CN105355186B - Driving circuit, touch-control display panel and its driving method, touch control display apparatus - Google Patents
Driving circuit, touch-control display panel and its driving method, touch control display apparatus Download PDFInfo
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- CN105355186B CN105355186B CN201510966445.XA CN201510966445A CN105355186B CN 105355186 B CN105355186 B CN 105355186B CN 201510966445 A CN201510966445 A CN 201510966445A CN 105355186 B CN105355186 B CN 105355186B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
Abstract
This application discloses driving circuit, touch-control display panel and its driving method, touch control display apparatus.The driving circuit is for driving touch-control display panel, the touch-control display panel includes multiple data lines, the driving circuit is for first electric signal that prestores in the signal storage time section in touch detection stage, it is in the touch sweep time section in touch detection stage that the data line is floating, apply first electric signal and data-signal to prestore to the data line in the display stage.The driving circuit passes through in the touch detection stage that data line is floating, touch detection can be impacted to avoid the spuious charge generated on data line, improve the precision of touch detection, the charging time from data line when entering the display stage in the touch detection stage is shortened by the electric signal that prestores simultaneously, accelerates charging rate.
Description
Technical field
This application involves display technology fields, and in particular to technical field of touch-control display more particularly to driving circuit, touch-control
Display panel and its driving method, touch control display apparatus.
Background technology
In liquid crystal display panel, usually using the voltage difference between control data line and public electrode, electric field is generated, is made
Liquid crystal rotates, to change the polarization direction of light.It is existing from the built-in Incell touch-controls of appearance for touch-control display panel
In display technology, by parasitic capacitance (such as the parasitic capacitance between grid line and public electrode and the data between panel film layer
Parasitic capacitance etc. between line and public electrode) caused by noise have a great impact to the precision of the touch detection under high frequency.
Therefore it needs to reduce parasitic capacitance, to promote the precision of touch detection.
Invention content
In view of this, this application provides driving circuit, the driving method of touch-control display panel, touch-control display panel and
Touch control display apparatus.
In a first aspect, this application provides a kind of driving circuit, for driving touch-control display panel, the touch-control display surface
Plate includes multiple data lines, which is characterized in that the driving circuit is used in the signal storage time section in touch detection stage
Prestore the first electric signal, in the touch sweep time section in the touch detection stage that the data line is floating, in display rank
Section applies first electric signal and data-signal to prestore to the data line.
Second aspect, this application provides a kind of driving method of touch-control display panel, the touch-control display panel includes
Multiple data lines, the method includes：In the signal storage time section in touch detection stage, prestore the first electric signal；It is touching
It touches in the touch sweep time section of detection-phase, the data line is floating；In the display stage, prestore to data line application
First electric signal and data-signal.
The third aspect this application provides a kind of touch-control display panel, including multiple data lines, multiple is arranged in array
Public electrode and the driving circuit provided such as the application first aspect；Wherein, the public electrode provides in the display stage
Common voltage needed for display, the touch detection stage as touch sensible electrode by the touch detection pulse signal of input into
Row touch detection；The output end of the driving circuit is connect with the multiple data lines.
Fourth aspect includes as what the application third aspect was provided touches this application provides a kind of touch control display apparatus
Control display panel.
Driving circuit, touch-control display panel and its driving method provided by the present application, touch control display apparatus, by touching
Detection-phase is floating by data line, can reduce the spuious charge brought by the display signal of data line during touch detection,
To reduce the parasitic capacitance between panel film layer, the precision of touch detection is promoted.Simultaneously as prestoring in the touch detection stage
Electric signal can be charged to data line by the electric signal to prestore in display stage, accelerate charging rate.
