Touch panel and touch display device

Abstract

A touch panel. The touch panel includes a substrate, a sensing electrode disposed on the substrate, and at least two touch traces disposed on the substrate and passing through the sensing electrode. The sensing electrode includes a plurality of substantially parallel first conductive lines and a plurality of substantially parallel second conductive lines; the plurality of second conductive lines intersect with the plurality of first conductive lines and electrically connect the plurality of first conductive lines together. The at least two touch traces are substantially parallel to the plurality of first conductive lines; the at least two touch traces include a first touch trace electrically connected to the sensing electrode and a second touch trace not electrically connected to the sensing electrode; the orthographic projection of the second touch trace on the substrate and the orthographic projection of the plurality of first conductive lines in the sensing electrode on the substrate have no overlapping area.

Description

Technical Field

[0001] The present disclosure relates to the field of touch technology, and in particular to a touch panel and a touch display device. Background Art

[0002] Since the rise of touch technology, due to its simplicity, speed, and user-friendliness, the popularity of touch technology has increased, and there are more and more products with touch functions on the market, such as mobile phones, tablets, and laptops.

[0003] At present, touch technology includes mutual capacitance touch technology and self-capacitive touch technology. When mutual capacitance touch technology is applied to display devices, as the display size increases, the capacitive load of the mutual capacitance touch electrode increases significantly, resulting in a decrease in the touch reporting rate and signal-to-noise ratio (SNR) in the size of pads (above 9 inches) or notebooks (above 13 inches). At the same time, when the function of a capacitive active pen is added to the touch technology, the mutual capacitance touch design, especially in large-size display devices, has a high capacitive load on the touch electrode, the noise received by the touch electrode is serious, and the remote signal is severely attenuated, making it more difficult to realize the function of the active pen. In addition, due to the increasingly high requirements for the module structure of the display device and the increasingly thin module structure, mutual capacitance touch technology is prone to problems under low ground conditions.

[0004] Compared with mutual-capacitive touch technology, self-capacitive touch technology has obvious technical advantages in low ground conditions, capacitance load, touch reporting rate, signal-to-noise ratio and active pen function. Therefore, self-capacitive touch technology has received more and more attention. Summary of the invention

[0005] On the one hand, a touch panel is provided. The touch panel includes a substrate, a sensing electrode disposed on the substrate, and at least two touch traces disposed on the substrate and passing through the sensing electrode. The sensing electrode includes a plurality of substantially parallel first conductive lines and a plurality of substantially parallel second conductive lines; the plurality of second conductive lines intersect with the plurality of first conductive lines and electrically connect the plurality of first conductive lines together. The at least two touch traces are substantially parallel to the plurality of first conductive lines; the at least two touch traces include a first touch trace electrically connected to the sensing electrode and a second touch trace not electrically connected to the sensing electrode; the orthographic projection of the second touch trace on the substrate and the orthographic projection of the plurality of first conductive lines in the sensing electrode on the substrate have no overlapping area.

[0006] In some embodiments, at least one of the plurality of second conductive lines of the sensing electrode includes a plurality of conductive segments disconnected from each other, and at least one conductive segment is connected to at least one first conductive line; an orthographic projection of the second touch control trace on the substrate and an orthographic projection of the at least one conductive segment on the substrate except for a conductive segment used to connect the plurality of first conductive lines together have no overlapping area.

[0007] In some embodiments, the first touch-sensing trace is connected to at least two of the plurality of second conductive lines, and at least two of the plurality of second conductive lines are connected at a position where the first touch-sensing trace is connected to the first touch-sensing trace.

[0008] In some embodiments, the sensing electrode includes a first area, and the at least two touch control traces are arranged alternately with a plurality of first conductive lines located in the first area.

[0009] In some embodiments, the sensing electrode further includes a second region located on at least one side of the first region along an extending direction of the second conductive lines; and the first conductive lines located in the second region are arranged continuously.

[0010] In some embodiments, when at least one of the plurality of second conductive lines of the sensing electrode includes a plurality of conductive segments disconnected from each other, portions of the plurality of second conductive lines located in the second area are connected, and a portion of at least one of the plurality of second conductive lines of the sensing electrode located in the first area includes a plurality of conductive segments disconnected from each other.

[0011] In some embodiments, the sensing electrode includes two second regions; the two second regions are respectively located at two opposite sides of the first region along an extending direction of the second conductive line.

[0012] In some embodiments, the first area is an area occupied by the sensing electrode.

[0013] In some embodiments, the at least two touch lines include a plurality of effective touch lines for transmitting sensing signals and a plurality of virtual touch lines not for transmitting sensing signals.

[0014] In some embodiments, the multiple virtual touch lines are evenly distributed in a first area of ​​the sensing electrode; or, the first area includes a first sub-area and a second sub-area located on at least one side of the first sub-area along an extension direction of the second conductive line; the multiple effective touch lines are located in the first sub-area, and the multiple virtual touch lines are located in the second sub-area.

[0015] In some embodiments, the at least two touch lines and the sensing electrode are arranged in different layers; the touch panel also includes an insulating layer arranged between the sensing electrode and the at least two touch lines; the first touch line is connected to the sensing electrode through a via hole on the insulating layer.

[0016] In some embodiments, the at least two touch lines and the sensing electrode are arranged in the same layer; when the second conductive line is connected at the intersection with the second touch line, the second touch line is connected by a bridge at the intersection, and an insulating layer is arranged between the bridge and the second conductive line; or, the second conductive line is connected by a bridge at the intersection, and an insulating layer is arranged between the bridge and the second touch line.

[0017] In some embodiments, at least one first conductive line and at least one second conductive line are bending lines including a plurality of bending points; and a partial segment of the at least one first conductive line and a partial segment of the at least one second conductive line overlap.

[0018] In some embodiments, at least one touch trace is a bending line including a plurality of bending points; an orthographic projection of a portion of the at least one touch trace on the substrate overlaps with an orthographic projection of a portion of the at least one second conductive line on the substrate.

[0019] In another aspect, a touch display device is provided, wherein the touch display device comprises: a touch panel as described in any of the above embodiments.

[0020] In some embodiments, the touch display device has a display area; the display area includes a plurality of sub-pixel areas and a pixel defining area for defining the plurality of sub-pixel areas; the touch wiring and the sensing electrode are both located in the pixel defining area.

