CN114003143A

CN114003143A - Touch display panel and touch display device

Info

Publication number: CN114003143A
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: 2022-02-01

Abstract

A touch display panel and a touch display device are provided, wherein the touch display panel includes: display panel and touch panel, display panel includes: a substrate including a display area and a non-display area at least partially surrounding the display area, the display area including a fan-out area; the plurality of data lines are at least positioned in the display area and electrically connected with the plurality of sub-pixels, and at least part of the plurality of data lines pass 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 plurality of first touch-control wires and the plurality of second touch-control wires are at least positioned in the non-display area, the plurality of first touch-control wires are connected with the plurality of first touch-control structures, and the plurality of second touch-control wires are connected with the plurality of second touch-control structures; at least part of the first touch-control routing lines and the second touch-control routing lines penetrate through the fan-out area.

Description

Touch display panel and touch display device

Technical Field

The present disclosure relates to but is not limited to the field of display technologies, 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 (TFT-LCD) panels and Active Matrix Organic Light Emitting Diode (AMOLED) panels, have been widely used in electronic products such as televisions and mobile phones because of their advantages of Light weight, Thin thickness, and low power consumption. With the development of display technologies, a high-resolution and narrow-bezel touch display panel is becoming a trend of development.

Disclosure of Invention

The following is a summary of the subject matter described in detail in this 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 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 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, at least part of the plurality of data lines penetrate through the fan-out area and are electrically connected with the plurality of bonding pads;

the touch panel includes:

a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, orthographic projections of the first touch structures and the second touch structures on the substrate are at least located in the display area, the first direction and the second direction are intersected, and the first direction is an extending direction of the data lines;

a plurality of first touch-control wires and a plurality of second touch-control wires, which are at least positioned in the non-display area, wherein the plurality of first touch-control wires are connected with the plurality of first touch-control structures, and the plurality of second touch-control wires are connected with the plurality of second touch-control structures;

at least part of the first touch-control routing lines and the second touch-control routing lines penetrate through the fan-out area.

In some possible implementation manners, the plurality of first touch traces and the plurality of second touch traces are located at two sides of the plurality of data lines in the fan-out area.

In some possible implementation manners, the first touch traces and the 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 first touch-control wires are located on the first side, and the second touch-control wires are located on the second side;

or, a part of the first touch traces are located at the first side, another part of the first touch traces are located at the second side, a part of the second touch traces are located at the first side, and another part of the second touch traces 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: a plurality of first touch electrodes and a plurality of first connection electrodes, the second touch structure including: 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 formed of first metal lines.

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

the touch layer includes: the first touch electrode, the second touch electrode, a virtual structure, and one of the first connection electrode and the second connection electrode; the bridge layer includes: the other of the first connection electrode and the second connection electrode portion.

In some possible implementations, the first touch trace and the second touch trace each include: the touch control device comprises a first touch control route segment, a second touch control route segment and a third touch control route segment; the first touch control route segment and the third touch control route segment extend along the first direction, and the second touch control route segment extends along the second direction;

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

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

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 implementation manners, the second touch control route segment and the third touch control route segment are arranged on the same layer, and are arranged on different layers from the first touch control route segment.

In some possible implementations, the touch layer further includes: a first touch control route segment; the second touch routing segment is positioned on one side, close to the substrate, of the first touch routing segment;

the first insulating layer is provided with a through hole, and the first touch control route segment is connected with the second touch control route segment through the through hole.

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

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

the touch connecting portion is connected to one end of the fourth touch route segment, and includes: 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 close to the non-display area, and the second virtual structure is located in the fan-out area and located on one side, far away from the pads, of the first virtual structure.

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

the virtual connecting portion is arranged to be connected with a plurality of virtual structures, and the virtual structures are connected with the same touch control routing.

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

the bridge layer further comprises: a virtual connection portion;

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

In some possible implementations, the data line includes: the first data route segment, the second data route segment and the third data route 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 to the first data line segment;

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

In some possible implementations, the second data route segment and the third data route segment are arranged in the same layer;

the second data route segment is positioned on one side of the first data route segment, which is far away from the substrate.

