Touch display substrate and display device

Abstract

A touch display substrate and a display device. The touch display substrate comprises a plurality of touch sensing structures (101), a plurality of pixel units (P0), and a plurality of data lines (DL); in a row direction, the pixel units (P0) each comprise M adjacent sub-pixels (Pxij), the plurality of data lines (DL) comprise a plurality of base periods, the base periods each comprise U1 data lines, a first base unit comprising M data lines, and U2 data lines which are arranged in sequence, and U1 data lines and U2 data lines between two adjacent first base units constitute a second base unit, wherein U1+U2=M, and the first base unit and second base unit which are adjacent to each other constitute a touch base unit; and the plurality of touch sensing structures (101) comprise a first touch sensing structure (1011) and second touch sensing structures (1012), wherein the first touch sensing structure (1011) corresponds to L1 adjacent touch base units and a first base unit or a second base unit located on one side of the L1 touch base units, and the second touch sensing structures (1012) correspond to L2 adjacent touch base units.

Description

Touch display substrate and display device Technical Field

[0001] The embodiments of the present disclosure relate to, but are not limited to, the field of communication technology, and in particular to a touch display substrate and a display device. Background Art

[0002] With the rapid development of display technology, touch screens have gradually become ubiquitous in people's lives. According to their structure, touch screens can be divided into add-on type (Add on Mode), surface covering type (On Cell), embedded type (In Cell), etc. According to their working principle, touch screens can be divided into capacitive type, resistive type, infrared type, surface acoustic wave type, etc. Capacitive touch screens work by utilizing the current induction phenomenon of the human body, support multi-touch, and have advantages such as wear resistance, long life, and low power consumption. They have been rapidly developed and have been widely used in electronic products such as mobile phones, tablets, laptops, televisions, monitors, digital photo frames, and navigation systems. Among various types of touch screens, capacitive touch screens are widely used due to their strong sensitivity and ability to achieve multi-touch. In order to reduce the thickness of the touch device, the embedded touch structure has received widespread attention. The embedded touch structure includes two types of touch: self-capacitive touch and mutual capacitance touch.

[0003] Summary of the Invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] In a first aspect, an embodiment of the present disclosure provides a touch display substrate, comprising a substrate and a plurality of touch sensing structures disposed on the substrate, a plurality of sub-pixels arranged in an array, and a plurality of data lines, the plurality of data lines extending in a column direction and arranged at intervals in a row direction; in the row direction, the data lines are located between two adjacent columns of sub-pixels and electrically connected to the two adjacent columns of sub-pixels; the plurality of sub-pixels form a plurality of pixel units arranged in an array, the pixel units comprising M adjacent sub-pixels arranged sequentially along the row direction, the plurality of data lines comprising a plurality of basic periods arranged sequentially along the row direction, the basic periods comprising U1 data lines, a first basic unit, and U2 data lines arranged sequentially along the row direction, the U1 data line and the U2 data line between two adjacent first basic units forming a second basic unit, the first basic unit comprising M adjacent data lines, the sum of U1 and U2 being M, and an adjacent first basic unit and a second basic unit forming a touch basic unit;

[0006] The multiple touch sensing structures include at least one first touch sensing structure and a plurality of second touch sensing structures, wherein the first touch sensing structure corresponds to adjacent L1 touch basic units, one of the first basic units located on one side of the L1 touch basic units, or one of the second basic units, and the second touch sensing structure corresponds to adjacent L2 touch basic units, where L1, L2, U1, and U2 are all positive integers;

[0007] The orthographic projection of the touch sensing structure on the substrate at least partially overlaps with the orthographic projection of the corresponding data line on the substrate.

[0008] In an exemplary embodiment, M is 3, U1 is 2, U2 is 1, and L1 is equal to L2.

[0009] Among the multiple data lines, 6 data lines form a basic cycle, and the data lines in one basic cycle include the first data line to the sixth data line arranged in sequence along the row direction; the U1 data lines include the first data line and the second data line, the first basic unit includes the third data line to the fifth data line arranged in sequence along the row direction, and the U2 data lines include the sixth data line.

[0010] In an exemplary embodiment, at least a portion of the data line includes a data line main body and a first bending structure connected to the data line main body. The data line main body extends along the column direction, is located between two adjacent columns of sub-pixels, and is configured to be electrically connected to sub-pixels located in at least one row of the two adjacent columns of sub-pixels. The first bending structure bends in the opposite direction of the row direction to bypass at least one row of sub-pixels in the two adjacent columns of sub-pixels. At least a portion of the first bending structure is located between two adjacent columns of sub-pixels and is configured to be electrically connected to the two adjacent columns of sub-pixels. In the column direction, in the same data line, at least one end of the first bending structure is connected to the data line main body.

[0011] In an exemplary embodiment, the first bending structure includes a first data structure portion, a second data structure portion, and a third data structure portion. In the column direction, the first data structure portion and the third data structure portion are located on both sides of the at least one row of sub-pixels in the two columns of sub-pixels bypassed by the first bending structure. Both ends of the second data structure portion are connected to the first data structure portion and the third data structure portion, respectively. The other ends of the first data structure portion and the third data structure portion are connected to the data line main portion. In the row direction, the second data structure portion is located between two adjacent columns of sub-pixels and is configured to be electrically connected to at least one row of sub-pixels in the two adjacent columns of sub-pixels.

[0012] In an exemplary embodiment, the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel.

[0013] In an exemplary embodiment, in the row direction, in the multiple sub-pixel columns corresponding to one of the touch sensing structures, the multiple sub-pixels in the first column of sub-pixels are second sub-pixels, the multiple sub-pixels in the second column of sub-pixels are third sub-pixels, and the multiple sub-pixels in the third column of sub-pixels are first sub-pixels; in the opposite direction of the row direction, in the multiple sub-pixel columns corresponding to one of the touch sensing structures, the multiple sub-pixels in the first column of sub-pixels are first sub-pixels, the multiple sub-pixels in the second column of sub-pixels are third sub-pixels, and the multiple sub-pixels in the third column of sub-pixels are second sub-pixels.

[0014] In an exemplary embodiment, in the row direction, among the plurality of data lines corresponding to one touch sensing structure, the first data line is a sixth data line, a main portion of the first data line is configured to be connected to sub-pixels in a first column and a second column corresponding to the touch sensing structure, and a second data structure portion of the first data line is configured to be connected to sub-pixels in a first-to-last column and a second-to-last column corresponding to an adjacent touch sensing structure in a direction opposite to the row direction;

[0015] In the opposite direction of the row direction, among the multiple data lines corresponding to the touch sensing structure, the first data line is the fifth data line, the main body of the first data line is set to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the second touch sensing structure, and the second data structure part of the first data line is set to be connected to the third column of sub-pixels and the fourth column of sub-pixels corresponding to the second touch sensing structure.

[0016] In an exemplary embodiment, in the row direction, among the plurality of data lines corresponding to one touch sensing structure, the first data line is a third data line, a main portion of the first data line is configured to be connected to sub-pixels in a first column and a second column corresponding to the touch sensing structure, and a second data structure portion of the first data line is configured to be connected to sub-pixels in a first-to-last column and a second-to-last column corresponding to an adjacent touch sensing structure in a direction opposite to the row direction;

[0017] In the opposite direction of the row direction, among the multiple data lines corresponding to the touch sensing structure, the first data line is the second data line, the main body of the first data line is set to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the touch sensing structure, and the second data structure part of the first data line is set to be connected to the third column of sub-pixels and the fourth column of sub-pixels corresponding to the touch sensing structure.

[0018] In an exemplary embodiment, in the row direction, the first data line corresponding to the first touch sensing structure is a sixth data line, and a main portion of the first data line is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure;

[0019] In the opposite direction of the row direction, the first touch sensing structure is the first data line corresponding to the second touch sensing structure is the fifth data line, and the second data structure portion of the first data line is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure.

[0020] In an exemplary embodiment, in the row direction, each data line is electrically connected to four adjacent columns of sub-pixels, each second data structure portion is electrically connected to a row of sub-pixels in two adjacent columns of sub-pixels, and a main body portion of the data line located between two adjacent first bending structures in the column direction is electrically connected to a row of sub-pixels in the other two adjacent columns of sub-pixels;

[0021] In the first data line and the fourth data line, the data line main portion of each data line is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column, and the second data structure portion of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column;

[0022] In the second data line and the fifth data line, the data line main portion of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column, and the second data structure portion of each data line is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column;

[0023] In the third data line and the sixth data line, the data line main body of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column, and the second data structure of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column.

[0024] In an exemplary embodiment, the pixel unit includes three types of sub-pixels, namely, a first sub-pixel, a second sub-pixel, and a third sub-pixel; among the first data line, the second data line, the fourth data line, and the fifth data line, two adjacent sub-pixels in the sub-pixels sequentially connected to each data line are sub-pixels of different types; and among the sub-pixels sequentially connected to each data line in the third data line and the sixth data line, two second sub-pixels are spaced between adjacent first sub-pixels and second sub-pixels.

[0025] In an exemplary embodiment, in the first data line and the fourth data line, the number of second sub-pixels connected to each data line is equal to the sum of the number of first sub-pixels and third sub-pixels connected thereto; in the second data line and the fifth data line, the number of first sub-pixels connected to each data line is equal to the sum of the number of second sub-pixels and third sub-pixels connected thereto; and in the third data line and the sixth data line, the number of third sub-pixels connected to each data line is equal to the sum of the number of first sub-pixels and second sub-pixels connected thereto.

[0026] In an exemplary embodiment, the polarities of the data signals provided by two adjacent data lines are opposite.

[0027] In an exemplary embodiment, the first sub-pixel is a sub-pixel that emits red light, the second sub-pixel is a sub-pixel that emits green light, and the third sub-pixel is a sub-pixel that emits blue light.

[0028] In an exemplary embodiment, the touch display substrate may further include a plurality of touch signal lines, wherein the plurality of data lines and the plurality of touch signal lines are alternately arranged along the row direction, the plurality of touch signal lines extend along the column direction and are arranged at intervals along the row direction, and the touch signal lines are electrically connected to the corresponding touch sensing structures through a column of vias.

[0029] In an exemplary embodiment, the touch display substrate includes a display area and a data binding end located on one side of the display area. In the display area, a touch sensing structure is electrically connected to two touch signal lines through two columns of vias, and the two touch signal lines are connected in parallel at their ends close to the data binding end.

[0030] In an exemplary embodiment, the via holes are provided in a column of sub-pixels adjacent to the corresponding touch signal line, and two sub-pixels where two adjacent via holes on one touch signal line are located may be spaced apart by at least one sub-pixel in the column direction.

[0031] In an exemplary embodiment, the touch display substrate may further include a virtual touch signal line, at least a portion of the touch sensing structure corresponds to at least one of the virtual touch signal lines, the orthographic projection of the virtual touch signal line on the substrate at least partially overlaps with the orthographic projection of the corresponding touch sensing structure on the substrate, and the touch sensing structure is electrically connected to the corresponding virtual touch signal line through a via.

[0032] In an exemplary embodiment, the touch display substrate may further include a third conductive layer, a fourth conductive layer, and a fifth conductive layer. The third conductive layer, the fourth conductive layer, and the fifth conductive layer are stacked in sequence in a direction perpendicular to the plane of the substrate. The third conductive layer includes the plurality of touch signal lines, each of which is provided with a touch electrode block. The fourth conductive layer includes the plurality of touch sensing structures. The fifth conductive layer includes a plurality of transfer electrodes. The vias, the touch transfer electrodes, and the touch electrode blocks are all rectangular structures. The plurality of transfer electrodes, the touch electrode blocks on the plurality of touch signal lines, and the plurality of vias correspond to each other in a one-to-one manner.

[0033] The orthographic projection of the via hole on the substrate is located within the range of the orthographic projection of the corresponding switching electrode on the substrate, and the orthographic projection of the switching electrode on the substrate is located within the range of the orthographic projection of the corresponding touch electrode block on the substrate;

[0034] The orthographic projection of the via hole on the substrate is at least partially covered by the orthographic projection of the corresponding touch sensing structure on the substrate, and at least partially not covered by the orthographic projection of the corresponding touch sensing structure on the substrate.

