WO2014114147A1 - 单层电容触摸传感器及触控终端 - Google Patents

单层电容触摸传感器及触控终端 Download PDF

Info

Publication number
WO2014114147A1
WO2014114147A1 PCT/CN2013/088884 CN2013088884W WO2014114147A1 WO 2014114147 A1 WO2014114147 A1 WO 2014114147A1 CN 2013088884 W CN2013088884 W CN 2013088884W WO 2014114147 A1 WO2014114147 A1 WO 2014114147A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
electrode
driving
sensing
touch sensor
Prior art date
Application number
PCT/CN2013/088884
Other languages
English (en)
French (fr)
Inventor
邓耿淳
李海
刘武
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Publication of WO2014114147A1 publication Critical patent/WO2014114147A1/zh
Priority to US14/548,449 priority Critical patent/US9501192B2/en

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a single-layer capacitive touch sensor and a touch terminal.
  • Conventional capacitive touch sensors usually require multiple layers of conductive material structure, some of which are realized by a single layer of conductive material structure, but need to add jumpers at the intersection of the X direction and the Y direction to form X and Y crosses.
  • the network that is, the structure in which the electrodes of one dimension are designed to be jumpered on the electrodes of another dimension.
  • it is first necessary to lay an insulation layer at the intersection position, and then lay the insulation layer on the insulation layer.
  • a jumper formed of a conductive material which is very complicated and requires high process precision.
  • Capacitive touch sensor touch detection technology currently has two methods: mutual capacitance detection and self capacitance detection. Because the mutual capacitance detection method has the characteristics of multi-touch, it has become the mainstream capacitive touch detection technology, but at the same time, mutual capacitance detection also has some defects, such as the suspension effect.
  • the floating effect means that when the touch terminal is placed on the surface of a highly insulated object (ie, when it is in a suspended state), touching the touch terminal with a larger finger (such as a thumb) may cause the touch area to be smaller than other fingers. The phenomenon. As user experience requirements become higher and higher, the floating effect becomes an important drawback of product performance using mutual capacitance detection.
  • the principle of the floating effect of mutual capacitance is as follows: In the non-suspended state, due to the large capacitive reactance of the human body to the ground, the impedance of the signal through the human body to the ground and the capacitive reactance are largely coupled with the ground, thereby reducing the node by cutting off the magnetic induction line. Capacitance, and can detect the corresponding amount of change; in the floating state, the capacitive reactance to the ground is very small, the signal can hardly pass, when there is a large area pressing (such as a thumb touch), due to this suspension effect, This is the opposite of the expectation that the position capacitance of the pressing center increases and the surrounding capacitance decreases.
  • the main manifestation of the suspension effect is the difficulty in judging the decompression of the thumb and the large area.
  • the main solution to this problem is to use a metal casing, increase the area of the equipment to the ground, and reduce the coupling capacitance of the drive, the induction and the finger.
  • the metal casing has the limitation of having to be in contact with the finger, and the device has a product limitation on the ground area, and reducing the coupling capacitance of the driving, the sensing and the finger has an influence on the signal-to-noise ratio.
  • the invention provides a single-layer capacitive touch sensor and a touch terminal, which aims to improve the suspension effect of the existing capacitive touch sensor and solve the technical problem that the existing capacitive touch sensor wiring process is complicated.
  • a single-layer capacitive touch sensor includes a substrate on which the substrate is disposed:
  • sensing electrodes include sensing electrode blocks disposed along the first direction, and extending from the same side of the sensing electrode block to the second direction with the sensing electrode block as a starting point a plurality of sensing electrode extensions, the first direction is perpendicular to the second direction, and the extending direction of the sensing electrode extensions of the adjacent sensing electrodes is opposite;
  • the driving electrodes of each row comprising a driving electrode unit having the same number as the number of sensing electrode columns, the driving electrode unit comprising driving electrode blocks arranged along the first direction, wherein the driving electrode blocks a plurality of driving electrode extension portions extending in a direction opposite to the second direction from the driving electrode block as a starting point, so that the driving electrode extension portion is engaged with the corresponding sensing electrode extension portion;
  • the present invention also provides a touch terminal, which uses the single-layer capacitive touch sensor of the present invention.
  • the technical effect of the present invention is that in the single-layer conductive material structure, the driving electrode and the sensing electrode are designed as a snap-in structure, and the capacitor structure is formed by the nip portion, and the jumper is not required to be designed, so that the wiring is simplified to a certain extent.
  • the requirements for the process conditions are reduced, the structure is simple, and the processing is easy; further, a strip-shaped ground electrode is added on the substrate, and the suspension effect of the single-layer capacitive touch sensor is improved by increasing the area of the ground, and the substrate is also fully utilized. The area for the blind spot.
  • FIG. 1 is a schematic diagram of wiring of a single-layer capacitive touch sensor according to Embodiment 1 of the present invention.
  • Figure 2 is an enlarged schematic view of a portion A of Figure 1.
  • FIG. 3 is a schematic diagram of wiring of a single-layer capacitive touch sensor according to Embodiment 4 of the present invention.
  • Figure 4 is an enlarged schematic view of a portion B of Figure 3.
  • Figure 5 is an enlarged schematic view of a portion C of Figure 3.
  • the invention provides a single-layer capacitive touch sensor, comprising a substrate, the substrate is provided with a plurality of sensing electrodes arranged along a first direction, and the sensing electrodes comprise sensing electrode blocks arranged along the first direction, on the same side of the sensing electrode block,
  • the sensing electrode block is a plurality of sensing electrode extensions extending from the starting point in the second direction, the first direction is perpendicular to the second direction, and the extending direction of the sensing electrode extensions of the adjacent sensing electrodes is opposite;
  • a plurality of driving electrodes arranged along the second direction are further disposed on the substrate, and the driving electrodes of each row comprise driving electrode units having the same number as the number of sensing electrode columns;
  • the driving electrode unit comprises driving electrode blocks arranged along the first direction, and the driving electrodes are a plurality of driving electrode extension portions extending in a direction opposite to the second direction from the driving electrode block on the same side of the block, so that the driving electrode extending portion and the corresponding sensing electrode extending portion are engaged with each other;
  • the constructed node block is an effective touch node;
  • a plurality of ground electrodes arranged in the first direction and located between the saturated faces of the adjacent sensing electrodes are also disposed on the substrate.
  • the saturated surface refers to a surface on which the sensing electrode is completely smooth.
  • the saturated surface of the sensing electrode is the surface corresponding to the sensing electrode block of the sensing electrode
  • the unsaturated surface is the surface corresponding to the extending portion of the sensing electrode.
  • the driving electrode saturation surface is the surface corresponding to the driving electrode block of the driving electrode
  • the unsaturated surface is the surface corresponding to the driving electrode extension portion.
  • the floating block in the area for maintaining the flatness and transmittance of the entire substrate wiring, wherein the floating block means no Electrically independent metal wire connected by any trace.
  • replacing the floating block with the ground electrode further increases the ground line, and the floating effect of the capacitive touch sensor can be improved.
  • the same material may be used for the induction electrode, the drive electrode, the ground electrode, and the suspension block, and for example, it may be a conductive material such as ITO.
  • the invention also provides a touch terminal using the single-layer capacitive touch sensor described above.
  • the sensing electrode and the driving electrode are designed in such a manner that the extending portions are engaged with each other, and the capacitor structure is formed by the nip portion, thereby eliminating the need to design jumpers and simplifying the wiring, so that the capacitive touch sensor has a simpler structure and is easier to process.
  • the ground electrode is further added to the region between the saturated surface of the sensing electrode on the substrate, and the grounding area is increased, so that the floating effect of the capacitive touch sensor can be greatly improved.
  • the single-layer capacitive touch sensor is provided with a plurality of sensing electrodes 1 arranged in a vertical direction (electrically connected to RX), a plurality of driving electrodes 2 arranged in a horizontal direction (electrically connected to TX), and A plurality of ground electrodes 3 (electrically connected to GND) arranged in the vertical direction.
  • the drive electrode trace 23 is led out to a flexible printed circuit board bonded to the substrate (Flexible Printed Circuit, FPC).
  • the sensing electrode 1 includes an inductive electrode block 11 and a plurality of sensing electrode extensions 12 extending in the horizontal direction from the same side of the sensing electrode block 11 with the sensing electrode block 11 as a starting point.
  • the sensing electrode extensions 11 of the adjacent sensing electrodes 1 extend in opposite directions to form two opposite structures.
  • Each row of driving electrodes 2 includes driving electrode units equal in number to the number of columns of the sensing electrodes 1, such that each column of sensing electrodes 1 corresponds to a plurality of rows of driving electrode units.
  • Each of the driving electrode units includes a driving electrode block 21 that is vertically disposed, and a plurality of driving electrode extensions 22 that extend in the horizontal direction starting from the driving electrode block 21 on the same side of the driving electrode block 21, for example, usually each The drive electrode block 21 may include 3 to 5 drive electrode extensions 22.
  • the sensing electrode 1 and the driving electrode 2 form a back-to-back arrangement between the electrodes of the same type in the horizontal direction, such as "drive-induction-induction-drive-drive-induction-induction-drive".
  • the extending direction of the driving electrode extension 22 is opposite to the direction in which the corresponding sensing electrode extension 12 extends, so that the driving electrode extension 22 is engaged with the corresponding sensing electrode extension 12.
  • a capacitance structure is formed at a position where the sensing electrode extension portion 12 and the driving electrode extension portion 22 are engaged. In this way, the sensing electrode extension portion 12 can sense the change of the charge on the driving electrode extension portion 22 in real time, thereby realizing single-layer touch detection without jumpers, simplifying the wiring, and reducing the requirements on the process conditions to a certain extent.
  • the structure is simple and easy to process.
  • the spacing between the sensing electrode extension 12 and the driving electrode extension 22 may be appropriately selected according to the process and electric field divergence requirements, preferably 0.1 mm or more and 0.6 mm or less.
  • a floating block that is, a third floating block 43 may be disposed in a region between the sensing electrode extending portion 12 and the driving electrode extending portion 22.
  • One of the functions of the third floating block 43 is to cause the electric field between the driving and the sensing to be more divergent, which is beneficial to the touch change; the second effect is to effectively reduce the total area of the driving and sensing of the node portion, and the finger is transmitted through the finger in the floating state.
  • the induced interference signal becomes smaller.
  • the gap between the sensing electrode block 11, the sensing electrode extending portion 12, the driving electrode block 21, the driving electrode extending portion 22, the third floating block 43, and each of the third floating blocks 43 constitutes a gap. Complete touch detection node.
  • a single-sided outgoing line is adopted, that is, a flexible printed circuit board is bound only to a bottom edge of the substrate (the upper bottom side in this embodiment).
  • the driving electrode trace 23 is led out to the flexible printed circuit board, and both sides of the driving electrode trace 23 are adjacent to the driving electrode 2.
  • the driving electrode 2 isolates the wiring 23 from the sensing electrode 1 to shield the driving electrode trace 23. Interference signal with the sensing electrode 1.
  • the driving electrode 2 isolates the trace 23 from the sensing electrode 1 and can be grounded when there is no scanning, so the electric field between the driving electrode trace 23 and the sensing electrode 1 is completely absorbed by the intermediate driving electrode block 21, and the mutual capacitance Zero, the trace does not interfere with data generation when the trace area is touched.
  • This unilateral outlet is best suited for up to 100 ohms.
  • a plurality of ground electrodes 3 arranged in the vertical direction and located between the saturated surfaces of the adjacent sensing electrodes are further disposed on the substrate.
  • each pair of adjacent sensing electrodes has a ground electrode 3 between the saturated faces of the sensing electrodes, which are arranged in a strip shape.
  • the width of the ground electrode 3 may be 2.2 mm or less, and the width may be too large to affect the linearity of the capacitive touch sensor.
  • the second floating block 42 is disposed in the gap region between the ground electrode 3 and the sensing electrode block 11, and the second floating block 42 functions to improve the signal attenuation of the sensing electrode 1.
  • the sensing electrode extension 12, the driving electrode extension 22, and the ground electrode 3 are all wave-shaped, and the wave-shaped design can improve the visual effect of the capacitive touch sensor compared with the conventional linear rectangular design.
  • Embodiment 2 of the present invention also provides a single layer capacitive touch sensor.
  • the embodiment adopts a bilateral outgoing line manner, that is, a flexible printed circuit board is bound to the upper and lower bottom edges of the substrate, and the driving electrode trace 23 is led out to the upper and lower bottom edges of the substrate.
  • the upper and lower bottom edges of the flexible printed circuit board can reduce the length of the driving electrode trace 22 by half, and the adaptable square resistance can be doubled, which can adapt to a wider driving frequency range.
  • This bilateral approach is best suited for up to 200 ohms.
  • the rest of this embodiment is similar to Embodiment 1, and will not be described again here.
  • Embodiment 3 of the present invention also provides a single layer capacitive touch sensor.
  • the difference from Embodiment 1 is that the induction electrode extension portion 12, the drive electrode extension portion 22, and the ground electrode 3 in this embodiment are both rectangular structures.
  • One function of the rectangular symmetrical bite is to make the node capacitance distribution more uniform, increase the touch effective interval, and the other function can reduce the effective facing area of the sensing electrode 1 and the wiring area, and reduce the sensing electrode 1 and the wiring line.
  • Mutual capacitance The rest of this embodiment is similar to Embodiment 1, and will not be described again here.
  • this embodiment is mainly different from Embodiment 1 in that there are two ground electrodes 3 arranged in stripes between each pair of adjacent sensing electrode saturation faces; and the last two rows of driving electrodes
  • the wiring 23 of the unit is twisted, that is, the driving trace 23 of the driving electrode unit of the last two rows is changed from the two driving electrodes in the first embodiment to the two grounds between the adjacent sensing electrodes 1 in the first embodiment.
  • Between the electrodes 3. As shown in the figure, at most two rows farther from the FPC (two rows in this embodiment), the traces 23 of the drive electrode unit are adjacent to the ground electrode 3, and the traces 23 of the remaining drive electrodes are both
  • the drive electrodes 2 are adjacent such that the remaining drive electrodes isolate their traces from the sense electrodes. For the case of single-sided routing, the routing method does not make the routing too thin, and the driving electrode routing 23 is divided into two regions, which can reduce the process pressure.
  • the width of the ground electrode 3 is greater than or equal to the width of the sensing electrode block 11. double.
  • the width of the ground electrode 3 is greater than or equal to 0.6 mm.
  • a floating block (second floating block 42) may be provided between the ground electrode 3 and the sensing electrode block 11 to improve signal attenuation of the sensing electrode 1.
  • a first floating block 41 is further provided in the gap region between the ground electrode 3 and the trace of at most two rows of drive electrodes farthest from the flexible printed wiring board.
  • the action of the first floating block 41 can attenuate the degree of attenuation of the drive electrode trace 23 by the ground electrode 3.
  • the first floating block 41 may be selected.
  • the sensing electrode extension 12 and the driving electrode extension 22 are both rectangular in shape. However, it should be understood that they may also adopt a wave shape as in Embodiment 1.
  • the description of the directions in this specification has a relative meaning.
  • the second direction perpendicular to the first direction is the horizontal direction; otherwise, when the first direction is specified as the horizontal direction, the second direction perpendicular to the first direction is the second direction
  • the direction is vertical.
  • the description in the above embodiments is based on the single-layer capacitive touch sensor on the mobile phone as an example of the application of the touch screen of the mobile phone, it should be understood that the single-layer capacitive touch sensor and the corresponding touch terminal of the present invention are also Can be applied to mobile phones, tablets, various self-service terminals and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

本发明涉及触控技术领域，提供一种单层电容触摸传感器及触控终端，其中单层电容触摸传感器在基板上布设有若干列电极延伸部相互咬合的感应电极和驱动电极对；以及若干位于相邻感应电极饱和面之间的地电极。本发明将两种电极设计为咬合形状，通过咬合部分形成电容结构，使布线得以简化；进一步在基板上增加地电极，加大对地面积，从而改善了悬浮效应。

Description

单层电容触摸传感器及触控终端 技术领域
本发明涉及触控技术领域，特别涉及一种单层电容触摸传感器及触控终端。
背景技术
传统的电容触摸传感器通常需要多层导电材料结构，有些虽然只用单层导电材料结构来实现，但却需要在X方向-Y方向交叉点处增加跳线以形成X、Y两个维度相互交叉的网络，即要求其中一个维度的电极设计成在另一个维度的电极上进行跳线的结构，制作跳线结构时，首先需要在交叉的位置布设一绝缘层，然后再在绝缘层上布设由导电材料形成的跳线，这种布线非常复杂，对工艺精度要求较高。
电容触摸传感器触摸检测技术目前主要有互电容检测和自电容检测两种方式。由于互电容检测方式有着多点触摸的特点，使其成为了主流的电容触摸检测技术，但同时互电容检测也存在一些缺陷，例如悬浮效应。悬浮效应是指，当触控终端放置于高绝缘的物体表面时（即处于悬浮状态时），用较大的手指（如大拇指）触摸触控终端，会出现触摸面积反而比其他手指更小的现象。随着用户体验要求越来越高，悬浮效应成了采用互电容检测的产品性能的重要缺陷。
互电容的悬浮效应原理如下：在非悬浮状态下，由于人体对地的容抗较大，信号通过人体对地的阻抗和容抗与地有较大的耦合，从而通过截断磁感应线减小节点电容，并能检测到相应的变化量；而在悬浮状态下，对地的容抗非常小，信号几乎不能通过，当有大面积按压（如大拇指触摸）时，由于这种悬浮效应，将产生按压中心的位置电容增大、周围的电容减小的这种与预期相反的现象。悬浮效应的主要表现为大拇指按压拆点和大面积判断困难。
目前解决该问题的方法主要为采用金属外壳，加大设备对地面积，减小驱动、感应和手指的耦合电容。金属外壳具有必须与手指接触的局限性，加大设备对地面积具有产品的局限性，而减小驱动、感应和手指的耦合电容又会对信噪比有影响。
因此，如何简化单层电容触摸传感器的布线工艺，同时改善电容触摸传感器的悬浮效应，成为目前亟待解决的问题。
 技术问题
本发明提供一种单层电容触摸传感器及触控终端，旨在改善现有电容触摸传感器的悬浮效应，并解决现有电容触摸传感器布线工艺复杂的技术问题。
技术解决方案
一种单层电容触摸传感器，包括基板，所述基板上布设有：
若干沿第一方向排列的感应电极，所述感应电极包括沿第一方向布设的感应电极块，在所述感应电极块的同一侧、以所述感应电极块为起点向第二方向延伸出的若干感应电极延伸部，所述第一方向与第二方向相垂直，并且相邻感应电极的感应电极延伸部的延伸方向相反；
若干沿第二方向排列的驱动电极，每一行的驱动电极包括数量与感应电极列数相等的驱动电极单元，所述驱动电极单元包括沿第一方向布设的驱动电极块，在所述驱动电极块的同一侧、以所述驱动电极块为起点向所述第二方向的反方向延伸出的若干驱动电极延伸部，以使驱动电极延伸部与对应的感应电极延伸部相咬合；以及
若干沿第一方向排列、位于相邻感应电极饱和面之间的地电极。
本发明还提供一种触控终端，所述触控终端采用本发明所述的单层电容触摸传感器。
 有益效果
本发明的技术效果在于：在单层导电材料结构中，将驱动电极和感应电极设计为咬合式结构，通过咬合部分形成电容结构，而无需再设计跳线，使布线得到简化，在一定程度上降低了对工艺条件的要求，结构简单，易加工；进一步在基板上增设条块状的地电极，通过加大对地面积，改善单层电容触摸传感器的悬浮效应，同时还充分利用了基板上原为盲区的面积。
 附图说明
图1是本发明实施例1提供的单层电容触摸传感器的布线示意图。
图2是图1中A部分的放大示意图。
图3是本发明实施例4提供的单层电容触摸传感器的布线示意图。
图4是图3中B部分的放大示意图。
图5是图3中C部分的放大示意图。
附图标记：
感应电极1
感应电极块11
感应电极延伸部12
驱动电极2
驱动电极块21
驱动电极延伸部22
驱动电极走线23
地电极3
第一悬浮块41
第二悬浮块42
第三悬浮块43
本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用于解释本发明，并不用于限定本发明。
本发明提供一种单层电容触摸传感器，包括基板，基板上布设有若干沿第一方向排列的感应电极，感应电极包括沿第一方向布设的感应电极块，在感应电极块的同一侧、以感应电极块为起点向第二方向延伸出的若干感应电极延伸部，第一方向与第二方向相垂直，并且相邻感应电极的感应电极延伸部的延伸方向相反；
基板上还布设有若干沿第二方向排列的驱动电极，每一行的驱动电极包括数量与感应电极列数相等的驱动电极单元；驱动电极单元包括沿第一方向布设的驱动电极块，在驱动电极块的同一侧、以驱动电极块为起点向第二方向的反方向延伸出的若干驱动电极延伸部，以使所述驱动电极延伸部与对应的所述感应电极延伸部相咬合，相咬合部分构成的节点块即为有效触摸节点；
基板上还布设有若干沿第一方向排列、位于相邻感应电极饱和面之间的地电极。其中，饱和面是指感应电极完全平滑的一面，在本发明中，感应电极饱和面即为感应电极的感应电极块对应的一面，其非饱和面则为感应电极延伸部对应的一面。类似地，驱动电极饱和面即为驱动电极的驱动电极块对应的一面，其非饱和面则为驱动电极延伸部对应的一面。在相邻感应电极饱和面之间的区域内完全没有走线，通常的做法是在该区域内设有悬浮块，用于保持整个基板布线的平整度和透光率，其中悬浮块是指没有任何走线连接的电气独立金属线。而在本发明中，将悬浮块替换为地电极，进一步加大了地线，可以改善电容触摸传感器的悬浮效应。本发明中，感应电极、驱动电极、地电极以及悬浮块均可以使用相同的材质，例如均可以为ITO等导电材料。
本发明还提供一种采用上述的单层电容触摸传感器的触控终端。
本发明的实施例中，将感应电极与驱动电极设计为延伸部相互咬合的形式，通过咬合部分形成电容结构，从而无需设计跳线，简化了布线，使得电容触摸传感器结构更为简单，加工容易；在该电极设计的基础上，进一步在基板上感应电极饱和面之间的区域增设地电极，加大了对地面积，从而能够大大改善电容触摸传感器的悬浮效应。
实施例1
图1和图2所示为本发明实施例1的单层电容触摸传感器。该实施例中，以竖直方向为第一方向，水平方向为第二方向。从图中可见，该单层电容触摸传感器在基板上布设有若干沿竖直方向排列的感应电极1（电气连接至RX）、若干沿水平方向排列的驱动电极2（电气连接至TX），以及若干沿竖直方向排列的地电极3（电气连接至GND）。驱动电极走线23引出至与基板绑定的柔性印刷电路板（Flexible Printed Circuit，FPC）。
感应电极1包括感应电极块11，以及在感应电极块11同一侧、以感应电极块11为起点在水平方向延伸的若干感应电极延伸部12。相邻的感应电极1的感应电极延伸部11的延伸方向相反，从而形成两两相对的结构。每一行驱动电极2都包括与感应电极1列数相等的驱动电极单元，使得每一列感应电极1都对应有若干行驱动电极单元。每个驱动电极单元均包括竖直布设的驱动电极块21，以及在驱动电极块21同一侧、以驱动电极块21为起点在水平方向延伸的若干个驱动电极延伸部22，例如，通常每个驱动电极块21可以包含3至5个驱动电极延伸部22。图中感应电极1与驱动电极2在水平方向上形成“驱动-感应-感应-驱动-驱动-感应-感应-驱动...”这样同类电极之间背靠背式的排布。
驱动电极延伸部22的延伸方向与其相对应的感应电极延伸部12的延伸方向相反，以使得驱动电极延伸部22与对应的感应电极延伸部12相咬合。在感应电极延伸部12与驱动电极延伸部22的咬合位置即形成电容结构。如此，感应电极延伸部12可以实时感应到驱动电极延伸部22上的电荷变化，从而无需跳线即可实现单层触摸检测，使布线得到简化，在一定程度上降低了对工艺条件的要求，结构简单，易加工。感应电极延伸部12与驱动电极延伸部22之间的间距可随工艺及电场发散度要求而适当选取，优选大于等于0.1mm且小于等于0.6mm。
该实施例中，感应电极延伸部12与驱动电极延伸部22之间的区域内可以设有悬浮块，即第三悬浮块43。第三悬浮块43的作用之一是导致驱动与感应间的电场更发散，有利于触摸变化；作用之二则是可以有效减小节点部分驱动与感应的总面积，悬浮情况下通过手指传入感应的干扰信号变小。如此，在该实施例中，感应电极块11、感应电极延伸部12、驱动电极块21、驱动电极延伸部22、第三悬浮块43及各个第三悬浮块43之间的缝隙即构成了一个完整的触摸检测节点。
本实施例中采用单边出线的方式，即仅在基板的一底边（本实施例中为上底边）绑定有柔性印刷电路板。驱动电极走线23引出至该柔性印刷电路板，驱动电极走线23两侧均与驱动电极2相邻，驱动电极2将其走线23与感应电极1相隔离，以屏蔽驱动电极走线23与感应电极1间的干扰信号。具体地，驱动电极2将其走线23与感应电极1相隔离，可以在没有扫描的时候接地，因此驱动电极走线23与感应电极1间电场完全被中间的驱动电极块21吸收，互电容为零，触摸走线区时走线完全没有干扰数据产生。此单边出线的方式最佳效果最高可适配到100ohm。
本实施例中，基板上还布设有若干沿竖直方向排列、位于相邻感应电极饱和面之间的地电极3。该实施例中，每对相邻的感应电极饱和面之间具有一个地电极3，呈条状布设。地电极3的宽度可以为小于等于2.2mm，宽度太大可能会影响电容触摸传感器的线性度。该实施例中，地电极3与感应电极块11之间的空隙区域内设有第二悬浮块42，第二悬浮块42的作用在于可以改善感应电极1的信号衰减。
本实施例中，感应电极延伸部12、驱动电极延伸部22以及地电极3均为波浪形，波浪形的设计与传统的直线矩形设计相比，可以改善电容触摸传感器的视觉效果。
实施例2
本发明实施例2也提供一种单层电容触摸传感器。与实施例1的不同之处在于本实施例采用双边出线的方式，即在基板的上下底边均绑定有柔性印刷电路板，驱动电极走线23就近向基板的上下两底边引出，至相应的柔性印刷电路板。这种上下两底边绑定柔性印刷电路板可使驱动电极走线22的长度减半，可适配的方块电阻可以为原来的2倍，能适应更宽的驱动频率范围。此种双边出线的方式最佳效果最高可适配到200ohm。本实施例其余部分与实施例1类似，此处将不再赘述。
实施例3
本发明实施例3也提供一种单层电容触摸传感器。与实施例1的不同之处在于本实施例中的感应电极延伸部12、驱动电极延伸部22和地电极3均为矩形结构。矩型对称咬合的一个作用是使节点电容分布更均匀，增大了触摸有效区间，另一个作用可以减小感应电极1与走线区的有效正对面积，减小感应电极1与走线间的互电容。本实施例其余部分与实施例1类似，此处将不再赘述。
实施例4
图3、图4和图5所示为本发明实施例4的单层电容触摸传感器。同样地，与实施例1相同的地方将不再累述。
从图中可见，该实施例与实施例1主要的不同之处在于：每对相邻的感应电极饱和面之间具有两个呈条状布设的地电极3；并且最末两行的驱动电极单元的走线23进行了扭转，即最末两行的驱动电极单元的驱动走线23由实施例1中的在两个驱动电极之间变为在相邻感应电极1之间的两个地电极3之间。如图所示距离FPC最远的至多两行（本实施例中为两行）驱动电极单元的走线23两侧均与地电极3相邻，而其余驱动电极的走线23两侧均与驱动电极2相邻，以使其余驱动电极将其走线与所述感应电极相隔离。对于单边走线的情形而言，此种走线方式不至于使走线过细，将驱动电极走线23分在两个区域内引出，可以减轻工艺压力。
该实施例中，由于在两个地电极3之间也布设有驱动电极走线23，为了避免驱动电极走线23对感应电极1产生影响，地电极3的宽度大于等于感应电极块11宽度的两倍。例如，当感应电极块11的宽度为0.3mm时，地电极3的宽度大于等于0.6mm。该实施例中，地电极3与感应电极块11之间没有悬浮块。然而应理解，作为该实施例的一种变形，地电极3与感应电极块11之间也可以设有悬浮块（第二悬浮块42），以改善感应电极1的信号衰减。该实施例中，地电极3与距离柔性印刷线路板最远的至多两行驱动电极的走线之间的空隙区域内还设有第一悬浮块41。第一悬浮块41的作用可以减弱地电极3对所述驱动电极走线23的衰减程度。然而，作为该实施例的另一种变形，如果在地电极3与驱动电极走线23的间隙插设第一悬浮块41不足以满足工艺要求，则可选择不插设第一悬浮块41。该实施例中，感应电极延伸部12和驱动电极延伸部22均为矩形形状。然而应理解，它们也可以采用如实施例1中的波浪形。
本说明书中有关方向的描述具有相对的意义。例如，当指定第一方向为竖直方向时，则与第一方向相互垂直的第二方向即为水平方向；反之，当指定第一方向为水平方向时，与第一方向相互垂直的第二方向则为竖直方向。此外，尽管以上实施例中进行的说明均是以该单层电容触摸传感器在手机上，作为手机触摸屏的应用为例，然而应理解，本发明的单层电容触摸传感器及相应的触控终端还可以应用于手机、平板电脑、各种自助服务终端等等。
以上所述本发明的具体实施方式，并不构成对本发明保护范围的限定。任何根据本发明的技术构思所作出的各种其他相应的改变与变形，均应包含在本发明权利要求的保护范围内。

Claims (9)

  1. 一种单层电容触摸传感器，包括基板，其特征在于，所述基板上布设有：
    若干沿第一方向排列的感应电极，所述感应电极包括沿第一方向布设的感应电极块，在所述感应电极块的同一侧、以所述感应电极块为起点向第二方向延伸出的若干感应电极延伸部，所述第一方向与第二方向相垂直，并且相邻感应电极的感应电极延伸部的延伸方向相反；
    若干沿第二方向排列的驱动电极，每一行的驱动电极包括数量与感应电极列数相等的驱动电极单元，所述驱动电极单元包括沿第一方向布设的驱动电极块，在所述驱动电极块的同一侧、以所述驱动电极块为起点向所述第二方向的反方向延伸出的若干驱动电极延伸部，以使所述驱动电极延伸部与对应的所述感应电极延伸部相咬合；以及
    若干沿第一方向排列、位于相邻感应电极饱和面之间的地电极。
  2. 根据权利要求1所述的单层电容触摸传感器，其特征在于，所述相邻感应电极饱和面之间具有一个地电极，并且所述基板的一底边绑定有柔性印刷电路板，所述驱动电极的走线引出至柔性印刷电路板，所述驱动电极的走线两侧均与驱动电极相邻，以使驱动电极将所有驱动电极的走线与感应电极相隔离；或者
    所述相邻感应电极饱和面之间具有一个地电极，并且所述基板的上下两底边均绑定有柔性印刷电路板，所述驱动电极的走线就近向所述基板的上下两底边引出至相应的柔性印刷电路板，所述驱动电极的走线两侧均与驱动电极相邻，以使驱动电极将所有驱动电极的走线与感应电极相隔离。
  3. 根据权利要求1所述的单层电容触摸传感器，其特征在于，所述相邻感应电极饱和面之间具有两个地电极，并且所述基板的一底边绑定有柔性印刷电路板，所述驱动电极的走线引出至所述柔性印刷电路板，其中，距离所述柔性印刷线路板最远的至多两行驱动电极的走线位于相邻感应电极之间的两个地电极之间；其余驱动电极走线两侧均与驱动电极相邻，以使其余驱动电极将其走线与感应电极相隔离。
  4. 根据权利要求3所述的单层电容触摸传感器，其特征在于，所述地电极的宽度大于等于所述感应电极块的两倍。
  5. 根据权利要求3所述的单层电容触摸传感器，其特征在于，所述地电极与距离所述柔性印刷线路板最远的至多两行驱动电极的走线之间的空隙区域内设有或不设有第一悬浮块。
  6. 根据权利要求1所述的单层电容触摸传感器，其特征在于，所述地电极与所述感应电极块之间的空隙区域内设有第二悬浮块。
  7. 根据权利要求1所述的单层电容触摸传感器，其特征在于，所述感应电极延伸部与所述驱动电极延伸部之间设有第三悬浮块。
  8. 根据权利要求1所述的单层电容触摸传感器，其特征在于，所述地电极、所述感应电极延伸部和所述驱动电极延伸部分别为矩形或波浪形结构。
  9. 一种触控终端，其特征在于，所述触控终端采用权利要求1-9中任一项所述的单层电容触摸传感器。
PCT/CN2013/088884 2013-01-25 2013-12-09 单层电容触摸传感器及触控终端 WO2014114147A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/548,449 US9501192B2 (en) 2013-01-25 2014-11-20 Single-layer capacitive touch sensor and touch control terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310028656.X 2013-01-25
CN201310028656.XA CN103105991B (zh) 2013-01-25 2013-01-25 单层电容触摸传感器及触控终端

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/548,449 Continuation US9501192B2 (en) 2013-01-25 2014-11-20 Single-layer capacitive touch sensor and touch control terminal

Publications (1)

Publication Number Publication Date
WO2014114147A1 true WO2014114147A1 (zh) 2014-07-31

Family

ID=48313900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/088884 WO2014114147A1 (zh) 2013-01-25 2013-12-09 单层电容触摸传感器及触控终端

Country Status (3)

Country Link
US (1) US9501192B2 (zh)
CN (1) CN103105991B (zh)
WO (1) WO2014114147A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106708307A (zh) * 2015-11-16 2017-05-24 倍胜光电股份有限公司 具有无感应功能金属线条的触控面板
CN114461098A (zh) * 2022-04-13 2022-05-10 深圳贝特莱电子科技股份有限公司 一种抗干扰电极结构及其单层多点触摸板

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105991B (zh) 2013-01-25 2016-04-06 深圳市汇顶科技股份有限公司 单层电容触摸传感器及触控终端
CN104461100B (zh) * 2013-09-24 2019-08-27 奕力科技股份有限公司 单层的电极结构
KR102178134B1 (ko) * 2013-12-30 2020-11-12 엘지디스플레이 주식회사 정전용량 방식 터치 스크린 패널
CN105320329B (zh) * 2014-07-28 2019-03-15 群创光电股份有限公司 显示面板
JP6757327B2 (ja) * 2015-03-10 2020-09-16 サーク・コーポレーション 単一レイヤのタッチ・センサ上で電極ルーティングを減らす方法
US9894756B2 (en) * 2015-12-08 2018-02-13 Kardium Inc. Circuits for flexible structures
CN105677086B (zh) 2015-12-31 2018-11-23 武汉华星光电技术有限公司 互电容式的内嵌型触摸屏
TWI579750B (zh) 2016-07-01 2017-04-21 友達光電股份有限公司 觸控面板與其製作方法
CN106325640A (zh) * 2016-08-29 2017-01-11 红河以恒科技集团有限公司 一种触控电极结构、触控面板及触控显示装置
CN108717339A (zh) * 2018-05-17 2018-10-30 深圳市华星光电技术有限公司 电容式触摸屏
CN110727366B (zh) * 2018-07-17 2024-04-26 安徽精卓光显技术有限责任公司 触控结构、触控结构的制作方法、触控显示屏及电子设备
CN109240543A (zh) * 2018-10-08 2019-01-18 深圳市德名利电子有限公司 一种触摸面板及显示装置
CN109240544A (zh) * 2018-10-08 2019-01-18 深圳市德名利电子有限公司 一种触控装置及移动终端
WO2021081716A1 (zh) * 2019-10-28 2021-05-06 深圳市汇顶科技股份有限公司 触摸传感器图案、触摸传感器、触控装置和电子终端
CN110865737B (zh) * 2019-11-15 2021-12-28 京东方科技集团股份有限公司 一种触控基板及显示装置
CN112416173A (zh) * 2020-11-25 2021-02-26 业成科技（成都）有限公司 触控面板及触控显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292694A (zh) * 2009-01-21 2011-12-21 Lg伊诺特有限公司 输入装置
CN102364421A (zh) * 2011-10-26 2012-02-29 苏州瀚瑞微电子有限公司 一种感应电容的补偿方法
CN102799329A (zh) * 2012-07-25 2012-11-28 东莞市乐升电子有限公司 具有单层铟锡化合物电极的投射电容触摸屏面板
CN103105991A (zh) * 2013-01-25 2013-05-15 深圳市汇顶科技股份有限公司 单层电容触摸传感器及触控终端
CN203070264U (zh) * 2013-01-25 2013-07-17 深圳市汇顶科技股份有限公司 单层电容触摸传感器及触控终端

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8487898B2 (en) * 2008-04-25 2013-07-16 Apple Inc. Ground guard for capacitive sensing
US20130100038A1 (en) * 2011-10-20 2013-04-25 Atmel Technologies U.K. Limited Single-Layer Touch Sensor
TWI463374B (zh) * 2012-06-07 2014-12-01 Mstar Semiconductor Inc 觸控面板
US9231588B2 (en) * 2013-04-30 2016-01-05 Atmel Corporation Touchscreen routing flow for single layer pattern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292694A (zh) * 2009-01-21 2011-12-21 Lg伊诺特有限公司 输入装置
CN102364421A (zh) * 2011-10-26 2012-02-29 苏州瀚瑞微电子有限公司 一种感应电容的补偿方法
CN102799329A (zh) * 2012-07-25 2012-11-28 东莞市乐升电子有限公司 具有单层铟锡化合物电极的投射电容触摸屏面板
CN103105991A (zh) * 2013-01-25 2013-05-15 深圳市汇顶科技股份有限公司 单层电容触摸传感器及触控终端
CN203070264U (zh) * 2013-01-25 2013-07-17 深圳市汇顶科技股份有限公司 单层电容触摸传感器及触控终端

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106708307A (zh) * 2015-11-16 2017-05-24 倍胜光电股份有限公司 具有无感应功能金属线条的触控面板
CN106708307B (zh) * 2015-11-16 2023-04-21 台湾格雷蒙股份有限公司 具有无感应功能金属线条的触控面板
CN114461098A (zh) * 2022-04-13 2022-05-10 深圳贝特莱电子科技股份有限公司 一种抗干扰电极结构及其单层多点触摸板

Also Published As

Publication number Publication date
US20150091866A1 (en) 2015-04-02
CN103105991B (zh) 2016-04-06
US9501192B2 (en) 2016-11-22
CN103105991A (zh) 2013-05-15

Similar Documents

Publication Publication Date Title
WO2014114147A1 (zh) 单层电容触摸传感器及触控终端
WO2014114148A1 (zh) 单层电容触摸传感器及触控终端
JP5059844B2 (ja) キャパシティタッチパネル
WO2013131361A1 (zh) 单层式二维触摸传感器及触控终端
TWI464656B (zh) 觸控面板的電極結構、製造方法以及觸控面板
WO2017024599A1 (zh) 一种具有触控功能的阵列基板及显示装置
KR200468848Y1 (ko) 투영 정전용량 터치 패널
CN103576998A (zh) 电容式触摸屏及单层布线电极阵列
WO2017076209A1 (zh) 一种单层布线的电容式触摸传感器及触摸屏
JP3174556U (ja) 干渉遮蔽能力をもったタッチパネル
WO2014067401A1 (en) Touch panel
KR101814656B1 (ko) 전기 장치 및 그에 따른 단일 층 상호 정전용량 터치 스크린
CN206991268U (zh) 触控面板及显示设备
WO2016090691A1 (zh) 电磁感应式触控基板及显示装置
WO2014153897A1 (zh) 透明导电膜
CN104850295B (zh) 触控显示装置及彩色滤光片基板
TWM500929U (zh) 觸控式螢幕設備及其單層互電容觸控式螢幕體和電子裝置
WO2014071793A1 (zh) 触控感应电极结构及其制造方法
CN110140105A (zh) 触控基板及其制备方法、触控显示面板、触控显示装置
CN107390914A (zh) 触控面板及显示设备
TWI467460B (zh) 投射電容式觸控面板
CN101853113A (zh) 一种含有梳状式电极的电容式触控板
TWI552061B (zh) 觸控式螢幕設備及其單層互電容觸控式螢幕體和電子裝置
CN202956748U (zh) 共接式走线的电容式触控面板
CN202720617U (zh) 一种单层电容式二维触摸传感器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13872798

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13872798

Country of ref document: EP

Kind code of ref document: A1