CN106814910B - Touch-control display panel and its driving method, touch control display apparatus - Google Patents
Touch-control display panel and its driving method, touch control display apparatus Download PDFInfo
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- CN106814910B CN106814910B CN201710028536.8A CN201710028536A CN106814910B CN 106814910 B CN106814910 B CN 106814910B CN 201710028536 A CN201710028536 A CN 201710028536A CN 106814910 B CN106814910 B CN 106814910B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
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Abstract
This application discloses a kind of touch-control display panel and its driving methods, touch control display apparatus.Touch-control display panel includes: a plurality of scan line extended in a first direction；The a plurality of data line extended in a second direction；First touch control electrode layer, including multiple the first touch control electrodes extended in a second direction；Second touch control electrode array, the second touch control electrode including M row N column, wherein the line direction of second touch control electrode array is parallel to first direction；Each first touch control electrode is at least partly be overlapped to the orthographic projection of second touch control electrode array and each second touch control electrode of wherein at least one column of second touch control electrode array；Multiple switch unit, for each second touch control electrode of same a line to be electrically connected to each other or disconnect.According to the scheme of the embodiment of the present application, touch-control display panel switches between mutual capacitance type touch detection framework and self-tolerant touch detection framework, to promote touch detection accuracy and sensitivity in the presence of a harsh environment.
Description
Technical field
The present disclosure relates generally to field of display technology more particularly to a kind of touch-control display panels and its driving method, touch-control
Display device.
Background technique
Touch control display apparatus can detect finger in the display screen plane of touch control display apparatus by touch control electrode
Coordinate position, and shown accordingly according to the coordinate position.
In current touch control display apparatus, touch function is usually realized by touch-driven electrode and touch-control sensing electrode.
Wherein, touch-driven electrode is parallel to each other, and touch-control sensing electrode is parallel to each other, and touch-driven electrode and touch-control sensing electrode
Direction intersection.Apply touch scanning signals to touch-driven electrode, when the screen of the finger of people contact touch control display apparatus, hand
Refer to and form coupled capacitor with certain touch control electrodes on screen, and is flowed out from a pole plate (touch-control sensing electrode) for coupled capacitor
Leakage current.Touch-control detection circuit determines the touch-control for forming coupled capacitor in two layers of touch control electrode with finger by detection leakage current
Electrode drive electrode and touch-control sensing electrode, so that it is determined that touch location.
However, touch-control sensing electrode senses when above-mentioned touch control display apparatus encounters adverse circumstances (for example, getting wet)
Semaphore will strongly reduce, seriously affected the accuracy and sensitivity of touch detection.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, be intended to provide a kind of touch-control display panel and its driving method,
Touch control display apparatus, to solve the technical problems existing in the prior art.
In a first aspect, the embodiment of the present application provides a kind of touch-control display panel, comprising: a plurality of to extend in a first direction
Scan line；The a plurality of data line extended in a second direction；First touch control electrode layer, including multiple first extended in a second direction
Touch control electrode；Second touch control electrode array, the second touch control electrode including M row N column, wherein the row of second touch control electrode array
It is oriented parallel to first direction；Orthographic projection and second touch control electrode array of each first touch control electrode to second touch control electrode array
Wherein one column each second touch control electrode be at least partly overlapped；Multiple switch unit, for being touched each the second of same a line
Control electrode is electrically connected to each other or disconnects.
Second aspect, present invention also provides the driving methods of touch-control display panel, for driving touch-control as above to show
Panel, driving method include: the touch detection mode for judging touch-control display panel, and touch detection mode includes from appearance detection pattern
With mutual tolerance detection pattern；If touch-control display panel is in from detection pattern is held, each switch unit shutdown is controlled, and sweep in touch-control
Apply touch drive signal respectively to each second touch control electrode during retouching.
The third aspect, present invention also provides touch control display apparatus, including touch-control display panel as above.
