WO2016095609A1 - 触控面板及其制作方法、触控显示装置 - Google Patents

触控面板及其制作方法、触控显示装置 Download PDF

Info

Publication number
WO2016095609A1
WO2016095609A1 PCT/CN2015/092670 CN2015092670W WO2016095609A1 WO 2016095609 A1 WO2016095609 A1 WO 2016095609A1 CN 2015092670 W CN2015092670 W CN 2015092670W WO 2016095609 A1 WO2016095609 A1 WO 2016095609A1
Authority
WO
WIPO (PCT)
Prior art keywords
transparent conductive
electrode
conductive layer
layer
electrodes
Prior art date
Application number
PCT/CN2015/092670
Other languages
English (en)
French (fr)
Inventor
徐传祥
齐永莲
Original Assignee
京东方科技集团股份有限公司
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 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP15868659.2A priority Critical patent/EP3070583A4/en
Priority to US15/106,212 priority patent/US10203784B2/en
Publication of WO2016095609A1 publication Critical patent/WO2016095609A1/zh

Links

Images

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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—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 screen technologies, and in particular, to a touch panel, a manufacturing method thereof, and a touch display device.
  • touch screen As an intelligent human-computer interaction interface product, touch screen has been widely used in many fields of social production and life, especially in the field of consumer electronics, such as smart phones and tablets. rapid.
  • Capacitive touch screen is a new generation of touch screen products after resistive touch screen. Its performance is better than that of the previous generation. It not only shows more sensitive response, supports multi-touch, but also has a longer life.
  • FIGS. 1(a)-(b) are schematic cross-sectional views showing a planar structure of a touch panel in the prior art
  • FIG. 2 is a cross-sectional view showing a touch panel in the prior art.
  • the touch panel includes a first transparent conductive layer 101 , a transparent insulating dielectric layer 102 , a second transparent conductive layer 103 , and a metal film layer 104 which are sequentially disposed on a glass substrate.
  • the first transparent conductive layer 101 serves as a bridge for connecting two adjacent first electrodes 1031
  • the second transparent conductive layer 103 includes a plurality of first electrodes 1031 and a plurality of second electrodes that are cross-distributed. 1032, and a connecting line 1033 connecting two adjacent first electrodes 1031
  • the metal film layer 104 includes a metal lead 1041 of the first electrode and a metal lead 1042 of the second electrode, respectively located at the plurality of first electrodes 1031 and One side of the second electrode 1032, the metal lead is ultimately connected to a flexible circuit board (FPC).
  • FPC flexible circuit board
  • the metal lead is extremely oxidizable, in the prior art, aluminum ruthenium is used as a metal lead in the prior art for the purpose of low cost and low resistivity; in addition, in order to reduce the risk of oxidation, the metal lead is up and down.
  • the surface is provided with a protective layer structure, such as a metal lead provided with a protective layer, generally adopting a laminated structure of molybdenum/aluminum tantalum/molybdenum. In order to further prevent oxidation of the product during manufacturing/preservation and subsequent use, the resistance is increased.
  • the manufacturer adopts a laminated structure of molybdenum tantalum/aluminum tantalum/molybdenum tantalum, which is expensive and engraved.
  • the slow rate of etching leads to problems such as difficulty in etching metal leads of the laminated structure, and development of new targets (ie, molybdenum crucibles).
  • the separate protective layer structure on the upper and lower sides of the metal leads adds additional processing.
  • embodiments of the present invention provide a touch panel, a method of fabricating the same, and a touch display device.
  • a touch panel including:
  • a plurality of first electrodes the plurality of first electrodes being connected to each other by a first connecting line in a first direction;
  • the touch panel further includes:
  • At least one transparent conductive layer formed on at least one surface of each of the first electrode lead and/or the second electrode lead, and connected to the first electrode, the second electrode, and the first electrode At least one of the wire and the second connecting wire is formed in the same layer.
  • the at least one transparent conductive layer includes a first transparent conductive layer formed on an upper surface of each of the first electrode lead and/or the second electrode lead.
  • the first transparent conductive layer is also formed on each of the first electrode lead and the second electrode lead At least one side surface.
  • the at least one transparent conductive layer further includes a second transparent conductive layer formed on a lower surface of each of the first electrode lead and/or the second electrode lead, and the first transparent conductive layer is in contact with each other to form a separate package A closed space covering each of the first electrode lead and/or the second electrode lead.
  • the plurality of first connecting lines are respectively connected between the plurality of first electrodes, and the plurality of second connecting lines are respectively connected between the plurality of second electrodes.
  • An insulating layer is formed between the first connection line and the second connection line.
  • the first transparent conductive layer is formed in the same layer as the first electrode, the second electrode, and the first connection line; and the second transparent conductive layer is formed in the same layer as the second connection line.
  • the first transparent conductive layer is formed in the same layer as the second connection line; the second transparent conductive layer is formed in the same layer as the first electrode, the second electrode and the first connection line.
  • the first transparent conductive layer is formed in the same layer as the first electrode and the first connection line; and the second transparent conductive layer is formed in the same layer as the second electrode and the second connection line.
  • the at least one transparent conductive layer is made of the same material as the first electrode, the second electrode, the first connecting line, and the second connecting line.
  • the at least one transparent conductive layer and the first electrode, the second electrode, the first connecting line, and the second connecting line are made of a transparent metal oxide.
  • the metal oxide includes indium tin oxide or zinc oxide.
  • the touch panel further includes a light shielding layer located in a frame area around the touch area.
  • the first electrode lead and the second electrode lead are located above the light shielding layer.
  • a method of fabricating a touch panel includes: forming a plurality of first electrodes, a plurality of second electrodes, a plurality of first electrode leads, and a plurality of second electrode leads;
  • the plurality of first electrodes are connected to each other in a first direction by a first connection line, and the plurality of second electrodes are connected to each other by a second connection line in a second direction;
  • the plurality of first electrode leads are used for The first electrodes connected to each other in the first direction are taken out from the touch area, and the plurality of second electrode leads are used to lead the second electrodes connected to each other in the second direction from the touch area;
  • the method further includes:
  • At least one transparent conductive layer in the same layer as at least one of the first electrode, the second electrode, the first connection line or the second connection line, the at least one transparent conductive layer being formed on each of the first electrode leads And/or the surface of the second electrode lead.
  • the at least one transparent conductive layer includes a first transparent conductive layer formed on an upper surface and a side surface of each of the first electrode lead and the second electrode lead.
  • the at least one transparent conductive layer further includes a second transparent conductive layer formed on a lower surface of each of the first electrode lead and the second electrode lead, and the first transparent conductive layer Contacting each other forms a closed space that covers each of the first electrode lead and the second electrode lead, respectively.
  • the above method specifically includes:
  • first transparent conductive material layer Forming a first transparent conductive material layer, and patterning the same to form a pattern including a plurality of first electrodes, a first connection line, a plurality of second electrodes, and a second transparent conductive layer; the second transparent conductive layer is formed in the Corresponding positions of the plurality of first electrode leads and the second electrode leads;
  • the first transparent conductive layer being formed on the plurality of first electrode leads and second electrode leads An upper surface and a side surface; wherein the first transparent conductive layer and the second transparent conductive layer are in contact to form a closed space covering each of the first electrode lead and the second electrode lead; the insulating layer pattern includes at least A pattern corresponding to the intersection area of the first connection line and the second connection line.
  • the above method specifically includes:
  • first transparent conductive material layer Forming a first transparent conductive material layer, and patterning the same to form a pattern including a second connection line and a second transparent conductive layer; the second transparent conductive layer being formed on the plurality of first electrode leads and second electrode leads Corresponding position
  • the above method specifically includes:
  • Forming a first transparent conductive material layer performing a patterning process thereof to form a pattern including a plurality of first electrodes, a first connection line, and a second transparent conductive layer; the second transparent conductive layer being formed on the plurality of first electrodes a corresponding position of the lead and the second electrode lead;
  • Forming a second transparent conductive material layer performing a patterning process thereof to form a pattern including a plurality of second electrodes, a second connection line, and a first transparent conductive layer; the first transparent conductive layer being formed on the plurality of first electrodes An upper surface and a side surface of the lead and the second electrode lead; wherein the first transparent conductive layer and the second transparent conductive layer are in contact to form a closed space covering each of the first electrode lead and the second electrode lead;
  • the insulating layer pattern includes at least a pattern corresponding to the plurality of first electrode regions.
  • a touch display device comprising the touch panel as described above.
  • the above solution proposed by the present invention covers the first electrode lead and the second electrode lead by using the second transparent conductive layer and the first transparent conductive layer, thereby preventing the first electrode lead and the second electrode lead from being oxidized, thereby saving
  • a process of separately forming a protective layer over the electrode leads is required.
  • the first electrode lead and the second electrode lead are completely covered by the second transparent conductive layer and the first transparent conductive layer
  • the coating without the exposed area, prevents the first electrode lead and the second electrode lead material from being oxidized, and can increase the adhesion.
  • the second transparent conductive layer and the first transparent conductive layer are respectively formed in the same layer as the first electrode, the second electrode, the first connecting line, and the second connecting line, when the touch panel is prepared, No additional manufacturing process is added, and the number of processes is reduced and the preparation efficiency is improved as compared with the prior art.
