CN108595063B - Touch screen scanning method, computer device and storage medium - Google Patents
Touch screen scanning method, computer device and storage medium Download PDFInfo
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- CN108595063B CN108595063B CN201810415866.7A CN201810415866A CN108595063B CN 108595063 B CN108595063 B CN 108595063B CN 201810415866 A CN201810415866 A CN 201810415866A CN 108595063 B CN108595063 B CN 108595063B
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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
- 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
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Abstract
The application relates to a touch screen scanning method, a computer device and a storage medium. The method comprises the following steps: step A: scanning the touch screen at a first scanning frequency, and detecting whether a touch point exists on the touch screen; and B: if the touch point is not detected, scanning the touch screen at a second scanning frequency after a preset waiting time, wherein the second scanning frequency is less than the first scanning frequency; and C: if the touch point is not detected, prolonging the waiting time, and scanning the touch screen at the second scanning frequency; step D: and C, repeating the step C until the waiting time reaches the maximum waiting time for normally scanning the touch screen, and scanning the touch screen at the second scanning frequency. By adopting the method, the power consumption of the touch screen can be reduced, and the service life of the touch screen can be prolonged.
Description
Technical Field
The present application relates to the field of touch screen scanning, and in particular, to a touch screen scanning method, a computer device, and a storage medium.
Background
The capacitive Touch screen ctp (capacitive Touch panel) operates by using current induction of a human body. The capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are respectively coated with a layer of ITO (nanometer indium tin oxide), the outermost layer is a silica glass protective layer with the thickness of only 0.0015mm, the interlayer ITO coating is used as a working surface, four electrodes are led out from four corners, and the inner layer ITO is used as a screen layer to ensure the working environment.
When a finger touches the capacitive touch screen, the coupling between the two electrodes near the touch point is affected, thereby changing the capacitance between the two electrodes. When the capacitance is detected, the transverse electrodes sequentially send out driving signals, and the longitudinal electrodes simultaneously receive signals, so that the capacitance value of the intersection point of the transverse electrodes and the longitudinal electrodes, namely the capacitance of the two-dimensional plane of the whole capacitive touch screen, can be obtained. According to the two-dimensional capacitance variation data of the capacitive touch screen, the coordinates of each touch point can be calculated.
However, when there is no touch point on the capacitive touch screen, the horizontal electrodes of the capacitive touch screen are also always sending out driving signals, and all the vertical electrodes are also always detecting the driving signals, so that the consumed electric quantity is increased, and the service time of the capacitive touch screen is affected.
Disclosure of Invention
In view of the above, it is desirable to provide a touch screen scanning method, a computer device and a storage medium capable of reducing power consumption.
The invention provides a touch screen scanning method, which comprises the following steps:
step A: scanning the touch screen at a first scanning frequency, and detecting whether a touch point exists on the touch screen;
and B: if the touch point is not detected, scanning the touch screen at a second scanning frequency after a preset waiting time, wherein the second scanning frequency is less than the first scanning frequency;
and C: if the touch point is not detected, prolonging the waiting time, and scanning the touch screen at the second scanning frequency;
step D: and C, repeating the step C until the waiting time reaches the maximum waiting time for normally scanning the touch screen, and scanning the touch screen at the second scanning frequency.
In one embodiment, the touch screen comprises a plurality of first axis direction traces and a plurality of second axis direction traces, and the first axis direction traces are perpendicular to the second axis direction traces.
In one embodiment, the step of scanning the touch screen at the first scanning frequency comprises: and sequentially sending out driving signals to the plurality of traces in the first axial direction at the first scanning frequency, and sequentially detecting the driving signals by the plurality of traces in the second axial direction.
In one embodiment, if a touch point is detected, go back to step a or step B.
In one embodiment, the maximum latency is 450ms to 550 ms.
In one embodiment, the first scanning frequency is a preset scanning frequency, and the second scanning frequency is a minimum scanning frequency at which the touch screen normally operates.
In one embodiment, the waiting time is extended from a preset waiting time in a manner of increasing a fixed time each time.
