Display panel, manufacturing method of display panel, and electronic apparatus

Abstract

To provide a display panel improved in reliability.SOLUTION: A display panel comprises: a basis 1; a first organic layer 2 that is positioned on one side of the basis 1; an inorganic layer 3 that makes at least a part of the first organic layer 2 to be exposed, and is positioned at a side where a via hole 31 positioned on a non-display region AB is opened and is separated from the basis 1 of the first organic layer 2; and a separation structure 4 that is positioned on a side separated from the basis 1 of the inorganic layer 3. The separation structure 4 is extended from a display region AA to the non-display region AB, and an orthographic projection on the basis 1 of the via hole 31 is positioned at the other than the orthographic projection on the basis 1 of the separation structure 4. A discharge path of gas in a screen can be increased in the inorganic layer 4 by opening the via hole 31 that makes at least a part of the first organic layer 2 to be exposed to the inorganic layer 3, and the gas in the screen can be easily exhausted.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This application relates to the field of display technologies, and more specifically, to a display panel, a method for manufacturing a 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 advantages such as high image quality, power saving, thin body, and wide application range. Therefore, they are widely applied to various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers, and have become the mainstream of display panels.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, the reliability of display panels in related technologies is not sufficient.

Means for Solving the Problems

[0004] To overcome the technical problems mentioned in the above technical background, an embodiment of this application provides a display panel including a display area and a non-display area, where the non-display area includes a first frame 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, where at least a part of the first organic layer is exposed, and a via hole located in the first frame area is opened, an isolation structure located on the side of the inorganic layer away from the substrate, and the isolation structure extends from the display area to the non-display area, and a positive projection of the via hole on the substrate is located outside a positive projection of the isolation structure on the substrate, providing a display panel.

[0005] In some possible embodiments, the number of the via holes is plural; Preferably, the plurality of the via holes are uniformly arranged; Preferably, the shape of the orthographic projection of the via hole on the substrate is at least one of a rhombus, a circle or a square; Preferably, the first frame region includes a first frame sub-region and a second frame sub-region that are located on both sides of the display region and are arranged opposite to each other along a first direction; Preferably, the display panel further includes scanning lines, and the first direction is the direction in which the scanning lines extend in the display region; Preferably, the non-display region further includes a second frame region including a bonding region, and the first frame region further includes a third frame sub-region located on a side away from the second frame region of the display region; Preferably, the second frame region and the third frame sub-region are arranged along a second direction; Preferably, the second direction intersects the first direction; Preferably, the second direction is perpendicular to the first direction; Preferably, the orthographic projection of the via hole on the substrate is located on a side away from the display region of the orthographic projection of the isolation structure on the substrate; Preferably, at least a part of the non-display region surrounds the display region.

[0006] In some possible embodiments, the display panel further includes a dam structure located in the non-display region, the non-display region further includes a shield region, and the dam structure is located on a side away from the display region of the shield region; Preferably, the density of the via holes located in the shield region is smaller than the density of the via holes in a region of the shield region closer to the dam structure; Preferably, the via holes in the shield region are uniformly arranged; Preferably, the via holes are uniformly arranged along the direction from the side of the shield region close to the dam structure to the dam structure; Preferably, the density of the via holes gradually increases along the direction from the shield region to the dam structure.

[0007] In some possible embodiments, the diameter of the via holes located in the shield region is smaller than the diameter of the via holes in the region of the shield region closer to the dam structure; Preferably, the diameter of the via holes gradually increases along the direction from the shield region to the dam structure; Preferably, the distance between adjacent via holes located in the shield region is larger than the distance between adjacent via holes in the region of the shield region closer to the dam structure; Preferably, the distance between adjacent via holes gradually decreases along the direction from the shield region to the dam structure; Preferably, the range of the diameter of the orthographic projection of the via holes on the base close to the base of the via holes is 10 μm to 20 μm; Preferably, the range of the distance between adjacent via holes is 3 μm to 10 μm.

[0008] In some possible embodiments, a shield layer is disposed in the shield region on the side close to the base of the inorganic layer. The shield layer includes a plurality of shield wirings. The display panel further includes a touch layer located on the side away from the base of the isolation structure. The touch layer includes a plurality of touch electrodes. The orthographic projection of the touch electrodes on the base at least partially overlaps with the orthographic projection of the shield wirings on the base.

