display panel.

[0097] Based on the above design, in this embodiment, by opening a via 31 on the inorganic layer 3 to expose at least part of the first organic layer 2, a gas release path for the gas in the screen body can be added on the inorganic layer 3, so that it is more convenient to discharge the gas in the screen body, and thus the reliability of the display panel can be improved.

[0098] In some possible implementation manners, please refer to Figure 3 , the display panel further includes a dam structure 7 located in the non-display area AB. The non-display area AB further includes a shielding area AC. The dam structure 7 is located on the side of the shielding area AC away from the display area AA. The shielding area AC includes a shielding layer 5 on the side of the inorganic layer 3 close to the substrate 1. The shielding layer 5 includes a plurality of shielding traces 51. The display panel further includes a touch layer 6 on the side of the isolation structure 4 away from the substrate 1. The touch layer 6 includes a plurality of touch electrodes 61. The orthographic projection of the touch electrodes 61 on the substrate 1 at least partially overlaps with the orthographic projection of the shielding traces 51 on the substrate 1.

[0099] There is a touch electrode 61 on the side of the shielding layer 5 away from the substrate 1, and there are signal traces with voltage jumps on the side of the shielding layer 5 close to the substrate 1. For example, there are data signal traces (data), control signal traces, etc. The voltage jumps of these signal traces will affect the touch accuracy of the touch electrode 61. The shielding layer 5 includes shielding traces 51, and the voltage of the shielding traces 51 is not easy to jump. For example, the shielding traces 51 can be used to transmit driving voltage (VDD), common voltage (VSS), or reset voltage (Vref), etc. In this way, by setting the shielding layer 5 between the touch electrode 61 and the signal traces, the voltage of the shielding traces 51 of the shielding layer 5 is not easy to jump, thus improving the touch accuracy of the touch electrode 61.

[0100] In some possible implementation manners, please refer to again Figure 3 , the number of vias 31 is multiple. In this way, there are multiple paths for discharging the gas in the screen body, so that the overflow amount of the gas in the screen body can be further increased, and further improving the problem of packaging failure of the display panel.

[0101] Preferably, please refer to again Figure 3, via 31 is located in the non-display area AB. In this way, by setting the gas discharge path in the non-display area AB, the display effect of the display area AA can be not affected.

[0102] Furthermore, the orthographic projection of via 31 on the substrate 1 is located on the side of the orthographic projection of the isolation structure 4 on the substrate 1 that is away from the display area AA. The isolation structure 4 may not extend to the side of via 31 that is away from the substrate 1. In this way, the isolation structure 4 will not block the gas discharged from via 31, making it easier to discharge the gas.

[0103] Preferably, please refer to again Figure 4 , the non-display area AB at least partially surrounds the display area AA. The first border area 25 includes a first border sub-area 251 and a second border sub-area 253 that are located on both sides of the display area AA and are oppositely arranged along the first direction X; the display panel further includes scan lines 24, and the first direction X is the direction in which the scan lines extend in the display area AA; the non-display area AB further includes a second border area 26, the second border area 26 includes a bonding area 261, and the first border area 25 further includes a third border sub-area 252 that is located on the side of the display area AA away from the second border area 26; the second border area 26 and the third border sub-area 252 are arranged along the second direction Y; the second direction Y intersects the first direction X; preferably, the second direction Y is perpendicular to the first direction X.

[0104] The bonding area 261 can bond a circuit board. The second border area 26 is the lower border of the display panel, the first border sub-area 251 and the second border sub-area 253 are the left border and the right border of the display panel respectively, and the third border sub-area 252 is the upper border of the display panel. In this way, via 31 can be provided on the upper border, the left border and the right border of the display panel, and the gas in the panel body can be discharged from the upper border, the left border and the right border of the display panel.

[0105] Preferably, the shape of the orthographic projection of via 31 on the substrate 1 is at least one of a rhombus, a circle or a square. Via 31 can be set to different shapes according to actual needs, which is not limited here.

[0106] In some possible implementation manners, the orthographic projection of via 31 on the substrate 1 is located outside the orthographic projection of the shielding trace 51 on the substrate 1.

[0107] If the orthographic projection of via 31 on the substrate 1 is set to coincide with the orthographic projection of the shielding trace 51 on the substrate 1, the gas in the film layer on the side of the shielding trace 51 close to the substrate 1 will be blocked by the shielding trace 51 and it is not easy to reach via 31, so it is not easy to discharge the gas in the panel body through via 31.

[0108] In this embodiment, the orthographic projection of the via 31 on the substrate 1 is set not to coincide with the orthographic projection of the shielding trace 51 on the substrate 1. It is not easy for the shielding trace 51 to block the gas on the side of the shielding trace 51 close to the substrate 1 from reaching the via 31, so that it is easier to discharge the gas in the screen body, and thus the reliability of the display panel can be further improved.

[0109] In some possible implementation manners, please refer to Figure 3 and Figure 5 , in the shielding area AC, the orthographic projection of the via 31 on the substrate 1 is located between the orthographic projections of two adjacent shielding traces 51 on the substrate 1. The gas on the side of the shielding trace 51 close to the substrate 1 can reach the via 31 from the gap between the shielding traces 51, and then the gas is discharged through the via 31.

[0110] Multiple vias 31 can be set differently.

[0111] In some embodiments, please refer to Figure 5 again. Multiple vias 31 are evenly arranged. In this way, the shapes, sizes, spacings, etc. of all the vias 31 can be the same, so that it is more convenient to set the vias 31, and thus the cost of setting the vias 31 can be reduced.

[0112] In some other embodiments, please refer to Figure 6 . The vias 31 in the shielding area AC are evenly arranged, and the vias 31 along the direction from the side of the shielding area AC close to the dam structure 7 to the dam structure 7 are evenly arranged, and the density of the vias 31 in the shielding area AC is less than the density of the vias 31 on the side close to the dam structure 7.

[0113] Since there are shielding traces 51 in the shielding area AC and the orthographic projection of the via 31 on the substrate 1 is located outside the orthographic projection of the shielding trace 51 on the substrate 1, the density of the vias 31 arranged in the shielding area AC is less than the density of the vias 31 on the side close to the dam structure 7. In this way, the discharge path of the gas can be increased. And the sizes, spacings, etc. of the vias 31 in the shielding area AC are the same, and the sizes, spacings, etc. of the vias 31 from the side of the shielding area AC close to the dam structure 7 to the dam structure 7 are the same, so that it is easier to set the corresponding vias 31.

[0114] In still some other embodiments, please refer to Figure 7 . The density of the vias 31 in the shielding area AC is less than the density of the vias 31 on the side close to the dam structure 7, and along the direction A from the shielding area AC to the dam structure 7, the density of the vias 31 gradually increases.

[0115] Specifically, the diameter of the vias 31 in the shielding area is smaller than the diameter of the vias 31 on the side close to the dam structure 7.

[0116] Further, along the direction A from the shielding region AC to the dam structure 7, the diameter of the vias 31 gradually increases.

[0117] Specifically, the spacing between adjacent vias 31 located in the shielding region AC is greater than the spacing between adjacent vias 31 on the side close to the dam structure 7.

[0118] Further, along the direction A from the shielding region AC to the dam structure 7, the spacing between adjacent vias 31 gradually decreases.

[0119] In this embodiment, in the non-display area AB, according to the setting of the shielding traces 51 in the shielding region AC, the vias 31 can be further differentially set, so that more vias 31 can be set in the non-display area AB, and further, the exhaust path of the gas in the panel can be increased, and finally, the effect of exhausting the gas in the panel can be further improved.

[0120] Preferably, please refer here Figure 7 , the diameter φ of the positive projection of the side of the via 31 close to the substrate 1 on the substrate 1 ranges from 10 μm to 20 μm. For example, the diameter φ can be 10 μm, 12 μm, 15 μm, 18 μm or 20 μm, etc. By reasonably setting the diameter φ, more gas exhaust paths can be set in the non-display area AB, thereby improving the gas exhaust effect in the panel.

[0121] Preferably, please refer here Figure 7 , the spacing D between adjacent vias 31 ranges from 3 μm to 10 μm. For example, the spacing D can be 3 μm, 5 μm, 8 μm or 10 μm, etc. By reasonably setting the spacing D, more gas exhaust paths can be set in the non-display area AB, thereby improving the gas exhaust effect in the panel.

[0122] In some possible implementation manners, please refer to Figure 8 , the display panel includes a first metal layer 8, a second metal layer 9, a third metal layer 10 and a fourth metal layer 11 that are sequentially stacked along the direction away from the substrate 1. The fourth metal layer 11 includes a shielding layer 5, and the display panel further includes a second organic layer 12 on the side of the shielding layer 5 close to the substrate 1.

[0123] Please refer to Figure 9, in the display area AA of the display panel, the display panel further includes a semiconductor layer, the semiconductor layer includes a source region, a drain region, and a channel region, the first metal layer 8 includes a gate 81 and a first capacitor plate 82, the second metal layer 9 includes a second capacitor plate 91, the first capacitor plate 82 and the second capacitor plate 91 form a capacitor, the third metal layer 10 includes a drain 102 and a source 101, the drain 102 is electrically connected to the drain region, the source 101 is electrically connected to the source region, the gate 81, the source 101, and the drain 102 form a switching device, the fourth metal layer 11 includes a metal trace, and the drain 102 is connected to the metal trace.

[0124] In the non-display area AB of the display panel, a shielding layer 5 corresponds to the fourth metal layer 11, the metal traces in the fourth metal layer 11 include shielding traces 51, and the shielding layer 5 can shield the influence of the signal traces on the touch electrodes 61 in the touch layer 6 on the side of the fourth metal layer 11 close to the substrate 1.

[0125] In some possible implementation manners, please refer to again Figure 8 , the non-display area AB further includes a driving circuit area AD located between the display area AA and the shielding area AC, the driving circuit area AD includes driving circuit traces, for example, the driving circuit traces include scan control traces and light emission control traces. The scan control traces and the light emission control traces can control the light-emitting sub-pixels in the display area AA to emit light.

[0126] Preferably, please refer to again Figure 9 , in the display area AA, the display panel further includes a first planarization layer 13 located between the third metal layer 10 and the fourth metal layer 11, and the second organic layer 12 includes the first planarization layer 13.

[0127] Please refer to again Figure 8 , the first planarization layer 13 extends from the display area AA to the non-display area AB, the second organic layer 12 is the first planarization layer 13, and the gas in the screen film layer can reach the first organic layer 2 from the first planarization layer 13, then reach the via 31 from the first organic layer 2, and be discharged from the via 31. In this way, the first planarization layer 13 in the display area AA can be used as the second organic layer 12, and there is no need to specially set the second organic layer 12 in the non-display area AB. Therefore, the cost of specially setting the second organic layer 12 can be reduced.

[0128] Preferably, please refer to again Figure 9 , in the display area AA, the display panel further includes a second planarization layer 14 located on the side of the fourth metal layer 11 away from the substrate 1, and the first organic layer 2 includes the second planarization layer 14.

[0129] Please refer to again Figure 8, the second planarization layer 14 extends from the display area AA to the non-display area AB, and the first organic layer 2 is the second planarization layer 14. The gas reaches the via 31 from the second planarization layer 14 and is then discharged from the via 31. In this way, the second planarization layer 14 in the display area AA can be used as the first organic layer 2, and there is no need to specifically provide the first organic layer 2 in the non-display area AB. Therefore, the cost of specifically providing the first organic layer 2 can be reduced.

[0130] In some possible embodiments, please refer to Figures 10 - 11 , the display panel includes a first metal layer 8, a second metal layer 9, a third metal layer 10, a fourth metal layer 11, and a first electrode layer 15 that are sequentially stacked in a direction away from the substrate 1. The first electrode layer 15 includes a shielding layer 5; the first electrode layer 15 is located between the first organic layer 2 and the inorganic layer 3.

[0131] In the non-display area AB, the conductive trace of the first electrode layer 15 is used as the shielding trace 51. In this way, the conductive trace of the first electrode layer 15 can be used to shield the touch trace of the touch layer 6 and the signal trace on the side of the shielding layer 5 close to the substrate 1, and there is no need to specifically provide the shielding layer 5 in the non-display area AB, thereby reducing the cost of specifically providing the shielding layer 5.

[0132] In some possible embodiments, please refer to Figure 12 , in the display area AA, the display panel further includes a pixel defining layer 16 located on the side of the first electrode layer 15 away from the substrate 1. The pixel defining layer 16 includes a pixel opening 20 exposing the first electrode 151. The isolation structure 4 is located on the side of the pixel defining layer 16 away from the substrate 1. The first electrode layer 15 includes a plurality of first electrodes 151 arranged at intervals, and the first electrode 151 is an anode. The orthographic projection of the isolation structure 4 on the substrate 1 is located between the orthographic projections of two adjacent pixel openings 20 on the substrate 1, and the orthographic projection of the pixel opening 20 on the substrate 1 is located within the orthographic projection of the isolation opening 17 on the substrate 1.

[0133] The display panel further includes a light-emitting layer 18 and a second electrode layer that are sequentially stacked on the first electrode layer 15 in a direction away from the substrate 1. The second electrode layer includes a second electrode 19, and the second electrode 19 is a cathode. The light-emitting layer 18 includes a light-emitting portion. The isolation structure 4 is provided with an isolation opening 17. The isolation opening 17 is located in the display area AA. The second electrode 19 is located within the isolation opening 17 and is electrically connected to the isolation structure 4. The light-emitting portion and the second electrode 19 are both located within the isolation opening 17. The first electrode 151, the light-emitting portion, and the second electrode 19 form a light-emitting sub-pixel, and the light-emitting sub-pixel can be a red sub-pixel, a green sub-pixel, or a blue sub-pixel.

[0134] When forming the second electrode layer, the isolation structure 4 will partition the second electrode layer to form a plurality of second electrodes 19 arranged at intervals. At least a part of the second electrodes 19 extend from within the pixel opening 20 to the side of the pixel defining layer 16 away from the substrate 1 and are in electrical contact with the isolation structure 4.

[0135] Preferably, the inorganic layer 3 includes the pixel defining layer 16. The pixel defining layer 16 extends from the display area AA to the non-display area AB, and the pixel defining layer 16 can have a via 31 opened in the non-display area AB. In this way, it is not necessary to specifically provide the inorganic layer 3, thereby reducing the cost of providing the inorganic layer 3.

[0136] Preferably, please refer to Figure 13 , in the display area AA, the positive projection of the isolation structure 4 on the substrate 1 is in a mesh structure. In this way, the isolation structure 4 can better partition the second electrode layer to form a plurality of second electrodes 19 arranged at intervals and located within the isolation openings 17 respectively.

[0137] In some possible implementation manners, please refer to Figure 14 , the display panel further includes a first inorganic encapsulation layer 21 on the side of the second electrode layer away from the substrate 1. The first inorganic encapsulation layer 21 includes a plurality of encapsulation units 211, and the encapsulation units 211 extend from the side of the isolation structure 4 to the side of the isolation structure 4 away from the substrate 1.

[0138] The isolation structure 4 includes a side close to the substrate 1, a side away from the substrate 1, and a side surface. Adjacent encapsulation units 211 are arranged at intervals on the side of the isolation structure 4 away from the substrate. The encapsulation units 211 respectively and independently encapsulate a plurality of light-emitting sub-pixels, making the light-emitting sub-pixels independent of each other, thereby improving the reliability of the encapsulation, and further optimizing the optical performance of the display panel.

