CN105260062B - Touch device and its driving method - Google Patents
Touch device and its driving method Download PDFInfo
- Publication number
- CN105260062B CN105260062B CN201510810063.8A CN201510810063A CN105260062B CN 105260062 B CN105260062 B CN 105260062B CN 201510810063 A CN201510810063 A CN 201510810063A CN 105260062 B CN105260062 B CN 105260062B
- Authority
- CN
- China
- Prior art keywords
- touch
- control
- signal
- scanning
- gate electrode
- 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.)
- Active
Links
Abstract
The invention discloses a kind of touch device and the driving method of the touch device, which includes：Touch control electrode layer, the touch control electrode of touch control electrode layer are divided at least two touch control electrode groups；The gate electrode layer being oppositely arranged with touch control electrode layer, the gate electrode of gate electrode layer is divided into corresponds at least two gate electrode groups set with touch control electrode group；Driving chip, for transmitting scanning signal to gate electrode successively in the display stage and receiving scanning feedback signal, when the scanning feedback signal for receiving n-th of gate electrode synchronism output in i-th of gate electrode group, it controls to j-th of touch control electrode group and applies touch-control drive signal, while also control to remaining touch control electrode group and apply common electrode signal.The touch device of the present invention realizes touch-control scanning by the synchronous scanning mode of split screen timesharing and shows the synchronous of scanning, solves the problems, such as that high definition more than liquid crystal display device can not realize that touch-control scanning is synchronous with display scanning in the prior art.
Description
Technical field
The present invention relates to touch-control actuation techniques field more particularly to the driving sides of a kind of touch device and the touch device
Method.
Background technology
In the structure of available liquid crystal display device, generally use is set touch panel function is integrated with liquid crystal display panel
The scheme of meter.The integrated design scheme of touch panel function and liquid crystal panel includes " In-cell " technology and " On-cell " skill
Art, " In-cell " technology refer to the technical solution being embedded into touch panel function in liquid crystal display panel, " On-cell " skill
Art refers to the technical solution being embedded into touch panel function between colored filter substrate and polarizer.
For the liquid crystal display device of " In-cell " technology, the display stage of driving chip includes display blank time
With display driving time.When common electrode layer is multiplexed with touch control electrode layer, using display blank time to common electrode layer
Touch-control scanning is carried out, using showing that driving time carries out display scanning to common electrode layer.However needed for existing common electrode layer
The touch-control sweep time wanted is about 4ms, and the display blank time of driving chip is far below touch-control sweep time, therefore described tactile
The mode of control and display synchronous scanning can not be normally carried out.
Show that driving time, increase show that the mode of blank time realizes touch-control scanning and display scanning together according to compression
Step, then can cause the display effect of liquid crystal display device poor；It is real according to the mode that pulse signal is reduced in display blank time
Existing touch-control scanning is synchronous with display scanning, then touch-control effect can be caused poor.
Current existing " In cell " technology, driving chip are only capable of carrying out high definition with the display scanning of sub-screen and touch-control
The synchronization of scanning realizes touch-control scanning in a manner that multiple display blank times are superimposed and shows scanning
It is synchronous.For screen more than high definition, since it shows that blank time is shorter, the limitation of existing driving chip ability and its need are simultaneous
Care for touch-control and display scan function so that can not realize that touch-control scanning is synchronous with display scanning.
The content of the invention
The present invention provides a kind of touch device and the driving method of the touch device, to solve driving chip in the prior art
Can power limit and its take into account touch-control and display scan function so that display blank time be far below touch-control sweep time when, liquid crystal
Display device can not realize the problem of touch-control scanning is synchronous with display scanning.
In a first aspect, the present invention provides a kind of touch device, including：
Touch control electrode layer, the touch control electrode of the touch control electrode layer is divided at least two touch control electrode groups, for receiving
Touch-control drive signal or common electrode signal；
The gate electrode layer being oppositely arranged with the touch control electrode layer, the gate electrode of the gate electrode layer is divided into be touched with described
It controls electrode group and corresponds at least two gate electrode groups set, each described gate electrode is for receiving scanning signal and synchronous
Output scanning feedback signal；
Driving chip, for transmitting scanning signal to the gate electrode successively in the display stage and receiving the scanning instead
Feedback signal, when the scanning feedback signal for receiving n-th of gate electrode synchronism output in i-th of gate electrode group,
It controls to j-th of touch control electrode group and applies the touch-control drive signal, while also control to the remaining touch control electrode group
Apply the common electrode signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is the positive integer more than or equal to 1.
