Driving circuit and method of display panel and display panel

Abstract

The invention discloses a driving circuit and method of a display panel and the display panel, and belongs to the technical field of display. The driving circuit of the display panel comprises an integrated driving module used for generating an initial touch signal and outputting a common electrode voltage; the first end of the first gating module is electrically connected with the first end of the integrated driving module, and the first gating module is used for providing a touch signal transmission channel or transmitting common electrode voltage; the first end of the touch module is electrically connected with the second end of the first gating module, and the touch module is used for superposing sensing measurement to an initial touch signal in response to a touch action; the first end of the second gating module is electrically connected with the second end of the integrated driving module, the second end of the second gating module is electrically connected with the second end of the touch module, and the second gating module is used for transmitting common electrode voltage to the touch module; wherein the transistor in each gating module is a double-gate thin film transistor or is formed by connecting two thin film transistors in parallel. According to the invention, the conduction impedance of the transistor is reduced, and the picture abnormity phenomenon during normal display after the touch is finished can be reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a driving circuit and method for a display panel and a display panel. Background Art

[0002] Currently, high-resolution touch display panels (such as car displays and mobile phone displays) widely use a TouchMUX (Multiplexer) structure to transmit multiple touch signals. However, the TouchMUX design in related technologies has the following problems: because the touch detection frequency is generally higher than the display frequency, and the MUX multiplexing design requires high switching speed and conduction capability of the MUXTFT, the MUXTFT's on-resistance is too large under this design, which will cause signal transmission attenuation. Ultimately, after the touch is completed, when the display is normal, the VCOM (common electrode voltage) of different touchpads is unevenly supplied, resulting in voltage differences, which in turn leads to abnormal screen phenomena such as evenly spaced blocks or horizontal stripes. Summary of the Invention

[0003] The main purpose of the embodiments of the present application is to provide a display panel driving circuit, method and display panel, aiming to solve the technical problem of how to reduce the abnormal phenomenon of the picture during normal display after the touch is completed.

[0004] To achieve the above-mentioned object, an embodiment of the present application provides a driving circuit for a display panel, wherein the driving circuit for the display panel includes:

[0005] an integrated driving module, the integrated driving module being used to generate an initial touch signal and output a common electrode voltage;

[0006] a first gating module, wherein a first end of the first gating module is electrically connected to a first end of the integrated driving module, and the first gating module is used to provide a touch signal transmission channel or transmit the common electrode voltage;

[0007] a touch control module, wherein a first end of the touch control module is electrically connected to a second end of the first gating module, and the touch control module is configured to superimpose a sensed amount onto the initial touch signal in response to a touch action;

[0008] a second gating module, wherein a first end of the second gating module is electrically connected to a second end of the integrated driving module, a second end of the second gating module is electrically connected to a second end of the touch control module, and the second gating module is used to transmit the common electrode voltage to the touch control module;

[0009] The transistors in the first gating module and the second gating module are both dual-gate thin film transistors or are composed of two thin film transistors connected in parallel.

[0010] In one embodiment, the touch module includes:

[0011] a first touch unit, wherein a first end of the first touch unit is electrically connected to a second end of the second gating module, and a second end of the first touch unit is electrically connected to a second end of the first gating module;

[0012] A second touch unit, wherein a first end of the second touch unit is electrically connected to a second end of the second gating module, and a second end of the second touch unit is electrically connected to a second end of the first gating module.

[0013] In one embodiment, the first gating module includes:

[0014] a first transistor, wherein a first end of the first transistor is electrically connected to a first end of the integrated driving module, and a second end of the first transistor is electrically connected to a second end of the first touch sensing unit;

[0015] a second transistor, wherein a first end of the second transistor is electrically connected to the first end of the integrated driving module, and a second end of the second transistor is electrically connected to the second end of the second touch control unit.

[0016] In one embodiment, the second gating module includes:

[0017] a third transistor, wherein a first end of the third transistor is electrically connected to a second end of the integrated driving module, and a second end of the third transistor is electrically connected to a first end of the second touch control unit;

[0018] a fourth transistor, wherein a first end of the fourth transistor is electrically connected to a second end of the integrated driving module, and a second end of the fourth transistor is electrically connected to a first end of the first touch control unit.

[0019] In one embodiment, the driving circuit of the display panel further includes:

[0020] a fifth transistor, wherein a first end of the fifth transistor is electrically connected to the third end of the integrated driving module, and a second end of the fifth transistor is electrically connected to the second end of the first touch unit and the first end of the second touch unit;

[0021] a sixth transistor, wherein a first end of the sixth transistor is electrically connected to the third end of the integrated driving module, and a second end of the sixth transistor is electrically connected to the second end of the first touch unit and the first end of the second touch unit.

[0022] In one embodiment, the driving circuit of the display panel further includes:

[0023] a seventh transistor, wherein a first end of the seventh transistor is electrically connected to the third end of the integrated driving module, and a second end of the seventh transistor is electrically connected to the second end of the first touch control unit;

[0024] an eighth transistor, wherein a first end of the eighth transistor is electrically connected to the third end of the integrated driving module, and a second end of the eighth transistor is electrically connected to the first end of the second touch control unit.

[0025] In one embodiment, the driving circuit of the display panel further includes:

[0026] A multiplexer is used to select and control each transistor in the driving circuit of the display panel.

[0027] In addition, to achieve the above-mentioned object, an embodiment of the present application further provides a method for driving a display panel, characterized in that the method for driving a display panel is applied to the driving circuit of the display panel described above, comprising:

[0028] Generate initial touch signal through integrated driver module;

[0029] Responding to an external touch action through a touch module and adding a sensed amount to the initial touch signal;

[0030] The integrated driving module monitors the change of the initial touch signal to execute an operation corresponding to the touch action.

[0031] In one embodiment, the display panel driving method further includes:

[0032] Outputting the common electrode voltage to the first gating module or the second gating module through the integrated driving module;

[0033] The common electrode voltage is transmitted to the touch control module through the first gating module or the second gating module.

[0034] In addition, to achieve the above-mentioned purpose, an embodiment of the present application further provides a display panel, comprising:

[0035] A driving circuit for the display panel as described above;

[0036] Or, a memory, a processor, and a driver program for a display panel stored in the memory and executable on the processor, wherein the processor implements the steps of the display panel driving method as described above when executing the driver program for the display panel.

[0037] An embodiment of the present application proposes a driving circuit, method and display panel for a display panel, wherein the driving circuit of the display panel includes: an integrated driving module, the integrated driving module is used to generate an initial touch signal and output a common electrode voltage; a first gating module, the first end of the first gating module is electrically connected to the first end of the integrated driving module, the first gating module is used to provide a touch signal transmission channel or transmit the common electrode voltage; a touch module, the first end of the touch module is electrically connected to the second end of the first gating module, the touch module is used to superimpose a sensed amount on the initial touch signal in response to a touch action; a second gating module, the first end of the second gating module is electrically connected to the second end of the integrated driving module, the second end of the second gating module is electrically connected to the second end of the touch module, the second gating module is used to transmit the common electrode voltage to the touch module; wherein the transistors in the first gating module and the second gating module are both dual-gate thin-film transistors or are composed of two thin-film transistors connected in parallel with independent gates. The embodiments of the present application replace the single-gate TFT in the traditional TouchMUX design with a dual-gate thin-film transistor or a transistor composed of two thin-film transistors in parallel, thereby improving charge mobility and having lower on-resistance at the same gate drive voltage, thereby enhancing signal transmission capability. At the same time, it also reduces the potential difference of the touch module, improving the signal quality during touch sensing. It also reduces the problem of unstable common electrode voltage supply in touch sensing mode, making touch sensing more accurate, increasing the switching capability and switching speed of the transistor, reducing the occurrence of periodic blocks, and improving display uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only part of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 A schematic structural diagram of a driving circuit for a display panel provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the structure of a display panel drive circuit after the touch module is refined according to an embodiment of the present application;

[0041] Figure 3 A schematic structural diagram of a display panel driving circuit provided in an embodiment of the present application after the first gating module and the second gating module are refined;

[0042] Figure 4A schematic structural diagram of another display panel driving circuit provided in an embodiment of the present application;

[0043] Figure 5 A schematic structural diagram of a driving circuit of another display panel provided in an embodiment of the present application;

[0044] Figure 6 A schematic flow chart of a method for driving a display panel provided in an embodiment of the present application;

[0045] Figure 7 A schematic flow chart of another method for driving a display panel provided in an embodiment of the present application.

[0046] Description of Figure Numbers:

[0047] 10. Integrated drive module; 20. First selection module; 30. Touch module; 40. Second selection module; 31. First touch unit; 32. Second touch unit; T1. First transistor; T2. Second transistor; T3. Third transistor; T4. Fourth transistor; T5. Fifth transistor; T6. Sixth transistor; T7. Seventh transistor; T8. Eighth transistor; 101. Effective display area; 102. Driving circuit of display panel; 100. Array substrate; 200. Color filter substrate; 300. Liquid crystal layer. DETAILED DESCRIPTION

[0048] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the embodiments of the present application.

[0049] Currently, high-resolution touch display panels (such as car displays and mobile phone displays) widely use a TouchMUX (Multiplexer) structure to transmit multiple touch signals. However, the TouchMUX design in the related art has the following problems: Since the touch detection frequency is generally higher than the display frequency, and the MUX multiplexing design requires a high switching speed and conduction capability of the MUXTFT (Thin Film Transistor), the on-resistance of the MUXTFT is too large under this design, which will cause signal transmission attenuation. Ultimately, after the touch ends, during normal display, the VCOM (common electrode voltage) of different touchpads is not evenly supplied with power, resulting in a voltage difference, which in turn leads to screen anomalies such as equally spaced blocks or horizontal stripes. The TouchMUX design has only a single VCOM drive path, and there are not enough VCOM input points in the Y direction of the display panel. This means that when the touch mode is switched, the potential change will cause the VCOM distribution to be uneven, further exacerbating the above-mentioned screen anomalies.

[0050] Based on this, the embodiments of the present application provide a driving circuit, method and display panel for a display panel. By replacing the single-gate TFT in the traditional TouchMUX design with a dual-gate thin-film transistor or a device composed of two thin-film transistors in parallel, the charge mobility is improved, and the on-resistance is lower under the same gate drive voltage, thereby enhancing the signal transmission capability; at the same time, the potential difference of the touch module is reduced, and the signal quality during touch sensing is improved; the problem of unstable common electrode voltage power supply in the touch sensing mode is also reduced, making touch sensing more accurate, increasing the transistor switching capability and switching speed, reducing the occurrence of periodic blocks, and improving display uniformity.

[0051] The driving circuit, method and display panel of the display panel provided in the embodiments of the present application are specifically described through the following embodiments. First, the driving circuit of the display panel in the embodiments of the present application is described.

[0052] The embodiment of the present application provides a driving circuit for a display panel, referring to Figure 1 , Figure 1 This is a schematic diagram of the structure of a display panel driving circuit provided in one embodiment of the present application. In this embodiment, the display panel driving circuit includes:

[0053] An integrated driving module 10, which is used to generate an initial touch signal and output a common electrode voltage;

[0054] A first gating module 20 , wherein a first end of the first gating module 20 is electrically connected to a first end of the integrated driving module 10 , and the first gating module 20 is used to provide a touch signal transmission channel or transmit a common electrode voltage;

[0055] A touch module 30, wherein a first end of the touch module 30 is electrically connected to a second end of the first gating module 20, and the touch module 30 is configured to generate a sense signal in response to a touch action, and transmit the sense signal to the integrated driving module 10 via the first gating module 20 to be superimposed with the initial touch signal;

[0056] A second gating module 40, wherein a first end of the second gating module 40 is electrically connected to a second end of the integrated driving module 10, and a second end of the second gating module 40 is electrically connected to a second end of the touch control module 30, and the second gating module 40 is used to transmit the common electrode voltage to the touch control module 30;

[0057] The transistors in the first gating module 20 and the second gating module 40 are both double-gate thin film transistors or are composed of two thin film transistors connected in parallel.

[0058] In this embodiment, the integrated driver module 10 can be implemented by software or hardware. The integrated driver module 10 has the functions of SourceIC (source driver chip) and TouchIC (touch chip). It can not only generate an initial touch signal, but also output the VCOM common electrode voltage for display driving. It can also monitor the changes in the initial touch signal to obtain the sensing amount superimposed on the initial touch signal by the touch module 30 based on the sensed touch action, and then perform the operation corresponding to the touch action. As an example, the integrated driver module 10 can be implemented using a TDDI (Touch and Display Driver Integration) chip.