[0009] In some possible embodiments, the orthographic projection of the via holes on the base is located outside the orthographic projection of the shield wirings on the base; Preferably, in the shield region, the orthographic projection of the via hole on the substrate is located between the orthographic projections of two adjacent shield wirings on the substrate.

[0010] 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 that are sequentially stacked and arranged in a direction away from the substrate, and the fourth metal layer includes the shield layer; Preferably, the display panel further includes a second organic layer located on the side of the shield layer closer to the substrate; Preferably, the display panel further includes a first planarization layer located 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 located on the side of the fourth metal layer away from the substrate, and the first organic layer includes the second planarization layer.

[0011] 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 that are sequentially stacked and arranged in a direction away from the substrate, and the first electrode layer includes the shield layer; Preferably, the first electrode layer is located between the first organic layer and the inorganic layer; Preferably, the first electrode includes an anode.

[0012] In some possible embodiments, the non-display region further includes a driving circuit region located between the display region and the shield region, and driving circuit wirings are arranged in the driving circuit region; Preferably, the driving circuit wirings include a scanning control wiring and a light emission control wiring.

[0013] 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 and arranged along a direction away from the substrate. The first electrode layer includes a first electrode, the second electrode layer includes a second electrode, an isolation opening is arranged in the isolation structure, the isolation opening is located in the display area, the second electrode is located in the isolation opening, and is electrically connected to the isolation structure; Preferably, in the display area, the orthographic projection of the isolation structure on the substrate presents a reticular structure; Preferably, the light-emitting layer includes a light-emitting portion located in the isolation opening; Preferably, the display panel further includes a pixel defining layer located on a side of the first electrode layer away from the substrate. The pixel defining layer includes a pixel opening for 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; Preferably, the inorganic layer includes the pixel defining layer.

[0014] 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 away from the substrate of the isolation structure; 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 via hole; 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.

[0015] In some possible embodiments, the isolation structure includes a first isolation portion and a second isolation portion that are sequentially stacked and arranged along 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.

[0016] 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 facing the substrate of the first isolation portion, 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.

[0017] In some possible embodiments, the present application is a method for manufacturing a display panel including a display area and a non-display area, the non-display area includes a first frame area, and the method for manufacturing 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, opening a via hole that exposes at least a part of the first organic layer in the inorganic layer and is located in the first frame 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 hole on the substrate is located outside a positive projection of the isolation structure on the substrate, and further provides a method for manufacturing a display panel.

[0018] In some possible embodiments, the present application further provides an electronic device including the display panel described in the present application.

[0019] Compared with the prior art, the present application has the following beneficial effects.

[0020] The display panel, the manufacturing method of the display panel, and the electronic device according to the present application can increase the gas release path in the screen in the inorganic layer by opening via holes that expose at least a part of the first organic layer in the inorganic layer. Therefore, the gas in the screen can be more easily discharged, and the reliability of the display panel can be improved.

Brief Description of the Drawings

[0021] To more clearly explain the technical solutions of the embodiments of the present application, the drawings that need to be used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. Those skilled in the art can also obtain other related drawings according to these drawings without creative efforts.

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Embodiments for Carrying Out the Invention

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Here, generally, the components of the embodiments of this application described and shown in the drawings can be arranged / designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application to be protected, but only shows the selected embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of this application.

[0024] It should be noted that in the following drawings, the same reference numerals and letters indicate the same items. Therefore, if an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0025] In addition, in the description of this application, 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 product of the invention is always arranged when in use. It is only for the convenience of description and simplification of the description of this application, and does not indicate or imply that the specified device or element must have a specific orientation and be configured and operated in a specific orientation. Therefore, it should not be understood as limiting this application. Also, the terms "first", "second", "third", etc. are only for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0026] In addition, unless there is no contradiction, different features in the embodiments of this application may be combined with each other.

[0027] Referring to FIG. 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 base 1, a first organic layer 2 located on one side of the base 1, an inorganic layer 3 located on the side away from the base 1 of the first organic layer 2, and an isolation structure 4 located on the side away from the base 1 of the inorganic layer 3. The isolation structure 4 includes a conductive material, and the isolation structure 4 is electrically connected to the cathode of the display area AA of the display panel.

[0028] Gas is generated in the film layer during the process of manufacturing the display panel. The gas can move between the organic layers but is difficult to move between the inorganic layers 3. Since the inorganic layer 3 is disposed on the side close to the base 1 of the isolation structure 4, the gas on the side close to the base 1 of the inorganic layer 3 cannot permeate through the inorganic layer 3 and be discharged. This easily causes the failure of the seal after the reliability test and reduces the reliability of the display panel.

