WO2016000281A1 - 基于单层金属网格的互电容多点触控电极结构 - Google Patents

基于单层金属网格的互电容多点触控电极结构 Download PDF

Info

Publication number
WO2016000281A1
WO2016000281A1 PCT/CN2014/082531 CN2014082531W WO2016000281A1 WO 2016000281 A1 WO2016000281 A1 WO 2016000281A1 CN 2014082531 W CN2014082531 W CN 2014082531W WO 2016000281 A1 WO2016000281 A1 WO 2016000281A1
Authority
WO
WIPO (PCT)
Prior art keywords
line
driving
sensing
grid
layer
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/082531
Other languages
English (en)
French (fr)
Inventor
付如海
林永伦
张君恺
邱杰
叶成亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/390,384 priority Critical patent/US20160291717A1/en
Publication of WO2016000281A1 publication Critical patent/WO2016000281A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a mutual-capacitance multi-touch electrode structure based on a single-layer metal mesh. Background technique
  • the multi-touch panel can be operated by two fingers or multiple fingers or even multiple people at the same time, which makes the operation more convenient and more user-friendly.
  • the single-layer multi-touch panel developed in recent years not only has the advantages of a general multi-touch panel, but also has a small thickness, which is advantageous for the development of touch electronic products in a lighter and thinner direction.
  • FIG. 1 is a schematic structural diagram of a conventional single-layer multi-touch panel based on a transparent conductive film.
  • all the driving poles and the sensing poles of the conventional single-layer multi-touch panel conductive structure require an electrode line 100 to be taken out from the visible area, and both lead from the same end, resulting in a visible area.
  • the electrode lead 100 occupies a large area.
  • FIG. 2 and FIG. 1 are schematic structural diagram corresponding to the local position 200 of the single-layer multi-touch panel structure of FIG. 1 .
  • All of the driver lines 101 in the conventional single-layer (Touch Panel) touch panel are disposed on the same side of the sensing pole line 102 to implement a single-layer multi-touch function.
  • the indium tin oxide (Indium Tin Oxide, ⁇ ) in the single-layer touch panel has a large impedance, so the drive line (route) 101 cannot be made very thin, so that a narrow dead zone cannot be made, that is, the drive line
  • the 101 has a wide width, which causes the driver circuit (route) 101 to occupy a large area in the single-layer touch panel, resulting in a mutual capacitance blind area of the touch, and the continuity of the touch is destroyed.
  • the area of the touch sensing effective area 201 is relatively reduced, and the area of the touch sensing dead zone 202 is relatively increased.
  • the presence of the touch sensing dead zone 202 may cause a large deviation in the weight calculation in the positioning calculation for the touch object, because when the touch object moves from one touch sensing unit to another touch sensing unit, A wider (larger area) blind area 202 may make the touch object unable to cover immediately to another touch sensing unit. Therefore, a smooth transition cannot be achieved when performing weight calculation, and a touch is biased forward when performing positioning calculation. Sensing unit.
  • FIG. 3 is a schematic diagram of the influence of the touch sensing blind zone on the position calculation of the touch object in FIG. 1 .
  • the traditional single layer touch panel can calculate more positioning points, and when the touch object is located in the touch sensing blind area 202
  • the transition between the touch sensing active area 201 and the touch sensing dead zone 202 is not stable.
  • FIG. 4 which is a linearity deviation curve of the test corresponding to the diagonal line in FIG.
  • Series 1 is a single layer structure ( single ITO , SITO ) touch panel upper left
  • Series 2 is the linearity deviation curve on the diagonal line from the upper right corner to the lower left corner of the single-layer touch panel.
  • the traditional single-layer touch panel The linearity fluctuates greatly.
  • the conductive layer of the touch panel is mainly formed on the insulating substrate by a process of vacuum plating and pattern etching of indium tin oxide compound, which not only requires high process and equipment, but also wastes a large amount of indium tin oxide in etching.
  • FIG. 5a is a schematic diagram of a conventional diamond-shaped metal grid touch control electrode
  • FIG. 5b is a schematic diagram of a conventional hexagonal metal grid touch electrode.
  • the two-layer structure driving electrode and the sensing electrode used in the touch electrode of the metal grid touch screen can be the same size diamond metal grid electrode; the hexagonal metal mesh with the same size and the sensing pole can be the same size. Grid electrode.
  • FIG. 6a is a conventional metal film GFF based on film material.
  • GFF structure including a cover glass 601 ( Cover Glass), a metal mesh conductive film 602, a first touch film layer 603, and a second touch film layer 604.
  • GFF structure Since the touch screen has only two layers of conductive film, its cost, thickness and weight have been greatly improved, but there are many uncontrollable factors in the manufacturing process, resulting in low product yield and poor performance.
  • the evolution direction of GFF technology is GF. The two layers of film originally used to realize touch sensing are reduced to one layer. Based on the design position of the upper sensing layer, GF has two kinds of programs GIF and GF2.
  • FIG. 6b is a schematic structural diagram of a conventional metal material GF2 touch panel based on a thin film material, including: a glass cover 601 and a metal mesh conductive film 602 . And the touch film layer 605.
  • the metal grid GF2 touch structure is lighter and thinner than the GFF touch structure, which is beneficial to reduce the production cost, and can be made into a narrow frame touch screen.
  • the object of the present invention is to provide a mutual-capacitance multi-touch electrode structure based on a single-layer metal grid, which can narrow the blind zone and thereby reduce the linearity fluctuation of the single-layer mutual capacitance structure.
  • the present invention provides a mutual-capacitance multi-touch electrode structure based on a single-layer metal mesh, comprising: a metal conductive mesh layer; the metal conductive mesh layer includes a plurality of driving line regions, and a plurality of a sensing line area, and a plurality of shielding line areas; the driving line area is located in the shielding One side of the line region, the sensing line region is located on the other side of the shield line region; the driving line region, the sensing line region, and the shielding line region respectively have a plurality of grid cells, and each of the regions The grid cells are electrically connected to each other, and adjacent grid cells of adjacent regions are electrically connected to each other; the grid cells include a plurality of mesh edges and nodes formed by adjacent two mesh edges.
  • the driving line region includes: a plurality of first driving electrodes and a plurality of second driving electrodes, the first driving electrode includes a plurality of first driving lines, and the second driving electrode includes a plurality of second driving lines;
  • the sensing line region includes a plurality of sensing poles, the sensing pole includes a plurality of sensing lines; and the shielding line region includes a plurality of shielding lines.
  • Each of the first driving line, the second driving line, the sensing line, and the shielding line is an aggregate of a plurality of mesh sides.
  • the first driving line, the second driving line, the sensing line, and the shielding line are slightly disconnected between the sides of the grid to achieve electrical separation.
  • the distance between the adjacent first driving line, the second driving line, the sensing line, and the shielding line of the metal conductive mesh layer is below 100 ⁇ m to generate enough mesh to facilitate the driving line region, The division of the sensing line area and the formation of mutual capacitance.
  • a mutual capacitance is formed between the first driving electrode and the sensing electrode.
  • the mutual capacitance is realized between the first driving electrode and the sensing electrode through the interdigitated structure.
  • the shape of each of the grid cells is a diamond.
  • the thickness of the metal conductive mesh layer is on the order of 0.1.
  • the invention provides a mutual capacitance multi-touch electrode structure based on a single-layer metal grid, which realizes uniformity of overall transmittance of the touch screen by uniform mesh layout, and passes through the metal grid lines. Partitioning is used to differentiate the drive line area from the sense line area.
  • the present invention makes the drive line wiring area narrower by designing a tighter metal mesh to narrow the dead zone and thereby reduce the linearity fluctuation of the single layer mutual capacitance structure.
  • FIG. 1 is a schematic structural view of a conventional single-layer multi-touch panel based on a transparent conductive film;
  • FIG. 2 is a partial schematic view showing the structure of the single-layer multi-touch panel of FIG.
  • FIG. 3 is a schematic diagram of the influence of the touch sensing blind zone on the position calculation of the touch object in FIG. Figure
  • Figure 4 is a graph showing the linearity deviation of the test corresponding to the diagonal line in Figure 3;
  • FIG. 5a is a schematic diagram of a conventional diamond-shaped metal grid touch electrode
  • FIG. 5b is a schematic diagram of a conventional hexagonal metal grid touch electrode
  • FIG. 6a is a schematic structural view of a conventional metal mesh GFF touch panel based on a thin film material
  • FIG. 6b is a schematic structural view of a conventional metal mesh GF2 touch panel based on a thin film material
  • FIG. 7 is a single layer metal mesh according to the present invention. Schematic diagram of the structure of the mutual capacitance multi-touch electrode structure of the grid;
  • Figure 8 is a comparison of linearity fluctuations of the present invention with a single layer ITO technique. detailed description
  • FIG. 7 is a schematic diagram of a structure of a mutual capacitance multi-touch electrode structure based on a single-layer metal grid according to the present invention.
  • the method includes: a metal conductive mesh layer; the metal conductive mesh layer includes a plurality of driving line regions 1, a plurality of sensing line regions 2, and a plurality of shielding line regions 3; the driving line region 1 is located in the shielding line region 3 a side, the sensing line area 2 is located on the other side of the shield line area 3; the driving line area 1, the sensing line area 2, and the shield line area 3 respectively have a plurality of grid units 10, And the grid cells 10 in each region are electrically connected to each other, and the adjacent grid cells 10 in the adjacent regions are electrically connected to each other; the grid cells 10 include a plurality of mesh edges and are connected by adjacent grid edges Formed node
  • the driving line region 1 includes a plurality of first driving electrodes 11 and a plurality of second driving electrodes 12, the first driving pole 11 includes a plurality of first driving lines 13, and the second driving pole 12 includes a plurality of a second driving line 14;
  • the sensing line area 2 includes a plurality of sensing poles 20, the sensing pole 20 includes a plurality of sensing lines 22;
  • the shielding line area 3 includes a plurality of shielding lines 30;
  • Each of the first driving line 13 , the second driving line 14 , the sensing line 22 , and the shielding line 30 is an aggregate of a plurality of mesh sides; the first driving line 13 , the second driving line 14 , and the sensing Electrical separation is achieved between the wire 22 and the shield wire 30 by a slight break between the mesh edges.
  • each of the mesh cells 10 of the metal conductive mesh layer has a diamond shape, and other shapes of mesh cells, such as a rectangle, a triangle, a hexagon, etc., may also be used;
  • the distance between the adjacent first driving line 13, the second driving line 14, the sensing line 22, and the shielding line 30 of the metal conductive mesh layer must be small (100 um or less) to generate enough nets
  • the grid facilitates the division of the drive line area and the sensing line area and the formation of mutual capacitance.
  • a mutual capacitance is formed between the first driving electrode 11 and the sensing electrode 20.
  • the thickness of the metal conductive mesh layer only needs to be of the order of O. lum.
  • Metal conduction The spacing between the adjacent first driving line 13, the second driving line 14, the sensing line 22, and the shielding line 30 of the mesh layer is small, and a large number of insertions are made between the first driving pole 11 and the sensing pole 20 Refers to the structure to achieve sufficient mutual capacitance, so there is no need to increase the thickness of the metal conductive mesh layer to increase mutual capacitance.
  • a smaller sensor pitch can be achieved as long as the metal grid lines are dense enough and the blind areas can be narrower.
  • FIG. 8 is a comparison diagram of the linearity fluctuation of the present invention and the single layer ITO technology, wherein the left side of FIG. 8 is a linearity fluctuation diagram using a single layer ITO technology, and the right side is a linearity fluctuation diagram using the present invention.
  • the mutual capacitance multi-touch electrode structure based on the single-layer metal mesh of the present invention can effectively reduce the linearity fluctuation.
  • the present invention provides a mutual-capacitance multi-touch electrode structure based on a single-layer metal grid, which achieves uniformity of overall transmittance of the touch screen by uniform mesh layout, and partitions the metal grid lines. To distinguish between the drive line area and the sense line area.
  • the present invention makes the drive line wiring area narrower by designing a tighter metal mesh to narrow the dead zone and thereby reduce the linearity fluctuation of the single layer mutual capacitance structure.

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)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种基于单层金属网格的互电容多点触控电极结构，包括：金属导电网格层；所述金属导电网格层包括数个驱动线区域（1）、数个感测线区域（2）、及数个屏蔽线区域（3）；所述驱动线区域（1）位于屏蔽线区域（3）一侧，所述感测线区域（2）位于屏蔽线区域（3）的另一侧；所述驱动线区域（1）、感测线区域（2）、及屏蔽线区域（3）内分别具有数个网格单元（10），且每一个区域内的网格单元（10）相互电连接，相邻区域的相邻网格单元（10）相互电连接；所述网格单元（10）包括数条网格边及由相邻两网格边相接形成的结点。通过对金属网格线分区来实现驱动线区域与感测线区域的区分，并通过设计更紧密的金属网格，来使得驱动线布线区域更窄，以减窄盲区，进而减小单层互电容结构的线性度波动。

Description

基于单层金属网格的互电容多点触控电极结构 技术领域
本发明涉及显示技术领域，尤其涉及一种基于单层金属网格的互电容 多点触控电极结构。 背景技术
与单点触控面板相比，多点触控面板可以两个手指或多个手指甚至多 个人同时操作，操作更方便、 更人性化。 近年来发展起来的单层多点触控 面板，不仅具有一般多点触控面板的优点，而且其厚度较小，有利于触控 电子产品往轻、 薄化的方向发展。
请参阅图 1 ,为传统基于透明导电膜的单层多点触控面板结构示意图。 由图 1可以看出，传统的单层多点触控面板导电结构的所有驱动极和感测 极都需要一条电极线 100从可视区引出，且都从同一端引线，导致可视区 内的电极引线 100占据较大面积。请参阅图 2并结合图 1 ,图 2为图 1的单 层多点触控面板结构局部位置 200对应的结构示意图。 传统的单层 ( Single Layer )触控面板（ Touch Panel )中的所有的驱动极线路 101均设置于感测 极线路 102的同一侧，以实现单层多点触控功能。 在实践中，由于传统的 单层触控面板中的氧化铟锡（ Indium Tin Oxide , ΙΤΟ )的阻抗较大，因此驱 动极线路（走线） 101无法做的很细，从而无法做窄盲区，也就是说，驱动 极线路 101具有较宽的宽度，这会导致驱动极线路（走线） 101占据了该单 层触控面板中的较大面积，导致触控出现互电容盲区，触控的连续性被破 坏。 触控感测有效区 201的面积会相对地减小，触控感测盲区 202的面积 则会相对地增加。 触控感测盲区 202的存在会使得针对触摸物体的定位计 算中的权重计算出现较大的偏差，原因是当触摸物体从一个触控感测单元 移动到另一个触控感测单元中时，较宽的（面积较大 )盲区 202会使得触 摸物体无法立即覆盖到另一个触控感测单元，因此，在进行权重计算时无 法实现平稳的过渡，在进行定位计算时会偏向前一个触控感测单元。
请参阅图 3 ,为图 1中由于触控感测盲区对触摸物体的位置计算的影响 的示意图。 在触摸物体的运动路径 301 中，当触摸物体位于触控感测有效 区 201 时，传统的单层触控面板能够计算得出较多的定位点，而当触摸物 体位于触控感测盲区 202时，传统的单层触控面板能够计算得出较多的定 位点较少，因此，该运动路径 301在触控感测有效区 201和触控感测盲区 202之间的过渡不平稳。 请参阅图 4 ,为图 3中对角线所对应的测试的线性 度偏差曲线图，其中系列 1为单层结构（ single ITO , SITO )触控面板左上 角至右下角对角线上的线性度偏差曲线，系列 2为单层结构触控面板右上 角至左下角对角线上的线性度偏差曲线，由图 4可见，传统的单层触控面 板的线性度波动较大。
目前，触摸面板的导电层主要是以氧化铟锡化合物通过真空镀膜、 图 形化蚀刻的工艺形成于绝缘基材上，其不仅对工艺、 设备要求较高，还在 蚀刻中浪费大量的氧化铟锡化合物材料，以及产生大量的含重金属的工业 废液；同时，氧化铟锡化合物中的金属铟（ In )是一种稀有资源，造成触控 面板的成本较高。 为了有效降低触控面板的成本，同时满足终端消费性电 子产品轻薄化巿场趋势，近年来发展了一种金属网格触摸屏技术（ Metal Mesh TP ) ,其感应层的导电层用金属网格替代氧化铟锡化合物做成触控电 极，并使用双层结构，一层做驱动极，另一层做感测极，这两层的金属网 格之间形成互电容。 请参阅图 5a及图 5b ,图 5a为现有的菱形金属网格触 控电极示意图，图 5b为现有的六边形金属网格触控电极示意图。 金属网格 触摸屏的触控电极中采用的双层结构驱动极与感测极可以均是大小相同的 菱形金属网格电极；也可以驱动极与感测极均是大小相同的六边形金属网 格电极。
请参阅图 6a ,为现有的基于薄膜（ Film )材料的金属网格 GFF ( Glass-Film-Film ¾虫控面板结构示意图，包括玻璃盖板 601( Cover Glass )、 金属网格导电膜 602、 第一触控薄膜层 603、 及第二触控薄膜层 604。 GFF 结构的触摸屏由于仅有两层导电薄膜，使其成本、 厚度、 重量均得到了大 幅度的改善，但其制作工艺中不可操控性因素多，造成产品良率低、 性能 差。 GFF技术进化方向是 GF ,即将原来用于实现触控感应的两层薄膜减为 一层，基于上感应层的设计位置不同， GF又衍生出两种方案 GIF和 GF2 , 该 GIF和 GF2结构将 GFF原来用于实现触控感应的两层薄膜减为一层厚 度更低。 请参阅图 6b ,为现有的基于薄膜材料的金属网格 GF2触控面板结 构示意图，包括：玻璃盖板 601、金属网格导电膜 602、 及触控薄膜层 605。 由图 6a、 6b比较可知，金属网格 GF2触控结构比 GFF触控结构更轻薄， 有益于降低生产成本，且可以做成窄边框的触摸屏。 发明内容
本发明的目的在于提供一种基于单层金属网格的互电容多点触控电极 结构，可以减窄盲区，进而减小单层互电容结构的线性度波动。
为实现上述目的，本发明提供一种基于单层金属网格的互电容多点触 控电极结构，包括：金属导电网格层；所述金属导电网格层包括数个驱动 线区域、 数个感测线区域、 及数个屏蔽线区域；所述驱动线区域位于屏蔽 线区域一侧，所述感测线区域位于屏蔽线区域的另一侧；所述驱动线区域、 感测线区域、 及屏蔽线区域内分别具有数个网格单元，且每一个区域内的 网格单元相互电连接，相邻区域的相邻网格单元相互电连接；所述网格单 元包括数条网格边及由相邻两网格边相接形成的结点。
所述驱动线区域包括：数个第一驱动极及数个第二驱动极，所述第一 驱动极包括数条第一驱动线，所述第二驱动极包括数条第二驱动线；所述 感测线区域包括数个感测极，所述感测极包括数条感测线；所述屏蔽线区 域包括数条屏蔽线。
所述每一第一驱动线、 第二驱动线、 感测线、 及屏蔽线都是数个网格 边的集合体。
所述第一驱动线、 第二驱动线、 感测线、 及屏蔽线之间通过网格边之 间进行微小的断开以实现电学分离。
所述金属导电网格层的相邻的第一驱动线、 第二驱动线、 感测线、 及 屏蔽线之间的距离在 lOOum以下，以产生足够多的网格，便于进行驱动线 区域、 感测线区域的划分及互电容的形成。
所述第一驱动极与感测极之间形成互电容。
所述第一驱动极与感测极之间通过插指结构来实现互电容。 所述每个网格单元的形状为菱形。
所述金属导电网格层的厚度为 0.1画的量级。
本发明的有益效果：本发明提供一种基于单层金属网格的互电容多点 触控电极结构，通过均匀的网格式布线实现触摸屏整体透光率的一致性， 并通过对金属网格线分区来实现驱动线区域与感测线区域的区分。 本发明 通过设计更紧密的金属网格，来使得驱动线布线区域更窄，以减窄盲区， 进而减小单层互电容结构的线性度波动。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本 发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发 明加以限制。 附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为传统基于透明导电膜的单层多点触控面板结构示意图； 图 2为图 1的单层多点触控面板结构局部示意图；
图 3为图 1中由于触控感测盲区对触摸物体的位置计算的影响的示意 图；
图 4为图 3中对角线所对应的测试的线性度偏差曲线图；
图 5a为现有的菱形金属网格触控电极示意图；
图 5b为现有的六边形金属网格触控电极示意图；
图 6a为现有的基于薄膜材料的金属网格 GFF触控面板结构示意图； 图 6b为现有的基于薄膜材料的金属网格 GF2触控面板结构示意图； 图 7为本发明基于单层金属网格的互电容多点触控电极结构分区示意 图；
图 8为本发明与单层 ITO技术的线性度波动对比图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 7 ,为本发明基于单层金属网格的互电容多点触控电极结构分 区示意图。 包括：金属导电网格层；所述金属导电网格层包括数个驱动线 区域 1、 数个感测线区域 2、 及数个屏蔽线区域 3；所述驱动线区域 1位于 屏蔽线区域 3—侧，所述感测线区域 2位于屏蔽线区域 3的另一侧；所述 驱动线区域 1、感测线区域 2、及屏蔽线区域 3内分别具有数个网格单元 10 , 且每一个区域内的网格单元 10相互电连接，相邻区域的相邻网格单元 10 相互电连接；所述网格单元 10包括数条网格边及由相邻两网格边相接形成 的结点；
所述驱动线区域 1包括：数个第一驱动极 11及数个第二驱动极 12 ,所 述第一驱动极 11包括数条第一驱动线 13 ,所述第二驱动极 12包括数条第 二驱动线 14；所述感测线区域 2包括数个感测极 20 ,所述感测极 20包括 数条感测线 22；所述屏蔽线区域 3包括数条屏蔽线 30；所述每一第一驱动 线 13、第二驱动线 14、感测线 22、及屏蔽线 30都是数个网格边的集合体； 所述第一驱动线 13、 第二驱动线 14、 感测线 22、 及屏蔽线 30之间通过网 格边之间进行微小的断开以实现电学分离。
本实施例中，所述金属导电网格层的每个网格单元 10为菱形，也可以 采用其它形状的网格单元，例如长方形、 三角形、 六边形等；
所述金属导电网格层的相邻的第一驱动线 13、 第二驱动线 14、 感测线 22、 及屏蔽线 30之间的距离必须较小 ( lOOum以下 ) ,以产生足够多的网 格，便于进行驱动线区域与感测线区域的划分及互电容的形成。
所述第一驱动极 11与感测极 20之间形成互电容。
所述金属导电网格层的厚度只需要 O. lum的量级即可。 由于金属导电 网格层的相邻的第一驱动线 13、 第二驱动线 14、 感测线 22、 及屏蔽线 30 之间的间距小，第一驱动极 11与感测极 20之间通过大量的插指结构来实 现足够的互电容，因此，无需增加金属导电网格层厚度来增大互电容。
可以实现更小的感测线间距（ Sensor pitch ) ,只要金属网格线够密集即 可，同时盲区也可以更窄。
请参阅图 8 ,为本发明与单层 ITO技术的线性度波动对比图，其中图 8 的左侧为采用单层 ITO技术的线性度波动图，右侧为采用本发明的线性度 波动图。 由图 8可知，采用本发明的基于单层金属网格的互电容多点触控 电极结构，可以有效减小线性度波动。
综上所述，本发明提供一种基于单层金属网格的互电容多点触控电极 结构，通过均匀的网格式布线实现触摸屏整体透光率的一致性，并通过对 金属网格线分区来实现驱动线区域与感测线区域的区分。 本发明通过设计 更紧密的金属网格，来使得驱动线布线区域更窄，以减窄盲区，进而减小 单层互电容结构的线性度波动。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形 都应属于本发明后附的权利要求的保护范围。

Claims

杈 利 要 求
1、 一种基于单层金属网格的互电容多点触控电极结构，包括：金属导 电网格层；所述金属导电网格层包括数个驱动线区域、 数个感测线区域、 及数个屏蔽线区域；所述驱动线区域位于屏蔽线区域一侧，所述感测线区 域位于屏蔽线区域的另一侧；所述驱动线区域、 感测线区域、 及屏蔽线区 域内分别具有数个网格单元，且每一个区域内的网格单元相互电连接，相 邻区域的相邻网格单元相互电连接；所述网格单元包括数条网格边及由相 邻两网格边相接形成的结点。
2、如权利要求 1所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述驱动线区域包括：数个第一驱动极及数个第二驱动极，所述第 一驱动极包括数条第一驱动线，所述第二驱动极包括数条第二驱动线；所 述感测线区域包括数个感测极，所述感测极包括数条感测线；所述屏蔽线 区域包括数条屏蔽线。
3、如权利要求 2所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述每一第一驱动线、 第二驱动线、 感测线、 及屏蔽线都是数个网 格边的集合体。
4、如权利要求 3所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述第一驱动线、 第二驱动线、 感测线、 及屏蔽线之间通过网格边 之间进行微小的断开以实现电学分离。
5、如权利要求 4所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述相邻的第一驱动线、 第二驱动线、 感测线、 及屏蔽线之间的距 离在 lOOum以下，以产生足够多的网格，便于进行驱动线区域与感测线区 域的划分及互电容的形成。
6、如权利要求 1所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述第一驱动极与感测极之间形成互电容。
7、如权利要求 6所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述第一驱动极与感测极之间通过插指结构来实现互电容。
8、如权利要求 1所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述每个网格单元的形状为菱形。
9、如权利要求 1所述的基于单层金属网格的互电容多点触控电极结构， 其中，所述金属导电网格层的厚度为 0.1画的量级。
10、 一种基于单层金属网格的互电容多点触控电极结构，包括：金属 导电网格层；所述金属导电网格层包括数个驱动线区域、 数个感测线区域、 及数个屏蔽线区域；所述驱动线区域位于屏蔽线区域一侧，所述感测线区 域位于屏蔽线区域的另一侧；所述驱动线区域、 感测线区域、 及屏蔽线区 域内分别具有数个网格单元，且每一个区域内的网格单元相互电连接，相 邻区域的相邻网格单元相互电连接；所述网格单元包括数条网格边及由相 邻两网格边相接形成的结点；
其中，所述驱动线区域包括：数个第一驱动极及数个第二驱动极，所 述第一驱动极包括数条第一驱动线，所述第二驱动极包括数条第二驱动线； 所述感测线区域包括数个感测极，所述感测极包括数条感测线；所述屏蔽 线区域包括数条屏蔽线；
其中，所述每一第一驱动线、 第二驱动线、 感测线、 及屏蔽线都是数 个网格边的集合体；
其中，所述第一驱动线、 第二驱动线、 感测线、 及屏蔽线之间通过网 格边之间进行微小的断开以实现电学分离；
其中，所述相邻的第一驱动线、 第二驱动线、 感测线、 及屏蔽线之间 的距离在 lOOum以下，以产生足够多的网格，便于进行驱动线区域与感测 线区域的划分及互电容的形成；
其中，所述第一驱动极与感测极之间形成互电容；
其中，所述第一驱动极与感测极之间通过插指结构来实现互电容； 其中，所述每个网格单元的形状为菱形； 其中，所述金属导电网格层的厚度为 0.1讓的量级。
PCT/CN2014/082531 2014-07-03 2014-07-18 基于单层金属网格的互电容多点触控电极结构 Ceased WO2016000281A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/390,384 US20160291717A1 (en) 2014-07-03 2014-07-18 Mutual capacitance multi-touch control electrode structure using single layer metal mesh

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410315426.6A CN104063108B (zh) 2014-07-03 2014-07-03 基于单层金属网格的互电容多点触控电极结构
CN201410315426.6 2014-07-03

Publications (1)

Publication Number Publication Date
WO2016000281A1 true WO2016000281A1 (zh) 2016-01-07

Family

ID=51550849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/082531 Ceased WO2016000281A1 (zh) 2014-07-03 2014-07-18 基于单层金属网格的互电容多点触控电极结构

Country Status (3)

Country Link
US (1) US20160291717A1 (zh)
CN (1) CN104063108B (zh)
WO (1) WO2016000281A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10429974B2 (en) 2016-09-23 2019-10-01 Apple Inc. Touch sensor panel with top and/or bottom shielding
US11460964B2 (en) 2011-10-20 2022-10-04 Apple Inc. Opaque thin film passivation
US12321559B1 (en) 2022-02-09 2025-06-03 Apple Inc. Flexible touch sensor panel with metal mesh and solid conductor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104536626B (zh) * 2014-12-22 2017-07-18 深圳市华星光电技术有限公司 一种触控面板以及显示装置
KR102456121B1 (ko) * 2015-12-15 2022-10-17 엘지디스플레이 주식회사 광 제어 장치, 그를 포함한 투명표시장치, 및 그의 제조방법
CN108182014A (zh) * 2018-03-20 2018-06-19 江西蓝沛泰和新材料有限公司 导电膜的t形结构图案线路、导电膜及触控面板
CN108845694B (zh) * 2018-06-06 2021-07-30 业成科技（成都）有限公司 金属网格触控模组
CN108710453B (zh) * 2018-06-26 2020-09-11 北京集创北方科技股份有限公司 一种触控面板、电子设备和信息处理方法
CN109213390B (zh) * 2018-07-26 2020-08-07 武汉华星光电技术有限公司 增大互容的触控屏金属网格结构
JP7203576B2 (ja) * 2018-11-08 2023-01-13 株式会社ジャパンディスプレイ 表示装置及びタッチ検出装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943975A (zh) * 2009-07-09 2011-01-12 敦泰科技有限公司 超薄型互电容触摸屏及组合式超薄型触摸屏
CN102081484A (zh) * 2009-11-30 2011-06-01 上海天马微电子有限公司 电容式触摸感应装置及其形成方法、触摸显示装置
CN102214049A (zh) * 2010-04-09 2011-10-12 上海天马微电子有限公司 电容式触摸感应装置
CN102402354A (zh) * 2010-09-10 2012-04-04 敦泰科技有限公司 具有网状电极的电容式触摸屏
CN103105990A (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
CN203276249U (zh) * 2013-05-24 2013-11-06 苏州欧菲光科技有限公司 触控面板
US20140028626A1 (en) * 2011-04-13 2014-01-30 Sharp Kabushiki Kaisha Touch panel and display device provided with same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090194344A1 (en) * 2008-01-31 2009-08-06 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single Layer Mutual Capacitance Sensing Systems, Device, Components and Methods
US8576193B2 (en) * 2008-04-25 2013-11-05 Apple Inc. Brick layout and stackup for a touch screen
US9952737B2 (en) * 2011-02-24 2018-04-24 Parade Technologies, Ltd. Single layer touch sensor
KR20120138288A (ko) * 2011-06-14 2012-12-26 삼성전기주식회사 정전용량방식 터치패널
CN102799328B (zh) * 2012-07-20 2016-03-09 南昌欧菲光科技有限公司 一种单层多点电容式触摸屏
US20140104221A1 (en) * 2012-10-11 2014-04-17 Maxim Integrated Products, Inc. Capacitive touch panel sensor for mitigating effects of a floating condition
US9383781B2 (en) * 2013-08-06 2016-07-05 Samsung Electro-Mechanics Co., Ltd. Touch sensor
CN203573282U (zh) * 2013-11-13 2014-04-30 深圳市汇顶科技股份有限公司 采用金属网格式电极的单层二维触摸传感器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943975A (zh) * 2009-07-09 2011-01-12 敦泰科技有限公司 超薄型互电容触摸屏及组合式超薄型触摸屏
CN102081484A (zh) * 2009-11-30 2011-06-01 上海天马微电子有限公司 电容式触摸感应装置及其形成方法、触摸显示装置
CN102214049A (zh) * 2010-04-09 2011-10-12 上海天马微电子有限公司 电容式触摸感应装置
CN102402354A (zh) * 2010-09-10 2012-04-04 敦泰科技有限公司 具有网状电极的电容式触摸屏
US20140028626A1 (en) * 2011-04-13 2014-01-30 Sharp Kabushiki Kaisha Touch panel and display device provided with same
CN103105990A (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
CN203276249U (zh) * 2013-05-24 2013-11-06 苏州欧菲光科技有限公司 触控面板

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11460964B2 (en) 2011-10-20 2022-10-04 Apple Inc. Opaque thin film passivation
US10429974B2 (en) 2016-09-23 2019-10-01 Apple Inc. Touch sensor panel with top and/or bottom shielding
US10955978B2 (en) 2016-09-23 2021-03-23 Apple Inc. Touch sensor panel with top and/or bottom shielding
US12321559B1 (en) 2022-02-09 2025-06-03 Apple Inc. Flexible touch sensor panel with metal mesh and solid conductor

Also Published As

Publication number Publication date
CN104063108A (zh) 2014-09-24
US20160291717A1 (en) 2016-10-06
CN104063108B (zh) 2017-04-05

Similar Documents

Publication Publication Date Title
WO2016000281A1 (zh) 基于单层金属网格的互电容多点触控电极结构
CN101943975B (zh) 超薄型互电容触摸屏及组合式超薄型触摸屏
JP3189744U (ja) 網目状の合金タッチ電極を有するタッチパネル
CN102799301B (zh) 触控面板的电极结构、制造方法以及触控面板
US20140092519A1 (en) Touch panel, touch display device and method for manufacturing the touch panel
US20160062518A1 (en) Touch substrate and fabricating method thereof, and touch display apparatus
CN105549801A (zh) 一种电容触摸屏及其双层电极结构
JP2015515709A (ja) タッチスクリーンセンシングモジュール及びその製造方法と表示装置
CN103092411A (zh) 一种触摸屏及其制作方法、显示装置
CN102073431A (zh) 一种电容式触摸屏的触控面板及其制造方法
CN104932765A (zh) 一种电容触摸屏及其制备方法、触控装置
CN106293216A (zh) 一种触控基板及其制备方法、显示装置
US9058083B2 (en) Touch sensing structure and method for making the same
CN105353931A (zh) 触摸屏及其制作方法、显示器件
TWM484145U (zh) 觸控面板
CN105786260B (zh) 一种触摸屏及显示装置
CN103984435A (zh) 可缩减边框区的触控面板
WO2022217569A1 (zh) 触控基板及其制造方法、触控装置
WO2015196606A1 (zh) 触摸屏及其制作方法、显示装置
JP3193151U (ja) タッチパネル
CN203084688U (zh) 一种触摸屏及显示装置
TWI459252B (zh) 觸控式感應元件及導電電極結構
TWI659347B (zh) 具有輔助線的觸控電極
CN202189340U (zh) 触控面板的电极结构以及触控面板
CN205121523U (zh) 触摸屏及显示器件

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14390384

Country of ref document: US

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

Ref document number: 14896808

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: 14896808

Country of ref document: EP

Kind code of ref document: A1