WO2019056939A1 - 触控面板及其制造方法、触控显示面板 - Google Patents

触控面板及其制造方法、触控显示面板 Download PDF

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Publication number
WO2019056939A1
WO2019056939A1 PCT/CN2018/103535 CN2018103535W WO2019056939A1 WO 2019056939 A1 WO2019056939 A1 WO 2019056939A1 CN 2018103535 W CN2018103535 W CN 2018103535W WO 2019056939 A1 WO2019056939 A1 WO 2019056939A1
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WIPO (PCT)
Prior art keywords
touch
substrate
metal mesh
panel
layer
Prior art date
Application number
PCT/CN2018/103535
Other languages
English (en)
French (fr)
Inventor
谢晓冬
郭总杰
王静
钟腾飞
李亚英
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to JP2019563777A priority Critical patent/JP2020537199A/ja
Priority to US16/335,887 priority patent/US11016619B2/en
Priority to EP18859844.5A priority patent/EP3686717A4/en
Publication of WO2019056939A1 publication Critical patent/WO2019056939A1/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
    • 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
    • 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
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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
    • G06F2203/04112—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 disclosure relates to the field of touch technologies, and in particular, to a touch panel, a method of manufacturing the same, and a touch display panel.
  • a touch display device such as a touch screen
  • a touch display device is an inductive display device that calculates contact coordinates based on received input signals for positioning, and mainly includes a touch panel and a touch chip.
  • the touch panel detects the touch position of the user and sends the detected input signal to the touch chip.
  • the touch chip converts the input signal into contact coordinates and sends it to the central processing unit, and receives the signal returned by the central processing unit. Execution to achieve human-computer interaction. With the development of touch screens, people are increasingly demanding the optical performance, electrical performance, appearance and cost of touch screens.
  • An embodiment of the present disclosure provides a touch panel including: a touch substrate; and a plurality of touch electrodes disposed on the touch substrate in a first direction and extending in a second direction different from the first direction Wherein the width of each touch electrode gradually increases or decreases in the second direction.
  • each of the touch electrodes is a metal mesh structure that is truncated in a first direction.
  • the touch panel further includes: a plurality of dummy touch electrodes disposed in the same layer as the plurality of touch electrodes and alternately spaced apart in the first direction, wherein each of the dummy touches The electrode extends in the second direction and is a metal mesh structure that is cut in the first direction.
  • the plurality of touch electrodes and the plurality of dummy touch electrodes constitute a metal mesh layer that is interrupted in the first direction.
  • the material of the metal mesh layer is a flexible material.
  • the metal mesh layer includes a hexagonal mesh opening, and the mesh openings of the metal mesh layer are arranged in a honeycomb shape.
  • the width of each touch electrode gradually increases or decreases linearly in the second direction.
  • the width of each touch electrode gradually increases or decreases stepwise in the second direction.
  • the touch panel further includes a touch chip on a side of the touch substrate, and each touch electrode is connected to the touch chip.
  • An embodiment of the present invention provides a touch display panel, including: a substrate substrate, a plurality of pixel units disposed on the base substrate, and the touch panel in the foregoing embodiment, the touch panel facing the pixel The unit is stacked on the base substrate.
  • a plurality of mesh openings in the metal mesh layer are in one-to-one correspondence with the plurality of pixel units, and an orthographic projection of the each pixel unit on the substrate substrate falls into a grid The opening is within the orthographic projection on the substrate substrate.
  • a plurality of mesh openings in the metal mesh layer are in one-to-one correspondence with the plurality of pixel units, and an orthographic projection of the each pixel unit on the substrate substrate and a mesh opening The orthographic projections on the base substrate coincide.
  • the metal mesh layer is located on a side of the touch substrate facing the pixel unit.
  • the metal mesh layer is located on a side of the touch substrate that faces away from the pixel unit.
  • An embodiment of the present invention provides a touch display panel, including: a base substrate, a plurality of pixel units disposed on the base substrate, and the touch panel described in the foregoing embodiments, the touch panel facing the The pixel unit is stacked on the base substrate.
  • An embodiment of the present disclosure provides a method of manufacturing a touch panel, including: providing a touch substrate, and forming a touch substrate on the touch substrate at intervals on the touch substrate and different from the first direction a plurality of touch electrodes extending in the second direction.
  • forming, on the touch substrate, a plurality of touch electrodes disposed on the touch substrate in a first direction and extending in a second direction different from the first direction comprises: using screen printing The method forms a metal mesh layer on the touch substrate; the metal mesh layer is cut by a patterning process to break the metal mesh layer in the first direction.
  • the metal mesh layer includes a hexagonal mesh opening, and the mesh openings of the metal mesh layer are arranged in a honeycomb shape.
  • forming, on the touch substrate, a plurality of touch electrodes disposed on the touch substrate in a first direction and extending in a second direction different from the first direction comprises: on the touch substrate Depositing a metal layer; patterning the metal layer to form a metal mesh layer that is discontinuous in the first direction.
