Touch layer group and touch display device

Abstract

A touch layer group includes a touch area and a peripheral area. The touch layer group includes a plurality of first touch electrodes and a plurality of second touch electrodes, a plurality of first touch wires, a plurality of second touch wires, and a shielding line. The plurality of first touch electrodes and the plurality of second touch electrodes are located in the touch area. The plurality of first touch wires are electrically connected with the plurality of first touch electrodes and extend to the peripheral area. The plurality of second touch wires are electrically connected with the plurality of second touch electrodes and extend to the peripheral area. The shielding line is located in the peripheral area and between adjacent first touch wires and second touch wires. The shielding line includes a first wire segment and a second wire segment. The second wire segment includes a plurality of sub-shielding lines, the plurality of sub-shielding lines are electrically connected with the first wire segment at the same time, the plurality of sub-shielding lines extend in the same direction and are arranged at intervals, and the width of the area where the plurality of sub-shielding lines are located is greater than the width of the first wire segment.

Description

Technical Field

[0001] This disclosure relates to the field of touch technology, and in particular to a touch layer assembly and a touch display device. Background Technology

[0002] With the development of display technology, touch-enabled display devices are increasingly favored due to their ease of operation and superior user experience. A touch-enabled display device includes a touch-sensing layer and a display substrate. The touch-sensing layer is located on the light-emitting side of the display substrate to facilitate touch operation. Summary of the Invention

[0003] On one hand, a touch layer assembly is provided. The touch layer assembly includes a touch area and a peripheral area. The touch layer assembly includes: a plurality of first touch electrodes and a plurality of second touch electrodes, a plurality of first touch traces, a plurality of second touch traces, and a shielding line. The plurality of first touch electrodes and the plurality of second touch electrodes are all located in the touch area. The plurality of first touch traces are electrically connected to the plurality of first touch electrodes and extend to the peripheral area. The plurality of second touch traces are electrically connected to the plurality of second touch electrodes and extend to the peripheral area. The shielding line is located in the peripheral area and is located between adjacent first touch traces and second touch traces; the shielding line includes a first trace segment and a second trace segment; the second trace segment includes a plurality of sub-shielding lines, the plurality of sub-shielding lines are simultaneously electrically connected to the first trace segment, the plurality of sub-shielding lines extend in the same direction and are spaced apart from each other, and the width of the area where the plurality of sub-shielding lines are located is greater than the width of the first trace segment.

[0004] In some embodiments, the peripheral area includes a first fan-out area connected to a first side edge of the touch area; the first fan-out area is provided with a first second trace segment; each sub-shielding line in the first second trace segment extends in a direction away from the touch area.

[0005] In some embodiments, the first fan-out area is further provided with a first first trace segment; the first first trace segment extends along the first side edge of the touch area; in the first second trace segment, the end of each sub-shielding wire near the touch area is electrically connected to the first first trace segment.

[0006] In some embodiments, the width of the first first trace segment is 1.3 to 1.7 times the width of any one of the sub-shielding wires in the first second trace segment.

[0007] In some embodiments, the width of the area where the first second trace segment is located is 3 to 4.5 times the width of the first first trace segment.

[0008] In some embodiments, the touch area is generally rectangular and includes a first side edge, a second side edge, a third side edge, and a fourth side edge, wherein the first side edge is disposed opposite to the second side edge, the third side edge is disposed opposite to the fourth side edge, the length of the first side edge is equal to the length of the second side edge, the length of the third side edge is equal to the length of the fourth side edge, and the length of the first side edge is less than the length of the third side edge.

[0009] A portion of the plurality of first touch traces extends from the first side edge to the first fan-out area; another portion of the plurality of first touch traces extends from the second side edge and through the fourth side of the touch area to the first fan-out area; the plurality of second touch traces extend from the third side edge to the first fan-out area. The portion of the first touch traces located in the first fan-out area and the portion of the plurality of second touch traces located in the first fan-out area are located on opposite sides of the shielding line.

[0010] In some embodiments, at least one of the first touch traces located in a portion of the first fan-out area includes a first sub-touch line and a second sub-touch line connected to each other; the first sub-touch line extends in the same direction as the first first trace segment, and the second sub-touch line extends in the same direction as the first second trace segment.

[0011] At least one of the plurality of second touch traces is located in the portion of the first fan-out area, including a third sub-touch trace and a fourth sub-touch trace connected to each other; the third sub-touch trace extends in the same direction as the first first trace segment, and the fourth sub-touch trace extends in the same direction as the first second trace segment; wherein the first sub-touch trace and the third sub-touch trace are located on both sides of the first first trace segment; the second sub-touch trace and the fourth sub-touch trace are located on both sides of the first second trace segment.

[0012] In some embodiments, the width of the first first trace segment is 1.3 to 1.7 times the width of the first sub-touch line; the width of the first first trace segment is 2 to 6 times the width of the third sub-touch line.

[0013] And / or, the width difference between each sub-shielding line and the second sub-touch line in the first second wiring segment is less than or equal to 40% of the width of the second sub-touch line; the width difference between each sub-shielding line and the fourth sub-touch line in the first second wiring segment is less than or equal to 40% of the width of the fourth sub-touch line.

[0014] In some embodiments, the plurality of first touch electrodes extend along a first direction, the plurality of second touch electrodes extend along a second direction, the plurality of first touch electrodes and the plurality of second touch electrodes are intersected and insulated from each other; wherein, the first direction is parallel to the third side edge, and the second direction is parallel to the first side edge.

[0015] In some embodiments, the peripheral area includes a first fan-out area connected to a first side edge of the touch area, a bend area located on the side of the first fan-out area away from the touch area, and a lead-out area located on the side of the bend area away from the first fan-out area; the lead-out area is provided with a second second wiring segment; each sub-shielding line in the second second wiring segment extends in a direction away from the touch area.

[0016] In some embodiments, at least a portion of the second second routing segment gradually approaches the central axis of the touch area from one end near the touch area to the end away from the touch area.

[0017] In some embodiments, the lead-out area is further provided with a third second wiring segment, the third second wiring segment extending generally in a direction parallel to the first side edge, and one end of the plurality of sub-shielding lines in the third second wiring segment being connected to the ends of the plurality of sub-shielding lines in the second second wiring segment that are away from the touch area.

[0018] In some embodiments, the touch layer group further includes: a bonding area located on the side of the lead-out area away from the bending area; a grounding pin is provided on the bonding area.

[0019] The lead-out area is also provided with a fourth second wiring segment. The fourth second wiring segment extends in a direction away from the touch area. In the fourth second wiring segment, one end of multiple sub-shielding wires away from the touch area is connected to multiple grounding pins respectively, and the other end of multiple sub-shielding wires near the touch area is connected to the other end of multiple sub-shielding wires in the third second wiring segment respectively.

[0020] In some embodiments, the spacing between adjacent sub-shielded wires in the fourth second wiring segment is greater than the spacing between adjacent sub-shielded wires in the third second wiring segment.

[0021] In some embodiments, the touch layer group further includes: a bonding area located on the side of the lead-out area away from the bending area; a grounding pin is provided on the bonding area.

[0022] The lead-out area is also provided with a second first trace segment. The second first trace segment extends in a direction away from the touch area. One end of the second first trace segment is connected to the ground pin, and the other end is connected to each of the sub-shield lines in the third second trace segment.

[0023] In some embodiments, within the lead-out area, the width difference between the second first trace segment and any of the sub-shields is less than or equal to 40% of the width of the sub-shield.

[0024] In some embodiments, within the lead-out area: the width difference between any sub-shielding line and the first touch trace is less than or equal to 40% of the width of the first touch trace; and / or, the width difference between any sub-shielding line and the second touch trace is less than or equal to 40% of the width of the second touch trace.

[0025] In some embodiments, the width of the area containing all sub-shielded wires in the second trace segment is 3 to 8 times the width of the first trace segment.

[0026] In some embodiments, each of the plurality of first touch electrodes is an integral structure; each of the plurality of second touch electrodes includes a plurality of touch sub-electrodes and at least one bridging portion; two adjacent touch sub-electrodes of the second touch electrodes are separated by a first touch electrode.

[0027] The touch layer group includes: an insulating layer and two conductive layers, the insulating layer being located between the two conductive layers; wherein, the plurality of first touch electrodes and the plurality of touch sub-electrodes are located in one conductive layer, the plurality of bridging portions are located in another conductive layer, and one bridging portion electrically connects two adjacent touch sub-electrodes through a via on the insulating layer.

[0028] In some embodiments, at least one sub-shielding line in the second trace segment is a single-layer line or a double-layer line; when multiple sub-shielding lines in the second trace segment are all single-layer lines: the multiple sub-shielding lines are located in the same conductive layer; or, the multiple sub-shielding lines are located in two conductive layers respectively, and at least one sub-shielding line located in one conductive layer overlaps at least partially with at least one sub-shielding line located in the other conductive layer in a direction perpendicular to the touch layer group.

[0029] In some embodiments, the touch layer group includes: a plurality of first-type touch traces and a plurality of second-type touch traces, wherein the plurality of first-type touch traces and the plurality of second-type touch traces are respectively disposed on two conductive layers, and the first-type touch traces and the second-type touch traces overlap at least partially in a direction perpendicular to the touch layer group, wherein the plurality of first-type touch traces includes a portion of first-type touch traces and a portion of second-type touch traces, and the plurality of second-type touch traces includes another portion of first-type touch traces and another portion of second-type touch traces.

[0030] On the other hand, a touch display device is provided. The touch display device includes: a display substrate and a touch layer assembly as described in any of the above embodiments. The touch layer assembly is located on the display surface of the display substrate; wherein the display substrate includes a display area; and the edge of the touch area of ​​the touch layer assembly substantially coincides with the edge of the display area.

[0031] In some embodiments, when the touch layer group includes a first second trace segment located in the first fan-out area and a second second trace segment located in the lead-out area: the display substrate is provided with a plurality of jumpers corresponding to the bending area; a sub-shielded wire in the first second trace segment is electrically connected to a sub-shielded wire in the second second trace segment through at least one jumper. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0033] Figure 1 This is a structural diagram of a touch display device according to some embodiments;

[0034] Figure 2A This is a structural diagram of a touch layer assembly according to some embodiments;

[0035] Figure 2B This is a structural diagram of a touch layer assembly according to some embodiments;

[0036] Figure 3 This is a structural diagram of a touch layer assembly according to some embodiments;

[0037] Figure 4 This is a structural diagram of a touch layer assembly according to some embodiments;

[0038] Figure 5 for Figure 4 A magnified view of a section at point G1;

[0039] Figure 6A This is a structural diagram of a touch layer assembly according to some embodiments;

[0040] Figure 6B This is a structural diagram of a touch layer assembly according to some embodiments;

[0041] Figure 7A This is a structural diagram of a touch layer assembly according to some embodiments;

[0042] Figure 7B This is a structural diagram of a touch layer assembly according to some embodiments;

[0043] Figure 7C This is a structural diagram of a touch layer assembly according to some embodiments;

[0044] Figure 7D for Figure 7C A magnified view of a section at point G2;

[0045] Figure 8A for Figure 2B Cross-sectional view at point II';

[0046] Figure 8B for Figure 2B Cross-sectional view at JJ';

[0047] Figure 8C for Figure 2B Cross-sectional view at JJ';

[0048] Figure 9 This is a structural diagram of a touch display device according to some embodiments;

[0049] Figure 10 This is a structural diagram of a touch display device according to some embodiments;

[0050] Figure 11 This is a structural diagram of a touch display device according to some embodiments. Detailed Implementation

[0051] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0052] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "some embodiments," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0053] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0054] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0055] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0056] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0057] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when”, “in the event of”, “in response to determination”, or “in response to detection”. Similarly, depending on the context, the phrase “if it is determined that…” or “if [the stated condition or event] is detected” may optionally be interpreted as meaning “in the event of determination that…”, “in response to determination that…”, “when [the stated condition or event] is detected”, or “in response to the detection of [the stated condition or event]”.

[0058] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0059] As used herein, “approximately” or “about” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0060] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0061] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0062] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0063] Some embodiments of this disclosure provide a touch display device 100. The touch display device 100 can be a liquid crystal display (LCD) with touch functionality, or it can be a self-emissive display device with touch functionality, such as an electroluminescent display device or a photoluminescent display device with touch functionality. When the touch display device 100 is an electroluminescent display device with touch functionality, it can be an organic light-emitting diode (OLED) display device or a quantum dot light-emitting diode (QLED) display device. When the touch display device 100 is a photoluminescent display device with touch functionality, it can be a quantum dot photoluminescent display device. This disclosure does not limit the type of the touch display device 100.

[0064] Please see Figure 1 The touch display device 100 involved in the embodiments of this disclosure may be, for example, a tablet computer, a mobile phone, an e-reader, a remote control, a personal computer (PC), a laptop computer, a personal digital assistant (PDA), an in-vehicle device, a smart TV, a wearable device, a television set, etc.

[0065] Please see Figure 2A and Figure 2B The touch display device 100 includes a touch layer group 200, which can detect the touch position of a finger and input touch commands to the touch display device 100.

[0066] Some embodiments of this disclosure provide a touch layer group 200. See also... Figure 2A and Figure 2BThe touch layer group 200 includes a touch area AA and a peripheral area BB.

[0067] Please see Figure 2A and Figure 2B The touch layer group 200 includes: multiple first touch electrodes 21, multiple second touch electrodes 22, multiple first touch traces 23, multiple second touch traces 24, and shielding lines 25.

[0068] First, the first touch electrode 21 and the second touch electrode 22 will be introduced.

[0069] In some embodiments, see Figure 2A Multiple first touch electrodes 21 extend along a first direction Y, and multiple second touch electrodes 22 extend along a second direction X. The multiple first touch electrodes 21 and multiple second touch electrodes 22 are arranged intersecting each other and are insulated from each other.

[0070] The shape and number of the first touch electrode 21 and the second touch electrode 22 are not limited. Each first touch electrode 21 and each second touch electrode 22 can be selected according to the actual needs, as long as the position of the touch point can be determined by detecting the capacitance.

[0071] For example, please refer to Figure 2A Both the first touch electrode 21 and the second touch electrode 22 are strip-shaped, and in this case, there is an intersection area between the first touch electrode 21 and the second touch electrode 22, that is, there is a certain overlap area between the first touch electrode 21 and the second touch electrode 22. Since the first touch electrode 21 and the second touch electrode 22 are insulated from each other, for example, an insulating layer is provided between the first touch electrode 21 and the second touch electrode 22, and the insulation between the first touch electrode 21 and the second touch electrode 22 is achieved through the insulating layer. Therefore, a capacitor is formed in the intersection area of ​​the first touch electrode 21 and the second touch electrode 22. When a conductor (e.g., a finger) touches the intersection area, the original capacitance of that area is changed; by detecting the change in capacitance, the position of the touch point is obtained.

[0072] In other examples, please refer to Figure 2B Multiple first touch electrodes 21 and multiple second touch electrodes 22 are located in the touch area AA. The multiple first touch electrodes 21 and multiple second touch electrodes 22 are staggered in the first direction Y and the second direction X and are arranged in the same layer, with the first direction Y intersecting the second direction X. In some examples, the first direction Y is perpendicular to the second direction X.

[0073] In some embodiments, the second touch electrode 22 further includes a plurality of touch sub-electrodes 221 and a bridging portion 22, wherein two adjacent touch sub-electrodes 221 in the second direction X are electrically connected through the bridging portion 22. The plurality of first touch electrodes 21 and the plurality of touch sub-electrodes 221 are formed simultaneously using a patterning process (e.g., including exposure, development, etching, etc.), and are made of the same layer and material. Although the first touch electrodes 21 and the touch sub-electrodes 221 are disposed in the same layer, they are insulated from each other.

[0074] Please refer to Figure 2B Multiple first touch electrodes 21 are divided into multiple columns along a first direction Y. Multiple first touch electrodes 21 located in the same column are coupled to each other, and the first touch electrodes 21 in adjacent columns are insulated from each other. For example, along the first direction Y, multiple first touch electrodes 21 in a first column C1 are coupled to each other, and multiple first touch electrodes 21 in a first column C1 and multiple first touch electrodes 21 in a second column C2 are insulated from each other. Each column of first touch electrodes 21 can, for example, serve as a first channel for transmitting a first touch signal.

[0075] Multiple second touch electrodes 22 are divided into multiple rows along the second direction X. Multiple second touch electrodes 22 in the same row are coupled to each other, and the second touch electrodes 22 in adjacent rows are insulated from each other. For example, along the second direction X, multiple second touch electrodes 22 in the first row D1 are coupled to each other, and the multiple second touch electrodes 22 in the first row D1 and the multiple second touch electrodes 22 in the second row D2 are insulated from each other. Each row of second touch electrodes can, for example, serve as a second channel for transmitting a second touch signal.

[0076] In some embodiments, both the first touch electrode 21 and the second touch electrode 22 are grid-like structures.

[0077] The first touch electrode 21 can be Tx (transmit, touch transmitting electrode), and the second touch electrode 22 can be Rx (teceive, touch receiving electrode), or the first touch electrode 21 can be Rx and the second touch electrode 22 can be Tx. The embodiments of this disclosure do not limit this.

[0078] Please see Figure 2A and Figure 2BThe touch layer group 200 also includes multiple first touch traces 23 and multiple second touch traces 24. The multiple first touch traces 23 are electrically connected to multiple first touch electrodes 21 and extend to the peripheral area BB. The multiple second touch traces 24 are electrically connected to multiple second touch electrodes 22 and extend to the peripheral area BB. Specifically, one first touch trace 23 is electrically connected to a row of first touch electrodes 21, and one second touch trace 24 is electrically connected to a row of second touch electrodes 22.

[0079] The touch layer group 200 also includes a shielding line 25, which is located in the peripheral area BB and between the adjacent first touch trace 23 and second touch trace 24.

[0080] The first touch trace 23 is used to transmit a first touch signal, and the second touch trace 24 is used to transmit a second touch signal. The signals transmitted by the first touch trace 23 and the second touch trace 24 are different. The first touch signal in the first touch trace 23 will interfere with the second touch signal in the second touch trace 24, and similarly, the second touch signal in the second touch trace 24 will interfere with the first touch signal in the first touch trace 23.

[0081] This disclosure separates the first touch trace 23 and the second touch trace 24 by setting a shielding line 25 between adjacent first touch trace 23 and second touch trace 24, thereby avoiding mutual interference between the first touch trace 23 and the second touch trace 24.

[0082] A gap is formed between the shielding line 25 and the first touch trace 23 to prevent short circuit between the first touch trace 23 and the shielding line 25. A gap is also formed between the shielding line 25 and the second touch trace 24 to prevent short circuit between the second touch trace 24 and the shielding line 25.

[0083] In one implementation, the width of the shielding line 25 is consistent throughout. The peripheral area BB of the touch layer group 200 may include multiple regions, such as the first fan-out area B10, the bending area B20, and the lead-out area B30, as detailed in [reference needed]. Figure 3 , Figure 3The structure of a portion of the peripheral area BB is shown. Since the wiring space varies in different areas, the wiring requirements differ. When the width of the shielding line 25 is uniform throughout, it cannot meet the wiring needs of different areas. For example, when the shielding line 25 is wider, for smaller areas (such as the first fan-out area B10), the width of the touch lines (including the first touch trace 23 and the second touch trace 24) within the first fan-out area B10 needs to be smaller. This leads to a greater difference in linewidth between the shielding line 25 and the touch lines, reducing etching uniformity. Therefore, when the width of the shielding line 25 is uniform throughout, it cannot meet the wiring requirements of different areas. Furthermore, the spacing between touch lines and between touch lines and the shielding line 25 within the first fan-out area B10 will also be smaller, easily leading to increased interference between touch lines and between touch lines and the shielding line 25, and increasing the likelihood of coupling. When the shielding line 25 is set narrower, for areas with larger space (such as the lead-out area B30), the width of the touch line within the lead-out area B30 can be set larger to reduce the resistance of the touch line. However, in this case, the shielding line 25 is set too narrow, resulting in insufficient shielding effect and causing interference between the first touch trace 23 and the second touch trace 24.

[0084] In some embodiments of the touch layer group 200 provided in this disclosure, please refer to Figure 4 The shielding line 25 includes a first routing segment 251 and a second routing segment 252, the width of the second routing segment 252 being greater than the width of the first routing segment 251.

[0085] In smaller areas (such as the first fan-out area B10), a first trace segment 251 can be installed. Because the width of the first trace segment 251 is small, the difference in width between the first trace segment 251 and the touch lines within the first fan-out area B10 is smaller, thus improving etching uniformity. Furthermore, the first fan-out area B10 provides more space for the touch lines, allowing for a wider touch line, further reducing the linewidth difference between the shielding line 25 and the touch lines, thus improving etching uniformity. In addition, a wider touch line also reduces the resistance of the touch lines. Moreover, the larger spacing between touch lines and between touch lines and the shielding line 25 within the first fan-out area B10 reduces interference between touch lines and between touch lines and the shielding line 25, and makes coupling less likely.

[0086] In areas with ample space (such as the lead-out area B30), a second routing segment 252 is installed. Because the lead-out area B30 has ample space, the installation of the second routing segment 252 will not compress the space available for the touch cable. Furthermore, it improves the shielding effect of the shielded wire 25 in areas with ample space.

[0087] In summary, by setting up a first cabling segment 251 and a second cabling segment 252 with different widths within the surrounding area BB, the cabling needs of different areas can be met.

[0088] Please see Figure 4 The second wiring segment 252 includes multiple sub-shielded wires 2521, which are simultaneously electrically connected to the first wiring segment 251. These multiple sub-shielded wires 2521 are arranged in the same direction (e.g., ...). Figure 4 The multiple sub-shielded lines 2521 extend in the Y direction and are spaced apart from each other, with the width of the area containing them being greater than the width of the first trace segment 251. For example, as... Figure 5 As shown, within the first fan-out area B10, the width of the first trace segment 251 is H1, and the width of the area where multiple sub-shielded lines 2521 are located is H3, where H3 > H1.

[0089] The second wiring segment 252 includes multiple sub-shielded wires 2521, with gaps between adjacent sub-shielded wires 2521, thus allowing adjacent sub-shielded wires 2521 to be spaced apart.

[0090] The shielding line 25 is divided into multiple sub-shielding lines 2521 in the second trace segment 252. The difference in line width between the sub-shielding line 2521 and the first touch trace 23, as well as between the sub-shielding line 2521 and the second touch trace 24, is small, thus improving the uniformity of etching.

[0091] Furthermore, traces with different linewidths generate different static electricity and different mutual capacitances with adjacent traces, resulting in different signal environments. Therefore, in some embodiments provided in this disclosure, the difference in signal environment between the first touch trace 23 near the sub-shield line 2521 and the first touch trace 23 away from the sub-shield line 2521 is small, and consequently, the difference in touch electrical properties between the first touch trace 23 near the sub-shield line 2521 and the first touch trace 23 away from the sub-shield line 2521 is small. Similarly, the difference in touch electrical properties between the second touch trace 24 near the sub-shield line 2521 and the second touch trace 24 away from the sub-shield line 2521 is small, thereby improving the touch accuracy of the touch layer group 200.

[0092] In some embodiments, please refer to Figure 3 The peripheral area BB includes a first fan-out area B10 connected to the first side edge A1 of the touch area AA. On the side of the first fan-out area B10 furthest from the touch area AA, a bending area B20, a lead-out area B30, and a bonding area B40 are sequentially provided. The bonding area B40 contains a grounding pin 26. Figure 3 Ground pin 26 is not shown in the diagram; please refer to [reference needed]. Figure 6A and Figure 6BThe shielding wire 25 can pass through the first fan-out area B10 and be electrically connected to the grounding pin 26. Since the grounding pin 26 is grounded, the shielding wire 25 can be grounded, thereby dissipating the static electricity accumulated in the shielding wire 25.

[0093] In some embodiments, please refer to Figure 4 The first fan-out area B10 is provided with a first second routing segment 252A, and each sub-shielded line 2521 in the first second routing segment 252A extends in a direction away from the touch area AA.

[0094] In this case, each sub-shielded wire 2521 in the first second trace segment 252A extends away from the touch area AA, that is, the first second trace segment 252A extends towards the ground pin 26 (e.g., Figure 6A and Figure 6B The shield 25 extends in the direction shown, so that the shield 25 gradually approaches the ground pin 26.

[0095] In some examples, the direction in which the touch area AA points to the first fan-out area B10 is a first designated direction, and this first designated direction is parallel to the first direction Y. Please refer to [link / reference]. Figure 4 Arrow F1 points in the direction of the first specified direction. The first second routing segment 252A can extend approximately along the first specified direction F1. The first second routing segment 252A includes multiple sub-shielding lines 2521A, and each sub-shielding line 2521A in the first second routing segment 252A extends approximately along the first specified direction F1. In the embodiments of this disclosure, "extending approximately along the first specified direction F1" means that the angle between the extension direction of each sub-shielding line 2521A in the first second routing segment 252A and the first specified direction F1 is within 5°.

[0096] In some embodiments, please refer to Figure 4 and Figure 5 The first fan-out area B10 is also provided with a first first wiring segment 251A; the first first wiring segment 251A extends along the first side edge A1 of the touch area AA. In the first second wiring segment 252A, the ends of each sub-shielded wire 2521A near the touch area AA are electrically connected to the first first wiring segment 251A.

[0097] In some examples, the first fan-out area B10 can serve as at least a portion of the border of the touch layer group 200. In order to achieve a narrow border, the size of the first fan-out area B10 in the first direction Y is limited.

[0098] By setting a first first trace segment 251A with a smaller width within the first fan-out area B10, the size of the first fan-out area B10 in the first direction Y can be reduced, thereby reducing the size of the border of the touch layer group 200.

[0099] In some examples, the first side edge A1 extends along the second direction X.

[0100] In some embodiments, please refer to Figure 5 The width H1 of the first first routing segment 251A is 1.3 to 1.7 times the width H2 of any sub-shielding line 2521A in the first second routing segment 252A.

[0101] In some examples, please refer to Figure 5 The width of the first first routing segment 251A is the dimension of the first first routing segment 251A in the first direction Y, and the width H2 of the neutron shielding line 2521A in the first second routing segment 252A is the dimension of the neutron shielding line 2521A in the second direction X, wherein 1.3H2≤H1≤1.7H2.

[0102] The width H1 of the first routing segment 251A is greater than the width H2 of any sub-shielding line 2521A in the first second routing segment 252A, and 1.3H2≤H1≤1.7H2. This avoids an excessive difference in width H2 between the first routing segment 251A and any sub-shielding line 2521A in the first second routing segment 252A (e.g., greater than 1.7 times), which would result in an excessively large width H1 of the first routing segment 251A occupying a large space in the first direction Y of the first fan-out area B10. Therefore, it helps to reduce the size of the first fan-out area B10 in the first direction Y. In addition, it also avoids an excessively small difference in width H1 between the first routing segment 251A and any sub-shielding line 2521A in the first second routing segment 252A (e.g., less than 1.3 times), which would result in an excessively small width H1 of the first routing segment 251A, reducing the shielding effect.

[0103] In some examples, the width H1 of the first first trace segment 251A is 1.4 to 1.6 times the width H2 of any sub-shield line 2521A in the first second trace segment 252A.

[0104] For example, the width H1 of the first first trace segment 251A is 1.5 times the width H2 of any one of the sub-shield lines 2521A in the first second trace segment 252A.

[0105] In particular, the width H2 of each sub-shielded wire 2521A in the first second wiring segment 252A can be equal.

[0106] In some examples, the width H1 of the first first trace segment 251A can be in the range of 25μm ≤ H1 ≤ 31μm. For example, the width H1 of the first first trace segment 251A is 28μm.

[0107] In some examples, the width H2 of the neutron shielding line 2521A in the first second trace segment 252A can be in the range of 17μm≤H2≤23μm. For example, the width H2 of the neutron shielding line 2521A in the first second trace segment 252A is 20μm.

[0108] In some embodiments, the width H3 of the area where the first second trace segment 252A is located is 3 to 4.5 times the width H1 of the first first trace segment 251A.

[0109] Please see Figure 5 The width H3 of the area containing the first second trace segment 252A is the dimension of that area in the second direction X, where 3H1≤H3≤4.5H1. This avoids an excessively large width difference (e.g., greater than 4.5 times) between the area containing the first second trace segment 252A and the first first trace segment 251A, which would result in an excessively large width H3 for the area containing the first second trace segment 252A, occupying a large space in the second direction X of the first fan-out area B10. Furthermore, it also avoids an excessively small width difference (e.g., less than 3 times) between the width H3 of the area containing the first second trace segment 252A and the width H1 of the first first trace segment 251A, which would result in an excessively small width H3 for the area containing the first second trace segment 252A, reducing the shielding effect.

[0110] In some examples, the width H3 of the area containing the first second trace segment 252A is 3.5 to 4.1 times the width H1 of the first first trace segment 251A. For example, the width H3 of the area containing the first second trace segment 252A is 3.7 to 3.8 times the width H1 of the first first trace segment 251A.

[0111] In some examples, the width H3 of the region containing the first second trace segment 252A can be in the range of 102μm ≤ H3 ≤ 110μm. For example, the width H3 of the region containing the first second trace segment 252A is 106μm.

[0112] A gap is formed between two adjacent sub-shielded wires 2521. Please refer to [link / reference]. Figure 5 In the first second trace segment 252A, the gap between two adjacent sub-shielded lines 2521A is H4. In some examples, the value of H4 ranges from 20μm to 26μm; for example, H4 is 23μm.

[0113] The above describes the location of the shielding line 25 within the first fan-out area B10. Besides the shielding line 25, the first touch trace 23 and the second touch trace 24 also pass through the first fan-out area B10. The following describes the locations of the first touch trace 23 and the second touch trace 24 within the first fan-out area B10.

[0114] In some embodiments, please refer to Figure 2B The touch area AA is roughly rectangular and includes a first side edge A1, a second side edge A2, a third side edge A3, and a fourth side edge A4. The first side edge A1 is positioned opposite to the second side edge A2, and the third side edge A3 is positioned opposite to the fourth side edge A4. The length of the first side edge A1 is equal to the length of the second side edge A2, the length of the third side edge A3 is equal to the length of the fourth side edge A4, and the length of the first side edge A1 is less than the length of the third side edge A3.

[0115] Wherein, the first direction Y is parallel to the third side edge A3, and the second direction X is parallel to the first side edge A1.

[0116] The touch area AA is roughly rectangular. "Roughly rectangular" can mean a standard rectangular frame shape; it can also mean that the included angle between adjacent sides is approximately right angle (e.g., the included angle between adjacent sides is 85° to 95°); and / or, that each side is approximately a straight edge, forming an approximate standard rectangular frame shape. And / or, rounded corners are formed between two adjacent edges.

[0117] Please see Figure 2B A portion of the first touch traces 23A, one of the multiple first touch traces 23, is led out through the first side edge A1 to the first fan-out area B10; another portion of the multiple first touch traces 23B, one of the multiple first touch traces 23, is led out through the second side edge A2 and extends through the fourth side of the touch area AA to the first fan-out area B10.

[0118] Among them, a portion of the first touch trace 23A and another portion of the first touch trace 23B are both whole traces.

[0119] One end of a portion of the first touch trace 23A is connected to the first touch electrode 21 via the first side edge A1, and the other end is connected to the first pin 27. A portion of the first touch trace 23A extends from the first fan-out area B10 towards the first pin 27 on the bonding area B40. Figure 3 The first pin 27 is not shown in the diagram; please refer to [reference needed]. Figure 6A and Figure 6B .

[0120] Another portion of the first touch trace 23B has one end connected to the first touch electrode 21 via the second side edge A2, and the other end connected to the first pin 27. The trace of this other portion of the first touch trace 23B extends sequentially through the fourth side of the touch area AA, the first fan-out area B10, and towards the first pin 27 on the bonding area B40. The fourth side of the touch area AA is the portion of the peripheral area BB adjacent to the fourth side edge A4. Figure 3 The first pin 27 is not shown in the diagram; please refer to [reference needed]. Figure 6A and Figure 6B .

[0121] In some examples, a portion of the first touch traces 23A contains multiple first touch traces, and another portion of the first touch traces 23B contains multiple first touch traces. Specifically, a portion of the first touch traces 23A is connected to each column of first touch electrodes 21 via a first side edge A1, while the other portion of the first touch traces 23B is connected to each column of first touch electrodes 21 via a second side edge A2.

[0122] Multiple second touch traces 24 are led out from the third side edge A3 to the first fan-out area B10.

[0123] One end of the second touch trace 24 is connected to the second touch electrode 22 via the third side edge A3, and the other end is connected to the second pin 28. The trace 24 extends sequentially through the third side of the touch area AA, the first fan-out area B10, the bending area B20, and the lead-out area B30 to electrically connect with the second pin 28 on the bonding area B40. Multiple second touch traces 24 are connected to each row of second touch electrodes 22 via the third side edge A3. The third side of the touch area AA is the portion of the peripheral area BB adjacent to the third side edge A3.

[0124] A portion of the structure of each of the first touch lines 23A is located within the first fan-out area B10, and a portion of the structure of each of the second touch lines 24 is located within the first fan-out area B10.

[0125] Within the first fan-out area B10, a portion of the first touch traces 23A and multiple second touch traces 24 are located within the first fan-out area B10, situated on either side of the shielding line 25. Therefore, within the first fan-out area B10, the shielding line 25 can prevent a portion of the first touch traces 23A and the second touch traces 24 from interfering with each other.

[0126] In some embodiments, please refer to Figure 5 At least one of the first touch lines 23A is located in a portion of the first fan-out area B10, including a first sub-touch line 23A1 and a second sub-touch line 23A2 that are connected to each other.

[0127] Among them, the first sub-touch line 23A1 extends in the same direction as the first first routing segment 251A. At this time, the first sub-touch line 23A1 and the first first routing segment 251A are set in parallel.

[0128] The second sub-touch line 23A2 extends in the same direction as the first second wiring segment 252A. At this time, the second sub-touch line 23A2 is arranged parallel to the multiple sub-shielding lines 25 in the first second wiring segment 252A.

[0129] At least one of the multiple second touch lines 24 is located in a portion of the first fan-out area B10, including a third sub-touch line 243 and a fourth sub-touch line 244 that are connected to each other.

[0130] The third sub-touch line 243 extends in the same direction as the first first routing segment 251A. At this time, the third sub-touch line 243 is set parallel to the first first routing segment 251A.

[0131] The fourth sub-touch line 244 extends in the same direction as the first second routing segment 252A. At this time, the fourth sub-touch line 244 is set parallel to the first second routing segment 252A.

[0132] Among them, the first sub-touch line 23A1 and the third sub-touch line 243 are located on both sides of the first first wiring segment 251A.

[0133] In some examples, please refer to Figure 4 In a portion of the first touch traces 23A, the first sub-touch trace 23A1 is located between the first trace segment 251A and the touch area AA, while the third sub-touch trace 243 in the multiple second touch traces 24 is located on the side of the first trace segment 251A away from the touch area AA. At this time, the multiple first sub-touch traces 23A1, the first trace segment 251A, and the third sub-touch trace 243 are sequentially arranged along the first designated direction F1.

[0134] Please see Figure 4 and Figure 5 The second sub-touch line 23A2 and the fourth sub-touch line 244 are located on both sides of the first second wiring segment 252A.

[0135] In some examples, please refer to Figure 5 The second sub-touch line 23A2, the first second routing segment 252A, and the fourth sub-touch line 244 are sequentially arranged along the second specified direction. See also... Figure 5 The direction pointed to by arrow F2 is the second specified direction, and the direction from the fourth side edge A4 to the third side edge A3 is the second specified direction F2.

[0136] In some embodiments, the width H1 of the first first trace segment 251A is 1.3 to 1.7 times the width H5 of the first sub-touch line 23A1.

[0137] The width H5 of the first sub-touch line 23A1 is the dimension of the first sub-touch line 23A1 in the first direction Y. Specifically, 1.3H5 ≤ H1 ≤ 1.7H5 avoids an excessively large width difference (e.g., greater than 1.7 times) between the first first trace segment 251A and the first sub-touch line 23A1, which would result in poor etching uniformity. Furthermore, it also avoids an excessively small width difference (e.g., less than 1.3 times) between the width H1 of the first first trace segment 251A and the width H5 of the first sub-touch line 23A1, which would cause the width H1 of the first first trace segment 251A to be too small, reducing the shielding effect.

[0138] In some examples, the width H1 of the first first trace segment 251A is 1.4 to 1.6 times the width H5 of the first sub-touch line 23A1.

[0139] For example, the width H1 of the first first trace segment 251A is 1.5 times the width H5 of the first sub-touch line 23A1.

[0140] In some examples, the width H5 of the first sub-touch line 23A1 can be in the range of 17μm ≤ H5 ≤ 23μm. For example, H5 = 20μm.

[0141] In some embodiments, the width H1 of the first first trace segment 251A is 2 to 6 times the width H6 of the third sub-touch line 243.

[0142] The width H6 of the third sub-touch line 243 is the dimension of the third sub-touch line 243 in the first direction Y. Specifically, 2H6 ≤ H1 ≤ 6H6, avoiding an excessively large width difference (e.g., greater than 6 times) between the first trace segment 251A and the third sub-touch line 243, which would result in poor etching uniformity. Furthermore, it also avoids an excessively small width difference (e.g., less than 2 times) between the width H1 of the first trace segment 251A and the width H6 of the third sub-touch line 243, which would reduce the shielding effect.

[0143] In some examples, the width H1 of the first first trace segment 251A is 2.3 to 5.6 times the width H6 of the third sub-touch line 243.

[0144] In some examples, the width H6 of the third sub-touch line 243 can be in the range of 5μm≤H6≤12μm.

[0145] In some examples, the width H5 of the first sub-touch line 23A1 is greater than the width H6 of the third sub-touch line 243.

[0146] In some examples, the number of columns of the first touch electrode 21 is less than the number of rows of the second touch electrode 22. Therefore, the number of first touch traces 23A in a portion of the first touch traces 23A is less than the number of second touch traces 24. Consequently, within the first fan-out area B10, the number of first sub-touch lines 23A1 is less than the number of third sub-touch lines 243. Therefore, the width H6 of the third sub-touch line 243 is less than the width H5 of the first sub-touch line 23A1, which can reduce the width H6 of the third sub-touch line 243. The smaller width H6 of the third sub-touch line 243 can reduce the size of the area where multiple third sub-touch lines 243 are located in the first direction Y, which is beneficial for achieving a narrow bezel of the touch layer group 200.

