WO2016082244A1 - 触控面板以及触控显示装置 - Google Patents

触控面板以及触控显示装置 Download PDF

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Publication number
WO2016082244A1
WO2016082244A1 PCT/CN2014/093268 CN2014093268W WO2016082244A1 WO 2016082244 A1 WO2016082244 A1 WO 2016082244A1 CN 2014093268 W CN2014093268 W CN 2014093268W WO 2016082244 A1 WO2016082244 A1 WO 2016082244A1
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Prior art keywords
touch panel
touch
resistor
electrode array
equal
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PCT/CN2014/093268
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English (en)
French (fr)
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白宇杰
周锦杰
郭星灵
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深圳市华星光电技术有限公司
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Priority to US14/425,616 priority Critical patent/US9626050B2/en
Publication of WO2016082244A1 publication Critical patent/WO2016082244A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • the present invention relates to the field of display, and in particular to a touch panel and a touch display device.
  • the touch screen also known as the touch panel, is an inductive liquid crystal display device that can receive input signals such as finger touches.
  • the tactile feedback system on the screen can be scanned according to a preset driving mode. Determine the position of the touched action, further determine the button of the clicked graphic, and determine the type of the instruction.
  • the touch screen is more convenient than the prior art mechanical button panel, and thus has been widely used.
  • touch screens such as a vector pressure sensing technology touch screen, an infrared technology touch screen, a surface acoustic wave technology touch screen, a resistive technology touch screen, etc.
  • a touch screen of a capacitive technology is commonly used in the prior art.
  • the capacitive touch technology is a touch technology that utilizes a change in capacitance generated when a finger is close to a capacitive touch panel. Includes self-contained touch technology and self-contained touch technology.
  • the horizontal and vertical electrode arrays are formed on the surface of the glass with a transparent conductive material. These lateral and longitudinal electrodes respectively form a capacitance with the ground. This is the so-called self-capacitance.
  • the capacitance of the finger will increase. To the screen capacitor, the screen capacity increases.
  • the self-capacitive touch screen sequentially detects the horizontal and vertical electrode arrays, and further determines the lateral coordinates and the longitudinal coordinates according to the change of the capacitance before and after the touch, and then combines them into planar touch coordinates, as shown in FIG. 1 .
  • the above is the working mode of the self-capacitive touch screen.
  • the mutual capacitance also makes the lateral electrode and the longitudinal electrode on the surface of the glass.
  • the difference from the self-capacitance touch screen is that the capacitance is formed at the intersection of the lateral electrode and the vertical electrode, that is, the two sets of electrodes respectively constitute two stages of the capacitance.
  • the touch screen When the finger touches the touch screen, since the human body is also a conductor, a capacitance is formed with the touch screen, and this capacitance affects the coupling between the two electrodes near the touch point, thereby changing the capacitance between the two electrodes.
  • the lateral electrode When detecting the mutual capacitance, the lateral electrode emits an excitation signal, and all the electrodes in the longitudinal direction receive the signal at the same time, so that the capacitance values of all the intersections of the lateral and longitudinal electrodes can be obtained, and the touch point is determined according to the two-dimensional capacitance variation data of the touch screen. coordinate of.
  • the process of adding voltage to its lateral or vertical direction is also the process of charging its self-capacitance or mutual capacitance, since the capacitance of the touch point has changed, and other capacitors are no longer The same, therefore, generally by charging all the capacitors to a fixed The charging time of the voltage value determines the position of the touch point.
  • the lengths of the wires connecting the electrode arrays to the controller are also different, even if the wires are made of the same material and the same thickness, there is a difference in resistance. .
  • the difference in resistance is not very large, since the touch screen is an extremely precise device, even if there is a small difference, if the controller charges the electrode array, if the wire is too large, it will The influence of the signal voltage on the charging of the capacitor affects the charging time of the capacitor, which further affects the sensing accuracy of the touch screen.
  • the technical problem to be solved by the present invention is to provide a touch panel and a touch display device, which can effectively improve the detection accuracy of the touch screen.
  • a technical solution adopted by the present invention is to provide a touch panel, the touch panel includes: a horizontal electrode array and a vertical electrode array extending in a mutually perpendicular direction, and each of the horizontal electrode arrays and Each of the longitudinal electrode arrays is respectively connected to the controller through a wire, wherein all of the wires are connected in series with a first resistor, and the resistance value of each of the wires is connected to the resistance of the first resistor in series And the equivalent resistance values formed are equal to each other;
  • the first spacing between adjacent arrays of lateral electrodes is equal, and the second spacing between adjacent arrays of longitudinal electrodes is equal;
  • the lateral electrode array and the longitudinal electrode array each include at least two nano indium tin metal oxide ITO electrodes.
  • the first resistor is a chip resistor.
  • the touch panel includes a self-capacitive touch panel and a mutual capacitive touch panel.
  • a technical solution adopted by the present invention is to provide a touch panel, the touch panel includes: a horizontal electrode array and a vertical electrode array extending in a mutually perpendicular direction, and each of the horizontal electrode arrays and Each of the longitudinal electrode arrays is respectively connected to the controller through a wire, wherein all of the wires are connected in series with a first resistor, and the resistance value of each of the wires is connected to the resistance of the first resistor in series And the equivalent resistance values formed are equal to each other.
  • the first spacing between adjacent arrays of lateral electrodes is equal, and the second spacing between adjacent arrays of longitudinal electrodes is equal.
  • the lateral electrode array and the longitudinal electrode array each comprise at least two nano-indium tin metal oxide ITO electrodes.
  • the first resistor is a chip resistor.
  • the touch panel includes a self-capacitive touch panel and a mutual capacitive touch panel.
  • another technical solution adopted by the present invention is to provide a touch display device, where the touch display device includes a touch panel.
  • the touch panel includes a horizontal electrode array and a vertical electrode array extending perpendicular to each other, and each of the horizontal electrode arrays and each of the longitudinal electrode arrays are respectively connected to a controller through a wire, wherein all the wires are A first resistor is connected in series, and an equivalent resistance value formed by a sum of a resistance value of each of the wires and a resistance of the first resistor connected in series is equal to each other.
  • the first spacing between adjacent arrays of lateral electrodes is equal, and the second spacing between adjacent arrays of longitudinal electrodes is equal.
  • the lateral electrode array and the longitudinal electrode array each comprise at least two nano-indium tin metal oxide ITO electrodes.
  • the first resistor is a chip resistor.
  • the touch panel includes a self-capacitive touch panel and a mutual capacitive touch panel.
  • the touch substrate of the present invention comprises a horizontal electrode array and a vertical electrode array which are mutually perpendicular to each other, and each of the horizontal electrode arrays and each of the vertical electrode arrays are connected in series
  • a wire is connected to the controller, and each wire is further connected in series with a first resistor, and the equivalent resistance value formed by the sum of the resistance value of each wire and the resistance of the first resistor connected in series is equal to each other, so that the touch screen is receiving
  • the controller can accurately determine the position of the touch, avoid the problem of inaccurate detection due to the error caused by the difference in the wire resistance value, and effectively improve the detection accuracy of the touch screen.
  • FIG. 1 is a schematic structural diagram of a working principle of a self-contained touch screen of the prior art
  • FIG. 2 is a schematic structural diagram of a working principle of a mutual-capacity touch screen of the prior art
  • FIG. 3 is a schematic structural view of an embodiment of a touch panel of the present invention.
  • FIG. 4 is a schematic diagram of a charging curve of an embodiment of the touch panel of FIG. 3;
  • FIG. 5 is a schematic structural view of an embodiment of a touch display device according to the present invention.
  • FIG. 6 is a schematic structural view of a touch display device of FIG. 5 according to a specific embodiment.
  • FIG. 3 is a schematic structural diagram of an embodiment of a touch panel of the present invention.
  • the touch panel in this embodiment includes a lateral electrode array 301 extending in a mutually perpendicular direction, a longitudinal electrode array 302, and a controller 303, wherein each of the lateral electrode arrays 301 and each of the longitudinal electrode arrays 302 includes at least two
  • the touch electrodes 3011 and 3021, the touch electrodes 3011 and 3021 are nano-indium tin metal oxide ITO electrodes. In other embodiments, other types of electrodes may be used, which are not limited herein.
  • Each of the lateral electrode arrays 301 and each of the longitudinal electrode arrays 302 are connected to the controller via a wire 3012, 3022, respectively.
  • the touch panel in this embodiment is a capacitive touch panel, and includes a self-capacitive touch panel and a mutual-capacitive touch panel.
  • the working principle of the capacitive touch panel is that when the user touches the touch panel, the existing capacitance of the capacitive touch panel is changed, such as the touch electrode 3011 or 3021 in the self-capacitive touch panel and the ground.
  • the touch panel can determine the position of the touch by detecting the position coordinates of the touch electrodes whose capacitance changes due to the user's finger touch.
  • the position of the touch point is determined by measuring the time when all the touch electrodes 3011 and 3021 are charged to a rated voltage value. Taking the self-capacitive touch panel as an example, it is assumed that the touch electrodes 3011 and 3021 are performed.
  • the charging voltage for charging is Vin.
  • the rated voltage value to be charged for all capacitors is Vout, the self-capacitance value formed by each ground is C, and the equivalent resistance of the wire is R.
  • Vout Vin(1-e -t/RC ) with the charging time t shows that as long as the rated charging voltage Vin is guaranteed, the equivalent resistance R of all the wires 3012 and 3022 is equal, and the accommodation C of all the capacitors can be accurately determined.
  • the time of charging that is, the location of the touch point.
  • the resistance of each of the wires 3012, 3022 is measured first.
  • the length of the wire from the electrodes 3011, 3021 to the controller 303, S is the cross-sectional area of the wire.
  • the wires connecting the lateral touch electrodes and the vertical touch electrodes are of the same material, and the wires of the same thickness can directly know the resistance of each wire by measuring the length of the wires, thereby simplifying the measurement process.
  • wires having different materials and wire thicknesses may be used as long as the equivalent resistances and the like are equal to each other, and are not limited herein.
  • the equivalent resistance value of all the wires 3012, 3022 is determined, and the series connection is determined according to the difference between the equivalent resistance value and the self-resistance value of each wire 3012 or 3022.
  • the resistance of a resistor 304 For example, if the equivalent resistance value is 100 ohms, and the resistance value of the first wire is 98 ohms, and the resistance value of the second wire is 99 ohms, the resistance of the first resistor corresponding to the first wire is 2 ohms, and the second wire The resistance of the corresponding first resistor is 1 ohm.
  • the controller 303 scans all the touch electrodes 3011 and 3021, and the charging voltage is formed by the wire and the first resistor for each of the touch electrodes 3011 and 3021.
  • the mutual capacitance or self capacitance is charged to a rated voltage, and since the equivalent resistance values of each of the resistors are equal to each other, when the controller charges all of the lateral electrode array 301 and the vertical electrode array 302, all the wires
  • the partial pressures are equal, and have any influence on the charging time of the mutual capacitance or the self-capacitance formed by the touch electrodes 3011 and 3021. Further, by measuring each charging time, the position of the touched point can be accurately determined. Improve the display accuracy of the touch panel.
  • the horizontal axis represents the charging time of the capacitor
  • the vertical axis represents the charging voltage.
  • the capacitance value of the self-capacitance or the mutual capacitance of the touch panel is increased as an example, and the solid line indicates The charging time curve before being touched, the dotted line indicates the charging curve after the touch point is touched.
  • the charging time before the touch is t1
  • touch The charging time t2 after the point is touched the charging time also changes due to the increase in the capacitance value after the touch.
  • the capacitance values are equal, and the corresponding charging time t1 is also equal, then the touch point corresponding to the self-capacitance or mutual capacitance of the charging time t2 is the position touched this time. .
  • the first resistor connected in series on each of the wires is a chip resistor.
  • the first resistor may also be other types of resistors, which are not limited herein.
  • the first spacing between the adjacent lateral electrode arrays 301 is equal, and between the adjacent longitudinal electrode arrays 302
  • the second spacing is equal.
  • other settings may be made for the first pitch and the second pitch as needed, and are not limited herein.
  • the touch substrate of the present invention comprises a horizontal electrode array and a vertical electrode array perpendicular to each other in a mutually extending direction, and each of the horizontal electrode arrays and each of the longitudinal electrode arrays are respectively connected to the controller through a series of wires, each of which is connected A first resistor is also connected in series on the wire, and each wire has its own electricity
  • the equivalent resistance value formed by the sum of the resistance values of the first resistors connected in series with each other is equal to each other, so that when the touch screen receives the touch action, the controller can accurately determine the position of the touch, thereby avoiding the difference in the resistance value of the wires.
  • the error caused by the error is caused by the error, and the detection accuracy of the touch screen is effectively improved.
  • FIG. 5 is a schematic structural diagram of an embodiment of a touch display device according to the present invention.
  • the touch display panel of the present embodiment includes a touch panel 501 and a liquid crystal component 502.
  • the liquid crystal component includes a first substrate 5021, a second substrate 5023, and liquid crystal molecules 5022 disposed between the first substrate 5021 and the second substrate 5023.
  • the relationship between the touch panel 501 and the liquid crystal module 502 in FIG. 5 is only a relative relationship. According to different types of the capacitive touch display device, the position relationship is different, and the above relationship is only an example and is not a limitation.
  • FIG. 6 is a schematic structural diagram of a specific embodiment of a touch display device.
  • the touch display device includes a touch panel 601.
  • the touch panel 601 includes a horizontal electrode array 6011 and a vertical electrode array 6012 extending perpendicular to each other.
  • the first substrate 602 of the liquid crystal assembly includes a controller 6021.
  • Each of the horizontal electrode arrays 6011 and the vertical electrode arrays 6012 includes at least two touch electrodes 60111 and 60121, and the touch electrodes 60111 and 60121 are nano-indium tin metal oxide ITO electrodes. In other embodiments, It can be other types of electrodes, and is not limited herein.
  • Each of the lateral electrode arrays 6011 and each of the longitudinal electrode arrays 6021 are connected to the controller 6021 via a wire 60112, 60122, respectively.
  • the touch panel 601 in the embodiment is a capacitive touch panel, and includes a self-capacitive touch panel and a mutual-capacitive touch panel.
  • the working principle of the capacitive touch panel is that when the user touches the touch panel, the existing capacitance of the capacitive touch panel is changed, such as the touch electrode 60111 or 60121 and the ground in the self-capacitive touch panel.
  • the touch panel can determine the position of the touch by detecting the position coordinates of the touch electrodes whose capacitance changes due to the user's finger touch.
  • the position of the touch point is determined by measuring the time when all the touch electrodes 60121 and 60121 are charged to a rated voltage value.
  • a rated voltage value Vin.
  • the rated voltage value to be charged for all capacitors is Vout, the self-capacitance value formed by each ground is C, and the equivalent resistance of the wire is R.
  • Vout Vin(1-e -t/RC ) of the charging time t that as long as the rated charging voltage Vin is ensured, the equivalent resistances R of all the wires 60112 and 60122 are equal, and the accommodation C of all the capacitors can be accurately determined.
  • the time of charging that is, the location of the touch point.
  • the resistance of each of the wires 60112 and 60122 is measured first.
  • the length of the wire from the electrodes 60111, 60121 to the controller 6021, S is the cross-sectional area of the wire.
  • the wires connecting the lateral touch electrodes and the vertical touch electrodes are of the same material, and the wires of the same thickness can directly know the resistance of each wire by measuring the length of the wires, thereby simplifying the measurement process.
  • wires having different materials and wire thicknesses may be used as long as the equivalent resistances and the like are equal to each other, and are not limited herein.
  • the equivalent resistance values of all the wires 60112 and 60122 are determined, and the series connection is determined according to the difference between the equivalent resistance value and the self-resistance value of each of the wires 60112 or 60122.
  • the controller 6021 scans all the touch electrodes 60111 and 60121, and the charging voltage is formed by the wire and the first resistor for each of the touch electrodes 60111 and 60121.
  • the mutual capacitance or self capacitance is charged to a rated voltage, and since the equivalent resistance values of each of the resistors are equal to each other, when the controller charges all of the lateral electrode array 6011 and the vertical electrode array 6012, all the wires
  • the partial pressures are equal, and have any influence on the charging time of the mutual capacitance or the self-capacitance formed by the touch electrodes 60111 and 60121. Further, by measuring each charging time, the position of the touched point can be accurately determined. Improve the display accuracy of the touch panel.
  • the first resistor connected in series on each of the wires is a chip resistor.
  • the first resistor may also be other types of resistors, which are not limited herein.
  • the first spacing between the adjacent lateral electrode arrays 6011 is equal, and between the adjacent longitudinal electrode arrays 6012.
  • the second spacing is equal. In other embodiments, it may also be Other settings are made for the first pitch and the second pitch, and no limitation is imposed here.
  • the touch display device of the present invention includes a touch panel including a horizontal electrode array and a vertical electrode array perpendicular to each other in a mutually extending direction, and each of the horizontal electrode arrays and each of the longitudinal electrode arrays are connected in series
  • a wire is connected to the controller, and each wire is further connected in series with a first resistor, and the equivalent resistance value formed by the sum of the resistance value of each wire and the resistance of the first resistor connected in series is equal to each other, so that the touch screen is receiving
  • the controller can accurately determine the position of the touch, avoid the problem of inaccurate detection due to the error caused by the difference in the wire resistance value, and effectively improve the detection accuracy of the touch screen.

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  • General Engineering & Computer Science (AREA)
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Abstract

一种触控面板以及触控显示装置，所述触控面板包括：延伸方向互相垂直的横向电极阵列（301）和纵向电极阵列（302），每条所述横向电极阵列（301）和每条所述纵向电极阵列（302）分别通过一条导线（3012、3022）与控制器（303）连接，其中，所有的所述导线（3012、3022）均串联一个第一电阻（304），每条所述导线（3012、3022）的自身电阻值与其所串联的所述第一电阻（304）的阻值的和所构成的等效电阻值彼此相等。通过上述方式，能够避免由于导线电阻值不同而带来的误差，而造成检测不准的问题，有效提高触摸屏的检测精度。

Description

触控面板以及触控显示装置 技术领域
本发明涉及显示领域，特别是涉及一种触控面板以及触控显示装置。
背景技术
触摸屏又称触控面板，是个可接收触头如手指触摸等输入讯号的感应式液晶显示装置，当接触了屏幕上的图形按钮时，屏幕上的触觉反馈系统可根据预先设定的驱动扫描方式，确定触摸的动作的位置，进一步确定点击的图形的按钮，确定指令类型。相较于现有技术机械式的按钮面板，触摸屏更加方便，因此得到了广泛的应用。
常用的触摸屏有很多，如矢量压力传感技术触摸屏、红外线技术触摸屏、表面声波技术触摸屏、电阻技术触摸屏等等，但是现有技术中比较常用的为电容技术的触摸屏。
电容触控技术是利用手指近接电容触控面板时所产生电容变化的触控技术。包括自容式触摸技术和自容式触摸技术。在玻璃表面用透明的导电材料制成横向和纵向电极阵列，这些横向和纵向的电极分别与地构成电容，这个就是通常所说的自电容，当手指触摸到触摸屏时，手指的电容将会增加到屏体电容上，使屏体电容量增加。自容式触摸屏依次分别检测横向和纵向电极阵列，根据触摸前后电容的变化，进一步确定横向坐标和纵向坐标，然后组合成平面的触摸坐标，如图1所示。上述为自电容触摸屏的工作方式。互电容也是在玻璃表面制作横向电极和纵向电极，与自电容触摸屏的区别在于，其电容是在横向电极和纵线电极交叉的地方形成，也即这两组电极分别构成了电容的两级。当手指触摸到触摸屏时，由于人体也是导体，与触摸屏会形成一个电容，而这个电容会影响触摸点附近的两个电极之间的耦合，从而改变了这两个电极之间的电容量。检测互电容大小时，横向的电极发出激励信号，纵向的所有电极同时接收信号，这样，可以得到所有横向和纵向电极交汇点的电容值的大小，根据触摸屏二维电容变化量数据，确定触摸点的坐标。
无论是自容式触摸屏或互容式触摸屏，对其横向或纵向添加电压进行扫描的过程也是对其自电容或者互电容充电的过程，由于触摸点的电容已经发生变化，和其他的电容不再一样，因此，一般通过将所有的电容充电到一个固定的 电压值的充电时间来确定触摸点的位置。
然而，由于横向或纵向的电极阵列到控制器的距离并不相等，因而连接电极阵列到控制器的导线的长度也不相同，即使导线使用同等材质、相同粗细的导线也会存在电阻大小的差异。虽然，这种电阻差异并不是很大，但是由于触摸屏是一种极其精密的设备，因此，即使一个小小的差异，在控制器对电极阵列进行充电时，如果导线分压过大，也会影响对电容充电的信号电压的大小，影响对电容充电的时间，进一步影响了触控屏的感应精度。
发明内容
本发明主要解决的技术问题是提供一种触控面板以及触控显示装置，能够有效提高触摸屏的检测精度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种触控面板，所述触控面板包括：延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等；
相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等；
所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
其中，所述第一电阻均为贴片式电阻。
其中，所述触控面板包括自容式触控面板和互容式触控面板。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种触控面板，所述触控面板包括：延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等。
其中，相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等。
其中，所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
其中，所述第一电阻均为贴片式电阻。
其中，所述触控面板包括自容式触控面板和互容式触控面板。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种触控显示装置，所述触控显示装置包括触控面板，
所述触控面板包括延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等。
其中，相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等。
其中，所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
其中，所述第一电阻均为贴片式电阻。
其中，所述触控面板包括自容式触控面板和互容式触控面板。
本发明的有益效果是：区别于现有技术的情况，本发明的触控基板包括相互延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条横向电极阵列和每条纵向电极阵列分别通过串联一条导线与控制器连接，每条导线上还串联一个第一电阻，每条导线的自身电阻值与其串联的第一电阻的阻值的和所构成的等效电阻值彼此相等，使触摸屏在接收到触碰动作时，控制器能准确确定触碰的位置，避免由于导线电阻值不同而带来的误差而造成检测不准的问题，有效提高触摸屏的检测精度。
附图说明
图1是现有技术自容式触摸屏工作原理结构示意图；
图2是现有技术互容式触摸屏工作原理结构示意图；
图3是本发明触控面板一实施方式的结构示意图；
图4是图3中触控面板一实施方式的充电曲线示意图；
图5是本发明触控显示装置一实施方式的结构示意图；
图6是图5触控显示装置一具体实施方式的结构示意图。
具体实施方式
参阅图3，图3是本发明触控面板一实施方式的结构示意图。本实施方式中的触控面板包括延伸方向相互垂直的横向电极阵列301、纵向电极阵列302，以及控制器303，其中，每条横向电极阵列301和每条纵向电极阵列302上分别包括至少两个触控电极3011以及3021，所述触控电极3011以及3021为纳米铟锡金属氧化物ITO电极，在其他实施方式中，也可以为其他类型电极，在此不做限定。每条横向电极阵列301和每条纵向电极阵列302分别通过一条导线3012、3022与控制器连接。进一步地如图3所示，为了保证连接触控电极3011以及触控电极3021的导线3012以及导线3022的等效电阻值彼此相等，所有的导线3012以及3022均串联一个与其自身电阻值相对应的第一电阻304。
具体地，本实施方式中的触控面板为电容式触控面板，包括自容式触控面板以及互容式触控面板。电容式触控面板的工作原理在于当用户触碰到触控面板时，会改变电容式触控面板的现有的电容，如自容式触控面板中的触控电极3011或3021与地构成的自电容，互容式触控面板中的横向电极阵列301和纵向电极阵列302交叉处的横向的触控电极3011和纵向的触控电极3021相互形成的互电容。通过检测由于用户手指触摸而发生电容量发生改变的触控电极的位置坐标，触控面板便可确定触摸的位置。
本实施方式中，通过测量将所有的触控电极3011以及3021充电到一个额定电压值的时间来确定触摸点的位置，以自容式触控面板为例，假设对触控电极3011以及3021进行充电的充电电压为Vin，要对所有的电容进行充电达到的额定电压值为Vout，各自与地形成的自电容值为C，导线的等效电阻为R，那么，根据充电到额定电压值Vout与充电时间t的公式Vout＝Vin(1-e-t/RC)可知，只要保证额定充电电压Vin，所有导线3012、3022的等效电阻R相等，所有电容的容置C相等即可准确确定充电的时间，即确定触碰点的位置。
本实施方式中，为了实现所有导线3012、3022的等效电阻相等，先测量每条导线3012、3022自身的电阻。
具体地，由导线电阻计算公式R＝(ρL)/S计算得到每一根导线3012、3022的电阻值，其中，ρ为导线电阻率，L为导线的长度，在本实施方式中为触控电极3011、3021到控制器303的导线长度，S为导线的横截面积。在一个优选的实施方式中，连接横向触控电极以及纵向触控电极的导线为同种材料，相同粗细的导线，直接通过测量导线的长度便可得知每根导线的电阻，简化测量过程。 在其他实施方式中也可以使用材料和导线粗细不同的导线，只要保证等效电阻等彼此相等即可，在此不做限制。
通过测量计算得到每根导线3012或3022的电阻值后，确定所有导线3012、3022的等效电阻值，根据等效电阻值与每根导线3012或3022的自身电阻值的差确定所串联的第一电阻304的阻值。例如，等效电阻值为100欧姆，而第一导线的电阻值为98欧姆，第二导线的电阻值为99欧姆，那么第一导线对应的第一电阻的阻值为2欧姆，第二导线对应的第一电阻的阻值为1欧姆。
当触控面板通过扫描检测到有触碰点被触摸时，控制器303对所有的触控电极3011以及3021进行扫描，充电电压经导线以及第一电阻对每个触控电极3011、3021所形成的互电容或自电容其进行充电到一额定电压，由于每根电阻的等效电阻值彼此相等，因此，在控制器对所有的横向电极阵列301以及纵向电极阵列302进行充电时，所有的导线所占的分压均相等，对触控电极3011、3021所形成的互电容或自电容的充电时间么有任何影响，进一步地通过测量每一个充电时间，即可准确判断触摸点的位置，明显提高触控面板的显示精度。
进一步的如图4所示，横轴表示电容充电时间，纵轴表示充电电压，以被触碰后，触控面板的自电容或互电容的电容值会增大为例来说明，实线表示未被触碰前的充电时间曲线，虚线表示触碰点被触碰后的充电曲线，当触碰前后，都充电到额定电压值Vout时，未被触碰前的充电时间为t1，触碰点被触碰后的充电时间t2，由于触碰后电容值增大，所以充电时间也发生了变化。又由于其他的触控电极均未被触碰，电容值都相等，对应的充电时间t1也相等，那么充电时间为t2的自电容或互电容对应的触碰点就是本次被触碰的位置。
在一个优选的实施方式中，为了节省触控面板的空间，减少误差，每根导线上所串联的第一电阻为贴片式电阻。在其他实施方式中，根据需要，第一电阻也可以为其他类型的电阻，在此不做限定。
在另一个优选的实施方式中，为了使触控面板的检测精度更加精确，相邻的所述横向电极阵列301之间的第一间距均相等，相邻的所述纵向电极阵列302之间的第二间距均相等。在其他的实施方式中，根据需要也可以对第一间距和第二间距进行其他设定，在此不做限制。
区别与现有技术，本发明的触控基板包括相互延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条横向电极阵列和每条纵向电极阵列分别通过串联一条导线与控制器连接，每条导线上还串联一个第一电阻，每条导线的自身电 阻值与其串联的第一电阻的阻值的和所构成的等效电阻值彼此相等，使触摸屏在接收到触碰动作时，控制器能准确确定触碰的位置，避免由于导线电阻值不同而带来的误差而造成检测不准的问题，有效提高触摸屏的检测精度。
如图5所示，图5为本发明触控显示装置一实施方式的结构示意图。本实施方式的触控显示面板包括触控面板501以及液晶组件502，液晶组件包括第一基板5021，第二基板5023以及置于第一基板5021以及第二基板5023之间的液晶分子5022。需要说明的是，图5中触控面板501与液晶组件502之间的关系只是相对关系，根据电容式触控显示装置的不同类型，具有不同的位置关系，上述关系只是举例说明，并非限制。
进一步的如图6所示，图6为触控显示装置一具体实施方式的结构示意图。
本实施方式中，触控显示装置包括触控面板601，触控面板601包括延伸方向相互垂直的横向电极阵列6011、纵向电极阵列6012，液晶组件的第一基板602包括控制器6021，其中，每条横向电极阵列6011和每条纵向电极阵列6012上分别包括至少两个触控电极60111以及60121，所述触控电极60111以及60121为纳米铟锡金属氧化物ITO电极，在其他实施方式中，也可以为其他类型电极，在此不做限定。每条横向电极阵列6011和每条纵向电极阵列6021分别通过一条导线60112、60122与控制器6021连接。为了保证连接触控电极60111以及触控电极60121的导线60112以及导线60122的等效电阻值彼此相等，所有的导线60112以及60122均串联一个与其自身电阻值相对应的第一电阻603。
具体地，本实施方式中的触控面板601为电容式触控面板，包括自容式触控面板以及互容式触控面板。而电容式触控面板的工作原理就在于当用户触碰到触控面板，会改变电容式触控面板的现有的电容，如自容式触控面板中的触控电极60111或60121与地构成的自电容，互容式触控面板中的横向电极阵列6011和纵向电极阵列6012交叉处的横向的触控电极60111和纵向的触控电极60121相互形成的互电容。通过检测由于用户手指触摸而发生电容量发生改变的触控电极的位置坐标，触控面板便可确定触摸的位置。
本实施方式中，通过测量将所有的触控电极60121以及60121充电到一个额定电压值的时间来确定触摸点的位置，以自容式触控面板为例，假设对触控电极60121以及60121进行充电的充电电压为Vin，要对所有的电容进行充电达到的额定电压值为Vout，各自与地形成的自电容值为C，导线的等效电阻为R，那么，根据充电到额定电压值Vout与充电时间t的公式Vout＝Vin(1-e-t/RC)可 知，只要保证额定充电电压Vin，所有导线60112、60122的等效电阻R相等，所有电容的容置C相等即可准确确定充电的时间，即确定触碰点的位置。
本实施方式中，为了实现所有导线60112、60122的等效电阻相等，先测量每条导线60112、60122自身的电阻。
具体地，由导线电阻计算公式R＝(ρL)/S计算得到每一根导线60112、60122的电阻值，其中，ρ为导线电阻率，L为导线的长度，在本实施方式中为触控电极60111、60121到控制器6021的导线长度，S为导线的横截面积。在一个优选的实施方式中，连接横向触控电极以及纵向触控电极的导线为同种材料，相同粗细的导线，直接通过测量导线的长度便可得知每根导线的电阻，简化测量过程。在其他实施方式中也可以使用材料和导线粗细不同的导线，只要保证等效电阻等彼此相等即可，在此不做限制。
通过测量计算得到每根导线60112或60122的电阻值后，确定所有导线60112、60122的等效电阻值，根据等效电阻值与每根导线60112或60122的自身电阻值的差确定所串联的第一电阻603的阻值。例如，等效电阻值为100欧姆，而第一导线的电阻值为98欧姆，第二导线的电阻值为99欧姆，那么第一导线对应的第一电阻的阻值为2欧姆，第二导线对应的第一电阻的阻值为1欧姆。
当触控面板通过扫描检测到有触碰点被触摸时，控制器6021对所有的触控电极60111以及60121进行扫描，充电电压经导线以及第一电阻对每个触控电极60111以及60121所形成的互电容或自电容其进行充电到一额定电压，由于每根电阻的等效电阻值彼此相等，因此，在控制器对所有的横向电极阵列6011以及纵向电极阵列6012进行充电时，所有的导线所占的分压均相等，对触控电极60111以及60121所形成的互电容或自电容的充电时间么有任何影响，进一步地通过测量每一个充电时间，即可准确判断触摸点的位置，明显提高触控面板的显示精度。
在一个优选的实施方式中，为了节省触控面板的空间，减少误差，每根导线上所串联的第一电阻为贴片式电阻。在其他实施方式中，根据需要，第一电阻也可以为其他类型的电阻，在此不做限定。
在另一个优选的实施方式中，为了使触控面板的检测精度更加精确，相邻的所述横向电极阵列6011之间的第一间距均相等，相邻的所述纵向电极阵列6012之间的第二间距均相等。在其他的实施方式中，也可以根据需要也可以对 第一间距和第二间距进行其他设定，在此不做限制。
区别与现有技术，本发明的触控显示装置包括触控面板，触控面板包括相互延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条横向电极阵列和每条纵向电极阵列分别通过串联一条导线与控制器连接，每条导线上还串联一个第一电阻，每条导线的自身电阻值与其串联的第一电阻的阻值的和所构成的等效电阻值彼此相等，使触摸屏在接收到触碰动作时，控制器能准确确定触碰的位置，避免由于导线电阻值不同而带来的误差而造成检测不准的问题，有效提高触摸屏的检测精度。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种触控面板，其中，所述触控面板包括：延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等；
    相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等；
    所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
  2. 根据权利要求1所述的触控面板，其中，所述第一电阻均为贴片式电阻。
  3. 根据权利要求1所述的触控面板，其中，所述触控面板包括自容式触控面板和互容式触控面板。
  4. 一种触控面板，其中，所述触控面板包括：延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等。
  5. 根据权利要求4所述的触控面板，其中，相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等。
  6. 根据权利要求4所述的触控面板，其中，所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
  7. 根据权利要求4所述的触控面板，其中，所述第一电阻均为贴片式电阻。
  8. 根据权利要求4所述的触控面板，其中，所述触控面板包括自容式触控面板和互容式触控面板。
  9. 一种触控显示装置，其中，所述触控显示装置包括触控面板，
    所述触控面板包括延伸方向互相垂直的横向电极阵列和纵向电极阵列，每条所述横向电极阵列和每条所述纵向电极阵列分别通过一条导线与控制器连接，其中，所有的所述导线均串联一个第一电阻，每条所述导线的自身电阻值与其 串联的所述第一电阻的阻值的和所构成的等效电阻值彼此相等。
  10. 根据权利要求9所述的触控显示装置，其中，相邻的所述横向电极阵列之间的第一间距均相等，相邻的所述纵向电极阵列之间的第二间距均相等。
  11. 根据权利要求9所述的触控显示装置，其中，所述横向电极阵列与所述纵向电极阵列均包括至少两个纳米铟锡金属氧化物ITO电极。
  12. 根据权利要求9所述的触控显示装置，其中，所述第一电阻均为贴片式电阻。
  13. 根据权利要求9所述的触控显示装置，其中，所述触控面板包括自容式触控面板和互容式触控面板。
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