According to the scheme of the embodiment of the present application, by the way that switch unit is arranged between the second touch control electrode of same a line, and
The second touch control electrode of same a line is connected or disconnected under the control of the input signal of control terminal, so that touch-control display panel can be with
Switch between mutual capacitance type touch detection framework and self-tolerant touch detection framework, to promote touch-control display panel in severe ring
Touch detection accuracy and sensitivity under border, and it is fast from detection framework touch detection speed is held that touch-control display panel had both been possessed
The advantages that possess again mutual tolerance detection framework accuracy it is high the advantages that.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the schematic diagram of one embodiment of the touch-control display panel of the application；
Fig. 2 shows in the touch-control display panel of Fig. 1, wherein a line second touch control electrode and corresponding switch unit show
Meaning property structure chart；
Fig. 3 shows the schematic diagram of another embodiment of the touch-control display panel of the application；
Fig. 4 is shown in embodiment illustrated in fig. 3, the first gate control circuit, the second gate control circuit and corresponding
The schematic diagram of two touch control electrode rows；
Fig. 5 show the application touch-control display panel work under mutual tolerance framework when, each driving signal it is schematic when
Sequence figure；
Fig. 6 show the application touch-control display panel work from hold framework under when, each driving signal it is schematic when
Sequence figure；
Fig. 7 is shown when touch-control display panel is liquid crystal display panel, a reality of the touch-control display panel of the application
Apply the schematic architectural diagram of example；
Fig. 8 shows the schematic diagram of one embodiment of the touch control display apparatus of the application；
Fig. 9 shows the schematic flow chart of one embodiment of the driving method of the touch-control display panel of the 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 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.
It is shown in Figure 1, it is the schematic diagram of one embodiment of the touch-control display panel of the application.
The touch-control display panel of the present embodiment includes following structure:
The data that a plurality of scan line (not shown) extended along first direction D1 and a plurality of D2 in a second direction extend
Line (not shown).
First touch control electrode layer, the first touch control electrode 110 extended including multiple D2 in a second direction.
Second touch control electrode array, the second touch control electrode 120 including M row N column, wherein second touch control electrode array
Line direction is parallel to first direction D1.
Orthographic projection from each first touch control electrode 110 to second touch control electrode array and second touch control electrode array wherein extremely
Each second touch control electrode 120 of few column is at least partly overlapped.
The touch-control display panel of the present embodiment further includes multiple switch unit 130.It is shown in Figure 2, it is driven for the second touch-control
Connection relationship diagram between the wherein a line second touch control electrode 120 and switch unit 130 of moving electrode array.
The connection between second touch control electrode 120 and switch unit 130 is further described below in conjunction with Fig. 1 and Fig. 2
Relationship.
As shown in Fig. 2, each switch unit 130 includes control terminal 131.Switch unit 130 is used for the input in control terminal 131
Each second touch control electrode 120 in second touch control electrode array with a line is electrically connected to each other or is disconnected under the control of signal.
So, when each switch unit 130 for the second touch control electrode 120 for connecting certain a line is in the control of control terminal 131
When being disconnected under system, mutually insulated between each second touch control electrode 120 of the row, when carrying out touch detection, the second touch-control electricity
Each second touch control electrode 120 in the array of pole may operate in from appearance detection pattern.In other words, each second touch control electrode 120
Can be with independently received touch drive signal, and independently acquire touch sensible signal.
On the other hand, when each switch unit 130 for the second touch control electrode 120 for connecting certain a line is in the control of control terminal 131
It when the lower conducting of system, is electrically connected to each other between each second touch control electrode 120 of the row, the second touch control electrode 120 of the row can be with
Work in mutual tolerance detection pattern.When carrying out touch detection, the second touch control electrode 120 of the row can receive touch-control driving simultaneously
Signal, for example, one of second touch control electrode of the row receives touch drive signal, and should by switch unit 130
Touch drive signal is transmitted to other second touch control electrodes 120 of the row.Meanwhile first touch control electrode 110 can acquire touch
Inductive signal, by detect each first touch control electrode 110 and between the second touch control electrode 120 of the row mutual capacitance variation come
Judge whether there is touch.
It can be seen from the above that the touch-control display panel of the present embodiment, under the control of each switch unit 130,
Each second touch control electrode 120 of same a line can be connected or disconnected with, to realize that touch-control display panel is detected from appearance
Mutual switching under framework and mutual tolerance detection framework, so that the touch-control display panel of the present embodiment had both possessed from appearance testing stand
The advantages that structure touch detection speed is fast possesses the advantages that mutual tolerance detection framework accuracy is high again.
