Touch panel, touch detection method and device, electronic equipment, storage medium and computer program product
By sending drive signals to all electrodes at different times in the capacitive touch panel, the problems of long drive time and high power consumption are solved, and more efficient touch detection is achieved.
Patent Information
- Application Number
- CN202410525689.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-10-28
AI Technical Summary
The existing capacitive touch panel drives the first and second electrodes one by one at different times, resulting in long driving time, high power consumption and low detection rate.
A drive module is used to send drive signals to all first electrodes at the first moment and drive signals to all second electrodes at the second moment, reducing the number of drive cycles. Different lines are selected to switch electrodes by using a gating circuit.
While improving the touch reporting rate, it also reduced power consumption and increased the detection rate.
Smart Images

Figure CN120848746A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of touch panel technology, and in particular to a touch panel, touch detection method, device, electronic device, storage medium, and computer program product. Background Technology
[0002] Currently, touch panels are increasingly being used in various electronic devices, becoming an important intermediate interface device for user interaction with electronic products. Touch panels can be mainly divided into several categories, such as resistive, capacitive, and infrared. Among them, due to the structural advantages, high light transmittance, and long lifespan of capacitive touch panels, most electronic devices use capacitive touch panels as human-computer interaction interfaces.
[0003] In related technologies, the driving module can sequentially send driving signals to each first electrode at different times to drive each first electrode in a time-division multiplexing manner. Each second electrode forms a coupling capacitor with each first electrode. When a finger touches the electrode, a portion of the current flows in, and the collected signal will show a change in capacitance, thereby determining the position of the touch point. However, this method of driving each first electrode at different times results in a long driving time, high power consumption, and low detection rate. Summary of the Invention
[0004] To overcome the problems in related technologies, this disclosure provides a touch panel, touch detection method, device, electronic device, storage medium, and computer program product. The driving module can reduce the number of driving operations by outputting driving signals to all first electrodes at a first moment and driving signals to all second electrodes at a second moment, thereby improving the touch reporting rate while reducing power consumption.
[0005] According to a first aspect of the present disclosure, a touch panel is provided, comprising:
[0006] The drive module is configured to output drive signals;
[0007] At least two first electrodes arranged along a first direction are connected to the drive module;
[0008] At least two second electrodes arranged along a second direction are connected to the drive module; the first direction intersects the second direction;
[0009] The driving module sends the driving signal to all the first electrodes at a first moment and sends the driving signal to all the second electrodes at a second moment; the first moment and the second moment are different.
[0010] In some embodiments, the touch panel further includes:
[0011] A gating circuit, wherein the input terminal of the gating circuit is connected to the driving module, and the output terminal of the gating circuit is connected to all the first electrodes through a first line and to all the second electrodes through a second line, configured to send the driving signal to all the first electrodes through the first line or to send the driving signal to all the second electrodes through the second line.
[0012] In some embodiments, the gating circuit includes:
[0013] A first switch has a fixed end and a movable end. The fixed end is connected to the drive module, and the movable end is connected to either the end of the first circuit or the end of the second circuit.
[0014] In some embodiments, the first line is a single line; the second line is a single line.
[0015] The gating circuit includes:
[0016] A second switch is located between the drive module and all the first electrodes. The first end of the second switch is connected to the drive module, and the second end of the second switch is connected to all the first electrodes through the first line.
[0017] A third switch is located between the drive module and all the second electrodes. The first end of the third switch is connected to the drive module, and the second end of the third switch is connected to all the second electrodes through the second line.
[0018] At the same time, the open / closed state of the second switch is different from that of the third switch.
[0019] In some embodiments, the first line is at least two lines;
[0020] The gating circuit includes:
[0021] At least two fourth switches are provided, each fourth switch being located between the drive module and each first electrode. The first end of each fourth switch is connected to the drive module, and the second end of each fourth switch is connected to the corresponding first electrode through the first line.
[0022] In this configuration, one of the fourth switches corresponds to at least one of the first electrodes, and the first electrodes and the first circuits corresponding to different fourth switches are different; when the drive module outputs the drive signal and the fourth switch is closed, the drive signal is used to drive the first electrode connected to the fourth switch.
[0023] In some embodiments, the second line is at least two lines;
[0024] The gating circuit includes:
[0025] At least two fifth switches are provided, each fifth switch being located between the drive module and each second electrode. The first end of each fifth switch is connected to the drive module, and the second end of each fifth switch is connected to the corresponding second electrode through the second line.
[0026] In this configuration, one of the fifth switches corresponds to at least one of the second electrodes, and the second electrodes and the second circuits corresponding to different fifth switches are different; when the drive module outputs the drive signal and the fifth switch is closed, the drive signal is used to drive the second electrode connected to the fifth switch.
[0027] In some embodiments, the touch panel further includes:
[0028] At least two first integrators are provided, each of which is connected to a corresponding second electrode. The first integrator is configured to convert the first coupling capacitor formed between each second electrode and the first electrode into a signal when the driving module drives the first electrode, thereby obtaining a first voltage signal corresponding to the second electrode.
[0029] At least two second integrators are provided, each of which is connected to a corresponding first electrode. The second integrators are configured to convert the second coupling capacitor formed between each first electrode and the second electrode into a signal when the driving module drives the second electrode, thereby obtaining a second voltage signal corresponding to the first electrode.
[0030] In some embodiments, the touch panel further includes:
[0031] The processing module has a first end connected to the driving module and a second end connected to each of the first integrators, configured to determine the change in each of the first coupling capacitors based on each of the first voltage signals; the second end of the processing module is also connected to each of the second integrators, configured to determine the change in each of the second coupling capacitors based on each of the second voltage signals; and based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors, the touch parameters of the touch object are determined.
[0032] According to a second aspect of the present disclosure, a touch detection method is provided, comprising:
[0033] In response to a touch operation, the driving module of the control touch panel sends the driving signal to all first electrodes at the first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0034] The driving module is controlled to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode is determined; wherein the first time and the second time are different.
[0035] The touch parameters of the touch object are determined based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0036] In some embodiments, the driving module controlling the touch panel sends the driving signal to all first electrodes at a first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode, including:
[0037] When the control gating circuit selects to turn on all the first lines corresponding to the first electrodes, the drive module sends the drive signal to all the first electrodes through the first lines at the first moment and detects the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0038] In some embodiments, the method further comprises:
[0039] The change in each of the first coupling capacitors is compared with a preset first threshold to obtain a first comparison result;
[0040] If the first comparison result indicates that the change in the first coupling capacitor is greater than the first threshold, the second electrode corresponding to the first coupling capacitor is determined as the first target electrode.
[0041] The control of the drive module to send the drive signal to all the second electrodes at a second moment to drive all the second electrodes, and to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode, includes:
[0042] The control gating circuit selects and turns on the second line corresponding to the first target electrode, and sends the driving signal to the first target electrode through the second line, and detects the change in the second coupling capacitance formed between each of the first electrodes and the first target electrode.
[0043] In some embodiments, the touch parameters include: touch position, and the method further includes:
[0044] The change in each of the second coupling capacitors is compared with a preset second threshold.
[0045] If the change in the second coupling capacitor is greater than the second threshold, the first electrode corresponding to the second coupling capacitor is determined as the second target electrode.
[0046] The step of determining the touch parameters of the touch object based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors includes:
[0047] The touch position is determined based on the overlapping position of the first target electrode and the second target electrode.
[0048] According to a third aspect of the present disclosure, a touch detection device is provided, comprising:
[0049] The first driving module is configured to respond to touch operation, control the driving module of the touch panel to send the driving signal to all first electrodes at the first moment to drive all first electrodes, and determine the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0050] The second driving module is configured to control the driving module to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode; wherein the first time and the second time are different.
[0051] The touch parameter determination module is configured to determine the touch parameters of the touch object based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0052] In some embodiments, the first driving module is specifically configured as follows:
[0053] When the control gating circuit selects to turn on all the first lines corresponding to the first electrodes, the drive module sends the drive signal to all the first electrodes through the first lines at the first moment and detects the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0054] In some embodiments, the apparatus further includes:
[0055] The first comparison module is configured to compare the change in each of the first coupling capacitors with a preset first threshold to obtain a first comparison result;
[0056] The first determining module is configured to determine the second electrode corresponding to the first coupling capacitor as the first target electrode when the first comparison result indicates that the change in the first coupling capacitor is greater than the first threshold.
[0057] The second driver module is specifically configured as follows:
[0058] The control gating circuit selects and turns on the second line corresponding to the first target electrode, and sends the driving signal to the first target electrode through the second line, and detects the change in the second coupling capacitance formed between each of the first electrodes and the first target electrode.
[0059] In some embodiments, the apparatus further includes:
[0060] The second comparison module is configured to compare the change in each of the second coupling capacitors with a preset second threshold.