In some possible implementations, the first data trace 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 on one side of the second data segment, which is deviated from the second data route segment;

the second data route segment is connected with the second data segment.

In some possible implementations, the display panel further includes:

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

a second power line at least in the non-display region;

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 section and the first data section are arranged on the same layer, and the second power section, the second data section and the second power line are arranged on the same layer.

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

the connection electrode and the second data routing 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 in the second direction is less than or equal to a length of the display area in 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: a plurality of second mesh patterns that are polygons composed 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 be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the 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 provided in 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 region R2 of 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 of FIG. 4 taken 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 line 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 structure provided in 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 line C-C of FIG. 13;

fig. 16 is a schematic structural diagram of a display panel according to an exemplary embodiment;

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

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

FIG. 19 is a partial enlarged view of FIG. 18;

fig. 20 is a partial structural view of a display panel according to still another exemplary embodiment;

fig. 21 is a schematic partial structure diagram 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 component, the thickness of layers, or regions may be exaggerated for clarity. Therefore, one aspect of the present disclosure is not necessarily limited to the dimensions, and the shapes and sizes of the respective components in the drawings do not reflect a true scale. Further, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes, numerical values, and the like shown in the drawings.

The ordinal numbers such as "first", "second", "third", and the like in the present specification are provided for avoiding confusion among the constituent elements, and are not limited in number.

In this specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships are used to explain positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. The positional relationship of the components is changed as appropriate in accordance with the direction in which each component is described. Therefore, the words described in the specification are not limited to the words described in the specification, and may be replaced as appropriate.

In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

In this specification, a transistor refers to an element including at least three terminals, i.e., a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain electrode) and a source electrode (source electrode terminal, source region, or source electrode), and 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 where current mainly flows.

In this specification, the first electrode may be a drain electrode and 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 transistors of opposite polarities, or in the case of changing the direction of current flow 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 kind of electrical action. The "element having a certain electric function" is not particularly limited as long as it can transmit and receive an electric signal between connected components. Examples of the "element having some kind of electric function" 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 an angle formed by two straight lines is-10 ° or more and 10 ° or less, and therefore, includes a state in which the angle is-5 ° or more and 5 ° or less. 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 therefore includes a state in which the angle is 85 ° or more and 95 ° or less.

In the present specification, "film" and "layer" may be interchanged with each other. For example, the "conductive layer" may be sometimes replaced with a "conductive film". Similarly, the "insulating film" may be replaced with an "insulating layer".

"about" in this disclosure means that the limits are not strictly defined, and that the numerical values are within the tolerances allowed for the process and measurement.

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

Fig. 1 is a schematic structural diagram of a touch display panel provided in an embodiment of the disclosure, fig. 2 is a cross-sectional diagram of the touch display panel provided in the embodiment of the disclosure, fig. 3 is an enlarged view of an area R1 in fig. 1, and fig. 4 is a schematic structural diagram of the touch panel provided in 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 including a display area AA and a non-display area AA' at least partially surrounding the display area AA, the display area AA including a fan-out area; a plurality of sub-pixels located in the display area AA; a plurality of pads 300 positioned in the non-display region; and a plurality of data lines D at least in the display area AA and electrically connected to the plurality of sub-pixels, the plurality of data lines D at least partially passing through the fan-out area and electrically connected to the plurality of pads 300.

In an exemplary embodiment, as shown in fig. 1 and 4, the touch panel may include: the touch panel 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 located 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 plurality of first touch traces 10 and the plurality of second touch traces 20 are at least located in the non-display area, the plurality of first touch traces 31 are connected with the plurality of first touch structures 10, and the plurality of second touch traces 32 are connected with the plurality of second touch structures 20; at least a part of the plurality of first touch traces 31 and the plurality of second touch traces 32 pass through the fan-out area.

In an 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 the touch panel 200 located on the light emitting side of the display panel 100.

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

In one exemplary embodiment, the plurality of pads 300 may be located at the bonding region.

In an exemplary embodiment, the display panel may further include: touch signal traces TL. The touch signal routing TL passes through the bending area and the second fan-out area. The touch signal trace may be connected to the first touch trace and the second touch trace.

In an exemplary embodiment, as shown in fig. 3, the display panel may further include: and the data routing DL is positioned 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 on two sides of the plurality of data traces DL.

In an exemplary embodiment, the first touch structure may be a driving electrode (Tx) and 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 an exemplary embodiment, the number of the first touch structures and the second touch structures may be set according to touch precision.

In an exemplary embodiment, different first touch traces are connected to different first touch structures. Different second touch routing is connected with different second touch 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 touch display panel provided by the embodiment of the disclosure includes: a display panel and a touch panel; the touch panel is positioned on the light emergent side of the display panel or the backlight side opposite to the light emergent side; the display panel includes: a substrate including a display area and a non-display area at least partially surrounding the display area, the display area including a fan-out area; a plurality of sub-pixels located in the display area; a plurality of pads located in the non-display area; the plurality of data lines are at least positioned in the display area and electrically connected with the plurality of sub-pixels, and at least part of the plurality of data lines pass 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 direction is intersected with the second direction, and the first direction is the extending direction of a data line; the plurality of first touch-control wires and the plurality of second touch-control wires are at least positioned in the non-display area, the plurality of first touch-control wires are connected with the plurality of first touch-control structures, and the plurality of second touch-control wires are connected with the plurality of second touch-control structures; at least part of the first touch-control routing lines and the second touch-control routing lines penetrate through the fan-out area. According to the touch display panel, at least part of the first touch wires and the second touch wires penetrate through the fan-out area, so that the lower frame of the touch display panel can be reduced, 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 first touch traces 31 and the second touch traces 32 are symmetrically disposed along the center line ML of the display area. Wherein, the two sides of the middle 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 at the first side, and the plurality of second touch traces may be located at the second side, or alternatively, a part of the plurality of first touch traces is located at the first side, another part of the plurality of first touch traces is located at the second side, a part of the plurality of second touch traces is located at the first side, and another part of the plurality of second touch traces is located at the second side. Fig. 1 and fig. 3 illustrate an example in which a part of the first touch traces is located on the first side, another part of the first touch traces is located on the second side, a part of the second touch traces is located on the first side, and another part of the second touch traces is 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, and the second touch structure 20 may include: a plurality of second touch electrodes 21 and a plurality of second connection electrodes 22.

In an 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 touch electrode 11 and the second touch electrode 21 are diamond-shaped, the first touch electrode 11 and the second touch electrode 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 dummy region is defined between the plurality of first electrodes and the plurality of second electrodes. Fig. 5 illustrates the first touch electrode 11 and the second touch electrode 21 as diamond, for example, the first touch electrode and the second touch electrode may also be triangular, and in this case, the first touch electrode and the second touch electrode may include: three electrodes extending in three different directions, a virtual area being defined by the three electrodes. The first touch electrode and the second touch electrode may also have other shapes, which is not limited in this disclosure.

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

In an exemplary embodiment, 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. The area surrounded by the orthographic projection of the first metal wire 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, each of the first touch electrode 11 and the second touch electrode 21 includes: a plurality of first mesh patterns, wherein the first mesh patterns are polygons formed of the first metal lines.

