WO2020133232A1 - 可拉伸触控面板 - Google Patents

可拉伸触控面板 Download PDF

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Publication number
WO2020133232A1
WO2020133232A1 PCT/CN2018/124927 CN2018124927W WO2020133232A1 WO 2020133232 A1 WO2020133232 A1 WO 2020133232A1 CN 2018124927 W CN2018124927 W CN 2018124927W WO 2020133232 A1 WO2020133232 A1 WO 2020133232A1
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WO
WIPO (PCT)
Prior art keywords
stretchable
touch
touch panel
connection line
area
Prior art date
Application number
PCT/CN2018/124927
Other languages
English (en)
French (fr)
Inventor
李贺
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2018/124927 priority Critical patent/WO2020133232A1/zh
Priority to CN201880095885.4A priority patent/CN112655057A/zh
Publication of WO2020133232A1 publication Critical patent/WO2020133232A1/zh
Priority to US17/360,311 priority patent/US20210326003A1/en

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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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • 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
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • 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
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • the present application relates to the field of touch sensing technology, and in particular to a stretchable touch panel.
  • Stretchable touch panels are increasingly favored by some enterprises, colleges and research institutions. They gradually take stretchable touch panels as the focus of research and development, but there are no mature stretchable touch panels on the market. product.
  • the existing stretchable touch panel can realize the touch function in the stretched state to a certain extent, because of its simple construction principle, the whole-surface stretchable design is generally adopted, so all the conductive circuits in the plane All need to withstand tensile deformation, which requires high tensile resistance of all conductive lines, and this stretchable touch panel has a very high probability of failure after a certain number of stretches, so the functional stability is poor.
  • the present application provides a stretchable touch panel, which is used to solve the problem of poor functional stability of the existing stretchable touch panel.
  • the stretchable touch panel includes:
  • a substrate, the substrate is formed with a plurality of regions having different stretch ratios
  • the touch traces include a first connection line and a second connection line connected to the first connection line, the first connection line is provided in a region with a low stretch rate, the first The second connecting line is set in a region with a high stretch rate.
  • the first connection line is linear.
  • the second connection line has a curved line shape or a broken line shape.
  • the curvilinear shape includes a sinusoidal shape, a horseshoe shape, and a wave shape.
  • the second connection line is formed of a stretch-resistant conductive material.
  • the second connection line is formed in the area with a low stretch rate by screen printing, transferring, spraying, or sputtering.
  • the substrate includes a first stretchable area and a second stretchable area, and the stretch rate of the first stretchable area is less than that of the second Stretching ratio of the stretchable area, the first stretchable area and the second stretchable area are spaced apart from each other in at least one direction, and the first connecting line is provided in the first stretchable area , The second connecting line is disposed in the second stretchable area.
  • the first stretchable area and the second stretchable area are arranged spaced apart from each other along the length direction.
  • the first stretchable area and the second stretchable area both extend into a stripe structure along the width direction, and the second connection line is connected at It is disposed between the first connecting lines on the adjacent first stretchable regions and is at the end in the width direction of the second stretchable region.
  • the stretchable touch panel further includes a touch function layer disposed on one side of the first stretchable area, the touch function layer is patterned to form a plurality of touch electrodes, The plurality of touch electrodes are electrically connected to the first connection line.
  • the touch function layer is shaped like a slider.
  • the first stretchable area and the second stretchable area are arranged spaced apart from each other along the length direction and the width direction.
  • the first stretchable area and the second stretchable area extend into a square structure along the length or width direction, and the second connection line is connected Between the first connecting lines provided on the adjacent first stretchable area.
  • a touch function layer disposed on both sides of the first stretchable area is also included.
  • the touch function layer is patterned on the first
  • a plurality of touch-sensing electrodes and a plurality of touch-driving electrodes are formed on both sides of the stretched area respectively, and a plurality of the touch-sensing electrodes and the plurality of touch-driving electrodes are on both sides of the first stretchable area
  • the touch electrode is electrically connected to the first connection line.
  • a plurality of pins arranged at intervals in the second stretchable area are also included, and a plurality of the pins pass through the touch trace
  • the stretchable touch panel is bound and engaged with external functional elements through the pins.
  • a cover protection layer overlying the substrate is also included for protecting the touch trace.
  • the cover protection layer is formed of an elastic material.
  • the substrate includes at least one elastic material and at least one non-elastic material, or the substrate includes at least one elastic material and at least another elastic material.
  • the substrate includes two elastic materials, one of which is polydimethyloxane, and the other is of liquid silicone rubber.
  • the substrate includes:
  • liquid silicone rubber 0.1 to 1.5 parts by weight of liquid silicone rubber.
  • the first connection line can be set at a lower stretch ratio Area, so that the first connecting line undergoes a small degree of tensile deformation, or even no tensile deformation, and the second connecting line is set in a region with a high stretching rate, so that the second connecting line will undergo a tensile deformation,
  • This not only enables the stretchable touch panel to have a stretching function, but also does not substantially affect the touch trace during the stretching process, thereby ensuring the function of the stretchable touch panel stability.
  • Figure 1 shows a comparison of tensile fracture tests of the three substrates A, B, and C;
  • FIG. 2 shows a front view of a stretchable touch panel provided according to Embodiment 1 of the present application
  • FIG. 3 shows a side view of the stretchable touch panel according to Embodiment 1 of the present application
  • FIG. 5 shows a front view of a stretchable touch panel provided according to Embodiment 2 of the present application
  • FIG. 6 shows a side view of a stretchable touch panel provided according to Embodiment 2 of the present application.
  • FIG. 7 shows a schematic structural view of one side of a stretchable touch panel according to Embodiment 2 of the present application.
  • FIG. 8 shows a schematic structural diagram of the other side of the stretchable touch panel according to Embodiment 2 of the present application.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise specifically limited.
  • the terms “installation”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, it can be the connection between two components or the interaction between two components.
  • installation can be a fixed connection or a detachable connection , Or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, it can be the connection between two components or the interaction between two components.
  • the first feature may be “on” or “below” the second feature "the first and second features are in direct contact, or the first and second features are indirectly through an intermediary contact.
  • the first feature is “above”, “above” and “above” the second feature may be that the first feature is directly above or diagonally above the second feature, or simply means that the first feature level is higher than the second feature.
  • the first feature is “below”, “below”, and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontal than the second feature.
  • a stretchable touch panel in an embodiment of the present application, can have stretch performance on the basis of realizing the function of a traditional touch panel, so as to realize the touch function in a stretched state .
  • the stretchable touch panel includes a substrate 100 and a touch trace 200 for implementing a touch function.
  • the substrate 100 is formed with a plurality of regions having different stretch ratios.
  • the touch trace 200 includes a first connection line 210 and a second connection line 220 connected to the first connection line 210.
  • the first connection line 210 is set in a region with a low stretch rate
  • the second connection line 220 is set in a stretch Areas with higher rates.
  • first connection line 210 refers to a circuit part that plays a decisive role in the touch function of the touch trace 200.
  • the “second connection line 220 ” refers to an auxiliary line portion connected between the “first connection line 210 ”, which often plays an auxiliary connection role for the touch function of the touch trace 200.
  • the level of the stretch rate reflects the magnitude of the tensile deformation, that is to say, under the same tensile force, the area with a higher stretch rate has a larger tensile deformation, and the stretch The area with a lower rate has a smaller tensile deformation.
  • the layout of the first connection line 210 and the second connection line 220 and the connection relationship between them are combined with external functional elements (such as PCB), and then the A touch function layer connected by a connecting line 210 can realize the touch function.
  • external functional elements such as PCB
  • the touch function layer is disposed in a region with a low stretch rate, the touch function layer can be prevented from stretching deformation or a large degree of stretching deformation, and the sense of touch signal caused by the stretching deformation can be avoided The problem of reduced measurement accuracy.
  • the touch function layer is arranged in a region with a low stretch rate, it is not easy to produce tensile deformation, so the touch function layer can be set to a complex touch sensing pattern 300 to achieve more complex touch Function, as in the second embodiment below.
  • the first connection wires 210 can be disposed in areas with a low stretch ratio, so that the first connection wires 210 to a lesser degree of tensile deformation, or even no tensile deformation, the second connecting wire 220 is set in a region with a higher stretching rate, so that the second connecting wire 220 will undergo tensile deformation accordingly, which not only can
  • the stretchable touch panel has a stretching function, and does not substantially affect the touch trace 200 during the stretching process, thereby enabling the stretchable touch panel to achieve more complicated
  • the touch function also ensures the functional stability of the stretchable touch panel.
  • the touch trace 200 in this application can be based on any existing touch panel as a prototype, directly copy the touch trace 200 of the touch panel to the substrate 100, and at the same time on the substrate 100
  • Each area matching the touch trace 200 is designed above.
  • the first connection line 210 and the second connection line 220 should be distinguished so that the first connection line 210 and the second connection line 220 correspond to each other. Set in each area.
  • the first connecting line 210 since the first connecting line 210 is disposed in a region with a low stretch rate, it cannot undergo tensile deformation with the region with a low stretch rate, or only a small degree of tensile deformation, so When the first connection line 210 is used as a peripheral wiring line of the stretchable touch panel, it can be set to a simple linear structure, such as a linear type, thereby greatly saving the peripheral routing of the stretchable touch panel
  • the line space helps to release more functional areas, and reference can be made to the first embodiment below.
  • the second connection line 220 is a line connecting between adjacent first connection lines 210, and the second connection line 220 is connected to the first connection line 210.
  • the second connecting wire 220 since the second connecting wire 220 is disposed in a region with a high stretching rate, the second connecting wire 220 will undergo tensile deformation along with the region with a high stretching rate.
  • the second connecting wire 220 has better tensile resistance.
  • the second connecting wire 220 is preferably configured to be in a curved line shape or a zigzag line shape so that it can obtain tensile resistance under the condition of having a tensile buffer effect.
  • the curvilinear shape may include sine shape, horseshoe shape, wave shape and other various shapes, which will not be exhaustively described in this application. Nonetheless, those skilled in the art and related personnel should select the specific curve type according to the actual situation without hindrance, for example, the curve type used by the second connection line 220 in the first and second embodiments below It is sinusoidal.
  • the forming material of the second connecting wire 220 can also be changed to make it have better tensile resistance.
  • some tensile-resistant conductive materials may be used to make the second connecting wire 220, such as a tensile-resistant aluminum alloy material or a tensile-resistant nickel aluminum alloy material.
  • the line types, materials, and selection between the first connection line 210 and the second connection line 220 has multiple selection modes.
  • the first connecting wire 210 may use a non-stretch-resistant conductive material (of course, a stretch-resistant conductive material may also be used), and the line type is set to a straight line type, and the second The connecting wire 220 is made of stretch-resistant conductive material, and then the two are connected together. At this time, the second connection line 220 may adopt a straight line type or a curved line type.
  • the first connecting wire 210 may use a non-stretch-resistant conductive material (of course, a stretch-resistant conductive material may also be used), and the line type is set to a straight line type, and the first The second connecting wire 220 is also made of a conductive material that is not resistant to stretching, and then will be connected together. At this time, the second connection line 220 may adopt a curved line type.
  • the first connection line 210 and the second connection line 220 may use the same connection line.
  • Connection line For example, the second connection line 220 and the first connection line 210 in the first and second embodiments to be described below use the same material connection line, but they have different line structures, the first connection line 210 It is a straight line type, and the second connection line 220 adopts a curved line type.
  • both the first connecting wire 210 and the second connecting wire 220 can be formed of a tensile-resistant conductive material.
  • the first connecting wire 210 is disposed in a region with a low stretch rate, there is no tensile deformation or the degree of tensile deformation is very small.
  • the prior art method can be adopted when the first connecting wire 210 is arranged Attach it directly to the area with a low stretch rate.
  • the second connecting wire 220 is set in a region with a high stretching rate, and it will be stretched. Therefore, when the second connecting wire 220 is arranged, it can be formed in the stretching by means of screen printing, transfer, spraying, or sputtering. Areas with higher rates.
  • the substrate 100 exhibits the following mechanical and physical properties: the tensile strength is basically the same, but the tensile rate will be significantly different. In other words, the force required to pull the substrate 100 is the same, but the tensile deformation will be significantly different.
  • A: Polydimethyloxane: liquid silicone rubber 1: 0.1 ⁇ 0.5;
  • the substrate 100 formed by the above three blending ratios was subjected to a tensile breaking test.
  • the tensile breaking force was basically around 100 kpa, and the tensile deformation was significantly different. Among them, the tensile strain of A is the smallest, the tensile strain of C is the largest, and B is in the middle.
  • the substrate 100 in the foregoing is based on the above theory.
  • the substrate 100 may include at least one elastic material and at least one non-elastic material, or the substrate 100 includes at least one elastic material and at least another elastic material.
  • A is set to a region with a low stretch rate
  • C is set to a region with a high stretch rate.
  • the base 100 when the base 100 is formed by blending polydimethyloxane and liquid silicone rubber, it can be achieved by means of a corresponding mold, and the corresponding proportion of polydimethyloxane and liquid silicone rubber are injected into the corresponding mold Areas, after curing and molding, areas with different stretch ratios can be obtained.
  • the substrate 100 at this time includes the first stretchable region 110 and the second stretchable region 120.
  • the stretch rate of the first stretchable region 110 is smaller than the stretch rate of the second stretchable region 120.
  • the first stretchable region 110 and the second stretchable region 120 are at least along each other in one direction Arranged at intervals, the first connecting wire 210 is disposed in the first stretchable region 110, and the second connecting wire 220 is disposed in the second stretchable region 120.
  • the first stretchable region 110 and the second stretchable region 120 of the substrate 100 in the stretchable touch panel provided in the first embodiment are spaced apart from each other along the length direction, forming a A self-contained stretchable touch panel.
  • the stretchable touch panel can be formed after the first connection line 210 is disposed in the first stretchable region 110 and the second connection line 220 is disposed in the second stretchable region 120 ,
  • the stretchable touch panel has stretch properties in the length direction.
  • the second connecting wire 220 adopts a sinusoidal shape. During the stretching process, the second connecting wire 220 will be stretched following the second stretchable area 120, and then realized The tensile properties of the entire stretchable touch panel.
  • the first connecting wire 210 will not follow the first stretchable region 110 to undergo tensile deformation or will only have a small degree of tensile deformation, at this time the first connecting wire 210 can be well protected, so that the first connecting wire 210
  • the tensile resistance of is improved, and the first connecting line 210 is mainly used to construct the touch function of the stretchable touch panel, so the influence of the tensile deformation on the touch signal can be avoided or reduced, and the accuracy of touch can be improved.
  • first stretchable region 110 and the second stretchable region 120 both extend into a stripe structure along the width direction, and the second connecting line 220 is connected to the adjacent first stretchable region 110 Between the first connecting lines 210 on the upper side and at the ends of the second stretchable region 120 in the width direction.
  • arranging the second connection line 220 at the end of the second stretchable region 120 may cause the second connection line 220 to form part of the peripheral trace of the touch trace 200, at this time it can be known It is to be noted that at least the first connection line 210 connected to the second connection line 220 may adopt a straight-line structure, which can save the peripheral wiring space of the stretchable touch panel and help to release more functional areas.
  • a touch function layer is provided on one side of the first stretchable region 110, and the touch function layer is patterned to form a plurality of touch electrodes (touch sensing patterns 300), The multiple touch electrodes are electrically connected to the first connection line 210.
  • the touch function layer may have a slider shape.
  • the touch function layer may also be arranged in a triangular shape or other shapes.
  • the first stretchable area 110 is also provided with a plurality of pins 400 arranged at intervals.
  • the multiple pins 400 correspond to the touch electrodes one by one through the touch trace 200 to stretch the touch.
  • the control panel is bound and connected with external functional elements such as PCB through pins 400.
  • the touch function of the stretchable touch panel can be realized by touching the touch function layer.
  • FIGS. 5-8 Please refer to FIGS. 5-8.
  • the difference from the previous embodiment 1 is that the first stretchable region 110 and the second stretchable region 120 of the substrate 100 in the stretchable touch panel provided in the second embodiment
  • the length direction and the width direction are spaced apart from each other.
  • a mutually compatible stretchable touch panel can be formed, which can realize complex touch functions such as multi-touch.
  • the arrangement of the substrate 100 and the first connection line 210 and the second connection line 220 in a single direction in this embodiment is the same as that in the previous embodiment 1, so that the stretchable touch panel has stretch performance in both length and width directions .
  • first stretchable region 110 and the second stretchable region 120 extend into a square structure along the length or width direction, and the second connecting line 220 is connected to the adjacent first stretchable region 110 between the first connection line 210.
  • first connection line 210 and the second connection line 220 are provided on both sides of the substrate 100, and the first connection line 210 and the second connection line 220 provided on the side of the substrate 100 are The first connection line 210 and the second connection line 220 on one side are respectively arranged corresponding to the cross.
  • the first connection line 210 and the second connection line 220 arranged in the length and width directions are in a crossing state, the first connection line 210 and the second connection line 220 arranged in the length direction or the width direction at this time are constituted
  • the receiving line (RX line) of the stretchable touch panel is formed, and the first connecting line 210 and the second connecting line 220 arranged in the width direction or along the length direction constitute the transmitting line (TX) of the stretchable touch panel Line), the above two lines intersect in the first stretchable area 110 and can be stretched in both directions, so they are not likely to be shifted or fluctuated due to stretching deformation, and the stability of touch performance will also be improved at this time, based on This can implement complex touch functions.
  • a touch function layer is also provided in this embodiment, but unlike the first embodiment, the touch function layer in this embodiment is patterned in the first stretchable region 110 after patterning A plurality of touch-sensing electrodes and a plurality of touch-driving electrodes are respectively formed on both sides, and the plurality of touch-sensing electrodes and the plurality of touch-driving electrodes are correspondingly disposed on both sides of the first stretchable region 110 to form touch electrodes , The touch electrode is electrically connected to the first connection line 210.
  • the stretchable touch panel can be stretched in both the length and width directions, during the stretching process, the touch function layer does not undergo stretch deformation or has only a small degree of stretch deformation, so
  • the touch sensing pattern 300 formed by the touch function layer can be complicated to realize more complicated touch functions, such as multi-touch.
  • this embodiment is also provided with a plurality of pins 400 arranged at intervals on the first stretchable region 110.
  • the multiple pins 400 are connected to the touch electrode 1 through the touch trace 200
  • the stretchable touch panel is bound and connected to external functional elements such as PCB through pins 400.
  • the touch function of the stretchable touch panel can be realized by touching the touch function layer.
  • first connection line 210 and the second connection line 220 are provided on both sides of the substrate 100
  • a design scheme of a double-substrate double-layer circuit may also be provided, that is, a first connection line 210 and a second connection line 220 arranged along the length direction on one substrate 100 and a width direction on the other substrate 100
  • the arrangement of the first connection line 210 and the second connection line 220 can achieve a more complicated touch control function by combining the two substrates 100.
  • first stretchable region 110 and the second stretchable region 120 spaced apart from each other can also be added in the thickness direction thereof, so that the stretchable touch panel With tensile properties in the thickness direction.
  • a cover protection layer 500 may also be provided above the substrate 100 for the touch trace 200, that is, the first connection line 210 and the second connection line 220 Protect it.
  • the cover protection layer 500 may be formed of an elastic material, for example, it may be made of a material similar to the substrate 100, so that the cover protection layer 500 can undergo tensile deformation along with the substrate 100.
  • the elastic material can be freely selected according to requirements, for example, rubber or silicone can be used.

Abstract

本申请公开了一种可拉伸触控面板，包括基底(100)及触控走线(200)，所述基底(100)形成有多个具有不同拉伸率的区域，所述触控走线(200)包括第一连接线(210)及与所述第一连接线(210)相连的第二连接线(220)，所述第一连接线(210)设置在拉伸率较低的区域，所述第二连接线(220)设置在拉伸率较高的区域。本申请通过将第一连接线(210)和第二连接线(220)分别对应设置在具有不同拉伸率的区域内，不仅能够使得该可拉伸触控面板具有拉伸功能，而且在拉伸的过程中还不会对触控走线形成实质性的影响，从而保证了该可拉伸触控面板的功能稳定性。

Description

可拉伸触控面板 技术领域
本申请涉及触摸传感技术领域，具体涉及一种可拉伸触控面板。
背景技术
可拉伸触控面板越来越受到一些企业、院校和研究机构的青睐，它们逐渐将可拉伸触控面板作为研发方向的重点，但是市面上尚不存在成熟的可拉伸触控面板产品。
现有的可拉伸触控面板虽然能在一定程度上实现拉伸状态下的触控功能，但因其构成原理简单，一般采用整面式的可拉伸设计，所以面内的所有导电线路都需要承受拉伸形变，对所有导电线路的抗拉伸能力要求高，而且这种可拉伸触控面板在拉伸一定次数后出现失效的概率极高，因此功能稳定性较差。
发明内容
针对现有技术的不足，本申请提供了一种可拉伸触控面板，用于解决现有的可拉伸触控面板功能稳定性差的问题。
为此，根据本申请的实施例，该可拉伸触控面板包括：
基底，所述基底形成有多个具有不同拉伸率的区域；及
触控走线，所述触控走线包括第一连接线及与所述第一连接线相连 的第二连接线，所述第一连接线设置在拉伸率较低的区域，所述第二连接线设置在拉伸率较高的区域。
作为所述可拉伸触控面板的进一步可选方案，所述第一连接线呈直线线型。
作为所述可拉伸触控面板的进一步可选方案，所述第二连接线呈曲线线型或折线线型。
作为所述可拉伸触控面板的进一步可选方案，所述曲线线型包括正弦型、马蹄型及波浪型。
作为所述可拉伸触控面板的进一步可选方案，所述第二连接线由耐拉伸的导电材料形成。
作为所述可拉伸触控面板的进一步可选方案，所述第二连接线通过丝印、转移、喷涂或溅射的方式形成在所述拉伸率较低的区域。
作为所述可拉伸触控面板的进一步可选方案，所述基底包括第一可拉伸区域及第二可拉伸区域，所述第一可拉伸区域的拉伸率小于所述第二可拉伸区域的拉伸率，所述第一可拉伸区域和所述第二可拉伸区域至少沿一个方向彼此间隔布置，所述第一连接线设置在所述第一可拉伸区域，所述第二连接线设置在所述第二可拉伸区域。
作为所述可拉伸触控面板的进一步可选方案，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向彼此间隔布置。
作为所述可拉伸触控面板的进一步可选方案，所述第一可拉伸区域和所述第二可拉伸区域均沿宽度方向延伸成条形结构，所述第二连接线连接在设置于相邻的第一可拉伸区域上的所述第一连接线之间，并处于所述第二可拉伸区域宽度方向的端部。
作为所述可拉伸触控面板的进一步可选方案，还包括设置在所述第一可拉伸区域一侧的触控功能层，所述触控功能层图案化形成多个触控 电极，多个所述触控电极与所述第一连接线电连接。
作为所述可拉伸触控面板的进一步可选方案，所述触控功能层呈滑条状。
作为所述可拉伸触控面板的进一步可选方案，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向和宽度方向彼此间隔布置。
作为所述可拉伸触控面板的进一步可选方案，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向或宽度方向延伸成方形结构，所述第二连接线连接在设置于相邻的第一可拉伸区域上的所述第一连接线之间。
作为所述可拉伸触控面板的进一步可选方案，还包括设置在所述第一可拉伸区域两侧的触控功能层，所述触控功能层图案化后在所述第一可拉伸区域两侧分别形成多个触控感应电极和多个触控驱动电极，多个所述触控感应电极与多个所述触控驱动电极在所述第一可拉伸区域的两侧相对应设置以形成触控电极，所述触控电极与所述第一连接线电连接。
作为所述可拉伸触控面板的进一步可选方案，还包括设置于所述第二可拉伸区域的多个间隔排布的引脚，多个所述引脚通过所述触控走线与所述触控电极一一对应，所述可拉伸触控面板通过所述引脚与外部功能元件绑定接合。
作为所述可拉伸触控面板的进一步可选方案，还包括覆盖在所述基底上方的覆盖保护层，用于对所述触控走线进行保护。
作为所述可拉伸触控面板的进一步可选方案，所述覆盖保护层由弹性材料形成。
作为所述可拉伸触控面板的进一步可选方案，所述基底包括至少一种弹性材料和至少一种非弹性材料，或所述基底包括至少一种弹性材料 和至少另一种弹性材料。
作为所述可拉伸触控面板的进一步可选方案，所述基底包括两种弹性材料，其中一种弹性材料为聚二甲基氧烷，另一种弹性材料为液态硅橡胶。
作为所述可拉伸触控面板的进一步可选方案，按重量份计，所述基底包括：
1重量份的聚二甲基氧烷；及
0.1～1.5重量份的液态硅橡胶。
本申请的有益效果：
依据以上实施例中的可拉伸触控面板，由于基底形成有多个具有不同拉伸率的区域，使得在布局触控走线时，可将第一连接线设置在拉伸率较低的区域，使第一连接线发生较小程度的拉伸形变，甚至不发生拉伸形变，将第二连接线设置在拉伸率较高的区域，使得第二连接线随之发生拉伸形变，由此不仅能够使得该可拉伸触控面板具有拉伸功能，而且在拉伸的过程中还不会对触控走线形成实质性的影响，从而保证了该可拉伸触控面板的功能稳定性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，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相关的附图。
图1示出了A、B、C三种基底的拉伸断裂测试对比图；
图2示出了根据本申请实施例一所提供的可拉伸触控面板的主视图；
图3示出了根据本申请实施例一所提供的可拉伸触控面板的侧视图；
图4示出了根据本申请实施例一所提供的可拉伸触控面板的拉伸后的示意图；
图5示出了根据本申请实施例二所提供的可拉伸触控面板的主视图；
图6示出了根据本申请实施例二所提供的可拉伸触控面板的侧视图；
图7示出了根据本申请实施例二所提供的可拉伸触控面板的一侧的结构示意图；
图8示出了根据本申请实施例二所提供的可拉伸触控面板的另一侧的结构示意图。
主要元件符号说明：
100-基底；200-触控走线；300-触控传感图案；400-引脚；500-覆盖保护层；110-第一可拉伸区域；120-第二可拉伸区域；210-第一连接线；220-第二连接线。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出， 其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特 征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本申请实施例中提供了一种可拉伸触控面板，该可拉伸触控面板能够在实现传统触控面板功能的基础上具备拉伸性能，以实现拉伸状态下的触控功能。
该可拉伸触控面板包括基底100及用于实现触控功能的触控走线200。
其中，基底100形成有多个具有不同拉伸率的区域。触控走线200包括第一连接线210及与第一连接线210相连的第二连接线220，第一连接线210设置在拉伸率较低的区域，第二连接线220设置在拉伸率较高的区域。
此处需要说明的是，“第一连接线210”是指对触控走线200的触控功能起决定性作用的线路部分。
“第二连接线220”是指连接在“第一连接线210”之间的辅助线路部分，其对触控走线200的触控功能往往起着辅助连接的作用。
另外需要指出的是，拉伸率的高低反应的是拉伸形变量的大小，也就是说在同样的拉力作用下，拉伸率较高的区域，其拉伸形变量较大，而拉伸率较低的区域，其拉伸形变量较小。
本申请通过第一连接线210和第二连接线220各自的布局以及它们之间的连接关系并结合外部功能元件(例如PCB)，再在拉伸率较低的区域的至少一侧设置与第一连接线210连接的触控功能层即可实现触控功能。此时由于将触控功能层设置在拉伸率较低的区域，可防止触控功能层产生拉伸形变或者较大程度的拉伸形变，能够避免由于拉伸形变而造成的对触摸信号感测精度降低的问题。
另外，由于将触控功能层设置在拉伸率较低的区域，其不易产生拉伸形变，因此可将触控功能层设置成复杂的触控传感图案300，以实现更复杂的触控功能，如下述实施例二。
由此，由于基底100形成有多个具有不同拉伸率的区域，使得在布局触控走线200时，可将第一连接线210设置在拉伸率较低的区域，使第一连接线210发生较小程度的拉伸形变，甚至不发生拉伸形变，将第二连接线220设置在拉伸率较高的区域，使得第二连接线220随之发生拉伸形变，由此不仅能够使得该可拉伸触控面板具有拉伸功能，而且在拉伸的过程中还不会对触控走线200形成实质性的影响，从而使得该可拉伸触控面板能够实现更为复杂的触控功能，同时保证了该可拉伸触控面板的功能稳定性。
需要指出的是，本申请中的触控走线200可以以现有的任意一种触控面板为原型，直接将该触控面板的触控走线200复制到基底100上，同时在基底100上设计与该触控走线200相匹配的各区域，此时需要注意的是，应当区分第一连接线210和第二连接线220，使得第一连接线210和第二连接线220分别对应设置在各区域内。
此外，第一连接线210由于其设置在拉伸率较低的区域，其不能够随着该拉伸率较低的区域而发生拉伸形变，或者仅有较小程度的拉伸形变，因此当将该第一连接线210作为可拉伸触控面板的外围走线线路时，可将其设置成简单的线型结构，例如直线型，由此大大节省可拉伸触控面板的外围走线空间，有利于释放出更多的功能区，此处可参考下文中的实施例一。
一般来说，第二连接线220为连接在各相邻的第一连接线210之间的线路，该第二连接线220与第一连接线210相连。
结合前文所述，由于第二连接线220设置在拉伸率较高的区域，此 时第二连接线220将会随着该拉伸率较高的区域而发生拉伸形变，因此为了使该第二连接线220具有较好的耐拉伸性能，该第二连接线220宜被构造成呈曲线线型或折线线型，使其在具有拉伸缓冲效果的条件下获得耐拉伸性能。
曲线线型可以包括正弦型、马蹄型及波浪型等其它各种造型，本申请对此不作穷举式描述。虽如此，本领域的技术人员及相关人员应当毫无障碍的根据实际情况而选择具体的曲线线型，例如下文中的实施例一和实施例二中的第二连接线220采用的曲线线型为正弦型。
当然，在某些实施例中，还可以通过改变第二连接线220的形成材料来使得其具有较好的耐拉伸性能。例如可选用一些耐拉伸的导电材料来制作第二连接线220，例如耐拉伸的铝合金材料或者耐拉伸的镍铝合金材料等。
通过前文所述，由于第一连接线210与第二连接线220的设置区域及其性能的差异化，使得第一连接线210与第二连接线220的线型、材料的选取及它们之间的组合具有多种选择模式。
例如，在某些实施例中，第一连接线210可选用不耐拉伸的导电材料(当然也可以选用耐拉伸的导电材料)，并将其线型设置成直线线型，而第二连接线220则选用耐拉伸的导电材料，而后再将两者连为一体。此时，第二连接线220可以采用直线线型或者曲线线型。
又如，在另一些实施例中，第一连接线210可选用不耐拉伸的导电材料(当然也可以选用耐拉伸的导电材料)，并将其线型设置成直线线型，而第二连接线220也选用不耐拉伸的导电材料，而后再将连为一体。此时，第二连接线220可以采用曲线线型。
在上述第一连接线210与第二连接线220采用同一种材料的实施例中，第一连接线210与第二连接线220可采用同一连接线，此时两者不 分彼此，为一体化连接线。例如下文中将要描述的实施例一和实施例二中的第二连接线220与第一连接线210采用的是同一种材料的连接线，但是它们具有不同的线型构造，第一连接线210为直线线型，而第二连接线220采用的则为曲线线型。而为了进一步获得较好的拉伸性能，第一连接线210与第二连接线220均可采用耐拉伸的导电材料形成。
另一方面，由于第一连接线210设置在拉伸率较低的区域，其无拉伸形变或者拉伸形变程度很小，此时在布置该第一连接线210时可采用现有技术方式直接将其附着在拉伸率较低的区域。而第二连接线220设置在拉伸率较高的区域，其会被拉伸，因此在布置该第二连接线220时可通过丝印、转移、喷涂或溅射等方式将其形成在拉伸率较高的区域。
本申请的申请人经过大量的研究和反复的实验得知，将单种或多种弹性材料和另外的单种或多种非弹性材料按不同比例共混形成基底100，或者将单种或多种弹性材料和另外的单种或多种弹性材料按不同比例共混形成基底100时，该基底100表现出以下的机械物理特性：拉伸强度基本一致，但是拉伸率会有明显差别。换言之，拉断基底100所需要的力是一致的，但是拉伸形变量会有明显不同。
例如，以两种弹性材料为例，进一步的以聚二甲基氧烷和液态硅橡胶为例，当它们按以下重量份共混时，表现出如图1所示的性能。
为了便于理解，现选取三种共混比例，分别如下：
A：聚二甲基氧烷：液态硅橡胶＝1:0.1～0.5；
B：聚二甲基氧烷：液态硅橡胶＝1:0.5～1；
C：聚二甲基氧烷：液态硅橡胶＝1:1～1.5。
对上述三种共混比例所形成的基底100进行拉伸断裂测试，拉伸断裂力基本上在100kpa附近，而拉伸形变量则有明显差别。其中，A拉伸形变量最小，C拉伸形变量最大，而B处于中间位置。
前文中的基底100正是基于上述理论而完成的，此时该基底100可包括至少一种弹性材料和至少一种非弹性材料，或基底100包括至少一种弹性材料和至少另一种弹性材料，例如可参考前述聚二甲基氧烷和液态硅橡的共混比例，将A设置成拉伸率较低的区域，而将C设置成拉伸率较高的区域。
具体在利用聚二甲基氧烷和液态硅橡胶的共混形成基底100时，可借助相应的模具来实现，将相应的配比的聚二甲基氧烷和液态硅橡胶注入到模具相应的区域，待固化成型后即可获得具有不同拉伸率的区域。
为了便于下文的描述，现将上文中的拉伸率较低的区域称为第一可拉伸区域110，而将拉伸率较高的区域称为第二可拉伸区域120。换言之，此时的基底100包括第一可拉伸区域110及第二可拉伸区域120，第一可拉伸区域110的拉伸率小于第二可拉伸区域120的拉伸率。
为了使得基底100具有多个可拉伸的方向，从而使得可拉伸触控面板具备多个方向的拉伸性能，第一可拉伸区域110和第二可拉伸区域120至少沿一个方向彼此间隔布置，而将第一连接线210设置在第一可拉伸区域110内，将第二连接线220设置在第二可拉伸区域120内。
下面通过具体实施例并结合附图对本申请作进一步详细说明。
实施例一
请参考图2-4，本实施例一所提供的可拉伸触控面板中的基底100的第一可拉伸区域110和第二可拉伸区域120沿长度方向彼此间隔布置，形成了一种自容式的可拉伸触控面板。
此时可以理解的是，当将第一连接线210设置在第一可拉伸区域110，并将第二连接线220设置在第二可拉伸区域120后即可形成可拉伸触控面板，该可拉伸触控面板在长度方向上具有拉伸性能。
具体而言，请结合参考图2及图4，第二连接线220采用正弦线型，在拉伸的过程中，第二连接线220会跟随着第二可拉伸区域120拉伸，继而实现整个可拉伸触控面板的拉伸性能。
第一连接线210不会跟随第一可拉伸区域110发生拉伸形变或者将仅有小程度的拉伸形变，此时第一连接线210可以受到很好的保护，使得第一连接线210的耐拉伸性能提升，而第一连接线210主要用于构建可拉伸触控面板的触控功能，因此可避免或降低由于拉伸形变对触控信号的影响，提高触控的精度。
在本实施例中，第一可拉伸区域110和第二可拉伸区域120均沿宽度方向延伸成条形结构，第二连接线220连接在设置于相邻的第一可拉伸区域110上的第一连接线210之间，并处于第二可拉伸区域120宽度方向的端部。
此时与前文相对应的，将第二连接线220布置在第二可拉伸区域120的端部可使得第二连接线220形成触控走线200的外围走线的一部分，此时可以知道的是，至少与第二连接线220相连的第一连接线210可以采用直线线型的构造，能够节省可拉伸触控面板的外围走线空间，有利于释放出更多的功能区。
接前文所述，在本实施例中，在第一可拉伸区域110的一侧设置有触控功能层，触控功能层图案化形成多个触控电极(触控传感图案300)，多个触控电极与第一连接线210电连接。
另外，在本实施例中，触控功能层可以呈滑条状。当然，在其它实施例中，该触控功能层还可以被设置成三角状或者其它形状等。
接前文所述，在第一可拉伸区域110上还设置有多个间隔排布的引脚400，多个引脚400通过触控走线200与触控电极一一对应，可拉伸触控面板通过引脚400与外部功能元件例如PCB等绑定接合。
至此，通过触摸触控功能层即可实现可拉伸触控面板的触控功能。
实施例二
请参考图5-8，与前述实施例一不同的是，本实施例二所提供的可拉伸触控面板中的基底100的第一可拉伸区域110和第二可拉伸区域120沿长度方向和宽度方向彼此间隔布置，此时可形成一种互容式的可拉伸触控面板，可以实现多点触控等复杂的触控功能。
本实施例中沿单个方向上的基底100及第一连接线210和第二连接线220的布置同前述实施例一，使得该可拉伸触控面板在长度和宽度方向上均具有拉伸性能。
在本实施例中，第一可拉伸区域110和第二可拉伸区域120沿长度方向或宽度方向延伸成方形结构，第二连接线220连接在设置于相邻的第一可拉伸区域110上的第一连接线210之间。
在本实施例中，第一连接线210和第二连接线220设置在基底100的两侧，且设置在基底100一侧的第一连接线210和第二连接线220与设置在基底100另一侧的第一连接线210和第二连接线220分别对应交叉布置。
由此，由于沿长度和宽度方向布置的第一连接线210和第二连接线220呈交叉状态，此时沿长度方向或沿宽度方向布置的第一连接线210和第二连接线220就构成了可拉伸触控面板的接收线路(RX线路)，而沿宽度方向或沿长度方向布置的第一连接线210和第二连接线220就构成了可拉伸触控面板的发送线路(TX线路)，上述两种线路在第一可拉伸区域110交叉且双向均可拉伸，因此它们不易因拉伸形变而出现偏移或者波动，此时也将提高触控性能的稳定性，基于此可以实现复杂的触控功能。
同前文中的实施例一，在本实施例中也设置有触控功能层，但与实施例一不同的是，本实施例中的触控功能层图案化后在第一可拉伸区域110两侧分别形成多个触控感应电极和多个触控驱动电极，多个触控感应电极与多个触控驱动电极在第一可拉伸区域110的两侧相对应设置以形成触控电极，触控电极与第一连接线210电连接。
此时由于该可拉伸触控面板在长度和宽度方向均能够被拉伸，但在拉伸的过程中，触控功能层不发生拉伸形变或仅有较小程度的拉伸形变，因此由该触控功能层所形成的触控传感图案300可以复杂化，以实现更复杂的触控功能，如多点触控。
同样同前文中的实施例一，本实施例在第一可拉伸区域110上也设置有多个间隔排布的引脚400，多个引脚400通过触控走线200与触控电极一一对应，可拉伸触控面板通过引脚400与外部功能元件例如PCB等绑定接合。
至此，通过触摸触控功能层即可实现可拉伸触控面板的触控功能。
可以理解的是，本实施例中虽然采用了单基底双面线路的设计方案，即以一个基底100为基础，而在基底100的两侧设置第一连接线210和第二连接线220，但是应当理解，还可以设置双基底双层线路的设计方案，即在一个基底100上设置沿长度方向的布置的第一连接线210和第二连接线220，在另一个基底100上设置沿宽度方向布置的第一连接线210和第二连接线220，通过这两个基底100的结合可以实现更加复杂的触控功能。
最后需要说明的是，还可以在实施例二的基础上在其厚度方向上增加彼此间隔布置的第一可拉伸区域110和第二可拉伸区域120，以使得可拉伸触控面板还具有沿厚度方向的拉伸性能。
另外需要说明的是，在前述实施例一和实施例二中，还可以在基底100的上方设置覆盖保护层500，用于对触控走线200即第一连接线210和第二连接线220进行保护。
该覆盖保护层500可以由弹性材料形成，例如可以采用类似于基底100的材料制成，使得覆盖保护层500能够随着基底100而进行拉伸形变。
当然，在其它实施例中，弹性材料可以根据需求自由选择，例如其可以采用橡胶或者硅胶等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (20)

  1. 可拉伸触控面板，其特征在于，包括：
    基底，所述基底形成有多个具有不同拉伸率的区域；及
    触控走线，所述触控走线包括第一连接线及与所述第一连接线相连的第二连接线，所述第一连接线设置在拉伸率较低的区域，所述第二连接线设置在拉伸率较高的区域。
  2. 如权利要求1所述的可拉伸触控面板，其特征在于，所述第一连接线呈直线线型。
  3. 如权利要求1所述的可拉伸触控面板，其特征在于，所述第二连接线呈曲线线型或折线线型。
  4. 如权利要求3所述的可拉伸触控面板，其特征在于，所述曲线线型包括正弦型、马蹄型及波浪型。
  5. 如权利要求1所述的可拉伸触控面板，其特征在于，所述第二连接线由耐拉伸的导电材料形成。
  6. 如权利要求1所述的可拉伸触控面板，其特征在于，所述第二连接线通过丝印、转移、喷涂或溅射的方式形成在所述拉伸率较低的区域。
  7. 如权利要求1-6中任一项所述的可拉伸触控面板，其特征在于，所述基底包括第一可拉伸区域及第二可拉伸区域，所述第一可拉伸区域的拉伸率小于所述第二可拉伸区域的拉伸率，所述第一可拉伸区域和所述第二可拉伸区域至少沿一个方向彼此间隔布置，所述第一连接线设置在所述第一可拉伸区域，所述第二连接线设置在所述第二可拉伸区域。
  8. 如权利要求7所述的可拉伸触控面板，其特征在于，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向彼此间隔布置。
  9. 如权利要求8所述的可拉伸触控面板，其特征在于，所述第一 可拉伸区域和所述第二可拉伸区域均沿宽度方向延伸成条形结构，所述第二连接线连接在设置于相邻的第一可拉伸区域上的所述第一连接线之间，并处于所述第二可拉伸区域宽度方向的端部。
  10. 如权利要求9所述的可拉伸触控面板，其特征在于，还包括设置在所述第一可拉伸区域一侧的触控功能层，所述触控功能层图案化形成多个触控电极，多个所述触控电极与所述第一连接线电连接。
  11. 如权利要求10所述的可拉伸触控面板，其特征在于，所述触控功能层呈滑条状。
  12. 如权利要求7所述的可拉伸触控面板，其特征在于，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向和宽度方向彼此间隔布置。
  13. 如权利要求12所述的可拉伸触控面板，其特征在于，所述第一可拉伸区域和所述第二可拉伸区域沿长度方向或宽度方向延伸成方形结构，所述第二连接线连接在设置于相邻的第一可拉伸区域上的所述第一连接线之间。
  14. 如权利要求13所述的可拉伸触控面板，其特征在于，还包括设置在所述第一可拉伸区域两侧的触控功能层，所述触控功能层图案化后在所述第一可拉伸区域两侧分别形成多个触控感应电极和多个触控驱动电极，多个所述触控感应电极与多个所述触控驱动电极在所述第一可拉伸区域的两侧相对应设置以形成触控电极，所述触控电极与所述第一连接线电连接。
  15. 如权利要求10或14所述的可拉伸触控面板，其特征在于，还包括设置于所述第一可拉伸区域的多个间隔排布的引脚，多个所述引脚通过所述触控走线与所述触控电极一一对应，所述可拉伸触控面板通过所述引脚与外部功能元件绑定接合。
  16. 如权利要求1所述的可拉伸触控面板，其特征在于，还包括覆盖在所述基底上方的覆盖保护层，用于对所述触控走线进行保护。
  17. 如权利要求16所述的可拉伸触控面板，其特征在于，所述覆盖保护层由弹性材料形成。
  18. 如权利要求1-6中任一项所述的可拉伸触控面板，其特征在于，所述基底包括至少一种弹性材料和至少一种非弹性材料，或所述基底包括至少一种弹性材料和至少另一种弹性材料。
  19. 如权利要求17所述的可拉伸触控面板，其特征在于，所述基底包括两种弹性材料，其中一种弹性材料为聚二甲基氧烷，另一种弹性材料为液态硅橡胶。
  20. 如权利要求19所述的可拉伸触控面板，其特征在于，按重量份计，所述基底包括：
    1重量份的聚二甲基氧烷；及
    0.1～1.5重量份的液态硅橡胶。
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