[0061] The second determining module is configured to determine the first electrode corresponding to the second coupling capacitor as the second target electrode when the change in the second coupling capacitor is greater than the second threshold.
[0062] The touch parameter determination module is specifically configured to determine the touch position based on the overlapping position of the first target electrode and the second target electrode.
[0063] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising:
[0064] processor;
[0065] Memory used to store computer programs or instructions;
[0066] The processor executes the computer program or instructions to implement the steps in any of the touch detection methods in the second aspect described above.
[0067] According to a fifth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, comprising:
[0068] When the computer program or instructions in the storage medium are executed by the processor, the steps in any of the touch detection methods in the second aspect described above are implemented.
[0069] According to a sixth aspect of the present disclosure, a computer program product is provided, including a computer program or instructions, which, when executed by a processor, implement the steps of any of the touch detection methods in the second aspect described above.
[0070] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:
[0071] In this embodiment, the touch panel includes a driving module, at least two first electrodes arranged along a first direction connected to the driving module, and at least two second electrodes arranged along a second direction connected to the driving module, wherein the first and second directions intersect. The driving module sends a driving signal to all the first electrodes at a first moment and a driving signal to all the second electrodes at a second moment; the first and second moments are different. Thus, compared to driving each first electrode column-by-column or each second electrode row-by-row at different moments, which results in excessive power consumption due to numerous driving operations, this embodiment reduces the number of driving operations by outputting a driving signal to all the first electrodes at a first moment and a driving signal to all the second electrodes at a second moment, thereby improving the touch sampling rate while reducing power consumption.
[0072] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0073] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0074] Figure 1 This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 1 ;
[0075] Figure 2 This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 2 ;
[0076] Figure 3 This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 1 ;
[0077] Figure 4a This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 3 ;
[0078] Figure 4b This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment;
[0079] Figure 4c This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 5 ;
[0080] Figure 4d This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment;
[0081] Figure 4e This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 7 ;
[0082] Figure 4f This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 8 ;
[0083] Figure 4g This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 9 ;
[0084] Figure 4h This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment;
[0085] Figure 5 This is a flowchart illustrating a touch detection method according to an exemplary embodiment;
[0086] Figure 6a This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 2 ;
[0087] Figure 6b This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 3 ;
[0088] Figure 7 This is a block diagram illustrating a touch detection device according to an exemplary embodiment;
[0089] Figure 8 This is a structural block diagram of an electronic device 800 according to an exemplary embodiment;
[0090] Figure 9 This is a block diagram illustrating a touch detection device 900 according to an exemplary embodiment.
[0091] Explanation of icon numbers:
[0092] 101, Drive module; 102, First electrode; 103, Second electrode; 104, Gating circuit; 105, First line; 106, Second line; 107, First switch; 107a, Fixed terminal; 107b, Movable terminal; 108, Second switch; 109, Third switch; 110, Fourth switch; 111, Fifth switch; 112, First integrator; 113, Second integrator.
[0093] 201, Sixth switch; 202, First amplifier; 203, First integrating capacitor; 204, Seventh switch; 205, Second amplifier; 206, Second integrating capacitor. Detailed Implementation
[0094] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0095] Figure 1 This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 1 ,like Figure 1 As shown, the touch panel includes:
[0096] Drive module 101 is configured to output drive signals;
[0097] At least two first electrodes 102 along a first direction are connected to the drive module 101;
[0098] At least two second electrodes 103 along the second direction are connected to the drive module 101; the first direction intersects the second direction;
[0099] In this process, the drive module 101 sends a drive signal to all the first electrodes 102 at a first moment and sends a drive signal to all the second electrodes 103 at a second moment; the first moment and the second moment are different.
[0100] The touch panel proposed in this disclosure can be applied to electronic devices. Here, the electronic device may include a terminal device, such as a mobile terminal or a fixed terminal. The mobile terminal may include devices such as mobile phones, tablets, laptops, and wearable electronic devices. The fixed terminal may include desktop computers, smart TVs, and in-vehicle devices.
[0101] In this embodiment of the disclosure, the touch panel may include a driving module, a plurality of first electrodes arranged along a first direction and a plurality of second electrodes arranged along a second direction, and a plurality of signal lines connected to the plurality of first electrodes, the plurality of second electrodes and the driving module.
[0102] In some embodiments, the driving module can be a touch chip, which is a display driver integrated circuit (DDIC) of the touch panel. In specific implementation, the touch chip is connected to the processing module and is used to transmit output signals to the processing module so that the processing module determines touch parameters based on the signals output by the touch chip.
[0103] For example, Figure 2This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 2 ,like Figure 2 As shown, a touch system can include three modules: a touch sensor, a touch chip, and a mobile terminal. The touch chip detects whether there is a touch operation on the touch sensor by outputting a drive signal, and sends the detection result to the mobile terminal, ultimately responding to the user's commands to the mobile terminal.
[0104] In some embodiments, a coupling capacitance exists between the first electrode and the second electrode within the touch panel. However, since there is no activated electric field, the sensing circuit cannot detect changes in the coupling capacitance. Therefore, the sensing circuit needs to drive the module to output a drive signal to generate an electric field, thereby detecting touch operations.
[0105] In this embodiment, the driving module outputs a driving signal that can activate and scan the sensing area of the touch panel, i.e., activate and scan the touch sensor. The driving signal can periodically scan each first electrode or each second electrode on the touch sensor, so that the touch panel can continuously monitor and respond to external touch operations. Here, the driving signal can be a voltage signal.
[0106] In some embodiments, the drive module may continuously output drive signals or periodically output drive signals; this disclosure does not limit this.
[0107] Here, the first electrode can be a single, integrally formed conductive sheet, or it can be a conductive sheet formed by electrically connecting multiple electrode sheets. It is understood that the structure of the second electrode can be the same as or different from that of the first electrode. If the first electrode is a single, integrally formed conductive sheet, the portions of each second electrode in contact with this conductive sheet can form coupling capacitors, and touch parameters can be determined based on these coupling capacitors. If the first electrode is a conductive sheet formed by electrically connecting multiple first electrode sheets, coupling capacitors can also be formed when the second electrode sheets overlap with the corresponding first electrode sheets, and touch parameters can be determined based on these coupling capacitors.
[0108] It should be noted that, in order to facilitate the detection of touch parameters on the touch panel, the driving module can send a driving signal to all first electrodes at the first moment, so that all first electrodes that receive the driving signal become driving electrodes and all second electrodes that do not receive the driving signal become sensing electrodes; the driving module can also send a driving signal to all second electrodes at the second moment, so that all second electrodes that receive the driving signal become driving electrodes and all first electrodes that do not receive the driving signal become sensing electrodes.
[0109] Here, the first moment and the second moment are different. The first moment and the second moment can be continuous in time series, that is, the second moment is the next moment after the first moment; the first moment and the second moment can also be discontinuous in time series, that is, the second moment is not the next moment after the first moment. This disclosure does not limit this.
[0110] In some embodiments, the drive module may have multiple output ports, wherein a first output port is connected to all first electrodes and a second output port is connected to all second electrodes. Therefore, the drive module may send drive signals to all first electrodes and also send drive signals to all second electrodes.
[0111] In practice, different control signals can be sent to the drive module, and based on these different control signals, the drive signal output from different output ports can be determined. For example, when the drive module receives the first control signal, it outputs a drive signal to the first output port to send drive signals to all first electrodes at the first moment; and when the drive module receives the second control signal, it outputs a drive signal to the second output port to send drive signals to all second electrodes at the second moment. Here, the control signals can be generated by the processor inside the electronic device according to instructions; the first control signal can be a cosine wave signal, and the second control signal can be a sine wave signal.
[0112] In other embodiments, when the drive module has only one output port, a first transistor can be set between the drive module and all the first electrodes, and a second transistor can be set between the drive module and all the second electrodes. The connection between the drive module and all the first electrodes can be turned on or off by controlling the base current of the first transistor, and the connection between the drive module and all the second electrodes can be turned on or off by controlling the base current of the second transistor.
[0113] Here, the types of the first transistor and the second transistor can be the same or different. For example, the first transistor can be an NPN transistor and the second transistor can be a PNP transistor. This disclosure does not limit this.
[0114] In the specific implementation, when the base current of the first transistor is zero, the first transistor is in the off state, and almost no current flows between the collector and emitter of the first transistor. This indicates that the connection between the driving module and all the first electrodes is broken, and the driving module cannot send driving signals to any of the first electrodes. However, when the base current of the first transistor increases to a certain level, the first transistor is in the saturation state, and the resistance between the collector and emitter of the first transistor becomes smaller, allowing current to flow. This indicates that the connection between the driving module and all the first electrodes is completed, and the driving module can send driving signals to all the first electrodes. Here, the second transistor operates on the same principle as the first transistor, and will not be described in detail here.
