CN103207718A - Mutual capacitance touch screen and touch sensing method thereof - Google Patents
Mutual capacitance touch screen and touch sensing method thereof Download PDFInfo
- Publication number
- CN103207718A CN103207718A CN2013100861699A CN201310086169A CN103207718A CN 103207718 A CN103207718 A CN 103207718A CN 2013100861699 A CN2013100861699 A CN 2013100861699A CN 201310086169 A CN201310086169 A CN 201310086169A CN 103207718 A CN103207718 A CN 103207718A
- Authority
- CN
- China
- Prior art keywords
- electrode
- touch
- switch
- control module
- tft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention belongs to the technical field of touch screens, and provides a mutual capacitance touch screen and a touch sensing method thereof. Firstly, a control unit is used for identifying the types of touch objects; and secondly, the control unit is used for controlling on and off of a corresponding first switch and a corresponding second switch, the widths and the spacing of sensing passages of receiving electrodes are dynamically adjusted, the widths and the spacing of the sensing passages can be increased for large touch objects such as a finger and can be decreased for small touch objects such as a touch pen, accordingly, input of various touch objects can be accurately detected, the number of the sensing passages can be reduced when the touch objects are large, overall scanning time is shortened, system resources are saved, reporting speed is increased, system response is further more sensitive, and user experience is excellent.
Description
Technical field
The invention belongs to the touch screen technology field, relate in particular to a kind of mutual capacitance type touch-screen and touch sensible method thereof.
Background technology
Along with technical development, writing technology more and more is held in esteem and looks, and in electric terminal, generally adopts the realization of mutual capacitance type touch-screen to the touch sensible of handwriting input at present.
Mutual capacitance type touch-screen inside comprises drive electrode and receiving electrode, and drive electrode is in order to send the low-voltage high-frequency signal and to project receiving electrode, to form stable electric current.When human body or felt pen touch touch-screen, can form an equivalent capacity between finger tip or nib and the touch-screen, and high-frequency signal can be gone into ground by this equivalence electric capacity, then the received quantity of electric charge of receiving electrode reduces, by the strength of current on the receiving electrode, can confirm touch point position.
Because the nib diameter of felt pen is general all less than finger tip, like this when the input of induction nib, spacing between each receiving electrode is less relatively, its reason is as follows: as shown in Figure 1a, R is receiving electrode, T is drive electrode, the A point is the touch point, and X-axis is represented noise figure, and Y-axis is represented strength of current value on the receiving electrode (being influence value), if the spacing between each receiving electrode keeps current higher value, then when nib moves from left to right, because the nib diameter is less, when nib is in the centre position A of two receiving electrodes, influence value approaches with noise figure or is consistent, then can't judge the current location of nib; For this reason, shown in Fig. 1 b, can reduce the spacing between each receiving electrode, then when nib is in the centre position A of two receiving electrodes, though influence value descends to some extent, but still be higher than noise figure, so can detect the position, touch point of nib.
Therefore, existing mutual capacitance type touch-screen is in order accurately to detect the touch point that all kinds touch object, often fixedly do the spacing between each receiving electrode little, though help to detect the input of tiny touch objects such as felt pen like this, but the input for bigger touch objects such as fingers then has little significance, increase whole sweep time though, induction channels quantity little owing to spacing more, and wasted more system resources; Simultaneously, the increase of sweep time means that the newspaper spot speed is slow, and system response is insensitive, and user experience is relatively poor.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of mutual capacitance type touch-screen, be intended to solve existing mutual capacitance type touch-screen since the spacing between each receiving electrode fixedly do little, make elongated to the sweep time of bigger touch object, waste system resource and then make that system response is insensitive, the problem of user experience difference.
The embodiment of the invention is achieved in that a kind of mutual capacitance type touch-screen, comprises many drive electrodes and many receiving electrodes, and described mutual capacitance type touch-screen also comprises:
A plurality of first switches, described a plurality of first switches are corresponding being connected on the lead line of each receiving electrode one by one respectively;
A plurality of second switches, described a plurality of second switches connect one to one respectively between the exit of each adjacent reception electrode;
Control module, described control module connects the exit of each receiving electrode, described first switch and described second switch, be used for the type that identification touches object, and according to recognition result, control the closed or disconnection of corresponding described first switch and described second switch, with induction channels width and the spacing of the described receiving electrode of dynamic adjustments, afterwards position probing is carried out in the touch point of described touch object.
Another purpose of the embodiment of the invention is to provide a kind of touch sensible method of aforesaid mutual capacitance type touch-screen, and described method comprises:
Control module identification touches the type of object, and according to recognition result, controls the closed or disconnection of corresponding first switch and second switch, with induction channels width and the spacing of each receiving electrode of dynamic adjustments;
Described control module carries out position probing to the touch point that touches object.
The mutual capacitance type touch-screen that the present invention proposes and touch sensible method thereof at first utilize control module that the type that touches object is identified, afterwards by the folding control of control module to corresponding first switch and second switch, realize the induction channels width of each receiving electrode of dynamic adjustments and the purpose of spacing and width, for bigger touch objects such as fingers, can increase induction channels width and spacing, for less touch objects such as felt pens, can reduce induction channels width and spacing, so both can accurately detect the input of all types of touch objects, can when the touch object is big, reduce induction channels quantity again, reduce the entire scan time, conserve system resources, improve the newspaper spot speed, and then make system response sensitiveer, user experience is good.
Description of drawings
Fig. 1 a is in the prior art, the detection schematic diagram of mutual capacitance type touch-screen when the spacing of each receiving electrode is big;
Fig. 1 b is in the prior art, and the mutual capacitance type touch-screen is at the spacing of each receiving electrode detection schematic diagram hour;
Fig. 2 is in the embodiment of the invention one, the principle of arranging of receiving electrode and drive electrode;
Fig. 3 is the process flow diagram of the touch sensible method of the mutual capacitance type touch-screen that provides of the embodiment of the invention two;
Fig. 4 is in the embodiment of the invention two, a kind of process flow diagram of the sweep span of dynamic adjustments induction electrode;
Fig. 5 is in the embodiment of the invention two, and control module identification touches a kind of process flow diagram of the type of object;
Fig. 6 a is in the embodiment of the invention two, the newspaper point area schematic when touching object for finger;
Fig. 6 b is in the embodiment of the invention two, the newspaper point area schematic when the touch object is felt pen;
Fig. 7 is in the embodiment of the invention two, and control module identification touches the another kind of process flow diagram of the type of object;
Fig. 8 is in the embodiment of the invention two, the another kind of process flow diagram of the sweep span of dynamic adjustments induction electrode;
Fig. 9 is the electrode of the Thin Film Transistor (TFT) LCD that provides of the embodiment of the invention three schematic diagram of arranging;
Figure 10 is the folded structure schematic diagram of the electrode of the Thin Film Transistor (TFT) LCD that provides of the embodiment of the invention three;
Figure 11 is in the embodiment of the invention four, and control module carries out the process flow diagram of position probing to the touch point that touches object.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Problem at existing mutual capacitance type touch-screen existence, the mutual capacitance type touch-screen that the present invention proposes is at first identified the type that touches object, by the folding control to corresponding first switch and second switch, realize the induction channels width of each receiving electrode of dynamic adjustments and the purpose of spacing afterwards.Describe technical scheme of the present invention in detail below in conjunction with embodiment:
Embodiment one
The embodiment of the invention one has proposed a kind of mutual capacitance type touch-screen, as shown in Figure 2, comprises many drive electrode T1 to Tn that are intervally arranged and many receiving electrode R1 to Rm that are intervally arranged, and many drive electrodes and many receiving electrodes intersect vertically.Unlike the prior art be that this mutual capacitance type touch-screen also comprises: a plurality of first switches 11, a plurality of first switches 11 are corresponding being connected on the lead line of each receiving electrode one by one respectively; A plurality of second switches 12, a plurality of second switches 12 connect one to one respectively between the exit of each adjacent reception electrode; The control module (not shown), control module connects exit, first switch 11 and the second switch 12 of each receiving electrode, be used for the type that identification touches object, and according to recognition result, control the closed or disconnection of corresponding first switch 11 and second switch 12, with induction channels width and the spacing of each receiving electrode of dynamic adjustments, afterwards position probing is carried out in the touch point that touches object.
Further, this mutual capacitance type touch-screen can also comprise: a plurality of the 3rd switches 13, a plurality of the 3rd switches 13 are corresponding being connected on the lead line of each drive electrode one by one respectively; A plurality of the 4th switches 14, a plurality of the 4th switches 14 connect one to one respectively between the exit of each adjacent reception electrode.At this moment, control module also is used for the type that identification touches object, and according to recognition result, controls the closed or disconnection of corresponding the 3rd switch 13 and the 4th switch 14, with induction channels width and the spacing of each drive electrode of dynamic adjustments, afterwards position probing is carried out in the touch point that touches object.
The mutual capacitance type touch-screen that the embodiment of the invention one proposes at first utilizes control module that the type that touches object is identified, afterwards by the folding control of control module to corresponding first switch 11 and second switch 12, realize the induction channels width of each receiving electrode of dynamic adjustments and the purpose of spacing and width, for bigger touch objects such as fingers, can increase induction channels width and spacing, for less touch objects such as felt pens, can reduce induction channels width and spacing, so both can accurately detect the input of all types of touch objects, can when the touch object is big, reduce induction channels quantity again, reduce the entire scan time, conserve system resources, improve the newspaper spot speed, and then make system response sensitiveer, user experience is good.
Embodiment two
The embodiment of the invention two has proposed a kind of touch sensible method of as above embodiment one described mutual capacitance type touch-screen, as shown in Figure 3, comprising:
Step S1: control module identification touches the type of object, and according to recognition result, controls the closed or disconnection of corresponding first switch 11 and second switch 12, with induction channels width and the spacing of each receiving electrode of dynamic adjustments.
In one case, as shown in Figure 4, step S1 can comprise:
Step S101: control module detects the touch action that touches object according to the current signal of receiving electrode.
Step S102: control module identification touches the type of object, the type is the classification that the contact area size when touching object and contact with touch-screen is carried out, if the touch object is finger, execution in step S103 then, if touching object and be finger and felt pen or touching object is felt pen, then execution in step S104.
Further, in one case, utilizing newspaper point region area size discrimination to go out to touch object is finger or felt pen, and at this moment, as shown in Figure 5, step S102 specifically can comprise:
Step S31: control module obtains the area at least one newspaper point zone according to the current signal of receiving electrode.
Step S32: respectively greater than first threshold, then control module identification touch object is finger as if each newspaper regional area.
Step S33: the area as if each newspaper point zone is less than or equal to first threshold respectively, and then control module identification touch object is felt pen.
Step S34: if the area in another part newspaper point zone is less than or equal to first threshold to the regional area of part newspaper point respectively greater than first threshold respectively, then control module identification touch object is felt pen and finger.
For example, shown in Fig. 6 a and Fig. 6 b, to step S34, control module can identify the newspaper point zone when reporting the regional B of point to be finger touch by step S31, the newspaper point zone when the regional C of newspaper point is the felt pen touch.
Further, in another case, the current signal peak value size that utilization newspaper point zone is corresponding and/or near the inclined degree of the curved portion of peak point are distinguished and touched object is finger or felt pen, and at this moment, as shown in Figure 7, step S102 specifically can comprise:
Step S41: control module obtains at least one newspaper point zone according to the current signal of receiving electrode.
Step S42: if the peak value of the current signal of each newspaper point zone correspondence satisfies first value range, and/or the slope between the neighbor point of the peak point of the current signal in each newspaper point zone and peak point is less than default slope value, and then control module identification touch object is to point.Wherein, the neighbor point of peak point can be that first point, second point or the n(n adjacent with peak point is positive integer) point, the value of n is set according to the actual requirements by manufacturer.
Step S43: if the peak value of the current signal of each newspaper point zone correspondence satisfies second value range, and/or the slope between the neighbor point of the peak point of the current signal in each newspaper point zone and peak point is more than or equal to default slope value, and then to identify the touch object be felt pen to control module.Wherein, the higher limit of first value range is higher than the lower limit of second value range.
Step S44: if the slope between the neighbor point of the peak point of the current signal in satisfied first value range of peak value of a part of newspaper current signal that the zone is corresponding and/or each newspaper zone and peak point is less than default slope value, and the peak value of the corresponding current signal in another part newspaper point zone satisfies slope between the neighbor point of peak point and peak point of current signal in second value range and/or each newspaper point zone more than or equal to default slope value, and then to identify the touch object be felt pen and finger to control module.
Step S103: if the touch object is finger, then control module is controlled the closed of corresponding first switch 11 and second switch 12 or is disconnected, to increase induction channels width and the spacing of each receiving electrode.
Step S104: be finger and felt pen or to touch object be felt pen if touch object, then control module is controlled the closed of corresponding first switch 11 and second switch 12 or is disconnected, to reduce induction channels width and the spacing of each receiving electrode.
In another case, as shown in Figure 8, step S1 can comprise:
Step S201: control module detects the touch action that touches object according to the current signal of receiving electrode.
Step S202: control module identification touches the type of object, is finger, then execution in step S203 if touch object, if touching object and be finger and felt pen or touching object is felt pen, then execution in step S205 is felt pen if touch object, then execution in step S207.The detailed process of this step S202 such as Fig. 5 or shown in Figure 7 do not give unnecessary details at this.
Step S203: being finger if touch object, then judging whether to reduce induction channels width and the spacing of each receiving electrode, is execution in step S206 then, otherwise execution in step S204.
Step S204: the induction channels width and the spacing that keep each receiving electrode.
Step S205: be finger and felt pen or to touch object be felt pen if touch object, then control module is controlled the closed of corresponding first switch 11 and second switch 12 or is disconnected, to reduce induction channels width and the spacing of each receiving electrode.
Step S206: control module is controlled the closed of corresponding first switch 11 and second switch 12 or is disconnected, to reduce induction channels width and the spacing of each receiving electrode.
Step S207: being felt pen if touch object, then judging whether to reduce induction channels width and the spacing of each receiving electrode, is execution in step S206 then, otherwise execution in step S208.
Step S208: control module is controlled the closed of corresponding first switch 11 and second switch 12 or is disconnected, to increase induction channels width and the spacing of each receiving electrode.
Step S2: control module carries out position probing to the touch point that touches object.
In the embodiment of the invention two, if the mutual capacitance type touch-screen also comprises the 3rd switch 13 and the 4th switch 14, then as above step S1 and step S2 are described to the control procedure of corresponding the 3rd switch 13 and the 4th switch 14 for control module, do not give unnecessary details at this.
The touch sensible method of the mutual capacitance type touch-screen that the embodiment of the invention two provides is at first identified the type that touches object, afterwards by the folding control to corresponding first switch 11 and second switch 12, realize the induction channels width of each receiving electrode of dynamic adjustments and the purpose of spacing and width, for bigger touch objects such as fingers, can increase induction channels width and spacing, for less touch objects such as felt pens, can reduce induction channels width and spacing, so both can accurately detect the input of all types of touch objects, can when the touch object is big, reduce induction channels quantity again, reduce the entire scan time, conserve system resources, improve the newspaper spot speed, and then make system response sensitiveer, user experience is good.
Embodiment three
The embodiment of the invention three has proposed a kind of Thin Film Transistor (TFT) LCD, this Thin Film Transistor (TFT) LCD is based on plane conversion (In-Plane Switching, IPS) the Thin Film Transistor (TFT) LCD of technology, its electrode is arranged principle as shown in Figure 9, and the folded structure principle of its electrode as shown in figure 10.
Specifically, as shown in Figure 9, this Thin Film Transistor (TFT) LCD comprises: directions X public electrode 22; Intersect with directions X public electrode 22 respectively and signal electrode 21 and the Y-direction public electrode 23 of vertical arrangement, and signal electrode 21 and Y-direction public electrode 23 mutually disjoint; Intersect with signal electrode 21 and Y-direction public electrode 23 and the switch electrode 24 of vertical arrangement, and directions X public electrode 22 and switch electrode 24 mutually disjoint; Be arranged in directions X public electrode 22, signal electrode 21, Y-direction public electrode 23 and switch electrode 24, surround the pixel electrode 25 in the zone, and the part of pixel electrode 25 and switch electrode 24 are overlapping; The Thin Film Transistor (TFT) 26 that connects signal electrode 21 and pixel electrode 25.
As shown in figure 10, wherein, 201 is the 3rd insulation course; 202 is signal electrode; 203 are the Thin Film Transistor (TFT) drain electrode; 204 is pixel electrode; 205 is the 3rd insulation course; 206 is the Y-direction public electrode; 207 is second insulation course; 208 is the directions X public electrode; 209 is first insulation course; 210 is glass substrate; 211 is second insulation course; 212 is second insulation course; 213 is switch electrode; 214 is Thin Film Transistor (TFT).
The manufacturing process of this Thin Film Transistor (TFT) LCD is: at first vacuum splashing and plating molybdenum aluminium neodymium on the glass pole plate, and photoengraving pattern switch electrode; Afterwards, form first insulation course by the plasma enhanced chemical vapor deposition method; Afterwards, by vacuum splashing and plating ITO, photoengraving pattern forms the directions X public electrode; Afterwards, form Thin Film Transistor (TFT), photoengraving pattern by the plasma enhanced chemical vapor deposition method; Afterwards, form second insulation course, photoengraving pattern by the plasma enhanced chemical vapor deposition method; Afterwards, vacuum splashing and plating molybdenum aluminium neodymium, photoengraving pattern form signal electrode and Thin Film Transistor (TFT) drain electrode; Afterwards, form the 3rd insulation course, photoengraving pattern by the plasma enhanced chemical vapor deposition method; Afterwards, vacuum splashing and plating ITO, photoengraving pattern forms Y-direction public electrode and pixel electrode.
The displaying principle of this Thin Film Transistor (TFT) LCD is: when switch electrode 24 is closed, Thin Film Transistor (TFT) 26 is equivalent to two reverse diodes and joins, this moment, the electric current of signal electrode 21 can't flow to Thin Film Transistor (TFT) 26 drain electrodes by Thin Film Transistor (TFT) 26, because pixel electrode 25 is communicated with Thin Film Transistor (TFT) 26 drain electrodes, thereby do not have electric current to flow to pixel electrode at this moment, can't set up electric field between pixel electrode 25 and directions X public electrode 22 and the Y-direction public electrode 23.When switch electrode 24 is opened, the electric current of signal electrode 21 flows to Thin Film Transistor (TFT) 26 drain electrodes by Thin Film Transistor (TFT) 26, set up electric field between pixel electrode 25 and directions X public electrode 22 and the Y-direction public electrode 23 this moment, liquid crystal molecule rotates under electric field action, finishes Presentation Function.
Unlike the prior art be that in the embodiment of the invention three, at least one directions X public electrode 22 constitutes drive electrodes, at least one signal electrode 21 constitutes receiving electrodes; Perhaps at least one directions X public electrode 22 constitutes receiving electrode, at least one signal electrode 21 constitutes drive electrode; Perhaps at least one directions X public electrode 22 constitutes drive electrode, at least one Y-direction public electrode 23 constitutes receiving electrode; Perhaps at least one directions X public electrode 22 constitutes receiving electrode, at least one Y-direction public electrode 23 constitutes drive electrode.This receiving electrode is receiving electrode described in the embodiment one, and this drive electrode is drive electrode described in the embodiment one, does not give unnecessary details at this.
As seen, the embodiment of the invention three can significantly be improved the performance that has the Thin Film Transistor (TFT) LCD now, the enhancing ease for use with the Thin Film Transistor (TFT) LCD that embodiment one is applied to the IPS technology.
Embodiment four
The embodiment of the invention four has proposed a kind of touch sensible method of as above embodiment three described Thin Film Transistor (TFT) LCD, and its concrete steps are identical with the embodiment of the invention two, do not give unnecessary details at this.
Further, in the embodiment of the invention four, control module comprises touch-control chip and host-processor.Generally speaking, in having the Thin Film Transistor (TFT) LCD of touch function, the touch sensible data are to transfer to the touch-control chip to handle, but for tiny touch object, need induction channels to scan with little spacing, the data volume of the touch sensible data that then need handle is how much levels and rises, can cause the deal with data of touch-control chip to stop up like this, for head it off, the embodiment of the invention four is when execution in step S2, can to alleviate the processing pressure of touch-control chip, improve data processing speed suitably under the situation touch sensible data directly being transferred to the host-processor processing.Specifically, at this moment, as shown in figure 11, step S2 comprises:
Step S21: the touch-control chip is gathered the current signal of receiving electrode, if in step S1, increase induction channels width and the spacing of each receiving electrode, execution in step S22 then is if reduce induction channels width and the spacing of each receiving electrode, then execution in step S23 in step S1.
Step S22: if increase induction channels width and the spacing of each receiving electrode, then the current signal of touch-control chip utilization collection obtains the touch point position data, and this position data is reported host-processor.
Step S23: if reduce induction channels width and the spacing of each receiving electrode, then the touch-control chip sends to host-processor with current signal.
Step S24: host-processor utilizes current signal, obtains the touch point position data, and reports this position data certainly.
The touch sensible method of the Thin Film Transistor (TFT) LCD that the embodiment of the invention four provides is the Thin Film Transistor (TFT) LCD that embodiment two is applied to the IPS technology, except the beneficial effect that possesses embodiment two, also by reasonable coordination touch-control chip or host-processor sensed data is handled, improve the execution efficient of system, improved data-handling capacity and processing speed.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is can control relevant hardware by program to finish, described program can be in being stored in a computer read/write memory medium, described storage medium is as ROM/RAM, disk, CD etc.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a mutual capacitance type touch-screen comprises many drive electrodes and many receiving electrodes, it is characterized in that, described mutual capacitance type touch-screen also comprises:
A plurality of first switches, described a plurality of first switches are corresponding being connected on the lead line of each receiving electrode one by one respectively;
A plurality of second switches, described a plurality of second switches connect one to one respectively between the exit of each adjacent reception electrode;
Control module, described control module connects the exit of each receiving electrode, described first switch and described second switch, be used for the type that identification touches object, and according to recognition result, control the closed or disconnection of corresponding described first switch and described second switch, with induction channels width and the spacing of the described receiving electrode of dynamic adjustments, afterwards position probing is carried out in the touch point of described touch object.
2. mutual capacitance type touch-screen as claimed in claim 1 is characterized in that, described mutual capacitance type touch-screen also comprises:
A plurality of the 3rd switches, described a plurality of the 3rd switches are corresponding being connected on the lead line of each drive electrode one by one respectively;
A plurality of the 4th switches, described a plurality of the 4th switches connect one to one respectively between the exit of each adjacent reception electrode;
Described control module also is used for according to described recognition result, control the closed or disconnection of corresponding described the 3rd switch and described the 4th switch, with induction channels width and the spacing of each drive electrode of dynamic adjustments, afterwards position probing is carried out in the touch point of described touch object.
3. mutual capacitance type touch-screen as claimed in claim 1 or 2, it is characterized in that, described drive electrode is at least one directions X public electrode in the Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one signal electrode in the described Thin Film Transistor (TFT) LCD; Perhaps
Described drive electrode is at least one signal electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD; Perhaps
Described drive electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one Y-direction public electrode in the described Thin Film Transistor (TFT) LCD; Perhaps
Described drive electrode is at least one Y-direction public electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD.
4. mutual capacitance type touch-screen as claimed in claim 3 is characterized in that, described Thin Film Transistor (TFT) LCD comprises:
The directions X public electrode;
Intersect with described directions X public electrode respectively and signal electrode and the Y-direction public electrode of vertical arrangement, and described signal electrode and described Y-direction public electrode mutually disjoint;
Intersect with described signal electrode and described Y-direction public electrode and the switch electrode of vertical arrangement, and described directions X public electrode and described switch electrode mutually disjoint;
Be arranged in described directions X public electrode, described signal electrode, described Y-direction public electrode and described switch electrode and surround pixel electrode in the zone, and the part of described pixel electrode and described switch electrode are overlapping;
The Thin Film Transistor (TFT) that connects described signal electrode and described pixel electrode.
5. the touch sensible method of a mutual capacitance type touch-screen as claimed in claim 1 is characterized in that, described method comprises:
Control module identification touches the type of object, and according to recognition result, controls the closed or disconnection of corresponding first switch and second switch, with induction channels width and the spacing of each receiving electrode of dynamic adjustments;
Described control module carries out position probing to the touch point that touches object.
6. the touch sensible method of mutual capacitance type touch-screen as claimed in claim 5, it is characterized in that, described control module identification touches the type of object, and according to recognition result, control the closed or disconnection of corresponding first switch and second switch, comprise with the induction channels width of each receiving electrode of dynamic adjustments and the step of spacing:
Described control module detects the touch action of described touch object according to the current signal of described receiving electrode;
Described control module is identified the type of described touch object;
If described touch object is finger, then described control module is controlled the closed of corresponding described first switch and described second switch or is disconnected, to increase induction channels width and the spacing of each receiving electrode;
If described touch object is finger and felt pen or to touch object be felt pen, then described control module is controlled the closed of corresponding described first switch and described second switch or is disconnected, to reduce induction channels width and the spacing of each receiving electrode.
7. the touch sensible method of mutual capacitance type touch-screen as claimed in claim 5, it is characterized in that, described control module identification touches the type of object, and according to recognition result, control the closed or disconnection of corresponding first switch and second switch, comprise with the induction channels width of each receiving electrode of dynamic adjustments and the step of spacing:
Described control module detects the touch action that touches object according to the current signal of receiving electrode;
Described control module is identified the type of described touch object;
If described touch object is finger, then judge whether to reduce induction channels width and the spacing of each receiving electrode, be that then described control module is controlled the closed of corresponding described first switch and described second switch or disconnected, reducing induction channels width and the spacing of each receiving electrode, otherwise keep induction channels width and the spacing of each receiving electrode;
If described touch object is finger and felt pen or to touch object be felt pen, then described control module is controlled the closed of corresponding described first switch and described second switch or is disconnected, to reduce induction channels width and the spacing of each receiving electrode;
If described touch object is felt pen, then judge whether to reduce induction channels width and the spacing of each receiving electrode, be that then described control module is controlled the closed of corresponding described first switch and described second switch or disconnected, to reduce induction channels width and the spacing of each receiving electrode, otherwise described control module is controlled the closed of corresponding described first switch and described second switch or is disconnected, to increase induction channels width and the spacing of each receiving electrode.
8. as the touch sensible method of claim 6 or 7 described mutual capacitance type touch-screens, it is characterized in that the step that described control module is identified the type of described touch object comprises:
Described control module obtains the area at least one newspaper point zone according to the current signal of receiving electrode;
If the area in each newspaper point zone is respectively greater than first threshold, then to identify described touch object be finger to described control module;
If the area in each newspaper point zone is less than or equal to described first threshold respectively, then to identify described touch object be felt pen to described control module;
The area in another part newspaper point zone is less than or equal to described first threshold respectively if the area in a part of newspaper point zone is respectively greater than described first threshold, and then to identify described touch object be felt pen and finger to described control module.
9. as the touch sensible method of claim 6 or 7 described mutual capacitance type touch-screens, it is characterized in that the step that described control module is identified the type of described touch object comprises:
Described control module obtains at least one newspaper point zone according to the current signal of receiving electrode;
If the peak value of the current signal that each newspaper point zone is corresponding satisfies first value range, and/or the slope between the neighbor point of the peak point of the current signal in each newspaper point zone and peak point is less than default slope value, and then to identify described touch object be to point to described control module;
If the peak value of the current signal that each newspaper point zone is corresponding satisfies second value range, and/or the slope between the neighbor point of the peak point of the current signal in each newspaper point zone and peak point is more than or equal to default slope value, then to identify described touch object be felt pen to described control module, and the higher limit of described first value range is higher than the lower limit of described second value range;
If the peak value of the current signal that a part of newspaper point zone is corresponding satisfies slope between the neighbor point of the peak point of current signal in described first value range and/or each newspaper point zone and peak point less than default slope value, and the peak value of the corresponding current signal in another part newspaper point zone satisfies slope between the neighbor point of the peak point of current signal in described second value range and/or each newspaper point zone and peak point more than or equal to default slope value, and then to identify described touch object be felt pen and finger to described control module.
10. as the touch sensible method of claim 5,6 or 7 described mutual capacitance type touch-screens, it is characterized in that, described drive electrode is at least one directions X public electrode in the Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one signal electrode in the described Thin Film Transistor (TFT) LCD; Perhaps described drive electrode is at least one signal electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD; Perhaps described drive electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one Y-direction public electrode in the described Thin Film Transistor (TFT) LCD; Perhaps described drive electrode is at least one Y-direction public electrode in the described Thin Film Transistor (TFT) LCD, and described receiving electrode is at least one directions X public electrode in the described Thin Film Transistor (TFT) LCD; Described control module comprises touch-control chip and the host-processor in the described Thin Film Transistor (TFT) LCD, and the step that described control module carries out position probing to the touch point that touches object comprises:
Described touch-control chip is gathered the current signal of described receiving electrode;
If increase induction channels width and the spacing of each receiving electrode, then the current signal of described touch-control chip utilization collection obtains the touch point position data, and described position data is reported described host-processor;
If reduce induction channels width and the spacing of each receiving electrode, then described touch-control chip sends to described host-processor with current signal, and afterwards, described host-processor utilizes current signal, obtains the touch point position data, and reports described position data certainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086169.9A CN103207718B (en) | 2013-03-18 | 2013-03-18 | A kind of mutual capacitance type touch screen and touch sensible method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086169.9A CN103207718B (en) | 2013-03-18 | 2013-03-18 | A kind of mutual capacitance type touch screen and touch sensible method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103207718A true CN103207718A (en) | 2013-07-17 |
| CN103207718B CN103207718B (en) | 2016-08-03 |
Family
ID=48754961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310086169.9A Active CN103207718B (en) | 2013-03-18 | 2013-03-18 | A kind of mutual capacitance type touch screen and touch sensible method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103207718B (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246397A (en) * | 2013-04-23 | 2013-08-14 | 敦泰科技有限公司 | Touch sensing method, touch sensing microprocessor and touch liquid-crystal display device |
| CN104750338A (en) * | 2013-12-31 | 2015-07-01 | 乐金显示有限公司 | Touch screen device, touch screen display device using the same, and driving method thereof |
| CN105183254A (en) * | 2015-08-18 | 2015-12-23 | 南京触宏微电子有限公司 | Touch detection method and apparatus for touch screen and touch screen |
| CN105426027A (en) * | 2014-09-12 | 2016-03-23 | 意法半导体亚太私人有限公司 | Capacitive touch screen with adaptive touch sensing threshold based on sharpness of the capacitive data |
| CN106201132A (en) * | 2015-05-28 | 2016-12-07 | 联咏科技股份有限公司 | Touch-control module and relevant touch control method for contactor control device |
| US9703428B2 (en) | 2014-01-27 | 2017-07-11 | Shanghai Avic Optoelectronics Co., Ltd. | Touch panel and touch detecting method therefor |
| CN107102210A (en) * | 2016-02-22 | 2017-08-29 | 深圳市汇顶科技股份有限公司 | A kind of capacitance determining method and device based on capacitive touch chip |
| CN107122072A (en) * | 2016-02-25 | 2017-09-01 | 原相科技股份有限公司 | Three-dimension gesture method for sensing and use its touch sensing device |
| WO2017185575A1 (en) * | 2016-04-28 | 2017-11-02 | 北京金山办公软件有限公司 | Touch screen track recognition method and apparatus |
| CN107479762A (en) * | 2013-07-22 | 2017-12-15 | 株式会社日本显示器 | Touch detecting apparatus |
| CN107704126A (en) * | 2017-09-22 | 2018-02-16 | 广州视源电子科技股份有限公司 | A kind of separation method of touch data, device, equipment and storage medium |
| CN109189278A (en) * | 2017-10-27 | 2019-01-11 | 上海飞智电子科技有限公司 | Touch control method, touch device and touch-control system applied to capacitance touch screen |
| US10474288B2 (en) | 2015-05-28 | 2019-11-12 | Novatek Microelectronics Corp. | Touch control method for touch device |
| CN110928441A (en) * | 2019-10-14 | 2020-03-27 | 深圳市天英联合教育股份有限公司 | Touch object identification method, system, terminal equipment and storage medium |
| CN110987031A (en) * | 2019-12-17 | 2020-04-10 | 河北工业大学 | Flexible touch sensor |
| US10712846B2 (en) | 2014-12-04 | 2020-07-14 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch display panel and method for driving the same, and touch device |
| US20210325979A1 (en) * | 2019-08-20 | 2021-10-21 | Sigmasense, Llc. | Generation of a digital pad on an interactive display device |
| CN115268699A (en) * | 2022-08-10 | 2022-11-01 | 深圳市安信泰科技有限公司 | Touch driving system and method based on multiple channels |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090309851A1 (en) * | 2008-06-17 | 2009-12-17 | Jeffrey Traer Bernstein | Capacitive Sensor Panel Having Dynamically Reconfigurable Sensor Size and Shape |
| CN101714046A (en) * | 2008-10-07 | 2010-05-26 | 统宝光电股份有限公司 | Device and method for detecting object position and image display system using device |
| CN102750055A (en) * | 2011-04-18 | 2012-10-24 | 三星移动显示器株式会社 | Touch screen system and method of driving the same |
| CN102914893A (en) * | 2011-08-04 | 2013-02-06 | 乐金显示有限公司 | Touch sensor integrated display device |
-
2013
- 2013-03-18 CN CN201310086169.9A patent/CN103207718B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090309851A1 (en) * | 2008-06-17 | 2009-12-17 | Jeffrey Traer Bernstein | Capacitive Sensor Panel Having Dynamically Reconfigurable Sensor Size and Shape |
| CN101714046A (en) * | 2008-10-07 | 2010-05-26 | 统宝光电股份有限公司 | Device and method for detecting object position and image display system using device |
| CN102750055A (en) * | 2011-04-18 | 2012-10-24 | 三星移动显示器株式会社 | Touch screen system and method of driving the same |
| CN102914893A (en) * | 2011-08-04 | 2013-02-06 | 乐金显示有限公司 | Touch sensor integrated display device |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246397A (en) * | 2013-04-23 | 2013-08-14 | 敦泰科技有限公司 | Touch sensing method, touch sensing microprocessor and touch liquid-crystal display device |
| CN103246397B (en) * | 2013-04-23 | 2016-04-27 | 敦泰科技有限公司 | Touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device |
| CN107479762A (en) * | 2013-07-22 | 2017-12-15 | 株式会社日本显示器 | Touch detecting apparatus |
| CN107479762B (en) * | 2013-07-22 | 2020-07-03 | 株式会社日本显示器 | Touch detection device |
| CN104750338A (en) * | 2013-12-31 | 2015-07-01 | 乐金显示有限公司 | Touch screen device, touch screen display device using the same, and driving method thereof |
| US9703441B2 (en) | 2013-12-31 | 2017-07-11 | Lg Display Co., Ltd. | Touch screen device, touch screen display device using the same, and driving method thereof |
| US9703428B2 (en) | 2014-01-27 | 2017-07-11 | Shanghai Avic Optoelectronics Co., Ltd. | Touch panel and touch detecting method therefor |
| CN105426027A (en) * | 2014-09-12 | 2016-03-23 | 意法半导体亚太私人有限公司 | Capacitive touch screen with adaptive touch sensing threshold based on sharpness of the capacitive data |
| CN105426027B (en) * | 2014-09-12 | 2018-12-25 | 意法半导体亚太私人有限公司 | The capacitive touch screen of adaptive touch-sensing threshold value with the acutance based on Capacitive data |
| US10712846B2 (en) | 2014-12-04 | 2020-07-14 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch display panel and method for driving the same, and touch device |
| US10852882B2 (en) | 2015-05-28 | 2020-12-01 | Novatek Microelectronics Corp. | Fingerprint sensing control method for fingerprint sensing device |
| CN106201132B (en) * | 2015-05-28 | 2019-11-01 | 联咏科技股份有限公司 | Touch-control module and relevant touch control method for touch device |
| US10474288B2 (en) | 2015-05-28 | 2019-11-12 | Novatek Microelectronics Corp. | Touch control method for touch device |
| CN106201132A (en) * | 2015-05-28 | 2016-12-07 | 联咏科技股份有限公司 | Touch-control module and relevant touch control method for contactor control device |
| CN105183254A (en) * | 2015-08-18 | 2015-12-23 | 南京触宏微电子有限公司 | Touch detection method and apparatus for touch screen and touch screen |
| WO2017143711A1 (en) * | 2016-02-22 | 2017-08-31 | 深圳市汇顶科技股份有限公司 | Capacitance detection method and apparatus based on capacitive touch control chip |
| CN107102210A (en) * | 2016-02-22 | 2017-08-29 | 深圳市汇顶科技股份有限公司 | A kind of capacitance determining method and device based on capacitive touch chip |
| KR101932209B1 (en) * | 2016-02-22 | 2018-12-24 | 선전 구딕스 테크놀로지 컴퍼니, 리미티드 | Capacitance detection method and device based on capacitive touch controller chip |
| CN107102210B (en) * | 2016-02-22 | 2019-08-30 | 深圳市汇顶科技股份有限公司 | A kind of capacitance determining method and device based on capacitive touch chip |
| US10120499B2 (en) | 2016-02-22 | 2018-11-06 | Shenzhen GOODIX Technology Co., Ltd. | Capacitance detection method and device based on capacitive touch controller chip |
| CN107122072A (en) * | 2016-02-25 | 2017-09-01 | 原相科技股份有限公司 | Three-dimension gesture method for sensing and use its touch sensing device |
| US11042290B2 (en) | 2016-04-28 | 2021-06-22 | Beijing Kingsoft Office Software, Inc. | Touch screen track recognition method and apparatus |
| WO2017185575A1 (en) * | 2016-04-28 | 2017-11-02 | 北京金山办公软件有限公司 | Touch screen track recognition method and apparatus |
| CN107704126A (en) * | 2017-09-22 | 2018-02-16 | 广州视源电子科技股份有限公司 | A kind of separation method of touch data, device, equipment and storage medium |
| CN109189278B (en) * | 2017-10-27 | 2022-03-15 | 上海飞智电子科技有限公司 | Touch method, touch device and touch system applied to capacitive touch screen |
| CN109189278A (en) * | 2017-10-27 | 2019-01-11 | 上海飞智电子科技有限公司 | Touch control method, touch device and touch-control system applied to capacitance touch screen |
| US20210325979A1 (en) * | 2019-08-20 | 2021-10-21 | Sigmasense, Llc. | Generation of a digital pad on an interactive display device |
| CN110928441B (en) * | 2019-10-14 | 2024-04-05 | 深圳市天英联合科技股份有限公司 | Touch object identification method, system, terminal equipment and storage medium |
| CN110928441A (en) * | 2019-10-14 | 2020-03-27 | 深圳市天英联合教育股份有限公司 | Touch object identification method, system, terminal equipment and storage medium |
| CN110987031A (en) * | 2019-12-17 | 2020-04-10 | 河北工业大学 | Flexible touch sensor |
| CN115268699A (en) * | 2022-08-10 | 2022-11-01 | 深圳市安信泰科技有限公司 | Touch driving system and method based on multiple channels |
| CN115268699B (en) * | 2022-08-10 | 2023-06-13 | 深圳市安信泰科技有限公司 | Touch driving system and method based on multiple channels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103207718B (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103207718A (en) | Mutual capacitance touch screen and touch sensing method thereof | |
| CN102902437B (en) | Touch-screen testing equipment and contactor control device | |
| CN101609385B (en) | Method and system for using a plurality of resistive touch screens to realize multi-point input | |
| CN102221945B (en) | Touch screen, liquid crystal display and drive detection method | |
| EP2555095A2 (en) | Touch panel and method for manufacturing the same | |
| CN102200871B (en) | touch panel | |
| CN103135810A (en) | Pressure sensitivity adjustment method of touch screen and pressure sensitivity adjustment system of touch screen | |
| US20130088448A1 (en) | Touch screen panel | |
| CN104252277A (en) | Touch panel array and scanning method used for same | |
| US10379686B2 (en) | Touch display panel and method for driving the same | |
| CN103164054A (en) | Capacitive touch sensor and capacitive pen | |
| CN103218090A (en) | System and method for identifying inputs input to mobile device with touch panel | |
| WO2013013633A1 (en) | Induction unit, touch detecting assembly and touch sensitive device | |
| CN103294290A (en) | Touch panel driving method capable of eliminating charging noise | |
| CN104375733A (en) | Touch display screen driving circuit and method | |
| CN101452360A (en) | Sensing device for capacitance touch control screen | |
| CN202351848U (en) | Touch liquid crystal display | |
| CN103353819B (en) | There is the multipoint self-capacitance touch screen of high precision writing pencil input function | |
| CN103218096A (en) | Touch detection method for bendable projected capacitive touch panel | |
| CN101393496B (en) | Touch control point detecting method of touch control plate | |
| CN104991677A (en) | Touch liquid crystal display panel and device | |
| CN102736767A (en) | Touch device and identification method thereof | |
| CN106249976A (en) | A kind of multi-touch method for digital oscilloscope touch screen | |
| CN103049132A (en) | Monolayer electrode layout of touch screen | |
| CN203812221U (en) | Capacitive touchpad |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |