Display panel, method for manufacturing a display panel, and electronic device.

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] The present application relates to the field of display technology, and specifically relates to a display panel, a method for manufacturing a display panel, and an electronic device. Background Art

[0002] Flat display devices based on technologies such as Organic Light Emitting Diode (OLED) and Light Emitting Diode (LED) have the advantages of high image quality, power saving, thin body and wide application range, so 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 Invention Problem to be Solved by Invention

[0003] However, the reliability of display panels in related technologies is insufficient. Means for Solving Problem

[0004] To overcome the technical problem mentioned in the above technical background, an embodiment of the present application provides a display panel including a display area and a non-display area, wherein the non-display area includes a first bezel area, and the display panel comprises: a base; a first organic layer located on one side of the base; an inorganic layer located on a side of the first organic layer away from the base, wherein the inorganic layer exposes at least a portion of the first organic layer and is provided with a via hole located in the first bezel area; and an isolation structure located on a side of the inorganic layer away from the base, wherein 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.

[0005] In some possible embodiments, the number of beer halls is multiple; Preferably, the multiple via holes are uniformly arranged; Preferably, the orthographic projection shape of the base of the via hole is at least one of rhombic, circular, or rectangular; Preferably, the first frame region includes a first frame subregion and a second frame subregion located on both sides of the display region and facing each other along a first direction; Preferably, the display panel further includes scan lines, and the first direction is the direction in which the scan lines extend across the display area; Preferably, the non-display area further includes a second frame area containing a bonding area, and the first frame area further includes a third frame sub-area located on the side of the display area away from the second frame area; Preferably, the second frame region and the third frame sub-region are arranged along the 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 at its base is located on the side away from the display area from the orthographic projection of the isolation structure at its base; Preferably, the non-display area surrounds the display area by at least a portion.

[0006] In some possible embodiments, the display panel further includes a dam structure located in the non-display area, the non-display area further includes a shield area, and the dam structure is located on the side of the shield area away from the display area; Preferably, the density of via holes located in the shield region is less than the density of via holes in the region where the shield region is 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 closest 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 hole located in the shield region is smaller than the diameter of the via hole in the region where the shield region is closer to the dam structure; Preferably, the diameter of the via hole gradually increases along the direction from the shield region to the dam structure; Preferably, the spacing between adjacent via holes located in the shield region is greater than the spacing between adjacent via holes in the region of the shield region closer to the dam structure; Preferably, the spacing between adjacent via holes gradually decreases along the direction from the shield region to the dam structure; Preferably, the orthographic diameter of the via hole near the base is in the range of 10 μm to 20 μm; Preferably, the spacing between adjacent via holes is in the range of 3 μm to 10 μm.

[0008] In some possible embodiments, the shield region comprises a shield layer located on the side of the inorganic layer closer to the base, the shield layer comprising a plurality of shield wirings, and the display panel further comprises a touch layer located on the side of the isolation structure away from the base, the touch layer comprising a plurality of touch electrodes, the orthographic projection of the touch electrodes at the base at least partially overlapping with the orthographic projection of the shield wiring at the base.

[0009] In some possible embodiments, the orthographic projection of the via hole at its base is located elsewhere than the orthographic projection of the shielded wiring at its base; Preferably, in the shield region, the orthographic projection of the via hole at its base is located between the orthographic projections of the bases of two adjacent shield wirings.

[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, stacked in order along the direction away from the base, wherein the fourth metal layer includes the shielding layer; Preferably, the display panel further includes a second layer located on the side of the shield layer closer to the base; 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 base, 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 arranged in a stacked manner along a direction away from the base, wherein 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.

[0012] In some possible embodiments, the non-display area further includes a drive circuit area located between the display area and the shield area, the drive circuit area containing the drive circuit wiring; Preferably, the drive circuit wiring includes scanning control wiring and light emission control wiring.

