Touch display panel and display device

Abstract

Embodiments of the present application provide a touch display panel and a display device, and relate to the technical field of display, and are used for improving the anti-static ability of the touch display panel. The touch display panel comprises a plurality of first touch electrode groups, each of which comprises a plurality of first touch electrodes; in the same first touch electrode group, two adjacent first touch electrodes are electrically connected to each other; a plurality of second touch electrode groups, each of which comprises a plurality of second touch electrodes; in the same second touch electrode group, two adjacent second touch electrodes are electrically connected to each other; a plurality of first touch signal lines, each of which is electrically connected to a first touch electrode group; a plurality of second touch signal lines, each of which is electrically connected to a second touch electrode group; a shielding line between the first touch signal lines and the second touch signal lines; the shielding line comprises a continuous part, which corresponds to the boundary position of the first touch electrodes and the second touch electrodes.

Description

[Technical Field]

[0001] This invention relates to the field of display technology, and more particularly to a touch display panel and display device. [Background Technology]

[0002] With the rapid development of display technology and human-computer interaction technology, touch-screen display panels are being used more and more widely. For example, to achieve portability and compact size, many electronic products, such as mobile phones, have changed their input methods from using traditional keyboards or mice to using touch screens as input devices.

[0003] To integrate touch functionality onto a display panel, touch electrodes need to be added. Ensuring the electrical reliability of these electrodes, improving their anti-static capabilities, and preventing electrostatic discharge (ESD) damage have become key research focuses for researchers. [Summary of the Invention]

[0004] In view of this, embodiments of the present invention provide a touch display panel and a display device to improve the anti-static capability of the touch display panel.

[0005] On one hand, embodiments of the present invention provide a touch display panel, including:

[0006] Multiple first touch electrode groups, each first touch electrode group including multiple first touch electrodes arranged along a first direction; multiple first touch electrode groups arranged along a second direction, the first direction intersecting the second direction; in the same first touch electrode group, two adjacent first touch electrodes are electrically connected to each other;

[0007] Multiple second touch electrode groups, each second touch electrode group including multiple second touch electrodes arranged along the second direction; multiple second touch electrode groups arranged along the first direction; in the same second touch electrode group, adjacent two second touch electrodes are electrically connected to each other;

[0008] Multiple first touch signal lines, the first touch signal lines being electrically connected to the first touch electrode group;

[0009] Multiple second touch signal lines, which are electrically connected to the second touch electrode group;

[0010] A shielding line, at least partially located between the first touch signal line and the second touch signal line; the shielding line includes a continuous portion corresponding to the boundary position between the first touch electrode and the second touch electrode.

[0011] On the other hand, embodiments of the present invention provide a display device including the touch display panel described above.

[0012] The touch display panel and display device provided in this embodiment of the invention can reduce crosstalk between the first touch signal line and the second touch signal line by setting a shielding line in the touch display panel, which is beneficial to improving the accuracy of the signals transmitted on the first touch signal line and the second touch signal line, thereby improving the accuracy of touch operation.

[0013] Furthermore, by providing a continuous portion in the shielding line corresponding to the boundary position, the embodiments of the present invention can prevent the shielding line from being cut off at the corresponding boundary position, thereby preventing the shielding line from forming a sharp point at the corresponding boundary position. This can avoid the problem of the touch display panel being damaged by sharp discharge, which is beneficial to improving the reliability of the touch display panel. [Attached Image Description]

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a touch display panel provided in an embodiment of the present invention;

[0016] Figure 2 This is an enlarged schematic diagram of the edge area of ​​a touch display panel provided in an embodiment of the present invention;

[0017] Figure 3 This is an enlarged schematic diagram of the edge area of ​​another touch display panel provided in an embodiment of the present invention;

[0018] Figure 4 An enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention;

[0019] Figure 5 for Figure 4 A schematic diagram of a cross-section along AA';

[0020] Figure 6 An enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention;

[0021] Figure 7 An enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention;

[0022] Figure 8An enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention;

[0023] Figure 9 This is a schematic diagram of a display device provided in an embodiment of the present invention.

