CN103135810B - The pressure-sensitivity control method of a kind of touch-screen and system - Google Patents
The pressure-sensitivity control method of a kind of touch-screen and system Download PDFInfo
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Abstract
The present invention provides the pressure-sensitivity control method of a kind of touch-screen, and the method comprises the following steps: S11, when detecting that user performs touch operation on the touchscreen, opens touch screen module；S12, Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；S13, calculate the arithmetic mean of instantaneous value of nearest n times touch pressure, the force value that this value is default with touch screen module is compared, if the arithmetic mean of instantaneous value of touch pressure is more than or equal to predetermined threshold value with the absolute value of the difference of the force value preset, then the pressure-sensitivity of default touch-screen is improved or reduce at least one grade.The present invention also provides for the pressure-sensitivity regulation system of a kind of touch-screen.The control method of present invention offer and system, the touch custom of user can be followed the tracks of, regulate the pressure-sensitivity running parameter of touch-screen, so that the pressure sense of touch of touch-screen reaches optimum efficiency, realize the effect that the pressure-sensitivity of touch-screen can regulate, improve Consumer's Experience effect.
Description
Technical field
The invention belongs to communication field, particularly relate to pressure-sensitivity control method and the system of a kind of touch-screen.
Background technology
At present, the whole mobile terminal industry market of China is to third generation communication (3G) technology migration, the mobile terminal using 3G technology has not only promoted in transmission voice and data speed, being more to realize perfect Consumer's Experience, concrete offer includes the much information services such as web page browsing, videoconference, ecommerce.From the beginning of the multi-point touch panel of Iphone, the standard that first 3G smart mobile phone judges is: whether have the touching display screen of a super large, and it is touch that CHINAUNICOM, China Telecom have announced that the 3G smart mobile phone of customization is necessary for large-size screen monitors the most.And CHINAUNICOM's the clearest and the most definite Mobile phone screen in its new definition 3G smart mobile phone is necessary for the touch screen of more than 3.5 inches, China Telecom is also referred to as, the touch screen that the main flow sky wing 3G smart mobile phone of its customization requires Mobile phone screen to be more than 4.0 inches.The generation of this trend is because touch-screen and is compared to traditional button, and the flexibility of its operation is high, can bring convenient manipulation to user；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, more preferable interactive experience is brought to user.
Wherein, the pressure-sensitivity of touch-screen be reaction touch-screen whether by the running parameter of contact, mobile terminal just secures the pressure-sensitivity of touch-screen when dispatching from the factory, and user cannot revise；The most same Mobile phone, no matter user is men and women, old and young, and the pressure-sensitivity of touch-screen is just as, thus greatly reduces the experience effect of user.
Summary of the invention
It is an object of the invention to provide the pressure-sensitivity control method of a kind of touch-screen, solve the technical problem that in prior art, the pressure-sensitivity of touch-screen can not regulate, it is achieved the effect that the pressure-sensitivity of touch-screen can regulate, improve the experience effect of user.
It is an object of the invention 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 detecting that user performs touch operation on the touchscreen, open touch screen module；
S12, Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
S13, calculate the arithmetic mean of instantaneous value of nearest n times touch pressure, the force value that this value is default with touch screen module is compared, if the arithmetic mean of instantaneous value of touch pressure is more than or equal to predetermined threshold value with the absolute value of the difference of the force value preset, then the pressure-sensitivity of default touch-screen is improved or reduce at least one grade.
The present invention also provides for the pressure-sensitivity regulation system of a kind of touch-screen, and this system includes:
Detector unit, for detecting the touch operation that user performs on the touchscreen；
Open unit, for when detector unit detects that user performs touch operation on the touchscreen, open touch screen module；
Collecting unit, for Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
Analytic unit, for calculating the arithmetic mean of instantaneous value of nearest n times touch pressure, compares the force value that this value is default with touch screen module；
Processing unit, when the absolute value of arithmetic mean of instantaneous value with the difference of the force value preset for drawing described touch pressure when described analytic unit is more than or equal to predetermined threshold value, improves the pressure-sensitivity of default touch-screen or reduces at least one grade.
