CN105094490B - Touch display panel, touch display unit and its touch control method - Google Patents
Touch display panel, touch display unit and its touch control method Download PDFInfo
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- CN105094490B CN105094490B CN201510524499.0A CN201510524499A CN105094490B CN 105094490 B CN105094490 B CN 105094490B CN 201510524499 A CN201510524499 A CN 201510524499A CN 105094490 B CN105094490 B CN 105094490B
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Abstract
The embodiment of the present application discloses touch display panel, device and touch control method.The touch display panel includes: touch electrode, and touch electrode includes plurality of first electrodes and the plurality of second electrodes and control circuit；Wherein, multiple first electrodes arrange and mutually insulated with a matrix type, wherein each first electrode passes through first lead respectively is connected to control circuit；And multiple second electrodes are formed between first electrode and insulate with multiple first electrodes, mutually insulated between multiple second electrodes, each second electrode corresponds at least one first electrode, and each second electrode passes through the second lead respectively and is connected to control circuit.Touch display panel, device and touch control method provided by the present application can determine touch location from signal value and mutual tolerance signal value is held by detection, realize the purpose for reducing noise jamming.
Description
Technical field
This application involves touch-control fields, and in particular to touch-control display field more particularly to a kind of touch display panel include
The touch control method of the touch display unit of the touch display panel and the touch display unit.
Background technique
With the continuous development of mobile terminal technology, the display screen with touch function has been increasingly becoming all kinds of mobile whole
Hold the mainstream screen of configuration.Embedded touch structure can be usually used in display terminal, i.e., it is straight in the inside of display panel
Insertion touch function is connect, so that entire touch display screen curtain is more frivolous.
In the prior art, embedded touch structure can be generally divided into from two class of appearance type and mutual tolerance type.For from appearance type
Touch screen, finger, which contacts the external capacitive to be formed, will change the self-capacitance formed between electrode and ground；For mutual tolerance type touch screen,
Finger, which contacts the external capacitive to be formed, will change the mutual capacitance between two electrodes.It is being used alone from appearance or mutual tolerance type touch-control
When screen detection touch location, detection accuracy is highly susceptible to the interference of outside noise signal.For example, being touched when on Touch Screen
When water droplet, conductive aqueous vapor will increase the marginal electric field between adjacent touch electrode, and then increase capacitor, so as to cause touch
Screen is likely to water droplet being mistaken for touch operation.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is desired to be able to it is high to provide a kind of strong interference immunity, detection accuracy
Scheme.In order to realize said one or multiple purposes, the embodiment of the present application provides a kind of touch display panel, touches display
Device and its touch control method.
In a first aspect, the embodiment of the present application provides a kind of touch display panel, which includes: to touch electricity
Pole, the touch electrode include plurality of first electrodes and the plurality of second electrodes and control circuit；Wherein, the multiple first electricity
Pole arranges with a matrix type and mutually insulated, wherein each first electrode passes through first lead respectively is connected to the control electricity
Road；And the multiple second electrode is formed between the first electrode and insulate with the multiple first electrode, it is described more
Mutually insulated between a second electrode, each second electrode correspond at least one first electrode, and each second electrode is led to respectively
It crosses the second lead and is connected to the control circuit.
Second aspect, the embodiment of the present application provide a kind of touch display unit, which includes above-mentioned
Touch display panel provided by one side.
The third aspect, the embodiment of the present application provide a kind of touch control method of touch display unit, the touch display unit
Including touch display panel provided by above-mentioned first aspect, which includes: in the first detection cycle detection each the
One electrode holds signal value certainly；The second detection cycle for being different from first detection cycle detect each first electrode with it is right
Mutual tolerance signal value between the second electrode answered；And position is touched based on determining from appearance signal value and mutual tolerance signal value for detecting
It sets.
Touch display panel, touch display unit and its touch control method provided by the embodiments of the present application, can detecte first
Hold signal value certainly on electrode, also can detecte the mutual tolerance signal value between first electrode and corresponding second electrode, and pass through
Comprehensive descision is above-mentioned to hold signal value and mutual tolerance signal value certainly to determine touch location.By being integrated to from two signals of mutual tolerance
Analysis, can reduce interference of the outside noise to touch display panel, improve the accuracy of identification of its touch control operation.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of one embodiment of the application touch display panel；
Fig. 2 is the structural schematic diagram of another embodiment of the application touch display panel；
Fig. 3 is the structural schematic diagram of one embodiment of the application touch display unit；
Fig. 4 is the structural schematic diagram of another embodiment of the application touch display unit；
Fig. 5 is the flow chart of one embodiment of the touch control method of the application touch display unit；
Fig. 6 is the flow chart of another embodiment of the touch control method of the application touch display unit.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to related invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 1, it illustrates the structural schematic diagrams of one embodiment of the application touch display panel.
As shown in Figure 1, the touch display panel of the present embodiment includes: touch electrode 11 and control circuit 12.Touch electrode
11 include multiple first electrodes 111 and multiple second electrodes 112, wherein multiple first electrodes 111 arrange with a matrix type and
Mutually insulated, wherein each first electrode 111 is connected to control circuit 12 by first lead 13 respectively.Multiple second electrodes
112 are formed between first electrode 111 and insulate with multiple first electrodes, and also mutually exhausted between multiple second electrodes 112
Edge.Each second electrode 112 can correspond at least one first electrode 111, and each second electrode 112 can lead to respectively
It crosses the second lead 14 and is connected to control circuit 12.In the touch display panel of the present embodiment, touch electrode 11 is in the touch-control stage
It can be used for touch-control.Optionally, in the display stage, touch electrode 11 can be multiplexed with public electrode, for showing.Specifically
Ground, in the display stage, control circuit 12 can apply a constant voltage signal on touch (public) electrode 11, to drive liquid crystal
Molecule deflects under the collective effect of touch electrode 11 and pixel electrode (not shown), to realize display function.It is touching
Control stage, control circuit 12 can be configured as the appearance signal value certainly of each first electrode 111 of detection, and detect each first electricity
Mutual tolerance signal value between pole 111 and corresponding second electrode 112.
Specifically, when detecting when holding signal value certainly of each first electrode 111, control circuit 12 can be by drawing first
Apply voltage on line 13 as the charging of first electrode 111, and records the direct-to-ground capacitance value C1 of first electrode 111 after charging.Then will
Voltage disconnects, and at this time if finger comes close to or in contact with touch display panel, will lead to the capacitance C1 at finger touch position
It changes.Therefore, control circuit 12 detects the situation of change of capacitance C1 by first lead 13, so that it may determine finger
Position of touch.
When detecting the mutual tolerance signal value between each first electrode 111 and corresponding second electrode 112, control circuit 12
Pumping signal, such as pulse signal can successively be applied in every a line or each column first electrode 111 by first lead 13.
Meanwhile control circuit 12 can receive signal, first electrode available in this way from second electrode 112 by the second lead 14
Mutual tolerance signal between 111 and corresponding second electrode 112, also can be obtained by the two-dimensional surface in entire touch display panel
On capacitance size.When finger is close to touch display panel, it will lead to the localized capacitance amount at finger and reduce.According in plane
The change location of capacitance, so that it may obtain touch point coordinate, the i.e. position of touch of finger.
In an optional implementation of the present embodiment, each second electrode 112 can correspond to of the immediate right of that
Four first electrodes 111.The gross area of multiple second electrodes 112 is less than the gross area of multiple first electrodes 111, that is to say, that
The area summation of multiple second electrodes 112 is less than the area summation of multiple first electrodes 111.By the first electricity in this present embodiment
It is detected larger from the effective coverage for holding signal for detecting from appearance signal pole, it can be ensured that from the accuracy of appearance detection.?
In one optional implementation of the present embodiment, control circuit 12 is to above-mentioned from the detection for holding signal value and above-mentioned mutual tolerance signal value
Detection can be timesharing progress.That is, control circuit 12 can first detect the appearance signal certainly of each first electrode 111
Value, then detects the mutual tolerance signal value between each first electrode 111 and corresponding second electrode 112 again.Alternatively, control circuit
12 can first detect the mutual tolerance signal value between each first electrode 111 and corresponding second electrode 112, then detect again each
First electrode 111 holds signal value certainly.Also, it can be in an image scanning frame from the detection for holding signal value and mutual tolerance signal value
Interior completion can also be completed in two adjacent or neighbouring image scanning frames, and the application is without limitation, as long as from letter is held
The detection of number value and mutual tolerance signal value is carried out separately.
In the optional implementation of the present embodiment, control circuit 12 be configured to according to detect from
Hold signal value and determine one or more first electrodes 111 that self-capacitance is changed, and based on said one or multiple the
Each first electrode 111 corresponding appearance signal value and mutual tolerance signal value certainly in one electrode 111 determine touch location.In this implementation
In example, control circuit 12 can determine that self-capacitance changes first according to detecting from the situation of change for holding signal value
At least one first electrode 111.Since the self-capacitance of these electrodes is changed, the position where these electrodes,
It is likely to be the position that user occurs and touches.But since outside noise can also cause the variation of self-capacitance, it is possible to
The concrete reason for causing self-capacitance to change is further confirmed that.Specifically, control circuit 12 can be obtained further above-mentioned
The change of mutual tolerance signal value between the corresponding second electrode 112 of at least one changed first electrode 111 of self-capacitance
Change situation, and can be based on the corresponding relationship held between signal value and mutual tolerance signal value certainly, to determine that self-capacitance is changed
Position, actually or touch location noise position.For example, the variable quantity of mutual tolerance signal value is logical for same primary touch
It is often from the half for holding signal value variable quantity.If the mutual capacitance of some first electrode and the variation from capacitance meet above-mentioned rule,
It can then determine and be touched on this electrode.If the variable quantity of mutual capacitance is only from capacitance variable quantity in some first electrode
1/10th, then can determine and produce interference noise on this electrode.
In an optional implementation of the present embodiment, each second electrode 112 be can correspond on first direction
Multiple first electrodes 111, first direction are parallel to touch the direction of scanning direction.In the present embodiment, scanning direction is touched
It can be and refer to that control circuit 12 when carrying out mutual capacitance detection, applies the direction of pumping signal to multiple first electrodes 111 line by line.
In the embodiment shown in fig. 1, touching scanning direction can be vertical direction from the top down or from bottom to top.Therefore,
One direction can be the vertical direction in figure, and each second electrode 112 can correspond to a column first electrode 111, that is,
Four first electrodes 111 arranged on same longitudinal direction.
In an optional implementation of the present embodiment, each first electrode 111 is the electrode with same shape.It can
Selection of land, the shape of first electrode 111 can be rectangle, such as square or rectangular, be also possible to triangle etc., and each
The size and shape of first electrode 111 is all the same.Each second electrode 112 be along above-mentioned first direction, that is, it is perpendicular in Fig. 1
Histogram is to the strip shaped electric poles of extension, and each second electrode 112 is on the direction perpendicular to its length direction, that is, Fig. 1
In horizontal direction on extend multiple extending electrode portion 112A for separating first electrode 111.Optionally, each first electrode
111 can be with electrode of different shapes.For example, for non-rectangle display panel, if first at intermediate position
Electrode is square electrode, and the first electrode at its boundary position is likely to that above-mentioned square electrode is cropped to go a part
Triangle, quadrangle or the pentagonal electrode obtained afterwards.For this kind of display panel, in the touch signal for determining its boundary
When, need the area change for further considering first electrode to the influence from perhaps mutual tolerance signal.
Touch display panel provided in this embodiment, control circuit can detecte holds signal value in first electrode certainly,
It can detecte the mutual tolerance signal value between first electrode and corresponding second electrode, and above-mentioned from appearance signal value by comprehensive descision
Touch location is determined with mutual tolerance signal value.By carrying out comprehensive analysis to from two signals of mutual tolerance, outside noise can be reduced
Interference to touch display panel improves the accuracy of identification of its touch control operation.Also, the face of multiple second electrodes in the present embodiment
The long-pending area for being less than multiple first electrodes, that is to say, that detection is larger from the effective coverage for holding signal, and it is hereby ensured that hold certainly
The accuracy of detection.
With further reference to Fig. 2, it illustrates the structural schematic diagrams of another embodiment of the application touch display panel.
As shown in Fig. 2, the touch display panel of the present embodiment includes: for showing and the touch electrode 21 of touch-control and control
Circuit 22.Touch electrode 21 include multiple first electrodes 211 and multiple second electrodes 212, wherein multiple first electrodes 211 with
The form of matrix arranges and mutually insulated, wherein each first electrode 211 is connected to control circuit by first lead 23 respectively
22.Multiple second electrodes 212 are formed between first electrode 211 and insulate with multiple first electrodes, and multiple second electrodes
Also mutually insulated between 212.Each second electrode 212 can correspond to multiple first electrodes 211, and each second electrode
212 can be connected to control circuit 22 by the second lead 24 respectively.
In the present embodiment, each second electrode 212 can consist of three parts, i.e. the first strip shaped electric poles 212A, second
Strip shaped electric poles 212B, and the multiple third strips electricity being connected between the first strip shaped electric poles 212A and the second strip shaped electric poles 212B
Pole 212C.Wherein, the first strip shaped electric poles 212A and the second strip shaped electric poles 212B are parallel to each other, third strip shaped electric poles 212C and first
Strip shaped electric poles 212A is vertical, and multiple first electrodes 211 are kept apart.In this way, each second electrode 212 can surround its institute
Each corresponding first electrode 211.The area of multiple second electrodes 212 is less than the area of multiple first electrodes 211.
In the touch display panel of the present embodiment, touch electrode 21 can be equally used for display and touch-control.Specifically, exist
In the display stage, control circuit 22 can apply a constant voltage signal on touch electrode 21, to drive liquid crystal molecule touching
It deflects under the collective effect of electrode 21 and pixel electrode (not shown), to realize display function.In the touch-control stage, control
Circuit 22 can be configured as each first electrode 211 of detection from holding signal value, and detect each first electrode 211 with it is corresponding
Second electrode 212 between mutual tolerance signal value.Then according to the touching for determining finger jointly from appearance signal value and mutual tolerance signal value
Position is touched, the method and principle of detection are almost the same with embodiment illustrated in fig. 1, and details are not described herein.
From figure 2 it can be seen that the main distinction of the touch display panel in its provided touch display panel and Fig. 1
It is that the shape of second electrode is different.First electrode in Fig. 1 is surrounded by second electrode part, and the first electrode of the present embodiment
By entirely around among second electrode, therefore, the mutual tolerance area between first electrode and second electrode increases, can be further
Improve the detection accuracy to mutual tolerance signal.
Based on the touch display panel of above-mentioned offer, present invention also provides a kind of touch display units.With further reference to
Fig. 3, it illustrates the structural schematic diagrams of one embodiment of the application touch display unit.In the present embodiment, display is touched
Device may include touch display panel 31 and the counter substrate opposite disposed with it described in any of the above-described embodiment
32, a liquid crystal layer 33 is provided between touch display panel 31 and counter substrate 32.Counter substrate 32 may include first
Substrate 321 and color film layer 322, and color film layer 322 is set to first substrate 321 towards 33 side of liquid crystal layer.
With further reference to Fig. 4, it illustrates the schematic diagrames of another embodiment of the application touch display unit.In this reality
It applies in example, display device can be a tablet computer 41 comprising touch display surface described in any of the above-described embodiment
Plate 42.User can be used stylus 43 or finger and complete touch control operation on touch display panel 42.
With further reference to Fig. 5, it illustrates the processes of one embodiment of the touch control method of the application touch display unit
Figure.The touch control method can be applied on touch display unit described in any of the above-described embodiment, and this method specifically includes:
Firstly, in step 501, detecting the appearance signal value certainly of each first electrode in the first detection cycle.
Control circuit in touch display panel can detect each first by first lead in the first detection cycle
Electrode holds signal value certainly.Specifically, driving circuit can be first the first electricity by first lead in the first detection cycle
Pole charging, and record the direct-to-ground capacitance value of first electrode after charging.Then the voltage in first lead is disconnected, and passes through first
Lead detects the appearance signal value certainly of each first electrode, if the direct-to-ground capacitance value under the signal value and before charged state is not
Together, then it has been likely occurred user's touch.
In an optional implementation of the present embodiment, detect each first electrode includes: every from signal value is held
A first detection cycle, the capacitance variations that detects the capacitance variations of the self-capacitance of each first electrode, and will test are used from electricity
Holding signal value indicates.Specifically, since touch display panel needs constantly to detect touch signal, it can be pre-
The interval between the first detection cycle is first set, for example, can all be arranged one first during each frame image is shown
Detection cycle.Then in each first detection cycle, the step of each first electrode is carried out charging, power-off and is detected,
To obtain the self-capacitance situation of change of each first electrode, and the capacitance change that will test self-capacitance signal value table
Show.If the self-capacitance of some first electrode does not change, self-capacitance signal value is zero, and otherwise, self-capacitance signal value is then
For self-capacitance variable.
Then, in step 502, the second detection cycle for being different from the first detection cycle detect each first electrode with
Mutual tolerance signal value between corresponding second electrode.
In the present embodiment, can the second detection cycle detect between each first electrode and corresponding second electrode
Mutual tolerance signal value.Second detection cycle is the period different from the first detection cycle, and the two can be in the same image scanning
It, can also be in two adjacent or neighbouring image scanning frames in frame.Driving circuit can be by first lead in every a line
Successively apply pumping signal, such as pulse signal on one electrode.Meanwhile driving circuit can be by the second lead from second electrode
Upper reception signal, the mutual tolerance signal value between first electrode available in this way and corresponding second electrode, also can be obtained by
Capacitance size on the two-dimensional surface of entire touch display panel.If there is finger is close to touch display panel, will lead to
Localized capacitance amount at finger is reduced.According to the variable quantity situation of capacitance in plane, so that it may touch point coordinate is directly obtained,
I.e. possible finger touch position.
In an optional implementation of the present embodiment, detect between each first electrode and corresponding second electrode
Mutual tolerance signal value includes: to detect the mutual electricity between each first electrode and corresponding second electrode in each second detection cycle
The capacitance variations of appearance, and the capacitance variations that will test are indicated with mutual tolerance signal value.It is had detected whenever within a period 1
The self-capacitance value of first electrode, can also correspondingly be detected within a second round first electrode and corresponding second electrode it
Between mutual capacitance value.If the mutual capacitance between some first electrode and corresponding second electrode occurs during detection
Variation, then can indicate capacitance change with mutual tolerance signal value.
Finally, in step 503, determining touch location from appearance signal value and mutual tolerance signal value based on what is detected.
It, can be further right after having been respectively obtained in above-mentioned steps 501 and 502 from appearance signal value and mutual tolerance signal value
The two values carry out data analysis, so that it is determined that touch location.For example, if only being detected in the same first electrode certainly
Hold one in signal value and mutual tolerance signal value, it may be considered that external noise is produced on this electrode, and if examined simultaneously
It has measured from signal value and mutual tolerance signal value is held, it may be considered that touch operation has occurred on this electrode.
The touch control method of touch display unit provided in this embodiment can detecte and hold signal value certainly in first electrode,
Also it can detecte the mutual tolerance signal value between first electrode and corresponding second electrode, and above-mentioned from appearance signal by comprehensive descision
Value and mutual tolerance signal value determine touch location.By carrying out comprehensive analysis to from two signals of mutual tolerance, the external world can be reduced and made an uproar
Interference of the sound to touch display panel, improves the accuracy of identification of its touch control operation.
With further reference to Fig. 6, it illustrates the streams of another embodiment of the touch control method of the application touch display unit
Cheng Tu.
As shown in fig. 6, in step 601, detecting the appearance signal value certainly of each first electrode in the first detection cycle.This step
Suddenly identical as the step 501 in Fig. 5, details are not described herein.
Then, in step 602, according to detecting from one or more for holding signal value and determining that self-capacitance changed
A first electrode.
It, can be by capacitance signalling values not when detecting after holding signal value certainly of each first electrode in above-mentioned steps 601
The one or more first electrodes for being zero are determined as the first electrode that self-capacitance is changed.
Then, in step 603, each first electrode in said one or multiple first electrodes and corresponding the are obtained
Mutual tolerance signal value between two electrodes.
After determining the changed first electrode of self-capacitance in above-mentioned steps 602, illustrates to touch and be likely at this
Occur in a little first electrodes, therefore can further obtain the mutual tolerance signal value between these electrodes and second electrode.And at those
In the not changed first electrode of self-capacitance, illustrate that there is no touch operations, therefore does not need to remove to obtain this kind of electricity again
Mutual tolerance signal value between pole and second electrode.
Finally, in step 604, based on appearance certainly corresponding to each first electrode in said one or multiple first electrodes
Signal value and mutual tolerance signal value determine touch location.
This step is identical as the principle of the step 503 in Fig. 5, the difference is that only, the first electrode in this step is
The first electrode of variation occurred for self-capacitance, rather than whole first electrodes in touch display panel, therefore in this step
Data processing amount can significantly reduce.
In an optional implementation of the present embodiment, based on each of said one or multiple first electrodes first
Electrode is corresponding to determine that touch location includes: to determine each the according to preset corresponding relationship from holding signal value and mutual tolerance signal value
One electrode holds the corresponding mutual tolerance range of signal of signal value certainly；Determine whether the mutual tolerance signal value of each first electrode is in mutual tolerance
In range of signal；And if the mutual tolerance signal value of each first electrode is in the mutual tolerance range of signal, each first
Electrode is touched.Specifically, it is determining from after holding the signal value of appearance certainly of at least one changed first electrode, Ke Yigen
Determine that this holds mutual tolerance range of signal corresponding to signal value certainly according to preset corresponding relationship.In same primary touch, from appearance signal
Variable quantity and mutual tolerance signal variable quantity have certain corresponding relationship, for example, the variable quantity of mutual tolerance signal value be usually from
Between 0.4~0.5 times for holding signal value variable quantity.It can be according to the electricity of previous experience and touch panel specific corresponding to relationship
Pole structure is preset.After the range for determining mutual tolerance signal, so that it may whether determine the actually detected mutual tolerance signal value arrived
In the range.If so, touch operation has occurred at first electrode position in explanation, otherwise it is assumed that the position does not touch
Operation.
From fig. 6 it can be seen that the touch control method of touch display unit provided by the present embodiment, and shown in Fig. 5
Embodiment the difference is that, can first detect in first electrode from hold signal value, then detect again from hold change
First electrode and corresponding second electrode between mutual tolerance signal value.Since the mutual tolerance signal value of acquisition has been subjected to screening, because
This is by the way that from when holding signal value and mutual tolerance signal value to determine touch location, data volume to be treated greatly reduces, hence it is evident that
Improve the determination efficiency of touch location.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (12)
1. a kind of touch display panel characterized by comprising
Touch electrode, the touch electrode include plurality of first electrodes and the plurality of second electrodes, and
Control circuit；
Wherein, the multiple first electrode arranges and mutually insulated with a matrix type, wherein each first electrode passes through respectively
First lead is directly connected to the control circuit；And
The multiple second electrode is formed between the first electrode and insulate with the multiple first electrode, and the multiple the
Mutually insulated between two electrodes, each second electrode correspond at least one first electrode, and each second electrode passes through the respectively
Two leads are directly connected to the control circuit；
Each second electrode corresponds to multiple first electrodes on first direction, and the first direction is parallel to touch scanning side
To direction；
Each second electrode is the strip shaped electric poles extended along the first direction, and each second electrode is perpendicular to its length
The side in direction extends upward multiple extending electrode portions for separating first electrode；
The control circuit is configured as detecting the appearance signal value, and total face of the multiple second electrode certainly of the first electrode
Product is less than the gross area of the multiple first electrode.
2. touch display panel according to claim 1, wherein the touch electrode is multiplexed with common electrical in the display stage
Pole.
3. touch display panel according to claim 1, wherein the control circuit is configured as detecting each first electricity
Mutual tolerance signal value between pole and corresponding second electrode.
4. touch display panel according to claim 3, wherein the control circuit is to from the detection for holding signal value and mutually
The detection for holding signal value is that timesharing carries out.
5. touch display panel according to claim 3, wherein the control circuit is configured to according to detection
To from the one or more first electrodes held signal value and determine that self-capacitance changed, and based on one or more of
Each first electrode in first electrode it is corresponding from holding signal value and mutual tolerance signal value determines touch location.
6. touch display panel according to claim 1, wherein each second electrode is electric by the first strip being parallel to each other
Pole and the second strip shaped electric poles and the multiple third strip electrode groups being connected between the first strip shaped electric poles and the second strip shaped electric poles
At third strip shaped electric poles are vertical with the first strip shaped electric poles, and multiple first electrodes are kept apart.
7. a kind of touch display unit, including touch display panel according to any one of claim 1 to 6.
8. a kind of touch control method of touch display unit, the touch display unit includes according to claim 1 to any one of 6
The touch display panel, the touch control method include:
The appearance signal value certainly of each first electrode is detected in the first detection cycle；
The second detection cycle for being different from first detection cycle detect each first electrode and corresponding second electrode it
Between mutual tolerance signal value；And
Touch location is determined from appearance signal value and mutual tolerance signal value based on what is detected.
9. touch control method according to claim 8, wherein detect each first electrode from hold signal value include:
The capacitor that in each first detection cycle, detects the capacitance variations of the self-capacitance of each first electrode, and will test becomes
Change is indicated with self-capacitance signal value.
10. touch control method according to claim 8, wherein detect between each first electrode and corresponding second electrode
Mutual tolerance signal value include:
In each second detection cycle, the capacitor for detecting the mutual capacitance between each first electrode and corresponding second electrode becomes
Change, and the capacitance variations that will test are indicated with mutual tolerance signal value.
11. touch control method according to claim 8, wherein true from appearance signal value and mutual tolerance signal value based on what is detected
Determining touch location includes:
One or more first electrodes that self-capacitance is changed are determined according to the signal value of appearance certainly detected；
Obtain the mutual tolerance signal between each first electrode and corresponding second electrode in one or more of first electrodes
Value；And
It is true based on each first electrode in one or more of first electrodes corresponding appearance signal value and mutual tolerance signal value certainly
Determine touch location.
12. touch control method according to claim 11, wherein based on each of one or more of first electrodes
One electrode is corresponding to determine that touch location includes: from appearance signal value and mutual tolerance signal value
The corresponding mutual tolerance range of signal of the signal value of appearance certainly of each first electrode is determined according to preset corresponding relationship；
Determine whether the mutual tolerance signal value of each first electrode is in the mutual tolerance range of signal；And
If the mutual tolerance signal value of each first electrode is in the mutual tolerance range of signal, each first electrode
It is touched.
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| CN201510524499.0A CN105094490B (en) | 2015-08-24 | 2015-08-24 | Touch display panel, touch display unit and its touch control method |
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| CN201510524499.0A CN105094490B (en) | 2015-08-24 | 2015-08-24 | Touch display panel, touch display unit and its touch control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017170224A1 (en) * | 2016-03-30 | 2017-10-05 | シャープ株式会社 | Touch panel-equipped display device |
| TWI590126B (en) * | 2016-05-26 | 2017-07-01 | 友達光電股份有限公司 | Touch sensing array and driving method |
| KR102564601B1 (en) * | 2016-09-19 | 2023-08-09 | 엘지디스플레이 주식회사 | Driving circuit, touch display device and method for driving thereof |
| TWI629621B (en) * | 2017-02-22 | 2018-07-11 | 友達光電股份有限公司 | Touch array and driving method |
| CN109254678B (en) * | 2017-07-14 | 2021-07-20 | 奇景光电股份有限公司 | Embedded touch device and water mode detection method thereof |
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