CN106775176A - Self-tolerant touch-control display module, display drive method and touch display unit - Google Patents
Self-tolerant touch-control display module, display drive method and touch display unit Download PDFInfo
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- CN106775176A CN106775176A CN201710078759.5A CN201710078759A CN106775176A CN 106775176 A CN106775176 A CN 106775176A CN 201710078759 A CN201710078759 A CN 201710078759A CN 106775176 A CN106775176 A CN 106775176A
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- touch
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Classifications
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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
- 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
-
- 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
-
- 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
The present invention provides a kind of self-tolerant touch-control display module, display drive method and touch display unit.The self-tolerant touch-control display module, including gate driving circuit, grid line and data wire；Pixel electrode is provided with the pixel region that the grid line and the data wire are limited；The touch-control time period that the pixel electrode is used to include in each display cycle carries out touch-control sensing；The self-tolerant touch-control display module also includes data drive unit；The data drive unit is connected with the data wire, and the touch-control time period for including in each display cycle sends touch scanning signals to the data wire.Pixel electrode is multiplexed with touch control electrode by the present invention, and data wire is multiplexed with touch-control cabling, can reach touch precision higher, and is not required to additionally add touch-control cabling, it is possible to increase liquid crystal display panel transmitance, raising array yield.
Description
Technical field
The present invention relates to touch display technology field, more particularly to a kind of self-tolerant touch-control display module, display driving side
Method and touch display unit.
Background technology
The implementation method of existing In-cell touch panel is that public electrode is divided into M × N number of square, and M and N is positive integer,
Using each square as touch sensing, touch sensing is connected to by driving chip by M × N number of touch-control cabling.In every frame
During display, driving chip outputting common voltage to touch sensing controls to show；Shown per frame after terminating, driving chip output is high
The touch scanning signals of frequency are to touch sensing detecting touch location.Existing self-tolerant touch-control display module need to be added additionally
Touch-control cabling, can reduce display panel transmitance, reduce array yield, and touch sensing cannot be accomplished into pixel electrode is big
It is small, it is impossible to reach touch precision higher.
The content of the invention
It is a primary object of the present invention to providing a kind of self-tolerant touch-control display module, display drive method and touching display
Device, solving existing self-tolerant touch-control display module need to additionally add touch-control cabling, can reduce display panel transmitance, reduce
Array yield, and touch sensing cannot be accomplished and pixel electrode size, it is impossible to reach the problem of touch precision higher.
In order to achieve the above object, the invention provides a kind of self-tolerant touch-control display module, including gate driving circuit,
Grid line and data wire；Pixel electrode is provided with the pixel region that the grid line and the data wire are limited；The pixel electrode
The touch-control time period for including in each display cycle carries out touch-control sensing；The self-tolerant touch-control display module also includes number
According to driver element；
The data drive unit is connected with the data wire, for touch-control time period for including in each display cycle to
The data wire sends touch scanning signals.
During implementation, self-tolerant touch-control display module of the present invention also includes：Touch detection unit, with the data wire
Connection, for detecting the touch-control sensing signal in data wire feedback described in the touch-control time period, and according to the touch-control sensing
Signal detection touch event.
During implementation, the data drive unit is additionally operable to the display charging interval section included in each display cycle to described
Data wire sends corresponding data voltage；
Within each display cycle, the touch-control time period and display charging interval section are not overlapped.
During implementation, self-tolerant touch-control display module of the present invention, it is characterised in that also including display base plate and public
Electrode；The grid line, the data wire and the pixel electrode are arranged on the display base plate；
The public electrode is located between the pixel electrode and the display base plate.
Display drive method is touched present invention also offers a kind of self-tolerant, above-mentioned self-tolerant is applied to and is touched display mould
Group, each frame time includes multiple display cycles, and in each display cycle, gate driving circuit scans corresponding grid line；It is each
Display cycle includes the touch-control time period；The self-tolerant touches display drive method to be included：
In the touch-control time period, data drive unit sends touch scanning signals to data wire.
During implementation, self-tolerant of the present invention touches display drive method also to be included：In the touch-control time period, touch
Detection unit detects the touch-control sensing signal of the data wire feedback, and according to the touch-control sensing signal detection touch event.
