CN103345344A - Method for manufacturing thin-film capacitive touch screen - Google Patents
Method for manufacturing thin-film capacitive touch screen Download PDFInfo
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- CN103345344A CN103345344A CN2013102960218A CN201310296021A CN103345344A CN 103345344 A CN103345344 A CN 103345344A CN 2013102960218 A CN2013102960218 A CN 2013102960218A CN 201310296021 A CN201310296021 A CN 201310296021A CN 103345344 A CN103345344 A CN 103345344A
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Abstract
The invention relates to a method for manufacturing a thin-film capacitive touch screen. The method comprises the steps of bonding a bonding layer on the surface of a clean substrate, bonding a transparent conducting thin film to be manufactured on the other face of the bonding layer, and carrying out follow-up treatment on the transparent conducting thin film. The transparent conducting thin film is bonded on the bonding layer, the bonding layer and the substrate are bonded, and therefore the back face of the transparent conducting thin film can be effectively protected from influences by scratching in the manufacturing process of the transparent conducting thin film. By means of the method, the step of drilling a hole in the transparent conducting thin film is eliminated, therefore, exposure in a monolithic hanging hole mode is removed, direct operations on a production line can be achieved, and the yield of products is improved.
Description
Technical field
The present invention relates to touch-screen and make the field, especially relate to a kind of method for making of thin-film capacitor formula touch-screen.
Background technology
Touch-screen claims " touch screen ", " contact panel " etc. again, it is a kind of induction type liquid crystal indicator that receives input signals such as contact, when the graphic button on user's contact screen, haptic feedback system on the screen can be according to the various coupling arrangements of driven by program of programming in advance, can be in order to the push button panel of dessert machine tool formula, and produce lively visual and sound effects by display panels.Touch-screen is as a kind of up-to-date computer input equipment, and it is by simple, convenient, the most natural a kind of interpersonal interactive mode.Traditional film touch screen method for making mainly is that two minor faces at transparent conductive film punch respectively, the aperture is generally about 3mm, after having pasted dry film and exposure, transparent conductive film is hung on the framework of stitch, make needed pattern after making through development, etching, stripping etc. then.But because the back side of transparent conductive film does not have carrier, after being suspended on the framework, in processes such as development, etching, stripping, cause back side scratch easily, spray at soup and water, during flushing owing to exist pressure can cause the mode of situation such as film folding wound, thereby the yield of product is influenced.
Summary of the invention
Based on this, be necessary to provide a kind of method for making that can effectively improve the thin-film capacitor formula touch-screen of product yield.
A kind of method for making of thin-film capacitor formula touch-screen comprises the steps:
Paste tack coat at the substrate surface of cleaning, described tack coat is two-sided all to have tackiness and the stronger one side of tackiness is fitted fully with described substrate;
Transparent conductive film to be processed is sticked on the another side of described tack coat, and described transparent conductive film and described tack coat are fitted fully;
Described transparent conductive film handled make default pattern;
The described transparent conductive film of making predetermined pattern torn off from described tie layer surface carry out subsequent handling and handle.
Among embodiment, the material of described substrate is glass therein.
Therein among embodiment, the silica gel that described tack coat comprises the PET substrate and is coated in described PET substrate both sides respectively, the centrifugal agent content in the silica gel of the one side that described tackiness is stronger are lower than the centrifugal agent content in the silica gel of the more weak one side of tackiness.
Among embodiment, the material of described transparent conductive film is metal-doped n type semiconductor oxide therein.
Among embodiment, the material of described transparent conductive film is ITO therein.
Therein among embodiment, described transparent conductive film handled make default pattern and comprise the step of described transparent conductive film being cleaned, being coated with photoresist, exposure, development, etching and stripping successively.
Therein among embodiment, described subsequent handling handle the described transparent conductive film that comprises predetermined pattern be fitted in the touch screen base plate surface and punch, the step of flexible PCB bindings.
By transparent conductive film is sticked on the tack coat; and tack coat and substrate sticking; thereby in process, can effectively protect the back side of transparent conductive film not influenced by scratch at transparent conductive film; and adopt said method can save the step of punching at transparent conductive film; thereby not in order to form exposure, development, etching, the stripping of monolithic hanging hole; can directly walk streamline, the yield of product is improved.
Description of drawings
Fig. 1 is the process flow diagram of method for making of the thin-film capacitor formula touch-screen of an embodiment.
Embodiment
Below main by reference to the accompanying drawings the method for making of thin-film capacitor formula touch-screen is described in further detail.
As shown in Figure 1, the method for making of the thin-film capacitor formula touch-screen of an embodiment comprises the steps:
Step S110 pastes tack coat at the substrate surface of cleaning, and tack coat is two-sided all to have tackiness and the stronger one side of tackiness is fitted fully with substrate.
Substrate is that rigid material is made, can bending after high temperature (140 ℃) baking or flexibility less than 0.1mm.Specifically in the present embodiment, substrate is glass substrate, is appreciated that in other embodiments, the material of substrate can also be for other hard plastic materials etc., as ethylene glycol terephthalate, polybutylene terephthalate, polymethylmethacrylate or polycarbonate plastic.
The silica gel that tack coat comprises the PET substrate and is coated in described PET substrate both sides respectively.Centrifugal agent content in the silica gel of the one side that tackiness is stronger is lower than the centrifugal agent content in the silica gel of the more weak one side of tackiness.Adopt tack coat high temperature resistant (120～140 ℃) and the acid and alkali-resistance of PET substrate.
In the present embodiment, when tack coat is sticked on substrate surface, the selection one side that glueability is stronger is fitted fully with substrate, the centre does not interspace and bubble, and foreign matter and fold can not be arranged, and through between high temperature (120～140 ℃) baking back tack coat and the substrate bubble being arranged.
Step S120, transparent conductive film to be processed is sticked on the another side of tack coat, and transparent conductive film and tack coat are fitted fully, the centre does not interspace and bubble, and foreign matter and fold can not be arranged, and through between high temperature (120～140 ℃) baking back tack coat and the substrate bubble being arranged.
In the present embodiment, transparent conductive film is the ITO(tin indium oxide) film, be appreciated that, in other embodiments, be appreciated that in other embodiments the material of transparent conductive film also is not limited to ITO, as being other conductor oxidate materials, especially transparent and better conductivity aluminum zinc oxide (AZO), gallium oxide zinc (GZO) or indium zinc oxide metal-doped n type semiconductor oxide such as (IZO).
It is bonding fully that transparent conductive film and tack coat have the one side of more weak tackiness, the centre does not interspace or bubble, after transparent conductive film is carried out subsequent treatment, can comparatively be easy to transparent conductive film is torn off from tie layer surface, and tack coat can still be retained in substrate surface.
Step S130 handles transparent conductive film and to make default pattern.
Specifically transparent conductive film is handled and made default pattern and comprise the step of transparent conductive film being cleaned, being coated with photoresist, exposure, development, etching and stripping (namely remove etching after unnecessary transparent conductive film) successively.
Step S140 tears off the described transparent conductive film of making predetermined pattern and to carry out subsequent handling and handle from described tie layer surface.
Described subsequent handling handle the transparent conductive film that comprises predetermined pattern be fitted in the touch screen base plate surface and punch, the step of operation such as flexible PCB binding.
In the present embodiment, tack coat adopts the silica gel material, contains an amount of centrifugal dose, after transparent conductive film is torn off from tie layer surface, do not have the surface that foreign matter remains in transparent conductive film, and tack coat can secondary recycling, can effectively reduce production cost of products.
By transparent conductive film is sticked on the tack coat; and tack coat and substrate sticking; thereby in process, can effectively protect the back side of transparent conductive film not influenced by scratch at transparent conductive film; and adopt said method can save the step of punching at transparent conductive film; thereby do not expose in order to the form of monolithic hanging hole; can directly walk streamline, the yield of product is improved.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. the method for making of a thin-film capacitor formula touch-screen is characterized in that, comprises the steps:
Paste tack coat at the substrate surface of cleaning, described tack coat is two-sided all to have tackiness and the stronger one side of tackiness is fitted fully with described substrate;
Transparent conductive film to be processed is sticked on the another side of described tack coat, and described transparent conductive film and described tack coat are fitted fully;
Described transparent conductive film handled make default pattern;
The described transparent conductive film of making predetermined pattern torn off from described tie layer surface carry out subsequent handling and handle.
2. the method for making of thin-film capacitor formula touch-screen as claimed in claim 1 is characterized in that, the material of described substrate is glass.
3. the method for making of thin-film capacitor formula touch-screen as claimed in claim 1, it is characterized in that, the silica gel that described tack coat comprises the PET substrate and is coated in described PET substrate both sides respectively, the centrifugal agent content in the silica gel of the one side that described tackiness is stronger are lower than the centrifugal agent content in the silica gel of the more weak one side of tackiness.
4. the method for making of thin-film capacitor formula touch-screen as claimed in claim 1 is characterized in that, the material of described transparent conductive film is metal-doped n type semiconductor oxide.
5. as the method for making of claim 1 or 4 described thin-film capacitor formula touch-screens, it is characterized in that the material of described transparent conductive film is ITO.
6. the method for making of thin-film capacitor formula touch-screen as claimed in claim 1, it is characterized in that, described transparent conductive film is handled made default pattern and comprise the step of described transparent conductive film being cleaned, being coated with photoresist, exposure, development, etching and stripping successively.
7. the method for making of thin-film capacitor formula touch-screen as claimed in claim 1, it is characterized in that, described subsequent handling handle the described transparent conductive film that comprises predetermined pattern be fitted in the touch screen base plate surface and punch, the step of flexible PCB bindings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102960218A CN103345344A (en) | 2013-07-15 | 2013-07-15 | Method for manufacturing thin-film capacitive touch screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102960218A CN103345344A (en) | 2013-07-15 | 2013-07-15 | Method for manufacturing thin-film capacitive touch screen |
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| CN103345344A true CN103345344A (en) | 2013-10-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199571A (en) * | 2014-08-14 | 2014-12-10 | 深圳市豪威薄膜技术有限公司 | Manufacturing method of flexible film function piece |
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| CN101719034A (en) * | 2009-12-04 | 2010-06-02 | 牧东光电（苏州）有限公司 | Improved sticking touch control panel body and manufacture method thereof |
| CN102033671A (en) * | 2010-10-13 | 2011-04-27 | 深圳欧菲光科技股份有限公司 | Method for manufacturing ultrathin Film capacitive touch screen |
| CN102520823A (en) * | 2011-12-20 | 2012-06-27 | Tcl显示科技（惠州）有限公司 | Method for processing touch screen of mobile phone |
| US20130158221A1 (en) * | 2011-12-20 | 2013-06-20 | Nitto Denko Corporation | Optical pressure-sensitive adhesive sheet |
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2013
- 2013-07-15 CN CN2013102960218A patent/CN103345344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719034A (en) * | 2009-12-04 | 2010-06-02 | 牧东光电（苏州）有限公司 | Improved sticking touch control panel body and manufacture method thereof |
| CN102033671A (en) * | 2010-10-13 | 2011-04-27 | 深圳欧菲光科技股份有限公司 | Method for manufacturing ultrathin Film capacitive touch screen |
| CN102520823A (en) * | 2011-12-20 | 2012-06-27 | Tcl显示科技（惠州）有限公司 | Method for processing touch screen of mobile phone |
| US20130158221A1 (en) * | 2011-12-20 | 2013-06-20 | Nitto Denko Corporation | Optical pressure-sensitive adhesive sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199571A (en) * | 2014-08-14 | 2014-12-10 | 深圳市豪威薄膜技术有限公司 | Manufacturing method of flexible film function piece |
| 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 |
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Application publication date: 20131009 |
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