Touch display panel and its working method, and display device

Abstract

The present invention discloses a touch display panel and its working method and display device, belonging to the field of display technology. The display area of ​​the touch display panel includes multiple touch electrodes, and the multiple touch electrodes include at least multiple first touch electrodes and multiple second touch electrodes; the display area includes a first area and a second area arranged adjacent to each other, the multiple first touch electrodes are located in the first area, the multiple second touch electrodes are located in the second area, and the multiple first touch electrodes include at least one first touch electrode A adjacent to the second area; when detecting the first touch electrode A, the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on. The working method is applied to the above-mentioned touch display panel. The display device includes the above-mentioned touch display panel. The present invention can ensure the display effect while accurately detecting whether the touch electrode is short-circuited, thereby improving the product yield.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to a touch display panel and a working method thereof, and a display device. Background Art

[0002] With the progress of the information age, touch screen technology has gradually replaced key technology to become the mainstream technology for mobile terminals. Touch screen technology is a technology that determines the input information by detecting the touched position (in the form of coordinates) when a finger, pen, etc. touches the touch screen installed at the front of the display device and sending it to the terminal. At present, the application range of touch screens is very wide. The main products include touch-screen mobile phones, wearable devices, laptops and other mobile terminals, as well as human-machine display interfaces in the industrial automation industry, so that display devices can realize human-machine interaction functions in a simple and convenient way.

[0003] In order to realize the touch function of the display device, it is usually necessary to introduce touch electrodes in the display device. Different touch electrodes are insulated from each other, and the corresponding touch operation is realized by detecting the signal change on each touch electrode. During the manufacturing process, the conductive layer such as the metal layer used to make the touch electrode needs to be disconnected to achieve insulation. However, in the process of preparing the touch conductive layer, some metal residues will be generated due to process reasons. The metal residues will cause short circuits between different touch electrodes, resulting in poor touch and poor touch detection performance, which can easily cause the touch function to fail.

[0004] Therefore, it is a technical problem that needs to be solved urgently by those skilled in the art to provide a touch display panel and its working method and display device that can ensure display effects while accurately detecting whether the touch electrode is short-circuited, thereby improving product yield. Summary of the invention

[0005] In view of this, the present invention provides a touch display panel and its working method and display device to solve the problem in the prior art that the detection of whether there is a short circuit between touch electrodes is not accurate enough, which easily leads to poor touch and poor touch detection performance, resulting in failure of the touch function.

[0006] The present invention discloses a touch display panel, comprising: a display area and a non-display area arranged around the display area; the display area comprises a plurality of touch electrodes arranged in an array, the plurality of touch electrodes at least comprising a plurality of first touch electrodes and a plurality of second touch electrodes; the display area comprises a first area and a second area adjacently arranged along a first direction, the plurality of first touch electrodes are located in the first area, n1 first touch electrodes are arranged along the first direction to form a first touch electrode column, and m first touch electrode columns are arranged along the second direction; the plurality of second touch electrodes are located in the second area, n2 second touch electrodes are arranged along the first direction to form a second touch electrode column, and m second touch electrode columns are arranged along the second direction; wherein, the first touch electrodes are arranged in the second area, n2 second touch electrodes are arranged in the first direction to form a second touch electrode column, and m second touch electrode columns are arranged along the second direction; The direction intersects with the second direction, n1, n2, and m are all positive integers; the multiple first touch electrodes include at least one first touch electrode A adjacent to the second area; the non-display area includes at least a first detection circuit, a second detection circuit, a third detection circuit, and a fourth detection circuit, the first detection circuit is electrically connected to the first touch electrode column of the first area, the second detection circuit is electrically connected to the second touch electrode column of the second area, the third detection circuit is electrically connected to the first touch electrode column of the first area, and the fourth detection circuit is electrically connected to the second touch electrode column of the second area; when detecting the first touch electrode A, the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on.

[0007] Based on the same inventive concept, the present invention also discloses a working method of a touch display panel, which is applied to the above-mentioned touch display panel; the working method includes at least a first detection stage, in which the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on; the first detection circuit provides a first short-circuit detection signal to the first touch electrode A, the first detection circuit provides a second short-circuit detection signal to at least multiple other first touch electrodes adjacent to the first touch electrode A in the first area, and the fourth detection circuit provides a second short-circuit detection signal to multiple second touch electrodes adjacent to the first touch electrode A in the second area.

[0008] Based on the same inventive concept, the present invention further discloses a display device, which includes the above-mentioned touch display panel.

[0009] Compared with the prior art, the touch display panel and its working method and display device provided by the present invention achieve at least the following beneficial effects:

[0010] In the touch display panel provided by the present invention, through the setting of the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit, it can not only be applicable to large-sized touch display panels, while ensuring the touch accuracy of the large-sized panel, but also can increase the number of signal transmission channels by designing the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit electrically connected to the touch electrode, thereby reducing the power consumption of the panel. And when the present invention detects the touch electrode at the boundary position between the first area and the second area in the display area through the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit, the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on, so that the first detection circuit provides a first short-circuit detection signal to the first touch electrode, the first detection circuit provides a second short-circuit detection signal to at least the other multiple first touch electrodes adjacent to the first touch electrode in the first area, and the fourth detection circuit provides a second short-circuit detection signal to the multiple second touch electrodes adjacent to the first touch electrode in the second area, so as to achieve effective detection of the touch electrode at the boundary position between the first area and the second area, which is conducive to improving the detection accuracy and ensuring the product yield.

[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0012] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0014] Figure 1 It is a schematic diagram of a planar structure of a touch display panel in the related art;

[0015] Figure 2 yes Figure 1 A schematic diagram of the local enlarged structure of the middle part;

[0016] Figure 3 is a schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0017] Figure 4 yes Figure 3 A schematic diagram of the local enlarged structure of the middle part;

[0018] Figure 5 yes Figure 3 Another schematic diagram of the local enlarged structure of the middle part area;

[0019] Figure 6 yes Figure 3 Another schematic diagram of the local enlarged structure of the middle part area;

[0020] Figure 7 yes Figure 3 Another schematic diagram of the local enlarged structure of the middle part area;

[0021] Figure 8 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0022] Fig. 9 yes Figure 8 A schematic diagram of a local enlarged structure of a part of the middle area;

[0023] Fig.10 yes Fig. 9 A schematic diagram of a local connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column;

[0024] Fig.11 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0025] Fig.12 yes Fig.11 A schematic diagram of a local enlarged structure of a part of the middle area;

[0026] Fig.13 yes Fig.12 A schematic diagram of a local connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column;

[0027] Fig.14 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0028] Fig.15 yes Fig.14 A schematic diagram of a local enlarged structure of a part of the middle area;

[0029] Fig.16 yes Fig.14 Another schematic diagram of the local enlarged structure of the middle part area;

[0030] Fig.17 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0031] Fig.18 yes Fig.17 A schematic diagram of a local enlarged structure of a part of the middle area;

[0032] Fig.19 yes Fig.18A schematic diagram of a local connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column;

[0033] Fig. 20 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention;

[0034] Fig.21 yes Fig. 20 A schematic diagram of a local enlarged structure of a part of the middle area;

[0035] Fig. 22 is a schematic diagram of a working method of a touch display panel provided by an embodiment of the present invention;

[0036] Fig.23 is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention;

[0037] Fig.24 is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention;

[0038] Fig.25 is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention;

[0039] Fig.26 is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention;

[0040] Fig. 27 is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention;

[0041] Fig.28 It is a schematic diagram of a planar structure of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0045] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0046] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] With the development of self-capacitive touch display technology in the prior art, the common electrode of the array substrate in the display panel can generally be used as a touch sensing electrode for self-capacitive touch detection. By time-sharing drive and time-sequential touch control and display control, the touch and display functions can be realized simultaneously. Specifically, the common electrode is divided into multiple block electrodes, each block electrode is connected to the same driver chip through wiring, and the driver chip provides touch or display signals to each common electrode (touch electrode), such as providing touch sensing signals to the corresponding block electrodes in the touch timing, and providing display driving voltages to the corresponding block electrodes in the display timing. However, with the gradual development of larger screen sizes, the number of channels that a driver chip (IC, Integrated Circuit) can provide for transmitting signals to the electrode blocks is no longer sufficient to drive the number of block electrodes required on the entire panel, unless the area of ​​a single electrode block is increased for the design of large-size screens, but this will seriously affect the touch accuracy.

[0048] Therefore, the related art proposes to realize the splitting of touch signals through mux (multi-channel selection) technology, which can improve the touch accuracy and increase the number of signal transmission channels of block electrodes to reduce the power consumption of the panel. Figure 1 and Figure 2 As shown, Figure 1 is a schematic diagram of a planar structure of a touch display panel in the related art, Figure 2 yes Figure 1 The schematic diagram of the local enlarged structure of the middle part of the area is as follows Figure 1 The touch display panel shown drives some electrode blocks in the screen through the TPMUX1' circuit architecture, and the remaining electrode blocks through the TPMUX2' circuit architecture, which can provide a sufficient number of signal transmission channels. However, when the touch display panel with this structure is tested for short circuits between touch electrodes, some areas cannot be tested, which seriously affects the output yield. Figure 1As shown, the inventors have found that if a part of the touch display panel 000', such as the touch electrode TP' in the upper half screen AA1', is connected to the TPMUX1' circuit architecture, and a detection or touch driving signal is provided through the TPMUX1' circuit architecture, and other areas of the touch display panel 000', such as the touch electrode TP' in the lower half screen AA2', are connected to the TPMUX2' circuit architecture, and a detection or touch driving signal is provided through the TPMUX2' circuit architecture, the TPMUX1' circuit architecture and the TPMUX2' circuit architecture are time-sharingly opened to drive the touch electrodes TP' in different areas, and during display control, the touch display panel The touch electrode TP' in the upper half screen AA1' of the touch display panel 000' is connected to the VTCOM1' circuit architecture, and the touch electrode TP' in the lower half screen AA2' of the touch display panel 000' is connected to the VTCOM2' circuit architecture. The VTCOM1' circuit architecture and the VTCOM2' circuit architecture provide a common voltage signal for each common electrode (touch electrode TP') in the entire panel. Although it can effectively ensure a sufficient number of channels for signal transmission, when the touch electrode TP' at the boundary position of the upper half screen AA1' and the lower half screen AA2' of the touch display panel 000' is short-circuited, such as Figure 1 and Figure 2When the touch electrode TPA' in the upper screen AA1' is detected to see whether it is short-circuited with other surrounding touch electrodes TPB', touch electrode TPC', touch electrode TPD' and touch electrode TPE', if an AC signal (AC signal, AC is the abbreviation of Alternating Current, such as an AC voltage greater than 0V) is input to the touch electrode TPA' through the TPMUX1' circuit architecture, and a DC signal (DC signal, DC is the abbreviation of direct current, such as a DC voltage of 0V) is input to the touch electrode TPB', touch electrode TPC' and touch electrode TPD' in the upper screen AA1' through the TPMUX2' circuit architecture, the touch electrode TPE' in the lower screen AA2' can only be input with an AC signal (AC signal) through the VTCOM2' circuit architecture. If there is metal residue between the touch electrode TPA' and any of the surrounding touch electrodes TPB', touch electrode TPC' and touch electrode TPD', a short circuit occurs. The touch electrode TPA' is fed with an AC signal, while the touch electrode TPB', the touch electrode TPC', and the touch electrode TPD' are fed with DC signals. Therefore, once the touch electrode TPA' is short-circuited with any of the touch electrodes TPB', TPC', and TPD', the AC signal voltage of the touch electrode TPA' will be pulled down by the DC signal, and the amount of the detection data signal fed back to the detection chip (such as the driver chip) will change significantly, that is, the detection signal will be abnormal. Therefore, it is relatively easy to detect whether the touch electrode TPA' is short-circuited with the touch electrode TPB', the touch electrode TPC', and the touch electrode TPD'. However, the touch electrode TPA' and the touch electrode TPE' are both fed with AC signals, and the signals of the two are relatively close. Even if the touch electrode TPA' and the touch electrode TPE' are short-circuited, the detected data signal amount will not change much. Therefore, even if a short circuit occurs between the touch electrode TPA' and the touch electrode TPE', no obvious abnormal change in the signal can be detected. That is, the touch electrode TPA' and the touch electrode TPE' are short-circuited. Figure 1 The illustrated panel structure still has the problem that some areas, especially the split-screen positions, cannot be effectively and accurately detected to determine whether a short circuit exists, which seriously affects the output yield of the product.

[0049] Based on the above problems, the present application proposes a touch display panel and its working method, and a display device, which can improve the touch accuracy, ensure the display effect, and accurately detect whether the touch electrode is short-circuited, thereby effectively improving the product yield. The specific embodiments of the touch display panel and its working method, and the display device proposed in the present application are described in detail as follows.

[0050] Please refer to Figure 3 and Figure 4 , Figure 3 is a schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Figure 4 yes Figure 3 A partial enlarged structural diagram of a part of the middle area, a touch display panel 000 provided in this embodiment includes: a display area AA and a non-display area NA arranged around the display area AA; the display area AA includes a plurality of touch electrodes 10 arranged in an array, and the plurality of touch electrodes 10 at least include a plurality of first touch electrodes 101 and a plurality of second touch electrodes 102;

[0051] The display area AA includes a first area AA1 and a second area AA2 adjacently arranged along a first direction Y, a plurality of first touch electrodes 101 are located in the first area AA1, n1 first touch electrodes 101 are arranged along the first direction Y to form a first touch electrode column 101L, and m first touch electrode columns 101L are arranged along the second direction X; a plurality of second touch electrodes 102 are located in the second area AA2, n2 second touch electrodes 102 are arranged along the first direction Y to form a second touch electrode column 102L, and m second touch electrode columns 102L are arranged along the second direction X; wherein the first direction Y intersects the second direction X, and n1, n2, and m are all positive integers;

[0052] The plurality of first touch electrodes 101 include at least one first touch electrode A adjacent to the second area AA2 , namely, the first touch electrode 101A;

[0053] The non-display area NA at least includes a first detection circuit 20, a second detection circuit 30, a third detection circuit 40 and a fourth detection circuit 50, the first detection circuit 20 is electrically connected to the first touch electrode column 101L of the first area AA1, the second detection circuit 30 is electrically connected to the second touch electrode column 102L of the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L of the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L of the second area AA2;

[0054] When detecting the first touch electrode 101A (a first touch electrode 101 adjacent to the second area AA2 ), the first detection circuit 20 is turned on, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned on.

[0055] Specifically, the touch display panel 000 provided in this embodiment may not only include a display function, but also have a touch function. Taking the touch display panel 000 of this embodiment adopting the self-capacitance mode as an example, the touch display panel 000 includes a display area AA and a non-display area NA arranged around the display area AA. The display area AA is used to set a structure for realizing the display function, such as a pixel unit, etc., to realize the display function of the touch display panel 000. The non-display area NA can be used to set a signal routing, a driving circuit, etc. for providing a display or touch driving signal for the touch display panel 000. The display area AA includes a plurality of touch electrodes 10 arranged in an array. Taking self-capacitance touch as an example, the plurality of touch electrodes 10 arranged in an array can be made of a conductive material to form a horizontal and vertical electrode array. The touch electrodes 10 arranged in the horizontal and vertical directions respectively form a capacitor with the ground. The capacitor is usually the self-capacitance mentioned in the self-capacitance touch technology, that is, the capacitance of the touch electrode 10 to the ground. When a touch subject such as a finger or a stylus touches the touch display panel 000, the capacitance of the touch subject such as a finger or a stylus will be superimposed on the capacitance of the touch display panel 000, so that the capacitance of the touch display panel 000 increases. When determining the touch position, the changes in the capacitance of the horizontal touch electrode 10 and the vertical touch electrode 10 before and after the touch can be detected respectively, so that the horizontal coordinate and the vertical coordinate can be determined respectively, and then combined into the touch coordinates of the plane to determine the touch position. It can be understood that this embodiment only takes the self-capacitance touch technology of the touch display panel 000 as an example for illustration. In specific implementation, the touch display panel 000 can also adopt other technologies such as mutual capacitance touch technology. This embodiment will not be described in detail here. For details, please refer to the structure of the touch panel in the relevant technology for understanding.

[0056] The display area AA of the present embodiment includes a first area AA1 and a second area AA2 adjacently arranged along a first direction Y, that is, the entire display area AA of the touch display panel 000 can be divided into at least two areas, the first area AA1 and the second area AA2. The plurality of touch electrodes 10 at least include a plurality of first touch electrodes 101 and a plurality of second touch electrodes 102. The plurality of first touch electrodes 101 are located in the first area AA1, and the plurality of second touch electrodes 102 are located in the second area AA2. The touch electrodes 10 in different areas are connected to different drive circuits (such as a display drive circuit, a touch drive circuit, a detection drive circuit, etc.). Although different drive circuits are used to realize different drive functions, their signals all need to be bound to the drive circuit on the panel. The touch control display panel 000 is provided by a dynamic chip or a flexible circuit board. In this embodiment, the entire display area AA is divided into at least two areas, a first area AA1 and a second area AA2 (in specific implementation, it can also be three or more areas, and this embodiment is only illustrated by two areas). The touch electrodes 10 in different areas are connected to different drive circuits, which can be beneficial to reduce the number of signal channels provided by the drive chip or the flexible circuit board (such as helping to reduce the number of pads provided by the drive chip or the flexible circuit board). Different drive circuits can be transmitted in time-sharing manner by the same signal channel provided by the drive chip or the flexible circuit board. It is suitable for large-size touch display panel 000, and can also ensure the touch accuracy of the large-size panel, and the touch resolution is effectively improved.

[0057] The plurality of first touch control electrodes 101 of the present embodiment may be arranged in an array in the first area AA1, that is, n1 first touch control electrodes 101 are arranged along the first direction Y( Figure 3 The m first touch electrode rows 101L are arranged in the second direction X( Figure 3 The plurality of second touch electrodes 102 may be arranged in an array in the second area AA2, wherein n2 second touch electrodes 102 are arranged along the first direction Y to form a second touch electrode column 102L, and m second touch electrode columns 102L are arranged along the second direction X to form an array arrangement structure. The first direction Y intersects with the second direction X, and n1, n2, and m are all positive integers. It can be understood that the present embodiment is illustrated by taking the first direction Y and the second direction X as being perpendicular to each other in a direction parallel to the light emitting surface of the touch display panel 000. The first area AA1 of the present embodiment includes at least one first touch electrode A adjacent to the second area AA2, such as Figure 3 Schematic diagram of a first touch electrode 101A.

[0058] It can be understood that in this embodiment, in the second direction X, the number of the first touch electrode columns 101L and the number of the second touch electrode columns 102L can both be m, that is, the number of the first touch electrode columns 101L and the number of the second touch electrode columns 102L in the second direction X can be the same, so that one first touch electrode column 101L can correspond to one second touch electrode column 102L along the second direction X, forming a complete touch electrode column. Optionally, n1 first touch electrodes 101L along the first direction Y( Figure 3 The n2 second touch electrodes 102 are arranged along the first direction Y ( Figure 3 The first touch electrodes 101 and the second touch electrodes 102 are arranged in the longitudinal direction of the first area AA1 to form a second touch electrode column 102L. n1 may be equal to or different from n2, that is, the number of rows of the first touch electrodes 101 in the first area AA1 and the number of rows of the second touch electrodes 102 in the second area AA2 may be different or the same, which is conducive to free division of the area of ​​the first area AA1 and the second area AA2 and improves the flexibility of use.

[0059] In order to solve the problem in the prior art that when detecting the touch electrodes, some areas, especially the split screen positions, cannot be effectively and accurately detected whether they are short-circuited, thereby seriously affecting the output yield of the product (such as Figure 1 and Figure 2In order to further improve the detection accuracy of whether the touch electrodes at adjacent positions of the first area AA1 and the second area AA2 are short-circuited, the present embodiment arranges the non-display area NA to include at least a first detection circuit 20, a second detection circuit 30, a third detection circuit 40 and a fourth detection circuit 50. The first detection circuit 20 is electrically connected to the first touch electrode column 101L of the first area AA1, the second detection circuit 30 is electrically connected to the second touch electrode column 102L of the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L of the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L of the second area AA2. Optionally, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 can all be mux circuit structures (not shown in the figure), so that the mux circuit structure can be used to realize electrical connection with the touch electrodes 10 in different areas of the touch display panel 000, and provide touch or display signals for the touch electrodes 10 to ensure that the area of ​​the touch electrodes 10 can be small enough to meet the touch accuracy requirements. At the same time, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 electrically connected to the touch electrodes 10 can be designed to be mux circuit structures to increase the number of signal transmission channels (the detection circuit can be subsequently connected to the driving chip or flexible circuit board bound to the touch display panel 000, not shown in the figure), thereby reducing the power consumption of the panel. Optionally, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 in the non-display area NA of this embodiment can be electrically connected to the touch electrodes 10 in the display area AA through the touch signal line 60, respectively.

[0060] It can be understood that the present embodiment does not specifically limit the specific circuit structures of the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50. It is only required that the first detection circuit 20 can be electrically connected to the first touch electrode column 101L of the first area AA1 through multiple touch signal lines 60, the second detection circuit 30 can be electrically connected to the second touch electrode column 102L of the second area AA2 through multiple touch signal lines 60, the third detection circuit 40 can be electrically connected to the first touch electrode column 101L of the first area AA1 through multiple touch signal lines 60, and the fourth detection circuit 50 can be electrically connected to the second touch electrode column 102L of the second area AA2 through multiple touch signal lines 60. The first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 can be a mux circuit structure including a signal input terminal and at least one signal output terminal, which is not described in detail in the present embodiment.

[0061] In this embodiment, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 are arranged so that when the first touch electrode 101A (a first touch electrode 101 adjacent to the second area AA2) is detected, the first detection circuit 20 is turned on, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned on, that is, the first touch electrode 101A and other touch electrodes 10 (such as Figure 3 and Figure 4 When the three first touch electrodes 101 adjacent to the first touch electrode 101A and located in the first area AA1 and the one second touch electrode 102 adjacent to the first touch electrode 101A and located in the second area AA2 are short-circuited, the first detection circuit 20 is electrically connected to the first touch electrode column 101L in the first area AA1, the second detection circuit 30 is electrically connected to the second touch electrode column 102L in the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L in the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L in the second area AA2 ( Figure 4 The first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode 101A, and the first detection circuit 20 simultaneously provides a first short-circuit detection signal to at least other first touch electrodes 101 (such as Figure 3 and Figure 4 The first touch electrode 101B, the first touch electrode 101C, and the first touch electrode 101D are schematically shown to provide a second short-circuit detection signal. Optionally, the first short-circuit detection signal may be an alternating current voltage signal AC, and the second short-circuit detection signal may be a direct current voltage signal DC, so that the first touch electrode 101A and the other plurality of first touch electrodes 101 adjacent to it are controlled to be short-circuited. Figure 3 and Figure 4It is shown that the signal type on the first touch electrode 101A in the first area AA1 is different from the signal type on the first touch electrode 101B, the first touch electrode 101C, and the first touch electrode 101D. If the first touch electrode 101A is short-circuited with any one of the first touch electrode 101B, the first touch electrode 101C, and the first touch electrode 101D, the first short-circuit detection signal (AC voltage signal) of the first touch electrode 101A will be pulled down by the second short-circuit detection signal (DC voltage signal), and the amount of the detection data signal fed back to the detection chip (such as a driving chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the first touch electrode 101A in the first area AA1 is short-circuited with the first touch electrode 101B, the first touch electrode 101C, and the first touch electrode 101D. In addition, in this embodiment, when detecting the first touch electrode 101A (a first touch electrode 101 adjacent to the second area AA2), the fourth detection circuit 50 detects a plurality of second touch electrodes 102 (such as Figure 3 and Figure 4 The second touch electrode 102E shown in the figure provides a second short-circuit detection signal (which can also be a DC voltage signal DC), that is, the signal type on the first touch electrode 101A in the first area AA1 is different from the signal type on the second touch electrode 102 such as the second touch electrode 102E in the adjacent second area AA2. If the first touch electrode 101A and the second touch electrode 102E are short-circuited, the first short-circuit detection signal (AC) of the first touch electrode 101A will be pulled down by the second short-circuit detection signal (DC voltage signal DC), and the amount of the detection data signal fed back to the detection chip (such as a driving chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the first touch electrode 101A in the first area AA1 is short-circuited with the second touch electrode 102E in the second area AA2, that is, effective detection of the touch electrode 10 at the boundary between the first area AA1 and the second area AA2 can be achieved, thereby improving the detection accuracy and thus facilitating improving the output yield of the product.

[0062] This embodiment is not only applicable to a large-size touch display panel 000, while ensuring the touch accuracy of the large-size panel, but also can increase the number of signal transmission channels by designing the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 electrically connected to the touch electrode 10 as a mux circuit structure, thereby reducing the power consumption of the panel. In addition, when the touch electrode 10 at the boundary between the first area AA1 and the second area AA2 in the display area AA is detected by the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 in this embodiment, the first detection circuit 20 is turned on, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned on, so that the first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode 101A, the first detection circuit 20 provides a second short-circuit detection signal to at least the other multiple first touch electrodes 101 adjacent to the first touch electrode 101A in the first area AA1, and the fourth detection circuit 50 provides a second short-circuit detection signal to the multiple second touch electrodes 102 adjacent to the first touch electrode 101A in the second area AA2, thereby achieving effective detection of the touch electrode 10 at the boundary between the first area AA1 and the second area AA2, which is beneficial to improving the detection accuracy and ensuring the product yield.

[0063] It can be understood that the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 in this embodiment can be a mux circuit structure with substantially the same structure. Figure 1 and Figure 2 The VTCOM circuit architecture is different. The third detection circuit 40 and the fourth detection circuit 50 can provide a second short-circuit detection signal (such as a DC voltage signal) to the touch electrode 10 electrically connected thereto when turned on, which is beneficial to ensure the detection effect at the boundary between the first area AA1 and the second area AA2.

[0064] It should be noted that, in this embodiment Figure 3 and Figure 4 The structure that the touch display panel 000 may include is only illustrated by way of example. In specific implementation, the structure of the touch display panel 000 includes but is not limited to this, and may also include other structures that can realize touch and display functions. This embodiment will not be described in detail here, and specific reference may be made to the structure of the touch display panel in the relevant technology for understanding.

[0065] Optional, such as Figure 5 As shown, Figure 5 yes Figure 3Another partial enlarged structural diagram of the middle part area, in the touch display panel 000 provided in this embodiment, when detecting whether the first touch electrodes 101 at other positions in the first area AA1 (which can be understood as other first touch electrodes 101 not adjacent to the second area AA2) are short-circuited, such as Figure 3 and Figure 5 When the first touch electrode 1010 shown in FIG. 1 is short-circuited, the first detection circuit 20 may be turned on, the second detection circuit 30 may be turned off, the third detection circuit 40 may be turned off, and the fourth detection circuit 50 may be turned off ( Figure 5 The cross in the figure indicates that the electrical connection path is closed and not conductive), the first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode 1010, and the first detection circuit 20 provides a second short-circuit detection signal to other multiple first touch electrodes 101 adjacent to the first touch electrode 1010 in the first area AA1, so as to detect the first touch electrode 101 at a position in the first area AA1 that is not adjacent to the second area AA2. Since the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned off at this time, it is beneficial to reduce the power consumption of the panel.

[0066] In some optional embodiments, please refer to Figure 3 and Figure 6 , Figure 6 yes Figure 3 Another partial enlarged structural diagram of the middle area, in the touch display panel 000 provided in this embodiment, the plurality of second touch electrodes 102 in the second area AA2 includes at least one second touch electrode A adjacent to the first area AA1, namely, the second touch electrode 102A;

[0067] When detecting the second touch electrode 102A (a second touch electrode 102 adjacent to the first area AA1 ), the first detection circuit 20 is turned off, the second detection circuit 30 is turned on, the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off.

[0068] This embodiment explains that the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 are arranged so that when detecting the second touch electrode 102A (a second touch electrode 102 adjacent to the first area AA1), the first detection circuit 20 is turned off, the second detection circuit 30 is turned on, the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off, that is, the second touch electrode 102A and other touch electrodes 10 (such as Figure 3 and Figure 6When the three second touch electrodes 102 adjacent to the second touch electrode 102A and located in the second area AA2 and the one first touch electrode 101 adjacent to the second touch electrode 102A and located in the first area AA1 are short-circuited, the first detection circuit 20 is electrically connected to the first touch electrode column 101L in the first area AA1, the second detection circuit 30 is electrically connected to the second touch electrode column 102L in the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L in the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L in the second area AA2. Figure 6 The second detection circuit 30 provides a first short-circuit detection signal to the second touch electrode 102A, and the second detection circuit 30 simultaneously provides a first short-circuit detection signal to at least other second touch electrodes 102 (such as Figure 3 and Figure 6 The second touch electrode 102B, the second touch electrode 102C, and the second touch electrode 102D) shown in the figure provide a second short-circuit detection signal. Optionally, the first short-circuit detection signal may be an alternating voltage signal AC, and the second short-circuit detection signal may be a direct voltage signal DC, so that the second touch electrode 102A and the other plurality of second touch electrodes 102 adjacent to it are Figure 3 and Figure 6 It is shown that the signal type on the second touch electrode 102A in the second area AA2 is different from the signal type on the second touch electrode 102B, the second touch electrode 102C, and the second touch electrode 102D. If the second touch electrode 102A is short-circuited with any one of the second touch electrode 102B, the second touch electrode 102C, and the second touch electrode 102D, the first short-circuit detection signal (AC voltage signal) of the second touch electrode 102A will be pulled down by the second short-circuit detection signal (DC voltage signal), and the amount of the detection data signal fed back to the detection chip (such as a driving chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the second touch electrode 102A in the second area AA2 is short-circuited with the second touch electrode 102B, the second touch electrode 102C, and the second touch electrode 102D. In addition, in this embodiment, when detecting the second touch electrode 102A (a second touch electrode 102 adjacent to the first area AA1), the third detection circuit 40 detects a plurality of first touch electrodes 101 adjacent to the second touch electrode 102A in the first area AA1 (such as Figure 3 and Figure 6The first touch electrode 101E shown in the figure provides a second short-circuit detection signal (which can also be a DC voltage signal DC), that is, the signal type on the second touch electrode 102A in the second area AA2 is different from the signal type on the first touch electrode 101 such as the first touch electrode 101E in the adjacent first area AA1. If the second touch electrode 102A is short-circuited with the first touch electrode 101E, the first short-circuit detection signal (AC voltage signal AC) of the second touch electrode 102A will be pulled down by the second short-circuit detection signal (DC voltage signal DC), and the amount of detection data signal fed back to the detection chip (such as a driving chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the second touch electrode 102A in the second area AA2 is short-circuited with the first touch electrode 101E in the first area AA1, that is, effective detection of the touch electrode 10 at the boundary between the first area AA1 and the second area AA2 can be achieved, thereby improving the detection accuracy and thus facilitating improving the output yield of the product. This embodiment is not only applicable to a large-sized touch display panel 000, and ensures the touch accuracy of the large-sized panel, but also can increase the number of signal transmission channels by designing the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 electrically connected to the touch electrode 10 to be a mux circuit structure, so as to realize the shunt transmission of the touch signal, and further reduce the power consumption of the panel. In addition, when the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 are used to detect the second touch electrode 102 at the boundary position between the first area AA1 and the second area AA2 in the second area AA2, the embodiment realizes effective detection of the touch electrode 10 at the boundary position between the first area AA1 and the second area AA2, which is conducive to improving the detection accuracy and ensuring the product yield.

[0069] Optional, such as Figure 7 As shown, Figure 7 yes Figure 3 Another partial enlarged structural diagram of the middle part area, in the touch display panel 000 provided in this embodiment, when detecting whether the second touch electrodes 102 at other positions in the second area AA2 (which can be understood as other second touch electrodes 102 not adjacent to the first area AA1) are short-circuited, such as Figure 3 and Figure 7 When the second touch electrode 1020 shown in FIG. 1 performs short circuit detection, the first detection circuit 20 can be turned off, the second detection circuit 30 can be turned on, the third detection circuit 40 can be turned off, and the fourth detection circuit 50 can be turned off ( Figure 7The cross in the figure indicates that the electrical connection path is closed and not conductive), the second detection circuit 30 provides a first short-circuit detection signal to the second touch electrode 1020, and the second detection circuit 30 provides a second short-circuit detection signal to other multiple second touch electrodes 102 adjacent to the second touch electrode 1020 in the second area AA2, so as to detect the second touch electrode 102 at a position in the second area AA2 that is not adjacent to the first area AA1. Since the first detection circuit 20 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned off at this time, it is beneficial to reduce the power consumption of the panel.

[0070] In some optional embodiments, please refer to Figure 8 , Fig. 9 and Fig.10 , Figure 8 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Fig. 9 yes Figure 8 A schematic diagram of a local enlarged structure of the middle part of the area, Fig.10 yes Fig. 9 Schematic diagram of the local connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column, in the touch display panel 000 provided in this embodiment, the first detection circuit 20 includes m first detection modules 200, and one first detection module 200 corresponds to one first touch electrode column 101L; the first detection module 200 includes n1 first detection units 201, and in the same first detection module 200, one first detection unit 201 is electrically connected to a first touch electrode 101 of the same first touch electrode column 101L through a first touch signal line 601;

[0071] The second detection circuit 30 includes m second detection modules 300, one second detection module 300 corresponds to one second touch electrode column 102L; the second detection module 300 includes n2 second detection units 301, and in the same second detection module 300, one second detection unit 301 is electrically connected to one second touch electrode 102 of the same second touch electrode column 102L through the second touch signal line 602;

[0072] The third detection circuit 40 includes m third detection modules 400, one third detection module 400 corresponds to one first touch electrode column 101L; the third detection module 400 includes n1 third detection units 401, and in the same third detection module 400, one third detection unit 401 is electrically connected to one first touch electrode 101 of the same first touch electrode column 101L through the first touch signal line 601;

[0073] The fourth detection circuit 50 includes m fourth detection modules 500, one fourth detection module 500 corresponds to one second touch electrode column 102L; the fourth detection module 500 includes n2 fourth detection units 501, and in the same fourth detection module 500, one fourth detection unit 501 is electrically connected to a second touch electrode 102 of the same second touch electrode column 102L through a second touch signal line 602.

[0074] Optionally, the first detection circuit 20 includes a first control terminal TPMUX1, multiple first input terminals 20in and multiple first output terminals 20out, the first detection circuit 20 includes multiple first transistors T1, the first detection module 200 includes n1 first transistors T1, and one first detection unit 201 corresponds to one first transistor T1; the gates of the first transistors T1 are connected to the first control terminal TPMUX1, the first electrodes of the first transistors T1 are respectively connected to the first input terminals 20in in a one-to-one correspondence, and the second electrodes of the first transistors T1 are respectively connected to the first output terminals 20out in a one-to-one correspondence;

[0075] The second detection circuit 30 includes a second control terminal TPMUX2, a plurality of second input terminals 30in and a plurality of second output terminals 30out. The second detection circuit 30 includes a plurality of second transistors T2. The second detection module 300 includes n2 second transistors T2. One second detection unit 301 corresponds to one second transistor T2. The gates of the second transistors T2 are connected to the second control terminal TPMUX2. The first electrodes of the second transistors T2 are connected to the second input terminals 30in in a one-to-one correspondence. The second electrodes of the second transistors T2 are connected to the second output terminals 30out in a one-to-one correspondence.

[0076] The third detection circuit 40 includes a third control terminal RXSW1, a plurality of third input terminals 40in and a plurality of third output terminals 40out. The third detection circuit 40 includes a plurality of third transistors T3. The third detection module 400 includes n1 third transistors T3. One third detection unit 401 corresponds to one third transistor T3. The gates of the third transistors T3 are all connected to the third control terminal RXSW1. The first electrodes of the third transistors T3 are respectively connected to the third input terminals 40in in a one-to-one correspondence. The second electrodes of the third transistors T3 are respectively connected to the third output terminals 40out in a one-to-one correspondence.

[0077] The fourth detection circuit 50 includes a fourth control terminal RXSW2, a plurality of fourth input terminals 50in and a plurality of fourth output terminals 50out. The fourth detection circuit 50 includes a plurality of fourth transistors T4. The fourth detection module 500 includes n2 fourth transistors T4. One fourth detection unit 501 corresponds to one fourth transistor T4. The gates of the fourth transistors T4 are all connected to the fourth control terminal RXSW2. The first electrodes of the fourth transistors T4 are respectively connected to the fourth input terminals 50in in a one-to-one correspondence. The second electrodes of the fourth transistors T4 are respectively connected to the fourth output terminals 50out in a one-to-one correspondence.

[0078] like Fig.10 As shown, the first output terminal 20out and the third output terminal 40out corresponding to the same first touch electrode 101 are connected to the same first touch signal line 601;

[0079] The second output terminal 30 out and the fourth output terminal 50 out corresponding to the same second touch electrode 102 are connected to the same second touch signal line 602 .

[0080] This embodiment explains that in the non-display area NA of the touch display panel 000, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 are all mux circuit structures, and an electrical connection with the touch electrodes 10 in different areas of the touch display panel 000 is achieved through a multi-way selection circuit structure in which one input end of the mux circuit structure corresponds to at least one output end, so as to provide a touch or display signal to the touch electrode 10 to ensure that the area of ​​the touch electrode 10 can be small enough to meet the touch accuracy requirements. At the same time, the number of signal transmission channels can be increased by designing the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 to be mux circuit structures, thereby reducing the power consumption of the panel.

[0081] The specific circuit structure of the first detection circuit 20 in this embodiment is: the first detection circuit 20 includes m first detection modules 200, that is, along the second direction X, the touch display panel 000 includes m first touch electrode columns 101L, and the first detection circuit 20 includes m first detection modules 200, and the number of the first detection modules 200 is the same as the number of the first touch electrode columns 101L, so that one first detection module 200 corresponds to one first touch electrode column 101L. The first detection module 200 includes n1 first detection units 201, that is, along the first direction Y, in the first area AA1 of the touch display panel 000, a first touch electrode column 101L includes n1 first touch electrodes 101, then the first detection module 200 includes n1 first detection units 201, the number of first touch electrodes 101 included in a first touch electrode column 101L is the same as the number of first detection units 201 included in a first detection module 200, so that in the same first detection module 200, a first detection unit 201 is electrically connected to a first touch electrode 101 of the same first touch electrode column 101L through a first touch signal line 601 extending along the same direction, and optionally a first detection unit 201 is electrically connected to n1 first touch electrodes 101 of the same first touch electrode column 101L through n1 first touch signal lines 601 extending along the same direction. The first detection circuit 20 of the multi-way selection circuit structure may include a first control terminal TPMUX1, a plurality of first input terminals 20in and a plurality of first output terminals 20out. The first detection circuit 20 includes a plurality of first transistors T1. The number of first transistors T1 included in a first detection module 200 is the same as the number of first touch electrodes 101 included in a first touch electrode column 101L, so that a first detection unit 201 corresponds to a first transistor T1. The gates of the first transistors T1 are all connected to the first control terminal TPMUX1, wherein the first control terminal TPMUX1 may be connected to a first clock control signal. The first clock control signal connected to the terminal TPMUX1 is used to control the first transistor T1 to be turned on or off, thereby realizing the conduction or not between the first input terminal 20in connected to the first electrode of the first transistor T1 and the first output terminal 20out connected to the second electrode of the first transistor T1, and then making the first detection circuit 20 in a conducting state when the first transistor T1 is turned on, and making the first detection circuit 20 in a closed state when the first transistor T1 is cut off, realizing signal transmission between the first detection circuit 20 and the first touch electrode 101 when the first detection circuit 20 is turned on, and not causing signal transmission between the first detection circuit 20 and the first touch electrode 101 when the first detection circuit 20 is turned off.

[0082] It can be understood that, in the present embodiment, the first transistor T1 is illustrated by taking an N-type transistor as an example, and when the first clock control signal connected to the first control terminal TPMUX1 is a high-level signal, the first transistor T1 is controlled to be in a conducting state, and when the first clock control signal connected to the first control terminal TPMUX1 is a low-level signal, the first transistor T1 is controlled to be in a cut-off state. In specific implementation, the first transistor T1 can also be a P-type transistor. When the first transistor T1 is a P-type transistor, when the first clock control signal connected to the first control terminal TPMUX1 is a low-level signal, the first transistor T1 is controlled to be in a conducting state, and when the first clock control signal connected to the first control terminal TPMUX1 is a high-level signal, the first transistor T1 is controlled to be in a cut-off state. In specific implementation, the first clock control signal connected to the first control terminal TPMUX1 can be controlled according to different types of the first transistor T1 to realize the conducting and cut-off states of the first transistor T1, and this embodiment is not limited here.

[0083] The specific circuit structure of the second detection circuit 30 in this embodiment is: the second detection circuit 30 includes m second detection modules 300, that is, along the second direction X, the touch display panel 000 includes m second touch electrode columns 102L, and the second detection circuit 30 includes m second detection modules 300, and the number of the second detection modules 300 is the same as the number of the second touch electrode columns 102L, so that one second detection module 300 corresponds to one second touch electrode column 102L. The second detection module 300 includes n2 second detection units 301, that is, along the first direction Y, in the second area AA2 of the touch display panel 000, a second touch electrode column 102L includes n2 second touch electrodes 102, then the second detection module 300 includes n2 second detection units 301, the number of second touch electrodes 102 included in a second touch electrode column 102L is the same as the number of second detection units 301 included in a second detection module 300, so that in the same second detection module 300, a second detection unit 301 is electrically connected to a second touch electrode 102 of the same second touch electrode column 102L through a second touch signal line 602 extending along the same direction, and optionally a second detection unit 301 is electrically connected to n2 second touch electrodes 102 of the same second touch electrode column 102L through n2 second touch signal lines 602 extending along the same direction. The second detection circuit 30 of the multi-way selection circuit structure may include a second control terminal TPMUX2, a plurality of second input terminals 30in and a plurality of second output terminals 30out. The second detection circuit 30 includes a plurality of second transistors T2. The number of second transistors T2 included in a second detection module 300 is the same as the number of second touch electrodes 102 included in a second touch electrode column 102L, so that a second detection unit 301 corresponds to a second transistor T2. The gates of the second transistors T2 are all connected to the second control terminal TPMUX2. The second control terminal TPMUX2 may be connected to a second clock control signal. The second clock control signal connected to the terminal TPMUX2 is used to control the second transistor T2 to be turned on or off, thereby realizing the conduction between the second input terminal 30in connected to the first electrode of the second transistor T2 and the second output terminal 30out connected to the second electrode of the second transistor T2, and then the second detection circuit 30 is in the on state when the second transistor T2 is turned on, and the second detection circuit 30 is in the off state when the second transistor T2 is turned off. When the second detection circuit 30 is turned on, signal transmission with the second touch electrode 102 is realized, and when the second detection circuit 30 is turned off, no signal transmission occurs between the second touch electrode 102.

[0084] It can be understood that, in this embodiment, the second transistor T2 is illustrated by taking an N-type transistor as an example, and when the second clock control signal connected to the second control terminal TPMUX2 is a high-level signal, the second transistor T2 is controlled to be in a conducting state, and when the second clock control signal connected to the second control terminal TPMUX2 is a low-level signal, the second transistor T2 is controlled to be in a cut-off state. In specific implementation, the second transistor T2 can also be a P-type transistor. When the second transistor T2 is a P-type transistor, when the second clock control signal connected to the second control terminal TPMUX2 is a low-level signal, the second transistor T2 is controlled to be in a conducting state, and when the second clock control signal connected to the second control terminal TPMUX2 is a high-level signal, the second transistor T2 is controlled to be in a cut-off state. In specific implementation, the second clock control signal connected to the second control terminal TPMUX2 can be controlled according to different types of the second transistor T2 to achieve the conducting and cut-off states of the second transistor T2, and this embodiment is not limited here.

[0085] The specific circuit structure of the third detection circuit 40 in this embodiment is: the third detection circuit 40 includes m third detection modules 400, that is, along the second direction X, the touch display panel 000 includes m first touch electrode columns 101L, and the third detection circuit 40 includes m third detection modules 400, and the number of the third detection modules 400 is the same as the number of the first touch electrode columns 101L, so that one third detection module 400 corresponds to one first touch electrode column 101L. The third detection module 400 includes n1 third detection units 401, that is, along the first direction Y, in the first area AA1 of the touch display panel 000, a first touch electrode column 101L includes n1 first touch electrodes 101, then the third detection module 400 includes n1 third detection units 401, the number of first touch electrodes 101 included in a first touch electrode column 101L is the same as the number of third detection units 401 included in a third detection module 400, so that in the same third detection module 400, a third detection unit 401 is electrically connected to a first touch electrode 101 of the same first touch electrode column 101L through a first touch signal line 601 extending along the same direction, and optionally a third detection unit 401 is electrically connected to n1 first touch electrodes 101 of the same first touch electrode column 101L through n1 first touch signal lines 601 extending along the same direction. The third detection circuit 40 of the multi-way selection circuit structure may include a third control terminal RXSW1, a plurality of third input terminals 40in and a plurality of third output terminals 40out. The third detection circuit 40 includes a plurality of third transistors T3. The number of third transistors T3 included in a third detection module 400 is the same as the number of first touch electrodes 101 included in a first touch electrode column 101L, so that a third detection unit 401 corresponds to a third transistor T3. The gates of the third transistors T3 are all connected to the third control terminal RXSW1. The third control terminal RXSW1 may be connected to a third clock control signal. The third clock control signal connected to RXSW1 is used to control the third transistor T3 to be turned on or off, thereby realizing the conduction or not between the third input terminal 40in connected to the first electrode of the third transistor T3 and the third output terminal 40out connected to the second electrode of the third transistor T3, and then making the third detection circuit 40 in the on state when the third transistor T3 is turned on, and making the third detection circuit 40 in the off state when the third transistor T3 is turned off, realizing signal transmission between the third detection circuit 40 and the first touch electrode 101 when the third detection circuit 40 is turned on, and not causing signal transmission between the third detection circuit 40 and the first touch electrode 101 when the third detection circuit 40 is turned off.

[0086] It can be understood that the third transistor T3 in this embodiment is illustrated by taking an N-type transistor as an example, and when the third clock control signal connected to the third control terminal RXSW1 is a high-level signal, the third transistor T3 is controlled to be in a conducting state, and when the third clock control signal connected to the third control terminal RXSW1 is a low-level signal, the third transistor T3 is controlled to be in a cut-off state. In specific implementation, the third transistor T3 can also be a P-type transistor. When the third transistor T3 is a P-type transistor, when the third clock control signal connected to the third control terminal RXSW1 is a low-level signal, the third transistor T3 is controlled to be in a conducting state, and when the third clock control signal connected to the third control terminal RXSW1 is a high-level signal, the third transistor T3 is controlled to be in a cut-off state. In specific implementation, the third clock control signal connected to the third control terminal RXSW1 can be controlled according to different types of the third transistor T3 to achieve the conducting and cut-off states of the third transistor T3, and this embodiment is not limited here.

[0087] The specific circuit structure of the fourth detection circuit 50 in this embodiment is: the fourth detection circuit 50 includes m fourth detection modules 500, that is, along the second direction X, the touch display panel 000 includes m second touch electrode columns 102L, and the fourth detection circuit 50 includes m fourth detection modules 500, and the number of the fourth detection modules 500 is the same as the number of the second touch electrode columns 102L, so that one fourth detection module 500 corresponds to one second touch electrode column 102L. The fourth detection module 500 includes n2 fourth detection units 501, that is, along the first direction Y, in the second area AA2 of the touch display panel 000, a second touch electrode column 102L includes n2 second touch electrodes 102, then the fourth detection module 500 includes n2 fourth detection units 501, the number of second touch electrodes 102 included in a second touch electrode column 102L is the same as the number of fourth detection units 501 included in a fourth detection module 500, so that in the same fourth detection module 500, a fourth detection unit 501 is electrically connected to a second touch electrode 102 of the same second touch electrode column 102L through a second touch signal line 602 extending along the same direction, and optionally a fourth detection unit 501 is electrically connected to n2 second touch electrodes 102 of the same second touch electrode column 102L through n2 second touch signal lines 602 extending along the same direction. The fourth detection circuit 50 of the multi-way selection circuit structure may include a fourth control terminal RXSW2, a plurality of fourth input terminals 50in and a plurality of fourth output terminals 50out. The fourth detection circuit 50 includes a plurality of fourth transistors T4. The number of fourth transistors T4 included in a fourth detection module 500 is the same as the number of second touch electrodes 102 included in a second touch electrode column 102L, so that a fourth detection unit 501 corresponds to a fourth transistor T4. The gates of the fourth transistors T4 are all connected to the fourth control terminal RXSW2. The fourth control terminal RXSW2 may be connected to a fourth clock control signal. The fourth clock control signal connected to RXSW2 is used to control the fourth transistor T4 to be turned on or off, thereby realizing the conduction or not between the fourth input terminal 50in connected to the first electrode of the fourth transistor T4 and the fourth output terminal 50out connected to the second electrode of the fourth transistor T4, and then making the fourth detection circuit 50 in the on state when the fourth transistor T4 is turned on, and making the fourth detection circuit 50 in the off state when the fourth transistor T4 is turned off, realizing signal transmission between the fourth detection circuit 50 and the second touch electrode 102 when the fourth detection circuit 50 is turned on, and no signal transmission occurs between the fourth detection circuit 50 and the second touch electrode 102 when the fourth detection circuit 50 is turned off.

[0088] It can be understood that the fourth transistor T4 in this embodiment is illustrated by taking an N-type transistor as an example, and when the fourth clock control signal connected to the fourth control terminal RXSW2 is a high-level signal, the fourth transistor T4 is controlled to be in a conducting state, and when the fourth clock control signal connected to the fourth control terminal RXSW2 is a low-level signal, the fourth transistor T4 is controlled to be in a cut-off state. In specific implementation, the fourth transistor T4 can also be a P-type transistor. When the fourth transistor T4 is a P-type transistor, when the fourth clock control signal connected to the fourth control terminal RXSW2 is a low-level signal, the fourth transistor T4 is controlled to be in a conducting state, and when the fourth clock control signal connected to the fourth control terminal RXSW2 is a high-level signal, the fourth transistor T4 is controlled to be in a cut-off state. In specific implementation, the fourth clock control signal connected to the fourth control terminal RXSW2 can be controlled according to different types of the fourth transistor T4 to achieve the on and off states of the fourth transistor T4, which is not limited in this embodiment.

[0089] In this embodiment, the first detection circuit 20 can independently control whether the first detection circuit 20 and the first touch electrode 101 are connected or not through the first clock signal connected to the first control terminal TPMUX1, the second detection circuit 30 can independently control whether the second detection circuit 30 and the second touch electrode 102 are connected or not through the second clock signal connected to the second control terminal TPMUX2, the third detection circuit 40 can independently control whether the third detection circuit 20 and the first touch electrode 101 are connected or not through the third clock signal connected to the third control terminal RXSW1, and the fourth detection circuit 50 can independently control whether the fourth detection circuit 50 and the second touch electrode 102 are connected or not through the fourth clock signal connected to the fourth control terminal RXSW2, thereby realizing independent control between each detection circuit and the touch electrodes 10 in different areas, and flexibly providing different touch electrodes 10 in different areas with the required type of signal, so as to better improve the accuracy of detecting whether there is a short circuit between the touch electrodes 10 and improve the product yield.

[0090] like Fig.10As shown, in this embodiment, the first output terminal 20out and the third output terminal 40out corresponding to the same first touch electrode 101 are connected to the same first touch signal line 601; the second output terminal 30out and the fourth output terminal 50out corresponding to the same second touch electrode 102 are connected to the same second touch signal line 602. Since the first detection circuit 20 and the second detection circuit 30 are turned on in time division, the third detection circuit 40 and the fourth detection circuit 50 are turned on in time division, and the first detection circuit 20 and the third detection circuit 40 control the first transistor T1 and the third transistor T2 through different control terminals (the first control terminal TPMUX1 and the third control terminal RXSW1). The third transistor T3 is turned on or off, so the first output terminal 20out and the third output terminal 40out corresponding to the same first touch electrode 101 are connected to the same first touch signal line 601. Similarly, the second output terminal 30out and the fourth output terminal 50out corresponding to the same second touch electrode 102 can be set to be connected to the same second touch signal line 602, which is beneficial to reduce the number of touch signal lines in the touch display panel 000, and then reduce the panel space occupied by the touch signal lines, which is beneficial to improve the display effect and touch effect, and avoid the problem of too small spacing between signal lines due to too many touch signal lines, which easily leads to a reduction in product yield.

[0091] It can be understood that some or all of the multiple first transistors T1, multiple second transistors T2, multiple third transistors T3, and multiple fourth transistors T4 in this embodiment can be arranged side by side, that is, under the condition that space in the second direction X allows, some or all of the transistors in the detection circuit can be arranged in sequence along the second direction X (not shown in the figure), which is beneficial to reducing the width occupied by the transistors in the first direction Y, and is beneficial to reducing the border of the touch display panel 000 to achieve a narrow border.

[0092] In some optional embodiments, please refer to Fig.11 and Fig.12 , Fig.11 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Fig.12 yes Fig.11 A partial enlarged structural diagram of a part of the middle area, in this embodiment, the non-display area NA of the touch display panel 000 includes a binding area BA, and the binding area BA includes a plurality of conductive pads 70;

[0093] The first input terminal 20in and the third input terminal 40in corresponding to the same first touch electrode 101 are connected to the same conductive pad 70;

[0094] The second input terminal 30 in and the fourth input terminal 50 in corresponding to the same second touch electrode 102 are connected to the same conductive pad 70 .

[0095] This embodiment explains that since the first detection circuit 20 and the second detection circuit 30 are turned on in a time-sharing manner, the third detection circuit 40 and the fourth detection circuit 50 are turned on in a time-sharing manner, and the first detection circuit 20 and the third detection circuit 40 control the conduction of the first transistor T1 and the third transistor T3 through different control terminals (the first control terminal TPMUX1 and the third control terminal RXSW1), and the second detection circuit 30 and the fourth detection circuit 50 control the conduction of the second transistor T2 and the fourth transistor T4 through different control terminals (the second control terminal TPMUX2 and the fourth control terminal RXSW2), the first input terminal 20in and the third input terminal 40in corresponding to the same first touch electrode 101 can be set to be connected to the same conductive pad 70, and the second input terminal 30in and the fourth input terminal 50in corresponding to the same second touch electrode 102 can be connected to the same conductive pad 70, which is beneficial to reduce the number of conductive pads 70 within the binding area BA, which is beneficial to better achieve a narrow frame and reduce the driving power consumption of the panel.

[0096] Optional, such as Fig.11 and Fig.12 As shown, since the number of first touch electrode columns 101L is the same as the number of second touch electrode columns 102L, that is, a first touch electrode column 101L and a second touch electrode column 102L belong to the same touch electrode column, the first input terminal 20in corresponding to the first touch electrode 101 and the second input terminal 30in corresponding to the second touch electrode 102 in the same touch electrode column can also be set to be connected to the same conductive pad 70, which is beneficial to further reduce the number of conductive pads 70 in the binding area BA, thereby helping to reduce the driving power consumption of the driving chip or flexible circuit board bound to the binding area BA, and also helping to reduce the space required for the binding area BA, thereby better realizing a narrow frame.

[0097] In some optional embodiments, please refer to Figure 11-Figure 12 and Fig.13 , Fig.13 yes Fig.12 Schematic diagram of the local connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column, in this embodiment, n1=n2; along the direction from the first area AA1 to the second area AA2, the first touch signal line 601 connected to the a-th first touch electrode 101 and the second touch signal line 602 connected to the a-th second touch electrode 102 are electrically connected to the same conductive pad 70 respectively; wherein a is a positive integer less than or equal to n1.

[0098] This embodiment explains that in the touch display panel 000, the number n1 of the first touch electrodes 101 included in each first touch electrode column 101L in the first area AA1 can be the same as the number n2 of the second touch electrodes 102 included in each second touch electrode column 102L in the second area AA2, that is, the display area AA is evenly divided into two areas. At this time, along the direction from the first area AA1 to the second area AA2, the first touch signal line 601 connected to the a-th first touch electrode 101 corresponds to the second touch signal line 602 connected to the a-th second touch electrode 102, and both can be electrically connected to the same conductive pad 70, such as Fig.13 Schematically, along the direction Y1 pointing from the first area AA1 to the second area AA2, the first touch signal line 601 connected to the first first touch electrode 101 corresponds to the second touch signal line 602 connected to the first second touch electrode 102, and the two can be electrically connected to the same conductive pad 70, respectively. The first touch signal line 601 connected to the second first touch electrode 101 corresponds to the second touch signal line 602 connected to the second second touch electrode 102, and the two can be electrically connected to the same conductive pad 70, respectively, which is beneficial to further reduce the number of conductive pads 70 in the binding area BA, and can further reduce the space of the non-display area NA to achieve a narrower frame.

[0099] In some optional embodiments, please refer to Figure 14-Figure 19 , Fig.14 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Fig.15 yes Fig.14 A schematic diagram of a local enlarged structure of the middle part of the area, Fig.16 yes Fig.14 Another schematic diagram of the local enlarged structure of the middle part area, Fig.17 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Fig.18 yes Fig.17 A schematic diagram of a local enlarged structure of the middle part of the area, Fig.19 yes Fig.18 A schematic diagram of a partial connection structure of some touch electrodes in a first touch electrode column and a second touch electrode column. In this embodiment, the non-display area NA of the touch display panel 000 further includes a first switch circuit 80 and a second switch circuit 90;

[0100] The first switch circuit 80 includes m first switch modules 800, one first switch module 800 corresponds to one first touch electrode column 101L; the first switch module 800 includes n1 first switch units 801, and in the same first switch module 800, one first switch unit 801 is electrically connected to one first touch electrode 101 of the same first touch electrode column 101L through the first touch signal line 601;

[0101] The second switch circuit 90 includes m second switch modules 900, and one second switch module 900 corresponds to one second touch electrode column 102L; the second switch module 900 includes n2 second switch units 901, and in the same second switch module 900, one second switch unit 901 is electrically connected to a second touch electrode 102 in the same second touch electrode column 102L through a second touch signal line 602.

[0102] Optionally, the first switch circuit 80 includes a fifth control terminal VTCOMSW1, a plurality of fifth input terminals 80in and a plurality of fifth output terminals 80out, the first switch circuit 80 includes a plurality of fifth transistors T5, the first switch module 800 includes n1 fifth transistors T5, and one first switch unit 801 corresponds to one fifth transistor T5; the gates of the fifth transistors T5 are all connected to the fifth control terminal VTCOMSW1, the first electrodes of the fifth transistors T5 are respectively connected to the fifth input terminals 80in in a one-to-one correspondence, and the second electrodes of the fifth transistors T5 are respectively connected to the fifth output terminals 80out in a one-to-one correspondence;

[0103] The second switch circuit 90 includes a sixth control terminal VTCOMSW2, a plurality of sixth input terminals 90in and a plurality of sixth output terminals 90out. The second switch circuit 90 includes a plurality of sixth transistors T6. The second switch module 900 includes n2 sixth transistors T6. One second switch unit 901 corresponds to one sixth transistor T6. The gates of the sixth transistors T6 are all connected to the sixth control terminal VTCOMSW2. The first electrodes of the sixth transistors T6 are respectively connected to the sixth input terminals 90in in a one-to-one correspondence. The second electrodes of the sixth transistors T6 are respectively connected to the sixth output terminals 90out in a one-to-one correspondence.

[0104] The plurality of sixth input terminals 90in are all connected to the first common voltage signal VTCOMB;

[0105] The plurality of fifth input terminals 80in are all connected to the second common voltage signal VTCOMA.

[0106] This embodiment explains that the touch display panel 000 also includes a first switch circuit 80 and a second switch circuit 90 for providing a common voltage signal to the panel. Optionally, the first switch circuit 80 and the second switch circuit 90 may also be a mux circuit structure, and the control signals provided by the fifth control terminal VTCOMSW1 and the sixth control terminal VTCOMSW2 are used to realize time-sharing scanning drive in the first area AA1 and the second area AA2, that is, to provide a common voltage signal in a time-sharing manner.

[0107] like Fig.14 and Fig.15 , Figure 17-Figure 19 As shown, when the touch display panel 000 of the present embodiment is performing display work, the first detection circuit 20 can be turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned on, the fourth detection circuit 50 is turned off, the first switch circuit 80 is turned off, and the second switch circuit 90 is turned on, so that the first detection circuit 20 is disconnected from the first touch electrode column 101L in the first area AA1, the second detection circuit 30 is disconnected from the second touch electrode column 102L in the second area AA2, the third detection circuit 40 is connected to the first touch electrode column 101L in the first area AA1, the fourth detection circuit 50 is disconnected from the second touch electrode column 102L in the second area AA2, the first switch circuit 80 is disconnected from the first touch electrode column 101L in the first area AA1, and the second switch circuit 90 is connected to the second touch electrode column 102L in the second area AA2 ( Fig.15 The cross in the figure indicates that the electrical connection path is disconnected), the third detection circuit 40 provides the first common voltage signal VTCOMB to the multiple first touch electrodes 101 of the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to the multiple second touch electrodes 102 of the second area AA2, so that the touch electrodes 10 in the entire first area AA1 and the second area AA2 of the touch display panel 000 are used as common electrodes and receive the same first common voltage signal VTCOMB to achieve normal display of the touch display panel 000. It can be understood that the display principle of the touch display panel 000 is not described in detail in this embodiment. When it is implemented specifically, the touch display panel also includes other structures that can realize the display function, which can cooperate with the touch electrodes 10 multiplexed as common electrodes to make the touch display panel 000 emit light and display normally. For details, please refer to the display principle of the display panel in the relevant technology for understanding.

[0108] When the touch display panel 000 in the present embodiment is displaying, the third detection circuit 40 provides the first common voltage signal VTCOMB to the multiple first touch electrodes 101 in the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to the multiple second touch electrodes 102 in the second area AA2. That is, the second switch circuit 90 is additionally provided to cooperate with the third detection circuit 40, and the two together provide the first common voltage signal VTCOMB to the touch electrodes 10 in different areas within the display area AA. This can avoid the problem that when only the third detection circuit 40 and the fourth detection circuit 50 are used to provide the common voltage signal, the third detection circuit 40 and the fourth detection circuit 50 are connected to the same signal input terminal (the signal input terminal refers to the signal terminal on the driver chip or the flexible circuit board), resulting in one signal terminal needing to be electrically connected to two touch electrodes 10 in the first area AA1 and the second area AA2, that is, one signal terminal on the driver chip or the flexible circuit board needs to drive two touch electrodes 10, causing a drive overload that affects the display effect. In this embodiment, when displaying, only the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off and does not work. A second switch circuit 90 is added to cooperate with the third detection circuit 40. The third detection circuit 40 provides a first common voltage signal VTCOMB to multiple first touch electrodes 101 in the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to multiple second touch electrodes 102 in the second area AA2, which is beneficial to reduce the load of the subsequent driving chip or flexible circuit board bound to the touch display panel 000, and further helps to further reduce the panel power consumption.

[0109] Optional, such as Fig.14 and Fig.16 , Figure 17-Figure 19 As shown, when the touch display panel 000 of the present embodiment is performing display work, the first detection circuit 20 can be turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, the fourth detection circuit 50 is turned on, the first switch circuit 80 is turned on, and the second switch circuit 90 is turned off, so that the first detection circuit 20 is disconnected from the first touch electrode column 101L in the first area AA1, the second detection circuit 30 is disconnected from the second touch electrode column 102L in the second area AA2, the third detection circuit 40 is disconnected from the first touch electrode column 101L in the first area AA1, the fourth detection circuit 50 is connected to the second touch electrode column 102L in the second area AA2, the first switch circuit 80 is connected to the first touch electrode column 101L in the first area AA1, and the second switch circuit 90 is disconnected from the second touch electrode column 102L in the second area AA2 ( Fig.16The cross in the figure indicates that the electrical connection path is disconnected), the fourth detection circuit 50 provides the second common voltage signal VTCOMA to the multiple second touch electrodes 102 in the second area AA2, and the first switch circuit 80 also provides the second common voltage signal VTCOMA to the multiple first touch electrodes 101 in the first area AA1, so that the touch electrodes 10 in the entire first area AA1 and the second area AA2 of the touch display panel 000 are used as common electrodes and receive the same second common voltage signal VTCOMA to achieve normal display of the touch display panel 000. It can be understood that the display principle of the touch display panel 000 is not described in detail in this embodiment. When it is implemented specifically, the touch display panel also includes other structures that can realize the display function, which can cooperate with the touch electrodes 10 multiplexed as common electrodes to make the touch display panel 000 emit light and display normally. For details, please refer to the display principle of the display panel in the relevant technology for understanding.

[0110] When the touch display panel 000 in the present embodiment is displaying, the second common voltage signal VTCOMA is provided to the plurality of second touch electrodes 102 in the second area AA2 through the fourth detection circuit 50, and the first switch circuit 80 also provides the second common voltage signal VTCOMA to the plurality of first touch electrodes 101 in the first area AA1, that is, the first switch circuit 80 is additionally provided to cooperate with the fourth detection circuit 50, and the two together provide the second common voltage signal VTCOMA to the touch electrodes 10 in different areas within the display area AA, so that when only the third detection circuit 40 and the fourth detection circuit 50 are used to provide the common voltage signal, it can be avoided that when the third detection circuit 40 and the fourth detection circuit 50 are connected to the same signal input terminal (the signal input terminal refers to the signal terminal on the driving chip or the flexible printed circuit board), one signal terminal needs to be electrically connected to two touch electrodes 10 in the first area AA1 and the second area AA2, that is, one signal terminal on the driving chip or the flexible printed circuit board needs to drive two touch electrodes 10, causing a driving overload problem affecting the display effect. In this embodiment, when displaying, only the fourth detection circuit 50 is turned on, and the third detection circuit 40 is turned off and does not work. A first switch circuit 80 is added to cooperate with the fourth detection circuit 50. The fourth detection circuit 50 provides a second common voltage signal VTCOMA to the multiple second touch electrodes 102 in the second area AA2, and the first switch circuit 80 also provides a second common voltage signal VTCOMA to the multiple first touch electrodes 101 in the first area AA1, which is beneficial to reduce the load of the subsequent driving chip or flexible circuit board bound to the touch display panel 000, and further helps to further reduce the panel power consumption.

[0111] In some optional embodiments, please continue to refer to Figure 14-Figure 19In this embodiment, the first switch circuit 80 includes m first switch modules 800, that is, along the second direction X, the touch display panel 000 includes m first touch electrode columns 101L, and the first switch circuit 80 includes m first switch modules 800. The number of the first switch modules 800 is the same as the number of the first touch electrode columns 101L, so that one first switch module 800 corresponds to one first touch electrode column 101L. The first switch module 800 includes n1 first switch units 801, that is, along the first direction Y, in the first area AA1 of the touch display panel 000, a first touch electrode column 101L includes n1 first touch electrodes 101, then the first switch module 800 includes n1 first switch units 801, the number of first touch electrodes 101 included in a first touch electrode column 101L is the same as the number of first switch units 801 included in a first switch module 800, so that in the same first switch module 800, a first switch unit 801 is electrically connected to a first touch electrode 101 of the same first touch electrode column 101L through a first touch signal line 601 extending along the same direction, and optionally a first switch unit 801 is electrically connected to n1 first touch electrodes 101 of the same first touch electrode column 101L through n1 first touch signal lines 601 extending along the same direction. The first switch circuit 80 of the multi-way selection circuit structure may include a fifth control terminal VTCOMSW1, a plurality of fifth input terminals 80in and a plurality of fifth output terminals 80out. The first switch circuit 80 includes a plurality of fifth transistors T5. The number of fifth transistors T5 included in a first switch module 800 is the same as the number of first touch electrodes 101 included in a first touch electrode column 101L, so that a first switch unit 801 corresponds to a fifth transistor T5. The gates of the fifth transistors T5 are all connected to the fifth control terminal VTCOMSW1. The fifth control terminal VTCOMSW1 can be connected to the fifth clock control signal. The fifth clock control signal connected to the control terminal VTCOMSW1 is used to control the fifth transistor T5 to be turned on or off, thereby realizing the conduction or not between the fifth input terminal 80in connected to the first electrode of the fifth transistor T5 and the fifth output terminal 80out connected to the second electrode of the fifth transistor T5, and then making the first switch circuit 80 in the on state when the fifth transistor T5 is turned on, and making the first switch circuit 80 in the off state when the fifth transistor T5 is turned off, realizing signal transmission between the first switch circuit 80 and the first touch electrode 101 when the first switch circuit 80 is turned on, and no signal transmission occurs between the first touch electrode 101 when the first switch circuit 80 is turned off.

[0112] It can be understood that the fifth transistor T5 in this embodiment is illustrated by taking an N-type transistor as an example, and when the fifth clock control signal connected to the fifth control terminal VTCOMSW1 is a high-level signal, the fifth transistor T5 is controlled to be in a conducting state, and when the fifth clock control signal connected to the fifth control terminal VTCOMSW1 is a low-level signal, the fifth transistor T5 is controlled to be in a cut-off state. In specific implementation, the fifth transistor T5 can also be a P-type transistor. When the fifth transistor T5 is a P-type transistor, when the fifth clock control signal connected to the fifth control terminal VTCOMSW1 is a low-level signal, the fifth transistor T5 is controlled to be in a conducting state, and when the fifth clock control signal connected to the fifth control terminal VTCOMSW1 is a high-level signal, the fifth transistor T5 is controlled to be in a cut-off state. In specific implementation, the fifth clock control signal connected to the fifth control terminal VTCOMSW1 can be controlled according to different types of the fifth transistor T5 to achieve the conducting and cut-off states of the fifth transistor T5, and this embodiment is not limited here.

[0113] In this embodiment, the second switch circuit 90 includes m second switch modules 900, that is, along the second direction X, the touch display panel 000 includes m second touch electrode columns 102L, and the second switch circuit 90 includes m second switch modules 900. The number of second switch modules 900 is the same as the number of second touch electrode columns 102L, so that one second switch module 900 corresponds to one second touch electrode column 102L. The second switch module 900 includes n2 second switch units 901, that is, along the first direction Y, in the second area AA2 of the touch display panel 000, a second touch electrode column 102L includes n2 second touch electrodes 102, then the second switch module 900 includes n2 second switch units 901, the number of second touch electrodes 102 included in a second touch electrode column 102L is the same as the number of second switch units 901 included in a second switch module 900, so that in the same second switch module 900, a second switch unit 901 is electrically connected to a second touch electrode 102 of the same second touch electrode column 102L through a second touch signal line 602 extending along the same direction, and optionally a second switch unit 901 is electrically connected to n2 second touch electrodes 102 of the same second touch electrode column 102L through n2 second touch signal lines 602 extending along the same direction. The second switch circuit 90 of the multi-way selection circuit structure may include a sixth control terminal VTCOMSW2, a plurality of sixth input terminals 90in and a plurality of sixth output terminals 90out. The second switch circuit 90 includes a plurality of sixth transistors T6. The number of sixth transistors T6 included in a second switch module 900 is the same as the number of second touch electrodes 102 included in a second touch electrode column 102L, so that a second switch unit 901 corresponds to a sixth transistor T6. The gates of the sixth transistors T6 are all connected to the sixth control terminal VTCOMSW2. The sixth control terminal VTCOMSW2 can be connected to the sixth clock control signal. The sixth clock control signal connected to the control terminal VTCOMSW2 is used to control the sixth transistor T6 to be turned on or off, thereby realizing the conduction or not between the sixth input terminal 90in connected to the first electrode of the sixth transistor T6 and the sixth output terminal 90out connected to the second electrode of the sixth transistor T6, and then making the second switch circuit 90 in the on state when the sixth transistor T6 is turned on, and making the second switch circuit 90 in the off state when the sixth transistor T6 is turned off, realizing signal transmission between the second touch electrode 102 when the second switch circuit 90 is turned on, and no signal transmission occurs between the second touch electrode 102 when the second switch circuit 90 is turned off.

[0114] It can be understood that the sixth transistor T6 in this embodiment is illustrated by taking an N-type transistor as an example, and when the sixth clock control signal connected to the sixth control terminal VTCOMSW2 is a high-level signal, the sixth transistor T6 is controlled to be in a conducting state, and when the sixth clock control signal connected to the sixth control terminal VTCOMSW2 is a low-level signal, the sixth transistor T6 is controlled to be in a cut-off state. In specific implementation, the sixth transistor T6 can also be a P-type transistor. When the sixth transistor T6 is a P-type transistor, when the sixth clock control signal connected to the sixth control terminal VTCOMSW2 is a low-level signal, the sixth transistor T6 is controlled to be in a conducting state, and when the sixth clock control signal connected to the sixth control terminal VTCOMSW2 is a high-level signal, the sixth transistor T6 is controlled to be in a cut-off state. In specific implementation, the sixth clock control signal connected to the sixth control terminal VTCOMSW2 can be controlled according to different types of the sixth transistor T6 to achieve the conducting and cut-off states of the sixth transistor T6, and this embodiment is not limited here.

[0115] In some optional embodiments, please refer to Fig. 20 and Fig.21 , Fig. 20 is another schematic diagram of a planar structure of a touch display panel provided by an embodiment of the present invention, Fig.21 yes Fig. 20 A partial enlarged structural schematic diagram of the middle part area, in this embodiment, multiple fifth input terminals 80in are connected to each other, and multiple sixth input terminals 90in are connected to each other.

[0116] This embodiment explains that since the multiple fifth input terminals 80in of the first switch circuit 80 are all connected to the second common voltage signal VTCOMA, and the multiple sixth input terminals 90in of the second switch circuit 90 are all connected to the first common voltage signal VTCOMB, the multiple fifth input terminals 80in can be connected to each other, and the multiple sixth input terminals 90in can be connected to each other within the non-display area NA of the touch display panel 000. Optionally, the multiple fifth input terminals 80in can be commonly connected to a conductive pad in the binding area BA through a first common signal line, and the multiple sixth input terminals 90in can be commonly connected to a conductive pad in the binding area BA through a second common signal line (not shown in the figure), which is beneficial to reduce the number of common signal lines and the number of conductive pads within the non-display area NA, and is beneficial to further reduce the border of the touch display panel 000.

[0117] In some optional embodiments, please continue to refer to Fig.11 and Fig.12In this embodiment, in the first direction Y, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 are located in the non-display area NA on the same side of the display area AA.

[0118] This embodiment explains that the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 disposed within the non-display area NA can be located within the non-display area NA on the same side. Fig.11 As shown, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 can all be located within the non-display area NA including the binding area BA on the same side of the display area AA, so that the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 can be relatively close to the conductive pad 70 of the binding area BA, which is beneficial to reducing the winding distance of the connecting wires between each signal input terminal of the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 and the conductive pad 70, reducing the wiring difficulty in the non-display area NA, and avoiding short circuits caused by overly complicated winding.

[0119] In some optional embodiments, please continue to refer to Figure 3 and Figure 4 In this embodiment, the non-display area NA at least includes a first non-display area NA1 and a second non-display area NA2. In the first direction Y, the first non-display area NA1 and the second non-display area NA2 are respectively located at two opposite sides of the display area AA;

[0120] The first detection circuit 20 and the third detection circuit 40 are located in the first non-display area NA1;

[0121] The second detection circuit 30 and the fourth detection circuit 50 are located in the second non-display area NA2 .

[0122] This embodiment explains that the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 arranged in the non-display area NA can be respectively located in the non-display area NA on different sides of the display area AA. Optionally, the non-display area NA at least includes a first non-display area NA1 and a second non-display area NA2. In the first direction Y, the first non-display area NA1 and the second non-display area NA2 are respectively located on opposite sides of the display area AA. The first non-display area NA1 can be adjacent to the first area AA1 of the display area AA, and the second non-display area NA2 can be adjacent to the second area AA2 of the display area AA. In this embodiment, the first detection circuit 20 and the third detection circuit 40 are arranged in the first non-display area NA1, and the second detection circuit 30 and the fourth detection circuit 50 are arranged in the second non-display area NA2, which is beneficial for the first detection circuit 20 and the third detection circuit 40 to be electrically connected to the first touch electrode 101 in the first area AA1, and the second detection circuit 30 and the fourth detection circuit 50 to be electrically connected to the second touch electrode 102 in the second area AA2. Therefore, the first detection circuit 20 and the third detection circuit 40 are arranged in the first non-display area NA1 which is close to the first area AA1, and the second detection circuit 30 and the fourth detection circuit 50 are arranged in the second non-display area NA2 which is close to the second area AA2, which is beneficial for reducing the length of the touch signal line, thereby reducing the impedance during the transmission of the touch or detection signal, thereby facilitating the improvement of the detection and touch display effects, and can also reduce the wiring difficulty in the panel, and avoid short circuits caused by overly complicated winding due to excessive distance.

[0123] In some optional embodiments, please refer to Figure 3-Figure 4 and Fig. 22 , Fig. 22 : is a schematic diagram of a working method of a touch display panel provided by an embodiment of the present invention. The working method of the touch display panel provided by this embodiment can at least be applied to the touch display panel 000 in the above embodiment to perform detection work; specifically, the working method at least includes a first detection stage. In the first detection stage, the first detection circuit 20 is turned on, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned on;

[0124] The first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode A, and the first detection circuit 20 provides a second short-circuit detection signal to at least other multiple first touch electrodes 101 adjacent to the first touch electrode A in the first area AA1. The fourth detection circuit 50 provides a second short-circuit detection signal to multiple second touch electrodes 102 adjacent to the first touch electrode A in the second area AA2; wherein the first touch electrode A is the first touch electrode 101A, which refers to a first touch electrode 101 in the first area AA1 that is adjacent to the second area AA2, and is named as the first touch electrode 101A. Optionally, the first short-circuit detection signal may include an AC voltage signal, and the second short-circuit detection signal may include a DC voltage signal.

[0125] The working method provided in this embodiment is at least used for Figure 3 and Figure 4 The touch display panel shown in the figure detects whether a short circuit problem occurs between each touch electrode 10. The working method of this embodiment includes at least a first detection stage. The first detection stage mainly detects whether a short circuit problem occurs between the first touch electrode 101A (a first touch electrode 101 adjacent to the second area AA2) and other touch electrodes around it. In the first detection stage, the first detection circuit 20 is turned on, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned on, that is, the first detection circuit 20 is electrically connected to the first touch electrode column 101L of the first area AA1, the second detection circuit 30 is electrically connected to the second touch electrode column 102L of the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L of the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L of the second area AA2. Figure 4 The first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode 101A, and the first detection circuit 20 simultaneously provides a first short-circuit detection signal to at least other first touch electrodes 101 (such as Figure 3 and Figure 4 The fourth detection circuit 50 provides a second short-circuit detection signal to a plurality of second touch electrodes 102 (such as the first touch electrode 101B, the first touch electrode 101C, and the first touch electrode 101D) adjacent to the first touch electrode 101A in the second area AA2. Figure 3 and Figure 4 The second touch electrode 102E shown in FIG. 1 provides a second short-circuit detection signal. Optionally, the first short-circuit detection signal may be an alternating current voltage signal AC, and the second short-circuit detection signal may be a direct current voltage signal DC, so that the first touch electrode 101A and the other plurality of first touch electrodes 101 and second touch electrodes 102 (such as Figure 3and Figure 4 The signal types on the first touch electrode 101B, the first touch electrode 101C, the first touch electrode 101D in the first area AA1, and the second touch electrode 102E in the second area AA2 are different. If the first touch electrode 101A is short-circuited with any of the first touch electrode 101B, the first touch electrode 101C, the first touch electrode 101D, and the second touch electrode 102E, the first short-circuit detection signal (AC voltage signal) of the first touch electrode 101A will be pulled down by the second short-circuit detection signal (DC voltage signal). , then the amount of detection data signal fed back to the detection chip (such as a driver chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the first touch electrode 101A in the first area AA1 is short-circuited with the first touch electrode 101B, the first touch electrode 101C, the first touch electrode 101D, and the second touch electrode 102E. That is, effective detection of the first touch electrode 101 at the boundary between the first area AA1 and the second area AA2 can be achieved, thereby improving the detection accuracy, which is beneficial to improving the output yield of the product.

[0126] In some optional embodiments, please refer to Figure 3 , Figure 6 and Fig.23 , Fig.23 is a schematic diagram of a framework of another working method of a touch display panel provided in an embodiment of the present invention. The working method of a touch display panel provided in this embodiment can at least be applied to the touch display panel 000 in the above embodiment for detection work; specifically, the working method at least includes a second detection stage. Optionally, the second detection stage can be performed after the first detection stage, or the second detection stage can be performed before the first detection stage. This embodiment is not specifically limited, and it is only required that the working method at least includes the first detection stage and the second detection stage. Fig.23 The second detection stage is performed after the first detection stage. In the touch display panel 000 provided in this embodiment, the plurality of second touch electrodes 102 include at least one second touch electrode A adjacent to the first area AA1, namely the second touch electrode 102A, which refers to a second touch electrode 102 disposed adjacent to the first area AA1 in the second area AA2, and is named the second touch electrode 102A.

[0127] The working method provided in this embodiment further includes a second detection stage. In the second detection stage, the first detection circuit 20 is turned off, the second detection circuit 30 is turned on, the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off;

[0128] The second detection circuit 30 provides a first short-circuit detection signal to the second touch electrode 102A, and the second detection circuit 30 provides a second short-circuit detection signal to at least the other plurality of second touch electrodes 102 adjacent to the second touch electrode 102A in the second area AA2, and the third detection circuit 40 provides a second short-circuit detection signal to the plurality of first touch electrodes 101 adjacent to the second touch electrode 102A in the first area AA1. Optionally, the first short-circuit detection signal may include an AC voltage signal, and the second short-circuit detection signal may include a DC voltage signal.

[0129] The working method provided in this embodiment is at least used for Figure 3 and Figure 6 The touch display panel shown in the figure detects whether a short circuit problem occurs between each touch electrode 10. The working method of this embodiment also includes at least a second detection stage. The second detection stage is mainly to detect whether a short circuit problem occurs between the second touch electrode 102A (a second touch electrode 102 adjacent to the first area AA1) and other touch electrodes around it. In the second detection stage, the first detection circuit 20 is turned off, the second detection circuit 30 is turned on, the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off, that is, the first detection circuit 20 is electrically connected to the first touch electrode column 101L of the first area AA1. The path is disconnected, the second detection circuit 30 is electrically connected to the second touch electrode column 102L of the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L of the first area AA1, and the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L of the second area AA2. Figure 6 The second detection circuit 30 provides a first short-circuit detection signal to the second touch electrode 102A, and the second detection circuit 30 simultaneously provides a first short-circuit detection signal to at least other second touch electrodes 102 (such as Figure 3 and Figure 6 The third detection circuit 40 provides a second short-circuit detection signal to the plurality of first touch electrodes 101 (such as the second touch electrode 102B, the second touch electrode 102C, and the second touch electrode 102D) adjacent to the second touch electrode 102A in the first area AA1. Figure 3 and Figure 6 The first touch electrode 101E shown in FIG. 1 provides a second short-circuit detection signal. Optionally, the first short-circuit detection signal may be an alternating current voltage signal AC, and the second short-circuit detection signal may be a direct current voltage signal DC, so that the second touch electrode 102A and the other plurality of second touch electrodes 102 and the first touch electrode 101 (such as Figure 3 and Figure 6The signal types on the second touch electrode 102B, the second touch electrode 102C, the second touch electrode 102D in the second area AA2 and the first touch electrode 101E in the first area AA1 are different. If the second touch electrode 102A is short-circuited with any of the second touch electrode 102B, the second touch electrode 102C, the second touch electrode 102D and the first touch electrode 101E, the first short-circuit detection signal (AC voltage signal) of the second touch electrode 102A will be pulled down by the second short-circuit detection signal (DC voltage signal). , then the amount of detection data signal fed back to the detection chip (such as a driver chip or a flexible circuit board) will change significantly, that is, the detection signal will be abnormal. Therefore, it is easier to detect whether the second touch electrode 102A in the second area AA2 is short-circuited with the second touch electrode 102B, the second touch electrode 102C, the second touch electrode 102D, and the first touch electrode 101E, that is, the second touch electrode 102 at the boundary between the first area AA1 and the second area AA2 can be effectively detected, thereby improving the detection accuracy, which is beneficial to improving the output yield of the product.

[0130] Optional, such as Figure 3 , Figure 5 and Fig.24 As shown, Fig.24 is a schematic diagram of a framework of another working method of a touch display panel provided by an embodiment of the present invention. The working method provided by this embodiment may also include a third detection stage and a fourth detection stage. Further, optionally, the third detection stage may be performed after the first detection stage, or the third detection stage may be performed before the first detection stage, the fourth detection stage may be performed after the second detection stage, or the fourth detection stage may be performed before the second detection stage. This embodiment is not specifically limited, and it is only required that the working method at least includes the first detection stage, the second detection stage, the third detection stage and the fourth detection stage. Fig.24 The fourth detection stage is performed after the third detection stage, the third detection stage is performed after the second detection stage, and the second detection stage is performed after the first detection stage.

[0131] The third detection stage provided in this embodiment is mainly used to detect whether the first touch electrodes 101 at other positions in the first area AA1 (which can be understood as other first touch electrodes 101 not adjacent to the second area AA2) are short-circuited. Figure 3 and Figure 5 When the first touch electrode 1010 shown in FIG. 1 is short-circuited, in the third detection phase, the first detection circuit 20 can be turned on, the second detection circuit 30 can be turned off, the third detection circuit 40 can be turned off, and the fourth detection circuit 50 can be turned off ( Figure 5The cross in the figure indicates that the electrical connection path is closed and not conductive), the first detection circuit 20 provides a first short-circuit detection signal to the first touch electrode 1010, and the first detection circuit 20 provides a second short-circuit detection signal to the other multiple first touch electrodes 101 adjacent to the first touch electrode 1010 in the first area AA1. If the first touch electrode 1010 is short-circuited with other first touch electrodes 101 around it, the amount of the detection data signal fed back to the detection chip will change significantly, that is, the detection signal will be abnormal, so as to realize the detection of the first touch electrode 101 at a position not adjacent to the second area AA2 in the first area AA1. Since the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned off at this time, it is beneficial to reduce the power consumption of the panel.

[0132] The fourth detection stage provided in this embodiment is mainly used to detect whether the second touch electrodes 102 at other positions in the second area AA2 (which can be understood as other second touch electrodes 102 not adjacent to the first area AA1) are short-circuited. Figure 3 and Figure 7 The second touch electrode 1020 shown in the figure performs short circuit detection. In the fourth detection stage, the first detection circuit 20 can be turned off, the second detection circuit 30 can be turned on, the third detection circuit 40 can be turned off, and the fourth detection circuit 50 can be turned off ( Figure 7 The cross in the figure indicates that the electrical connection path is closed and not conductive), the second detection circuit 30 provides a first short-circuit detection signal to the second touch electrode 1020, and the second detection circuit 30 provides a second short-circuit detection signal to the other multiple second touch electrodes 102 adjacent to the second touch electrode 1020 in the second area AA2. If the second touch electrode 1020 is short-circuited with other second touch electrodes 102 around it, the amount of the detection data signal fed back to the detection chip will change significantly, that is, the detection signal will be abnormal, so as to realize the detection of the second touch electrode 102 at a position not adjacent to the first area AA1 in the second area AA2. Since the first detection circuit 20 is turned off, the third detection circuit 40 is turned off, and the fourth detection circuit 50 is turned off at this time, it is beneficial to reduce the power consumption of the panel.

[0133] In some optional embodiments, please refer to Figure 8 , Fig. 9 , Fig.10 and Fig.25 , Fig.25: is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention. The working method provided by this embodiment is used for performing detection work on a touch display panel, wherein the first detection circuit 20 of the touch display panel 000 includes m first detection modules 200, and one first detection module 200 corresponds to one first touch electrode column 101L; the first detection module 200 includes n1 first detection units 201, and in the same first detection module 200, one first detection unit 201 is electrically connected to one first touch electrode 101 of the same first touch electrode column 101L through a first touch signal line 601;

[0134] The second detection circuit 30 includes m second detection modules 300, one second detection module 300 corresponds to one second touch electrode column 102L; the second detection module 300 includes n2 second detection units 301, and in the same second detection module 300, one second detection unit 301 is electrically connected to one second touch electrode 102 of the same second touch electrode column 102L through the second touch signal line 602;

[0135] The third detection circuit 40 includes m third detection modules 400, one third detection module 400 corresponds to one first touch electrode column 101L; the third detection module 400 includes n1 third detection units 401, and in the same third detection module 400, one third detection unit 401 is electrically connected to one first touch electrode 101 of the same first touch electrode column 101L through the first touch signal line 601;

[0136] The fourth detection circuit 50 includes m fourth detection modules 500, one fourth detection module 500 corresponds to one second touch electrode column 102L; the fourth detection module 500 includes n2 fourth detection units 501, and in the same fourth detection module 500, one fourth detection unit 501 is electrically connected to a second touch electrode 102 of the same second touch electrode column 102L through a second touch signal line 602.

[0137] That is, in the non-display area NA of the touch display panel 000 that performs detection using the working method of this embodiment, the first detection circuit 20, the second detection circuit 30, the third detection circuit 40, and the fourth detection circuit 50 are all mux circuit structures (for details, refer to Figure 8-Figure 10The illustrated embodiment part is described in detail, and this embodiment is not repeated here). A multi-way selection circuit structure in which one input end of the mux circuit structure corresponds to at least one output end is used to realize electrical connection with touch electrodes 10 in different areas of the touch display panel 000, and provide touch or display signals for the touch electrodes 10 to ensure that the area of ​​the touch electrodes 10 can be small enough to meet the touch accuracy requirements. At the same time, the number of signal transmission channels can be increased by designing the first detection circuit 20, the second detection circuit 30, the third detection circuit 40 and the fourth detection circuit 50 to be mux circuit structures, thereby reducing the power consumption of the panel.

[0138] The working method provided in this embodiment is that in the first detection stage, the first detection unit 201 connected to the first touch electrode 101A is turned on to control the first touch electrode 101A to access the first short-circuit detection signal; in the first area AA1, the multiple first detection units 201 connected to the other multiple first touch electrodes 101 adjacent to the first touch electrode 101A are turned on to control the other multiple first touch electrodes 101 adjacent to the first touch electrode 101A in the first area AA1 to access the second short-circuit detection signal; in the second area AA2, the multiple fourth detection units 501 connected to the multiple second touch electrodes 102 adjacent to the first touch electrode 101A are turned on to control the multiple second touch electrodes 102 adjacent to the first touch electrode 101A in the second area AA2 to access the second short-circuit detection signal.

[0139] In this embodiment, the first detection circuit 20 can independently control whether the first detection unit 201 of the first detection circuit 20 is connected to the first touch electrode 101 through the first clock signal connected to the first control terminal TPMUX1, the second detection circuit 30 can independently control whether the second detection unit 301 of the second detection circuit 30 is connected to the second touch electrode 102 through the second clock signal connected to the second control terminal TPMUX2, the third detection circuit 40 can independently control whether the third detection unit 401 of the third detection circuit 20 is connected to the first touch electrode 101 through the third clock signal connected to the third control terminal RXSW1, and the fourth detection circuit 50 can independently control whether the fourth detection unit 501 of the fourth detection circuit 50 is connected to the second touch electrode 102 through the fourth clock signal connected to the fourth control terminal RXSW2, thereby realizing independent control between each detection circuit and the touch electrodes 10 in different regions, and flexibly providing different touch electrodes 10 in different regions with the required type of signal, so as to better improve the accuracy of short circuit detection between the touch electrodes 10 and improve product yield.

[0140] In some optional embodiments, please refer to Figure 14-Figure 21 and Fig.26 As shown, Fig.26is a schematic diagram of another working method of a touch display panel provided by an embodiment of the present invention. The non-display area NA of the touch display panel 000 for displaying by applying the working method provided by this embodiment further includes a first switch circuit 80 and a second switch circuit 90;

[0141] The first switch circuit 80 includes m first switch modules 800, one first switch module 800 corresponds to one first touch electrode column 101L; the first switch module 800 includes n1 first switch units 801, and in the same first switch module 800, one first switch unit 801 is electrically connected to one first touch electrode 101 of the same first touch electrode column 101L through the first touch signal line 601;

[0142] The second switch circuit 90 includes m second switch modules 900, and one second switch module 900 corresponds to one second touch electrode column 102L; the second switch module 900 includes n2 second switch units 901, and in the same second switch module 900, one second switch unit 901 is electrically connected to a second touch electrode 102 in the same second touch electrode column 102L through a second touch signal line 602.

[0143] The working method provided in this embodiment also includes a display stage; further optionally, the display stage is executed after the first detection stage, the second detection stage, the third detection stage, and the fourth detection stage provided in this embodiment, that is, the display stage is entered after it is detected that there is no short circuit problem between the touch electrodes 10 in the touch display panel 000.

[0144] In the display stage, the first detection circuit 20 is turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned on, the fourth detection circuit 50 is turned off, the first switch circuit 80 is turned off, and the second switch circuit 90 is turned on; the third detection circuit 40 provides a first common voltage signal VTCOMB to multiple first touch electrodes 101 in the first area AA1, and the second switch circuit 90 provides a first common voltage signal VTCOMB to multiple second touch electrodes 102 in the second area AA2.

[0145] This embodiment explains that the touch display panel 000 for displaying by applying the above working method also includes a first switch circuit 80 and a second switch circuit 90 for providing a common voltage signal to the panel. Optionally, the first switch circuit 80 and the second switch circuit 90 may also be mux circuit structures (for details, please refer to Figure 14-Figure 21 The description of the exemplary embodiment is omitted here, and the control signal provided by the fifth control terminal VTCOMSW1 and the sixth control terminal VTCOMSW2 is used to realize the time-sharing scanning drive in the first area AA1 and the second area AA2, that is, to provide the common voltage signal in a time-sharing manner. Fig.14 and Fig.15 , Figure 17-Figure 19 As shown, the working method of this embodiment also includes a display stage performed after the detection stage. In the display stage, the first detection circuit 20 is turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned on, the fourth detection circuit 50 is turned off, the first switch circuit 80 is turned off, and the second switch circuit 90 is turned on, so that the first detection circuit 20 is electrically connected to the first touch electrode column 101L of the first area AA1 and the second detection circuit 30 is electrically connected to the second touch electrode column 102L of the second area AA2, the third detection circuit 40 is electrically connected to the first touch electrode column 101L of the first area AA1, the fourth detection circuit 50 is electrically connected to the second touch electrode column 102L of the second area AA2, the first switch circuit 80 is electrically connected to the first touch electrode column 101L of the first area AA1 and the second switch circuit 90 is electrically connected to the second touch electrode column 102L of the second area AA2 ( Fig.15The cross in the figure indicates that the electrical connection path is disconnected), the third detection circuit 40 provides the first common voltage signal VTCOMB to the multiple first touch electrodes 101 in the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to the multiple second touch electrodes 102 in the second area AA2, so that the touch electrodes 10 in the entire first area AA1 and the second area AA2 of the touch display panel 000 are used as common electrodes and receive the same first common voltage signal VTCOMB to achieve normal display of the touch display panel 000. In the touch display panel 000 of the present embodiment, during the display stage, the third detection circuit 40 provides the first common voltage signal VTCOMB to the plurality of first touch electrodes 101 of the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to the plurality of second touch electrodes 102 of the second area AA2, that is, the second switch circuit 90 is additionally provided to cooperate with the third detection circuit 40, and the two together provide the first common voltage signal VTCOMB to the touch electrodes 10 in different areas within the display area AA, so that when only the third detection circuit 40 and the fourth detection circuit 50 are used to provide the common voltage signal, it can be avoided that when the third detection circuit 40 and the fourth detection circuit 50 are connected to the same signal input terminal (the signal input terminal refers to the signal terminal on the driver chip or the flexible circuit board), one signal terminal needs to be electrically connected to two touch electrodes 10 in the first area AA1 and the second area AA2, that is, one signal terminal on the driver chip or the flexible circuit board needs to drive two touch electrodes 10, causing a problem of drive overload affecting the display effect. In this embodiment, when displaying, only the third detection circuit 40 is turned on, and the fourth detection circuit 50 is turned off and does not work. A second switch circuit 90 is added to cooperate with the third detection circuit 40. The third detection circuit 40 provides a first common voltage signal VTCOMB to multiple first touch electrodes 101 in the first area AA1, and the second switch circuit 90 also provides the first common voltage signal VTCOMB to multiple second touch electrodes 102 in the second area AA2, which is beneficial to reduce the load of the subsequent driving chip or flexible circuit board bound to the touch display panel 000, and further helps to further reduce the panel power consumption.

[0146] In some optional embodiments, please refer to Figure 14-Figure 21 and Fig. 27 As shown, Fig. 27 It is a framework diagram of another working method of the touch display panel provided by an embodiment of the present invention. The working method provided by this embodiment also includes a display stage; further optionally, the display stage is executed after the first detection stage, the second detection stage, the third detection stage, and the fourth detection stage provided by this embodiment, that is, the display stage is entered after it is detected that there is no short circuit problem between the touch electrodes 10 in the touch display panel 000.

[0147] In the display stage, the first detection circuit 20 is turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, the fourth detection circuit 50 is turned on, the first switch circuit 80 is turned on, and the second switch circuit 90 is turned off; the fourth detection circuit 50 provides a second common voltage signal VTCOMA to the multiple second touch electrodes 102 of the second area AA2, and the first switch circuit 80 provides a second common voltage signal VTCOMA to the multiple first touch electrodes 101 of the first area AA1.

[0148] This embodiment explains that the touch display panel 000 for displaying by applying the above working method also includes a first switch circuit 80 and a second switch circuit 90 for providing a common voltage signal to the panel. Optionally, the first switch circuit 80 and the second switch circuit 90 may also be mux circuit structures (for details, please refer to Figure 14-Figure 21 The description of the exemplary embodiment is omitted here, and the control signal provided by the fifth control terminal VTCOMSW1 and the sixth control terminal VTCOMSW2 is used to realize the time-sharing scanning drive in the first area AA1 and the second area AA2, that is, to provide the common voltage signal in a time-sharing manner. Fig.14 and Fig.16 , Figure 17-Figure 19 As shown, in the display stage of the touch display panel 000 of the present embodiment, the first detection circuit 20 is turned off, the second detection circuit 30 is turned off, the third detection circuit 40 is turned off, the fourth detection circuit 50 is turned on, the first switch circuit 80 is turned on, and the second switch circuit 90 is turned off, so that the electrical connection path between the first detection circuit 20 and the first touch electrode column 101L of the first area AA1 is disconnected, the electrical connection path between the second detection circuit 30 and the second touch electrode column 102L of the second area AA2 is disconnected, the electrical connection path between the third detection circuit 40 and the first touch electrode column 101L of the first area AA1 is disconnected, the electrical connection path between the fourth detection circuit 50 and the second touch electrode column 102L of the second area AA2 is connected, the electrical connection path between the first switch circuit 80 and the first touch electrode column 101L of the first area AA1 is connected, and the electrical connection path between the second switch circuit 90 and the second touch electrode column 102L of the second area AA2 is disconnected ( Fig.16The cross in the figure indicates that the electrical connection path is disconnected), the fourth detection circuit 50 provides the second common voltage signal VTCOMA to the multiple second touch electrodes 102 in the second area AA2, and the first switch circuit 80 also provides the second common voltage signal VTCOMA to the multiple first touch electrodes 101 in the first area AA1, so that the touch electrodes 10 in the entire first area AA1 and the second area AA2 of the touch display panel 000 are used as common electrodes and receive the same second common voltage signal VTCOMA to achieve normal display of the touch display panel 000. In the touch display panel 000 of the present embodiment, during the display stage, the second common voltage signal VTCOMA is provided to the plurality of second touch electrodes 102 in the second area AA2 through the fourth detection circuit 50, and the first switch circuit 80 also provides the second common voltage signal VTCOMA to the plurality of first touch electrodes 101 in the first area AA1, that is, the first switch circuit 80 is additionally provided to cooperate with the fourth detection circuit 50, and the two together provide the second common voltage signal VTCOMA to the touch electrodes 10 in different areas within the display area AA, so that when only the third detection circuit 40 and the fourth detection circuit 50 are used to provide the common voltage signal, it can be avoided that when the third detection circuit 40 and the fourth detection circuit 50 are connected to the same signal input terminal (the signal input terminal refers to the signal terminal on the driving chip or the flexible circuit board), one signal terminal needs to be electrically connected to two touch electrodes 10 in the first area AA1 and the second area AA2, that is, one signal terminal on the driving chip or the flexible circuit board needs to drive two touch electrodes 10, causing a driving overload problem affecting the display effect. In this embodiment, when displaying, only the fourth detection circuit 50 is turned on, and the third detection circuit 40 is turned off and does not work. A first switch circuit 80 is added to cooperate with the fourth detection circuit 50. The fourth detection circuit 50 provides a second common voltage signal VTCOMA to the multiple second touch electrodes 102 in the second area AA2, and the first switch circuit 80 also provides a second common voltage signal VTCOMA to the multiple first touch electrodes 101 in the first area AA1, which is beneficial to reduce the load of the subsequent driving chip or flexible circuit board bound to the touch display panel 000, and further helps to further reduce the panel power consumption.

[0149] In some alternative embodiments, please refer to Fig.28 , Fig.28 1 is a schematic diagram of a planar structure of a display device provided in an embodiment of the present invention. The display device 111 provided in this embodiment includes the touch display panel 000 provided in the above embodiment of the present invention. Fig.28The embodiment only takes a mobile phone as an example to illustrate the display device 111. It can be understood that the display device 111 provided in the embodiment of the present invention can be a computer, a television, a car display device or other display device 111 with a display function, and the present invention does not specifically limit this. The display device 111 provided in the embodiment of the present invention has the beneficial effects of the touch display panel 000 provided in the embodiment of the present invention. For details, please refer to the specific description of the touch display panel 000 in the above embodiments, and this embodiment will not be repeated here.

[0150] It can be seen from the above embodiments that the touch display panel and its working method and display device provided by the present invention achieve at least the following beneficial effects:

[0151] In the touch display panel provided by the present invention, through the setting of the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit, it can not only be applicable to large-sized touch display panels, while ensuring the touch accuracy of the large-sized panel, but also can increase the number of signal transmission channels by designing the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit electrically connected to the touch electrode, thereby reducing the power consumption of the panel. And when the present invention detects the touch electrode at the boundary position between the first area and the second area in the display area through the first detection circuit, the second detection circuit, the third detection circuit and the fourth detection circuit, the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on, so that the first detection circuit provides a first short-circuit detection signal to the first touch electrode, the first detection circuit provides a second short-circuit detection signal to at least the other multiple first touch electrodes adjacent to the first touch electrode in the first area, and the fourth detection circuit provides a second short-circuit detection signal to the multiple second touch electrodes adjacent to the first touch electrode in the second area, so as to achieve effective detection of the touch electrode at the boundary position between the first area and the second area, which is conducive to improving the detection accuracy and ensuring the product yield.

[0152] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A touch display panel, characterized in that: include: a display area and a non-display area arranged around the display area; the display area includes a plurality of touch electrodes arranged in an array, and the plurality of touch electrodes include at least a plurality of first touch electrodes and a plurality of second touch electrodes; The display area includes a first area and a second area adjacently arranged along a first direction, a plurality of the first touch electrodes are located in the first area, n1 of the first touch electrodes are arranged along the first direction to form a first touch electrode column, and m of the first touch electrode columns are arranged along a second direction; a plurality of the second touch electrodes are located in the second area, n2 of the second touch electrodes are arranged along the first direction to form a second touch electrode column, and m of the second touch electrode columns are arranged along the second direction; wherein the first direction intersects the second direction, and n1, n2, and m are all positive integers; The plurality of first touch electrodes include at least one first touch electrode A adjacent to the second area; The non-display area at least includes a first detection circuit, a second detection circuit, a third detection circuit and a fourth detection circuit, the first detection circuit is electrically connected to the first touch electrode column of the first area, the second detection circuit is electrically connected to the second touch electrode column of the second area, the third detection circuit is electrically connected to the first touch electrode column of the first area, and the fourth detection circuit is electrically connected to the second touch electrode column of the second area; When detecting the first touch electrode A, the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on.

2. The touch display panel according to claim 1, characterized in that: The plurality of second touch electrodes include at least one second touch electrode A adjacent to the first area; When detecting the second touch electrode A, the first detection circuit is turned off, the second detection circuit is turned on, the third detection circuit is turned on, and the fourth detection circuit is turned off.

3. The touch display panel according to claim 1, characterized in that: The first detection circuit includes m first detection modules, one of which corresponds to one first touch electrode column; the first detection module includes n1 first detection units, and in the same first detection module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through a first touch signal line; The second detection circuit includes m second detection modules, one second detection module corresponds to one second touch electrode column; the second detection module includes n2 second detection units, and in the same second detection module, one second detection unit is electrically connected to one second touch electrode in the same second touch electrode column through a second touch signal line; The third detection circuit includes m third detection modules, one of which corresponds to one first touch electrode column; the third detection module includes n1 third detection units, and in the same third detection module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through the first touch signal line; The fourth detection circuit includes m fourth detection modules, one fourth detection module corresponds to one second touch electrode column; the fourth detection module includes n2 fourth detection units, and in the same fourth detection module, one fourth detection unit is electrically connected to one second touch electrode in the same second touch electrode column through the second touch signal line.

4. The touch display panel according to claim 3, characterized in that: The first detection circuit includes a first control terminal, a plurality of first input terminals and a plurality of first output terminals, the first detection circuit includes a plurality of first transistors, the first detection module includes n1 first transistors, and one first detection unit corresponds to one first transistor; the gates of the first transistors are all connected to the first control terminal, the first electrodes of the first transistors are respectively connected to the first input terminals in a one-to-one correspondence, and the second electrodes of the first transistors are respectively connected to the first output terminals in a one-to-one correspondence; The second detection circuit includes a second control terminal, a plurality of second input terminals and a plurality of second output terminals, the second detection circuit includes a plurality of second transistors, the second detection module includes n2 second transistors, and one second detection unit corresponds to one second transistor; the gates of the second transistors are connected to the second control terminal, the first electrodes of the second transistors are connected to the second input terminals in a one-to-one correspondence, and the second electrodes of the second transistors are connected to the second output terminals in a one-to-one correspondence; The third detection circuit includes a third control terminal, a plurality of third input terminals and a plurality of third output terminals, the third detection circuit includes a plurality of third transistors, the third detection module includes n1 third transistors, and one third detection unit corresponds to one third transistor; the gates of the third transistors are all connected to the third control terminal, the first electrodes of the third transistors are respectively connected to the third input terminals in a one-to-one correspondence, and the second electrodes of the third transistors are respectively connected to the third output terminals in a one-to-one correspondence; The fourth detection circuit includes a fourth control terminal, a plurality of fourth input terminals and a plurality of fourth output terminals, the fourth detection circuit includes a plurality of fourth transistors, the fourth detection module includes n2 fourth transistors, and one fourth detection unit corresponds to one fourth transistor; the gates of the fourth transistors are all connected to the fourth control terminal, the first electrodes of the fourth transistors are respectively connected to the fourth input terminals in a one-to-one correspondence, and the second electrodes of the fourth transistors are respectively connected to the fourth output terminals in a one-to-one correspondence; The first output end and the third output end corresponding to the same first touch electrode are connected to the same first touch signal line; The second output end and the fourth output end corresponding to the same second touch electrode are connected to the same second touch signal line.

5. The touch display panel according to claim 4, characterized in that: The non-display area includes a binding area, and the binding area includes a plurality of conductive pads; The first input end and the third input end corresponding to the same first touch electrode are connected to the same conductive pad; The second input end and the fourth input end corresponding to the same second touch electrode are connected to the same conductive pad.

6. The touch display panel according to claim 5, characterized in that: n1=n2; Along the direction from the first area to the second area, the first touch signal line connected to the ath first touch electrode and the second touch signal line connected to the ath second touch electrode are electrically connected to the same conductive pad respectively; wherein a is a positive integer less than or equal to n1.

7. The touch display panel according to claim 1, characterized in that: The non-display area further includes a first switch circuit and a second switch circuit; The first switch circuit includes m first switch modules, one of which corresponds to one first touch electrode column; the first switch module includes n1 first switch units, and in the same first switch module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through a first touch signal line; The second switch circuit includes m second switch modules, one second switch module corresponds to one second touch electrode column; the second switch module includes n2 second switch units, and in the same second switch module, one second switch unit is electrically connected to one second touch electrode in the same second touch electrode column through a second touch signal line.

8. The touch display panel according to claim 7, characterized in that: The first switch circuit includes a fifth control terminal, a plurality of fifth input terminals and a plurality of fifth output terminals, the first switch circuit includes a plurality of fifth transistors, the first switch module includes n1 fifth transistors, and one first switch unit corresponds to one fifth transistor; the gates of the fifth transistors are all connected to the fifth control terminal, the first electrodes of the fifth transistors are respectively connected to the fifth input terminals in a one-to-one correspondence, and the second electrodes of the fifth transistors are respectively connected to the fifth output terminals in a one-to-one correspondence; The second switch circuit includes a sixth control terminal, a plurality of sixth input terminals and a plurality of sixth output terminals, the second switch circuit includes a plurality of sixth transistors, the second switch module includes n2 sixth transistors, and one second switch unit corresponds to one sixth transistor; the gates of the sixth transistors are all connected to the sixth control terminal, the first electrodes of the sixth transistors are respectively connected to the sixth input terminals in a one-to-one correspondence, and the second electrodes of the sixth transistors are respectively connected to the sixth output terminals in a one-to-one correspondence. The plurality of sixth input terminals are all connected to a first common voltage signal; The plurality of fifth input terminals are all connected to the second common voltage signal.

9. The touch display panel according to claim 8, characterized in that: The plurality of fifth input terminals are connected to each other, and the plurality of sixth input terminals are connected to each other.

10. The touch display panel according to claim 1, characterized in that: In the first direction, the first detection circuit, the second detection circuit, the third detection circuit, and the fourth detection circuit are located in the non-display area on the same side of the display area.

11. The touch display panel according to claim 1, characterized in that: The non-display area at least includes a first non-display area and a second non-display area, and in the first direction, the first non-display area and the second non-display area are respectively located at two opposite sides of the display area; The first detection circuit and the third detection circuit are located in the first non-display area; The second detection circuit and the fourth detection circuit are located in the second non-display area.

12. A method for operating a touch display panel, characterized in that: The working method is applied to the touch display panel according to any one of claims 1 to 11; The working method at least includes a first detection stage, in which the first detection circuit is turned on, the second detection circuit is turned off, the third detection circuit is turned off, and the fourth detection circuit is turned on; The first detection circuit provides a first short-circuit detection signal to the first touch electrode A, the first detection circuit provides a second short-circuit detection signal to at least the other multiple first touch electrodes adjacent to the first touch electrode A in the first area, and the fourth detection circuit provides a second short-circuit detection signal to the multiple second touch electrodes adjacent to the first touch electrode A in the second area.

13. The working method according to claim 12, characterized in that: In the touch display panel, the plurality of second touch electrodes include at least one second touch electrode A adjacent to the first area; The working method further includes a second detection stage, in which the first detection circuit is turned off, the second detection circuit is turned on, the third detection circuit is turned on, and the fourth detection circuit is turned off; The second detection circuit provides the first short-circuit detection signal to the second touch electrode A, the second detection circuit provides the second short-circuit detection signal to at least the other multiple second touch electrodes adjacent to the second touch electrode A in the second area, and the third detection circuit provides the second short-circuit detection signal to the multiple first touch electrodes adjacent to the second touch electrode A in the first area.

14. The working method according to any one of claims 12 or 13, characterized in that: The first short-circuit detection signal includes an AC voltage signal, and the second short-circuit detection signal includes a DC voltage signal.

15. The working method according to claim 12, characterized in that: The first detection circuit includes m first detection modules, one of which corresponds to one first touch electrode column; the first detection module includes n1 first detection units, and in the same first detection module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through a first touch signal line; The second detection circuit includes m second detection modules, one second detection module corresponds to one second touch electrode column; the second detection module includes n2 second detection units, and in the same second detection module, one second detection unit is electrically connected to one second touch electrode in the same second touch electrode column through a second touch signal line; The third detection circuit includes m third detection modules, one of which corresponds to one first touch electrode column; the third detection module includes n1 third detection units, and in the same third detection module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through the first touch signal line; The fourth detection circuit includes m fourth detection modules, one of which corresponds to one second touch electrode column; the fourth detection module includes n2 fourth detection units, and in the same fourth detection module, one of which is electrically connected to one of the second touch electrodes in the same second touch electrode column through the second touch signal line; In the first detection stage, the first detection unit connected to the first touch electrode A is turned on to control the first touch electrode A to access the first short-circuit detection signal; in the first zone, the multiple first detection units connected to the other multiple first touch electrodes adjacent to the first touch electrode A are turned on to control the other multiple first touch electrodes adjacent to the first touch electrode A in the first zone to access the second short-circuit detection signal; in the second zone, the multiple fourth detection units connected to the multiple second touch electrodes adjacent to the first touch electrode A are turned on to control the multiple second touch electrodes adjacent to the first touch electrode A in the second zone to access the second short-circuit detection signal.

16. The working method according to claim 15, characterized in that: The non-display area of ​​the touch display panel further includes a first switch circuit and a second switch circuit; The first switch circuit includes m first switch modules, one of which corresponds to one first touch electrode column; the first switch module includes n1 first switch units, and in the same first switch module, one of which is electrically connected to one of the first touch electrodes in the same first touch electrode column through the first touch signal line; The second switch circuit includes m second switch modules, one second switch module corresponds to one second touch electrode column; the second switch module includes n2 second switch units, and in the same second switch module, one second switch unit is electrically connected to one second touch electrode in the same second touch electrode column through the second touch signal line; The working method also includes a display stage; In the display stage, the first detection circuit is turned off, the second detection circuit is turned off, the third detection circuit is turned on, the fourth detection circuit is turned off, the first switch circuit is turned off, and the second switch circuit is turned on; the third detection circuit provides a first common voltage signal to the plurality of first touch electrodes in the first area, and the second switch circuit provides the first common voltage signal to the plurality of second touch electrodes in the second area; or, In the display stage, the first detection circuit is turned off, the second detection circuit is turned off, the third detection circuit is turned off, the fourth detection circuit is turned on, the first switch circuit is turned on, and the second switch circuit is turned off; the fourth detection circuit provides a second common voltage signal to the multiple second touch electrodes in the second zone, and the first switch circuit provides the second common voltage signal to the multiple first touch electrodes in the first zone.

17. A display device, characterized in that: A touch display panel comprising any one of claims 1-11.

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