In one embodiment, the fixed time is 10ms to 20 ms.
The invention also relates to a computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of any of the above methods when executing the computer program.
The invention also relates to a computer-readable storage medium, on which a computer program is stored, characterized in that the computer program realizes the steps of any of the methods described above when executed by a processor.
According to the touch screen scanning method, the computer equipment and the storage medium, when the touch point is not scanned all the time, the scanning waiting time is gradually increased, so that the power consumption of the touch screen is reduced, and the service life of the touch screen is prolonged.
Drawings
FIG. 1 is a flow diagram of a touch screen scanning method in one embodiment;
FIG. 2 is a schematic diagram of an embodiment of a mutually-compatible touch screen;
FIG. 3 is a flow diagram of a method for touch screen scanning in another embodiment;
FIG. 4 is a flowchart of step 70 of FIG. 3;
fig. 5 is a flowchart of step 80 in fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The scanning method of the touch screen can be applied to the process of scanning the touch points by the touch screen. The touch screen may be, but is not limited to, a display screen with a touch function, such as a mobile phone and a tablet computer.
In one embodiment, as shown in fig. 1, there is provided a scanning method of a touch screen, including the steps of:
step A: the touch screen is scanned at a first scanning frequency.
The first scanning frequency in the step a is a frequency capable of scanning the touch screen, and the first scanning frequency can be set according to the size of the touch screen. The scanning may be scanning the entire screen of the touch screen.
And step B, judging whether the touch point is scanned.
Specifically, the processor of the touch screen scans the entire screen range of the touch screen at a first scanning frequency. And returning to the step A if the touch point is detected, and performing subsequent steps if the touch point is not detected.
And C: if the touch point is not detected, after waiting for a preset waiting time, scanning the touch screen at a second scanning frequency, wherein the second scanning frequency is less than the first scanning frequency;
the waiting time is the time interval between two adjacent scans. The preset waiting time may be set according to the size of the touch screen.
Specifically, after the last scanning is finished, if the touch point is not scanned, the touch screen starts to be scanned at the second scanning frequency after waiting for the preset waiting time. If the touch point is scanned, go back to step A.
Step D: and if the touch point is not detected, prolonging the waiting time, and scanning the touch screen at the second scanning frequency.
Step E: and judging whether the touch point is scanned or not, if the touch point is scanned, returning to the step before the step, and if the touch point is not detected, performing the subsequent steps.
Step F: and scanning the touch screen at the second scanning frequency until the waiting time reaches the maximum waiting time for normally scanning the touch screen.
Specifically, if the touch point is scanned in any one scanning, the procedure returns to step a or step C. If the touch point is not scanned, the processor continuously prolongs the waiting time, and the screen of the touch screen is scanned once every time the waiting time is prolonged. And after one time of scanning, prolonging the waiting time again to start the next scanning. And after the waiting time reaches the maximum waiting time of normally scanning the touch screen, if the touch point is not scanned, the waiting time is not prolonged any more, the maximum waiting time is maintained, and the next scanning is started.
According to the scanning method of the touch screen, when the touch point is not scanned all the time, the scanning waiting time is gradually prolonged, so that the electric quantity consumption of the touch screen is reduced, and the service time of the touch screen is prolonged.
In one embodiment, taking a mutual capacitance touch screen as an example, as shown in fig. 2, the touch screen includes a plurality of first-axis-direction traces (X1, X2 … … Xn) and a plurality of second-axis-direction traces (Y1, Y2 … … Ym). The trace in the first axis direction is connected with a driving unit of the processor, and the driving unit is used for sending out a driving signal along the trace in the first axis direction. The second axial trace is connected to a receiving unit of the processor, and the receiving unit is used for detecting the driving signal along the second axial trace. The first axis direction trace is perpendicular to the second axis direction trace.