It returns with continued reference to shown in Fig. 1, the touch-control display panel of the present embodiment can further include integrated circuit
140, a plurality of first touching signals line (not shown) and a plurality of second touching signals line 150.
Wherein, integrated circuit (IC) 140 can be used for applying touch-control to each second touch control electrode 120 during touch-control scans and drive
Dynamic signal, and receive the touch sensible signal that each first touch control electrode 110 or each second touch control electrode 120 acquire.
Each first touching signals line (not shown) is for connecting integrated circuit 140 and first touch control electrode 110.Each
Two touching signals lines 150 are for connecting integrated circuit 140 and a second touch control electrode 120.
In some optional implementations of the present embodiment, as shown in Fig. 2, each switch unit 130 can connect it is same
The adjacent second touch control electrode 120 of any two in capable second touch control electrode.So, pass through the same switch unit
130 connect the adjacent pairs in a line second touch control electrode 120, it is possible to reduce the second touch control electrode 120 that is electrically connected two-by-two
Between track lengths, and then reduce the chip area of touch-control display panel shared by these cablings, reduce to display effect not
Good influence.
In some optional implementations of the touch-control display panel of the present embodiment, each switch unit can be brilliant for film
Body pipe.In these optional implementations, the control terminal of switch unit can be the grid of thin film transistor (TFT), and film crystal
The source electrode and drain electrode of pipe can be used for being electrically connected with any two second touch control electrode in the second touch control electrode of same a line respectively.
Since the fast response time of thin film transistor (TFT) can make this reality using thin film transistor (TFT) as switch unit
The sensitivity of touch detection for applying the touch-control display panel of example is higher, response speed when from the switching between mutual tolerance framework is held
Faster.
It should be noted that in the touch-control display panel of the present embodiment, the thin film transistor (TFT) as switch unit can be
PMOS transistor or NMOS transistor.
In addition, in some optional implementations, each switch unit of the touch-control display panel of each embodiment of the application
130 control terminal 131 can be electrically connected with integrated circuit 140.
In these optional implementations, integrated circuit 140 can be used for the touch detection mould based on touch-control display panel
Formula exports gate control signal to the control terminal 131 of each switch unit 130 or disconnects control signal.Herein, touch detection mould
Formula for example can include but is not limited to from appearance detection pattern and mutual tolerance detection pattern.
In addition, in the application scenes of these optional implementations, as shown in Figure 1, with each the second touch-control of row electricity
The control terminal of the corresponding switch unit 130 in pole 120 can be electrically connected with the unlike signal end of integrated circuit 140 respectively, and such one
Come, integrated circuit 140 can send control to the control terminal 131 for the switch unit 130 for connecting each row second touch control electrode 120 respectively
Signal processed, to control the on, off of these switch units 130 respectively.In these application scenarios, as switch unit
In 130 thin film transistor (TFT), the thin film transistor (TFT) for connecting with a line second touch control electrode 120 can be all NMOS transistor or
Person is all PMOS transistor.
Alternatively, in other application scenarios of these optional implementations, it is corresponding with each row second touch control electrode
The control terminal of switch unit can be electrically connected with the same signal end of integrated circuit, and so, each control terminal can be by collecting
It is controlled at the output signal of the same signal end of circuit, so as to reduce the port number of integrated circuit and mitigate collection
At the computational burden of circuit.In these application scenarios, as whole thin film transistor (TFT)s of switch unit in touch-control display panel
It can be all NMOS transistor or be all PMOS transistor.Hereinafter, illustrating.
It is shown in Figure 3, it is the schematic diagram of another embodiment of the touch-control display panel of the application.
Similar with embodiment shown in FIG. 1, the touch-control display panel of the present embodiment equally includes multi-strip scanning line, a plurality of number
According to line, the first touch control electrode layer, second touch control electrode array, multiple switch unit 330 etc..In addition, the touch-control of the present embodiment is aobvious
Show that panel equally can also include integrated circuit 340, the first touching signals line, second touching signals line 350 etc..And these components
Structure it is identical as embodiment illustrated in fig. 1.
