Display substrate, preparation method thereof and display device

Abstract

The invention provides a display substrate which comprises a display area and a peripheral area located on the periphery of the display area. The plurality of touch electrodes are located on the substrate and located in the display area; the plurality of touch control wires are located on the substrate, and one end of one touch control wire is electrically connected with at least one touch control electrode; one end of the touch control wire is arranged on the substrate, the binding pads are arranged on the substrate, the binding pads are arranged in the peripheral area, and the other end of the touch control wire is electrically connected with the binding pads; wherein the display substrate comprises a plurality of touch control wires, the display substrate further comprises a plurality of virtual wires, the plurality of virtual wires and the plurality of touch control wires are arranged in parallel and at intervals, at least two touch control wires are arranged between at least two adjacent virtual wires, and at least one virtual wire is electrically connected with at least one touch control wire through a connecting part.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and in particular, to a display substrate, a method for manufacturing the same, and a display device. Background Art

[0002] With the continuous development of display technologies, user interfaces with touch functions are widely applied in various electronic devices, such as display panels or display devices. The touch structure for implementing the touch function includes touch electrodes and touch traces. How to ensure the manufacturing yield of the touch structure to achieve an accurate touch function is one of the topics that researchers of display products focus on.

[0003] The above information disclosed in this section is only used for understanding the background of the inventive concept of the present disclosure. Therefore, the above information may include information that does not constitute the prior art. Summary of the Invention

[0004] In one aspect, a display substrate is provided, including a display area and a peripheral area located around the display area. The display substrate includes:

[0005] A substrate;

[0006] A plurality of touch electrodes located on the substrate and within the display area;

[0007] A plurality of touch traces located on the substrate, one end of one of the touch traces being electrically connected to at least one of the touch electrodes; and

[0008] A plurality of bonding pads located on the substrate, the bonding pads being located in the peripheral area, and the other end of the touch trace being electrically connected to the bonding pad;

[0009] Wherein, the display substrate further includes a plurality of dummy traces, the plurality of dummy traces being parallel and spaced apart from the plurality of touch traces, and at least two touch traces being provided between at least two adjacent dummy traces, and at least one dummy trace being electrically connected to at least one touch trace through a connection portion.

[0010] According to some exemplary embodiments, the plurality of touch traces include at least one target repair trace;

[0011] At least one of the target repair traces is electrically connected to an adjacent dummy trace through at least two connection portions, and / or,

[0012] At least one of the target repair traces is electrically connected to a part of an adjacent touch trace through at least two connection portions.

[0013] According to some exemplary embodiments, at least one of the target repair traces includes at least one discontinuous trace having a discontinuous portion, and there is at least one touch trace between the discontinuous trace and at least one adjacent virtual trace;

[0014] One touch trace adjacent to the discontinuous trace includes first, second, and third sub-segments spaced apart along the extending direction;

[0015] The display substrate further includes at least two first connection portions that electrically connect the discontinuous trace and the second sub-segment respectively, and along the extending direction of the discontinuous trace, the two first connection portions are located on both sides of the discontinuous portion;

[0016] The first sub-segment and the third sub-segment are electrically connected through a part of one touch trace or one virtual trace located on a side of the first sub-segment away from the discontinuous trace.

[0017] According to some exemplary embodiments, there is a first touch trace between the discontinuous trace and at least one adjacent virtual trace, and the first touch trace includes the first, second, and third sub-segments; and

[0018] The display substrate further includes at least two second connection portions. The first sub-segment is electrically connected to the virtual trace through one second connection portion, and the third sub-segment is electrically connected to the virtual trace through another second connection portion.

[0019] According to some exemplary embodiments, there is a first touch trace and a second touch trace located between the first touch trace and the virtual trace between the discontinuous trace and at least one adjacent virtual trace. The first touch trace includes the first, second, and third sub-segments, and the second touch trace includes fourth, fifth, and sixth sub-segments spaced apart along the extending direction;

[0020] The display substrate further includes at least two second connection portions. The first sub-segment is electrically connected to the fifth sub-segment through one second connection portion, and the third sub-segment is electrically connected to the fifth sub-segment through another second connection portion;

[0021] The display substrate further includes at least two third connection portions. The fourth sub-segment is electrically connected to the virtual trace through one third connection portion, and the sixth sub-segment is electrically connected to the virtual trace through another third connection portion.

[0022] According to some exemplary embodiments, the first touch trace includes a first break and a second break, and the first touch trace is truncated by the first break and the second break into the first sub-segment, the second sub-segment, and the third sub-segment;

[0023] The second touch trace includes a third break and a fourth break, and the second touch trace is truncated by the third break and the fourth break into the fourth sub-segment, the fifth sub-segment, and the sixth sub-segment;

[0024] Along the extending direction of the discontinuous trace, the third break is located on a side of the first break away from the discontinuous portion, and the fourth break is located on a side of the second break away from the discontinuous portion.

[0025] According to some exemplary embodiments, the strip of virtual traces includes a first virtual trace and a second virtual trace located on two sides of the discontinuous trace, and the first virtual trace is located on a side of the first sub-segment away from the discontinuous trace; and

[0026] The number of touch traces between the discontinuous trace and the first virtual trace is less than or equal to the number of touch traces between the discontinuous trace and the second virtual trace.

[0027] According to some exemplary embodiments, at least one of the target repair traces includes at least one discontinuous trace having a discontinuous portion, and the discontinuous trace and one of the virtual traces are arranged adjacent to each other;

[0028] The display substrate further includes at least two connection portions that electrically connect the virtual trace and the discontinuous trace respectively, and along the extending direction of the discontinuous trace, the two connection portions are located on two sides of the discontinuous portion.

[0029] According to some exemplary embodiments, at least one of the target repair traces includes at least one set of shorting trace groups, and each shorting trace group includes a first shorting trace, a second shorting trace, and a shorting portion connecting the first shorting trace and the second shorting trace;

[0030] A plurality of the virtual traces includes a first virtual trace and a second virtual trace located on two sides of the shorting trace group, the first shorting trace is arranged adjacent to one of the virtual traces, the second shorting trace is arranged adjacent to the second virtual trace or there is at least one of the touch traces between the second shorting trace and the second virtual trace;

[0031] The first shorting trace includes a fifth break and a sixth break, and along the extending direction of the first shorting trace, the fifth break and the sixth break are located on two sides of the shorting portion;

[0032] The first shorting trace is truncated by the fifth break and the sixth break into a seventh sub-trace, an eighth sub-trace, and a ninth sub-trace arranged at intervals. The eighth sub-trace is located between the fifth break and the sixth break. The display substrate further includes two fourth connection parts, and the seventh sub-trace and the ninth sub-trace are respectively electrically connected to the first virtual trace through the two fourth connection parts; and

[0033] The eighth sub-trace is electrically connected to the second shorting trace through the shorting part.

[0034] According to some exemplary embodiments, the second shorting trace is arranged adjacent to the second virtual trace;

[0035] The fifth break extends to truncate the second shorting trace, and the sixth break extends to truncate the second shorting trace. The second shorting trace is truncated into a tenth sub-trace, an eleventh sub-trace, and a twelfth sub-trace arranged at intervals. The eleventh sub-trace is located between the fifth break and the sixth break;

[0036] The display substrate further includes two fifth connection parts, and the tenth sub-trace and the twelfth sub-trace are respectively electrically connected to the second virtual trace through the two fifth connection parts; and

[0037] The eighth sub-trace is electrically connected to the eleventh sub-trace through the shorting part.

[0038] According to some exemplary embodiments, at least one of the target repair traces includes at least one set of shorting trace groups. The shorting trace group includes a first shorting trace, a second shorting trace, and a shorting part connecting the first shorting trace and the second shorting trace;

[0039] A plurality of the virtual traces include a first virtual trace and a second virtual trace located on both sides of the shorting trace group. The first virtual trace is located on a side of the first shorting trace away from the second shorting trace. At least one of the touch traces is included between the first shorting trace and the first virtual trace, and at least another one of the touch traces is included between the second shorting trace and the second virtual trace;

[0040] The first shorting trace includes a fifth break and a sixth break. Along the extending direction of the first shorting trace, the fifth break and the sixth break are located on both sides of the shorting part;

[0041] The first shorting trace is truncated by the fifth break and the sixth break into a seventh sub-trace, an eighth sub-trace, and a ninth sub-trace arranged at intervals. The eighth sub-trace is located between the fifth break and the sixth break;

[0042] One of the touch traces located on a side of the first shorting trace away from the second shorting trace includes a thirteenth sub-trace segment, a fourteenth sub-trace segment, and a fifteenth sub-trace segment that are spaced apart along an extending direction;

[0043] The display substrate further includes at least two fourth connection portions, and the seventh sub-trace segment and the ninth sub-trace segment are electrically connected to the fourteenth sub-trace segment through the two fourth connection portions respectively;

[0044] The thirteenth sub-trace segment and the fifteenth sub-trace segment are electrically connected through a part of the touch trace located on a side of the thirteenth sub-trace segment away from the shorting trace group or the first virtual trace; and

[0045] The eighth sub-trace segment is electrically connected to the second shorting trace through the shorting portion.

[0046] According to some exemplary embodiments, the number of touch traces located between the first shorting trace and the first virtual trace is less than or equal to the number of touch traces located between the second shorting trace and the second virtual trace.

