WO2019218461A1 - 一种触控面板及触控显示装置 - Google Patents

一种触控面板及触控显示装置 Download PDF

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Publication number
WO2019218461A1
WO2019218461A1 PCT/CN2018/097105 CN2018097105W WO2019218461A1 WO 2019218461 A1 WO2019218461 A1 WO 2019218461A1 CN 2018097105 W CN2018097105 W CN 2018097105W WO 2019218461 A1 WO2019218461 A1 WO 2019218461A1
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Prior art keywords
conductive metal
metallic
ito
igzo
izo
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PCT/CN2018/097105
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English (en)
French (fr)
Inventor
李波
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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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Priority to US16/203,245 priority Critical patent/US20190354211A1/en
Publication of WO2019218461A1 publication Critical patent/WO2019218461A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • the present invention relates to the field of touch screen technologies, and in particular, to a touch panel and a touch display device.
  • AMOLED active matrix organic light emitting diode
  • ITO indium tin oxide
  • OGS cover integrated
  • Control on-cell touch and in-cell touch for LCD screens.
  • the materials used in touch technology include metal-mesh for large-size touch, and some relatively mature alternative technologies such as nano-silver materials, graphene materials, and conductive polymer materials. and many more.
  • ITO has dominated the market with its good optical properties and mature production processes, and it has become more stable under the current trend of high definition display.
  • ITO Due to the fragile nature of ITO due to its material itself, ITO has a risk of functional failure due to the fracture radius of curvature, so under the current development trend of fixed surfaces and foldable products There is an urgent need to reduce the risk of ITO fracture, and to develop a more flexible material to replace ITO, improve the quality of the production of touch panels.
  • the technical problem to be solved by the embodiments of the present invention is to provide a touch panel and a touch display device, which can reduce the risk of ITO fracture, and replace the ITO with a flexible composite material to improve the manufacturing quality.
  • an embodiment of the present invention provides a touch panel including a base substrate, and a touch function area, a metal wiring area, and a press-out line area are respectively formed on the base substrate;
  • the touch function area includes a plurality of sensing electrode chains arranged at intervals and a plurality of driving electrode chains arranged in a spaced relationship;
  • Each of the sensing electrode chains includes a plurality of sensing electrodes made of a first conductive metal, and the adjacent two sensing electrodes are bridged by at least one connecting bridge; each of the sensing electrode chains Each of the connecting bridges is provided with two through holes at both ends, and two bridges are realized by covering the upper surface thereof and the first conductive metal oxide film layer extending into the two through holes. Conductive conduction between the sensing electrodes;
  • Each of the driving electrode chains includes a plurality of driving electrodes made of a second conductive metal and connected in series; each of the driving electrode chains and each of the sensing electrode chains Each of the sensing electrodes is insulated from each other.
  • the first conductive metal is one of metal silver, metal copper, and metal aluminum; the second conductive metal includes one of metal silver, metal copper, and metal aluminum; the first conductive metal oxide
  • the film layer is formed by one of ITO, IGZO, and IZO; the connecting bridge is made of an inorganic insulating material or an organic insulating material.
  • the metal routing area is provided with a plurality of first connection electrodes corresponding to each of the sensing electrode chains and each driving electrode chain in the touch function area;
  • the first connection electrode is provided as a single layer structure formed of a second conductive metal oxide; or a composite metal structure formed of at least a second conductive metal oxide and a third conductive metal.
  • the first connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the third conductive metal and one of ITO, IGZO and IZO is used as the second a top layer made of a conductive metal oxide; or
  • the first connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a second conductive metal oxide, and is provided on the bottom layer of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as a third conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a first oxidation preventing layer wherein the first oxidation preventing layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • Conductive film layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • the plurality of second connection electrodes respectively connected to each of the first connection electrodes of the metal wiring regions through the metal traces are provided on the press-out line region;
  • the second connection electrode is provided as a single layer structure formed of a third conductive metal oxide; or a composite metal structure formed of at least a third conductive metal oxide and a fourth conductive metal.
  • the second connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the fourth conductive metal and one of the third layer of ITO, IGZO and IZO is used as the third a top layer made of a conductive metal oxide; or
  • the second connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a third conductive metal oxide, and a bottom layer formed of one of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as the fourth conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a second anti-oxidation layer wherein the second oxidation prevention layer is a conductive film layer made of one of ITO, IGZO, and IZO.
  • the inorganic insulating material comprises silicon oxide, silicon nitride and silicon dioxide; the organic insulating material comprises acrylic, polyurethane and polysiloxane; the substrate is composed of a cyclic olefin copolymer or a terephthalate Made from glycol esters.
  • the method further includes: an insulating protective layer for blocking intrusion of water and oxygen in the air; wherein the insulating protective layer covers the metal wiring area and the touch function area.
  • the insulating protective layer further covers a partial region above the second connection electrode of the press-out line region.
  • the embodiment of the present invention further provides another touch panel, which includes a substrate, and a touch function area, a metal trace area, and a press-out line area are respectively formed on the base substrate; ,
  • the touch function area includes a plurality of sensing electrode chains arranged at intervals and a plurality of driving electrode chains arranged in a spaced relationship;
  • Each of the sensing electrode chains includes a plurality of sensing electrodes made of a first conductive metal, and the adjacent two sensing electrodes are bridged by at least one connecting bridge; each of the sensing electrode chains Each of the connecting bridges is provided with two through holes at both ends, and two bridges are realized by covering the upper surface thereof and the first conductive metal oxide film layer extending into the two through holes. Conductive conduction between the sensing electrodes;
  • Each of the driving electrode chains includes a plurality of driving electrodes made of a second conductive metal and connected in series; each of the driving electrode chains and each of the sensing electrode chains Each of the sensing electrodes is insulated from each other;
  • the metal routing area is provided with a plurality of first connection electrodes corresponding to each of the sensing electrode chains and each driving electrode chain in the touch function area;
  • the first connection electrode is provided as a single layer structure formed of a second conductive metal oxide; or a composite metal structure formed of at least a second conductive metal oxide and a third conductive metal;
  • the plurality of second connection electrodes respectively connected to each of the first connection electrodes of the metal wiring regions through the metal traces are provided on the press-out line region;
  • the second connection electrode is provided as a single layer structure formed of a third conductive metal oxide; or a composite metal structure formed of at least a third conductive metal oxide and a fourth conductive metal.