In the pressure-sensitivity control method of the touch-screen that the present invention provides and system, when detecting that user performs touch operation on the touchscreen, can be with Real-time Collection touch data, described touch data includes touch pressure, touch coordinate etc., calculate the touch pressure mean value that nearest n times gather, this touch pressure mean value is compared with the force value preset, according to comparative result, the pressure-sensitivity of touch-screen is adjusted, pressure-sensitivity running parameter is adjusted to the value of optimization.Therefore, the present invention can follow the tracks of the touch custom of user, regulate the pressure-sensitivity running parameter of touch-screen, so that the pressure sense of touch of touch-screen reaches optimum efficiency, solve the technical problem that in prior art, the pressure-sensitivity of touch-screen can not regulate, realize the effect that the pressure-sensitivity of touch-screen can regulate, improve the experience effect of user.
Accompanying drawing explanation
Fig. 1 is the pressure-sensitivity control method schematic flow sheet of the touch-screen that the present invention provides.
Fig. 2 is the pressure-sensitivity regulation system architecture schematic diagram of the touch-screen that the present invention provides.
Detailed description of the invention
In order to make technical problem 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.
Refer to shown in Fig. 1, the pressure-sensitivity control method of a kind of touch-screen, the method comprises the following steps:
S11, when detecting that user performs touch operation on the touchscreen, open touch screen module；
S12, Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
S13, calculate the arithmetic mean of instantaneous value of nearest n times touch pressure, the force value that this value is default with touch screen module is compared, if the arithmetic mean of instantaneous value of touch pressure is more than or equal to predetermined threshold value with the absolute value of the difference of the force value preset, then the pressure-sensitivity of default touch-screen is improved or reduce at least one grade.
In the pressure-sensitivity control method of the touch-screen that the present invention provides, when detecting that user touches on the touchscreen, can be with Real-time Collection touch data, described touch data includes touch pressure, touch coordinate etc., calculate the touch pressure mean value that nearest n times gather, this touch pressure mean value is compared with the force value preset, according to comparative result, the pressure-sensitivity of touch-screen is adjusted, pressure-sensitivity running parameter is adjusted to the value of optimization.Therefore, the present invention can follow the tracks of the touch custom of user, regulate the pressure-sensitivity running parameter of touch-screen, so that the pressure sense of touch of touch-screen reaches optimum efficiency, solve the technical problem that in prior art, the pressure-sensitivity of touch-screen can not regulate, realize the effect that the pressure-sensitivity of touch-screen can regulate, improve the experience effect of user.
As a kind of specific embodiment, described step S11 specifically includes:
When detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, then, when detecting that user starts to perform touch operation at the operation interface of touch-screen, open touch screen module.Specifically, user can add " the pressure-sensitivity Automatic Optimal of touch-screen " option in mobile terminal arranges interface, and user can be according to the pressure-sensitivity automatic majorization function needing to decide whether unlatching touch-screen of oneself.If the user determine that need to arrange the pressure-sensitivity of touch-screen, then need to open " the pressure-sensitivity Automatic Optimal of touch-screen " option, then starting to touch at the operation interface of touch-screen, now touch-screen can detect the touch action of user, and then opens touch screen module.
As another kind of specific embodiment, described step S11 specifically includes:
When detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs is added in this option, and be different application setting pressure-sensitivity parameters, then when the Application Program Interface execution touch operation that user enters selection being detected, open touch screen module.Specifically, user can add " the pressure-sensitivity application program Automatic Optimal of touch-screen " option in mobile terminal arranges interface, and the interface that operates for different application arranges the pressure-sensitivity of the touch-screen being best suitable for this interface；Such as game " the fruit person of bearing " interface and dial interface, user typically has relatively fierce touch action in playing " the fruit person of bearing ", sensitivity simultaneously is too high may result in maloperation, affect game experiencing, so arranging different pressure-sensitivity running parameters for different application programs, it is very important.After user selects " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs can be added in this option, and after being different application program preset pressure sensitivity parameters, enter the Application Program Interface selected and carry out touch operation, now touch-screen can detect the touch action of user, and then opens touch screen module.