Further, the quantity of the touch control electrode in each described touch control electrode group is equal.
Further, the quantity of the gate electrode in each described gate electrode group is equal.
Further, the gate electrode for receiving the scanning signal is synchronously swept to described in driving chip output
Feedback signal is retouched as sine wave signal.
Further, the driving chip includes counting unit, is swept for receiving described in the gate electrode synchronism output
Feedback signal is retouched, and counts the scanning feedback signal of reception；Correspondingly,
The driving chip be used for display the stage, when the counting unit counts are into i-th of gate electrode group
During the scanning feedback signal of n-th of gate electrode output, control to j-th of touch control electrode group and apply the touch-control driving
Signal, while also control to the remaining touch control electrode group and apply the common electrode signal.
Further, the touch device further includes：At least two on-off circuits, the on-off circuit and touch-control electricity
Pole group, which corresponds, to be set；
The first input end of the on-off circuit, the second input terminal, control terminal are electrically connected respectively with the driving chip, are used
In the touch-control drive signal, common electrode signal and the control signal that receive the driving chip output respectively；The on-off circuit
Output terminal be electrically connected with each touch control electrode of corresponding one touch control electrode group, in the control signal
Under control, the touch-control drive signal or the common electrode signal are transmitted to the every of a corresponding touch control electrode group
One touch control electrode.
Further, the driving chip further includes：At least two first universal inputs/GPIO1 mouthfuls of output and one the
Two general input/output GPIO2 mouthfuls；
The on-off circuit with described GPIO1 mouthful correspond setting, described GPIO1 mouthfuls with the corresponding on-off circuit
Control terminal connection, for by the control signal transmission of the driving chip to the corresponding on-off circuit；
Described GPIO2 mouthfuls is electrically connected with each touch control electrode, for the touch sense signals of the touch control electrode to be passed
Transport to the driving chip.
Second aspect, the present invention also provides a kind of driving method of touch device, the touch device is first aspect
The touch device, including：
In the display stage, scanning signal is transmitted to the gate electrode of each gate electrode group of gate electrode layer successively, and is received
The scanning feedback signal of the gate electrode synchronism output；
When the scanning feedback signal for receiving n-th of gate electrode synchronism output in i-th of gate electrode group,
It controls to j-th of touch control electrode group and applies the touch-control drive signal, while also control to the remaining touch control electrode group
Apply the common electrode signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is the positive integer more than or equal to 1.
Further, the scanning feedback signal of the gate electrode synchronism output of the scanning signal is received as just
String ripple signal.
Touch device provided by the invention and its driving method, in the display stage, driving chip transmits successively to gate electrode
Scanning signal simultaneously receives gate electrode scanning feedback signal, and when receiving, n-th of gate electrode in i-th of gate electrode group is synchronously defeated
During the scanning feedback signal gone out, control to j-th of touch control electrode group and apply touch-control drive signal, while also control to remaining touch-control
Electrode group applies common electrode signal, and thus the touch device realizes touch-control by the synchronous scanning mode of split screen timesharing and scans
It is synchronous with display scanning.The technical solution does not limit the driving force of driving chip, does not limit the length of display blank time yet
As long as driving chip takes into account touch-control and display function, touch-control and the display of touch device can be realized in degree through the above scheme
Synchronous scanning, solving high definition more than liquid crystal display device in the prior art can not realize that touch-control scanning is synchronous with display scanning
The problem of.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the schematic diagram for the touch device that the embodiment of the present invention one provides；
Fig. 2A is a kind of schematic diagram for scanning touch control electrode layer that the embodiment of the present invention one provides；
Fig. 2 B are the schematic diagrames for another scanning touch control electrode layer that the embodiment of the present invention one provides；
Fig. 2 C are the schematic diagrames of the driving chip control synchronous scanning of corresponding diagram 2B；
Fig. 3 is a kind of schematic diagram of touch device provided by Embodiment 2 of the present invention；
Fig. 4 A are a kind of schematic diagrames for touch device that the embodiment of the present invention three provides；
Fig. 4 B are the schematic diagrames of the on-off circuit for the touch device that the embodiment of the present invention three provides.