Detailed Implementation Methods

[0024] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0028] It should be understood that although the terms "first," "second," etc., may be used to describe touch electrode groups in the embodiments of the present invention, these touch electrode groups should not be limited to these terms. These terms are only used to distinguish touch electrode groups from each other. For example, without departing from the scope of the embodiments of the present invention, a first touch electrode group may also be referred to as a second touch electrode group, and similarly, a second touch electrode group may also be referred to as a first touch electrode group.

[0029] This invention provides a touch display panel, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of a touch display panel provided in an embodiment of the present invention. The touch display panel includes a display area AA and a non-display area NA. The display area AA includes multiple sub-pixels ( Figure 1 (Not shown). For example... Figure 1 As shown, the display area also includes multiple first touch electrode groups 1 and multiple second touch electrode groups 2. The non-display area NA includes multiple first touch signal lines 31 and multiple second touch signal lines 32.

[0030] like Figure 1As shown, the first touch electrode group 1 includes a plurality of first touch electrodes 10 arranged along a first direction x; the plurality of first touch electrode groups 1 are arranged along a second direction y, the first direction x and the second direction y intersect; in the same first touch electrode group 1, adjacent first touch electrodes 10 are electrically connected to each other. For example, as shown... Figure 1 As shown, two adjacent first touch electrodes 10 are electrically connected through a first connecting electrode 11. Optionally, the first connecting electrode 11 and the first touch electrode 10 can be respectively disposed in different film layers in the touch display panel, with a touch insulating layer between them. The touch insulating layer includes through holes, and the first connecting electrode 11 and the first touch electrode 10 are electrically connected through the through holes formed in the touch insulating layer.

[0031] like Figure 1 As shown, the second touch electrode group 2 includes a plurality of second touch electrodes 20 arranged along a second direction y. The plurality of second touch electrode groups 2 are arranged along a first direction x. In the same second touch electrode group 2, adjacent second touch electrodes 20 are electrically connected to each other. For example, as shown... Figure 1 As shown, two adjacent second touch electrodes 20 are electrically connected via a second connecting electrode 21. Optionally, the second connecting electrode 21 can be disposed in the same layer as the second touch electrode 20. The first touch electrode 10 and the second touch electrode 20 can also be disposed in the same layer.

[0032] For example, the first touch electrode 10 and the second touch electrode 20 described above include any one of transparent metal oxide materials such as indium tin oxide, indium zinc oxide, or indium gallium zinc oxide. Alternatively, the first touch electrode 10 and the second touch electrode 20 include metallic materials, and both can be designed as a metal mesh structure including holes, wherein the holes correspond to sub-pixels. This configuration improves the conductivity of the first touch electrode 10 and the second touch electrode 20 while preventing the first touch electrode 10 and the second touch electrode 20 from affecting the light emission of the sub-pixels, thus ensuring the display effect of the touch display panel.

[0033] Continue to refer to Figure 1 As shown, the non-display area NA also includes a pad area BA, which includes pads providing various signals. The pads are bonded to corresponding chips. A first touch pad (not shown) located in the pad area BA is electrically connected to a first touch electrode group 1 via a first touch signal line 31. A second touch pad (not shown) located in the pad area BA is electrically connected to a second touch electrode group 2 via a second touch signal line 32.

[0034] For example, one of the first touch electrode 10 and the second touch electrode 20 is a touch driving electrode, and the other is a touch sensing electrode. Taking the first touch electrode 10 as the touch driving electrode and the second touch electrode 20 as the touch sensing electrode as an example, when a touch operation is performed on the touch display panel, the touch chip (not shown) provides touch driving signals to the plurality of first touch electrode groups 1 one by one through the first touch signal line 31. When the touch display panel is touched, the touch sensing signal output by the second touch electrode 20 at the corresponding position changes. The touch chip can determine whether the touch display panel has been touched, and the specific touch position when the touch occurs, by analyzing the touch sensing signal.

