CN107463289A - A kind of calibration method of touch-screen, device, storage medium and terminal - Google Patents
A kind of calibration method of touch-screen, device, storage medium and terminal Download PDFInfo
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- CN107463289A CN107463289A CN201710620120.5A CN201710620120A CN107463289A CN 107463289 A CN107463289 A CN 107463289A CN 201710620120 A CN201710620120 A CN 201710620120A CN 107463289 A CN107463289 A CN 107463289A
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- value
- touch
- screen
- sensing unit
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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
Abstract
The embodiment of the invention discloses a kind of calibration method of touch-screen, device, storage medium and terminal.This method includes：The first difference of the capacitance present value and default initial reference capacitance with reference to sensing unit collection is obtained, the position that can not produce capacitance variation in terminal because of object contact is located at reference to sensing unit；The capacitance present value of the target sensing unit collection in touch-screen and the second difference of corresponding default initial capacitance value are obtained, default initial capacitance value and default initial reference capacitance are by target sensing unit and the capacitance gathered respectively with reference to sensing unit under same environmental condition；When the absolute value after the second difference and the first difference make the difference is less than predetermined threshold value, the reference capacitance value using the capacitance present value that target sensing unit gathers as touch-screen, to realize the calibration to touch-screen.The embodiment of the present invention can improve the degree of accuracy of touch screen calibration by using above-mentioned technical proposal.
Description
Technical field
The present embodiments relate to technical field of touch control, more particularly to a kind of calibration method of touch-screen, device, storage Jie
Matter and terminal.
Background technology
At present, touch-screen has turned into the standard configuration of most terminals, and terminal user can be relaxedly and rapidly real by touch-screen
Now to the various operations of terminal.
The touch-screen that existing terminal uses has resistive touch screen, capacitive touch screen and piezoelectric type touch screen etc., when with
When touch-screen is touched at family, touch-screen can detect touch information, and then identify the touch operation of user.Wherein, capacitive touch
Being most widely used for screen is touched, before terminal is dispatched from the factory or the moment such as start to capacitive touch screen, it is necessary to calibrate, to obtain
Accurate reference capacitance value.
The content of the invention
The embodiment of the present invention provides a kind of calibration method of touch-screen, device, storage medium and terminal, can optimize touch
The calibration program of screen.
In a first aspect, the embodiments of the invention provide a kind of calibration method of touch-screen, including：
The first difference of the capacitance present value and default initial reference capacitance with reference to sensing unit collection is obtained, wherein,
It is described to be located at the position that produce capacitance variation in terminal because of object contact with reference to sensing unit；
Obtain the of capacitance present value and the corresponding default initial capacitance value of the target sensing unit collection in touch-screen
Two differences, wherein, the default initial capacitance value and the default initial reference capacitance are by described under same environmental condition
Target sensing unit and the capacitance gathered respectively with reference to sensing unit；
When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, by the target sense
Reference capacitance value of the capacitance present value that unit gathers as the touch-screen is answered, to realize the calibration to the touch-screen.
Second aspect, the embodiments of the invention provide a kind of calibrating installation of touch-screen, including：
First difference acquisition module, for obtaining capacitance present value and default initial reference electricity with reference to sensing unit collection
First difference of capacitance, wherein, it is described to be located at reference to sensing unit in terminal and produce capacitance variation because object contacts
Position；
Second difference acquisition module, for obtain the target sensing unit in touch-screen collection capacitance present value with it is corresponding
Default initial capacitance value the second difference, wherein, the default initial capacitance value and the default initial reference capacitance are
By the target sensing unit and the capacitance gathered respectively with reference to sensing unit under same environmental condition；
Calibration module, it is less than predetermined threshold value for the absolute value after second difference and first difference make the difference
When, the reference capacitance value using the capacitance present value of target sensing unit collection as the touch-screen, to realize to described
The calibration of touch-screen.
The third aspect, the embodiments of the invention provide a kind of computer-readable recording medium, is stored thereon with computer journey
Sequence, the calibration method of touch-screen as described in the present embodiment of the invention is realized when the program is executed by processor.
Fourth aspect, the embodiments of the invention provide a kind of terminal, including touch-screen, with reference to sensing unit, memory, place
The computer program managed device and storage on a memory and can run in processor, computer program described in the computing device
The calibration method of the touch-screens of Shi Shixian as described in the present embodiment of the invention.