[0115] Here, since the driving module sends driving signals to all first electrodes at the first moment and driving signals to all second electrodes at the second moment, at the first moment, when the first transistor is in the on state, the second transistor is in the off state; and at the second moment, when the first transistor is in the off state, the second transistor is in the on state.
[0116] For example, Figure 3 This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 1 ,like Figure 3 As shown, the driving module can sequentially send driving signals to the second electrode, thereby driving the second electrode row by row at different times to detect touch operations on the touch panel. In specific implementation, at time T1, electrode TX1 is driven; at time T2, electrode TX2 is driven; and so on, until electrode TX5 is driven at time T5, until all driving is completed at time T5. If the duration of each drive is T, the total drive duration is 5T, and the power consumption is 5T*K; where K is the number of electrodes scanned per unit time. Therefore, this detection method has a long drive time, high power consumption, and low detection rate, which is detrimental to improving the touch reporting rate. Furthermore, although reducing the duration T of each electrode drive can reduce power consumption, since the duration T is related to the signal-to-noise ratio, the smaller T is, the more susceptible it is to noise interference, which is detrimental to the detection of touch operations.
[0117] In this embodiment of the present disclosure, since it is not necessary to drive the first electrode or the second electrode row by row, a driving signal can be sent to all the first electrodes at the first moment to drive all the first electrodes at the same time; a driving signal can be sent to all the second electrodes at the second moment to drive all the second electrodes at the same time. Therefore, the number of driving times can be reduced and the driving time can be shortened, thereby reducing power consumption while ensuring the touch reporting rate.
[0118] In this embodiment, the touch panel includes a driving module, at least two first electrodes arranged along a first direction connected to the driving module, and at least two second electrodes arranged along a second direction connected to the driving module, wherein the first and second directions intersect. The driving module sends a driving signal to all the first electrodes at a first moment and a driving signal to all the second electrodes at a second moment; the first and second moments are different. Thus, compared to driving each first electrode column-by-column or each second electrode row-by-row at different moments, which results in excessive power consumption due to numerous driving operations, this embodiment reduces the number of driving operations by outputting a driving signal to all the first electrodes at a first moment and a driving signal to all the second electrodes at a second moment, thereby improving the touch sampling rate while reducing power consumption.
[0119] Figure 4a This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 3 ,like Figure 4a As shown, the touch panel also includes:
[0120] The gating circuit 104 has its input terminal connected to the drive module 101 and its output terminal connected to all first electrodes 102 via a first line 105 and to all second electrodes 103 via a second line 106. It is configured to send drive signals to all first electrodes 102 via the first line 105 or to send drive signals to all second electrodes 103 via the second line 106.
[0121] Understandably, to facilitate the connection or disconnection of the first lines between the drive module and all first electrodes, and the second lines between the drive module and all second electrodes, a gating circuit can be provided between the drive module, all first electrodes, and all second electrodes. The input of the gating circuit is connected to the drive module, and the output of the gating circuit is connected to all first electrodes via the first line and to all second electrodes via the second line. Based on the selected conduction path of the gating circuit, the on / off state of the first lines between the drive module and all first electrodes, and the state of the second lines between the drive module and all second electrodes, are adjusted.
[0122] Here, at the same time, the on / off state of the first line and the on / off state of the second line are different.
[0123] In some embodiments, the gating circuit may include a switch, for example, a single-pole double-throw switch or a logic gate; the gating circuit may also include multiple switches, for example, multiple transistors, multiple field-effect transistors (MOSFETs) or multiple relays, and the embodiments disclosed herein do not limit this.
[0124] In some embodiments, the selection circuit may include logic gates, which can control the on / off state of the first line and the second line through logical operations according to different input signals. When the input signal meets a specific condition (e.g., the input signal is a low-level signal), the logic gate outputs a high-level signal, which enables the first line to be turned on and the second line to be turned off, allowing the drive module to send drive signals to all first electrodes through the first line. Conversely, when the input signal does not meet a specific condition (e.g., the input signal is a high-level signal), the logic gate outputs a low-level signal, which enables the second line to be turned on and the first line to be turned off, allowing the drive module to send drive signals to all second electrodes through the second line. Here, the logic gate can be an AND gate, an OR gate, or a NOT gate; this disclosure does not limit the specific logic gates used.
[0125] In practical implementation, taking the NOT gate as an example, the input signal is connected to the input terminal of the NOT gate, and the output terminal of the NOT gate is connected to the control terminal of the first line. The output signal of the NOT gate can be connected to the control terminal of the second line through a buffer or direct connection. The first line is set to conduct when it receives a high level, and the second line is set to conduct when it receives a low level. When the input signal is high, the output of the NOT gate is low. At this time, the first line is open and the second line is open, and the driver module sends a drive signal to all second electrodes through the second line. When the input signal is low, the output of the NOT gate is high. At this time, the first line is open and the second line is open, and the driver module sends a drive signal to all first electrodes through the second line.
[0126] In other embodiments, when the selection circuit may include multiple switches, a first MOS transistor may be placed between the driving module and all the first electrodes, and the first line may be turned on or off by controlling the gate voltage of the first MOS transistor. A second MOS transistor may be placed between the driving module and all the second electrodes, and the second line may be turned on or off by controlling the gate voltage of the second MOS transistor.
[0127] In the specific implementation, when the gate voltage of the first MOSFET is zero or low, there is no conductive path between the source and drain of the first MOSFET, and current cannot flow, indicating that the first circuit is disconnected. The drive module cannot send drive signals to all first electrodes through the first circuit. However, when the gate voltage of the first MOSFET gradually increases to reach the critical voltage value, the first MOSFET enters saturation, and current can flow between the source and drain of the first MOSFET, indicating that the first circuit is turned on. The drive module can then send drive signals to all first electrodes through the first circuit. The second MOSFET operates on the same principle as the first MOSFET and will not be described in detail here.
[0128] Here, since the driving module sends driving signals to all first electrodes at the first moment and driving signals to all second electrodes at the second moment, at the first moment, when the first MOSFET is in saturation, the second MOSFET is in off state; while at the second moment, when the first MOSFET is in off state, the second MOSFET is in saturation state.
[0129] In this embodiment, the touch panel further includes a gating circuit. The input terminal of the gating circuit is connected to the driving module, and the output terminal of the gating circuit is connected to all first electrodes via a first line and to all second electrodes via a second line. Thus, by setting the gating circuit, the first line can be selectively activated to switch all first electrodes as driving electrodes, or the second line can be selected to activate to switch all second electrodes as driving electrodes. This improves the convenience of switching driving electrodes while reducing the number of driving operations, driving time, and power consumption.
[0130] Figure 4b This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment, as shown in Figure 4. Figures 4a-4b As shown, the gating circuit 104 includes:
[0131] The first switch 107 has a fixed end 107a and a movable end 107b. The fixed end 107a is connected to the drive module 101, and the movable end 107b is connected to the end of the first line 105 or to the end of the second line 106.
[0132] Understandably, to simplify the circuit, a first switch with a fixed end and a movable end can be set as a selection circuit, so that the fixed end is connected to the drive module. When the movable end is connected to the end of the first line, the drive module sends a drive signal to all the first electrodes through the first line; when the movable end is connected to the end of the second line, the drive module sends a drive signal to all the second electrodes through the second line.
[0133] In some embodiments, the first switch may be a single-pole double-throw switch, which controls the connection between the active end of the single-pole double-throw switch and the line to connect or disconnect the first line and the second line.
[0134] In its implementation, the single-pole double-throw switch has one input terminal (the fixed terminal mentioned above) and two output terminals. The input terminal is connected to the drive module, the first output terminal is connected to the first line, and the second output terminal is connected to the second line. When the movable end of the single-pole double-throw switch is connected to the first output terminal, it indicates that the first line is connected and the second line is disconnected, allowing the drive module to send drive signals to all first electrodes through the first line. Conversely, when the movable end of the single-pole double-throw switch is connected to the second output terminal, it indicates that the second line is connected and the first line is disconnected, allowing the drive module to send drive signals to all second electrodes through the second line.
[0135] In this embodiment of the disclosure, the conducting circuit can be a first switch with a fixed end and a movable end, such that the fixed end of the first switch is connected to the driving module, and the movable end of the first switch is connected to the end of the first line or the end of the second line. This simplifies the circuit and enables precise control of the driving module to send driving signals to all first electrodes or to all second electrodes, thereby reducing the number of driving operations.
[0136] Figure 4c This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 5 ,like Figures 4a-4c As shown, the first line is a single line; the second line is a single line.
