TWI603247B - In cell display and touch control circuit and driving method for in cell touch and display panel - Google Patents

Description

Display touch circuit and driving method of in-cell touch display panel

The present invention relates to a technology for embedding a touch panel circuit. Further, the present invention relates to a display touch circuit and a driving method of an in-cell touch display panel.

FIG. 1 is a circuit diagram of a common touch/touch electrode connection display touch integrated control circuit in the in-cell display touch panel of the prior art. Referring to FIG. 1 , in the prior art, the in-cell display touch panel is divided into multiple joints/touches by using a single electrode that is originally used to display a common voltage plane in order to achieve both display and touch functions. Control electrode 102. Therefore, during the non-display period, the display touch integrated control circuit 101 performs touch detection on the common touch/touch electrodes 102 to achieve the effect of detecting finger touch.

However, the length of the common/touch electrode connection line 103 connecting the touch display integrated control circuit 101 to each of the common/touch electrodes 102 is not the same. The longer common/touch electrode connection line 103 has a higher impedance, and the shorter common/touch electrode connection line 103 has Lower impedance. In the general display screen, the electric field effect coupled by different source lines, because the source line display has both positive and negative voltage states, so that the positive and negative coupling effects cancel each other out, and the common/touch electrode does not have too much voltage. Deviation. However, in a particular picture, for example, when different source lines are in the same positive or negative voltage display state, the coupled electric field effect produces a positive voltage or negative voltage overload coupling, such as two inverted pixels thousand birds (chidori) -pattern pixel array) If the R&C of the common/touch electrode 102 is large, the display common voltage VCOM on the common/touch electrode 102 is disturbed too much, and the common voltage VCOM level is displayed. Abnormal, resulting in a display of unevenness (Mura), as shown in the attached picture.

An object of the present invention is to provide a driving method for displaying a touch control circuit and an in-cell touch display panel, which can display the common connection voltage by inverting compensation, and eliminate the coupling/contact of the source line when the screen is reloaded. The asymmetric electric field effect of the control electrode. Therefore, the present invention can compensate for the display panel display unevenness (Mura).

Another object of the present invention is to provide a display touch circuit and a driving method of the in-cell touch display panel, wherein another common/touch electrode connection line is provided for each of the common/touch electrodes. During the display period, the common connection voltage can be provided by the common connection/touch electrode connection line, thereby greatly reducing the recovery time of the common/touch electrode after being coupled by the source line, thereby eliminating the display panel display. Uneven (Mura) situation.

In view of the above, the present invention provides a display touch circuit including an in-cell display touch panel, a touch control circuit, and an inversion compensation circuit. The in-cell display touch panel includes a first common/touch electrode, a second common/touch electrode, a first common/touch electrode connection line, and a second common/touch electrode connection. line. The first common/touch electrode connection line includes a first end and a second end, wherein the first end of the first common/touch electrode connection line is electrically connected to the first common/touch electrode. The second common/touch electrode connection line includes a first end and a second end, wherein the first end of the second common/touch electrode connection line is electrically connected to the second common/touch electrode. The touch control circuit includes a first control end and a second control end, wherein the first control end of the touch control circuit is coupled to the second end of the first common touch/touch electrode connection line, and the touch control circuit is The second control end is coupled to the second end of the second common/touch electrode connection line. The inverting compensation circuit includes an input end and an output end for outputting and synchronizing the display common voltage in accordance with a floating of the display common voltage, wherein the input end of the inverting compensation circuit receives the display The voltage is connected in common, and the output of the inverting compensation circuit is outputted to compensate for the common voltage.

In the above embodiment, the frame control period is divided into a plurality of display sub-periods and a plurality of touch sub-periods. During the touch period, the touch control circuit provides the first control end and the second control end respectively. The control signal is used for touch detection on the first common/touch electrode and the second common/touch electrode. Touch control circuit during the above display period A first control terminal and a second control terminal are respectively provided to display a common voltage. During the display period, the detection of the common/touch electrode generates a positive voltage or a negative voltage coupling. If the screen is a heavy load screen, the touch control circuit controls the inversion compensation circuit to provide a compensation display common voltage to the first total. Connect/touch electrodes and second common/touch electrodes.

The present invention further provides a display touch circuit including an in-cell display touch panel, a display common voltage node, and a touch control circuit. The in-cell display touch panel includes a first common/touch electrode, a second common/touch electrode, a first common/touch electrode connection line, and a second common/touch electrode connection. a first common/touch electrode sub-connection line, a second common/tact electrode sub-connection line, and a first thin film transistor and a second thin film transistor. The first common/touch electrode connection line includes a first end and a second end, wherein the first end of the first common/touch electrode connection line is electrically connected to the first common/touch electrode. The second common/touch electrode connection line includes a first end and a second end, wherein the first end of the second common/touch electrode connection line is electrically connected to the second common/touch electrode.

The first common connection/touch electrode sub-connection line includes a first end and a second end, wherein the first end of the first common/touch electrode sub-connection line is electrically connected to the first common connection/touch electrode. The second common/touch electrode sub-connecting line includes a first end and a second end, wherein the first end of the second common/touch electrode sub-connection is electrically connected to the second common/touch electrode. The first source drain of the first thin film transistor is coupled to the second end of the first common/touch electrode sub-connection line. First of the second thin film transistor The source drain is coupled to the second end of the second common/touch electrode sub-connection. The touch control circuit includes a first control end and a second control end, wherein the first control end of the touch control circuit is coupled to the second end of the first common/touch electrode connection line, and the touch control circuit The second control end is coupled to the second end of the second common/touch electrode connection line, wherein the touch control circuit controls whether the first thin film transistor and the second thin film transistor are turned on. The display common voltage node is coupled to the second source drain of the first thin film transistor and the second source drain of the second thin film transistor for providing a display common voltage.

In the above embodiment, one frame period is divided into a plurality of display sub-periods and a plurality of touch sub-periods. During the touch control, the touch control circuit respectively provides the first control end and the second control end touch control signal to touch the first common touch/touch electrode and the second common touch/touch electrode Control detection. During the display period, the touch control circuit respectively provides the first control terminal and the second control terminal to display the common voltage, and the touch control circuit controls the first thin film transistor and the second thin film transistor to be turned on to display the common voltage. Introducing the first common/touch electrode from the first end of the first common/touch electrode sub-connection line, and introducing the display common voltage into the first end of the second common/touch electrode sub-connection line The second contact/touch electrode is used to reduce the asymmetric electric field effect of the first and second common/touch electrodes.

The present invention further provides a driving method for an in-cell touch display panel, wherein the in-cell touch display panel includes at least one first common/touch electrode and a second common/touch electrode; a first common/touch electrode connection line and a second common connection/touch The first end of the first common/touch electrode connection line is coupled to the first common connection/touch electrode, and the first end of the second common/touch electrode connection line is coupled to the first end Connecting the second common touch/touch electrode; wherein the driving method of the in-cell touch display panel comprises the steps of: dividing a frame period into at least one display sub-period and at least one touch sub-period; During the touch period, the touch sensing signal is respectively provided at the first end of the first common/touch electrode connection line and the first end of the second common/touch electrode connection line for touch control Sensing; during the display period, and when the screen is reloaded, a display common voltage is compensated by an inverting amplification, and a compensation display common voltage is output, and then the compensation display common voltage is provided to The first common/touch electrode and the second common/touch electrode, thereby reducing the asymmetric electric field effect of the first and second common/touch electrodes.

The spirit of the present invention is to make the display common voltage reversely compensated during heavy load, and to provide the compensated display common voltage to the common/touch electrode during display, thereby offsetting The electric field effect coupled by the source line of the reloaded picture. Therefore, the present invention can effectively reduce the display unevenness (Mura) of the touch display panel.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

101‧‧‧Display touch integrated control circuit

102‧‧‧Common/touch electrode

VCOM‧‧‧ shows common voltage

20‧‧‧Inline display touch panel

21‧‧‧Display/Touch Control Circuit

22‧‧‧Inverting compensation circuit

201‧‧‧Common/Touch Electrode

202‧‧‧Common/Touch Electrode Cable

301‧‧‧ Under the condition of heavy load, the waveform of the source line

302‧‧‧In the case of heavy load, the waveform of the common voltage is displayed

VCMP‧‧‧compensation shows common voltage

401‧‧‧ source line voltage waveform

402‧‧‧ shows the floating waveform of the common voltage VCOM

403‧‧‧Compensation of the entire reverse compensation shows the waveform of the common voltage VCMP

