DISPLAY PANEL, MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE

Abstract

A display panel comprises a display region (110) and a non-display region (120). The non-display region (120) comprises a first non-display region. A signal line layer (200) is provided on one side of a base substrate (100). A touch layer (300) is provided on a side of the signal line layer (200) remote from the base substrate (100) and comprises a plurality of touch wires (310). In at least some of the touch wires (310) in the first non-display region, a first touch wire (311) and a second touch wire (312) belonging to the same touch wire (310) each have a first center line (O1) and a second center line (O2). The first center line (O1) and the second center line (O2) are offset in a direction perpendicular to the extension direction of the touch wires (310).The display panel can reduce the light reflection by the signal line (210) in the non-display area (120) and prevent this area from reflecting the light and shining when there is strong light, which would impair the display quality.

Description

Technical area

[0001] The present disclosure relates to the field of display technology, and more particularly to a display panel, a manufacturing method thereof, and a display device. State of the art

[0002] Flexible touch (Flexmeshlayeroncell, FMLOC) is currently used to form a flexible touch panel. It includes a touch layer integrated into a flexible display substrate, the uppermost part of which is protected by an organic layer. In an OLED (Organic Light-Emitting Diode) touch panel, signal lines, such as data signal lines, are typically densely arranged in the peripheral area. These signal lines are made of metallic materials. Therefore, when strong light is irradiated onto the display panel, the densely arranged signal lines in the peripheral area are likely to reflect light, which affects the display quality.

[0003] The information disclosed in the “Prior Art” section is intended only to enhance the understanding of the background of the present application and may therefore contain information that is not part of the prior art known to a person skilled in the art. Disclosure of the invention

[0004] It is an object of the present disclosure to provide a display panel, a manufacturing method thereof, and a display device for reducing light reflection by the signal line layer.

[0005] In order to achieve the above-mentioned object of the present invention, the following technical solutions are adopted in the present disclosure.

[0006] According to a first aspect of the present disclosure, there is provided a display panel comprising: - a base substrate comprising a display area and a non-display area, - a signal line layer provided on one side of the base substrate and comprising a plurality of signal lines, the signal lines being at least partially located in the non-display area, - a touch layer provided on a side of the signal line layer remote from the base substrate, wherein the touch layer comprises a plurality of touch wires, and the touch layer comprises a first touch layer and a second touch layer stacked one above the other, and a first insulating layer provided between the first touch layer and the second touch layer, wherein the touch wires are located at least partially in the non-display region, wherein the plurality of touch wires comprises a plurality of first touch wires and a plurality of second touch wires stacked one above the other, wherein the first touch wires are distributed in the first touch layer and the second touch wires are distributed in the second touch layer, and wherein each of the touch wires comprises the first touch wire and the second touch wire,which are connected in parallel;, wherein the non-display region comprises a first non-display region located at the periphery of the display region, wherein the orthographic projections of the plurality of touch wires in the first non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate; wherein, in at least a part of the touch wires in the first non-display region, the first touch wire and the second touch wire belonging to the same touch wire each have a first center line and a second center line, the first center line and the second center line being offset in a direction perpendicular to the extending direction of the touch wires.

[0007] In one embodiment of the present disclosure, orthographic projections of the plurality of signal lines located at least partially in the non-display area on the base substrate are within the orthographic projection of a combination of at least one of the first touch wires and at least one of the second touch wires on the base substrate.

[0008] In one embodiment of the present disclosure, orthographic projections of the first touch wire and the second touch wire, which belong to the same touch wire, at least partially overlap on the base substrate. The first touch wires and the second touch wires, whose orthographic projections on the base substrate overlap, are electrically connected through the first insulating layer via vias (VIAs) in a one-to-one correspondence.

[0009] In one embodiment of the present disclosure, a width of an intersection region of the orthographic projection of the first touch wire and the orthographic projection of the second touch wire, which belong to the same touch wire, on the base substrate in the line width direction is not less than 1.5 μm.

[0010] In one embodiment of the present disclosure, the non-display region further comprises a second straight region located on one side of the display region in a second direction; wherein the first non-display area comprises: - a first straight area located on one side of the display area in a first direction, - a first corner region connecting the first straight region and the second straight region; wherein an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the first straight region or the first corner region are alternately arranged on the base substrate.

[0011] In one embodiment of the present disclosure, the first non-display area further comprises: - a third straight area located on a side of the display area remote from the first straight area; - a second corner region connecting the second straight region and the third straight region; wherein an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the third straight region or the second corner region are alternately arranged on the base substrate.

[0012] In one embodiment of the present disclosure, the first touch wire and the second touch wire each include a first straight portion, a first connecting portion, a first curved portion, a second connecting portion, and a second straight portion, which are sequentially connected. The first straight portion is located in the first straight region, the first connecting portion, the first curved portion, and the second connecting portion are all located in the first corner region, and the second straight portion is located in the second straight region. An intersection area of ​​the orthographic projection of the second connecting portion of the first touch wire and the orthographic projection of the second connecting portion of the correspondingly connected second touch wire on the base substrate gradually decreases along the direction from the second straight region to the first corner region.

[0013] In one embodiment of the present disclosure, the first touch wire and the second touch wire further each include a third connection portion, a second curved portion, a fourth connection portion, and a third straight portion, wherein the third connection portion, the second curved portion, and the fourth connection portion are all located in the second corner region, and the third straight portion is located in the third straight region. An intersection area of ​​the orthographic projection of the third connection portion of the first touch wire and the orthographic projection of the correspondingly connected third connection portion of the second touch wire on the base substrate gradually decreases along the direction from the second straight region to the second corner region.

[0014] In one embodiment of the present disclosure, the ratio of an intersection area of ​​an orthographic projection of the second straight portion of the first touch wire and an orthographic projection of the second straight portion of the second touch wire on the base substrate to an area of ​​the second straight portion of the first touch wire or to an area of ​​the second straight portion of the second touch wire is not less than 95%.

[0015] In one embodiment of the present disclosure, the substrate substrate further includes an opening region located in the display region, and the non-display region further includes a second non-display region between the opening region and the display region. The touch layer further includes a plurality of touch electrodes, the plurality of touch electrodes including a plurality of first electrode groups extending along a first direction and a plurality of second electrode groups extending along a second direction, the first electrode groups and the second electrode groups being insulated from each other. The opening region divides at least one of the first electrode groups and at least one of the second electrode groups into two sub-electrode groups located on both sides of the opening region.The touch wires connect two sub-electrode groups of the first electrode group, or the touch wires connect two sub-electrode groups of the second electrode group. The orthographic projections of the plurality of touch wires in the second non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate. For at least some of the touch wires in the second non-display region, the first touch wire and the second touch wire, which belong to the same touch wire, each have a first center line and a second center line, wherein the first center line and the second center line are offset in a direction perpendicular to the extension direction of the touch wires.

[0016] In one embodiment of the present disclosure, an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the second non-display region are alternately arranged on the base substrate.

[0017] In one embodiment of the present disclosure, a line width of the first touch wire and a line width of the second touch wire are not less than 4.2 µm. A distance between two adjacent first touch wires is not less than 3 µm; a distance between two adjacent second touch wires is not less than 3 µm.

[0018] In one embodiment of the present disclosure, the signal line is a data signal line.

[0019] In one embodiment of the present disclosure, a display panel includes: - a base substrate comprising a display area and a non-display area, - a signal line layer provided on one side of the base substrate and comprising a plurality of signal lines, the signal lines being at least partially located in the non-display area, - a touch layer provided on a side of the signal line layer remote from the base substrate, the touch layer comprising a plurality of touch wires located at least partially in the non-display area; the non-display area comprising a first non-display area located at the periphery of the display area, the orthographic projections of the plurality of touch wires in the non-display area on the base substrate at least partially overlapping the orthographic projections of the plurality of signal lines on the base substrate; wherein in the first non-display region, a first gap is present between orthographic projections of two adjacent touch wires on the base substrate, and in the non-display region except for the first non-display region, a second gap is present between orthographic projections of two adjacent touch wires on the base substrate, the first gap being smaller than the second gap.

[0020] In one embodiment of the present disclosure, the touch layer comprises a first touch layer and a second touch layer stacked one on top of the other, and a first insulating layer provided between the first touch layer and the second touch layer; wherein each of the plurality of touch wires comprises a first touch wire and a second touch wire connected in parallel; wherein the first touch wire is distributed on the first touch layer and the second touch wire is distributed on the second touch layer; wherein, for at least a portion of the touch wires, the orthographic projections of the first touch wire and the second touch wire belonging to the same touch wire at least partially overlap on the base substrate.A specific intersection area between the first touch wire and the second touch wire in the first non-display region is smaller than a specific intersection area between the first touch wire and the second touch wire in the second straight region in the non-display region except for the first non-display region.

[0021] In one embodiment of the present disclosure, the first touch wire includes a first edge and a second edge arranged opposite each other, and the second touch wire includes a third edge and a fourth edge arranged opposite each other. In the first non-display region, an orthographic projection of the third edge on the base substrate lies between an orthographic projection of the first edge on the base substrate and an orthographic projection of the second edge on the base substrate; the orthographic projection of the second edge on the base substrate lies between the orthographic projection of the third edge on the base substrate and an orthographic projection of the fourth edge on the base substrate.

[0022] In one embodiment of the present disclosure, the minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires on the base substrate in the first non-display region is the first gap. The minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires on the base substrate in the non-display region excluding the first non-display region is the second gap.