As another specific embodiment, described step S11 specifically includes:
When detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, and select " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, then when the Application Program Interface execution touch operation that user enters selection being detected, according to the application program default pressure-sensitivity parameter being selected in " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, open touch screen module.Specifically, user can add " the pressure-sensitivity Automatic Optimal of touch-screen " option in mobile terminal arranges interface, then adding " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu under " the pressure-sensitivity Automatic Optimal of touch-screen " option, user can be according to the pressure-sensitivity automatic majorization function needing to decide whether unlatching touch-screen of oneself and the pressure-sensitivity application program automatic majorization function of touch-screen.If the user determine that need to arrange the pressure-sensitivity of the touch-screen being best suitable for this interface for the operation interface of different application, then need to open " the pressure-sensitivity Automatic Optimal of touch-screen " option and " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu simultaneously, then different application programs can be added in " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, and after being different application program preset pressure sensitivity parameters, enter the Application Program Interface selected and carry out touch operation, now touch-screen can detect the touch action of user, and then unlatching touch screen module.When application program such as " the fruit person of bearing " game is deleted by user from " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, this application program can also enjoy " the pressure-sensitivity Automatic Optimal of touch-screen " function, i.e. has the pressure-sensitivity running parameter identical with other operation interfaces of touch-screen.
As specific embodiment, described for different application program preset pressure sensitivity parameters particularly as follows:
Directly read the pressure-sensitivity numerical value preset in touch-screen driving chip register, the pressure-sensitivity parameter preset as different application, wherein, in the driving chip of touch-screen, all can pre-define a parameter value for the pressure-sensitivity of touch-screen；Or
Pressure-sensitivity numerical value after the described operation interface at touch-screen is touched regulation, the pressure-sensitivity parameter that the pressure-sensitivity parameter preset as different application, i.e. different application are preset can be obtained by the running parameter after " the pressure-sensitivity Automatic Optimal of touch-screen " function optimization.
As specific embodiment, in described step S12, about principle and the method for touch pressure data described in Real-time Collection, describe in detail below with reference to the two kinds of touch-screen of resistance-type and condenser type.
(1) resistive touch screen:
Electric resistance touch screen is to use resistive mode analog quantity technology, it is that one layer of glass is as basic unit, scribbling layer of transparent oxidized metal (such as ITO tin indium oxide) conductive layer above, then be stamped the smooth plastic layer of one layer of glass or outer surface cure process, its inner surface is also coated with one layer of ITO conductive layer.Having many tiny transparent isolation points that two conductive layers are separated insulation between them, whenever having pen or finger down, two conductive layers just contact with each other.
The two ends of conductive layer are coated with an elargol, are referred to as the pair of electrodes of this working face.Wherein, in upper and lower two conductive layers, one is horizontally oriented, and one is vertical direction, is respectively used for measuring the coordinate position of X and Y, and electrode in the horizontal plane is referred to as X+ electrode and X-electrode, and the electrode at perpendicular is referred to as Y+ electrode and Y-electrode.During work, two electrodes are according to measuring needs, it is provided that reference voltage or measure as the position measuring end butt contact.In time measuring the X-coordinate of contact point, X+ electrode and X-electrode on conductive layer add reference voltage and ground respectively；Y electrode is not added with voltage, then can form uniform voltage's distribiuting between X electrode, and with Y+ electrode as measuring point, the magnitude of voltage obtained is changed through A/D, so that it may judge the X-coordinate of contact point accordingly.The measurement of Y coordinate is also similar, only need to make to Y electrode making alive that X electrode is not added with voltage into.
The principle 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, by this Conductivity formula it follows that the thickness of ITO electrical conductivity and ITO conducting film is inversely proportional to.The pressure touched is the biggest, and the ITO conducting film of contact point is the thinnest, and corresponding electrical conductivity is the biggest, resistance is the least.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:
Hereinafter will illustrate as a example by projected capacitive touch screen, projecting type capacitor scheme is generally divided into self-capacitance and mutual capacitance two kinds according to its scan mode.So-called from holding the electric capacity typically referring to scan electrode with ground composition, at the scan electrode laterally and longitudinally that the useful ITO of glass surface makes, between these electrode and ground, just constitute the two poles of the earth of an electric capacity.When being connected in parallel with a capacitor in circuit, so that the overall capacitance in this scan line changes the when of touch with hand or felt pen.Scanning when, control chip (IC) scans 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 speed is fast, scans through a scan period and has only to scan the scan electrode quantity that X+Y(X and Y is X-axis and Y-axis respectively) root.But, this scan mode may only complete to need singly to refer to touch and the identification function of current scale.
So-called mutual tolerance, it is simply that refer at the electric capacity that the infall of the horizontal and vertical ITO electrode of glass surface is formed.The scan mode of mutual tolerance is exactly the capacitance variations scanning each infall, judges the position of touch point.Just influencing whether the coupling of adjacent electrode when touching when, thus change the capacitance of infall, the scan mode of mutual tolerance can detect the capacitance variations after the capacitance in each crosspoint, and touch.Therefore, the sweep time that mutual tolerance needs is longer compared with from the scan mode held, and specifically needs Scanning Detction X × Y data.
Concrete measured pressure value when, substantially measure is the area size that contacts with touch-screen of finger, because the when of finger pressing, dynamics is the biggest, and corresponding contact surface is the biggest, pressure measxurement is converted into the problem that contact area is measured.Mutual tolerance scan mode, substantially scans the capacitance in each crosspoint on touch-screen, and when finger touches, the capacitance in all crosspoints of contact area all changes.By the crosspoint that capacitance changes being detected, just can draw the size of contact area, therewith it is known that the pressure size touched.
In capacitance touch screen driving chip, special register can be set to feed back size and the pressure-sensitivity numerical value of set touch pressure.
As specific embodiment, described step S13 specifically includes: if the arithmetic mean of instantaneous value of described touch pressure is more than the force value preset, then the pressure-sensitivity of default touch-screen is improved at least one grade；If the arithmetic mean of instantaneous value of described touch pressure is less than the force value preset, then the pressure-sensitivity of default touch-screen is reduced at least one grade, then by new pressure-sensitivity running parameter write touch screen module.Wherein, in described touch screen module, on the basis of the pressure-sensitivity of default touch-screen, according to certain intervals pressure sensitive angle value, forwardly and rearwardly it is set with multiple pressure-sensitivity running parameter grade.Specifically, according to arithmetic mean of instantaneous value and the difference of the force value preset of described touch pressure, calculate this difference multiple proportion corresponding with spaced pressure Sensitirity va1ue, improve or reduce corresponding grade according to this multiple proportion.
As preferably embodiment, the pressure-sensitivity control method of described touch-screen farther includes: the touch coordinate data collected reported, and the pressure-sensitivity of the touch-screen after regulation and the arithmetic mean of instantaneous value of touch pressure are write power down nonvolatile storage.Specifically, described touch coordinate data reports, and is to observe in different operation interfaces for the ease of user, and which region is its touch action be concentrated mainly on, and the design for touch-screen is further studied；The arithmetic mean of instantaneous value write power down nonvolatile storage of the described pressure-sensitivity by the touch-screen after regulation and touch pressure, while keeping relevant operating parameter, reads relevant running parameter for other application programs and also provides for conveniently.
Further, when detecting that 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 the corresponding automatic majorization function of optional closedown, uses the pressure-sensitivity running parameter currently optimizing out as follow-up default value；It is also possible to the pressure sensitive angle value of the touch-screen of acquiescence when recovering to dispatch from the factory, use as follow-up default value.Therefore, the pressure-sensitivity control method of the touch-screen that the present invention provides is very convenient, has the strongest practicality.
Refer to shown in Fig. 2, the present invention also provides for the pressure-sensitivity regulation system of a kind of touch-screen, and this system includes:
Detector unit 101, for detecting the touch operation that user performs on the touchscreen；
Open unit 102, for when detector unit detects that user performs touch operation on the touchscreen, open touch screen module；
Collecting unit 103, for Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
Analytic unit 104, for calculating the arithmetic mean of instantaneous value of nearest n times touch pressure, compares the force value that this value is default with touch screen module；
Processing unit 105, when the absolute value of arithmetic mean of instantaneous value with the difference of the force value preset for drawing described touch pressure when described analytic unit is more than or equal to predetermined threshold value, improves the pressure-sensitivity of default touch-screen or reduces at least one grade.
In the pressure-sensitivity regulation system of the touch-screen that the present invention provides, when detecting that user touches on the touchscreen, can be with Real-time Collection touch data, described touch data includes touch pressure, touch coordinate etc., calculate the touch pressure mean value that nearest n times gather, this touch pressure mean value is compared with the force value preset, according to comparative result, the pressure-sensitivity of touch-screen is adjusted, pressure-sensitivity running parameter is adjusted to the value of optimization.Therefore, the present invention can follow the tracks of the touch custom of user, regulate the pressure-sensitivity running parameter of touch-screen, so that the pressure sense of touch of touch-screen reaches optimum efficiency, solve the technical problem that in prior art, the pressure-sensitivity of touch-screen can not regulate, realize the effect that the pressure-sensitivity of touch-screen can regulate, improve the experience effect of user.
As a kind of specific embodiment, described detector unit 101 specifically includes:
First detection module, arranges interface for detection when user enters terminal, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, detection user starts the touch operation performed at the operation interface of touch-screen.Specifically, user can add " the pressure-sensitivity Automatic Optimal of touch-screen " option in mobile terminal arranges interface, and user can be according to the pressure-sensitivity automatic majorization function needing to decide whether unlatching touch-screen of oneself.If the user determine that need to arrange the pressure-sensitivity of touch-screen, then need to open " the pressure-sensitivity Automatic Optimal of touch-screen " option, then starting to touch at the operation interface of touch-screen, now touch-screen can detect the touch action of user, and then opens touch screen module.
As another kind of specific embodiment, described detector unit 101 specifically includes:
Second detection module, for detection, interface is set when user enters terminal, if user is pre-selected " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, detection user starts the touch operation performed at the Application Program Interface selected.Specifically, user can add " the pressure-sensitivity application program Automatic Optimal of touch-screen " option in mobile terminal arranges interface, and the interface that operates for different application arranges the pressure-sensitivity of the touch-screen being best suitable for this interface；Such as game " the fruit person of bearing " interface and dial interface, user typically has relatively fierce touch action in playing " the fruit person of bearing ", sensitivity simultaneously is too high may result in maloperation, affect game experiencing, so arranging different pressure-sensitivity running parameters for different application programs, it is very important.After user selects " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs can be added in this option, and after being different application program preset pressure sensitivity parameters, enter the Application Program Interface selected and carry out touch operation, now touch-screen can detect the touch action of user, and then opens touch screen module.
