Touch module and signal processing method thereof

Abstract

The invention provides a touch module and a signal processing method thereof, the touch module comprises a main control chip and a circuit board, the circuit board is provided with a plurality of touch chips, the main control chip is connected with the circuit board, and the plurality of touch chips are mutually connected; the plurality of touch chips are respectively used for generating touch signals, and the touch signals comprise interrupt signals and IIC signals; the main control chip is used for acquiring sorting information of the plurality of touch chips and selecting a target chip in the plurality of touch chips according to the sorting information when the interrupt signal is read, and the serial number of the target chip in the sorting information is consistent with the current selection frequency; the main control chip is further used for analyzing the IIC signals generated by the target chips, controlling the touch control areas corresponding to the target chips when the data of the IIC signals changes, and continuing to select the next target chip when the data of the IIC signals does not change until the IIC signals generated by all the touch control chips are analyzed.

Description

Technical Field

[0001] The present invention mainly relates to the field of touch control technology, and in particular to a touch control module and a signal processing method of the touch control module. Background Art

[0002] Touch technology is currently widely used in electronic devices such as smart phones, which allows users to operate the screen by touching the screen. In related technologies, the touch and display driver integration (TDDI) technology is used to integrate the touch chip and the display chip into a single chip, thereby simplifying the hardware structure of the electronic device. However, this method limits users to only be able to perform touch operations within the screen corresponding to the display area, and cannot perform touch functions outside the display area, affecting the user experience. Summary of the invention

[0003] The present invention provides a touch module and a signal processing method of the touch module, which are used to solve the technical problem that the prior art cannot realize the touch function outside the display area.

[0004] In a first aspect, the present application provides a touch module, including a main control chip and a circuit board, wherein the circuit board is provided with a plurality of touch chips, the main control chip is connected to the circuit board, and the plurality of touch chips are connected to each other; the plurality of touch chips are each used to generate a touch signal, and the touch signal includes an interrupt signal and an IIC signal;

[0005] The main control chip is used to obtain the sorting information of the multiple touch control chips, and when the interrupt signal is read, selects a target chip from the multiple touch control chips according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number;

[0006] The main control chip is also used to analyze the IIC signal generated by the target chip. When the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is continuously selected until the analysis of the IIC signals generated by all touch chips is completed.

[0007] In some embodiments, each touch control chip has a unique IIC address, and the main control chip is further used to read the IIC signal generated by the corresponding touch control chip according to the IIC address.

[0008] In some embodiments, the sorting information includes:

[0009] The plurality of touch control chips have respective corresponding priorities; or,

[0010] The priorities corresponding to the IIC addresses of the multiple touch control chips.

[0011] In some embodiments, a display area is further included, and the plurality of touch control chips include a TDDIIC, wherein the touch control area corresponding to the TDDIIC is the display area of ​​the touch control module.

[0012] In some embodiments, the circuit board includes a plurality of FPCs, wherein signal lines between the plurality of FPCs are connected and conductive, and the signal lines are used to transmit the touch signal.

[0013] In a second aspect, the present application provides a signal processing method of a touch module, wherein the touch module comprises a main control chip and a circuit board, wherein the circuit board is provided with a plurality of touch chips, the main control chip is connected to the circuit board, and the plurality of touch chips are connected to each other; each of the plurality of touch chips is used to generate a touch signal, and the touch signal comprises an interrupt signal and an IIC signal; the method comprises:

[0014] Acquire sorting information of a plurality of touch control chips, and when the interrupt signal is read, select a target chip from the plurality of touch control chips according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number;

[0015] The IIC signal generated by the target chip is analyzed, and when the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is continuously selected until the IIC signal generated by all touch chips is analyzed.

[0016] In some embodiments, each touch control chip has a unique IIC address, and the main control chip is further used to read the IIC signal generated by the corresponding touch control chip according to the IIC address.

[0017] In some embodiments, the sorting information includes:

[0018] The plurality of touch control chips have respective corresponding priorities; or,

[0019] The priorities corresponding to the IIC addresses of the multiple touch control chips.

[0020] In some embodiments, the touch control module further includes a display area, the plurality of touch control chips include a TDDIIC, and the method further includes: when data of an IIC signal generated by the TDDIIC changes, controlling the display area.

[0021] In some embodiments, the circuit board includes a plurality of FPCs, wherein signal lines between the plurality of FPCs are connected and conductive, and the signal lines are used to transmit the touch signal.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The present application provides a touch module and a signal processing method for the touch module. By arranging multiple touch chips on a circuit board, a main control chip is connected to the circuit board, and multiple touch chips are connected to each other, so that the main control chip can obtain the sorting information of the multiple touch chips, and analyze the IIC signal of the selected target chip according to the sorting information. The analysis result can be used to control the touch area corresponding to the target chip or continue to select the next target chip, thereby realizing the overall control of the multiple touch chips. In this way, the user can realize the touch operation in the touch area corresponding to each touch chip, thereby solving the technical problem that the touch function cannot be realized outside the display area, thereby improving the user's operation experience of the touch module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of a touch module in the related art;

[0026] Figure 2 is a structural schematic diagram of a touch module provided in this embodiment;

[0027] Figure 3 is a schematic diagram of a disassembled structure of a circuit board provided in this embodiment;

[0028] Figure 4 is a flow chart of a signal processing method of a touch module provided in this embodiment;

[0029] Figure 5 This is a logic example diagram of a signal processing method for a touch module provided in this embodiment. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0031] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. In addition, "plurality" means "at least two".

[0032] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0033] The nouns and terms involved in this application are as follows:

[0034] IIC: Inter-Integrated Circuit, integrated circuit bus.

[0035] FPC: Flexible Printed Circuit, flexible circuit board.

[0036] TDDIIC: Touch and display integrated chip.

[0037] In related technologies, Touch and Display Driver Integration (TDDI) integrates the touch chip and the display chip into a single chip, thereby simplifying the hardware structure of the electronic device. However, this method limits the user to only be able to perform touch operations within the screen corresponding to the display area, and cannot perform touch functions outside the display area, affecting the user experience.

[0038] For example, Figure 1 is a schematic diagram of a touch module in the related art, such as Figure 1 As shown, the touch module 1 includes a touch screen 11 and a touch and display integrated chip 12. The touch screen 11 is used to present the display area. Under the action of the touch and display integrated chip 12, the user can complete the touch operation within the display area, but the touch function cannot be realized outside the display area, causing inconvenience to the user.

[0039] Based on this technical problem, the present application provides a touch module and a signal processing method for the touch module.

[0040] Specifically, the touch module includes a main control chip and a circuit board. The circuit board is provided with multiple touch chips. The main control chip is connected to the circuit board, and the multiple touch chips are connected to each other. The multiple touch chips are each used to generate a touch signal, and the touch signal includes an interrupt signal and an IIC signal.

[0041] The main control chip is used to obtain the sorting information of multiple touch control chips, and when an interrupt signal is read, selects a target chip from the multiple touch control chips according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number.

[0042] The main control chip is also used to analyze the IIC signal generated by the target chip. When the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is selected until the IIC signal generated by all touch chips is analyzed.

[0043] In some embodiments, each touch control chip has a unique IIC address, and the main control chip is further used to read the IIC signal generated by the corresponding touch control chip according to the IIC address.

[0044] In some embodiments, the sorting information includes: priorities corresponding to each of the plurality of touch control chips; or priorities corresponding to each of the IIC addresses of the plurality of touch control chips.

[0045] In some embodiments, the touch module further includes a display area, and the plurality of touch chips include a TDDIIC, wherein the touch area corresponding to the TDDIIC is the display area of ​​the touch module.

[0046] In some embodiments, the circuit board includes a plurality of FPCs, wherein signal lines between the plurality of FPCs are connected and conductive, and the signal lines are used to transmit touch signals.

[0047] The present application sets multiple touch chips on the circuit board, connects the main control chip to the circuit board, and connects the multiple touch chips to each other, so that the main control chip can obtain the sorting information of the multiple touch chips, and analyzes the IIC signal of the selected target chip according to the sorting information. The analysis result can be used to control the touch area corresponding to the target chip or continue to select the next target chip, thereby realizing the overall control of the multiple touch chips. In this way, the user can realize the touch operation in the touch area corresponding to each touch chip, thereby solving the technical problem that the touch function cannot be realized outside the display area, thereby improving the user's operation experience of the touch module.

[0048] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0049] Figure 2 A structural diagram of a touch module provided in this embodiment is shown in FIG. Figure 2 As shown, the touch control module 2 includes a main control chip 21 and a circuit board 22, and the circuit board 22 is provided with a touch control chip 23a and a touch control chip 23b. The main control chip 21 is connected to the circuit board 22, and the touch control chip 23a and the touch control chip 23b are connected to each other.

[0050] The touch control chip 23a and the touch control chip 23b are respectively used to generate a touch control signal, and the touch control signal includes an interrupt signal and an IIC signal.

[0051] The main control chip 21 is used to obtain the sorting information between the touch chip 23a and the touch chip 23b, and when the interrupt signal is read, selects the target chip between the touch chip 23a and the touch chip 23b according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number.

[0052] The main control chip 21 is also used to analyze the IIC signal generated by the target chip. When the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is continuously selected until the IIC signal generated by all touch chips is analyzed.

[0053] In this embodiment, the main control chip 21 provides a CTP (Capacitive Touch Panel) signal for controlling the touch control chip 23a and the touch control chip 23b.

[0054] In this embodiment, the touch module 2 may be a touch module of an electronic device such as a smart phone, a tablet, etc. The main control chip 21 may be a processor or other chip in these electronic devices, and there is no limitation to this.

[0055] In this embodiment, the touch chip 23a and the touch chip 23b each have a unique IIC address, and the IIC address is used to read the IIC signal generated by the corresponding touch chip. For example, the IIC address of the touch chip 23a is IIC address_a, and the IIC address of the touch chip 23b is IIC address_b. IIC address_a and IIC address_b are composed of different characters, so that the main control chip 21 reads the IIC signal generated by the corresponding touch chip through the IIC address.

[0056] In this embodiment, the sorting information includes the priorities corresponding to the touch chip 23a and the touch chip 23b, for example, the touch chip 23a is superior to the touch chip 23b; or the sorting information may also include the priorities corresponding to the IIC addresses of the touch chip 23a and the touch chip 23b. The priorities may be preset, for example, IIC address_a is superior to IIC address_b.

[0057] In this embodiment, the interrupt signal may come from the touch control chip 23 a or the touch control chip 23 b .

[0058] In this embodiment, the touch chip 23a or the touch chip 23b can be a TDDIIC. For example, the touch chip 23a is a TDDIIC, and its corresponding touch area is the display area of ​​the touch module 2. The touch chip 23b is a CTPIC parallel to it, and the main control chip 21 realizes the overall control of the touch chip 23a and the touch chip 23b in the above manner.

[0059] In this embodiment, the circuit board 22 may include a plurality of FPCs, for example, referring to Figure 3 , is a schematic diagram of the disassembled structure of a circuit board provided in this embodiment, including FPC_a and FPC_b. The signal lines of TDDIIC are connected to FPC_a and FPC_b respectively, and FPC_a and FPC_b are interconnected to enable signal conduction. The touch area corresponding to FPC_a is the display area, which is used to support the user to perform touch operations within the display area. The touch area corresponding to FPC_b includes a touch pattern, which can be a triangle, a circle or a square, without limitation. The touch pattern is used to support the user's touch operations outside the display area.

[0060] Specifically, the signal lines between FPC_a and FPC_b may be connected by welding or by a connector, and there is no limitation to this.

[0061] In this embodiment, the touch function within the display area can be controlled by the touch chip 23a, and the touch function outside the display area can be controlled by the touch chip 23b. A touch pattern can be designed outside the display area to facilitate users to identify the corresponding area outside the display area where the touch function can be realized.

[0062] Figure 4 This is a flow chart of a signal processing method of a touch module provided by the present application. The touch module may include a main control chip and a circuit board, the circuit board is provided with multiple touch chips, the main control chip is connected to the circuit board, the multiple touch chips are connected to each other, and the multiple touch chips are each used to generate a touch signal, and the touch signal includes an interrupt signal and an IIC signal. The execution subject of this flow chart may be the main control chip in the touch module. Figure 4As shown, the method includes:

[0063] S401, obtaining sorting information of a plurality of touch control chips, and selecting a target chip from the plurality of touch control chips according to the sorting information when an interrupt signal is read, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number.

[0064] In this embodiment, each touch control chip has a unique IIC address. Furthermore, the method further includes reading an IIC signal generated by the corresponding touch control chip according to the IIC address.

[0065] In this embodiment, the sorting information includes: priorities corresponding to the multiple touch chips; or priorities corresponding to the IIC addresses of the multiple touch chips.

[0066] In this embodiment, the touch module further includes a display area, and the plurality of touch chips include a TDDIIC. Furthermore, the method further includes: when data of an IIC signal generated by the TDDIIC changes, controlling the display area.

[0067] In this embodiment, the circuit board includes a plurality of FPCs, wherein signal lines between the plurality of FPCs are connected and conductive, the signal lines are used to transmit touch signals, and the touch signals include interrupt signals and IIC signals generated by respective plurality of touch chips.

[0068] S402, analyzing the IIC signal generated by the target chip, and when the data of the IIC signal changes, controlling the touch area corresponding to the target chip, and when the data of the IIC signal does not change, continuing to select the next target chip until the IIC signal generated by all touch chips is analyzed.

[0069] Specifically, Figure 5 As shown in FIG. 1 , a logic example diagram of a signal processing method of a touch module provided in this embodiment is provided. Assuming that the multiple touch chips include a touch chip a and a touch chip b, and the sorting information is that the touch chip a takes precedence over the touch chip b, then in step S402, the steps performed by the main control chip as the execution subject may specifically include:

[0070] S501, analyzing the IIC signal generated by the touch chip a to determine whether the data of the IIC signal generated by the touch chip a has changed, if so, executing step S502, otherwise, executing step S503;

[0071] S502, controlling the touch area corresponding to the touch chip a;

[0072] S503, analyzing the IIC signal generated by the touch chip b to determine whether the data of the IIC signal generated by the touch chip b has changed, if so, executing step S504, otherwise, the processing is completed.

[0073] S504: Control the touch area corresponding to the touch chip b.

[0074] Based on the above method, the touch module sets multiple touch chips on the circuit board, connects the main control chip to the circuit board, and connects the multiple touch chips to each other, so that the main control chip can obtain the sorting information of the multiple touch chips, and analyze the IIC signal of the selected target chip according to the sorting information. The analysis result can be used to control the touch area corresponding to the target chip or continue to select the next target chip, thereby realizing the overall control of multiple touch chips. In this way, the user can realize touch operation in the touch area corresponding to each touch chip, thereby solving the technical problem of not being able to realize the touch function outside the display area, thereby improving the user's operation experience of the touch module.

[0075] The steps of the signal processing method of the touch module can also be stored in the electronic device, for example, in the form of instructions in the memory of the electronic device. When the instructions are executed by the processor of the electronic device, the processor executes the signal processing method of the touch module.

[0076] It should be understood that the processor mentioned in the embodiments of the present application may be a CPU, or other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0077] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory, dynamic random access memory, synchronous dynamic random access memory, double data rate synchronous dynamic random access memory, enhanced synchronous dynamic random access memory, synchronously connected dynamic random access memory, and direct memory bus random access memory.

[0078] In addition, the steps of the signal processing method of the touch module can also be stored in a computer-readable medium, for example, in the form of instructions. When the instructions are executed by a computer, the computer executes the signal processing method of the touch module.

[0079] A computer-readable medium may include a propagated data signal containing computer program code, such as in baseband or as part of a carrier wave. The propagated signal may have a variety of manifestations, including electromagnetic, optical, etc., or a suitable combination. A computer-readable medium may be any computer-readable medium other than a computer-readable storage medium, which may be connected to an instruction execution system, device or apparatus to communicate, propagate or transmit a program for use. The program code on the computer-readable medium may be propagated via any suitable medium, including radio, cable, fiber optic cable, radio frequency signal, or similar medium, or any combination of the above mediums.

[0080] The basic concepts have been described above. Obviously, for those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0081] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0082] Some aspects of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. The above hardware or software may be referred to as "data blocks", "modules", "engines", "units", "components" or "systems". The processor may be one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DAPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or combinations thereof. In addition, various aspects of the present application may be expressed as computer products located in one or more computer-readable media, which include computer-readable program codes. For example, computer-readable media may include, but are not limited to, magnetic storage devices (e.g., hard disks, floppy disks, tapes ...), optical disks (e.g., compact disks CDs, digital versatile disks DVDs ...), smart cards, and flash memory devices (e.g., cards, sticks, key drives ...).

[0083] A computer-readable medium may include a propagated data signal containing computer program code, such as in baseband or as part of a carrier wave. The propagated signal may have a variety of manifestations, including electromagnetic, optical, etc., or a suitable combination. A computer-readable medium may be any computer-readable medium other than a computer-readable storage medium, which may be connected to an instruction execution system, device or apparatus to communicate, propagate or transmit a program for use. The program code on the computer-readable medium may be propagated via any suitable medium, including radio, cable, fiber optic cable, radio frequency signal, or similar medium, or any combination of the above mediums.

[0084] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0085] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0086] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A touch module, characterized in that: It includes a main control chip and a circuit board, the circuit board is provided with a plurality of touch control chips, the main control chip is connected to the circuit board, and the plurality of touch control chips are connected to each other; the plurality of touch control chips are each used to generate a touch control signal, and the touch control signal includes an interrupt signal and an IIC signal; The main control chip is used to obtain the sorting information of the multiple touch control chips, and when the interrupt signal is read, selects a target chip from the multiple touch control chips according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number; The main control chip is also used to analyze the IIC signal generated by the target chip. When the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is continuously selected until the analysis of the IIC signals generated by all touch chips is completed.

2. The touch module according to claim 1, wherein: Each touch control chip has a unique IIC address, and the main control chip is further used to read the IIC signal generated by the corresponding touch control chip according to the IIC address.

3. The touch module according to claim 2, wherein: The sorting information includes: The plurality of touch control chips have respective corresponding priorities; or, The priorities corresponding to the IIC addresses of the multiple touch control chips.

4. The touch module according to any one of claims 1 to 3, characterized in that: It also includes a display area, and the multiple touch chips include TDDIIC, wherein the touch area corresponding to the TDDIIC is the display area of ​​the touch module.

5. The touch module according to any one of claims 1 to 3, characterized in that: The circuit board includes a plurality of FPCs, wherein the plurality of FPCs are connected by signal lines, and the signal lines are used to transmit the touch signal.

6. A signal processing method for a touch module, characterized in that: The touch module includes a main control chip and a circuit board, the circuit board is provided with a plurality of touch chips, the main control chip is connected to the circuit board, and the plurality of touch chips are connected to each other; the plurality of touch chips are each used to generate a touch signal, and the touch signal includes an interrupt signal and an IIC signal; the method includes: Acquire sorting information of a plurality of touch control chips, and when the interrupt signal is read, select a target chip from the plurality of touch control chips according to the sorting information, wherein the sequence number of the target chip in the sorting information is consistent with the current selection number; The IIC signal generated by the target chip is analyzed, and when the data of the IIC signal changes, the touch area corresponding to the target chip is controlled. When the data of the IIC signal does not change, the next target chip is continuously selected until the IIC signal generated by all touch chips is analyzed.

7. The method according to claim 6, characterized in that Each touch control chip has a unique IIC address, and the method further includes: reading an IIC signal generated by the corresponding touch control chip according to the IIC address.

8. The method according to claim 7, characterized in that The sorting information includes: The plurality of touch control chips have respective corresponding priorities; or, The priorities corresponding to the IIC addresses of the multiple touch control chips.

9. The method according to any one of claims 6 to 8, characterized in that: The touch control module further includes a display area, the plurality of touch control chips include a TDDIIC, and the method further includes: when data of an IIC signal generated by the TDDIIC changes, controlling the display area.

10. The method according to any one of claims 6 to 8, characterized in that: The circuit board includes a plurality of FPCs, wherein signal lines between the plurality of FPCs are connected and conductive, and the signal lines are used to transmit the touch signal.

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