CN111596802B - Touch screen calibration method and device and computer readable storage medium - Google Patents
Touch screen calibration method and device and computer readable storage medium Download PDFInfo
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- CN111596802B CN111596802B CN202010454010.8A CN202010454010A CN111596802B CN 111596802 B CN111596802 B CN 111596802B CN 202010454010 A CN202010454010 A CN 202010454010A CN 111596802 B CN111596802 B CN 111596802B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- 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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- 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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
Abstract
The application provides a touch screen calibration method, a touch screen calibration device and a computer readable storage medium, wherein the touch screen calibration method comprises the following steps: when a touch screen calibration instruction is received, controlling a display screen to display a preset calibration using interface; acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen; and calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value. Through the implementation of this application scheme, when carrying out flexible touch screen calibration, consider the interference of display screen to flexible touch screen in, can effectively promote flexible touch screen's calibration accuracy, strengthen flexible touch screen's job stabilization nature, can give the more extremely touch operation experience of user.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a method and an apparatus for calibrating a touch screen, and a computer-readable storage medium.
Background
With the continuous development of terminal technology, terminals such as mobile phones and tablet computers are more and more commonly used in life, and at present, capacitive touch screens are widely used in various terminals as a first data input mechanism for a user to operate a terminal device.
In practical application, when the capacitive touch screen is powered on, a capacitance reference value of the capacitive touch screen without interference is obtained first, then the capacitance reference value is used as a reference to detect capacitance change on the touch screen, and whether touch operation exists on the touch screen is judged according to the capacitance reference value, and in order to ensure that the capacitive touch screen can normally identify the touch operation, the capacitance reference value of the capacitive touch screen needs to be calibrated usually. At present, with the continuous pursuit of the user to the high screen ratio, the flexible screen begins to become a mainstream terminal display solution, because the display interference of flexible touch screen is strong, the individual difference of screen module is big, current inflexible touch screen (also be traditional plane hard screen) calibration scheme can't perfectly be applicable to the calibration of flexible touch screen to the job stabilization nature of the flexible touch screen after leading to the calibration is not good enough, ghost point appears easily, the touch is insensitive scheduling problem.
Disclosure of Invention
The embodiment of the application provides a touch screen calibration method, a touch screen calibration device and a computer readable storage medium, which can at least solve the problem that the working stability of a flexible touch screen is poor due to the fact that a non-flexible touch screen calibration scheme is adopted to calibrate the flexible touch screen in the related technology.
A first aspect of an embodiment of the present application provides a touch screen calibration method, including:
when a touch screen calibration instruction is received, controlling a display screen to display a preset calibration using interface;
acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen;
and calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value.
A second aspect of the embodiments of the present application provides a touch screen calibration apparatus, including:
the control module is used for controlling the display screen to display a preset calibration using interface when receiving a touch screen calibration instruction;
the acquisition module is used for acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen;
and the calibration module is used for calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value.
A third aspect of embodiments of the present application provides an electronic apparatus, including: the touch screen calibration method includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the touch screen calibration method provided in the first aspect of the embodiments of the present application.
A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the touch screen calibration method provided in the first aspect of the embodiments of the present application.
Therefore, according to the touch screen calibration method, the touch screen calibration device and the computer readable storage medium provided by the scheme of the application, when a touch screen calibration instruction is received, the display screen is controlled to display a preset calibration using interface; acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen; and calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value. Through the implementation of this application scheme, when carrying out flexible touch screen calibration, consider the interference of display screen to flexible touch screen in, can effectively promote flexible touch screen's calibration accuracy, strengthen flexible touch screen's job stabilization nature, can give the more extremely touch operation experience of user.
Drawings
Fig. 1 is a schematic basic flowchart of a touch screen calibration method according to a first embodiment of the present application;
fig. 2 is a schematic flowchart of a method for calibrating a reference value of a capacitor according to a first embodiment of the present disclosure;
fig. 3 is a schematic detailed flowchart of a touch screen calibration method according to a second embodiment of the present application;
fig. 4 is a schematic diagram illustrating program modules of a touch screen calibration apparatus according to a third embodiment of the present application;
FIG. 5 is a schematic diagram illustrating program modules of another touch screen calibration apparatus according to a third embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. 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 application.
