CN103135810A - Pressure sensitivity adjustment method of touch screen and pressure sensitivity adjustment system of touch screen - Google Patents
Pressure sensitivity adjustment method of touch screen and pressure sensitivity adjustment system of touch screen Download PDFInfo
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- CN103135810A CN103135810A CN2011103771765A CN201110377176A CN103135810A CN 103135810 A CN103135810 A CN 103135810A CN 2011103771765 A CN2011103771765 A CN 2011103771765A CN 201110377176 A CN201110377176 A CN 201110377176A CN 103135810 A CN103135810 A CN 103135810A
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Abstract
The invention provides a pressure sensitivity adjustment method of a touch screen. The steps of the method includes that S11, when a user is detected to execute a touching operation on the touch screen, a touch screen module is switched on; S12, touch data are timely acquired, and the touch data comprise a touch pressure and touch coordinates; S13, an arithmetic mean value of the recent N times of touch pressures is calculated, the value is compared with a preset pressure value of the touch screen module, and the preset pressure sensitivity of the touch screen is enabled to be improved or lessened by at least one level if the absolute value of the difference of the arithmetic mean value of the touch pressure and the preset pressure value is larger than or equal to a preset threshold value. The invention further provides a pressure sensitivity adjustment system of the touch screen. According to the adjustment method and the system, working parameters of the pressure sensitivity of the touch screen can be adjusted according to the touch habit of the user, and therefore the pressure tactility of the touch screen is enabled to reach the best effect, the adjustable effect of the pressure tactility of the touch screen is achieved, and the user experience is improved.
Description
Technical field
The invention belongs to communication field, relate in particular to a kind of pressure sensitivity control method and system of touch-screen.
Background technology
At present, the whole mobile terminal industry market of China is to third generation communication (3G) technology migration, adopt the mobile terminal of 3G technology not only to promote to some extent on transmission voice and data speed, more to realize that perfect user experiences, and specifically provides much information services such as comprising web page browsing, teleconference, ecommerce.From the multi-point touch panel of Iphone, the standard that at first the 3G smart mobile phone is judged is: whether have the touching display screen of a super large, it is touch that CHINAUNICOM, China Telecom have announced that all the 3G smart mobile phone that customizes is necessary for large-size screen monitors.And CHINAUNICOM's clear and definite Mobile phone screen in its new definition 3G smart mobile phone is necessary for the touch screen more than 3.5 inches, and China Telecom also claims, it is touch screen more than 4.0 inches that the main flow sky wing 3G smart mobile phone of its customization requires Mobile phone screen.The generation of this trend is that the dirigibility of its operation is high, can bring convenient controlling to the user because touch-screen is compared to traditional button; On the other hand, because touch-screen has become and will continue to become one of of paramount importance mode of man-machine interaction on mobile terminal, so the function of necessary continuous excavation touch-screen is brought better interactive experience to the user.
Wherein, the pressure sensitivity of touch-screen is the running parameter whether the reaction touch-screen is contacted by the contact, and mobile terminal has just been fixed the pressure sensitivity of touch-screen when dispatching from the factory, and the user can't revise; For example with a mobile phone, no matter the user is men and women, old and young, and the pressure sensitivity of touch-screen is all the same, thereby greatly reduces user's experience effect.
Summary of the invention
The pressure sensitivity control method that the purpose of this invention is to provide a kind of touch-screen solves the technical matters that the pressure sensitivity of touch-screen in prior art can not be regulated, and realizes the effect that the pressure sensitivity of touch-screen can be regulated, and improves user's experience effect.
The objective of the invention is to be achieved through the following technical solutions:
A kind of pressure sensitivity control method of touch-screen, the method comprises the following steps:
S11, when the user being detected carry out touch operation on touch-screen, open touch screen module;
S12, Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate;
The arithmetic mean of S13, nearest N the touch pressure of calculating, force value default in this value and touch screen module is compared, if the absolute value of the arithmetic mean of touch pressure and the difference of default force value is more than or equal to predetermined threshold value, the pressure sensitivity with default touch-screen improves or reduces at least one grade.
