CN104657020B - The touch localization method and system of projecting type capacitor and surface capacitance comprehensive screen - Google Patents
The touch localization method and system of projecting type capacitor and surface capacitance comprehensive screen Download PDFInfo
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- CN104657020B CN104657020B CN201510087204.8A CN201510087204A CN104657020B CN 104657020 B CN104657020 B CN 104657020B CN 201510087204 A CN201510087204 A CN 201510087204A CN 104657020 B CN104657020 B CN 104657020B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a kind of projecting type capacitor and the touch localization method and system of surface capacitance comprehensive screen, method to include:After detecting that user sends touch operation, obtain current touch operation multiple electrode numbers triggered in single electrode that be arranged in parallel in touch-screen, and according to corresponding to the electrode number and the Y-axis location algorithm pre-set obtain current touch operation touch point longitudinal coordinate;When touch-screen electric field balances, the arrival current and transmitting terminal electric current of current touch operation institute trigger electrode are obtained, and according to the lateral coordinates of the arrival current, transmitting terminal electric current and the X-axis location algorithm acquisition touch point pre-set;Touch point is positioned according to the longitudinal coordinate of the touch point and lateral coordinates.The present invention electrode number of trigger electrode, arrival current and transmitting terminal electric current by obtaining, realize the precise positioning to touch operation.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of projecting type capacitor and surface capacitance comprehensive screen
Touch localization method and system.
Background technology
With the prevalence of projecting type capacitor touch-control, there is increasing individual layer touch scheme, as illustrated in figs. 1A and ib,
The respectively schematic diagram of " T " font individual layer electric capacity and triangular single-layer electric capacity.But all individual layer touch schemes all do not depart from
, chemical etching and Chemical cleaning during working process then be present and caused secondary dirt in the reprocessing processing of conducting film
Dye.Moreover, can not still realize at present the conducting film of shaping is directly carried out secondary film coating after the touch point on touch-screen is carried out
Precise positioning.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of projecting type capacitor and surface capacitance are comprehensive
Close the touch localization method and system of screen, it is intended to solve not realizing in the prior art directly that the conducting film progress of shaping is secondary
The defects of precise positioning is carried out to the touch point on touch-screen after plated film.
Technical scheme is as follows:
A kind of touch localization method of projecting type capacitor and surface capacitance comprehensive screen, wherein, methods described includes following step
Suddenly:
A, after detecting that user sends touch operation, current touch operation multiple single electricity that be arranged in parallel in touch-screen are obtained
The electrode number triggered in extremely, and current touch behaviour is obtained according to the electrode number and the Y-axis location algorithm pre-set
The longitudinal coordinate of touch point corresponding to work;
B, when touch-screen electric field balances, the arrival current and transmitting terminal electricity of current touch operation institute trigger electrode are obtained
Stream, and according to horizontal the sitting of the arrival current, transmitting terminal electric current and the X-axis location algorithm acquisition touch point pre-set
Mark;
C, touch point is positioned according to the longitudinal coordinate of the touch point and lateral coordinates.
The touch localization method of the projecting type capacitor and surface capacitance comprehensive screen, wherein, the step A is specifically included:
A1, after detecting that user sends touch operation, obtain current touch operation multiple lists that be arranged in parallel in touch-screen
The electrode number triggered in electrode;
A2, the electrode number is multiplied by the single electrode pixel value pre-set and adds the sensing deviation pre-set
Value, obtain the longitudinal coordinate of touch point corresponding to current touch operation.
The touch localization method of the projecting type capacitor and surface capacitance comprehensive screen, wherein, the step B is specifically included:
B1, when touch-screen electric field balances, obtain the arrival current and transmitting terminal of current touch operation institute trigger electrode
Electric current;
B2, by the arrival current divided by arrival current and transmitting terminal electric current sum, obtain current touch operation institute
The lateral coordinates of corresponding touch point.
The touch localization method of the projecting type capacitor and surface capacitance comprehensive screen, wherein, also wrapped before the step A
Include:
S, pre-set for obtain touch point lateral coordinates X-axis location algorithm, for obtaining touch point longitudinal coordinate
Y-axis location algorithm and sensing deviation for compensating touch point longitudinal coordinate error.
A kind of touching and positioning system of projecting type capacitor and surface capacitance comprehensive screen, wherein, including:
Longitudinal coordinate acquisition module, after detecting that user sends touch operation, obtain current touch operation and touching
Multiple electrode numbers triggered in single electrode that be arranged in parallel in screen, and determined according to the electrode number and the Y-axis pre-set
Position algorithm obtains the longitudinal coordinate of touch point corresponding to current touch operation;
Lateral coordinates acquisition module, for when touch-screen electric field balances, obtaining current touch operation institute trigger electrode
Arrival current and transmitting terminal electric current, and according to the arrival current, transmitting terminal electric current and the X-axis location algorithm pre-set
Obtain the lateral coordinates of touch point;
Locating module, touch point is positioned for the longitudinal coordinate according to the touch point and lateral coordinates.
The touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen, wherein, the longitudinal coordinate obtains mould
Block specifically includes:
Electrode number acquiring unit, after detecting that user sends touch operation, obtain current touch operation and touching
Multiple electrode numbers triggered in single electrode that be arranged in parallel in screen;
Longitudinal coordinate positioning unit, for the electrode number to be multiplied by the single electrode pixel value pre-set and is added pre-
The sensing deviation first set, obtain the longitudinal coordinate of touch point corresponding to current touch operation.
The touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen, wherein, the lateral coordinates obtain mould
Block specifically includes:
Electric current acquisition module, for when touch-screen electric field balances, obtaining the reception of current touch operation institute trigger electrode
Hold electric current and transmitting terminal electric current;
Lateral coordinates positioning unit, for by the arrival current divided by arrival current and transmitting terminal electric current sum,
Obtain the lateral coordinates of touch point corresponding to current touch operation.
The touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen, wherein, in addition to:
Setup module, for pre-set for obtain touch point lateral coordinates X-axis location algorithm, for obtain touch
The Y-axis location algorithm of point longitudinal coordinate and the sensing deviation for compensating touch point longitudinal coordinate error.
The invention provides a kind of projecting type capacitor and the touch localization method and system of surface capacitance comprehensive screen, method bag
Include:After detecting that user sends touch operation, current touch operation multiple institutes in single electrode that be arranged in parallel in touch-screen are obtained
The electrode number of triggering, and it is right according to the electrode number and the Y-axis location algorithm pre-set acquisition current touch operation institute
Answer the longitudinal coordinate of touch point;When touch-screen electric field balances, the arrival current of current touch operation institute trigger electrode is obtained
And transmitting terminal electric current, and according to the arrival current, transmitting terminal electric current and the X-axis location algorithm acquisition touch point pre-set
Lateral coordinates;Touch point is positioned according to the longitudinal coordinate of the touch point and lateral coordinates.The present invention passes through acquisition
Electrode number, arrival current and the transmitting terminal electric current of institute's trigger electrode, realize the precise positioning to touch operation.
Brief description of the drawings
Fig. 1 a and Fig. 1 b are respectively the schematic diagram of " T " font individual layer electric capacity and triangular single-layer electric capacity.
Fig. 2 is the stream of the touch localization method preferred embodiment of projecting type capacitor of the present invention and surface capacitance comprehensive screen
Cheng Tu.
Fig. 3 is the projecting type capacitor of the present invention and the schematic diagram of surface capacitance comprehensive screen.
Corner current diagram when Fig. 4 is balanced again for electric field when surface capacitance screen is touched in the prior art.
Fig. 5 is the knot of the touching and positioning system preferred embodiment of projecting type capacitor of the present invention and surface capacitance comprehensive screen
Structure block diagram.
Embodiment
The present invention provides a kind of touch localization method and system of projecting type capacitor and surface capacitance comprehensive screen, to make this hair
Bright purpose, technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that herein
Described specific embodiment only to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 2, Fig. 2 is that the touch localization method of projecting type capacitor of the present invention and surface capacitance comprehensive screen is preferable
The flow chart of embodiment.As shown in Fig. 2 it comprises the following steps:
Step S100, after detecting that user sends touch operation, it is multiple parallel in touch-screen to obtain current touch operation
The electrode number triggered in single electrode is set, and is obtained and worked as according to the electrode number and the Y-axis location algorithm pre-set
The longitudinal coordinate of touch point corresponding to preceding touch operation.
It is that the touch longitudinal coordinate of a kind of projecting type capacitor and surface capacitance comprehensive screen is determined in embodiments of the invention
Position.Wherein, surface capacitance screen (SCT), its structure are ITO monolithic glass, and all its surfaces that is powered are in a uniform electric field, work as hand
When referring to touch, due to belonging to conductor, portion of electrical current can be absorbed and cause ITO surface fields to change, caught and calculated by controller
The position of touch.And projecting type capacitor screen(PCT), its structure has many kinds, such as G/G, G/F/F etc., technique and using equipment all
Difference, lower floor have a grid being made up of two coordinates of X and Y, when finger touches, touch-screen can absorb the faint electric current of finger and
Change its electric charge, then caught by controller and calculate the position of touch.Surface capacitance screen and projecting type capacitor screen come to user
Say that maximum difference is exactly:Surface capacitance screen only has single-point touch, and projecting type capacitor screen supports multi-point touch.Specifically, such as Fig. 3
It is shown, it is made up of in the projecting type capacitor and surface capacitance comprehensive screen of the invention multiple single electrodes be arrangeding in parallel, and often
One end of individual single electrode is connected as radiating circuit, one end connection receiving circuit.
Step S200, when touch-screen electric field balances, obtain current touch operation institute trigger electrode arrival current and
Transmitting terminal electric current, and touch point is obtained according to the arrival current, transmitting terminal electric current and the X-axis location algorithm that pre-sets
Lateral coordinates;
When detecting the touch operation of user on touch-screen, then the transmitting terminal electric current and receiving terminal of the single electrode being triggered
Electric current changes, and the present invention is exactly based on the arrival current and transmitting terminal electricity for obtaining current touch operation institute trigger electrode
Stream determines the lateral coordinates of touch point.
Further, the idiographic flow of the longitudinal coordinate of touch point is obtained in the step S100 to be included:
Step S101, after detecting that user sends touch operation, it is multiple parallel in touch-screen to obtain current touch operation
The electrode number triggered in single electrode is set.
Step S102, the electrode number is multiplied by the single electrode pixel value pre-set and add the sensing pre-set
Deviation, obtain the longitudinal coordinate of touch point corresponding to current touch operation.
In the present embodiment, each single electrode all pre-sets single electrode pixel value Pixel, and by repeatedly testing determination
The sensing deviation value P of single electrodeshelft, therefore current touch operation is multiple in touch-screen to be arranged in parallel in single electrode when obtaining
The electrode number C triggeredelectrodeAfterwards, according to Y=Pixel*Celectrode+PshelftDetermine that current touch operation is corresponding to touch
The longitudinal coordinate of point.Due to adding the sensing deviation value P of single electrode in Y-axis location algorithmshelft, improve longitudinal coordinate positioning
The degree of accuracy so that more accurate positioning.
Further, the idiographic flow of the lateral coordinates of touch point is obtained in the step S200 to be included:
Step S201, when touch-screen electric field balances, obtain current touch operation institute trigger electrode arrival current and
Transmitting terminal electric current.
Step S202, by the arrival current divided by arrival current and transmitting terminal electric current sum, current touch is obtained
The lateral coordinates of touch point corresponding to operation.
In the prior art, in the positioning of surface capacitance touch-screen as shown in Figure 4, electricity is all kept on four angles of touch-screen
During the balance of field, electric current 0.When there is finger touch, the electric current at each angle changes, and electric field occurs and distributes and balance again.
Now, the electric current at four angles is i01、i02、i03And i04, it can be seen from the location algorithm of surface capacitance touch-screen, current touch behaviour
The lateral coordinates of touch point corresponding to work are Pixel*((i01+i04-i02-i03)/(i01+i02+i03+i04)), longitudinal coordinate is
Pixel*((i04+i03-i01-i02)/(i01+i02+i03+i04)), wherein Pixel is single electrode pixel value.It is not right during due to positioning
Lateral coordinates and longitudinal coordinate compensate, and positioning result may be caused error to be present, have impact on to the precisely fixed of touch operation
Position.
In the present embodiment, when touch-screen electric field balances, due to can in the projecting type capacitor and surface capacitance comprehensive screen
A strip is reduced into, then without equally obtaining the electric current of corner in image surface capacitance plate, and need to only obtain the two of single electrode
Hold electric current.As the arrival current i for obtaining current touch operation institute trigger electrode1And transmitting terminal electric current i2Afterwards, then pass through
Pixel*(i1/(i1+i2))Determine the lateral coordinates of touch point corresponding to current touch operation.
Based on above method embodiment, the present invention also provides a kind of projecting type capacitor and the touch of surface capacitance comprehensive screen is determined
Position system, as shown in figure 5, it includes:
Longitudinal coordinate acquisition module 100, after detecting that user sends touch operation, obtain current touch operation and touching
Multiple electrode numbers triggered in single electrode that be arranged in parallel in screen are touched, and according to the electrode number and the Y-axis pre-set
Location algorithm obtains the longitudinal coordinate of touch point corresponding to current touch operation;As detailed above.
Lateral coordinates acquisition module 200, for when touch-screen electric field balances, obtaining current touch operation institute trigger electrode
Arrival current and transmitting terminal electric current, and positioned and calculated according to the arrival current, transmitting terminal electric current and the X-axis that pre-sets
Method obtains the lateral coordinates of touch point;As detailed above.
Locating module 300, touch point is positioned for the longitudinal coordinate according to the touch point and lateral coordinates;Tool
Body is as described above.
Further, in the touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen, the longitudinal direction is sat
Mark acquisition module 100 specifically includes:
Electrode number acquiring unit, after detecting that user sends touch operation, obtain current touch operation and touching
Multiple electrode numbers triggered in single electrode that be arranged in parallel in screen;As detailed above.
Longitudinal coordinate positioning unit, for the electrode number to be multiplied by the single electrode pixel value pre-set and is added pre-
The sensing deviation first set, obtain the longitudinal coordinate of touch point corresponding to current touch operation;As detailed above.
Further, it is described laterally to sit in the touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen
Mark acquisition module 200 specifically includes:
Electric current acquisition module, for when touch-screen electric field balances, obtaining the reception of current touch operation institute trigger electrode
Hold electric current and transmitting terminal electric current;As detailed above.
Lateral coordinates positioning unit, for by the arrival current divided by arrival current and transmitting terminal electric current sum,
Obtain the lateral coordinates of touch point corresponding to current touch operation;As detailed above.
Further, in the touching and positioning system of the projecting type capacitor and surface capacitance comprehensive screen, in addition to:
Setup module, for pre-set for obtain touch point lateral coordinates X-axis location algorithm, for obtain touch
The Y-axis location algorithm of point longitudinal coordinate and the sensing deviation for compensating touch point longitudinal coordinate error;As detailed above.
In summary, the invention provides the touch localization method of a kind of projecting type capacitor and surface capacitance comprehensive screen and it is
System, method include:After detecting that user sends touch operation, current touch operation multiple lists that be arranged in parallel in touch-screen are obtained
The electrode number triggered in electrode, and current touch is obtained according to the electrode number and the Y-axis location algorithm pre-set
The longitudinal coordinate of touch point corresponding to operation;When touch-screen electric field balances, connecing for current touch operation institute's trigger electrode is obtained
Receiving end electric current and transmitting terminal electric current, and obtained according to the arrival current, transmitting terminal electric current and the X-axis location algorithm that pre-sets
Take the lateral coordinates of touch point;Touch point is positioned according to the longitudinal coordinate of the touch point and lateral coordinates.The present invention
By obtaining, the electrode number of trigger electrode, arrival current and transmitting terminal electric current, realize the precise positioning to touch operation.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (6)
- A kind of 1. touch localization method of projecting type capacitor and surface capacitance comprehensive screen, it is characterised in that methods described include with Lower step:A, after detecting that user sends touch operation, obtain current touch and operate multiple in touch-screen be arranged in parallel in single electrode The electrode number triggered, and current touch operation institute is obtained according to the electrode number and the Y-axis location algorithm pre-set The longitudinal coordinate of corresponding touch point;B, when touch-screen electric field balances, the arrival current and transmitting terminal electric current of current touch operation institute trigger electrode are obtained, And according to the lateral coordinates of the arrival current, transmitting terminal electric current and the X-axis location algorithm acquisition touch point pre-set;C, touch point is positioned according to the longitudinal coordinate of the touch point and lateral coordinates;The step A is specifically included:A1, after detecting that user sends touch operation, obtain current touch operation multiple single electrodes that be arranged in parallel in touch-screen Middle triggered electrode number;A2, the electrode number is multiplied by the single electrode pixel value pre-set and adds the sensing deviation pre-set, obtained To the longitudinal coordinate of touch point corresponding to current touch operation;Single electrode pixel value is pre-set in the single electrode, and is determined by the sensing deviation of single electrode.
- 2. the touch localization method of projecting type capacitor and surface capacitance comprehensive screen according to claim 1, it is characterised in that institute Step B is stated to specifically include:B1, when touch-screen electric field balances, obtain the arrival current and transmitting terminal electric current of current touch operation institute trigger electrode;B2, by the arrival current divided by arrival current and transmitting terminal electric current sum, obtain corresponding to current touch operation The lateral coordinates of touch point.
- 3. the touch localization method of projecting type capacitor and surface capacitance comprehensive screen according to claim 2, it is characterised in that institute Also include before stating step A:S, pre-set for obtain touch point lateral coordinates X-axis location algorithm, the Y-axis for obtaining touch point longitudinal coordinate Location algorithm and the sensing deviation for compensating touch point longitudinal coordinate error.
- A kind of 4. touching and positioning system of projecting type capacitor and surface capacitance comprehensive screen, it is characterised in that including:Longitudinal coordinate acquisition module, after detecting that user sends touch operation, current touch operation is obtained in touch-screen Multiple electrode numbers triggered in single electrode that be arranged in parallel, and calculated according to the electrode number and the Y-axis pre-set positioning Method obtains the longitudinal coordinate of touch point corresponding to current touch operation;Lateral coordinates acquisition module, for when touch-screen electric field balances, obtaining the reception of current touch operation institute trigger electrode Electric current and transmitting terminal electric current are held, and according to the arrival current, transmitting terminal electric current and the X-axis location algorithm acquisition pre-set The lateral coordinates of touch point;Locating module, touch point is positioned for the longitudinal coordinate according to the touch point and lateral coordinates;The longitudinal coordinate acquisition module specifically includes:Electrode number acquiring unit, after detecting that user sends touch operation, current touch operation is obtained in touch-screen Multiple electrode numbers triggered in single electrode that be arranged in parallel;Longitudinal coordinate positioning unit, for the electrode number to be multiplied by the single electrode pixel value pre-set and is added advance The sensing deviation of setting, obtain the longitudinal coordinate of touch point corresponding to current touch operation;Single electrode pixel value is pre-set in the single electrode, and is determined by the sensing deviation of single electrode.
- 5. the touching and positioning system of projecting type capacitor and surface capacitance comprehensive screen according to claim 4, it is characterised in that institute Lateral coordinates acquisition module is stated to specifically include:Electric current acquisition module, for when touch-screen electric field balances, obtaining the receiving terminal electricity of current touch operation institute trigger electrode Stream and transmitting terminal electric current;Lateral coordinates positioning unit, for by the arrival current divided by arrival current and transmitting terminal electric current sum, obtaining The lateral coordinates of touch point corresponding to current touch operation.
- 6. the touching and positioning system of projecting type capacitor and surface capacitance comprehensive screen according to claim 5, it is characterised in that also Including:Setup module, for pre-set for obtain touch point lateral coordinates X-axis location algorithm, indulge for obtaining touch point Y-axis location algorithm to coordinate and the sensing deviation for compensating touch point longitudinal coordinate error.
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CN101122838A (en) * | 2006-08-13 | 2008-02-13 | 陈其良 | Active touch control panel display |
CN101201714A (en) * | 2006-12-11 | 2008-06-18 | 义隆电子股份有限公司 | Touch pad and position sensing method for the same |
CN103250350A (en) * | 2010-11-30 | 2013-08-14 | 瑟克公司 | Linear projected single-layer capacitance sensor |
CN104111760A (en) * | 2013-04-22 | 2014-10-22 | 深圳富泰宏精密工业有限公司 | Dual-mode touch input device and touch panel |
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CN2927175Y (en) * | 2006-02-13 | 2007-07-25 | 陈其良 | Lattice touch-controlled screen |
CN101122838A (en) * | 2006-08-13 | 2008-02-13 | 陈其良 | Active touch control panel display |
CN101201714A (en) * | 2006-12-11 | 2008-06-18 | 义隆电子股份有限公司 | Touch pad and position sensing method for the same |
CN103250350A (en) * | 2010-11-30 | 2013-08-14 | 瑟克公司 | Linear projected single-layer capacitance sensor |
CN104111760A (en) * | 2013-04-22 | 2014-10-22 | 深圳富泰宏精密工业有限公司 | Dual-mode touch input device and touch panel |
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