The calibration program of the touch-screen provided in the embodiment of the present invention, obtain the capacitance present value with reference to sensing unit collection
With the first difference of default initial reference capacitance, obtain touch-screen in target sensing unit collection capacitance present value with it is right
Second difference of the default initial capacitance value answered, absolute value after the second difference makes the difference with the first difference are less than predetermined threshold value
When, illustrate that the capacitance present value of target sensing unit collection is not affected by the interference such as touch or conductive body, target can be sensed single
Reference capacitance value of the capacitance present value of member collection as touch-screen, to realize the calibration to touch-screen.By using above-mentioned skill
Art scheme, in the calibration process of touch-screen, by by the capacitance variation of the target sensing unit of touch-screen with cannot respond to
The change of the capacitance for the reference sensing unit that user touches compares, and can recognize that touch-screen by skin or other conductive materials
The situation of the touches such as body, so as to improve the degree of accuracy of touch screen calibration.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the calibration method of touch-screen provided in an embodiment of the present invention；
Fig. 2 is a kind of position view with reference to sensing unit provided in an embodiment of the present invention；
Fig. 3 be it is provided in an embodiment of the present invention another refer to sensing unit position view；
Fig. 4 be it is provided in an embodiment of the present invention another refer to sensing unit position view；
Fig. 5 is the schematic flow sheet of the calibration method of another touch-screen provided in an embodiment of the present invention；
Fig. 6 is the schematic flow sheet of the calibration method of another touch-screen provided in an embodiment of the present invention；
Fig. 7 is the structured flowchart of the calibrating installation of touch-screen provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation of terminal provided in an embodiment of the present invention.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.It is appreciated that
It is that specific embodiment described herein is used only for explaining the present invention, rather than limitation of the invention.Further need exist for illustrating
, for the ease of description, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although each step is described as the processing of order, many of which by flow chart
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the order of each step can be rearranged.When its operation
The processing can be terminated during completion, it is also possible to the additional step being not included in accompanying drawing.The processing can be with
Corresponding to method, function, code, subroutine, subprogram etc..
Fig. 1 is a kind of schematic flow sheet of the calibration method of touch-screen provided in an embodiment of the present invention, and this method can be by
The control device of screen display performs, and wherein the device can be realized by software and/or hardware, can typically integrate in the terminal.Such as
Shown in Fig. 1, this method includes：
The capacitance present value and the first of default initial reference capacitance that step 101, acquisition gather with reference to sensing unit are poor
Value.
Wherein, it is described to be located at the position that produce capacitance variation in terminal because of object contact with reference to sensing unit.
Exemplary, the terminal in the embodiment of the present invention may include mobile phone, tablet personal computer, media player and notebook
The equipment that computer etc. is provided with capacitive touch screen.
Be configured with the terminal of capacitive touch screen before dispatching from the factory, start when or other need to carry out touch screen calibration when
Carve, terminal can record the reference capacitance value of each position when touch-screen is not touched, when user touches touch-screen, touch
Screen senses the change of electric capacity, when changing value (difference between capacitance present value and reference capacitance value, usually absolute value) is super
When crossing touch decision threshold, illustrate to detect that user touches screen, report touch point, report touch event.When user touches
During screen, the touch information that touch-screen is recognized comprises at least horizontal stroke (x) coordinate of touch point and vertical (y) coordinate, may also include
The size (including long and width etc.) of contact surface and the fingers number of touch etc., after touch information is recognized, pass through input systems
Unite and report coordinate information to upper strata, touch information can be utilized to detect the touch operation that the somewhere of screen occurs, namely can
Get touch location.
As shown in the above, whether reference capacitance value is accurately to determine that capacitive touch screen determines whether to detect touch
Operation and the important parameter of detection touch location, so needing to ensure no skin or other conductive bodies in a calibration process
Deng the interference to touch-screen.Calibration before dispatching from the factory typically is carried out in factory, and production environment is relatively stable, and above-mentioned interference be present can
Energy property is relatively low, and the reference capacitance value for now calibrating to obtain is typically relatively more accurate.However, the capacitance of capacitive touch screen easily by
To the influence of environmental factor, the temperature and humidity of such as environment, in different environments, using same reference capacitance
Value is inappropriate (as using the reference capacitance value for calibrating to obtain before dispatching from the factory), because reference capacitance value is can be with environment
Change and change, so, after terminal is dispatched from the factory, still need to calibrate touch-screen during the use of user.In general,
It can be calibrated in starting up of terminal, triggering calibration can be also operated by user, can also be automatic when detecting that environment changes
Triggering calibration.Common, after touch screen calibration event is triggered, it is current that terminal can control the sensing unit in touch-screen to gather
Capacitance, using the capacitance present value collected as reference capacitance value.But when sensing unit gathers capacitance, may
The various disturbed conditions of generation, as touch-screen is inadvertently held or covered to user's palm, or metal contact it is tactile
Screen etc. is touched, in the case of these, the capacitance of collection should not be referred to as reference capacitance value, but terminal itself is can not to know to be
No there occurs these situations, therefore, the embodiment of the present invention introduces new part in the terminal, i.e., with reference to sensing unit.
Exemplary, the reference sensing unit in the embodiment of the present invention, which is located in terminal, to produce electricity because object contacts
The position of capacitance change, such as the touch-screen inner side, the screen frame inner side of the terminal, the end of the terminal can be located at
On the inside of the center at end or on the mainboard of the terminal, these positions will not be touched by user can not leading by the terminal external world
Body contacts.Target sensing unit in touch-screen can realize touch detection by touch-control cabling and touch control electrode, in order to ensure mesh
Sensing unit and the uniformity with reference to sensing unit structure are marked, touch-control cabling and touch control electrode can be also included with reference to sensing unit,
Physical isolation can be realized with the touch-control cabling and touch control electrode of target sensing unit.