[0013] In some possible embodiments, the display panel further comprises a first electrode layer, a light-emitting layer and a second electrode layer that are sequentially stacked in a direction away from the base, the first electrode layer comprises a first electrode, the second electrode layer comprises a second electrode, an isolation opening is provided 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, an orthographic projection of the isolation structure on the base presents a mesh structure; Preferably, the light-emitting layer comprises a light-emitting portion located in the isolation opening; Preferably, the display panel further comprises a pixel defining layer located on a side of the first electrode layer away from the base, the pixel defining layer comprises a pixel opening exposing the first electrode, an orthographic projection of the isolation structure on the base is located between orthographic projections of two adjacent pixel openings on the base, and an orthographic projection of the pixel opening on the base is located within an orthographic projection of the isolation opening on the base; Preferably, the inorganic layer comprises the pixel defining layer.

[0014] In some possible embodiments, the display panel further comprises a first inorganic encapsulation layer located on a side of the second electrode layer away from the base, the first inorganic encapsulation layer comprises 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 base; Preferably, the display panel further comprises an organic encapsulation layer located on a side of the first inorganic encapsulation layer away from the base, the organic encapsulation layer extends from the display area to the non-display area and fills the via hole; Preferably, the display panel further comprises a second inorganic encapsulation layer located on a side of the organic encapsulation layer away from the base, and the second inorganic encapsulation layer extends from the display area to the non-display area.

[0015] In some possible embodiments, the isolation structure comprises a first isolation portion and a second isolation portion that are sequentially stacked along a direction away from the base, wherein an orthographic projection of the first isolation portion on the base is located within an orthographic projection of the second isolation portion on the base.

[0016] In some possible embodiments, the second electrode is electrically connected to the first isolation portion, and / or the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the base, and the second electrode is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion comprises molybdenum metal, and / or the material of the first isolation portion comprises aluminum metal, and / or the material of the second isolation portion comprises titanium metal.

[0017] In some possible embodiments, the present application provides a method for manufacturing a display panel comprising a display area and a non-display area, wherein the non-display area comprises a first frame area, and the method for manufacturing a display panel comprises: providing a base; forming a first organic layer on one side of the base; forming an inorganic layer on a side of the first organic layer away from the base, and forming a via hole that exposes at least a part of the first organic layer and is located in the first frame area; forming an isolation structure on a side of the inorganic layer away from the base, wherein the isolation structure extends from the display area to the non-display area, and an orthographic projection of the via hole on the base is located outside an orthographic projection of the isolation structure on the base; the present application further provides a method for manufacturing a display panel comprising the above steps.

[0018] In some possible embodiments, the present application further provides an electronic device comprising 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 method for manufacturing the display panel, and the electronic device according to the present invention increase the number of gas release pathways in the inorganic layer by providing via holes in the inorganic layer that expose at least a portion of the first organic layer, thereby making it easier to discharge gas from the screen and improving the reliability of the display panel. [Brief explanation of the drawing]

[0021] To more clearly illustrate the technical concept of the embodiments of this application, the drawings that may be used in the embodiments are briefly described below. It should be understood that the following drawings only show a few embodiments of this application and should not be considered limiting. Those skilled in the art can also obtain other relevant drawings by following these drawings without any creative effort. [Figure 1] This is a schematic cross-sectional view of a display panel in the related technology relating to an embodiment of the present application. [Figure 2] This is a schematic cross-sectional view of a display panel according to an embodiment of the present invention. [Figure 3] This is a schematic cross-sectional view of a display panel according to an embodiment of the present application, including the shield layer. [Figure 4] This is a schematic plan view of a display panel according to an embodiment of the present invention. [Figure 5] This is the first schematic plan view of the base of a via hole according to an embodiment of the present invention. [Figure 6] This is the second schematic plan view of the base of the via hole according to an embodiment of the present invention. [Figure 7] This is the third schematic plan view of the base of the via hole according to an embodiment of the present invention. [Figure 8] This is a schematic cross-sectional view of the embodiment of the present application when the shield layer is located in the fourth metal layer. [Figure 9] This is a schematic cross-sectional view showing the display area of ​​a display panel according to an embodiment of the present application, which includes four metal layers. [Figure 10] This is a schematic cross-sectional view of the embodiment of the present application when the shield layer is located in the anode layer. [Figure 11]This is a schematic cross-sectional view of a display panel according to an embodiment of the present application, in which the display area includes the anode layer. [Figure 12] This is a schematic cross-sectional view of the display area when the isolation structure according to the embodiment of the present application divides the second electrode layer. [Figure 13] This is a schematic plan view showing that the orthogonal projection of the base of the isolation structure according to the embodiment of the present application exhibits a mesh-like structure. [Figure 14] This is a schematic cross-sectional view of the display area when the isolation structure according to the embodiment of the present application divides the first inorganic sealing layer. [Figure 15] This is a schematic cross-sectional view of the display area of ​​the display panel according to an embodiment of the present application, including an organic sealing layer. [Figure 16] This is a schematic cross-sectional view showing that the organic sealing layer according to the embodiment of the present application extends to the non-display area. [Figure 17] This is a schematic cross-sectional view of the display area when the display panel according to the embodiment of the present application includes a second inorganic sealing layer. [Figure 18] This is a schematic cross-sectional view showing that the second inorganic sealing layer according to the embodiment of the present application extends to the non-display area. [Figure 19] This is a schematic cross-sectional view of an embodiment of the present invention in which the isolation structure includes a three-layer structure. [Figure 20] This is a flowchart of one method for manufacturing a display panel according to an embodiment of the present invention. [Figure 21] This is a schematic cross-sectional view of an embodiment of the present invention in which an organic layer is formed on one side of the base. [Figure 22] This is a schematic cross-sectional view showing an embodiment of the present invention in which an inorganic layer is formed on the side away from the base of the organic layer, and via holes are opened in the inorganic layer. [Modes for carrying out the invention]

[0022] To further clarify the purpose, technical proposal, and advantages of the embodiments of this application, the technical proposal of the embodiments of this application will be described clearly and completely below with reference to the drawings of the embodiments. Clearly, the embodiments described are some, but not all, embodiments of this application. Herein, the components of the embodiments of this application shown in the drawings can typically be arranged / designed in a variety of different configurations.

[0023] Accordingly, the detailed description of embodiments of the present application provided below in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only to illustrate selected embodiments of the present application. All other embodiments obtained by a person skilled in the art without creative work based on the embodiments of the present application are within the scope of the present application.

[0024] It should be noted that in the following drawings, the same reference numerals and letters indicate the same item; therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] Furthermore, in the description of this application, directions or positional relationships indicated by terms such as "center," "up," "down," "vertical," "horizontal," "inside," and "outside" are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the product of the invention is always positioned when it is used. These are merely for the convenience and simplification of the description of this application and do not indicate or imply that the specified device or element has a specific direction or must be configured and operated in a specific direction, and should not be understood as limiting this application. In addition, terms such as "first," "second," and "third" are merely for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0026] Furthermore, different features in the embodiments of this application may be combined with each other, as long as they do not contradict each other.

[0027] Referring to Figure 1, the display panel in the related technology includes a display area AA and a non-display area AB, and 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 of the first organic layer 2 away from the base 1, and an isolation structure 4 located on the side of the inorganic layer 3 away from the base 1, wherein 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] During the manufacturing process of the display panel, gas is generated in the film layer. While this gas can move between the organic layers, it has difficulty moving between the inorganic layers 3. Because the inorganic layer 3 is located on the side closer to the base 1 of the isolation structure 4, the gas on the side of the inorganic layer 3 closer to the base 1 cannot permeate through the inorganic layer 3 and be discharged. This easily leads to the failure of the seal after reliability testing, reducing the reliability of the display panel.

[0029] In view of this, this embodiment provides a method for improving the reliability of the display panel, and the method according to this embodiment will be described in detail below.

[0030] Referring to Figures 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, and 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 of the first organic layer 2 away from the base 1, and via holes 31 are made in the inorganic layer 3 that expose at least a portion of the first organic layer 2, the via holes 31 are located in the first frame region 25, the isolation structure 4 is located on the side of the inorganic layer 3 away from the base 1, the isolation structure 4 extends from the display region AA to the non-display region AB, and the orthographic projection of the via holes 31 on the base 1 is located elsewhere than the orthographic projection of the isolation structure 4 on the base 1.