[0029] In view of this, this embodiment provides a solution to improve the reliability of the display panel. Hereinafter, the solution according to this embodiment will be described in detail.

[0030] Referring to FIGS. 2 and 4, this embodiment provides a display panel, which includes a display area AA and a non-display area AB. The non-display area AB includes a first frame area 25. The display panel includes a base 1, a first organic layer 2, an inorganic layer 3, and an isolation structure 4.

[0031] The first organic layer 2 is located on one side of the base 1. The inorganic layer 3 is located on the side away from the base 1 of the first organic layer 2. A via hole 31 for exposing at least a part of the first organic layer 2 is formed in the inorganic layer 3. The via hole 31 is located in the first frame area 25. The isolation structure 4 is located on the side away from the base 1 of the inorganic layer 3. The isolation structure 4 extends from the display area AA to the non-display area AB. The orthographic projection of the via hole 31 on the base 1 is located outside the orthographic projection of the isolation structure 4 on the base 1.

[0032] The gas generated in the screen film layer can move in the first organic layer 2 and reach the via hole 31. Since the orthographic projection of the via hole 31 on the base 1 is located outside the orthographic projection of the isolation structure 4 on the base 1, the isolation structure 4 cannot prevent the via hole 31 from discharging gas. In this way, since the display panel has a path for discharging gas, the gas in the screen can be discharged more easily, it is less likely to cause the failure of the seal after the reliability test, and the reliability of the display panel can be improved.

[0033] Based on the above design, in this embodiment, by opening a via hole 31 that exposes at least a part of the first organic layer 2 in the inorganic layer 3, the discharge path of the gas in the screen can be increased in the inorganic layer 3, so that the gas in the screen can be discharged more easily, and thus the reliability of the display panel can be improved.

[0034] In some possible embodiments, referring to FIG. 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 shield area AC. The dam structure 7 is located on the side away from the display area AA of the shield area AC. The shield area AC includes a shield layer 5 located on the side close to the base 1 of the inorganic layer 3. The shield layer 5 includes a plurality of shield wirings 51. The display panel further includes a touch layer 6 located on the side away from the base 1 of the isolation structure 4. The touch layer 6 includes a plurality of touch electrodes 61. The orthographic projection of the touch electrode 61 on the base 1 at least partially overlaps with the orthographic projection of the shield wiring 51 on the base 1.

[0035] It has a touch electrode 61 on the side away from the base 1 of the shield layer 5, and has a signal wiring for voltage jump on the side closer to the base 1 of the shield layer 5. For example, it has a data signal wiring (data), a control signal wiring, etc. The voltage jump of these signal wirings affects the touch accuracy of the touch electrode 61. The shield layer 5 includes a shield wiring 51, and the voltage of the shield wiring 51 is not likely to jump. For example, the shield wiring 51 is used to transmit a driving voltage (VDD), a common voltage (VSS), a reset voltage (Vref), or the like. In this way, since the shield layer 5 is arranged between the touch electrode 61 and the signal wiring, and the voltage of the shield wiring 51 of the shield layer 5 is not likely to jump, the touch accuracy of the touch electrode 61 can be improved.

[0036] In some possible embodiments, referring to FIG. 3 again, the number of via holes 31 is plural. In this way, by having a plurality of paths for discharging the gas in the screen, the overflow amount of the gas in the screen can be further increased, and the problem of sealing failure of the display panel can be further improved.

[0037] Preferably, referring to FIG. 3 again, the via hole 31 is located in the non-display area AB. In this way, by arranging the gas discharge path in the non-display area AB, the display effect of the display area AA is not affected.

[0038] Furthermore, the orthographic projection of the via hole 31 on the base 1 is located on the side away from the display area AA of the orthographic projection of the isolation structure 4 on the base 1. The isolation structure 4 does not have to extend to the side away from the base 1 of the via hole 31. In this way, the isolation structure 4 does not block the gas discharged from the via hole 31 and discharges the gas more easily.

