Driving method, device and touch display device of touch display panel

Abstract

This application discloses a driving method, apparatus, and touch display device for a touch display panel, relating to the field of display technology. The touch display panel includes multiple pixel units and multiple touch units; during the display of any frame of image, the touch display panel includes at least one display scanning stage and at least one touch scanning stage, which are alternately set. The driving method for the touch display panel includes: in the display scanning stage, charging each row of pixel units at a first frequency for each frame of image, and providing display scanning signals to the pixel units to drive the pixel units for display, wherein the first frequency is greater than a second frequency for the touch display panel to display the image; in the touch scanning stage, providing touch scanning signals to the touch units and receiving touch detection signals from the touch units. This application can improve the problem in related technologies where touch display panels cannot be adjusted to the optimal touch state.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a driving method, apparatus, and touch display device for a touch display panel. Background Technology

[0002] With the continuous development of display technology, people's demands for touch display panels are becoming increasingly diversified. For example, electronic products such as mobile phones and tablets are developing towards higher waterproofing and higher touch performance. However, the adjustable frequency range of touch display panels in related technologies is limited, resulting in limited performance improvements. There is a problem that touch display panels cannot be adjusted to their optimal touch state, which is the state where the touch display panel has the best sensitivity without causing interference. Summary of the Invention

[0003] This application provides a driving method, apparatus, and touch display device for a touch display panel, which can improve the limitations of the adjustable frequency of the touch display panel in related technologies, resulting in limited performance improvement and the inability of the touch display panel to be adjusted to the optimal touch state.

[0004] In a first aspect, embodiments of this application provide a driving method for a touch display panel, the touch display panel including multiple pixel units and multiple touch units; the touch display panel includes at least one display scanning stage and at least one touch scanning stage during the display of any frame of image, the display scanning stage and the touch scanning stage being alternately set; the driving method for the touch display panel includes:

[0005] During the display scanning phase, for each frame of image, each row of pixel units is charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display of the pixel units. The first frequency is greater than the second frequency of the touch display panel displaying the image.

[0006] During the touch scanning phase, a touch scanning signal is provided to the touch unit, and the touch detection signal from the touch unit is received.

[0007] In some alternative implementations, the first frequency is n times the second frequency, where n is a positive integer and n≥2.

[0008] In some alternative implementations, 0 < t ≤ 1 / (2F1) ms, where t is the total duration of the touch scanning phase and F1 is the second frequency.

[0009] In some alternative implementations, the frequency of the light emission control signal of the touch display panel is equal to a first frequency.

[0010] In some alternative implementations, the frequency of the display scanning signal of the touch display panel is equal to a first frequency.

[0011] In some optional implementations, the synchronization signal of the touch display panel includes a first pulse and a second pulse. The first pulse is used to indicate that the touch display panel enters the scanning display stage, and the second pulse is used to indicate that the touch display panel enters the touch scanning stage. The widths of the first pulse and the second pulse are different.

[0012] In some alternative implementations, the width of the second pulse is greater than the width of the first pulse.

[0013] In some alternative implementations, the first frequency is 240 Hz.

[0014] Secondly, embodiments of this application also provide a driving device for a touch display panel, the touch display panel including a plurality of pixel units and a plurality of touch units; the touch display panel includes at least one display scanning stage and at least one touch scanning stage during the display of any frame of image, the display scanning stage and the touch scanning stage being alternately set; the driving device for the touch display panel includes:

[0015] The display driver module is used to charge each row of pixel units at a first frequency for each frame of image during the display scanning phase, and to provide display scanning signals to the pixel units to drive the display units. The first frequency is greater than the second frequency of the touch display panel displaying the image.

[0016] The touch driver module is used to provide touch scanning signals to the touch unit and receive touch detection signals from the touch unit during the touch scanning phase.

[0017] Thirdly, embodiments of this application also provide a touch display device, including: a touch display panel and a driving device for the touch display panel;

[0018] The touch display panel includes multiple pixel units and multiple touch units;

[0019] The driving device for the touch display panel is used to drive the touch display panel and execute the driving method of the touch display panel according to any one of the first aspects.

[0020] Fourthly, embodiments of this application also provide a computer storage medium storing computer program instructions, which, when executed by a processor, implement a driving method for a touch display panel as described in any of the first aspects.

[0021] According to embodiments of this application, a driving method, apparatus, and touch display device for a touch display panel are provided. The touch display panel may include multiple pixel units and multiple touch units. During the display of any frame of image, the touch display panel includes at least one display scanning stage and at least one touch scanning stage, which are alternately set. In the display scanning stage, for each frame of image, each row of pixel units is charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display. In the touch scanning stage, a touch scanning signal is provided to the touch units, and touch detection signals from the touch units are received. On the one hand, because the first frequency is large... The second frequency for displaying images on the touch display panel allows for shorter row charging time of the touch display panel while ensuring the charging time and power requirements of each pixel unit. This shortens the total duration of the display scanning phase. Since the duration of displaying one frame on the touch display panel remains constant, the total duration of the touch scanning phase is increased, thereby expanding the adjustable frequency range of the touch display panel's touch scanning phase. This improves the problem of the touch display panel not being able to adjust to the optimal touch state. On the other hand, by setting the display scanning phase and the touch scanning phase, display scanning and touch scanning are separated, ensuring that display scanning and touch scanning do not interfere with each other. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0023] Figure 1 A flowchart illustrating the driving method for a touch display panel provided in an embodiment of this application is shown.

[0024] Figure 2 This diagram illustrates the timing of the light emission control signal and the display scanning signal of the touch display panel provided in an embodiment of this application.

[0025] Figure 3 This diagram illustrates the structure of the driving device for the touch display panel provided in an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the structure of the touch display device provided in an embodiment of this application. Detailed Implementation

[0027] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0029] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0030] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0031] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0032] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies:

[0033] The higher the driving frequency of the touch display panel, the faster the signal frequency changes, and the stronger the electromagnetic interference (EMI) generated. This causes the display data of the pixels on the touch display panel to be coupled and interfered with when they are charging, resulting in the touch display panel displaying water ripples.

[0034] In related technologies, to improve the issue of water ripples on touch display panels, the self-capacitance and mutual capacitance frequencies of the touch display panel are typically adjusted outside the display frequency range. However, considering the need to avoid interfering with other frequency bandwidths of the touch display panel's motherboard, the adjustable frequency range of the self-capacitance and mutual capacitance frequencies is limited, resulting in limited performance improvement. This leads to the problem that the touch display panel cannot be adjusted to its optimal touch state, which is the state where the touch display panel has the highest sensitivity without causing interference.

[0035] To address the aforementioned issues, this application provides a driving method, apparatus, and touch display device for a touch display panel. The driving method for the touch display panel provided in this application will be described below.

[0036] Figure 1 This is a schematic flowchart illustrating the driving method for a touch display panel provided in an embodiment of this application.

[0037] The touch display panel may include multiple pixel units and multiple touch units; the touch display panel may include at least one display scanning phase and at least one touch scanning phase during any frame of an image, and the display scanning phase and the touch scanning phase may be alternated; for example Figure 1 As shown, the method may include steps S110 to S120.

[0038] S110. During the display scanning phase, for each frame of image, each row of pixel units is charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display of the pixel units. The first frequency is greater than the second frequency of the touch display panel displaying the image.

[0039] S120. During the touch scanning phase, a touch scanning signal is provided to the touch unit, and the touch detection signal from the touch unit is received.

[0040] According to an embodiment of this application, a driving method for a touch display panel is provided. The touch display panel may include multiple pixel units and multiple touch units. During the display of any frame of image, the touch display panel includes at least one display scanning stage and at least one touch scanning stage, which are alternately set. In the display scanning stage, for each frame of image, each row of pixel units is charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display. In the touch scanning stage, a touch scanning signal is provided to the touch units, and touch detection signals from the touch units are received. On one hand, by… Since the first frequency is greater than the second frequency at which the touch display panel displays the image, the charging time of the touch display panel can be shortened while ensuring the charging time and power requirements of each pixel unit. This shortens the total duration of the display scanning phase and increases the total duration of the touch scanning phase, thereby increasing the adjustable frequency range of the touch display panel's touch scanning phase and improving the problem of the touch display panel not being able to adjust to the optimal touch state. On the other hand, by setting the display scanning phase and the touch scanning phase, the display scanning and touch scanning are separated, and the display scanning and touch scanning can be made to not interfere with each other.

[0041] The touch display panel can be either an LCD touch display panel or an OLED touch display panel; there is no limitation on this.

[0042] Provided that the first frequency is greater than the second frequency at which the touch display panel displays the image, the first and second frequencies can be set according to the actual situation and are not limited here.

[0043] The compression time of the horizontal charging time of the touch display panel can be adjusted according to the time required for the touch display panel to occupy.

[0044] For example, in S110, the touch display panel can also be provided with multiple display scan signal lines and multiple data signal lines. Pixel units located in the same row can share the display scan signal lines, and pixel units located in the same column can share the data signal lines. During the display scanning phase, for each frame of the image, the pixel units in each row are charged at 120Hz, and by sequentially providing display scan signals to each display scan signal line, the data signals transmitted by the data signal lines are written to each pixel unit in a one-to-one correspondence, thereby controlling the pixel units to emit light at a frequency of 60Hz to present a frame of the image.

[0045] The touch unit can be a mutual capacitive touch unit or a self-capacitive touch unit, etc., and there is no limitation here.

[0046] In S120, as an example, when the touch unit is a self-capacitive touch unit, the touch unit may include a touch electrode. When a touch scanning signal is provided to the touch electrode of the touch unit, by acquiring the touch detection signal fed back by the touch electrode of the touch unit, it can be determined whether the capacitance of the touch electrode to ground has changed. Then, the specific touch position can be determined according to the coordinate value corresponding to the touch electrode whose capacitance to ground has changed.

[0047] As another example, when the touch unit is a capacitive touch unit, the touch unit may include a touch driving electrode and a touch sensing electrode. The projections between the touch driving electrode and the touch sensing electrode overlap, and a capacitance is formed at the intersection of the two sets of electrodes. When the touch display panel detects that a touch object is touching the touch display panel, the capacitance between the two electrodes near the touch position is obtained by providing a touch scanning signal to the touch driving electrode of the same touch unit and receiving the touch detection signal fed back by the touch sensing electrode of the touch unit. Based on the change in capacitance of the touch unit, it can be determined whether the coordinate value corresponding to the touch unit is the coordinate value of the touch point, and thus determine the touch position.

[0048] Understandably, the pixel units in each row are not charged during the touch scanning phase.

[0049] In some alternative implementations, the first frequency can be n times the second frequency, where n is a positive integer and n≥2.

[0050] In this embodiment, since the first frequency can be n times the second frequency, and n is a positive integer, the row charging time corresponding to the second frequency is compressed into the row charging time corresponding to the first frequency. Therefore, while ensuring the charging time and power requirements of each pixel unit, the row charging time of the touch display panel can be shortened, thereby shortening the total duration of the display scanning stage and increasing the total duration of the touch scanning stage. This increases the adjustable frequency range of the touch display panel and improves the problem that the touch display panel cannot be adjusted to the optimal touch state.

[0051] For example, when the second frequency for displaying images on the touch display panel is 60Hz, the first frequency for charging each row of pixel units can be 120Hz or 240Hz.

[0052] In some alternative implementations, the first frequency may be 240 Hz.

[0053] In this embodiment, the first frequency can be 240Hz. Under the premise that the first frequency is greater than the second frequency and the charging time and power requirements of each pixel unit are ensured, the row charging time of the touch display panel can be shortened, thereby shortening the total duration of the display scanning stage and increasing the total duration of the touch scanning stage. This increases the adjustable frequency range of the touch scanning stage of the touch display panel, thereby increasing the adjustable frequency range of the touch display panel and improving the problem that the touch display panel cannot be adjusted to the optimal touch state.

[0054] In some alternative implementations, the first frequency can be m times the second frequency, where m is a positive number and m is not an integer, and m > 1.

[0055] For example, when the second frequency for displaying images on the touch display panel is 60Hz, the first frequency for charging each row of pixel units can be 90Hz or 150Hz.

[0056] In some alternative implementations, 0 < t ≤ 1 / (2F1) ms, where t is the total duration of the touch scanning phase and F1 is the second frequency.

