CN114003143B

CN114003143B - Touch display panel and touch display device

Info

Publication number: CN114003143B
Application number: CN202111266441.2A
Authority: CN
Inventors: 陈利峰; 李璐; 胡耀
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2024-06-18
Anticipated expiration: 2041-10-28
Also published as: CN114003143A

Abstract

A touch display panel and a touch display device, wherein the touch display panel includes: display panel and touch panel, display panel includes: a substrate comprising a display area and a non-display area at least partially surrounding the display area, the display area comprising a fan-out area; the plurality of data lines are at least positioned in the display area and are electrically connected with the plurality of sub-pixels, and at least partially penetrate through the fan-out area and are electrically connected with the plurality of bonding pads; the touch panel includes: the touch screen comprises a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein orthographic projections of the first touch structures and the second touch structures on a substrate are at least positioned in a display area; the first touch control wires and the second touch control wires are at least positioned in the non-display area, and are connected with the first touch control structures; at least part of the first touch control wires and the second touch control wires pass through the fan-out area.

Description

Touch display panel and touch display device

Technical Field

The disclosure relates to the field of display technology, and in particular, to a touch display panel and a touch display device.

Background

In recent years, flat panel displays, such as thin film transistor Liquid crystal display panels (Thin Film Transistor-Liquid CRYSTAL DISPLAY, TFT-LCD) and active matrix organic light emitting Diode display panels (Active Matrix Organic LIGHT EMITTING Diode, AMOLED), have been widely used in electronic products such as televisions and cellular phones because of their light weight, thin thickness, and low power consumption. With the development of display technology, high-resolution and narrow-frame touch display panels are becoming a trend.

Disclosure of Invention

The following is a summary of the subject matter of the detailed description of the present disclosure. This summary is not intended to limit the scope of the claims.

In a first aspect, the present disclosure provides a touch display panel, including: a display panel and a touch panel; the touch panel is positioned on the light emergent side of the display panel or on the backlight side opposite to the light emergent side;

The display panel includes:

a substrate comprising a display area and a non-display area at least partially surrounding the display area, the display area comprising a fan-out area;

A plurality of sub-pixels located in the display area;

A plurality of bonding pads located in the non-display area;

The plurality of data lines are at least positioned in the display area and are electrically connected with the plurality of sub-pixels, and at least partially penetrate through the fan-out area and are electrically connected with the plurality of bonding pads;

The touch panel includes:

The display device comprises a substrate, a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein orthographic projections of the first touch structures and the second touch structures on the substrate are at least positioned in a display area, the first direction and the second direction are intersected, and the first direction is the extending direction of the data line;

The first touch control wires and the second touch control wires are at least positioned in the non-display area, the first touch control wires are connected with the first touch control structures, and the second touch control wires are connected with the second touch control structures;

At least part of the first touch wires and the second touch wires pass through the fan-out area.

In some possible implementations, the plurality of first touch traces and the plurality of second touch traces are located on two sides of the plurality of data lines in the fan-out region.

In some possible implementations, the plurality of first touch traces and the plurality of second touch traces are symmetrically arranged along a center line of the display area, and two sides of the center line of the display area are a first side and a second side respectively;

The plurality of first touch control wires are positioned on the first side, and the plurality of second touch control wires are positioned on the second side;

Or a part of the first touch wires in the plurality of first touch wires are located at the first side, another part of the first touch wires in the plurality of first touch wires are located at the second side, a part of the second touch wires in the plurality of second touch wires are located at the first side, and another part of the second touch wires in the plurality of second touch wires are located at the second side.

In some possible implementations, the plurality of first touch structures are arranged along the second direction, and the plurality of second touch structures are arranged along the first direction; the first touch structure includes: the first touch control electrodes and the first connecting electrodes, and the second touch control structure comprises: a plurality of second touch electrodes and a plurality of second connection electrodes;

A plurality of virtual areas are defined in the first touch electrode and the second touch electrode;

The touch panel further includes: a virtual structure located within the virtual area, the virtual structure comprising: a plurality of first grid patterns; the first mesh pattern is a polygon composed of first metal lines.

In some possible implementations, the touch panel includes: the touch control device comprises a buffer layer, a bridging layer, a first insulating layer, a touch control layer and a protective layer which are sequentially stacked;

The touch layer includes: the first touch electrode, the second touch electrode, the virtual structure and one of the first connecting electrode and the second connecting electrode; the bridge layer includes: the first connection electrode and the other connection electrode in the second connection electrode section.

In some possible implementations, the first touch trace and the second touch trace each include: the first touch control line segment, the second touch control line segment and the third touch control line segment; the first touch-control line segment and the third touch-control line segment extend along the first direction, and the second touch-control line segment extends along the second direction;

The first touch control line segment is positioned in the non-display area;

the second touch control wire section is at least positioned in the fan-out area and is connected with one end of the first touch control wire section;

the third touch control line segment is at least located in the fan-out area and connected with one end of the second touch control line segment.

In some possible implementations, the second touch trace segment is disposed at the same layer as the third touch trace segment and at a different layer from the first touch trace segment.

In some possible implementations, the touch layer further includes: the first touch control line segment; the second touch control line segment is positioned at one side of the first touch control line segment, which is close to the substrate;

the first insulating layer is provided with a via hole, and the first touch control wire section is connected with the second touch control wire section through the via hole.

In some possible implementations, the first touch trace and the second touch trace each include: the fourth touch control line segment and the touch control connecting part; the fourth touch control line segment extends along the first direction;

the fourth touch control line segment is positioned in the non-display area;

the touch connection part is connected with one end of the fourth touch line segment and comprises: at least one dummy structure located in the fan-out area.

In some possible implementations, the virtual structure in the touch connection portion includes: a first virtual structure and a plurality of second virtual structures; the first virtual structure is located in the fan-out area and is close to the non-display area, and the second virtual structure is located in the fan-out area and is located at one side, away from the plurality of bonding pads, of the first virtual structure.

In some possible implementations, the touch panel further includes: at least one virtual connection;

the virtual connection part is arranged to connect a plurality of virtual structures, and the plurality of virtual structures are connected with the same touch control wiring.