[0039] Preferably, referring again to FIG. 4, the non-display area AB at least partially surrounds the display area AA. The first frame area 25 includes a first frame sub-area 251 and a second frame sub-area 253 that are located on both sides of the display area AA and are arranged opposite to each other along the first direction X. The display panel further includes scan lines 24. The first direction X is the direction in which the scan lines 24 extend into the display area AA. The non-display area AB further includes a second frame area 26 having a bonding area 261. The first frame area 25 further includes a third frame sub-area 252 that is located on the side away from the second frame area 26 of the display area AA. The second frame area 26 and the third frame sub-area 252 are arranged along a second direction Y. The second direction Y intersects the first direction X. Preferably, the second direction Y is perpendicular to the first direction X.

[0040] The bonding area 261 can bond the circuit substrate. The second frame area 26 is the lower frame of the display panel. The first frame sub-area 251 and the second frame sub-area 253 are the left frame and the right frame of the display panel, respectively. The third frame sub-area 252 is the upper frame of the display panel. Thus, the via holes 31 may be arranged in the upper frame, the left frame, and the right frame of the display panel, and the gas in the screen can be discharged from the upper frame, the left frame, and the right frame of the display panel.

[0041] Preferably, the orthographic projection shape of the base 1 of the via hole 31 is at least one of a rhombus, a circle, or a square. The via holes 31 can be arranged in different shapes according to actual needs, and are not limited herein.

[0042] In some possible embodiments, the orthographic projection of the base 1 of the via hole 31 is located outside the orthographic projection of the base 1 of the shield wiring 51.

[0043] When the orthographic projection of the base 1 of the via hole 31 overlaps with the orthographic projection of the base 1 of the shield wiring 51, the gas in the film layer closer to the base 1 of the shield wiring 51 is blocked by the shield wiring 51 and it is difficult to reach the via hole 31, and the gas in the screen is difficult to be discharged through the via hole 31.

[0044] In this embodiment, when the orthographic projection of the base 1 of the via hole 31 is arranged not to overlap with the orthographic projection of the base 1 of the shield wiring 51, the shield wiring 51 is less likely to prevent the gas closer to the base 1 of the shield wiring 51 from reaching the via hole 31. Thereby, the gas in the screen can be discharged more easily, and thus the reliability of the display panel can be further improved.

[0045] In some possible embodiments, referring to FIGS. 3 and 5, in the shield region AC, the orthographic projection of the base 1 of the via hole 31 is located between the orthographic projections of the bases 1 of two adjacent shield wirings 51. The gas located closer to the base 1 of the shield wiring 51 can reach the via hole 31 from the gap between the shield wirings 51 and then be discharged through the via hole 31.

[0046] The plurality of via holes 31 may be arranged differently.

[0047] In some embodiments, referring to FIG. 5 again, the plurality of via holes 31 are arranged uniformly. In this way, the shapes, sizes, intervals, etc. of all the via holes 31 may all be the same, whereby the via holes 31 can be arranged more easily and the cost of arranging the via holes 31 can be reduced.

[0048] In other embodiments, referring to FIG. 6, the via holes 31 in the shield region AC are uniformly arranged, the via holes 31 along the direction from the side close to the dam structure 7 to the dam structure 7 in the shield region AC are uniformly arranged, and the density of the via holes 31 located in the shield region AC is smaller than the density of the via holes 31 in the region of the shield region AC close to the dam structure 7.

[0049] Since the shield wiring 51 is arranged in the shield region AC and the orthographic projection of the base 1 of the via hole 31 is located outside the orthographic projection of the base 1 of the shield wiring 51, the density of the via holes 31 in the shield region AC is arranged to be smaller than the density of the via holes 31 in the region of the shield region AC close to the dam structure 7. In this way, the gas discharge path can be increased. Also, the size, interval, etc. of the via holes 31 in the shield region AC are the same, and the size, interval, etc. of the via holes 31 from the side close to the dam structure 7 to the dam structure 7 in the shield region AC are the same, so the corresponding via holes 31 can be arranged more easily.

[0050] In still another embodiment, referring to FIG. 7, the density of the via holes 31 located in the shield region AC is smaller than the density of the via holes 31 in the region of the shield region AC close to the dam structure 7, and along the direction A from the shield region AC to the dam structure 7, the density of the via holes 31 gradually increases.

[0051] Specifically, the diameter of the via holes 31 located in the shield region is smaller than the diameter of the via holes 31 in the region of the shield region close to the dam structure 7.

[0052] Furthermore, along the direction A from the shield region AC to the dam structure 7, the diameter of the via holes 31 gradually increases.

[0053] Specifically, the interval between adjacent via holes 31 located in the shield region AC is larger than the interval between adjacent via holes 31 in the region of the shield region AC close to the dam structure 7.

