WO2014161250A1 - 触摸屏 - Google Patents

触摸屏 Download PDF

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Publication number
WO2014161250A1
WO2014161250A1 PCT/CN2013/079296 CN2013079296W WO2014161250A1 WO 2014161250 A1 WO2014161250 A1 WO 2014161250A1 CN 2013079296 W CN2013079296 W CN 2013079296W WO 2014161250 A1 WO2014161250 A1 WO 2014161250A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive
conductive strip
electrode lead
touch screen
lead
Prior art date
Application number
PCT/CN2013/079296
Other languages
English (en)
French (fr)
Inventor
唐根初
董绳财
刘伟
唐彬
Original Assignee
深圳欧菲光科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳欧菲光科技股份有限公司 filed Critical 深圳欧菲光科技股份有限公司
Priority to KR1020137025099A priority Critical patent/KR101527848B1/ko
Priority to US13/968,381 priority patent/US20140293150A1/en
Publication of WO2014161250A1 publication Critical patent/WO2014161250A1/zh

Links

Classifications

    • 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
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • 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
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a touch screen. Background technique
  • the touch screen is an inductive device that can receive the input signal of the touch light.
  • the touch screen gives the information a new look and is an attractive new information interaction device.
  • the development of touch screen technology has attracted the attention of the domestic and international information media circles, and has become a rising technology industry in the optoelectronic industry.
  • the mainstream ITO touch screen adopts the G+G structure, that is, two glass substrate superimposing modes, each of which forms an ITO conductive pattern on the glass substrate, and each layer of ITO is connected to the two pieces of glass through the conductive lead and the flexible circuit board.
  • the ITO conductive patterns overlap each other spatially to form a capacitor-like structure.
  • the touch screen of this structure requires two glass substrates to be stacked, which increases the thickness of the touch screen. Summary of the invention
  • a touch screen including:
  • a substrate comprising opposing first and second surfaces
  • a coating layer disposed on the first surface of the substrate
  • first conductive strip, a second conductive strip embedded in the coating layer, the first conductive strip and the second conductive strip are electrically conductively embedded in the coating layer
  • the first conductive strip extends in a first direction
  • the second conductive strip extends in a second direction and is away from the substrate, the first conductive strip is opposite to the first conductive strip
  • the strip and the second conductive strip are spaced apart from each other along a thickness direction of the coating layer, a projection of the first conductive strip on a plane of the second conductive strip and the second conductive strip With intersecting;
  • the first electrode lead and the second electrode lead are disposed on a side of the coating adhesive layer away from the substrate, and one ends of the first electrode lead and the second electrode lead respectively are opposite to the first conductive strip and
  • the two conductive strips are electrically connected, the first electrode lead includes a through portion and a lead portion electrically connected to the through portion, the through portion is embedded in the coating adhesive layer, and the through portion is coated from the coating A side of the glue layer
  • the conductive mesh is comprised of a plurality of conductive lines that are electrically coupled to at least two of the conductive traces forming the first conductive strip.
  • the conductive mesh is comprised of a plurality of grid cells, the grid cells being square, diamond, regular hexagon, rectangular or random mesh shapes.
  • the conductive mesh is composed of a plurality of conductive lines
  • the second electrode lead is a solid conductive strip
  • the second electrode lead and the conductive mesh forming the first conductive strip At least two conductive lines of the grid are electrically connected.
  • the second electrode lead includes a lead portion and a connecting portion formed at one end of the lead portion, and the connecting portion and at least two of the conductive mesh forming the first conductive strip The wires are electrically connected.
  • the lead portion of the first electrode lead and the second electrode lead are formed of a conductive mesh.
  • the mesh unit forming the conductive portion of the lead portion of the first electrode lead and the second electrode lead is larger than the mesh forming the first conductive strip and the second conductive strip The unit is small.
  • an electrode patch cord is further included, the second electrode lead being electrically connected to the at least two conductive lines of the conductive mesh forming the second conductive strip through the electrode patch cord.
  • the second electrode lead includes a lead portion and a connection portion formed at one end of the lead portion, and a connection portion of the second electrode lead is electrically connected to the electrode adapter.
  • the through portion is columnar, and one end of the first conductive lead is electrically connected to the through portion.
  • the through portion is columnar, and one end of the first conductive lead is formed with a socket portion, and the socket portion is sleeved at one end of the through portion and electrically connected to the through portion .
  • the coating adhesive layer includes a first adhesive layer and a second adhesive layer which are sequentially stacked, and the first adhesive layer is formed with a first mesh groove away from a surface of the substrate, The first conductive strip is received in the first mesh groove, the thickness of the first conductive strip is not greater than the depth of the first mesh groove, and the second adhesive layer covers the first The second conductive strip is formed on the surface of the second adhesive layer, and the second conductive strip is received in the second mesh groove. The through portion penetrates the second adhesive layer.
  • the first conductive strip and the second conductive strip are made of metal, graphene, carbon nanotubes, indium tin oxide or a conductive polymer.
  • the first conductive strips are plural, and the plurality of first conductive strips are sequentially arranged along the second direction to form a first conductive layer.
  • the second conductive strips are plural, and the plurality of second conductive strips are sequentially arranged along the first direction to form a second conductive layer.
  • the touch panel, the first conductive strip and the second conductive strip are prepared by a conductive grid, which can save a large amount of materials, thereby reducing the cost; the touch screen is matched with the coating layer by the glass substrate, and the thickness is greatly reduced compared with the conventional touch screen.
  • One end of the first electrode lead and the second electrode lead away from the first conductive strip and the second conductive strip are bonded to the flexible circuit board, and the first electrode lead and the second electrode lead are located on the same side of the coating layer.
  • FIG. 1 is a schematic structural diagram of a touch screen according to an embodiment
  • FIG. 2 is an exploded perspective view of the touch screen shown in FIG. 1;
  • Figure 3 is a cross-sectional view of the touch screen of Figure 1 taken along the ⁇ - ⁇ line;
  • Figure 4 is a partial enlarged view of the portion IV in Figure 2;
  • FIG. 5 is a partial enlarged view of a second conductive layer and a second electrode lead in another embodiment
  • FIGS. 6 to 8 are schematic diagrams showing shapes of first electrode leads of the touch screen of different embodiments
  • Fig. 9 is a view showing the structure of a second electrode lead and an electrode transfer line of the touch panel in another embodiment. detailed description
  • the touch screen 100 of an embodiment includes a substrate 10, a coating layer 30, a first conductive layer 50, a second conductive layer 60, a first electrode lead 70, and a second electrode lead 80.
  • the material of the substrate 10 is a glass or an organic film.
  • the substrate 10 is a polyethylene terephthalate (PET) film.
  • PET polyethylene terephthalate
  • the substrate 10 may also be a film of other materials, such as polybutylene terephthalate (PBT), polymethyl methacrylate (PMMA), polycarbonate plastic ( PC).
  • PBT polybutylene terephthalate
  • PMMA polymethyl methacrylate
  • PC polycarbonate plastic
  • the substrate 10 includes a first surface 12 and a second surface 14 opposite the first surface 12.
  • the coating adhesive layer 30 is attached to the first surface 12 of the substrate 10.
  • the coating adhesive layer 30 is formed by curing a gel applied to the substrate 10. Therefore, the thickness of the coating adhesive layer 30 is smaller than the thickness of the substrate 10.
  • the coating adhesive layer 30 is formed of a transparent insulating material, and the material is different from that of the substrate 10.
  • the gel forming the coating adhesive layer 30 is a solventless ultraviolet curing acrylic resin.
  • the gel forming the coating layer 30 may also be a photo-curing adhesive, a thermosetting adhesive, and a self-drying adhesive.
  • the photo-curable glue is a mixture of prepolymer, monomer and photoinitiator and auxiliary agent according to molar ratio: 30-50%, 40-60%, 1 ⁇ 6% and 0.2 ⁇ 1%, light-solid glue, Thermosetting adhesive and self-drying adhesive.
  • the prepolymer is selected from at least one of epoxy acrylate, urethane acrylate, polyether acrylate, polyester acrylate, and acrylic resin; the monomer is monofunctional (IBOA, IBOMA, HEMA, etc.), difunctional (TPGDA, HDDA, DEGDA, NPGDA, etc.), at least one of trifunctional and polyfunctional (TMPTA, PETA, etc.); photoinitiators are benzophenone, diphenylacetone, and the like. Further, an auxiliary agent having a molar ratio of 0.2 to 1% may be added to the above mixture.
  • the auxiliary agent may be hydroquinone, p-methoxyphenol, p-benzoquinone, 2,6-di-tert-butyltoluene or the like.
  • the coating adhesive layer 30 includes a first adhesive layer 32 and a second adhesive layer 34 which are sequentially laminated. It should be noted that the materials of the first adhesive layer 32 and the second adhesive layer 34 may be the same or different.
  • the first adhesive layer 32 is attached to the first surface 20 of the substrate 10.
  • the first adhesive layer 32 is provided with a first mesh groove 321 away from the surface of the substrate 10.
  • the first mesh groove 321 may be formed by imprinting on the surface of the first adhesive layer 32 away from the substrate 10.
  • the shape of the first mesh groove 321 can be embossed into a predetermined shape as needed.
  • the first conductive layer 50 is received in the first mesh groove 321 .
  • the shape of the first conductive layer 50 matches the shape of the first mesh groove 321 . Since the first mesh recess 321 is imprinted into a predetermined shape, the conductive material is filled into the first mesh recess 321 and then hardened to form the first conductive layer 50.
  • the first conductive layer 50 can be prepared by blade coating or the like without being formed by etching, thereby saving raw materials and reducing cost.
  • the thickness of the first conductive layer 50 is smaller than the depth of the first mesh recess 321 , so that when the first conductive layer 50 is received in the first mesh recess 321 , the first adhesive layer 32 may form the first conductive layer 50 . Protection prevents the first conductive layer 50 from being destroyed in subsequent processes.
  • the thickness of the first conductive layer 50 may also be equal to the depth of the first mesh groove 321 .
  • the first conductive layer 50 is a conductive mesh formed by the intersection of conductive lines, and the conductive grid includes a plurality of grid cells. Specifically, in this embodiment, the line width of the conductive line is between
  • the first grid groove 321 may be filled with nano silver ink using a doctor blade technique, and then sintered at 150 ° C to sinter the silver element in the nano silver ink into a conductive wire.
  • the silver ink has a solid content of 35%, and the solvent volatilizes during sintering. Since the shape of the first mesh groove 321 is previously imprinted into a predetermined shape of the desired electrode. Therefore, after the conductive mesh is formed, the forming operation is not required, thereby saving material and improving efficiency.
  • the first conductive layer 50 material may also be other metals, graphene, carbon nanotubes, indium tin oxide or a conductive polymer, and other materials may be filled in the first grid groove 321 at this time.
  • the second adhesive layer 34 is laminated on the surface of the first adhesive layer 32.
  • the second adhesive layer 34 covers the first adhesive layer 32 and the first conductive strip 50.
  • the second adhesive layer 34 is provided with a second mesh recess 341 away from the surface of the substrate 10.
  • the second grid groove 341 may be formed by imprinting on the surface of the second adhesive layer 34 away from the substrate 10. Further, the shape of the second mesh groove 341 can be embossed into a predetermined shape as needed.
  • the second conductive layer 60 is received in the second mesh recess 341.
  • the shape of the second conductive layer 60 matches the shape of the second mesh groove 341. Since the second mesh recess 341 is embossed into a predetermined shape, the conductive material is filled into the second mesh recess 341 and hardened to form the second conductive layer 60.
  • the second conductive layer 60 does not have to be formed by etching, so that raw materials can be saved and cost can be reduced.
  • the second conductive layer 60 and the first conductive layer 50 are spaced apart from each other in the thickness direction of the coat layer 30.
  • the thickness of the second conductive layer 60 is smaller than the depth of the second mesh recess 341, so that when the second conductive layer 60 is received in the second mesh recess 341, the second adhesive layer 34 may form the second conductive layer 60. Protection prevents the second conductive layer 60 from being destroyed in subsequent processes.
  • the thickness of the second conductive layer 60 may also be equal to the depth of the second mesh groove 341.
  • the second conductive layer 60 is a conductive mesh formed by intersecting conductive lines, and the conductive mesh includes a plurality of mesh cells. Specifically, in this embodiment, the line width of the conductive line is between
  • the second grid recess 341 may be filled with nano-silver ink using a knife coating technique, and then sintered at 150 ° C to sinter the silver element in the nano-silver ink into a conductive wire.
  • the silver ink has a solid content of 35%, and the solvent volatilizes during sintering. Since the shape of the second mesh groove 341 is previously imprinted into a predetermined shape of the desired electrode. Therefore, after the conductive mesh is formed, the forming operation is not required, thereby saving material and improving efficiency.
  • the second grid recess 341 material may also be other metals, graphene, carbon nanotubes, indium tin oxide or conductive polymer, and the second grid groove 341 may be filled with other materials.
  • the first conductive layer 50 is comprised of a plurality of first conductive strips 52 extending in a first direction X.
  • a plurality of first conductive strips 52 are arranged along the second direction Y.
  • the first direction X and the second direction Y are substantially perpendicular to each other, and the first direction X and the second direction Y are both parallel to the first surface 12.
  • the second conductive layer 60 is comprised of a plurality of second conductive strips 62 extending in a second direction Y. A plurality of second conductive strips 52 are arranged along the first direction X. The first conductive strip 52 is on the second conductive strip
  • the projection on the plane in which 62 is located intersects the second conductive strip 62.
  • the grid cells of the conductive grid of the first conductive layer 50 and the second conductive layer 60 are regular hexagons, and the plurality of grid cells form a honeycomb structure.
  • the mesh may also be a rectangle, a parallelogram or a curved quadrilateral, and the curved quadrilateral has four curved sides, and the opposite two sides have the same shape and curved course.
  • the grid cells in Figure 5 are diamond shaped.
  • the first conductive layer 50 and the second conductive layer 60 should overlap to the greatest extent to reduce the area of the double-layer metal grid occupying the visible area and improve the light transmittance.
  • the grid cells of the second conductive layer 60 overlap with the grid cells of the first conductive layer 50.
  • the overlap of the grid cells means that the widths of the conductive lines of the grid cells are equal, and each mesh cell has the same shape.
  • the area is equal, and each of the conductive lines of the first conductive layer 50 is opposite to each of the conductive lines of the second conductive layer 60.
  • the projection of the first conductive layer 50 on the plane in which the second conductive layer 60 is located coincides with the second conductive layer 60.
  • the conductive meshes of the first conductive layer 50 and the second conductive layer 60 overlap such that the conductive lines of the grid cells of the second conductive layer 60 and the conductive lines of the grid cells of the first conductive layer 50 do not block each other to reduce the double layer.
  • the conductive grid takes up the area of the visible area and increases the light transmittance.
  • the first electrode lead 70 includes a through portion 72 and a lead portion 74.
  • the penetrating portion 72 is embedded in the second adhesive layer 34.
  • the through portion 72 extends from the surface of the second adhesive layer 34 away from the substrate 10 to the first conductive layer 50 such that one end of the through portion 72 is electrically connected to the first conductive layer 50.
  • the second adhesive layer 34 is formed with a through hole for receiving the through portion 72.
  • the through hole is formed in the form of a rubber plug, that is, by exposure and development of a photoresist.
  • the penetration portion 72 is prepared by filling a conductive material in the through hole.
  • the through portion 72 is electrically connected to at least two conductive lines in the conductive grid.
  • One end of the lead portion 74 is electrically connected to one end of the through portion 72 away from the first conductive layer 50.
  • the first electrode lead 70 is used to electrically connect the first conductive layer 50 with the controller of the electronic device.
  • the other end of the lead portion 74 is electrically connected to the flexible circuit board, and then passes through the flexible circuit.
  • the board is electrically coupled to a controller of the electronic device such that the controller senses operation on the touch screen 100.
  • the second adhesive layer 34 is formed with a recess for receiving the lead portion 74 of the first electrode lead 70 away from the surface of the substrate 10.
  • the lead portion of the first electrode lead 70 is received in the recess.
  • the lead portion 74 of the first electrode lead 70 is a solid conductive strip.
  • the thickness of the lead portion 74 of the first electrode lead 70 is smaller than the depth of the groove, so that when the lead portion 74 is received in the recess, the second adhesive layer 34 can protect the lead portion 74 from the subsequent step of the lead portion 74. It was destroyed.
  • the thickness of the lead portion 74 may also be equal to the depth of the groove.
  • the recess for accommodating the lead portion 74 may be omitted, and the lead portion 74 of the first electrode lead 70 is disposed at a surface of the second adhesive layer 74 away from the substrate 10.
  • the lead portion 74 of the first electrode lead 70 is formed by a conductive mesh in which conductive lines are crossed in a grid.
  • the mesh period of the conductive mesh of the lead portion 74 is smaller than the mesh period of the conductive mesh of the first conductive layer 50, which is the size of the mesh unit.
  • the penetrating portion 72 is substantially cylindrical, and one end of the lead portion 74 is electrically connected to the penetrating portion 72.
  • the first electrode lead 70 further includes a sleeve portion 76 integrally formed with the lead portion 74.
  • the lead portion 74 of the first electrode lead 70 and the socket portion 60 are formed of a conductive mesh in which conductive wires are formed by mesh crossing.
  • the mesh period of the conductive mesh of the lead portion 74 and the socket portion 60 is smaller than the mesh period of the conductive mesh of the first conductive layer 50, and the mesh period is the size of the mesh unit.
  • the penetrating portion 72 is substantially cylindrical, and the ferrule portion 76 is sleeved at one end of the penetrating portion 72, so that the contact area between the ferrule portion 76 and the penetrating portion 72 can be increased, thereby improving the stability of the first electrode lead 70.
  • the first electrode lead 70 further includes a sleeve portion 76 integrally formed with the lead portion 74.
  • the lead portion 74 of the first electrode lead 70 and the socket portion 60 are formed by a conductive mesh in which wires are crossed by wires.
  • the mesh period of the conductive mesh of the lead portion 74 and the socket portion 60 is smaller than the mesh period of the conductive mesh of the first conductive layer 50, which is the size of the mesh unit.
  • the penetrating portion 72 is substantially quadrangular in shape, and the socket portion 76 is sleeved at one end of the penetrating portion 72, so that the contact area of the socket portion 76 and the penetrating portion 72 can be increased, thereby improving the stability of the first electrode lead 70.
  • the second electrode lead 80 includes a lead portion 82 and a connecting portion 84 formed at one end of the lead portion 82.
  • the second electrode lead 80 is used to electrically connect the second conductive layer 60 with the controller of the electronic device.
  • the other end of the lead portion 82 is electrically connected to the flexible circuit board, and then passes through the flexible circuit.
  • the board is electrically coupled to a controller of the electronic device such that the controller senses operation on the touch screen 100.
  • the second electrode lead 80 is a solid conductive strip
  • the connecting portion 84 is electrically connected to at least two conductive lines in the conductive grid of the second conductive strip 62 of the second conductive layer 60.
  • the second adhesive layer 34 is formed with a recess for accommodating the second electrode lead 80 away from the surface of the substrate 10, and the second electrode lead 80 is received in the recess.
  • the second electrode lead 80 is a solid conductive strip.
  • the thickness of the second electrode lead 80 is smaller than the depth of the groove, so that when the second electrode lead 80 is received in the groove, the second adhesive layer 34 can protect the second electrode lead 80, avoiding the second electrode lead 80 from following. The process was destroyed.
  • the thickness of the second electrode lead 80 may also be equal to the depth of the groove.
  • the recess for accommodating the second electrode lead 80 may be omitted. At this time, the second electrode lead 80 is arranged on the surface of the second adhesive layer 74 away from the substrate 10.
  • the second electrode lead 80 is formed by a conductive mesh in which conductive wires are crossed in a grid.
  • the mesh period of the conductive mesh of the second electrode lead 80 is smaller than the mesh period of the conductive mesh of the second conductive layer 60, which is the size of the mesh unit. Since the mesh period of the conductive mesh of the second electrode lead 80 is different than the mesh period of the conductive mesh of the second conductive layer 60, when the connection portion 84 of the second electrode lead 80 is electrically connected to the second conductive layer 60, Difficult to align. Therefore, further, the touch screen 100 further includes an electrode transfer line 90. The connecting portion 84 is electrically connected to the second conductive layer 60 through the electrode patch cord 90.
  • the electrode extension cable 90 is a continuous conductive line, so that the electrode extension cable 90 can be electrically connected to at least two conductive lines of the connection portion 84 of the second electrode lead 80 and the conductive grid of the second conductive layer 60 to make the second electrode
  • the lead 80 is better electrically connected to the second conductive layer 60.
  • the above touch screen 100 has at least the following advantages:
  • the first conductive layer 50 and the second conductive layer 60 are respectively received in the first mesh recess 321 and the second mesh recess 341, so that the first conductive layer 50 and the second conductive layer 60 can be prepared. Prepared by scraping, etc., without etching, so that raw materials can be saved and costs can be reduced;
  • the grid cells of the first conductive layer 50 and the second conductive layer 60 can achieve a visually transparent effect by controlling the width and density of the conductive lines; when the conductive meshes of the first conductive layer 50 and the second conductive layer 60 are overlapped
  • the conductive lines of the grid cells of the second conductive layer 60 and the conductive lines of the grid cells of the first conductive layer 50 do not block each other, so as to reduce the area of the double-layer conductive grid occupying the visible area and improve the light transmittance;
  • the touch screen 100 is matched with the coating layer 30 by the substrate 10, and the thickness is greatly reduced compared with the conventional two-layer glass substrate;
  • first electrode lead 70 and the second electrode lead 80 away from the first conductive layer 50 and the second conductive layer 60 is bonded to the flexible circuit board, and the first electrode lead 70 and the second electrode lead 80 are located on the coating layer.
  • the same side of 30 can simplify the structure and the bonding process of the flexible circuit board, and reduce the cost of the touch screen 100.
  • one of the first adhesive layer 32 and the second adhesive layer 34 may be omitted, and the adhesive layer 30 is a single layer structure.
  • the first conductive layer 50 and the second conductive layer 60 are respectively embedded in the coating adhesive layer 30.
  • the second conductive layer 60 and the first conductive layer 50 are spaced apart from each other along the thickness direction of the coating adhesive layer 30, and the second conductive layer 60 is spaced apart from each other.
  • the first conductive layer 50 is away from the substrate 10 compared to the first conductive layer 50.

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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

提供了一种触摸屏。所述触摸屏包括：基板，所述基板包括相对的第一表面及第二表面；涂布胶层，设于所述基板的第一表面；嵌设于所述涂布胶层中的第一导电条带和第二导电条带，其中，第一导电条带及第二导电条带由嵌设于所述涂布胶层中的导电网络构成，第二导电条带相较于第一导电条带远离基板，且第一导电条带与第二导电条带沿涂布胶层的厚度方向相互间隔；及第一电极引线和第二电极引线，设于涂布胶层远离基板的一侧，其中，第一电极引线与第二电极引线的一段分别与第一导电条带和第二导电条带电连接，第一电极引线包括贯穿部及与贯穿部电连接的引线部，贯穿部嵌设于涂布胶层中，且贯穿部自涂布胶层远离基板的一侧延伸至第一导电条带的表面且与第一导电条带连接。所述触摸屏的厚度较小。

Description

触摸屏
技术领域
本发明涉及触控技术领域， 特别是涉及一种触摸屏。 背景技术
触摸屏是可接收触摸灯输入信号的感应式装置。触摸屏赋予了信息交 互崭新的面貌， 是极富吸引力的全新信息交互设备。 触摸屏技术的发展引 起了国内外信息传媒界的普遍关注， 已成为光电行业异军突起的朝阳高新 技术产业。
目前， 主流的 ITO触摸屏是采用 G+G结构， 即两片玻璃基板叠加模 式， 每一片玻璃基板上形成有 ITO导电图案， 每一层 ITO均通过导电引 线与柔性电路板连接两片玻璃上的 ITO导电图案相互空间交叠，形成类似 电容的结构。 但是， 这种结构的触摸屏的需要两片玻璃基板叠加， 增大了 触摸屏的厚度。 发明内容
基于此， 有必要提供一种厚度较小的触摸屏。
—种触摸屏， 包括：
基板， 包括相对的第一表面及第二表面；
涂布胶层， 设于该基板的第一表面；
嵌设于该涂布胶层中的第一导电条带、 第二导电条带， 所述第一导电 条带及所述第二导电条带由嵌设于该涂布胶层中的导电网格构成， 所述第 一导电条带沿第一方向延伸， 所述第二导电条带沿第二方向延伸且相较于 所述第一导电条带远离所述基板， 所述第一导电条带与所述第二导电条带 沿所述涂布胶层的厚度方向相互间隔， 所述第一导电条带在所述第二导电 条带所在的平面上的投影与所述第二导电条带相交； 第一电极引线及第二电极引线， 设于所述涂布胶层远离所述基板的一 侧， 所述第一电极引线与第二电极引线的一端分别与所述第一导电条带及 第二导电条带电连接， 所述第一电极引线包括贯穿部及与贯穿部电连接的 引线部， 所述贯穿部嵌设于所述涂布胶层中， 且所述贯穿部自所述涂布胶 层远离所述基板的一侧延伸至所述第一导电条带的表面且与第一导电条 带电连接。
在其中一个实施例中， 所述导电网格由多条导电线组成， 所述贯穿部 与形成所述第一导电条带的导电网格中的至少两条导电线电连接。
在其中一个实施例中， 所述导电网格由多个网格单元构成， 所述网格 单元为正方形、 菱形、 正六边形、 长方形或随机网格形状。
在其中一个实施例中， 所述导电网格由多条导电线组成， 所述第二电 极引线为实心导电条， 所述第二电极引线与形成所述第一导电条带的所述 导电网格的至少两条导电线电连接。
在其中一个实施例中， 所述第二电极引线包括引线部及形成于所述引 线部一端的连接部， 所述连接部与形成所述第一导电条带的所述导电网格 的至少两条导电线电连接。
在其中一个实施例中， 所述第一电极引线的引线部及所述第二电极引 线由导电网格形成。
在其中一个实施例中， 形成所述第一电极引线的引线部及所述第二电 极引线的导电网格的网格单元比形成第一导电条带及所述第二导电条带 的网格单元小。
在其中一个实施例中， 还包括电极转接线， 所述第二电极引线通过所 述电极转接线与形成所述第二导电条带的所述导电网格的至少两条导电 线电连接。
在其中一个实施例中， 所述第二电极引线包括引线部及形成于所述引 线部一端的连接部， 所述第二电极引线的连接部与所述电极转接线电连 接。 在其中一个实施例中， 所述贯穿部为柱状， 所述第一导电引线的一端 与所述贯穿部电连接。
在其中一个实施例中， 所述贯穿部为柱状， 所述第一导电引线的一端 形成有套接部， 所述套接部套设于所述贯穿部的一端且与所述贯穿部电连 接。
在其中一个实施例中， 所述涂布胶层包括依次层叠的第一胶层及第二 胶层， 所述第一胶层远离所述基板的表面形成有第一网格凹槽， 所述第一 导电条带收容于所述第一网格凹槽中， 所述第一导电条带的厚度不大于所 述第一网格凹槽的深度， 所述第二胶层覆盖所述第一胶层及所述第一导电 条带， 所述第二胶层远离所述基板的表面形成有第二网格凹槽， 所述第二 导电条带收容于所述第二网格凹槽， 所述贯穿部贯穿所述第二胶层。
在其中一个实施例中， 所述第一导电条带及所述第二导电条带的材料 为金属、 石墨烯、 碳纳米管、 氧化铟锡或导电高分子。
在其中一个实施例中， 所述第一导电条带为多个， 多个第一导电条带 沿所述第二方向依次排布组成第一导电层。
在其中一个实施例中， 所述第二导电条带为多个， 多个第二导电条带 沿所述第一方向依次排布组成第二导电层。
上述触摸屏， 第一导电条带及第二导电条带由导电网格制备， 可以节 省大量的材料， 从而降低成本； 触摸屏采用玻璃基板与涂布胶层配合， 厚 度相较于传统的触摸屏大大减小； 第一电极引线与第二电极引线远离第一 导电条带及第二导电条带的一端与柔性电路板贴合， 第一电极引线及第二 电极引线位于涂布胶层的同一侧， 从而可以简化柔性电路板的结构及贴合 的工序， 降低触摸屏的成本。 附图说明
图 1为一实施方式的触摸屏的结构示意图；
图 2为图 1所示的触摸屏的分解示意图；
图 3为图 1中的触摸屏沿 ΙΠ-ΙΠ线的剖视图； 图 4为图 2中 IV处的局部放大图；
图 5为另一实施方式中第二导电层及第二电极引线的局部放大图； 图 6〜图 8分别为不同实施方式的触摸屏的第一电极引线的形状示意 图；
图 9为另一实施方式中的触摸屏的第二电极引线及电极转接线的结构 示意图。 具体实施方式
为了便于理解本发明， 下面将参照相关附图对本发明进行更全面的描 述。 附图中给出了本发明的较佳实施例。 但是， 本发明可以以许多不同的 形式来实现， 并不限于本文所描述的实施例。 相反地， 提供这些实施例的 目的是使对本发明的公开内容的理解更加透彻全面。
需要说明的是， 当元件被称为 "固定于"另一个元件， 它可以直接在另 一个元件上或者也可以存在居中的元件。 当一个元件被认为是 "连接 "另一 个元件， 它可以是直接连接到另一个元件或者可能同时存在居中元件。
除非另有定义， 本文所使用的所有的技术和科学术语与属于本发明的 技术领域的技术人员通常理解的含义相同。 本文中在本发明的说明书中所 使用的术语只是为了描述具体的实施例的目的， 不是旨在于限制本发明。 本文所使用的术语"及 I或"包括一个或多个相关的所列项目的任意的和 所有的组合。
请同时参阅图 1及图 2， 一实施方式的触摸屏 100， 包括基板 10、 涂 布胶层 30、 第一导电层 50、 第二导电层 60、 第一电极引线 70、 第二电极 引线 80。
基板 10的材料为玻璃或有机薄膜。 具体在本实施方式中， 基板 10为 对苯二甲酸乙二酯 （PET ) 薄膜。 需要指出的是， 在其他的实施例中， 基 板 10还可为其他材质的薄膜， 如聚对苯二甲酸丁二酯（PBT ) 、 聚甲基丙 烯酸甲酯 （PMMA) 、 聚碳酸酯塑料 （PC ) 。 基板 10包括第一表面 12及与第一表面 12相对的第二表面 14。
涂布胶层 30附着于基板 10的第一表面 12。 涂布胶层 30由涂布于基 板 10的胶状物固化而成。 因此， 涂布胶层 30的厚度小于基板 10的厚度。 涂布胶层 30由透明绝缘材料形成，且材料与基板 10的材料不同。具体在， 在本实施例中， 形成涂布胶层 30的胶状物为无溶剂紫外固化亚克力树脂。 在其他实施例中， 形成涂布胶层 30的胶状物还可以为光固胶、 热固胶及 自干胶。 其中光固胶为预聚物、 单体及光引发剂及助剂按照摩尔配比： 30-50%, 40-60%, 1~6%及 0.2~1%组成的混合物、 光固胶、 热固胶及自 干胶。其中， 预聚物选为环氧丙烯酸酯、聚氨酯丙烯酸酯、 聚醚丙烯酸酯、 聚酯丙烯酸酯、丙烯酸树脂中的至少一种；单体为单官能（IBOA、IBOMA、 HEMA等） 、 二官能 （TPGDA、 HDDA、 DEGDA、 NPGDA等） 、 三官 能及多官能 （TMPTA、 PETA等） 中的至少一种； 光引发剂为二苯甲酮、 二苯乙酮等。 进一步的， 在上述混合物中还可添加摩尔配比为 0.2~1%的 助剂。 助剂可为对苯二酚、 对甲氧基苯酚、 对苯醌、 2， 6—二叔丁基甲苯 酚等。
具体在本实施方式中， 涂布胶层 30包括依次层叠的第一胶层 32及第 二胶层 34。需要说明的是， 第一胶层 32及第二胶层 34的材料可以相同也 可以不同。
请同时参阅图 2及图 3， 第一胶层 32附着于基板 10的第一表面 20。 第一胶层 32远离基板 10的表面开设有第一网格凹槽 321。 第一网格凹槽 321可以通过压印的方式形成于第一胶层 32远离基板 10的表面。 而且第 一网格凹槽 321的形状可以根据需要， 压印成预设形状。
第一导电层 50收容于第一网格凹槽 321中。 具体在本实施方式中， 第一导电层 50的形状与第一网格凹槽 321的形状相匹配。 由于第一网格 凹槽 321压印为预设形状， 将导电材料填充至第一网格凹槽 321中， 再进 行硬化， 即可形成第一导电层 50。 第一导电层 50可以通过刮涂等方式制 备， 不必通过蚀刻成型， 从而可以节约原料， 降低成本。 第一导电层 50的厚度小于第一网格凹槽 321的深度， 从而当第一导 电层 50收容于第一网格凹槽 321中时，第一胶层 32可以对第一导电层 50 形成保护， 避免第一导电层 50在后续的工序中被破坏。 当然， 在其他的 实施例中， 第一导电层 50的厚度也可以等于第一网格凹槽 321的深度。
在本实施例中， 第一导电层 50为由导电线交叉构成的导电网格， 导 电网格包括多个网格单元。 具体在本实施例中， 导电线的线宽介于
500ηηι~5μηι之间。 具体地， 可使用刮涂技术在第一网格凹槽 321中填充 纳米银墨水， 再在 150°C条件下烧结， 使纳米银墨水中的银单质烧结成导 电线。 其中， 银墨水固含量 35% , 溶剂在烧结中挥发。 由于第一网格凹槽 321的形状预先压印成为所需电极的预设形状。 因此， 当导电网格形成后， 不用再进行成形操作， 从而节约了材料、 提高了效率。 当然， 第一导电层 50材料还可以为其他金属、 石墨烯、 碳纳米管、 氧化铟锡或导电高分子， 此时在第一网格凹槽 321中填充其他材料即可。
第二胶层 34层叠于第一胶层 32的表面。 第二胶层 34覆盖第一胶层 32及第一导电条带 50。 第二胶层 34远离基板 10的表面开设有第二网格 凹槽 341。第二网格凹槽 341可以通过压印的方式形成于第二胶层 34远离 基板 10的表面。 而且第二网格凹槽 341的形状可以根据需要， 压印成预 设形状。
第二导电层 60收容于第二网格凹槽 341中。 具体在本实施方式中， 第二导电层 60的形状与第二网格凹槽 341的形状相匹配。 由于第二网格 凹槽 341压印为预设形状， 将导电材料填充至第二网格凹槽 341中， 再进 行硬化， 即可形成第二导电层 60。 第二导电层 60不必通过蚀刻成型， 从 而可以节约原料， 降低成本。 第二导电层 60与第一导电层 50沿涂布胶层 30的厚度方向相互间隔。
第二导电层 60的厚度小于第二网格凹槽 341的深度， 从而当第二导 电层 60收容于第二网格凹槽 341中时，第二胶层 34可以对第二导电层 60 形成保护， 避免第二导电层 60在后续的工序中被破坏。 当然， 在其他的 实施例中， 第二导电层 60的厚度也可以等于第二网格凹槽 341的深度。 在本实施例中， 第二导电层 60为由导电线交叉构成的导电网格， 导 电网格包括多个网格单元。 具体在本实施例中， 导电线的线宽介于
500ηηι~5μηι之间。 具体地， 可使用刮涂技术在第二网格凹槽 341中填充 纳米银墨水， 再在 150°C条件下烧结， 使纳米银墨水中的银单质烧结成导 电线。 其中， 银墨水固含量 35% , 溶剂在烧结中挥发。 由于第二网格凹槽 341的形状预先压印成为所需电极的预设形状。 因此， 当导电网格形成后， 不用再进行成形操作， 从而节约了材料、 提高了效率。 当然， 第二网格凹 槽 341材料还可以为其他金属、 石墨烯、 碳纳米管、 氧化铟锡或导电高分 子， 此时在第二网格凹槽 341中填充其他材料即可。
第一导电层 50由一组沿第一方向 X延伸的第一导电条带 52组成。多 个第一导电条带 52沿第二方向 Y排布。 本实施方式中， 第一方向 X与第 二方向 Y大体相互垂直， 且第一方向 X与第二方向 Y均平行于第一表面 12。
第二导电层 60由一组沿第二方向 Y延伸的第二导电条带 62组成。多 个第二导电条带 52沿第一方向 X排布。第一导电条带 52在第二导电条带
62所在的平面上的投影与第二导电条带 62相交。
请一并参阅图 4， 本实施方式中， 第一导电层 50及第二导电层 60的 导电网格的网格单元为正六边形， 多个网格单元组成蜂巢状结构。 当然， 在其他的实施例中， 网格还可以为矩形、 平行四边形或曲边四边形， 曲边 四边形具有四条曲边，相对的两条区边具有相同的形状及曲线走向。比如， 图 5中的网格单元为菱形。
为进一步提高透光率， 第一导电层 50及第二导电层 60应最大程度重 叠， 以降低双层金属网格占取可视区的面积， 提高透光率。 优选地， 第二 导电层 60的网格单元与第一导电层 50的网格单元重叠， 网格单元重叠是 指网格单元的导电线的宽度相等， 且每一个网格单元的形状相同、 面积相 等，第一导电层 50的每一条导电线与第二导电层 60的每一条导电线正对， 第一导电层 50在第二导电层 60所在的平面的投影与第二导电层 60重合。 第一导电层 50及第二导电层 60的导电网格重叠使得第二导电层 60 的网格单元的导电线与第一导电层 50的网格单元的导电线不相互遮挡， 以降低双层导电网格占取可视区的面积， 提高透光率。
请同时参阅图 1至图 3，第一电极引线 70包括贯穿部 72及引线部 74。 贯穿部 72嵌设于第二胶层 34。贯穿部 72 自第二胶层 34远离基板 10的表 面延伸至第一导电层 50， 从而贯穿部 72的一端与第一导电层 50电连接。 第二胶层 34形成有用于收容贯穿部 72的通孔。 该通孔通过胶塞的形式形 成， 即通过光刻胶曝光显影的方式制备。 贯穿部 72通过在通孔中填充导 电材料的方式制备。 由于第一导电层 50由导电网格形成， 贯穿部 72与导 电网格中的至少两根导电线电连接。 引线部 74的一端与贯穿部 72远离第 一导电层 50的一端电连接。 触摸屏 100中， 第一电极引线 70用于将第一 导电层 50与电子设备的控制器电连接， 具体在本实施方式中， 引线部 74 的另一端与柔性电路板电连接， 进而通过柔性电路板与电子设备的控制器 电连接， 从而使控制器感测到触摸屏 100上的操作。
本实施方式中， 第二胶层 34远离基板 10的表面形成有用于收容第一 电极引线 70的引线部 74的凹槽， 第一电极引线 70的引线部收容于该凹 槽内。 第一电极引线 70的引线部 74为实心导电条。 第一电极引线 70的 引线部 74的厚度小于凹槽的深度， 从而当引线部 74收容于凹槽中时， 第 二胶层 34可以对引线部 74形成保护， 避免引线部 74在后续的工序中被 破坏。 当然， 在其他的实施例中， 引线部 74的厚度也可以等于凹槽的深 度。 更进一步的， 在其他实施例中， 用于收容引线部 74的凹槽可以省略， 此时第一电极引线 70的引线部 74排布在第二胶层 74远离基板 10的表面。
请参阅图 6， 在另一个实施例中， 第一电极引线 70的引线部 74由导 电线成网格交叉组成的导电网格形成。 引线部 74的导电网格的网格周期 比第一导电层 50的导电网格的网格周期小， 网格周期即网格单元的大小。 贯穿部 72大体为圆柱状， 引线部 74的一端与贯穿部 72电连接。 请参阅图 7， 在另一个实施例中， 第一电极引线 70还包括与引线部 74—体成型的套接部 76。第一电极引线 70的引线部 74及套接部 60由导 电线成网格交叉组成的导电网格形成。 引线部 74及套接部 60的导电网格 的网格周期比第一导电层 50的导电网格的网格周期小， 网格周期即网格 单元的大小。 贯穿部 72大体为圆柱状， 套接部 76套设于贯穿部 72的一 端， 从而可以增大套接部 76与贯穿部 72的接触面积， 从而提高第一电极 引线 70的稳定性。
请参阅图 8， 在另一个实施例中， 第一电极引线 70还包括与引线部 74—体成型的套接部 76。第一电极引线 70的引线部 74及套接部 60由导 电线成网格交叉组成的导电网格形成。 引线部 74及套接部 60的导电网格 的网格周期比第一导电层 50的导电网格的网格周期小， 网格周期即网格 单元的大小。 贯穿部 72大体为四棱柱状， 套接部 76套设于贯穿部 72的 一端， 从而可以增大套接部 76与贯穿部 72的接触面积， 从而提高第一电 极引线 70的稳定性。
请再次参阅图 4， 第二电极引线 80包括引线部 82及形成于引线部 82 一端的连接部 84。 触摸屏 100中， 第二电极引线 80用于将第二导电层 60 与电子设备的控制器电连接， 具体在本实施方式中， 引线部 82的另一端 与柔性电路板电连接， 进而通过柔性电路板与电子设备的控制器电连接， 从而使控制器感测到触摸屏 100上的操作。 本实施方式中， 第二电极引线 80为实心导电条， 连接部 84与第二导电层 60的第二导电条带 62的导电 网格中的至少两根导电线电连接。
本实施方式中， 第二胶层 34远离基板 10的表面形成有用于收容第二 电极引线 80的凹槽， 第二电极引线 80收容于该凹槽内。第二电极引线 80 为实心导电条。 第二电极引线 80的厚度小于凹槽的深度， 从而当第二电 极引线 80收容于凹槽中时， 第二胶层 34可以对第二电极引线 80形成保 护， 避免第二电极引线 80在后续的工序中被破坏。 当然， 在其他的实施 例中， 第二电极引线 80的厚度也可以等于凹槽的深度。 更进一步的， 在 其他实施例中， 用于收容第二电极引线 80的凹槽可以省略， 此时第二电 极引线 80排布在第二胶层 74远离基板 10的表面。
请同时参阅图 1及图 9， 在另一个实施例中， 第二电极引线 80由导电 线成网格交叉组成的导电网格形成。 第二电极引线 80的导电网格的网格 周期比第二导电层 60的导电网格的网格周期小， 网格周期即网格单元的 大小。 由于第二电极引线 80的导电网格的网格周期比第二导电层 60的导 电网格的网格周期不同， 第二电极引线 80的连接部 84与第二导电层 60 电连接时， 可能难以对准。 因此， 进一步的， 触摸屏 100还包括电极转接 线 90。 连接部 84通过电极转接线 90与第二导电层 60电连接。 电极转接 线 90为连续的导电线， 故电极转接线 90可以同时与第二电极引线 80的 连接部 84及第二导电层 60的导电网格中至少两条导电线电连接， 使第二 电极引线 80与第二导电层 60更好的电连接。
与传统的触摸屏感应模组相比， 上述触摸屏 100具有至少如下优点：
1、 第一导电层 50及第二导电层 60分别收容于第一网格凹槽 321及 第二网格凹槽 341中， 因此在制备第一导电层 50及第二导电层 60时可以 通过刮涂等方式制备， 无需通过蚀刻成型， 从而可以节约原料， 降低成本;
2、 第一导电层 50及第二导电层 60的网格单元可以通过控制导电线 的宽度和密度达到视觉透明的效果； 当第一导电层 50及第二导电层 60的 导电网格重叠使得第二导电层 60的网格单元的导电线与第一导电层 50的 网格单元的导电线不相互遮挡， 以降低双层导电网格占取可视区的面积， 提高透光率；
3、 触摸屏 100采用基板 10与涂布胶层 30配合， 厚度相较于传统的 两层玻璃基板大大减小；
4、第一电极引线 70与第二电极引线 80远离第一导电层 50及第二导 电层 60的一端与柔性电路板贴合， 第一电极引线 70及第二电极引线 80 位于涂布胶层 30的同一侧， 从而可以简化柔性电路板的结构及贴合的工 序， 降低触摸屏 100的成本。 需要说明的是， 第一胶层 32及第二胶层 34中的一个可以省略， 此时 涂布胶层 30为单层结构。 第一导电层 50及第二导电层 60均嵌设于涂布 胶层 30， 第二导电层 60与第一导电层 50沿涂布胶层 30的厚度方向相互 间隔， 且第二导电层 60相较于第一导电层 50远离基板 10。
以上所述实施例仅表达了本发明的几种实施方式， 其描述较为具体和 详细， 但并不能因此而理解为对本发明专利范围的限制。 应当指出的是， 对于本领域的普通技术人员来说， 在不脱离本发明构思的前提下， 还可以 做出若干变形和改进， 这些都属于本发明的保护范围。 因此， 本发明专利 的保护范围应以所附权利要求为准。

Claims

权 利 要 求 书
1、 一种触摸屏， 其特征在于， 包括：
基板， 包括相对的第一表面及第二表面；
涂布胶层， 设于该基板的第一表面；
嵌设于该涂布胶层中的第一导电条带、 第二导电条带， 所述第一导电 条带及所述第二导电条带由嵌设于该涂布胶层中的导电网格构成， 所述第 一导电条带沿第一方向延伸， 所述第二导电条带沿第二方向延伸且相较于 所述第一导电条带远离所述基板， 所述第一导电条带与所述第二导电条带 沿所述涂布胶层的厚度方向相互间隔， 所述第一导电条带在所述第二导电 条带所在的平面上的投影与所述第二导电条带相交；
第一电极引线及第二电极引线， 设于所述涂布胶层远离所述基板的一 侧， 所述第一电极引线与第二电极引线的一端分别与所述第一导电条带及 第二导电条带电连接， 所述第一电极引线包括贯穿部及与贯穿部电连接的 引线部， 所述贯穿部嵌设于所述涂布胶层中， 且所述贯穿部自所述涂布胶 层远离所述基板的一侧延伸至所述第一导电条带的表面且与第一导电条 带电连接。
2、 根据权利要求 1所述的触摸屏， 其特征在于， 所述导电网格由多 条导电线组成， 所述贯穿部与形成所述第一导电条带的导电网格中的至少 两条导电线电连接。
3、 根据权利要求 1所述的触摸屏， 其特征在于， 所述导电网格由多 个网格单元构成， 所述网格单元为正方形、 菱形、 正六边形、 长方形或随 机网格形状。
4、 根据权利要求 1所述的触摸屏， 其特征在于， 所述导电网格由多 条导电线组成， 所述第二电极引线为实心导电条， 所述第二电极引线与形 成所述第一导电条带的所述导电网格的至少两条导电线电连接。
5、 根据权利要求 4所述的触摸屏， 其特征在于， 所述第二电极引线 包括引线部及形成于所述引线部一端的连接部， 所述连接部与形成所述第 一导电条带的所述导电网格的至少两条导电线电连接。
6、 根据权利要求 1所述的触摸屏， 其特征在于， 所述第一电极引线 的引线部及所述第二电极引线由导电网格形成。
7、 根据权利要求 6所述的触摸屏， 其特征在于， 形成所述第一电极 引线的引线部及所述第二电极引线的导电网格的网格单元比形成第一导 电条带及所述第二导电条带的网格单元小。
8、 根据权利要求 6所述的触摸屏， 其特征在于， 还包括电极转接线， 所述第二电极引线通过所述电极转接线与形成所述第二导电条带的所述 导电网格的至少两条导电线电连接。
9、 根据权利要求 8所述的触摸屏， 其特征在于， 所述第二电极引线 包括引线部及形成于所述引线部一端的连接部， 所述第二电极引线的连接 部与所述电极转接线电连接。
10、根据权利要求 6所述的触摸屏， 其特征在于， 所述贯穿部为柱状， 所述第一导电引线的一端与所述贯穿部电连接。
1 1、根据权利要求 6所述的触摸屏， 其特征在于， 所述贯穿部为柱状， 所述第一导电引线的一端形成有套接部， 所述套接部套设于所述贯穿部的 一端且与所述贯穿部电连接。
12、 根据权利要求 1所述的触摸屏， 其特征在于， 所述涂布胶层包括 依次层叠的第一胶层及第二胶层， 所述第一胶层远离所述基板的表面形成 有第一网格凹槽， 所述第一导电条带收容于所述第一网格凹槽中， 所述第 一导电条带的厚度不大于所述第一网格凹槽的深度， 所述第二胶层覆盖所 述第一胶层及所述第一导电条带， 所述第二胶层远离所述基板的表面形成 有第二网格凹槽， 所述第二导电条带收容于所述第二网格凹槽， 所述贯穿 部贯穿所述第二胶层。
13、 根据权利要求 1所述的触摸屏， 其特征在于， 所述第一导电条带 及所述第二导电条带的材料为金属、 石墨烯、 碳纳米管、 氧化铟锡或导电 高分子。
14、 根据权利要求 1所述的触摸屏， 其特征在于， 所述第一导电条带 为多个， 多个第一导电条带沿所述第二方向依次排布组成第一导电层。
15、 根据权利要求 1所述的触摸屏， 其特征在于， 所述第二导电条带 为多个， 多个第二导电条带沿所述第一方向依次排布组成第二导电层。
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CN102375627A (zh) * 2010-08-13 2012-03-14 信利光电(汕尾)有限公司 电容式触摸屏的触控结构及其制造方法
CN102262491A (zh) * 2011-08-16 2011-11-30 苏州瀚瑞微电子有限公司 一种电容传感器
CN102930922A (zh) * 2012-10-25 2013-02-13 南昌欧菲光科技有限公司 一种具有各向异性导电的透明导电膜
CN103197798A (zh) * 2013-04-02 2013-07-10 深圳欧菲光科技股份有限公司 触摸屏

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CN103197798A (zh) 2013-07-10
CN103197798B (zh) 2014-05-07

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