Unlike embodiment shown in FIG. 1, the touch-control display panel of the present embodiment further comprises that grid displacement is posted
Storage 360.Gate shift register 360 includes multiple cascade shifting deposit units, and each scan line is posted with the displacement of wherein level-one
Output end (such as Si1, Si2, Si3 ... Si of memory cellM-1、SiM) be electrically connected to receive scanning signal.
In the present embodiment, switch unit 330 equally can be thin film transistor (TFT).Thin film transistor (TFT) includes grid, the first pole
With the second pole.
With in a line, the grid for the thin film transistor (TFT) that the second touch control electrode 320 adjacent with any two is electrically connected with
It is electrically connected with level-one shifting deposit unit, the first pole and the second pole are electrically connected with two adjacent second touch control electrodes 320 respectively.
For example, in the present embodiment, the grid of the thin film transistor (TFT) of the two neighboring second touch control electrode 320 for being electrically connected the first row with
The output end Si1 electrical connection of the i-th 1 grades of shifting deposit units in shift register.Similarly, for being electrically connected the adjacent of M row
I-th in the grid and shift register of the thin film transistor (TFT) of two second touch control electrodes 320MThe output end of grade shifting deposit unit
SiMElectrical connection.
In addition, a second touch control electrode close to shifting deposit unit is electrically connected with shifting deposit unit in a line.
For example, in a line, the adjacent second touch control electrode 320 of any two is electric in some optional implementations
The grid of the thin film transistor (TFT) of connection is electrically connected by the first gate control circuit with corresponding shifting deposit unit, and same a line
In, a second touch control electrode 320 close to shifting deposit unit passes through the second gate control circuit and shifting deposit unit electricity
Connection.
It is shown in Figure 4, it is the first gate control circuit, the second gate control circuit and a line second of the present embodiment
The schematic diagram of touch control electrode.
In Fig. 4, the first gate control circuit L1 includes the first NAND gate 401 and the first NOT gate 402.
Wherein, the output end of the first input end with corresponding shifting deposit unit of the first NAND gate 401 is (for example, the i-th 1
The output end Si1 of pole shifting deposit unit) electrical connection, the gating control of the second input terminal and integrated circuit of the first NAND gate 401
Signal end SWITCH electrical connection processed.
The input terminal of first NOT gate 402 is electrically connected with the output end of the first NAND gate 401, the output end of the first NOT gate 402
It is electrically connected with the grid of corresponding thin film transistor (TFT) 430.In other words, be electrically connected a line in each second touch control electrode 421 it is thin
The grid of film transistor 430 is electrically connected with the output end of the first NOT gate 402.
In addition, the second gate control circuit L2 includes the second NAND gate 403 and the second NOT gate 404.
Wherein, the output end of the first input end with corresponding shifting deposit unit of the second NAND gate 403 is (for example, the i-th 1
The output end Si1 of pole shifting deposit unit) electrical connection, the second input terminal of the second NAND gate 403 and the touch-control of integrated circuit drive
Dynamic signal end TX_CKV electrical connection.The input terminal of second NOT gate 404 is electrically connected with the output end of the second NAND gate 403, and second is non-
The output end of door 404 is electrically connected with corresponding second touch control electrode 421.For example, the output end of the second NOT gate 404 and a line second
Second touch control electrode 421 in touch control electrode 421 near the i-th 1 grades of shifting deposit units is electrically connected.So, second is non-
Cabling between door 404 and second touch control electrode 421 can be correspondingly shorter, so that it is aobvious to touch-control display panel to mitigate the cabling
Show the adverse effect of effect, and mitigates the coupled interference between the cabling and the other cablings and/or electrode of touch-control display panel.
The touch-control display panel of each embodiment of the application is described respectively below in conjunction with the exemplary timing diagram of Fig. 5, Fig. 6
It is respectively at mutual tolerance detection pattern and the working principle from appearance detection pattern.
Firstly, it is shown in Figure 5, it is each to drive when it illustrates the work of the touch-control display panel of the application under mutual tolerance framework
The exemplary timing diagram of dynamic signal.It should be noted that including M second touch control electrode with second touch control electrode array in Fig. 5
T1~T during row TX1~TXM, a frame period (1FRAME) include M touch detectionMWith Y1~Y during M displayM,
And as each thin film transistor (TFT) of switch unit be NMOS transistor for be illustrated.