Description of the drawings
Non-limiting embodiment is described in detail with reference to made by the following drawings by reading, other features,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural schematic diagram of the touch-control display panel involved by the embodiment of the present application；
Fig. 2 is the structural schematic block diagram of driving circuit provided herein；
Fig. 3 is the circuit structure diagram of a specific embodiment of driving circuit provided herein；
Fig. 4 is the circuit structure diagram of another specific embodiment of driving circuit provided herein；
Fig. 5 is a working timing figure of the driving circuit in embodiment illustrated in fig. 3；
Fig. 6 is the structural schematic diagram of one embodiment of touch-control display panel provided herein.
Specific implementation mode
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, is illustrated only in attached drawing and invent relevant part with related.
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.
Referring to FIG. 1, it illustrates the structural schematic diagrams of the touch-control display panel involved by the embodiment of the present application.Touch-control is aobvious
Show panel 100 may include multiple data lines S1, S2, S3 ..., Sm, with multiple data lines insulation intersect multi-strip scanning line G1,
G2, G3 ..., Gn, the pel array 11 being made of multiple pixels 101 and under the control of scanning signal by data-signal
It is transferred to multiple transistors 12 of pel array.
In the present embodiment, the work of touch-control display panel may include two stages：Display stage and touch scanning rank
Section.In the display stage, transistor is connected according to gated sweep signal in driver module line by line, according to input multiple data lines
Signal controls the display brightness of pel array, to include on panel by the image data of input correspondence.In touch detection rank
Section, touch-control drive module determine touch location according to the variation of pulse signal.
In the present embodiment, above-mentioned driver module and touch-control drive module can be integrated into the same drive module,
It is shown in display stage driving panel, touch detection is carried out in touch detection stage driving panel.
Driving circuit 13 can be set on touch-control display panel 100, for driving the touch-control display panel.Driving circuit
13 can drive touch-control display panel to alternatively enter display stage and touch detection stage.Specifically, rank is shown at one
Section enters the touch detection stage after terminating, the touch detection stage may include signal storage time section and touch sweep time
Section.In the signal storage time section in touch detection stage, driving circuit 13 can prestore the first electric signal；In touch detection rank
In the touch sweep time section of section, driving circuit 13 can be floating by data line, enters next display stage later.Show rank
Section may include precharge time period and data sweep time section.In the display stage, driving circuit 13 is first in precharge time
Data line is charged to the required current potential of display by the first electric signal and data-signal that Duan Liyong prestores, then in data scanning
Period is charged by data-signal to data line.
The driving circuit that the present embodiment is provided, can be used for：It is pre- in the signal storage time section in touch detection stage
Deposit the first electric signal；It is in the touch sweep time section in touch detection stage that data line is floating；In the display stage to data line
Apply the first electric signal and data-signal to prestore.Wherein, the current potential of the first electric signal to prestore in the touch detection stage can be with
It is identical as the initial potential of data-signal that the display stage applies to data line.That is, in the touch detection stage, can incite somebody to action
The data-signal that data line is applied to required for next display stage prestores in the driving circuit, is entering next display stage
When, while the signal to prestore and data-signal being input in data line and charged to pixel, so that the current potential of pixel is quickly ramped up to
It shows required current potential, shortens from charging time when entering the display stage in the touch detection stage.
With further reference to Fig. 2, it illustrates the structural schematic block diagrams of driving circuit provided herein.
As shown in Fig. 2, driving circuit 200 provided herein may include the first control module 21 and second control mould
Block 22.Driving circuit 200 drives touch-control display panel to alternatively enter display stage and touch detection stage.The display stage includes
Precharge time period and data sweep time section, touch detection stage include signal storage time section and touch sweep time section.
First control module 21 is showing rank for first electric signal that prestores in the signal storage time section in touch detection stage
The first electric signal to prestore is applied to data line in the precharge time period of section.Second control module 22 is used in touch detection
It is in the touch sweep time section in stage that data line is floating, and in the precharge time period in display stage and data sweep time
Section inbound data line applies data-signal.
In fig. 2, the input terminal of the first control module 21 and the second control module 22 is connected to data signal input
Sn, the output end of the first control module 21 are connected to the input terminal of the second control module 22, the output end of the second control module 22
Out with the data line on touch-control display panel for connecting.