The present invention also provides a kind of pressure sensitivity regulating system of touch-screen, and this system comprises:
Detecting unit, the touch operation of carrying out on touch-screen for detection of the user;
Open the unit, be used for when detecting unit detects the user carry out touch operation on touch-screen the unlatching touch screen module;
Collecting unit is used for the Real-time Collection touch data, and described touch data comprises touch pressure, touch coordinate;
Analytic unit for the arithmetic mean that calculates nearest N touch pressure, compares force value default in this value and touch screen module;
Processing unit, the absolute value of the arithmetic mean that is used for drawing described touch pressure when described analytic unit and the difference of default force value be during more than or equal to predetermined threshold value, with the pressure sensitivity raising of default touch-screen or reduce at least one grade.
In the pressure sensitivity control method and system of touch-screen provided by the invention, when the user being detected carry out touch operation on touch-screen, can the Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate etc., calculate the touch pressure mean value of nearest N collection, this touch pressure mean value and the force value of presetting are compared, according to comparative result, the pressure sensitivity of touch-screen is regulated, the pressure sensitivity running parameter is adjusted into the value of optimization.Therefore, the present invention can follow the tracks of user's touch custom, regulate the pressure sensitivity running parameter of touch-screen, thereby make the pressure sense of touch of touch-screen reach optimum efficiency, solved the technical matters that in the prior art, the pressure sensitivity of touch-screen can not be regulated, realize the effect that the pressure sensitivity of touch-screen can be regulated, improve user's experience effect.
Description of drawings
Fig. 1 is the pressure sensitivity control method schematic flow sheet of touch-screen provided by the invention.
Fig. 2 is the pressure sensitivity regulating system structural representation of touch-screen provided by the invention.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Please refer to shown in Figure 1, a kind of pressure sensitivity control method of touch-screen, the method comprises the following steps:
S11, when the user being detected carry out touch operation on touch-screen, open touch screen module;
S12, Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate;
The arithmetic mean of S13, nearest N the touch pressure of calculating, force value default in this value and touch screen module is compared, if the absolute value of the arithmetic mean of touch pressure and the difference of default force value is more than or equal to predetermined threshold value, the pressure sensitivity with default touch-screen improves or reduces at least one grade.
In the pressure sensitivity control method of touch-screen provided by the invention, when the user being detected and touch on touch-screen, can the Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate etc., calculate the touch pressure mean value of nearest N collection, this touch pressure mean value and the force value of presetting are compared, according to comparative result, the pressure sensitivity of touch-screen is regulated, the pressure sensitivity running parameter is adjusted into the value of optimization.Therefore, the present invention can follow the tracks of user's touch custom, regulate the pressure sensitivity running parameter of touch-screen, thereby make the pressure sense of touch of touch-screen reach optimum efficiency, solved the technical matters that in the prior art, the pressure sensitivity of touch-screen can not be regulated, realize the effect that the pressure sensitivity of touch-screen can be regulated, improve user's experience effect.
As a kind of specific embodiment, described step S11 specifically comprises:
Enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, begin to open touch screen module when the operation interface of touch-screen is carried out touch operation the user being detected.Particularly, the user can arrange at mobile terminal and add " the pressure sensitivity Automatic Optimal of touch-screen " option in the interface, and the user can determine whether to open according to the needs of oneself the pressure sensitivity automatic majorization function of touch-screen.If the user determines to arrange the pressure sensitivity of touch-screen, need to open " the pressure sensitivity Automatic Optimal of touch-screen " option, then begin to touch at the operation interface of touch-screen, this moment, touch-screen can detect user's touch action, and then opened touch screen module.
As another kind of specific embodiment, described step S11 specifically comprises:
Enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option in advance, add different application programs in this option, and be different application setting pressure sensitivity parameters, when the Application Program Interface that the user detected and enter selection is carried out touch operation, open touch screen module.Particularly, the user can arrange in the interface at mobile terminal and add " the pressure sensitivity application program Automatic Optimal of touch-screen " option, is the operation interface setting of the different application pressure sensitivity of the touch-screen at suitable this interface; For example game " the fruit person of bearing " interface and dial (of a telephone) interface, the user generally has relatively fierce touch action in playing " the fruit person of bearing ", sensitivity is too high simultaneously may cause maloperation, affect game experiencing, think that different application programs arranges different pressure sensitivity running parameters, be very important.After the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option, can add different application programs in this option, and be after different application program preset pressure sensitivity parameter, the Application Program Interface that enters selection carries out touch operation, this moment, touch-screen can detect user's touch action, and then opened touch screen module.
