CN104216561A - Touch control display device and driving method of touch control display device - Google Patents
Touch control display device and driving method of touch control display device Download PDFInfo
- Publication number
- CN104216561A CN104216561A CN201410419204.9A CN201410419204A CN104216561A CN 104216561 A CN104216561 A CN 104216561A CN 201410419204 A CN201410419204 A CN 201410419204A CN 104216561 A CN104216561 A CN 104216561A
- Authority
- CN
- China
- Prior art keywords
- public electrode
- touch
- group
- control
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
-
- 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
-
- 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
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a touch control display device and a driving method of the touch control display device, wherein the touch control display device comprises a plurality of public electrodes in matrix arrangement and a driving chip, wherein the public electrodes are divided into W groups, each group comprises M line of public electrodes, and each line comprises N public electrodes, wherein the W is greater than or equal to 2, the M is greater than or equal to 1, and the N is greater than or equal to 1; the driving chip is used for exerting touch control driving signals on a group of public electrodes line by line in the touch control time period of the current frame and exerting the touch control driving signals on one group of public electrodes line by line in the touch control time period of a next frame, wherein the public electrodes of the touch control driving signals exerted in the touch control time periods of the current frame and the next frame do not belong to one group. The touch control display device and the driving method provided by the invention have the advantages that the touch control driving on the public electrodes in different regions in the adjacent touch control time periods can be realized, the display uniformity is improved, and the problem that liquid crystal molecules easily age is solved.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of touch control display apparatus and driving method thereof.
Background technology
By touch-screen and display screen being fit together in prior art, or embedded touch (In Cell Touch) technology is adopted to realize the touch controllable function of display device.Embedded touch technology is integrated in display screen inside by touch control component, makes display screen inherently have the technology of touch controllable function.Embedded touch display device has the manufacture that can complete touch control component in touch control display apparatus standard processing procedure, do not have the problem of laminating and contraposition, product is more frivolous, without the need to frame, can reach the plurality of advantages such as whole plane design, be one of focus of research in current field.
In embedded touch display device, usually can realize embedded touch function by the mode of public electrode being carried out to time-sharing multiplex.Detailed process is: be divided into display driver period and touch-control to drive the period time of a frame, within the display driver period, all public electrodes are applied to the public electrode voltages signal carried out needed for picture display, drive in the period at touch-control, public electrode in specific region is carried out to the scanning of drive wire, the public electrode that touch-control drives is had neither part nor lot in all the other and still applies the public electrode voltages signal that carries out needed for picture display, thus achieve the function of picture display and touch-control driving.
Owing to driving in the period at touch-control, have neither part nor lot in touch-control drive public electrode on voltage for carrying out the public electrode voltages signal needed for picture display, the picture display of respective regions is normal, and the voltage participated on the public electrode of touch-control driving is high voltage, normally can shows the picture of respective regions and cause certain adverse effect.When within the time of successive frame, when the touch-control of every frame drives the period all to apply high voltage to the public electrode of fixed area, cause the heterogeneity that picture shows.Meanwhile, owing to continuing to apply high voltage to the public electrode of the same area, the liquid crystal molecule aging speed in this region can be caused to accelerate.
Summary of the invention
For overcoming above-mentioned defect of the prior art, technical matters to be solved by this invention is: provide a kind of touch control display apparatus and driving method thereof, to solve embedded touch touch control display apparatus picture display heterogeneity and the fast problem of liquid crystal molecule aging speed.
For achieving the above object, the present invention adopts following technical scheme:
A kind of touch control display apparatus, comprising: multiple public electrodes of matrix form arrangement, and described multiple public electrode is divided into W group, and often group comprises the capable public electrode of M, and often row comprises N number of public electrode, wherein, W≤2, M≤1, N≤1, the W group drive wire connected one to one with the described public electrode of W group, often group comprises N bar drive wire, described N bar drive wire is connected with described N number of public electrode respectively, and the public electrode being positioned at same row in public electrode described in a group is connected with drive wire described in same, the driving chip be connected with described W group drive wire, described driving chip is used in the display time interval of present frame, utilize the described drive wire of W group to apply public electrode voltages signal to the described public electrode of W group simultaneously, within the touch-control period of described present frame, utilize drive wire described in a group to apply touch-control drive singal line by line to public electrode described in a group of connecting corresponding to it, in the display time interval of next frame, utilize the described drive wire of W group to apply described public electrode voltages signal to the described public electrode of W group simultaneously, within the touch-control period of described next frame, utilize drive wire described in a group to apply described touch-control drive singal line by line to public electrode described in a group of connecting corresponding to it, wherein, the public electrode being applied in the public electrode of described touch-control drive singal in the touch-control period of described present frame and being applied in described touch-control drive singal in the touch-control period of described next frame belongs to different groups.
Preferably, the arrangement of described multiple public electrode is: comprise multiple repetitive, and each described repetitive comprises the capable public electrode of W, and the capable public electrode of described W belongs to described W group public electrode respectively.
