WO2017156841A1 - 用于触控显示面板的驱动方法 - Google Patents

用于触控显示面板的驱动方法 Download PDF

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Publication number
WO2017156841A1
WO2017156841A1 PCT/CN2016/081222 CN2016081222W WO2017156841A1 WO 2017156841 A1 WO2017156841 A1 WO 2017156841A1 CN 2016081222 W CN2016081222 W CN 2016081222W WO 2017156841 A1 WO2017156841 A1 WO 2017156841A1
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Prior art keywords
touch
display
panel
display panel
driving method
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English (en)
French (fr)
Inventor
黄耀立
贺兴龙
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/111,787 priority Critical patent/US20180107326A1/en
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 generally relates to the field of touch display technology, and more particularly to a driving method for a touch display panel.
  • the conventional liquid crystal display only provides a display function, with a 60 Hz refresh rate as an example, a corresponding display scan period (for example, one frame) time is 16.67 ms, and a 120 Hz refresh rate is taken as an example, and the corresponding one frame time is 8.33. Ms.
  • the shorter the time of one frame the higher the performance requirements of the device in the LCD panel, and the higher the cost. Since the conventional LCD has only the display phase, the time of one frame can be used for display.
  • FIG. 1 is a schematic diagram showing a touch array and a display array in a conventional in-cell touch display.
  • the touch array and the display array are separately placed, but the touch array and the display array can be vertically overlapped.
  • the touch array can be divided into four rows of A, B, C, and D.
  • the display array can be divided into 12 rows of A1 to A3, B1 to B3, C1 to C3, and D1 to D3.
  • the A rows in the touch array and the A1 to A3 rows of the display array are overlapped, and the B rows in the touch array and the B1 to B3 rows in the display array are overlapped, and so on.
  • the square electrode is used for collecting a touch signal
  • the touch integrated circuit touch IC
  • the touch IC processes the touch signal collected by the square electrode, converts the touch signal into a touch position signal, and sends the touch signal to the central processing unit (CPU).
  • the gate driving circuit module (Gate circuit module) is responsible for sequentially turning on the driving display driving signal line (Gate signal line). When the Gate signal line is turned on, it means that the corresponding line needs to be displayed (for example, it is sequentially opened from A1 to D3, and only one Gate signal line can be turned on at the same time).
  • the display data providing module (Data circuit module) is for transmitting the display signal through the data signal line (Data signal line), and all the data signal lines are simultaneously transmitted.
  • the driving method of the existing in-cell touch display shown in FIG. 1 is as follows: First, the Gate circuit module Open the Gate signal line corresponding to A1 (in this case, except for the Gate signal line corresponding to A1, the other Gate signal lines are off), and the Data circuit module sends the A1 line in the time when the Gate signal line corresponding to A1 is turned on. Display signal. Next, the Gate circuit module immediately opens the Gate signal line corresponding to A2 (in this case, except for the Gate signal line corresponding to A2, the other Gate signal lines are all off), and the Data circuit module opens on the Gate signal line corresponding to A2. The display signal of the A2 line is sent within the time.
  • the Gate circuit module immediately opens the Gate signal line corresponding to A3 (in this case, except for the Gate signal line corresponding to A3, the other Gate signal lines are all off), and the Data circuit module opens on the Gate signal line corresponding to A3.
  • the display signal of the A3 line is sent within the time.
  • the touch IC simultaneously performs touch signal detection on all the square electrodes. At this time, all Gate signal lines are in the off state, and the Data circuit module stops transmitting the display signal. It is in the display stop state, which is the touch phase.
  • the driving mode of the Incell LCD is that the touch and display are time-divisionally performed, that is, the touch signal cannot be detected during the display phase, and the display signal cannot be driven during the touch phase, that is, When the touch signal is detected, the display must be stopped. When the display is driven, the touch detection must be stopped.
  • the display phase + touch phase time is 16.67ms in one frame time, that is, the time for the display phase will be less than 16.67ms, so at the same process level, Incell The LCD display is not as good as the traditional LCD.
  • Incell LCD If the Incell LCD is required to achieve the same display effect as the LCD, it is necessary to use a device with better performance than the conventional LCD, and the corresponding cost will increase.
  • the current touch detection time of Incell LCD is also extremely short (about 2ms, which is due to most of the time allocated to the display phase), which makes the touch effect difficult to guarantee.
  • An exemplary embodiment of the present invention provides a driving method for a touch display panel to solve the technical problem of the existing Incell LCD display effect and poor touch performance without increasing the cost of hardware modification.
  • a driving side for a touch display panel includes a display panel for displaying an image and a touch panel for implementing touch detection.
  • the driving method includes: controlling the display panel to display an image while controlling the touch The control panel performs touch detection.
  • the one display scan period may be used to display an image, and the one display scan period may also be used for touch detection.
  • the entire touch panel can be controlled for touch detection.
  • the display panel may include a pixel unit array composed of a plurality of pixel units
  • the touch panel may include a touch array composed of a plurality of square electrodes, wherein the entire display panel is displayed while controlling the image.
  • the step of controlling the touch detection of the entire touch panel may include sequentially turning on display driving signal lines corresponding to each row in the pixel unit array, and transmitting a display signal to each row during the time when the display driving signal line is turned on. Touch detection is performed on each line in the touch array.
  • one row in the touch array may correspond to multiple rows in the pixel cell array.
  • the touch display panel may be divided into a plurality of sub-areas, wherein, when the display panel corresponding to one of the plurality of sub-areas is controlled to display an image, the plurality of sub-areas may be controlled
  • the touch panel corresponding to the sub-areas other than the one sub-area performs touch detection.
  • the display panel may include a pixel unit array composed of a plurality of pixel units
  • the touch panel may include a touch array composed of a plurality of square electrodes, wherein the one sub-region may correspond to the touch A row in the array, the one sub-region corresponding to a plurality of rows in the pixel cell array.
  • the above-mentioned driving method for the touch display panel is used to detect the touch while displaying the image to ensure that the time for display and the time for touch detection are not shortened in one display period.
  • the display effect and the touch effect of the in-cell touch display panel are ensured.
  • FIG. 1 is a schematic diagram showing a touch array and a display array in a conventional in-cell touch display
  • FIG. 2 shows a driving timing diagram of a conventional in-cell touch display screen
  • FIG. 3 is a timing chart showing driving of a touch display panel according to an exemplary embodiment of the present invention.
  • a driving method for a touch display panel may be an in-cell touch display (Incell LCD).
  • the touch display panel includes a display panel for displaying an image and a touch panel for implementing touch detection.
  • the driving method includes: controlling the touch panel to perform touch detection while controlling the display panel to display an image. That is, the driving method for the touch display panel according to the exemplary embodiment of the present invention is that the touch and the display are simultaneously performed, and the touch signal is also detected during the display phase. For example, for one display scan period, the one display scan period is used to display an image, and the one display scan period is also used for touch detection.
  • FIG. 2 shows a driving timing diagram of a conventional in-cell touch display screen (Incell LCD).
  • the display time and the touch time of the existing Incell LCD are time-divisionally performed, that is, the touch detection cannot be performed when the image is displayed, and the image cannot be displayed when the touch detection is performed.
  • FIG. 3 is a timing chart showing driving of a touch display panel according to an exemplary embodiment of the present invention.
  • the touch display panel of the exemplary embodiment of the present invention performs display and touch simultaneously, and displays time and touch during a complete display scan period (for example, one frame time). time. This saves time and increases panel charging rate and touch characteristics.
  • the entire touch panel is controlled to perform touch detection while controlling the entire display panel to display an image.
  • the display panel may include a pixel unit array composed of a plurality of pixel units
  • the touch panel may include a touch array composed of a plurality of square electrodes, wherein the control is performed while controlling the entire display panel to display an image.
  • the step of performing touch detection on the entire touch panel may include sequentially turning on display driving signal lines corresponding to each row in the pixel unit array, and transmitting a display signal to each row during the time when the display driving signal line is turned on, and simultaneously Each line in the touch array performs touch detection.
  • one row in the touch array may correspond to a pixel cell array. Multi-line.
  • the driving process for the touch display panel of the first exemplary embodiment will be described below by taking the in-cell touch display screen shown in FIG. 1 as an example.
  • the Gate circuit module can sequentially turn on all display driving signal lines (Gate signal lines) corresponding to A1/A2/A3/B1/B2/B3/C1/C2/C3/D1/D2/D3.
  • the Data circuit module transmits A1/A2/A3/B1/B2 within the time when the display drive signal line corresponding to A1/A2/A3/B1/B2/B3/C1/C2/C3/D1/D2/D3 is turned on.
  • the display phase is not stopped for the collection of the touch signal, and more time is available for display, which can improve the display effect, due to the collection of the touch signal. It is also uninterrupted, so it can also improve the touch effect.
  • the touch display panel may be divided into a plurality of sub-areas, where the display panel corresponding to one of the plurality of sub-areas is controlled to display an image while being controllable
  • the touch panel corresponding to the other sub-regions of the plurality of sub-regions performs touch detection.
  • the one sub-region may correspond to one row in the touch array, and the one sub-region may correspond to multiple rows in the pixel unit array.
  • the driving process for the touch display panel of the second exemplary embodiment will be described below by taking the in-cell touch display screen shown in FIG. 1 as an example.
  • the touch array can be divided into four rows A, B, C, and D, one row corresponding to one sub-region, and the corresponding display array can be divided into A1 to A3, B1 to B3, C1 ⁇ C3, D1 ⁇ D3 a total of 12 lines, the A line in the touch array and the A1 ⁇ A3 lines of the display array overlap, the B line in the touch array and the B1 ⁇ B3 lines of the display array overlap, in turn analogy.
  • the Gate circuit module opens the Gate signal line corresponding to A1/A2/A3 (ie, a sub-area)
  • the Data circuit module transmits A1/A2 in the time when the Gate signal line corresponding to A1/A2/A3 is turned on.
  • the display signal of the /A3 line at the same time, the touch IC collects the touch signals of the B, C, and D lines (ie, other sub-areas) in the touch array.
  • the Gate circuit module When the Gate circuit module opens the Gate signal line corresponding to B1/B2/B3 (ie, a sub-area), the Data circuit module transmits the B1/B2/B3 line in the time when the Gate signal line corresponding to B1/B2/B3 is turned on. At the same time, the touch IC collects touch signals of the A, C, and D lines (ie, other sub-areas) in the touch array.
  • the Gate circuit module opens the signal line with C1/C2/C3 (ie, a sub-area)
  • the Data circuit module transmits the display signal of the C1/C2/C3 line within the time when the C1/C2/C3 signal line is turned on.
  • the touch IC collects touch signals of lines A, B, and D (ie, other sub-areas) in the touch array.
  • the Data circuit module transmits the display of the D1/D2/D3 line in the time when the Gate signal line corresponding to D1/D2/D3 is turned on.
  • the touch IC collects touch signals of lines A, B, and C (ie, other sub-areas) in the touch array.
  • the display phase is not stopped for the collection of the touch signal, and more time is available for display, which can improve the display effect, due to the collection of the touch signal. It is also uninterrupted, so it can also improve the touch effect.
  • the detection of the touch signal and the display of the image are performed in a partition, which can effectively avoid the influence of signal interleaving on the quality of the display image.
  • the driving method for the touch display panel is driven by the display and the touch, so that the time for display and the time for the touch detection are not shortened, thereby ensuring the display of the touch display panel. Effects and touch effects.
  • the driving method for the touch display panel can effectively improve the display effect and the touch effect of the touch display panel without adding any hardware devices, thereby effectively reducing the manufacturing cost of the touch display panel and making It is easy to make a high refresh rate Incell LCD.

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Abstract

提供一种用于触控显示面板的驱动方法，所述触控显示面板包括用于显示图像的显示面板和用于实现触控侦测的触控面板，所述驱动方法包括：在控制显示面板显示图像的同时，控制触控面板进行触控侦测。采用上述用于触控显示面板的驱动方法可有效提高显示效果和触控效果。

Description

用于触控显示面板的驱动方法 技术领域
本发明总体说来涉及触控显示技术领域，更具体地讲，涉及一种用于触控显示面板的驱动方法。
背景技术
传统的液晶显示器(LCD)只提供显示功能，以60Hz刷新率为例，对应的一个显示扫描周期(例如，一帧)时间为16.67ms，以120Hz刷新率为例，对应的一帧时间为8.33ms。一帧的时间越短，对LCD面板内的器件性能要求越高，成本也会越高。由于传统LCD只有显示阶段，因此一帧的时间可全部用于显示。
现有的内嵌式触控显示屏(Incell LCD)，在显示屏内部嵌入触摸传感器功能，以使得显示屏变得更加轻薄。图1示出现有的内嵌式触控显示屏中的触控阵列和显示阵列的示意图。在图1中，为便于说明现有的内嵌式触控显示屏的工作原理，将触控阵列和显示阵列分开放置，而实际上触控阵列与显示阵列可上下重叠在一起的。在本示例中，假设触控阵列可分为A、B、C、D四行，显示阵列可分为A1～A3、B1～B3、C1～C3、D1～D3共12行。这里，触控阵列中的A行和显示阵列的A1～A3行是重叠的，触控阵列中的B行和显示阵列的B1～B3行是重叠的，依次类推。
如图1所示，方块电极用于采集触控信号，通过导线连接触控集成电路(触控IC)，以将采集的触控信号送至触控IC。触控IC处理方块电极采集的触控信号，将该触控信号转换成触摸位置信号送至中央处理单元(CPU)。栅极驱动电路模块(Gate电路模块)负责依次单独打开驱动显示驱动信号线(Gate信号线)。Gate信号线打开即代表需要显示对应的行(例如，从A1～D3依次打开，同时只能有一个Gate信号线打开)。显示数据提供模块(Data电路模块)用于通过数据信号线(Data信号线)发送显示信号，所有Data信号线同时发送。
图1所示的现有的内嵌式触控显示屏的驱动方式为：首先，Gate电路模块 打开与A1对应的Gate信号线(此时，除与A1对应的Gate信号线外，其余Gate信号线均为关闭状态)，Data电路模块在与A1对应的Gate信号线打开的时间内发送A1行的显示信号。其次，Gate电路模块紧接着打开与A2对应的Gate信号线(此时除与A2对应的Gate信号线外，其余Gate信号线均为关闭状态)，Data电路模块在与A2对应的Gate信号线打开的时间内发送A2行的显示信号。然后，Gate电路模块紧接着打开与A3对应的Gate信号线(此时除与A3对应的Gate信号线外，其余Gate信号线均为关闭状态)，Data电路模块在与A3对应的Gate信号线打开的时间内发送A3行的显示信号。最后，在与A3对应的Gate信号线关闭后，触控IC对所有方块电极同时进行触控信号检测，此时，所有Gate信号线都处于关闭状态，Data电路模块也停止发送显示信号，此时处于显示停止状态，也就是触控阶段。
在触控阶段结束后，重复上述步骤，进行B1、B2、B3行的显示。待B3行显示完成后，再次进入触控阶段。之后按照同样的方式完成C1、C2、C3和D1、D2、D3信号线显示。
从图1所示的示例可以看出，目前Incell LCD的驱动方式是触控和显示分时进行，即，显示阶段无法进行触控信号的检测，触控阶段无法进行显示信号的驱动，即，在进行检测触控信号时，必须停止显示的驱动，在进行显示驱动时，必须停止触控的检测。以60Hz刷新率为例，在一帧时间内，显示阶段+触控阶段的时间是16.67ms，也就是说，用于显示阶段的时间会少于16.67ms，因此在一样的工艺水平下，Incell LCD显示效果不如传统的LCD。如要求Incell LCD达到和LCD一样的显示效果，则必须采用比传统LCD性能更好的器件，相应成本会增加。此外，目前的Incell LCD用于的触控检测的时间也是极短的(大约为2ms，这是由于大部分时间都分配给显示阶段)，导致触控效果也很难保证。
发明内容
本发明的示例性实施例在于提供一种用于触控显示面板的驱动方法，以在不增加硬件改造成本的情况下解决现有的Incell LCD显示效果和触控效果不佳的技术问题。
根据本发明示例性实施例的一方面，提供一种用于触控显示面板的驱动方 法，所述触控显示面板包括用于显示图像的显示面板和用于实现触控侦测的触控面板，其特征在于，所述驱动方法包括：在控制显示面板显示图像的同时，控制触控面板进行触控侦测。
可选地，针对一个显示扫描周期，所述一个显示扫描周期可均用于显示图像，同时所述一个显示扫描周期也可均用于进行触控侦测。
可选地，在控制整个显示面板显示图像的同时，可控制整个触控面板进行触控侦测。
可选地，所述显示面板可包括由多个像素单元构成的像素单元阵列，所述触控面板可包括由多个方块电极构成的触控阵列，其中，在控制整个显示面板显示图像的同时，控制整个触控面板进行触控侦测的步骤可包括：依次打开像素单元阵列中各行对应的显示驱动信号线，在所述显示驱动信号线被打开的时间内，向各行发送显示信号，同时，对触控阵列中的各行进行触控侦测。
可选地，触控阵列中的一行可对应像素单元阵列中的多行。
可选地，所述触控显示面板可被划分为多个子区域，其中，在控制所述多个子区域中的一个子区域对应的显示面板显示图像的同时，可控制所述多个子区域中的除所述一个子区域之外的其他子区域对应的触控面板进行触控侦测。
可选地，所述显示面板可包括由多个像素单元构成的像素单元阵列，所述触控面板可包括由多个方块电极构成的触控阵列，其中，所述一个子区域可对应触控阵列中的一行，所述一个子区域可对应像素单元阵列中的多行。
采用上述用于触控显示面板的驱动方法，在显示图像的同时进行触控的侦测，以确保在一个显示周期内用于显示的时间和用于触控侦测的时间不会被缩短，使得内嵌式触控显示面板的显示效果和触控效果均得到了保证。
附图说明
图1示出现有的内嵌式触控显示屏中的触控阵列和显示阵列的示意图；
图2示出现有的内嵌式触控显示屏的驱动时序图；
图3所示根据本发明示例性实施例的触控显示面板的驱动时序图。
具体实施方式
现在将详细地描述本发明的示例性实施例，本发明的示例性实施例的示例示出在附图中。下面通过参照附图描述实施例来解释本发明。然而，本发明可以以许多不同的形式实施，而不应被解释为局限于在此阐述的示例性实施例。相反，提供这些实施例使得本公开将是彻底的和完整的，并且这些实施例将把本发明的范围充分地传达给本领域技术人员。
在本发明的示例性实施例中提供一种用于触控显示面板的驱动方法，该触控显示面板可为内嵌式触控显示屏(Incell LCD)，具体说来，该触控显示面板包括用于显示图像的显示面板和用于实现触控侦测的触控面板，所述驱动方法包括：在控制显示面板显示图像的同时，控制触控面板进行触控侦测。即，本发明示例性实施例的用于触控显示面板的驱动方法是触控和显示同时进行，在显示阶段也进行触控信号的侦测。例如，针对一个显示扫描周期，所述一个显示扫描周期均用于显示图像，同时所述一个显示扫描周期也均用于进行触控侦测。
图2示出现有的内嵌式触控显示屏(Incell LCD)的驱动时序图。
从图2中可以看出，现有的Incell LCD的显示时间和触控时间是分时进行，即，显示图像的时候无法进行触控侦测，进行触控侦测的时候无法显示图像。
图3所示根据本发明示例性实施例的触控显示面板的驱动时序图。
从图3可以看出，本发明示例性实施例的触控显示面板是显示和触控同时进行，在一个完整的显示扫描周期(例如，一帧时间)内都是显示时间又都是触控时间。这样，可更大节省时间，提高面板充电率和触控特性。
下面参照图3来详细描述根据本发明示例性实施例的触控显示面板的驱动过程。
在本发明的第一示例性实施例中，在控制整个显示面板显示图像的同时，控制整个触控面板进行触控侦测。这里，所述显示面板可包括由多个像素单元构成的像素单元阵列，所述触控面板可包括由多个方块电极构成的触控阵列，其中，在控制整个显示面板显示图像的同时，控制整个触控面板进行触控侦测的步骤可包括：依次打开像素单元阵列中各行对应的显示驱动信号线，在所述显示驱动信号线被打开的时间内，向各行发送显示信号，同时，对触控阵列中的各行进行触控侦测。作为示例，触控阵列中的一行可对应像素单元阵列中的 多行。
下面以图1所示的内嵌式触控显示屏为例来介绍第一示例性实施例的用于触控显示面板的驱动过程。
如图1所示，Gate电路模块可依次打开与A1/A2/A3/B1/B2/B3/C1/C2/C3/D1/D2/D3对应的全部显示驱动信号线(Gate信号线)，此时，Data电路模块在与A1/A2/A3/B1/B2/B3/C1/C2/C3/D1/D2/D3对应的显示驱动信号线打开的时间内发送A1/A2/A3/B1/B2/B3/C1/C2/C3/D1/D2/D3行的显示信号，与此同时，触控IC采集触控阵列中A、B、C、D行的触控信号。
采用第一示例性实施例的显示驱动方式，在显示过程中，不会停下显示阶段供触控信号的采集，有更多的时间供显示使用，能提高显示效果，由于触控信号的采集也是没有中断的，因此也同时能够提高触控效果。
在本发明的第二示例性实施例中，该触控显示面板可被划分为多个子区域，这里，在控制所述多个子区域中的一个子区域对应的显示面板显示图像的同时，可控制所述多个子区域中的除所述一个子区域之外的其他子区域对应的触控面板进行触控侦测。作为示例，所述一个子区域可对应触控阵列中的一行，所述一个子区域可对应像素单元阵列中的多行。
下面以图1所示的内嵌式触控显示屏为例来介绍第二示例性实施例的用于触控显示面板的驱动过程。
如图1所示，在本示例中，可假设将触控阵列划分为A、B、C、D四行，一行对应一个子区域，对应的显示阵列可分为A1～A3、B1～B3、C1～C3、D1～D3共12行，触控阵列中的A行和显示阵列的A1～A3行是重叠的，触控阵列中的B行和显示阵列的B1～B3行是重叠的，依次类推。
具体说来，Gate电路模块打开与A1/A2/A3(即一个子区域)对应的Gate信号线时，Data电路模块在与A1/A2/A3对应的Gate信号线打开的时间内发送A1/A2/A3行的显示信号，与此同时，触控IC采集触控阵列中B、C、D行(即其他子区域)的触控信号。
在Gate电路模块打开与B1/B2/B3(即一个子区域)对应的Gate信号线时，Data电路模块在与B1/B2/B3对应的Gate信号线打开的时间内发送B1/B2/B3行的显示信号，与此同时，触控IC采集触控阵列中A、C、D行(即其他子区域)的触控信号。
在Gate电路模块打开与C1/C2/C3(即一个子区域)信号线时，Data电路模块在C1/C2/C3信号线打开的时间内发送C1/C2/C3行的显示信号。同时触控IC采集触控阵列中A、B、D行(即其他子区域)的触控信号。
Gate电路模块打开D1/D2/D3(即一个子区域)对应的Gate信号线时，Data电路模块在与D1/D2/D3对应的Gate信号线打开的时间内发送D1/D2/D3行的显示信号，与此同时，触控IC采集触控阵列中A、B、C行(即其他子区域)的触控信号。
采用第二示例性实施例的显示驱动方式，在显示过程中，不会停下显示阶段供触控信号的采集，有更多的时间供显示使用，能提高显示效果，由于触控信号的采集也是没有中断的，因此也同时能够提高触控效果。
此外，在第二示例性实施例中，还使得触控信号的侦测与图像的显示是分区进行，可有效避免了信号交错而对显示画面质量带来的影响。
上述用于触控显示面板的驱动方法，采用显示和触控同时驱动的方式，使得用于显示的时间和用于触控侦测的时间不会被缩短，从而保证了触控显示面板的显示效果和触控效果。
此外，上述用于触控显示面板的驱动方法在有效改善触控显示面板的显示效果和触控效果的情况下，未增加任何的硬件设备，有效降低了触控显示面板的制作成本，使得更容易制作出高刷新率的Incell LCD。
上面已经结合具体示例性实施例描述了本发明，但是本发明的实施不限于此。在本发明的精神和范围内，本领域技术人员可以进行各种修改和变型，这些修改和变型将落入权利要求限定的保护范围之内。

Claims (7)

  1. 一种用于触控显示面板的驱动方法，所述触控显示面板包括用于显示图像的显示面板和用于实现触控侦测的触控面板，其中，所述驱动方法包括：在控制显示面板显示图像的同时，控制触控面板进行触控侦测。
  2. 根据权利要求1所述的驱动方法，其中，针对一个显示扫描周期，所述一个显示扫描周期均用于显示图像，同时所述一个显示扫描周期也均用于进行触控侦测。
  3. 根据权利要求1所述的驱动方法，其中，在控制整个显示面板显示图像的同时，控制整个触控面板进行触控侦测。
  4. 根据权利要求3所述的驱动方法，其中，所述显示面板包括由多个像素单元构成的像素单元阵列，所述触控面板包括由多个方块电极构成的触控阵列，
    其中，在控制整个显示面板显示图像的同时，控制整个触控面板进行触控侦测的步骤包括：
    依次打开像素单元阵列中各行对应的显示驱动信号线，在所述显示驱动信号线被打开的时间内，向各行发送显示信号，同时，对触控阵列中的各行进行触控侦测。
  5. 根据权利要求4所述的驱动方法，其中，触控阵列中的一行对应像素单元阵列中的多行。
  6. 根据权利要求1所述的驱动方法，其中，所述触控显示面板被划分为多个子区域，其中，在控制所述多个子区域中的一个子区域对应的显示面板显示图像的同时，控制所述多个子区域中的除所述一个子区域之外的其他子区域对应的触控面板进行触控侦测。
  7. 根据权利要求6所述的驱动方法，其中，所述显示面板包括由多个像素单元构成的像素单元阵列，所述触控面板包括由多个方块电极构成的触控阵列，
    其中，所述一个子区域对应触控阵列中的一行，所述一个子区域对应像素单元阵列中的多行。
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