When touch-control display panel is in mutual tolerance detection pattern, the gate control signal end SWITCH of integrated circuit exports high
Level signal.
(for example, T1~T in Fig. 5 during each touch detectionM), wherein the second touch control electrode of a line can be with
Receive touch drive signal.
Specifically, when touch-control display panel is in mutual tolerance detection pattern, for example, the T1 during touch detection, the i-th 1
Grade shifting deposit unit output control signal Si1 (high level signal), two input terminals of the first NAND gate 401 input high electricity
Ordinary mail number, therefore the output end of the first NAND gate 401 exports low level signal, the first NOT gate 402 exports high level signal.In this way
One, the grid for connecting the thin film transistor (TFT) 430 of each second touch control electrode of the first row receives high level signal, and makes each of the row
Second touch control electrode is electrically connected to each other.Meanwhile the T1 during touch detection, the input termination of the second NAND gate 403
The i-th 1 grades of shifting deposit unit output controls signal Si1 (high level signal) are received, and another input terminal receives touch-control driving letter
Number end TX_CKV output square-wave signal, so, in the high level stage of square-wave signal, the second NAND gate 403 exports low
Level signal, the second NOT gate 404 export high level signal.In the low level stage of square-wave signal, the second NAND gate 403 exports height
Level signal, the second NOT gate 404 export low level signal, so that posting in the row second touch control electrode close to this grade displacement
The second touch control electrode 421 of memory cell receives the square-wave signal as touch drive signal.Since the row second touches during this period
Control electrode is electrically connected to each other, and therefore, the T1 during touch detection, second be electrically connected with the i-th 1 grades of shifting deposit units touches
It controls rows of electrodes and receives touch drive signal.
Meanwhile the T1 during touch detection, the shifting deposit unit being electrically connected with the second touch control electrode of other rows is not
Output control signal, therefore, even if the gate control signal end SWITCH of integrated circuit exports high level signal at this time, with these
Corresponding first gate control circuit of second touch control electrode row still exports low level signal, thus the conduct switch unit of these rows
Thin film transistor (TFT) be not turned on, simultaneously as the shifting deposit unit being electrically connected with these rows does not export control signal, no matter touch
The square-wave signal for controlling driving signal end TX_CKV output is high level or low level, and the second NOT gate 404 exports low level letter
Number.
And so on, (T2~T during other touch detectionM), wherein second touch-control of a line in the 2nd~the M row
Electrode can be to receive touch drive signal during touch detection wherein, to complete touch detection.
In addition, T1~T during each touch detection in frame periodM, the first touch control electrode RX acquires touch sensible
Signal.According to collected touch sensible signal, it can determine whether touch-control display panel has touch, touch location wherein.
Then, continuing with shown in Figure 6, it illustrates the work of the touch-control display panel of the application under holding framework
When, the exemplary timing diagram of each driving signal.
When touch-control display panel work is when from holding under framework, a frame period (1FRAME) may include k touch inspection
Survey stage T1~TKAnd k display stage Y1~YK, herein, K is positive integer, and K >=1.The gating of integrated circuit controls letter
Number end SWITCH and touch drive signal end TX_CKV export low level signal.
So, control letter whether is exported with each row second touch control electrode TX shifting deposit unit being electrically connected
Number, the first gate control circuit, the second gate control circuit export low level signal, and the second touch control electrode with a line is mutual
Insulation.(T1~T during each touch detection in a frame period (1FRAME)K), each second touching signals line can be with
Apply touch drive signal to each second touch control electrode being electrically connected, and receives the touch sense of each second touch control electrode acquisition
Induction signal.According to collected touch sensible signal, it can determine whether touch-control display panel has touch, touch location at what
Place.
In some optional implementations of the touch-control display panel of each embodiment of the application, such as in Fig. 1 and Fig. 3
One touch control electrode 110,310 can be wire mesh electrode.For example, the first touch control electrode 110,310 can be by multiple metals
The mesh electrode that grid is interconnected to form.Using the first metal net shaped touch control electrode, resistance value is smaller, collected touching
The signal decaying for touching inductive signal is also smaller, and correspondingly the signal-to-noise ratio of touch sensible signal is higher, so that the precision of touch detection
It is higher.