Preferably, described multiple public electrode comprises the odd-numbered line public electrode and even number line public electrode that are alternately arranged; When described multiple public electrode is divided into two groups, wherein one group only comprises described odd-numbered line public electrode, and another group only comprises described even number line public electrode.
Preferably, described driving chip also within the touch-control period of every frame, to not applied described public electrode voltages signal by the public electrode applied line by line included by the group of described touch-control drive singal simultaneously.
Preferably, described touch control display apparatus also comprises: with the described public electrode of W group W group induction electrode one to one, often group comprises M bar induction electrode, and described M bar induction electrode is overlapping with the capable public electrode of described M respectively; Described driving chip also for reading the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with public electrode described in a group that is applied in described touch-control drive singal within the touch-control period of every frame.
Preferably, described driving chip comprises sequential control circuit, and described sequential control circuit is for controlling the input timing of described public electrode voltages signal and described touch-control drive singal.
Present invention also offers a kind of driving method of touch control display apparatus, be applied to above-described touch control display apparatus, described driving method comprises: in the display time interval of present frame, apply public electrode voltages signal to W group public electrode simultaneously; Touch-control drive singal is applied line by line to public electrode described in a group within the touch-control period of described present frame; Apply described public electrode voltages signal to the described public electrode of W group in the display time interval of next frame simultaneously; Described touch-control drive singal is applied line by line to public electrode described in a group within the touch-control period of described next frame; Wherein, the public electrode being applied in the public electrode of described touch-control drive singal in the touch-control period of described present frame and being applied in described touch-control drive singal in the touch-control period of described next frame belongs to different groups.
Preferably, multiple public electrodes of described touch control display apparatus comprise the odd-numbered line public electrode and even number line public electrode that are alternately arranged, described multiple public electrode is divided into two groups, wherein one group only comprises described odd-numbered line public electrode, another group only comprises described even number line public electrode, and described driving method specifically comprises: in the display time interval of odd-numbered frame, apply described public electrode voltages signal to described multiple public electrode simultaneously; Described touch-control drive singal is applied line by line to described odd-numbered line public electrode within the touch-control period of odd-numbered frame; Apply described public electrode voltages signal to described multiple public electrode in the display time interval of even frame simultaneously; Described touch-control drive singal is applied line by line to described even number line public electrode within the touch-control period of even frame.
Preferably, described driving method also comprises: within the touch-control period of every frame, to not applied described public electrode voltages signal by the public electrode applied line by line included by the group of described touch-control drive singal.
Preferably, described driving method also comprises: within the touch-control period of every frame, read the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with public electrode described in a group that is applied in described touch-control drive singal.
In touch control display apparatus provided by the present invention and driving method thereof, public electrode is divided into many groups, the often every all corresponding drive wire of row public electrode in group, often in row, each public electrode is all connected with corresponding drive wire, whole drive wire is connected with a driving chip simultaneously, with the touch-control period at present frame, wherein one group of public electrode is driven, within the touch-control period of next frame, the public electrode of different from the public electrode that present frame drives groups is driven, namely achieve, within the adjacent touch period, touch-control driving is carried out to the public electrode of zones of different, therefore apply high voltage to public electrode to carry out driving and affect phenomenon that respective regions picture normally shows and discontinuously appear at the same area, thus improve the homogeneity of embedded touch touch control display apparatus display.And, the present invention is by within the continuous print touch-control period, to the mode that the public electrode of difference group drives, avoid and continue to apply high voltage to the public electrode of the same area, therefore also just solve by the easily aging problem of the liquid crystal molecule that is continuously applied high-tension fixed area.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural drawing of the touch control display apparatus that Fig. 1 provides for the embodiment of the present invention;
The equivalent circuit diagram of touch-control period in the driving method that Fig. 2 provides for the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, below in conjunction with the accompanying drawing in the embodiment of the present invention, are clearly and completely described the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belong to the scope of protection of the invention.
Embodiments provide a kind of touch control display apparatus, comprising: multiple public electrodes of matrix form arrangement, the plurality of public electrode is divided into W group, and often group comprises the capable public electrode of M, and often row comprises N number of public electrode, wherein, W≤2, M≤1, N≤1, the W group drive wire connected one to one with W group public electrode, often group comprises N bar drive wire, and this N bar drive wire is connected with aforementioned N number of public electrode respectively, and the public electrode being positioned at same row in one group of public electrode is connected with same drive wire, the driving chip be connected with W group drive wire, driving chip is used in the display time interval of present frame, utilize W group drive wire to apply public electrode voltages signal to W group public electrode simultaneously, within the touch-control period of present frame, utilize one group of drive wire to apply touch-control drive singal line by line to the one group of public electrode connected corresponding to it, in the display time interval of next frame, utilize W group drive wire to apply public electrode voltages signal to W group public electrode simultaneously, within the touch-control period of next frame, utilize one group of drive wire to apply touch-control drive singal line by line to the one group of public electrode connected corresponding to it, wherein, the public electrode being applied in the public electrode of touch-control drive singal in the touch-control period of present frame and being applied in described touch-control drive singal in the touch-control period of next frame belongs to different groups.
