CN104503610B - A touch scanning method and a touch display panel, the display device - Google Patents

A touch scanning method and a touch display panel, the display device Download PDF

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CN104503610B
CN104503610B CN201410736047.4A CN201410736047A CN104503610B CN 104503610 B CN104503610 B CN 104503610B CN 201410736047 A CN201410736047 A CN 201410736047A CN 104503610 B CN104503610 B CN 104503610B
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touch
scanning
display
scan
signal
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CN201410736047.4A
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CN104503610A (en
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李洪
温琳
王丽花
袁永
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上海天马微电子有限公司
天马微电子股份有限公司
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Abstract

本发明实施例提供一种触控扫描方法,用于驱动触控显示面板,所述触控显示面板包括多条栅极线,多条公共电极,多条触控感应电极,所述多条公共电极的延伸方向与所述栅极线延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,所述多条公共电极复用为触控驱动电极,所述触控扫描方法包括:向所述栅极线提供显示扫描信号,执行显示扫描;向所述触控驱动电极提供触控扫描信号,执行触控扫描;所述触控扫描和显示扫描不同时发生在交叠的触控驱动电极和栅极线。 Example embodiments provide a touch scanning method of the present invention, for driving a touch display panel, the touch display panel includes a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrodes, said plurality of common the extending direction of the gate electrode lines and extending in a direction parallel to said at least one gate line there is an overlap in the width direction, the plurality of common electrode drive electrode multiplexing a touch, the touch scanning method comprising: providing a display to the gate scanning signal line, a scan performing display; touch scan signals provided to the touch drive electrode, performing touch scanning; scanned and displayed the touch scan does not occur simultaneously in overlapping touch driving electrodes and the gate lines. 本发明提供的触控扫描方法,可以避免显示扫描与触控扫描之间的互相干扰,提高触控显示面板的触控性能。 Touch scanning method of the present invention provides, to avoid interference between the display and the touch scan scan, to improve the performance of the touch panel of the touch display.

Description

一种触控扫描方法及触控显示面板、显示装置 A touch scanning method and a touch display panel, the display device

技术领域 FIELD

[0001] 本发明涉及触控显示技术领域,尤其涉及一种触控扫描方法及触控显示面板、显示装置。 [0001] The present invention relates to a touch display technology, and particularly relates to a touch panel display and the touch scanning method, a display device.

背景技术 Background technique

[0002] 触控显示技术的发展,大大方便的人机交互操作。 [0002] The touch display technology, greatly facilitate human-machine interaction. 常用的触控显示技术,从结构上可以分为Oncell、Incell、Hybr id。 Common touch display technology, the structure can be divided from Oncell, Incell, Hybr id. 为了减小触控显不屏的厚度,触控电极层可能与其他膜层复用,如图1所示的触控显示面板,包括驱动1C,多条栅极线1、多条公共电极2、多条触控感应电极(RX) 3,复用公共电极2为触控驱动电极(TX)。 In order to reduce the thickness of the touch screen is not significant, the touch electrode layer and the other layers may be multiplexed, the touch panel display shown in Figure 1, including 1C, a plurality, a plurality of common electrode gate line driver 2 , a plurality of touch sensing electrodes (RX) 3, the common electrode driving multiplexing electrode (TX) is a touch. 通常情况下,由若干个驱动1C分别为面板提供显示驱动信号和触控信号,图1仅为示意图。 Typically, each providing a display driving signal and the touch signal generated by a plurality of driving the panel 1C, FIG. 1 is only schematic. 一般情况下,公共电极的宽度覆盖若干条栅极线,如图2所示。 In general, the width of the common electrode covering the plurality of gate lines, as shown in FIG. 图2为图1中S区域的放大示意图,其包括子像素4,公共电极2的宽度覆盖四条栅极线1。 FIG 2 is an enlarged view of region S in FIG. 1, which includes sub-pixels 4, the width of the common electrode 2 to cover the gate line 1 four. 在功能膜层的复用时,显示功能与触控功能会存在互相千扰。 When multiplexing function layer, and the touch display another feature the presence of one thousand interference.

发明内容 SUMMARY

[0003] 鉴于上述技术问题,本发明提供一种提高触控显示面板触控性能的解决方案。 [0003] In view of the above problems, the present invention provides an improved touch display panel of the touch-performance solution.

[0004] —方面,本发明优选实施例提供一种触控扫描方法,用于驱动触控显示面板,所述触控显示面板包括多条栅极线,多条公共电极,多条触控感应电极,所述多条栅极线与所述多条公共电极位于不同层,所述多条公共电极的延伸方向与所述栅极线延伸方向平行,所述多条公共电极复用为触控驱动电极,所述触控扫描方法包括: [0004] - aspect, a preferred embodiment of the present invention provides a touch scanning method for driving a touch display panel, the touch display panel includes a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrode, the plurality of gate lines and the plurality of common electrodes on different layers, the plurality of common electrodes extending direction of the gate line extending in a direction parallel to said plurality of multiplexed into a common electrode touch drive electrodes, the touch scanning method comprising:

[0005] 向所述栅极线提供显示扫描信号,执行显示扫描; [0005] providing a display scanning signal to the gate lines, a scan performing display;

[0006] 向所述触控驱动电极提供触控扫描信号,执行触控扫描; [0006] provides a scan signal to the touch of the touch drive electrodes touch scanning performed;

[0007] 所述触控扫描和显示扫描不同时发生在交叠的触控驱动电极和栅极线。 The [0007] display and touch scanning scan does not occur simultaneously and the gate driving electrode line overlapping the touch.

[0008]优选的,当显示扫描执行到某一行栅极线时,与此行栅极线没有交叠的触控驱动电极中某一条触控驱动电极执行触控扫描,或者所有的触控驱动电极停止提供触控扫描信号,执行噪音扫描。 [0008] Preferably, when the scanning execution to a display gate line, the gate line and this line does not overlap a touch driving electrodes perform a touch driving touch scanning electrode, or all of the touch driving touch scanning signal electrodes stops supplying, performing noise scan.

[0009] 另一方面,本发明优选实施例还提供一种触控显示面板,包括多条栅极线,多条公共电极,多条触控感应电极,栅极驱动单元,触控驱动单元,所述多条公共电极的延伸方向与所述栅极线延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,所述多条公共电极复用为触控驱动电极,其中, [0009] In another aspect, a preferred embodiment of the present invention further provides a touch display panel, comprising a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrodes, a gate driving unit driving the touch units, said plurality of common electrodes extending in the direction of the gate line extending in a direction parallel to at least one of the gate line there is an overlap in the width direction, the plurality of multiplexed into a common electrode touch driving electrodes, wherein ,

[0010] 所述栅极驱动单元用于向所述栅极线提供显示扫描信号; [0010] The gate driving unit for providing a display scanning signal to the gate lines;

[0011] 所述触控驱动单元用于向所述触控驱动电极提供触控扫描信号或者检测所述触控感应电极的信号; _ [0011] The touch driving unit for driving the scan electrodes to provide a touch signal or a detection signal of the touch sensing electrodes to the touch; _

[0012] 所述栅极驱动单元和所述触控驱动单元不同时向交叠的栅极线和触彳空驱动电极提供显示扫描信号和触控扫描信号。 [0012] The gate driving unit and the driving unit are not simultaneously touch scan signal and providing a display of the touch scan signals to the gate lines and a touch drive electrode overlapping the left foot space. 、、 ,,

[0013] 优选的,当所述栅极驱动单元给某行栅极线提供显示扫描信号时,所述触控驱动单元向不与此行栅极线交叠的触控驱动电极中某一条触控驱动电极提供触控扫描信号,或者触控驱动单元不提供触控扫描信号,而只检测所述触控感应电极的信号。 [0013] Preferably, when the gate driving unit provides a scan signal to the display gate line, the driving unit drives the touch electrodes in a one-touch does not overlap with the gate line touch this a scanning electrode driving control signal to provide the touch, or touch driving unit does not provide a touch scan signal, only the detection signal of the touch sensing electrodes.

[0014] 另一方面,本发明优选实施例还提供一种显示装置,包括上触控显示面板。 [0014] On the other hand, the present preferred embodiments of the invention further provides a display apparatus comprising a touch display panel.

[0015] 本发明提供的触控扫描方法及触控显示面板、触控显示装置,至少具有如下有益效果:避免显示扫描与触控扫描之间的互相干扰,提高触控显示面板的触控性能。 [0015] The scanning method of the touch and the touch panel of the present invention provides a display, touch display device having at least the following advantages: to avoid interference between the display and the touch scan scan, to improve the performance of the touch panel of the touch display .

附图说明 BRIEF DESCRIPTION

[0016] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术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,还可以根据提供的附图获得其他的附图。 [0016] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only examples of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive other drawings from the accompanying drawings provided.

[0017] 图1为常规的触控显示面板结构示意图; [0017] FIG. 1 is a schematic structure of a conventional touch panel display;

[0018] 图2为图1部分区域放大示意图; [0018] Figure 2 is an enlarged schematic partial region;

[0019] 图3A为另一种常规触控显示面板结构示意图; [0019] FIG 3A is a schematic structure of another conventional touch panel display;

[0020] 图3B为图3A所示触控显示面板常规的驱动时序图; [0020] FIG. 3B conventional panel driving timing chart of a touch display shown in Figure 3A;

[0021] 图4为本发明实施例一提供的触控扫描方法流程示意图; [0021] FIG. 4 is a schematic flow diagram of a method for touch scanning embodiment of the present invention is provided;

[0022]图5为本发明实施例二提供的触控显示面板驱动时序图; [0022] FIG. 5 of the touch panel according to a second embodiment of a display driving timing chart of the present invention;

[0023]图6为本发明实施例三提供的触控显示面板结构示意图; [0023] FIG. 6 is a schematic view of a touch panel according to a third embodiment of the present invention, structure of the display;

[0024]图7为本发明实施例四提供的触控显示装置结构示意图。 [0024] Figure 7 a schematic view of a touch according to a fourth embodiment of the structure of a display device of the present invention.

具体实施方式 Detailed ways

[0025]下面结合附图和实施例对本发明作进一步的详细说明。 Drawings and embodiments of the present invention will be further described in detail [0025] below in conjunction. 可以理解的是,此处所描述的具体实施例仅仅用于解释本发明,而非对本发明的限定。 It will be appreciated that the specific embodiments described herein are merely to illustrate the invention, not limitation of the invention. 另外还需要说明的是,为了便于描述,附图中仅示出了与本发明相关的部分而非全部。 Also to be noted also that, for convenience of description, the accompanying drawings illustrate only the part related to the present invention, but not all.

[0026]需要说明的是,本发明实施例提供的触控扫描方法,适用于触控扫描与显示扫描存在互相千扰的触控显示面板,尤其适用于触控功能层与显示功能层有复用的触控显示面板,如图1所示,其中复用公共电极为触控驱动电极,因此当显示扫描时,驱动1C需要给公共电极提供显示所需的公共电极信号Vcom;当触控扫描时,驱动1C需要给公共电极提供触控所需的驱动信号,同时驱动1C检测触控感应电极RX的信号,以判断是否有触控动作发生,也即触控扫描指的是给触控驱动电极输入扫描信号,检测触控感应电极的信号变化。 [0026] Incidentally, the touch scanning method according to an embodiment of the present invention is applied to the touch scanning and the display scan one thousand interference exists another touch display panel, the touch is particularly suitable for the functional layer and the display layer multiplexing function with the touch display panel, shown in Figure 1, wherein the common electrode driving multiplexing a touch electrode, so when the display scan, driving need common electrode signal to the common electrode to provide the desired display 1C Vcom; when the touch scanning when the required driving 1C driving signal to the common electrode touch required, while the drive signal RX 1C detected touch sensing electrodes to determine whether a touch action occurs, i.e., the touch scan driver refers to the touch electrode scanning signal input, a signal change detection touch sensing electrodes. 优选的, 显示扫描与触控扫描分时执行。 Preferably, the display and the touch scan scan time shares. 另外,通常情况下,在执行触控扫描之前或者在所有触控驱动电极完成触控扫描之后,驱动1C会执行噪音(Noise)扫描,也即在触控驱动电极没有输入扫描信号时,检测触控感应电极的信号。 In addition, usually, before and after performing the touch scanning electrode driving or touch scanning is completed in all the touch, 1C drive performs noise (Noise) scan, i.e. there is no drive electrode scanning signal in the touch input, the touch-detection control signal sensing electrode. 触控功能正常的情况下,此时检测信号没有变化, 否则需要调节触控信号阈值,初始化触控系统。 Under normal circumstances touch function, at this time the detection signal is not changed, or signal threshold necessary to adjust the touch, touch system initialization. 一次噪音扫描的时间比扫描一条触控驱动电极的时间要长。 A scan time of a noise touch driving electrodes than the scan time longer. 通常,一次噪音扫描与所有触控驱动电极的触控扫描构成一个触控扫描周期,常用的显示频率为60HZ,触控频率为120HZ,也即一帧显示中,需要完成两个触控扫描周期。 Typically, a touch scanning electrodes and the scan driving noise of all the touch constituting a touch scanning period, is used to display the frequency 60HZ, the touch frequency of 120HZ, i.e. a display, a touch scanning cycles need to complete the two . 优选的,噪音扫描与显示扫描也分时执行。 Preferably, the noise is also time-scan display scanning performed.

[0027]上述面板结构的驱动时序,一般是把栅极线分为若干组,一组包含m根gate,扫描一组栅极线后,进行触控驱动电极TX的扫描,通常栅极线扫描的方向与触控驱动电极TX的扫描方向是相反进行的,例如栅极线由上至下扫描,则触控驱动电极TX由下至上扫描。 [0027] The driving timing of the panel structure, the gate line is generally divided into several groups, one group comprising Gate and m, after scanning the group of gate lines, driving the touch scan electrodes (TX), a gate line scanning generally TX electrode scanning direction is the opposite direction of the touch driving is carried out, for example, the gate line from top to bottom scan, the touch driving scan electrodes (TX) from the bottom. 当完成所有触控电极TX扫描之后,会进行一次Noise扫描(Nosie扫描指在不给触控驱动电极TX 施加扫描信号的情况下,检测触控感应电极RX的信号),或者在触控驱动电极TX开始扫描之前,进行一次Noise扫描。 After completion of all the touch scan electrodes TX, will once Noise scan (in the case Nosie scanning electrode driving means is not applying a scanning signal to the TX touch, the touch sensing electrodes detecting the RX signal), or at the touch drive electrode before TX start scanning, scan once Noise. 在进行顺序扫描时,当栅极线扫描的位置和触控驱动电极TX扫描的位置发生重叠时,也即触控驱动电极TX覆盖的某一行栅极线发生开启/关闭动作,此时, 栅极线的扫描动作会对重叠的触控驱动电极产生噪音信号干扰,使得触控检测结果不精准,导致触控显示面板的触控灵敏度降低,不能实现高触控的要求应用,如手套、防水等。 When performing sequential scanning, when the position of the gate lines and the scanning position of the scanning touch driving electrodes TX overlap, i.e. cover the touch driving electrodes TX occur a gate line on / off operation, this time, the gate epipolar line scanning operation will touch driving electrodes overlapping signal interference noise, so that accurate test results do not touch, the touch display resulting in reduced sensitivity of the touch panel can not achieve the required application of high touch, such as gloves, waterproof Wait. [0028]图3B所示为触控显示面板常规的驱动时序图,图3B对应的触控显示面板如图3A所不,图3A仅是为了说明常规驱动时序列举的一个简单例子,此面板有16行栅极线,一条触控驱动电极覆盖四条栅极线,触控扫描的频率与显示扫描频率相同,均为60HZ。 [0028] FIG. 3B is a timing chart of driving the conventional panel, a touch display, the touch display corresponding to FIG. 3B does not, as shown in FIG. 3A. 3A panel is only to illustrate a simple example of a conventional driving timing recited, this panel has gate line 16, a touch driving gate electrode covers four lines, the same touch scanning frequency of the display scanning frequency, both 60HZ. 通常情况下, 噪音扫描时间为单个触控驱动电极的扫描时间的若干倍,假设噪音扫描时间等效为四倍单条触控驱动电极的扫描时间。 Typically, the scan time for a single noise is a multiple of the scan time of the touch drive electrode, the noise is assumed to be four times the scan time equivalent to a single scanning time touch driving electrodes. 如图3A所示,在一帧完整的显示扫描周期内,在触控驱动电极开始扫描之前,先进行噪音扫描。 As shown in FIG. 3A, the display of a complete scanning cycle, the touch driving electrodes prior to start scanning, the noise to be scanned. 由于噪音扫描时间为单条触控驱动电极扫描时间的4倍, 则每隔两行栅极线扫描,进行一次噪音扫描或者TX扫描。 Scan time due to noise as a single touch drive electrode scanning time of 4 times, every two gate line scanning, or scan for a noise TX scan. 因此,在G1〜G2、G3〜G4、G5〜G6、 G7〜G8显示扫描完成之后,进行噪音扫描。 Thus, in G1~G2, G3~G4, G5~G6, G7~G8 displayed after scanning is completed, a scanning noise. 假设显示扫描与触控扫描的方向相反,则在G9〜 G10显示扫描之后,对第一触控驱动电极Tn进行触控扫描,在G11〜G12显示扫描之后,对第二触控驱动电极TX2进行触控扫描,。 Assumed that the display contrast and the touch scan direction of the scan, the display scan after G9~ G10, Tn first touch driving electrodes for touch scanning, after scanning G11~G12 display, a second touch driving electrodes for TX2 touch scanning. 此时,由于第二触控驱动电极TX2覆盖了G11和G12行, 因此G11和G12在显示扫描时,其栅极线中的信号会发生变化,即存在开启和关闭的过程,会对第二触控驱动电极TX2的触控扫描产生干扰,尤其是G12行栅极线发生的开启/关闭过程会对TX2的触控扫描产生干扰,导致触控结果不准确。 At this time, since the second touch driving electrodes G11 and G12 TX2 row covers, G11 and G12 so when the display scan, the signal in which the gate line is changed, i.e., the presence of the opening and closing processes, will have a second touch driving the touch scanning electrodes TX2 interference, in particular gate line G12 occur on / off touch scanning procedure will cause interference TX2, resulting in inaccurate touch. G11、G12和TX2由于存在物理上的重叠,且Gl 1、G12的显示扫描与TX2的触控扫描发生在此处,定义此种情况为触控扫描与扫描扫描同时发生在交叠的触控驱动电极和栅极线,也即本发明中的“同时”指的是物理重叠处的触控驱动电极和栅极线执行触控扫描和显示扫描。 G11, G12 and TX2 since overlapping physical and Gl 1, G12 of the touch display scan scan TX2 occurs here, this case is defined as a touch scanning and scanning scan occur simultaneously overlapping touch the drive electrodes and the gate lines, i.e., in the present invention, "simultaneous" refers to a physical overlap of the touch drive line and the gate electrode and the display scan performing touch scanning. 通常情况,在一帧显示周期中,显示扫描与触控扫描发生在交叠处的栅极线与触控驱动电极的次数,由显示频率与触控频率决定。 Generally, in a display period, the display with the touch scan frequency and scan the gate lines overlap occurs at the touch drive electrodes, the frequency determined by the frequency of the touch display. 假设显示频率为60HZ,触控频率为60HZ,则在一帧中会发生一次;若触控频率为120HZ, 则会发生两次。 It assumed that the display frequency 60HZ, the touch frequency 60HZ, it will occur in a time; if the touch frequency of 120HZ, occurs twice.

[0029] 实施例一 [0029] Example a

[0030] 图4为本发明实施例一提供一种触控扫描方法,用于驱动触控显示面板,触控显示面板包括多条栅极线,多条公共电极,多条触控感应电极,其中,公共电极的延伸方向与栅极线延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,公共电极复用为触控驱动电极,触控扫描方法包括: [0030] FIG. 4 embodiment the present invention provides a touch a scanning method for driving a touch display panel, touch display panel includes a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrodes, wherein the extending direction of the common electrode with the gate lines extending in a direction parallel to at least one of the gate line there is an overlap in the width direction, multiplexes the common electrode drive electrode is a touch, the touch scanning method comprising:

[0031] 向所述栅极线提供显示扫描信号,执行显示扫描; [0031] providing a display scanning signal to the gate lines, a scan performing display;

[0032] 向所述触控驱动电极提供触控扫描信号,执行触控扫描; [0032] provides a scan signal to the touch of the touch drive electrodes touch scanning performed;

[0033] 所述触控扫描和显示扫描不同时发生在交叠的触控驱动电极和栅极线。 [0033] The touch scanning and the display scan electrode driving does not occur simultaneously and the gate line overlapping the touch.

[0034]向栅极线提供显示扫描信号,指的栅极驱动单元给对应行的栅极线提供开启信号,同时给相应的公共电极提供公共电压信号。 [0034] provides a scan signal to the display gate line, the gate driving unit refers to the row corresponding to the gate line provided on signal, while providing a common voltage signal to the corresponding common electrode. 栅极开启信号用于打开本行的子像素的开关元件,例如液晶显示面板,开关元件一般是TFT (薄膜晶体管),栅极线输入开启信号,使得TFT的栅极打开,TFT的漏极连接至数据线,显示数据信号通过数据线给本行子像素输入数据信号,并存储在像素电极中。 The gate turn-on signal for turning the switching elements of sub-pixels Bank, for example, a liquid crystal display panel, the switching element is generally TFT (thin film transistor), a gate turn-on signal input line, such that the open gate of the TFT, the TFT is connected to the drain to the data lines, a display data signal to the data bank subpixel input signal through the data line, and stored in the pixel electrode. 待数据信号完成输入后,栅极驱动单元停止输出开启信号, 关闭开关元件。 After completion of the data signal to be input, the driving unit stops outputting the gate-on signal, the switching element off. 也即显示扫描包括栅极线的开启到关闭,期间完成数据信号的输入。 I.e. the display scan line to include a gate turn off, the input data signal during completion. LUMW 冋触控驱动电极提供触控扫描信号,同时检测触控感应电极Rx的信号,以执行触控扫描。 LUMW Jiong touch driving electrodes to provide the touch scanning signal while the detection signal of the touch sensing electrode Rx to perform touch scanning. 常用的触控方式有电容触控、电阻触控等,以电容式触控为例,向触控驱动电极TX 提供触控扫描信号,若有触控发生,则会引起触控驱动电极与触控感应电极之间的电容值变化,通过检测触控感应电极Rx的信号,则能检测出信号变化。 Commonly used methods are capacitive touch the touch, and other resistive touch, capacitive touch, for example, driving electrodes TX provides scan signals to the touch of the touch, if a touch occurs, it will cause the touch drive electrode and contact capacitance variation between the sensing electrode controlled by the detection signal of the touch sensing electrode Rx, the signal change can be detected. 触控驱动电极界定触控位置的X方向,触控感应电极界定触控位置的Y方向,根据XY的坐标,即可识别触控位置。 The touch drive electrode defining a touch position in the X direction, Y direction of the touch sensing electrodes defining a touch position according to the XY coordinates, the touch position can be identified. 实施例一中,公共电极与栅极线延伸方向相同且在宽度方向上与至少一条栅极线有交叠,公共电极复用为触控驱动电极TX。 The same first embodiment, the common electrode and the gate line direction and extending in the width direction there is an overlap of at least one gate line, a common electrode touch driving electrodes alternately as TX. 由前述内容可知,通常把栅极线分组驱动,驱动完一组栅极线之后,给一条触控驱动电极n提供触控扫描信号。 It is seen from the foregoing, typically the gate line driver packet, after completing a set of gate driving line, to provide a touch driving electrode of the n touch scanning signal.

[0036]所述触控扫描和显示扫描不同时发生在交叠的触控驱动电极和栅极线。 The [0036] display and touch scanning scan does not occur simultaneously and the gate driving electrode line overlapping the touch. 由于触控驱动电极与至少一条栅极线有交叠,也即触控驱动电极与栅极线存在物理上的重叠,优选触控扫描与显示扫描分时执行,噪音扫描与显示扫描也分时进行,一般情况下,触控扫描与噪音扫描由同一个驱动单元执行,显示扫描由另一个驱动单元执行。 Since the touch drive electrode and the at least one gate line there is an overlap, i.e. there is an overlap on the touch driving electrode and the gate lines physically, preferably with the touch scan display scanning time shares, noise is also time-scan display scanning carried out, in general, touch noise and scanned by the same scan driving unit performs a display driving unit performs scanning by another. 通常情况下,分时扫描是把栅极线分为若干组,驱动单一完成一组栅极线的显示扫描之后,执行一次触控扫描或噪音扫描。 After the usual case, the scanning is time-divided into several groups to the gate line, a display scanning driver set to complete a single gate line, perform a touch scanning or scanning noise. 一般显示扫描的方向与触控扫描的方向相反,也即对栅极线由上往下进行显示扫描,对触控驱动电极由下往上进行触控扫描。 Usually displayed scan direction opposite to the scanning direction of the touch, i.e. the gate lines display scanning from top to bottom, the touch on the touch drive electrodes are scanned from bottom to top. 随着显示扫描与触控扫描的进行,现有技术中,触控扫描与显示扫描会同时发生在交叠的触控驱动电极和栅极线,而本发明中,通过调整驱动单元的输出信号,使得在任何一帧时间内,触控扫描与显示扫描不会同时发生在有交叠的触控驱动电极和栅极线。 As the scanning and display of the touch scan, the prior art, the touch scan occur simultaneously driving the display scan electrode and the gate line overlapping the touch, and the present invention, by adjusting the output signal of the drive unit , so that at any one time, the touch scanning and the display scan electrode driving do not occur simultaneously and there is an overlap of the gate lines in the touch. 因此,避免了栅极线开启到关闭的动作千扰触控扫描,提高触控检测的精确度。 Thus, to avoid the closing of the gate lines to turn on the touch scanning operation of one thousand interference, improve the accuracy of the touch detection.

[0037]实施例一提供的触控扫描方法,完整触控扫描周期依然包括所有的触控驱动电极的扫描时间和噪音扫描时间,其通过调整噪音扫描在整个触控扫描周期的位置,既不改变整个触控扫描周期的时长,又避免了执行显示扫描的栅极线对与其交叠的触控驱动电极扫描的影响,提高了触控显示面板的触控性能。 [0037] The touch scanning method according to a first embodiment, comprises a still complete scan cycle of the touch scan time and the scan time of all the noise of the touch drive electrode, by adjusting the scanning position of the noise throughout the scan cycle of the touch, neither change the entire duration of the touch scanning period, but also to avoid the influence of the gate line driving display scan electrodes perform a scan of their overlapping touch, to improve the performance of the touch panel of the touch display.

[0038]优选的,实施例一的触控扫描方法,通过调整驱动单元的信号输出,使得当显示扫描执行到某一行栅极线时,则与此行栅极线没有交叠的触控驱动电极中某一条触控驱动电极执行触控扫描,或者驱动单元不向任何一条触控驱动电极提供触控扫描信号,而直接检测触控感应电极的信号,执行噪音扫描。 [0038] Preferably, the touch of a scanning method embodiment, by adjusting the driving signal output unit, such that when the scanning execution to a gate line display, this is not the gate line overlapping the touch driving performing a touch driving a touch scanning electrodes, or the driving unit does not provide a touch scan signals to any one of the touch driving electrodes, and the signal is directly detected touch sensing electrodes, a scan performing noise. 如此来避免触控扫描与显示扫描同时发生在有交叠的触控驱动电极和栅极线,从而避免显示扫描与触控扫描之间的信号干扰。 Touch scanning and thus to avoid simultaneous driving display scan electrodes and the gate lines have overlapping touch, thereby avoiding signal interference between the display and the touch scan scan.

[0039] 实施例二 [0039] Second Embodiment

[0040] 为了说明实施例一所述的触控扫描方法,本发明实施例二提供了触控显示驱动时序示意图,如图5所示。 [0040] To illustrate the method according to the touch scanning embodiment, two embodiments of the present invention provides a touch driving timing diagram, displayed as shown in FIG. 图5所示的时序图对应图3A所示的触控显示面板结构。 FIG 5 corresponds to the timing chart shown in FIG. 3A as shown in the touch panel display structure. 实际产品中, 栅极线行数由显示屏分辨率决定,比如FHD的显示屏,分辨率为1920*10S0,其包括10S0行栅极线,相应的,单条触控驱动电极覆盖的栅极线数目也很多,因此,实施例二仅是为了方便描述,以图3A的结构为例。 In the actual product, the number of gate line is determined by the display resolution, such as FHD display with a resolution of 1920 * 10S0, 10S0 comprising a gate line, a corresponding, single touch driving gate electrode covered wire a lot number, and therefore, according to the second embodiment is merely for convenience of description, an example in the structure of FIG. 3A. 同样假设显示扫描与触控扫描的方向相反,显示扫描频率与触控扫描频率均为60HZ。 Also assume that the direction of scanning of the touch display scan contrast, the touch display scanning frequency scanning frequency are 60HZ.

[0041] 在图3A所示的触控显示面板,当G1〜G2执行显示扫描之后,由于G1/G2行与第一触控驱动电极TX1不存在物理上的重叠,因此第一触控驱动电极TX1输入触控扫描信号,执行触控扫描。 [0041] shown in FIG. 3A of the touch panel display, the display scan performed after G1~G2, since G1 / G2 of the first row overlap the touch drive electrodes TX1 physically does not exist, the first touch driving electrodes TX1 touch scanning signal input, performs touch scanning. 当G3〜G4执行显示扫描之后,由于G3/G4行与第二触控驱动电极TX2不存在物理上的重叠,因此第二触控驱动电极TX2输入触控扫描信号,执行触控扫描。 After G3~G4 display scanning performed due G3 / G4 line and the second touch drive electrode TX2 physically overlap does not exist, the second touch input TX2 touch scanning electrode driving signal, performing touch scanning. 当G5〜G6执行显示扫描之后,由于G5/G6行与第三触控驱动电极TX3存在物理上的重叠,此时,不向第三触控驱动电极TX3提供触控扫描信号,而是直接执行噪音扫描,也即触控驱动电极TX1〜TX4中任何一条都不提供触控扫描信号,而直接检测触控感应电极RX的信号。 After G5~G6 display scanning performed due to G5 / G6 of the third line of the touch drive electrode overlapping physical TX3, at this time, the electrode is not driven to provide a third touch touch scanning signal TX3, but directly performs scanning noise, i.e., do not provide a touch driving any touch scanning signal electrodes TX1~TX4, the touch sensing electrodes directly detected RX signal. 由于噪音扫描的时长为单条触控驱动电极的若干倍,图5所示的噪音扫描时长为4倍单条触控驱动电极的触控扫描时间。 Since the duration of noise as a single touch scanning a plurality of times of driving electrodes, a length of the touch scan four times the single touch driving noise when scanning electrodes shown in Fig. 当G5〜G6执行显示扫描之后,开始执行噪音扫描,则在G7〜G8、G9〜G10、G11〜G12 执行显示扫描之后,继续执行噪音扫描。 When G5~G6 perform display scanning, scanning noise started, then after G7~G8, G9~G10, G11~G12 perform display scanning, scanning the noise continues. 在以3〜G14执行显示扫描之后,给第三触控驱动电极TX3输入触控扫描信号,执行触控扫描。 After 3~G14 to perform display scanning, to the third touch driving electrodes TX3 touch scanning signal input, performs touch scanning. 由于G13〜G14与第三触控驱动电极TX3没有重叠, 因此,不会影响第三触控驱动电极TX3的触控扫描。 Since G13~G14 third touch driving electrodes TX3 not overlap, and therefore, it does not affect the touch scanning the third touch driving electrodes TX3. 同理,在G15〜G16执行显示扫描之后,给第四触控驱动电极TX4输入触控扫描信号,执行触控扫描。 Similarly, after performing display scanning G15~G16, to the fourth touch driving electrode TX4 touch scanning signal input, performs touch scanning. 当整个显示扫描完成一帧扫描之后,所有四条触控驱动电极H1〜TX4均完成了触控扫描,且完成了噪音扫描,也即完成了一整个触控扫描周期。 When the scanning is completed an entire display scan electrode H1~TX4 all four touch driving a touch scanning are completed, and the completion of scanning noise, i.e., a complete cycle of scanning the entire touch. 因此,既不改变整个触控扫描周期的时长,又避免了执行显示扫描的栅极线对与其交叠的触控驱动电极扫描的影响,提高了触控显示面板的触控性能。 Thus, neither the change of the touch throughout the duration of the scanning period, but also to avoid the influence of the gate line perform display scan driving scan electrodes of touch overlap therewith, to improve the performance of the touch panel of the touch display.

[0042] 上述扫描过程,即是通过调整栅极驱动单元和触控驱动单元,使得任何一条栅极线执行显示扫描时,要么是与此行栅极线没有交叠的触控驱动电极中某一条触控驱动电极执行触控扫描,要么是所有的触控驱动电极停止提供触控扫描信号,而直接检测触控感应电极的信号,执行噪音扫描。 [0042] the scanning process, i.e., by adjusting the gate driving unit and a touch driving unit, so that any one of the gate lines display scanning is performed, either with this gate line does not overlap a touch driving electrodes performing a touch driving touch scanning electrodes, either all of the touch driving electrodes stops supplying touch scanning signal, the signal is directly detected touch sensing electrodes, a scan performing noise.

[0043] 实施例三 [0043] Example three

[0044] 图6所示为本发明实施例三提供的触控显示面板结构示意图。 Present a schematic view of a touch panel structure shown in [0044] FIG. 6 according to a third embodiment of the invention. FIG. 如图6所示,触控显示面板包括多条栅极线1,多条公共电极2,多条触控感应电极3,触控驱动单元4,栅极驱动单元5。 6, the touch panel display 2 includes a plurality of gate lines, a plurality, a plurality of touch sensing electrodes of the common electrode 3, the touch driving unit 4, a gate driving unit 5. 具体的,公共电极2的延伸方向与栅极线1延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,公共电极2复用为触控驱动电极,其中,栅极驱动单元5用于向栅极线提供显示扫描信号,也即用于向栅极线提供开启信号,以打开对应行子像素的开关元件,完成显示数据的输入。 Specifically, the extending direction of the common electrode 2 and the gate lines 1 extending in a direction parallel with said at least one gate line in the width direction overlap the common electrode 2 multiplex a touch drive electrode, wherein the gate driver means 5 for providing a scanning signal to the gate line display, i.e. for providing a turn-on signal to the gate lines to turn on the switching element corresponding to the row sub-pixels, the input display data is completed. 触控驱动单元4用于向触控驱动电极2提供触控扫描信号,或者检测所述触控感应电极3的信号,通过向触控驱动电极2提供触控扫描信号,并检测触控感应电极3的信号,以检测是否有触控发生,完成触控扫描。 A driving unit 4 for driving the touch electrode 2 to provide the touch touch scanning signal, or a signal of the touch sensing electrode 3 is detected, the scan signals provided by the touch to the touch drive electrode 2, and detects the touch sensing electrodes 3 signal to detect whether a touch occurs, the touch scanning is completed. 或者不向触控驱动电极输入触控扫描信号, 直接检测触控感应电极的信号,完成噪音扫描。 The touch electrode is not driven or touch scanning signal input, a detection signal directly touch sensing electrodes, to complete scanning noise.

[0045]通过调整栅极驱动单元和触控驱动单元的信号输出,使得在一帧中任何时间内, 栅极驱动单元提供显示扫描信号的栅极线与触控驱动单元提供触控扫描信号的触控驱动电极不是交叠的栅极线和触控驱动电极。 [0045] By adjusting the gate driving unit and a touch driving signal output unit, so that the gate line drive unit and the touch at any time, the gate driving unit displays a scanning signal is provided in a touch scanning signal touch driving electrodes not overlapping the gate electrode line and the touch control. 进一步的,当栅极驱动单元5向某一行栅极线提供显示扫描信号时,则触控驱动单元4向不与此行栅极线交叠的触控驱动电极中某一条触控驱动电极提供触控扫描信号,或者触控驱动单元4不提供触控扫描信号,而只检测所述触控感应电极的信号,以执行噪音扫描。 Further, when the gate drive unit 5 provides a display of a scan signal to the gate line, the touch driving unit 4 for a one touch driving electrodes driving electrode does not overlap the gate line and this line to provide a touch touch scanning signal, the driving unit 4 or the touch touch scanning signal is not provided, and only the detection signal of the touch sensing electrodes to perform scanning noise. 具体的工作原理可见实施例一与实施例二,在此不再赘,。 Specific works with a visible embodiment according to the second embodiment, which is not redundant. 优选的,显示扫描与触控扫描分时进行,显示扫描与噪音扫描分时进行。 Preferably, the display and the touch scan time-sharing scanning, scanning and display time-sharing scanning noise. 具体来说,在显示扫描时,栅极驱动单元5提供栅极驱动信号至栅极线丨,触控驱动单元4提供公共电压信号至公共电极2。 Specifically, when the display scan, the gate driving unit 5 provides gate drive signals to the gate line Shu, the touch driving unit 4 provides the common voltage signal to the common electrode 2. 在触控扫描时,触控驱动单元4向触控驱动电极2 (公共电极)提供触控扫描信号,栅极驱动单元5不向栅极线1提供栅极驱动信号,等触控扫描完成之后,触控驱动单元4 向公共电极2提供公共电压信号,以实现画面显示。 After scanning the touch, the touch driving unit 4 drives 2 (common electrode) provided to touch the touch scanning signal, the gate driving unit 5 does not provide a gate driving signal to the gate line 1, and the like touch scanning is completed , the touch drive unit 4 provides the common voltage signal to the common electrode 2, in order to achieve screen display. 噪音扫描时,触控驱动单元4不向触控驱动电极2提供触控扫描信号,直接接收触控感应电极3的信号。 When the scanning noise, touch driving unit 4 does not touch electrode 2 is driven in the scanning signal to provide the touch, the touch sensing electrode directly receives the signal 3. 等噪音扫描执行完之后,触控驱动单元4向触控驱动电极2提供公共电压信号,以实现画面显示。 After executing the scanning noise, etc., the touch drive electrode driving unit 4 to the common voltage of the touch signal 2, in order to achieve screen display.

[0046]需要注意的是,本实施例中,所示触控驱动单元4设置在面板上,但本发明并不以此为限,有些触控驱动单元设置在柔性电路板(FPC)或主电路板上,通过绑定工艺(bonding)绑定至显示面板上,并提供触控扫描信号或者接收检测触控感应电极的信号。 [0046] Note that, in this embodiment, the touch driving unit 4 is provided on the panel as shown, but the present invention is not limited thereto, some touch driving unit is disposed in the flexible circuit board (FPC) or master circuit board, by binding the binding process (bonding) onto the display panel, or a touch scan signals and provides a received signal to detect the touch sensing electrodes. 另夕卜,为公共电极提供公共电压信号的还可以由栅极驱动单元5,或者数据驱动单元(图中未示出)等其他驱动单元提供信号,图6所示的实施例并不构成对本发明的限制。 Another Bu Xi, supply a common voltage to the common electrode signal may also (not shown) by a gate driver unit 5, the data driving unit or the driving unit and other signals, the embodiment shown in FIG. 6 does not constitute the present restrictive of the invention.

[0047]实施例四 [0047] Fourth Embodiment

[0048]本发明实施例四提供一种触控显示装置,如图7所示,触控显示装置1〇包括触控显示面板20,其中,触控显示面板20结构如同实施例三所提供的触控显示面板。 [0048] The four embodiments of the present invention provides a touch display device, as shown, the touch display apparatus 1〇 7 includes a touch panel display 20, wherein the structure of the touch panel display 20 according to a third embodiment as provided touch display panel.

[0049]显然,上述实施例仅用于详细表述本发明,并不构成对本发明保护范围的限制。 [0049] Clearly, the above-described embodiments are merely detailed embodiments of the present invention is expressed, it does not limit the scope of the present invention. 在本发明的构思下,本领域的普通技术人员任何没有创造性劳动而进行的各种改动和变型, 均属于本发明权利要求的保护范围。 In the concept of the invention, those of ordinary skill in the art without any inventive work carried out various modifications and variations, all fall within the scope of the claims of the invention.

Claims (13)

1. 一种触控扫描方法,用于驱动触控显示面板,所述触控显不面板包括多条栅极线,多条公共电极,多条触控感应电极,所述多条公共电极的延伸方向与所述栅极线延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,所述多条公共电极复用为触控驱动电极,所述触控扫描方法包括: 向所述栅极线提供显示扫描信号,执行显示扫描; 向所述触控驱动电极提供触控扫描信号,执行触控扫描; 所述触控扫描和显示扫描不同时发生在交叠的触控驱动电极和栅极线; 其中,当显示扫描执行到某一行栅极线时,所有的触控驱动电极停止提供触控扫描信号,执行噪音扫描。 1. A touch scanning method for driving a touch display panel, the touch panel does not substantially include a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrodes, said plurality of common electrode extending direction of the gate line extending in a direction parallel to at least one of the gate line there is an overlap in the width direction, the plurality of common electrode drive electrode multiplexing a touch, the touch scanning method comprising: providing a display signal to the gate scan line, perform display scan; driving electrode provided to the touch touch scanning signal, performing touch scanning; scanned and displayed the touch scan does not overlap the touch occurs simultaneously driving electrode and the gate line; wherein, when performing display scanning to a gate line, all the touch driving electrodes stops supplying touch scanning signal, the scanning performs noise.
2. 如权利要求1所述的触控扫描方法,其特征在于,所述显示扫描具体包括: 向栅极线提供显示扫描信号,向公共电极输入公共电极信号,完成本行显示数据输入之后,停止提供显示扫描信号。 The touch scanning method according to claim 1, wherein said display scanning comprises: providing a scanning signal to the gate line display, the common electrode to the common electrode signal is input, the data input after the completion of display bank, providing a display scanning signal is stopped.
3. 如权利要求1所述的触控扫描方法,其特征在于,所述触控扫描具体包括: 向所述触控驱动电极提供触控扫描信号并检测触控感应电极,以判断是否有触控动作发生。 If there is a touch to the touch drive electrode providing touch scanning signal and detecting the touch sensing electrodes to determine: The touch scanning method according to claim 1, wherein said touch scanning comprises control action occurs.
4. 如权利要求1所述的触控扫描方法,其特征在于,所述噪音扫描具体包括: 不向触控驱动电极提供触控扫描信号,直接检测触控感应电极。 The touch scanning method according to claim 1, wherein said scanning noise comprises: a drive electrode does not touch scan signals to provide detected directly touch the touch sensing electrodes.
5. 如权利要求1所述的触控扫描方法,其特征在于,所述显示扫描方向与所述触控扫描方向相反。 The touch scanning method according to claim 1, wherein said display scanning direction opposite to the scanning direction of the touch.
6. 如权利要求1所述的触控扫描方法,其特征在于,所述噪音扫描与所述显示扫描分时执行。 The touch scanning method according to claim 1, wherein said display scanning with the scanning noise sharing executive. _ _
7. 如权利要求1所述的触控扫描方法,其特征在于,所述显示扫描与所述触控扫描分时执行。 The touch scanning method according to claim 1, wherein said display scanning performed with the touch scan sharing.
8. 如权利要求1所述的触控扫描方法,其特征在于,所述噪音扫描与所述触控扫描分时执行。 The touch scanning method according to claim 1, wherein said scanning with the touch scan noise sharing executive.
9. 一种触控显示面板,包括多条栅极线,多条公共电极,多条触控感应电极,栅极驱动单元,触控驱动单元,所述多条公共电极的延伸方向与所述栅极线延伸方向平行且在宽度方向上至少与一条所述栅极线有交叠,所述多条公共电极复用为触控驱动电极,其中, 所述栅极驱动单元用于向所述栅极线提供显示扫描信号; 所述触控驱动单元用于向所述触控驱动电极提供触控扫描信号或者检测所述触控感应电极的信号; 所述栅极驱动单元和所述触控驱动单元不同时向交叠的栅极线和触控驱动电极提供显示扫描信号和触控扫描信号; 其中,当所述栅极驱动单元给某行栅极线提供显示扫描信号时,触控驱动单元不提供触控扫描信号,而只检测所述触控感应电极的信号。 A touch display panel, comprising a plurality of gate lines, a plurality of common electrodes, a plurality of touch sensing electrodes, a gate driving unit driving the touch unit, the plurality of common electrodes extending in the direction of the gate line extending in a direction parallel to at least one of the gate line there is an overlap in the width direction, the plurality of multiplexed into a common electrode touch driving electrodes, wherein the gate driving unit for supplying the providing a display gate line scan signal; a driving unit for driving the touch of the touch electrode to provide a touch scanning signal or the detection signal of the touch sensing electrodes; the gate driving unit and the touch providing a display driving unit are not simultaneously touch scan signal and a scan signal to the gate line and overlapping the touch drive electrode; wherein, when the gate driving unit provides a scan signal to the display gate line, the touch driving unit does not provide a touch scanning signal, but only the detection signal of the touch sensing electrodes.
10. 如权利要求9所述的触控显示面板,其特征在于,所述触控显示面板的触控驱动电极的延伸方向和所述触控感应电极的延伸方向互相垂直。 The touch as claimed in claim 9, said display panel, wherein the extending direction of the touch display panel of the touch drive electrode and the touch sensing electrodes perpendicular to each other.
11. 如权利要求9所述的触控显示面板,其特征在于,所述栅极驱动单元按时分方式向所述栅极线提供显示扫描信号,所述触控驱动电路按时分方式向所述触控驱动电极提供触控扫描信号或者检测所述触控感应电极的信号。 The touch of the driving circuit 9, the time division manner to display panel of claim, wherein the gate driving unit in a time division manner provides a display scanning signal to the gate lines, the touch the touch drive electrode scanning signal or to provide a touch detection signal of the touch sensing electrodes.
12. 如权利要求9所述的触控显示面板,其特征在于,所述触控显示面板还包括相对设置的第一基板和第二基板,其中,所述触控感应电极设置于所述第一基板或所述第二基板的外侧表面,所述触控驱动电极设置于所述第一基板或所述第二基板的内侧表面。 Claim 12. The touch display panel of claim 9, wherein the touch display panel further includes a first substrate and a second substrate disposed opposite, wherein the touch sensing electrodes disposed on the first the outer surface of a substrate or the second substrate, the touch driving electrode disposed on the inner surface of the first substrate or the second substrate.
13. —种显示装置,其特征在于,包括如权利要求9〜12任一项所述的触控显示面板。 13. - kind of display device, characterized by comprising any of claims 9~12 as one of the touch display panel.
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