Touch control method and device and touch display equipment

Abstract

The invention provides a touch control method and device and touch display equipment, and relates to the field of display. The touch control method comprises the following steps: receiving a frame indication signal of the display device, wherein the frame indication signal is used for indicating a default frame frequency of the display device; a scanning driving signal of the display device is received, the scanning driving signal is used for indicating the refresh frequency of the display device, and the refresh frequency is dynamically adjusted according to operation of a user on the display device; according to the frame indication signal, acquiring the level state of the scanning driving signal for multiple times at a default frame frequency; and judging whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device or not according to the level states acquired for multiple times. According to the scheme, the touch control device does not need complex logic judgment, and whether the touch parameter adjustment of the touch control device is executed or not can be judged only by collecting the level state of the scanning driving signal frame by frame so as to reduce the power consumption of the touch control device. According to the scheme, the judgment response time is short, extra cost is avoided, and the touch power consumption can be quickly and effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and more specifically, to a touch control method, device and touch display device. Background Art

[0002] In today's era of increasing popularity of mobile devices, power consumption management of touch display technology is particularly important. In order to extend the use time of the device and improve the user experience, low-power touch display technology has emerged and has become an important direction for energy-saving innovation. In some conventional practices, the touch detection algorithm of the whole machine is generally used to detect the user's touch behavior. Through this touch detection algorithm, the touch display module can be quickly awakened when the user touches the screen, and maintain low power consumption in the non-touch state, thereby reducing unnecessary energy consumption. This method requires the development of a complex touch detection algorithm, which increases costs, and the response speed of touch detection is also slow, affecting the overall performance of the mobile device.

[0003] In view of this, how to provide a touch power consumption reduction technology solution with better performance is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a touch control method, device and touch display device, which can reduce touch power consumption.

[0005] In a first aspect, a touch control method is provided, comprising: receiving a frame indication signal of a display device, the frame indication signal being used to indicate a default frame frequency of the display device; receiving a scan drive signal of the display device, the scan drive signal being used to indicate a refresh frequency of the display device, the refresh frequency being dynamically adjusted according to a user's operation on the display device; acquiring a level state of the scan drive signal multiple times at a default frame frequency according to the frame indication signal; and determining whether to adjust a touch parameter of the touch device to reduce power consumption of the touch device according to the multiple acquired level states.

[0006] Through the technical solution of the embodiment of the present application, the display device and the touch device can be linked. In the display device, the scanning drive signal of its pixels can represent the refresh of the display device, and the refresh of the display device is dynamically adjusted according to the user operation. Therefore, the scanning drive signal can more accurately represent the user operation. The touch control device does not require complex logical judgment. It can determine whether there is a user operation behavior only by collecting the level state of the scanning drive signal frame by frame, and then determine whether to perform the touch parameter adjustment of the touch device to reduce the power consumption of the touch device. This solution has a short judgment response time and no additional cost, and can quickly and effectively reduce touch power consumption.

[0007] In some possible implementations, the scan driving signal includes: a frame start signal or a first-level output signal of a scan driving circuit of the display device.

[0008] In this embodiment, the pulse frequency of the frame start signal or the first-level output signal of the scan drive circuit can accurately indicate the refresh frequency of the display device, and the frame start signal or the first-level output signal can more accurately indicate the start time of the refresh frame, and the level state of the scan drive signal is collected at this time, and it is determined whether to adjust the touch parameters of the touch device, so that the touch device can be adjusted more timely to reduce the touch power consumption, achieving a better power consumption reduction effect. In addition, when the scan drive signal is a frame start signal, the frame start signal can be more conveniently connected to the touch control device, which is conducive to hardware implementation and reduces costs.

[0009] In some possible implementations, the above-mentioned determining whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device based on the level states collected for multiple times includes: in the case where, in the level states collected twice in succession, the previous level state is a valid level and the next level state is a reference level, adjusting the touch parameters of the touch device to reduce the power consumption of the touch device.

[0010] In some possible implementations, the touch control method further includes: when two consecutive collected level states are both valid levels or both are reference levels, maintaining the touch parameters of the touch device; when two consecutive collected level states are when the previous level state is the reference level and the next level state is the valid level, restoring the touch parameters of the touch device to default parameters.

[0011] Through the technical solutions of the above two implementation modes, the touch parameters of the touch device can be flexibly adjusted according to the level state of the scanning drive signal collected within two consecutive frames, so that the touch device can reduce the touch parameters when the display screen is not refreshed to reduce the power consumption of the touch device. The touch device can also use the default touch parameters when the display screen is refreshed to detect user operations in a timely manner, thereby comprehensively ensuring the performance of the entire equipment and the user experience.

[0012] In some possible implementations, the touch parameters include: a touch reporting rate and / or a touch acquisition rate; wherein the above-mentioned adjustment of the touch parameters of the touch device to reduce the power consumption of the touch device includes: reducing the touch reporting rate and / or the touch acquisition rate to reduce the power consumption of the touch device.

[0013] In some possible implementations, the frame indication signal is a positive pulse signal; wherein, the above-mentioned acquisition of the level state of the scanning drive signal multiple times at a default frame frequency according to the frame indication signal includes: acquiring the level state of the scanning drive signal at the falling edge moment of each positive pulse in the frame indication signal.

[0014] In some possible implementations, the frame indication signal includes: a system clock signal of the electronic device where the display device is located.

[0015] Through the technical solution of this implementation, the touch control device can directly use the system clock signal it receives as the frame indication signal of the display device, without introducing other additional interfaces and wiring to receive the relevant signals of the display device as the frame indication signal. This technical solution can simplify hardware implementation and reduce costs.

[0016] In a second aspect, a touch control device is provided, comprising: a first receiving unit, used to receive a frame indication signal of a display device, the frame indication signal is used to indicate a default frame frequency of the display device; a second receiving unit, used to receive a scan drive signal of the display device, the scan drive signal is used to indicate a refresh frequency of the display device, the refresh frequency is dynamically adjusted according to a user's operation on the display device; a signal acquisition unit, used to acquire a level state of the scan drive signal multiple times at a default frame frequency according to the frame indication signal; and a processing unit, used to determine whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device according to the multiple acquired level states.

[0017] In some possible implementations, the touch control device is a touch driver chip, which is used to receive a scan drive signal output by a display driver chip; the touch driver chip and the display driver chip are located on the same circuit board, and the scan drive signal output by the display driver chip is input into the touch driver chip through the wiring of the circuit board.

[0018] In some possible implementations, the touch control device is a touch-display integrated chip.

[0019] In a third aspect, a touch display device is provided, comprising: a touch device, a display device, a touch control device and a display control device; wherein the display control device is used to control the display device to display; the touch control device is used to execute the touch control method provided in the first aspect or any embodiment of the first aspect to control the touch parameters of the touch device according to the scanning drive signal of the display device.

[0020] In the technical solution provided in the embodiment of the present application, a touch control device linked to the display device is provided in the touch display device. The touch control device does not require complex logical judgment, and can determine whether there is a user operation behavior by simply collecting the level state of the scanning drive signal of the display device frame by frame, and then determine whether to perform touch parameter adjustment of the touch device to reduce the power consumption of the touch device. The solution has a short judgment response time and no additional cost, can quickly and effectively reduce touch power consumption, and is conducive to reducing the overall power consumption of the touch display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural block diagram of a touch display device applicable to the embodiment of the present application.

[0022] Figure 2 It is a schematic structural block diagram of a display screen provided in an embodiment of the present application.

[0023] Figure 3 It is a schematic circuit diagram of a pixel unit provided in an embodiment of the present application.

[0024] Figure 4 It is a schematic architecture diagram of a scan driving circuit provided in an embodiment of the present application.

[0025] Figure 5 It is a schematic flowchart of a touch control method provided in an embodiment of the present application.

[0026] Figure 6 It is a schematic waveform diagram of the frame indication signal and the scan drive signal provided in the embodiment of the present application.

[0027] Figure 7 It is a schematic flowchart of another touch control method provided in an embodiment of the present application.

[0028] Figure 8 and Fig. 9 Schematic diagram of two acquisition situations of the level state of the STV signal provided in the embodiment of the present application.

[0029] Fig.10 It is a schematic structural block diagram of a touch control device provided in an embodiment of the present application.

[0030] Fig.11 It is a schematic structural diagram of a touch display device provided in an embodiment of the present application.

[0031] Fig.12 It is a schematic structural block diagram of another touch display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0033] The present application relates to a touch display screen or a touch display device. The touch display screen is an electronic device that integrates a touch sensor and display technology, which allows a user to interact with the electronic device by directly touching the screen. In some specific implementations, the touch sensor may be covered on the display screen or embedded in the display screen. When the touch sensor is covered on the display screen, the touch sensor may be located in a touch panel (Touch Panel, TP), and the TP and the display screen are separate from each other and may be connected by a glue layer or the like. When the touch sensor is embedded in the display screen, the sensor unit may be integrated into the pixel layer of the display screen, without providing an additional touch layer. In this manner, the touch sensor and the display screen are an integrated structure.

[0034] In the present application, the touch display screen can be applied to a variety of fields and scenarios. As an example, the touch display screen can be applied to 3C electronic products of computers, communications and consumer electronics, including but not limited to televisions, mobile phones, computers, laptops, tablets, personal digital assistants (PDAs), car computers, wearable devices, gaming devices, photographing equipment, etc. The present application does not limit the specific type of electronic device in which the touch display screen is located.

[0035] In addition, the touch sensor involved in the present application may be a resistive, capacitive, infrared or acoustic wave type, etc. The display screen involved in the present application may be a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen, a quantum dot light-emitting diode (QLED) display screen, etc. The present application does not limit the specific types of touch sensors and display screens.

[0036] Figure 1 A schematic structural block diagram of a touch display device 100 applicable to an embodiment of the present application is shown.

[0037] like Figure 1 As shown, the touch display device 100 includes: a display module 110 , a touch module 120 , a display driving module 130 and a touch driving module 140 .

[0038] The display driver module 130 is used to drive and control the display module 110 to display. The display module 110 can be any type of display screen as described above, and the display driver module 130 can be, for example, a display driver integrated circuit (DDIC) or a display driver integrated chip.

[0039] The touch control driving module 140 is used to drive and control the touch control module 120 to detect user touch. The touch control module 120 includes a touch sensor array composed of a plurality of touch sensors, each of which can be any type of touch sensor described above, and the touch control module 120 can be a touch panel or a touch component integrated in a display screen. The touch control driving module 140 can be, for example, a touch control integrated circuit (Touch IC, TIC) or can also be called a touch control driving chip or a touch control chip.

[0040] Optionally, the touch driver module 140 and the display driver module 130 may be two separate modules, or may be integrated with each other. For example, the touch driver module 140 and the display driver module 130 are both integrated into a touch and display driver integration (TTDI) chip.

[0041] Optionally, the touch driving module 140 and the display driving module 130 can be connected to a main control of the electronic device to receive control signals and clock signals from the main control, thereby driving the display module 110 and the touch module 120 to perform corresponding display functions and touch functions.

[0042] Figure 2 FIG. 2 shows a schematic structural block diagram of a display screen 200 provided in an embodiment of the present application. Optionally, the display screen 200 may include the above Figure 1 The display module 110 and the display driving module 130 are shown.

[0043] like Figure 2 As shown, the display screen 200 includes: a pixel array 210, a scan driving circuit 220 and a data driving circuit 230. The pixel array 210 includes a plurality of pixel units 211, and the plurality of pixel units 211 can be arranged into N rows and M columns according to actual needs to form a display area of ​​the display screen 200 and present display effects of different pictures.

[0044] For an OLED display screen, each pixel unit 211 may include an independent light-emitting unit and a pixel circuit for controlling the light-emitting unit. The light-emitting unit may include organic light-emitting materials of three colors: red, green, and blue. The light-emitting materials are driven by current to emit light to form color pixels. The pixel circuit may include electrical components such as a switch tube and a capacitor. The state of the switch tube is controlled by a control signal, so that the light-emitting unit can be effectively driven.

[0045] For other types of display screens, each has its own light-emitting principle, but no matter which display screen it is, each pixel unit 211 has a pixel circuit to control the light emission of each pixel unit 211. The scanning drive circuit 220 and the data drive circuit 230 can be connected to each pixel unit 211 in the pixel array 210, so as to provide a control signal to the pixel circuit of each pixel unit. Specifically, for N rows and M columns of pixel units 211, the scanning drive circuit 220 can be connected to the N rows of pixel units 211 to control the opening and closing of the N rows of pixel units 211. The data drive circuit 230 can be connected to the M columns of pixel units 211 to provide display data to the M columns of pixel units. It can be understood that the scanning drive circuit 220 can also be called a gate drive circuit or a row drive circuit, and the data drive circuit 230 can also be called a source drive circuit or a column drive circuit.

[0046] As an example, Figure 3 A schematic circuit diagram of a pixel unit 211 provided in an embodiment of the present application is shown.

[0047] like Figure 3 As shown, the pixel unit 211 includes 7 switch tubes T1 to T7, 3 capacitors Cst, Cse, Csd and a light-emitting unit E1. Among them, the gates of the switch tubes T2, T4 and T7 receive the scan signal SCAN[n], the gates of the switch tubes T5 and T6 receive the light-emitting control signal EM[n], the source of the switch tube T4 receives the data signal DATA[m], the gate of T1 receives the reset control signal Reset_P[n], and the source of the switch tube T7 and the source of the switch tube T1 are connected to the reset power supply Vinit.

[0048] The scan signal SCAN[n] can control the on and off of the switch tube T2, thereby affecting whether the data signal DATA[m] is written into the circuit to control the light-emitting state of the light-emitting unit E1. The on and off of the switch tube T2 can be determined by the scan signal SCAN[n]. The on and off of T2 can directly represent whether the display screen is refreshing or switching, and whether the user is using the mobile phone.

[0049] The scan signal SCAN[n] may be provided by a scan driving circuit 220 . Specifically, the scan driving circuit 220 may include a plurality of cascade driving units. Figure 4 A schematic structural diagram of the scan driving circuit 220 is shown.

[0050] like Figure 4 As shown, the scan driving circuit 220 includes a plurality of cascaded driving units 221, wherein the input signal of the first-stage driving unit 221 includes a start of video frame (STV) signal, and the output signal SCAN[1] of the first-stage driving unit 221 can drive the first row of pixel units 211 of the display device, and can also be used as the input signal of the second-stage driving unit 221. Similarly, the scan driving circuit 220 may include at least N cascaded driving units 221, and the output signal SCAN[N] of the Nth stage driving unit 221 can drive the Nth row of pixel units 211 of the display device.

[0051] Understandably, Figure 4 Only some signals in the scan driving circuit 220 are illustrated. In addition to STV, the scan driving circuit 220 also needs other signals such as clock signal, power signal, reset signal, etc. The technical solution of the scan driving circuit formed by cascading multiple driving units 221 can refer to the specific description of the relevant technology, and will not be repeated here.

[0052] Optionally, the scan driving circuit 220 may be a gate driver or a gate driver IC independent of the display panel 201. Figure 2 As shown, the scan driving circuit 220 can also be integrated into the display panel 201. The scan driving circuit 220 can be called a substrate gate driving circuit (Gate On Array, GOA). The GOA circuit can be prepared on a transparent substrate synchronously with the pixel circuit of the pixel array 210, thereby simplifying the manufacturing process of the display screen 200.

[0053] Optionally, the data driving circuit 230 may be a source driver or a source driver chip (Source Driver IC), and the data driving circuit 230 may be separately provided from the display panel 201 where the pixel array 210 is located. The display panel 201 may have different structures according to different types of display screens 200, but generally speaking, the substrate of the display panel is a transparent substrate such as glass or plastic, and the pixel circuit of the pixel array 210 may be formed on the substrate through semiconductor processes, and then the light-emitting unit of the pixel array 210 may be formed in combination with other components, so as to form the main part of the display screen 200, the display panel 201. The specific structure of the display panel 201 may refer to the specific description of the related art, and will not be described in detail here.

[0054] Based on the above Figures 1 to 4 The touch display device and the related architecture of the display screen are shown. Figure 5 A schematic flowchart of a touch control method 300 provided in an embodiment of the present application is shown.

[0055] like Figure 5 As shown, the touch control method 300 includes the following steps.

[0056] S310: Receive a frame indication signal from a display device.

[0057] S320: Receive a scan driving signal from a display device.

[0058] S330: According to the frame indication signal, the level state of the scan driving signal is collected multiple times at a default frame frequency.

[0059] S340: Determine whether to adjust touch parameters of the touch control device to reduce power consumption of the touch control device according to the level states of the scan drive signals collected multiple times.

[0060] Optionally, the method 300 and other touch control methods described below may be applicable to a touch control device, such as the one described above. Figure 1 The touch control driving module 140 shown in the figure may be a TIC, for example. In other words, the touch control device (such as TIC) may be used as an execution subject to execute various touch control methods provided in the present application. For ease of explanation, the execution subject of each method below is referred to as TIC.

[0061] The TIC may generally include an input interface for receiving various control signals and data signals transmitted from the outside. In step S310 and step S320, the TIC may receive a frame indication signal and a scan drive signal of a display device through different input interfaces. The display device may be, for example, Figure 1 The display module 110 shown in FIG.

[0062] In the embodiment of the present application, the frame indication signal is used to indicate a default frame frequency of the display device. Figure 6 Part (a) in the figure shows a schematic waveform diagram of a frame indication signal provided by an embodiment of the present application. As shown in the figure, the frame indication signal is a pulse signal, and its pulse period is the time for the display screen to display a frame of image by default, and the pulse frequency is the default frame frequency of the display screen. For example, the default frame frequency can be 60Hz, 120Hz, 240Hz, etc. The present application does not limit the specific value of the default frame frequency. As an example, Figure 6 The frame indication signal shown in the figure may be a positive pulse signal with a high level being effective, or, in other examples, the frame indication signal may also be a negative pulse signal with a low level being effective.

[0063] In the embodiment of the present application, the scan drive signal is a signal related to the scan drive circuit of the display device. The scan drive circuit may be Figure 2 The scan drive circuit 220 shown in . The scan drive signal can be an input signal or an output signal of the scan drive circuit, which can be used to characterize the row scanning and refreshing conditions of the display device. In other words, the scan drive signal of the embodiment of the present application can be used to indicate the refresh frequency of the display device, and in actual application, the refresh frequency is dynamically adjusted according to the user's operation on the display device.

[0064] Optionally, in some embodiments, the scan driving signal may include an STV signal of a scan driving circuit, where the STV signal is an input signal of the scan driving circuit. Figure 6 Part (b) of the figure shows a schematic waveform diagram of an STV signal provided in an embodiment of the present application. As an example, the STV signal shown in the figure is a high-level valid positive pulse signal, or, in other examples, the STV signal can also be a low-level valid negative pulse signal.

[0065] Optionally, in some other implementations, the scan driving signal may include a first-stage output signal SCAN[1] of the scan driving circuit, where the first-stage output signal SCAN[1] is an output signal of a first-stage driving unit in the scan driving circuit. Figure 6 Part (c) shows a schematic waveform diagram of SCAN[1] provided in an embodiment of the present application. As shown in the figure, SCAN[1] is also a pulse signal. The pulse frequency of SCAN[1] can be the same as the pulse frequency of STV.

[0066] When pulses appear in STV and SCAN[1], it means that the display device is refreshed, and the scan drive circuit drives the display device to restart from the first row of pixel units, and then turns on each subsequent row of pixel units in sequence. In the present application, when pulses appear in STV and SCAN[1], the current display device can be in a "refresh frame" state within a subsequent frame time, and when STV and SCAN[1] maintain a reference level, the current display device can be in a "hold frame" state within a subsequent frame time.

[0067] The pulse frequency of STV can be adaptively adjusted by the display driver module. Specifically, the display driver module (such as DDIC) can adjust the refresh frequency of the display screen according to the user behavior reported by the whole machine, that is, adjust the pulse frequency of STV. When the pulse frequency of STV changes, the pulse frequency of SCAN[1] also changes accordingly.

[0068] Therefore, in the embodiment of the present application, the pulse frequency of the scan drive signal (including STV or SACN[1]) can accurately indicate the refresh frequency of the display device, and the refresh frequency can be adaptively and dynamically adjusted according to the user's operation on the display device, that is, when there is a user operation, the refresh frequency can be maintained at the default frame frequency, and conversely, when there is no user operation, the refresh frequency is lower than the default frame frequency. By reducing the refresh frequency, the power consumption of the display device can be reduced.

[0069] Return to see Figure 5 In step S330, the level state of the scan drive signal is collected multiple times at a default frame frequency according to the frame indication signal. In some implementations, the level state of the scan drive signal may be collected at the pulse edge moment or pulse moment of each pulse in the frame indication signal. In this implementation, a signal detection circuit and a signal acquisition circuit may be provided inside the TIC. The signal detection circuit may detect the pulse in the frame indication signal and trigger the acquisition circuit to acquire the level state of the scan drive signal at the pulse edge moment or pulse moment.

[0070] Alternatively, in some other implementations, the level state of the scan drive signal may be collected after a preset time after each pulse in the frame indication signal.

[0071] In step S340, it is determined whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device according to the level states of the scan drive signal collected multiple times. Specifically, after collecting multiple level states of the scan drive signal at the default frame frequency, it is determined whether the display device is refreshed according to the multiple level states, and thus it is determined whether to adjust the touch parameters of the touch device according to the refresh state of the display device. The touch device may be Figure 1 The touch control module 120 shown in FIG. The touch control parameter will affect the operating power consumption of the touch control device. As an example but not a limitation, the touch control parameter may include at least one of the following parameters: touch reporting rate, touch acquisition rate, touch voltage, etc.

[0072] Through the technical solution of the embodiment of the present application, the display device and the touch device can be linked. In the display device, the scanning drive signal of its pixels can represent the refresh of the display device, and the refresh of the display device is dynamically adjusted according to the user operation. Therefore, the scanning drive signal can more accurately represent the user operation. The touch control device does not require complex logical judgment. It can only collect the level state of the scanning drive signal frame by frame to determine whether there is a user operation behavior, and then determine whether to perform the touch parameter adjustment of the touch device to reduce the power consumption of the touch device. This solution has a short judgment response time and no additional cost, and can quickly and effectively reduce touch power consumption.

[0073] Figure 7A schematic flowchart of another touch control method 500 provided in an embodiment of the present application is shown.

[0074] like Figure 7 As shown, the touch control method 500 includes the following steps.

[0075] S510: Receive a frame indication signal from a display device.

[0076] S520: Receive a scan driving signal from a display device.

[0077] S530: According to the frame indication signal, the level state of the scan driving signal is collected multiple times at a default frame frequency.

[0078] S541: When the level states collected twice in succession are both valid levels or reference levels, the touch parameters of the touch device are maintained.

[0079] S542: In the case where, in two consecutive collected level states, a previous level state is a valid level and a subsequent level state is a reference level, adjusting touch parameters of the touch control device to reduce power consumption of the touch control device.

[0080] S543: In the case where, in two consecutive collected level states, the previous level state is a reference level and the next level state is a valid level, the touch parameters of the touch device are restored to default parameters.

[0081] In the embodiment of the present application, the specific implementation of steps S510 to S530 can be found in the above Figure 5 The relevant description of S310 to S330 in the embodiment shown. Step S542 can be Figure 5 An implementation of step S340 in the illustrated embodiment.

[0082] In steps S541 to S543 , the TIC may determine whether to adjust the touch parameters of the touch device according to the level states of the scan driving signals collected twice in succession.

[0083] Take the scanning driving signal as STV signal as an example, Figure 8 and Fig. 9 Two acquisition situations of the level state of the STV signal are shown. In the STV signal and the frame indication signal shown in the figure, the effective level of the pulse is a high level and the reference level is a low level.

[0084] like Figure 8 and Fig. 9 As shown, TIC can be 1 ,t 2 and t 3 The level state of the STV signal is collected at each time. 1 ,t2 and t 3 The time is the falling edge time of each positive pulse in the frame indication signal. This falling edge time is not only convenient for the implementation of the internal signal detection circuit of TIC, but also can more accurately represent the start time of each frame. The level state of the scan drive signal collected at this time can also more accurately represent whether the current frame is refreshed, which is conducive to improving the effectiveness of subsequent touch parameter adjustment.

[0085] exist Figure 8 In the embodiment shown, TIC is 1 and t 2 In the level state of the STV signal collected twice in succession, the first time is high level and the second time is low level, then TIC can be 2 Adjust the touch parameters of the touch device at all times, such as reducing the touch reporting rate and / or touch acquisition rate of the touch device. 2 and t 3 If the level states of the STV signals collected twice in succession are both low level, the TIC can continue to maintain the current low touch reporting rate and / or touch collection rate.

[0086] exist Fig. 9 In the embodiment shown, TIC is 1 and t 2 The level status of the STV signal collected twice in succession and the TIC at t 2 and t 3 The level states of the STV signals collected twice in succession are both high level, so the TIC can maintain the current touch parameters, for example, can maintain the current default touch reporting rate and / or touch collection rate.

[0087] In some other cases, TIC is 1 and t 2 In the level state of the STV signal collected twice in succession, the first time is low level and the second time is high level, then TIC can also be 2 The touch parameters of the touch device are adjusted constantly, for example, the touch reporting rate and / or the touch acquisition rate of the touch device are restored from a currently lower adjustment value to a higher default value.

[0088] Through the technical solution of the embodiment of the present application, TIC can flexibly adjust the touch parameters of the touch device according to the level state of the scanning drive signal collected within two consecutive frames, so that the touch device can reduce the touch parameters when the display screen is not refreshed to reduce the power consumption of the touch device, and can also enable the touch device to use the default touch parameters when the display screen is refreshed to detect user operations in a timely manner, thereby comprehensively ensuring the performance of the entire equipment and user experience.

[0089] In any of the above embodiments, the frame indication signal may include: a system clock signal of the electronic device in which the display device is located. In some related technologies, the system clock signal may also be referred to as a TE signal. The system clock signal may be generated by the main control of the electronic device and sent to each component in the electronic device to ensure the accuracy and speed of data transmission between the main control and each component, and may provide a reference benchmark for data transmission between the various components.

[0090] In some embodiments of the present application, the system clock signal may be input to the touch control device and the display control device as a clock reference signal for both. In this case, the display control device may generate display-related clock signals such as a pixel clock signal, a horizontal synchronization (HSync) signal, and a vertical synchronization (VSync) signal according to the system clock signal. The clock frequency of the system clock signal may be the same as the default frame frequency of the display device.

[0091] After receiving the system clock signal, the touch control device (eg, TIC) can not only use the system clock signal to generate touch control related control signals, but also use the system clock signal as a frame indication signal of the display device to determine whether the display device is refreshed.

[0092] Through the technical solution of this implementation, the TIC can directly use the system clock signal it receives as the frame indication signal of the display device without introducing other additional interfaces and wiring to receive the relevant signals of the display device as the frame indication signal. This technical solution can simplify hardware implementation and reduce costs.

[0093] Combination of the above Figures 5 to 9 , illustrates the method embodiment provided by the present application, and the following is combined with Figures 10 to 12 , illustrating the device embodiment provided by the present application. It is understandable that each unit in the device embodiment can be used to implement each step of the above method implementation respectively, and the specific function implementation of each unit can refer to the relevant description of the above method embodiment, and the repeated parts will not be repeated in detail.

[0094] Fig.10 A schematic structural block diagram of a touch control device 800 provided in an embodiment of the present application is shown.

[0095] like Fig.10 As shown, the touch control device 800 includes: a first receiving unit 810 , a second receiving unit 820 , a signal acquisition unit 830 and a processing unit 840 .

[0096] Among them, the first receiving unit 810 is used to receive a frame indication signal of the display device, and the frame indication signal is used to indicate the default frame frequency of the display device. The second receiving unit 820 is used to receive a scan drive signal of the display device, and the scan drive signal is used to indicate the refresh frequency of the display device, and the refresh frequency is dynamically adjusted according to the user's operation on the display device. The signal acquisition unit 830 is used to collect the level state of the scan drive signal at the default frame frequency multiple times according to the frame indication signal. The processing unit 840 is used to determine whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device according to the level states collected multiple times.

[0097] Optionally, the touch control device 800 may be a touch driver chip, and the first receiving unit 810 and the second receiving unit 820 may be a first receiving port and a second receiving port of the touch driver chip. The signal acquisition unit 820 may include a signal acquisition circuit for signal monitoring and signal acquisition. The processing unit 840 may be a processor in the touch driver chip, which has certain signal processing functions.

[0098] In some possible implementations, the scan driving signal includes: a frame start signal of a scan driving circuit of the display device or a first-level output signal of the scan driving circuit of the display device.

[0099] In some possible implementations, the processing unit 840 may be used to adjust touch parameters of the touch device to reduce power consumption of the touch device when the first level state is a valid level and the second level state is a reference level in two consecutive collected level states.

[0100] In some possible implementations, the processing unit 840 may also be used to: maintain the touch parameters of the touch device when two consecutive collected level states are both valid levels or both are reference levels; and restore the touch parameters of the touch device to default parameters when two consecutive collected level states have a previous level state being a reference level and a subsequent level state being a valid level.

[0101] In some possible implementations, the above touch parameters include: a touch reporting rate and a touch acquisition rate; the processing unit 840 may be used to: reduce the touch reporting rate and / or the touch acquisition rate to reduce the power consumption of the touch device.

[0102] In some possible implementations, the frame indication signal is a positive pulse signal; the signal acquisition unit 830 is used to: acquire the level state of the scan drive signal at the falling edge moment of each positive pulse in the frame indication signal.

[0103] In some possible implementations, the frame indication signal includes: a system clock signal of the electronic device where the display device is located.

[0104] Fig.11 A schematic structural diagram of a touch display device 900 provided in an embodiment of the present application is shown.

[0105] like Fig.11 As shown, the touch display device 900 includes: a touch display screen 910 , a display driver chip 920 , a touch driver chip 930 and a circuit board 940 .

[0106] The display driver chip 920 can output a scan drive signal, such as an STV signal, to the touch display screen 910 through a first wire 921. The display driver chip 920 and the touch driver chip 930 can be disposed on a circuit board 940, and the circuit board 940 includes but is not limited to a flexible printed circuit (Flexible Printed Circuit, FPC). The scan drive signal output by the display driver chip 920 can be input to the touch driver chip 930 through a second wire 931 on the circuit board 940.

[0107] exist Fig.11 In the illustrated embodiment, the display driver chip 920 and the touch driver chip 930 are two separate chips. In some alternative embodiments, the display driver chip 920 and the touch driver chip 930 may also be integrated into one, i.e., a touch-display integrated chip. In this embodiment, the display driver chip 920 may input its scanning drive signal to the touch driver chip 930 through the wiring inside the chip.

[0108] Fig.12 A schematic structural block diagram of another touch display device 1000 provided in an embodiment of the present application is shown.

[0109] like Fig.12 As shown, the touch display device 1000 includes: a touch device 1010, a display device 1020, a touch control device 1030 and a display control device 1040. The display control device 1040 is used to drive the display device 1020 to display. The touch control device 1030 is used to execute the touch control method provided in any of the above embodiments to control the touch parameters of the touch device 1010 according to the scan drive signal of the display device 1020.

[0110] The above-mentioned touch display device 900 or touch display device 1000 can be various types of devices such as a mobile phone, a computer, a wearable device, a gaming device, a photographing device, etc.

[0111] The related schemes of the touch control device 1010, the display device 1020, the touch control device 1030 and the display control device 1040 can be found in the above Figure 1 The touch control module 120 , the display module 110 , the touch control driving module 140 and the display driving module 130 are introduced in detail.

[0112] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0113] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0114] In the method embodiments provided in the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0115] In the various embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0116] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0118] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0119] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A touch control method, characterized in that: include: receiving a frame indication signal of a display device, wherein the frame indication signal is used to indicate a default frame frequency of the display device; receiving a scan drive signal of the display device, wherein the scan drive signal is used to indicate a refresh frequency of the display device, and the refresh frequency is dynamically adjusted according to a user's operation on the display device; According to the frame indication signal, collecting the level state of the scan drive signal multiple times at the default frame frequency; According to the level states collected for multiple times, it is determined whether to adjust the touch parameters of the touch control device to reduce the power consumption of the touch control device.

2. The touch control method according to claim 1, characterized in that: The scan driving signal includes: a frame start signal of a scan driving circuit of the display device.

3. The touch control method according to claim 1, characterized in that: The scan driving signal includes: a first-stage output signal of a scan driving circuit of the display device.

4. The touch control method according to any one of claims 1 to 3, characterized in that: The step of determining whether to adjust the touch parameters of the touch control device to reduce the power consumption of the touch control device according to the level states collected multiple times includes: In the case where, in the level states collected twice continuously, a previous level state is a valid level and a subsequent level state is a reference level, the touch parameters of the touch control device are adjusted to reduce the power consumption of the touch control device.

5. The touch control method according to claim 4, characterized in that: The touch control method further includes: When the level states acquired twice in succession are both valid levels or both reference levels, maintaining the touch parameters of the touch control device; In the case where, in the level states collected twice continuously, the previous level state is a reference level and the next level state is a valid level, the touch parameters of the touch control device are restored to default parameters.

6. The touch control method according to claim 4, characterized in that: The touch parameters include: touch reporting rate and / or touch acquisition rate; The step of adjusting the touch parameters of the touch device to reduce the power consumption of the touch device includes: The touch reporting rate and / or the touch acquisition rate are reduced to reduce the power consumption of the touch control device.

7. The touch control method according to any one of claims 1 to 3, characterized in that: The frame indication signal is a positive pulse signal; Wherein, the step of acquiring the level state of the scan drive signal multiple times at the default frame frequency according to the frame indication signal includes: At the falling edge of each positive pulse in the frame indication signal, the level state of the scan drive signal is collected.

8. The touch control method according to any one of claims 1 to 3, characterized in that: The frame indication signal includes: a system clock signal of the electronic device where the display device is located.

9. A touch control device, characterized in that: include: A first receiving unit, configured to receive a frame indication signal of a display device, wherein the frame indication signal is used to indicate a default frame frequency of the display device; A second receiving unit, configured to receive a scan drive signal of the display device, wherein the scan drive signal is used to indicate a refresh frequency of the display device, and the refresh frequency is dynamically adjusted according to a user's operation on the display device; A signal acquisition unit, configured to acquire the level state of the scan drive signal multiple times at the default frame frequency according to the frame indication signal; The processing unit is used to determine whether to adjust the touch parameters of the touch device to reduce the power consumption of the touch device according to the level states collected multiple times.

10. The touch control device according to claim 9, characterized in that: The touch control device is a touch driving chip, and the touch driving chip is used to receive the scanning driving signal output by the display driving chip; The touch control driving chip and the display driving chip are located on the same circuit board, and the scan driving signal output by the display driving chip is input into the touch control driving chip through the wiring of the circuit board.

11. The touch control device according to claim 9, characterized in that: The touch control device is a touch-display integrated chip.

12. A touch display device, characterized in that: include: Touch device, display device, touch control device and display control device; Wherein, the display control device is used to control the display device to display; The touch control device is used to execute the touch control method according to any one of claims 1 to 8 to control the touch parameters of the touch control device according to the scan driving signal of the display device.

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