Due to TFT (Thin Film Transistor, thin film transistor (TFT)) have slight electric leakage when turning off, therefore when within the touch-control period of a frame, although TFT is turned off, but pixel electrode still can have certain voltage, now public electrode is applied to the touch-control drive singal of high level, this region liquid crystal molecule will be made to change from the deflection state needed for normal display, become abnormal, and then harmful effect is produced to the picture display in this region.If all carry out touch-control driving to the public electrode of the same area in the touch-control period of every frame of successive frame picture, so this harmful effect will be accumulated, and causes this regional display to show abnormal; The touch-control period has neither part nor lot in the voltage on the public electrode of touch-control driving is simultaneously that picture normally shows required voltage, and the picture display in region corresponding to this part public electrode is normal; Under normal circumstances, the public electrode that participation touch-control drives and have neither part nor lot in touch-control to drive is staggered, thus normal viewing area and abnormal show region interlock, and causes picture display homogeneity to decline.
The public electrode being different from the part choosing specific region in prior art from whole public electrodes carries out the multiplexing of touch-control driving as drive wire, in the present embodiment, the public electrode be connected with driving chip by drive wire is divided into many groups, within a touch-control period, touch-control driving is carried out to one group of public electrode, utilize control chip to can be controlled in the continuous print touch-control period and touch-control driving is carried out to the public electrode of difference group, thus avoid and continuously touch-control driving is carried out to the public electrode of fixed area, namely achieve and within the touch-control period of successive frame, the region of changing of public electrode is driven, make, in the same area, high level is applied to public electrode and picture is shown to the harmful effect only lasting touch-control period produced, next this harmful effect of touch-control period appears at other region, therefore this harmful effect cannot be accumulated, thus drastically increase embedded touch touch control display apparatus picture display homogeneity, improve picture display effect.
On the other hand, the region of changing of public electrode is driven within the touch-control period of successive frame because the above-mentioned touch control display apparatus in the present embodiment achieves, avoid and continuously the problem that this region liquid crystal molecule is easily aging is caused to the public electrode applying high voltage of fixed area, be equivalent to the liquid crystal molecule harmful effect of high voltage to liquid crystal molecule being evenly distributed to each region, reduce the aging speed of liquid crystal molecule.
In the present embodiment, based on the consideration to touch controllable function homogeneity, the arrangement of multiple public electrode preferably can be made: comprise multiple repetitive to be, each repetitive comprises the capable public electrode of W, and the capable public electrode of this W belongs to W group public electrode respectively, i.e. each row public electrode being evenly distributed on substrate in each group, the public electrode alternating cyclical arrangement of different group different rows.More particularly, if W group public electrode is respectively the 1st group, 2nd group, w group, a line public electrode belonging to the 1st group is Com [1], a line public electrode belonging to the 2nd group is Com [2], a line public electrode belonging to w group is Com [w], then preferably can by Com [1], Com [2], Com [w], Com [1], Com [2], Com [w], order periodically arrange line by line, Com [1], Com [2], Com [w] the altogether capable public electrode of w is a repetitive, multiple repetitive side by side.When carrying out touch-control driving to the public electrode of above-mentioned arrangement, in the touch-control period of the 1st frame, the capable Com of M [1] to the 1st group of public electrode applies touch-control drive singal line by line; In the touch-control period of the 2nd frame, the capable Com of M [2] to the 2nd group of public electrode applies touch-control drive singal line by line; In the touch-control period of w frame, the capable Com of M [w] to w group public electrode applies touch-control drive singal line by line, so far achieves the turntable driving to whole public electrode in continuous print w frame.
Based on above-mentioned preferred version, in the present embodiment, the quantity of the group be divided into by public electrode is not limited, preferably can the touch accuracy required for reality determine.If required touch accuracy is higher, then can the group number of corresponding minimizing public electrode, work as W=2, when being divided into two groups by public electrode, the touch accuracy that can reach is high, concrete, when multiple public electrode is divided into two groups, wherein one group only comprises odd-numbered line public electrode, and another group only comprises even number line public electrode (multiple public electrode comprises the odd-numbered line public electrode and even number line public electrode that are alternately arranged); If required touch accuracy is not very high, then the group number of public electrode can be increased.
Below to be divided into by public electrode two groups (i.e. W=2), and one group only comprises odd-numbered line public electrode, and the situation that another group only comprises even number line public electrode is example, is described the concrete syndeton of the touch control display apparatus that this enforcement provides.