404‧‧‧Local offset compensation compensation shows the waveform of the common voltage VCMP

501‧‧‧Common/Touch Electrode Sub Cable

502‧‧‧ Corresponding thin film transistor

60‧‧‧Inline display touch panel

61‧‧‧Display/Touch Control Circuit

62‧‧‧Display common voltage node

601‧‧‧Common/touch electrode

602‧‧‧Common/Touch Electrode Cable

603‧‧‧Common/touch electrode sub-connector

604‧‧‧film transistor

S701~S710‧‧‧ steps of the driving method of the in-cell touch display panel according to a preferred embodiment of the present invention

S801~S803‧‧‧ respective substeps of step S707 of the driving method of the in-cell touch display panel according to a preferred embodiment of the present invention

Figure 1 shows the prior art in-line display touch The common/touch electrode connection in the control panel displays the circuit diagram of the touch integrated control circuit.

FIG. 2 is a circuit block diagram showing a touch control circuit according to a preferred embodiment of the present invention.

FIG. 3 is a waveform diagram showing a source line of a touch circuit during heavy load and a waveform diagram showing a common voltage according to a preferred embodiment of the present invention.

FIG. 4 is a waveform diagram showing the compensation display common voltage VCMP according to a preferred embodiment of the present invention.

FIG. 5 is a circuit diagram showing a touch control circuit according to a preferred embodiment of the present invention.

FIG. 6 is a circuit diagram showing a touch control circuit according to a preferred embodiment of the present invention.

FIG. 7 is a flow chart showing a driving method of an in-cell touch display panel according to a preferred embodiment of the present invention.

FIG. 8 is a flow chart showing the sub-steps of step S707 of the driving method of the in-cell touch display panel according to a preferred embodiment of the present invention.

FIG. 2 is a circuit block diagram showing a touch control circuit according to a preferred embodiment of the present invention. Referring to FIG. 2 , the touch control circuit includes an in-cell display touch panel 20 , a display/touch control circuit 21 , and an inversion compensation circuit 22 . The in-cell display touch panel 20 includes A plurality of common/touch electrodes 201 and corresponding plurality of common/touch electrode connection lines 202 (only nine common/touch electrodes and nine common/touch electrode connection lines are used in this embodiment) An exemplary example). The common/touch electrode connection line 202 includes a first end and a second end. The first end of the common/touch electrode connection line 202 is electrically connected to the common/touch electrode 201. The second end of the common/touch electrode connection line 202 is coupled to the display/touch control circuit 21. The display/touch control circuit 21 includes a plurality of control ends coupled to the second ends of the common/touch electrode connection lines 202. The input end of the inverting compensation circuit 22 receives a display common voltage VCOM, and according to a floating display common voltage VCOM, the output and the display common voltage are inverted to compensate the display common voltage.

FIG. 3 is a waveform diagram showing a source line of a touch circuit during heavy load and a waveform diagram showing a common voltage according to a preferred embodiment of the present invention. Referring to FIG. 3, waveform 301 shows the waveform of the source line in the case of heavy load, and waveform 302 shows the waveform of the common voltage in the case of heavy load. In the case of heavy load, for example, a picture of two inverted chidori-pattern pixel array images interleaved, the signal on the source line continues to be converted from the highest voltage to the lowest voltage, and then the lowest voltage is converted to the highest voltage. Voltage. The capacitive coupling effect between the adjacent common/touch electrode connection line 202 and the common/touch electrode 201 and the source line causes the signal of the source to affect the display common voltage VCOM, such as the waveform 301 and the waveform. As shown at 302, the common voltage is shown to float with the voltage on the source line.

Therefore, in this embodiment, the above display is connected to the power The voltage VCOM is input to the inverting compensation circuit 22, and the inverting compensation circuit 22 outputs a compensation display common voltage VCMP which is inverted from the display common voltage VCOM according to the floating of the common voltage VCOM. Thereafter, the compensation display common voltage VCMP is introduced into the common/touch electrode 201 through the display/touch control circuit 21.

