CN101320304A - Film for internal mould and method for manufacturing midbody for touch panel - Google Patents
Film for internal mould and method for manufacturing midbody for touch panel Download PDFInfo
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- CN101320304A CN101320304A CNA2008101099803A CN200810109980A CN101320304A CN 101320304 A CN101320304 A CN 101320304A CN A2008101099803 A CNA2008101099803 A CN A2008101099803A CN 200810109980 A CN200810109980 A CN 200810109980A CN 101320304 A CN101320304 A CN 101320304A
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- film
- touch pad
- substrate
- internal mould
- metal pattern
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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
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- 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
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Position Input By Displaying (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention provides an in-mold film capable of improving visual identification degree and reducing manufacturing cost of an intermediate for a touch pad. The invention is formed in a structure composed of a substrate film (132) made of resins and a transparent conductive film (12) formed on a back surface (132b) of the substrate film (132), under a state of sandwiching into a metal mould for in-mold molding, the transparent conductive film (12) can be affixed to a surface of the substrate that injects the resin-molded intermediate for the touch pad into an inner cavity for in-mold molding, and a concavo convex portion (141), which is formed by alternatively setting linear concavities (142) and linear convexities (143), is formed on the surface (132a) of the substrate film (132).
Description
Technical field
(in-mold) sandwiches the touch pad intermediate manufacture method of in-mold metal pattern manufacturing touch pad with intermediate with film and with this film for internal mould in the mould of the nesa coating that the present invention relates to possess resinous substrate film and form on a face of substrate film.
Background technology
As the in-mold metal pattern that can use intermediate by in-molded manufacturing touch pad, known have the Jap.P. spy to drive metal pattern in the disclosed mould of 2004-152221 communique.Metal pattern possesses movable metal pattern and fixing metal mould in this mould, and formation can be by the structure of in-molded manufacturing touch pad substrate.Metal pattern in this mould engages two metal patterns under the state that copy film (film for internal mould) is inserted in the inner chamber, injects resin material in the inner chamber of cast gate under this state.Make the touch pad molding substrate with this, the ELD (nesa coating) of on the touch pad substrate, duplicating (applying) film for internal mould simultaneously.
At this moment, utilize the touch pad substrate that metal pattern is made in the above-mentioned mould, use on the touch pad of for example resistance membrane type.Specifically, be set up in parallel a pair of touch pad substrate in that nesa coating is clipped under the relative state of a pad (dot spacer), the edge portion of two touch pad substrates of this state engaged, to make resistance membrane type touch pad.This resistance membrane type touch pad, when carrying out touch operation with felt pen for one surface of two touch pad substrates, the position that is touched and another touch pad substrate contacts, the resistance value of this moment changes.Therefore,, determine touch location, this touch pad is worked as operating portion by detecting the variation of this resistance value.
Summary of the invention
Yet metal pattern exists following problems in the above-mentioned mould.That is, use in the touch pad that utilizes the above-mentioned resistance membrane type of the touch pad substrate of metal pattern moulding in this mould,, exist this recessed part generation Newton ring, the problem that the inboard image observability that shows descends because the part that is touched is more recessed slightly than other parts.As the technology that can address this problem, for example the Jap.P. spy opens the disclosed transparent composite of 2005-18726 communique, proposition is that triangle height is that small ridge portion (jog of wire) about 0.1 μ m～10 μ m forms on nesa coating by making section, fine interference fringe (Newton ring) is generated, avoid influencing the structure of the identification of image with this.In this case, when metal pattern is made this transparent composite in the above-mentioned mould, usually in mould, on the forming surface (inner cavity surface) of metal pattern thin-line-shaped jog is set,, forms nesa coating by this concaveconvex shape is described (mold pressing) on nesa coating.But, owing to will be in mould correctly on the forming surface of metal pattern form trickle jog and need high technology, therefore exist the manufacturing cost of metal pattern in the mould surging, be difficult to reduce the such problem of manufacturing cost.
The present invention makes in view of such problem, and fundamental purpose provides a kind of film for internal mould and touch pad intermediate manufacture method that can reduce the manufacturing cost of the touch pad usefulness intermediate that can improve observability.
Can reach the film for internal mould of the present invention of above-mentioned purpose, it is the nesa coating that possesses resinous substrate film and on face of this substrate film, form, be sandwiched in in-molded fit on a face of the substrate of the intermediate film for internal mould of described nesa coating of that resin forms, touch pad that injects in the inner chamber of this in-molded usefulness under with the state in the metal pattern, one of them protuberance of going up the recess that forms wire and wire at least of the another side of described substrate film and described nesa coating replaces and establishes the jog of formation.
