CN107589866A - Flexible touch sensing and contact panel - Google Patents
Flexible touch sensing and contact panel Download PDFInfo
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- CN107589866A CN107589866A CN201710725167.8A CN201710725167A CN107589866A CN 107589866 A CN107589866 A CN 107589866A CN 201710725167 A CN201710725167 A CN 201710725167A CN 107589866 A CN107589866 A CN 107589866A
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Abstract
The invention belongs to flexible display screen technical field, provide a kind of flexible touch sensing, by setting flexible transparent substrate, include the flexible first electrode layer and flexible second electrode layer that can transfer nesa coating, first electrode layer is needed on flexible base board, the second electrode lay is needed in first electrode layer, eliminate the cementing layer between traditional first electrode layer and the second electrode lay, effectively reduce the thickness of touch sensing, substrate transfers nesa coating with first electrode layer and the second electrode lay comprising resistant to bending simultaneously, realize bent technique effect, it is needed on additionally, due to only needing that nesa coating can be transferred in flexible transparent substrate and first electrode layer, again can finishing patterns processing procedure through exposure and development, and the step of being not necessary to additionally carry out blooming and etching striping, technique is simple, yield is high.
Description
Technical field
The invention belongs to flexible display screen technical field, more particularly to a kind of flexible touch sensing and contact panel.
Background technology
Touch-screen is because having the advantages that ease for operation, flexibility, it has also become PMC equipment and integrated information are whole
Hold primary human's interactive meanses of (such as mobile phone, tablet personal computer and super notebook computer).In the market is relatively ripe to be touched
Touch screen structure be still can not be around the touchscreen of folding with GFF, OGS, On-Cell and In-Cell 2D and 2.5D.Emerging fixed edge
The 3D touch-screens of edge curved surface and the stage that around the flexible touch screen of folding, can formally enter volume production and fast development, and it is corresponding
Touch sensing, demand thickness ultrathin, grade resistant to bending is more and more urgent.Current flexibility and the 3D of built-in edge curved surface are touched
The double-deck film+film structure sensors of screen scheme, thickness is thicker, bending resistance difference or single-layer double-side mesh (netted) structure
And individual layer bridge formation scheme sensor process is complicated and the problems such as yield is low.
The content of the invention
It is ultra-thin and resistant to bending it is an object of the invention to provide a kind of flexible touch sensing and contact panel, and technique
Relatively easy, yield is high.
To realize the purpose of the present invention, the invention provides following technical scheme：
In a first aspect, the invention provides a kind of flexible touch sensing, including flexible transparent substrate, comprising can transfer
The flexible first electrode layer and flexible second electrode layer of bright conducting film, the first electrode layer are needed on the flexible transparent substrate
On, the second electrode lay is needed in the first electrode layer, and even spread is gone back on the second electrode lay transparent stickup
Layer, the transparent adhered layer are used to be connected with cover plate；More signal lines, the signal wire are additionally provided with the flexible transparent substrate
It is connected respectively with the first electrode layer and the second electrode lay, by the first electrode layer and the second electrode lay
Electric signal is transferred to FPC.
By setting flexible transparent substrate, the flexible first electrode layer and the electricity of flexibility second that can transfer nesa coating are included
Pole layer, first electrode layer is needed on flexible base board, and the second electrode lay is needed in first electrode layer, is eliminated traditional
Cementing layer between first electrode layer and the second electrode lay, effectively reduce the thickness of touch sensing, while substrate and
One electrode layer and the second electrode lay transfer nesa coating comprising resistant to bending, realize bent technique effect, in addition
It is needed on due to only needing to transfer nesa coating in flexible transparent substrate and first electrode layer, again through exposure and development
Can finishing patterns processing procedure, and the step of be not necessary to additionally to carry out blooming and etching striping, technique is simple, and yield is high.
In the first possible implementation of first aspect, the thickness of the flexible transparent substrate is more than or equal to 10
μm and less than or equal to 100 μm.
It is that obtained process is tested in a multiplicating that the thickness of flexible transparent substrate, which is chosen, through overtesting, when flexible saturating
When the thickness of bright substrate is less than 10 μm, the bending resistance of transparency carrier is poor, frangibility, and manufacture craft requires high, production
Yield is low；When the thickness of flexible transparent substrate is more than 100 μm, the bent poor-performing of transparency carrier is not that is, pliable, and meeting
Cause overall structure thicker；So the thickness of flexible transparent substrate can be such that substrate has well when being more than 10 μm and being less than 100 μm
Flexibility, and can make to transfer nesa coating and be smoothed out transferring flow.