It is shown in Figure 7, for when touch-control display panel is liquid crystal display panel, the one of the touch-control display panel of the application
The schematic architectural diagram of a embodiment.
Touch-control display panel includes array substrate 720 and the color membrane substrates being oppositely arranged with array substrate 720 710.
Wherein, the first touch control electrode layer is arranged on color membrane substrates 710, and second touch control electrode array is arranged in array substrate
On 720.
In some optional implementations, the first touch control electrode layer may be provided at color membrane substrates 710 far from array substrate
720 side (as shown in fig. 7, upper surface that color membrane substrates 710 are arranged in the first touch control electrode layer), and second touch control electrode battle array
Column can be set in array substrate 720 towards the side of color membrane substrates 710.
In addition, being additionally provided with multi-strip scanning line (not shown) in array substrate 720 and multiple data lines (are not shown in figure
Out).
Wherein, each scan line can extend along first direction D1, and each data line D2 can extend in a second direction.Second direction
D2 can be the extending direction of the first touch control electrode 711.
In some optional implementations, second touch control electrode 721 can be multiplexed with public electrode in the display stage.?
In these optional implementations, in the display stage, integrated circuit 722 can be by the second touching signals line 723 to each second
Touch control electrode 721 transmits public voltage signal, so that the liquid crystal layer (figure being formed between color membrane substrates 710 and array substrate 720
In be not shown) in the electric field action that can be formed between public electrode and pixel electrode (not shown) of liquid crystal molecule under
Deflection, to realize the display of predetermined picture.
In addition, being connected to second touch control electrode when the work of the touch-control display panel of the present embodiment is when from detection pattern is held
Switch unit between 721 may be at off-state, and integrated circuit 722 can be by the second touching signals line 723 to each
Two touch control electrodes 721 apply touch drive signal and receive the touch sensible signal that each second touch control electrode 721 acquires.
And when the touch-control display panel of the present embodiment work in mutual tolerance detection pattern, be connected to second touch control electrode 721
Between switch unit may be on state.Integrated circuit 722 can be applied with timesharing to the second touch control electrode 721 of each row
Touch drive signal (for example, touch drive signal is directly applied to the second touch control electrode 721 of each row by each signal end, or
Person applies touch drive signal to the second touch control electrode 721 of each row by shift register), and pass through flexible circuit board
The touch sensible signal that first touch control electrode 711 acquires is transmitted to integrated circuit 722 by 713.So, integrated circuit
722 can determine whether the position for occurring to touch and touch based on collected touch sensible signal.
Disclosed herein as well is a kind of touch control display apparatus, as shown in Figure 8.Wherein, touch control display apparatus 800 may include
Touch-control display panel as described above.It will be appreciated by those skilled in the art that touch control display apparatus is in addition to including as described above
It can also include some other well known structures except touch-control display panel.It, will no longer in order not to obscure the emphasis of the application
Structure well known to these is described further.
The touch control display apparatus of the application can be any device comprising touch-control display panel as described above, including but
Be not limited to cellular mobile phone as shown in Figure 8, tablet computer, computer display, be applied to intelligent wearable device on
Display, applied to display device on the vehicles such as automobile etc..As long as touch control display apparatus contains the application public affairs
The structure for the touch-control display panel opened just has been contemplated as falling within the protection scope of the application.
It is shown in Figure 9, it is the schematic flow of one embodiment of the driving method of the touch-control display panel of the application
Figure.The driving method of the present embodiment can be used for driving the touch-control display panel of any one embodiment description as above.
The driving method of the present embodiment includes:
Step 910, judge the touch detection mode of touch-control display panel, touch detection mode include from hold detection pattern and
Mutual tolerance detection pattern.
In some optional implementations, such as can be from external control module to the integrated circuit of touch-control display panel
Control instruction is sent, to control the touch detection mode of touch-control display panel.
When touch-control display panel is in from appearance detection pattern, then in step 920, each switch unit shutdown is controlled, and
Apply touch drive signal respectively to each second touch control electrode during touch-control scanning.
When touch-control display panel is in from when holding detection pattern, the driving method of the present embodiment be can further include:
During touch-control scanning, the touch sensible signal of second touch control electrode acquisition is received.