[0054] Furthermore, along the direction A from the shield region AC to the dam structure 7, the interval between adjacent via holes 31 gradually decreases.

[0055] In this embodiment, in the non-display region AB, according to the arrangement of the shield wiring 51 in the shield region AC, the via holes 31 can be further differentially arranged. As a result, more via holes 31 can be arranged in the non-display region AB, and thus the exhaust path of the gas in the screen can be further increased, and finally the effect of exhausting the gas in the screen can be further improved.

[0056] Preferably, referring to FIG. 7, the range of the diameter φ of the orthographic projection on the base 1 on the side close to the base 1 of the via hole 31 is 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 arranging the diameter φ, more gas exhaust paths can be arranged in the non-display region AB, so that the exhaust effect of the gas in the screen can be improved.

[0057] Preferably, referring to FIG. 7, the range of the interval D between adjacent via holes 31 is 3 μm to 10 μm. For example, the interval D can be 3 μm, 5 μm, 8 μm, or 10 μm, etc. By reasonably arranging the interval D, more gas exhaust paths can be arranged in the non-display region AB, and the exhaust effect of the gas in the screen can be improved.

[0058] In some possible embodiments, referring to FIG. 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 and arranged along the direction away from the base 1. The fourth metal layer 11 includes a shield layer 5, and the display panel further includes a second organic layer 12 located on the side close to the base 1 of the shield layer 5.

[0059] Referring to FIG. 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 electrode 81 and a first capacitor electrode plate 82, the second metal layer 9 includes a second capacitor electrode plate 91, the first capacitor electrode plate 82 and the second capacitor electrode plate 91 form a capacitor, the third metal layer 10 includes a drain electrode 102 and a source electrode 101, the drain electrode 102 is electrically connected to the drain region, the source electrode 101 is electrically connected to the source region, the gate electrode 81, the source electrode 101, and the drain electrode 102 form a switching device, the fourth metal layer 11 includes a metal wiring, and the drain electrode 102 is connected to the metal wiring.

[0060] In the non-display area AB of the display panel, the shield layer 5 corresponds to the fourth metal layer 11, the metal wiring in the fourth metal layer 11 includes a shield wiring 51, and the shield layer 5 can shield the influence on the touch electrode 61 in the touch layer 6 by the signal wiring on the side close to the base 1 of the fourth metal layer 11.

[0061] In some possible embodiments, referring to FIG. 8 again, the non-display area AB further includes a driving circuit area AD located between the display area AA and the shield area AC, the driving circuit area AD includes driving circuit wirings, for example, the driving circuit wirings include a scanning control wiring and a light emission control wiring. The scanning control wiring and the light emission control wiring can control the light emission of the light-emitting sub-pixels in the display area AA.

[0062] Preferably, referring to FIG. 9 again, 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.

[0063] Referring to FIG. 8 again, 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. The gas in the screen film layer reaches the first organic layer 2 from the first planarization layer 13, further reaches the via hole 31 from the first organic layer 2, and is discharged from the via hole 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 specifically arrange the second organic layer 12 in the non-display area AB. Therefore, the cost of specifically arranging the second organic layer 12 can be reduced.

[0064] Preferably, referring to FIG. 9 again, in the display area AA, the display panel further includes a second planarization layer 14 located on the side away from the base 1 of the fourth metal layer 11, and the first organic layer 2 includes the second planarization layer 14.

[0065] Referring to FIG. 8 again, 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 hole 31 from the second planarization layer 14 and is discharged from the via hole 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 arrange the first organic layer 2 in the non-display area AB. Therefore, the cost of specifically arranging the first organic layer 2 can be reduced.

[0066] In some possible embodiments, referring to FIGS. 10 to 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 and arranged along the direction away from the base 1. The first electrode layer 15 includes a shield layer 5. The first electrode layer 15 is located between the first organic layer 2 and the inorganic layer 3.

[0067] In the non-display area AB, the conductive wiring of the first electrode layer 15 is used as the shield wiring 51. In this way, the touch wiring of the touch layer 6 and the signal wiring located on the side close to the base 1 of the shield layer 5 can be shielded by using the conductive wiring of the first electrode layer 15. There is no need to specifically arrange the shield layer 5 in the non-display area AB, and the cost of specifically arranging the shield layer 5 can be reduced.