In order to solve the defect of poor working stability of a flexible touch screen caused by a non-flexible touch screen calibration scheme adopted for flexible touch screen calibration in the related art, a first embodiment of the present application provides a touch screen calibration method, which is applied to an entire electronic device, where a flexible touch screen is configured on the electronic device, as shown in fig. 1, which is a basic flow chart of the touch screen calibration method provided in this embodiment, the touch screen calibration method includes the following steps:
Specifically, it is different from the case where a touch screen IC manufacturer calibrates a capacitance signal when a touch screen module is produced, in this embodiment, it is considered that on a flexible touch screen, because the display screen interferes with the touch screen very greatly and is unstable, the overall capacitance value cannot be kept as consistent as possible for each machine, and if the touch screen calibration is not performed in a Factory, it cannot be guaranteed that each touch screen can work in an optimal state.
It should be noted that, in this embodiment, when performing calibration on the flexible touch screen, interference of the display screen to the touch screen needs to be considered, and although the interference is minimum when the display screen does not operate, the display screen cannot be closed under the condition of the industrial and modular test, so that the calibration display interface of this embodiment should be an interface with the smallest display interference.
And 102, acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen.
Specifically, in this embodiment, the touch detection points are selected from electrode intersections in the touch assembly of the flexible touch screen, and may be preset or randomly generated, and the number of the touch detection points may be single or multiple, and when the number of the touch detection points is multiple, the number of the touch detection points is preferably half of the number of all touch points on the flexible touch screen, and the touch detection points are uniformly distributed on the flexible touch screen. It should be understood that the capacitance detection value in this embodiment is a sampling capacitance value of a touch detection point acquired by the flexible touch screen when the flexible touch screen is powered on.
In an implementation manner of this embodiment, before obtaining a capacitance detection value of a preset touch detection point of a flexible touch screen, the method further includes: detecting a touch interference index of a calibration use interface; judging whether the touch interference index is lower than a preset touch interference index threshold value or not; and if so, executing the step of acquiring the capacitance detection value of the preset touch detection point of the flexible touch screen.
Specifically, in this embodiment, in consideration of the fact that the touch screen calibration result is not ideal when the interference of the calibration user interface is large, the embodiment detects the interference index of the currently displayed calibration user interface before the capacitance detection value is obtained, and only continues to execute the subsequent process when the display interference is small, and if the display interference is large, the calibration user interface needs to be displayed and adjusted.
In other embodiments of this embodiment, before controlling the display screen to display the preset calibration usage interface, the method further includes: respectively detecting corresponding touch interference indexes when the display screen displays interfaces with different color values; comparing all the detected touch interference indexes; and determining the interface with the minimum touch interference index as the calibration use interface.
Specifically, different from the previous embodiment, in this embodiment, before the calibration user interface is displayed, that is, touch interference evaluation is performed on different types of display interfaces, and the interface with the minimum interference is determined, so as to ensure that the displayed calibration user interface is an interface suitable for touch screen calibration. It should be understood that the calibration considered in this embodiment uses a solid color interface, and through experiments, the interference magnitudes of the interfaces with different color values are ranked as: the pure black interface > pure red > pure white, and therefore, the pure white interface with the smallest interference is preferably adopted as the display interface for touch screen calibration in the embodiment, and it is ensured that the data obtained by calibration is more reliable.
And 103, calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value.
Specifically, in this embodiment, the bottom layer driver calls a calibration interface provided by the touch screen IC to perform touch screen calibration, and the touch screen IC performs capacitance reference value calibration according to the capacitance detection value and feeds back a calibration result. It should be noted that the capacitance reference value of the present embodiment is a capacitance value used when the flexible touch screen detects whether there is a touch operation, and in practical applications, when the flexible touch screen determines whether there is a touch operation, the capacitance value detected in real time is compared with the capacitance reference value for determination.
It should be noted that the purpose of touch screen calibration is to enable a relatively pure whole capacitance data in the touch screen IC to be used as a support for a subsequent algorithm when the touch screen IC is shipped from a factory, so that a good calibration environment must be ensured during calibration, and a capacitance signal calibration performed when a touch screen IC manufacturer produces a module cannot know real external signal characteristics, so that a calibrated capacitance reference value may easily cause a touch function abnormality.
It should be further noted that, in this embodiment, the calibrated capacitance value data of the whole flexible touch screen may be stored in a flash inside the touch screen IC, and used as a reference for the subsequent touch screen IC during operation, unless calibration operation is performed again through the calibration interface of the touch screen, the data cannot be actively updated inside the touch screen IC, that is, the calibration data cannot be lost no matter whether the touch screen IC is reset or powered on or powered off, so that it can be ensured that the subsequent flexible touch screen can always maintain good touch performance after once calibration is performed when the whole flexible touch screen is shipped from a factory.
In some embodiments of this embodiment, obtaining the capacitance detection value of the preset touch detection point of the flexible touch screen includes: and respectively acquiring the capacitance detection values of preset touch detection points of the flexible touch screen under different calibration use interfaces. Correspondingly, calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value comprises: calculating a weighted average value of all capacitance detection values; and calibrating the capacitance reference value of the flexible touch screen based on the weighted average value.
Specifically, in the embodiment, it is considered that display interference degrees of different display interfaces are different in practical application, so that all interference types are considered, and the touch performance of the electronic device in different use scenes in the use process can be effectively ensured. In this embodiment, the capacitance values are respectively detected for different types of calibration using interfaces, weights are respectively set for different capacitance values, and then a reference capacitance value is obtained by performing weighted averaging and is used as a reference for performing capacitance reference value calibration. Of course, in other embodiments, after the capacitance detection values under different calibration use interfaces are obtained, one reference capacitance detection value may be determined from a plurality of capacitance detection values, and the capacitance reference value may be calibrated based on the determined reference capacitance detection value.
In some embodiments of this embodiment, before controlling the display screen to display the preset calibration usage interface, the method further includes: when an execution instruction corresponding to a factory mode test item is received, judging whether the factory mode test item comprises a touch screen calibration item; upon determining that the touch screen calibration item is included, a touch screen calibration instruction is generated.
Specifically, in this embodiment, an automated testing process of the touch screen is generally performed when the electronic device is shipped from a factory, so as to ensure that the touch screen does not have hardware problems such as short circuit of the sensor and abnormal capacitance value when shipped from the factory. In order to save the test execution time of the production line and improve the production line efficiency, in the factory mode software, the touch screen calibration item and the automatic test item are put together as a whole jig test item, that is, the touch screen calibration test item is added in the original jig touch screen automatic test flow, so that the production line flow and the production line flow which does not need to be subjected to factory calibration of the touch screen are kept consistent, thus effectively ensuring that the omission calibration of equipment does not occur in the production line production process and improving the production line efficiency.
Further, in some embodiments of the present embodiment, after calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value, the method further includes: calling a touch screen test item in the factory mode test items according to the touch screen test instruction; and acquiring a touch screen calibration evaluation index in the touch screen test result.
Specifically, when the calibration evaluation index of the touch screen is unqualified, the step of controlling the display screen to display the preset calibration using interface is returned. In this embodiment, after the flexible touch screen is calibrated, when a touch screen test item is executed, the touch screen calibration effect is detected to obtain a touch screen calibration evaluation index, and when the touch screen calibration evaluation index is not qualified, it may be returned to the touch screen calibration process to re-execute the touch screen calibration. In addition, in the embodiment, when the calibration fails, the bottom layer driver receives the calibration failure result and feeds back the result to the upper layer, and the tool and module software can display the calibration failure result on the interface when receiving the calibration failure result so as to provide reference for a technician.
Fig. 2 is a schematic flow chart of a method for calibrating a capacitance reference value according to this embodiment, in some embodiments of this embodiment, calibrating a capacitance reference value of a flexible touch screen based on a capacitance detection value specifically includes the following steps:
and 203, calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the comparison result.
Specifically, the original capacitance reference value of this embodiment may be a capacitance reference value calibrated by a touch screen IC manufacturer when a module is produced, the difference threshold value of this embodiment is associated with a normal capacitance fluctuation value of the flexible touch screen, the normal capacitance fluctuation value of the flexible touch screen refers to a variation value of capacitance fluctuation of the flexible touch screen in the absence of touch, and in practical application, the difference threshold value may be N (N is a positive integer, for example, 4) times the normal capacitance fluctuation value.
Further, in some implementations of this embodiment, calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the comparison result includes: when the capacitance difference value is smaller than the difference threshold value, calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the capacitance detection value; and when the capacitance difference value is larger than the difference threshold value, taking the difference threshold value as a compensation value of the original capacitance reference value, and calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the compensation value.
Specifically, in this embodiment, if the capacitance difference is smaller than the difference threshold, it is indicated that the interference of the touch detection point is small, the obtained capacitance detection value may be selected as the calibrated capacitance reference value, and if the capacitance difference is larger than the difference threshold, it is indicated that the touch detection point is greatly interfered, at this time, the original capacitance reference value and the capacitance detection value are both regarded as the capacitance reference value, which is inaccurate, the difference threshold is used to compensate the original capacitance reference value to obtain the calibrated capacitance reference value.
Based on the technical scheme of the embodiment of the application, when the touch screen calibration instruction is received, the display screen is controlled to display a preset calibration using interface; acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen; and calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value. Through the implementation of this application scheme, when carrying out flexible touch screen calibration, consider the interference of display screen to flexible touch screen in, can effectively promote flexible touch screen's calibration accuracy, strengthen flexible touch screen's job stabilization nature, can give the more extremely touch operation experience of user.
The method in fig. 3 is a refined touch screen calibration method provided in a second embodiment of the present application, and the touch screen calibration method includes:
In this embodiment, in order to save the test execution time of producing the line, promote production line efficiency, in factory mode software, put touch-sensitive screen calibration item and automation test item together as a holistic worker's mould test item, also add touch-sensitive screen calibration test item in original worker's mould touch-sensitive screen automation test flow, make the flow of producing the line keep unanimous with the production line flow that need not carry out the touch-sensitive screen calibration of leaving the factory, can effectively guarantee like this to produce the line production in-process and can not appear equipment omission calibration, the production line efficiency has also been promoted simultaneously.
And 302, respectively detecting corresponding touch interference indexes when the display screen displays interfaces with different color values.
And 303, controlling the display screen to display the interface with the minimum touch interference index as a calibration use interface.
In this embodiment, the display screen cannot be closed under the condition of the industrial and model test, so that the calibration display interface of this embodiment should be an interface with the smallest display interference. The calibration used interface considered in this embodiment is a pure color interface, and interference evaluation is performed on each pure color interface to determine the interface with the minimum interference.
And 304, acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen.
In this embodiment, the capacitance detection value of this embodiment is a sampling capacitance value of a touch detection point obtained by the flexible touch screen when the flexible touch screen is powered on, and the touch detection point is a point selected from electrode intersections in a touch assembly of the flexible touch screen.
And 305, calculating a capacitance difference value between the capacitance detection value and the original capacitance reference value of the flexible touch screen.
Specifically, the original capacitance reference value of this embodiment may be a capacitance reference value calibrated by a touch screen IC manufacturer when the module is produced.
And step 306, calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the comparison result of the capacitance difference value and the preset difference value threshold value.
In this embodiment, the difference threshold is associated with a normal capacitance fluctuation value of the flexible touch screen, where the normal capacitance fluctuation value of the flexible touch screen refers to a variation value of capacitance floating up and down when the flexible touch screen is not touched.
In addition, in this embodiment, if the capacitance difference is smaller than the difference threshold, the acquired capacitance detection value may be selected as the calibrated capacitance reference value, and if the capacitance difference is larger than the difference threshold, the difference threshold is used to compensate the original capacitance reference value to obtain the calibrated target capacitance reference value.
And 307, storing the target capacitance reference value into a flash inside the touch screen IC.
Specifically, in the embodiment, the calibrated whole capacitance value data is stored to be used as a reference for the working of a subsequent touch screen IC, unless calibration operation is performed again through a calibration interface of the touch screen, the data cannot be actively updated inside the touch screen IC, that is, no matter whether the touch screen IC is reset or is subjected to power-on and power-off operation, the calibration data cannot be lost, and thus, after once calibration is performed when the whole machine leaves a factory, the subsequent flexible touch screen can always maintain good touch performance.
It should be understood that, the size of the serial number of each step in this embodiment does not mean the execution sequence of the step, and the execution sequence of each step should be determined by its function and inherent logic, and should not be limited uniquely to the implementation process of the embodiment of the present application.
The embodiment of the application discloses a touch screen calibration method, which comprises the steps of generating a touch screen calibration instruction according to a touch screen calibration item in a factory mode test item; respectively detecting touch interference indexes of the display screen when the display screen displays interfaces with different color values, and controlling the display screen to display the interface with the minimum touch interference index as a calibration using interface; acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen; calibrating the capacitance reference value of the flexible touch screen based on a capacitance difference value between the capacitance detection value and the original capacitance reference value of the flexible touch screen and a preset difference threshold value; and storing the calibrated capacitance reference value. By implementing the scheme, when the flexible touch screen is calibrated, the interference of the display screen to the flexible touch screen is considered, so that the calibration accuracy of the flexible touch screen can be effectively improved, the working stability of the flexible touch screen is enhanced, and more extreme touch operation experience can be provided for a user; in addition, a touch screen calibration item is added in the original automatic testing process of the industrial and modular touch screen, so that the production line leakage calibration rate can be effectively reduced, and the overall production line efficiency can be improved.
