CN102033671B - Conductive film complex structure body, capacitive touch screen and its use preparation method - Google Patents
Conductive film complex structure body, capacitive touch screen and its use preparation method Download PDFInfo
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- CN102033671B CN102033671B CN201010507218.8A CN201010507218A CN102033671B CN 102033671 B CN102033671 B CN 102033671B CN 201010507218 A CN201010507218 A CN 201010507218A CN 102033671 B CN102033671 B CN 102033671B
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- film
- base material
- capacitive touch
- structure body
- complex structure
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Abstract
The invention discloses a kind of manufacture method of ultra-thin Film capacitive touch screen.Each layer circuit structure of ultra-thin Film capacitive touch screen uses ultra-thin ITO film materials.In preparation process, this ultra-thin ITO film material is to bond to form complex structure body with a base material, realizes printing, etches and fits, and finally removes the base material, realizes ultra-thin Film capacitive touch screen.
Description
Technical field
The present invention relates to film (film) capacitive touch screen and its technology of preparing, more particularly to conductive film composite construction
Body, capacitive touch screen and its use preparation method.
Technical background
Touch-screen is a kind of input equipment for significantly improving man machine operation interface, with directly perceived, simple, efficiently advantage.
Touch-screen has been obtained for being widely applied in many electronic products, such as mobile phone, PDA, multimedia, public information inquiry system
System etc..Touch-screen mainly has following four classes, including resistance-type, condenser type, infrared and surface acoustic wave touch screen.
In the past, due to structure and drive the limitation of cost, and many shortcomings, capacitive touch screen such as touch-control distortion
Operation strategies it is very narrow.In the recent period, updating due to structure and signal processing technology, capacitive touch screen is gradually emerging
Rise.In these new capacitive touch screens, because eliminating the labyrinth of touch screens, different touch-control sides are employed
Formula, shows better performance, such as, do not have a mechanical movement wear problem in screen, and simple structure, light transmittance it is high,
Even if the linearity is good, dust-proof, fire prevention, it is scratch resistant, also there is performance of stabilization etc. in worst environment.Capacitive touch screen
The advantage of another aspect is that it can realize that multi-point touch function, i.e. user can simultaneously carry out multiple point touching signal by it
It is input into, realizes multiple spot while operating to complete specific action, such as the function of amplification, diminution, rotation etc..
Now, there are two big types in capacitive touch screen, and one is Glass capacitive touch screens, and another kind of is thin-film capacitor
Formula touch-screen.The touch-control principle of this two classes touch-screen is the same, but, its structure is different with manufacturing process.With respect to Glass electric capacity
For formula touch-screen, thin-film capacitive touch screen has the advantage that：(1) manufacturing process is silk-screen printing --- it is simple and fast
It is prompt；(2) producing line cost of investment is low；(3) thickness of touch-screen can be made thinner.Therefore, the research of thin-film capacitive touch screen with
Exploitation is more and more.In order to obtain ultrathin film condenser type, it is necessary to using ultra-thin ito thin film (ITO film) material, such as
Thickness is 50 μm or less.But, in the manufacture of touch-screen, the making for ultra-thin ito thin film (ITO film) is very
It is difficult, it is impossible to using technology and technique ripe in current touch-screen.
The content of the invention
It is an object of the invention to provide the conductive film complex structure body for manufacturing ultra-thin capacitive touch screen.
It is a kind of manufacture capacitive touch screen conductive film complex structure body, including it is bonded to each other or bonding at least one
Ito thin film and at least a base material, an at least ito thin film are arranged at the surface of the base material one；The thickness of the base material is 50 μ
M~100 μm.
Further, conductive film complex structure body also includes tack coat, for bonding an at least ito thin film and institute
State an at least base material.
Further, the tack coat is two-sided tape.
Further, an at least ito thin film and an at least base material are bonded to each other by Electrostatic Absorption.
Further, an at least base material is organic sheet.
Further, the base material is PET.
The present invention also provides the manufacture method of a kind of ultra-thin capacitive touch screen and ultra-thin capacitive touch screen.
A kind of manufacture method of thin-film capacitive touch screen, comprises the following steps：
Ito thin film and base material bonding or the complex structure body of Electrostatic Absorption formation bonded to each other are provided；
Composite construction is fitted by transparent optical cement with a face glass；
The base material is removed to form thin-film capacitive touch screen.
Further, it is further comprising the steps of：Protection ink is formed on ito thin film.
Further, it is further comprising the steps of：The etching of ito thin film is formed into conductive pattern and in ito thin film edge shape
Into silver electrode lead wires.
Further, it is further comprising the steps of：Composite construction and FPC are pressed into binding.
Further, the thickness of the base material is 50 μm~100 μm.
A kind of ultrathin film capacitive touch screen obtained in above method, an including at least thickness is 25 μm~50 μm
Ito thin film.
Relatively existing thin-film capacitor screen, is arranged on relatively thick base material by by many ito thin films of relative thin,
Complex structure body will be formed again to be fitted with face glass, relatively thick base material will finally be removed, is reduced and ito thin film is damaged, carry
Thin-film capacitor screen production yield high, and new technology or equipment need not be used, prepare ultrathin film capacitive touch screen.
Brief description of the drawings
The structural representation of Fig. 1 capacitive touch screens of the present invention.
The complex structure body schematic diagram that Fig. 2 ito thin films of the invention are formed with the bonding of base material.
Specific embodiment
With reference to specification drawings and specific embodiments, the present invention is described further, but the present invention is protected
Scope be not limited thereto.
Fig. 1 is the structure of capacitive touch screen.Capacitive touch screen include facial (1), Sensor structures (2), FPC (3),
Touch screen controller IC (4) and tack coat (5).Past, panel (1) is usually to be prepared by strengthened glass, and its lower surface is printing
Color decorative ink.Sensor structures (2) are the physical sensing part of touch-screen, and it forms electricity between the finger for touching
Hold, for recognizing finger touch position and touching the quantity of finger.There are two classes in Sensor structures (2), one is Glass knots
Structure, it is the ITO pattern that there is electrically conducting transparent on Glass surfaces；Another kind of is membrane structure, is deposited on single-layer PET base material
All there is the ITO pattern of electrically conducting transparent in the ITO pattern of electrically conducting transparent or on multilayer PET base material.Therefore, according to
The difference of Sensor structures (2), capacitive touch screen is also classified into two classes, and a class is Glass capacitive touch screens, and another kind of is thin
Membrane capacitance formula touch-screen.Design requirement according to different chip companies is different, even if being all Glass capacitive touch screens, its
ITO pattern and glass structure on Glass is also different；Thin-film capacitive touch screen is also such.Therefore this patent will not be limited
In schematic diagram of the invention or explanation.
For thin-film capacitive touch screen, its main processing procedure is：(1) ito thin film surface printing ITO protections ink, (2) erosion
Carve, print Ag lines, (3) paste transparent optical cement (abbreviation OCA), and (4) press FPC, and (5) combine to form touch-screen with face glass.
In order to ensure the manipulation strength of material, the thickness of conventional ito thin film is 125 μm or 188 μm at present.It is ultra-thin in order to obtain
Thin-film capacitive touch screen is even more thin, it is necessary to the thickness of above-mentioned ito thin film is down into 50 μm, such as 25 μm.In order to use
Above-mentioned technique, is 25~50 μm ultra-thin by thickness before the preparation of capacitive touch screen the invention provides solution
Ito thin film (6) is bonded with a base material (7), forms complex structure body.The thickness of base material (7) is 50~100 μm.With it,
Then the thickness of complex structure body is often beyond 100 μm, it is ensured that the manipulation strength requirement in processing procedure.Fig. 2 is of the invention
The complex structure body schematic diagram that ito thin film is formed with the bonding of base material, it includes ultra-thin ito thin film (6), base material (7) and centre
Tack coat (8).If ultra-thin ito thin film (6) is bonded by the way of electrostatic with base material (7), tack coat can be removed.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of manufacture method of thin-film capacitive touch screen, it is characterised in that comprise the following steps：
Ito thin film and base material bonding or the complex structure body of Electrostatic Absorption formation bonded to each other are provided；
Protection ink is formed on ito thin film；
Ito thin film is etched to form conductive pattern and form silver electrode lead wires at ito thin film edge；
Complex structure body and FPC are pressed into binding；
The complex structure body is fitted by transparent optical cement with a face glass；
The base material is removed to form thin-film capacitive touch screen.
2. the manufacture method of thin-film capacitive touch screen as claimed in claim 1, it is characterised in that the thickness of the base material is
50 μm~100 μm.
3. the electricity that the manufacture method of the thin-film capacitive touch screen in a kind of application claim 1-2 described in any one is manufactured
The conductive film complex structure body of appearance formula touch-screen, it is characterised in that including bonded to each other or bonding an at least ito thin film
An at least base material, an at least ito thin film is arranged at the surface of the base material one；The thickness of the base material is 50 μm~100 μ
M, after the conductive film complex structure body is fitted with face glass, the base material is removed.
4. conductive film complex structure body as claimed in claim 3, it is characterised in that also including tack coat, for bonding
State an at least ito thin film and an at least base material.
5. conductive film complex structure body as claimed in claim 4, it is characterised in that the tack coat is two-sided tape.
6. conductive film complex structure body as claimed in claim 3, it is characterised in that an at least ito thin film and at least
One base material is bonded to each other by Electrostatic Absorption.
7. conductive film complex structure body as claimed in claim 3, it is characterised in that an at least base material is biochip
Material.
8. conductive film complex structure body as claimed in claim 7, it is characterised in that an at least base material is PET.
9. one kind ultrathin film capacitive touch screen according to obtained in claim 1 to 2 any one, it is characterised in that including
An at least thickness is 25 μm~50 μm of ito thin film.
10. thin-film capacitive touch screen as claimed in claim 9, it is characterised in that including two-layer or multilayer ito thin film,
The thickness of each layer of ito thin film is 25 μm~50 μm.
11. thin-film capacitive touch screens as claimed in claim 9, it is characterised in that the ito thin film edge also forms electrode
Lead, the contact conductor is obtained using ag material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010507218.8A CN102033671B (en) | 2010-10-13 | 2010-10-13 | Conductive film complex structure body, capacitive touch screen and its use preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010507218.8A CN102033671B (en) | 2010-10-13 | 2010-10-13 | Conductive film complex structure body, capacitive touch screen and its use preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102033671A CN102033671A (en) | 2011-04-27 |
| CN102033671B true CN102033671B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010507218.8A Expired - Fee Related CN102033671B (en) | 2010-10-13 | 2010-10-13 | Conductive film complex structure body, capacitive touch screen and its use preparation method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722303A (en) * | 2012-06-04 | 2012-10-10 | 格林精密部件（惠州）有限公司 | Capacitive touch screen with single-layer structure |
| CN103345344A (en) * | 2013-07-15 | 2013-10-09 | 深圳南玻显示器件科技有限公司 | Method for manufacturing thin-film capacitive touch screen |
| CN104199571B (en) * | 2014-08-14 | 2018-07-27 | 深圳豪威显示科技有限公司 | The production method of fexible film functional sheet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728071A (en) * | 2004-07-29 | 2006-02-01 | 义隆电子股份有限公司 | Capacitance type touch pad of using film, and preparing method |
| CN201465083U (en) * | 2009-05-21 | 2010-05-12 | 意力(广州)电子科技有限公司 | Monolayer conductive film capacitive touch screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4794392B2 (en) * | 2006-08-21 | 2011-10-19 | 富士通コンポーネント株式会社 | Touch panel with curved surface and method for manufacturing the same |
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2010
- 2010-10-13 CN CN201010507218.8A patent/CN102033671B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728071A (en) * | 2004-07-29 | 2006-02-01 | 义隆电子股份有限公司 | Capacitance type touch pad of using film, and preparing method |
| CN201465083U (en) * | 2009-05-21 | 2010-05-12 | 意力(广州)电子科技有限公司 | Monolayer conductive film capacitive touch screen |
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| Publication number | Publication date |
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| CN102033671A (en) | 2011-04-27 |
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Granted publication date: 20170531 Termination date: 20181013 |