CN112783369A - Touch detection method and touch equipment - Google Patents
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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Abstract
The embodiment of the invention provides a touch detection method and touch equipment, relates to the technical field of touch, and can realize accurate stroke effect and improve the writing experience of a user. The method comprises the following steps: determining an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control nodes; and calculating a signal total value of the effective touch nodes in the node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises the area information of a target node communication area and coordinate information of the effective touch node with the maximum signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a touch detection method and a touch device.
Background
Typically, a user may implement touch input on a touch screen through a finger or a stylus.
In the prior art, a touch screen may include a plurality of electrodes, when a user touches the touch screen with a finger or a stylus, a coupling may occur between two electrodes near a touch point, so that capacitance between the two electrodes changes, and according to data of the capacitance change, the touch screen may determine coordinates of the touch point.
However, as shown in fig. 1, the electrode channels of the touch screen are discretely distributed and have a larger distance, if the touch edge of the finger or the stylus is located between the nodes, for example, (a) in fig. 1 is a schematic diagram of the touch edge being located between one node; fig. 1 (b) is a schematic diagram of a touch edge between two nodes; fig. 1 (c) is a schematic diagram of a touch edge located between four nodes, and the touch device may not be able to accurately identify profile information of a touch path input by a user, so that whiteboard software for identifying the touch path and converting the touch path into a front effect may not be able to display an accurate front effect through the touch path, and a writing experience of the user is poor.
Disclosure of Invention
The embodiment of the invention provides a touch detection method and touch equipment, which are used for realizing accurate stroke effect and improving the writing experience of a user.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a touch detection method is provided, including: determining an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control nodes; and calculating a signal total value of the effective touch nodes in the node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises the area information of a target node communication area and coordinate information of the effective touch node with the maximum signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area.
The touch detection method provided by the embodiment of the invention comprises the following steps: determining an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control nodes; and calculating a signal total value of the effective touch nodes in the node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises the area information of a target node communication area and coordinate information of the effective touch node with the maximum signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area. According to the scheme, at least one node communication area can be determined according to the effective touch nodes, the total signal value of the node communication area is converted into the area information of the node communication area, and therefore the area information of each node communication area is obtained.
In a second aspect, a touch device is provided, including: a touch screen, which can be used for displaying; a processor, the processor operable to: determining an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control nodes; calculating a signal total value of an effective touch node in a node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises the area information of a target node communication area and coordinate information of the effective touch node with the largest signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area; and controlling the touch screen to display based on the touch information.
In a third aspect, a touch device is provided, including: a memory, a processor, a bus, and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the touch device is operated, the processor executes the computer-executable instructions stored in the memory to cause the touch device to perform the touch detection method as provided in the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, which includes computer-executable instructions, which, when executed on a computer, cause the computer to perform the touch detection method as provided in the first aspect.
In a fifth aspect, a computer program product is provided, which comprises computer instructions that, when run on a computer, cause the computer to perform the touch detection method as provided in the first aspect.
It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer-readable storage medium may be packaged with a processor of the touch device, or may be packaged separately from the processor of the touch device, which is not limited in this application.
In the description of the second aspect, the third aspect, the fourth aspect, and the fifth aspect in the present application, reference may be made to the detailed description of the first aspect, which is not repeated herein; in addition, for the beneficial effects described in the second aspect, the third aspect, the fourth aspect and the fifth aspect, reference may be made to the beneficial effect analysis of the first aspect, and details are not repeated here.
In this application, the names of the touch detection apparatuses do not limit the devices or the functional modules themselves, and in practical implementations, the devices or the functional modules may appear by other names. Insofar as the functions of the respective devices or functional modules are similar to those of the present application, they are within the scope of the claims of the present application and their equivalents.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a touch edge located between nodes according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a touch detection method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of electrode distribution of a touch panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a touch device according to an embodiment of the present invention;
fig. 5 is a second schematic structural diagram of a touch device according to a second embodiment of the present invention;
fig. 6 is a third schematic structural diagram of a touch device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the words "first", "second", and the like are not limited in number or execution order.
