CN102693040A - High wear-resistant anti-dizzy touch screen and making method - Google Patents

High wear-resistant anti-dizzy touch screen and making method Download PDF

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Publication number
CN102693040A
CN102693040A CN2012101706164A CN201210170616A CN102693040A CN 102693040 A CN102693040 A CN 102693040A CN 2012101706164 A CN2012101706164 A CN 2012101706164A CN 201210170616 A CN201210170616 A CN 201210170616A CN 102693040 A CN102693040 A CN 102693040A
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coating
oxide skin
touch screen
minutes
gel solution
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CN2012101706164A
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CN102693040B (en
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陈志强
徐国书
郑开东
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TPK Touch Solutions Xiamen Inc
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Optera Technology Xiamen Co Ltd
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Abstract

The invention discloses a high wear-resistant anti-dizzy touch screen, which includes a base plate and at least two oxide layers, wherein the oxide layers are sequentially formed on one side of the base plate. The first oxide layer is formed in the following ways: sol-gel solution with pH value of 0.55 to 2.7 and solid content of 3% to 8% is uniformly sprayed on the base plate, and the film layer with the thickness of 20 to 60 microns is formed by spraying and sintering at the high temperature of 200 to 600 degrees for 15 to 30 minutes; and the second oxide layer is formed on the first oxide layer in the same way as the first oxide layer, and the thickness of the film layer formed by spraying is 40 to 60 microns. The invention also discloses a making method of the touch screen. The high wear-resistant anti-dizzy touch screen can enhance the anti-dizzy effect, improves the wear-resistance, is suitable for batch production, and has low production cost.

Description

A kind of high abrasion combating vertigo touch screen and preparation method thereof
Technical field
The present invention relates to a kind of touch screen and preparation method thereof, refer in particular to a kind of high abrasion combating vertigo touch screen and preparation method thereof.
Background technology
Touch screen is widely used in the various electronic products, and the user can touch the variation that screen produces electric signal through finger or professional style of writing, through the conversion of controller to signal, realizes the input operation to equipment again.Because of the relation of its method of application, the anti-wear-resisting scratch performance on the top layer that directly contacts with the user there is higher requirement.
For improving the wearing quality of touch screen, in the prior art, normally used method is a kind of to be to improve the wear-resisting effect at touch screen interface at the outside applying oxidn film of screen.But filming equipment costs an arm and a leg usually, and production efficiency is low, so this method cost is high.
Another kind method is to form oxide and form wear-resisting combating vertigo layer at the outside spraying of screen individual layer flocculated colloid sintering.This method equipment simply is convenient to operation and is fit to a large amount of production, but thin if the wear-resisting combating vertigo layer of individual layer was sprayed, then wear-resisting effect does not reach; If the wear-resisting combating vertigo layer spraying of individual layer is blocked up, then the rete peeling phenomenon will appear in the wear-resisting combating vertigo layer behind the sintering.
Simultaneously, the most field of employment of touch screen is outdoor, and is high to the combating vertigo effect requirements of product, yet, above-mentioned two kinds of wearing layers that method produced in the prior art, its combating vertigo poor effect.
Seeing that the wear-resisting combating vertigo layer of prior art exists anti-wear performance undesirable, and the problem of combating vertigo poor effect, the inventor develops a kind of high abrasion combating vertigo touch screen that overcomes above-mentioned defective and preparation method thereof, and this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind ofly can increase the combating vertigo effect, improves anti-wear performance, is fit to produce in batches and high abrasion combating vertigo touch screen that production cost is low and preparation method thereof.
For reaching above-mentioned purpose, solution of the present invention is:
A kind of high abrasion combating vertigo touch screen comprises substrate and two-layer at least oxide skin(coating), and oxide skin(coating) is formed at a side of substrate successively; First oxide skin(coating) is to form in the following manner: with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8% (percentage by weight) evenly is sprayed on the substrate; The thicknesses of layers that spraying forms is 20 μ m-60 μ m; Form through 200 ℃-600 ℃ high temperature sinterings, sintering time is 15 minutes-30 minutes; Second oxide skin(coating) is formed on first oxide skin(coating), and the mode of formation is identical with the first oxide skin(coating) generation type, and the thicknesses of layers that spraying forms is 40 μ m-100 μ m.
Further, also comprise the trioxide layer, the trioxide layer is formed on second oxide skin(coating), and the mode of formation is identical with the second oxide skin(coating) generation type, and the thicknesses of layers that spraying forms is 50 μ m-150 μ m.
Further, also comprise coatings, coatings is formed between substrate and the ground floor oxide skin(coating).
Further, substrate is glass or plastic sheeting.
A kind of high abrasion combating vertigo touch screen method for making may further comprise the steps:
Step 1, with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8% (percentage by weight) evenly is sprayed on the substrate; The thicknesses of layers that spraying forms is 20 μ m-60 μ m; High temperature sintering through 200 ℃-600 ℃ forms first oxide skin(coating); Sintering time is 15 minutes-30 minutes; Wherein, sol gel solution comprises tetraethyl orthosilicate 5%-15% (percentage by weight), ethyl acetate 5%-20% (percentage by weight), methyl alcohol 3%-4% (percentage by weight), ethanol 15%-25% (percentage by weight), amylalcohol 10%-30% (percentage by weight), pentane 1%-5% (percentage by weight), acetone 1%-5% (percentage by weight), phosphoric acid 2%-3% (percentage by weight), acetic anhydride 1%-3% (percentage by weight), pure water 5%-25% (percentage by weight);
Step 2, be 0.55-2.7 with the pH value; The sol gel solution that contains solid 3%-8%wt evenly is sprayed on first oxide skin(coating) of step 1 formation; The thicknesses of layers that spraying forms is 40 μ m-100 μ m; High temperature sintering through 200 ℃-600 ℃ forms second oxide skin(coating), and sintering time is 15 minutes-30 minutes; Sol gel solution is identical with step 1.
Further, on the basis of above-mentioned steps two, further comprising the steps of:
Step 3, with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8 % evenly is sprayed on second oxide skin(coating) that step 2 forms; The thicknesses of layers that spraying forms is 50 μ m-150 μ m; High temperature sintering through 200 ℃-600 ℃ forms the trioxide layer, and sintering time is 15 minutes-30 minutes; Sol gel solution is identical with above-mentioned steps one.
After adopting such scheme, through the high abrasion combating vertigo touch screen that method for making of the present invention is made, form two-layer oxide skin(coating) on the substrate after; Its haze value is 7%-18%, and penetrance ﹥ 83%, and its mist degree is after wear-resisting 4500 circulations; Haze change ﹥ 1%, and wearing quality is good, and combating vertigo is effective.
Secondly, form three layers of oxide skin(coating) on the substrate after, haze value 7%-18%, penetrance＞83%, its mist degree are after wear-resisting 7500 circulations, haze change＞1% further improves wearing quality and combating vertigo effect.
Description of drawings
Fig. 1 is a making process flow diagram of the present invention;
Fig. 2 is a structural drawing of the present invention;
Fig. 3 is the making process flow diagram of another embodiment of the present invention;
Fig. 4 is the structural representation of another embodiment of the present invention;
Fig. 5 is the wear-resisting test curve figure of the present invention.
Label declaration
Substrate 1 first oxide skin(coating) 2