[0032] The gas generated in the screen film layer can move through 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 base 1 of the isolation structure 4, the isolation structure 4 cannot prevent the via hole 31 from releasing gas. Thus, because the display panel has a path for releasing gas, the gas within the screen can be released more easily, making it less likely to cause seal failure after reliability testing and improving the reliability of the display panel.

[0033] Based on the above design, this embodiment increases the number of gas release paths in the inorganic layer 3 by providing via holes 31 that expose at least a portion of the first organic layer 2 in the inorganic layer 3. This makes it easier to discharge gas from the screen and, consequently, improves the reliability of the display panel.

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

[0035] The shield layer 5 has a touch electrode 61 on the side away from the base 1, and signal wiring with voltage jumps on the side closer to the base 1, such as data signal wiring (data) and control signal wiring. Voltage jumps in these signal wirings affect the touch accuracy of the touch electrode 61. The shield layer 5 includes shield wiring 51, which is less prone to voltage jumps. For example, the shield wiring 51 is used to transmit drive voltage (VDD), common voltage (VSS), or reset voltage (Vref). Thus, the shield layer 5 is placed between the touch electrode 61 and the signal wiring, and the voltage of the shield wiring 51 of the shield layer 5 is less prone to jumps, which improves the touch accuracy of the touch electrode 61.

[0036] In some possible embodiments, referring again to Figure 3, the number of via holes 31 is multiple. Thus, having multiple paths for venting gas within the screen can further increase the amount of gas overflow within the screen, thereby further improving the problem of sealing failure of the display panel.

[0037] Preferably, referring again to Figure 3, the via hole 31 is located in the non-display area AB, and by locating the gas discharge path in the non-display area AB in this way, it does not affect the display effect of the display area AA.

[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 need to extend to the side away from the base 1 of the via hole 31, and in this way, the isolation structure 4 does not block the gas discharged from the via hole 31, allowing the gas to be discharged more easily.

[0039] Preferably, again referring to Figure 4, the non-display area AB at least partially encloses the display area AA, the first frame area 25 includes a first frame sub-area 251 and a second frame sub-area 253 located on both sides of the display area AA and arranged opposite each other along a 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 located on the side of the display area AA away from the second frame area 26, 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 region 261 can bond the circuit base, the second frame region 26 is the lower frame of the display panel, the first frame sub-region 251 and the second frame sub-region 253 are the left and right frames of the display panel, respectively, and the third frame sub-region 252 is the upper frame of the display panel. Thus, the via holes 31 may be arranged in the upper, left, and right frames of the display panel, and the gas in the screen can be discharged from the upper, left, and right frames of the display panel.

[0041] Preferably, the orthographic shape of the base 1 of the via hole 31 is at least one of a rhombus, a circle, or a square, and the via hole 31 can be arranged in different shapes as required in practice, but is not limited thereto.

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

[0043] If the via hole 31 is positioned so that its orthographic projection on its base 1 overlaps with the orthographic projection on its base 1 with the shield wiring 51, the gas in the film layer on the side of the shield wiring 51 closer to its base 1 is blocked by the shield wiring 51 and has difficulty reaching the via hole 31, and the gas inside the screen has difficulty being discharged through the via hole 31.

[0044] In this embodiment, if the orthographic projection of the via hole 31 on the base 1 does not overlap with the orthographic projection of the shield wiring 51 on the base 1, the shield wiring 51 is less likely to prevent gas on the side of the shield wiring 51 closer to the base 1 from reaching the via hole 31. This makes it easier to discharge gas within the screen, and consequently further improves the reliability of the display panel.

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

[0046] Multiple beer halls 31 may be arranged in a differentiated manner.

[0047] In some embodiments, referring again to Figure 5, the multiple via holes 31 are uniformly arranged. In this way, the shape, size, and spacing of all via holes 31 may be the same, which makes it easier to arrange the via holes 31 and reduces the cost of arranging them.

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

[0049] Since the shield wiring 51 is located in the shield region AC, and the orthographic projection of the via hole 31 on the base 1 is located outside the orthographic projection of the shield wiring 51 on the base 1, the density of via holes 31 in the shield region AC is arranged to be smaller than the density of via holes 31 in the region on the side of the shield region AC closer to the dam structure 7, thereby increasing the gas discharge path. Furthermore, since the size and spacing of the via holes 31 in the shield region AC are the same, and the size and spacing of the via holes 31 from the side of the shield region AC closer to the dam structure 7 to the dam structure 7 are the same, corresponding via holes 31 can be arranged more easily.

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

[0051] Specifically, the diameter of the via holes 31 located in the shield zone is smaller than the diameter of the via holes 31 in the zone on the side of the shield zone that is closer to the dam structure 7.

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

[0053] Specifically, the spacing between adjacent via holes 31 located in shield area AC is greater than the spacing between adjacent via holes 31 in the area on the side of shield area AC that is closer to the dam structure 7.

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

[0055] In this embodiment, the via holes 31 can be further differentiated and arranged in the non-display area AB according to the arrangement of the shield wiring 51 in the shield area AC. This allows for the placement of more via holes 31 in the non-display area AB, thereby increasing the number of gas discharge paths within the screen and ultimately improving the effectiveness of gas discharge within the screen.

[0056] Preferably, referring to Figure 7, the orthographic diameter φ on the side of the via hole 31 closer to the base 1 is in the range of 10 μm to 20 μm, for example, the diameter φ can be 10 μm, 12 μm, 15 μm, 18 μm, or 20 μm. By rationally arranging the diameter φ, more gas exhaust paths can be placed in the non-display area AB, thereby improving the gas exhaust effect within the screen.

[0057] Preferably, referring to Figure 7, the spacing D between adjacent via holes 31 is in the range of 3 μm to 10 μm, for example, spacing D can be 3 μm, 5 μm, 8 μm, or 10 μm. By rationally arranging the spacing D, more gas exhaust paths can be placed in the non-display area AB, thereby improving the gas exhaust effect within the screen.

[0058] In some possible embodiments, referring 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 arranged in order along the direction away from the base 1, wherein 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 of the shield layer 5 closer to the base 1.

[0059] Referring 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 electrode 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 electrode 102 and a source electrode 101, the drain electrode 102 is electrically connected to the drain region and 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, and the fourth metal layer 11 includes metal wiring, 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, and the metal wiring in the fourth metal layer 11 includes the shield wiring 51. The shield layer 5 can shield the signal wiring on the side of the fourth metal layer 11 closer to the base 1 from affecting the touch electrode 61 in the touch layer 6.

[0061] In some possible embodiments, referring again to Figure 8, the non-display area AB further includes a drive circuit area AD located between the display area AA and the shield area AC, and the drive circuit area AD includes drive circuit wiring, for example, the drive circuit wiring includes scan control wiring and light emission control wiring. The scan control wiring and light emission control wiring can control the light emission of light-emitting subpixels in the display area AA.

[0062] Preferably, referring again to 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.

[0063] Referring again to Figure 8, the first flattening layer 13 extends from the display area AA to the non-display area AB, and the second organic layer 12 is the first flattening layer 13. The gas in the screen film layer reaches the first organic layer 2 from the first flattening layer 13, and 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 flattening layer 13 in the display area AA can be used as the second organic layer 12, and there is no need to specifically place the second organic layer 12 in the non-display area AB, thus reducing the cost of specifically placing the second organic layer 12.

[0064] Preferably, referring again to 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 base 1, and the first organic layer 2 includes the second planarization layer 14.

[0065] Referring again to Figure 8, the second flattening layer 14 extends from the display area AA to the non-display area AB, and the first organic layer 2 is the second flattening layer 14. The gas reaches the via hole 31 from the second flattening layer 14 and is discharged from the via hole 31. In this way, the second flattening layer 14 in the display area AA can be used as the first organic layer 2, and there is no need to specifically place the first organic layer 2 in the non-display area AB, thus reducing the cost of specifically placing the first organic layer 2.

[0066] In some possible embodiments, referring 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, which are stacked in order along the direction away from the base 1, and 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 shield wiring 51. In this way, the conductive wiring of the first electrode layer 15 can be used to shield the touch wiring of the touch layer 6 and the signal wiring located on the side of the shield layer 5 closer to the base 1, eliminating the need to specifically place the shield layer 5 in the non-display area AB and reducing the cost of specifically placing the shield layer 5.

[0068] In some possible embodiments, referring to Figure 12, in display area AA, the display panel further includes a pixel definition layer 16 located on the side of the first electrode layer 15 away from the base 1, the pixel definition layer 16 includes a pixel aperture 20 that exposes a first electrode 151, and the isolation structure 4 is located on the side of the pixel definition layer 16 away from the base 1. The first electrode layer 15 includes a plurality of spaced-apart first electrodes 151, the first electrodes 151 being anodes. The orthographic projection of the isolation structure 4 on the base 1 lies between the orthographic projections of two adjacent pixel apertures 20 on the base 1, and the orthographic projection of the pixel apertures 20 on the base 1 lies within the orthographic projection of the isolation aperture 17 on the base 1.

[0069] The display panel further includes a light-emitting layer 18 and a second electrode layer, which are located on the first electrode layer 15 and are stacked sequentially along the direction away from the base 1. The second electrode layer includes a second electrode 19, which is the cathode. The light-emitting layer 18 includes a light-emitting portion. An isolation opening 17 is located in the isolation structure 4, which 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 light-emitting subpixels, which can be red subpixels, green subpixels, or blue subpixels.

[0070] When forming the second electrode layer, the isolation structure 4 divides the second electrode layer and forms a plurality of second electrodes 19 that are spaced apart, and at least some of the second electrodes 19 extend from within the pixel aperture 20 to the side away from the base 1 of the pixel definition layer 16 and are in electrical contact with the isolation structure 4.

[0071] Preferably, the inorganic layer 3 includes a pixel definition layer 16, the pixel definition layer 16 extends from the display area AA to the non-display area AB, and the pixel definition layer 16 can have via holes 31 in the non-display area AB. In this way, since there is no need to specifically arrange the inorganic layer 3, the cost of arranging the inorganic layer 3 can be reduced.

[0072] Preferably, referring to Figure 13, in the display area AA, the orthogonal projection of the base 1 of the isolation structure 4 exhibits a mesh-like 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 each located within the isolation opening 17.

[0073] In some possible embodiments, referring to Figure 14, the display panel further includes a first inorganic sealing layer 21 located on the side away from the base 1 of the second electrode layer, the first inorganic sealing layer 21 comprising a plurality of sealing units 211, the sealing units 211 extending from the side 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 closer to the base 1, a side further away from the base 1, and a side surface. Adjacent sealing units 211 are spaced apart on the side of the isolation structure 4 further away from the base 1. Each sealing unit 211 independently seals multiple light-emitting subpixels, thereby separating the light-emitting subpixels from one another, improving the reliability of the sealing, and further optimizing the optical performance of the display panel.

[0075] Preferably, referring to Figures 15-16, 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 extending from the display area AA to the non-display area AB and filling the via holes 31.

[0076] The organic sealing layer 22 can further improve the sealing effect on the light-emitting subpixels, and the gas that reaches the organic sealing layer 22 from the via hole 31 can also be led out through the organic sealing layer 22.

[0077] Preferably, referring to Figures 17-18, the display panel further includes a second inorganic sealing layer 23 located on the side away from the base 1 of the organic sealing layer 22, the second inorganic sealing layer 23 extending from the display area AA to the non-display area AB. The second inorganic sealing layer 23 can further improve the sealing effect on the light-emitting subpixels.

[0078] In some possible embodiments, referring again to Figure 14, the isolation structure 4 includes a first isolation section 41 and a second isolation section 42 stacked in order along the direction away from the base 1, such that the orthographic projection of the first isolation section 41 on the base 1 lies within the orthographic projection of the second isolation section 42 on the base 1.

[0079] Since the second isolation portion 42 is located on the side of the first isolation portion 41 that is away from the base 1, and the width of the second isolation portion 42 is greater than the width of the first isolation portion 41, the second isolation portion 42 separates 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 and independently seal each light-emitting subpixel.

[0080] In some possible embodiments, again referring to Figure 14, the second electrode 19 is electrically connected to the first isolation portion 41, and, referring 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 toward the base 1, 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. Thus, 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, by providing via holes 31 in the inorganic layer 3 that expose at least a portion of the first organic layer 2, the present invention can increase the number of gas release pathways in the inorganic layer 3, thereby making it easier to discharge gas from the screen and, consequently, improving the reliability of the display panel.

[0082] In some possible embodiments, with reference to Figure 20, the present application provides a method for manufacturing a display panel, the display panel comprising a display area AA and a non-display area AB, the non-display area AB comprising a first frame area 25, and the method for manufacturing the display panel is as follows: S10: To provide base 1, S11: Forming the first organic layer 2 on one side of base 1, (Refer to Figure 21, and form the first organic layer 2 on one side of base 1.) S12: An inorganic layer 3 is formed on the side of the first organic layer 2 that is away from the base 1, and at least a portion of the first organic layer 2 is exposed in the inorganic layer 3, and a via hole 31 is opened that is located in the first frame region 25, Referring to Figure 22, after forming an inorganic layer 3 on the side of the first organic layer 2 away from the base 1, a via hole 31 can be opened in the inorganic layer 3 to expose at least a portion of the first organic layer 2 by exposure and development. S13: Includes the formation of an isolation structure 4 on the side of the inorganic layer 3 away from the base 1, the isolation structure 4 extending from the display area AA to the non-display area AB, and the orthographic projection of the via hole 31 on the base 1 being located outside the orthographic projection of the isolation structure 4 on the base 1.

[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 base 1 is located outside the orthographic projection of the base 1 of the isolation structure 4, the isolation structure 4 cannot prevent the via hole 31 from releasing gas. In this way, the display panel has a path for releasing gas, making it easier to release gas from within the screen, which reduces the likelihood of seal failure after reliability testing and improves the reliability of the display panel.

[0084] In some possible embodiments, the present application further provides electronic devices including the display panel described herein. Such electronic devices may include devices having image processing capabilities, such as servers, personal computers, and laptop computers. Because such electronic devices include the display panel described herein, the reliability of such electronic devices is higher.

[0085] The technical features of the above embodiments can be combined in any way, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as these combinations of technical features are inconsistent, they should be considered to fall within the scope described herein.

[0086] The above embodiments merely illustrate some of the embodiments of the present application, and while the description is more specific and detailed, it cannot be understood as limiting the scope of the claims. A person skilled in the art can make some modifications and improvements without departing from the spirit of the present application, and all of these fall within the scope of protection. Therefore, the scope of protection of the present application is the same as the scope of the claims. [Explanation of Symbols]

[0087] 1 Base, 2 First Organic Layer, 3 Inorganic Layer, 31 Via Hole, 4 Isolation Structure, 41 First Isolation Section, 42 Second Isolation Section, 43 Third Isolation Section, 5 Shield Layer, 51 Shield Wiring, 6 Touch Layer, 61 Touch Electrode, 7 Dam Structure, 8 First Metal Layer, 81 Gate Electrode, 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 Aperture, 18 Light-Emitting Layer, 19 Second Electrode, 20 Pixel Aperture, 21 First Inorganic Sealing Layer, 211 Sealing Unit, 22 Organic Sealing Layer, 23 Second Inorganic Sealing Layer, 24 Scan 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. It is a display panel, It includes a display area and a non-display area, the non-display area includes a first frame area, and at least a portion of the first frame area surrounds the display area. The aforementioned display panel is Base and, The first organic layer located on one side of the base, An inorganic layer located away from the base of the first organic layer, with at least a portion of the first organic layer exposed and via holes located in the first frame region being formed therein, A separation structure located on the side of the inorganic layer away from the base, The organic sealing layer filling the via hole is included, The isolation structure extends from the display area to the non-display area, and the orthographic projection of the via hole at the base is located outside the orthographic projection of the isolation structure at the base. The display panel further includes a first electrode layer, a light-emitting layer, and a second electrode layer arranged in order along the direction away from the base, The first electrode layer includes a first electrode, the second electrode layer includes a second electrode, the isolation structure has an isolation opening, the second electrode is located within the isolation opening and is electrically connected to the isolation structure, and so on. Display panel.

2. The number of beer halls is multiple, The display panel according to claim 1.

3. The multiple beer holes are uniformly arranged, The display panel according to claim 2.

4. The first frame region includes a first frame sub-region and a second frame sub-region located on both sides of the display region and arranged opposite to each other along a first direction, The display panel further includes scan lines, and the first direction is the direction in which the scan lines extend within the display area. The display panel according to claim 2.

5. The orthographic projection of the base of the via hole is characterized in that the orthographic projection of the base of the isolation structure is located on the side away from 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 aforementioned non-display area further includes a shield area, The shield region is provided with a shield layer located on the side of the inorganic layer closest to the base. The dam structure is characterized in that it is located on the side of the shield region away from the display region. The display panel according to claim 2.

7. The density of the via holes located in the shield region is characterized in that it is smaller than the density of the via holes in the region on the side of the shield region 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 region closest to the dam structure to the dam structure, characterized in that 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 hole located in the shield region is smaller than the diameter of the via hole in the region where the shield region is closer to the dam structure. The diameter of the via hole 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 greater than the distance between adjacent via holes in the region of the shield region that is 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. 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 at its base overlaps at least partially with the orthographic projection of the shield wiring at its base, The display panel according to claim 6.

13. The orthographic projection of the via hole at the base is located outside the orthographic projection of the shield wiring at the base. In the shield region, the orthographic projection of the via hole at its base is located between the orthographic projections of the bases of two adjacent shield wirings, characterized in that 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 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 of the shield layer closer to the base, 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 base, 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, which are stacked in order along the direction away from the base. The first electrode layer includes the shielding layer, The preceding first electrode layer is located between the preceding first organic layer and the inorganic layer. The first electrode layer is characterized by including an anode. The display panel according to claim 13.

16. The non-display area further includes a drive circuit area located between the display area and the shield area, The drive circuit region is characterized in that drive circuit wiring is arranged therein. The display panel according to claim 6.

17. The isolation opening is located in the display area, In the aforementioned display area, the orthographic projection of the base of the isolation structure exhibits a mesh-like structure. The light-emitting layer is characterized in that it includes a light-emitting portion located within the isolation opening. The display panel according to claim 1.

18. The display panel further includes a pixel definition layer located on the side of the first electrode layer away from the base, The pixel definition layer includes a pixel aperture that exposes the first electrode, the orthogonal projection of the base of the isolation structure is located between the orthogonal projections of the bases of two adjacent pixel apertures, and the orthogonal projection of the base of the pixel aperture is located within the orthogonal projection of the base of the isolation aperture. The inorganic layer is characterized in that it includes the pixel definition layer. The display panel according to claim 17.

19. The display panel further includes a first inorganic sealing layer located on the side of the second electrode layer away from the base, The first inorganic sealing layer includes a plurality of sealing units, The sealing unit extends from the side of the isolation structure to the side away from the base of the isolation structure, The organic sealing layer is located on the side away from the base of the first inorganic sealing layer, The organic sealing layer extends from the display area to the non-display area. The display panel further includes a second inorganic sealing layer located on the side away from the base of the organic sealing layer, and the second inorganic sealing layer extends from the display area to the non-display area, characterized in that The display panel according to claim 17.

20. The isolation structure includes a first isolation section and a second isolation section arranged in order in a stack along the direction away from the base, The orthographic projection of the base of the first isolation portion is located within the orthographic projection of the base of the second isolation portion, characterized in that 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 the side of the first isolation portion toward the base, 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 according to Claim 1, 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 is: To provide a base, A first organic layer is formed on one side of the base, An inorganic layer is formed on the side of the first organic layer away from the base, at least a portion of the first organic layer is exposed to the inorganic layer, and a via hole is opened in the first frame region. The present invention is characterized by comprising: forming an isolation structure on the side of the inorganic layer away from the base, the isolation structure extending from the display area to the non-display area, and the orthogonal projection of the via hole at the base being located elsewhere than the orthogonal projection of the isolation structure at the base, A method for manufacturing a display panel.

23. An electronic device characterized by including the display panel described in claim 1.

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