[0035] Combination Figure 1 and Figure 2 As shown, Figure 2 This is an enlarged schematic diagram of the edge region of a touch display panel provided in an embodiment of the present invention. The edge region is the area near the edge E of the touch display panel. To more clearly illustrate the relative positional relationship between the first touch electrode 10, the second touch electrode 20, the first touch signal line 31, the second touch signal line 32, the shielding line 4, and the edge E of the touch display panel, in... Figure 2 Other structures besides those described above are not shown. The non-display area NA of the touch display panel also includes a shielding line 4, which is at least partially located between the first touch signal line 31 and the second touch signal line 32. The shielding line 4 comprises a conductive material. The shielding line 4 is insulated from both the first touch signal line 31 and the second touch signal line 32. For example, the shielding line 4 can be electrically connected to a pad (not shown) in the pad area BA that provides a shielded signal. For example, the shielding line 4 transmits a constant signal. The shielding line 4 reduces mutual interference between the different signals transmitted by the first touch signal line 31 and the second touch signal line 32, which helps improve the accuracy of the signals transmitted on the first touch signal line 31 and the second touch signal line 32, thereby improving the accuracy of touch operation.

[0036] like Figure 1 and Figure 2 As shown, the shielding line 4 includes a continuous portion 40. The continuous portion 40 refers to the shielding line 4 having a continuous, non-disconnected structure at this location. The continuous portion 40 corresponds to the boundary position 100 between the first touch electrode 10 and the second touch electrode 20. The first touch electrode 10 and the second touch electrode 20 are located on opposite sides of the boundary position 100. In this embodiment of the invention, the correspondence between the continuous portion 40 and the boundary position 100 means that the shortest distance between the continuous portion 40 and the boundary position 100 is less than the shortest distance between the continuous portion 40 and the first touch electrode 10, and that the shortest distance between the continuous portion 40 and the boundary position 100 is less than the shortest distance between the continuous portion 40 and the second touch electrode 20.

[0037] The touch display panel provided in this embodiment of the invention can reduce the crosstalk between the first touch signal line 31 and the second touch signal line 32 by setting the shielding line 4, which is beneficial to improving the accuracy of the signals transmitted on the first touch signal line 31 and the second touch signal line 32, thereby improving the accuracy of touch operation.

[0038] Furthermore, static electricity generation is unavoidable during the manufacturing, transportation, and use of touch display panels. In implementing this invention, the inventors discovered that static electricity easily generates point discharge at the cutoff position of the shielding line 4. Electrostatic discharge (ESD) causes the accumulation of static charge in the first touch electrode 10 or the second touch electrode 20, making the first connecting electrode 11 electrically connected to the first touch electrode 10 at the cutoff position of the shielding line 4 in the touch display panel a primary failure point. This invention, by providing a continuous portion 40 in the shielding line 4 corresponding to the boundary position 100, avoids the shielding line 4 from cutting off at the position corresponding to the boundary position 100, thereby preventing the shielding line 4 from forming a point at the position corresponding to the boundary position 100. This avoids damage to the touch display panel caused by point discharge, thus improving the reliability of the touch display panel.

[0039] It should be noted that, Figure 1 The numbers of the first touch electrode group 1 and the second touch electrode group 2 shown, the number of first touch electrodes 10 included in the first touch electrode group 1, the number of second touch electrodes 20 included in the second touch electrode group 2, and the number of first touch signal lines 31 connected to the same first touch electrode group 1 and the number of second touch signal lines 32 connected to the same second touch electrode group 2 are all illustrative and do not represent the actual number of corresponding structures in the touch display panel. Furthermore, Figure 1 The connection positions of the first touch signal line 31 and the first touch electrode group 1 shown are for illustrative purposes only, as are the connection positions of the second touch signal line 32 and the second touch electrode group 2. For example, in this embodiment of the invention, a first touch electrode group 1 can be connected to the pad area BA through two first touch signal lines 31, and these two first touch signal lines 31 can be led out from both ends of the first touch electrode group 1, which is not limited in this embodiment of the invention.