Specific embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Attached drawing and preferred embodiment, to the specific embodiment party according to touch device proposed by the present invention and the driving method of the touch device
Formula, structure, feature and its effect are described in detail as after.
For driving chip energy power limit in the prior art and its take into account touch-control and display scan function so that display blank
When time is far below touch-control sweep time, liquid crystal display device can not realize the problem of touch-control scanning is synchronous with display scanning,
The embodiment of the present invention provides a kind of touch device, achievees the purpose that touch-control scanning is synchronous with display scanning.
Fig. 1 is the schematic diagram for the touch device that the embodiment of the present invention one provides.The touch device bag that the present embodiment one provides
It includes：Touch control electrode layer 110, the gate electrode layer 120 and driving chip 130 being oppositely arranged with touch control electrode layer 110.
The touch control electrode 111 of touch control electrode layer 110 is divided at least two touch control electrode groups 112, is driven for receiving touch-control
Dynamic signal TP or common electrode signal VCOM.In the display stage, at least one touch control electrode group 112 receive touch-control drive signal into
Row touch-control scans, while remaining touch control electrode group 112 receives common electrode signal and carries out display scanning；During switching, touch-control scanning
At least one touch control electrode group 112 after finishing receives common electrode signal, while at least one in remaining touch control electrode group 112
A touch control electrode group 112 is switched to reception touch-control drive signal and remaining touch control electrode group 112 continues to public electrode letter
Number.At least one reception touch-control drive signal of touch control electrode group 112 TP, remaining touch control electrode group 112 receive public as shown in Figure 1
Electrode signal VCOM.Fig. 2A and Fig. 2 B are the two ways that touch control electrode layer 110 is scanned in the embodiment of the present invention one.It is given in Fig. 2A
The synchronous scanning mode that touch control electrode group 112 one by one carries out touch-control scanning is gone out.Two touch control electrode groups 112 are given in Fig. 2 B
Carry out the synchronous scanning mode of touch-control scanning.Those skilled in that art are it is understood that the side of scanning touch control electrode layer 110
Formula includes but not limited to both the above, and this will not be repeated here.
The gate electrode 121 of gate electrode layer 120 is divided into corresponds at least two grid set electricity with touch control electrode group 112
Pole group 122, for receiving scanning signal, simultaneously synchronism output scans feedback signal to each gate electrode 121.In the display stage, grid electricity
The gate electrode 121 of pole layer 120 receives scanning signal or receives scanning signal simultaneously by multirow line by line, the grid that each scanning is completed
121 synchronism output of electrode scans feedback signal.I-th of gate electrode group 122 is correspondingly arranged with i-th of touch control electrode group 112, jth
A gate electrode group 122 is correspondingly arranged with j-th of touch control electrode group 112.
Driving chip 130 is used to transmit scanning signal to gate electrode 121 successively in the display stage and receives scanning feedback letter
Number, when the scanning feedback signal for receiving n-th of gate electrode, 121 synchronism output in i-th of gate electrode group 122, control to
J-th of touch control electrode group 112 applies touch-control drive signal, while also controls to remaining touch control electrode group 112 and apply public electrode
Signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is the positive integer more than or equal to 1.Thus touch device is by dividing
The synchronous scanning mode of screen timesharing realizes that touch-control scanning is synchronous with display scanning.It should be noted that driving chip 130 may be used also
It controls at least two touch control electrode groups 112 and applies touch-control drive signal, while also control and apply to remaining touch control electrode group 112
Common electrode signal.
Fig. 2 C are that the driving chip 130 of corresponding diagram 2B controls the schematic diagram of synchronous scanning, with j-th, k-th of touch control electrode
Group 112 is carried out at the same time exemplified by touch-control scanning, and optional j is i-3, k i-1.As shown in the figure, first when in the 1st gate electrode group 122
The 1st gate electrode 121 output scanning feedback signal when, driving chip 130 is controlled to the 6th and the 4th touch control electrode group 112
Apply touch-control drive signal, while control to the 1st, the 2nd, the 3rd, the 5th touch control electrode group 112 and apply public electrode letter
Number, driving scans gate electrode 121 successively；When the 1st gate electrode 121 output scanning feedback signal in the 2nd gate electrode group 122
When, drive signal control control applies touch-control drive signal to the 1st and the 5th touch control electrode group 112, while controls to the 2nd
A, the 3rd, the 4th, the 6th application common electrode signal of touch control electrode group 112, scanning motion, Zhi Daoyi are synchronized with this
Frame display is completed.Those skilled in that art are appreciated that driving chip 130 controls the mode of synchronous scanning to include but not limited to
Above-mentioned specific example may also include other optional specific examples, and this will not be repeated here.