It is understood that with reference to sensing unit particular location be not limited to it is above-mentioned several, it is above-mentioned several only as showing
Meaning property explanation.Fig. 2 is a kind of position view with reference to sensing unit provided in an embodiment of the present invention, as shown in Fig. 2 with reference to sense
Unit 202 (being represented by dotted lines) is answered to be located at the inner side of touch-screen 201, positive invisible, the specific horizontal direction position of touch-screen 201
Put (exemplified by when terminal is kept flat) and vertical direction position does not limit, horizontal level can be touch-screen 201 as shown in Figure 2
The upper right corner, vertical direction position can have a lot, can be according to the different and different of screen type.Touched for liquid crystal display
For screen, it can be arranged in side or screen protection cover plate of the backlight away from exiting surface close to terminal with reference to sensing unit
The side of mainboard；Touch-screen is shown for Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
Say, can also be arranged in screen protection cover plate close to the side of terminal mainboard.Fig. 3 for it is provided in an embodiment of the present invention another
With reference to the position view of sensing unit, as shown in figure 3, being located at the center of terminal with reference to sensing unit 302 (being represented by dotted lines)
301 inner sides.Fig. 4 be it is provided in an embodiment of the present invention another refer to sensing unit position view, as shown in figure 4, with reference to
Sensing unit 402 (being represented by dotted lines) is located at the inner side of screen frame 401 of terminal.
Exemplary, default initial reference capacitance can be the electric capacity of the reference sensing unit collected before terminal is dispatched from the factory
Value, and the default initial capacitance value described in default initial reference capacitance and subsequent step is by referring under same environmental condition
The capacitance that sensing unit and target sensing unit gather respectively, thus in subsequent step target sensing unit default initial electricity
Capacitance can also be the capacitance of the target sensing unit collected before terminal is dispatched from the factory.In addition, default initial reference capacitance
The capacitance collected when can be last time screen calibration, it is corresponding, preset in subsequent step on initial capacitance value can also be
The reference capacitance value that secondary screen obtains when calibrating.In the embodiment of the present invention, target sensing unit can be institute's thoughts in touch-screen
The sensing unit for answering any one or preassigned position in unit to fix.
In this step, the capacitance present value with reference to sensing unit collection is obtained, by the current capacitance and default initial ginseng
Examine capacitance to make the difference, obtain the first difference.Due to reference to sensing unit capacitance variation can not be produced because object contacts, so
First difference can reflect influence of the environmental change to the capacitance with reference to sensing unit collection.For example, default initial reference electricity
Capacitance is 15, and capacitance present value is 20, then caused by the first difference can be considered that environmental change influences for 5,5.Wherein, capacitance
It can be represented with ADC value (also known as AD values or ADC values).
Step 102, obtain capacitance present value and corresponding default initial electricity that the target sensing unit in touch-screen gathers
Second difference of capacitance.
Wherein, the default initial capacitance value and the default initial reference capacitance are by described under same environmental condition
Target sensing unit and the capacitance gathered respectively with reference to sensing unit.
Exemplary, the particular location of target sensing unit can be the position easily touched in touch-screen, such as touch
Center or edge position of screen etc..
In this step, obtain touch-screen in target sensing unit collection capacitance present value, by the current capacitance with
Corresponding default initial capacitance value makes the difference, and obtains the second difference.Exemplary, the sensing unit in touch-screen generally comprises more
It is individual, can be in that matrix form is distributed, under equal conditions the capacitance of each sensing unit collection is essentially identical, but is not excluded for because individual
Body difference causes the capacitance of different sensing unit collections different.The target sensing for being used to calculate the second difference in the present embodiment is single
Member can be one or multiple.For example, when the target sensing unit for calculating the second difference is one, it is assumed that
Corresponding default initial capacitance value is 15, and capacitance present value is 21, then the second difference is 6；Assuming that corresponding default initial electricity
Capacitance is 15, and capacitance present value is 60, then the second difference is 45.
Step 103, when the absolute value after second difference and first difference make the difference is less than predetermined threshold value, by institute
Reference capacitance value of the capacitance present value of target sensing unit collection as the touch-screen is stated, to realize to the touch-screen
Calibration.
Exemplary, predetermined threshold value can be true according to influence tolerance of the environmental change to the capacitance of different sensing units
It is fixed, for example, influence range of tolerable variance of the environmental change to capacitance is -5 to 5, i.e., it is different in the case of environmental change amount identical
Sensing unit gap of the capacitance between the changing value under the influence of environmental change between -5 to 5.It is appreciated that
It is that predetermined threshold value is typically smaller, the poor absolute value of the second difference and the first difference can be calculated in the embodiment of the present invention, that
Predetermined threshold value for example can be 5.
The variable quantity of capacitance is generally bigger after being contacted due to target sensing unit by conductors such as skins, such as can exceed
40 is even more big, so when above-mentioned absolute value is less than predetermined threshold value (between the difference 5 of the second difference 6 and first described above
Difference absolute value be 1, less than 5), it is believed that the second difference be as caused by environmental change, and unprovoked by skin or other lead
Electric object etc. touches caused, then the capacitance present value of now target sensing unit collection is accurate, can be used as this
The reference capacitance value of secondary calibration.
Exemplary, the reference capacitance using the capacitance present value of target sensing unit collection as the touch-screen
Value can be specifically the capacitance present value using target sensing unit collection as all sensing units in the touch-screen
Reference capacitance value.So setting is advantageous in that, can improve calibration speed.
In addition, obtaining the capacitance present value of the target sensing unit collection in touch-screen may include to obtain the institute in touch-screen
There is the capacitance present value that sensing unit gathers.Using the capacitance present value of target sensing unit collection as the touch-screen
Reference capacitance value, it may include：It is single using the capacitance present value of all sensing units collection in touch-screen as all sensings
Reference capacitance value corresponding to member, i.e., for any one target sensing unit, the capacitance present value conduct gathered should
Reference capacitance value corresponding to target sensing unit.So setting is advantageous in that, embodies the difference between different target sensing unit
The opposite sex, make reference capacitance value corresponding to each target sensing unit more accurate, further improve the degree of accuracy of calibration.
The calibration method of touch-screen provided in an embodiment of the present invention, obtain with reference to sensing unit collection capacitance present value with
First difference of default initial reference capacitance, obtain the capacitance present value of target sensing unit collection in touch-screen with it is corresponding
Default initial capacitance value the second difference, when the absolute value after the second difference and the first difference make the difference is less than predetermined threshold value,
Illustrate that the capacitance present value of target sensing unit collection is not affected by the interference such as touch or conductive body, target sensing unit can be adopted
Reference capacitance value of the capacitance present value of collection as touch-screen, to realize the calibration to touch-screen.By using above-mentioned technical side
Case, in the calibration process of touch-screen, by the way that the capacitance variation of the target sensing unit of touch-screen and user will be cannot respond to
The change of the capacitance of the reference sensing unit of touch compares, and can recognize that touch-screen by skin or other conductive bodies etc.
The situation of touch, so as to improve the degree of accuracy of touch screen calibration.
In one embodiment, when above-mentioned absolute value is more than or equal to predetermined threshold value (the second difference 45 described above with
Poor absolute value between first difference 5 is 40, more than 5), it is believed that touch-screen may be by skin or other conductive bodies etc.
Touch, cause absolute value excessive, then the capacitance present value of now target sensing unit collection is inaccurate, should not be used as this
The reference capacitance value of secondary calibration.
Optionally, absolute value after second difference and first difference make the difference is more than or equal to predetermined threshold value
When, control the target sensing unit to resurvey capacitance present value, and reacquire working as the target sensing unit collection
Second difference of preceding capacitance and corresponding default initial capacitance value.After reacquiring the second difference, then judge that new second is poor
Whether value is less than predetermined threshold value with the poor absolute value of the first difference, if being less than, current electricity that target sensing unit is gathered
Reference capacitance value of the capacitance as the touch-screen, otherwise, the second new difference is obtained again.So setting is advantageous in that,
Controllable target sensing unit repeated acquisition capacitance, when the capacitance of collection meets the requirements, illustrate skin etc. is not present
Object disturbs, and obtains accurate reference capacitance value.
Optionally, absolute value after second difference and first difference make the difference is more than or equal to predetermined threshold value
When, the target sensing unit collection capacitance present value on the basis of add first difference, using gained and as
The reference capacitance value of the touch-screen.So setting is advantageous in that, the first difference as caused by environmental factor is directly added
Onto the capacitance of target sensing unit, the capacitance that target sensing unit gathers in touch-screen is compensated, is rapidly obtained current
Reference capacitance value under environment, can improve calibration efficiency.
In one embodiment, the target sensing unit is multiple that multiple target sensing units can be in touch-screen
Part or all of sensing unit in whole sensing units.For example, whole sensing units are 200, then multiple target sensings
Unit can be 50 or 200.When multiple target sensing units be whole sensing units in part when, its
The distributing position embodiment of the present invention in touch-screen is not especially limited, and can be uniformly distributed, such as can be according to row or column
It is spaced apart；Can also be uneven distribution, such as central area distribution density and fringe region distribution density are more than other areas
The distribution density in domain.When target sensing unit is multiple, the target sensing unit obtained in touch-screen gathers current
Second difference of capacitance and corresponding default initial capacitance value, including：The multiple target sensing units obtained in touch-screen are adopted
Multiple capacitance present values of collection and multiple second differences of corresponding default initial capacitance value.When second difference and described the
One difference make the difference after absolute value when being less than predetermined threshold value, using the capacitance present value of target sensing unit collection as described in
The reference capacitance value of touch-screen, including：The absolute value after average value of multiple second differences makes the difference with first difference
During less than predetermined threshold value, the benchmark using multiple capacitance present values of the multiple target sensing unit collection as the touch-screen
Capacitance；Or the absolute value after average value of the absolute value of multiple second differences makes the difference with first difference is less than in advance
If during threshold value, the reference capacitance using multiple capacitance present values of the multiple target sensing unit collection as the touch-screen
Value.For the second difference, first take absolute value calculates average value and is advantageous in that again, avoids electric capacity between different target sensing unit
The gain of value is cancelled out each other, and makes judged result more accurate.
Fig. 5 is the schematic flow sheet of the calibration method of another touch-screen provided in an embodiment of the present invention, is sensed with target
Exemplified by unit is one, this method comprises the following steps：
Step 501, capacitance present value A ' and default initial reference capacitance A with reference to sensing unit collection are obtained, and counted
Calculate the first difference a=A '-A.
Initial capacitance value B is preset corresponding to target sensing unit in step 502, acquisition touch-screen.
Step 503, the capacitance present value B ' for obtaining the collection of target sensing unit.
Step 504, calculate the second difference b=B '-B.
Step 505, judge | b-a | whether less than predetermined threshold value, if so, then performing step 506；Otherwise, return and perform step
Rapid 503.
Step 506, the reference capacitance value using B ' as all sensing units in touch-screen, to realize to the touch-screen
Calibration.
The embodiment of the present invention illustrates by taking a target sensing unit as an example, is ensureing the degree of accuracy of touch screen calibration
Meanwhile it can also improve calibration efficiency.
Exemplary, step 506 can also replace with：Obtain the capacitance present value of all sensing unit collections in touch-screen
B1’、B2’……Bn', wherein, n is the total quantity of sensing unit in touch-screen, and all capacitance present values gathered are made respectively
For reference capacitance value corresponding to all sensing units, to realize the calibration to the touch-screen.In addition, also can in step 503,
Capacitance present value with regard to obtaining all sensing unit collections.
Fig. 6 is the schematic flow sheet of the calibration method of another touch-screen provided in an embodiment of the present invention, is sensed with target
Exemplified by unit is all sensing unit of touch-screen, this method comprises the following steps：
Step 601, capacitance present value A ' and default initial reference capacitance A with reference to sensing unit collection are obtained, and counted
Calculate the first difference a=A '-A.
Initial capacitance value B is preset corresponding to all sensing units difference in step 602, acquisition touch-screen1、B2……Bn。
Step 603, the capacitance present value B for obtaining all sensing unit collections1’、B2’……Bn’。
Step 604, calculate multiple second difference b1=B1’-B1、b2=B2’-B2……bn=Bn’-Bn。
Step 605, calculate multiple second differences absolute value average value m=(| b1|+|b1|+……+|bn|)/n。
Step 606, judge | m-a | whether less than predetermined threshold value, if so, then performing step 607；Otherwise, step is performed
608。
Step 607, by B1’、B2’……Bn' respectively as the reference capacitance value of all sensing units in touch-screen, with reality
Now to the calibration of the touch-screen.
Step 608, by B1’+a、B2’+a……Bn'+a respectively as all sensing units in touch-screen reference capacitance
Value, to realize the calibration to the touch-screen.
The embodiment of the present invention illustrates so that target sensing unit is all sensing units in touch-screen as an example, further
Improve the degree of accuracy and the calibration efficiency of touch screen calibration.
Fig. 7 is the structured flowchart of the calibrating installation of touch-screen provided in an embodiment of the present invention, the device can by software and/or
Hardware is realized, is typically integrated in terminal, can be carried out the calibration of touch-screen by performing the calibration method of touch-screen.Such as Fig. 7
Shown, the device includes：
First difference acquisition module 701, for obtaining capacitance present value and default initial ginseng with reference to sensing unit collection
The first difference of capacitance is examined, wherein, it is described to be located at reference to sensing unit in terminal and produce capacitance because object contacts
The position of change；
Second difference acquisition module 702, for obtain the target sensing unit in touch-screen collection capacitance present value with
Second difference of corresponding default initial capacitance value, wherein, the default initial capacitance value and the default initial reference electric capacity
Be worth under same environmental condition by the target sensing unit and the capacitance gathered respectively with reference to sensing unit；
Calibration module 703, it is less than default threshold for the absolute value after second difference and first difference make the difference
During value, the reference capacitance value using the capacitance present value of target sensing unit collection as the touch-screen, to realize to institute
State the calibration of touch-screen.
The calibrating installation of touch-screen provided in an embodiment of the present invention, obtain with reference to sensing unit collection capacitance present value with
First difference of default initial reference capacitance, obtain the capacitance present value of target sensing unit collection in touch-screen with it is corresponding
Default initial capacitance value the second difference, when the absolute value after the second difference and the first difference make the difference is less than predetermined threshold value,
Illustrate that the capacitance present value of target sensing unit collection is not affected by the interference such as touch or conductive body, target sensing unit can be adopted
Reference capacitance value of the capacitance present value of collection as touch-screen, to realize the calibration to touch-screen.By using above-mentioned technical side
Case, in the calibration process of touch-screen, by the way that the capacitance variation of the target sensing unit of touch-screen and user will be cannot respond to
The change of the capacitance of the reference sensing unit of touch compares, and can recognize that touch-screen by skin or other conductive bodies etc.
The situation of touch, so as to improve the degree of accuracy of touch screen calibration.
Optionally, the second difference acquisition module can be additionally used in：After second difference and first difference make the difference
When absolute value is more than or equal to predetermined threshold value, the target sensing unit is controlled to resurvey capacitance present value, and reacquire
The capacitance present value of the target sensing unit collection and the second difference of corresponding default initial capacitance value.
Optionally, calibration module can be additionally used in：Absolute value after second difference makes the difference with first difference is big
It is poor plus described first on the basis of the capacitance present value of the target sensing unit collection when predetermined threshold value
Value, using gained and as the touch-screen reference capacitance value.
Optionally, the target sensing unit is multiple；
The capacitance present value and corresponding default initial capacitance value of target sensing unit collection in the acquisition touch-screen
The second difference, including：
Obtain multiple capacitance present values of multiple target sensing units collection in touch-screen and corresponding default initial electricity
Multiple second differences of capacitance；
When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, by the target sense
Reference capacitance value of the capacitance present value that unit gathers as the touch-screen is answered, including：
, will when the absolute value after the average value of multiple second differences and first difference make the difference is less than predetermined threshold value
Reference capacitance value of the multiple capacitance present values of the multiple target sensing unit collection as the touch-screen；Or when more
The average value of the absolute value of individual second difference and first difference make the difference after absolute value when being less than predetermined threshold value, will be described more
Reference capacitance value of the multiple capacitance present values of individual target sensing unit collection as the touch-screen.
Optionally, the reference capacitance value using the capacitance present value of target sensing unit collection as the touch-screen,
Including：
Benchmark using the capacitance present value of target sensing unit collection as all sensing units in the touch-screen
Capacitance.
Optionally, the device also includes capacitance acquisition module, for obtaining all sensing units in the touch-screen
The capacitance present value of collection；
Reference capacitance value using the capacitance present value of target sensing unit collection as the touch-screen, including：
Using benchmark corresponding to the capacitance present value as all sensing units of all sensing unit collections
Capacitance.
Optionally, it is described to be located at reference to sensing unit on the inside of the touch-screen of the terminal, in the screen frame of the terminal
On the mainboard of side, the center inner side of the terminal or the terminal.
The embodiment of the present invention also provides a kind of storage medium for including computer executable instructions, and the computer can perform
Instruct includes when being performed by computer processor for the response method for performing touch operation, this method：
The first difference of the capacitance present value and default initial reference capacitance with reference to sensing unit collection is obtained, wherein,
It is described to be located at the position that produce capacitance variation in terminal because of object contact with reference to sensing unit；
Obtain the of capacitance present value and the corresponding default initial capacitance value of the target sensing unit collection in touch-screen
Two differences, wherein, the default initial capacitance value and the default initial reference capacitance are by described under same environmental condition
Target sensing unit and the capacitance gathered respectively with reference to sensing unit；
When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, by the target sense
Reference capacitance value of the capacitance present value that unit gathers as the touch-screen is answered, to realize the calibration to the touch-screen.
Storage medium --- any various types of memory devices or storage device.Term " storage medium " is intended to wrap
Include：Install medium, such as CD-ROM, floppy disk or magnetic tape equipment；Computer system memory or random access memory, such as
DRAM, DDR RAM, SRAM, EDO RAM, blue Bath (Rambus) RAM etc.；Nonvolatile memory, such as flash memory, magnetizing mediums
(such as hard disk or optical storage)；Memory component of register or other similar types etc..Storage medium can also include other
The memory of type or its combination.In addition, storage medium can be located at program in the first computer system being wherein performed,
Or can be located in different second computer systems, second computer system is connected to the by network (such as internet)
One computer system.Second computer system can provide programmed instruction and be used to perform to the first computer." storage is situated between term
Matter " can include may reside within diverse location two of (such as in different computer systems by network connection) or
More storage mediums.Storage medium can store the programmed instruction that can be performed by one or more processors and (such as implement
For computer program).
Certainly, a kind of storage medium for including computer executable instructions that the embodiment of the present invention is provided, its computer
The calibration operation for the touch-screen that executable instruction is not limited to the described above, it can also carry out what any embodiment of the present invention was provided
Associative operation in the calibration of touch-screen.
The embodiments of the invention provide a kind of terminal, the school of touch-screen provided in an embodiment of the present invention can be integrated in the terminal
Standard apparatus.Fig. 8 is a kind of structural representation of terminal provided in an embodiment of the present invention.As shown in figure 8, the terminal can include：
Housing (not shown), touch-screen 812, with reference to sensing unit (not shown), memory 801, central processing unit
(Central Processing Unit, CPU) 802 (also known as processor, hereinafter referred to as CPU), circuit board (not shown) and
Power circuit (not shown).The circuit board is placed in the interior volume that the housing surrounds；The CPU802 and described
Memory 801 is arranged on the circuit board；The power circuit, for each circuit or the device power supply for the terminal；
The memory 801, for storing executable program code；What the CPU802 was stored by reading in the memory 801
Executable program code runs computer program corresponding with the executable program code, to realize following steps：
The first difference of the capacitance present value and default initial reference capacitance with reference to sensing unit collection is obtained, wherein,
It is described to be located at the position that produce capacitance variation in terminal because of object contact with reference to sensing unit；
Obtain the of capacitance present value and the corresponding default initial capacitance value of the target sensing unit collection in touch-screen
Two differences, wherein, the default initial capacitance value and the default initial reference capacitance are by described under same environmental condition
Target sensing unit and the capacitance gathered respectively with reference to sensing unit；
When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, by the target sense
Reference capacitance value of the capacitance present value that unit gathers as the touch-screen is answered, to realize the calibration to the touch-screen.
The terminal also includes：Peripheral Interface 803, RF (Radio Frequency, radio frequency) circuit 805, voicefrequency circuit
806th, loudspeaker 811, power management chip 808, input/output (I/O) subsystem 809, touch-screen 812, other input/controls
Equipment 810 and outside port 804, these parts are communicated by one or more communication bus or signal wire 807.
It should be understood that graphic terminal 800 is only an example of terminal, and terminal 800 can have than figure
Shown in more or less parts, two or more parts can be combined, or can have different portions
Part configures.Various parts shown in figure can be including one or more signal transactings and/or application specific integrated circuit
Hardware, software or hardware and software combination in realize.
Below with regard to the present embodiment provide the terminal for touch screen calibration be described in detail, the terminal using mobile phone as
Example.
Memory 801, the memory 801 can be accessed by CPU802, Peripheral Interface 803 etc., and the memory 801 can
Including high-speed random access memory, can also include nonvolatile memory, such as one or more disk memories,
Flush memory device or other volatile solid-state parts.
The input of equipment and output peripheral hardware can be connected to CPU802 and deposited by Peripheral Interface 803, the Peripheral Interface 803
Reservoir 801.
I/O subsystems 809, the I/O subsystems 809 can be by the input/output peripherals in equipment, such as touch-screen 812
With other input/control devicess 810, Peripheral Interface 803 is connected to.I/O subsystems 809 can include the He of display controller 8091
For controlling one or more input controllers 8092 of other input/control devicess 810.Wherein, one or more input controls
Device 8092 processed receives electric signal from other input/control devicess 810 or sends electric signal to other input/control devicess 810,
Other input/control devicess 810 can include physical button (pressing button, rocker buttons etc.), dial, slide switch, behaviour
Vertical pole, click on roller.What deserves to be explained is input controller 8092 can with it is following any one be connected：Keyboard, infrared port,
The instruction equipment of USB interface and such as mouse.
Touch-screen 812, the touch-screen 812 are the input interface and output interface between user terminal and user, can
It can include figure, text, icon, video etc. to user, visual output depending on output display.
Display controller 8091 in I/O subsystems 809 receives electric signal from touch-screen 812 or sent out to touch-screen 812
Electric signals.Touch-screen 812 detects the contact on touch-screen, and the contact detected is converted to and shown by display controller 8091
The interaction of user interface object on touch-screen 812, that is, realize man-machine interaction, the user interface being shown on touch-screen 812
Icon that object can be the icon of running game, be networked to corresponding network etc..What deserves to be explained is equipment can also include light
Mouse, light mouse is not show the touch sensitive surface visually exported, or the extension of the touch sensitive surface formed by touch-screen.
RF circuits 805, it is mainly used in establishing the communication of mobile phone and wireless network (i.e. network side), realizes mobile phone and wireless network
The data receiver of network and transmission.Such as transmitting-receiving short message, Email etc..Specifically, RF circuits 805 receive and send RF letters
Number, RF signals are also referred to as electromagnetic signal, and RF circuits 805 convert electrical signals to electromagnetic signal or electromagnetic signal is converted into telecommunications
Number, and communicated by the electromagnetic signal with communication network and other equipment.RF circuits 805 can include being used to perform
The known circuit of these functions, it includes but is not limited to antenna system, RF transceivers, one or more amplifiers, tuner, one
Individual or multiple oscillators, digital signal processor, CODEC (COder-DECoder, coder) chipset, user identify mould
Block (Subscriber Identity Module, SIM) etc..
Voicefrequency circuit 806, it is mainly used in receiving voice data from Peripheral Interface 803, the voice data is converted into telecommunications
Number, and the electric signal is sent to loudspeaker 811.
Loudspeaker 811, for the voice signal for receiving mobile phone from wireless network by RF circuits 805, it is reduced to sound
And play the sound to user.
Power management chip 808, the hardware for being connected by CPU802, I/O subsystem and Peripheral Interface are powered
And power management.
Terminal provided in an embodiment of the present invention, it is single by the way that the target of touch-screen is sensed in the calibration process of touch-screen
Compared with the change of the capacitance of reference sensing unit of the capacitance variation of member with cannot respond to user's touch, it can recognize that
Touch-screen is by the situation of the touch such as skin or other conductive bodies, so as to improve the degree of accuracy of touch screen calibration.
The executable present invention of calibrating installation, storage medium and terminal of the touch-screen provided in above-described embodiment is any to be implemented
The calibration method for the touch-screen that example is provided, possess and perform the corresponding functional module of this method and beneficial effect.Not in above-mentioned reality
The ins and outs of detailed description in example are applied, reference can be made to the calibration method for the touch-screen that any embodiment of the present invention is provided.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
- A kind of 1. calibration method of touch-screen, it is characterised in that including：The first difference of the capacitance present value and default initial reference capacitance with reference to sensing unit collection is obtained, wherein, it is described The position of capacitance variation can not be produced because of object contact by being located at reference to sensing unit in terminal；The capacitance present value and the second of corresponding default initial capacitance value that target sensing unit in acquisition touch-screen gathers are poor Value, wherein, the default initial capacitance value and the default initial reference capacitance are by the target under same environmental condition Sensing unit and the capacitance gathered respectively with reference to sensing unit；When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, the target is sensed single Reference capacitance value of the capacitance present value of member collection as the touch-screen, to realize the calibration to the touch-screen.
- 2. according to the method for claim 1, it is characterised in that also include：When the absolute value after second difference and first difference make the difference is more than or equal to the predetermined threshold value, institute is controlled State target sensing unit and resurvey capacitance present value, and reacquire the capacitance present value of target sensing unit collection with Second difference of corresponding default initial capacitance value.
- 3. according to the method for claim 1, it is characterised in that also include：When the absolute value after second difference and first difference make the difference is more than or equal to the predetermined threshold value, described Target sensing unit collection capacitance present value on the basis of add first difference, using gained and as the touch-screen Reference capacitance value.
- 4. according to the method for claim 1, it is characterised in that the target sensing unit is multiple；The of capacitance present value and the corresponding default initial capacitance value of target sensing unit collection in the acquisition touch-screen Two differences, including：Obtain multiple capacitance present values of multiple target sensing units collection in touch-screen and corresponding default initial capacitance value Multiple second differences；When the absolute value after second difference and first difference make the difference is less than predetermined threshold value, the target is sensed single Reference capacitance value of the capacitance present value of member collection as the touch-screen, including：, will when the absolute value after the average value of the multiple second difference and first difference make the difference is less than predetermined threshold value Reference capacitance value of the multiple capacitance present values of the multiple target sensing unit collection as the touch-screen；Or work as institute State the average value of the absolute value of multiple second differences and first difference make the difference after absolute value when being less than predetermined threshold value, by institute State reference capacitance value of the multiple capacitance present values of multiple target sensing unit collections as the touch-screen.
- 5. according to the method for claim 1, it is characterised in that make the capacitance present value of target sensing unit collection For the reference capacitance value of the touch-screen, including：Reference capacitance using the capacitance present value of target sensing unit collection as all sensing units in the touch-screen Value.
- 6. according to the method for claim 1, it is characterised in that also include：Obtain the capacitance present value of all sensing units collection in the touch-screen；Reference capacitance value using the capacitance present value of target sensing unit collection as the touch-screen, including：Using reference capacitance corresponding to the capacitance present value as all sensing units of all sensing unit collections Value.
- 7. according to any described methods of claim 1-6, it is characterised in that described to be located at the terminal with reference to sensing unit On the inside of touch-screen, on the inside of the screen frame of the terminal, on the inside of the center of the terminal or on the mainboard of the terminal.
- A kind of 8. calibrating installation of touch-screen, it is characterised in that including：First difference acquisition module, for obtaining capacitance present value and default initial reference capacitance with reference to sensing unit collection The first difference, wherein, it is described to be located at reference to sensing unit in terminal and produce the position of capacitance variation because object contacts Put；Second difference acquisition module, for obtain the target sensing unit in touch-screen collection capacitance present value with it is corresponding pre- If the second difference of initial capacitance value, wherein, the default initial capacitance value and the default initial reference capacitance are same By the target sensing unit and the capacitance gathered respectively with reference to sensing unit under environmental condition；Calibration module, for when the absolute value after second difference and first difference make the difference is less than predetermined threshold value, inciting somebody to action Reference capacitance value of the capacitance present value of the target sensing unit collection as the touch-screen, to realize to the touch-screen Calibration.
- 9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is held by processor The calibration method of the touch-screen as described in any in claim 1-7 is realized during row.
- 10. a kind of terminal, it is characterised in that including touch-screen, with reference to sensing unit, memory and is stored in storage at processor And can be in the computer program of processor operation on device, it is characterised in that real during computer program described in the computing device The now calibration method of the touch-screen as described in claim 1-7 is any.
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| CN201710620120.5A CN107463289B (en) | 2017-07-26 | 2017-07-26 | Calibration method and device of touch screen, storage medium and terminal |
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| CN201710620120.5A CN107463289B (en) | 2017-07-26 | 2017-07-26 | Calibration method and device of touch screen, storage medium and terminal |
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| CN108387688A (en) * | 2018-02-23 | 2018-08-10 | 广州视源电子科技股份有限公司 | Sensor calibration and gas detection method, device and equipment, readable storage medium storing program for executing |
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| CN109189266A (en) * | 2018-09-05 | 2019-01-11 | 芯海科技（深圳）股份有限公司 | False-touch prevention method, apparatus, equipment and the storage medium of gripping device |
| CN109343736B (en) * | 2018-09-26 | 2021-03-23 | Oppo广东移动通信有限公司 | Proximity recognition method and device |
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| CN110703947A (en) * | 2019-09-30 | 2020-01-17 | Oppo（重庆）智能科技有限公司 | Touch screen correction method and device, electronic equipment and storage medium |
| CN110703947B (en) * | 2019-09-30 | 2022-09-02 | Oppo（重庆）智能科技有限公司 | Touch screen correction method and device, electronic equipment and storage medium |
| CN112571461B (en) * | 2020-12-07 | 2022-04-12 | 深圳素士科技股份有限公司 | Calibration method and calibration device for induction interval, induction shaver and medium |
| CN112571461A (en) * | 2020-12-07 | 2021-03-30 | 深圳素士科技股份有限公司 | Calibration method and calibration device for induction interval, induction shaver and medium |
| CN112652156A (en) * | 2021-01-11 | 2021-04-13 | 广东积微科技有限公司 | Tongue-controlled remote controller, household appliance control method and device and storage medium |
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