So, the touch sensible signal that integrated circuit can be acquired based on second touch control electrode is determined to touch position
It sets.
It may include m during touch-control scanning within a frame period when touch-control display panel is in mutual tolerance detection pattern
During a touch-control scanning, wherein m is integer, and m > 1.
At this point, the driving method of the present embodiment can further include:
Step 930: in during i-th of touch-control scanning in a frame period, to the jth row of second touch control electrode array
Second touch control electrode applies touch drive signal, and receives the touch sensible signal of each first touch control electrode acquisition, wherein 1≤i,
j≤m。
The driving method of the present embodiment, according to used by touch-control display panel touch detection mode are correspondingly adjusted
The implementation of whole touch detection, so that touch-control display panel is in mutual capacitance type touch detection framework and self-tolerant touch detection framework
Between switch, to promote the touch detection accuracy and sensitivity of touch-control display panel in the presence of a harsh environment, and make touch-control aobvious
Show that panel had not only possessed the advantages that fast from appearance detection framework touch detection speed but also possessed the advantages that mutual tolerance detection framework accuracy is high.
It will be appreciated by those skilled in the art that invention scope involved in the application, however it is not limited to above-mentioned technical characteristic
Specific combination made of technical solution, while should also cover in the case where not departing from the inventive concept, by above-mentioned technology
Feature or its equivalent feature carry out any combination and other technical solutions for being formed.Such as features described above and disclosed herein
(but being not limited to) have the technical characteristic of similar functions replaced mutually and the technical solution that is formed.
Claims (13)
1. a kind of touch-control display panel characterized by comprising
The a plurality of scan line extended in a first direction；
The a plurality of data line extended in a second direction；
First touch control electrode layer, including multiple the first touch control electrodes extended in a second direction；
Second touch control electrode array, the second touch control electrode including M row N column, wherein the line direction of second touch control electrode array is flat
Row is in the first direction；
Orthographic projection and the second touch control electrode array of each first touch control electrode to the second touch control electrode array
Each second touch control electrode of wherein at least one column is at least partly overlapped；
Multiple switch unit, the switch unit is thin film transistor (TFT), for by each second touch control electrode phase of same a line
Mutually it is connected or disconnected with；
The touch-control display panel further includes gate shift register, and the gate shift register includes multiple cascade displacements
Deposit unit, each scan line are electrically connected with the output end of shifting deposit unit described in wherein level-one to receive scanning signal；
The thin film transistor (TFT) includes grid, the first pole and the second pole；
With in a line, the grid of the thin film transistor (TFT) of the adjacent second touch control electrode electrical connection of any two is equal
It is electrically connected with shifting deposit unit described in same level-one, first pole and second pole are respectively with two adjacent described second
Touch control electrode electrical connection；
With in a line, a second touch control electrode close to the shifting deposit unit is electrically connected with the shifting deposit unit
It connects.
2. touch-control display panel according to claim 1, which is characterized in that further include:
Integrated circuit for applying touch drive signal to each second touch control electrode during touch-control scanning, and receives each
First touch control electrode or the touch sensible signal of each second touch control electrode acquisition；
A plurality of first touching signals line, each first touching signals line is for connecting the integrated circuit and first touch-control
Electrode；
A plurality of second touching signals line, each second touching signals line is for connecting the integrated circuit and second touch-control
Electrode.
3. touch-control display panel according to claim 2, it is characterised in that:
In second touch control electrode array, with any two in the second touch control electrode of a line, adjacent second touch control electrode passes through
The switch unit is electrically connected to each other.
4. touch-control display panel according to claim 2, it is characterised in that:
With in a line, the grid of the thin film transistor (TFT) of the adjacent second touch control electrode electrical connection of any two is logical
The first gate control circuit is crossed to be electrically connected with the corresponding shifting deposit unit；
First gate control circuit includes the first NAND gate and the first NOT gate；
Wherein, the first input end of first NAND gate is electrically connected with the output end of the corresponding shifting deposit unit, institute
The second input terminal for stating the first NAND gate is electrically connected with the gate control signal end of the integrated circuit；
The input terminal of first NOT gate is electrically connected with the output end of first NAND gate, the output end of first NOT gate with
The grid of the corresponding thin film transistor (TFT) is electrically connected.
5. touch-control display panel according to claim 4, it is characterised in that:
With in a line, close to the shifting deposit unit a second touch control electrode by the second gate control circuit with
The shifting deposit unit electrical connection；
Second gate control circuit includes the second NAND gate and the second NOT gate；
Wherein, the first input end of second NAND gate is electrically connected with the output end of the corresponding shifting deposit unit, institute
The second input terminal for stating the second NAND gate is electrically connected with the touch drive signal end of the integrated circuit；
The input terminal of second NOT gate is electrically connected with the output end of second NAND gate, the output end of second NOT gate with
The corresponding second touch control electrode electrical connection.
6. touch-control display panel according to claim 5, it is characterised in that:
The integrated circuit controls the gate control signal end for the touch detection mode based on the touch-control display panel
Output gate control signal disconnects gate control signal to control each switching means conductive or disconnection of same a line；
Wherein, the touch detection mode includes from appearance detection pattern and mutual tolerance detection pattern.
7. touch-control display panel according to claim 1, it is characterised in that:
First touch control electrode is wire mesh electrode.
8. according to touch-control display panel described in claim 2-6 any one, it is characterised in that:
The touch-control display panel includes array substrate and the color membrane substrates that are oppositely arranged with the array substrate；
Wherein, first touch control electrode layer is arranged on the color membrane substrates, and the second touch control electrode array is arranged in institute
It states in array substrate.
9. touch-control display panel according to claim 8, it is characterised in that:
The second touch control electrode is multiplexed with public electrode during display；
The integrated circuit is also used to during the display to each second touch control electrode outputting common voltage signal.
10. a kind of driving method of touch-control display panel, for driving touch-control display surface described in any one of claim 1-9
Plate, which is characterized in that the described method includes:
Judge that the touch detection mode of the touch-control display panel, the touch detection mode include from appearance detection pattern and mutual tolerance
Detection pattern；
If the touch-control display panel is in from detection pattern is held, each switch unit shutdown is controlled, and during touch-control scanning
Apply touch drive signal respectively to each second touch control electrode.
11. according to the method described in claim 10, it is characterized by:
If the touch-control display panel is in from appearance detection pattern, the driving method further include:
During touch-control scanning, the touch sensible signal of each second touch control electrode acquisition is received.
12. according to the method described in claim 10, it is characterized in that, the method also includes:
If the touch-control display panel is in mutual tolerance detection pattern, controls and be electrically connected the second touch control electrode with a line
Each switching means conductive；
During i-th of touch-control scanning in a frame period, to the jth row second touch control electrode of second touch control electrode array
Apply touch drive signal, and receives the touch sensible signal of each first touch control electrode acquisition；
Wherein, during including m touch-control scanning during the touch-control scanning in a frame period, m is integer and m > 1,1≤i, j
≤m。
13. a kind of touch control display apparatus, which is characterized in that including touch-control display surface as described in any one of claims 1-9
Plate.
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| CN107515696B (en) * | 2017-08-31 | 2020-11-13 | 北京集创北方科技股份有限公司 | Touch detection method and touch module |
| JP6921978B2 (en) | 2017-11-01 | 2021-08-18 | 株式会社ワコム | Position detection system and display device control circuit |
| CN108459772B (en) * | 2018-03-26 | 2021-05-11 | 京东方科技集团股份有限公司 | Touch module, driving method thereof and display device |
| CN112673307B (en) * | 2019-07-31 | 2023-10-17 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and display panel |
| CN111240511B (en) * | 2019-12-31 | 2022-10-04 | 厦门天马微电子有限公司 | Display device and driving method thereof |
| CN114464119B (en) | 2020-11-10 | 2024-01-16 | 北京京东方显示技术有限公司 | Flip chip film, display substrate, display device and driving method of display device |
| CN112882610B (en) * | 2021-03-17 | 2024-03-26 | 厦门天马微电子有限公司 | Driving method and driving circuit of touch display panel and touch display device |
| CN114115613B (en) * | 2021-10-28 | 2023-12-15 | 广州国显科技有限公司 | Touch screen, touch positioning method and display device |
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