CN103914180B - A kind of touch screen and position method and the driving means of touch point in this touch screen - Google Patents
A kind of touch screen and position method and the driving means of touch point in this touch screen Download PDFInfo
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- CN103914180B CN103914180B CN201310749729.4A CN201310749729A CN103914180B CN 103914180 B CN103914180 B CN 103914180B CN 201310749729 A CN201310749729 A CN 201310749729A CN 103914180 B CN103914180 B CN 103914180B
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Abstract
The invention discloses a kind of touch screen and in this touch screen, position method and the driving means of touch point, main contents include: by simultaneously for first direction touch control electrode load driver signal, gather the induced signal of second direction touch control electrode output simultaneously, determine the satisfied first at least one second direction touch control electrode touching condition；Then, it is followed successively by least one second direction touch control electrode load driver signal determined, and when for every second direction touch control electrode load driver signal, gather the induced signal of first direction touch control electrode output, determine the satisfied second first direction touch control electrode touching condition, and orientate, by the crossover location of the first direction touch control electrode determined and the second direction touch control electrode of load driver signal, the position that touch point occurs as respectively.Thus, improve the accuracy of location, touch point, meanwhile, save the time of load driver, decrease data processing amount, improve the speed of touch point, location.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of touch screen and location touch in this touch screen
The method of point and driving means.
Background technology
General touch display screen uses multilamellar indium tin oxide (Indium Tin Oxides, ITO) as sense
Survey electrode, formed with horizontal holding wire (X-axis), the arrangement side of longitudinal signal line (Y-axis) cross-distribution
Formula, the electric capacity at each crossover location forms capacitance matrix.During signal scanning, make with horizontal holding wire
For drive signal line, the driving means (IC) of touch screen it is followed successively by each horizontal holding wire load driver signal
(described driving signal can be driving voltage), when load driver signal on a certain horizontal holding wire, respectively
Longitudinal signal line detects self horizontal holding wire with load driver signal respectively as induced signal line and intersects
The capacitance of position electric capacity, and the capacitance detected is transferred to described driving means, then filled by driving
Put and the capacitance received is compared with the electric capacity reference value prestored, obtain each bar longitudinal signal line and add
Carry and drive the variable quantity of capacitance at the horizontal holding wire crossover location of signal.If a certain longitudinal signal line with
At the horizontal holding wire crossover location of load driver signal, the variable quantity of capacitance is more than threshold value, then this is longitudinally believed
It it is the position that occurs, touch point at number line and the horizontal holding wire crossover location of load driver signal.
Such as: as shown in Figure 1, it is assumed that touch point is A, B, C touch point in Fig. 1.Driving means
(the first frame is that TX1 loading is driven to be followed successively by each drive signal line TX1, TX2, TX3 load driver signal
Dynamic signal, the second frame is TX2 load driver signal, and the 3rd frame is TX3 load driver signal).
When the first frame (being now TX1 load driver signal, other drive signal line does not load), respectively
Induced signal line RX1, RX2, RX3 detect the capacitance at self and TX1 crossover location simultaneously, and
It is transferred to driving means.Driving means utilizes the capacitance received to compare with electric capacity reference value, determines
Capacitance change between capacitance and the electric capacity reference value of RX1 and RX3 transmission is more than threshold value, the most permissible
Determine that the position that touch point occurs lays respectively at: the crossover location A point of TX1 Yu RX1, TX1 and RX3
Crossover location B point.
When the second frame (being now TX2 load driver signal, other drive signal line does not load), with
The processing procedure of the first frame is similar to, and induced signal line RX1, RX2, RX3 detect self and TX2 simultaneously
Capacitance at crossover location, and it is transferred to driving means.Driving means utilizes the capacitance and electricity received
Hold reference value to compare, determine the capacitance change between the capacitance received and electric capacity reference value the most not
More than threshold value (capacitance the most now received is with electric capacity reference value closely), then may determine that
TX2 with RX1, RX2, RX3 crossover location at do not touch.
During three frames (being now TX3 load driver signal, other drive signal line does not load), with
The processing procedure of one frame and the second frame is similar to, it may be determined that the position that touch point occurs is positioned at: TX3 and RX1
Crossover location C point.
By the description of location, above touch point mode, driving means needs to depend on for each drive signal line
Secondary load driver signal, in order to the drive signal line of the detection of induced signal line and current load driver signal is handed over
The capacitance of fork position, and then determined induced signal line by driving means according to the situation of change of capacitance
Whether touch is there occurs, with drive signal line as X with the drive signal line infall of current load driver signal
Bar, induced signal line are the citing of Y bar, position mode according to above-mentioned touch point, and driving means needs to carry out
The detection of X*Y time calculates operation, owing to data processing amount is very big, reduces and positions in touching display screen
The locating speed of touch point.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of touch screen and positions the side of touch point in this touch screen
Method and driving means, during in order to solve to position touch point present in prior art, data processing amount is big and cause
The slow problem of locating speed.
The embodiment of the present invention is by the following technical solutions:
A kind of method positioning touch point in touch screen, described method includes:
For each bar first direction touch control electrode load driver signal simultaneously；
Gather the induced signal of each bar second direction touch control electrode simultaneously, determine that at least one meets the first touch
The second direction touch control electrode of condition；
It is followed successively by the described second direction touch control electrode load driver signal meeting the first touch condition；
When meeting the second direction touch control electrode load driver signal of the first touch condition for every, the most simultaneously
Gather the induced signal of each bar first direction touch control electrode, determine that at least one meets the of the second touch condition
One direction touch control electrode；
The described second direction touch control electrode meeting the first touch condition and described satisfied second touch condition
Orientate as at first direction touch control electrode crossover location and touch the position occurred.
Having the beneficial effect that of the embodiment of the present invention:
A kind of touch screen provided by the embodiment of the present invention and the method positioning touch point in this touch screen
And driving means, for first direction touch control electrode load driver signal simultaneously, gather second direction touch-control simultaneously
The induced signal of electrode output, determines the satisfied first at least one second direction touch control electrode touching condition；
Then, it is followed successively by least one second direction touch control electrode load driver signal determined, and for every
During two direction touch control electrode load driver signals, gather the induced signal of first direction touch control electrode output, really
Surely the first direction touch control electrode of the second touch condition, and the first direction touch control electrode that will determine respectively are met
With the position orientating touch point generation at the crossover location of the second direction touch control electrode of load driver signal as.
Thus, improve accuracy and the speed of location, touch point, meanwhile, save the time of load driver, subtract
Lack data processing amount.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to briefly introduce, it should be apparent that, the accompanying drawing in describing below is only the present invention's
Some embodiments, from the point of view of those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Touch screen ITO two-layer wiring sketch when Fig. 1 is that in prior art, touch point occurs；
A kind of method step flow process positioning touch point in touch screen that Fig. 2 provides for the embodiment of the present invention one
Figure；
Touch screen ITO two-layer wiring sketch when Fig. 3 is that in the embodiment of the present invention two, one-touch point occurs；
Touch screen ITO two-layer wiring sketch when Fig. 4 is that in the embodiment of the present invention three, multiple touch points occurs；
When Fig. 5 (a), Fig. 5 (b) are that in the embodiment of the present invention three, touch point, location is the driving detection loaded
Sequence figure；
The structural representation of the driving means that Fig. 6 provides for the embodiment of the present invention four.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this
Bright it is described in further detail, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under creative work premise, broadly fall into the scope of protection of the invention.
It should be noted that in existing touch screen display structure, the scan line generally laterally arranged adds
Carry and drive signal, and longitudinally disposed scan line output induced signal, therefore, can be by the scanning of horizontally set
Line is referred to as drive signal line, and custom is designated as TX, longitudinally disposed scan line is referred to as induced signal line, practises
It is used to be designated as RX.And in embodiments of the present invention, scan line and the longitudinally disposed scan line of horizontally set can
With multiplexing, it may be assumed that be horizontal scan line load driver signal at the first frame, longitudinal scanning line output induced signal；
It is longitudinal scanning line load driver signal at the second frame, horizontal scan line output induced signal.
In embodiments of the present invention, by being first direction touch control electrode load driver signal simultaneously, adopt simultaneously
The induced signal of collection second direction touch control electrode output, determines that satisfied first touches at least one the second of condition
Direction touch control electrode；Then, it is followed successively by least one second direction touch control electrode load driver signal determined,
And when for every second direction touch control electrode load driver signal, gather the output of first direction touch control electrode
Induced signal, determines the satisfied second first direction touch control electrode touching condition, and first will determined respectively
Direction touch control electrode orientates touch as at the crossover location of the second direction touch control electrode of load driver signal
The position that point occurs.Compare and localization method of the prior art, improve the accuracy of location, touch point,
Meanwhile, save the time of load driver, decrease data processing amount.
Describe the present invention below by way of specific embodiment, but the invention is not limited in
Lower embodiment.
Embodiment one:
As in figure 2 it is shown, a kind of method positioning touch point in touch screen provided for the embodiment of the present invention one
Flow chart of steps, specifically includes following steps:
Step 101: for each bar first direction touch control electrode load driver signal simultaneously.
Preferably, in this step 101, the described driving simultaneously loaded for each bar first direction touch control electrode
The phase place of signal, amplitude are identical.
Step 102: simultaneously gather the induced signal of each bar second direction touch control electrode, determines that at least one is full
Foot first touches the second direction touch control electrode of condition.
Preferably, the described second direction touch control electrode meeting the first touch condition is that the second direction gathered is touched
The induced signal of control electrode and the difference of the first induced signal reference value are more than the second direction touch control electrode of threshold value.
The induced signal of output after driving due to a second direction touch control electrode touch control electrode in a first direction,
It it is not the sensing letter in this second direction touch control electrode and all first direction touch control electrode at crossover location
Number set, but the sensing at this second direction touch control electrode and a first direction touch control electrode crossover location
Induced signal at signal, and this crossover location is maximum intensity in the induced signal at all crossover locations
's.This be due to:
Occurring under situation about touching, when to each first direction touch control electrode load driver signal, second
Induced signal at each crossover location that direction touch control electrode will go to sense in self touch control electrode respectively
Size, if determining the induced signal of multiple different numerical value (near touch point, or multiple touch point) respectively,
Then select that conduct sensing output that the numerical value of this second direction touch control electrode wherein induced signal is maximum
As a result, in fact, namely will be closest to the induced signal of the position that touch point occurs as this second direction
Touch control electrode output result.
Do not occurring under situation about touching, when to each first direction touch control electrode load driver signal,
At each crossover location in second direction touch control electrode self touch control electrode of sensing, the size of induced signal is all
It is the same, therefore, as long as using this unique numerical value as this second direction touch control electrode sensing output result
?.
So, during the description that the present invention is follow-up, either second direction touch control electrode is as sensing letter
Number line or first direction touch control electrode are as induced signal line, and induced signal of its output is this sensing letter
That induced signal that signal intensity on number line is maximum.Wherein, all sensing letters arrived referred to above
Number can be electric capacity, it is also possible to be electric current, be specifically not construed as limiting, however it is necessary that and select unified parameter.By
In the electricity parameter such as electric capacity, electric current be very easy to by external influence, therefore, collect induced signal it
After, need to compare with default reference value, at induced signal with the difference of the reference value preset more than default
Threshold value in the case of, just may determine that touch occur.
Therefore, in this step 102, gather the induced signal of each bar second direction touch control electrode simultaneously, and
By poor to induced signal and the first induced signal reference value of each bar second direction touch control electrode, will obtain respectively
Difference compare with the threshold value preset, determine and meet difference more than the second direction touch-control of threshold value preset
Electrode.It should be noted that in the case of having touch to occur, this step 102 may determine that at least one
Bar second direction touch control electrode, is equivalent to determine the second direction coordinate of touch point.
Step 103: be followed successively by the described second direction touch control electrode load driver letter meeting the first touch condition
Number.
Preferably, in this step 103, described in be followed successively by every meet first touch condition second direction
What touch control electrode loaded drives the phase place of signal, amplitude identical.
Step 104: at the second direction touch control electrode load driver signal meeting the first touch condition for every
Time, gather the induced signal of each bar first direction touch control electrode the most simultaneously, determine at least one meet second touch
Touch the first direction touch control electrode of condition.
Preferably, the described first direction touch control electrode meeting the second touch condition is that the first direction gathered touches
The induced signal of control electrode and the difference of the second induced signal reference value are more than the first direction touch control electrode of threshold value.
It is similar to step 102, loads in the second direction touch control electrode meeting the first touch condition for every and drive
During dynamic signal, gather the induced signal of each bar first direction touch control electrode simultaneously, and each bar first direction is touched
Induced signal and the second induced signal reference value of control electrode are poor, respectively by the difference obtained and the threshold preset
Value compares, and determines the first direction touch control electrode meeting difference more than the threshold value preset.Need explanation
It is, in the case of having touch to occur, this step 104 to determine at least one first direction touch-control
Electrode, is equivalent to determine the first direction coordinate of touch point.
Step 105: the described second direction touch control electrode meeting the first touch condition is touched with described satisfied second
Touch to orientate as at the first direction touch control electrode crossover location of condition and touch the position occurred.
In above process, after determining the satisfied first second direction touch control electrode touching condition, can only
Determine and on this second direction touch control electrode, have touch to occur, but concrete touch position can not be determined
Put.And, however, it is determined that go out the second direction touch control electrode of more than two, when simultaneously for meeting the first touch bar
During the second direction touch control electrode load driver signal of part, gather the sensing letter of first direction touch control electrode simultaneously
Number, the most also can only determine and in some first direction touch control electrode, have touch to occur.If only one of which touch point,
Then can accurately determine touch location, but if there being two or more touch point, then may determine satisfied first
The second direction touch control electrode of touch condition and the institute meeting the second first direction touch control electrode touching condition
Have as touch point at crossover location, will result in touch erroneous judgement.Therefore, above-mentioned steps 103 is taked determining
The mode of the second direction touch control electrode load driver signal successively meeting the first touch condition gone out, determines full
Foot second touches the first direction touch control electrode of condition.
Therefore, in this step 105, i.e. directly the second direction touch-control of the first touch condition can will be met
Electrode orientates touch point generation with meeting as at the first direction touch control electrode crossover location of the second touch condition
Position.
Preferably, in embodiments of the present invention, first coordinate axes and second at first direction touch control electrode place
Second coordinate axes at direction touch control electrode place forms rectangular coordinate system.
Below by way of two specific embodiments, and combine Figure of description to be described in detail in touch screen
The method of touch point, location.
Embodiment two:
As it is shown on figure 3, touch screen ITO two-layer wiring when being that in the embodiment of the present invention two, one-touch point occurs
Sketch.Wherein, first direction touch control electrode is the touch control electrode of horizontal direction, represents with X, is respectively
X1、X2、X3；Second direction touch control electrode is the touch control electrode of vertical direction, represents with Y, is respectively
Y1、Y2、Y3；And constitute point 11～point 33 these 9 crossover location points.Time with a frame is each below
First direction touch control electrode and second direction touch control electrode conversion load driver signal.
If during as it is shown on figure 3, there is touch to occur, then the position that touch point occurs can be determined in the following manner
Put:
First, in the first frame, it is the first touch control electrode X1, X2, X3 load driver signal simultaneously, with
Time, gather induced signal y1, y2, y3 of the second touch control electrode Y1, Y2, Y3, wherein, y1, y2,
Y3 is respectively the second touch control electrode Y1, the induced signal of Y2, Y3 upper signal intensity maximum.If the first sense
Induction signal reference value is y, the most respectively by poor to y1, y2, y3 and y, by the difference that obtains respectively with default
Threshold value compare, determine that the difference of only y2 Yu y is more than the threshold value preset, then, it is possible to really
Surely the second direction touch control electrode meeting the first touch condition is the second direction that this induced signal of y2 is corresponding
Touch control electrode Y2.
Then, in the second frame, for the second direction touch control electrode Y2 load driver signal determined, simultaneously
Gather induced signal x1, x2, x3 of the first touch control electrode X1, X2, X3, if the second induced signal base
Quasi-value is x, the most respectively by poor to x1, x2, x3 and x, the difference obtained is entered with default threshold value respectively
Row compares, and determines that the difference of only x2 Yu x is more than default threshold value, then, it is possible to determine satisfied the
The two first direction touch control electrode touching condition are the first direction touch control electrode that this induced signal of x2 is corresponding
X2。
Finally, by fixed at the crossover location of second direction touch control electrode Y2 and first direction touch control electrode X2
The position that position occurs for touch point, i.e. 22 is touch point.
Embodiment three:
As shown in Figure 4, touch screen ITO two-layer wiring when occurring for multiple touch points in the embodiment of the present invention three
Sketch.Wherein, first direction touch control electrode is the touch control electrode of horizontal direction, represents with X, respectively
One touch control electrode X1, X2, X3, X4；Second direction touch control electrode is the touch control electrode of vertical direction, uses
Y represents, respectively Y1, Y2, Y3, Y4；And constitute point 11～point 44 these 16 crossover location points.
Below with the time of a frame be each first direction touch control electrode and second direction touch control electrode conversion load driver
Signal.
As shown in Figure 4, if having touch to occur, then the position that touch point occurs can be determined in the following manner
Put:
First, in the first frame, it is the first touch control electrode X1, X2, X3, X4 load driver letter simultaneously
Number, meanwhile, gather induced signal y1, y2, y3, y4 of the second touch control electrode Y1, Y2, Y3, Y4,
Wherein, y1, y2, y3, y4 are respectively the second touch control electrode Y1, Y2, Y3Y4 upper signal intensity maximum
Induced signal.If the first induced signal reference value is y, the most respectively by poor to y1, y2, y3, y4 and y,
The difference obtained is compared with default threshold value respectively, determines the difference of y2 Yu y and y4 Yu y
Difference is all higher than the threshold value preset, then, it is possible to determine the satisfied first second direction touch-control electricity touching condition
Extremely second direction touch control electrode Y2 and second direction touch control electrode Y4.
Then, in the second frame, it is followed successively by second direction touch control electrode Y2, the Y4 load driver letter determined
Number, and determine touch point respectively.Specifically:
The first step: can be first second direction touch control electrode Y2 load driver signal, gathers first simultaneously and touches
Induced signal x1, x2, x3, x4 of control electrode X1, X2, X3, X4.Owing to being now only second party
To touch control electrode Y2 load driver signal, then the induced signal collected from induced signal line can only be electricity
12,22, the induced signal at point 32, point 42 these four crossover locations.If the second induced signal benchmark
Value is for x, the most respectively by poor to x1, x2, x3, x4 and x, by the difference that obtains respectively with default threshold value
Compare, determine that the difference of x2 Yu x and the difference of x4 Yu x are all higher than the threshold value preset, then, just
May determine that the satisfied second first direction touch control electrode touching condition is first direction touch control electrode X2 and the
One direction touch control electrode X4.And by the friendship of first direction touch control electrode X2 Yu second direction touch control electrode Y2
The crossover location of the fork point 22 of position and first direction touch control electrode X4 and second direction touch control electrode Y2
The point 42 at place orientates the position that touch point occurs as.
Second step: be then second direction touch control electrode Y4 load driver signal, gather simultaneously X1, X2,
Induced signal x1, x2, x3, x4 of X3, X4.Add owing to being now only second direction touch control electrode Y4
Carry and drive signal, then the induced signal collected from induced signal line can only be electricity 14, point 24, point 34,
Induced signal at point 44 these four crossover locations.If the second induced signal reference value is x, the most respectively will
X1, x2, x3, x4 and x are poor, the difference obtained are compared with default threshold value respectively, determine
The difference of x2 Yu x is more than the threshold value preset, then, it is possible to determine the satisfied second first direction touching condition
Touch control electrode is first direction touch control electrode X2.And by first direction touch control electrode X2 and second direction touch-control
Point 24 at the crossover location of electrode Y4 orientates the position that touch point occurs as.
Thus, it is possible to determine, the position of touch point generation is point 22, puts 24 and point 42 these three intersection positions
Put.
Additionally, the induced signal of the driving signal loaded in the scheme of the embodiment of the present invention four and collection is permissible
It it is the sequential chart as shown in Fig. 5 (a) and 5 (b).Double-deck below in conjunction with the touch screen ITO shown in Fig. 4
Connect up sketch, and the scheme of embodiment four is described in detail.
In the first frame, it is the first touch control electrode X1, X2, X3, X4 load driver signal simultaneously, i.e.
