A touch control method and a touch control system

Abstract

A touch control method and a touch control system, wherein the method comprises: a stylus pen detects contact with a touch panel, and after detecting contact with the touch panel, a built-in excitation source is used to drive the touch panel to generate a preset elastic wave signal at the contact position; the touch panel detects the elastic wave signal through a set elastic wave sensor, and implements a touch control function according to the detected elastic wave signal.

Description

Technical Field

[0001] The present invention relates to touch technology, and in particular to a touch method and a touch system. Background Art

[0002] When the touch pen comes into contact with the touch panel, the touch panel generates an elastic wave signal due to being touched; the touch panel implements a touch function according to the elastic wave signal.

[0003] Since the characteristics of the elastic wave signal are related to the material of the stylus, the characteristics of the elastic wave signal generated by the stylus of the same material in contact with the touch panel are almost the same, and thus the touch functions that can be achieved based on the elastic wave signal are basically the same. If different touch functions are to be achieved, stylus pens of different materials need to be in contact with the touch panel, but the materials used to make styluses on the market are very limited, so the touch functions that can be achieved are also limited. Summary of the invention

[0004] The present application provides a touch control method and a touch control system, which expand the types of touch control functions that can be realized.

[0005] The touch control method provided by the present application includes:

[0006] The stylus detects contact with the touch panel, and after detecting contact with the touch panel, drives the touch panel to generate a preset elastic wave signal at the contact position through a built-in excitation source;

[0007] The touch panel detects elastic wave signals through the provided elastic wave sensors, and implements a touch function according to the detected elastic wave signals.

[0008] Optionally, the step of driving the touch panel to generate a preset elastic wave signal at the contact position by means of a built-in excitation source comprises: applying an excitation signal to the excitation source, wherein the excitation signal comprises a basic excitation wave and a superimposed excitation wave, so as to drive the touch panel to generate an elastic wave signal comprising a basic elastic wave and a superimposed elastic wave at the contact position;

[0009] The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the superimposed elastic wave contained in the elastic wave signal.

[0010] Optionally, the step of driving the touch panel to generate a preset elastic wave signal at the contact position by using a built-in excitation source comprises: applying an excitation signal to the excitation source, wherein the excitation signal comprises a basic excitation wave and a following excitation wave following the basic excitation wave, so as to drive the touch panel to generate an elastic wave signal comprising the basic elastic wave and the following elastic wave at the contact position;

[0011] The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the following elastic wave contained in the elastic wave signal.

[0012] Optionally, applying an excitation signal to the excitation source includes: applying an excitation signal that matches the currently set touch input instruction to the excitation source, wherein different excitation signals matching different touch input instructions contain the same basic excitation wave and different superimposed excitation waves, or contain the same basic excitation wave and different follow-up excitation waves.

[0013] Optionally, the implementing a touch function according to the detected elastic wave signal includes:

[0014] Positioning the contact track according to the basic elastic wave;

[0015] A touch input instruction is determined according to the superimposed elastic wave or the following elastic wave, and a touch function corresponding to a preset touch input instruction is implemented according to the determined touch input instruction.

[0016] Optionally, driving the touch panel to generate a preset elastic wave signal at the contact position through a built-in excitation source includes: applying an excitation signal to the excitation source, wherein the excitation signal is a basic excitation wave to drive the touch panel to generate the elastic wave signal at the contact position.

[0017] Optionally, applying an excitation signal to the excitation source includes: applying a basic excitation wave that matches the currently set touch input instruction to the excitation source, wherein different touch input instructions match different basic excitation waves, and the different basic excitation waves refer to at least one of the frequency, amplitude, duty cycle and beam duration of the waveform being different.

[0018] Optionally, the implementing a touch function according to the detected elastic wave signal includes:

[0019] Positioning the contact track according to the basic elastic wave;

[0020] Determining a touch input instruction according to the basic elastic wave;

[0021] A touch function corresponding to the preset touch input instruction is implemented according to the determined touch input instruction.

[0022] Optionally, the method further includes:

[0023] The contact track is colored according to the correspondence between the touch input command and the color.

[0024] Optionally, there are multiple styluses;

[0025] The method further comprises:

[0026] Performing time synchronization on the excitation sources of the multiple styluses to determine the timing for the multiple styluses to apply excitation signals to their respective excitation sources;

[0027] Different styluses apply excitation signals to respective excitation sources at determined times;

[0028] The touch panel detects elastic wave signals through the provided elastic wave sensor, and implements a touch function according to the detected elastic wave signals, including:

[0029] The touch panel determines the stylus pen corresponding to the elastic wave signal according to the timing of the detected elastic wave signal, and implements the corresponding touch function of the stylus pen according to the detected elastic wave signal.

[0030] Optionally, the contact between the stylus pen and the touch panel includes: detecting the strength of a force signal according to a built-in pressure detection element; when the strength of the force signal is detected to be greater than a preset value, determining that the stylus pen is in contact with the touch panel;

[0031] The method further comprises:

[0032] After detecting the elastic wave signal, the touch panel further determines whether the detected elastic wave signal meets a preset condition before implementing the touch function according to the elastic wave signal. If not, it is determined to be a false touch.

[0033] Optionally, the excitation source and the pressure detection element are the same piezoelectric element;

[0034] The stylus detects contact with the touch panel and drives the touch panel to generate a preset elastic wave signal at the contact position, including:

[0035] Controlling the piezoelectric element to detect the strength of the force signal, and when the strength of the force signal is greater than a set threshold, applying an excitation signal to the piezoelectric element to drive the touch panel to generate a preset elastic wave signal at the contact position;

[0036] After applying an excitation signal to the piezoelectric element, a waiting time is entered, during which the piezoelectric element is controlled to detect the strength of the force signal, and when the strength of the force signal is less than or equal to a set threshold, the application of the excitation signal to the piezoelectric element is terminated;

[0037] Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and during the waiting time, the piezoelectric element is controlled to detect the strength of the force signal. When the strength of the force signal is less than or equal to a set threshold, a waiting time is added to continue detecting the force signal. If the strength of the force signal is detected to be less than or equal to the set threshold for a preset number of consecutive waiting times, the application of the excitation signal to the piezoelectric element is terminated;

[0038] Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and the piezoelectric element is controlled to detect the strength of the force signal during the waiting time. When the force strength is less than or equal to a set threshold, an excitation signal is continued to be applied to the piezoelectric element after the waiting time ends, and then the next waiting time is entered. If the force signal strength is detected to be less than or equal to the set threshold for a consecutive preset number of waiting times, the application of the excitation signal to the piezoelectric element is stopped.

[0039] The touch control system provided in the embodiment of the present application includes: a touch pen, a touch panel, and an elastic wave sensor arranged on the touch panel;

[0040] The stylus pen comprises:

[0041] An excitation source module; configured to emit an excitation signal;

[0042] A contact detection module, configured to detect contact with the touch panel and notify the control module after detecting the contact;

[0043] A control module, configured to control the excitation source to emit an excitation signal according to any of the above methods after receiving the contact notification from the contact detection module;

[0044] An excitation element, connected to the excitation source module, configured to generate a preset elastic wave signal under the action of the excitation signal;

[0045] The elastic wave sensor is configured to receive an elastic wave signal and send the received elastic wave signal to a main control module in the touch panel;

[0046] The touch panel comprises:

[0047] The main control module is configured to detect elastic wave signals according to any of the above methods, and implement a touch function according to the detected elastic wave signals.

[0048] In the technical solution recorded in the present application, when the stylus pen comes into contact with the touch panel, the stylus pen itself can drive the touch panel to generate an elastic wave signal through a built-in excitation source. Since the generated elastic wave signal is affected by the excitation source, and the excitation source can generate multiple excitation signals, the characteristics of the generated elastic wave signal break through the limitation of the stylus pen material; the touch panel realizes the touch function according to the detected elastic wave signal. Since there can be multiple elastic wave signals detected, there can be multiple touch functions that can be realized, thereby expanding the types of touch functions that can be realized.

[0049] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0051] Figure 1 A flow chart of a touch control method provided in an embodiment of the present application;

[0052] Figure 2 A schematic diagram of an excitation signal including a basic excitation wave and a superimposed excitation wave provided in an embodiment of the present application;

[0053] Figure 3 A schematic diagram of an excitation signal including a basic excitation wave and a follow-up excitation wave provided in an embodiment of the present application;

[0054] Figure 4 A schematic diagram of another excitation signal including a basic excitation wave and a superimposed excitation wave provided in an embodiment of the present application;

[0055] Figure 5 A schematic diagram of two different excitation signals matching two different touch input instructions provided in an embodiment of the present application;

[0056] Figure 6 A diagram showing the composition of a touch control system according to an embodiment of the present application. DETAILED DESCRIPTION

[0057] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0058] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0059] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0060] The embodiment of the present invention provides a touch control method, such as Figure 1 As shown, the method includes:

[0061] Step S101: the stylus detects contact with the touch panel. After detecting contact with the touch panel, the touch panel is driven by a built-in excitation source to generate a preset elastic wave signal at the contact position.

[0062] In step S102, the touch panel detects elastic wave signals through the provided elastic wave sensors, and implements a touch function according to the detected elastic wave signals.

[0063] In the technical solution recorded in the embodiment of the present application, when the stylus pen comes into contact with the touch panel, the stylus pen itself can drive the touch panel to generate an elastic wave signal through a built-in excitation source. Since the generated elastic wave signal is affected by the excitation source, and the excitation source can generate multiple excitation signals, the characteristics of the generated elastic wave signal break through the limitation of the stylus pen material; the touch panel realizes the touch function according to the detected elastic wave signal. Since there can be multiple types of elastic wave signals detected, there can be multiple types of touch functions that can be realized, thereby expanding the types of touch functions that can be realized.

[0064] In an exemplary embodiment, the stylus drives the touch panel to generate a preset elastic wave signal at a contact position through a built-in excitation source, including: applying an excitation signal to the excitation source, the excitation signal including a basic excitation wave and a superimposed excitation wave, so as to drive the touch panel to generate an elastic wave signal including a basic elastic wave and a superimposed elastic wave at the contact position;

[0065] The touch panel detects elastic wave signals through an elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the superimposed elastic wave contained in the elastic wave signal. The frequency of the basic elastic wave may be the same as the frequency of the basic excitation wave, and the frequency of the superimposed elastic wave may be the same as the frequency of the superimposed excitation wave; or the frequency of the basic elastic wave is obtained from the frequency of the basic excitation wave through a set transformation relationship, and the frequency of the superimposed elastic wave is obtained from the frequency of the superimposed excitation wave through a set transformation relationship.

[0066] Figure 2 A schematic diagram of an excitation signal including a basic excitation wave and a superimposed excitation wave is given. Figure 2 The basic excitation wave is a triangular wave with a frequency of f1, and the superimposed excitation wave is a triangular wave with a frequency of f2, where f2>f1, and the amplitude of the superimposed excitation wave is smaller than the amplitude of the basic excitation wave. Figure 2 In addition to the given triangular wave, the basic excitation wave and the superimposed excitation wave can also be other forms of waveforms such as square waves and sine waves.

[0067] After the touch panel collects the elastic wave signal through the elastic wave sensor, it can perform spectrum analysis on the elastic wave signal to distinguish between the basic elastic wave and the superimposed elastic wave.

[0068] In an exemplary embodiment, the stylus drives the touch panel to generate a preset elastic wave signal at the contact position through a built-in excitation source, and may also include: applying an excitation signal to the excitation source, the excitation signal including a basic excitation wave and a following excitation wave following the basic excitation wave, so as to drive the touch panel to generate an elastic wave signal including the basic elastic wave and the following elastic wave at the contact position;

[0069] The touch panel detects elastic wave signals through an elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the following elastic wave contained in the elastic wave signal. The frequency of the basic elastic wave may be the same as the frequency of the basic excitation wave, and the frequency of the following elastic wave may be the same as the frequency of the following excitation wave; or the frequency of the basic elastic wave is obtained from the frequency of the basic excitation wave through a set transformation relationship, and the frequency of the following elastic wave is obtained from the frequency of the following excitation wave through a set transformation relationship.

[0070] Figure 3A schematic diagram of an excitation signal including a basic excitation wave and a following excitation wave is given. Figure 3 The frequency of the follow-up excitation wave in the embodiment is greater than the frequency of the basic excitation wave, but those skilled in the art should know that the frequency of the follow-up excitation wave can also be less than the frequency of the basic excitation wave. Figure 3 In addition to the given triangular wave, the basic excitation wave and the following excitation wave can also be other forms of waveforms such as square waves and sine waves.