  • the first conductive metal is one of metal silver, metal copper, and metal aluminum; the second conductive metal includes one of metal silver, metal copper, and metal aluminum; the first conductive metal oxide
  • the film layer is formed by one of ITO, IGZO, and IZO; the connecting bridge is made of an inorganic insulating material or an organic insulating material.
  • the first connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the third conductive metal and one of ITO, IGZO and IZO is used as the second a top layer made of a conductive metal oxide; or
  • the first connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a second conductive metal oxide, and is provided on the bottom layer of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as a third conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a first oxidation preventing layer wherein the first oxidation preventing layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • Conductive film layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • the second connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the fourth conductive metal and one of the third layer of ITO, IGZO and IZO is used as the third a top layer made of a conductive metal oxide; or
  • the second connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a third conductive metal oxide, and a bottom layer formed of one of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as the fourth conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a second anti-oxidation layer wherein the second oxidation prevention layer is a conductive film layer made of one of ITO, IGZO, and IZO.
  • the insulating protective layer for blocking the intrusion of water and oxygen in the air; wherein the insulating protective layer covers the metal wiring area and the touch function area, and the insulating protective layer is further Covering a partial region above the second connection electrode of the press-out line region.
  • the embodiment of the present invention further provides a touch display device, comprising: a touch panel; the touch panel includes a base substrate, and the touch function area and the metal are respectively formed on the base substrate a wiring area and a press-out area; wherein
  • the touch function area includes a plurality of sensing electrode chains arranged at intervals and a plurality of driving electrode chains arranged in a spaced relationship;
  • Each of the sensing electrode chains includes a plurality of sensing electrodes made of a first conductive metal, and the adjacent two sensing electrodes are bridged by at least one connecting bridge; each of the sensing electrode chains Each of the connecting bridges is provided with two through holes at both ends, and two bridges are realized by covering the upper surface thereof and the first conductive metal oxide film layer extending into the two through holes. Conductive conduction between the sensing electrodes;
  • Each of the driving electrode chains includes a plurality of driving electrodes made of a second conductive metal and connected in series; each of the driving electrode chains and each of the sensing electrode chains Each of the sensing electrodes is insulated from each other.
  • the first conductive metal is one of metal silver, metal copper, and metal aluminum; the second conductive metal includes one of metal silver, metal copper, and metal aluminum; the first conductive metal oxide
  • the film layer is formed by one of ITO, IGZO, and IZO; the connecting bridge is made of an inorganic insulating material or an organic insulating material.
  • the metal routing area is provided with a plurality of first connection electrodes corresponding to each of the sensing electrode chains and each driving electrode chain in the touch function area;
  • the first connection electrode is provided as a single layer structure formed of a second conductive metal oxide; or a composite metal structure formed of at least a second conductive metal oxide and a third conductive metal.
  • the first connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the third conductive metal and one of ITO, IGZO and IZO is used as the second a top layer made of a conductive metal oxide; or
  • the first connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a second conductive metal oxide, and is provided on the bottom layer of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as a third conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a first oxidation preventing layer wherein the first oxidation preventing layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • Conductive film layer is an insulating layer made of an inorganic insulating material or an organic insulating material, or is made of at least one of ITO, IGZO, and IZO.
  • the plurality of second connection electrodes respectively connected to each of the first connection electrodes of the metal wiring regions through the metal traces are provided on the press-out line region;
  • the second connection electrode is provided as a single layer structure formed of a third conductive metal oxide; or a composite metal structure formed of at least a third conductive metal oxide and a fourth conductive metal.
  • the second connecting electrode of the composite metal structure comprises a bottom layer made of one of metal silver, metal copper and metal aluminum as the fourth conductive metal and one of the third layer of ITO, IGZO and IZO is used as the third a top layer made of a conductive metal oxide; or
  • the second connecting electrode of the composite metal structure includes a bottom layer made of one of ITO, IGZO, and IZO as a third conductive metal oxide, and a bottom layer formed of one of the ITO, IGZO, and IZO.
  • An intermediate layer made of one of metallic silver, metallic copper, and metallic aluminum as the fourth conductive metal, and an intermediate layer formed of one of metallic silver, metallic copper, and metallic aluminum.
  • a second anti-oxidation layer wherein the second oxidation prevention layer is a conductive film layer made of one of ITO, IGZO, and IZO.
  • the present invention uses the first conductive metal and the second conductive metal to replace the traditional ITO, and respectively forms the sensing electrode and the driving electrode of the touch function area in the touch panel, so that the touch is made.
  • the electrode material on the touch function area of the panel is a flexible composite material (such as conductive metal + conductive metal oxide), which not only ensures good electrical conductivity, but also avoids the easy breakage caused by the traditional use of ITO materials alone. Risk, further improving the quality of production;
  • the present invention also sets the first connection electrode of the metal wiring region in the touch panel to be replaced by a composite metal structure of a third conductive metal and a second conductive metal oxide.
  • ITO not only improves the flexibility of the electrode material on the metal wiring area, but also ensures good electrical conductivity, and avoids the risk of easy breakage caused by the traditional use of ITO materials alone, and further improves the production quality;
  • the present invention also sets the second connection electrode of the touch-out area in the touch panel to be replaced by a composite metal structure of the fourth conductive metal and the third conductive metal oxide.
  • ITO not only improves the flexibility of the electrode material on the press-out line area, but also ensures good electrical conductivity, and avoids the risk of easy breakage caused by the traditional use of ITO materials alone, and further improves the quality of production.
  • FIG. 1 is a schematic plan view showing a top view of a touch panel according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view taken along line D-D of Figure 1;
  • Figure 3 is another cross-sectional view taken along line D-D of Figure 1
  • Figure 4 is another cross-sectional view taken along line D-D of Figure 1;
  • Figure 5 is a cross-sectional view taken along line D-D of Figure 1;
  • Figure 6 is another cross-sectional view taken along line D-D of Figure 1
  • Figure 7 is a further cross-sectional view taken along line D-D of Figure 1.
  • a touch panel according to a first embodiment of the present invention includes a base substrate 1 composed of a cyclic olefin copolymer COP or ethylene terephthalate. Made of ester PET, enabling the touch panel to be a flexible panel with foldable;
  • the base substrate 1 is respectively formed with a touch function area AA for integrating the corresponding touch electrodes, a metal wiring area BB for the metal traces, and a press-out line area CC for binding to the external components.
  • the metal routing area BB located on the periphery of the touch function area AA connects each sensing electrode chain and each driving electrode chain in the touch function area AA to the pressing output line area CC through the metal wiring, so that the touch function area AA
  • the sensing electrode chain and the driving electrode chain can obtain corresponding phase control signals provided by external components bound to the crimping outlet area CC;
  • the touch function area AA includes a plurality of sensing electrode chains L1 arranged at intervals and a plurality of driving electrode chains L2 arranged in a spaced relationship;
  • Each of the sensing electrode chains L1 includes a plurality of sensing electrodes 4 made of a first conductive metal, and the adjacent two sensing electrodes 4 are bridged by at least one connecting bridge 6; each sensing electrode chain L1
  • Each of the connecting bridges 6 is provided with two through holes 61 at both ends, and two bridges are realized by covering the upper surface thereof and the first conductive metal oxide film layer extending into the two through holes 61. Electrically conducting between the sensing electrodes 4; wherein the connecting bridge 6 is made of an inorganic insulating material or an organic insulating material;
  • Each of the driving electrode chains L2 includes a plurality of driving electrodes 5 made of a second conductive metal, and a plurality of driving electrodes 5 are connected in series; each of the driving electrode chains L2 drives the electrodes 5 and each Each of the sensing electrodes 4 in the sensing electrode chain L1 is insulated;
  • the metal connection area BB is provided with a plurality of first connection electrodes 2 corresponding to each of the sensing electrode chains and each of the driving electrode chains in the touch function area AA; the first connection electrode 2 is disposed by the second conductive metal a single layer structure formed of an oxide; or a composite metal structure formed of at least a second conductive metal oxide and a third conductive metal;
  • the press-connecting line area CC is provided with a plurality of second connecting electrodes 3 respectively connected to each of the first connecting electrodes 2 of the metal wiring area BB through metal traces; the second connecting electrode 3 is disposed to be electrically conductive a single layer structure formed of a metal oxide; or a composite metal structure formed of at least a third conductive metal oxide and a fourth conductive metal.
  • an insulating protective layer 7 is disposed above the touch panel, and the insulating protective layer 7 covers the metal wiring area BB and the touch function area AA.
  • the insulation protection layer 7 also covers a partial area above the second connection electrode 3 of the press-out line area CC, so that it does not interfere with external elements. The device's binding connection and ensure the binding effect.
  • each of the sensing electrodes 4 on each of the sensing electrode chains L1 in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains L2 are made of a conductive metal.
  • the two sensing electrodes 4 in each of the sensing electrode chains L1 are electrically connected by the first conductive metal oxide, so that the electrode material on the touch function area of the touch panel is formed as a conductive metal.
  • Conductive metal oxide composite material which has better flexibility, not only ensures good electrical conductivity, but also avoids the risk of easy fracture caused by traditional ITO materials alone, and further improves the quality of production.
  • the electrode material of the first connection electrode 2 of the metal wiring region BB and/or the second connection electrode 3 of the bonding wire region CC may be made of conductive metal + conductive metal oxide.
  • the composite material replaces the traditional ITO material, and in the case of ensuring good electrical conductivity, the risk of easy breakage caused by the traditional use of the ITO material alone can be avoided, and the quality of the production is further improved.
  • the first connection electrode 2 of the metal wiring region BB adopts a composite metal structure, and may be a structure in which the third conductive metal is on the bottom and the second conductive metal oxide is on the surface, or the second conductive metal oxide may be under And the structure of the third conductive metal is on.
  • the composite metal structure of the first connection electrode 2 adopts a structure in which the top is set as the third conductive metal, since the third conductive metal is exposed to the upper portion and is easily oxidized, the conductive effect is weakened or lost, so the first of the composite metal structures should be A first anti-oxidation layer is further disposed on the three conductive metal.
  • the first anti-oxidation layer may be an insulating layer formed of an inorganic insulating material or an organic insulating material, or may be a conductive film layer formed by including, but not limited to, one of ITO, IGZO, and IZO.
  • the second connecting electrode 3 of the press-out line area CC adopts a composite metal structure, and may be a structure in which the fourth conductive metal is on the lower side and the third conductive metal oxide is on the bottom, and the third conductive metal oxide may be in the lower layer.
  • the second oxidation prevention layer only includes but not limited to ITO, IGZO, IZO. One of them forms a conductive film layer.
  • the first conductive metal, the second conductive metal, the third conductive metal, and the fourth conductive metal are all but one of, but not limited to, metallic silver, metallic copper, and metallic aluminum; the first conductive metal The oxide, the second conductive metal oxide, and the third conductive metal oxide are all including, but not limited to, one of ITO, IGZO, and IZO; and the inorganic insulating materials include, but are not limited to, silicon oxide, silicon nitride, and silicon dioxide; The organic insulating materials include, but are not limited to, acrylic, polyurethane, and polysiloxane.
  • each of the sensing electrodes 4 on each of the sensing electrode chains in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains are made of metallic silver Ag. Electrical conduction between the two adjacent sensing electrodes 4 through the ITO conductive film layer;
  • the first connection electrode 2 of the metal wiring area BB and the second connection electrode 3 of the press-out line area CC are also fabricated using ITO of a conventional single-layer structure.
  • each of the sensing electrodes 4 on each of the sensing electrode chains in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains are made of metallic silver Ag.
  • the first connection electrode 2 of the metal wiring region BB adopts a composite metal structure
  • the metal silver Ag is used as the third conductive metal to form the bottom layer 211
  • the ITO is used as the second conductive metal oxide over the third conductive metal Ag.
  • the second connection electrode 3 of the press-out line area CC is also made of ITO of a conventional single-layer structure.
  • each of the sensing electrodes 4 on each of the sensing electrode chains in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains are made of metallic silver Ag.
  • the first connection electrode 2 of the metal wiring region BB adopts a composite metal structure, and a conductive film layer formed of ITO as the second conductive metal oxide is used as the bottom layer 221, and metal silver Ag is used as the first layer 221 formed on the ITO.
  • the third conductive metal is used to form the intermediate layer 222, and the conductive film layer formed of ITO is further used as the top layer 223 (ie, the first oxidation preventing layer) on the intermediate layer 222 formed of the third conductive metal Ag; of course, an inorganic insulating material may also be used. Or an insulating layer formed of an organic insulating material as a top layer 223;
  • the second connection electrode 3 of the press-out line area CC is also made of ITO of a conventional single-layer structure.
  • each of the sensing electrodes 4 on each of the sensing electrode chains in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains are made of metallic silver Ag.
  • the first connection electrode 2 of the metal wiring region BB adopts a composite metal structure, and a conductive film layer formed of ITO as the second conductive metal oxide is used as the bottom layer 221, and metal silver Ag is used as the first layer 221 formed on the ITO.
  • the third conductive metal is used to form the intermediate layer 222, and the conductive film layer formed of ITO is further used as the top layer 223 (ie, the first oxidation preventing layer) on the intermediate layer 222 formed of the third conductive metal Ag; of course, an inorganic insulating material may also be used. Or an insulating layer formed of an organic insulating material as a top layer 223;
  • the second connection electrode 3 of the press-out line area CC adopts a composite metal structure, the metal silver Ag is used as the fourth conductive metal to form the bottom layer 311, and the ITO is formed as the third conductive metal oxide above the third conductive metal Ag.
  • the conductive film layer serves as the top layer 312.
  • each of the sensing electrodes 4 on each of the sensing electrode chains in the touch function area AA and each of the driving electrodes 5 on each of the driving electrode chains are made of metallic silver Ag.
  • the first connection electrode 2 of the metal wiring region BB adopts a composite metal structure, and a conductive film layer formed of ITO as the second conductive metal oxide is used as the bottom layer 221, and metal silver Ag is used as the first layer 221 formed on the ITO.
  • the third conductive metal is used to form the intermediate layer 222, and the conductive film layer formed of ITO is further used as the top layer 223 (ie, the first oxidation preventing layer) on the intermediate layer 222 formed of the third conductive metal Ag; of course, an inorganic insulating material may also be used. Or an insulating layer formed of an organic insulating material as a top layer 223;
  • the second connecting electrode 3 of the press-out line area CC adopts a composite metal structure, and a conductive film layer formed by using ITO as the third conductive metal oxide is used as the bottom layer 321 , and metal silver Ag is used as the fourth conductive metal on the bottom layer 321 formed of ITO.
  • the intermediate layer 322 is formed, and a conductive film layer formed of ITO is used as the top layer 323 (i.e., the second oxidation protecting layer) on the intermediate layer 322 formed of the third conductive metal Ag.
  • the technical solution of FIG. 7 is different from the technical solution of FIG. 6 , based on the technical solution of FIG. 6 , above the touch function area AA, the metal routing area. A portion of the area above the BB and the second connection electrode 3 of the press-out line area CC is covered with an insulating protective layer 7.
  • the second embodiment of the present invention further provides a touch display device, which includes the touch panel provided by the first embodiment of the present invention.
  • the touch panel of the second embodiment of the present invention has the same structure and connection relationship as the touch panel of the first embodiment of the present invention. For details, refer to the related content of the touch panel in the first embodiment of the present invention. I will not repeat them one by one.
  • the present invention uses the first conductive metal and the second conductive metal to replace the traditional ITO, and respectively forms the sensing electrode and the driving electrode of the touch function area in the touch panel, so that the touch is made.
  • the electrode material on the touch function area of the panel is a flexible composite material (such as conductive metal + conductive metal oxide), which not only ensures good electrical conductivity, but also avoids the easy breakage caused by the traditional use of ITO materials alone. Risk, further improving the quality of production;
  • the present invention also sets the first connection electrode of the metal wiring region in the touch panel to be replaced by a composite metal structure of a third conductive metal and a second conductive metal oxide.
  • ITO not only improves the flexibility of the electrode material on the metal wiring area, but also ensures good electrical conductivity, and avoids the risk of easy breakage caused by the traditional use of ITO materials alone, and further improves the production quality;
  • the present invention also sets the second connection electrode of the touch-out area in the touch panel to be replaced by a composite metal structure of the fourth conductive metal and the third conductive metal oxide.
  • ITO not only improves the flexibility of the electrode material on the press-out line area, but also ensures good electrical conductivity, and avoids the risk of easy breakage caused by the traditional use of ITO materials alone, and further improves the quality of production.

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Abstract

本发明提供一种触控面板，包括衬底基板，其上形成触控功能区、金属走线区及压合出线区；触控功能区设有多条间隔排布的感应电极链和驱动电极链；感应电极链包括由第一导电金属制作的多个感应电极，且相邻两个间通过至少一个连接桥桥接，每一连接桥均开设有两个通孔，并通过覆盖其上表面及延伸至两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极间电导通；驱动电极链包括由第二导电金属制作并串接在一起的多个驱动电极；驱动电极链中的每一个驱动电极与感应电极链中的每一个感应电极之间绝缘。实施本发明，降低ITO断裂风险，并采用柔性更好的复合材料来替代ITO，提高制作质量。

Description

一种触控面板及触控显示装置
本申请要求于2018年5月15日提交中国专利局、申请号为201810460282.1、发明名称为“一种触控面板及触控显示装置”的中国专利申请的优先权，上述专利的全部内容通过引用结合在本申请中。
技术领域
本发明涉及触控屏技术领域，尤其涉及一种触控面板及触控显示装置。
背景技术
随着主动矩阵有机发光二极管(AMOLED)屏幕技术的快速发展普及，柔性可折叠显示由不可能变成了现实，而且固定曲面的产品早已经推向了市场。
然而，不同于显示技术的单一性，触控技术相对简单而且具有明显的多样性。目前，触控技术最普遍使用的材料是氧化铟锡(ITO)，ITO又由于基材及所用的位置的不同，将触控技术分为盖板集成式(OGS)触控、外挂式薄膜触控、外嵌式(On-Cell)触控以及用于LCD屏幕的内嵌式(In-Cell)触控。另外，触控技术使用的材料还有用于大尺寸触控的金属网格(Metal-mesh)，此外还有一些相对不太成熟的替代技术，比如纳米银材料、石墨烯材料以及导电高分子材料等等。尽管替代技术层出不穷，但是ITO以其良好的光学特性已及成熟的生产工艺仍然占据市场主流，并且在目前显示屏高清晰度的发展趋势下反而地位更加稳固。
由于ITO因其材料本身的原因也具有易碎裂的特性，在弯折曲率半径较小的情况下，ITO存在断裂而导致功能失效的风险，因此在目前固定曲面和可折叠产品的发展趋势下，急需降低ITO断裂风险，并开发出柔性更好的材 料来替代ITO，提高触控面板的制作质量。
发明内容
本发明实施例所要解决的技术问题在于，提供一种触控面板及触控显示装置，降低ITO断裂风险，并采用柔性更好的复合材料来替代ITO，提高制作质量。
为了解决上述技术问题，本发明实施例提供了一种触控面板，包括衬底基板，且所述衬底基板上分别形成有触控功能区、金属走线区以及压合出线区；其中，
所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极之间电导通；
每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电极链中的每一个感应电极之间均绝缘。
其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属 氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极；其中，
所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构。
其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由 至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由ITO、IGZO、IZO其中之一种制作而成的导电膜层。
其中，所述无机绝缘材料包括氧化硅、氮化硅和二氧化硅；所述有机绝缘材料包括亚克力、聚氨酯和聚硅氧烷；所述衬底基板由环烯烃共聚物或对苯二甲酸乙二醇酯制作而成。
其中，还包括：用于阻隔空气中水氧侵入的绝缘保护层；其中，所述绝缘保护层覆盖于所述金属走线区及所述触控功能区的上方。
其中，所述绝缘保护层还覆盖于所述压合出线区的第二连接电极上方的部分区域。
相应的，本发明实施例还提供了另一种触控面板，其中，包括衬底基板，且所述衬底基板上分别形成有触控功能区、金属走线区以及压合出线区；其 中，
所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极之间电导通；
每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电极链中的每一个感应电极之间均绝缘；
其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极；其中，
所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构；
其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之 一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由ITO、IGZO、IZO其中之一种制作而成的导电膜层。
其中，还包括：用于阻隔空气中水氧侵入的绝缘保护层；其中，所述绝缘保护层覆盖于所述金属走线区及所述触控功能区的上方，且所述绝缘保护层还覆盖于所述压合出线区的第二连接电极上方的部分区域。
相应的，本发明实施例又提供了一种触控显示装置，其中，包括触控面板；所述触控面板包括衬底基板，且所述衬底基板上分别形成有触控功能区、金属走线区以及压合出线区；其中，
所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极之间电导通；
每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电 极链中的每一个感应电极之间均绝缘。
其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极；其中，
所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构。
其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由ITO、IGZO、IZO其中之一种制作而成的导电膜层。
综上，本发明实施例具有如下有益效果：
1、与传统的触控面板相比，本发明采用第一导电金属和第二导电金属来替代传统的ITO，分别制作出触控面板中触控功能区的感应电极及驱动电极，使得触控面板中触控功能区上的电极材料为柔性更好的复合材料(如导电金属+导电金属氧化物)，不仅能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，进一步的提高了制作质量；
2、与传统的触控面板相比，本发明还将触控面板中金属走线区的第一连接电极设置为由第三导电金属和第二导电金属氧化物的复合金属结构来替代传统的ITO，不仅提高了金属走线区上的电极材料的柔性，也能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，更进一步提高了制作质量；
3、与传统的触控面板相比，本发明还将触控面板中压合出线区的第二连接电极设置为由第四导电金属和第三导电金属氧化物的复合金属结构来替代传统的ITO，不仅提高了压合出线区上的电极材料的柔性，也能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，更进一步提高了制作质量。
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，下面将对实施例或现有技术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为本发明实施例提供的一种触控面板的俯视平面结构示意图；
图2为图1中D-D向的一剖视图；
图3为图1中D-D向的另一剖视图
图4为图1中D-D向的又一剖视图；
图5为图1中D-D向的一剖视图；
图6为图1中D-D向的另一剖视图
图7为图1中D-D向的又一剖视图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述。
如图1至图7所示，为本发明实施例一中，提供的一种触控面板，包括衬底基板1，该衬底基板1由环烯烃共聚物COP或对苯二甲酸乙二醇酯PET制作而成，使得触控面板能够成为具有可折叠的柔性面板；其中，
该衬底基板1上分别形成有用于集成相应触控电极的触控功能区AA、用于金属走线的金属走线区BB以及用于与外部元器件绑定连接的压合出线区CC，位于触控功能区AA***的金属走线区BB通过金属走线将触控功能区AA中每条感应电极链及每条驱动电极链连接至压合出线区CC处，使得触控功能区AA中的感应电极链及驱动电极链能够获得绑定在压合出线区CC处的外部元器件所提供的对应相控信号；
其中，触控功能区AA包括多条间隔排列分布的感应电极链L1和多条间隔排列分布的驱动电极链L2；
每条感应电极链L1均包括由第一导电金属制作而成的多个感应电极4，且相邻的两个感应电极4之间均通过至少一个连接桥6进行桥接；每条感应电极链L1中的每一个连接桥6上均开设有位于两端的两个通孔61，并通过覆盖其上表面及延伸至两个通孔61中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极4之间电导通；其中，连接桥6采用无机绝缘材料或有机绝缘材料制作而成；
每条驱动电极链L2均包括由第二导电金属制作而成的多个驱动电极5，且多个驱动电极5串接在一起；每条驱动电极链L2中的每一个驱动电极5与每条感应电极链L1中的每一个感应电极4之间均绝缘；
其中，金属走线区BB设有与触控功能区AA中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极2；第一连接电极2设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构；
其中，压合出线区CC上设有通过金属走线与金属走线区BB的每一个第一连接电极2分别相连的多个第二连接电极3；第二连接电极3设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
当然，为了阻隔空气中水氧侵入，在触控面板上方还设有绝缘保护层7，该绝缘保护层7覆盖于金属走线区BB及触控功能区AA的上方。同时，为了对压合出线区CC的第二连接电极3进行保护，该绝缘保护层7还覆盖于压合出线区CC的第二连接电极3上方的部分区域，这样不会干扰到与外部元器件的绑定连接并确保绑定效果。
可以理解的是，由于考虑到ITO的易脆性，触控功能区AA中每条感应电极链L1上的每一个感应电极4和每条驱动电极链L2上的每一个驱动电极5都采用导电金属制作而成，并且每条感应电极链L1中相邻的两个感应电 极4通过第一导电金属氧化物来实现电导通，从而使得触控面板中触控功能区上的电极材料形成为导电金属+导电金属氧化物方式的复合材料，具有更好的柔性，不仅能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，进一步的提高了制作质量。当然，在成本充足的情况下，可以将金属走线区BB的第一连接电极2和/或将压合出线区CC的第二连接电极3的电极材料都采用导电金属+导电金属氧化物方式的复合材料来替代传统的ITO材料，在确保良好的导电性情况下，还能避免传统单独使用ITO材料所带来的易断裂风险，更进一步的提高了制作质量。
应当说明的是，金属走线区BB的第一连接电极2采用复合金属结构，可以是第三导电金属在下而第二导电金属氧化物在上的结构，也可以是第二导电金属氧化物在下而第三导电金属在上的结构。一旦第一连接电极2的复合金属结构采用顶部设置为第三导电金属的结构时，因第三导电金属暴露在上方容易被氧化，使得导电效果减弱或丢失，故应在该复合金属结构的第三导电金属上面还要设置第一防氧化层。其中，该第一防氧化层可以是无机绝缘材料或有机绝缘材料形成的绝缘层，也可以是包括但不限于ITO、IGZO、IZO其中之一种形成的导电膜层。
同理，压合出线区CC的第二连接电极3采用复合金属结构，可以是第四导电金属在下而第三导电金属氧化物在上的结构，也可以是第三导电金属氧化物在下而第四导电金属在上的结构。一旦第二连接电极3的复合金属结 构采用顶部设置为第四导电金属时，因第四导电金属暴露在上方容易被氧化，使得导电效果减弱或丢失，故应在该复合金属结构的第四导电金属上面还要设置第二防氧化层。其中，考虑到压合出线区CC的第二连接电极3要与外部元器件进行绑定连接且必须具有良好的导电性，因此该第二防氧化层只采用包括但不限于ITO、IGZO、IZO其中之一种形成的导电膜层。
在本发明实施例一中，第一导电金属、第二导电金属、第三导电金属和第四导电金属都为包括但不限于金属银、金属铜、金属铝其中之一种；第一导电金属氧化物、第二导电金属氧化物和第三导电金属氧化物都为包括但不限于ITO、IGZO、IZO其中之一种；无机绝缘材料包括但不限于氧化硅、氮化硅和二氧化硅；所述有机绝缘材料包括但不限于亚克力、聚氨酯和聚硅氧烷。
请参见图2至图7，可以进一步的阐述本发明实施例一中的触控面板所形成触控功能区、金属走线区以及压合出线区各自对应电极的结构，具体如下：
在一个实施例中，如图2所示，触控功能区AA中每条感应电极链上的每一个感应电极4和每条驱动电极链上的每一个驱动电极5都采用金属银Ag制作而成，相邻两个感应电极4之间通过ITO导电膜层实现电导通；
此时，金属走线区BB的第一连接电极2以及压合出线区CC的第二连接电极3还是采用传统单层结构的ITO制作而成。
在另一个实施例中，如图3所示，触控功能区AA中每条感应电极链上的每一个感应电极4和每条驱动电极链上的每一个驱动电极5都采用金属银Ag制作而成，相邻两个感应电极4之间通过ITO导电膜层实现电导通；
此时，金属走线区BB的第一连接电极2采用复合金属结构，采用金属银Ag为第三导电金属来形成底层211，并在第三导电金属Ag的上方采用ITO为第二导电金属氧化物形成的导电膜层作为顶层212；
压合出线区CC的第二连接电极3还是采用传统单层结构的ITO制作而成。
在又一个实施例中，如图4所示，触控功能区AA中每条感应电极链上的每一个感应电极4和每条驱动电极链上的每一个驱动电极5都采用金属银Ag制作而成，相邻两个感应电极4之间通过ITO导电膜层实现电导通；
此时，金属走线区BB的第一连接电极2采用复合金属结构，采用ITO为第二导电金属氧化物形成的导电膜层作为底层221，在ITO形成的底层221上采用金属银Ag为第三导电金属来形成中间层222，并继续在第三导电金属Ag形成的中间层222上采用ITO形成的导电膜层作为顶层223(即第一防氧化层)；当然，也可以采用无机绝缘材料或有机绝缘材料形成的绝缘层作为顶层223；
压合出线区CC的第二连接电极3还是采用传统单层结构的ITO制作而成。
在又一个实施例中，如图5所示，触控功能区AA中每条感应电极链上的每一个感应电极4和每条驱动电极链上的每一个驱动电极5都采用金属银Ag制作而成，相邻两个感应电极4之间通过ITO导电膜层实现电导通；
此时，金属走线区BB的第一连接电极2采用复合金属结构，采用ITO为第二导电金属氧化物形成的导电膜层作为底层221，在ITO形成的底层221上采用金属银Ag为第三导电金属来形成中间层222，并继续在第三导电金属Ag形成的中间层222上采用ITO形成的导电膜层作为顶层223(即第一防氧化层)；当然，也可以采用无机绝缘材料或有机绝缘材料形成的绝缘层作为顶层223；
压合出线区CC的第二连接电极3采用复合金属结构，采用金属银Ag为第四导电金属来形成底层311，并在第三导电金属Ag的上方采用ITO为第三导电金属氧化物形成的导电膜层作为顶层312。
在又一个实施例中，如图6所示，触控功能区AA中每条感应电极链上的每一个感应电极4和每条驱动电极链上的每一个驱动电极5都采用金属银Ag制作而成，相邻两个感应电极4之间通过ITO导电膜层实现电导通；
此时，金属走线区BB的第一连接电极2采用复合金属结构，采用ITO为第二导电金属氧化物形成的导电膜层作为底层221，在ITO形成的底层221上采用金属银Ag为第三导电金属来形成中间层222，并继续在第三导电金属Ag形成的中间层222上采用ITO形成的导电膜层作为顶层223(即第一 防氧化层)；当然，也可以采用无机绝缘材料或有机绝缘材料形成的绝缘层作为顶层223；
压合出线区CC的第二连接电极3采用复合金属结构，采用ITO为第三导电金属氧化物形成的导电膜层作为底层321，在ITO形成的底层321上采用金属银Ag为第四导电金属来形成中间层322，并继续在第三导电金属Ag形成的中间层322上采用ITO形成的导电膜层作为顶层323(即第二防氧化层)。
在又一个实施例中，如图7所示，该图7的技术方案区别于图6的技术方案在于，基于图6的技术方案的基础上，在触控功能区AA上方、金属走线区BB上方及压合出线区CC的第二连接电极3上方的部分区域覆盖有绝缘保护层7。
相应于本发明实施例一提供的触控面板，本发明实施例二还提供了一种触控显示装置，包括本发明实施例一提供的触控面板。由于本发明实施例二中的触控面板与本发明实施例一中的触控面板具有相同的结构及连接关系，具体请参考本发明实施例一中的触控面板的相关内容，因此在此不再一一赘述。
综上所述，实施本发明实施例，具有如下有益效果：
1、与传统的触控面板相比，本发明采用第一导电金属和第二导电金属来替代传统的ITO，分别制作出触控面板中触控功能区的感应电极及驱动电 极，使得触控面板中触控功能区上的电极材料为柔性更好的复合材料(如导电金属+导电金属氧化物)，不仅能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，进一步的提高了制作质量；
2、与传统的触控面板相比，本发明还将触控面板中金属走线区的第一连接电极设置为由第三导电金属和第二导电金属氧化物的复合金属结构来替代传统的ITO，不仅提高了金属走线区上的电极材料的柔性，也能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，更进一步提高了制作质量；
3、与传统的触控面板相比，本发明还将触控面板中压合出线区的第二连接电极设置为由第四导电金属和第三导电金属氧化物的复合金属结构来替代传统的ITO，不仅提高了压合出线区上的电极材料的柔性，也能够确保良好的导电性，还能避免传统单独使用ITO材料所带来的易断裂风险，更进一步提高了制作质量。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (20)

  1. 一种触控面板，其中，包括衬底基板，且所述衬底基板上分别形成有触控功能区、金属走线区以及压合出线区；其中，
    所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
    每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极之间电导通；
    每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电极链中的每一个感应电极之间均绝缘。
  2. 如权利要求1所述的触控面板，其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
  3. 如权利要求2所述的触控面板，其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接 电极；其中，
    所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构。
  4. 如权利要求3所述的触控面板，其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
    复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
  5. 如权利要求4所述的触控面板，其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
    所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
  6. 如权利要求5所述的触控面板，其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
    复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由ITO、IGZO、IZO其中之一种制作而成的导电膜层。
  7. 如权利要求6所述的触控面板，其中，所述无机绝缘材料包括氧化硅、氮化硅和二氧化硅；所述有机绝缘材料包括亚克力、聚氨酯和聚硅氧烷；所述衬底基板由环烯烃共聚物或对苯二甲酸乙二醇酯制作而成。
  8. 如权利要求7所述的触控面板，其中，还包括：用于阻隔空气中水氧侵入的绝缘保护层；其中，所述绝缘保护层覆盖于所述金属走线区及所述触控功能区的上方。
  9. 如权利要求8所述的触控面板，其中，所述绝缘保护层还覆盖于所述压合出线区的第二连接电极上方的部分区域。
  10. 一种触控面板，其中，包括衬底基板，且所述衬底基板上分别形成 有触控功能区、金属走线区以及压合出线区；其中，
    所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
    每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应桥接的两个感应电极之间电导通；
    每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电极链中的每一个感应电极之间均绝缘；
    其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极；其中，
    所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构；
    其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
    所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
  11. 如权利要求10所述的触控面板，其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
  12. 如权利要求11所述的触控面板，其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
    复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
  13. 如权利要求12所述的触控面板，其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
    复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由ITO、IGZO、IZO其中之一种制作而成的导电膜层。
  14. 如权利要求13所述的触控面板，其中，还包括：用于阻隔空气中水氧侵入的绝缘保护层；其中，所述绝缘保护层覆盖于所述金属走线区及所述触控功能区的上方，且所述绝缘保护层还覆盖于所述压合出线区的第二连接电极上方的部分区域。
  15. 一种触控显示装置，其中，包括触控面板；所述触控面板包括衬底基板，且所述衬底基板上分别形成有触控功能区、金属走线区以及压合出线区；其中，
    所述触控功能区包括多条间隔排列分布的感应电极链和多条间隔排列分布的驱动电极链；其中，
    每条所述感应电极链均包括由第一导电金属制作而成的多个感应电极，且相邻的两个感应电极之间均通过至少一个连接桥进行桥接；每条所述感应电极链中的每一个所述连接桥上均开设有位于两端的两个通孔，并通过覆盖其上表面及延伸至所述两个通孔中的第一导电金属氧化物膜层来实现相应 桥接的两个感应电极之间电导通；
    每条所述驱动电极链均包括由第二导电金属制作而成并串接在一起的多个驱动电极；每条所述驱动电极链中的每一个驱动电极与每条所述感应电极链中的每一个感应电极之间均绝缘。
  16. 如权利要求15所述的触控显示装置，其中，所述第一导电金属为金属银、金属铜、金属铝其中之一种；所述第二导电金属包括金属银、金属铜、金属铝其中之一种；所述第一导电金属氧化物膜层为ITO、IGZO、IZO其中之一种形成；所述连接桥采用无机绝缘材料或有机绝缘材料制作而成。
  17. 如权利要求16所述的触控显示装置，其中，所述金属走线区设有与所述触控功能区中每条感应电极链及每条驱动电极链对应相连的多个第一连接电极；其中，
    所述第一连接电极设置为由第二导电金属氧化物形成的单层结构；或由至少包括第二导电金属氧化物和第三导电金属形成的复合金属结构。
  18. 如权利要求17所述的触控显示装置，其中，复合金属结构的第一连接电极包括由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的顶层；或
    复合金属结构的第一连接电极包括由ITO、IGZO、IZO其中之一种作为第二导电金属氧化物制作而成的底层，设置于所述ITO、IGZO、IZO其中之 一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第三导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第一防氧化层；其中，所述第一防氧化层为由无机绝缘材料或有机绝缘材料制作而成的绝缘层，或由至少包括ITO、IGZO、IZO其中之一种制作而成的导电膜层。
  19. 如权利要求18所述的触控显示装置，其中，所述压合出线区上设有通过金属走线与所述金属走线区的每一个第一连接电极分别相连的多个第二连接电极；其中，
    所述第二连接电极设置为由第三导电金属氧化物形成的单层结构；或由至少包括第三导电金属氧化物和第四导电金属形成的复合金属结构。
  20. 如权利要求19所述的触控显示装置，其中，复合金属结构的第二连接电极包括由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的底层及其上由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的顶层；或
    复合金属结构的第二连接电极包括由ITO、IGZO、IZO其中之一种作为第三导电金属氧化物制作而成的底层、设置于所述ITO、IGZO、IZO其中之一种制作而成的底层上的由金属银、金属铜、金属铝其中之一种作为第四导电金属制作而成的中间层以及设置于所述由金属银、金属铜、金属铝其中之一种制作而成的中间层上的第二防氧化层；其中，所述第二防氧化层为由 ITO、IGZO、IZO其中之一种制作而成的导电膜层。
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CN110413155A (zh) * 2019-07-25 2019-11-05 武汉华星光电半导体显示技术有限公司 一种触控电极、触控面板以及显示设备
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