Display panel

Abstract

Provided in the embodiments of the present application is a display panel. The display panel comprises: a substrate; an isolation structure, which is disposed on one side of the substrate and defines a plurality of isolation openings, wherein the isolation structure comprises a first sub-layer; and a touch layer, which is disposed on the side of the first sub-layer away from the substrate, wherein the touch layer comprises touch portions, the orthographic projections of the touch portions on the substrate are located within the orthographic projection of the first sub-layer on the substrate, the width of a touch portion, the orthographic projection of which on the substrate is located between two adjacent isolation openings, is a first width, the width of the first sub-layer between the two adjacent isolation openings is a second width, and the first width of at least some touch portions are less than or equal to the second width and greater than or equal to one-half of the second width. While ensuring that a first width of a touch portion is not excessively small and thus reducing the resistance of the touch portion, the present application prevents the first width from being excessively large and causing shielding of a light-emitting region of the display panel defined by a first sub-layer, and thus avoids the problem of color shift caused by shielding by the touch portion, thereby improving the use performance of the display panel.

Description

Display panel

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510115918.9, filed on January 22, 2025, entitled “Display Panel,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of display technology, and in particular relates to a display panel. Background Technology

[0004] In traditional display panel manufacturing, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also suffers from limitations in precision, high development costs, and long development cycles. Fine metal maskless technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN116648095A, CN117062489A, CN118742138A, CN118678783A, CN118660598A, CN118675450A, CN118824188A, and CN118781966A describe relevant aspects of fine metal maskless technology and are provided for reference. Summary of the Invention

[0005] This application provides a display panel designed to improve its performance.

[0006] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate and forming a plurality of isolation openings, the isolation structure including a first sub-layer; and a touch layer disposed on the side of the first sub-layer facing away from the substrate, the touch layer including a touch portion, the orthographic projection of the touch portion on the substrate being located within the orthographic projection of the first sub-layer on the substrate; wherein the width of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings is a first width, the width of the first sub-layer between two adjacent isolation openings is a second width, and at least a portion of the first width of the touch portion is less than or equal to the second width, and greater than or equal to half of the second width.

[0007] An embodiment of the second aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate and forming a plurality of isolation openings, the isolation structure including a first sub-layer; and a touch layer disposed on the side of the first sub-layer facing away from the substrate, the touch layer including a touch portion, the orthographic projection of the touch portion on the substrate being located within the orthographic projection of the first sub-layer on the substrate; wherein, the orthographic projection area of ​​the touch portion on the first sub-layer located between two adjacent isolation openings on the substrate is a first area, and the orthographic projection area of ​​the first sub-layer corresponding to the touch portion on the substrate is a second area, the first area being greater than or equal to half of the second area and less than or equal to the second area.

[0008] An embodiment of the third aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate and forming a plurality of isolation openings, the isolation structure including a first sub-layer; and a touch layer disposed on the side of the first sub-layer facing away from the substrate, the touch layer including a touch portion, the orthographic projection of the touch portion on the substrate being located within the orthographic projection of the first sub-layer on the substrate; wherein, along a direction perpendicular to the plane of the substrate, the thickness of the touch portion is greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms.

[0009] An embodiment of the fourth aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate and forming a plurality of isolation openings; and a touch layer disposed on the side of the isolation structure opposite to the substrate, the touch layer including a touch portion, the orthographic projection of the touch portion on the substrate being located within the orthographic projection of the isolation structure on the substrate, the touch portion including a straight edge portion and a connecting portion, the straight edge portion being connected through the connecting portion; wherein, along a direction parallel to the plane of the substrate, at least a portion of the width of the connecting portion is greater than the width of the straight edge portion.

[0010] In the display panel provided in this application embodiment, the display panel includes a substrate, an isolation structure, and a touch layer. The touch layer includes a touch portion, and the orthographic projection of the touch portion on the substrate is located within the orthographic projection of the first sub-layer on the substrate, that is, the touch portion is located above the first sub-layer. By limiting the first width of at least a portion of the touch portion to be less than or equal to the second width and greater than or equal to half of the second width, this invention ensures that the first width of the touch portion is not too small, reducing the resistance of the touch portion, while avoiding the first width being too large and obstructing the light-emitting area of ​​the display panel enclosed by the first sub-layer. This ensures the light-emitting effect of the display panel, avoids color shift caused by the obstruction of the touch portion, and improves the performance of the display panel. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0012] Figure 2 is a partial enlarged structural diagram of point A in Figure 1;

[0013] Figure 3 is a cross-sectional view at BB in Figure 2 in one example;

[0014] Figure 4 is a partial enlarged structural diagram of point C in Figure 2;

[0015] Figure 5 is a cross-sectional view at BB in Figure 2 in another example;

[0016] Figure 6 is a cross-sectional view of DD in Figure 2 in one example;

[0017] Figure 7 is a cross-sectional view of BB in Figure 2 in another example;

[0018] Figure 8 is a cross-sectional view of section BB in Figure 2 in another example;

[0019] Figure 9 is a schematic diagram of another display panel provided in an embodiment of this application;

[0020] Figure 10 is a partial enlarged structural diagram of point E in Figure 9;

[0021] Figure 11 is a partially enlarged structural diagram of point H in Figure 10;

[0022] Figure 12 is a cross-sectional view at point GG in Figure 10 of an example;

[0023] Figure 13 is a partial enlarged structural diagram of point F in Figure 9;

[0024] Figure 14 is a partial enlarged structural diagram of point H in Figure 10 in another example;

[0025] Figure 15 is a partial enlarged structural diagram of point M in Figure 14 of an example;

[0026] Figure 16 is a partial enlarged structural diagram of point E in Figure 9 in another example;

[0027] Figure 17 is a schematic diagram of the structure of the touch unit provided in an example. Detailed Implementation

[0028] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0029] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] To better understand this application, the display panel of the embodiment of this application will be described in detail below with reference to Figures 1 to 17.

[0032] Please refer to Figures 1 to 3 together. Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of this application; Figure 2 is a partially enlarged schematic diagram of the structure at point A in Figure 1; Figure 3 is a cross-sectional view at point BB in Figure 2 in an example.

[0033] This application provides a display panel 100, including: a substrate 1; an isolation structure 2 disposed on one side of the substrate 1 and forming a plurality of isolation openings K1, the isolation structure 2 including a first sub-layer 21; and a touch layer 4 disposed on the side of the first sub-layer 21 opposite to the substrate 1, the touch layer 4 including a touch portion 41, the orthographic projection of the touch portion 41 on the substrate 1 being located within the orthographic projection of the first sub-layer 21 on the substrate 1; wherein, the width of the touch portion 41 whose orthographic projection on the substrate 1 is located between two adjacent isolation openings K1 is a first width d1, the width of the first sub-layer 21 is a second width d2, and at least a portion of the first width d1 of the touch portion 41 is less than or equal to the second width d2, and greater than or equal to half of the second width d2. It is understood that the width direction is perpendicular to the extension direction of the touch portion 41 whose orthographic projection on the substrate 1 is located between two adjacent isolation openings K1.

[0034] The display panel 100 provided in this embodiment of the invention includes a substrate 1, an isolation structure 2, and a touch layer 4. The touch layer 4 includes a touch portion 41. The orthographic projection of the touch portion 41 on the substrate 1 is located within the orthographic projection of the first sub-layer 21 on the substrate 1, that is, the touch portion 41 is located above the first sub-layer 21. This embodiment of the invention limits the first width d1 of at least a portion of the touch portion 41 to be less than or equal to the second width d2, and greater than or equal to half of the second width d2. This ensures that the first width d1 of the touch portion 41 is not too small, reducing the resistance of the touch portion 41, while avoiding the first width d1 being too large, which would block the light-emitting area of ​​the display panel 100 enclosed by the first sub-layer 21. This ensures the light-emitting effect of the display panel 100, avoids color shift caused by the blocking of the touch portion 41, and improves the performance of the display panel 100.

[0035] In this embodiment, each touch unit 41 can form a grid-like touch electrode to realize the touch function of the display panel 100. Optionally, the touch unit 41 includes a metal material, such as copper, aluminum, molybdenum, titanium, etc.

[0036] It should be noted that the first width d1 and the second width d2 refer to the widths of the touch portion 41 and the first sub-layer 21 along the same direction, that is, the direction in which the touch portion 41 extends perpendicularly to the orthographic projection on the substrate 1 between two adjacent isolation openings K1.

[0037] It is understandable that the larger the first width d1 of the touch portion 41 is, the smaller the resistance of the corresponding touch portion 41 is; conversely, the smaller the first width d1 of the touch portion 41 is, the larger the resistance of the corresponding touch portion 41 is. Through research and experimentation, the inventors found that when the first width d1 of the touch portion 41 is less than or equal to the second width d2 and greater than or equal to half of the second width d2, the resistance of the touch portion 41 is small, which meets the requirements and will not block the light emitted by the display panel 100.

[0038] Optionally, substrate 1 can be a rigid substrate, such as a glass substrate; or it can be a flexible substrate, made of polyimide, polystyrene, polyethylene terephthalate, poly(p-xylene), polyethersulfone, or polyethylene naphthalate. Substrate 1 is mainly used to support the devices mounted on it.

[0039] Optionally, the display panel 100 also includes a light-emitting functional layer 3, which includes light-emitting structures 31 that are at least partially located in each of the isolation openings K1.

[0040] Optionally, the material of the isolation structure 2 includes a conductive material, and a first electrode layer 5 is disposed on the side of the light-emitting functional layer 3 facing away from the substrate 1, and the first electrode layer 5 is electrically connected to the isolation structure 2.

[0041] Optionally, the light-emitting functional layer 3 is provided with a second electrode layer 6 on the side facing the substrate 1.

[0042] The material of the first electrode layer 5 can be one of the following metals: silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In). It can also be an alloy of the aforementioned metals, such as magnesium-silver alloy (Mg / Ag) or lithium-aluminum alloy (Li / Al). This embodiment does not limit the material in this regard.

[0043] The material of the second electrode layer 6 is generally a material with a high work function to improve hole injection efficiency. It can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO), or a transparent conductive polymer (such as polyaniline). For example, the second electrode layer 6 can be made of ITO-Ag-ITO composite material, without any special limitations.

[0044] Optionally, the light-emitting structure 31 includes one or more of the following: an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer. The specific selection can be based on the specific type of the light-emitting layer and is not particularly limited. The electron injection layer, electron transport layer, and hole blocking layer can be disposed between the second electrode and the light-emitting material layer. The electron blocking layer, hole transport layer, and hole injection layer can be disposed between the first electrode and the light-emitting material layer.

[0045] Optionally, the display panel 100 further includes a pixel limiting layer 9, which is disposed between the substrate 1 and the isolation structure 2. The pixel limiting layer 9 encloses and forms a plurality of pixel openings K2, which are connected to the corresponding isolation openings K1. The light-emitting structure 31 is at least partially located within each pixel opening K2.

[0046] In this embodiment, a light-emitting structure 31 can be provided inside the pixel opening K2 to realize the light-emitting display of the display panel 100.

[0047] Optionally, multiple pixel openings K2 are spaced apart, and each pixel opening K2 is provided with a light-emitting structure 31.

[0048] Please refer to Figure 4. In some optional embodiments, the first width d1 is less than or equal to three-quarters of the second width d2, and greater than or equal to one-half of the second width d2.

[0049] Considering that the larger the first width d1 is, the more likely it is to block the light emitted by the light-emitting structure 31, causing the light emitted by the light-emitting structure 31 to be refracted at the touch part 41 and resulting in color shift, through the inventor's research and experiments, this embodiment further limits the range of the first width d1, so that the first width d1 is less than or equal to three-quarters of the second width d2, in order to reduce the blocking area of ​​the touch part 41.

[0050] Optionally, the first width d1 can be equal to three-quarters of the second width d2, or equal to one-half of the second width d2.

[0051] Optionally, the first width d1 is greater than or equal to 3 μm and less than or equal to 10 μm. For example, the first width d1 can be any one of 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, and 10 μm. Optionally, the first width d1 is greater than or equal to 3 μm and less than or equal to 6 μm.

[0052] Optionally, the second width d2 is greater than or equal to 4 μm and less than or equal to 20 μm. For example, the first width d1 can be any of 4 μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, or 20 μm.

[0053] Referring to Figure 4, in some optional embodiments, the orthographic projection of the touch portion 41 on the substrate 1 between two adjacent isolation openings K1 includes a first dividing line Z1, and the orthographic projection of the first sublayer 21 corresponding to the touch portion 41 on the substrate 1 includes a second dividing line Z2. The extending directions of the first dividing line Z1 and the second dividing line Z2 are the same as the extending directions of the touch portion 41 on the substrate 1 between two adjacent isolation openings K1, and the spacing between the first dividing line Z1 and the second dividing line Z2 is less than or equal to 2 μm.

[0054] It is understandable that since the light-emitting structure 31 is at least partially located within the isolation opening K1, the larger the distance between the first center line Z1 of the touch portion 41 and the second center line Z2 of the first sub-layer 21, the closer the touch portion 41 is to the isolation opening K1, and the more likely it is to affect the light emission of the light-emitting structure 31. In this embodiment, by limiting the distance between the first center line Z1 and the second center line Z2 to less than or equal to 2μm along the direction perpendicular to the extension of the touch portion 41, the touch portion 41 is positioned corresponding to the middle part of the first sub-layer 21, thereby avoiding affecting the light emission of the light-emitting structure 31 and improving the display effect.

[0055] Optionally, the spacing between the first bisector Z1 and the second bisector Z2 can be any one of 0, 1 μm, or 2 μm.

[0056] When the distance between the first dividing line Z1 and the second dividing line Z2 can be equal to 0, the first dividing line Z1 and the second dividing line Z2 coincide, so that the touch part 41 is set at the center of the first sub-layer 21, and the touch part 41 is minimized from affecting the light emission of the light-emitting structure 31.

[0057] To further reduce the resistance of the touch portion 41, the film thickness of the touch portion 41 can be increased. In some optional embodiments, the thickness of the touch portion 41 is greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms along the direction perpendicular to the plane of the substrate 1. Optionally, the thickness of the touch portion 41 is equal to any one of 4000 angstroms, 5000 angstroms, and 6000 angstroms.

[0058] Optionally, the thickness of the touch portion 41 is greater than or equal to 4500 angstroms and less than or equal to 6000 angstroms along a direction perpendicular to the plane of the substrate 1. For example, the thickness of the touch portion 41 is equal to any one of 4500 angstroms, 5000 angstroms, and 6000 angstroms.

[0059] Referring to Figure 4, in some optional embodiments, the distance d3 between the edge of the orthographic projection of the touch portion 41 on the substrate 1 between two adjacent isolation openings K1 and the edge of the orthographic projection of the corresponding first sublayer 21 on the substrate 1 is greater than or equal to 3 μm and less than or equal to 10 μm.

[0060] It is understandable that the closer the touch portion 41 is to the edge of the first sub-layer 21, the closer the touch portion 41 is to the isolation opening K1, and the greater the impact on the light emission of the light-emitting structure 31. Therefore, in this embodiment, the distance d3 between the edge of the orthogonal projection of the touch portion 41 on the substrate 1 and the edge of the orthogonal projection of the corresponding first sub-layer 21 on the substrate 1 is limited to be greater than or equal to 3μm and less than or equal to 10μm, so as to avoid the touch portion 41 being too close to the edge of the first sub-layer 21. In addition, the distance between the touch portion 41 and the edge of the first sub-layer 21 should not be too large. If it is too large, it may cause the first width d1 of the touch portion 41 to be too small, which in turn leads to excessive resistance.

[0061] Optionally, along the direction perpendicular to the extension of the touch portion 41, the distance d3 between the edge of the orthographic projection of the touch portion 41 on the substrate 1 and the edge of the orthographic projection of the corresponding first sublayer 21 on the substrate 1 is equal to 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, or 10μm.

[0062] Referring to Figure 5, in some optional embodiments, the display panel 100 further includes a conductive portion 43 disposed on a different layer from the touch portion 41, and an insulating layer 42 disposed between the touch portion 41 and the conductive portion 43. The conductive portion 43 and the touch portion 41 are connected through a through hole G disposed on the insulating layer 42.

[0063] It should be noted that in this embodiment, the conductive part 43 and the touch part 41 are connected in parallel to reduce the resistance of the touch part 41. Optionally, the touch part 41 and the conductive part 43 are made of the same material to reduce production costs. The insulating layer 42 can be made of inorganic materials such as silicon nitride, silicon oxide, and silicon oxynitride to ensure insulation performance. It is understood that in some optional embodiments, the conductive part 43 can be located on the side of the touch part 41 away from the substrate 1, which is not limited here.

[0064] Referring to Figure 2, in some optional embodiments, the touch unit 41 includes a first sub-part 412 and a second sub-part 411 connected to each other. The first sub-part 412 extends along a first direction X, and the second sub-part 411 extends along a second direction Y. Both the first direction X and the second direction Y are parallel to the direction of the plane on which the substrate 1 is located, and the first direction X and the second direction Y intersect.

[0065] In this embodiment, the first sub-part 412 and the second sub-part 411 can extend along the first direction X and the second direction Y respectively, and be staggered to form a grid-like touch electrode to ensure the light transmittance of the display panel 100. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0066] Optionally, when the first sub-part 412 extends along the first direction X, the direction perpendicular to the extension of the touch portion 41 can refer to the second direction Y. Similarly, when the second sub-part 411 extends along the second direction Y, the direction perpendicular to the extension of the touch portion 41 can refer to the first direction X.

[0067] Optionally, the widths of the first sub-part 412 and the second sub-part 411 are the same along the extending direction of the first sub-part 412 and the second sub-part 411, so as to improve the uniformity of the setting of the touch part 41, and ensure the uniformity of the resistance of the first sub-part and the second sub-part while facilitating the manufacturing process.

[0068] Referring to Figures 2 and 6, in some optional embodiments, the display panel 100 further includes a light-emitting functional layer 3, which includes light-emitting structures 31 at least partially located in each isolation opening K1; the light-emitting functional layer 3 includes a first light-emitting group F1 and a second light-emitting group F2, and the first light-emitting group F1 and the second light-emitting group F2 each include two adjacent light-emitting structures 31; along a direction parallel to the plane of the substrate 1, there is a first interval J1 between the orthographic projections of two adjacent light-emitting structures 31 in the first light-emitting group F1 onto the substrate 1, and there is a second interval J2 between the orthographic projections of two adjacent light-emitting structures 31 in the second light-emitting group F2 onto the substrate 1, and the first interval J1 is greater than the second interval J2.

[0069] It is understandable that, depending on the arrangement of the light-emitting structures 31, the spacing between two adjacent light-emitting structures 31 may also be different. Correspondingly, the size of the isolation structure 2 located in the spacing is also different. In this embodiment, the width of the first sub-layer 21 located in the first spacing J1 is greater than the width of the first sub-layer 21 located in the second spacing J2, and the width of the touch part 41 of the first sub-layer 21 with the larger width is also relatively larger.

[0070] Optionally, the width of the touch portion 41 located in the first interval J1 is greater than the width of the touch portion 41 located in the second interval J2, so that the width of the touch portion 41 and the width of the first sub-layer 21 are set to correspond, so as to ensure the light emission effect of the display panel 100 while satisfying the resistance of the touch portion 41.

[0071] Optionally, the light-emitting functional layer 3 includes at least two light-emitting structures 31 with different light-emitting colors.

[0072] Referring to Figure 7, in some optional embodiments, along the direction away from the substrate 1, the isolation structure 2 includes a second sublayer 22 and a first sublayer 21 stacked together, wherein the orthographic projection of the second sublayer 22 onto the substrate 1 is located within the orthographic projection of the first sublayer 21 onto the substrate 1.

[0073] The orthographic projection of the second sublayer 22 onto the substrate 1 lies within the orthographic projection of the first sublayer 21 onto the substrate 1. This means that the size of the second sublayer 22 is less than or equal to the size of the first sublayer 21. Optionally, the first sublayer 21 may be made of titanium, and the second sublayer 22 may be made of aluminum.

[0074] Referring to Figure 7, optionally, the isolation structure 2 further includes a third sublayer 23 located on the side of the second sublayer 22 away from the first sublayer 21. The orthographic projection of the second sublayer 22 onto the substrate 1 lies within the orthographic projection of the third sublayer 23 onto the substrate 1. The size of the second sublayer 22 is less than or equal to the size of the third sublayer 23.

[0075] In some optional embodiments, the display panel 100 further includes a light-emitting functional layer 3 and a first encapsulation layer 71. The light-emitting functional layer 3 includes light-emitting structures 31 at least partially located in each isolation opening K1, and the first encapsulation layer 71 is at least partially disposed on the side of the light-emitting functional layer 3 facing away from the substrate 1. The first encapsulation layer 71 is used to provide sealing protection to the light-emitting structures 31.

[0076] Optionally, the first encapsulation layer 71 includes a first sub-part disposed on the side of the light-emitting functional layer 3 away from the substrate 1 and a second sub-part connected to the periphery of the first sub-part. The second sub-part is located on the side of the isolation structure 2 away from the substrate 1. The first sub-part is used to encapsulate and protect the light-emitting structure 31, and the second sub-part is used to encapsulate and protect the isolation structure 2.

[0077] Optionally, the first encapsulation layer 71 may include an inorganic material.

[0078] Optionally, the display panel 100 further includes a second encapsulation layer 72, which is disposed on the side of the first encapsulation layer 71 away from the substrate 1. The material of the second encapsulation layer 72 includes organic materials, and the second encapsulation layer 72 can have a suitable thickness to make the surface of the second encapsulation layer 72 away from the substrate 1 flatter, thereby improving the flatness of the display panel 100.

[0079] Optionally, the display panel 100 may also include a third encapsulation layer 73 disposed on the side of the second encapsulation layer 72 opposite to the substrate 1;

[0080] Optionally, the material of the third encapsulation layer 73 includes inorganic materials, which gives the third encapsulation layer 73 good density and can improve the encapsulation effect of the display panel 100.

[0081] Optionally, the first encapsulation layer 71 and the third encapsulation layer 73 are made of the same material to reduce production costs.

[0082] In some alternative embodiments, the thickness of the second encapsulation layer 72 is greater than or equal to 10 μm and less than or equal to 17 μm along a direction perpendicular to the plane of the substrate 1.

[0083] It should be noted that in this embodiment, the capacitance between the touch unit 41 and the isolation structure 2 can be reduced by increasing the thickness of the second encapsulation layer 72, thereby improving touch performance. For example, the thickness of the second encapsulation layer 72 can be any one of 10μm, 11μm, 12μm, 13μm, 14μm, 15μm, 16μm, or 17μm along the direction perpendicular to the plane of the substrate 1.

[0084] Referring to Figure 8, in some optional embodiments, the display panel 100 further includes an organic layer 8 disposed between the touch layer 4 and the second encapsulation layer 72. The thickness of the organic layer 8 is greater than or equal to 1.5 μm and less than or equal to 5 μm in a direction perpendicular to the plane of the substrate 1.

[0085] It should be noted that in this embodiment, by additionally providing an organic layer 8 in the touch layer 4 and the second encapsulation layer 72, the distance between the touch portion 41 and the light-emitting structure 31 in the direction perpendicular to the plane of the substrate 1 is increased, thereby reducing the capacitance between the touch portion 41 and the isolation structure 2 and improving touch performance. For example, the thickness of the organic layer 8 in the direction perpendicular to the plane of the substrate 1 can be any one of 1.5μm, 2μm, 2.5μm, 3μm, 3.5μm, 4μm, 4.5μm, and 5μm.

[0086] Optionally, the material of organic layer 8 may include optical adhesive.

[0087] Please refer to Figures 1 to 4. Another aspect of this embodiment of the invention provides a display panel 100, including: a substrate 1; an isolation structure 2 disposed on one side of the substrate 1 and forming a plurality of isolation openings K1, the isolation structure 2 including a first sub-layer 21; and a touch layer 4 disposed on the side of the first sub-layer 21 away from the substrate 1, the touch layer 4 including a touch portion 41, the orthographic projection of the touch portion 41 on the substrate 1 being located within the orthographic projection of the first sub-layer 21 on the substrate 1; wherein, the orthographic projection area of ​​the touch portion 41 on the substrate 1 located between two adjacent isolation openings K1 is a first area, and the orthographic projection area of ​​the first sub-layer 21 corresponding to the touch portion 41 on the substrate 1 is a second area, the first area being greater than or equal to half of the second area and less than or equal to the second area.

[0088] The display panel 100 provided in this embodiment of the invention includes a substrate 1, an isolation structure 2, and a touch layer 4. The touch layer 4 includes a touch portion 41. The orthographic projection of the touch portion 41 on the substrate 1 is located within the orthographic projection of the first sub-layer 21 on the substrate 1, that is, the touch portion 41 is located above the first sub-layer 21. This embodiment of the invention limits the first area corresponding to the touch portion 41 to be greater than or equal to half of the second area corresponding to the first sub-layer 21, and less than or equal to the second area. This reduces the resistance of the touch portion 41 while avoiding the obstruction of the light-emitting area of ​​the display panel 100 enclosed by the first sub-layer 21 due to the first area being too large. This ensures the light-emitting effect of the display panel 100, avoids the color shift problem caused by the obstruction of the touch portion 41, and improves the performance of the display panel 100.

[0089] Optionally, the first area can be equal to half of the second area, or the first area can be equal to the second area, that is, the touch part 41 and the corresponding first sub-layer 21 have the same size.

[0090] Please refer to Figures 1 to 4. In another aspect, an embodiment of the present invention provides a display panel 100, including: a substrate 1; an isolation structure 2 disposed on one side of the substrate 1 and forming a plurality of isolation openings K1, the isolation structure 2 including a first sub-layer 21; and a touch layer 4 disposed on the side of the first sub-layer 21 away from the substrate 1, the touch layer 4 including a touch portion 41, the orthographic projection of the touch portion 41 on the substrate 1 being located within the orthographic projection of the first sub-layer 21 on the substrate 1; wherein, along the direction perpendicular to the plane where the substrate 1 is located, the thickness of the touch portion 41 is greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms.

[0091] The display panel 100 provided in this embodiment of the invention includes a substrate 1, an isolation structure 2, and a touch layer 4. The touch layer 4 includes a touch portion 41. The orthographic projection of the touch portion 41 on the substrate 1 is located within the orthographic projection of the first sub-layer 21 on the substrate 1, that is, the touch portion 41 is located above the first sub-layer 21. In this embodiment of the invention, by limiting the thickness of the touch portion 41 along the direction perpendicular to the plane where the substrate 1 is located to be greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms, the resistance of the touch portion 41 is further reduced and the touch effect is improved.

[0092] Optionally, the display panel 100 also includes a light-emitting functional layer 3, which includes light-emitting structures 31 located within each isolation opening K1.

[0093] Optionally, the thickness of the touch unit 41 is equal to any one of 4000 angstroms, 5000 angstroms, or 6000 angstroms.

[0094] Optionally, the thickness of the touch portion 41 is greater than or equal to 4500 angstroms and less than or equal to 6000 angstroms along a direction perpendicular to the plane of the substrate 1. For example, the thickness of the touch portion 41 is equal to any one of 4500 angstroms, 5000 angstroms, and 6000 angstroms.

[0095] In some optional embodiments, the width of the touch portion 41 projected onto the substrate 1 between two adjacent isolation openings K1 is a first width d1, and the width of the first sub-layer 21 between two adjacent isolation openings K1 is a second width d2. At least part of the first width d1 of the touch portion 41 is less than or equal to the second width d2, and greater than or equal to half of the second width d2. This ensures that the first width d1 of the touch portion 41 is not too small, reducing the resistance of the touch portion 41, while avoiding the first width d1 being too large, which would block the light-emitting area of ​​the display panel 100 enclosed by the first sub-layer 21. This ensures the light-emitting effect of the display panel 100, avoids color shift caused by the blocking of the touch portion 41, and improves the performance of the display panel 100.

[0096] In some alternative embodiments, the first width d1 is less than or equal to three-quarters of the second width d2, and greater than or equal to one-half of the second width d2.

[0097] Considering that the larger the first width d1 is, the more likely it is to block the light emitted by the light-emitting structure 31, causing the light emitted by the light-emitting structure 31 to be refracted at the touch part 41 and resulting in color shift, through the inventor's research and experiments, this embodiment further limits the range of the first width d1, so that the first width d1 is less than or equal to three-quarters of the second width d2, in order to reduce the blocking area of ​​the touch part 41.

[0098] Optionally, the first width d1 can be equal to three-quarters of the second width d2, or equal to one-half of the second width d2.

[0099] Optionally, the first width d1 is greater than or equal to 3 μm and less than or equal to 10 μm. For example, the first width d1 can be any one of 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, and 10 μm. Optionally, the first width d1 is greater than or equal to 3 μm and less than or equal to 6 μm.

[0100] Optionally, the second width d2 is greater than or equal to 4 μm and less than or equal to 20 μm. For example, the first width d1 can be any of 4 μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, or 20 μm.

[0101] In some optional embodiments, the orthographic projection of the touch portion 41 between two adjacent isolation openings K1 on the substrate 1 includes a first dividing line Z1, and the orthographic projection of the first sublayer 21 corresponding to the touch portion 41 on the substrate 1 includes a second dividing line Z2. The extending directions of the first dividing line Z1 and the second dividing line Z2 are the same as the extending directions of the touch portion 41 whose orthographic projection on the substrate 1 is located between two adjacent isolation openings K1. The distance between the first dividing line Z1 and the second dividing line Z2 is less than or equal to 2 μm.

[0102] It is understandable that since the light-emitting structure 31 is at least partially located within the isolation opening K1, the larger the distance between the first center line Z1 of the touch portion 41 and the second center line Z2 of the first sub-layer 21, the closer the touch portion 41 is to the isolation opening K1, and the more likely it is to affect the light emission of the light-emitting structure 31. In this embodiment, by limiting the distance between the first center line Z1 and the second center line Z2 to less than or equal to 2μm along the direction perpendicular to the extension of the touch portion 41, the touch portion 41 is positioned corresponding to the middle part of the first sub-layer 21, thereby avoiding affecting the light emission of the light-emitting structure 31 and improving the display effect.

[0103] Optionally, the spacing between the first bisector Z1 and the second bisector Z2 can be any one of 0, 1 μm, or 2 μm.

[0104] When the distance between the first dividing line Z1 and the second dividing line Z2 can be equal to 0, the first dividing line Z1 and the second dividing line Z2 coincide, so that the touch part 41 is set at the center of the first sub-layer 21, and the touch part 41 is minimized from affecting the light emission of the light-emitting structure 31.

[0105] Please refer to Figure 3 or Figure 7. In some optional embodiments, along the direction away from the substrate 1, the isolation structure 2 includes a second sublayer 22 and a first sublayer 21 stacked together, wherein the orthographic projection of the second sublayer 22 onto the substrate 1 is located within the orthographic projection of the first sublayer 21 onto the substrate 1.

[0106] The orthographic projection of the second sublayer 22 onto the substrate 1 lies within the orthographic projection of the first sublayer 21 onto the substrate 1. This means that the size of the second sublayer 22 is less than or equal to the size of the first sublayer 21. Optionally, the first sublayer 21 may be made of titanium, and the second sublayer 22 may be made of aluminum.

[0107] Referring to Figure 7, optionally, the isolation structure 2 further includes a third sublayer 23 located on the side of the second sublayer 22 away from the first sublayer 21. The orthographic projection of the second sublayer 22 onto the substrate 1 lies within the orthographic projection of the third sublayer 23 onto the substrate 1. The size of the second sublayer 22 is less than or equal to the size of the third sublayer 23.

[0108] Optionally, the first encapsulation layer 71 includes a first sub-part disposed on the side of the light-emitting functional layer 3 away from the substrate 1 and a second sub-part connected to the periphery of the first sub-part. The second sub-part is located on the side of the isolation structure 2 away from the substrate 1. The first sub-part is used to encapsulate and protect the light-emitting structure 31, and the second sub-part is used to encapsulate and protect the isolation structure 2.

[0109] Optionally, the first encapsulation layer 71 may include an inorganic material.

[0110] Optionally, the display panel 100 further includes a second encapsulation layer 72, which is disposed on the side of the first encapsulation layer 71 away from the substrate 1. The material of the second encapsulation layer 72 includes organic materials, and the second encapsulation layer 72 can have a suitable thickness to make the surface of the second encapsulation layer 72 away from the substrate 1 flatter, thereby improving the flatness of the display panel 100.

[0111] Optionally, the display panel 100 may also include a third encapsulation layer 73 disposed on the side of the second encapsulation layer 72 opposite to the substrate 1;

[0112] Optionally, the material of the third encapsulation layer 73 includes inorganic materials, which gives the third encapsulation layer 73 good density and can improve the encapsulation effect of the display panel 100.

[0113] Optionally, the first encapsulation layer 71 and the third encapsulation layer 73 are made of the same material to reduce production costs.

[0114] Referring to Figure 2, in some optional embodiments, the display panel 100 further includes a light-emitting functional layer 3, which includes light-emitting structures 31 at least partially located in each isolation opening K1; the light-emitting functional layer 3 includes a first light-emitting group F1 and a second light-emitting group F2, and the first light-emitting group F1 and the second light-emitting group F2 each include two adjacent light-emitting structures 31; along a direction parallel to the plane of the substrate 1, there is a first interval J1 between the orthographic projections of two adjacent light-emitting structures 31 in the first light-emitting group F1 onto the substrate 1, and there is a second interval J2 between the orthographic projections of two adjacent light-emitting structures 31 in the second light-emitting group F2 onto the substrate 1, and the first interval J1 is greater than the second interval J2.

[0115] It is understandable that, depending on the arrangement of the light-emitting structures 31, the spacing between two adjacent light-emitting structures 31 may also be different. Correspondingly, the size of the isolation structure 2 located in the spacing is also different. In this embodiment, the width of the first sub-layer 21 located in the first spacing J1 is greater than the width of the first sub-layer 21 located in the second spacing J2, and the width of the touch part 41 of the first sub-layer 21 with the larger width is also relatively larger.

[0116] Optionally, the width of the touch portion 41 located in the first interval J1 is greater than the width of the touch portion 41 located in the second interval J2, so that the width of the touch portion 41 and the width of the first sub-layer 21 are set to correspond, so as to ensure the light emission effect of the display panel 100 while satisfying the resistance of the touch portion 41.

[0117] Optionally, the light-emitting functional layer 3 includes at least two light-emitting structures 31 with different light-emitting colors.

[0118] Please refer to Figures 9 to 11. Another aspect of the present invention provides a display panel, including: a substrate 1; an isolation structure 2 disposed on one side of the substrate 1 and forming a plurality of isolation openings K1; a touch layer 4 disposed on the side of the isolation structure 2 away from the substrate 1, the touch layer 4 including touch portions 41, the orthographic projection of the touch portions 41 on the substrate 1 being located within the orthographic projection of the isolation structure 2 on the substrate 1, the portion where at least two touch portions 41 are connected is a connecting portion L, the touch portion 41 including a straight edge portion N1 connected to the connecting portion L; wherein, along a direction parallel to the plane where the substrate 1 is located, at least a portion of the width a1 of the connecting portion is greater than the width a2 of the straight edge portion.

[0119] The display panel provided in this embodiment of the invention includes a substrate 1, an isolation structure 2, and a touch layer 4. At least two touch units 41 are connected to each other, forming a connecting portion L. The connecting portion L corresponds to the cross-connection portion of each touch unit 41. A straight edge portion N1 is connected to the connecting portion L; that is, the straight edge portion N1 refers to the portion of the touch unit 41 other than the connecting portion L. The straight edge portion N1 in one touch unit 41 is not directly connected to another touch unit 41. The straight edge portion N1 extends independently. The larger the width a2 of the connecting portion L or the straight edge portion, the smaller the corresponding resistance; conversely, the smaller the width a2 of the connecting portion L or the straight edge portion, the larger the corresponding resistance. This embodiment of the invention limits the width a1 of at least some connecting portions to be greater than the width a2 of the straight edge portion along a direction parallel to the plane of the substrate 1, thereby reducing the resistance of the connecting portion L and improving the transmission effect of the touch signal. Furthermore, a larger width a1 of the connecting portion also improves the structural strength of the connecting portion L, ensuring the reliability of the connection at the connecting portion L, and thus improving the performance of the display panel.

[0120] It should be noted that the orthographic projection of the touch unit 41 on the substrate 1 is located within the orthographic projection of the isolation structure 2 on the substrate 1, that is, the touch unit 41 is located on the isolation structure 2. In this embodiment, each touch unit 41 can form a grid-shaped touch electrode to realize the touch function of the display panel. Optionally, the touch unit 41 includes a metal material, such as copper, aluminum, molybdenum, titanium, etc.

[0121] Along the direction parallel to the plane of substrate 1, the width a1 of the connecting portion can specifically refer to the distance between the two opposite ends of the connecting portion L along the extending direction of the corresponding straight edge N1. The width a2 of the straight edge is the width along the direction perpendicular to its own extending direction.

[0122] Referring to Figure 12, in some optional embodiments, along the direction away from the substrate 1, the isolation structure 2 includes a second sublayer 22 and a first sublayer 21 stacked together. The orthographic projection of the second sublayer 22 onto the substrate 1 is located within the orthographic projection of the first sublayer 21 onto the substrate 1; the orthographic projection of the connecting portion L onto the substrate 1 is located within the orthographic projection of the second sublayer 22 onto the substrate 1.

[0123] The orthographic projection of the second sublayer 22 onto the substrate 1 lies within the orthographic projection of the first sublayer 21 onto the substrate 1, meaning that the size of the second sublayer 22 is less than or equal to the size of the first sublayer 21. Optionally, the first sublayer 21 comprises titanium metal, and the second sublayer 22 comprises aluminum metal.

[0124] Optionally, substrate 1 further includes a substrate and a pixel driving circuit. For example, substrate 1 includes a substrate and a driving circuit layer and a planarization layer disposed on the substrate. The pixel driving circuit includes a transistor and a capacitor. The capacitor includes a first electrode and a second electrode. The transistor includes a source, a drain, a gate, and a semiconductor layer. The driving circuit layer also includes multiple signal lines, such as data signal lines, scan signal lines, driving power supply voltage signal lines, etc. The driving circuit layer includes multiple conductive layers, including a first conductive layer, a second conductive layer, and a third conductive layer. The gate and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source and drain may be located on the third conductive layer.

[0125] The substrate can be a rigid substrate, such as a glass substrate, or a flexible substrate, made of materials such as polyimide, polystyrene, polyethylene terephthalate, poly(p-xylene), polyethersulfone, or polyethylene naphthalate. The substrate is mainly used to support the devices mounted on it.

[0126] In this embodiment, the orthographic projection of the connection portion L on the substrate 1 is located within the orthographic projection of the second sub-layer 22 on the substrate 1. That is, the width a1 of the connection portion is less than or equal to the width of the corresponding second sub-layer 22, so that the second sub-layer 22 can correspondingly isolate the mutual influence between the connection portion L and the conductive layer of the driving circuit layer, thereby improving the accuracy of touch control.

[0127] Referring to Figure 12, in some optional embodiments, the orthographic projection of the touch portion 41 on the substrate 1 is located within the orthographic projection of the first sublayer 21 on the substrate 1; the width of the touch portion 41 whose orthographic projection on the substrate 1 is located between two adjacent isolation openings K1 is a first width, and the width of the first sublayer 21 between two adjacent isolation openings K1 is a second width. At least a portion of the first width of the touch portion 41 is less than or equal to the second width, and greater than or equal to half of the second width.

[0128] In this embodiment, by limiting the first width d1 of at least a portion of the touch portion 41 to be less than or equal to the second width d2, and greater than or equal to half of the second width d2, the first width d1 of the touch portion 41 is not too small, thus reducing the resistance of the touch portion 41. At the same time, the first width d1 is prevented from being too large, which would block the light-emitting area of ​​the display panel 100 surrounded by the first sub-layer 21. This ensures the light-emitting effect of the display panel 100, avoids color shift caused by the blockage of the touch portion 41, and improves the performance of the display panel 100.

[0129] Please refer to Figures 10 and 11. In some optional embodiments, the orthographic projection of the connecting portion L on the substrate 1 includes an arc-shaped first edge B1; along the extension direction of the straight edge N1 connected to the first edge B1, the length of the first edge B1 is greater than or equal to 0.2 micrometers.

[0130] It is understood that the first edge B1 may include endpoints that are respectively connected to two adjacent straight edges N1. The length of the first edge B1 may refer to the distance between two virtual straight lines passing through the two endpoints of the first edge B1 in the extension direction of the straight edge N1 that is correspondingly connected to the first edge B1. Both virtual straight lines extend in a direction perpendicular to the extension direction of the straight edge N1 that is correspondingly connected to the first edge B1.

[0131] It is understandable that the longer the length of the first edge B1 is along the extension direction of the straight edge N1 connected to the first edge B1, the wider the width of the corresponding connection L will be, and the smaller the corresponding impedance will be. However, this may affect the light emission of the display panel. Therefore, the length of the first edge B1 should not be too large along the extension direction of the straight edge N1 connected to the first edge B1.

[0132] Optionally, the length of the first edge B1 can be equal to any one of 0.2 micrometers, 0.3 micrometers, 0.4 micrometers, or 0.5 micrometers along the extension direction of the straight edge N1 connected to the first edge B1.

[0133] Understandably, for display panels of different sizes, the length of the first edge B1 can be adjusted accordingly along the extension direction of the straight edge N1 connected to the first edge B1. For example, for small-sized display panels, when the size of the display panel is less than or equal to 8 inches, the corresponding display panel can be a small-sized display panel, such as a display panel for mobile phones, wearables, etc. Correspondingly, the length of the first edge B1 can be appropriately reduced along the extension direction of the straight edge N1 connected to the first edge B1. For example, the length of the first edge B1 can be equal to 0.2 micrometers along the extension direction of the straight edge N1 connected to the first edge B1.

[0134] When the size of the display panel is greater than or equal to 10 inches and less than or equal to 12 inches, the corresponding display panel can be a medium-sized display panel, such as a display panel for tablets, TVs, or automotive displays. Correspondingly, the length of the first edge B1 can be appropriately increased along the extension direction of the straight edge N1 connected to the first edge B1. For example, the length of the first edge B1 can be equal to 0.4 micrometers along the extension direction of the straight edge N1 connected to the first edge B1.

[0135] Optionally, the two straight edges N1 that extend in opposite directions intersect to form a cross-shaped connecting part L. The connecting part L includes four first edges B1, which are arranged opposite each other in pairs, and the two ends of the first edges B1 are respectively connected to the two straight edges N1.

[0136] Optionally, the two straight edges N1 that intersect in the extension direction can also form a T-shaped connecting part L. The connecting part L can include two first edges B1. One end of the two first edges B1 can be connected to the two opposite sides of the same straight edge N1 along the width direction, and the other end of the two first edges B1 can be connected to the same side of another straight edge N1.

[0137] Please refer to Figures 10 and 11. In some optional embodiments, the orthographic projection of the straight edge N1 on the substrate 1 includes a first straight edge Q1; the orthographic projection of the isolation opening K1 on the substrate 1 includes a second edge B2 that is at least partially opposite to the first edge B1 and a second straight edge Q2 that is at least partially opposite to the first straight edge Q1, the second edge B2 being arc-shaped; the minimum distance b1 between the first edge and the opposite second edge is greater than the minimum distance b2 between the first straight edge Q1 and the opposite second straight edge Q2.

[0138] In this embodiment, the minimum distance b1 between the first edge and the opposite second edge of the connecting part L can refer to selecting a point on the arc-shaped first edge B1 and another point on the arc-shaped second edge B2. The two points with the smallest distance between them correspond to the minimum distance. By limiting the minimum distance b1 between the first edge and the opposite second edge to be greater than the minimum distance b2 between the first straight edge Q1 and the opposite second straight edge Q2, the occlusion of the connecting part L on the corresponding isolation opening K1 is reduced, thus ensuring the light emission effect of the display panel.

[0139] In this embodiment, the second edge B2 and the second straight edge Q2 in the orthographic projection of the isolation opening K1 on the substrate 1 are connected. For example, the orthographic projection of the isolation opening K1 on the substrate 1 can be a curved rectangle, and the second edge B2 corresponds to the corner portion of the curved rectangle.

[0140] Optionally, the central angle corresponding to the first edge B1 is smaller than the central angle corresponding to the second edge B2. Considering that the width of the isolation opening K1 is larger than the width of the touch part 41, the central angle corresponding to the first edge B1 is smaller than the central angle corresponding to the second edge B2 during manufacturing to reduce manufacturing difficulty and match the size of the isolation opening K1 and the touch part 41.

[0141] Referring to Figures 12 and 14, in some optional embodiments, away from the substrate 1, the display panel further includes a second electrode layer 6, a light-emitting functional layer 3, and a first electrode layer 5 stacked together. The light-emitting functional layer 3 includes light-emitting structures 31 at least partially located in each isolation opening K1. The second electrode layer 6 includes a plurality of insulatingly disposed second electrode blocks. The orthographic projection of the second electrode blocks on the substrate 1 includes a third edge B3 disposed at least partially opposite to the first edge B1. The third edge B3 is arc-shaped. The central angle corresponding to the third edge B3 is smaller than the central angle corresponding to the second edge B2.

[0142] In this embodiment, considering material properties, manufacturing process and size factors, the central angle corresponding to the third edge B3 of the second electrode block can be limited to be smaller than the central angle corresponding to the second edge B2, so as to ensure that the size of the isolation opening K1 corresponding to the second edge B2 is large enough to ensure the light emission effect.

[0143] Optionally, the orthographic projections of the second electrode block and the isolation opening K1 on the substrate 1 can be set accordingly. For example, when the orthographic projection of the isolation opening K1 on the substrate 1 is a curved rectangle, the orthographic projection of the second electrode block on the substrate 1 can also be a curved rectangle.

[0144] Optionally, considering that the size of the touch unit 41 should not be set too large, otherwise it will affect the light emission of the display panel, the central angle corresponding to the first edge B1 is limited to be smaller than the central angle corresponding to the third edge B3, so as to improve the obstruction of the display panel by the touch unit 41.

[0145] Please refer to Figures 12 and 14. In some optional embodiments, the orthographic projection of the touch portion 41 on the substrate 1 and the orthographic projection of the second electrode block on the substrate 1 do not overlap. That is, the orthographic projection of the connecting portion L or the straight edge portion N1 on the substrate 1 does not overlap with the orthographic projection of the second electrode block on the substrate 1, so as to avoid mutual interference.

[0146] Of course, depending on the size of the display panel, the positional relationship between the orthographic projection of the touch unit 41 on the substrate 1 and the orthographic projection of the second electrode block on the substrate 1 is not limited to the example described above. Optionally, for medium-sized display panels, the orthographic projection of the touch unit 41 on the substrate 1 and the orthographic projection of the second electrode block on the substrate 1 may partially overlap.

[0147] Please refer to Figure 14. In some optional embodiments, the display panel further includes a pixel limiting layer 9. The pixel limiting layer 9 is disposed between the substrate 1 and the isolation structure 2. The pixel limiting layer 9 surrounds and forms a plurality of pixel openings K2. The pixel openings K2 are connected to the corresponding isolation openings K1. The light-emitting structure 31 is at least partially located in each pixel opening K2. The orthographic projection of the pixel openings K2 on the substrate 1 includes a fourth edge B4 that is at least partially corresponding to the first edge B1. The fourth edge B4 is arc-shaped.

[0148] The central angle corresponding to the fourth edge B4 is greater than the central angle corresponding to the third edge B3; and / or, the central angle corresponding to the fourth edge B4 is less than the central angle corresponding to the second edge B2.

[0149] In this embodiment, considering that the shape and size of the pixel opening K2 will affect the light emission of the light-emitting structure 31, the central angle corresponding to the fourth edge B4 can be limited to be greater than the central angle corresponding to the third edge B3 according to the material properties, manufacturing process and size factors, so as to ensure the light emission effect.

[0150] At the same time, the central angle corresponding to the fourth edge B4 can be limited to be smaller than the central angle corresponding to the second edge B2, so as to avoid the second edge B2 corresponding to the isolation opening K1 affecting the light emission of the light-emitting structure 31.

[0151] Please refer to Figure 13. In some optional embodiments, the display panel includes a display area AA and a non-display area NA disposed adjacent to the display area AA. The non-display area NA includes a border area BA and a virtual pixel area XA located between the display area AA and the border area BA. A touch portion 41 is provided in the virtual pixel area XA. At least two touch portions 41 are connected to form a connecting portion L. The orthographic projection of the connecting portion L on the substrate 1 includes an arc-shaped first edge B1.

[0152] It should be noted that a virtual light-emitting structure P can be provided within the virtual pixel area XA. The light-emitting functional layer 3 located within the virtual pixel area XA does not emit light, meaning that the light-emitting structure 31 is not electrically connected to the pixel circuits in the array layer. Optionally, the light-emitting functional layer 3 is cut off in the virtual pixel area XA and does not extend to the border area BA.

[0153] In this embodiment, the touch portion 41 in the virtual pixel area XA can adopt the same structural form as the touch portion 41 in the display area AA, so as to facilitate uniform manufacturing and reduce manufacturing costs. In the virtual pixel area XA, the orthogonal projection of the connecting portion L on the substrate 1 also includes an arc-shaped first edge B1 to increase the width a1 of the connecting portion, thereby reducing the impedance of the touch portion 41 and improving the signal transmission effect.

[0154] Optionally, the non-display area NA includes a border area BA, in which a touch unit 41 is provided; the line width of the touch unit 41 in the border area BA is greater than the line width of the touch unit 41 in the display area AA.

[0155] It should be noted that, considering that the touch portion 41 in the display area AA may reduce its obstruction of the light-emitting structure 31 by reducing the line width of the touch portion 41 in the display area AA, reducing the line width of the touch portion 41 in the display area AA will lead to an increase in the impedance of the touch portion 41, affecting the touch effect. In order to improve the above problem, this embodiment increases the line width of the touch portion 41 in the border area BA to reduce the overall impedance of the touch portion 41 and improve the touch effect.

[0156] Please refer to Figures 14 and 15. In some optional embodiments, in the display area AA, the isolation structure 2 is provided with a light-transmitting opening K4. The orthographic projection of the light-transmitting opening K4 on the substrate 1 and the orthographic projection of the light-emitting structure 31 on the substrate 1 do not overlap.

[0157] In the display area AA, the touch part 41 forms a first opening K3, and the orthographic projection of the area formed by the first opening K3 on the substrate 1 covers the orthographic projection of the area formed by the light-transmitting opening K4 on the substrate 1.

[0158] In a first cross section that simultaneously penetrates the light-transmitting opening K4 and the first opening K3 and is perpendicular to the substrate 1, the distance between the orthographic projection of the light-transmitting opening K4 on the substrate 1 and the orthographic projection of the first opening K3 on the substrate 1 includes a first distance e1 and a second distance e2, which are not equal. Furthermore, in a second cross section that simultaneously penetrates the light-transmitting opening K4 and the first opening K3 and is perpendicular to the substrate 1, the distance between the orthographic projection of the light-transmitting opening K4 on the substrate 1 and the orthographic projection of the first opening K3 on the substrate 1 includes a third distance e3 and a fourth distance e4, which may be equal or not equal.

[0159] It is understandable that by setting a light-transmitting opening K4 on the isolation structure 2 of the display area AA, the light transmittance of the display area AA of the display panel can be improved, and the orthogonal projection of the touch part 41 on the substrate 1 can be set around the orthogonal projection of the light-transmitting opening K4 on the substrate 1. That is, the size of the first opening K3 formed by the touch part 41 can be larger than the size of the light-transmitting opening K4, so as to avoid the touch part 41 from blocking the light-transmitting opening K4 and ensure the light transmission effect.

[0160] Optionally, in a first cross section that simultaneously penetrates the light-transmitting opening K4 and the first opening K3 and is perpendicular to the substrate 1, the distance between the orthographic projection of the light-transmitting opening K4 on the substrate 1 and the orthographic projection of the first opening K3 on the substrate 1 includes a first distance e1 and a second distance e2, the first distance e1 and the second distance e2 are not equal. Furthermore, in a second cross section that simultaneously penetrates the light-transmitting opening K4 and the first opening K3 and is perpendicular to the substrate 1, the distance between the orthographic projection of the light-transmitting opening K4 on the substrate 1 and the orthographic projection of the first opening K3 on the substrate 1 includes a third distance e3 and a fourth distance e4, the third distance e3 and the fourth distance e4 may be equal or not equal.

[0161] Please refer to Figure 16. In some optional embodiments, the straight edge N1 is provided with a break T; and / or, a portion of the connecting part L is provided with a break T.

[0162] It is understandable that since each touch unit 41 can form a grid-like touch electrode, and at least some of the touch electrodes need to be insulated from each other, a break T can be provided on the straight edge N1 or the connecting part L to achieve isolation. Depending on actual needs, the break T can be provided at various positions of the touch unit 41 without any special limitation.

[0163] In some alternative embodiments, the length of the fracture T along a direction parallel to the plane of the substrate 1 is greater than or equal to 2.5 micrometers and less than or equal to 5 micrometers.

[0164] Understandably, the extension length of the fracture T along the direction parallel to the plane of substrate 1 should not be too small, as this would hinder fabrication and may pose a short-circuit risk; conversely, it should not be too large, as this could affect touch recognition. Optionally, the extension length of the fracture T along the direction parallel to the plane of substrate 1 can be any one of 2.5 micrometers, 3 micrometers, 3.5 micrometers, 4 micrometers, 4.5 micrometers, or 5 micrometers.

[0165] Referring to Figure 17, in some optional embodiments, the orthographic projection of the fracture T on the substrate 1 includes an arc-shaped fifth edge B5, the central angle corresponding to the fifth edge B5 being smaller than the central angle corresponding to the first edge B1.

[0166] Considering material properties, manufacturing process and size factors, the orthogonal projection edge of the fracture T on the substrate 1 can also include an arc shape. Furthermore, considering the size of the touch part 41 itself, the central angle corresponding to the fifth edge B5 can be limited to be smaller than the central angle corresponding to the first edge B1, so as to facilitate manufacturing.

[0167] Optionally, the radius of the circle corresponding to the fifth edge B5 is greater than or equal to 2 micrometers. Understandably, since the fifth edge B5 is arc-shaped, its corresponding radius is the radius of the circle. The radius of the circle corresponding to the fifth edge B5 should not be too small, as this would increase the difficulty of fabrication. For example, the radius of the circle corresponding to the fifth edge B5 can be any one of 2 micrometers, 3 micrometers, 4 micrometers, or 5 micrometers.

[0168] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, comprising: substrate; An isolation structure is disposed on one side of the substrate and surrounds a plurality of isolation openings, the isolation structure including a first sublayer; A touch layer is disposed on the side of the first sub-layer opposite to the substrate. The touch layer includes a touch portion, and the orthographic projection of the touch portion on the substrate is located within the orthographic projection of the first sub-layer on the substrate. Wherein, the width of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings is the first width, the width of the first sub-layer between two adjacent isolation openings is the second width, and at least a portion of the first width of the touch portion is less than or equal to the second width, and greater than or equal to half of the second width.

2. The display panel according to claim 1, wherein, The first width is less than or equal to three-quarters of the second width, and greater than or equal to one-half of the second width.

3. The display panel according to claim 1, wherein, The orthographic projection of the touch portion on the substrate, located between two adjacent isolation openings, includes a first dividing line. The orthographic projection of the first sub-layer corresponding to the touch portion on the substrate includes a second dividing line. The extending directions of the first dividing line and the second dividing line are the same as the extending directions of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings. The spacing between the first dividing line and the second dividing line is less than or equal to 2 μm.

4. The display panel according to claim 1, wherein, Along a direction perpendicular to the plane of the substrate, the thickness of the touch portion is greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms.

5. The display panel according to claim 1, wherein, The distance between the edge of the orthographic projection of the touch portion on the substrate located between two adjacent isolation openings and the edge of the orthographic projection of the corresponding first sublayer on the substrate is greater than or equal to 3 μm and less than or equal to 10 μm.

6. The display panel according to claim 1, wherein, The display panel further includes a conductive portion disposed on a different layer from the touch portion and an insulating layer disposed between the touch portion and the conductive portion, wherein the conductive portion and the touch portion are connected through a through hole disposed in the insulating layer.

7. The display panel according to claim 1, wherein, The touch unit includes a first sub-part and a second sub-part connected to each other. The first sub-part extends along a first direction, and the second sub-part extends along a second direction. Both the first direction and the second direction are parallel to the direction of the plane on which the substrate is located, and the first direction and the second direction intersect each other.

8. The display panel according to claim 1, wherein, It also includes a light-emitting functional layer, which includes light-emitting structures at least partially located in each of the isolation openings; the light-emitting functional layer includes a first light-emitting group and a second light-emitting group, the first light-emitting group and the second light-emitting group each including two adjacent light-emitting structures; Along a direction parallel to the plane of the substrate, there is a first interval between the orthographic projections of two adjacent light-emitting structures in the first light-emitting group onto the substrate, and a second interval between the orthographic projections of two adjacent light-emitting structures in the second light-emitting group onto the substrate, wherein the first interval is greater than the second interval.

9. The display panel according to claim 8, wherein, The width of the first sub-layer located within the first interval is greater than the width of the first sub-layer located within the second interval.

10. The display panel according to claim 8 or 9, wherein, The width of the touch portion located within the first interval is greater than the width of the touch portion located within the second interval.

11. The display panel according to claim 1, wherein, Along a direction away from the substrate, the isolation structure includes a second sublayer and a first sublayer stacked together, wherein the orthographic projection of the second sublayer onto the substrate lies within the orthographic projection of the first sublayer onto the substrate.

12. The display panel according to claim 1, wherein, It also includes a light-emitting functional layer and a first encapsulation layer, wherein the light-emitting functional layer includes light-emitting structures at least partially located in each of the isolation openings, and the first encapsulation layer is at least partially disposed on the side of the light-emitting functional layer opposite to the substrate.

13. The display panel according to claim 12, wherein, The display panel further includes a second encapsulation layer, which is disposed on the side of the first encapsulation layer and the isolation structure away from the substrate.