[0057] In this embodiment, by setting the total duration of the touch scanning phase to 0 < t ≤ 1 / (2F1) ms, while ensuring the charging time and power requirements of each pixel unit, the time occupied by the touch scanning phase in the same frame image is increased while keeping the duration of displaying one frame on the touch display panel unchanged. This increases the adjustable frequency range of the touch scanning phase of the touch display panel, thereby increasing the adjustable frequency range of the touch display panel and improving the problem that the touch display panel cannot be adjusted to the optimal touch state.

[0058] For example, when the second frequency is 60Hz and the first frequency is 120Hz, the time required to display one frame of image is 1 / 60 = 16.7ms, and the total duration of the touch scanning phase is 1 / 60 / 2 = 8.33ms.

[0059] In some alternative implementations, the frequency of the light emission control signal of the touch display panel can be equal to the first frequency.

[0060] In this embodiment, by setting the frequency of the light emission control signal of the touch display panel to be equal to the first frequency, data is transmitted during the display scanning phase and no data is transmitted during the touch scanning phase, enabling the touch display panel to display images at the second frequency.

[0061] For example, such as Figure 2As shown, the light emission control signal EM1 is the light emission control signal corresponding to the first frequency of 120Hz, and the light emission control signal EM2 is the light emission control signal corresponding to the second frequency of 60Hz. During the display scanning stage, for each frame of the image, while charging each row of pixel units according to the first frequency of 120Hz, the pixel units are controlled to be displayed according to the light emission control signal EM1.

[0062] Optionally, when the first frequency is n times the second frequency, where n is a positive integer and n≥2, the width of the light emission control signal corresponding to the first frequency is 1 / n times the width of the light emission control signal corresponding to the second frequency.

[0063] In some alternative implementations, the frequency of the display scanning signal of the touch display panel can be equal to the first frequency.

[0064] The display scan signal can be a signal used to control the charging of each row of pixel units.

[0065] In this embodiment, by setting the frequency of the display scanning signal of the touch display panel to be equal to the first frequency, the row charging time of the touch display panel can be shortened while ensuring the charging time and power requirements of each pixel unit. This shortens the total duration of the display scanning phase. Since the duration of the touch display panel displaying one frame remains unchanged, the total duration of the touch scanning phase is increased, thereby increasing the adjustable frequency range of the touch display panel's touch scanning phase. This increases the adjustable frequency range of the touch display panel and improves the problem that the touch display panel cannot be adjusted to the optimal touch state.

[0066] For example, as Figure 2 As shown, the display scan signal Scan1 is the light emission control signal corresponding to the first frequency of 120Hz, and the display scan signal Scan2 is the light emission control signal corresponding to the second frequency of 60Hz. During the display scan stage, for each frame of the image, while charging each row of pixel units according to the first frequency of 120Hz, the display scan signal Scan2 controls the charging of each row of pixel units.

[0067] In some optional implementations, the synchronization signal of the touch display panel includes a first pulse and a second pulse. The first pulse is used to indicate that the touch display panel enters the scanning display stage, and the second pulse is used to indicate that the touch display panel enters the touch scanning stage. The widths of the first pulse and the second pulse are different.

[0068] In this embodiment, by setting the width of the first pulse to be different from the width of the second pulse, it is possible to distinguish the type of pulse by recognizing the pulse width, that is, to distinguish the second pulse from the first pulse.

[0069] In some alternative implementations, the width of the second pulse may be greater than the width of the first pulse.

[0070] In this embodiment, since the width of the first pulse is relatively short, the second pulse is difficult to detect if the width of the second pulse is less than the width of the first pulse. Therefore, the width of the second pulse is set to be greater than the width of the first pulse in order to trigger the detection of the second pulse.

[0071] Optionally, the width of the second pulse can be q times the width of the first pulse, where q is a positive number and q > 1.

[0072] Optional, q is a positive integer.

[0073] For example, the width of the second pulse can be twice the width of the first trigger pulse, or the width of the second pulse can be 1.5 times the width of the first pulse.

[0074] In some alternative implementations, the width of the second pulse may be smaller than the width of the first pulse.

[0075] For example, the width of the second pulse can be half the width of the first pulse.

[0076] Optionally, the touch unit and pixel unit can be scanned and controlled in a time-division manner using a synchronization signal, thereby distinguishing the triggering of the pixel unit or the touch unit.

[0077] Based on the same or similar inventive concept as the above-mentioned driving method for touch display panels, embodiments of this application also provide a driving device for touch display panels.

