CN109343747A - A kind of flexible touch screen and preparation method thereof - Google Patents
A kind of flexible touch screen and preparation method thereof Download PDFInfo
- Publication number
- CN109343747A CN109343747A CN201811550457.4A CN201811550457A CN109343747A CN 109343747 A CN109343747 A CN 109343747A CN 201811550457 A CN201811550457 A CN 201811550457A CN 109343747 A CN109343747 A CN 109343747A
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- China
- Prior art keywords
- touch screen
- conductive layer
- flexible touch
- transparent
- flexible
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Classifications
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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
-
- 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
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
Present invention discloses a kind of production method of flexible touch screen and its flexible touch screens, with transparent PI (polyimides) as flexible parent metal, using photosensitive silver as conductive material, make metal grill route by the method for exposure development.Since transparent PI (polyimides) and silver all have excellent folding resistance (bending angle≤2mm, foldable > 200,000 times), requirement of the flexible touch screen to substrate and conductive material folding resistance is fully met.And flexible parent metal and metal grill attainable very thin degree to realizing that flexible touch screen is lightening great benefit.This another flexible touch screen structure route is made by the method for exposure development, that is, is overcome the not high disadvantage of printing process precision, and do not need plated film and etchant flow, greatly reduced the cost of product, enhance the market competitiveness.
Description
Technical field
The present invention relates to flexible touch screen fields.
Background technique
Touch screen industry passes through the development of many years, and market competition is growing more intense.It is lighter, thinner, flexible flexible touch
Screen has become the new developing direction of touch screen industry, also becomes the new hot spot for competition of touch screen industry.
Traditional touch screen is using glass as substrate, and the hard characteristic of glass itself determines that it does not have flexible function
Energy.Common flexible touch screen is mainly with COP (cyclic olefin polymer) for substrate currently on the market, but COP itself is relatively partially
Thick (40um or more), the performance of another COP substrate fold resistant are also very limited (bending angle 2mm, foldable < 8,000 times).These
Disadvantage, which determines, must have more good flexible parent metal to be just able to satisfy requirement of the flexible touch screen to substrate.
It is that conductive material can not be used as soft due to ITO not folding itself that conventional touch screen, which is with ITO (tin indium oxide),
Property conductive material use.Therefore, it is necessary to which the conductive material for finding fold resistant could match the flexible function of flexible touch screen.
The route of touch screen is usually the method production for passing through printing or plated film etching, but the method precision printed is not high,
It is difficult to meet the required precision of product.And the method flow of plated film etching is more, at high cost, the competition without market of production
Power.
Summary of the invention
The technical problem to be solved by the present invention is to realize a kind of flexibility easy to make, facilitating promotion touch screen quality
Technology for manufacturing touch screen, and the flexible touch screen made by the manufacture craft.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of flexible touch screen, successively by transparent PI
Layer, the first conductive layer, the first insulating layer, the second conductive layer and second insulating layer are constituted.
Described transparent PI layers are formed by being coated on to make on plane hardware, and the transparent PI thickness degree is in 10um or less.
The figure of first conductive layer and the second conductive layer is metal mesh.
The material of first conductive layer and the second conductive layer is negativity photosensitive material.
A method of making the flexible touch screen:
Step 1 makes PI layers of layer of transparent using the mode of coating on plane hardware；
Step 2 makes the first conductive layer on PI layers transparent；
Step 3 makes the first insulating layer on the first conductive layer；
Step 4 makes the second conductive layer on the first insulating layer；
Step 5 makes second insulating layer on the second conductive layer；
Step 6 separates transparent PI layers with plane hardware.
In the step 1, the transparent PI thickness degree of coating method production is in 10um or less.
The sum of thickness of first conductive layer and the second conductive layer is thickness 5um.
First conductive layer and the second conductive layer are negativity photosensitive material, and the step 2 and step 4 pass through exposure development
Mode makes the route of conductive layer.
The plane hardware is plate glass.
Flexible touch screen structure of the present invention and preparation method thereof, it with transparent PI (polyimides) as flexible parent metal, with
Photosensitive silver makes metal grill route as conductive material, by the method for exposure development.Due to transparent PI (polyimides) and
Silver all has excellent folding resistance (bending angle≤2mm, foldable > 200,000 times), fully meet flexible touch screen to substrate and
The requirement of conductive material folding resistance.And flexible parent metal and metal grill attainable very thin degree to realize flexible touch screen
It is lightening to have great benefit.This another flexible touch screen structure route is made by the method for exposure development, that is, overcomes printing
The not high disadvantage of method precision, and plated film and etchant flow are not needed, the cost of product is greatly reduced, market competition is enhanced
Power.