As another specific embodiment, described step S11 specifically comprises:
enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, and select " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, add different application programs in this option, and be different application program preset pressure sensitivity parameters, when the Application Program Interface that the user detected and enter selection is carried out touch operation, according to being the default pressure sensitivity parameter of selected application program in " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, open touch screen module.Particularly, the user can arrange at mobile terminal and add " the pressure sensitivity Automatic Optimal of touch-screen " option in the interface, then add " the pressure sensitivity application program Automatic Optimal of touch-screen " menu under " the pressure sensitivity Automatic Optimal of touch-screen " option, the user can determine whether to open the pressure sensitivity automatic majorization function of touch-screen and the pressure sensitivity application program automatic majorization function of touch-screen according to the needs of oneself.if the user determines to be the operation interface setting of the different application pressure sensitivity of the touch-screen at suitable this interface, need to open simultaneously " the pressure sensitivity Automatic Optimal of touch-screen " option and " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, then can add different application programs in " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, and be after different application program preset pressure sensitivity parameter, the Application Program Interface that enters selection carries out touch operation, this moment, touch-screen can detect user's touch action, and then unlatching touch screen module.When the user with application program for example " the fruit person of bearing " game delete from " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, this application program can also be enjoyed " the pressure sensitivity Automatic Optimal of touch-screen " function, namely has the pressure sensitivity running parameter identical with other operation interfaces of touch-screen.
As concrete embodiment, describedly be specially for different application program preset pressure sensitivity parameters:
Directly read touch-screen and drive pressure sensitivity numerical value default in chip register, as the default pressure sensitivity parameter of different application, wherein, in the driving chip of touch-screen, all can be the pre-defined parameter value of the pressure sensitivity of touch-screen; Perhaps
Pressure sensitivity numerical value after described operation interface at touch-screen is touched adjusting, as the default pressure sensitivity parameter of different application, namely the default pressure sensitivity parameter of different application can be obtained by the running parameter after " the pressure sensitivity Automatic Optimal of touch-screen " function optimization.
As concrete embodiment, in described step S12, about principle and the method for the described touch pressure data of Real-time Collection, describe in detail below with reference to the touch-screen of two types of resistance-type and condenser types.
(1) resistive touch screen:
Electric resistance touch screen is to adopt resistance simulation amount technology, it is that one deck glass is as basic unit, the above scribbles layer of transparent oxidized metal (for example ITO tin indium oxide) conductive layer, then is stamped one deck glass or the smooth plastic layer of outside surface cure process, and its inside surface also scribbles one deck ITO conductive layer.Have many tiny transparent isolating points that two conductive layers are separated insulation between them, when having pen or finger to press, two conductive layers just are in contact with one another.
The two ends of conductive layer all scribble an elargol, are called the pair of electrodes of this workplace.Wherein, in two conductive layers in up and down, one is horizontal direction, and one is vertical direction, is used for respectively measuring the coordinate position of X and Y, and the electrode on surface level is called X+ electrode and X-electrode, is called Y+ electrode and Y-electrode at the electrode of perpendicular.During work, two electrodes provide reference voltage or measure as the position of measuring junction butt contact according to measuring needs.When measuring the X coordinate of contact point, the X+ electrode on conductive layer and X-electrode add respectively reference voltage and ground; The Y electrode is making alive not, can form so uniform voltage between the X electrode and distribute, and as measurement point, the magnitude of voltage that obtains just can be judged the X coordinate of contact point accordingly through the A/D conversion with the Y+ electrode.The measurement of Y coordinate is also similar, only need make into Y electrode making alive and the X electrode not making alive get final product.
The principle of measuring touch pressure is relevant with the self-characteristic of ITO material.The Conductivity formula of ITO conducting film is ρ=ρ 0(1+3 λ 0/d), wherein d is the thickness of conducting film, can be drawn by this Conductivity formula: the thickness of ITO conductivity and ITO conducting film is inversely proportional to.The pressure that touches is larger, and the ITO conducting film of contact point is just thinner, corresponding conductivity just large, resistance is less.So in resistive touch screen, the measurement essence of touch pressure is to measure the resistance value of contact ITO conducting film.
(2) capacitive touch screen:
Below will illustrate as an example of projected capacitive touch screen example, the projecting type capacitor scheme generally is divided into two kinds of self-capacitance and mutual capacitance according to its scan mode.So-calledly typically refer to from holding the electric capacity that scan electrode and ground consist of, the useful ITO of glass surface make laterally with scan electrode longitudinally, just consist of the two poles of the earth of an electric capacity between these electrodes and ground.Will electric capacity in parallel when touching with hand or felt pen in circuit, thereby the overall electric capacity on this sweep trace is changed to some extent.In scanning, control chip (IC) scans the vertical and horizontal electrode successively, and determines the coordinate position of touch point according to the capacitance variations before and after scanning.The advantage of self-tolerant scanning is that sweep velocity is fast, has scanned a scan period only need to scan the scan electrode quantity that X+Y(X and Y are respectively X-axis and Y-axis) root.But this scan mode is only to complete the recognition function that need to singly refer to touch with the gesture convergent-divergent.
So-called hold mutually, just refer to the electric capacity that the infall at the horizontal and vertical ITO electrode of glass surface forms.The scan mode of holding mutually is exactly the capacitance variations of each infall of scanning, judges the position of touch point.Will have influence on the coupling of adjacent electrode when touching, thereby change the electric capacity of infall, the scan mode of holding mutually can detect the capacitance of each point of crossing, and the capacitance variations after touching.Therefore, compare longer the sweep time that mutual appearance needs with the scan mode of certainly holding, and specifically need to scan and detect X * Y data.
In concrete measured pressure value, what measure in fact is the area size that finger contact with touch-screen, because when finger presses, dynamics is larger, and surface of contact is also larger accordingly, so pressure survey is converted into the problem of contact area measurement.Hold mutually scan mode, scanned in fact the capacitance of each point of crossing on the touch-screen, when finger touch, the capacitance of all point of crossing of contact area all changes.By capacitance vicissitudinous point of crossing being detected, just can draw the size of contact area, can know the pressure size of touch thereupon.
Drive in chip at capacitance touch screen, size and pressure sensitivity numerical value that special register feeds back set touch pressure can be set.
As concrete embodiment, described step S13 specifically comprises: if the arithmetic mean of described touch pressure greater than default force value, the pressure sensitivity with default touch-screen improves at least one grade; If the arithmetic mean of described touch pressure is less than default force value, the pressure sensitivity with default touch-screen reduces at least one grade, then new pressure sensitivity running parameter is write in touch screen module.Wherein, in described touch screen module, take the pressure sensitivity of default touch-screen as benchmark, according to certain intervals pressure sensitivity value, be set with forward and backward a plurality of pressure sensitivity running parameter grades.Particularly, poor according to the arithmetic mean of described touch pressure and default force value calculated the corresponding multiple relation of this difference and spaced pressure Sensitirity va1ue, improves or reduce corresponding grade according to this multiple relation.
As better embodiment, the pressure sensitivity control method of described touch-screen further comprises: the touch coordinate data that collects is reported, and the arithmetic mean of the pressure sensitivity of the touch-screen after regulating and touch pressure writes the power down nonvolatile storage.Particularly, described touch coordinate data reports, and is to observe in different operation interfaces for the ease of the user, and which zone is its touch action mainly concentrate on, for further research is done in the design of touch-screen; The pressure sensitivity of the touch-screen after described will the adjusting and the arithmetic mean of touch pressure write the power down nonvolatile storage, when keeping the related work parameter, also provide convenience for other application programs read relevant running parameter.
Further, when detecting that the user is selecting " the pressure sensitivity Automatic Optimal of touch-screen " or/and after " the pressure sensitivity application program Automatic Optimal of touch-screen " option uses a period of time, also can select to close corresponding automatic majorization function, current optimization pressure sensitivity running parameter is out used as follow-up default value; Simultaneously, the pressure sensitivity value of the touch-screen of acquiescence in the time of also can recovering to dispatch from the factory is used as follow-up default value.Therefore, the pressure sensitivity control method of touch-screen provided by the invention is very convenient, has very strong practicality.
Please refer to shown in Figure 2ly, the present invention also provides a kind of pressure sensitivity regulating system of touch-screen, and this system comprises:
Detecting unit 101, the touch operation of carrying out on touch-screen for detection of the user;
Open unit 102, be used for when detecting unit detects the user carry out touch operation on touch-screen the unlatching touch screen module;
Collecting unit 103 is used for the Real-time Collection touch data, and described touch data comprises touch pressure, touch coordinate;
In the pressure sensitivity regulating system of touch-screen provided by the invention, when the user being detected and touch on touch-screen, can the Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate etc., calculate the touch pressure mean value of nearest N collection, this touch pressure mean value and the force value of presetting are compared, according to comparative result, the pressure sensitivity of touch-screen is regulated, the pressure sensitivity running parameter is adjusted into the value of optimization.Therefore, the present invention can follow the tracks of user's touch custom, regulate the pressure sensitivity running parameter of touch-screen, thereby make the pressure sense of touch of touch-screen reach optimum efficiency, solved the technical matters that in the prior art, the pressure sensitivity of touch-screen can not be regulated, realize the effect that the pressure sensitivity of touch-screen can be regulated, improve user's experience effect.
As a kind of specific embodiment, described detecting unit 101 specifically comprises:
First detection module arranges the interface for detection of entering terminal as the user, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, the detection user begins the touch operation in the operation interface execution of touch-screen.Particularly, the user can arrange at mobile terminal and add " the pressure sensitivity Automatic Optimal of touch-screen " option in the interface, and the user can determine whether to open according to the needs of oneself the pressure sensitivity automatic majorization function of touch-screen.If the user determines to arrange the pressure sensitivity of touch-screen, need to open " the pressure sensitivity Automatic Optimal of touch-screen " option, then begin to touch at the operation interface of touch-screen, this moment, touch-screen can detect user's touch action, and then opened touch screen module.
As another kind of specific embodiment, described detecting unit 101 specifically comprises:
The second detection module, for detection of entering terminal as the user, the interface is set, if the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option in advance, add different application programs in this option, and be different application program preset pressure sensitivity parameters, the detection user begins the touch operation in the Application Program Interface execution of selecting.Particularly, the user can arrange in the interface at mobile terminal and add " the pressure sensitivity application program Automatic Optimal of touch-screen " option, is the operation interface setting of the different application pressure sensitivity of the touch-screen at suitable this interface; For example game " the fruit person of bearing " interface and dial (of a telephone) interface, the user generally has relatively fierce touch action in playing " the fruit person of bearing ", sensitivity is too high simultaneously may cause maloperation, affect game experiencing, think that different application programs arranges different pressure sensitivity running parameters, be very important.After the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option, can add different application programs in this option, and be after different application program preset pressure sensitivity parameter, the Application Program Interface that enters selection carries out touch operation, this moment, touch-screen can detect user's touch action, and then opened touch screen module.
As another specific embodiment, described detecting unit 101 specifically comprises:
The 3rd detection module, for detection of entering terminal as the user, the interface is set, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, and select " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, add different application programs in this option, and be different application program preset pressure sensitivity parameters, the detection user begins the touch operation in the Application Program Interface execution of selecting.Particularly, the user can arrange at mobile terminal and add " the pressure sensitivity Automatic Optimal of touch-screen " option in the interface, then add " the pressure sensitivity application program Automatic Optimal of touch-screen " menu under " the pressure sensitivity Automatic Optimal of touch-screen " option, the user can determine whether to open the pressure sensitivity automatic majorization function of touch-screen and the pressure sensitivity application program automatic majorization function of touch-screen according to the needs of oneself.if the user determines to be the operation interface setting of the different application pressure sensitivity of the touch-screen at suitable this interface, need to open simultaneously " the pressure sensitivity Automatic Optimal of touch-screen " option and " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, then can add different application programs in " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, and be after different application program preset pressure sensitivity parameter, the Application Program Interface that enters selection carries out touch operation, this moment, touch-screen can detect user's touch action, and then unlatching touch screen module.When the user with application program for example " the fruit person of bearing " game delete from " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, this application program can also be enjoyed " the pressure sensitivity Automatic Optimal of touch-screen " function, namely has the pressure sensitivity running parameter identical with other operation interfaces of touch-screen.
As concrete embodiment, in described collecting unit 103, about principle and the method for the described touch pressure data of Real-time Collection, describe in detail below with reference to the touch-screen of two types of resistance-type and condenser types.
(1) resistive touch screen:
Electric resistance touch screen is to adopt resistance simulation amount technology, it is that one deck glass is as basic unit, the above scribbles layer of transparent oxidized metal (for example ITO tin indium oxide) conductive layer, then is stamped one deck glass or the smooth plastic layer of outside surface cure process, and its inside surface also scribbles one deck ITO conductive layer.Have many tiny transparent isolating points that two conductive layers are separated insulation between them, when having pen or finger to press, two conductive layers just are in contact with one another.
The two ends of conductive layer all scribble an elargol, are called the pair of electrodes of this workplace.Wherein, in two conductive layers in up and down, one is horizontal direction, and one is vertical direction, is used for respectively measuring the coordinate position of X and Y, and the electrode on surface level is called X+ electrode and X-electrode, is called Y+ electrode and Y-electrode at the electrode of perpendicular.During work, two electrodes provide reference voltage or measure as the position of measuring junction butt contact according to measuring needs.When measuring the X coordinate of contact point, the X+ electrode on conductive layer and X-electrode add respectively reference voltage and ground; The Y electrode is making alive not, can form so uniform voltage between the X electrode and distribute, and as measurement point, the magnitude of voltage that obtains just can be judged the X coordinate of contact point accordingly through the A/D conversion with the Y+ electrode.The measurement of Y coordinate is also similar, only need make into Y electrode making alive and the X electrode not making alive get final product.
The principle of measuring touch pressure is relevant with the self-characteristic of ITO material.The Conductivity formula of ITO conducting film is ρ=ρ 0(1+3 λ 0/d), wherein d is the thickness of conducting film, can be drawn by this Conductivity formula: the thickness of ITO conductivity and ITO conducting film is inversely proportional to.The pressure that touches is larger, and the ITO conducting film of contact point is just thinner, corresponding conductivity just large, resistance is less.So in resistive touch screen, the measurement essence of touch pressure is to measure the resistance value of contact ITO conducting film.
(2) capacitive touch screen:
Below will illustrate as an example of projected capacitive touch screen example, the projecting type capacitor scheme generally is divided into two kinds of self-capacitance and mutual capacitance according to its scan mode.So-calledly typically refer to from holding the electric capacity that scan electrode and ground consist of, the useful ITO of glass surface make laterally with scan electrode longitudinally, just consist of the two poles of the earth of an electric capacity between these electrodes and ground.Will electric capacity in parallel when touching with hand or felt pen in circuit, thereby the overall electric capacity on this sweep trace is changed to some extent.In scanning, control chip (IC) scans the vertical and horizontal electrode successively, and determines the coordinate position of touch point according to the capacitance variations before and after scanning.The advantage of self-tolerant scanning is that sweep velocity is fast, has scanned a scan period only need to scan the scan electrode quantity that X+Y(X and Y are respectively X-axis and Y-axis) root.But this scan mode is only to complete the recognition function that need to singly refer to touch with the gesture convergent-divergent.
So-called hold mutually, just refer to the electric capacity that the infall at the horizontal and vertical ITO electrode of glass surface forms.The scan mode of holding mutually is exactly the capacitance variations of each infall of scanning, judges the position of touch point.Will have influence on the coupling of adjacent electrode when touching, thereby change the electric capacity of infall, the scan mode of holding mutually can detect the capacitance of each point of crossing, and the capacitance variations after touching.Therefore, compare longer the sweep time that mutual appearance needs with the scan mode of certainly holding, and specifically need to scan and detect X * Y data.
In concrete measured pressure value, what measure in fact is the area size that finger contact with touch-screen, because when finger presses, dynamics is larger, and surface of contact is also larger accordingly, so pressure survey is converted into the problem of contact area measurement.Hold mutually scan mode, scanned in fact the capacitance of each point of crossing on the touch-screen, when finger touch, the capacitance of all point of crossing of contact area all changes.By capacitance vicissitudinous point of crossing being detected, just can draw the size of contact area, can know the pressure size of touch thereupon.
Drive in chip at capacitance touch screen, size and pressure sensitivity numerical value that special register feeds back set touch pressure can be set.
As concrete embodiment, described processing unit 105 specifically comprises:
The first processing module, the arithmetic mean that is used for working as described touch pressure is greater than default force value, and the pressure sensitivity with default touch-screen improves at least one grade;
The second processing module, the arithmetic mean that is used for working as described touch pressure is less than default force value, and the pressure sensitivity with default touch-screen reduces at least one grade;
Then new pressure sensitivity running parameter is write in touch screen module.Wherein, in described touch screen module, take the pressure sensitivity of default touch-screen as benchmark, according to certain intervals pressure sensitivity value, be set with forward and backward a plurality of pressure sensitivity running parameter grades.Particularly, poor according to the arithmetic mean of described touch pressure and default force value calculated the corresponding multiple relation of this difference and spaced pressure Sensitirity va1ue, improves or reduce corresponding grade according to this multiple relation.
As better embodiment, the pressure sensitivity regulating system of described touch-screen further comprises:
Reporting module is used for the touch coordinate data that collects is reported; And
Writing module, the pressure sensitivity of the touch-screen after being used for regulating and the arithmetic mean of touch pressure write the power down nonvolatile storage.Particularly, described touch coordinate data reports, and is to observe in different operation interfaces for the ease of the user, and which zone is its touch action mainly concentrate on, for further research is done in the design of touch-screen; The pressure sensitivity of the touch-screen after described will the adjusting and the arithmetic mean of touch pressure write the power down nonvolatile storage, when keeping the related work parameter, also provide convenience for other application programs read relevant running parameter.
Further, when detecting that the user is selecting " the pressure sensitivity Automatic Optimal of touch-screen " or/and after " the pressure sensitivity application program Automatic Optimal of touch-screen " option uses a period of time, also can select to close corresponding automatic majorization function, current optimization pressure sensitivity running parameter is out used as follow-up default value; Simultaneously, the pressure sensitivity value of the touch-screen of acquiescence in the time of also can recovering to dispatch from the factory is used as follow-up default value.Therefore, the pressure sensitivity regulating system of touch-screen provided by the invention is very convenient, has very strong practicality.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. the pressure sensitivity control method of a touch-screen, is characterized in that, the method comprises the following steps:
S11, when the user being detected carry out touch operation on touch-screen, open touch screen module;
S12, Real-time Collection touch data, described touch data comprises touch pressure, touch coordinate;
The arithmetic mean of S13, nearest N the touch pressure of calculating, force value default in this value and touch screen module is compared, if the absolute value of the arithmetic mean of touch pressure and the difference of default force value is more than or equal to predetermined threshold value, the pressure sensitivity with default touch-screen improves or reduces at least one grade.
2. the pressure sensitivity control method of touch-screen according to claim 1, is characterized in that, described step S11 specifically comprises:
Enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, begin to open touch screen module when the operation interface of touch-screen is carried out touch operation the user being detected.
3. the pressure sensitivity control method of touch-screen according to claim 1, is characterized in that, described step S11 specifically comprises:
Enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option in advance, add different application programs in this option, and be different application program preset pressure sensitivity parameters, when the Application Program Interface that the user detected and enter selection is carried out touch operation, open touch screen module.
4. the pressure sensitivity control method of touch-screen according to claim 1, is characterized in that, described step S11 specifically comprises:
enter terminal the interface is set when the user being detected, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, and select " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, add different application programs in this option, and be different application program preset pressure sensitivity parameters, when the Application Program Interface that the user detected and enter selection is carried out touch operation, according to being the default pressure sensitivity parameter of selected application program in " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, open touch screen module.
5. the pressure sensitivity control method of according to claim 3 or 4 described touch-screens, is characterized in that, describedly is specially for different application program preset pressure sensitivity parameters:
Directly read touch-screen and drive pressure sensitivity numerical value default in chip register, as the default pressure sensitivity parameter of different application; Perhaps
Pressure sensitivity numerical value after described operation interface at touch-screen is touched adjusting is as the default pressure sensitivity parameter of different application.
6. the pressure sensitivity control method of touch-screen according to claim 1, it is characterized in that, described step S13 specifically comprises: if the arithmetic mean of described touch pressure greater than default force value, the pressure sensitivity with default touch-screen improves at least one grade; If the arithmetic mean of described touch pressure is less than default force value, the pressure sensitivity with default touch-screen reduces at least one grade.
7. the pressure sensitivity control method of touch-screen according to claim 1, it is characterized in that, further comprise after step S13: the touch coordinate data that collects is reported, and the arithmetic mean of the pressure sensitivity of the touch-screen after regulating and touch pressure writes the power down nonvolatile storage.
8. the pressure sensitivity regulating system of a touch-screen, is characterized in that, this system comprises:
Detecting unit, the touch operation of carrying out on touch-screen for detection of the user;
Open the unit, be used for when detecting unit detects the user carry out touch operation on touch-screen the unlatching touch screen module;
Collecting unit is used for the Real-time Collection touch data, and described touch data comprises touch pressure, touch coordinate;
Analytic unit for the arithmetic mean that calculates nearest N touch pressure, compares force value default in this value and touch screen module;
Processing unit, the absolute value of the arithmetic mean that is used for drawing described touch pressure when described analytic unit and the difference of default force value be during more than or equal to predetermined threshold value, with the pressure sensitivity raising of default touch-screen or reduce at least one grade.
9. the pressure sensitivity regulating system of touch-screen according to claim 8, is characterized in that, described detecting unit specifically comprises:
First detection module arranges the interface for detection of entering terminal as the user, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, the detection user begins the touch operation in the operation interface execution of touch-screen.
10. the pressure sensitivity regulating system of touch-screen according to claim 8, is characterized in that, described detecting unit specifically comprises:
The second detection module, for detection of entering terminal as the user, the interface is set, if the user selects " the pressure sensitivity application program Automatic Optimal of touch-screen " option in advance, add different application programs in this option, and be different application program preset pressure sensitivity parameters, the detection user begins the touch operation in the Application Program Interface execution of selecting.
11. the pressure sensitivity regulating system of touch-screen according to claim 8 is characterized in that, described detecting unit specifically comprises:
The 3rd detection module, for detection of entering terminal as the user, the interface is set, if the user selects " the pressure sensitivity Automatic Optimal of touch-screen " option in advance, and select " the pressure sensitivity application program Automatic Optimal of touch-screen " menu, add different application programs in this option, and be different application program preset pressure sensitivity parameters, the detection user begins the touch operation in the Application Program Interface execution of selecting.
12. the pressure sensitivity regulating system of touch-screen according to claim 8 is characterized in that, described processing unit specifically comprises:
The first processing module, the arithmetic mean that is used for drawing described touch pressure when described analytic unit be during greater than default force value, and the pressure sensitivity of the touch-screen preset is improved at least one grade;
The second processing module, the arithmetic mean that is used for drawing described touch pressure when described analytic unit be during less than default force value, and the pressure sensitivity of the touch-screen preset is reduced at least one grade.
13. the pressure sensitivity regulating system of touch-screen according to claim 8 is characterized in that, described system further comprises:
Reporting module is used for the touch coordinate data that collects is reported;
Writing module, the pressure sensitivity of the touch-screen after being used for regulating and the arithmetic mean of touch pressure write the power down nonvolatile storage.
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