[0078] Figure 3 This diagram illustrates the structure of a driving device for a touch display panel according to an embodiment of this application. The touch display panel may include multiple pixel units and multiple touch units; during the display of any frame of image, the touch display panel may include at least one display scanning stage and at least one touch scanning stage, and the display scanning stage and the touch scanning stage may be alternately configured; for example... Figure 3 As shown, the driving device 300 for the touch display panel may include:

[0079] The display driver module 310 is used to charge each row of pixel units at a first frequency for each frame of image during the display scanning phase, and to provide display scanning signals to the pixel units to drive the display units. The first frequency is greater than the second frequency of the touch display panel displaying the image.

[0080] The touch driver module 320 is used to provide touch scanning signals to the touch unit and receive touch detection signals from the touch unit during the touch scanning phase.

[0081] According to the driving device for the touch display panel provided in the embodiments of this application, the touch display panel may include multiple pixel units and multiple touch units. The touch display panel includes at least one display scanning stage and at least one touch scanning stage during the display of any frame of image. The display scanning stage and the touch scanning stage are alternately set. During the display scanning stage, for each frame of image, each row of pixel units is charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display. During the touch scanning stage, a touch scanning signal is provided to the touch units, and touch detection signals from the touch units are received. On the one hand, since the first frequency is greater than the touch display surface... The second frequency of the image display panel allows for shorter row charging time of the touch display panel while ensuring the charging time and power requirements of each pixel unit. This shortens the total duration of the display scanning phase. Since the duration of displaying one frame on the touch display panel remains constant, the total duration of the touch scanning phase is increased, thereby expanding the adjustable frequency range of the touch display panel's touch scanning phase. This improves the problem of the touch display panel not being able to adjust to the optimal touch state. On the other hand, by setting the display scanning phase and the touch scanning phase, display scanning and touch scanning are separated, ensuring that display scanning and touch scanning do not interfere with each other.

[0082] In some alternative implementations, the first frequency can be n times the second frequency, where n is a positive integer and n≥2.

[0083] In some alternative implementations, 0 < t ≤ 1 / (2F1) ms, where t is the total duration of the touch scanning phase and F1 is the second frequency.

[0084] In some alternative implementations, the frequency of the light emission control signal of the touch display panel can be equal to the first frequency.

[0085] In some alternative implementations, the frequency of the display scanning signal of the touch display panel can be equal to the first frequency.

[0086] In some optional implementations, the synchronization signal of the touch display panel includes a first pulse and a second pulse. The first pulse is used to indicate that the touch display panel enters the scanning display stage, and the second pulse is used to indicate that the touch display panel enters the touch scanning stage. The widths of the first pulse and the second pulse are different.

[0087] In some alternative implementations, the width of the second pulse may be greater than the width of the first pulse.

[0088] In some alternative implementations, the first frequency is 240 Hz.

[0089] The driving device for the touch display panel provided in this application embodiment has the beneficial effects of the driving method for the touch display panel provided in this application embodiment. For details, please refer to the specific description of the driving method for the touch display panel in the above embodiments. This embodiment will not repeat the description here.

[0090] Based on the same or similar inventive concept as the driving device of the above-mentioned touch display panel, this application embodiment also provides a touch display device.

[0091] Figure 4 This diagram illustrates the structure of a touch display device provided in an embodiment of this application. Figure 4 As shown, the touch display device 400 may include: a touch display panel 410 and a drive device 300 for the touch display panel;

[0092] The touch display panel 410 includes multiple pixel units (not shown) and multiple touch units (not shown);

[0093] The touch display panel driving device 300 is used to drive the touch display panel 410 and execute the touch display panel driving method of any of the above embodiments.