[0035] In an exemplary embodiment, the touch display substrate may further include a first conductive layer and a second conductive layer. In a direction perpendicular to the plane of the base, the first conductive layer is located between the second conductive layer and the base, and the second conductive layer is located between the first conductive layer and the third conductive layer. The touch display substrate may further include a frame area located around the display area. The plurality of data lines and the plurality of touch signal lines are alternately arranged along a row direction in the display area. The data lines are located in the second conductive layer, and the touch signal lines are located in the third conductive layer in the display area.

[0036] The border area includes a first border area. In the column direction, the first border area includes a first area, a second area, and the data binding end arranged in sequence, and the first area is located between the display area and the second area.

[0037] In the first area of ​​the first frame area, the touch signal lines are connected to the wiring in the first conductive layer through the first connecting vias, and the plurality of touch signal lines in the first conductive layer and the plurality of data lines in the second conductive layer are alternately arranged along the column direction;

[0038] In the second area of ​​the first frame area, the touch signal lines located in the first conductive layer are converted into lines located in the second conductive layer through second conversion vias, and multiple touch signal lines are divided into multiple touch signal lines of the first conductive layer and multiple touch signal lines of the second conductive layer. The touch signal lines of the first conductive layer and the touch signal lines of the second conductive layer are arranged alternately along the column direction.

[0039] In a second aspect, an embodiment of the present disclosure further provides a display device, comprising the touch display substrate described in any one of the above embodiments.

[0040] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are intended to provide a further understanding of the technical solutions of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solutions of the present disclosure and do not constitute a limitation of the technical solutions of the present disclosure. The shapes and sizes of each component in the drawings do not reflect the actual scale and are intended only to illustrate the contents of the present disclosure.

[0042] FIG1 is a schematic diagram of a planar structure of a touch display device;

[0043] FIG2 is a schematic diagram of a planar structure of a touch display substrate;

[0044] FIG3 is a schematic diagram of a planar structure of a touch display substrate provided by an embodiment of the present disclosure;

[0045] FIG4 is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0046] FIG5 is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0047] FIG6 is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0048] FIG7 is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0049] FIG8 a is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0050] FIG8 b is a partially enlarged schematic diagram of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0051] FIG9 a is a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0052] FIG9 b is a partially enlarged schematic diagram of a touch display substrate provided by an exemplary embodiment of the present disclosure;

[0053] FIG10 a is a schematic diagram of waveforms of six data lines in a basic cycle;

[0054] FIG10b is a schematic diagram showing the pulling effect of the data line on the touch sensing structure at position M in FIG10a;

[0055] FIG10c is a block diagram of various touch sensing structures;

[0056] FIG10 d is a schematic diagram showing the control of sub-pixels by six data lines in a basic cycle;

[0057] FIG10e is a schematic diagram of waveforms of the first three data lines in a basic cycle;

[0058] FIG10f is a schematic diagram showing the pulling effect of the data line at position G0 on the touch sensing structure in FIG10e;

[0059] FIG10g is a schematic diagram showing the status of a green screen display sub-pixel;

[0060] FIG11a is a schematic diagram of a planar structure of a display substrate provided by an exemplary embodiment of the present disclosure;

[0061] FIG11 b is a schematic diagram of a planar structure of a display substrate provided by an exemplary embodiment of the present disclosure;

[0062] FIG12a is a schematic diagram of a planar structure of a display substrate provided by an exemplary embodiment of the present disclosure;

[0063] FIG12 b is a schematic diagram of a planar structure of a display substrate provided by an exemplary embodiment of the present disclosure;

[0064] FIG13 is a partially enlarged schematic diagram of a display substrate provided by an exemplary embodiment of the present disclosure;

[0065] FIG14 is a partially enlarged schematic diagram of a display substrate provided by an exemplary embodiment of the present disclosure;

[0066] FIG15a is a schematic diagram of a partial structure after forming a third conductive layer and a fourth conductive layer according to an exemplary embodiment of the present disclosure;

[0067] FIG15 b is a schematic diagram of a partial structure after forming a fifth insulating layer according to an exemplary embodiment of the present disclosure;

[0068] FIG15c is a schematic diagram of a partial structure after forming a fifth conductive layer according to an exemplary embodiment of the present disclosure;

[0069] FIG15d is a schematic diagram of the cross-sectional structure at position AA in FIG15c;

[0070] FIG16a is a schematic diagram of a planar structure of a display substrate provided by an exemplary embodiment of the present disclosure;

[0071] FIG16b is a partial enlarged schematic diagram of the first area B11 in FIG16a;

[0072] FIG16c is a partial enlarged schematic diagram of the second area B12 in FIG16a;

[0073] FIG17 is a schematic diagram of a display device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0074] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The embodiments can be implemented in a number of different forms. A person of ordinary skill in the art can easily understand the fact that the methods and contents can be transformed into various forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. Unless there is a conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of some known functions and known components. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure. Other structures can refer to the general design

[0075] The scales of the figures in this disclosure are intended to serve as a reference for actual processes, but are not intended to be limiting. For example, the thickness and spacing of each film layer, and the width and spacing of each signal line, can be adjusted based on actual conditions. The figures described in this disclosure are merely schematic diagrams of the structures, and one embodiment of this disclosure is not limited to the shapes or values ​​shown in the figures.

[0076] In this specification, ordinal numbers such as “first”, “second” and “third” are provided to avoid confusion among constituent elements, and are not intended to limit the number.

[0077] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the direction in which each constituent element is described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0078] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure.

[0079] In this specification, "electrically connected" includes components connected together via an element having some electrical function. There are no particular limitations on the "element having some electrical function" as long as it enables the transfer of electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring but also switching elements such as transistors, resistors, inductors, capacitors, and other components with one or more functions.

[0080] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may be replaced with "conductive film." Similarly, "insulating film" may be replaced with "insulating layer."

[0081] The term "about" in the present disclosure refers to a numerical value that is not strictly defined and allows for process and measurement errors.

[0082] The "thickness" in this disclosure refers to the dimension of the film layer in the direction perpendicular to the substrate.

[0083] Capacitive on-cell touch panels are primarily categorized into mutual capacitance and self-capacitance structures. Mutual capacitance structures employ overlapping or adjacent drive and sensing electrodes to form mutual capacitance, utilizing changes in mutual capacitance for position detection. Self-capacitance structures utilize self-capacitance between the touch electrodes and the human body, utilizing changes in self-capacitance for position detection. Self-capacitive touch panels are single-layer structures characterized by low power consumption and a simple structure, while mutual capacitance touch panels are multi-layer structures with multi-touch capabilities.

[0084] In an exemplary embodiment, the touch display device may include a display substrate arranged on a substrate and a touch panel arranged on the display substrate. The display substrate may be a liquid crystal display (LCD) substrate, or may be an organic light emitting diode (OLED) display substrate, or may be a plasma display device (PDP) display substrate, or may be an electrophoretic display (EPD) display substrate. In an exemplary embodiment, the display substrate is an OLED display substrate, and the OLED display substrate may include a substrate, a driving circuit layer arranged on the substrate, a light emitting structure layer arranged on the driving circuit layer, and an encapsulation layer arranged on the light emitting structure layer. The touch panel is arranged on the encapsulation layer of the display substrate to form a touch structure on thin film encapsulation (Touch on Thin Film Encapsulation, referred to as Touch on TFE) structure. The display structure and the touch structure are integrated together, and have the advantages of being light, thin, and foldable, and can meet the product requirements of flexible folding, narrow frame, etc.

[0085] Currently, Touch on TFE structures primarily include the Flexible Multi Layer On Cell (FMLOC) and Flexible Single Layer On Cell (FSLOC) structures. The FMLOC structure is based on the principle of mutual capacitance detection, typically using two layers of metal to form the drive (Tx) and sense (Rx) electrodes. The integrated circuit (IC) detects the mutual capacitance between the drive and sense electrodes to achieve touch control. The FSLOC structure is based on the principle of self-capacitance (or voltage) detection, typically using a single layer of metal to form the touch electrodes. The IC detects the self-capacitance (or voltage) of the touch electrodes to achieve touch control.

[0086] Figure 1 is a schematic structural diagram of a touch display device. The touch display device shown in Figure 1 can be an embedded touch display device using self-capacitive touch technology. As shown in Figure 1, in the embedded touch display device, the touch display device may include a plurality of touch sensing blocks (as self-capacitive electrodes) 101 arranged in an array, and touch signal lines 102 electrically connected to the touch sensing blocks 101 respectively. The black dots in Figure 1 indicate electrical connections. The touch control circuit 103 is located on one side of the touch area 100 of the touch display device. The touch signal line 102 can electrically connect the touch sensing block 101 to the touch control circuit 103. When a touch is performed, a touching object (for example, a human finger) touches the touch area 100 of the touch display device, and the capacitance of the touched touch sensing block 101 changes. The touch control circuit 103 is configured to determine the touch position by detecting the change in the self-capacitance of the touch sensing block 101.

[0087] FIG2 is a schematic diagram of a front view of an array substrate. The touch display device may include an array substrate. As shown in FIG2 , the array substrate may include a display area AA and a frame area BB located on at least one side of the display area AA. The frame area BB may include a first frame area B1 located on one side of the display area AA and a second frame area B2 located on the other side of the display area AA. The first frame area B1 may include a binding area 200. For example, the first frame area B1 may include a lower frame of the array substrate, and the second frame area B2 may include an upper frame, a left frame, and a right frame of the array substrate. For example, the touch control circuit 103 may be located in the second frame area B2. The touch area 100 may be located in the display area AA. For example, the boundary of the orthographic projection of the touch area 100 on the plane where the array substrate is located coincides with the boundary of the orthographic projection of the display area AA on the plane where the array substrate is located.

[0088] In one exemplary embodiment, as shown in FIG2 , the display area AA may include: a plurality of data lines DL and a plurality of gate lines GL disposed on a substrate. The plurality of gate lines GL may extend along a first direction X and be sequentially arranged along a second direction Y different from the first direction X. The plurality of data lines DL may extend along the second direction Y and be sequentially arranged along the first direction X. The first direction X and the second direction Y may intersect; for example, the first direction X may be perpendicular to the second direction Y. The plurality of data lines DL and the plurality of gate lines GL may be located in different film layers; for example, the plurality of data lines DL may be located on a side of the plurality of gate lines GL away from the substrate.

[0089] In an exemplary embodiment, as shown in FIG2 , a plurality of data lines DL and a plurality of gate lines GL may intersect to form a plurality of sub-pixel areas. The area defined by the intersection of adjacent data lines DL and adjacent gate lines GL may be a sub-pixel area. A sub-pixel may be provided in a corresponding sub-pixel area. The sub-pixel area may include an opening area and a non-opening area surrounding the opening area. The non-opening area may be an area blocked by the black matrix of the opposing substrate of the array substrate, and the opening area may be an area not blocked by the black matrix of the opposing substrate. Adjacent gate lines GL and data lines DL may both be located within the non-opening area. The array substrate of the disclosed embodiment may be used to implement a display function, and the opening area of ​​each sub-pixel area may be configured for display. The non-opening area may surround the opening area and not display. However, the disclosed embodiment is not limited to this. In some examples, the array substrate may be used to implement other functions.

[0090] In one exemplary embodiment, the display area AA may include multiple pixel units disposed on a substrate. At least one pixel unit may include three sub-pixels (e.g., a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged sequentially along a first direction X). The three sub-pixels of the pixel unit may be, for example, a blue sub-pixel, a red sub-pixel, and a green sub-pixel, and the three sub-pixels may be arranged sequentially in the order of blue sub-pixel, red sub-pixel, and green sub-pixel. As shown in FIG2 , at least one sub-pixel may include a first electrode 10 and a second electrode (not shown in FIG2 ), and the orthographic projections of the first electrode 10 and the second electrode of the sub-pixel on the plane of the substrate may partially overlap. The second electrodes of the multiple sub-pixels in the display area AA may be integral structures. For example, the second electrode may be located on a side of the first electrode 10 away from the substrate. The sub-pixel may also include a transistor 30. The transistor 30 may be located near the intersection of a data line DL and a gate line GL. The transistor 30 may include a gate, a first electrode, and a second electrode. The gate may be electrically connected to the gate line GL, the first electrode of the transistor 30 may be electrically connected to the data line DL, and the second electrode may be electrically connected to the first electrode 10 of a sub-pixel. The transistor 30 can be configured to provide a data signal transmitted by the data line DL to the first electrode 10 of the subpixel under the control of the gate line GL. For example, in the embodiment of the present disclosure, the first electrode 10 can be a pixel electrode of the subpixel, and the second electrode can be a common electrode of the subpixel.

[0091] In an exemplary embodiment, the second border area B2 may include at least a gate drive circuit (e.g., including a plurality of cascaded shift registers), and the plurality of shift registers may be electrically connected to the plurality of gate lines GL in the display area AA. The gate drive circuit may further include a transistor. The structure of the transistor located in the second border area B2 may be the same as or different from the structure of the transistor located in the display area AA.

[0092] Most touch display products use a single-gate structure. In this structure, a scan signal line is set between two adjacent rows of pixels, and a data signal line provides data signals to one column of sub-pixels. Because in-cell touch screens require both display signals and touch signals, they require a relatively large number of data driver chips (driver ICs). Data driver chips are generally expensive, resulting in relatively high costs for in-cell touch display panels. Dual-gate in-cell touch display products can, to a certain extent, reduce the number of driver ICs and lower costs. In a dual-gate structure, two scan signal lines are provided between two adjacent rows of pixels, and one data signal line can provide data signals to two adjacent sub-pixels in a row. However, in dual-gate touch display panels, vertical streaks can occur in the active area. For example, vertical streaks are prone to appear at fixed locations within the active area of ​​the touch display panel. Within the active area, vertical streaks are lighter on the side near the data pad (DP) (i.e., the side near the binding area 200) and heavier on the side near the data pad opposite (DPO) (i.e., the side away from the binding area 200). In some cases, the vertical streaks disappear in the second direction D2 at a position approximately one-quarter of the active area length on the side near the DPO.

[0093] An exemplary embodiment of the present disclosure provides a touch display substrate, which may include a substrate, a plurality of touch sensing structures disposed on the substrate, a plurality of sub-pixels arranged in an array, and a plurality of data lines, the plurality of data lines extending in a column direction and arranged at intervals in a row direction; in the row direction, the data lines are located between two adjacent columns of sub-pixels and electrically connected to the two adjacent columns of sub-pixels; the plurality of sub-pixels form a plurality of pixel units arranged in an array, the pixel units including M adjacent sub-pixels arranged sequentially along the row direction; the plurality of data lines include a plurality of basic periods arranged sequentially along the row direction, the basic periods including U1 data lines, a first basic unit, and U2 data lines arranged sequentially along the row direction; the U1 data line and the U2 data line between two adjacent first basic units constitute a second basic unit; the first basic unit includes M adjacent data lines, the sum of U1 and U2 being M; and an adjacent first basic unit and a second basic unit constitute a touch basic unit;

[0094] The multiple touch sensing structures include at least one first touch sensing structure and a plurality of second touch sensing structures, wherein the first touch sensing structure corresponds to adjacent L1 touch basic units, one of the first basic units located on one side of the L1 touch basic units, or one of the second basic units, and the second touch sensing structure corresponds to adjacent L2 touch basic units, where L1, L2, U1, and U2 are all positive integers;

[0095] The orthographic projection of the touch sensing structure on the substrate at least partially overlaps with the orthographic projection of the corresponding data line on the substrate.

[0096] In a touch display substrate provided by an embodiment of the present disclosure, a plurality of sub-pixels arranged in an array form a plurality of pixel units arranged in an array. The pixel unit includes M adjacent sub-pixels arranged sequentially along a row direction. The plurality of data lines includes a plurality of basic periods arranged sequentially along the row direction. The basic period includes U1 data lines, a first basic unit, and U2 data lines arranged sequentially along the row direction. The U1 data line and the U2 data line between two adjacent first basic units constitute a second basic unit. The first basic unit includes M adjacent data lines, where the sum of U1 and U2 is M. An adjacent first basic unit and a second basic unit constitute a touch basic unit. The plurality of touch sensing structures includes at least one first touch sensing structure and a plurality of second touch sensing structures. The first touch sensing structure corresponds to adjacent L1 touch basic units, a first basic unit located to one side of the L1 touch basic unit, or a second basic unit. The second touch sensing structure corresponds to adjacent L2 touch basic units. The solution provided by the embodiment of the present disclosure can, to a certain extent, solve the technical problem of poor vertical stripes on the touch display substrate.

[0097] In an exemplary embodiment, as shown in FIG3 , a touch display substrate provided by an exemplary embodiment of the present disclosure may include a substrate and a plurality of touch sensing structures 101 disposed on the substrate, a plurality of sub-pixels Pxij arranged in an array, and a plurality of data lines DL, wherein the plurality of data lines DL may extend along a column direction Y and be arranged at intervals along a row direction X; in the row direction X, the data line is located between two adjacent columns of sub-pixels and is electrically connected to the two adjacent columns of sub-pixels; the plurality of sub-pixels form a plurality of pixel units P0 arranged in an array, and the pixel unit P0 includes a plurality of sub-pixels Pxij arranged in an array along the row direction X. M adjacent sub-pixels Pxij are arranged, the multiple data lines DL may include multiple basic periods arranged in sequence along the row direction X, the basic period may include U1 data lines DL, a first basic unit R1, and U2 data lines DL arranged in sequence along the row direction X, the U1 data line and the U2 data line between two adjacent first basic units R1 constitute a second basic unit R2, the first basic unit R1 includes M adjacent data lines DL, the sum of U1 and U2 is M, and an adjacent first basic unit R1 and a second basic unit R2 constitute a touch basic unit R0;

[0098] The multiple touch sensing structures 101 may include at least one first touch sensing structure 1011 and multiple second touch sensing structures 1012. The first touch sensing structure 1011 corresponds to L1 adjacent touch basic units R0, a first basic unit R1 located on one side of the L1 touch basic units R0, or a second basic unit R2. The second touch sensing structure 1012 corresponds to L2 adjacent touch basic units R0. L1, L2, U1, and U2 are all positive integers.

[0099] The orthographic projection of the touch sensing structure 101 on the substrate may at least partially overlap with the orthographic projection of the corresponding data line DL on the substrate.

[0100] In an exemplary embodiment, the M data lines in the first basic unit R1 pull the potential of the corresponding touch sensing structure 101 to 0, and the M data lines in the second basic unit R2 pull the potential of the corresponding touch sensing structure 101 to 0. That is, the first basic unit R1 and the second basic unit R2 have no effect on the potential change of the corresponding touch sensing structure, which can avoid the phenomenon of vertical stripes caused by the potential pulling of the data lines on the touch sensing structure 101.

[0101] In an exemplary embodiment, the first radical units R1 and the second radical units R2 may be alternately arranged along the row direction X.

[0102] In an exemplary embodiment, in the row direction X, the two touch sensing structures 101 located on both sides of the first sensing structure 1011 may both be second touch sensing structures 1012, or both may be first touch sensing structures 1011, or one side may be the first touch sensing structure 1011 and the other side may be the second touch sensing structure 1012.

[0103] In an exemplary embodiment, M is 3, U1 is 2, and U2 is 1. The values ​​of L1 and L2 may be equal. Among the plurality of data lines DL, six data lines form a basic period, and the data lines in a basic period may include first to sixth data lines DL1 to DL6 arranged sequentially along the row direction X. The U1 data lines may include the first data line DL1 and the second data line DL2. The first basic unit R1 may include third to fifth data lines DL3 to DL5 arranged sequentially along the row direction X. The U2 data lines DL may include the sixth data line DL6. In an exemplary embodiment, the values ​​of L1 and L2 being equal may enable the dimensions of the plurality of touch sensing structures 101 to be substantially consistent. For example, the dimensions of the plurality of touch sensing structures 101 may be substantially equal. The dimensions of the first touch sensing structure 1011 and the second touch sensing structure 1012 in the row direction X may differ by the length of one first basic unit R1 or one second basic unit R2 in the row direction X.

[0104] In an exemplary embodiment, the polarities of the data signals provided by two adjacent data lines DL may be opposite. For example, during operation of the touch display substrate, the data signal provided by one of the two adjacent data lines may be a high-level signal, while the data signal provided by the other data line may be a low-level signal.

[0105] In an exemplary embodiment, at grayscale L127 displaying a green image, the signals provided by two adjacent data lines DL are inverted signals (ie, opposite polarities). For example, the first data line DL1 provides a high level signal, and the second data line DL2 provides a low level signal.

[0106] The technical solutions of the embodiments of the present disclosure are described in detail below through specific examples.

[0107] As shown in FIG4 and FIG5, a schematic diagram of a planar structure of a touch display substrate provided by an exemplary embodiment of the present disclosure may include a substrate, which may include a display area AA. In a direction perpendicular to the plane of the substrate, the display area AA may include a plurality of sub-pixels Pxij, a plurality of touch sensing structures (i.e., touch sensing blocks) 101, a plurality of data lines DL, a plurality of gate lines GL, and a plurality of touch signal lines 102 disposed on the substrate. The plurality of sub-pixels Pxij may be arranged in an array, the plurality of data lines GL may extend along the column direction Y and be arranged at intervals along the row direction X, and the plurality of gate lines GL may extend along the row direction X and be arranged at intervals along the column direction. In the row direction X, the main body of each data line DL may be arranged at intervals along the row direction X. It can be located between two adjacent columns of sub-pixels, and each touch signal line 102 can be located between two adjacent columns of sub-pixels; in the column direction Y, each gate line GL can be located between two adjacent rows of sub-pixels; a sub-pixel row can include multiple pixel units, each pixel unit can include M adjacent sub-pixels, and the positive projection of each touch sensing structure 101 on the substrate overlaps with the positive projection of at least part of the sub-pixels in N columns of sub-pixels on the substrate, where N is an integer multiple of M; the gate line GL is configured to be electrically connected to one of the adjacent rows of sub-pixels, the data line GL is configured to be electrically connected to at least one adjacent column of sub-pixels, and the touch signal line 102 is configured to be electrically connected to one of the touch sensing structures 101.

[0108] In an exemplary embodiment, the value of M may be 3, and the value of N may be an integer multiple of 3, for example, the value of N may be 3 or 6.

[0109] In an exemplary embodiment, as shown in FIG4 , which is a schematic planar structure diagram of a touch display substrate with a single-gate structure, a gate line GL is disposed between two adjacent rows of sub-pixels. Each gate line GL is electrically connected to one of the adjacent rows of sub-pixels and provides a scan signal to the connected row of sub-pixels. A data line DL and a touch signal line 102 are disposed between two adjacent columns of sub-pixels. Each data line DL is electrically connected to one of the columns of sub-pixels and provides a data signal to the connected column of sub-pixels. At least some touch signal lines 102 are electrically connected to corresponding touch sensing structures 101 through vias VTx. In the structure shown in FIG4 , one touch sensing structure 101 can overlap with the orthographic projection of at least some of the six columns of sub-pixels Pxij on the substrate.

[0110] In an exemplary embodiment, as shown in FIG4 , multiple sub-pixels form multiple pixel units P0 . The multiple pixel units P0 can be arranged in an array, and each pixel unit P0 can include three sub-pixels (i.e., M is 3). The three sub-pixels in the same pixel unit can be arranged sequentially along the row direction X. The orthographic projection of each touch sensing structure 101 on the substrate can overlap with the orthographic projections of at least some of the sub-pixels in six columns of sub-pixels on the substrate. i.e., N can be 6, and M can be 3. That is, in the row direction X, each touch sensing structure 101 can correspond to at least some of the pixel units in two complete columns of pixel units. Typically, one touch sensing structure 101 can correspond to 10 to 80 pixel units P0 in two columns of pixel units. i.e., the orthographic projection of one touch sensing structure 101 on the substrate can overlap with the orthographic projections of 10 to 80 pixel units P0 in two columns of pixel units. FIG4 shows that one touch sensing structure 101 corresponds to 16 pixel units in two columns of pixel units. In an exemplary embodiment, in the touch display substrate with a single gate structure shown in FIG4 , each touch sensing structure 101 corresponds to a complete pixel unit P0 . For example, as shown in FIG4 , one touch sensing structure 101 corresponds to 16 pixel units P0 .

[0111] In an exemplary embodiment, as shown in FIG5 , a schematic planar structure of a touch display substrate with a dual-gate structure is shown. Two gate lines GLn (n is a positive integer) can be provided between two adjacent rows of sub-pixels. Each gate line GLn is electrically connected to one of the adjacent rows of sub-pixels and provides a scanning signal to the connected row of sub-pixels. In the row direction X, data lines DLm (m is a positive integer) and touch signal lines 102 can be located on both sides of a column of sub-pixels. Each data line DLm can be located between two adjacent columns of sub-pixels, and each touch signal line 102 can be located between two adjacent columns of sub-pixels. Each data line DLm is electrically connected to two adjacent columns of sub-pixels and provides a data signal to the two connected columns of sub-pixels. At least some touch signal lines 102 are electrically connected to corresponding touch sensing structures 101 through vias VTx. In the structure shown in FIG5 , one touch sensing structure 101 can overlap with the orthographic projection of at least some of the six columns of pixel cells P0 on the substrate.

[0112] In an exemplary embodiment, as shown in FIG5 , at least a portion of the data line DLm may include a data line main portion ZDL and a first bending structure ZL1 connected to the data line main portion ZDL, and at least a portion of the touch signal line 102 may include a touch signal line main portion 1021 and a second bending structure ZL2 connected to the touch signal line 102; the data line main portion ZDL may extend along a column direction Y, be located between two adjacent columns of sub-pixels, and be configured to be electrically connected to sub-pixels located in at least one row of the two adjacent columns of sub-pixels, the first bending structure ZL1 may be bent in a direction opposite to the first direction (i.e., the row direction) X to bypass at least one row of sub-pixels in the two adjacent columns of sub-pixels, and at least a portion of the first bending structure ZL1 may extend along a column direction Y, be located between two adjacent columns of sub-pixels, and be configured to be electrically connected to sub-pixels located in at least one row of the two adjacent columns of sub-pixels. It is located between two adjacent columns of sub-pixels and is configured to be electrically connected to the two adjacent columns of sub-pixels. In the column direction Y, in the same data line DLm, at least one end of the first bending structure ZL1 is connected to the data line main body ZDL; the touch signal line main body 1021 can extend along the column direction Y and be located between two adjacent columns of sub-pixels. The second bending structure ZL2 can be bent in the opposite direction of the first direction (i.e., the row direction) X to bypass at least one row of sub-pixels in the two adjacent columns of sub-pixels. At least part of the structure of the second bending structure ZL2 is located between the two adjacent columns of sub-pixels. In the column direction Y, in the same touch signal line 102, at least one end of the second bending structure ZL2 is connected to the touch signal line main body 1021.

[0113] In an exemplary embodiment, as shown in FIG5 , the first bending structure ZL1 may include a first data structure portion ZL11, a second data structure portion ZL12, and a third data structure portion ZL13. In the column direction Y, the first data structure portion ZL11 and the third data structure portion ZL13 may be located on both sides of at least one row of sub-pixels in the two columns of sub-pixels bypassed by the first bending structure ZL1. Both ends of the second data structure portion ZL12 are connected to the first data structure portion ZL11 and the third data structure portion ZL13, respectively. The other ends of the first data structure portion ZL11 and the third data structure portion ZL13 may be connected to the data line main portion ZDL. In the row direction X, the second data structure portion ZL12 may be located between two adjacent columns of sub-pixels, and is arranged to be aligned with the corresponding data line main portion ZDL. At least one row of sub-pixels in two adjacent columns of sub-pixels is electrically connected; the second bending structure ZL2 may include a first touch structure portion ZL21, a second touch structure portion ZL22 and a third touch structure portion ZL23. In the column direction Y, the first touch structure portion ZL21 and the third touch structure portion ZL23 may be located on both sides of at least one row of sub-pixels in the two columns of sub-pixels bypassed by the second bending structure ZL2, two ends of the second touch structure portion ZL22 are respectively connected to the first touch structure portion ZL21 and the third touch structure portion ZL23, the other ends of the first touch structure portion ZL21 and the third touch structure portion ZL23 may be connected to the touch signal line main body 1021, and in the row direction X, the second touch structure portion ZL22 may be located between two adjacent columns of sub-pixels.

[0114] In an exemplary embodiment, as shown in FIG5 , at least one row of sub-pixels in the two columns of sub-pixels that the first bending structure ZL1 bends around in the direction opposite to the first direction X may coincide with at least one row of sub-pixels in the two columns of sub-pixels that the second bending structure ZL2 bends around in the direction opposite to the first direction X. For example, the first bending structure ZL1 and the second bending structure ZL2 both bend around one row of sub-pixels in the two columns of sub-pixels in the direction opposite to the first direction X, and the rows of sub-pixels that the first bending structure ZL1 and the second bending structure ZL2 bend around coincide with each other. In an exemplary embodiment, as shown in FIG5 , the rows of sub-pixels that the first bending structure ZL1 and the second bending structure ZL2 bend around may be the same; for example, the first bending structure ZL1 and the second bending structure ZL2 bend around even-numbered sub-pixel rows, while odd-numbered sub-pixel rows are not bend around by the first bending structure ZL1 and the second bending structure ZL2.

[0115] In an exemplary embodiment, as shown in Figures 5 to 7, multiple sub-pixels form multiple pixel units P0, and the multiple pixel units P0 can be arranged in an array. Each pixel unit P0 can include three sub-pixels (that is, the value of M is 3). The three sub-pixels in the same pixel unit can be arranged sequentially along the row direction X. The orthographic projection of each touch sensing structure 101 on the substrate can overlap with the orthographic projection of at least some of the sub-pixels in 18 columns of sub-pixels on the substrate, that is, the value of N can be 18, that is, in the row direction X, each touch sensing structure 101 can correspond to at least some of the pixel units in 6 complete columns of pixel units. Typically, a touch sensing structure 101 can correspond to 10 to 80 pixel units P0 in 6 columns of pixel units, that is, the orthographic projection of a touch sensing structure 101 on the substrate can overlap with the orthographic projection of 10 to 80 pixel units P0 in 6 columns of pixel units on the substrate. Figures 5 and 6 show that a touch sensing structure 101 corresponds to 36 pixel units P0 in 6 columns of pixel units, so that the width of a touch sensing structure 101 in the row direction and the column direction can be roughly the same.

[0116] In an exemplary embodiment, typically, as shown in FIG7 , one touch sensing structure 101 may correspond to 6w data lines DLm, that is, in the row direction X, the orthographic projection of one touch sensing structure 101 on the substrate may at least partially overlap with the orthographic projections of the 6w data lines DLm on the substrate, where w is a positive integer. FIG7 shows that one touch sensing structure 101 corresponds to six data lines DLm (DL1 to DL6), that is, the value of w is 1. It should be noted that the correspondence between one touch sensing structure 101 and six data lines DL shown in FIG7 is for illustrative purposes only. Typically, one touch sensing structure 101 corresponds to approximately 40 pixel units PO, and the number of data lines DL corresponding to one touch sensing structure is typically more than six. In an actual structure, the number of corresponding data lines DL may be determined based on the size of the touch sensing structure 101 and touch accuracy, so long as one touch sensing structure 101 corresponds to 6w data lines DL. As shown in FIG5 and FIG6, in the row direction X, when the number of data lines DLm corresponding to a touch sensing structure 101 is not an integer multiple of 6, the touch sensing structure 101 in the touch display substrate may include one or more first touch sensing structures 1011, and the number of the first touch sensing structures 1011 may be divided according to the specific structure; in an exemplary embodiment, among the multiple data lines DL in the touch display substrate, 6 data lines may be used as a basic period, and the 6 data lines in a basic period may include the first data line DL1 to the sixth data line DL6 (that is, m is 6 data lines) arranged in sequence along the row direction X. (may be 1 to 6). In the row direction X, a first touch sensing structure 101 may correspond to L1 adjacent touch basic units R0, a first basic unit R1 located to one side of the L1 touch basic units R0, or a second basic unit R2. A second touch sensing structure 1012 may correspond to L2 adjacent touch basic units R0. A touch basic unit R0 may include a first basic unit R1 and a second basic unit R2 arranged sequentially along the row direction X, or a touch basic unit R0 may include a first basic unit R1 and a second basic unit R2 arranged sequentially in the opposite direction of the row direction X. That is, as shown in Figures 5 and 6, when the number of data lines DLm corresponding to a touch sensing structure 101 is not an integer multiple of 6, a first touch sensing structure 1011 may correspond to L1*6+3 adjacent data lines DLm, and a second touch sensing structure 1012 may correspond to L2*6 adjacent data lines DLm. The values ​​of L1 and L2 are both positive integers. In an exemplary embodiment, the values ​​of L1 and L2 are equal, so that the sizes of the plurality of touch sensing structures 101 are substantially consistent.

[0117] In an exemplary embodiment, FIG5 shows a complete first touch sensing structure 1011, and FIG6 shows a complete first touch sensing structure 1011 and a complete second touch sensing structure 1012. It should be noted that the number of data lines DL corresponding to one touch sensing structure 101 shown in FIG3, FIG5, and FIG6 is for illustrative purposes only. Typically, one touch sensing structure 101 corresponds to approximately 40 pixel units PO, and the number of data lines DL corresponding to one touch sensing structure is usually more than 6. In an actual structure, the number of corresponding data lines DL can be determined based on the size of the touch sensing structure 101 and the touch accuracy, so that one touch sensing structure 101 corresponds to an integer multiple of the touch basic period R0, or corresponds to an integer multiple of the touch basic period R0 and one of the first basic unit R1 and the second basic unit R2.

[0118] In an exemplary embodiment, as shown in Figures 5 and 6 , each data line DLm is electrically connected to two adjacent columns of sub-pixels, and a first touch sensing structure 1011 corresponds to L1 adjacent touch basic units R0, a first basic unit R1 located to one side of the L1 touch basic unit R0, or a second basic unit R2. Thus, a first touch sensing structure 1011 corresponds to 6L1*2+3*2 columns of sub-pixels. That is, in the row direction X, the orthographic projection of a first touch sensing structure 1011 on the substrate can at least partially overlap with the orthographic projection of at least some of the sub-pixels in the 6L1*2+3*2 columns of sub-pixels on the substrate. As shown in Figures 5 and 6 , when L1 is 1, the orthographic projection of a first touch sensing structure 1011 on the substrate can at least partially overlap with the orthographic projection of at least some of the sub-pixels in the 6*1*2+3*2 columns of sub-pixels (i.e., 18 columns of sub-pixels) on the substrate.

[0119] In an exemplary embodiment, as shown in Figures 5 and 6 , each data line DLm is electrically connected to two adjacent columns of sub-pixels. In the row direction X, one second touch sensing structure 1012 corresponds to 6L2 data lines in the L2 touch basic units R0. Thus, one second touch sensing structure 1012 corresponds to 6L2*2 columns of sub-pixels. That is, in the row direction X, the orthographic projection of one second touch sensing structure 1012 on the substrate can at least partially overlap with the orthographic projection of at least some of the sub-pixels in the 6L2*2 columns of sub-pixels on the substrate. As shown in Figures 5 and 6 , when the value of L2 is 1, the orthographic projection of one second touch sensing structure 1012 on the substrate can at least partially overlap with the orthographic projection of at least some of the sub-pixels in the 6*1*2 columns of sub-pixels (i.e., 12 columns of sub-pixels) on the substrate.

[0120] In an exemplary embodiment, as shown in Figures 4 to 6, a pixel unit P0 may include a first sub-pixel P01, a second sub-pixel P02, and a third sub-pixel P03; in an exemplary embodiment, the first sub-pixel P01 may be a sub-pixel that emits red light, the second sub-pixel P02 may be a sub-pixel that emits green light, and the third sub-pixel P03 may be a sub-pixel that emits blue light.

[0121] In an exemplary embodiment, as shown in Figures 5 and 6, in the row direction X, in the multiple sub-pixel columns corresponding to one touch sensing structure 101, the multiple sub-pixels Pxij in the first column of sub-pixels may be the second sub-pixel P02, the multiple sub-pixels Pxij in the second column of sub-pixels may be the third sub-pixel P03, the multiple sub-pixels Pxij in the third column of sub-pixels may be the first sub-pixel P01, the multiple sub-pixels Pxij in the fourth column of sub-pixels may be the second sub-pixel P02, the multiple sub-pixels Pxij in the fifth column of sub-pixels may be the third sub-pixel P03, the multiple sub-pixels Pxij in the sixth column of sub-pixels may be the first sub-pixel P01, and so on. In an exemplary embodiment, as shown in Figures 5 and 6, in the row direction X, among the multiple data lines DLm corresponding to one touch sensing structure 101, the first data line is the sixth data line DL6, and the main body ZDL of the first data line DL6 is configured to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the first data line DL6 is configured to be connected to the first-to-last column of sub-pixels and the second-to-last column of sub-pixels corresponding to the touch sensing structure adjacent in the opposite direction of the row direction X; the second data line is the first data line DL1, and the main body ZDL of the second data line DL1 is configured to be electrically connected to the third column of sub-pixels and the fourth column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the second data line DL1 is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels, and so on. In an exemplary embodiment, as shown in Figures 5 and 6, in the row direction X, among the multiple data lines DLm corresponding to one touch sensing structure 101, the first data line may be the third data line DL3, the main body ZDL of the first data line DL3 is configured to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the first data line DL3 is configured to be connected to the first-to-last column of sub-pixels and the second-to-last column of sub-pixels corresponding to the touch sensing structure adjacent in the opposite direction of the row direction X; the second data line is the fourth data line DL4, the main body ZDL of the second data line DL4 is configured to be electrically connected to the third column of sub-pixels and the fourth column of sub-pixels, and the second data structure portion ZL12 of the second data line DL4 is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the touch sensing structure 101, and so on.

[0122] In an exemplary embodiment, as shown in Figures 5 and 6, in the opposite direction of the row direction X, in the multiple sub-pixel columns corresponding to one touch sensing structure 101, the multiple sub-pixels Pxij in the first column of sub-pixels may be the first sub-pixel P01, the multiple sub-pixels Pxij in the second column of sub-pixels may be the third sub-pixel P03, the multiple sub-pixels Pxij in the third column of sub-pixels may be the second sub-pixel P02, the multiple sub-pixels Pxij in the fourth column of sub-pixels may be the first sub-pixel P01, the multiple sub-pixels Pxij in the fifth column of sub-pixels may be the third sub-pixel P03, the multiple sub-pixels Pxij in the sixth column of sub-pixels may be the second sub-pixel P02, and so on. In an exemplary embodiment, as shown in Figures 5 and 6, in the direction opposite to the row direction X, among the multiple data lines DLm corresponding to one touch sensing structure 1011, the first data line may be the second data line DL2, the main body ZDL of the first data line DL2 is configured to be connected to the first column and the second column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the first data line DL2 is configured to be connected to the third column and the fourth column of sub-pixels corresponding to the touch sensing structure 101; the second data line is the first data line DL1, the main body ZDL of the second data line DL1 is configured to be electrically connected to the third column and the fourth column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the second data line DL1 is configured to be electrically connected to the fifth column and the sixth column of sub-pixels corresponding to the touch sensing structure 101, and so on. In an exemplary embodiment, as shown in Figures 5 and 6, in the opposite direction of the row direction X, among the multiple data lines DLm corresponding to one touch sensing structure 101, the first data line may be the fifth data line DL5, the main body ZDL of the first data line DL5 is configured to be connected to the first column and the second column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the first data line DL5 is configured to be connected to the third column and the fourth column of sub-pixels corresponding to the touch sensing structure 101; the second data line is the fourth data line DL4, the main body ZDL of the second data line DL4 is configured to be electrically connected to the third column and the fourth column of sub-pixels corresponding to the touch sensing structure 101, and the second data structure portion ZL12 of the second data line DL4 is configured to be electrically connected to the fifth column and the sixth column of sub-pixels corresponding to the touch sensing structure 101, and so on.

[0123] In an exemplary embodiment, as shown in Figures 8a and 8b, in the row direction X, in the touch display substrate, multiple sub-pixels Pxij in the first column of sub-pixels may be the second sub-pixel P02, multiple sub-pixels Pxij in the second column of sub-pixels may be the third sub-pixel P03, multiple sub-pixels Pxij in the third column of sub-pixels may be the first sub-pixel P01, multiple sub-pixels Pxij in the fourth column of sub-pixels may be the second sub-pixel P02, multiple sub-pixels Pxij in the fifth column of sub-pixels may be the third sub-pixel P03, multiple sub-pixels Pxij in the sixth column of sub-pixels may be the first sub-pixel P01, and so on. In an exemplary embodiment, as shown in Figures 8a and 8b, in the touch display substrate in the row direction X, the first data line DL may be the sixth data line DL6, which is electrically connected to the first column of sub-pixels and the second column of sub-pixels. The second to seventh data lines DL may be the first to sixth data lines DL1 to DL6 in one basic cycle, and the eighth to thirteenth data lines DL may be the first to sixth data lines DL1 to DL6 in the next basic cycle, and so on. In an exemplary embodiment, as shown in Figures 8a and 8b, at the L127 grayscale displaying a green image, the level signals provided by two adjacent data lines DL are opposite. For example, the first data line DL6 may provide a high-level signal (i.e., a positive signal), and the second data line DL1 may provide a low-level signal (i.e., a negative signal), and so on. FIG8b is a partially enlarged schematic diagram of the touch display substrate in FIG8a . The touch display substrate further includes a first dummy pixel column 41. In the row direction X, the first dummy pixel column 41 is located on a side of the first column of sub-pixels away from the second column of sub-pixels. A plurality of dummy pixels 40 are provided in the first dummy pixel column 41. In an exemplary embodiment, as shown in FIG8a , in the row direction X, the first data line corresponding to the first touch sensing structure 101 is the sixth data line DL6. The main portion of the first data line DL6 is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure 101.

[0124] In an exemplary embodiment, as shown in FIG9a and FIG9b, in the touch display substrate, in the direction opposite to the row direction X, the plurality of sub-pixels Pxij in the first column of sub-pixels may be the first sub-pixel P01, the plurality of sub-pixels Pxij in the second column of sub-pixels may be the third sub-pixel P03, the plurality of sub-pixels Pxij in the third column of sub-pixels may be the second sub-pixel P02, the plurality of sub-pixels Pxij in the fourth column of sub-pixels may be the first sub-pixel P01, the plurality of sub-pixels Pxij in the fifth column of sub-pixels may be the third sub-pixel P03, the plurality of sub-pixels Pxij in the sixth column of sub-pixels may be the second sub-pixel P02, and so on. In an exemplary embodiment, as shown in FIG9a and FIG9b, in the touch display substrate, in the direction opposite to the row direction X, the first to fifth data lines DL may be the fifth data line DL5 to the first data line DL1, and the first data line DL5 is electrically connected to the first and second columns of sub-pixels. In an exemplary embodiment, as shown in Figures 9a and 9b , at grayscale L127, displaying a green image, two adjacent data lines DL provide signals of opposite levels. For example, the first data line DL2 can provide a high-level signal (i.e., a positive signal), the second data line DL1 can provide a low-level signal (i.e., a negative signal), and so on. Figure 9b is a partially enlarged schematic diagram of the touch display substrate in Figure 9a . The touch display substrate further includes a second dummy pixel column 42 . In the direction opposite to the row direction X, the second dummy pixel column 42 is located on a side of the first column of sub-pixels away from the second column of sub-pixels. The second dummy pixel column 42 includes a plurality of dummy pixels 40 .

[0125] In an exemplary embodiment, as shown in Figure 9a, in the opposite direction of the row direction X, the first data line corresponding to the first touch sensing structure 101 can be the fifth data line DL5, and the second data structure portion of the first data line DL5 is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure 101.

[0126] In an exemplary embodiment, as shown in Figures 5 to 8a and 9a, in the case of a 127 grayscale green screen, among the six data lines in one basic cycle, the first data line DL1, the third data line DL3, and the fifth data line DL5 can be configured to provide a high-level signal (i.e., a positive signal), and the second data line DL2, the fourth data line DL4, and the sixth data line DL6 can be configured to provide a low-level signal (i.e., a negative signal). In the case of other screens, data signals can be provided to the first data line DL1 to the sixth data line DL6 according to the actual grayscale value, and two adjacent data lines DL can provide the same signal or different signals (i.e., opposite polarities).

[0127] In an exemplary embodiment, as shown in FIG3 and FIG5 to FIG7 , in the row direction X, each data line DL is electrically connected to four adjacent columns of sub-pixels, each second data structure portion ZL12 is electrically connected to a row of sub-pixels in two adjacent columns of sub-pixels, and in the column direction Y, the data line main portion ZDL located between two adjacent first bending structures ZL1 is electrically connected to a row of sub-pixels in the other two adjacent columns of sub-pixels.

[0128] In the first data line DL1 and the fourth data line DL4, the data line main portion ZDL of each data line DL is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column, and the second data structure portion ZL12 of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column;

[0129] In the second data line DL2 and the fifth data line DL5, the data line main portion ZDL of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column, and the second data structure portion ZL12 of each data line is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column;

[0130] In the third data line DL3 and the sixth data line DL6, the data line main portion ZDL of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column, and the second data structure portion ZL12 of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column.

[0131] In an exemplary embodiment, the pixel unit P0 includes three types of sub-pixels, namely a first sub-pixel P01, a second sub-pixel P02 and a third sub-pixel P03; in the first data line DL1, the second data line DL2, the fourth data line DL4 and the fifth data line DL5, two adjacent sub-pixels in the sub-pixels connected in sequence to each data line are sub-pixels of different types; in the third data line DL3 and the sixth data line DL6, in the sub-pixels connected in sequence to each data line, two second sub-pixels are spaced between adjacent first sub-pixels and second sub-pixels.

[0132] In an exemplary embodiment, in the first data line DL1 and the fourth data line DL4, the number of second sub-pixels P02 connected to each data line is equal to the sum of the number of first sub-pixels P01 and third sub-pixels P03 connected thereto; in the second data line DL2 and the fifth data line DL5, the number of first sub-pixels P01 connected to each data line is equal to the sum of the number of second sub-pixels P02 and third sub-pixels P03 connected thereto; in the third data line DL3 and the sixth data line DL6, the number of third sub-pixels P03 connected to each data line is equal to the sum of the number of first sub-pixels P01 and second sub-pixels P02 connected thereto.

[0133] In exemplary embodiments, as shown in Figures 4 to 7 , the touch sensing structure 101 can be rectangular or square, with a side length of approximately 3 mm to 7 mm. In a structure supporting both active pen touch and finger touch, the side length of the touch sensing structure 101 is approximately 3 mm to 6 mm. In a structure supporting only finger touch, the side length of the touch sensing structure 101 is approximately 4 mm to 7 mm. In the single-gate touch display substrate shown in Figure 4 , each touch sensing structure only includes a complete pixel unit P0 in the row direction X. The number of data lines DL corresponding to one touch sensing structure 101 is an integer multiple of 3, and the number of pixel units P0 corresponding to one touch sensing structure 101 is approximately 10 to 80. In the touch display substrate with a dual-gate structure shown in FIG7 , the number of data lines DL corresponding to one touch sensing structure 101 is an integer multiple of 6 (i.e., an integer multiple of one basic period; data lines of one basic period and an integer multiple of one basic period will not generate a potential pull on the corresponding touch sensing structure 101). In the touch display substrate with a dual-gate structure shown in FIG5 and FIG6 , when the number of data lines DLm corresponding to one touch sensing structure 101 is not an integer multiple of 6, three more data lines DL may be provided on the basis of the integer multiple of 6. For example, the first touch sensing structure 1011 may correspond to L1 adjacent touch basic units R0, a first basic unit R1 located on one side of the L1 touch basic units R0, or a second basic unit R2; and the data lines corresponding to the second touch sensing structure 1012 correspond to L2 adjacent touch basic units R0. The waveforms of the six data lines DL in a basic cycle can be shown in Figure 10a, and the pulling of the touch sensing structure 101 by the sixth data line DL6, the first data line DL1, and the second data line DL2 (i.e., a second basic unit R2), and the pulling of the touch sensing structure 101 by the third data line DL3 to the fifth data line DL5 (i.e., a first basic unit R1) can be shown in Figure 10b. Figure 10b is a schematic diagram showing the pulling result of the data line DL at position M in Figure 10a on the touch sensing structure. In Figure 10b, +1 represents rising edge pulling, -1 represents falling edge pulling, and 0 represents no pulling. The total pulling result Total of the first data line DL1, the second data line DL2, and the sixth data line DL6 for one touch sensing structure 101 is 0. The total pulling result Total of the third data line DL3 to the fifth data line DL5 for one touch sensing structure 101 is also 0. This can avoid the generation of vertical stripes due to the potential pulling of the data line DL on the touch sensing structure 101 at the grayscale L127 of the pure green screen.

[0134] In an exemplary embodiment, the plurality of touch sensing structures 101 in FIG. 10 c may include twelve block divisions S1 to S12. In the blocks S1 to S12, the number of pixel units P0 corresponding to each touch sensing structure may be as shown in Table 1:

[0135] Table 1: Number of pixel units corresponding to the touch sensing structure

[0136] In the various divisions of the touch sensing structure 101 shown in FIG10c, within the active area (which may overlap with the display area), the vertical streaks are lighter on the side near the data pad (DP) (i.e., the side near the binding area 200), while the vertical streaks are heavier on the side near the data pad opposite (DPO) (i.e., the side away from the binding area 200). In some cases, the vertical streaks disappear at a position approximately 1 / 4 of the length of the active area near the DPO in the column direction Y. Vertical streaks primarily occur in blocks S3, S4, S5, S6, S11, and S12. That is, each block in the row direction X corresponds to 33 or 34 pixel units P0, and the vertical streaks are primarily concentrated on the side near the data pad opposite (DPO). There are no vertical streaks in the blocks S1, S2, S7, S8, S9, and S10. Each block in the blocks S1, S2, S7, S8, S9, and S10 corresponds to 32 pixel units P0 in the row direction X. Typically, the touch sensing structure 101 in a touch display substrate with a dual-gate structure can be divided using one or more of the 12 block division methods shown in FIG10c , depending on the actual structure. The following analyzes the causes of vertical streaks in a touch display substrate with a dual-gate structure, combined with FIG10d :

[0137] In the dual-gate touch display substrate shown in Figure 10d, the signal from each data line DL controls two columns of subpixels on the left and right. Adjacent data lines DL have opposite polarity, and every six data lines DL constitute a basic cycle (i.e., four columns of pixel units P0). When each touch sensing structure 101 corresponds to 34 pixel units P0 along the row direction X, the number of data lines DL within each touch sensing structure 101 is 34*3 / 2=51, leaving three data lines DL after division by 6. At grayscale L127, representing a pure green image, the waveforms of the first three data lines DL are shown in Figure 10e, indicating that only the signals of the G subpixels are high. As can be seen from the four rows at position G0 in the figure, the first and third rows control the G subpixels, while the second and fourth rows control the R pixels. Therefore, when displaying a green image, the R and B subpixels in the second row are turned off, and the pull of the second and fourth rows has no effect on the entire touch sensing structure 101. The pulling of the three data lines DL on the corresponding touch sensing structure 101 (ie, COM block) is shown in FIG10f . In FIG10f , +1 represents rising edge pulling, −1 represents falling edge pulling, and 0 represents no potential pulling. Therefore, in a green grayscale 127 image, the pulls exerted by the three data lines DL on the touch sensing structure 101 cannot offset each other. As shown in FIG. 10g , and based on the reasoning from FIG. 10f , when a green image is displayed, considering the polarity of the data lines DL, the G sub-pixels in the first and second columns receive a + signal (i.e., a high-level signal), which is further pulled up by the data line DL signal. As a result, the charge of the two columns of pixels is not saturated, resulting in a dark display, i.e., insufficient charge (the reason for no pre-charging is that, in a green image, the R sub-pixels or B sub-pixels in the row preceding the G sub-pixels are off, so no pre-charging is performed in advance). The G sub-pixels in the third and fourth columns receive a - signal (i.e., a low-level signal), which is further pulled up by the data line DL signal. As a result, the charge of the two columns of pixels is oversaturated, resulting in a bright display, i.e., pre-charging is performed. Therefore, when a green image with a grayscale of L127 is normally displayed, obvious vertical stripes of alternating light and dark appear. In other words, vertical stripes appear when the touch sensing structure 101 corresponds to 34 pixel units in the row direction X.

[0138] In an exemplary embodiment, as shown in FIG11a , in a touch display substrate having a single-gate structure, a touch signal line 102 may be electrically connected to a corresponding one of the touch sensing structures 101 through a column of vias VTx. A column of vias VTx may include multiple vias VTx. The multiple vias VTx may be respectively arranged in multiple sub-pixels in a column of sub-pixels located on one side of the touch signal line 102. For example, in the row direction X, the multiple vias VTx may be respectively arranged in multiple sub-pixels in a column of sub-pixels located on a side of the touch signal line 102 away from the data line DL. No vias VTx may be arranged in sub-pixels located near the edge of the touch sensing structure 101. The number of vias VTx in a column corresponding to one touch sensing structure 101 may be 15 to 30. In an exemplary embodiment, in a structure in which a touch sensing structure 101 is electrically connected to two touch signal lines 102 through vias VTx, a column of vias VTx can be set on each of the two touch signal lines 102, and the sub-pixels where two adjacent vias VTx on a touch signal line 102 are located can be separated by at least one sub-pixel in the column direction Y (for example, one sub-pixel can be separated), which can avoid visible via point defects due to dense vias VTx. In an exemplary embodiment, as shown in FIG11b , when one touch sensing structure 101 is electrically connected to two touch signal lines 102 through two columns of vias VTx, the two touch signal lines 102 may include a first touch signal line 102a and a second touch signal line 102b, and the two columns of vias VTx may include a plurality of first vias VTxa in the first column of vias and a plurality of second vias VTxb in the second column of vias. The first touch signal line 102a may be electrically connected to the corresponding touch sensing structure 101 through the plurality of first vias Vtxa in the first column of vias, and the second touch signal line 102b may be electrically connected to the corresponding touch sensing structure 101 through the plurality of second vias Vtxb in the second column of vias. The plurality of first vias VTxa and the plurality of second vias VTxb corresponding to one touch sensing structure 101 may be alternately arranged in the column direction Y, so as to avoid visible poor via points due to the dense density of the two columns of vias VTx.

[0139] In an exemplary embodiment, as shown in Figures 5 and 6, in a touch display substrate with a dual-gate structure, multiple touch signal lines 102 and multiple data lines DL can extend along the column direction Y and be arranged along the row direction X. The touch signal lines are electrically connected to corresponding touch sensing structures through a column of vias, and the multiple data lines DL and the multiple touch signal lines 102 can be alternately arranged along the row direction X. One touch sensing structure 101 can be electrically connected to at least one touch signal line 102 through at least one column of vias VTx. In a structure in which one touch sensing structure 101 is electrically connected to one of the touch signal lines 102 through one column of vias VTx, reducing the number of touch signal lines 102 can improve the transmittance of the touch display substrate. In the column direction Y, the two sub-pixels where two adjacent vias VTx on a touch signal line 102 are located can be separated by at least one sub-pixel in the column direction, which can avoid dense vias VTx causing poor via points visible to the naked eye. In a touch sensing structure 101, 10 to 25 vias VTx in a column of vias can be electrically connected to the corresponding touch signal line 102, and no vias VTx are set at the edge of the touch sensing structure 101.

[0140] In an exemplary embodiment, as shown in FIG12a , in a touch display substrate in which one touch sensing structure 101 is electrically connected to two touch sensing structures 101 , two touch signal lines 102 electrically connected to the same touch sensing structure 101 may include a first touch signal line 102a and a second touch signal line 102b . The first touch signal line 102a and the second touch signal line 102b are short-circuited at their ends close to the data binding end DP, that is, the first touch signal line 102a and the second touch signal line 102b are connected in parallel in the border area of ​​their ends close to the data binding end DP, which can reduce the impedance of the touch signal line 102 . Typically, the two touch signal lines 102 connected in parallel can reduce the impedance by half, thereby reducing the RC delay to a certain extent and improving the touch performance. As shown in Figure 12a, after the first touch signal line 102a and the second touch signal line 102b are short-circuited at their ends near the data binding terminal DP, they are electrically connected to a driver chip (driver IC) via a shorting wire 1020. Touch signals from the driver chip are then provided to the corresponding touch sensing structure 101 by the first touch signal line 102a and the second touch signal line 102b. As shown in Figure 12a, one end of the shorting wire 1020 is electrically connected to the driver chip IC, and the other end is electrically connected to the first touch signal line 102a and the second touch signal line 102b. That is, as shown in Figure 12a, the touch display substrate may include a display area AA and a data binding terminal DP located on one side of the display area. In the display area AA, one touch sensing structure 101 is electrically connected to two touch signal lines via two columns of vias VTx. The two touch signal lines 102 are connected in parallel at their ends near the data binding terminal DP.

[0141] In an exemplary embodiment, as shown in FIG12b , at least a portion of the touch sensing structure 101 may correspond to at least one dummy touch signal line 50. The orthographic projection of the dummy touch signal line 50 on the substrate may at least partially overlap with the orthographic projection of the corresponding touch sensing structure 101 on the substrate. The touch sensing structure 101 may be electrically connected to the corresponding dummy touch signal line 50 (i.e., a dummy Tx trace) through a via VTx, thereby increasing the thickness of the touch sensing structure 101 and reducing the impedance of the touch sensing structure 101. In an exemplary embodiment, the orthographic projection of the dummy touch signal line 50 on the substrate may be within the range of the orthographic projection of the corresponding touch sensing structure 101 on the substrate. In an exemplary embodiment, in the row direction X, the virtual touch signal line 50 may be disposed between the sixth data line DL6 and the first data line DL1 as shown in FIG5 and FIG6 . That is, the touch signal line 102 between the sixth data line DL6 and the first data line DL1 may serve as the virtual touch signal line 50. When the touch signal line 102 serves as the virtual touch signal line 50, in the column direction Y, one touch signal line 102 may be divided into multiple virtual touch signal lines 50 corresponding to multiple touch sensing structures 101, respectively. Two adjacent virtual touch signal lines 50 in the column direction Y are disconnected. In an exemplary embodiment, if the number of touch signal lines is sufficient, the touch signal line 102 between the first data line DL1 may serve as the virtual touch signal line 50. If the number of touch signal lines is insufficient, the touch signal line 102 between the sixth data line DL6 and the first data line DL1 serves as the touch signal line to provide touch signals to the corresponding touch sensing structures 101.

[0142] In an exemplary embodiment, as shown in FIG13 , the touch signal line 102 and the data line DL may be located in the same conductive layer, the touch display substrate may include a source / drain metal layer (SD layer) and a touch layer, an insulating layer may be provided between the source / drain metal layer and the touch layer, the touch sensing structure 101 may be located in the touch layer, and the touch layer may be reused as a common electrode layer of the touch display substrate; the data line DL and the touch signal line 102 may be located in the source / drain metal layer, and the touch signal line 102 may be electrically connected to the touch sensing structure 101 through a via VTx.

[0143] In an exemplary embodiment, FIG13 shows a partially enlarged schematic diagram of an amorphous silicon (A-Si) touch display substrate made of six mask plates. The touch signal line 102 and the data line DL in FIG13 are located in the same conductive layer, and there is a problem of low transmittance. When it is necessary to increase the transmittance of the touch display product, a conductive layer can be added as a touch signal line layer. The touch signal line 102 is set in the touch signal line layer, and the data line DL is set in the source and drain metal layer. The orthographic projections of the touch signal line 102 and the corresponding data line DL on the substrate can at least partially overlap, thereby improving the transmittance of the touch display substrate. Nine masks can be used to prepare an oxide touch display substrate. The oxide touch display substrate may include a first conductive layer, a first insulating layer (GI layer, which can be called a gate dielectric layer), a semiconductor layer, a second conductive layer (which can be called a source-drain metal layer, abbreviated as SD layer), a second insulating layer (PVX Buffer layer, which can be called a first buffer layer), an organic film layer (ORG layer, which can be called a planarization layer), a third insulating layer (PVX Buffer layer, which can be called a second buffer layer), a third conductive layer, a fourth insulating layer (PVX Buffer layer, which can be called a third buffer layer), a fourth conductive layer (ITO1 layer, which can be called a COM layer or a common electrode layer), a fifth insulating layer (PVX layer, which can be called a passivation layer), and a fifth conductive layer (ITO2 layer, which can be called a pixel electrode layer or a pixel layer). In an exemplary embodiment, a plurality of gate lines GL arranged in sequence along the column direction Y may be located in the first conductive layer; the semiconductor layer may include an active layer of the transistor 30, and the active layer may be made of an oxide, such as indium gallium zinc oxide (IGZO); the data line DL may be located in the source / drain metal layer SD (i.e., the second conductive layer), the touch signal line 102 may be located in the third conductive layer, the common electrode layer may be reused as the touch layer, and the touch sensing structure 101 may be located in the touch layer; the second to fourth insulating layers do not require a mask plate, and nine mask plates may be used to form an oxide touch display substrate.

[0144] As shown in FIG14 , which is a partial enlarged schematic diagram of an oxide touch display substrate, the shape of the via hole VTx can be rectangular, the length e along the first direction X can be 6 microns to 12 microns, and the length f along the second direction Y can be 3 microns to 6 microns; the pixel electrode layer can include a plurality of switching electrodes 60, and the shape of the switching electrodes 60 can be rectangular. The via hole VTx corresponds to one of the switching electrodes 60, and the orthographic projection of the via hole VTx on the substrate at least partially overlaps with the orthographic projection of the corresponding switching electrode 60 on the substrate; in an exemplary embodiment, as shown in FIG14 , the orthographic projection of the via hole VTx on the substrate can be located within the range of the orthographic projection of the corresponding switching electrode 60 on the substrate, and the size of the switching electrode 60 along the first direction X is equal to the orthographic projection of the corresponding switching electrode 60. The difference 2H1 between the dimensions of the corresponding via holes VTx along the first direction X is approximately 2 microns. In the first direction X, the distance H1 between one side of the transfer electrode 60 and the nearest edge of the corresponding via hole VTx is approximately 1 micron. The dimension of the transfer electrode 60 along the first direction X (i.e., the row direction) is larger than the dimension of the corresponding via hole VTx along the first direction X. The difference 2H2 between the dimension of the transfer electrode 60 along the second direction Y (i.e., the column direction) and the dimension of the corresponding via hole VTx along the second direction Y is approximately 2 microns. In the second direction Y, the distance H2 between one side of the transfer electrode 60 and the nearest edge of the corresponding via hole VTx is approximately 1 micron. The dimension of the transfer electrode 60 along the second direction Y is larger than the dimension of the corresponding via hole VTx along the second direction Y. In an exemplary embodiment, the transfer electrode 60 covers the corresponding via hole VTx, preventing moisture from entering the touch display substrate through the via hole VTx and causing corrosion of the touch display substrate.

[0145] As shown in Figure 14, the touch signal line 102 can be located in the third conductive layer. The touch signal line 102 is provided with a touch electrode block 70. The touch electrode block 70 can be an integrated structure with the touch signal line 102. The touch electrode block 70 can be rectangular or square; multiple adapter electrodes 60 correspond one-to-one to multiple touch electrode blocks 70, and the orthographic projection of the adapter electrode 60 on the substrate at least partially overlaps with the orthographic projection of the corresponding touch electrode block 70 on the substrate. In an exemplary embodiment, the orthographic projection of the transition electrode 60 on the substrate can be located within the range of the orthographic projection of the corresponding touch electrode block 70 on the substrate, and in the first direction X, the distance H3 between the edge of the touch electrode block 70 and the edge of the adjacent transition electrode 60 is greater than or equal to 1 micron; in the second direction Y, the distance H4 between the edge of the touch electrode block 70 and the edge of the adjacent transition electrode 60 is greater than or equal to 1.5 microns; that is, in the first direction X, the size of the touch electrode block 70 is greater than the size of the transition electrode 60, and the difference 2H3 between the size of the touch electrode block 70 and the size of the transition electrode 60 is greater than or equal to 2 microns; in the second direction Y, the size of the touch electrode block 70 is greater than the size of the transition electrode 60, and the difference 2H4 between the size of the touch electrode block 70 and the size of the transition electrode 60 is greater than or equal to 3 microns. The size of the touch electrode block 70 is larger than that of the corresponding transfer electrode 60, and the orthographic projection of the transfer electrode 60 on the substrate is within the range of the orthographic projection of the touch electrode block 70 on the substrate. On the one hand, the transfer electrode 60 can be normally overlapped with the touch electrode block 70 through the via VTx, and on the other hand, the via VTx can be prevented from etching into the third insulating layer between the third conductive layer and the fourth conductive layer.

[0146] As shown in FIG14 , the touch sensing structure 101 may be located in the fourth conductive layer (i.e., the common electrode layer), and the touch sensing structure 101 may correspond to a column of vias VTx, and the vias VTx partially overlap with the orthographic projections of the corresponding touch sensing structures 101 on the substrate. In an exemplary embodiment, in the first direction X, the orthographic projection of half of a via VTx on the substrate is located within the range of the orthographic projection of the corresponding touch sensing structure 101 on the substrate. In the first direction X, a via Vtx may include a first portion and a second portion, and the first portion of the via Vtx may be located within the range of the orthographic projection of the corresponding touch sensing structure 101 on the substrate. The touch electrode block 70 is exposed, and the second part of the via Vtx exposes the corresponding touch sensing structure 101. The touch electrode block 70 on the touch signal line 102 can be electrically connected to the corresponding adapter electrode 60 through the first part of VTx, and the touch sensing structure 101 is electrically connected to the corresponding adapter electrode 60 through the second part of the via VTx; that is, the adapter electrode 60 can be electrically connected to the corresponding touch electrode block 70 and the corresponding touch sensing structure 101 through the corresponding via VTx, so that the touch signal line 102 is electrically connected to the corresponding touch sensing structure 101.

[0147] As shown in Figures 15a to 15b, Figure 15a is a schematic diagram of the local structure after the third conductive layer MT3 and the fourth conductive layer MT4 are formed, Figure 15b is a schematic diagram of the local structure after the fifth insulating layer is formed, Figure 15c is a schematic diagram of the planar structure after the fifth conductive layer MT5 is formed, Figure 15d is a schematic diagram of the cross-sectional structure along the AA position in Figure 15c, and the third direction Z in Figure 15d is a direction perpendicular to the plane where the substrate 300 is located, 300 is the substrate, c11 is the first insulating layer, c12 is the second insulating layer, c13 is the third insulating layer, c14 is the fourth insulating layer, c15 is the fifth insulating layer, VTx1 is the first part of the via VTx, VTx2 is the second part of the via VTx, and ORG is the organic film layer.

[0148] In an exemplary embodiment, as shown in Figures 14 to 15d, the via VTx, the touch transfer electrode 60 and the touch electrode block 70 are all rectangular structures; multiple transfer electrodes 60, multiple touch electrode blocks 70 on the touch signal lines, and multiple vias VTx correspond to each other one by one; the orthographic projection of the via VTx on the substrate is located within the range of the orthographic projection of the corresponding transfer electrode 60 on the substrate, and the orthographic projection of the transfer electrode 60 on the substrate is located within the range of the orthographic projection of the corresponding touch electrode block 70 on the substrate; the orthographic projection of the via VTx on the substrate is at least partially covered by the orthographic projection of the corresponding touch sensing structure 101 on the substrate, and at least partially not covered by the orthographic projection of the corresponding touch sensing structure 101 on the substrate.

[0149] In an exemplary embodiment, as shown in FIG16a , which is a schematic diagram of signal routing in the first border area B1, the first border area B1 may include a first area B11, a second area B12, and a data binding terminal DP arranged along the column direction Y. In the column direction Y, the first area B11 is located between the display area AA and the second area B12. The data lines DL and the touch signal lines 102 are alternately arranged along the row direction X in the display area AA. In the display area AA, the data lines DL are located in the second conductive layer (SD layer), and the touch signal lines 102 are located in the third conductive layer MT3. In the first area of ​​the first border area B1 close to the display area AA, the touch signal lines 102 are transferred to the routing in the first conductive layer (Gate layer) through the first transfer via Vm1. In the first area B11, the data lines DL located in the second conductive layer and the touch signal lines 102 located in the first conductive layer can be alternately arranged along the column direction. 1 is shown in FIG16b . In the first area B11 of the first frame area B1, the line width K1 of the touch signal line 102 located in the first conductive layer is approximately greater than or equal to 2 microns, and the distance D1 between two adjacent touch signal lines 102 is greater than or equal to 3 microns. The line width K2 of the data line DL located in the second conductive layer MT2 is approximately greater than or equal to 2.5 microns, and the distance D2 between two adjacent data lines DL is greater than or equal to 3.3 microns. The line width K2 of the data line DL located in the second conductive layer MT2 is set to be greater than or equal to 2.5 microns and the line distance D2 is greater than or equal to 3.3 microns, which can avoid disconnection or short circuit when the data line climbs. In an exemplary embodiment, in the second area B12 of the first border area B1, the touch signal lines 102 located in the first conductive layer MT1 can be converted into lines located in the second conductive layer MT2 through the second transfer via Vm2. The multiple touch signal lines 102 can be divided into multiple touch signal lines 102 in the first conductive layer and multiple touch signal lines 102 in the second conductive layer. The touch signal lines 102 in the first conductive layer and the touch signal lines in the second conductive layer can be arranged alternately to match the driver chip, which can save wiring space. The touch signal lines 102 in the second area B12 extend to the data binding terminal DP at the end away from the display area AA and can be electrically connected to the corresponding driver chip through the data binding terminal DP. As shown in Figure 16c, a partial enlarged schematic diagram of the second area B12 of the first border area B12 is shown. In the second area B12, the touch signal lines 102 in the first conductive layer and the multiple touch signal lines 102 in the second conductive layer can be arranged alternately along the column direction Y.

[0150] In an exemplary embodiment, in the touch display substrate shown in FIG. 16 a to FIG. 16 c , in the first frame area B1 , the touch signal lines 102 and the data lines DL are alternately arranged, which can save wiring space and achieve a narrow frame.

[0151] An embodiment of the present disclosure provides a display device, as shown in FIG17 . The display device may include the touch display substrate described in any of the above embodiments.

[0152] In the embodiments of the present disclosure, the display device may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, or a navigator.

[0153] Embodiments of the present disclosure provide a touch display substrate and a display device. In the touch display substrate, a plurality of sub-pixels arranged in an array form a plurality of pixel units arranged in an array. The pixel unit includes M adjacent sub-pixels arranged sequentially along a row direction. The plurality of data lines includes a plurality of basic periods arranged sequentially along the row direction. The basic period includes U1 data lines, a first basic unit, and U2 data lines arranged sequentially along the row direction. The U1 data line and the U2 data line between two adjacent first basic units constitute a second basic unit. The first basic unit includes M adjacent data lines, where the sum of U1 and U2 is M. An adjacent first basic unit and a second basic unit constitute a touch basic unit. The plurality of touch sensing structures includes at least one first touch sensing structure and a plurality of second touch sensing structures. The first touch sensing structure corresponds to L1 adjacent touch basic units, a first basic unit located on one side of the L1 touch basic unit, or a second basic unit. The second touch sensing structure corresponds to L2 adjacent touch basic units. The solution provided by the embodiments of the present disclosure can, to a certain extent, solve the technical problem of poor vertical stripes on the touch display substrate.

[0154] The drawings of the embodiments of the present disclosure only involve the structures involved in the embodiments of the present disclosure, and other structures may refer to general designs.

[0155] In the absence of conflict, the embodiments of the present disclosure, i.e., features in the embodiments, can be combined with each other to form new embodiments.

[0156] Although the embodiments disclosed in the present disclosure are as described above, the contents described are only embodiments adopted to facilitate understanding of the embodiments of the present disclosure and are not intended to limit the embodiments of the present disclosure. Any person skilled in the art in the field to which the embodiments of the present disclosure belong may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the embodiments of the present disclosure, but the scope of patent protection of the embodiments of the present disclosure shall still be based on the scope defined by the attached claims.

Claims

1. A touch display substrate, comprising a substrate and a plurality of touch sensing structures disposed on the substrate, a plurality of sub-pixels arranged in an array, and a plurality of data lines, the plurality of data lines extending in a column direction and arranged at intervals in a row direction; in the row direction, the data lines are located between two adjacent columns of sub-pixels and electrically connected to the two adjacent columns of sub-pixels; the plurality of sub-pixels form a plurality of pixel units arranged in an array, the pixel unit comprising M adjacent sub-pixels arranged sequentially in the row direction; the plurality of data lines comprising a plurality of basic periods arranged sequentially in the row direction, the basic period comprising U1 data lines, a first basic unit, and U2 data lines arranged sequentially in the row direction; the U1 data line and the U2 data line between two adjacent first basic units constitute a second basic unit; the first basic unit comprises M adjacent data lines, the sum of U1 and U2 being M; and an adjacent first basic unit and a second basic unit constitute a touch basic unit; The multiple touch sensing structures include at least one first touch sensing structure and a plurality of second touch sensing structures, wherein the first touch sensing structure corresponds to adjacent L1 touch basic units, one of the first basic units located on one side of the L1 touch basic units, or one of the second basic units, and the second touch sensing structure corresponds to adjacent L2 touch basic units, where L1, L2, U1, and U2 are all positive integers; The orthographic projection of the touch sensing structure on the substrate at least partially overlaps with the orthographic projection of the corresponding data line on the substrate.

2. The touch display substrate according to claim 1, wherein: The value of M is 3, the value of U1 is 2, the value of U2 is 1, and the value of L1 is equal to the value of L2; Among the multiple data lines, 6 data lines form a basic cycle, and the data lines in one basic cycle include the first data line to the sixth data line arranged in sequence along the row direction; the U1 data lines include the first data line and the second data line, the first basic unit includes the third data line to the fifth data line arranged in sequence along the row direction, and the U2 data lines include the sixth data line.

3. The touch display substrate according to claim 2, wherein: At least part of the data line includes a data line main body and a first bending structure connected to the data line main body. The data line main body extends along the column direction and is located between two adjacent columns of sub-pixels. It is configured to be electrically connected to sub-pixels located in at least one row of the two adjacent columns of sub-pixels. The first bending structure bends in the opposite direction of the row direction to bypass at least one row of sub-pixels in the two adjacent columns of sub-pixels. At least part of the first bending structure is located between two adjacent columns of sub-pixels and is configured to be electrically connected to the two adjacent columns of sub-pixels. In the column direction, in the same data line, at least one end of the first bending structure is connected to the data line main body.

4. The touch display substrate according to claim 3, wherein: The first bending structure includes a first data structure part, a second data structure part and a third data structure part. In the column direction, the first data structure part and the third data structure part are located on both sides of the at least one row of sub-pixels in the two columns of sub-pixels bypassed by the first bending structure. The two ends of the second data structure part are respectively connected to the first data structure part and the third data structure part, and the other ends of the first data structure part and the third data structure part are connected to the data line main body. In the row direction, the second data structure part is located between two adjacent columns of sub-pixels and is configured to be electrically connected to at least one row of sub-pixels in the two adjacent columns of sub-pixels.

5. The touch display substrate according to claim 4, wherein: The pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel.

6. The touch display substrate according to claim 5, wherein: In the row direction, in the multiple sub-pixel columns corresponding to one of the touch sensing structures, the multiple sub-pixels in the first column of sub-pixels are second sub-pixels, the multiple sub-pixels in the second column of sub-pixels are third sub-pixels, and the multiple sub-pixels in the third column of sub-pixels are first sub-pixels; in the opposite direction of the row direction, in the multiple sub-pixel columns corresponding to one of the touch sensing structures, the multiple sub-pixels in the first column of sub-pixels are first sub-pixels, the multiple sub-pixels in the second column of sub-pixels are third sub-pixels, and the multiple sub-pixels in the third column of sub-pixels are second sub-pixels.

7. The touch display substrate according to claim 6, wherein: In the row direction, among the multiple data lines corresponding to one touch sensing structure, the first data line is a sixth data line, a main portion of the first data line is configured to be connected to sub-pixels in a first column and a second column corresponding to the touch sensing structure, and a second data structure portion of the first data line is configured to be connected to sub-pixels in a first-to-last column and a second-to-last column corresponding to an adjacent touch sensing structure in a direction opposite to the row direction; In the opposite direction of the row direction, among the multiple data lines corresponding to the touch sensing structure, the first data line is the fifth data line, the main body of the first data line is set to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the second touch sensing structure, and the second data structure part of the first data line is set to be connected to the third column of sub-pixels and the fourth column of sub-pixels corresponding to the second touch sensing structure.

8. The touch display substrate according to claim 6, wherein: In the row direction, among the multiple data lines corresponding to one touch sensing structure, the first data line is a third data line, a main portion of the first data line is configured to be connected to the first column and the second column of sub-pixels corresponding to the touch sensing structure, and a second data structure portion of the first data line is configured to be connected to the first-to-last column and the second-to-last column of sub-pixels corresponding to the touch sensing structure adjacent in the opposite direction of the row direction; In the opposite direction of the row direction, among the multiple data lines corresponding to the touch sensing structure, the first data line is the second data line, the main body of the first data line is set to be connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the touch sensing structure, and the second data structure part of the first data line is set to be connected to the third column of sub-pixels and the fourth column of sub-pixels corresponding to the touch sensing structure.

9. The touch display substrate according to claim 5, wherein: In the row direction, the first data line corresponding to the first touch sensing structure is a sixth data line, and the main portion of the first data line is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure; In the opposite direction of the row direction, the first data line corresponding to the first touch sensing structure is the fifth data line, and the second data structure portion of the first data line is configured to be electrically connected to the first column of sub-pixels and the second column of sub-pixels corresponding to the first touch sensing structure.

10. The touch display substrate according to claim 5, wherein: In the row direction, each data line is electrically connected to four adjacent columns of sub-pixels, each second data structure portion is electrically connected to a row of sub-pixels in two adjacent columns of sub-pixels, and a main body portion of the data line located between two adjacent first bending structures in the column direction is electrically connected to a row of sub-pixels in the other two adjacent columns of sub-pixels; In the first data line and the fourth data line, the data line main portion of each data line is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column, and the second data structure portion of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column; In the second data line and the fifth data line, the data line main portion of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column, and the second data structure portion of each data line is electrically connected to an adjacent second sub-pixel column and a first sub-pixel column; In the third data line and the sixth data line, the data line main body of each data line is electrically connected to an adjacent third sub-pixel column and a second sub-pixel column, and the second data structure of each data line is electrically connected to an adjacent first sub-pixel column and a third sub-pixel column.

11. The touch display substrate according to claim 2 or 10, wherein: The pixel unit includes three types of sub-pixels, namely, a first sub-pixel, a second sub-pixel, and a third sub-pixel; in the first data line, the second data line, the fourth data line, and the fifth data line, two adjacent sub-pixels in the sub-pixels sequentially connected to each data line are sub-pixels of different types; in the third data line and the sixth data line, in the sub-pixels sequentially connected to each data line, two second sub-pixels are spaced between adjacent first sub-pixels and second sub-pixels.

12. The touch display substrate according to claim 11, wherein: In the first data line and the fourth data line, the number of second sub-pixels connected to each data line is equal to the sum of the number of first sub-pixels and third sub-pixels connected to it; in the second data line and the fifth data line, the number of first sub-pixels connected to each data line is equal to the sum of the number of second sub-pixels and third sub-pixels connected to it; in the third data line and the sixth data line, the number of third sub-pixels connected to each data line is equal to the sum of the number of first sub-pixels and second sub-pixels connected to it.

13. The touch display substrate according to claim 2, wherein: The polarities of the data signals provided by two adjacent data lines are opposite.

14. The touch display substrate according to any one of claims 5 to 13, wherein: The first sub-pixel is a sub-pixel that emits red light, the second sub-pixel is a sub-pixel that emits green light, and the third sub-pixel is a sub-pixel that emits blue light.

15. The touch display substrate according to claim 1 further includes a plurality of touch signal lines, the plurality of data lines and the plurality of touch signal lines are alternately arranged along the row direction, the plurality of touch signal lines extend along the column direction and are arranged at intervals along the row direction, and the touch signal lines are electrically connected to the corresponding touch sensing structures through a column of vias.

16. The touch display substrate according to claim 15, wherein: The touch display substrate includes a display area and a data binding end located on one side of the display area. In the display area, a touch sensing structure is electrically connected to two touch signal lines through two columns of vias, and the two touch signal lines are connected in parallel at their ends close to the data binding end.

17. The touch display substrate according to claim 15 or 16, wherein: The via holes are arranged in a column of sub-pixels adjacent to the corresponding touch signal line, and two sub-pixels where two adjacent via holes on one touch signal line are located are spaced at least one sub-pixel apart in the column direction.

18. The touch display substrate according to claim 15 or 16 further includes a virtual touch signal line, at least part of the touch sensing structure corresponds to at least one of the virtual touch signal lines, the orthographic projection of the virtual touch signal line on the substrate at least partially overlaps with the orthographic projection of the corresponding touch sensing structure on the substrate, and the touch sensing structure is electrically connected to the corresponding virtual touch signal line through a via.

19. The touch display substrate according to claim 15 or 16, further comprising a third conductive layer, a fourth conductive layer, and a fifth conductive layer, wherein the third conductive layer, the fourth conductive layer, and the fifth conductive layer are stacked in sequence in a direction perpendicular to the plane of the substrate, the third conductive layer comprises the plurality of touch signal lines, each of which is provided with a touch electrode block, the fourth conductive layer comprises the plurality of touch sensing structures, the fifth conductive layer comprises a plurality of transfer electrodes, and the vias, the touch transfer electrodes, and the touch electrode blocks are all rectangular structures; The plurality of transfer electrodes, the touch electrode blocks on the plurality of touch signal lines, and the plurality of vias correspond to each other in a one-to-one manner; The orthographic projection of the via hole on the substrate is located within the range of the orthographic projection of the corresponding switching electrode on the substrate, and the orthographic projection of the switching electrode on the substrate is located within the range of the orthographic projection of the corresponding touch electrode block on the substrate; The orthographic projection of the via hole on the substrate is at least partially covered by the orthographic projection of the corresponding touch sensing structure on the substrate, and at least partially not covered by the orthographic projection of the corresponding touch sensing structure on the substrate.

20. The touch display substrate according to claim 16, further comprising a first conductive layer and a second conductive layer, wherein in a direction perpendicular to a plane of the base, the first conductive layer is located between the second conductive layer and the base, and the second conductive layer is located between the first conductive layer and the third conductive layer; the touch display substrate further comprises a frame region located around the display area, the plurality of data lines and the plurality of touch signal lines are alternately arranged along a row direction in the display area; the data lines are located in the second conductive layer, and the touch signal lines are located in the third conductive layer in the display area; The border area includes a first border area. In the column direction, the first border area includes a first area, a second area, and the data binding end arranged in sequence, and the first area is located between the display area and the second area. In the first area of ​​the first frame area, the touch signal lines are connected to the wiring in the first conductive layer through the first connecting vias, and the plurality of touch signal lines in the first conductive layer and the plurality of data lines in the second conductive layer are alternately arranged along the column direction; In the second area of ​​the first frame area, the touch signal lines located in the first conductive layer are converted into lines located in the second conductive layer through second conversion vias, and multiple touch signal lines are divided into multiple touch signal lines of the first conductive layer and multiple touch signal lines of the second conductive layer. The touch signal lines of the first conductive layer and the touch signal lines of the second conductive layer are arranged alternately along the column direction.

21. A display device comprising at least one touch display substrate according to any one of claims 1 to 20.

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