During implementation, each display cycle also includes display charging interval section, within each display cycle, the touch-control time
Section and the display charging interval section are not overlapped；The self-tolerant touches display drive method also to be included：Charged in the display
Time period, the data drive unit sends corresponding data voltage to the data wire.
During implementation, self-tolerant of the present invention touches display drive method also to be included：In each display cycle, grid drives
Dynamic circuit sweeps corresponding line grid line, is all turned on the multiple thin film transistor (TFT)s for controlling and the row grid line is connected, and being located at control should
Capable pixel electrode is connected with corresponding column data line respectively.
Present invention also offers a kind of touch display unit, including above-mentioned self-tolerant touch-control display module.
Compared with prior art, self-tolerant touch-control display module of the present invention, display drive method and touch display
Pixel electrode is multiplexed with touch control electrode by device, and data wire is multiplexed with touch-control cabling, and (the touch-control cabling is for sending touch-control
Scanning signal and receive touch control electrode sensing touch-control sensing signal cabling), solve existing self-tolerant touch-control display module
Touch sensing cannot be accomplished pixel electrode size, it is impossible to reach the problem of touch precision higher, and data wire is multiplexed
It is touch-control cabling, mustn't additionally adds touch-control cabling, solves need in the prior art and additionally add touch-control cabling so as to can reduce
Liquid crystal display panel transmitance, the problem for reducing Array (array) yield.
Brief description of the drawings
Fig. 1 is the structure chart of the self-tolerant touch-control display module described in the embodiment of the present invention；
Fig. 2 is the structure chart of the self-tolerant touch-control display module described in another embodiment of the present invention；
Fig. 3 is the working timing figure of the self-tolerant touch-control display module described in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Self-tolerant touch-control display module described in the embodiment of the present invention, including gate driving circuit, grid line and data wire；Institute
State in the pixel region that grid line and the data wire are limited and be provided with pixel electrode；
The touch-control time period that the pixel electrode is used to include in each display cycle carries out touch-control sensing；The self-tolerant
Touch-control display module also includes data drive unit；
The data drive unit is connected with the data wire, for touch-control time period for including in each display cycle to
The data wire sends touch scanning signals.
In practical operation, the gate driving circuit is used to scan m row grid in the m display cycles of each frame time
Line；M is positive integer；
Pixel electrode is multiplexed with touch control electrode by the self-tolerant touch-control display module described in the embodiment of the present invention, and data wire is multiple
With for touch-control cabling, (the touch-control cabling is for sending touch scanning signals and receiving the touch-control sensing letter that touch control electrode senses
Number cabling), solving existing self-tolerant touch-control display module cannot accomplish pixel electrode size by touch sensing, it is impossible to reach
To the problem of touch precision higher, and data wire is multiplexed with touch-control cabling, mustn't additionally add touch-control cabling, solved existing
Having needs additionally to add touch-control cabling in technology so as to the problem that can be reduced liquid crystal display panel transmitance, reduce array yield.
As shown in figure 1, by taking five-element's grid line and seven column data lines as an example, but it is not limited to this.Marked as G1, G2, G3, G4
It is followed successively by the first row grid line, the second row grid line, the third line grid line, fourth line grid line；Marked as S1, S2, S3, S4, S5, S6, S7
Be followed successively by the first column data line, the second column data line, the 3rd column data line, the 4th column data line, the 5th column data line, the 6th
Column data line, the 7th column data line；It is thin film transistor (TFT) marked as TFT, is pixel electrode marked as PE；
Above five-element grid line and the column data line of the above seven limit pixel region；
Pixel electrode and thin film transistor (TFT) are provided with each pixel region；
The grid of the thin film transistor (TFT) is connected with the grid line, and the source electrode of the thin film transistor (TFT) connects with the data wire
Connect, the drain electrode of the thin film transistor (TFT) is connected with the pixel electrode；
The touch-control time period that the pixel electrode is used to include in each display cycle carries out touch-control sensing；
As shown in figure 1, the self-tolerant touch-control display module also includes data drive unit 11；
The data drive unit 11 respectively with the first column data line S1, the second column data line S2, the 3rd column data line S3,
4th column data line S4, the 5th column data line S5, the 6th column data line S6 and the 7th column data line S7 connection, for each aobvious
Show touch-control time period that the cycle includes to the first column data line S1, the second column data line S2, the 3rd column data line S3, the 4th columns
Touch scanning signals are sent according to line S4, the 5th column data line S5, the 6th column data line S6 and the 7th column data line S7.