Fig. 4 is a touch screen calibration apparatus according to a third embodiment of the present application. The touch screen calibration device can be used for realizing the touch screen calibration method in the embodiment. As shown in fig. 4, the touch screen calibration apparatus mainly includes:
the control module 401 is configured to control the display screen to display a preset calibration using interface when receiving a touch screen calibration instruction;
an obtaining module 402, configured to obtain a capacitance detection value of a preset touch detection point of the flexible touch screen;
and a calibration module 403, configured to calibrate a capacitance reference value of the flexible touch screen based on the capacitance detection value.
Fig. 5 is a schematic view of another touch screen calibration apparatus provided in this embodiment, in some embodiments of this embodiment, the touch screen calibration apparatus further includes: a determining module 404, configured to detect touch interference indexes corresponding to display screens displaying interfaces with different color values before the display screens are controlled to display a preset calibration use interface; comparing all the detected touch interference indexes; and determining the interface with the minimum touch interference index as the calibration use interface.
In some embodiments of this embodiment, the obtaining module 402 is specifically configured to: and respectively acquiring the capacitance detection values of preset touch detection points of the flexible touch screen under different calibration use interfaces. Correspondingly, the calibration module 403 is specifically configured to: calculating a weighted average value of all capacitance detection values; and calibrating the capacitance reference value of the flexible touch screen based on the weighted average value.
Referring to fig. 5 again, in some embodiments of the present embodiment, the touch screen calibration apparatus further includes: a generating module 405, configured to determine whether a factory mode test item includes a touch screen calibration item when an execution instruction corresponding to the factory mode test item is received before a display screen is controlled to display a preset calibration use interface; upon determining that the touch screen calibration item is included, a touch screen calibration instruction is generated.
Further, in some implementations of the present embodiment, the obtaining module 402 is further configured to: after the capacitance reference value of the flexible touch screen is calibrated based on the capacitance detection value, calling a touch screen test item in factory mode test items according to a touch screen test instruction; and acquiring a touch screen calibration evaluation index in the touch screen test result. And when the calibration evaluation index of the touch screen is not qualified, returning to the control module 401 to execute the function of controlling the display screen to display the preset calibration use interface.
In some embodiments of the present embodiment, the calibration module 403 is specifically configured to: calculating a capacitance difference value between the capacitance detection value and an original capacitance reference value of the flexible touch screen; comparing the capacitance difference value with a preset difference value threshold value; and calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the comparison result.
Further, in some embodiments of this embodiment, the calibration module 403, when calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the comparison result, is specifically configured to: when the capacitance difference value is smaller than the difference threshold value, calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the capacitance detection value; and when the capacitance difference value is larger than the difference threshold value, taking the difference threshold value as a compensation value of the original capacitance reference value, and calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to the target capacitance reference value according to the compensation value.
It should be noted that, the touch screen calibration methods in the first and second embodiments can be implemented based on the touch screen calibration device provided in this embodiment, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the touch screen calibration device described in this embodiment may refer to the corresponding process in the foregoing method embodiment, and details are not described here again.
According to the touch screen calibration device provided by the embodiment, when a touch screen calibration instruction is received, a display screen is controlled to display a preset calibration using interface; acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen; and calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value. Through the implementation of this application scheme, when carrying out flexible touch screen calibration, consider the display screen to flexible touch screen's interference in, can effectively promote flexible touch screen's calibration accuracy, strengthen flexible touch screen's job stabilization nature, can give the user more extremely touch operation experience.
Referring to fig. 6, fig. 6 is an electronic device according to a fourth embodiment of the present disclosure. The electronic device can be used for realizing the touch screen calibration method in the embodiment. As shown in fig. 6, the electronic device mainly includes:
The Memory 601 may be a high-speed Random Access Memory (RAM) Memory, or a non-volatile Memory (non-volatile Memory), such as a disk Memory. The memory 601 is used for storing executable program code, and the processor 602 is coupled with the memory 601.
Further, an embodiment of the present application also provides a computer-readable storage medium, where the computer-readable storage medium may be provided in an electronic device in the foregoing embodiments, and the computer-readable storage medium may be the memory in the foregoing embodiment shown in fig. 6.
The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the touch screen calibration method in the foregoing embodiments. Further, the computer-readable medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a RAM, a magnetic disk, or an optical disk, and various media capable of storing program codes.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. 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 modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a readable storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned readable 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.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the touch screen calibration method, apparatus and computer readable storage medium provided by the present application, those skilled in the art will be able to change the concept of the embodiments of the present application in the following detailed description and the application scope, and in summary, the content of the present specification should not be construed as limiting the present application.
Claims (9)
1. A method of touch screen calibration, comprising:
when a touch screen calibration instruction is received, controlling a display screen to display a preset calibration using interface;
acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen;
calibrating a capacitance reference value of the flexible touch screen based on the capacitance detection value, wherein the capacitance reference value is a capacitance value used when the flexible touch screen detects whether touch operation exists, so that when the flexible touch screen judges whether touch operation exists, the capacitance value detected in real time is compared with the capacitance reference value for judgment;
before the control display screen displays the preset calibration use interface, the method further comprises the following steps:
respectively detecting corresponding touch interference indexes when the display screen displays interfaces with different color values;
comparing all the detected touch interference indicators;
and determining the interface with the minimum touch interference index as the calibration using interface.
2. The touch screen calibration method according to claim 1, before acquiring the capacitance detection value of the preset touch detection point of the flexible touch screen, further comprising:
detecting a touch interference index of a calibration use interface;
judging whether the touch interference index is lower than a preset touch interference index threshold value or not;
and if so, executing the step of acquiring the capacitance detection value of the preset touch detection point of the flexible touch screen.
3. The touch screen calibration method according to claim 1, wherein before the controlling the display screen to display the preset calibration use interface, the method further comprises:
when an execution instruction corresponding to a factory mode test item is received, judging whether the factory mode test item comprises a touch screen calibration item or not;
generating the touch screen calibration instruction upon determining that the touch screen calibration item is included.
4. The method for calibrating a touch screen according to claim 3, wherein after calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value, the method further comprises:
calling a touch screen test item in the factory mode test items according to a touch screen test instruction;
acquiring a touch screen calibration evaluation index in a touch screen test result;
and when the calibration evaluation index of the touch screen is unqualified, returning to the step of controlling the display screen to display a preset calibration using interface.
5. The touch screen calibration method of claim 1, wherein the calibrating the capacitance reference value of the flexible touch screen based on the capacitance detection value comprises:
calculating a capacitance difference value between the capacitance detection value and an original capacitance reference value of the flexible touch screen;
comparing the capacitance difference value with a preset difference value threshold;
and calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to a target capacitance reference value according to the comparison result.
6. The touch screen calibration method of claim 5, wherein calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to a target capacitance reference value according to the comparison result comprises:
when the capacitance difference value is smaller than the difference value threshold value, calibrating a capacitance reference value of the flexible touch screen from the original capacitance reference value to the capacitance detection value;
and when the capacitance difference value is larger than the difference threshold value, taking the difference threshold value as a compensation value of the original capacitance reference value, and calibrating the capacitance reference value of the flexible touch screen from the original capacitance reference value to a target capacitance reference value according to the compensation value.
7. A touch screen calibration device, comprising:
the determining module is used for respectively detecting corresponding touch interference indexes of the display screen when the display screen displays interfaces with different color values before the display screen is controlled to display a preset calibration using interface; comparing all the detected touch interference indexes; determining the interface with the minimum touch interference index as a calibration using interface;
the control module is used for controlling the display screen to display a preset calibration using interface when receiving a touch screen calibration instruction; the acquisition module is used for acquiring a capacitance detection value of a preset touch detection point of the flexible touch screen;
and the calibration module is used for calibrating a capacitance reference value of the flexible touch screen based on the capacitance detection value, wherein the capacitance reference value is a capacitance value used when the flexible touch screen detects whether touch operation exists, so that the flexible touch screen compares the capacitance value detected in real time with the capacitance reference value to judge when judging whether touch operation exists.
8. An electronic device, comprising: a memory, a processor, and a bus;
the bus is used for realizing connection communication between the memory and the processor;
the processor is configured to execute a computer program stored on the memory;
the processor, when executing the computer program, performs the steps of the method of any one of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| CN116909433A (en) * | 2023-09-12 | 2023-10-20 | 宁波普瑞均胜汽车电子有限公司 | Touch event detection method, device and system and computer equipment |
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