[0023] In one embodiment of the present disclosure, the first gap is 0.1 to 0.3 times as large as the second gap.

[0024] According to a second aspect of the present disclosure, there is provided a method of manufacturing a display panel, comprising: - Providing a base substrate comprising a display area and a non-display area, - forming a signal line layer on one side of the base substrate, which comprises a plurality of signal lines, wherein the signal lines are at least partially located in the non-display area, - forming a touch layer on a side of the signal line layer remote from the base substrate, the touch layer comprising a plurality of touch wires, the touch layer comprising a first touch layer and a second touch layer stacked one on top of the other, and a first insulating layer provided between the first touch layer and the second touch layer;wherein the touch wires are at least partially located in the non-display area, and the plurality of touch wires comprises a plurality of first touch wires and a plurality of second touch wires arranged stacked one on top of the other, the first touch wires being distributed in the first touch layer and the second touch wires being distributed in the second touch layer, and each of the touch wires comprising the first touch wire and the second touch wire connected in parallel; wherein the non-display region comprises a first non-display region located at the periphery of the display region, wherein the orthographic projections of the plurality of touch wires in the first non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate; wherein, in at least a part of the touch wires in the first non-display region, the first touch wire and the second touch wire belonging to the same touch wire each have a first center line and a second center line, the first center line and the second center line being offset in a direction perpendicular to the extending direction of the touch wires.

[0025] In one embodiment of the present disclosure, the material of the touch layer comprises titanium and aluminum, and the formation temperature of the touch layer does not exceed 85°C.

[0026] According to a third aspect of the present disclosure, there is provided a display device comprising a display panel as described in the first aspect.

[0027] In the display panel provided by the present disclosure, at least a portion of the touch wires in the first non-display region includes a first touch wire and a second touch wire belonging to the same touch wire, each having a first center line and a second center line, the first center line and the second center line being offset in a direction perpendicular to the extending direction of the touch wires. Thus, the area of ​​the first touch wire and the second touch wire for shielding the signal line is increased, so that light reflection by the signal lines in this region can be reduced, thereby preventing this region from reflecting light and glare when exposed to strong light, which would impair display quality. Brief description of the drawings

[0028] The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings. Fig. 1 is a schematic diagram of a planar structure of a base substrate in one embodiment of the present disclosure; Fig. 2 is a schematic cross-sectional view of a non-display region of a display panel in an embodiment of the present disclosure; Fig. 3 is a schematic diagram for distribution positions of signal lines in an embodiment of the present disclosure; Fig. 4 is a schematic cross-sectional view of a display area of ​​a display panel in an embodiment of the present disclosure; Fig. 5 is a schematic diagram for distribution positions of a signal line layer and a touch layer in an embodiment of the present disclosure; Fig. 6 is a schematic diagram of an arrangement of signal lines in area A in Fig. 5; Fig. Fig. 7 is a schematic diagram of an arrangement of first touch wires and second touch wires in the area A in Fig. 5; Fig. Fig. 8 is a schematic diagram of a stack arrangement of signal lines, first touch wires and second touch wires in the area A in Fig. 5; Fig. 9 is a schematic diagram of an arrangement of signal lines in area B in Fig. 5; Fig. 10 is a schematic diagram of an arrangement of first touch wires and second touch wires in the region B in Fig. 5; Fig. 11 is a schematic diagram of a stack arrangement of signal lines, first touch wires and second touch wires in the region B in Fig. 5; Fig. 12 is a schematic diagram of an arrangement of signal lines in area C in Fig. 5; Fig. 13 is a schematic diagram of an arrangement of first touch wires and second touch wires in the region C in Fig. 5; Fig. 14 is a schematic diagram of a stack arrangement of signal lines, first touch wires and second touch wires in the region C in Fig. 5; Fig. 15 is a schematic diagram of an arrangement of first touch wires and second touch wires in the area D in Fig. 5; Fig. 16 is a schematic diagram of an arrangement of first touch wires and second touch wire layer in region E in Fig. 5; Fig. 17 is a schematic diagram of an arrangement of first touch wires and second touch wire layer in the region F in Fig. 5; Fig. 18 is a schematic diagram of an arrangement of first touch wires and second touch wire layer in region G in Fig. 5; Fig. 19 is a schematic diagram of an arrangement of first touch wires and second touch wire layer in the region H in Fig. 5; Fig. 20 is a schematic diagram of an arrangement of first touch wires and second touch wire layer in region I in Fig. 5; Fig. 21 is a schematic diagram of an arrangement of touch wires in a second non-display region in one embodiment of the present disclosure; Fig. 22 is a schematic diagram of an arrangement of touch wires in a second non-display region in another embodiment of the present disclosure; Fig. 23 is a schematic diagram of an arrangement of first touch wires and second touch wires in the area J in Fig. 22; Fig. 24 is a schematic diagram of an arrangement of first touch wires and second touch wires in the region K in Fig. 22; Fig. 25 is a schematic structural diagram of a first center line of first touch wires in an embodiment of the present disclosure; Fig. 26 is a schematic structural diagram of a second center line of second touch wires in an embodiment of the present disclosure; Fig. 27 is a cross-sectional view taken along a direction AA' in Fig. 7; Fig. 28 is a schematic structural diagram of a first gap and a second gap in an embodiment of the present disclosure. List of reference symbols

[0029] Y first direction; X second direction; 100 base substrate; 110 display panel; 120 non-display region; 121 first straight region; 122 second straight region; 123 third straight region; 124 first corner region; 125 second corner region; 126 second non-display region; 127 bonding region; 130 opening region; 200 signal line layer; 210 signal line; 213 data signal line; 214 scanning signal line; 215 light-shielding layer; 216 source layer; 217 first gate insulating layer; 218 first gate metal layer; 219 second gate insulating layer; 220 second gate metal layer; 221 interlayer dielectric layer; 222 first source-drain layer; 223 first planarization layer; 224 second source-drain layer; 225 second planarization layer; 226 first electrode layer; 227 light-emitting functional layer; 228 second electrode layer; 229 pixel definition layer; 230 encapsulation layer; 300 touch layer; 301 first touch layer; 302 second touch layer;303 first insulating layer; 304 second insulating layer; 305 protective layer; 310 touch wire; 311 first touch wire; 312 second touch wire; 313 first straight portion; 314 first connecting portion; 315 first curved portion; 316 second connecting portion; 317 second straight portion; 318 third connecting portion; 319 second curved portion; 320 fourth connecting portion; 321 third straight portion; 330 first electrode group; 331 second electrode group; 332 first electrode; 333 second electrode; 334 first bridge line; 335 second bridge line; 336 first connecting line; 337 second connecting line; 400 chip; O1 first center line; O2 second center line; L1 first gap; L2 second gap.; Detailed examples

[0030] Example embodiments will now be described in more detail with reference to the accompanying drawings. However, the embodiments may be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the idea of ​​the example embodiments to those skilled in the art. Like reference numerals throughout the drawings designate like or similar structures, and repeated descriptions thereof are omitted. Furthermore, the drawings are merely schematic representations of this disclosure and are not necessarily drawn to scale.

[0031] Although relative terms such as "top" and "bottom" are used in the description to describe the relative relationship of one designated component to another designated component, these terms are used only for convenience in description, e.g., according to an exemplary direction shown in the drawings. It should be understood that when the illustrated device is turned upside down, the described upper component becomes a lower component. When a structure is located "on top of" another structure, this may mean that the structure is integrally formed on the other structure, or that the structure is disposed "directly" on the other structure, or that the structure is disposed "indirectly" via other structures on the other structure.

[0032] The expressions "one," "an," "this," "the," and "at least one" are used to indicate that there are one or more elements / components, or the like. The expressions "comprise" and "comprise" are used to indicate an open-ended meaning of "include," meaning that there may be other elements / components, etc., in addition to the listed elements / components. The expressions "first," "second," "third," etc., are used only as markers and do not limit the number of objects.

[0033] A transistor is an element with at least three terminals: a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain electrode) and a source electrode (source electrode terminal, source region, or source electrode), and current can flow through the drain electrode, the channel region, and the source electrode. The channel region is the region through which the current primarily flows.

[0034] The first electrode may be a drain electrode and the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. When using transistors with opposite polarity or when the current direction changes during circuit operation, the functions of the "source electrode" and "drain electrode" may be interchanged. Therefore, "source electrode" and "drain electrode" may be interchanged in this description.

[0035] In the prior art, a display panel includes a base substrate, a plurality of subpixels, and a plurality of signal lines provided on one side of the base substrate. The signal lines connect the subpixels and the peripheral chip to control the operating state of each subpixel. The display panel includes a display region and a peripheral region. Signal lines are typically densely arranged in the peripheral region, and the signal lines are made of metal materials. When strong light hits the display panel, the signal lines densely arranged in the periphery can easily reflect the light, thus degrading the display quality.