[0137] The gating circuit 104 includes:
[0138] The second switch 108 is located between the drive module 101 and all the first electrodes 102. The first end of the second switch 108 is connected to the drive module 101, and the second end of the second switch 108 is connected to all the first electrodes 102 through the first line 105.
[0139] The third switch 109 is located between the drive module 101 and all the second electrodes 103. The first end of the third switch 109 is connected to the drive module 101, and the second end of the third switch 109 is connected to all the second electrodes 103 through the second line 106.
[0140] At the same time, the open / closed state of the second switch 108 is different from that of the third switch 109.
[0141] Understandably, when the first line is a single line and the second line is a single line, the selection circuit can include a second switch and a third switch. The second switch is positioned between the drive module and the first line, and the on / off state of the first line is adjusted based on the open / closed state of the second switch. Simultaneously, the third switch is positioned between the drive module and the second line, and the on / off state of the second line is adjusted based on the open / closed state of the third switch.
[0142] Specifically, at any given moment, the open / closed states of the second switch and the third switch are different. When the second switch is closed and the third switch is open, the first line is in a conductive state, and the drive module can send drive signals to all first electrodes through the first line. When the second switch is open and the third switch is closed, the second line is in a conductive state, and the drive module can send drive signals to all second electrodes through the second line.
[0143] Here, the second switch and the third switch can be of the same type. For example, the second switch can be a transistor, and the third switch can also be a transistor. Alternatively, the second switch and the third switch can be of different types. For example, the second switch can be a MOSFET, and the third switch can be a transistor. This disclosure does not limit the types of switches.
[0144] In some embodiments, the second switch is a transistor, which is placed between the driving module and the first line. The first line is turned on or off by controlling the base current of the transistor. The third switch is a MOSFET, which is placed between the driving module and the second line. The second line is turned on or off by controlling the gate voltage of the MOSFET.
[0145] In this embodiment, the selection includes a second switch and a third switch. The second switch is connected to the ends of the drive module and the first circuit, respectively, and the third switch is connected to the ends of the drive module and the second circuit, respectively. Thus, based on the open / closed states of the second and third switches, the first and second circuits can be switched on or off, improving the convenience of switching the first or second electrode as the drive electrode.
[0146] Figure 4d This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment, as shown in Figure 6. Figure 4a and 4d As shown, the first route consists of at least two routes;
[0147] The gating circuit 104 includes:
[0148] At least two fourth switches 110 are provided, each fourth switch 110 is located between the drive module 101 and each first electrode 102, the first end of each fourth switch 110 is connected to the drive module 101, and the second end of each fourth switch 110 is connected to the corresponding first electrode 102 through the first line 105.
[0149] In this configuration, one fourth switch 110 corresponds to at least one first electrode 102, and the first electrode 102 and the first line 105 corresponding to different fourth switches 110 are different. When the drive module 101 outputs a drive signal and the fourth switch 110 is closed, the drive signal is used to drive the first electrode 102 connected to the fourth switch 110.
[0150] It should be noted that when the driving module can send driving signals to all second electrodes and drive each second electrode based on the driving signals, each first electrode acts as a sensing electrode. To obtain the touch parameters of the touched object on the touch panel, multiple fourth switches can be set between the driving module and each first electrode. The first terminal of each fourth switch is connected to the driving module, and the second terminal of each fourth switch is connected to the corresponding first electrode through a first line. Thus, based on the open / closed state of each fourth switch, the on / off state of the first line between the driving module and each first electrode can be controlled respectively, facilitating further detection of touch parameters and thereby reducing power consumption while maintaining the touch reporting rate.
[0151] In some embodiments, where each second electrode serves as a driving electrode and each first electrode serves as a sensing electrode, the coupling capacitance between each driving electrode and each sensing electrode changes when a touch operation occurs. Based on this change, a first electrode from among the first electrodes that may be subject to a touch operation can be selected. Therefore, to facilitate further determination of touch parameters, a fourth switch can correspond to at least one first electrode. After locating a first electrode that may be subject to a touch operation, the first circuit corresponding to that first electrode can be activated based on the closed state of the fourth switch corresponding to that first electrode, thereby facilitating the detection of touch parameters.
[0152] Here, the types of the fourth switches can be the same or different. Each fourth switch can correspond to one first electrode or multiple first electrodes, and this embodiment does not limit this.
[0153] Meanwhile, the first electrode and the first circuit are different for different fourth switches.
[0154] In some embodiments, if a fourth switch can correspond to a first electrode, after locating the first electrode that may be subject to touch operation, the first circuit corresponding to the first electrode can be turned on based on the closed state of the fourth switch corresponding to the first electrode, thereby further detecting the touch parameters.
[0155] In other embodiments, a fourth switch may correspond to two first electrodes. For example, the fourth switch is a single-pole double-throw (SPD) switch, which corresponds to first electrode A and first electrode B. The fixed end of the SPD switch is connected to the drive module, the first output terminal is connected to first electrode A, and the second output terminal is connected to first electrode B. If the first electrode that may be subject to touch operation is located as first electrode A, the moving end of the SPD switch is connected to the first output terminal, activating the first circuit corresponding to first electrode A, thereby enabling further detection of touch parameters. If the first electrode that may be subject to touch operation is located as first electrode B, the moving end of the SPD switch is connected to the second output terminal, activating the first circuit corresponding to first electrode B, thereby enabling further detection of touch parameters.
[0156] In this embodiment, the touch panel further includes a plurality of fourth switches, each fourth switch being located between the driving module and each first electrode. The first end of each fourth switch is connected to the driving module, and the second end of each fourth switch is connected to the corresponding first electrode via a first line. Thus, the on / off state of each first line can be controlled by the open / closed state of each fourth switch, facilitating subsequent detection of touch parameters of the touch object and thereby improving the touch reporting rate.
[0157] Figure 4e This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 7 ,like Figure 4a and 4e As shown, the second route consists of at least two routes;
[0158] The gating circuit 104 includes:
[0159] At least two fifth switches 111 are located between the drive module 101 and each second electrode 103. The first end of each fifth switch 111 is connected to the drive module 101, and the second end of each fifth switch 111 is connected to the corresponding second electrode 103 through the second line 106.
[0160] In this configuration, each fifth switch 111 corresponds to at least one second electrode 103, and the second electrode 103 and the second line 106 corresponding to different fifth switches 111 are different. When the drive module 101 outputs a drive signal and the fifth switch 111 is closed, the drive signal is used to drive the second electrode 103 connected to the fifth switch 111.
[0161] It should be noted that when the driving module can send driving signals to all the first electrodes and drive each first electrode based on the driving signals, each second electrode acts as a sensing electrode. To obtain the touch parameters of the touched object on the touch panel, multiple fifth switches can be set between the driving module and each second electrode. The first terminal of each fifth switch is connected to the driving module, and the second terminal of each fifth switch is connected to the corresponding second electrode via a second line. Thus, based on the open / closed state of each fifth switch, the on / off state of the second line between the driving module and each second electrode can be controlled respectively, facilitating further detection of touch parameters and reducing power consumption while maintaining the touch reporting rate.
[0162] In some embodiments, where each first electrode serves as a driving electrode and each second electrode serves as a sensing electrode, the coupling capacitance between each driving electrode and each sensing electrode changes when a touch operation occurs. Based on this change, a second electrode that may be subject to a touch operation can be selected from among the second electrodes. Therefore, to facilitate further determination of touch parameters, a fifth switch can correspond to at least one second electrode. After locating a second electrode that may be subject to a touch operation, the second circuit corresponding to that second electrode can be activated based on the closed state of the fifth switch corresponding to that second electrode, thereby facilitating the detection of touch parameters.
[0163] Here, the types of the fifth switches can be the same or different. Each fifth switch can correspond to one second electrode or multiple second electrodes, and this embodiment does not limit this.
[0164] Meanwhile, the second electrode and the second circuit corresponding to different fifth switches are different.
[0165] In some embodiments, if a fifth switch can correspond to a second electrode, after locating the second electrode that may be subject to touch operation, the second circuit corresponding to the second electrode can be turned on based on the closed state of the fifth switch corresponding to the second electrode, thereby further detecting the touch parameters.
[0166] In other embodiments, if a fifth switch can correspond to two second electrodes, for example, if the fifth switch is a single-pole double-throw switch (SPS), and the SPS corresponds to second electrode A and second electrode B, the fixed end is connected to the drive module, the first output terminal is connected to second electrode A, and the second output terminal is connected to second electrode B. If the second electrode that may be subject to touch operation is located as second electrode A, the moving end of the SPS is connected to the first output terminal, activating the second circuit corresponding to second electrode A, thereby enabling further detection of touch parameters. If the second electrode that may be subject to touch operation is located as second electrode B, the moving end of the SPS is connected to the second output terminal, activating the second circuit corresponding to second electrode B, thereby enabling further detection of touch parameters.