In an exemplary embodiment, fig. 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 formed of the first metal lines. Or the metal grid is formed by splicing and repeatedly and continuously arranging grid patterns. In one exemplary embodiment, the shape of the grid pattern defined by the first metal lines may be a diamond shape, as shown in fig. 6-1. Alternatively, the shape of the mesh pattern surrounded by the first metal lines may be a triangle, as shown in fig. 6-2. Alternatively, the shape of the grid pattern surrounded by the first metal lines may be rectangular, as shown in fig. 6-3. Alternatively, the shape of the grid pattern defined by the first metal lines may be hexagonal, as shown in fig. 6-4. Alternatively, the shape of the grid pattern defined by the first metal lines may be a combination of shapes, such as a combination of pentagons and hexagons, as shown in fig. 6-5. Alternatively, the shape of the mesh pattern surrounded by the first metal wires may include any one or more of a triangle, a square, a rectangle, a rhombus, a trapezoid, a pentagon, and a hexagon. For example, the grid pattern formed by the first metal lines may have a regular shape or an irregular shape, and the sides of the grid pattern may be straight lines or may be curved lines, which is not limited in this disclosure. Fig. 5 illustrates an example in which the shape of the mesh pattern surrounded by the first metal lines is a rectangle.

In one exemplary embodiment, the first touch electrode and the second touch electrode are disposed at the same layer, and the first connection electrode or the second connection electrode is disposed at the same layer as the first touch electrode. Fig. 4 is an example of the arrangement of the second connection electrode and the first touch electrode 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 connection electrode and the second connection 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 the same material, and have the same pattern, so that the problems of poor image elimination and optical moire caused by mutual interference due to the difference of line widths and the like of different layers of metal grids can be solved, and a better image elimination effect is achieved.

In one exemplary embodiment, the plurality of first touch electrodes and the plurality of second touch electrodes and the plurality of first connection electrodes are disposed at the same layer. The first touch electrode and the first connection electrode may be integrally 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 disposed at the same layer, and the second touch electrode and the second connection electrode may be integrally connected to each other.

In an exemplary embodiment, the first touch electrode and the second touch electrode may have a diamond shape, for example, a regular diamond shape, a horizontally long diamond shape, or a vertically long diamond shape. Illustratively, the first touch electrode and the second touch electrode may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons, and the disclosure is not limited thereto. Fig. 4 and 5 illustrate the first touch electrode and the second touch electrode as rhombus shapes.

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 structures as driving electrodes and the second touch structures as sensing electrodes as examples, when the touch panel is in operation, a driving signal is input to a first touch structure, each second touch structure receives a signal in sequence, a driving signal is input to a second first touch structure, each second touch structure receives a signal in sequence, and so on until a driving signal is input to a last first touch structure. The mutual capacitance of the first touch structure and the second touch structure is changed due to the touch of a human finger, 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 direction, 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. Among them, the touch layer 54 may include: the first touch electrode, the second touch electrode 21, and one of the first connection electrode and the second connection electrode; the bridge layer 52 includes: the other of the first connection electrode and the second connection electrode. Fig. 7 illustrates the touch layer including the second connecting electrode 22 and the bridge layer including the first connecting electrode 12.

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

When the second connection electrode and the first touch electrode are disposed on the same layer, the touch layer may include: a plurality of second touch electrodes, a plurality of second connecting 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 includes: a plurality of first connecting electrodes.

In an exemplary embodiment, the material of the bridge layer and the touch layer may be 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), and 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 view 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 both include: the first touch control route segment La, the second touch control route segment Lb and the third touch control route segment Lc. The first touch travel line segment La and the third touch travel line segment Lc extend along a first direction, and the second touch travel 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 travel line segment Lc is at least located in the fan-out area and connected to one end of the second touch travel line segment Lb.

In an exemplary embodiment, the second touch trace Lb and the third touch trace Lc are disposed on the same layer and are disposed on different layers from the first touch trace 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 route segment. The second touch routing segment is located on one side, close to the substrate, of the first touch routing segment.

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

Fig. 9 is a schematic structural diagram of a touch display panel according to 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: a fourth touch travel line segment Ld and a touch connection part Le. The fourth touch travel line segment Ld extends along the first direction; the fourth touch travel line segment Ld is positioned in the non-display area; the touch connection part Le is connected to one end of the fourth touch trace Ld, and includes: at least one dummy structure 40 located at the fan-out area.

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

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

In an 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 dummy structures 41 for connecting the first dummy structures 42 are connected to each other. The connection path W between the fourth touch trace 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 of the plurality of virtual structures in the touch connection part Le may be a straight line type or a broken line type. The arrangement of the plurality of virtual structures in the touch connection part Le may be determined according to the touch precision, which is not limited in this disclosure.

In an exemplary embodiment, when the arrangement manner of the plurality of virtual structures in the touch connection part Le is a broken line type, 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 degree and less than or equal to 180 degrees.

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

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

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

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

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

In an exemplary embodiment, when the first connecting electrode and the first touch electrode are disposed on the same layer, the first insulating layer is formed with via holes exposing the second connecting electrode, and the second touch electrode is disposed adjacently and at an interval and connected to the second connecting electrode through fifth via holes.

In an exemplary embodiment, when the second connection electrode and the first touch electrode are disposed on the same layer, the first insulating layer is formed with via holes exposing the first connection electrode, and the first touch electrode is disposed adjacent to and spaced apart from the first connection electrode and connected to the first connection electrode through fifth via holes. Fig. 9 illustrates an example in which, when the second connection electrode and the first touch electrode are disposed on the same layer, the third insulating layer is provided with a via hole exposing the first connection electrode as a second via hole V2.

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

In the present disclosure, the number of the first touch routing and the second touch routing can be reduced by including the virtual structure located in the fan-out area, and the lower frame of the display panel can be reduced by reducing the length 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 subpixels P, or may include 4 subpixels, or may include a plurality of subpixels. 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 for emitting light of a first color, a second sub-pixel for emitting light of a second color, a third sub-pixel for emitting light of a third color, and a fourth sub-pixel for 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 sub-pixel may be a green sub-pixel, the second sub-pixel may be a red sub-pixel, the third sub-pixel may be a blue sub-pixel, and the fourth sub-pixel may be a white (W) sub-pixel, forming a pixel unit in an RGBW square arrangement.

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

In an exemplary embodiment, when the pixel unit PE includes 4 sub-pixels, the 4 sub-pixels included in the pixel unit PE may take various shapes and be arranged in various ways. The 4 sub-pixels can be rectangular and arranged in a parallel mode, and from left to right, the sub-pixels respectively comprise: r sub-pixel, G sub-pixel, B sub-pixel, and G sub-pixel. Alternatively, the 4 sub-pixels may respectively take a pentagonal shape and a hexagonal shape, and be arranged in a parallel manner, the 2 pentagonal G sub-pixels are located at the middle of the pixel unit, and the hexagonal R sub-pixels and the hexagonal B sub-pixels are located at both sides of the G sub-pixels, respectively. 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-pixel may be any one or more of a triangle, a square, a rectangle, a rhombus, a trapezoid, a parallelogram, a pentagon, a hexagon and other polygons, and the arrangement may be an X-shape, a cross-shape, a delta-shape, etc., and the disclosure is not limited thereto.

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 diagram of a display panel, and fig. 12 illustrates an example in which the display panel is an organic light emitting diode display panel, 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 an encapsulation 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 pillars, and the like, and the disclosure is not limited thereto.

In an exemplary implementation, the Touch panel may be disposed on an Encapsulation layer of the display panel, and a Touch structure is formed on a 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 by being driven by the anode 301 and the cathode 304. The encapsulation layer 104 may include a first encapsulation layer 401, a second encapsulation layer 402, and a third encapsulation layer 403 that are stacked, the first encapsulation layer 401 and the third encapsulation layer 403 may be made of inorganic materials, the second encapsulation layer 402 may be made of organic materials, and the second encapsulation layer 402 is disposed between the first encapsulation layer 401 and the third encapsulation layer 403, which may ensure that external moisture cannot 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 on the first flexible material layer, the first flexible material layer and the second flexible material layer may be made of Polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer film, the first inorganic material layer and the second inorganic material layer may be made of silicon nitride (SiNx), silicon oxide (SiOx), or the like, for improving water and oxygen resistance of the substrate, and the semiconductor layer may be made of 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 provided in 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. 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 region and electrically connected to the sub-pixel; the second data line segment Db is positioned in the fan-out area and connected with the first data line segment Da; and the third data line segment Dc is at least positioned in the fan-out area and is connected with the second data line segment Db.

In an exemplary embodiment, fig. 14 is a schematic structural diagram of a data line provided in another exemplary embodiment, and as shown in fig. 14, the data line may further include: the auxiliary connection segment Dd. The second data line segment Db and the third data line segment Dc are connected through an auxiliary connecting segment Dd, the extension direction of the auxiliary connecting segment Dd is 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 on the same layer. The second data line segment Db is located on a side of the first data line segment Da away from the substrate.

In an exemplary embodiment, fig. 15 is a cross-sectional view taken along direction C-C 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 with each other and arranged in different layers, and the first data segment Da1 is located on the side of the second data segment Da2 departing from the second data line segment Db. The second data segment Db is connected to the second data segment Da 2.

In one exemplary embodiment, the insulating layer 61 is disposed between the first and second data segments Da1 and Da 2. An insulating layer 62 is disposed between the second data 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: a plurality of first power lines VDD at least in the display area AA and extending along a first direction; the second power line VSS is at least located in the non-display area AA'. It should be noted that fig. 16 only shows the data lines to which one of the sub-pixels is connected, and it is understood that the display panel includes a plurality of data lines, and at least one of the sub-pixels is connected to the data lines.

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

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

In an exemplary embodiment, the display panel may further include: a first power bus VDDL located at 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 in the second direction.

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

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

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

In an exemplary embodiment, fig. 17 is a cross-sectional view taken along the direction D-D of fig. 16, and as shown in fig. 17, the first power line VDD may include: the first power segment VDD1 and the second power segment VDD2 are connected with each other and arranged in different layers.

In one exemplary embodiment, the first power segment VDD1 and the first data segment Da1 are disposed in the same layer, and the second power segment VDD2, the second data segment Da2 and the second power line VSS are disposed in the same layer. The first power section and the first data section are arranged on the same layer, and the second power section, the second data section and the second power line are arranged on 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 partially enlarged view of fig. 18. As shown in fig. 18 and 19, the display panel may further include: and a connection electrode LE positioned at the display area AA. The orthographic projection of the connecting electrode LE on the substrate does not overlap with the fan-out area.

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

In an exemplary embodiment, fig. 20 is a schematic partial structure diagram of a display panel provided in yet another exemplary embodiment, and fig. 21 is a schematic partial structure diagram 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 line segment of the first power line. Fig. 20 illustrates an example in which the connection electrode is connected to the first power supply line, and fig. 21 illustrates an example in which the connection electrode is connected to the second power supply line.

In an exemplary embodiment, the connection electrode LE may reduce the overall voltage drop of the display region, and may improve 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 greater the length of the connection electrode LE in the first direction, the greater the voltage drop that the connection electrode can reduce.

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 formed of the second metal lines. Because metal material has better ductility, difficult fracture adopts metal mesh, can improve display panel's the performance of buckling for display panel is more fit for realizing flexible touch-control function, can also reduce cost in addition.

In an exemplary embodiment, the area surrounded 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 at least one sub-pixel on the substrate in the area surrounded by the orthographic projection of the second metal wire on the substrate can not influence the display effect of the display panel

In one exemplary embodiment, the display panel may include: the device comprises a substrate, and a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a third metal layer which are sequentially stacked on the substrate. Wherein the first metal layer includes: a first data segment and a first power segment, the second metal layer comprising: a second data segment, a second power segment, and a second power line, the third metal layer including: a second data run and a third data run. 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 an exemplary embodiment, a third via hole exposing the second data segment of the data line and a fourth via hole exposing the second power supply segment or the second power supply line are disposed on the second insulating layer.

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

In one exemplary embodiment, the connection electrode is connected with 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 and second insulating layers 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 metal layer, the second metal layer, and the third metal layer 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 have a single-layer structure or a multi-layer composite structure, such as Ti/Al/Ti, and the like.

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

In an exemplary embodiment, the touch display device may be: any product or component with a 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 is provided in any of the embodiments, and the implementation principle and the implementation effect are similar, and are not described herein again.

The drawings in this disclosure relate only to the structures to which the embodiments of the disclosure relate, and other structures may refer to general designs.

For clarity, the thickness and dimensions of layers or microstructures are exaggerated in the drawings that are used to describe embodiments of the present disclosure. 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.

Although the embodiments disclosed in the present disclosure are described above, the descriptions are only for the convenience of understanding the present disclosure, and are not intended to limit the present disclosure. It will be understood by those skilled in the art of the present disclosure that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure is to be limited only by the terms of 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 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 pads located in the non-display area;

the touch panel includes:

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

3. The touch display substrate according to claim 2, wherein the first touch traces and the second touch traces are symmetrically disposed 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. The touch display panel according to any one of claims 1 to 3, wherein 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: a plurality of first touch electrodes and a plurality of first connection electrodes, the second touch structure including: a plurality of second touch electrodes and a plurality of second connection electrodes;

5. The touch display panel according to claim 4, wherein the touch panel comprises: the buffer layer, the bridging layer, the first insulating layer, the touch layer and the protective layer are sequentially stacked;

6. The touch display panel of claim 5, wherein the first touch trace and the second touch trace each comprise: the touch control device comprises a first touch control route segment, a second touch control route segment and a third touch control route segment; the first touch control route segment and the third touch control route segment extend along the first direction, and the second touch control route segment extends along the second direction;

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

7. The touch display panel according to claim 6, wherein the second touch trace segment and the third touch trace segment are disposed on the same layer and are disposed on different layers from the first touch trace segment.

8. The touch display panel according to claim 6 or 7, wherein the touch layer further comprises: a first touch control route segment; the second touch routing segment is positioned on one side, close to the substrate, of the first touch routing segment;

9. The touch display panel of claim 5, wherein the first touch trace and the second touch trace each comprise: a fourth touch travel line segment and a touch connecting part; the fourth touch travel line segment extends along the first direction;

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

10. The touch display panel of claim 9, wherein the dummy structures in the touch connection portion comprise: a first virtual structure and a plurality of second virtual structures; the first virtual structure is located in the fan-out area and close to the non-display area, and the second virtual structure is located in the fan-out area and located on one side, far away from the pads, of the first virtual structure.

11. The touch display panel according to claim 9 or 10, wherein the touch panel further comprises: at least one virtual connection;

12. The touch display panel of claim 11, wherein the touch layer further comprises: the fourth touch control route segment;

the bridge layer further comprises: a virtual connection portion;

13. The touch display panel of claim 1, wherein the data line comprises: the first data route segment, the second data route segment and the third data route 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;

14. The touch display panel of claim 13, wherein the second data trace segment and the third data trace segment are disposed on the same layer;

15. The touch display panel of claim 14, wherein the first data trace 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 on one side of the second data segment, which is deviated from the second data route segment;

the second data route segment is connected with the second data segment.

16. The touch display panel of claim 15, wherein the display panel further comprises:

a second power line at least in the non-display region;

17. The touch display panel of claim 16, wherein the display panel further comprises: a connection electrode positioned in the display region; the orthographic projection of the connecting electrode on the substrate is not overlapped with the fan-out area;

18. The touch display panel according to claim 17, wherein a length of the connection electrode in the second direction is less than or equal to a length of the display area in the second direction;

19. The touch display panel according to claim 17 or 18, wherein the connection electrode includes: a plurality of second mesh patterns that are polygons composed of second metal lines.

20. A touch display device, comprising: the touch display panel of any one of claims 1-19.