With reference to the possible implementation of the first of first aspect and first aspect, second in first aspect is possible
In implementation, the thickness of the first electrode layer and the second electrode lay is more than or equal to 2 μm and is less than or equal to 8 μm.
The thickness of first electrode layer and the second electrode lay, and an important factor for influence final touch sensing thickness,
Therefore, the thickness in this implementation is chosen after being repeated several times and testing, when first electrode layer and the thickness of the second electrode lay
During less than 2 μm, the bending resistance of two layers of electrode layer is poor, frangibility, and manufacture craft requires high, and production yield is low；When
When the thickness of one electrode layer and the second electrode lay is more than 8 μm, the bent poor-performing of two conductive layers is not that is, pliable, and
Overall structure can be caused thicker, therefore it is to realize invention that the thickness of first electrode layer and the second electrode lay, which is more than 2 μm and is less than 8 μm,
The key of purpose.
It is possible with reference to first aspect and second of possible implementation of first aspect, the third in first aspect
In implementation, the thickness of the flexible transparent substrate is more than or equal to 15 μm and is less than or equal to 50 μm, the first electrode
The thickness of layer and the second electrode lay is more than or equal to 3 μm and is less than or equal to 5 μm.It is arranged such, it is ensured that follow-up group
The flexible touch sensing that dress is formed can make its bending resistance preferable, be not easily broken, and manufacture craft requires low, and production is good
Higher, and can will not cause the bent better performances of flexible touch sensing, more pliable, and will not cause overall structure compared with
It is thick.
The thickness value more optimized, for realizing the object of the invention, there is important influence.
In the 4th kind of possible implementation of first aspect, first electrode pattern is included in the first electrode layer,
Including second electrode pattern on the second electrode lay, the first electrode pattern and the second electrode pattern, which are formed, intersects,
The signal wire includes the first signal wire and secondary signal line, and first signal wire electrically connects with the first electrode pattern,
The secondary signal line electrically connects with the second electrode pattern.
First electrode pattern and second electrode pattern, which are formed, intersects, for forming coupled capacitor, when for example finger presses
When, the change of coupled capacitor can be produced, and then pressing position can be positioned, for realizing touch-control effect.
It is possible with reference to first aspect and the 4th kind of possible implementation of first aspect, the 5th kind in first aspect
In implementation, the first electrode pattern and the second electrode pattern described can transfer nesa coating and obtain to be graphical
Pattern.
Nesa coating can graphically be transferred and obtain electrode pattern, technique is simple, reduces the production stage in conventional products,
And the yield that can transfer the graphical complicated technology compared to nesa coating (ITO) of conducting film improves a lot.
It is possible with reference to first aspect and the 4th kind of possible implementation of first aspect, the 6th kind in first aspect
In implementation, the flexible transparent substrate is provided with multiple first pins and multiple second pins, multiple first pins
Arranged with multiple second pins in the flexible base board designated area, for being electrically connected with FPC；The first electrode pattern
Edge is provided with multiple first electrode ports, and the second electrode pattern edge is provided with multiple second electrode ports, first electricity
Extreme mouth is electrically connected to first pin by first signal wire, and the second electrode port passes through secondary signal line electricity
It is connected to the second pin.
First electrode pattern, second electrode pattern are electrically connected to the first pin and second pin by signal wire, and connected
To FPC, the coupled capacitor as caused by FPC by such as finger pressing caused by first electrode pattern and second electrode pattern
Signal is transferred to PCB, realizes the effect of touch-control.
With reference to the first of first aspect and first aspect to the 6th kind of possible implementation, the 7th of first aspect the
In the possible implementation of kind, the nesa coating that transfers includes nano metal line or nano metal net.
Nesa coating, which can be transferred, has ultra-thin characteristic resistant to bending, and nano metal line or nano metal net size are small, people
Naked eyes can not see, be good electrode pattern material.
With reference to the first of first aspect and first aspect to the 6th kind of possible implementation, the 8th of first aspect the
In the possible implementation of kind, the signal wire is to print photosensitive or radium-shine obtained silver wire.
Because the spacing between the width and signal wire of signal wire in itself is very small, obtained using printing or Radium art
Silver wire is more preferable with respect to the effect of other materials.
Second aspect, present invention also offers a kind of contact panel, including cover plate and such as first aspect and first aspect
, to the flexible touch sensing described in the 8th kind of possible implementation, the cover plate is flexible board or bend glass for the first,
It is connected by transparent adhered layer with the flexible touch sensing.
Flexible touch sensing is connected with cover plate, you can as contact panel, the contact panel can make integration member, electricity
Sub- device fabrication manufacturer can directly purchase contact panel, be flexible board or bend glass additionally, due to cover plate, available for making
Make flexible display device or bend glass equipment.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of embodiment of the present invention or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of exploded perspective view of embodiment；
Fig. 2 is a kind of cross section structure schematic diagram of embodiment；
Fig. 3 is a kind of signal wire wiring local location schematic diagram of embodiment；
Fig. 4 is Fig. 3 close-up schematic view；
Fig. 5 is a kind of signal wire of embodiment and FPC wiring local location schematic diagrames；
Fig. 6 is Fig. 5 close-up schematic view；
Fig. 7 is a kind of FPC of embodiment structural representation；
Fig. 8 is a kind of contact panel cross section structure schematic diagram of embodiment；
Fig. 9 is the touch panel structure provided schematic diagram in Fig. 8；
Figure 10 is a kind of contact panel cross section structure schematic diagram of embodiment；
Figure 11 is the touch panel structure provided schematic diagram in Figure 10.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear
Chu, it is fully described by, it is clear that described embodiment only a part of embodiment of the present invention, rather than whole realities
Apply mode.Based on the embodiment in the present invention, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
Fig. 1 and Fig. 2 are referred to, Fig. 1 is a kind of flexible touch sensing that a kind of better embodiment of the present invention provides
Exploded perspective view, Fig. 2 is the cross section structure schematic diagram of flexible place's sensor of the present invention, and flexible touch sensing includes flexible
Transparency carrier 10, its material are flexible insulating material, such as polyimides (Polyimide, PI), makrolon (PC), polyethers
Sulfone (PES), polyethylene terephthalate (PET), PEN (PEN), polyarylate (PAR) or
The polymeric materials such as fiberglass reinforced plastics (FRP) are formed, but are not limited to this.Preferably polyimides
(Polyimide, PI), particularly colorless polyimide (Colorless Polyimide, CPI), have preferably it is resistant to bending and
Insulating properties.
Flexible first electrode layer 20 and flexible second electrode layer 30, which include, can transfer nesa coating (transparent
Conductive transfer film, TCTF, not shown), flexible first electrode layer 20 is needed in flexible transparent substrate 10,
Flexible second electrode layer 30 is needed in first electrode layer 20, and even spread is gone back on the second electrode lay 30 transparent adhered layer 40,
Transparent adhered layer 40 is used to be connected (see sequence number 70 in sequence number in Fig. 8 60 or Figure 10) with cover plate.First electrode layer 20 is, for example, to send out
(transmit) electrode layer (being commonly abbreviated as TX electrodes) is penetrated, the second electrode lay 30 is, for example, to receive (receive) electrode layer (one
As referred to as RX electrodes).In one embodiment, the method for transfer can be that first electrode layer 20 is formed by press mold technique
In in flexible transparent substrate 10, the second electrode lay 30 is formed in first electrode layer 20 by press mold technique.In a kind of embodiment party
In formula, nesa coating can be transferred and include nano metal line or nano metal net.
Transparent adhered layer 40 is OCA solid transparents optical cement, LOCA liquid clears optical cement or OCR optical clear resins.
The present invention is preferably OCA solid transparent optical cements, and thickness is preferably 25~50 μm.
Refer to Fig. 3 and Fig. 4, be additionally provided with more signal lines (101/102) in flexible transparent substrate 10, signal wire respectively with
First electrode layer 20 and the second electrode lay 30 are electrically connected, and the electric signal of first electrode layer 20 and the second electrode lay 30 is transferred to
FPC (see shown in Fig. 5 50).In one embodiment, the signal wire is to print photosensitive or radium-shine obtained silver wire (Ag).
The material of signal wire can also be golden (Au).
To be tested by being repeated several times, the thickness of flexible transparent substrate 10 is more than or equal to 10 μm and is less than or equal to 100 μm,
The thickness of first electrode layer 20 and the second electrode lay 30 is more than or equal to 2 μm and is less than or equal to 8 μm.In situations where it is preferred,
The thickness of flexible transparent substrate is more than or equal to 15 μm and is less than or equal to 50 μm, the thickness of first electrode layer and the second electrode lay
It is less than or equal to 5 μm more than or equal to 3 μm.It is arranged such, it is ensured that the flexible touch sensing that follow-up assembling is formed was both
Its bending resistance can be made preferable, be not easily broken, and manufacture craft requires low, production is good higher, and and can will not cause flexible touch
The bent better performances of sensor are controlled, it is more pliable, and overall structure will not be caused thicker.
FPC is the abbreviation of flexible PCB (Flexible Printed Circuit), is the general technology of electronics industry
Word, refer to Fig. 7, a kind of FPC of embodiment structure be include multiple wiring contacts one end (5011/5021) and
One end 503 of integrated plug, multiple wiring contacts (5011/5021) are used to be connected with the signal wire joint of touch sensing, and one
As be divided into 3 regions, refer to 5 and Fig. 6, the wiring contact 5021 of wherein intermediate region is connected with a kind of signal wire, both sides
Wiring contact 5011 is connected with another wiring contact, is integrated the 503 of plug and is used for and the mainboard PCB of mobile phone companies (not shown)
Connect.FPC is usually fold-line-shaped, and can be bent in one direction, the wiring of vertical direction can be converted into horizontal direction, favorably
Arranged in the inner space of electronic equipment.
Fig. 1, Fig. 5 and Fig. 6 are refer to, first electrode pattern 201 is included in first electrode layer 20, is wrapped on the second electrode lay 30
Include second electrode pattern 301, first electrode pattern 201 and second electrode pattern 301 are formed and intersected, in general, and intersection refers to the
One electrode pattern 201 and second electrode pattern 301 are not parallel, such as first electrode pattern 201 and the angle of second electrode pattern 301
For 90 °, or other angles etc., repeat no more.Purpose be make first electrode pattern 201 and second electrode pattern 301 it
Between form coupled capacitor.In one embodiment, first electrode pattern 201 and the cases of second electrode Figure 30 1 are that can graphically turn
The pattern that print nesa coating obtains, patterned method can be that first electrode pattern 201 is formed by chemical etching process
In in first electrode layer 20, second electrode pattern 301 is formed on the second electrode lay 30 by chemical etching process.By foregoing reality
Apply mode and understand that first electrode pattern 201 and second electrode pattern 301 can be nano metal line or nano metal net.
Fig. 3 and Fig. 4 are refer to, signal wire includes the first signal 101 and secondary signal line 102, the first signal wire 101 and
One electrode pattern 20 electrically connects, and secondary signal line 102 electrically connects with second electrode pattern 30.It should be understood that present embodiment
Can also be that the first signal wire 101 electrically connects with second electrode pattern 30, secondary signal line 301 is electrically connected with first electrode pattern 20
Connect.First signal wire 101 includes the first wiring contact 1011 and the second wiring contact 1012, and secondary signal line 102 includes
3rd wiring contact 1021 and the 4th wiring contact 1022.
Fig. 4 is refer to, flexible transparent substrate 10 is provided with multiple first pins 1011 and multiple second pins 1021, multiple
First pin 1011 and multiple second pins 1021 are arranged in the designated area of flexible base board 10, for being electrically connected with FPC50；First
The edge of electrode pattern 201 is provided with multiple first electrode ports (not shown), and second electrode pattern edge 301 is provided with the multiple second electricity
Extreme mouth (not shown), first electrode port are connected to the first pin 1011 by the first signal wire 101, and second electrode port leads to
Cross secondary signal line 102 and be connected to second pin 1021；First electrode port is connected with the first joint 1012 of the first signal wire,
Second electrode port is connected with the second joint 1022 of secondary signal line.
Fig. 8 and Fig. 9 are refer to, one embodiment of the present invention additionally provides a kind of contact panel, including the He of cover plate 60
Flexible touch sensing, cover plate 60 are flexible board and are connected by transparent adhered layer 40 with flexible touch sensing.Flexible board 60
Material can be polyimides (Polyimide, PI), particularly colorless polyimide (Colorless Polyimide,
CPI), there are preferable resistant to bending and insulating properties.The contact panel of present embodiment can be widely applied to Flexible Displays industry,
Such as flexible mobile phone, intelligent watch etc. is made.
Figure 10 and Figure 11 are refer to, one embodiment of the present invention additionally provides a kind of contact panel, real with former
The difference for applying mode is that cover plate 70 is bend glass.Bend glass can be 2.5D curved surfaces or 3D bend glasses.Due to flexibility
Touch sensing has good bending resistance, can meet the application on bend glass completely.Application direction can be song
Face frame shows mobile phone etc..
Above disclosed be only a kind of better embodiment of the present invention, can not limit the present invention's with this certainly
Interest field, one of ordinary skill in the art will appreciate that all or part of flow of above-mentioned embodiment is realized, and Yi Benfa
The equivalent variations that bright claim is made, still fall within and invent covered scope.
Claims (10)
1. a kind of flexible touch sensing, it is characterised in that including flexible transparent substrate, comprising the soft of nesa coating can be transferred
Property first electrode layer and flexible second electrode layer, the first electrode layer are needed in the flexible transparent substrate, and described second
Electrode layer is needed in the first electrode layer, and even spread is gone back on the second electrode lay transparent adhered layer, described transparent
Adhered layer is used to be connected with cover plate；Be additionally provided with more signal lines in the flexible transparent substrate, the signal wire respectively with it is described
First electrode layer connects with the second electrode lay, by the electric signal transmission of the first electrode layer and the second electrode lay
To FPC.
2. flexible touch sensing as claimed in claim 1, it is characterised in that the thickness of the flexible transparent substrate be more than or
It is less than or equal to 100 μm equal to 10 μm.
3. flexible touch sensing as claimed in claim 2, it is characterised in that the first electrode layer and the second electrode
The thickness of layer is more than or equal to 2 μm and is less than or equal to 8 μm.
4. flexible touch sensing as claimed in claim 3, it is characterised in that the thickness of the flexible transparent substrate be more than or
Be less than or equal to 50 μm equal to 15 μm, the thickness of the first electrode layer and the second electrode lay be more than or equal to 3 μm and
Less than or equal to 5 μm.
5. flexible touch sensing as claimed in claim 1, it is characterised in that include first electrode in the first electrode layer
Pattern, include second electrode pattern on the second electrode lay, the first electrode pattern and the second electrode pattern are formed
Intersect, the signal wire includes the first signal wire and secondary signal line, first signal wire and first electrode pattern electricity
Connection, the secondary signal line electrically connect with the second electrode pattern.
6. flexible touch sensing as claimed in claim 5, it is characterised in that the first electrode pattern and second electricity
Pole figure case can transfer the pattern that nesa coating obtains to be graphically described.
7. flexible touch sensing as claimed in claim 5, it is characterised in that the flexible transparent substrate is provided with multiple the
One pin and multiple second pins, multiple first pins and multiple second pins are in the flexible base board designated area
Arrangement, for being electrically connected with FPC；The first electrode pattern edge is provided with multiple first electrode ports, the second electrode figure
Case edge is provided with multiple second electrode ports, and the first electrode port is electrically connected to described first by first signal wire
Pin, the second electrode port are electrically connected to the second pin by secondary signal line.
8. the flexible touch sensing as described in claim 1 to 7 is any, it is characterised in that described to transfer nesa coating
Include nano metal line or nano metal net.
9. the flexible touch sensing as described in claim 1 to 7 is any, it is characterised in that the signal wire is photosensitive to print
Or radium-shine obtained silver wire.
A kind of 10. contact panel, it is characterised in that the flexible touch-control sensing including cover plate and as described in claim 1 to 9 is any
Device, the cover plate are flexible board or bend glass, are connected by transparent adhered layer with the flexible touch sensing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725167.8A CN107589866A (en) | 2017-08-22 | 2017-08-22 | Flexible touch sensing and contact panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710725167.8A CN107589866A (en) | 2017-08-22 | 2017-08-22 | Flexible touch sensing and contact panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107589866A true CN107589866A (en) | 2018-01-16 |
Family
ID=61042436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710725167.8A Pending CN107589866A (en) | 2017-08-22 | 2017-08-22 | Flexible touch sensing and contact panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN107589866A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415608A (en) * | 2018-03-29 | 2018-08-17 | 武汉华星光电技术有限公司 | Touch panel and its manufacturing method |
| WO2020062148A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳市柔宇科技有限公司 | Holding assembly and selfie stick |
| WO2020062157A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳市华科创智技术有限公司 | Foldable touch module, touch screen and terminal device |
| CN111796706A (en) * | 2020-05-22 | 2020-10-20 | 南昌欧菲显示科技有限公司 | Panel, preparation method thereof, touch display screen and electronic equipment |
-
2017
- 2017-08-22 CN CN201710725167.8A patent/CN107589866A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415608A (en) * | 2018-03-29 | 2018-08-17 | 武汉华星光电技术有限公司 | Touch panel and its manufacturing method |
| WO2020062157A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳市华科创智技术有限公司 | Foldable touch module, touch screen and terminal device |
| WO2020062148A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳市柔宇科技有限公司 | Holding assembly and selfie stick |
| CN112640403A (en) * | 2018-09-29 | 2021-04-09 | 深圳市柔宇科技股份有限公司 | Subassembly and from rapping bar grip |
| CN111796706A (en) * | 2020-05-22 | 2020-10-20 | 南昌欧菲显示科技有限公司 | Panel, preparation method thereof, touch display screen and electronic equipment |
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Effective date of registration: 20210413 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Applicant after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330013, Nanchang, Jiangxi, north of the Economic Development Zone Huang Jia Hu West Road, the ophelion Technology Park. Applicant before: Nanchang OFilm Tech. Co.,Ltd. |