The above-mentioned touch detection stage includes signal storage time section and touch sweep time section.In the touch detection stage
In signal storage time section, the first control module 21 can with the first electric signal of pre-stored data signal input part Sn input, with
Into being charged simultaneously to data line by the first electric signal for prestoring and data-signal when next display stage.
In the touch sweep time section in touch detection stage, it is floating that the second control module 22 controls data line.At this moment, i.e.,
Make to be applied with data-signal to data signal input Sn, the data-signal applied will not be passed to data line.In this way
Bad shadow can be caused to the precision of touch detection to avoid touching in sweep time section since there are spuious charges on data line
It rings.
It should be noted that above-mentioned signal storage time section can also touch before touching sweep time section
It can also be the same period with sweep time section is touched after sweep time section.If signal storage time section is touching scanning
Before period or after touching sweep time section, the second control module 22 can be defeated by data-signal in signal storage time
Enter to hold the signal that Sn is inputted to be transferred to the output end Out being connect with data line, or by data signal input Sn and output end
Circuit between Out disconnects, and keeps data line at floating state.If signal storage time section is same with sweep time section is touched
Period, then the second control module 22 it is floating that data line is controlled in signal storage time section.
In the present embodiment, multiple public electrodes and touch control electrode can be equipped on touch-control display panel.Public electrode can
Required common voltage is shown to be provided in the display stage, and touch control electrode can be swept in the touch detection stage for detecting to touch
The variation of signal is retouched, so that it is determined that touch location.
In some embodiments, the public electrode on touch-control display panel can be multiplexed with touch control electrode.If touch-control is aobvious
Show that the public electrode of panel is multiplexed with touch control electrode, and signal storage time section before touching sweep time section or is touching
After sweep time section, then in signal storage time section, touch-control display panel can be believed according to the data of pixel storage inside
Pixel in number driving panel shows corresponding brightness；It is touching in sweep time section, since data line is floating and public electrode
It can not provide display required voltage, touch-control display panel not display image data.If the common electrical of touch-control display panel
Pole is multiplexed with touch control electrode and signal storage time section and touch sweep time section are the same period, then touch-control display panel exists
Signal storage time section and touch not display image data in sweep time section.
If the public electrode of touch-control display panel is not multiplexed with touch control electrode, touch-control display panel is in the touch detection stage
Interior data line can show corresponding brightness when floating according to the pixel in the data-signal driving panel of pixel storage inside,
Corresponding brightness is shown according to the pixel in the signal driving panel of data signal input Sn inputs when data line is not floating.
Within the precharge time in display stage, the first control module 21 will be in the signal storage time in touch detection stage
The first electric signal to prestore in section is applied to data line by the second control module；Meanwhile second control module 22 data are believed
The signal of number input terminal Sn inputs is transferred to output end Out.That is the first control module 21 and the second control module simultaneously to it is defeated
The data line of outlet Out connections charges.As a result, when from the display stage is entered in the touch detection stage, pass through two control modules
The current potential needed for display image is charged to pixel by data line simultaneously, the charging rate to pixel can be accelerated.
Within the data scanning period in display stage, number that the second control module 22 inputs data signal input Sn
It is believed that number being transferred to output end Out.At this moment, the display signal that the pixel on display panel is provided according to data line is shown.
When the current potential of the first electric signal is identical as the initial potential of data-signal that next display stage is applied,
In the precharge time period in display stage, the current potential phase of the input terminal Sn of the output end of the first control module and the second control module
It charges simultaneously to data line Deng, the two.In some optional realization methods of the present embodiment, the current potential of the first electric signal also may be used
Initial potential with the data-signal applied different from next display stage, such as the current potential of the first electric signal can be upper
The current potential of the data-signal applied at the end of one display stage.In this way, when entering next display stage, the first control
Current potential between the output end of module and the input terminal Sn of the second control module is unequal, but the two current potential is above and is touching inspection
The current potential of survey stage floating output end Out, so the two can charge to data line, can also shorten needed for charging when
Between.