The high level loaded in corresponding diagram 5 (a), meanwhile, the second touch control electrode Y1, Y2, Y3, Y4 output
Induced signal, after detection, determines that Y2 and Y4 meets the first touch condition；
In the second frame, it is followed successively by Y2 and Y4 load driver signal, loads high level the most respectively.Wherein,
While loading high level for Y2, the first touch control electrode X1, X2, X3, X4 export induced signal,
After detection, determine that X2 and X4 meets the second touch condition；High level is being loaded for Y4
Meanwhile, the first touch control electrode X1, X2, X3, X4 export induced signal, after passing through detection, really
Determine X4 and meet the second touch condition.
It should be noted that the first involved in embodiments of the present invention induced signal reference value and the second sense
Induction signal reference value can be set as identical numerical value ideally, i.e. when not occurring to touch, and the sense collected
The numerical value of induction signal；But, due to the impact of wiring in touch screen preparation process, can be by the first sensing letter
Number reference value is different numerical value from the second induced signal reference value.
The method positioning touch point in this touch screen provided based on above example of the present invention, the present invention is real
Execute example four and provide a kind of driving means, this driving means described in detail below.
As shown in Figure 6, for the structural representation of the driving means that the embodiment of the present invention four provides, specifically include
Following functions module:
Signal loading module 201, for for each bar first direction touch control electrode simultaneously load driver signal, with
And, when receiving the indication signal of described first locating module, it is followed successively by described satisfied first touch condition
Second direction touch control electrode load driver signal.
Preferably, described signal loading module 201 is the driving that each bar first direction touch control electrode loads simultaneously
The phase place of signal, amplitude are identical, and described signal loading module 201 is followed successively by every and meets the first touch condition
Second direction touch control electrode load drive the phase place of signal, amplitude identical.
Acquisition module 202, being used in described signal loading module 201 is that each bar first direction touch control electrode is same
Time load driver signal time, gather the induced signal of each bar second direction touch control electrode simultaneously, and, in institute
State signal loading module 201 be followed successively by every meet first touch condition second direction touch control electrode load drive
During dynamic signal, gather the induced signal of each bar first direction touch control electrode simultaneously.
First locating module 203, touches for each bar second direction collected according to described acquisition module 202
The induced signal of control electrode, after determining at least one second direction touch control electrode meeting the first touch condition,
Indication signal is sent to described signal loading module 201.
Preferably, the described second direction touch control electrode meeting the first touch condition is that the second direction gathered is touched
The induced signal of control electrode and the difference of the first induced signal reference value are more than the second direction touch control electrode of threshold value.
Second locating module 204, touches for each bar first direction collected according to described acquisition module 202
Control electrode induced signal, determine at least one first direction touch control electrode meeting the second touch condition,
The described second direction touch control electrode meeting the first touch condition is met the of the second touch condition with described
One direction touch control electrode crossing position is orientated as and is touched the position occurred.
Preferably, the described first direction touch control electrode meeting the second touch condition is that the first direction gathered touches
The induced signal of control electrode and the difference of the second induced signal reference value are more than the first direction touch control electrode of threshold value.
Embodiment five:
Present invention also offers a kind of touch screen, including a plurality of first direction touch control electrode, respectively with every institute
State first direction touch control electrode intersect a plurality of second direction touch control electrode and embodiment four in introduce driving
Device.
And, in this touch screen, it is possible to use the touch point localization method provided in the embodiment of the present invention,
In the case of having touch to occur, the touch point in described touch screen is positioned.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. the method positioning touch point in touch screen, it is characterised in that described method includes:
For each bar first direction touch control electrode load driver signal simultaneously；
Gather the induced signal of each bar second direction touch control electrode simultaneously, determine that at least one meets the first touch
The second direction touch control electrode of condition；
It is followed successively by the described second direction touch control electrode load driver signal meeting the first touch condition；
When meeting the second direction touch control electrode load driver signal of the first touch condition for every, the most simultaneously
Gather the induced signal of each bar first direction touch control electrode, determine that at least one meets the of the second touch condition
One direction touch control electrode；
The described second direction touch control electrode meeting the first touch condition and described satisfied second touch condition
Orientate as at first direction touch control electrode crossover location and touch the position occurred.
2. the method for claim 1, it is characterised in that described meet the of the first touch condition
Two direction touch control electrodes are induced signal and the first induced signal benchmark of the second direction touch control electrode gathered
The difference of value is more than the second direction touch control electrode of threshold value.
3. the method for claim 1, it is characterised in that described meet the of the second touch condition
One direction touch control electrode is induced signal and the second induced signal benchmark of the first direction touch control electrode gathered
The difference of value is more than the first direction touch control electrode of threshold value.
4. the method for claim 1, it is characterised in that described first direction touch control electrode place
Second coordinate axes at the first coordinate axes and described second direction touch control electrode place form rectangular coordinate system.
5. the method for claim 1, it is characterised in that described for each bar first direction touch-control electricity
What pole loaded simultaneously drives the phase place of signal, amplitude identical, described in be followed successively by every and meet the first touch condition
Second direction touch control electrode load drive the phase place of signal, amplitude identical.
6. a driving means, it is characterised in that include signal loading module, acquisition module, first fixed
Position module and the second locating module, wherein:
Signal loading module, for for each bar first direction touch control electrode simultaneously load driver signal, and,
When receiving the indication signal of described first locating module, it is followed successively by the second of described satisfied first touch condition
Direction touch control electrode load driver signal；
Acquisition module, for being that each bar first direction touch control electrode loads and drives in described signal loading module simultaneously
During dynamic signal, gather the induced signal of each bar second direction touch control electrode simultaneously, and, add at described signal
When carrying the second direction touch control electrode load driver signal that module is followed successively by every satisfied first touch condition, with
Time gather the induced signal of each bar first direction touch control electrode；
First locating module, for each bar second direction touch control electrode of collecting according to described acquisition module
Induced signal, after determining at least one second direction touch control electrode meeting the first touch condition, to described letter
Number load-on module sends indication signal；
Second locating module, for each bar first direction touch control electrode of collecting according to described acquisition module
Induced signal, determine at least one first direction touch control electrode meeting the second touch condition, by described full
Foot first touches the second direction touch control electrode of condition and touches with the described first direction meeting the second touch condition
Control electrode crossing position is orientated as and is touched the position occurred.
7. device as claimed in claim 6, it is characterised in that described meet the of the first touch condition
Two direction touch control electrodes are induced signal and the first induced signal benchmark of the second direction touch control electrode gathered
The difference of value is more than the second direction touch control electrode of threshold value.
8. device as claimed in claim 6, it is characterised in that described meet the of the second touch condition
One direction touch control electrode is induced signal and the second induced signal benchmark of the first direction touch control electrode gathered
The difference of value is more than the first direction touch control electrode of threshold value.
9. device as claimed in claim 6, it is characterised in that described signal loading module is each article the
What one direction touch control electrode loaded simultaneously drives the phase place of signal, amplitude identical, and described signal loading module depends on
The secondary driving phase place of signal, the amplitude loaded for every second direction touch control electrode meeting the first touch condition
Identical.
10. a touch screen, it is characterised in that include a plurality of first direction touch control electrode, respectively with every
Described first direction touch control electrode intersect a plurality of second direction touch control electrode and drive as claimed in claim 7
Dynamic device.
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| CN104699339A (en) * | 2015-03-18 | 2015-06-10 | 深圳市华星光电技术有限公司 | Touch signal scanning method |
| CN105760016B (en) * | 2016-02-05 | 2019-04-05 | 厦门天马微电子有限公司 | Touch panel and its driving method |
| CN109601015B (en) | 2017-07-31 | 2022-06-07 | 深圳市汇顶科技股份有限公司 | Touch screen reference determination method and device, touch screen and electronic terminal |
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|---|---|---|---|---|
| EP2336864A1 (en) * | 2008-07-21 | 2011-06-22 | Inferpoint Systems Limited | Touch-control flat panel display |
| CN102880338A (en) * | 2011-07-13 | 2013-01-16 | 矽统科技股份有限公司 | Touch panel device |
| CN103034358A (en) * | 2011-09-30 | 2013-04-10 | 赛普拉斯半导体公司 | Predictive touch surface scanning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2336864A1 (en) * | 2008-07-21 | 2011-06-22 | Inferpoint Systems Limited | Touch-control flat panel display |
| CN102880338A (en) * | 2011-07-13 | 2013-01-16 | 矽统科技股份有限公司 | Touch panel device |
| CN103034358A (en) * | 2011-09-30 | 2013-04-10 | 赛普拉斯半导体公司 | Predictive touch surface scanning |
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