As described in the background art, in the touch screen in the prior art, electrode channels are discretely distributed and have a large distance, and the touch device may not be able to accurately identify the profile information of the touch path, so that the whiteboard software for identifying the touch path and converting the touch path into the writing edge effect cannot display the accurate writing edge effect through the touch path, and the writing experience of the user is poor.
Based on the above problems, embodiments of the present application provide a touch detection method, which can determine an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control nodes; and calculating a signal total value of the effective touch nodes in the node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises the area information of a target node communication area and coordinate information of the effective touch node with the maximum signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area. According to the scheme, at least one node communication area can be determined according to the effective touch nodes, the total signal value of the node communication area is converted into the area information of the node communication area, and therefore the area information of each node communication area is obtained.
As shown in fig. 2, an embodiment of the present application provides a touch detection method, which can be applied to a touch device or a control chip in the touch device, and the touch detection method is described in detail below by taking the touch device as an example. The touch detection method may include S101-S103 described below.
S101, the touch equipment determines effective touch nodes in the touch screen.
As shown in fig. 3, m rows of TX1, TX2, … and TXm represent m driving transmission signal channels, and n columns of RX1, RX2, … and RXn represent n receiving sensing signal channels, and usually, after a TX channel sends out a driving voltage, all the corresponding RX channels can receive.
The touch screen comprises a plurality of transverse electrode channels (namely driving and transmitting signal channels) and a plurality of longitudinal electrode channels (namely receiving and sensing signal channels), and the transverse electrode channels and the longitudinal electrode channels can form capacitors at crossed positions, so that the transverse electrode channels and the longitudinal electrode channels can be crossed to form a plurality of nodes. The touch device can scan and sample the whole surface of the touch screen according to the scanning rule of the touch screen, so that the signal value of each node in the touch screen is determined.
Alternatively, the signal value may be any one of a voltage value, a current value, or a capacitance value. The method can be determined according to actual use conditions, and is not limited in the embodiment of the application.
For example, taking a signal value as a capacitance value as an example, the scanning channels of the touch screen include a driving channel and a sensing channel, the driving end of the touch device may sequentially send a scanning signal to each driving signal line through the driving channel, and the sensing end of the touch device may sequentially receive a sensing scanning signal through the sensing channel. After the driving end driving signal is configured to be a pulse signal with a certain frequency and a certain duty ratio, the sensing end can accumulate the received sensing signal through the integrating circuit. According to the principle of capacitor charging, as the generation time of the driving signal is prolonged, the slowly accumulated charges of the capacitors of the nodes can gradually reach a full-charge state. According to the material characteristics and the dielectric constant of the capacitive screen, the touch control equipment can determine the time when the charges of the nodes are saturated, and samples the capacitance of each node at a preset frequency, so that the capacitance value, namely a signal value, of each node can be obtained.
After the signal value of each node is determined, the touch device may sequentially compare the signal value of each node with a preset first threshold, determine whether a node whose signal value is greater than the first threshold exists in the plurality of nodes, and if so, determine the node whose signal value is greater than the first threshold in the plurality of nodes as an effective touch node.
S102, the touch equipment determines at least one node communication area according to the effective touch nodes.
The touch device may first use the effective touch node determined in S101 as a source touch node, and then determine a first touch node with a maximum signal value in the source touch node. And determining a first node communication area corresponding to the first touch node, wherein the signal value of an effective touch node in the first node communication area is greater than a second threshold value. Then, the touch device may use, as a new source touch node, the effective touch node that is not included in the first node connected region when the first node connected region does not include all effective touch nodes in the source touch node, so as to determine a new node connected region according to the new source touch node until the determined node connected region includes all effective touch nodes, thereby obtaining at least one node connected region.
For example, the touch device may determine the first touch node N1 with the largest signal value among the source touch nodes, and then sequentially determine the signal value S of each node within the grid range of the nine squares of N1iAnd if the signal value of the node is larger than the second threshold, the node can be used as a node in a first node communication area, then the node is sequentially expanded to peripheral nodes, edge nodes in each direction are gradually determined, and the first node communication area is obtained until the signal values of all nodes in an area range are larger than the second threshold and the signal values of nodes adjacent to the edge of the area range are smaller than or equal to the second threshold.
S103, the touch device calculates a signal total value of an effective touch node in the node communication area, and calculates area information of the node communication area according to the signal total value to obtain touch information of at least one node communication area.
The touch information may include area information of a target node connected region and coordinate information of an effective touch node having a maximum signal value in the target node connected region, where the target node connected region is any one of at least one node connected region.
Optionally, the touch device may determine a total signal value of each node connected region in the at least one node connected region. In one implementation, after determining the at least one node connected region, the touch device may calculate a total signal value of each node connected region respectively. In another implementation, the touch device may accumulate the signal values of the determined nodes when determining the area range of the node connected area. For example, if the signal value of the first touch node N1 is S1After the touch device is expanded for the first time, the node N2, the node N3, the node N4 and the node B are determined,The node N5 and the node N6 belong to nodes within the range of the first node communication region, and the signal value of the node N2 is S2The signal value of the node N3 is S3The signal value of the node N4 is S4The signal value of the node N5 is S5The signal value of the node N6 is S6Then the total signal value S of the first node connected region at this timesumIs S1、S2、S3、S4、S5、S6The sum of (1). And then carrying out second edge expansion, and calculating a new signal total value of the first node communication area.
Optionally, the touch device may be according to a formula
And respectively calculating the area information of each node communication area. Wherein WH represents area information, SsumAnd the total signal value of a node communication area is represented, P represents a preset area conversion ratio, L represents an information logic maximum value, and CH represents the channel number of the touch screen.
In S102, the touch device may determine a valid touch node having a largest signal value in each node connection area, that is, the touch device may determine coordinate information of the valid touch node. After the touch device determines the area information of each node connected region, the coordinate information and the area information may be determined as the touch information of the node connected region.
In some embodiments, a touch device includes a touch chip and a host. The determining, by the touch device, the touch information of the at least one node connected region may specifically include: the touch control equipment determines the touch control information of at least one node communication area through the touch control chip. Then, the touch chip may send the touch information to the host according to a preset transmission protocol. The whiteboard software is installed on the host, and after receiving the touch information, the host can invoke the program of the whiteboard software to process the touch information, so that the whiteboard software is controlled to present pen front effects with different thicknesses on the touch screen according to the touch information.
The touch detection method provided by the embodiment of the invention can determine at least one node communication area according to the effective touch nodes, and convert the total signal value of the node communication area into the area information of the node communication area, so as to obtain the area information of each node communication area.
As shown in fig. 4, an embodiment of the present invention provides a touch device 20, where the touch device 20 includes: a determination unit 201 and a calculation unit 202 connected to the determination unit 201.
The determining unit 201 may be configured to determine an effective touch node in the touch screen; and determining at least one node communication area according to the effective touch control node.
The calculating unit 202 may be configured to calculate a total signal value of the effective touch nodes in the node connected region, and calculate area information of the node connected region according to the total signal value to obtain touch information of at least one node connected region, where the touch information includes area information of a target node connected region and coordinate information of an effective touch node with a largest signal value in the target node connected region, and the target node connected region is any one of the at least one node connected region.
Optionally, the determining unit 201 may be specifically configured to determine a signal value of each node in the touch screen, where the touch screen includes a plurality of nodes formed by intersecting a plurality of transverse electrode channels and a plurality of longitudinal electrode channels; and determining a node of the plurality of nodes whose signal value is greater than a first threshold value as the effective touch node.