[0139] Preferably, please refer to Figures 15 - 16 , the display panel further includes an organic encapsulation layer 22 on the side of the first inorganic encapsulation layer 21 away from the substrate 1. The organic encapsulation layer 22 extends from the display area AA to the non-display area AB and fills the via 31.

[0140] The organic encapsulation layer 22 can further improve the encapsulation effect on the light-emitting sub-pixels. The gas reaching the organic encapsulation layer 22 from the via 31 can also be exported through the organic encapsulation layer 22.

[0141] Preferably, please refer to Figures 17 - 18 , the display panel further includes a second inorganic encapsulation layer 23 on the side of the organic encapsulation layer 22 away from the substrate 1. The second inorganic encapsulation layer 23 extends from the display area AA to the non-display area AB. The second inorganic encapsulation layer 23 can further improve the encapsulation effect on the light-emitting sub-pixels.

[0142] In some possible implementation manners, please refer to again Figure 14, the isolation structure 4 includes a first isolation portion 41 and a second isolation portion 42 that are sequentially stacked in a direction away from the substrate 1. The orthographic projection of the first isolation portion 41 on the substrate 1 is located within the orthographic projection of the second isolation portion 42 on the substrate 1.

[0143] Since the second isolation portion 42 is located on the side of the first isolation portion 41 away from the substrate 1, and the lateral width of the second isolation portion 42 is greater than the lateral width of the first isolation portion 41, the second isolation portion 42 will disconnect the light-emitting layer 18 and the second electrode layer at the isolation structure 4. In this way, the isolation structure 4 formed by the first isolation portion 41 and the second isolation portion 42 can more easily independently package each light-emitting sub-pixel.

[0144] In some possible implementation manners, please refer to Figure 14 , the second electrode 19 is electrically connected to the first isolation portion 41; please refer to Figure 19 , and / or the isolation structure 4 further includes a third isolation portion 43 located on the side of the first isolation portion 41 facing the substrate 1, and the second electrode 19 is electrically connected to the third isolation portion 43; the material of the third isolation portion 43 includes molybdenum metal; and / or the material of the first isolation portion 41 includes aluminum metal; and / or the material of the second isolation portion 42 includes titanium metal. In this way, when the isolation structure 4 disconnects the second electrode layer into the second electrode 19, the second electrode 19 can be more easily electrically connected to the first isolation portion 41 or the third isolation portion 43.

[0145] In summary, by providing the via hole 31 on the inorganic layer 3 to expose at least part of the first organic layer 2 in the present application, a release path for the gas inside the screen can be increased on the inorganic layer 3, so that the gas inside the screen can be more easily discharged, and thus the reliability of the display panel can be improved.

[0146] In some possible implementation manners, please refer to Figure 20 , the present application further provides a method for manufacturing a display panel. The display panel includes a display area AA and a non-display area AB. The non-display area AB includes a first border area 25. The display panel includes:

[0147] S10: Provide a substrate 1.

[0148] S11: Form a first organic layer 2 on one side of the substrate 1.

[0149] Please refer to Figure 21 , form a first organic layer 2 on one side of the substrate 1.

[0150] S12: Form an inorganic layer 3 on the side of the first organic layer 2 away from the substrate 1, and provide a via hole 31 on the inorganic layer 3 to expose at least part of the first organic layer 2. The via hole 31 is located in the first border area 25.

[0151] Please refer to Figure 22, after the inorganic layer 3 is formed on the side of the first organic layer 2 away from the substrate 1, vias 31 exposing at least part of the first organic layer 2 can then be formed on the inorganic layer 3 by exposure and development.

[0152] S13: Form an isolation structure 4 on the side of the inorganic layer 3 away from the substrate 1. The isolation structure 4 extends from the display area AA to the non-display area AB, and the orthographic projection of the via 31 on the substrate 1 is located outside the orthographic projection of the isolation structure 4 on the substrate 1.

[0153] The gas generated in the screen body film layer can be transmitted in the first organic layer 2 and reach the via 31. Since the orthographic projection of the via 31 on the substrate 1 is located outside the orthographic projection of the isolation structure 4 on the substrate 1, the isolation structure 4 cannot block the gas discharged from the via 31. Thus, the display panel has a path for discharging gas, so it is easier to discharge the gas in the screen body. After the reliability experiment, it is not easy to cause packaging failure, thereby improving the reliability of the display panel.

[0154] In some possible implementation manners, the present application also provides an electronic device, and the electronic device includes the display panel in the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, etc. Since the electronic device includes the display panel in the present application, the reliability of the electronic device is higher.

[0155] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0156] The above-described embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes a display area and a non-display area, the non-display area includes a first border area, and the display panel includes: a substrate; a first organic layer located on one side of the substrate; an inorganic layer located on the side of the first organic layer away from the substrate, and a via is formed in the inorganic layer to expose at least a part of the first organic layer and located in the first border area; an isolation structure located on the side of the inorganic layer away from the substrate, the isolation structure extends from the display area to the non-display area, and the orthographic projection of the via on the substrate is located outside the orthographic projection of the isolation structure on the substrate.

2. The display panel according to claim 1, wherein The number of the vias is plural; Preferably, the plural vias are uniformly arranged; Preferably, the shape of the orthographic projection of the via on the substrate is at least one of a rhombus, a circle or a square; Preferably, the first border area includes a first border sub-area and a second border sub-area which are located on both sides of the display area and are oppositely arranged along a first direction; Preferably, the display panel further includes a scan line, and the first direction is the extending direction of the scan line in the display area; Preferably, the non-display area further includes a second border area, the second border area includes a bonding area, and the first border area further includes a third border sub-area located on the side of the display area away from the second border area; Preferably, the second border area and the third border sub-area are arranged along a second direction; Preferably, the second direction intersects with the first direction; Preferably, the second direction is perpendicular to the first direction.

3. The display panel according to claim 2, characterized in that, The orthographic projection of the via on the substrate is located on the side of the orthographic projection of the isolation structure on the substrate away from the display area; Preferably, at least a part of the non-display area surrounds the display area.

4. The display panel according to claim 2, characterized in that The display panel further includes a dam structure located in the non-display area, the non-display area further includes a shielding area, and the dam structure is located on the side of the shielding area away from the display area; Preferably, the density of the vias located in the shielding area is less than the density of the vias on the side close to the dam structure; 5. The display panel according to claim 4, wherein The vias in the shielding area are uniformly arranged; Preferably, along the direction from the side of the shielding area close to the dam structure to the dam structure, the vias are uniformly arranged.

6. The display panel according to claim 4, wherein Along the direction from the shielding area to the dam structure, the density of the vias gradually increases.

7. The display panel according to claim 4, wherein The diameter of the vias located in the shielding area is less than the diameter of the vias on the side close to the dam structure; Preferably, along the direction from the shielding area to the dam structure, the diameter of the vias gradually increases; Preferably, the diameter range of the orthographic projection of the side of the via close to the substrate on the substrate is 10μm - 20μm.

8. The display panel according to claim 4, wherein The distance between adjacent vias located in the shielding area is greater than the distance between adjacent vias on the side close to the dam structure; Preferably, along the direction from the shielding area to the dam structure, the distance between adjacent vias gradually decreases; Preferably, the distance range between adjacent vias is 3μm - 10μm.

9. The display panel according to claim 4, wherein A shielding layer is disposed in the shielding area on a side of the inorganic layer close to the substrate. The shielding layer includes a plurality of shielding traces. The display panel further includes a touch layer on a side of the isolation structure away from the substrate. The touch layer includes a plurality of touch electrodes, and a positive projection of the touch electrodes on the substrate overlaps at least partially with a positive projection of the shielding traces on the substrate.

10. The display panel according to claim 9, wherein A positive projection of the via hole on the substrate is located outside a positive projection of the shielding trace on the substrate; Preferably, in the shielding area, a positive projection of the via hole on the substrate is located between positive projections of two adjacent shielding traces on the substrate.