[0167] In this embodiment, the touch panel further includes a plurality of fifth switches, each fifth switch being located between the driving module and each first electrode. The first end of each fifth switch is connected to the driving module, and the second end of each fifth switch is connected to the corresponding second electrode via a second line. Thus, the on / off state of each second line can be controlled by the open / closed state of each fifth switch, facilitating subsequent detection of touch parameters of the touch object and thereby improving the touch reporting rate.
[0168] Figure 4f This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 8 ,like Figure 4f As shown, the touch panel also includes:
[0169] At least two first integrators 112 are provided, each first integrator 112 being connected to a corresponding second electrode 103. The first integrator 112 is configured to convert the first coupling capacitor formed between each second electrode 103 and the first electrode 102 into a signal when the driving module 101 drives the first electrode 102, thereby obtaining a first voltage signal corresponding to the second electrode 103.
[0170] At least two second integrators 113 are provided, each second integrator 113 being connected to a corresponding first electrode 102. The second integrator 113 is configured to convert the second coupling capacitor formed between each first electrode 102 and the second electrode 103 into a signal when the driving module 101 drives the second electrode 103, thereby obtaining a second voltage signal corresponding to the first electrode 101.
[0171] It should be explained that when the turn-on circuit selects to turn on the first line between the drive module and all the first electrodes, a first coupling capacitor will be formed between each second electrode and each first electrode. In order to facilitate the determination of the touch parameters of the touch object based on each first coupling capacitor, multiple first integrators can be set to be connected to the corresponding second electrodes respectively. The first integrators will convert the first coupling capacitor formed between the second electrode and the first electrode into a signal to obtain the first voltage signal corresponding to the second electrode. This will enable the detection circuit to accurately analyze the first voltage signal to obtain the touch parameters.
[0172] Here, each second electrode is connected to a first integrator.
[0173] In some embodiments Figure 4g This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment. Figure 9 ,like Figure 4g As shown, the first integrator 112 includes a sixth switch 201, a first integrating capacitor 203, and a first amplifier 202. The sixth switch 201 is connected in parallel with the first integrating capacitor 203 and is configured to clear the charge stored on the first integrating capacitor 203. The first amplifier 202 is connected in parallel with the first integrating capacitor 203 and is connected to the first electrode 102. It is configured to receive a first voltage signal and adjust the gain of the first voltage signal. Thus, by highlighting the changing trend of the first voltage signal through the first integrating capacitor and amplifying the amplitude of the first voltage signal through the first amplifier, the detection circuit can easily analyze each first voltage signal to determine the second electrode where touch operation may occur.
[0174] It is understandable that when the turn-on circuit selects to turn on the second line between the drive module and all the second electrodes, a second coupling capacitor will be formed between each first electrode and each second electrode. In order to facilitate the determination of the touch parameters of the touch object based on each second coupling capacitor, multiple second integrators can be set to be connected to the corresponding first electrodes respectively. The second integrators will convert the second coupling capacitor formed between the first electrode and the second electrode into a signal to obtain the second voltage signal corresponding to the first electrode. This will enable the detection circuit to accurately analyze the second voltage signal to obtain the touch parameters.
[0175] Here, each first electrode is connected to a second integrator.
[0176] In some embodiments, Figure 4h This is a schematic diagram of the structure of a touch panel according to an exemplary embodiment, such as... Figure 4hAs shown, the second integrator 113 includes a seventh switch 204, a second integrating capacitor 206, and a second amplifier 205. The seventh switch 204 is connected in parallel with the second integrating capacitor 206 and is configured to clear the charge stored on the second integrating capacitor 206. The second amplifier 205 is connected in parallel with the second integrating capacitor 110 and is connected to the second electrode 103, configured to receive the second voltage signal and adjust the gain of the second voltage signal. Thus, by highlighting the changing trend of the second voltage signal through the second integrating capacitor and amplifying the amplitude of the second voltage signal through the second amplifier, the detection circuit can easily analyze each second voltage signal to determine the first electrode where a touch operation may occur.
[0177] In this embodiment, the touch panel further includes at least two first integrators, each connected to a corresponding second electrode. The first integrators convert the first coupling capacitance formed between each second electrode and the first electrode into a signal, obtaining a first voltage signal corresponding to the second electrode. Thus, by setting multiple first integrators to process each first coupling capacitance, the detection circuit can accurately analyze the first voltage signal, thereby improving the accuracy of determining the touch parameters.
[0178] Simultaneously, the touch panel also includes at least two second integrators, each connected to a corresponding first electrode. This allows the second integrators to convert the signals from the second coupling capacitors formed between the first and second electrodes, obtaining a second voltage signal corresponding to the first electrode. Thus, by using multiple second integrators to process each second coupling capacitor, the detection circuit can accurately analyze the second voltage signal, thereby improving the accuracy of determining the touch parameters.
[0179] In some embodiments, the touch panel further includes:
[0180] The processing module has a first end connected to the driving module 101 and a second end connected to each of the first integrators, configured to determine the change in each of the first coupling capacitors based on each of the first voltage signals. The second end of the processing module is also connected to each of the second integrators, configured to determine the change in each of the second coupling capacitors based on each of the second voltage signals. The processing module then determines the touch parameters of the touch object based on the changes in the first and second coupling capacitors.
[0181] Understandably, in order to improve the accuracy of determining the touch parameters of the touch object, the touch panel also includes a processing module. The first end of the processing module is connected to the driving module, and the second end of the processing module is connected to each of the first integrators, configured to determine the change in the first coupling capacitor based on the first voltage signal. At the same time, it is connected to each of the second integrators, configured to determine the change in the second coupling capacitor based on the second voltage signal. Finally, the touch parameters are determined based on the changes in the first coupling capacitors and the changes in the second coupling capacitors.
[0182] Here, the processing module includes a central processing unit (CPU) or a system-on-a-chip (SOC). The CPU or SOC is located on the motherboard of the electronic device.
[0183] Here, touch parameters include, but are not limited to, trigger orientation, touch position, touch duration, and touch pressure sensing.
[0184] In some embodiments, after the processing module is connected to each of the first integrators, it can convert the first voltage signal into a first digital signal and determine the change in the first coupling capacitor based on the first digital signal. For example, the processing module can determine a preset digital signal when the user does not operate the touch panel; then it can calculate the difference between the currently obtained first digital signal and the preset digital signal to determine the change in the first coupling signal.
[0185] Since each first integrator is connected to the processing module simultaneously, the processing module can simultaneously determine the change in the first coupling capacitor based on each first voltage signal, which helps to improve the efficiency of determining touch parameters.
[0186] In other embodiments, after the processing module is connected to each of the second integrators, it can convert the second voltage signal into a second digital signal and determine the change in the second coupling capacitor based on the second digital signal. For example, the processing module can determine a preset digital signal when the user does not operate the touch panel; then it can calculate the difference between the currently obtained second digital signal and the preset digital signal to determine the change in the second coupling signal.
[0187] Since each second integrator is connected to the processing module simultaneously, the processing module can simultaneously determine the change in the second coupling capacitor based on each second voltage signal, which helps to improve the efficiency of determining touch parameters.
[0188] In some embodiments, a processing module is connected to a driving module. The processing module can be configured to output a control signal based on the number of touch objects, and the driving module outputs a driving signal in a driving mode indicated by the control signal. For example, when the number of touch objects is single, the processing module outputs a first control signal, and the driving module, in the driving mode indicated by the first control signal, sends a driving signal to all first electrodes at a first moment to drive all first electrodes, and sends a driving signal to all second electrodes at a second moment to drive all second electrodes.
[0189] In this embodiment of the present disclosure, the touch panel further includes a processing module, which is connected to each of the first integrators so that the processing module can determine the change in the first coupling capacitor based on the first voltage signal; at the same time, it is connected to each of the second integrators so that the processing module can determine the change in the second coupling capacitor based on the second voltage signal; then, the touch parameters of the touch object can be determined based on the changes in the first coupling capacitors and the changes in the second coupling capacitors, thereby improving both the accuracy and efficiency of determining the touch parameters.
[0190] Figure 5 This is a flowchart illustrating a touch detection method according to an exemplary embodiment, such as... Figure 5 As shown, the method includes:
[0191] In step 501, in response to the touch operation, the driving module of the control touch panel sends a driving signal to all the first electrodes at the first moment to drive all the first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0192] In step 502, the control drive module sends a drive signal to all second electrodes at a second time to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode; wherein the first time and the second time are different.