[0147] In some examples, the width of the second touch trace 24 located on the third side of the touch area AA is smaller. Therefore, the area occupied by the second touch trace 24 on the third side of the touch area AA has a smaller size in the second direction X, which is advantageous for achieving a narrow bezel of the touch layer group 200. The third side of the touch area AA is the portion of the peripheral area BB adjacent to the third side edge A3.

[0148] In some embodiments, the width difference between each sub-shielding line 2521A and the second sub-touch line 23A2 in the first second wiring segment 252A is less than or equal to 40% of the width H7 of the second sub-touch line 23A2.

[0149] In some examples, the width H7 of the second sub-touch line 23A2 can be greater than, equal to or less than the width H2 of each sub-shielding line 2521A in the first second routing segment 252A.

[0150] The difference between the width H7 of the second sub-touch line 23A2 and the width H2 of each sub-shielding line 2521A in the first second trace segment 252A is less than or equal to 0.4H7. This can prevent the difference between the width H7 of the second sub-touch line 23A2 and the width H2 of each sub-shielding line 2521A in the first second trace segment 252A from being too large (e.g., exceeding 0.4H7), which would result in poor etching uniformity.

[0151] In some examples, the width difference between each sub-shielding line 2521A and the second sub-touch line 23A2 in the first second trace segment 252A is less than or equal to 20% of the width H7 of the second sub-touch line 23A2. For example, the width H7 of the second sub-touch line 23A2 is equal to the width H2 of each sub-shielding line 2521A in the first second trace segment 252A.

[0152] In some examples, the width H7 of the second sub-touch line 23A2 ranges from 17μm to 23μm. For example, H7 = 20μm.

[0153] In some examples, the width H2 of each sub-shielding line 2521A in the first second trace segment 252A ranges from 17μm to 23μm. For example, H2 = 20μm.

[0154] In some embodiments, the width difference between each sub-shielding line 2521A in the first second wiring segment 252A and the fourth sub-touch line 244 is less than or equal to 40% of the width of the fourth sub-touch line 244.

[0155] In some examples, the width H8 of the fourth sub-touch line 244 can be greater than, equal to or less than the width H2 of each sub-shielding line 2521A in the first second routing segment 252A.

[0156] The difference between the width H8 of the fourth sub-touch line 244 and the width H2 of each sub-shielding line 2521A in the first second trace segment 252A is less than or equal to 0.4H8. This can prevent the difference between the width H8 of the fourth sub-touch line 244 and the width H2 of each sub-shielding line 2521A in the first second trace segment 252A from being too large (e.g., exceeding 0.4H8), which would result in poor etching uniformity.

[0157] In some examples, the width difference between each sub-shielding line 2521A in the first second trace segment 252A and the fourth sub-touch line 244 is less than or equal to 20% of the width H8 of the fourth sub-touch line 244. For example, the width H8 of the fourth sub-touch line 244 is equal to the width H2 of each sub-shielding line 2521A in the first second trace segment 252A.

[0158] In some examples, the width H8 of the fourth sub-touch line 244 ranges from 17μm to 23μm. For example, H8 = 20μm.

[0159] In some embodiments, the width H7 of the second sub-touch line 23A2, the width H2 of each sub-shielding line 2521A in the first second wiring segment 252A, and the width H8 of the fourth sub-touch line 244 are equal, i.e., H7 = H2 = H8.

[0160] In some examples, the distance between the first sub-touch line 23A1 and the first first trace 251A, the distance between the third sub-touch line 243 and the first first trace 251A, the distance between two adjacent first sub-touch lines 23A1, and the distance between two adjacent third sub-touch lines 243 are equal.

[0161] In some examples, the distance between the first sub-touch line 23A1 and the first first trace segment 251A is greater than or equal to 5μm and less than or equal to 7μm. For example, the distance between the first sub-touch line 23A1 and the first first trace segment 251A is 6μm.

[0162] In some embodiments, please refer to Figure 4 Multiple virtual traces 29 are also provided within the first fan-out area B10. These virtual traces 29 are respectively located on the side of the first touch trace 23 furthest from the shielding line 25 and on the side of the second touch trace 24 furthest from the shielding line 25. By providing virtual traces 29, the etching uniformity of the first touch trace 23 and the second touch trace 25 can be improved.

[0163] The above describes the locations of the shielding line 25, the first touch line 23, and the second touch line 24 in the first fan-out area B10. The following describes the locations of the shielding line 25, the first touch line 23, and the second touch line 24 in the lead-out area B30.

[0164] In some embodiments, please refer to Figure 3 The peripheral area BB includes a first fan-out area B10 connected to the first side edge A1 of the touch area AA, a bent area B20 located on the side of the first fan-out area B10 away from the touch area AA, and an outgoing area B30 located on the side of the bent area B20 away from the first fan-out area B10.

[0165] Please see Figure 6A and Figure 6B The lead-out area B30 is provided with a second second wiring segment 252B; each sub-shielding line 2521B in the second second wiring segment 252B extends in a direction away from the touch area AA.

[0166] In the second second routing segment 252B, the extension direction of each sub-shielding line 2521B can be the same as the first specified direction F1, or it can form a specified angle with the first specified direction F1.

[0167] In some examples, please refer to Figure 6A and Figure 6B In the second second wiring segment 252B, the end of each sub-shielded wire 2521B closest to the touch area AA is electrically connected to the end of each shielded wire 2521A in the first second wiring segment 252A furthest from the touch area AA. Figure 6A and Figure 6B The individual shielding wires 2521A in the first second routing segment 252A are not shown in the diagram. Please refer to [reference needed]. Figure 4 .

[0168] In some examples, please refer to Figure 6A and Figure 6B The number of sub-shielded wires 2521B and 2521A is the same. Therefore, multiple sub-shielded wires 2521B correspond one-to-one with multiple sub-shielded wires 2521A and are electrically connected. Figure 6A and Figure 6B The sub-shielded cable 2521A is not shown in the image; please refer to [reference needed]. Figure 4 .

[0169] In some embodiments, at least a portion of the second second trace segment 252B gradually approaches the central axis of the touch area AA from one end near the touch area AA to the end away from the touch area AA. The direction from the end near the touch area AA to the end away from the touch area AA is the first designated direction F1. Therefore, at least a portion of the second second trace segment 252B gradually approaches the central axis CA of the touch area AA along the first designated direction F1.

[0170] In some examples, the central axis CA of the touch area AA extends along the first direction Y, and the central axis CA of the touch area AA is the centerline of the touch area AA in the second direction X. The touch area AA is centered on the central axis CA (e.g., Figure 2B (As shown) are symmetrical lines, set up roughly symmetrically.

[0171] In some examples, the central axis CA of the touch area AA divides the touch layer group 200 into two regions, namely the first region and the second region, wherein the third side edge A3 of the touch area AA is located in the first region and the fourth side edge A4 of the touch area AA is located in the second region.

[0172] A portion of the first touch trace 23A, another portion of the first touch trace 23B, and the second touch trace 24 converge in the first area. Multiple pins in the bonding area B40 are located in the center of the bonding area B40, with the central axis CA passing through the center of the bonding area B40.

[0173] Specifically, the portion of the second second routing segment 252B that gradually approaches the central axis CA along the first specified direction F1 is defined as the first sub-routing segment 252B1.

[0174] In some embodiments of this disclosure, the first sub-line segment 252B1 is made to gradually approach the central axis CA of the touch area AA along the first specified direction F1, which can make the first sub-line segment 252B1 gradually approach the ground pin 26 on the bonding area B40.

[0175] In some examples, please refer to Figure 6A and Figure 6B The first touch line 23A also includes a fifth sub-touch line 23A5, and the extension direction of the fifth sub-touch line 23A5 is the same as the extension direction of the first sub-touch line segment 252B1.

[0176] In some examples, please refer to Figure 6A and Figure 6B The second touch trace 24 also includes a sixth sub-touch trace 246, the extension direction of which is the same as the extension direction of the first sub-touch trace 252B1.

[0177] In some examples, please refer to Figure 3 The lead-out area B30 includes a first routing area B31, which gradually approaches the central axis CA of the touch area AA along a first specified direction F1 (e.g., Figure 2B (As shown). The extension direction of the first routing area B31 is the same as the extension direction of the first sub-routing segment 252B1. The first routing area B31 extends along the third specified direction F3, and the direction indicated by arrow F3 is the third specified direction.

[0178] The fifth sub-touch line 23A5, the first sub-routing segment 252B1, and the sixth sub-touch line 246 are all located within the first routing area B31. Figure 3 The fifth sub-touch line 23A5, the first sub-touch segment 252B1, and the sixth sub-touch line 246 are not shown in the diagram; please refer to [reference needed]. Figure 6A and Figure 6B .

[0179] In some examples, within the first routing area B31, the spacing between any two adjacent trace segments is equal, and the width of each trace segment is equal. It should be noted that the traces within the first routing area B31 include the fifth sub-touch line 23A5, the sixth sub-touch line 246, multiple sub-shielding lines 2521B1 within the first sub-touch line segment 252B1, and the portion of another first touch trace 23B located within the first routing area B31.

[0180] In some embodiments, please refer to Figure 6A and Figure 6B The second second wiring segment 252B also includes: a second sub-wiring segment 252B2, wherein each sub-shielding wire 2521B2 in the second sub-wiring segment 252B2 extends in a direction away from the touch area AA, wherein the end of each sub-shielding wire 2521B2 in the second sub-wiring segment 252B2 away from the touch area AA corresponds one-to-one with and is electrically connected to the end of each sub-shielding wire 2521B1 in the first sub-wiring segment 252B1 near the touch area AA.

[0181] In some examples, the second sub-segment 252B2 extends approximately along the first specified direction F1.

[0182] In some examples, the extension direction of the second sub-segment 252B2 is the same as the extension direction of the first second segment 252A.

[0183] In some examples, the width of the area containing the second sub-segment 252B2 is equal to the width of the area containing the first second segment 252A.

[0184] In some examples, the width of sub-shielding line 2521B2 is equal to the width of sub-shielding line 2521A.

[0185] In some examples, the spacing between adjacent sub-shield lines 2521B2 is equal to the spacing between adjacent sub-shield lines 2521A.

[0186] In some examples, please refer to Figure 3 The lead-out area B30 includes a second routing area B32, which extends along a first designated direction F1. The end of the second routing area B32 away from the touch area AA is connected to the end of the first routing area B31 near the touch area AA.

[0187] In some examples, within the second routing area B32, the spacing between any two adjacent routing segments is equal, and the width of each routing segment is equal. It should be noted that the routing within the second routing area B32 includes the portion of the first touch routing line 23 located within the second routing area B32, the portion of the second touch routing line 24 located within the second routing area B32, and the multiple sub-shielding lines 2521B2 within the second sub-routing segment 252B2.

[0188] In some embodiments, please refer to Figure 6A , Figure 6B , Figure 7A and Figure 7B The lead-out area B30 is also provided with a third second routing segment 252C, which extends approximately in a direction parallel to the first side edge A1. One end of each of the multiple sub-shielding lines 2521C in the third second routing segment 252C is connected to the end of each of the multiple sub-shielding lines 2521B1 in the first sub-routing segment 252B1 that is away from the touch area AA. The direction parallel to the first side edge A1 is the second direction X.

[0189] The third second routing segment 252C extends approximately in a direction parallel to the first side edge A1, meaning that the angle between the extension direction of the third second routing segment 252C and the first side edge A1 is less than 5°.

[0190] The number of sub-shielded wires 2521C in the third sub-segment 252C is equal to the number of sub-shielded wires 2521B1 in the first sub-segment 252B1. Multiple sub-shielded wires 2521C correspond one-to-one with multiple sub-shielded wires 2521B1 and are electrically connected.

[0191] In some embodiments of this disclosure, by providing a third second trace segment 252C within the lead-out area B30, not only can the shield 25 extend toward the ground pin 26, but the increased size of the lead-out area B30 in the first direction Y can also be reduced.

[0192] In some examples, please refer to Figure 6A and Figure 6B The first touch trace 23A also includes a seventh sub-touch trace 23A7, which extends in the same direction as the third second trace segment 252C. The end of the seventh sub-touch trace 23A7 away from the central axis is electrically connected to the end of the fifth sub-touch trace 23A5 away from the touch area AA.

[0193] In some examples, the width of the seventh sub-touch line 23A7 is equal to the width of the fifth sub-touch line 23A5.

[0194] In some examples, please refer to Figure 6A and Figure 6B The second touch trace 24 also includes an eighth sub-touch trace 248, which extends in the same direction as the third second trace segment 252C. The end of the eighth sub-touch trace 248 away from the central axis is electrically connected to the end of the sixth sub-touch trace 246 away from the touch area AA.

[0195] In some examples, the width of the eighth sub-touch line 248 is equal to the width of the sixth sub-touch line 246.

[0196] In some examples, please refer to Figure 3 The lead-out area B30 includes a third routing area B33, which extends approximately parallel to the first side edge A1. The third routing area B33 is connected to the side of the first routing area B31 away from the touch area AA.

[0197] The seventh sub-touch line 23A7, the third second routing segment 252C, and the eighth sub-touch line 248 are all located within the third routing area B33. Figure 3 The seventh sub-touch line 23A7, the third second routing segment 252C, and the eighth sub-touch line 248 are not shown in the diagram; please refer to [reference needed]. Figure 6A and Figure 6B .

[0198] In some examples, within the third routing area B33, the spacing between any two adjacent trace segments is equal, and the width of each trace segment is equal. It should be noted that the traces within the third routing area B33 include the seventh sub-touch line 23A7, the eighth sub-touch line 248, the multiple sub-shielding lines 2521C within the third second trace segment 252C, and the portion of another first touch trace 23B located within the third routing area B33.

[0199] In some examples, the widths of the regions containing the first sub-segment 252B1 and the third second segment 252C are equal.

[0200] In some embodiments, please refer to Figure 6A The touch layer group 200 also includes: a bonding area B40, located on the side of the lead-out area B30 away from the bending area B20, and a grounding pin 26 is provided on the bonding area B40.

[0201] Please see Figure 6A and Figure 7A The lead-out area B30 is also provided with a fourth second routing segment 252D, which extends in a direction away from the touch area AA. The first designated direction F1 is the direction away from the touch area AA. In some examples, the fourth second routing segment 252D can extend in the first designated direction F1.

[0202] Please see Figure 6A and Figure 7A In the fourth second wiring segment 252D, the ends of multiple sub-shielded wires 2521D that are away from the touch area AA are connected to multiple grounding pins 26 respectively, and the other ends of multiple sub-shielded wires 2521D that are close to the touch area AA are connected to the other ends of multiple sub-shielded wires 2521C in the third second wiring segment 252C respectively.

[0203] In some examples, multiple sub-shielded wires 2521D in the fourth second trace segment 252D are connected to multiple ground pins 26 respectively.

[0204] Please see Figure 6A In addition to the grounding pin 26, the bonding area B40 is also provided with multiple first pins 27 and multiple second pins 28.

[0205] In some examples, the width of the area containing the fourth second routing segment 252D is greater than the width of the area containing the third second routing segment 252C, and the width of the area containing the fourth second routing segment 252D is greater than the width of the area containing the first sub-routing segment 252B1.

[0206] In some examples, the width of each sub-shielded line 2521D in the fourth second trace segment 252D is equal to the width of each sub-shielded line 2521C in the third second trace segment 252C.

[0207] In some examples, please refer to Figure 6AA portion of the first touch trace 23A also includes a ninth sub-touch trace 23A9, the extension direction of which is the same as that of the fourth second trace segment 252D. The end of the ninth sub-touch trace 23A9 closest to the touch area AA is electrically connected to the end of the seventh sub-touch trace 23A7 furthest from the fifth sub-touch trace 23A5, and the end of the ninth sub-touch trace 23A9 furthest from the touch area AA is electrically connected to the first pin 27.

[0208] In some examples, please refer to Figure 6A The second touch trace 24 also includes a tenth sub-touch trace 2410, which extends in the same direction as the fourth second trace segment 252D. The end of the tenth sub-touch trace 2410 closest to the touch area AA is electrically connected to the end of the eighth sub-touch trace 248 furthest from the sixth sub-touch trace 246, and the end of the tenth sub-touch trace 2410 furthest from the touch area AA is electrically connected to the second pin 28.

[0209] In some examples, please refer to Figure 3 The lead-out area B30 includes a fourth routing area B34, which extends in a direction away from the touch area AA. In some examples, the fourth routing area B34 may extend in a first specified direction F1.

[0210] The ninth sub-touch line 23A9, the fourth second routing segment 252D, and the tenth sub-touch line 2410 are all located within the fourth routing area B34. Figure 3 The ninth sub-touch line 23A9, the fourth second routing segment 252D, and the tenth sub-touch line 2410 are not shown in the diagram; please refer to [reference needed]. Figure 6A .

[0211] In some examples, the ninth sub-touch line 23A9 has the same width as the seventh sub-touch line 23A7.

[0212] In some examples, the tenth sub-touch line 2410 has the same width as the eighth sub-touch line 248.

[0213] In some examples, within the fourth routing area B34, the spacing between any two adjacent trace segments is equal, and the width of each trace segment is equal. It should be noted that the traces within the fourth routing area B34 include the ninth sub-touch line 23A9, the tenth sub-touch line 2410, the multiple sub-shielding lines 2521D within the fourth second trace segment 252D, and the portion of another first touch trace 23B located within the fourth routing area B34.

[0214] In some embodiments, please refer to Figure 6AThe spacing between adjacent sub-shielded wires 2521D in the fourth second wiring segment 252D is greater than the spacing between adjacent sub-shielded wires 2521C in the third second wiring segment 252C.

[0215] When the shielding wire 25 is electrically connected to multiple grounding pins 26 on the bonding area B40 through the fourth second wiring segment 252D, multiple grounding pins 26 are provided on the bonding area B40.

[0216] In some embodiments of this disclosure, by making the spacing between adjacent sub-shield lines 2521D in the fourth second trace segment 252D greater than the spacing between adjacent sub-shield lines 2521C in the third second trace segment 252C, the spacing between adjacent sub-shield lines 2521D in the fourth second trace segment 252D can be designed to be larger, thereby increasing the distance between multiple grounding pins 26 on the bonding area B40, thus preventing coupling of multiple grounding pins 26 on the bonding area B40 due to excessive compactness.

[0217] In some examples, the distance between adjacent ninth sub-touch lines 23A9 is greater than the distance between adjacent seventh sub-touch lines 23A7. The distance between two adjacent first pins 27 can be designed to be larger, thereby avoiding coupling of multiple first pins 27 on the bonding area B40 due to excessive compactness.

[0218] In some examples, the distance between adjacent tenth sub-touch lines 2410 is greater than the distance between adjacent eighth sub-touch lines 248. The distance between two adjacent second pins 28 can be designed to be larger, thereby avoiding coupling of multiple second pins 28 on the bonding area B40 due to excessive compactness.

[0219] In some examples, please refer to Figure 6A The distance between two adjacent sub-shielded lines 2521D within the fourth second routing segment 252D is H9, and the distance between two adjacent sub-shielded lines 2521C within the third second routing segment 252C is H10. Wherein, H9 is greater than H10, and H10 < H9 ≤ 2H10. For example, H9 = 1.53H10.

[0220] In some examples, the value of H9 is in the range of 20μm≤H9≤26μm, for example, H9=23μm.

[0221] In some examples, the value of H10 is in the range of 12μm≤H10≤18μm, for example, H10=15μm.

[0222] In some examples, please refer to Figure 6AThe distance between the ninth sub-touch line 23A9 and the adjacent sub-shielding line 2521D is greater than the distance between the seventh sub-touch line 23A7 and the adjacent sub-shielding line 2521C.

[0223] In some examples, please refer to Figure 6A The distance between the tenth sub-touch line 2410 and the adjacent sub-shielding line 2521D is greater than the distance between the eighth sub-touch line 248 and the adjacent sub-shielding line 2521C.

[0224] In some examples, please refer to Figure 6A The width of the area where the second sub-segment 252B2 is located is equal to the width of the area where the fourth second sub-segment 252D is located.

[0225] In some examples, the width of sub-shielding line 2521B2 is equal to the width of sub-shielding line 2521D.

[0226] In some examples, the spacing between adjacent sub-shield lines 2521B2 is equal to the spacing between adjacent sub-shield lines 2521D.

[0227] In some of the embodiments described above, the shielding wire 25 is electrically connected to the ground pin 26 via the second trace segment 252. In other embodiments, please refer to... Figure 6B and Figure 7B The lead-out area B30 is also provided with a second first routing segment 251B, which extends in a direction away from the touch area AA. Here, the first designated direction F1 is the direction away from the touch area AA. In some examples, the second first routing segment 251B can extend in the first designated direction F1.

[0228] Please see Figure 6B and Figure 7B One end of the second first trace segment 251B is connected to the ground pin 26, and the other end is simultaneously connected to each of the sub-shield wires 2521C in the third second trace segment 252C.

[0229] The end of the second first trace segment 251B closest to the touch area AA is electrically connected to the end of each sub-shielded line 2521C furthest from the sub-shielded line 2521B1, and the end of the second first trace segment 251B furthest from the touch area AA is electrically connected to the ground pin 26.

[0230] The shielded wire 25 is electrically connected to the ground pin 26 through the second first trace segment 251B, which can reduce the number of ground pins 26.

[0231] If a second first routing segment 251B is also provided in the lead-out area B30, please refer to [the relevant documentation]. Figure 6BThe extension direction of the ninth sub-touch line 23A9 is the same as the extension direction of the second first routing segment 251B. The extension direction of the tenth sub-touch line 2410 is the same as the extension direction of the second first routing segment 251B. At this time, the routing in the fourth routing area B34 includes the ninth sub-touch line 23A9, the tenth sub-touch line 2410, and the second first routing segment 251B.

[0232] In some embodiments, within the lead-out area B30, the width difference between the second first trace segment 251B and any sub-shielding line 2521 is less than or equal to 40% of the width of the sub-shielding line 2521.

[0233] In the case where a second first routing segment 251B is provided within the lead-out area B30, the sub-shielding wires 2521 within the lead-out area B30 include multiple sub-shielding wires 2521C within the third second routing segment 252C and multiple sub-shielding wires 2521B1 within the first sub-shielding segment 252B1. The width of the sub-shielding wire 2521C is equal to the width of the sub-shielding wire 2521B1.

[0234] Please see Figure 6B The width of the second first routing segment 251B is H11, and the width of any sub-shielded line 2521 within the lead-out area B30 is H12.

[0235] In some examples, the width H11 of the second first trace segment 251B can be greater than, equal to or less than the width H12 of each sub-shielded line 2521 within the lead-out area B30.

[0236] The difference between the width H11 of the second first trace segment 251B and the width H12 of each sub-shielding line 2521 in the lead-out area B30 is less than or equal to 0.4H12. This can prevent the width difference between the second first trace segment 251B and each sub-shielding line 2521 in the lead-out area B30 from being too large (e.g., exceeding 0.4H12), which would result in a large width difference between the second first trace segment 251B and the first touch trace 23 and the second touch trace 24, thus leading to poor etching uniformity.

[0237] In some examples, within the lead-out area B30, the width difference between the second first trace segment 251B and any sub-shielding line 2521 is less than or equal to 20% of the width of the sub-shielding line 2521. For example, within the lead-out area B30, the width H11 of the second first trace segment 251B is equal to the width H12 of any sub-shielding line 2521.

[0238] In some examples, the width H11 of the second first trace segment 251B has a range of 12μm ≤ H11 ≤ 16μm. For example, H11 = 14μm.

[0239] In some examples, the width H12 of each sub-shielding wire 2521 within the lead-out area B30 ranges from 12μm to 16μm. For example, H12 = 14μm.

[0240] In some embodiments, within the lead-out area B30: the width difference between any sub-shielding line 2521 and the first touch trace 23 is less than or equal to 40% of the width of the first touch trace 23.

[0241] In some examples, please refer to Figure 6A The sub-shielded wires 2521 located within the lead-out area B30 include: each sub-shielded wire 2521B1 in the first sub-routing segment 252B1, each sub-shielded wire 2521C in the third second routing segment 252C, and multiple sub-shielded wires 2521D in the fourth second routing segment 252D.

[0242] In other examples, please refer to Figure 6B The sub-shielded wires 2521 located within the lead-out area B30 include: each sub-shielded wire 2521B1 in the first sub-routing segment 252B1 and each sub-shielded wire 2521C in the third second routing segment 252C.

[0243] In some examples, multiple first touch traces 23 have the same line width within the lead-out area B30; please refer to [link / reference]. Figure 6A and Figure 6B The width of the portion of the first touch trace 23 located within the lead-out area B30 is H13.

[0244] In some examples, the width H13 of the portion of the first touch trace 23 located within the lead-out area B30 may be greater than, equal to, or less than the width H12 of each sub-shielding trace 2521 within the lead-out area B30.

[0245] The difference between the width H13 of the first touch trace 23 located in the lead-out area B30 and the width H12 of each sub-shielding line 2521 in the lead-out area B30 is less than or equal to 0.4H13. This can prevent the width difference between the first touch trace 23 located in the lead-out area B30 and each sub-shielding line 2521 in the lead-out area B30 from being too large (e.g., exceeding 0.4H13), which would result in poor etching uniformity.

[0246] In some examples, within the lead-out area B30, the width difference between the portion of the first touch trace 23 located within the lead-out area B30 and the portion of any sub-shielding line 2521 located within the lead-out area B30 is less than or equal to 20% of the width of the portion of the first touch trace 23 located within the lead-out area B30. For example, within the lead-out area B30, the width H13 of the portion of the first touch trace 23 located within the lead-out area B30 is equal to the width H12 of the portion of any sub-shielding line 2521 located within the lead-out area B30.

[0247] In some examples, the width H13 of the portion of the first touch trace 23 located within the lead-out area B30 ranges from 12μm to 16μm. For example, H13 = 14μm.

[0248] In some embodiments, within the lead-out area B30: the width difference between any sub-shielding line 2521 and the second touch trace 24 is less than or equal to 40% of the width of the second touch trace 24.

[0249] In some examples, multiple second touch traces 24 have the same line width within the lead-out area B30; please refer to [link / reference]. Figure 6A and Figure 6B The width of the portion of the second touch trace 24 located within the lead-out area B30 is H14.

[0250] In some examples, the width H14 of the portion of the second touch trace 24 located within the lead-out area B30 may be greater than, equal to, or less than the width H12 of each sub-shielding trace 2521 within the lead-out area B30.

[0251] The difference between the width H14 of the second touch trace 24 located in the lead-out area B30 and the width H12 of each sub-shielding line 2521 in the lead-out area B30 is less than or equal to 0.4H14. This can prevent the width difference between the second touch trace 24 located in the lead-out area B30 and each sub-shielding line 2521 in the lead-out area B30 from being too large (e.g., exceeding 0.4H14), which would result in poor etching uniformity.

[0252] In some examples, within the lead-out area B30, the width difference between the portion of the second touch trace 24 located within the lead-out area B30 and the portion of any sub-shielding line 2521 located within the lead-out area B30 is less than or equal to 20% of the width of the portion of the second touch trace 24 located within the lead-out area B30. For example, within the lead-out area B30, the width H14 of the portion of the second touch trace 24 located within the lead-out area B30 is equal to the width H12 of the portion of any sub-shielding line 2521 located within the lead-out area B30.

[0253] In some examples, the width H14 of the portion of the second touch trace 24 located within the lead-out area B30 ranges from 12μm to 16μm. For example, H14 = 14μm.

[0254] In some embodiments, within the lead-out area B30, the widths of the first touch trace 23, the second touch trace 24, and the sub-shielding line 2521 are equal, i.e., H13 = H14 = H12.

[0255] In some examples, within the lead-out area B30, the width difference between the width H11 of the second first trace segment 251B and the width of the first touch trace 23 is less than or equal to 40% of the width H13 of the first touch trace 23. For example, the width difference between the width H11 of the second first trace segment 251B and the width of the first touch trace 23 is less than or equal to 20% of the width H13 of the first touch trace 23. For example, H11 = H13.

[0256] In some examples, within the lead-out area B30, the width difference between the width H11 of the second first trace segment 251B and the width of the second touch trace 24 is less than or equal to 40% of the width H14 of the second touch trace 24. For example, the width difference between the width H11 of the second first trace segment 251B and the width of the second touch trace 24 is less than or equal to 20% of the width H14 of the second touch trace 24. For example, H11 = H14.

[0257] In some examples, H11 = H13 = H14.

[0258] In some embodiments, the width of the area containing all sub-shielded wires 2521 in the second trace segment 252 is 3 to 8 times the width of the first trace segment 251. This avoids an excessive difference (e.g., greater than 8 times) between the width of the area containing all sub-shielded wires 2521 in the second trace segment 252 and the width of the first trace segment 251, resulting in an excessively large width for the area containing the second trace segment 252. Furthermore, it also avoids an excessive difference (e.g., less than 3 times) between the width of the area containing all sub-shielded wires 2521 in the second trace segment and the width of the first trace segment 251, resulting in an excessively small width for the first trace segment 251 and reduced shielding effectiveness.

[0259] In some of the above embodiments, the ratio between the width H3 of the area where the first second routing segment 252A is located in the first fan-out area B10 and the width H1 of the first first routing segment 251A has been described. The following describes the ratio between the width of the second routing segment 252 and the width of the first routing segment 251 in the lead-out area B30.

[0260] In some examples, a first sub-trace segment 252B1 and a third second trace segment 252C are provided within the lead-out area B30. Specifically, the width of the sub-shielding line 2521B1 in the first sub-trace segment 252B1 is equal to the width of the sub-shielding line 2521C in the third second trace segment 252C, and the spacing between adjacent sub-shielding lines 2521B1 is equal to the spacing between adjacent sub-shielding lines 2521C. In this case, the widths of the areas containing the first sub-trace segment 252B1 and the third second trace segment 252C are equal.

[0261] Please refer to Figure 6A and Figure 6B The width of the area where the first sub-segment 252B1 is located is H15.

[0262] Please see Figure 6B When a second first routing segment 251B is also provided within the lead-out area B30, the width H15 of the first sub-routing segment 252B1 is 4.5 to 6 times the width H11 of the second first routing segment 251B. In some examples, H15 is 4.8 to 5.4 times H11. For example, H15 is 5.14 times H11.

[0263] In some examples, the width H15 of the region where the first sub-segment 252B1 is located ranges from 68μm≤H15≤76μm, for example, H15=72μm.

[0264] In some examples, the width H3 of the area containing the first second trace segment 252A is 6 to 8 times the width H11 of the second first trace segment 251B. For example, H3 = 7.57H11.

[0265] In some embodiments, if a second first trace segment 251B is also provided within the lead-out area B30, see [reference needed]. Figure 7C and Figure 7D Within the first fan-out area B10, a fifth second routing segment 252E is also provided, extending along the first side edge A1 of the touch area AA. Multiple sub-shielding lines 2521E within the fifth second routing segment 252E all extend along the first side edge A1. The first sub-touch line 23A1 and the third sub-touch line 243 are respectively located on both sides of the fifth second routing segment 252E.

[0266] One end of the multiple sub-shielded wires 2521E in the fifth second wiring segment 252E corresponds one-to-one with the end of the multiple sub-shielded wires 2521A in the first second wiring segment 252A near the touch area AA and is electrically connected.

[0267] See in some examples Figure 7CAlong the first specified direction F1, the width of the multiple sub-shielding lines 2521E in the fifth second routing segment 252E gradually decreases.

[0268] In some examples, in the fifth second trace segment 252E, the width of the sub-shielding line 2521E near the first sub-touch line 23A1 is equal to the width of the first sub-touch line 23A1, so that the first touch trace 23 near the sub-shielding line 2521E and the first touch trace 23 far from the sub-shielding line 2521E have the same signal environment, thereby improving the touch performance of the touch layer group 200.

[0269] In some examples, in the fifth second trace segment 252E, the width of the sub-shielding line 2521 near the third sub-touch line 243 is equal to the width of the third sub-touch line 243, so that the second touch trace 24 near the sub-shielding line 2521 and the second touch trace 24 away from the sub-shielding line 2521 have the same signal environment, thereby improving the touch performance of the touch layer group 200.

[0270] In some embodiments, see Figure 6A and Figure 6B The second wiring segment 252 is provided with 2 to 4 sub-shielded wires 2521. For example, the second wiring segment 252 is provided with 3 sub-shielded wires 2521.

[0271] The structure of the first touch trace 23, the second touch trace 24, and the shielding line 25 in each area has been described above. The first touch electrode 21 and the second touch electrode 22 will be described below.

[0272] In some embodiments, please refer to Figure 2B Each of the plurality of first touch electrodes 21 is an integral structure; each of the plurality of second touch electrodes 22 includes a plurality of touch sub-electrodes 221 and at least one bridging portion 222; two adjacent touch sub-electrodes 221 in the second touch electrodes 22 are separated by a first touch electrode 21.

[0273] Please see Figure 8A The touch layer assembly 200 includes an insulating layer 201 and two conductive layers 202, with the insulating layer 201 located between the two conductive layers 202. A plurality of first touch electrodes 21 and a plurality of touch sub-electrodes 221 are located in one conductive layer 202, and a plurality of bridging portions 222 are located in the other conductive layer 202. One bridging portion 222 electrically connects two adjacent touch sub-electrodes 221 through a via on the insulating layer 201.

[0274] It should be noted that the first touch electrode 21 is an integral structure, meaning that all parts of each first touch electrode 21 are located on the same layer and are directly connected together.

[0275] Furthermore, "same-layer setup" refers to a layer structure formed by using the same film deposition process to create a specific pattern, and then using the same photomask to form a single patterning process. Depending on the specific pattern, the same patterning process may include multiple exposure, development, or etching processes, and the specific images in the formed layer structure may be continuous or discontinuous, and these specific patterns may also be at different heights or have different thicknesses.

[0276] In some embodiments of this disclosure, please refer to Figure 2B Since each first touch electrode 21 is an integral structure, and all touch sub-electrodes 221 and all first touch electrodes 21 are arranged in the same layer, adjacent touch sub-electrodes 221 separated by the first touch electrodes 21 in each second touch electrode 22 are connected together by bridging portions 222 through vias on the insulating layer 201. That is, each bridging portion 222 is arranged crosswise with a first touch electrode 21 to realize the electrical connection between each touch sub-electrode 221 in each second touch electrode 22.

[0277] In some embodiments, such as Figure 8A As shown, two adjacent touch sub-electrodes 221 in the second touch electrode 22 are electrically connected to the bridging portion 222 through at least two vias on the insulating layer 201.

[0278] Since the two adjacent touch sub-electrodes 221 separated by the first touch electrode 21 are connected by at least two vias on the insulating layer 201, there is an overlapping area between the first touch electrode 21 and the bridging portion 222. Since the first touch electrode 21 and the bridging portion 222 are insulated from each other, a capacitor is formed in the area where the first touch electrode 21 and the bridging portion 222 intersect. When a conductor (e.g., a finger) touches the intersecting area, the original capacitance of the area is changed. The position of the touch point is obtained by detecting the change in capacitance.

[0279] Please see here. Figure 8AIn addition to the insulating layer 201 and the two conductive layers 202, the touch layer assembly 200 also includes a carrier panel 203, with the insulating layer 201 and the two conductive layers 202 disposed on one side of the carrier panel 203. The first touch electrode 21 and the touch sub-electrode 221 are disposed in the same layer, and the first touch electrode 21 and the bridging portion 222 are located on opposite sides of the insulating layer 201. Alternatively, the first touch electrode 21 and the touch sub-electrode 221 can be disposed on the insulating layer 201 and closer to the carrier panel 203, while the bridging portion 222 is disposed on the insulating layer 201 and farther from the carrier panel 203; or the first touch electrode 21 and the touch sub-electrode 221 can be disposed on the insulating layer 201 and farther from the carrier panel 203, while the bridging portion 222 is disposed on the insulating layer 201 and closer to the carrier panel 203. The embodiments of this disclosure do not limit this specific arrangement.

[0280] The arrangement of the insulating layer 201 is not limited. The insulating layer 201 can be a single, continuous layer, or it can comprise multiple insulating layers 201. When multiple insulating layers 201 are included, the insulating layer 201 is only disposed in the area where the first touch electrode 21 intersects with the bridging portion 222. For an example where the insulating layer 201 is a single continuous layer, please refer to [example description needed]. Figure 8A The orthographic projections of the first touch electrode 21 and the touch sub-electrode 221 onto the insulating layer 201 are within the boundary of the insulating layer 201.

[0281] When the first touch electrode 21 and the touch sub-electrode 221 are metal mesh structures, the metal material of the metal mesh is not limited. The metal material can be an elemental metal or a metal alloy, for example, Ag (silver), Cu (copper), Al (aluminum), or an AlNb (aluminum-niobium alloy) alloy. It can also be a metal layer consisting of multiple (at least two) stacked metal sub-layers, such as three metal sub-layers. The material of the middle metal sub-layer is Al (aluminum), and the materials of the metal sub-layers on either side of the middle layer are Ti (titanium). This structure can be denoted as Ti / Al / Ti. In this case, the conductive layer 202 including the first touch electrode 21 and the touch sub-electrode 221 is a Ti / Al / Ti structure.

[0282] In some examples, please refer to Figure 8AThe two conductive layers 202 are a first conductive layer 2021 and a second conductive layer 2022, respectively, wherein the second conductive layer 2022 is located on the side of the first conductive layer 2021 facing away from the supporting panel 203. The first touch electrode 21 and the touch sub-electrode 221 are located in the first conductive layer 2021, and the bridging portion 222 is located in the second conductive layer 2022. In this case, the first conductive layer 2021 has a Ti / Al / Ti structure. In this example, when the first touch electrode 21 and the touch sub-electrode 221 are metal mesh structures, on the one hand, the light transmittance of the entire touch layer group 200 is better; on the other hand, compared with transparent conductive materials such as ITO, since the conductivity of metal materials is generally lower, the overall conductivity of each first touch electrode 21 and second touch electrode 22 made of metal material is better.

[0283] It should be understood that, since the first touch electrode 21 and the touch sub-electrode 221 are arranged in the same layer, therefore, reference Figure 2B The adjacent first touch electrode 21 and touch sub-electrode 221 are disconnected.

[0284] Furthermore, the shape of the first touch electrode 21 and the touch sub-electrode 221 as a metal mesh structure is not limited. For example, such as... Figure 2B As shown, in each first touch electrode 21, except for the two ends, the remaining parts of the first touch electrode 21 are composed of multiple rhombuses, and the ends of two adjacent rhombuses are directly connected together; in each touch sub-electrode 221, except for the two ends of the touch sub-electrode 221, the remaining touch sub-electrodes 221 are all rhombuses in shape.

[0285] It should be noted that the two ends of each first touch electrode 21 are the two ends of the extension direction of the first touch electrode 21 and are located at the edge of the touch area AA. Similarly, the two ends of the touch sub-electrode 221 are the two ends of the extension direction of the second touch electrode 22 and are located at the edge of the touch area AA.

[0286] Based on this, since the remaining parts of the first touch electrode 21 at both ends are composed of multiple rhombuses directly connected, and the shape of the touch sub-electrodes 221 at both ends is rhombus, the shape of the first touch electrode 21 and the touch sub-electrodes 221 at both ends can be set as isosceles triangles, and the base of the isosceles triangle faces the edge of the touch area AA of the touch layer group 200, so that the edge of the touch area AA is also provided with the first touch electrode 21 and the touch sub-electrodes 221. In this way, it can be ensured that there is no touch blind zone at the edge of the touch area AA.

[0287] In some embodiments, the first trace segment 251 can be a single-layer trace or a double-layer trace. When the first trace segment 251 is a single-layer trace, it can be located in either conductive layer 202. When the first trace segment 251 is a double-layer trace, it includes a first sub-trace and a second sub-trace, which are respectively disposed in two conductive layers 202. The first sub-trace and the second sub-trace at least partially overlap, and they can be electrically connected vias located within the insulating layer 201.

[0288] In some embodiments, at least one sub-shielded wire 2521 in the second wiring segment 252 is a single-layer wire or a double-layer wire.

[0289] When the sub-shielding line 2521 is a single-layer line, it can be located in any of the conductive layers 202. For example, the sub-shielding line 2521 can be disposed in the same layer as the first touch electrode 21 and the touch sub-electrode 221, or it can be disposed in the same layer as the bridging portion 222. For example, the single-layer line is a Ti / Al / Ti structure.

[0290] When the sub-shielding wire 2521 is a double-layered wire, one layer of the sub-shielding wire 2521 is located in the first conductive layer 2021. For example, the portion of the sub-shielding wire 2521 located in the first conductive layer 2021 has a Ti / Al / Ti structure. The other layer of the sub-shielding wire 2521 can be disposed in the same layer as the bridging portion 222, that is, located in the second conductive layer 2022. For example, the portion of the sub-shielding wire 2521 located in the second conductive layer 2022 can also have a Ti / Al / Ti structure. In this case, the portion of a sub-shielding wire 2521 located in the first conductive layer 2021 and the portion located in the second conductive layer 2022 are electrically connected through vias in the insulating layer 201.

[0291] When all the sub-shielded lines 2521 in the second wiring segment 252 are single-layer lines: the sub-shielded lines 2521 are located in the same conductive layer 202; or, the sub-shielded lines 2521 are located in two conductive layers 202 respectively, and at least one sub-shielded line 2521 located in one conductive layer 202 overlaps at least partially with at least one sub-shielded line 2521 located in the other conductive layer 202 in a direction perpendicular to the touch layer group 200.

[0292] In the case where multiple sub-shielding lines 2521 are located in two conductive layers 202 respectively, the sub-shielding lines include first sub-shielding lines and second sub-shielding lines, wherein at least one first sub-shielding line and at least one second sub-shielding line at least partially overlap. For example, a first sub-shielding line and a second sub-shielding line can completely overlap, thereby reducing the space occupied by the sub-shielding lines, increasing the space occupied by the touch lines, and thus increasing the width of the touch lines, reducing the width difference between the touch lines and the shielding lines 25, and improving the uniformity of etching.

[0293] In some embodiments, please refer to Figure 8B The touch layer group 200 includes multiple first-type touch traces 204 and multiple second-type touch traces 205, which are respectively disposed on two conductive layers 202. Both the first-type touch traces 204 and the second-type touch traces 205 are single-layer lines.

[0294] In some examples, please refer to Figure 8B The two conductive layers 202 are a first conductive layer 2021 and a second conductive layer 2022, respectively. A first type of touch trace 204 is located in the first conductive layer 2021, and a second type of touch trace 205 is located in the second conductive layer 2022. The second conductive layer 2022 is located on the side of the first conductive layer 2021 that faces away from the carrier panel 203.

[0295] The first type of touch trace 204 and the second type of touch trace 205 overlap at least partially in a direction perpendicular to the touch layer group 200. This reduces the area occupied by the first type of touch trace 204 and the second type of touch trace 205. Furthermore, the widths of the first type of touch trace 204 and the second type of touch trace 205 can be designed to be wider, thereby reducing the width difference between the shielding line 25 and the first type of touch trace 204, as well as the width difference between the shielding line 25 and the second type of touch trace 205, thus improving the uniformity of etching.

[0296] In some examples, a Type I touch trace 204 and a Type II touch trace 205 may completely overlap or partially overlap.

[0297] Among them, the multiple first-type touch traces 204 include a portion of the first touch traces 23 and a portion of the second touch traces 24, and the multiple second-type touch traces 205 include another portion of the first touch traces 23 and another portion of the second touch traces 24.

[0298] Multiple first touch traces 23 are respectively disposed in two conductive layers 202. Each first touch trace 23 is a single-layer trace; therefore, any two first touch traces 23 are respectively connected to different first pins 27 (e.g., ...). Figure 6Aand Figure 6B (As shown).

[0299] Multiple second touch traces 24 are respectively disposed in two conductive layers 202. The second touch traces 24 are single-layer lines. Therefore, any two second touch traces 24 are respectively connected to different second pins 28.

[0300] For some other examples, please refer to Figure 8C The first touch trace 23 is a double-layer trace. Of course, the second touch trace 24 can also be a double-layer trace.

[0301] In some embodiments, please refer to Figures 8A to 8C The touch layer group 200 also includes a protective layer 206, wherein the protective layer 206 is located on the side of the two conductive layers 202 away from the carrier panel 203. At this time, the two conductive layers 202 and the insulating layer 201 are located between the protective layer 206 and the carrier panel 203. The protective layer 206 can protect the two conductive layers 202 and prevent the conductive layers 202 from being scratched, thus affecting the touch function.

[0302] In some embodiments, please refer to Figure 9 and Figure 10 The touch display device 100 also includes a display substrate 300, with the touch layer group 200 located on the display surface of the display substrate 300. In this case, the display substrate 300 is the aforementioned carrier panel 203.

[0303] Please refer to Figure 11 The display substrate 300 includes a display area SS. The display area SS contains multiple sub-pixels P, which are the smallest units for image display on the display substrate 300. Each sub-pixel P can display a single color, such as red (R), green (G), or blue (B). The display substrate 300 contains numerous red, green, and blue sub-pixels. By adjusting the brightness (grayscale) of different color sub-pixels and through color combination and superposition, multiple colors can be displayed, thus achieving full-color display on the display substrate 300.

[0304] The edge of the touch area AA of the touch layer group 200 roughly coincides with the edge of the display area SS.

[0305] like Figure 9 As shown, when the touch display device 100 is a liquid crystal touch display device, the display substrate 300 is a liquid crystal display substrate 300A. The main structure of the liquid crystal display substrate 300A includes an array substrate 31, a cell substrate 32, and a liquid crystal layer 33 disposed between the array substrate 31 and the cell substrate 32.

[0306] Each sub-pixel of the array substrate 31 includes a thin-film transistor 311 and a pixel electrode 312 located on the first substrate 310. The thin-film transistor 311 includes an active layer, a source, a drain, a gate, and a gate insulating layer. The source and drain are respectively in contact with the active layer, and the pixel electrode 312 is electrically connected to the drain of the thin-film transistor 311. In some embodiments, the array substrate 31 further includes a common electrode 313 disposed on the first substrate 310. The pixel electrode 312 and the common electrode 313 may be disposed on the same layer. In this case, both the pixel electrode 312 and the common electrode 313 are comb-shaped structures including multiple strip-shaped sub-electrodes. The pixel electrode 312 and the common electrode 313 may also be disposed on different layers. In this case, such as Figure 9 As shown, a first interlayer insulating layer 314 is disposed between the pixel electrode 312 and the common electrode 313. When the common electrode 313 is disposed between the thin-film transistor 311 and the pixel electrode 312, as... Figure 9 As shown, a second interlayer insulating layer 315 is also disposed between the common electrode 313 and the thin-film transistor 311. In some embodiments, the array substrate 31 does not include the common electrode 313, in which case the common electrode 313 may be located in the cell substrate 32.

[0307] like Figure 9 As shown, the array substrate 31 also includes a planarization layer 316 disposed on the side of the thin film transistor 311 and the pixel electrode 312 away from the first substrate 310.

[0308] like Figure 9 As shown, the cell substrate 32 includes a color filter layer 321 disposed on the second substrate 320. In this case, the cell substrate 32 can also be referred to as a color filter (CF) substrate. The color filter layer 321 includes at least red photoresist units, green photoresist units, and blue photoresist units, each of which is directly opposite a subpixel on the array substrate 31. The cell substrate 32 also includes a black matrix pattern 322 disposed on the second substrate 320, which separates the red, green, and blue photoresist units.

[0309] like Figure 9 As shown, the liquid crystal display substrate 300A also includes an upper polarizer 34 disposed on the side of the cell substrate 32 away from the liquid crystal layer 33 and a lower polarizer 35 disposed on the side of the array substrate 31 away from the liquid crystal layer 33.

[0310] like Figure 10As shown, when the touch display device 100 is an electroluminescent touch display device, the display substrate 300 is an electroluminescent display substrate 300B. For example, OLED display substrates have advantages such as thinness, flexibility, vibrant colors, high contrast, and fast response speed, and are currently one of the mainstream display substrates. When the touch display substrate is an electroluminescent display substrate, the display substrate 300 is a flexible display substrate, and in this case, the touch display device can be manufactured as a flexible display device.

[0311] like Figure 10 As shown, the electroluminescent display substrate 300B may include a display substrate 36 and an encapsulation layer 37 for encapsulating the display substrate 36. Here, the encapsulation layer 37 may be an encapsulation film or an encapsulation substrate.

[0312] like Figure 10 As shown, the sub-pixel includes a driving circuit and a light-emitting device disposed on a third substrate 360. The driving circuit includes a plurality of thin-film transistors 311. The light-emitting device includes an anode 361, a light-emitting functional layer 362, and a cathode 363. The anode 361 is electrically connected to the drain of one of the plurality of thin-film transistors 311 that serves as a driving transistor. The electroluminescent display substrate 300B also includes a pixel defining layer 364, which includes a plurality of opening regions. The light-emitting functional layer 362 is disposed in one opening region. In some embodiments, the light-emitting functional layer 362 includes a light-emitting layer. In other embodiments, in addition to including a light-emitting layer, the light-emitting functional layer 362 includes one or more of an electron transport layer (ETL), an electron injection layer (EIL), a hole transport layer (HTL), and a hole injection layer (HIL).

[0313] like Figure 10 As shown, the light-emitting functional layer 362 also includes a planarization layer 365 disposed between the driving circuit and the anode 361.

[0314] refer to Figure 10 As can be seen, the first touch electrode 21 and the touch sub-electrode 221 are disposed on the light-emitting surface of the electroluminescent display substrate 300B. In this case, the bridging portion 222 can be disposed on the side of the first touch electrode 21 that is close to or far from the electroluminescent display substrate 300B. When the bridging portion 222 is disposed on the side of the first touch electrode 21 that is close to the display substrate 36, the first touch electrode 21 and the touch sub-electrode 221 as a whole have an insulating layer 201 between them and the bridging portion 222.

[0315] In some embodiments, such as Figure 10 As shown, the display substrate 300 also includes a buffer layer 38 disposed on the encapsulation layer 37 to prevent the encapsulation layer 37 from being damaged or scratched during the formation of the first touch electrode 21 and the touch sub-electrode 221.

[0316] In some embodiments, the electroluminescent display substrate 300B includes an active film layer 366, a first gate metal layer Gate1, a second gate metal layer Gate2, a first source / drain metal layer SD1, and a second source / drain metal layer SD2 sequentially disposed on a third substrate 360. The active film layer 366 and the first gate metal layer Gate1 are used to form a portion of the thin-film transistors 311 in the driving circuit. The active film layer 366 and the second gate metal layer Gate2 are used to form the remaining transistors 311 in the driving circuit, while the first gate metal layer Gate1 and the second gate metal layer Gate2 are used to form capacitors in the driving circuit. The first source / drain metal layer SD1 and the second source / drain metal layer SD2 include multiple signal lines for transmitting signals to the driving circuit, such as data lines, initialization signal lines, power signal lines, etc., which are not listed here.

[0317] Based on the embodiment where the display substrate 300 is an electroluminescent display substrate 300B, in some embodiments, when the touch layer group 200 includes a first second trace segment 252A located in the first fan-out area B10 and a second second trace segment 252B located in the lead-out area B30: the display substrate 300 is provided with a plurality of jumpers at the portion corresponding to the bending area B20; a sub-shielding line 2521A in the first second trace segment 252A is electrically connected to a sub-shielding line 2521B in the second second trace segment 252B through at least one jumper.

[0318] First, it should be noted that in some examples, the touch layer group 200 includes a first fan-out area B10, a bending area B20, a lead-out area B30, and a bonding area B40, and the touch display device 100 includes the touch layer group 200. Therefore, the touch display device 100 also includes the first fan-out area B10, the bending area B20, the lead-out area B30, and the bonding area B40. The touch display device 100 also includes a display substrate 300. Therefore, the display substrate 300 also includes a first fan-out area B10, a bending area B20, a lead-out area B30, and a bonding area B40. The first fan-out area B10 in the display substrate 300 is the same area as the first fan-out area B10 in the touch layer group 200, the bending area B20 in the display substrate 300 is the same area as the bending area B20 in the touch layer group 200, the lead-out area B30 in the display substrate 300 is the same area as the lead-out area B30 in the touch layer group 200, and the bonding area B40 in the display substrate 300 is the same area as the bonding area B40 in the touch layer group 200.

[0319] In some examples, the second second routing segment 252B includes a first sub-routing segment 252B1 and a second sub-routing segment 252B2, and the sub-shielding line 2521B includes sub-shielding line 2521B1 and sub-shielding line 2521B2. In this case, the two ends of at least one of the multiple jumpers are electrically connected to sub-shielding line 2521A and sub-shielding line 2521B2, respectively.

[0320] Among them, the bending area B20 of the display substrate 300 can be bent, and a part of the bending area B20, the lead-out area B30 and the bonding area B40 can be bent to the back of the display substrate 300, thereby reducing the width of the bezel of the display substrate 300 and meeting the requirement of a "small chin" in the display substrate 300.

[0321] The portion of the display substrate 300 corresponding to the bending area B20 has strong bending resistance. Therefore, by connecting the sub-shielding line 2521A and sub-shielding line 2521B with jumpers located inside the display substrate 300, the breakage of the wiring and the failure of the shielding line 25 can be reduced.

[0322] The jumper wire used to connect sub-shielded wire 2521A and sub-shielded wire 2521B is defined as the first jumper wire. In addition, multiple second jumper wires are provided on the display substrate 300 corresponding to the bending area B20. The portion of the first touch trace 23 located in the first fan-out area B10 and the portion of the first touch trace 23 located in the lead-out area B30 are electrically connected through the second jumper wires.

[0323] The display substrate 300 is also provided with a plurality of third jumpers corresponding to the bending area B20. The part of the second touch line 24 located in the first fan-out area B10 and the part of the second touch line 24 located in the lead-out area B30 are electrically connected through the third jumpers.

[0324] The jumper can be disposed in at least one of the first gate metal layer Gate1, the second gate metal layer Gate2, the first source / drain metal layer SD1, and the second source / drain metal layer SD2.

[0325] In some other embodiments, a sixth second trace segment is provided at the location corresponding to the bending area B20 of the touch layer group. Multiple sub-shielded lines in the sixth second trace segment extend in a direction away from the touch area AA. In some examples, the sixth second trace segment extends in a first designated direction F1. The ends of the multiple sub-shielded lines in the sixth second trace segment near the touch area AA correspond one-to-one with and are electrically connected to the ends of the multiple sub-shielded lines 2521A in the first second trace segment 252A that are away from the touch area AA. The ends of the multiple sub-shielded lines in the sixth second trace segment away from the touch area AA correspond one-to-one with and are electrically connected to the ends of the multiple sub-shielded lines 2521B in the second second trace segment 252B that are near the touch area AA.

[0326] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A touch layer assembly, characterized in that, include: Touch area and surrounding area; The touch layer group includes: Multiple first touch electrodes and multiple second touch electrodes are all located in the touch area; Multiple first touch traces are electrically connected to the multiple first touch electrodes and extend to the surrounding area; Multiple second touch traces are electrically connected to the multiple second touch electrodes and extend to the peripheral area; A shielding line is located in the peripheral area and between adjacent first touch traces and second touch traces; the shielding line includes a first trace segment and a second trace segment; the second trace segment includes multiple sub-shielding lines, which are simultaneously electrically connected to the first trace segment, and the multiple sub-shielding lines extend in the same direction and are spaced apart from each other, and the width of the area where the multiple sub-shielding lines are located is greater than the width of the first trace segment; The peripheral area includes a first fan-out area connected to the first side edge of the touch area; The first fan-out area is provided with a first second routing segment; each sub-shielding line in the first second routing segment extends in a direction away from the touch area.

2. The touch layer assembly according to claim 1, characterized in that, The first fan-out area is further provided with a first first trace segment; the first first trace segment extends along the first side edge of the touch area; In the first second wiring segment, the ends of each sub-shielded wire near the touch area are electrically connected to the first first wiring segment.

3. The touch layer assembly according to claim 2, characterized in that, The width of the first first routing segment is 1.3 to 1.7 times the width of any sub-shielding wire in the first second routing segment.

4. The touch layer assembly according to claim 2, characterized in that, The width of the area where the first second trace segment is located is 3 to 4.5 times the width of the first first trace segment.

5. The touch layer assembly according to claim 2, characterized in that, The touch area is roughly rectangular and includes a first side edge, a second side edge, a third side edge, and a fourth side edge. The first side edge is opposite to the second side edge, and the third side edge is opposite to the fourth side edge. The length of the first side edge is equal to the length of the second side edge, the length of the third side edge is equal to the length of the fourth side edge, and the length of the first side edge is less than the length of the third side edge. A portion of the plurality of first touch traces extends from the first side edge to the first fan-out area; another portion of the plurality of first touch traces extends from the second side edge and from the fourth side of the touch area to the first fan-out area; the plurality of second touch traces extend from the third side edge to the first fan-out area. The portion of the first touch trace located in the first fan-out area, and the portion of the plurality of second touch traces located in the first fan-out area, are located on both sides of the shielding line.

6. The touch layer assembly according to claim 5, characterized in that, At least one of the first touch traces located in the first fan-out area includes a first sub-touch line and a second sub-touch line connected to each other; the first sub-touch line extends in the same direction as the first first trace segment, and the second sub-touch line extends in the same direction as the first second trace segment; At least one of the plurality of second touch lines is located in the portion of the first fan-out area, including a third sub-touch line and a fourth sub-touch line that are connected to each other; the third sub-touch line extends in the same direction as the first first line segment, and the fourth sub-touch line extends in the same direction as the first second line segment; The first sub-touch line and the third sub-touch line are located on both sides of the first first trace segment; the second sub-touch line and the fourth sub-touch line are located on both sides of the first second trace segment.

7. The touch layer assembly according to claim 6, characterized in that, The width of the first first trace segment is 1.3 to 1.7 times the width of the first sub-touch line; the width of the first first trace segment is 2 to 6 times the width of the third sub-touch line. And / or, The width difference between each sub-shielding line and the second sub-touch line in the first second wiring segment is less than or equal to 40% of the width of the second sub-touch line; the width difference between each sub-shielding line and the fourth sub-touch line in the first second wiring segment is less than or equal to 40% of the width of the fourth sub-touch line.

8. The touch layer assembly according to claim 5, characterized in that, The plurality of first touch electrodes extend along a first direction, and the plurality of second touch electrodes extend along a second direction. The plurality of first touch electrodes and the plurality of second touch electrodes are intersected and insulated from each other. The first direction is parallel to the third side edge, and the second direction is parallel to the first side edge.

9. The touch layer assembly according to claim 1, characterized in that, The peripheral area includes a first fan-out area connected to the first side edge of the touch area, a bent area located on the side of the first fan-out area away from the touch area, and a lead-out area located on the side of the bent area away from the first fan-out area. The lead-out area is provided with a second second wiring segment; each sub-shielding line in the second second wiring segment extends in a direction away from the touch area.

10. The touch layer assembly according to claim 9, characterized in that, At least a portion of the second second routing segment gradually approaches the central axis of the touch area from one end near the touch area to the end away from the touch area.

11. The touch layer assembly according to claim 9, characterized in that, The lead-out area is also provided with a third second wiring segment. The third second wiring segment extends approximately in a direction parallel to the first side edge. One end of the multiple sub-shielding lines in the third second wiring segment is connected to the ends of the multiple sub-shielding lines in the second second wiring segment that are away from the touch area.

12. The touch layer assembly according to claim 11, characterized in that, Also includes: The binding area is located on the side of the lead-out area away from the bending area; A grounding pin is provided on the binding area; The lead-out area is also provided with a fourth second wiring segment. The fourth second wiring segment extends in a direction away from the touch area. In the fourth second wiring segment, one end of multiple sub-shielding wires away from the touch area is connected to multiple grounding pins respectively, and the other end of multiple sub-shielding wires near the touch area is connected to the other end of multiple sub-shielding wires in the third second wiring segment respectively.

13. The touch layer assembly according to claim 12, characterized in that, The spacing between adjacent sub-shielded wires in the fourth second wiring segment is greater than the spacing between adjacent sub-shielded wires in the third second wiring segment.

14. The touch layer assembly according to claim 11, characterized in that, Also includes: The binding area is located on the side of the lead-out area away from the bending area; A grounding pin is provided on the binding area; The lead-out area is also provided with a second first trace segment. The second first trace segment extends in a direction away from the touch area. One end of the second first trace segment is connected to the ground pin, and the other end is connected to each of the sub-shield lines in the third second trace segment.

15. The touch layer assembly according to claim 14, characterized in that, Within the lead-out area, the width difference between the second first trace segment and any of the sub-shielding lines is less than or equal to 40% of the width of the sub-shielding line.

16. The touch layer assembly according to claim 15, characterized in that, Within the lead-out area: the width difference between any sub-shielding line and the first touch trace is less than or equal to 40% of the width of the first touch trace; and / or, the width difference between any sub-shielding line and the second touch trace is less than or equal to 40% of the width of the second touch trace.

17. The touch layer assembly according to any one of claims 1 to 16, characterized in that, The width of the area containing all sub-shielded wires in the second wiring segment is 3 to 8 times the width of the first wiring segment.

18. The touch layer assembly according to claim 1, characterized in that, Each of the plurality of first touch electrodes is an integral structure; each of the plurality of second touch electrodes includes a plurality of touch sub-electrodes and at least one bridging portion; In the second touch electrode, two adjacent touch sub-electrodes are separated by one of the first touch electrodes; The touch layer assembly includes: an insulating layer and two conductive layers, wherein the insulating layer is located between the two conductive layers; The plurality of first touch electrodes and the plurality of touch sub-electrodes are located in one conductive layer, and the plurality of bridging portions are located in another conductive layer. One bridging portion electrically connects two adjacent touch sub-electrodes through a via on the insulating layer.

19. The touch layer assembly according to claim 18, characterized in that, At least one sub-shielded wire in the second wiring segment is a single-layer wire or a double-layer wire; When all the sub-shielding lines in the second trace segment are single-layer lines: the multiple sub-shielding lines are located in the same conductive layer; or, the multiple sub-shielding lines are located in two conductive layers respectively, and at least one sub-shielding line in one conductive layer overlaps at least partially with at least one sub-shielding line in the other conductive layer in a direction perpendicular to the touch layer group.

20. The touch layer assembly according to claim 18 or 19, characterized in that, include: The system includes multiple first-type touch traces and multiple second-type touch traces, which are respectively disposed on two conductive layers. The first-type touch traces and the second-type touch traces overlap at least partially in a direction perpendicular to the touch layer group. The multiple first-type touch traces include a portion of first-type touch traces and a portion of second-type touch traces, and the multiple second-type touch traces include another portion of first-type touch traces and another portion of second-type touch traces.

21. A touch display device, characterized in that, include: Display substrate; The touch layer assembly as described in any one of claims 1 to 20 is located on the display surface of the display substrate; wherein the display substrate includes a display area; and the edge of the touch area of ​​the touch layer assembly substantially coincides with the edge of the display area.

22. The touch display device according to claim 21, characterized in that, The peripheral area includes a first fan-out area connected to the first side edge of the touch area, a bent area located on the side of the first fan-out area away from the touch area, and a lead-out area located on the side of the bent area away from the first fan-out area. In the case where the touch layer group includes a first second trace segment located in the first fan-out area and a second second trace segment located in the lead-out area: The display substrate is provided with multiple jumpers corresponding to the bending area; a sub-shielded wire in the first second trace segment is electrically connected to a sub-shielded wire in the second second trace segment through at least one jumper.

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