Utility model content
To solve the above problems, the utility model embodiment discloses touch-control structure and the touching for not allowing easy fracture after a kind of stretching
Control device.
A kind of touch-control structure, including flexible parent metal and the touch function layer being set on the flexible parent metal, the touch-control
Functional layer is made of elastic conducting material.
Further, the elastic conducting material be resin and conductive compositions composite material or rubber and it is conductive at
The composite material of the composite material or elastoplastic and conductive compositions that divide.
Further, the conductive compositions include Argent grain, copper particle, silver wire, carbon dust, graphene, carbon nanotube, 3,4-
At least one of the polymer of ethene dioxythiophene monomer, liquid metal, ionic liquid.
Further, the touch-control structure further includes circuit board and the touch control sensing circuit that is set on the circuit board,
The touch control sensing circuit and the touch function layer are electrically connected.
Further, the touch function layer includes multiple touch control units, and the touch-control structure further includes multiple set on institute
The connection cabling on flexible parent metal is stated, the connection cabling is electrically connected at corresponding touch control unit and the touch control sensing circuit
Between.
Further, the flexible parent metal includes main body and the extension that is extended to form by described main body one end, described more
A touch control unit is set to the main body, and one end of the connection cabling is electrically connected with the corresponding touch control unit, described
The other end for connecting cabling extends to the extension from the main body and is electrically connected with the touch control sensing circuit.
Further, the main body and the extension are integrally formed.
Further, the main body includes the bonding pad of functional areas and neighbouring function area edge setting, the multiple
Touch control unit is set to the functional areas, and the other end of the connection cabling extends to the extension from the bonding pad.
Further, the connection cabling is bent setting in the bonding pad and forms the first buffer part.
Further, the connection cabling is bent setting in the extension and forms the second buffer part.
Further, the touch-control structure further includes electric connector, and the electric connector is set on the circuit board, described
Touch control sensing circuit is electrically connected with the electric connector, and the one end of the connection cabling far from the touch control unit is grafting
End, the inserted terminal, which is plugged on the electric connector, is electrically connected the touch control sensing circuit by electric connector.
Further, the touch-control structure further includes enhancement layer, and the enhancement layer is set to the flexible parent metal far from described
The side of touch function layer.
Further, region bends setting of the connection cabling in the outer profile close to the flexible parent metal.
Further, the connection cabling is oscillating fiexural.
Further, along the direction of the outer profile towards the flexible parent metal, the connection cabling forms multiple alternatings
The wave crest and trough of distribution.
Further, the connection cabling is also bent setting in the region of the outer profile far from the flexible parent metal.
Further, the material that is made of the flexible parent metal includes thermoplastic polyurethane elastomer rubber, carbon-based rubber, silicon
At least one of rubber, organic siliconresin, macromolecule hydrogel.
Further, the flexible parent metal is identical as the order of magnitude of the tensile modulus of elasticity of the elastic conducting material.
Further, the touch-control structure further includes being set to the touch function layer far from the soft of the flexible parent metal side
Property encapsulated layer.
Further, the material that is made of the flexible package layer includes elastic polyurethane resin, thermoplastic polyurethane elastic
At least one of body rubber glue film.
A kind of touch device, including touch-control structure as described above.
Further, the touch device further includes flexible piece, and the flexible piece and the touch-control structure pass through adhesive layer
Bonding.
Further, the flexible parent metal includes main body and the extension that is extended to form by described main body one end, the touching
Control functional layer is set in the main body, and the extension includes multiple protrusions, and gap is formed between adjacent protrusion, described to prolong
The protruding apex of extending portion side adjacent with the flexible piece is Nian Jie with the flexible piece by adhesive layer.
Further, the adhesive layer is discontinuous distribution, and the adhesive layer is separated adjacent two protrusion.
Further, the stretching bullet of the flexible piece, the adhesive layer, the flexible parent metal, the elastic conducting material
The order of magnitude of property modulus is identical.
Further, the flexible piece is made of elastic textile material, and the touch device is wearable device.
Touch-control structure and touch device provided by the utility model, by the elastic conducting material in the flexible parent metal
Upper formation touch function layer can be improved the flexility and stretch-proof ability of touch function layer, reduce touch function layer because drawing
A possibility that stretching fracture.In addition, the laminated construction of touch-control structure is simple, be conducive to the lightening development of touch device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, Fig. 1 is a kind of structural schematic diagram for touch-control structure 10 that an embodiment of the present invention provides.Touching
Control structure 10 includes flexible parent metal 11 and the touch function layer 12 being set on flexible parent metal 11, and touch function layer 12 is by elastic conducting
Electric material is made.
In present embodiment, the material that is made of flexible parent metal 11 is thermoplastic polyurethane elastomer rubber
(Thermoplastic polyurethanes, TPU).It is appreciated that flexible parent metal 11 can also be by other flexible material systems
At so that flexible parent metal 11 is bent, stretchable, such as carbon-based rubber (such as latex, butadiene rubber, EP rubbers, nitrile rubber
Deng), silicon rubber, organic siliconresin (such as dimethyl silicone polymer (polydimethylsiloxane, PDMS)), SEBS (hydrogenation
Styrene-butadiene copolymer), EcoFlex (tetramethylene adipate-mutual-phenenyl two acid bromide two alcohol ester's copolymer), elastic water
At least one of gel.The elastic conducting material is the composite material of resin and conductive compositions.The elastic conducting material
For stretchable conductive mixed system, wherein the resin is continuous phase, stretchable, i.e., the described resin tool elasticity, and conductive compositions
For dispersed phase, it is able to carry out conduction.Touch function layer 12 made of the elastic conducting material is bent, stretchable.It is described to lead
Electric ingredient includes Argent grain, copper particle, silver wire, copper wire, carbon dust, graphene, carbon nanotube, PEDOT (EDOT (3,4- ethylene two
Oxygen thiophene monomer) polymer), liquid metal, at least one of ionic liquid.Resin and conductive compositions (such as conductive particle)
It can uniformly, steadily mix, and solid content can reach the resistance requirements of printed circuit, be led so that elastic conducting material can be formed
Electrically excellent touch function layer 12.In some embodiments, the elastic conducting material can be rubber and conductive compositions
Composite material.In some embodiments, the elastic conducting material may be the compound of elastoplastic and conductive compositions
Material.
In present embodiment, take conductive compositions and resin, be then added appropriate solvent carry out be mixed form the bullet
Property conductive material, the volume proportion proportional region of the resin and the conductive compositions is (1/8)~(1/3), by the elasticity
Conductive material is printed in the surface of flexible parent metal 11 by modes such as silk-screen, transfer, coining, inkjet printing, 3D printing, sputterings
On.It is appreciated that not limiting the ratio of the resin Yu the conductive compositions, the resin is mixed with the conductive compositions
Manufactured elastic conducting material being capable of stretchable and conduction.It preferably, can when the conductive compositions are mixed with resin
Mixed system is heated, while system is dispersed using ball mill or planetary mixer, makes system mixing more
Add uniformly, elastic conducting material of good performance can be obtained.
Touch function layer 12 is formed on flexible parent metal 11 by the elastic conducting material, can be improved touch function layer
12 flexility and stretch-proof ability reduces a possibility that touch function layer 12 is broken.In addition, the lamination knot of touch-control structure 10
Structure is simple, is conducive to the lightening development for having the touch device of touch-control structure 10.
Specifically, touch-control structure 10 further includes circuit board 14, touch control sensing circuit 15 and multiple connection cablings 16.Touch-control sense
Slowdown monitoring circuit 15 includes at least touch chip.Touch control sensing circuit 15 and its peripheral circuit are integrated on circuit board 14.This embodiment party
In formula, circuit board 14 is printed circuit board, and touch control sensing circuit 15 encapsulates (Chips on Board, COB) by chip on board
Mode be packaged on circuit board 14.Since touch control sensing circuit 15 being encapsulated on circuit board 14 rather than in flexible parent metal 11
On, can to avoid flexible parent metal 11 by encapsulation process temperature and pressure influenced, and then protect flexible parent metal 11 not by
To damage.Also, since existing FPC (flexible circuit board) is non-Stretch material, and flexible parent metal 11 is Stretch material,
Existing FPC binding (bonding) is such as directlyed adopt in will be since the tensile properties of the two are inconsistent and easy on flexible parent metal
The case where being damaged.Therefore, the present embodiment is also without using existing FPC as connection flexible parent metal 11 and circuit board 14
Medium, or using FPC as the binding region of chip, but directly connect flexible parent metal 11 with circuit board 14.
Touch function layer 12 is electrically connected by connection cabling 16 and touch control sensing circuit 15.
Flexible parent metal 11 further includes main body 113 and the extension 115 that is integrally extended to form by 113 one end of main body.Main body 113
Including functional areas 1131 and the bonding pad 1133 being arranged around functional areas 1131.Extension 115 is disposed adjacent with circuit board 14.This reality
It applies in mode, main body 113 and extension 115 are integrally formed.
Touch function layer 12 is graphically set to the functional areas 1131 of main body 113, for incuding touch location.Touch function
Layer 12 includes multiple touch control units 121 in array setting.Touch control unit 121 is in substantially banded structure, to improve touch control unit
121 stretch-proof ability.
Multiple connection cablings 16 are arranged at intervals on flexible parent metal 11.In present embodiment, each connection cabling 16 is electrically
It is connected between a touch control unit 121 and touch control sensing circuit 15.
Connection cabling 16 is electrically connected between touch control sensing circuit 15 and touch control unit 121, to realize touch control unit
121 with the electric connection of touch control sensing circuit 15.
Connection cabling 16 includes being formed in the first buffer part 161 of bonding pad 1133 and being formed in the second of extension 115
Buffer part 163.First buffer part, 161 one end is electrically connected with corresponding touch control unit 121, the other end of the first buffer part 161
The second buffer part 163 is extended to form to extension 115.The structure of first buffer part 161 is that bending is set to bonding pad 1133
Warp architecture, for buffering the stress that generates when touch-control structure 10 stretches, reduce a possibility that connection cabling 16 is pulled off and
There is a possibility that resistance value mutation.For example, in one embodiment, referring to Fig. 2, the structure of the first buffer part 161 is wave
Cable architecture.In another example in one embodiment, referring to Fig. 3, the structure of the first buffer part 161 is meander line structure.Implement one
In mode, the structure of the first buffer part 161 is trigonometric function curvilinear structures.It is appreciated that in one embodiment, the first buffering
The structure in portion 161 may include meander line structure, wave cable architecture, trigonometric function curvilinear structures, the i.e. structure of the first buffer part 161
It may include at least one of meander line structure, wave cable architecture, trigonometric function curvilinear structures.
The one end of second buffer part 163 far from touch control unit 121 and touch control sensing circuit 15 are electrically connected.It please refers to
Fig. 4, Fig. 4 are the diagrammatic cross-section of the partial region for the touch-control structure 10 that present embodiment provides.Extension 115 is substantially in wave
Shape, the bending for folding shape or fold shape, so that the extending direction along extension 115 has certain elastic deformation space.Prolong
Extending portion 115 includes multiple raised 1151, forms gap between adjacent protrusion 1151, for buffering production when touch-control structure 10 stretches
Raw stress.Second buffer part 163 is warp architecture, for buffering the stress generated when touch-control structure 10 stretches, reduces connection
A possibility that cabling 16 is pulled off and there is a possibility that resistance value mutation.For example, the structure of the second buffer part 163 is broken line knot
At least one of structure, wave cable architecture, trigonometric function curvilinear structures.Further, the warp architecture of the second buffer part 163 can
Be on the curved surface for be tightly attached to extension 115 and formed with the consistent warp architecture of 115 curved surface of extension, i.e., from
The curved surface of extension 115 and the warp architecture bending amplitude and angle of the second buffer part 163 are homogeneous from the point of view of the section of Fig. 4
It together, and is to be bent along the vertical direction.Certainly, the warp architecture of the second buffer part 163 is also possible to be formed in 115 table of extension
Face is bent along 115 left and right sides of extension or front and rear sides, or simultaneously includes above two warp architecture.
In one embodiment, the connection cabling 16 is set in the region bends of the outer profile close to the flexible parent metal 11
It sets.The connection cabling 16 is oscillating fiexural.The oscillating fiexural is that the connection cabling 16 forms multiple alternatively distributed waves
Peak and trough.Along the direction of the outer profile towards the flexible parent metal 11, the connection cabling 16 forms multiple be alternately distributed
Wave crest and trough.The connection cabling 16 is also bent setting in the region of the outer profile far from the flexible parent metal 11.
Touch-control structure 10 further includes electric connector 17.Electric connector 17 is set on circuit board 14 and and touch control sensing circuit
15 are electrically connected.Second buffer part 163 forms inserted terminal (PIN) 1631 far from one end of touch function layer 12.Inserted terminal 1631
It is plugged on electric connector 17, to realize the electric connection between touch control sensing circuit 15 and touch function layer 12.
Electric connector 17 includes the connecting pin (not shown) that corresponding inserted terminal 1631 is arranged.Since touch-control structure 10 passes through company
The inserted terminal 1631 for connecing cabling 16 is plugged on electric connector 17, so that the connection cabling 16 of touch-control structure 10 is without passing through binding
The electric connection between touch control sensing circuit 15 and touch function layer 12 can be realized, simplify the assembling system of touch-control structure 10
Journey, while flexible parent metal 11 being avoided, because high temperature is damaged, to improve product yield in binding.Further, since extension 115
Gap is formed between protrusion 1151, the impact that circuit board 14 is subject to when touch-control structure 10 stretches can be buffered, reduce circuit board 14
Impaired possibility also can be reduced inserted terminal 1631 because touch-control structure 10 is stretching when and be detached from the possibility of electric connector 17
Property, so that it is guaranteed that the performance of touch-control structure 10.Stated differently, since inserted terminal 1631 cannot bear stretching action, it is curved to prolong
Extending portion 115 can buffer touch-control structure 10 when stretching to the drawing force of inserted terminal 1631, the drawing for avoiding inserted terminal 1631 from being subject to
Stretch is excessive and the case where damage.
In present embodiment, the quantity of the connecting pin corresponds to the quantity of inserted terminal 1631, between the connecting pin between
Away from according to number of channels and connection cabling 16 be configured.The height of connecting pin setting confirms according to folded structure thickness, grafting
End 1631 and the electricity that connects of the splicing position of the connecting pin may be selected to connect formula or downward joint type.Inserted terminal 1631 and the connecting pin it
Between snap close mode direct insertion or cover-lifting type may be selected.
It is appreciated that being not construed as limiting to touch control sensing circuit 15 and the connection type of circuit board 14, for example, circuit board 14 can
For flexible circuit board, touch control sensing circuit 15 is set on circuit board 14 by flip chip (Chip On Flex, COF) mode,
The second buffer part 163 on flexible parent metal 11 is engaged in by way of binding with circuit board 14 together, realizes touch-control sensing electricity
The electric connection on road 15 and touch function floor 12.Since the second buffer part 163 is tied up on circuit board 14 with touch control sensing circuit 15
Fixed engagement, avoids influence of the flexible parent metal 11 in binding procedure by high temperature and pressure, so protect flexible parent metal 11 not by
To damage.
Touch-control structure 10 further includes enhancement layer 18.Enhancement layer 18 is set to one of flexible parent metal 11 far from touch function layer 12
Side, and it is located at opposite two sides with the second buffer part 163.Enhancement layer 18 is located on extension 115 and adjacent with circuit board 14 sets
It sets.Enhancement layer 18 is capable of providing the support of flexible parent metal 11, enhances the intensity of flexible parent metal 11, inserted terminal 1631 is facilitated to be plugged in electricity
On connector 17.It is appreciated that enhancement layer 18 can be only arranged at the partial region adjacent with circuit board 14 of extension 115, add
Strong layer 18 can also cover the whole region of extension 115.In present embodiment, the material that is made of enhancement layer 18 is polypropylene
(polypropylene, PP).In other embodiments, the material that is made of enhancement layer 18 can be other materials, for example, plus
Strong layer 18 be made material include PP, polyvinyl chloride (Polyvinyl chloride, PVC), polyimides (Polyimide,
PI), polyphenylene sulfide (Phenylene sulfide, PPS), epoxy resin board, phenolic resin plate, fiber, steel disc, pottery
At least one of tile, quartz plate.
Referring to Fig. 5, in one embodiment, touch-control structure 10 further includes being set to the touch function layer 12 far from flexible
The flexible package layer 19 of 11 side of substrate, for being packaged protection to touch function layer 12.Touch function layer 12 is located at flexibility
Between encapsulated layer 19 and flexible parent metal 11.Flexible package layer 19 is made of stretchable resin or stretchable membrane material.Flexible package layer
19 of stretchable resin when being made, and can be prepared on flexible parent metal 11 by modes such as coating, spraying, chemical depositions and cover touching
Control functional layer 12.When flexible package layer 19 is made of stretchable membrane material, flexible package layer 19 can pass through hot pressing, blow pressure, injection molding etc.
Mode is prepared on flexible parent metal 11 and covers touch function layer 12.The material that is made of flexible package layer 19 includes elastic polyurethane
At least one of resin, TPU glue film.
In present embodiment, the number of the tensile modulus of elasticity of flexible parent metal 11, touch function layer 12 and flexible package layer 19
Magnitude is identical, realize mechanical property on have matching, to avoid be easy to appear in the drawing process of touch-control structure 10 delamination,
Phenomena such as removing, causes touch-control structure 10 to fail.
Referring to Fig. 6, the utility model also provides a kind of touch device 100, including it is touch-control structure as described above 10, viscous
Close layer 70 and flexible piece 80.Flexible piece 80 is adhered to together with touch-control structure 10 by adhesive layer 70.In present embodiment, bonding
Layer 70 is optical cement.In other embodiments, adhesive layer 70 can be other glue-lines, such as adhesive layer 70 can for hot melt adhesive,
At least one of double-sided adhesive, optical cement, liquid glue;The applying method of touch-control structure 10 and flexible piece 80 can be hot melt adhesive heat
Overlay conjunction, double-sided adhesive, optics glue bond, liquid glue bond.
Extension 115 and adhesive layer 70 pass through adhesive layer 70 on the top 1155 of protrusion 1151 and flexible piece 80 and are bonded in one
It rises.In other words, extension 115 and the top 1155 of the protrusion 1151 of the adjacent side of flexible piece 80 are Nian Jie with flexible piece 80,
He then separates with flexible piece 80 part, so that extension 115 is bonded in together with folded state and the fixation of flexible piece 80, avoids inserting
End or the circuit board 14 extended portion 115 when touch device 100 stretches is met to pull.Further, adhesive layer 70 extends corresponding
The position in portion 115 can also be discrete distribution (discontinuous distribution), referring to Fig. 7, i.e. adhesive layer 70 is only defined corresponding extension
115 1151 position of protrusion, protrusion 1151 between position be not distributed then, interruption of the adhesive layer 70 in adjacent two protrusion 1151
It opens.The adhesive layer 70 of such discrete distribution is more conducive to promote the tensile resistance of adhesive layer 70.Extension 115 can be along stretching
Direction 700 is folded.
In present embodiment, the tensile elasticity mould of material is made in each layer of flexible piece 80, adhesive layer 70 and touch-control structure 10
The order of magnitude of amount is identical, match each layer can in mechanical property, is easy to avoid in the drawing process of touch device 100
There is phenomena such as delamination, removing, touch device 100 is caused to fail.Flexible piece 80 is made of elastic textile material, the touch-control dress
100 are set as wearable device, such as clothes.In other embodiments, flexible piece 80 can also be other materials, such as leather etc.
Has certain flexible material.
Touch-control structure 10 and touch device 100 provided by the utility model, by the elastic conducting material described soft
Property substrate 11 on form touch function layer 12, can be improved the flexility and stretch-proof ability of touch function layer 12, reduce touching
A possibility that control functional layer 12 is broken due to stretching because bending.In addition, the laminated construction of touch-control structure 10 is simple, be conducive to touch-control dress
Set 100 lightening development.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it is considered as the protection scope of the utility model.