[0068] In some possible embodiments, referring to FIG. 12, in the display area AA, the display panel further includes a pixel defining layer 16 located on the side away from the base 1 of the first electrode layer 15. The pixel defining layer 16 includes a pixel opening 20 that exposes the first electrode 151, and the isolation structure 4 is located on the side away from the base 1 of the pixel defining layer 16. 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 base 1 is located between the orthographic projections of two adjacent pixel openings 20 on the base 1, and the orthographic projection of the pixel opening 20 on the base 1 is located within the orthographic projection of the isolation opening 17 on the base 1.

[0069] The display panel further includes a light-emitting layer 18 and a second electrode layer that are sequentially stacked and arranged along the direction away from the base 1 and are located on the first electrode layer 15. The second electrode layer includes a second electrode 19, the second electrode 19 is a cathode, the light-emitting layer 18 includes a light-emitting portion, an isolation opening 17 is arranged in the isolation structure 4, 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, both the light-emitting portion and the second electrode 19 are 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.

[0070] When forming the second electrode layer, the isolation structure 4 forms a plurality of second electrodes 19 that are spaced apart by dividing the second electrode layer, and at least a part of the second electrodes 19 extends from within the pixel opening 20 to the side away from the base 1 of the pixel defining layer 16 and is in electrical contact with the isolation structure 4.

[0071] 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 open a via hole 31 in the non-display area AB. In this way, since there is no particular need to arrange the inorganic layer 3, the cost of arranging the inorganic layer 3 can be reduced.

[0072] Preferably, referring to FIG. 13, in the display area AA, the orthographic projection on the base 1 of the isolation structure 4 presents a reticular structure. In this way, the isolation structure 4 can better isolate the second electrode layer and form a plurality of second electrodes 19 that are spaced apart and located within the isolation openings 17 respectively.

[0073] In some possible embodiments, referring to FIG. 14, the display panel further includes a first inorganic encapsulation layer 21 located on the side away from the base 1 of the second electrode layer. The first inorganic encapsulation layer 21 includes a plurality of encapsulation units 211, and the encapsulation units 211 extend from the side surface of the isolation structure 4 to the side away from the base 1 of the isolation structure 4.

[0074] The isolation structure 4 includes a side close to the base 1, a side away from the base 1, and a side surface. Adjacent encapsulation units 211 are spaced apart and arranged on the side away from the base 1 of the isolation structure 4. The encapsulation units 211 encapsulate a plurality of light-emitting sub-pixels independently respectively, and by making the light-emitting sub-pixels independent of each other, the reliability of the encapsulation can be improved, and further the optical performance of the display panel can be optimized.

[0075] Preferably, referring to FIGS. 15 to 16, the display panel further includes an organic encapsulation layer 22 located on the side away from the base 1 of the first inorganic encapsulation layer 21. The organic encapsulation layer 22 extends from the display area AA to the non-display area AB and fills the via holes 31.

[0076] The organic encapsulation layer 22 can further improve the encapsulation effect on the light-emitting sub-pixels, and the gas reaching the organic encapsulation layer 22 from the via holes 31 can also be led out through the organic encapsulation layer 22.

[0077] Preferably, referring to FIGS. 17 to 18, the display panel further includes a second inorganic encapsulation layer 23 located on the side away from the base 1 of the organic encapsulation layer 22. 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.

[0078] In some possible embodiments, referring to FIG. 14 again, the isolation structure 4 includes a first isolation portion 41 and a second isolation portion 42 that are sequentially stacked and arranged along a direction away from the base 1, and the orthographic projection of the first isolation portion 41 on the base 1 is located within the orthographic projection of the second isolation portion 42 on the base 1.

[0079] Since the second isolation portion 42 is located on the side away from the base 1 of the first isolation portion 41 and the lateral width of the second isolation portion 42 is larger than that of the first isolation portion 41, the second isolation portion 42 cuts off the light-emitting layer 18 and the second electrode layer with 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 seal each light-emitting sub-pixel independently.

[0080] In some possible embodiments, referring to FIG. 14 again, the second electrode 19 is electrically connected to the first isolation portion 41, referring to FIG. 19, and / or the isolation structure 4 further includes a third isolation portion 43 located on the side facing the base 1 of the first isolation portion 41, 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 divides the second electrode layer into the second electrode 19, the second electrode 19 is easily electrically connected to the first isolation portion 41 or the third isolation portion 43.

[0081] As described above, the present application can increase the gas release path in the screen by opening the via hole 31 that exposes at least a part of the first organic layer 2 in the inorganic layer 3, so that the gas in the screen can be more easily discharged, and thus the reliability of the display panel can be improved.

[0082] In some possible embodiments, referring to FIG. 20, the present application 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 frame area 25. The method for manufacturing the display panel is as follows: S10: Providing the substrate 1, S11: Forming the first organic layer 2 on one side of the substrate 1, (Referring to FIG. 21, forming the first organic layer 2 on one side of the substrate 1) S12: Forming the inorganic layer 3 on the side of the first organic layer 2 away from the substrate 1, opening a via hole 31 that exposes at least a part of the first organic layer 2 in the inorganic layer 3 and is located in the first frame region 25, Referring to FIG. 22, after forming the inorganic layer 3 on the side of the first organic layer 2 away from the substrate 1, it is possible to open a via hole 31 that exposes at least a part of the first organic layer 2 in the inorganic layer 3 by an exposure and development method, S13: Forming the 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 hole 31 on the substrate 1 is located outside the orthographic projection of the isolation structure 4 on the substrate 1, including.

[0083] The gas generated in the screen film layer can move to the first organic layer 2 and reach the via hole 31. Since the orthographic projection of the via hole 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 prevent the via hole 31 from discharging the gas. In this way, since the display panel has a path for discharging the gas, the gas in the screen can be discharged more easily, it is less likely to cause the failure of the seal after the reliability test, and the reliability of the display panel can be improved.

[0084] In some possible embodiments, the present application further provides an electronic device including the display panel in the present application. The electronic device may include devices having image processing capabilities, such as servers, personal computers, laptop computers, etc. Since the electronic device includes the display panel in the present application, the reliability of the electronic device is higher.

[0085] Each technical feature of the above embodiments can be arbitrarily combined. 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 regarded as within the scope described in this specification.

[0086] The above embodiments only show some embodiments of the present application, and their descriptions are more specific and detailed, but cannot be understood as limiting the scope of the claims. Those skilled in the art can make some modifications and improvements without departing from the idea of the present application, and all of these belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope of the claims.

Description of Reference Numerals

[0087] 1 Base, 2 First Organic Layer, 3 Inorganic Layer, 31 Via Hole, 4 Isolation Structure, 41 First Isolation Portion, 42 Second Isolation Portion, 43 Third Isolation Portion, 5 Shielding Layer, 51 Shielding Wiring, 6 Touch Layer, 61 Touch Electrode, 7 Dam Structure, 8 First Metal Layer, 81 Gate Electrode, 82 First Capacitor Electrode Plate, 9 Second Metal Layer, 91 Second Capacitor Electrode 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 Frame Region, 251 First Frame Sub-Region, 252 Third Frame Sub-Region, 253 Second Frame Sub-Region, 26 Second Frame Region, 261 Bonding Region.

Claims

1. A display panel, comprising: a display area and a non-display area, wherein the non-display area includes a first frame area; the display panel further includes: a base; a first organic layer located on one side of the base; an inorganic layer located on the side of the first organic layer away from the base, with at least a part of the first organic layer exposed and a via hole located in the first frame area being formed; an isolation structure located on the side of the inorganic layer away from the base; the isolation structure extends from the display area to the non-display area, and the orthographic projection of the via hole on the base is located outside the orthographic projection of the isolation structure on the base; a display panel.

2. The number of the via holes is plural, the display panel according to Claim 1.

3. The plural via holes are uniformly arranged, the display panel according to Claim 2.

4. The first frame area includes a first frame sub-area and a second frame sub-area which are arranged opposite to each other along a first direction and located on both sides of the display area; the display panel further includes a scanning line, and the first direction is the direction in which the scanning line extends in the display area; the display panel according to Claim 2.

5. The orthographic projection of the via hole on the base is located on the side where the orthographic projection of the isolation structure on the base is away from the display area; at least a part of the non-display area surrounds the display area; the display panel according to Claim 2.

6. The display panel further includes a dam structure located in the non-display area; the non-display area further includes a shield area; the dam structure is located on the side of the shield area away from the display area; the display panel according to Claim 2.

7. The density of the via holes located in the shield area is smaller than the density of the via holes in the area of the shield area closer to the dam structure; the display panel according to Claim 6.

8. The via holes are uniformly arranged along the direction from the side of the shield area closer to the dam structure to the dam structure; the display panel according to Claim 6.