FIG. 4 is a waveform diagram showing the compensation display common voltage VCMP according to a preferred embodiment of the present invention. Please refer to FIG. 4, 401 represents the voltage waveform of the source line; 402 represents the floating waveform showing the common voltage VCOM; 403 represents the waveform of the compensation of the entire reverse compensation compensation display VCMP; 404 represents the local reverse compensation The compensation shows the waveform of the common voltage VCMP. In this embodiment, the display common voltage VCOM is inversely compensated for the entire period according to the voltage variation of the source line, whereby the compensation display common voltage VCMP can compensate for the effect pulled by the coupling voltage of the source line. In addition, in addition to the entire segment of compensation, local inversion compensation such as waveform 404 can also be employed.

FIG. 5 is a circuit diagram showing a touch control circuit according to a preferred embodiment of the present invention. Referring to FIG. 5 , in the embodiment, the in-cell display touch panel 20 additionally adds a plurality of common/touch electrode sub-connection lines 501 and corresponding thin film transistors 502. In this embodiment, the common/touch electrode sub-connection line 501 and the common-contact/touch electrode connection line 202 are not mutually staggered, and only the terminals are electrically connected to the common-contact/touch electrode 201. Therefore, the wiring manner of the common/touch electrode sub-connection line 501 may be such that the common/touch electrode connection lines 202 are parallel to each other. In this embodiment, when the common/touch electrode sub-connection line 501 is wired, Avoiding the wiring of the common/touch electrode connection lines 202 on the same line can avoid the influence of the signals coupled by the same source line. Moreover, in order to increase the compensation effect, when the common/touch electrode sub-connection line 501 is wired, the number of lines used on the panel may be greater than the number of lines of the common/touch electrode connection line 202. In this embodiment, since the single common/touch electrode 201 and the at least two connecting lines, the common touch/touch electrode connection line 201 and the common/touch electrode sub-connection line 501, the process can also be reduced. The risk of disconnection causes the signal to fail to pass, and it also reduces the impedance. In addition, the common/touch electrode adjacent to the thin film transistor 502 has a short common/touch electrode sub-connection line 501. In other words, the common/touch electrode connection line 201 and the common/touch electrode sub-connection line 501 connected to the single common/touch electrode 201 may be unequal length.

When the screen is reloaded, the inverting compensation circuit 22 reversely compensates the display common voltage VCOM according to the voltage variation of the source line to output a compensation display common voltage VCMP. At this time, the display/touch control circuit 21 controls The thin film transistor 502 is turned on. Since one end of the thin film transistor 502 receives the compensation display common voltage VCMP, the other end is coupled to the common connection/touch electrode sub-connection line 501, so the compensation display common voltage VCMP will pass through the common connection/touch electrode sub-connection line 501. The common/touch electrode 201 is introduced. Thereby, the effect pulled by the coupling voltage of the source line can be compensated for. Therefore, it is possible to effectively reduce and eliminate the display unevenness (Mura) of the touch display panel.

FIG. 6 is a circuit diagram showing a touch control circuit according to a preferred embodiment of the present invention. Please refer to Figure 6, which shows the touch circuit package. An in-cell display touch panel 60, a display/touch control circuit 61, and a display common voltage node 62 are included. The in-cell display touch panel 20 includes a plurality of common/touch electrodes 601, corresponding plurality of common/touch electrode connection lines 602, corresponding plurality of common/touch electrode sub-connection lines 603, and a plurality of Thin film transistor 604.

Similar to FIG. 2, the common/touch electrode connection line 602 includes a first end and a second end. The first end of the common/touch electrode connection line 602 is electrically connected to the common/touch electrode 601. The second end of the common/touch electrode connection line 602 is coupled to the display/touch control circuit 61. The display/touch control circuit 61 includes a plurality of control ends respectively coupled to the second ends of the common/touch electrode connection lines 602. The common/touch electrode sub-connection 603 includes a first end and a second end. The first end of the common/touch electrode sub-connection 603 is electrically connected to the corresponding common/touch electrode 601. Since this part is similar to the design of FIG. 2, it has similar advantages and features as above, and will not be described again here.

The second source of the thin film transistor 604 is electrically connected to the second end of the corresponding common/touch electrode sub-connection 603. The first source of the thin film transistor 604 is electrically connected to the common voltage node 62. The gate of the thin film transistor 604 is coupled to the display/touch control circuit 61. In this embodiment, the display common voltage node 62 is, for example, a larger display common voltage level, which indicates that the common voltage level is a voltage level that is not susceptible to external influence. Typical implementations include a voltage source that provides a larger current or a larger area conductor.

In this embodiment, a frame period is divided into display During the display period and during the touch period. During the touch period, the display/touch control circuit 61 provides touch control signals to each of the control terminals to perform touch detection on each of the common/touch electrodes 601. During the display period, the display/touch control circuit 61 outputs a display common voltage VCOM at its control terminal, and the display/touch control circuit 61 controls the thin film transistor 604 to be turned on. At this time, the display common voltage VCOM is introduced into the common/touch electrode 601 from the first end of the common/touch electrode sub-connection line 603.

Since the display common voltage VCOM of the common voltage node 62 is displayed as a voltage level that is not easily externally affected, the externally supplied display common voltage VCOM is hardly affected by the voltage variation on the source line. . Moreover, since the display common voltage has two paths for introducing the common connection/touch electrode 601, the parallel effect reduces the RC load effect of the common connection/touch electrode 601 as a whole, and therefore, the touch display panel displays unevenness (Mura The situation has been improved.

Similarly, the circuit embodiment of FIG. 6 can also add the above-described inverting compensation circuit 22. The circuit diagram after adding the inverting compensation circuit 22 is as shown in FIG. 5, and therefore will not be described again. In addition, although the above embodiments use a plurality of common/touch electrodes, in general, the more the common/touch electrodes are, the higher the resolution of the touch is. However, the present invention does not exclude special applications. For example, the well-known game console PS Vita uses only two capacitive sensing touch electrodes on the back of the machine. The number of common/touch electrodes is based on the application. The invention can be implemented by only two or more common/touch electrodes, and the invention is not limited thereto.

Figure 7 is a diagram showing a preferred embodiment of the present invention. A flow chart of a driving method of the embedded touch display panel. Referring to FIG. 7 , in this embodiment, the in-cell touch display panel includes at least one first common touch/touch electrode and a second common touch/touch electrode, and the first common touch/touch The second common/touch electrode connection line is electrically connected to the first common connection/touch electrode connection line, and the second common connection/touch electrode connection line is electrically connected to the second common connection/touch electrode, as in the embodiment of FIG. 2 above. The first end of each of the common/touch electrode connection lines 202 is coupled to the display/touch control circuit 21, and the second end of each of the common/touch electrode connection lines 202 is coupled to the corresponding touch/contact. Control electrode 201. The driving method of the in-cell touch display panel includes the following steps:

Step S701: Start.

Step S702: dividing a frame period into at least one display sub-period and at least one touch sub-period.

Step S703: It is judged during the display of the sub-period or during the touch period. If it is during the touch period, step S704 is performed. If the sub-period is displayed, step S705 is performed.

Step S704: During the touch period, the touch sensing signal is respectively provided at the first end of the first common/touch electrode connection line and the first end of the second common/touch electrode connection line. For touch sensing.

Step S705: determining whether there is a coupling bias, for example, when the screen is reloaded. If the determination is yes, if there is a coupling bias, step S706 is performed. If the determination is no, there is no coupling bias. In this case, the common contact/touch electrode is the same as the set target voltage, and then step S708 is performed.

Step S706: During the display period, and during the reloading of the screen, a display common voltage is compensated by an inverting amplification, and then a compensation display common voltage is output.

Step S707: The compensation display common voltage is supplied to the first common/touch electrode and the second common/touch electrode, thereby reducing display display panel display unevenness (Mura).

Step S708: providing a display common voltage to the first common/touch electrode and the second common/touch electrode.