Specifically, described self-tolerant touch-control display module also includes：Touch detection unit, is connected with the data wire,
For detecting the touch-control sensing signal in data wire feedback described in the touch-control time period, and examined according to the touch-control sensing signal
Survey touch event.
In practical operation, self-tolerant touch-control display module also includes touch detection unit, and it passes through data wire in touch-control
The touch-control sensing signal that time period feedback pixel electrode is sensed, and according to the touch-control sensing signal detection touch event.
The touch detection unit detects touch event, namely the touch detection unit is according in the touch-control time period
The touch-control sensing signal of data wire feedback judges whether to touch, and when determining touches position in the presence of detection when touching
Put.
As shown in Fig. 2 on the basis of Fig. 1, the self-tolerant touch-control display module also includes touch detection unit 12,
The touch detection unit 12 respectively with the first column data line S1, the second column data line S2, the 3rd column data line S3,
4th column data line S4, the 5th column data line S5, the 6th column data line S6 and the 7th column data line S7 connection, in touch-control
Between the touch-control sensing signal of the section pixel electrode sensing that receives data wire feedback detect touch event.
Specifically, the data drive unit is additionally operable to the display charging interval section included in each display cycle to described
Data wire sends corresponding data voltage；
Within each display cycle, the touch-control time period and display charging interval section are not overlapped.
In the specific implementation, data drive unit is additionally operable to send data voltage in display charging interval section, for showing
Drive.
In practical operation, self-tolerant touch-control display module described in the embodiment of the present invention also includes display base plate and public
Electrode；
The grid line, the data wire and the pixel electrode are arranged on the display base plate；
The public electrode is located between the pixel electrode and the display base plate.In order to avoid public electrode is to pixel
The capacitance shield of electrode, influences touch accuracy, it is necessary to avoid being arranged at public electrode between pixel electrode and display surface, therefore
It is preferred that public electrode is arranged between pixel electrode and display base plate.
Present invention specific embodiment as shown in Figure 2 operationally, as shown in figure 3, G1, G2, G3, G4 are opened line by line；
Each display cycle T includes data voltage retention time t0, touch-control time period t 1 and display charging interval section t2；
In each display cycle,
In touch-control time period t 1, data drive unit scans letter by data wire to the touch-control that pixel electrode sends high frequency
Number, to judge whether to touch and detect touch location；
In display charging interval section t2, data drive unit sends data voltage by data wire to pixel electrode, to enter
Row display is charged；
In figure 3, data voltage retention time t0 is that certain row grid line was turned off to the time of the row data voltage output cut-off,
It act as preventing factor data voltage and long generation of grid line cabling from postponing caused error in charging phenomenon.
The first grid scanning signal for being sent to G1 is shown in Fig. 3, second grid scanning signal, the transmission of G2 is sent to
The 3rd gated sweep signal to G3, the 4th gated sweep signal of G4 is sent to, and is sent to the signal of S1.
Self-tolerant described in the embodiment of the present invention touches display drive method, is applied to above-mentioned self-tolerant and touches display mould
Group, each frame time includes multiple display cycles, and in each display cycle, gate driving circuit scans corresponding grid line；It is each
Display cycle includes the touch-control time period；The self-tolerant touches display drive method to be included：
In the touch-control time period, data drive unit sends touch scanning signals to data wire.
Self-tolerant described in the embodiment of the present invention touches display drive method and pixel electrode is multiplexed with into touch control electrode, data
Line is multiplexed with touch-control cabling, and (the touch-control cabling is for sending touch scanning signals and receiving the touch-control sense that touch control electrode senses
The cabling of induction signal), solving existing self-tolerant touch-control display module cannot accomplish pixel electrode size, nothing by touch sensing
Method reaches the problem of touch precision higher, and data wire is multiplexed with into touch-control cabling, mustn't additionally add touch-control cabling, solves
Need additionally to add touch-control cabling in the prior art so as to reduce liquid crystal display panel transmitance, reduce asking for array yield
Topic.
