CN109992167A - A kind of two-sided conductive structure, touch panel and preparation method thereof - Google Patents
A kind of two-sided conductive structure, touch panel and preparation method thereof Download PDFInfo
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- CN109992167A CN109992167A CN201810001452.XA CN201810001452A CN109992167A CN 109992167 A CN109992167 A CN 109992167A CN 201810001452 A CN201810001452 A CN 201810001452A CN 109992167 A CN109992167 A CN 109992167A
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- conductive structure
- touch control
- conductive film
- conductive
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 77
- 238000005530 etching Methods 0.000 claims description 68
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 239000004744 fabric Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
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- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
Abstract
This application discloses a kind of two-sided conductive structures, touch panel and preparation method thereof, wherein, there are multiple through-holes through substrate inside the substrate of the two-sided conductive structure, and conductive structure is filled in through-hole, the first conductive film and the second conductive film for being located at the substrate both side surface are realized by the conductive structure being located in through-hole to be electrically connected.When preparing touch panel using the two-sided conductive structure, the production of the touch control electrode of touch panel can be individually or simultaneously carried out using the conductive film for being located at substrate both side surface, it can be in touch control electrode quantity and more cabling quantity, area shared by the frame of touch panel is reduced by way of being arranged in cabling and deviating from one side surface of touch control electrode, realizes narrow frame effect.And the touch-control sensitivity that touch panel can also be adjusted by realizing using the conductive film for being located at substrate both side surface and the conductive structure in through-hole, improves the applicability of the two-sided conductive structure.
Description
Technical field
This application involves technical field of touch control, more specifically to a kind of two-sided conductive structure, touch panel and its system
Preparation Method.
Background technique
With the continuous development of touch technology, touch function is all integrated in each class of electronic devices, touch panel is in electricity
The important devices of touch function are integrated in sub- equipment.
It is existing it is touch panel structure provided in, GFF (Glass Film Film) structure is the knot of mutual capacitance type touch control panel
One of structure, a plurality of first touch-control electricity for generally comprising two layers of transparent film substrate and being located in two layers of transparent film substrate
Pole and a plurality of second touch control electrode are constituted, and a plurality of first touch control electrode and second touch control electrode constitute multiple touch control capacitances, are passed through
The cabling being located in two layers of transparent film substrate is connected to touch chip, is become by touch chip according to the capacitor of touch control capacitance
Change and realizes touch control detection.Wherein, the position for cabling being arranged on every layer film will form one fixed width in subsequent encapsulation process
Frame, as demand of the people for electronic equipment narrow frame is increasingly strong, the touch panel of GFF structure is in touch-control area requirements
Also under the premise of increasingly increased, it is difficult to while meeting the requirement of large area touch-control and narrow frame, this is because with touch-control area
Increase, the quantity of touch control electrode is bound to increase, and the cabling quantity for drawing touch control electrode also can so be used with increase
It is difficult to reduce in the frame area for covering routing layer, to meet requirement of the user for electronic equipment narrow frame.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of two-sided conductive structure, touch panel and preparation method thereof,
To realize the purpose for meeting user and requiring for electronic equipment narrow frame.
To realize the above-mentioned technical purpose, the embodiment of the invention provides following technical solutions:
A kind of two-sided conductive structure, is used to prepare touch panel, and the two-sided conductive structure includes:
Substrate with multiple through-holes, the through-hole runs through the substrate, and conductive material shape is filled in the through-hole
At conductive structure；
The first conductive film positioned at one side surface of substrate；
Deviate from the second conductive film of one side surface of the first conductive film, first conductive thin positioned at the substrate
Film and the second conductive film are electrically connected with the conductive structure.
Optionally, multiple through-holes are arranged in the form of an array.
Optionally, the value range of the diameter of the through-hole is 0.05mm-1.0mm, including endpoint value；
The value range of spacing between the adjacent through-hole is 2.0mm-6.0mm, including endpoint value.
A kind of preparation method of touch panel, comprising:
First two-sided conductive structure and the second two-sided conductive structure, the first two-sided conductive structure and described second are provided
Two-sided conductive structure is two-sided conductive structure described in any of the above embodiments；
The first conductive film and/or the second conductive film of described first two-sided conductive structure are performed etching, form the
One electrode pattern, the first electrode pattern include a plurality of the first touch-control electricity arranged along first direction, extended in a second direction
Pole and a plurality of first cabling；
The first conductive film and/or the second conductive film of described second two-sided conductive structure are performed etching, form the
Two electrode patterns, the second electrode pattern include a plurality of the second touch-control electricity arranged, extended in a first direction in a second direction
Pole and a plurality of second cabling；
The first direction intersects with the second direction, a plurality of first touch control electrode and a plurality of second touch-control
Electrode constitutes multiple touch control capacitances.
Optionally, described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out
Etching, forming first electrode pattern includes:
First conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction row to be formed
Cloth, the first touch control electrode extended in a second direction；
Second conductive film of the described first two-sided conductive structure is performed etching, to form a plurality of first cabling, every
First touch control electrode passes through conductive structure at least one described first two-sided conductive structure through-hole and one article described the
The electrical connection of one cabling.
Optionally, described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out
Etching, forming first electrode pattern includes:
First conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction row to be formed
Cloth, the first conductive bar extended in a second direction；
Second conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction row to be formed
Cloth, the second conductive bar extended in a second direction and a plurality of first cabling, every first conductive bar pass through described first pair
Conductive structure and the second conductive bar head and the tail in the conductive structure through-hole of face connect and compose the first touch-control electricity
Pole, every first touch control electrode are electrically connected with first cabling.
Optionally, described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out
Etching, forming first electrode pattern includes:
The first conductive film or the second conductive film of described first two-sided conductive structure are performed etching, described in being formed
First electrode pattern.
Optionally, described that first conductive film of the described second two-sided conductive structure and/or the second conductive film are carried out
Etching, forming second electrode pattern includes:
First conductive film of the described second two-sided conductive structure is performed etching, a plurality of is arranged in a second direction with being formed
Cloth, the second touch control electrode extended in a first direction；
Second conductive film of the described second two-sided conductive structure is performed etching, to form a plurality of second cabling, every
The second touch control electrode passes through conductive structure at least one described second two-sided conductive structure through-hole and one article described the
The electrical connection of two cablings.
Optionally, described that first conductive film of the described second two-sided conductive structure and/or the second conductive film are carried out
Etching, forming second electrode pattern includes:
First conductive film of the described second two-sided conductive structure is performed etching, a plurality of is arranged in a second direction with being formed
Cloth, the third conductive bar extended in a first direction；
Second conductive film of the described second two-sided conductive structure is performed etching, a plurality of is arranged in a second direction with being formed
Cloth, the 4th conductive bar and a plurality of second cabling extended in a first direction, every third conductive bar pass through described second pair
Conductive structure and one article of the 4th conductive bar head and the tail in the conductive structure through-hole of face connect and compose one article of the second touch-control electricity
Pole, every second touch control electrode are electrically connected with second cabling.
Optionally, described that first conductive film of the described second two-sided conductive structure and/or the second conductive film are carried out
Etching, forming second electrode pattern includes:
The first conductive film or the second conductive film of described second two-sided conductive structure are performed etching, described in being formed
Second electrode pattern.
A kind of touch panel is prepared by the preparation method of touch panel described in any of the above embodiments, the touch surface
Plate includes:
First base material is located at the first base material surface and arranges along first direction, the first touch-control extended in a second direction
Electrode and a plurality of first cabling, first touch control electrode and a plurality of first cabling be located at the first base material same surface or
Different surfaces；
Second substrate is arranged in a second direction positioned at second substrate surface, the second touch-control extended in a first direction
Electrode and a plurality of second cabling, the second touch control electrode and a plurality of second cabling be located at second substrate same surface or
Different surfaces, the substrate have multiple through-holes, and the through-hole runs through the substrate, and filled with conductive knot in the through-hole
Structure；
The touch chip being electrically connected with a plurality of first touch control electrode and a plurality of second touch control electrode, described first
Direction intersects with the second direction, and a plurality of first touch control electrode and a plurality of second touch control electrode constitute multiple touch-controls
Capacitor, the touch chip are used to realize touch control detection according to the capacitance variations of the multiple touch control capacitance.
Optionally, the first direction is vertical with the second direction.
It can be seen from the above technical proposal that the embodiment of the invention provides a kind of two-sided conductive structure, touch panel and
Preparation method, wherein there are multiple through-holes through substrate inside the substrate of the two-sided conductive structure, and filled out in through-hole
Filled with conductive structure, the first conductive film and the second conductive film for being located at the substrate both side surface are by being located at through-hole
In conductive structure realize electrical connection.It, can be by substrate one when preparing touch panel using the two-sided conductive structure
Side surface forms the touch control electrode of touch panel by etching conductive film, passes through etching conductive film in another side surface of substrate
The cabling for drawing touch control electrode is formed, the cabling and touch control electrode can be electrically connected by the conductive structure realization being located in through-hole
It connects, thus in touch control electrode quantity and more cabling quantity, it can be by the way that cabling setting be being deviated from touch control electrode side table
The mode in face reduces area shared by the frame of touch panel.
Also, when preparing touch panel, substrate two sides can also be located at by utilizing using the two-sided conductive structure
The conductive film on surface and conductive structure in through-hole realize the purpose of the resistance for adjusting touch control electrode, so as to adjust
The touch-control sensitivity for saving touch panel, improves the applicability of the two-sided conductive structure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of schematic diagram for two-sided conductive structure that one embodiment of the application provides；
Fig. 2 is that a kind of two-sided conductive structure that one embodiment of the application provides prepares the schematic diagram of touch control electrode；
Fig. 3 is that a kind of two-sided conductive structure that another embodiment of the application provides prepares the schematic diagram of touch control electrode；
Fig. 4 is a kind of flow diagram of the preparation method for touch panel that one embodiment of the application provides；
Fig. 5 is a kind of flow diagram of the preparation method for touch panel that another embodiment of the application provides；
Fig. 6 is a kind of flow diagram of the preparation method for touch panel that another embodiment of the application provides；
Fig. 7 is a kind of flow diagram of the preparation method for touch panel that the further embodiment of the application provides；
Fig. 8 is a kind of flow diagram of the preparation method for touch panel that the preferred embodiment of the application provides；
Fig. 9 is a kind of process signal of the preparation method for touch panel that another preferred embodiment of the application provides
Figure；
Figure 10 is a kind of process signal of the preparation method for touch panel that another preferred embodiment of the application provides
Figure；
Figure 11 is a kind of structural schematic diagram for touch panel that one embodiment of the application provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present application provides a kind of two-sided conductive structure, as shown in Figure 1, it is used to prepare touch panel, it is described double
Face conductive structure includes:
Substrate 10 with multiple through-holes 11, the through-hole 11 runs through the substrate 10, and is filled in the through-hole 11
The conductive structure (not shown in figure 1) that conductive material is formed；
The first conductive film 20 positioned at 10 1 side surface of substrate；
The second conductive film positioned at the substrate 10 away from 20 1 side surface of the first conductive film (does not show in Fig. 1
Out), first conductive film 20 and the second conductive film are electrically connected with the conductive structure.
It should be noted that the arrangement of multiple through-holes 11 needs to meet certain requirement, avoid after the completion of etching
Accidentally by upper layer and lower layer conductive film (the first conductive film 20 and the second conductive thin in the case where being electrically connected without two layers of conductive pattern
Film) electrical connection.For example, with reference to Fig. 2, when only needing to use layer of conductive film, it is only necessary to the first conductive film 20 or
Second conductive film performs etching, will be in substrate 10 to form electrode pattern and cabling pattern in the one side of substrate 10
Through-hole 11 is all exposed, and electrode pattern or cabling pattern is avoided to pass through the conductive structure and substrate 10 other one in through-hole 11
The conductive film in face is electrically connected, and the label 31 in Fig. 2 indicates touch control electrode, and 32 indicate cabling.
But it is more often, sensitive to reach conciliation touch-control in order to realize narrow frame or reconcile the resistance of touch control electrode
When the adjusting of degree, then need to use simultaneously positioned at the first conductive film 20 of 10 two sides of substrate and the second conductive film；For example,
With reference to Fig. 3, cabling and touch control electrode can be formed in 10 two sides of substrate, it will by the conductive structure at least one through-hole 11
One cabling and a touch control electrode realize electrical connection, and the cabling positioned at the touch control electrode other side can be with the projection of touch control electrode
Area coincidence reduces the frame area for occupying touch control electrode two sides to realize, to finally realize the effect of narrow frame；Also example
Such as, the conductive film that can etch 10 two sides of substrate simultaneously forms strips of conductive structure, then the conduction by being located in through-hole 11
Structure realizes the head and the tail connection of two sides strips of conductive structure, touch control electrode is constituted, finally by the cabling for being located at 10 surface of substrate
Touch control electrode is drawn, realizes the purpose for adjusting the resistance of touch control electrode, final realization adjusts the touch-control sensitivity of touch panel
It is required that.
It should also be noted that, the thickness of the first conductive film 20 and the second conductive film positioned at 10 surface of substrate
The actual demands such as can be required according to the sheet resistance of the thickness requirement of actual touch panel, conductive film determine, the application couple
This and without limitation, specifically depending on actual conditions.
Optionally, the value range of the diameter of the through-hole 11 is 0.05mm-1.0mm, including endpoint value；Through-hole 11 it is straight
The value of diameter cannot be excessive, and the diameter to avoid through-hole 11 is excessive and goes out the case where can not avoiding adjacent touch control electrode pattern
Existing, in addition, the value of the diameter of through-hole 11 can not be too small, the resistance to avoid the conductive structure being located in through-hole 11 is excessive right
The touch-control sensitivity of touch control electrode has an impact, and is also beneficial to when using the conductive structure in a certain through-hole 11, Neng Goushi
Existing good electrical connection.
The value range of spacing between the adjacent through-hole 11 is 2.0mm-6.0mm, including endpoint value.Likewise, will
Spacing between the adjacent through-hole 11 be limited in 2.0mm-6.0mm also for guarantee when 11 array arrangement of through-hole, do not have
The case where a certain or certain through-holes 11 can not avoid touch control electrode pattern appearance.
Optionally, since touch panel is generally disposed above display panel, therefore, it is necessary to guarantee that the substrate 10 is
Bright material substrate 10, such as can be film film, it is also possible to Kapton etc..The application to this and without limitation,
Specifically depending on actual conditions.
Optionally, the conductive material for forming the conductive structure can be metal material, be also possible to conductive film material,
Such as tin indium oxide (Indium tin oxide), fluorine-doped tin oxide (F-doped Tin Oxide, FTO) etc..
Likewise, first conductive film 20 and the second conductive film can be indium tin oxide films, or fluorine
Doped stannum oxide film, but since the light transmittance of indium tin oxide films is preferable, mist degree is lower, and mature preparation process price
It is lower, therefore preferably using indium tin oxide films as first conductive film 20 and the second conductive film.
Correspondingly, the embodiment of the present application also provides a kind of preparation methods of touch panel, as shown in Figure 4, comprising:
S101: the first two-sided conductive structure and the second two-sided conductive structure, the first two-sided conductive structure and institute are provided
Stating the second two-sided conductive structure is two-sided conductive structure described in any of the above-described embodiment；
S102: the first conductive film and/or the second conductive film of the described first two-sided conductive structure are performed etching, shape
At first electrode pattern, the first electrode pattern includes a plurality of the first touching arranged along first direction, extended in a second direction
Control electrode and a plurality of first cabling；
S103: the first conductive film and/or the second conductive film of the described second two-sided conductive structure are performed etching, shape
At second electrode pattern, the second electrode pattern includes a plurality of the second touching arranged, extended in a first direction in a second direction
Control electrode and a plurality of second cabling；
The first direction intersects with the second direction, a plurality of first touch control electrode and a plurality of second touch-control
Electrode constitutes multiple touch control capacitances.
It should be noted that in actual application, a plurality of first cabling is more for drawing a plurality of first touch control electrode
The second cabling of item is for drawing a plurality of second touch control electrode, so that a plurality of first touch control electrode and a plurality of second touch control electrode are realized
With being electrically connected for touch chip, touch chip is multiple according to being made of a plurality of first touch control electrode and a plurality of second touch control electrode
Touch control capacitance carries out touch control detection.
As using two-sided conductive structure described in any of the above-described embodiment during preparing touch panel, so that
The touch control electrode and cabling of the touch panel prepared can be located at the same side of two-sided conductive structure substrate, can also be located at
Substrate it is not ipsilateral；And the resistance of touch control electrode can be by being led using the first conductive film and second for being located at substrate two sides
Conductive film is adjusted, to achieve the purpose that the touch-control sensitivity for adjusting touch panel.
Below to " the first conductive film and/or the second conductive film of the described first two-sided conductive structure are performed etching,
The concrete mode of formation first electrode pattern " carries out citing introduction:
It is described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out with reference to Fig. 5
Etching, forming first electrode pattern includes:
S1021: the first conductive film or the second conductive film of the described first two-sided conductive structure are performed etching, with shape
At the first electrode pattern.
In the present embodiment, a plurality of first touch control electrode and a plurality of cabling that the first electrode pattern includes are located at substrate
Same side surface, the conductive film positioned at substrate away from the first touch control electrode side but can need to guarantee without etching
A plurality of first touch control electrode and a plurality of cabling are not covered with the through-hole of the substrate surface, to avoid the conduction with the other side
Film electrical connection.It of course, can also be to another while substrate side forms a plurality of first touch control electrode and a plurality of cabling
The conductive film of side performs etching, and the conductive film for being covered on through-hole surfaces is etched away completely, further avoids two sides conduction
The case where material is electrically connected.
It is described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out with reference to Fig. 6
Etching, forming first electrode pattern includes:
S1022: performing etching the first conductive film of the described first two-sided conductive structure, a plurality of along first party to be formed
To arrangement, the first touch control electrode for extending in a second direction；
S1023: performing etching the second conductive film of the described first two-sided conductive structure, is walked with forming a plurality of first
Line, every first touch control electrode pass through conductive structure and one at least one described first two-sided conductive structure through-hole
The first cabling electrical connection.
In the present embodiment, a plurality of first touch control electrode and a plurality of first cabling for etching formation are located at the two of substrate
One cabling and a touch control electrode are realized electrical connection by the conductive structure at least one through-hole, are located at touching by side surface
The cabling of the control electrode other side can be overlapped with the view field of touch control electrode, reduce the side for occupying touch control electrode two sides to realize
Frame area, to finally realize the effect of narrow frame.
It is described that first conductive film of the described first two-sided conductive structure and/or the second conductive film are carried out with reference to Fig. 7
Etching, forming first electrode pattern includes:
S1024: performing etching the first conductive film of the described first two-sided conductive structure, a plurality of along first party to be formed
To arrangement, the first conductive bar for extending in a second direction；
S1025: performing etching the second conductive film of the described first two-sided conductive structure, a plurality of along first party to be formed
To arrangement, the second conductive bar and a plurality of first cabling extended in a second direction, every first conductive bar passes through described the
Conductive structure and the second conductive bar head and the tail in one two-sided conductive structure through-hole connect and compose first touching
Electrode is controlled, every first touch control electrode is electrically connected with first cabling.
In the present embodiment, strips of conductive structure is formed by etching the conductive film of substrate two sides simultaneously, then passes through position
The head and the tail connection of two sides strips of conductive structure is realized in the conductive structure in through-hole, touch control electrode is constituted, finally by positioned at base
The cabling on material surface draws touch control electrode, realizes the purpose for adjusting the resistance of touch control electrode, adjusts touch panel to reach
The purpose of touch-control sensitivity.
It is similar, for " the first conductive film and/or the second conductive film to the described second two-sided conductive structure carry out
The mode of etching, formation second electrode pattern " also carries out accordingly for example:
It is described that first conductive film of the described second two-sided conductive structure and/or the second conductive film are carried out with reference to Fig. 8
Etching, forming second electrode pattern includes:
S1031: the first conductive film or the second conductive film of the described second two-sided conductive structure are performed etching, with shape
At the second electrode pattern.
Likewise, specific points for attention refer to step S1021.
It is described that first conductive film of the described second two-sided conductive structure and/or the second conductive film are carried out with reference to Fig. 9
Etching, forming second electrode pattern includes:
S1032: performing etching the first conductive film of the described second two-sided conductive structure, a plurality of along second party to be formed
To arrangement, the second touch control electrode that extends in a first direction；
S1033: performing etching the second conductive film of the described second two-sided conductive structure, is walked with forming a plurality of second
Line, every second touch control electrode pass through conductive structure and one at least one described second two-sided conductive structure through-hole
The second cabling electrical connection.
Likewise, specific points for attention and the present embodiment, which implement advantage, refers to step S1022 and S1023.
With reference to Figure 10, first conductive film to the described second two-sided conductive structure and/or the second conductive film into
Row etching, forming second electrode pattern includes:
S1034: performing etching the first conductive film of the described second two-sided conductive structure, a plurality of along second party to be formed
To arrangement, the third conductive bar that extends in a first direction；
S1035: performing etching the second conductive film of the described second two-sided conductive structure, a plurality of along second party to be formed
To arrangement, the 4th conductive bar and a plurality of second cabling extended in a first direction, every third conductive bar passes through described the
Conductive structure and one article of the 4th conductive bar head and the tail in two two-sided conductive structure through-holes connect and compose one article of second touching
Electrode is controlled, every second touch control electrode is electrically connected with second cabling.
Likewise, specific points for attention and the present embodiment, which implement advantage, refers to step S1024 and S1025.
Correspondingly, the embodiment of the present application also provides a kind of touch panels, as shown in figure 11, by any of the above-described embodiment institute
The preparation method for the touch panel stated obtains, and the touch panel includes:
First base material 100 is located at 100 surface of first base material and arranges along first direction, the extended in a second direction
One touch control electrode 101 and a plurality of first cabling (being not shown in Figure 11), first touch control electrode 101 and a plurality of first cabling position
Same surface or different surfaces in the first base material 100；
Second substrate 200 is arranged in a second direction positioned at 200 surface of the second substrate, extended in a first direction
Two touch control electrodes 201 and a plurality of second cabling (being not shown in Figure 11), the second touch control electrode 201 and a plurality of second cabling position
Same surface or different surfaces in second substrate 200, the substrate has multiple through-holes (being not shown in Figure 11), described
Through-hole runs through the substrate, and conductive structure is filled in the through-hole；
Touch chip (the figure being electrically connected with a plurality of first touch control electrode 101 and a plurality of second touch control electrode 201
It is not shown in 11), the first direction intersects with the second direction, a plurality of first touch control electrode 101 and a plurality of described
Second touch control electrode 201 constitutes multiple touch control capacitances, and the touch chip is used to be become according to the capacitor of the multiple touch control capacitance
Change and realizes touch control detection.
Preferably, the first direction is vertical with the second direction.
On the basis of the above embodiments, in the specific embodiment of the application, three kinds of feasible touch-controls are provided
The composition scheme of electrode:
(1), a plurality of first touch control electrode 101 and a plurality of first cabling are located at the same surface of first base material 100, more
The first cabling of item draws a plurality of first touch control electrode 101, and realization is electrically connected with touch chip；
Likewise, a plurality of second touch control electrode 201 and a plurality of second cabling are located at the same table of the second substrate 200
Face, a plurality of second cabling draw a plurality of second touch control electrode 201, and realization is electrically connected with touch chip.
(2), a plurality of first touch control electrode 101 and a plurality of first cabling are located at the different surfaces of first base material 100, often
First cabling described in item is electrically connected by the conductive structure at least one through-hole with a touch control electrode, realizes the first touching
Control electrode 101 is electrically connected with touch chip；
Likewise, a plurality of second touch control electrode 201 and a plurality of second cabling are located at the different tables of the second substrate 200
Face, every second cabling are electrically connected by the conductive structure at least one through-hole with a second touch control electrode 201
It connects, realization second touch control electrode 201 is electrically connected with touch chip.
(3), a plurality of first touch control electrode 101 includes positioned at a plurality of the first of 100 both side surface of first base material
Conductive bar and a plurality of second conductive bar, every first conductive bar are led by the conductive structure realization in the through-hole with one second
The head and the tail of electric item connect, and the cabling by being located at 100 surface of first base material is drawn, and realizes the first touch control electrode 101 and touch-control
The electrical connection of chip；
Likewise, a plurality of second touch control electrode 201 includes positioned at a plurality of the of 200 both side surface of the second substrate
Three conductive bars and a plurality of 4th conductive bar, every third conductive bar are realized and one article the 4th by the conductive structure in the through-hole
The head and the tail of conductive bar connect, and the cabling by being located at 200 surface of the second substrate is drawn, and realizes second touch control electrode 201 and touching
Control the electrical connection of chip.
In (1), a plurality of first touch control electrode 101 and a plurality of cabling that the first electrode pattern includes are located at substrate
Same side surface, the conductive film positioned at substrate away from 101 side of the first touch control electrode can be without etching, but needs to guarantee
A plurality of first touch control electrode 101 and a plurality of cabling are not covered with the through-hole of the substrate surface, to avoid with the other side
Conductive film electrical connection.It of course, can also while substrate side forms a plurality of first touch control electrode 101 and a plurality of cabling
It is performed etching with the conductive film to the other side, the conductive film for being covered on through-hole surfaces is etched away completely, is further avoided
The case where two sides conductive material is electrically connected.
In (2), a plurality of first touch control electrode 101 and a plurality of first cabling that etch formation are located at the two sides of substrate
One cabling and a touch control electrode are realized electrical connection by the conductive structure at least one through-hole, are located at touch-control by surface
The cabling of the electrode other side can be overlapped with the view field of touch control electrode, reduce the frame for occupying touch control electrode two sides to realize
Area, to finally realize the effect of narrow frame.
In (3), the conductive film by etching substrate two sides simultaneously forms strips of conductive structure, then by being located at through-hole
Interior conductive structure realizes the head and the tail connection of two sides strips of conductive structure, touch control electrode is constituted, finally by positioned at substrate surface
Cabling draw touch control electrode, realize adjust touch control electrode resistance purpose, thus reach adjust touch panel touch-control spirit
The purpose of sensitivity.
In conclusion the embodiment of the present application provides a kind of two-sided conductive structure, touch panel and preparation method thereof,
In, there are multiple through-holes through substrate, and conductive structure is filled in through-hole inside the substrate of the two-sided conductive structure,
The first conductive film and the second conductive film for being located at the substrate both side surface pass through the conductive structure in through-hole
Realize electrical connection.It, can be by passing through quarter in one side surface of substrate when preparing touch panel using the two-sided conductive structure
The touch control electrode that conductive film forms touch panel is lost, is formed in another side surface of substrate by etching conductive film and draws touch-control
The cabling of electrode, the cabling and touch control electrode can realize electrical connection by the conductive structure being located in through-hole, thus touching
When controlling number of electrodes and more cabling quantity, it can be dropped by way of being arranged in cabling and deviating from one side surface of touch control electrode
Area shared by the frame of low touch panel.
Also, when preparing touch panel, substrate two sides can also be located at by utilizing using the two-sided conductive structure
The conductive film on surface and conductive structure in through-hole realize the purpose of the resistance for adjusting touch control electrode, so as to adjust
The touch-control sensitivity for saving touch panel, improves the applicability of the two-sided conductive structure.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of two-sided conductive structure, which is characterized in that be used to prepare touch panel, the two-sided conductive structure includes:
Substrate with multiple through-holes, the through-hole run through the substrate, and formed in the through-hole filled with conductive material
Conductive structure；
The first conductive film positioned at one side surface of substrate；
Positioned at the substrate deviate from one side surface of the first conductive film the second conductive film, first conductive film and
Second conductive film is electrically connected with the conductive structure.
2. two-sided conductive structure according to claim 1, which is characterized in that multiple through-holes are arranged in the form of an array.
3. two-sided conductive structure according to claim 2, which is characterized in that the value range of the diameter of the through-hole is
0.05mm-1.0mm, including endpoint value；
The value range of spacing between the adjacent through-hole is 2.0mm-6.0mm, including endpoint value.
4. a kind of preparation method of touch panel characterized by comprising
There is provided the first two-sided conductive structure and the second two-sided conductive structure, the first two-sided conductive structure and described second two-sided
Conductive structure is the described in any item two-sided conductive structures of claim 1-3；
The first conductive film and/or the second conductive film of described first two-sided conductive structure are performed etching, the first electricity is formed
Pole figure case, the first electrode pattern include it is a plurality of arrange along first direction, the first touch control electrode for extending in a second direction and
A plurality of first cabling；
The first conductive film and/or the second conductive film of described second two-sided conductive structure are performed etching, the second electricity is formed
Pole figure case, the second electrode pattern include it is a plurality of arrange in a second direction, the second touch control electrode extended in a first direction and
A plurality of second cabling；
The first direction intersects with the second direction, a plurality of first touch control electrode and a plurality of second touch control electrode
Constitute multiple touch control capacitances.
5. according to the method described in claim 4, it is characterized in that, first conduction to the described first two-sided conductive structure
Film and/or the second conductive film perform etching, and form first electrode pattern and include:
First conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction arrangement, edge to be formed
The first touch control electrode that second direction extends；
Second conductive film of the described first two-sided conductive structure is performed etching, to form a plurality of first cabling, described in every
First touch control electrode is walked by the conductive structure at least one described first two-sided conductive structure through-hole with one described first
Line electrical connection.
6. according to the method described in claim 4, it is characterized in that, first conduction to the described first two-sided conductive structure
Film and/or the second conductive film perform etching, and form first electrode pattern and include:
First conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction arrangement, edge to be formed
The first conductive bar that second direction extends；
Second conductive film of the described first two-sided conductive structure is performed etching, it is a plurality of along first direction arrangement, edge to be formed
The second conductive bar and a plurality of first cabling that second direction extends, every first conductive bar pass through the described first two-sided conduction
Conductive structure in structure through-hole and the second conductive bar head and the tail connect and compose first touch control electrode, and every
First touch control electrode is electrically connected with first cabling.
7. according to the method described in claim 4, it is characterized in that, first conduction to the described first two-sided conductive structure
Film and/or the second conductive film perform etching, and form first electrode pattern and include:
The first conductive film or the second conductive film of described first two-sided conductive structure are performed etching, to form described first
Electrode pattern.
8. according to the method described in claim 4, it is characterized in that, first conduction to the described second two-sided conductive structure
Film and/or the second conductive film perform etching, and form second electrode pattern and include:
First conductive film of the described second two-sided conductive structure is performed etching, with formed it is a plurality of arrange in a second direction, edge
The second touch control electrode that first direction extends；
Second conductive film of the described second two-sided conductive structure is performed etching, to form a plurality of second cabling, described in every
Second touch control electrode is walked by the conductive structure at least one described second two-sided conductive structure through-hole with one described second
Line electrical connection.
9. according to the method described in claim 4, it is characterized in that, first conduction to the described second two-sided conductive structure
Film and/or the second conductive film perform etching, and form second electrode pattern and include:
First conductive film of the described second two-sided conductive structure is performed etching, with formed it is a plurality of arrange in a second direction, edge
The third conductive bar that first direction extends；
Second conductive film of the described second two-sided conductive structure is performed etching, with formed it is a plurality of arrange in a second direction, edge
The 4th conductive bar and a plurality of second cabling that first direction extends, every third conductive bar pass through the described second two-sided conduction
Conductive structure in structure through-hole and one article of the 4th conductive bar head and the tail connect and compose one article of second touch control electrode, and every
The second touch control electrode is electrically connected with second cabling.
10. according to the method described in claim 4, it is characterized in that, first to the described second two-sided conductive structure is led
Conductive film and/or the second conductive film perform etching, and form second electrode pattern and include:
The first conductive film or the second conductive film of described second two-sided conductive structure are performed etching, to form described second
Electrode pattern.
11. a kind of touch panel, which is characterized in that the preparation method preparation of the touch panel as described in claim 4-10 obtains
, the touch panel includes:
First base material is located at the first base material surface and arranges along first direction, the first touch control electrode extended in a second direction
With a plurality of first cabling, first touch control electrode and a plurality of first cabling are located at same surface or the difference of the first base material
Surface；
Second substrate is arranged in a second direction positioned at second substrate surface, the second touch control electrode extended in a first direction
With a plurality of second cabling, the second touch control electrode and a plurality of second cabling are located at same surface or the difference of second substrate
Surface, the substrate have multiple through-holes, and the through-hole runs through the substrate, and conductive structure is filled in the through-hole；
The touch chip being electrically connected with a plurality of first touch control electrode and a plurality of second touch control electrode, the first direction
Intersect with the second direction, a plurality of first touch control electrode and a plurality of second touch control electrode constitute multiple touch-control electricity
Hold, the touch chip is used to realize touch control detection according to the capacitance variations of the multiple touch control capacitance.
12. touch panel according to claim 11, which is characterized in that the first direction and the second direction are hung down
Directly.
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| CN201810001452.XA CN109992167A (en) | 2018-01-02 | 2018-01-02 | A kind of two-sided conductive structure, touch panel and preparation method thereof |
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| CN201810001452.XA CN109992167A (en) | 2018-01-02 | 2018-01-02 | A kind of two-sided conductive structure, touch panel and preparation method thereof |
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