Detailed description of the invention
The content of width attached drawing every in description of the invention expression is briefly described below:
Fig. 1 is flexible touch screen structural schematic diagram of the present invention；
Label is followed successively by Fig. 1: 1, PI layers transparent；2, the first conductive layer；3, the first insulating layer；4, the second conductive layer；5,
Second insulating layer.
Specific embodiment
Flexible touch screen includes flexible parent metal and the touch conductive layer positioned at flexible parent metal surface, as shown in Figure 1, flexible
The flexible parent metal of touch screen structure is with transparent PI layer 1, the first conductive layer 2 being made on transparent PI layer 1, is made in the first conduction
The first insulating layer 3 above layer 2, the second conductive layer 4 being made in above the first insulating layer 3, and be made on the second conductive layer 4
The second insulating layer 5 in face.
Flexible parent metal for material, is made on hardware using the mode of coating with transparent PI (polyimides), utilizes hardware
Glass plate can be used, on the one hand, the flexible parent metal thickness of this method production is up to 10um hereinafter, and other methods are difficult
So thin substrate is obtained, the frivolous requirement of flexible touch screen is met；On the other hand, the flexible parent metal of this method production, because
There is the support of hardware, is unlikely to deform, the production of very convenient follow-up process.Meanwhile the flexible parent metal of this method production has
Excellent folding resistance (bending angle≤2mm, foldable > 200,000 times), fully meets the flexible requirement of flexible touch screen, this
And other substrates can not be compared.
The first conductive layer 2 and the second conductive layer 4, conductive material are photosensitive in the touch conductive layer on flexible parent metal surface
Silver is a kind of negativity photosensitive material.This material can make route by the method for exposure development, both can with gram
The not high problem of printing process precision is taken, and needs not move through plated film and etching, the process of production is considerably reduced, reduces
The cost of product.Meanwhile this conductive material route has excellent folding resistance (bending angle≤2mm, foldable > 200,000
It is secondary), this is that conventional conductive material can not be compared, thus meet requirement of the flexible touch screen to conductive material folding resistance.
First conductive layer 2 and the second conductive layer 4 in the touch conductive layer on flexible parent metal surface, figure are metal grill.
Conventional metal grill product is usually made, double layer of metal net by double layer of metal grid using OCA glue by the method for fitting
Lattice add OCA glue overall thickness at least 150um.Flexible touch screen structure provided by the invention, twice are conductive in touch conductive layer
Layer and twice insulating layer are relatively thin, overall thickness 5um, pass through the method production of fitting, thickness relative to common metal mesh products
There is breakthrough decline, development lightening to flexible touch screen has very big benefit.
The flexible touch screen structure made by the above method, due to transparent PI (polyimides) and it is silver-colored all have it is excellent
Folding resistance (bending angle≤2mm, foldable > 200,000 times), the shortcomings that overcoming conventional substrate and conductive material not folding.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (9)
1. a kind of flexible touch screen, it is characterised in that: successively by PI layers transparent, the first conductive layer, the first insulating layer, the second conduction
Layer and second insulating layer are constituted.
2. flexible touch screen according to claim 1, it is characterised in that: described transparent PI layers by being coated on plane hardware
Upper production molding, the transparent PI thickness degree is in 10um or less.
3. flexible touch screen according to claim 1 or 2, it is characterised in that: first conductive layer and the second conductive layer
Figure be metal mesh.
4. flexible touch screen according to claim 3, it is characterised in that: the material of first conductive layer and the second conductive layer
Matter is negativity photosensitive material.
5. a kind of method of production flexible touch screen as described in any in claim 1-4, it is characterised in that:
Step 1 makes PI layers of layer of transparent using the mode of coating on plane hardware；
Step 2 makes the first conductive layer on PI layers transparent；
Step 3 makes the first insulating layer on the first conductive layer；
Step 4 makes the second conductive layer on the first insulating layer；
Step 5 makes second insulating layer on the second conductive layer；
Step 6 separates transparent PI layers with plane hardware.
6. the production method of flexible touch screen according to claim 5, it is characterised in that: in the step 1, coating method
The transparent PI thickness degree of production is in 10um or less.
7. the production method of flexible touch screen according to claim 6, it is characterised in that: first conductive layer and second
The sum of thickness of conductive layer is thickness 5um.
8. according to the production method of flexible touch screen described in claim 5,6 or 7, it is characterised in that: first conductive layer
It is negativity photosensitive material with the second conductive layer, the step 2 and step 4 make the route of conductive layer by exposure development mode.
9. the production method of flexible touch screen according to claim 8, it is characterised in that: the plane hardware is plate glass
Glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550457.4A CN109343747A (en) | 2018-12-18 | 2018-12-18 | A kind of flexible touch screen and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550457.4A CN109343747A (en) | 2018-12-18 | 2018-12-18 | A kind of flexible touch screen and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109343747A true CN109343747A (en) | 2019-02-15 |
Family
ID=65304313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550457.4A Pending CN109343747A (en) | 2018-12-18 | 2018-12-18 | A kind of flexible touch screen and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109343747A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110399058A (en) * | 2019-08-13 | 2019-11-01 | 芜湖长信科技股份有限公司 | A kind of foldable touch screen |
| CN110502147A (en) * | 2019-08-12 | 2019-11-26 | 隽美经纬电路有限公司 | A kind of flexibility touch screen display board and preparation method thereof and application |
| CN114216487A (en) * | 2021-11-18 | 2022-03-22 | 大连理工大学 | Touch sensor with high transparency and stretchable capacitor and preparation method thereof |
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| CN101278607A (en) * | 2005-09-30 | 2008-10-01 | 富士胶片株式会社 | Method of manufacturing conductive film and photosensitive material for manufacturing conductive film |
| KR20130091518A (en) * | 2012-02-08 | 2013-08-19 | (주)이엔에이치 | Electrostatic capacity type touch screen panel and method for fabricating the same |
| CN104160365A (en) * | 2012-03-08 | 2014-11-19 | 日本写真印刷株式会社 | Flexible touch panel |
| CN106170751A (en) * | 2014-05-16 | 2016-11-30 | 富士胶片株式会社 | Touch panel conducting strip and capacitive touch panel |
| CN107920425A (en) * | 2017-10-12 | 2018-04-17 | 华东师范大学 | A kind of flexible thin film circuit preparation method |
| CN207586885U (en) * | 2017-12-25 | 2018-07-06 | 信利光电股份有限公司 | A kind of flexible bendable CTP and electronic equipment |
| CN108762572A (en) * | 2018-05-31 | 2018-11-06 | 信利光电股份有限公司 | A kind of touch screen and production method and a kind of mobile terminal |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278607A (en) * | 2005-09-30 | 2008-10-01 | 富士胶片株式会社 | Method of manufacturing conductive film and photosensitive material for manufacturing conductive film |
| KR20130091518A (en) * | 2012-02-08 | 2013-08-19 | (주)이엔에이치 | Electrostatic capacity type touch screen panel and method for fabricating the same |
| CN104160365A (en) * | 2012-03-08 | 2014-11-19 | 日本写真印刷株式会社 | Flexible touch panel |
| CN106170751A (en) * | 2014-05-16 | 2016-11-30 | 富士胶片株式会社 | Touch panel conducting strip and capacitive touch panel |
| CN107920425A (en) * | 2017-10-12 | 2018-04-17 | 华东师范大学 | A kind of flexible thin film circuit preparation method |
| CN207586885U (en) * | 2017-12-25 | 2018-07-06 | 信利光电股份有限公司 | A kind of flexible bendable CTP and electronic equipment |
| CN108762572A (en) * | 2018-05-31 | 2018-11-06 | 信利光电股份有限公司 | A kind of touch screen and production method and a kind of mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502147A (en) * | 2019-08-12 | 2019-11-26 | 隽美经纬电路有限公司 | A kind of flexibility touch screen display board and preparation method thereof and application |
| CN110399058A (en) * | 2019-08-13 | 2019-11-01 | 芜湖长信科技股份有限公司 | A kind of foldable touch screen |
| CN114216487A (en) * | 2021-11-18 | 2022-03-22 | 大连理工大学 | Touch sensor with high transparency and stretchable capacitor and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |
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| RJ01 | Rejection of invention patent application after publication |