[0094] According to the touch display device provided in the embodiments of this application, the touch display panel may include multiple pixel units and multiple touch units. The touch display panel includes at least one display scanning stage and at least one touch scanning stage during the display of any frame of image. The display scanning stage and the touch scanning stage are alternately set. During the display scanning stage, for each frame of image, each row of pixel units is charged according to a first frequency, and a display scanning signal is provided to the pixel units to drive the display. During the touch scanning stage, a touch scanning signal is provided to the touch units, and touch detection signals from the touch units are received. On the one hand, since the first frequency is greater than the display frequency of the touch display panel... The second frequency of the image allows for a shorter row charging time of the touch display panel while ensuring the charging time and power requirements of each pixel unit. This shortens the total duration of the display scanning phase. Since the duration of displaying one frame on the touch display panel remains constant, the total duration of the touch scanning phase is increased, thereby expanding the adjustable frequency range of the touch display panel's touch scanning phase. This improves the problem of the touch display panel not being able to adjust to the optimal touch state. On the other hand, by setting the display scanning phase and the touch scanning phase, display scanning and touch scanning are separated, ensuring that display scanning and touch scanning do not interfere with each other.

[0095] The touch display device provided in this application has the beneficial effects of the touch display panel driving method provided in this application. For details, please refer to the specific description of the driving method of the touch display panel in the above embodiments. This embodiment will not repeat the description here.

[0096] Furthermore, in conjunction with the driving method of the touch display panel in the above embodiments, this application embodiment can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the driving methods of the touch display panel in the above embodiments.

[0097] The embodiments described above are not exhaustive, nor do they limit the application to the specific embodiments described herein. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A driving method of a touch display panel, comprising: The touch display panel includes multiple pixel units and multiple touch units; the touch display panel includes at least one display scanning stage and at least one touch scanning stage in the process of displaying any frame of image, and the display scanning stage and the touch scanning stage are alternately set; The driving method for the touch display panel includes: During the display scanning phase, for each frame of the image, the pixel units in each row are charged at a first frequency, and a display scanning signal is provided to the pixel units to drive the display of the pixel units. The first frequency is greater than the second frequency of the touch display panel displaying the image, so as to shorten the row charging time of the touch display panel and increase the adjustable frequency range of the touch scanning phase of the touch display panel. During the touch scanning phase, a touch scanning signal is provided to the touch unit, and a touch detection signal is received from the touch unit; The synchronization signal of the touch display panel includes a first pulse and a second pulse. The first pulse is used to indicate that the touch display panel enters the display scanning stage, and the second pulse is used to indicate that the touch display panel enters the touch scanning stage. The widths of the first pulse and the second pulse are different. The width of the second pulse is q times the width of the first pulse, where q is a positive number and q > 1. 2.The driving method of the touch display panel according to claim 1, wherein, The first frequency is n times the second frequency, where n is a positive integer and n≥2. 3.The driving method of the touch display panel according to claim 1, characterized in that, 0<t≤1 / (2F1)ms, where t is the total duration of the touch scanning phase and F1 is the second frequency. 4.The driving method of the touch display panel according to claim 1, characterized in that, The frequency of the light emission control signal of the touch display panel is equal to the first frequency.

5. The driving method for a touch display panel according to claim 1, characterized in that, The frequency of the display scanning signal of the touch display panel is equal to the first frequency. 6.The driving method of the touch display panel according to claim 1, characterized in that, The first frequency is 240Hz.

7. A driving device of a touch display panel, characterized in that, The touch display panel includes multiple pixel units and multiple touch units; the touch display panel includes at least one display scanning stage and at least one touch scanning stage in the process of displaying any frame of image, and the display scanning stage and the touch scanning stage are alternately set; The driving device for the touch display panel includes: The display driving module is used to charge each row of pixel units at a first frequency for each frame of the image during the display scanning phase, and provide a display scanning signal to the pixel units to drive the pixel units for display. The first frequency is greater than the second frequency of the touch display panel displaying the image, so as to shorten the row charging time of the touch display panel and increase the adjustable frequency range of the touch scanning phase of the touch display panel. A touch driver module is used to provide a touch scanning signal to the touch unit and receive a touch detection signal from the touch unit during the touch scanning phase. The synchronization signal of the touch display panel includes a first pulse and a second pulse. The first pulse is used to indicate that the touch display panel enters the display scanning stage, and the second pulse is used to indicate that the touch display panel enters the touch scanning stage. The widths of the first pulse and the second pulse are different. The width of the second pulse is q times the width of the first pulse, where q is a positive number and q > 1.

8. A touch display device, comprising: include: Touch display panel and touch display panel driving device; The touch display panel includes multiple pixel units and multiple touch units; The driving device of the touch display panel is used to drive the touch display panel and execute the driving method of the touch display panel according to any one of claims 1-6.

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