CN103135865A - Touch control module and preparation method thereof - Google Patents
Touch control module and preparation method thereof Download PDFInfo
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- CN103135865A CN103135865A CN2011103871689A CN201110387168A CN103135865A CN 103135865 A CN103135865 A CN 103135865A CN 2011103871689 A CN2011103871689 A CN 2011103871689A CN 201110387168 A CN201110387168 A CN 201110387168A CN 103135865 A CN103135865 A CN 103135865A
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Abstract
The invention relates to a touch control module. The touch control module comprises a touch control component, a shell body and a decorative membrane, wherein the shell body is curved, and is provided with a curved touch area, the touch area is covered by the touch control component, and is used for controlling the touch control component in a touch control mode, and the touch control component, the shell body and the decorative membrane are integrally formed. The invention further relates to a preparation method of the touch control module. The preparation method of the touch control module is mainly used for preparing the touch control module by combining an in-module decorating manufacture procedure and a double-faced membrane coating technology.
Description
Technical field
The present invention relates to a kind of touch module and preparation method thereof, relate in particular to a kind of touch module with touch controllable function and preparation method thereof.
Background technology
In recent years, be accompanied by the diversified development of the electronic equipment with touch controllable function, the curved surface appearance design of 2.5 dimensions (2.5D) or 3 dimensions (3D) is moved towards in this appearance design with electronic equipment of touch controllable function gradually.Yet, if existing touch technology will meet the product design demand of curved surface, all have challenge greatly on material and processing procedure.
At first from material, no matter existing touch-screen is resistance type touch control screen or capacitance type touch control screen, all adopt ITO as transparency conducting layer.Yet, due to ITO this as hard brittle material, bending resistance is not good, therefore, easily produces damage and cause the not good problem of electric conductivity when carrying out Machining of Curved Surface.
From processing procedure, if existing capacitance type touch control screen will carry out Machining of Curved Surface, need to first carry out the applying of ITO transparency conducting layer and bend glass substrate, and then be attached at the hard processing procedure of hard subsides on the cover plate (Cover Lens) of electronic equipment.With hard to paste two sections yields of hard processing procedure extremely low, the production of electronic equipment that therefore has curved surface and touch controllable function is poor, thereby makes production cost higher due to bend glass processing.
Summary of the invention
In view of this, the necessary a kind of touch module with curved surface and touch controllable function and preparation method thereof that provides, this touch module are still not three-dimensional, and have touch controllable function, and production cost is also lower.
A kind of touch module, it comprises: a touch control component, a housing and a decorating film.Wherein, this housing is bending, and has the touch area of a bending, and described touch control component covers this touch area, and this touch area is used for this touch control component of touch-control; And this touch control component, housing and decorating film are one-body molded.
A kind of preparation method of touch module, it comprises the following steps: a touch control component, a decorating film and a mould are provided, and wherein, this touch control component is a flexible member, and this mould comprises a master mold and a male model; Described touch control component and decorating film are individually fixed in described master mold and described male model; Matched moulds, and inject an injecting forming material and carry out injection moulding in described mould, make this injecting forming material form a housing, thereby form described touch module; And the demoulding, take out described touch module.
Compared with prior art, touch module provided by the invention has the following advantages: the housing in described touch module is bending, and described touch control component covers the touch area on this crooked housing, and this touch control component, housing and decorating film are one-body molded, make this touch control component and described decorating film be securely fixed on crooked housing, so this touch module not only have three-dimensional outward appearance and also have simultaneously touch controllable function.In addition, the preparation method of touch module provided by the invention integrates in-mold decoration forming processing procedure and two-sided film-coating technique, together utilize the in-mold decoration forming processing procedure to make simultaneously to form described touch module described touch control component and decorating film, make the preparation method of this touch module fairly simple, and cost compare is low.
Description of drawings
Fig. 1 is the schematic diagram of the touch module that provides of the embodiment of the present invention.
Fig. 2 is that the embodiment of the present invention is along the diagrammatic cross-section of the III-III line in Fig. 1.
Fig. 3 is touch control component in Fig. 1 and the structural representation of decorating film.
Fig. 4 to Fig. 7 is the preparation flow schematic diagram of the touch module of the embodiment of the present invention.
The main element symbol description
| Mould | 100 |
| |
110 |
| Die cavity | 112 |
| |
120 |
| Injection hole | 122 |
| |
20 |
| |
210 |
| |
212 |
| |
214 |
| The |
216 |
| The |
218 |
| Flexible PCB | 219 |
| |
220 |
| The |
222 |
| Decorating |
230 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
The invention provides a kind of touch module with curved surface, this touch module comprises a touch control component, a housing and a decorating film.Wherein, described housing is bending, and integral body is bending.This housing has the touch area of a bending, and described touch control component covers this touch area, and this touch area shows the display page of the electron device that uses this touch module simultaneously in order to this touch control component of touch-control.This touch control component, housing and decorating film are one-body molded.
Described touch module is three-dimensional, has 2.5 dimensions (2.5D) or 3 dimension (3D) structures.This touch module can be shell or the user oriented collection touch control component of the electron devices such as shell of the contact panel that Japan's description printing studies three-dimensional shape and the module of housing of the cover plate of mobile phone, automobile-used integration navigational system.
Described housing can be arcuation or the case of bending such as step-like, and making this housing is non-flat structure, has 2.5D or 3D structure, thereby makes this housing show the curved surface outward appearance.Described touch area is arranged on the knee of this housing, makes this touch area also be arcuation or the case of bending such as step-like.This housing has an outside surface and one and the inside surface that is oppositely arranged of this outside surface, and its outer surface is the surface towards the user; The outside surface of the touch area of this housing and inside surface are respectively the part of outside surface and the inside surface of described housing.Described touch control component can be fitted respectively with described decorating film and is arranged on the both sides that described housing is oppositely arranged, wherein this touch control component is fitted and is arranged on the inside surface of described housing, and fit with the inside surface of this touch area and arrange, this decorating film is fitted in the outside surface of this housing, thereby makes this housing be fixed between this touch control component and decorating film.Be appreciated that this touch control component also can be arranged at the outside surface of this housing, make this touch control component be fixed between this housing and this decorating film.
This housing can be the shell of the electron devices such as mobile phone, navigating instrument, bearing circle.The material of described housing can be the transparent materials such as polystyrene (PS), polycarbonate (PC) or polymethylmethacrylate (PMMA); Also can be colour or the opaque plastics such as acrylonitrile-butadiene-styrene copolymer (ABS), polyethylene terephthalate (PET), polycarbonate/acrylonitrile-butadiene-phenylethene copolymer blend (PC/ABS), polycarbonate/polybutylene terephthalate blend (PC/PBT), polycarbonate/polyethylene terephthalate blend (PC/PET), polycarbonate/polymethylmethacrylate blend (PC/PMMA) or polyamide (PA).The material of described housing and thickness can be selected according to actual needs, as, when being transparent, the material of this housing can be PMMA when the described housing of needs.Wherein, when described housing was transparent material, this touch module can be used for display device.When described housing is colored or during opaque material, this touch module can be used for the electron device that bearing circle etc. need not show.
Described touch control component and described housing are one-body molded, and the edge of this touch control component is coated by this housing, make this touch control component be securely fixed on described housing.Particularly, because this touch area is case of bending, this touch control component is a flexible unit, so this touch control component is along with the variation of the form of this touch area covers this touch area, thereby make this touch control component be fixed on touch area on this housing around, also make this touch control component be case of bending in this touch module, and the kenel variation tendency of this touch control component in this touch module is basic identical with the metamorphosis trend of touch area.As, when the touch area of described housing was arcuation, this touch control component was along with the arc variation tendency of this touch area covers this touch area, and be fixed on this touch area around, thereby make this touch control component also be arcuation in this touch module.When the touch area of this housing is stepped, this touch control component along with the variation tendency of the state of touch area be fixed on this touch area around, thereby make this touch control component also stepped in this touch module.
Described touch control component is condenser type carbon nano-tube touch sensor.This touch control component comprises a carbon nanotube layer and at least two electrodes that are electrically connected to this carbon nanotube layer, and this carbon nanotube layer is near described decorating film setting.This carbon nanotube layer is main as transparency conducting layer in this touch control component, and therefore, this carbon nanotube layer covers the touch area of described housing.This carbon nanotube layer comprises a plurality of carbon nano-tube; Preferably, these a plurality of carbon nano-tube preferred orientation are in the same direction extended, and the carbon nano-tube that the carbon nano-tube on same bearing of trend is adjacent joins end to end by Van der Waals force.Wherein, described carbon nanotube layer comprises at least one carbon nano-tube film.When described carbon nanotube layer comprises a plurality of carbon nano-tube film, this carbon nano-tube film can parallel and the coplanar setting of gapless or stacked setting, and the carbon nano-tube in these a plurality of carbon nano-tube films is arranged of preferred orient substantially in the same direction, and namely the orientation of the carbon nano-tube in adjacent carbon nano-tube film is basically identical.Because the carbon nano-tube in this carbon nano-tube film has good pliability, make this carbon nano-tube film have good pliability, can become arbitrary shape and be difficult for breaking by bending fold; And still has transparency and electric conductivity preferably.The thickness of described carbon nanotube layer is 0.5 nanometer ~ 100 micron; Preferably, the thickness of this carbon nanotube layer is 100 nanometers ~ 200 nanometers.This carbon nanotube layer has a desirable penetrability, and the visible light transmissivity of single-layer carbon nano-tube film is greater than 85%, and in this carbon nanotube layer, the number of plies of carbon nano-tube film is not limit, as long as can have desirable penetrability.
Described at least two electrodes are arranged at the surface of this carbon nanotube layer, and are electrically connected to these at least two electrodes.The material of described electrode is metal, carbon nano-tube, conductive silver paste or other conductive materials, as long as guarantee that this electrode can conduct electricity.Preferably, the material of this electrode is carbon nano-tube or conductive silver paste; Wherein, the impact that the electric conductivity of carbon nano-tube and conductive silver paste is bent hardly or the impact that is bent are smaller, and are flexible material.
Described touch control component further comprises a flexible substrates, and described carbon nanotube layer is arranged at the surface of this flexible substrates.This carbon nanotube layer is near described decorating film setting, and described flexible substrates is away from described decorating film setting, and is used for supporting described carbon nanotube layer and described at least two electrodes.The material of this flexible substrates is the material with characteristics such as flexibility, high temperature resistant and electrical isolations, can be the materials such as the polyester materials such as polycarbonate (PC), polymethylmethacrylate (PMMA) or polyethylene terephthalate (PET), or polyethersulfone (PES), cellulose esters, Polyvinylchloride (PVC), benzocyclobutene (BCB) or acryl resin particularly.Preferably, the material of this flexible substrates is the transparent flexible materials such as PMMA or PC.
Described touch control component can further include a flexible PCB, and this flexible PCB is arranged at a side of described carbon nanotube layer and is electrically connected to described at least two electrodes, is used for being electrically connected to other unit, makes this touch control component work.
Be appreciated that described touch control component can also increase other functional layer in position, as screen layer, protective seam etc.
Described decorating film is mainly used in identifying this touch module, makes this touch module have certain pattern or color, thereby reaches the outward appearance that makes this touch module have create an aesthetic feeling, can also show that this touch module realizes the key icon of various function touch-controls and brand etc.So the form of this decorating film of outside surface setting of the corresponding described housing of this decorating film should with the homomorphosis of the outside surface of described housing, and change along with the variation of the form of the outside surface of this housing.This decorating film is arranged on the surface of described touch module, for the direct visual surface of user, so this decorating film makes described housing avoid the function of wearing and tearing and scratching in addition.This decorating film can also comprise the metallic diaphragm that methods such as utilizing vacuum vapour deposition, vacuum splashing and plating method forms, and this decorating film can make described touch module surface present metallic luster.Wherein, when this touch module was applied in display device, the part that this decorating film is corresponding with the touch area of described housing should be transparent, so that the user sees the display page of display device; Other zone of this decorating film can be designed to the color of needs.
Touch control component in described touch module and decorating film are one-body molded by described injecting forming material, and this injecting forming material forms housing, and therefore, described touch control component and decorating film can be securely fixed on described housing simultaneously.In addition, because described touch control component has touch controllable function, so this touch module also has touch controllable function.In addition, because described touch control component is flexible, bent, so this touch module is three-dimensional, have 2.5 dimensions or 3 dimension structures.Therefore, this touch module can both have touch controllable function, had again spatial structure.
The present invention further provides a kind of preparation method of above-mentioned touch module, this preparation method prepares described touch module in conjunction with in-mold decoration processing procedure and two-sided film-coating technique.Particularly, this preparation method comprises the following steps: a, described touch control component, described decorating film and a mould are provided, and this mould comprises a master mold, a male model; B is individually fixed in described master mold and described male model with described touch control component and decorating film; C, matched moulds injects an injecting forming material and carry out injection moulding in described mould, forms described touch module; And d, described touch module is taken out in the demoulding.
In step a, the master mold in described mould and male model matched moulds form a die cavity, and this die cavity is used for placing described touch control component and decorating film.The concrete structure of this mould is relevant with the structure of required touch module, can mould according to the structure fabrication of described touch module, and especially can be according to the structure fabrication mould of described shell.Be formed with an injection hole on described male model, be used for injection material to be formed is injected in this die cavity.The shape of this die cavity should with the form fit of this touch module.
This master mold is the die joint of this master mold towards the surface of described male model, the die joint of this master mold has a selection area, this selection area is used for the zone of fixing described touch control component, the selection area of this master mold die joint be used for the shape in zone of fixing described touch control component and structure should with the form fit of described touch control component, in order to described touch control component is fixed on the die joint of this master mold.
Described male model is provided with the injection hole that runs through this male model, is used for the injection material of molten condition is injected in described die cavity.Preferably, this injection hole near the edge setting of die cavity, is formed on the non-touch area of described housing with the stub bar that guarantees injection moulding formation in this die cavity, substantially do not affect the electric conductivity of the carbon nanotube layer in described touch control component.Be appreciated that this mould can have a plurality of injection holes.This male model is the die joint of this male model towards the surface of described master mold, the die joint of this male model has a selection area, the form fit of the shape of the selection area of this male model die joint and structure and described decorating film is for this decorating film being fixed on the die joint of this male model.The die joint of this male model and the die joint of described master mold are oppositely arranged, and can form described die cavity.
Described mould may further include one first film feeder, and this first film feeder comprises a pair of film delivery wheel and a pair of angle sheave.Described a pair of film delivery wheel is divided into the upper and lower sides of mould, is used for drawing described decorating film, this decorating film is sent in the die cavity of described mould.Described angle sheave is used for the direction of transfer of this decorating film of guiding.
Step b is for to be fixed to described touch control component on the selection area of described master mold, and the flexible substrates of this touch control component is fitted in the selection area of master mold; And described decorating film is fixed on the selection area of described male model.Wherein, described touch control component can be fixed on the selection area of described master mold by the method for vacuum suction.
Described decorating film can be sent to by described the first film feeder the selection area of male model, particularly, adopt described the first film feeder described decorating film of traction and make this decorating film deliver between this male model and master mold and be located on the die joint of male model along the die joint of described male model, making decorating film be fitted in the selection area of the die joint of this male model 120.
Described mould also further comprises one second film feeder.The structure of this second film feeder is identical with the structure of the first film feeder, described touch control component can be sent to by this second film feeder the selection area of master mold, particularly, described touch control component is under the traction of this second film feeder, be sent to the selection area of this master mold along described master mold die joint, this touch control component is securely fixed on the selection area of this master mold.
Step c specifically comprises the following steps: at first, merge described male model and master mold and form described die cavity.Secondly, fill described injecting forming material, this injecting forming material is injected in described die cavity by the injection hole of male model, until this injecting forming material fills up this die cavity fully; Be fixed on the described decorating film on described male model die joint and be fixed on the surface that touch control component on described master mold die joint adheres to described injecting forming material simultaneously.Then, cooling this injecting forming material makes this injecting forming material form described housing, thereby forms touch control component, housing, the integrated touch module of decorating film.Wherein, described injecting forming material is the starting material of described housing.
When described decorating film transmitted by described the first film feeder, under the extruding of the die joint of described male model, the decorating film that adheres to described injecting forming material surface downcut from this first film feeder, make its with the first film feeder on the decorating film disengaging.
Steps d ejects described touch module for opening described male model and master mold, can obtain the touch module that the surface is attached with respectively decorating film and touch control component.
Because described touch control component comprises a carbon nanotube layer, this carbon nanotube layer has pliability preferably, can be coiled material, this touch control component is a flexible member, thus can adopt volume to volume processing procedure (roll-to-roll) that this touch control component is provided, therefore, the second film feeder that described mould provides can supply described touch control component by Quick, thereby can reach the described touch module of quick production, enhance productivity and reach, the purpose that reduces production costs.Because described carbon nanotube layer has anti-bending preferably, high pressure resistant, high temperature resistant, stable in properties and the stronger characteristic of surface abrasion ability, so in the employing said method prepares the process of this touch module, this carbon nanotube layer is not damaged substantially, still has electric conductivity preferably; Through 285 ℃, after 700 atmospheric pressure, still have flexibility, its surface does not have breakage substantially as, this carbon nanotube layer, electric conductivity does not have significant the variation substantially; Therefore, this touch module has touch controllable function.This touch module adopts the method for injection molding in mold and two-sided coating when making the described housing of formation, again described touch control component and decorating film together is fixed on housing, and therefore, the preparation method of this touch module is fairly simple.Separately, because described touch control component is flexible, so the yield of this touch module is relatively high.
Below in conjunction with the accompanying drawings and the specific embodiments, touch module provided by the invention and preparation method thereof is described in further detail.
See also Fig. 1 to Fig. 2, the embodiment of the present invention provides a touch module 20, and this touch module 20 comprises a touch control component 210, a housing 220 and a decorating film 230.Wherein, described housing 220 is arranged between described touch control component 210 and decorating film 230, and this touch control component 210 and decorating film 230 are one-body molded, and this touch control component 210 around coated by this housing 220.Particularly, in the injection molding process of described housing 220, this touch control component 210 and decorating film 230 are fixed on this housing 220 simultaneously.
In the present embodiment, described touch module 20 is a mobile phone protecgulum.Described housing 220 overall appearance are arcuation.This housing 220 comprises that one is the touch area 222 of arcuation, and this touch area 222 is positioned at the middle part of this housing 220, and described touch control component 210 covers the inside surface of this touch area 222, and this touch area 222 is used for the described touch control component 210 of touch-control.This touch area 222 is arc structures that the straight line by the arc of two opposing parallel settings and two opposing parallel settings surrounds.The material of this housing 220 is transparent PMMA.Described touch control component 210 is a flexible capacitance type touch control component, this touch control component 210 be fixed on along with the variation of the form of the touch area 222 of this housing 220 this housing 220 inside surface touch area 222 around.
See also Fig. 3, described decorating film 230 is arranged on the outside surface of described housing 220, and the part that this decorating film 230 is corresponding with the touch area 222 of described housing 220 is transparent, and the other parts of this decorating film 230 are mainly black, and is printed with the brand XXX of this mobile phone.Described capacitive touch control element 210 comprise a PET substrate 212, a carbon nanotube layer 214, two the first electrodes 216, two the second electrodes 218 and with a flexible PCB 219.This carbon nanotube layer 214 is fitted and is arranged at the surface of this substrate 212, and covers described touch area 222, as the transparency conducting layer of this touch control component 210.Described two the first electrodes 216 and two the second electrodes 218 are arranged at intervals at respectively the edge of described carbon nanotube layer 214.Described flexible PCB 219 is electrically connected to described carbon nanotube layer 214 by described two the first electrodes 216 and two the second electrodes 218.Wherein, these two the first electrodes 216 and two the second electrodes 218 all have conductive silver glue to consist of, so these two the first electrodes 216 and two the second electrodes 218 also have flexibility, and can the bending along with the metamorphosis of the inside surface of housing 220.
Described carbon nanotube layer 214 is the single-layer carbon nano-tube film, and this carbon nanotube layer is a self supporting structure.This carbon nanotube layer 214 comprises a plurality of carbon nano-tube that are parallel to each other and axially are arranged of preferred orient in the same direction.The direction that most of carbon nano-tube in this carbon nanotube layer 214 is extended along carbon nano-tube joins end to end and axially substantially extends along same direction preferred orientation.Further, this carbon nanotube layer 214 comprises a plurality of carbon nano-tube bundles that are arranged of preferred orient in the same direction, and this carbon nano-tube bundle has the basic length that equates and is arranged in end to end continuous carbon nanotube layer.
Because described carbon nano-tube has good electric conductivity along the axial direction that is parallel to carbon nano-tube, and axially substantially extending along same direction of the carbon nano-tube in this carbon nanotube layer 214, therefore, the resistance of the axial direction of the carbon nano-tube of described carbon nanotube layer 214 is much smaller than other directions, and this direction is defined as the Low ESR direction.In the present embodiment, described two the first electrodes 216 arrange perpendicular to the Low ESR direction.This carbon nanotube layer 214 perpendicular to the resistance of the axial direction of carbon nano-tube much larger than other directions, so this direction can be defined as a high impedance direction further.In addition, in most of carbon nano-tube of extending substantially in the same direction in described carbon nanotube layer 214, each carbon nano-tube joins end to end by Van der Waals force with carbon nano-tube adjacent on bearing of trend, and also there is the carbon nano-tube of minority random alignment in described carbon nano-tube film, the carbon nano-tube of these random alignment can be in contact with one another with other adjacent carbon nano-tube, thereby make this carbon nanotube layer 214 still have electric conductivity in the high impedance direction, just larger at the resistance of this high impedance direction compared to this carbon nanotube layer of other directions, conductivity is lower.Described two the second electrodes 218 arrange perpendicular to the high impedance direction.Described two the first electrodes 216 and two the second electrodes 218 are to form by four limit printing conductive elargol at described carbon nanotube layer 214.
See also Fig. 4 to Fig. 7, the invention provides a kind of method for preparing above-mentioned touch module 20, the method comprises the following steps:
(S100) provide described touch control component 210, described decorating film 230 and a mould 100, this mould 100 comprises a master mold 110 and a male model 120; (S200) described touch control component 210 and decorating film 230 are individually fixed in described master mold 110 and male model 120; (S300) inject the PMMA material in the interior injection moulding of described mould 100, form described mobile phone protecgulum touch module 20; And (S400) demoulding, take out described mobile phone protecgulum from described mould 100.
In step S100, see also Fig. 4, the concrete structure of this mould 100 is relevant with the structure of required touch module, can mould 100 according to the structure fabrication of described touch module.This master mold 110 forms a die cavity 112 with male model 120 matched moulds, and this die cavity 112 is used for fixing described touch control component and decorating film.Be formed with an injection hole 122 that runs through this male model 120 on described male model 120, be used for injection material PMMA to be formed is injected in this die cavity 112, this injection hole 122 is arranged on the edge of described die cavity 112, be formed on the non-touch area of described housing 220 with the stub bar that guarantees PMMA injection moulding formation, substantially do not affect the electric conductivity of described carbon nanotube layer.Wherein, the shape of the master mold 110 of described mould 100 and male model 120 and structure are complementary with the shape of described touch control component 210 and decorating film 230 respectively.Described mould 100 also comprises one first film feeder (not shown) and one second film feeder (not shown).
See also Fig. 5, step S200 comprises the following steps particularly: adopt described the first described decorating film 230 of film feeder traction, and this decorating film 230 is delivered between this male model 120 and master mold 110 along the die joint of described male model 120, and be fixed on male model 120, make this decorating film 230 be fitted in the die joint of this male model 120; And adopt described the second film feeder to draw described touch control component 210, and this touch control component 210 is delivered between this master mold 110 and male model 120 along the die joint of described master mold 110, and be fixed on the die joint of master mold 110, make the PET substrate 212 of this touch control component 210 be fitted in the die joint of this master mold 110.
Seeing also Fig. 6 step S300 specifically comprises the following steps: at first, merge described male model 120 and master mold 110.Secondly, inject PMMA, fill up described die cavity 112 by the injection hole 122 injection moulding PMMA to PMMA of male model 120; The described decorating film 230 and the described touch control component 210 that are attached in die cavity 112 adhere to the PMMA surface.Then, stop injecting PMMA, and cooling.
In the process that merges described master mold 110 and male model 120, under the extruding of described master mold 110 and the die joint of described male model 120, the touch control component 210 of PMMA housing 220 two sides that adheres to described touch module 20 is cut with decorating film 230, and respectively with the second film feeder on touch control component and the decorating film on the first film feeder break away from.
See also Fig. 7, step S400 is specially: open described male model 120 and master mold 110, the touch module 20 of described mobile phone protecgulum is ejected, can obtain the mobile phone protecgulum that the surface is attached with respectively decorating film 230 and touch control component 210.
The carbon nanotube layer 214 of the touch control component 210 in the touch module 20 for preparing by said method is not sustaining damage through after High Temperature High Pressure, so the correlated performance of this carbon nanotube layer 214 does not have significant the variation substantially, as, the square resistance of described carbon nanotube layer 214 changes not quite before and after through the in-mold decoration processing procedure, so the conductive characteristic of this carbon nanotube layer 214 does not have significant the variation yet.Described two the first electrodes 216 and two the second electrodes 218 are conductive silver glue, through basic not damage after above-mentioned in-mold decoration processing procedure, still have good electric conductivity.Described flexible PCB 219 is not damaging through basic after above-mentioned in-mold decoration processing procedure yet.Therefore, the touch controllable function of described touch control component 210 is not subjected to the impact of in-mold decoration processing procedure substantially, and described touch module 20 has touch controllable function.
Touch module that the embodiment of the present invention provides and preparation method thereof has the following advantages: first, the method that the touch module that the embodiment of the present invention provides mainly adopts injection molding in mold and two-sided coating make form described have crooked housing in, again described touch control component and decorating film are fixed on this housing together, therefore, the preparation method of this touch module is fairly simple, can realize pad pasting on curved surface, and the yield of product is higher, is conducive to reduce costs.Separately, the method of injection molding in mold can be so that described housing be bending, described touch control component and decorating film are flexible member, this touch control component covers the touch area on this crooked housing, and this touch control component, housing and decorating film are one-body molded, makes this touch control component and described decorating film be securely fixed on crooked housing, so, this touch module can be not only curved surface, has the outward appearance of spatial structure and create an aesthetic feeling, also has touch controllable function.The second, described touch control component is flexible member, and it can be coiled material, can adopt the volume to volume processing procedure rapidly for described mould provides described touch control component, thereby further reach the purpose that reduces production costs.The 3rd, described carbon nanotube layer is after the above-mentioned in-mold decoration forming processing procedure of process, and its electric conductivity does not have significant the variation substantially, and the performance of other ingredient in this touch control component is not subjected to the impact of this in-mold decoration forming processing procedure substantially yet.Therefore, described touch control component still has touch controllable function after processing through in-mold decoration forming, so this touch module has touch controllable function, makes and uses the electron device of this touch module to have touch controllable function.
In addition, those skilled in the art can also do other and change in spirit of the present invention, and the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (18)
1. touch module, it comprises: a touch control component, a housing and a decorating film is characterized in that, this housing is bending, and the touch area with a bending, described touch control component covers this touch area, and this touch area is used for this touch control component of touch-control; And this touch control component, housing and decorating film are one-body molded.
2. touch module as claimed in claim 1, is characterized in that, described touch control component and described decorating film are fitted and be arranged on the both sides that described housing is oppositely arranged.
3. touch module as claimed in claim 1, is characterized in that, described touch control component is fixed between described housing and described decorating film.
4. touch module as claimed in claim 1, is characterized in that, described touch control component is capacitive touch control element.
5. touch module as claimed in claim 1, is characterized in that, described touch control component comprises a carbon nanotube layer and at least two electrodes, and these at least two electrodes are electrically connected to this carbon nanotube layer, and this carbon nanotube layer covers described touch area.
6. touch module as claimed in claim 5, is characterized in that, described carbon nanotube layer comprises a plurality of carbon nano-tube, and the preferred orientation extension in the same direction of these a plurality of carbon nano-tube.
7. touch module as claimed in claim 5, is characterized in that, described touch control component further comprises a flexible substrates, and described carbon nanotube layer is arranged at the surface of this flexible substrates, and this flexible substrates is away from described decorating film setting.
8. touch module as claimed in claim 7, is characterized in that, described touch control component further comprises a flexible PCB, and this flexible PCB is electrically connected to described two electrodes at least.
9. touch module as claimed in claim 1, is characterized in that, described touch control component edge is coated by described housing.
10. touch module as claimed in claim 9, is characterized in that, described touch control component is fixed on this housing near around described touch area.
11. touch module as claimed in claim 1 is characterized in that, described touch area is arcuation or stepped.
12. touch module as claimed in claim 11 is characterized in that, described touch control component is arcuation or stepped.
13. touch module as claimed in claim 1 is characterized in that, described housing is phone housing, navigator shell or bearing circle shell.
14. touch module as claimed in claim 1 is characterized in that, described housing is transparent material, and the part that described decorating film is corresponding with the touch area of this housing is transparent.
15. the preparation method of a touch module, it comprises the following steps:
One touch control component, a decorating film and a mould are provided, and wherein, this touch control component is a flexible member, and this mould comprises a master mold and a male model;
Described touch control component and decorating film are individually fixed in described master mold and described male model;
Matched moulds, and inject an injecting forming material and carry out injection moulding in described mould, make this injecting forming material form a housing, thereby form described touch module; And
Described touch module is taken out in the demoulding.
16. the preparation method of touch module as claimed in claim 15, it is characterized in that, described mould further comprises one first film feeder, described male model has a male model die joint, the step that wherein described decorating film is fixed in described male model is: described decorating film is sent to the selection area of this male model die joint along described male model die joint under the traction of this first film feeder; And this decorating film is fixed on this male model die joint.
17. the preparation method of touch module as claimed in claim 16, it is characterized in that, described mould further comprises one second film feeder, described master mold has a master mold die joint, this master mold die joint and described male model die joint are oppositely arranged, the step that wherein described touch control component is fixed in described master mold is: described touch control component is sent to the selection area of this master mold die joint along described master mold die joint under the traction of this second film feeder; And this touch control component is fixed on this master mold die joint.
18. the preparation method of touch module as claimed in claim 15 is characterized in that, described matched moulds, and inject an injecting forming material and carry out injection molding step comprise in described mould: merge described master mold and described male model and form a die cavity; Described injecting forming material is filled in this die cavity, until this injecting forming material fills up this die cavity fully, is fixed in the described decorating film on described male model and is fixed on the surface that touch control component on described master mold adheres to described injecting forming material simultaneously; And cooling, make this injecting forming material form described housing with touch area, thereby form touch control component, housing, the integrated touch module of decorating film.
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| CN201110387168.9A CN103135865B (en) | 2011-11-29 | 2011-11-29 | touch module and preparation method thereof |
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| CN201110387168.9A CN103135865B (en) | 2011-11-29 | 2011-11-29 | touch module and preparation method thereof |
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| CN103135865B CN103135865B (en) | 2016-06-01 |
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| CN104346017A (en) * | 2013-08-09 | 2015-02-11 | 天津富纳源创科技有限公司 | Preparation method of curved surface touch module |
| CN104978054A (en) * | 2014-04-01 | 2015-10-14 | 天津富纳源创科技有限公司 | Thin type flexible electronic device |
| CN105607779A (en) * | 2016-02-24 | 2016-05-25 | 昆山峰实电子科技有限公司 | 3D touch panel and preparation method thereof |
| CN106843606A (en) * | 2015-12-03 | 2017-06-13 | Smk株式会社 | Touch sensing, contact panel and electronic equipment |
| CN107759056A (en) * | 2016-01-26 | 2018-03-06 | 广东欧珀移动通信有限公司 | A kind of cover-plate glass mould |
| CN107920431A (en) * | 2016-10-11 | 2018-04-17 | 芋头科技（杭州）有限公司 | A kind of circuit board assembling structure |
| WO2019127163A1 (en) * | 2017-12-27 | 2019-07-04 | 深圳市柔宇科技有限公司 | Curved-surface touch-control sensing device and moulding method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104346017A (en) * | 2013-08-09 | 2015-02-11 | 天津富纳源创科技有限公司 | Preparation method of curved surface touch module |
| CN104978054A (en) * | 2014-04-01 | 2015-10-14 | 天津富纳源创科技有限公司 | Thin type flexible electronic device |
| CN106843606A (en) * | 2015-12-03 | 2017-06-13 | Smk株式会社 | Touch sensing, contact panel and electronic equipment |
| CN106843606B (en) * | 2015-12-03 | 2020-09-11 | Smk株式会社 | Touch sensor, touch panel and electronic equipment |
| CN107759056A (en) * | 2016-01-26 | 2018-03-06 | 广东欧珀移动通信有限公司 | A kind of cover-plate glass mould |
| CN105607779A (en) * | 2016-02-24 | 2016-05-25 | 昆山峰实电子科技有限公司 | 3D touch panel and preparation method thereof |
| CN107920431A (en) * | 2016-10-11 | 2018-04-17 | 芋头科技（杭州）有限公司 | A kind of circuit board assembling structure |
| CN107920431B (en) * | 2016-10-11 | 2023-10-13 | 芋头科技（杭州）有限公司 | Circuit board assembly structure |
| WO2019127163A1 (en) * | 2017-12-27 | 2019-07-04 | 深圳市柔宇科技有限公司 | Curved-surface touch-control sensing device and moulding method therefor |
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Effective date of registration: 20210428 Address after: Electronic Information Industrial Park, Gui'an New District, Guiyang City, Guizhou Province Patentee after: Guizhou Funa Yuanchuang Technology Co.,Ltd. Patentee after: Shih Hua Technology Ltd. Address before: Haiyun Binhai Economic and Technological Development Zone, Tianjin City, 300457 Street No. 80 Building No. 15 Patentee before: TIANJIN FUNAYUANCHUANG TECHNOLOGY Co.,Ltd. Patentee before: Shih Hua Technology Ltd. |