CN103207718B - A kind of mutual capacitance type touch screen and touch sensible method thereof - Google Patents
A kind of mutual capacitance type touch screen and touch sensible method thereof Download PDFInfo
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- CN103207718B CN103207718B CN201310086169.9A CN201310086169A CN103207718B CN 103207718 B CN103207718 B CN 103207718B CN 201310086169 A CN201310086169 A CN 201310086169A CN 103207718 B CN103207718 B CN 103207718B
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Abstract
The invention belongs to touch screen technology field, it is provided that a kind of mutual capacitance type touch screen and touch sensible method thereof.The type of touching object is identified by this mutual capacitance type touch screen and touch sensible method thereof first with control unit, by control unit, the folding of corresponding first switch and second switch is controlled afterwards, realize dynamically regulating the induction channels width of each reception electrode and spacing and the purpose of width, for bigger touching object such as fingers, induction channels width and spacing can be increased, for less touching object such as felt pens, induction channels width and spacing can be reduced, the most both the input of all types of touching object can be accurately detected, induction channels quantity can be reduced again when touching object is bigger, reduce the entire scan time, save system resource, improve report spot speed, and then make system response sensitiveer, user experience is good.
Description
Technical field
The invention belongs to touch screen technology field, particularly relate to a kind of mutual capacitance type touch screen and touch sensible method thereof.
Background technology
Along with technology develops, writing technology is increasingly held in esteem and regards, and at present in electric terminal, commonly used mutual capacitance type touch screen realizes the touch sensible to handwriting input.
Including drive electrode inside mutual capacitance type touch screen and receive electrode, drive electrode is in order to send low-voltage high-frequency signal and to project reception electrode, to form stable electric current.When human body or felt pen touch touch screen, an equivalent capacity can be formed between finger tip or nib and touch screen, and high-frequency signal can enter ground by this equivalent capacity, then receive the quantity of electric charge received by electrode and reduce, by receiving the current intensity on electrode, i.e. can confirm that the position of touch point.
Owing to the nib diameter of felt pen is generally individually smaller than finger tip, so when sensing nib input, each spacing received between electrode is relatively small, its reason is as follows: as shown in Figure 1a, R is for receiving electrode, T is drive electrode, A point is touch point, X-axis represents noise figure, Y-axis represents current strength (i.e. influence value) on reception electrode, if the spacing respectively received between electrode keeps current higher value, then when nib moves from left to right, owing to nib diameter is less, when nib is in the centre position A that two receive electrode, influence value is close or consistent with noise figure, then cannot judge the current location of nib；To this end, as shown in Figure 1 b, the spacing between each reception electrode can be reduced, then when nib is in the centre position A that two receive electrode, although influence value has declined, but remains above noise figure, therefore can detect that the position, touch point of nib.
Therefore, existing mutual capacitance type touch screen is in order to be accurately detected the touch point of all kinds touching object, often by fixing for the spacing between each reception electrode do little, although so contributing to detecting the input of the tiny touching object such as felt pen, but the input for bigger touching object such as fingers then has little significance, though add the sweep time of entirety owing to spacing is little, induction channels quantity, and waste more system resource；Meanwhile, the increase of sweep time means to report spot speed slow, and system response is insensitive, and user experience is poor.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of mutual capacitance type touch screen, aim to solve the problem that existing mutual capacitance type touch screen does owing to the spacing between each reception electrode is fixing little so that, waste system resource elongated to sweep time of bigger touching object and then make the problem that system response is insensitive, user experience is poor.
The embodiment of the present invention is achieved in that a kind of mutual capacitance type touch screen, and including a plurality of drive electrode and a plurality of reception electrode, described mutual capacitance type touch screen also includes:
Multiple first switches, the plurality of first switchs one_to_one corresponding respectively is connected on the lead line of each reception electrode；
Multiple second switches, the plurality of second switch connects one to one respectively between the exit of each adjacent reception electrode；
Control unit, described control unit connects the exit of each reception electrode, described first switch and described second switch, for identifying the type of touching object, and according to recognition result, control the most described first switch and the Guan Bi of described second switch or disconnection, dynamically to regulate induction channels width and the spacing of described reception electrode, afterwards the touch point of described touching object is carried out position detection.