  • FIG. 2 is a schematic cross-sectional view of a touch panel in the prior art
  • 3(a) to 3(c) are schematic cross sectional views of a touch panel in a first embodiment of the present invention
  • FIG. 4 is a plan exploded view of the touch panel in the first embodiment of the present invention.
  • FIG. 5 is a flow chart of a method for fabricating a touch panel according to a first embodiment of the present invention
  • FIG. 6 is a flow chart of a method for fabricating a touch panel according to a second embodiment of the present invention.
  • FIG. 7 is a flow chart of a method for fabricating a touch panel according to a third embodiment of the present invention.
  • the invention provides a touch panel comprising:
  • a plurality of first electrodes the plurality of first electrodes being connected to each other by a first connecting line in a first direction;
  • the touch panel further includes:
  • At least one transparent conductive layer formed on at least one surface of each of the first electrode lead and/or the second electrode lead, and connected to the first electrode, the second electrode, and the first electrode At least one of the wire and the second connecting wire is formed in the same layer.
  • At least one surface of the first electrode lead and/or the second electrode lead herein includes at least one upper and lower surface of the electrode lead, or at least one side surface of the front, rear, left, and right.
  • the at least one transparent conductive layer includes a first transparent conductive layer formed on an upper surface of each of the first electrode lead and/or the second electrode lead.
  • first transparent conductive layer is further formed on a side surface of each of the first electrode lead and/or the second electrode lead.
  • the at least one transparent conductive layer further includes a second transparent conductive layer formed on a lower surface of each of the first electrode leads and/or the second electrode leads, in contact with the first transparent conductive layer A closed space is formed that respectively coats each of the first electrode lead and/or the second electrode lead.
  • the first electrode and the second electrode are respectively one of a transmitting electrode and a receiving electrode.
  • FIG. 3(a) to 3(c) are diagrams showing a planar exploded structure of the touch panel proposed in the first embodiment of the present invention
  • FIG. 4 is a view showing a touch panel according to the first embodiment of the present invention.
  • Cross-sectional schematic view As shown in Figures 3(a) to (c) and 4, it includes:
  • first electrodes 301 a plurality of first electrodes 301, a plurality of second electrodes 302, a first connection line 303, and a first transparent conductive layer 3071 formed by the same layer; wherein the plurality of first electrodes 301 pass the first connection in the first direction
  • the wires 303 are connected to each other; the plurality of second electrodes 302 are connected to each other by the second connecting line 304 in the second direction; see FIG. 3(c) and FIG. 4; optionally, the first connecting line 303 and The plurality of second connecting lines 304 are connected between the plurality of first electrodes 301 and the second electrodes 302, respectively.
  • the touch panel further includes a light shielding layer (not shown), which is formed in a frame area around the touch area for preventing light leakage in the frame area.
  • the plurality of first electrode leads 305 and second electrode leads 306 are formed over the light shielding layer.
  • the first electrode lead 305 and the second electrode lead 306 may be formed on the same side or different sides of the light shielding layer.
  • the first transparent conductive layer 3071 is formed on an upper surface and a side surface of each of the first electrode lead 305 and the second electrode lead 306, and the second transparent conductive layer 3072 is formed on each of the first The lower surface of the electrode lead 305 and the second electrode lead 306, the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are in contact at the edges of the first electrode lead and the second electrode lead to form a closed space for Each of the first electrode lead 305 and the second electrode lead 306 is completely covered, see FIG.
  • the first electrode lead 305 and the second electrode 306 are lead-covered by the first transparent conductive layer 3071 and the second transparent conductive layer 3072, which can prevent the first electrode lead 305 and the second electrode lead 306 from being Oxidation saves a process of separately forming a protective layer over the electrode lead for preventing oxidation and increasing adhesion, and since the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are capable of conducting electricity, the first electrode is not affected
  • the lead 305 and the second electrode lead 306 are electrically connected to an external circuit.
  • the first electrode lead 305 and the second electrode lead 306 are completely enclosed by the first transparent conductive layer and the second transparent conductive layer without an exposed area, the first electrode lead and the second electrode lead material can be prevented from being oxidized, and Increase adhesion.
  • the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are respectively formed in the same layer as at least one of the first electrode, the second electrode, the first connection line, and the second connection line, the touch panel is prepared. At the time, the production process was not increased.
  • the second transparent conductive layer below can be omitted on the basis of the above structure, and only the first transparent conductive layer on the upper surface and the side surface of the electrode lead is left to be completely covered.
  • the upper surface and the side surface of the electrode lead can form a closed space with the substrate The same effect.
  • the first transparent conductive layer may cover only the upper surface of the electrode lead, and also functions to prevent oxidation and increase adhesion.
  • the transparent conductive layer may be formed only on side surfaces of the first electrode lead and the second electrode lead to prevent the electrode lead side surface from being oxidized.
  • the plurality of first electrodes 301 and the second electrodes 302 are cross-distributed.
  • the first electrodes 301 are connected to each other through the first connection line 303
  • the second electrodes The 302 is connected to each other by a second connection line 304.
  • An insulating layer 308 is disposed between the first connection line 303 and the second connection line 304.
  • the first connection line 303 connecting the first electrode 301 is formed in the same layer as the first electrode 301 and the second electrode 302, and the second connection line 304 connecting the second electrode 302 is formed with different layers thereof, and passes through The second electrode 302 is connected in the manner of an upper bridge or a lower bridge.
  • the upper bridge refers to forming an insulating layer 308 at the position of the second connecting line 304 after forming the first electrode 301, the second electrode 302 and the first connecting line 303, and then forming a layer on the insulating layer 308.
  • Two connection lines 304, and two ends of the second connection line 304 are electrically connected to two adjacent second electrodes 302; the lower bridge means that a second connection line 304 is formed at a corresponding position, in the second After the insulating layer is formed on the connecting line 304, the first electrode 301, the second electrode 302 and the first connecting line 303 are formed, wherein the two ends of the second connecting line 304 are electrically connected to the two adjacent second electrodes 302. .
  • the purpose of the insulating layer is to insulate each other at a position where the first connection line 303 and the second connection line 304 intersect. 3(a) to (c) and 4 show the lower bridge structure.
  • the first transparent conductive layer 3071 is also formed in the same layer as the first electrode 301, the second electrode 302, and the first connection line 303, and is formed on each of the first electrode leads 305 and each of the second electrode leads 306. Upper surface and side surface, or below.
  • the second transparent conductive layer 3072 is formed in the same layer as the second connection line 304, and is formed under each of the first electrode leads 305 and each of the second electrode leads 306, or an upper surface and a side surface. That is, the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are respectively formed on the upper, lower and side surfaces of the first electrode lead 305 and the second electrode lead 306, and the first electrode is entirely The lead 305 and the second electrode lead 306 are covered.
  • a conductive layer is formed on a lower surface of the first electrode lead 305 and the second electrode lead 306, and an area is equal to or slightly larger than an area of the first electrode lead 305 and the second electrode lead 306, and the conductive layer located above is formed not only On the upper surfaces of the first electrode lead 305 and the second electrode lead 306, also formed on the side surface thereof to be in contact with the underlying conductive layer at the edges of the first electrode lead 305 and the second electrode lead 306 Form a confined space.
  • the first transparent conductive layer 3071 is located on a lower surface of the first electrode lead 305 and the second electrode lead 306, and the second transparent conductive layer 3072 is located at the first electrode lead 305 and the second electrode lead The upper surface and the side surface of the 306 are disposed in contact with the first transparent conductive layer at the peripheral edges of the first electrode lead 305 and the second electrode lead 306.
  • the second transparent conductive layer 3072 is located on the lower surface of the first electrode lead 305 and the second electrode lead 306, and the first transparent conductive layer 3071 is located at the first electrode lead 305 and the second electrode lead The upper surface and the side surface of the 306 are disposed in contact with the second transparent conductive layer at the peripheral edges of the first electrode lead 305 and the second electrode lead 306.
  • the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are made of the same material as the first electrode 301, the second electrode 302, the first connecting line 303, and the second connecting line 304.
  • the first transparent conductive layer 3071 and the second transparent conductive layer 3072 need to be made of a transparent conductive material, such as a transparent metal oxide, and the transparent metal oxide includes indium tin oxide ITO, zinc oxide IZO, and the like.
  • the first electrode 301, the second electrode 302, the first connection line 303, and the second connection line 304 may also be made of a transparent conductive material, such as a transparent metal oxide or the like.
  • the present invention is not limited to the above manner, and the first electrode 301 and the first connecting line 303 may be formed in the same layer, and the second electrode 302 and the second connecting line 304 are formed in the same layer, and in the first connecting line.
  • An intersection of the 303 and the second connecting line 304 forms an insulating layer.
  • the first transparent conductive layer 3071 is formed in the same layer as the first electrode 301 and the first connection line 303
  • the second transparent conductive layer 3072 is formed in the same layer as the second electrode 302 and the second connection line 304.
  • the first transparent conductive layer 3071 and the second transparent conductive layer 3072 are made of a transparent conductive material, and other arrangements are the same as those described in the first embodiment.
  • the key of the present invention is that the exposed surface of the electrode lead is covered with a transparent conductive material, and the transparent conductive layer is the same as at least one of the first electrode, the second electrode, the first connection or the second connection line.