In this case, the formation spacing between formation spacing between the adjacent described recess of described jog and adjacent described protuberance can separate provision be same spacing.
In addition, can on the another side of described substrate film, form described jog.
In addition, touch pad of the present invention with the manufacture method of intermediate is, the inner chamber of the in-mold metal pattern of the state that the film for internal mould that will be on the one side of resinous substrate film forms the in-molded usefulness of nesa coating is sandwiched injects resin, make the molding substrate of touch pad with intermediate, this nesa coating of applying on a face of this substrate is made the touch pad intermediate manufacture method of this touch pad with intermediate simultaneously; The recess of wire and the protuberance of wire alternately and the jog of establishing formation one of them the described film for internal mould at least that is formed at the another side of described substrate film and described nesa coating in-moldedly sandwiched by described with metal pattern, make described touch pad intermediate.
In addition, touch pad of the present invention with the intermediate manufacture method is, the inner chamber of the in-mold metal pattern of the state that the film for internal mould that will be on the one side of resinous substrate film forms the in-molded usefulness of nesa coating is sandwiched injects resin, make the molding substrate of touch pad with intermediate, this nesa coating of applying on a face of this substrate is made the touch pad intermediate manufacture method of this touch pad with intermediate simultaneously; At the protuberance of recess that makes wire and wire alternately and under the jog of establishing formation one of them concavo-convex at least that be formed at its one side and another side duplicate with the inner cavity surface and the state between the described film for internal mould of film in the described one side moulding that makes described substrate of inner chamber, in-moldedly sandwich this concavo-convex duplicating with described, make described touch pad intermediate with film and this film for internal mould with metal pattern.
If adopt film for internal mould of the present invention and touch pad intermediate manufacture method, with the protuberance of the recess of wire and wire alternately and the jog of establishing formation be formed at the another side of substrate film and described nesa coating at least one of them, use possesses the film for internal mould of this substrate film and makes the touch pad intermediate, utilization can in-moldedly be carried out in-moldedly by means of what do not form trickle jog on this cheap this film for internal mould made and the inner cavity surface with metal pattern, can form jog on the nesa coating of touch pad with intermediate.Therefore, compare with the manufacture method in the past of intermediate with using the in-mold metal pattern manufacturing touch pad that on inner cavity surface, forms trickle jog, can reduce in-molded manufacturing cost more fully corresponding to the jog that does not form with respect to inner cavity surface with metal pattern.So, if adopt this film for internal mould and touch pad intermediate manufacture method, can cut down in-molded manufacturing cost with metal pattern, corresponding with it, can fully cut down the manufacturing cost of touch pad with intermediate and touch pad.
In addition, if adopt film for internal mould of the present invention, by being same spacing with the formation spacing separate provision between formation spacing between the adjacent recess of jog and the adjacent protuberance, by means of this, the formation spacing of each recess can be equated and jog that the formation spacing of each protuberance equates is formed on the nesa coating.Therefore, can avoid really because their formation spacing difference, and for example regard recess and protuberance as apperance at random, the state of affairs that brings the inharmonious sense of user takes place.
In addition, if adopt film for internal mould of the present invention, by on the another side of substrate film, forming jog, a face of substrate film can be formed smooth state, therefore be coated on the face of substrate film by the material that transparency electrode is used, can form the uniform nesa coating of thickness expeditiously.Therefore, can make the uniform touch pad intermediate of electrically conducting transparent film thickness.
In addition, if adopt touch pad of the present invention intermediate manufacture method, the recess by using wire and the protuberance of wire alternately and the jog of establishing formation the concavo-convex of one of them at least that be formed at its one side and another side duplicate with thin film fabrication touch pad intermediate, in-molded by means of the in-molded usefulness metal pattern that uses should concavo-convexly duplicating of can cheaply making not form trickle jog on film for internal mould with film, in-molded usefulness, the inner cavity surface can form jog on the nesa coating of touch pad with intermediate.Therefore, the in-mold metal pattern manufacturing touch pad that forms trickle jog with use on inner cavity surface is compared with the manufacture method in the past of intermediate, can correspondingly fully reduce in-molded manufacturing cost because of not forming jog with respect to inner cavity surface with metal pattern.So,, can fully reduce the manufacturing cost of touch pad corresponding to the in-molded minimizing of using the manufacturing cost of metal pattern with intermediate and touch pad if adopt this touch pad intermediate manufacture method.