The driving circuit that the present embodiment is provided, by the touch detection stage and by data line it is floating, can to avoid touch
It touches and generates spuious charge in detection-phase on data line, to be impacted to touch detection precision；Meanwhile by touching inspection
The survey stage prestores signal and is applied to data line simultaneously in the display stage by the signal to prestore and data-signal, shortens data line
Charging time, reduce power consumption.
With further reference to Fig. 3, it illustrates the circuit knots of a specific embodiment of driving circuit provided herein
Composition.
As shown in figure 3, in the present embodiment, the driving circuit that the present embodiment is provided includes the first control module 31 and the
Two control modules 32.First control module 31 includes the first transistor M1 and storage capacitance C1.The grid of the first transistor M1 with
The TSD1 connections of first control signal end, the first pole of the first transistor M1 are connect with one end of storage capacitance C1, the first transistor
The second pole of M1 is connect with data signal input Sn1.The other end of storage capacitance C1 is grounded.
Second control module 32 includes second transistor M2, third transistor M3 and phase inverter R1.Second transistor M2
It is different from the channel type of third transistor M3.Such as second transistor M2 be P-type transistor when, third transistor M3 be N-type
Transistor.The grid of second transistor M2 is connect with second control signal end TPSW1, and the grid of third transistor M3 passes through reverse phase
Device R1 is connect with second control signal end TPSW1.Specifically, the grid of third transistor M3 and the output end of phase inverter R1 connect
It connects, the input terminal of phase inverter R1 is connect with second control signal end TPSW1.The first pole of second transistor M2 and third transistor
The first pole of M3 is connect with data signal end Sn1, and the second pole of second transistor M2 is connected with the second pole of third transistor M3
Together, it is connect with data line as output end Out1.
In the present embodiment, the first transistor M1 is identical with the channel type of third transistor M3, such as the first crystalline substance in Fig. 3
Body pipe M1 and third transistor M3 is N-type transistor；Second transistor M2 is different from the channel type of third transistor M3, example
As second transistor M2 is the P-type transistor different from third transistor M3 channel types in Fig. 3.
In further embodiments, the channel type of the first transistor M1 can be with the channel type phase of second transistor M2
Together, and it is different from the channel type of third transistor M3.
With further reference to Fig. 4, it illustrates the circuits of another specific embodiment of driving circuit provided herein
Structure chart.As shown in figure 4, the first transistor M4 is P-type transistor, grid and the first control signal end of the first transistor M4
First pole of TSD2 connections, the first transistor M4 is connect with one end of storage capacitance C2, the second pole of the first transistor M4 and number
According to signal end Sn2 connections.Second transistor M5 is P-type transistor, and third transistor M6 is N-type transistor, second transistor M5
It is connect with the grid of third transistor M6 with second control signal end TPSW2, the of second transistor M5 and third transistor M6
One pole is connect with data signal input Sn2, and the second pole and the output end Out2 of second transistor M5 and third transistor M6 connect
It connects.
It should be noted that in further embodiments, second transistor can also be N-type transistor, and third is brilliant at this time
Body pipe is P-type transistor, and the first transistor can be N-type transistor or P-type transistor.
In the embodiment that above-mentioned combination Fig. 3 and Fig. 4 is described, the first transistor is inputted in response to first control signal end
Control signal and on or off.When the first transistor is connected, if data signal input has data-signal input, and data are believed
Number input terminal to the access between output end does not turn on, and can charge to storage capacitance, using the data-signal of input as
First electric signal is stored in storage capacitance；If data signal input to the access between output end is conducting shape
State, and the current potential of output end, less than the current potential of one end of storage capacitance, storage capacitance can pass through the first electric signal of storage
Second transistor and third transistor in second control module are transferred to output end, at this moment, the current potential of data signal input
Also above the current potential of output end, then the data-signal of data signal input input is also by second transistor and third transistor
It charges to output end.
Second transistor on or off in response to second control signal, third transistor is in response to second control signal
Inversion signal and on or off.Due to second transistor and third transistor channel type difference, second transistor
It simultaneously turns on or ends with third transistor.By data signal input input when second transistor and third transistor are connected
Signal and the signal of storage capacitance storage are transferred to output end, to electric to data micro USB by two signal sources.Second crystal
Data signal input can charge to storage capacitance when pipe and third transistor cut-off.
In some optional realization methods of the present embodiment, driving circuit further includes third control module.Third controls
Module can be used for generating first control signal and second control signal in the touch detection stage, and respectively to the first control
Signal end processed and second control signal end apply generated first control signal and second control signal.
Specifically, by taking circuit structure shown in Fig. 3 as an example, third control module can provide control to the first control module 31
The first control signal of the first transistor M1 on or off.Further, in the signal storage time section in touch detection stage,
Third control module can provide the control the first transistor electric potential signal that M1 is connected to the first control module 31, to pass through first
In the signal storage capacitance C1 that transistor inputs data signal input Sn1, control second is provided to the second control module 32
The electric potential signal of transistor M2 and third transistor M3 cut-offs, to ensure that the signal of data signal input Sn1 inputs cannot lead to
It crosses output end Out1 and is applied to data line, cause the increase of power consumption.In the touch sweep time section in touch detection stage, third control
Molding block can provide the control the first transistor electric potential signal that M1 ends to the first control module 31, to the second control module 32
The electric potential signal of control second transistor M2 and third transistor M3 cut-offs are provided, data line is floating, ensure to sweep in touch
It will not be interfered by spuious charge on data line when retouching.In the precharge time period in display stage, third control module can be with
The control electric potential signal that the first transistor M1 is connected is provided to the first control module 31, control the is provided to the second control module 32
The electric potential signal of two-transistor M2 and third transistor M3 conductings, the storage capacitance C1 signals stored and data-signal are inputted
The signal of end Sn1 inputs is transferred to output end Out1.
The driving circuit that above-described embodiment is provided can drive as the part in the drive module of touch-control display panel
Dynamic panel carries out display and touch detection.Present invention also provides a kind of driving methods, include above-described embodiment institute for driving
The touch-control display panel of the driving circuit of offer.The driving of touch-control display panel provided herein is described below in conjunction with Fig. 5
Method.
It should be noted that in the following description, low level signal is the signal lower than the level of high level signal.Also may be used
To be interpreted as, low level signal is the level signal for making corresponding transistor cutoff, and high level signal is to make corresponding transistor
The level signal of conducting.
In the present embodiment, for driving the driving method of above-mentioned touch panel to include：In the signal in touch detection stage
In storage time section, prestore the first electric signal；It is in the touch sweep time section in touch detection stage, data line is floating；?
The display stage applies the first electric signal and data-signal to prestore to data line.By the touch detection stage prestore first electricity
The first electric signal to prestore is simultaneously applied to data line by signal in the display stage, can reduce the power consumption of data line drive circuit；
It is before carrying out touch detection by touch detection pulse signal that data line is floating, avoid the spuious charge of data line generation
Influence accuracy of detection.
Referring to FIG. 5, it illustrates a working timing figures of the driving circuit in embodiment illustrated in fig. 3.Such as Fig. 5 institutes
Show, in the signal storage time section T1 in touch detection stage, is prestored the first electric signal by the first control module 31.At this moment,
The first control signal of one control signal end TSD1 inputs is high level signal, and the first transistor M1 is connected.Second control letter
Number end TPSW1 input second control signal can be low level signal, control second transistor M2 and third transistor M3 lead
It is logical.First electric signal of data signal input Sn1 inputs is stored in storage capacitance C1.
In the touch sweep time section T2 in touch detection stage, controlling the second control module 32 by second control signal will
Data line is floating.At this moment, the second control signal of second control signal end TPSW1 inputs is high level signal, makes the second crystal
Pipe M2 and third transistor M3 cut-offs, the output of output end Out1 no signals, data line are at floating state.Within the period,
The first control signal of first control signal end TSD1 inputs can be high level signal, and the first transistor M1 is made to be connected, first
Second pole of transistor is equal with the current potential of data signal input Sn1.Within the period, since data line is floating, number
According to spuious charge is not present on line, the signal intensity that touch sensible electrode senses is not influenced by spuious charge on data line,
It can guarantee the precision of touch detection under high touch frequency.
In some embodiments, defeated in the touch sweep time in touch detection stage section T2, first control signal end TSD1
The first control signal entered can be low level signal, and the first transistor M1 is made to end, to ensure storage capacitance C1 storages
First electric signal will not be transferred to data signal input Sn1 by the first transistor M1.
In the precharge time period T3 in display stage, controlling first control module 31 by first control signal will prestore
First electric signal is applied to data line, and control the second control module 32 by second control signal applies data letter to data line
Number.At this moment, the first signal of first control signal end TSD1 inputs is high level signal, and the first transistor M1 is made to be connected, second
The second control signal of control signal end TPSW1 inputs is low level signal, and second transistor M2 and third transistor M3 is made to lead
Logical, the signal of storage capacitance C1 and data signal input Sn1 inputs charges to output end Out1 simultaneously, quickly by data micro USB
Electricity is to showing required current potential.
In the data scanning period T4 in display stage, the second control module 32 is controlled to data by second control signal
Line applies data-signal.At this moment, the first signal of first control signal end TSD1 inputs is low level signal, makes the first transistor
M1 ends, to avoid data signal input Sn1 by data-signal is transferred to storage capacitance C1 by the first transistor M1
Cause the increase of power consumption.The second control signal of second control signal end TPSW1 inputs is low level signal, makes second transistor
M2 and third transistor M3 conductings, the signal of data signal input Sn1 inputs can be to be shown needed for the grayscale or pixel of pixel
The corresponding level signal of brightness shown, the brightness shown needed for grayscale or pixel of the level value by pixel determine.Data-signal
The level signal of input terminal Sn1 inputs is exported by second transistor and third transistor to the output end being connect with data line
Out1。
It should be noted that the signal that data signal input Sn1 is inputted in Fig. 5 is only schematical.Actually answering
In, the signal inputted to data signal input Sn1 can show required any level signal.
From fig. 5, it can be seen that letter of the first control signal of first control signal end TSD1 inputs in the touch detection stage
The level of number storage time section T1 is identical as in the display level of precharge time period T3 in stage, the within the two periods
One transistor M1 conductings, realize the charging and discharging of storage capacitance respectively.First control of first control signal end TSD1 inputs
Level of the signal in the level and the data scanning period T4 in the display stage of the signal storage time section in touch detection stage
It differs, avoids the data scanning period T4 in the display stage and charge to storage capacitance, to reduce the drive of data line
Dynamic power consumption.
Touch sweep time section T2 of the second control signal of second control signal end TPSW1 inputs in the touch detection stage
Level and the level of precharge time period T3 in the display stage differ.It is touching in sweep time section T2, the second control
Signal is needed second transistor M2 and third transistor M3 shutdowns will ensure not will produce stray electrical lotus on data line；Aobvious
To show in the precharge time period T3 in stage, second control signal needs that the circuit between input terminal Sn1 to output end Out1 is connected,
It is transferred to output end Out1 with the first electric signal that the first control module 31 prestores.
Signal storage time section T1 of the signal of data signal input Sn1 inputs in the touch detection stage is that current potential differs
In 0 level signal, the data scanning period T4 in display stage can be shown needed for the grayscale or pixel of pixel it is bright
Spend corresponding level signal.The pixel being connect with data line by thin film transistor (TFT) on touch-control display panel can be according to the level
Signal shows corresponding brightness.