  • the layer is formed so as not to increase the manufacturing process of the touch panel, and to prevent oxidation of the electrode leads. Any modifications made to the solution of the present invention based on this idea are all within the scope of the present invention.
  • the present invention also provides a method of fabricating a touch panel, including forming a plurality of first electrodes, a plurality of second electrodes, a plurality of first electrode leads, and a plurality of second electrode leads; Connected to each other by a first connecting line in a first direction, the plurality of second electrodes being connected to each other by a second connecting line in a second direction; the plurality of first electrode leads for connecting to each other in a first direction The first electrode is led out from the touch area, and the plurality of second electrode leads are used to lead the second electrodes connected to each other in the second direction from the touch area;
  • the method further includes forming a first transparent conductive layer in the same layer as at least one of the first electrode, the second electrode, the first connection line or the second connection line, wherein the first transparent conductive layer is covered Each of the first electrode lead and the second electrode lead surface.
  • the method further includes: forming a second transparent conductive layer in the same layer as the at least one of the first electrode, the second electrode, the first connection line or the second connection line, the second transparent conductive layer Formed under each of the first electrode lead and the second electrode lead, and in contact with the first transparent conductive layer to form a closed space covering each of the first electrode lead and the second electrode lead, respectively.
  • FIG. 5 is a flow chart showing a method for fabricating a touch panel according to a first embodiment of the present invention.
  • the specific process flow can be seen in Figures 3(a)-(c).
  • the manner in which the second electrode is connected to the bridge is taken as an example to illustrate the specific manufacturing process and steps of the present invention. As shown in Figure 5, it includes:
  • Step 501 Form a first transparent conductive material layer, and perform a patterning process to form a pattern including a plurality of second connection lines 304 and a plurality of second transparent conductive layers 3072; the plurality of second connection lines 304 are respectively formed corresponding to Connecting the positions of the two adjacent second electrodes 302; the plurality of second transparent conductive layers 3072 are respectively formed at positions of each of the first electrode leads 305 and the second electrode leads 306, that is, at the first electrodes 301 and a first side and a second side of the array structure formed by the two electrodes 302, wherein the first side and the second side are respectively located on adjacent sides of the touch area, and the first direction and the second direction Vertical direction
  • Step 502 forming an insulating layer, and performing a patterning process to form an insulating layer pattern; when patterning the insulating layer, only the insulating layer at the intersection of the first connecting line 303 and the second connecting line 304 may be left. That is, the insulating layer pattern includes at least a pattern corresponding to an intersection area of the first connection line 303 and the second connection line 304;
  • Step 503 forming a layer of lead material, patterning the same to form a pattern including the first electrode lead 305 and the second electrode lead 306; wherein the first electrode lead 305 and the second electrode lead 306 are formed on the second transparent conductive Above the layer 3072, the first electrode lead 305 is used to lead the first electrode 301 connected to each other in the first direction from the touch area, and the second electrode lead 306 is used to connect the second direction to each other.
  • the two electrodes 302 are taken out from the touch area;
  • Step 504 forming a second transparent conductive material layer, and performing a patterning process thereof to form a pattern including a plurality of first electrodes 301, a plurality of second electrodes 302, a first connection line 303, and a first transparent conductive layer 3071;
  • the plurality of first electrodes 301 are connected to each other through the first connection line 303 in a first direction, and the plurality of first electrodes and the plurality of second electrodes 302 are cross-distributed; the second electrode 302 and the second electrode
  • the second connection line 304 is electrically connected;
  • the first transparent conductive layer 3071 is formed on the upper surface and the side surface of the first electrode lead 305 and the second electrode lead 306, and is in contact with the lower second transparent conductive layer 3072 to form a separate A closed space covering each of the first electrode lead 305 and the second electrode lead 306 is covered.
  • FIG. 6 is a flow chart showing a method for fabricating a touch panel according to a second embodiment of the present invention.
  • the manner in which the second electrode is bridged and connected is taken as an example to illustrate the specific manufacturing process and steps of the present invention.
  • the method specifically includes:
  • Step 601 forming a first transparent conductive material layer, and performing a patterning process thereof to form a pattern including a plurality of first electrodes 301, a plurality of second electrodes 302, a first connection line 303, and a second transparent conductive layer 3072;
  • the plurality of first electrodes 301 are connected to each other through the first connection line 303 in a first direction, the plurality of first electrodes and the plurality of second electrodes 302 are cross-distributed;
  • the second transparent conductive layer 3072 is formed correspondingly At the position of each of the first electrode lead 305 and the second electrode lead 306, that is, at the a first side and a second side of the array structure formed by the first electrode 301 and the second electrode 302, wherein the first side and the second side are respectively located on adjacent sides of the touch area, and the first side The direction is perpendicular to the second direction;
  • Step 602 forming an insulating layer, and performing a patterning process to form an insulating layer pattern; when patterning the insulating layer, only the insulating layer at the intersection of the first connecting line 303 and the second connecting line 304 may be left. That is, the insulating layer pattern includes at least a pattern corresponding to an intersection area of the first connection line 303 and the second connection line 304;
  • Step 603 forming a layer of lead material, patterning the same to form a pattern including the first electrode lead 305 and the second electrode lead 306; wherein the first electrode lead 305 and the second electrode lead 306 are formed on the second transparent conductive Above the layer 3072, the first electrode lead 305 is used to lead the first electrode 301 connected to each other in the first direction, and the second electrode lead 306 is used to lead the second electrode 302 connected to each other in the second direction. ;
  • Step 604 forming a second transparent conductive material layer, forming a second connecting line 304 and a first transparent conductive layer 3071, wherein the second connecting line 304 is used to connect two adjacent ends in the second connecting direction.
  • a pattern of the second electrode 302; the first transparent conductive layer 3071 is formed on the upper surface and the side surface of the first electrode lead 305 and the second electrode lead 306, and is in contact with the lower second transparent conductive layer 3072.
  • the closed space of each of the first electrode lead 305 and the second electrode lead 306 is separately covered.
  • the flow of the production method of the present invention is not limited to the above method steps.
  • FIG. 7 is a flow chart showing a method of fabricating a touch panel in a third embodiment of the present invention. As shown in FIG. 7, the method includes:
  • Step 701 forming a first transparent conductive material layer, and performing a patterning process thereof to form a pattern including a plurality of first electrodes 301, a first connection line 303, and a second transparent conductive layer 3072; wherein the plurality of first electrodes 301 Connected to each other through the first connection line 303 in a first direction; the second transparent conductive layer 3072 is correspondingly formed at a position of each of the first electrode lead 305 and the second electrode lead 306, that is, at the first electrode 301 and The first side and the second side of the array structure formed by the second electrode 302, The first side and the second side are respectively located on adjacent sides of the touch area, and are perpendicular to the first direction and the second direction;
  • Step 702 forming an insulating layer, and performing a patterning process to form an insulating layer pattern; when patterning the insulating layer, it is necessary to retain the insulating layers of the plurality of first electrodes 301 and the first connecting lines 303 to prevent subsequent
  • the first electrode 301 and the second electrode 302 are electrically conductive
  • the first connection line 303 and the second connection line 304 are electrically conductive; that is, the The insulating layer pattern includes at least a pattern corresponding to a plurality of first electrode 301 regions, a first connecting line 303, and a second connecting line 304 crossing region;
  • Step 703 forming a layer of lead material, patterning the same to form a pattern including the first electrode lead 305 and the second electrode lead 306; wherein the first electrode lead 305 and the second electrode lead 306 are formed on the second transparent conductive Above the layer 3071, the first electrode lead 305 is used to lead the first electrode 301 connected to each other in the first direction, and the second electrode lead 306 is used to lead the second electrode 302 connected to each other in the second direction. ;
  • Step 704 forming a second transparent conductive material layer, and patterning the same to form a pattern including the second electrode 302, the second connection line 304, and the first transparent conductive layer 3071; the second electrode 302 and the first electrode 301 are cross-distributed and connected to each other by the second connection line 304 in a second direction; the first transparent conductive layer 3071 is formed on upper and side surfaces of the first electrode lead 305 and the second electrode lead 306 And contacting the underlying first transparent conductive layer 3071 to form a closed space that individually covers each of the first electrode lead 305 and the second electrode lead 306.
  • the method before forming the layer of the lead material, the method further includes forming a light shielding layer on the frame region around the touch region, and the first electrode lead and the second electrode lead are formed on the light shielding layer.
  • the second connecting line between the second electrodes is in the form of a lower bridge
  • FIG. 6 is in the form of an upper bridge
  • the electrode and the second electrode are layered. What they have in common is that when forming the first electrode, the second electrode, the first connecting line and the second connecting line, at least two layers are formed, and the present invention is a step of forming by using two layers.
  • the second transparent conductive layer and the first transparent conductive layer are respectively formed at the same time as each layer is formed, so that the second transparent conductive layer and the first transparent conductive layer cover the first electrode lead and the second electrode lead, so that not only the The first electrode lead and the second electrode lead oxidize and increase their adhesion, and also reduce a process of separately forming a protective layer over the electrode lead to prevent oxidation and increase adhesion. Therefore, the above method proposed by the present invention can save the process and reduce the cost.

Abstract

本发明公开了一种触控面板，包括：多个第一电极，所述多个第一电极在第一方向上通过第一连接线彼此连接；多个第二电极，所述多个第二电极在第二方向上通过第二连接线彼此连接；多个第一电极引线，用于将第一方向上彼此连接的第一电极从触控区域引出；多个第二电极引线，用于将第二方向上彼此连接的第二电极从触控区域引出；所述触控面板还包括：至少一个透明导电层，所述至少一个透明导电层覆盖在每个所述第一电极引线和/或第二电极引线的至少一个表面，且与所述第一电极、第二电极、第一连接线和第二连接线中的至少之一同层形成。本发明能够在不增加制作工序的情况下，防止电极引线被氧化和增加粘附力。

Description

触控面板及其制作方法、触控显示装置
相关申请的交叉引用
本申请要求于2014年12月15日递交中国专利局的、申请号为201410776006.8的中国专利申请的权益，该申请的全部公开内容以引用方式并入本文。
技术领域
本发明涉及触摸屏技术领域，尤其涉及一种触控面板及其制作方法、触控显示装置。
背景技术
触摸屏作为一种智能化的人机交互界面产品，已经在社会生产和生活中的很多领域得到了越来越广泛的应用，尤其在消费电子产品领域，如智能手机、平板电脑等领域中发展最为迅速。
电容式触摸屏是继电阻式触摸屏之后的新一代触摸屏产品，其在性能上比上一代的产品有了质的飞跃，不仅表现在反应更灵敏，支持多点触控，而且表现在寿命更长。
图1(a)～(b)示出了现有技术中的触控面板的平面结构解剖示意图，图2示出了现有技术中的触控面板的横截面示意图。如图1(a)～(b)、2所示，触控面板包括在玻璃基板上依次设置的第一透明导电层101、透明绝缘介质层102、第二透明导电层103、金属膜层104，其中，所述第一透明导电层101作为搭桥，用于连接两相邻的第一电极1031，所述第二透明导电层103包括交叉分布的多个第一电极1031和多个第二电极1032、以及连接两个相邻第一电极1031的连接线1033，所述金属膜层104包括第一电极的金属引线1041和第二电极的金属引线1042，分别位于多个第一电极1031和多个第二电极1032的一侧，所述金属引线最终连接到柔性电路板(FPC)。
由于所述金属引线极易氧化，因此在现有技术中，出于低成本以及低电阻率的考虑，现有技术中采用铝钕作为金属引线；此外为了降低被氧化的风险，在金属引线上下表面设置保护层结构，如设置保护层的金属引线一般采用钼/铝钕/钼的叠层结构。为进一步防止产品在制造/保存及以后的使用过程中发生氧化导致电阻升高，在一些高端产品中，厂商采用钼铌/铝钕/钼铌的叠层结构，这些层叠结构存在价格昂贵，刻蚀速率慢，导致叠层结构的金属引线难以刻蚀等问题，而且还需要开发新的靶材(即钼铌)。同时，在金属引线上下侧单独制作的保护层结构会增加额外的工艺。
发明内容
为解决现有技术中的以上和其它方面，，本发明的实施例提出了一种触控面板及其制作方法、触控显示装置。
根据本发明一方面，其提供了一种触控面板，包括：
多个第一电极，所述多个第一电极在第一方向上通过第一连接线彼此连接；
多个第二电极，所述多个第二电极在第二方向上通过第二连接线彼此连接；
多个第一电极引线，用于将第一方向上彼此连接的第一电极从触控区域引出；
多个第二电极引线，用于将第二方向上彼此连接的第二电极从触控区域引出；
其特征在于，所述触控面板还包括：
至少一个透明导电层，所述至少一个透明导电层形成在每个所述第一电极引线和/或第二电极引线的至少一个表面，且与所述第一电极、第二电极、第一连接线和第二连接线中的至少之一同层形成。
所述至少一个透明导电层包括第一透明导电层，其形成于每个所述第一电极引线和/或第二电极引线的上表面。
所述第一透明导电层还形成在每个所述第一电极引线和第二电极引线的 至少一个侧表面。
所述至少一个透明导电层还包括第二透明导电层，其形成在每个所述第一电极引线和/或第二电极引线的下表面，与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和/或第二电极引线的闭合空间。
所述第一连接线为多条，分别连接在多个第一电极之间，所述第二连接线为多条，分别连接在多个第二电极之间。
所述第一连接线和第二连接线之间形成有绝缘层。
所述第一透明导电层与所述第一电极、第二电极和第一连接线同层形成；所述第二透明导电层与所述第二连接线同层形成。
所述第一透明导电层与所述第二连接线同层形成；所述第二透明导电层与所述第一电极、第二电极和第一连接线同层形成。
所述第一透明导电层与所述第一电极、第一连接线同层形成；所述第二透明导电层与所述第二电极和第二连接线同层形成。
所述至少一个透明导电层与第一电极、第二电极、第一连接线、第二连接线采用同样的材料制成。
所述至少一个透明导电层与第一电极、第二电极、第一连接线、第二连接线采用透明的金属氧化物制成。
所述金属氧化物包括氧化铟锡或氧化锌。
所述触控面板还包括遮光层，其位于触控区域四周的边框区域。
所述第一电极引线和第二电极引线位于所述遮光层之上。
根据本发明第二方面，其还提供了一种触控面板的制作方法，其包括：形成多个第一电极、多个第二电极、多个第一电极引线和多个第二电极引线；所述多个第一电极在第一方向上通过第一连接线彼此连接，所述多个第二电极在第二方向上通过第二连接线彼此连接；所述多个第一电极引线用于将第一方向上彼此连接的第一电极从触控区域引出，所述多个第二电极引线用于将第二方向上彼此连接的第二电极从触控区域引出；
所述方法还包括：
与所述第一电极、第二电极、第一连接线或第二连接线中的至少之一同层形成至少一个透明导电层，所述至少一个透明导电层形成于每个所述第一电极引线和/或第二电极引线的表面。
所述至少一个透明导电层包括第一透明导电层，所述第一透明导电层形成于每个所述第一电极引线和第二电极引线的上表面和侧表面。
所述至少一个透明导电层还包括第二透明导电层，所述第二透明导电层形成于每个所述第一电极引线和第二电极引线的下表面，且与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和第二电极引线的闭合空间。
上述方法具体包括：
形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线、多个第二电极和第二透明导电层的图形；所述第二透明导电层形成在所述多个第一电极引线和第二电极引线的对应位置处；
形成绝缘材料层，并对其进行构图工艺形成绝缘层图形；
形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
形成第二透明导电材料层，对其进行构图工艺形成包括第二连接线和第一透明导电层的图形；所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于第一连接线和第二连接线交叉区域的图形。
上述方法具体包括：
形成第一透明导电材料层，对其进行构图工艺形成包括第二连接线和第二透明导电层的图形；所述第二透明导电层形成于所述多个第一电极引线和第二电极引线的对应位置；
形成绝缘层，并对其进行构图工艺形成绝缘层图形；
形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
形成第二透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线、多个第二电极和第一透明导电层的图形，所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于第一连接线和第二连接线交叉区域的图形。
上述方法具体包括：
形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线和第二透明导电层的图形；所述第二透明导电层形成在所述多个第一电极引线和第二电极引线的对应位置处；
形成绝缘层，并对其进行构图工艺形成绝缘层图形；
形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
形成第二透明导电材料层，对其进行构图工艺形成包括多个第二电极、第二连接线和第一透明导电层的图形；所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于多个第一电极区域的图形。
根据本发明第三方面，其还提供了一种触控显示装置，其包括如上述所述的触控面板。
本发明提出的上述方案利用第二透明导电层和第一透明导电层将第一电极引线和第二电极引线包覆住，可以防止所述第一电极引线和第二电极引线被氧化，节省了为防止氧化而需要在电极引线上方单独制作保护层的工序。此外，由于第一电极引线和第二电极引线被第二透明导电层和第一透明导电层完全 包覆，没有露出区域，可以防止第一电极引线和第二电极引线材料被氧化，且能够增加粘附力。同时，由于第二透明导电层和第一透明导电层分别与第一电极、第二电极、第一连接线、和第二连接线的至少一个同层形成，在制备上述触控面板时，并未增加额外制作工序，与现有技术相比减少了工艺次数，提高了制备效率。
附图说明
图1(a)～(b)是现有技术中触控面板的平面分解示意图；
图2是现有技术中触控面板的横截面示意图；
图3(a)～(c)是本发明第一实施例中触控面板的横截面示意图；
图4是本发明第一实施例中触控面板的平面分解示意图；
图5是本发明第一实施例中触控面板的制作方法流程图；
图6是本发明第二实施例中触控面板的制作方法流程图；
图7是本发明第三实施例中触控面板的制作方法流程图。
具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本发明实施方式的说明旨在对本发明的总体发明构思进行解释，而不应当理解为对本发明的一种限制。
本发明提出了一种触控面板，包括：
多个第一电极，所述多个第一电极在第一方向上通过第一连接线彼此连接；
多个第二电极，所述多个第二电极在第二方向上通过第二连接线彼此连接；
多个第一电极引线，用于将第一方向上彼此连接的第一电极从触控区域引出；
多个第二电极引线，用于将第二方向上彼此连接的第二电极从触控区域引 出；
其中，所述触控面板还包括：
至少一个透明导电层，所述至少一个透明导电层形成在每个所述第一电极引线和/或第二电极引线的至少一个表面，且与所述第一电极、第二电极、第一连接线和第二连接线中的至少之一同层形成。
此处的所述第一电极引线和/或第二电极引线的至少一个表面包括电极引线的上、下至少一个表面，或前后左右至少一个侧表面。
进一步地，所述至少一个透明导电层包括第一透明导电层，其形成于每个所述第一电极引线和/或第二电极引线的上表面。
进一步地，所述第一透明导电层还形成在每个所述第一电极引线和/或第二电极引线的侧表面。
进一步地，所述至少一个透明导电层还包括第二透明导电层，其形成在每个所述第一电极引线和/或第二电极引线的下表面，与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和/或第二电极引线的闭合空间。
所述第一电极和第二电极分别为发射电极和接收电极之一。
下面根据具体实施例详细说明本发明提出的触控面板的结构。
图3(a)～(c)示出了本发明中第一实施例中提出的触控面板的平面分解结构示意图；图4示出了本发明第一实施例中提出的一种触控面板的横截面示意图。如图3(a)～(c)、4所示，其包括：
同层形成的第二连接线304和第二透明导电层3072；具体参见图3(a)；
多个第一电极引线305，用于将第一方向上彼此连接的第一电极301从触控区域引出；具体参见图3(b)；
多个第二电极引线306，用于将第二方向上彼此连接的第二电极302从触控区域引出；具体参见图3(b)；
多个同层形成的第一电极301、多个第二电极302、第一连接线303和第一透明导电层3071；其中，所述多个第一电极301在第一方向上通过第一连接 线303彼此连接；所述多个第二电极302在第二方向上通过第二连接线304彼此连接；具体参见图3(c)及图4；可选地，所述第一连接线303和第二连接线304为多条，分别连接在多个第一电极301和第二电极302之间。
所述触控面板还包括遮光层(图中未示出)，其制作在触控区域四周的边框区域，用于防止边框区域漏光。所述多个第一电极引线305和第二电极引线306形成在所述遮光层之上。所述第一电极引线305和第二电极引线306可形成在所述遮光层同一侧或不同侧。
其中，所述第一透明导电层3071形成于每个所述第一电极引线305和第二电极引线306的上表面以及侧表面，所述第二透明导电层3072形成于每个所述第一电极引线305和第二电极引线306的下表面，所述第一透明导电层3071和第二透明导电层3072在所述第一电极引线和第二电极引线的边缘处接触形成闭合空间，用于将每个所述第一电极引线305和第二电极引线306完全包覆住，参见图4。
本发明提出的利用第一透明导电层3071和第二透明导电层3072将第一电极引线305和第二电极306引线包覆住，可以防止所述第一电极引线305和第二电极引线306被氧化，节省了为防止氧化和增加粘附力而需要在电极引线上方单独制作保护层的工序，且由于第一透明导电层3071和第二透明导电层3072能够导电，不影响所述第一电极引线305和第二电极引线306与外部电路的电连接。此外，由于第一电极引线305和第二电极引线306被第一透明导电层和第二透明导电层完全封闭，没有露出区域，可以防止第一电极引线和第二电极引线材料被氧化，且能够增加粘附力。同时，由于第一透明导电层3071和第二透明导电层3072分别与第一电极、第二电极、第一连接线和第二连接线中的至少一个同层形成，因此在制备上述触控面板时，并未增加制作工序。
当然，作为上述实施例的一个变形，还可以在上述结构的基础上省去下方的第二透明导电层，只保留位于电极引线上表面及侧表面的第一透明导电层，使其完全覆盖住电极引线的上表面和侧表面，并与基板形成密闭空间也能达到 同样的效果。当然，其他变形实施例中，所述第一透明导电层还可只覆盖电极引线上表面，同样也能起到防止氧化和增加粘附力的作用。另外，其他实施例中，所述透明导电层还可只形成在所述第一电极引线和第二电极引线的侧表面，以防止电极引线侧表面被氧化。
本发明实施例中，所述多个第一电极301和第二电极302交叉分布，在第一方向上，第一电极301通过第一连接线303彼此连接，在第二方向上，第二电极302通过第二连接线304彼此连接。第一连接线303和第二连接线304之间具有绝缘层308。
连接第一电极301的第一连接线303与所述第一电极301和第二电极302同层形成，而连接所述第二电极302的第二连接线304与它们不同层形成，且其通过上搭桥或下搭桥的方式连接第二电极302。
所述上搭桥是指在形成第一电极301、第二电极302和第一连接线303之后，在第二连接线304的位置处先形成一层绝缘层308，然后在绝缘层308上形成第二连接线304，并使得第二连接线304的两端与两相邻的第二电极302电连接；所述下搭桥是指在相应位置处先形成第二连接线304，在所述第二连接线304上形成绝缘层之后，再形成第一电极301、第二电极302和第一连接线303，其中，所述第二连接线304的两端与两相邻的第二电极302电连接。所述绝缘层的目的是在第一连接线303和第二连接线304交叉的位置让彼此绝缘。图3(a)～(c)、4示出的是下搭桥结构。
所述第一透明导电层3071与所述第一电极301、第二电极302和第一连接线303也同层形成，其形成在每个第一电极引线305和每个第二电极引线306的上表面及侧表面、或下方。所述第二透明导电层3072与所述第二连接线304同层形成，其形成在每个第一电极引线305和每个第二电极引线306的下方、或上表面及侧表面。也就是说，所述第一透明导电层3071和第二透明导电层3072分别形成在所述第一电极引线305和第二电极引线306的上方、下方及侧表面，整个将所述第一电极引线305和第二电极引线306包覆住。位于下方的 导电层形成在所述第一电极引线305和第二电极引线306的下表面，且面积等于或略大于所述第一电极引线305和第二电极引线306的面积，位于上方的导电层不仅形成在所述第一电极引线305和第二电极引线306的上表面，还形成在其侧表面，以与下方的导电层在所述第一电极引线305和第二电极引线306的边缘处接触设置，形成密闭空间。
对于上搭桥方式，所述第一透明导电层3071位于第一电极引线305和第二电极引线306的下表面，所述第二透明导电层3072位于所述第一电极引线305和第二电极引线306的上表面及侧表面，且与所述第一透明导电层在所述第一电极引线305和第二电极引线306的四周边缘接触设置。
对于下搭桥方式，所述第二透明导电层3072位于第一电极引线305和第二电极引线306的下表面，所述第一透明导电层3071位于所述第一电极引线305和第二电极引线306的上表面及侧表面，且与所述第二透明导电层在所述第一电极引线305和第二电极引线306的四周边缘接触设置。
可选地，所述第一透明导电层3071、第二透明导电层3072与第一电极301、第二电极302、第一连接线303、第二连接线304采用同样的材料制成。
其中，所述第一透明导电层3071和第二透明导电层3072需要采用透明导电物制成，如透明金属氧化物等制成，所述透明金属氧化物包括氧化铟锡ITO、氧化锌IZO等。所述第一电极301、第二电极302、第一连接线303、第二连接线304也可采用透明导电物制成，如透明金属氧化物等制成。
当然，本发明也不限于上述这种方式，还可以采用第一电极301和第一连接线303同层形成，而第二电极302和第二连接线304同层形成，并在第一连接线303和第二连接线304交叉部位形成绝缘层。所述第一透明导电层3071与所述第一电极301和第一连接线303同层形成，所述第二透明导电层3072与所述第二电极302和第二连接线304同层形成。这种结构中，所述第一透明导电层3071和第二透明导电层3072采用透明导电物制成，其他设置方式与第一实施例中记载的一致。
本发明的关键在于将电极引线露出的表面使用透明导电物包覆住，且使得所述透明导电层与所述第一电极、第二电极、第一连接或第二连接线中的至少之一同层形成，这样既不增加触控面板的制作工序，还以防止电极引线的氧化。而任何基于这种思想，对本发明方案所做的变形均在本发明的保护范围之内。
本发明还提出了一种触控面板的制作方法，其包括形成多个第一电极、多个第二电极、多个第一电极引线和多个第二电极引线；所述多个第一电极在第一方向上通过第一连接线彼此连接，所述多个第二电极在第二方向上通过第二连接线彼此连接；所述多个第一电极引线用于将第一方向上彼此连接的第一电极从触控区域引出，所述多个第二电极引线用于将第二方向上彼此连接的第二电极从触控区域引出；
其中，所述方法还包括：与所述第一电极、第二电极、第一连接线或第二连接线中的至少之一同层形成第一透明导电层，所述第一透明导电层覆盖在每个所述第一电极引线和第二电极引线表面。
可选地，所述方法还包括：与所述第一电极、第二电极、第一连接线或第二连接线中的至少之一同层形成第二透明导电层，所述第二透明导电层形成在每个所述第一电极引线和第二电极引线的下方，且与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和第二电极引线的闭合空间。
图5示出了本发明第一实施例中提出的触控面板的制作方法流程图。具体工艺流程可参见图3(a)～(c)。本实施例以下搭桥连接第二电极的方式为例说明本发明的具体制作工艺和步骤。如图5所示，其包括：
步骤501：形成第一透明导电材料层，对其进行构图工艺形成包括多个第二连接线304和多个第二透明导电层3072的图形；所述多个第二连接线304分别对应形成在连接两相邻第二电极302的位置处；所述多个第二透明导电层3072分别对应形成在每个第一电极引线305和第二电极引线306的位置，即位于第一电极301和第二电极302形成的阵列结构的第一侧边和第二侧边，所述第一侧边和第二侧边分别位于触控区域的相邻两边，且与所述第一方向和第二 方向垂直；
步骤502：形成绝缘层，对其进行构图工艺形成绝缘层图形；对绝缘层进行构图工艺时，可只保留第一连接线303和第二连接线304交叉区域处的绝缘层。也即，所述绝缘层图形至少包括对应于第一连接线303和第二连接线304交叉区域的图形；
步骤503：形成引线材料层，对其进行构图工艺形成包括第一电极引线305和第二电极引线306的图形；其中，所述第一电极引线305和第二电极引线306形成在第二透明导电层3072的上方，所述第一电极引线305用于将第一方向上彼此连接的第一电极301从触控区域引出，所述第二电极引线306用于将第二方向上彼此连接的第二电极302从触控区域引出；
步骤504：形成第二透明导电材料层，对其进行构图工艺形成包括多个第一电极301、多个第二电极302、第一连接线303和第一透明导电层3071的图形；其中，所述多个第一电极301在第一方向上通过所述第一连接线303彼此连接，所述多个第一电极和多个第二电极302交叉分布；所述第二电极302与所述第二连接线304电连接；所述第一透明导电层3071形成在所述第一电极引线305和第二电极引线306的上表面及侧表面，并与下方的第二透明导电层3072接触形成单独包覆每个所述第一电极引线305和第二电极引线306的闭合空间。
图6示出了本发明第二实施例中提出的触控面板的制作方法流程图。本实施例以上搭桥连接第二电极的方式为例说明本发明的具体制作工艺和步骤。如图6所示，该方法具体包括：
步骤601：形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极301、多个第二电极302、第一连接线303和第二透明导电层3072的图形；其中，所述多个第一电极301在第一方向上通过所述第一连接线303彼此连接，所述多个第一电极和多个第二电极302交叉分布；所述第二透明导电层3072对应形成在每个第一电极引线305和第二电极引线306的位置，即位于第 一电极301和第二电极302形成的阵列结构的第一侧边和第二侧边，所述第一侧边和第二侧边分别位于触控区域的相邻两边，且与所述第一方向和第二方向垂直；
步骤602：形成绝缘层，对其进行构图工艺形成绝缘层图形；对绝缘层进行构图工艺时，可只保留第一连接线303和第二连接线304交叉区域处的绝缘层。也即，所述绝缘层图形至少包括对应于第一连接线303和第二连接线304交叉区域的图形；
步骤603：形成引线材料层，对其进行构图工艺形成包括第一电极引线305和第二电极引线306的图形；其中，所述第一电极引线305和第二电极引线306形成在第二透明导电层3072的上方，所述第一电极引线305用于将第一方向上彼此连接的第一电极301引出，所述第二电极引线306用于将第二方向上彼此连接的第二电极302引出；
步骤604：形成第二透明导电材料层，对其进行构图工艺形成包括第二连接线304和第一透明导电层3071，所述第二连接线304用于在第二连接方向上连接两相邻的第二电极302的图形；所述第一透明导电层3071形成在所述第一电极引线305和第二电极引线306的上表面及侧表面，并与下方的第二透明导电层3072接触形成单独包覆每个所述第一电极引线305和第二电极引线306的闭合空间。
本发明的制作方法流程不限于上述方法步骤。
图7示出了本发明第三实施例中触控面板的制作方法流程图。如图7所示，该方法包括：
步骤701：形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极301、第一连接线303和第二透明导电层3072的图形；其中，所述多个第一电极301在第一方向上通过所述第一连接线303彼此连接；所述第二透明导电层3072对应形成在每个第一电极引线305和第二电极引线306的位置，即位于第一电极301和第二电极302形成的阵列结构的第一侧边和第二侧边， 所述第一侧边和第二侧边分别位于触控区域的相邻两边，且与所述第一方向和第二方向垂直；
步骤702：形成绝缘层，对其进行构图工艺形成绝缘层图形；对绝缘层进行构图工艺时，需要保留所述多个第一电极301、第一连接线303处的绝缘层，以防止在后续步骤中制作了第二电极302和第二连接线304后，第一电极301与第二电极302之间导电，而第一连接线303与第二连接线304之间导电；也即，所述绝缘层图形至少包括对应于多个第一电极301区域、第一连接线303和第二连接线304交叉区域的图形；
步骤703：形成引线材料层，对其进行构图工艺形成包括第一电极引线305和第二电极引线306的图形；其中，所述第一电极引线305和第二电极引线306形成在第2透明导电层3071的上方，所述第一电极引线305用于将第一方向上彼此连接的第一电极301引出，所述第二电极引线306用于将第二方向上彼此连接的第二电极302引出；
步骤704：形成第二透明导电材料层，对其进行构图工艺形成包括第二电极302、第二连接线304和第一透明导电层3071的图形；所述第二电极302与所述第一电极301交叉分布，且在第二方向上通过所述第二连接线304彼此连接；所述第一透明导电层3071形成在所述第一电极引线305和第二电极引线306的上表面及侧表面，并与下方的第一透明导电层3071接触形成单独包覆每个所述第一电极引线305和第二电极引线306的闭合空间。
上述三种制作方法中，在形成引线材料层之前，还包括在触控区域四周的边框区域形成遮光层，所述第一电极引线和第二电极引线形成在所述遮光层之上。
上述三种制作方法中，图5示出的这种方法制作的触控面板中，第二电极之间的第二连接线为下搭桥形式，而图6为上搭桥形式，图7中第一电极和第二电极分层形成。它们的共同点是在形成第一电极、第二电极、第一连接线和第二连接线时，至少要分成两层形成，而本发明正是利用两层形成的步骤，在 每层形成的同时还分别形成第二透明导电层和第一透明导电层，使得第二透明导电层和第一透明导电层包覆住第一电极引线和第二电极引线，这样不但可以防止所述第一电极引线和第二电极引线氧化以及增加其附着力，而且还减少了为防止氧化和增加粘附力而需要在电极引线上方单独制作保护层的一道工序。因此，本发明提出的上述方法既能节省工序，还能降低成本。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
应注意，措词“包括”不排除其它元件或步骤，措词“一”或“一个”不排除多个。另外，权利要求的任何元件标号不应理解为限制本发明的范围。

Claims (21)

  1. 一种触控面板，包括：
    多个第一电极，所述多个第一电极在第一方向上通过第一连接线彼此连接；
    多个第二电极，所述多个第二电极在第二方向上通过第二连接线彼此连接；
    多个第一电极引线，用于将第一方向上彼此连接的第一电极从触控区域引出；
    多个第二电极引线，用于将第二方向上彼此连接的第二电极从触控区域引出；
    其特征在于，所述触控面板还包括：
    至少一个透明导电层，所述至少一个透明导电层形成在每个所述第一电极引线和/或第二电极引线的至少一个表面，且与所述第一电极、第二电极、第一连接线和第二连接线中的至少之一同层形成。
  2. 如权利要求1所述的触控面板，其特征在于，所述至少一个透明导电层包括第一透明导电层，其形成于每个所述第一电极引线和/或第二电极引线的上表面。
  3. 如权利要求2所述的触控面板，其特征在于，所述第一透明导电层还形成在每个所述第一电极引线和第二电极引线的至少一个侧表面。
  4. 如权利要求3所述的触控面板，其特征在于，所述至少一个透明导电层还包括第二透明导电层，其形成在每个所述第一电极引线和/或第二电极引线的下表面，与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和/或第二电极引线的闭合空间。
  5. 如权利要求1-4任一项所述的触控面板，其特征在于，所述第一连接 线为多条，分别连接在多个第一电极之间，所述第二连接线为多条，分别连接在多个第二电极之间。
  6. 如权利要求1-4任一项所述的触控面板，其特征在于，所述第一连接线和第二连接线之间形成有绝缘层。
  7. 如权利要求4所述的触控面板，其特征在于，所述第一透明导电层与所述第一电极、第二电极和第一连接线同层形成；所述第二透明导电层与所述第二连接线同层形成。
  8. 如权利要求4所述的触控面板，其特征在于，所述第一透明导电层与所述第二连接线同层形成；所述第二透明导电层与所述第一电极、第二电极和第一连接线同层形成。
  9. 如权利要求4所述的触控面板，其特征在于，所述第一透明导电层与所述第一电极、第一连接线同层形成；所述第二透明导电层与所述第二电极和第二连接线同层形成。
  10. 如权利要求1-4、7-9任一项所述的触控面板，其特征在于，所述至少一个透明导电层与第一电极、第二电极、第一连接线、第二连接线采用同样的材料制成。
  11. 如权利要求10所述的触控面板，其特征在于，所述至少一个透明导电层与第一电极、第二电极、第一连接线、第二连接线采用透明的金属氧化物制成。
  12. 如权利要求11所述的触控面板，其特征在于，所述金属氧化物包括 氧化铟锡或氧化锌。
  13. 如权利要求1-4、7-9、11-12任一项所述的触控面板，其特征在于，所述触控面板还包括遮光层，其位于触控区域四周的边框区域。
  14. 如权利要求13所述的触控面板，其特征在于，所述第一电极引线和第二电极引线位于所述遮光层之上。
  15. 一种触控面板的制作方法，其包括：形成多个第一电极、多个第二电极、多个第一电极引线和多个第二电极引线；所述多个第一电极在第一方向上通过第一连接线彼此连接，所述多个第二电极在第二方向上通过第二连接线彼此连接；所述多个第一电极引线用于将第一方向上彼此连接的第一电极从触控区域引出，所述多个第二电极引线用于将第二方向上彼此连接的第二电极从触控区域引出；
    其特征在于，所述方法还包括：
    与所述第一电极、第二电极、第一连接线或第二连接线中的至少之一同层形成至少一个透明导电层，所述至少一个透明导电层形成于每个所述第一电极引线和/或第二电极引线的表面。
  16. 如权利要求15所述的方法，其特征在于，所述至少一个透明导电层包括第一透明导电层，所述第一透明导电层形成于每个所述第一电极引线和第二电极引线的上表面和侧表面。
  17. 如权利要求16所述的方法，其特征在于，
    所述至少一个透明导电层还包括第二透明导电层，所述第二透明导电层形成于每个所述第一电极引线和第二电极引线的下表面，且与所述第一透明导电层相互接触形成分别包覆每个所述第一电极引线和第二电极引线的闭合空间。
  18. 如权利要求17所述的方法，其特征在于，具体包括：
    形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线、多个第二电极和第二透明导电层的图形；所述第二透明导电层形成在所述多个第一电极引线和第二电极引线的对应位置处；
    形成绝缘材料层，并对其进行构图工艺形成绝缘层图形；
    形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
    形成第二透明导电材料层，对其进行构图工艺形成包括第二连接线和第一透明导电层的图形；所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于第一连接线和第二连接线交叉区域的图形。
  19. 如权利要求17所述的方法，其特征在于，具体包括：
    形成第一透明导电材料层，对其进行构图工艺形成包括第二连接线和第二透明导电层的图形；所述第二透明导电层形成于所述多个第一电极引线和第二电极引线的对应位置；
    形成绝缘层，并对其进行构图工艺形成绝缘层图形；
    形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
    形成第二透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线、多个第二电极和第一透明导电层的图形，所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于第一连接线和第二连接线 交叉区域的图形。
  20. 如权利要求17所述的方法，其特征在于，具体包括：
    形成第一透明导电材料层，对其进行构图工艺形成包括多个第一电极、第一连接线和第二透明导电层的图形；所述第二透明导电层形成在所述多个第一电极引线和第二电极引线的对应位置处；
    形成绝缘层，并对其进行构图工艺形成绝缘层图形；
    形成引线材料层，对其进行构图工艺形成包括多个第一电极引线和第二电极引线的图形；
    形成第二透明导电材料层，对其进行构图工艺形成包括多个第二电极、第二连接线和第一透明导电层的图形；所述第一透明导电层形成在所述多个第一电极引线和第二电极引线的上表面及侧表面；其中，所述第一透明导电层和第二透明导电层接触形成包覆每个所述第一电极引线和第二电极引线的闭合空间；所述绝缘层图形至少包括对应于多个第一电极区域的图形。
  21. 一种触控显示装置，其包括如权利要求1-14任一项所述的触控面板。
PCT/CN2015/092670 2014-12-15 2015-10-23 触控面板及其制作方法、触控显示装置 WO2016095609A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15868659.2A EP3070583A4 (en) 2014-12-15 2015-10-23 Touch panel and manufacturing method therefor, and touch display device
US15/106,212 US10203784B2 (en) 2014-12-15 2015-10-23 Touch panel, method for manufacturing the same and touch display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410776006.8 2014-12-15
CN201410776006.8A CN104407743A (zh) 2014-12-15 2014-12-15 一种触控面板及其制作方法、触控显示装置

Publications (1)

Publication Number Publication Date
WO2016095609A1 true WO2016095609A1 (zh) 2016-06-23

Family

ID=52645379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/092670 WO2016095609A1 (zh) 2014-12-15 2015-10-23 触控面板及其制作方法、触控显示装置

Country Status (4)

Country Link
US (1) US10203784B2 (zh)
EP (1) EP3070583A4 (zh)
CN (1) CN104407743A (zh)
WO (1) WO2016095609A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407743A (zh) * 2014-12-15 2015-03-11 京东方科技集团股份有限公司 一种触控面板及其制作方法、触控显示装置
CN108733242B (zh) * 2017-04-17 2024-02-20 深圳莱宝高科技股份有限公司 金属引线触控面板及其制作方法
CN110825262B (zh) * 2019-10-29 2023-06-23 昆山龙腾光电股份有限公司 触控面板、触控面板的制作方法及显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102073158A (zh) * 2010-11-30 2011-05-25 深圳莱宝高科技股份有限公司 面板装置及电子设备
CN103019493A (zh) * 2012-12-24 2013-04-03 无锡力合光电石墨烯应用研发中心有限公司 一种用于电容式触摸屏的电极结构及其制备方法
CN103677431A (zh) * 2013-12-31 2014-03-26 京东方科技集团股份有限公司 一种触摸屏及其制作方法、显示装置
CN104407743A (zh) * 2014-12-15 2015-03-11 京东方科技集团股份有限公司 一种触控面板及其制作方法、触控显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010002984A (ja) * 2008-06-18 2010-01-07 Hitachi Displays Ltd 平坦膜およびその製造方法、並びにそれを用いたタッチパネル表示装置およびその製造方法
KR101055102B1 (ko) * 2009-01-21 2011-08-08 엘지이노텍 주식회사 입력장치
KR101706232B1 (ko) * 2010-06-29 2017-02-15 엘지디스플레이 주식회사 터치 패널
JP5538567B2 (ja) * 2010-12-09 2014-07-02 シャープ株式会社 タッチパネル及びそれを備えた表示装置並びにタッチパネルの製造方法
US20140320761A1 (en) * 2011-09-02 2014-10-30 Sharp Kabushiki Kaisha Touch panel and display apparatus
CN103092411A (zh) * 2013-01-10 2013-05-08 北京京东方光电科技有限公司 一种触摸屏及其制作方法、显示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102073158A (zh) * 2010-11-30 2011-05-25 深圳莱宝高科技股份有限公司 面板装置及电子设备
CN103019493A (zh) * 2012-12-24 2013-04-03 无锡力合光电石墨烯应用研发中心有限公司 一种用于电容式触摸屏的电极结构及其制备方法
CN103677431A (zh) * 2013-12-31 2014-03-26 京东方科技集团股份有限公司 一种触摸屏及其制作方法、显示装置
CN104407743A (zh) * 2014-12-15 2015-03-11 京东方科技集团股份有限公司 一种触控面板及其制作方法、触控显示装置

Also Published As

Publication number Publication date
US10203784B2 (en) 2019-02-12
EP3070583A1 (en) 2016-09-21
CN104407743A (zh) 2015-03-11
EP3070583A4 (en) 2018-02-28
US20160364034A1 (en) 2016-12-15

Similar Documents

Publication Publication Date Title
US9857922B2 (en) Touch panel and manufacturing method thereof
TWI664560B (zh) 層疊構造體、觸摸面板、帶觸摸面板的顯示裝置及其製造方法
TWI503710B (zh) 觸控面板及其蓋板結構
CN106125999B (zh) 显示装置
US9760164B2 (en) Touch panel and a manufacturing method thereof
US20100053114A1 (en) Touch panel apparatus and method for manufacturing the same
JP6074055B2 (ja) タッチパネル、及びその製造方法
WO2020029371A1 (zh) 一种触摸屏及oled显示面板
WO2020029372A1 (zh) 一种触摸屏及oled显示面板
WO2018014382A1 (zh) 阵列基板及触控显示器
TW201820090A (zh) Oled一體型觸控感測器及包括其的oled影像顯示裝置
JP5827972B2 (ja) タッチセンサ一体型表示装置
TWI484382B (zh) 觸控面板
KR20150043798A (ko) 터치 패널 및 터치 패널의 제조 방법
TWI626567B (zh) 觸控面板及其製造方法
TW201250557A (en) Manufacturing method of touch panel
KR102294702B1 (ko) 터치 패널
WO2016095609A1 (zh) 触控面板及其制作方法、触控显示装置
US10921929B2 (en) Touch screen panel and method of manufacturing the same
KR102254179B1 (ko) 터치 감지 디스플레이 장치
WO2016002461A1 (ja) 入力装置およびその製造方法
US9619085B2 (en) Pattern of a capacitive touch device and manufacturing method thereof
KR20100052641A (ko) 터치패널의 제조용 패드 및 이에 인쇄회로기판이 결합한 조립체
JP5659684B2 (ja) タッチパネル基板及びその製造方法
JP2012524324A (ja) タッチパネル製造用パッド、これを用いたタッチパネル製造方法およびこれによって製造されるタッチパネル

Legal Events

Date Code Title Description
REEP Request for entry into the european phase

Ref document number: 2015868659

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 15106212

Country of ref document: US

Ref document number: 2015868659

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15868659

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE