Touch substrate, touch display substrate and touch display device

Abstract

The invention provides a touch substrate, a touch display substrate and a touch display device. The touch substrate comprises a touch layer, the touch layer comprises sensor patterns, the sensor patterns comprise first sensor patterns and second sensor patterns, the first sensor patterns extend in the first direction and are arranged at intervals in the second direction, and the second sensor patterns extend in the second direction and are arranged at intervals in the first direction; the first direction intersects with the second direction; the first sensor pattern and the second sensor pattern are mutually insulated; at least one of the first sensor pattern and the second sensor pattern comprises a main body part and a bridging part, a touch control wiring area is arranged between at least part of adjacent main body parts, and the main body parts located on the two sides of the touch control wiring area are connected through the bridging part; the touch substrate further comprises a touch wire and an outgoing line, and one end of the touch wire is connected with the sensor pattern; the other end of the touch control wire is connected with the outgoing line, and at least part of the touch control wire is arranged in the touch control wire area.

Description

Touch substrate, touch display substrate, and touch display device Technical Field

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

[0002] With the rapid development of active-matrix organic light-emitting diodes (AMOLED), the development of touch display devices has entered the era of narrow bezels and full-screen displays. To provide users with a better user experience, full-screen, narrow bezels, high resolution, rollable and wearable displays, and foldable displays have gradually become important development directions for AMOLED displays. As the panel borders shrink, the space for peripheral wiring is compressed. Optimizing touch wiring design is a key research topic for researchers.

[0003] The above information disclosed in this section is only for understanding the background of the technical concept of the present disclosure and therefore the above information may contain information that does not constitute the prior art.

[0004] Summary of the Invention

[0005] In one aspect, a touch control substrate is provided, comprising: a touch control layer, the touch control layer including sensor patterns, the sensor patterns including first sensor patterns and second sensor patterns, the first sensor patterns extending along a first direction and spaced apart along a second direction, the second sensor patterns extending along the second direction and spaced apart along the first direction, the first direction and the second direction intersecting; the first sensor patterns and the second sensor patterns being insulated from each other;

[0006] At least one of the first sensor pattern and the second sensor pattern includes a main body portion and a bridge portion, wherein a touch wiring area is provided between at least some adjacent main bodies, and the main bodies located on both sides of the touch wiring area are connected by the bridge portion;

[0007] The touch substrate further includes a touch line and a lead line, wherein one end of the touch line is connected to the sensor pattern; the other end of the touch line is connected to the lead line.

[0008] Wherein, at least part of the touch wiring is arranged in the touch wiring area;

[0009] The orthographic projection of the touch trace on the plane where the sensor pattern is located does not overlap with the orthographic projection of the main body on the plane where the sensor pattern is located.

[0010] According to some exemplary embodiments, the touch routing area includes multiple rows of first sub-touch routing areas extending along a first direction and multiple columns of second sub-touch routing areas extending along a second direction, wherein the first direction is a row direction and the second direction is a column direction, and multiple rows of the first sub-touch routing areas and multiple columns of the second sub-touch routing areas intersect with each other to form a grid-shaped touch routing area.

[0011] According to some exemplary embodiments, the touch substrate includes a first side region and a second side region that are opposite to each other, and the first side region and the second side region both extend along a first direction;

[0012] The first ends of the plurality of columns of the second sensor patterns are arranged in the first side area, and the lead lines are arranged in the second side area;

[0013] The touch routing includes multiple second sub-touch routings, wherein one end of the multiple second sub-touch routings is respectively connected to the first end of multiple columns of the second sensor patterns; and the other end of the multiple second sub-touch routings is respectively connected to the multiple lead lines.

[0014] According to some exemplary embodiments, the second sub-touch trace includes a first portion, a second portion, and a third portion, and the second portion is located between the first portion and the third portion, wherein:

[0015] The second portion extends along a second direction, and the second portion is disposed in the second sub-touch wiring area.

[0016] According to some exemplary embodiments, the first portion includes a first sub-portion located in the first sub-touch wiring area and a second sub-portion located in the second sub-touch wiring area, and the first sub-portion and the second sub-portion are arranged in a zigzag pattern.

[0017] According to some exemplary embodiments, the third portion includes a third sub-portion located in the first sub-touch wiring area and a fourth sub-portion located in the second sub-touch wiring area, and the third sub-portion and the fourth sub-portion are arranged in an L-shaped pattern.

[0018] According to some exemplary embodiments, the touch routing line further includes a plurality of first sub-touch routing lines, and the plurality of first sub-touch routing lines are respectively connected to a plurality of rows of the first sensor patterns.

[0019] The first sensor pattern includes a conductive transition portion located in the middle area of ​​the first sensor pattern, one end of the first sub-touch trace is connected to the conductive transition portion, and the other end of the first sub-touch trace is connected to the lead line located in the second side area.

[0020] According to some exemplary embodiments, the first sub-touch trace includes a fourth portion, a fifth portion, and a sixth portion, wherein the fifth portion is located between the fourth portion and the sixth portion.

[0021] wherein the fourth portion is connected to the first sensor pattern, and the sixth portion is connected to the lead wire;

[0022] The fourth portion extends along the second direction, the fifth portion extends along the first direction, and the sixth portion extends along the second direction.

[0023] According to some exemplary embodiments, the fourth portion is located in the second sub-touch wiring area; and / or the fifth portion is located in the first sub-touch wiring area; and / or the sixth portion is located in the second sub-touch wiring area.

[0024] According to some exemplary embodiments, the touch substrate includes a first region, a second region, and a third region sequentially arranged along a first direction, wherein:

[0025] The second sub-touch trace is disposed in the first area or the third area;

[0026] The first sub-touch wiring is disposed in the second area.

[0027] According to some exemplary embodiments, the touch substrate includes N second sub-touch lines arranged in the first area and M second sub-touch lines arranged in the third area, wherein M is greater than or equal to 1, N is greater than or equal to 1, M is equal to N; or, M is not equal to N.

[0028] According to some exemplary embodiments, the touch substrate includes L first sub-touch traces disposed in the second area, where L is greater than or equal to 1;

[0029] The second region includes a first sub-region located on a first side of the conductive transition portion and a second sub-region located on a second side of the conductive transition portion, wherein:

[0030] A portion of the multiple rows of first sensor patterns are sequentially connected to the multiple first sub-touch traces located in the first sub-region row by row; and another portion of the multiple rows of first sensor patterns are sequentially connected to the multiple first sub-touch traces located in the second sub-region row by row.

[0031] According to some exemplary embodiments, the touch control substrate includes a first conductive layer and a second conductive layer, wherein the main portion of the sensor pattern is located in the first conductive layer, and the bridge portion of the sensor pattern is located in the second conductive layer.

[0032] According to some exemplary embodiments, the touch control substrate includes a first conductive layer and a second conductive layer, wherein the main body of the sensor pattern includes a first main body located in the first conductive layer and a second main body located in the second conductive layer;

[0033] The bridge portion is located in the first conductive layer; or, the bridge portion is located in the second conductive layer.

[0034] According to some exemplary embodiments, the touch trace is located in the first conductive layer; and / or,

[0035] A portion of the touch trace is located in the first conductive layer, and another portion of the touch trace is located in the second conductive layer.

[0036] According to some exemplary embodiments, the touch substrate further includes a dummy electrode trace, wherein the dummy electrode trace is provided in an area of ​​the touch trace region where no touch trace is provided, wherein the dummy electrode trace is located in the first conductive layer; and / or,

[0037] A portion of the dummy electrode trace is located in the first conductive layer, and another portion of the dummy electrode trace is located in the second conductive layer.

[0038] According to some exemplary embodiments, the sensor pattern includes a plurality of adjacent rows of first sensor patterns, and at least a portion of the plurality of adjacent rows of first sensor patterns share a first sub-touch trace.

[0039] According to some exemplary embodiments, the sensor pattern includes a plurality of adjacent columns of second sensor patterns, and at least a portion of the plurality of adjacent columns of second sensor patterns share a second sub-touch trace.

[0040] According to some exemplary embodiments, at least one of the multiple rows of first touch wiring sub-areas is provided with multiple rows of touch wiring; and / or,

[0041] At least one column of the plurality of columns of second touch wiring sub-areas is provided with a plurality of columns of touch wiring.

[0042] In another aspect, a touch display substrate is provided, wherein the touch display substrate comprises the touch substrate as described in any one of the above items.

[0043] According to some exemplary embodiments, the touch display substrate includes a display area, and at least one touch trace is located in the display area.

[0044] According to some exemplary embodiments, the touch display substrate further includes a base substrate and an encapsulation layer, and the touch layer is located on a side of the encapsulation layer away from the base substrate.

[0045] In yet another aspect, a touch display device is provided, characterized in that the touch display device comprises the touch display substrate as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0047] FIG1A is a schematic plan view of a touch display substrate according to an embodiment of the present disclosure;

[0048] FIG1B is a cross-sectional view of the touch display substrate according to an embodiment of the present disclosure taken along line AA′ in FIG1A , schematically illustrating a bent state of the touch display substrate;

[0049] FIG1C is a cross-sectional view of the touch display substrate according to an embodiment of the present disclosure taken along line BB′ in FIG1 , schematically illustrating an unfolded state of the touch display substrate;

[0050] FIG2 is a schematic plan view of a touch substrate according to some exemplary embodiments of the present disclosure;

[0051] FIG3 is a schematic plan view of a touch substrate according to some exemplary embodiments of the present disclosure;

[0052] FIG4 is a partial plan view of the touch substrate according to FIG3 , showing multiple columns of touch wiring;

[0053] FIG5 is a partial schematic plan view of the touch substrate according to FIG3 , showing multiple rows of touch lines;

[0054] FIG6 is a partial plan view of the touch substrate according to FIG3 , showing a Z-shaped touch trace;

[0055] FIG7 is a partial plan view of the touch substrate according to FIG3 , showing an L-shaped touch trace;

[0056] FIG8 is a partial plan view of the touch substrate according to FIG3 , showing another Z-shaped touch trace;

[0057] FIG9 is a partial schematic plan view of a touch substrate according to an exemplary embodiment of the present disclosure;

[0058] FIG10 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0059] FIG11 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0060] FIG12 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0061] FIG13 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0062] FIG14 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0063] FIG15 is a partial plan view of a touch substrate according to an embodiment of the present disclosure;

[0064] FIG16 is a schematic structural diagram of a touch display device according to some embodiments of the present disclosure.

[0065] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present invention, the sizes of layers, structures or regions may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0066] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0067] It should be noted that in the drawings, the sizes and relative sizes of elements may be exaggerated for clarity and / or descriptive purposes. Thus, the sizes and relative sizes of the individual elements are not necessarily limited to those shown in the drawings. In the specification and drawings, the same or similar reference numerals indicate the same or similar parts.

[0068] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meanings understood by those of ordinary skill in the art. The terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are simply used to distinguish different components. The terms "include," "comprising," and similar words mean that the element or object preceding the word encompasses the elements or objects listed after the word, and their equivalents, without excluding other elements or objects.

[0069] Unless otherwise specified, directional terms such as "upper," "lower," "left," "right," "inner," and "outer" are used herein to indicate positions or relationships based on the figures shown. These terms are intended solely to facilitate the description of the present disclosure and are not intended to indicate or imply that the devices, components, or parts referred to must have, be constructed, or operate in a specific orientation. It should be understood that when the absolute positions of the objects being described change, the relative positions they represent may also change accordingly. Therefore, these directional terms should not be construed as limiting the present disclosure.

[0070] It should be noted that, in this article, the term "the same layer" refers to a layer structure formed by using the same film-forming process to form a film layer used to form a specific pattern, and then patterning the film layer using the same mask through a single patterning process. Depending on the specific pattern, a single patterning process may include multiple exposure, development, or etching processes, and the specific pattern in the resulting layer structure may be continuous or discontinuous. In other words, multiple elements, components, structures, and / or parts located in the "same layer" are composed of the same material and are formed through the same patterning process. Typically, multiple elements, components, structures, and / or parts located in the "same layer" have approximately the same thickness.

[0071] Those skilled in the art should understand that, in this article, unless otherwise specified, the expression "height" or "thickness" refers to the dimension of the surface of each film layer arranged perpendicular to the display substrate, that is, the dimension along the light emitting direction of the display substrate, or the dimension along the normal direction of the display device.

[0072] In this document, the directional expressions "first direction" and "second direction" are used to describe different directions of a touch unit, such as the longitudinal and transverse directions of a touch unit, or the row and column directions of a touch unit arrangement. It should be understood that such expressions are merely exemplary descriptions and are not intended to limit the present disclosure.

[0073] Figure 1A is a schematic plan view of a touch display substrate according to an embodiment of the present disclosure. Figure 1B is a cross-sectional view of the touch display substrate taken along line AA' in Figure 1A , schematically illustrating a bent state of the touch display substrate according to an embodiment of the present disclosure. Figure 1C is a cross-sectional view of the touch display substrate taken along line BB' in Figure 1 , schematically illustrating an unfolded state of the touch display substrate according to an embodiment of the present disclosure.

[0074] 1 , a touch display substrate 1000 according to an embodiment of the present disclosure may include a base substrate 10, which may be formed of, for example, glass, plastic, polyimide, or the like. The base substrate 10 includes a display area AA and a peripheral area (or non-display area) NA located on at least one side of the display area AA.

[0075] The touch display substrate may include a plurality of pixel units P (schematically shown in a dotted box in FIG1 ) disposed in a display area AA. The plurality of pixel units P may be arranged in an array on a base substrate 10 along a first direction X and a second direction Y. Each pixel unit P may further include a plurality of sub-pixels, such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel. FIG1 schematically illustrates one sub-pixel SP.

[0076] For example, the touch display substrate includes a signal input side IN1 (shown on the lower side in FIG1 ). A data driver chip IC can be provided on the signal input side IN1 . The data driver chip IC can be electrically connected to the pixel units P located in the display area via a plurality of signal traces, and the pixel driver circuit can be electrically connected to the data driver chip IC. In this way, signals such as data signals, scan signals, and touch signals can be transmitted from the signal input side IN1 to the plurality of pixel units P.

[0077] For example, as shown in FIG. 1A , the peripheral area NA may be located on four sides of the display area AA, that is, it surrounds the display area AA.

[0078] It should be noted that in the drawings, the pixel units and sub-pixels are schematically shown in a rectangular shape, but this does not constitute a limitation on the shapes of the pixel units and sub-pixels included in the touch display substrate provided by the embodiments of the present disclosure.

[0079] In an embodiment of the present disclosure, each pixel unit P may include a pixel driving circuit and a light-emitting device electrically connected to the pixel driving circuit. For example, the light-emitting device may be an organic light-emitting diode (OLED) or a quantum dot light-emitting diode (QLED). The light-emitting device may include a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode.

[0080] One of the first electrode and the second electrode is an anode, and the other is a cathode. For example, the first electrode can be an anode, and the second electrode can be a cathode. The light-emitting layer can have a multilayer structure, for example, including a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, and an electron injection layer.

[0081] It should be noted that, for example, light-emitting devices such as organic light-emitting diodes can be actively driven or passively driven. The passively driven OLED array substrate is composed of a cathode and an anode, and the intersection of the anode and the cathode can emit light. The driving circuit can be externally mounted by connection methods such as tape carrier packaging or glass carrier chips. The actively driven OLED array substrate can be equipped with a pixel driving circuit for each pixel. The pixel driving circuit may include a thin film transistor with a switching function (i.e., a switching transistor), a thin film transistor with a driving function (i.e., a driving transistor) and a charge storage capacitor. In addition, the pixel driving circuit may also include other types of thin film transistors with compensation functions. It should be understood that in the embodiments of the present disclosure, the touch display substrate can be equipped with various known types of pixel driving circuits, which will not be described in detail here. For example, each pixel unit P may include a pixel driving circuit with a circuit structure such as 7T1C, 7T2C, 8T2C or 4T1C in the art. The pixel driving circuit operates under the control of a data signal transmitted through a data line and a gate scan signal and a light-emitting control signal transmitted through a signal line to drive the light-emitting device to emit light, thereby realizing operations such as display.

[0082] For example, the touch display substrate may include a drive circuit layer, in which the pixel drive circuit may be disposed. An insulating layer may be disposed between the drive circuit layer and the light-emitting device. The insulating layer may be a single insulating film layer or a stack of multiple insulating film layers.

[0083] For example, the touch display substrate may further include various signal lines disposed on the base substrate 10. These signal lines include data lines, gate scan signal lines, light emission control signal lines, first power supply lines, second power supply lines, and the like, so as to provide various signals, such as data signals, gate scan signals, light emission control signals, first power supply voltages, and second power supply voltages, to the pixel driving circuit in each sub-pixel. In the embodiment shown in FIG1A , scan lines GL and data lines DL are schematically illustrated. The scan lines GL and data lines DL may be electrically connected to each pixel unit P.

[0084] 1A to 1C , a touch display substrate according to an embodiment of the present disclosure includes a display area AA and a peripheral area NA surrounding the display area AA. The peripheral area NA includes a first border area NA1, a second border area NA2, a third border area NA3, and a fourth border area NA4. For example, the first border area NA1, the second border area NA2, the third border area NA3, and the fourth border area NA4 can be respectively regarded as the bottom border, top border, left border, and right border of the touch display substrate.

[0085] When viewed from the front, the touch display substrate according to an embodiment of the present disclosure comprises a display area and a peripheral area. The display area of ​​the touch display substrate is arranged with light-emitting pixels and can display images. The peripheral area surrounds the display area. Typically, when viewed from the front, the display area is surrounded by a border area. However, some touch display substrates prefer as narrow a border area as possible for aesthetic reasons. Therefore, in applications such as full-screen mobile phones, border areas may not be provided on the left, right, or top sides of the display area. Nevertheless, the touch display substrate still requires at least one border area to centrally accommodate necessary circuitry that is difficult to bend, and this border area is typically located below the display area. For example, even in current full-screen mobile phone applications, there is still a lower border area below the phone that does not display images. It should be understood that the terms "top," "bottom," "left," "right," "front," and "back" herein are intended to describe relative positions between components, not absolute positions. In this disclosure, the lower border is used for ease of description and does not necessarily imply that it is located below the display screen. Furthermore, while conventional touch display substrates are rectangular and the bottom bezel region is a rectangular area on one of their four sides, touch display substrates with other outer contour shapes may also have a bezel region of any shape where circuits are centrally located. Any bezel with centralized circuit wiring on a touch display substrate may be considered a bottom bezel, and in this disclosure, it is defined as being located at the bottom, with the display area correspondingly located at the top.

[0086] In an embodiment of the present disclosure, at least a portion of the first border area NA1 can be bent to the non-display side of the touch display substrate, thereby reducing the area of ​​the non-display area in the display side of the touch display substrate, thereby realizing a large-screen and narrow-border design of the touch display substrate. For example, the first border area NA1 may include a first sub-border area NA11, a second sub-border area NA12 and a bending area B, the first sub-border area NA11 is located on the side of the second sub-border area NA12 close to the display area AA, and the bending area B is arranged between the first sub-border area NA11 and the second sub-border area NA12. The bending area B can be bent along the bending axis so that the second sub-border area NA12 can be bent to the non-display side of the touch display substrate. For example, a driving chip (IC) and a flexible circuit board (FPC) and other structures for controlling the display and touch of the display area AA can be set in the second sub-border area NA12.

[0087] For example, referring to FIG1C , the touch display substrate may include a base substrate 10, a drive circuit layer 40, an encapsulation layer 20, and a touch layer 30. The drive circuit layer 40, the encapsulation layer 20, and the touch layer 30 are arranged in a direction away from the base substrate 10. By directly disposing the touch layer 30 on the inorganic layer of the encapsulation layer 20, the thickness of the touch substrate can be reduced, facilitating a lighter and thinner touch display.

[0088] For example, with technological advancements, the market is placing increasing demands on thinner display devices (such as mobile phones), leading to the emergence of Flexible Multi-Layer On Cell (FMLOC) technology. In the FMLOC process, a metal grid electrode layer is fabricated on the display module's encapsulation layer to implement touch functionality, eliminating the need for an external touch layer and thus reducing the overall thickness of the display.

[0089] It should be noted that the embodiment of the present disclosure shows that the touch layer is located at the top of the touch display substrate for illustrative purposes only and does not limit the location of the touch layer. In some embodiments of the present disclosure, the touch layer may also be located in the middle area of ​​the touch display substrate. For example, after the touch layer is provided on the encapsulation layer 20, other film layers may be provided on the touch layer, such as a light shielding layer, a lens structure, or other structural film layers. In some embodiments, a portion of the metal traces in the touch layer may be reused as other film layers. For example, a portion of the metal traces in the touch layer may be reused as a light shielding layer.

[0090] In FMLOC touch technology, the pattern of the touch unit adopts a conductive grid structure. The touch drive electrodes and touch sensing electrodes can both use the same film layer. The touch drive electrodes and touch sensing electrodes are separated by breaking the wires. Touch is achieved by monitoring the mutual capacitance value between the touch drive electrodes and touch sensing electrodes at each point on the display panel.

[0091] FIG. 2 is a schematic plan view of a touch substrate according to some exemplary embodiments of the present disclosure.

[0092] For example, in some embodiments of the present disclosure, referring to FIG. 2 , the touch substrate 100 may include a touch layer 30. During application, the touch layer 30 (e.g., an FMLOC structure) refers to a metal grid electrode layer fabricated on the package substrate of the display panel to perform touch control. Referring to FIG. 2 , the touch layer 30 includes sensor patterns SP arranged in an array. For example, the sensor patterns may include a first sensor pattern SP1 and a second sensor pattern SP2. The first sensor pattern SP1 extends along a first direction X and is spaced apart along a second direction Y. The second sensor pattern SP2 extends along the second direction Y and is spaced apart along the first direction X. The first direction X and the second direction Y intersect. The first sensor pattern SP1 and the second sensor pattern SP2 are insulated from each other. At the intersection of the first sensor pattern SP1 and the second sensor pattern SP2, a bridge design may be used to achieve cross-connection at the intersection.

[0093] At least one of the first sensor pattern SP1 and the second sensor pattern SP2 includes a main portion SPM and a bridge portion SPD. Adjacent main portions SPM may be connected via the bridge portion SPD. In some embodiments, portions of adjacent main portions SPM1 in the first sensor pattern SP1 may also be connected via a connection portion SPL1. The main portion SPM1 and the connection portion SPL1 in the first sensor pattern SP1 may be located on the same layer. Adjacent main portions SPM2 in the second sensor pattern SP2 may be connected via a bridge portion SPD2, and the main portion SPM2 and the bridge portion SPD2 in the second sensor pattern SP2 may be located on different layers. The combined design of the main portions, the connection portion, and the bridge portion ensures that the first sensor pattern SP1 and the second sensor pattern SP2 form a grid array and are insulated from each other.

[0094] In other embodiments, the main portions of the first sensor patterns SP1 may be connected via a bridge portion, and the main portions of the second sensor patterns SP2 may be connected via a connecting portion. Alternatively, in some embodiments, the main portions of the first sensor patterns SP1 may be connected via a hybrid design of connecting portions and bridge portions, and the main portions of the second sensor patterns SP2 may be connected via a bridge portion. Alternatively, in some embodiments, the main portions of the first sensor patterns SP1 may be connected via a bridge portion, and the main portions of the second sensor patterns SP2 may be connected via a hybrid design of connecting portions and bridge portions.

[0095] Through the flexible design of the bridging part and the connecting part, various combination modes of the grid-shaped sensor pattern can be realized, which is beneficial to the wiring design of the subsequent touch routing.

[0096] The grid-like sensor pattern can be connected to an external driver chip via multiple touch traces and lead lines, thereby collecting and transmitting touch signals and achieving touch control. For example, referring again to FIG2 , multiple rows of first sensor patterns SP1 are respectively connected to multiple first sub-touch traces TL1, which can serve as sensing signal transmission lines for the touch device. Multiple columns of second sensor patterns SP2 are respectively connected to multiple second sub-touch traces TL2, which can serve as transmission signal transmission lines for the touch device. The first sub-touch traces TL1 and the second sub-touch traces TL2 can each be electrically connected to an external driver chip IC via lead lines Ox, thereby acquiring and transmitting touch signals from the touch device and achieving touch control.

[0097] In related technologies, touch lines are usually designed in the border area of ​​the display device (i.e., the non-display area). However, with the development of narrow and even ultra-narrow borders, the wiring space in the border area of ​​the display device is getting smaller and smaller, which compresses the line width of the touch lines, thereby increasing the resistance of the touch lines. The increase in overall load leads to a decrease in the touch drive frequency of the touch substrate, affecting the sensitivity, signal-to-noise ratio, and reporting rate, thereby reducing the performance of the touch device. In addition, for display devices with narrower borders or even no borders, it is impossible to achieve routing layout by further compressing the line width of the touch lines.

[0098] Figure 3 is a plan view schematic diagram of a touch substrate according to some exemplary embodiments of the present disclosure; Figure 4 is a partial plan view schematic diagram of the touch substrate shown in Figure 3, showing multiple columns of touch wiring; Figure 5 is a partial plan view schematic diagram of the touch substrate shown in Figure 3, showing multiple rows of touch wiring.

[0099] With reference to Figures 3-5 , the touch substrate may include a display area AA and a non-display area NA. A ground line GND may be provided between the display area AA and the frame of the base substrate 10. The ground line GND can be used to reduce static electricity on the touch layer and improve the stability of the touch layer. The touch substrate may also include an array of sensor patterns SP. For example, the sensor patterns SP may include a first sensor pattern SP1 and a second sensor pattern SP2. The first sensor pattern SP1 extends along a first direction X and is spaced apart along a second direction Y. The second sensor pattern SP2 extends along the second direction Y and is spaced apart along the first direction X, with the first direction X and the second direction Y intersecting. The first sensor pattern SP1 and the second sensor pattern SP2 are insulated from each other.

[0100] It should be noted that the rectangular sensor pattern in Figure 3 is for illustrative purposes only and does not limit the sensor pattern. In some embodiments, the sensor pattern may employ a hybrid design of a main portion, a connecting portion, and a bridging portion, such as that shown in Figure 2 . For example, a cross-line connection may be achieved at the intersection of the first sensor pattern SP1 and the second sensor pattern SP2 via a connecting portion SPL and a bridging portion SPD. At least one of the first sensor pattern SP1 and the second sensor pattern SP2 includes a main portion SPM and a bridging portion SPD. A touch trace area TA is provided between at least some adjacent main portions SPM. The main portions SPM located on either side of the touch trace area TA are connected via the bridging portion SPD. The touch substrate also includes a touch trace TL and a lead line Ox. One end of the touch trace TL is connected to the sensor pattern SP, and the other end of the touch trace TL is connected to the lead line Ox. At least a portion of the touch trace TL is provided within the touch trace area TA.

[0101] In some embodiments, all touch traces TL may be located in the touch trace area TA.

[0102] For example, the orthographic projection of the touch trace TL on the plane where the sensor pattern is located does not overlap with the orthographic projection of the main body SPM on the plane where the sensor pattern is located. The plane where the sensor pattern is located may be parallel to the plane formed by the first direction X and the second direction Y.

[0103] The touch routing area is designed in the blank area between adjacent main body parts, while the main body parts are located in the display area. That is to say, the touch routing area is designed in the display area, and the touch routing lines located in the touch routing area are also designed in the display area. By flexibly designing the connection method of the main body parts in the sensor pattern, for example, by a mixed design of the connecting part and the bridging part, multiple rows or columns of touch routing areas can be formed between the main body parts. The multi-row touch routing area can be used for the touch routing design along the first direction, and the multi-column touch routing area can be used for the touch routing design along the second direction. The multi-row touch routing area and the multi-column touch routing area can include multiple intersection points O, thereby facilitating the fold line design of the touch routing lines at the intersection. For example, with reference to Figures 4 and 5, the touch routing area TA includes multiple rows of first sub-touch routing areas TA1 extending along the first direction X and multiple columns of second sub-touch routing areas TA2 extending along the second direction Y, wherein the first direction X is the row direction and the second direction Y is the column direction. Multiple rows of first sub-touch trace areas TA1 and multiple columns of second sub-touch trace areas TA2 intersect to form a grid-like touch trace area TA. This grid-like touch trace area design provides more flexible routing space for touch traces, facilitating better touch trace design, thereby achieving a narrow bezel while maintaining good touch control performance for the touch device.

[0104] For example, in some embodiments of the present disclosure, referring to FIG. 3 , the touch trace TL may include a straight-line design, an L-shaped design, or a Z-shaped design. Alternatively, the touch trace TL may include a hybrid design of straight-line, L-shaped, Z-shaped, or other types of traces. By designing a grid-like touch trace area TA, sufficient wiring space can be provided for the touch traces, facilitating the implementation of various touch trace designs and improving the control effect of the touch device.

[0105] For example, in some embodiments of the present disclosure, referring again to FIG. 3 , the touch substrate 100 may include a first side region S1 and a second side region S2 disposed opposite each other, both extending along a first direction X. For example, the first side region S1 may be located on the upper side of the touch substrate 100 near the frame, and the second side region S2 may be located on the lower side of the touch substrate 100 near the frame. The first ends of multiple columns of second sensor patterns SP2 may be located in the first side region S1, and the lead lines Ox may be located in the second side region S2. By designing the first ends of the multiple columns of second sensor patterns SP2 within the first side region S1 and connecting the touch traces to the first ends of the second sensor patterns SP2, combined with a zigzag routing design, the longitudinal routing space in the display area can be fully utilized. The touch traces can be dispersed between different columns of second sensor patterns SP2, enabling connection between multiple columns of sensor patterns SP2 and the lead lines while maintaining a low routing density.

[0106] For example, the touch trace TL includes multiple second sub-touch traces TL2. One end of each of the multiple second sub-touch traces TL2 is connected to the first end of each of the multiple columns of second sensor patterns SP2, and the other end of each of the multiple second sub-touch traces TL2 is connected to the multiple lead lines Ox. In other words, the multiple columns of second sensor patterns SP2 can be connected to an external driver chip via the multiple second sub-touch traces TL2 and the multiple lead lines Ox.

[0107] For example, in the embodiments of the present disclosure, with reference to Figures 3 and 4 , the touch trace area TA can be a grid-shaped touch trace area. Touch traces corresponding to the first ends of multiple columns of second sensor patterns SP2 can be serpentine-wound within the touch trace area TA in the display area AA according to actual needs, sequentially connecting the first ends of multiple columns of second sensor patterns SP2 to corresponding lead lines Ox in series. For example, the second sub-touch trace TL2 includes a first portion TL21, a second portion TL22, and a third portion TL23, with the second portion TL22 located between the first portion TL21 and the third portion TL23. The first portion TL21 and the third portion TL23 are connected in series via the second portion TL22. The second portion TL22 extends along the second direction Y and is located in the second sub-touch trace area TA2. For example, the second portion TL22 can be located in each of the multiple columns of the second sub-touch trace area TA2.

[0108] For example, each column in the second touch trace area TA2 is provided with a second portion TL22 of a trace. In some embodiments, one or more columns in the second touch trace area TA2 may be provided with multiple second portions TL22 of traces, or no second portion TL22 may be provided.

[0109] Figure 6 is a partial plan view of the touch substrate shown in Figure 3, showing a Z-shaped touch trace. Figure 7 is a partial plan view of the touch substrate shown in Figure 3, showing an L-shaped touch trace.

[0110] For example, in an embodiment of the present disclosure, referring to FIG3 and FIG6 , the first portion TL21 includes a first sub-portion TL211 located in the first touch trace sub-area TA1 and a second sub-portion TL212 located in the second touch trace sub-area TA2. For example, the first sub-portion TL211 and the second sub-portion TL212 can be arranged in a zigzag pattern. By utilizing the zigzag pattern design of the first portion TL21, the first ends of multiple columns of second sensor patterns SP2 can be sequentially connected to multiple columns of second portions TL22.

[0111] Referring to Figure 3 , the touch substrate may further include a first region S01 and a third region S03 disposed opposite each other. For example, the first region S01 may include a portion of the left side of the touch substrate, and the third region S03 may include a portion of the right side of the touch substrate. Both the first region S01 and the third region S03 may be located within the display area AA. The first portion TL21 can transfer a portion of the multiple columns of second sensor patterns SP2 to the second portion of traces TL22 located within the first region S01. The first portion TL21 can also transfer another portion of the multiple columns of second sensor patterns SP2 to the second portion of traces TL22 located within the third region S03. Through the transfer design of the first portion TL21, touch traces connected to the multiple columns of second sensor patterns SP2 can be transferred to the left or right side of the touch substrate. The touch traces can then be extended toward the second side region S2 using the second portion TL22 traces extending along the second direction Y to connect to the lead lines Ox located within the second side region S2.

[0112] For example, in some embodiments of the present disclosure, the first side region S1 has a first width d1 in the first direction, and the second side region S2 has a second width d2 in the first direction. To increase the density of the lead lines Ox and facilitate corresponding connections with the pins of the external chip, the second width d2 of the second side region S2 is typically smaller than the first width d1 of the first side region S1. Because the widths of the second side region S2 and the first side region S1 in the first direction are different, multiple columns of second portion TL22 traces extending along the second direction Y need to be connected through the third portion TL23 to connect to the lead lines Ox. For example, with reference to Figures 3 and 7, the third portion TL23 can include a third sub-portion TL233 located in the first touch trace sub-area TA1 and a fourth sub-portion TL234 located in the second touch trace sub-area TA2. The third sub-portion TL233 and the fourth sub-portion TL234 can have an L-shaped trace design. The L-shaped TL23 can gather the scattered second portion TL22 traces together, thereby connecting them to the lead lines Ox.

[0113] The second sub-touch trace TL2 utilizes a serpentine winding design composed of a first portion TL21, a second portion TL22, and a third portion TL23. This allows multiple columns of second sensor patterns SP2 located in the first side region S1 to be connected at their first ends to multiple lead lines Ox located in the second side region S2. The main portion of the second sub-touch trace TL2 extending along the second direction (e.g., the second portion TL22) can be located in the left or right area of ​​the touch substrate, for example, in the first region S01 or the third region S03. This design flexibly utilizes the space within the grid-like touch trace area to sequentially connect multiple columns of second sensor patterns SP2 to the lead lines Ox, thereby connecting the second sensor patterns SP2 to external chip pins.

[0114] FIG. 8 is a partial plan view of the touch substrate shown in FIG. 3 , showing another Z-shaped touch trace.

[0115] For example, in some embodiments of the present disclosure, with reference to FIG3 and FIG8 , the touch traces further include a plurality of first sub-touch traces TL1, each of which is connected to a plurality of rows of first sensor patterns SP1. The first sensor pattern SP1 may include a conductive transition portion SP10 located in the middle region of the first sensor pattern. The conductive transition portion SP10 may be connected to an external chip via the touch trace TL and lead wires Ox, thereby enabling touch signal sensing and transmission. The conductive transition portion SP10 may be a portion of the first sensor pattern SP1 and may be used for electrical connection to the touch trace TL. The plurality of conductive transition portions SP10 in the plurality of rows of first sensor patterns may be aligned or misaligned in the first direction X. For example, one end of a first sub-touch trace TL1 may be connected to the conductive transition portion SP10, and the other end of the first sub-touch trace TL1 may be connected to the lead wire Ox located in the second side region S2.

[0116] Continuing with FIG8 , the first touch sub-trace TL1 includes, for example, a fourth portion TL14, a fifth portion TL15, and a sixth portion TL16. The fifth portion TL15 is located between the fourth and sixth portions TL14 and TL16. The fourth, fifth, and sixth portions TL15 are connected in series, forming a zigzag first touch sub-trace TL1. The fourth portion TL14 can be connected to the first sensor pattern SP1, and the sixth portion TL16 can be connected to the lead line Ox. For example, the fourth portion TL14 extends along the second direction Y, the fifth portion TL15 extends along the first direction X, and the sixth portion TL16 extends along the second direction Y. This zigzag routing design fully utilizes the routing space within the touch routing area. For example, the sixth portion TL16 of the touch routing connected to the first sensor pattern SP1 can be placed in different columns of the second touch sub-trace area TA2. This allows for electrical connection between each first sensor pattern and the corresponding lead line while maintaining a low routing density.

[0117] For example, the fourth portion TL14 can be located in the second touch trace sub-area TA2. The fifth portion TL15 can be located in the first touch trace sub-area TA1. The sixth portion TL16 can be located in the second touch trace sub-area TA2. In other words, at least a portion of the first touch trace sub-area TL1 can be located in the touch trace area TA located in the display area.

[0118] In some embodiments, all of the first touch sub-lines TL1 may be disposed in a touch line area TA located in the display area.

[0119] By placing the first and second sub-touch traces within the display area, the space occupied by the touch traces within the bezel can be reduced, facilitating a narrow-bezel display. Furthermore, the grid-like design of the touch trace area allows for flexible touch trace routing, shortening trace lengths and improving touch control performance.

[0120] For example, in an embodiment of the present disclosure, with continued reference to FIG. 3 , the touch substrate includes a first region S01, a second region S02, and a third region S03 arranged sequentially along a first direction X. For example, the first region S01 may include the left region of the touch substrate, the second region S02 may include the middle region of the touch substrate, and the third region S03 may include the right region of the touch substrate. The first region S01 partially overlaps with the first side region S1. The third region S03 partially overlaps with the first side region S1. The second touch sub-trace TL2 is disposed in the first region S01 or the third region S03. For example, a portion of the first portion TL21 of the second touch sub-trace TL2 may be located in the region where the first region S01 overlaps with the first side region S1, thereby diverting portions of the plurality of columns of second sensor patterns SP2 adjacent to the first region S01 to the left, thereby arranging the corresponding second portions TL22 of the second touch sub-trace TL2 sequentially in the first region S01. Another portion of the first portion TL21 of the second sub-touch trace TL2 can be located in the area where the third area S03 overlaps with the first side area S1, and is used to transfer the multiple columns of second sensor patterns SP2 close to the third area S03 to the right, thereby arranging the corresponding second portions TL22 of the second sub-touch trace TL2 in sequence in the third area S03.

[0121] For example, in some embodiments of the present disclosure, the touch substrate may include N second touch sub-lines TL2 disposed in the first region S01 and M second touch sub-lines TL2 disposed in the third region S03. M is greater than or equal to 1, and N is greater than or equal to 1. The number of second touch sub-lines can be flexibly designed in the left and right regions of the touch substrate.

[0122] For example, in some embodiments, M may be equal to N. That is, the number of second sub-touch lines in the first area S01 of the touch substrate is the same as the number of second sub-touch lines in the third area S03 , and the lines in the first area S01 and the third area S03 may be designed to be substantially symmetrical.

[0123] In some embodiments, M may not be equal to N. For example, M may be greater than N. Alternatively, M may be less than N. For example, in some embodiments, the total number of second touch sub-lines TL2 is an odd number, and the number of second touch sub-lines TL2 located in the left first region S01 may be different from the number of second touch sub-lines TL2 located in the right third region S03. For example, M may differ from N by 1.

[0124] In some embodiments, the touch substrate may be bilaterally asymmetric, and the number M of the second touch sub-lines TL2 located in the first area S01 and the number N of the second touch sub-lines TL2 located in the third area S03 may be flexibly set according to actual needs.

[0125] 3 , in some embodiments of the present disclosure, the first touch sub-lines TL1 may be disposed in the second region S02. For example, the touch substrate may include L first touch sub-lines TL1 disposed in the second region S02. L is greater than or equal to 1.

[0126] For example, the second region S02 may include a first sub-region S021 located on a first side (e.g., the left side) of the conductive transition portion SP10 and a second sub-region S022 located on a second side (e.g., the right side) of the conductive transition portion SP10. For example, the first sub-region S021 may be located between the first region S01 and the second sub-region S022. The second sub-region S022 may be located between the first sub-region S021 and the third region S03. A portion of the multiple rows of first sensor patterns SP1 may be sequentially connected to the multiple first touch sub-traces TL1 located in the first sub-region S021, row by row. Another portion of the multiple rows of first sensor patterns may be sequentially connected to the multiple first touch sub-traces TL1 located in the second sub-region S022, row by row. For example, referring to FIG. 3 , the upper multiple rows of first sensor patterns SP1 may be sequentially routed to the right via the multiple first touch sub-traces TL1, while the lower multiple rows of first sensor patterns SP1 may be sequentially routed to the left via the multiple first touch sub-traces TL1.

[0127] It should be noted that, in the embodiment of the present disclosure, the number and order of the multiple rows of first sensor patterns arranged to the left and right sides can be specifically designed as needed, and the embodiment of the present disclosure does not specifically limit this.

[0128] FIG. 9 is a partial schematic plan view of a touch substrate according to an exemplary embodiment of the present disclosure.

[0129] By way of example, referring to Figures 3 and 9 , the first sensor pattern and the first sub-touch trace TL1 can be connected in a row-by-row manner, with the left and right halves of the screen connected in sequence. For example, the first sensor pattern SP1 is connected to the fourth portion TL14 of the first sub-touch trace TL1 via a conductive transition portion SP10 located in the middle region. The fifth portion TL15 of the first sub-touch trace TL1 can selectively be switched to the left or right. For example, the first sensor pattern SP1 in the i-th row can be switched to the left via the fifth portion TL15, while the first sensor pattern SP1 in the i+1-th row can be switched to the right via the fifth portion TL15, where i is greater than or equal to 1. By connecting the left and right halves of the screen in sequence, row by row, the length difference of the first sub-touch traces in the left and right halves of the screen can be reduced, which helps improve the uniformity of the left and right halves and enhances the control effect of the touch substrate.

[0130] FIG10 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0131] For example, in some embodiments of the present disclosure, the touch substrate includes a first conductive layer and a second conductive layer. Referring to FIG. 10 , the main portion SPM of the sensor pattern SP may be located in the first conductive layer, the bridge portion SPD of the sensor pattern may be located in the second conductive layer, and the touch trace TL may be located in the first conductive layer.

[0132] For example, the first sensor pattern SP1 is located in the first conductive layer, the main portion SPM2 of the second sensor pattern SP2 is located in the first conductive layer, the bridge portion SPD2 of the second sensor pattern SP2 is located in the second conductive layer, and the touch trace TL is located in the first conductive layer. Alternatively, the main portion SPM1 of the first sensor pattern SP1 is located in the first conductive layer, the bridge portion SPD1 of the first sensor pattern SP1 is located in the second conductive layer, the second sensor pattern SP2 is located in the first conductive layer, and the touch trace TL is located in the first conductive layer. Alternatively, the main portion SPM1 of the first sensor pattern SP1 is located in the first conductive layer, the bridge portion SPD1 of the first sensor pattern SP1 is located in the second conductive layer. The main portion SPM2 of the second sensor pattern SP2 is located in the first conductive layer, the bridge portion SPD2 of the second sensor pattern SP2 is located in the second conductive layer, and the touch trace TL is located in the first conductive layer.

[0133] The touch control substrate may further include dummy electrode traces DU. The dummy electrode traces DU may be disposed in an area of ​​the touch control trace region where no touch control traces are disposed. The dummy electrode traces DU may be disposed on the same layer as the touch control traces. For example, the dummy electrode traces DU may be located in the first conductive layer.

[0134] The design of dummy electrode traces ensures that the thickness of the film layer in areas without touch traces is roughly the same as that in areas with touch traces in the third direction, which is perpendicular to both the first and second directions. This design helps improve the uniformity of the entire film layer, thereby enhancing the touch consistency of the film layer.

[0135] In some embodiments, connectors SPL are provided between some of the main body portions. These connectors SPL can be located on the same layer as the corresponding main body portions SPM. The connectors SPL and bridge portions SPD can be designed in a mixed manner, allowing the number of rows and columns in the touch wiring area of ​​the touch substrate to be adjusted based on the specific requirements of the touch wiring. This mixed design of connectors SPL and bridge portions SPD can help ensure sufficient space for touch wiring while reducing the number of bridge portions, simplifying the process, and improving the stability of the touch substrate.

[0136] It should be noted that the order of preparing the first conductive layer and the second conductive layer can be reversed. For example, the first conductive layer can be prepared first, followed by the second conductive layer. Alternatively, the second conductive layer can be prepared first, followed by the first conductive layer.

[0137] FIG11 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0138] For example, in some embodiments of the present disclosure, referring to FIG. 11 , a touch substrate may include a first conductive layer and a second conductive layer. The main body portion SPM of the sensor pattern SP may include a first main body portion SPM10 located in the first conductive layer and a second main body portion SPM20 located in the second conductive layer. Accordingly, the bridge portion SPD may be located in either the first conductive layer or the second conductive layer.

[0139] For example, referring to FIG. 2 and FIG. 11 , the main portion SPM1 of the first sensor pattern SP1 is located in the first conductive layer, while the bridge portion SPD1 of the first sensor pattern SP1 is located in the second conductive layer. The main portion SPM2 of the second sensor pattern SP2 is located in the second conductive layer, while the bridge portion SPD2 of the second sensor pattern SP2 is located in the first conductive layer. In other words, the main portion SPM1 of the first sensor pattern SP1 and the main portion SPM2 of the second sensor pattern SP2 can be located in different layers. A connecting bridge design can be used at the intersection of the touch trace TL with the first sensor pattern SP1 or the second sensor pattern SP2. The touch trace TL can be partially located in the first conductive layer and partially located in the second conductive layer.

[0140] For example, the bridge at the intersection of the touch trace and the sensor pattern can be an SPD bridge connecting to the main body of the sensor pattern, or a TLD bridge connecting to the touch trace itself. Designing a bridge at the intersection of the touch trace and the sensor pattern improves routing flexibility.

[0141] For example, the touch control substrate may further include dummy electrode traces DU. The dummy electrode traces DU may be disposed in an area of ​​the touch control trace region where no touch control traces are disposed. The dummy electrode traces DU may be disposed on the same layer as the touch control traces. For example, a portion of the dummy electrode traces DU may be disposed in the first conductive layer, while another portion of the dummy electrode traces DU may be disposed in the second conductive layer.

[0142] The design of dummy electrode traces can ensure that the thickness of the film layer in the area without touch traces is roughly the same as that in the area with touch traces in the third direction. The design of dummy electrode traces helps to improve the uniformity of the entire film layer, thereby improving the touch consistency of the film layer.

[0143] FIG12 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0144] For example, in an embodiment of the present disclosure, referring to FIG. 12 , the sensor pattern SP includes multiple adjacent rows of first sensor patterns SP1, with at least a portion of the multiple adjacent rows of first sensor patterns sharing a first sub-touch trace TL1. For example, three adjacent rows of first sensor patterns SP1 within the multiple rows of first sensor patterns SP1 may form a group of first sensor patterns. A group of first sensor patterns may share a first sub-touch trace TL1. For example, in some embodiments, where the number of rows of first sensor patterns SP1 is large and the number of pins on the control chip is small, at least a portion of the multiple adjacent rows of first sensor patterns may share a first sub-touch trace TL1, thereby ensuring that each row of first sensor patterns is connected to a pin of the control chip.

[0145] FIG13 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0146] For example, in an embodiment of the present disclosure, referring to FIG. 13 , the sensor pattern SP includes multiple adjacent columns of second sensor patterns SP2, with at least a portion of the multiple adjacent columns of second sensor patterns SP2 sharing a second sub-touch trace TL2. For example, three adjacent columns of second sensor patterns SP2 within the multiple columns of second sensor patterns SP2 may form a group of second sensor patterns. A group of second sensor patterns may share a second sub-touch trace TL2. For example, in some embodiments, where the number of second sensor patterns SP1 columns is large and the number of pins on the control chip is small, at least a portion of the multiple adjacent columns of second sensor patterns may share a second sub-touch trace TL2, thereby ensuring that each column of second sensor patterns is connected to a pin of the control chip.

[0147] By having adjacent rows of first sensor patterns share a single first sub-touch trace, or adjacent columns of second sensor patterns share a single second sub-touch trace, the number of first or second sub-touch traces can be reduced. If the number of touch pins is small, each sensor pattern can be connected to a pin, facilitating overall control of the touch substrate.

[0148] FIG14 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0149] For example, in an embodiment of the present disclosure, referring to FIG14 , multiple rows of touch traces TL are provided within at least one of the multiple rows of first touch trace sub-areas TA1. By providing multiple rows of touch traces TL within a row of the first touch trace sub-areas TA1, the number of touch traces TL can be increased when the number of rows in the first touch trace sub-areas TA1 is relatively small.

[0150] FIG15 is a partial schematic plan view of a touch substrate according to an embodiment of the present disclosure.

[0151] For example, in an embodiment of the present disclosure, referring to FIG15 , multiple columns of touch traces TL are provided within at least one column of the multiple columns of second touch trace sub-areas TA2. By providing multiple columns of touch traces TL within one column of the second touch trace sub-area TA2, the number of touch traces TL can be increased even when the number of columns in the second touch trace sub-area TA2 is relatively small.

[0152] Multiple rows of touch lines can be set in a single-row first sub-touch line area TA1, or multiple columns of touch lines can be set in a single-column second sub-touch line area TA2. This design can increase the number of touch line routing channels, which is conducive to achieving corresponding connections between touch lines and driver chips.

[0153] Optionally, referring to FIG. 1 , an embodiment of the present disclosure further provides a touch display substrate 1000 , which may include the touch substrate 100 described in any one of the above embodiments.

[0154] FIG16 is a schematic structural diagram of a touch display device according to some embodiments of the present disclosure.

[0155] Optionally, embodiments of the present disclosure further provide a touch display device. Referring to FIG. 16 , this touch display device 2000 may include the aforementioned touch substrate 100 or the aforementioned touch display substrate 1000. The touch display device may include, but is not limited to, electronic paper, mobile phones, tablet computers, monitors, laptop computers, digital photo frames, navigation systems, and any other product or component with a display function. It should be understood that this touch display device has the same beneficial effects as the touch substrates provided in the aforementioned embodiments.

[0156] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined in the claims and their equivalents.

Claims

1. A touch substrate, characterized in that: include: a touch layer, the touch layer including sensor patterns, the sensor patterns including first sensor patterns and second sensor patterns, the first sensor patterns extending along a first direction and spaced apart along a second direction, the second sensor patterns extending along the second direction and spaced apart along the first direction, the first direction and the second direction intersecting; the first sensor patterns and the second sensor patterns being insulated from each other; At least one of the first sensor pattern and the second sensor pattern includes a main body portion and a bridge portion, wherein a touch wiring area is provided between at least some adjacent main bodies, and the main bodies located on both sides of the touch wiring area are connected by the bridge portion; The touch substrate further includes a touch line and a lead line, wherein one end of the touch line is connected to the sensor pattern; the other end of the touch line is connected to the lead line. Wherein, at least part of the touch wiring is arranged in the touch wiring area; The orthographic projection of the touch trace on the plane where the sensor pattern is located does not overlap with the orthographic projection of the main body on the plane where the sensor pattern is located.

2. The touch substrate according to claim 2, wherein: The touch routing area includes multiple rows of first sub-touch routing areas extending along a first direction and multiple columns of second sub-touch routing areas extending along a second direction, wherein the first direction is the row direction and the second direction is the column direction, and the multiple rows of the first sub-touch routing areas and the multiple columns of the second sub-touch routing areas intersect with each other to form a grid-shaped touch routing area.

3. The touch substrate according to claim 1 or 2, wherein: The touch substrate includes a first side region and a second side region that are opposite to each other, and the first side region and the second side region both extend along a first direction; The first ends of the plurality of columns of the second sensor patterns are arranged in the first side area, and the lead lines are arranged in the second side area; The touch routing includes multiple second sub-touch routings, wherein one end of the multiple second sub-touch routings is respectively connected to the first end of multiple columns of the second sensor patterns; and the other end of the multiple second sub-touch routings is respectively connected to the multiple lead lines.

4. The touch substrate according to claim 3, wherein: The second sub-touch trace includes a first portion, a second portion, and a third portion, wherein the second portion is located between the first portion and the third portion. The second portion extends along a second direction, and the second portion is disposed in the second sub-touch wiring area.

5. The touch substrate according to claim 4, wherein: The first portion includes a first sub-portion located in the first sub-touch wiring area and a second sub-portion located in the second sub-touch wiring area, and the first sub-portion and the second sub-portion are arranged in a zigzag pattern.

6. The touch substrate according to claim 4 or 5, wherein: The third portion includes a third sub-portion located in the first sub-touch wiring area and a fourth sub-portion located in the second sub-touch wiring area, and the third sub-portion and the fourth sub-portion are arranged in an L-shaped pattern.

7. The touch substrate according to any one of claims 3 to 6, wherein: The touch wiring further includes a plurality of first sub-touch wirings, and the plurality of first sub-touch wirings are respectively connected to a plurality of rows of the first sensor patterns. The first sensor pattern includes a conductive transition portion located in the middle area of ​​the first sensor pattern, one end of the first sub-touch trace is connected to the conductive transition portion, and the other end of the first sub-touch trace is connected to the lead line located in the second side area.

8. The touch substrate according to claim 7, wherein: The first sub-touch trace includes a fourth portion, a fifth portion, and a sixth portion, wherein the fifth portion is located between the fourth portion and the sixth portion. wherein the fourth portion is connected to the first sensor pattern, and the sixth portion is connected to the lead wire; The fourth portion extends along the second direction, the fifth portion extends along the first direction, and the sixth portion extends along the second direction.

9. The touch substrate according to claim 8, wherein: The fourth portion is provided in the second sub-touch wiring area; and / or the fifth portion is provided in the first sub-touch wiring area; and / or the sixth portion is provided in the second sub-touch wiring area.

10. The touch control substrate according to any one of claims 7 to 9, wherein: The touch substrate includes a first area, a second area, and a third area sequentially arranged along a first direction, wherein: The second sub-touch trace is disposed in the first area or the third area; The first sub-touch wiring is disposed in the second area. The touch substrate according to claim 10 , wherein: The touch substrate includes N second sub-touch traces disposed in the first area and M second sub-touch traces disposed in the third area, wherein M is greater than or equal to 1, N is greater than or equal to 1, and M is equal to N; or M is not equal to N.

12. The touch substrate according to claim 10, wherein: The touch substrate includes L first sub-touch traces arranged in the second area, wherein L is greater than or equal to 1; The second region includes a first sub-region located on a first side of the conductive transition portion and a second sub-region located on a second side of the conductive transition portion, wherein: A portion of the multiple rows of first sensor patterns are sequentially connected to the multiple first sub-touch traces located in the first sub-region row by row; and another portion of the multiple rows of first sensor patterns are sequentially connected to the multiple first sub-touch traces located in the second sub-region row by row.

13. The touch substrate according to any one of claims 1 to 12, wherein: The touch control substrate includes a first conductive layer and a second conductive layer, wherein the main body of the sensor pattern is located in the first conductive layer, and the bridge portion of the sensor pattern is located in the second conductive layer.

14. The touch substrate according to any one of claims 1 to 12, wherein: The touch control substrate includes a first conductive layer and a second conductive layer, wherein the main body of the sensor pattern includes a first main body located in the first conductive layer and a second main body located in the second conductive layer; The bridge portion is located in the first conductive layer; or, the bridge portion is located in the second conductive layer.

15. The touch substrate according to claim 13 or 14, wherein: The touch control trace is located in the first conductive layer; and / or, A portion of the touch trace is located in the first conductive layer, and another portion of the touch trace is located in the second conductive layer.

16. The touch substrate according to any one of claims 13 to 15, wherein: The touch substrate further includes dummy electrode traces, the dummy electrode traces being arranged in an area of ​​the touch trace region where no touch traces are arranged, wherein the dummy electrode traces are located in the first conductive layer; and / or, A portion of the dummy electrode trace is located in the first conductive layer, and another portion of the dummy electrode trace is located in the second conductive layer.

17. The touch substrate according to any one of claims 7 to 16, wherein: The sensor pattern includes a plurality of adjacent rows of first sensor patterns, and at least a portion of the plurality of adjacent rows of first sensor patterns share a first sub-touch wiring.

18. The touch substrate according to any one of claims 3 to 17, wherein: The sensor pattern includes a plurality of adjacent columns of second sensor patterns, and at least a portion of the plurality of adjacent columns of second sensor patterns share a second sub-touch wiring.

19. The touch substrate according to any one of claims 2 to 18, wherein: At least one of the plurality of first touch wiring sub-areas has a plurality of touch wiring rows; and / or, At least one column of the plurality of columns of second touch wiring sub-areas is provided with a plurality of columns of touch wiring.

20. A touch display substrate, characterized in that: The touch display substrate includes the touch substrate according to any one of claims 1 to 19.

21. The touch display substrate according to claim 20, wherein: The touch display substrate includes a display area, and at least one touch trace is located in the display area.

22. The touch display substrate according to claim 20 or 21, wherein: The touch display substrate further includes a base substrate and an encapsulation layer. The touch layer is located on a side of the encapsulation layer away from the base substrate.

23. A touch display device, characterized in that: The touch display device comprises the touch display substrate according to any one of claims 20 to 22.

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