  • FIG. 1 is a schematic structural diagram of a touch panel before a touch electrode layer is not cut according to an embodiment of the present disclosure
  • 1H is a schematic structural view of a touch panel of a touch panel after being cut according to an embodiment of the present disclosure
  • FIG. 2 is a schematic top plan view of a partial area of a touch display panel according to an embodiment of the present disclosure
  • FIG. 3 is a schematic cross-sectional view of a touch display panel according to an embodiment of the present disclosure
  • FIG. 4 is a schematic cross-sectional view of a touch display panel according to another embodiment of the present disclosure.
  • FIG. 5 is a flowchart of a method for manufacturing a touch panel according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of a method for manufacturing a touch panel according to another embodiment of the present disclosure.
  • the OLED display panel can be bent and has a flexible characteristic, and the OLED touch screen manufactured by the same can be bent.
  • the OLED touch screen is provided with a touch panel and a touch chip on a conventional OLED display panel.
  • the integration of the touch function and the display function is achieved.
  • the OLED touch screen currently needs to be provided with a touch chip on the touch panel, and a complicated signal trace is required between the touch chip and the touch panel, so that the OLED is made.
  • the border of the touch screen is large, which causes the display function of the edge portion opposite to the touch panel on the conventional display screen to be not well realized, and when the touch operation is performed on the OLED touch screen, the touch chip and the signal are The setting of the traces makes the touch position not well detected. Therefore, it is necessary to design a touch display panel and a touch screen capable of accurately implementing the touch display.
  • FIG. 1 is a schematic structural diagram of a touch panel before the touch electrode layer is not cut according to an embodiment of the present disclosure
  • the touch panel includes a touch substrate 1 and a touch electrode layer 2 disposed on the touch substrate 1.
  • the touch electrode layer 2 is a metal mesh layer, for example, a honeycomb metal mesh layer having a plurality of six deformed mesh openings.
  • the touch electrode layer 2 may also be referred to as a metal mesh layer. 2.
  • each of the touch electrodes 5 extending in a second direction different from the first direction, for example, perpendicular to the first direction, and along the edge
  • the width of each touch electrode 5 in the second direction gradually changes, for example, increases or decreases.
  • each of the touch electrodes 5 has an elongated shape extending in a second direction.
  • the width of each touch electrode 5 in the present disclosure refers to a width in the first direction.
  • the extension surface of the touch panel is set to be the plane of the X-axis and the Y-axis in the coordinate system, and the first direction is set to the X-axis direction, and the second direction is set to the Y-axis direction.
  • the two directions are perpendicular to the first direction, and the touch panel determines the touch operation of the user in the X-axis and the Y-axis direction through the touch electrode 5.
  • each touch electrode 5 Corresponding to one coordinate on the X axis, and since each touch electrode 5 extends in the second direction, and the width of the touch electrode 5 gradually increases or decreases along the second direction, for each coordinate of the corresponding X axis In the touch electrode 5, along the Y-axis direction, the touch electrode portions of different widths of the touch electrodes 5 correspond to different coordinates on the Y-axis.
  • the touch electrode 5 When the user performs the touch operation, the touch electrode 5 generates an electrical signal by means of a self-contained manner, and the electrical signal is transmitted to the signal processing unit of the touch panel through the touch electrode 5.
  • Different touch electrodes 5 correspond to the position information of the touch points on the X axis.
  • the touch electrodes 5 of different widths are touched and the self-capacity of the touch electrodes 5 is caused.
  • the amount of change is different and can be resolved by the signal processing unit. That is, the touch electrode portions of different widths of the touch electrodes 5 correspond to the position information of the touch points on the Y axis. That is, the coordinates of the touch point on the Y axis can be determined by the width of the touch electrode 5 at the touch position, and since each touch electrode 5 corresponds to a coordinate on the X axis, different touch electrodes 5 are different on the X axis. coordinate of. Therefore, the coordinates of the touch point on the X axis are determined by the corresponding touch electrodes 5.
  • the touch point position information can be determined by the coordinates of the X axis and the Y axis coordinate.
  • the touch panel can accurately implement touch detection, obtain better touch effects, and improve user experience.
  • the touch panel further includes a touch chip on one side of the touch substrate, and each touch electrode 5 is connected to the touch chip.
  • the touch chip 3 of the touch panel determines the touch operation of the user in the X-axis and Y-axis directions through the touch electrode 5, and each touch electrode 5
  • the touch sensor 3 is connected to the touch panel 3, and the width of the touch electrode 5 is gradually increased or decreased along the second direction.
  • the touch electrode 5 generates an electrical signal by self-capacitance.
  • the control electrode 5 is transmitted to the touch chip 3, and the different touch electrodes 5 correspond to the position information of the touch point on the X axis, and the touch electrode portions of different widths of the touch electrode 5 correspond to the position of the touch point on the Y axis. information.
  • the touch panel 3 is disposed only on the side of the touch substrate 1 and does not occupy the space on the other three sides of the touch panel 1 , so that the touch area where the touch electrodes are located in the touch panel is occupied as much as possible. A larger area enables a narrow bezel design of the touch panel.
  • the touch electrode layer 2 adopts a grid structure when the touch panel is assembled on a touch display panel.
  • the touch electrode layer is a metal mesh layer.
  • the touch electrode layer 2 is not cut and cut, and is a complete metal mesh layer.
  • the dotted line in FIG. 1a shows the touch electrode layer when the touch electrode 5 is formed. 2 is cut off the cut position.
  • FIG. 1h shows the touch electrode 5 formed after the touch electrode layer 2 is cut along the broken line in FIG. 1a. It can be seen that each touch electrode occupies at least one complete mesh at its widest point, and the width of the touch electrode 5 in the Y direction is gradually reduced in this embodiment.
  • the touch electrode layer 2 of the grid-like structure that is, the metal mesh layer 2 is cut by a broken line as shown in FIG. 1a to form a plurality of touch electrodes 5 as shown in FIG. 1h. (a portion enclosed by a dotted line) and a plurality of dummy touch electrodes 9 (a portion framed by a broken line), each adjacent two columns of meshes form a touch electrode 5 extending in the column direction; each touch electrode 5
  • Both of the touch chips 3 are connected to the signal lead-out wires 4 for deriving electrical signals, and the width of the touch electrodes 5 gradually increases or decreases along the column direction of the grid.
  • the width variation of the touch electrode 5 may gradually decrease linearly in the Y direction as shown in FIG. 1h.
  • the width variation of the touch electrode 5 may also be a stepwise change, such as a stepwise increase or decrease in the Y direction, or other forms of gradual change.
  • one touch chip can correspond to a plurality of touch electrodes 5, and each touch electrode 5 corresponds to a position on the X axis.
  • the extension surface of the touch panel is set to the X axis in the coordinate system.
  • the touch panel 3 of the touch panel determines the touch operation of the user in the X-axis and the Y-axis direction through the touch electrode 5, and the touch electrode of the grid structure when the user performs the touch operation 5
  • the electrical signal is generated by the self-contained method, and the electrical signal is transmitted to the signal derivation line 4 through the touch electrode 5, and then the signal derivation line 4 transmits the electrical signal of the touch electrode 5 to the touch chip 3.
  • the width of the touch electrode 5 is gradually increased or decreased along the column direction of the grid. For each touch electrode 5, the touch electrode 5 of different widths is touched by the touch electrode 5
  • the amount of change in capacitance can be determined by the signal processing unit.
  • the touch electrode portion of the touch electrode 5 having different widths corresponds to the position information of the touch point on the Y axis.
  • the touch position is adopted.
  • the touch electrode portions of different widths of the touch electrodes 5 can determine the coordinates of the user's touch operation on the Y axis.
  • Each of the touch electrodes 5 corresponds to a coordinate on the X-axis and is respectively connected to one channel of the touch chip 3. Therefore, the coordinates of the touch operation of the user on the X-axis can be determined through the channel of the touch chip 3. .
  • the touch position information can be determined by the coordinates of the X axis and the Y axis coordinates.
  • the touch chip 3 and the signal extraction trace 4 are disposed on the side of the touch substrate 1, the space on the other three sides of the touch substrate 1 is not required, so that the touch electrodes are located in the touch panel.
  • the touch area can occupy a larger area as much as possible, and the narrow frame design of the touch panel is realized.
  • the touch display panel adopting the touch panel can also adopt a narrow frame design to obtain a better touch display effect and enhance the user. Experience.
  • the touch panel layer 2 may be made of a flexible material.
  • the touch panel matched with the display module also needs to have a certain bending and
  • the touch panel 2 is made of a flexible material, so that the touch panel has a certain bending and flexibility, so that when the touch panel is bent, the touch panel can generate a certain deformation deformation. Avoid brittle fracture between the layers, and improve the bending performance of the touch panel.
  • the touch electrode layer 2 is a metal mesh layer including a hexagonal mesh opening.
  • the touch electrode layer 2 having excellent flexibility can be prepared by using a metal material, and the touch electrode prepared by using the metal material is also prepared. Layer 2 can make the overall touch performance more sensitive and excellent.
  • the touch panel of the mutual capacitive mode is conventionally used, and the touch electrode layer includes two electrode layers, that is, the touch sensing layer Rx and the touch signal emitting layer Tx, and the touch sensing layer Rx and the touch signal are emitted.
  • An insulating layer needs to be disposed between the layers Tx, and at least three reticle plates are required to be formed by a three-layer patterning process.
  • the touch electrode layer in the touch panel is used.
  • the touch function is realized by self-contained method. Therefore, it is only necessary to adopt a patterning process to make a masking process, and the number of mask plates is small, which can beneficially reduce the cost of the product and improve the product.
  • Competitiveness can beneficially reduce the cost of the product and improve the product.
  • the touch panel can remove the dummy touch electrode 9 on the basis of the foregoing embodiment shown in FIG. 1h, and only the touch electrode 5 that implements the touch is retained.
  • the touch electrode layer 2 may also be a transparent electrode of a whole layer, such as an ITO electrode, which is cut into a plurality of touch electrodes 5 spaced apart in the first direction, and is different from the first direction.
  • the second direction for example, perpendicular to the first direction, the width of the touch electrode 5 is gradually changed, and the above touch effect can also be achieved.
  • An embodiment of the present disclosure provides a touch display panel, including the touch panel in the above embodiment.
  • the touch display panel includes a plurality of pixel units 8 and a touch electrode layer in a grid-like structure.
  • the mesh openings are in one-to-one correspondence with the pixel unit 8.
  • the touch display panel further includes a base substrate 7 and a plurality of OLED light emitting layers 6 disposed on the base substrate 7.
  • Each OLED light emitting layer 6 corresponds to one pixel unit 8, and the pixels
  • the unit 8 has a hexagonal structure and is arranged in a honeycomb shape.
  • the grid openings of the touch electrode layer 2, that is, the metal mesh layer are in one-to-one correspondence with the pixel units 8 of the display panel, and each of the pixel units 8 is on the base substrate 7.
  • the orthographic projection falls within an orthographic projection of a grid opening on the substrate, in one embodiment, an orthographic projection of each pixel unit 8 on the substrate substrate 7 and a grid opening on the substrate substrate coincide. In this way, the metal wire of the metal mesh can be avoided to shield the pixel unit, and the reaction sensitivity of the touch electrode 5 is improved, thereby improving the user experience.
  • each mesh of the metal mesh layer is not limited, and may correspond to the size of the pixel unit 8 corresponding to the OLED light emitting layer 6; the mesh opening and the pixel unit 8 may have the same shape, both of which are Hexagon; the shape of the metal grid and the pixel unit 8 may be inconsistent.
  • the shape of the pixel unit 8 is not necessarily a hexagon, and may be a circle, and may also be other irregular patterns, and only need to avoid the metal mesh layer.
  • the metal wire in the middle blocks the pixel unit.
  • the orthographic projection of the metal lines of the metal mesh layer on the substrate substrate is located in the opaque region between the pixel cells 8.
  • the touch display panel has a good optical image removal effect.
  • the position of the touch electrode layer 2 on the touch substrate 1 is as follows:
  • the touch electrode layer 2 is located on a side of the touch substrate 1 facing the pixel unit 8 .
  • the touch electrode layer 2 is simple to manufacture and is easy to implement. Since the touch electrode layer 2 is closer to the OLED light-emitting layer 6 of the corresponding pixel unit 8 , the electrical signal generated by the touch operation is greatly disturbed. The sensitivity of the control operation is better, the touch performance is more excellent, and the touch chip 3 needs to be debugged multiple times to ensure the accuracy of the touch display.
  • the touch electrode layer 2 is located on a side of the touch substrate 1 facing away from the pixel unit 8 .
  • the touch electrode layer 2 is far away from the OLED light-emitting layer 6 of the corresponding pixel unit 8, and the electrical signal generated by the touch operation is less interfered, which makes the touch operation more sensitive and the touch performance is better. .
  • the present disclosure further provides a touch display device, including the touch display panel of any of the above embodiments.
  • the touch display panel provided by any one of the above embodiments can accurately implement the touch detection, obtain a better touch display effect, and improve the user experience. Therefore, the touch display of the touch display device having the touch display panel The effect is better and the user experience is better.
  • An embodiment of the present disclosure provides a method for manufacturing a touch panel. As shown in FIG. 5, the method includes the following steps:
  • a plurality of touch electrodes 5 are disposed on the touch substrate and spaced apart along the first direction and in a second direction different from the first direction, as shown in FIG. 1h.
  • Another embodiment of the present disclosure provides a method for manufacturing a touch panel. As shown in FIG. 6, the method includes the following steps:
  • S603 patterning the metal layer to form a metal mesh layer that is interrupted in the first direction.
  • a plurality of touch electrodes 5 are disposed on the touch substrate and spaced apart along the first direction and in a second direction different from the first direction, as shown in FIG. 1h.

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  • 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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

提供一种触控面板及其制造方法、触控显示面板。触控面板包括：触控基板；以及多个触控电极，沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸，其中，每一触控电极的宽度沿第二方向逐渐增大或减小。

Description

触控面板及其制造方法、触控显示面板
相关申请的交叉引用
本申请要求2017年9月21日提交中国专利局的专利申请201710860530.7的优先权，其全部内容通过引用合并于本申请中。
技术领域
本公开涉及触控技术领域，尤其涉及一种触控面板及其制造方法、触控显示面板。
背景技术
在触控显示技术领域，触控显示装置，例如触控屏是一种根据接收到的输入信号计算触点坐标以进行定位的感应式显示装置，主要包括触控面板和触控芯片。触控面板检测用户的触控位置并将检测到的输入信号发送至触控芯片，触控芯片将输入信号转换成触点坐标并输送至中央处理器，同时接受中央处理器返回的信号并加以执行，实现人机互动。随着触控屏的发展，人们对触控屏的光学性能，电学性能，外观以及成本都提出越来越高的要求。
公开内容
本公开一实施例提供一种触控面板，包括：触控基板；以及多个触控电极，沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸，其中，每一触控电极的宽度沿第二方向逐渐增大或减小。
在一些实施例中，所述每一触控电极为在第一方向上被截断的金属网格状结构。
在一些实施例中，所述触控面板还包括：多个虚设触控电极，与所述多个触控电极同层且沿第一方向上一一交替间隔设置，其中，每个虚设触控电极沿第二方向延伸，为在第一方向上被截断的金属网格状结构，所述多个触控电极和多个虚设触控电极组成在第一方向上间断的金属网格层。
在一些实施例中，所述金属网格层的材料为柔性材料。
在一些实施例中，所述金属网格层包括六边形的网格开口，金属网格层的网格开口呈蜂窝状排列。
在一些实施例中，每一触控电极的宽度沿第二方向呈线性逐渐增大或 减小。
在一些实施例中，每一触控电极的宽度沿第二方向呈阶梯状逐渐增大或减小。
在一些实施例中，所述触控面板还包括位于所述触控基板一侧的触控芯片，所述每一触控电极与触控芯片连接。
本公开一实施例提供一种触控显示面板，包括：衬底基板，多个像素单元，设置在所述衬底基板上，以及前述实施例中的触控面板，触控面板面向所述像素单元与所述衬底基板叠置。
在一些实施例中，所述金属网格层中的多个网格开口与所述多个像素单元一一对应，且所述每个像素单元在衬底基板上的正投影落入一个网格开口在衬底基板上的正投影内。
在一些实施例中，所述金属网格层中的多个网格开口与所述多个像素单元一一对应，且所述每个像素单元在衬底基板上的正投影与一个网格开口在衬底基板上的正投影重合。
在一些实施例中，所述金属网格层位于所述触控基板朝向所述像素单元的一侧。
在一些实施例中，所述金属网格层位于所述触控基板背离所述像素单元的一侧。
本公开一实施例提供一种触控显示面板，包括：衬底基板，多个像素单元，设置在所述衬底基板上，以及前述实施例中所述的触控面板，触控面板面向所述像素单元与所述衬底基板叠置。
本公开一实施例提供一种制造触控面板的方法，包括：提供触控基板，以及在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极。
在一些实施例中，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极包括：采用丝网印刷的方式在触控基板上形成金属网格层；通过构图工艺截断金属网格层以使金属网格层在第一方向上间断。
在一些实施例中，所述金属网格层包括六边形的网格开口，金属网格层的网格开口呈蜂窝状排列。
在一些实施例中，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极包括：在触控基板上沉积金属层；对金属层进行构图形成在第一方向上间断的金属网格层。
附图说明
图1a为本公开一实施例提供的一种触控面板的触控电极层未被切割前的结构示意图；
图1h为本公开一实施例提供的一种触控面板的触控电极层被切割后的结构示意图；
图2为本公开一实施例提供的一种触控显示面板的部分区域的俯视示意图；
图3为本公开一实施例提供的一种触控显示面板的截面结构示意图；
图4为本公开另一实施例提供的一种触控显示面板的截面结构示意图；
图5为本公开一实施例提供的一种制造触控面板的方法的流程图；
图6为本公开另一实施例提供的一种制造触控面板的方法的流程图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
在相关技术中，OLED显示面板可以弯曲，具有可挠的特点，由其制造的OLED触控屏同样具有可以弯曲，OLED触控屏通过在常规的OLED显示面板上设置触控面板和触控芯片实现触控功能和显示功能的集成，由于相关技术中OLED触控屏目前需要在触控面板上设置触控芯片，而且触控芯片与触控面板之间需要布置复杂的信号走线，使得OLED触控屏的边框较大，导致了常规的显示屏上与触控面板相对的边缘部分的显示功能不能较好地实现，并且在OLED触控屏进行触控操作时，由于触控芯片以及信号走线的设置使得触控位置不能很好地被检测出来，因此，需要设计一种能够精确地实现触控检测的触控显示的触控显示面板以及触控屏。
本公开一实施例提供一种触控面板，图1a为本公开一实施例提供的一种触控面板的触控电极层未被切割前的结构示意图；图1h为本公开一实施例提供的一种触控面板的触控电极层被切割后的结构示意图；如图1a、1h所示，触控面板包括触控基板1以及设置在触控基板1上的触控电极层2，本实施例中，触控电极层2为金属网格层，例如具有多个六变形网格开口的蜂窝状金属网格层，本实施例中，触控电极层2亦可以被称为金属网格层2。
将触控电极层2切割截断形成沿第一方向间隔设置的多个触控电极5，每一个触控电极5沿与第一方向不同的第二方向，例如垂直于第一方向延伸，且沿第二方向每一触控电极5的宽度逐渐变化，例如增大或减小。如图1a和1h所示，每个触控电极5均呈沿第二方向延伸的长条状，本公开所述的每触控电极5的宽度是指其沿第一方向上的宽度。
在上述触控面板中，设定触控面板的延展面为坐标系中X轴和Y轴所在平面，设定第一方向为X轴方向，设定第二方向为Y轴方向，此时第二方向垂直于第一方向，触控面板通过触控电极5判断用户在X轴及Y轴方向上的触控操作，由于多个触控电极5沿第一方向设置，每一个触控电极5对应X轴上的一个坐标，另外由于每一个触控电极5沿第二方向延伸，且沿第二方向触控电极5的宽度逐渐增大或减小，对于对应X轴的一个坐标的每个触控电极5，沿Y轴方向，该触控电极5的不同宽度的触控电极部分对应于Y轴上的不同坐标。当用户实施触控操作时，触控电极5通过自容的方式产生电信号，电信号经过触控电极5传导至触控面板的信号处理单元。不同的触控电极5对应触控点在X轴上的位置信息，对于每条触控电极5来说，不同宽度的触控电极部分被触碰时引起的该条触控电极5的自容的变化量不同，并可以由信号处理单元分辩。即触控电极5的不同宽度的触控电极部分对应触控点在Y轴上的位置信息。即通过触控位置处触控电极5的宽度可以确定触控点在Y轴的坐标，而且由于每一个触控电极5对应X轴上的一个坐标，不同的触控电极5对应X轴上不同的坐标。因此，通过对应的触控电极5确定触控点在X轴的坐标。通过上述X轴的坐标和Y轴坐标能够确定触控点位置信息。
因此，上述触控面板能够精确地实现触控检测，获得较好地触控效果， 提升用户体验。
在上述实施例中，触控面板还包括位于触控基板一侧的触控芯片，每一触控电极5与触控芯片连接。
在上述触控面板中，如图1a以及图1h所示，触控面板的触控芯片3通过触控电极5判断用户在X轴、Y轴方向上的触控操作，每一触控电极5与触控芯片3连接，且沿第二方向触控电极5的宽度逐渐增大或减小，当用户实施触控操作时，触控电极5通过自容的方式产生电信号，电信号经过触控电极5传导至触控芯片3，不同的触控电极5对应触控点在X轴上的位置信息，触控电极5的不同宽度的触控电极部分对应触控点在Y轴上的位置信息。本实施例中，触控芯片3仅设置在触控基板1一侧，不需占用触控基板1的其他三侧的空间，使得在触控面板中触控电极所在的触控区域尽可能占据更大的面积，实现触控面板的窄边框设计。
在上述触控面板实现触控的基础上，将该触控面板组装在一触控显示面板时，为了提高触控显示面板的触控显示性能，触控电极层2采用网格状结构，即触控电极层为金属网格层，图1a中，触控电极层2未被切割截断，为完整的金属网格层，图1a中的虚线示出了形成触控电极5时触控电极层2被切割截断的位置。如图1h示出了沿图1a中虚线切割触控电极层2后形成的触控电极5。可见每个触控电极在其最宽处至少占据一个完整的网格，本实施中沿Y方向触控电极5的宽度逐渐减小。
在上述触控面板中，如图1a以及1h所示，网格状结构的触控电极层2即金属网格层2通过图1a所示虚线切割形成如图1h中的多个触控电极5(用虚线框框出的部分)和多个虚设触控电极9(用虚线框框出部分)，每相邻两列的网格形成沿列方向延伸的一个触控电极5；每一个触控电极5均与触控芯片3通过用于导出电信号的信号导出走线4对应相连，且沿网格的列方向触控电极5的宽度逐渐增大或减小。触控电极5的宽度变化可以如图1h所示的沿Y方向逐渐线性减小。在其他实施例中触控电极5的宽度变化也可以是阶段性的变化，例如沿Y方向呈阶梯状增大或减小，还可以是其他形式的逐渐变化。另外，一个触控芯片可以对应多个触控电极5，每一个触控电极5对应X轴上的一个位置，在上述触控面板中，设定触控面板的延展面为坐标系中X轴和Y轴所在平面，触控面板的触控芯 片3通过触控电极5判断用户在X轴、Y轴方向上的触控操作，当用户实施触控操作时，网格状结构的触控电极5通过自容的方式产生电信号，电信号经过触控电极5传导至信号导出走线4，然后信号导出走线4将触控电极5的电信号传输至触控芯片3。沿网格的列方向触控电极5的宽度逐渐增大或减小，于每条触控电极5来说，不同宽度的触控电极部分被触碰时引起的该条触控电极5的自容的变化量不同，可以由信号处理单元分辩。即触控电极5的不同宽度的触控电极部分对应触控点在Y轴上的位置信息，如图1h所示，由于触控电极5的宽度沿Y方向逐渐减小，，通过触控位置处触控电极5的不同宽度的触控电极部分可以确定用户的触控操作在Y轴的坐标。，而且每一个触控电极5对应X轴上的一个坐标，并分别与触控芯片3一个通道相连接，因此，可以通过触控芯片3的通道来确定用户的触控操作在X轴的坐标。通过上述X轴的坐标和Y轴坐标能够确定触控位置信息。如图1h所示，由于触控芯片3和信号导出走线4设置在触控基板1一侧，不需占用触控基板1的其他三侧的空间，使得在触控面板中触控电极所在的触控区域尽可能占据更大的面积，实现触控面板的窄边框设计，，采用该种触摸面板的触控显示面板同样可以采用窄边框设计，获得更好地触控显示效果，提升用户体验。
在上述触控面板实现触控的基础上，为了提高触控面板的柔性弯折性能，使其能够应用于可弯折的柔性触控面板，触控电极层2的材料可以为柔性材料。
在触控显示面板中，由于作为显示模块0LED显示面板可以弯曲，具有可挠的特点，为了保证触控显示面板具有柔性触控特性，与显示模块匹配的触控面板同样需要具有一定的弯曲和可挠特性，因此，触控电极层2采用柔性材料制备，使得触控面板具有一定的弯曲和可挠性能，使得在对触控面板进行弯折时，触控面板能够产生一定的延展形变，避免膜层之间出现脆断的情况，提高了触控面板的弯折性能。
为了获得柔性性能优异的触控电极层2，具体地，如图1a、1h所示，触控电极层2为包括六边形网格开口的金属网格层。
由于金属材料，例如银、铜等具有良好的延展性能的同时具有良好的导电性，因此，采用金属材料制备能够制备柔性性能优异的触控电极层2， 同时，采用金属材料制备的触控电极层2可以使得整个触控性能更加的灵敏和优异。另外，常规采用互容式方式的触控面板，触控电极层包括有两层电极层，即触控感应层Rx和触控信号发射层Tx，而且在触控感应层Rx和触控信号发射层Tx之间需要设置有绝缘层，至少需要使用3张掩模版通过三层构图工艺形成，与常规采用互容式方式的触控面板相比，由于上述触控面板中的触控电极层层为一层金属网格，通过自容的方式实现触控功能，故只需要采用一张掩模版通过一个构图工艺即可制成，掩模版数量较少，能够有益的降低产品的成本，提高产品的竞争力。
在一实施例中，触控面板可以在如图1h所示的前述实施例的基础上，去除虚设触控电极9，仅保留实现触控的触控电极5。
在其他实施例中，触控电极层2还可以是整层的透明电极，例如ITO电极，将其截断为多个沿第一方向间隔设置的触控电极5，并且在不同于第一方向的第二方向，例如垂直于第一方向，上，买个触控电极5的宽度逐渐变化，同样可以实现上述触控效果。
本公开一实施例提供一触控显示面板，包括上述实施例中的触控面板，，如图2所示，触控显示面板包含多个像素单元8，网格状结构中触控电极层的网格开口与像素单元8一一对应。
具体地，如图2-4所示，触控显示面板还包括衬底基板7以及设置在衬底基板7上的多个OLED发光层6，每个OLED发光层6对应一个像素单元8，像素单元8为六边形结构，呈蜂窝状排列，触控电极层2即金属网格层的网格开口与显示面板的像素单元8一一对应，且每个像素单元8在衬底基板7上的正投影落入一个网格开口在衬底基板上的正投影内，在一实施例中，每个像素单元8在衬底基板7上的正投影与一个网格开口在衬底基板上的重合。如此可以避免金属网格的金属线遮蔽像素单元，并提高触控电极5的反应灵敏度，进而提高用户体验。
金属网格层的每个网格的六边形的边长范围不限，可以与OLED发光层6对应的像素单元8的大小相对应；网格开口与像素单元8的形状可以一致，均为六边形；金属网格与像素单元8的形状可以不一致，例如像素单元8的形状不一定是六边形，可以是圆形，还可以为其他不规则的图形，只需要避免金属网格层中的金属线遮挡像素单元即可。
在一实施例中，如图1a、1h以及图2所示，金属网格层的金属线在衬底基板上的正投影位于各像素单元8之间的不透光区域内。
通过光罩掩模版的膜层对位，确保上下膜层套合以使金属网格层在像素单元8所在平面上的投影位于各像素单元8之间的不透光区域内，确保金属网格嵌套在触控显示面板的像素单元8之间的缝隙中，使得触控显示面板具有良好的光学消影效果。
触控电极层2在触控基板1上的位置有以下方式：
在一种方式中，如图3所示，触控电极层2位于触控基板1朝向像素单元8的一侧。
触控电极层2的制作简单，易于实现，而由于此时的触控电极层2距离对应像素单元8的OLED发光层6较近，触控操作产生的电信号受到的干扰较大，为了触控操作的灵敏性更好，触控性能更为优异，需要对触控芯片3进行多次调试，以保证触控显示的精度。
在另一种方式，如图4所示，触控电极层2位于触控基板1背离像素单元8的一侧。
此时的触控电极层2距离对应像素单元8的OLED发光层6较远，触控操作产生的电信号受到的干扰较小，使得触控操作的灵敏性更好，触控性能更为优异。
另外，本公开还提供一种触控显示装置，包括如上述任一实施例中任一的触控显示面板。
由于上述任一实施例提供的触控显示面板能够精确地实现触控检测，获得较好地触控显示效果，提升用户体验，因此，具有该触控显示面板的触控显示装置的触控显示效果较好，用户体验较好。
本公开一实施例提供一种制造触控面板的方法，如图5所示，包括以下步骤：
S501：提供触控基板，
S502：采用丝网印刷的方式在触控基板上形成金属网格层；
S503：通过构图工艺截断金属网格层以使金属网格层在第一方向上间断。
通过上述步骤，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极5，如图1h所示。
本公开另一一实施例提供一种制造触控面板的方法，如图6所示，包括以下步骤：
S601：提供触控基板，
S602：在触控基板上沉积金属层；
S603：对金属层进行构图形成在第一方向上间断的金属网格层。
通过上述步骤，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极5，如图1h所示。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。＝

Claims (18)

  1. 一种触控面板，包括：
    触控基板；以及
    多个触控电极，沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸，
    其中，每一触控电极的宽度沿第二方向逐渐增大或减小。
  2. 根据权利要求1所述的触控面板，其中，所述每一触控电极为在第一方向上被截断的金属网格状结构。
  3. 根据权利要求2所述的触控面板，还包括：
    多个虚设触控电极，与所述多个触控电极同层且沿第一方向上一一交替间隔设置；
    其中，每个虚设触控电极沿第二方向延伸，为在第一方向上被截断的金属网格状结构，所述多个触控电极和多个虚设触控电极组成在第一方向上间断的金属网格层。
  4. 根据权利要求3所述的触控面板，其中，所述金属网格层的材料为柔性材料。
  5. 根据权利要求3所述的触控面板，其中，所述金属网格层包括六边形的网格开口，金属网格层的网格开口呈蜂窝状排列。
  6. 根据权利要求1所述的触控面板，其中，每一触控电极的宽度沿第二方向呈线性逐渐增大或减小。
  7. 根据权利要求1所述的触控面板，其中，每一触控电极的宽度沿第二方向呈阶梯状逐渐增大或减小。
  8. 根据权利要求1所述的触控面板，还包括位于所述触控基板一侧的触控芯片，所述每一触控电极与触控芯片连接。
  9. 一种触控显示面板，包括：
    衬底基板，
    多个像素单元，设置在所述衬底基板上，以及
    权利要求3-5中任一所述的触控面板，触控面板面向所述像素单元与所述衬底基板叠置。
  10. 根据权利要求9所述的触控显示面板，其中所述金属网格层中的 多个网格开口与所述多个像素单元一一对应，且所述每个像素单元在衬底基板上的正投影落入一个网格开口在衬底基板上的正投影内。
  11. 根据权利要求9所述的触控显示面板，其中，所述金属网格层中的多个网格开口与所述多个像素单元一一对应，且所述每个像素单元在衬底基板上的正投影与一个网格开口在衬底基板上的正投影重合。
  12. 根据权利要求9所述的触控显示面板，其中，所述金属网格层位于所述触控基板朝向所述像素单元的一侧。
  13. 根据权利要求9所述的触控显示面板，其中，所述金属网格层位于所述触控基板背离所述像素单元的一侧。
  14. 一种触控显示面板，包括：
    衬底基板，
    多个像素单元，设置在所述衬底基板上，以及
    权利要求1，2，6-8中任一所述的触控面板，触控面板面向所述像素单元与所述衬底基板叠置。
  15. 一种制造触控面板的方法，包括：
    提供触控基板，以及
    在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极。
  16. 根据权利要求15所述的方法，其中，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极包括：
    采用丝网印刷的方式在触控基板上形成金属网格层；
    通过构图工艺截断金属网格层以使金属网格层在第一方向上间断。
  17. 根据权利要求16所述的方法，其中，所述金属网格层包括六边形的网格开口，金属网格层的网格开口呈蜂窝状排列。
  18. 根据权利要求15所述的方法，其中，在触控基板上形成沿第一方向间隔设置在所述触控基板上并沿与第一方向不同的第二方向延伸的多个触控电极包括：
    在触控基板上沉积金属层；
    对金属层进行构图形成在第一方向上间断的金属网格层。
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