[0036] As in Fig. 1, Fig. 2, Fig. 5, Fig. 7, Fig. 25 and Fig. 26, one embodiment of the present disclosure provides a display panel including a base substrate 100, a signal line layer 200, and a touch layer 300. The base substrate 100 includes a display region 110 and a non-display region 120. The signal line layer 200 is provided on one side of the substrate 100 and includes a plurality of signal lines 210, and the signal lines 210 are at least partially disposed in the non-display region 120. The touch layer 300 is provided on a side of the signal line layer 200 remote from the base substrate 100. The touch layer 300 includes a plurality of touch wires 310, and the touch layer 300 includes a first touch layer 301 and a second touch layer 302 stacked on top of each other, and a first insulating layer 303 provided between the first touch layer 301 and the second touch layer 303.The touch wires 310 are at least partially located in the non-display area 120, and the plurality of touch wires includes a plurality of first touch wires 311 and a plurality of second touch wires 312 arranged stacked one on top of the other, with the first touch wires 311 distributed in the first touch layer 301 and the second touch wires 312 distributed in the second touch layer 302. Each of the touch wires 310 includes the first touch wire 311 and the second touch wire 312 connected in parallel. The non-display region 120 includes a first non-display region located at the periphery of the display region 110, wherein orthographic projections of the plurality of touch wires 310 in the first non-display region on the base substrate 100 at least partially overlap orthographic projections of the plurality of signal lines 210 on the base substrate 100.In at least a part of the touch wires 310 in the first non-display region, the first touch wire 311 and the second touch wire 312 belonging to the same touch wire 310 each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extending direction of the touch wires 310.

[0037] In the display panel provided by the present disclosure, in at least a portion of the touch wires 310 in the first non-display region, the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, each have a first center line O1 and a second center line O2, and the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extending direction of the touch wires 310. In this way, the area of ​​the first touch wire 311 and the second touch wire 312 for shielding the signal line 210 is increased, so that light reflection by the signal lines 210 in this region can be reduced, thereby preventing this region from reflecting light and glaring when exposed to strong light, which would impair the display quality.

[0038] In the following, each component of the display panel provided by the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings:

[0039] As in Fig. 1 and Fig. As shown in Figure 2, the present disclosure provides a display panel that may be an OLED (Organic Light-Emitting Diode) display panel. The display panel includes a base substrate 100, a signal line layer 200, and a touch layer 300.

[0040] The base substrate 100 includes a display area 110 and a non-display area 120. The display area 110 is used to display images. The non-display area 120 may be located at multiple positions of the display area 110 and may include a plurality of areas. In some embodiments of the present disclosure, the non-display area 120 includes a first non-display area located at the periphery of the display area 110. The non-display area 120 further includes a second straight area 122 located on at least one side of the display area 110 in the second direction X. The first non-display area includes a first straight area 121 and a first corner area 124. The first straight area 121 is located on one side of the display area 110 in the first direction Y. The first corner area 124 connects the first straight area 121 and the second straight area 122.The non-display region 120 also includes a binding region 17 located on a side of the first straight region 121 remote from the display region 110. The number of second straight regions 122 may be one or two. Specifically, in one embodiment, the number of second straight regions 122 is two, arranged on both sides of the display region 110 in the second direction X. And the number of first corner regions 124 is two, connected between the first straight region 121 and the second straight region 122. In addition, the first non-display region also includes a third straight region 123 and a second corner region 125. The third straight region 123 is located on the side of the display region 110 remote from the first straight region 121. The second corner region 125 connects the second straight region 122 and the third straight region 123. And the number of the second corner regions 125 may be two.

[0041] In some embodiments of the present disclosure, the base substrate 100 further includes an opening region 130 located in the display region 110. The opening region 130 can be used for attaching functional modules such as a camera, a proximity sensor, a flash, or a speaker. The shape of the opening region 130 can be an ellipse, a circle, a square, a rounded rectangle, etc. In this embodiment, the non-display region includes a second non-display region 126 between the opening region 130 and the display region 110. The second non-display region 126 can be an annular region surrounding the opening region 130. The non-display region 120 includes the second non-display region 126.Of course, in some embodiments, the first non-display region may include the first straight region 121, the first corner region 124, the third straight side region, the second corner region 125, and the second non-display region 126, as mentioned above.

[0042] As in Fig. 1 to Fig. 3, the signal line layer 200 is provided on one side of the base substrate 100. The signal line layer 200 includes a plurality of signal lines 210 that can be used to transmit various signals. The display panel further includes a plurality of subpixels, and the signal line 210 can be connected to the subpixels and the peripheral chip 400 to transmit various signals to the subpixels. For example, the signal line 210 includes a scanning signal line 214 for transmitting a scanning signal, a data signal line 213 for transmitting a data signal, a light-emitting signal line for transmitting a light-emitting signal, and so on, which are not expressly limited in this disclosure. The signal lines 210 can be located in the display area 110 and the non-display area 120, and different signal lines 210 have different distribution positions on the base substrate 100.In the present disclosure, the signal line 210 is at least partially located in the non-display region 120. That is, the signal line 210 may be divided into a plurality of segments, some of which may be located in the display region 110 and some of which may be located in the non-display region 120. For example, some segments of the data signal line 213 are located in the display region 110 and some segments are located in the non-display region 120, such as the first straight region 121, the first corner region 124, or the second non-display region 126. In another example, some segments of the scanning signal line 214 are located in the display region 110 and some segments are located in the second straight region 122, the first corner region 124, or the second non-display region 126. In another example, some segments of the light-emitting signal line are located in the display region 110 and some segments are located in the second non-display region 126, and so on.Furthermore, in this disclosure, the signal line 210 may be a data signal line 213.

[0043] In the present disclosure, the signal line layer 200 may include a plurality of metal layers. Different signal lines 210 may be distributed in different metal layers, and different segments of the same signal line 210 may also be distributed in different metal layers, which is not expressly limited in this disclosure. The material of the signal line 210 may be a metal material such as molybdenum (Mu) or copper (Cu), but is not limited thereto. In some embodiments of the present disclosure, the number of signal lines 210 located in the first corner region 124, the first straight region 121, and the second non-display region 126 is relatively large, and the arrangement is relatively dense.For example, the distance between two adjacent signal lines 210 located in the first corner region 124 or in the first straight region 121 does not exceed 1.5 µm, for example the distance is 1 µm, 0.5 µm or 0.1 µm.

[0044] As in Fig. As shown in Figure 4, in some embodiments of the present disclosure, the display panel further includes a driver circuit layer and a light-emitting element layer. The driver circuit layer may include the above-mentioned signal line layer 200. The driver circuit layer may be composed of a multilayer film structure. The light-emitting element layer includes a plurality of light-emitting elements. The driver circuit layer may include a pixel circuit used to drive the light-emitting element of the OLED display panel to emit light. Each subpixel may include a pixel circuit and a light-emitting element. The pixel circuit may be a 7T1C, 7T2C, 6T1C, or 6T2C pixel circuit, and its structure is not particularly limited here.Among them, nTmC means that a pixel circuit contains n transistors (denoted by the letter "T") and m capacitors (denoted by the letter "C"). There are a plurality of pixel circuits, and each pixel circuit drives a light-emitting element to emit light. The data signal line 213 is connected to the source or drain of the transistor in the pixel circuit.

[0045] Using a top-gate thin-film transistor as a transistor in a driver circuit as an example, the driver circuit layer comprises a source layer 216, a first gate insulating layer 217, a first gate metal layer 218, a second gate insulating layer 219, and an interlayer dielectric layer 221, a first source and drain layer 222, a first planarization layer 223, a second source and drain layer 224, and a second planarization layer 225.

[0046] The source layer 216 is provided on one side of the base substrate 100. The first gate insulating layer 217 is provided on a side of the source layer 216 remote from the base substrate 100, and the first gate insulating layer 217 covers the source layer 216. The first gate metal layer 218 is provided on a side of the first gate insulating layer 217 remote from the base substrate 100, and the first gate metal layer 218 may include a gate electrode of the transistor and a first plate of the capacitor. The second gate insulating layer 219 is provided on a side of the first gate metal layer 218 remote from the base substrate 100, and the second gate insulating layer 219 covers the first gate metal layer 218. The second gate metal layer 220 is provided on a side of the second gate insulating layer 219 remote from the base substrate 100, and the second gate metal layer 220 may comprise a second plate of the capacitor.The dielectric interlayer 221 is provided on a side of the second gate insulating layer 219 remote from the base substrate 100. The first source and drain layers 222 are provided on a side of the dielectric interlayer 221 remote from the base substrate 100, and the first source and drain layers 222 include a source electrode and a drain electrode of the transistor, which source electrode and drain electrode are connected to the source layer 216. The first planarization layer 223 is arranged on a side of the first source and drain layers 222 remote from the base substrate 100. The second source and drain layers 224 are arranged on a side of the first planarization layer 223 remote from the base substrate 100. The second planarization layer 225 is arranged on a side of the second source and drain layer 224 remote from the base substrate 100.In addition, the driver circuit layer also includes a light shielding layer 215 disposed between the base substrate 100 and the source layer 216.

[0047] The signal line layer 200 may include a first gate metal layer 218, a second gate metal layer 220, a first source and drain layer 222, and a second source and drain layer 224, and the signal lines 210 may be distributed in each of these conductive layers. It should be noted here that the structure of the driver circuit layer of the display panel may also be other structures, for example, a driver circuit layer with bottom-gate transistors, which is not limited in this disclosure.

[0048] The light-emitting element layer is disposed on a side of the driver circuit layer remote from the base substrate 100. The light-emitting element layer also includes a pixel definition layer 229 separating a plurality of light-emitting elements.

[0049] The pixel definition layer 229 is arranged on a side of the driver circuit layer remote from the base substrate 100. The pixel definition layer 229 includes a plurality of pixel openings, and the area defined by each pixel opening is the area of ​​a light-emitting element. The shape of the pixel opening, i.e., the shape of the contour of the orthographic projection of the pixel opening on the base substrate 100, can be a polygon, a smooth closed curve, or other shapes and is not particularly limited here.

