WO2016155209A1 - 一种触控显示驱动方法、驱动装置及触控显示器 - Google Patents

一种触控显示驱动方法、驱动装置及触控显示器 Download PDF

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Publication number
WO2016155209A1
WO2016155209A1 PCT/CN2015/087691 CN2015087691W WO2016155209A1 WO 2016155209 A1 WO2016155209 A1 WO 2016155209A1 CN 2015087691 W CN2015087691 W CN 2015087691W WO 2016155209 A1 WO2016155209 A1 WO 2016155209A1
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Prior art keywords
touch
electrode
signal
display driving
electrodes
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PCT/CN2015/087691
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English (en)
French (fr)
Inventor
邹祥祥
赵家阳
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京东方科技集团股份有限公司
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Priority to US14/917,370 priority Critical patent/US20170038908A1/en
Publication of WO2016155209A1 publication Critical patent/WO2016155209A1/zh

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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
    • 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
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display driving method, a driving device, and a touch display.
  • the common electrode in the substrate on the side where the light surface is displayed is not only used to drive the liquid crystal deflection, but also can be used as a touch electrode to realize the touch function.
  • the existing in-cell touch display adopts time-sharing driving, that is, displaying for a period of time in one frame time.
  • the driver drives the touch drive for another period of time, thereby avoiding the influence between the display and the touch scan signal, thereby affecting the display effect or the touch effect.
  • the disadvantage is that in high-resolution display touch products, the use of time-sharing drives may result in insufficient drive time or long scan intervals, which may cause various display refresh rates or reduced touch accuracy. problem.
  • the present invention provides a touch display driving method, a driving device, and a touch display.
  • a touch display driving method including:
  • the electrode array including at least one first electrode region and at least one second electrode region, each of the first electrode region or the second electrode region including a plurality of a column electrode, and each of the plurality of columns of electrodes is provided with the display driving signal or the touch scan signal by a corresponding signal line in a column direction;
  • a touch scan signal is input to the at least one second electrode region for touch scanning to provide touch of the touch scan signal. Scanning one of the signal lines for the same column
  • the other electrodes than the electrodes that provide the touch scan signal by the touch scan signal line generate a coupling signal, and the two coupled signals generated by the two touch scan signal lines in the same column cancel each other;
  • a touch scan signal is input to the at least one first electrode region for touch scanning to provide touch of the touch scan signal.
  • One of the scanning signal lines generates a coupling signal for the other electrodes of the same column except the electrode that provides the touch scanning signal by the touch scanning signal line, and the two of the touch scanning signal lines are located in the same column. The two coupled signals cancel each other out.
  • a touch display driving device comprising a control unit, the control unit being configured to:
  • the electrode array including at least one first electrode region and at least one second electrode region, each of the first electrode region or the second electrode region including a plurality of a column electrode, and each of the plurality of columns of electrodes is provided with the display driving signal or the touch scan signal by a corresponding signal line in a column direction;
  • the control unit When the display driving signal is input to the at least one first electrode region for display driving, the control unit inputs a touch scan signal to the at least one second electrode region for touch scanning, and provides the touch scan.
  • One of the touch scan signal lines of the signal generates a coupled signal to the other electrode of the same column except the electrode that provides the touch scan signal by the touch scan signal line, and the two touch scans located in the same column The two coupled signals generated by the signal line cancel each other;
  • the control unit When the display driving signal is input to the at least one second electrode region for display driving, the control unit inputs a touch scan signal to the at least one first electrode region for touch scanning, and provides the touch scan.
  • One of the touch scan signal lines of the signal generates a coupled signal to the other electrode of the same column except the electrode that provides the touch scan signal by the touch scan signal line, and the two touch scans located in the same column The two coupled signals produced by the signal line cancel each other out.
  • a touch display includes: a first substrate and a second substrate formed on a box, an electrode array disposed in the first substrate; and a touch display driving as described above The device, the touch display driving device is electrically connected to each of the electrodes in the electrode array through a metal wire.
  • the idea of the present invention is to input a display driving signal to the first electrode region for display driving, and input a touch scan signal to the second electrode region for touch scanning, and the second electrode region is located in the same column.
  • the coupling of the two touch scan signals to at least the first electrode region cancels each other, and vice versa.
  • FIG. 1 is a schematic flow chart of a touch display driving method according to an embodiment of the invention.
  • FIG. 2 is a schematic structural diagram of a touch display driving device according to an embodiment of the invention.
  • FIG. 3 is a schematic structural diagram of a substrate of a touch display device according to an embodiment of the invention.
  • Figure 4 is a waveform diagram of driving signals of the substrate shown in Figure 3;
  • FIG. 5 is a schematic diagram showing the coupling of the signals shown in Figure 4.
