WO2016123990A1 - 触摸屏和触控位置的确定方法 - Google Patents

触摸屏和触控位置的确定方法 Download PDF

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Publication number
WO2016123990A1
WO2016123990A1 PCT/CN2015/090498 CN2015090498W WO2016123990A1 WO 2016123990 A1 WO2016123990 A1 WO 2016123990A1 CN 2015090498 W CN2015090498 W CN 2015090498W WO 2016123990 A1 WO2016123990 A1 WO 2016123990A1
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Prior art keywords
touch
electrode
touch screen
line
disposed
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PCT/CN2015/090498
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English (en)
French (fr)
Inventor
丁小梁
王海生
刘英明
杨盛际
任涛
刘伟
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/325,245 priority Critical patent/US9811208B2/en
Publication of WO2016123990A1 publication Critical patent/WO2016123990A1/zh

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    • 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
    • G—PHYSICS
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    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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    • 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
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    • 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
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    • 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
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    • 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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • 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
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    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
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    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • the present disclosure relates to the field of liquid crystal display technologies, and in particular, to a method for determining a touch screen and a touch position.
  • the self-capacitive touch screen Since the self-capacitive touch screen has a large signal amount and strong anti-noise capability, most of the current self-capacitance methods are used to implement In Cell (the function of embedding the touch panel into the liquid crystal pixel). However, the number of electrodes in a self-capacitive touch screen is very large. Taking a pitch of 5 mm ⁇ 5 mm as an example, a 5-inch liquid crystal display (LCD) requires 264 electrode pads (Pad), and each electrode block requires an integrated circuit using a wire to be connected to a display driver. Inside (Integrated Circuit, IC), the number of leads is large. If the pitch design is smaller to achieve more accurate touch, more leads need to be taken out separately, and the border design of the touch screen is bound to be constrained, and it is difficult to implement a narrow bezel design.
  • LCD liquid crystal display
  • Pad 264 electrode pads
  • each electrode block requires an integrated circuit using a wire to be connected to a display driver.
  • IC Integrated Circuit
  • the prior art adopts a self-capacitive touch screen to realize the In Cell technology, and each electrode block needs to be separately led out, and the number of leads is large, and the frame of the touch screen is bound to be constrained, which is not conducive to achieving a narrow bezel design.
  • Embodiments of the present disclosure provide a method for determining a touch screen and a touch position, which is used to reduce the number of leads of the touch screen and realize a narrow bezel design.
  • a touch screen provided by the embodiment of the present disclosure includes: a plurality of first touch electrodes, and a plurality of horizontal scan lines, each of the horizontal scan lines connecting the first touch electrodes on the same row.
  • the number of leads drawn by the touch screen is reduced by connecting the first touch electrodes on the same row through each of the horizontal scan lines, and the electrode lines are separately drawn from each electrode block in the prior art.
  • reducing the number of leads that the touch screen needs to lead out makes it easy to implement a narrow bezel design.
  • the horizontal scan lines of two adjacent rows are respectively taken out from different directions.
  • the horizontal scan lines of two adjacent rows are respectively taken out from different directions, for example, the left side of the touch screen and the right side of the touch screen, thereby reducing the number of leads at each frame of the touch screen, and further Reduce the border width of the touch screen.
  • the touch screen further includes a second touch electrode and a longitudinal scan line connected to the second touch electrode, wherein the first touch electrode and the first touch electrode The two touch electrodes are arranged at intervals in the column direction.
  • the first touch electrode is a bulk electrode, a column of first touch electrodes including a plurality of block electrodes, and the second The touch electrodes are strip electrodes, and one column includes a second touch electrode of a strip electrode.
  • the length of the first touch electrode is equal to a unit pitch
  • the width of the first touch electrode is equal to half of a unit pitch
  • the width of the second touch electrode is equal to the width of the first touch electrode.
  • the width of the first touch electrode is set to be half of the unit pitch, it is possible to detect smaller finger detection and achieve more accurate touch positioning while the second touch electrode It is a strip electrode, which is beneficial to improve the linearity of touch detection.
  • the adjacent two rows of second touch electrodes are connected to the same vertical scan line, and the second column of the same touch electrode is connected to only one longitudinal scan line.
  • the same vertical scanning line is connected by two adjacent second touch electrodes, thereby further reducing the number of scanning lines that need to be extracted, and the narrow bezel design is easy to implement.
  • the first touch electrode and the second touch electrode are both disposed on the common electrode layer.
  • the first touch electrode and the second touch electrode are both disposed on the color filter substrate.
  • the first touch electrode is disposed on the common electrode layer, and the second touch electrode is disposed on the color filter substrate; or The first touch electrode is disposed on the color filter substrate, and the second touch electrode is disposed on the common electrode layer.
  • the common electrode layer is multiplexed.
  • the touch screen provided by the embodiment of the present disclosure further includes: an electrode line corresponding to the first touch electrodes of each column, wherein the electrode lines corresponding to the first touch electrodes of any one of the columns
  • the first sub-electrode line and the second sub-electrode line are respectively disposed on the two sides of the first touch electrode in the column direction, in the touch
  • the mutual capacitance is formed with the first touch electrode.
  • the electrode line when the multi-touch is performed, the electrode line forms a mutual capacitance with the first touch electrode, and the electrode line is used to initially determine the lateral coordinate of the touch position, thereby determining Multi-touch touch position eliminates ghost points.
  • the electrode line is disposed on the color filter substrate.
  • the electrode line is disposed on the source and drain layers and is in the same direction as the source drain line.
  • a method for determining a touch position includes: sequentially applying a driving signal to a horizontal scanning line, and determining that the signal received by the horizontal scanning line meets the first preset condition Determining, the ordinate of the horizontal scan line is the ordinate of the touch position; and when determining that the electrode line receives the sensing signal, initially determining that the abscissa corresponding to the electrode line is the abscissa of the touch position; Applying a driving signal to the vertical scanning line, and determining that the horizontal coordinate corresponding to the vertical scanning line is the abscissa of the touch position when determining that the signal received by the vertical scanning line satisfies the second preset condition; according to the touch position
  • the abscissa, the ordinate of the touch position, and the abscissa of the initially determined touch position determine the touch position.
  • the horizontal scanning lines and the electrode lines are synchronously received.
  • the ordinate of the touch position is determined according to the signal received by the horizontal scan line, and the abscissa of the touch position is initially determined according to the sensing signal received by the electrode line.
  • a driving signal is sequentially applied to the vertical scanning line, and the abscissa of the touch position is determined according to the signal received by the vertical scanning line, and the abscissa, the ordinate and the initially determined abscissa according to the touch position. Determine the touch location.
  • the mutual capacitance is formed between the electrode line and the first touch electrode, and the abscissa of the touch position is initially determined, thereby eliminating ghost points in multi-touch. Moreover, when the mutual capacitance detection is added, there is no increase in the detection time caused by the self-capacitance and mutual capacitance sequential detection. Compared with the prior art self-commutation integrated touch screen, the self-capacitance detection is performed first, and the mutual capacitance detection is performed. The capacitance detection is synchronized with the self-capacitance detection, which reduces the detection time of the touch position.
  • the first preset condition includes: a delay time of the signal received by the horizontal scan line is greater than a first preset threshold, The value of the signal received by the horizontal scan line is smaller than the second preset threshold; the second preset condition includes: the delay time of the signal received by the vertical scan line is greater than a third preset threshold, the vertical The value of the signal received by the scan line is less than the fourth preset threshold.
  • FIG. 1 is a schematic structural diagram of a touch screen according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a method for determining a touch position according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a method for determining a touch position according to an embodiment of the present disclosure.
  • a touch screen provided by the embodiment of the present disclosure includes: a plurality of touch electrodes, and a plurality of horizontal scan lines, each of the horizontal scan lines connecting the touch electrodes on the same row.
  • the touch electrodes on the same row are connected by each horizontal scan line, thereby reducing the number of leads that the touch screen needs to lead.
  • each electrode block needs to be separately drawn out of the electrode line, and the number of leads led out by the touch screen is reduced, and the narrow frame design is easy to implement.
  • the horizontal scan lines of two adjacent rows are respectively taken out from different directions.
  • the horizontal scan lines of two adjacent rows are respectively taken out from different directions, for example, the left side of the touch screen and the right side of the touch screen, thereby reducing the number of leads at each frame of the touch screen, and further reducing the border width of the touch screen.
  • the touch electrode is a first touch electrode
  • the touch screen further includes a second touch electrode and is connected to the second touch electrode.
  • first touch electrode and the second touch electrode may both be block electrodes, but in order to further save the lead, as a preferred embodiment, the first touch electrode is a block electrode, and one column includes multiple a first touch electrode of the block electrode, and the length of the first touch electrode is equal to a unit pitch, the width of the first touch electrode is equal to half of the unit pitch; the second touch electrode is a strip electrode, and the column includes a second touch electrode of a strip electrode.
  • the second touch electrode is a strip electrode, which is beneficial to improve the linearity of the touch detection.
  • the width of the second touch electrode is equal to the width of the first touch electrode, and is equal to half of the unit pitch, and the second touch electrode is not connected to the horizontal scan line.
  • the pitch is a linear distance from the center point of the adjacent touch electrodes.
  • the pitch is 5 mm ⁇ 5 mm
  • the unit pitch is 5 mm.
  • the length of the first touch electrode is 5 mm
  • the width is 2.5 mm
  • the width of the second touch electrode is It is 2.5mm.
  • two adjacent rows of second touch electrodes are connected to the same vertical scan line, and the same column of second touch electrodes is connected to only one longitudinal scan line.
  • each column of the second touch electrodes may also be connected to a vertical scan line.
  • the touch screen provided by the embodiment of the present disclosure includes: a first touch electrode 102 of a block electrode, a second touch electrode 104 of a strip electrode, and a first touch connected to the same line.
  • the horizontal scanning line of the electrode 102 is connected to the longitudinal scanning line of the adjacent second touch electrode.
  • the horizontal scan lines are connected to the first touch electrodes on the same row.
  • the horizontal scan line TX1H is laterally connected to the first touch electrode 102 on the first row
  • the horizontal scan line TX2H is laterally connected to the first touch electrode 102 on the second row
  • the horizontal scan line TX3H is laterally connected to the third row.
  • the first touch electrode 102 The first touch electrode 102; the horizontal scan line TX4H is laterally connected to the first touch electrode 102 on the fourth row; the horizontal scan line TX5H is laterally connected to the first touch electrode 102 on the fifth row; and the horizontal scan line TX6H is laterally connected.
  • Six lines The first touch electrode 102 is on. And TX1H, TX3H and TX5H are taken out from the left side of the touch screen, and TX2H, TX4H and TX6H are taken out from the right side of the touch screen to reduce the number of leads on each side of the touch screen, and it is easy to realize a narrow bezel design.
  • the vertical scan line connects the second touch electrodes of the adjacent two columns, and the second touch electrodes of the same column are connected to only one longitudinal scan line.
  • the vertical scan line TX1V is connected to the second touch electrodes of the adjacent two columns
  • the vertical scan line TX2V is connected to the second touch electrodes of the adjacent two columns
  • the second touch electrodes of each column are only connected with one longitudinal scan line. connection.
  • the setting positions of the first touch electrode and the second touch electrode are as follows:
  • Embodiment 1 The first touch electrode and the second touch electrode are both disposed on the common electrode layer.
  • the first touch electrode and the second touch electrode may multiplex the common electrode layer, and the common electrode layer is cut into the structure shown in FIG. 1 , and the first touch electrode is laterally connected by the horizontal scan line, and the horizontal scan line is It can be a gate layer metal.
  • the first touch electrode and the second touch electrode are disposed on the color filter substrate.
  • the first touch electrode and the second touch electrode are formed into a metal mesh on the color filter substrate, and the first touch electrode and the second touch electrode are shielded by using a black matrix (BM).
  • BM black matrix
  • Embodiment 3 The first touch electrode multiplexes the common electrode layer and is disposed on the common electrode layer, and the second touch electrode is disposed on the color filter substrate.
  • the first touch electrode is disposed on the color filter substrate, and the second touch electrode is multiplexed on the common electrode layer and disposed on the common electrode layer.
  • the touch screen provided by the embodiment of the present disclosure further includes: an electrode line corresponding to each column of the first touch electrodes.
  • the electrode line corresponding to the first touch electrode of any one of the columns includes a first sub-electrode line and a second sub-electrode line connected to each other, and the first sub-electrode line and the second sub-electrode line are respectively disposed along the column direction at the first touch
  • the two sides of the control electrode form a mutual capacitance with the first touch electrode during touch.
  • the touch screen provided by the embodiment of the present disclosure further includes: electrode lines RX1, RX2, RX3, RX4, and RX5, and the electrode lines are in one-to-one correspondence with each column of the first touch electrodes.
  • Each of the electrode lines includes a first sub-electrode line and a second sub-electrode line connected to each other, and the first sub-electrode line and the second sub-electrode line are respectively disposed on opposite sides of the corresponding first touch electrode in the column direction.
  • the electrode line when the multi-touch is used, the electrode line forms a mutual capacitance with the first touch electrode, and the electrode line is used to initially determine the lateral position of the touch position. Mark to determine the touch position of multi-touch and eliminate ghost points.
  • the ordinate of the touch position is determined by the horizontal scan line
  • the abscissa of the touch position is determined by the vertical scan line.
  • the common detection method is to perform the horizontal scan line and the vertical scan line. Driving and detecting, and then determining the touch position according to the ordinate determined by the horizontal scan line and the abscissa determined by the vertical scan line, but in multi-touch, for example, as shown in FIG.
  • the touch signals can be detected by TX1H, TX6H, TX1V and TX2V, and two possibilities arise when the coordinate arrangement is performed, that is, the area 206 and the area 208 shown in FIG. 2 are also a possibility. Since the actual touch position is the area 202 and the area 204, the area 206 and the area 208 determined by the coordinate arrangement combination are ghost points.
  • the touch position is the area 202 and the area 204, and sequentially applies driving signals to the horizontal scanning lines.
  • the driving signal is applied to the horizontal scanning line TX1H
  • the TX1H detects the touch signal, and determines that the ordinate of the touch position is the ordinate corresponding to TX1H.
  • the abscissa of the touch position can be initially determined (ie, the area 208 in FIG. 2 is excluded). The touch position shown).
  • the TX6H detects the touch signal, and determines that the ordinate of the touch position is the ordinate corresponding to TX6H.
  • the touch area 204, the RX5 electrode line and the first touch The control electrode forms a mutual capacitance, and the RX5 electrode line can also receive the sensing data, and the abscissa of the touch position can be initially determined (that is, the touch position indicated by the area 206 in FIG. 2 is excluded), and then sequentially applied to the vertical scanning line.
  • the drive signal precisely locates the abscissa of the touch position.
  • TX1H, TX6H, TX1V, and TX2V can detect the touch signal, there are two combinations when performing coordinate combination, that is, the area 202 and the area 204, the area 206, and the area 208, but according to the electrode line
  • the abscissa of the initially determined touch location has excluded the combination of region 206 and region 208. Therefore, the final determined touch positions are the area 202 and the area 204, eliminating ghost points.
  • the electrode lines are disposed on the color filter substrate, and the width can be made to be the same as the black matrix (BM) width or smaller than the BM width.
  • the electrode lines are disposed on the source and drain layers and are in the same direction as the source and drain lines.
  • a touch screen is provided in the embodiment of the present disclosure.
  • the touch screen provided in the embodiment of the present disclosure includes:
  • Step 302 sequentially applying a driving signal to the horizontal scanning line.
  • Step 304 sequentially applying a driving signal to the vertical scanning line.
  • Step 306 Determine the touch position according to the abscissa of the touch position, the ordinate of the touch position, and the abscissa of the initially determined touch position.
  • the horizontal scanning line and the electrode line are synchronously received.
  • the ordinate of the touch position is determined according to the signal received by the horizontal scan line, and the abscissa of the touch position is initially determined according to the sensing signal received by the electrode line.
  • a driving signal is sequentially applied to the vertical scanning line, the abscissa of the touch position is determined according to the signal received by the vertical scanning line, and the touch position is determined according to the abscissa, the ordinate of the touch position, and the initially determined abscissa.
  • the mutual capacitance is formed between the electrode line and the first touch electrode, and the abscissa of the touch position is initially determined, thereby eliminating ghost points in multi-touch. Moreover, when the mutual capacitance detection is added, there is no increase in the detection time caused by the self-capacitance and mutual capacitance sequential detection. Compared with the prior art self-commutation integrated touch screen, the self-capacitance detection is performed first, and the mutual capacitance detection is performed. The capacitance detection is synchronized with the self-capacitance detection, which reduces the detection time of the touch position.
  • the first preset condition includes: a delay time of a signal received by the horizontal scan line is greater than a first preset threshold, The value of the signal received by the horizontal scan line is less than a second preset threshold; the second preset condition, The method includes: the delay time of the signal received by the vertical scan line is greater than a third preset threshold, and the value of the signal received by the vertical scan line is less than a fourth preset threshold.
  • the horizontal scanning line and the vertical scanning line apply driving signals to determine the coordinates of the touch position in the prior art manner, and are not specifically limited herein.
  • the setting of the first preset threshold and the third preset threshold may adopt a system default value, for example, the first preset threshold may be 1 millisecond, and the second preset threshold and the fourth preset threshold may be set according to the application of the driving signal.
  • the size setting or adopting the system default value, for example, the third preset threshold may be 1 mA.
  • the embodiment of the present disclosure provides a method for determining a touch screen and a touch position, and connecting the touch electrodes of the same row through the horizontal scan lines, reducing the number of leads that the touch screen needs to be led out, and easily designing a narrow bezel;
  • the line forms a mutual capacitance with the first touch electrode, so that in the case of multi-touch, the touch position is accurately determined without eliminating the ghost point without increasing the number of scans.

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Abstract

一种触摸屏和触控位置的确定方法。所述触摸屏包括：多个第一触控电极（102）、以及多条横向扫描线，每一横向扫描线连接同一行上的第一触控电极（102）。

Description

触摸屏和触控位置的确定方法
相关申请的交叉引用
本申请主张在2015年2月2日在中国提交的中国专利申请号No.201510053295.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及液晶显示技术领域，尤其涉及一种触摸屏和触控位置的确定方法。
背景技术
由于自电容式触摸屏的信号量大，抗噪声能力强，因此，目前大多都采用自电容方式实现In Cell(将触控面板功能嵌入到液晶像素中)技术。但是自电容式触摸屏的电极数量非常多。以5mm×5mm的节距(Pitch)为例，5寸的液晶显示器(Liquid Crystal Display，LCD)需要264个电极块(Pad)，且每个电极块均需要使用引线连接至显示驱动器的集成电路(Integrated Circuit，IC)内部，引线数目较多。而如果将节距设计的更小，以实现更精确的触控，则有更多的引线需要单独引出，触摸屏的边框设计必然受到约束，很难实现窄边框设计。
综上所述，现有技术中采用自电容式触摸屏实现In Cell技术，每个电极块均需要单独引出引线，引线数目较多，触摸屏的边框势必受到约束，不利于实现窄边框设计。
发明内容
本公开实施例提供了一种触摸屏和触控位置的确定方法，用以减少触摸屏的引线数目，实现窄边框设计。
本公开实施例提供的一种触摸屏，包括：多个第一触控电极、以及多条横向扫描线，每一横向扫描线连接同一行上的第一触控电极。
本公开实施例提供的上述触摸屏中，通过每一横向扫描线连接同一行上的第一触控电极，减少了触摸屏引出的引线数目，与现有技术中每个电极块均需要单独引出电极线相比，减少触摸屏需要引出的引线数目，易于实现窄边框设计。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，相邻两行的横向扫描线分别从不同方向引出。
本公开实施例提供的上述触摸屏中，通过将相邻两行的横向扫描线分别从不同方向引出，例如：触摸屏的左侧与触摸屏的右侧，从而减少触摸屏每个边框处的引线数目，进一步降低触摸屏的边框宽度。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，该触摸屏还包括第二触控电极以及与第二触控电极相连的纵向扫描线，其中，第一触控电极与第二触控电极在列方向上间隔排列。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述第一触控电极为块状电极，一列包括多个块状电极的第一触控电极；并且所述第二触控电极为条状电极，一列包括一个条状电极的第二触控电极。
在一种可能的实施方式中，所述第一触控电极的长度等于单位节距，所述第一触控电极的宽度等于单位节距的一半。
在一种可能的实施方式中，所述第二触控电极的宽度与所述第一触控电极的宽度相等。
本公开实施例提供的上述触摸屏中，通过将第一触控电极的宽度设置为单位节距的一半，从而能够探测更小的手指探测，实现更精确的触控定位，同时第二触控电极为条状电极，有利于提高触控检测的线性度。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，相邻的两列第二触控电极连接同一纵向扫描线，且同一列第二触控电极仅连接一个纵向扫描线。
本公开实施例提供的上述触摸屏中，通过相邻两列第二触控电极连接同一纵向扫描线，进一步减少需要引出的扫描线的数目，易于实现窄边框设计。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述第一触控电极和所述第二触控电极均设置于公共电极层上。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述第一触控电极和所述第二触控电极均设置于彩膜基板上。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述第一触控电极设置于公共电极层上，所述第二触控电极设置于彩膜基板上；或 者所述第一触控电极设置于彩膜基板上，所述第二触控电极设置于公共电极层上。
在一种可能的实施方式中，当所述第一触控电极、第二触控电极中的任一个设置于公共电极层上时，其复用公共电极层。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，还包括：与每列第一触控电极一一对应的电极线，其中，任一列第一触控电极对应的电极线包括相互连接的第一子电极线和第二子电极线，所述第一子电极线和所述第二子电极线分别沿列方向设置在该第一触控电极的两侧，在触控时与该第一触控电极形成互电容。
本公开实施例提供的上述触摸屏中，通过设置电极线，在多点触控时，该电极线与第一触控电极形成互电容，使用该电极线初步确定触控位置的横向坐标，从而确定多点触控的触控位置，消除鬼点。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述电极线设置于彩膜基板上。
在一种可能的实施方式中，本公开实施例提供的上述触摸屏中，所述电极线设置于源漏极层，且与源漏极线同向。
本公开实施例提供的一种触控位置的确定方法，用于上述实施例提供的触摸屏，包括：依次向横向扫描线施加驱动信号，当确定横向扫描线接收到的信号满足第一预设条件时，确定该横向扫描线对应的纵坐标为触控位置的纵坐标；以及当确定电极线接收到感应信号时，初步确定该电极线对应的横坐标为所述触控位置的横坐标；依次向纵向扫描线施加驱动信号，当确定纵向扫描线接收到的信号满足第二预设条件时，确定该纵向扫描线对应的横坐标为所述触控位置的横坐标；根据所述触控位置的横坐标、所述触控位置的纵坐标以及初步确定的所述触控位置的横坐标确定所述触控位置。
本公开实施例提供的上述方法中，在依次向横向扫描线施加驱动信号时，横向扫描线和电极线同步接收。根据横向扫描线接收到的信号确定触控位置的纵坐标以及根据电极线接收到的感应信号初步确定触控位置的横坐标。然后在依次向纵向扫描线施加驱动信号，根据纵向扫描线接收到的信号确定触控位置的横坐标，并根据触控位置的横坐标、纵坐标以及初步确定的横坐标 确定触控位置。通过电极线与第一触控电极形成互电容，初步确定触控位置的横坐标，从而在多点触控时消除鬼点。而且在加入互电容检测的同时，不存在自电容和互电容顺序检测导致的检测时间增加，与现有技术中自互容一体触摸屏先进行自电容检测再进行互电容检测的方式相比，互电容检测与自电容检测同步进行，减少了触控位置的检测时间。
在一种可能的实施方式中，本公开实施例提供的上述方法中，所述第一预设条件，包括：所述横向扫描线接收到的信号的延时时间大于第一预设阈值、所述横向扫描线接收到的信号的值小于第二预设阈值；所述第二预设条件，包括：所述纵向扫描线接收到的信号的延时时间大于第三预设阈值、所述纵向扫描线接收到的信号的值小于第四预设阈值。
附图说明
图1为本公开实施例提供的一种触摸屏的结构示意图；
图2为本公开实施例提供的触控位置的确定方法的原理示意图；
图3为本公开实施例提供的一种触控位置的确定方法的示意流程图。
具体实施方式
下面结合附图，对本公开实施例提供的一种触摸屏和触控位置的确定方法的具体实施方式进行详细地说明。
本公开实施例提供的一种触摸屏，包括：多个触控电极、以及多条横向扫描线，每一横向扫描线连接同一行上的触控电极。
本公开实施例提供的触摸屏中，通过每一横向扫描线连接同一行上的触控电极，减少了触摸屏需要引出的引线数目。与现有技术中每个电极块均需要单独引出电极线相比，减少触摸屏引出的引线数目，易于实现窄边框设计。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，相邻两行的横向扫描线分别从不同方向引出。
具体实施时，通过将相邻两行的横向扫描线分别从不同方向引出，例如：触摸屏的左侧与触摸屏的右侧，从而减少触摸屏每个边框处的引线数目，进一步降低触摸屏的边框宽度。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，所述触控电极为第一触控电极，该触摸屏还包括第二触控电极以及与第二触控电极相连 的纵向扫描线，其中，第一触控电极与第二触控电极在列方向上间隔排列。
需要说明的是，第一触控电极和第二触控电极可以均为块状电极，但为了进一步的节省引线，作为较为优选的实施例，第一触控电极为块状电极，一列包括多个块状电极的第一触控电极，且第一触控电极的长度等于单位节距，第一触控电极的宽度等于单位节距的一半；第二触控电极为条状电极，一列包括一个条状电极的第二触控电极。
具体实施时，通过将第一触控电极的宽度设置为单位节距的一半，从而能够探测更小的手指触摸，实现更精确的触控定位。同时第二触控电极为条状电极，有利于提高触控检测的线性度。
需要说明的是，具体实施时，第二触控电极的宽度与第一触控电极的宽度相等，均等于单位节距的一半，而且第二触控电极不与横向扫描线相连接。其中，节距为相邻触控电极中心点的直线距离。作为较为具体的实施例，例如：节距为5mm×5mm，单位节距为5mm，则本公开实施例中第一触控电极的长度为5mm，宽度为2.5mm，第二触控电极的宽度为2.5mm。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，相邻的两列第二触控电极连接同一纵向扫描线，且同一列第二触控电极仅连接一个纵向扫描线。
本公开实施例提供的触摸屏中，通过相邻两列第二触控电极连接同一纵向扫描线，进一步减少需要引出的扫描线的数目，易于实现窄边框设计。当然，在本公开的其它实施例中，每一列第二触控电极也可以连接一纵向扫描线。
具体实施时，如图1所示，本公开实施例提供的触摸屏，包括：块状电极的第一触控电极102、条状电极的第二触控电极104、连接同一行上第一触控电极102的横向扫描线、连接相邻第二触控电极的纵向扫描线。其中，横向扫描线连接同一行上的第一触控电极。具体来说：横向扫描线TX1H横向连接第一行上的第一触控电极102；横向扫描线TX2H横向连接第二行上的第一触控电极102；横向扫描线TX3H横向连接第三行上的第一触控电极102；横向扫描线TX4H横向连接第四行上的第一触控电极102；横向扫描线TX5H横向连接第五行上的第一触控电极102；横向扫描线TX6H横向连接第六行 上的第一触控电极102。且TX1H、TX3H和TX5H从触摸屏的左侧引出，TX2H、TX4H和TX6H从触摸屏的右侧引出，以减少触摸屏每一侧的引线数目，易于实现窄边框设计。纵向扫描线连接相邻两列的第二触控电极，且同一列第二触控电极仅连接一个纵向扫描线。具体来说，纵向扫描线TX1V连接相邻两列的第二触控电极，纵向扫描线TX2V连接相邻两列的第二触控电极，且每列第二触控电极仅与一纵向扫描线连接。
第一触控电极和第二触控电极的设置位置有以下四种实施方式：
实施方式一、第一触控电极和第二触控电极均设置于公共电极层上。具体实施时，第一触控电极和第二触控电极可以复用公共电极层，将公共电极层切割为图1所示的结构，第一触控电极用横向扫描线横向连接，横向扫描线可以为栅极层金属。
实施方式二、第一触控电极和第二触控电极均设置于彩膜基板上。第一触控电极和第二触控电极在彩膜基板上制作成金属网格并使用黑矩阵(Black Matrix，BM)对第一触控电极和第二触控电极进行遮挡。
实施方式三、第一触控电极复用公共电极层，设置于公共电极层上，第二触控电极设置于彩膜基板上。
实施方式四、第一触控电极设置于彩膜基板上，第二触控电极复用公共电极层，设置于公共电极层上。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，还包括：与每列第一触控电极一一对应的电极线。其中，任一列第一触控电极对应的电极线包括相互连接的第一子电极线和第二子电极线，第一子电极线和第二子电极线分别沿列方向设置在该第一触控电极的两侧，在触控时与该第一触控电极形成互电容。
具体实施时，如图1所示，本公开实施例提供的触摸屏还包括：电极线RX1、RX2、RX3、RX4和RX5，电极线与每列第一触控电极一一对应。每条电极线包括相互连接的第一子电极线和第二子电极线，且第一子电极线和第二子电极线分别沿列方向设置在对应的第一触控电极的两侧。
本公开实施例提供的触摸屏中，通过设置电极线，在多点触控时，该电极线与第一触控电极形成互电容，使用该电极线初步确定触控位置的横向坐 标，从而确定多点触控的触控位置，消除鬼点。
下面结合图2对多点触控时鬼点的产生以及本公开实施例通过增加电极线消除鬼点的原理进行说明。
具体来说，依据自电容触摸屏的检测原理，由横向扫描线确定触控位置的纵坐标，由纵向扫描线确定触控位置的横坐标，通常的检测方式为对横向扫描线和纵向扫描线进行驱动以及检测，然后根据横向扫描线确定的纵坐标和纵向扫描线确定的横坐标确定触控位置，但是在多点触控时，例如：如图2所示，当触控位置为区域202和区域204时，TX1H、TX6H、TX1V和TX2V均能检测到触控信号，在进行坐标排列组合时就会出现两种可能性，也即图2中示出的区域206和区域208也是一种可能性，由于实际触控位置为区域202和区域204，因此，坐标排列组合确定的区域206和区域208即为鬼点。
而本公开实施例提供的触摸屏，在多点触控时，例如：触控位置为区域202和区域204，依次向横向扫描线施加驱动信号。当向横向扫描线TX1H施加驱动信号时，TX1H检测到触控信号，则确定触控位置的纵坐标为TX1H对应的纵坐标。同时在触控区域202时，由于RX1电极线与第一触控电极形成互电容，则RX1电极线也存在感应数据，则能够初步确定触控位置的横坐标(也即排除图2中区域208所示的触控位置)。同理，当横向扫描线TX6H施加驱动信号时，TX6H检测到触控信号，则确定触控位置的纵坐标为TX6H对应的纵坐标.同时当触控区域204时，RX5电极线与第一触控电极形成互电容，RX5电极线也能接收到感应数据，则能够初步确定触控位置的横坐标(也即排除图2中区域206所示的触控位置)，然后依次向纵向扫描线施加驱动信号，精确定位触控位置的横坐标。当确定触控位置时，虽然TX1H、TX6H、TX1V和TX2V均能检测到触控信号，在进行坐标组合时存在两种组合，即区域202和区域204、区域206和区域208，但是根据电极线初步确定的触控位置的横坐标已排除区域206和区域208的组合。因此，最终确定的触控位置为区域202和区域204，消除鬼点。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，电极线设置于彩膜基板上，宽度可制作与黑矩阵(Black Matrix，BM)宽度一致，或者比BM宽度小。
在一种可能的实施方式中，本公开实施例提供的触摸屏中，电极线设置于源漏极层，且与源漏极线同向。
本公开实施例提供的一种触控位置的确定方法，用于本公开实施例提供的触摸屏，如图3所示，包括：
步骤302，依次向横向扫描线施加驱动信号，当确定横向扫描线接收到的信号满足第一预设条件时，确定该横向扫描线对应的纵坐标为触控位置的纵坐标；以及当确定电极线接收到感应信号时，初步确定该电极线对应的横坐标为触控位置的横坐标；
步骤304，依次向纵向扫描线施加驱动信号，当确定纵向扫描线接收到的信号满足第二预设条件时，确定该纵向扫描线对应的横坐标为触控位置的横坐标；
步骤306，根据触控位置的横坐标、触控位置的纵坐标以及初步确定的触控位置的横坐标确定触控位置。
本公开实施例提供的方法中，在依次向横向扫描线施加驱动信号时，横向扫描线和电极线同步接收。根据横向扫描线接收到的信号确定触控位置的纵坐标以及根据电极线接收到的感应信号初步确定触控位置的横坐标。然后在依次向纵向扫描线施加驱动信号，根据纵向扫描线接收到的信号确定触控位置的横坐标，并根据触控位置的横坐标、纵坐标以及初步确定的横坐标确定触控位置。通过电极线与第一触控电极形成互电容，初步确定触控位置的横坐标，从而在多点触控时消除鬼点。而且在加入互电容检测的同时，不存在自电容和互电容顺序检测导致的检测时间增加，与现有技术中自互容一体触摸屏先进行自电容检测再进行互电容检测的方式相比，互电容检测与自电容检测同步进行，减少了触控位置的检测时间。
值得说明的是，在确定触控位置时，虽然加入互电容检测方式，但是互电容检测与横向扫描线的自电容检测同步进行。因此，不存在自电容和互电容顺序检测导致增加检测时间的问题。
在一种可能的实施方式中，本公开实施例提供的方法中，所述第一预设条件，包括：所述横向扫描线接收到的信号的延时时间大于第一预设阈值、所述横向扫描线接收到的信号的值小于第二预设阈值；所述第二预设条件， 包括：所述纵向扫描线接收到的信号的延时时间大于第三预设阈值、所述纵向扫描线接收到的信号的值小于第四预设阈值。
本领域技术人员应当理解的是，横向扫描线和纵向扫描线施加驱动信号确定触控位置的坐标采用现有技术的方式，此处并不用于具体限定。第一预设阈值和第三预设阈值的设定可以采用系统默认值，例如第一预设阈值可以为1毫秒，第二预设阈值和第四预设阈值的设定可以根据施加驱动信号的大小设定或采用系统默认值，例如第三预设阈值可以为1毫安。
本公开实施例提供了一种触摸屏和触控位置的确定方法，通过横向扫描线连接同一行的触控电极，减少触摸屏需要引出的引线数目，易于实现窄边框设计；通过增加电极线，使得电极线与第一触控电极形成互电容，从而在多点触控时，在不增加扫描次数的情况下，精确确定触控位置同时消除鬼点。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (16)

  1. 一种触摸屏，包括：
    多个第一触控电极，以及
    多条横向扫描线，
    其中，每一横向扫描线连接同一行上的第一触控电极。
  2. 根据权利要求1所述的触摸屏，其中，相邻两行的横向扫描线分别从不同方向引出。
  3. 根据权利要求1所述的触摸屏，其中，该触摸屏还包括第二触控电极以及与第二触控电极相连的纵向扫描线，
    其中，第一触控电极与第二触控电极在列方向上间隔排列。
  4. 根据权利要求3所述的触摸屏，其中，所述第一触控电极为块状电极，一列包括多个块状电极的第一触控电极，并且
    所述第二触控电极为条状电极，一列包括一个条状电极的第二触控电极。
  5. 根据权利要求3所述的触摸屏，其中，相邻的两列第二触控电极连接同一纵向扫描线，且同一列第二触控电极仅连接一个纵向扫描线。
  6. 根据权利要求3所述的触摸屏，其中，所述第一触控电极和所述第二触控电极均设置于公共电极层上。
  7. 根据权利要求3所述的触摸屏，其中，所述第一触控电极和所述第二触控电极均设置于彩膜基板上。
  8. 根据权利要求3所述的触摸屏，其中，所述第一触控电极设置于公共电极层上，所述第二触控电极设置于彩膜基板上；或者
    所述第一触控电极设置于彩膜基板上，所述第二触控电极设置于公共电极层上。
  9. 根据权利要求3-8中任一项所述的触摸屏，还包括：
    与每列第一触控电极一一对应的电极线，其中，
    任一列第一触控电极对应的电极线包括相互连接的第一子电极线和第二子电极线，
    所述第一子电极线和所述第二子电极线分别沿列方向设置在该第一触控 电极的两侧，在触控时与该第一触控电极形成互电容。
  10. 根据权利要求9所述的触摸屏，其中，所述电极线设置于彩膜基板上。
  11. 根据权利要求9所述的触摸屏，其中，所述电极线设置于源漏极层，且与源漏极线同向。
  12. 根据权利要求3所述的触摸屏，其中，所述第一触控电极的长度等于单位节距，所述第一触控电极的宽度等于单位节距的一半。
  13. 根据权利要求3所述的触摸屏，其中，所述第二触控电极的宽度与所述第一触控电极的宽度相等。
  14. 根据权利要求6或8所述的触摸屏，其中，当所述第一触控电极、第二触控电极中的任一个设置于公共电极层上时，其复用公共电极层。
  15. 一种触控位置的确定方法，用于权利要求9-11中任一项所述的触摸屏，其中，所述方法包括：
    依次向横向扫描线施加驱动信号，当确定横向扫描线接收到的信号满足第一预设条件时，确定该横向扫描线对应的纵坐标为触控位置的纵坐标；以及当确定电极线接收到感应信号时，初步确定该电极线对应的横坐标为所述触控位置的横坐标；
    依次向纵向扫描线施加驱动信号，当确定纵向扫描线接收到的信号满足第二预设条件时，确定该纵向扫描线对应的横坐标为所述触控位置的横坐标；
    根据所述触控位置的横坐标、所述触控位置的纵坐标以及初步确定的所述触控位置的横坐标确定所述触控位置。
  16. 根据权利要求15所述的方法，其中，
    所述第一预设条件，包括：所述横向扫描线接收到的信号的延时时间大于第一预设阈值、所述横向扫描线接收到的信号的值小于第二预设阈值；
    所述第二预设条件，包括：所述纵向扫描线接收到的信号的延时时间大于第三预设阈值、所述纵向扫描线接收到的信号的值小于第四预设阈值。
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