CN107704124A - Touch screen and its preparation method and application - Google Patents
Touch screen and its preparation method and application Download PDFInfo
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- CN107704124A CN107704124A CN201710840352.1A CN201710840352A CN107704124A CN 107704124 A CN107704124 A CN 107704124A CN 201710840352 A CN201710840352 A CN 201710840352A CN 107704124 A CN107704124 A CN 107704124A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
- G06F2203/04111—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
-
- 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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
The present invention relates to display technology field, there is provided a kind of touch screen and its preparation method and application.Wherein, touch screen provided in an embodiment of the present invention, including substrate and be stacked first electrode and second electrode on the substrate, the first electrode and second electrode is arranged in a crossed manner and mutual insulating；The first electrode includes some first sub-electrodes, and each first sub-electrode is insulated from each other；The second electrode includes some second sub-electrodes, and second sub-electrode is loop configuration, and each second sub-electrode is insulated from each other.It is in strip that closure is monocyclic or the polycyclic cascaded structure of closure by the way that the second sub-electrode is set, so as to disperse stress of the touch screen in bending, and then problem of stress concentration when avoiding bending, realizes the flexible of touch screen.
Description
Technical field
The present invention relates to display technology field, and in particular to a kind of touch screen and its preparation method and application.
Background technology
With the fast development of computer technology, touch screen has obtained more wide as input medium and man-machine interface carrier
General concern and application.Capacitance type touch control screen high sensitivity, light penetration are high, have become main flow touch technology.
Capacitance type touch control screen is made up of touch control electrode, as shown in figure 1, touch control electrode 20 is parallel to each other and is spaced including a plurality of
The first electrode 22 of setting and it is a plurality of be parallel to each other and spaced second electrode 24, first electrode 22 and second electrode 24 are all
It is arranged on the same layer of the same side of substrate and interlaced.Second electrode 24 is interlocking for corresponding first electrode 22
Place 26 disconnects, and covers staggered place 26 with insulating materials, and turn on by bridged-style.
However, the touch control electrode in the technical scheme is made up of indium tin oxide (ITO), poor ductility, when screen body is bent
Easily circuit is broken.Meanwhile stacked and formed by trilaminate material at bridge joint, problem of stress concentration is also easy to produce, so as to cause passage to hinder
Value increase, have a strong impact on the touch-control sensitivity and service life of screen body.
The content of the invention
Therefore, the present invention is to solve in the prior art touch-screen bending when easily open circuit and sensitivity decline ask
Topic.
The present invention provides a kind of touch screen, including substrate and is stacked first electrode on the substrate and second
Electrode, the first electrode and second electrode is arranged in a crossed manner and mutual insulating；
The first electrode includes some first sub-electrodes, and each first sub-electrode is insulated from each other；
The second electrode includes some second sub-electrodes, and each second sub-electrode is insulated from each other；
First sub-electrode and/or second sub-electrode are loop configuration.
Alternatively, the second electrode is flexible electrode.
Alternatively, the first electrode also includes some 3rd sub-electrodes being set directly on first sub-electrode,
3rd sub-electrode is loop configuration.
Alternatively, the 3rd sub-electrode is flexible electrode.
Alternatively, the loop configuration is closure single ring architecture or the polycyclic cascaded structure of closure.
Alternatively, along perpendicular to the first sub-electrode length direction, the width of the 3rd sub-electrode is more than described the
The width of one sub-electrode；Each 3rd sub-electrode is formed in the loop configuration formed in second sub-electrode.
Alternatively, in addition to some insulating units for being formed directly on first sub-electrode, for the described first electricity
Pole and second electrode infall insulation.
Alternatively, the length of the 3rd sub-electrode is 2mm-3mm；3rd sub-electrode and the adjacent insulation list
The spacing of member is 50 μm -200 μm；Each insulating unit is arranged at intervals with each 3rd sub-electrode.
Alternatively, in addition to it is formed directly on the substrate, and covers the first electrode and the second electrode
Plasticity packed layer.
The present invention provides a kind of preparation method of touch screen, comprises the following steps：
S1, some first sub-electrodes are formed on substrate, each first sub-electrode is insulated from each other；
S2, form some insulating units on first sub-electrode；
S3, second electrode is formed on the substrate, the second electrode and the intersection of first sub-electrode are formed
On the insulating unit；The second electrode includes some second sub-electrodes, and each second sub-electrode is insulated from each other, described
First sub-electrode and/or second sub-electrode are loop configuration.
Alternatively, the step for forming the 3rd sub-electrode prepared with the second electrode with layer is also included in the step S3
Suddenly, the 3rd sub-electrode is connected with first sub-electrode, forms first electrode.
Alternatively, in addition to the first electrode and the second electrode the step of carrying out plasticity filling.
The present invention also provides a kind of touch control display apparatus, including the touch screen described in any of the above-described.
Technical solution of the present invention, have the following advantages that：
1st, touch screen provided by the invention, including substrate and it is stacked first electrode on the substrate and second
Electrode, the first electrode and second electrode is arranged in a crossed manner and mutual insulating；The first electrode includes some first sons
Electrode, each first sub-electrode are insulated from each other；The second electrode includes some second sub-electrodes, each second sub-electrode
Insulated from each other, first sub-electrode and/or second sub-electrode are loop configuration.By by the first sub-electrode and/or institute
State the second sub-electrode and be arranged to loop configuration, problem of stress concentration during bending can be avoided, realize the flexible of touch screen.
2nd, touch screen provided by the invention, along perpendicular to the first sub-electrode length direction, the 3rd sub-electrode
Width be more than first sub-electrode width；Each 3rd sub-electrode forms the annular formed in second sub-electrode
In structure.By the way that the width of the 3rd sub-electrode to be set greater than to the width of the first sub-electrode, so as to increase the 3rd sub-electrode
The surface area of the battery lead plate of place electric capacity, and then improve the precision of touch screen.
3rd, touch screen provided by the invention, wherein, the length of the 3rd sub-electrode is 2mm-3mm, the 3rd son electricity
The spacing of pole and the adjacent insulating unit is 50 μm -200 μm, each insulating unit and each 3rd sub-electrode interval
Set.By the way that each insulating unit and each 3rd sub-electrode are arranged at intervals, and the width of the 3rd sub-electrode is less than adjacent insulation
The spacing of unit, in the case where ensureing the effectively insulation of each 3rd sub-electrode, between the 3rd sub-electrode and adjacent insulating unit
Leave gap, so as to avoid bending when stress concentration the problem of.
4th, the preparation method of touch screen provided by the invention, comprises the following steps：First, some first are formed on substrate
Sub-electrode, each first sub-electrode are insulated from each other；Then, some insulating units are formed on first sub-electrode；Finally,
Second electrode is formed on the substrate, and the second electrode and the intersection formation of first sub-electrode are single in the insulation
In member；The second electrode includes some second sub-electrodes, and second sub-electrode is loop configuration, each second sub-electrode
It is insulated from each other.By the way that the second sub-electrode is arranged into loop configuration, the loop configuration can be that bar shaped closes monocyclic or closure
Polycyclic cascaded structure, problem of stress concentration during bending can be avoided, realize the flexible of contact panel.
5th, the preparation method of touch screen provided by the invention, in addition to the first electrode and the second electrode are carried out
The step of plasticity is filled.By the way that in the gap of first electrode, second electrode and first electrode and second electrode, filling is moulded
Property material, the relative position of fixed first electrode and second electrode, so as to ensure the touch screen first in BENDING PROCESS
Electrode and second electrode it is effective it is fixed, isolate, meanwhile, increase the flexibility of touch screen, and then improve the reliability of the touch screen.