[0071] After the touch panel collects the elastic wave signal through the elastic wave sensor, it can perform spectrum analysis on the elastic wave signal to distinguish the basic elastic wave from the follow-up elastic wave.

[0072] In an exemplary embodiment, the stylus applies an excitation signal to the excitation source, including: applying an excitation signal that matches the currently set touch input instruction to the excitation source, wherein different excitation signals matching different touch input instructions contain the same basic excitation wave and different superimposed excitation waves, or contain the same basic excitation wave and different follow-up excitation waves.

[0073] Figure 2 and Figure 4 Two different excitation signals matching two different touch input instructions are respectively given, and the two different excitation signals have the same basic excitation wave and different superimposed excitation waves.

[0074] In an exemplary embodiment, the touch function is implemented according to the detected elastic wave signal, including:

[0075] Positioning the contact track according to the basic elastic wave;

[0076] A touch input instruction is determined according to the superimposed elastic wave or the following elastic wave, and a touch function corresponding to a preset touch input instruction is implemented according to the determined touch input instruction.

[0077] In an exemplary embodiment, the stylus drives the touch panel to generate a preset elastic wave signal at the contact position through a built-in excitation source, including: applying an excitation signal to the excitation source, the excitation signal being a basic excitation wave to drive the touch panel to generate an elastic wave signal at the contact position;

[0078] Applying an excitation signal to the excitation source includes: applying a basic excitation wave matching the currently set touch input instruction to the excitation source, wherein different touch input instructions match different basic excitation waves, and the different basic excitation waves refer to at least one of the frequency, amplitude, duty cycle and beam duration of the waveform being different; Figure 5 Two different excitation signals matching two different touch input instructions are respectively given, and the two different excitation signals have different basic excitation waves.

[0079] The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, parsing the basic elastic wave contained in the elastic wave signal.

[0080] In an exemplary embodiment, the step of implementing a touch function according to the detected elastic wave signal includes:

[0081] Positioning the contact track according to the basic elastic wave;

[0082] A touch input instruction is determined according to the basic elastic wave, and a touch function corresponding to a preset touch input instruction is implemented according to the determined touch input instruction.

[0083] The technical solution described in the embodiment of the present application supports the same stylus pen to realize different touch functions by contacting the touch panel under different touch input instructions. Since different touch input instructions correspond to different excitation signals, the same stylus pen can send different excitation signals by being set to different touch input instructions, thereby driving the touch panel to generate different elastic wave signals at the contact position. The touch panel realizes different touch functions according to different elastic wave signals (the correspondence between the touch input instructions, excitation signals and touch functions can be preset).

[0084] The technical solution described in this application also supports multiple styluses contacting the touch panel to realize different touch functions. When multiple styluses set to different touch input instructions contact the touch panel, the multiple styluses generate different excitation signals to drive the touch panel to generate different elastic wave signals at different contact positions. The touch panel realizes different touch functions according to different elastic wave signals.

[0085] The technical solution described in this application also supports multiple styluses contacting the touch panel to achieve the same touch function. When multiple styluses set to the same touch input instruction contact the touch panel, the multiple styluses generate the same excitation signal, driving the touch panel to generate the same elastic wave signal at different contact positions. The touch panel achieves the same touch function according to the same elastic wave signal.

[0086] The technical solution recorded in this application also supports multiple styluses contacting the touch panel to achieve the same touch function, and in this case different styluses are respectively provided with the same touch input instructions.

[0087] When there are multiple styluses, in an exemplary embodiment, in order to distinguish different elastic wave signals from different styluses, the method further includes:

[0088] Time synchronization of the excitation sources of the multiple styluses is performed to determine the timing of applying excitation signals to the respective excitation sources by the multiple styluses (such as the time sequence and time interval of applying the excitation signals, or the time point of applying the excitation signals, etc.);

[0089] Different styluses apply excitation signals to respective excitation sources at determined times;

[0090] The touch panel detects elastic wave signals through the provided elastic wave sensor, and implements a touch function according to the detected elastic wave signals, including:

[0091] The touch panel detects the timing of receiving elastic wave signals through the elastic wave sensors provided, determines the stylus pen corresponding to the elastic wave signal according to the timing of receiving the elastic wave signal, and implements the corresponding touch function according to the preset touch function corresponding to the stylus pen.

[0092] In the above, the subject that performs time synchronization on the excitation sources of the multiple styluses and determines the timings at which the multiple styluses apply excitation signals to their respective excitation sources may be the stylus or the touch panel.

[0093] As an implementation, when the execution subject is a stylus pen, the touch panel may obtain information of the stylus pen that has been in contact with the touch panel from the touch panel, establish communication with the stylus pen indicated by the stylus pen information, and negotiate with the stylus pen the timing of applying the excitation signal to the respective excitation sources, so that the elastic wave signals generated by different stylus pens in contact with the touch panel do not overlap with each other in time; in this embodiment, the method further includes: after the stylus pen detects contact with the touch panel, sending its own information to the touch panel;

[0094] As an implementation method, when the executing entity is a touch panel, the touch panel can establish communication with the stylus that has been in contact with itself and notify each stylus of the time to apply an excitation signal to its respective excitation source, so that the elastic wave signals generated by different styluses in contact with the touch panel do not overlap in time.

[0095] In an exemplary embodiment, when there are multiple styluses, in order to distinguish different elastic wave signals corresponding to different touch input instructions, the touch panel detects the elastic wave signal through an elastic wave sensor, and implements the touch function according to the detected elastic wave signal, which may include: the touch panel performs characteristic analysis on the elastic wave signal, and determines the corresponding different touch input instructions according to the analyzed different superimposed elastic waves, or different following elastic waves, or different basic elastic waves; and implements the corresponding touch function according to the preset touch function corresponding to the touch input instruction.

[0096] In an exemplary embodiment, the method further includes: coloring the contact track according to the correspondence between the touch input instruction and the color. When different touch input instructions exist on the same stylus, by selecting different touch input instructions, contact tracks of different colors can be displayed on the touch panel. When there are multiple styluses in contact with the touch panel, by selecting different touch input instructions on different styluses, the contact tracks of different styluses with the touch panel are displayed in different colors.

[0097] In an exemplary embodiment, the stylus pen detects contact with the touch panel, including: detecting a force signal strength according to a built-in pressure detection element; when the force signal strength is detected to be greater than a preset value, determining that the stylus pen is in contact with the touch panel;

[0098] The method further comprises:

[0099] After detecting the elastic wave signal, the touch panel further determines whether the detected elastic wave signal meets a preset condition before implementing the touch function according to the elastic wave signal. If not, it is determined to be a false touch.

[0100] Since the stylus determines whether it is in contact with the touch panel only based on the strength of the force signal, when the strength of the force signal of the stylus contacting the non-touch panel is greater than a preset value, the stylus will also be determined to be in contact with the touch panel, which is actually a false touch. The touch panel of the embodiment of the present application performs a false touch judgment before realizing the touch function, which can reduce the occurrence of the touch panel still realizing the touch function in the above-mentioned false touch situation.

[0101] In an exemplary embodiment, the touch panel determines whether the detected elastic wave signal meets a preset condition, which may include: the touch panel determines whether the detected elastic wave signal belongs to a preset elastic wave signal set, and the preset elastic wave signal set can be determined based on an excitation signal corresponding to an existing touch input instruction. If it does, it is not a false touch; if it does not, it is a false touch.

[0102] In an exemplary embodiment, the excitation source and the pressure detection element are the same piezoelectric element;

[0103] The stylus detects contact with the touch panel and drives the touch panel to generate a preset elastic wave signal at the contact position, including:

[0104] Controlling the piezoelectric element to detect the strength of the force signal, and when the strength of the force signal is greater than a set threshold, applying an excitation signal to the piezoelectric element to drive the touch panel to generate a preset elastic wave signal at the contact position;

[0105] After applying an excitation signal to the piezoelectric element, a waiting time is entered, during which the piezoelectric element is controlled to detect the strength of the force signal, and when the strength of the force signal is less than or equal to a set threshold, the application of the excitation signal to the piezoelectric element is terminated;

[0106] Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and during the waiting time, the piezoelectric element is controlled to detect the strength of the force signal. When the strength of the force signal is less than or equal to a set threshold, a waiting time is added to continue detecting the force signal. If the strength of the force signal is detected to be less than or equal to the set threshold for a preset number of consecutive waiting times, the application of the excitation signal to the piezoelectric element is terminated;

[0107] Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and the piezoelectric element is controlled to detect the strength of the force signal during the waiting time. When the force strength is less than or equal to a set threshold, an excitation signal is continued to be applied to the piezoelectric element after the waiting time ends, and then the next waiting time is entered. If the force signal strength is detected to be less than or equal to the set threshold for a consecutive preset number of waiting times, the application of the excitation signal to the piezoelectric element is stopped.

[0108] The present application also provides a touch control system. Figure 6 As shown, the touch control system includes a touch pen 501, a touch panel 502, and an elastic wave sensor 503 disposed on the touch panel 502.

[0109] Wherein, the stylus pen 501 comprises:

[0110] An excitation source module; configured to emit an excitation signal;

[0111] A contact detection module, configured to detect contact with the touch panel 502, and notify the control module after detecting the contact;

[0112] A control module, configured to control the excitation source to emit an excitation signal according to the method described in the above embodiment after receiving the contact notification from the contact detection module;

[0113] An excitation element, connected to the excitation source module, configured to generate a preset elastic wave signal under the action of the excitation signal;

[0114] The elastic wave sensor 503 is configured to receive elastic wave signals and send the received elastic wave signals to the main control module in the touch panel 502;

[0115] The touch panel 502 includes:

[0116] The main control module is configured to detect the elastic wave signal according to the method described in the above embodiment, and implement the touch function according to the detected elastic wave signal.

[0117] In an exemplary embodiment, the contact detection module may be a pressure detection module, an optical brightness detection module, etc.; the excitation element may be a piezoelectric element, such as a piezoelectric sensor, etc.

[0118] In an exemplary embodiment, the pressure detection module and the excitation element may be the same piezoelectric element. The reception of the force signal and the transmission of the elastic wave signal are completed through one piezoelectric element, which can reduce the required hardware circuits and has a high degree of integration.

[0119] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

Claims

1. A touch control method, the method comprising: The stylus detects contact with the touch panel, and after detecting contact with the touch panel, drives the touch panel to generate a preset elastic wave signal at the contact position by applying an excitation signal to a built-in excitation source; The touch panel detects elastic wave signals through the provided elastic wave sensors, and implements the touch function according to the detected elastic wave signals; By applying different excitation signals to the built-in excitation source, the touch panel is driven to generate different elastic wave signals at the contact position; the touch panel detects different elastic wave signals through the set elastic wave detector, and locates the contact track and determines the touch input instruction according to the detected different elastic wave signals, and implements the preset touch function corresponding to the touch input instruction according to the determined touch input instruction.

2. The method according to claim 1, characterized in that The method comprises: applying an excitation signal to the excitation source, wherein the excitation signal comprises a basic excitation wave and a superimposed excitation wave, so as to drive the touch panel to generate an elastic wave signal comprising a basic elastic wave and a superimposed elastic wave at the contact position; The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the superimposed elastic wave contained in the elastic wave signal.

3. The method according to claim 1, characterized in that The method comprises: applying an excitation signal to the excitation source, wherein the excitation signal comprises a basic excitation wave and a following excitation wave following the basic excitation wave, so as to drive the touch panel to generate an elastic wave signal comprising the basic elastic wave and the following elastic wave at the contact position; The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, respectively analyzing the basic elastic wave and the following elastic wave contained in the elastic wave signal.

4. The method according to claim 2 or 3, characterized in that: Applying an excitation signal to the excitation source includes: applying an excitation signal matching the currently set touch input instruction to the excitation source, wherein different excitation signals matching different touch input instructions contain the same basic excitation wave and different superimposed excitation waves, or contain the same basic excitation wave and different follow-up excitation waves.

5. The method according to claim 4, characterized in that The method of realizing the touch function according to the detected elastic wave signal includes: Positioning the contact track according to the basic elastic wave; When the different excitation signals include the same basic excitation wave and different superimposed excitation waves, a touch input instruction is determined according to the superimposed elastic wave, and a touch function corresponding to the preset touch input instruction is implemented according to the determined touch input instruction; When the different excitation signals include the same basic excitation wave and different following excitation waves, a touch input instruction is determined according to the following elastic wave, and a touch function corresponding to the preset touch input instruction is implemented according to the determined touch input instruction.

6. The method according to claim 1, characterized in that The method comprises: applying an excitation signal to the excitation source, wherein the excitation signal is a basic excitation wave, so as to drive the touch panel to generate an elastic wave signal at the contact position; The touch panel detects the elastic wave signal through the set elastic wave sensor, including: after the elastic wave sensor detects the elastic wave signal, parsing the basic elastic wave contained in the elastic wave signal.

7. The method according to claim 6, characterized in that Applying an excitation signal to the excitation source includes: applying a basic excitation wave that matches the currently set touch input instruction to the excitation source, wherein different touch input instructions match different basic excitation waves, and the different basic excitation waves refer to at least one of the frequency, amplitude, duty cycle and beam duration of the waveform being different.

8. The method according to claim 7, characterized in that The method of realizing the touch function according to the detected elastic wave signal includes: Positioning the contact track according to the basic elastic wave; Determining a touch input instruction according to the basic elastic wave; A touch function corresponding to the preset touch input instruction is implemented according to the determined touch input instruction.

9. The method according to claim 5 or 8, characterized in that: The method further comprises: The contact track is colored according to the correspondence between the touch input command and the color.

10. The method according to claim 2, 3 or 6, characterized in that: The number of the stylus pens is multiple; The method further comprises: Performing time synchronization on the excitation sources of the multiple styluses to determine the timing for the multiple styluses to apply excitation signals to their respective excitation sources; Different styluses apply excitation signals to respective excitation sources at determined times; The touch panel detects elastic wave signals through the provided elastic wave sensor, and implements a touch function according to the detected elastic wave signals, including: The touch panel determines the stylus pen corresponding to the elastic wave signal according to the timing of the detected elastic wave signal, and implements the corresponding touch function of the stylus pen according to the detected elastic wave signal.

11. The method according to claim 1, characterized in that: The stylus pen detects contact with the touch panel, including: detecting the strength of a force signal according to a built-in pressure detection element; when the strength of the force signal is detected to be greater than a preset value, determining that the stylus pen is in contact with the touch panel; The method further comprises: After detecting the elastic wave signal, the touch panel further determines whether the detected elastic wave signal meets a preset condition before implementing the touch function according to the elastic wave signal. If not, it is determined to be a false touch.

12. The method according to claim 11, characterized in that The excitation source and the pressure detection element are the same piezoelectric element; The stylus detects contact with the touch panel and drives the touch panel to generate a preset elastic wave signal at the contact position, including: Controlling the piezoelectric element to detect the strength of the force signal, and when the strength of the force signal is greater than a set threshold, applying an excitation signal to the piezoelectric element to drive the touch panel to generate a preset elastic wave signal at the contact position; After applying an excitation signal to the piezoelectric element, a waiting time is entered, during which the piezoelectric element is controlled to detect the strength of the force signal, and when the strength of the force signal is less than or equal to a set threshold, the application of the excitation signal to the piezoelectric element is terminated; Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and during the waiting time, the piezoelectric element is controlled to detect the strength of the force signal. When the strength of the force signal is less than or equal to a set threshold, a waiting time is added to continue detecting the force signal. If the strength of the force signal is detected to be less than or equal to the set threshold for a preset number of consecutive waiting times, the application of the excitation signal to the piezoelectric element is terminated; Or, after applying an excitation signal to the piezoelectric element, a waiting time is entered, and the piezoelectric element is controlled to detect the strength of the force signal during the waiting time. When the force strength is less than or equal to a set threshold, an excitation signal is continued to be applied to the piezoelectric element after the waiting time ends, and then the next waiting time is entered. If the force signal strength is detected to be less than or equal to the set threshold for a consecutive preset number of waiting times, the application of the excitation signal to the piezoelectric element is stopped.

13. A touch control system, characterized in that: The touch control system comprises: a touch pen, a touch panel and an elastic wave sensor arranged on the touch panel; The stylus pen comprises: An excitation source module; configured to emit an excitation signal; A contact detection module, configured to detect contact with the touch panel and notify the control module after detecting the contact; A control module, configured to control the excitation source to emit an excitation signal according to the method described in claims 1 to 12 after receiving the contact notification from the contact detection module; An excitation element, connected to the excitation source module, configured to generate a preset elastic wave signal under the action of the excitation signal; The elastic wave sensor is configured to receive an elastic wave signal and send the received elastic wave signal to a main control module in the touch panel; The touch panel comprises: The main control module is configured to detect elastic wave signals according to the method according to any one of claims 1 to 12, and implement a touch function according to the detected elastic wave signals.

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