As shown in Figure 1, the public electrode 101 supposing on substrate is arranged into 6 row 3 and arranges, be divided into the two groups: 1st group of public electrode comprising odd-numbered line (i.e. the 1st row, the 3rd row and the 5th row), the 2nd group of public electrode comprising even number line (i.e. the 2nd row, the 4th row and the 6th row), i.e. M=3, N=3.Drive wire comprises 6, the two groups: 1st group is divided into comprise Tx1, Tx2 and Tx3, 2nd group comprises Tx1 ', Tx2 ' and Tx3 ', wherein, Tx1 with belong to the 1st and to arrange and 3 public electrodes belonging to odd-numbered line are connected, Tx2 with belong to the 2nd and to arrange and 3 public electrodes belonging to odd-numbered line are connected, Tx3 with belong to the 3rd and to arrange and 3 public electrodes belonging to odd-numbered line are connected, Tx1 ' with belong to the 1st and to arrange and 3 public electrodes belonging to even number line are connected, Tx2 ' with belong to the 2nd and to arrange and 3 public electrodes belonging to even number line are connected, Tx3 ' with belong to the 3rd and to arrange and 3 public electrodes belonging to even number line are connected.
Within the touch-control period of odd-numbered frame, the 1st group of public electrode participates in touch-control and drives, and by applying touch-control drive singal one by one to Tx1, Tx2 and the Tx3 in the 1st group of drive wire, realizes the driving by column to the public electrode belonging to odd-numbered line in each row.
With in the touch-control period of above-mentioned odd-numbered frame continuous print even frame, 2nd group of public electrode participates in touch-control and drives, by applying touch-control drive singal one by one to Tx1 ', Tx2 ' and the Tx3 ' in the 2nd group of drive wire, realize the driving by column to the public electrode belonging to even number line in each row.
It should be noted that, the present embodiment is only with M=3, the situation of N=3 is example, the structure of touch control display apparatus is described, obviously, in the touch control display apparatus of reality, the number of public electrode is more much more than number illustrated in fig. 1, thus the numerical value of M and N also can much larger than 3, the touch control display apparatus that those skilled in the art can obtain required for reality by foregoing circuit malformation.
In addition, drive wire is connected with the public electrode 101 needing to be connected preferably through via hole, is connected to avoid the public electrode not needing with other to be connected; The intersection of drive wire is provided with insulation course, is electrically connected to avoid each drive wire.
Driving chip described in the present embodiment is also within the touch-control period, to not applied public electrode voltages signal by the public electrode applied line by line included by the group of touch-control drive singal simultaneously, to make the public electrode having neither part nor lot in touch-control driving have the public electrode voltages needed for showing, maintain picture and normally show.
Above-mentioned driving chip preferably can comprise sequential control circuit, and for controlling the input timing of public electrode voltages signal and touch-control drive singal, this sequential control circuit such as can be counter.
After utilizing drive wire to drive public electrode, signal intensity on the public electrode respective regions also needing perception participation touch-control to drive, therefore the touch control display apparatus that the present embodiment provides also comprises: with W group public electrode W group induction electrode one to one, often group comprises M bar induction electrode, this M bar induction electrode respectively with M capable public electrode overlapping; Corresponding, driving chip also for reading the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with being applied in touch-control drive singal one group of public electrode within the touch-control period of every frame.
Specific in touch control display apparatus illustrated in fig. 1, induction electrode comprises 6, is divided into the two groups: 1st group to comprise Rx1, Rx2 and Rx3, corresponding 1st group of public electrode and the 1st group of drive wire, 2nd group comprises Rx1 ', Rx2 ' and Rx3 ', corresponding 2nd group of public electrode and the 2nd group of drive wire.Wherein, 3 public electrodes of Rx1 and the 1st row are overlapping, 3 public electrodes of Rx2 and the 3rd row are overlapping, 3 public electrodes of Rx3 and the 5th row are overlapping, Rx1 ' is overlapping with 3 public electrodes of the 2nd row, Rx2 ' is overlapping with 3 public electrodes of the 4th row, and Rx6 ' is overlapping with 3 public electrodes of the 6th row.
When applying touch-control drive singal to Tx1, during the 1st, 3 and 5 public electrode driving the 1st to arrange, read overlapping with aforementioned 3 public electrodes, on 3 articles of induction electrodes Rx1, Rx2 and Rx3 of the 1st group induced signal line by line, judge whether touch action with the situation of change according to touch-control sensing signal.When other drive wire drives, the course of work of induction electrode in like manner can be derived from, and does not repeat one by one at this.
It should be noted that, mutually insulated between induction electrode and public electrode 101, to form mutual capacitance between.When there being touch action, this mutual capacitance can change, and the touch-control sensing signal read from induction electrode can characterize this mutual capacitance, therefore whether can be had the information of touch-control action by the change of perception touch-control sensing signal.
In addition, in order to clearly indicate the annexation between drive wire and public electrode in Fig. 1, Vitrification management has been carried out to induction electrode.
