CN106020534A - Touch drive circuit, array substrate and a touch display device - Google Patents
Touch drive circuit, array substrate and a touch display device Download PDFInfo
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- CN106020534A CN106020534A CN201610310454.8A CN201610310454A CN106020534A CN 106020534 A CN106020534 A CN 106020534A CN 201610310454 A CN201610310454 A CN 201610310454A CN 106020534 A CN106020534 A CN 106020534A
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- pmos
- touch
- signal input
- control
- electrically connects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a touch drive circuit, an array substrate and a touch display device. The touch drive circuit comprises a plurality of scanning units and a plurality of selection output units which are cascaded, wherein each selection output unit is arranged corresponding to one scanning unit, and each selection output unit corresponds to a touch electrode; the scanning unit outputs a touch control signal to the corresponding selection output unit via a control signal output end, thus the selection output unit outputs a touch drive signal to the corresponding touch electrode within a touch time period according to the touch control signal, and outputs a common voltage signal to the corresponding touch electrode within a display time period; and the plurality of cascaded scanning units and selection output units are all made of PMOS tubes. According to the technical scheme provided by the invention, the narrow frame of the display device is prone to achieve, and the touch drive circuit can carry the PMOS panel and thus the MASK is saved.
Description
Technical field
The present embodiments relate to touch-control Display Technique, particularly relate to a kind of touch drive circuit, array base palte
And touch control display apparatus.
Background technology
Recently, along with the development of Display Technique, the application of display device is more extensive, existing display dress
Put the function typically all possessing touch-control, to be user-friendly to.
The existing display device possessing touch controllable function, typically uses complementary metal oxide semiconductors (CMOS)
(Complementary Metal Oxide Semiconductor, COMS) integrated circuit forms touch-control and drives electricity
Road, it is impossible to collocation PMOS panel uses, drive circuit is collectively constituted by NOMS pipe and PMOS, is being formed
Process needs multiple tracks metal level processing technology (MASK) to form COMS drive circuit.
Summary of the invention
The present invention provides a kind of touch drive circuit, array base palte and touch control display apparatus, to solve existing skill
In art, display device touch drive circuit cannot carry PMOS panel and the problem needing more MASK.
First aspect, embodiments provides a kind of touch drive circuit, and the multiple scannings including cascade are single
First and multiple selection output unit, each described selection output unit and a scanning element are correspondingly arranged, often
The corresponding touch control electrode of individual described selection output unit；
The control signal outfan of described scanning element electrically connects with the control end of described selection output unit, institute
State scanning element and export touch-control control signal by described control signal outfan to described selection output unit,
So that described selection output unit according to described touch-control control signal in the touch-control time period to corresponding touch control electrode
Output touch-control drives signal, and in the display time period to corresponding touch control electrode outputting common voltage signal,
Scanning element and the plurality of selection output unit of described cascade all use PMOS to make.
Second aspect, the embodiment of the present invention additionally provides a kind of array base palte, including viewing area with around institute
Stating the outer peripheral areas of viewing area, described outer peripheral areas is provided with the touch drive circuit in above-mentioned first aspect,
Described viewing area is provided with touch control electrode, and the selection corresponding with touch drive circuit of described touch control electrode is defeated
Go out the driving signal output part electrical connection of unit.
The third aspect, the embodiment of the present invention additionally provides a kind of touch control display apparatus, including above-mentioned second aspect
In the color membrane substrates that is oppositely arranged with described array base palte of array base palte and be positioned at described array base palte and institute
State the liquid crystal layer between color membrane substrates.
The scanning element of the cascade in touch drive circuit in the present invention all uses PMOS with selecting output unit
Tube device is made, and uses the touch drive circuit of COMS in hinge structure, by touching that PMOS is made
Control drive circuit can carry PMOS panel, and then the processing technology reducing making metal level i.e. saves MASK,
Cost-effective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first touch drive circuit that the embodiment of the present invention provides；
Fig. 2 a is the structural representation of the second touch drive circuit that the embodiment of the present invention provides；
Fig. 2 b is the structural representation of a kind of scanning element that the embodiment of the present invention provides；
Fig. 2 c is input signal and the outfan output letter of the input of the scanning element that the embodiment of the present invention provides
Number sequential chart；
Fig. 3 a is the structural representation of the third touch drive circuit that the embodiment of the present invention provides；
Fig. 3 b is a kind of structural representation selecting output unit that the embodiment of the present invention provides；
Fig. 3 c be the input signal of input selecting output unit that provides of the embodiment of the present invention and outfan defeated
Go out the sequential chart of signal；
Fig. 4 a is the structural representation of the 4th kind of touch drive circuit that the embodiment of the present invention provides；
Fig. 4 b is the sequential chart of scanning element work in a kind of Fig. 4 a that the embodiment of the present invention provides；
Fig. 5 is the structural representation of the 5th kind of touch drive circuit that the embodiment of the present invention provides；
Fig. 6 a is the structural representation of the first array base palte that the embodiment of the present invention provides；
Fig. 6 b is the structural representation of the second array base palte that the embodiment of the present invention provides；
Fig. 6 c is the structural representation of the third array base palte that the embodiment of the present invention provides；
Fig. 7 is the structural representation of a kind of display device that the embodiment of the present invention provides.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this
Specific embodiment described by place is used only for explaining the present invention, rather than limitation of the invention.The most also need
It is noted that for the ease of describing, accompanying drawing illustrate only part related to the present invention and not all knot
Structure.
