WO2019144428A1 - 触摸屏 - Google Patents

触摸屏 Download PDF

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Publication number
WO2019144428A1
WO2019144428A1 PCT/CN2018/074990 CN2018074990W WO2019144428A1 WO 2019144428 A1 WO2019144428 A1 WO 2019144428A1 CN 2018074990 W CN2018074990 W CN 2018074990W WO 2019144428 A1 WO2019144428 A1 WO 2019144428A1
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WO
WIPO (PCT)
Prior art keywords
touch screen
electrode
conductive
connecting portion
conductive bridges
Prior art date
Application number
PCT/CN2018/074990
Other languages
English (en)
French (fr)
Inventor
叶剑
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 US16/023,676 priority Critical patent/US20190227646A1/en
Publication of WO2019144428A1 publication Critical patent/WO2019144428A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • G06F3/0443—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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a touch screen.
  • the invention provides a touch screen with better bending performance.
  • the touch screen includes a touch layer, and the touch layer includes:
  • each of the first electrode chains includes a plurality of spaced first electrodes, and the two adjacent first electrodes are electrically connected by a first connecting portion, the first The connecting portion includes at least one conductive bridge, and each of the conductive bridges is provided with a plurality of spaced through holes;
  • each of the second electrode chains includes a plurality of spaced second electrodes, two adjacent The second electrode is electrically connected by a second connecting portion that is superposed on the second connecting portion and insulated from the second connecting portion.
  • the conductive bridge comprises two spaced long sides, and the long sides of the conductive bridge are straight lines.
  • the conductive bridge comprises two spaced long sides, the long sides of the conductive bridge are curved, each of the long sides comprises a plurality of convex portions arranged at intervals, and between the two adjacent convex portions A concave portion is formed, and the convex portions of the two long sides are in one-to-one correspondence, and the through hole corresponds to the convex portion.
  • the first connecting portion includes a plurality of the conductive bridges, and the plurality of conductive bridges are disposed in parallel or in a crosswise arrangement.
  • the plurality of conductive bridges are connected by at least one connecting strip.
  • each of the connecting belts is provided with a plurality of spaced through holes.
  • the at least one connecting strip comprises a first connecting strip and a second connecting strip, each of the conductive bridges comprising a first end and a second end opposite to the first end, a plurality of the conductive bridges The first end is electrically connected by a first connection, and the second ends of the plurality of conductive bridges are electrically connected by a second connection, and the first connection band and the second connection band are respectively connected to two adjacent ones On the first electrode.
  • connecting strip is disposed at an intermediate position of the conductive bridge and connected to an intermediate position of each of the conductive bridges.
  • the touch screen further includes a cover, the cover is disposed on the touch layer, and the touch layer is adhered to an inner surface of the cover.
  • the cover plate is a 3D cover plate
  • the cover plate includes a first plane and two curved surfaces on both sides of the first plane and connected to the first plane, the curved surface from the first A plane is curved perpendicular to the first plane direction; the conductive bridge extends in the same direction as the bending axis of the curved surface.
  • the touch screen provided by the present invention, the two adjacent first electrodes are electrically connected by the first connecting portion, and the first connecting portion includes at least one of the conductive bridges, thereby passing through a plurality of The conductive bridges together bear the bending stress generated by the bending of the touch screen, effectively reducing the bending stress of each of the conductive bridges, thereby avoiding the problem that the touch screen is broken when bent. And a plurality of through holes spaced apart on each of the conductive bridges further reduce bending stress on the conductive bridge, further avoiding the problem that the touch screen is broken when bent.
  • FIG. 1 is a schematic structural diagram of the touch screen according to the first embodiment of the present invention.
  • Figure 2 is an enlarged schematic view showing the position II of the touch screen of the embodiment of Figure 1;
  • FIG. 3 is a cross-sectional view of the touch screen of the embodiment of FIG. 1 taken along the I-I position;
  • FIG. 4 is a cross-sectional view showing the position along the I-I of the touch screen in the second embodiment of the present invention.
  • FIG. 5 is a schematic structural view of the first connecting portion according to the first embodiment of the present invention.
  • FIG. 6 is a schematic structural view of the first connecting portion according to a third embodiment of the present invention.
  • FIG. 7 is a schematic structural view of the first connecting portion connecting adjacent two first electrodes according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural view of the first connecting portion connecting adjacent two first electrodes according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural view of the first connecting portion connecting two adjacent first electrodes according to another embodiment of the present invention.
  • Figure 10 is a schematic structural view of the first connecting portion according to a fourth embodiment of the present invention.
  • FIG. 11 is a schematic structural view of the first connecting portion according to a fifth embodiment of the present invention.
  • Figure 12 is a schematic view showing the structure of the first connecting portion of the sixth embodiment of the present invention.
  • the touch screen 100 includes a substrate 10 and a touch layer 20 disposed on the substrate 10 , and the touch screen 100 is implemented by the touch layer 10 . Touch function.
  • the touch layer 20 includes a plurality of first electrode chains 21 and a second electrode chain 22 that is insulated from the plurality of first electrode chains 21 and insulated.
  • a plurality of the first electrode chains 21 are arranged in parallel
  • a plurality of the second electrode chains 22 are arranged in parallel
  • the first electrode chain 21 extends in a horizontal direction
  • the second electrode chain 22 extends in the vertical direction
  • the first electrode chain 21 is disposed perpendicular to the second electrode chain 22. It can be understood that the extending direction of the first electrode chain 21 and the second electrode chain 22 can be changed according to actual needs.
  • the first electrode chain 21 includes a plurality of spaced apart first electrodes 211 , and the two adjacent first electrodes 211 are electrically connected by a first connecting portion 30 .
  • the second electrode chain 22 includes a plurality of spaced second electrodes 221.
  • a plurality of the first electrodes 211 and a plurality of the second electrodes 221 are located in the same layer and formed by the same process.
  • a metal material layer is formed on the substrate 10, and a plurality of the first electrodes 211 and the plurality of second electrodes 221 are simultaneously formed by patterning the metal material layers. Further, in the present embodiment, the two adjacent second electrodes 221 are electrically connected by the second connection portion 23.
  • the second connecting portion 23 is located in the same layer as the first electrode 211 and the second electrode 22, and patterned the metal material layer to obtain the first electrode 21 and the second electrode 22 At the same time, the metal material layer is patterned to obtain the second connecting portion 23, that is, the second connecting portion 23 and the second electrode 22 are obtained by the same process and are integrated.
  • the second connecting portion 23 has a narrow neck shape and a smaller size than the second click 21 .
  • the adjacent two of the second electrodes 221 of each column may also pass through a portion of the second electrode 221 to the other of the second electrodes. 221 is extended to achieve connection; or, two adjacent second electrodes 221 are partially overlapped to achieve connection.
  • Each of the first electrode 211 and the second electrode 221 may be a driving electrode (Tx) or a sensing electrode (Rx).
  • the first electrode 211 is a driving electrode (Tx)
  • the second electrode 221 is a sensing electrode (Rx);
  • the first electrode 211 is a sensing electrode (Rx)
  • the second electrode 221 is a driving electrode (Tx).
  • the first electrode 211 and the second electrode 221 have a certain shape to facilitate calculation of the touch position and implementation of the touch function.
  • the first electrode 211 and the second electrode 221 are all diamonds of the same size.
  • first electrode 211 and the second electrode 221 may have other shapes such as a square, a rectangle, and the like.
  • the shape of the first electrode 211 and the second electrode 221 may be the same or different.
  • the second electrode 221 is elongated, and the first electrode 211 is a block.
  • the first electrode 211 having a block shape is located on both sides of the elongated second electrode 221 .
  • the capacitance between the adjacent first electrode 211 and the second electrode 221 of the touch position changes, and the capacitance is detected. Change to obtain the implemented touch position to achieve touch kinetic energy.
  • the first electrode 211 and the second electrode 221 adjacent thereto and the medium between the two form a capacitor.
  • the first connecting portion 30 is disposed on the second connecting portion 23 and insulated from the second connecting portion 23 .
  • an insulating layer 40 is disposed on the first electrode 211, the second electrode 221, and the second connecting portion 23, and a via hole is disposed on the insulating layer 40 at a position opposite to the first electrode 211.
  • the first connecting portion 30 connects the adjacent first electrodes 211 through the via holes on the insulating layer 40, thereby achieving electrical connection between the first electrodes 211. .
  • Two ends of the first connecting portion 30 are respectively connected to two adjacent first electrodes 211 to electrically connect two adjacent first electrodes 211. Referring to FIG.
  • the first connecting portion 30 and the insulating layer 40 are located on a side of the touch layer 20 facing away from the substrate 10 , and the insulating layer 40 is provided with a via hole.
  • the first connecting portion 30 connects the two adjacent first electrodes 211 through the via holes.
  • the first connecting portion 30 and the insulating layer 40 are located on a side of the touch layer 20 facing the substrate 10 .
  • the first connecting portion 30 includes at least one conductive bridge 31.
  • the conductive bridge 31 is an elongated rod shape, and two ends of the conductive bridge 31 are respectively connected to two adjacent first electrodes 211.
  • the first connecting portion 30 includes a conductive bridge 31 .
  • a plurality of spaced through holes 32 are defined in the conductive bridge 31.
  • the bending stress portion of the conductive bridge 31 can be partially discharged through the through hole 32 by a plurality of through holes 32 spaced apart on each of the conductive bridges 31 to reduce the bending of the conductive bridge 31
  • the stress is folded, so that the problem that the first connecting portion 30 of the touch screen is broken at the time of bending can be avoided.
  • the conductive bridge 31 includes two spaced long sides 311. Both of the long sides 311 are straight lines.
  • the two long sides 311 of the conductive bridge 31 are curved.
  • Each of the long sides 311 includes a plurality of protrusions 312 spaced apart from each other, and a recess 313 is formed between the two adjacent protrusions 312.
  • the outline of the convex portion 312 and the concave portion 313 may be any shape such as a semicircular arc shape, a parabolic shape, a square shape, a triangular trapezoid shape or the like.
  • the convex portions 312 of the two long sides 311 are in one-to-one correspondence, and the through holes 32 correspond to the convex portions 312.
  • the through hole 32 is disposed between the two convex portions 312 corresponding to the two long sides 311, so as to achieve the correspondence with the convex portion 312.
  • the bending stress portion of the conductive bridge 31 can be partially discharged through the recess 313 to further reduce the bend on the conductive bridge 31.
  • the stress is folded, so that the problem that the first connecting portion 30 of the touch screen is broken at the time of bending can be avoided.
  • the edge contours of the convex portion 312 and the concave portion 313 are all circular arc shapes, and the convex portion 312 and the concave portion 313 are smoothly connected to each other, thereby preventing the long side 311 from appearing.
  • the position of the sharp corners avoids the concentration of the bending stress at the sharp corners.
  • the first connecting portion 30 includes a plurality of conductive bridges 31.
  • a plurality of the conductive bridges 31 are parallel or intersect with the conductive bridges 31.
  • the plurality of the conductive bridges 31 are disposed in parallel and independent of each other, that is, each of the conductive bridges 31 independently electrically connects the two adjacent first electrodes 211. Connecting the adjacent first electrodes 211 by a plurality of the conductive bridges 31, so that the plurality of the conductive bridges 31 together bear the bending stress generated by the bending of the touch screen 100, thereby effectively reducing each of the conductive bridges. The bending stress experienced by 31, thereby avoiding the problem that the touch screen 100 is broken when bent.
  • the first connecting portion 30 includes a plurality of conductive bridges 31, the conductive bridges 31 are connected to the adjacent two through the first connecting portion 30 as compared with the existing conductive bridges.
  • the width of the conductive bridge 31 can be made smaller, so that the bending performance of the conductive bridge 31 is better, and the problem of breakage at the time of bending is further avoided.
  • the width of the conductive bridge 31 can be made smaller, the structure of the conductive bridge 31 is made more difficult to observe, thereby enhancing the aesthetics of the touch screen 100.
  • each of the conductive bridges 31 may be the same as that of the conductive bridge 31 described in the embodiment of FIG. 5 or FIG. 6.
  • the touch screen is different from the touch screen of FIG. 7 in that a plurality of the conductive bridges 31 intersect, and a plurality of the conductive bridges 31 intersect at a point. .
  • a plurality of the conductive bridges 31 intersect and form an X-shaped structure.
  • the structure of each of the conductive bridges 31 may be the same as that of the conductive bridge 31 described in the embodiment of FIG. 5 or FIG. 6.
  • a plurality of the conductive bridges 31 are connected by at least one connecting strip 34, and the at least one connecting strip 34 and the conductive bridge 31 are obtained by the same process.
  • a plurality of the conductive bridges 31 are parallel and connected by a connecting strip 34.
  • the connecting strip 34 connects the intermediate positions of the plurality of conductive bridges 31, and connects each of the conductive bridges 31. The middle position.
  • the connecting belt 34 may also be two, three or more, and the number thereof is not limited herein.
  • the structure of each of the conductive bridges 31 is the same as that of the conductive bridge 31 described in the embodiment of FIG. 5 or FIG. Referring to FIG.
  • the connecting straps 34 are two.
  • One of the connecting strips 34 connects one end of the plurality of conductive bridges 31 on the same first electrode 211, and the other of the connecting strips 34 connects the other ends of the plurality of conductive bridges 31, thereby passing the connection
  • the belt 34 connects a plurality of the conductive bridges 31 in the same first connecting portion 30. And connecting the two ends of the first connecting portion 30 to the two adjacent first electrodes 211 through the two connecting straps 34, so that the first connecting portion 30 is connected thereto.
  • the contact area between the first electrodes 211 is larger, so that the first connection portion 30 is more firmly bonded to the first electrode 211 connected thereto.
  • the through holes 32 are spaced apart on the connecting strip 34, so that the overlapping impedance between the first connecting strip 33 and the second connecting strip 34 and the first electrode can be reduced, thereby realizing The touch sensitivity of the touch screen 100 is ensured while the first connecting portion 30 is firmly coupled with the first electrode 211 connected thereto.
  • the first connecting strip 33 and the second connecting strip 34 are obtained by the same process as the plurality of the conductive bridges 31, thereby reducing the manufacturing process and reducing the cost.
  • the connecting straps 34 are one and the conductive bridges 31 are two.
  • the two conductive bridges 31 are each bent to form an angle, and the connecting strip 34 connects the corners of the two conductive bridges 31 to form an X-shaped structure.
  • the conductive bridges 31 may also be a plurality of strips, and the plurality of conductive bridges 31 are bent to form an angle, and the connecting strips 34 are connected to the plurality of conductive bridges.
  • the corners of 31 are formed to form an X-like structure.
  • first electrode chain 21 and the second electrode chain 22 are connected to the touch chip 50 through touch lines.
  • the touch line includes a first touch line 41 and a second touch line 42.
  • each of the first electrode chains 21 is connected to the touch chip 50 through a first touch trace 41, and each of the second electrode chains 22 passes through the The second touch trace 42 is connected to the touch chip 50.
  • the first electrode chain 21 is formed by connecting a plurality of the first electrodes 211 through the first connecting portion 30, and the plurality of the second electrodes 221 are connected through the second connecting portion 40 to form the second electrode chain 22.
  • each of the first electrode chains 21 only needs to be connected to one touch trace while achieving the touch effect, and each of the second electrode chains 22 only needs one touch
  • the control traces are connected, and each of the first electrodes 211 and each of the second electrodes 221 of the prior art need to be connected to the touch chip through a touch trace, thereby greatly reducing touch walking.
  • the number of lines saves costs.
  • the touch line is generally disposed in the non-display area of the touch screen, reducing the number of the touch lines can also reduce the width of the non-display area, which is beneficial to the implementation of the full screen.
  • the touch screen 100 further includes a cover, the cover is disposed on the touch layer 20, and the touch layer 20 is adhered to the inner surface of the cover.
  • the cover plate is used to protect the touch layer from external water, oxygen, etc., thereby ensuring the normal implementation of the touch function of the touch layer 20 .
  • the cover plate may be a flexible cover or a rigid cover according to actual needs.
  • the cover plate is a 3D cover plate and can be used in a curved screen display device.
  • the cover plate includes a first plane and two curved faces on opposite sides of the first plane and connected to the first plane. The curved surface is curved from the first plane to a direction perpendicular to the first plane.
  • the extending direction of the first connecting portion 30 connecting the two adjacent first electrodes 21 is the same as the extending direction of the bending axis of the curved surface.
  • the bending axis direction of the curved surface is parallel to one side of the first plane and the curved surface.
  • a plurality of the conductive bridges 31 are parallel, and each of the conductive bridges 31 extends in the same direction as the bending axis of the curved surface, so that the touch layer 20 is adhered to the inner surface of the cover plate.

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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)
  • Position Input By Displaying (AREA)

Abstract

本发明提供一种触摸屏，使得所述触摸屏的相邻的两个第一电极之间通过第一连接部电连接，且所述第一连接部包括至少一条导电桥，从而通过多条导电桥一起承担所述触摸屏进行弯曲产生的弯曲应力，有效降低每条所述导电桥的所承受的弯折应力，进而避免所述触摸屏在弯折时出现断裂的问题。且在每条所述导电桥上间隔设置的多个通孔，进一步降低所述导电桥上所承受的弯折应力，进一步避免所述触摸屏在弯折时出现断裂的问题。

Description

触摸屏 技术领域
本发明涉及触控技术领域，尤其涉及一种触摸屏。
背景技术
柔性OLED显示器因其低功耗、可弯曲的特性而受到了广泛的关注。目前为了实现OLED显示器的弯曲，要求不仅要OLED显示面板具有较好的弯折性能，设于所述OLED显示面板上的触摸屏也要求具有较好的弯折性能，避免所述触摸屏在弯折时出现断裂的问题。
发明内容
本发明提供一种具有较好的弯折性能的触摸屏。
所述触摸屏包括触控层，所述触控层包括：
间隔排布的多条第一电极链，每条第一电极链包括多个间隔的第一电极，相邻的两个所述第一电极之间通过第一连接部电连接，所述第一连接部包括至少一个导电桥，每一所述导电桥上设有多个间隔设置的通孔；
间隔排布的多条第二电极链，所述第二电极链与所述第一电极链交叉绝缘设置；每条所述第二电极链包括多个间隔的第二电极，相邻的两个所述第二电极通过第二连接部电连接，所述第一连接部叠于所述第二连接部上并与所述第二连接部绝缘。
其中，所述导电桥包括两条间隔的长边，所述导电桥的长边为直线。
其中，所述导电桥包括两条间隔的长边，所述导电桥的长边为曲线，每条所述长边包括间隔设置的多个凸部，相邻的两个所述凸部之间形成一个凹部，两条所述长边的凸部一一对应，所述通孔与所述凸部对应。其中，所述第一连接部包括多条所述导电桥，多条所述导电桥平行间隔设置或交叉设置。
其中，多条所述导电桥通过至少一条连接带连接。
其中，每条所述连接带上设有多个间隔设置的通孔。
其中，所述至少一条连接带包括第一连接带及第二连接带，每条所述导电 桥均包括第一端及与所述第一端相对的第二端，多条所述导电桥的第一端通过第一连接带电连接，多条所述导电桥的第二端通过第二连接带电连接，所述第一连接带及所述第二连接带分别连接至相邻的两个所述第一电极上。
其中，所述连接带设置于所述导电桥的中间位置，并连接每条所述导电桥的中间位置。
其中，所述触摸屏还包括一盖板，所述盖板盖设于所述触控层上，且所述触控层与所述盖板的内表面贴合。
其中，所述盖板为3D盖板，所述盖板包括第一平面及位于所述第一平面两侧并与所述第一平面连接的两个弯曲面，所述弯曲面从所述第一平面向垂直于所述第一平面方向弯曲；所述导电桥的延伸方向与所述弯曲面的弯曲轴的延伸方向相同。
本发明提供的所述触摸屏，相邻的两个所述第一电极之间通过所述第一连接部电连接，且所述第一连接部包括至少一条所述导电桥，从而通过多条所述导电桥一起承担所述触摸屏进行弯曲产生的弯曲应力，有效降低每条所述导电桥的所承受的弯折应力，进而避免所述触摸屏在弯折时出现断裂的问题。且在每条所述导电桥上间隔设置的多个通孔，进一步降低所述导电桥上所承受的弯折应力，进一步避免所述触摸屏在弯折时出现断裂的问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明第一实施例的所述触摸屏的结构示意图；
图2是图1所述实施例的所述触摸屏的II位置的放大示意图；
图3是本发明图1所述实施例的所述触摸屏制作时沿I-I位置的截面示意图；
图4是本发明第二实施例的所述触摸屏制作时沿I-I位置的截面示意图；
图5是本发明第一实施例的所述第一连接部的结构示意图；
图6是本发明第三实施例的所述第一连接部的结构示意图；
图7是本发明另一实施例的所述第一连接部的连接相邻两个第一电极的结构示意图；
图8是本发明另一实施例的所述第一连接部的连接相邻两个第一电极的结构示意图；
图9是本发明另一实施例的所述第一连接部的连接相邻两个第一电极的结构示意图；
图10是本发明第四实施例的所述第一连接部的结构示意图；
图11是本发明第五实施例的所述第一连接部的结构示意图；
图12是本发明第六实施例的所述第一连接部的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1至图2，本发明提供一种触摸屏100，所述触摸屏100包括基板10及设于所述基板10上的触控层20，通过所述触控层10实现对所述触摸屏100的触控功能。
所述触控层20包括多条第一电极链21及与多条所述第一电极链21交叉并绝缘设置的第二电极链22。本实施例中，多条所述第一电极链21平行间隔设置，多条所述第二电极链22平行间隔设置，且所述第一电极链21沿水平方向延伸，所述第二电极链22沿垂直方向延伸，所述第一电极链21与所述第二电极链22垂直设置。可以理解的是，所述第一电极链21与所述第二电极链22的延伸方向可以根据实际需要进行变化。
所述第一电极链21包括多个间隔设置的第一电极211，相邻的两个所述第一电极211之间通过第一连接部30电连接。所述第二电极链22包括多个间隔设置的第二电极221。多个所述第一电极211及多个所述第二电极221位于同一层并通过同一制程形成。本发明一实施例中，在所述基板10上形成一层 金属材料层，通过图案化所述金属材料层同时形成多个所述第一电极211及多个所述第二电极221。并且，本实施例中，相邻的两个所述第二电极221通过第二连接部23电连接。所述第二连接部23与所述第一电极211及所述第二电极22位于同一层，并在图案化所述金属材料层以得到所述第一电极21及所述第二电极22的同时，图案化所述金属材料层以得到所述第二连接部23，即所述第二连接部23与所述第二电极22通过同一制程得到并为一体结构。具体在本实施方式中，第二连接部23成窄颈状，其尺寸小于第二点击21。可以理解的是，在本发明的其它实施例中，每列的相邻的两个所述第二电极221之间也可以通过一个所述第二电极221的一部分向另一个所述第二电极221延伸以实现连接；或者，相邻两个所述第二电极221之间部分重叠以实现连接。
所述第一电极211及所述第二电极221均可以为驱动电极(Tx)或感应电极(Rx)。当所述第一电极211为驱动电极(Tx)时，所述第二电极221为感应电极(Rx)；当第一电极211为感应电极(Rx)时，所述第二电极221为驱动电极(Tx)。并且，本发明中，所述第一电极211及所述第二电极221有一定的形状，以方便对所述触控位置的计算及触控功能的实现。本实施例中，所述第一电极211及所述第二电极221均为大小相同的菱形，所述第一电极链21与所述第二电极链22交叉时，相邻的两个第一电极211与相邻的两个第二电极221形成一个大的菱形。
可以理解的是，所述第一电极211及所述第二电极221可以为其它的形状，如正方形、长方形等。所述第一电极211与所述第二电极221的形状可以相同也可以不同，例如，在本发明一些实施例中，所述第二电极221为长条状，所述第一电极211为块状，块状的所述第一电极211位于长条状的所述第二电极221两侧。
本发明中，当触控所述触控层20的任意位置时，触控位置的相邻的所述第一电极211及所述第二电极221之间的电容会发生改变，通过检测电容的改变从而获取实施的触控位置，从而实现触控动能。具体的，所述第一电极211及与其相邻的第二电极221及二者之间的介质形成一电容。当触控所述触控层60的任意位置时，触控位置的电容会发生改变，通过检测电容的改变从而获取实施的触控位置，从而实现触控动能。
相邻的两个所述第一电极211通过第一连接部30电连接。所述第一连接部30设于所述第二连接部23上并与所述第二连接部23绝缘。具体的，在所述第一电极211、第二电极221和第二连接部23上设有绝缘层40，在所述绝缘层40上与所述第一电极211相对的位置上设有过孔，第一连接部30通过绝缘层40上的过孔连接相邻的第一电极211，从而实现第一电极211间的电连接。。所述第一连接部30的两端分别连接相邻的两个所述第一电极211，从而电连接相邻的两个所述第一电极211。请参阅图3，本实施例中，所述第一连接部30及所述绝缘层40均位于所述触控层20背离所述基板10的一侧，所述绝缘层40上设有过孔，所述第一连接部30通过所述过孔连接相邻的两个所述第一电极211。请参阅图4，本发明其它实施例中，所述第一连接部30及所述绝缘层40位于所述触控层20朝向所述基板10的一侧。
所述第一连接部30包括至少一条导电桥31。所述导电桥31为长条形的杆状，所述导电桥31的两端分别连接相邻的两个所述第一电极211。请参阅图5，本实施例中，所述第一连接部30包括一条导电桥31。所述导电桥31上均设有多个间隔设置的通孔32。通过在每条所述导电桥31上间隔设置的多个通孔32，能够通过所述通孔32将所述导电桥31的弯曲应力部分排出，以降低所述导电桥31上所承受的弯折应力，从而能够避免所述触摸屏的所述第一连接部30在弯折时出现断裂的问题。所述导电桥31包括两条间隔的长边311。两条所述长边311均为直线。
请参阅图6，在本发明的另一实施例中，所述导电桥31的两条长边311均为曲线。每条所述长边311包括间隔设置的多个凸部312，相邻的两个所述凸部312之间形成一个凹部313。所述凸部312及所述凹部313的轮廓可以为任意形状，如半圆弧形、抛物线形、方形、三角形梯形等。两条所述长边311的凸部312一一对应，且所述通孔32与所述凸部312对应。具体的，所述通孔32设于两条所述长边311相对应的两个凸部312之间，从而实现与所述凸部312的对应。通过在所述导电桥的相对的两条长边311上设置凹部313，能够通过所述凹部313将所述导电桥31的弯曲应力部分排出，以进一步降低所述导电桥31上所承受的弯折应力，从而能够避免所述触摸屏的所述第一连接部30在弯折时出现断裂的问题。本实施例中，所述凸部312及所述凹部313 的边缘轮廓均为圆弧形，且所述凸部312与所述凹部313的之间平滑连接，从而防止所述长边311出现具有尖角的位置，避免所述弯曲应力在所述尖角位置集中。
进一步的，请参阅图7，本发明的其它实施例中，所述第一连接部30包括多条导电桥31。多条所述导电桥31平行或者与所述导电桥31相交。本实施例中，多条所述导电桥31平行间隔设置且相互独立，即每条所述导电桥31均独立电连接相邻的两个所述第一电极211。通过设置多条所述导电桥31连接相邻的所述第一电极211，使得通过多条所述导电桥31一起承担所述触摸屏100进行弯曲产生的弯曲应力，有效降低每条所述导电桥31所承受的弯折应力，进而避免所述触摸屏100在弯折时出现断裂的问题。进一步的，由于所述第一连接部30包括多条导电桥31，所述导电桥31相比于现有的导电桥来说，在通过所述第一连接部30连接相邻两个第一电极的同时，所述导电桥31的宽度可以更小，从而使得所述导电桥31的弯折性能更好，进一步的避免弯折时出现断裂的问题。同时，由于所述导电桥31的宽度可以更小，使得所述导电桥31的结构更加难以观察到，从而增强所述触摸屏100的美观性。并且，每条所述导电桥31与所述第一电极211的搭接面积减小，从而能够降低搭接阻抗，提高触摸屏触控灵敏度及可靠性。本实施例中，每条所述导电桥31结构可以与图5或者图6所述实施例中所述导电桥31的结构相同。
请参阅图8及图9，本发明另一实施例中，所述触摸屏与图7所述的触摸屏的差别在于，多条所述导电桥31相交，且多条所述导电桥31相交于一点。具体的，本实施例中，多条所述导电桥31交叉并形成X型结构。本实施例中，每条所述导电桥31的结构可以与图5或者图6所述实施例中所述导电桥31的结构相同。
进一步的，多条所述导电桥31通过至少一条连接带34连接，所述至少一条连接带34与所述导电桥31通过同一制程得到。请参阅图10，多条所述导电桥31平行，并通过一条所述连接带34连接，所述连接带34连接多条所述导电桥31的中间位置，并连接每条所述导电桥31的中间位置。可以理解的，在本发明的其它实施例中，所述连接带34也可以为两条、三条或多条，此处对其数量没有限定。本实施例中，每条所述导电桥31的结构均与图5或图6 所述实施例中所述导电桥31的结构相同。请参阅图12，本发明另一实施例中，所述连接带34为两条。一条所述连接带34连接多条所述导电桥31位于同一所述第一电极211上的一端，另一条所述连接带34连接多条所述导电桥31的另一端，从而通过所述连接带34将同一条所述第一连接部30内的多条所述导电桥31连接起来。并且，通过两条所述连接带34将所述第一连接部30的两端分别连接至相邻的两个所述第一电极211上，使得所述第一连接部30与同其连接的所述第一电极211之间的接触面积更大，从而使得所述第一连接部30与同其连接的所述第一电极211之间结合的更加牢固。同时，在所述连接带34上间隔设置所述通孔32，能够减少所述第一连接带33与所述第二连接带34与所述第一电极之间的搭接阻抗，从而实现所述第一连接部30与同其连接的所述第一电极211之间牢固结合的同时，保证所述触摸屏100的触控灵敏度。本发明中，所述第一连接带33及所述第二连接带34与多条所述导电桥31通过同一制程得到，减少制作工艺，减低成本。
请参阅图11，本发明另一实施例中，与图10所述的实施例的差别在于：所述所述连接带34为一条，所述导电桥31为两条。两条所述导电桥31均弯折形成一弯角，所述连接带34连接两条所述导电桥31的弯角，形成一类X型的结构。可以理解的是，所述导电桥31也可以为多条，多条所述导电桥31中数条所述导电桥31弯折形成一弯角，所述连接带34连接多条所述导电桥31的弯角，以形成类X型的结构。
进一步的，所述第一电极链21及所述第二电极链22通过触控走线实现与所述触控芯片50的连接。所述触控走线包括第一触控走线41及第二触控走线42。本实施例中，每条所述第一电极链21均通过一所述第一触控走线41与所述触控芯片50相连接，每条所述第二电极链22均通过一所述第二触控走线42与所述触控芯片50相连接。本发明中，通过将多个所述第一电极211通过第一连接部30连接形成第一电极链21，将多个所述第二电极221通过第二连接部40连接形成第二电极链22，使得在实现触控效果的同时，每条所述第一电极链21只需要与一根所述触控走线相连接，每条所述第二电极链22只需要与一根所述触控走线相连，与现有技术每个所述第一电极211及每个所述第二电极221均需通过一条触控走线与触控芯片连接的方式相比，大大减少了触控 走线的数量，节约了成本。并且，由于所述触控走线一般设于所述触摸屏的非显示区域，因此，减少所述触控走线的数量还能缩小所述非显示区域的宽度，有利于全面屏的实现。
进一步的，所述触摸屏100还包括一盖板，所述盖板盖设于所述触控层上20，且所述触控层20与所述盖板的内表面贴合。所述盖板用于保护所述触控层，防止外部的水、氧等侵入所述触控层20内，从而保证所述触控层20的触控功能的正常实现。所述盖板根据实际需要，可以是柔性盖或刚性盖板。本实施例中，所述盖板为3D盖板，可以用于曲面屏显示设备中。所述盖板包括第一平面及位于所述第一平面两侧并与所述第一平面连接的两个弯曲面。所述弯曲面从所述第一平面向垂直于所述第一平面方向弯曲。连接相邻两个所述第一电极21的所述第一连接部30的延伸方向与所述弯曲面的弯曲轴的延伸方向相同。本实施例中，所述弯曲面的弯曲轴方向与所述第一平面与所述弯曲面连接的一条边平行。多条所述导电桥31平行，每条所述导电桥31的延伸方向与所述弯曲面的弯曲轴的延伸方向相同，从而使得所述触控层20与所述盖板的内表面贴合时，所述触控层20进行弯曲时，由于所述第一连接部30的延伸方向与所述弯曲面的弯曲轴的延伸方向相同，从而能够降低所述第一连接部在弯折区折断的风险。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (12)

  1. 一种触摸屏，包括触控层，其中，所述触控层包括：
    间隔排布的多条第一电极链，每条第一电极链包括多个间隔的第一电极，相邻的两个所述第一电极之间通过第一连接部电连接，所述第一连接部包括至少一个导电桥，每一所述导电桥上设有多个间隔设置的通孔；
    间隔排布的多条第二电极链，所述第二电极链与所述第一电极链交叉绝缘设置；每条所述第二电极链包括多个间隔的第二电极，相邻的两个所述第二电极通过第二连接部电连接，所述第一连接部叠于所述第二连接部上并与所述第二连接部绝缘。
  2. 如权利要求1所述的触摸屏，其中，所述导电桥包括两条间隔的长边，所述导电桥的长边为直线。
  3. 如权利要求1所述的触摸屏，其中，所述导电桥包括两条间隔的长边，所述导电桥的长边为曲线，每条所述长边包括间隔设置的多个凸部，相邻的两个所述凸部之间形成一个凹部，两条所述长边的凸部一一对应，所述通孔与所述凸部对应。
  4. 如权利要求1所述的触摸屏，其中，所述第一连接部包括多条所述导电桥，多条所述导电桥平行间隔设置或交叉设置。
  5. 如权利要求2所述的触摸屏，其中，所述第一连接部包括多条所述导电桥，多条所述导电桥平行间隔设置或交叉设置。
  6. 如权利要求3所述的触摸屏，其中，所述第一连接部包括多条所述导电桥，多条所述导电桥平行间隔设置或交叉设置。
  7. 如权利要求4所述的触摸屏，其中，多条所述导电桥通过至少一条连接带连接。
  8. 如权利要求7所述的触摸屏，其中，每条所述连接带上设有多个间隔设置的通孔。
  9. 如权利要求7所述的触摸屏，其中，所述连接带包括第一连接带及第二连接带，每条所述导电桥均包括第一端及与所述第一端相对的第二端，多条所述导电桥的第一端通过第一连接带电连接，多条所述导电桥的第二端通过第 二连接带电连接，所述第一连接带及所述第二连接带分别连接至相邻的两个所述第一电极上。
  10. 如权利要求7所述的触摸屏，其中，所述连接带设置于所述导电桥的中间位置，并连接每条所述导电桥的中间位置。
  11. 如权利要求1所述的触摸屏，其中，所述触摸屏还包括一盖板，所述盖板盖设于所述触控层上，且所述触控层与所述盖板的内表面贴合。
  12. 如权利要求11所述的触摸屏，其中，所述盖板为3D盖板，所述盖板包括第一平面及位于所述第一平面两侧并与所述第一平面连接的两个弯曲面，所述弯曲面从所述第一平面向垂直于所述第一平面方向弯曲；所述导电桥的延伸方向与所述弯曲面的弯曲轴的延伸方向相同。
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