In some possible implementations, the touch layer further includes: the fourth touch control line segment;

The bridge layer further comprises: a virtual connection part;

the first insulating layer is provided with a via hole exposing the virtual connecting part, and adjacent virtual structures in the touch connecting part connected with the same touch wiring are connected with the virtual connecting part through the via hole.

In some possible implementations, the data line includes: a first data line segment, a second data line segment, and a third data line segment; the first data line segment and the third data line segment extend along the first direction, and the second data line segment extends along the second direction;

the first data line segment is at least positioned in the fan-out area and is electrically connected with the sub-pixels;

The second data line segment is positioned in the fan-out area and connected with the first data line segment;

the third data line segment is at least located in the fan-out area and connected to the second data line segment.

In some possible implementations, the second data line segment and the third data line segment are arranged in layers;

The second data line segment is positioned on one side of the first data line segment away from the substrate.

In some possible implementations, the first data line segment includes: the first data segment and the second data segment are connected with each other and arranged in different layers, and the first data segment is positioned at one side of the second data segment, which is away from the second data line segment;

the second data line segment is connected to the second data segment.

In some possible implementations, the display panel further includes:

A plurality of first power lines at least located in the display area and extending along the first direction;

the second power line is positioned at least in the non-display area;

The first power line includes: the first power supply section and the second power supply section are connected with each other and arranged in different layers; the first power supply section and the first data section are arranged in the same layer, and the second power supply section, the second data section and the second power line are arranged in the same layer.

In some possible implementations, the display panel further includes: a connection electrode located in the display area; orthographic projection of the connecting electrode on the substrate is not overlapped with the fan-out area;

the connecting electrode and the second data line segment are arranged on the same layer, and are connected with the second power line or at least one first power line.

In some possible implementations, a length of the connection electrode along the second direction is less than or equal to a length of the display area along the second direction;

the length of the connection electrode along the first direction is greater than half of the length of the display area along the first direction.

In some possible implementations, the connection electrode includes: and a plurality of second mesh patterns, the second mesh patterns being polygons formed of second metal lines.

In a second aspect, the present disclosure further provides a touch display device, including: the touch display panel is provided.

Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

Drawings

The accompanying drawings are included to provide an understanding of the technical aspects of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present disclosure and together with the embodiments of the disclosure, not to limit the technical aspects of the present disclosure.

Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the disclosure;

Fig. 2 is a cross-sectional view of a touch display panel according to an embodiment of the disclosure;

FIG. 3 is an enlarged view of region R1 of FIG. 1;

fig. 4 is a schematic structural diagram of a touch panel according to an exemplary embodiment;

FIG. 5 is a schematic view of the region R2 in FIG. 4;

FIGS. 6-1 to 6-5 are schematic structural views of several metal grids;

FIG. 7 is a cross-sectional view of the touch panel provided in FIG. 4 along the direction A-A;

Fig. 8 is a schematic structural diagram of a first touch trace or a second touch trace according to an exemplary embodiment;

fig. 9 is a schematic structural diagram of a touch display panel according to an exemplary embodiment;

FIG. 10 is a cross-sectional view taken along the direction B-B of FIG. 9;

FIG. 11 is a schematic plan view of a display panel;

FIG. 12 is a schematic cross-sectional view of a display panel;

fig. 13 is a schematic diagram of a data line according to an exemplary embodiment;

fig. 14 is a schematic diagram of a data line according to another exemplary embodiment;

FIG. 15 is a cross-sectional view taken along the direction C-C of FIG. 13;

Fig. 16 is a schematic structural view of a display panel according to an exemplary embodiment;

FIG. 17 is a cross-sectional view taken along the direction D-D of FIG. 16;

FIG. 18 is a schematic diagram of a display panel provided by an exemplary embodiment;

FIG. 19 is an enlarged view of a portion of FIG. 18;

Fig. 20 is a schematic view showing a partial structure of a display panel according to still another exemplary embodiment;

fig. 21 is a schematic view showing a partial structure of a display panel according to still another exemplary embodiment;

Fig. 22 is a schematic structural diagram of a touch display device according to an embodiment of the disclosure.

Detailed Description

In the drawings, the size of each constituent element, the thickness of a layer, or a region may be exaggerated for clarity. Accordingly, one aspect of the present disclosure is not necessarily limited to this dimension, and the shapes and sizes of the various components in the drawings do not reflect actual proportions. Further, the drawings schematically show ideal examples, and one mode of the present disclosure is not limited to the shapes or numerical values shown in the drawings, and the like.

The ordinal numbers of "first", "second", "third", etc. in the present specification are provided to avoid mixing of constituent elements, and are not intended to be limited in number.

In the present specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are used to describe positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus are not to be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the respective constituent elements are described. Therefore, the present invention is not limited to the words described in the specification, and may be appropriately replaced according to circumstances.

In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intermediate members, or may be in communication with the interior of two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

In this specification, a transistor means an element including at least three terminals of a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (a drain electrode terminal, a drain region, or a drain electrode) and a source electrode (a source electrode terminal, a source region, or a source electrode), and a current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, a channel region refers to a region through which current mainly flows.

In this specification, the first electrode may be a drain electrode, the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. In the case of using a transistor having opposite polarity, or in the case of a change in the direction of current during circuit operation, the functions of the "source electrode" and the "drain electrode" may be interchanged. Therefore, in this specification, "source electrode" and "drain electrode" may be exchanged with each other.

In this specification, "electrically connected" includes a case where constituent elements are connected together by an element having some electric action. The "element having a certain electric action" is not particularly limited as long as it can transmit and receive an electric signal between the constituent elements connected. Examples of the "element having some electric action" include not only an electrode and a wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, other elements having various functions, and the like.

In the present specification, "parallel" means a state in which two straight lines form an angle of-10 ° or more and 10 ° or less, and therefore, a state in which the angle is-5 ° or more and 5 ° or less is also included. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and thus includes a state in which the angle is 85 ° or more and 95 ° or less.

In this specification, "film" and "layer" may be exchanged with each other. For example, the "conductive layer" may be sometimes replaced with a "conductive film". In the same manner, the "insulating film" may be replaced with the "insulating layer" in some cases.

The term "about" in this disclosure refers to values that are not strictly limited to the limits, but are allowed to fall within the limits of the process and measurement errors.

In a display panel, the touch display panel comprises a display area and a non-display area, and touch wiring in the touch display panel is located in the non-display area and extends from two sides of the display area to an area of a third side of the display area, so that a frame of the touch display panel is larger and a narrow frame cannot be realized.

Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the disclosure, fig. 2 is a cross-sectional view of the touch display panel according to an embodiment of the disclosure, fig. 3 is an enlarged view of a region R1 in fig. 1, and fig. 4 is a schematic structural diagram of the touch display panel according to an exemplary embodiment. As shown in fig. 1 to 4, the touch display panel may include: a display panel 100 and a touch panel 200. The display panel may include: a substrate comprising a display area AA and a non-display area AA' at least partially surrounding the display area AA, the display area AA comprising a fan-out area; a plurality of sub-pixels located in the display area AA; a plurality of pads 300 located in the non-display area; the plurality of data lines D are at least located in the display area AA and electrically connected to the plurality of sub-pixels, and the plurality of data lines D at least partially pass through the fan-out area and electrically connected to the plurality of pads 300.

In one exemplary embodiment, as shown in fig. 1 and 4, the touch panel may include: the display device comprises a plurality of first touch structures 10 extending along a first direction and a plurality of second touch structures 20 extending along a second direction, wherein orthographic projections of the first touch structures 10 and the second touch structures 20 on a substrate are at least positioned in a display area AA, the first direction and the second direction are intersected, and the first direction is the extending direction of a data line. The first touch wires 10 and the second touch wires 20 are at least positioned in the non-display area, the first touch wires 31 are connected with the first touch structures 10, and the second touch wires 32 are connected with the second touch structures 20; at least a portion of the first touch traces 31 and the second touch traces 32 pass through the fan-out area.

In one exemplary embodiment, the touch panel 200 may be located at a light emitting side of the display panel 100 or a backlight side disposed opposite to the light emitting side. Fig. 2 illustrates an example in which the touch panel 200 is positioned on the light emitting side of the display panel 100.

In one exemplary embodiment, the display panel may be a Liquid Crystal Display (LCD) panel, or may be an Organic Light Emitting Diode (OLED) display panel, or may be a Plasma Display Panel (PDP), or may be an electrophoretic display (EPD) panel, or may be a quantum dot light emitting diode (QLED) display panel.

In one exemplary embodiment, as shown in fig. 3, the non-display area may include: the display device comprises a bending region, a second fan-out region and a binding region, wherein the bending region is located on one side of the display region, the second fan-out region is located on one side of the bending region away from the display region, and the binding region is located on one side of the bending region away from the display region.

In one exemplary embodiment, the plurality of pads 300 may be located in the bonding area.

In one exemplary embodiment, the display panel may further include: touch signal trace TL. The touch signal trace TL passes through the bending region and the second fan-out region. The touch signal trace may be connected with the first touch trace and the second touch trace.

In one exemplary embodiment, as shown in fig. 3, the display panel may further include: the data wire DL is located in the second fan-out area and the bending area. The data line D is connected to the plurality of pads through the data trace DL.

In an exemplary embodiment, the touch signal traces are located at two sides of the plurality of data traces DL.

In an exemplary embodiment, the first touch structure may be a driving electrode (Tx), the second touch structure may be a sensing electrode (Rx), or the first touch structure may be a sensing electrode (Rx), and the second touch structure may be a driving electrode (Tx), which is not limited in this disclosure.

In one exemplary embodiment, the number of the first touch structures and the second touch structures may be set according to touch accuracy.

In an exemplary embodiment, the different first touch traces are connected to the different first touch structures. The different second touch control wirings are connected with different second touch control structures.

In an exemplary embodiment, the first touch trace may be connected to at least one end of the first touch structure. In an exemplary embodiment, the second touch trace may be connected to at least one end of the second touch structure.

The embodiment of the disclosure provides a touch display panel, which includes: a display panel and a touch panel; the touch panel is positioned on the light emitting side of the display panel or on the backlight side opposite to the light emitting side; the display panel includes: a substrate comprising a display area and a non-display area at least partially surrounding the display area, the display area comprising a fan-out area; a plurality of sub-pixels located in the display area; a plurality of bonding pads located in the non-display area; the plurality of data lines are at least positioned in the display area and are electrically connected with the plurality of sub-pixels, and at least partially penetrate through the fan-out area and are electrically connected with the plurality of bonding pads; the touch panel includes: the touch display device comprises a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein orthographic projections of the first touch structures and the second touch structures on a substrate are at least positioned in a display area, the first direction and the second direction are intersected, and the first direction is the extending direction of a data line; the first touch control wires and the second touch control wires are at least positioned in the non-display area, and are connected with the first touch control structures; at least part of the first touch control wires and the second touch control wires pass through the fan-out area. According to the touch display panel, the lower frame of the touch display panel can be reduced through at least part of the first touch routing lines and the second touch routing lines penetrating through the fan-out area, and the narrow frame of the touch display panel is realized.

In an exemplary embodiment, as shown in fig. 3, the plurality of first touch traces 31 and the plurality of second touch traces 32 are located at two sides of the plurality of data lines D in the fan-out area.

In an exemplary embodiment, the plurality of first touch traces 31 and the plurality of second touch traces 32 are symmetrically disposed along a center line ML of the display area. Wherein, two sides of the central line ML of the display area are respectively a first side and a second side.

In an exemplary embodiment, the plurality of first touch traces may be located on the first side, the plurality of second touch traces may be located on the second side, or a portion of the first touch traces in the plurality of first touch traces may be located on the first side, another portion of the first touch traces in the plurality of first touch traces may be located on the second side, a portion of the second touch traces in the plurality of second touch traces may be located on the first side, and another portion of the second touch traces in the plurality of second touch traces may be located on the second side. Fig. 1 and fig. 3 illustrate that a portion of the first touch traces of the plurality of first touch traces are located on the first side, another portion of the first touch traces of the plurality of first touch traces are located on the second side, a portion of the second touch traces of the plurality of second touch traces are located on the first side, and another portion of the second touch traces of the plurality of second touch traces are located on the second side.

In an exemplary embodiment, fig. 5 is an enlarged view of the region R2 in fig. 4, and as shown in fig. 4 and 5, the plurality of first touch structures 10 are arranged along the second direction, and the plurality of second touch structures 20 are arranged along the first direction. The first touch structure 10 may include: the plurality of first touch electrodes 11 and the plurality of first connection electrodes 12, the second touch structure 20 may include: a plurality of second touch electrodes 21 and a plurality of second connection electrodes 22.

In one exemplary embodiment, a plurality of virtual areas are defined within the first and second touch electrodes 11 and 21. For example, as shown in fig. 5, when the first and second touch electrodes 11 and 21 are diamond-shaped, the first and second touch electrodes 11 and 21 may each include: a plurality of first electrodes E1 extending in the third direction and a plurality of second electrodes E2 extending in the fourth direction. The virtual area is defined between the plurality of first electrodes and the plurality of second electrodes. Fig. 5 illustrates that the first touch electrode 11 and the second touch electrode 21 are diamond-shaped, for example, the first touch electrode and the second touch electrode may also be triangular, where the first touch electrode and the second touch electrode may include: three electrodes extending in three different directions, the virtual area being defined by the three electrodes. The first touch electrode and the second touch electrode may also have other shapes, which are not limited in this disclosure.

In an exemplary embodiment, the touch panel further includes: a virtual structure 40 located within the virtual area. Wherein the virtual structure 40 may include: a plurality of first grid patterns; the first mesh pattern is a polygon composed of first metal lines.

In an exemplary embodiment, the orthographic projection of the first metal line onto the substrate includes an orthographic projection of at least one sub-pixel onto the substrate. The area surrounded by the orthographic projection of the first metal line on the substrate comprises the orthographic projection of at least one sub-pixel on the substrate, so that the touch panel can be ensured not to influence the display effect of the display panel.

In an exemplary embodiment, as shown in fig. 5, the first touch electrode 11 and the second touch electrode 21 each include: a plurality of first mesh patterns, wherein the first mesh patterns are polygons composed of first metal lines.

In an exemplary embodiment, FIGS. 6-1 through 6-5 are schematic structural views of several metal grids. As shown in fig. 6, the metal mesh includes a plurality of first mesh patterns, which are polygons made up of first metal lines. Or, the metal grid is formed by repeatedly and continuously arranging and splicing grid patterns. In an exemplary embodiment, the shape of the mesh pattern surrounded by the first metal lines may be diamond-shaped, as shown in fig. 6-1. Or the shape of the grid pattern surrounded by the first metal lines may be triangular as shown in fig. 6-2. Or the shape of the grid pattern surrounded by the first metal lines may be rectangular as shown in fig. 6-3. Or the shape of the grid pattern surrounded by the first metal lines may be hexagonal as shown in fig. 6-4. Or the shape of the mesh pattern surrounded by the first metal lines may be a combination of various shapes, such as a combination of pentagons and hexagons, as shown in fig. 6-5. Or the shape of the mesh pattern surrounded by the first metal lines may include any one or more of triangle, square, rectangle, diamond, trapezoid, pentagon, and hexagon. Illustratively, the grid pattern surrounded by the first metal lines may be regular or irregular in shape, and the sides of the grid pattern may be straight or curved, which is not limited herein. Fig. 5 is an illustration of a grid pattern surrounded by first metal lines, taking as an example a rectangular shape.

In an exemplary embodiment, the first touch electrode and the second touch electrode are disposed in the same layer, and the first connection electrode or the second connection electrode is disposed in the same layer as the first touch electrode. Fig. 4 illustrates an example in which the second connection electrode and the first touch electrode are disposed on the same layer. In an exemplary embodiment, the plurality of first touch electrodes and the plurality of second touch electrodes may be formed through the same patterning process. The first connecting electrode and the second connecting electrode are arranged in different layers.

In an exemplary embodiment, the first touch electrode and the second touch electrode can be arranged on the same layer and made of the same material, and the patterns are the same, so that the problems of poor shadow elimination and optical moire caused by mutual interference generated by differences of line widths and the like of metal grids on different layers can be solved, and a good shadow elimination effect is achieved.

In one exemplary embodiment, the plurality of first touch electrodes and the plurality of second touch electrodes are disposed on the same layer as the plurality of first connection electrodes. The first touch electrode and the first connection electrode may be an integral structure connected to each other, or the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of second connection electrodes may be arranged on the same layer, and the second touch electrodes and the second connection electrodes may be an integral structure connected to each other.

In an exemplary embodiment, the first touch electrode and the second touch electrode may have a rhombus shape, for example, may be a regular rhombus, or a rhombus with a horizontal length, or a rhombus with a longitudinal length. Illustratively, the first and second touch electrodes may have any one or more of a triangle, square, trapezoid, parallelogram, pentagon, hexagon, and other polygons, which are not limited herein. Fig. 4 and fig. 5 illustrate an example in which the first touch electrode and the second touch electrode are diamond-shaped.

In an exemplary embodiment, the first touch trace and the first touch electrode may be an integrally formed structure. The second touch trace and the second touch electrode may be an integrally formed structure.

In an exemplary embodiment, taking the first touch structure as a driving electrode, taking the second touch structure as an induction electrode as an example, when the touch panel works, driving signals are input to the first touch structure, each second touch structure sequentially receives signals, driving signals are input to the second first touch structure, each second touch structure sequentially receives signals, and so on until driving signals are input to the last first touch structure. The touch of the human finger can cause the mutual capacitance of the first touch structure and the second touch structure to change, and the position of the finger is judged according to the mutual capacitance change of the first touch structure and the second touch structure.

In an exemplary embodiment, fig. 7 is a cross-sectional view of the touch panel provided in fig. 4 along A-A, and as shown in fig. 7, the touch panel may include: the buffer layer 51, the bridge layer 52, the insulating layer 53, the touch layer 54, and the protective layer 55 are sequentially stacked on the display panel. The touch layer 54 may include: a first touch electrode, a second touch electrode 21, and one electrode of a first connection electrode and a second connection electrode; the bridge layer 52 includes: the other electrode of the first connection electrode and the second connection electrode. Fig. 7 illustrates an example in which the touch layer includes the second connection electrode 22 and the bridge layer includes the first connection electrode 12.

When the first connection electrode and the first touch electrode are arranged in the same layer, the touch layer may include: a plurality of first touch electrodes, a plurality of first connecting electrodes and a plurality of second touch electrodes; the first touch electrodes and the first connecting electrodes are alternately arranged and connected in sequence, and the second touch electrodes are arranged at intervals. The bridging layer comprises: a plurality of second connection electrodes.

When the second connection electrode and the first touch electrode are arranged in the same layer, the touch layer may include: a plurality of second touch electrodes, a plurality of second connection electrodes and a plurality of first touch electrodes; the plurality of second touch electrodes and the plurality of second connecting electrodes are alternately arranged and sequentially connected, and the plurality of first touch electrodes are arranged at intervals; the bridging layer comprises: a plurality of first connection electrodes.

In an exemplary embodiment, the bridge layer and the touch layer may be made of a metal, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or an alloy material of the above metals, such as aluminum neodymium (AlNd) or molybdenum niobium (MoNb), may be a single-layer structure, or a multi-layer composite structure, such as Mo/Cu/Mo, and the like.

In one exemplary embodiment, the buffer layer and the insulating layer may employ any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, a multi-layer, or a composite layer.

In one exemplary embodiment, the protective layer may be a glass cover plate.

In an exemplary embodiment, fig. 8 is a schematic structural diagram of a first touch trace or a second touch trace provided in an exemplary embodiment, and as shown in fig. 4 and fig. 8, the first touch trace and the second touch trace each include: the first touch line segment La, the second touch line segment Lb and the third touch line segment Lc. The first touch line segment La and the third touch line segment Lc extend along a first direction, and the second touch line segment Lb extends along a second direction.

In an exemplary embodiment, the first touch trace segment La is located in the non-display area; the second touch control line segment Lb is at least positioned in the fan-out area and is connected with one end of the first touch control line segment La; the third touch-control line segment Lc is at least located in the fan-out area and connected to one end of the second touch-control line segment Lb.

In an exemplary embodiment, the second touch trace segment Lb is disposed at the same layer as the third touch trace segment Lc and is disposed at a different layer from the first touch trace segment Lc.

In an exemplary embodiment, an included angle between the third touch trace segment and the touch signal trace is greater than 90 degrees.

In an exemplary embodiment, the touch layer may further include: the first touch control line segment. The second touch-control line segment is located at one side of the first touch-control line segment, which is close to the substrate.

In an exemplary embodiment, the first insulating layer is provided with a via hole, and the first touch trace section is connected with the second touch trace section through the via hole.

Fig. 9 is a schematic structural diagram of a touch display panel provided in an exemplary embodiment, as shown in fig. 9, in an exemplary embodiment, each of the first touch trace 31 and the second touch trace 32 includes: the fourth touch-control line segment Ld and the touch-control connecting portion Le. The fourth touch-control line segment Ld extends along the first direction; the fourth touch control line segment Ld is positioned in the non-display area; the touch connection part Le is connected with one end of the fourth touch line segment Ld and comprises: at least one dummy structure 40 located in the fan-out area.

In an exemplary embodiment, as shown in fig. 9, the virtual structure in the touch connection part includes: a first virtual structure 42 and a plurality of second virtual structures 41. The first dummy structure 42 is located in the fan-out area and is close to the non-display area, and the second dummy structure 41 is located in the fan-out area and is located at a side of the first dummy structure away from the plurality of pads.

In one exemplary embodiment, the front projection of the first dummy structure 42 on the substrate partially overlaps the non-display region, and the front projection of the second dummy structure 41 on the substrate does not overlap the non-display region.

In one exemplary embodiment, the first dummy structure 42 is connected to the touch signal trace TL. The fourth touch trace Ld in the first touch trace or the second touch trace is connected to the first virtual structure 41 through a plurality of second virtual structures 42.

In an exemplary embodiment, at least two second virtual structures 41 for connecting the first virtual structures 42 are connected to each other. The connection path W between the fourth touch pad Ld and the first virtual structure 42 in fig. 9 may be any of a plurality of second virtual structures 41, which is not limited in this disclosure.

In an exemplary embodiment, the arrangement manner of the plurality of virtual structures in the touch connection part Le may be a linear type, or may be a broken line type. The arrangement manner of the plurality of virtual structures in the touch connection portion Le may be determined according to touch accuracy, which is not limited in the present disclosure.

In an exemplary embodiment, when the arrangement manner of the plurality of virtual structures in the touch connection portion Le is a broken line, the broken line may include at least two straight line segments, and an included angle between two adjacent straight line segments is greater than 0 degrees and less than or equal to 180 degrees.

Fig. 8 illustrates an arrangement of a plurality of virtual structures in the touch connection portion Le as a broken line, and the broken line includes three broken line segments.

In an exemplary embodiment, FIG. 10 is a cross-sectional view taken along the direction B-B of FIG. 9. As shown in fig. 10, the touch panel may further include: at least one virtual connection 60. The virtual connection portion 60 is configured to connect a plurality of virtual structures 40, where the plurality of virtual structures 40 are connected to the same touch trace.

In an exemplary embodiment, the touch layer may further include: and a fourth touch control line segment.

In an exemplary embodiment, as shown in fig. 9 and 10, the bridge layer may further include: virtual connection 60. The insulating layer is provided with a via hole exposing the virtual connection portion, and the adjacent virtual structure 40 in the touch connection portion connected with the same touch trace is connected with the virtual connection portion 60 through the via hole. Fig. 8 illustrates an example in which the insulating layer is provided with a via hole exposing the dummy connection portion as a first via hole V1.

In one exemplary embodiment, the number of first vias may be at least one.

In an exemplary embodiment, when the first connection electrode and the first touch electrode are arranged in the same layer, the first insulation layer is provided with a via hole exposing the second connection electrode, and the second touch electrode is arranged adjacent to the first insulation layer at intervals and connected with the second connection electrode through the fifth via hole.

In an exemplary embodiment, when the second connection electrode and the first touch electrode are arranged in the same layer, the first insulation layer is provided with a via hole exposing the first connection electrode, and the adjacent first touch electrodes are arranged at intervals and connected with the first connection electrode through the fifth via hole. Fig. 9 illustrates that the third insulating layer is provided with a via hole exposing the first connection electrode as a second via hole V2 when the second connection electrode and the first touch electrode are arranged in the same layer.

In one exemplary embodiment, the number of second vias may be at least one.

The first touch control wiring and the second touch control wiring in the present disclosure can reduce the number of wirings through the virtual structure including the fan-out area, and can reduce the lower frame of the length touch control display panel of the fan-out area of the display panel along the first direction, thereby realizing a narrow frame.

Fig. 11 is a schematic plan view of a display panel. The display panel may include a plurality of pixel units PE regularly arranged on a plane parallel to the display panel.

In an exemplary embodiment, each pixel unit PE may include 3 sub-pixels P, or may include 4 sub-pixels, or may include a plurality of sub-pixels. When the pixel unit includes 3 sub-pixels, the 3 sub-pixels include a first sub-pixel emitting light of a first color, a second sub-pixel emitting light of a second color, and a third sub-pixel emitting light of a third color. When the pixel unit includes 4 sub-pixels, the 4 sub-pixels include a first sub-pixel emitting light of a first color, a second sub-pixel emitting light of a second color, a third sub-pixel emitting light of a third color, and a fourth sub-pixel emitting light of a fourth color. Fig. 11 illustrates an example in which each pixel unit includes 3 sub-pixels.

In an exemplary embodiment, when the pixel unit P includes 4 sub-pixels, the first sub-pixel and the fourth sub-pixel are green sub-pixels emitting green (G) light, the second sub-pixel is a red sub-pixel emitting red (R) light, and the third sub-pixel is a blue sub-pixel emitting blue (B) light, forming an RGGB square arrangement of pixel units. Alternatively, the first subpixel may be a green subpixel, the second subpixel may be a red subpixel, the third subpixel may be a blue subpixel, and the fourth subpixel may be a white (W) subpixel, forming an RGBW square-arranged pixel unit.

In one exemplary embodiment, the pixel unit PE may include red, green, blue, cyan, magenta, yellow, and white sub-pixels.

In one exemplary embodiment, when the pixel unit PE includes 4 sub-pixels, the 4 sub-pixels included in the pixel unit may take various shapes and be arranged in various manners. The 4 sub-pixels may take a rectangular shape, arranged in a side-by-side manner, from left to right: an R sub-pixel, a G sub-pixel, a B sub-pixel, and a G sub-pixel. Or the 4 sub-pixels can be respectively in pentagon and hexagon shapes, and are arranged in parallel, 2 pentagon G sub-pixels are positioned in the middle of the pixel unit, and the hexagon R sub-pixels and the hexagon B sub-pixels are respectively positioned at two sides of the G sub-pixels. In one exemplary embodiment of the present invention,

In an exemplary embodiment, when the pixel unit PE includes 3 sub-pixels, the 3 rectangular sub-pixels may be arranged in a horizontal direction side-by-side manner or may be arranged in a vertical direction side-by-side manner.

In an exemplary embodiment, the shape of the sub-pixels may be any one or more of triangle, square, rectangle, diamond, trapezoid, parallelogram, pentagon, hexagon, and other polygons, and the arrangement may be X-shape, cross-shape, or delta-shape, etc., which is not limited herein.

In an exemplary embodiment, as shown in fig. 11, the same column of subpixels P may be connected to the same data line D.

Fig. 12 is a schematic cross-sectional structure of a display panel, and fig. 12 is an illustration taking the display panel as an organic light emitting diode display panel as an example, and illustrates a structure of two sub-pixels when the display panel is an OLED display panel. As shown in fig. 10, the display panel may include a driving circuit layer 102 disposed on a substrate 101, a light emitting structure layer 103 disposed on a side of the driving circuit layer 102 away from the substrate 101, and a package layer 104 disposed on a side of the light emitting structure layer 103 away from the substrate 101, in a plane perpendicular to the display panel. In an exemplary embodiment, the display substrate may include other film layers, such as spacer posts, etc., and the disclosure is not limited thereto.

In one exemplary implementation, the Touch panel may be disposed on an encapsulation layer of the display panel, forming a structure with a Touch structure on a thin film encapsulation (Touch on Thin Film Encapsulation, touch on TFE).

In one exemplary implementation, the substrate 101 may be a flexible substrate, or may be a rigid substrate. The driving circuit layer 102 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. The light emitting structure layer 103 may include an anode 301, a pixel defining layer 302, an organic light emitting layer 303, and a cathode 304, the anode 301 is connected to a drain electrode of the driving transistor through a via hole, the organic light emitting layer 303 is connected to the anode 301, the cathode 304 is connected to the organic light emitting layer 303, and the organic light emitting layer 303 emits light of a corresponding color under the driving of the anode 301 and the cathode 304. The packaging layer 104 may include a first packaging layer 401, a second packaging layer 402 and a third packaging layer 403 which are stacked, the first packaging layer 401 and the third packaging layer 403 may be made of inorganic materials, the second packaging layer 402 may be made of organic materials, and the second packaging layer 402 is disposed between the first packaging layer 401 and the third packaging layer 403, so that external water vapor can be guaranteed not to enter the light emitting structure layer 103.

In an exemplary embodiment, the flexible substrate may include a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer stacked, the materials of the first flexible material layer and the second flexible material layer may be Polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer film, the materials of the first inorganic material layer and the second inorganic material layer may be silicon nitride (SiNx) or silicon oxide (SiOx), etc., for improving the water-oxygen resistance of the substrate, and the materials of the semiconductor layer may be amorphous silicon (a-si).

In an exemplary embodiment, the display panel may further include other film layers, and the other film layers may be disposed between the touch panel and the encapsulation layer, which is not limited herein.

In an exemplary embodiment, fig. 13 is a schematic structural diagram of a data line according to an exemplary embodiment, and as shown in fig. 13, the data line may include: a first data line segment Da, a second data line segment Db and a third data line segment Dc. Wherein the first data line segment Da and the third data line segment Dc extend along a first direction, and the second data line segment Db extends along a second direction;

In an exemplary embodiment, the first data line segment Da is at least located in the fan-out area and is electrically connected to the sub-pixels; the second data line segment Db is positioned in the fan-out area and is connected with the first data line segment Da; the third data line segment Dc is at least located in the fan-out area and connected to the second data line segment Db.

In an exemplary embodiment, fig. 14 is a schematic structural diagram of a data line according to another exemplary embodiment, and as shown in fig. 14, the data line may further include: auxiliary connection section Dd. The second data line segment Db and the third data line segment Dc are connected through an auxiliary connecting segment Dd, the extending directions of the auxiliary connecting segment Dd are different from the first direction and the second direction, the included angle between the auxiliary connecting segment Dd and the second data line segment Db is larger than 90 degrees, and the included angle between the auxiliary connecting segment Dd and the third data line segment Dc is larger than 90 degrees.

In an exemplary embodiment, the second data line segment Db and the third data line segment Dc may be arranged in the same layer. The second data line Db is located on a side of the first data line Da away from the substrate.

In an exemplary embodiment, fig. 15 is a cross-sectional view along the C-C direction of fig. 13, and as shown in fig. 15, the first data line segment Da may include: the first data segment Da1 and the second data segment Da2 are connected to each other, and the first data segment Da1 is located at one side of the second data segment Da2 away from the second data line segment Db. The second data line Db is connected to the second data segment Da 2.

In an exemplary embodiment, an insulating layer 61 is provided between the first data segment Da1 and the second data segment Da 2. An insulating layer 62 is arranged between the second data line segment Db and the second data segment Da 2.

In an exemplary embodiment, fig. 16 is a schematic structural diagram of a display panel provided in an exemplary embodiment, and as shown in fig. 16, the display panel may further include: the first power lines VDD are at least positioned in the display area AA and extend along a first direction; the second power line VSS is located at least in the non-display area AA'. It should be noted that only the data line connected to one of the sub-pixels is shown in fig. 16, and it is understood that the display panel includes a plurality of data lines, and at least one sub-pixel is connected to the data line.

In one exemplary embodiment, the first power line VDD may continuously supply a high level signal and the second power line VSS may continuously supply a low level signal.

In one exemplary embodiment, the second power line VSS may be located at least one side of the display region, which is not limited in any way by the present disclosure.

In an exemplary embodiment, the subpixels P located in the same column may be connected to the same first power line VDD.

In one exemplary embodiment, the display panel may further include: the first power bus VDDL is located in the non-display area AA'. The first power bus VDDL is located at a side of the pad 300 near the display area AA and extends along the second direction.

In one exemplary embodiment, the plurality of first power lines VDD may extend to the non-display area to be connected with the first power bus VDDL.

In one exemplary embodiment, the display panel may further include: at least one power pin 70. The first power bus VDDL is connected to the pad 300 through the first power pin 70.

In an exemplary embodiment, the second power line VSS may be connected to the pad 300.

In an exemplary embodiment, fig. 17 is a sectional view of fig. 16 along D-D, and as shown in fig. 17, the first power line VDD may include: a first power supply section VDD1 and a second power supply section VDD2 which are connected to each other and are provided in different layers.

In one exemplary embodiment, the first power supply segment VDD1 and the first data segment Da1 are arranged in the same layer, and the second power supply segment VDD2, the second data segment Da2, and the second power supply line VSS are arranged in the same layer. The first power supply section and the first data section are arranged in the same layer, and the second power supply section, the second data section and the second power line are arranged in the same layer, so that the thickness of the display panel can be reduced.

In an exemplary embodiment, fig. 18 is a schematic view of a display panel provided in an exemplary embodiment, and fig. 19 is a partial enlarged view of fig. 18. As shown in fig. 18 and 19, the display panel may further include: and a connection electrode LE positioned in the display area AA. The orthographic projection of the connection electrode LE on the substrate is not overlapped with the fan-out area.

In an exemplary embodiment, the connection electrode LE may be disposed in the same layer as the second data line segment.

In one exemplary embodiment, fig. 20 is a schematic view of a partial structure of a display panel provided in yet another exemplary embodiment, and fig. 21 is a schematic view of a partial structure of a display panel provided in yet another exemplary embodiment. As shown in fig. 20 and 21, the connection electrode LE may be connected to the second power line VSS or at least one first power line VSS. When the connection electrode LE is connected to the first power line VDD, the connection electrode LE is connected to the second power section of the first power line. Fig. 20 is an illustration of the connection electrode to the first power supply line, and fig. 21 is an illustration of the connection electrode to the second power supply line.

In an exemplary embodiment, the connection electrode LE may reduce the overall voltage drop of the display area, and may enhance the display effect of the display panel.

In one exemplary embodiment, the length L1 of the connection electrode LE in the second direction is less than or equal to the length of the display area in the second direction;

In one exemplary embodiment, the length L2 of the connection electrode LE in the first direction is greater than half of the length of the display area in the first direction. The larger the length of the connection electrode LE in the first direction is, the larger the voltage drop the connection electrode can reduce is.

In one exemplary embodiment, as shown in fig. 19, the connection electrode LE includes: a plurality of second grid patterns. Wherein the second mesh pattern is a polygon composed of second metal lines. Because the metal material has better ductility and is not easy to break, the bending performance of the display panel can be improved by adopting the metal grid, the display panel is more suitable for realizing a flexible touch function, and in addition, the cost can be reduced.

In an exemplary embodiment, the area enclosed by the orthographic projection of the second metal line on the substrate comprises the orthographic projection of at least one sub-pixel on the substrate. The orthographic projection of the second metal line on the substrate including at least one sub-pixel in the region surrounded by the orthographic projection on the substrate can not affect the display effect of the display panel

In one exemplary embodiment, a display panel may include: the substrate is sequentially stacked with a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a third metal layer. Wherein the first metal layer comprises: a first data segment and a first power segment, the second metal layer comprising: the second data segment, the second power segment, and the second power line, the third metal layer includes: a second data line segment and a third data line segment. Wherein the insulating layer 61 is a first insulating layer, and the insulating layer 62 is a second insulating layer.

In an exemplary embodiment, the second touch trace segment and the third touch trace segment may be located on the third metal layer.

In one exemplary embodiment, a third via exposing a second data segment of the data line and a fourth via exposing a second power segment or a second power line are disposed on the second insulating layer.

In an exemplary embodiment, the first data line segment is connected to the second data segment of the first data line segment of the connected data line via a third via.

In an exemplary embodiment, the connection electrode is connected to the second power line or the second power segment of the first power line through the fourth via hole.

In one exemplary embodiment, the first insulating layer and the second insulating layer may employ any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, a multi-layer, or a composite layer.

In an exemplary embodiment, the first, second, and third metal layers may be made of a metal material such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or an alloy material of the above metals such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), and may be a single-layer structure, or a multi-layer composite structure such as Ti/Al/Ti, or the like.

Fig. 22 is a schematic structural diagram of a touch display device according to an embodiment of the present disclosure, and as shown in fig. 22, the embodiment of the present disclosure further provides a touch display device, including: the display panel 1 is touched.

In an exemplary embodiment, the touch display device may be: any product or component with display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

The touch display panel provided by any one of the foregoing embodiments has similar implementation principles and implementation effects, and is not described herein.

The drawings in the present disclosure relate only to structures to which embodiments of the present disclosure relate, and other structures may be referred to as general designs.

In the drawings for describing embodiments of the present disclosure, thicknesses and dimensions of layers or microstructures are exaggerated for clarity. It will be understood that when an element such as a layer, film, region or panel is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

While the embodiments disclosed in the present disclosure are described above, the embodiments are only employed for facilitating understanding of the present disclosure, and are not intended to limit the present disclosure. Any person skilled in the art to which this disclosure pertains will appreciate that numerous modifications and changes in form and details can be made without departing from the spirit and scope of the disclosure, but the scope of the disclosure is to be determined by the appended claims.

Claims

1. A touch display panel, comprising: a display panel and a touch panel; the touch panel is positioned on the light emergent side of the display panel or on the backlight side opposite to the light emergent side;

The display panel includes:

A plurality of sub-pixels located in the display area;

A plurality of bonding pads located in the non-display area;

The touch panel includes:

at least part of the first touch wires and the second touch wires are positioned in the display area and pass through the fan-out area;

the first touch structure includes: the first touch electrode of a plurality of, the second touch structure includes: a plurality of second touch electrodes;

The touch panel further includes: a virtual structure located within the virtual area, the virtual structure comprising: a plurality of first grid patterns; the first grid pattern is a polygon composed of first metal lines;

the area surrounded by the orthographic projection of the first metal line on the substrate comprises orthographic projection of at least one sub-pixel on the substrate;

The first touch trace and the second touch trace each include: the fourth touch control line segment and the touch control connecting part; the fourth touch control line segment extends along the first direction;

the fourth touch control line segment is positioned in the non-display area;

The touch connection part is connected with one end of the fourth touch line segment and comprises: at least one virtual structure located in the fan-out area;

the touch panel includes: the touch control device comprises a buffer layer, a bridging layer, a first insulating layer, a touch control layer and a protective layer which are sequentially stacked;

The touch layer includes: the first touch electrode, the second touch electrode, the virtual structure and one of the first connecting electrode and the second connecting electrode are connected; the bridge layer includes: and the other of the first connection electrode and the second connection electrode.

2. The touch display panel of claim 1, wherein the plurality of first touch traces and the plurality of second touch traces are located on both sides of the plurality of data lines in the fan-out region.

3. The touch display panel according to claim 2, wherein the plurality of first touch traces and the plurality of second touch traces are symmetrically arranged along a center line of the display area, and two sides of the center line of the display area are a first side and a second side respectively;

4. A touch display panel according to any of claims 1-3, wherein a plurality of the first touch structures are arranged along the second direction and a plurality of the second touch structures are arranged along the first direction.

5. The touch display panel of claim 1, wherein the first touch trace and the second touch trace each comprise: the first touch control line segment, the second touch control line segment and the third touch control line segment; the first touch-control line segment and the third touch-control line segment extend along the first direction, and the second touch-control line segment extends along the second direction;

The first touch control line segment is positioned in the non-display area;

6. The touch display panel of claim 5, wherein the second touch trace segment is co-layered with the third touch trace segment and is different from the first touch trace segment.

7. The touch display panel of claim 5 or 6, wherein the touch layer further comprises: the first touch control line segment; the second touch control line segment is positioned at one side of the first touch control line segment, which is close to the substrate;

8. The touch display panel of claim 1, wherein the virtual structure in the touch connection portion comprises: a first virtual structure and a plurality of second virtual structures; the first virtual structure is located in the fan-out area and is close to the non-display area, and the second virtual structure is located in the fan-out area and is located at one side, away from the plurality of bonding pads, of the first virtual structure.

9. The touch display panel according to claim 1 or 8, further comprising: at least one virtual connection;

10. The touch display panel of claim 9, wherein the bridging layer further comprises: a virtual connection part;

11. The touch display panel of claim 1, wherein the data line comprises: a first data line segment, a second data line segment, and a third data line segment; the first data line segment and the third data line segment extend along the first direction, and the second data line segment extends along the second direction;

12. The touch display panel of claim 11, wherein the second data line segment and the third data line segment are arranged in a same layer;

13. The touch display panel of claim 12, wherein the first data line segment comprises: the first data segment and the second data segment are connected with each other and arranged in different layers, and the first data segment is positioned at one side of the second data segment, which is away from the second data line segment;

the second data line segment is connected to the second data segment.

14. The touch display panel of claim 13, further comprising:

the second power line is positioned at least in the non-display area;

15. The touch display panel of claim 14, further comprising: a connection electrode located in the display area; orthographic projection of the connecting electrode on the substrate is not overlapped with the fan-out area;

16. The touch display panel according to claim 15, wherein a length of the connection electrode along the second direction is less than or equal to a length of the display area along the second direction;

17. The touch display panel according to claim 15 or 16, wherein the connection electrode comprises: and a plurality of second mesh patterns, the second mesh patterns being polygons formed of second metal lines.

18. A touch display device, comprising: the touch display panel of any one of claims 1 to 17.