The structural representation of the first touch drive circuit that Fig. 1 provides for the embodiment of the present invention.This touch-control drives
Galvanic electricity road 10 includes multiple scanning elements 11 and multiple selection output unit 12, each described selection of cascade
Output unit 12 is correspondingly arranged with a scanning element 11, corresponding one of each described selection output unit 12
Touch control electrode 13；
The control signal outfan of described scanning element 11 is electrically connected with the control end of described selection output unit 12
Connecing, described scanning element 11 is touched to the output of described selection output unit 12 by described control signal outfan
Control control signal so that described selection output unit 12 according to described touch-control control signal the touch-control time period to
Corresponding touch control electrode 13 exports touch-control and drives signal, and in the display time period to corresponding touch control electrode
13 outputting common voltage signals, scanning element 11 and the plurality of selection output unit 12 of described cascade are equal
Employing PMOS is made.
In the present embodiment, touch drive circuit can be integrated in touch control display apparatus, in touch control display apparatus
Public electrode be multiplexed with touch control electrode, select the output unit can be according to described touch-control control signal at touch-control
Time period drives signal to corresponding touch control electrode output touch-control, and in the display time period to corresponding touch-control
Electrode outputting common voltage signal, it is achieved touch-control and the multiplexing of display.Sweeping of cascade in touch drive circuit
Retouching unit and all use PMOS device to make with selecting output unit, the touch-control being made up of PMOS drives
Circuit can carry PMOS panel, and then the processing technology reducing making metal level i.e. saves MASK, joint
Cost-saving.
In the present embodiment, further, seeing Fig. 2 a, Fig. 2 a is the second that the embodiment of the present invention provides
The structural representation of touch drive circuit, described scanning element 11 include trigger signal input part IN, first
Clock signal input terminal CLK1, second clock signal input part CLK2, the 3rd clock signal input terminal CLK3,
Secondary triggering signal output part OUT3, the first control signal outfan OUT1 and the output of the second control signal
End OUT2；Wherein, the triggering signal input part of first order scanning element electrically connects with line trigger signal, removes
The signal input part that triggers of outer other grade of scanning element of the first order triggers signal with the secondary of upper level scanning element
Outfan electrically connects；
Described selection output unit 12 includes the first control signal input IN1, the second control signal input
IN2 and driving signal output part TOUT, described first control signal outfan OUT1 are controlled with described first
Signal input part IN1 processed electrically connects, and described second control signal outfan OUT2 controls letter with described second
Number input IN2 electrical connection；
Described scanning element is for according to described first clock signal input terminal, the input of described second clock signal
End and the clock signal of described 3rd clock signal input terminal input and described triggering signal input part input
Trigger signal and generate the first touch-control control signal, and generate the second touch-control control signal, described first touch-control
Control signal and described second touch-control control signal reverse signal each other；
Described selection output unit is for according to the first touch-control control from described first control signal input input
Signal processed, and the second touch-control control signal from described second control signal input input, when touch-control
Between section drive signal to corresponding touch control electrode output touch-control, and in the display time period to corresponding touch-control electricity
Pole outputting common voltage signal.Wherein, the driving signal output part of output unit is selected to be electrically connected with touch control electrode
Connect.
Further, the structure that Fig. 2 b, Fig. 2 b is a kind of scanning element that the embodiment of the present invention provides is seen
Schematic diagram, described scanning element 11 includes the first PMOS P1, the second PMOS P2, the 3rd PMOS
Pipe P3, the 4th PMOS P4, the 5th PMOS P5, the 6th PMOS P6, the 7th PMOS
Pipe P7, the first electric capacity C1, the second electric capacity C2, the first high level signal input VGH1 and the first low electricity
Flat signal input part VGL1；
The grid of described first PMOS P1 electrically connects with primary nodal point N1, the first end and secondary nodal point
N2 electrically connects, and the second end electrically connects with described first high level signal input VGH1；
The grid of described second PMOS P2 electrically connects with described second clock signal input part CLK2,
First end electrically connects with described secondary nodal point N2, and the second end electrically connects with described triggering signal input part IN；
The grid of described 3rd PMOS P3 electrically connects with described first clock signal input terminal CLK1,
First end electrically connects with described secondary nodal point N2, the second end and described first low level signal input VGL1
Electrical connection；
The grid of described 4th PMOS P4 electrically connects with described secondary nodal point N2, the first end and described the
One node N1 electrical connection, the second end electrically connects with described first high level signal input VGH1；
The grid of described 5th PMOS P5 electrically connects with described primary nodal point N1, and the first end is secondary with described
Level triggers signal output part OUT3 electrical connection, the second end and described first high level signal input VGH1
Electrical connection；
The grid of described 6th PMOS P6 electrically connects with the first end of described 7th PMOS P7, the
One end electrically connects with the described secondary signal output part OUT3 that triggers, and the second end is defeated with described 3rd clock signal
Enter and hold CLK3 to electrically connect；
The grid of described 7th PMOS P7 electrically connects with described first low level signal input VGL1,
First end electrically connects with the grid of described 6th PMOS P6, and the second end is electrically connected with described secondary nodal point N2
Connect；
First end of described first electric capacity C1 electrically connects with the first end of described 6th PMOS P6, and second
End electrically connects with the first end of described 7th PMOS P7；
First end of described second electric capacity C2 electrically connects with described primary nodal point N1, the second end and described first
High level signal input VGH1 electrically connects；
Described primary nodal point N1 electrically connects with described first control signal outfan OUT1, described second section
Point N2 electrically connects with described second control signal outfan OUT2.