[0040] For example, such as Figure 2 As shown, the shielding wire 4 also includes a first sub-shielding wire 41 and a second sub-shielding wire 42 located on both sides of the continuous portion 40. The first sub-shielding wire 41 is connected to the second sub-shielding wire 42 through the continuous portion 40. Figure 2As shown, the first sub-shielding line 41 is located on the side of the second sub-shielding line 42 near the aforementioned dividing position 100. Furthermore, the first sub-shielding line 41 is located between the first touch signal line 31 and the second touch signal line 32. Exemplarily, in a direction perpendicular to the plane of the touch display panel, embodiments of the present invention can make the second sub-shielding line 42 at least partially overlap with the first touch signal line 31 or the second touch signal line 32. Figure 2 The diagram shows an example of overlapping the second sub-shielding line 42 with the second touch signal line 32.

[0041] Optional, continue to refer to Figure 2 The shielding wire 4 also includes a cut-off end M, which is located on the side of the continuous portion 40 away from the dividing position 100. For example... Figure 2 As shown, in this embodiment of the invention, the cutoff end M can be disposed on the side of the continuous portion 40 near the edge E of the touch display panel. With this arrangement, when a tip discharge occurs at the cutoff end M, since the distance between the cutoff end M and the first touch electrode group 1 and the second touch electrode group 2 in the display area AA is relatively large, the impact of the tip discharge at the cutoff end M on the first touch electrode group 1 and / or the second touch electrode group 2 disposed in the display area AA can be controlled to a small extent.

[0042] Optional, such as Figure 3 As shown, Figure 3 This is an enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention. In this embodiment, the cutoff end M can include a pointed structure protruding towards the edge E of the touch display panel. When excessive static electricity accumulates in the shielding line 4, the static electricity can be released through this pointed structure, reducing the amount of static electricity in the shielding line 4. Furthermore, by making the pointed structure formed by the cutoff end M protrude towards the edge E of the touch display panel—that is, along the direction from the first sub-shielding line 41 to the edge E of the touch display panel—the width of the pointed structure gradually decreases. The width direction of the pointed structure is perpendicular to its extension direction. This configuration avoids affecting the first touch electrode group 1 and / or the second touch electrode group 2 during tip discharge.

[0043] For example, in combination Figure 1 and Figure 4 As shown, Figure 4This is an enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention. The touch display panel also includes a grounding wire 5, which is located on the side of the continuous portion 40 near the edge E of the touch display panel. The continuous portion 40 of the shielding wire 4 is electrically connected to the grounding wire 5. This arrangement avoids the shielding wire 4 forming a cutoff end at the boundary position 100 corresponding to the first touch electrode 10 and the second touch electrode 20. Furthermore, when static electricity accumulates in the shielding wire 4, the static charge can be conducted away through the grounding wire 5, thereby reducing the possibility of electrostatic discharge damage to the components in the touch display panel and improving the reliability of the touch display panel.

[0044] In this embodiment of the invention, optionally, the width of the grounding wire 5 is greater than or equal to the width of the first sub-shielding wire 41, and the width of the first sub-shielding wire 41 is greater than or equal to the width of the first touch signal wire 31. The width direction of the grounding wire 5 is perpendicular to its extension direction. The width direction of the first sub-shielding wire 41 is perpendicular to its extension direction. This configuration improves the reliability of the touch display panel while maintaining compatibility with the process capabilities of existing production lines and equipment. Figure 3 As shown, the width of the grounding wire 5 is greater than the width of the first sub-shielding wire 41, and the width of the first sub-shielding wire 41 is greater than the width of the first touch signal wire 31.

[0045] like Figure 5 As shown, Figure 5 for Figure 4 A cross-sectional schematic diagram along AA' shows that, in this embodiment of the invention, the first sub-shielding wire 41 and the grounding wire 5 can be arranged on the same layer, while the second sub-shielding wire 42 and the grounding wire 5 can be arranged on different layers. For example... Figure 5 As shown, the first sub-shielding line 41 and the second sub-shielding line 42 are located on the same side of the substrate 200. An insulating layer 400 is included between the first sub-shielding line 41 and the second sub-shielding line 42 along a direction perpendicular to the plane of the substrate 200. The insulating layer 400 includes a first through-hole H1 and a second through-hole H2. The first sub-shielding line 41 is electrically connected to the second sub-shielding line 42 through the first through-hole H1. The aforementioned continuous portion 40 includes the first through-hole H1. The second sub-shielding line 42 is electrically connected to the grounding wire 5 through the second through-hole H2.

[0046] Optional, such as Figure 6 As shown, Figure 6This is an enlarged schematic diagram of the edge region of a touch display panel according to another embodiment of the present invention. The pad region BA includes a first pad 61 and a second pad 62. In this embodiment, one end of the first sub-shielding line 41 can be connected to the first pad 61, and one end of the second sub-shielding line 42 can be connected to the second pad 62; the other end of the first sub-shielding line 41 is electrically connected to the other end of the second sub-shielding line 42 through a continuous portion 40. This configuration allows the shielding line 4 to form a U-shaped structure at the continuous portion 40, avoiding the formation of a cutoff end in the shielding line 4. For example, when the touch display panel is operating, the signals transmitted by the first pad 61 and the second pad 62 are the same.

[0047] like Figure 6 As shown, the pad area BA also includes a first touch pad 71 and a second touch pad 72. The first touch pad 71 is connected to the first touch signal line 31. The second touch pad 72 is connected to the second touch signal line 32.

[0048] Optional, based on Figure 6 As shown in the embodiment of the present invention, the first sub-shielding line 41, the second sub-shielding line 42 and the continuous portion 40 can be arranged in the same layer to reduce the thickness of the display panel and realize the thin design of the touch display panel.

[0049] For example, such as Figure 6 As shown, the shortest distance d between the first sub-shielding line 41 and the second sub-shielding line 42 is greater than or equal to the width of the first touch signal line 31. This avoids overlap between the two lines while maintaining compatibility with existing equipment and manufacturing capabilities. Optionally, such as... Figure 6 As shown, the first sub-shielding line 41 and the second sub-shielding line 42 are arranged in parallel to reduce the space occupied by the first sub-shielding line 41 and the second sub-shielding line 42 and increase the screen ratio of the touch display panel.

[0050] Optional, such as Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the extending direction of the first sub-shielding line 41 and the extending direction of the continuous portion 40 may intersect. In this embodiment of the invention, the included angle θ between the first sub-shielding line 41 and the continuous portion 40 is greater than or equal to 90° to avoid forming a relatively sharp tip structure at the intersection of the first sub-shielding line 41 and the continuous portion 40, thereby reducing the risk of tip discharge at that location and improving the reliability of the touch display panel. Figure 2 , Figure 3 , Figure 4 and Figure 6 In the diagram, the angle between the first sub-shielding line 41 and the continuous part 40 is 90°.

[0051] In this embodiment of the invention, the width of the continuous portion 40 is greater than or equal to the width of the first touch signal line 31. This configuration can reduce the resistance of the continuous portion 40 and decrease the amount of static charge accumulated at the location of the continuous portion 40. On the other hand, it can also be compatible with existing equipment and process capabilities.

[0052] For example, such as Figure 7 As shown, Figure 7 This is an enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention. The touch display panel further includes a dummy electrode 12, which is located at the boundary position 100 between the first touch electrode 10 and the second touch electrode 20. The dummy electrode 12 does not carry an electrical signal; that is, it is floating. When the touch display panel performs touch operation, the first touch electrode 10 and the second touch electrode 20 transmit different signals. The dummy electrode 12 reduces mutual interference between different signals, which helps to shorten the charging time of the first touch electrode 10 and / or the second touch electrode 20. For example, the first touch electrode 10, the second touch electrode 20, and the dummy electrode 12 can be arranged in the same layer.

[0053] It should be noted that the number of dummy electrodes 12 between the first touch electrode 10 and the adjacent second touch electrode 20 can be one or more. Figure 7 The diagram illustrates the use of two dummy electrodes 12 between the first touch electrode 10 and the adjacent second touch electrode 20.

[0054] In embodiments of the present invention, such as Figure 7 As shown, the continuous portion 40 corresponds to the dummy electrode 12. If an electrostatic discharge problem occurs at the location of the continuous portion 40, the dummy electrode 12 can prevent the first touch electrode 10 or the second touch electrode 20 from being affected by electrostatic discharge, which helps to improve the reliability of the touch display panel.

[0055] In designing this touch display panel, embodiments of the present invention can design the shape of the touch display panel to be a regular shape. For example, as... Figure 1 As shown, in embodiments of the present invention, the touch display panel can be designed as a rectangle. Alternatively, in embodiments of the present invention, the touch display panel can be designed as an irregularly shaped display panel, which is a non-rectangular shape. For example, the shape of the touch display panel can be circular or elliptical. Alternatively, the touch display panel can be a rounded rectangle shape including rounded corners (R-corners).

[0056] For example, such as Figure 8 As shown, Figure 8This is an enlarged schematic diagram of the edge region of another touch display panel provided in an embodiment of the present invention. The touch display panel includes an irregularly shaped touch unit 8 and a plurality of conventional touch units 9. The irregularly shaped touch unit 8 is located on the side of the conventional touch unit 9 near the edge E of the touch display panel. In this embodiment of the present invention, the conventional touch unit 9 is the smallest repeating unit in the touch display panel. Figure 8 As shown, multiple conventional touch units 9 are arranged in an array along the first direction x and the second direction y.

[0057] like Figure 8 As shown, both the conventional touch unit 9 and the irregularly shaped touch unit 8 include the aforementioned first touch electrode 10 and second touch electrode 20. In this embodiment of the invention, the area of ​​the first touch electrode 10 included in the irregularly shaped touch unit 8 is smaller than the area of ​​the first touch electrode 10 included in the conventional touch unit 9, and / or, the area of ​​the second touch electrode 20 included in the irregularly shaped touch unit 8 is smaller than the area of ​​the second touch electrode 20 included in the conventional touch unit 9. Figure 8 This is an illustration of a first touch electrode 10 included in an irregularly shaped touch unit 8 having an area smaller than the area of ​​the first touch electrode 10 included in a conventional touch unit 9, and a second touch electrode 20 included in an irregularly shaped touch unit 8 having an area smaller than the area of ​​the second touch electrode 20 included in a conventional touch unit 9. For example... Figure 8 As shown, when the touch display panel is set to a shape including rounded corners, the irregularly shaped touch unit 8 corresponding to the rounded corners of the display panel includes an arc-shaped edge that is approximately parallel to the edge of the display panel.

[0058] like Figure 8 As shown, in a touch display panel with an irregular shape, the shortest distance between the continuous portion 40 and the irregularly shaped touch unit 8 is less than the shortest distance between the continuous portion 40 and the conventional touch unit 9. That is, the continuous portion 40 included in the shielding line 4 is positioned closer to the irregularly shaped touch unit 8. In related technologies, because the area of ​​each touch electrode in the irregularly shaped touch unit 8 is small, static electricity easily accumulates in the irregularly shaped touch unit 8, making it a weak point in static electricity. In this embodiment of the invention, by positioning the continuous portion 40 close to the irregularly shaped touch unit 8, and positioning the continuous portion 40 at the boundary position between the first touch electrode 10 and the second touch electrode 20 of the irregularly shaped touch unit 8, the reliability of the irregularly shaped touch unit 8 is improved, thereby improving the reliability of the touch display panel.

[0059] This invention also provides a display device, such as... Figure 9 As shown, Figure 9 This is a schematic diagram of a display device provided in an embodiment of the present invention. The display device includes the display panel 1000 described above. The specific structure of the display panel 1000 has been described in detail in the above embodiments and will not be repeated here. Figure 9The display device shown is for illustrative purposes only. The display device can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader or television.

[0060] The display device provided in this embodiment of the invention can reduce crosstalk between the first touch signal line and the second touch signal line by setting a shielding line in the touch display panel, which is beneficial to improving the accuracy of the signals transmitted on the first touch signal line and the second touch signal line, thereby improving the accuracy of touch operation.