[0021] In some embodiments, the plurality of first conductive lines of the sensing electrode and the touch lines passing through the sensing electrode constitute a plurality of line groups; m sub-pixel regions are spaced between two adjacent line groups; m≥1, m is a positive integer; the line group includes at least one first conductive line and / or at least one touch line.

[0022] In some embodiments, the sensing electrodes in the touch panel and the touch traces passing through the sensing electrodes are projected on the substrate to form a plurality of meshes, and one sub-pixel region corresponds to one mesh.

[0023] In some embodiments, the touch display device is a self-luminous display device; the self-luminous display device includes a display substrate and an encapsulation layer for encapsulating the display substrate; the encapsulation layer is reused as a base of the touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0025] Figure 1 A diagram showing area division of a touch display device according to some embodiments;

[0026] Figure 2A is a structural diagram of a touch display device according to some embodiments;

[0027] Figure 2B is a structural diagram of a touch display device according to some other embodiments;

[0028] Figure 2C is a structural diagram of a touch display device according to some further embodiments;

[0029] Figure 3A is a structural diagram of a touch display device according to some further embodiments;

[0030] Figure 3B is a structural diagram of a touch display device according to some other embodiments;

[0031] Figure 4 is a structural diagram of a touch panel according to some embodiments;

[0032] Figure 5A is a structural diagram of a sensing electrode according to some embodiments;

[0033] Figure 5B is a structural diagram of sensing electrodes according to some other embodiments;

[0034] Fig. 6A is a structural diagram of sensing electrodes and touch wiring according to some embodiments;

[0035] Figure 6B is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0036] Fig. 7A is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0037] Figure 7B is a structural diagram of sensing electrodes and touch wiring according to some further embodiments;

[0038] Figure 8 is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0039] Fig. 9A is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0040] Fig. 9B is a structural diagram of sensing electrodes and touch wiring according to some further embodiments;

[0041] Fig. 10A is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0042] Fig. 10B is a structural diagram of sensing electrodes and touch wiring according to some other embodiments;

[0043] Fig.11A is a structural diagram of a touch panel according to some other embodiments;

[0044] Fig. 11B is a structural diagram of a touch panel according to some further embodiments. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0046] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0047] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0048] In this application, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, the term "electrical connection" can be a direct electrical connection or an indirect electrical connection through an intermediate medium.

[0049] Herein, “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0050] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0051] As used herein, "approximately" includes the stated values ​​and averages that are within an acceptable range of deviation from the particular value, where the acceptable range of deviation is determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0052] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0053] The embodiment of the present application provides a touch display device, which may include but is not limited to a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, etc. The embodiment of the present application does not limit the use of the touch display device.

[0054] like Figure 1 As shown, the touch display device 100 has a display area 101 and a peripheral area 102 located at least on one side of the display area 101. Figure 1 Taking the peripheral area 102 surrounding the display area 101 as an example, the display area 101 includes a plurality of sub-pixel areas 101a and a pixel defining region 101b for defining the plurality of sub-pixel areas 101a.

[0055] The plurality of sub-pixel regions 101 a include a red sub-pixel region R, a green sub-pixel region G, and a blue sub-pixel region B, for example.

[0056] Here, the shape of the sub-pixel region 101a may be, for example, a rectangle or Figure 1 The hexagon shown.

[0057] Examples of the types of the touch display device 100 are as follows. The touch display device 100 may be a liquid crystal display device (LCD); the touch display device 100 may also be a self-luminous display device. In the case where the touch display device 100 is a self-luminous display device, the self-luminous display device may be, for example, an organic light-emitting diode (OLED) or a quantum dot light emitting diode (QLED).

[0058] In the case where the touch display device 100 is a liquid crystal display device, the liquid crystal display device includes a cover glass, a touch panel, a liquid crystal display panel, and a backlight assembly. The backlight assembly is used to provide a light source for the liquid crystal display panel. Figure 2A , Figure 2B as well as Figure 2C As shown, the main structure of the liquid crystal display panel 1 includes an array substrate 11 , a cell substrate 12 , and a liquid crystal layer 13 disposed between the array substrate 11 and the cell substrate 12 .

[0059] like Figure 2A , Figure 2B as well as Figure 2C As shown, each sub-pixel region 101a of the array substrate 11 is provided with a thin film transistor 111 and a pixel electrode 112 located on the first substrate 110. The thin film transistor 111 includes an active layer, a source electrode, a drain electrode, a gate electrode and a gate insulating layer. The source electrode and the drain electrode are respectively in contact with the active layer, and the pixel electrode 112 is electrically connected to the drain electrode of the thin film transistor 111. In some embodiments, as Figure 2AAs shown, the array substrate 11 further includes a common electrode 113 disposed on the first substrate 110. The pixel electrode 112 and the common electrode 113 may be disposed on the same layer. In this case, the pixel electrode 112 and the common electrode 113 are both comb-tooth structures including a plurality of strip-shaped sub-electrodes. The pixel electrode 112 and the common electrode 113 may also be disposed on different layers. In this case, as shown in FIG. Figure 2A As shown, a first insulating layer 114 is disposed between the pixel electrode 112 and the common electrode 113. In the case where the common electrode 113 is disposed between the thin film transistor 111 and the pixel electrode 112, as shown in FIG. Figure 2A As shown, a second insulating layer 115 is further disposed between the common electrode 113 and the thin film transistor 111. In other embodiments, the cell substrate 12 includes a common electrode 113 disposed on a second substrate 120.

[0060] In some embodiments, the thin film transistor 111 may be a bottom-gate thin film transistor or a top-gate thin film transistor. The drawings of the embodiments of the present application all take the thin film transistor 111 as a bottom-gate thin film transistor as an example for illustration.

[0061] like Figure 2A , Figure 2B as well as Figure 2C As shown, the cell substrate 12 includes a second substrate 120 and a color filter layer 121 disposed on the second substrate 120. In this case, the cell substrate 12 may also be referred to as a color filter substrate (CF). The color filter layer 121 includes at least a red photoresist unit located in a red sub-pixel region, a green photoresist unit located in a green sub-pixel region, and a blue photoresist unit located in a blue sub-pixel region. The cell substrate 12 also includes a black matrix pattern 122 disposed on the second substrate 120. The black matrix pattern 122 is used to separate the red photoresist unit, the green photoresist unit, and the blue photoresist unit.