Self-tolerant described in the embodiment of the present invention touches display drive method also to be included：In the touch-control time period, touch
Detection unit detects the touch-control sensing signal of the data wire feedback, and according to the touch-control sensing signal detection touch event.
Specifically, each display cycle also includes display charging interval section, within each display cycle, the touch-control time
Section and the display charging interval section are not overlapped；Self-tolerant described in the embodiment of the present invention touches display drive method also to be included：
In the display charging interval section, the data drive unit sends corresponding data voltage to the data wire.
Specifically, the self-tolerant described in the embodiment of the present invention touches display drive method also including：In each display cycle,
Gate driving circuit scans corresponding line grid line, is all turned on the multiple thin film transistor (TFT)s for controlling and the row grid line is connected, to control
Pixel electrode positioned at the row is connected with corresponding column data line respectively.
Touch display unit described in the embodiment of the present invention, including above-mentioned self-tolerant touch-control display module.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of self-tolerant touch-control display module, including gate driving circuit, grid line and data wire；The grid line and the data
Pixel electrode is provided with the pixel region that line is limited；Characterized in that, the pixel electrode is used in bag of each display cycle
The touch-control time period for including carries out touch-control sensing；The self-tolerant touch-control display module also includes data drive unit；
The data drive unit is connected with the data wire, for touch-control time period for including in each display cycle to described
Data wire sends touch scanning signals.
2. self-tolerant touch-control display module as claimed in claim 1, it is characterised in that also include：Touch detection unit, with institute
Data wire connection is stated, for detecting the touch-control sensing signal in data wire feedback described in the touch-control time period, and according to described
Touch-control sensing signal detection touch event.
3. self-tolerant touch-control display module as claimed in claim 1 or 2, it is characterised in that the data drive unit is also used
In the display charging interval section included in each display cycle corresponding data voltage is sent to the data wire；
Within each display cycle, the touch-control time period and display charging interval section are not overlapped.
4. self-tolerant touch-control display module as claimed in claim 1 or 2, it is characterised in that also including display base plate and public
Electrode；The grid line, the data wire and the pixel electrode are arranged on the display base plate；
The public electrode is located between the pixel electrode and the display base plate.
5. a kind of self-tolerant touches display drive method, is applied to holding certainly as described in any claim in Claims 1-4
Formula touch-control display module, it is characterised in that each frame time includes multiple display cycles, in each display cycle, raster data model
The corresponding grid line of circuit sweeps；Each display cycle includes the touch-control time period；The self-tolerant touches display drive method to be included：
In the touch-control time period, data drive unit sends touch scanning signals to data wire.
6. self-tolerant as claimed in claim 5 touches display drive method, it is characterised in that also include：In the touch-control
Between section, touch detection unit detects the touch-control sensing signal of data wire feedback, and according to the touch-control sensing signal detection
Touch event.
7. the self-tolerant as described in claim 5 or 6 touches display drive method, it is characterised in that each display cycle also wraps
Display charging interval section is included, within each display cycle, the touch-control time period and display charging interval section are not overlapped；Institute
Stating self-tolerant touch display drive method also includes：In the display charging interval section, the data drive unit is to the number
Corresponding data voltage is sent according to line.
8. the self-tolerant as described in claim 5 or 6 touches display drive method, it is characterised in that also include：In each display
Cycle, gate driving circuit scanning corresponding line grid line is all turned on the multiple thin film transistor (TFT)s for controlling and the row grid line is connected, with
Control is connected with corresponding column data line respectively positioned at the pixel electrode of the row.
9. a kind of touch display unit, it is characterised in that including as described in any claim in Claims 1-4 from holding
Formula touch-control display module.
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| CN201710078759.5A CN106775176B (en) | 2017-02-14 | 2017-02-14 | Self-contained touch display module, display driving method and touch display device |
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| CN201710078759.5A CN106775176B (en) | 2017-02-14 | 2017-02-14 | Self-contained touch display module, display driving method and touch display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106775176B (en) | 2020-06-30 |
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