WO2020015031A1 - 一种触控显示面板及其制备方法 - Google Patents

一种触控显示面板及其制备方法 Download PDF

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Publication number
WO2020015031A1
WO2020015031A1 PCT/CN2018/099786 CN2018099786W WO2020015031A1 WO 2020015031 A1 WO2020015031 A1 WO 2020015031A1 CN 2018099786 W CN2018099786 W CN 2018099786W WO 2020015031 A1 WO2020015031 A1 WO 2020015031A1
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WIPO (PCT)
Prior art keywords
touch
lead
display panel
metal layer
area
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PCT/CN2018/099786
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English (en)
French (fr)
Inventor
叶剑
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武汉华星光电半导体显示技术有限公司
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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 US16/092,003 priority Critical patent/US20200026423A1/en
Publication of WO2020015031A1 publication Critical patent/WO2020015031A1/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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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

Definitions

  • the present invention relates to the technical field of touch display screens, and in particular, to a touch display panel and a manufacturing method thereof.
  • ITO transparent conductive film
  • the signal traces are usually metal traces, which are located in the peripheral area around the touch electrode pattern. Therefore, in the process, it is necessary to leave corresponding trace areas around the touch electrode pattern to route the above metal traces. However, this trace
  • the width of the area is a key factor that determines the frame size of the entire touch display module.
  • the existing metal wiring method of touch sensors reduces the screen ratio due to the larger width of the wiring area, so the width of the wiring area is reduced. Essential for achieving full screen.
  • the invention provides a touch display panel and a manufacturing method thereof, which can effectively reduce the width of the frame of the touch display panel, enable a narrow frame of the touch display panel, and facilitate the design of a full screen.
  • the present invention provides a touch display panel, including:
  • a display panel including a touch area and a non-touch area located outside the touch area, and a binding area is set in the non-touch area;
  • a first metal layer, an insulating layer, and a second metal layer are sequentially stacked on the display panel;
  • One of the first metal layer and the second metal layer is patterned to form a conductive bridge corresponding to the touch area and arranged in an array, and first leads arranged on both sides of the touch area And one end of the first lead extends to the binding area;
  • the other of the first metal layer and the second metal layer is patterned to form a touch electrode corresponding to the touch area, and second leads arranged on both sides of the touch area, And one end of the second lead extends to the binding region;
  • the insulating layer is provided with a first contact hole at both ends corresponding to the conductive bridge, and a second contact hole is provided at the other end corresponding to the first lead;
  • the touch electrodes and the conductive bridge are both in the shape of a metal grid
  • the touch electrode includes a plurality of mutually independent first electrode chains and a second electrode chain, and the touch electrodes on the first electrode chain are connected through the first contact hole through the conductive bridge, Part of the second electrode chain is connected to the first lead through the second contact hole, and the remaining second electrode chain is connected to the other end of the second lead; the first lead is connected to the first lead
  • the two leads are overlapped or misaligned, and are electrically insulated.
  • the second electrode chain is integrally formed in the first metal layer / the second metal layer patterning process, and the first electrode chain intersects the second electrode chain. Settings.
  • the number of the first leads and the second leads arranged on both sides of the touch area are equal.
  • the first metal layer further includes a third lead, which is arranged on a side of the touch area close to the binding area, and one end of the third lead passes through the insulation layer.
  • a third contact hole is connected to the first electrode chain, and the other end of the third lead wire extends to the binding region.
  • the second metal layer further includes a third lead, which is arranged on a side of the touch area close to the binding area, and one end of the third lead is in contact with the first
  • the electrode chains are connected and extend to the binding region at opposite ends.
  • the invention also provides a method for manufacturing a touch display panel, the method includes the following steps:
  • Step S10 a display panel to be prepared with touch electrodes is provided.
  • the display panel includes a touch area and a non-touch area located outside the touch area, and a binding area is set in the non-touch area.
  • Step S20 preparing a first metal layer on the display panel, forming an array of conductive bridges on the touch area after patterning, and forming first leads on both sides of the touch area, the first leads One end extends to the binding area;
  • step S30 an insulating layer is prepared and patterned, a first contact hole is formed on both ends of the insulating layer corresponding to the conductive bridge, and an opposite end of the first lead is formed on the insulating layer.
  • a second metal layer is prepared. After patterning, a touch electrode is formed in the touch area, and second leads are formed on both sides of the touch area.
  • the touch electrode includes a plurality of mutually independent and intersecting A first electrode chain and a second electrode chain are provided, one end of the second lead is connected to a part of the second electrode chain, and the other end extends to the binding area;
  • the touch electrodes on the first electrode chain are connected through the first contact hole through the conductive bridge, and the remaining second electrode chain is connected to the first lead through the second contact hole.
  • the first lead and the second lead overlap or are offset from each other.
  • the conductive bridge and the first lead are formed through a mask process.
  • the touch electrode and the second lead are formed through a photomask process.
  • the number of the first leads and the second leads arranged on both sides of the touch area are equal.
  • the present invention also provides a touch display panel, including:
  • a display panel including a touch area and a non-touch area located outside the touch area, and a binding area is set in the non-touch area;
  • a first metal layer, an insulating layer, and a second metal layer are sequentially stacked on the display panel;
  • One of the first metal layer and the second metal layer is patterned to form a conductive bridge corresponding to the touch area and arranged in an array, and first leads arranged on both sides of the touch area And one end of the first lead extends to the binding area;
  • the other of the first metal layer and the second metal layer is patterned to form a touch electrode corresponding to the touch area, and second leads arranged on both sides of the touch area, And one end of the second lead extends to the binding region;
  • the insulating layer is provided with a first contact hole at both ends corresponding to the conductive bridge, and a second contact hole is provided at the other end corresponding to the first lead;
  • the touch electrode includes a plurality of mutually independent first electrode chains and a second electrode chain, and the touch electrodes on the first electrode chain are connected through the first contact hole through the conductive bridge, Part of the second electrode chain is connected to the first lead through the second contact hole, and the remaining second electrode chain is connected to the other end of the second lead; the first lead is connected to the first lead
  • the two leads are overlapped or misaligned, and are electrically insulated.
  • the second electrode chain is integrally formed in the first metal layer / the second metal layer patterning process, and the first electrode chain intersects the second electrode chain. Settings.
  • the number of the first leads and the second leads arranged on both sides of the touch area are equal.
  • the first metal layer further includes a third lead, which is arranged on a side of the touch area close to the binding area, and one end of the third lead passes through the insulation layer.
  • a third contact hole is connected to the first electrode chain, and the other end of the third lead wire extends to the binding region.
  • the second metal layer further includes a third lead, which is arranged on a side of the touch area close to the binding area, and one end of the third lead is in contact with the first
  • the electrode chains are connected and extend to the binding region at opposite ends.
  • the beneficial effect of the present invention is that the touch display panel provided by the present invention and the manufacturing method thereof are arranged in such a manner that the leads of the frame portion of the touch display panel are divided into two layers overlapping, partially overlapping or completely staggered.
  • the upper and lower leads are separated by means of an insulating layer, thereby effectively reducing the width of the frame of the touch display panel, enabling the touch display panel to achieve a narrow bezel, and facilitating the design of a full screen.
  • the conductive bridge and the first lead are formed through a photomask, and the touch electrode and the second lead are integrally formed, which simplifies the solution and does not increase the manufacturing cost.
  • FIG. 1 is a schematic structural diagram of a conventional touch display panel
  • FIG. 2 is a flowchart of a method for manufacturing a touch display panel according to an embodiment of the present invention
  • 3A to 3C are schematic plan views of different film layers of a touch display panel according to an embodiment of the present invention.
  • the touch display panel includes touch electrodes 102 on a display panel 101.
  • the touch electrodes 102 include a first electrode chain 103 and a second electrode chain 104. And a first lead 105 and a second lead 106 which are prepared on the same layer as the touch electrode 102; wherein, one of the first leads 105 is used to connect a first electrode chain 103; and a second lead 106 Used to connect a second electrode chain 104. Since two adjacent first leads 105 and second leads 106 need to be insulated from each other, a corresponding area of the edge portion of the display panel 101 needs to be reserved for wiring, although the first leads 105 are as uniform as possible. Scattered to the edge positions on both sides, but this wiring method still forms a wider routing area, which reduces the screen ratio.
  • the present invention is directed to the touch display panel of the prior art.
  • the metal routing method of the frame part forms a wider routing area, thereby reducing the technical problem of screen ratio, this embodiment can solve this defect.
  • the method for manufacturing the touch display panel includes the following steps:
  • Step S10 a display panel to be prepared with touch electrodes is provided.
  • the display panel includes a touch area and a non-touch area located outside the touch area, and a binding area is set in the non-touch area.
  • an AMOLED display panel to be prepared with touch electrodes is provided.
  • a thin film encapsulation layer is formed on the surface of the AMOLED display panel.
  • the AMOLED display panel includes a touch area for preparing the touch electrodes, and is located in the AMOLED display panel.
  • Step S20 preparing a first metal layer on the display panel, forming an array of conductive bridges on the touch area after patterning, and forming first leads on both sides of the touch area, the first leads One end extends to the binding area;
  • the entire first metal layer is formed on the surface of the thin film encapsulation layer by a physical weather deposition method; wherein the material of the first metal layer is, for example, Ti / Al / Ti, or Mo / Other metals such as Cu / Ag and their alloys are not limited here.
  • the first metal layer is patterned by a yellow light etching (dry-etching) process to form the conductive bridges arranged in an array in the touch area, and the non-contacts on both sides of the touch area.
  • the control region forms the first lead, and the first lead is used to connect a part of the touch electrodes.
  • One end of the first lead extends to the binding area, and the other end extends to a preset position on the edge of the touch area; two adjacent first leads are electrically insulated.
  • the conductive bridge and the first lead are formed through a photomask process.
  • step S30 an insulating layer is prepared and patterned, a first contact hole is formed on both ends of the insulating layer corresponding to the conductive bridge, and an opposite end of the first lead is formed on the insulating layer.
  • the entire surface of the insulating layer is first formed on the first metal layer by a chemical weather deposition method, wherein a material of the insulating layer is an inorganic material such as SiNx or SiO2. Then, the insulating layer is patterned by a yellow light etching (dry etching) process, the first contact holes are formed on the insulating layer corresponding to the two ends of the conductive bridge, and the insulating layer corresponds to the first The second contact hole is formed at an end position where a lead is located at an edge of the touch area.
  • a material of the insulating layer is an inorganic material such as SiNx or SiO2.
  • a second metal layer is prepared. After patterning, a touch electrode is formed in the touch area, and second leads are formed on both sides of the touch area.
  • the touch electrode includes a plurality of mutually independent and intersecting A first electrode chain and a second electrode chain are provided, one end of the second lead is connected to a part of the second electrode chain, and the other end extends to the binding area;
  • the entire second metal layer is formed over the insulating layer by a physical meteorological deposition method, wherein the material of the second metal layer is Ti / Al / Ti, or Mo / Cu / Other metals such as Ag and their alloys.
  • the second metal layer is patterned by a yellow light etching (dry etching) process to form the touch electrode and the second lead.
  • the touch electrode includes a plurality of the second electrode chains which are directly connected and connected through the second metal layer in the lateral direction, and are connected and connected through the first bridge via the conductive bridge in the vertical direction. A plurality of said first electrode chains.
  • the first electrode chain and the second electrode chain are independent of each other and are arranged to cross each other.
  • part of the second electrode chain is electrically connected to the first lead through the second contact hole, and the remaining second electrode chain is in direct electrical communication with the second lead formed together.
  • the first lead and the second lead are both used to electrically connect the second electrode chain, and one of the first lead / the second lead is correspondingly connected to one of the second electrode chain.
  • the first lead and the second lead are prepared on different film layers, and may be completely overlapped, or partially overlapped, or completely staggered.
  • the first lead and the second lead are used to transmit a signal on the second electrode chain to a control terminal.
  • the touch electrode and the second lead are formed through a photomask process.
  • the first lead and the second lead are offset from each other to reduce a capacitive resistance load (RC Loading) between the first lead and the second lead.
  • RC Loading capacitive resistance load
  • the second metal layer further includes a third lead, the third lead is made together with the second lead and the touch electrode, and the third lead is located in the non-touch area close to the On one side of the binding region, one end of the third lead is electrically connected to the first electrode chain, and the other end extends to the binding region.
  • the present invention also provides a touch display panel.
  • FIGS. 3A to 3C it is a schematic plan view of different film layers of the touch display panel according to an embodiment of the present invention.
  • the touch display panel includes: a display panel 301.
  • the display panel 301 includes a touch area 304 and a non-touch area located around the touch area 304, and a binding area 305 is provided in the non-touch area; a first metal layer is provided on the display panel 301
  • the first metal layer includes conductive bridges 302 distributed in an array in the touch area, and first leads 303 arranged on both sides of the touch area 304, and one end of the first leads 303 extends To the binding area 305; an insulating layer 306 is provided on the first metal layer, and the insulating layer 306 is provided with first contact holes 307 at both ends corresponding to the conductive bridge 302, and corresponds to the first
  • the other end of a lead 303 is provided with a second contact hole 308; a second metal layer is
  • a part of the second electrode chain 310 is electrically connected to the first lead 303 through the second contact hole 308, and the remaining second electrode chain 310 is directly and electrically connected to the second lead 311;
  • a second electrode chain 310 is connected to the first lead 303 / the second lead 311 correspondingly.
  • the numbers of the first leads 303 and the second leads 311 distributed on both sides of the touch area 304 are equal.
  • the first lead wire 303 and the second lead wire 311 may overlap or partially overlap each other on the upper and lower layers, or may be offset from each other and electrically insulated. As a result, the area occupied by the wiring at the frame position can be saved, and a narrow frame can be realized.
  • the second metal layer further includes a third lead 312, which is arranged on a side of the touch area 304 near the binding area 305.
  • One end of the third lead 312 is connected to the first electrode chain. 309 is connected, and extends into the binding area 305 at the opposite end.
  • the third lead 312 is integrally formed with the second lead 311 and the touch electrode, and the third lead 312 is insulated from the second lead 311.
  • the first metal layer includes a third lead 312 arranged on a side of the touch region 304 near the binding region 305, and one end of the third lead 312 passes through the insulating layer 306.
  • a third contact hole is connected to the first electrode chain 309, and the other end of the third lead 312 extends to the binding region 305.
  • the third lead 312 is integrally formed with the first lead 303 and the conductive bridge 302, and the third lead 312 is insulated from the first lead 303.
  • a capacitance is formed between the first touch electrode 313 on the first electrode chain 309 and the adjacent second touch electrode 314 on the second electrode chain 310, and the first lead 303 and The second lead 311 and the third lead 312 collectively transmit a touch signal generated by the touch electrode to a control terminal.
  • the touch electrodes and the conductive bridge 302 are both in the shape of a metal grid.
  • the interchange of the patterning processes of the first metal layer and the second metal layer in this solution can also achieve the object of the present invention, that is, the first metal layer and the second metal layer of the present invention
  • One of the second metal layers is patterned to form the conductive bridge corresponding to the touch area and the first leads on both sides of the touch area, and the other is patterned to form the touch area.
  • the specific patterning process refer to the foregoing embodiment, and details are not described herein again.
  • the touch display panel provided by the present invention and a preparation method thereof are arranged in such a manner that the leads of the frame part of the touch display panel are divided into two layers overlapping, partially overlapping, or completely spaced apart, and the upper and lower layers are arranged.
  • the leads are separated by means of an insulating layer, thereby effectively reducing the width of the border of the touch display panel, enabling the touch display panel to achieve a narrow border, and facilitating the design of a full screen.
  • the conductive bridge and the first lead are formed through a photomask, and the touch electrode and the second lead are integrally formed, which simplifies the solution and does not increase the manufacturing cost.

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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

一种触控显示面板及其制备方法，包括：显示面板，其包括触控区域及非触控区域；对应所述触控区域设置有触控电极(313，314)，对应所述非触控区域的边框部分设置有连接所述触控电极的引线(303，311，312)；所述引线采用上下两层重叠，或部分重叠，或者完全间隔错开的方式进行走线；且上下两层所述引线之间以绝缘层隔开，从而实现窄边框化。

Description

一种触控显示面板及其制备方法 技术领域
本发明涉及触控显示屏技术领域，尤其涉及一种触控显示面板及其制备方法。
 背景技术
随着全面屏手机越来越受到消费者客户的青睐，因此对整个手机触控显示模组的屏占比要求也越来越高，要求其触摸屏和显示屏的边框越来越窄。
传统的触控传感器，无论是外挂式的，还是Oncell/Incell等集成到显示屏上的，通常可视区内的触控电极由透明导电薄膜(ITO)制作而成，连接面内ITO电极图案的信号走线通常为金属走线，位于触控电极图案外围的周边区域，因此在制程中需要在触控电极图案的外围留出相应的走线区域以布设上述金属走线，然而该走线区域的宽度是决定整个触控显示模组边框大小的关键因素，现有触控传感器的金属走线方式因其较大的走线区域宽度降低了屏占比，因此减小该走线区域宽度对实现全面屏至关重要。
因此，有必要提供一种触控显示面板及其制备方法，以解决现有技术所存在的问题。
 技术问题
本发明提供一种触控显示面板及其制备方法，能够有效减小触控显示面板边框的宽度，能使触控显示面板实现窄边框化，利于实现全面屏的设计。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供一种触控显示面板，包括：
显示面板，所述显示面板包括触控区域以及位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
所述显示面板上依次层叠设置有第一金属层、绝缘层、第二金属层；
所述第一金属层与所述第二金属层中的一者经图案化后形成对应所述触控区域且阵列分布的导电桥，以及排布于所述触控区域两侧的第一引线，且所述第一引线的一端延伸至所述绑定区域；
所述第一金属层与所述第二金属层中的另一者经图案化后形成对应所述触控区域的触控电极，以及排布于所述触控区域两侧的第二引线，且所述第二引线的一端延伸至所述绑定区域；
所述绝缘层在对应所述导电桥两端设置有第一接触孔，在对应所述第一引线的另一端设置有第二接触孔；
所述触控电极与所述导电桥均为金属网格形状；
其中，所述触控电极包括多个相互独立的第一电极链与第二电极链，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，部分所述第二电极链通过所述第二接触孔与所述第一引线连接，剩余的所述第二电极链与所述第二引线的另一端连接；所述第一引线与所述第二引线相互重叠或错位设置，且电性绝缘。
根据本发明一优选实施例，所述第二电极链是所述第一金属层/所述第二金属层图案化制程中一体成型的，所述第一电极链与所述第二电极链交叉设置。
根据本发明一优选实施例，所述触控区域两侧排布的所述第一引线与所述第二引线的数量均相等。
根据本发明一优选实施例，所述第一金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端通过所述绝缘层上的第三接触孔与所述第一电极链连接，所述第三引线的另一端延伸至所述绑定区域。
根据本发明一优选实施例，所述第二金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端与所述第一电极链连接，相对另一端延伸至所述绑定区域。
本发明还提供一种触控显示面板的制备方法，所述方法包括以下步骤：
步骤S10，提供一待制备触控电极的显示面板，所述显示面板包括触控区域与位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
步骤S20，在所述显示面板上制备第一金属层，图案化后在所述触控区域形成阵列分布的导电桥，以及在所述触控区域两侧形成第一引线，所述第一引线一端延伸至所述绑定区域；
步骤S30，制备一层绝缘层并进行图案化，在所述绝缘层上对应所述导电桥的两端形成第一接触孔，以及在所述绝缘层上对应所述第一引线的另一端形成第二接触孔；
步骤S40，制备一层第二金属层，图案化后在所述触控区域形成触控电极，在所述触控区域两侧形成第二引线，所述触控电极包括多个相互独立且交叉设置的第一电极链与第二电极链，所述第二引线一端连接部分所述第二电极链，相对另一端延伸至所述绑定区域；
其中，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，剩余所述第二电极链通过所述第二接触孔与所述第一引线连接，所述第一引线与所述第二引线相互重叠或错位。
根据本发明一优选实施例，所述导电桥与所述第一引线经由一道光罩制程形成。
根据本发明一优选实施例，所述触控电极与所述第二引线经由一道光罩制程形成。
根据本发明一优选实施例，所述第一引线与所述第二引线在所述触控区域两侧排布的数量均相等。
本发明还提供一种触控显示面板，包括：
显示面板，所述显示面板包括触控区域以及位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
所述显示面板上依次层叠设置有第一金属层、绝缘层、第二金属层；
所述第一金属层与所述第二金属层中的一者经图案化后形成对应所述触控区域且阵列分布的导电桥，以及排布于所述触控区域两侧的第一引线，且所述第一引线的一端延伸至所述绑定区域；
所述第一金属层与所述第二金属层中的另一者经图案化后形成对应所述触控区域的触控电极，以及排布于所述触控区域两侧的第二引线，且所述第二引线的一端延伸至所述绑定区域；
所述绝缘层在对应所述导电桥两端设置有第一接触孔，在对应所述第一引线的另一端设置有第二接触孔；
其中，所述触控电极包括多个相互独立的第一电极链与第二电极链，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，部分所述第二电极链通过所述第二接触孔与所述第一引线连接，剩余的所述第二电极链与所述第二引线的另一端连接；所述第一引线与所述第二引线相互重叠或错位设置，且电性绝缘。
根据本发明一优选实施例，所述第二电极链是所述第一金属层/所述第二金属层图案化制程中一体成型的，所述第一电极链与所述第二电极链交叉设置。
根据本发明一优选实施例，所述触控区域两侧排布的所述第一引线与所述第二引线的数量均相等。
根据本发明一优选实施例，所述第一金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端通过所述绝缘层上的第三接触孔与所述第一电极链连接，所述第三引线的另一端延伸至所述绑定区域。
根据本发明一优选实施例，所述第二金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端与所述第一电极链连接，相对另一端延伸至所述绑定区域。
 有益效果
本发明的有益效果为：本发明提供的触控显示面板及其制备方法，通过将触控显示面板的边框部位的引线采用分成上下两层重叠，或者部分重叠，或者完全间隔错开的方式排布，并且将该上下两层的引线采用绝缘层的方式隔开，从而有效减少触控显示面板边框的宽度大小，能使触控显示面板实现窄边框化，有利于实现全面屏的设计。另外，导电桥与第一引线经由一道光罩形成，以及触控电极与第二引线一体成型，使得本方案简便化，不会增加制作成本。
 附图说明
为了更清楚地说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介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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为传统的触控显示面板结构示意图；
图2为本发明实施例提供的触控显示面板的制备方法流程图；
图3A~3C为本发明实施例提供的触控显示面板不同膜层的平面示意图。
 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示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]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。在图中，结构相似的单元是用以相同标号表示。
参阅图1，为传统的触控显示面板结构示意图，该触控显示面板在显示面板101上制备有触控电极102，所述触控电极102包括第一电极链103与第二电极链104，以及与所述触控电极102同层制备的第一引线105与第二引线106；其中，一所述第一引线105用于连接一所述第一电极链103；一所述第二引线106用于连接一所述第二电极链104。由于相邻两所述第一引线105及第二引线106需彼此绝缘设置，因此所述显示面板101的边缘部位需留出相应的区域进行布线，虽然尽可能的将所述第一引线105均匀的分散至两侧的边缘位置，但这种布线方式依然形成较宽的走线区域，从而降低了屏占比。
本发明针对现有技术的触控显示面板，由于边框部位的金属走线方式形成较宽的走线区域，从而降低了屏占比的技术问题，本实施例能够解决该缺陷。
参阅图2，为本发明实施例提供的触控显示面板的制备方法流程图。该触控显示面板的制备方法包括以下步骤：
步骤S10，提供一待制备触控电极的显示面板，所述显示面板包括触控区域与位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
具体地，提供一待制备触控电极的AMOLED显示面板，所述AMOLED显示面板表面形成有薄膜封装层，所述AMOLED显示面板包括用于制备所述触控电极的触控区域，以及位于所述触控区域外围的非触控区域，所述非触控区域用来布设连接所述触控电极的引线，所述非触控区域内还设置有绑定区域，所述引线以延伸至所述绑定区域。
步骤S20，在所述显示面板上制备第一金属层，图案化后在所述触控区域形成阵列分布的导电桥，以及在所述触控区域两侧形成第一引线，所述第一引线一端延伸至所述绑定区域；
具体地，首先通过物理气象沉积的方法，在所述薄膜封装层的表面形成整面的所述第一金属层；其中，所述第一金属层的材料如Ti/Al/Ti，或者Mo/Cu/Ag等其他金属及其合金，此处不做限制。然后通过黄光蚀刻(干刻)工艺图案化所述第一金属层，形成位于所述触控区域的呈阵列分布的所述导电桥，以及在所述触控区域两侧的所述非触控区域形成所述第一引线，所述第一引线用于连接部分所述触控电极。所述第一引线一端延伸至所述绑定区域，另一端延伸至所述触控区域边缘的预设位置；相邻两所述第一引线电绝缘设置。优选的，所述导电桥与所述第一引线经由一道光罩制程形成。
步骤S30，制备一层绝缘层并进行图案化，在所述绝缘层上对应所述导电桥的两端形成第一接触孔，以及在所述绝缘层上对应所述第一引线的另一端形成第二接触孔；
具体地，首先通过化学气象沉积的方法在所述第一金属层上形成整面透明的所述绝缘层，其中，所述绝缘层的材料如SiNx或者SiO2等无机材料。然后通过黄光蚀刻(干刻)的工艺图案化所述绝缘层，在所述绝缘层上对应所述导电桥的两端形成所述第一接触孔，在所述绝缘层对应所述第一引线位于所述触控区域边缘的端部位置形成所述第二接触孔。
步骤S40，制备一层第二金属层，图案化后在所述触控区域形成触控电极，在所述触控区域两侧形成第二引线，所述触控电极包括多个相互独立且交叉设置的第一电极链与第二电极链，所述第二引线一端连接部分所述第二电极链，相对另一端延伸至所述绑定区域；
具体地，首先通过物理气象沉积的方法，在所述绝缘层上方形成整面的所述第二金属层，其中，所述第二金属层的材料如Ti/Al/Ti，或者Mo/Cu/Ag等其他金属及其合金。然后通过黄光蚀刻(干刻)的工艺图案化所述第二金属层形成所述触控电极及所述第二引线。其中，所述触控电极包括在横向直接通过所述第二金属层连接导通的多条所述第二电极链，以及纵向通过所述第一接触孔经由所述导电桥连接导通成的多条所述第一电极链。所述第一电极链与所述第二电极链相互独立且交叉设置。
其中，部分所述第二电极链通过所述第二接触孔与所述第一引线电性连接，剩余的所述第二电极链与一起成型的所述第二引线直接电性连通。所述第一引线与所述第二引线均用于电性连接所述第二电极链，一条所述第一引线/所述第二引线对应连接一条所述第二电极链。所述第一引线与所述第二引线制备于不同膜层上，可以完全重叠，或部分重叠或者完全错开设置。所述第一引线与所述第二引线用于将所述第二电极链上的信号传输至控制端。
优选的，所述触控电极与所述第二引线经由一道光罩制程形成。
优选的，所述第一引线与所述第二引线错位设置，可以减小所述第一引线与所述第二引线之间的电容电阻负载（RC Loading）。
另外，所述第二金属层还包括第三引线，所述第三引线与所述第二引线以及所述触控电极一起制成，所述第三引线位于所述非触控区域靠近所述绑定区域的一侧，所述第三引线一端电性连接所述第一电极链，另一端延伸至所述绑定区域。
本发明还提供一种触控显示面板，参照图3A~3C所示，为本发明实施例提供的触控显示面板不同膜层的平面示意图，该触控显示面板包括：显示面板301，所述显示面板301包括触控区域304以及位于所述触控区域304外围的非触控区域，所述非触控区域内设置有绑定区域305；第一金属层，设置于所述显示面板301上，所述第一金属层包括位于所述触控区域内阵列分布的导电桥302，以及排布于所述触控区域304两侧的第一引线303，且所述第一引线303的一端延伸至所述绑定区域305；绝缘层306，设置于所述第一金属层上，所述绝缘层306在对应所述导电桥302的两端设置有第一接触孔307，在对应所述第一引线303的另一端设置有第二接触孔308；第二金属层，设置于所述绝缘层306上，所述第二金属层包括位于所述触控区域304的触控电极以及排布于所述触控区域304两侧的第二引线311，且所述第二引线311的一端延伸至所述绑定区域305；其中，所述触控电极包括多个相互独立的第一电极链309与第二电极链310，所述第一电极链309上的第一触控电极313通过所述第一接触孔307经由所述导电桥302连接，所述第二电极链310上的第二触控电极314直接通过所述第二金属层连接，所述第一电极链309与所述第二电极链310相互独立且交叉设置。
其中，一部分所述第二电极链310通过所述第二接触孔308与所述第一引线303电性连接，剩余的所述第二电极链310与所述第二引线311直接电性连接；一所述第二电极链310对应连接一所述第一引线303/所述第二引线311。优选的，所述第一引线303以及所述第二引线311在所述触控区域304两侧分布的数量均相等。所述第一引线303与所述第二引线311在上下两层可以相互重叠或部分重叠，或者错位设置，且电性绝缘。由此可节省边框位置布线所占面积，实现窄边框化。
此外，所述第二金属层还包括第三引线312，排布于所述触控区域304靠近所述绑定区域305的一侧，所述第三引线312的一端与所述第一电极链309连接，相对另一端延伸至所述绑定区域305内。所述第三引线312与所述第二引线311以及所述触控电极一体成型，且所述第三引线312与所述第二引线311绝缘设置。
或者，所述第一金属层包括第三引线312，排布于所述触控区域304靠近所述绑定区域305的一侧，所述第三引线312的一端通过所述绝缘层306上的第三接触孔与所述第一电极链309连接，所述第三引线312的另一端延伸至所述绑定区域305。所述第三引线312与所述第一引线303以及所述导电桥302一体成型，且所述第三引线312与所述第一引线303绝缘设置。
所述第一电极链309上的所述第一触控电极313与所述第二电极链310上相邻的所述第二触控电极314之间形成电容，所述第一引线303与所述第二引线311以及所述第三引线312共同将所述触控电极产生的触控信号传输至控制端。
优选的，所述触控电极与所述导电桥302均为金属网格形状。
可以理解的是，本方案中所述第一金属层与所述第二金属层的图案化工艺互换也是可以实现本发明的目的，也就是说本发明的所述第一金属层与所述第二金属层中的一者图案化后形成对应所述触控区域的所述导电桥及所述触控区域两侧的所述第一引线，另一者图案化后形成对应所述触控区域的所述触控电极以及所述触控区域两侧的所述第二引线；然后将所述第一电极链与所述导电桥连接，部分所述第二电极链与所述第一引线连接，剩余所述第二电极链与所述第二引线连接，即可实现目的。具体的图案化工艺可参照上述实施例，此处不再赘述。
本发明提供的触控显示面板及其制备方法，通过将触控显示面板的边框部位的引线采用分成上下两层重叠，或者部分重叠，或者完全间隔错开的方式排布，并且将该上下两层的引线采用绝缘层的方式隔开，从而有效减少触控显示面板边框的宽度大小，能使触控显示面板实现窄边框化，有利于实现全面屏的设计。另外，导电桥与第一引线经由一道光罩形成，以及触控电极与第二引线一体成型，使得本方案简便化，不会增加制作成本。
综上所述，虽然本发明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发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (14)

  1. 一种触控显示面板，其包括：
    显示面板，所述显示面板包括触控区域以及位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
    所述显示面板上依次层叠设置有第一金属层、绝缘层、第二金属层；
    所述第一金属层与所述第二金属层中的一者经图案化后形成对应所述触控区域且阵列分布的导电桥，以及排布于所述触控区域两侧的第一引线，且所述第一引线的一端延伸至所述绑定区域；
    所述第一金属层与所述第二金属层中的另一者经图案化后形成对应所述触控区域的触控电极，以及排布于所述触控区域两侧的第二引线，且所述第二引线的一端延伸至所述绑定区域；
    所述绝缘层在对应所述导电桥两端设置有第一接触孔，在对应所述第一引线的另一端设置有第二接触孔；
    所述触控电极与所述导电桥均为金属网格形状；
    其中，所述触控电极包括多个相互独立的第一电极链与第二电极链，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，部分所述第二电极链通过所述第二接触孔与所述第一引线连接，剩余的所述第二电极链与所述第二引线的另一端连接；所述第一引线与所述第二引线相互重叠或错位设置，且电性绝缘。
  2. 根据权利要求1所述的触控显示面板，其中，所述第二电极链是所述第一金属层/所述第二金属层图案化制程中一体成型的，所述第一电极链与所述第二电极链交叉设置。
  3. 根据权利要求1所述的触控显示面板，其中，所述触控区域两侧排布的所述第一引线与所述第二引线的数量均相等。
  4. 根据权利要求1所述的触控显示面板，其中，所述第一金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端通过所述绝缘层上的第三接触孔与所述第一电极链连接，所述第三引线的另一端延伸至所述绑定区域。
  5. 根据权利要求1所述的触控显示面板，其中，所述第二金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端与所述第一电极链连接，相对另一端延伸至所述绑定区域。
  6. 一种触控显示面板的制备方法，其中，所述方法包括以下步骤：
    步骤S10，提供一待制备触控电极的显示面板，所述显示面板包括触控区域与位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
    步骤S20，在所述显示面板上制备第一金属层，图案化后在所述触控区域形成阵列分布的导电桥，以及在所述触控区域两侧形成第一引线，所述第一引线一端延伸至所述绑定区域；
    步骤S30，制备一层绝缘层并进行图案化，在所述绝缘层上对应所述导电桥的两端形成第一接触孔，以及在所述绝缘层上对应所述第一引线的另一端形成第二接触孔；
    步骤S40，制备一层第二金属层，图案化后在所述触控区域形成触控电极，在所述触控区域两侧形成第二引线，所述触控电极包括多个相互独立且交叉设置的第一电极链与第二电极链，所述第二引线一端连接部分所述第二电极链，相对另一端延伸至所述绑定区域；
    其中，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，剩余所述第二电极链通过所述第二接触孔与所述第一引线连接，所述第一引线与所述第二引线相互重叠或错位。
  7. 根据权利要求6所述的制备方法，其中，所述导电桥与所述第一引线经由一道光罩制程形成。
  8. 根据权利要求6所述的制备方法，其中，所述触控电极与所述第二引线经由一道光罩制程形成。
  9. 根据权利要求6所述的制备方法，其中，所述第一引线与所述第二引线在所述触控区域两侧排布的数量均相等。
  10. 一种触控显示面板，其包括：
    显示面板，所述显示面板包括触控区域以及位于所述触控区域外围的非触控区域，所述非触控区域内设置有绑定区域；
    所述显示面板上依次层叠设置有第一金属层、绝缘层、第二金属层；
    所述第一金属层与所述第二金属层中的一者经图案化后形成对应所述触控区域且阵列分布的导电桥，以及排布于所述触控区域两侧的第一引线，且所述第一引线的一端延伸至所述绑定区域；
    所述第一金属层与所述第二金属层中的另一者经图案化后形成对应所述触控区域的触控电极，以及排布于所述触控区域两侧的第二引线，且所述第二引线的一端延伸至所述绑定区域；
    所述绝缘层在对应所述导电桥两端设置有第一接触孔，在对应所述第一引线的另一端设置有第二接触孔；
    其中，所述触控电极包括多个相互独立的第一电极链与第二电极链，所述第一电极链上的所述触控电极通过所述第一接触孔经由所述导电桥连接，部分所述第二电极链通过所述第二接触孔与所述第一引线连接，剩余的所述第二电极链与所述第二引线的另一端连接；所述第一引线与所述第二引线相互重叠或错位设置，且电性绝缘。
  11. 根据权利要求10所述的触控显示面板，其中，所述第二电极链是所述第一金属层/所述第二金属层图案化制程中一体成型的，所述第一电极链与所述第二电极链交叉设置。
  12. 根据权利要求10所述的触控显示面板，其中，所述触控区域两侧排布的所述第一引线与所述第二引线的数量均相等。
  13. 根据权利要求10所述的触控显示面板，其中，所述第一金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端通过所述绝缘层上的第三接触孔与所述第一电极链连接，所述第三引线的另一端延伸至所述绑定区域。
  14. 根据权利要求10所述的触控显示面板，其中，所述第二金属层还包括第三引线，排布于所述触控区域靠近所述绑定区域的一侧，所述第三引线的一端与所述第一电极链连接，相对另一端延伸至所述绑定区域。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109375826B (zh) * 2018-12-13 2020-05-22 武汉华星光电半导体显示技术有限公司 一种触控屏、显示装置
CN110275650B (zh) * 2019-06-27 2022-03-29 昆山国显光电有限公司 触摸感应装置、触控显示面板及触控显示面板母板
CN111045552A (zh) * 2019-12-31 2020-04-21 信利（惠州）智能显示有限公司 触控面板及触控显示屏
CN111613597A (zh) * 2020-05-18 2020-09-01 武汉华星光电半导体显示技术有限公司 绑定区电路

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140177137A1 (en) * 2012-12-21 2014-06-26 Avct Optical Electronic Co., Ltd Touch panel
CN105204683A (zh) * 2015-09-18 2015-12-30 京东方科技集团股份有限公司 触控基板及其制作方法和显示装置
CN106293209A (zh) * 2016-07-29 2017-01-04 厦门天马微电子有限公司 一种集成触控显示面板及其触控显示设备
CN107765917A (zh) * 2017-10-18 2018-03-06 京东方科技集团股份有限公司 一种触控面板的制备方法、触控面板和触控装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102622114B (zh) * 2011-01-28 2015-03-25 华映科技（集团）股份有限公司 一种触控面板的感应装置
TWI507940B (zh) * 2013-07-17 2015-11-11 Au Optronics Corp 觸控面板及觸控顯示面板
CN103513825A (zh) * 2013-09-17 2014-01-15 业成光电（深圳）有限公司 触控装置
CN104536610B (zh) * 2014-12-31 2018-02-02 上海天马有机发光显示技术有限公司 一种触控面板、触控显示装置及其制作方法
CN106354288A (zh) * 2015-07-15 2017-01-25 深圳莱宝高科技股份有限公司 一种触控面板及其制作方法
KR20180075784A (ko) * 2016-12-26 2018-07-05 삼성디스플레이 주식회사 터치 센서 및 이를 구비한 표시 장치
CN107491222A (zh) * 2017-09-01 2017-12-19 业成科技（成都）有限公司 触控面板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140177137A1 (en) * 2012-12-21 2014-06-26 Avct Optical Electronic Co., Ltd Touch panel
CN105204683A (zh) * 2015-09-18 2015-12-30 京东方科技集团股份有限公司 触控基板及其制作方法和显示装置
CN106293209A (zh) * 2016-07-29 2017-01-04 厦门天马微电子有限公司 一种集成触控显示面板及其触控显示设备
CN107765917A (zh) * 2017-10-18 2018-03-06 京东方科技集团股份有限公司 一种触控面板的制备方法、触控面板和触控装置

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