[0062] like Figure 2A , Figure 2B as well as Figure 2C As shown, the liquid crystal display panel 1 further includes an upper polarizer 14 disposed on a side of the cell substrate 12 away from the liquid crystal layer 13 and a lower polarizer 15 disposed on a side of the array substrate 11 away from the liquid crystal layer 13 .

[0063] In some embodiments, Figure 2A As shown, the touch panel 01 is arranged outside the liquid crystal display panel 1, that is, arranged between the cover glass 2 and the upper polarizer 14. In this case, the touch display device is called an external touch display device. Figure 2B and Figure 2CAs shown, the touch panel 01 is disposed in the liquid crystal display panel 1. In this case, the touch display device is called an embedded touch display device. When the touch panel 01 is disposed in the liquid crystal display panel 1, it can be as follows Figure 2B As shown, the touch panel 01 is disposed between the upper polarizer 14 and the pairing substrate 12. In this case, the touch display device is called an on-cell touch display device. Figure 2C As shown, the touch panel 01 is disposed between the first substrate 110 and the second substrate 120 , for example, disposed on the first substrate 110 . In this case, the touch display device is called an in-cell touch display device.

[0064] In the case where the touch display device 100 is a self-luminous display device, Figure 3A and Figure 3B As shown, the main structure of the self-luminous display device includes a self-luminous display panel 3, a touch panel 01, a polarizer 4, a first optically clear adhesive (OCA for short) 5 and a cover glass 2 which are arranged in sequence.

[0065] The self-luminous display panel 3 includes a display substrate 31 and a sealing layer 32 for sealing the display substrate 31. Here, the sealing layer 32 may be a sealing film or a sealing substrate.

[0066] like Figure 3A and Figure 3B As shown, the display substrate 31 includes a light-emitting device and a driving circuit disposed on a third substrate 310 in each sub-pixel region 101a, and the driving circuit includes a plurality of thin film transistors 111. The light-emitting device includes an anode 311, a light-emitting functional layer 312, and a cathode 313, and the anode 311 is electrically connected to the drain of the thin film transistor 111 serving as a driving transistor among the plurality of thin film transistors 111. The display substrate 31 also includes a pixel definition layer (PDL) 314, and the pixel definition layer 314 includes a plurality of opening regions, and one light-emitting device is disposed in one opening region.

[0067] In some embodiments, the light-emitting functional layer 312 includes a light-emitting layer. In other embodiments, the light-emitting functional layer 312 includes, in addition to the light-emitting layer, 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).

[0068] like Figure 3A As shown, the display substrate 31 further includes a planar layer 315 disposed between the thin film transistor 111 and the anode 311 .

[0069] When the touch display device 100 is a self-luminous display device, the touch display device 100 may be a top-emitting display device, in which case the anode 311 close to the third substrate 310 is opaque, and the cathode 313 away from the third substrate 310 is transparent or semi-transparent. The touch display device 100 may also be a bottom-emitting display device, in which case the anode 311 close to the third substrate 310 is transparent or semi-transparent, and the cathode 313 away from the third substrate 310 is opaque; the touch display device 100 may also be a double-sided emitting display device, in which case the anode 311 close to the third substrate 310 and the cathode 313 away from the third substrate 310 are both transparent or semi-transparent.

[0070] Those skilled in the art should understand that, when the touch display device 100 is a self-luminous display device, the touch display device 100 is more easily manufactured into a flexible display device. In this case, the third substrate 310 is a flexible substrate.

[0071] In the case where the touch display device 100 is a self-luminous display device, in some embodiments, such as Figure 3A As shown, the touch panel 01 is directly disposed on the encapsulation layer 32, that is, no other film layer is disposed between the touch panel 01 and the encapsulation layer 32. In other embodiments, such as Figure 3B As shown, the touch panel 01 is disposed on the substrate 6, and the substrate 6 is attached to the packaging layer 32 through the second optical adhesive 7. Figure 3A As shown, when the touch panel 01 is directly disposed on the encapsulation layer 32 , the thickness of the touch display device 100 is relatively small, which is conducive to achieving lightness and thinness.

[0072] The embodiment of the present application further provides a touch panel 01, which can be applied to the above-mentioned touch display device 100. Of course, the touch panel 01 can also be applied to other touch devices.

[0073] refer to Figure 4 The main structure of the touch panel 01 includes a substrate 10, a plurality of mutually independent sensing electrodes (sensors) 20 arranged on the substrate 10, and a plurality of touch wirings 30. The touch wirings 30 are arranged across the plurality of sensing electrodes 20 in their extending directions, and each sensing electrode 20 is electrically connected to at least one touch wiring 30.

[0074] Here, “independent of each other” means that the sensing electrodes 20 are not in contact with each other and are not electrically connected to each other.

[0075] In addition, any bearing layer that can be used to carry the sensing electrodes 20 and the touch wiring 30 can be used as the substrate 10 of the touch panel 01, and the substrate 10 is not limited. In the case where the touch panel 01 is applied to the above-mentioned touch display device 100, the substrate 10 of the touch panel 01 can be set separately, or one or more layers already in the display device can be reused as the substrate 10 of the touch panel 01. For example, the touch display device 100 is a liquid crystal display device, and the touch panel 01 is arranged between the upper polarizer 14 and the box substrate 12. In this case, the second substrate 120 in the box substrate 12 can be reused as the substrate 10 of the touch panel 01. For another example, the touch display device 100 is a self-luminous display device, and the touch panel 01 is directly arranged on the encapsulation layer 32. In this case, the encapsulation layer 32 can be reused as the substrate 10 of the touch panel 01.

[0076] The touch panel 01 provided in the embodiment of the present application is a self-capacitive touch panel. The principle of touch control of the touch panel 01 is: the sensing electrode 20 and the ground form a capacitor, that is, a self-capacitance. When a finger touches the touch panel 01, the capacitance of the finger will be superimposed on the sensing electrode 20, so that the capacitance value of the capacitance formed by the sensing electrode 20 and the ground changes. During touch detection, the coordinates of the touch point can be determined according to the change in the capacitance value of the capacitance formed by the multiple sensing electrodes 20 and the ground before and after the touch, so as to achieve touch control.

[0077] The following takes a sensing electrode 20 as an example to introduce the structure of the sensing electrode 20 , and the positional relationship and connection relationship between the sensing electrode 20 and the touch trace 30 .

[0078] refer to Figure 5A and Figure 5B The sensing electrode 20 includes a plurality of substantially parallel first conductive lines 201 and a plurality of substantially parallel second conductive lines 202 ; the plurality of second conductive lines 202 intersect the plurality of first conductive lines 201 , and the plurality of second conductive lines 202 electrically connect the plurality of first conductive lines 201 together.

[0079] It should be noted that, when the touch panel 01 is applied to the above-mentioned touch display device 100, in order to prevent the touch wiring 30 and the first conductive line 201 and the second conductive line 202 of the sensing electrode 20 from affecting the light output brightness of the sub-pixel area 101a, in some embodiments, the touch wiring 30 and the sensing electrode 20 are both located in the pixel defining area 101b.

[0080] Here, at least one first conductive line 201 and at least one second conductive line 202 may be a straight line. In some embodiments, each first conductive line 201 and each second conductive line 202 may be a straight line. Figure 5AAt least one first conductive line 201 and at least one second conductive line 202 may also be a bending line including a plurality of bending points. In some embodiments, each first conductive line 201 and each second conductive line 202 may be a bending line including a plurality of bending points. Figure 5B In the case where the touch panel 01 is applied to the touch display device 100 and the sensing electrode 20 is located in the pixel defining area 101b, the shapes of the first conductive line 201 and the second conductive line 202 can be set according to the shape and arrangement of the sub-pixel area 101a. For example, the shape of the sub-pixel area 101a is as follows: Figure 1 The hexagons shown are arranged as Figure 1 As shown, when the first conductive line 201 and the second conductive line 202 are located in the pixel defining area 101b, the first conductive line 201 and the second conductive line 202 need to be configured as bending lines including a plurality of bending points.

[0081] In the case where the first conductive line 201 and the second conductive line 202 are both bending lines including a plurality of bending points, in some embodiments, a portion of at least one first conductive line 201 overlaps with a portion of at least one second conductive line 202. In some examples, a portion of each first conductive line 201 overlaps with a portion of each second conductive line 202. Figure 5B The elliptical dotted circle in illustratively shows that a section of a first conductive line 201 overlaps with a section of a second conductive line 202 .

[0082] In addition, when the first conductive line 201 is a bending line including a plurality of bending points, Figure 5B , the first conductive line 201 can be considered to be composed of a periodic arrangement of bending line groups 201a, which are connected end to end. For any two first conductive lines 201, if the line connecting the starting point and the end point of the bending line group 201a in one first conductive line 201 is roughly parallel to the line connecting the starting point and the end point of the bending line group 201a in another first conductive line 201, then the two first conductive lines 201 are considered to be roughly parallel. It should be understood that although the first conductive line 201 can be considered to be composed of a periodic arrangement of bending line groups 201a, which are connected end to end, the first conductive line 201 is actually manufactured by a single patterning process, and there is no obvious boundary between two adjacent bending line groups 201a in the first conductive line 201, and the entire first conductive line 201 is continuous. Similarly, in the case where the second conductive line 202 is a bending line including multiple bending points, it can be determined whether any two second conductive lines 202 are roughly parallel according to the above method for determining whether any two first conductive lines 201 are roughly parallel.

[0083] like Fig. 6A and Figure 6BAs shown, for each sensing electrode 20 , at least two touch lines 30 pass through the sensing electrode 20 , and the at least two touch lines 30 are substantially parallel to the plurality of first conductive lines 201 .

[0084] Here, at least one touch line 30 may be a straight line. In some embodiments, each touch line 30 may be a straight line. Fig. 6A The straight line shown in FIG. 1 may also be a curved line including a plurality of bending points. In some embodiments, each touch line 30 is as follows: Figure 6B The bending line shown includes multiple bending points. When the touch panel 01 is applied to the touch display device 100, and the touch wiring 30 is located in the pixel defining area 101b, the shape of the touch wiring 30 can be set according to the shape and arrangement of the sub-pixel area 101a. No examples are given here, and the first conductive line 201 and the second conductive line 202 mentioned above can be specifically referred to.

[0085] In the case where the touch line 30 is a bending line including a plurality of bending points, Figure 6B , the touch line 30 can be considered to be composed of a periodic arrangement of bending line groups 30a and connected end to end. It should be understood that although the touch line 30 can be considered to be composed of a periodic arrangement of bending line groups 30a and connected end to end, the touch line 30 is actually formed by a single patterning process during production, and there is no obvious boundary between two adjacent bending line groups 30a in the touch line 30, and the entire touch line 30 is continuous. In addition, when the touch line 30 is a bending line including multiple bending points, in some embodiments, such as Figure 6B As shown, the first conductive line 201 and the second conductive line 202 are also bending lines including multiple bending points. In this case, for any touch line 30 and a first conductive line 201, if the line connecting the starting point and the end point of the bending line group 30a in the touch line 30 is substantially parallel to the line connecting the starting point and the end point of the bending line group 201a in the first conductive line 201, then the touch line 30 and the first conductive line 201 are considered to be substantially parallel. In the case where the touch line 30 is a bending line including multiple bending points and the first conductive line 201 is a straight line, if the line connecting the starting point and the end point of the bending line group 30a in the touch line 30 is parallel to the first conductive line 201, then the touch line 30 and the first conductive line 201 are considered to be substantially parallel. When the touch line 30 is a straight line and the first conductive line 201 is a bending line including multiple bending points, the touch line 30 is roughly parallel to the line connecting the starting point and the end point of the bending line group 201a in the first conductive line 201, and it is considered that the touch line 30 and the first conductive line 201 are roughly parallel.

[0086] In addition, when the touch line 30 is a bending line including multiple bending points, and the first conductive line 201 and the second conductive line 202 are also bending lines including multiple bending points, refer to Figure 6B , the orthographic projection of a portion of at least one touch trace 30 on the substrate 10 overlaps with the orthographic projection of a portion of at least one second conductive line 202 on the substrate 10. In some embodiments, the orthographic projection of a portion of each touch trace 30 on the substrate 10 overlaps with the orthographic projection of a portion of at least one second conductive line 202 on the substrate 10.

[0087] refer to Fig. 6A and Figure 6B The at least two touch lines 30 passing through the sensing electrode 20 include a first touch line 301 electrically connected to the sensing electrode 20 and a second touch line 302 not electrically connected to the sensing electrode 20; the orthographic projection of the second touch line 302 on the substrate 10 and the orthographic projection of the plurality of first conductive lines 201 in the sensing electrode 20 on the substrate 10 have no overlapping area.

[0088] It should be noted that the orthographic projection of the first touch control trace 301 on the substrate 10 and the orthographic projection of the plurality of first conductive lines 201 in the sensing electrode 20 on the substrate 10 may have an overlapping area or may not have an overlapping area.

[0089] refer to Figure 4 , a touch line 30 may pass through multiple sensing electrodes 20. For the sensing electrode 20 electrically connected to the touch line 30, the touch line 30 is a first touch line 301. For the sensing electrode 20 not electrically connected to the touch line 30, the touch line 30 is a second touch line 302. Based on this, in the embodiment of the present application, according to the connection relationship between each sensing electrode 20 and the at least two touch lines 30 passing through the sensing electrode 20, it is determined whether the at least two touch lines 30 passing through the sensing electrode 20 are the first touch lines 301 or the second touch lines 302. If the touch line 30 is electrically connected to the sensing electrode 20, then for the sensing electrode 20, the touch line 30 is the first touch line 301. If the touch line 30 is not electrically connected to the sensing electrode 20, then for the sensing electrode 20, the touch line 30 is the second touch line 301.

[0090] In addition, one sensing electrode 20 may be electrically connected to one first touch wiring 301 ; when the number of sensing electrodes 20 along the extension direction of the first conductive line 201 in the touch panel 01 is small, one sensing electrode 20 may be electrically connected to two or more first touch wirings 301 .

[0091] On this basis, reference Fig. 6A and Figure 6BThe orthographic projections of the sensing electrodes 20 in the touch panel 01 and the touch traces 30 passing through the sensing electrodes 20 on the substrate 10 form a plurality of meshes. When the touch panel 01 is applied to the above-mentioned touch display device 100, one sub-pixel area 101a corresponds to one mesh.

[0092] The embodiment of the present application provides a touch panel 01, which includes a substrate 10 and a sensing electrode 20 disposed on the substrate 10, wherein the sensing electrode 20 includes a plurality of substantially parallel first conductive lines 201 and a plurality of substantially parallel second conductive lines 202; the plurality of second conductive lines 202 intersect with the plurality of first conductive lines 201 and electrically connect the plurality of first conductive lines 201 together; the touch panel 01 also includes at least two touch control traces 30 disposed on the substrate 10 and passing through the sensing electrode 20; the at least two touch control traces 30 are substantially parallel to the plurality of first conductive lines 201; the at least two touch control traces 30 include a first touch control trace 301 electrically connected to the sensing electrode 20 and a second touch control trace 302 not electrically connected to the sensing electrode 30. The orthographic projection of the second touch control trace 302 on the substrate 10 and the orthographic projection of the plurality of first conductive lines 201 in the sensing electrode 30 on the substrate 10 have no overlapping area. In the related art, since the orthographic projections of the first conductive line 201 and the second touch line 302 on the substrate 10 have an overlapping area, the first conductive line 301 and the second touch line 302 will generate coupling capacitance, that is, parasitic capacitance. However, in the embodiment of the present application, since the orthographic projection of the second touch line 302 on the substrate 10 and the orthographic projections of the plurality of first conductive lines 201 in the sensing electrode 30 on the substrate 10 have no overlapping area, the second touch line 302 and the first conductive line 201 can be prevented from generating coupling capacitance, thereby effectively reducing the capacitive load of the sensing electrode 20, which is beneficial to improving the touch reporting rate and the signal-to-noise ratio.

[0093] It should be understood that, since the first touch line 301 is electrically connected to the sensing electrode 20, even if the orthographic projection of the first touch line 301 on the substrate 10 and the orthographic projection of the plurality of first conductive lines 201 in the sensing electrode 20 on the substrate 10 have an overlapping area, the first touch line 301 and the first conductive line 201 will not generate coupling capacitance.

[0094] Considering that the second touch control trace 302 also generates coupling capacitance at the intersection with the second conductive line 202, based on this, in some embodiments, such as Fig. 7A and Figure 7BAs shown, at least one of the plurality of second conductive lines 202 of the sensing electrode 20 includes a plurality of conductive segments disconnected from each other, and at least one conductive segment is connected to at least one first conductive line 201; the orthographic projection of the second touch control line 302 on the substrate 10 and the orthographic projection of the conductive segments other than the conductive segments used to connect the plurality of first conductive lines 201 together in the at least one conductive segment (referring to the conductive segments connected to the first conductive line 201) on the substrate 10 have no overlapping area. That is, the orthographic projections of the second touch control line 302 and other second conductive lines 202 on the substrate 10 have no overlapping area except the second conductive lines 202 used to electrically connect the plurality of first conductive lines 201 together; or, the orthographic projections of the second touch control line 302 and other conductive segments on the substrate 10 have no overlapping area except the conductive segments used to electrically connect the plurality of first conductive lines 201 together in the at least one conductive segment.

[0095] It should be noted that, for the second conductive line 202 including multiple conductive segments disconnected from each other, the multiple conductive segments in the second conductive line 202 can all be connected to the first conductive line 201; or some conductive segments can be connected to the first conductive line 201, and some conductive segments can be not connected to the first conductive line 201, and the conductive segments not connected to the first conductive line 201 are virtual conductive segments (also called dummy conductive segments).

[0096] Here, since the plurality of second conductive lines 202 electrically connect the plurality of first conductive lines 201 together, it can be as follows: Fig. 7A As shown, at least one second conductive line 202 is connected. Fig. 7A In the direction from top to bottom, the first second conductive line 202 is connected to the second second conductive line 202. In addition, the connected second conductive lines 202 may be located on the upper side and / or the lower side of the sensing electrode 20, or may be located at other positions. Fig. 7A In the example, the connected second conductive line 202 is located on the upper side of the sensing electrode 20. Of course, it can also be, for example Figure 7B As shown, each of the plurality of second conductive lines 202 in the sensing electrode 20 includes a plurality of conductive segments disconnected from each other, but the conductive segments in different second conductive lines 202 are connected through the first conductive line 201 to form at least one path 40 (see FIG. Figure 7B The dotted box in the figure indicates a passage), and the passage 40 can electrically connect the plurality of first conductive lines 201 together.

[0097] In addition, under the premise of ensuring that the plurality of second conductive lines 202 electrically connect the plurality of first conductive lines 201 together, the number of connected second conductive lines 202 can be appropriately increased according to the load and induction requirements of the sensing electrode 20, or the number of paths 40 formed by connecting the conductive segments in different second conductive lines 202 through the first conductive lines 201 can be increased. The more the number of connected second conductive lines 202 or the paths 40, the larger the overlapping area between the sensing electrode 20 and the first touch control line 301, and the induction amount during touch control will increase. When the touch panel 01 is used, if the thickness of the touch panel 01 is large, resulting in a low induction amount, the line width of the touch control line 30, the number of connected second conductive lines 202 or the paths 40 can be appropriately increased to increase the sensing area and improve the induction amount.

[0098] In addition, when the second conductive line 202 is cut so that the second conductive line 202 includes a plurality of conductive segments that are disconnected from each other, the closer the end points of the conductive segments in the second conductive line 202 are to the second touch line 302, the larger the sensing area retained by the sensing electrode 20 is, which is beneficial to improving the sensing amount. Based on this, when the second conductive line 202 is cut, the sensing electrode 20 should be retained as much as possible while avoiding the overlap of the orthographic projections of the second conductive line 202 and the second touch line 302 on the substrate 10 and taking into account the process tolerance (overlay).

[0099] In the embodiment of the present application, since the second conductive line 202 is truncated and hollowed out, at least one of the multiple second conductive lines 202 of the sensing electrode 20 includes multiple conductive segments disconnected from each other, and at least one conductive segment is connected to at least one first conductive line 201; the orthographic projection of the second touch line 302 on the substrate 10 and the orthographic projection of the conductive segments of the at least one conductive segment other than the conductive segments used to connect the multiple first conductive lines together on the substrate 10 have no overlapping area, so the coupling capacitance between the sensing electrode 20 and the second touch line 302 can be further reduced, thereby reducing the capacitive load.

[0100] In some embodiments, the first touch trace 301 is connected to at least two of the plurality of second conductive lines 202 in the sensing electrode 30, and at least two of the plurality of second conductive lines 202 are connected at the connection position between the first touch trace 301 and the sensing electrode 30. Figure 8 As shown, the first touch control trace 301 is connected to each second conductive line 202 in the sensing electrode 20 , and each second conductive line 202 is connected at the connection position with the first touch control trace 301 .

[0101] It should be understood that since the first touch line 301 is electrically connected to the sensing electrode 20 , even if the orthographic projection of the first touch line 301 on the substrate 10 and the orthographic projection of the second conductive line 202 on the substrate 10 have overlapping areas, no coupling capacitance is generated.

[0102] In the embodiment of the present application, since the first touch line 301 is connected to at least two of the plurality of second conductive lines 202 in the sensing electrode 20, it is possible to ensure that the first touch line 301 and the sensing electrode 20 have better conduction performance, and improve the connection reliability. In addition, in the case where the first touch line 301 is connected to the second conductive line 202 through a via hole on the insulating layer, since the resistance at the via hole is relatively large, if the first touch line 301 is connected to at least two of the plurality of second conductive lines 202 in the sensing electrode 20, the number of via holes will increase. In this way, when the via hole process causes the overlap resistance to fluctuate, the influence on the overall resistance of the sensing electrode 20 will be reduced, thereby ensuring better conduction performance and process stability between the first touch line 301 and the sensing electrode 20 at the via hole.

[0103] In some embodiments, the sensing electrode 20 includes a first region, and the touch traces 30 passing through the sensing electrode 20 and the plurality of first conductive lines 201 located in the first region are arranged alternately.

[0104] Here, it can be Fig. 6A , Figure 6B , Fig. 7A , Figure 7B as well as Figure 8 As shown in FIG. 1 , the first area is the area occupied by the sensing electrode 20, that is, the touch wiring 30 passing through the sensing electrode 20 is distributed on the entire sensing electrode 20. Fig. 9A and Fig. 9B As shown, the first area 02 is a partial area of ​​the area occupied by the sensing electrode 20. In this case, the sensing electrode 20 also includes a second area 03 located on at least one side of the first area 02 along the extension direction of the second conductive line 202; the first conductive lines 201 located in the second area 03 are arranged continuously. That is, the touch lines 30 are arranged in the first area 02, and are not provided in the second area 03. When the number of touch lines 30 passing through the sensing electrode 20 is small, the touch lines 30 can be arranged only in the first area 02 of the sensing electrode 20.

[0105] Based on the above, in some examples, the sensing electrode 20 includes a first region 02 and a second region 03 located on one side of the first region 02 along the extending direction of the second conductive line 202. In other examples, such as Fig. 9A and Fig. 9BAs shown, the sensing electrode 20 includes a first region 02 and two second regions 03 ; the two second regions 03 are respectively located at two opposite sides of the first region 02 along the extending direction of the second conductive line 202 .

[0106] In addition, at least two touch-sensing traces 30 are arranged alternately with the plurality of first conductive lines 201 located in the first area 02, which may be as follows: Fig. 6A , Figure 6B , Fig. 7A , Figure 7B , Figure 8 , Fig. 9A and Fig. 9B As shown, a first conductive line 201 and a touch control line 30 located in the first area 02 are arranged alternately. Fig. 10A As shown, at least two touch control traces 30 (see FIG. Fig. 10A Take two touch lines 30 arranged between two adjacent first conductive lines 201 as an example for illustration. In this case, the number of touch lines 30 arranged between two adjacent first conductive lines 201 may be the same or different. Fig. 10B As shown, at least two first conductive lines 201 (see FIG. Fig. 10B Take the example of setting two first conductive lines 201 between two adjacent touch lines 30 for illustration), in this case, the number of first conductive lines 201 set between two adjacent touch lines 30 may be the same or different. Of course, it is also possible that x first conductive lines 201 and y touch lines 30 are spaced apart, x ≥ 2, y ≥ 2, x, y are both positive integers, x and y may be the same or different. It should be understood that the arrangement of the touch lines 30 passing through the sensing electrode 20 and the multiple first conductive lines 201 located in the first area 02 includes but is not limited to the above-mentioned arrangements, and may also be other arrangements, which are not listed here one by one.

[0107] Based on the above, if the sensing electrode 20 includes a first region 02 and a second region 03 located on at least one side of the first region 02 along the extending direction of the second conductive line 202, when at least one of the plurality of second conductive lines 202 of the sensing electrode 20 includes a plurality of conductive segments disconnected from each other, as Fig. 9B As shown, the parts of the plurality of second conductive lines 202 located in the second area 03 are connected, and the part of at least one of the plurality of second conductive lines 202 of the sensing electrode 20 located in the first area 02 includes a plurality of conductive segments disconnected from each other.

[0108] Since the touch line 30 is located in the first area 02 of the sensing electrode 20, the touch line 30 and the two parts of the second conductive line 202 located in the second area have no overlapping area in the orthographic projection on the substrate 10, so the touch line 30 and the two parts of the second conductive line 202 located in the second area do not generate coupling capacitance. The parts of the multiple second conductive lines 202 located in the second area 03 are connected, which can increase the sensing area of ​​the sensing electrode 20 and improve the sensing amount.

[0109] When the first area 02 is the area occupied by the sensing electrode 20, in some embodiments, the at least two touch lines 30 (i.e., the touch lines 30 passing through the sensing electrode 20) include a plurality of effective touch lines for transmitting sensing signals and a plurality of virtual touch lines that are not used for transmitting sensing signals.

[0110] In the embodiment of the present application, when the number of sensing electrodes 20 arranged along the extension direction of the touch wiring 30 in the touch panel 01 is small, it is necessary to electrically connect to the sensing electrode 20, and the number of effective touch wirings for transmitting sensing signals will be small. In order to make the touch wiring 30 evenly distributed in the area occupied by the sensing electrode 20 to reduce the visualization risk of the touch wiring 30 and the sensing electrode 20, a virtual touch wiring can be set.

[0111] It should be noted that, since the effective touch control line is used to transmit the sensing signal, the effective touch control line must be electrically connected to the sensing electrode 20. For the effective touch control line passing through any sensing electrode 20, the effective touch control line can be electrically connected to the sensing electrode 20, or it can be electrically connected to other sensing electrodes 20 without being electrically connected to the sensing electrode 20. Since the virtual touch control line is not used to transmit the sensing signal, in some examples, the virtual touch control line is not connected to any sensing electrode 20. In other examples, the virtual touch control line includes a plurality of sub-virtual sensing electrode lines disconnected from each other, and the positive projection of each sub-virtual sensing electrode line on the substrate 10 has an overlapping area with the positive projection of a sensing electrode 20 on the substrate 10, and is electrically connected to the second conductive line 202 in the sensing electrode 20. In this case, the sub-virtual sensing electrode line is equivalent to a part of the sensing electrode 20. The sub-virtual sensing electrode line is electrically connected to the second conductive line 202, which can increase the area of ​​the sensing electrode 20 and improve the sensing amount during touch.

[0112] In addition, in some embodiments, the plurality of virtual touch lines are evenly distributed in the first region 02 of the sensing electrode 20, that is, the plurality of virtual touch lines are distributed on the entire sensing electrode 20. In other embodiments, the first region 02 includes a first sub-region and a second sub-region located on at least one side of the first sub-region along the extension direction of the second conductive line 202; the plurality of effective touch lines are located in the first sub-region, and the plurality of virtual touch lines are located in the second sub-region.

[0113] Among them, the first area 02 may include a first sub-area and a second sub-area located on one side of the first sub-area along the extension direction of the second conductive line 202; or the first area 02 may include a first sub-area and two second sub-areas, and the two second sub-areas are respectively located on opposite sides of the first sub-area along the extension direction of the second conductive line 202.

[0114] Based on the above, when the touch panel 01 is applied to a touch display device, a gap between two adjacent sub-pixel areas 101a, that is, a pixel defining area 101b between two adjacent sub-pixel areas 101a, can be provided with a touch wiring 30. When the number of touch wirings 30 is large, a plurality of touch wirings 30 can be provided in the gap between two adjacent sub-pixel areas 101a. In order to avoid the risk of visualization of the touch wirings 30 and the first conductive lines 201 and the second conductive lines 202 of the sensing electrode 20, all the first conductive lines 201 in the sensing electrode 20 and all the touch wirings 30 passing through the sensing electrode 20 should be distributed as evenly as possible.

[0115] In some embodiments, the plurality of first conductive lines 201 of the sensing electrode 20 and all the touch lines 30 passing through the sensing electrode 20 constitute a plurality of line groups; m sub-pixel regions 101 a are spaced between two adjacent line groups; m≥1, m is a positive integer; and the line group includes at least one first conductive line 201 and / or at least one touch line 30.

[0116] Here, the number of sub-pixel regions 101 a spaced apart between two adjacent wiring groups is the same.

[0117] In addition, the routing group may include at least one first conductive line 201, or at least one touch routing line 30. Alternatively, the routing group may include at least one first conductive line 201 and at least one touch routing line 30. On this basis, in order to reduce the visualization risk, the number of lines included in the routing group is the same.

[0118] For example, each routing group includes a first conductive line 201 and b touch routing lines 30, a≥1, b≥1, a, b are positive integers. For another example, the plurality of routing groups include a first routing group and a second routing group, the first routing group includes a first conductive line 201, and the second routing group includes a touch routing line 30.

[0119] In some embodiments, Fig.11A As shown, the touch line 30 and the sensing electrode 20 are arranged in different layers; the touch panel 01 also includes an insulating layer 50 arranged between the sensing electrode 20 and at least two touch lines 30; the first touch line 301 is connected to the sensing electrode 20 through a via hole on the insulating layer 50.

[0120] Here, the sensing electrode 20 may be closer to the substrate 10 relative to the touch wiring 30 ; or the touch wiring 30 may be closer to the substrate 10 relative to the sensing electrode 20 .

[0121] In addition, the material of the insulating layer 50 may be, for example, at least one of silicon nitride, silicon oxide, or silicon oxynitride.

[0122] In the embodiment of the present application, the touch wiring 30 and the sensing electrode 20 are arranged in different layers, so that the sensing electrode 20 can be prevented from being electrically connected to the second touch wiring 302 when manufacturing the touch panel 01 .

[0123] In other embodiments, Fig. 11B As shown, at least two touch lines 30 and the sensing electrode 20 are arranged in the same layer; when the second conductive line 202 is connected at the intersection with the second touch line 302, the second touch line 302 is connected at the intersection through a bridge 60, and an insulating layer 50 is arranged between the bridge 60 and the second conductive line 202; or, the second conductive line 202 is connected at the intersection through a bridge 60, and an insulating layer 50 is arranged between the bridge 60 and the second touch line 302.

[0124] Here, the touch wiring 30 and the sensing electrode 20 may be closer to the substrate 10 relative to the bridge 60 ; or the bridge 60 may be closer to the substrate 10 relative to the touch wiring 30 and the sensing electrode 20 .

[0125] In the embodiment of the present application, the touch wiring 30 and the sensing electrode 20 are arranged on the same layer, which can reduce the visualization risk caused by the height difference between the sensing electrode 20 and the touch wiring 30 due to being located in different layers.

[0126] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A touch panel, comprising: substrate; A sensing electrode disposed on the substrate; the sensing electrode comprises a plurality of substantially parallel first conductive lines and a plurality of substantially parallel second conductive lines; the plurality of second conductive lines intersect with the plurality of first conductive lines and electrically connect the plurality of first conductive lines together; At least two touch control traces are disposed on the substrate and pass through the sensing electrodes; the at least two touch control traces are substantially parallel to the plurality of first conductive lines; The at least two touch lines include a first touch line electrically connected to the sensing electrode and a second touch line not electrically connected to the sensing electrode; an orthographic projection of the second touch line on the substrate and an orthographic projection of the plurality of first conductive lines in the sensing electrode on the substrate have no overlapping area; Wherein, at least one of the plurality of second conductive lines of the sensing electrode comprises a plurality of conductive segments disconnected from each other, and at least one conductive segment is connected to at least one first conductive line; The orthographic projection of the second touch-control trace on the substrate has no overlapping area with the orthographic projection of the at least one conductive segment on the substrate except for the conductive segment used for connecting the plurality of first conductive lines together.

2. The touch panel according to claim 1, wherein: The first touch-control trace is connected to at least two of the plurality of second conductive lines, and at least two of the plurality of second conductive lines are connected at a position where the first touch-control trace is connected to the first touch-control trace.

3. The touch panel according to claim 1 or 2, wherein: The sensing electrode includes a first area, and the at least two touch control traces are arranged alternately with a plurality of first conductive lines located in the first area.

4. The touch panel according to claim 3, wherein: The sensing electrode further includes a second region located on at least one side of the first region along an extending direction of the second conductive line; The first conductive lines located in the second area are arranged continuously.

5. The touch panel according to claim 4, wherein: In the case where at least one of the plurality of second conductive lines of the sensing electrode includes a plurality of conductive segments disconnected from each other, Portions of the plurality of second conductive lines located in the second region are connected, and a portion of at least one of the plurality of second conductive lines of the sensing electrode located in the first region includes a plurality of conductive segments disconnected from each other.

6. The touch panel according to claim 4 or 5, wherein: The sensing electrode includes two second regions; the two second regions are respectively located at two opposite sides of the first region along an extending direction of the second conductive line.

7. The touch panel according to claim 3, wherein: The first area is the area occupied by the sensing electrode.

8. The touch panel according to claim 7, wherein: The at least two touch lines include a plurality of effective touch lines for transmitting sensing signals and a plurality of virtual touch lines not for transmitting sensing signals.

9. The touch panel according to claim 8, wherein: The plurality of virtual touch lines are evenly distributed in the first area of ​​the sensing electrode; Alternatively, the first region includes a first sub-region and a second sub-region located on at least one side of the first sub-region along the extending direction of the second conductive line; The plurality of effective touch lines are located in the first sub-area, and the plurality of virtual touch lines are located in the second sub-area.

10. The touch panel according to claim 1, wherein: The at least two touch lines and the sensing electrode are arranged in different layers; The touch panel further includes an insulating layer disposed between the sensing electrode and the at least two touch wirings; the first touch wiring is connected to the sensing electrode through a via hole on the insulating layer.

11. The touch panel according to claim 1, wherein: The at least two touch lines and the sensing electrode are arranged in the same layer; when the second conductive line is connected at the intersection with the second touch line, The second touch control wiring is connected at the intersection position via a bridge, and an insulating layer is provided between the bridge and the second conductive line; Alternatively, the second conductive lines are connected via a bridge at the intersection, and an insulating layer is provided between the bridge and the second touch control wiring.

12. The touch panel according to claim 1, wherein: At least one first conductive line and at least one second conductive line are bending lines including a plurality of bending points; A partial segment of the at least one first conductive line overlaps a partial segment of the at least one second conductive line.

13. The touch panel according to claim 1, wherein: At least one touch line is a bending line including a plurality of bending points; An orthographic projection of a portion of the at least one touch-sensing trace on the substrate overlaps with an orthographic projection of a portion of the at least one second conductive line on the substrate.

14. A touch display device, comprising the touch panel according to any one of claims 1 to 13.

15. The touch display device according to claim 14, wherein: The touch display device has a display area; the display area includes a plurality of sub-pixel areas and a pixel defining area for defining the plurality of sub-pixel areas; The touch control wiring and the sensing electrode are both located in the pixel definition area.

16. The touch display device according to claim 15, wherein: The plurality of first conductive lines of the sensing electrodes and the touch control lines passing through the sensing electrodes constitute a plurality of line groups; m sub-pixel regions are spaced between two adjacent line groups; m≥1, m is a positive integer; The wiring group includes at least one first conductive wire and / or at least one touch wiring.

17. The touch display device according to claim 15, wherein: The orthographic projections of the sensing electrodes in the touch panel and the touch wirings passing through the sensing electrodes on the substrate form a plurality of meshes, and one sub-pixel region corresponds to one mesh.

18. The touch display device according to any one of claims 14 to 17, wherein: The touch display device is a self-luminous display device; the self-luminous display device comprises a display substrate and a packaging layer for packaging the display substrate; The encapsulation layer is reused as the substrate of the touch panel.

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