WO2020052447A1

WO2020052447A1 - Display panel and drive method thereof

Info

Publication number: WO2020052447A1
Application number: PCT/CN2019/103505
Authority: WO
Inventors: 舒强; 黄威; 徐竹青
Original assignee: 南京中电熊猫平板显示科技有限公司; 南京中电熊猫液晶显示科技有限公司; 南京华东电子信息科技股份有限公司
Priority date: 2018-09-12
Filing date: 2019-08-30
Publication date: 2020-03-19
Also published as: CN109189269B; CN109189269A

Abstract

A display panel and a drive method thereof. The display panel comprises multiple control circuit modules (105). Each control circuit module (105) is connected to two adjacent touch electrode blocks (102, 103) in a column direction, and is used to receive a last-row scanning signal of the preceding one of the two adjacent touch electrode blocks (102, 103) and a first-row scanning signal of the succeeding one of the two touch adjacent electrode blocks. The control circuit module (105) is turned off when the last-row scanning signal and the first-row scanning signal are both at low electric levels so as to control the two adjacent touch electrode blocks (102, 103) to be electrically disconnected. The control circuit module is turned on when the last-row scanning signal and the first-row scanning signal are both at high electric levels so as to control the two adjacent touch electrode blocks (102, 103) to be electrically connected. The display panel resolves the issue of horizontal stripes formed near a boundary of touch electrodes, and is widely applicable to various pixel structures and panel architectures.

Description

Display panel and driving method thereof

Technical field

The present invention relates to the field of display technology, and in particular, to a display panel and a driving method thereof.

Background technique

The structure of a conventional self-capacitive in-cell touch display panel is shown in FIG. 1. The touch electrode 5 is divided into several independent touch electrode blocks, each touch electrode block includes a plurality of pixel units, and each touch electrode block is connected to the IC by a touch signal transmission line 4. When in the display stage, the touch signal transmission line 4 inputs a common electrode signal, the touch electrode 5 is used as a common electrode, and an electric field is formed between the touch electrode 5 and the pixel electrode to drive the liquid crystal display. When in the touch phase, the touch signal transmission line 4 inputs a touch sensing signal, the touch electrode 5 receives a change in the external electric field, generates a detection signal, and feeds back the detection signal to the IC through the touch signal transmission line 4.

As shown in FIG. 2, the touch electrode disconnection place 104 is located between the first touch electrode block 102 and the second touch electrode block 103, and the first touch electrode block 102 and the second touch electrode block 103 each includes a plurality of pixel units 101, and the touch electrode disconnection 104 between two adjacent touch electrode blocks in the column direction is located at the same row of pixel units.

The first level in the display panel ... the x-2 level, the x-1 level, the x level, the x + 1 level, the x + 2 level ... the touch electrode blocks are sequentially arranged along the column direction. As shown in FIG. 3, the x-1 level touch electrode signal Sx-1 represents the potential of the x-1 level touch electrode block, and the x level touch electrode signal Sx represents the x level touch electrode region The potential of the block. The n-1 level scan signal Gn-1 is the last line scan signal in the x-1 level touch electrode block, and Gn-2, Gn-3, and Gn-4 sequentially correspond to the scan signals above the last line scan signal. ; The n-th scan signal Gn is the first-row scan signal in the x-th touch electrode block, and Gn + 1, Gn + 2, Gn + 3 sequentially correspond to the scan signals below the first-row scan signal.

The voltage jump in the scanning line will affect the potential of the nearby touch electrode 5. When away from the touch electrode disconnection 104, there is always a pull up of the potential of the scan line to the touch electrode 5 to cancel the current scan line contact. The potential of the control electrode 5 is pulled down, and the potential of the touch electrode 5 is normal.

However, in the vicinity of the touch electrode disconnection 104, the potential of the touch electrode 5 can be pulled up to offset the current scan line. The scan line pulled down to the potential of the touch electrode 5 is located at the next level of the touch electrode. The formation of the offset causes the potential of the touch electrode 5 to be abnormal, and eventually the voltage difference near the touch electrode disconnection point 104 and other areas will be different, thereby generating horizontal stripes near the touch electrode interface.

Summary of the Invention

To solve the above technical problems, in a first aspect, an embodiment of the present invention provides a display panel, including:

A touch electrode, which is divided into a plurality of touch electrode blocks, each touch electrode block corresponding to a plurality of pixel units;

A plurality of control circuit modules, each control circuit module is connected to two adjacent touch electrode blocks in a column direction, and is used for receiving a tail scan signal of a previous one of the two adjacent touch electrode blocks and a rear A first line scan signal;

Wherein, the control circuit module is turned off when the last scanning signal and the first scanning signal are both low level, and controls the adjacent two touch electrode blocks to be electrically disconnected; Or, it is turned on when the first scanning signal is at a high level, and controls the two adjacent touch electrode blocks to be electrically connected.

In a preferred embodiment, the control circuit module includes a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistor, and a second resistor;

The control terminal of the first transistor inputs the tail scan signal, the control terminal of the second transistor inputs the first scan signal, and both the first path terminal of the first transistor and the first path terminal of the second transistor are connected to the first node, The second path terminal of the first transistor and the second path terminal of the second transistor both input a constant voltage low level;

The control terminal of the third transistor is connected to the first node, the first path terminal of the third transistor is connected to the second node, and the second path terminal of the third transistor inputs a constant voltage low level;

The control terminal of the fourth transistor is connected to the second node, the first path terminal of the fourth transistor is electrically connected to the previous one of the two adjacent touch electrode blocks, and the second path terminal of the fourth transistor is electrically connected. Sexually connect the latter of the two adjacent touch electrode blocks;

The first terminal of the first resistor and the first terminal of the second resistor both input the power supply voltage, the second terminal of the first resistor is connected to the first node, and the second terminal of the second resistor is connected to the second node.

In a preferred embodiment, the first transistor, the second transistor, the third transistor, and the fourth transistor include N-type transistors.

In a preferred embodiment, the resistance values of the on resistances of the first transistor, the second transistor, and the third transistor are much smaller than the resistance values of the first resistance and the second resistance.

In a preferred embodiment, the control circuit module includes a first transistor, a second transistor, a fifth transistor, and a first resistor;

A control terminal of the fifth transistor is connected to the first node, a first path terminal of the fifth transistor is electrically connected to a previous one of the two adjacent touch electrode blocks, and a second path terminal of the fifth transistor is electrically connected. Sexually connect the latter of the two adjacent touch electrode blocks;

A first terminal of the first resistor is input with a power supply voltage, and a second terminal of the first resistor is connected to the first node.

In a preferred embodiment, the first and second transistors include an N-type transistor, and the fifth transistor includes a P-type transistor.

In a preferred embodiment, the resistance values of the on-resistance of the first transistor and the second transistor are much smaller than the resistance value of the first resistor.

In a preferred embodiment, the common electrode signal is used as a common electrode when the touch electrode block is in a display stage;

When the touch electrode block is in a touch phase, a touch sensing signal is input, an external electric field change is received, a detection signal is generated, and the detection signal is transmitted to the IC.

In a preferred embodiment, the time when the touch sensing signal is input to the two adjacent touch electrode blocks is the time when the last scanning signal is at a high level and the first scanning signal is at a high level. There is no overlap in time.

In a second aspect, an embodiment of the present invention further provides a method for driving a display panel according to the foregoing embodiment, including:

When the last row scanning signal and the first row scanning signal are both low level, driving the corresponding control circuit module to turn off to control the adjacent two touch electrode blocks to be electrically disconnected;

When the last row scanning signal or the first row scanning signal is at a high level, driving the corresponding control circuit module to open to control the adjacent two touch electrode blocks to be electrically connected;

Wherein, the time when the touch sensing signals are input to the two adjacent touch electrode blocks does not overlap with the time when the tail scan signal is at a high level and the time when the first row scan signal is at a high level.

Compared with the prior art, the embodiments of the present invention can bring at least one of the following beneficial effects:

1. Without changing the basic structure of the pixel unit, by adding a control circuit module, when the scan lines on the upper and lower sides of the touch electrode disconnection are at a high level, the touch on the upper and lower sides of the touch electrode disconnection is high. The control electrode blocks are shorted, which solves the problem of horizontal stripes near the touch electrode interface and is widely applicable to a variety of pixel structures and panel architectures;

2. There is no overlap between the time when the two adjacent touch electrode blocks are input with the touch sensing signal and the time when the adjacent scan line where the touch electrode is disconnected is at a high level, so as to avoid affecting the touch effect.

BRIEF DESCRIPTION OF THE DRAWINGS

In the following, the preferred embodiments will be described in a clear and easy-to-understand manner with reference to the drawings to further explain the present invention.

1 is a schematic structural diagram of a conventional self-capacitive in-cell touch display panel;

2 is a schematic structural diagram of two adjacent touch electrode blocks in the display panel shown in FIG. 1;

3 is a waveform diagram of multi-level scanning signals and touch electrode potentials in the display panel shown in FIG. 1;

4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

5 is a schematic circuit diagram of a control circuit module according to an embodiment of the present invention;

FIG. 6 is a waveform diagram of a multi-level scanning signal and a node voltage according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic circuit diagram of a control circuit module in another embodiment of the present invention.

detailed description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, specific implementations of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are just some embodiments of the present invention. For those of ordinary skill in the art, other creative drawings can be obtained based on these drawings without any creative work, and Other implementations.

In order to make the drawings concise, each figure only schematically shows the parts related to the present invention, and they do not represent the actual structure as a product. Here, when a first element is described as “connected” to a second element, the first element may be directly connected to the second element or indirectly connected to the second element via one or more additional elements. Further, for the sake of clarity, certain elements that are not necessary for a full understanding of the present invention have been briefly omitted.

According to an embodiment of the present invention, the display panel may include a touch electrode that is divided into a plurality of independent touch electrode blocks, and each touch electrode block is connected to the IC by a touch signal transmission line. Also includes: level 1, level 2, ..., level n-1, level n, ..., level N scan lines, multiple data lines perpendicular to the scan lines, and intersections between the scan lines and data lines A plurality of pixel units are defined, and each touch electrode block corresponds to a plurality of pixel units.

It should be noted that the pixel unit in the display panel of the embodiment of the present invention can be applied to any current pixel unit structure design, and is widely applicable to a variety of thin film transistor manufacturing processes such as a-Si, LTPS, and IGZO.

A frame time of the display panel includes a display phase and a touch phase. When in the display stage, the touch signal transmission line inputs a common electrode signal, the touch electrode is used as a common electrode, and an electric field is formed between the touch electrode and the pixel electrode to drive the liquid crystal display. When in the touch phase, the touch signal transmission line inputs a touch sensing signal, and the touch electrodes receive changes in the external electric field to generate a detection signal and feedback the detection signal to the IC through the touch signal transmission line.

Taking the extending direction of the scanning line as the row direction and the extending direction of the data line as the column direction, the multiple touch electrode blocks arranged in parallel in the row direction are referred to as the same level touch electrode block. Level 2, ..., level x-1, level x, level x + 1, ... level X touch electrode blocks are arranged sequentially from top to bottom along the column direction. X> x> 1, and x and X are positive integers.

In order to solve the problem of horizontal stripes near the boundary of the touch electrodes in the touch display panel, the display panel of the embodiment of the present invention includes a plurality of control circuit modules, and each control circuit module connects two adjacent touch electrode blocks in the column direction. Each control circuit module receives the last row scanning signal of the former two adjacent touch electrode blocks and the first row scanning signal of the latter. For the convenience of description, a plurality of control circuit modules receiving the same tail scanning signal and the same first scanning signal are referred to as the same level control circuit module. Specifically, an x-1 level control circuit module is connected to an x-1 level touch electrode block and an x-th touch electrode block, and the two touch electrode blocks are arranged in parallel in a column direction. . The n-1th scan line inputs the n-1th scan signal Gn-1 to the last row of pixel units of the x-1th touch electrode, and the nth scan line inputs the nth scan signal Gn to the xth touch The first row of pixel units of the control electrode, the n-1th scanning line and the nth scanning line input the n-1th scanning signal Gn-1 and the nth scanning signal Gn to the x-1th control circuit, respectively. Module. N> n> 1, and n and N are positive integers.

The control circuit module is turned off when the last scanning signal and the first scanning signal are both low level, and controls the adjacent two touch electrode blocks to be electrically disconnected; the last scanning signal or the first scanning signal is high voltage. Open normally to control the electrical connection of two adjacent touch electrode blocks.

FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in FIG. 4, the first touch electrode block 102 and the second touch electrode block 103 adjacent in the column direction are taken as an example, where the first touch electrode block 102 is two adjacent touch electrodes. The previous one of the electrode blocks, the second touch electrode block 103 is the last of the two adjacent touch electrode blocks, and the touch electrode disconnection 104 is located at the first touch electrode block 102 and the first Between two touch electrode blocks 103. The first touch electrode block 102 and the second touch electrode block 103 each correspond to a plurality of pixel units 101 arranged in a matrix. The n-1th scan line inputs the n-1th scan signal Gn-1 to the last row of pixel units 101 of the first touch electrode block 102, that is, Gn-1 is the two adjacent touch electrode blocks. The last scan signal of the previous row; the n-th scan line inputs the n-th scan signal Gn to the first row of pixel units 101 of the second touch electrode block 103, that is, Gn is two adjacent touch electrode blocks. The first scanning signal of the latter.

The n-1th scanning line and the nth scanning line input the n-1th scanning signal Gn-1 and the nth scanning signal Gn to the control circuit module 105, respectively. The first end of the control circuit module 105 is connected to the first touch electrode block 102 through a first touch electrode connection line 106, and the second end of the control circuit module 105 is connected to the second touch electrode through a second touch electrode connection line 107. Control electrode block 103.

When both the (n-1) th scanning line and the (n) th scanning line are in a low-level (working) state, the control circuit module 105 is in an off state, and the first touch electrode connection line 106 and the second touch electrode connection line 107 is electrically disconnected, that is, the first touch electrode block 102 and the second touch electrode block 103 are electrically disconnected. When the n-1th scan line or the nth scan line is in a high-level (working) state, the control circuit module 105 is in a conducting state, and the first touch electrode connection line 106 and the second touch electrode connection line 107 The electrical connection is between the first touch electrode block 102 and the second touch electrode block 103.

The first touch electrode block 102 and the second touch electrode block 103 are electrically connected only when the scanning lines affecting the horizontal stripes near the touch electrode interface are operated, and the touch electrodes formed by the electrical connection are twice as large. There is a pull-up of the potential of the n-1th scan line to the touch electrode in the block to offset the pull-down of the potential of the n-th scan line to the touch electrode, and an increase of the potential of the n-th scan line to the touch electrode. The pull-off of the potential of the n-1 scanning line to the potential of the touch electrode makes the potential of the touch electrode near the boundary of the touch electrode normal, thereby solving the problem of horizontal stripes near the boundary of the touch electrode.

In a preferred embodiment, when the time setting of the normal display phase and the touch phase is performed in advance, the time when the x-1th touch electrode and the xth touch electrode are input with the touch sensing signal can be avoided. The time when the x-1 level control circuit module short-circuits the adjacent two-stage touch electrode blocks, that is, the time when the touch sensing signal is input to the x-1 touch electrode and the x-th touch electrode There is no overlap between the time when the n-1 scanning signal and the n-th scanning signal are at a high level.

FIG. 5 is a schematic circuit diagram of a control circuit module according to an embodiment of the present invention. As shown in FIG. 5, taking an x-1 level control circuit module as an example, the first end is electrically connected to the x-1 level touch electrode block, and the second end is electrically connected to the x level touch electrode block. . The x-1 level touch electrode signal Sx-1 represents the potential of the x-1 level touch electrode block, and the x level touch electrode signal Sx represents the potential of the x-1 level touch electrode block; the nth The -1 level scan signal Gn-1 is input to the last row of pixel units 101 in the x-1 level touch electrode block, and Gn-2, Gn-3, and Gn-4 are sequentially input to the pixels in each row above the last row of pixel units 101. Unit 101; the n-th scanning signal Gn is input to the first row of pixel units 101 in the x-th touch electrode block, and Gn + 1, Gn + 2, Gn + 3 are sequentially input to the rows below the first row of pixel units 101 Pixel unit 101.

As shown in FIG. 5, the control circuit module includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a first resistor R1, and a second resistor R2. The on-resistances of the first transistor T1, the second transistor T2, and the third transistor T3 are much smaller than the first resistance R1 and the second resistance R2. The first transistor T1, the second transistor T2, the third transistor T3, and the fourth transistor T4 are all N-type transistors, which are suitable for common all-N-type transistor processes.

The control terminal of the first transistor T1 inputs the n-1th level scanning signal Gn-1, that is, the last scanning signal of the previous one of the two adjacent touch electrode blocks. The control terminal of the second transistor T2 inputs the n-th scanning signal Gn, that is, the first scanning signal of the latter of the two adjacent touch electrode blocks. The first path terminal of the first transistor T1 and the first path terminal of the second transistor T2 are both connected to the first node netA. The second path terminal of the first transistor T1 and the second path terminal of the second transistor T2 are shorted and input to the constant. Drive low VSS.

The control terminal of the third transistor T3 is connected to the first node netA, the first path terminal is connected to the second node netB, and the second path terminal inputs the constant voltage low level VSS.

The control terminal of the fourth transistor T4 is connected to the second node netB, and the first path terminal inputs the x-1 level touch electrode signal Sx-1, and is electrically connected to the former of two adjacent touch electrode blocks, that is, The x-1th level touch electrode signal Sx-1 is input to the first path end of the fourth transistor T4 through the touch electrode connection line, and the xth level touch electrode signal Sx is input to the second path end, and is electrically connected to the adjacent two The latter of the touch electrode blocks, that is, the x-th level touch electrode signal Sx is input to the second path end of the fourth transistor T4 through the touch electrode connection line.

The first terminal of the first resistor R1 and the first terminal of the second resistor R2 both input a power supply voltage VDD. The power supply voltage VDD is a constant-voltage high level when the display panel works normally, and the second terminal of the first resistor R1 is connected to the first The node netA, the second end of the second resistor R2 is connected to the second node netB.

The n-2th to n + 1th stage scanning signals, the voltage waveforms of the first node netA and the second node netB are shown in FIG. 6. When the n-1th scan signal Gn-1 or the nth scan signal Gn is high, the first transistor T1 or the second transistor T2 is turned on, the first node netA is low, and the third transistor T3 is turned off The second node netB is at a high level, so that the fourth transistor T4 is turned on to electrically connect the x-1th touch electrode block and the xth touch electrode block. When both the n-1th scan signal Gn-1 and the nth scan signal Gn are low, the fourth transistor T4 is turned off, and the x-1th touch electrode block and the xth touch electrode are turned off. The block is electrically disconnected.

FIG. 7 is a schematic circuit diagram of a control circuit module in another embodiment of the present invention. As shown in FIG. 7, as another embodiment, the control circuit module includes a first transistor T1, a second transistor T2, a fifth transistor T5, and a first resistor R1. The on-resistances of the first transistor T1 and the second transistor T2 are much smaller than the first resistance R1. The first transistor T1, the second transistor T2 are N-type transistors, and the fifth transistor T5 is a P-type transistor, which is suitable for the NP hybrid transistor process.

In this embodiment, the control terminal of the first transistor T1 inputs the n-1 level scanning signal Gn-1, that is, the last scanning signal of the previous one of the two adjacent touch electrode blocks, and the control terminal of the second transistor T2 The n-th scanning signal Gn is input, that is, the first scanning signal of the latter of the two adjacent touch electrode blocks. The first path terminal of the first transistor T1 and the first path terminal of the second transistor T2 are both connected to the first node netA. The second path terminal of the first transistor T1 and the second path terminal of the second transistor T2 are shorted and input to the constant. Drive low VSS.

The control terminal of the fifth transistor T5 is connected to the first node netA, and the first path terminal inputs the x-1 level touch electrode signal Sx-1, and is electrically connected to the previous one of two adjacent touch electrode blocks, that is, The x-1th level touch electrode signal Sx-1 is input to the first path end of the fifth transistor T5 through the touch electrode connection line, and the xth level touch electrode signal Sx is input to the second path end to electrically connect the adjacent two The latter one of the touch electrode blocks, that is, the x-th touch electrode signal Sx is input to the second path end of the fifth transistor T5 through the touch electrode connection line.

A first terminal of the first resistor R1 is input with a power supply voltage VDD, and the power supply voltage VDD is a constant voltage high level when the display panel is normally operated, and a second terminal of the first resistor R1 is connected to the first node netA.

The use of a P-type thin film transistor in this embodiment simplifies the circuit structure of the control circuit module shown in FIG. 5 and can also perform the same function.

In other embodiments, the functions of the first resistor R1 or the second resistor R2 can also be realized by replacing with the transistors M1 and M2. In the manufacturing process of the display panel, the transistor-type device has a smaller layout area. And an easier process.

An embodiment of the present invention further provides a driving method for a display panel, which is applicable to the above display panel. The driving method includes:

When the last scanning signal and the first scanning signal are both low level, driving the corresponding control circuit module 105 to turn off to control the adjacent two touch electrode blocks to be electrically disconnected;

When the last row scanning signal or the first row scanning signal is at a high level, driving the corresponding control circuit module 105 to open to control the adjacent two touch electrode blocks to be electrically connected;

Wherein, the time when the touch sensing signal is input to the two adjacent touch electrode blocks does not overlap with the time when the tail scan signal is at a high level and the time when the first row scan signal is at a high level. .

Without changing the basic structure of the pixel unit of the display panel of the embodiment of the present invention, when the scan line near the touch electrode disconnection is at a high level, the upper and lower sides of the touch electrode disconnection are controlled by the control circuit module. The touch electrode blocks are shorted to solve the problem of horizontal stripes near the touch electrode interface, and are widely applicable to a variety of pixel structures and panel structures. Further, the time when a touch sensing signal is input to two adjacent touch electrode blocks does not overlap with the time when the scan line adjacent to the touch electrode disconnection is at a high level, so as to avoid affecting the touch effect.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the principle of the present invention, multiple improvements and retouches can be made. It should also be regarded as the protection scope of the present invention.

Claims

A display panel includes:

A touch electrode, which is divided into a plurality of touch electrode blocks, each touch electrode block corresponding to a plurality of pixel units;

A plurality of control circuit modules, each control circuit module is connected to two adjacent touch electrode blocks in a column direction, and is used for receiving a tail scan signal of a previous one of the two adjacent touch electrode blocks and a rear A first line scan signal;

Wherein, the control circuit module is turned off when the last scanning signal and the first scanning signal are both low level, and controls the adjacent two touch electrode blocks to be electrically disconnected; Or, it is turned on when the first scanning signal is at a high level, and controls the two adjacent touch electrode blocks to be electrically connected.
The display panel according to claim 1, wherein the control circuit module includes a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistor, and a second resistor;

The control terminal of the first transistor inputs the tail scan signal, the control terminal of the second transistor inputs the first scan signal, and both the first path terminal of the first transistor and the first path terminal of the second transistor are connected to the first node, The second path terminal of the first transistor and the second path terminal of the second transistor both input a constant voltage low level;

The control terminal of the third transistor is connected to the first node, the first path terminal of the third transistor is connected to the second node, and the second path terminal of the third transistor inputs a constant voltage low level;

The control terminal of the fourth transistor is connected to the second node, the first path terminal of the fourth transistor is electrically connected to the previous one of the two adjacent touch electrode blocks, and the second path terminal of the fourth transistor is electrically connected. Sexually connect the latter of the two adjacent touch electrode blocks;

The first terminal of the first resistor and the first terminal of the second resistor both input the power supply voltage, the second terminal of the first resistor is connected to the first node, and the second terminal of the second resistor is connected to the second node.
The display panel according to claim 2, wherein the first transistor, the second transistor, the third transistor, and the fourth transistor include N-type transistors.
The display panel according to claim 2, wherein the resistance values of the on resistances of the first transistor, the second transistor, and the third transistor are much smaller than the resistance values of the first resistance and the second resistance.
The display panel according to claim 1, wherein the control circuit module includes a first transistor, a second transistor, a fifth transistor, and a first resistor;

The control terminal of the first transistor inputs the tail scan signal, the control terminal of the second transistor inputs the first scan signal, and both the first path terminal of the first transistor and the first path terminal of the second transistor are connected to the first node, The second path terminal of the first transistor and the second path terminal of the second transistor both input a constant voltage low level;

A control terminal of the fifth transistor is connected to the first node, a first path terminal of the fifth transistor is electrically connected to a previous one of the two adjacent touch electrode blocks, and a second path terminal of the fifth transistor is electrically connected. Sexually connect the latter of the two adjacent touch electrode blocks;

A first terminal of the first resistor is input with a power supply voltage, and a second terminal of the first resistor is connected to the first node.
The display panel according to claim 5, wherein the first transistor and the second transistor include an N-type transistor, and the fifth transistor includes a P-type transistor.
The display panel according to claim 5, wherein resistance values of on-resistances of the first transistor and the second transistor are much smaller than resistance values of the first resistor.
The display panel according to claim 1, wherein a common electrode signal is input as a common electrode when the touch electrode block is in a display stage;

When the touch electrode block is in a touch phase, a touch sensing signal is input, an external electric field change is received, a detection signal is generated, and the detection signal is transmitted to the IC.
The display panel according to claim 8, wherein a time when a touch sensing signal is input to the two adjacent touch electrode blocks, a time when the last scanning signal is at a high level, and the first time There is no overlap in the time when the line scan signal is at a high level.
A method for driving a display panel according to any one of claims 1-9, comprising:

When the last row scanning signal and the first row scanning signal are both low level, driving the corresponding control circuit module to turn off to control the adjacent two touch electrode blocks to be electrically disconnected;

When the last row scanning signal or the first row scanning signal is at a high level, driving the corresponding control circuit module to open to control the adjacent two touch electrode blocks to be electrically connected;

Wherein, the time when the touch sensing signals are input to the two adjacent touch electrode blocks does not overlap with the time when the last scanning signal is at a high level and the time when the first scanning signal is at a high level.