11. The display panel according to claim 10, wherein The display panel includes a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer sequentially stacked in a direction away from the substrate, and the fourth metal layer includes the shielding layer; Preferably, the display panel further includes a second organic layer on a side of the shielding layer close to the substrate; Preferably, the display panel further includes a first planarization layer between the third metal layer and the fourth metal layer, and the second organic layer includes the first planarization layer; Preferably, the display panel further includes a second planarization layer on a side of the fourth metal layer away from the substrate, and the first organic layer includes the second planarization layer.

12. The display panel according to claim 10, wherein The display panel includes a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, and a first electrode layer sequentially stacked in a direction away from the substrate, and the first electrode layer includes the shielding layer; Preferably, the first electrode layer is located between the first organic layer and the inorganic layer; Preferably, the first electrode includes an anode.

13. The display panel according to claim 4, wherein The non-display area further includes a driving circuit area located between the display area and the shielding area, and the driving circuit area is provided with driving circuit traces; Preferably, the driving circuit traces include scan control traces and light emission control traces.

14. The display panel according to any one of claims 1-13, characterized in that, The display panel further includes a first electrode layer, a light-emitting layer, and a second electrode layer sequentially stacked in a direction away from the substrate. The first electrode layer includes a first electrode, the second electrode layer includes a second electrode, the isolation structure is provided with an isolation opening, the isolation opening is located in the display area, and the second electrode is located in the isolation opening and is electrically connected to the isolation structure; Preferably, in the display area, a positive projection of the isolation structure on the substrate has a mesh structure; Preferably, the light-emitting layer includes a light-emitting portion, and the light-emitting portion is located in the isolation opening.

15. The display panel according to claim 14, wherein The display panel further includes a pixel defining layer on a side of the first electrode layer away from the substrate. The pixel defining layer includes a pixel opening exposing the first electrode. A positive projection of the isolation structure on the substrate is located between positive projections of two adjacent pixel openings on the substrate, and a positive projection of the pixel opening on the substrate is located within a positive projection of the isolation opening on the substrate; Preferably, the inorganic layer includes the pixel defining layer.

16. The display panel according to claim 14, wherein, The display panel further includes a first inorganic encapsulation layer on a side of the second electrode layer away from the substrate. The first inorganic encapsulation layer includes a plurality of encapsulation units, and the encapsulation units extend from a side surface of the isolation structure to a side of the isolation structure away from the substrate. Preferably, the display panel further includes an organic encapsulation layer on a side of the first inorganic encapsulation layer away from the substrate. The organic encapsulation layer extends from the display area to the non-display area and fills the vias. Preferably, the display panel further includes a second inorganic encapsulation layer on a side of the organic encapsulation layer away from the substrate. The second inorganic encapsulation layer extends from the display area to the non-display area.

17. The display panel according to claim 14, wherein The isolation structure includes a first isolation portion and a second isolation portion stacked in sequence in a direction away from the substrate. A positive projection of the first isolation portion on the substrate is located within a positive projection of the second isolation portion on the substrate.

18. The display panel according to claim 17, wherein The second electrode is electrically connected to the first isolation portion; and / or the isolation structure further includes a third isolation portion on a side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion. Preferably, the material of the third isolation portion includes molybdenum metal; and / or the material of the first isolation portion includes aluminum metal; and / or the material of the second isolation portion includes titanium metal.

19. A method for manufacturing a display panel, characterized in that, The display panel includes a display area and a non-display area. The non-display area includes a first border area. The display panel includes: providing a substrate; forming a first organic layer on one side of the substrate; forming an inorganic layer on a side of the first organic layer away from the substrate, and forming a via in the inorganic layer that exposes at least a part of the first organic layer and is located in the first border area; forming an isolation structure on a side of the inorganic layer away from the substrate. The isolation structure extends from the display area to the non-display area, and a positive projection of the via on the substrate is located outside a positive projection of the isolation structure on the substrate.

20. An electronic device, characterized in that, The electronic device includes the display panel according to any one of claims 1-18.

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