Fig. 2 c is a kind of sequential chart of the output signal of the input signal of each input in Fig. 2 b and outfan.
In figure 2 c, STV is the triggering signal triggering signal input part IN input, and SCLK1 is the first clock letter
First clock signal of number input CLK1 input, SCLK2 is that second clock signal input part CLK2 is defeated
The second clock signal entered, SCLK3 is the 3rd clock signal of the 3rd clock signal input terminal CLK3 input.
The first high level signal input VGH1 in Fig. 2 b inputs a high level signal, and the first low level signal is defeated
Enter to hold defeated VGL1 to enter a low level signal.Next Fig. 2 b and Fig. 2 c is combined former to the work of scanning element
Reason is described further.
Seeing Fig. 2 b and Fig. 2 c, in the t11 stage, the first clock signal SCLK1 is low level, the 3rd PMOS
Pipe P3 turns on, and primary nodal point N1 current potential clamper is the current potential of the first low level signal input VGL1, for
Low level, the first PMOS P1 and the conducting of the 5th PMOS P5, now, the electricity of secondary nodal point N2
Position is the current potential of the first high level signal input VGH1, for high level, and the 4th PMOS P4 cut-off,
The grid of the 7th PMOS P7 and the first low level signal input VGL1 electrical connection, the 7th PMOS
Pipe P7 turns on all the time, the 6th PMOS P6 cut-off, and second clock signal SCLK2 is high level, the
Two PMOS P2 cut-offs.This stage, the end OUT1 output low level that the first control signal is defeated, second
Control signal outfan OUT2 exports high level.Due to the 5th PMOS P5 conducting, secondary triggering is believed
The current potential that current potential is the first high level signal input VGH1 of number outfan OUT3, secondary triggers signal
Outfan OUT3 exports high level.
In the t12 stage, the first clock signal SCLK1 is high level, the 3rd PMOS P3 cut-off, by
In the effect of the second electric capacity C2, the current potential of primary nodal point N1 does not changes, for low level, other PMOS
State consistent with t11 stage condition.This stage, the end OUT1 output low level that the first control signal is defeated,
Second control signal outfan OUT2 exports high level, and the secondary signal output part OUT3 of triggering exports high electricity
Flat.
In the t13 stage, the first clock signal SCLK1 is high level, the 3rd PMOS P3 cut-off, the
Two clock signals SCLK2 are low level, and triggering signal STV is low level, and the second PMOS P2 is led
Logical, secondary nodal point N2 is low level, the 4th PMOS P4 conducting, and primary nodal point N1 current potential is equal to the
The current potential of one high level signal input VGH1, for high level, the first PMOS P1 and the 5th PMOS
Pipe P5 ends, although the grid of this stage the 6th PMOS is low level, due to the 3rd clock signal
SCLK3 is high level, the 6th PMOS P6 cut-off.This stage, the end OUT1 that the first control signal is defeated
Output high level, the second control signal outfan OUT2 output low level, secondary triggering signal output part
OUT3 exports high level.
In the t14 stage, the first clock signal SCLK1 is high level, the 3rd PMOS P3 cut-off, the
Two clock signals SCLK2 are high level, and triggering signal STV is high level, and the second PMOS P2 is cut
Only, owing to the 7th PMOS P7 is constantly on, under the first electric capacity C1 effect, secondary nodal point N2 electricity
Invariant position, for low level, the state of other pipes is consistent with the t13 stage, and primary nodal point N1 is high level.
Now, the end OUT1 output high level that the first control signal is defeated, the second control signal outfan OUT2 is defeated
Going out low level, the secondary signal output part that triggers exports high level.
In the t15 stage, the 3rd clock signal SCLK3 is low level, due to this stage the 6th PMOS
The current potential of P6 grid is identical with secondary nodal point current potential, and for low level, the 6th PMOS P6 turns on, and first
Clock signal SCLK1 and second clock signal SCLK2 are high level, the state of other PMOS and t14
Stage is consistent.In this stage, the end OUT1 output high level that the first control signal is defeated, the second control signal is defeated
Going out to hold OUT2 output low level, due to the 6th PMOS P6 conducting, secondary triggering signal output part is defeated
Go out low level.
In the t16 stage, the 3rd clock signal SCLK3 is high level, the 6th PMOS P6 cut-off, its
The state of his PMOS is consistent with the t15 stage.This stage, the end OUT1 output that the first control signal is defeated
High level, the second control signal outfan OUT2 output low level.
The after-stage of t16, in scanning element, the state of pipe is consistent, no longer with the t11 stage with the current potential of node
Repeat.
In the present embodiment, further, see Fig. 3 a, Fig. 3 a be the embodiment of the present invention provide the third
The structural representation of touch drive circuit, described selection output unit 12 also includes for input the first switch letter
Number the first switch signal input end TXHSW, defeated for inputting the second switch signal of second switch signal
Enter to hold TXLSW, for inputting the first fixed level signal input part TXH of the first fixed level signal,
And the second fixed level signal input part TXL for input the second fixed level signal；
Wherein, described first switching signal and described second switch signal reverse signal each other.
Described selection output unit 12 according to described first touch-control control signal, described second touch-control control signal,
Described first switching signal, described second switch signal, described first fixed level signal and described second are solid
Determine level signal generate touch-control driving signal in the touch-control time period and export to corresponding touch control electrode 13, and
Public voltage signal is generated and to corresponding touch control electrode output in the display time period.
Further, seeing Fig. 3 b, described selection output unit includes the 8th PMOS P8, the 9th PMOS
Pipe P9, the tenth PMOS P10, the 11st PMOS P11, the 12nd PMOS P12, the tenth
Three PMOS P13, the 14th PMOS P14, the 15th PMOS P15, the 16th PMOS
Pipe P16, the 17th PMOS P17, the second high level signal input VGH2 and the second low level letter
Number input VGL2；
The grid of described 8th PMOS P8 electrically connects with described second control signal input IN2, the
One end electrically connects with the first end of described 9th PMOS P9, and the second end is defeated with described first switching signal
Enter and hold TXHSW to electrically connect；
The grid of described 9th PMOS P9 electrically connects with described first control signal input IN1, the
One end electrically connects with the first end of described 8th PMOS P8, the second end and described second low level signal
Input VGL2 electrically connects；
The grid of described tenth PMOS P10 electrically connects with described second control signal input IN2, the
One end electrically connects with the first end of described 11st PMOS P11, the second end and described second switch signal
Input TXLSW electrically connects；
The grid of described 11st PMOS P11 electrically connects with described first control signal input IN1,
First end electrically connects with the first end of described tenth PMOS P10, the second end and described second high level letter
Number input VGH2 electrical connection；
The grid of described 12nd PMOS P12 electrically connects with the first end of described 8th PMOS P8,
First end electrically connects with the first end of described 13rd PMOS P13, the second end and described second high level
Signal input part VGH2 electrically connects；
The grid of described 13rd PMOS P13 electrically connects with the first end of described tenth PMOS P10,
First end electrically connects with the first end of described 12nd PMOS P12, the second end and described second low level
Signal input part VGL2 electrically connects；
The grid of described 14th PMOS P14 electrically connects with the first end of described tenth PMOS 10,
First end electrically connects with the first end of described 15th PMOS P15, the second end and described second high level
Signal input part VGH2 electrically connects；
The grid of described 15th PMOS P15 electrically connects with the first end of described 8th PMOS P8,
First end electrically connects with the first end of described 14th PMOS P14, the second end and described second low level
Signal input part VGL2 electrically connects；
The grid of described 16th PMOS P16 is electrically connected with the first end of described 12nd PMOS P12
Connecing, the first end electrically connects with the first end of described 17th PMOS P17, and the second end is solid with described first
Determine level signal input TXH electrical connection；
The grid of described 17th PMOS P17 is electrically connected with the first end of described 14th PMOS P14
Connecing, the first end electrically connects with the first end of described 16th PMOS P16, and the second end is solid with described second
Determine level signal input TXL electrical connection；
Wherein, the first end of the 16th PMOS P16 and the first end of the 17th PMOS P17 are electrically connected
It is connected to drive signal output part TOUT.
Fig. 3 c is input signal and the output signal of outfan of each input selecting output unit in Fig. 3 b
A kind of sequential chart.In figure 3 c, CTX1 is the first touch-control of the first control signal input IN1 input
Control signal, the second touch-control control signal of CTX2 the second control signal input IN2 input, STXHSW
Being the first switching signal of the first switch signal input end TXHSW input, STXLSW is second switch letter
The second switch signal of number input TXLSW input, STXH is the first fixed level signal input part TXH
First fixed level signal of input, the second of STXL the second fixed level signal input part TXL input is solid
Determine level signal；The second high level signal input VGH2 in Fig. 3 b inputs a high level signal, and second
Low level signal input VGL2 inputs a low level signal.Next Fig. 3 b and Fig. 3 c are combined to scanning
The operation principle of unit is described further.
Being low level in the first touch-control control signal CTX1, the second touch-control control signal CTX2 is high level
Time, the 8th PMOS P8 and the cut-off of the tenth PMOS P10, the 9th PMOS P9 and the 11st
PMOS P11 turns on, the 12nd PMOS P12 grid and the electricity of the 15th PMOS P15 grid
The position current potential equal to the second low level signal input VGL2, for low level, the 12nd PMOS P12
With the 15th PMOS P15 conducting, the 13rd PMOS P13 grid and the 14th PMOS P14
The current potential of the grid current potential equal to the second high level signal input VGH2, for high level, the 13rd PMOS
Pipe P13 and the cut-off of the 14th PMOS P4, the 16th PMOS P16 grid potential is high equal to second
The current potential of level signal input VGH2, the 16th PMOS cut-off, the 17th PMOS P17
The grid potential current potential equal to the second low level signal input VGL2, for low level, the 17th PMOS
Pipe P17 turns on, the first end of the 17th PMOS P17 and the driving signal output part selecting output unit
TOUT electrically connects, and the signal selecting the driving signal output part TOUT output of output unit is solid equal to second
Determine level signal, for low level signal.