6th, touch control display apparatus provided by the invention, including touch screen provided by the present invention, so as to avoid the touch-control
Problem of stress concentration when display device is bent, and then realize its flexible.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of capacitive touch screen in the prior art；
Fig. 2 is the structural representation of touch screen in the embodiment of the present invention 1；
Fig. 3 is the cross section structure schematic diagram of touch screen in the embodiment of the present invention 1；
Fig. 4 is the preparation method flow chart of touch screen in the embodiment of the present invention 2；
Fig. 5 a- Fig. 5 e are the preparation structure flow chart of touch screen in the embodiment of the present invention 2；
Reference：
Fig. 1：20- touch control electrodes；22- first electrodes；24- second electrodes；26- staggered places；
Fig. 2-Fig. 3, Fig. 5 a- Fig. 5 e:10- substrates, the sub-electrodes of 11- first；12- insulating units；The sub-electrodes of 13- the 3rd；14-
First electrode lead；The sub-electrodes of 21- second；22- second electrode leads；31- plasticity packed layers.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to which explanation, term " first ", " second ", " the 3rd " are only used for describing purpose,
And it is not intended that instruction or hint relative importance.In the accompanying drawings, for clarity, can exaggerate layer and region size and
Relative size.It should be appreciated that when element such as layer, region or substrate are referred to as " formation " or " being arranged on " another element
" on " when, the element can be arranged directly on another element, or there may also be intermediary element.On the contrary, work as element
During referred to as on " being formed directly into " or " being set directly at " another element, in the absence of intermediary element.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The present embodiment provides a kind of touch screen, as shown in Fig. 2 including substrate 10, and the Touch Zone on the substrate 10
The first electrode and second electrode that domain is stacked, the first electrode and second electrode is arranged in a crossed manner and mutually insulated；Wherein,
One electrode is the first touch control electrode of the touch screen, i.e. driving electrodes；Second electrode is the second touch control electrode of touch screen, that is, is felt
Answer electrode.
Substrate 10 in the present embodiment is flexible base board, and the material of the flexible base board is polyimides, poly terephthalic acid
One kind in glycol ester, tetrafluoroethene, glycol ester, polyethersulfone resin or the composite and flexible material containing such material.As
A kind of optional embodiment of the present embodiment, the material of the substrate 10 is polyimides, so as to improve the high temperature resistant of substrate 10
Property, corrosion resistance and electrical property, and then improve the service life of the touch screen.
As shown in Fig. 2 first electrode include it is some setting on the substrate 10 and mutually insulated the first sub-electrode 11.This
Each parallel interval of first sub-electrode 11 in embodiment is set, and regular array is on the surface of substrate 10；Wherein, in the first sub-electrode 11
On be provided with some insulating units 12, for realizing electrically isolating between the first sub-electrode 11 and second electrode, improve this
The touch accuracy of touch screen.
As a kind of optional embodiment of the present embodiment, first electrode also includes being set directly on the first sub-electrode 11
Some 3rd sub-electrodes 13, wherein, the 3rd sub-electrode 13 is arranged at intervals with insulating unit 12.As shown in Fig. 2 the arrow in figure
Direction is the length direction of the first sub-electrode 11, and the direction vertical with the direction of arrow is the first sub-electrode 11 and the 3rd sub-electrode 13
Width.On edge on the length direction of the first sub-electrode 11, by the way that the 3rd sub-electrode 13 is arranged into block, and
Its width is set greater than the width of the first sub-electrode 11, so as to increase the table of the battery lead plate of the place electric capacity of the 3rd sub-electrode 13
Area, increase capacitance, and then improve the precision of touch screen.
In addition, the 3rd sub-electrode 13 could be arranged to loop configuration, that is, single ring architecture or the polycyclic cascaded structure of closure are closed,
While ensureing that the 3rd sub-electrode 13 electrically connects with the first sub-electrode 11, resource can be saved, reduces production cost.
It is simple to describe, by taking the concrete structure of first sub-electrode 11 as an example, it is described in detail.As shown in Fig. 2 the
One sub-electrode 11 is selected from, but not limited to, strip structure, all protection models for belonging to the present invention that can realize the object of the invention
Enclose, for example, can be rhombus, circle or loop configuration, wherein, loop configuration is closure single ring architecture or the polycyclic tandem junction of closure
Structure.The 3rd sub-electrode 13 and insulating unit 12 of bulk are directly arranged at intervals on the surface of the first sub-electrode 11.As shown in figure 3,
The 3rd sub-electrode 13 and insulating unit 12 in the present embodiment are arranged at intervals, and the length d1 of the 3rd sub-electrode 13 is less than adjacent two
The spacing d2 of individual insulating unit 12, so that certain gap is left between the 3rd sub-electrode 13 and insulating unit 12, and then
Improve the flexibility of the touch screen.
As a kind of optional embodiment of this implementation, as shown in figure 3, the length d1 of the 3rd sub-electrode 13 is 2-3mm, the
The spacing d3 of three sub-electrodes 13 and adjacent insulating unit 12 is 50 μm -200 μm, due to the 3rd sub-electrode and adjacent insulation list
Spacing between member is smaller, so as to ensure the touch accuracy of the touch screen；Additionally due to spacing d3 presence, can be avoided
During bending the problem of stress concentration, and then the flexibility of the touch screen can be improved.
As another optional embodiment of the present embodiment, as shown in figure 3, the touch screen includes some touch-control lists
Member, the touch-control touch control unit include the 3rd sub-electrode 13, a close ring of the second sub-electrode 21, SI semi-insulation unit
12 and the first sub-electrode of part 11.The area of the touch control unit, equivalent to the face of each close ring of the second sub-electrode 21
Product；This area is more than or equal to the area that finger contacts with touch screen, so as to ensure preferable touch accuracy, prevents from missing
Sentence.In the present embodiment, the length d4 of touch control unit is 4mm-6mm.
In the present embodiment, by the way that each insulating unit 12 and each 3rd sub-electrode 13 are arranged at intervals, and the 3rd sub-electrode 13
Width be less than the spacing of adjacent insulating unit 12, in the case where ensureing the effectively insulation of each 3rd sub-electrode 13, the 3rd son
Leave gap between electrode 13 and adjacent insulating unit 12, so as to avoid bending when stress concentration the problem of.
Touch screen in the present invention also includes with first electrode second electrode arranged in a crossed manner and mutually insulated, in infall
The electric isolution of first electrode and second electrode is realized by insulating unit 12.Second electrode includes some second sons insulated from each other
Electrode 21, second sub-electrode 21 can be that closure is monocyclic, or bar shaped closes polycyclic cascaded structure.As shown in Fig. 2 this
In embodiment, the second sub-electrode 21 to close polycyclic cascaded structure, by a complete closed annular is changed be divided into it is some only
Vertical closed annular, and ensure all closed annular series connection, so as to disperse stress of the touch screen in BENDING PROCESS, Jin Ershi
The flexibility of existing touch screen and bending.
In the present embodiment, the second sub-electrode 21 is that multiple closed rectangulars connect to be formed, and the 3rd sub-electrode 13 is arranged on second
In the loop configuration of sub-electrode 21.It is parallel with the first sub-electrode 11 corresponding to each closed rectangular of the second sub-electrode 21
Both sides are arranged in the interval of adjacent first electrode 11, and adjacent insulating unit 12 is arranged on the both sides that first electrode is intersected
On, so as to ensure to only have in each closed annular of the second sub-electrode 21 the 3rd sub-electrode 13, and then improve touch-control
The touch accuracy of screen.
As a kind of optional embodiment of the present embodiment, the closed annular of the second sub-electrode 21 can also be annulus or
Fang Huan.
In the present embodiment, in the non-touch-control region of substrate 10 formed with some first electrode leads 14 and second electrode lead
22, the electric signal of first electrode is drawn by the first electrode lead 14, the second electrode lead 22 is by the electricity of second electrode
Signal is drawn.Further, since the second sub-electrode 21, which is bar shaped, closes polycyclic cascaded structure, corresponding to each the second sub-electrode
21 so that be connected with the relative edge of the closed annular in the length vertical direction of the first sub-electrode 11, second electrode can be reduced
The quantity of lead 22, so that the structure of the touch screen is simple, it is readily produced.
In the present embodiment, the first sub-electrode 11, one of the second sub-electrode 21 and the 3rd sub-electrode 13, Huo Zheren
Anticipate two seed electrodes, or above-mentioned three seed electrode is flexible electrode, can reach the purpose for preparing flexible touch screen.Its material
For one kind in Nano Silver, Polyglycolic acid fibre, metal grill, graphene, CNT, or its combination.It is used as this reality
A kind of optional embodiment of example is applied, the first sub-electrode 11, the second sub-electrode 21 and the 3rd sub-electrode are prepared from Nano Silver
13, so as to ensure that the touch screen has preferable translucency and pliability.
Touch screen in the present embodiment, as shown in figure 3, also including being formed directly on substrate 10, to cover the first electricity
Pole and the plasticity packed layer 31 of second electrode.The plasticity packed layer 31 be used for fill the second sub-electrode 21, the 3rd sub-electrode 13, with
And the first gap between sub-electrode 11, and these elements are fixed, isolated, so as to ensure that touch screen is being bent through
First electrode and second electrode are effectively isolated in journey, and then increase the reliability of the touch screen.In addition, so-called plasticity, that is, exist
Under external force effect, the ability being permanently deformed without destroying its integrality can stably occur for material, due to the plasticity packed layer 31
Certain deformation can be born, stress release when contributing to the contact panel to bend, and then improve the flexibility of the touch screen.The modeling
Property packed layer 31 material for epoxy resin, phenolic resin, one kind in acrylic resin or its combination, but the present invention
Protection domain is not limited to this, all can realizing plasticity filling purpose of the present invention, belongs to protection scope of the present invention.
Embodiment 2
Originally the preparation method that example provides the touch screen in embodiment 1 is applied, as shown in figure 4, comprising the following steps：
S1：Some first sub-electrodes 11 are formed on the substrate 10, and each first sub-electrode 11 is insulated from each other.
Such as Fig. 5 a, shown in Fig. 5 b, there is provided flexible base board 10, by silk-screen printing technique or sputtering, etching technics in flexibility
Touch area on substrate 10 forms the first sub-electrode 11 of bar shaped, and its non-touch-control region forms first electrode lead 14 and second
Contact conductor 22, but protection scope of the present invention is not limited to this, it is all can realize the object of the invention belong to this hair
Bright protection domain, for example, the technique such as sputtering, coating.Wherein, first sub-electrode 11 is not limited to bar shaped or ring
Shape structure, that is, close single ring architecture, or the polycyclic cascaded structure of closure.
S2：Some insulating units 12 are formed on the first sub-electrode 11；
As shown in Figure 5 c, some insulating units 12 are formed on the first sub-electrode 11, are comprised the following steps：
S21：Insulating barrier is formed on each surface of first sub-electrode 11, in the present embodiment, the material of insulating barrier is selected from but unlimited
It is all can realizing present invention insulation purpose in silica or silicon nitride, belong to protection scope of the present invention.
S22：Insulating barrier is patterned by etching technics, forms some insulating units 12, as shown in Figure 5 c, insulation
Unit 12 is bulk, and along on the length direction of the first sub-electrode 11, the width of insulating unit 12 is more than the first sub-electrode
11 width, so as to ensure being effectively isolated for the first sub-electrode 11 and the second sub-electrode 21 for being formed thereon, and then improve and touch
Control the positioning precision of screen.
S3：Second electrode is formed on the substrate 10, and second electrode and the intersection of the first sub-electrode 11 are formed in the list that insulate
In member 12；Wherein, second electrode includes some second sub-electrodes 21, and the second sub-electrode 21 is that bar shaped closure is monocyclic or closure is more
Ring cascaded structure, each second sub-electrode 21 are insulated from each other.
As fig 5d, second is prepared with layer on the first electrode by silk-screen printing technique or sputtering, etching technics
Electrode and the 3rd sub-electrode 13.Wherein, the 3rd sub-electrode 13 is formed directly into the surface of the first sub-electrode 11, and positioned at adjacent
Between insulating unit 12, the length of the 3rd sub-electrode 13 is less than the spacing of adjacent insulating unit 12 so that the 3rd sub-electrode 13
Gap be present between adjacent insulating unit 12, and then improve the flexibility of the touch screen.In addition, second electrode include it is some that
Second sub-electrode 21 of this insulation, the infall of the sub-electrode 11 of the second sub-electrode 21 and first realize electricity by insulating unit 12
Isolation.Second sub-electrode 21 is the cascaded structure that bar shaped closure is monocyclic or closure is polycyclic, as fig 5d, in the present embodiment,
Second sub-electrode 21 so as to disperse stress of the touch screen in BENDING PROCESS, and then is realized and touched to close polycyclic cascaded structure
The flexibility of control screen and bending.
As depicted in fig. 5e, the step of preparing touch screen in the present embodiment, in addition to first electrode and second electrode are carried out
The step of plasticity is filled.By techniques such as coatings, plasticity filling is formed in first electrode and the interval of second electrode and surface
Layer 31, so as to ensure that the touch screen first electrode and second electrode in BENDING PROCESS are effectively isolated, and then increase should
The reliability of touch screen；In addition, permanent deformation can stably occur for so-called plasticity, i.e., under external force, material without destroying
The ability of its integrality, because the plasticity packed layer 31 can bear certain deformation, when contributing to the contact panel to bend should
Power discharges, and then can improve the flexibility of the touch screen.
Meanwhile in the step of forming the plasticity packed layer 31, it need to ensure that it is filled up completely with of the second sub-electrode the 21, the 3rd
Gap between the sub-electrode 11 of electrode 13 and first；The He of part first electrode lead 14 of the touch screen end should also be exposed
Second electrode lead 22, for realizing the connection of touch screen and external circuit.
In addition, by least one loop configuration in the first sub-electrode 11, the second sub-electrode 21 or the 3rd sub-electrode 13
It is arranged to close single ring architecture, on the premise of dispersive stress is ensured, simplifies preparation technology, it is cost-effective；Or by ring junction
Structure is arranged to close polycyclic cascaded structure, is divided into some independent closed annulars by the way that a complete closed annular is changed, and
Ensure all closed annular series connection, so as to disperse stress of the touch screen in BENDING PROCESS, and then realize the flexibility of touch screen
And bending.
The not detailed structure of the touch screen of detailed description in the present embodiment, refer to embodiment 1, will not be repeated here.
Embodiment 3
Originally apply example and a kind of touch control display apparatus is provided, including display module and be arranged on touching on display module display surface
Control screen, the touch screen are the touch screen in embodiment 1.By the way that the second electrode of the touch screen is arranged into some be isolated from each other
Second sub-electrode 21, and second sub-electrode 21 is that bar shaped closes polycyclic cascaded structure, and by the first sub-electrode of first electrode
11 are arranged in the closed annular structure of second sub-electrode 21, so as to avoid touch screen stress concentration in bending
Problem, and then the flexible of the touch control display apparatus can be realized.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of touch screen, it is characterised in that including substrate and be stacked first electrode on the substrate and second
Electrode, the first electrode and second electrode is arranged in a crossed manner and mutual insulating；
The first electrode includes some first sub-electrodes, and each first sub-electrode is insulated from each other；
The second electrode includes some second sub-electrodes, and each second sub-electrode is insulated from each other；
First sub-electrode and/or second sub-electrode are loop configuration.
2. touch screen according to claim 1, it is characterised in that the first electrode also includes being set directly at described the
Some 3rd sub-electrodes on one sub-electrode, the 3rd sub-electrode are loop configuration.
3. touch screen according to claim 1 or 2, it is characterised in that the loop configuration be bar shaped closure it is monocyclic or
Close polycyclic cascaded structure.
4. touch screen according to claim 2, it is characterised in that along perpendicular to the first sub-electrode length direction, institute
The width for stating the 3rd sub-electrode is more than the width of first sub-electrode；Each 3rd sub-electrode is formed in the described second son electricity
In the loop configuration that pole is formed.
5. touch screen according to claim 1, it is characterised in that also include being formed directly on first sub-electrode
Some insulating units, insulated for the first electrode and the second electrode infall.
6. touch screen according to claim 5, it is characterised in that the length of the 3rd sub-electrode is 2mm-3mm；It is described
The spacing of 3rd sub-electrode and the adjacent insulating unit is 50 μm -200 μm；Each insulating unit and each 3rd son
Electrode gap is set.
7. according to the touch screen described in claim any one of 1-6, it is characterised in that also include being formed directly into the substrate
On, and cover the plasticity packed layer of the first electrode and the second electrode.
8. a kind of preparation method of touch screen, it is characterised in that comprise the following steps：
S1, some first sub-electrodes are formed on substrate, each first sub-electrode is insulated from each other；
S2, form some insulating units on first sub-electrode；
S3, second electrode is formed on the substrate, the second electrode and the intersection of first sub-electrode are formed in institute
State on insulating unit；The second electrode includes some second sub-electrodes, and each second sub-electrode is insulated from each other, and described first
Sub-electrode and/or second sub-electrode are loop configuration.
9. method according to claim 8, it is characterised in that it is same with the second electrode also to include formation in the step S3
The step of three sub-electrode prepared by layer, the 3rd sub-electrode is connected with first sub-electrode, forms first electrode.
10. a kind of touch control display apparatus, it is characterised in that including the touch screen any one of claim 1-7.
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