[0050] Taking an OLED light-emitting element as an example, the light-emitting element includes a first electrode layer 226, a light-emitting functional layer 227, and a second electrode layer 228, which are arranged sequentially in a direction away from the base substrate 100. The first electrode layer 226 can serve as the anode layer of the light-emitting element. The light-emitting functional layer 227 covers the first electrode layer 226, and the second electrode layer 228 covers the light-emitting functional layer 227. The first electrode layer 226 can be connected to the source / drain of the transistor. The second electrode layer 228 can cover the light-emitting functional layer 227 and serve as the cathode layer of the light-emitting element.The second electrode layer 228 may have a single-layer or multi-layer structure, and its materials may include one or more of conductive metals, metal oxides, and alloys. The light-emitting functional layer 227 is at least partially disposed within the pixel opening and may include a hole-injection layer, a hole-transport layer, a light-emitting material layer, an electron-transport layer, and an electron-injection layer stacked one upon another in a direction away from the base substrate 100. Holes and electrons combine to form excitons in the light-emitting material layer, and the excitons emit photons, generating visible light. The specific principle of light emission will not be described in detail here.

[0051] In some embodiments, the signal line layer 200 may also include a first electrode layer 226 and a second electrode layer 228, ie, the signal lines 210 may be distributed in the first electrode layer 226 and the second electrode layer 228.

[0052] The display panel further includes an encapsulation layer 230 disposed on a side of the light-emitting element layer remote from the base substrate 100, which can be used to protect the light-emitting element layer from corrosion by external water and oxygen. In some embodiments of the present disclosure, thin-film encapsulation (TFE) can be used to achieve encapsulation. Specifically, the encapsulation layer 230 can include a first inorganic layer, an organic layer, and a second inorganic layer, wherein the first inorganic layer covers the surface of the light-emitting element layer remote from the base substrate 100.The organic layer can be disposed on a surface of the first inorganic layer remote from the base substrate 100, and the boundary of the organic layer is defined within the boundary of the first inorganic layer. The second inorganic layer covers the organic layer and the first inorganic layer not covered by the organic layer, thus blocking the penetration of water and oxygen by the second inorganic layer. The flexible organic layer can achieve planarization.

[0053] As in Fig. 1, Fig. 2, Fig. 4 and Fig. 5, the touch layer 300 is provided on the side of the signal line layer 200 remote from the base substrate 100. In particular, the touch layer 300 is provided on the side of the packaging layer 230 remote from the base substrate 100. The touch layer 300 includes a plurality of touch electrodes located in the display area 110 and a plurality of touch wires 310 located in different areas of the base substrate 100. In some embodiments, the touch wire 310 is located at the periphery of the display area 110, i.e., the touch wire 310 is located in the first straight area 121, the second straight area 122, or the first corner area 124. Such touch wires 310 can connect the touch electrodes to integrated circuits or flexible printed circuit boards.In other embodiments, the touch wires 310 may be located in the second non-display area 126 to connect the touch electrodes on both sides of the second non-display area 126. The plurality of touch wires 310 are arranged in different layers. That is, among the plurality of touch wires 310, some of the touch wires 310 may be located on the same layer, and some of the touch wires 310 may be distributed on a different layer. Of course, the touch wires 310 that transmit the same signal may also be distributed in different layers, which is not specifically limited in this disclosure.

[0054] In some embodiments of the present disclosure, the plurality of touch electrodes includes a plurality of first electrode groups 330 extending in the first direction Y and a plurality of second electrode groups 331 extending in the second direction X. The plurality of first electrode groups 330 may be sequentially arranged along the second direction X, and the plurality of second electrode groups 331 may be sequentially arranged along the first direction Y. The first electrode group 330 and the second electrode group 331 are insulated from each other. The first direction Y and the second direction X are substantially perpendicular. The first electrode group 330 may be a driving electrode group connected to the driving circuit, and the second electrode group 331 may be a detecting electrode group connected to the detecting circuit.Or, the first electrode group 330 is a detection electrode group connected to the detection circuit, and the second electrode group 331 is a drive electrode group connected to the drive circuit. Specifically, the first electrode group 330 and the second electrode group 331 can be connected to their respective drive circuits or detection circuits via the touch wires 310 located at the periphery of the display area 110. When the user's finger touches the touchable area of ​​the display panel, the mutual capacitance of the first electrode group 330 and the second electrode group 331, which are arranged in a mutually insulating and crossed manner at the touch point, changes.The drive circuit sequentially scans the drive electrode groups in the first electrode group 330 and the second electrode group 331, and simultaneously reads the signals of each detection electrode group in the first electrode group 330 and the second electrode group 331 during each scan of a detection electrode group. Through one round of scanning, the coordinates of the touch point can be determined, and the content response corresponding to the touch operation is performed based on the coordinates of the touch point.

[0055] In some embodiments, the plurality of touch wires 310 may include a plurality of first touch wires 311 and a plurality of second touch wires 312. The touch layer 300 includes a first touch layer 301 and a second touch layer 302 stacked one on top of the other. The second touch layer 302 is provided on the side of the first touch layer 301 remote from the base substrate 100. Furthermore, the touch layer 300 may include a first insulating layer 303 provided between the first touch layer 301 and the second touch layer 302. The first touch wires 311 may be distributed in the first touch layer 301, and the second touch wires 312 may be distributed in the second touch layer 302. Each touch wire 310 includes a first touch wire 311 and a second touch wire 312 connected in parallel.The orthographic projection of the plurality of touch wires 310 in the first non-display region on the base substrate 100 at least partially overlaps with the orthographic projection of the plurality of signal lines 210 on the base substrate 100. For at least a portion of the touch wires 310 in the first non-display region, the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extension direction of the touch wires 310. In this way, the coverage area of ​​the signal lines 210 by the touch wires 310 is increased while the resistance of the touch wires 310 is reduced.

[0056] As in Fig. 25 and Fig. 26, in this disclosure, the first center line O1 refers to the line connecting the center points of the line width of the first touch wires 311, and the second center line O2 is the line connecting the center points of the line width of the second touch wires 311.

[0057] As in Fig. 1, Fig. 2 and Fig. 5, is Fig. 2 is a schematic cross-sectional view of the non-display region 120 of the display panel in one embodiment. In the present disclosure, the light reflectivity of the touch layer 300 is lower than that of the signal line layer 200. The first center line O1 and the second center line O2 are arranged offset. Compared with the first center line O1 and the second center line O2 being arranged directly opposite each other, the arrangement of the present disclosure contributes to increasing the coverage area of ​​the signal lines 210 by the touch wires 310. In this way, the light reflection by the signal line 210 in this region can be reduced, preventing this region from reflecting the light and glaring when exposed to strong light, which would impair the display quality.In some embodiments of the present disclosure, the material of the touch layer 300 may be formed into a conductive layer containing titanium (Ti) and aluminum (Al) using a low-temperature process. Furthermore, the orthographic projection of the plurality of signal lines 210 located at least partially in the non-display area 120 on the base substrate 100 is within the orthographic projection of a combination of at least one first touch wire 311 and at least one second touch wire 312 on the base substrate 100.

[0058] The touch wires 310 can be located in different regions of the base substrate 100, and the touch wires 310 in different regions can be arranged in different ways. The touch layer 300 can also include a second insulating layer 304 and a protective layer 305. The second insulating layer 304 is provided between the signal line layer 200 and the first touch layer 301. The protective layer 305 is provided on a side of the second touch layer 302 remote from the base substrate 100.

[0059] Next, the covering of the signal line 210 by the touch wire 310 will be introduced in detail by showing the touch wires 310 at different positions.

[0060] As in Fig. 1, Fig. 2 and Fig. 5, in some embodiments of the present disclosure, the touch wires 310 are located at the periphery of the display area 110, for example, in the first straight area 121, the second straight area 122, and the first corner area 124. It should be noted here that the plurality of signal lines 210 located at least partially in the non-display area 120 refers to at least a portion of the signal lines 210 of the plurality of signal lines 210 in the non-display area 120, such as the signal lines 210 in the first straight area 121 or the signal lines 210 in the first corner area 124.For example, the first touch wire 311 and the second touch wire 312 located in the first straight region 121 or the first corner region 124 and belonging to the same touch wire 310 each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extending direction of the touch wires 310, as shown in FIG. Fig. 5 to Fig. 15 shown.

[0061] Here, Fig. 6 an arrangement diagram of the signal lines 210 in area A in Fig. 5, that is, an arrangement diagram of the signal lines 210 in the first straight region 121. In the figure, the signal lines 210 are distributed in different metal layers, and different filling patterns represent different metal layers, and the same filling pattern represents the same metal layer. Fig. Fig. 7 is an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the area A in Fig. 5, ie, the arrangement diagram of the first touch wire 311 and the second touch wire 312 in the first straight portion 121. Fig. 8 is a stack diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 in the area A in Fig. 5, ie the stacking diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 in the first straight region 121.

[0062] Fig. 9 is an arrangement diagram of the signal lines 210 in the area B in Fig. 5, that is, an arrangement diagram of the signal lines 210 at the junction between the first straight region 121 and the first corner region 124. In this figure, the signal lines 210 are distributed in different metal layers, and different filling patterns represent different metal layers, and the same filling pattern represents the same metal layer. Fig. 10 is an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the area B in Fig. 5, that is, an arrangement diagram of the first touch wire 311 and the second touch wire 312 at the junction between the first straight portion 121 and the first corner portion 124. Fig. 11 is a stack diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 in the area B in Fig. 5, ie the stacking diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 at the junction between the first straight portion 121 and the first corner portion 124.

