Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment to the application is described in further detail.Hereinafter implementExample is not limited to the scope of the present invention for illustrating the present invention.
A kind of schematic flow sheet of distribution determination method embodiment that Fig. 1 is provided for the application.As shown in figure 1, this implementationExample includes：
110th, capacitance profile of multiple capacitance type sensors under at least two driving voltages on a display screen is obtained.
For example, the application provide distribution determining device as the present embodiment executive agent, i.e., and execution 110~120.Specifically, the distribution determining device can be set in the display device in the form of software and/or hardware, alternatively, instituteDisplay screen is stated to be also disposed in the user equipment, or, the distribution apparatus is inherently provided with the aobvious of the display screenShow equipment.
In the present embodiment, at least two driving voltage refers to the different driving voltage of at least two magnitudes of voltage.
In the present embodiment, multiple capacitance type sensors can be provided in the electric capacity on the display screen on the display screenCapacitance type sensor in formula touch-screen, or, the capacitance type sensor of other forms.In the presence of driving voltage, when oneWhen conductor (such as beholder) is near the display screen, the electric field of the conductor can be to nearer with the conductor distance on the display screenThe capacitance of capacitance type sensor produces influence, and generally, in the presence of identical driving voltage, the distance with the conductor is nearerCapacitance type sensor capacitance it is bigger.
The capacitive touch screen includes respectively from top to bottom：Protective layer (Protective cover), electrode style layer(Electrode pattern layer), glass substrate (Glass substrate), wherein, electrode style layer is generally by transparentElectrode layer (Transparent electrode layer) X and transparent electrode layer Y are constituted, transparent in the presence of driving voltageThe electrode in an electrode and transparent electrode layer Y in electrode layer X may be constructed a capacitance type sensor.
In the present embodiment, the capacitance profile refers to the distribution of capacitance, not only with the multiple capacitance type sensorCapacitance is relevant, relevant with distribution of the multiple capacitance type sensor in the touch-screen.
120th, according at least to the capacitance profile under at least two driving voltage, the display screen front at least is determinedThe distribution of individual conductor.
Generally, in the presence of different driving voltages, capacitance type sensor is suitable for detecting the electric field of different distance；SwashEncourage voltage bigger, capacitance type sensor is suitable for the more remote electric field of detection.
Alternatively, at least two driving voltage is corresponded with least two spaces of display screen front.SpecificallyGround, in the presence of each driving voltage, the capacitance profile of the multiple capacitance type sensor can relatively accurately reflect thisThe distribution of electric field in the corresponding space of driving voltage.Wherein, because the magnitude of voltage of at least two driving voltage is different, instituteThe distance at least two spaces and the touch-screen is stated, in other words distance range, it is generally also different.Alternatively, described at least twoIndividual space can be overlap with the distance range of the touch-screen, or, not overlapping, the present embodiment is not construed as limiting to this.
For example, the corresponding space of a driving voltage and the distance range of the display screen are [5 centimetres, 10 lisRice], the distance range of the another corresponding space of driving voltage and the display screen is [20 centimetres, 30 centimetres]；Illustrate to come againSay, the corresponding space of a driving voltage is [5 centimetres, 15 centimetres] with the distance range of display, and another driving voltage is correspondingOne space is [12 centimetres, 30 centimetres] with the distance range of the display.
The present embodiment by adjusting on display screen the driving voltage of multiple capacitance type sensors, to display screen front notElectric Field Distribution in the space of same distance carries out demixing scan, so that it is determined that the distribution of display screen front conductor, there is provided a kind ofDetermine the scheme of display screen front conductor distribution, be determined for the distribution of display screen front beholder, and use electric capacityFormula sensor detects that cost and system complexity be relatively low.
Below by the method that some optional implementations are further described through the present embodiment.
In the 110 of the present embodiment, successively can be swashed with each at least two driving voltage in sequenceVoltage is encouraged to encourage the multiple capacitance type sensors in the touch-screen, specifically, the excitation of at least two driving voltageOrder can be arbitrary, or, the adjustable strategies of driving voltage are set according to the display screen local environment, or, according toThe capacitance profile for obtaining before adjusts driving voltage next time.
In a kind of optional implementation, multiple capacitance type sensors swash at least two on one display screen of the acquisitionThe capacitance profile under voltage is encouraged, including：
Obtain first capacitance profile of multiple first capacitance type sensors under one first driving voltage on the display screen.
Alternatively, obtaining after first capacitance profile, can determined next time according to first capacitance profileDriving voltage.
A kind of possible scene is that multiple capacitance type sensors are at least two driving voltages on one display screen of the acquisitionUnder capacitance profile, also include：
There is flat-top electric capacity crest in response to the maximum capacity region in first capacitance profile, obtain the display screenSecond capacitance profile of upper multiple second capacitance type sensors under one second driving voltage less than first driving voltage.
It should be noted that under the driving voltage effect of same magnitude of voltage, the electric capacity of different capacitance type sensors dividesCloth may reflect the Electric Field Distribution of different spaces.The electricity for being reflected with the capacitance profile corresponding space representation capacitance profile belowSpace belonging to field distribution.
Generally, when there is at least one conductor in the middle of the corresponding space of the first capacitance profile and the display screen, byIn at least one conductor and the display screen distance than the space closer to, therefore, the electric field meeting of at least one conductorBeyond the detectivity of the capacitance type sensor under the effect of the first driving voltage, and to detect in the space with this at least oneElectric field in the corresponding scope of electric field of individual conductor is formed and stopped, therefore, a presence can be presented in first capacitance profileThe maximum capacity region of flat-top electric capacity crest.Correspondingly, in order to preferably detect at least one conductor, excitation electricity can be reducedPressure.
Fig. 2A is a kind of schematic diagram of the capacitance profile under this scene.The upper figure of Fig. 2A is that the plane of capacitance profile is illustratedFigure, black net region is background, and the region equivalent to capacitance less than lower limit, color more superficial shows that capacitance is higher；FigureFigure below of 2A is the two-dimensional coordinate figure of capacitance, and transverse axis represents capacitance type sensor one-dimensional coordinate on a display screen, longitudinal axis tableShow capacitance；Fig. 2 B~2G is also similar, is not being repeated.As shown in Figure 2 A, white portion in the capacitance profile shown in upper figureIt is maximum capacity region, accordingly, the corresponding region of horizontal line is maximum capacity region in the coordinate diagram shown in figure below, can from figure belowTo find out, there is flat-top electric capacity crest in maximum capacity region.It should be noted that humanoid in the upper figure of Fig. 2A is only used to showMeaning, and the non-limiting conductor is people, Fig. 2 B~2G is also similar.
Fig. 2 B are the schematic diagram of another capacitance profile under this scene.As shown in Figure 2 B, the capacitance profile shown in upper figureMiddle white portion is maximum capacity region, and accordingly, the corresponding region of horizontal line is maximum capacity area in the coordinate diagram shown in figure belowDomain, from figure below as can be seen that maximum capacity region has flat-top electric capacity crest.
Wherein, encourage every time which capacitance type sensor in the touch-screen can be it is pre-set, specifically,The multiple first capacitance type sensor and second capacitance type sensor can with identical, or, it is different.Or, swash every timeEncourage which capacitance type sensor on the display screen may be referred to the capacitance profile that is obtained after last excitation to determine.
Alternatively, methods described also includes：
According to the distribution of first capacitance profile and the multiple first capacitance type sensor on the display screen,Determine the multiple second capacitance type sensor.
Specifically, distribution of the multiple first capacitance type sensor on the display screen is largely fixed,The corresponding space of first capacitance profile projects the scope of plane where the display screen.For example, when described firstCapacitance profile reflects, when electric field is stronger in the corresponding spatial dimension of right side area of the display screen, it is determined that described manyCan select the more capacitance type sensor of right side area on the display screen during individual second capacitance type sensor, then withThe multiple second capacitance type sensor of second activation voltage, it is upper right such that it is able to preferably be reflected the display screenSecond capacitance profile of Electric Field Distribution in the corresponding space of side region.
Specifically, the multiple second capacitance type sensor of above-mentioned determination may be with the multiple first capacitive sensingDevice is identical, or, it is different.
Another possible scene is that multiple capacitance type sensors are at least two excitation electricity on one display screen of the acquisitionThe capacitance profile of pressure, also includes：
One is no more than in response to the difference in first capacitance profile in the absence of maximum capacity region and each capacitanceSecond Threshold, obtains multiple 3rd capacitance type sensors on the display screen and swashs in the 3rd higher than first driving voltageEncourage the 3rd capacitance profile under voltage.
Generally, when not existing conductor in the corresponding space of the first capacitance profile, the Electric Field Distribution in the space relatively connectsElectric Field Distribution in nearly free space, further, if also not existing conductor between the space and the display screen, does not depositIn the stop for detecting the Electric Field Distribution in the space, correspondingly, capacitance profile is than more uniform in first capacitance profile.Correspondingly, under this scene, for preferably detecting conductor, driving voltage can be improved, with display screen described in detection range moreRemote space.
Fig. 2 C are a kind of schematic diagram of the capacitance profile under this scene.As shown in Figure 2 C, the capacitance profile shown in upper figure compared withUniformly, accordingly, capacitance does not almost fluctuate in the coordinate diagram shown in figure below.
Wherein, which capacitance type sensor encouraged every time in the touch-screen can be pre-set, toolBody ground, the multiple first capacitance type sensor and the multiple 3rd capacitance type sensor can with identical, or, it is different.OrPerson, the capacitance profile for encouraging which capacitance type sensor on the display screen to may be referred to be obtained after last excitation every time is comeDetermine.
Alternatively, methods described also includes：
According to the distribution of first capacitance profile and the multiple first capacitance type sensor on the display screen,Determine the multiple 3rd capacitance type sensor.
Specifically, distribution of the multiple first capacitance type sensor on the display screen is largely fixed,The corresponding space of first capacitance profile projects the scope of plane where the display screen.For example, when described firstWhen capacitance profile reflects that electric field is stronger in the corresponding spatial dimension of right side area of the display screen, it is determined that the multipleThe more capacitance type sensor of right side area on the display screen can be selected during three capacitance type sensors, then withThe multiple 3rd capacitance type sensor of three activation voltages, such that it is able to preferably be reflected right side on the display screen3rd capacitance profile of Electric Field Distribution in the corresponding space in region.
It should be noted that the multiple 3rd capacitance type sensor of above-mentioned determination may be with the multiple first electric capacityFormula sensor is identical, or, it is different.
In the present embodiment, the distribution of at least one conductor includes but is not limited to following at least one：Described at least oneThe number of individual conductor, the relative bearing between at least one conductor, the phase of at least one conductor and the display screenTo orientation.
The relative bearing of the relative bearing between number, conductor specifically, for conductor, conductor and the display screen,There is the mode of various determinations.
The electric field of its surrounding air is typically much stronger than due to the electric field of conductor, therefore, reflect the electric field in the affiliated space of the conductorCan correspondingly occur the corresponding pinnacle electric capacity crest of the conductor in the capacitance profile of distribution.It should be noted that ought be at leastWhen between two conductors closely, the gap between at least two conductor is very small even very close to each other, such as twoBy together, at least two conductor may only be presented as a pinnacle to beholder in the corresponding capacitance profile in affiliated spaceElectric capacity crest.Based on this, in the application it is determined that conductor distribution when may be by distance at least two conductors closelyIt is considered as a conductor.
For the number of conductor, alternatively, the capacitance profile according at least under at least two driving voltage, reallyThe distribution of at least one conductor of the fixed display screen front, including：
In response to existing extremely in the 4th capacitance profile under one the 4th driving voltage at least two driving voltageA few pinnacle electric capacity crest, it is determined that the number of conductor in the corresponding space of the 4th capacitance profile for it is described at leastOne number of pinnacle electric capacity crest.
Fig. 2 D~2G is respectively a kind of a kind of schematic diagram of the capacitance profile under possible scene.As shown in Figure 2 D, figure belowThere is a pinnacle electric capacity crest in shown coordinate diagram, based on this, it may be determined that deposited in the space corresponding to the capacitance profileIn a humanoid conductor as shown above.As shown in Figure 2 E, there are two pinnacle electric capacity crests in the coordinate diagram shown in figure below,Based on this, it may be determined that there is two humanoid conductors as shown above in the space corresponding to the capacitance profile.Such as Fig. 2 F institutesShow there are three pinnacle electric capacity crests in the coordinate diagram shown in figure below, based on this, it may be determined that the sky corresponding to the capacitance profileBetween it is middle exist three humanoid conductors as shown above.As shown in Figure 2 G, there are three pinnacle electricity in the coordinate diagram shown in figure belowHold crest, based on this, it may be determined that there is three humanoid conductors as shown above in the space corresponding to the capacitance profile.
Alternatively, for any electric capacity that there is at least one pinnacle electric capacity crest in the 110 all capacitance profiles for obtainingDistribution, can determine the number of the conductor in the corresponding space of the capacitance profile.Further, according to the conductor in each spaceNumber sum, it may be determined that the total number of the conductor in front of the display screen.
It is alternatively, described according at least under at least two driving voltage for conductor and the relative bearing of display screenCapacitance profile, determine the distribution of at least one conductor of display screen front, including：
In response to existing extremely in the 5th capacitance profile under one the 5th driving voltage at least two driving voltageA few pinnacle electric capacity crest, according to obtaining multiple capacitance type sensors of the 5th capacitance profile on the display screenDistribution, distribution, the electricity of fiveth driving voltage of at least one pinnacle electric capacity crest in the 5th capacitance profilePressure value, it is determined that the contra of at least one conductor in the corresponding space of the 5th capacitance profile and the display screenPosition.
Specifically, according to obtain multiple capacitance type sensors of the 5th capacitance profile on the display screen pointThe magnitude of voltage of cloth, the 5th driving voltage, it may be determined that the corresponding space of the 5th capacitance profile and the display screenRelative bearing, the further distribution with reference at least one pinnacle electric capacity crest in the 5th capacitance profile can be withObtain the relative bearing of at least one conductor and the display screen in the corresponding space of the 5th capacitance profile.
By taking the scene shown in Fig. 2 D as an example, a pinnacle electric capacity crest can be seen that by upper figure and figure below and be located at electric capacityThe centre of distribution, if the corresponding space of the capacitance profile is the space immediately ahead of display screen, it may be determined that the pinnacleThe corresponding conductor of electric capacity crest is located at the front of the display screen, if the corresponding space of the capacitance profile is left positioned at display screenDuring one space in front, it may be determined that the corresponding conductor of pinnacle electric capacity crest is located at the left front of the display screen.
By taking the scene shown in Fig. 2 E as an example, two pinnacle electric capacity crests can be seen that by upper figure and figure below and be located at respectivelyThe left side and right side of capacitance profile, pinnacle electric capacity crest A is designated as by the pinnacle electric capacity crest for being located at left side, will be located at the point on right sideTop capacity crest is designated as pinnacle electric capacity crest B, if the corresponding space of the capacitance profile is the space immediately ahead of display screenWhen, it may be determined that electric capacity crest A corresponding conductors in pinnacle are located at the left front of the display screen, and electric capacity crest B is corresponding on pinnacleConductor is located at the right front of the display screen.
Alternatively, for any electric capacity that there is at least one pinnacle electric capacity crest in the 110 all capacitance profiles for obtainingDistribution, can determine the relative bearing of at least one conductor and the display screen in the corresponding space of the capacitance profile.
For the relative bearing between conductor, alternatively, the electricity according at least under at least two driving voltageHold distribution, determine the distribution of at least one conductor of the display screen front, including：
In response to there is multiple in the 6th capacitance profile under one the 6th driving voltage at least two driving voltagePinnacle electric capacity crest, according to relative bearing of multiple pinnacle electric capacity crests in the 6th capacitance profile, it is determined that describedThe relative bearing between multiple conductors in the corresponding space of six capacitance profiles.
Specifically, when a conductor is distributed with a space, because the electric field of the conductor is typically much stronger than its surrounding airElectric field, therefore, reflect the space Electric Field Distribution capacitance profile in can correspondingly go out at position corresponding with the conductorAn existing pinnacle electric capacity crest.
By taking the scene shown in Fig. 2 F as an example, three pinnacle electric capacity crests can be seen that in electric capacity point by upper figure and figure belowFrom left to right it is arranged in order in cloth, the pinnacle electric capacity crest for being located at left side is designated as pinnacle electric capacity crest A, the point on right side will be located atTop capacity crest is designated as pinnacle electric capacity crest B, the pinnacle electric capacity crest for being located at middle is designated as into pinnacle electric capacity crest C, according to electricityHold electric capacity crest C in pinnacle in distribution to be located in the middle of pinnacle electric capacity crest A and pinnacle electric capacity crest B, it may be determined that in the electric capacity pointIn the corresponding space of cloth, electric capacity crest C corresponding conductors in pinnacle are located at the corresponding conductors of pinnacle electric capacity crest A and pinnacle electric capacity rippleIn the middle of the corresponding conductors of peak B.
By taking the scene shown in Fig. 2 G as an example, three pinnacle electric capacity crests can be seen that in electric capacity point by upper figure and figure belowFrom left to right it is arranged in order in cloth, the pinnacle electric capacity crest for being located at left side is designated as pinnacle electric capacity crest A, the point on right side will be located atTop capacity crest is designated as pinnacle electric capacity crest B, will be located at middle pinnacle electric capacity crest and be designated as pinnacle electric capacity crest C；According to electricityHold electric capacity crest C in pinnacle in distribution to be located in the middle of pinnacle electric capacity crest A and pinnacle electric capacity crest B, it may be determined that in the electric capacity pointIn the corresponding space of cloth, electric capacity crest C corresponding conductors in pinnacle are located at the corresponding conductors of pinnacle electric capacity crest A and pinnacle electric capacity rippleIn the middle of the corresponding conductors of peak B；Capacitance according to pinnacle electric capacity crest C is higher than pinnacle electric capacity crest A and pinnacle electric capacity crestIt is corresponding that the corresponding conductor of B, it may be determined that with the display screen as reference, pinnacle electric capacity crest C is located at pinnacle electric capacity crest AThe front of conductor and the corresponding conductors of pinnacle electric capacity crest B, i.e. electric capacity crest C corresponding conductors in pinnacle are than pinnacle electric capacity crest ACorresponding conductor and the corresponding conductors of pinnacle electric capacity crest B are closer to the display screen.
Alternatively, for any capacitance profile that there is multiple pinnacles electric capacity crest in the 110 all capacitance profiles for obtaining,The relative bearing between the multiple conductors in the corresponding space of the capacitance profile can be determined.
For the relative bearing between conductor, alternatively, the electricity according at least under at least two driving voltageHold distribution, determine the distribution of at least one conductor of the display screen front, including：
In response to the 7th capacitance profile and the 8th under one the 7th driving voltage at least two driving voltageThere is at least one pinnacle electric capacity crest in the 8th capacitance profile under driving voltage, according to obtaining the 7th capacitance profileDistribution of multiple capacitance type sensors on the display screen, obtain multiple capacitance type sensors of the 8th capacitance profileDistribution, the magnitude of voltage of the 7th driving voltage on the display screen, the magnitude of voltage of the 8th driving voltage, determine instituteState at least one conductor and the corresponding space of the 8th capacitance profile in the corresponding space of the 7th capacitance profileRelative bearing between at least one conductor.
Specifically, according to obtain multiple capacitance type sensors of the 7th capacitance profile on the display screen pointThe magnitude of voltage of cloth, the 7th driving voltage, it may be determined that the corresponding space of the 7th capacitance profile and the display screenRelative bearing；According to obtaining distribution of the multiple capacitance type sensors of the 8th capacitance profile on the display screen, describedThe magnitude of voltage of the 8th driving voltage, it may be determined that the contra of the corresponding space of the 8th capacitance profile and the display screenPosition；Based on above-mentioned two relative bearing, it may be determined that the corresponding space of the 7th capacitance profile and the 8th capacitance profileThe relative bearing in corresponding space, and the phase that the relative bearing between each space can generally reflect between each space inner wireTo orientation.
For example, if the 7th capacitance profile it is corresponding be spatially located at display screen front, and with the display screen away fromFrom in the range of 50 centimetres~100 centimetres, the corresponding space of the 8th capacitance profile also is located at immediately ahead of the display screen, and withThe distance of the display screen in the range of 150 centimetres~200 centimetres, then when the corresponding space of the 7th capacitance profile, the 8th electricityWhen there is conductor in the corresponding space of appearance distribution, it may be determined that with the display screen as reference, the corresponding sky of the 7th capacitance profileThe front of conductor of the interior conductor in the corresponding space of the 8th capacitance profile, i.e. in the corresponding space of the 7th capacitance profileConductor space more corresponding than the 8th capacitance profile in conductor closer to display screen.
Alternatively, there is at least one pinnacle electric capacity crest for any two in the 110 all capacitance profiles for obtainingCapacitance profile, can determine two capacitance profiles distinguish corresponding space inner wire between relative bearing.
In the present embodiment, 120 at least one conductors for determining are distributed with multiple use.
In a kind of optional implementation, as shown in figure 3, the present embodiment also includes：
130th, according to the distribution of at least one conductor, the display content and/or display parameters of the display screen are set.
Generally, the conductor in front of display screen for beholder possibility it is larger, therefore, it can by the display screen frontAt least one conductor be accordingly to be regarded as beholder, correspondingly, the distribution of at least one conductor is at least one beholderDistribution, such that it is able to set display content and/or display parameters according to the distribution of at least one beholder of display screen front.
Wherein, the display parameters can include but is not limited to 3D display parameters.Alternatively, the 3D display parameters includeBut it is not limited to following at least one：Optimal viewing areas, display brightness, display resolution that bore hole 3D shows etc..
In another optional implementation, the present embodiment also includes：According to the distribution of at least one conductor, it is determined thatThe display screen local environment.
For example, when having many conductors in a range of space in display screen front, it may be determined that described aobviousDisplay screen local environment is a public place；When only one or two conductor in a range of space in display screen front, canTo determine that the display screen local environment is a private site.
Optionally it is determined that the display screen local environment can be some application support be provided, than such as whether describedThe content of more secret is shown in display screen.
In another optional implementation, the display screen can also be rotated according to the distribution of at least one conductorDirection, such as, the display screen is turned to the space of more conductor is distributed with.
A kind of structural representation of distribution determining device embodiment one that Fig. 4 A are provided for the application.As shown in Figure 4 A, divideCloth determining device (hereinafter referred to as device) 400 includes：
Acquisition module 41, for obtaining electricity of multiple capacitance type sensors under at least two driving voltages on a display screenHold distribution；
Distribution determining module 42, for according at least to the capacitance profile under at least two driving voltage, it is determined that describedThe distribution of at least one conductor of display screen front.
The device 400 of the present embodiment can be set in the display device in the form of software and/or hardware, alternatively, describedDisplay screen is also disposed in the display device, or, the device 400 of the present embodiment is inherently provided with the display screenDisplay device.
In the present embodiment, at least two driving voltage refers to the different driving voltage of at least two magnitudes of voltage.
In the present embodiment, multiple capacitance type sensors can be provided in the electric capacity on the display screen on the display screenCapacitance type sensor in formula touch-screen, or, the capacitance type sensor of other forms.In the presence of driving voltage, when oneWhen conductor (such as beholder) is near the display screen, the electric field of the conductor can be to nearer with the conductor distance on the display screenThe capacitance of capacitance type sensor produces influence, and generally, in the presence of identical driving voltage, the distance with the conductor is nearerCapacitance type sensor capacitance it is bigger.
The capacitive touch screen includes respectively from top to bottom：Protective layer (Protective cover), electrode style layer(Electrode pattern layer), glass substrate (Glass substrate), wherein, electrode style layer is generally by transparentElectrode layer (Transparent electrode layer) X and transparent electrode layer Y are constituted, transparent in the presence of driving voltageThe electrode in an electrode and transparent electrode layer Y in electrode layer X may be constructed a capacitance type sensor.
In the present embodiment, the capacitance profile refers to the distribution of capacitance, not only with the multiple capacitance type sensorCapacitance is relevant, relevant with distribution of the multiple capacitance type sensor in the touch-screen.
Generally, in the presence of different driving voltages, capacitance type sensor is suitable for detecting the electric field of different distance；SwashEncourage voltage bigger, capacitance type sensor is suitable for the more remote electric field of detection.
Alternatively, at least two driving voltage is corresponded with least two spaces of display screen front.SpecificallyGround, in the presence of each driving voltage, the capacitance profile of the multiple capacitance type sensor can relatively accurately reflect thisThe distribution of electric field in the corresponding space of driving voltage.Wherein, because the magnitude of voltage of at least two driving voltage is different, instituteThe distance at least two spaces and the touch-screen is stated, in other words distance range, it is generally also different.Alternatively, described at least twoIndividual space can be overlap with the distance range of the touch-screen, or, not overlapping, the present embodiment is not construed as limiting to this.
For example, the corresponding space of a driving voltage and the distance range of the display screen are [5 centimetres, 10 lisRice], the distance range of the another corresponding space of driving voltage and the display screen is [20 centimetres, 30 centimetres]；Illustrate to come againSay, the corresponding space of a driving voltage is [5 centimetres, 15 centimetres] with the distance range of display, and another driving voltage is correspondingOne space is [12 centimetres, 30 centimetres] with the distance range of the display.
The present embodiment by adjusting on display screen the driving voltage of multiple capacitance type sensors, to display screen front notElectric Field Distribution in the space of same distance carries out demixing scan, so that it is determined that the distribution of display screen front conductor, there is provided a kind ofDetermine the scheme of display screen front conductor distribution, be determined for the distribution of display screen front beholder, and use electric capacityFormula sensor detects that cost and system complexity be relatively low.
The device 400 of the present embodiment is further described through below by some optional implementations.
The acquisition module 41 of the present embodiment can in sequence successively with every at least two driving voltageIndividual driving voltage encourages the multiple capacitance type sensors in the touch-screen, specifically, at least two driving voltageExcitation order can be arbitrary, or, the adjustable strategies of driving voltage are set according to the display screen local environment, or,Driving voltage next time is adjusted according to the capacitance profile for obtaining before.
In a kind of optional implementation, as shown in Figure 4 B, acquisition module 41 includes：
First acquisition unit 411, encourages for obtaining multiple first capacitance type sensors on the display screen one firstCapacitance profile under voltage.
Alternatively, after first acquisition unit 411 obtains first capacitance profile, can be according to first electric capacity pointCloth determines driving voltage next time.
A kind of possible scene is that acquisition module 41 also includes：
Second acquisition unit 412, in response to the highest electricity in the first capacitance profile under first driving voltageHold region and there is flat-top electric capacity crest, obtain multiple second capacitance type sensors on the display screen and encouraged less than described firstThe second capacitance profile under one second driving voltage of voltage.
It should be noted that under the driving voltage effect of same magnitude of voltage, the electric capacity of different capacitance type sensors dividesCloth may reflect the Electric Field Distribution of different spaces.The electricity for being reflected with the capacitance profile corresponding space representation capacitance profile belowSpace belonging to field distribution.
Generally, when there is at least one conductor in the middle of the corresponding space of the first capacitance profile and the display screen, byIn at least one conductor and the display screen distance than the space closer to, therefore, the electric field meeting of at least one conductorBeyond the detectivity of the capacitance type sensor under the effect of the first driving voltage, and to detect in the space with this at least oneElectric field in the corresponding scope of electric field of individual conductor is formed and stopped, therefore, first electric capacity that first acquisition unit 411 is obtainedA maximum capacity region that there is flat-top electric capacity crest can be presented in distribution.Correspondingly, in order to preferably detect this at least oneConductor, can reduce driving voltage.
Fig. 2A is a kind of schematic diagram of the capacitance profile under this scene.The upper figure of Fig. 2A is that the plane of capacitance profile is illustratedFigure, black net region is background, and the region equivalent to capacitance less than lower limit, color more superficial shows that capacitance is higher；FigureFigure below of 2A is the two-dimensional coordinate figure of capacitance, and transverse axis represents capacitance type sensor one-dimensional coordinate on a display screen, longitudinal axis tableShow capacitance；Fig. 2 B~2G is also similar, is not being repeated.As shown in Figure 2 A, white portion in the capacitance profile shown in upper figureIt is maximum capacity region, accordingly, the corresponding region of horizontal line is maximum capacity region in the coordinate diagram shown in figure below, can from figure belowTo find out, there is flat-top electric capacity crest in maximum capacity region.It should be noted that humanoid in the upper figure of Fig. 2A is only used to showMeaning, and the non-limiting conductor is people, Fig. 2 B~2G is also similar.
Fig. 2 B are the schematic diagram of another capacitance profile under this scene.As shown in Figure 2 B, the capacitance profile shown in upper figureMiddle white portion is maximum capacity region, and accordingly, the corresponding region of horizontal line is maximum capacity area in the coordinate diagram shown in figure belowDomain, from figure below as can be seen that maximum capacity region has flat-top electric capacity crest.
Wherein, encourage every time which capacitance type sensor in the touch-screen can be it is pre-set, specifically,The multiple first capacitance type sensor and second capacitance type sensor can with identical, or, it is different.Or, swash every timeEncourage which capacitance type sensor on the display screen may be referred to the capacitance profile that is obtained after last excitation to determine.
Alternatively, as shown in Figure 4 C, acquisition module 41 also includes：
First sensor determining unit 413, for according to first capacitance profile and the multiple first condenser typeDistribution of the sensor on the display screen, determines the multiple second capacitance type sensor.
Specifically, distribution of the multiple first capacitance type sensor on the display screen is largely fixed,The corresponding space of first capacitance profile projects the scope of plane where the display screen.For example, when first obtainsFirst capacitance profile that unit 411 is obtained reflects, electric in the corresponding spatial dimension of right side area of the display screenWhen stronger, first sensor determining unit 413 is it is determined that can select more during the multiple second capacitance type sensorThe capacitance type sensor of right side area on the display screen, then with the multiple second condenser type of the second activation voltageSensor, so as to second acquisition unit 412 can be obtained preferably reflect on the display screen in the corresponding space of right side areaSecond capacitance profile of Electric Field Distribution.
Specifically, first sensor determining unit 413 determine the multiple second capacitance type sensor may with it is describedMultiple first capacitance type sensors are identical, or, it is different.
Another possible scene is that as shown in Figure 4 D, acquisition module 41 also includes：
3rd acquiring unit 414, in response to not existing most in the first capacitance profile under first driving voltageThe difference of high capacitance region and each capacitance is no more than a Second Threshold, obtains multiple 3rd condenser types on the display screenThreeth capacitance profile of the sensor under one the 3rd driving voltage higher than first driving voltage.
Generally, when not existing conductor in the corresponding space of the first capacitance profile, the Electric Field Distribution in the space relatively connectsElectric Field Distribution in nearly free space, further, if also not existing conductor between the space and the display screen, does not depositIn the stop for detecting the Electric Field Distribution in the space, correspondingly, capacitance profile is than more uniform in first capacitance profile.Correspondingly, under this scene, for preferably detecting conductor, driving voltage can be improved, with display screen described in detection range moreRemote space.
Fig. 2 C are a kind of schematic diagram of the capacitance profile under this scene.As shown in Figure 2 C, the capacitance profile shown in upper figure compared withUniformly, accordingly, capacitance does not almost fluctuate in the coordinate diagram shown in figure below.
Wherein, which capacitance type sensor encouraged every time in the touch-screen can be pre-set, toolBody ground, the multiple first capacitance type sensor and the multiple 3rd capacitance type sensor can with identical, or, it is different.OrPerson, the capacitance profile for encouraging which capacitance type sensor on the display screen to may be referred to be obtained after last excitation every time is comeDetermine.
Alternatively, as shown in Figure 4 E, acquisition module 41 also includes：
Second sensor determining unit 415, for according to first capacitance profile and the multiple first condenser typeDistribution of the sensor on the display screen, determines the multiple 3rd capacitance type sensor.
Specifically, distribution of the multiple first capacitance type sensor on the display screen is largely fixed,The corresponding space of first capacitance profile projects the scope of plane where the display screen.For example, when first obtainsFirst capacitance profile that unit 411 is obtained reflects the electric field in the corresponding spatial dimension of right side area of the display screenWhen stronger, second sensor determining unit 415 is it is determined that can select more position during the multiple three capacitance type sensorIn the capacitance type sensor of right side area on the display screen, then passed with the multiple 3rd condenser type of the 3rd activation voltageSensor, so that the 3rd acquiring unit 414 can be obtained preferably reflects electric in the corresponding space of right side area on the display screen3rd capacitance profile of field distribution.
It should be noted that the multiple 3rd capacitance type sensor that second sensor determining unit 415 determines mayIt is identical with the multiple first capacitance type sensor, or, it is different.
In the present embodiment, the distribution of at least one conductor includes but is not limited to following at least one：Described at least oneThe number of individual conductor, the relative bearing between at least one conductor, the phase of at least one conductor and the display screenTo orientation.
The relative bearing of the relative bearing between number, conductor specifically, for conductor, conductor and the display screen,Distribution determining module 42 has the mode of various determinations.
The electric field of its surrounding air is typically much stronger than due to the electric field of conductor, therefore, reflect the electric field in the affiliated space of the conductorCan correspondingly occur the corresponding pinnacle electric capacity crest of the conductor in the capacitance profile of distribution.It should be noted that ought be at leastWhen between two conductors closely, the gap between at least two conductor is very small even very close to each other, such as twoBy together, at least two conductor may only be presented as a pinnacle to beholder in the corresponding capacitance profile in affiliated spaceElectric capacity crest.Based on this, distribution determining module 42 it is determined that conductor distribution when may by distance closely at least twoIndividual conductor is considered as a conductor.
For the number of conductor, alternatively, as illustrated in figure 4f, distribution determining module 42 includes：
First determining unit 421, in response under one the 4th driving voltage at least two driving voltageThere is at least one pinnacle electric capacity crest in 4th capacitance profile, it is determined that in the corresponding space of the 4th capacitance profileThe number of conductor is the number of at least one pinnacle electric capacity crest.
Fig. 2 D~2G is respectively a kind of schematic diagram of the capacitance profile under possible scene in the present embodiment.Such as Fig. 2 D institutesShow there is a pinnacle electric capacity crest in the coordinate diagram shown in figure below, based on this, the first determining unit 421 can determine the electricityThere is a humanoid conductor as shown above in space corresponding to appearance distribution.As shown in Figure 2 E, the coordinate diagram shown in figure belowMiddle to there are two pinnacle electric capacity crests, based on this, the first determining unit 421 can determine the space corresponding to the capacitance profileIt is middle to there is two humanoid conductors as shown above.As shown in Figure 2 F, there are three pinnacle electric capacity in the coordinate diagram shown in figure belowCrest, has three based on this, in the space that the first determining unit 421 can determine corresponding to the capacitance profile as shown aboveHumanoid conductor.As shown in Figure 2 G, there are three pinnacle electric capacity crests in the coordinate diagram shown in figure below, based on this, first determinesThere is three humanoid conductors as shown above in the space that unit 421 can determine corresponding to the capacitance profile.
Alternatively, it is any in all capacitance profiles for being obtained for acquisition module 41 to there is at least one pinnacle electric capacity crestCapacitance profile, the first determining unit 421 can determine the number of the conductor in the corresponding space of the capacitance profile.FurtherGround, the first determining unit 421 can also determine the conductor in front of the display screen according to the number sum of the conductor in each spaceTotal number.
For conductor and the relative bearing of display screen, alternatively, as shown in Figure 4 G, distribution determining module 42 includes：
Second determining unit 422, in response under one the 5th driving voltage at least two driving voltageThere is at least one pinnacle electric capacity crest in 5th capacitance profile, passed according to the multiple condenser types for obtaining the 5th capacitance profileDistribution of distribution, at least one pinnacle electric capacity crest of the sensor on the display screen in the 5th capacitance profile,The magnitude of voltage of the 5th driving voltage, it is determined that at least one conductor in the corresponding space of the 5th capacitance profile withThe relative bearing of the display screen.
Specifically, the second determining unit 422 is according to obtaining multiple capacitance type sensors of the 5th capacitance profile in instituteState distribution, the magnitude of voltage of the 5th driving voltage on display screen, it may be determined that the corresponding space of the 5th capacitance profileWith the relative bearing of the display screen, further with reference at least one pinnacle electric capacity crest in the 5th capacitance profileIn distribution, the second determining unit 422 can obtain at least one conductor in the corresponding space of the 5th capacitance profileWith the relative bearing of the display screen.
By taking the scene shown in Fig. 2 D as an example, a pinnacle electric capacity crest can be seen that by upper figure and figure below and be located at electric capacityThe centre of distribution, if the corresponding space of the capacitance profile is the space immediately ahead of display screen, the second determining unit 422Can determine that the corresponding conductor of pinnacle electric capacity crest is located at the front of the display screen, if the corresponding space of the capacitance profileWhen being positioned at a space of display screen left front, the second determining unit 422 can determine the corresponding conductor of pinnacle electric capacity crestPositioned at the left front of the display screen.
By taking the scene shown in Fig. 2 E as an example, two pinnacle electric capacity crests can be seen that by upper figure and figure below and be located at respectivelyThe left side and right side of capacitance profile, pinnacle electric capacity crest A is designated as by the pinnacle electric capacity crest for being located at left side, will be located at the point on right sideTop capacity crest is designated as pinnacle electric capacity crest B, if the corresponding space of the capacitance profile is the space immediately ahead of display screenWhen, the second determining unit 422 can determine that electric capacity crest A corresponding conductors in pinnacle are located at the left front of the display screen, pinnacleThe corresponding conductors of electric capacity crest B are located at the right front of the display screen.
Alternatively, it is any in all capacitance profiles for being obtained for acquisition module 41 to there is at least one pinnacle electric capacity crestCapacitance profile, the second determining unit 422 can determine at least one conductor and institute in the corresponding space of the capacitance profileState the relative bearing of display screen.
For the relative bearing between conductor, alternatively, as shown at figure 4h, distribution determining module 42 includes：
3rd determining unit 423, under in response to one the 6th driving voltage at least two driving voltageThere is multiple pinnacles electric capacity crest in six capacitance profiles, according to phase of multiple pinnacle electric capacity crests in the 6th capacitance profileTo orientation, it is determined that the relative bearing between multiple conductors in the corresponding space of the 6th capacitance profile.
Specifically, when a conductor is distributed with a space, because the electric field of the conductor is typically much stronger than its surrounding airElectric field, therefore, reflect the space Electric Field Distribution capacitance profile in can correspondingly go out at position corresponding with the conductorAn existing pinnacle electric capacity crest.
By taking the scene shown in Fig. 2 F as an example, three pinnacle electric capacity crests can be seen that in electric capacity point by upper figure and figure belowFrom left to right it is arranged in order in cloth, the pinnacle electric capacity crest for being located at left side is designated as pinnacle electric capacity crest A, the point on right side will be located atTop capacity crest is designated as pinnacle electric capacity crest B, the pinnacle electric capacity crest for being located at middle is designated as into pinnacle electric capacity crest C, according to electricityHold electric capacity crest C in pinnacle in distribution to be located in the middle of pinnacle electric capacity crest A and pinnacle electric capacity crest B, the 3rd determining unit 423 canTo determine in the corresponding space of the capacitance profile, it is corresponding that electric capacity crest C corresponding conductors in pinnacle are located at pinnacle electric capacity crest AIn the middle of conductor and the corresponding conductors of pinnacle electric capacity crest B.
By taking the scene shown in Fig. 2 G as an example, three pinnacle electric capacity crests can be seen that in electric capacity point by upper figure and figure belowFrom left to right it is arranged in order in cloth, the pinnacle electric capacity crest for being located at left side is designated as pinnacle electric capacity crest A, the point on right side will be located atTop capacity crest is designated as pinnacle electric capacity crest B, will be located at middle pinnacle electric capacity crest and be designated as pinnacle electric capacity crest C；According to electricityHold electric capacity crest C in pinnacle in distribution to be located in the middle of pinnacle electric capacity crest A and pinnacle electric capacity crest B, the 3rd determining unit 423 can be withIt is determined that in the corresponding space of the capacitance profile, electric capacity crest C corresponding conductors in pinnacle are located at that pinnacle electric capacity crest A is corresponding to be ledIn the middle of body and the corresponding conductors of pinnacle electric capacity crest B；Capacitance according to pinnacle electric capacity crest C is higher than pinnacle electric capacity crest AWith pinnacle electric capacity crest B, the 3rd determining unit 423 can determine with the display screen that as reference electric capacity crest C is corresponding on pinnacleConductor is located at the front of the corresponding conductors of pinnacle electric capacity crest A and the corresponding conductors of pinnacle electric capacity crest B, i.e. pinnacle electric capacity rippleThe corresponding conductors of peak C conductor more corresponding than pinnacle electric capacity crest A and the corresponding conductors of pinnacle electric capacity crest B are closer to the displayScreen.
Alternatively, any electricity that there is multiple pinnacles electric capacity crest in all capacitance profiles for being obtained for acquisition module 41Hold distribution, the 3rd determining unit 423 can determine the contra between the multiple conductors in the corresponding space of the capacitance profilePosition.
For the relative bearing between conductor, alternatively, as shown in fig. 41, distribution determining module 42 includes：
4th determining unit 424, in response under one the 7th driving voltage at least two driving voltageThere is at least one pinnacle electric capacity crest in the 8th capacitance profile under 7th capacitance profile and one the 8th driving voltage, according toObtain distribution of the multiple capacitance type sensors of the 7th capacitance profile on the display screen, obtain the 8th electric capacity pointDistribution of the multiple capacitance type sensors of cloth on the display screen, the magnitude of voltage of the 7th driving voltage, the described 8th swashThe magnitude of voltage of voltage is encouraged, at least one conductor and the 8th electric capacity in the corresponding space of the 7th capacitance profile is determinedIt is distributed the relative bearing between at least one conductor in a corresponding space.
Specifically, according to obtain multiple capacitance type sensors of the 7th capacitance profile on the display screen pointThe magnitude of voltage of cloth, the 7th driving voltage, the 4th determining unit 424 can determine the corresponding space of the 7th capacitance profileWith the relative bearing of the display screen；According to obtaining multiple capacitance type sensors of the 8th capacitance profile in the display screenOn distribution, the magnitude of voltage of the 8th driving voltage, the 4th determining unit 424 can determine the 8th capacitance profile correspondenceSpace and the display screen relative bearing；Based on above-mentioned two relative bearing, the 4th determining unit 424 can determine describedThe relative bearing in the corresponding space of the 7th capacitance profile space corresponding with the 8th capacitance profile, and the phase between each spaceThe relative bearing that can generally reflect between each space inner wire to orientation.
For example, if the 7th capacitance profile it is corresponding be spatially located at display screen front, and with the display screen away fromFrom in the range of 50 centimetres~100 centimetres, the corresponding space of the 8th capacitance profile also is located at immediately ahead of the display screen, and withThe distance of the display screen in the range of 150 centimetres~200 centimetres, then when the corresponding space of the 7th capacitance profile, the 8th electricityWhen the corresponding space of appearance distribution has conductor, the 4th determining unit 424 can be determined with the display screen as reference, the 7th electricityHold the front of conductor of the conductor in the corresponding space of distribution in the corresponding space of the 8th capacitance profile, i.e. the 7th electric capacity pointThe conductor in conductor space more corresponding than the 8th capacitance profile in the corresponding space of cloth is closer to display screen.
Alternatively, in all capacitance profiles for being obtained for acquisition module 41 there is at least one pinnacle electricity in any twoHold the capacitance profile of crest, the 4th determining unit 424 can determine that two capacitance profiles distinguish corresponding space inner wireBetween relative bearing.
In the present embodiment, at least one conductor that determining module 42 determines is distributed with multiple use.
In a kind of optional implementation, as shown in fig. 4j, device 400 also includes：
Display setup module 43, the distribution of at least one conductor for being determined according to distribution determining module 42, ifPut the display content and/or display parameters of the display screen.
Generally, the conductor in front of display screen for beholder possibility it is larger, therefore, it can by the display screen frontAt least one conductor be accordingly to be regarded as beholder, correspondingly, the distribution of at least one conductor is at least one beholderDistribution, thus show setup module 43 can according to display screen front at least one beholder distribution set display content and/Or display parameters.
Wherein, the display parameters can include but is not limited to 3D display parameters.Alternatively, the 3D display parameters includeBut it is not limited to following at least one：Optimal viewing areas, display brightness, display resolution that bore hole 3D shows etc..
In another optional implementation, device 400 also includes：Environment determination module, for determining mould according to distributionThe distribution of at least one conductor that block 42 determines, determines the display screen local environment.
For example, when having many conductors in a range of space in display screen front, the environment determines mouldBlock can determine that the display screen local environment is a public place；Only have when in a range of space in display screen frontDuring one or two conductor, the environment determination module can determine that the display screen local environment is a private site.
Alternatively, the display screen local environment that the environment determination module determines can provide branch for some applicationsHold, than such as whether showing the content of more secret in the display screen.
In another optional implementation, device 400 also includes：Towards control module, for determining mould according to distributionThe distribution of at least one conductor that block 42 determines rotates the direction of the display screen, such as, the display screen is turned to and is dividedIt is furnished with the space of more conductor.
A kind of structural representation of distribution determining device embodiment two that Fig. 5 is provided for the application.As shown in figure 5, distributionDetermining device 500 includes：
Processor (processor) 51, communication interface (Communications Interface) 52, memory(memory) 53 and communication bus 54.Wherein：
Processor 51, communication interface 52 and memory 53 complete mutual communication by communication bus 54.
Communication interface 52, for the communication with external equipment.
Processor 51, for configuration processor 532, can specifically perform the correlation step in above method embodiment.
Specifically, program 532 can include program code, and described program code includes computer-managed instruction.
Processor 51 is probably a central processor CPU, or specific integrated circuit ASIC (ApplicationSpecific Integrated Circuit), or be arranged to implement above method embodiment one or more are integratedCircuit.
Memory 53, for depositing program 532.Memory 53 may include high-speed RAM memory, it is also possible to also including non-Volatile memory (non-volatile memory), for example, at least one magnetic disk storage.Program 532 specifically can be used forSo that distribution determining device 500 performs following steps：
Obtain capacitance profile of multiple capacitance type sensors under at least two driving voltages on a display screen；
According at least to the capacitance profile under at least two driving voltage, determine that the display screen front at least one is ledThe distribution of body.
Alternatively, distribution determining device 500 also includes the display screen.
Each step implements that the corresponding steps that may refer in above method embodiment are corresponding to retouch in program 532State, will not be described here.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described hereinUnit and method and step, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actuallyPerformed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnelDescribed function, but this realization can be realized it is not considered that exceeding using distinct methods to each specific applicationThe scope of the present invention.
If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be withStorage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other wordsThe part contributed to original technology or the part of the technical scheme can be embodied in the form of software product, the meterCalculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment (can be individualPeople's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are depositedReservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, about the common of technical fieldTechnical staff, without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore allEquivalent technical scheme falls within scope of the invention, and scope of patent protection of the invention should be defined by the claims.