[0193] In step 503, the touch parameters of the touch object are determined based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0194] It should be noted that the touch detection method proposed in this disclosure can be applied to electronic devices. Here, electronic devices can include terminal devices, such as mobile terminals or fixed terminals. Mobile terminals can include mobile phones, tablets, laptops, wearable electronic devices, etc. Fixed terminals can include desktop computers, smart TVs, in-vehicle devices, etc. In other embodiments, the touch detection method can also be applied to applications installed on electronic devices.
[0195] In other embodiments, the touch detection method in this disclosure can be configured in a touch detection device, which can be located in an electronic device; this disclosure does not limit this. It should be noted that the execution entity in this disclosure can be a central processing unit (CPU) in the electronic device in hardware, and related background services in the electronic device in software; this is not limited.
[0196] In some embodiments, a stable coupling capacitance can be formed between the driving electrode and the sensing electrode of the touch panel. When a user's finger (or a user-operated stylus) touches the touch panel, it affects the electric field in the sensor, especially the part of the sensor that is in contact with the user's finger (or the user-operated stylus). This effect causes changes in the signal received by the receiver.
[0197] Specifically, when a user's finger approaches or touches a certain location on the sensor, capacitive coupling is formed between that location and the sensor. Since capacitive coupling changes the electric field distribution on the sensor, it affects the signal received by the receiver. Therefore, the touch chip can determine the specific location of the touch by detecting these changes in the signal.
[0198] In some embodiments, C(i,j) can be used to represent the corresponding coupling capacitance on the sensor, where C(i,j) represents the coupling capacitance formed between the second electrode in the i-th row and the first electrode in the j-th column of the sensor array.
[0199] In this embodiment of the present disclosure, in order to facilitate continuous monitoring of touch operations on the touch panel, in response to a touch operation, the driving module can be controlled to send a driving signal to all first electrodes at a first moment to drive all first electrodes, so that each second electrode acts as a sensing electrode, and the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode is determined; the driving module can be controlled to send a driving signal to all second electrodes at a second moment to drive all second electrodes, so that each first electrode acts as a sensing electrode, and the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode is determined; and then, based on the change in each first coupling capacitance and the change in each second coupling capacitance, the touch parameters of the touch object are determined.
[0200] In some embodiments, touch parameters can be detected using the self-capacitance mode of the touch panel. When a finger touches the screen, due to the presence of the human body's electric field, a coupling capacitor is formed between the user and the touch panel. This coupling capacitor allows the finger to draw a small current from the contact point, causing a change in the coupling capacitor. In self-capacitance mode, each horizontally arranged first electrode and each vertically arranged second electrode are detected sequentially. Based on the change in coupling capacitor before and after the touch, the horizontal and vertical coordinates are determined to determine the touch parameters. However, since the self-capacitance mode is unstable in detecting the touch parameters of the touched object, it is advisable to first determine whether a touch operation exists using the self-capacitance mode, i.e., first determine whether the coupling capacitor formed between the user and the touch panel changes. Then, if a touch operation is determined to exist, the touch parameters of the touched object are further determined based on the mutual capacitance mode of the touch panel.
[0201] In some embodiments, after the driving module sends driving signals to all first electrodes and acquires each first coupling capacitor, the first coupling capacitor can be converted into a first voltage signal based on a first integrator, and then the first voltage signal can be converted into a first digital signal based on a processing module. The change in the first coupling capacitor is then determined based on the first digital signal. Finally, the acquired changes in each first coupling capacitor are sorted in descending order to determine the second electrode corresponding to the largest change in the first coupling capacitor.
[0202] After the driving module sends driving signals to all second electrodes and acquires each second coupling capacitor, the second coupling capacitor can be converted into a second voltage signal based on the second integrator. Then, the second voltage signal is converted into a second digital signal based on the processing module, and the change in the second coupling capacitor is determined based on the second digital signal. Finally, the acquired changes in the second coupling capacitors are sorted in descending order to determine the first electrode corresponding to the largest change in the second coupling capacitor.
[0203] In some embodiments, the touch parameters of the touch object include: touch orientation and / or touch pressure sensing; after obtaining the second electrode corresponding to the largest change in the first coupling capacitance and the first electrode corresponding to the largest change in the second coupling capacitance, the position where the second electrode overlaps with the first electrode is determined to determine the touch orientation and / or touch pressure sensing of the touch object.
[0204] Since the embodiments of this disclosure can send driving signals to all first electrodes at the first moment to drive all first electrodes, and send driving signals to all second electrodes at the second moment to drive all second electrodes, the number of driving times can be reduced, thereby reducing power consumption while ensuring the touch reporting rate.
[0205] In this embodiment, in response to a touch operation, the driving module of the touch panel can be controlled to send driving signals to all first electrodes at a first moment to drive all first electrodes, and determine the change in the first coupling capacitance formed between each second electrode and its corresponding first electrode; then, the driving module can be controlled to send driving signals to all second electrodes at a second moment to drive all second electrodes, and determine the change in the second coupling capacitance formed between each first electrode and its corresponding second electrode; finally, based on the changes in the first coupling capacitance and the changes in the second coupling capacitance, the touch parameters of the touch object are determined. Thus, compared to driving each first electrode column by column or each second electrode row by row at different times, which results in excessive driving times and high power consumption, the driving module in this embodiment reduces the number of driving times by outputting driving signals to all first electrodes at a first moment and driving signals to all second electrodes at a second moment, thereby improving the touch reporting rate while reducing power consumption.
[0206] In some embodiments, the driving module controlling the touch panel sends a driving signal to all first electrodes at a first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode, including:
[0207] When the control gating circuit selects to turn on the first line corresponding to all first electrodes, the drive module sends a drive signal to all first electrodes through the first line at the first moment and detects the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0208] It is understood that the gating circuit is set between the driving module and all the first electrodes and between all the second electrodes. When the gating circuit selects to conduct the first line corresponding to all the first electrodes, the driving module can send a driving signal to all the first electrodes to drive all the first electrodes; when the gating circuit selects to conduct the second line corresponding to all the second electrodes, the driving module can send a driving signal to all the second electrodes to drive all the second electrodes.
[0209] In some embodiments, the gating circuit may be a first switch. In order to drive all the first electrodes, the active end of the first switch may be connected to the end of the first line, so that the driving module sends a driving signal to all the first electrodes through the first line.
[0210] In other embodiments, the gating circuit may be a second switch. In order to drive all the first electrodes, the second switch may be controlled to be closed, so that the drive module sends a drive signal to all the first electrodes through the first line.
[0211] In other embodiments, the gating circuit may be a plurality of fourth switches, each of which corresponds to at least one first electrode. In order to drive all the first electrodes, all the fourth switches may be controlled to be in a closed state, so that the driving module sends a driving signal to all the first electrodes through the first line.
[0212] In this embodiment, when the control gating circuit selects to activate the first lines corresponding to all first electrodes, the drive module sends a drive signal to all first electrodes through the first lines at the first moment, and detects the change in the first coupling capacitance formed between each second electrode and its corresponding first electrode. Thus, by setting the gating circuit, the drive module can send drive signals to all first electrodes, switching all first electrodes as drive electrodes. This improves the convenience of switching drive electrodes, reduces the number of drive cycles, shortens the drive time, and increases the touch reporting rate.
[0213] In some embodiments, the method further includes:
[0214] The change in each first coupling capacitor is compared with a preset first threshold to obtain a first comparison result;
[0215] If the first comparison result indicates that the change in the first coupling capacitance is greater than the first threshold, the second electrode corresponding to the first coupling capacitance is determined as the first target electrode.
[0216] The control drive module sends drive signals to all second electrodes at a second moment to drive all second electrodes, and determines the change in the second coupling capacitance formed between each first electrode and its corresponding second electrode, including:
[0217] The control gating circuit selects and turns on the second line corresponding to the first target electrode, and sends a drive signal to the first target electrode through the second line, and detects the change in the second coupling capacitance formed between each first electrode and the first target electrode.
[0218] Understandably, when the control selection circuit selects to activate the first lines corresponding to all first electrodes, the drive module sends drive signals to all first electrodes. These drive signals drive all first electrodes, forming a first coupling capacitance between each second electrode and its corresponding first electrode. When there is no touch operation, the change in the first coupling capacitance is almost zero; however, when there is a touch operation, some current flows from the finger, causing the change in the first coupling capacitance to be greater than zero, meaning the received signal will cause a change in capacitance.
[0219] Therefore, a preset first threshold can be set, and by obtaining the change in each first coupling capacitor, each first coupling capacitor can be compared with the first threshold to obtain a first comparison result. Based on the first comparison result, the first target electrode can be determined from each second electrode.
[0220] Here, the first threshold can be set based on experience or obtained based on experimental data, and this embodiment does not limit it.
[0221] In some embodiments, if the first comparison result indicates the existence of a second electrode where the change in the first coupling capacitance is greater than the first threshold, it can be determined that a touch operation has occurred, and the second electrode corresponding to the first coupling capacitance can be identified as the first target electrode.
[0222] In other embodiments, if the first comparison result indicates that the change in the second coupling capacitance is not greater than the second threshold, it can be determined that no touch operation has occurred. If it is determined that no touch operation has occurred, the first line between the driving module and all the first electrodes can be kept in a conducting state, and then all the first electrodes can be driven simultaneously based on the driving signal, and the second coupling capacitance between each second electrode and each first electrode can be detected again.
[0223] It should be noted that, in order to respond quickly to the user's touch operation, after the first target electrode is determined, the selection circuit can be controlled to select and turn on the second line corresponding to the first target electrode, and a drive signal can be sent to the first target electrode through the second line to drive the first target electrode, and the change in the second coupling capacitance formed between each first electrode and the first target electrode can be detected.
[0224] In some embodiments, the gating circuit may include multiple fifth switches, each corresponding to at least one second electrode. By controlling the opening and closing state of the fifth switch corresponding to the first target electrode, the on / off state of the second line corresponding to the first target electrode can be adjusted. Specifically, when the fifth switch corresponds to one second electrode, the drive module can send a drive signal to the first target electrode through the second line when the fifth switch corresponding to the first target electrode is in the closed state. When the fifth switch corresponds to multiple second electrodes, for example, if the fifth switch is a single-pole double-throw switch, the drive module can send a drive signal to the first target electrode through the second line when the active end of the single-pole double-throw switch is connected to the second line corresponding to the first target electrode.
[0225] In this embodiment, the changes in each first coupling capacitor are first compared with a preset first threshold to obtain a first comparison result. If the first comparison result indicates that the change in a first coupling capacitor is greater than the first threshold, the second electrode corresponding to the first coupling capacitor is determined as the first target electrode. Finally, the selection circuit is controlled to select and activate the second line corresponding to the first target electrode, and a drive signal is sent to the first target electrode through the second line to detect the change in the second coupling capacitor formed between each first electrode and the first target electrode. In this way, while reducing the number of drive cycles to reduce power consumption, a foundation is laid for determining the user's touch parameters.
[0226] In some embodiments, the touch parameters include: touch position, and the method further includes:
[0227] The change in each of the second coupling capacitors is compared with a preset second threshold.
[0228] If the change in the second coupling capacitor is greater than the second threshold, the first electrode corresponding to the second coupling capacitor is determined as the second target electrode.
[0229] Based on the changes in each first coupling capacitor and each second coupling capacitor, the touch parameters of the touch object are determined, including:
[0230] The touch position is determined based on the overlapping position of the first target electrode and the second target electrode.
[0231] It should be noted that the touch parameters include: touch position. In order to improve the accuracy of determining the touch position, a preset second threshold can be set. By comparing the change of each second coupling capacitor with the second threshold, the second target electrode can be selected from each first electrode.
[0232] Here, the second threshold can be set based on experience or obtained from experimental data. The second threshold can be the same as or different from the first threshold, and this embodiment does not limit this.
[0233] Specifically, if the change in the second coupling capacitor is greater than the second threshold, it can be determined that the first electrode corresponding to the second coupling capacitor is the second target electrode; and if the change in the second coupling capacitor is less than or equal to the second threshold, it can be determined that the first electrode corresponding to the second coupling capacitor is not the second target electrode.
[0234] It is understood that after determining the first target electrode from each of the second electrodes, and then determining the second target electrode from each of the first electrodes, the touch position can be determined based on the overlapping position of the first and second target electrodes. In this embodiment, the second target electrode can be determined from each of the first electrodes by first comparing the change in each of the second coupling capacitors with a preset second threshold. Then, the touch position can be determined based on the overlapping position of the first and second target electrodes. In this way, while reducing the number of driving operations to reduce power consumption, the user's touch position can be accurately and quickly determined, thereby facilitating a rapid response to the user's touch operation and improving the user experience.
[0235] For example, Figure 6a This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 2 ,like Figure 6a As shown, the touch panel includes five columns of first electrodes 102 arranged in parallel and five rows of second electrodes 103 arranged in parallel. When the driving module outputs a driving signal and all fourth switches are in the closed state, the driving module sends driving signals to all first electrodes through each first line, using all first electrodes as driving electrodes and all second electrodes as sensing electrodes. At this time, the time consumed to drive all first electrodes is T.
[0236] After driving all the first electrodes, the first integrator converts the signal of each second electrode and the first coupling capacitor between each first electrode into a first voltage signal corresponding to the second electrode, thereby determining the change in the first coupling capacitor; then, the change in each first coupling capacitor is compared with a preset first threshold to select the first target electrode from the second electrodes. Figure 6a As shown, when the change in the first coupling capacitance corresponding to the second electrode D is greater than the first threshold, it can be determined that the touch operation occurred on the second electrode D, that is, the second electrode D is the first target electrode.
[0237] at the same time, Figure 6b This is a schematic diagram of the structure of a touch detection method according to an exemplary embodiment. Figure 3 ,like Figure 6bAs shown, the fifth switch corresponding to the second electrode D can be adjusted to be in a closed state, so that the driving module sends a driving signal to the second electrode D through the second line corresponding to the fifth switch, uses the second electrode D as a driving electrode, uses all the first electrodes as sensing electrodes, and detects the change amount of the second coupling capacitance formed between each first electrode and the second electrode D. Then, the change amounts of each second coupling capacitance are compared with a preset second threshold value to select a second target electrode from each first electrode, and based on the overlapping position of the first target electrode and the second target electrode, the touch position of the user is accurately located. For example, the touch position shown in the figure is C(3,1), that is, the overlapping position between the second electrode in the third row and the first electrode in the first column. At this time, the time consumed to drive all the second electrodes D is T.
[0238] Therefore, in the process of determining the touch parameters, the total duration consumed to drive each electrode is 2T, the power consumption is 2T*K, and the touch reporting rate is 1 / 2T. Where K is the number of electrodes scanned per unit time.
[0239] And as Figure 3 shown, in the touch detection method in the related art, by driving the driving electrodes (such as all the first electrodes receiving the driving signal or all the second electrodes receiving the driving signal) row by row at different times, if there are five groups of driving electrodes, the total duration consumed to drive each electrode is 5T, the power consumption is 5T*K, and the touch reporting rate is 1 / 5T.
[0240] Therefore, compared with the touch detection method in the related art, the touch detection method in the embodiment of the present disclosure can save driving time (that is, save 3T in the above example), at the same time, reduce power consumption (that is, reduce 60% in the above example), and improve the touch reporting rate (that is, 2.5 times in the above example).
[0241] For a touch panel including N columns of first electrodes and N rows of second electrodes, the duration consumed to drive each electrode by using the touch detection method in the related art is NT, the power consumption is NT*K, and the touch reporting rate is 1 / NT. And the duration consumed to drive each electrode by using the touch detection method of the embodiment of the present disclosure is MT, the power consumption is MT*K, and the touch reporting rate is 1 / MT, where 2 <= M <= N, and the size of M is related to the number of driving electrodes indicated by the touch operation.
[0242] Figure 7 is a block diagram of a touch detection device shown according to an exemplary embodiment. As Figure 7 shown, the touch detection device 700 includes:
[0243] The first driving module 701 is configured to respond to touch operation, control the driving module of the touch panel to send the driving signal to all first electrodes at a first moment to drive all first electrodes, and determine the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0244] The second driving module 702 is configured to control the driving module to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode; wherein the first time is different from the second time.
[0245] The touch parameter determination module 703 is configured to determine the touch parameters of the touch object based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0246] In some embodiments, the first driving module 701 is specifically configured as follows:
[0247] When the control gating circuit selects to turn on all the first lines corresponding to the first electrodes, the drive module sends the drive signal to all the first electrodes through the first lines at the first moment and detects the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0248] In some embodiments, the device 700 further includes:
[0249] The first comparison module is configured to compare the change in each of the first coupling capacitors with a preset first threshold to obtain a first comparison result;
[0250] The first determining module is configured to determine the second electrode corresponding to the first coupling capacitor as the first target electrode when the first comparison result indicates that the change in the first coupling capacitor is greater than the first threshold.
[0251] The second driver module 702 is specifically configured as follows:
[0252] The control gating circuit selects and turns on the second line corresponding to the first target electrode, and sends the driving signal to the first target electrode through the second line, and detects the change in the second coupling capacitance formed between each of the first electrodes and the first target electrode.
[0253] In some embodiments, the device 700 further includes:
[0254] The second comparison module is configured to compare the change in each of the second coupling capacitors with a preset second threshold.
[0255] The second determining module is configured to determine the first electrode corresponding to the second coupling capacitor as the second target electrode when the change in the second coupling capacitor is greater than the second threshold.
[0256] The touch parameter determination module 703 is specifically configured to determine the touch position based on the overlapping position of the first target electrode and the second target electrode.
[0257] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.
[0258] Figure 8 This is a structural block diagram illustrating an electronic device 800 according to an exemplary embodiment. For example, device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.
[0259] Reference Figure 8 The device 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.
[0260] Processing component 802 typically controls the overall operation of device 800, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
[0261] Memory 804 is configured to store various types of data to support operation of device 800. Examples of such data include at least one of the following: instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, and videos. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.
[0262] Power supply component 806 provides power to various components of device 800. Power supply component 806 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 800.
[0263] Multimedia component 808 includes a screen that provides an output interface between device 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a Touch Panel, the screen may be implemented as a touchscreen to receive input signals from the user. The Touch Panel includes one or more touch sensors to sense touches, swipes, and gestures on the Touch Panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
[0264] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
[0265] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.
[0266] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or one of its components, the presence or absence of user contact with device 800, orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.
[0267] Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. Device 800 can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.
[0268] In an exemplary embodiment, device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.
[0269] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including executable instructions or a computer program, which can be executed by the processor 820 of the device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.
[0270] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of a mobile terminal, enables the mobile terminal to perform any of the touch detection methods described in the embodiments of this disclosure. For example, the touch detection method includes:
[0271] In response to a touch operation, the driving module of the control touch panel sends the driving signal to all first electrodes at the first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0272] The driving module is controlled to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode is determined; wherein the first time and the second time are different.
[0273] The touch parameters of the touch object are determined based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0274] This disclosure provides a computer program product comprising a computer program or executable instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer program or executable instructions from the computer-readable storage medium and executes the computer program or executable instructions, causing the computer device to perform any of the touch detection methods described above in this disclosure.
[0275] Figure 9 This is a block diagram illustrating a touch detection device 900 according to an exemplary embodiment. For example, device 900 may be provided as a server. (Refer to...) Figure 9 The device 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions executable by the processing component 922, such as application programs. The application programs stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform the aforementioned touch detection method:
[0276] In response to a touch operation, the driving module of the control touch panel sends the driving signal to all first electrodes at the first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
[0277] The driving module is controlled to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode is determined; wherein the first time and the second time are different.
[0278] The touch parameters of the touch object are determined based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
[0279] Device 900 may also include a power supply component 926 configured to perform power management of device 900, a wired or wireless network interface 950 configured to connect device 900 to a network, and an input / output (I / O) interface 958. Device 900 can operate an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.
[0280] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0281] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A touch panel, characterized in that, include: The drive module is configured to output drive signals; At least two first electrodes arranged along a first direction are connected to the drive module; At least two second electrodes arranged along a second direction are connected to the drive module; The first direction intersects with the second direction; The driving module sends the driving signal to all the first electrodes at a first moment and sends the driving signal to all the second electrodes at a second moment; the first moment and the second moment are different.
2. The touch panel according to claim 1, characterized in that, The touch panel also includes: A gating circuit, wherein the input terminal of the gating circuit is connected to the driving module, and the output terminal of the gating circuit is connected to all the first electrodes through a first line and to all the second electrodes through a second line, configured to send the driving signal to all the first electrodes through the first line or to send the driving signal to all the second electrodes through the second line.
3. The touch panel according to claim 2, characterized in that, The gating circuit includes: A first switch has a fixed end and a movable end. The fixed end is connected to the drive module, and the movable end is connected to either the end of the first circuit or the end of the second circuit.
4. The touch panel according to claim 2, characterized in that, The first line is a single line; The second line is a single line; The gating circuit includes: A second switch is located between the drive module and all the first electrodes. The first end of the second switch is connected to the drive module, and the second end of the second switch is connected to all the first electrodes through the first line. A third switch is located between the drive module and all the second electrodes. The first end of the third switch is connected to the drive module, and the second end of the third switch is connected to all the second electrodes through the second line. At the same time, the open / closed state of the second switch is different from that of the third switch.
5. The touch panel according to claim 2, characterized in that, The first route consists of at least two routes; The gating circuit includes: At least two fourth switches are provided, each fourth switch being located between the drive module and each first electrode. The first end of each fourth switch is connected to the drive module, and the second end of each fourth switch is connected to the corresponding first electrode through the first line. In this configuration, one of the fourth switches corresponds to at least one of the first electrodes, and the first electrodes and the first circuits corresponding to different fourth switches are different; when the drive module outputs the drive signal and the fourth switch is closed, the drive signal is used to drive the first electrode connected to the fourth switch.
6. The touch panel according to claim 2, characterized in that, The second route consists of at least two routes; The gating circuit includes: At least two fifth switches are provided, each fifth switch being located between the drive module and each second electrode. The first end of each fifth switch is connected to the drive module, and the second end of each fifth switch is connected to the corresponding second electrode through the second line. In this configuration, one of the fifth switches corresponds to at least one of the second electrodes, and the second electrodes and the second circuits corresponding to different fifth switches are different; when the drive module outputs the drive signal and the fifth switch is closed, the drive signal is used to drive the second electrode connected to the fifth switch.
7. The touch panel according to claim 1, characterized in that, The touch panel also includes: At least two first integrators are provided, each of which is connected to a corresponding second electrode. The first integrator is configured to convert the first coupling capacitor formed between each second electrode and the first electrode into a signal when the driving module drives the first electrode, thereby obtaining a first voltage signal corresponding to the second electrode. At least two second integrators are provided, each of which is connected to a corresponding first electrode. The second integrators are configured to convert the second coupling capacitor formed between each first electrode and the second electrode into a signal when the driving module drives the second electrode, thereby obtaining a second voltage signal corresponding to the first electrode.
8. The touch panel according to claim 7, characterized in that, The touch panel also includes: The processing module has a first end connected to the driving module and a second end connected to each of the first integrators, configured to determine the change in each of the first coupling capacitors based on each of the first voltage signals; the second end of the processing module is also connected to each of the second integrators, configured to determine the change in each of the second coupling capacitors based on each of the second voltage signals; and based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors, the touch parameters of the touch object are determined.
9. A touch detection method, characterized in that, The method comprises: In response to a touch operation, the driving module of the control touch panel sends the driving signal to all first electrodes at the first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode. The driving module is controlled to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode is determined; wherein the first time and the second time are different. The touch parameters of the touch object are determined based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
10. The touch detection method according to claim 9, characterized in that, The driving module controlling the touch panel sends the driving signal to all first electrodes at a first moment to drive all first electrodes, and determines the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode, including: When the control gating circuit selects to turn on all the first lines corresponding to the first electrodes, the drive module sends the drive signal to all the first electrodes through the first lines at the first moment and detects the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode.
11. The touch detection method according to claim 9, characterized in that, The method further includes: The change in each of the first coupling capacitors is compared with a preset first threshold to obtain a first comparison result; If the first comparison result indicates that the change in the first coupling capacitor is greater than the first threshold, the second electrode corresponding to the first coupling capacitor is determined as the first target electrode. The control of the drive module to send the drive signal to all the second electrodes at a second moment to drive all the second electrodes, and to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode, includes: The control gating circuit selects and turns on the second line corresponding to the first target electrode, and sends the driving signal to the first target electrode through the second line, and detects the change in the second coupling capacitance formed between each of the first electrodes and the first target electrode.
12. The touch detection method according to claim 11, characterized in that, The touch parameters include: touch position, and the method further includes: The change in each of the second coupling capacitors is compared with a preset second threshold. If the change in the second coupling capacitor is greater than the second threshold, the first electrode corresponding to the second coupling capacitor is determined as the second target electrode. The step of determining the touch parameters of the touch object based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors includes: The touch position is determined based on the overlapping position of the first target electrode and the second target electrode.
13. A touch detection device, characterized in that, The device includes: The first driving module is configured to respond to touch operation, control the driving module of the touch panel to send the driving signal to all first electrodes at the first moment to drive all first electrodes, and determine the change in the first coupling capacitance formed between each second electrode and the corresponding first electrode. The second driving module is configured to control the driving module to send the driving signal to all the second electrodes at a second time to drive all the second electrodes, and to determine the change in the second coupling capacitance formed between each first electrode and the corresponding second electrode; wherein the first time and the second time are different. The touch parameter determination module is configured to determine the touch parameters of the touch object based on the changes in each of the first coupling capacitors and the changes in each of the second coupling capacitors.
14. An electronic device, characterized in that, include: processor; Memory used to store computer programs or instructions; The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 9 to 12.
15. A non-transitory computer-readable storage medium storing a computer program or instructions, characterized in that, When the computer program or instructions in the storage medium are executed by a processor, the steps of the method according to any one of claims 9 to 12 are implemented.
16. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 9 to 12.