Optionally, the determining unit 201 may be specifically configured to determine, by using the effective touch node as a source touch node, a first touch node with a largest signal value in the source touch node; determining a first node communication area corresponding to the first touch node, wherein the signal value of an effective touch node in the first node communication area is greater than a second threshold value; and taking the effective touch nodes which are not included in the first node communication area as new source touch nodes to obtain at least one node communication area under the condition that the first node communication area does not include all effective touch nodes in the source touch nodes.
Optionally, the calculating unit 202 may be specifically configured to calculate the formula
Respectively calculating the area information of each node communication area; wherein WH represents area information, SsumAnd the total signal value of a node communication area is represented, P represents a preset area conversion ratio, L represents an information logic maximum value, and CH represents the channel number of the touch screen.
The embodiment of the invention provides a touch device, which can determine at least one node communication area according to an effective touch node, and convert a signal total value of the node communication area into area information of the node communication area, so as to obtain the area information of each node communication area.
As shown in fig. 5, an embodiment of the present invention further provides a touch device 30, which includes a touch screen 301, where the touch screen 301 is used for displaying; a processor 302 for determining valid touch nodes in a touch screen; determining at least one node communication area according to the effective touch control nodes; calculating a signal total value of an effective touch node in each node communication area, and calculating area information of each node communication area according to the signal total value to obtain touch information of at least one node communication area, wherein the touch information comprises area information of a target node communication area and coordinate information of the effective touch node with the largest signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area; the touch screen 301 is controlled to perform display based on the touch information.
Further, the processor 302 is specifically configured to: determining a signal value of each node in the touch screen, wherein the touch screen comprises a plurality of nodes formed by crossing a plurality of transverse electrode channels and a plurality of longitudinal electrode channels; and determining a node of the plurality of nodes whose signal value is greater than a first threshold value as the effective touch node.
Further, the processor 302 is specifically configured to: taking the effective touch node as a source touch node, and determining a first touch node with the maximum signal value in the source touch node; determining a first node communication area corresponding to the first touch node, wherein the signal value of an effective touch node in the first node communication area is greater than a second threshold value; and taking the effective touch nodes which are not included in the first node communication area as new source touch nodes to obtain at least one node communication area under the condition that the first node communication area does not include all effective touch nodes in the source touch nodes.
Further, the processor 302 is specifically configured to: according to the formula
Respectively calculating the area information of each node communication area; wherein WH represents area information, SsumAnd the total signal value of a node communication area is represented, P represents a preset area conversion ratio, L represents an information logic maximum value, and CH represents the channel number of the touch screen.
The embodiment of the invention provides a touch device, which can determine at least one node communication area according to an effective touch node, and convert a signal total value of the node communication area into area information of the node communication area, so as to obtain the area information of each node communication area.
As shown in fig. 6, another touch device according to an embodiment of the present invention includes a memory 41, a processor 42, a bus 43, and a communication interface 44; the memory 41 is used for storing computer execution instructions, and the processor 42 is connected with the memory 41 through a bus 43; when the touch device is operated, the processor 42 executes the computer-executable instructions stored in the memory 41 to cause the touch device to perform the touch detection method provided in the above-mentioned embodiment.
In particular implementations, processor 42(42-1 and 42-2) may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 6, for example, as one embodiment. And as an example, the touch device may include a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 6. Each of the processors 42 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 42 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).
The memory 41 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 41 may be self-contained and coupled to the processor 42 via a bus 43. The memory 41 may also be integrated with the processor 42.
In a specific implementation, the memory 41 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. The processor 42 may touch various functions of the device by running or executing software programs stored in the memory 41, and invoking data stored in the memory 41.
The communication interface 44 is any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 44 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
The bus 43 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a computer execution instruction, and when the computer execution instruction runs on a computer, the computer is enabled to execute the touch detection method provided in the foregoing embodiment.
The embodiment of the present invention further provides a computer program, where the computer program may be directly loaded into a memory and includes a software code, and the computer program is loaded and executed by a computer to implement the touch detection method provided in the above embodiment.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A touch detection method is characterized by comprising the following steps:
determining an effective touch node in a touch screen;
determining at least one node communication area according to the effective touch control node;
and calculating a signal total value of an effective touch node in the node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of the at least one node communication area, wherein the touch information comprises area information of a target node communication area and coordinate information of the effective touch node with the largest signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area.
2. The touch detection method of claim 1, wherein the determining the active touch node in the touch screen comprises:
determining a signal value of each node in the touch screen, wherein the touch screen comprises a plurality of nodes formed by crossing a plurality of transverse electrode channels and a plurality of longitudinal electrode channels;
and determining the node with the signal value larger than a first threshold value in the plurality of nodes as the effective touch node.
3. The touch detection method of claim 1, wherein the determining at least one node connected region according to the active touch node comprises:
taking the effective touch node as a source touch node, and determining a first touch node with the largest signal value in the source touch node;
determining a first node communication area corresponding to the first touch node, wherein a signal value of an effective touch node in the first node communication area is greater than a second threshold value;
and when the first node connected region does not include all effective touch nodes in the source touch nodes, taking the effective touch nodes not included in the first node connected region as new source touch nodes to obtain at least one node connected region.
4. The touch detection method according to claim 1, wherein the calculating area information of the node connected region according to the total signal value includes:
according to the formula
Calculating the area information of the node communication area; wherein WH represents area information, SsumAnd the total signal value of a node communication area is represented, P represents a preset area conversion ratio, L represents an information logic maximum value, and CH represents the channel number of the touch screen.
5. A touch device, comprising:
the touch screen is used for displaying;
a processor to: determining an effective touch node in a touch screen; determining at least one node communication area according to the effective touch control node; calculating a signal total value of an effective touch node in a node communication area, and calculating area information of the node communication area according to the signal total value to obtain touch information of the at least one node communication area, wherein the touch information comprises area information of a target node communication area and coordinate information of the effective touch node with the maximum signal value in the target node communication area, and the target node communication area is any one of the at least one node communication area; and controlling the touch screen to display based on the touch information.
6. The touch device of claim 5, wherein the processor is specifically configured to: determining a signal value of each node in the touch screen, wherein the touch screen comprises a plurality of nodes formed by crossing a plurality of transverse electrode channels and a plurality of longitudinal electrode channels; and determining a node of the plurality of nodes whose signal value is greater than a first threshold value as the effective touch node.
7. The touch device of claim 5, wherein the processor is specifically configured to: taking the effective touch node as a source touch node, and determining a first touch node with the largest signal value in the source touch node; determining a first node communication area corresponding to the first touch node, wherein the signal value of an effective touch node in the first node communication area is greater than a second threshold value; and when the first node connected region does not include all effective touch nodes in the source touch nodes, taking the effective touch nodes not included in the first node connected region as new source touch nodes to obtain at least one node connected region.
8. The touch device of claim 5, wherein the processor is specifically configured to: according to the formula
Calculating the area information of the node communication area; wherein WH represents area information, SsumRepresenting the total signal value of a node connected region, P representing a preset area conversion ratio, L representing information logicThe maximum value, CH, represents the number of channels of the touch screen.
9. A touch device is characterized by comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through the bus; when the touch device is running, the processor executes the computer-executable instructions stored by the memory to cause the touch device to perform the touch detection method of any of claims 1-4.
10. A computer-readable storage medium comprising computer-executable instructions that, when executed on a computer, cause the computer to perform the touch detection method of any of claims 1-4.
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| WO2023137798A1 (en) * | 2022-01-18 | 2023-07-27 | 惠州华星光电显示有限公司 | Screen touch point positioning method and apparatus, and electronic device |
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