FIG. 8 is a flow chart showing the sub-steps of step S707 of the driving method of the in-cell touch display panel according to a preferred embodiment of the present invention. Please refer to FIG. 8. This step S707 includes the following steps:

Step S801: providing a first common/touch electrode sub-connection line and a second common/touch electrode sub-connection line, wherein the first end of the first common-contact/touch electrode sub-connection line is coupled to the first end The first end of the second common/touch electrode sub-connection is coupled to the second common/touch electrode. The common/touch electrode sub-connection line 501 is shown in FIG.

Step S802: providing a first switching element and a second switching element, wherein the first end of the first switching element is coupled to the second end of the first common/touch electrode sub-connection line, and the second switching element is One end is coupled to the second end of the second common/touch electrode sub-connection. As shown in the thin film transistor 502 of FIG. The first source of the thin film transistor 502 is coupled to the second end of the contact control common/contact electrode sub-connection 501, and the second source of the thin film transistor 502 is coupled to the output of the inverting compensation circuit 22.

Step S803: During the display of the display, and when the screen is reloaded, the compensation display common voltage is supplied to the first switching element and the second end of the second switching element, and the first switching element and the second switching element are controlled. Turning on, the compensation display common voltage is introduced into the first common/touch electrode and the second common/touch electrode. As shown in FIG. 5, the display/touch control circuit 21 controls the thin film transistor 502 to be turned on, so that the compensation display common voltage VCMP is introduced into the common/touch electrode. Thereby, the asymmetric electric field effect of the first and the second common/touch electrodes is reduced, and the display display panel is unevenly displayed (Mura).

In summary, the spirit of the present invention is to provide an inversion compensation for displaying a common voltage during heavy loading, and to provide a common connection voltage for the compensation to the common/touch electrode during display. Thereby, the electric field effect coupled by the source line of the reloaded picture is offset. Therefore, the present invention can effectively reduce the display unevenness (Mura) of the touch display panel.

The specific embodiments of the present invention are intended to be illustrative only and not to limit the invention to the above embodiments, without departing from the spirit of the invention and the following claims. The scope of the invention and the various changes made are within the scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

VCOM‧‧‧ shows common voltage

20‧‧‧Inline display touch panel

21‧‧‧Display/Touch Control Circuit

22‧‧‧Inverting compensation circuit

201‧‧‧Common/Touch Electrode

202‧‧‧Common/touch electrode connection line 202

Claims (10)

A display touch circuit includes: an in-cell display touch panel comprising: a first common/touch electrode; a second common/touch electrode; and a first common/touch electrode connection line a first end and a second end, wherein the first end of the first common/touch electrode connection line is electrically connected to the first common touch/touch electrode; and the second common touch/touch The electrode connection line includes a first end and a second end, wherein the first end of the second common/touch electrode connection line is electrically connected to the second common/touch electrode; a touch control circuit a first control terminal and a second control terminal, wherein the first control end of the touch control circuit is coupled to the second end of the first common/touch electrode connection line, and the touch control circuit The second control end is coupled to the second end of the second common/touch electrode connection line; and an inverting compensation circuit includes an input end and an output end for outputting according to a floating display common voltage One of the inversions of the display voltage is complementary to the display of the common voltage, wherein the input of the inverting compensation circuit Receiving the display common voltage, the output end of the inverting compensation circuit outputs the compensation display common voltage; wherein, a frame period is divided into a plurality of display sub-periods and a plurality of touch sub-periods, wherein During the touch period, the touch control circuit respectively provides touch control signals of the first control end and the second control end to The first common control/touch electrode and the second common control/touch electrode perform touch detection, wherein the touch control circuit provides the first control end and the second control end respectively during the display period The common control voltage is displayed, wherein the touch control circuit controls the inversion compensation circuit to provide the first common/touch electrode and the second common touch/touch during the display period The first display and the touch electrode sub-connecting line include a first end and a second end, wherein the first The first end of the common touch/touch electrode sub-wire is electrically connected to the first common touch/touch electrode; and the second common touch/touch electrode sub-connection line includes a first end and a second end. The first end of the second common/touch electrode sub-wire is electrically connected to the second common/touch electrode; a first thin film transistor includes a gate, a first source drain, and a second source drain, wherein the first source drain of the first thin film transistor is coupled to the first The second source of the first thin film transistor is coupled to the output end of the inverting compensation circuit, and the gate of the first thin film transistor is coupled to the contact a control circuit; a second thin film transistor comprising a gate, a first source drain, and a second source drain, wherein the first source drain of the second thin film transistor is coupled to the second The second source of the second thin film transistor is coupled to the output end of the inverting compensation circuit, and the gate of the first thin film transistor is coupled to the touch Control circuit, The touch control circuit controls the first thin film transistor and the second thin film transistor to be turned on during the display period to provide the first common/touch electrode and the first Two common/touch electrodes This compensation shows the common voltage. The touch display circuit of the present invention, wherein the in-cell display touch panel comprises N common/touch electrodes and corresponding N common/touch electrode connection lines, and the The touch control circuit includes N control terminals respectively coupled to the second ends of the N common/touch electrode connection lines, wherein the touch control circuit controls the display unit during the display period The inverting compensation circuit provides the compensation display common voltage to N common/touch electrodes, where N is a natural number. The display touch panel of claim 2, wherein the in-cell display touch panel comprises: N common/touch electrode sub-connection lines, including a first end and a second end, The first end of the Nth common-contact/touch electrode sub-connection is electrically connected to the Nth common-contact/touch electrode; the N thin-film transistors include a gate and a first source drain And a second source drain, wherein the first source drain of the Kth thin film transistor is coupled to the second end of the Kth first common/touch electrode sub-connection line, the Kth thin film transistor The second source drain is coupled to the output end of the inverting compensation circuit, and the gate of the Kth thin film transistor is coupled to the touch control circuit; wherein, during the display period, and when the screen is a heavy load, the touch control The control circuit controls the N thin film transistors to be turned on to provide the compensation display common voltage to the N common/touch electrodes, wherein K is a natural number and K is less than or equal to N. A display touch circuit includes: an in-cell display touch panel comprising: a first common/touch electrode; a second common/touch electrode; and a first common/touch electrode connection line a first end and a second end, wherein the first end of the first common/touch electrode connection line is electrically connected to the first common touch/touch electrode; and the second common touch/touch The electrode connection line includes a first end and a second end, wherein the first end of the second common/touch electrode connection line is electrically connected to the second common/touch electrode; The touch-electrode sub-connecting wire includes a first end and a second end, wherein the first end of the first common-contact/touch electrode sub-connection line is electrically connected to the first common-contact/touch electrode; a second common/touch electrode sub-connecting wire includes a first end and a second end, wherein the first end of the second common/touch electrode sub-connecting wire is electrically connected to the second common a first thin film transistor comprising a gate, a first source drain and a second source drain, wherein the first thin film transistor A source coupled to the drain commonly connected to the first / second end of the electrode sub-touch connection lines; a second thin film transistor, comprising a gate, a first source drain And a second source drain, wherein the first source drain of the second thin film transistor is coupled to the second end of the second common/touch electrode sub-connection; a touch control circuit includes a first a control terminal and a second control terminal, wherein the first control end of the touch control circuit is coupled to the second end of the first common touch/touch electrode connection line, and the second control end of the touch control circuit a second end of the second common/touch electrode connection line, wherein the touch control circuit controls whether the first thin film transistor and the second thin film transistor are turned on; and a display common voltage node, The second source drain of the first thin film transistor and the second source drain of the second thin film transistor are coupled to provide a display common voltage, wherein a frame period is divided into a plurality of display sub- During the touch period, the touch control circuit provides the first control end and the second control end touch control signal respectively to the first common touch/touch Control electrode and the second common/touch electrode for touch detection The touch control circuit provides the first control terminal and the second control terminal to display the common voltage during the display period, and the touch control circuit controls the first thin film transistor and the second thin film. The transistor is turned on, so that the display common voltage is introduced into the first common/touch electrode from the first end of the first common/touch electrode sub-connecting line, and the display common voltage is connected by the second common The first end of the touch electrode sub-connection line is introduced into the second common connection/touch electrode, thereby reducing the first and the second common connection/ Asymmetric electric field effect of the touch electrode. The display touch circuit as described in claim 4, further comprising: an inverting compensation circuit comprising an input end and an output end for sharing the output with the display according to a floating display common voltage The compensation of the voltage inversion shows a common voltage, wherein the input end of the inverting compensation circuit receives the display common voltage, and the output of the inverting compensation circuit outputs the compensation display common voltage; wherein, a frame period is Dividing into a plurality of display sub-periods and a plurality of touch sub-periods, wherein the touch control circuit respectively provides the first control end and the second control end touch control signal to The first common/touch electrode and the second common/touch electrode perform touch detection, wherein the touch control circuit controls the first thin film transistor and the second thin film transistor during the display period Turning on, and the touch control circuit controls the inversion compensation circuit to provide the first thin film transistor and the second source drain of the second thin film transistor to compensate for the common voltage. The display touch panel includes the N common/touch electrodes and the corresponding N common/touch electrode connection lines, and the display touch panel includes: The touch control circuit includes N control terminals coupled to N common/touch electrode connection lines respectively. The second end of the touch panel includes: N common/touch electrode sub-connecting lines, including a first end and a second end, wherein the Nth common/touch electrode The first end of the sub-wire is electrically connected to the Nth common/touch electrode; the N thin film transistors include a gate, a first source drain and a second source drain, wherein the Kth The first source drain of the thin film transistor is coupled to the second end of the Kth first common/touch electrode sub-connecting line, and the second source drain of the Kth thin film transistor is coupled to the inverting compensation circuit And the gate of the Kth thin film transistor is coupled to the touch control circuit; wherein, during the display period and during the reloading of the screen, the touch control circuit controls the N thin film transistors to be turned on, The compensation is provided to display a common voltage to the N common/touch electrodes, wherein N and K are natural numbers and K is less than or equal to N. The display touch circuit of claim 4, wherein the first common/tact electrode sub-connection line and the first common/tact electrode connection line comprise at least two separate and parallel wires And the second common/touch electrode sub-connecting line and the second common/touch electrode connecting line comprise at least two separate and parallel wires. The display touch circuit of claim 7, wherein the number of lines of the first common-contact/touch electrode sub-connection line is greater than the number of lines of the first common-contact/touch electrode connection line, and The number of lines of the second common/touch electrode sub-connection line is greater than the number of lines of the second common/touch electrode connection line. The driving method of the in-cell touch display panel, wherein the in-cell touch display panel comprises at least a first common/touch electrode and a second common/touch electrode; and at least one first The first common terminal/touch electrode connection line is coupled to the first common connection/touch electrode, and the first common connection/touch electrode connection line is coupled to the first common/touch electrode. The first end of the second common touch/contact electrode is coupled to the second common touch/touch electrode; wherein the driving method comprises: dividing a frame period into at least one display period and at least one touch a sub-period; during the touch period, the first end of the first common/touch electrode connection line and the first end of the second common/touch electrode connection line respectively provide a sense of touch The test signal is used for touch sensing; during the display period, and when the screen is reloaded, a display common voltage is compensated by an inverting amplification, and a compensation display common voltage is output, and the compensation display is displayed. A common voltage is supplied to the first common/touch electrode and the second common connection/ Controlling the electrodes, thereby reducing the asymmetric electric field effect of the first and second common/touch electrodes, wherein the in-cell touch display panel comprises a first common/touch electrode sub-connection And a second common/touch electrode sub-connecting line, wherein the first end of the first common/touch electrode sub-connecting line is coupled to the first common/touch electrode, and the second common connection/ The first end of the touch electrode sub-connecting line is coupled to the second common/touch electrode; and a first switching element and a second switching element. The first end of the first switching element is coupled to the second end of the first common/touch electrode sub-connecting line, and the first end of the second switching element is coupled to the second common/touch electrode a second end of the sub-connection line, wherein the driving method comprises: providing the compensation display common voltage to the first switching element and the second switching element during the display of the display And controlling the first switching element and the second switching element to be turned on, so that the compensation display common voltage is introduced into the first common/touch electrode and the second common/touch electrode. The method of driving an in-cell touch display panel according to claim 9, wherein the first switching element and the second switching element are thin film transistors.