9. The density of the via holes gradually increases along the direction from the shield region to the dam structure. The display panel according to claim 6.

10. The diameter of the via holes located in the shield region is smaller than the diameter of the via holes in the region of the shield region closer to the dam structure. The diameter of the via holes gradually increases along the direction from the shield region to the dam structure. The display panel according to claim 6.

11. The distance between adjacent via holes located in the shield region is larger than the distance between adjacent via holes in the region of the shield region closer to the dam structure. The distance between adjacent via holes gradually decreases along the direction from the shield region to the dam structure. The display panel according to claim 6.

12. A shield layer is disposed in the shield region on the side closer to the base of the inorganic layer. The shield layer includes a plurality of shield wirings. The display panel further includes a touch layer located on the side away from the base of the isolation structure. The touch layer includes a plurality of touch electrodes. The orthographic projection of the touch electrode on the base overlaps at least partially with the orthographic projection of the shield wiring on the base. The display panel according to claim 6.

13. The orthographic projection of the via hole on the base is located outside the orthographic projection of the shield wiring on the base. In the shield region, the orthographic projection of the via hole on the base is located between the orthographic projections of two adjacent shield wirings on the base. The display panel according to claim 12.

14. The display panel includes a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer stacked and arranged in order along the direction away from the base. The fourth metal layer includes the shield layer. The display panel further includes a second organic layer located on the side closer to the base of the shield layer. The display panel further includes a first planarization layer located between the third metal layer and the fourth metal layer, and the second organic layer includes the first planarization layer. The display panel further includes a second planarization layer located on the side of the fourth metal layer away from the substrate, and the first organic layer includes the second planarization layer, characterized in that The display panel according to claim 13.

15. 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 that are sequentially stacked and arranged along the direction away from the substrate, The first electrode layer includes the shield layer, The first electrode layer is located between the first organic layer and the inorganic layer, The first electrode layer includes an anode, characterized in that The display panel according to claim 13.

16. The non-display area further includes a driving circuit area located between the display area and the shield area, Driving circuit wirings are arranged in the driving circuit area, characterized in that The display panel according to claim 6.

17. The display panel further includes a first electrode layer, a light-emitting layer, and a second electrode layer that are sequentially stacked and arranged along the direction away from the substrate, The first electrode layer includes a first electrode, the second electrode layer includes a second electrode, an isolation opening is arranged in the isolation structure, the isolation opening is located in the display area, the second electrode is located in the isolation opening, and is electrically connected to the isolation structure, In the display area, the orthographic projection of the isolation structure on the substrate presents a reticular structure, The light-emitting layer includes a light-emitting portion located in the isolation opening, characterized in that The display panel according to claim 1.

18. The display panel further includes a pixel defining layer located on the side of the first electrode layer away from the substrate, The pixel defining layer includes a pixel opening for 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, The inorganic layer includes the pixel defining layer, characterized in that The display panel according to claim 17.

19. The display panel further includes a first inorganic encapsulation layer located on the side of the second electrode layer away from the substrate, The first inorganic encapsulation layer includes a plurality of encapsulation units, The encapsulation unit extends from the side surface of the isolation structure to the side away from the substrate of the isolation structure, The display panel further includes an organic encapsulation layer located on a side away from the substrate of the first inorganic encapsulation layer, and the organic encapsulation layer extends from the display area to the non-display area to fill the via hole. The display panel further includes a second inorganic encapsulation layer located on a side away from the substrate of the organic encapsulation layer, and the second inorganic encapsulation layer extends from the display area to the non-display area. The display panel according to claim 17.

20. The isolation structure includes a first isolation portion and a second isolation portion that are sequentially stacked and arranged along 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. The display panel according to claim 17.

21. 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 facing the substrate of the first isolation portion, and the second electrode is electrically connected to the third isolation portion. The display panel according to claim 20.

22. A method for manufacturing a display panel, The display panel includes a display area and a non-display area, the non-display area includes a first frame area, and the method for manufacturing 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 away from the substrate of the first organic layer, exposing at least a part of the first organic layer in the inorganic layer, and opening a via hole located in the first frame area; Forming an isolation structure on a side away from the substrate of the inorganic layer, the isolation structure extending from the display area to the non-display area, and a positive projection of the via hole on the substrate is located outside a positive projection of the isolation structure on the substrate. A method for manufacturing a display panel.

23. An electronic device, characterized by including the display panel according to claim 1.

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