When the touch screen scans, the driving unit sends out driving signals along each trace in the first axis direction, and the receiving unit sequentially receives the driving signals along each trace in the second axis direction. Specifically, the driving unit sends out the driving signal along the trace X1 in the first axis direction, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym in the second axis direction. The driving unit sends out the driving signal along a trace X2 in the first axis direction, and the receiving unit sequentially detects the driving signal along a trace Y1 → Y2 → … → Ym in the second axis direction. And so on, the driving signal is emitted along the trace Xn-1 of the first axis direction by the driving unit, and the driving signal is detected sequentially along the traces Y1 → Y2 → … → Ym by the receiving unit along the second axis direction. The driving unit sends out the driving signal along the trace Xn of the first axis direction, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction. At this point, one scan is completed. The time interval between the driving signal emitted by the driving unit along trace X1 in the first axis direction and the driving signal emitted by the driving unit along trace X2 in the first axis direction is the scanning frequency.
In one embodiment, as shown in fig. 3, a specific process of the touch screen scanning method may include:
step 10: the driving unit sequentially emits driving signals along the trace line X1 → X2 → … → Xn of the first axis direction at a first scanning frequency, and the receiving unit sequentially detects the driving signals along the trace line Y1 → Y2 → … → Ym of the second axis direction.
Step 20: if no touch point is scanned, after waiting for a preset waiting time T, the driving unit sequentially sends out driving signals along the trace X1 → X2 → … → Xn in the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signals along the trace Y1 → Y2 → … → Ym in the second axis direction.
Step 30: if the touch point is not scanned yet, wait for T + T1After time, the driving unit sequentially issues driving signals along the traces X1 → X2 → … → Xn in the first axis direction, and the receiving unit sequentially detects the driving signals along the traces Y1 → Y2 → … → Ym in the second axis direction.
Step 40: if stillNot scanning the touch point and waiting for T +2T1After time, the driving unit sequentially issues driving signals along the traces X1 → X2 → … → Xn in the first axis direction, and the receiving unit sequentially detects the driving signals along the traces Y1 → Y2 → … → Ym in the second axis direction.
Step 50: and so on, gradually prolonging the waiting time of scanning.
Step 60: if the touch point is not yet scanned, wait for T + nT1After time, the driving unit sequentially issues driving signals along the traces X1 → X2 → … → Xn in the first axis direction, and the receiving unit sequentially detects the driving signals along the traces Y1 → Y2 → … → Ym in the second axis direction.
If a touch point is scanned at any of the steps 10-60 described above, a new round of scanning can be started, returning to step 10. It will be understood by those skilled in the art that the subsequent steps after the touch point is scanned may be set according to actual requirements, and the step 10 is not necessarily required, and the step may be returned to any step before the current step.
In the present embodiment, T + nT may be set1The maximum waiting time is the maximum allowable interval time between two adjacent scanning. The maximum waiting time can be set according to the size of the actual touch screen. After step 60, if the touch point has not been swept after the maximum wait time, the wait time is no longer extended, and the maximum wait time T + nT is waited for in the following1And scanning the touch screen until a touch point is scanned.
Specifically, the T may be 5ms to 15ms, the T1 may be 10ms to 20ms, and the maximum waiting time may be 450ms to 550 ms. Namely, the waiting time is increased by 10ms-15ms each time from 5ms-15ms of the preset waiting time until the maximum waiting time of 450ms-550ms is reached.
In one embodiment, when the touch screen is scanned after waiting for the maximum waiting time at the second scanning frequency, no touch point is scanned yet, and after that, the touch screen is scanned at intervals. The meaning of the interval scanning is that when scanning, partial positions of a screen of the touch screen are scanned at certain intervals. And in the subsequent scanning, if the touch point is not scanned, gradually increasing the interval in scanning until the interval is increased to the maximum.
The following still takes the mutual capacitance touch screen shown in fig. 2 as an example to specifically describe the process of increasing the scanning interval:
step 70: and performing a half local scan at the second scanning frequency, as shown in fig. 4, wherein the specific scanning process is as follows:
701: the driving unit sends out a driving signal along the trace X1 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
702: idle (skip X2, i.e., do not scan X2).
703: the driving unit sends out a driving signal along the trace X3 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
704: idle (skip X4).
705: the driving unit sends out a driving signal along the trace X5 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
706: and so on, the driving unit sends out a driving signal along the trace Xn-1 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the traces Y1 → Y2 → … → Ym of the second axis direction.
707: the driving unit sends out a driving signal along the trace X2 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
708: idle (skip X3).
709: the driving unit sends out a driving signal along the trace X4 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
710: idle (skip X5).
711: and so on, the driving unit sends out a driving signal along the trace Xn of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the traces Y1 → Y2 → … → Ym of the second axis direction.
Step 80: if the touch point has not been scanned, a one-third partial scan is performed. As shown in fig. 5, the specific scanning process is as follows:
801: the driving unit sends out a driving signal along the trace X1 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
802: idle X2 (skip X2 and X3).
803: the driving unit sends out a driving signal along the trace X4 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
804: idle X2 (skip X5 and X6).
805: the driving unit sends out a driving signal along the trace X7 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
806: and so on, the driving unit sends out a driving signal along the trace Xn-2 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the traces Y1 → Y2 → … → Ym of the second axis direction.
807: the driving unit sends out a driving signal along the trace X2 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
808: idle X2 (skip X3 and X4).
809: the driving unit sends out a driving signal along the trace X5 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
810: idle X2 (skip X6 and X7).
811: and so on, the driving unit sends out a driving signal along the trace Xn-1 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the traces Y1 → Y2 → … → Ym of the second axis direction.
812: the driving unit sends out a driving signal along the trace X3 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
813: idle X2 (skip X4 and X5).
814: the driving unit sends out a driving signal along the trace X6 of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the trace Y1 → Y2 → … → Ym of the second axis direction.
815: idle X2 (skip X7 and X8).
816: and so on, the driving unit sends out a driving signal along the trace Xn of the first axis direction at a second scanning frequency, and the receiving unit sequentially detects the driving signal along the traces Y1 → Y2 → … → Ym of the second axis direction.
Step 90: and so on, gradually increasing the scanning interval.
Step 100: if the touch point has not been scanned, the scan is done at the maximum interval. Assuming that the maximum interval is one-third of a whole, the process of step 100 is identical to step 80. It will be appreciated by those skilled in the art that the maximum interval may be set according to practical circumstances.
If a touch point is scanned at any of the steps 70-100 above, a new round of scanning may be started before returning to step 70. It will be understood by those skilled in the art that the subsequent steps after the touch point is scanned may be set according to actual requirements, and do not necessarily need to return to any step before the step 70 and before the current step.
When the touch screen is actually scanned, the power consumption during scanning can be further reduced by increasing the interval during scanning, and the power use time is increased.
The above steps 10-100 are all exemplified by mutual capacitance touch screens, and those skilled in the art will understand that other types of touch screens, such as self-capacitance touch screens, are also applicable.
In an embodiment, the first scanning frequency is a preset scanning frequency, that is, a preset frequency for scanning the touch screen, and may be set according to an actual size of the touch screen. The second scanning frequency is the minimum scanning frequency for normal operation of the touch screen, that is, the set minimum scanning frequency for scanning the touch screen can be set according to actual conditions.
It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
step A: and scanning the touch screen at a first scanning frequency to detect whether a touch point exists on the touch screen.
And B: if the touch point is not detected, after waiting for a preset waiting time, scanning the touch screen at a second scanning frequency, wherein the second scanning frequency is less than the first scanning frequency;
and C: and if the touch point is not detected, prolonging the waiting time, and after waiting for the prolonged waiting time, scanning the touch screen at the second scanning frequency.
Step D: and C, repeating the step C until the waiting time reaches the maximum waiting time of normally scanning the touch screen, and scanning the touch screen at the second scanning frequency after waiting for the maximum waiting time.
In one embodiment, the touch screen comprises a plurality of first axis direction traces and a plurality of second axis direction traces, wherein the first axis direction traces are perpendicular to the second axis direction traces.
In one embodiment, the step of scanning the touch screen at a first scanning frequency comprises: and sequentially sending out driving signals to the plurality of traces in the first axial direction at the first scanning frequency, and sequentially detecting the driving signals by the plurality of traces in the second axial direction.
In one embodiment, if a touch point is detected, go back to step a or step B.
In one embodiment, the maximum latency for a normal scan of the touch screen is 450ms to 550 ms.
In one embodiment, the first scanning frequency is a preset scanning frequency, and the second scanning frequency is a minimum scanning frequency at which the touch screen normally operates.
In one embodiment, the wait time is extended from a preset wait time by a fixed time increment.
In one embodiment, the fixed time is 10ms to 20 ms.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
step A: and scanning the touch screen at a first scanning frequency to detect whether a touch point exists on the touch screen.
And B: if the touch point is not detected, after waiting for a preset waiting time, scanning the touch screen at a second scanning frequency, wherein the second scanning frequency is less than the first scanning frequency;
and C: and if the touch point is not detected, prolonging the waiting time, and after waiting for the prolonged waiting time, scanning the touch screen at the second scanning frequency.
Step D: and C, repeating the step C until the waiting time reaches the maximum waiting time of normally scanning the touch screen, and scanning the touch screen at the second scanning frequency after waiting for the maximum waiting time.
In one embodiment, the touch screen comprises a plurality of first axis direction traces and a plurality of second axis direction traces, wherein the first axis direction traces are perpendicular to the second axis direction traces.
In one embodiment, the step of scanning the touch screen at a first scanning frequency comprises: and sequentially sending out driving signals to the plurality of traces in the first axial direction at the first scanning frequency, and sequentially detecting the driving signals by the plurality of traces in the second axial direction.
In one embodiment, if a touch point is detected, go back to step a or step B.
In one embodiment, the maximum latency for a normal scan of the touch screen is 450ms to 550 ms.
In one embodiment, the first scanning frequency is a preset scanning frequency, and the second scanning frequency is a minimum scanning frequency at which the touch screen normally operates.
In one embodiment, the wait time is extended from a preset wait time by a fixed time increment.
In one embodiment, the fixed time is 10ms to 20 ms.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A touch screen scanning method, comprising:
step A: scanning the touch screen at a first scanning frequency, and detecting whether a touch point exists on the touch screen;
and B: if the touch point is not detected, scanning the touch screen at a second scanning frequency after a preset waiting time, wherein the second scanning frequency is less than the first scanning frequency, and the waiting time is the time interval between two adjacent scanning;
and C: if the touch point is not detected, prolonging the waiting time, and scanning the touch screen at the second scanning frequency;
step D: and C, repeating the step C until the waiting time reaches the maximum waiting time for normally scanning the touch screen, and scanning the touch screen at the second scanning frequency.
2. The touch screen scanning method of claim 1, wherein the touch screen comprises a plurality of first axis direction traces and a plurality of second axis direction traces, the first axis direction traces being perpendicular to the second axis direction traces.
3. The touch screen scanning method of claim 2, wherein the step of scanning the touch screen at the first scanning frequency comprises: and sequentially sending out driving signals to the plurality of traces in the first axial direction at the first scanning frequency, and sequentially detecting the driving signals by the plurality of traces in the second axial direction.
4. The touch screen scanning method of claim 1, wherein if a touch point is detected, returning to step a or step B.
5. The touch screen scanning method of any of claims 1-4, wherein the maximum waiting time for normal scanning of the touch screen is 450ms-550 ms.
6. The method according to any one of claims 1 to 4, wherein the first scanning frequency is a preset scanning frequency, and the second scanning frequency is a minimum scanning frequency for normal operation of the touch screen.
7. The touch screen scanning method according to any one of claims 1 to 4, wherein the waiting time is extended from a preset waiting time by a fixed time.
8. The touch screen scanning method of claim 7, wherein the fixed time is 10ms to 20 ms.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 8 when executing the computer program.
10. 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 8.
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