The touch control display apparatus that the present embodiment provides can be ADS (Advanced Super Dimension Switch, senior super Wei Chang conversion) type, TN (Twisted Nematic, twisted-nematic) type, MVA (Multi-domain Vertical Alignment, multidomain vertical orientation) type, PVA (Patterned Vertical Alignment, image vertical orientation) type, IPS (In-Plane Switching, plane conversion) type, FFS (Fringe Field Switching, boundary electric field switches) the liquid crystal touch control display device of the type such as type, concrete can be any product or parts with Presentation Function such as Electronic Paper, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
The present embodiment additionally provides a kind of driving method of touch control display apparatus, is applied to the touch control display apparatus that the present embodiment provides.This driving method comprises:
Apply public electrode voltages signal to W group public electrode in the display time interval of present frame simultaneously;
Touch-control drive singal is applied line by line to one group of public electrode within the touch-control period of present frame;
Apply public electrode voltages signal to W group public electrode in the display time interval of next frame simultaneously;
Touch-control drive singal is applied line by line to one group of public electrode within the touch-control period of next frame.
Wherein, the public electrode being applied in the public electrode of touch-control drive singal in the touch-control period of present frame and being applied in touch-control drive singal in the touch-control period of next frame belongs to different groups.
Above-mentioned driving method is by driving one group of public electrode in the touch-control period of present frame, other one group of public electrode is driven in the touch-control period of next frame, achieve and within the touch-control period of successive frame, the region of changing of public electrode is driven, avoid and continuously display heterogeneity that touch-control driving brings and the fast problem of liquid crystal molecule aging speed are carried out to the public electrode of fixed area, improve the display homogeneity of embedded touch touch control display apparatus, extend the liquid crystal molecule life-span.
In the driving method that the present embodiment provides, the touch-control period of one frame drives one group of drive wire and corresponding one group of public electrode, as for touch-control period specifically any group drive wire and the driving of public electrode participation touch-control of every frame, the present embodiment does not limit, only otherwise within the touch-control period of continuous print two frame, carry out touch-control to same group of drive wire and public electrode drives.Preferably, the driving method in the present embodiment comprises multiple drive cycle, and each drive cycle comprises continuous print W frame; Within the touch-control period of continuous print W frame, successively touch-control drive singal is applied to the drive wire of W group, to drive the public electrode of W group, identical to make the public electrode of regional be applied in the number of times of high voltage drive, solve display heterogeneity and the aging fast problem of liquid crystal molecule to greatest extent.
Within the touch-control period, while touch-control drive singal is applied to the public electrode participating in touch-control driving, can to not applied public electrode voltages signal by the public electrode applied line by line included by the group of touch-control drive singal within the touch-control period of every frame, to make the public electrode having neither part nor lot in touch-control driving have the public electrode voltages needed for showing, maintain the picture display of touch-control period.
Driving method in the present embodiment also comprises: applying touch-control drive singal to every bar drive wire, during the public electrode be connected with drive wire with driving, the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with the one group of public electrode being applied in touch-control drive singal is read, to have judged whether touch-control action according to the change of this touch-control sensing signal within the touch-control period of every frame.
When multiple public electrodes of driven touch control display apparatus comprise the odd-numbered line public electrode and even number line public electrode that are alternately arranged, multiple public electrode is divided into two groups, wherein one group only comprises odd-numbered line public electrode, when another group only comprises even number line public electrode, its driving method specifically can comprise:
Apply public electrode voltages signal to multiple public electrode in the display time interval of odd-numbered frame simultaneously;
Touch-control drive singal is applied line by line to odd-numbered line public electrode within the touch-control period of odd-numbered frame;
Apply public electrode voltages signal to multiple public electrode in the display time interval of even frame simultaneously;
Touch-control drive singal is applied line by line to even number line public electrode within the touch-control period of even frame.
Below in conjunction with Fig. 1 and Fig. 2, the driving method of this touch control display apparatus is described in detail.
In the display driver period of odd-numbered frame, each drive wire does not have the input of touch-control sensing signal, each induction electrode does not also read signal, each public electrode is all applied in the public electrode voltages signal carried out needed for picture display, in order to form electric field with pixel electrode, liquid crystal molecule is deflected, carries out picture display.After the display driver period terminates, the touch-control entering this frame drives the period, one by one touch-control is carried out to Tx1, Tx2 and the Tx3 in the 1st group of drive wire and drive scanning, to drive the public electrode of the 1st group by column, and in the process to every bar drive wire scanning, complete the reading of the induced signal on Rx1, Rx2 and the Rx3 in the 1st group of induction electrode.As shown in Figure 2, namely for the equivalent circuit diagram of touch-control period, comprise current source A, drive wire resistance RTx, induction electrode resistance RRx, mutual capacitance C, testing circuit and drive wire between drive wire (also public electrode 101) and induction electrode, stray capacitance C ' between induction electrode and public electrode place rete, when a finger is touching the screen, one part of current flows into finger, be equivalent to mutual capacitance C to change, have a small electric current I through induction electrode, this electric current I of induction electrode perception, form touch-control sensing signal and export to testing circuit, this touch-control sensing signal amplifies by testing circuit, the process such as conversion, export an output signal Vout, judge touch action accordingly, gather the coordinate [X of the point that mutual capacitance C changes afterwards, Y], wherein X represents that touch point is positioned at region corresponding to which row public electrode, Y represents which row induction electrode touch point is positioned at.
After time of above-mentioned odd-numbered frame terminates, enter the display driver period with this odd-numbered frame continuous print even frame, each drive wire does not have the input of touch-control sensing signal, each induction electrode does not also read signal, each public electrode is all applied in the public electrode voltages signal carried out needed for picture display, in order to form electric field with pixel electrode, liquid crystal molecule is deflected, carry out picture display.After the display driver period terminates, the touch-control entering this frame drives the period, one by one touch-control is carried out to Tx1 ', Tx2 ' and the Tx3 ' in the 2nd group of drive wire and drive scanning, to drive the public electrode of the 2nd group by column, and in the process to every bar drive wire scanning, complete the reading of the induced signal on Rx1 ', Rx2 ' and the Rx3 ' in the 2nd group of induction electrode; Judge whether each induced signal read changes, and if so, then indicates that touch action occurs, gather the coordinate of the point that induced signal changes, as position, touch point, if not, then represent and do not have touch action to occur.
By said process, in the drive cycle of continuous print odd-numbered frame and an even frame, achieve and alternately touch-control driving is carried out to the public electrode of the 1st group and the 2nd group, and alternately touch-control sensing is carried out to the induction electrode of the 1st group and the 2nd group.
The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a touch control display apparatus, is characterized in that, comprising:
Multiple public electrodes of matrix form arrangement, described multiple public electrode is divided into W group, and often group comprises the capable public electrode of M, and often row comprises N number of public electrode; Wherein, W≤2, M≤1, N≤1;
The W group drive wire connected one to one with the described public electrode of W group, often group comprises N bar drive wire, described N bar drive wire is connected with described N number of public electrode respectively, and the public electrode being positioned at same row in public electrode described in a group is connected with drive wire described in same;
The driving chip be connected with described W group drive wire, described driving chip is used in the display time interval of present frame, utilize the described drive wire of W group to apply public electrode voltages signal to the described public electrode of W group simultaneously, within the touch-control period of described present frame, utilize drive wire described in a group to apply touch-control drive singal line by line to public electrode described in a group of connecting corresponding to it, in the display time interval of next frame, utilize the described drive wire of W group to apply described public electrode voltages signal to the described public electrode of W group simultaneously, within the touch-control period of described next frame, utilize drive wire described in a group to apply described touch-control drive singal line by line to public electrode described in a group of connecting corresponding to it, wherein, the public electrode being applied in the public electrode of described touch-control drive singal in the touch-control period of described present frame and being applied in described touch-control drive singal in the touch-control period of described next frame belongs to different groups.
2. touch control display apparatus according to claim 1, it is characterized in that, the arrangement of described multiple public electrode is: comprise multiple repetitive, and each described repetitive comprises the capable public electrode of W, and the capable public electrode of described W belongs to described W group public electrode respectively.
3. touch control display apparatus according to claim 2, is characterized in that, described multiple public electrode comprises the odd-numbered line public electrode and even number line public electrode that are alternately arranged; When described multiple public electrode is divided into two groups, wherein one group only comprises described odd-numbered line public electrode, and another group only comprises described even number line public electrode.
4. touch control display apparatus according to claim 1, described driving chip also within the touch-control period of every frame, to not applied described public electrode voltages signal by the public electrode applied line by line included by the group of described touch-control drive singal simultaneously.
5. touch control display apparatus according to claim 4, is characterized in that, also comprises: with the described public electrode of W group W group induction electrode one to one, often group comprises M bar induction electrode, and described M bar induction electrode is overlapping with the capable public electrode of described M respectively;
Described driving chip also for reading the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with public electrode described in a group that is applied in described touch-control drive singal within the touch-control period of every frame.
6. the touch control display apparatus according to any one of Claims 1 to 5, is characterized in that, described driving chip comprises sequential control circuit, and described sequential control circuit is for controlling the input timing of described public electrode voltages signal and described touch-control drive singal.
7. a driving method for touch control display apparatus, is characterized in that, is applied to the touch control display apparatus described in any one of claim 1 ~ 6, and described driving method comprises:
Apply public electrode voltages signal to W group public electrode in the display time interval of present frame simultaneously;
Touch-control drive singal is applied line by line to public electrode described in a group within the touch-control period of described present frame;
Apply described public electrode voltages signal to the described public electrode of W group in the display time interval of next frame simultaneously;
Described touch-control drive singal is applied line by line to public electrode described in a group within the touch-control period of described next frame;
Wherein, the public electrode being applied in the public electrode of described touch-control drive singal in the touch-control period of described present frame and being applied in described touch-control drive singal in the touch-control period of described next frame belongs to different groups.
8. driving method according to claim 7, it is characterized in that, multiple public electrodes of described touch control display apparatus comprise the odd-numbered line public electrode and even number line public electrode that are alternately arranged, described multiple public electrode is divided into two groups, wherein one group only comprises described odd-numbered line public electrode, another group only comprises described even number line public electrode, and described driving method specifically comprises:
Apply described public electrode voltages signal to described multiple public electrode in the display time interval of odd-numbered frame simultaneously;
Described touch-control drive singal is applied line by line to described odd-numbered line public electrode within the touch-control period of odd-numbered frame;
Apply described public electrode voltages signal to described multiple public electrode in the display time interval of even frame simultaneously;
Described touch-control drive singal is applied line by line to described even number line public electrode within the touch-control period of even frame.
9. driving method according to claim 7, is characterized in that, also comprises: within the touch-control period of every frame, to not applied described public electrode voltages signal by the public electrode applied line by line included by the group of described touch-control drive singal.
10. driving method according to claim 8, it is characterized in that, also comprise: within the touch-control period of every frame, read the touch-control sensing signal on the M bar induction electrode included by one group of induction electrode corresponding with public electrode described in a group that is applied in described touch-control drive singal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419204.9A CN104216561A (en) | 2014-08-22 | 2014-08-22 | Touch control display device and driving method of touch control display device |
| PCT/CN2014/091127 WO2016026222A1 (en) | 2014-08-22 | 2014-11-14 | Touch control display device and driving method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419204.9A CN104216561A (en) | 2014-08-22 | 2014-08-22 | Touch control display device and driving method of touch control display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104216561A true CN104216561A (en) | 2014-12-17 |
Family
ID=52098130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419204.9A Pending CN104216561A (en) | 2014-08-22 | 2014-08-22 | Touch control display device and driving method of touch control display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104216561A (en) |
| WO (1) | WO2016026222A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679342A (en) * | 2015-03-24 | 2015-06-03 | 京东方科技集团股份有限公司 | In-cell touch screen and driving method for same |
| CN104699341A (en) * | 2015-03-24 | 2015-06-10 | 深圳市华星光电技术有限公司 | Embedded capacitive touch screen and drive method thereof |
| CN104793819A (en) * | 2015-03-31 | 2015-07-22 | 深圳市华星光电技术有限公司 | Self-capacitive touch screen structure, embedded touch screen and liquid crystal display |
| CN104991689A (en) * | 2015-08-10 | 2015-10-21 | 京东方科技集团股份有限公司 | Driving method and device of touch display panel and touch display panel |
| WO2017067074A1 (en) * | 2015-10-22 | 2017-04-27 | 武汉华星光电技术有限公司 | Driving method for in cell type touch control display panel |
| CN106708301A (en) * | 2015-10-22 | 2017-05-24 | 京东方科技集团股份有限公司 | Touch screen and driving method and displaying device thereof |
| CN108255355A (en) * | 2016-12-29 | 2018-07-06 | 南京瀚宇彩欣科技有限责任公司 | In-cell touch display panel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110688030B (en) * | 2019-09-30 | 2022-11-01 | 厦门天马微电子有限公司 | Touch display panel and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236464A (en) * | 2010-04-28 | 2011-11-09 | 索尼公司 | Display apparatus with touch detection functions, driving method, and electronic device |
| JP2013080290A (en) * | 2011-09-30 | 2013-05-02 | Asahi Kasei Electronics Co Ltd | Signal processing circuit for touch sensor, and touch sensor |
| CN103197819A (en) * | 2013-03-29 | 2013-07-10 | 京东方科技集团股份有限公司 | Touch screen and driving method thereof and display device |
| CN203535653U (en) * | 2013-10-11 | 2014-04-09 | 北京京东方光电科技有限公司 | Fingerprint identification element, display screen and display device |
| CN203706191U (en) * | 2014-03-06 | 2014-07-09 | 北京京东方光电科技有限公司 | Touch display device |
| CN103995633A (en) * | 2014-05-06 | 2014-08-20 | 京东方科技集团股份有限公司 | Touch display device and drive method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8804056B2 (en) * | 2010-12-22 | 2014-08-12 | Apple Inc. | Integrated touch screens |
| KR102033614B1 (en) * | 2012-12-13 | 2019-10-17 | 엘지디스플레이 주식회사 | Touch sensor integrated type display device |
| CN203178995U (en) * | 2013-03-29 | 2013-09-04 | 京东方科技集团股份有限公司 | Touch screen and display device |
-
2014
- 2014-08-22 CN CN201410419204.9A patent/CN104216561A/en active Pending
- 2014-11-14 WO PCT/CN2014/091127 patent/WO2016026222A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236464A (en) * | 2010-04-28 | 2011-11-09 | 索尼公司 | Display apparatus with touch detection functions, driving method, and electronic device |
| JP2013080290A (en) * | 2011-09-30 | 2013-05-02 | Asahi Kasei Electronics Co Ltd | Signal processing circuit for touch sensor, and touch sensor |
| CN103197819A (en) * | 2013-03-29 | 2013-07-10 | 京东方科技集团股份有限公司 | Touch screen and driving method thereof and display device |
| CN203535653U (en) * | 2013-10-11 | 2014-04-09 | 北京京东方光电科技有限公司 | Fingerprint identification element, display screen and display device |
| CN203706191U (en) * | 2014-03-06 | 2014-07-09 | 北京京东方光电科技有限公司 | Touch display device |
| CN103995633A (en) * | 2014-05-06 | 2014-08-20 | 京东方科技集团股份有限公司 | Touch display device and drive method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699341A (en) * | 2015-03-24 | 2015-06-10 | 深圳市华星光电技术有限公司 | Embedded capacitive touch screen and drive method thereof |
| CN104679342B (en) * | 2015-03-24 | 2018-10-30 | 京东方科技集团股份有限公司 | A kind of embedded touch screen and its driving method |
| WO2016150081A1 (en) * | 2015-03-24 | 2016-09-29 | 京东方科技集团股份有限公司 | In-cell touch control screen and driving method thereof |
| CN104679342A (en) * | 2015-03-24 | 2015-06-03 | 京东方科技集团股份有限公司 | In-cell touch screen and driving method for same |
| US9939940B2 (en) | 2015-03-24 | 2018-04-10 | Boe Technology Group Co., Ltd. | In-cell touch screen and method for driving the same |
| CN104793819B (en) * | 2015-03-31 | 2017-11-14 | 深圳市华星光电技术有限公司 | Self-capacitance touch screen structure, In-cell touch panel and liquid crystal display |
| CN104793819A (en) * | 2015-03-31 | 2015-07-22 | 深圳市华星光电技术有限公司 | Self-capacitive touch screen structure, embedded touch screen and liquid crystal display |
| CN104991689B (en) * | 2015-08-10 | 2018-04-24 | 京东方科技集团股份有限公司 | Driving method, device and the touch control display apparatus of touch-control display panel |
| CN104991689A (en) * | 2015-08-10 | 2015-10-21 | 京东方科技集团股份有限公司 | Driving method and device of touch display panel and touch display panel |
| US10180760B2 (en) | 2015-08-10 | 2019-01-15 | Boe Technology Group Co., Ltd. | Method and device for driving touch display panel with multiple display time periods and multiple touch time periods in time period for displaying each image frame, and touch display device |
| CN106708301A (en) * | 2015-10-22 | 2017-05-24 | 京东方科技集团股份有限公司 | Touch screen and driving method and displaying device thereof |
| WO2017067074A1 (en) * | 2015-10-22 | 2017-04-27 | 武汉华星光电技术有限公司 | Driving method for in cell type touch control display panel |
| CN106708301B (en) * | 2015-10-22 | 2023-12-15 | 京东方科技集团股份有限公司 | Touch screen, driving method thereof and display device |
| CN108255355A (en) * | 2016-12-29 | 2018-07-06 | 南京瀚宇彩欣科技有限责任公司 | In-cell touch display panel |
| CN108255355B (en) * | 2016-12-29 | 2021-01-15 | 南京瀚宇彩欣科技有限责任公司 | Embedded touch display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016026222A1 (en) | 2016-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104216561A (en) | Touch control display device and driving method of touch control display device | |
| US9851851B2 (en) | Touch display apparatus having multiplexing function of data lines and driving method thereof | |
| US9804714B2 (en) | Control method and device for touch display panel, and display device | |
| US9465496B2 (en) | Capacitive in-cell touch panel and display device | |
| CN105353929B (en) | Display driver IC for display device having integrated touch screen | |
| CN104020904B (en) | Capacitive type embedded touch screen and display device | |
| CN103279237B (en) | A kind of In-cell touch panel and touch display unit | |
| US9671908B2 (en) | Touch panel for multi-touch function of an in cell capacitive touch panel in a twisted nematic mode, driving method thereof, and display device thereof | |
| CN105159513B (en) | Array substrate, self-tolerant touch-control display panel and electronic device | |
| WO2016119333A1 (en) | In-cell touch screen panel and driving method and display device thereof | |
| CN105093593A (en) | Display substrate and testing method and display device thereof | |
| CN104731426A (en) | Display device integrated with touch screen panel and method of driving the same | |
| CN105549792A (en) | Array substrate and display panel | |
| JP2014081935A (en) | Capacitance in-cell touch panel and display device | |
| CN104182108A (en) | Array substrate, touch display device and driving method | |
| CN103914175A (en) | In-cell type touch display device and method of driving the same | |
| CN105511705A (en) | Touch panel, touch display device and driving method of touch panel | |
| CN103092400A (en) | Display device with touch sensor, potential control method, and program | |
| TW201401129A (en) | Display device with an integrated touch screen and method for driving the same | |
| US20120162090A1 (en) | Relay driving of displays | |
| US10481721B2 (en) | Display substrate having touch function, method for driving the same and display apparatus | |
| TWI650603B (en) | TFT substrate and touch display panel using same | |
| CN104461209A (en) | Embedded touch screen and display device | |
| US20180157366A1 (en) | Touch display panel and control circuit thereof | |
| EP3316237B1 (en) | Embedded touch control display screen and drive method therefor, and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |
|
| RJ01 | Rejection of invention patent application after publication |