CN106681556B - Gate control circuit, display panel and display device - Google Patents
Gate control circuit, display panel and display device Download PDFInfo
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- CN106681556B CN106681556B CN201611241715.1A CN201611241715A CN106681556B CN 106681556 B CN106681556 B CN 106681556B CN 201611241715 A CN201611241715 A CN 201611241715A CN 106681556 B CN106681556 B CN 106681556B
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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
Abstract
This application discloses gate control circuit, display panel and display devices.Gate control circuit includes multiple gating control cells；Gating control cells include gate control signal input terminal, touch-control drive module, driver module and signal output end；Wherein, touch-control drive module includes first control signal input terminal, second control signal input terminal, first transmission gate and the second transmission gate, wherein, first control signal input terminal is connect with the input terminal of the first transmission gate, second control signal input terminal is connect with the input terminal of the second transmission gate, touch-control drive module is used under the collective effect of the signal of the signal and second control signal input terminal input of signal, the input of first control signal input terminal that gate control signal input terminal inputs, exports touch drive signal to signal output end；The gate control circuit can reduce the power consumption of each switch element, improve the stability of circuit.
Description
Technical field
This application involves field of display technology more particularly to gate control circuits, display panel and display device.
Background technique
Touch display screen is divided into self-tolerant touch display screen and mutual capacitance type touch display screen according to its touch-control principle.It is existing
Mutual capacitance type touch display screen usually utilizes touch-driven electrode and touch-control sensing electrode to form mutual capacitance, mutual when being touched by measurement
The variation of the quantity of electric charge detects touch point in capacitor.In the driving framework of the touch display screen of above-mentioned mutual capacitance type, need to design
Gate control circuit to provide touch detection signal to touch-driven electrode.Since touch detection signal is usually that low and high level is handed over
The square-wave signal replaced, in order to meet this demand, be usually provided in gate control circuit be used for transmission high level signal and
The two transistor NMOS tubes and PMOS tube of low level signal, and controlled by same signal input part to two transistor transmission
Signal.
However, in above-mentioned gate control circuit, it can be in two crystalline substances in the wherein moment of a transistor turns or shutdown
Perforation electric current is generated between body pipe, power consumption when which generate gate control circuit much larger than its normal work is accelerated
The stability of the supply voltage of input is influenced while the aging speed of each transistor.
Summary of the invention
In view of this, it is desired to be able to which a kind of improved gate control circuit, aobvious comprising above-mentioned gate control circuit is provided
Show panel and the display device comprising above-mentioned display panel, to solve the technical issues of background section above is mentioned.
In a first aspect, gate control circuit includes that multiple gating controls are single this application provides a kind of gate control circuit
Member；Wherein, gating control cells include gate control signal input terminal, touch-control drive module, driver module and signal
Output end；Wherein, touch-control drive module includes first control signal input terminal, second control signal input terminal, the first transmission gate
And second transmission gate, wherein first control signal input terminal is connect with the input terminal of the first transmission gate, and second control signal is defeated
Enter end to connect with the input terminal of the second transmission gate, signal of the touch-control drive module for inputting in gate control signal input terminal,
Under the collective effect of the signal of the signal and second control signal input terminal input of first control signal input terminal input, Xiang Xin
Number output end exports touch drive signal；Driver module includes display control signal input terminal, and display module is for selecting
Under the control of the signal of the signal and display control signal input terminal input of logical control signal input input, exported to signal
End output display signal.
Second aspect, this application provides a kind of display panel, display panel includes array substrate, and array substrate includes edge
Multiple first touch control electrodes and gate control circuit as described in relation to the first aspect of first direction arrangement；Gate control circuit
Signal output end connects one to one with the first touch control electrode.
The third aspect, this application provides a kind of display device, display device includes the display surface as described in second aspect
Plate.
Gate control circuit, display panel and display device provided by the present application, pass through the touch-control in gating control cells
Two input terminals of first control signal input terminal and second control signal input terminal are arranged in drive module to come to the first transistor
Transmission of control signals is distinguished with second transistor, so as to make other one in the case where wherein a transistor sufficiently turns off
A transistor turns avoid passing through same input terminal transmission of control signals and lead to the wink of one of transistor turns or shutdown
Between the reverse impulse voltage that generates act on another transistor, to improve the stability of circuit.
In the other embodiments of the application, the gate control signal of gating control cells can directly be controlled by integrated circuit
System, can save the design of shifting deposit unit, to simplify gate control circuit, reduce the occupied panel of driving circuit
Space is conducive to the design of narrow frame.
In some other embodiment of the application, by the way that first control signal input terminal and second control signal are inputted
Different timing is arranged in end, improves the flexibility of circuit.
Detailed description of the invention
Non-limiting embodiment is described in detail referring to made by the following drawings by reading, other features,
Objects and advantages will become more apparent upon:
Fig. 1 is the overall structure diagram of a gating control cells provided by the embodiments of the present application；
Fig. 2 is the electrical block diagram of a gating control cells provided by the embodiments of the present application；
Fig. 3 is the electrical block diagram of another gating control cells provided by the embodiments of the present application；
Fig. 4 is a working timing figure of gating control cells provided by the embodiments of the present application；
Fig. 5 is another working timing figure of gating control cells provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of one embodiment of gate control circuit provided by the embodiments of the present application；
Fig. 7 is the structural schematic diagram of another embodiment of gate control circuit provided by the embodiments of the present application；
Fig. 8 is the structural schematic diagram of a display panel provided by the embodiments of the present application；
Fig. 9 is the structural schematic diagram of another display panel provided by the embodiments of the present application；
Figure 10 is the structural schematic diagram of display device provided by the embodiments of the present application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to related invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The gate control circuit of the application includes multiple gating units, and Fig. 1 shows gating control electricity provided by the present application
The overall structure diagram of the embodiment of one gating control cells on road.
As shown in Figure 1, gating control cells 100 include gate control signal input terminal TXSEL, touch-control drive module 11,
Driver module 12 and signal output end OUT.
Touch-control drive module 11 include first control signal input terminal TX_SW1, second control signal input terminal TX_SW2,
First transmission gate C1 and the second transmission gate C2.Herein, the control terminal of the first transmission gate C1 and gate control signal input terminal
TXSEL electrical connection, the input terminal of the first transmission gate C1 are electrically connected with first control signal input terminal TX_SW1.Second transmission gate C2
Control terminal be electrically connected with gate control signal input terminal TXSEL, the input terminal and second control signal of the second transmission gate C2 is defeated
Enter TX_SW2 is held to be electrically connected.In some embodiments, above-mentioned transmission gate can be NMOS transmission gate, cmos transmission gate etc..
Signal that touch-control drive module 11 is used to input in gate control signal input terminal TXSEL, first control signal are defeated
Under the collective effect of the signal for signal and second control signal input terminal the TX_SW2 input for entering to hold TX_SW1 to input, to signal
Output end OUT exports touch drive signal.
Driver module further includes display control signal input terminal VSEL, and driver module 12 is used to control in gating
Under the collective effect of the signal of the signal and display control signal input terminal VSEL input of signal input part TXSEL input, to
Signal output end OUT output display signal.
Signal output end OUT can be connect with the touch-driven electrode in array substrate, touch-control drive module 11 and display
Drive module 12 is respectively in touch control detection stage and display stage work.In the touch control detection stage, touch-control drive module 11 is being selected
The signal of logical control signal input TXSEL input, the signal of first control signal input terminal TX_SW1 input, the second control letter
It is enabled under the control of the signal of number input terminal TX_SW2 input, signal output end OUT is to touch-driven electrode output touch-control scanning
Signal, at this moment, touch-driven electrode receive touch scanning signals.In the display stage, driver module 12 is in gating control letter
It is enabled under the control of the signal of the signal and display control signal input terminal VSEL input of number input terminal TXSEL input, signal
Output end OUT exports display signal to touch-driven electrode, and at this moment, touch-driven electrode is mentioned as public electrode for array substrate
For the public voltage signal needed for showing.
In the present embodiment, a gating control cells 100 can be a pair of with the touch-driven electrode one in array substrate
It should connect.
The present embodiment is arranged first control signal by the input terminal of the gating control module in gating control cells and inputs
End and two control signal inputs of second control signal input terminal can be reduced in gating control module internal signal switching
During generate by turn off component flow direction conducting component perforation electric current, reduce power consumption.
The detailed circuit framework of gating control cells provided by the present application is described in detail below in conjunction with Fig. 2 to Fig. 3.
Referring to FIG. 2, it illustrates the signals of the circuit structure of one embodiment of gating control cells provided by the present application
Figure.
As shown in Fig. 2, gating control cells 200 include touch-control drive module 21, driver module 22, the first phase inverter
Q1, gate control signal input terminal TXSEL, signal output end OUT and the first constant voltage signal input terminal VGL.Touch-control drives mould
Block 21 includes the first transmission gate C1, the second phase inverter Q2, the first transistor M1, second transistor M2, first control signal input
Hold TX_SW1, the first touch-control voltage signal inputs TXH.The input terminal of first phase inverter Q1 is connected to gate control signal input
Hold TXSEL.Herein, the first transmission gate C1 includes two control terminals, i.e. the first control terminal and the second control terminal, wherein first passes
Defeated door C1 forms cmos transmission gate by two transistors with different conductor channel, i.e. PMOS tube and NMOS tube, wherein NMOS
First pole of pipe and PMOS tube, which links together, forms the input terminal of transmission gate C1, and the second pole of NMOS tube and PMOS tube connects
It is connected together and forms the output end of transmission gate C1, the grid of NMOS tube is connected to gate control signal input as the first control terminal
TXSEL is held, the grid of PMOS tube is connected to the output end of the first phase inverter Q1 as the second control terminal, and the first transmission gate C1's is defeated
Enter end and be connected to first control signal input terminal TX_SW1, the output end of the first transmission gate C1 is connected to the defeated of the second phase inverter Q2
Enter end.The output end of second phase inverter Q2 is connected to the grid of the first transistor M1, and the first pole of the first transistor M1 is connected to
The second pole of first touch-control voltage signal inputs TXH, the first transistor M1 is connected to signal output end OUT.Second transistor
The second pole that the first pole of M2 is connected to the first constant voltage signal input terminal VGL, second transistor M2 is connected to the first transmission gate C1
Output end, the grid of second transistor M2 is connected to the output end of the first phase inverter Q1 or the grid of second transistor M2
It is connected to gate control signal input terminal TXSEL, when the grid of second transistor M2 is connected to the output end of the first phase inverter Q1
When, second transistor M2 is NMOS transistor, when the grid of second transistor M2 is connected to gate control signal input terminal TXSEL
When, second transistor M2 is PMOS transistor.In the present embodiment, the grid of second transistor M2 is connected to the first phase inverter Q1
Output end, i.e., second transistor be NMOS transistor.
Touch-control drive module 21 further includes the second transmission gate C2, third phase inverter group Q3, third transistor M3, the 4th crystal
Pipe M4, the second constant voltage signal input terminal VGH and the second touch-control voltage signal inputs TXL.Second transmission gate C2 includes two
Control terminal, i.e. the first control terminal and the second control terminal, the second transmission gate C2 are made of two transistor PMOS tube and NMOS tube
Cmos transmission gate, wherein the first pole of NMOS tube and PMOS tube, which links together, forms the input terminal of transmission gate C1, NMOS tube
And the second pole of PMOS tube links together and forms the output end of transmission gate C1, the grid of NMOS tube connects as the first control terminal
It is connected to gate control signal input terminal TXSEL, the grid of PMOS tube is connected to the defeated of the first phase inverter Q1 as the second control terminal
Outlet, the input terminal of the second transmission gate C2 are connected to second control signal input terminal TX_SW2, the output end of the second transmission gate C2
It is connected to the input terminal of third phase inverter group Q3.The output end of third phase inverter group Q3 is connected to the grid of third transistor M3,
The first pole of third transistor M3 is connected to the second pole connection of the second touch-control voltage signal inputs TXL, third transistor M3
To signal output end OUT.The first pole of 4th transistor M4 is connected to the second constant voltage signal input terminal VGH, the 4th transistor M4
The second pole be connected to the output end of the second transmission gate C2, the grid of the 4th transistor M4 is connected to gate control signal input terminal
The grid of TXSEL or the 4th transistor M4 are connected to the output end of the first phase inverter Q1, when the grid of the 4th transistor M4 connects
When being connected to the output end of the first phase inverter Q1, the 4th transistor M4 is NMOS transistor, when the grid of the 4th transistor M4 connects
When to gate control signal input terminal TXSEL, the 4th transistor M4 is PMOS transistor.In the present embodiment, the 4th transistor
The grid of M4 connects gate control signal input terminal TXSEL, i.e. the 4th transistor M4 is PMOS transistor.
Herein, the signal of the first constant voltage signal input terminal VGL input is low level signal, the second constant voltage signal input terminal
The signal of VGH input is high level signal, and third phase inverter group Q3 includes m cascade phase inverters, and wherein m is positive integer, In
In the present embodiment, third phase inverter includes even number of inverters, it can is 2,4 etc., the present embodiment is shown schematically
Two phase inverters.The first transistor M1 and third transistor M3 can have identical channel type, i.e., all can be PMOS
Transistor.
First transmission gate C1 on or off based on the signal that gate control signal input terminal TXSEL is inputted, first passes
Signal when defeated door C1 is connected by first control signal input terminal TX_SW1 input is transmitted to first crystal through the second phase inverter Q2
Pipe M1, and the on or off of the first transistor M1 is controlled, when the first transistor M1 conducting, the input of the first touch-control voltage signal
The high level signal of end TXH input is transmitted to signal output end OUT.Second transmission gate C2 is based on gate control signal input terminal
TXSEL input signal and on or off, the second transmission gate C2 be connected when by second control signal input terminal TX_SW2 input
Signal be transmitted to third transistor M3 after third phase inverter group Q3, and control the on or off of third transistor M3, when
When third transistor M3 is connected, the low level signal of the second touch-control voltage signal inputs TXL input is transmitted to signal output end
OUT。
Driver module 22 includes third transmission gate C3, the 4th phase inverter Q4, the 5th transistor M5, the 6th transistor
M6, display control signal input terminal VSEL and public voltage signal input terminal VCOM.Third transmission gate C3 includes two controls
End, i.e. the first control terminal and the second control terminal, further include an input terminal and an output end, third transmission gate C3 is by two
Transistor PMOS tube and NMOS tube compose in parallel, and wherein the grid of PMOS tube is connected to gate control signal as the first control terminal
Input terminal TXSEL, the grid of NMOS tube are connected to the output end of the first phase inverter Q1, third transmission gate C3 as the second control terminal
Input terminal be connected to display control signal input terminal VSEL, the output end of third transmission gate C3 is connected to the 4th phase inverter Q4's
Input terminal.The grid of 5th transistor M5 is connected to the output end of the 4th phase inverter Q4, the first pole connection of the 5th transistor M5
To public voltage signal input terminal VCOM, the second pole of the 5th transistor M5 is connected to signal output end OUT.6th transistor M6
The first pole be connected to first voltage signal input part VGL, the second pole of the 6th transistor M6 is connected to third transmission gate C3's
Output end, the grid of the 6th transistor M6 are connected to gate control signal input terminal TXSEL.
Third transmission gate C3 on or off based on the signal that gate control signal input terminal TXSEL is inputted, works as third
When transmission gate C3 is connected, the signal of display control signal input terminal input is transmitted to the 5th crystalline substance after the 4th phase inverter Q4 reverse phase
Body pipe M5 controls the on or off of the 5th transistor M5, when the 5th transistor M5 conducting, public voltage signal input terminal
Public voltage signal is transmitted to signal output end OUT by VCOM.
In the present embodiment, the first transistor M1 and third transistor M3 can in touch detection stage alternate conduction, with
Touch scanning signals are provided to touch-driven electrode, the 5th transistor M5 is in the conducting of display stage, to pass to touch-driven electrode
Defeated public voltage signal.Specifically, touch-control can be gated by gate control signal input terminal TXSEL in the touch detection stage
Drive module 21, and driver module 22 is closed, it is defeated according to first control signal input terminal TX_SW1 and second control signal
The signal for entering to hold TX_SW2 to input successively controls the first transistor M1 and third transistor M3 conducting, thus by the first touch-control voltage
The high level signal of signal input part TXH input and the low level signal alternating of the second touch-control voltage signal inputs TXL input
It is provided to touch-driven electrode.In the display stage, touch-driven electrode can be multiplexed with public electrode, pass through gate control signal
Input terminal gates driver module 22, closes touch-control drive module 21, the letter that public voltage signal input terminal VCOM is inputted
Number it is transmitted to touch-driven electrode.
Referring to FIG. 3, it illustrates the circuit structures of another embodiment of gating control cells provided by the present application to show
It is intended to.
As shown in figure 3, gating control cells 300 include touch-control drive module 31, driver module 32, the first phase inverter
Q1, gate control signal input terminal TXSEL, signal output end OUT and the first constant voltage signal input terminal VGL.Touch-control drives mould
Block 31 includes the first transmission gate C1, the second phase inverter Q2, the first transistor M1, second transistor M2, the first touch-control voltage signal
Input terminal TXH, the second transmission gate C2, third phase inverter group Q3, third transistor M3, the 4th transistor M4, first control signal
Input terminal TX_SW1, second control signal input terminal TX_SW2, the second constant voltage signal input terminal VGH and the second touch-control voltage letter
Number input terminal TXL.Driver module 32 includes third transmission gate C3, the 4th phase inverter Q4, the 5th transistor M5, the 6th crystal
Pipe M6, display control signal input terminal VSEL and public voltage signal input terminal VCOM.
Unlike embodiment shown in Fig. 2, in the present embodiment, 31 third phase inverter group Q3 packet of touch-control drive module
Include odd number phase inverter.Optionally, above-mentioned third phase inverter group Q3 includes a phase inverter, so, with third phase inverter
The third transistor M3 of group Q3 connection can be NMOS transistor, or PMOS transistor.Third phase inverter group Q3 simultaneously
One phase inverter can be only set, the number of the component in gating control cells 300 is reduced, while improving the flexible of circuit
Property.
Referring to FIG. 4, it illustrates a working timing figures of gating control cells provided by the present application.In conjunction with Fig. 2 institute
The gating control cells 200 shown, are further elaborated the working principle of gating control cells.As shown in figure 4, TX_SW1
Indicate that the signal of first control signal input terminal TX_SW1 input, TX_SW2 indicate second control signal input terminal TX_SW2 input
Signal, TXSEL_n and TXSEL_n+1 respectively indicate the signal and the of n-th of gate control signal input terminal TXSEL input
The signal of n+1 gate control signal input terminal TSSEL input, TX_n and TX_n+1 respectively indicate n-th of gating control cells
With the signal of the signal output end OUT output of (n+1)th gating control cells, namely n-th of touch control electrode of expression and (n+1)th
The signal that touch control electrode receives.
As shown in figure 4, providing the first pulse letter to first control signal input terminal TX_SW1 in touch detection stage T41
Number, the second pulse signal is provided to second control signal input terminal TX_SW2, controls letter to the gating of n-th of gating control cells
Number input terminal TXSEL_n provides high level signal VH.At this point, the driver module 22 of n-th of gating control cells 200 closes
Disconnected, the touch-control drive module 21 of n-th of gating control cells 200 is opened, and the first transmission gate C1 and the second transmission gate C2 exist at this time
It is connected under the action of the high level signal of gate control signal input terminal TXSEL_n input, first control signal input terminal TX_
First pulse signal of SW1 input is transmitted to the second phase inverter Q2 by the first transmission gate C1, which passes through the second phase inverter
Low level signal is acted on to the grid of the first transistor M1, the first transistor M1 is connected at this time, and first is touched after Q2 reverse phase
The high level signal of control signal input part TXH input is transmitted to signal output end OUT.Meanwhile second control signal input terminal TX_
Second pulse signal of SW2 input is transmitted to the input terminal of third phase inverter group Q3 by the second transmission gate C2, which passes through
Low level signal is acted on the grid of third transistor M3, third transistor M3 conducting, the second touch-control by third phase inverter group Q3
The low level signal of signal input part TXL input is transmitted to signal output end OUT by third transistor M3.In this way, n-th of choosing
The signal output end OUT of logical control unit 200 alternately exports low and high level signal.
Figure 4, it is seen that in touch detection stage T41, the control of first control signal input terminal TX_SW1 and second
Signal input part TX_SW2 is alternately produced pulse signal.Herein, the first pulse signal and the second pulse signal are inversion signal,
The rising edge of second pulse signal of second control signal input terminal TX_SW2 input is relative to first control signal input terminal TX_
The failing edge of first pulse signal of SW1 input has to certain delay, i.e. the first pulse signal and the second pulse signal have
There is different timing, so, in the case where the first transistor M1 is complete switched off, then opens third transistor M3, avoid
Due to the first transistor M1 and third transistor M3 simultaneously turn on so that signal output end receive simultaneously high level signal and
Low level signal is so as to cause circuit disorder.By working sequence as shown in Figure 4, the stability of circuit can be increased.
T41 in the first stage is provided to the gate control signal input terminal TXSEL_n+1 of (n+1)th gating control cells
Low level signal, at this time (n+1)th gating control under the control of the low level signal of gate control signal input terminal TXSEL_n+1
The touch-control drive module 21 of unit 200 processed is closed, and driver module 22 is enabled, the third of (n+1)th gating control cells 200
The signal of transmission gate C3 conducting, display control signal input terminal VSEL input is transmitted to the 5th transistor M5 by phase inverter, public
The public voltage signal of common voltage signal input part VCOM input is transmitted to signal output end OUT by the 5th transistor M5,
I.e. (n+1)th touch control electrode TX_n+1 receives the public voltage signal needed for display.
In second stage T42, to first control signal input terminal TX_SW1, second control signal input terminal TX_SW2 and choosing
Logical control signal input TXSEL_n, TXSEL_n+1 provides low level signal VL, at this moment, n-th of 200 He of gating control cells
The the first transmission gate C1 and the second transmission gate C2 of (n+1)th gating control cells 200 are turned off, gating signal input terminal TX_
The low level signal VL of SEL_n, TX_SEL_n+1 input is transmitted to the 4th transistor M4, while after the first phase inverter Q1 reverse phase
High level signal is transmitted to second transistor M2, second transistor M2 and the 4th transistor M4 conducting, the first constant voltage signal
The low level signal of input terminal VGL input is transmitted to the input terminal of the second phase inverter Q2 by the 4th transistor M4, and through second
The first transistor M1 is acted on after phase inverter Q2 reverse phase, the second constant voltage signal input terminal VGH is brilliant by the 4th by high level signal
Body pipe M4 is transmitted to the input terminal of third phase inverter group Q3, and acts on third transistor M3 by third phase inverter group Q3, by
It is PMOS transistor in the first transistor M1, third transistor M3, therefore the first transistor M1 and third transistor M3 is in
The touch-control drive module 21 of abundant off state, n-th of gating control cells 200 and (n+1)th gating control cells 200 is closed
It closes.
The driver module 22 in gating control cells 200 is enabled at this time, and third transmission gate C3 is in gate control signal
The height for being connected under the action of the low level signal VL of input terminal TXSEL input, and display control signal input terminal VSEL being inputted
Level signal is transmitted to the input terminal of the 4th phase inverter Q4, and the high level signal is after the 4th phase inverter Q4 reverse phase by low level
Signal function is connected in the 5th transistor M5, the 5th transistor M5, the common voltage of public voltage signal input terminal VCOM input
Signal is transmitted to signal output end OUT by the 5th transistor M5, i.e., each touch-driven electrode is used as public electrode to receive at this time
To the public voltage signal for display.
In phase III T43, the first pulse signal is provided to first control signal input terminal TX_SW1, to the second control letter
Number input terminal TX_SW2 provides the second pulse signal, to the gate control signal input terminal of n-th of gating control cells 200
TXSEL provides low level signal VL, provides to the gate control signal input terminal TXSEL of (n+1)th gating control cells 200 high
Level signal VH, the touch-control drive module 21 of n-th of gating control cells 200 is closed at this time, n-th of gating control cells 200
Driver module 22 be now in working condition, i.e., it is corresponding with the signal output end OUT of n-th of gating control cells 200
Touch-driven electrode receive the public voltage signal for display.
The working principle of the touch-control drive module 21 of (n+1)th gating control cells 200 and n-th gating control cells
The working principle of touch-control drive module 21 is identical, and with specific reference to the working principle in T41 stage, details are not described herein.
It is closed in the touch-control drive module 21 of fourth stage T44, (n+1)th each gating control cells 200, each gating control is single
The driver module of member 200 is enabled, and specific working method is identical as the working method in T42 stage, and details are not described herein.
Can be seen that gating control cells provided by the embodiments of the present application by working sequence shown in Fig. 4 can be to each touching
Control driving electrodes carry out display driving and touch-control driving.In the display stage, gating control cells can be mentioned to touch-driven electrode
For public voltage signal touch scanning signals successively can be provided to each touch-driven electrode in multiple touch detection stages.
Referring to FIG. 5, it illustrates another working timing figures of gating control cells provided by the present application.
In conjunction with Fig. 3, the working principle of gating control cells 300 is further elaborated.In gating control cells 300
In, third phase inverter group Q3 includes odd number phase inverter, and third transistor M3 is PMOS transistor.
In the T51 stage, handed over respectively to first control signal input terminal TX_SW1 and second control signal input terminal TX_SW2
For the first pulse signal is provided, high level is provided to n-th of 300 gate control signal input terminal TXSEL_n of gating control cells
Signal VL, the first transmission gate C1 is connected with the second transmission gate C2 at this time, and the first of first control signal input terminal TX_SW1 input
Pulse signal and second control signal input terminal TX_SW2 input the first pulse signal control respectively the first transistor M1 and
Third transistor M3 is turned on and off, and the high level signal and the second touching signals of the first touching signals input terminal TXH input are defeated
To signal output end OUT, i.e. n-th of touch-driven electrode timesharing receives the low level signal time sharing transmissions for entering to hold TXL to input
High level signal and low level signal are as touch drive signal.Wherein, the of second control signal input terminal TX_SW2 input
One pulse signal has certain delay relative to first control signal input terminal TX_SW1 the first pulse signal inputted, to protect
In the case that card the first transistor M1 is sufficiently turned off, second transistor M2 is connected.
In the T51 stage, provided to the gate control signal input terminal TXSEL_n+1 of (n+1)th gating control cells 300 low
Level signal VL, the drive control module 31 of (n+1)th gating control cells 300 turns off at this time, and driver module 32 exists
It enables under the control of the low level signal VL of gate control signal input terminal TXSEL_n+1 input, is transmitted to signal output end OUT
Public voltage signal.
In T52 stage and T54 stage, to first control signal input terminal TX_SW1, second control signal input terminal TX_
SW2, gate control signal input terminal TXSEL_n, TXSEL_n+1 provide low level signal VL, working method with it is shown in Fig. 4
The display stage working method of T41 and T43 is identical, and details are not described herein.
In the T53 stage, the touch-control drive module of (n+1)th touch-control driving unit 300 is enabled, and (n+1)th touch-control drives at this time
The output end OUT timesharing output high level signal of moving cell and low level signal, (n+1)th touch-driven electrode timesharing at this time connect
High level signal and low level signal are received as touch scanning signals, concrete operating principle is referring to T51 working stage, herein not
It repeats again.
From fig. 5, it can be seen that unlike working sequence corresponding to gating control cells 200 shown in Fig. 4, touch-control
The signal and second control signal of the corresponding working sequence first control signal input terminal TX_SW1 of driving unit 300 input input
The signal for holding TX_SW2 input is the identical direct impulse signal of amplitude, is driven such as by working sequence as shown in Figure 5
Gating control cells 300 shown in Fig. 3, it is possible to reduce the number of phase inverter in gating control cells simplifies circuit.
With continued reference to Fig. 6, it illustrates the circuit structures of another embodiment of gate control circuit provided by the present application
Schematic diagram.
In the present embodiment, gate control circuit 600 includes N number of gating control cells 611,612,613 ..., further includes N
Cascade shifting deposit unit 621,622,623 ..., wherein each gating control cells 611,612,613 ... include the first control
Signal input part TX_SW1, second control signal input terminal TX_SW2, display control signal input terminal VSEL, public voltage signal
Input terminal VCOM and signal output end OUT, each shifting deposit unit 621,622,623 ... include signal input part IN, gating
Control signal output TX_SEL and shift signal output end NEXT.Wherein, each gate control signal output end TX_SEL with
The gate control signal input terminal TXSEL of each gating control cells connects one to one, shifting deposit unit 621,622,623 ...
Gate control signal output end TX_SEL be used for each gating control cells 611,612,613 ... provide gate control signal.
The signal input part IN and upper one of every level-one shifting deposit unit of the second level into N grades of shifting deposit units 622,623 ...
Shift signal output end NEXT connection in grade shifting deposit unit, the signal input part IN of first order shifting deposit unit 621
Enabling signal is inputted, the signal input part IN of the shifting deposit unit 622,623 ... of the second level to N grades is respectively used in reception
The enabling signal that the shift signal output end NEXT of level-one shifting deposit unit is provided is to work.
In the present embodiment, the gate control signal of the gate control signal input terminal TXSEL of each gating control cells is equal
It is provided by the gate control signal outlet TX_SEL of shifting deposit unit, so, shifting deposit unit timesharing gating is each
The touch-control drive module of gating control cells provides touch drive signal with touch-driven electrode of the timesharing in array substrate.
With continued reference to Fig. 7, it illustrates the circuit structures of one embodiment of gate control circuit provided by the present application to show
It is intended to.Gate control circuit 700 includes gating control cells 711,712,713 ..., and gate control circuit 700 further includes the first letter
Number input terminal SW1, second signal input terminal SW2, wherein gating control cells 711,712,713 ... can be retouched for above embodiments
Any gating control cells stated.On each signal output end OUT and array substrate of gating control cells 711,712,713 ...
Touch-driven electrode TX1, TX2, TX3 ... correspond electrical connection.The first control signal input terminal TX_ of each gating control cells
SW1 is connect with the first signal input part SW1, the second control signal input terminal TX_SW2 and second signal of each gating control cells
Input terminal SW2 connection.
In the present embodiment, the gate control signal input terminal TXSEL of each gating control cells 711,712,713 ... can be with
Signal is directly provided by the driving IC in array substrate.Each gating control cells 711,712,713 ... are in driving IC to corresponding
Corresponding touch control electrode is driven to be shown or touched inspection under the control of the signal of gate control signal input terminal TXSEL input
It surveys.
Compared with gate control circuit 600 shown in fig. 6, difference exists gate control circuit 700 provided in this embodiment
In in the present embodiment, the gate control signal of the gate control signal input terminal TXSEL of gating control cells 700 can be direct
It is provided by the integrated circuit in array substrate.The present embodiment is integrated in integrated circuits by more control functions, simplifies
The design of driving unit, so that the occupied panel space of driving circuit for driving touch control electrode is reduced, simultaneously because
Gate control signal is directly provided using driving IC, is able to ascend control flexibility ratio.
On the basis of above embodiments, present invention also provides a kind of display panels.Referring to FIG. 8, it illustrates this
One structural schematic diagram of the display panel provided is provided.
In this example it is shown that panel 800 includes array substrate 81, array substrate 81 includes multiple along first direction X
First touch control electrode TX1, TX2, TX3 ... TXN of arrangement, array substrate further include the gating control that any of the above-described embodiment provides
Circuit 810, the signal output end and the first touch-control of 811,812,813 ... the 81N of each gating control cells of gate control circuit 810
Electrode TX1, TX2, TX3 ... connect one to one.
It further include integrated circuit 821, the first signal input part of gate control circuit 810, second on display panel 800
Signal input part is connect with integrated circuit 810 respectively, each gating control cells 811,812,813 ... of gate control circuit 810
The gate control signal input terminal TXSEL of 81N connects one to one with integrated circuit 821 respectively.Integrated circuit 821 is used for every
A touch detection stage provides the first pulse signal to the first signal input part of gate control circuit 810, to gating control electricity
The second signal input terminal on road 810 provides the first pulse signal or the second pulse signal, respectively to gating control cells 811,
812, the gate control signal input terminal TXSEL of 813 ... 81N provides high level signal.In the display stage, inputted to the first signal
End, second signal input terminal and each gate control signal input terminal TXSEL provide low level signal.
In the present embodiment, each gating control cells 811 of integrated circuit 821 and gate control circuit 810,812,
The gate control signal input terminal TXSEL connection of 813 ... 81N, then integrated circuit 821 can be directly to each gating control cells
811,812,813 ... 81N provide gate control signal, this allows for gating control cells independent control, and integrated circuit 821 can be with
In any order to touch control electrode TX1, TX2, TX3 ... TXN carry out touch-control scanning or display drive, improve control spirit
Activity.
With continued reference to Fig. 9, it illustrates another structural schematic diagrams of display panel provided by the present application.
As shown in figure 9, display panel 900 includes array substrate 91 and the color membrane substrates being arranged oppositely with array substrate 91
92, wherein array substrate 91 can be the array substrate 910 in display panel 900 shown in Fig. 9.
In the present embodiment, the first touch control electrode 910 is provided in array substrate 91, color membrane substrates are equipped with the second touch-control
Electrode 920.First touch control electrode 910 and second touch control electrode 920 are strip shaped electric poles.Wherein, the first touch control electrode 910 is along
One direction X arrangement, Y's second touch control electrode 920 arranges in a second direction, and first direction X intersects with second direction Y.
Further, the first touch control electrode 910 is set to array substrate 91 towards the side of color membrane substrates 92, the second touch-control
Electrode 920 is set to side of the color membrane substrates 92 far from array substrate 91, wherein the first touch control electrode 910 is touch-control driving electricity
Pole, second touch control electrode 920 are touch detection electrodes.
Further, display panel 900 is equipped with data line and scan line (being not shown in Fig. 9), the extension side of data line
It is mutually perpendicular to the extending direction with scan line.The extending direction of first touch control electrode 910 is consistent with the extending direction of data line,
The extending direction of second touch control electrode 920 and the extending direction of scan line are consistent.I.e. the extending direction of the first touch control electrode 910 with
The extending direction of second touch control electrode 920 is mutually perpendicular to.
Display panel 900 can also include flexible circuit board 921.Array substrate 91 further includes driving circuit 911 and driving
IC 912, the driving circuit 911 can be driving circuit shown in Fig. 9.Touching signals line can be equipped on color membrane substrates 92
922, second touch control electrode 920 is electrically connected to flexible circuit board 921, flexible circuit board 921 and driving by touching signals line 922
IC912 electrical connection, the convergence of touching signals line 922 being electrically connected on color membrane substrates 92 with each second touch control electrode 920 as a result, and electricity
It is connected to after flexible circuit board 921, is electrically connected by flexible circuit board 921 with driving IC 922, so that driving IC 922 can
To receive the signal of the return of second touch control electrode 920.
It is appreciated that above-mentioned display panel 900 further includes the structures such as back light unit, polarizing film, in order to avoid unnecessary
Fuzzy the application, these structures are not shown in Fig. 9.
The display panel that the above embodiments of the present application provide, driving IC can be to for driving the driving circuit of touch control electrode
Control signal is directly provided, the touch-control scanning of multiple touch control electrodes can be directly controlled execution by IC, it can by shift circuit
Function be integrated to driving IC in, to simplify the structure of display panel, and improve the flexibility of control.
Referring further to Figure 10, present invention also provides a kind of display device 1000, display dress of the present embodiment
It sets 1000 and can be used for such as smart phone, tablet terminal, mobile telephone, the personal computer of notebook type, game and set
The various devices such as standby.Specifically, the display device includes the display panel that previous embodiment provides, such as earlier figures 8 or Fig. 9 institute
The display panel shown.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature any
Other technical solutions of combination and formation.Such as features described above and (but being not limited to) disclosed herein have similar functions
Technical characteristic is replaced mutually and the technical solution that is formed.
Claims (13)
1. a kind of gate control circuit, which is characterized in that the gate control circuit includes multiple gating control cells；
Wherein, the gating control cells include gate control signal input terminal, touch-control drive module, driver module and
Signal output end；
The gating control cells further include the first phase inverter and the first constant voltage signal input terminal, and the touch-control drive module is also
Including the second phase inverter, the first transistor, second transistor and the first touch-control voltage signal inputs；Wherein,
The touch-control drive module includes first control signal input terminal, second control signal input terminal, the first transmission gate and
Second transmission gate, wherein the first control signal input terminal is connect with the input terminal of first transmission gate, second control
Signal input part processed is connect with the input terminal of second transmission gate, and the touch-control drive module, which is used to control in the gating, to be believed
The signal of number input terminal input, first control signal input terminal input signal and the second control signal input terminal
Under the collective effect of the signal of input, Xiang Suoshu signal output end exports touch drive signal；
The input terminal of first phase inverter is connected to the gate control signal input terminal, the output end of first phase inverter
It is connected to the second control terminal of first transmission gate；
First control terminal of first transmission gate is connected to the gate control signal input terminal, first transmission gate it is defeated
Outlet is connected to the input terminal of second phase inverter；
The output end of second phase inverter is connected to the grid of the first transistor, and the first pole of the first transistor connects
The first touch-control voltage signal inputs are connected to, the second pole of the first transistor is connected to the signal output end；
First pole of the second transistor is connected to the first constant voltage signal input terminal, the second pole of the second transistor
It is connected to the output end of first transmission gate, the grid of the second transistor is connected to the output of first phase inverter
End, alternatively, the grid of the second transistor is connected to the gate control signal input terminal；
The driver module includes display control signal input terminal, and the driver module is used to control in the gating
Under the control of the signal of the signal and display control signal input terminal input of signal input part input, Xiang Suoshu signal is defeated
Outlet output display signal.
2. gate control circuit according to claim 1, which is characterized in that the touch-control drive module further includes that third is anti-
Phase device group, third transistor, the 4th transistor, the second constant voltage signal input terminal and the second touch-control voltage signal inputs；Its
In,
First control terminal of second transmission gate is connected to the gate control signal input terminal, and the of second transmission gate
Two control terminals are connected to the output end of first phase inverter, and the output end of second transmission gate is connected to the third reverse phase
The input terminal of device group；
The third phase inverter group includes m cascade third phase inverters, and m is positive integer, the output of the third phase inverter group
End is connected to the grid of the third transistor, and the first pole of the third transistor is connected to the second touch-control voltage signal
Second pole of input terminal, the third transistor is connected to the signal output end；
First pole of the 4th transistor is connected to the second constant voltage signal input terminal, the second pole of the 4th transistor
It is connected to the output end of second transmission gate, the grid of the 4th transistor is connected to the gate control signal input
End, alternatively, the grid of the 4th transistor is connected to first inverter output.
3. gate control circuit according to claim 2, which is characterized in that the driver module includes third transmission
Door, the 4th phase inverter, the 5th transistor, the 6th transistor, display control signal input terminal and public voltage signal input terminal；
Wherein, the first control terminal of the third transmission gate is connected to the gate control signal input terminal, the third transmission
Second control terminal of door is connected to the output end of first phase inverter, and the input terminal of the third transmission gate is connected to described aobvious
Show control signal input, the output end of the third transmission gate is connected to the input terminal of the 4th phase inverter；
The grid of 5th transistor is connected to the output end of the 4th phase inverter, and the first pole of the 5th transistor connects
It is connected to the public voltage signal input terminal, the second pole of the 5th transistor is connected to the signal output end；
First pole of the 6th transistor is connected to the first constant voltage signal input terminal, the second pole of the 6th transistor
It is connected to the output end of the third transmission gate, the grid of the 6th transistor is connected to the gate control signal input
End.
4. gate control circuit according to claim 3, which is characterized in that first transmission gate, the second transmission gate with
And third transmission gate is the cmos transmission gate being made of PMOS tube and NMOS tube.
5. gate control circuit according to claim 2, which is characterized in that the third phase inverter group includes 1 third
Phase inverter.
6. gate control circuit according to claim 1, which is characterized in that the gate control circuit includes the first signal
Input terminal, second signal input terminal, the first control signal input terminal of each gating control cells are connected to first letter
Number input terminal, the second control signal input terminal of each gating control cells are connected to the second signal input terminal.
7. gate control circuit according to claim 1, which is characterized in that the gate control circuit further includes N number of grade
The shifting deposit unit of connection, wherein each shifting deposit unit include signal input part, gate control signal output end and
Shift signal output end；
The shift signal input terminal of shifting deposit unit described in the first order inputs enabling signal；
The signal input part of every level-one shifting deposit unit of the second level into N grades of shifting deposit units is posted with upper level displacement
Shift signal output end connection in memory cell；
The gate control signal input terminal of each gate control signal output end and each gating control cells corresponds
Connection.
8. a kind of display panel, which is characterized in that the display panel includes array substrate, and the array substrate includes along first
Multiple first touch control electrodes of direction arrangement and the gate control circuit as described in claim 1-7 any one；
The signal output end of the gate control circuit connects one to one with first touch control electrode.
9. display panel according to claim 8, which is characterized in that the display panel further includes color membrane substrates, described
Color membrane substrates include multiple second touch control electrodes arranged in a second direction, and the first direction intersects with the second direction.
10. display panel according to claim 9, which is characterized in that first touch control electrode is touch-driven electrode,
The second touch control electrode is touch-control sensing electrode；
The array substrate further includes multi-strip scanning signal wire and a plurality of data signal line that intersects with the scan signal line；Its
In, the data signal line extends along the first direction, and the scan signal line extends along the second direction.
11. display panel according to claim 10, which is characterized in that the display panel further includes integrated circuit；
Wherein, the integrated circuit includes the first output end and second output terminal, and the first output end of the integrated circuit connects
It is connected to the first signal input part of the gate control circuit, the second output terminal is connected to the of the gate control circuit
Binary signal input terminal.
12. display panel according to claim 11, which is characterized in that the integrated circuit further includes multiple gating controls
Signal output end, each gate control signal input terminal one of each gate control signal output end and the gate control circuit
One is correspondingly connected with；
The integrated circuit is used to provide the first level signal, In to the gate control signal input terminal in each display stage
Each touch detection stage provides the first pulse signal to the first signal input part of the gate control circuit, to the gating
The second signal input terminal of control circuit provides the first pulse signal or the second pulse signal.
13. a kind of display device, including the display panel as described in claim 8-12 any one.
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| CN201611241715.1A CN106681556B (en) | 2016-12-29 | 2016-12-29 | Gate control circuit, display panel and display device |
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