Being high level in the first touch-control control signal CTX1, the second touch-control control signal CTX2 is low level
Time, the 8th PMOS P8 and the conducting of the tenth PMOS P10, the 9th PMOS P9 and the 11st
PMOS P11 is ended, the 12nd PMOS P12 grid and the letter of the 15th PMOS P15 grid
Number it is the first switching signal, the 13rd PMOS P13 grid and the letter of the 14th PMOS P14 grid
Number it is second switch signal.
Owing to the first switching signal and second switch signal are the most contrary signal, in the first switching signal it is
High level, when second switch signal is low level, the 12nd PMOS P12 and the 15th PMOS
P15 ends, the 13rd PMOS P13 and the conducting of the 14th PMOS P14, the 16th PMOS
The P16 grid potential current potential equal to the second low level signal input VHL2, the 16th PMOS P16
Conducting, the 17th PMOS P17 grid potential current potential equal to the second high level signal input VGH2,
17th PMOS P17 cut-off, selects the signal of the driving signal output part TOUT output of output unit
For equal to the first fixed level signal, for high level signal.Being low level in the first switching signal, second opens
When OFF signal is high level, the 12nd PMOS P12 and the conducting of the 15th PMOS P15, the 13rd
PMOS P13 and the cut-off of the 14th PMOS P14, the 16th PMOS P16 grid potential is equal to
The current potential of the second high level signal input VGH2, the 16th PMOS P16 cut-off, the 17th PMOS
The pipe P17 grid potential current potential equal to the second low level signal input VGL2, the 17th PMOS P17
Conducting, the signal selecting the driving signal output part TOUT output of output unit is equal to the second fixed level
Signal, for low level signal.Being i.e. high level in the first touch-control control signal CTX1, the second touch-control controls
When signal CTX2 is low level, select output unit drivings signal output part TOUT output signal and
First fixed level signal is consistent.
When touch control electrode is multiplexed with public electrode, t21 correspondence display sweep phase, t22 correspondence touch-control scanning rank
Section.In the t21 stage, the first switch signal input end TXHSW and second switch signal input part can be made
The level signal that TXLSW input is stable, the first switch signal input end TXHSW and second switch signal
Input TXLSW does not input the pulse signal of touch-control scanning；In the t22 stage, defeated in the first control signal
Enter to hold IN1 the first touch-control control signal CTX1, apply the second touch-control at the second control signal input IN2
Control signal CTX2 at the first switch signal input end TXHSW and second switch signal input part
The pulse signal of TXLSW input touch-control scanning.In touch-control sweep phase, the first switching signal STXHSW
It is the most contrary pulse signal with second switch signal STXLSW.Certainly, touch control electrode is used independent
Time, the first touch-control can be inputted in all stage of t21+t22 at the first control signal input IN1 and control letter
Number CTX1, inputs the second touch-control control signal CTX2 at the second control signal input IN2, and first
Switch signal input end TXHSW and the pulse of second switch signal input part TXLSW input touch-control scanning
Signal.
It should be noted that the first fixed level signal STXH is fixed level, determine to select output unit
The high level size of touching signals outfan TOUT output；Second fixed level signal STXL is fixing electricity
Flat, and the height of the pulse signal of the pulsewidth of this high level and the input of the first switch signal input end TXHSW
Level pulsewidth is identical, determines to select the low level size of the touching signals outfan TOUT output of output unit,
And the low level of the pulse signal of this low level pulsewidth and second switch signal input part TXLSW input
Pulsewidth is identical.
The touch drive circuit being made up of scanning element and selection output unit in the present embodiment, scanning element
It is made up of PMOS with selection output unit, hinge structure uses the touch drive circuit of COMS,
The touch drive circuit simple in construction that the present embodiment provides, the negligible amounts of the metal-oxide-semiconductor of use, easily realize
The narrow frame of touch control display apparatus.In the present embodiment, seeing Fig. 4 a, Fig. 4 a is that the embodiment of the present invention provides
The structural representation of the 4th kind of touch drive circuit, touch drive circuit also includes the first clock cable
TX1, second clock holding wire TX2 and the 3rd clock cable TX3；
First clock signal input terminal of 3N+1 level scanning element and the first clock cable TX1 electrical connection,
The second clock signal input part of described 3N+1 level scanning element electrically connects with second clock holding wire TX2,
3rd clock signal input terminal of described 3N+1 level scanning element and the 3rd clock cable TX3 electrical connection；
First clock signal input terminal of 3N+2 level scanning element electrically connects with second clock holding wire TX2,
The second clock signal input part of 3N+2 level scanning element and the 3rd clock cable TX3 electrical connection, the
3rd clock signal input terminal of 3N+2 level scanning element and the first clock cable TX1 electrical connection；
First clock signal input terminal of 3N+3 level scanning element and the 3rd clock cable TX3 electrical connection,
The second clock signal input part of 3N+3 level scanning element and the first clock cable TX1 electrical connection, the
3rd clock signal input terminal of 3N+3 level scanning element electrically connects with second clock holding wire TX2；
Wherein, N is the integer more than or equal to zero.
Seeing Fig. 4 b, Fig. 4 b is first order scanning element in Fig. 4 a, second level scanning element and the third level
The input signal of each input of scanning element and a kind of sequential chart of the output signal of outfan.STV is for triggering
Triggering signal on holding wire, SCLK1 is the first clock signal on the first clock cable, SCLK2
For the second clock signal on second clock holding wire, SCLK3 is the 3rd clock on the 3rd clock cable
Signal, OUT13 is the signal that first order scanning element secondary triggers signal output part output, and OUT23 is the
Two grades of scanning element secondary trigger the signal of signal output part output, and OUT33 is that third level scanning element is secondary
Triggering the signal of signal output part output, OUT11 is the first control signal outfan of first order scanning element
Defeated signal, OUT12 is the signal that first order scanning element the second control signal outfan is defeated, OUT21
For the signal of second level scanning element the first control signal outfan output, OUT22 is second level scanning element
The signal of the second control signal outfan output, OUT31 is the output of third level scanning element the first control signal
The signal of end output, OUT32 is the signal of the second control signal outfan output of third level scanning element.
The operation principle of scanning element specifically refers to for Fig. 2 b and the description of Fig. 2 c, by circuit in Fig. 4 a
Annexation, higher level's scanning element selects output unit to provide control signal to this level, to control this grade of selection
Output unit generates touch-control in the touch-control time period and drives signal and to corresponding touch control electrode output, and aobvious
Show that the time period generates public voltage signal and to corresponding touch control electrode output.And provide for subordinate's scanning element
The secondary signal that triggers has triggered subordinate's scanning element work, it is possible to achieve the scanning step by step to touch control electrode, real
Existing touch control detection.
In the present embodiment, each selection output unit in touch drive circuit can be correspondingly arranged a scanning list
Unit, it is possible to arrange one at interval of i scanning element in the scanning element of cascade and select output unit pair
The scanning element answered, i is positive integer.Exemplary, seeing Fig. 5, Fig. 5 is that the embodiment of the present invention provides
The structural representation of the 5th kind of touch drive circuit, sets at interval of 1 scanning element in the scanning element of cascade
Put one with select scanning element corresponding to output unit, i.e. the 1st grade, 3rd level ..., 2n+1 level
Scanning element is correspondingly arranged selection output unit, and the 2nd grade, the 4th grade ..., 2n level scanning element
Being not provided with selecting output unit, n is integer.By changing the value of i, different choice output unit can be controlled
The touch-control of output drives the interval time between signal.
Seeing Fig. 6 a, the embodiment of the present invention also provides for a kind of array base palte, and this array base palte 20 includes viewing area
Territory 21 and the outer peripheral areas 22 around described viewing area, outer peripheral areas 22 is provided with above-mentioned touch-control and drives
Circuit 10, touch drive circuit includes that multiple scanning elements 11 of cascade and the selection corresponding with scanning element are defeated
Going out unit 12, described viewing area, 21 are provided with touch control electrode 24, and described touch control electrode 24 drives with touch-control
The driving signal output part electrical connection selecting output unit 12 corresponding in circuit 10.
Further, described touch control electrode 24 reusable is public electrode.
Seeing Fig. 6 b, in an embodiment of the present embodiment, array base palte 20 includes viewing area 21
With the outer peripheral areas 22 around described viewing area, outer peripheral areas 22 is provided with above-mentioned touch drive circuit
10, touch drive circuit includes that multiple scanning elements 11 of cascade and the selection corresponding with scanning element output are single
Unit 12, described viewing area 21 is provided with touch control electrode 24, described touch control electrode 24 and touch drive circuit
The driving signal output part electrical connection selecting output unit 12 corresponding in 10.Described touch drive circuit 10
It is arranged on first relative side 221 and second side 222 of described viewing area, is wherein positioned at described viewing area
The touch drive circuit 10 of the first side, territory 221, for driving odd number touch control electrode, is positioned at described viewing area
The touch drive circuit 10 of the second side, territory is for driving even number touch control electrode.Will touch drive circuit set
It is placed in the both sides in array substrate peripheral region, the touch-control driving electricity that touch display circuit side is arranged can be solved
Road cabling is too much, forms the problem that touch drive circuit is more difficult.
Seeing Fig. 6 c, in the another embodiment of the present embodiment, array base palte 20 includes viewing area
21 and outer peripheral areas 22 around viewing area, outer peripheral areas 22 is provided with above-mentioned touch drive circuit 10,
Touch drive circuit includes multiple scanning elements 11 of cascade and the selection output unit corresponding with scanning element
12, viewing area 21 is provided with touch control electrode 24, and touch control electrode 24 is corresponding with touch drive circuit 10
Select output unit 12 driving signal output part electrical connection.Touch drive circuit 10 is arranged on described aobvious
Showing first relative side 221 and second side 222 in region, each touch control electrode 14 is simultaneously by viewing area 21
The first relative side and the touch drive circuit 10 of the second side drive.Each touch control electrode is simultaneously by viewing area
The first relative side in territory and the touch drive circuit of the second side drive, and can strengthen and be applied in touch control electrode
Touch-control drive signal, solve monolateral driving drive signal attenuation problem, improve driving force.
See Fig. 7, the embodiment of the invention also discloses a kind of touch control display apparatus, including the various embodiments described above
In the color membrane substrates 30 that is oppositely arranged with array base palte 20 of array base palte 20 and be positioned at array base palte with color
Liquid crystal layer 40 between film base 30 plate.Wherein, described liquid crystal layer 40 includes multiple liquid crystal molecule 401.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row various obvious changes, readjust and substitute without departing from protection scope of the present invention.Therefore, though
So by above example, the present invention is described in further detail, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, it is also possible to include other Equivalent embodiments more,
And the scope of the present invention is determined by scope of the appended claims.
Claims (12)
1. a touch drive circuit, it is characterised in that include multiple scanning elements of cascade and multiple selection
Output unit, each described selection output unit and a scanning element be correspondingly arranged, and each described selection is defeated
Go out the corresponding touch control electrode of unit；
The control signal outfan of described scanning element electrically connects with the control end of described selection output unit, institute
State scanning element and export touch-control control signal by described control signal outfan to described selection output unit,
So that described selection output unit according to described touch-control control signal in the touch-control time period to corresponding touch control electrode
Output touch-control drives signal, and in the display time period to corresponding touch control electrode outputting common voltage signal,
Scanning element and the plurality of selection output unit of described cascade all use PMOS to make.
Touch drive circuit the most according to claim 1, it is characterised in that described scanning element includes
Trigger signal input part, the first clock signal input terminal, second clock signal input part, the 3rd clock signal
Input, secondary triggering signal output part, the first control signal outfan and the second control signal outfan；
Wherein, the triggering signal input part of first order scanning element electrically connects with line trigger signal, in addition to the first order its
The triggering signal input part of his level scanning element is electrically connected with the secondary signal output part that triggers of upper level scanning element
Connect；
Described selection output unit includes the first control signal input, the second control signal input and driving
Signal output part, described first control signal outfan electrically connects with described first control signal input, institute
State the second control signal outfan to electrically connect with described second control signal input；
Described scanning element is for according to described first clock signal input terminal, the input of described second clock signal
End and the clock signal of described 3rd clock signal input terminal input and described triggering signal input part input
Trigger signal and generate the first touch-control control signal, and generate the second touch-control control signal, described first touch-control
Control signal and described second touch-control control signal reverse signal each other；
Described selection output unit is for according to the first touch-control control from described first control signal input input
Signal processed, and the second touch-control control signal from described second control signal input input, when touch-control
Between section drive signal to corresponding touch control electrode output touch-control, and in the display time period to corresponding touch-control electricity
Pole outputting common voltage signal.
Touch drive circuit the most according to claim 2, it is characterised in that described selection output unit
Also include the first switch signal input end for inputting the first switching signal, for inputting second switch signal
Second switch signal input part, for input the first fixed level signal first fixed level signal input
End, and the second fixed level signal input part for input the second fixed level signal；
Wherein, described first switching signal and described second switch signal reverse signal each other；
Described selection output unit according to described first touch-control control signal, described second touch-control control signal,
Described first switching signal, described second switch signal, described first fixed level signal and described second are solid
Determine level signal and generate touch-control driving signal and to corresponding touch control electrode output, Yi Ji in the touch-control time period
The display time period generates public voltage signal and to corresponding touch control electrode output.
Touch drive circuit the most according to claim 3, it is characterised in that described scanning element includes
First PMOS, the second PMOS, the 3rd PMOS, the 4th PMOS, the 5th PMOS
Pipe, the 6th PMOS, the 7th PMOS, the first electric capacity, the second electric capacity, the first high level signal are defeated
Enter end and the first low level signal input；
The grid of described first PMOS electrically connects with primary nodal point, and the first end electrically connects with secondary nodal point, the
Two ends electrically connect with described first high level signal input；
The grid of described second PMOS electrically connects with described second clock signal input part, and the first end is with described
Secondary nodal point electrically connects, and the second end electrically connects with described triggering signal input part；
The grid of described 3rd PMOS electrically connects with described first clock signal input terminal, and the first end is with described
Secondary nodal point electrically connects, and the second end electrically connects with described first low level signal input；
The grid of described 4th PMOS electrically connects with described secondary nodal point, the first end and described primary nodal point electricity
Connecting, the second end electrically connects with described first high level signal input；
The grid of described 5th PMOS electrically connects with described primary nodal point, and the first end is believed with described secondary triggering
The electrical connection of number outfan, the second end electrically connects with described first high level signal input；
The grid of described 6th PMOS electrically connects with the first end of described 7th PMOS, the first end and institute
Stating the secondary signal output part that triggers to electrically connect, the second end electrically connects with described 3rd clock signal input terminal；
The grid of described 7th PMOS electrically connects with described first low level signal input, the first end and institute
Stating the grid electrical connection of the 6th PMOS, the second end electrically connects with described secondary nodal point；
First end of described first electric capacity electrically connects with the first end of described 6th PMOS, and the second end is with described
First end electrical connection of the 7th PMOS；
First end of described second electric capacity electrically connects with described primary nodal point, the second end and described first high level
Signal input part electrically connects；
Described primary nodal point electrically connects with described first control signal outfan, described secondary nodal point and described the
Two control signal outfan electrical connections.
Touch drive circuit the most according to claim 3, it is characterised in that described selection output unit
Including the 8th PMOS, the 9th PMOS, the tenth PMOS, the 11st PMOS, the tenth
Two PMOS, the 13rd PMOS, the 14th PMOS, the 15th PMOS, the 16th
PMOS, the 17th PMOS, the second high level signal input and the second low level signal input；
The grid of described 8th PMOS electrically connects with described second control signal input, the first end and institute
Stating the first end electrical connection of the 9th PMOS, the second end electrically connects with described first switch signal input end；
The grid of described 9th PMOS electrically connects with described first control signal input, the first end and institute
Stating the first end electrical connection of the 8th PMOS, the second end electrically connects with described second low level signal input；
The grid of described tenth PMOS electrically connects with described second control signal input, the first end and institute
Stating the first end electrical connection of the 11st PMOS, the second end electrically connects with described second switch signal input part；
The grid of described 11st PMOS electrically connects with described first control signal input, the first end with
First end electrical connection of described tenth PMOS, the second end is electrically connected with described second high level signal input
Connect；
The grid of described 12nd PMOS electrically connects with the first end of described 8th PMOS, the first end
Electrically connect with the first end of described 13rd PMOS, the second end and described second high level signal input
Electrical connection；
The grid of described 13rd PMOS electrically connects with the first end of described tenth PMOS, the first end
Electrically connect with the first end of described 12nd PMOS, the second end and described second low level signal input
Electrical connection；
The grid of described 14th PMOS electrically connects with the first end of described tenth PMOS, the first end
Electrically connect with the first end of described 15th PMOS, the second end and described second high level signal input
Electrical connection；
The grid of described 15th PMOS electrically connects with the first end of described 8th PMOS, the first end
Electrically connect with the first end of described 14th PMOS, the second end and described second low level signal input
Electrical connection；
The grid of described 16th PMOS electrically connects with the first end of described 12nd PMOS, and first
End electrically connects with the first end of described 17th PMOS, and the second end is defeated with described first fixed level signal
Enter end electrical connection；
The grid of described 17th PMOS electrically connects with the first end of described 14th PMOS, and first
End electrically connects with the first end of described 16th PMOS, and the second end is defeated with described second fixed level signal
Enter end electrical connection.
Touch drive circuit the most according to claim 2, it is characterised in that also include the first clock letter
Number line, second clock holding wire and the 3rd clock cable；
First clock signal input terminal of 3N+1 level scanning element and the electrical connection of the first clock cable, described
The second clock signal input part of 3N+1 level scanning element electrically connects with second clock holding wire, and described
3rd clock signal input terminal of 3N+1 level scanning element and the electrical connection of the 3rd clock cable；
First clock signal input terminal of 3N+2 level scanning element electrically connects with second clock holding wire, the
The second clock signal input part of 3N+2 level scanning element and the electrical connection of the 3rd clock cable, 3N+2 level
3rd clock signal input terminal of scanning element and the electrical connection of the first clock cable；
First clock signal input terminal of 3N+3 level scanning element and the electrical connection of the 3rd clock cable, the
The second clock signal input part of 3N+3 level scanning element and the electrical connection of the first clock cable, 3N+3 level
3rd clock signal input terminal of scanning element electrically connects with second clock holding wire；
Wherein, N is the integer more than or equal to zero.
Touch drive circuit the most according to claim 1, it is characterised in that the scanning list of described cascade
Arranging a scanning element corresponding with selecting output unit at interval of i scanning element in unit, i is positive integer.
8. an array base palte, including viewing area with around the outer peripheral areas of described viewing area, its feature
Being, described outer peripheral areas is arranged just like the touch drive circuit described in any one of claim 1-7, described
Viewing area is provided with touch control electrode, the selection output list that described touch control electrode is corresponding with touch drive circuit
The driving signal output part electrical connection of unit.
Array base palte the most according to claim 8, it is characterised in that described touch control electrode is multiplexed with public affairs
Common electrode.
Array base palte the most according to claim 8, it is characterised in that described touch drive circuit sets
Put in the first relative side of described viewing area and the second side, be wherein positioned at the first side, described viewing area
Touch drive circuit is for driving odd number touch control electrode, and the touch-control being positioned at the second side, described viewing area drives
Galvanic electricity road is for driving even number touch control electrode.
11. array base paltes according to claim 8, it is characterised in that described touch drive circuit sets
Putting in the first relative side of described viewing area and the second side, each touch control electrode is simultaneously by described viewing area
The first relative side in territory and the touch drive circuit of the second side drive.
12. 1 kinds of touch control display apparatus, it is characterised in that include the arbitrary described array of claim 8-11
Color membrane substrates that substrate is oppositely arranged with described array base palte and be positioned at described array base palte and described color film base
Liquid crystal layer between plate.
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| CN201610310454.8A CN106020534B (en) | 2016-05-11 | 2016-05-11 | A kind of touch drive circuit, array substrate and touch control display apparatus |
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| CN201610310454.8A CN106020534B (en) | 2016-05-11 | 2016-05-11 | A kind of touch drive circuit, array substrate and touch control display apparatus |
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| CN106020534B (en) | 2018-10-23 |
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