[0063] Fig. 12 is an arrangement diagram of the signal lines 210 in the area C in Fig. 5, that is, an arrangement diagram of the signal lines 210 in the first corner region 124. In this figure, the signal lines 210 are distributed in different metal layers, and different filling patterns represent different metal layers, and the same filling pattern represents the same metal layer. Fig. 13 is an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the area C in Fig. 5, ie, an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the first corner region 124. Fig. 14 is a stack diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 in the area C in Fig. 5, ie the stacking diagram of the signal line 210, the first touch wire 311 and the second touch wire 312 in the first corner region 124.

[0064] Fig. 15 is an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the area D in Fig. 5, ie an arrangement diagram of the first touch wire 311 and the second touch wire 312 at the connection between the first corner portion 124 and the second straight portion 122. The dashed line in Fig. 15 is the dividing line between the first corner region 124 and the second straight region 122. Since the present disclosure does not specifically limit the arrangement of the signal lines 210, the arrangement diagram of the signal lines 210 in the region D is shown in Fig. 5 is not shown. For details, reference may be made to other areas, such as the arrangement diagram of the signal lines 210 in area A.

[0065] Out of Fig. 5 to Fig. 15, it can be seen that the first touch wire 311 and the second touch wire 312 located in the first straight region 121 or the first corner region 124 and belonging to the same touch wire 310 each have the first center line O1 and the second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extending direction of the touch wires 310, and the combination of the first touch wire 311 and the second touch wire 312 covers most of the signal lines 210 in this region.

[0066] The first touch wire 311 and the second touch wire 312, which are located in the second straight region 122 and belong to the same touch wire 310, correspond to the first center line O1 and the second center line O2. The first center line O1 and the second center line O2 can be arranged offset or not offset in a direction perpendicular to the extension direction of the touch wires 310. That is, the combination of the first touch wire 311 and the second touch wire 312, which are located in the second straight region 122, can cover the signal lines 210 in this region over a large area or cover less than the first straight region 121 and the first corner region 124.

[0067] In practical applications, the number of signal lines 210 in the second straight area 122 is usually smaller than the number of signal lines 210 in the first straight area 121 and the first corner area 124. Even if the signal lines 210 in the second straight area 122 are not covered over a large area, this area is not likely to be glaring under strong light. As shown in Fig. 5 and Fig. 16 is shown Fig. 16 is an arrangement diagram of the first touch wire 311 and the second touch wire 312 in the area E in Fig. 5. In this figure, the first touch wire 311 and the second touch wire 312 are substantially overlapped, and there is a gap between adjacent touch wires 310. In Fig. 16, the second touch wire 312 is cut off for clarity. Of course, preferably, the first touch wire 311 and the second touch wire 312, which are located in the second straight section 122 and belong to the same touch wire 310, each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extension direction of the touch wires 310. In this embodiment, the arrangement of the first touch wire 211 and the second touch wire 212 may refer to the first straight section 121.

[0068] Furthermore, other regions on the periphery of the display area 110 may also be similar. For example, the first touch wire 311 and the second touch wire 312, which are located in the third straight region 123 or in the second corner region 125 and belong to the same touch wire 310, each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extension direction of the touch wires 310. Here, the arrangement of the first touch wire 211 and the second touch wire 212 in the third straight region 123 may refer to the first straight region 121, and the arrangement of the first touch wire 211 and the second touch wire 212 in the second corner region 125 may refer to the first corner region 124. For example, Fig. 18 is a schematic diagram of the arrangement of the first touch wires 311 and the second touch wires 312 in the region G in Fig. 5, as in Fig. 18. The arrangement in this figure is similar to that in the first corner area 124.

[0069] As in Fig. 7, Fig. 10 and Fig. As shown in Fig. 13, the orthographic projections of the first touch wires 311 located in the first straight region 121 or the first corner region 124 on the base substrate 100 and the orthographic projections of the second touch wire lines 312 located in the first straight region 121 or the first corner region 124 are alternately arranged on the base substrate 100. That is, the first touch wires 311 and the second touch wires 312 are arranged in the first straight region 121 and the first corner region 124 as follows: a first touch wire 311, a second touch wire 312, a first touch wire 311, a second touch wire 312, ..., and so on. The distance between two adjacent first touch wires 311 is not less than 3 µm and the distance between two adjacent second touch wires 312 is not less than 3 µm in order to avoid mutual interference of transmission signals.Of course, the orthographic projections of the first touch wires 311 and the second touch wires 312 located in the third straight region 123 or the second corner region 125 may also be arranged alternately on the base substrate 100.

[0070] As in Fig. 2, Fig. 5, Fig. 7 and Fig. 27, in such embodiments, orthographic projections of the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, at least partially overlap on the base substrate 100. The first touch wires 311 and the second touch wires 312, whose orthographic projections on the base substrate 100 overlap, are electrically connected through the first insulating layer 303 via vias in a one-to-one correspondence to transmit the same signal. For example, the first touch wire 311 and the second touch wire 312 are connected accordingly to form a first signal line that can be connected to the first electrode group 330 for transmitting a drive signal.In another example, the first touch wire 311 and the second touch wire 312 are connected to form a second signal line that can be connected to the second electrode group 331 to transmit a detection signal. Of course, the first signal line can also be connected to the second electrode group 331 to transmit the detection signal, and the second signal line can also be connected to the first electrode group 330 to transmit the drive signal, but this is not limited in the present disclosure.

[0071] In such embodiments, the first touch wire 311 and the second touch wire 312 are connected to each other to transmit the same signal. This solution contributes to reducing resistance and stress. To improve the stability of the connection between the first touch wire 311 and the second touch wire 312, it is further provided that a width of an intersection area of ​​the orthographic projection of the first touch wire 311 and the orthographic projection of the second touch wire 312, which belong to the same touch wire 310, on the base substrate 100, in the line width direction is not less than 1.5 µm, so that the first touch wire 311 and the second touch wire 312 are connected to each other via vias.

[0072] As in Fig. 1, Fig. 5 to Fig. 16, in some embodiments, the first touch wire 311 and the second touch wire 312 each include a first straight portion 313, a first connecting portion 314, a first curved portion 315, a second connecting portion 316, and a second straight portion 317, which are connected sequentially. The first straight portion 313 is located in the first straight region 121. The first connecting portion 314, the first curved portion 315, and the second connecting portion 316 are all located in the first corner region 124. The second straight portion 317 is located in the second straight region 122. As shown in Fig. As shown in Figure 15, an intersection area of ​​the orthographic projection of the second connection portion 316 of the first touch wire 311 and the orthographic projection of the second connection portion 316 of the correspondingly connected second touch wire 312 on the base substrate 100 gradually decreases along the direction from the second straight portion 122 to the first corner portion 124. That is, along the direction from the second straight portion 122 to the first corner portion 124, the second connection portion 316 of the first touch wire 311 and the second connection portion 316 of the second touch wire 312 are gradually offset. The stacking diagram of the first straight portion 313 of the first touch wire 311 and the second touch wire 312 can be Fig. 7. The stack diagram of the first connecting portion 314 of the first touch wire 311 and the second touch wire 312 can be Fig. 10. The stack diagram of the first curved portion 315 of the first touch wire 311 and the second touch wire 312 can be Fig. 13. The stack diagram of the second straight section 317 of the first touch wire 311 and the second touch wire 312 can be Fig. 16.

[0073] In this disclosure, the first touch wire 311 and the correspondingly connected second touch wire 312 refer to the first touch wire 311 and the second touch wire 312 that transmit the same signal.

[0074] Furthermore, the line width difference between the first touch wire 311 and the second touch wire 312 does not exceed 0.1 μm. The widths of the first touch wire 311 and the second touch wire 312 are approximately the same. The ratio of an intersection area of ​​an orthographic projection of the second straight portion 317 of the first touch wire 311 and an orthographic projection of the second straight portion 317 of the second touch wire 312 on the base substrate 100 to an area of ​​the second straight portion 317 of the first touch wire 311 or to an area of ​​the second straight portion 317 of the second touch wire 312 is not less than 95%. That is, the second straight portion 317 of the first touch wire 311 and the second straight portion 317 of the second touch wire 312 substantially overlap.

[0075] In some embodiments, the line width of the first touch wire 311 and the line width of the second touch wire 312 are not less than 4.2 µm, wherein, as shown in Fig. 16, the second straight section 317 of the first touch wire 311 almost completely overlaps with the second straight section 317 of the second touch wire 312, and the overlap width is the width of the touch wire 310. As shown in Fig. As shown in FIG. 15, the intersection width of the second straight portion 316 of the first touch wire 311 and the second straight portion 316 of the second touch wire 312 gradually decreases along the direction from the second straight portion 122 to the first corner portion 124, and the minimum intersection width is not less than 1.5 μm. The intersection width of the first straight portion 313, the first connecting portion 314, and the first curved portion 315 of the first touch wire 311, and the first straight portion 313, the first connecting portion 314, and the first curved portion 315 of the second touch wire 312 is not less than 1.5 μm.And the first straight portion 313, the first connecting portion 314, the first curved portion 315 of the first touch wire 311 do not completely overlap with the first straight portion 313, the first connecting portion 314, the first curved portion 315 of the second touch wire 312.

[0076] It is noted here that this design solution is also applicable to the first touch wire 311 and the second touch wire 312 located in the second corner region 125. For example, as shown in Fig. 5, Fig. 17 to Fig. 20, the first touch wire 311 and the second touch wire 312 also include a third connecting portion 318, a second curved portion 319, a fourth connecting portion 320, and a third straight portion 321, wherein the third connecting portion 318, the second curved portion 319, and the fourth connecting portion 320 are located in the second corner region 125, and the third straight portion 321 is located in the third straight region 123. As shown in Fig. As shown in FIG. 17, an intersection area of ​​the orthographic projection of the third connection portion 318 of the first touch wire 311 and the orthographic projection of the third connection portion 318 of the correspondingly connected second touch wire 312 on the base substrate 100 gradually decreases along the direction from the second straight portion 122 to the second corner portion 125. That is, the intersection width of the third connection portion 318 of the first touch wire 311 and the third connection portion 318 of the second touch wire 312 gradually decreases along the direction from the second straight portion 122 to the second corner portion 125, and the minimum intersection width is not less than 1.5 μm.

[0077] For the third straight portion 321 of the first touch wire 311 and the third straight portion 321 of the second touch wire 312, the two may substantially completely or partially overlap, and the width at the intersection is not less than 1.5 μm. When the third straight portion 321 of the first touch wire 311 and the third straight portion 321 of the second touch wire 312 substantially completely overlap, the ratio of an overlap area to an area of ​​the third straight portion 321 of the first touch wire 311 or to an area of ​​the third straight portion 321 of the second touch wire 312 is not less than 95% (as in Fig. 20). Here, an intersection area of ​​the orthographic projection of the fourth connection portion 320 of the first touch wire 311 and the orthographic projection of the fourth connection portion 320 of the correspondingly connected second touch wire 312 on the base substrate 100 gradually decreases along the direction from the third straight portion 123 to the second corner portion 125, as shown in Fig. 19 shown.

[0078] As in Fig. 2 and Fig. 5, in other embodiments of the present disclosure, the touch wire 310 is located in the second non-display region 126. In such embodiments, an opening region 130 divides at least one of the first electrode groups 330 or at least one of the second electrode groups 331 into two sub-electrode groups located on both sides of the opening region 130. The touch wires 310 connect two sub-electrode groups of the first electrode group 330, or the touch wires 310 connect two sub-electrode groups of the second electrode group 331, wherein the orthographic projections of the plurality of signal lines 210 on the base substrate 100 at least partially overlap with the orthographic projections of the plurality of touch wires 210 on the base substrate 100 in the second non-display region.

[0079] In such embodiments, the first electrode group 330 comprises a plurality of first electrodes 332. Two adjacent first electrodes 332 located in the display area 110 are connected via a first bridge line 334. The second electrode group 331 comprises a plurality of second electrodes 333. Two adjacent second electrodes 333 located in the display area 110 are connected via a second bridge line 335. In particular, the first electrode 332, the first bridge line 334, the second electrode 333, and the second bridge line 335 may be distributed in different touch layers 300. For example, in one embodiment, the second bridge line 335 is distributed in the first touch layer 301, and the first electrode 332, the first bridge line 334, and the second electrode 333 are distributed in the second touch layer 302.In another embodiment, the first electrode 332, the first bridge line 334 and the second electrode 333 are distributed in the first touch layer 301 and the second bridge line is distributed in the second touch layer 302.

[0080] In the opening region 130, the separated first electrode group 330 and second electrode group 331 may be connected via the first touch wire 311 and / or the second touch wire 312.

[0081] As in Fig. 2 and Fig. 21, in one embodiment, the opening region 130 divides a first electrode group 330 and a second electrode group 331 into two sub-electrode groups located on either side of the opening region 130. Two sub-electrode groups of the first electrode group 330 are connected via the first touch wire 311 or the second touch wire 312; similarly, two sub-electrode groups of the second electrode group 331 are connected via the second touch wire 312 or the first touch wire 311. The orthographic projections of the plurality of signal lines 210 located in the second non-display region 126 on the base substrate 100 are substantially within the orthographic projection of a combination of the first touch wire 311 and the second touch wire 312 on the base substrate 100.In this embodiment, the size of the opening portion 130 is generally smaller than the size of a first electrode 332 or a second electrode 333. Therefore, the opening portion 130 separates a first electrode group 330 and a second electrode group 331. At the same time, in this embodiment, the width of the first touch wire 311 and the second touch wire 312 is relatively large in order to cover the signal lines 210 in the second non-display region 126 over a large area. For example, the first touch wire 311 is an entire conductive ring structure with a larger width, or the second touch wire 312 is an entire conductive ring structure with a larger width to cover the signal lines 210 in the second non-display region 126.

[0082] As in Fig. 2, Fig. 22 and Fig. 23 is shown Fig. 23 is a schematic diagram of the arrangement of the first touch wire 311 and the second touch wire 312 in the area I in Fig. 22. In another embodiment, the opening portion 130 divides the plurality of first electrode groups 330 and the plurality of second electrode groups 331 into two sub-electrode groups located on both sides of the opening portion 130. That is, in this embodiment, the opening portion 130 is larger than the first electrode 332 and the second electrode 333, and can therefore separate the plurality of first electrode groups 330 and the plurality of second electrode groups 331. The orthographic projections of the first touch wires 311 and the second touch wires 312 on the base substrate 100 at least partially overlap, and the first touch wires 311 and the second touch wires 312 whose orthographic projections overlap on the base substrate 100 are connected to each other in a one-to-one correspondence. As shown in Fig. As shown in Fig. 24, a part of the correspondingly connected first touch wires 311 and second touch wires 312 are combined to form a first connection line 336, and a part of the correspondingly connected first touch wires 311 and second touch wires 312 are combined to form a second connection line 337. The first connection line 336 connects two sub-electrode groups of the first electrode group 330, and the second connection line 337 connects two sub-electrode groups of the second electrode group 331, and the first connection line 336 and the second connection line 337 are insulated. Specifically, the region where the first connection line 336 and the second connection line 337 intersect is formed in a single layer.For example, at the point where the first connecting line 336 and the second connecting line 337 cross, the first connecting line 336 in this area includes only the second touch wire 312, and the corresponding second connecting line 337 in this area includes only the first touch wire 312, thereby achieving the insulation arrangement of the first connecting line 336 and the second connecting line 337.

[0083] In such embodiments and as in Fig. 23, in at least a portion of the touch wires 310 in the second non-display region 126, the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extension direction of the touch wires 310. Furthermore, an orthographic projection of the first touch wire 311 and an orthographic projection of the second touch wire 312 of at least a portion of the touch wires 310 located in the second non-display region 126 are alternately arranged on the base substrate 100.That is, the first touch wires 311 and the second touch wires 312 are arranged in the second non-display area 126 as follows: a first touch wire 311, a second touch wire 312, a first touch wire 311, a second touch wire 312, ..., and so on. The distance between two adjacent first touch wires 311 is not less than 3 µm, and the distance between two adjacent second touch wires 312 is not less than 3 µm to avoid mutual interference of transmission signals. Furthermore, a width of an intersection area of ​​the orthographic projection of the first touch wire 311 and the orthographic projection of the second touch wire 312 on the base substrate 100 in the line width direction is not less than 1.5 μm, so that the first touch wire 311 and the second touch wire 312 are connected to each other via vias.

[0084] As in Fig. 1, Fig. 2, Fig. 5 and Fig. As shown in Figure 28, in some embodiments, the display panel provided by the present disclosure includes a base substrate 100, a signal line layer 200, and a touch layer 300. The base substrate 100 includes a display region 110 and a non-display region 120. The signal line layer 200 is provided on one side of the substrate 100 and includes a plurality of signal lines 210, and the signal lines 210 are at least partially disposed in the non-display region 120. The touch layer 300 is provided on a side of the signal line layer 200 remote from the base substrate 100. The touch layer 300 includes a plurality of touch wires 310. The touch wires 310 are at least partially located in the non-display area 120. The non-display area 120 includes a first non-display area located at the periphery of the display area 110.The orthographic projections of the plurality of touch wires 310 in the first non-display region on the base substrate 100 at least partially overlap with the orthographic projections of the plurality of signal lines 210 on the base substrate 100. In the first non-display region, a first gap L1 is present between orthographic projections of two adjacent touch wires 310 on the base substrate 100, and in the non-display region 120 except for the first non-display region, a second gap L2 is present between orthographic projections of two adjacent touch wires 310 on the base substrate 100, wherein the first gap L1 is smaller than the second gap L2.

[0085] In such embodiments, the structural configurations of the display region 110, the non-display region 120, the first non-display region, etc., may be related to the above-mentioned embodiments and will not be described in detail here. For example, the first non-display region may include a first straight region 121, a first corner region 124, a third straight region 123, and a second corner region 125.

[0086] In some embodiments, the first gap L1 is 0.1 to 0.3 times as large as the second gap L2.

[0087] In the first non-display region, the minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires 310 on the base substrate 100 is the first gap L1. The minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires 310 on the base substrate 100 in the non-display region 120 excluding the first non-display region is the second gap L2.

[0088] As in Fig. 28, in the first straight region 121, there is a first gap L1 between the orthographic projections of two adjacent touch wires 310 on the base substrate 100, and there is a second gap L2 between the orthographic projections of two adjacent touch wires 310 on the base substrate 100, and the first gap L1 is smaller than the second gap L2.

[0089] The touch layer 300 includes a first touch layer 301 and a second touch layer 302 stacked one above the other, and a first insulating layer 303 provided between the first touch layer 301 and the second touch layer 302. Each of the touch wires 310 includes the first touch wire 311 and the second touch wire 312 connected in parallel. The first touch wire 311 is distributed on the first touch layer 301, and the second touch wire 312 is distributed on the second touch layer 302. For at least some of the touch wires 310, the orthographic projections of the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, at least partially overlap on the base substrate 100.

[0090] A specific intersection area between the first touch wire 311 and the second touch wire 312 in the first non-display region is smaller than a specific intersection area between the first touch wire 311 and the second touch wire 312 in the non-display region 120 except for the first non-display region.

[0091] In this disclosure, the specific intersection area refers to the intersection area of ​​the first touch wire 311 per unit area and the second touch wire 312 per unit area.

[0092] In a specific embodiment, the first touch wire 311 includes a first edge and a second edge arranged opposite each other, and the second touch wire 312 includes a third edge and a fourth edge arranged opposite each other. In the first non-display region, an orthographic projection of the third edge on the base substrate 100 lies between an orthographic projection of the first edge on the base substrate 100 and an orthographic projection of the second edge on the base substrate 100. The orthographic projection of the second edge on the base substrate 100 lies between the orthographic projection of the third edge on the base substrate 100 and an orthographic projection of the fourth edge on the base substrate 100.

[0093] As in Fig. 1, Fig. 2, Fig. 5, Fig. 7, Fig. 25 and Fig. 26, the present disclosure also provides a method of manufacturing a display panel, the method comprising: - Step S100: Providing a base substrate 100 comprising a display area 110 and a non-display area 120, - Step S200: Forming a signal line layer 200 on one side of the base substrate 100, which comprises a plurality of signal lines 210, wherein the signal lines 210 are at least partially located in the non-display area 120, - Step S300: Forming a touch layer 300 on a side of the signal line layer 200 remote from the base substrate 100, wherein the touch layer 300 includes a plurality of touch wires 310, and the touch layer 300 includes a first touch layer 301 and a second touch layer 302 stacked on top of each other, and a first insulating layer 303 provided between the first touch layer 301 and the second touch layer 302;wherein the touch wires 310 are at least partially located in the non-display area 120, and the plurality of touch wires 310 comprises a plurality of first touch wires 311 and a plurality of second touch wires 312 arranged stacked one on top of the other, wherein the first touch wires 311 are distributed in the first touch layer 301 and the second touch wires 312 are distributed in the second touch layer 302, and wherein each of the touch wires 310 comprises the first touch wire 311 and the second touch wire 312 connected in parallel; wherein the non-display region 120 includes a first non-display region located at the periphery of the display region 110, wherein the orthographic projections of the plurality of touch wires 310 in the non-display region on the base substrate 100 at least partially overlap with the orthographic projections of the plurality of signal lines 210 on the base substrate 100. For at least a portion of the touch wires 310 in the first non-display region, the first touch wire 311 and the second touch wire 312, which belong to the same touch wire 310, each have a first center line O1 and a second center line O2, wherein the first center line O1 and the second center line O2 are offset in a direction perpendicular to the extension direction of the touch wires 310.

[0094] In step S100, the non-display area 120 may include multiple areas. In some embodiments of the present disclosure, the non-display area 120 is located at the periphery of the display area 110. The non-display area 120 includes a first non-display area located at the periphery of the display area 110. The non-display area 120 also includes a second straight area 122 located on at least one side of the display area 110 in the second direction X. The first non-display area includes the first straight area 121 and the first corner area 124. Here, the first straight area 121 is located on one side of the display area 110 in the first direction Y. The first corner area 124 connects the first straight area 121 and the second straight area 122.The non-display region 120 also includes a binding region 127 located on a side of the first straight region 121 remote from the display region 110. Furthermore, the first non-display region also includes a third straight region 123 and a second corner region 125. The third straight region 123 is located on the side of the display region 110 remote from the first straight region 121. The second corner region 125 connects the straight region 122 and the third straight region 123.

[0095] In some embodiments of the present disclosure, the base substrate 100 further includes an opening region 130 located in the display region 110. The display panel further includes a second non-display region 126 located between the opening region 130 and the display region 110. The non-display region 120 also includes the second non-display region 126.

[0096] In step S200, the signal lines 210 are arranged relatively densely in the formed signal line layer 200, and the material of the signal lines 210 includes a metal material with strong light reflectivity, such as molybdenum (Mu) metal. The formed signal line layer 200 may consist of a plurality of layers, for example, a first metal layer and a second metal layer arranged in a stacked manner. The signal lines 210 in the first metal layer and the signal lines 210 in the second metal layer are arranged relatively densely.

[0097] In step S300, the formed touch layer 300 may include two layers, namely a first touch layer 301 and a second touch layer 302. The first touch layer 301 and the second touch layer 302 have light reflectivity lower than that of the signal line layer 200. Specifically, the light reflectivity of the touch layer 300 can be controlled by adjusting the material and the formation process of the touch layer 300.

[0098] In one embodiment, the material of the first touch layer 301 and the second touch layer 302 may include titanium (Ti) and aluminum (Al), and both the first touch layer 301 and the second touch layer 302 may be a multilayer stacked structure. For example, the structure of the first touch layer 301 and the second touch layer 302 is titanium (Ti)-aluminum (Al)-titanium (Ti), that is, it consists of a titanium (Ti) metal layer, an aluminum (Al) metal layer, and a titanium (Ti) metal layer laminated together. Furthermore, the formation temperature of the first touch layer 301 and the second touch layer 302 is not higher than 85°C, so that the touch layer 300 with lower light reflectivity can be formed.Specifically, a titanium metal layer may be formed by vapor deposition on a side of the signal line layer 200 remote from the base substrate, and then an aluminum metal layer may be vapor deposited on a side of the titanium metal layer remote from the base substrate, and then a titanium metal layer may be formed again on a side of the aluminum metal layer remote from the base substrate. The temperature during the entire process does not exceed 85°C.

[0099] The plurality of touch wires 310 may include a plurality of first touch wires 311 and a plurality of second touch wires 312. The first touch wires 311 may be distributed in the first touch layer 301, and the second touch wires 312 may be distributed in the second touch layer 302. The touch wires 310 may be located in different regions of the base substrate 100, and the touch wires 310 in different regions may be arranged in different ways. In particular, different regions may be structured differently to form the touch wires 310 with a specific pattern for that region.For example, a first touch material layer may be formed on a side of the signal line layer 200 remote from the base substrate 100, and then this touch material layer may be patterned to form the first touch layer 301 including the first touch wires 311. Then, a second touch material layer may be formed on a side of the first touch layer 300 remote from the base substrate 100, and subsequently, this touch material layer may be patterned to form a second touch layer 302 including the second touch wires 312. The patterns of the first touch wires 301 and the second touch wires 302 formed in different regions may be different. The specific pattern may be changed according to the arrangement of the signal lines 210 in that region. For example, as shown in FIG. Fig. 5 , Fig. 7, Fig. 10 and Fig.13, the patterns of the first touch wire 301 and the second touch wire 302 are formed such that the orthographic projections of the plurality of signal lines 210 located in the first straight region 121 or the first corner region 124 on the base substrate 100 are within the orthographic projection of a combination of the plurality of first touch wires 311 and the plurality of second touch wires 312 on the base substrate 100. The orthographic projections of the formed first touch wires 311 and second touch wires 312 of at least a portion of the touch wires 310 on the base substrate 100 are arranged alternately. That is, in the first straight region 121 and the first corner region 124, the first touch wires 311 and the second touch wires 312 are arranged as follows: a first touch wire 311, a second touch wire 312, a first touch wire 311, a second touch wire 312, ..., and so forth.

[0100] In the method for manufacturing a display panel provided by the present disclosure, the light reflectivity of the touch layer 300 of the display panel formed by the manufacturing method is lower than the light reflectivity of the signal line layer 200. The plurality of touch wires 310 located at least partially in the non-display region 120 can cover the plurality of signal lines 210 in this region, thereby reducing the light reflection by the signal lines 210 in this region and preventing this region from reflecting and glaring light when exposed to strong light, which would impair the display quality.

[0101] Furthermore, in the formation of the touch layer 300, the touch layer 300 is a laminated conductive layer comprising a titanium metal layer, an aluminum metal layer, and a titanium metal layer, and the formation process is carried out at a maximum of 85°C. Under this condition, the touch layer 300 can be formed with lower light reflectivity, which contributes to better reducing the light reflectivity of the signal line layer 210.

[0102] The present disclosure also provides a display device including a display panel. The display panel may be a display panel according to any one of the above-mentioned embodiments. Regarding its specific structure and advantageous effects, reference may be made to the above-mentioned embodiments of the display panel, which will not be described again here. The display device of the present disclosure may be an electronic device such as a mobile phone, a tablet computer, or a television, which are not detailed here.

[0103] It should be noted that although the various steps of the method in the present disclosure are described in a particular order in the drawings, this does not require or imply that these steps must be performed in this particular order or that all of the steps shown must be performed to achieve a desired result. Additionally or alternatively, it is possible to omit certain steps, combine a plurality of steps for execution into a single step, and / or divide a step for execution into a plurality of steps, etc. All of this is to be considered part of this disclosure.

[0104] It should be understood that the present disclosure is not limited in its application to the detailed structure and arrangement of the components set forth in this description. The present disclosure is capable of other embodiments and of being implemented and carried out in various ways. The above variations and modifications are intended to be within the scope of the present disclosure. It should be understood that the disclosure disclosed and defined in this description extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All such different combinations represent alternative aspects of the present disclosure. The embodiments of the present description illustrate the best mode known for carrying out the present disclosure and will enable those skilled in the art to utilize the disclosure.

Claims

[1] Display panel, the display panel comprising: - a base substrate comprising a display area and a non-display area, - a signal line layer provided on one side of the base substrate and comprising a plurality of signal lines, the signal lines being at least partially located in the non-display area, - a touch layer provided on a side of the signal line layer remote from the base substrate, wherein the touch layer comprises a plurality of touch wires, and the touch layer comprises a first touch layer and a second touch layer stacked one above the other, and a first insulating layer provided between the first touch layer and the second touch layer, wherein the touch wires are located at least partially in the non-display region, wherein the plurality of touch wires comprises a plurality of first touch wires and a plurality of second touch wires stacked one above the other, wherein the first touch wires are distributed in the first touch layer and the second touch wires are distributed in the second touch layer, and wherein each of the touch wires comprises the first touch wire and the second touch wire,which are connected in parallel;, wherein the non-display region comprises a first non-display region located at the periphery of the display region, wherein the orthographic projections of the plurality of touch wires in the first non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate; wherein, in at least a part of the touch wires in the first non-display region, the first touch wire and the second touch wire belonging to the same touch wire each have a first center line and a second center line, the first center line and the second center line being offset in a direction perpendicular to the extending direction of the touch wires. [2] The display panel of claim 1, wherein orthographic projections of the plurality of signal lines located at least partially in the non-display area on the base substrate are within the orthographic projection of a combination of at least one of the first touch wires and at least one of the second touch wires on the base substrate. [3] The display panel according to claim 1, wherein orthographic projections of the first touch wire and the second touch wire belonging to the same touch wire on the base substrate at least partially overlap, and wherein the first touch wires and the second touch wires whose orthographic projections on the base substrate overlap are electrically connected through the first insulating layer via vias in a one-to-one correspondence. [4] The display panel according to claim 3, wherein a width of an intersection area of ​​the orthographic projection of the first touch wire and the orthographic projection of the second touch wire, which belong to the same touch wire, on the base substrate in the line width direction is not less than 1.5 µm. [5] The display panel according to claim 3, wherein the non-display area further comprises a second straight area located on one side of the display area in a second direction; wherein the first non-display area comprises: - a first straight area located on one side of the display area in a first direction, - a first corner region connecting the first straight region and the second straight region; wherein an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the first straight region or the first corner region are alternately arranged on the base substrate. [6] The display panel according to claim 5, wherein the first non-display area further comprises: - a third straight area located on a side of the display area remote from the first straight area, - a second corner region connecting the second straight region and the third straight region; wherein an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the third straight region or the second corner region are alternately arranged on the base substrate. [7] The display panel according to claim 5, wherein the first touch wire and the second touch wire each include a first straight portion, a first connecting portion, a first curved portion, a second connecting portion, and a second straight portion connected sequentially, the first straight portion being located in the first straight region, the first connecting portion, the first curved portion, and the second connecting portion all being located in the first corner region, and the second straight portion being located in the second straight region; wherein an intersection area of ​​the orthographic projection of the second connecting portion of the first touch wire and the orthographic projection of the second connecting portion of the correspondingly connected second touch wire on the base substrate gradually decreases along the direction from the second straight region to the first corner region. [8] The display panel according to claim 6, wherein the first touch wire and the second touch wire further each comprise a third connection portion, a second curved portion, a fourth connection portion, and a third straight portion, wherein the third connection portion, the second curved portion, and the fourth connection portion are all located in the second corner region, and the third straight portion is located in the third straight region; wherein an intersection area of ​​the orthographic projection of the third connection portion of the first touch wire and the orthographic projection of the correspondingly connected third connection portion of the second touch wire on the base substrate gradually decreases along the direction from the second straight region to the second corner region. [9] The display panel according to claim 7, wherein the ratio of an intersection area of ​​an orthographic projection of the second straight portion of the first touch wire and an orthographic projection of the second straight portion of the second touch wire on the base substrate to an area of ​​the second straight portion of the first touch wire or to an area of ​​the second straight portion of the second touch wire is not less than 95%. [10] The display panel according to claim 1, wherein the substrate substrate further comprises an opening region located in the display region, and the non-display region further comprises a second non-display region between the opening region and the display region; wherein the touch layer further comprises a plurality of touch electrodes, the plurality of touch electrodes comprising a plurality of first electrode groups extending along a first direction and a plurality of second electrode groups extending along a second direction, the first electrode groups and the second electrode groups being insulated from each other; wherein the opening region divides at least one of the first electrode groups and at least one of the second electrode groups into two sub-electrode groups located on both sides of the opening region; wherein the touch wires connect two sub-electrode groups of the first electrode group or the touch wires connect two sub-electrode groups of the second electrode group; wherein the orthographic projections of the plurality of touch wires in the second non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate; wherein, in at least a part of the touch wires in the second non-display region, the first touch wire and the second touch wire belonging to the same touch wire each have a first center line and a second center line, the first center line and the second center line being offset in a direction perpendicular to the extension direction of the touch wires [11] The display panel according to claim 10, wherein an orthographic projection of the first touch wire and an orthographic projection of the second touch wire of at least a part of the touch wires located in the second non-display region are alternately arranged on the base substrate. [12] The display panel according to claim 1, wherein a line width of the first touch wire and a line width of the second touch wire are not less than 4.2 µm, a distance between two adjacent first touch wires is not less than 3 µm, and a distance between two adjacent second touch wires is not less than 3 µm. [13] The display panel according to claim 1, wherein the signal line is a data signal line. [14] Display panel, the display panel comprising: - a base substrate comprising a display area and a non-display area, - a signal line layer provided on one side of the base substrate and comprising a plurality of signal lines, the signal lines being at least partially located in the non-display area, - a touch layer provided on a side of the signal line layer remote from the base substrate, the touch layer comprising a plurality of touch wires located at least partially in the non-display region; the non-display region comprising a first non-display region located at the periphery of the display region, the orthographic projections of the plurality of touch wires in the first non-display region on the base substrate at least partially overlapping the orthographic projections of the plurality of signal lines on the base substrate;wherein in the first non-display region, a first gap is present between orthographic projections of two adjacent touch wires on the base substrate, and in the non-display region except for the first non-display region, a second gap is present between orthographic projections of two adjacent touch wires on the base substrate, the first gap being smaller than the second gap; [15] The display panel according to claim 14, wherein the touch layer comprises a first touch layer and a second touch layer stacked on top of each other, and a first insulating layer provided between the first touch layer and the second touch layer; wherein each of the plurality of touch wires comprises a first touch wire and a second touch wire connected in parallel; wherein the first touch wire is distributed on the first touch layer and the second touch wire is distributed on the second touch layer; wherein, for at least a part of the touch wires, the orthographic projections of the first touch wire and the second touch wire belonging to the same touch wire at least partially overlap on the base substrate;wherein a specific intersection area between the first touch wire and the second touch wire in the first non-display region is smaller than a specific intersection area between the first touch wire and the second touch wire in the non-display region except for the first non-display region; [16] The display panel according to claim 15, wherein the first touch wire comprises a first edge and a second edge arranged opposite to each other, and the second touch wire comprises a third edge and a fourth edge arranged opposite to each other; wherein, in the first non-display region, an orthographic projection of the third edge on the base substrate is located between an orthographic projection of the first edge on the base substrate and an orthographic projection of the second edge on the base substrate, and the orthographic projection of the second edge on the base substrate is located between the orthographic projection of the third edge on the base substrate and an orthographic projection of the fourth edge on the base substrate. [17] The display panel according to claim 16, wherein in the first non-display region, the minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires on the base substrate is the first gap; wherein in the non-display region except the first non-display region, the minimum distance between the orthographic projection of the first edge and the orthographic projection of the fourth edge of the two adjacent touch wires on the base substrate is the second gap. [18] A display panel according to claim 14, wherein the first gap is 0.1 to 0.3 times as large as the second gap. [19] A method of manufacturing a display panel, the method comprising: - Providing a base substrate comprising a display area and a non-display area, - forming a signal line layer on one side of the base substrate, which comprises a plurality of signal lines, wherein the signal lines are at least partially located in the non-display area, - Forming a touch layer on a side of the signal line layer remote from the base substrate, wherein the touch layer comprises a plurality of touch wires, and the touch layer comprises a first touch layer and a second touch layer stacked one above the other, and a first insulating layer provided between the first touch layer and the second touch layer, wherein the touch wires are located at least partially in the non-display region, and the plurality of touch wires comprises a plurality of first touch wires and a plurality of second touch wires stacked one above the other, wherein the first touch wires are distributed in the first touch layer and the second touch wires are distributed in the second touch layer, and wherein each of the touch wires comprises the first touch wire and the second touch wire,which are connected in parallel; wherein the non-display region comprises a first non-display region located at the periphery of the display region, wherein the orthographic projections of the plurality of touch wires in the non-display region on the base substrate at least partially overlap with the orthographic projections of the plurality of signal lines on the base substrate; wherein, for at least a portion of the touch wires in the first non-display region, the first touch wire and the second touch wire belonging to the same touch wire each have a first center line and a second center line, wherein the first center line and the second center line are offset in a direction perpendicular to the extension direction of the touch wires. [20] A method of manufacturing a display panel according to claim 19, wherein the material of the touch layer comprises titanium and aluminum, and the formation temperature of the touch layer does not exceed 85°C. [21] A display device, the display device comprising a display panel according to any one of claims 1 to 18.

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