[0059] In this embodiment, the first gating module 20 and the second gating module 40 are used to determine the signal path between the integrated driving module 10 and the touch module 30. The first gating module 20 can serve as a touch signal transmission channel between the integrated driving module 10 and the touch module 30 during the touch sensing stage, and can transmit the common electrode voltage output by the integrated driving module 10 to the touch module 30 during the image display stage. The specific control method can be determined according to actual conditions. The first gating module 20 and the second gating module 40 both include multiple transistors for determining whether the signal path is on or off. It should be noted that, unlike the single-gate TFT used in the traditional design, the present embodiment replaces the traditional single-gate TFT design by using a dual-gate TFT or two TFTs connected in parallel with independent gates (for example, the source and drain of the two TFTs are connected in common), so that the on-resistance is lower under the same gate drive voltage, thereby enhancing the signal transmission capability.

[0060] As an example, a TFT can be considered as a variable resistor controlled by gate voltage. When a dual-gate TFT or two TFTs are connected in parallel, it is equivalent to providing two parallel paths for current. According to the parallel resistance calculation formula: 1 / R 总 =1 / R1+1 / R2 (where R 总 is the total resistance after parallel connection, R1 and R2 are the resistances of the two TFTs respectively), the reciprocal of the total resistance is equal to the sum of the reciprocals of each resistance, so the total impedance after parallel connection will be smaller than the impedance of a single TFT, and the two gates can also control the threshold voltage, channel width and carrier concentration respectively, which can effectively reduce the channel resistance and thus improve the carrier mobility.

[0061] Reference Figure 2 In some feasible embodiments, the touch module 30 may specifically include:

[0062] A first touch unit 31, wherein a first end of the first touch unit 31 is electrically connected to a second end of the second gating module 40, and a second end of the first touch unit 31 is electrically connected to a second end of the first gating module 20;

[0063] The second touch unit 32 has a first end electrically connected to the second end of the second gating module 40 , and a second end electrically connected to the second end of the first gating module 20 .

[0064] In this embodiment, the touch module 30 is composed of a first touch unit 31 and a second touch unit 32. The first touch unit 31 and the second touch unit 32 have the same function, but also have the ability to perform different functions at the same time, such as the following situations: ① the first touch unit 31 performs touch sensing, and the second touch unit 32 receives the VCOM voltage provided by the integrated driver module 10; or ② the first touch unit 31 receives the VCOM voltage provided by the integrated driver module 10, and the second touch unit 32 performs touch sensing; or ③ both touch units receive the VCOM voltage provided by the integrated driver module 10, etc. This embodiment is not limited to this.

[0065] As an example, the first touch unit 31 and the second touch unit 32 may each include multiple TPPADs (touch pads) for sensing the user's touch actions and superimposing corresponding sensing quantities on the initial touch signal, wherein the process of superimposing the sensing quantities on the initial touch signal can also be regarded as a process of modulating the initial touch signal.

[0066] Reference Figure 3 In some feasible embodiments, the first gating module 20 may specifically include:

[0067] a first transistor T1, wherein a first end of the first transistor T1 is electrically connected to a first end of the integrated driving module 10, and a second end of the first transistor T1 is electrically connected to a second end of the first touch unit 31;

[0068] a second transistor T2, wherein a first end of the second transistor T2 is electrically connected to a first end of the integrated driving module 10, and a second end of the second transistor T2 is electrically connected to a second end of the second touch-sensing unit 32;

[0069] The second gating module 40 may specifically include:

[0070] a third transistor T3, wherein a first end of the third transistor T3 is electrically connected to a second end of the integrated driving module 10, and a second end of the third transistor T3 is electrically connected to a first end of the second touch-sensing unit 32;

[0071] The fourth transistor T4 has a first end electrically connected to the second end of the integrated driving module 10 , and a second end electrically connected to the first end of the first touch unit 31 .

[0072] In this embodiment, a structural diagram of a specific implementation example of a first gating module 20 and a second gating module 40 is provided. Figure 3 It can be seen that the first transistor T1 to the fourth transistor T4 are all dual-gate TFTs. This structure is bilaterally symmetrical and can improve the driving capability of the TFTs, increase the VCOM thrust of the first touch unit 31 and the second touch unit 32, reduce the unstable VCOM power supply in the touch sensing mode, make touch sensing more accurate, and thus improve the abnormal image situation.

[0073] As an example, when the first transistor T1 and the third transistor T3 are turned on, the second transistor T2 and the fourth transistor T4 are in the off state. At this time, the first touch unit 31 performs touch sensing, and the second touch unit 32 receives the VCOM voltage provided by the integrated driving module 10 via the third transistor T3; conversely, when the second transistor T2 and the fourth transistor T4 are turned on, the first transistor T1 and the third transistor T3 are in the off state. At this time, the second touch unit 32 performs touch sensing, and the first touch unit 31 receives the VCOM voltage provided by the integrated driving module 10 via the fourth transistor T4.

[0074] Reference Figure 4 In some feasible embodiments, the driving circuit of the display panel may further include:

[0075] a fifth transistor T5, wherein a first end of the fifth transistor T5 is electrically connected to the third end of the integrated driving module 10, and a second end of the fifth transistor T5 is electrically connected to the second end of the first touch unit 31 and the first end of the second touch unit 32;

[0076] The sixth transistor T6 has a first end electrically connected to the third end of the integrated driving module 10 , and a second end electrically connected to the second end of the first touch unit 31 and the first end of the second touch unit 32 .

[0077] In this embodiment, by introducing the fifth transistor T5 and the sixth transistor T6, a VCOM input point can be added in the middle of the touch module 30 in the Y direction of the display panel (or between any two TP PADs). The VCOM voltage provided by the second selection module 40 in the aforementioned embodiment is considered to be output from the second terminal SX_DUM1 of the integrated driver module 10. The VCOM voltage provided by this newly added input point can be considered to be output from the third terminal SX_DUM2 of the integrated driver module 10. SX_DUM2 and SX_DUM1 are independent of each other. Due to the increase in the number of VCOM input points, the display driving capability is enhanced, and the VCOM signal can be evenly transmitted to the first touch unit 31 and the second touch unit 32. This avoids uneven VCOM power supply during touch sensing, improves display stability, and prevents screen anomalies such as screen blocking or horizontal stripes.

[0078] As an example, by adjusting the in-plane design, after touch sensing is completed, the fifth transistor T5 and the sixth transistor T6 can be turned on when entering the display stage, and then a VCOM input point is added between the first touch unit 31 and the second touch unit 32, so that the VCOM signal can be evenly transmitted to the first touch unit 31 and the second touch unit 32.

[0079] Reference Figure 5 In some feasible embodiments, the driving circuit of the display panel may further include:

[0080] a seventh transistor T7, wherein a first terminal of the seventh transistor T7 is electrically connected to the third terminal of the integrated driving module 10, and a second terminal of the seventh transistor T7 is electrically connected to the second terminal of the first touch unit 31;

[0081] An eighth transistor T8 , wherein a first end of the eighth transistor T8 is electrically connected to the third end of the integrated driving module 10 , and a second end of the eighth transistor T8 is electrically connected to the first end of the second touch sensing unit 32 .

[0082] In this embodiment, taking the display panel including multiple groups of driving circuits consisting of a first selection module 20, a touch module 30 and a second selection module 40 as an example, by setting the seventh transistor T7 to be electrically connected to the first touch unit 31 in each group of driving circuits, and the eighth transistor T8 to be electrically connected to the second touch unit 32 in each group of driving circuits, the technical effect of increasing the VCOM input point can also be achieved, so that the VCOM signal can be evenly transmitted to the first touch unit 31 and the second touch unit 32.

[0083] As an example, by adjusting the in-plane design, when the first touch unit 31 performs touch sensing, the first transistor T1 is turned on, the fourth transistor T4 and the seventh transistor T7 are turned off, the second transistor T2 is turned off, and the third transistor T3 and the eighth transistor T8 are turned on. At this time, the second touch unit has two VCOM input points. After the third transistor T3 and the eighth transistor T8 are turned on, the left half of the display panel is provided by the left SX_DUM1 and the right SX_DUM2, and the right half of the screen is provided by the right SX_DUM1 and the right SX_DUM2; Similarly, when the second touch unit 32 performs touch sensing, the first touch unit 31 has two VCOM input points. After the fourth transistor T4 and the seventh transistor T7 are turned on, the left half of the screen is provided by the SX_DUM1 and SX_DUM2 on the left, and the right half of the screen is provided by the SX_DUM1 on the right and the SX_DUM2 on the left; and after the touch sensing is completed and the display stage is entered, the seventh transistor T7 and the eighth transistor T8 are both turned on. Based on the two VCOM input points, the VCOM signal can be evenly transmitted to the first touch unit 31 and the second touch unit 32.

[0084] In some feasible embodiments, the driving circuit of the display panel may further include:

[0085] The multiplexer is used to select and control each transistor in the driving circuit of the display panel.

[0086] In this embodiment, each transistor in the driving circuit of the display panel can be controlled by a multiplexer, that is, the controlled ends of the transistors in each embodiment are electrically connected to the multiplexer.

[0087] An embodiment of the present application provides a display panel drive circuit. By replacing the single-gate TFT in a traditional TouchMUX design with a dual-gate thin-film transistor or a transistor composed of two thin-film transistors in parallel, charge mobility is improved, and the on-resistance is lowered at the same gate drive voltage, thereby enhancing signal transmission capability. At the same time, the potential difference of the touch module is reduced, thereby improving the signal quality during touch sensing. The problem of unstable common electrode voltage supply in touch sensing mode is also reduced, making touch sensing more accurate. The switching capability and switching speed of the transistor are increased, the occurrence of periodic blocks is reduced, and display uniformity is improved. In addition, by adding a VCOM input point, the VCOM signal can be evenly transmitted to the touch module, further improving display stability and avoiding the occurrence of screen anomalies.

[0088] In addition, the embodiment of the present application further provides a method for driving a display panel, which is applied to the driving circuit of the display panel described above. Figure 6In this embodiment, the driving method of the display panel includes steps S10 to S30.

[0089] Step S10, generating an initial touch signal through the integrated driving module;

[0090] Step S20, responding to the external touch action through the touch module and adding the sensed amount to the initial touch signal;

[0091] In step S30 , the integrated driving module monitors the change of the initial touch signal to execute an operation corresponding to the touch action.

[0092] Reference Figure 7 In some feasible embodiments, the display panel driving method further includes:

[0093] Step S40, outputting the common electrode voltage to the first gating module or the second gating module through the integrated driving module;

[0094] Step S50 : transmitting the common electrode voltage to the touch control module through the first gating module or the second gating module.

[0095] The specific structure of the driving circuit of the display panel involved in the driving method of the display panel provided in this embodiment refers to the above-mentioned embodiment. Since the driving method of the display panel provided in this embodiment adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0096] In addition, an embodiment of the present application further provides a display panel, comprising:

[0097] The driving circuit of the display panel provided by the above embodiment;

[0098] Or, a memory, a processor, and a driver program for a display panel stored in the memory and executable on the processor, wherein the processor implements the steps of the display panel driving method as described above when executing the driver program for the display panel.

[0099] As an example, the display panel in this embodiment can be a TN (Twisted Nematic) display panel, an IPS (In-Plane Switching) display panel, a VA (Vertical Alignment) display panel, an MVA (Multi-Domain Vertical Alignment) display panel. Of course, it can also be other types of display panels, such as an OLED (Organic Light-Emitting Diode) display panel.

[0100] As an example, the display panel can be applied to a display device, which can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or the like.

[0101] This embodiment provides a display panel. Since the display panel proposed in this embodiment adopts all the technical solutions of all the above embodiments and belongs to the same technical concept, this embodiment has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0102] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0103] In addition, in the embodiments of the present application, descriptions such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the embodiments of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which both A and B are satisfied.

[0104] In the embodiments of the present application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection between two elements or the interaction between two elements, unless otherwise specified. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0105] It should also be understood that references to "one embodiment" or "some embodiments" in the description of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures, or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and their variations all mean "including but not limited to," unless otherwise specifically emphasized.

[0106] It should be noted that the technical solutions of the various embodiments of the present application can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the embodiments of the present application.

[0107] The above are only optional embodiments of the embodiments of the present application, and do not limit the patent scope of the embodiments of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the embodiments of the present application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the embodiments of the present application.

Claims

1. A driving circuit for a display panel, characterized in that: The driving circuit of the display panel includes: an integrated driving module, the integrated driving module being used to generate an initial touch signal and output a common electrode voltage; a first gating module, wherein a first end of the first gating module is electrically connected to a first end of the integrated driving module, and the first gating module is used to provide a touch signal transmission channel or transmit the common electrode voltage; a touch control module, wherein a first end of the touch control module is electrically connected to a second end of the first gating module, and the touch control module is configured to superimpose a sensed amount onto the initial touch signal in response to a touch action; a second gating module, wherein a first end of the second gating module is electrically connected to a second end of the integrated driving module, a second end of the second gating module is electrically connected to a second end of the touch control module, and the second gating module is used to transmit the common electrode voltage to the touch control module; The transistors in the first gating module and the second gating module are both dual-gate thin film transistors or are composed of two thin film transistors connected in parallel with independent gates.

2. The driving circuit of the display panel according to claim 1, wherein: The touch control module includes: a first touch unit, wherein a first end of the first touch unit is electrically connected to a second end of the second gating module, and a second end of the first touch unit is electrically connected to a second end of the first gating module; A second touch unit, wherein a first end of the second touch unit is electrically connected to a second end of the second gating module, and a second end of the second touch unit is electrically connected to a second end of the first gating module.

3. The driving circuit of the display panel according to claim 2, wherein: The first gating module includes: a first transistor, wherein a first end of the first transistor is electrically connected to a first end of the integrated driving module, and a second end of the first transistor is electrically connected to a second end of the first touch control unit; a second transistor, wherein a first end of the second transistor is electrically connected to the first end of the integrated driving module, and a second end of the second transistor is electrically connected to the second end of the second touch control unit.

4. The driving circuit of the display panel according to claim 2, wherein: The second gating module includes: a third transistor, wherein a first end of the third transistor is electrically connected to a second end of the integrated driving module, and a second end of the third transistor is electrically connected to a first end of the second touch control unit; a fourth transistor, wherein a first end of the fourth transistor is electrically connected to a second end of the integrated driving module, and a second end of the fourth transistor is electrically connected to a first end of the first touch control unit.

5. The driving circuit of the display panel according to claim 2, wherein: The driving circuit of the display panel further includes: a fifth transistor, wherein a first end of the fifth transistor is electrically connected to the third end of the integrated driving module, and a second end of the fifth transistor is electrically connected to the second end of the first touch unit and the first end of the second touch unit; a sixth transistor, wherein a first end of the sixth transistor is electrically connected to the third end of the integrated driving module, and a second end of the sixth transistor is electrically connected to the second end of the first touch unit and the first end of the second touch unit.

6. The driving circuit of the display panel according to claim 2, wherein: The driving circuit of the display panel further includes: a seventh transistor, wherein a first end of the seventh transistor is electrically connected to the third end of the integrated driving module, and a second end of the seventh transistor is electrically connected to the second end of the first touch control unit; an eighth transistor, wherein a first end of the eighth transistor is electrically connected to the third end of the integrated driving module, and a second end of the eighth transistor is electrically connected to the first end of the second touch control unit.

7. The driving circuit for a display panel according to any one of claims 1 to 6, wherein: The driving circuit of the display panel further includes: A multiplexer is used to select and control each transistor in the driving circuit of the display panel.

8. A method for driving a display panel, characterized in that: The display panel driving method is applied to the display panel driving circuit according to any one of claims 1 to 7, comprising: Generate initial touch signal through integrated driver module; Responding to an external touch action through a touch module and adding a sensed amount to the initial touch signal; The integrated driving module monitors the change of the initial touch signal to execute an operation corresponding to the touch action.

9. The method for driving a display panel according to claim 8, wherein: The display panel driving method further includes: Outputting the common electrode voltage to the first gating module or the second gating module through the integrated driving module; The common electrode voltage is transmitted to the touch control module through the first gating module or the second gating module.

10. A display panel, characterized in that: The display panel includes: The driving circuit of the display panel according to any one of claims 1 to 7; Or, a memory, a processor, and a driver for a display panel stored in the memory and executable on the processor, wherein the processor implements the steps of the method for driving a display panel as claimed in claim 8 or 9 when executing the driver for the display panel.

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