Display substrate and display apparatus
By setting up a multi-layer conductive structure and touch line group on the substrate of the display substrate, and optimizing the layout of touch lines and common signal lines in the side area, the problem of thicker thickness of the existing electromagnetic touch technology module is solved, and high-precision touch detection and thinner design are achieved.
Patent Information
- Application Number
- PCT/CN2024/075231
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-15
- Filing Date
- 2024-02-01
- Publication Date
- 2025-06-12
AI Technical Summary
The existing electromagnetic touch technology has a thicker thickness due to the external touch coil occupying extra space, making it impossible to achieve thinner shapes.
A display substrate is designed, by providing a second transparent electrode layer, a first conductive layer and a second conductive layer on the substrate substrate, and arranging the first touch line group and the second touch line group therein, the first touch line and the third common signal line are arranged in the same or different layers in the side area to avoid shorting and crosstalk.
It realizes the integration of touch electromagnetic coils in the display module, expands the touch detection range, improves the edge touch detection accuracy of display area, and avoids trace collisions and crosstalk, which weakens the impact on display effect.
Smart Images

Figure CN2024075231_12062025_PF_FP_ABST
Abstract
Description
Display substrate and display device
[0001] This disclosure claims priority to PCT application No. PCT / CN2023 / 119009, filed on September 15, 2023, which is hereby incorporated herein in its entirety. Technical Field
[0002] The present disclosure relates to the field of display technology, and in particular to a display substrate and a display device. Background Art
[0003] With the development of remote work and distance education, the market demand for conference or educational tablets that integrate writing, display, collaboration, and other functions continues to increase. Currently, products used in such business and distance education scenarios can use electromagnetic touch technology (EMR technology) to enhance the writing experience.
[0004] Compared to traditional capacitive touch technology, electromagnetic touch technology offers higher positioning accuracy. When paired with an active or passive pen, it can achieve highly precise handwriting control and multi-level pressure sensitivity. However, current electromagnetic touch technology uses an external touch coil, which typically requires additional space, making the module thicker and preventing thinning.
[0005] Summary of the Invention
[0006] In view of the above problems, the present disclosure provides a display substrate and a display device.
[0007] According to a first aspect of the present disclosure, a display substrate is provided, comprising a display area and a peripheral area at least partially surrounding the display area, the peripheral area comprising: a binding area and a pair of binding areas arranged opposite to each other along a first direction, and two side areas arranged opposite to each other along a second direction, wherein the first direction and the second direction intersect. The display substrate further comprises:
[0008] substrate;
[0009] a second transparent electrode layer disposed on the base substrate;
[0010] A first conductive layer and a second conductive layer are provided on the base substrate, wherein the first conductive layer and the second conductive layer are located between the base substrate and the second transparent electrode layer;
[0011] A sub-pixel disposed on the base substrate and located in the display area, the sub-pixel comprising a second electrode located in the second transparent electrode layer;
[0012] a third common signal line disposed on the base substrate and located in the peripheral area;
[0013] M first touch line groups and N second touch line groups are provided on the base substrate, the M first touch line groups are arranged along the second direction, and the N second touch line groups are arranged along the first direction; wherein the first touch line group includes at least one first touch line, which is arranged in parallel with the first touch line in the first touch line group, and the second touch line group includes at least one second touch line, which is arranged in parallel with the second touch line in the second touch line group, the first touch line is located in the first conductive layer, the second touch line is located in the second conductive layer, and the first touch line and the second touch line are arranged insulated from each other;
[0014] Among them, in the outermost one of the M first touch line groups, a portion of the first touch lines is located in the display area, and another portion of the first touch lines is located in the side area, and the first touch lines and the third common signal line are configured to adopt one of the following settings:
[0015] The first touch line and the third common signal line are located in the side area in the same layer and are spaced apart;
[0016] The first touch line and the third common signal line are arranged in different layers in the side area;
[0017] Both M and N are positive integers.
[0018] According to an embodiment of the present disclosure, the first touch line and the third common signal line are disposed in the same layer as the portion located in the side area;
[0019] The orthographic projection of the portion of the third common signal line located in the side area on the base substrate defines a first pattern;
[0020] In the outermost one of the M first touch line groups, the orthographic projection of the first touch line located in the display area on the base substrate defines a second figure, the orthographic projection of the first touch line located in the side area on the base substrate defines a third figure, and the first figure is located between the second figure and the third figure.
[0021] According to an embodiment of the present disclosure, in the outermost one of the M first touch line groups, the first touch lines located in the display area have a first line spacing, and the first touch lines located in the side area have a second line spacing;
[0022] The first wiring spacing is greater than or equal to the second wiring spacing.
[0023] According to an embodiment of the present disclosure, among the M first touch line groups, except for the outermost first touch line group, the first touch lines in other first touch line groups have a third routing pitch;
[0024] The third wiring spacing is equal to the first wiring spacing.
[0025] According to an embodiment of the present disclosure, among the M first touch wire groups, the outermost first touch wire group has the same resistance as the other first touch wire groups.
[0026] According to an embodiment of the present disclosure, the first touch line and the third common signal line are arranged in different layers in the portion of the side area;
[0027] The orthographic projection of the third common signal line on the base substrate defines a first pattern;
[0028] In the outermost one of the M first touch line groups, the orthographic projection of the first touch line located in the display area on the base substrate defines a second figure, and the orthographic projection of the first touch line located in the side area on the base substrate defines a fourth figure, and the first figure overlaps with the fourth figure.
[0029] According to an embodiment of the present disclosure, the two side regions include a first side region and a second side region, and the display substrate further includes: a first common signal line and a second common signal line provided on the base substrate and located in the peripheral region, and a touch binding terminal provided on the base substrate and located in the binding region;
[0030] The first common signal line and the second common signal line are insulated and spaced apart, and the first common signal line and the second common signal line are respectively connected to the touch binding end;
[0031] In the binding pair area, the orthographic projection of the first common signal line on the base substrate is located on a side where the orthographic projection of the second common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate;
[0032] In the side area, the orthographic projection of the second common signal line on the base substrate is located on a side where the orthographic projection of the first common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate;
[0033] The first touch line group is connected to the first common signal line in the binding pair area, and the second touch line group is connected to the second common signal line in the first side area.
[0034] According to an embodiment of the present disclosure, the peripheral area further includes: a plurality of corner areas, at least one of the corner areas being located between the binding pair area and the side area;
[0035] In at least one corner region, the first common signal line includes a first extension portion, a second extension portion, and a first connection portion connected between the first extension portion and the second extension portion, and the second common signal line includes a third extension portion, a fourth extension portion, and a second connection portion connected between the third extension portion and the fourth extension portion;
[0036] The first extension portion and the third extension portion both extend along the second direction and are arranged in the same layer. The second extension portion and the fourth extension portion both extend along the first direction and are arranged in the same layer. The first connecting portion is located in the second transparent electrode layer, which extends along the second direction and crosses the fourth extension portion.
[0037] According to an embodiment of the present disclosure, the display substrate further includes a data line disposed on the base substrate, the second common signal line includes a first sub-line segment located in the first side region, the first sub-line segment and the data line are disposed in the same layer, and the second touch line and the data line are disposed in a different layer;
[0038] An orthographic projection of a portion of the second touch line group located in the first side region on the base substrate overlaps with an orthographic projection of the first sub-line segment on the base substrate, and in the overlapping region, the second touch line group is connected to the first sub-line segment via a second adapter structure;
[0039] The second transfer structure is located in the second transparent electrode layer, and the second transfer structures connected to different second touch line groups are arranged at intervals, or the second transfer structures connected to different second touch line groups form an integrated structure.
[0040] According to an embodiment of the present disclosure, the display substrate further includes a data line disposed on the base substrate, the second common signal line includes a first sub-line segment located in the first side region, the first sub-line segment and the data line are disposed in the same layer, and the second touch line and the data line are disposed in a different layer;
[0041] The orthographic projection of the portion of the second touch line group located in the first side area on the base substrate does not overlap with the orthographic projection of the first sub-line segment on the base substrate, and multiple second touch line groups are connected to the first sub-line segment through the same third adapter structure.
[0042] According to an embodiment of the present disclosure, in the second direction, a distance between the second touch line group and the second common signal line is less than or equal to 3500 μm.
[0043] According to an embodiment of the present disclosure, the display substrate further includes:
[0044] Data lines and gate lines are provided on the base substrate;
[0045] a shift register unit disposed on the base substrate and located in the side area, wherein the orthographic projection of the shift register unit on the base substrate is located on a side of the orthographic projection of the second common signal line on the base substrate away from the orthographic projection of the display area on the base substrate;
[0046] A first signal line is arranged on the base substrate and connected to the shift register unit, the first signal line is arranged on the same layer as at least one of the data line and the gate line, and the orthographic projection of the first signal line on the base substrate is located on a side of the orthographic projection of the shift register unit on the base substrate that is away from the orthographic projection of the second common signal line on the base substrate.
[0047] According to an embodiment of the present disclosure, the display substrate further includes:
[0048] Data lines and gate lines are provided on the base substrate;
[0049] a shift register unit disposed on the base substrate and located in the side area, wherein an orthographic projection of the shift register unit on the base substrate is located on a side of an orthographic projection of the second common signal line on the base substrate close to an orthographic projection of the display area on the base substrate;
[0050] The second touch lines are arranged in different layers from the data lines and the gate lines, and an orthographic projection of at least one of the second touch lines on the base substrate overlaps with an orthographic projection of the shift register unit on the base substrate.
[0051] According to an embodiment of the present disclosure, an orthographic projection of the first touch line on the base substrate does not overlap with an orthographic projection of the shift register unit on the base substrate.
[0052] According to an embodiment of the present disclosure, the display substrate further includes:
[0053] Data lines and gate lines are provided on the base substrate;
[0054] a shift register unit disposed on the base substrate and located in the side area, wherein an orthographic projection of the shift register unit on the base substrate is located on a side of an orthographic projection of the second common signal line on the base substrate close to an orthographic projection of the display area on the base substrate;
[0055] The first touch line and the second touch line are both arranged in different layers from the data line and the gate line;
[0056] The orthographic projection of at least one of the second touch lines on the base substrate overlaps with the orthographic projection of the shift register unit on the base substrate, and the orthographic projection of at least one of the first touch lines on the base substrate overlaps with the orthographic projection of the shift register unit on the base substrate.
[0057] According to an embodiment of the present disclosure, the display substrate includes:
[0058] a plurality of shift register units disposed on the base substrate and located in the side area, wherein the orthographic projections of the shift register units on the base substrate are located on a side of the orthographic projection of the second common signal line on the base substrate close to the orthographic projection of the display area on the base substrate;
[0059] The plurality of shift register units are arranged along the first direction, a first gap is defined between two adjacent shift register units, and an orthographic projection of at least one second touch line on the base substrate passes through an orthographic projection of the first gap on the base substrate.
[0060] According to an embodiment of the present disclosure, the orthographic projections of the M first touch wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal line on the base substrate at least partially surround the seventh figure;
[0061] The orthographic projections of the N second touch line groups on the base substrate define an eighth pattern, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth pattern;
[0062] The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate, and the orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on the side of the orthographic projection of the third common signal line on the base substrate that is away from the orthographic projection of the display area on the base substrate.
[0063] According to an embodiment of the present disclosure, the orthographic projections of the M first touch wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal line on the base substrate at least partially surround the seventh figure;
[0064] The orthographic projections of the N second touch line groups on the base substrate define an eighth pattern, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth pattern;
[0065] The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate, and the orthographic projection of either the first common signal line or the second common signal line on the base substrate is located on a side of the orthographic projection of the third common signal line on the base substrate close to the orthographic projection of the display area on the base substrate.
[0066] According to an embodiment of the present disclosure, the orthographic projections of the M first touch wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal line on the base substrate at least partially surround the seventh figure;
[0067] The orthographic projections of the N second touch line groups on the base substrate define an eighth pattern, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth pattern;
[0068] The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate;
[0069] In at least one of the binding area and the pair binding area, an orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side of the orthographic projection of the third common signal line on the base substrate that is away from an orthographic projection of the display area on the base substrate;
[0070] In the side area, the orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side where the orthographic projection of the third common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate.
[0071] According to an embodiment of the present disclosure, the orthographic projections of the M first touch wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal line on the base substrate at least partially surround the seventh figure;
[0072] The orthographic projections of the N second touch line groups on the base substrate define an eighth pattern, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth pattern;
[0073] The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate;
[0074] In at least one of the binding area and the pair binding area, an orthographic projection of either the first common signal line or the second common signal line on the base substrate is located on a side of an orthographic projection of the third common signal line on the base substrate that is close to an orthographic projection of the display area on the base substrate;
[0075] In the side area, the orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side where the orthographic projection of the third common signal line on the base substrate is away from the orthographic projection of the display area on the base substrate.
[0076] According to an embodiment of the present disclosure, the display substrate further includes:
[0077] A gate line provided on the substrate;
[0078] A common electrode line provided on the base substrate and located in the display area, wherein the common electrode line is connected to the second electrode in the sub-pixel;
[0079] The third common signal line includes a fifth line segment located in the binding pair area, the fifth line segment is connected to the common electrode line via a sixth transfer structure, and the sixth transfer structure is located in the second transparent electrode layer;
[0080] The first common signal line includes a first line segment located in the binding pair area, the first line segment and the gate line are arranged in the same layer, and the first touch line and the gate line are arranged in a different layer;
[0081] In which, a first opening is provided on the sixth adapter structure, and the orthographic projection of the portion of the first touch line group located in the binding pair area on the base substrate overlaps with the orthographic projection of the first line segment on the base substrate, and, in the overlapping area, the first touch line group and the first line segment are connected through a first adapter structure, the first adapter structure is located in the second transparent electrode layer, and the orthographic projection of the first adapter structure on the base substrate is located within the orthographic projection of the first opening on the base substrate.
[0082] According to an embodiment of the present disclosure, the display substrate further includes:
[0083] The display substrate further includes data lines and gate lines arranged on the base substrate;
[0084] The first common signal line includes a first line segment located in the binding pair area, the first line segment is arranged in the same layer as the first touch line, and is arranged in a different layer from the data line and the gate line;
[0085] In the binding pair area, the first touch wire group is directly connected to the first line segment.
[0086] According to an embodiment of the present disclosure, the peripheral area further includes a lead area located between the display area and the binding area, and the display substrate further includes a data line, a second display common signal line, and a first touch lead provided on the base substrate;
[0087] The third common signal line includes a seventh line segment located in the lead area, the seventh line segment and the second display common signal line extending in substantially the same direction, the orthographic projection of the seventh line segment on the base substrate being located on a side of the orthographic projection of the second display common signal line on the base substrate closer to the display area, the seventh line segment being connected to the second display common signal line via a seventh adapter structure, and the seventh adapter structure being located in the second transparent electrode layer;
[0088] In the lead area, the first touch line is connected to the touch binding end through a first touch lead, the first touch line and the data line are arranged in the same layer, and the first touch lead and the data line are arranged in different layers;
[0089] In which, a second opening is provided on the seventh transfer structure, the first touch line is connected to the first touch lead through a fourth transfer structure, the fourth transfer structure is located in the second transparent electrode layer, and the orthographic projection of the fourth transfer structure on the base substrate is located within the orthographic projection of the second opening on the base substrate.
[0090] According to an embodiment of the present disclosure, the display substrate includes a plurality of data lines, and an orthographic projection of at least one of the data lines on the base substrate is located between orthographic projections of two adjacent second openings on the base substrate.
[0091] According to an embodiment of the present disclosure, the display substrate further includes a display binding terminal provided in the binding area and a data lead connected between each data line and the display binding terminal;
[0092] The orthographic projection of the connection area between the data line and the data lead on the base substrate defines a ninth figure, and the orthographic projection of the seventh line segment on the base substrate defines a tenth figure;
[0093] The ninth figure is located on a side of the tenth figure that is away from the positive projection of the display area.
[0094] According to an embodiment of the present disclosure, the first common signal line includes an eighth line segment and a ninth line segment located in the lead area, the eighth line segment extends from the first side area toward the touch binding end, and the ninth line segment extends from the second side area toward the touch binding end;
[0095] The second common signal line includes a tenth line segment and an eleventh line segment located in the lead area, the tenth line segment extends from the first side area toward the touch binding end, and the eleventh line segment extends from the second side area toward the touch binding end;
[0096] The orthographic projections of the eighth line segment, the ninth line segment, the tenth line segment, and the eleventh line segment on the base substrate are located on a side of the ninth graphic away from the display area.
[0097] According to an embodiment of the present disclosure, the tenth line segment includes a second sub-line segment, a third sub-line segment, and a bent sub-line segment connected between the second sub-line segment and the third sub-line segment, and the second sub-line segment and the third sub-line segment both extend along the second direction;
[0098] The orthographic projection of at least one of the eighth line segment and the ninth line segment on the base substrate is located between the orthographic projection of the second sub-line segment on the base substrate and the orthographic projection of the third sub-line segment on the base substrate.
[0099] According to a second aspect of the present disclosure, a display device is provided, comprising the above-mentioned display substrate. BRIEF DESCRIPTION OF THE DRAWINGS
[0100] 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:
[0101] FIG1 schematically shows a schematic diagram of a first touch line group in an example;
[0102] FIG2 schematically shows a schematic diagram of a second touch line group in an example;
[0103] FIG3 schematically shows a schematic diagram of a third common signal line in an example;
[0104] FIG4 schematically shows a plan view of a display substrate according to an embodiment of the present disclosure;
[0105] FIG5 schematically shows a plan view of a first touch line, a first common signal line, a first touch lead, and a touch binding terminal according to an embodiment of the present disclosure;
[0106] FIG6 schematically shows a plan view of a second touch line, a second common signal line, a second touch lead, and a touch binding terminal according to an embodiment of the present disclosure;
[0107] FIG7 schematically shows one of the schematic diagrams of a stacked structure of a display substrate according to an embodiment of the present disclosure;
[0108] FIG8 schematically shows one of the schematic diagrams of the third common signal line according to an embodiment of the present disclosure;
[0109] FIG9 schematically shows a schematic diagram of a touch binding terminal according to an embodiment of the present disclosure;
[0110] FIG10 schematically shows a schematic diagram of a second side region according to an embodiment of the present disclosure;
[0111] FIG11A schematically shows one of the schematic diagrams of the positional relationship between the outermost first touch wire group and the third common signal line according to an embodiment of the present disclosure;
[0112] FIG11B schematically shows a second schematic diagram of the positional relationship between the outermost first touch wire group and the third common signal line according to an embodiment of the present disclosure;
[0113] FIG11C schematically shows a third schematic diagram of the positional relationship between the outermost first touch wire group and the third common signal line according to an embodiment of the present disclosure;
[0114] FIG12 schematically shows a second schematic diagram of a stacked structure of a display substrate according to an embodiment of the present disclosure;
[0115] 13A and 13B schematically illustrate a third schematic diagram of a display substrate stacking structure according to an embodiment of the present disclosure;
[0116] FIG14 schematically shows a schematic diagram of the connection between the third common signal line and the connection line according to an embodiment of the present disclosure;
[0117] FIG15 schematically shows a schematic diagram of one of the corner areas according to an embodiment of the present disclosure;
[0118] FIG16 schematically shows a schematic diagram of a first side region according to an embodiment of the present disclosure;
[0119] FIG17A schematically shows one of the schematic diagrams of connecting the second touch wire group and the second common signal line according to an embodiment of the present disclosure;
[0120] FIG17B schematically shows a second schematic diagram of the connection between the second touch wire group and the second common signal line according to an embodiment of the present disclosure;
[0121] FIG18 schematically shows a schematic diagram of a first via hole and a second via hole according to an embodiment of the present disclosure;
[0122] FIG19 schematically shows one of the schematic diagrams of the positional relationship between the shift register unit and the first common signal line according to an embodiment of the present disclosure;
[0123] FIG20 schematically shows a second schematic diagram of the positional relationship between the shift register unit and the first common signal line according to an embodiment of the present disclosure;
[0124] FIG21 schematically shows a schematic diagram of providing a second common signal line in a first gap according to an embodiment of the present disclosure;
[0125] FIG22 schematically shows a second schematic diagram of a third common signal line according to an embodiment of the present disclosure;
[0126] 23A to 23C schematically illustrate a schematic diagram of connecting a first touch wire group and a first common signal line according to an embodiment of the present disclosure;
[0127] 24A and 24B schematically illustrate a schematic diagram in a lead region according to an embodiment of the present disclosure;
[0128] FIG24C schematically shows a schematic diagram in a connection area according to an embodiment of the present disclosure;
[0129] 25A and 25B schematically illustrate a schematic diagram of connecting a first touch wire and a first touch lead according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0130] 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. 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.
[0131] 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.
[0132] When an element is described as being "on" another element, "connected to" another element, or "bound to" another element, the element may be directly on the other element, directly connected to the other element, or directly bound to the other element, or there may be an intermediate element. However, when an element is described as being "directly on" another element, "directly connected to" another element, or "directly bound to" another element, there is no intermediate element. Other terms and / or expressions used to describe the relationship between elements should be interpreted in a similar manner, for example, "between" versus "directly between", "adjacent" versus "directly adjacent", or "on" versus "directly on", etc. In addition, the term "connected" may refer to a physical connection, an electrical connection, a communication connection, and / or a fluid connection. In addition, the X-axis, Y-axis, and Z-axis are not limited to the three axes of a rectangular coordinate system, and may be interpreted in a broader sense. For example, the X-axis, Y-axis, and Z-axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purposes of this disclosure, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XY, YZ, and ZZ. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.
[0133] It should be noted that although the terms "first," "second," etc. may be used herein to describe various parts, components, elements, regions, layers, and / or portions, these parts, components, elements, regions, layers, and / or portions should not be limited by these terms. Rather, these terms are used to distinguish one part, component, element, region, layer, and / or portion from another. Thus, for example, the first part, first member, first element, first region, first layer, and / or first portion discussed below may be referred to as a second part, second member, second element, second region, second layer, and / or second portion without departing from the teachings of the present disclosure.
[0134] For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," etc., may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features.
[0135] As used herein, the terms "substantially," "about," "approximately," "roughly," and other similar terms are used as terms of approximation rather than as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art. To account for factors such as process fluctuations, measurement problems, and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), "about" or "approximately" as used herein are inclusive of the stated value and mean within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art. For example, "approximately" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value.
[0136] It should be noted that, in this article, the term "same layer" refers to a layer structure formed by patterning a film layer for forming a specific pattern using the same film-forming process and then 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 formed layer structure may be continuous or discontinuous. Multiple elements, components, structures, and / or parts of the "same layer and the same material" are composed of the same material and are formed through the same patterning process. Generally, multiple elements, components, structures, and / or parts of the "same layer and the same material" have approximately the same thickness.
[0137] 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.
[0138] Currently, electromagnetic touch technology is primarily used in medium- and large-sized screens. The touch electromagnetic coil can be externally mounted on the back side of the display module. For example, a separate circuit board is added to the back side of the display module, on which the touch electromagnetic coil is formed. The touch electromagnetic coil can work with a stylus to achieve touch functionality. The back side of the display module can refer to the backlight side of the display module. Accordingly, the display module also has a display side, which can refer to the light-emitting side of the display module.
[0139] For example, a touch electromagnetic coil can be used with a stylus. The touch electromagnetic coil can sense the horizontal movement of the stylus on the display module and the distance between the stylus and the display module. This can achieve position information detection in three dimensions (horizontal, vertical, and pitch), thereby achieving rich pressure-sensitive touch effects and providing a delicate writing experience. However, the external touch electromagnetic coil requires additional space, making the entire module thicker and unable to achieve thinness.
[0140] In one example, a solution is provided for integrating a touch electromagnetic coil in a display module. This display module may also be referred to as an in-cell display module.
[0141] Figure 1 schematically shows a schematic diagram of a first touch line group in an example, Figure 2 schematically shows a schematic diagram of a second touch line group in an example, and Figure 3 schematically shows a schematic diagram of a third common signal line in an example, the third common signal line is also called a display common signal line.
[0142] With reference to Figures 1 to 3, in this example, the display module 100 includes a display area AA and a peripheral area NA that at least partially surrounds the display area AA. Touch line groups are provided in the display area AA, each of which includes multiple parallel touch lines. For example, the touch line groups include multiple vertically extending first touch line groups 110 and multiple horizontally extending second touch line groups 120. The first touch line groups 110 include multiple parallel first touch lines 111, each of which has a uniform routing arrangement. The second touch line groups 120 include multiple parallel second touch lines 121, each of which has a uniform routing arrangement. Taking the first touch line groups 110 as an example, during touch detection, at least two of the first touch line groups 110 are energized. The energized first touch line groups 110 can form vertical touch electromagnetic coils. Similarly, the second touch line groups 120 can form horizontal touch electromagnetic coils. The touch electromagnetic coil can sense an electromagnetic signal according to a touch object (such as a touch pen), and touch recognition can be achieved by analyzing the electromagnetic signal.
[0143] To improve touch detection accuracy at the edge of the display area AA, in this example, it is desirable to locate the outermost first touch line group 110 in both the display area AA and the peripheral area NA, as shown by the first touch line group 110 on the rightmost (or leftmost) side of Figure 1. However, the outermost first touch line group 110 will conflict with the traces originally located in this area.
[0144] Routing conflicts manifest themselves in two specific aspects. First, in the peripheral area NA, a third common signal line 130 is provided surrounding the display area AA. On the left and right sides of the display area AA, the third common signal line 130 is provided on the same layer as the first touch lines 111. This makes it easy for the first touch lines 111 in the outermost first touch line group 110 to short-circuit with the third common signal line 130.
[0145] Secondly, conventional in-cell display modules 100 typically employ a capacitive touch structure. Compared to capacitive touch structures, the touch coil is more sensitive to signal crosstalk. On the one hand, the touch coil is more susceptible to interference from surrounding signal lines, and on the other hand, the touch coil is also more likely to interfere with surrounding signal lines. Therefore, when setting up the outermost first touch line group 110, not only does it have to deal with the problem of shorting the first touch line 111 and the third common signal line 130, but it also has to deal with crosstalk between the first touch line 111 and the third common signal line 130. This crosstalk problem can make it difficult to achieve the desired improvement in touch detection accuracy at the edge of the display area AA, and can even affect the display quality.
[0146] In view of this, an embodiment of the present disclosure provides a display substrate, which includes a display area and a peripheral area at least partially surrounding the display area, the peripheral area including: a binding area and a binding pair area arranged opposite to each other along a first direction, and two side areas arranged opposite to each other along a second direction, the first direction and the second direction intersecting, the display substrate further including: a base substrate; a second transparent electrode layer arranged on the base substrate; a first conductive layer and a second conductive layer arranged on the base substrate, the first conductive layer and the second conductive layer being located between the base substrate and the second transparent electrode layer; a sub-pixel arranged on the base substrate and located in the display area, the sub-pixel including a second electrode located in the second transparent electrode layer; a third common signal line arranged on the base substrate and located in the peripheral area, the third common signal line may also be referred to as a display common signal line; M first touch line groups and N second touch line groups arranged on the base substrate, the M first touch line groups Arranged along the second direction, N second touch line groups are arranged along the first direction; wherein, the first touch line group includes at least one first touch line, and the first touch lines in the same first touch line group are arranged in parallel, the second touch line group includes at least one second touch line, and the second touch lines in the same second touch line group are arranged in parallel, the first touch line is located in the first conductive layer, the second touch line is located in the second conductive layer, and the first touch line and the second touch line are insulated and spaced apart; wherein, in one of the outermost ones of the M first touch line groups, a portion of the first touch lines is located in the display area, and another portion of the first touch lines is located in the side area, and the first touch line and the third common signal line are configured to adopt one of the following settings: the first touch line and the third common signal line are located in the side area in the same layer and spaced apart; the first touch line and the third common signal line are located in the side area in different layers; M and N are both positive integers.
[0147] Through the above approach, in the side area, the outermost first touch line group covers the boundary between the display area and the side area. This expands the sensing range of the touch electromagnetic coil formed by the first touch line group Z1, thereby improving the accuracy of touch detection at the edge of the display area. Furthermore, in the outermost first touch line group, the first touch lines and the third common signal lines are located in the portion of the side area on the same layer and spaced apart (or arranged in different layers). This prevents short circuits between these first touch lines and the third common signal lines, and also prevents crosstalk between these first touch lines and the third common signal lines. This overcomes routing conflicts between these first touch lines and the third common signal lines, thereby achieving the desired improvement in touch detection accuracy at the edge of the display area while also minimizing the impact on the display quality.
[0148] The display substrate according to the embodiment of the present disclosure is described in detail below.
[0149] FIG. 4 schematically shows a plan view of a display substrate according to an embodiment of the present disclosure.
[0150] 4 , the display substrate in the embodiment of the present disclosure includes a display area AA and a peripheral area NA located on at least one side of the display area AA.
[0151] The display area AA can have various shapes. For example, the display area AA can be provided in various shapes, such as a polygon (e.g., a rectangle) with straight edges, a circle or an ellipse with curved edges, or a semicircle or a semiellipse with both straight and curved edges. In the embodiment of the present disclosure, the display area AA is provided as a region having a quadrilateral shape with straight edges. It should be understood that this is merely an exemplary embodiment of the present disclosure and is not intended to limit the present disclosure.
[0152] The display substrate may further include a base substrate 200 and a plurality of pixel units P disposed on the base substrate 200 and located in the display area AA. The plurality of pixel units P may be arranged in an array along a first direction Y and a second direction X. The first direction Y and the second direction X intersect. For example, the first direction Y may be the vertical direction in FIG. 4 , and the second direction X may be the horizontal direction in FIG. 4 , that is, the first direction Y and the second direction X are perpendicular to each other.
[0153] Each pixel unit P may include a plurality of sub-pixels PX. For example, the pixel unit P may include a first sub-pixel, a second sub-pixel, and a third sub-pixel. For example, the first sub-pixel, the second sub-pixel, and the third sub-pixel may be set as a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively. However, the embodiments of the present disclosure are not limited thereto.
[0154] 4 , a plurality of sub-pixels PX may be arranged in an array along a first direction Y and a second direction X. However, the embodiments of the present disclosure are not limited thereto. For ease of description, the embodiments of the present disclosure refer to the plurality of sub-pixels PX arranged along the first direction Y as a column of sub-pixels PX, and the plurality of sub-pixels PX arranged along the second direction X as a row of sub-pixels PX.
[0155] The display substrate further includes a plurality of gate lines GL and a plurality of data lines DL disposed on the base substrate 200 and located at least in the display area AA. The plurality of data lines DL extend along a first direction Y, and the plurality of gate lines GL extend along a second direction X. Exemplarily, one sub-pixel PX is connected to one data line DL and one gate line GL, sub-pixels PX in the same row are connected to the same gate line GL, sub-pixels PX in different rows are connected to different gate lines GL, sub-pixels PX in the same column are connected to the same data line DL, and sub-pixels PX in different columns are connected to different data lines DL.
[0156] The peripheral area NA may be disposed on at least one side of the display area AA. For example, the peripheral area NA may surround the periphery of the display area AA. In an embodiment of the present disclosure, the peripheral area NA may include a vertical portion extending in the first direction Y and a horizontal portion extending in the second direction X.
[0157] The display substrate may further include a gate drive circuit 21 and a display binding terminal PAD1 that are arranged on the base substrate 200 and located in the peripheral area NA. For example, the gate drive circuit 21 may be located on at least one side of the display area AA. In the embodiment shown in Figure 4, the gate drive circuit 21 is respectively located on the left and right sides of the display area AA. It should be noted that the left and right sides may be the left and right sides of the display substrate (screen) viewed by the human eye during display. For example, the display binding terminal PAD1 may be located on at least one side of the display area AA. In the embodiment shown in Figure 4, the display binding terminal PAD1 is located on the lower side of the display area AA. It should be noted that the lower side may be the lower side of the display substrate (screen) viewed by the human eye during display.
[0158] The display binding terminal PAD1 is used to be electrically connected to the display driver chip (not shown in the figure). For example, the display binding terminal PAD1 and the display driver chip can be directly connected by binding or the like. Alternatively, the display binding terminal PAD1 and the display driver chip can be switched via a device such as a flexible circuit board. The display driver chip includes a data driver circuit, which is used to latch the input data sequence according to the clock signal and convert the latched data into an analog signal and then input it to each data line DL of the display substrate. The gate driver circuit 21 is usually implemented by a shift register unit, which converts the clock signal into an on / off voltage and outputs it to each gate line GL of the display substrate.
[0159] It should be noted that although Figure 1 shows that the gate driving circuit 21 is located on the left and right sides of the display area AA and the display binding terminal PAD1 is located on the lower side of the display area AA, the embodiments of the present disclosure are not limited to this. The gate driving circuit 21 and the display binding terminal PAD1 can be located at any suitable position in the peripheral area NA.
[0160] For example, the gate driver circuit 21 can utilize GOA technology, also known as Gate Driver on Array (GOA). In GOA technology, the gate driver circuit 21 is directly disposed on the array substrate, replacing an external chip. Each GOA unit serves as a shift register unit, and each shift register unit is connected to a gate line GL. Each level of shift register units sequentially outputs scan signals in turn, achieving progressive scanning of the sub-pixels PX. In some embodiments, each level of shift register unit can also be connected to multiple gate lines GL. This can adapt to the development trend of high-resolution and narrow-frame display substrates.
[0161] Figure 5 schematically shows a plan view of the first touch line, the first common signal line, the first touch lead and the touch binding end according to an embodiment of the present disclosure, and Figure 6 schematically shows a plan view of the second touch line, the second common signal line, the second touch lead and the touch binding end according to an embodiment of the present disclosure.
[0162] With reference to Figures 4 to 6 , in the embodiment of the present disclosure, the peripheral area NA includes a bonding area Q1 and a bonding area Q2, which are arranged opposite each other along a first direction Y. The bonding area Q2 is provided with a display bonding terminal PAD1. In addition, the bonding area Q2 is also provided with a touch bonding terminal PAD2. The peripheral area NA also includes two side areas arranged opposite each other along a second direction X. For example, the peripheral area NA includes a first side area Q31 located to the left of the display area AA and a second side area Q32 located to the right of the display area AA.
[0163] The touch binding terminal PAD2 can electrically connect the signal line for realizing the touch function on the display substrate to the touch detection chip (not shown in the figure). The touch detection chip can be set at any suitable position on the display substrate. For example, the touch detection chip can be set on the back side of the display substrate. The signal lines for realizing the touch function include the first common signal line 211, the second common signal line 212, the first touch line 221 and the second touch line 222 mentioned below. Among them, the back side of the display substrate can refer to the backlight side of the display substrate. Correspondingly, the display substrate also has a display side, and the display side can refer to the light-emitting side of the display substrate.
[0164] Optionally, the number of the display binding terminals PAD1 may be multiple, for example, there are two display binding terminals PAD1 , and in the second direction X, the touch binding terminal PAD2 is located between the two display binding terminals PAD1 .
[0165] The display substrate further includes: a first common signal line 211 and a second common signal line 212 provided on the base substrate 200 . The first common signal line 211 and the second common signal line 212 are both located in the peripheral area NA.
[0166] The first common signal line 211 can be arranged to at least partially surround the display area AA. For example, referring to Figure 5, the first common signal line 211 at least surrounds the upper, left, and right sides of the display area AA, and is connected to the touch binding terminal PAD2 at the bottom of the display area AA. For another example, the first common signal line 211 completely surrounds the display area AA. In other words, the first common signal line 211 continuously surrounds the four sides of the display area AA and is connected to the touch binding terminal PAD2 at the bottom of the display area AA. The second common signal line 212 can be arranged to at least partially surround the display area AA. For example, referring to Figure 6, the second common signal line 212 at least surrounds the upper, left, and right sides of the display area AA, and is connected to the touch binding terminal PAD2 at the bottom of the display area AA. For another example, the second common signal line 212 completely surrounds the display area AA. In other words, the second common signal line 212 continuously surrounds the four sides of the display area AA and is connected to the touch binding terminal PAD2 at the bottom of the display area AA.
[0167] FIG7 schematically shows one of the schematic diagrams of the stacked structure of the display substrate according to an embodiment of the present disclosure, and FIG8 schematically shows one of the schematic diagrams of the third common signal line according to an embodiment of the present disclosure.
[0168] With reference to Figures 7 and 8 , the display substrate further includes: a second transparent electrode layer DJ, a first conductive layer DD1, a second conductive layer DD2, a third common signal line 213, M first touch line groups Z1, and N second touch line groups Z2, disposed on a base substrate 200. The third common signal line 213 may also be referred to as a display common signal line, where M and N are both positive integers. The first conductive layer DD1 and the second conductive layer DD2 are located between the second transparent electrode layer DJ and the base substrate 200, and the third common signal line 213 is located in the peripheral area NA.
[0169] In an embodiment of the present disclosure, the subpixel PX includes a second electrode located in the second transparent electrode layer DJ. For example, the display substrate in the embodiment of the present disclosure can be applied to a liquid crystal display panel, and the second electrode can be a common electrode. Accordingly, the subpixel also includes a first electrode, and the first electrode can be a pixel electrode. The first electrode can be provided in one of the conductive film layers between the second transparent electrode layer DJ and the base substrate 200. For example, the display substrate also includes a first transparent electrode layer provided between the second transparent electrode layer DJ and the base substrate 200, and the first electrode is located in the first transparent electrode layer. The materials of the second transparent electrode layer DJ and the first transparent electrode layer may include transparent conductive materials, for example, both include indium tin oxide (ITO).
[0170] Exemplarily, the liquid crystal display panel includes a liquid crystal layer arranged on the side of the second transparent electrode layer DJ facing away from the base substrate 200. The second electrode and the first electrode can apply a first electric field in response to a driving signal, and the liquid crystal molecules in the liquid crystal layer can be deflected under the drive of the first electric field, thereby realizing the display function.
[0171] With reference to Figures 5 and 6 , the first touch line group Z1 includes at least one first touch line 221, and the second touch line group Z2 includes at least one second touch line 222. The first touch line 221 is located in the first conductive layer DD1, and the second touch line 222 is located in the second conductive layer DD2. The first touch line group Z1 and the second touch line group Z2 are used to form vertically extending and horizontally extending touch electromagnetic coils, respectively. The first conductive layer DD1 and the second conductive layer DD2 are located between the base substrate 200 and the second transparent electrode layer DJ. In other words, the touch electromagnetic coils in this embodiment of the disclosure are integrated on the display substrate.
[0172] The M first touch line groups Z1 are arranged along the second direction X, and the N second touch line groups Z2 are arranged along the first direction Y. The first touch lines 221 in the same first touch line group Z1 are arranged in parallel, and the second touch lines 222 in the same second touch line group Z2 are arranged in parallel. The first touch lines 221 and the second touch lines 222 are arranged in an insulated manner. The first touch lines 221 extend along the first direction Y, and the second touch lines 222 extend along the second direction X.
[0173] Exemplarily, the display substrate further includes at least one insulating layer located between the first conductive layer DD1 and the second conductive layer DD2. The insulating layer insulates and separates the first touch line 221 from the second touch line 222. The insulating layer will be described in detail below and is not described here.
[0174] Optionally, in addition to being located within the display area AA, the first touch lines 221 may also extend along the first direction Y to the periphery of the display area AA to increase the touch detection area of the first touch line group Z1. In addition to being located within the display area AA, the second touch lines 222 may also extend along the second direction X to the periphery of the display area AA to increase the touch detection area of the second touch line group Z2.
[0175] The first end of the first touch line 221 is electrically connected to the first common signal line 211, and the second end is electrically connected to the touch binding terminal PAD2. For example, the second end of the first touch line 221 is electrically connected to the touch binding terminal PAD2 via the first touch lead 231. The first end of the second touch line 222 is electrically connected to the second common signal line 212, and the second end is electrically connected to the touch binding terminal PAD2. For example, the second end of the second touch line 222 is electrically connected to the touch binding terminal PAD2 via the second touch lead 232.
[0176] 5 , the first and second ends of the first touch line 221 may refer to the upper and lower ends of the first touch line 221. Referring to FIG6 , the first and second ends of the second touch line 222 may refer to the left and right ends of the second touch line 222.
[0177] FIG9 schematically shows a schematic diagram of a touch binding terminal according to an embodiment of the present disclosure.
[0178] 9 , in an embodiment of the present disclosure, the touch binding end PAD2 includes a plurality of sensing terminals F, M first touch line groups Z1 and N second touch line groups Z2 are electrically connected to different sensing terminals F, and different first touch line groups Z1 are electrically connected to different sensing terminals F, and different second touch line groups Z2 are electrically connected to different sensing terminals F.
[0179] For example, the touch binding terminal PAD2 includes multiple first sensing terminals F1, and the first touch lines 221 in the same first touch line group Z1 are electrically connected to the same first sensing terminal F1 via the same first touch lead 231. The touch binding terminal PAD2 includes multiple second sensing terminals F2, and the second touch lines 222 in the same second touch line group Z2 are electrically connected to the same second sensing terminal F2 via the same second touch lead 232.
[0180] In an embodiment of the present disclosure, the touch binding terminal PAD2 can be bound and connected to the first flexible circuit board, and further electrically connected to the touch detection chip through the first flexible circuit board. The touch detection chip can scan the first touch line group Z1 and the second touch line group Z2 to detect the location of the touched object.
[0181] For example, the touch detection chip can selectively connect to the sensing terminal F on the touch binding terminal PAD2 according to a set scanning sequence to scan the first touch wire group Z1 and the second touch wire group Z2.
[0182] For example, the touch detection chip can scan the first touch line group Z1 along the second direction X and scan the second touch line group Z2 along the first direction Y. When scanning the first touch line group Z1, the chip conducts with i first touch line groups Z1 at a time, where i is a positive integer and i ≥ 2. When scanning the second touch line group Z2, the chip conducts with j second touch line groups Z2 at a time, where j is a positive integer and j ≥ 2.
[0183] Taking i=j=2 as an example, when scanning the first touch line group Z1, each time it conducts with two first touch line groups Z1, the two first touch line groups Z1 can form a vertical touch electromagnetic coil (hereinafter referred to as the first touch electromagnetic coil). When scanning the second touch line group Z2, each time it conducts with two second touch line groups Z2, the two second touch line groups Z2 can form a horizontal touch electromagnetic coil (hereinafter referred to as the second touch electromagnetic coil).
[0184] For example, when scanning the first touch line group Z1, each time the first touch line group Z1 and the x+2 first touch line group Z1 are connected, where x = 1, 2, 3, ..., M-4, M-2. This allows for the formation of multiple first touch electromagnetic coils in the second direction X. The first touch electromagnetic coils formed two adjacent times overlap, effectively reducing blind spots in the detection of the first touch electromagnetic coils. When scanning the second touch line group Z2, each time the second touch line group Z2 and the y+2 second touch line group Z2 are connected, where y = 1, 2, 3, ..., N-4, N-2. This allows for the formation of multiple second touch electromagnetic coils in the first direction Y. The second touch electromagnetic coils formed two adjacent times overlap, effectively reducing blind spots in the detection of the second touch electromagnetic coils.
[0185] When a touch object (such as a stylus) touches the display substrate, the touch electromagnetic coil at the corresponding position will sense a corresponding electromagnetic signal, including but not limited to changes in amplitude and frequency. The touch detection chip can determine the position of the touched object by analyzing the electromagnetic signal. For example, the touch detection chip can determine the coordinates of the touched object in the first direction Y by analyzing the electromagnetic signal sensed by the first touch electromagnetic coil, and the coordinates of the touched object in the second direction X by analyzing the electromagnetic signal sensed by the second touch electromagnetic coil. The position of the touched object can then be determined based on these two coordinates.
[0186] It should be noted that the above values for i, j, x, and y are merely illustrative and do not constitute a limitation on the embodiments of the present disclosure. For example, i can also be 4, 6, or so on, as long as a suitable touch electromagnetic coil can be formed. When scanning the first touch line group Z1, the first touch line group Z1 that is connected each time is not limited to the above configuration. For example, the xth first touch line group Z1 and the x+1th first touch line group Z1 can also be connected to the touch detection chip each time. Similarly, when scanning the second touch line group Z2, the second touch line group Z2 that is connected each time is not limited to the above configuration.
[0187] It should also be noted that because the first touch line group Z1 and the second touch line group Z2 are electrically connected to the touch detection chip via different sensing terminals F, the touch detection chip can scan the first touch line group Z1 and the second touch line group Z2 in a time-sharing manner, or can scan the first touch line group Z1 and the second touch line group Z2 simultaneously. When the touch detection chip scans the first touch line group Z1 and the second touch line group Z2 in a time-sharing manner, crosstalk between the first touch line group Z1 and the second touch line group Z2 can be reduced.
[0188] In the above manner, the touch electromagnetic coil for realizing the touch function can be integrated on the display substrate, which is conducive to the lightweight and thinning of the display product.
[0189] In the outermost of the M first touch line groups Z1, a portion of the first touch lines 221 is located in the display area AA, and another portion of the first touch lines 221 is located in the side area. For example, referring to FIG5 , the outermost first touch line group Z1 may be the leftmost and rightmost first touch line groups Z1 among the M first touch line groups Z1.
[0190] The M first touch line groups Z1 are arranged sequentially from the left edge of the display area AA to the right edge of the display area AA, so that the touch detection range of the M first touch line groups Z1 can cover the entire display area AA. Because some of the first touch lines 221 in the outermost first touch line group Z1 are located in the display area AA, and other first touch lines 221 are located in the peripheral area NA, the outermost first touch line group Z1 can cover the boundary between the display area AA and the peripheral area NA, thereby improving touch detection accuracy at the edge of the display area AA.
[0191] The third common signal lines 213 are located in the peripheral area NA and at least partially surround the display area AA. Because the outermost first touch line group Z1 is located at the edge of the display area AA, the outermost first touch line group Z1 is closest to the third common signal lines 213, and crosstalk is most likely to occur between the outermost first touch line group Z1 and the third common signal lines 213. Therefore, in the embodiments of the present disclosure, the first touch lines 221 and the third common signal lines 213 are configured using one of the following configurations:
[0192] The first way is that the first touch line 221 and the third common signal line 213 are located in the same layer in the side area and are spaced apart.
[0193] The second way is that the first touch line 221 and the third common signal line 213 are located in different layers in a part of the side area.
[0194] In this way, the first touch lines 221 in the outermost first touch line group Z1 can be kept at a sufficient distance from the third common signal line 213, thereby preventing the first touch lines 221 and the third common signal line 213 from short-circuiting and crosstalk.
[0195] FIG10 schematically shows a schematic diagram of the second side region according to an embodiment of the present disclosure. FIG11A schematically shows one of the schematic diagrams of the positional relationship between the outermost first touch wire group and the third common signal line according to an embodiment of the present disclosure.
[0196] 10 and 11A , in some specific embodiments, the portion of the third common signal line 213 located in the side area is disposed in the same layer as the first touch line 221 . For example, the portion of the third common signal line 213 located in the side area and the first touch line 221 are both located in the first conductive layer DD1 .
[0197] In one example, the third common signal line 213 is positioned away from the outermost first touch line group Z1. For example, in the second side region Q32, the third common signal line 213 is moved away from the display area AA, away from the area where the outermost first touch line group Z1 is located. This ensures a sufficient minimum spacing between the first touch lines 221 and the third common signal line 213. In this example, the routing of the outermost first touch line group Z1 can remain unchanged, which helps improve touch detection uniformity.
[0198] FIG. 11B schematically shows a second schematic diagram of the positional relationship between the outermost first touch wire group and the third common signal line according to an embodiment of the present disclosure.
[0199] With reference to FIG10 and FIG11B , in another example, the distribution of the first touch lines 221 within the outermost first touch line group Z1 can be adjusted so that the first touch lines 221 avoid the third common signal line 213. For example, the routing spacing of the first touch lines 221 in the side regions can be reduced so that the routing spacing of the first touch lines 221 in the side regions is smaller than the routing spacing of the first touch lines 221 in the AA region. This allows the first touch lines 221 in the side regions to be more closely arranged, thereby increasing the minimum spacing d1 between the first touch lines 221 in these side regions and the third common signal line 213. Alternatively, the first touch lines 221 in the side regions can be moved as a whole toward a side away from the display area AA, thereby also increasing the minimum spacing d1 between the first touch lines 221 in these side regions and the third common signal line 213. In this example, only the first touch line 221 in the side area of the outermost first touch line group Z1 is modified, and the third common signal line 213 and its related wiring are not modified, so the modification range is greatly reduced.
[0200] FIG11C schematically shows a third schematic diagram of the positional relationship between the outermost first touch line group and the third common signal line according to an embodiment of the present disclosure. FIG12 schematically shows a second schematic diagram of the display substrate stacking structure according to an embodiment of the present disclosure.
[0201] With reference to Figures 10, 11C, and 12, in some other embodiments, the portion of the third common signal line 213 located in the side region is disposed in a different layer from the first touch line 221. For example, the third common signal line 213 remains in the original conductive film layer. In this example, the layer containing the portion of the third common signal line 213 located in the side region is referred to as the third conductive layer DD3, and a new conductive film layer is added to the display substrate as the first conductive layer DD1. Furthermore, by providing an insulating layer or other structure between the first conductive layer DD1 and the second conductive layer DD2, the minimum spacing between the first touch line 221 and the third common signal line 213 can be sufficiently increased. In this example, the first touch line group Z1 and the third common signal line 213 have greater routing freedom, and the third common signal line 213 and its related signal lines can remain unchanged, nor can the routing layout of the first touch line group Z1 be modified. Alternatively, the routing spacing of the first touch lines 221 in the display area AA in the first touch line group Z1 is made the same as the routing spacing of the first touch lines 221 in the side area. It should be noted that since the portion of the third common signal line 213 in the side area is provided on a different layer from the first touch lines 221, the portion of the third common signal line 213 in the side area may overlap with the first touch lines 221. The "first touch lines 221 in the side area" herein includes both first touch lines 221 that overlap with the portion of the third common signal line 213 in the side area and first touch lines 221 that do not overlap with the portion of the third common signal line 213 in the side area. In other words, in the first touch line group Z1, regardless of whether the first touch lines 221 overlap with the portion of the third common signal line 213 located in the side area, the first touch lines 221 are evenly spaced apart, and the routing spacing of the first touch lines 221 is the same as the routing spacing of the first touch lines 221 of the first touch line group Z1 located in the display area, which helps to improve routing uniformity.
[0202] Optionally, in this example, the spacing between the first touch lines 221 in the display area AA in the first touch line group Z1 is made the same as the width of the first touch lines 221 in the side area. As previously described, the "first touch lines 221 in the side area" herein include both first touch lines 221 that overlap with the portion of the third common signal line 213 in the side area and first touch lines 221 that do not overlap with the portion of the third common signal line 213 in the side area. In other words, in the first touch line group Z1, regardless of whether a first touch line 221 overlaps with the portion of the third common signal line 213 in the side area, the width of these first touch lines 221 remains the same. This width is the same as the width of the first touch lines 221 in the display area AA of the first touch line group Z1, which helps improve routing uniformity.
[0203] In summary, in the embodiments of the present disclosure, the outermost first touch line group Z1 is located in both the display area AA and the peripheral area NA. This expands the sensing range of the touch electromagnetic coil formed by the first touch line group Z1, thereby improving the touch detection accuracy at the edge of the display area AA. Furthermore, in the outermost first touch line group Z1, the first touch lines 221 and the third common signal lines 213 located in the side areas are arranged on the same layer and spaced apart (or arranged on different layers). This prevents short circuits between the first touch lines 221 and the third common signal lines 213 and prevents crosstalk between the first touch lines 221 and the third common signal lines 213. This overcomes routing conflicts between the first touch lines 221 and the third common signal lines 213, thereby achieving the desired improvement in touch detection accuracy at the edge of the display area AA while also minimizing the impact on the display quality.
[0204] The display substrate of the embodiment of the present disclosure will be further described below with reference to FIG. 4 to FIG. 25B .
[0205] In an embodiment of the present disclosure, the display substrate may include at least three stacked structures.
[0206] 13A and 13B schematically illustrate a third schematic diagram of a display substrate stacking structure according to an embodiment of the present disclosure.
[0207] For example, referring to Figures 13A and 13B , in the first stacked structure, when providing the first touch line 221 and the second touch line 222, existing conductive film layers can be reused to the greatest extent possible. For example, the first touch line 221 is provided on the same layer as the data line DL, and the second touch line 222 is provided on the same layer as the gate line GL. For example, the display substrate includes a second conductive layer DD2, a gate insulating layer JY1, a first conductive layer DD1, a second insulating layer JY2, and a second transparent electrode layer DJ, sequentially arranged in a direction away from the base substrate 200. The first touch line 221 and the data line DL are located in the first conductive layer DD1, while the second touch line 222 and the gate line GL are located in the second conductive layer DD2.
[0208] For example, referring to FIG7 , in the second stacked structure, the second touch line 222 is located solely within a conductive film layer to increase routing flexibility. For example, the display substrate includes a fourth conductive layer DD4, a gate insulating layer JY1, a first conductive layer DD1, a second insulating layer JY2, a second conductive layer DD2, a third insulating layer JY3, and a second transparent electrode layer DJ, arranged in sequence away from the base substrate 200. The gate line GL is located within the fourth conductive layer DD4, the first touch line 221 and the data line DL are located within the first conductive layer DD1, and the second touch line 222 is located within the second conductive layer DD2. In this example, a conductive film layer is added to the side of the layer containing the data line DL away from the base substrate 200, serving as the second conductive layer DD2. The second touch line 222 can be located solely within the second conductive layer DD2.
[0209] For example, referring to FIG. 12 , in the third stacked structure, the first touch line 221 and the second touch line 222 are each located in a separate conductive film layer to further enhance routing flexibility. For example, the display substrate includes a fourth conductive layer DD4, a gate insulating layer JY1, a third conductive layer DD3, a second insulating layer JY2, a second conductive layer DD2, a third insulating layer JY3, a first conductive layer DD1, a first insulating layer JY4, and a second transparent electrode layer DJ, arranged in this order away from the base substrate 200. The gate line GL is located in the fourth conductive layer DD4, the data line DL is located in the third conductive layer DD3, the first touch line 221 is located in the first conductive layer DD1, and the second touch line 222 is located in the second conductive layer DD2. In this example, it is equivalent to adding two conductive film layers as the first conductive layer DD1 and the second conductive layer DD2 on the side of the layer where the data line DL is located away from the base substrate 200. The first touch line 221 can be located solely in the first conductive layer DD1, and the second touch line 222 can be located solely in the second conductive layer DD2.
[0210] For clarity, unless otherwise specified, the following description of the display substrate of the embodiment of the present disclosure uses the second stacked structure as an example. It should be understood that when explaining a structure below, unless otherwise specified, the structure can be applied in the same manner to the first and third stacked structures. It should also be noted that, in this disclosure, unless otherwise specified, the overlap between two structures specifically refers to the overlap between the orthographic projections of the two structures on the base substrate 200.
[0211] 11B , in some embodiments, the first touch line 221 and the portion of the third common signal line 213 located in the side region are disposed in the same layer. The orthographic projection of the portion of the third common signal line 213 located in the side region on the base substrate 200 defines a first pattern. In the outermost one of the M first touch line groups Z1, the orthographic projection of the first touch line 221 located in the display area AA on the base substrate 200 defines a second pattern. The orthographic projection of the first touch line 221 located in the side region on the base substrate 200 defines a third pattern, with the first pattern located between the second and third patterns.
[0212] The third common signal line 213 passes through the center of the outermost first touch line group Z1. Taking the second side region Q32 as an example, in the outermost first touch line group Z1, the first touch line 221 located in the display area AA is located to the left of the third common signal line 213, while the first touch line 221 located in the peripheral area NA is located to the right of the third common signal line 213. Compared to the display area AA, the number of signal lines (such as data lines DL) in the side region that extend in the same direction as the first touch line 221 is significantly reduced. Therefore, the first touch lines 221 in the side region have greater room for adjustment. Therefore, in the embodiments of the present disclosure, the first touch lines 221 in the side region are generally moved away from the display area AA, making room for the third common signal line 213 and thereby maintaining sufficient spacing between the first touch lines 221 and the display common signal line.
[0213] In some specific embodiments, in the outermost of the M first touch line groups Z1, the first touch lines 221 located in the display area AA have a first line spacing h1, and the first touch lines 221 located in the side area have a second line spacing h2. The first line spacing h1 is greater than or equal to the second line spacing h2. "Line spacing" or similar expressions can indicate the density of lines. A larger line spacing indicates looser lines, and a smaller line spacing indicates denser lines.
[0214] In the embodiment of the present disclosure, the routing spacing of the first touch lines 221 in the side region can be reduced, that is, the first routing spacing h1 is made larger than the second routing spacing h2. In this way, the first touch lines 221 in the side region can be arranged more closely, thereby freeing up space for the third common signal lines 213 and thereby maintaining a sufficient distance between the first touch lines 221 and the display common signal. Alternatively, the routing spacing of the first touch lines 221 in the side region can be maintained unchanged, that is, the first routing spacing h1 is equal to the second routing spacing h2. In this way, the first touch lines 221 in the side region are shifted to the right as a whole, thereby also freeing up space for the third common signal lines 213.
[0215] Through the above two methods, only the distribution of the first touch lines 221 in the outermost first touch line group Z1 needs to be changed, and the third common signal line 213 and its related wiring do not need to be changed, and the change range is relatively small.
[0216] In some specific embodiments, the number of the first touch lines 221 located in the side area of the outermost first touch line group Z1 may be reduced. In this way, space may be freed for the third common signal line 213 .
[0217] In some specific embodiments, among the M first touch line groups Z1, except for the outermost first touch line group Z1, the first touch lines 221 of the other first touch line groups Z1 have a third routing pitch h3, where the third routing pitch h3 is equal to the first routing pitch h1. For example, the first touch lines 221 in any of the second first touch line groups Z1 through the M-1 first touch line group Z1 have the third routing pitch h3. This allows the first touch lines 221 located in the display area AA to be evenly distributed, thereby improving routing uniformity.
[0218] In this example, the first trace spacing h1 may be greater than or equal to the second trace spacing h2. When the first trace spacing h1 is greater than the second trace spacing h2, the display substrate may adopt any one of the first, second, and third stacking structures.
[0219] When the first line spacing h1 is equal to the second line spacing h2, the display substrate adopts the third laminate structure. In this example, the line spacing of the first touch lines 221 in any two of the M first touch line groups Z1 can be made the same. This ensures that the line layouts of all first touch line groups Z1 are substantially consistent.
[0220] In some specific embodiments, among the M first touch line groups Z1 , the outermost first touch line group Z1 has the same resistance as the other first touch line groups Z1 .
[0221] In this example, the outermost first touch line group Z1 may refer to the first or Mth first touch line group Z1, and the other first touch line groups Z1 may refer to the second to M-1th first touch line groups Z1. For example, the number and line width of the first touch lines 221 in the outermost first touch line group Z1 and the other first touch line groups Z1 are the same. Thus, the outermost first touch line group Z1 and the other first touch line groups Z1 can have the same resistance. For another example, the number of first touch lines 221 in the outermost first touch line group Z1 may be smaller than the number of first touch lines 221 in the other first touch line groups Z1, but the line width of the first touch lines 221 in the outermost first touch line group Z1 may be larger than the line width of the first touch lines 221 in the other first touch line groups Z1. Thus, the outermost first touch line group Z1 and the other first touch line groups Z1 can also have the same resistance. By making the resistance of the outermost first touch line group Z1 and the other first touch line groups Z1 the same, uniformity of touch detection is facilitated.
[0222] Referring to Figure 12 , in some embodiments, the first touch lines 221 and the third common signal lines 213 are arranged in different layers in the portion located in the side region. The orthographic projection of the third common signal lines 213 on the base substrate 200 defines a first pattern. In the outermost of the M first touch line groups, the orthographic projection of the first touch lines 221 located in the display area AA on the base substrate 200 defines a second pattern. The orthographic projection of the first touch lines 221 located in the side region on the base substrate 200 defines a fourth pattern. The first and fourth patterns overlap.
[0223] In this example, the display substrate adopts a third laminate structure. The portion of the third common signal line 213 located in the side region can remain in the original conductive film layer. For example, the portion of the third common signal line 213 located in the side region is located in the third conductive layer DD3. In other words, the portion of the third common signal line 213 located in the side region is arranged in the same layer as the data line DL. As a result, the first touch line 221 can be isolated from the third common signal line 213 by the insulating layer provided between the first conductive layer DD1 and the third conductive layer DD3. This also maintains a sufficient distance between the first touch line 221 and the third common signal line 213.
[0224] In this example, the first touch line group Z1 and the third common signal line 213 have greater routing freedom. Referring to FIG11C , in the side area, the third common signal line 213 can pass through the area where the first touch line 221 is located. In this case, the third common signal line 213 and related routing lines do not need to be modified. Furthermore, the routing spacing between the outermost first touch line group Z1 and the other first touch line groups Z1 can be consistent. For example, referring to FIG5 , the routing spacing d2 of the outermost first touch line group Z1 (e.g., the x+2 first touch line group Z1 in FIG5 ) is the same as the routing spacing (e.g., the third routing spacing h3) of the other first touch line groups Z1 (e.g., the xth first touch line group Z1 in FIG5 ).
[0225] FIG14 schematically shows a schematic diagram of the connection between the third common signal line and the connection line according to an embodiment of the present disclosure.
[0226] Referring to Figure 14 , it's important to note that in the side regions, the third common signal line 213 can be connected to the common electrode line in the display region via the connection line V1 located in the second transparent electrode layer DJ, and further connected to the second electrode of each sub-pixel via the common electrode line. Therefore, in this example, while the first touch line 221 in the outermost first touch line group Z1 can overlap with the third common signal line 213, the first touch line 221 still needs to avoid the connection area between the third common signal line 213 and the connection line V1.
[0227] In some specific embodiments, the two side regions include a first side region Q31 and a second side region Q32. With reference to Figures 5 and 6, the first side region Q31 is located on the left side of the display area AA, and the second side region Q32 is located on the right side of the display area AA. The display substrate also includes: a first common signal line 211, a second common signal line 212, and a touch binding terminal PAD2 provided on the base substrate 200 and located in the peripheral area NA. The first common signal line 211 and the second common signal line 212 are provided with an insulating space between them, and the first common signal line 211 and the second common signal line 212 are respectively connected to the touch binding terminal PAD2.
[0228] For example, with reference to Figures 5, 6, and 9, the touch binding terminal PAD2 includes a plurality of first sensing terminals F1, a plurality of second sensing terminals F2, a plurality of third sensing terminals F3, and a plurality of fourth sensing terminals F4. The M first touch line groups Z1 are electrically connected to the plurality of first sensing terminals F1, with different first touch line groups Z1 being electrically connected to different first sensing terminals F1. The N second touch line groups Z2 are electrically connected to the plurality of second sensing terminals F2, with different second touch line groups Z2 being electrically connected to different second sensing terminals F2. One end of the first common signal line 211 is electrically connected to one third sensing terminal F3, and the other end is electrically connected to another third sensing terminal F3. The second common signal line 212 is electrically connected to one fourth sensing terminal F4, and the other end is electrically connected to another fourth sensing terminal F4. Optionally, the plurality of first sensing terminals F1 are located between two adjacent third sensing terminals F3, and the plurality of second sensing terminals F2 are located between two adjacent fourth sensing terminals F4.
[0229] Optionally, the display substrate further includes a plurality of first touch leads 231 and a plurality of second touch leads 232. The M first touch line groups Z1 are electrically connected to the touch binding terminal PAD2 via the plurality of first touch leads 231, and different first touch line groups Z1 are electrically connected to the touch binding terminal PAD2 via different first touch leads 231. The N second touch line groups Z2 are electrically connected to the touch binding terminal PAD2 via the plurality of second touch leads 232, and different second touch line groups Z2 are electrically connected to the touch binding terminal PAD2 via different first touch leads 231. For example, each first touch line group Z1 is connected to the same first sensing terminal F1 via a first touch lead 231, and each second touch line group Z2 is connected to the same second sensing terminal F2 via a second touch lead 232.
[0230] For example, after the xth and x+2th first touch line groups Z1 and Z1 are electrically connected to the touch detection chip, the xth and x+2th first touch line groups Z1, the first common signal lines 211, and the corresponding first touch leads 231 collectively form a first touch electromagnetic coil. The "corresponding first touch leads 231" refer to the first touch leads 231 connected to the xth and x+2th first touch line groups Z1. After the yth and y+2th second touch line groups Z2 are electrically connected to the touch detection chip, the yth and y+12th second touch line groups Z2, the second common signal lines 212, and the corresponding second touch leads 232 collectively form a second touch electromagnetic coil. The “corresponding second touch wires 232 ” refer to the second touch wires 232 connected to the yth second touch wire group Z2 and the y+2th second touch wire group Z2 .
[0231] 5, 6, and 8, in the bonding pair region Q1, the orthographic projection of the first common signal line 211 on the base substrate 200 is located on a side of the orthographic projection of the second common signal line 212 on the base substrate 200 that is closer to the orthographic projection of the display area AA on the base substrate 200. In the side region, the orthographic projection of the second common signal line 212 on the base substrate 200 is located on a side of the orthographic projection of the first common signal line 211 on the base substrate 200 that is closer to the orthographic projection of the display area AA on the base substrate 200. The first touch line group Z1 is connected to the first common signal line 211 in the bonding pair region Q1, and the second touch line group Z2 is connected to the second common signal line 212 in the first side region Q31.
[0232] Optionally, in the bonding pair region Q1, the first common signal line 211 and the second common signal line 212 are provided on the same layer. For example, in the bonding pair region Q1, the first common signal line 211 and the second common signal line 212 are provided on the same layer as the gate line GL. Thus, the first common signal line 211 and the second common signal line 212 can avoid routing conflicts with the data line DL, thereby reducing the number of jumper structures provided to address such routing conflicts.
[0233] In the binding pair area Q1, the first common signal line 211 is closer to the display area AA than the second common signal line 212. In this way, the connection area between the first touch line 221 and the first common signal line 211 can be placed between the second common signal line 212 and the display area AA, thereby avoiding overlapping of the first touch line 221 and the second common signal line 212 and reducing crosstalk between the first touch line 221 and the second common signal line 212.
[0234] In the side region, the second common signal line 212 is closer to the display area AA than the first common signal line 211. Thus, in the first side region Q31, the connection area between the second touch line 222 and the second common signal line 212 can be placed between the first common signal line 211 and the display area AA. This prevents the second touch line 222 from overlapping the first common signal line 211, reducing crosstalk between the second touch line 222 and the first common signal line 211. In the second side region Q32, the positional relationship between the first common signal line 211 and the second common signal line 212 is consistent with that in the first side region Q31, which facilitates routing uniformity.
[0235] In some specific embodiments, the peripheral area NA further includes: a plurality of corner areas Q4 , at least one corner area Q4 being located between the bonding pair area Q1 and the side area.
[0236] FIG15 schematically shows a schematic diagram of one of the corner areas according to an embodiment of the present disclosure.
[0237] 15 , in at least one corner region Q4, the first common signal line 211 includes a first extension portion 2111, a second extension portion 2112, and a first connection portion 2113 connected between the first extension portion 2111 and the second extension portion 2112. The second common signal line 212 includes a third extension portion 2121, a fourth extension portion 2122, and a second connection portion 2123 connected between the third extension portion 2121 and the fourth extension portion 2122. The first extension portion 2111 and the third extension portion 2121 both extend in the second direction X and are disposed on the same layer. The second extension portion 2112 and the fourth extension portion 2122 both extend in the first direction Y and are disposed on the same layer. The first connection portion 2113 is located in the second transparent electrode layer DJ and extends in the second direction X and crosses the fourth extension portion 2122.
[0238] For example, referring to Figures 8 and 14, the peripheral area NA includes four corner areas Q4, wherein the upper left and upper right corner areas Q4 are first corner areas, and the lower left and lower right corner areas Q4 are second corner areas. In each corner area Q4, the first common signal line 211 includes a first extension portion 2111 extending in the horizontal direction and a second extension portion 2112 extending in the vertical direction, and the second common signal line 212 includes a third extension portion 2121 extending in the horizontal direction and a fourth extension portion 2122 extending in the vertical direction. The first extension portion 2111 and the third extension portion 2121 can be arranged in the same layer as the gate line GL, and the second extension portion 2112 and the fourth extension portion 2122 can be arranged in the same layer as the data line DL. The first connecting portion 2113 partially overlaps with the first extending portion 2111, and in the overlapping area, the first connecting portion 2113 is connected to the first extending portion 2111. The first connecting portion 2113 also overlaps with the second extending portion 2112. In the overlapping region, the first connecting portion 2113 is connected to the second extending portion 2112. The second connecting portion 2123 partially overlaps with the third extending portion 2121. In the overlapping region, the second connecting portion 2123 is connected to the third extending portion 2121. The second connecting portion 2123 also overlaps with the fourth extending portion 2122. In the overlapping region, the second connecting portion 2123 is connected to the fourth extending portion 2122. The second connecting portion 2123 may be located in the second transparent electrode layer DJ.
[0239] As described above, in the binding pair area Q1, the first common signal line 211 is closer to the display area AA than the second common signal line 212, that is, the first common signal line 211 is located on the inner side of the second common signal line 212. In the side area, the second common signal line 212 is closer to the display area AA than the first common signal line 211, that is, the second common signal line 212 is located on the inner side of the first common signal line 211. In the embodiment of the present disclosure, in the corner area Q4, through the above-mentioned connection method, while changing the extension direction of the first common signal line 211 and the second common signal line 212, the inside-outside relationship between the two is swapped. This reduces the overlapping area between the first touch line 221 and the second common signal line 212 (and the second touch line 222 and the first common signal line 211), thereby reducing the crosstalk between the first touch line 221 and the second common signal line 212 (and the second touch line 222 and the first common signal line 211).
[0240] In other specific embodiments, the display substrate further includes a data line DL provided on the base substrate 200. For example, the sub-pixel PX includes a first transistor, wherein one of the first electrode and the second electrode of the first transistor is connected to the data line DL, and the other is connected to the pixel electrode in the sub-pixel PX, and the gate of the first transistor is connected to the gate line GL. The third common signal line 213 is connected to the second electrode, thereby providing a constant common signal to the second electrode. When an effective level signal is provided on the gate line GL, the first transistor is turned on, and the data signal on the data line DL is transmitted to the first electrode through the first transistor. At this time, the second electrode and the first electrode of the sub-pixel PX can generate a first electric field based on the common signal and the data signal. In addition, the first electric field drives the liquid crystal in the liquid crystal layer to deflect to achieve a display function.
[0241] Figure 16 schematically illustrates a first side region according to an embodiment of the present disclosure, and Figure 17A schematically illustrates one of the schematic diagrams of the connection between the second touch wire group and the second common signal line according to an embodiment of the present disclosure. To illustrate the eighth transfer structure, the first sub-segment L11 in Figure 17A is rendered transparent.
[0242] 5, 6 and 8, in an embodiment of the present disclosure, the first common signal line 211 includes a first line segment L1 located in the binding pair area Q1 and a second line segment L2 located in the side area, the second common signal line includes a third line segment L3 located in the binding pair area Q1 and a fourth line segment L4 located in the side area, and the third common signal line 213 includes a fifth line segment L5 located in the binding pair area Q1 and a sixth line segment L6 located in the side area Q3.
[0243] With reference to Figures 6, 16, and 17A, the second common signal line 212 includes a first sub-segment L11 located in the first side region Q31. Specifically, the fourth segment L4 located in the first side region Q31 includes the first sub-segment L11. The first sub-segment L11 is provided on the same layer as the data line, while the second touch line 222 is provided on a different layer from the data line. The orthographic projection of the portion of the second touch line group Z2 located in the first side region Q31 on the base substrate 200 does not overlap with the orthographic projection of the first sub-segment L11 on the base substrate 200. Multiple second touch line groups Z2 are connected to the first sub-segment L11 via a common third adapter structure ZJ3.
[0244] In an embodiment of the present disclosure, the first sub-line segment L11 is provided in the same layer as the data line DL to avoid routing conflicts with the gate line GL. The second touch line 222 can be provided in the same layer as the gate line GL, or the second touch line 222 can be located alone in the second conductive layer DD2. In an embodiment of the present disclosure, at least two second touch line groups Z2 are connected together by a third transfer structure ZJ3 before extending to the position of the first sub-line segment L11. Optionally, the third transfer structure ZJ3 is provided in a different layer from the gate line GL to avoid short circuit with the gate line GL. For example, the display substrate adopts the second laminated structure, the second touch line 222 and the third transfer structure ZJ3 are both located in the second conductive layer DD2, and the gate line GL is located in the fourth conductive layer DD4.
[0245] Optionally, after extending to the location of the first sub-line segment L11, the third transition structure ZJ3 may be connected to the first sub-line segment L11 through an eighth transition structure ZJ8. Exemplarily, the eighth transition structure ZJ8 is located in the second transparent electrode layer DJ.
[0246] In some specific embodiments, the spacing h4 between the second touch line group Z2 and the second common signal line 212 is less than or equal to 3500 μm in the second direction X. For example, the spacing h4 between the second touch line group Z2 and the second common signal line 212 is less than or equal to 3000 μm. In this way, the second touch line group Z2 can be placed as close as possible to the second common signal line 212, thereby increasing the coverage area of the second touch line group Z2.
[0247] Figure 17B schematically shows a second schematic diagram of the connection between the second touch wire group and the second common signal line according to an embodiment of the present disclosure. In order to show the second adapter structure, the first sub-segment L11 in Figure 17B is made transparent.
[0248] Referring to Figure 17B , in some other embodiments, the display substrate further includes data lines DL disposed on the base substrate 200. The second common signal lines 212 include first sub-segments L11 located in the first side region Q31. The first sub-segments L11 are disposed on the same layer as the data lines GL, while the second touch lines 222 are disposed on a different layer from the data lines GL. The orthographic projection of the portion of the second touch line group Z2 located in the first side region Q31 on the base substrate 200 overlaps with the orthographic projection of the first sub-segment L11 on the base substrate 200. In the overlapping region, the second touch line group Z2 and the first sub-segment L11 are connected via a second transition structure ZJ2. The second transition structure ZJ2 is located in the second transparent electrode layer DJ. In one example, the second transition structures ZJ2 connected to different second touch line groups Z2 are spaced apart. For example, the second transition structures ZJ2 on the display substrate are independent block-shaped structures. In another example, the second transfer structures ZJ2 connected to different second touch line groups Z2 form an integrated structure. For example, the second transfer structures ZJ2 on the display substrate are connected to each other, thereby continuously extending from the upper end of the first side area Q31 (that is, the end close to the binding area Q1) to the lower end of the first side area Q31 (that is, the end close to the binding area Q2).
[0249] FIG18 schematically shows a schematic diagram of a first via hole and a second via hole according to an embodiment of the present disclosure.
[0250] For example, referring to Figure 18 , the second touch wire group Z2 includes a first connection end LJD1, which extends to the location of the first sub-segment L11 and overlaps with the first sub-segment L11. In this overlapping area, the first connection end LJD1 and the second adapter structure ZJ2 can be connected via a plurality of first vias K1. A adapter opening ZJK is defined in the first connection end LJD1, and the first sub-segment L11 and the second adapter structure ZJ2 are connected within the adapter opening ZJK. Optionally, the plurality of first vias K1 can form a ring; for example, the plurality of first vias K1 can surround the adapter opening ZJK, thereby connecting the first connection end LJD1 and the second adapter structure ZJ2 at the periphery of the adapter opening ZJK. Optionally, the transfer opening ZJK is filled with a first insulating structure, which may be one or more insulating layers located between the second conductive layer DD2 and the second transparent electrode layer DJ. A plurality of second vias K2 are provided on the first insulating structure, and the plurality of second vias K2 are arranged along the second direction X. The second transfer structure ZJ2 may be connected to the first sub-line segment L11 through the plurality of second vias K2.
[0251] Optionally, in the overlapping area between the first connecting end portion LJD1 and the first sub-line segment L11 , the first connecting end portion LJD1 may also be directly connected to the first sub-line segment L11 .
[0252] In this example, the distance between the second touch wire group Z2 and the second common signal line 212 is further reduced, thereby further increasing the coverage area of the second touch wire group Z2 and improving space utilization.
[0253] FIG19 schematically shows one of the schematic diagrams of the positional relationship between the shift register unit and the first common signal line according to an embodiment of the present disclosure.
[0254] Referring to FIG. 19 , in some specific embodiments, the display substrate further includes: data lines and gate lines disposed on the base substrate; and a shift register unit 310 disposed on the base substrate 200 and located in a side region. The orthographic projection of the shift register unit 310 on the base substrate 200 is located on a side of the orthographic projection of the first common signal line 211 on the base substrate 200 that faces away from the orthographic projection of the display area AA on the base substrate 200. A first signal line 410 disposed on the base substrate 200 and connected to the shift register unit 310 is disposed on the same layer as at least one of the data line DL and the gate line GL. For example, the first signal line 410 includes, but is not limited to, a clock signal line, a first voltage signal line, and a second voltage signal line. In the side region, the orthographic projection of the first signal line 410 on the base substrate 200 is located on a side of the orthographic projection of the shift register unit 310 on the base substrate 200 that faces away from the orthographic projection of the first common signal line 211 on the base substrate 200.
[0255] In an embodiment of the present disclosure, one of the first voltage signal line and the second voltage signal line is used to provide a constant low-level signal, and the other is used to provide a constant high-level signal. For example, in the side area, along the direction away from the display area AA, there are the first touch line group Z1 (the 1st or Mth), the second common signal line 212, and the first common signal line 211. The shift register unit 310 is located on the side of the first common signal line 211 away from the display area AA, and the clock signal line, the first voltage signal line, and the second voltage signal line are located on the side of the shift register unit 310 away from the display area AA. In this way, the clock signal line, the first voltage signal line, and the second voltage signal line can be kept away from the area where the touch lines are located, preventing the lines from crossing and avoiding crosstalk.
[0256] Figure 20 schematically shows a second schematic diagram of the positional relationship between the shift register unit and the first common signal line according to an embodiment of the present disclosure. It should be noted that for clarity, the shift register unit 310 is omitted in Figure 20, and only the area 510 where the shift register unit 310 can be set is shown with dotted lines.
[0257] 20 , in some specific embodiments, the display substrate further includes: data lines DL and gate lines GL disposed on a base substrate; and a shift register unit 310 disposed on the base substrate 200 and located in a side region. The orthographic projection of the shift register unit 310 on the base substrate 200 is located on a side of the orthographic projection of the second common signal line 212 on the base substrate 200 that is close to the orthographic projection of the display area AA on the base substrate 200. The second touch lines 222 are disposed in a different layer from the data lines DL and the gate lines GL. The orthographic projection of at least one second touch line 222 on the base substrate 200 overlaps with the orthographic projection of the shift register unit 310 on the base substrate 200.
[0258] In this example, the display substrate adopts the second stacked structure or the third stacked structure. In the embodiment of the present disclosure, in the region where the shift register unit 310 is located, a large number of wirings and conductive structures are arranged on the same layer as the gate line GL, and the second touch line 222 is separately located in the second conductive layer DD2. This can prevent the second touch line 222 from shorting with the wirings and conductive structures arranged on the same layer as the gate line GL in the region where the shift register unit 310 is located.
[0259] Optionally, the remaining conductive lines and conductive structures in the region where the shift register unit 310 is located are also disposed in a different layer from the second touch line 222. For example, in the second stacked structure, these conductive lines and conductive structures may be located in the first conductive layer DD1, and in the third stacked structure, these conductive lines and conductive structures may be located in the third conductive layer DD3. Of course, the above description is merely exemplary, and these conductive lines and conductive structures may be located in any suitable conductive film layer, for example, in the second transparent electrode layer DJ.
[0260] It should be noted that in the area where the shift register unit 310 is located, a large number of wirings and conductive structures are arranged on the same layer as the gate lines GL. The gaps between these wirings and conductive structures are extremely small. If the second touch line 222 is arranged on the same layer as the gate lines GL, the second touch line 222 is very likely to short-circuit with these wirings and conductive structures. Therefore, if the first stacked structure is adopted, that is, the second touch line 222 is arranged on the same layer as the gate lines GL, then the second touch line 222 needs to avoid the shift register unit 310. For example, the second touch line 222 should be located on the side of the shift register unit 310 closer to the display area AA.
[0261] In some specific embodiments, the orthographic projection of the first touch line 221 on the base substrate 200 does not overlap with the orthographic projection of the shift register unit 310 on the base substrate 200 .
[0262] In this example, the display substrate adopts the second or third stacked structure. In the region where the shift register unit 310 is located, a large number of wirings and conductive structures are arranged on the same layer as the data line DL. For example, the data line DL and the first electrode of the second transistor are both located in the first conductive layer DD1 (or the third conductive layer DD3). It should be noted that the gaps between these wirings and conductive structures are extremely small. If the first touch line 221 is arranged on the same layer as the data line DL, the first touch line 221 will easily short-circuit with these wirings and conductive structures. Therefore, if the second stacked structure is to be adopted, that is, the second touch line 222 is arranged in the same layer as the gate line GL, then the second touch line 222 needs to avoid the shift register unit 310. For example, in the outermost first touch line group Z1, the first touch line 221 located in the side area is further divided into two parts, one part is located on the side of the shift register unit 310 close to the display area AA, and the other part is located on the side of the shift register unit 310 away from the display area AA. Alternatively, the first touch line 221 is only provided on the side of the shift register unit 310 close to the display area AA.
[0263] In some specific embodiments, the display substrate further includes: data lines DL and gate lines GL disposed on a base substrate 200, and a shift register unit 310 disposed on the base substrate 200 and located in a side region. The orthographic projection of the shift register unit 310 on the base substrate 200 is located on a side of the orthographic projection of the second common signal line 212 on the base substrate 200 that is closer to the orthographic projection of the display area AA on the base substrate 200. The first touch lines 221 and the second touch lines 222 are disposed in different layers from the data lines DL and the gate lines GL. The orthographic projection of at least one of the second touch lines 222 on the base substrate 200 overlaps with the orthographic projection of the shift register unit 310 on the base substrate 200, and the orthographic projection of at least one of the first touch lines 221 on the base substrate 200 overlaps with the orthographic projection of the shift register unit 310 on the base substrate 200.
[0264] In this example, the display substrate employs a third type of stacked structure. For example, the wiring and conductive structures in the area where the shift register unit 310 is located are partially located on the fourth conductive layer DD4 and partially located on the third conductive layer DD3. The first touch line 221 and the second touch line 222 are located on the first conductive layer DD1 and the second conductive layer DD2, respectively. This prevents the first touch line 221 and the second touch line 222 from conflicting with the wiring and conductive structures in the area where the shift register unit 310 is located. In this example, the first touch line 221 and the second touch line 222 have greater routing freedom, eliminating the need to avoid the shift register unit 310 and allowing them to overlap with the shift register unit 310, thereby improving space utilization. At the same time, compared with the solution in which the shift register unit 310 is set outside the area where the touch line is located, this method can make the width of the peripheral area NA narrower to achieve a narrow frame, or can make the first touch line 221 and the second touch line 222 extend further toward the boundary of the display substrate, thereby further increasing the touch detection area.
[0265] Of course, the above description is merely an exemplary description, and the conductive wires and conductive structures in the area where the shift register unit 310 is located may be located in any suitable conductive film layer, for example, may also be located in the second transparent electrode layer DJ.
[0266] FIG. 21 schematically shows a schematic diagram of providing a second common signal line in a first gap according to an embodiment of the present disclosure.
[0267] Referring to Figure 21 , in some specific embodiments, the display substrate further includes: a plurality of shift register units 310 disposed on the base substrate 200 and located in the side region. The orthographic projections of the shift register units 310 on the base substrate 200 are located on a side of the orthographic projection of the second common signal line 212 on the base substrate 200 that is closer to the orthographic projection of the display area AA on the base substrate 200. The plurality of shift register units 310 are arranged along a first direction Y. A first gap is defined between two adjacent shift register units 310, and the orthographic projection of at least one second touch line 222 on the base substrate 200 passes through the orthographic projection of the first gap on the base substrate 200. For example, in the embodiments of the present disclosure, each second touch line 222 passes through a first gap, and each gap contains only one second touch line 222.
[0268] In this example, the display substrate can adopt a first laminate structure, a second laminate structure, or a third laminate structure. In this manner, when the display substrate adopts the first laminate structure, the second touch line 222 passes through the first gap, thereby preventing short circuits with the wiring or conductive structures in the area where the shift register unit 310 is located. When the display substrate adopts the second or third laminate structures, the second touch line 222 passes through the first gap, thereby maintaining a greater distance between the second touch line 222 and the shift register unit 310, thereby reducing crosstalk.
[0269] 8 , in some embodiments, the orthographic projections of the M first touch line groups Z1 on the base substrate 200 define a seventh pattern, and the orthographic projections of the N second touch line groups Z2 on the base substrate 200 define an eighth pattern.
[0270] For example, the seventh pattern may be a pattern formed by the orthographic projections of the outermost edges of the M first touch wire groups Z1 on the base substrate 200. The eighth pattern may be a pattern formed by the orthographic projections of the outermost edges of the N second touch wire groups Z2 on the base substrate 200.
[0271] The orthographic projection of the first common signal line 211 on the base substrate 200 at least partially surrounds the seventh pattern. The orthographic projection of the second common signal line 212 on the base substrate 200 at least partially surrounds the eighth pattern.
[0272] The first common signal line 211 extends continuously through the first side region Q31, the bonding pair region Q1, and the second side region Q32, thereby encircling the periphery of the M first touch line groups Z1. The M first touch line groups Z1 are connected to the first common signal line 211 in the bonding pair region Q1. The first common signal line 211 extends from the first side region Q31 and the second side region Q32 to the bonding region Q2. In the bonding region Q2, one end of the first common signal line 211 is electrically connected to one third sensing terminal F3, and the other end is electrically connected to another third sensing terminal F3. This allows the first common signal line 211 to be reused as a set of windings for the first touch electromagnetic coil. The second common signal line 212 extends continuously through the first side region Q31, the bonding pair region Q1, and the second side region Q32, thereby encircling the periphery of the N second touch line groups Z2. The N second touch line groups Z2 are connected to the second common signal line 212 in the first side region Q31. The second touch common signal line 212 extends from the first side region Q31 and the second side region Q32 to the binding region Q2. In the binding region Q2, one end of the second touch common signal line 212 is electrically connected to one fourth sensing terminal F4, and the other end is electrically connected to another fourth sensing terminal F4. In this way, the second common signal line 212 can be reused as a set of windings for the second touch electromagnetic coil.
[0273] The orthographic projection of the third common signal line 213 on the base substrate 200 at least partially surrounds the orthographic projection of the display area AA on the base substrate 200, and the orthographic projection of either the first common signal line 211 or the second common signal line 212 on the base substrate 200 is located on the side of the orthographic projection of the third common signal line 213 on the base substrate 200 that is away from the orthographic projection of the display area AA on the base substrate 200.
[0274] In this embodiment, crosstalk is improved by routing the first touch line 221 away from the third common signal line 213. In this embodiment, the third common signal line 213 can be located inside the touch common signal lines (i.e., the first common signal line 211 and the second common signal line 212) in both side regions. In this embodiment, the third common signal line 213 is also located inside the touch common signal lines in the bonding pair region Q1 and the bonding region Q2. This ensures that the positional relationship between the touch common signal line and the third common signal line 213 remains consistent across the entire display substrate, thereby ensuring uniform routing of the touch common signal lines and the third common signal line 213.
[0275] In some other specific embodiments, the orthographic projections of the M first touch line groups Z1 on the substrate 200 define a seventh pattern, and the orthographic projection of the first common signal line 211 on the substrate 200 at least partially surrounds the seventh pattern. The orthographic projections of the N second touch line groups Z2 on the substrate 200 define an eighth pattern, and the orthographic projection of the second common signal line 212 on the substrate 200 at least partially surrounds the eighth pattern. The orthographic projection of the third common signal line 213 on the substrate 200 at least partially surrounds the orthographic projection of the display area AA on the substrate 200. In at least one of the binding area Q2 and the binding pair area Q1, the orthographic projection of either the first common signal line 211 or the second common signal line 212 on the substrate 200 is located on a side of the orthographic projection of the third common signal line 213 on the substrate 200 that is closer to the orthographic projection of the display area AA on the substrate 200. In the side area, the orthographic projection of any one of the first common signal line 211 and the second common signal line 212 on the base substrate 200 is located on a side away from the orthographic projection of the display area AA on the base substrate 200 of the third common signal line 213 on the base substrate 200 .
[0276] Unlike the previous embodiment, in this embodiment, the third common signal line 213 remains inside the touch common signal line in the two side regions. However, in the bonding area Q1 and the bonding area Q2, the third common signal line 213 is outside the touch common signal line. This increases routing flexibility. Optionally, the inside-outside relationship between the third common signal line 213 and the touch common signal line can be swapped in the corner region Q4.
[0277] FIG22 schematically shows a second schematic diagram of the third common signal line according to an embodiment of the present disclosure.
[0278] Referring to FIG. 22 , in some other embodiments, the orthographic projections of the M first touch line groups Z1 on the substrate 200 define a seventh pattern, and the orthographic projection of the first common signal line 211 on the substrate 200 at least partially surrounds the seventh pattern. The orthographic projections of the N second touch line groups Z2 on the substrate 200 define an eighth pattern, and the orthographic projection of the second common signal line 212 on the substrate 200 at least partially surrounds the eighth pattern. The orthographic projection of the third common signal line 213 on the substrate 200 at least partially surrounds the orthographic projection of the display area AA on the substrate 200. The orthographic projection of either the first common signal line 211 or the second common signal line 212 on the substrate 200 is located on a side of the orthographic projection of the third common signal line 213 on the substrate 200 that is closer to the orthographic projection of the display area AA on the substrate 200.
[0279] Unlike the previous embodiment, in this embodiment, crosstalk is mitigated by routing the third common signal line 213 away from the first touch line 221. In this embodiment, in both side regions, the third common signal line 213 is located on the side of the first touch line group Z1 facing away from the display area AA. Furthermore, the third common signal line 213 is located on the side of the touch common signal line facing away from the display area AA. In other words, the third common signal line 213 is positioned outside the touch common signal line, thus keeping it away from the entire touch wiring area. In this embodiment, the third common signal line 213 is also positioned outside the touch common signal line in the binding pair area Q1 and the binding area Q2. This ensures that the positional relationship between the touch common signal line and the third common signal line 213 remains consistent across the entire display substrate, ensuring uniform routing of the touch common signal line and the third common signal line 213.
[0280] In some other specific embodiments, the orthographic projections of the M first touch line groups Z1 on the substrate 200 define a seventh pattern, and the orthographic projection of the first common signal line 211 on the substrate 200 at least partially surrounds the seventh pattern. The orthographic projections of the N second touch line groups Z2 on the substrate 200 define an eighth pattern, and the orthographic projection of the second common signal line 212 on the substrate 200 at least partially surrounds the eighth pattern. The orthographic projection of the third common signal line 213 on the substrate 200 at least partially surrounds the orthographic projection of the display area AA on the substrate 200. In at least one of the binding area Q2 and the binding pair area Q1, the orthographic projection of either the first common signal line 211 or the second common signal line 212 on the substrate 200 is located on a side of the orthographic projection of the third common signal line 213 on the substrate 200 that is away from the orthographic projection of the display area AA on the substrate 200. In the side area, the orthographic projection of any one of the first common signal line 211 and the second common signal line 212 on the base substrate 200 is located on a side where the orthographic projection of the third common signal line 213 on the base substrate 200 is close to the orthographic projection of the display area AA on the base substrate 200 .
[0281] Unlike the previous embodiment, in this embodiment, the third common signal line 213 remains outside the touch common signal line in the two side regions. However, in the bonding area Q1 and the bonding area Q2, the third common signal line 213 is located inside the touch common signal line. This increases routing flexibility. Optionally, the inside-outside relationship between the third common signal line 213 and the touch common signal line can be swapped in the corner region Q4.
[0282] Optionally, in the above embodiments, the internal and external relationship between the first common signal line 211 and the second common signal line 212 can be determined according to actual needs. For example, the first common signal line 211 can be located on the outside of the second common signal line 212; or, the second common signal line 212 can be located on the outside of the first common signal line 211; or, as described above, in the binding pair area Q1, the second common signal line 212 is located on the outside of the first common signal line 211, and in the two side areas, the first common signal line 211 can be located on the outside of the second common signal line 212.
[0283] 23A to 23C schematically illustrate a schematic diagram of connecting a first touch wire group and a first common signal line according to an embodiment of the present disclosure.
[0284] With reference to FIG8 and FIG23A to FIG23C, in some specific embodiments, the display substrate further includes: a gate line GL provided on the base substrate 200 and a common electrode line (not shown in the figure) provided on the base substrate 200 and located in the display area AA. The third common signal line 213 includes a fifth line segment L5 located in the binding pair area Q1. The fifth line segment L5 can be provided in the same layer as the gate line GL to avoid short circuit with the data line DL. The fifth line segment L5 is connected to the common electrode line via the sixth transition structure ZJ6, and the common electrode line is connected to the second electrode in the sub-pixel PX. Exemplarily, the common electrode line in the display area AA can extend along the second direction X and can be connected to the second electrodes of the plurality of sub-pixels PX (the second electrode can be, for example, a common electrode), thereby simultaneously providing a constant display common signal to the second electrodes of the plurality of sub-pixels PX.
[0285] The first common signal line 211 includes a first line segment L1 located in the bonding pair region Q1. The first line segment L1 is disposed in the same layer as the gate line GL, while the first touch line 221 is disposed in a different layer from the gate line GL. A sixth transfer structure ZJ6 is located in the second transparent electrode layer DJ. A first opening H1 is provided on the sixth transfer structure ZJ6. The orthographic projection of the portion of the first touch line group Z1 located in the bonding pair region Q1 on the substrate 200 overlaps with the orthographic projection of the first line segment L1 on the substrate 200. Furthermore, in the overlapping region, the first touch line group Z1 and the first line segment L1 are connected via the first transfer structure ZJ1. The first transfer structure ZJ1 is located in the second transparent electrode layer DJ. The orthographic projection of the first transfer structure ZJ1 on the substrate 200 is located within the orthographic projection of the first opening H1 on the substrate 200.
[0286] Exemplarily, the first line segment L1 can be arranged in the same layer as the gate line GL to avoid routing conflicts with the data line DL. The first line segment L1 and the first touch line 221 are arranged in different layers. In the binding pair area Q1, each first touch line 221 in the first touch line group Z1 extends in a direction away from the display area AA until it extends to the position of the first line segment L1 and overlaps with the first line segment L1 and a portion of the first adapter structure ZJ1. In this overlapping area, the first touch line 221 is connected to the first adapter structure ZJ1 through multiple third vias. Optionally, in this overlapping area, the first touch line 221 can also be directly connected to the first line segment L1 through multiple fourth vias. Another portion of the first adapter structure ZJ1 overlaps with the first line segment L1, but no longer overlaps with the first touch line 221. This portion is connected to the first line segment L1 through multiple fifth vias.
[0287] Exemplarily, the sixth adapter structure ZJ6 and the first line segment L1 extend along the second direction X, at least partially overlapping each other. Within this overlapping region, a first opening H1 is provided in the sixth adapter structure ZJ6. Optionally, the first adapter structure ZJ1 and the sixth adapter structure ZJ6 are formed simultaneously, with the first adapter structure ZJ1 positioned within the first opening H1 in the sixth adapter structure ZJ6 and insulated from the first adapter structure ZJ1. For example, within the first opening H1, the first adapter structure ZJ1 and the sixth adapter structure ZJ6 have a second spacing therebetween. The second spacing includes a minimum exposure spacing that ensures insulation between the first adapter structure ZJ1 and the sixth adapter structure ZJ6.
[0288] Optionally, the first opening H1 is filled with a second insulating structure that insulates and separates the first transfer structure ZJ1 from the sixth transfer structure ZJ6 . The second insulating structure may be located in one or more insulating film layers on the side of the second transparent electrode layer DJ facing away from the base substrate 200 .
[0289] In this way, the first transfer structure ZJ1 can be used to transfer the first touch wire group Z1 to the first common signal line 211. In addition, in the embodiment of the present disclosure, a first opening H1 is provided in the sixth transfer structure ZJ6 to make room for the first transfer structure ZJ1. In this way, the position of the sixth transfer structure ZJ6 in the binding pair area Q1 does not need to be changed.
[0290] Optionally, the first touch line 221 includes a second connection end LJD2, the orthographic projection of which on the base substrate 200 overlaps with the orthographic projection of the first adapter structure ZJ1 on the base substrate 200. The second connection end LJD2 is thicker than the portion of the first touch line 221 located in the display area AA, thereby facilitating the connection between the first touch line 221 and the first adapter structure ZJ1. For example, the data lines DL located on the left and right sides of the first touch line 221 extend away from the display area AA. In the bonding area Q1, these data lines DL can be electrically connected to structures such as an anti-static unit. At least a portion of these data lines DL bends away from the second connection end LJD2 when approaching the second connection end LJD2, thereby preventing the data lines DL from shorting with the second connection end LJD2.
[0291] 24A and 24B schematically illustrate schematic diagrams in a lead region according to an embodiment of the present disclosure.
[0292] With reference to FIG. 24A and FIG. 24B , in some specific embodiments, the display substrate further includes: data lines DL and gate lines GL disposed on the base substrate 200; the first common signal line 211 includes a first line segment L1 located in a bonding pair region Q1; the first line segment L1 is disposed on the same layer as the first touch line 221, and on a different layer from the data lines DL and gate lines GL. In the bonding pair region Q1, the first touch line group Z1 is directly connected to the first line segment L1.
[0293] In an embodiment of the present disclosure, the display substrate can adopt a third stacked structure. In this embodiment, the first touch line 221 and the first line segment L1 are arranged in the same layer. In this way, the first touch line 221 and the first line segment L1 no longer need to be transferred. Therefore, the first touch line 221 can be directly connected to the first line segment L1, thereby eliminating the step of setting the first opening H1 on the sixth transfer structure ZJ6.
[0294] In some specific embodiments, the peripheral area NA further includes a lead area YX located between the display area AA and the binding area Q2, and the display substrate further includes a data line DL, a second display common signal line DCX, and a first touch lead 231 provided on the base substrate 200;
[0295] The third common signal line 213 includes a seventh line segment L7 located in the lead area YX. The seventh line segment L7 extends in substantially the same direction as the second display common signal line DCX. For example, both the seventh line segment L7 and the second display common signal line DCX extend along the second direction X. The orthographic projection of the seventh line segment L7 on the base substrate 200 is located on a side of the orthographic projection of the second display common signal line DCX on the base substrate 200 that is closer to the display area AA. The seventh line segment L7 is connected to the second display common signal line DCX via a seventh transfer structure ZJ7 located in the second transparent electrode layer DJ. In other words, the third common signal line 213 may be a line located near the display area AA, and the second display common signal line DCX may be a line located far from the display area AA.
[0296] In the lead area YX, the first touch line 221 is connected to the touch binding terminal PAD2 through the first touch lead 231 . The first touch line 221 and the data line DL are arranged in the same layer, and the first touch lead 231 and the data line DL are arranged in different layers.
[0297] For example, the seventh line segment L7 can be disposed in the same layer as the gate line GL to avoid shorting with the data line DL. The first touch lead 231 can be located in the second conductive layer DD2. The first touch line group Z1 is connected to the first touch lead 231 in a one-to-one correspondence. For example, each first touch line 221 in each first touch line group Z1 is electrically connected to the same first sensing terminal F1 in the touch binding terminal PAD2 via the same first touch lead 231.
[0298] With reference to Figures 5, 9, 24A, and 24B, a portion of the first touch leads 231 extend toward the right after connecting to the first touch line group Z1, while another portion extends toward the left after connecting to the first touch line group Z1. All of the first touch leads 231 ultimately converge at the upper side of the touch binding terminal PAD2 and connect to the corresponding first sensing terminals F1 on the touch binding terminal PAD2. For example, the multiple first touch leads 231 extending toward the right are parallel to each other, and the multiple first touch leads 231 extending toward the left are parallel to each other.
[0299] 25A and 25B schematically illustrate a schematic diagram of connecting a first touch wire and a first touch lead according to an embodiment of the present disclosure.
[0300] 24A to 25B , in an embodiment of the present disclosure, a second opening H2 is provided on the seventh transfer structure ZJ7, the first touch line 221 is connected to the first touch lead 231 through the fourth transfer structure ZJ4, the fourth transfer structure ZJ4 is located in the second transparent electrode layer DJ, and the orthographic projection of the fourth transfer structure ZJ4 on the base substrate 200 is located within the orthographic projection of the second opening H2 on the base substrate 200.
[0301] For example, referring to Figures 24A to 24C , the first touch lines 221 in the same first touch line group Z1 are electrically connected to the same first touch lead 231 via the same first connection pad LJP1, which extends along the second direction X. In the lead area YX, each first touch line 221 in the first touch line group Z1 extends away from the display area AA until it reaches the location of the fourth transfer structure ZJ4 and overlaps with the fourth transfer structure ZJ4. In this overlapping area, the first touch line 221 is connected to a portion of the fourth transfer structure ZJ4 via multiple sixth vias. Another portion of the fourth transfer structure ZJ4 overlaps with the first connection pad LPJ1 extending along the second direction X, but no longer overlaps with the first touch line 221. This portion is connected to the first connection pad LPJ1 via multiple seventh vias, and then to the first touch lead 231 via the first connection pad LPJ1. Optionally, the first connection pad LPJ1 and the first touch lead 231 may be provided on the same layer, thereby eliminating structures such as vias for connection between the two.
[0302] 10 and 11A , the second touch wires 222 in the same second touch wire group Z2 are electrically connected to the same second touch lead 232 via the same second connection pad LJP2, and the second connection pad LJP2 extends along the first direction Y. Optionally, the second touch wires 222, the first connection pad LPJ1, and the first touch lead 231 can be provided on the same layer, thereby eliminating structures such as vias for connection between the three.
[0303] In an embodiment of the present disclosure, the seventh transfer structure ZJ7 extends along the second direction X. The first touch lead 231 includes a portion for connecting to the first touch wire group Z1 and a portion extending toward the touch binding terminal PAD2. The portion of the first touch lead 231 for connecting to the first touch wire group Z1 extends along the second direction X and overlaps with the seventh transfer structure ZJ7. In this overlapping region, a second opening H2 is provided in the seventh transfer structure ZJ7. The fourth transfer structure ZJ4 and the seventh transfer structure ZJ7 are formed simultaneously using the same patterning process. The fourth transfer structure ZJ4 is positioned within the second opening H2 in the seventh transfer structure ZJ7 and is insulated from the seventh transfer structure ZJ7. For example, within the second opening H2, the fourth transfer structure ZJ4 and the seventh transfer structure ZJ7 have a third spacing therebetween. The third spacing comprises a minimum exposure spacing that ensures insulation between the fourth transfer structure ZJ4 and the seventh transfer structure ZJ7.
[0304] Optionally, the second opening H2 is filled with a third insulating structure that insulates and separates the fourth transfer structure ZJ4 from the seventh transfer structure ZJ7 . The third insulating structure may be located in one or more insulating film layers on the side of the second transparent electrode layer DJ facing away from the base substrate 200 .
[0305] In this way, the first touch line group Z1 and the first touch lead 231 can be connected through the fourth connecting structure ZJ4. In addition, the embodiment of the present disclosure opens a second opening H2 on the first common signal line 211 to make room for the fourth connecting structure ZJ4. In this way, the position of the third common signal line 213 in the lead area YX can remain unchanged.
[0306] Referring to Figure 24A, in some specific embodiments, the first touch wire 221 is connected to the fourth transfer structure ZJ4 via a fifth transfer structure ZJ5. The fifth transfer structure ZJ5 is located in the first conductive layer DD1. The dimensions of the fifth transfer structure ZJ5 in the second direction X are substantially the same as the dimensions of the fourth transfer structure ZJ4 in the second direction X. The orthographic projection of the fifth transfer structure ZJ5 on the base substrate 200 is located within the orthographic projection of the second opening H2 on the base substrate 200. The display substrate includes multiple data lines DL, and the orthographic projection of at least one data line DL on the base substrate 200 is located between the orthographic projections of two adjacent second openings H2 on the base substrate 200.
[0307] For example, the size of the fifth adapter structure ZJ5 in the second direction X is greater than its size in the first direction Y. Referring to FIG. 25A , the fifth adapter structure ZJ5 is a strip-shaped structure extending along the second direction X. The fifth adapter structure ZJ5 can increase the connection area between the first touch wire 221 and the fourth adapter structure ZJ4.
[0308] In the embodiment of the present disclosure, two adjacent second openings H2 may mean that there is no other second opening H2 between the two second openings H2. Referring to Figure 25A, three data lines DL are provided between two adjacent second openings H2, the middle data line DL does not overlap with the second opening H2, and the data lines DL on the left and right sides partially overlap with the adjacent second openings H2 respectively. In this way, the data line DL can be located at most at the edge of the second opening H2, so as to maintain a sufficient distance from the fifth switching structure ZJ5. When the display substrate adopts the first stacking structure or the second stacking structure, the data line DL and the fifth switching structure ZJ5 are both located in the first conductive layer DD1, and the above method can avoid short circuit between the two.
[0309] FIG24C schematically shows a schematic diagram in a connection area according to an embodiment of the present disclosure.
[0310] With reference to Figures 24A to 24C , in some embodiments, the display substrate further includes a display bonding terminal PAD1 disposed in the bonding region Q2 and a data lead DLY connected between each data line DL and the display bonding terminal PAD1. The orthographic projection of the connection region LJQ between the data lines DL and the data leads DLY on the base substrate 200 defines a ninth figure, and the orthographic projection of the seventh line segment L7 on the base substrate 200 defines a tenth figure. The ninth figure is located on the side of the tenth figure facing away from the orthographic projection of the display region AA.
[0311] Optionally, the data lead DLY and the data line DL are arranged in different layers, for example, the data lead DLY and the gate line GL are arranged in the same layer. In the connection area LJQ between the data line DL and the data lead DLY, the data line DL and the corresponding data lead DLY can be connected through an eighth via. In an embodiment of the present disclosure, the data line DL extends along the first direction Y to the lead area YX, and after the data lead DLY is connected to the data line DL, it bends and extends toward the corresponding display binding terminal PAD1. After extending to the location of the display binding terminal PAD1, the data lead DLY is connected to the corresponding binding terminal on the display binding terminal PAD1.
[0312] 5, 6, and 24A, in some specific embodiments, the first common signal line 211 includes an eighth line segment L8 and a ninth line segment L9 located in the lead region YX. The eighth line segment L8 extends from the first side region Q31 toward the touch binding terminal PAD2, and the ninth line segment L9 extends from the second side region Q32 toward the touch binding terminal PAD2. The second common signal line 212 includes a tenth line segment L10 and an eleventh line segment L11 located in the lead region YX. The tenth line segment L10 extends from the first side region Q31 toward the touch binding terminal PAD2, and the eleventh line segment L11 extends from the second side region Q32 toward the touch binding terminal PAD2. The orthographic projections of the eighth line segment L8, the ninth line segment L9, the tenth line segment L10, and the eleventh line segment L11 on the base substrate 200 are located on the side of the ninth figure away from the display area AA.
[0313] 8 and 24A , the eighth line segment L8, the ninth line segment L9, the tenth line segment L10, and the eleventh line segment L11 extend in the second direction X. The eighth line segment L8, the ninth line segment L9, the tenth line segment L10, and the eleventh line segment L11 are disposed below the connection region LJQ to avoid shorting with the data line DL. Optionally, at least one of the eighth line segment L8, the ninth line segment L9, the tenth line segment L10, and the eleventh line segment L11 overlaps with the data lead line DLY.
[0314] Optionally, the display substrate further includes a plurality of second touch leads 232. Exemplarily, each second touch lead group Z2 is connected to the touch binding terminal PAD2 via a second touch lead 232. For example, one end of a second touch lead 232 is connected to a second touch lead group Z2 in the second side region Q32, and the other end extends from the second side region Q32 into the lead region YX. After the plurality of second touch leads 232 are aggregated to the side of the touch binding terminal PAD2 near the display area AA, they are connected to corresponding sensing terminals on the touch binding terminal PAD2. Exemplarily, in the lead region YX, the second touch lead 232 overlaps with the data lead DLY. The second touch lead 232 and the data lead DLY are arranged on different layers to avoid shorting with the data lead DLY. For example, the second touch lead 232 is arranged on the same layer as the data line DL, or the second touch lead 232 is arranged on the same layer as the second touch line 222.
[0315] In some specific embodiments, the tenth line segment L10 includes a second sub-line segment L101, a third sub-line segment L102, and a bent sub-line segment connected between the second sub-line segment L101 and the third sub-line segment L102. The second sub-line segment L101 and the third sub-line segment L102 both extend along the second direction X. The orthographic projection of at least one of the eighth line segment L8 and the ninth line segment L9 on the base substrate 200 is located between the orthographic projection of the second sub-line segment L101 on the base substrate 200 and the orthographic projection of the third sub-line segment L102 on the base substrate 200.
[0316] For example, on the display substrate, the second sub-segment L101 extends from left to right, the third sub-segment L102 extends from right to left, and at least one of the eighth and ninth sub-segments L8 and L9 is located between the second and third sub-segments L101 and L102. This allows the second and third sub-segments L101, L102, and eighth and ninth sub-segments L8 (and L9) to be closely arranged, thereby improving space utilization. Optionally, the ninth sub-segment L9 overlaps with the curved sub-segment. In the overlapping region, the ninth sub-segment L9 can be bridged by a transition structure located in the second transparent electrode layer DJ.
[0317] At least some embodiments of the present disclosure further provide a display panel, comprising the display substrate described above, having a display area AA and a peripheral area NA and related structures therein. For example, the display panel may be a liquid crystal display panel.
[0318] At least some embodiments of the present disclosure further provide a display device, which may include any device or product having a display function. For example, the display device may be a smartphone, a mobile phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (such as a head-mounted device, electronic clothing, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), a television, etc.
[0319] It should be understood that the display device according to the embodiment of the present disclosure has all the characteristics and advantages of the above-mentioned display substrate and display panel. For details, please refer to the above description and will not be repeated here.
[0320] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of this disclosure may be combined and / or coupled in various ways, even if such combinations and / or couplings are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure may be combined and / or coupled in various ways without departing from the spirit and teachings of this disclosure. All such combinations and / or couplings are intended to fall within the scope of this disclosure.
[0321] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.
Claims
1. A display substrate, wherein: The display substrate comprises a display area and a peripheral area at least partially surrounding the display area, wherein the peripheral area comprises: a binding area and a binding pair area arranged opposite to each other along a first direction, and two side edge areas arranged opposite to each other along a second direction, wherein the first direction intersects with the second direction, and the display substrate further comprises: substrate substrate; A second transparent electrode layer disposed on the base substrate; A first conductive layer and a second conductive layer are provided on the base substrate, wherein the first conductive layer and the second conductive layer are located between the base substrate and the second transparent electrode layer; A sub-pixel disposed on the base substrate and located in the display area, the sub-pixel comprising a second electrode located in the second transparent electrode layer; A third common signal line disposed on the base substrate and located in the peripheral area; M first touch line groups and N second touch line groups are arranged on the base substrate, the M first touch line groups are arranged along the second direction, and the N second touch line groups are arranged along the first direction; wherein the first touch line group includes at least one first touch line, which is arranged in parallel with a first touch line in the first touch line group, the second touch line group includes at least one second touch line, which is arranged in parallel with a second touch line in the second touch line group, the first touch line is located in the first conductive layer, the second touch line is located in the second conductive layer, and the first touch line and the second touch line are arranged with an insulation interval; Among them, in the outermost one of the M first touch line groups, a part of the first touch lines is located in the display area, and another part of the first touch lines is located in the side area, and the first touch lines and the third common signal lines are configured to adopt one of the following settings: The first touch control line and the third common signal line are located in the side area in the same layer and are spaced apart; The first touch control line and the third common signal line are arranged in different layers in the part of the side area; Both M and N are positive integers.
2. The display substrate according to claim 1, wherein: The first touch control line and the third common signal line are arranged in the same layer as a part of the side area; The orthographic projection of the portion of the third common signal line located in the side area on the base substrate defines a first pattern; In the outermost one of the M first touch line groups, the orthographic projection of the first touch line located in the display area on the base substrate defines a second figure, the orthographic projection of the first touch line located in the side area on the base substrate defines a third figure, and the first figure is located between the second figure and the third figure.
3. The display substrate according to claim 1, wherein: In the outermost one of the M first touch line groups, the first touch lines located in the display area have a first wiring spacing, and the first touch lines located in the side area have a second wiring spacing; The first wiring spacing is greater than or equal to the second wiring spacing.
4. The display substrate according to claim 3, wherein: Among the M first touch line groups, except for the outermost first touch line group, the first touch lines in other first touch line groups have a third wiring spacing; The third wiring spacing is equal to the first wiring spacing.
5. The display substrate according to claim 1, wherein: Among the M first touch wire groups, the outermost first touch wire group has the same resistance as the other first touch wire groups.
6. The display substrate according to claim 1, wherein: The first touch control line and the third common signal line are arranged in different layers in the part of the side area; The orthographic projection of the third common signal line on the base substrate defines a first pattern; In the outermost one of the M first touch line groups, the orthographic projection of the first touch line located in the display area on the base substrate defines a second figure, and the orthographic projection of the first touch line located in the side area on the base substrate defines a fourth figure, and the first figure overlaps with the fourth figure.
7. The display substrate according to claim 1, wherein: The two side regions include a first side region and a second side region, and the display substrate further includes: a first common signal line and a second common signal line disposed on the base substrate and located in the peripheral region, and a touch binding terminal disposed on the base substrate and located in the binding region; The first common signal line and the second common signal line are arranged with insulation intervals, and the first The common signal line and the second common signal line are respectively connected to the touch binding terminal; In the binding pair area, the orthographic projection of the first common signal line on the base substrate is located on a side where the orthographic projection of the second common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate; In the side area, the orthographic projection of the second common signal line on the base substrate is located on a side where the orthographic projection of the first common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate; The first touch line group is connected to the first common signal line in the binding pair area, and the second touch line group is connected to the second common signal line in the first side area.
8. The display substrate according to claim 7, wherein: The peripheral area further comprises: a plurality of corner areas, at least one of the corner areas being located between the binding pair area and the side area; In at least one corner region, the first common signal line includes a first extension portion, a second extension portion, and a first connection portion connected between the first extension portion and the second extension portion, and the second common signal line includes a third extension portion, a fourth extension portion, and a second connection portion connected between the third extension portion and the fourth extension portion; The first extension portion and the third extension portion both extend along the second direction and are arranged in the same layer. The second extension portion and the fourth extension portion both extend along the first direction and are arranged in the same layer. The first connecting portion is located in the second transparent electrode layer, which extends along the second direction and crosses the fourth extension portion.
9. The display substrate according to claim 7, wherein: The display substrate further includes a data line disposed on the base substrate, the second common signal line includes a first sub-line segment located in the first side region, the first sub-line segment and the data line are disposed in the same layer, and the second touch line and the data line are disposed in different layers; The orthographic projection of the portion of the second touch line group located in the first side area on the base substrate overlaps with the orthographic projection of the first sub-line segment on the base substrate, and in the overlapping area, the second touch line group is connected to the first sub-line segment via a second switching structure; The second transfer structure is located in the second transparent electrode layer, and the second transfer structures connected to different second touch line groups are arranged at intervals, or the second transfer structures connected to different second touch line groups are arranged at intervals. The second transfer structure is formed as an integral structure.
10. The display substrate according to claim 7, wherein: The display substrate further includes a data line disposed on the base substrate, the second common signal line includes a first sub-line segment located in the first side region, the first sub-line segment and the data line are disposed in the same layer, and the second touch line and the data line are disposed in different layers; The orthographic projection of the portion of the second touch line group located in the first side area on the base substrate does not overlap with the orthographic projection of the first sub-line segment on the base substrate, and multiple second touch line groups are connected to the first sub-line segment through the same third adapter structure.
11. The display substrate according to claim 10, wherein: In the second direction, a distance between the second touch line group and the second common signal line is less than or equal to 3500 μm.
12. The display substrate according to claim 7, wherein: The display substrate further comprises: Data lines and gate lines are arranged on the substrate; A shift register unit disposed on the base substrate and located in the side area, wherein the orthographic projection of the shift register unit on the base substrate is located on a side of the orthographic projection of the second common signal line on the base substrate away from the orthographic projection of the display area on the base substrate; A first signal line is arranged on the base substrate and connected to the shift register unit, the first signal line is arranged on the same layer as at least one of the data line and the gate line, and the orthographic projection of the first signal line on the base substrate is located on a side of the orthographic projection of the shift register unit on the base substrate away from the orthographic projection of the second common signal line on the base substrate.
13. The display substrate according to claim 7, wherein: The display substrate further comprises: Data lines and gate lines are arranged on the substrate; A shift register unit disposed on the base substrate and located in the side area, wherein the orthographic projection of the shift register unit on the base substrate is located on a side of the orthographic projection of the second common signal line on the base substrate close to the orthographic projection of the display area on the base substrate; The second touch line is arranged in a different layer from the data line and the gate line, and the orthographic projection of at least one of the second touch lines on the base substrate is aligned with the orthographic projection of the shift register unit on the base substrate. overlap.
14. The display substrate according to claim 13, wherein: An orthographic projection of the first touch line on the base substrate does not overlap with an orthographic projection of the shift register unit on the base substrate.
15. The display substrate according to claim 7, wherein: The display substrate further comprises: Data lines and gate lines are arranged on the substrate; A shift register unit disposed on the base substrate and located in the side area, wherein the orthographic projection of the shift register unit on the base substrate is located on a side of the orthographic projection of the second common signal line on the base substrate close to the orthographic projection of the display area on the base substrate; The first touch line and the second touch line are both arranged in different layers from the data line and the gate line; The orthographic projection of at least one of the second touch lines on the base substrate overlaps with the orthographic projection of the shift register unit on the base substrate, and the orthographic projection of at least one of the first touch lines on the base substrate overlaps with the orthographic projection of the shift register unit on the base substrate.
16. The display substrate according to claim 7, wherein: The display substrate comprises: A plurality of shift register units are arranged on the base substrate and located in the side area, wherein the orthographic projection of the shift register unit on the base substrate is located on a side of the orthographic projection of the second common signal line on the base substrate close to the orthographic projection of the display area on the base substrate; The plurality of shift register units are arranged along the first direction, a first gap is provided between two adjacent shift register units, and an orthographic projection of at least one second touch line on the base substrate passes through an orthographic projection of the first gap on the base substrate.
17. The display substrate according to claim 7, wherein: The orthographic projections of the M first touch-control wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal lines on the base substrate at least partially surround the seventh figure; The orthographic projections of the N second touch-control line groups on the base substrate define an eighth figure, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth figure; The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate, and any one of the first common signal line and the second common signal line The orthographic projection of the third common signal line on the base substrate is located on a side where the orthographic projection of the third common signal line on the base substrate is away from the orthographic projection of the display area on the base substrate.
18. The display substrate according to claim 7, wherein: The orthographic projections of the M first touch-control wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal lines on the base substrate at least partially surround the seventh figure; The orthographic projections of the N second touch-control line groups on the base substrate define an eighth figure, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth figure; The orthographic projection of the third common signal line on the substrate at least partially surrounds the orthographic projection of the display area on the substrate, and the orthographic projection of any one of the first common signal line and the second common signal line on the substrate is located on a side where the orthographic projection of the third common signal line on the substrate is close to the orthographic projection of the display area on the substrate.
19. The display substrate according to claim 7, wherein: The orthographic projections of the M first touch-control wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal lines on the base substrate at least partially surround the seventh figure; The orthographic projections of the N second touch-control line groups on the base substrate define an eighth figure, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth figure; The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate; In at least one of the binding area and the binding pair area, an orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side of an orthographic projection of the third common signal line on the base substrate away from an orthographic projection of the display area on the base substrate; In the side area, the orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side where the orthographic projection of the third common signal line on the base substrate is close to the orthographic projection of the display area on the base substrate.
20. The display substrate according to claim 7, wherein: The orthographic projections of the M first touch-control wire groups on the base substrate define a seventh figure, and the orthographic projections of the first common signal lines on the base substrate at least partially surround the seventh figure; The orthographic projections of the N second touch-control line groups on the base substrate define an eighth figure, and the orthographic projections of the second common signal line on the base substrate at least partially surround the eighth figure; The orthographic projection of the third common signal line on the base substrate at least partially surrounds the orthographic projection of the display area on the base substrate; In at least one of the binding area and the binding pair area, an orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side where an orthographic projection of the third common signal line on the base substrate is close to an orthographic projection of the display area on the base substrate; In the side area, the orthographic projection of any one of the first common signal line and the second common signal line on the base substrate is located on a side where the orthographic projection of the third common signal line on the base substrate is away from the orthographic projection of the display area on the base substrate.
21. The display substrate according to claim 7, wherein: The display substrate further comprises: A gate line disposed on the substrate; A common electrode line disposed on the base substrate and located in the display area, wherein the common electrode line is connected to the second electrode in the sub-pixel; The third common signal line includes a fifth line segment located in the binding pair area, the fifth line segment is connected to the common electrode line through a sixth switching structure, and the sixth switching structure is located in the second transparent electrode layer; The first common signal line includes a first line segment located in the binding pair area, the first line segment and the gate line are arranged in the same layer, and the first touch line and the gate line are arranged in different layers; Wherein, a first opening is provided on the sixth adapter structure, and an orthographic projection of a portion of the first touch wire group located in the binding pair area on the base substrate overlaps with an orthographic projection of the first line segment on the base substrate, and, in the overlapping area, the first touch wire group is connected to the first line segment through a first adapter structure, the first adapter structure is located in the second transparent electrode layer, and the orthographic projection of the first adapter structure on the base substrate is located within the orthographic projection of the first opening on the base substrate.
22. The display substrate according to claim 7, wherein: The display substrate further comprises: The display substrate further comprises data lines and gate lines arranged on the base substrate; The first common signal line includes a first line segment located in the binding pair area, and the first line segment is connected to The first touch line is arranged in the same layer as the data line and the gate line, and is arranged in a different layer; In the binding pair area, the first touch wire group is directly connected to the first line segment.
23. The display substrate according to claim 7, wherein: The peripheral area further includes a lead area located between the display area and the binding area, and the display substrate further includes a data line, a second display common signal line and a first touch lead line arranged on the base substrate; The third common signal line includes a seventh line segment located in the lead area, the seventh line segment and the second display common signal line have substantially the same extension direction, the orthographic projection of the seventh line segment on the base substrate is located on a side of the orthographic projection of the second display common signal line on the base substrate close to the display area, the seventh line segment is connected to the second display common signal line via a seventh adapter structure, and the seventh adapter structure is located in the second transparent electrode layer; In the lead area, the first touch line is connected to the touch binding end through a first touch lead, the first touch line and the data line are arranged in the same layer, and the first touch lead and the data line are arranged in different layers; Among them, a second opening is set on the seventh transfer structure, the first touch line is connected to the first touch lead through a fourth transfer structure, the fourth transfer structure is located in the second transparent electrode layer, and the orthographic projection of the fourth transfer structure on the base substrate is located within the orthographic projection of the second opening on the base substrate.
24. The display substrate according to claim 23, wherein: The display substrate comprises a plurality of data lines, and an orthographic projection of at least one of the data lines on the base substrate is located between orthographic projections of two adjacent second openings on the base substrate.
25. The display substrate according to claim 24, wherein: The display substrate further comprises a display binding end arranged in the binding area and a data lead connected between each data line and the display binding end; The orthographic projection of the connection area between the data line and the data lead on the base substrate defines a ninth figure, and the orthographic projection of the seventh line segment on the base substrate defines a tenth figure; The ninth figure is located on a side of the tenth figure that is away from the orthographic projection of the display area.
26. The display substrate according to claim 24, wherein: The first common signal line includes an eighth line segment and a ninth line segment located in the lead area, the eighth line segment extends from the first side area toward the touch binding end, and the ninth line segment extends from the second side area toward the touch binding end; The second common signal line includes a tenth line segment and an eleventh line segment located in the lead area, the tenth line segment extends from the first side area toward the touch binding end, and the eleventh line segment extends from the second side area toward the touch binding end; The orthographic projections of the eighth line segment, the ninth line segment, the tenth line segment, and the eleventh line segment on the base substrate are located on a side of the ninth figure away from the display area.
27. The display substrate according to claim 26, wherein: The tenth line segment includes a second sub-line segment, a third sub-line segment, and a bent sub-line segment connected between the second sub-line segment and the third sub-line segment, and the second sub-line segment and the third sub-line segment both extend along the second direction; The orthographic projection of at least one of the eighth line segment and the ninth line segment on the base substrate is located between the orthographic projection of the second sub-line segment on the base substrate and the orthographic projection of the third sub-line segment on the base substrate.
28. A display device, wherein: Comprising the display substrate as claimed in any one of claims 1 to 27.