Optionally, the quantity of the touch control electrode 111 in each touch control electrode group 112 is equal.Optionally, each grid electricity
The quantity of gate electrode 121 in pole group 122 is equal.Optionally, the gate electrode 121 for receiving scanning signal is synchronous to driving chip
The scanning feedback signal of 130 outputs is sine wave signal.
Technical solution provided in an embodiment of the present invention, in the display stage, driving chip 130 transmits successively to gate electrode 121
Scanning signal simultaneously receives gate electrode 121 and scans feedback signal, when receiving n-th of gate electrode in i-th of gate electrode group 122
During the scanning feedback signal of 121 synchronism outputs, control to j-th of touch control electrode group 112 and apply touch-control drive signal, while also control
It makes to remaining touch control electrode group 112 and applies common electrode signal, thus touch device provided in this embodiment passes through split screen timesharing
Synchronous scanning mode realize touch-control scanning and display scanning it is synchronous.The technical solution does not limit the drive of driving chip 130
Kinetic force does not also limit the length of display blank time, as long as driving chip 130 takes into account touch-control and display function, by above-mentioned
The touch-control of touch device and the synchronous scanning of display can be realized in scheme, solves the dress of high definition more than liquid crystal display in the prior art
The problem of touch-control scanning is synchronous with display scanning can not be realized by putting.
Fig. 3 is a kind of schematic diagram of touch device provided by Embodiment 2 of the present invention.Optional setting in the present embodiment, driving
Chip 130 includes counting unit 140, for receiving the scanning feedback signal of 121 synchronism output of gate electrode, and counts sweeping for reception
Retouch feedback signal；Correspondingly, driving chip 130 be used for display the stage, when counting unit 140 count down to i-th of gate electrode group
During the scanning feedback signal that n-th of gate electrode 121 in 122 exports, control to j-th of touch control electrode group 112 and apply touch-control drive
Dynamic signal, while also control to remaining touch control electrode group 112 and apply common electrode signal.Specifically, the calculating of counting unit 140 connects
The quantity of the scanning feedback signal received, driving chip 130 control touch control electrode group according to the count number of counting unit 140
112 scan mode, such as switch at least one touch control electrode group 112 receive touch-control drive signal with carry out touch-control scanning and
The remaining touch control electrode group 112 of control receives common electrode signal to carry out display scanning.As described embodiment one kind, this reality
Apply the scanning feedback signal that driving chip 130 is exported according to gate electrode 121 in example, the scan mode of control touch control electrode group 112.
In the present embodiment driving chip 130 by the count number of counting unit 140 to the switching of 112 scan mode of touch control electrode group and
Control further enhances the reliability of driving chip 130, and user can also be configured counting unit 140, so that driving core
Piece 130 flexibly controls the switching mode of touch control electrode group 112, more conducively optimizes the function of driving chip 130.
Fig. 4 A are a kind of schematic diagram for touch device that the embodiment of the present invention three provides.Optional setting in the present embodiment is touched
Control device further includes：At least two on-off circuits 150, on-off circuit 150 are corresponded with touch control electrode group 112 and set；Switch
The first input end of circuit 150, the second input terminal, control terminal are electrically connected respectively with driving chip 130, for receiving driving respectively
Touch-control drive signal, common electrode signal and the control signal that chip 130 exports；The output terminal of on-off circuit 150 with it is corresponding
Each touch control electrode 111 of one touch control electrode group 112 is electrically connected, under control of the control signal, touch-control to be driven
Signal or common electrode signal are transmitted to each touch control electrode 111 of a corresponding touch control electrode group 112.Wherein, j-th
On-off circuit 150 corresponds to j-th of touch control electrode group 112, and i-th of on-off circuit 150 corresponds to i-th of touch control electrode group 112.It can
Choosing, on-off circuit 150 are single-pole double-throw switch (SPDT) circuit 150.The touch device of optional the present embodiment may also include and be counted shown in Fig. 3
Unit 140.
In the display stage, when n-th of gate electrode 121 that driving chip 130 is received in i-th of gate electrode group 122 is synchronous
During the scanning feedback signal of output, driving chip 130 need to control j-th of touch control electrode group 112 to receive touch-control drive signal, simultaneously
The remaining touch control electrode group 112 of control receives common electrode signal.Specifically, driving chip 130 is passed to j-th of on-off circuit 150
Defeated to control the control signal that is turned on output terminal of its first input end, then j-th of on-off circuit 150 transmits touch-control drive signal
To j-th of touch control electrode group 112；Meanwhile driving chip 130 controls its second input terminal to remaining each transmission of on-off circuit 150
The control signal turned on output terminal, then each on-off circuit 150 common electrode signal is transmitted to corresponding touch control electrode respectively
Group 112.Each on-off circuit 150 controls the scanning mode of each touch control electrode group 112 according to the control signal of driving chip 130, by
This touch device realizes that touch-control scanning is synchronous with display scanning.
In the present embodiment, driving chip 130 further includes：At least two first universal inputs/GPIO1 mouthfuls of output and one
Second universal input/GPIO2 mouthfuls of output；On-off circuit 150 with GPIO1 mouthful correspond settings, GPIO1 mouthfuls with corresponding switch
The control terminal connection of circuit 150, for by the control signal transmission of driving chip 130 to corresponding on-off circuit 150；GPIO2
Mouth is electrically connected with each touch control electrode 111, for the touch sense signals of touch control electrode 111 to be transmitted to driving chip 130.
Usual driving chip 130 has a certain number of GPIO mouthfuls, then according to GPIO1 mouthfuls in 130GPIO mouthfuls of driving chip of quantity into
Row touch control electrode layer 110, the division of gate electrode layer 120 and the setting of each on-off circuit 150 of progress.
Fig. 4 B are the schematic diagram of the on-off circuit 150 for the touch device that the embodiment of the present invention three provides.As shown in the figure, switch
The realization of ADG1219 chips, the ADG1219 built-in chip type single-pole double-throw switch (SPDT)s, including control terminal IN, first can be used in circuit 150
It is input terminal SA, the second input terminal SB, power supply Enable Pin EN, output terminal D, power voltage terminal VDD, power cathode end VSS, public
End.Wherein, first input end SA receives touch-control drive signal TX, the second input terminal SB that driving chip 130 transmits and receives driving
Chip 130 transmit common electrode signal VCOM, control terminal IN it is corresponding with driving chip 130 one GPIO1 mouthfuls connect with
Control signal is received, output terminal D is connected with every touch control electrode 111 of a corresponding touch control electrode group 112 with electric to the touch-control
Pole group 112 transmits touch-control drive signal or common electrode signal.Driving chip 130 exports the electricity of TX signals to on-off circuit 150
Road as shown in the figure, be no longer described in detail one by one herein.
Touch-control drive signal is transmitted to pair by the driving chip 130 of the present embodiment by GPIO mouthfuls of control on-off circuits 150
Common electrode signal is transmitted to corresponding touch control electrode group 112 by the touch control electrode group 112 or control on-off circuit 150 answered,
Driving chip 130 is realized touch-control scanning and shows the synchronous of scanning, touched by the independent control to each on-off circuit 150
It controls split screen on the display screen of device and performs touch-control scanning and display scanning, thus touch device provided in this embodiment passes through split screen
It is synchronous with display scanning that the synchronous scanning mode of timesharing realizes touch-control scanning.The technical solution does not limit driving chip 130
Driving force, also do not limit display blank time length, as long as driving chip 130 takes into account touch-control and display function, pass through
The touch-control of touch device and the synchronous scanning of display can be realized in said program, solves high definition more than liquid crystal in the prior art
Showing device can not realize the problem of touch-control scanning is synchronous with display scanning.
In the present embodiment, with the full HD liquid crystal display device (FHD) of S0554-R3-chip1-5.5 inches of model
Exemplified by illustrate the scan mode of touch device.5.5 inches of FHD use the driving chip of model ICN8500, share 1920
Gate line and labeled as G1~G1920,20 touch control electrodes and labeled as TX1~TX20.The driving chip shares 4 GPIO1
Mouthful and 1 GPIO2 mouthful, GPIO2 mouthful for touch-control sensing, GPIO2, which is connected to receive touch-control sensing with each touch control electrode, to be believed
Number, 4 GPIO1 mouthfuls are labeled as GPIO1-1~GPIO1-4 and are connected respectively with the control terminal IN of corresponding switch circuit, for touching
Control driving.
For be used for touch-control driving GPIO1-1~GPIO1-4 mouths, set the GPIO1 mouthfuls be 1 when control corresponding switch
Circuit output touch-control drive signal, the GPIO1 mouthfuls controls corresponding on-off circuit to export common electrode signal when being 0.According to this
GPIO1 mouthfuls of quantity is 4, then the viewing area of the FHD is divided into the control of 4th area, then touch control electrode layer is divided into 4 touch control electrodes
Group, gate electrode layer are divided into 4 gate electrode groups, 4 on-off circuits are provided in the FHD.Wherein, each touch control electrode group includes 5
Touch control electrode, each gate electrode group include 480 fence electrodes, and every touch control electrode corresponds to 96 fence electrodes, corresponding each
5 touch control electrodes of GPIO1 mouthfuls of correspondences and corresponding 480 fence electrodes.
Specifically, GPIO1-1 controlled by the 1st on-off circuit 5 articles of touch control electrode TX1 of the 1st touch control electrode group~
TX5；GPIO1-2 controls 5 articles of touch control electrode TX6~TX10 of the 2nd touch control electrode group by the 2nd on-off circuit；GPIO1-3
5 articles of touch control electrode TX11~TX15 of the 3rd touch control electrode group are controlled by the 3rd on-off circuit；GPIO1-4 passes through the 4th
On-off circuit controls 5 articles of touch control electrode TX16~TX20 of the 4th touch control electrode group.GPIO1-1 mouthfuls of corresponding gate electrode G1~
G480, GPIO1-2 mouthfuls of corresponding corresponding G961~G1440, GPIO1-4 mouthfuls of the gate electrodes of G481~G960, GPIO1-3 mouthfuls of gate electrode are right
Answer gate electrode G1441~G1920.Optional setting receives n-th in i-th of gate electrode group when the GPIO2 mouths of driving chip
During the scanning feedback signal of gate electrode synchronism output, control to j-th of touch control electrode group and apply touch-control drive signal, while also control
It makes to remaining touch control electrode group and applies common electrode signal, herein optional n=1, j=i-2.
While driving chip output gate electrode scanning signal, the counting unit of driving chip is scanned feedback signal
It counts.When counting unit is when being counted as 001, it is known that be that the 3rd group of i.e. touch control electrode TX11~TX15 of touch control electrode group is carried out
Touch-control scans, and display scanning is carried out to touch control electrode TX1~TX10, TX16~TX20, the GPIO1-1 of driving chip control at this time,
GPIO1-2, GPIO1-4 mouthfuls are 0 and to control GPIO1-3 mouthful be 1, be achieved in touch-control scanning and display scan it is synchronous.Work as meter
When being counted as 481 of counting unit, it is known that be that touch-control scanning is carried out to the 4th group of i.e. TX16~TX20 of touch control electrode group, to TX1~
TX15 carries out display scanning, and driving chip controls GPIO1-1, GPIO1-2, GPIO1-3 mouthfuls 0 and to control GPIO1-4 mouthfuls at this time
For 1, the synchronous of touch-control scanning and display scanning is achieved in.It cycles successively, until two field picture display is completed.Here, touch-control
There is interval between scanning and display scanning so that complementary interference.
It should be noted that can also be added on driving chip it is GPIO mouthfuls more, with according to GPIO mouthfuls of quantity divide
Touch control electrode layer and gate electrode layer.If adding GPIO mouthfuls more, control of the driving chip to single touch control electrode may be realized
System.
The embodiment of the present invention additionally provides a kind of driving method of touch device, on wherein touch device includes but not limited to
The touch device described in embodiment is stated, which includes：
Step 1: in the display stage, scanning signal is transmitted to the gate electrode of each gate electrode group of gate electrode layer successively,
And receive the scanning feedback signal of gate electrode synchronism output；
Step 2: when the scanning feedback signal for receiving n-th of gate electrode synchronism output in i-th of gate electrode group,
It controls to j-th of touch control electrode group and applies touch-control drive signal, while also control to remaining touch control electrode group and apply public electrode
Signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is the positive integer more than or equal to 1.Optionally receive scanning letter
Number gate electrode synchronism output scanning feedback signal be sine wave signal.
The driving method of the touch device synchronously carries out touch-control scanning and display scanning using the scan mode of split screen timesharing.
Scanning feedback signal can be sent after receiving scanning signal due to every row gate electrode, driving chip is to the scanning feedback signal
Step-by-step counting is carried out, according to step-by-step counting as a result, the scanning mode of each touch control electrode group of independent control so that touch device
Split screen synchronously carries out touch-control scanning and display scanning, is completed until a frame is shown.
The present embodiment is by using new scan mode so that when display blank time is far below touch-control sweep time, touches
Control can be normally carried out.The present embodiment makes touch-control scanning be swept with display by scanning feedback signal progress step-by-step counting to gate electrode
The difference working region retouched is more flexible and changeable, can not only realize the independent control of single group touch control electrode group, additionally it is possible to realize single
The independent control of root touch control electrode.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being without departing from technical solution of the present invention content, technical spirit pair according to the invention
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (8)
1. a kind of touch device, which is characterized in that including：
Touch control electrode layer, the touch control electrode of the touch control electrode layer is divided at least two touch control electrode groups, for receiving touch-control
Drive signal or common electrode signal；
The gate electrode layer being oppositely arranged with the touch control electrode layer, the gate electrode of the gate electrode layer are divided into and touch-control electricity
Pole group corresponds at least two gate electrode groups set, each described gate electrode is used to receive scanning signal and synchronism output
Scan feedback signal；
Driving chip, the driving chip include counting unit, and the counting unit is used to receive the gate electrode synchronism output
The scanning feedback signal, and the scanning feedback signal of reception is counted, correspondingly, the driving chip is for showing
Stage transmits scanning signal to the gate electrode successively and receives the scanning feedback signal, when the counting unit counts arrive
During the scanning feedback signal of n-th of gate electrode synchronism output in i-th of gate electrode group, control to described in j-th
Touch control electrode group applies the touch-control drive signal, while also controls to the remaining touch control electrode group and apply the public electrode
Signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is the positive integer more than or equal to 1.
2. touch device according to claim 1, which is characterized in that the touch-control in each described touch control electrode group
The quantity of electrode is equal.
3. touch device according to claim 1, which is characterized in that the gate electrode in each described gate electrode group
Quantity it is equal.
4. touch device according to claim 1, which is characterized in that the gate electrode for receiving the scanning signal is same
It is sine wave signal to walk the scanning feedback signal exported to the driving chip.
5. according to claim 1-4 any one of them touch devices, which is characterized in that the touch device further includes：At least
Two on-off circuits, the on-off circuit are corresponded with the touch control electrode group and set；
The first input end of the on-off circuit, the second input terminal, control terminal are electrically connected respectively with the driving chip, for dividing
Touch-control drive signal, common electrode signal and the control signal of the driving chip output are not received；The on-off circuit it is defeated
Outlet is electrically connected with each touch control electrode of the corresponding one touch control electrode group, in the control of the control signal
Under, the touch-control drive signal or the common electrode signal are transmitted to a corresponding touch control electrode group each
Touch control electrode.
6. touch device according to claim 5, which is characterized in that the driving chip further includes：At least two first
Universal input/GPIO1 mouthfuls of output and second universal input/GPIO2 mouthfuls of output；
The on-off circuit corresponds setting with described GPIO1 mouthful, described GPIO1 mouthfuls with the control of the corresponding on-off circuit
End processed connection, for by the control signal transmission of the driving chip to the corresponding on-off circuit；
Described GPIO2 mouthfuls is electrically connected with each touch control electrode, for the touch sense signals of the touch control electrode to be transmitted to
The driving chip.
7. a kind of driving method of touch device, the touch device is claim 1-6 any one of them touch devices,
It is characterized in that, including：
In the display stage, scanning signal is transmitted to the gate electrode of each gate electrode group of gate electrode layer successively, and described in reception
The scanning feedback signal of gate electrode synchronism output；
When counting unit counts to the scanning feedback letter of n-th of gate electrode synchronism output in i-th of gate electrode group
Number when, control to j-th of touch control electrode group and apply the touch-control drive signal, while also control to the remaining touch-control electricity
Pole group applies the common electrode signal, wherein, i=1,2 ...；J=1,2 ...；i≠j；N is just whole more than or equal to 1
Number.
8. driving method according to claim 7, which is characterized in that the gate electrode for receiving the scanning signal is same
The scanning feedback signal of step output is sine wave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810063.8A CN105260062B (en) | 2015-11-20 | 2015-11-20 | Touch device and its driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810063.8A CN105260062B (en) | 2015-11-20 | 2015-11-20 | Touch device and its driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105260062A CN105260062A (en) | 2016-01-20 |
| CN105260062B true CN105260062B (en) | 2018-05-18 |
Family
ID=55099777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510810063.8A Active CN105260062B (en) | 2015-11-20 | 2015-11-20 | Touch device and its driving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105260062B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502456B (en) * | 2016-10-31 | 2019-07-16 | 厦门天马微电子有限公司 | Display panel and its driving method, display device |
| CN110515498A (en) * | 2019-08-30 | 2019-11-29 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707480A (en) * | 2012-06-28 | 2012-10-03 | 旭曜科技股份有限公司 | Embedded multipoint touch control liquid crystal display panel system |
| CN103593083A (en) * | 2012-08-16 | 2014-02-19 | 乐金显示有限公司 | Display device having a touch screen and method of driving the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5766928B2 (en) * | 2010-09-29 | 2015-08-19 | 株式会社ジャパンディスプレイ | Display device with touch detection function and electronic device |
-
2015
- 2015-11-20 CN CN201510810063.8A patent/CN105260062B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707480A (en) * | 2012-06-28 | 2012-10-03 | 旭曜科技股份有限公司 | Embedded multipoint touch control liquid crystal display panel system |
| CN103593083A (en) * | 2012-08-16 | 2014-02-19 | 乐金显示有限公司 | Display device having a touch screen and method of driving the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105260062A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104423757B (en) | Touch integrated circuit and be integrated with the display device of the touch-screen using it | |
| CN103454800B (en) | Array base palte, touch-control display panel, display device and circuit drive method | |
| CN104932134B (en) | A kind of touch display substrate | |
| CN104731399B (en) | It is integrated with the display device and its driving method of touch-screen | |
| WO2020083041A1 (en) | Multi-screen instruction processing method used for intelligent full-screen blackboard and system thereof | |
| CN102393714B (en) | Own coding household electrical appliance control system based on ZigBee and realization method thereof | |
| CN106383624B (en) | A kind of array substrate, display panel and its driving method and display device | |
| CN104575413A (en) | Display Device and Method for Driving Same | |
| CN103914177B (en) | Mixing sensing touch panel device and the method for driving it | |
| CN103324363B (en) | Photoelectric signal process equipment, infrared touch panel | |
| CN206248953U (en) | Display panel and display device | |
| CN104461201A (en) | Touch display device and drive method thereof | |
| CN104679342B (en) | A kind of embedded touch screen and its driving method | |
| CN103871381B (en) | Time schedule controller and its driving method and the liquid crystal display device using the controller | |
| CN104460082A (en) | Liquid crystal display with touch function and touch detection method of liquid crystal display | |
| CN102645999B (en) | Touch control display apparatus | |
| CN202795299U (en) | Touch display device | |
| CN105260062B (en) | Touch device and its driving method | |
| CN103076888B (en) | A kind of method that USB keyboard calls OSD switching channels in KVM equipment and the equipment | |
| CN105867691B (en) | Touch-control display panel and its driving method, touching display screen | |
| CN103164061A (en) | Touch sensing device, touch sensing equipment and touch sensing method thereof | |
| CN106371677A (en) | Method and apparatus for enhancing touch sensing in a display panel | |
| CN104033094A (en) | Control method of electric roller shutter and electric roller shutter | |
| CN209055953U (en) | Photosensitive driving circuit and photosensitive device, electronic equipment | |
| CN209044568U (en) | Photosensitive driving circuit, photosensitive device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |