CN103218080A - Touch module and manufacture method thereof - Google Patents
Touch module and manufacture method thereof Download PDFInfo
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- CN103218080A CN103218080A CN2013101260887A CN201310126088A CN103218080A CN 103218080 A CN103218080 A CN 103218080A CN 2013101260887 A CN2013101260887 A CN 2013101260887A CN 201310126088 A CN201310126088 A CN 201310126088A CN 103218080 A CN103218080 A CN 103218080A
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Abstract
The invention discloses a touch module and a manufacture method thereof. The touch module comprises a touch induction layer and a cover plate, wherein the upper surface of the cover plate is in an arc-shaped curved surface structure; the touch induction layer is integrally arranged on the lower surface of the cover plate in an in-mold forming mode; and an arc-shaped curved surface shell with a touch induction function is formed by the touch induction layer and the cover plate. The manufacture method for the touch module comprises the following steps of providing the cover plate which is provided with an upper surface and a lower surface with the arc-shaped curved surface structure; arranging the touch induction layer; and arranging the touch induction layer on the lower surface of the cover plate in an integral forming mode by the in-mold injection forming technology to form the arc-shaped curved surface shell with the touch induction function. According to the touch module disclosed by the invention, the touch induction layer and the cover plate can be directly combined to form the integral-forming shell with the arc-shaped curved surface structure by the in-mold injection forming technology, thereby being favorable for satisfying the requirements of thin and light property, high performance and diversified appearance of a touch panel.
Description
Technical field
The present invention and touch sensor technologies field particularly relate to a kind of touch module and manufacture method thereof with arc-shaped curved surface structure, and contact panel and touch-control display screen with this touch module.
Background technology
Along with the progress of science and technology, electronic product in the application of people's life more and more widely.Move smart mobile phone, MP4, PDA, panel computer, portable computer, palm PC etc. are very universal in daily life, become the common tool in people's daily life.Contact panel is day by day popularized as a kind of application of interface device in above-mentioned electronic product of man-machine interaction.Lightening, high-performance, the multifarious demand of outward appearance of contact panel have also become present development trend.
In above-mentioned electronic equipment, when using contact panel, the user can make one's options on display screen by object on the display screen that uses pointer or the direct click of finger electronic equipment.Compare traditional keyboard, the use of contact panel can make things convenient for much in the use for the user.As shown in Figure 1, traditional contact panel 10 comprises that a flat glass cover plate 11, one glass substrates 12 and are arranged on the sensing circuit 121 of planar glass substrate.Glass cover-plate 11 is bonded together by an optics glue-line 13 and the flat glass that is provided with sensing circuit 121.
As shown in Figure 2, be the cross section structure synoptic diagram of Fig. 1.Can see among the figure, be provided with optics glue-line 13 between flat glass cover plate 11 and the glass substrate 12.In said structure, because flat glass cover plate 11 need fit on the glass substrate 12, optics glue-line 13 can increase the thickness of whole contact panel 10, does not utilize the lightening of contact panel.In addition, because the character of optics glue-line 13 itself, also can influence the integral light-transmitting degree of contact panel 10.In the manufacture process of contact panel owing to need carry out bonding process, one production process that meeting is many, being easy to generate bubble in the applying process causes flat glass cover plate 11 and glass substrate 12 entirely to fit, and residual bubble can influence the optical property and the product appearance of contact panel 10, influences the production yield of contact panel 10 easily.
Moreover along with the development of technology, people are also more and more higher to the requirement of the outward appearance of contact panel.Traditional contact panel all is the flat glass cover plate, is unfavorable for satisfying the multifarious demand of electronic product outward appearance.In addition, because the market competition of contact panel is growing more intense, lightening in contact panel outward appearance diversity, under the high performance demand, the cost that how to reduce contact panel as much as possible also becomes a problem that presses for solution.
Therefore, need a kind of new contact panel to solve the problem and the defective of above-mentioned existence.
Summary of the invention
For solving the problem that exists in the above-mentioned contact panel applying process, the object of the present invention is to provide a kind of touch module, it can save the applying process of above-mentioned contact panel, save above-mentioned optics glue-line, avoid occurring in the applying process problems such as bubble, applying out-of-flatness and optical property reduction.
Another object of the present invention is to provide a kind of contact panel, the demand with lightening, the high performance that satisfies contact panel can improve the optical property of contact panel simultaneously and produce yield.
Another object of the present invention is to provide a kind of touch-control display screen, satisfying that contact panel is lightening, in the demand of high performance, can improve the optical property of contact panel simultaneously and produce yield.
Another object of the present invention is to provide a kind of manufacture method of touch module, simplify production procedure, improve and produce yield.
Another object of the present invention is to provide a kind of manufacture method of contact panel, it comprises the manufacture method of above-mentioned touch module and the step of the software circuit board that formation is electrically connected with described touch module.
To achieve these goals, the invention provides a kind of touch module, comprise touch-control sensing layer and cover plate, the upper surface of described cover plate is the arc-shaped curved surface structure, and described touch-control sensing layer is integrally formed at described cover plate lower surface in-moldedly, and described touch-control sensing layer and described cover plate form the arc-shaped curved surface housing with touch-control sensing function.
Further, described touch-control sensing layer comprises substrate and is arranged on touch control induction circuit on the substrate that described touch control induction circuit also comprises many first perimeter circuits of the connection that is arranged on the described substrate described first direction electrode group and external circuits.
Further, described first direction electrode group is a rectangle structure.
Further, described touch control induction circuit also comprises the electrode group of a plurality of second directions that are parallel to each other, and the mutual homeotropic alignment of described second direction electrode group and described first direction electrode group forms matrix structure.
Further, described touch control induction circuit also comprises many second perimeter circuits of the connection that is arranged on the described substrate described second direction electrode group and described external circuits.
Further, described first direction electrode group and described second direction electrode group are arranged at the same surface of described substrate.
Further, described first direction electrode group and described second direction electrode group are arranged at the different surfaces of described substrate.
Further, described first direction electrode group comprises a plurality of first direction electrodes, is electrically connected each other between described a plurality of first direction electrodes; Described second direction electrode group comprises a plurality of second direction electrodes, is electrically connected mutually between described a plurality of second direction electrodes.
Further, the material of described first direction electrode group and described second direction electrode group is that transparent conductive material is made.
Further, the material of described first perimeter circuit and described second perimeter circuit is opaque conductive material.
Further, the lower surface periphery of described cover plate also is provided for covering the shielding layer of described first perimeter circuit and described second perimeter circuit.
Further, the gap between described first direction electrode group and the described second direction electrode group is provided with insulating medium, and the refractive index of described insulating medium and described first direction electrode group and described second direction electrode group are complementary.
Further, the lower surface of described cover plate is provided with groove, and described touch-control sensing layer directly embeds and is formed on described groove.
Further, described touch-control sensing layer is for directly being formed at the single mea layers of described cover plate lower surface.
The invention provides a kind of contact panel, comprise above-mentioned touch module, and link to each other in order to control the flexible circuit board of described touch module with described touch module.
Further, described contact panel comprises that also being positioned at touch-control sensing layer side is used for shielding the screen layer of electric signal, and the protective seam that is used for protecting contact panel that is positioned at screen layer one side.
Further, described contact panel also comprises the optical compensating layer that is arranged between described cover plate and the described touch-control sensing layer.
Further, the refractive index of the refractive index of described optical compensating layer and described touch-control sensing layer is complementary.
The present invention further provides a kind of touch-control display screen, comprise the above-mentioned sensing touch-control action and produce the contact panel of corresponding touch-control sensing signal of being used for; Be used for receiving and handle above-mentioned touch-control sensing signal and produce corresponding Signal Processing device to be shown; And be used for receiving described signal to be shown and show the display of corresponding pattern.
Further, described touch-control display screen further comprises the tack coat that is arranged between described contact panel and the described display.
The present invention also provides a kind of manufacture method of touch module, may further comprise the steps:
(a) provide cover plate, described cover plate has upper surface and lower surface;
(b) form the touch-control sensing layer;
(c) described touch-control sensing layer is arranged at one-body moldedly the lower surface of described cover plate by the in-mould injection moulding, and make described upper surface form the arc-shaped curved surface structure, and described touch-control sensing layer is integrally formed at described cover plate lower surface in-moldedly, and described touch-control sensing layer and described cover plate form the arc-shaped curved surface housing with touch-control sensing function.
Further, described step (b) further comprises step: a substrate (b1) is provided; (b2) on described substrate, form touch control induction circuit.
Further, described step (c) further comprises step: (c1) described cover plate and described touch-control sensing layer are positioned in the die cavity of a Jet forming machine; (c2) injection molding material in described die cavity; (C3) die sinking forms described arc-shaped curved surface housing.
The present invention further provides a kind of manufacture method of contact panel, comprise the manufacture method of above-mentioned touch module, and form a step that links to each other flexible circuit board with described touch module.
Further, after described flexible circuit board and the bonding assembling of described touch-control sensing layer, be formed on the lower surface of described cover plate by described in-mould injection forming technique.
The manufacture method of further contact panel of the present invention comprises that also forming one is positioned at described touch-control sensing layer one side and is used for shielding the screen layer step of electric signal and forms a step of protective seam that is used for protecting described contact panel that is positioned at screen layer one side.
Beneficial effect of the present invention is, touch module of the present invention can directly combine the integrated housing of formation to the touch-control sensing layer by the technology of Inset ejection molding with cover plate, can save traditional contact panel midplane glass cover-plate and the optics glue-line between the glass substrate, save bonding process, thereby can reduce the thickness of contact panel, the out-of-flatness of avoiding occurring in the applying process, bubble and influence the optical property of contact panel and problem such as yield.In addition, because cover plate of the present invention adopts the arc-shaped curved surface structure, can satisfy the diversified demand of contact panel outward appearance, and because the present invention adopts the technology of ejection formation in the in-mould injection moulding, traditional relatively attaching process can the effective simplification procedure for producing and reduce man-hour.Therefore the present invention has very strong practicality satisfying that contact panel is lightening, can simplifying manufacture process in the high-performance, the diversified demand of outward appearance and reduce cost.
Description of drawings
Fig. 1 is the structural representation of traditional contact panel.
Fig. 2 is the schematic cross-section of contact panel traditional among Fig. 1.
Fig. 3 is the perspective view of touch module of the present invention.
Fig. 4 is the cross section structure synoptic diagram of touch module of the present invention.
Fig. 5 is the structural representation of another embodiment of touch module of the present invention.
Fig. 6 is the structural representation of first embodiment of the touch-control sensing layer of touch module of the present invention.
Fig. 7 is the structural representation of second embodiment of the touch-control sensing layer of touch module of the present invention.
Fig. 8 is the structural representation of the 3rd embodiment of the touch-control sensing layer of touch module of the present invention.
Fig. 9 is the local enlarged diagram of the 3rd embodiment of the touch-control sensing layer among Fig. 8.
Figure 10 is the structural representation of the 4th embodiment of the touch-control sensing layer of touch module of the present invention.
Figure 11 is the structural representation of the 5th embodiment of the touch-control sensing layer of touch module of the present invention.
Figure 12 A-12B is the structural representation of the touch control induction circuit of touch-control sensing layer among the 5th embodiment that shows among Figure 11.
Figure 13 is the structural representation of the 6th embodiment of the touch-control sensing layer of touch module of the present invention.
Figure 14 A-14C is a touch module forming process synoptic diagram of the present invention.
Figure 15 is the side structure synoptic diagram with contact panel of touch module of the present invention.
Figure 16 is the structural representation of touch-control display screen of the contact panel of touch module of the present invention.
Description of reference numerals:
10 traditional contact panel 11 planar glass substrates 12 glass substrates 121 sensing circuits
13 optics glue-lines, 2 touch module, 20 housings, 21 housing peripheries
22 cover plates, 23 touch-control sensing layers, 24 substrate, 25 touch control induction circuits
221 cover plate upper surfaces, 222 cover plate lower surface 222a grooves, 251 first direction electrode groups
251a first direction electrode 251b first direction lead 252 first perimeter circuits
253 second direction electrode group 253a second direction electrode 253b second direction leads
254 second perimeter circuits, 256 insulation courses
3 moulds, 31 die cavitys, 32 Jet forming machines
4 contact panels, 41 housings, 42 cover plates, 43 optical compensating layers
44 touch control induction circuits, 45 substrates, 46 screen layers, 47 protective seams
48 flexible circuit boards, 5 touch-control display screens, 51 contact panels, 52 processors
53 tack coats, 54 displays
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned by exemplary embodiment.
Fig. 3 is the perspective view of touch module of the present invention, and Fig. 4 is the cross section structure synoptic diagram of touch module of the present invention.As shown in Figure 3 and Figure 4, touch module 2 of the present invention comprises cover plate 22, touch-control sensing layer 23, and housing 20.Cover plate 22 comprises the upper surface 221 and the lower surface 222 of arc-shaped curved surface structure, and touch-control sensing layer 23 forms the arc-shaped curved surface housing 20 with touch-control sensing function by the lower surface that ejection forming technique is integrally formed at cover plate 22 in-moldedly.Housing 20 is provided with in order to coat the housing periphery 21 of cover plate 22 and touch-control sensing layer 23.Touch-control sensing layer 23 comprises substrate 24 and the touch control induction circuit 25 that is arranged on the substrate 24 is used for the sensing external influence in the touch action of cover plate 22 upper surfaces 221.
As shown in Figure 5, be the structural representation of another embodiment of touch module of the present invention.The structure of the embodiment of the demonstration among the structure of present embodiment and Fig. 3 and Fig. 4 is basic identical.Unique different place is that in the present embodiment, the lower surface 222 of cover plate 22 is provided with groove 222a, and touch-control sensing layer 23 can directly be arranged among the groove 222a.Touch module in the present embodiment is because touch-control sensing layer 23 can be formed directly among the groove 222a of cover plate 22, and with respect to the embodiment of above-mentioned touch module, the thickness of whole touch module can further reduce, and more helps satisfying the lightening demand of contact panel.
In the embodiment of above-mentioned touch module, cover plate 22 can be transparent glass cover-plate, also can be transparent plastic cover plate, as plastic cover plates such as polyethylene terephthalate (PET), polyamide, polycarbonate.
The substrate 24 of touch-control sensing layer 23 also can be transparent glass substrate or plastic base.The radian of the arc-shaped curved surface structure of the upper surface 221 of cover plate 22 is the 0-180 degree, conveniently to satisfy the demand of various appearances design.The touch control induction circuit 25 of touch-control sensing layer 23 can be that the individual layer on the substrate 24 same surfaces or double-deck circuit structure are set, and also can be arranged on double-deck circuit structure on the different surfaces of substrate 24.Between the touch control induction circuit 25 of touch-control sensing layer 23 and cover plate 22 or touch-control sensing layer 23 and the substrate 24 the optical compensating layer (not shown) can also be set, the refractive index of the refractive index of this optical compensating layer and touch control induction circuit 25 is complementary to reach better optical effect.Below just the structure of the touch-control sensing layer of above-mentioned touch module is elaborated.
As shown in Figure 6, be the structural representation of first embodiment of the touch-control sensing layer of touch module of the present invention.Touch-control sensing layer 23 in the present embodiment comprises substrate 24 and is arranged on touch control induction circuit 25 on the substrate.Touch control induction circuit 25 is the circuit structure of individual layer, many first perimeter circuits 252 that it comprises a plurality of first direction electrode groups 251 that are parallel to each other and is used for connecting first direction electrode group 251 and external circuit (not shown).First perimeter circuit 252 is connected accordingly one by one with first direction electrode group 251.In this embodiment, first direction electrode group 251 is single strip electrode.First direction electrode group 251 can be by conductive material, makes by gold-tinted technologies such as degree of spattering, etching, exposure, developments as tin indium oxide (ITO) and makes.First perimeter circuit 252 can as tin indium oxide (ITO) or opaque conductive material, be made as metal materials such as copper, silver by transparent conductive material.The method that forms first perimeter circuit 252 can be that gold-tinted technologies such as printing or above-mentioned degree of spattering, etching, exposure, development are made.When first direction electrode group 251 and first perimeter circuit 252 adopted same materials to make, both can finish in a manufacture craft, can simplify processing procedure effectively.
As a kind of distressed structure of first direction electrode group structure, second embodiment of the touch-control sensing layer of touch module of the present invention is clear the demonstration in Fig. 7.As shown in Figure 7, in the present embodiment, touch-control sensing layer 23 comprises substrate 24 and is arranged on touch control induction circuit 25 on the substrate 24.The structure of first embodiment of the structure of present embodiment and above-mentioned touch-control sensing layer is basic identical, and different places are that each the first direction electrode group 251 in the present embodiment has become two intermeshing triangular-shaped electrodes by single strip electrode.First perimeter circuit 252 still connects first direction electrode group 251 one by one to external circuits.First direction electrode group 251 in the present embodiment has been deformed into two intermeshing triangular-shaped electrodes by single strip electrode.This spline structure can make that the distribution area of the first direction electrode group 251 on the substrate 24 is bigger, helps improving the precision of the touch-control sensing of contact panel, improves the performance of contact panel.The first direction electrode group 251 in the present embodiment and the material of first perimeter circuit 252 and method for making are the same with the first direction electrode group 251 during first implements and first perimeter circuit 252, just repeat no more at this.
As Fig. 8 and shown in Figure 9, be the structural representation of the 3rd embodiment of the touch-control sensing layer of touch module of the present invention and the local enlarged diagram of the 3rd embodiment.In the present embodiment, touch-control sensing layer 23 touch control induction circuit 25 that comprises substrate 24 and be arranged on the individual layer on the substrate 24.Touch control induction circuit 25 comprises a plurality of first direction electrode groups 251, a plurality of second direction electrode groups 253 and many first perimeter circuits 252 and second perimeter circuit 254 that connect a plurality of first direction electrode groups 251 and a plurality of second direction electrode groups 253 respectively.First direction electrode group 251 and second direction electrode group 253 are arranged on substrate 24 lip-deep same one decks.First direction electrode group 251 and second direction electrode group 253 also comprise a plurality of first direction electrode 251a and a plurality of second direction electrode 253a that equidistantly arrange along second direction that equidistantly arrange along first direction, and be electrically connected by a first direction lead 251b between each adjacent first direction electrode 251a, connect (as shown in Figure 9) by a second direction lead 253b between each adjacent second direction electrode 253a.First direction lead 251b is across second direction lead 253b.In order to make first direction electrode group 251 and second direction electrode group 253 mutually insulateds, touch control induction circuit 25 comprises that also a plurality of being arranged at is used for completely cutting off the collets (indicating among the figure) that are electrically connected between the two between first direction lead 251b and the second direction lead 253b.
As the alternative distressed structure of the touch control induction circuit of above-mentioned the 3rd embodiment, showed the structural representation of the 4th embodiment of the touch-control sensing layer of touch module of the present invention as Figure 10.Touch control induction circuit 25 among the structure of the touch control induction circuit 25 of the touch-control sensing layer of present embodiment and above-mentioned the 3rd embodiment is basic identical, and unique different place is that the first direction lead 251b in the present embodiment is not across second direction lead 253b.First direction lead 251 in the present embodiment is across adjacent second direction electrode 253a and connect two adjacent first direction electrode 251a.For being electrically connected between isolated first direction lead 251b and the adjacent second direction electrode 253a, collets 256 are arranged at first direction lead 251b and the adjacent equitant zone of second direction electrode 253a.In this embodiment, first perimeter circuit 252 still connects first direction electrode group 252, the second perimeter circuits 254 accordingly one by one and connects second direction electrode group 254 accordingly one by one to external circuits.
In the structure of the touch-control sensing layer of above-mentioned all embodiment, the cover plate lower surface of touch module can be provided with shielding layer and be used for covering first perimeter circuit and second perimeter circuit to reach better visual effect.Shielding layer can be made or adopts the insulating material of other colors to make according to the demand of the mobile device that uses touch module with the insulating material of opaque black.Shielding layer can directly form the lower surface of cover plate by technologies such as printings, and can be formed on the housing by ejection forming technique together with the touch-control sensing layer.
Among above-mentioned the 3rd embodiment and the 4th embodiment, each first direction electrode group 251 and second direction electrode group 253 can be equidistantly evenly to arrange along a certain direction respectively, also can be that non-equidistance is arranged.First direction electrode group 251 and second direction electrode group 253 can be mutual homeotropic alignments, also can be non-homeotropic alignments.First direction electrode and second direction electrode are the hexagon shape, also can be that rhombus, octagon, rectangle, square, triangle, circle, ellipse or other are polygon-shaped.First direction electrode and second direction electrode can be made by transparent conductive material, as tin indium oxide ITO, indium zinc oxide or aluminum zinc oxide etc.First direction lead, second direction lead, first perimeter circuit and second perimeter circuit can be by transparent conductive materials, as ITO, be made by operations such as degree of spattering, exposure, development and etchings, also can be by metal material, as silver, copper etc., make by printing process.Collets can be made as epoxy resin, polyimide or methyl methacrylate etc. by transparent insulation material, also can be made as non-conductive printing ink by opaque insulating material.In addition, the gap between first direction electrode group and the described second direction electrode group can also be provided with insulating medium, and the refractive index of insulating medium and first direction electrode group and second direction electrode group are complementary.By the insulation insulating medium is set, first direction electrode group and second direction electrode group is more difficult is seen by the user can improve the performance of touch module.
As shown in figure 11, be the structural representation of the 5th embodiment of the touch-control sensing layer of touch module of the present invention.Touch-control sensing layer 23 in the present embodiment comprises substrate 24, be arranged on substrate 24 wherein a surface first direction electrode group 251 and be arranged at substrate 24 another surperficial second direction electrode groups 253.Touch control induction circuit in the present embodiment is to be positioned at the not odt circuit structure of coplanar of substrate, and the first direction electrode group 251 of touch control induction circuit and second direction electrode group 253 are positioned at the different surfaces of substrate 24.
Figure 12 A-12B is the structural representation of the touch control induction circuit of the touch-control sensing layer of demonstration the 5th embodiment among Figure 11.Figure 12 A and Figure 12 B showed respectively the upper surface 241 that is positioned at substrate 24 first direction electrode group 251 structure and be positioned at the structure of second direction electrode group 253 of the lower surface 242 of substrate 24.Shown in 12A, the first direction electrode group 251 of the touch control induction circuit of present embodiment is positioned on substrate 24 upper surfaces 241, first direction electrode group 251 comprises a plurality of first direction electrode 251a that are electrically connected each other, and each first direction electrode group 251 is connected to external circuits by corresponding first perimeter circuit.Shown in 12B, the second direction electrode group 253 of the touch control induction circuit of present embodiment is positioned on the lower surface 242 of substrate 24, second direction electrode group 253 comprises a plurality of second direction electrode 254a that are electrically connected each other, and each second direction electrode group 253 is connected to external circuits by corresponding second perimeter circuit.
In aforementioned the 3rd embodiment and the 4th embodiment, first direction electrode group, first perimeter circuit and second direction electrode group, second perimeter circuit all are positioned at the same surface of substrate.And in above-mentioned the 5th embodiment, first direction electrode group, first perimeter circuit and second direction electrode group, second perimeter circuit lay respectively at the different surfaces of substrate.First direction electrode group and second direction electrode group because substrate can be used for insulating in the 3rd embodiment and the 4th embodiment, do not need the collets among above-mentioned two embodiment among the 5th embodiment.The material of first direction electrode group, second direction electrode group, first perimeter circuit, second perimeter circuit all can be the same with the 4th embodiment with above-mentioned the 3rd embodiment with manufacture method among the 5th embodiment, just repeats no more at this.In addition, in the 5th embodiment, insulating medium also can be filled between each adjacent first direction electrode of first direction electrode group and the space between each adjacent second direction electrode of second direction electrode group.The refractive index of the insulating medium of being filled and first direction electrode and second direction electrode coupling get final product.
As the distortion of the another kind of touch control induction circuit structure among the 5th embodiment, Figure 13 has showed the structural representation of the 6th embodiment of the touch-control sensing layer of touch module of the present invention.As shown in figure 13, the touch-control sensing layer 23 of present embodiment comprises substrate 24 and is arranged at touch control induction circuit 25 on the substrate.Touch control induction circuit 25 comprises first direction electrode group 251, second direction electrode group 253 and the insulation course 256 that is used for preventing electrical connection between first direction electrode group 251 and the second direction electrode group 253.In the present embodiment, touch control induction circuit 25 also is an odt circuit, different with the 5th embodiment is that first direction electrode group 251 and second direction electrode group 253 lay respectively on the upper surface 241 and lower surface 242 of substrate 24 among the 5th embodiment, that is to say the not homonymy that is positioned at substrate 24.And in the present embodiment, first direction electrode group 251 and second direction electrode group 253 are all on the same side of substrate 24.In this example structure, material and the manufacture method of first direction electrode group 251 and second direction electrode group 253 all can with the 5th embodiment in the same.Insulation course 256 in the present embodiment can be made as epoxy resin, polyimide or methyl methacrylate etc. by transparent insulation material.
In above all embodiment, the touch-control sensing layer of touch module includes substrate and is arranged on touch control induction circuit on the substrate.Touch-control sensing layer of the present invention also can be the single touch control induction circuit that directly forms the cover plate lower surface, and it can be made by transparent conductive material, as tin indium oxide ITO, indium zinc oxide or aluminum zinc oxide etc.This touch control induction circuit also can be that single mea layers also can be double-deck circuit structure.Its circuit structure can adopt the structure in the foregoing description, is not just giving unnecessary details at this.
Manufacture method to touch module of the present invention is described in detail below.
Figure 14 A-14C is a touch module forming process synoptic diagram of the present invention.Shown in Figure 14 A, cover plate 22 of the present invention and touch-control sensing layer 23 are positioned in the die cavity 31 of mould 3 of injection mo(u)lding; In Figure 14 B, mould 3 closures, Jet forming machine 32 is toward die cavity 31 interior injection-molded materials; After treating shell 20 formation in the die cavity, open grinding tool 3, can obtain touch module 2 of the present invention, housing 20 is coated to the periphery (shown in Figure 14 C) of cover plate 22 touch-control sensing layers 23.
In said method, the structure of cover plate 22 and touch-control sensing layer 23 and formation method can be referring in the previous embodiment.The 4th embodiment with the touch-control sensing layer of aforementioned touch module is an example, and the method that forms the touch-control sensing layer comprises: form substrate; On substrate, form first direction electrode group; On substrate, form first perimeter circuit; Form second direction electrode group; And formation second direction electrode group.The method that forms first direction electrode group comprises the first direction leads that form a plurality of first direction electrodes and form many adjacent first direction electrodes of connection.The method that forms second direction electrode group comprises the second direction leads that form a plurality of second direction electrodes and form many adjacent second direction electrodes of connection.The processing temperature of injection molten plastic is between 200 degrees centigrade to 350 degrees centigrade in the Jet forming machine 32, temperature in the die cavity 31 between 50 degrees centigrade to 150 degrees centigrade, can allow the cover plate 22 and the touch-control sensing layer 23 that are placed on wherein keep reasonable stability greatly like this.
Figure 15 is the side structure synoptic diagram with contact panel of touch module of the present invention.Contact panel 4 comprises touch module 41 of the present invention and the flexible circuit board 42 that is connected with touch module 41 of the present invention.Flexible circuit board 42 can be connected with external controller and is used for controlling touch module 41.Contact panel 4 of the present invention can also comprise optical compensating layer 43, the screen layer 44 that is used for shielding electric signal that is positioned at the touch module opposite side, the protective seam 45 that is used for protecting contact panel that is positioned at screen layer 44 belows.Touch module 41 is positioned at the top of whole contact panel 4, and its upper surface is used for receiving extraneous touch action, and the touch-control sensing layer is used for detecting the touch-control action and sends a touching signals to flexible circuit board 42.
The manufacture method of contact panel of the present invention comprises the manufacture method of above-mentioned touch module, and the step that forms the continuous flexible circuit board of described touch module.Flexible circuit board 41 can fit on the touch module after touch module forms.In addition, flexible circuit board is formed on the lower surface of described cover plate after can assemble with the touch-control sensing layer is bonding by the in-mould injection forming technique.The optical compensating layer of contact panel of the present invention can also be arranged between described cover plate and the described touch-control sensing layer, and the refractive index of the refractive index of this optical compensating layer and described touch-control sensing layer is complementary.The manufacture method of contact panel of the present invention; also comprise the step that forms an optical compensating layer, form and to be positioned at optical compensating layer one side and to be used for shielding the step of protective seam that is used for protecting described contact panel that the screen layer step of electric signal and formation are positioned at screen layer one side.
Above-mentioned contact panel can combine with display and constitute a touch-control display screen.See also Figure 16, be the structural representation of the touch-control display screen of the contact panel that adopts touch module of the present invention.Touch-control display screen 5 comprises contact panel 51, and display 52 is arranged at the tack coat 53 between contact panel 51 and the display 52, and the processor 54 that all is connected with contact panel 51 and display 52.Tack coat 53 is used for bonding contact panel 51 and display 52, contact panel 51 is used for touch sensitive action and produce the touch-control sensing signal and a corresponding touch-control sensing signal is sent to processor 54, after processor 54 receives the touch-control sensing signal of contact panel 51 transmission, handle, produce corresponding demonstration indicator signal and also transmit the corresponding indicator signal that shows, thereby display 52 shows the pairing image information of corresponding touch action after receiving the demonstration indicator signal on display 52 to display 52.Aforementioned display device can be LCD, light-emitting diode display, OLED display etc.
Touch module of the present invention can directly combine the integrated housing of formation to the touch-control sensing layer by the technology of Inset ejection molding with cover plate, can save traditional contact panel midplane glass cover-plate and the optics glue-line between the glass substrate, save bonding process, can also save the technology that traditional contact panel and shell are fitted.Both can reduce the thickness of contact panel, the out-of-flatness of avoiding again occurring in the applying process, bubble and influence the optical property of contact panel and problem such as yield can also improve the penetrability of panel integral body.In addition, because cover plate of the present invention adopts the arc-shaped curved surface structure, can satisfy the diversified demand of contact panel outward appearance, and because the present invention adopts the technology of ejection formation in the in-mould injection moulding, traditional relatively attaching process, can the effective simplification procedure for producing and reduce man-hour, higher yield and production capacity can also be arranged.Therefore the present invention has very strong practicality satisfying that contact panel is lightening, can simplifying manufacture process in the high-performance, the diversified demand of outward appearance and reduce cost.
The above, only for preferred embodiment of the present invention, so can not limit scope of the present invention with this, i.e. the equivalence of doing according to the present patent application claim and description changes and modification, all should still belong in the scope that patent of the present invention contains.
Claims (34)
1. touch module, comprise touch-control sensing layer and cover plate, it is characterized in that: the upper surface of described cover plate is the arc-shaped curved surface structure, and described touch-control sensing layer is integrally formed at described cover plate lower surface in-moldedly, and described touch-control sensing layer and described cover plate form the arc-shaped curved surface housing with touch-control sensing function.
2. touch module as claimed in claim 1, it is characterized in that, described touch-control sensing layer comprises substrate and is arranged on touch control induction circuit on the substrate that described touch control induction circuit also comprises many first perimeter circuits of the connection that is arranged on the described substrate described first direction electrode group and external circuits.
3. touch module as claimed in claim 2 is characterized in that, described first direction electrode group is a rectangle structure.
4. as claim 2 or 3 described touch module, it is characterized in that described touch control induction circuit also comprises the electrode group of a plurality of second directions that are parallel to each other, the mutual homeotropic alignment of described second direction electrode group and described first direction electrode group forms matrix structure.
5. touch module as claimed in claim 4 is characterized in that, described touch control induction circuit also comprises many second perimeter circuits of the connection that is arranged on the described substrate described second direction electrode group and described external circuits.
6. touch module as claimed in claim 5 is characterized in that, described first direction electrode group and described second direction electrode group are arranged at the same surface of described substrate.
7. touch module as claimed in claim 5 is characterized in that, described first direction electrode group and described second direction electrode group are arranged at the different surfaces of described substrate.
8. touch module as claimed in claim 5 is characterized in that, described first direction electrode group comprises a plurality of first direction electrodes, is electrically connected each other between described a plurality of first direction electrodes; Described second direction electrode group comprises a plurality of second direction electrodes, is electrically connected mutually between described a plurality of second direction electrodes.
9. touch module as claimed in claim 8 is characterized in that, the material of described first direction electrode group and described second direction electrode group is that transparent conductive material is made.
10. touch module as claimed in claim 9 is characterized in that, the material of described first perimeter circuit and described second perimeter circuit is opaque conductive material.
11. touch module as claimed in claim 5 is characterized in that, the lower surface periphery of described cover plate also is provided for covering the shielding layer of described first perimeter circuit and described second perimeter circuit.
12. touch module as claimed in claim 5, it is characterized in that, gap between described first direction electrode group and the described second direction electrode group is provided with insulating medium, and the refractive index of described insulating medium and described first direction electrode group and described second direction electrode group are complementary.
13. touch module as claimed in claim 1 is characterized in that, the lower surface of described cover plate is provided with groove, and described touch-control sensing layer directly embeds and is formed on described groove.
14., it is characterized in that described touch-control sensing layer is for directly being formed at the single mea layers of described cover plate lower surface as claim 1 or 13 described touch module.
15. a contact panel comprises touch module as claimed in claim 1 and links to each other in order to control the flexible circuit board of described touch module with described touch module.
16. contact panel as claimed in claim 15 is characterized in that, described contact panel comprises that also being positioned at described touch-control sensing layer one side is used for shielding the screen layer of electric signal, and the protective seam that is used for protecting contact panel that is positioned at described screen layer one side.
17., it is characterized in that described contact panel also comprises the optical compensating layer that is arranged between described cover plate and the described touch-control sensing layer as claim 15 or 16 described contact panels.
18. contact panel as claimed in claim 17 is characterized in that, the refractive index of the refractive index of described optical compensating layer and described touch-control sensing layer is complementary.
19. a touch-control display screen comprises the sensing touch-control action and produce the contact panel of corresponding touch-control sensing signal of being used for as claimed in claim 15; Be used for receiving and handle above-mentioned touch-control sensing signal and produce corresponding Signal Processing device to be shown; And be used for receiving described signal to be shown and show the display of corresponding pattern.
20. touch-control display screen as claimed in claim 19 is characterized in that, described touch-control display screen comprises the tack coat that is arranged between described contact panel and the described display.
21. the manufacture method of a touch module may further comprise the steps:
(a) provide cover plate, described cover plate has upper surface and lower surface;
(b) form the touch-control sensing layer;
(c) described touch-control sensing layer is arranged at one-body moldedly the lower surface of described cover plate by the in-mould injection moulding, and make described upper surface form the arc-shaped curved surface structure, and described touch-control sensing layer is integrally formed at described cover plate lower surface in-moldedly, and described touch-control sensing layer and described cover plate form the arc-shaped curved surface housing with touch-control sensing function.
22. the manufacture method of touch module as claimed in claim 21 is characterized in that, described step (b) further comprises step: substrate (b1) is provided; (b2) on described substrate, form touch control induction circuit.
23. the manufacture method of touch module as claimed in claim 22 is characterized in that, step (b2) further comprises step (b21): be processed to form a plurality of first direction electrode groups that are parallel to each other on substrate.
24. the manufacture method of touch module as claimed in claim 23 is characterized in that, step (b2) further comprises step (b22): be processed to form many first perimeter circuits that connect described first direction electrode group and external circuits on substrate.
25. manufacture method as claim 23 or 24 described touch module, it is characterized in that, described step (b2) further comprises step (b23): be processed to form a plurality of second direction electrode groups that are parallel to each other on substrate, the mutual homeotropic alignment of described second direction electrode group and described first direction electrode group forms matrix structure.
26. the manufacture method of touch module as claimed in claim 25 is characterized in that, step (b2) further comprises step (b24): be processed to form many many second perimeter circuits that connect described second direction electrode group and described external circuits on substrate.
27. the manufacture method of touch module as claimed in claim 26 is characterized in that, described first direction electrode group comprises a plurality of first direction electrodes, is electrically connected each other between described a plurality of first direction electrodes; Described second direction electrode group comprises a plurality of second direction electrodes, is electrically connected mutually between described a plurality of second direction electrodes.
28. the manufacture method of touch module as claimed in claim 26, it is characterized in that, gap between described first direction electrode group and the described second direction electrode group is provided with insulating medium, and the refractive index of described insulating medium and described first direction electrode group and described second direction electrode group are complementary.
29. the manufacture method of touch module as claimed in claim 21 is characterized in that, described step (c) further comprises step: (c1) described cover plate and described touch-control sensing layer are positioned in the die cavity of Jet forming machine; (c2) injection molding material in described die cavity; (C3) die sinking forms described arc-shaped curved surface housing.
30. the manufacture method of touch module as claimed in claim 21 is characterized in that, the lower surface of described cover plate is provided with groove, and described touch-control sensing layer directly embeds described groove.
31. the manufacture method as claim 21 or 29 described touch module is characterized in that, described touch-control sensing layer is for directly being formed at the single mea layers of described cover plate lower surface.
32. the manufacture method of a contact panel comprises the manufacture method of touch module as claimed in claim 21, and the step of the flexible circuit board that links to each other with described touch module of formation.
33. the manufacture method of a kind of contact panel as claimed in claim 32 is characterized in that, after described flexible circuit board and the bonding assembling of described touch-control sensing layer, is formed on the lower surface of described cover plate by described in-mould injection forming technique.
34. the manufacture method of a kind of contact panel as claimed in claim 32; it is characterized in that; also comprise forming being positioned at the screen layer step that described touch-control sensing layer one side is used for shielding electric signal, and form the step of protective seam that is used for protecting described contact panel that is positioned at described screen layer one side.
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| CN2013101260887A CN103218080A (en) | 2013-04-12 | 2013-04-12 | Touch module and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101260887A CN103218080A (en) | 2013-04-12 | 2013-04-12 | Touch module and manufacture method thereof |
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| CN103218080A true CN103218080A (en) | 2013-07-24 |
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| CN2013101260887A Pending CN103218080A (en) | 2013-04-12 | 2013-04-12 | Touch module and manufacture method thereof |
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