  • FIG. 6 is a schematic structural diagram of a substrate of another touch display according to an embodiment of the invention.
  • Figure 7 is a waveform diagram of driving signals of the substrate shown in Figure 6;
  • Figure 8 is a schematic diagram showing the coupling of the signals shown in Figure 7;
  • FIG. 9 is a schematic cross-sectional view of a substrate of a touch display device according to an embodiment of the invention.
  • 10a is a schematic structural view of an electrode connection metal wire in a touch display device according to an embodiment of the invention.
  • FIG. 10b is a schematic structural view of another electrode connecting metal wire in a touch display according to an embodiment of the invention.
  • FIG. 1 is a schematic flow chart of a touch display driving method according to an embodiment of the invention.
  • the touch display driving method includes:
  • Step 101 Input a display driving signal and a touch scan signal to the electrode array, the electrode array includes at least one first electrode region and at least one second electrode region, and each of the first electrode region or the second electrode region includes a plurality of columns of electrodes. And each of the plurality of columns of electrodes is provided with a display driving signal or a touch scanning signal by a corresponding signal line in the column direction.
  • Step 102 When a display driving signal is input to at least one first electrode region for display driving, inputting a touch scan signal to at least one second electrode region for touch scanning, and providing a touch scan signal in the touch scan signal line A pair of electrodes other than the electrodes that provide the touch scan signal from the touch scan signal line generate a coupled signal, and the two coupled signals generated by the two touch scan signal lines in the same column cancel each other.
  • the touch scan signals provided by the two touch scan signal lines may be signals of different amplitudes and phases (preferably, opposite). In the case of different phases, the coupling effect of the two touch scan signals is at least partially offset. In the opposite phase, the coupling effect of the two touch scan signals is completely offset.
  • Step 103 When a display driving signal is input to the at least one second electrode region for display driving, the touch scanning signal is input to the at least one first electrode region for touch scanning, and the touch scanning signal line of the touch scanning signal is provided.
  • a pair of electrodes other than the electrodes that provide the touch scan signal from the touch scan signal line generate a coupled signal, and the two coupled signals generated by the two touch scan signal lines in the same column cancel each other.
  • the touch scan signals input by the two touch scan signal lines may be signals of the same amplitude and phase (preferably, opposite).
  • the division of the electrode region is not limited to the above-described situation, but may be selected according to actual conditions, such as an electrode according to a report rate of a TP (Touch Panel). Area segmentation.
  • the electrode array refers to a plurality of electrodes arranged in a matrix form, and the electrode array includes a plurality of rows and columns of electrodes. More specifically, such an electrode may be a common electrode in an in-cell touch display panel.
  • the partition driving is performed on the in-cell touch display structure, thereby realizing the effect of simultaneous driving of display and touch, and solving various problems caused by insufficient time due to time-division driving when high resolution is solved.
  • Display and touch issues When a touch scan signal is input to an electrode through a touch scan signal line, the touch scan signal line pair is located in the same column The other electrodes except the electrode generate a coupling signal, and the two coupled signals generated by the two touch scanning signal lines in the same column can cancel each other, thereby effectively avoiding noise generated by the signal coupling of the touch electrode. The effect of the control effect.
  • the electrode region may include at least one sub-region, each sub-region including two adjacent rows of electrodes.
  • the step of inputting the touch scan signal to the electrode region for touch scan may include: inputting different amplitude (preferably, opposite) touches to the two electrodes of each column in each sub-area of the electrode region. Scan the signal.
  • the amplitude of the touch scan signal refers to the maximum amplitude of the signal waveform
  • the phase of the touch scan signal may refer to a state in which the touch scan signal is at a high level or a zero level at a certain time.
  • the touch scan signal may adopt a square wave signal, and the amplitude thereof may be 5v.
  • +5v and 0v touch scan signals can be input at the same time.
  • the level values +5v and 0v are also merely illustrative, and other level values may be selected during the actual application.
  • the coupling effect of the two rows of electrodes on the input display driving signal electrode regions is opposite, so that they can cancel each other. This effectively avoids the interference of the noise generated by the signal coupling of the touch area electrode on the display signal, and avoids the influence on the display effect.
  • the electrode region may also include at least one sub-region, each sub-region including adjacent three rows of electrodes.
  • the step of inputting the touch scan signal to the electrode area for touch scan may include: inputting a touch scan signal to one of the three electrodes of each column in each sub-area in the electrode area, and inputting the other two electrodes respectively A touch scan signal having a different amplitude and phase (preferably, opposite).
  • the coupling effect of the touch scan signals on the two rows of electrodes on the input signals of the remaining row of electrodes is opposite, canceling each other, thereby effectively avoiding signal coupling of other electrodes in the touch area.
  • the impact of noise on touch performance improves touch performance.
  • the coupling effects of the two touch scan signals on the electrode regions of the input display drive signals also cancel each other out.
  • FIG. 2 is a schematic structural diagram of a touch display driving device according to an embodiment of the invention.
  • the touch display driving device 20 includes a control unit 201 for inputting a display driving signal and a touch scanning signal to the electrode array, wherein the electrode array includes at least one first electrode region and at least one second electrode region, each First electrode area or second
  • the electrode regions each include a plurality of columns of electrodes, and each of the plurality of columns of electrodes is provided with a display driving signal or a touch scanning signal by a signal line along the column direction.
  • the control unit 201 When the display driving signal is input to the at least one first electrode region for display driving, the control unit 201 inputs a touch scan signal to the at least one second electrode region for touch scanning, and provides a touch scan signal in the touch scan signal line.
  • a pair of electrodes other than the electrodes that provide the touch scan signal from the touch scan signal line generate a coupled signal, and the two coupled signals generated by the two touch scan signal lines in the same column cancel each other.
  • the touch scan signals input by the two touch scan signal lines may be signals of the same amplitude and phase (preferably, opposite).
  • the control unit 201 When the display driving signal is input to the at least one second electrode region for display driving, the control unit 201 inputs a touch scan signal to the at least one first electrode region for touch scanning, and provides a touch scan signal in the touch scan signal line.
  • a pair of electrodes other than the electrodes that provide the touch scan signal from the touch scan signal line generate a coupled signal, and the two coupled signals generated by the two touch scan signal lines in the same column cancel each other.
  • the touch scan signals input by the two touch scan signal lines may be signals of the same amplitude and phase (preferably, opposite).
  • the effect of simultaneous display and touch driving is realized, and various display and touch problems caused by insufficient time due to time-division driving are solved when high resolution is solved.
  • the touch scan signal line pair When a touch scan signal is input to an electrode through a touch scan signal line, the touch scan signal line pair generates a coupled signal in other electrodes other than the electrode in the same column, and two touches in the same column
  • the two coupled signals generated by the scanning signal line can cancel each other, thereby effectively avoiding the influence of the noise generated by the signal coupling of the touch electrodes on the display touch effect.
  • the electrode region may include at least one sub-region, each sub-region including two adjacent rows of electrodes.
  • the control unit 201 can be configured to input touch scan signals of the same amplitude and phase (preferably opposite) to the two electrodes of each column in each sub-area of the electrode region.
  • FIG. 3 is a schematic structural diagram of a substrate of a touch display according to an embodiment of the invention.
  • the two sub-areas Block1 and Block2 belong to the first electrode area and the A two-electrode region, each sub-region comprising two adjacent rows of electrodes TP1 and TP2.
  • Block1 performs display driving
  • Block2 performs touch driving.
  • Block1 performs touch driving. This can ensure that the touch and the display drive are performed simultaneously, and the frequency of, for example, displaying 60 Hz and touching 120 Hz can be completed.
  • Block1 When the display is driven by Block1, the electrode in Block1 is connected to the common electrode signal (DC signal), and Block2 is touch-driven.
  • DC signal common electrode signal
  • Block2-TP1 and Block2-TP2 respectively input signals of the same amplitude and phase, and the signal waveform can be as shown in FIG.
  • the metal traces of Block2-TP1 and Block2-TP2 have opposite coupling effects on the common electrode signals in Block1, and cancel each other, as shown in FIG. 5, thereby effectively avoiding the influence of the noise generated by the signal coupling of the touch electrodes on the display effect.
  • the electrode region may also include at least one sub-region, each sub-region including adjacent three rows of electrodes.
  • the control unit 201 can be used to input a touch scan signal to one of the three electrodes of each column in each sub-area of the electrode region, the same amplitude and phase are respectively input to the other two electrodes. Different (preferably, opposite) touch scan signals.
  • the coupling effect of the touch scan signals on the two rows of electrodes on the input signal lines of the remaining row of electrodes is opposite and cancels each other, thereby effectively avoiding signal coupling of other electrodes in the touch area.
  • FIG. 6 is a schematic structural diagram of a substrate of another touch display according to an embodiment of the invention.
  • the two sub-regions Block1 and Block2 belong to the first electrode region and the second electrode region, respectively, each sub-region including adjacent three rows of electrodes TP1, TP2 and TP3.
  • Block1 performs display driving
  • Block2 performs touch driving.
  • Block1 performs touch driving. This can ensure that the touch and the display drive are performed simultaneously, and the frequency of, for example, displaying 60 Hz and touching 120 Hz can be completed.
  • Block2-TP1 When the display is driven by Block1, the electrode in Block1 is connected to the common electrode signal (DC signal), and Block2 is touch-driven.
  • Block2-TP1 scans the touch scan signal
  • other signals such as Block2-TP2 and Block2-TP3 input touch scan signals of the same amplitude and phase (preferably, opposite), three sets of signals.
  • the input signals on Block2-TP2 and Block2-TP3 are better displayed. Relationship, deliberately will be Block2-TP1
  • the input touch scan signal is represented in a sawtooth shape, however, the waveform signal is not a limitation on the type of its input signal.
  • the touch scanning signals on the Block2-TP2 and the Block2-TP3 have opposite coupling effects on the touch scanning signals of the Block2-TP1, and cancel each other, as shown in FIG. 8, thereby avoiding noise contact generated by signal coupling of other electrodes. Control the impact of performance and therefore improve touch performance.
  • the coupling effects of the two touch scan signals on the electrode region Block1 inputting the display drive signal are also opposite and cancel each other.
  • a touch display includes a first substrate and a second substrate formed by a pair of boxes, wherein an electrode array is disposed in the first substrate.
  • the touch display can be implemented as any product or component having a display function, such as a liquid crystal display, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the touch display device further includes the touch display driving device as described above.
  • the touch display driving device is electrically connected to each of the electrodes in the electrode array through a metal wire for inputting a display driving signal to the first electrode region of the electrode array for display driving, and inputting a touch scan to the second electrode region.
  • the signal is touch-scanned, and in the second electrode region, the coupling of the two touch scan signals in the same column to at least the first electrode region cancel each other, and vice versa.
  • FIG. 9 is a schematic cross-sectional view of a substrate of a touch display according to an embodiment of the invention.
  • a plurality of electrodes 911 are disposed on the first substrate 91.
  • the second substrate 92 is provided with data lines 921 arranged along the electrode column direction and pixel electrodes 922 arranged at intervals, metal wires 912 and data lines.
  • the projection position of the 921 on the plane of the substrate corresponds to effectively reduce the size of the wiring area and ensure the aperture ratio of the display panel.
  • each of the electrodes is connected to the control unit via one or more metal wires.
  • each electrode can be connected to the control unit via a metal wire, which minimizes the size of the cable area.
  • each of the electrodes can be connected to the control unit through three metal wires to effectively ensure the stability of signal transmission.
  • the number of metal wires can be selected according to actual conditions.
  • each small square as shown in FIG. 3 or 6 is described as an electrode.
  • these electrodes should be interpreted as “touch electrodes", each of which is in-line
  • the application of the touch display panel may correspond to a single common electrode or a combination of a plurality of common electrodes.
  • the partition driving of the in-cell touch display structure is realized, and the effect of simultaneous driving of display and touch is realized, and when the high resolution is solved, the time caused by the time-division driving is insufficient.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触控显示驱动方法、驱动装置及触控显示器，属于显示技术领域。触控显示驱动方法包括：向电极阵列输入显示驱动信号和触控扫描信号，电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个电极区域均包括多列电极，且多列电极中的每一个电极都由沿列方向的信号线提供显示驱动信号或触控扫描信号（101）；当向第一电极区域输入显示驱动信号进行显示驱动时，向第二电极区域输入触控扫描信号进行触控扫描，输入触控扫描信号的触控扫描信号线对同一列的电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号相互抵消（102）。该方法解决了由于分时驱动导致的时间不足引起的各种显示和触控问题。

Description

一种触控显示驱动方法、驱动装置及触控显示器 技术领域
本发明涉及显示技术领域，特别涉及一种触控显示驱动方法、驱动装置及触控显示器。
背景技术
随着触控技术的不断发展，各种具有触控功能的显示产品也随之应运而生。在各种触控技术中，内嵌式(in cell)触控技术因其所具有的低成本以及厚度薄等优点而逐渐得到越来越多人们的关注。
在内嵌式触控显示面板中，位于显示出光面一侧的基板内的公共电极不仅用于驱动液晶偏转，还能够作为触控电极以实现触控功能。为了避免显示信号与触控扫描信号同时输入电极而产生干扰，影响正常的显示或触控功能，现有的内嵌式触控显示采用分时驱动，即在一帧的时间内一段时间进行显示驱动，另外一段时间进行触控驱动，从而避免了显示和触控扫描信号之间的影响，进而影响显示效果或者触控效果。但其不足之处在于，在高分辨率显示触控产品中，采用分时驱动会导致驱动时间不足或是扫描间隔过长，这将引起包括显示刷新率下降或是触控精度降低等各种问题。
发明内容
为了解决由于分时驱动导致的时间不足引起的各种显示和触控问题，本发明提供一种触控显示驱动方法、驱动装置及触控显示器。
根据本发明的一方面，提供了一种触控显示驱动方法，包括：
向电极阵列输入显示驱动信号和触控扫描信号，所述电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个所述第一电极区域或所述第二电极区域均包括多列电极，且所述多列电极中的每一个电极都由沿列方向的一条相应的信号线提供所述显示驱动信号或所述触控扫描信号；
其中，当向所述至少一个第一电极区域输入显示驱动信号进行显示驱动时，向所述至少一个第二电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的 除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消；并且
其中，当向所述至少一个第二电极区域输入显示驱动信号进行显示驱动时，向所述至少一个第一电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消。
根据本发明的另一方面，提供了一种触控显示驱动装置，包括控制单元，所述控制单元被配置成：
向电极阵列输入显示驱动信号和触控扫描信号，所述电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个所述第一电极区域或所述第二电极区域均包括多列电极，且所述多列电极中的每一个电极都由沿列方向的一条相应的信号线提供所述显示驱动信号或所述触控扫描信号；
其中，当向所述至少一个第一电极区域输入显示驱动信号进行显示驱动时，所述控制单元向所述至少一个第二电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消；并且
其中，当向所述至少一个第二电极区域输入显示驱动信号进行显示驱动时，所述控制单元向所述至少一个第一电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消。
根据本发明的又一方面，提供了一种触控显示器，包括：对盒成型的第一基板和第二基板，所述第一基板内设置有电极阵列；以及如上所述的触控显示驱动装置，所述触控显示驱动装置分别与电极阵列中的每一个电极通过金属导线电连接。
本发明的构思在于：在向电极阵列的第一电极区域输入显示驱动信号进行显示驱动的同时，向第二电极区域输入触控扫描信号进行触控扫描，且第二电极区域内位于同一列的两个触控扫描信号对至少第一电极区域的耦合相互抵消，反之亦然。这样一来，通过对内嵌式触控显示结构进行分区驱动，实现了显示和触控同时驱动的效果，解决了高分辨率时，由于分时驱动导致的时间不足引起的各种显示和触控问题，且有效避免了触控电极的信号耦合产生的噪声对显示和触控效果的影响。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本发明实施例的一种触控显示驱动方法的流程示意图；
图2是根据本发明实施例的一种触控显示驱动装置的结构示意图；
图3是根据本发明实施例的一种触控显示器的基板结构示意图；
图4是图3所示基板的驱动信号波形图；
图5是图4所示信号的耦合情况示意图；
图6是根据本发明实施例的另一触控显示器的基板结构示意图；
图7是图6所示基板的驱动信号波形图；
图8是图7所示信号的耦合情况示意图；
图9是根据本发明实施例的一种触控显示器的基板截面示意图；
图10a是根据本发明实施例的触控显示器中一种电极连接金属导线结构示意图；以及
图10b是根据本发明实施例的触控显示器中另一电极连接金属导线结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
图1是根据本发明实施例的一种触控显示驱动方法的流程示意图。 所述触控显示驱动方法包括：
步骤101、向电极阵列输入显示驱动信号和触控扫描信号，电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个第一电极区域或第二电极区域均包括多列电极，且多列电极中的每一个电极都由沿列方向的一条相应的信号线提供显示驱动信号或触控扫描信号。
步骤102、当向至少一个第一电极区域输入显示驱动信号进行显示驱动时，向至少一个第二电极区域输入触控扫描信号进行触控扫描，提供触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号相互抵消。更具体地，这两条触控扫描信号线提供的触控扫描信号可以是同幅值、相位不同(优选地，相反)的信号。在相位不同的情况下，两个触控扫描信号的耦合效果至少部分地抵消。在相位相反的情况下，两个触控扫描信号的耦合效果完全抵消。
步骤103、当向至少一个第二电极区域输入显示驱动信号进行显示驱动时，向至少一个第一电极区域输入触控扫描信号进行触控扫描，提供触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号相互抵消。如前所述，这两条触控扫描信号线输入的触控扫描信号可以是同幅值、相位不同(优选地，相反)的信号。
需要说明的是，在本发明实施例中，电极区域的划分不限于上面描述的情形，而是可以根据实际情况进行选择，如可根据TP(Touch Panel，触控面板)报点率情况进行电极区域分割。此外，在本发明实施例中，电极阵列是指呈矩阵形式排列的多个电极，该电极阵列包括多行多列电极。更具体地，这样的电极可以是内嵌式触控显示面板中的公共电极。
在本发明实施例中，通过对内嵌式触控显示结构进行分区驱动，实现了显示和触控同时驱动的效果，解决了高分辨率时，由于分时驱动导致的时间不足引起的各种显示和触控问题。在通过触控扫描信号线向某一电极输入触控扫描信号时，该触控扫描信号线对位于同一列 的除该电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号能够相互抵消，有效避免了触控电极的信号耦合产生的噪声对显示触控效果的影响。
进一步地，电极区域可以包括至少一个子区域，每一子区域包括相邻的两行电极。向电极区域输入触控扫描信号进行触控扫描的步骤可以包括：向电极区域的每一个子区域内的每一列的两个电极分别输入同幅值、相位不同(优选地，相反)的触控扫描信号。
需要说明的是，触控扫描信号的幅值是指该信号波形的最大振幅，触控扫描信号的相位可以是指在某一时刻该触控扫描信号为高电平或零电平的状态。例如，在本发明实施例中，触控扫描信号可以采用方波信号，其幅值可以为5v。对于电极区域中每一个子区域内的两行电极，可以在同一时刻分别输入+5v和0v的触控扫描信号。应当理解，电平值+5v和0v也仅仅是举例说明，在实际应用的过程中，还可以选择其他电平值。
这样一来，在每一个子区域内，两行电极对输入显示驱动信号电极区域的耦合效果相反，从而能够相互抵消。这有效避免了触控区域电极的信号耦合产生的噪声对显示信号的干扰，避免了对显示效果造成影响。
可替换地，电极区域也可以包括至少一个子区域，每一子区域包括相邻的三行电极。向电极区域输入触控扫描信号进行触控扫描的步骤可以包括：向电极区域中，每一个子区域内的每一列的三个电极其中之一输入触控扫描信号时，其余两个电极分别输入同幅值、相位不同(优选地，相反)的触控扫描信号。
这样一来，在每一个子区域内，两行电极上的触控扫描信号对其余一行电极的输入信号的耦合效果相反，相互抵消，从而能够有效避免在触控区域内其他电极的信号耦合产生的噪声对触控性能的影响，提高触控性能。此外，这两个触控扫描信号对输入显示驱动信号的电极区域的耦合效果也相互抵消。
图2是根据本发明实施例的一种触控显示驱动装置的结构示意图。该触控显示驱动装置20包括控制单元201，控制单元201用于向电极阵列输入显示驱动信号和触控扫描信号，其中，电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个第一电极区域或第二 电极区域均包括多列电极，且多列电极中的每一个电极都由沿列方向的信号线提供显示驱动信号或触控扫描信号。
当向至少一个第一电极区域输入显示驱动信号进行显示驱动时，控制单元201向至少一个第二电极区域输入触控扫描信号进行触控扫描，提供触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号相互抵消。如前所述，这两条触控扫描信号线输入的触控扫描信号可以是同幅值、相位不同(优选地，相反)的信号。
当向至少一个第二电极区域输入显示驱动信号进行显示驱动时，控制单元201向至少一个第一电极区域输入触控扫描信号进行触控扫描，提供触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号相互抵消。如前所述，这两条触控扫描信号线输入的触控扫描信号可以是同幅值、相位不同(优选地，相反)的信号。
通过对内嵌式触控显示结构进行分区驱动，实现了显示和触控同时驱动的效果，解决了高分辨率时，由于分时驱动导致的时间不足引起的各种显示和触控问题。在通过触控扫描信号线向某一电极输入触控扫描信号时，该触控扫描信号线对位于同一列的除该电极之外的其它电极产生耦合信号，且位于同一列的两条触控扫描信号线产生的两个耦合信号能够相互抵消，有效避免了触控电极的信号耦合产生的噪声对显示触控效果的影响。
进一步地，电极区域可以包括至少一个子区域，每一子区域包括相邻的两行电极。在这种情况下，控制单元201可以用于向电极区域的每一个子区域内的每一列的两个电极分别输入同幅值、相位不同(优选地，相反)的触控扫描信号。
这样一来，在每一个子区域内，两行电极的耦合效果相反，从而能够相互抵消。这有效避免了触控区域电极的信号耦合产生的噪声对显示信号的干扰，避免了对显示效果造成影响。
图3是根据本发明实施例的一种触控显示器的基板结构示意图。如所图示的，两个子区域Block1和Block2分别属于第一电极区域和第 二电极区域，每一子区域包括相邻的两行电极TP1和TP2。在Block1进行显示驱动时，Block2进行触控驱动，在Block2进行显示驱动时，Block1进行触控驱动。这样可以保证触控与显示驱动的同时进行，并且能够完成例如显示60Hz和触控120Hz的频率。
在Block1进行显示驱动时，Block1中的电极接公共电极信号(直流信号)，同时Block2进行触控驱动。同一时间下，Block2内的两行电极Block2-TP1、Block2-TP2上分别输入同幅值、相位不同的信号，信号波形可以如图4所示。这样Block2-TP1和Block2-TP2的金属走线对Block1中公共电极信号的耦合效果相反，相互抵消，如图5所示，从而有效避免了触控电极的信号耦合产生的噪声对显示效果的影响。
可替换地，电极区域也可以包括至少一个子区域，每一子区域包括相邻的三行电极。在这种情况下，控制单元201可以用于向电极区域的每一个子区域内的每一列的三个电极其中之一输入触控扫描信号时，向其余两个电极分别输入同幅值、相位不同(优选地，相反)的触控扫描信号。
这样一来，在每一个子区域内，两行电极上的触控扫描信号对其余一行电极的输入信号线的耦合效果相反，相互抵消，从而能够有效避免在触控区域内其他电极的信号耦合产生的噪声对触控性能的影响，并且因此提高触控性能。
图6是根据本发明实施例的另一触控显示器的基板结构示意图。如所图示的，两个子区域Block1和Block2分别属于第一电极区域和第二电极区域，每一子区域包括相邻的三行电极TP1、TP2和TP3。在Block1进行显示驱动时，Block2进行触控驱动，在Block2进行显示驱动时，Block1进行触控驱动。这样可以保证触控与显示驱动的同时进行，并且能够完成例如显示60Hz和触控120Hz的频率。
在Block1进行显示驱动时，Block1中的电极接公共电极信号(直流信号)，同时Block2进行触控驱动。同一时间下，当Block2-TP1进行触控扫描信号扫描时，其他的信号如Block2-TP2和Block2-TP3上输入同幅值、相位不同(优选地，相反)的触控扫描信号，三组信号可以如图7所示。需要说明的是，在如图7所示的信号波形图中，为了将Block2-TP1输入的触控扫描信号与其余两组信号相区别，更好地展示Block2-TP2和Block2-TP3上输入信号的关系，特意将Block2-TP1 输入的触控扫描信号以锯齿波形状表示，然而，该波形信号并非是对其输入信号类型的限制。这样Block2-TP2和Block2-TP3上的触控扫描信号对Block2-TP1的触控扫描信号的耦合效果相反，相互抵消，如图8所示，从而能够避免其他电极的信号耦合产生的噪声对触控性能的影响，并且因此提高触控性能。此外，这两个触控扫描信号对输入显示驱动信号的电极区域Block1的耦合效果也相反，相互抵消。
根据本发明的另一方面，提供了一种触控显示器，包括对盒成型的第一基板和第二基板，其中，第一基板内设置有电极阵列。所述触控显示器可以被实现为：液晶显示器、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
该触控显示器还包括如上任一所述的触控显示驱动装置。触控显示驱动装置分别与电极阵列中的每一个电极通过金属导线电连接，用于在向电极阵列的第一电极区域输入显示驱动信号进行显示驱动的同时，向第二电极区域输入触控扫描信号进行触控扫描，且在第二电极区域内，位于同一列的两个触控扫描信号对至少第一电极区域的耦合相互抵消，反之亦然。触控显示驱动装置的具体结构及功能已在前述实施例中做了详细的描述，此处不做赘述。
图9是根据本发明实施例的一种触控显示器的基板截面示意图。如图9所示，第一基板91上间隔设置有多个电极911，第二基板92上设置有沿电极列方向排布的数据线921以及间隔排列的像素电极922，金属导线912与数据线921在基板平面上的投影位置对应，以便有效减小排线区域的尺寸，确保显示面板的开口率。
此外，为了实现控制单元对电极的精确控制，在如图3或图6所示的电极结构中，每一个电极均通过一条或多条金属导线与控制单元相连接。例如，如图10a所示，每一个电极可以通过一条金属导线连接控制单元，这样可以最大程度的减少排线区域的尺寸。可替换地，如图10b所示，每一个电极可以通过三条金属导线连接控制单元，以便有效保证信号传输的稳定性。当然以上也仅仅是举例说明而非限制，在实际应用的过程中，可以根据实际情况选择金属导线的数量。
在前面的描述中，如图3或6所示的各个小方块被描述为电极。如已知的，这些电极应当被解释为“触摸电极”，其每一个在内嵌式 触控显示面板的应用中可以对应于单个公共电极或者多个公共电极的组合。
采用这样一种触控驱动方式，通过对内嵌式触控显示结构进行分区驱动，实现了显示和触控同时驱动的效果，解决了高分辨率时，由于分时驱动导致的时间不足引起的各种显示和触控问题，且有效避免了触控电极的信号耦合产生的噪声对显示触控效果的影响。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。另外，虽然各个操作在附图中被描绘为按照特定的顺序，但是这不应理解为要求这些操作必须以所示的特定顺序或者按顺行次序执行，也不应理解为要求必须执行所有示出的操作以获得期望的结果。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种触控显示驱动方法，包括：
    向电极阵列输入显示驱动信号和触控扫描信号，所述电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个所述第一电极区域或所述第二电极区域均包括多列电极，且所述多列电极中的每一个电极都由沿列方向的一条相应的信号线提供所述显示驱动信号或所述触控扫描信号；
    其中，当向所述至少一个第一电极区域输入显示驱动信号进行显示驱动时，向所述至少一个第二电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消；并且
    其中，当向所述至少一个第二电极区域输入显示驱动信号进行显示驱动时，向所述至少一个第一电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消。
  2. 根据权利要求1所述的触控显示驱动方法，其中，所述电极区域包括至少一个子区域，每一子区域包括相邻的两行电极，并且其中，向电极区域输入触控扫描信号进行触控扫描包括：
    向电极区域的每一个子区域内的每一列的两个电极分别输入同幅值、相位不同的触控扫描信号。
  3. 根据权利要求2所述的触控显示驱动方法，其中，所述相位不同的触控扫描信号具有相反的相位。
  4. 根据权利要求1所述的触控显示驱动方法，其中，所述电极区域包括至少一个子区域，每一子区域包括相邻的三行电极，并且其中，向电极区域输入触控扫描信号进行触控扫描包括：
    向电极区域的每一个子区域内的每一列的三个电极其中之一输入触控扫描信号时，其余两个电极分别输入同幅值、相位不同的触控扫 描信号。
  5. 根据权利要求4所述的触控显示驱动方法，其中，所述相位不同的触控扫描信号具有相反的相位。
  6. 根据权利要求1-5中任一项所述的触控显示驱动方法，其中，所述电极阵列中的每一个电极对应于内嵌式触控显示屏中的单个公共电极或者多个公共电极的组合。
  7. 一种触控显示驱动装置，包括控制单元，所述控制单元被配置成：
    向电极阵列输入显示驱动信号和触控扫描信号，所述电极阵列包括至少一个第一电极区域和至少一个第二电极区域，每个所述第一电极区域或所述第二电极区域均包括多列电极，且所述多列电极中的每一个电极都由沿列方向的一条相应的信号线提供所述显示驱动信号或所述触控扫描信号；
    其中，当向所述至少一个第一电极区域输入显示驱动信号进行显示驱动时，所述控制单元向所述至少一个第二电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消；并且
    其中，当向所述至少一个第二电极区域输入显示驱动信号进行显示驱动时，所述控制单元向所述至少一个第一电极区域输入触控扫描信号进行触控扫描，提供所述触控扫描信号的触控扫描信号线中的一条对同一列的除由该触控扫描信号线提供触控扫描信号的电极之外的其它电极产生耦合信号，且位于同一列的两条所述触控扫描信号线产生的两个耦合信号相互抵消。
  8. 根据权利要求7所述的触控显示驱动装置，其中，所述电极区域包括至少一个子区域，每一子区域包括相邻的两行电极，并且其中，所述控制单元还被配置成向电极区域的每一个子区域内的每一列的两个电极分别输入同幅值、相位不同的触控扫描信号。
  9. 根据权利要求8所述的触控显示驱动装置，其中，所述相位不同的触控扫描信号具有相反的相位。
  10. 根据权利要求7所述的触控显示驱动装置，其中，所述电极 区域包括至少一个子区域，每一子区域包括相邻的三行电极，并且其中，所述控制单元还被配置成向电极区域的每一个子区域内的每一列的三个电极其中之一输入触控扫描信号时，向其余两个电极分别输入同幅值、相位不同的触控扫描信号。
  11. 根据权利要求10所述的触控显示驱动装置，其中，所述相位不同的触控扫描信号具有相反的相位。
  12. 根据权利要求7-11中任一项所述的触控显示驱动装置，其中，所述电极阵列中的每一个电极对应于内嵌式触控显示屏中的单个公共电极或者多个公共电极的组合。
  13. 一种触控显示器，包括：
    对盒成型的第一基板和第二基板，所述第一基板内设置有电极阵列；以及
    如权利要求7-12任一所述的触控显示驱动装置，所述触控显示驱动装置分别与电极阵列中的每一个电极通过金属导线电连接。
  14. 根据权利要求13所述的触控显示器，其中，所述第二基板设置有沿电极列方向排布的数据线，并且所述金属导线与所述数据线在基板平面上的投影位置对应。
  15. 根据权利要求13所述的触控显示器，其中，每一个所述电极均通过一条或多条金属导线与所述控制单元相连接。
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