Present invention also provides a kind of touch-control display panels including driving circuit described in above-described embodiment.It please refers to
Fig. 6, it illustrates the structural schematic diagrams of one embodiment of touch-control display panel provided herein.
As shown in fig. 6, touch-control display panel may include multiple data lines S1, S2, S3 ... Sm, it is multiple to be arranged in array
Public electrode 61 and the driving circuit 62 as described in above-described embodiment.Wherein, public electrode 61 provides aobvious in the display stage
Show required common voltage, is used as touch sensible electrode in touch detection stage public electrode 61, passes through the touch detection of input
Pulse signal carries out touch detection.Driving circuit 62 includes and one-to-one first control module of data line and second controls mould
Block.An and third control module.In figure 6, the first control module and the second control module are integrated in a driving mould
In block 621, third control module 622 to the first control signal end TSD of each first control module and it is each second control
The second control signal end TPSW of molding block provides first control signal and second control signal respectively.The output of driving circuit 62
End is connect with multiple data lines.In figure 6, the output end of each drive module 621 is connect with a data line.
It is appreciated that touch control display apparatus can also include other well known structures, as pel array, multi-strip scanning line,
Shift register etc..In order to unnecessarily obscure embodiment of the disclosure, these well known structures are not shown in figure 6.
The touch control display apparatus that above-described embodiment is provided, signal when solving touch detection on data line are felt to touching
The influence for answering the signal intensity that electrode senses, can promote the essence of touch detection while normal display image data
Degree.Also, pass through the data-signal to prestore in touch detection needed for display so that quickly fill into data line when the display stage
Electricity reduces the power consumption of touch control display apparatus to required current potential.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member 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 the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (8)
1. a kind of driving circuit includes multiple data lines, feature for driving touch-control display panel, the touch-control display panel
It is, the driving circuit is touched for first electric signal that prestores in the signal storage time section in touch detection stage described
The touch sweep time section for touching detection-phase is interior floating by the data line, prestores to data line application in the display stage
First electric signal and data-signal；
The driving circuit includes the first control module and the second control module；
First control module for prestore in the signal storage time section in touch detection stage first electric signal with
And first electric signal to prestore is applied to the data line in the precharge time period in display stage；
Second control module be used for the touch detection stage touch sweep time section in by the data line it is floating and
Apply data-signal to the data line in the precharge time period in display stage and data sweep time section；
Second control module includes second transistor, third transistor and phase inverter；The second transistor with it is described
The channel type of third transistor is different；The grid of the second transistor is connect with second control signal end；The third is brilliant
The grid of body pipe is connect by the phase inverter with the second control signal end；First pole of the second transistor and described
First pole of third transistor is connect with the data signal end；Second pole of the second transistor and the third transistor
The second pole connect with the data line.
2. driving circuit according to claim 1, the current potential of first electric signal and the initial electricity of the data-signal
Position is identical.
3. driving circuit according to claim 1, which is characterized in that first control module include the first transistor and
Storage capacitance；The grid of the first transistor is connect with first control signal end, the first pole of the first transistor and institute
State one end connection of storage capacitance, the second pole of the first transistor connect with data signal end, the storage capacitance it is another
One end is grounded.
4. driving circuit according to claim 1 or 3, which is characterized in that the driving circuit further includes third control mould
Block is used to generate first control signal and second control signal in the touch detection stage, and respectively to first control
Signal end processed and the second control signal end apply the first control signal and the second control signal.
5. a kind of driving method of touch-control display panel, the touch-control display panel include multiple data lines, which is characterized in that institute
The method of stating includes：
In the signal storage time section in touch detection stage, prestore the first electric signal；
It is in the touch sweep time section in touch detection stage, the data line is floating；
In the display stage, apply first electric signal and data-signal to prestore to the data line；
In the signal storage time section in the touch detection stage, prestored first electric signal by the first control module；
In the touch sweep time section in the touch detection stage, controlling the second control module by second control signal will be described
Data line is floating；
In the precharge time period in display stage, described first will to be prestored by the first control module of first control signal control
Electric signal is applied to the data line, and control the second control module by second control signal applies data letter to the data line
Number；
In the data scanning period in display stage, the second control module is controlled by second control signal and is applied to the data line
Add data-signal；
In the signal storage time section in the touch detection stage, the first transistor is connected with will be described by first control signal
First electric signal is pre-stored in storage capacitance, wherein the grid of the first transistor is connect with first control signal end, described
First pole of the first transistor is connect with the storage capacitance, and the second pole of the first transistor is connect with data signal end,
The other end of the storage capacitance is grounded；
In the touch sweep phase in the touch detection stage, second transistor and third crystal are turned off by second control signal
Pipe is with floating by the data line, wherein the grid of the second transistor is connect with second control signal end, and the third is brilliant
The grid of body pipe is connect by phase inverter with second control signal end, the first pole of the second transistor and third transistor with
Data signal end connects, the output end connection of the second pole and data-signal of the second transistor and third transistor；It is described
Second transistor is different from the channel type of the first transistor and the third transistor；
In the precharge time period in the display stage, the first transistor is connected with to institute by the first control signal
It states data line and applies first electric signal to prestore, the second transistor and third are connected by the second control signal
Transistor to the data line to apply data-signal；
In the data scanning period in the display stage, the second transistor and the are connected by the second control signal
Three transistors to the data line to apply data-signal.
6. according to the method described in claim 5, it is characterized in that,
The first control signal is in the level of the signal storage time section in the touch detection stage and in the display stage
Precharge time period level it is identical, differed with the level of the data scanning period in the display stage；
The second control signal is in the level for touching sweep time section in the touch detection stage and in the display stage
The level of precharge time period differ.
7. a kind of touch-control display panel, which is characterized in that including multiple data lines, multiple public electrodes being arranged in array and
Driving circuit as described in one of Claims 1-4；Wherein, the public electrode provides the public affairs needed for display in the display stage
Common voltage carries out touch detection as touch sensible electrode in the touch detection stage by the touch detection pulse signal of input；
The output end of the driving circuit is connect with the multiple data lines.
8. a kind of touch control display apparatus, which is characterized in that including touch-control display panel as claimed in claim 7.
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| CN107665674B (en) * | 2016-07-29 | 2019-07-26 | 京东方科技集团股份有限公司 | Level translator and its operating method, gate driving circuit and display device |
| CN106843584A (en) * | 2017-01-23 | 2017-06-13 | 武汉华星光电技术有限公司 | A kind of contact panel |
| CN106919927B (en) * | 2017-03-07 | 2019-08-27 | 京东方科技集团股份有限公司 | A kind of fingerprint identification device and its signal reading method, display device |
| CN106959781B (en) * | 2017-03-30 | 2020-01-21 | 厦门天马微电子有限公司 | Touch display panel, driving method and touch display device |
| JP2019079025A (en) * | 2017-10-19 | 2019-05-23 | シナプティクス インコーポレイテッド | Display device, voltage control method in display panel, and display driver |
| CN209803754U (en) * | 2017-12-12 | 2019-12-17 | 深圳深微创芯科技有限公司 | Drive chip, touch display device, and electronic apparatus |
| TWI675363B (en) * | 2018-09-04 | 2019-10-21 | 友達光電股份有限公司 | Display, display driving device and the driving method thereof |
| US11797122B2 (en) * | 2020-09-25 | 2023-10-24 | Wuhan Boe Optoelectronics Technology Co., Ltd. | Touch method, touch circuit and touch device |
| CN114327113A (en) * | 2020-09-30 | 2022-04-12 | 京东方科技集团股份有限公司 | Display touch apparatus and control method |
| CN112799538B (en) * | 2021-01-19 | 2024-03-15 | 京东方科技集团股份有限公司 | Touch driving method, touch driving device and touch display device |
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