The another object of the embodiment of the present invention is to provide a kind of touch sensible method of mutual capacitance type touch screen as above, and described method includes:
The type of control unit identification touching object, and according to recognition result, control corresponding first switch and the Guan Bi of second switch or disconnection, dynamically to regulate induction channels width and the spacing of each reception electrode；
Described control unit carries out position detection to the touch point of touching object.
The type of touching object is identified by mutual capacitance type touch screen and touch sensible method thereof that the present invention proposes first with control unit, by control unit, the folding of corresponding first switch and second switch is controlled afterwards, realize dynamically regulating the induction channels width of each reception electrode and spacing and the purpose of width, for bigger touching object such as fingers, induction channels width and spacing can be increased, for less touching object such as felt pens, induction channels width and spacing can be reduced, the most both the input of all types of touching object can be accurately detected, induction channels quantity can be reduced again when touching object is bigger, reduce the entire scan time, save system resource, improve report spot speed, and then make system response sensitiveer, user experience is good.
Accompanying drawing explanation
Fig. 1 a is in prior art, the mutual capacitance type touch screen Cleaning Principle figure when the spacing of each reception electrode is bigger；
Fig. 1 b is in prior art, the mutual capacitance type touch screen Cleaning Principle figure when the spacing of each reception electrode is less；
Fig. 2 is in the embodiment of the present invention one, receives the arrangement principle of electrode and drive electrode；
Fig. 3 is the flow chart of the touch sensible method of the mutual capacitance type touch screen that the embodiment of the present invention two provides；
Fig. 4 is in the embodiment of the present invention two, a kind of flow chart of the type of control unit identification touching object；
Fig. 5 is in the embodiment of the present invention two, the another kind of flow chart of the type of control unit identification touching object；
Fig. 6 a is in the embodiment of the present invention two, and touching object is report point area schematic during finger；
Fig. 6 b is in the embodiment of the present invention two, and touching object is report point area schematic during felt pen；
Fig. 7 is in the embodiment of the present invention two, dynamically a kind of flow chart of the sweep span of regulation induction electrode；
Fig. 8 is the electrode arrangements schematic diagram of the TFT liquid crystal display that the embodiment of the present invention three provides；
Fig. 9 is that the electrode of the TFT liquid crystal display that the embodiment of the present invention three provides folds structure schematic diagram；
Figure 10 is in the embodiment of the present invention four, and control unit carries out the flow chart of position detection to the touch point of touching object.
Detailed description of the invention
In order to make the 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 explain the present invention, is not intended to limit the present invention.
The problem existed for existing mutual capacitance type touch screen, first the type of touching object is identified by the mutual capacitance type touch screen that the present invention proposes, afterwards by the folding of corresponding first switch and second switch is controlled, it is achieved dynamically regulate induction channels width and the purpose of spacing of each reception electrode.Below in conjunction with embodiment detailed description technical scheme:
Embodiment one
The embodiment of the present invention one proposes a kind of mutual capacitance type touch screen, as in figure 2 it is shown, include a plurality of drive electrode T1 to Tn being intervally arranged and a plurality of reception electrode R1 to Rm being intervally arranged, and a plurality of drive electrode intersects vertically with a plurality of reception electrode.Unlike the prior art, this mutual capacitance type touch screen also includes: multiple first switches 11, and multiple first switch 11 one_to_one corresponding respectively are connected on the lead line of each reception electrode；Multiple second switches 12, multiple second switches 12 connect one to one respectively between the exit of each adjacent reception electrode；Control unit (not shown), control unit connects the exit of each reception electrode, the first switch 11 and second switch 12, for identifying the type of touching object, and according to recognition result, control corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, dynamically to regulate induction channels width and the spacing of each reception electrode, afterwards the touch point of touching object is carried out position detection.
Further, this mutual capacitance type touch screen can also include: multiple 3rd switches 13, and multiple 3rd switch 13 one_to_one corresponding respectively are connected on the lead line of each drive electrode；Multiple 4th switches 14, multiple 4th switches 14 connect one to one respectively between the exit of each adjacent reception electrode.Now, control unit is additionally operable to identify the type of touching object, and according to recognition result, controls corresponding 3rd switch 13 and the Guan Bi of the 4th switch 14 or disconnection, dynamically to regulate induction channels width and the spacing of each drive electrode, afterwards the touch point of touching object is carried out position detection.
The type of touching object is identified by the mutual capacitance type touch screen that the embodiment of the present invention one proposes first with control unit, by control unit, the folding of corresponding first switch 11 and second switch 12 is controlled afterwards, realize dynamically regulating the induction channels width of each reception electrode and spacing and the purpose of width, for bigger touching object such as fingers, induction channels width and spacing can be increased, for less touching object such as felt pens, induction channels width and spacing can be reduced, the most both the input of all types of touching object can be accurately detected, induction channels quantity can be reduced again when touching object is bigger, reduce the entire scan time, save system resource, improve report spot speed, and then make system response sensitiveer, user experience is good.
Embodiment two
The embodiment of the present invention two proposes the touch sensible method of the mutual capacitance type touch screen described in a kind of example performed as described above, as it is shown on figure 3, include:
Step S1: the type of control unit identification touching object, and according to recognition result, control corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, dynamically to regulate induction channels width and the spacing of each reception electrode.
In one case, step S1 may include that
Step S101: control unit, according to the current signal of reception electrode, detects the touch action of touching object.
Step S102: the type of control unit identification touching object, the type is based on the classification that contact area size when touching object contacts is carried out with touch screen, if touching object is finger, then perform step S103, if touching object is finger and felt pen or touching object is felt pen, then perform step S104.
Further, in one case, utilizing report point region area size discrimination to go out touching object is finger or felt pen, now, as it is shown in figure 5, step S102 specifically may include that
Step S31: control unit, according to the current signal of reception electrode, obtains the area at least one report point region.
Step S32: if the area in each report point region is respectively more than first threshold, then control unit identification touching object is finger.
Step S33: if the area in each report point region is respectively less than or equal to first threshold, then control unit identification touching object is felt pen.
Step S34: if the area in another part report point region is respectively less than or equal to first threshold more than first threshold respectively for the area in part report point region, then control unit identification touching object is felt pen and finger.
Such as, as shown in figures 6 a and 6b, by step S31 to step S34, control unit may recognize that reporting some region B is report point region during finger touch, and report point region C is report point region during felt pen touch.
Further, in another case, utilizing near report current signal peak value size corresponding to some region and/or peak point that the inclined degree of curved portion distinguishes touching object is finger or felt pen, and now, as shown in Figure 4, step S102 specifically may include that
Step S41: control unit, according to the current signal of reception electrode, obtains at least one report point region.
Step S42: if the peak value that each report puts current signal corresponding to region meets the first value range, and/or each report point region current signal peak point and the neighbor point of peak point between slope less than preset slope value, then control unit identification touching object is finger.Wherein, the neighbor point of peak point can be first point, second point or n-th (n be positive integer) point adjacent with peak point, and the value of n is set according to the actual requirements by manufacturer.
Step S43: if the peak value that each report puts current signal corresponding to region meets the second value range, and/or each report point region current signal peak point and the neighbor point of peak point between slope more than or equal to preset slope value, then control unit identification touching object is felt pen.Wherein, the higher limit of the first value range is higher than the lower limit of the second value range.
Step S44: if the slope between peak point and the neighbor point of peak point of the peak value of current signal corresponding to the part report point region current signal that meets the first value range and/or each report point region is less than presetting slope value, and the slope between peak point and the neighbor point of peak point of the current signal that the peak value of current signal corresponding to another part report point region meets the second value range and/or each report point region is more than or equal to presetting slope value, then control unit identification touching object is felt pen and finger.
Step S103: if touching object is finger, then control unit controls corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, to increase induction channels width and the spacing of each reception electrode.
Step S104: if touching object is finger and felt pen or touching object is felt pen, then control unit controls corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, to reduce induction channels width and the spacing of each reception electrode.
In another case, as it is shown in fig. 7, step S1 may include that
Step S201: control unit, according to the current signal of reception electrode, detects the touch action of touching object.
Step S202: the type of control unit identification touching object, if touching object is finger, then performs step S203, if touching object is finger and felt pen or touching object is felt pen, then perform step S205, if touching object is felt pen, then perform step S207.The detailed process of this step S202, as shown in Fig. 5 or Fig. 4, is not repeated herein.
Step S203: if touching object is finger, then judge whether induction channels width and the spacing needing to reduce each reception electrode, is then to perform step S206, otherwise performs step S204.
Step S204: keep induction channels width and the spacing of each reception electrode.
Step S205: if touching object is finger and felt pen or touching object is felt pen, then control unit controls corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, to reduce induction channels width and the spacing of each reception electrode.
Step S206: control unit controls corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, to reduce induction channels width and the spacing of each reception electrode.
Step S207: if touching object is felt pen, then judge whether induction channels width and the spacing needing to reduce each reception electrode, is then to perform step S206, otherwise performs step S208.
Step S208: control unit controls corresponding first switch 11 and the Guan Bi of second switch 12 or disconnection, to increase induction channels width and the spacing of each reception electrode.
Step S2: control unit carries out position detection to the touch point of touching object.
In the embodiment of the present invention two, if mutual capacitance type touch screen also includes the 3rd switch 13 and the 4th switch 14, then control unit is to described in corresponding 3rd switch 13 and control process as above step S1 of the 4th switch 14 and step S2, is not repeated herein.
First the type of touching object is identified by the touch sensible method of the mutual capacitance type touch screen that the embodiment of the present invention two provides, afterwards by the folding of corresponding first switch 11 and second switch 12 is controlled, realize dynamically regulating the induction channels width of each reception electrode and spacing and the purpose of width, for bigger touching object such as fingers, induction channels width and spacing can be increased, for less touching object such as felt pens, induction channels width and spacing can be reduced, the most both the input of all types of touching object can be accurately detected, induction channels quantity can be reduced again when touching object is bigger, reduce the entire scan time, save system resource, improve report spot speed, and then make system response sensitiveer, user experience is good.
Embodiment three
The embodiment of the present invention three proposes a kind of TFT liquid crystal display, this TFT liquid crystal display is based on plane conversion (In-PlaneSwitching, IPS) the TFT liquid crystal display of technology, as shown in Figure 8, its electrode folds structure principle as shown in Figure 9 to its electrode arrangements principle.
Specifically, as shown in Figure 8, this TFT liquid crystal display includes: X-direction public electrode 22；Intersect with X-direction public electrode 22 respectively and the signal electrode 21 of vertical arrangement and Y-direction public electrode 23, 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 X-direction public electrode 22 and switch electrode 24 mutually disjoint；It is arranged in X-direction public electrode 22, signal electrode 21, Y-direction public electrode 23 and switch electrode 24, the pixel electrode 25 in enclosed area, and a part for pixel electrode 25 is overlapping with switch electrode 24；Connect signal electrode 21 and the TFT 26 of pixel electrode 25.
As it is shown in figure 9, wherein, 201 is the 3rd insulating barrier；202 is signal electrode；203 drain for TFT；204 is pixel electrode；205 is the 3rd insulating barrier；206 is Y-direction public electrode；207 is the second insulating barrier；208 is X-direction public electrode；209 is the first insulating barrier；210 is glass substrate；211 is the second insulating barrier；212 is the second insulating barrier；213 is switch electrode；214 is TFT.
The manufacturing process of this TFT liquid crystal display is: first vacuum splashing and plating molybdenum aluminum neodymium on glass pole plate, and photoengraving pattern switch electrode；Afterwards, the first insulating barrier is formed by plasma enhanced chemical vapor deposition method；Afterwards, by vacuum splashing and plating ITO, photoengraving pattern forms X-direction public electrode；Afterwards, TFT, photoengraving pattern are formed by plasma enhanced chemical vapor deposition method；Afterwards, the second insulating barrier, photoengraving pattern are formed by plasma enhanced chemical vapor deposition method；Afterwards, vacuum splashing and plating molybdenum aluminum neodymium, photoengraving pattern forms signal electrode and drains with TFT；Afterwards, the 3rd insulating barrier, photoengraving pattern are formed by 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 TFT liquid crystal display is: when switch electrode 24 is closed, TFT 26 is equivalent to two reverse diodes and connects, now the electric current of signal electrode 21 cannot be flowed to TFT 26 drained by TFT 26, owing to pixel electrode 25 connects with TFT 26 drain electrode, thus now do not have electric current to flow to pixel electrode, electric field cannot be set up between pixel electrode 25 and X-direction public electrode 22 and Y-direction public electrode 23.When switch electrode 24 is opened, the electric current of signal electrode 21 flows to TFT 26 by TFT 26 and drains, now set up electric field between pixel electrode 25 and X-direction public electrode 22 and Y-direction public electrode 23, liquid crystal molecule rotates under electric field action, completes display function.
Unlike the prior art, in the embodiment of the present invention three, at least one X-direction public electrode 22 constitutes drive electrode, at least one signal electrode 21 constitutes reception electrode；Or at least one X-direction public electrode 22 constitutes reception electrode, at least one signal electrode 21 constitutes drive electrode；Or at least one X-direction public electrode 22 constitutes drive electrode, at least one Y-direction public electrode 23 constitutes reception electrode；Or at least one X-direction public electrode 22 constitutes reception electrode, at least one Y-direction public electrode 23 constitutes drive electrode.This reception electrode is reception electrode described in embodiment one, and this drive electrode is drive electrode described in embodiment one, is not repeated herein.
Visible, embodiment one is applied to the TFT liquid crystal display of IPS technology by the embodiment of the present invention three, can significantly improve the performance of existing TFT liquid crystal display, strengthens ease for use.
Embodiment four
The embodiment of the present invention four proposes the touch sensible method of the TFT liquid crystal display described in a kind of example performed as described above three, and its concrete steps are identical with the embodiment of the present invention two, are not repeated herein.
Further, in the embodiment of the present invention four, control unit includes touch chip and host-processor.Generally speaking, in the TFT liquid crystal display with touch function, touch sensible data are to transfer to touch chip to process, but for tiny touching object, induction channels is needed to be scanned with Small Distance, the data volume then needing the touch sensible data processed is that geometry level rises, the process data that so can cause touch chip block, in order to solve this problem, the embodiment of the present invention four is when performing step S2, host-processor can be directly transferred to process touch sensible data in the appropriate case, to alleviate the processing pressure of touch chip, improve data processing speed.Specifically, now, as shown in Figure 10, step S2 includes:
Step S21: touch chip collection receives the current signal of electrode, if increasing induction channels width and the spacing of each reception electrode in step sl, then performing step S22, if reducing induction channels width and the spacing of each reception electrode in step sl, then performing step S23.
Step S22: if increasing induction channels width and the spacing of each reception electrode, then touch chip utilizes the current signal gathered, and obtains the position data of touch point, and this position data is reported host-processor.
Step S23: if reducing induction channels width and the spacing of each reception electrode, then current signal is sent to host-processor by touch chip.
Step S24: host-processor utilizes current signal, obtains the position data of touch point, and from reporting this position data.
The touch sensible method of the TFT liquid crystal display that the embodiment of the present invention four provides is that embodiment two is applied to the TFT liquid crystal display of IPS technology, in addition to possessing the beneficial effect of embodiment two, also by reasonable coordination touch chip or host-processor, sensed data is processed, improve the execution efficiency of system, improve data-handling capacity and processing speed.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method can be by the hardware that program controls to be correlated with and completes, described program can be in being stored in a computer read/write memory medium, described storage medium, such as ROM/RAM, disk, CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (9)
1. a mutual capacitance type touch screen, including a plurality of drive electrode and a plurality of reception electrode, it is characterised in that described mutual capacitance type touch screen also includes:
Multiple first switches, the plurality of first switchs one_to_one corresponding respectively is connected on the lead line of each reception electrode；
Multiple second switches, the plurality of second switch connects one to one respectively between the exit of each adjacent reception electrode；
Control unit, described control unit connects the exit of each reception electrode, described first switch and described second switch, for identifying the type of touching object, and according to recognition result, control the most described first switch and the Guan Bi of described second switch or disconnection, dynamically to regulate induction channels width and the spacing of described reception electrode, afterwards the touch point of described touching object is carried out position detection；
Described in described control unit identification, the type of touching object specifically includes:
Described control unit, according to the current signal of reception electrode, obtains at least one report point region；
If the peak value of the current signal that each report point region is corresponding meets the first value range, and/or the slope between peak point and the neighbor point of peak point of the current signal in each report point region is less than presetting slope value, touching object described in the most described control unit identification is finger；
If the peak value of the current signal that each report point region is corresponding meets the second value range, and/or each report point region current signal peak point and the neighbor point of peak point between slope more than or equal to preset slope value, touching object described in the most described control unit identification is felt pen, and the higher limit of described first value range is higher than the lower limit of described second value range；
If the slope between peak point and the neighbor point of peak point of the current signal that the peak value of the current signal that part report point region is corresponding meets described first value range and/or each report point region is less than presetting slope value, and the slope between peak point and the neighbor point of peak point of the current signal that the peak value of current signal corresponding to another part report point region meets described second value range and/or each report point region is more than or equal to presetting slope value, touching object described in the most described control unit identification is felt pen and finger.
2. mutual capacitance type touch screen as claimed in claim 1, it is characterised in that described mutual capacitance type touch screen also includes:
Multiple 3rd switches, the plurality of 3rd switchs one_to_one corresponding respectively is connected on the lead line of each drive electrode；
Multiple 4th switches, the plurality of 4th switch connects one to one respectively between the exit of each adjacent reception electrode；
Described control unit is additionally operable to according to described recognition result, control the most described 3rd switch and the Guan Bi of described 4th switch or disconnection, dynamically to regulate induction channels width and the spacing of each drive electrode, afterwards the touch point of described touching object is carried out position detection.
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 X-direction public electrode in TFT liquid crystal display, and described reception electrode is at least one signal electrode in described TFT liquid crystal display；Or
Described drive electrode is at least one signal electrode in described TFT liquid crystal display, and described reception electrode is at least one X-direction public electrode in described TFT liquid crystal display；Or
Described drive electrode is at least one X-direction public electrode in described TFT liquid crystal display, and described reception electrode is at least one Y-direction public electrode in described TFT liquid crystal display；Or
Described drive electrode is at least one Y-direction public electrode in described TFT liquid crystal display, and described reception electrode is at least one X-direction public electrode in described TFT liquid crystal display.
4. mutual capacitance type touch screen as claimed in claim 3, it is characterised in that described TFT liquid crystal display includes:
X-direction public electrode；
Intersect with described X-direction public electrode respectively and the signal electrode of vertical arrangement and Y-direction public electrode, and described signal electrode and described Y-direction public electrode mutually disjoint；
Intersect and the switch electrode of vertical arrangement with described signal electrode and described Y-direction public electrode, and described X-direction public electrode and described switch electrode mutually disjoint；
It is arranged in the pixel electrode in described X-direction public electrode, described signal electrode, described Y-direction public electrode and described switch electrode enclosed area, and a part for described pixel electrode is overlapping with described switch electrode；
Connect described signal electrode and the TFT of described pixel electrode.
5. the touch sensible method of a mutual capacitance type touch screen as claimed in claim 1, it is characterised in that described method includes:
The type of control unit identification touching object, and according to recognition result, control corresponding first switch and the Guan Bi of second switch or disconnection, dynamically to regulate induction channels width and the spacing of each reception electrode；
Described control unit carries out position detection to the touch point of touching object；
Described in described control unit identification, the step of the type of touching object includes:
Described control unit, according to the current signal of reception electrode, obtains at least one report point region；
If the peak value of the current signal that each report point region is corresponding meets the first value range, and/or the slope between peak point and the neighbor point of peak point of the current signal in each report point region is less than presetting slope value, touching object described in the most described control unit identification is finger；
If the peak value of the current signal that each report point region is corresponding meets the second value range, and/or each report point region current signal peak point and the neighbor point of peak point between slope more than or equal to preset slope value, touching object described in the most described control unit identification is felt pen, and the higher limit of described first value range is higher than the lower limit of described second value range；
If the slope between peak point and the neighbor point of peak point of the current signal that the peak value of the current signal that part report point region is corresponding meets described first value range and/or each report point region is less than presetting slope value, and the slope between peak point and the neighbor point of peak point of the current signal that the peak value of current signal corresponding to another part report point region meets described second value range and/or each report point region is more than or equal to presetting slope value, touching object described in the most described control unit identification is felt pen and finger.
6. the touch sensible method of mutual capacitance type touch screen as claimed in claim 5, it is characterized in that, the type of described control unit identification touching object, and according to recognition result, controlling corresponding first switch and the Guan Bi of second switch or disconnection, the step of induction channels width and spacing dynamically to regulate each reception electrode includes:
Described control unit, according to the current signal of described reception electrode, detects the touch action of described touching object；
The type of touching object described in described control unit identification；
If described touching object is finger, the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to increase induction channels width and the spacing of each reception electrode；
If described touching object is finger and felt pen or touching object is felt pen, the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to reduce induction channels width and the spacing of each reception electrode.
7. the touch sensible method of mutual capacitance type touch screen as claimed in claim 5, it is characterized in that, the type of described control unit identification touching object, and according to recognition result, controlling corresponding first switch and the Guan Bi of second switch or disconnection, the step of induction channels width and spacing dynamically to regulate each reception electrode includes:
Described control unit, according to the current signal of reception electrode, detects the touch action of touching object；
The type of touching object described in described control unit identification；
If described touching object is finger, then judge whether induction channels width and the spacing needing to reduce each reception electrode, it is that the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to reduce induction channels width and the spacing of each reception electrode, otherwise keep induction channels width and the spacing of each reception electrode；
If described touching object is finger and felt pen or touching object is felt pen, the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to reduce induction channels width and the spacing of each reception electrode；
If described touching object is felt pen, then judge whether induction channels width and the spacing needing to reduce each reception electrode, it is that the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to reduce induction channels width and the spacing of each reception electrode, the most described control unit controls the most described first switch and the Guan Bi of described second switch or disconnection, to increase induction channels width and the spacing of each reception electrode.
The touch sensible method of mutual capacitance type touch screen the most as claimed in claims 6 or 7, it is characterised in that described in described control unit identification, the step of the type of touching object includes:
Described control unit, according to the current signal of reception electrode, obtains the area at least one report point region；
If the area in each report point region is more than first threshold respectively, touching object described in the most described control unit identification is finger；
If the area in each report point region is less than or equal to described first threshold respectively, touching object described in the most described control unit identification is felt pen；
If more than described first threshold, the area in another part report point region is less than or equal to described first threshold to the area in part report point region respectively respectively, touching object described in the most described control unit identification is felt pen and finger.
9. the touch sensible method of the mutual capacitance type touch screen as described in claim 5,6 or 7, it is characterized in that, described drive electrode is at least one X-direction public electrode in TFT liquid crystal display, and described reception electrode is at least one signal electrode in described TFT liquid crystal display；Or described drive electrode is at least one signal electrode in described TFT liquid crystal display, described reception electrode is at least one X-direction public electrode in described TFT liquid crystal display；Or described drive electrode is at least one X-direction public electrode in described TFT liquid crystal display, described reception electrode is at least one Y-direction public electrode in described TFT liquid crystal display；Or described drive electrode is at least one Y-direction public electrode in described TFT liquid crystal display, described reception electrode is at least one X-direction public electrode in described TFT liquid crystal display；Described control unit includes the touch chip in described TFT liquid crystal display and host-processor, and the step that described control unit carries out position detection to the touch point of touching object includes:
Described touch chip gathers the current signal of described reception electrode；
If increasing induction channels width and the spacing of each reception electrode, the most described touch chip utilizes the current signal gathered, and obtains the position data of touch point, and described position data is reported described host-processor；
If reducing induction channels width and the spacing of each reception electrode, current signal is sent to described host-processor by the most described touch chip, and afterwards, described host-processor utilizes current signal, obtains the position data of touch point, and from reporting described position data.
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2015043200A (en) * | 2013-07-22 | 2015-03-05 | 株式会社ジャパンディスプレイ | Touch detection device, and display device and electronic apparatus with touch detection function |
| KR102192521B1 (en) * | 2013-12-31 | 2020-12-17 | 엘지디스플레이 주식회사 | Touch screen device, touch screen display device using the same and method for driving thereof |
| CN103927065B (en) | 2014-01-27 | 2017-02-15 | 上海中航光电子有限公司 | Touch screen and method for detecting same |
| US9524067B2 (en) * | 2014-09-12 | 2016-12-20 | Stmicroelectronics Asia Pacific Pte Ltd | Capacitive touch screen with adaptive touch sensing threshold based on sharpness of the capacitive data |
| CN104571756B (en) | 2014-12-04 | 2017-11-10 | 上海天马微电子有限公司 | A kind of touch display panel and its driving method, touching device |
| US10474288B2 (en) | 2015-05-28 | 2019-11-12 | Novatek Microelectronics Corp. | Touch control method for touch device |
| US9996187B2 (en) * | 2015-05-28 | 2018-06-12 | Novatek Microelectronics Corp. | Touch control module for touch device and related touch control method |
| 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 |
| 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 |
| 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 |
| CN107329602A (en) | 2016-04-28 | 2017-11-07 | 珠海金山办公软件有限公司 | A kind of touch-screen track recognizing method and device |
| 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 |
| CN109126117B (en) * | 2017-10-27 | 2021-04-13 | 上海飞智电子科技有限公司 | Touch method, touch device and touch system applied to capacitive touch screen |
| US10976837B2 (en) * | 2019-08-20 | 2021-04-13 | Sigmasense, Llc. | User input passive device for use with 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 |
| CN110987031B (en) * | 2019-12-17 | 2021-06-22 | 河北工业大学 | Flexible touch sensor |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054300B2 (en) * | 2008-06-17 | 2011-11-08 | Apple Inc. | Capacitive sensor panel having dynamically reconfigurable sensor size and shape |
-
2013
- 2013-03-18 CN CN201310086169.9A patent/CN103207718B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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