[0047] According to some exemplary embodiments, multiple touch traces include multiple touch driving traces and multiple touch sensing traces;

[0048] Multiple virtual traces are parallel and spaced apart from multiple touch driving traces, and at least two touch traces are disposed between at least two adjacent virtual traces. At least one virtual trace and at least one touch driving trace are electrically connected through the connection portion; and / or,

[0049] Multiple virtual traces are parallel and spaced apart from multiple touch sensing traces, and at least two touch sensing traces are disposed between at least two adjacent virtual traces. At least one virtual trace and at least one touch driving sensing trace are electrically connected through the connection portion.

[0050] According to some exemplary embodiments, the touch traces and the virtual traces are located on the same layer, and the connection portion is located on a side of the touch traces and the virtual traces away from the substrate.

[0051] According to some exemplary embodiments, at least one virtual trace includes at least two virtual sub-trace segments that are spaced apart, and the two virtual sub-trace segments are spaced apart along an extending direction of the virtual trace; and

[0052] In at least one of the virtual traces, one virtual sub - trace segment is electrically connected to one adjacent touch trace on one side through the connection part, and the other virtual sub - trace segment is electrically connected to one adjacent touch trace on the other side through the connection part; and / or, in at least one of the virtual traces, one virtual sub - trace segment is electrically connected to an adjacent touch trace through the connection part, and the other virtual sub - trace segment is electrically connected to the same adjacent touch trace through the connection part.

[0053] In another aspect, a display device is provided, wherein the display device includes the display substrate described in any one of the above.

[0054] In another aspect, a method for manufacturing a display substrate is provided. The display substrate includes a display area and a peripheral area located around the display area. The method includes:

[0055] Forming bonding pads on the substrate, and the bonding pads are located in the peripheral area;

[0056] Forming a touch layer on the substrate. The touch layer includes a plurality of touch electrodes and a plurality of touch traces. A plurality of the touch electrodes are located in the display area. One end of one touch trace is electrically connected to at least one of the touch electrodes and the other end is electrically connected to one bonding pad;

[0057] Forming a plurality of virtual traces on the substrate. The plurality of virtual traces are parallel and spaced apart from the plurality of touch traces. At least two touch traces are provided between at least two adjacent virtual traces; and

[0058] Detecting the plurality of touch traces, and forming connection parts on the side of the virtual traces and the touch traces away from the substrate according to the detection results. At least one virtual trace and at least one touch trace are electrically connected through the connection parts.

[0059] According to some exemplary embodiments, detecting the plurality of touch traces and forming connection parts on the side of the virtual traces and the touch traces away from the substrate according to the detection results includes:

[0060] Detecting at least one target repair trace; and

[0061] Forming at least two connection parts on the side of the target repair trace away from the substrate to repair the target repair trace. At least one target repair trace is electrically connected to an adjacent virtual trace through at least two connection parts, and / or at least one target repair trace is electrically connected to a part of an adjacent touch trace through at least two connection parts.

[0062] According to some exemplary embodiments, detecting at least one target repair trace includes:

[0063] Detecting at least one discontinuous trace, the discontinuous trace including a discontinuous portion, the discontinuous trace being arranged adjacent to at least one of the virtual traces; and

[0064] Forming the connecting portion to repair the target repair trace includes:

[0065] Forming at least two first connecting portions, the two first connecting portions respectively electrically connecting the adjacent discontinuous trace and the virtual trace, and along the extending direction of the discontinuous trace, the two first connecting portions are located on both sides of the discontinuous portion.

[0066] According to some exemplary embodiments, detecting at least one target repair trace includes:

[0067] Detecting at least one discontinuous trace, the discontinuous trace including a discontinuous portion, the discontinuous trace being arranged adjacent to at least another touch trace;

[0068] Forming the connecting portion to repair the target repair trace includes:

[0069] Cutting an adjacent touch trace to obtain a first sub-segment, a second sub-segment, and a third sub-segment arranged at intervals along the extending direction; and

[0070] Forming at least two first connecting portions and at least two second connecting portions, the two first connecting portions respectively electrically connecting the discontinuous trace and the second sub-segment, and along the extending direction of the discontinuous trace, the two connecting portions are located on both sides of the discontinuous portion, the two second connecting portions respectively electrically connecting the first sub-segment and the third sub-segment to a part of the touch trace or the virtual trace on the side of the first sub-segment away from the discontinuous trace.

[0071] According to some exemplary embodiments, detecting at least one target repair trace includes:

[0072] Detecting at least one set of shorted trace groups, the shorted trace group including a first shorted trace, a second shorted trace, and a shorted portion connecting the first shorted trace and the second shorted trace, the shorted trace group being located between a first virtual trace and a second virtual trace, and the first shorted trace being arranged adjacent to the first virtual trace, the second shorted trace being arranged adjacent to the second virtual trace;

[0073] Forming the connecting portion to repair the target repair trace includes:

[0074] Cut the short - circuit trace group to form a fifth break and a sixth break. Along the extension direction of the short - circuit trace group, the fifth break and the sixth break are located on both sides of the short - circuit part. The first short - circuit trace is truncated by the fifth break and the sixth break into seventh sub - segments, eighth sub - segments, and ninth sub - segments arranged at intervals. The eighth sub - segment is located between the fifth break and the sixth break. The second short - circuit trace is truncated by the fifth break and the sixth break into tenth sub - segments, eleventh sub - segments, and twelfth sub - segments arranged at intervals. The eleventh sub - segment is located between the fifth break and the sixth break; and

[0075] Form at least two fourth connection parts and at least two fifth connection parts. One of the fourth connection parts electrically connects the seventh sub - segment and the first virtual trace, and the other fourth connection part electrically connects the ninth sub - segment and the first virtual trace. One of the fifth connection parts electrically connects the tenth sub - segment to the second virtual trace, and the other fifth connection part electrically connects the twelfth sub - segment to the second virtual trace.

[0076] According to some exemplary embodiments, detecting at least one target repair trace includes:

[0077] Detecting at least one group of short - circuit trace groups. The short - circuit trace group includes a first short - circuit trace, a second short - circuit trace, and a short - circuit part connecting the first short - circuit trace and the second short - circuit trace. The short - circuit trace group is located between a first virtual trace and a second virtual trace, and the first short - circuit trace is arranged adjacent to the first virtual trace. The second short - circuit trace is arranged adjacent to the second virtual trace or there is at least one touch trace between the second short - circuit trace and the second virtual trace;

[0078] Forming the connection part to repair the target repair trace includes:

[0079] Cut the first short - circuit trace to form a fifth break and a sixth break. Along the extension direction of the first short - circuit trace, the fifth break and the sixth break are located on both sides of the short - circuit part. The first short - circuit trace is truncated by the fifth break and the sixth break into seventh sub - segments, eighth sub - segments, and ninth sub - segments arranged at intervals. The eighth sub - segment is located between the fifth break and the sixth break; and

[0080] Form at least two fourth connection parts. One of the fourth connection parts electrically connects the seventh sub - segment and the first virtual trace, and the other fourth connection part electrically connects the ninth sub - segment and the first virtual trace. Description of the Drawings

[0081] Other objects and advantages of the present disclosure will become apparent and help to have a comprehensive understanding of the present disclosure through the description of the present disclosure with reference to the accompanying drawings below.

[0082] Figure 1 A schematic plan view of a display substrate according to some embodiments of the present disclosure is shown.

[0083] Figure 2 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0084] Figure 3 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0085] Figure 4 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0086] Figure 5 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0087] Figure 6 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0088] Figure 7 Schematically shown is a cross-sectional view taken along Figure 5 center line BB'.

[0089] Figure 8 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0090] Figure 9 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0091] Figure 10 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0092] Figure 11 Schematically shown is a display substrate according to some embodiments of the present disclosure Figure 1 at an enlarged plan view of region A.

[0093] Figure 12Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A of

[0094] Figure 13 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A of

[0095] Figure 14 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A of

[0096] Figure 15A Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A of

[0097] Figure 15B Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A of

[0098] Figure 16 Schematically shows a flowchart of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0099] Figure 17A - Figure 17B Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0100] Figure 18A - Figure 18C Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0101] Figure 19A - Figure 19C Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0102] Figure 20A - Figure 20C Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0103] It should be noted that, for clarity, in the drawings used to describe the embodiments of the present disclosure, the dimensions of layers, structures, or regions may be enlarged or reduced, that is, these drawings are not drawn to actual scale. Detailed implementation manners

[0104] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various exemplary embodiments. However, it is apparent that the various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form to avoid unnecessarily obscuring the various exemplary embodiments. Further, the various exemplary embodiments may be different, but not necessarily exclusive. For example, specific shapes, configurations, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0105] In the drawings, for clarity and / or descriptive purposes, the sizes and relative sizes of elements may be exaggerated. Thus, the sizes and relative sizes of the respective elements are not necessarily limited to the sizes and relative sizes shown in the figures. When the exemplary embodiments may be implemented differently, the specific process orders may be performed differently from the described order. For example, two consecutively described processes may be performed substantially simultaneously or in an order opposite to the described order. Further, the same reference numerals denote the same elements.

[0106] When an element is described as being "on", "connected to", or "coupled to" another element, the element may be directly on, directly connected to, or directly coupled to the other element, or there may be intervening elements. However, when an element is described as being "directly on", "directly connected to", or "directly coupled to" another element, there are no intervening elements. Other terms and / or expressions for describing the relationship between elements should be interpreted in a similar manner, e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", or "on" versus "directly on", etc. Further, the term "connected" may refer to a physical connection, an electrical connection, a communication connection, and / or a fluid connection. Further, the X-axis, Y-axis, and Z-axis are not limited to the three axes of a rectangular coordinate system and may be interpreted in a broader sense. For example, the X-axis, Y-axis, and Z-axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purposes of the present disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z such as XYZ, XY, YZ, and XZ. As used herein, the term "and / or" includes any combination and all combinations of one or more of the listed related items.

[0107] It should be understood that although terms such as first and second may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, the first element may be named the second element, and similarly, the second element may be named the first element.

[0108] Figure 1 A plan view schematically showing a display substrate according to some embodiments of the present disclosure. Figure 2 Schematically shown is a display substrate according to some embodiments of the present disclosure in Figure 1 an enlarged plan view of area A. Figure 3 Schematically shown is a display substrate according to some embodiments of the present disclosure in Figure 1 an enlarged plan view of area A.

[0109] Referring to Figure 1 , the display substrate includes a display area AA and a peripheral area NA located around the display area AA. The display substrate includes a substrate 100 and a touch layer 200 located on the substrate 100. The touch layer 200 includes a plurality of touch electrodes 210 and a plurality of touch traces 220. The plurality of touch electrodes 210 are located within the display area AA, and the plurality of touch electrodes 210 may be arranged at intervals along a first direction X and a second direction Y. The display substrate further includes a plurality of bonding pads Pad, and the plurality of bonding pads Pad are located in the peripheral area NA, for example, may be located on one side of the display area AA along the second direction Y. At least a part of the touch traces 220 is located in the peripheral area NA. One end of the touch traces 220 is electrically connected to at least one touch electrode 210, and the other end extends around the edge of the display area AA to be electrically connected to the bonding pads Pad. The plurality of bonding pads Pad are used for electrically connecting to the pins of a touch chip, and the touch chip transmits touch signals between the plurality of touch electrodes 210 through the plurality of bonding pads Pad and the plurality of touch traces 220, thereby realizing the touch function.

[0110] Exemplarily, the plurality of touch electrodes 210 include a plurality of touch driving electrodes 211 and a plurality of touch sensing electrodes 212. The plurality of touch driving electrodes 211 are arranged in multiple rows. One row of touch driving electrodes 211 includes a plurality of touch driving electrodes 211 arranged along the first direction X, and the plurality of touch driving electrodes 211 in one row are sequentially electrically connected through a plurality of first electrode connection portions 231. The plurality of touch sensing electrodes 212 are arranged in multiple columns. One column of touch sensing electrodes 212 includes a plurality of touch sensing electrodes 212 arranged along the second direction Y, and the plurality of touch sensing electrodes 212 in one column are sequentially electrically connected through a plurality of second electrode connection portions 232.

[0111] The multiple touch traces 220 include multiple touch driving traces 221 and multiple touch sensing traces 222. One end of the touch driving trace 221 is electrically connected to the bonding pad Pad, and the other end is electrically connected to a row of touch driving electrodes 211. One end of the touch sensing trace 222 is electrically connected to the bonding pad Pad, and the other end is electrically connected to a column of touch sensing electrodes 212.

[0112] It should be noted that Figure 1 only schematically shows a connection manner between a touch trace 220 and a touch electrode 210. In Figure 1 , the touch driving trace 221 is only electrically connected to one side (the left side shown in the figure) of a row of touch driving electrodes 211 along the first direction X. According to needs, the touch driving trace 221 can also be electrically connected to the other side of a row of touch driving electrodes 211 along the first direction X, or both sides of a row of touch driving electrodes 211 along the first direction X can be respectively electrically connected to two touch driving traces 221.

[0113] Similarly, in Figure 1 , the touch sensing trace 222 is only electrically connected to one side (the lower side shown in the figure) of a column of touch sensing electrodes 212 along the second direction Y. According to needs, the touch sensing trace 222 can also be electrically connected to the other side of a column of touch sensing electrodes 212 along the second direction Y, or both sides of a column of touch sensing electrodes 212 along the second direction Y can be respectively electrically connected to two touch sensing traces 222.

[0114] With reference to Figure 1 、 Figure 2 and Figure 3 , during the preparation process of the touch layer 200, due to factors such as foreign objects, there will be defects such as disconnection of the touch traces 220 or short - circuit between adjacent touch traces 220, which will further cause touch malfunction. Especially for the display substrate applied to in - vehicle products, its size is larger and the risk of foreign objects is higher. In order to avoid touch malfunction caused by short - circuit or disconnection of the touch traces 220, dummy traces DML are inserted between adjacent touch traces 220. The dummy traces DML are arranged in parallel with adjacent touch traces 220. One dummy trace DML is arranged between two adjacent touch traces 220, that is, multiple touch traces 220 and multiple dummy traces DML are arranged alternately. The dummy traces DML can be used to repair adjacent defective touch traces 220 so that they can transmit touch signals.

[0115] For example, with reference to Figure 2 , if a touch trace 220 is disconnected due to factors such as foreign objects, the two separated parts in the middle of this touch trace 220 can be respectively connected to an adjacent dummy trace DML through two connection parts 240, so that the touch signal can be transmitted along the path indicated by the dotted arrow in the figure.

[0116] For example, referring to Figure 3 , if two adjacent touch traces 220 are short-circuited due to foreign objects or other factors, the two touch traces 220 can be cut on both sides of the short-circuit position, and then the two touch traces 220 are respectively connected to the adjacent dummy traces DML. Specifically, the touch trace 220 on the left side is electrically connected to the adjacent dummy trace DML on the far left through two connection parts 240 after being cut, and the touch trace 220 on the right side is electrically connected to the adjacent dummy trace DML on the far right through two connection parts 240 after being cut, so that the two touch traces 220 can be transmitted along the paths indicated by the dotted arrows in the figure respectively.

[0117] For example, the extension range of the dummy trace DML can be substantially the same as the extension range of the adjacent touch trace 220, that is, one end of the dummy trace DML extends to the side of the bonding pad Pad but is not electrically connected to the bonding pad Pad, and the other end of the dummy trace DML extends to a position outside the display area AA near the touch electrode 210 and the touch electrodes 210 are arranged at intervals. Optionally, according to requirements, the dummy trace DML can also be arranged in parallel with only a part of the touch trace 220.

[0118] For example, the dummy trace DML and the touch trace 220 can both be located in the touch layer 200, that is, when the touch trace 220 is formed, the dummy trace DML is formed at the same time, and the line width of the dummy trace DML can be the same as that of the touch trace 220.

[0119] The inventors have found through research that inserting the dummy trace DML between adjacent touch traces 220 can effectively repair the defective touch traces 220, but these touch traces 220 will occupy a large routing space, which will cause the border width of the display substrate to increase and it is difficult to meet the display requirements of narrow borders.

[0120] Figure 4 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure in Figure 1 region A. Figure 5 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure in Figure 1 region A. Figure 6 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure in Figure 1 region A.

[0121] According to some exemplary embodiments, referring to Figure 4, in order to avoid the problem that the border of the display substrate is relatively wide due to setting too many virtual routing lines DML, the number of virtual routing lines DML can be reduced, and at least two touch routing lines 220 are arranged between two adjacent virtual routing lines DML. On this basis, by designing the defect repair structure, the defective touch routing line 220 can still be repaired by using the virtual routing line DML to ensure that the touch signal can be transmitted normally.

[0122] When the defective touch routing line 220 (for convenience of description, hereinafter referred to as the target repair routing line, that is, the touch routing line 220 to be repaired) is arranged adjacent to the virtual routing line DML, the adjacent virtual routing line DML can be directly used to repair the target repair routing line; when the target repair routing line is not arranged adjacent to the virtual routing line DML, a part of the adjacent non-defective touch routing line 220 can be borrowed to repair the target repair routing line, and the borrowed touch routing line 220 can be further connected through the adjacent virtual routing line DML or by borrowing a part of another adjacent non-defective touch routing line 220 to achieve signal conduction. The specific repair method will be described in detail later.

[0123] According to some exemplary embodiments, referring to Figure 5 , two touch routing lines 220 are arranged between two adjacent virtual routing lines DML, and the virtual routing lines DML and the touch routing lines 220 are alternately arranged in a ratio of 1:2 in terms of quantity.

[0124] At least one target repair routing line includes at least one discontinuous routing line OL, and the discontinuous routing line OL has a discontinuous part OLa. The discontinuous routing line OL is disconnected at the discontinuous part OLa, resulting in the interruption of the touch signal here. If the discontinuous routing line OL is arranged adjacent to a virtual routing line DML, the adjacent virtual routing line DML can be used to repair the discontinuous routing line OL. Specifically, the display substrate further includes at least two connection parts 240. The two connection parts 240 electrically connect the virtual routing line DML and the discontinuous routing line OL respectively, and along the extending direction of the discontinuous routing line OL, the two connection parts 240 are located on both sides of the discontinuous part OLa. The virtual routing line DML can connect the two parts of the discontinuous routing line OL on both sides of the discontinuous part OLa, so that the touch signal can be transmitted along the path indicated by the dotted arrow in the figure.

[0125] Figure 5 Two adjacent discontinuous routing lines OL are schematically shown, and these two discontinuities can be repaired respectively by two adjacent virtual routing lines DML located on both sides of these two discontinuous routing lines OL.

[0126] It should be noted that Figure 5It shows an enlarged view of the setting area of the touch driving trace 221. A plurality of virtual traces DML are arranged in parallel and at intervals with a plurality of touch driving traces 221. At least two touch traces 220 are arranged between at least two adjacent virtual traces DML. At least one virtual trace DML and at least one touch driving trace 221 are electrically connected through a connection part 240.

[0127] With reference to Figure 1 and Figure 5 , the arrangement of the touch sensing trace 222 and the virtual trace DML is similar to the arrangement of the touch driving trace 221 and the virtual trace DML. A plurality of virtual traces DML are arranged in parallel and at intervals with a plurality of touch sensing traces 222. At least two touch sensing traces 222 are arranged between at least two adjacent virtual traces DML. At least one virtual trace DML and at least one touch sensing trace 222 are electrically connected through a connection part 240.

[0128] Figure 7 It schematically shows a cross-sectional view taken along Figure 5 the center line BB'.

[0129] According to some exemplary embodiments, with reference to Figure 5 and Figure 7 , the touch trace 220 and the virtual trace DML are located on the same layer, and the connection part 240 is located on the side of the touch trace 220 and the virtual trace DML away from the substrate 100.

[0130] The touch layer 200 includes a first touch metal layer TMA, a touch insulating layer TLD located on the side of the first touch metal layer TMA away from the substrate 100, and a second touch metal layer TMB located on the side of the touch insulating layer TLD away from the substrate 100. The connection part 240 is located on the side of the second touch metal layer TMB away from the substrate 100.

[0131] The touch trace 220 can be located on the first touch metal layer TMA and the second touch metal layer TMB, that is, the touch trace 220 can have a double-layer trace structure, so as to reduce the trace resistance. The touch trace 220 includes a first sub-touch trace 220A located on the first touch metal layer TMA and a second sub-touch trace 220B located on the second touch metal layer TMB. The first sub-touch trace 220A and the second sub-touch trace 220B can be electrically connected through a via in the touch insulating layer TLD. Similarly, the virtual trace DML can also adopt a similar structure. The virtual trace DML includes a first sub-virtual trace DMLA located on the first touch metal layer TMA and a second sub-virtual trace DMLB located on the second touch metal layer TMB. The first sub-virtual trace DMLA and the second sub-virtual trace DMLB can be electrically connected through a via in the touch insulating layer TLD.

[0132] It should be noted that the discontinuous portion OLa in the discontinuous trace OL can be formed in one of the first sub-touch trace 220A and the second sub-touch trace 220B, or both the first sub-touch trace 220A and the second sub-touch trace 220B have the discontinuous portion Ola.

[0133] According to some exemplary embodiments, referring to Figure 6 , at least one target repair trace includes at least one set of short-circuit trace groups SL. The short-circuit trace group SL includes a first short-circuit trace SL1, a second short-circuit trace SL2, and a short-circuit portion SL3 connecting the first short-circuit trace SL1 and the second short-circuit trace SL2. The short-circuit portion SL3 is a structure remaining due to factors such as foreign objects during the formation of the touch trace 220. After connecting two adjacent touch traces 220 (i.e., the first short-circuit trace SL1 and the second short-circuit trace SL2) by the short-circuit portion SL3, it will affect the transmission of touch signals in these two touch traces 220. Therefore, it is necessary to repair through the dummy trace DML to ensure the normal transmission of touch signals.

[0134] Continuing to refer to Figure 6 , multiple dummy traces DML include a first dummy trace DML1 and a second dummy trace DML2 located on both sides of the short-circuit trace group SL. The first short-circuit trace SL1 is adjacent to the first dummy trace DML1, and the second short-circuit trace SL2 is adjacent to the second dummy trace DML2.

[0135] The short-circuit trace group SL includes a fifth break DK5 and a sixth break DK6. Along the extending direction of the first short-circuit trace SL1 and the second short-circuit trace SL2, the fifth break DK5 and the sixth break DK6 are located on both sides of the short-circuit portion SL3. The first short-circuit trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into seventh sub-segments SL11, eighth sub-segments SL12, and ninth sub-segments SL13 arranged at intervals. The eighth sub-segments SL12 are located between the fifth break DK5 and the sixth break DK6. The display substrate further includes two fourth connection portions 244. The seventh sub-segments SL11 and the ninth sub-segments SL13 are respectively electrically connected to the first dummy trace DML1 through the fourth connection portions 244.

[0136] The second short-circuit trace SL2 is truncated by the fifth break DK5 and the sixth break DK6 into tenth sub-segments SL21, eleventh sub-segments SL22, and twelfth sub-segments SL23 arranged at intervals. The eleventh sub-segments SL22 are located between the fifth break DK5 and the sixth break DK6. The display substrate further includes two fifth connection portions 245. The tenth sub-segments SL21 and the twelfth sub-segments SL23 are respectively electrically connected to the second dummy trace DML2 through the fifth connection portions 245. The eighth sub-segments SL12 are electrically connected to the eleventh sub-segments SL22 through the short-circuit portion SL3.

[0137] The fifth break DK5 and the sixth break DK6 are discontinuous structures formed by a cutting process during repair. With reference to Figure 7 , the fifth break DK5 and the sixth break DK6 will simultaneously cut off the first sub-touch trace 220A, the second sub-touch trace 220B, and the touch insulation layer TLD located between the two layers of traces. Further, the seventh sub-segment SL11 and the ninth sub-segment SL13 of the first shorting trace SL1 that are spaced from the shorting portion SL3 after cutting and the adjacent first dummy trace DML1 are connected through the fourth connecting portion 244. Similarly, the tenth sub-segment SL21 and the twelfth sub-segment SL23 of the second shorting trace SL2 that are spaced from the shorting portion SL3 after cutting and the adjacent second dummy trace DML2 are connected through the fifth connecting portion 245. Thus, the touch signals in the first shorting trace SL1 and the second shorting trace SL2 can be transmitted along the paths indicated by the dashed arrows in the figure.

[0138] Figure 8 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A. Figure 9 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A. Figure 10 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0139] According to some exemplary embodiments, with reference to Figure 8 - Figure 10 , three touch traces 220 are provided between adjacent dummy traces DML, and the dummy traces DML and the touch traces 220 are alternately arranged in a ratio of 1:3 in terms of quantity.

[0140] According to some exemplary embodiments, with reference to Figure 8 , at least one target repair trace includes at least one discontinuous trace OL, and the discontinuous trace OL has a discontinuous portion OLa. The discontinuous trace OL and a dummy trace DML are arranged adjacent to each other, and the discontinuous trace OL can be repaired through the adjacent dummy trace DML. Specifically, the display substrate further includes at least two connecting portions 240. The two connecting portions 240 electrically connect the dummy trace DML and the discontinuous trace OL respectively, and along the extending direction of the discontinuous trace OL, the two connecting portions 240 are located on both sides of the discontinuous portion OLa. The two parts of the discontinuous trace OL on both sides of the discontinuous portion OLa can be connected through the dummy trace DML, so that the touch signals in the discontinuous trace OL can be transmitted along the paths indicated by the dashed arrows in the figure.

[0141] According to some exemplary embodiments, with reference to Figure 9 , at least one target repair trace includes at least one discontinuous trace OL, the discontinuous trace OL has a discontinuous portion OLa, and there is a touch trace 220 between the discontinuous trace OL and at least one adjacent virtual trace DML. For convenience of description, it is called the first touch trace TL1.

[0142] The first touch trace TL1 is cut into a first sub-segment TL11, a second sub-segment TL12, and a third sub-segment TL13 that are spaced apart along the extension direction. The display substrate further includes at least two first connection portions 241. The two first connection portions 241 electrically connect the discontinuous trace OL and the second sub-segment TL12 respectively, and along the extension direction of the discontinuous trace OL, the two first connection portions 241 are located on both sides of the discontinuous portion OLa. Thus, the touch signal in the discontinuous trace OL can be transmitted along the path indicated by the dotted arrow in the figure.

[0143] The display substrate further includes at least two second connection portions 242. The first sub-segment TL11 is electrically connected to the virtual trace DML through one second connection portion 242, and the third sub-segment TL13 is electrically connected to the virtual trace DML through another second connection portion 242. Thus, the touch signal in the first touch trace TL1 can be transmitted along the path indicated by the dotted arrow in the figure.

[0144] According to some exemplary embodiments, with reference to Figure 10 , at least one target repair trace includes at least one short-circuit trace group SL. The short-circuit trace group SL includes a first short-circuit trace SL1, a second short-circuit trace SL2, and a short-circuit portion SL3 connecting the first short-circuit trace SL1 and the second short-circuit trace SL2. A plurality of virtual traces DML include a first virtual trace DML1 and a second virtual trace DML2 located on both sides of the short-circuit trace group SL. The first short-circuit trace SL1 is arranged adjacent to one virtual trace DML, and there is at least one touch trace 220 between the second short-circuit trace SL2 and the second virtual trace DML2. Figure 10 The case including one touch trace 220 is schematically shown.

[0145] The first shorting trace SL1 includes a fifth break DK5 and a sixth break DK6. Along the extending direction of the first shorting trace SL1, the fifth break DK5 and the sixth break DK6 are located on both sides of the shorting portion SL3; the second shorting trace SL2 remains continuous on both sides of the shorting portion SL3. The first shorting trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into seventh sub-traces SL11, eighth sub-trace SL12, and ninth sub-trace SL13 arranged at intervals. The eighth sub-trace SL12 is located between the fifth break DK5 and the sixth break DK6. It is shown that the display substrate further includes two fourth connection portions 244. The seventh sub-trace SL11 and the ninth sub-trace SL13 are respectively electrically connected to the first virtual trace DML1 through the two fourth connection portions 244, and the eighth sub-trace SL12 is electrically connected to the second shorting trace SL2 through the shorting portion SL3. Thus, the touch signals in the first shorting trace SL1 and the second shorting trace SL2 can be respectively transmitted along the paths indicated by the dashed arrows in the figure.

[0146] It should be noted that when the first shorting trace SL1 and the first virtual trace DML1 are arranged adjacent to each other, and the second shorting trace SL2 and the second virtual trace DML2 are arranged adjacent to each other, that is Figure 6 The schematic trace structure can also be in accordance with Figure 10 The schematic repair structure is to cut only one shorting trace and repair it only through one adjacent virtual trace DML.

[0147] Figure 11 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure at Figure 1 region A. Figure 12 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0148] According to some exemplary embodiments, referring to Figure 11 or Figure 12 , there are four touch traces 220 provided between adjacent virtual traces DML, and the virtual traces DML and the touch traces 220 are alternately arranged in a quantity ratio of 1:4.

[0149] According to some exemplary embodiments, referring to Figure 11, at least one target repair trace includes at least one discontinuous trace OL. The discontinuous trace OL has a discontinuous portion OLa. There is a touch trace 220 between the discontinuous trace OL and at least one adjacent virtual trace DML. For convenience of description, it is called the first touch trace TL1. The first touch trace TL1 is cut into a first sub-segment TL11, a second sub-segment TL12, and a third sub-segment TL13 that are spaced apart along the extension direction. The display substrate further includes at least two first connection portions 241. The two first connection portions 241 electrically connect the discontinuous trace OL and the second sub-segment TL12 respectively, and along the extension direction of the discontinuous trace OL, the two first connection portions 241 are located on both sides of the discontinuous portion OLa. Thus, the touch signal in the discontinuous trace OL can be transmitted along the path indicated by the dotted arrow in the figure.

[0150] The display substrate further includes at least two second connection portions 242. The first sub-segment TL11 is electrically connected to the virtual trace DML through one second connection portion 242, and the third sub-segment TL13 is electrically connected to the virtual trace DML through another second connection portion 242. Thus, the touch signal in the first touch trace TL1 can be transmitted along the path indicated by the dotted arrow in the figure.

[0151] According to some exemplary embodiments, referring to Figure 11 , multiple virtual traces DML include a first virtual trace DML1 and a second virtual trace DML2 located on both sides of the discontinuous trace OL. The first virtual trace DML1 is located on the side of the first sub-segment TL11 away from the discontinuous trace OL. There is one touch trace 220 between the discontinuous trace OL and the first virtual trace DML1, and there are two touch traces 220 between the discontinuous trace OL and the second virtual trace DML2. The number of touch traces 220 between the discontinuous trace OL and the first virtual trace DML1 is less than or equal to the number of touch traces 220 between the discontinuous trace OL and the second virtual trace DML2. By using the virtual trace DML closer to the discontinuous trace OL to repair the discontinuous trace OL, the repair structure can be simplified.

[0152] According to some exemplary embodiments, referring to Figure 12, at least one target repair trace includes at least one set of short - circuit trace groups SL. The short - circuit trace group SL includes a first short - circuit trace SL1, a second short - circuit trace SL2, and a short - circuit portion SL3 connecting the first short - circuit trace SL1 and the second short - circuit trace SL2. A plurality of virtual traces DML include a first virtual trace DML1 and a second virtual trace DML2 located on both sides of the short - circuit trace group SL. The first virtual trace DML1 is located on the side of the first short - circuit trace SL1 away from the second short - circuit trace SL2. There is at least one touch trace 220 between the first short - circuit trace SL1 and the first virtual trace DML1, and there is at least another touch trace 220 between the second short - circuit trace SL2 and the second virtual trace DML2. Figure 12 It is schematically shown in Figure 12 that there is one touch trace 220 between the first short - circuit trace SL1 and the first virtual trace DML1, and there is one touch trace 220 between the second short - circuit trace SL2 and the second virtual trace DML2. For convenience of description, the touch trace 220 located between the first short - circuit trace SL1 and the first virtual trace DML1 is called the first touch trace TL1.

[0153] The first short - circuit trace SL1 includes a fifth break DK5 and a sixth break DK6. Along the extension direction of the first short - circuit trace SL1, the fifth break DK5 and the sixth break DK6 are located on both sides of the short - circuit portion SL3. The first short - circuit trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into seventh sub - segments SL11, eighth sub - segments SL12, and ninth sub - segments SL13 arranged at intervals. The eighth sub - segment SL12 is located between the fifth break DK5 and the sixth break DK6. The first touch trace TL1 includes a thirteenth sub - segment TL14, a fourteenth sub - segment TL15, and a fifteenth sub - segment TL16 arranged at intervals along the extension direction.

[0154] The display substrate further includes at least two fourth connection portions 244. The seventh sub - segment SL11 and the ninth sub - segment SL13 are electrically connected to the fourteenth sub - segment TL15 through the two fourth connection portions 244 respectively. The eighth sub - segment SL12 is electrically connected to the second short - circuit trace SL2 through the short - circuit portion SL3. Thus, the touch signals in the first short - circuit trace SL1 and the second short - circuit trace SL2 can be transmitted along the paths indicated by the dotted arrows in the figure.

[0155] The display substrate further includes at least two sixth connection portions 246. The thirteenth sub - segment TL14 and the fifteenth sub - segment TL16 are respectively electrically connected to the virtual trace DML located away from the short - circuit trace group SL of the first touch trace TL1 through the two sixth connection portions 246. Thus, the touch signals in the first touch trace TL1 can be transmitted along the paths indicated by the dotted arrows in the figure.

[0156] It should be noted that when the first touch trace TL1 is not arranged adjacent to the dummy trace DML, the thirteenth sub-segment TL14 and the fifteenth sub-segment TL16 in the first touch trace TL1 can further borrow a part of the adjacent touch trace 220 for connection.

[0157] Figure 13 Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0158] According to some exemplary embodiments, referring to Figure 13 , five touch traces 220 are provided between adjacent dummy traces DML, and the dummy traces DML and the touch traces 220 are alternately arranged in a quantity ratio of 1:5.

[0159] According to some exemplary embodiments, referring to Figure 13 , at least one target repair trace includes at least one discontinuous trace OL, and the discontinuous trace OL has a discontinuous portion OLa. There is a first touch trace TL1 between the discontinuous trace OL and at least one adjacent dummy trace DML and a second touch trace TL2 between the first touch trace TL1 and the dummy trace DML. The first touch trace TL1 includes a first sub-segment TL11, a second sub-segment TL12, and a third sub-segment TL13, and the second touch trace TL2 includes a fourth sub-segment TL21, a fifth sub-segment TL22, and a sixth sub-segment TL23 that are spaced apart along the extending direction.

[0160] The display substrate includes at least two first connection portions 241. The two first connection portions 241 electrically connect the discontinuous trace OL and the second sub-segment TL12 respectively, and along the extending direction of the discontinuous trace OL, the two first connection portions 241 are located on both sides of the discontinuous portion OLa, so that the touch signal in the discontinuous trace OL is transmitted along the path indicated by the dotted arrow in the figure.

[0161] The display substrate further includes at least two second connection portions 242. The first sub-segment TL11 is electrically connected to the fifth sub-segment TL22 through one second connection portion 242, and the third sub-segment TL13 is electrically connected to the fifth sub-segment TL22 through another second connection portion 242, so that the touch signal in the first touch trace TL1 is transmitted along the path indicated by the dotted arrow in the figure.

[0162] The display substrate further includes at least two third connection portions 243. The fourth sub-segment TL21 is electrically connected to the dummy trace DML through one third connection portion 243, and the sixth sub-segment TL23 is electrically connected to the dummy trace DML through another third connection portion 243, so that the touch signal in the second touch trace TL2 is transmitted along the path indicated by the dotted arrow in the figure.

[0163] According to some exemplary embodiments, with reference to Figure 13 , the first touch trace TL1 includes a first break DK1 and a second break DK2. The first touch trace TL1 is truncated by the first break DK1 and the second break DK2 into a first sub-segment TL11, a second sub-segment TL12, and a third sub-segment TL13. The second touch trace TL2 includes a third break DK3 and a fourth break DK4. The second touch trace TL2 is truncated by the third break DK3 and the fourth break DK4 into a fourth sub-segment TL21, a fifth sub-segment TL22, and a sixth sub-segment TL23. Along the extension direction of the discontinuous trace OL, the third break DK3 is located on a side of the first break DK1 away from the discontinuous portion OLa, and the fourth break DK4 is located on a side of the second break DK2 away from the discontinuous portion OLa. The extension length of the second sub-segment TL12 is less than the extension length of the fifth sub-segment TL22.

[0164] Figure 14 Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0165] According to some exemplary embodiments, with reference to Figure 14 , at least one target repair trace includes at least one set of short-circuit trace groups SL. The short-circuit trace group SL includes a first short-circuit trace SL1, a second short-circuit trace SL2, and a short-circuit portion SL3 connecting the first short-circuit trace SL1 and the second short-circuit trace SL2. A plurality of virtual traces DML include a first virtual trace DML1 and a second virtual trace DML2 on both sides of the short-circuit trace group SL. The first virtual trace DML1 is located on a side of the first short-circuit trace SL1 away from the second short-circuit trace SL2. There is at least one touch trace 220 between the first short-circuit trace SL1 and the first virtual trace DML1. There is at least another touch trace 220 between the second short-circuit trace SL2 and the second virtual trace DML2. Figure 14 Illustrates a case where one touch trace 220 is provided between the first short-circuit trace SL1 and the first virtual trace DML1, and two touch traces 220 are provided between the second short-circuit trace SL2 and the second virtual trace DML2. For convenience of description, the touch trace 220 located between the first short-circuit trace SL1 and the first virtual trace DML1 is referred to as the first touch trace TL1.

[0166] The first short - connection trace SL1 includes a fifth break DK5 and a sixth break DK6. Along the extension direction of the first short - connection trace SL1, the fifth break DK5 and the sixth break DK6 are located on both sides of the short - connection portion SL3. The first short - connection trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into seventh sub - traces SL11, eighth sub - trace SL12, and ninth sub - trace SL13 arranged at intervals, and the eighth sub - trace SL12 is located between the fifth break DK5 and the sixth break DK6. The first touch trace TL1 includes a thirteenth sub - trace TL14, a fourteenth sub - trace TL15, and a fifteenth sub - trace TL16 arranged at intervals along the extension direction. The display substrate further includes at least two fourth connection portions 244. The seventh sub - trace SL11 and the ninth sub - trace SL13 are electrically connected to the fourteenth sub - trace TL15 through the two fourth connection portions 244 respectively, and the eighth sub - trace SL12 is electrically connected to the second short - connection trace SL2 through the short - connection portion SL3. Thus, the touch signals in the first short - connection trace SL1 and the second short - connection trace SL2 can be transmitted along the paths indicated by the dotted arrows in the figure.

[0167] The display substrate further includes at least two sixth connection portions 246. The thirteenth sub - trace TL14 and the fifteenth sub - trace TL16 are respectively electrically connected to the virtual trace DML away from the short - connection trace group SL of the first touch trace TL1 through the two sixth connection portions 246. Thus, the touch signals in the first touch trace TL1 can be transmitted along the paths indicated by the dotted arrows in the figure.

[0168] According to some exemplary embodiments, referring to Figure 14 , the number of touch traces 220 between the first short - connection trace SL1 and the first virtual trace DML1 is less than or equal to the number of touch traces 220 between the second short - connection trace SL2 and the second virtual trace DML2. By using the virtual trace DML closer to the short - connection trace group SL to repair the short - connection trace group SL, the repair structure can be simplified.

[0169] Figure 15A Schematically shows an enlarged plan view of the display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0170] According to some exemplary embodiments, referring to Figure 15A, at least one virtual trace DML includes at least two virtual sub-traces DMLx arranged at intervals. The two virtual sub-traces DMLx are arranged at intervals along the extending direction of the virtual trace DML. The virtual sub-trace DMLx is formed by cutting a continuous virtual trace DML into multiple segments at intervals through a cutting process before repairing a defective touch trace 220. The multiple virtual sub-traces DMLx can repair multiple defects respectively. When two touch traces 220 on both sides of the virtual trace DML are defective, the same virtual trace DML can be used to repair the two touch traces 220. For example, the touch trace 220 on one side of the virtual trace DML is a discontinuous trace OL, and the touch trace 220 on the other side of the virtual trace DML is also a discontinuous trace OL. One virtual sub-trace DMLx is electrically connected to an adjacent discontinuous trace OL on one side through two connecting parts 240, and the other virtual sub-trace DMLx is electrically connected to an adjacent discontinuous trace OL on the other side through two connecting parts 240, so that the touch signals in these two discontinuous traces OL can be transmitted along the path indicated by the dotted arrow in the figure.

[0171] Figure 15B Schematically shows an enlarged plan view of a display substrate according to some embodiments of the present disclosure at Figure 1 region A.

[0172] According to some exemplary embodiments, referring to Figure 15B , a touch trace 220 adjacent to the virtual trace DML has multiple defects. For example, a touch trace 220 adjacent to the virtual trace DML is a discontinuous trace OL, and the discontinuous trace OL includes at least two discontinuous parts OLa. The two discontinuous parts Ola can be repaired respectively through two virtual sub-traces DMLx. One virtual sub-trace DMLx is electrically connected to the discontinuous trace OL through two connecting parts 240, and these two connecting parts 240 are respectively located on both sides of a discontinuous part OLa. The other virtual sub-trace DMLx is electrically connected to the discontinuous trace OL through another two connecting parts 240, and these two connecting parts 240 are respectively located on both sides of another discontinuous part OLa, so that the touch signals in this discontinuous trace OL can be transmitted along the path indicated by the dotted arrow in the figure.

[0173] At least some embodiments of the present disclosure further provide a display device, which includes the display substrate as described above. The display device may include any device or product with a display function. For example, the display device may be a smart phone, a mobile phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (such as a head-mounted device, electronic clothing, an electronic bracelet, an electronic necklace, electronic accessories, an electronic tattoo, or a smart watch), a television, etc.

[0174] Figure 16 A flowchart schematically showing a method for manufacturing a display substrate according to some embodiments of the present disclosure is shown.

[0175] At least some embodiments of the present disclosure further provide a method for manufacturing a display device. The display substrate includes a display area and a peripheral area located around the display area. Referring to Figure 16 , the manufacturing method includes the following steps S10 - step S40.

[0176] In step S10, a bonding pad is formed on the substrate, and the bonding pad is located in the peripheral area.

[0177] In step S20, a touch layer is formed on the substrate. The touch layer includes a plurality of touch electrodes and a plurality of touch traces. The plurality of touch electrodes are located in the display area. One end of a touch trace is electrically connected to at least one touch electrode and the other end is electrically connected to a bonding pad.

[0178] In step S30, a plurality of virtual traces are formed on the substrate. The plurality of virtual traces are parallel and spaced apart from the plurality of touch traces. At least two touch traces are provided between at least two adjacent virtual traces.

[0179] In step S40, the plurality of touch traces are detected, and a connection portion is formed on the side of the virtual traces and the touch traces away from the substrate according to the detection result. At least one virtual trace and at least one touch trace are electrically connected through the connection portion.

[0180] According to some exemplary embodiments, detecting the plurality of touch traces and forming a connection portion on the side of the virtual traces and the touch traces away from the substrate according to the detection result includes the following steps:

[0181] At least one target repair trace is detected;

[0182] At least two connection portions are formed on a side of the target repair trace away from the substrate to repair the target repair trace. At least one target repair trace is electrically connected to an adjacent virtual trace through at least two connection portions, and / or at least one target repair trace is electrically connected to a part of an adjacent touch trace through at least two connection portions.

[0183] Figure 17A - Figure 17B A process diagram schematically showing a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0184] According to some exemplary embodiments, the process of detecting a target repair trace and repairing the target repair trace includes:

[0185] Referring to Figure 17A , at least one discontinuous trace OL is detected. The discontinuous trace OL includes a discontinuous portion OLa, and the discontinuous trace OL is arranged adjacent to at least one virtual trace DML.

[0186] Referring to Figure 17B , at least two first connection portions 241 are formed. The two first connection portions 241 electrically connect the adjacent discontinuous trace OL and virtual trace DML respectively, and along the extending direction of the discontinuous trace OL, the two first connection portions 241 are located on both sides of the discontinuous portion OLa.

[0187] Exemplarily, a chemical vapor deposition repair (CVD Repair) process can be used to deposit and form the first connection portion 241 at a specific position. For example, tungsten hexafluoride can be used as a process gas, and the material of the deposited first connection portion 241 includes tungsten.

[0188] Figure 18A - Figure 18C A process diagram schematically showing a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0189] According to some exemplary embodiments, the process of detecting a target repair trace and repairing the target repair trace includes:

[0190] Referring to Figure 18A , at least one discontinuous trace OL is detected. The discontinuous trace OL includes a discontinuous portion OLa, and the discontinuous trace OL is arranged adjacent to at least another touch trace 220.

[0191] Referring to Figure 18B , a touch trace 220 adjacent to the discontinuous trace OL is cut to obtain first sub-segments TL11, second sub-segments TL12, and third sub-segments TL13 arranged at intervals along the extending direction.

[0192] Exemplarily, a laser cutting process can be used to cut the touch trace 220.

[0193] Reference Figure 18C , at least two first connection portions 241 and at least two second connection portions 242 are formed. The two first connection portions 241 respectively electrically connect the discontinuous trace OL to the second sub-segment TL12, and along the extending direction of the discontinuous trace OL, the two connection portions 240 are located on both sides of the discontinuous portion OLa. The two second connection portions 242 respectively electrically connect the first sub-segment TL11 and the third sub-segment TL13 to a part of the touch trace 220 or the virtual trace DML located on the side of the first sub-segment TL11 away from the discontinuous trace OL.

[0194] Figure 19A - Figure 19C Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0195] According to some exemplary embodiments, the process of detecting a target repair trace and repairing the target repair trace includes:

[0196] Reference Figure 19A , at least one set of short-circuit trace group SL is detected. The short-circuit trace group SL includes a first short-circuit trace SL1, a second short-circuit trace SL2, and a short-circuit portion SL3 connecting the first short-circuit trace SL1 and the second short-circuit trace SL2. The short-circuit trace group SL is located between the first virtual trace DML1 and the second virtual trace DML2, and the first short-circuit trace SL1 is arranged adjacent to the first virtual trace DML1, and the second short-circuit trace SL2 is arranged adjacent to the second virtual trace DML2.

[0197] Reference Figure 19B , the short-circuit trace group SL is cut to form a fifth break DK5 and a sixth break DK6. Along the extending direction of the short-circuit trace group SL, the fifth break DK5 and the sixth break DK6 are located on both sides of the short-circuit portion SL3. The first short-circuit trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into seventh sub-segments SL11, eighth sub-segments SL12, and ninth sub-segments SL13 arranged at intervals. The eighth sub-segments SL12 are located between the fifth break DK5 and the sixth break DK6. The second short-circuit trace SL2 is truncated by the fifth break DK5 and the sixth break DK6 into tenth sub-segments SL21, eleventh sub-segments SL22, and twelfth sub-segments SL23 arranged at intervals. The eleventh sub-segments SL22 are located between the fifth break DK5 and the sixth break DK6.

[0198] Reference Figure 19C, at least two fourth connection portions 244 and at least two fifth connection portions 245 are formed. One fourth connection portion 244 electrically connects the seventh sub-segment SL11 and the first virtual trace DML1, and the other fourth connection portion 244 electrically connects the ninth sub-segment SL13 and the first virtual trace DML1. One fifth connection portion electrically connects the tenth sub-segment SL21 and the second virtual trace DML2, and the other fifth connection portion 245 electrically connects the twelfth sub-segment SL23 and the second virtual trace DML2.

[0199] Figure 20A - Figure 20C Schematically shows a process diagram of a method for manufacturing a display substrate according to some embodiments of the present disclosure.

[0200] According to some exemplary embodiments, the process of detecting a target repair trace and repairing the target repair trace includes:

[0201] Referring to Figure 20A , at least one set of shorted trace group SL is detected. The shorted trace group SL includes a first shorted trace SL1, a second shorted trace SL2, and a shorted portion SL3 connecting the first shorted trace SL1 and the second shorted trace SL2. The shorted trace group SL is located between the first virtual trace DML1 and the second virtual trace DML2, and the first shorted trace SL1 is arranged adjacent to the first virtual trace DML1, and the second shorted trace SL2 is arranged adjacent to the second virtual trace DML2 or at least one touch trace 220 is included between the second shorted trace SL2 and the second virtual trace DML2.

[0202] Referring to Figure 20B , the first shorted trace SL1 is cut to form a fifth break DK5 and a sixth break DK6. Along the extending direction of the first shorted trace SL1, the fifth break DK5 and the sixth break DK6 are located on both sides of the shorted portion SL3. The first shorted trace SL1 is truncated by the fifth break DK5 and the sixth break DK6 into spaced-apart seventh sub-segments SL11, eighth sub-segments SL12, and ninth sub-segments SL13, and the eighth sub-segments SL12 are located between the fifth break DK5 and the sixth break DK6.

[0203] Referring to Figure 20C , at least two fourth connection portions 244 are formed. One fourth connection portion 244 electrically connects the seventh sub-segment SL11 and the first virtual trace DML1, and the other fourth connection portion 244 electrically connects the ninth sub-segment SL13 and the first virtual trace DML1.

[0204] It should be understood that the display device according to some exemplary embodiments of the present disclosure has all the characteristics and advantages of the above display substrate, and these characteristics and advantages can be referred to the description of the display substrate above and will not be elaborated here.

[0205] As used herein, the terms "substantially", "about", "approximately" and other similar terms are used as terms of approximation and not as terms of degree, and they are intended to account for the inherent variations in measured or calculated values that would be recognized by a person of ordinary skill in the art. Taking into account factors such as process variations, measurement problems, and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), "about" or "approximately" as used herein includes the stated value and means within an acceptable variation for a particular value as determined by a person of ordinary skill in the art. For example, "about" can mean within one or more standard deviations, or within ±10% or ±5% of the stated value.

[0206] Although some embodiments in accordance with the general inventive concept of the present disclosure have been illustrated and described, a person of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general inventive concept of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A display substrate, comprising a display area and a peripheral area located around the display area, wherein, The display substrate includes: a substrate; a plurality of touch electrodes located on the substrate and within the display area; a plurality of touch traces located on the substrate, one end of one of the touch traces being electrically connected to at least one of the touch electrodes; and a plurality of bonding pads located on the substrate, the bonding pads being located in the peripheral area, the other end of the touch trace being electrically connected to the bonding pad; wherein, the display substrate further includes a plurality of virtual traces, the plurality of virtual traces being arranged in parallel and spaced apart from the plurality of touch traces, at least two touch traces being provided between at least two adjacent virtual traces, and at least one virtual trace being electrically connected to at least one touch trace through a connection portion.

2. The display substrate according to claim 1, wherein The plurality of touch traces includes at least one target repair trace; At least one of the target repair traces is electrically connected to an adjacent virtual trace through at least two of the connection portions, and / or at least one of the target repair traces is electrically connected to a part of an adjacent touch trace through at least two of the connection portions.

3. The display substrate according to claim 2, wherein, At least one of the target repair traces includes at least one discontinuous trace, the discontinuous trace having a discontinuous portion, and at least one touch trace being provided between the discontinuous trace and at least one adjacent virtual trace; A touch trace adjacent to the discontinuous trace includes a first sub-segment, a second sub-segment, and a third sub-segment that are spaced apart along the extending direction; The display substrate further includes at least two first connection portions that electrically connect the discontinuous trace and the second sub-segment respectively, and along the extending direction of the discontinuous trace, the two first connection portions are located on both sides of the discontinuous portion; and The first sub-segment and the third sub-segment are electrically connected through a part of a touch trace or a virtual trace located on a side of the first sub-segment away from the discontinuous trace.

4. The display substrate according to claim 3, wherein, A first touch trace is provided between the discontinuous trace and at least one adjacent virtual trace, the first touch trace including the first sub-segment, the second sub-segment, and the third sub-segment; and The display substrate further includes at least two second connection portions, the first sub-segment being electrically connected to the virtual trace through one of the second connection portions, and the third sub-segment being electrically connected to the virtual trace through the other second connection portion.

5. The display substrate according to claim 3, wherein, A first touch trace and a second touch trace located between the first touch trace and the virtual trace are provided between the discontinuous trace and at least one adjacent virtual trace, the first touch trace including the first sub-segment, the second sub-segment, and the third sub-segment, and the second touch trace including a fourth sub-segment, a fifth sub-segment, and a sixth sub-segment that are spaced apart along the extending direction; The display substrate further includes at least two second connection portions, the first sub-segment being electrically connected to the fifth sub-segment through one of the second connection portions, and the third sub-segment being electrically connected to the fifth sub-segment through the other second connection portion; and The display substrate further includes at least two of the third connection portions, the fourth sub-segment is electrically connected to the virtual trace through one of the third connection portions, and the sixth sub-segment is electrically connected to the virtual trace through another of the third connection portions.

6. The display substrate according to claim 5, wherein, The first touch trace includes a first break and a second break, and the first touch trace is truncated by the first break and the second break into the first sub-segment, the second sub-segment, and the third sub-segment; The second touch trace includes a third break and a fourth break, and the second touch trace is truncated by the third break and the fourth break into the fourth sub-segment, the fifth sub-segment, and the sixth sub-segment; and Along the extending direction of the discontinuous trace, the third break is located on a side of the first break away from the discontinuous portion, and the fourth break is located on a side of the second break away from the discontinuous portion.

7. The display substrate according to any one of claims 3-6, wherein The plurality of virtual traces include a first virtual trace and a second virtual trace located on two sides of the discontinuous trace, and the first virtual trace is located on a side of the first sub-segment away from the discontinuous trace; and The number of touch traces between the discontinuous trace and the first virtual trace is less than or equal to the number of touch traces between the discontinuous trace and the second virtual trace.

8. The display substrate according to claim 2, wherein, At least one of the target repair traces includes at least one discontinuous trace having a discontinuous portion, and the discontinuous trace and a virtual trace are arranged adjacent to each other; and The display substrate further includes at least two connection portions that electrically connect the virtual trace and the discontinuous trace respectively, and along the extending direction of the discontinuous trace, the two connection portions are located on two sides of the discontinuous portion.

9. The display substrate according to claim 2, wherein, At least one of the target repair traces includes at least one shorting trace group, and the shorting trace group includes a first shorting trace, a second shorting trace, and a shorting portion connecting the first shorting trace and the second shorting trace; The plurality of virtual traces include a first virtual trace and a second virtual trace located on two sides of the shorting trace group, the first shorting trace is arranged adjacent to a virtual trace, and the second shorting trace is arranged adjacent to the second virtual trace or there is at least one touch trace between the second shorting trace and the second virtual trace; The first shorting trace includes a fifth break and a sixth break, and along the extending direction of the first shorting trace, the fifth break and the sixth break are located on two sides of the shorting portion; The first shorting trace is truncated by the fifth break and the sixth break into a seventh sub-segment, an eighth sub-segment, and a ninth sub-segment that are arranged at intervals, the eighth sub-segment is located between the fifth break and the sixth break, and the display substrate further includes two fourth connection portions, and the seventh sub-segment and the ninth sub-segment are electrically connected to the first virtual trace through the two fourth connection portions respectively; and The eighth sub-segment is electrically connected to the second shorting trace through the shorting portion.

10. The display substrate according to claim 9, wherein, The second shorting trace is arranged adjacent to the second virtual trace; The fifth break extends to cut off the second shorting trace, the sixth break extends to cut off the second shorting trace, the second shorting trace is cut into a tenth sub-trace, an eleventh sub-trace, and a twelfth sub-trace arranged at intervals, and the eleventh sub-trace is located between the fifth break and the sixth break; The display substrate further includes two fifth connection parts, and the tenth sub-trace and the twelfth sub-trace are respectively electrically connected to the second virtual trace through the two fifth connection parts; and The eighth sub-trace is electrically connected to the eleventh sub-trace through the shorting part.

11. The display substrate according to claim 2, wherein, At least one of the target repair traces includes at least one set of shorting trace groups, and each shorting trace group includes a first shorting trace, a second shorting trace, and a shorting part connecting the first shorting trace and the second shorting trace; Multiple virtual traces include a first virtual trace and a second virtual trace located on both sides of the shorting trace group. The first virtual trace is located on a side of the first shorting trace away from the second shorting trace. There is at least one of the touch traces between the first shorting trace and the first virtual trace, and there is at least another one of the touch traces between the second shorting trace and the second virtual trace; The first shorting trace includes a fifth break and a sixth break. Along the extending direction of the first shorting trace, the fifth break and the sixth break are located on both sides of the shorting part; The first shorting trace is cut into a seventh sub-trace, an eighth sub-trace, and a ninth sub-trace arranged at intervals by the fifth break and the sixth break, and the eighth sub-trace is located between the fifth break and the sixth break; One of the touch traces located on a side of the first shorting trace away from the second shorting trace includes a thirteenth sub-trace, a fourteenth sub-trace, and a fifteenth sub-trace arranged at intervals along the extending direction; The display substrate further includes at least two fourth connection parts, and the seventh sub-trace and the ninth sub-trace are respectively electrically connected to the fourteenth sub-trace through the two fourth connection parts; The thirteenth sub-trace and the fifteenth sub-trace are electrically connected through a part of the touch trace located on a side of the thirteenth sub-trace away from the shorting trace group or the first virtual trace; and The eighth sub-trace is electrically connected to the second shorting trace through the shorting part.

12. The display substrate according to claim 11, wherein, The number of touch traces between the first shorting trace and the first virtual trace is less than or equal to the number of touch traces between the second shorting trace and the second virtual trace.

13. The display substrate according to any one of claims 1-12, wherein, Multiple touch traces include multiple touch driving traces and multiple touch sensing traces; Multiple virtual traces are parallel and spaced apart from multiple touch driving traces. At least two touch traces are provided between at least two adjacent virtual traces. At least one virtual trace and at least one touch driving trace are electrically connected through the connection part; and / or, A plurality of the virtual traces are arranged in parallel and spaced apart from a plurality of the touch sensing traces, at least two touch sensing traces are arranged between at least two adjacent virtual traces, and at least one virtual trace is electrically connected to at least one touch driving and sensing trace through the connecting portion.

14. The display substrate according to any one of claims 1-13, wherein, The touch traces and the virtual traces are located on the same layer, and the connecting portion is located on a side of the touch traces and the virtual traces away from the substrate.

15. The display substrate according to any one of claims 1-14, wherein, At least one of the virtual traces includes at least two virtual sub-traces arranged at intervals, and the two virtual sub-traces are arranged at intervals along the extending direction of the virtual trace; and In at least one of the virtual traces, one virtual sub-trace is electrically connected to an adjacent touch trace on one side through the connecting portion, and the other virtual sub-trace is electrically connected to an adjacent touch trace on the other side through the connecting portion; and / or, in at least one of the virtual traces, one virtual sub-trace is electrically connected to an adjacent touch trace through the connecting portion, and the other virtual sub-trace is electrically connected to the same adjacent touch trace through the connecting portion.

16. A display device, wherein, The display device includes a display substrate according to any one of claims 1-15.

17. A method for manufacturing a display substrate, the display substrate including a display area and a peripheral area located around the display area, wherein, The method includes: forming bonding pads on the substrate, the bonding pads being located in the peripheral area; forming a touch layer on the substrate, the touch layer including a plurality of touch electrodes and a plurality of touch traces, the plurality of touch electrodes being located in the display area, and one end of one touch trace being electrically connected to at least one of the touch electrodes and the other end being electrically connected to one of the bonding pads; forming a plurality of virtual traces on the substrate, the plurality of virtual traces being arranged in parallel and spaced apart from the plurality of touch traces, and at least two touch traces being arranged between at least two adjacent virtual traces; and detecting the plurality of touch traces, and forming a connecting portion on a side of the virtual traces and the touch traces away from the substrate according to the detection result, and at least one virtual trace is electrically connected to at least one touch trace through the connecting portion.

18. The preparation method according to claim 17, wherein, Detecting the plurality of touch traces and forming a connecting portion on a side of the virtual traces and the touch traces away from the substrate according to the detection result includes: detecting at least one target repair trace; and forming at least two of the connecting portions on a side of the target repair trace away from the substrate to repair the target repair trace, and at least one of the target repair traces is electrically connected to an adjacent virtual trace through at least two of the connecting portions, and / or, at least one of the target repair traces is electrically connected to a part of an adjacent touch trace through at least two of the connecting portions.

19. The preparation method according to claim 18, wherein Detecting at least one target repair trace includes: detecting at least one discontinuous trace, the discontinuous trace including a discontinuous portion, and the discontinuous trace being arranged adjacent to one virtual trace; and Forming the connecting portion to repair the target repair trace includes: Form at least two first connection parts, the two first connection parts respectively electrically connect the adjacent discontinuous trace and the virtual trace, and along the extending direction of the discontinuous trace, the two first connection parts are located on both sides of the discontinuous part.

20. The preparation method according to claim 18, wherein Detecting at least one target repair trace includes: Detecting at least one discontinuous trace, the discontinuous trace includes a discontinuous part, and the discontinuous trace is arranged adjacent to at least another touch trace; Forming the connection part to repair the target repair trace includes: Cutting an adjacent touch trace to obtain a first sub-segment, a second sub-segment and a third sub-segment arranged at intervals along the extending direction; and Forming at least two first connection parts and at least two second connection parts, the two first connection parts respectively electrically connect the discontinuous trace and the second sub-segment, and along the extending direction of the discontinuous trace, the two connection parts are located on both sides of the discontinuous part, the two second connection parts respectively electrically connect the first sub-segment and the third sub-segment with a part of the touch trace or the virtual trace located on the side of the first sub-segment away from the discontinuous trace.

21. The preparation method according to claim 18, wherein, Detecting at least one target repair trace includes: Detecting at least one short-circuit trace group, the short-circuit trace group includes a first short-circuit trace, a second short-circuit trace and a short-circuit part connecting the first short-circuit trace and the second short-circuit trace, the short-circuit trace group is located between a first virtual trace and a second virtual trace, and the first short-circuit trace is arranged adjacent to the first virtual trace, and the second short-circuit trace is arranged adjacent to the second virtual trace; Forming the connection part to repair the target repair trace includes: Cutting the short-circuit trace group to form a fifth break and a sixth break, along the extending direction of the short-circuit trace group, the fifth break and the sixth break are located on both sides of the short-circuit part, the first short-circuit trace is truncated by the fifth break and the sixth break into a seventh sub-segment, an eighth sub-segment and a ninth sub-segment arranged at intervals, the eighth sub-segment is located between the fifth break and the sixth break, the second short-circuit trace is truncated by the fifth break and the sixth break into a tenth sub-segment, an eleventh sub-segment and a twelfth sub-segment arranged at intervals, the eleventh sub-segment is located between the fifth break and the sixth break; and Forming at least two fourth connection parts and at least two fifth connection parts, one fourth connection part electrically connects the seventh sub-segment and the first virtual trace, the other fourth connection part electrically connects the ninth sub-segment and the first virtual trace, one fifth connection part electrically connects the tenth sub-segment with the second virtual trace, and the other fifth connection part electrically connects the twelfth sub-segment with the second virtual trace.

22. The preparation method according to claim 18, wherein, Detecting at least one target repair trace includes: At least one set of short - circuited trace groups is detected. The short - circuited trace group includes a first short - circuited trace, a second short - circuited trace, and a short - circuit portion connecting the first short - circuited trace and the second short - circuited trace. The short - circuited trace group is located between a first virtual trace and a second virtual trace, and the first short - circuited trace is arranged adjacent to the first virtual trace. The second short - circuited trace is arranged adjacent to the second virtual trace or there is at least one touch trace between the second short - circuited trace and the second virtual trace; Forming the connecting portion to repair the target repair trace includes: Cutting the first short - circuited trace to form a fifth break and a sixth break. Along the extending direction of the first short - circuited trace, the fifth break and the sixth break are located on both sides of the short - circuit portion. The first short - circuited trace is truncated by the fifth break and the sixth break into seventh sub - segments, eighth sub - segments, and ninth sub - segments arranged at intervals. The eighth sub - segment is located between the fifth break and the sixth break; and Forming at least two fourth connecting portions, one of the fourth connecting portions electrically connecting the seventh sub - segment and the first virtual trace, and the other fourth connecting portion electrically connecting the ninth sub - segment and the first virtual trace.

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