Description of drawings
Fig. 1 is the stereographic map of expression touch pad 1 structure.
Fig. 2 is the outboard profile of the direction of the arrow A from Fig. 1 the lower electrode 2a, the upper electrode 2b that see and some pad 3.
Fig. 3 is the structural drawing of expression manufacturing installation 101 structures.
Fig. 4 is the sectional view of metal pattern 102.
Fig. 5 is the sectional view of the state of fixation side metal pattern 111 and mobile side metal pattern 121 joints.
Fig. 6 is the sectional view of expression film for internal mould 131 structures.
Fig. 7 is the key diagram of the manufacture method of explanation substrate film 132.
Fig. 8 is the key diagram of the in-molded method of explanation.
Fig. 9 is another key diagram of the in-molded method of explanation.
Figure 10 is the another key diagram of the in-molded method of explanation.
Figure 11 is the sectional view of the structure of expression film for internal mould 231.
Figure 12 is the sectional view of the structure of expression film for internal mould 331.
Figure 13 is that film for internal mould 431 and the concavo-convex key diagram that duplicates with the in-molded method of film 531 are used in explanation.
Figure 14 is that film for internal mould 431 and concavo-convex another key diagram that duplicates with the in-molded method of film 531 are used in explanation.
Figure 15 is that explanation uses film for internal mould 431 and concaveconvex shape to duplicate the key diagram of the in-molded method of using film 631.
Figure 16 is that explanation uses film for internal mould 431 and concaveconvex shape to duplicate the key diagram of the in-molded method of using film 731.
Label declaration
1 touch pad
2 main parts
11 substrates
The 11a inside surface
12 nesa coatings
102 metal patterns
The 102a inner chamber
131,231,331,431 film for internal mould
132 substrate films
132a, 531a, 631a, 731a surface
132b, 531b, 631b, the 731b back side
141,541 jogs
142 recesses
143 protuberances
531,631,731 concavo-convex duplicating are used film
P1, P2, P11, P12 form spacing
Embodiment
With reference to the accompanying drawings in-mold metal pattern of the present invention, touch pad are described with the optimal morphology of intermediate and touch pad with intermediate manufacture method, touch pad.
At first with reference to the structure of description of drawings touch pad 1.
The touch pad 1 that Fig. 1 represents is mounted in for example display surface side of display device (mounting object) such as display panels, as the resistance membrane type touch pad that touch operating portion works, possess lower electrode 2a, upper electrode 2b, a plurality of somes pads 3 and terminal for connecting 4.Lower electrode 2a is equivalent to touch pad intermediate of the present invention, possesses substrate 11 and nesa coating 12 (with reference to Fig. 2), by means of the in-molded manufacturing of using following in-mold metal pattern 102 (hereinafter to be referred as " metal pattern 102 ").
Nesa coating 12 is transparent and has the film of electric conductivity, goes up formation at film for internal mould 131 (with reference to Fig. 5), fits in the inside surface 11a (with reference to Fig. 2) of substrate 11 when in-molded.As shown in the drawing again, on whole faces of nesa coating 12, the shape that the surperficial 132a that uses following metal pattern 102 to carry out the substrate film 132 of film for internal mould 131 when in-molded goes up the jog 141 (with reference to Fig. 6) that forms is replicated (describing), by means of this, be formed among Fig. 2 and point to paper the fine recesses 22 of the wire of direction and protuberance 23 be alternately and establish the jog 21 of formation up and down.In this case, also can adopt the structure that forms jog 21 in the part of nesa coating 12.
At this moment, jog 21 as shown in Figure 2, height (degree of depth) L1 from the bottom 22a of recess 22 to the top 23a of protuberance 23 is more than 0.5 μ m in the scope below the 3 μ m.In addition, the formation spacing P2 between formation spacing P1 between the adjacent recess 22 of jog 21 and the adjacent protuberance 23 is defined as identical spacing (as an example, being defined as the spacing in the following scope of the above 0.4mm of 0.05mm).
Terminal for connecting 4 for example is installed in the lower electrode 2a of configuration and the outer peripheral edges portion of upper electrode 2b relatively as shown in Figure 1, is connected with the nesa coating 12,32 of two electrode 2a, 2b simultaneously.In addition, terminal for connecting 4 forms the structure of the connector that can insert stube cable, by stube cable the external circuits such as control part on the mounting object is connected with nesa coating 12,32.
The structure of manufacturing installation 101 is described with reference to the accompanying drawings.
Fixation side metal pattern 111 possesses basal part 112 and main part 113 formations as shown in Figure 3.Basal part 112 forms tabular, and formation can be installed in the structure of the fixation side installation portion (not shown) of injection molding machine 104.Main part 113 is fixed on the basal part 112, as shown in Figure 5, make under the state that clips film for internal mould 131 its with state that the main part 123 of mobile side metal pattern 121 engages under, the inner chamber 102a of substrate 11 moulding will be formed with main part 123.
In this case, shown in Fig. 4,5, in each inner cavity surface of formation inner chamber 102a, make on the inner cavity surface (the inner cavity surface 102d among Fig. 4,5) of end face 11c (with reference to Fig. 1,2) moulding of substrate 11, being provided with will be by sprue 102b force feed, injects the cast gate 102c that uses in the inner chamber 102a from the resin of the flow state of injection molding machine 104.Specifically, cast gate 102c is formed on the inner cavity surface 102d, the outside surface 11b moulding that makes substrate 11 at the film for internal mould 131 residing positions that main part 113 and main part 123 sandwich inner cavity surface (the inner cavity surface 102e among two a figure) side, and be formed at the position (for example central portion on the length direction of inner cavity surface 102d) of width of the film for internal mould 131 of the length direction that is arranged in along inner cavity surface 102d (Fig. 4 from paper on the vertical direction of pointing to paper).Therefore, as shown in Figure 5, can film for internal mould 131 be pushed to the inner cavity surface 102f relative with inner cavity surface 102e (forming the inner cavity surface of the inside surface 11a of substrate a 11) side by means of the pressure of the resin that in inner chamber 102a, injects from cast gate 102c.
Mobile side metal pattern 121 possesses basal part 122, main part 123, cushion block 124 and jet tray 125 as shown in Figure 3.Basal part 122 forms tabular, and formation can be installed in the structure of the mobile side installation portion (not shown) of injection molding machine 104.Main part 123 is fixed on the basal part 122 by cushion block 124, forms inner chamber 102a simultaneously with the main part 113 of fixation side metal pattern 111.Jet tray 125 is equipped between basal part 122 and the main part 123, moves between basal part 122 and main part 123 by means of injection molding machine 104, makes the outer ejector pin of figure outstanding to the place ahead of main part 123 with this.
Film for internal mould mobile device 103 as shown in Figure 3, between fixation side metal pattern 111 and mobile side metal pattern 121, per 1 time in-molded (1 time inject) makes 131 length that move regulation of film for internal mould.
Film for internal mould 131 is examples of film for internal mould of the present invention, as shown in Figure 6, is made of substrate film 132, nesa coating 12 and tack coat 134.Substrate film 132 by thickness be about 15 μ m～100 μ m have the appropriateness flexibility and flexible resin (for example PET or PP (polypropylene)) form.In addition, as shown in the drawing, on the surperficial 132a of substrate film 132, be formed with section for for example triangular shaped, and vertically point to the trickle recess 142 of the wire in the outside in the paper and protuberance 143 in the figure alternately and establish the jog 141 of formation.Specifically, jog 141 forms height (degree of depth) the L11 structure in the scope below the 3 μ m more than 0.5 μ m from the bottom 142a of its recess 142 to the top 143a of protuberance 143.In addition, jog 141, the formation spacing P12 between formation spacing P11 between its adjacent recess 142 and the adjacent protuberance 143 are defined as uniform distances (for example spacing in the following scope of the above 0.4mm of 0.05mm).At this moment, jog 141 is as an example, as shown in Figure 7, be the surface form the roller 201 of tooth portion and the roller 202 that has an even surface between sandwich substrate film 132, the surperficial 132a that the tooth portion shape of roller 201 is pressed in substrate film 132 goes up (mold pressing) that forms concavo-convex vestige.
Nesa coating 12 is made of the indium oxide of for example mixing tin indium oxides such as (ITO), clips figure peel ply outward, and formation thickness is the film like about 0.5 μ m～5 μ m on the back side of substrate film 132 132b (face of substrate film of the present invention).In addition, as the formation method of nesa coating 12, can use the whole bag of tricks such as rubbing method or vapour deposition method.In addition, as the material that constitutes nesa coating 12, be not to be defined in above-mentioned indium oxide, can use the particulate of the tin oxide (ATO) of mixing antimony and the tin oxide tin oxide such as (FTO) of mixing fluorine, the zinc paste zinc oxide fine particles such as (AZO) of mixing aluminium and cadmium oxide etc. transparent and the various materials of electric conductivity are arranged.Tack coat 134 is by when in-molded nesa coating 12 being sticked on the material that makes its applying usefulness on the substrate 11, forming film like on the surface of nesa coating 12.
At this moment, this film for internal mould 131 only is used in the simple procedures that clips substrate film 132 between roller 201 and the roller 202 and just can forms jog 141 at the surperficial 132a of substrate film 132 as mentioned above.Therefore, can cheaply make film for internal mould 131.
With reference to the accompanying drawings the operation of using manufacturing installation 101 to make lower electrode 2a and touch pad 1 according to touch pad of the present invention with the intermediate manufacture method is described.
At first, as shown in Figure 3, the fixation side metal pattern 111 and the mobile side metal pattern 121 of metal pattern 102 is installed respectively on fixation side installation portion outside the figure of injection molding machine 104 and the mobile side installation portion.Then, make tack coat 134 relative, film for internal mould 131 is arranged on the film for internal mould mobile device 103, make 103 work of film for internal mould mobile device with the inner cavity surface 102e of fixation side metal pattern 111.At this moment, film for internal mould mobile device 103 makes film for internal mould 131 move the length of regulation between the fixation side metal pattern 111 of metal pattern 102 and mobile side metal pattern 121.Then, make injection molding machine 104 work.At this moment; because the clamping of injection molding machine 104 makes mobile side installation portion move to the fixation side installation portion; as shown in Figure 5, the main part 113 of fixation side metal pattern 111 engages one another under the state that sandwiches film for internal mould 131 with the main part 123 of mobile side metal pattern 121.
Then, the resin of the injecting mechanism force feed flow state of injection molding machine 104.At this moment, as shown in Figure 5, the resin that goes out from injection molding machine 104 force feeds injects in inner chamber 102a from cast gate 102c by sprue 102b.At this moment, in this metal pattern 102, as shown in the drawing, on inner cavity surface 102d, the inner cavity surface 102e side at film for internal mould 131 residing positions, and be to be positioned at along the position of the width of the film for internal mould 131 of the length direction of inner cavity surface 102d cast gate 102c is set.Therefore, film for internal mould 131 is pushed to inner cavity surface 102f side, simultaneously inner cavity filled 102a from the resin that cast gate 102c injects in inner chamber 102a.In addition, along with the filling of resin, the tack coat 134 and the resin of film for internal mould 131 are close to.
On the other hand, as shown in Figure 8, owing to the injection of resin is pressed against the film for internal mould 131 of inner cavity surface 102f side, the top 143a that the surperficial 132a of its substrate film 132 goes up the protuberance 143 of the jog 141 that forms contacts with inner cavity surface 102f at first.Then, along with the increase of resin to the pressure of film for internal mould 131, as shown in Figure 9, each protuberance 143 that contacts with inner cavity surface 102f can distortion.At this moment, the position relative with protuberance 143 in the nesa coating 12 applied from inner cavity surface 102f by protuberance 143, pushes to resin side to the opposite force of resin side (inner cavity surface 102e side), and therefore to deform outstanding to resin side.On the contrary, therefore keep not to the outstanding state of resin side owing to be not subjected to opposite force (perhaps opposite force is very little) from inner cavity surface 102f at the position relative with recess 142 in the nesa coating 12.
Then, continue to inject resin in the inner chamber 102a, when resin continues to increase to the pressure of film for internal mould 131, as shown in figure 10, protuberance 143 is deformed, become with one side (becoming one side) up to the recess 142 and the protuberance 143 of jog 141,102f contacts with inner cavity surface.At this moment, the position relative with protuberance 143 of nesa coating 12 be owing to continued to press to resin side, and further distortion is outstanding to resin side.Its result is as shown in the drawing, and the jog 21 that duplicates the shape of (having described) jog 141 forms on nesa coating 12.
Here, form the manufacture method in the past of the in-molded manufacturing lower electrode 2a of the in-mold metal pattern that forms trickle jog on the film for internal mould of tabular surface and the inner cavity surface by means of the surface of using substrate film, need high technology owing to form trickle jog in inner cavity surface, therefore the manufacturing cost height of metal pattern in the mould is difficult to reduce the manufacturing cost of lower electrode 2a and touch pad 1.And the touch pad of use film for internal mould 131 of the present invention owing to the trickle jog that does not need to form for inner cavity surface 102f, can cheaply be made metal pattern 102 with the manufacture method of intermediate.As mentioned above, can cheaply make film for internal mould 131 again.Therefore, film for internal mould 131 of the present invention and touch pad intermediate manufacture method can fully reduce the manufacturing cost of lower electrode 2a and touch pad 1.
Then; after cool time through regulation; the clamping of injection molding machine 104 makes mobile side installation portion move to the direction that deviates from the fixation side installation portion; remove engaging of fixation side metal pattern 111 and mobile side metal pattern 121 with this, mobile side metal pattern 121 is left from fixation side metal pattern 111.At this moment, the moulding product (being substrate 11) of moulding break away from from fixation side metal pattern 111 with mobile side metal pattern 121 owing to hardening of resin.Then, the injection equipment of injection molding machine 104 makes the jet tray 125 of mobile side metal pattern 121 to main part 123 side shiftings, makes the outer ejector pin of figure outstanding to the place ahead of main part 123 with this, and the substrate 11 of moulding is taken out from mobile side metal pattern 121.At this moment, because tack coat 134 is close to (stickup) with substrate 11, film for internal mould 131 is taken out from mobile side metal pattern 121 with substrate 11.
Then, peel off the substrate film 132 of film for internal mould 131 from substrate 11.At this moment, stick on state on the inside surface 11a of substrate 11 because nesa coating 12 is in by tack coat 134, substrate film 132 is peeled off from nesa coating 12 easily, and nesa coating 12 is fitted with inside surface 11a.By means of this, finished the inside surface 11a upward manufacturing of the lower electrode 2a of nesa coating 12 formations of applying of substrate 11 with substrate 11.
Then, make upper electrode 2b.At this moment, at first, will be coated on as the tin-doped indium oxide (ITO) that nesa coating forms the material of usefulness on the face of the slide 31 that forms with for example PET, form nesa coating 32 with one side at slide 31.Next, implement dura mater processing and antireflection processing at the another side (touch face) of slide 31.Then, the size (roughly onesize) that the formation and the above-mentioned slide that machines 31 of nesa coating 32 is cut to regulation with lower electrode 2a.So just finished the manufacturing of upper electrode 2b.
Then, make the nesa coating 12 of lower electrode 2a and the nesa coating 32 of upper electrode 2b relatively clip a pad 3 with two electrode 2a, 2b, the outer peripheral edges portion use cementing agent of two electrode 2a, 2b under this state etc. are bonding.Next, in the outer peripheral edges portion of two electrode 2a, 2b terminal for connecting 4 is installed, the nesa coating 12 that will fit on the inside surface 11a of the substrate 11 of lower electrode 2a and the nesa coating 32 of upper electrode 2b are connected with terminal for connecting 4 simultaneously.Finish the making of touch pad 1 with this.
At this moment, in this touch pad 1, as mentioned above, on nesa coating 12, be formed with the jog 21 that trickle recess 22 and protuberance 23 constitute.Therefore, when carrying out touch operation for touch pad 1, owing to there is this jog 21, the trickle interference fringe of the degree that human eye can't be discerned produces at the position that touches, and can avoid can causing observability the generation of the big interference fringe of bigger obstruction with this.Therefore, this touch pad 1 can make very distinct being easy to such as image of the inboard demonstration of touch pad 1 recognize under the state that is installed on the mounting object.
Like this, if adopt this film for internal mould 131 and touch pad intermediate manufacture method, with the protuberance 143 of the recess 142 of wire and wire alternately and the jog 141 of establishing formation be formed on the surperficial 132a of substrate film 132, use possesses the film for internal mould 131 of this substrate film 132 and makes lower electrode 2a, like this can be by use the in-molded jog 21 that forms of the metal pattern 102 that does not form trickle jog on cheap this film for internal mould 131 made of energy and the inner cavity surface 102f on the nesa coating 12 of lower electrode 2a.Therefore, make the manufacture method in the past of lower electrode 2a with the in-mold metal pattern that forms trickle jog on the use inner cavity surface and compare, can be because of not needing to form the manufacturing cost of correspondingly fully cutting down metal pattern 102 with respect to the jog of inner cavity surface 102f.So,, can fully reduce the manufacturing cost of lower electrode 2a and touch pad 1 corresponding to the reduction of the manufacturing cost of metal pattern 102 if adopt this film for internal mould 131 and touch pad intermediate manufacture method.
In addition, if adopt this film for internal mould 131 and touch pad intermediate manufacture method, formation spacing that then can each recess 142 equates, and the formation spacing of each protuberance 143 equally constitutes jog 141 on substrate film 132, use possesses the film for internal mould 131 of this substrate film 132 and makes lower electrode 2a, the formation spacing that so just can form each recess 22 on substrate film 12 equates, and the equal jog 21 of the formation spacing of each protuberance 23.Therefore, can avoid reliably causing recess 22 and protuberance 23 for example to seem to become apperance at random, make the user that the state of affairs of inharmonious sense be arranged the user because of these form the spacing difference.
And, if adopt this film for internal mould 131 and touch pad intermediate manufacture method, then on the surperficial 132a of substrate film 132, form jog 141, use this film for internal mould 131 to make lower electrode 2a, the back side 132b of substrate film 132 can be formed smooth state like this, therefore by transparency electrode is coated on back side 132b with material, can form the uniform nesa coating 12 of thickness expeditiously.Therefore, can make the uniform lower electrode 2a of thickness of nesa coating 12.
In addition, the present invention is defined in said structure.Though the surperficial 132a (another side of substrate film of the present invention) that has for example enumerated at substrate film 132 goes up the film for internal mould 131 that forms jog 141 and is illustrated for example, but the film for internal mould 231 shown in also can image pattern 11 is such, employing is gone up the structure that forms jog 141 at nesa coating 12 (back side 132b (another side that is equivalent to substrate film of the present invention) that comprises tack coat 134 and substrate film 132) when surperficial 132a is formed tabular surface.Film for internal mould 331 and for example shown in Figure 12 is such, also can adopt the structure that forms jog 141 the surperficial 132a both sides of nesa coating 12 and substrate film 132.In addition, the tabular substrate 11 of having narrated rectangle above forms the example of nesa coating 12, but is not to be defined in this, also is applicable to the substrate 11 of arbitrary shape.
In addition, shown in Figure 13,14,, also can use film for internal mould 431 and concavo-convex duplicating, make lower electrode 2a (another touch pad intermediate manufacture method of the present invention) with film 531 as substituting of film for internal mould 131.At this moment, film for internal mould 431 is made of (being that the surface and the back side the are smooth) substrate film 132 that does not form above-mentioned jog 141, nesa coating 12 and tack coat 134 as shown in figure 13.It is on the other hand, concavo-convex that to duplicate with film 531 be that have appropriate flexibility and flexible resin (for example PET or PP) about 15 μ m～100 μ m forms by thickness.In addition, on the concavo-convex surperficial 531a (a concavo-convex face that duplicates with film of the present invention) that duplicates with film 531, be formed with jog 541 with jog 141 same shapes.Be that the concavo-convex substrate film 132 that duplicates with film 531 and above-mentioned film for internal mould 131 has same structure.
When using this film for internal mould 431 and concaveconvex shape to duplicate with film 531 manufacturing lower electrode 2a, as shown in figure 14, the surperficial 132a of substrate film 132 that makes film for internal mould 431 is with concavo-convex to duplicate back side 531b with film 531 (the concavo-convex another side that duplicates with film of the present invention) relative, and make the tack coat 134 of film for internal mould 431 relative with the inner cavity surface 102e of fixation side metal pattern 111, film for internal mould 431 and concavo-convex duplicating with film 531 are arranged on the film for internal mould mobile device 103, below implement and the same operation of above-mentioned manufacturing process.In this case, to clipping film for internal mould 431 and concavo-convex when injecting resin in duplicating with the inner chamber 102a of the metal pattern 102 of film 531, duplicate (describing) concavo-convex jog 21 that duplicates with the shape of the jog 541 of film 531 and be formed on the nesa coating 12.
This touch pad is with in the intermediate manufacture method, also can be by means of the metal pattern 102 that uses can cheaply make concavo-convex to duplicate not form trickle jog on film for internal mould 431 with film 531, in-molded usefulness, the inner cavity surface 102f in-molded, on the nesa coating 12 of lower electrode 2a, form jog 21, therefore with use inner cavity surface on form trickle jog the in-mold metal pattern manufacture method in the past of making lower electrode 2a compare, can fully reduce the cost of manufacture of metal pattern 102.So, this touch pad with intermediate manufacture method in, also can fully reduce the cost of manufacture of metal pattern 102, and can corresponding therewith abundant reduction lower electrode 2a and the cost of manufacture of touch pad 1.In addition, as shown in figure 15, surperficial 631a is formed tabular surface, 631b goes up concavo-convex the duplicating that forms jog 641 and uses film 631 overleaf simultaneously; As shown in figure 16, surperficial 731a and back side 731b both sides concavo-convex the duplicating that form jog 741 can be used as concaveconvex shape with film 731 and duplicates alternative use with film 531.At this moment, it is concavo-convex that to duplicate with film 631,731 be that have appropriate flexibility and flexible resin (duplicating with the same resin of resin that uses in the forming of film 531 with concavo-convex) about 15 μ m～100 μ m forms by thickness, use film 531 same with concavo-convex duplicating, can cheaply make.
Claims (5)
1. film for internal mould, the nesa coating that possesses resin system substrate film and on a face of this substrate film, form, under sandwiching the in-molded state of using in the metal pattern, the described nesa coating of applying on a face of the substrate of using intermediate by the touch pad that in the inner chamber of this in-molded usefulness, injects resin forming, it is characterized in that
At least one side of the another side and the described nesa coating of described substrate film, the protuberance that forms the recess of wire and wire alternately and establish the jog of formation.
2. film for internal mould as claimed in claim 1 is characterized in that,
Described jog, the formation spacing separate provision between formation spacing between its adjacent described recess and the adjacent described protuberance is same spacing.
3. film for internal mould as claimed in claim 1 or 2 is characterized in that,
Form described jog on the another side of described substrate film.
4. touch pad intermediate manufacture method,
Be on a face of resinous substrate film, to form nesa coating, the inner chamber of the in-mold metal pattern under the state that the film for internal mould of in-molded usefulness is sandwiched injects resin, form the substrate of touch pad with intermediate, while is this nesa coating of applying on a face of this substrate, make the touch pad intermediate manufacture method of this touch pad with intermediate, it is characterized in that
The recess of wire and the protuberance of wire alternately and the jog of establishing formation in-moldedly sandwiched by described at the described film for internal mould of at least one square one-tenth of the another side of described substrate film and described nesa coating with metal pattern, make described touch pad intermediate.
5. touch pad intermediate manufacture method,
The inner chamber that is the in-mold metal pattern under the state that the film for internal mould that forms the in-molded usefulness of nesa coating on the face of resinous substrate film is sandwiched injects resin, form the substrate of touch pad with intermediate, while is this nesa coating of applying on a face of this substrate, make the touch pad intermediate manufacture method of this touch pad with intermediate, it is characterized in that
The protuberance of recess that makes wire and wire alternately and the jog of establishing formation under at least one square one-tenth of its one side and another side concavo-convex duplicated with the inner cavity surface and state described film for internal mould between of film in the described one side moulding that makes described substrate of inner chamber, clip this concavo-convex duplicating with described in-molded metal pattern, make described touch pad intermediate with film and this film for internal mould.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007152205A JP2008305212A (en) | 2007-06-08 | 2007-06-08 | Film for in-mold and manufacturing method of intermediate object for touch panel |
| JP2007152205 | 2007-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101320304A true CN101320304A (en) | 2008-12-10 |
Family
ID=40180379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101099803A Pending CN101320304A (en) | 2007-06-08 | 2008-06-06 | Film for internal mould and method for manufacturing midbody for touch panel |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2008305212A (en) |
| KR (1) | KR100990773B1 (en) |
| CN (1) | CN101320304A (en) |
| TW (1) | TW200849285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231401A (en) * | 2021-05-14 | 2021-08-10 | 中国科学院上海高等研究院 | Electrostatic dust removal device and camera |
-
2007
- 2007-06-08 JP JP2007152205A patent/JP2008305212A/en active Pending
-
2008
- 2008-04-24 TW TW097115032A patent/TW200849285A/en unknown
- 2008-05-29 KR KR1020080050179A patent/KR100990773B1/en not_active IP Right Cessation
- 2008-06-06 CN CNA2008101099803A patent/CN101320304A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231401A (en) * | 2021-05-14 | 2021-08-10 | 中国科学院上海高等研究院 | Electrostatic dust removal device and camera |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100990773B1 (en) | 2010-10-29 |
| TW200849285A (en) | 2008-12-16 |
| KR20080108010A (en) | 2008-12-11 |
| JP2008305212A (en) | 2008-12-18 |
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