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WO2020113778A1 - 触控电极单元、触控面板及触控显示器 - Google Patents

触控电极单元、触控面板及触控显示器 Download PDF

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Publication number
WO2020113778A1
WO2020113778A1 PCT/CN2019/071566 CN2019071566W WO2020113778A1 WO 2020113778 A1 WO2020113778 A1 WO 2020113778A1 CN 2019071566 W CN2019071566 W CN 2019071566W WO 2020113778 A1 WO2020113778 A1 WO 2020113778A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
touch electrode
electrode unit
islands
trunk
Prior art date
Application number
PCT/CN2019/071566
Other languages
English (en)
French (fr)
Inventor
冯校亮
Original Assignee
武汉华星光电半导体显示技术有限公司
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/485,436 priority Critical patent/US20210405822A1/en
Publication of WO2020113778A1 publication Critical patent/WO2020113778A1/zh

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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
    • 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
    • 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
    • G06F3/0443—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; 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
    • G06F3/0446—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

Definitions

  • the invention relates to a capacitive touch element, in particular to a touch electrode unit, a touch panel and a touch display.
  • touch technology has become an important function of display products. As the display accuracy becomes higher and higher, the requirements for touch technology are gradually increased. Taking projected capacitive touch technology as an example, it can be divided into self-capacitance and mutual capacitance.
  • the touch electrode structure is formed by a staggered array of a plurality of driving electrodes connected in series and a plurality of sensing electrodes connected in series.
  • the driving electrode at the touch point and the sensing electrodes are generated Mutual inductance capacitance changes, the capacitance of the touch point can be obtained by scanning the capacitance change amount of the two-dimensional plane of the display.
  • the mutual inductance capacitance of the traditional touch electrode pattern is relatively large.
  • the mutual inductance capacitance takes a long time to charge and discharge, resulting in insufficient touch response and resulting in poor touch experience.
  • the invention provides a touch electrode unit, a touch panel and a touch display to solve the above-mentioned problems existing in the prior art.
  • An aspect of the present invention provides a touch electrode unit, including: at least one main line; several islands, evenly distributed around at least one of the two sides of the main line; and several A thin spur line connecting the plurality of islands to each other, and connecting the island section adjacent to the trunk line to the trunk line, the thin branch line, the island section and the trunk line Several hollows are formed between them.
  • the number of the trunk lines is two or more, and the two or more trunk lines cross each other at a central point.
  • the number of the trunk lines is two.
  • the two trunk lines extend in two directions perpendicular to each other.
  • the two trunk lines cross at the center point to define four layout areas. The several islands are evenly distributed in the layout area.
  • each of the plurality of thin branch lines extends in one of the two directions.
  • each layout area is a triangular layout area
  • the triangular layout area has a right angle
  • a right angle of the triangular layout area faces the center point.
  • the islands are scattered in an array in the triangular layout area.
  • the number of the islands arranged along one of the two directions gradually decreases away from the center point in the other of the two directions.
  • the islands form a solid block of regular polygons.
  • the island-shaped portion forms a regular quadrangular shape and has four right angles, and at least one of the two ends of the thin spur is connected between two adjacent right angles of the island-shaped portion.
  • a length of each of the four sides of the island forming the regular quadrilateral is greater than a width of the thin branch, and the width of the thin branch is smaller than a width of the main line .
  • the main line, the island, and the thin branch line are formed of a transparent conductive material.
  • a touch panel including a plurality of touch electrode units as described above.
  • the plurality of touch electrode units are connected in series to form a plurality of first electrode strings and a plurality of second electrode strings.
  • the plurality of first electrode strings are juxtaposed along a first direction
  • the plurality of second electrode strings are juxtaposed along a second direction perpendicular to the first direction
  • the touch electrode unit in the first electrode string is
  • the touch electrode units in the second electrode string are staggered and insulated from each other;
  • the touch electrode unit includes:
  • At least one main line At least one main line
  • a plurality of thin spurs connecting the plurality of islands to each other, and connecting islands adjacent to the trunk to the trunk, the thin spurs, the islands, and the main Several hollows are formed between the trunk lines.
  • the number of the trunk lines is two or more, and the two or more trunk lines cross each other at a central point.
  • the number of the trunk lines is two.
  • the two trunk lines extend in two directions perpendicular to each other.
  • the two trunk lines cross at the center point to define four layout areas. The several islands are evenly distributed in the layout area.
  • each of the plurality of thin branch lines extends in one of the two directions.
  • each layout area is a triangular layout area
  • the triangular layout area has a right angle
  • a right angle of the triangular layout area faces the center point.
  • the islands are scattered in an array in the triangular layout area.
  • the number of the islands arranged along one of the two directions gradually decreases away from the center point in the other of the two directions.
  • the islands form a solid block of regular polygons.
  • Yet another aspect of the present invention provides a touch display, including the touch panel as described above.
  • the touch electrode unit, the touch panel and the touch display of the present invention form a large number and evenly distributed hollow portions between the thin branch line, the island-shaped portion and the main line, It can effectively reduce the contact area of the touch electrode unit, make the mutual inductance capacitance during the touch process smaller, and thus shorten the charge and discharge response time during the touch process, effectively improve the response speed of the touch process, thereby optimizing the touch touch Experience degree.
  • FIG. 1 is a schematic plan view of a touch electrode unit connected in series to form a plurality of electrode strings according to an embodiment of the invention.
  • FIG. 2 is a schematic diagram of the electrode string in FIG. 1 shown at an oblique upper view to illustrate the mutual inductance capacitance.
  • FIG. 3 is a schematic diagram of an electrode string formed by a series of touch electrode units without hollowed-out portions at an oblique upper view to illustrate mutual inductance capacitance.
  • 4a is a schematic diagram of the touch response time of the mutual inductance capacitor in FIG. 3.
  • 4b is a schematic diagram of the touch response time of the mutual inductance capacitor in FIG. 2.
  • a touch electrode unit may include at least one trunk line 1; several islands 2 are evenly distributed on at least one of the two sides of the trunk line 1 Around the edge; and several thin spurs 3, connecting the several islands 2 to each other, and connecting the island 2 adjacent to the trunk 1 to the trunk 1, the thin spurs 3.
  • Several hollows 4 are formed between the island 2 and the main line 1.
  • the trunk line 1, the island 2 and the thin branch line 3 may be formed of a transparent conductive material (such as ITO, etc.).
  • the main line 1 may be one, and the islands 2 may be evenly distributed around one side or two sides of the main line 1, the two sides Between the two ends of the trunk line 1; in addition, the number of the trunk lines 1 may also be two or more, and the two or more trunk lines 1 may also be at a central point E Cross each other.
  • the following two trunk lines 1 will be used as examples, but not limited to this.
  • each layout area T may be a triangular layout area, the triangular layout area has a right angle, and the right angle of the triangular layout area is toward the center point E, so that the trunk line 1
  • the distribution area of the island-shaped portion 2 and the thin branch line 3 can form a diamond-shaped area, so as to improve the density of the staggered arrangement of the touch electrode units.
  • the several islands 2 can be evenly distributed in the triangular layout area T; each thin branch line 3 extends in one of the two directions X, Y, so that the thin A plurality of hollow portions 4 are formed between the branch line 3, the island-shaped portion 2 and the trunk line 1. Therefore, the area of the touch electrode unit is greatly reduced, and the shape of the hollow portion 4 may be different according to the location, for example, forming a convex shape or a cross shape.
  • the islands 2 are arrayed in the layout area T, for example, the islands 2 can be arranged to form rows and columns, wherein the row spacing and the columns The distance may be the same to be evenly arranged in the layout area T. Therefore, the area to be touched can be effectively reduced without reducing the overall touch range.
  • the island-shaped portion 2 may form a solid block of a regular polygon, such as a solid block of a regular quadrilateral, regular octagon, etc.
  • the number of edges of the regular polygon may be a multiple of four, to facilitate
  • the island 2 is connected to the thin branch 3.
  • the island 2 forming the regular quadrilateral may have four right angles, and at least one of the two ends of the thin branch line 3 is connected to the neighbor of the island 2 Between two right angles. Therefore, it is possible to effectively maintain the touch effect without being affected when the contacted area is reduced.
  • the number of the islands 2 arranged along one of the two directions X, Y is in the other of the two directions X, Y (such as direction Y)
  • the upper part gradually decreases away from the center point E; taking the upper touch electrode unit A1 in FIG. 1 as an example, in the upper right layout area T defined by the two main lines 1, the island-shaped portion 2 is along
  • the number of arrays in direction X gradually decreases from 4 to 3, 2 and 1 away from the center point E in direction Y. Therefore, the uniformity of the distribution of the island-shaped portion 2 and the hollow portion 4 can be effectively improved.
  • a length of each of the four sides of the island 2 is greater than a width of the thin spur 3, and the width of the thin spur 3 is less than a width of the trunk 1 width. Therefore, the spreading area of the hollow portion 4 can be effectively enlarged to reduce the contact area of the touch electrode unit and maintain the touch effect unaffected.
  • the above-mentioned touch electrode units can be connected in series to form a plurality of electrode strings for application to a touch panel.
  • the following is an example, but not limited thereto.
  • the touch panel may include a plurality of touch electrode units as described above, and the plurality of touch electrode units may be connected in series to form a plurality of first electrode strings A and a plurality of second electrode strings B.
  • Each of the first electrode strings A may include a plurality of touch electrode units A1, and adjacent two touch electrode units A1 may be connected in series by a connecting member A2 (such as ITO).
  • the second electrode strings B A plurality of touch electrode units B1 may be included, and a conductive member B2 (such as ITO) may be connected in series between two adjacent touch electrode units B1.
  • the plurality of first electrode strings A may be juxtaposed along a first direction
  • the plurality of second electrode strings B may be juxtaposed along a second direction perpendicular to the first direction.
  • the touch electrode units A1 and the touch electrode units B1 in the second electrode string B are staggered and insulated from each other.
  • the touch electrode unit A1 and the touch electrode unit B1 can be disposed on the same plane to prepare a single layer (ITO) mutual capacitance touch panel, located on the touch
  • ITO single layer
  • the touch panel can also be applied to a touch display.
  • the touch display can include the touch panel as described above, and can also include a display panel (such as an LCD or OLED panel).
  • the following uses a series of electrodes formed by a series of touch electrode units without hollows as a comparison object.
  • a total mutual inductance capacitance between two adjacent touch electrode units A1 and B1 can be a plurality of local mutual inductance capacitances (such as C 1 , C 2 , C 3, C 4) composed of energization during operation, having a mutual capacitance can be reduced between the touch electrode unit A1 and B1 of the hollow section 4.
  • the touch electrode units P1 and K1 are connected in series by the guide members P2 and K2, respectively, and the touch electrode units P1 and K1 fill one With a diamond-shaped area (that is, without hollows), the overall area of the touch electrode units P1 and K1 is large, and the mutual inductance capacitance C between the touch electrode units P1 and K1 is also large.
  • the touch response time ⁇ r1 and ⁇ of the touch electrode units P1 and K1 without the cutouts are significantly shorter. Therefore, the above-mentioned uniformly spreading the touch electrode units A1, B1 of the hollow portion 4 can effectively improve the response speed of the touch process, thereby optimizing the touch experience of touch.
  • the touch electrode unit, the touch panel and the touch display of the above-mentioned embodiments of the present invention form a large number of large-area and uniformly distributed hollows between the thin branches, the islands and the main line Can effectively reduce the contact area of the touch electrode unit, reduce the mutual inductance capacitance during the touch process, and thus shorten the charge and discharge response time during the touch process, effectively improve the response speed of the touch process, thereby optimizing the touch Touch experience.

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  • 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

一种触控电极单元、触控面板及触控显示器，所述触控电极单元包括：至少一主干线（1）；数个岛状部（2），均匀地散布在所述主干线（1）的二侧边中的至少一侧边的周围；及数个细支线（3），将所述数个岛状部（2）相互连接，及将与所述主干线（1）相邻的岛状部（2）连接到所述主干线（1），所述细支线（3）、所述岛状部（2）与所述主干线（1）之间形成数个镂空部（4）。

Description

触控电极单元、触控面板及触控显示器 技术领域
本发明是有关于一种电容式触控件，特别是有关于一种触控电极单元、触控面板及触控显示器。
 背景技术
现今，触控技术已成为显示产品的一个重要功能，随着显示精度越来越高，对触控技术的要求也逐渐提升。以投射电容式触控技术为例，可分成自电容式及互电容式。
以互电容式显示器为例，触控电极构造由多个串联的驱动电极与多个串联的感应电极交错阵列形成，在进行触摸检测时，在触摸点处的驱动电极与感应电极之间会产生互感电容变化，经由扫描电容变化显示器的二维平面的电容变化量，即可获得所述触摸点的坐标。
但是，传统触控电极图案的互感电容较大，在触控信号响应过程中，互感电容充放电的时间较长，导致触控反应不够快，造成触控体验度不佳。以往虽有一些技术试图解决上述问题，但仍有待改善。
因此，现有技术存在缺陷，急需改进。
 技术问题
本发明提供一种触控电极单元、触控面板及触控显示器，以解决现有技术所存在的上述问题。
 技术解决方案
本发明的一方面提供一种触控电极单元，包括：至少一主干线；数个岛状部，均匀地散布在所述主干线的二侧边中的至少一侧边的周围；及数个细支线，将所述数个岛状部相互连接，及将与所述主干线相邻的岛状部连接到所述主干线，所述细支线、所述岛状部与所述主干线之间形成数个镂空部。
在一些实施例中，所述主干线的数量为两条或两条以上，所述两条或两条以上的主干线在一中心点相互交叉。
在一些实施例中，所述主干线的数量为两条，所述两条主干线沿相互垂直的二方向延伸，所述两条主干线在所述中心点交叉以界定四个布局区，所述数个岛状部均匀地散布于所述布局区内。
在一些实施例中，所述数个细支线各自沿所述二方向中的其中一个方向延伸。
在一些实施例中，所述每个布局区为一个三角布局区，所述三角布局区具有一直角，所述三角布局区的直角朝向所述中心点。
在一些实施例中，所述数个岛状部阵列地散布于所述三角布局区内。
在一些实施例中，所述岛状部沿所述二方向中的一方向排列的数量在所述二方向中的另一方向上远离所述中心点而逐渐递减。
在一些实施例中，所述岛状部形成一正多边形的一实心区块。
在一些实施例中，所述岛状部形成正四边形并且具有四直角，所述细支线的二端中的至少一端连接于所述岛状部的相邻二直角之间。
在一些实施例中，所述形成正四边形的岛状部的四边线中的每个的一长度大于所述细支线的一宽度，所述细支线的所述宽度小于所述主干线的一宽度。
在一些实施例中，所述主干线、所述岛状部及所述细支线由透明导电材料形成。
本发明的另一方面提供一种触控面板，包括数个如上所述的触控电极单元，所述数个触控电极单元串联形成数个第一电极串及数个第二电极串，所述数个第一电极串沿一第一方向并列，所述多个第二电极串沿垂直所述第一方向的一第二方向并列，所述第一电极串中的触控电极单元与所述第二电极串中的触控电极单元交错分布且相互绝缘；
其中，所述触控电极单元包括：
至少一主干线；
数个岛状部，均匀地散布在所述主干线的二侧边中的至少一侧边的周围；及
数个细支线，将所述数个岛状部相互连接，及将与所述主干线相邻的岛状部连接到所述主干线，所述细支线、所述岛状部与所述主干线之间形成数个镂空部。
在一些实施例中，所述主干线的数量为两条或两条以上，所述两条或两条以上的主干线在一中心点相互交叉。
在一些实施例中，所述主干线的数量为两条，所述两条主干线沿相互垂直的二方向延伸，所述两条主干线在所述中心点交叉以界定四个布局区，所述数个岛状部均匀地散布于所述布局区内。
在一些实施例中，所述数个细支线各自沿所述二方向中的其中一个方向延伸。
在一些实施例中，所述每个布局区为一个三角布局区，所述三角布局区具有一直角，所述三角布局区的直角朝向所述中心点。
在一些实施例中，所述数个岛状部阵列地散布于所述三角布局区内。
在一些实施例中，所述岛状部沿所述二方向中的一方向排列的数量在所述二方向中的另一方向上远离所述中心点而逐渐递减。
在一些实施例中，所述岛状部形成正多边形的一实心区块。
本发明的又一方面提供一种触控显示器，包括如上所述的触控面板。
 有益效果
与现有技术相比较，本发明的触控电极单元、触控面板及触控显示器通过在所述细支线、所述岛状部与所述主干线之间形成大量且均匀散布的镂空部，可以有效降低触控电极单元的接触面积，使触控过程中的互感电容变小，进而缩短触控过程中的充放电响应时间，有效提升触控过程的响应速度，从而优化触控的触控体验度。
 附图说明
图1是本发明一实施例的触控电极单元串联形成数个电极串的平面示意图。
图2是图1中的电极串以一斜上方视角绘示以便说明互感电容的示意图。
图3是不具有镂空部的触控电极单元串联形成的电极串以一斜上方视角绘示以便说明互感电容的示意图。
图4a是图3中的互感电容的触控响应时间示意图。
图4b是图2中的互感电容的触控响应时间示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。再者，本发明所提到的方向用语，例如上、下、顶、底、前、后、左、右、内、外、侧面、周围、中央、水平、横向、垂直、纵向、轴向、径向、最上层或最下层等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参照图1所示，本发明一实施例的触控电极单元可包括至少一主干线1；数个岛状部2，均匀地散布在所述主干线1的二侧边中的至少一侧边的周围；及数个细支线3，将所述数个岛状部2相互连接，及将与所述主干线1相邻的岛状部2连接到所述主干线1，所述细支线3、所述岛状部2与所述主干线1之间形成数个镂空部4。
在一些实施例中，所述主干线1、所述岛状部2及所述细支线3可由透明导电材料(如ITO等)形成。
在一些实施例中，所述主干线1可以为一条，所述数个岛状部2可均匀地散布在所述主干线1的一侧边或二侧边的周围，所述的二侧边在所述主干线1的两端之间；此外，所述主干线1的数量还可为两条或两条以上，所述两条或两条以上的主干线1还可在一中心点E相互交叉。为了简化说明内容，后续以两条主干线1为例进行说明，但不以此为限。
举例而言，所述主干线1的数量如为两条，所述两条主干线1可沿相互垂直的二方向X、Y延伸，所述两条主干线1在所述中心点E交叉以界定四个布局区T，所述数个岛状部3均匀地散布于所述布局区T内；所述数个细支线3可各自沿所述二方向X、Y中的其中一个方向延伸；在一些实施例中，所述每个布局区T可为一个三角布局区，所述三角布局区具有一直角，所述三角布局区的直角朝向所述中心点E，从而，所述主干线1、所述岛状部2及所述细支线3的分布区域可形成一菱形区域，以利提高所述触控电极单元交错排列的密集度。
具体地，所述数个岛状部2可均匀地散布于所述三角布局区T内；所述每个细支线3沿所述二方向X、Y中的其中一个方向延伸，使所述细支线3、所述岛状部2与所述主干线1之间形成数个镂空部4。从而，使所述触控电极单元的面积大幅降低，所述镂空部4的形状可随所在位置而有所不同，例如：形成凸字状或十字状等。
在一些实施例中，所述数个岛状部2阵列地散布于所述布局区T内，例如：所述数个岛状部2可排列形成数个行及数个列，其中行距及列距可为相同，以均匀地排列在所述布局区T内。从而，可以在不缩小整体触控范围的情况下，有效降低被接触的面积。
在一些实施例中，所述岛状部2可形成正多边形的一实心区块，例如：正四边形、正八边形等实心区块，所述正多边形的边线数可为四的倍数，以利所述岛状部2连接所述细支线3。如图1所示，以正四边形为例，所述形成正四边形的岛状部2可具有四直角，所述细支线3的二端中的至少一端连接于所述岛状部2的相邻二直角之间。从而，可以在被接触的面积降低的情况下，有效维持触控效果不受影响。
在一些实施例中，所述岛状部2沿所述二方向X、Y中的一方向(如方向X)排列的数量在所述二方向X、Y中的另一方向(如方向Y)上远离所述中心点E而逐渐递减；以图1中的上方触控电极单元A1为例，在所述两条主干线1界定的右上方的布局区T内，所述岛状部2沿方向X排列的数量，在方向Y上，远离所述中心点E而从4个逐渐递减为3个、2个、1个。从而，可以有效提升所述岛状部2及镂空部4的散布均匀度。
在一些实施例中，所述岛状部2的四边线中的每个边线的一长度大于所述细支线3的一宽度，所述细支线3的所述宽度小于所述主干线1的一宽度。从而，可以有效扩大所述镂空部4的散布面积，以降低所述触控电极单元的被接触面积，并维持触控效果不受影响。
如图1所示，上述触控电极单元可串联形成数个电极串，以应用于一触控面板，以下举例说明，但不以此为限。
举例而言，所述触控面板可包括数个如上所述的触控电极单元，所述数个触控电极单元可串联形成数个第一电极串A及数个第二电极串B，所述各个第一电极串A可包括数个触控电极单元A1，相邻二触控电极单元A1之间可由一导接件A2(如ITO)串联，类似地，所述各个第二电极串B可包括数个触控电极单元B1，相邻二触控电极单元B1之间可由一导接件B2(如ITO)串联。所述数个第一电极串A可沿一第一方向并列，所述多个第二电极串B沿与所述第一方向垂直的一第二方向并列，所述第一电极串A中的触控电极单元A1与所述第二电极串B中的触控电极单元B1交错分布且相互绝缘。
举例而言，所述触控电极单元A1及触控电极单元B1可以设置在同一平面上，用以制备形成一单层(single layer) ITO (SITO)互电容式触控面板，位于所述触控面板边缘处的触控电极单元A1及触控电极单元B1的形状可依实际需求而改变。
此外，所述触控面板还可以应用于一触控显示器，所述触控显示器可包括如上所述的触控面板，还可以包括一显示面板(如LCD或OLED面板等)。
为了说明本发明上述实施例的优点，以下采用不具有镂空部的触控电极单元串联形成的电极串作为一比较对象。
首先，如图1所示，由于所述触控电极单元A1与B1的相邻二岛状部2之间散布着许多镂空部4，可以使得所述触控电极单元A1、B1的整体面积大幅降低，所述触控电极单元P1、K1的面积与一互感电容的大小有关。如图2所示，相邻二触控电极单元A1与B1之间的一总体互感电容可由多组相邻的岛状部2之间的多个局部互感电容(如C 1、C 2、C 3、C 4)组成，在通电运作过程中，所述具有镂空部4的触控电极单元A1与B1之间的互感电容可以降低。
相较之下，如图3所示，在电极串P、K中，所述触控电极单元P1、K1分别由导接件P2、K2串联，所述触控电极单元P1、K1填满一菱形面积(即不具有镂空部)，所述触控电极单元P1、K1整体面积较大，在所述触控电极单元P1与K1之间的互感电容C也较大。
由于所述互感电容的大小与在触控过程中的充放电响应的时间有关，在一充放电周期中，与不具有镂空部的触控电极单元P1、K1的触控响应时间τ r1、τ f1(如图4a所示)相比较，所述具有镂空部4的触控电极单元A1、B1的触控响应时间τ r2、τ f2(如图4b所示)明显较短。因此，上述均匀地散布所述镂空部4的触控电极单元A1、B1可以有效提升触控过程的响应速度，从而优化触控的触控体验度。
因此，本发明上述实施例的触控电极单元、触控面板及触控显示器通过在所述细支线、所述岛状部与所述主干线之间形成数量多、面积大且均匀散布的镂空部，可以有效降低触控电极单元的被接触面积，使触控过程中的互感电容变小，进而缩短触控过程中的充放电响应时间，有效提升触控过程的响应速度，从而优化触控的触控体验度。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种触控电极单元，其包括：
    至少一主干线；
    数个岛状部，均匀地散布在所述主干线的二侧边中的至少一侧边的周围；及
    数个细支线，将所述数个岛状部相互连接，及将与所述主干线相邻的岛状部连接到所述主干线，所述细支线、所述岛状部与所述主干线之间形成数个镂空部。
  2. 如权利要求1所述的触控电极单元，其中，所述主干线的数量为两条或两条以上，所述两条或两条以上的主干线在一中心点相互交叉。
  3. 如权利要求2所述的触控电极单元，其中，所述主干线的数量为两条，所述两条主干线沿相互垂直的二方向延伸，所述两条主干线在所述中心点交叉以界定四个布局区，所述数个岛状部均匀地散布于所述布局区内。
  4. 如权利要求3所述的触控电极单元，其中，所述数个细支线各自沿所述二方向中的其中一个方向延伸。
  5. 如权利要求3所述的触控电极单元，其中，所述每个布局区为一个三角布局区，所述三角布局区具有一直角，所述三角布局区的直角朝向所述中心点。
  6. 如权利要求5所述的触控电极单元，其中，所述数个岛状部阵列地散布于所述三角布局区内。
  7. 如权利要求6所述的触控电极单元，其中，所述岛状部沿所述二方向中的一方向排列的数量在所述二方向中的另一方向上远离所述中心点而逐渐递减。
  8. 如权利要求1所述的触控电极单元，其中，所述岛状部形成正多边形的一实心区块。
  9. 如权利要求8所述的触控电极单元，其中，所述岛状部形成正四边形并且具有四直角，所述各细支线的二端中的至少一端连接于所述岛状部的相邻二直角之间。
  10. 如权利要求9所述的触控电极单元，其中，所述形成正四边形的岛状部的四边线中的每个的一长度大于所述细支线的一宽度，所述细支线的所述宽度小于所述主干线的一宽度。
  11. 如权利要求1所述的触控电极单元，其中，所述主干线、所述岛状部及所述细支线由透明导电材料形成。
  12. 一种触控面板，其包括数个触控电极单元，所述数个触控电极单元串联形成数个第一电极串及数个第二电极串，所述数个第一电极串沿一第一方向并列，所述多个第二电极串沿垂直所述第一方向的一第二方向并列，所述第一电极串中的触控电极单元与所述第二电极串中的触控电极单元交错分布且相互绝缘；
    其中，所述触控电极单元包括：
    至少一主干线；
    数个岛状部，均匀地散布在所述主干线的二侧边中的至少一侧边的周围；及
    数个细支线，将所述数个岛状部相互连接，及将与所述主干线相邻的岛状部连接到所述主干线，所述细支线、所述岛状部与所述主干线之间形成数个镂空部。
  13. 如权利要求12所述的触控面板，其中，所述主干线的数量为两条或两条以上，所述两条或两条以上的主干线在一中心点相互交叉。
  14. 如权利要求13所述的触控面板，其中，所述主干线的数量为两条，所述两条主干线沿相互垂直的二方向延伸，所述两条主干线在所述中心点交叉以界定四个布局区，所述数个岛状部均匀地散布于所述布局区内。
  15. 如权利要求14所述的触控面板，其中，所述数个细支线各自沿所述二方向中的其中一个方向延伸。
  16. 如权利要求14所述的触控面板，其中，所述每个布局区为一个三角布局区，所述三角布局区具有一直角，所述三角布局区的直角朝向所述中心点。
  17. 如权利要求16所述的触控面板，其中，所述数个岛状部阵列地散布于所述三角布局区内。
  18. 如权利要求17所述的触控面板，其中，所述岛状部沿所述二方向中的一方向排列的数量在所述二方向中的另一方向上远离所述中心点而逐渐递减。
  19. 如权利要求12所述的触控面板，其中，所述岛状部形成正多边形的一实心区块。
  20. 一种触控显示器，其包括如权利要求12所述的触控面板。
PCT/CN2019/071566 2018-12-05 2019-01-14 触控电极单元、触控面板及触控显示器 WO2020113778A1 (zh)

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