[0061] Furthermore, by providing a continuous portion in the shielding line corresponding to the boundary position, the embodiments of the present invention can prevent the shielding line from being cut off at the corresponding boundary position, thereby preventing the shielding line from forming a sharp point at the corresponding boundary position. This can avoid the problem of the touch display panel being damaged by sharp discharge, which is beneficial to improving the reliability of the touch display panel.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A touch display panel, characterized in that, The touch display panel comprises: a plurality of first touch electrode groups, each of the first touch electrode groups comprising a plurality of first touch electrodes arranged along a first direction; a plurality of the first touch electrode groups arranged along a second direction, the first direction intersecting the second direction; in the same first touch electrode group, two adjacent first touch electrodes are electrically connected to each other; a plurality of second touch electrode groups, each of the second touch electrode groups comprising a plurality of second touch electrodes arranged along the second direction; a plurality of the second touch electrode groups arranged along the first direction; in the same second touch electrode group, two adjacent second touch electrodes are electrically connected to each other; a plurality of first touch signal lines, each of the first touch signal lines being electrically connected to the first touch electrode groups; a plurality of second touch signal lines, each of the second touch signal lines being electrically connected to the second touch electrode groups; a shielding line, the shielding line being at least partially located between the first touch signal lines and the second touch signal lines; the shielding line comprises a continuous portion corresponding to a boundary position between the first touch electrodes and the second touch electrodes, the continuous portion can avoid the shielding line being cut off at a position corresponding to the boundary position; the shielding line comprises a first sub-shielding line and a second sub-shielding line located on two sides of the continuous portion; the second sub-shielding line is located between the first touch signal lines and the second touch signal lines; the touch display panel comprises a first pad and a second pad; one end of the first sub-shielding line is electrically connected to the first pad, and one end of the second sub-shielding line is electrically connected to the second pad; the other end of the first sub-shielding line is electrically connected to the other end of the second sub-shielding line through the continuous portion. The first touch electrodes and the second touch electrodes are both metal mesh structures comprising mesh holes, and the mesh holes correspond to sub-pixels in a direction perpendicular to a plane on which the touch display panel is located. 2.The touch display panel of claim 1, wherein, The touch display panel comprises a special-shaped touch unit and a plurality of regular touch units, and the special-shaped touch unit is located on a side of the regular touch units close to an edge of the touch display panel; The regular touch units are arranged in an array along the first direction and the second direction; The regular touch units and the special-shaped touch unit both comprise the first touch electrodes and the second touch electrodes; the area of the first touch electrodes comprised by the special-shaped touch unit is smaller than the area of the first touch electrodes comprised by the regular touch units, and / or the area of the second touch electrodes comprised by the special-shaped touch unit is smaller than the area of the second touch electrodes comprised by the regular touch units; The shortest distance between the continuous portion and the special-shaped touch unit is smaller than the shortest distance between the continuous portion and the regular touch units.

3. The touch display panel of claim 1, wherein: the first sub-shielding line is connected to the second sub-shielding line through the continuous portion; the first sub-shielding line is located on a side of the second sub-shielding line close to the boundary position.

4. The touch display panel of claim 3, wherein: The touch display panel further comprises a ground line, the ground line is located at one side of the continuous part close to the edge of the touch display panel; the continuous part is electrically connected with the ground line. 5.The touch display panel of claim 4, wherein, The first sub-shielding line is arranged in the same layer as the ground line, and the second sub-shielding line is arranged in a different layer from the ground line. 6.The touch display panel of claim 4, wherein, The width of the ground line is greater than or equal to the width of the first sub-shielding line, and the width of the first sub-shielding line is greater than or equal to the width of the first touch signal line. 7.The touch display panel of claim 1, wherein, The first sub-shielding line, the second sub-shielding line, and the continuous part are arranged in the same layer. 8.The touch display panel of claim 1, wherein, The shortest distance between the first sub-shielding line and the second sub-shielding line is greater than or equal to the width of the first touch signal line. 9.The touch display panel of claim 3, wherein, The included angle between the first sub-shielding line and the continuous part is greater than or equal to 90°. 10.The touch display panel of claim 1, wherein, Further comprising a dummy electrode, the dummy electrode is located between the first touch electrode and the second touch electrode; the continuous part corresponds to the dummy electrode. 11.The touch display panel of claim 1, wherein, The width of the continuous part is greater than or equal to the width of the first touch signal line.

12. A display device comprising: The touch display panel of any one of claims 1-11.

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