As another specific embodiment, described detector unit 101 specifically includes:
3rd detection module, for detection, interface is set when user enters terminal, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, and select " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, detection user starts the touch operation performed at the Application Program Interface selected.Specifically, user can add " the pressure-sensitivity Automatic Optimal of touch-screen " option in mobile terminal arranges interface, then adding " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu under " the pressure-sensitivity Automatic Optimal of touch-screen " option, user can be according to the pressure-sensitivity automatic majorization function needing to decide whether unlatching touch-screen of oneself and the pressure-sensitivity application program automatic majorization function of touch-screen.If the user determine that need to arrange the pressure-sensitivity of the touch-screen being best suitable for this interface for the operation interface of different application, then need to open " the pressure-sensitivity Automatic Optimal of touch-screen " option and " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu simultaneously, then different application programs can be added in " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, and after being different application program preset pressure sensitivity parameters, enter the Application Program Interface selected and carry out touch operation, now touch-screen can detect the touch action of user, and then unlatching touch screen module.When application program such as " the fruit person of bearing " game is deleted by user from " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, this application program can also enjoy " the pressure-sensitivity Automatic Optimal of touch-screen " function, i.e. has the pressure-sensitivity running parameter identical with other operation interfaces of touch-screen.
As specific embodiment, in described collecting unit 103, about principle and the method for touch pressure data described in Real-time Collection, describe in detail below with reference to the two kinds of touch-screen of resistance-type and condenser type.
(1) resistive touch screen:
Electric resistance touch screen is to use resistive mode analog quantity technology, it is that one layer of glass is as basic unit, scribbling layer of transparent oxidized metal (such as ITO tin indium oxide) conductive layer above, then be stamped the smooth plastic layer of one layer of glass or outer surface cure process, its inner surface is also coated with one layer of ITO conductive layer.Having many tiny transparent isolation points that two conductive layers are separated insulation between them, whenever having pen or finger down, two conductive layers just contact with each other.
The two ends of conductive layer are coated with an elargol, are referred to as the pair of electrodes of this working face.Wherein, in upper and lower two conductive layers, one is horizontally oriented, and one is vertical direction, is respectively used for measuring the coordinate position of X and Y, and electrode in the horizontal plane is referred to as X+ electrode and X-electrode, and the electrode at perpendicular is referred to as Y+ electrode and Y-electrode.During work, two electrodes are according to measuring needs, it is provided that reference voltage or measure as the position measuring end butt contact.In time measuring the X-coordinate of contact point, X+ electrode and X-electrode on conductive layer add reference voltage and ground respectively；Y electrode is not added with voltage, then can form uniform voltage's distribiuting between X electrode, and with Y+ electrode as measuring point, the magnitude of voltage obtained is changed through A/D, so that it may judge the X-coordinate of contact point accordingly.The measurement of Y coordinate is also similar, only need to make to Y electrode making alive that X electrode is not added with voltage into.
The principle 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, by this Conductivity formula it follows that the thickness of ITO electrical conductivity and ITO conducting film is inversely proportional to.The pressure touched is the biggest, and the ITO conducting film of contact point is the thinnest, and corresponding electrical conductivity is the biggest, resistance is the least.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:
Hereinafter will illustrate as a example by projected capacitive touch screen, projecting type capacitor scheme is generally divided into self-capacitance and mutual capacitance two kinds according to its scan mode.So-called from holding the electric capacity typically referring to scan electrode with ground composition, at the scan electrode laterally and longitudinally that the useful ITO of glass surface makes, between these electrode and ground, just constitute the two poles of the earth of an electric capacity.When being connected in parallel with a capacitor in circuit, so that the overall capacitance in this scan line changes the when of touch with hand or felt pen.Scanning when, control chip (IC) scans 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 speed is fast, scans through a scan period and has only to scan the scan electrode quantity that X+Y(X and Y is X-axis and Y-axis respectively) root.But, this scan mode may only complete to need singly to refer to touch and the identification function of current scale.
So-called mutual tolerance, it is simply that refer at the electric capacity that the infall of the horizontal and vertical ITO electrode of glass surface is formed.The scan mode of mutual tolerance is exactly the capacitance variations scanning each infall, judges the position of touch point.Just influencing whether the coupling of adjacent electrode when touching when, thus change the capacitance of infall, the scan mode of mutual tolerance can detect the capacitance variations after the capacitance in each crosspoint, and touch.Therefore, the sweep time that mutual tolerance needs is longer compared with from the scan mode held, and specifically needs Scanning Detction X × Y data.
Concrete measured pressure value when, substantially measure is the area size that contacts with touch-screen of finger, because the when of finger pressing, dynamics is the biggest, and corresponding contact surface is the biggest, pressure measxurement is converted into the problem that contact area is measured.Mutual tolerance scan mode, substantially scans the capacitance in each crosspoint on touch-screen, and when finger touches, the capacitance in all crosspoints of contact area all changes.By the crosspoint that capacitance changes being detected, just can draw the size of contact area, therewith it is known that the pressure size touched.
In capacitance touch screen driving chip, special register can be set to feed back size and the pressure-sensitivity numerical value of set touch pressure.
As specific embodiment, described processing unit 105 specifically includes:
First processing module, for the arithmetic mean of instantaneous value when described touch pressure more than the force value preset, then improves at least one grade by the pressure-sensitivity of default touch-screen；
Second processing module, for the arithmetic mean of instantaneous value when described touch pressure less than the force value preset, then reduces at least one grade by the pressure-sensitivity of default touch-screen；
Then by new pressure-sensitivity running parameter write touch screen module.Wherein, in described touch screen module, on the basis of the pressure-sensitivity of default touch-screen, according to certain intervals pressure sensitive angle value, forwardly and rearwardly it is set with multiple pressure-sensitivity running parameter grade.Specifically, according to arithmetic mean of instantaneous value and the difference of the force value preset of described touch pressure, calculate this difference multiple proportion corresponding with spaced pressure Sensitirity va1ue, improve or reduce corresponding grade according to this multiple proportion.
As preferably embodiment, the pressure-sensitivity regulation system of described touch-screen farther includes:
Reporting module, for reporting the touch coordinate data collected；And
Writing module, for writing power down nonvolatile storage by the pressure-sensitivity of the touch-screen after regulation and the arithmetic mean of instantaneous value of touch pressure.Specifically, described touch coordinate data reports, and is to observe in different operation interfaces for the ease of user, and which region is its touch action be concentrated mainly on, and the design for touch-screen is further studied；The arithmetic mean of instantaneous value write power down nonvolatile storage of the described pressure-sensitivity by the touch-screen after regulation and touch pressure, while keeping relevant operating parameter, reads relevant running parameter for other application programs and also provides for conveniently.
Further, when detecting that 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 the corresponding automatic majorization function of optional closedown, uses the pressure-sensitivity running parameter currently optimizing out as follow-up default value；It is also possible to the pressure sensitive angle value of the touch-screen of acquiescence when recovering to dispatch from the factory, use as follow-up default value.Therefore, the pressure-sensitivity regulation system of the touch-screen that the present invention provides is very convenient, has the strongest practicality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (11)
1. the pressure-sensitivity control method of a touch-screen, it is characterised in that the method comprises the following steps:
S11, when detecting that user performs touch operation on the touchscreen, open touch screen module；
S12, Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
S13, calculate the arithmetic mean of instantaneous value of nearest n times touch pressure, the force value that this value is default with touch screen module is compared, if the arithmetic mean of instantaneous value of touch pressure is more than or equal to predetermined threshold value with the absolute value of the difference of the force value preset, then the pressure-sensitivity of default touch-screen is improved or reduce at least one grade；
Described step S11 specifically includes: when detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, then when the Application Program Interface execution touch operation that user enters selection being detected, open touch screen module.
The pressure-sensitivity control method of touch-screen the most according to claim 1, it is characterised in that described step S11 the most also includes:
When detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, then, when detecting that user starts to perform touch operation at the operation interface of touch-screen, open touch screen module.
The pressure-sensitivity control method of touch-screen the most according to claim 1, it is characterised in that described step S11 the most also includes:
When detecting that user enters terminal and arranges interface, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, and select " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, then when the Application Program Interface execution touch operation that user enters selection being detected, according to the application program default pressure-sensitivity parameter being selected in " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, open touch screen module.
4. according to the pressure-sensitivity control method of the touch-screen described in claim 1 or 3, it is characterised in that described for different application program preset pressure sensitivity parameters particularly as follows:
Directly read the pressure-sensitivity numerical value preset in touch-screen driving chip register, the pressure-sensitivity parameter preset as different application；Or
Pressure-sensitivity numerical value after the described operation interface at touch-screen is touched regulation, the pressure-sensitivity parameter preset as different application.
The pressure-sensitivity control method of touch-screen the most according to claim 1, it is characterized in that, described step S13 specifically includes: if the arithmetic mean of instantaneous value of described touch pressure is more than the force value preset, then the pressure-sensitivity of default touch-screen is improved at least one grade；If the arithmetic mean of instantaneous value of described touch pressure is less than the force value preset, then the pressure-sensitivity of default touch-screen is reduced at least one grade.
The pressure-sensitivity control method of touch-screen the most according to claim 1, it is characterized in that, farther include after step s 13: the touch coordinate data collected is reported, and the pressure-sensitivity of the touch-screen after regulation and the arithmetic mean of instantaneous value of touch pressure are write power down nonvolatile storage.
7. the pressure-sensitivity regulation system of a touch-screen, it is characterised in that this system includes:
Detector unit, for detecting the touch operation that user performs on the touchscreen；
Open unit, for when detector unit detects that user performs touch operation on the touchscreen, open touch screen module；
Collecting unit, for Real-time Collection touch data, described touch data includes touch pressure, touch coordinate；
Analytic unit, for calculating the arithmetic mean of instantaneous value of nearest n times touch pressure, compares the force value that this value is default with touch screen module；
Processing unit, when the absolute value of arithmetic mean of instantaneous value with the difference of the force value preset for drawing described touch pressure when described analytic unit is more than or equal to predetermined threshold value, improves the pressure-sensitivity of default touch-screen or reduces at least one grade；
Described detector unit specifically includes:
Second detection module, for detection, interface is set when user enters terminal, if user is pre-selected " the pressure-sensitivity application program Automatic Optimal of touch-screen " option, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, detection user starts the touch operation performed at the Application Program Interface selected.
The pressure-sensitivity regulation system of touch-screen the most according to claim 7, it is characterised in that described detector unit specifically includes:
First detection module, arranges interface for detection when user enters terminal, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, detection user starts the touch operation performed at the operation interface of touch-screen.
The pressure-sensitivity regulation system of touch-screen the most according to claim 7, it is characterised in that described detector unit specifically includes:
3rd detection module, for detection, interface is set when user enters terminal, if user is pre-selected " the pressure-sensitivity Automatic Optimal of touch-screen " option, and select " the pressure-sensitivity application program Automatic Optimal of touch-screen " menu, different application programs is added in this option, and be different application program preset pressure sensitivity parameters, detection user starts the touch operation performed at the Application Program Interface selected.
The pressure-sensitivity regulation system of touch-screen the most according to claim 7, it is characterised in that described processing unit specifically includes:
First processing module, during for showing that when described analytic unit the arithmetic mean of instantaneous value of described touch pressure is more than the force value preset, improves at least one grade by the pressure-sensitivity of default touch-screen；
Second processing module, during for showing that when described analytic unit the arithmetic mean of instantaneous value of described touch pressure is less than the force value preset, reduces at least one grade by the pressure-sensitivity of default touch-screen.
The pressure-sensitivity regulation system of 11. touch-screens according to claim 7, it is characterised in that described system farther includes:
Reporting module, for reporting the touch coordinate data collected；
Writing module, for writing power down nonvolatile storage by the pressure-sensitivity of the touch-screen after regulation and the arithmetic mean of instantaneous value of touch pressure.
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