WO2016086583A1 - 一种金属网格、触摸屏、显示装置和触摸屏的制作方法 - Google Patents

一种金属网格、触摸屏、显示装置和触摸屏的制作方法 Download PDF

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Publication number
WO2016086583A1
WO2016086583A1 PCT/CN2015/077945 CN2015077945W WO2016086583A1 WO 2016086583 A1 WO2016086583 A1 WO 2016086583A1 CN 2015077945 W CN2015077945 W CN 2015077945W WO 2016086583 A1 WO2016086583 A1 WO 2016086583A1
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WIPO (PCT)
Prior art keywords
pattern
touch
metal
touch screen
row
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PCT/CN2015/077945
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English (en)
French (fr)
Inventor
谢晓冬
胡明
涂志中
张明
王庆浦
李可丰
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 US14/785,125 priority Critical patent/US10156924B2/en
Priority to EP15790434.3A priority patent/EP3229112A4/en
Publication of WO2016086583A1 publication Critical patent/WO2016086583A1/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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • 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 mesh, a touch screen, a display device, and a method of manufacturing the touch screen.
  • the touch screen includes a touch electrode for sensing a touch position.
  • a metal grid with a small resistance is usually used as a touch electrode to reduce the delay of the resistor and capacitor and improve the signal transmission speed of the touch electrode.
  • touch electrodes used in OGS touch screens are usually regular metal grids.
  • the metal mesh includes a plurality of mutually parallel and equidistantly disposed plurality of metal lines extending in a first direction, and a plurality of mutually parallel and equidistantly disposed plurality of metals extending in a second direction crossing the first direction line.
  • the metal mesh has the above structure and is opaque, and the black matrix in the display module is also a mesh structure and is opaque, after the touch screen is combined with the display module, between the metal mesh and the black matrix
  • the line overlap phenomenon is serious, so that after the light emitted by the display module passes through the metal mesh, corrugated interference fringes (ie, moire fringes) are generated, which reduces the display quality of the display device.
  • the moiré fringing phenomenon is generally improved by reducing the line width of the metal lines, for example, reducing the line width of the metal lines to 3.5 ⁇ m.
  • the inventors have found that when the line width of the metal wire is low, problems such as disconnection of the metal wire and poor antistatic property are likely to occur.
  • the technical problem to be solved by the present invention is to provide a metal grid, a touch screen, a display device and a method for manufacturing a touch screen, which can also improve the moire phenomenon when the line width of the metal wire is large.
  • an embodiment of the present invention provides a metal grid for a touch screen, which adopts the following technical solutions:
  • the metal mesh includes a plurality of repeating units, the metal wires in the repeating unit encloses at least two different basic patterns, and the repeating units are formed by splicing one or more of the at least two different basic patterns.
  • the basic patterns within the repeating unit are arranged irregularly.
  • the metal wire is a straight line or a curve.
  • the metal wires are straight and the angle between adjacent metal wires is 30, 45, 60, 90, 135 or 180.
  • the basic pattern enclosed by the metal lines in the repeating unit comprises at least two of a square pattern, a non-rectangular parallelogram pattern, an isosceles right triangle pattern, and a non-isoscelial right triangle pattern.
  • the basic pattern enclosed by the metal lines in the repeating unit comprises: a square pattern, a first non-rectangular parallelogram pattern inclined to the first direction, and a second non-rectangular shape inclined to the second direction a parallelogram pattern, the first direction being opposite the second direction.
  • the basic pattern enclosed by the metal lines in the repeating unit comprises a square pattern, an isosceles right triangle pattern, and a non-isosceles right triangle pattern;
  • the basic pattern enclosed by the metal lines in the repeating unit is arranged to have ten rows, the first row, the fourth row, the seventh row and the tenth row each comprise a square pattern; the second row, the first row
  • the three rows, the eighth row, and the ninth row each include an isosceles right triangle pattern; the fifth row and the sixth row each include a non-isoscelial right triangle pattern.
  • the two basic patterns adjoining within the repeating unit are different kinds of basic patterns.
  • the metal lines have a line width of 5-10 microns.
  • Embodiments of the present invention provide a metal mesh including a plurality of repeating units, a metal line in each repeating unit enclosing at least two different basic patterns, and the repeating unit is composed of one or more of the at least The two different basic patterns are spliced, so that when the metal mesh having the above structure is used as the touch electrode in the touch screen, after the touch screen is combined with the display module, the metal mesh and the display module can be improved.
  • the lines between the black matrices coincide. This, in turn, can improve the moire phenomenon even when the line width of the metal wire is large, thereby avoiding problems such as wire breakage and poor antistatic capability.
  • the embodiment of the present invention further provides a touch screen, which adopts the following technical solutions:
  • a touch screen includes a substrate and a touch electrode arranged in an array on the substrate, each of the touch electrodes including the metal mesh described above.
  • two adjacent touch electrodes located in the same row Connected to a metal grid of the same layer as the touch electrodes, and connected between two adjacent touch electrodes in the same column by bridges; or two adjacent touch electrodes in the same column Connected between the two adjacent touch electrodes in the same row by a metal grid connected to the same layer of the touch electrodes; or two adjacent touch electrodes in the same row
  • the bridges are connected by a bridge, and the two adjacent touch electrodes in the same column are connected by a bridge.
  • the touch screen further includes a blanking layer under the layer of the touch electrode in the middle area of the touch screen, and a light shielding layer under the layer of the touch electrode in the peripheral area of the touch screen.
  • a protective layer on the layer where the touch electrode is located, the protective layer is provided with a via hole, and two ends of the bridge are respectively connected to one touch electrode through the via hole.
  • one of the vias is provided on each of the protective layers above the adjacent two touch electrodes in the same row and/or the same column, and the two ends of the bridge pass through the above two One via is connected to one touch electrode; or one via is disposed on the protective layer above the adjacent two touch electrodes in the same row and/or the same column, the vias are parallel
  • the direction of the substrate extends from one touch electrode to another adjacent one of the touch electrodes in the same row or the same column as the one touch electrode.
  • the material of the bridge is indium tin oxide.
  • the touch screen further includes a binding line at the peripheral area, the binding line being in the same layer as the touch electrode and having the same material.
  • the touch screen further comprises a bond line protection line on the bond line, the bond line protection line being in the same layer as the bridge and having the same material.
  • the embodiment of the invention provides a touch screen, which comprises a substrate and an array of touch electrodes arranged on the substrate.
  • the touch grid comprises a metal grid having a plurality of repeating units, and the metal lines in each repeating unit Forming at least two different basic patterns, and the repeating unit is formed by splicing one or more of the at least two different basic patterns, so that after the touch screen is matched with the display module, the metal grid and the display module can be improved.
  • the lines between the black matrices coincide. This, in turn, can also improve the moire phenomenon when the line width of the metal wire is large, thereby avoiding problems such as wire breakage and poor antistatic capability.
  • an embodiment of the present invention further provides a display device, the touch device described above.
  • an embodiment of the present invention further provides a method for manufacturing a touch screen, including: Forming a pattern including a light shielding layer on the substrate; forming a pattern including a blanking layer on the substrate on which the pattern including the light shielding layer is formed; on the substrate on which the pattern including the blanking layer is formed, Forming a metal grid as a touch electrode, a metal grid for connecting adjacent two touch electrodes, and a binding line, the metal grid as a touch electrode comprising a plurality of repeating units,
  • the metal lines in the repeating unit enclose at least two different basic patterns, and the repeating unit is formed by splicing one or more of the at least two different basic patterns; forming a metal grid including as a touch electrode and A pattern including a protective layer is formed on the substrate of the pattern of the bonding wires; and a pattern including a bridge and a bonding wire protection line is formed on the substrate on which the pattern including the protective layer is formed.
  • FIG. 1 is a schematic view of a first metal grid in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a second metal grid in an embodiment of the present invention.
  • FIG. 3 is a schematic view of a third metal grid in an embodiment of the present invention.
  • FIG. 4 is a schematic view of a fourth metal grid in an embodiment of the present invention.
  • FIG. 5 is a schematic plan view showing an intermediate portion of a touch screen according to an embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view showing a first intermediate region of a touch screen according to an embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view showing a second intermediate portion of a touch screen in an embodiment of the present invention.
  • FIG. 8 is a schematic cross-sectional view showing a peripheral region of a touch screen according to an embodiment of the present invention.
  • FIG. 9 is a flow chart of manufacturing a touch screen according to an embodiment of the present invention.
  • Embodiments of the present invention provide a metal mesh that can improve the moire phenomenon even if the line width of the metal wires in the metal mesh is large.
  • the metal mesh includes a plurality of repeating units 1, the metal wires 2 in the repeating unit 1 enclose at least two different basic patterns, and the repeating unit 1 consists of one or more of the at least two Different basic patterns are spliced, so that when the metal mesh having the above structure is used as the touch electrode in the touch screen, after the touch screen is combined with the display module, the black matrix in the metal mesh and the display module can be improved.
  • the lines overlap. This, in turn, can also improve the moire phenomenon when the line width of the metal wire 2 is large, thereby avoiding problems such as the disconnection of the metal wire 2 and poor antistatic capability.
  • the basic patterns within the repeating unit 1 are arranged irregularly. It should be noted that the above-mentioned “irregular arrangement” refers to no repetitive units and non-periodic arrangement or random arrangement.
  • the wire 2 can be a straight line or a curve. When the metal wire 2 is a straight line, the angle between the adjacent metal wires 2 may be 30°, 45°, 60°, 90°, 135° or 180°.
  • the pattern surrounded by the metal wires 2 in the repeating unit 1 includes at least two of a square pattern, a non-rectangular parallelogram pattern, an isosceles right triangle pattern, and a non-isoscelial right triangle pattern.
  • non-rectangular parallelogram refers to a parallelogram in which four corners are not right angles;
  • non-isosceles right-angled triangle refers to a right-angled triangle in which two right-angled sides are not equal.
  • the basic pattern spliced in the repeating unit 1 includes: a square pattern, a first non-rectangular parallelogram pattern inclined to the first direction x, and a second tilted to the second direction y A non-rectangular parallelogram pattern in which the first direction x and the second direction y are opposite.
  • the two basic patterns adjacent in the repeating unit are of different kinds. As shown in FIG. 3 and FIG.
  • the basic pattern spliced in the repeating unit 1 includes a square pattern, an isosceles right triangle pattern, and a non-isosceles right triangle pattern; the metal wires 2 in the repeating unit 1 are enclosed.
  • the basic patterns are distributed in ten rows, the first row, the fourth row, the seventh row, and the tenth row each include a square pattern; the second row, the third row, the eighth row, and the ninth row each include an isosceles right triangle pattern
  • the fifth and sixth lines each include a non-isoscelial right triangle pattern.
  • the repeating unit has a spliced rectangular outline.
  • the basic pattern spliced in the repeating unit 1 of the metal mesh includes: a first square pattern inclined in a first direction with one side adjoining one side of the first square pattern a first non-rectangular parallelogram pattern having a side and a second square pattern adjacent to the other side of the first non-rectangular parallelogram pattern opposite to the first square pattern, and with a side and a second square pattern A second non-rectangular parallelogram pattern inclined to the second direction y adjacent to the other side of the first non-rectangular parallelogram pattern, the first direction x and the second direction y being opposite.
  • the basic pattern spliced in the repeating unit 1 includes: a first square pattern, the first non-inclination in the first direction x adjacent to one side of the first square pattern a rectangular parallelogram pattern having a side and a second non-rectangular parallelogram pattern inclined in the second direction y adjacent to the other side of the first non-rectangular parallelogram pattern opposite to the first square pattern, with one edge a second square pattern adjacent to the other side of the second non-rectangular parallelogram pattern opposite to the first non-rectangular parallelogram pattern, with one side opposite to the second non-rectangular parallelogram pattern in the second square pattern a third non-rectangular parallelogram pattern inclined to the second direction y on one side, and a first direction x inclined from the other side opposite to the second square pattern from the third non-rectangular parallelogram pattern with one side a fourth non-rectangular parallelogram pattern; the first direction x and the second direction y are opposite.
  • the overall outline of the repeating unit 1 is a rectangle.
  • the first row in the basic pattern spliced in the repeating unit 1 includes two first square patterns; the second row includes a first isosceles right triangle pattern with the apex angles disposed toward the first row and a first isosceles right triangle pattern
  • the two waists are two second isosceles right triangle patterns of the bottom side;
  • the third line and the fourth line include patterns respectively symmetrical with the patterns included in the second line and the first line;
  • the fifth line includes two common oblique sides
  • Non-isosceles right triangle pattern; sixth, seventh, eighth, ninth, and tenth lines include patterns with fifth, fourth, third, second, and first The lines included are axisymmetric in pattern.
  • the repeating unit 1 includes a portion having a rectangular outline a portion and a second portion; wherein the first row of the pattern surrounded by the metal lines 2 in the first portion includes two first square patterns; and the second row includes a first isosceles right triangle pattern with the bottom edges disposed toward the first row And two second isosceles right triangle patterns with the two waists of the first isosceles right triangle pattern as the bottom side; the third line includes the same pattern as the second line; the fourth line includes the pattern and the first The rows include the same pattern; the fifth row includes two non-isosceles right triangle patterns that share the hypotenuse; the sixth row, the seventh row, the eighth row, the ninth row, and the tenth row include patterns and fifth rows, respectively.
  • the fourth row, the third row, the second row, and the first row include patterns that are axisymmetric along the third direction x'; the pattern surrounded by the metal lines 2 in the second portion and the metal lines 2 in the first portion The pattern is axisymmetric along the fourth direction y'; the third direction x' and the fourth direction y' are perpendicular.
  • the metal wires 2 in the metal mesh in the embodiment of the present invention have a line width of 5 to 10 ⁇ m.
  • the line width of the metal wires 2 in the metal mesh in the embodiment of the present invention is preferably 5 ⁇ m.
  • Embodiments of the present invention provide a metal mesh including a plurality of repeating units, a metal line in each repeating unit enclosing at least two different basic patterns, and the repeating unit is composed of one or more of the at least The two different basic patterns are spliced, so that when the metal mesh having the above structure is used as the touch electrode in the touch screen, the touch screen and the display module can improve the blackness in the metal mesh and the display module.
  • the lines between the matrices coincide. This, in turn, can also improve the moire phenomenon when the line width of the metal wire is large, thereby avoiding problems such as wire breakage and poor antistatic capability.
  • the touch screen includes a substrate 3 and an array of touch electrodes 4 disposed on the substrate 3 .
  • Each of the touch electrodes 4 includes the first embodiment.
  • Metal grid As can be seen from the description in the first embodiment, the metal mesh has a plurality of repeating units 1, each of the metal wires 2 in the repeating unit 1 encloses at least two different basic patterns, and the repeating unit 1 is composed of one or more of the at least two Two different basic patterns are spliced, so that the touch screen and the display module can improve the line overlap between the metal grid and the black matrix in the display module, and thus the line width of the metal line 2 can be improved.
  • the moire phenomenon can also be improved, thereby avoiding problems such as the disconnection of the metal wire 2 and the poor antistatic capability.
  • the adjacent two touch electrodes 4 located in the same row are connected by a metal grid located in the same layer as the touch electrode 4, and adjacent to the two adjacent columns in the same column.
  • the touch electrodes 4 are connected by a bridge 5; or two adjacent touch electrodes 4 in the same column are connected by a metal grid located in the same layer as the touch electrodes 4, and adjacent to each other in the same row.
  • the touch electrodes 4 are connected by a bridge 5; or the adjacent two touch electrodes 4 in the same row are connected by a bridge 5, and the adjacent two touch electrodes 4 in the same row pass through the bridge. 5 connections. For example, as shown in FIG.
  • the touch electrodes 4 in the same column form an Rx channel, and two adjacent touch electrodes in the Rx channel are connected by a bridge 5, and the touch electrodes 4 in the same row constitute a Tx channel.
  • Two adjacent touch electrodes 4 in the Tx channel are connected by a metal grid located in the same layer as the touch electrodes 4.
  • the touch screen further comprises a blanking layer, a light shielding layer, a protective layer and a via hole on the protective layer.
  • the blanking layer 6 is located under the layer of the touch electrode 4 in the middle area of the touch screen; as shown in FIG. 8 , the light shielding layer 7 is located on the touch electrode 4 in the peripheral area of the touch screen.
  • the protective layer 8 is located on the layer where the touch electrode 4 is located, and as shown in FIG. 6 and FIG. 7, the protective layer 8 is provided with a via hole 9, Both ends of the bridge 5 are respectively connected to one touch electrode 4 through the via holes 9.
  • the function of the blanking layer 6 is to reduce the visual visibility of the metal grid as the touch electrode 4.
  • the material of the blanking layer 6 may be silicon dioxide or tantalum pentoxide or the like;
  • the function of the light shielding layer 7 is to prevent The peripheral portion of the touch screen leaks light, and the material of the light shielding layer 7 may be a black resin material or the like;
  • the protective layer 8 functions to protect the metal wires 2 in the metal mesh as the touch electrode 4 from being oxidized, and to be used for connecting adjacent
  • the metal mesh or the bridge 5 of the touch electrode 4 is insulated from each other, and the material of the protective layer 8 may be a transparent resin material or the like.
  • the arrangement of the via holes 9 can be performed in the following two ways: In the first mode, as shown in FIG. 6, only the adjacent two touch electrodes 4 located in the same row and/or the same column are used. A via 9 is disposed on each of the upper protective layers 8, and two ends of the bridge 5 are respectively connected to one touch electrode through the two via holes 9; in the second mode, as shown in FIG. 7, in the same row And a via 9 disposed on the protective layer 8 above the adjacent two touch electrodes 4 in the same column, the via 9 extending from a touch electrode 4 to the touch parallel to the substrate 3 The electrodes 4 are located in the same row or adjacent touch electrodes 4 in the same column.
  • the material of the bridge 5 in the embodiment of the present invention is preferably indium tin oxide, so that the bridge 5 has good conductivity and is not observed by the user.
  • the touch screen further includes a binding line 10 located in the peripheral area, and the binding line 10 is in the same layer and the same material as the touch electrode 4 , so as not to increase the complexity of the touch screen manufacturing process.
  • one end of one binding wire 10 is connected to one row or one column of touch electrodes 4, and the other end is connected to the flexible circuit board, so that the sensing signal generated on the touch electrode 4 can be transmitted to the integrated circuit through the flexible circuit board.
  • the preferred touch screen in the embodiment of the present invention further includes The bond line protection line 11 on the bond line 10.
  • the bonding wire protection wire 11 is located on the same layer as the bridge 5 and has the same material, so that the material of the bonding wire protection wire 11 is indium tin oxide with good oxidation resistance and corrosion resistance, without increasing the complexity of the touch screen manufacturing process. degree.
  • the embodiment of the invention provides a touch screen, which comprises a substrate and an array of touch electrodes arranged on the substrate.
  • the touch grid comprises a metal grid having a plurality of repeating units, and the metal lines in each repeating unit Forming at least two different basic patterns, and the repeating unit is formed by splicing one or more of the at least two different basic patterns, so that the touch screen and the display module can be improved, and the metal grid and the display module can be improved.
  • the lines between the black matrices coincide. This, in turn, can also improve the moire phenomenon when the line width of the metal wire is large, thereby avoiding problems such as wire breakage and poor antistatic capability.
  • an embodiment of the present invention further provides a display device including the touch screen described above.
  • the display device may be any product or component having a display function such as a liquid crystal panel, an electronic paper, an organic light emitting display panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the present invention further provides a method for manufacturing the touch screen described above. As shown in FIG. 9, the manufacturing method includes:
  • Step S901 forming a pattern including a light shielding layer on the substrate.
  • a black resin material is formed on the substrate, and then, after exposure and development processes, a pattern including a light shielding layer is formed.
  • Step S902 forming a pattern including a blanking layer on the substrate on which the pattern including the light shielding layer is formed.
  • a material for forming a blanking layer is formed on a substrate on which a pattern including a light shielding layer is formed, and then a layer of photoresist is coated on the layer material, after exposure, development, and etching processes.
  • a pattern including a blanking layer is formed.
  • Step S903 forming a metal grid as a touch electrode, a metal grid for connecting adjacent touch electrodes, and a binding line on the substrate on which the pattern including the blanking layer is formed.
  • a metal layer is formed on the substrate on which the pattern including the blanking layer is formed, and then a layer of photoresist is coated on the metal layer, and after exposure, development, and etching processes, the formation includes The metal grid of the control electrode, the metal grid for connecting the adjacent two touch electrodes, and the pattern of the bonding wires.
  • Step S904 forming a pattern including a protective layer on a substrate on which a pattern including a metal grid as a touch electrode and a bonding wire is formed.
  • a transparent resin material is formed on a substrate including a metal mesh as a touch electrode, a metal mesh for connecting adjacent two touch electrodes, and a bonding wire, and then A layer of photoresist is coated on the transparent resin material, and after exposure and development processes, a pattern including a protective layer is formed.
  • the protective layer may cover the entire substrate over a large area, and has a via hole only at a connection position between the bridge and the touch electrode, or may only have a protective layer above the metal mesh as a conductive path.
  • Step S905 forming a pattern including a bridge and a bond line protection line on the substrate on which the pattern including the protective layer is formed.
  • a layer of indium tin oxide is formed, and then a layer of photoresist is coated on the indium tin oxide, and after forming, developing, and etching processes, forming a bridge And the graphics of the binding line protection line.
  • the method for fabricating the touch panel provided by the embodiment of the present invention is not limited thereto, and those skilled in the art may perform the setting according to the specific structure of the touch screen, which is not described in detail in the embodiments of the present invention.

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

Abstract

本发明实施例公开了一种金属网格、触摸屏、显示装置和触摸屏的制作方法，并且涉及显示技术领域。本发明能够在金属线的线宽较大时，也可改善莫尔条纹现象。所述金属网格包括多个重复单元，所述重复单元内的金属线围成至少两种不同基本图案，且所述重复单元由一个或多个所述至少两种不同基本图案拼接而成。

Description

一种金属网格、触摸屏、显示装置和触摸屏的制作方法 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、触摸屏、显示装置和触摸屏的制作方法。
背景技术
为了提高显示装置的用户体验效果，显示装置已经广泛应用触摸屏。具体地，触摸屏包括用以感测触碰位置的触控电极。通常使用电阻较小的金属网格作为触控电极，以减小电阻电容延迟，提高触控电极的信号传递速度。
目前，应用在OGS触摸屏中的触控电极通常为规则的金属网格。该金属网格包括沿第一方向延伸的多条相互平行的等间隔设置的多条金属线，以及沿与第一方向交叉的第二方向延伸的多条相互平行的等间隔设置的多条金属线。由于金属网格具有如上结构，且不透光，并且显示模组中的黑矩阵也为网格结构且不透光，因此在触摸屏与显示模组贴合后，金属网格与黑矩阵之间的线条重合现象严重，使得在显示模组发出的光线经过金属网格后，会产生波纹状的干涉条纹(即莫尔条纹)，降低了显示装置的显示品质。
现有技术中，通常采用降低金属线的线宽的方式改善莫尔条纹现象，例如将金属线的线宽降低至3.5μm。但是发明人发现，当金属线的线宽很低时，容易导致金属线断路和抗静电能力差等问题出现。
发明内容
本发明所要解决的技术问题在于提供一种金属网格、触摸屏、显示装置和触摸屏的制作方法，其在金属线的线宽较大时，也可改善莫尔条纹现象。
为解决上述技术问题，本发明实施例提供了一种用于触摸屏的金属网格，采用如下技术方案：
所述金属网格包括多个重复单元，所述重复单元内的金属线围成至少两种不同基本图案，且所述重复单元由一个或多个所述至少两种不同基本图案拼接而成。
根据优选实施例，所述重复单元内的所述基本图案不规则排布。
根据优选实施例，所述金属线为直线或者曲线。
根据优选实施例，所述金属线为直线，并且相邻的所述金属线之间的夹角为30°、45°、60°、90°、135°或者180°。
根据优选实施例，所述重复单元内的金属线围成的基本图案包括：正方形图案、非矩形的平行四边形图案、等腰直角三角形图案和非等腰的直角三角形图案中的至少两种。
根据优选实施例，所述重复单元内的金属线围成的基本图案包括：正方形图案，向第一方向倾斜的第一非矩形的平行四边形图案，以及向第二方向倾斜的第二非矩形的平行四边形图案，所述第一方向与所述第二方向相反。
根据优选实施例，所述重复单元内的金属线围成的基本图案包括正方形图案、等腰直角三角形图案和非等腰的直角三角形图案；
根据优选实施例，所述重复单元内的金属线围成的基本图案被布置成具有十行，第一行、第四行、第七行和第十行均包括正方形图案；第二行、第三行、第八行和第九行均包括等腰直角三角形图案；第五行和第六行均包括非等腰的直角三角形图案。
根据优选实施例，所述重复单元内邻接的两个基本图案是不同种类的基本图案。
根据优选实施例，所述金属线的线宽为5-10微米。
本发明实施例提供了一种金属网格，该金属网格包括多个重复单元，每个重复单元内的金属线围成至少两种不同基本图案，且重复单元由一个或多个所述至少两种不同基本图案拼接而成，从而使得将具有上述结构的金属网格用作触摸屏中的触控电极时，在触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象。这进而可以在即使金属线的线宽较大时，也可改善莫尔条纹现象，从而避免金属线断路和抗静电能力差等问题出现。
进一步地，本发明实施例还提供了一种触摸屏，采用如下技术方案：
一种触摸屏，包括基板和位于所述基板上的阵列排布的触控电极，每个所述触控电极包括以上所述的金属网格。
根据优选实施例，位于同一行的相邻两个所述触控电极之间通过 与所述触控电极位于同一层的金属网格连接，位于同一列的相邻两个所述触控电极之间通过搭桥连接；或者，位于同一列的相邻两个所述触控电极之间通过与所述触控电极位于同一层的金属网格连接，同一行的相邻两个所述触控电极之间通过搭桥连接；或者，位于同一行的相邻两个所述触控电极之间通过搭桥连接，且位于同一列的相邻两个所述触控电极之间通过搭桥连接。
根据优选实施例，所述触摸屏还包括位于所述触摸屏的中间区域的所述触控电极所在层下的消隐层，位于所述触摸屏的周边区域的所述触控电极所在层下的遮光层，以及位于所述触控电极所在层上的保护层，所述保护层上设置有过孔，所述搭桥的两端通过所述过孔分别连接一个所述触控电极。
根据优选实施例，仅在位于同一行和/或同一列的相邻的两个触控电极上方的所述保护层上各设置一个所述过孔，并且所述搭桥的两端分别通过上述两个过孔连接到一个触控电极；或者，在位于同一行和/或同一列的相邻的两个触控电极上方的所述保护层上设置一个所述过孔，所述过孔沿平行于基板的方向从一个触控电极一直延伸至与所述一个触控电极位于同一行或者同一列的相邻的另一个触控电极。
根据优选实施例，所述搭桥的材料为氧化铟锡。
根据优选实施例，所述触摸屏还包括位于所述周边区域的绑定线，所述绑定线与所述触控电极位于同一层且具有相同材料。
根据优选实施例，所述触摸屏还包括位于所述绑定线上的绑定线保护线，所述绑定线保护线与所述搭桥位于同一层且具有相同材料。
本发明实施例提供了一种触摸屏，该触摸屏包括基板和位于基板上的阵列排布的触控电极，触控电极包括的金属网格具有多个重复单元，每个重复单元内的金属线围成至少两种不同基本图案，且重复单元由一个或多个所述至少两种不同基本图案拼接而成，从而使得在触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象。这进而可以在金属线的线宽较大时，也可改善莫尔条纹现象，从而避免金属线断路和抗静电能力差等问题出现。
此外，本发明实施例还提供了一种显示装置，所述显示装置上述的触摸屏。
此外，本发明实施例还提供了一种触摸屏的制造方法，包括：在 基板上形成包括遮光层的图形；在形成了包括所述遮光层的图形的所述基板上，形成包括消隐层的图形；在形成了包括所述消隐层的图形的所述基板上，形成包括作为触控电极的金属网格、用以连接相邻两个触控电极的金属网格和绑定线的图形，所述作为触控电极的金属网格包括多个重复单元，所述重复单元内的金属线围成至少两种不同基本图案，并且所述重复单元由一个或多个所述至少两种不同基本图案拼接而成；在形成了包括作为触控电极的金属网格和所述绑定线的图形的所述基板上，形成包括保护层的图形；在形成了包括所述保护层的图形的所述基板上，形成包括搭桥和绑定线保护线的图形。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中的第一种金属网格示意图；
图2为本发明实施例中的第二种金属网格示意图；
图3为本发明实施例中的第三种金属网格示意图；
图4为本发明实施例中的第四种金属网格示意图；
图5为本发明实施例中的触摸屏的中间区域的平面示意图；
图6为本发明实施例中的触摸屏的第一种中间区域的截面示意图；
图7为本发明实施例中的触摸屏的第二种中间区域的截面示意图；
图8为本发明实施例中的触摸屏的周边区域的截面示意图；
图9为本发明实施例中的触摸屏的制作流程图。
附图标记说明：
1-重复单元；     2-金属线；          3-基板；
4-触控电极；     5-搭桥；            6-消隐层；
7-遮光层；       8-保护层；          9-过孔；
10-绑定线；      11-绑定线保护线。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
本发明实施例提供了一种金属网格，即使该金属网格中的金属线的线宽较大，也可改善莫尔条纹现象。
如图1-图4所示，金属网格包括多个重复单元1，重复单元1内的金属线2围成至少两种不同基本图案，且重复单元1由一个或多个所述至少两种不同基本图案拼接而成，从而使得将具有上述结构的金属网格用作触摸屏中的触控电极时，在触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象。这进而可以在金属线2的线宽较大时，也可改善莫尔条纹现象，从而避免金属线2断路和抗静电能力差等问题出现。
示例性地，重复单元1内的基本图案不规则排布。需要说明的是，上述“不规则排布”指的是无更小的重复单元和非周期性排布或随机性排布。示例性地，金属线2可以为直线或者曲线。当金属线2为直线时，相邻的金属线2之间的夹角可以为30°、45°、60°、90°、135°或者180°。此时，重复单元1内的金属线2围成的图案包括正方形图案、非矩形的平行四边形图案、等腰直角三角形图案和非等腰的直角三角形图案中的至少两种。需要说明的是，上述“非矩形的平行四边形”指的是四个角不是直角的平行四边形；上述“非等腰的直角三角形”指的是两个直角边不相等的直角三角形。
为了便于本领域技术人员理解，本发明实施例提供了如图1-4所示的四种具体的金属网格。其中，如图1和图2所示，重复单元1内拼接的基本图案包括：正方形图案，向第一方向x倾斜的第一非矩形的平行四边形图案，以及向第二方向y倾斜的第二非矩形的平行四边形图案，其中，第一方向x和第二方向y相反。由图2和图2可看出，在所述重复单元内邻接的两个基本图案是不同种类的。如图3和图4所示，重复单元1内拼接的基本图案包括正方形图案、等腰直角三角形图案和非等腰的直角三角形图案；重复单元1内的金属线2围成的 基本图案分布于十行中，第一行、第四行、第七行和第十行均包括正方形图案；第二行、第三行、第八行和第九行均包括等腰直角三角形图案；第五行和第六行均包括非等腰的直角三角形图案。由图3和图4可看出，所述重复单元具有拼接而成的矩形轮廓。
下面对图1-图4所示的四种金属网格的具体结构进行详细的描述：
在第一种结构中，如图1所示，金属网格的重复单元1内拼接的基本图案包括：一个第一正方形图案，以一个边与第一正方形图案的一边邻接的向第一方向倾斜的第一非矩形的平行四边形图案，以一个边与第一非矩形的平行四边形图案中与第一正方形图案相对的另一边邻接的第二正方形图案，以及以一个边与第二正方形图案中与第一非矩形的平行四边形图案相对的另一边邻接的向第二方向y倾斜的第二非矩形的平行四边形图案，第一方向x和第二方向y相反。
在第二种结构中，如图2所示，重复单元1内拼接的基本图案包括：一个第一正方形图案，以一个边与第一正方形图案一边邻接的向第一方向x倾斜的第一非矩形的平行四边形图案，以一个边与第一非矩形的平行四边形图案中与第一正方形图案相对的另一边邻接的向第二方向y倾斜的第二非矩形的平行四边形图案，以一个边与第二非矩形的平行四边形图案中与第一非矩形的平行四边形图案相对的另一边邻接的第二正方形图案，以一个边与第二正方形图案中与第二非矩形的平行四边形图案相对的另一边邻接的向第二方向y倾斜的第三非矩形的平行四边形图案，以及以一个边自第三非矩形的平行四边形图案中与第二正方形图案相对的另一边邻接的向第一方向x倾斜的第四非矩形的平行四边形图案；第一方向x和第二方向y相反。
在第三种结构中，如图3所示，重复单元1的整体轮廓为矩形。重复单元1内拼接的基本图案中的第一行包括两个第一正方形图案；第二行包括顶角朝向第一行设置的第一等腰直角三角形图案和以第一等腰直角三角形图案的两个腰为底边的两个第二等腰直角三角形图案；第三行、第四行包括的图案分别与第二行、第一行包括的图案轴对称；第五行包括两个共用斜边的非等腰的直角三角形图案；第六行、第七行、第八行、第九行和第十行包括的图案分别与第五行、第四行、第三行、第二行和第一行包括的图案轴对称。
在第四种结构中，如图4所示，重复单元1包括轮廓为矩形的第 一部分和第二部分；其中，第一部分内的金属线2围成的图案的第一行包括两个第一正方形图案；第二行包括底边朝向第一行设置的第一等腰直角三角形图案和以第一等腰直角三角形图案的两个腰为底边两个第二等腰直角三角形图案；第三行包括的图案与第二行包括的图案相同；第四行包括的图案与第一行包括的图案相同；第五行包括两个共用斜边的非等腰的直角三角形图案；第六行、第七行、第八行、第九行和第十行包括的图案分别与第五行、第四行、第三行、第二行和第一行包括的图案沿第三方向x′轴对称；第二部分内的金属线2围成的图案和第一部分内的金属线2围成的图案沿第四方向y′轴对称；第三方向x′和第四方向y′垂直。
需要说明的是，本发明实施例中的金属网格的具体结构并不局限于以上几种，本发明实施例不再一一赘述。
另外，本发明实施例中的金属网格中的金属线2的线宽为5-10微米。为了能够最大程度地改善莫尔条纹现象，本发明实施例中的金属网格中的金属线2的线宽优选为5微米。
本发明实施例提供了一种金属网格，该金属网格包括多个重复单元，每个重复单元内的金属线围成至少两种不同基本图案，且重复单元由一个或多个所述至少两种不同基本图案拼接而成，从而使得将具有上述结构的金属网格用作触摸屏中的触控电极时，触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象。这进而可以在金属线的线宽较大时，也可改善莫尔条纹现象，从而避免金属线断路和抗静电能力差等问题出现。
实施例二
本发明实施例提供了一种触摸屏，如图5所示，该触摸屏包括基板3以及位于基板3上的阵列排布的触控电极4，每个触控电极4包括实施例一中所述的金属网格。由实施例一中的描述可知，金属网格具有多个重复单元1，每个重复单元1内的金属线2围成至少两种不同基本图案，且重复单元1由一个或多个所述至少两种不同基本图案拼接而成，从而使得触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象，进而可以在金属线2的线宽较大时，也可改善莫尔条纹现象，从而避免金属线2断路和抗静电能力差等问题出现。
进一步地，为了实现信号的传输，本发明实施例中位于同一行的相邻两个触控电极4之间通过与触控电极4位于同一层的金属网格连接，位于同一列的相邻两个触控电极4之间通过搭桥5连接；或者，位于同一列的相邻两个触控电极4之间通过与触控电极4位于同一层的金属网格连接，位于同一行的相邻两个触控电极4之间通过搭桥5连接；或者，位于同一行的相邻两个触控电极4之间通过搭桥5连接，且位于同一列的相邻两个触控电极4之间通过搭桥5连接。示例性地，如图5所示，位于同一列的触控电极4构成Rx通道，Rx通道中的相邻两个触控电极通过搭桥5连接，位于同一行的触控电极4构成Tx通道，Tx通道中的相邻两个触控电极4通过与触控电极4位于同一层的金属网格连接。
优选地，触摸屏还包括消隐层、遮光层、保护层以及位于保护层上的过孔。具体地，如图6和图7所示，消隐层6位于触摸屏的中间区域的触控电极4所在的层下；如图8所示，遮光层7位于触摸屏的周边区域的触控电极4所在的层下；如图6、图7和图8所示，保护层8位于触控电极4所在的层上，且如图6和图7所示，保护层8上设置有过孔9，搭桥5的两端通过过孔9分别连接一个触控电极4。
其中，消隐层6的作用在于降低作为触控电极4的金属网格的视觉可看性，消隐层6的材料可以为二氧化硅或者五氧化二铌等；遮光层7的作用在于防止触摸屏的周边区域漏光，遮光层7的材料可以为黑色树脂材料等；保护层8的作用在于保护作为触控电极4的金属网格中的金属线2不被氧化，以及使得用于连接相邻的触控电极4的金属网格或者搭桥5之间相互绝缘，保护层8的材料可以为透明的树脂材料等。
需要说明的是，过孔9的设置可以采用以下两种方式：在第一种方式中，如图6所示，仅在位于同一行和/或同一列的相邻的两个触控电极4上方的保护层8上各设置一个过孔9，并且搭桥5两端分别通过上述两个过孔9分别连接一个触控电极；在第二种方式中，如图7所示，在位于同一行和/或同一列的相邻的两个触控电极4上方的保护层8上设置一个过孔9，该过孔9沿平行于基板3方向从一个触控电极4一直延伸至与该触控电极4位于同一行或者同一列的相邻的另一个触控电极4。
进一步地，本发明实施例中的搭桥5的材料优选为氧化铟锡，从而使得搭桥5在具有良好的导电性的同时，不被用户观察到。
进一步地，如图8所示，触摸屏还包括位于周边区域的绑定线10，绑定线10与触控电极4位于同一层且材料相同，从而不会增加触摸屏制作过程的复杂程度。具体地，一条绑定线10的一端连接一行或者一列触控电极4，另一端连接柔性电路板，从而能够将触控电极4上产生的感应信号通过柔性电路板传输至集成电路中。由于绑定线10与触控电极4位于同一层且具有相同材料，并且绑定线10的材料为金属，因此，为了防止绑定线10被氧化或者腐蚀，本发明实施例中优选触摸屏还包括位于绑定线10上的绑定线保护线11。绑定线保护线11与搭桥5位于同一层且具有相同材料，从而使得绑定线保护线11的材料为抗氧化和抗腐蚀效果好的氧化铟锡，同时又不会增加触摸屏制作过程的复杂程度。
本发明实施例提供了一种触摸屏，该触摸屏包括基板和位于基板上的阵列排布的触控电极，触控电极包括的金属网格具有多个重复单元，每个重复单元内的金属线围成至少两种不同基本图案，且重复单元由一个或多个所述至少两种不同基本图案拼接而成，从而使得触摸屏与显示模组贴合后，能够改善金属网格与显示模组中的黑矩阵之间的线条重合现象。这进而可以在金属线的线宽较大时，也可改善莫尔条纹现象，从而避免金属线断路和抗静电能力差等问题出现。
此外，本发明实施例还提供了一种显示装置，该显示装置包括以上所述的触摸屏。具体地，该显示装置可以为液晶面板、电子纸、有机发光显示面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
为了便于本领域技术人员制作本发明实施例中所述的触摸屏，本发明实施例还提供了一种以上所述的触摸屏的制作方法，如图9所示，该制作方法包括：
步骤S901、在基板上形成包括遮光层的图形。
具体地，在基板上形成一层黑色树脂材料，然后经过曝光和显影工艺后，形成包括遮光层的图形。
步骤S902、在形成了包括遮光层的图形的基板上，形成包括消隐层的图形。
具体地，在形成了包括遮光层的图形的基板上形成一层用于形成消隐层的材料，然后在该层材料上涂布一层光刻胶，经过曝光、显影和刻蚀工艺后，形成包括消隐层的图形。
步骤S903、在形成了包括消隐层的图形的基板上，形成包括作为触控电极的金属网格、用以连接相邻两个触控电极的金属网格和绑定线的图形。
具体地，在形成了包括消隐层的图形的基板上，形成一层金属层，然后在该金属层上涂布一层光刻胶，经过曝光、显影和刻蚀工艺后，形成包括作为触控电极的金属网格、用以连接相邻两个触控电极的金属网格和绑定线的图形。
步骤S904、在形成了包括作为触控电极的金属网格和绑定线的图形的基板上，形成包括保护层的图形。
具体地，在形成了包括作为触控电极的金属网格、用以连接相邻两个触控电极的金属网格和绑定线的图形的基板上，形成一层透明树脂材料，然后，在透明树脂材料上涂布一层光刻胶，经过曝光和显影工艺后，形成包括保护层的图形。需要说明的是，保护层可以大面积覆盖于整个基板上，仅在搭桥与触控电极连接位置处具有过孔，也可以仅使作为导电通道的金属网格上方具有保护层。
步骤S905、在形成了包括保护层的图形的基板上，形成包括搭桥和绑定线保护线的图形。
具体地，在形成了包括保护层的图形的基板上，形成一层氧化铟锡，然后，在氧化铟锡上涂布一层光刻胶，经过曝光、显影和刻蚀工艺后，形成包括搭桥和绑定线保护线的图形。
需要说明的是，本发明实施例提供的触摸屏的制作方法并不局限于此，本领域技术人员可以根据上述的触摸屏的具体结构进行设定，本发明实施例不再一一赘述。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此。任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种用于触摸屏的金属网格，其特征在于，所述金属网格包括多个重复单元，所述重复单元内的金属线围成至少两种不同基本图案，且所述重复单元由一个或多个所述至少两种不同基本图案拼接而成。
  2. 根据权利要求1所述的金属网格，其特征在于，所述重复单元内的所述基本图案不规则排布。
  3. 根据权利要求1所述的金属网格，其特征在于，所述金属线为直线或者曲线。
  4. 根据权利要求1所述的金属网格，其特征在于，所述金属线为直线，并且相邻的所述金属线之间的夹角为30°、45°、60°、90°、135°或者180°。
  5. 根据权利要求1所述的金属网格，其特征在于，所述重复单元内的金属线围成的所述基本图案包括正方形图案、非矩形的平行四边形图案、等腰直角三角形图案和非等腰的直角三角形图案中的至少两种。
  6. 根据权利要求1所述的金属网格，其特征在于，
    所述重复单元内的金属线围成的所述基本图案包括正方形图案，向第一方向倾斜的第一非矩形的平行四边形图案，以及向第二方向倾斜的第二非矩形的平行四边形图案，所述第一方向与所述第二方向相反。
  7. 根据权利要求1所述的金属网格，其特征在于，
    所述重复单元内的金属线围成的所述基本图案包括正方形图案、等腰直角三角形图案和非等腰的直角三角形图案；
    拼接而成的所述重复单元被布置成具有十行，其中第一行、第四行、第七行和第十行均包括正方形图案；第二行、第三行、第八行和第九行均包括等腰直角三角形图案；第五行和第六行均包括非等腰的直角三角形图案。
  8. 根据权利要求1所述的金属网格，其特征在于，所述重复单元内邻接的两个基本图案是不同种类的基本图案。
  9. 根据权利要求1-8中任一项所述的金属网格，其特征在于，所述金属线的线宽为5-10微米。
  10. 一种触摸屏，包括基板，其特征在于，还包括位于所述基板上的阵列排布的触控电极，每个所述触控电极包括如权利要求1-9中任一项所述的金属网格。
  11. 根据权利要求10所述的触摸屏，其特征在于，位于同一行的相邻两个所述触控电极之间通过与所述触控电极位于同一层的金属网格连接，并且位于同一列的相邻两个所述触控电极之间通过搭桥连接；或者，位于同一列的相邻两个所述触控电极之间通过与所述触控电极位于同一层的金属网格连接，并且位于同一行的相邻两个所述触控电极之间通过搭桥连接；或者，位于同一行的相邻两个所述触控电极之间通过搭桥连接，且位于同一列的相邻两个所述触控电极之间通过搭桥连接。
  12. 根据权利要求11所述的触摸屏，其特征在于，还包括位于所述触摸屏的中间区域的所述触控电极所在的层下的消隐层，位于所述触摸屏的周边区域的所述触控电极所在的层下的遮光层，以及位于所述触控电极所在的层上的保护层；所述保护层设置有过孔，所述搭桥的两端通过所述过孔分别连接一个所述触控电极。
  13. 根据权利要求12所述的触摸屏，其特征在于，仅在位于同一行和/或同一列的相邻的两个触控电极上方的所述保护层上各设置一个所述过孔，并且所述搭桥的两端分别通过上述两个过孔连接到一个触控电极；或者，在位于同一行和/或同一列的相邻的两个触控电极上方的所述保护层上设置一个所述过孔，所述过孔沿平行于基板的方向从一个触控电极一直延伸至与所述一个触控电极位于同一行或者同一列的相邻的另一个触控电极。
  14. 根据权利要求11或12或13所述的触摸屏，其特征在于，所述搭桥的材料为氧化铟锡。
  15. 根据权利要求14所述的触摸屏，其特征在于，还包括位于所述周边区域的绑定线，所述绑定线与所述触控电极位于同一层且具有相同材料。
  16. 根据权利要求15所述的触摸屏，其特征在于，还包括位于所述绑定线上的绑定线保护线，所述绑定线保护线与所述搭桥位于同一层且具有相同材料。
  17. 一种显示装置，其特征在于，包括如权利要求10-16任一项所 述的触摸屏。
  18. 一种触摸屏的制造方法，包括：
    在基板上形成包括遮光层的图形；
    在形成了包括所述遮光层的图形的所述基板上，形成包括消隐层的图形；
    在形成了包括所述消隐层的图形的所述基板上，形成包括作为触控电极的金属网格、用以连接相邻两个触控电极的金属网格和绑定线的图形，所述作为触控电极的金属网格包括多个重复单元，所述重复单元内的金属线围成至少两种不同基本图案，并且所述重复单元由一个或多个所述至少两种不同基本图案拼接而成；
    在形成了包括作为触控电极的金属网格和所述绑定线的图形的所述基板上，形成包括保护层的图形；
    在形成了包括所述保护层的图形的所述基板上，形成包括搭桥和绑定线保护线的图形。
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