WO2019196338A1 - 金属网格触控显示结构及其制作方法 - Google Patents

金属网格触控显示结构及其制作方法 Download PDF

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Publication number
WO2019196338A1
WO2019196338A1 PCT/CN2018/106334 CN2018106334W WO2019196338A1 WO 2019196338 A1 WO2019196338 A1 WO 2019196338A1 CN 2018106334 W CN2018106334 W CN 2018106334W WO 2019196338 A1 WO2019196338 A1 WO 2019196338A1
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Prior art keywords
metal
metal line
grid
protective layer
bridge point
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PCT/CN2018/106334
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English (en)
French (fr)
Inventor
冯校亮
李尊伟
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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 US16/300,921 priority Critical patent/US20190317631A1/en
Publication of WO2019196338A1 publication Critical patent/WO2019196338A1/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
    • G06F3/044—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
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a metal grid touch display structure and a method for fabricating the same.
  • Touch technology plays a very important role as a display assistive technology, especially a capacitive touch panel.
  • the existing capacitive touch panel manufacturing technology has an Out Cell, an On Cell, and an In Cell, and the external type has FF (Film to Film).
  • FF Frm to Film
  • GF Glass to Film
  • GG Glass to Glass
  • OGS One Glass Solution
  • Major display panel manufacturers have successively developed and advocated external and embedded technologies, and they have become mainstream.
  • ITO indium tin oxide
  • the capacitive touch display panels on the market are mainly mutual capacitance type, and the mutual capacitance has the advantage that multi-touch can be realized.
  • the existing mutual-capacitive touch screen generally adopts an indium tin oxide material on the surface of the glass panel to form a lateral electrode and a longitudinal electrode, and a capacitor is formed at a place where the two sets of electrodes intersect, and the lateral coordinate and the longitudinal coordinate are respectively determined according to the change of the capacitance before and after the touch. Then form the touch coordinates of the plane.
  • the object of the present invention is to provide a metal mesh (Metal Mesh) touch display structure, which can increase the selection of materials for making touch lines.
  • Another object of the present invention is to provide a method for fabricating a metal grid touch display structure, and to increase an alternative material for making a touch line.
  • the present invention provides a metal grid touch display structure, comprising: a display component and a metal mesh structure disposed on the display component; the metal mesh structure includes a bridge disposed on the display component a first protective layer disposed on the bridge point, disposed on the first protective layer, a first metal line formed of a same layer of metal for forming a mutual capacitance first direction electrode, and a second capacitance for forming a mutual capacitance a second metal line of the directional electrode, and a second protective layer disposed on the first metal line and the second metal line; the first metal line and the second metal line are insulated from each other, and the first metal line is formed to correspond to each other a grid pattern of a shape of the first direction electrode of the capacitor, the second metal line forming a grid pattern corresponding to the shape of the second direction electrode of the mutual capacitance; the first protection layer is provided with a through hole corresponding to the bridge point, The second metal line is connected to the bridge point through the through hole; the grid pattern of the grid
  • the grid size of the grid pattern is substantially equal to or substantially an integer multiple of the sub-pixel size of the display component.
  • the metal grid structure further includes an edge trace and a bonding pad, the edge trace is disposed at an edge of the metal grid structure, and the bonding pad is disposed at one end of the metal grid structure, the first The metal lines and the second metal lines are respectively connected to the respective bonding pads by respective edge traces.
  • the bonding pad is connected to an external driving chip that provides a driving signal.
  • the thickness of the first metal line and the second metal line are designed according to the standard that the naked eye cannot distinguish.
  • the first protective layer is silicon nitride or an organic thin film.
  • the second protective layer is silicon nitride or an organic film.
  • the display component is a TFT-LCD display panel or an OLED display panel.
  • the display component is a flexible display panel, and the first protective layer and the second protective layer are flexible materials.
  • the present invention also provides a method for fabricating a metal grid touch display structure according to any of the above, comprising:
  • Step 10 forming a first layer of metal on the display component to form a bridge point
  • Step 20 forming a first protective layer on the bridge point
  • Step 30 forming a through hole on the first protective layer, the position of the through hole corresponding to the bridge point;
  • Step 40 forming a second layer of metal on the first protective layer to form a first metal line and a second metal line, wherein the second metal line is connected to the bridge point through the through hole;
  • Step 50 fabricating a second protective layer on the first metal line and the second metal line.
  • the metal grid touch display structure and the manufacturing method thereof of the present invention can meet the demand by using a conventional metal material, and the materials are widely used; the touch touch is more precise and sensitive, and the line is finer, and the touch resolution can be
  • the metal grid line is hidden between the sub-pixels, does not occupy the pixel space, and does not affect the display aperture ratio; the bridge point and the metal circuit double-layer circuit rely on the through-hole contact, and the contact points are many, which can effectively avoid the bad circuit.
  • High yield can be used in both LCD and OLED processes; it can be used for both hard and flexible products.
  • FIG. 1 is a cross-sectional structural view of a metal grid touch display structure according to a preferred embodiment of the present invention
  • FIG. 2 is a top plan view of a metal grid touch display structure according to a preferred embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a grid pattern and a sub-pixel according to a preferred embodiment of the metal grid touch display structure of the present invention
  • FIG. 4 is a schematic diagram of a sub-pixel position of a metal grid touch display structure according to a preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a preferred embodiment of a metal grid touch display structure applied to a flexible display panel according to the present invention.
  • the invention discloses a metal grid touch display structure, which is integrated with touch and display and can be widely used in a display panel.
  • the metal grid touch display structure of the present invention mainly comprises: a display component 700 and is disposed on a metal grid structure on the display assembly 700.
  • the metal grid structure mainly includes a bridge point 300 disposed on the display assembly 700.
  • the first protection layer 800 disposed on the bridge point 300 is disposed on the first protection layer.
  • the first direction of the mutual capacitance may be a lateral direction (X-axis direction), and the second direction of the mutual capacitance may be a vertical direction (Y-axis direction)
  • the electrodes in the first direction and the second direction are staggered, specifically, perpendicular to each other; a grid pattern of the metal grid electrodes in the first direction and the second direction of the mutual capacitance may be preset, the first metal
  • the circuit 100 and the second metal line 200 are insulated from each other, that is, the electrodes in the two directions of ensuring mutual capacitance are insulated from each other, and the first metal line 100 forms a grid pattern corresponding to the shape of the first direction electrode of the mutual
  • the second metal line 200 can communicate with the bridge point 300 through the through hole 310.
  • the positions of the through hole 310 and the bridge point 300 can be based on mutual capacitance.
  • the electrode shape is predetermined.
  • the bridge point 300 may be disposed between the second metal lines 200 separated by the first metal line 100 and required to be connected to each other, that is, electrodes disposed in two directions of mutual capacitance.
  • the first protective layer 800 is provided with a through hole 310 corresponding to the bridge point 300 and the second metal line 200 that needs to be connected to each other so that the second metal line 200 that needs to be connected to each other can be Through vias 310 by a bridge for communication point 300, while maintaining the first metal line 100 of the second metal line 200 and insulated from each other, thereby avoiding mutual capacitance electrode contacting both directions.
  • the production process mainly includes:
  • Step 10 making a first layer of metal on the display assembly 700 to form a bridge point 300.
  • the display component 700 can be a TFT-LCD display panel (consisting of a TFT substrate + CF substrate + liquid crystal) or an OLED display panel (composed of a TFT substrate + OLED) on which the bridge assembly 300 can be formed.
  • the first layer of metal is a TFT-LCD display panel (consisting of a TFT substrate + CF substrate + liquid crystal) or an OLED display panel (composed of a TFT substrate + OLED) on which the bridge assembly 300 can be formed.
  • Step 20 Create a first protective layer 800 on the bridge point 300. After the bridge 300 is formed, the first protective layer 800 is formed.
  • the first protective layer 800 may be silicon nitride (SiNx) or an organic thin film having an insulating function and high transmittance.
  • Step 30 The through hole 310 on the first protective layer 800 is formed, and the position of the through hole 310 corresponds to the bridge point 300.
  • the vias 310 are exposed by the vias 310.
  • the positions of the vias 310 and the bridges 300 can be determined according to a pre-designed mutual capacitance electrode shape, that is, a grid pattern, that is, according to the positions at which the electrodes are staggered in both directions of mutual capacitance.
  • Step 40 A second layer of metal is formed on the first protective layer 800 to form a first metal line 100 and a second metal line 200.
  • the second metal line 200 may communicate with the bridge point 300 through the through hole 310.
  • the first metal line 100 (X-axis direction) and the second metal line 200 (Y-axis direction) are formed by using the second layer of metal, wherein the second metal line 200 is connected to the bridge point 300 through the through hole 310, thereby
  • the grid pattern of the grid electrodes respectively forms a corresponding communication state between the first metal lines 100 and a corresponding communication state between the second metal lines 200.
  • Step 50 forming a second protective layer 900 on the first metal line 100 and the second metal line 200.
  • a second protective layer 900 can be used.
  • the material of this layer can also be silicon nitride (SiNx), or an organic film with a certain hardness, insulation function and high transmittance to protect the metal circuit and avoid scratching. And electrostatic breakdown.
  • FIG. 2 is a top plan view of a metal grid touch display structure according to a preferred embodiment of the present invention.
  • a grid pattern corresponding to the shape of the mutual capacitance lateral electrode and a grid pattern corresponding to the shape of the mutual capacitance longitudinal electrode are formed.
  • the grid pattern formed by the horizontally conductive first metal lines 100 serves as a mutual capacitance lateral electrode
  • the grid pattern formed by the second metal lines 200 vertically connected in each row serves as a mutual capacitance longitudinal electrode
  • the mutual capacitance lateral electrodes may correspond to an edge trace 110 disposed at an edge of the metal grid structure
  • each mutual capacitance longitudinal electrode may correspond to an edge trace 210 disposed at an edge of the metal grid structure, and the edge is routed by the edge 110, 210 are respectively connected to a bonding pad (500) disposed at one end of the metal grid structure, thereby leading the first metal line 100 and the second metal line 200 out of the display component of the metal grid touch display structure.
  • the pixel area is connected to the bonding pad 500, and finally can be connected to the external driving chip through the bonding pad 500 to provide a driving signal for implementing the touch driving.
  • FIG. 3 is a schematic diagram of a grid pattern and a sub-pixel according to a preferred embodiment of the metal grid touch display structure of the present invention
  • FIG. 4 is a preferred embodiment of the metal grid touch display structure of the present invention.
  • the metal traces are opaque, which may cause the lines to be exposed.
  • a grid pattern of a grid pattern formed by the distribution of the first metal line 100, the second metal line 200, the via 310, and the bridge 300 is formed on the light shielding layer 610 between the sub-pixels 600 of the display assembly.
  • the grid size of the grid pattern may be substantially equal to or substantially the size of the sub-pixel 600 of the display component. It is an integer multiple of the size of the sub-pixel 600; the present invention can avoid the exposure of the line by connecting the distribution of the grid lines formed by the metal lines with the distribution of the sub-pixels 600 of various colors (R, G, B), without affecting the The aperture ratio is displayed.
  • the present invention can also be selected to design the thickness of the first metal line 100, the second metal line 200, and the bridge point 300 to be indistinguishable from the naked eye.
  • the metal wire By making the metal wire into a finer wire, the degree of unrecognizable by the naked eye can be achieved, so that the metal wire is not seen and the metal wire is eliminated.
  • the touch is more precise and sensitive, the lines are more detailed, and the touch resolution can be higher.
  • the invention provides a metal grid touch display structure and a manufacturing method thereof.
  • a touch line is prepared, an optional material is increased, and different materials and solutions can be designed according to different requirements; the invention can be used in a conventional display panel.
  • it can also be used to make flexible touch solutions, which are suitable for making touch lines of flexible display panels.
  • FIG. 5 it is a schematic diagram of a preferred embodiment of a metal grid touch display structure applied to a flexible display panel.
  • a metal mesh structure corresponding to the shape of the mutual capacitance electrode in two directions is formed, which is disposed on the flexible display panel and can be flexible
  • the display panel is bent and changed; at this time, the film structure of the metal mesh structure in FIG. 1 may remain unchanged, but the material may be different, and the first protective layer 800 and the second protective layer 900 tend to be selected in the material selection.
  • Flexible material
  • the metal grid touch display structure and the manufacturing method thereof of the present invention can meet the demand by using a conventional metal material, and the materials are widely used; the touch touch is more precise and sensitive, and the line is finer, and the touch resolution can be
  • the metal grid line is hidden between the sub-pixels, does not occupy the pixel space, and does not affect the display aperture ratio; the bridge point and the metal circuit double-layer circuit rely on the through-hole contact, and the contact points are many, which can effectively avoid the bad circuit.
  • High yield can be used in both LCD and OLED processes; it can be used for both hard and flexible products.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种金属网格触控显示结构及其制作方法。该金属网格触控显示结构包括：显示组件（700）和金属网格结构；该金属网格结构包括桥点（300），第一保护层（800），第一金属线路（100）和第二金属线路（200），以及第二保护层（900）；该第一金属线路（100）与第二金属线路（200）相互绝缘，该第一金属线路（100）形成对应于互电容第一方向电极形状的网格图案，该第二金属线路（200）形成对应于互电容第二方向电极形状的网格图案；所述第一保护层（800）设有对应于所述桥点（300）的通孔（310），所述第二金属线路（200）通过所述通孔（310）和桥点（300）连通；所述网格图案的网格线路制作于该显示组件（700）的子像素（600）间的遮光层（610）上。还提供了相应的制作方法。该金属网格触控显示结构及其制作方法使触控线路取材广泛，常规金属材料即可满足需求。

Description

金属网格触控显示结构及其制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种金属网格触控显示结构及其制作方法。
背景技术
随着技术的发展，显示技术越发多元化，OLED和LCD之争也代表着各种技术流派的激烈竞争。尤其是在要求精密度更高的手机(Mobile)领域，因为要搭载触控装置，技术复杂度更高。当前技术状态下，LCD由于需要液晶控制光线，一般都是硬质屏幕；OLED由于不再使用液晶材料，除了能在硬质基底上制作外，也适用于柔性(Flexible)材质制作，因此普遍把OLED作为未来限制的趋势。
触控(Touch)技术作为一种显示辅助技术，尤其是电容式触控面板，发挥着非常重要的作用。现有的电容式触控面板的制作技术按照结构有外挂式(Out Cell)、外嵌式(On cell)、内嵌式(In Cell)之分，其中外挂式有FF(Film to Film)、GF(Glass to Film)、GG(Glass to Glass)、OGS(One Glass Solution)等几种技术为代表。随着技术的进步，触控和显示结合愈来愈紧密，各大显示面板厂陆续研发出并倡导外嵌式、内嵌式技术，遂成为主流。外嵌式、内嵌式技术各种各样，多是用透明电极作为导电材料，或单层或多层，不一而足，在考虑触控性能之外，还要考虑到透过率、杂讯的处理，这就导致了可选择的材料较少(只有氧化铟锡(ITO)或者透明纳米银等可以使用)。
目前市场上的电容式触控显示面板主要为互电容式，互电容的优点在于可实现多点触控。现有互电容式触摸屏一般是在玻璃面板表面用氧化铟锡材料制成横向电极与纵向电极，两组电极交叉的地方会形成电容，根据触摸前后电容的变化，分别确定横向坐标与纵向坐标，然后组成平面的触摸坐标。
发明内容
因此，本发明的目的在于提供一种金属网格(Metal Mesh)触控显示结构，增加制作触控线路的可选择材料。
本发明的另一目的在于提供一种金属网格触控显示结构的制作方法， 增加制作触控线路的可选择材料。
为实现上述目的，本发明提供了一种金属网格触控显示结构，包括：显示组件和设置于该显示组件上的金属网格结构；该金属网格结构包括设置于该显示组件上的桥点，设置于该桥点上的第一保护层，设置于该第一保护层上由同一层金属制作的用于形成互电容第一方向电极的第一金属线路和用于形成互电容第二方向电极的第二金属线路，以及设置于该第一金属线路和第二金属线路上的第二保护层；该第一金属线路与第二金属线路相互绝缘，该第一金属线路形成对应于互电容第一方向电极形状的网格图案，该第二金属线路形成对应于互电容第二方向电极形状的网格图案；所述第一保护层设有对应于所述桥点的通孔，所述第二金属线路通过所述通孔和桥点连通；所述网格图案的网格线路制作于该显示组件的子像素间的遮光层上。
其中，所述网格图案的网格大小与该显示组件的子像素大小大致等同或者大致是子像素大小的整数倍数。
其中，该金属网格结构还包括边缘走线和绑定焊垫，该边缘走线设置于该金属网格结构的边缘，该绑定焊垫设置于该金属网格结构的一端，该第一金属线路和第二金属线路分别由相应的边缘走线连接至相应的绑定焊垫。
其中，所述绑定焊垫与提供驱动信号的外部驱动芯片连接。
其中，该第一金属线路和第二金属线路的粗细按照裸眼分辨不出的标准进行设计。
其中，该第一保护层为氮化硅或有机薄膜。
其中，该第二保护层为氮化硅或有机薄膜。
其中，该显示组件为TFT-LCD显示面板或OLED显示面板。
其中，该显示组件为柔性显示面板，该第一保护层和第二保护层为柔性材质。
本发明还提供了上述任一所述的金属网格触控显示结构的制作方法，包括：
步骤10、在显示组件上制作第一层金属，形成桥点；
步骤20、在该桥点上制作第一保护层；
步骤30、制作该第一保护层上的通孔，所述通孔的位置与所述桥点对应；
步骤40、在该第一保护层上制作第二层金属，形成第一金属线路和第二金属线路，所述第二金属线路通过所述通孔和桥点连通；
步骤50、在该第一金属线路和第二金属线路上制作第二保护层。
综上所述，本发明金属网格触控显示结构及其制作方法，使用常规金属材料即可满足需求，取材广泛；触控触感更为精细、灵敏，线路更为细密，触控分辨率可更高；金属网格线路隐藏于子像素之间，不占用像素空间，不会影响到显示开口率；桥点、金属线路双层电路依靠通孔接触，接触点多，可有效避免断路不良，良率高；既可用于LCD外嵌式工艺，也可用于OLED工艺；既可以用于硬屏产品，也可用于柔性产品。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为本发明金属网格触控显示结构一较佳实施例的剖面结构示意图；
图2为本发明金属网格触控显示结构一较佳实施例的俯视示意图；
图3为本发明金属网格触控显示结构一较佳实施例的网格图案与子像素对照示意图；
图4为本发明金属网格触控显示结构一较佳实施例的子像素位置示意图；
图5为本发明金属网格触控显示结构一较佳实施例应用于柔性显示面板的示意图。
具体实施方式
图1为本发明金属网格触控显示结构一较佳实施例的剖面结构示意图。本发明公开一种金属网格触控显示结构，该结构集触控与显示为一体，可广泛应用于显示面板中，本发明的金属网格触控显示结构主要包括：显示组件700和设置于该显示组件700上的金属网格结构；该金属网格结构主要包括设置于该显示组件700上的桥点300，设置于该桥点300上的第一保护层800，设置于该第一保护层800上由同一层金属制作的用于形成互电容第一方向电极的第一金属线路100和用于形成互电容第二方向电极的第二金属线路200，以及设置于该第一金属线路100和第二金属线路200上的第二保护层900；以一般互电容式触摸屏为例，互电容第一方向可以为横向(X轴方向)，互电容第二方向可以为纵向(Y轴方向)，第一方向和第二方向的电极相交错，具体来说可以是互相垂直；可以预先设定互电容第一方向和第二方向的金属网格电极的网格图案，该第一金属线路100与第二金属 线路200相互绝缘，也就是确保互电容的两个方向的电极相互绝缘，由第一金属线路100形成对应于互电容第一方向电极形状的网格图案，由第二金属线路200形成对应于互电容第二方向电极形状的网格图案；本发明将网格线路分布与子像素分布联系起来，将网格线路制作于该显示组件700的子像素间的遮光层上；第一保护层800设有对应于桥点300的通孔310，第二金属线路200可以通过通孔310和桥点300连通；通孔310和桥点300的位置可以根据互电容两个方向的电极形状预先确定，在此较佳实施例中，桥点300可以设置于被第一金属线路100分隔而需要相互连接的第二金属线路200之间，也就是设置在互电容两个方向的电极发生交错的位置，第一保护层800对应于桥点300和需要相互连接的第二金属线路200设有通孔310以使需要相互连接的第二金属线路200可以通过通孔310由桥点300进行连通，同时保持第一金属线路100与第二金属线路200相互绝缘，从而避免互电容两个方向的电极接触。
制作过程主要包括：
步骤10、在显示组件700上制作第一层金属，形成桥点300。显示组件700可以是TFT-LCD显示面板(由TFT基板+CF基板+液晶组成)，也可以是OLED显示面板(由TFT基板+OLED组成)，在显示组件700上制作用于形成桥点300的第一层金属。
步骤20、在该桥点300上制作第一保护层800。形成桥点300之后制作第一保护层800，第一保护层800可以是氮化硅(SiNx)，也可以是具有绝缘功能、高透过率的有机薄膜。
步骤30、制作该第一保护层800上的通孔310，通孔310的位置与桥点300对应。利用通孔310使桥点300露出来，通孔310和桥点300的位置可以根据预先设计的互电容电极形状即网格图案确定，即根据互电容两方向电极发生交错的位置来确定。
步骤40、在该第一保护层800上制作第二层金属，形成第一金属线路100和第二金属线路200，第二金属线路200可以通过通孔310和桥点300连通。利用第二层金属制作第一金属线路100(X轴方向)、第二金属线路200(Y轴方向)，其中第二金属线路200通过通孔310和桥点300相连接，从而根据互电容金属网格电极的网格图案，分别形成第一金属线路100之间相应的连通状态、第二金属线路200之间相应的连通状态。
步骤50、在该第一金属线路100和第二金属线路200上制作第二保护层900。最后再做第二层保护层900，这一层的材质也可以是氮化硅(SiNx)，也可以是具有一定硬度、绝缘功能、高透过率的有机薄膜，保护金属线路， 避免划伤和静电击穿。
参见图2，其为本发明金属网格触控显示结构一较佳实施例的俯视示意图。通过第一金属线路100，第二金属线路200，通孔310和桥点300的分布，形成了对应于互电容横向电极形状的网格图案，以及对应于互电容纵向电极形状的网格图案，每行横向导通的第一金属线路100所形成的网格图案作为一个互电容横向电极，每行纵向导通的第二金属线路200所形成的网格图案作为一个互电容纵向电极，每个互电容横向电极可以对应于一设置于该金属网格结构边缘的边缘走线110，每个互电容纵向电极可以对应于一设置于该金属网格结构边缘的边缘走线210，由边缘走线110、210分别连接至设置于该金属网格结构一端的绑定焊垫(Bonding Pad)500，从而将第一金属线路100和第二金属线路200引出金属网格触控显示结构的显示组件的像素区，连接至绑定焊垫500，最终通过绑定焊垫500可以与外部的驱动芯片连接，提供驱动信号，实现触控驱动。
参见图3及图4，图3为本发明金属网格触控显示结构一较佳实施例的网格图案与子像素对照示意图，图4为本发明金属网格触控显示结构一较佳实施例的子像素位置示意图。一般的金属网格结构的网格图案存在金属走线不透明，易造成线路外露的现象。本发明中，将第一金属线路100，第二金属线路200，通孔310和桥点300的分布所形成的网格图案的网格线路制作于显示组件的子像素600间的遮光层610上；由于本发明将网格线路分布与各种颜色(R，G，B)子像素600的分布联系起来，因此网格图案的网格大小与显示组件的子像素600大小可以大致等同或者可以大致是子像素600大小的整数倍数；本发明通过将金属线路所形成的网格线路分布与各种颜色(R，G，B)子像素600的分布联系起来，可以避免线路外露，不会影响到显示开口率。
本发明还可以选择将第一金属线路100，第二金属线路200，以及桥点300等的粗细按照裸眼分辨不出的标准进行设计。通过将金属线路制作为更为细密的丝线，达到裸眼分辨不出的程度，这样就不会看到金属线路，实现金属线消影的作用。触控触感更为精细、灵敏，线路更为细密，触控分辨率可更高。
本发明提供了金属网格触控显示结构及其制作方法，通过本发明，制作触控线路，可选择材料增多，并且可以根据不同需求设计不同材料和方案；本发明除了可以用在常规显示面板上之外，也可以用来制作柔性触控方案，适用于制作柔性显示面板的触控线路。参见图5，其为本发明金属网格触控显示结构一较佳实施例应用于柔性显示面板的示意图。通过第一金 属线路100，第二金属线路200，通孔310和桥点300的分布形成对应于互电容两方向电极形状的金属网格结构，将其设置于柔性显示面板上，可以随着柔性显示面板的弯折而变化；此时图1中金属网格结构的膜层结构可以保持不变，但材质上会有所差异，第一保护层800和第二保护层900在选材上倾向于柔性材质。
综上所述，本发明金属网格触控显示结构及其制作方法，使用常规金属材料即可满足需求，取材广泛；触控触感更为精细、灵敏，线路更为细密，触控分辨率可更高；金属网格线路隐藏于子像素之间，不占用像素空间，不会影响到显示开口率；桥点、金属线路双层电路依靠通孔接触，接触点多，可有效避免断路不良，良率高；既可用于LCD外嵌式工艺，也可用于OLED工艺；既可以用于硬屏产品，也可用于柔性产品。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (10)

  1. 一种金属网格触控显示结构，包括：显示组件和设置于该显示组件上的金属网格结构；该金属网格结构包括设置于该显示组件上的桥点，设置于该桥点上的第一保护层，设置于该第一保护层上由同一层金属制作的用于形成互电容第一方向电极的第一金属线路和用于形成互电容第二方向电极的第二金属线路，以及设置于该第一金属线路和第二金属线路上的第二保护层；该第一金属线路与第二金属线路相互绝缘，该第一金属线路形成对应于互电容第一方向电极形状的网格图案，该第二金属线路形成对应于互电容第二方向电极形状的网格图案；所述第一保护层设有对应于所述桥点的通孔，所述第二金属线路通过所述通孔和桥点连通；所述网格图案的网格线路制作于该显示组件的子像素间的遮光层上。
  2. 如权利要求1所述的金属网格触控显示结构，其中，所述网格图案的网格大小与该显示组件的子像素大小大致等同或者大致是子像素大小的整数倍数。
  3. 如权利要求1所述的金属网格触控显示结构，其中，该金属网格结构还包括边缘走线和绑定焊垫，该边缘走线设置于该金属网格结构的边缘，该绑定焊垫设置于该金属网格结构的一端，该第一金属线路和第二金属线路分别由相应的边缘走线连接至相应的绑定焊垫。
  4. 如权利要求3所述的金属网格触控显示结构，其中，所述绑定焊垫与提供驱动信号的外部驱动芯片连接。
  5. 如权利要求1所述的金属网格触控显示结构，其中，该第一金属线路和第二金属线路的粗细按照裸眼分辨不出的标准进行设计。
  6. 如权利要求1所述的金属网格触控显示结构，其中，该第一保护层为氮化硅或有机薄膜。
  7. 如权利要求1所述的金属网格触控显示结构，其中，该第二保护层为氮化硅或有机薄膜。
  8. 如权利要求1所述的金属网格触控显示结构，其中，该显示组件为TFT-LCD显示面板或OLED显示面板。
  9. 如权利要求1所述的金属网格触控显示结构，其中，该显示组件为柔性显示面板，该第一保护层和第二保护层为柔性材质。
  10. 一种如权利要求1所述的金属网格触控显示结构的制作方法，包括：
    步骤10、在显示组件上制作第一层金属，形成桥点；
    步骤20、在该桥点上制作第一保护层；
    步骤30、制作该第一保护层上的通孔，所述通孔的位置与所述桥点对应；
    步骤40、在该第一保护层上制作第二层金属，形成第一金属线路和第二金属线路，所述第二金属线路通过所述通孔和桥点连通；
    步骤50、在该第一金属线路和第二金属线路上制作第二保护层。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110780776A (zh) * 2019-11-29 2020-02-11 蓝思科技（长沙）有限公司 柔性触控盖板及其制备方法、柔性触控显示屏
CN114220831A (zh) * 2021-12-10 2022-03-22 武汉华星光电半导体显示技术有限公司 可拉伸显示面板及其制造方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108255362A (zh) * 2018-04-12 2018-07-06 武汉华星光电半导体显示技术有限公司 金属网格触控显示结构及其制作方法
CN108958552B (zh) 2018-08-01 2020-05-05 武汉华星光电半导体显示技术有限公司 触控显示面板
CN108920018A (zh) 2018-08-22 2018-11-30 武汉华星光电半导体显示技术有限公司 一种触摸屏面板
CN109634468A (zh) * 2019-02-22 2019-04-16 业成科技（成都）有限公司 触控面板之触控模组结构
CN111142703B (zh) * 2019-12-09 2023-03-28 武汉华星光电半导体显示技术有限公司 触控面板及其制作方法
CN110968220B (zh) * 2019-12-19 2023-10-20 武汉天马微电子有限公司 一种显示面板及显示装置
CN111290661B (zh) * 2020-01-22 2021-04-02 武汉华星光电半导体显示技术有限公司 柔性触控显示装置
CN111384136B (zh) * 2020-02-27 2022-08-16 武汉天马微电子有限公司 显示面板及显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309070A (zh) * 2012-09-24 2013-09-18 上海天马微电子有限公司 触控式液晶显示装置
CN103777810A (zh) * 2012-10-23 2014-05-07 乐金显示有限公司 金属网格型触摸屏面板
CN105528106A (zh) * 2014-10-17 2016-04-27 瑞鼎科技股份有限公司 内嵌式触控显示***、内嵌式触控面板及其布局
CN108255362A (zh) * 2018-04-12 2018-07-06 武汉华星光电半导体显示技术有限公司 金属网格触控显示结构及其制作方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278955B (zh) * 2012-12-14 2015-11-11 上海天马微电子有限公司 一种彩膜基板及触控式液晶显示装置
CN203276213U (zh) * 2013-04-02 2013-11-06 南昌欧菲光显示技术有限公司 滤光片组件和触摸显示屏
KR101625176B1 (ko) * 2013-04-22 2016-05-27 엘지디스플레이 주식회사 터치스크린 일체형 표시장치용 컬러 필터 기판 및 이의 제조 방법
TWI483157B (zh) * 2013-04-23 2015-05-01 Au Optronics Corp 觸控面板及觸控顯示面板
CN103235666A (zh) * 2013-05-09 2013-08-07 南昌欧菲光显示技术有限公司 滤光片组件和触摸显示组件
CN107219953B (zh) * 2017-05-27 2019-12-20 京东方科技集团股份有限公司 一种柔性触控显示面板及其制备方法、显示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309070A (zh) * 2012-09-24 2013-09-18 上海天马微电子有限公司 触控式液晶显示装置
CN103777810A (zh) * 2012-10-23 2014-05-07 乐金显示有限公司 金属网格型触摸屏面板
CN105528106A (zh) * 2014-10-17 2016-04-27 瑞鼎科技股份有限公司 内嵌式触控显示***、内嵌式触控面板及其布局
CN108255362A (zh) * 2018-04-12 2018-07-06 武汉华星光电半导体显示技术有限公司 金属网格触控显示结构及其制作方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110780776A (zh) * 2019-11-29 2020-02-11 蓝思科技（长沙）有限公司 柔性触控盖板及其制备方法、柔性触控显示屏
CN114220831A (zh) * 2021-12-10 2022-03-22 武汉华星光电半导体显示技术有限公司 可拉伸显示面板及其制造方法
CN114220831B (zh) * 2021-12-10 2023-12-01 武汉华星光电半导体显示技术有限公司 可拉伸显示面板及其制造方法

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