14. The display panel according to claim 13, wherein, Along a direction perpendicular to the plane of the substrate, the thickness of the second encapsulation layer is greater than or equal to 10 μm and less than or equal to 17 μm.

15. The display panel according to claim 13, wherein, It also includes an organic layer disposed between the touch layer and the second encapsulation layer, with the thickness of the organic layer being greater than or equal to 1.5 μm and less than or equal to 5 μm along a direction perpendicular to the plane of the substrate.

16. A display panel, comprising: substrate; An isolation structure is disposed on one side of the substrate and surrounds a plurality of isolation openings, the isolation structure including a first sublayer; A touch layer is disposed on the side of the first sub-layer opposite to the substrate. The touch layer includes a touch portion, and the orthographic projection of the touch portion on the substrate is located within the orthographic projection of the first sub-layer on the substrate. The area of ​​the touch portion projected onto the first sub-layer between two adjacent isolation openings on the substrate is the first area, and the area of ​​the first sub-layer corresponding to the touch portion projected onto the substrate is the second area. The first area is greater than or equal to half of the second area and less than or equal to the second area.

17. A display panel, comprising: substrate; An isolation structure is disposed on one side of the substrate and surrounds a plurality of isolation openings, the isolation structure including a first sublayer; A touch layer is disposed on the side of the first sub-layer opposite to the substrate. The touch layer includes a touch portion, and the orthographic projection of the touch portion on the substrate is located within the orthographic projection of the first sub-layer on the substrate. Wherein, along the direction perpendicular to the plane where the substrate is located, the thickness of the touch portion is greater than or equal to 4000 angstroms and less than or equal to 6000 angstroms.

18. The display panel according to claim 17, wherein, The width of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings is a first width, and the width of the first sub-layer between two adjacent isolation openings is a second width. At least a portion of the first width of the touch portion is less than or equal to the second width, and greater than or equal to half of the second width.

19. The display panel according to claim 17, wherein, The orthographic projection of the touch portion between two adjacent isolation openings on the substrate includes a first dividing line, and the orthographic projection of the first sub-layer corresponding to the touch portion on the substrate includes a second dividing line. The extending directions of the first dividing line and the second dividing line are the same as the extending directions of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings. The spacing between the first dividing line and the second dividing line is less than or equal to 2 μm.

20. The display panel according to claim 17, wherein, It also includes a light-emitting functional layer, which includes light-emitting structures at least partially located in each of the isolation openings. The light-emitting functional layer includes a first light-emitting group and a second light-emitting group, and the first light-emitting group and the second light-emitting group each include two adjacent light-emitting structures. Along a direction parallel to the plane of the substrate, there is a first interval between the orthographic projections of two adjacent light-emitting structures in the first light-emitting group onto the substrate, and a second interval between the orthographic projections of two adjacent light-emitting structures in the second light-emitting group onto the substrate, wherein the first interval is greater than the second interval.

21. The display panel according to claim 20, wherein, The width of the first sub-layer located within the first interval is greater than the width of the first sub-layer located within the second interval; and / or, the width of the touch portion located within the first interval is greater than the width of the touch portion located within the second interval.

22. A display panel, comprising: substrate; An isolation structure is disposed on one side of the substrate and forms a plurality of isolation openings; A touch layer is disposed on the side of the isolation structure opposite to the substrate. The touch layer includes a touch portion. The orthographic projection of the touch portion on the substrate is located within the orthographic projection of the isolation structure on the substrate. The touch portion includes a straight edge portion and a connecting portion. The straight edge portion is connected to the straight edge portion through the connecting portion. Wherein, along a direction parallel to the plane where the substrate is located, at least a portion of the width of the connecting portion is greater than the width of the straight edge portion.

23. The display panel according to claim 22, wherein, Along a direction away from the substrate, the isolation structure includes a second sublayer and a first sublayer stacked together, wherein the orthographic projection of the second sublayer onto the substrate is located within the orthographic projection of the first sublayer onto the substrate; The orthographic projection of the connecting portion on the substrate lies within the orthographic projection of the second sublayer on the substrate.

24. The display panel according to claim 23, wherein, The orthogonal projection of the touch unit on the substrate is located within the orthogonal projection of the first sub-layer on the substrate; The width of the touch portion whose orthographic projection on the substrate is located between two adjacent isolation openings is a first width, and the width of the first sub-layer between two adjacent isolation openings is a second width. At least a portion of the first width of the touch portion is less than or equal to the second width, and greater than or equal to half of the second width.

25. The display panel according to claim 22, wherein, At least one of the connecting portions, when projected onto the substrate, includes an arc-shaped first edge. Along the extending direction of the straight edge corresponding to the first edge, the length of the first edge is greater than or equal to 0.2 micrometers.

26. The display panel according to claim 25, wherein, The orthographic projection of the straight edge portion onto the substrate includes the first straight edge connected to the first edge; In the same isolation opening, the orthographic projection of the isolation opening on the substrate includes a second edge that is at least partially corresponding to the first edge and a second straight edge that is at least partially opposite to the first straight edge, wherein the second edge is arc-shaped; The minimum distance between the first edge and the opposite second edge is greater than the minimum distance between the first straight edge and the opposite second straight edge.

27. The display panel according to claim 26, wherein, The central angle corresponding to the first edge is smaller than the central angle corresponding to the second edge.

28. The display panel according to claim 26, wherein, Along a direction away from the substrate, the display panel further includes a second electrode layer, a light-emitting functional layer, and a first electrode layer stacked together. The light-emitting functional layer includes light-emitting structures at least partially located in each of the isolation openings. The second electrode layer includes a plurality of insulated second electrode blocks. The orthographic projection of the second electrode block onto the substrate includes a third edge that is at least partially opposite to the first edge, and the third edge is arc-shaped. The central angle corresponding to the third edge is smaller than the central angle corresponding to the second edge; And / or, the central angle corresponding to the first edge is smaller than the central angle corresponding to the third edge.

29. The display panel according to claim 28, wherein, The orthographic projection of the touch unit on the substrate and the orthographic projection of the second electrode block on the substrate do not overlap.

30. The display panel according to claim 28, wherein, The display panel further includes a pixel defining layer, which is disposed between the substrate and the isolation structure. The pixel defining layer encloses and forms a plurality of pixel openings, which are connected to the corresponding isolation openings. The light-emitting structure is at least partially located within each pixel opening. The orthographic projection of the pixel opening on the substrate includes a fourth edge that is at least partially corresponding to the first edge, and the fourth edge is arc-shaped. The central angle corresponding to the fourth edge is greater than the central angle corresponding to the third edge; And / or, the central angle corresponding to the fourth edge is smaller than the central angle corresponding to the second edge.

31. The display panel according to claim 30, wherein, The display panel includes a display area and a non-display area disposed adjacent to the display area. The non-display area includes a border area and a virtual pixel area located between the display area and the border area. The virtual pixel area is provided with the touch portion, and at least two of the touch portions are connected to form the connecting portion. The orthographic projection of the connecting portion on the substrate includes a first arc-shaped edge.

32. The display panel according to claim 31, wherein, In the display area, the isolation structure is provided with a light-transmitting opening, and the orthographic projection of the light-emitting structure on the substrate and the orthographic projection of the light-emitting structure on the substrate do not overlap; In the display area, the touch portion forms a first opening, and the orthographic projection of the area enclosed by the first opening on the substrate covers the orthographic projection of the area enclosed by the light-transmitting opening on the substrate. Within a first cross-section that simultaneously penetrates the light-transmitting opening and the first opening and is perpendicular to the substrate, the distance between the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the first opening on the substrate includes a first distance and a second distance, which are not equal. Furthermore, within a second cross-section that simultaneously penetrates the light-transmitting opening and the first opening and is perpendicular to the substrate, the distance between the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the first opening on the substrate includes a third distance and a fourth distance, which may be equal or unequal.

33. The display panel according to claim 25, wherein, The straight edge portion is provided with a break; And / or, some of the connecting portions are provided with a break.

34. The display panel according to claim 33, wherein, The orthographic projection of the fracture on the substrate includes an arc-shaped fifth edge, and the central angle corresponding to the fifth edge is smaller than the central angle corresponding to the first edge.

35. The display panel according to claim 34, wherein, The radius of the circle corresponding to the fifth edge is greater than or equal to 2 micrometers.

36. The display panel according to claim 33, wherein, Along a direction parallel to the plane of the substrate, the length of the fracture is greater than or equal to 2.5 micrometers and less than or equal to 5 micrometers.

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