Display panel, preparation method of display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, a pixel defining layer and an isolation layer, the isolation layer is located on one side of the substrate, the isolation layer comprises an isolation structure and a touch electrode which are arranged on the same layer, and the isolation structure defines a plurality of isolation openings; wherein the touch electrodes extend in the first direction, and in the first direction, the minimum distance between the edges of orthographic projections of the sides, away from the substrate, of every two adjacent pixel openings on the substrate is a first size; in the second direction, the minimum distance between the edge of the orthographic projection of the side, close to the touch electrode, of the isolation structure on the substrate and the edge of the orthographic projection of the side, away from the substrate, of the pixel opening on the substrate is a second size, and the second size is smaller than one half of the first size. The width of the touch electrodes can be increased, so that the touch area of the display panel can be increased, and the touch performance of the display panel can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular, to a display panel, a method for preparing a display panel, and an electronic device. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have the advantages of high image quality, power saving, thin body and wide application range, and are widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc., becoming the mainstream in display panels. In the preparation process of traditional display panels, the graphicization of luminous pixels is usually achieved through a fine mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited accuracy, high development cost, and long development cycle. Maskless technology eliminates the limitations of traditional OLED processes on display size, resolution and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN117580403A, CN118678743A, CN118660490A, CN118678724A, CN118678806A, CN118742084A, and CN118946184A record relevant contents of the maskless technology for reference.

[0003] However, there are still some problems with display panels that need to be solved urgently. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, wherein the display panel includes:

[0005] substrate;

[0006] A pixel defining layer, located on one side of the substrate, and having a pixel opening formed on the pixel defining layer;

[0007] an isolation layer, located on a side of the pixel defining layer away from the substrate, the isolation layer comprising an isolation structure and a touch electrode arranged in the same layer, the isolation structure being insulated from adjacent touch electrodes, the isolation structure enclosing a plurality of isolation openings, and the isolation openings being connected to the pixel openings;

[0008] In which, the touch electrode extends along a first direction, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent pixel openings on the substrate away from the side of the substrate is a first size; along the second direction, the minimum distance between the edges of the orthographic projections of the side of the isolation structure close to the touch electrode on the substrate and the edge of the orthographic projections of the side of the pixel opening away from the substrate on the substrate is a second size, the second size is smaller than half of the first size, and the second direction intersects with the first direction.

[0009] In some possible implementations, along the second direction, a size of an orthographic projection of the touch electrode on the substrate is greater than or equal to 10 μm and less than or equal to 12 μm;

[0010] Preferably, the touch electrodes are configured as self-capacitance detection electrodes;

[0011] Preferably, the second direction is perpendicular to the first direction.

[0012] In some possible implementations, the display panel further includes a light emitting unit located in the isolation opening, the light emitting unit including a first electrode, a light emitting portion, and a second electrode sequentially stacked in a direction away from the substrate, and a portion of the second electrode overlaps the isolation structure;

[0013] Preferably, the orthographic projection of the side of the isolation structure facing the substrate on the substrate includes a first edge and a second edge that are oppositely arranged, and a third edge and a fourth edge that are oppositely arranged, the orthographic projection of the second electrode on the substrate is located outside the first edge and the second edge, and the third edge and the fourth edge are located inside the orthographic projection of the second electrode on the substrate;

[0014] Preferably, there are multiple isolation structures, the isolation structures extend along the first direction, and the multiple isolation structures are arranged along the second direction. The display panel also includes connecting wires extending along the second direction, and the connecting wires are electrically connected to the multiple isolation structures arranged along the second direction.

[0015] In some possible implementations, the first edge and the second edge extend along the first direction;

[0016] Preferably, the third edge and the fourth edge extend along the second direction.

[0017] In some possible implementations, the dimensions of the first edge and the second edge extending along the first direction are smaller than the dimensions of the third edge and the fourth edge extending along the second direction;

[0018] Preferably, the first edge, the third edge, the second edge and the fourth edge are connected in sequence.

[0019] In some possible implementations, the second size is greater than or equal to 3 μm and less than or equal to 5 μm;

[0020] Preferably, the first size is greater than or equal to 8 μm and less than or equal to 12 μm;

[0021] Preferably, a distance between orthographic projections of adjacent isolation structures and touch electrodes on the substrate is greater than or equal to 3 μm and less than or equal to 4 μm.

[0022] In some possible implementations, the display panel further includes a conductive layer located between the isolation layer and the substrate, the conductive layer includes a plurality of conductive traces extending along the second direction, and the plurality of conductive traces are electrically connected to the touch electrodes.

[0023] In some possible implementations, there are multiple touch electrodes, the multiple touch electrodes are arranged along the second direction, and a pattern formed by the orthographic projections of the multiple touch electrodes on the substrate and the orthographic projections of the multiple conductive traces on the substrate includes multiple grids;

[0024] Preferably, the display panel also includes a light-emitting unit located in the isolation opening, and the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit having different light-emitting colors, and the orthographic projections of adjacent first light-emitting unit, second light-emitting unit and third light-emitting unit on the substrate are located in a grid.

[0025] In some possible implementations, the conductive layer includes a plurality of sub-conductive layers stacked in sequence in a direction away from the substrate, and the conductive trace is located at a sub-conductive layer closest to the isolation structure;

[0026] Preferably, the conductive layer comprises a first sub-conductive layer, a second sub-conductive layer, a third sub-conductive layer and a fourth sub-conductive layer which are sequentially stacked in a direction away from the substrate, and the conductive trace is located in the fourth sub-conductive layer;

[0027] Preferably, the display panel further comprises an insulating layer located between the fourth sub-conductive layer and the isolation layer, and a first via hole penetrating the insulating layer is provided on the insulating layer in a direction perpendicular to the substrate;

[0028] Preferably, the pixel defining layer is located between the insulating layer and the isolation layer, a second via hole is provided on the pixel defining layer, the second via hole is connected to the first via hole, and the touch electrode is electrically connected to the conductive trace through the second via hole and the first via hole in sequence.

[0029] In some possible embodiments, the isolation opening is formed on a side of the isolation structure away from the substrate, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings on the substrate is a third dimension; along the second direction, the minimum distance between the orthographic projection of a side of the isolation structure close to the touch electrode on the substrate and the edge of the orthographic projection of the isolation opening on the substrate is a fourth dimension, and the fourth dimension is less than half of the third dimension.

[0030] In some possible implementations, the display panel further includes a light emitting unit located in the isolation opening and a first encapsulation layer located on a side of the light emitting unit away from the substrate, the first encapsulation layer includes a plurality of encapsulation units arranged at intervals, and at least a portion of the encapsulation unit extends from a side of the isolation structure toward the isolation opening to a side of the isolation structure away from the substrate;

[0031] Preferably, adjacent packaging units are arranged at intervals on a side of the isolation structure away from the substrate;

[0032] Preferably, the display panel further comprises a second encapsulation layer located on a side of the first encapsulation layer away from the substrate;

[0033] Preferably, the display panel further comprises a third encapsulation layer located on a side of the second encapsulation layer away from the substrate;

[0034] Preferably, the materials of the first encapsulation layer and the third encapsulation layer both include inorganic materials;

[0035] Preferably, the material of the second encapsulation layer includes organic material.

[0036] In some possible implementations, the isolation structure and the touch electrode both include a first isolation portion and a second isolation portion that are sequentially stacked in a direction away from the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate;

[0037] Preferably, the second isolation portion encloses and forms the isolation opening;

[0038] Preferably, the display panel further comprises a light emitting unit located in the isolation opening, wherein along the first direction, the second electrode of the light emitting unit overlaps the first isolation portion, and along the second direction, the orthographic projection of the second electrode of the light emitting unit on the substrate is located outside the orthographic projection of the first isolation portion on the substrate; and / or, the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the substrate, wherein along the first direction, the second electrode overlaps the third isolation portion, and along the second direction, the orthographic projection of the second electrode of the light emitting unit on the substrate is located outside the orthographic projection of the third isolation portion on the substrate;

[0039] Preferably, the material of the third isolation portion includes molybdenum; and / or the material of the first isolation portion includes aluminum; and / or the material of the second isolation portion includes titanium.

[0040] In some possible implementations, the present application further provides a display panel, comprising:

[0041] substrate;

[0042] An isolation layer, located on one side of the substrate, the isolation layer comprising an isolation structure and touch electrodes arranged in the same layer, the isolation structure being insulated from adjacent touch electrodes, and the isolation structure being away from the substrate and enclosing a side thereof to form a plurality of isolation openings;

[0043] In which, the touch electrode extends along a first direction, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings on the substrate is a third dimension; along the second direction, the minimum distance between the orthographic projection of a side of the isolation structure close to the touch electrode on the substrate and the edge of the orthographic projection of the isolation opening on the substrate is a fourth dimension, and the fourth dimension is less than half of the third dimension.

[0044] In some possible implementations, the present application further provides a method for preparing a display panel, the display panel comprising:

[0045] providing a substrate;

[0046] A pixel defining layer is formed on one side of the substrate, wherein a pixel opening is provided on the pixel defining layer;

[0047] An isolation layer is formed on a side of the pixel defining layer away from the substrate, the isolation layer includes an isolation structure and a touch electrode arranged in the same layer, the isolation structure is insulated from adjacent touch electrodes, the isolation structure encloses a plurality of isolation openings, and the isolation openings are connected to the pixel openings; the touch electrodes extend along a first direction, and along the first direction, a minimum distance between edges of the orthographic projections of two adjacent pixel openings away from the substrate on the substrate is a first dimension; along the second direction, a minimum distance between an orthographic projection of a side of the isolation structure close to the touch electrode on the substrate and an edge of the orthographic projection of a side of the pixel opening away from the substrate on the substrate is a second dimension, the second dimension is less than half of the first dimension, and the second direction intersects with the first direction.

[0048] In some possible implementations, the present application further provides an electronic device, which includes the display panel described in the present application, or includes a display panel prepared by the method for preparing the display panel described in the present application.

[0049] Compared with the prior art, this application has the following beneficial effects:

[0050] The present application provides a display panel, a method for manufacturing a display panel, and an electronic device. By setting the second size to be smaller than half of the first size, the width of the touch electrode can be increased, thereby increasing the touch area of ​​the display panel and further improving the touch performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A schematic top view of an isolation layer in a display panel provided in an embodiment of the present application;

[0053] Figure 2 Provided in the embodiments of this application Figure 1 Schematic cross-sectional view at AA in the middle;

[0054] Figure 3 Provided in the embodiments of this application Figure 1 A schematic cross-sectional view of the middle BB;

[0055] Figure 4A schematic top view of an isolation layer, conductive traces, and connecting traces in a display panel provided in an embodiment of the present application;

[0056] Figure 5 Provided for the embodiments of this application Figure 4 Schematic cross-sectional view at CC in the middle;

[0057] Figure 6 The display panel provided in the embodiment of the present application includes one of the cross-sectional schematic diagrams of the first encapsulation layer;

[0058] Figure 7 The display panel provided in the embodiment of the present application includes a second cross-sectional schematic diagram of a first encapsulation layer;

[0059] Figure 8 A display panel provided in an embodiment of the present application includes one of the cross-sectional schematic diagrams of a second encapsulation layer and a third encapsulation layer;

[0060] Fig. 9 The display panel provided in the embodiment of the present application includes a second encapsulation layer and a third encapsulation layer;

[0061] Fig.10 A schematic diagram of a process for preparing a display panel provided in an embodiment of the present application;

[0062] Fig.11 A cross-sectional schematic diagram of forming a first electrode layer on one side of a substrate provided in an embodiment of the present application;

[0063] Fig.12 A cross-sectional schematic diagram of sequentially forming a pixel defining material layer and an isolation material layer on a side of a first electrode layer away from a substrate provided in an embodiment of the present application;

[0064] Fig.13 This is a cross-sectional view of the isolation material layer and the pixel definition material layer after patterning in sequence provided in the embodiment of the present application.

[0065] Figure numerals: 1. substrate; 2. pixel defining layer; 21. pixel opening; 22. second via hole; 3. first electrode; 4. light-emitting portion; 5. second electrode; 6. isolation layer; 601. first isolation portion; 602. second isolation portion; 603. third isolation portion; 61. isolation structure; 62. touch electrode; 7. isolation opening; 71. first edge; 72. second edge; 73. third edge; 74. fourth edge; 8. light-emitting unit; 9. conductive trace; 10. connecting trace; 11. insulating layer; 111. first via hole; 12. first encapsulation layer; 121. encapsulation unit; 13. second encapsulation layer; 14. third encapsulation layer; 15. pixel defining material layer; 16. isolation material layer. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0067] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0068] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0069] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0070] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0071] Improving the density of light-emitting units in a display panel (i.e., pixel density) is an important way to improve display effects. However, the display panels currently made using fine metal mask (FMM) technology cannot further increase the density of light-emitting units due to technical limitations. The inventors have found through long-term research that in order to solve the technical problem that the density of light-emitting units cannot be further increased, a first isolation structure is provided in some display panels. When the light-emitting functional layer and the second electrode are evaporated in the entire layer, the light-emitting functional layer and the second electrode can be disconnected at the first isolation structure. Through multiple evaporation and multiple etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed in different isolation openings.

[0072] The display panel in the related art includes a substrate, an isolation layer located on one side of the substrate, and the isolation layer includes an isolation structure and a touch electrode arranged on the same layer, so that the touch electrode is formed at the same time as the isolation structure is formed. However, since there are certain requirements for the overlapping distance between the isolation structure and the second electrode of the light-emitting unit of the display panel, the width of the touch electrode is greatly limited, thereby affecting the touch performance of the display panel.

[0073] In order to solve the above-mentioned technical problems, the inventor innovatively designed the following technical solutions, and the specific implementation solutions of the present application will be described in detail below in conjunction with the accompanying drawings. It should be noted that the defects existing in the solutions in the above-mentioned prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned technical problems and the solutions proposed in this embodiment below for the above-mentioned problems should all be the contributions made by the inventor to the present application in the process of invention and creation, and should not be understood as the technical content known to those skilled in the art.

[0074] See also Figure 1-Figure 2 This embodiment provides a display panel, which includes a substrate 1, a pixel defining layer 2 and an isolation layer 6.

[0075] The pixel defining layer 2 is located on one side of the substrate 1 , and a pixel opening 21 is provided on the pixel defining layer 2 .

[0076] The isolation layer 6 is located on the side of the pixel defining layer 2 away from the substrate 1. The isolation layer 6 includes an isolation structure 61 and a touch electrode 62 arranged in the same layer. The isolation structure 61 is insulated from adjacent touch electrodes 62. The isolation structure 61 encloses a plurality of isolation openings 7, and the isolation openings 7 are connected to the pixel openings 21.

[0077] Among them, the touch electrode 62 extends along the first direction X, and along the first direction X, the minimum distance between the edges of the positive projections of two adjacent pixel openings 21 on the substrate 1 on the side away from the substrate 1 is a first dimension D1; along the second direction Y, the minimum distance between the positive projection of the side of the isolation structure 61 close to the touch electrode 62 on the substrate 1 and the edge of the positive projection of the side of the pixel opening 21 on the substrate 1 away from the substrate 1 is a second dimension D2, the second dimension D2 is less than half of the first dimension D1, and the second direction Y intersects with the first direction X.

[0078] In the related art, the minimum distance between the edges of the positive projections of two adjacent pixel openings 21 arranged along the first direction X on the substrate 1 away from the substrate 1 is half of the minimum distance between the positive projections of the side of the isolation structure 61 arranged along the second direction Y close to the touch electrode 62 on the substrate 1 and the edge of the positive projections of the side of the pixel opening 21 away from the substrate 1 on the substrate 1, that is, the second size D2 in the related art is equal to half of the first size D1.

[0079] In this embodiment, under the condition that the minimum distance between the edges of the orthographic projections of the side of adjacent pixel openings 21 arranged along the second direction Y away from the substrate 1 on the substrate 1 remains unchanged, the second size D2 is set to be smaller than half of the first size D1, and the minimum distance between the orthographic projections of the side of the isolation structure 61 arranged along the second direction Y close to the touch electrode 62 on the substrate 1 and the edges of the orthographic projections of the side of the pixel opening 21 away from the substrate 1 on the substrate 1 is reduced, that is, the second size D2 is reduced, and more space can be reserved for setting the touch electrode 62, so that the touch electrode 62 can be set wider, thereby increasing the touch area of ​​the display panel, and finally improving the touch performance of the display panel.

[0080] Based on the above design, in this embodiment, by setting the second size to be smaller than half of the first size, the width of the touch electrode 62 can be increased, thereby increasing the touch area of ​​the display panel and further improving the touch performance of the display panel.

[0081] For some possible implementations, see again Figure 1 , along the second direction Y, the size W of the orthographic projection of the touch electrode 62 on the substrate 1 is greater than or equal to 10 μm and less than or equal to 12 μm. For example, the size W may be 10 μm, 10.5 μm, 11 μm, 11.5 μm or 12 μm, etc. The size W is reasonably set, that is, the width of the touch electrode 62 is reasonably set, and the width of the touch electrode 62 can be increased without affecting the arrangement of the light-emitting unit 8, so as to be more conducive to improving the touch performance of the display panel.

[0082] Preferably, the touch electrodes 62 are configured as self-capacitance detection electrodes. The touch electrodes 62 in this embodiment may be self-capacitance electrodes, and all touch electrodes 62 are arranged in the same layer, thereby greatly reducing the thickness of the display panel.

[0083] Preferably, the second direction Y is perpendicular to the first direction X. For example, the first direction X may be a row direction of the display panel, and the second direction Y may be a column direction of the display panel.

[0084] For some possible implementations, see Figure 1-Figure 3 The display panel also includes a light-emitting unit 8 located in the isolation opening 7. The light-emitting unit 8 includes a first electrode 3, a light-emitting portion 4, and a second electrode 5 which are sequentially stacked in a direction away from the substrate 1. Part of the second electrode 5 overlaps the isolation structure 61.

[0085] The setting of the isolation structure 61 enables the display panel to form film layers of light-emitting units 8 of different colors in different isolation openings 7 without the need for a fine mask plate. When forming a light-emitting material layer, the light-emitting material layer will be separated by the isolation structure 61 to form a plurality of light-emitting portions 4 arranged at intervals. When forming a second electrode material layer, the second electrode material layer will be separated by the isolation structure 61 to form a plurality of second electrodes 5 arranged at intervals. The isolation structure 61 includes a conductive material. The second electrode 5 is electrically connected to the isolation structure 61. A first electrode 3, a light-emitting portion 4 and a second electrode 5 form a light-emitting unit 8. Among them, the first electrode 3 can be an anode, and the second electrode 5 can be a cathode.

[0086] In this way, different light-emitting units 8 can be made independent of each other, thereby improving the crosstalk between adjacent light-emitting units 8 and improving the display effect of the display panel. At the same time, due to the existence of the isolation structure 61, the light-emitting material layer and the second electrode material layer in the light-emitting unit 8 of each color in the display panel can be first prepared on the entire surface and then patterned, thereby eliminating the need for a fine mask plate, thereby saving the manufacturing cost of the display panel.

[0087] Preferably, see again Figure 1-Figure 3 The orthographic projection of the side of the isolation structure 61 facing the substrate 1 on the substrate 1 includes a first edge 71 and a second edge 72 arranged opposite to each other, and a third edge 73 and a fourth edge 74 arranged opposite to each other. The orthographic projection of the second electrode 5 on the substrate 1 is located outside the first edge 71 and the second edge 72, and the third edge 73 and the fourth edge 74 are located inside the orthographic projection of the second electrode 5 on the substrate 1.

[0088] Due to the influence of the evaporation equipment, etc., for example, the evaporation angle of the second electrode 5 can be controlled along the direction of movement of the evaporation source. Therefore, the side surface corresponding to the isolation structure 61 along the direction of movement of the evaporation source is easy to overlap with the second electrode 5; it is not easy to control the evaporation angle of the second electrode 5 perpendicular to the direction of movement of the evaporation source. Therefore, the side surface corresponding to the isolation structure 61 along the direction perpendicular to the direction of movement of the evaporation source is not easy to overlap with the second electrode 5.

[0089] Since the second electrode 5 does not overlap the first edge 71 and the second edge 72 of the oppositely arranged isolation structure 61 facing the substrate 1, and the second electrode 5 only overlaps the third edge 73 and the fourth edge 74, the thickness of the second electrode 5 can be reduced, which is beneficial to improving the optical viewing angle of the display panel.

[0090] Since the second electrode 5 does not overlap the first edge 71 and the second edge 72 opposite to the touch electrode 62, the width of the isolation structure 61 corresponding to the first edge 71 and the second edge 72 can be appropriately reduced, that is, the first size can be appropriately reduced. Since the first size can be reduced, more space can be reserved for the touch electrode 62, so that the width of the touch electrode 62 can be increased.

[0091] In some possible embodiments, the first edge 71 and the second edge 72 extend along the first direction X, the third edge 73 and the fourth edge 74 extend along the second direction Y, and the dimension of the first edge 71 and the second edge 72 extending along the first direction X is smaller than the dimension of the third edge 73 and the fourth edge 74 extending along the second direction Y.

[0092] Optionally, the first edge 71 , the third edge 73 , the second edge 72 and the fourth edge 74 are connected in sequence.

[0093] The first edge 71 and the second edge 72 with a shorter extension dimension are opposite to the touch electrode 62, and the touch electrode 62 is not arranged between the third edge 73 and the fourth edge 74 with a longer extension dimension. In this way, it is more conducive to increasing the area of ​​the isolation opening 7, thereby improving the aperture ratio of the display panel, and further improving the display effect of the display panel.

[0094] For some possible implementations, see Figure 1 The second dimension D2 is greater than or equal to 3 μm and less than or equal to 5 μm. For example, the second dimension D2 may be 3 μm, 3.5 μm, 4 μm, 4.5 μm or 5 μm, etc. Reasonable setting of the second dimension D2, that is, reasonably reducing the second dimension D2, can increase the width of the touch electrode 62.

[0095] Preferably, the first dimension D1 is greater than or equal to 8 μm and less than or equal to 12 μm. For example, the first dimension D1 may be 8 μm, 9 μm, 10 μm, 11 μm or 12 μm, etc. Reasonable setting of the first dimension D1 can make the size of the isolation structure 61 between adjacent light-emitting units 8 more reasonable.

[0096] Preferably, the distance W1 between the orthographic projections of adjacent isolation structures 61 and touch electrodes 62 on the substrate 1 is greater than or equal to 3 μm and less than or equal to 4 μm. For example, the distance W1 may be 3 μm, 3.2 μm, 3.5 μm, 3.7 μm, 3.9 μm or 4 μm, etc. The distance W1 is reasonably set to reserve enough space between the isolation structure 61 and the touch electrode 62 so that the isolation structure 61 and the touch electrode 62 are not prone to short circuit, and the width of the touch electrode 62 may be set wider.

[0097] For some possible implementations, see Figure 4 There are multiple isolation structures 61, the isolation structures 61 extend along the first direction X, and the multiple isolation structures 61 are arranged along the second direction Y. The display panel also includes a connecting line 10 extending along the second direction Y, and the connecting line 10 is electrically connected to the multiple isolation structures 61 arranged along the second direction Y.

[0098] The isolation layer 6 is divided into a plurality of isolation structures 61 and a plurality of touch electrodes 62 arranged at intervals along the second direction Y. The isolation structures 61 and the touch electrodes 62 both extend along the first direction X. The plurality of isolation structures 61 are electrically connected through a connection line 10 extending along the second direction Y, and the connection line 10 is electrically connected to the power line. In this way, the power signal of the power line can be sequentially transmitted to the plurality of isolation structures 61 and the corresponding second electrodes 5 through the connection line 10 to light up the corresponding light-emitting units 8.

[0099] Preferably, see again Figure 4 There are multiple touch electrodes 62, and the multiple touch electrodes 62 are arranged along the second direction Y. The display panel also includes a conductive layer located between the isolation layer 6 and the substrate 1, and the conductive layer includes multiple conductive traces 9 extending along the second direction Y. The multiple conductive traces 9 are electrically connected to the touch electrodes 62.

[0100] The plurality of touch electrodes 62 are arranged along the second direction Y and extend along the first direction X, the plurality of conductive traces 9 are arranged along the first direction X and extend along the second direction Y, and the plurality of conductive traces 9 electrically connect the plurality of touch electrodes 62. In this way, the touch signals can be uniformly transmitted to the plurality of touch electrodes 62, and at the same time, the touch electrodes 62 and the conductive traces 9 can both be used as effective sensing electrodes of the display panel, thereby further increasing the touch area of ​​the display panel, and further improving the touch performance of the display panel.

[0101] In some possible implementations, the pattern formed by the orthographic projections of the plurality of touch electrodes 62 on the substrate 1 and the orthographic projections of the plurality of conductive traces 9 on the substrate 1 includes a plurality of grids.

[0102] Optionally, the display panel also includes a light-emitting unit 8 located in the isolation opening 7, the light-emitting unit 8 includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit with different light-emitting colors, and the positive projections of adjacent first light-emitting unit, second light-emitting unit and third light-emitting unit on the substrate 1 are located in a grid.

[0103] In this way, the grid formed by the touch electrodes 62 and the conductive traces 9 on the substrate 1 surrounds a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, which can increase the grid density formed by the touch electrodes 62 and the conductive traces 9 on the substrate 1, thereby further improving the touch performance of the display panel.

[0104] For some possible implementations, see again Figure 4 An isolation opening 7 is formed on the side of the isolation structure 61 away from the substrate 1, and along the first direction X, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings 7 on the substrate 1 is a third dimension D3; along the second direction Y, the minimum distance between the orthographic projection of the side of the isolation structure 61 close to the touch electrode 62 on the substrate 1 and the edge of the orthographic projection of the isolation opening 7 on the substrate 1 is a fourth dimension D4, and the fourth dimension D4 is less than half of the third dimension D3.

[0105] In the related art, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings 7 arranged along the first direction X on the substrate 1 is half of the minimum distance between the orthographic projection of one side of the isolation structure 61 arranged along the second direction Y close to the touch electrode 62 on the substrate 1 and the edge of the orthographic projection of the isolation opening 7 on the substrate 1, that is, the fourth dimension D4 in the related art is equal to half of the third dimension D3.

[0106] In this embodiment, when the distance between adjacent isolation openings 7 arranged along the second direction Y remains unchanged, the fourth dimension D4 is set to be smaller than half of the third dimension D3, that is, the fourth dimension D4 is reduced, so that more space can be reserved for setting the touch electrode 62, so that the touch electrode 62 can be set wider, thereby increasing the touch area of ​​the display panel, and finally improving the touch performance of the display panel.

[0107] For some possible implementations, see Figure 5 The conductive layer includes a plurality of sub-conductive layers stacked in sequence in a direction away from the substrate 1 , and the conductive trace 9 is located in a sub-conductive layer closest to the isolation structure 61 .

[0108] Specifically, the conductive layer includes a first sub-conductive layer, a second sub-conductive layer, a third sub-conductive layer and a fourth sub-conductive layer which are sequentially stacked in a direction away from the substrate 1 , and the conductive trace 9 is located in the fourth sub-conductive layer.

[0109] The display panel also includes a buffer layer and a semiconductor layer located between the substrate 1 and the first sub-conductive layer, wherein the semiconductor layer includes a source region, a drain region and a channel region, the first sub-conductive layer includes a gate and a first capacitor plate, the second sub-conductive layer includes a second capacitor plate, the first capacitor plate and the second capacitor plate form a capacitor, the third sub-conductive layer includes a drain and a source, the drain is electrically connected to the drain region, the source is electrically connected to the source region, the gate, the source and the drain form a driving transistor, and the conductive trace 9 in this embodiment is located in the fourth sub-conductive layer. In this way, the conductive trace 9 can be formed while forming the fourth sub-conductive layer.

[0110] For some possible implementations, see again Figure 5The display panel further includes an insulating layer 11 located between the fourth sub-conductive layer and the isolation layer. A first via hole 111 penetrating the insulating layer 11 is provided on the insulating layer 11 in a direction perpendicular to the substrate 1 .

[0111] Optionally, the display panel also includes a pixel defining layer 2 located between the insulating layer 11 and the isolation layer, and a pixel opening 21 and a second via 22 are provided on the pixel defining layer 2. The pixel opening 21 is connected to the isolation opening 7, and the second via 22 is connected to the first via 111. The touch electrode 62 is electrically connected to the conductive trace 9 through the second via 22 and the first via 111 in sequence.

[0112] The centers of the orthographic projections of the first via hole 111 and the second via hole 22 on the substrate 1 coincide with each other, and when the touch electrode 62 is formed, the material of the touch electrode 62 will sequentially extend into the second via hole 22 and the first via hole 111 and contact the side of the conductive trace 9 away from the substrate 1. In this way, the touch electrode 62 can be more easily electrically connected to the conductive trace 9.

[0113] For some possible implementations, see Figure 6 and Figure 7 The display panel also includes a light-emitting unit 8 located in the isolation opening 7 and a first encapsulation layer 12 located on a side of the light-emitting unit 8 away from the substrate 1. The first encapsulation layer 12 includes a plurality of encapsulation units 121 arranged at intervals. At least part of the encapsulation unit 121 extends from the isolation structure 61 toward the side of the isolation opening 7 to the side of the isolation structure 61 away from the substrate 1.

[0114] Preferably, adjacent packaging units 121 are spaced apart on a side of the isolation structure 61 away from the substrate 1 .

[0115] During the patterning process of the light-emitting unit 8 , the first packaging material layer is disconnected at the isolation structure 61 to form the packaging unit 121 . The packaging unit 121 can completely and independently package the corresponding light-emitting unit 8 , thereby improving the display characteristics of the display panel.

[0116] For some possible implementations, see Figure 8 and Fig. 9 The display panel further includes a second encapsulation layer 13 located on a side of the first encapsulation layer 12 away from the substrate 1 and a third encapsulation layer 14 located on a side of the second encapsulation layer 13 away from the substrate 1 .

[0117] Preferably, the materials of the first encapsulation layer 12 and the third encapsulation layer 14 both include inorganic materials, and the material of the second encapsulation layer 13 includes organic materials.

[0118] For example, the first encapsulation layer 12 and the third encapsulation layer 14 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 13 can be formed by inkjet printing (IJP). The second encapsulation layer 13 and the third encapsulation layer 14 can provide a better encapsulation effect on the light-emitting unit 8, thereby further improving the encapsulation quality of the display panel.

[0119] For some possible implementations, see again Figure 7 The isolation structure 61 and the touch electrode 62 both include a first isolation portion 601 and a second isolation portion 602 which are stacked in sequence in a direction away from the substrate 1 , and the orthographic projection of the first isolation portion 601 on the substrate 1 is located within the orthographic projection of the second isolation portion 602 on the substrate 1 .

[0120] Since the second isolation portion 602 is located on the side of the first isolation portion 601 away from the substrate 1, and the lateral width of the second isolation portion 602 is greater than the lateral width of the first isolation portion 601 in a plane parallel to the substrate 1, the second isolation portion 602 disconnects the light-emitting material layer and the second electrode material layer at the isolation structure 61. In this way, the isolation structure 61 formed by the first isolation portion 601 and the second isolation portion 602 can make it easier to independently package each light-emitting unit 8, thereby improving the packaging yield of the display panel.

[0121] Preferably, see again Figure 1 and Figure 7 The display panel also includes a light-emitting unit 8 located in the isolation opening 7. Along the first direction X, the second electrode 5 of the light-emitting unit overlaps the first isolation portion 601. Along the second direction Y, the orthographic projection of the second electrode 5 of the light-emitting unit on the substrate 1 is located outside the orthographic projection of the first isolation portion 601 on the substrate 1.

[0122] The first isolation portion 601 includes a conductive material, and the second electrode 5 corresponding to the light emitting unit 8 extends to contact the side wall of the first isolation portion 601 to achieve electrical connection between the second electrode 5 corresponding to the light emitting unit 8 and the first isolation portion 601 .

[0123] Please see again Figure 1 , Figure 8 and Fig. 9 The isolation structure 61 also includes a third isolation portion 603 located on the side of the first isolation portion 601 facing the substrate 1. Along the first direction X, the second electrode 5 overlaps the third isolation portion 603. Along the second direction Y, the orthographic projection of the second electrode 5 of the light-emitting unit on the substrate 1 is located outside the orthographic projection of the third isolation portion 603 on the substrate 1.

[0124] The third isolation portion 603 includes a conductive material, and the second electrode 5 corresponding to the light emitting unit 8 extends to contact the side wall of the third isolation portion 603 to achieve electrical connection between the second electrode 5 corresponding to the light emitting unit 8 and the third isolation portion 603 .

[0125] Specifically, the material of the third isolation part 603 includes molybdenum; and / or the material of the first isolation part 601 includes aluminum; and / or the material of the second isolation part 602 includes titanium. In this way, when the isolation structure 61 separates the second electrode material layer into the second electrode 5, the second electrode 5 is more easily electrically connected to the first isolation part 601 and / or the third isolation part 603.

[0126] The orthographic projection of the light emitting portion 4 on the substrate 1 is outside the orthographic projection of the third isolation portion 603 and / or the first isolation portion 601 on the substrate 1. In this way, the light emitting portion 4 does not overlap with the isolation structure 61, thereby effectively improving the crosstalk problem between the light emitting units 8.

[0127] In some possible implementations, the present application further provides another display panel, which includes a substrate 1 and an isolation layer 6 .

[0128] The isolation layer 6 is located on one side of the substrate 1 . The isolation layer 6 includes an isolation structure 61 and touch electrodes 62 arranged on the same layer. The isolation structure 61 is insulated from adjacent touch electrodes 62 . The side of the isolation structure 61 away from the substrate 1 encloses a plurality of isolation openings 7 .

[0129] Among them, the touch electrode 62 extends along the first direction X, and along the first direction X, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings 7 on the substrate 1 is a third dimension D3; along the second direction Y, the minimum distance between the orthographic projection of one side of the isolation structure 61 close to the touch electrode 62 on the substrate 1 and the edge of the orthographic projection of the isolation opening 7 on the substrate 1 is a fourth dimension D4, and the fourth dimension D4 is less than half of the third dimension D3.

[0130] In the related art, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings 7 arranged along the first direction X on the substrate 1 is half of the minimum distance between the orthographic projection of one side of the isolation structure 61 arranged along the second direction Y close to the touch electrode 62 on the substrate 1 and the edge of the orthographic projection of the isolation opening 7 on the substrate 1, that is, the fourth dimension D4 in the related art is equal to half of the third dimension D3.

[0131] In this embodiment, when the distance between adjacent isolation openings 7 arranged along the second direction Y remains unchanged, the fourth dimension D4 is set to be smaller than half of the third dimension D3, that is, the fourth dimension D4 is reduced, so that more space can be reserved for setting the touch electrode 62, so that the touch electrode 62 can be set wider, thereby increasing the touch area of ​​the display panel, and finally improving the touch performance of the display panel.

[0132] For some possible implementations, see Figure 1 , Figure 2 and Fig.10 The present application also provides a method for preparing a display panel, the display panel comprising:

[0133] S10: providing a substrate 1.

[0134] S11 : forming a pixel defining layer 2 on one side of the substrate 1 , and providing a pixel opening 21 on the pixel defining layer 2 .

[0135] S11: An isolation layer 6 is formed on a side of the pixel defining layer 2 away from the substrate 1, the isolation layer 6 includes an isolation structure 61 and a touch electrode 62 arranged in the same layer, the isolation structure 61 is insulated from adjacent touch electrodes 62, the isolation structure 61 encloses a plurality of isolation openings 7, and the isolation openings 7 are connected to the pixel openings 21; the touch electrodes 62 extend along a first direction X, and along the first direction X, the minimum distance between the edges of the positive projections of two adjacent pixel openings 21 on the substrate 1 away from the substrate 1 is a first dimension D1; along the second direction Y, the minimum distance between the edges of the positive projections of the side of the isolation structure 61 close to the touch electrode 62 on the substrate 1 and the edge of the positive projections of the side of the pixel opening 21 on the substrate 1 away from the substrate 1 is a second dimension D2, the second dimension D2 is less than half of the first dimension D1, and the second direction Y intersects with the first direction X.

[0136] See also Fig.11 A first electrode layer is formed on one side of the substrate 1, and the first electrode layer includes a plurality of first electrodes 3 arranged at intervals.

[0137] See also Fig.12 A pixel defining material layer 15 and an isolation material layer 16 are sequentially formed on a side of the first electrode layer away from the substrate 1 .

[0138] See also Fig.13 The isolation material layer 16 and the pixel defining material layer 15 are patterned in sequence to form an isolation structure 61 and a pixel defining layer 2 respectively. The pixel defining layer 2 is provided with a pixel opening 21 exposing a portion of the first electrode 3 , and the pixel opening 21 is connected to the isolation opening 7 .

[0139] The second size D2 of the display panel formed by the above method is smaller than half of the first size D1, that is, reducing the second size can reserve more space for setting the touch electrode 62, so that the touch electrode 62 can be set wider, thereby increasing the touch area of ​​the display panel, and finally improving the touch performance of the display panel.

[0140] In some possible implementations, the present application further provides an electronic device, the electronic device comprising the display panel of the present application, or comprising a display panel prepared by the method for preparing a display panel of the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, etc. Since the electronic device comprises the display panel of the present application, the display quality of the electronic device is better.

[0141] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0142] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A pixel defining layer, located on one side of the substrate, and having a pixel opening formed on the pixel defining layer; an isolation layer, located on a side of the pixel defining layer away from the substrate, the isolation layer comprising an isolation structure and a touch electrode arranged in the same layer, the isolation structure being insulated from adjacent touch electrodes, the isolation structure enclosing a plurality of isolation openings, and the isolation openings being connected to the pixel openings; In which, the touch electrode extends along a first direction, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent pixel openings on the substrate away from the side of the substrate is a first size; along the second direction, the minimum distance between the edges of the orthographic projections of the side of the isolation structure close to the touch electrode on the substrate and the orthographic projections of the side of the pixel opening away from the touch electrode on the substrate is a second size, the second size is smaller than half of the first size, and the second direction intersects with the first direction.

2. The display panel according to claim 1, characterized in that: Along the second direction, a size of an orthographic projection of the touch electrode on the substrate is greater than or equal to 10 μm and less than or equal to 12 μm; Preferably, the touch electrodes are configured as self-capacitance detection electrodes; Preferably, the second direction is perpendicular to the first direction.

3. The display panel according to claim 1, characterized in that: The display panel further includes a light emitting unit located in the isolation opening, the light emitting unit including a first electrode, a light emitting portion, and a second electrode sequentially stacked in a direction away from the substrate, and a portion of the second electrode overlaps the isolation structure; Preferably, the orthographic projection of the side of the isolation structure facing the substrate on the substrate includes a first edge and a second edge that are oppositely arranged, and a third edge and a fourth edge that are oppositely arranged, the orthographic projection of the second electrode on the substrate is located outside the first edge and the second edge, and the orthographic projection of the second electrode on the substrate is located within the orthographic projections of the third edge and the fourth edge; Preferably, there are multiple isolation structures, the isolation structures extend along the first direction, and the multiple isolation structures are arranged along the second direction. The display panel also includes connecting wires extending along the second direction, and the connecting wires are electrically connected to the multiple isolation structures arranged along the second direction.

4. The display panel according to claim 3, characterized in that: The first edge and the second edge extend along the first direction; Preferably, the third edge and the fourth edge extend along the second direction.

5. The display panel according to claim 4, characterized in that: The dimensions of the first edge and the second edge extending along the first direction are smaller than the dimensions of the third edge and the fourth edge extending along the second direction; Preferably, the first edge, the third edge, the second edge and the fourth edge are connected in sequence.

6. The display panel according to claim 1, characterized in that: The second size is greater than or equal to 3 μm and less than or equal to 5 μm; Preferably, the first size is greater than or equal to 8 μm and less than or equal to 12 μm; Preferably, a distance between orthographic projections of adjacent isolation structures and touch electrodes on the substrate is greater than or equal to 3 μm and less than or equal to 4 μm.

7. The display panel according to claim 1, characterized in that: The display panel further includes a conductive layer located between the isolation layer and the substrate, the conductive layer includes a plurality of conductive traces extending along the second direction, and the plurality of conductive traces are electrically connected to the touch electrodes.

8. The display panel according to claim 7, characterized in that: There are a plurality of touch electrodes, the plurality of touch electrodes are arranged along the second direction, and a pattern formed by orthographic projections of the plurality of touch electrodes on the substrate and orthographic projections of the plurality of conductive traces on the substrate includes a plurality of grids; Preferably, the display panel also includes a light-emitting unit located in the isolation opening, and the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit having different light-emitting colors, and the orthographic projections of adjacent first light-emitting unit, second light-emitting unit and third light-emitting unit on the substrate are located in a grid.

9. The display panel according to claim 7, characterized in that: The conductive layer comprises a plurality of sub-conductive layers stacked in sequence in a direction away from the substrate, and the conductive trace is located at a sub-conductive layer closest to the isolation structure; Preferably, the conductive layer comprises a first sub-conductive layer, a second sub-conductive layer, a third sub-conductive layer and a fourth sub-conductive layer which are sequentially stacked in a direction away from the substrate, and the conductive trace is located in the fourth sub-conductive layer; Preferably, the display panel further comprises an insulating layer located between the fourth sub-conductive layer and the isolation layer, and a first via hole penetrating the insulating layer is provided on the insulating layer in a direction perpendicular to the substrate; Preferably, the pixel defining layer is located between the insulating layer and the isolation layer, a second via hole is provided on the pixel defining layer, the second via hole is connected to the first via hole, and the touch electrode is electrically connected to the conductive trace through the second via hole and the first via hole in sequence.

10. The display panel according to any one of claims 1 to 9, characterized in that: The isolation opening is formed on a side of the isolation structure away from the substrate, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings on the substrate is a third dimension; Along the second direction, the minimum distance between the orthographic projection of one side of the isolation structure close to the touch electrode on the substrate and the edge of the orthographic projection of the isolation opening on the substrate is a fourth dimension, and the fourth dimension is smaller than half of the third dimension.

11. The display panel according to claim 1, characterized in that: The display panel further includes a light emitting unit located in the isolation opening and a first encapsulation layer located on a side of the light emitting unit away from the substrate, wherein the first encapsulation layer includes a plurality of encapsulation units arranged at intervals, and at least a portion of the encapsulation units extends from a side of the isolation structure toward the isolation opening to a side of the isolation structure away from the substrate; Preferably, adjacent packaging units are arranged at intervals on a side of the isolation structure away from the substrate; Preferably, the display panel further comprises a second encapsulation layer located on a side of the first encapsulation layer away from the substrate; Preferably, the display panel further comprises a third encapsulation layer located on a side of the second encapsulation layer away from the substrate; Preferably, the materials of the first encapsulation layer and the third encapsulation layer both include inorganic materials; Preferably, the material of the second encapsulation layer includes organic material.

12. The display panel according to any one of claims 1 to 9, characterized in that: The isolation structure and the touch electrode both include a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the substrate, wherein an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate; Preferably, the second isolation portion encloses and forms the isolation opening; Preferably, the display panel further comprises a light emitting unit located in the isolation opening, wherein along the first direction, a second electrode of the light emitting unit overlaps the first isolation portion, and along the second direction, an orthographic projection of the second electrode of the light emitting unit on the substrate is located outside an orthographic projection of the first isolation portion on the substrate; And / or, the isolation structure further includes a third isolation portion located on a side of the first isolation portion facing the substrate, the second electrode overlaps the third isolation portion along the first direction, and the orthographic projection of the second electrode of the light-emitting unit on the substrate is located outside the orthographic projection of the third isolation portion on the substrate along the second direction; Preferably, the material of the third isolation portion includes molybdenum; and / or the material of the first isolation portion includes aluminum; and / or the material of the second isolation portion includes titanium.

13. A display panel, characterized in that: The display panel comprises: substrate; An isolation layer, located on one side of the substrate, the isolation layer comprising an isolation structure and touch electrodes arranged in the same layer, the isolation structure being insulated from adjacent touch electrodes, and the isolation structure being away from the substrate and enclosing a side thereof to form a plurality of isolation openings; In which, the touch electrode extends along a first direction, and along the first direction, the minimum distance between the edges of the orthographic projections of two adjacent isolation openings on the substrate is a third dimension; along the second direction, the minimum distance between the orthographic projection of a side of the isolation structure close to the touch electrode on the substrate and the edge of the orthographic projection of the isolation opening on the substrate is a fourth dimension, and the fourth dimension is less than half of the third dimension.

14. A method for preparing a display panel, characterized in that: The display panel comprises: providing a substrate; A pixel defining layer is formed on one side of the substrate, wherein a pixel opening is provided on the pixel defining layer; An isolation layer is formed on a side of the pixel defining layer away from the substrate, the isolation layer includes an isolation structure and a touch electrode arranged in the same layer, the isolation structure is insulated from adjacent touch electrodes, the isolation structure encloses a plurality of isolation openings, and the isolation openings are connected to the pixel openings; the touch electrodes extend along a first direction, and along the first direction, a minimum distance between edges of the orthographic projections of two adjacent pixel openings away from the substrate on the substrate is a first dimension; along the second direction, a minimum distance between an orthographic projection of a side of the isolation structure close to the touch electrode on the substrate and an edge of the orthographic projection of a side of the pixel opening away from the substrate on the substrate is a second dimension, the second dimension is less than half of the first dimension, and the second direction intersects with the first direction.

15. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 13, or comprises a display panel prepared by the method for preparing a display panel according to claim 14.

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