Second oxide skin(coating), 3 trioxide layers 4
Coatings 5.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done detailed explanation.
Consult Fig. 1 to shown in Figure 4, a kind of high abrasion combating vertigo touch screen comprises substrate 1 and two-layer at least oxide skin(coating), and oxide skin(coating) is formed at a side of substrate 1 successively.
First oxide skin(coating) 2 is to form in the following manner: with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8% evenly is sprayed on the substrate 1; The thicknesses of layers that spraying forms is 20 μ m-60 μ m; Form through 200 ℃-600 ℃ high temperature sinterings, sintering time is 15 minutes-30 minutes; Second oxide skin(coating) 3 is formed on first oxide skin(coating) 2, and the mode of formation is identical with first oxide skin(coating), 2 generation types, and the thicknesses of layers that spraying forms is 40 μ m-100 μ m.
For further improving wearing quality of the present invention and combating vertigo effect thereof; The present invention also can comprise trioxide layer 4; Trioxide layer 4 is formed on second oxide skin(coating) 3, and the mode of formation is identical with second oxide skin(coating), 3 generation types, and the thicknesses of layers that spraying forms is 50 μ m-150 μ m.
Through the oxide skin(coating) that high temperature sintering forms, its hardness >=6Mohs (Mohs), and thickness＞0.1um, adhesion is through the international test stone of the ASTM D3359 of 4B.
The present invention can be provided with coatings 5 between substrate 1 and ground floor oxide skin(coating) 2, substrate 1 can or be a plastic sheeting for glass, but is not limited thereto.
Coatings 5 is in the layer of conductive film that is arranged on substrate 1 surface, can prevent wounded substrate 1 in the high abrasion combating vertigo touch screen manufacturing process, thereby can prevent to cause the function variation of substrate 1 even exceed specification.
Oxide skin(coating) is formed at a side of substrate 1 successively, and this structure is applicable to various sound wave type touch-screens and resistive touch screen.
Can between substrate 1 and ground floor oxide skin(coating) 2, coatings 5 be set, this structure is applicable to surface capacitance type touch screen.Coatings 5 is conducting films of capacitive touch screen, and the technology that this mode of employing is made the dizzy touch of high abrasion can not be damaged to this rete, thereby can not influence touch function.
The present invention also discloses a kind of high abrasion combating vertigo touch screen method for making, may further comprise the steps:
Embodiment one
Step 1, with the pH value be 0.55, the sol gel solution that contains solid 3% evenly is sprayed on the substrate 1; The thicknesses of layers that spraying forms is 20 μ m; High temperature sintering through 200 ℃ forms first oxide skin(coating) 2; Sintering time is 15 minutes, and wherein, sol gel solution comprises tetraethyl orthosilicate 5%, ethyl acetate 5%, methyl alcohol 3%, ethanol 15%, amylalcohol 10%, pentane 2%, acetone 1%, phosphoric acid 2%, acetic anhydride 1%, pure water 5%.
After forming first oxide skin(coating) 2, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 1000 circulations, haze change＞1%.
Step 2, be 0.55 with the pH value; The sol gel solution that contains solid 3% evenly is sprayed on first oxide skin(coating) 2 of step 1 formation; The thicknesses of layers that spraying forms is 40 μ m, forms second oxide skin(coating) 3 through 200 ℃ high temperature sinterings, and sintering time is 15 minutes; Sol gel solution is identical with step 1.
After forming second oxide skin(coating), haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 4500 circulations, haze change＞1%.
As shown in Figure 5, the wearing quality of two-layer oxide skin(coating) is better than the wearing quality of one deck oxide skin(coating), and the combating vertigo better effects if.
Wherein, wherein the colloidal sol aggregation is following:
Si-OR+HOH → Si-OH+ ROH, Si-OR+HO-Si → Si-O-Si+ ROH, (R can be Si-OH+ HO-Si → Si-O-Si+ HOH: ethyl ester).
Embodiment two
On the basis of embodiment one step 2, further comprising the steps of:
Step 3, be 0.55 with the pH value; The sol gel solution that contains solid 3% evenly is sprayed on second oxide skin(coating) 3 of embodiment one step 2 formation; The thicknesses of layers that spraying forms is 50 μ m, forms trioxide layer 4 through 200 ℃ high temperature sinterings, and sintering time is 15 minutes; Sol gel solution is identical with embodiment one step 1.
After forming trioxide layer 4, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 7500 circulations, haze change＞1%.
Can know that from above-mentioned contrast the wearing quality of three layers of oxide skin(coating) is better than the wearing quality of two layers of oxide skin(coating), and the combating vertigo better effects if.
Embodiment three
Step 1, with the pH value be 2.7, the sol gel solution that contains solid 8% evenly is sprayed on the substrate 1; The thicknesses of layers that spraying forms is 60 μ m; High temperature sintering through 600 ℃ forms first oxide skin(coating) 2; Sintering time is 30 minutes, and wherein, sol gel solution comprises tetraethyl orthosilicate 10%, ethyl acetate 15%, methyl alcohol 4%, ethanol 25%, amylalcohol 20%, pentane 4%, acetone 4%, phosphoric acid 2%, acetic anhydride 2%, pure water 20%.
After forming first oxide skin(coating) 2, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 1000 circulations, haze change＞1%.
Step 2, be 2.7 with the pH value; The sol gel solution that contains solid 8% evenly is sprayed on first oxide skin(coating) 2 of step 1 formation; The thicknesses of layers that spraying forms is 100 μ m, forms second oxide skin(coating) 3 through 600 ℃ high temperature sinterings, and sintering time is 30 minutes; Sol gel solution is identical with step 1.
After forming second oxide skin(coating) 3, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 4500 circulations, haze change＞1%.
Embodiment four
On the basis of embodiment three step 2, further comprising the steps of:
Step 3, be 2.7 with the pH value; The sol gel solution that contains solid 8% evenly is sprayed on second oxide skin(coating) 3 of embodiment three step 2 formation; The thicknesses of layers that spraying forms is 150 μ m, forms trioxide layer 4 through 600 ℃ high temperature sinterings, and sintering time is 30 minutes; Sol gel solution is identical with embodiment three step 1.
After forming the trioxide layer, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 7500 circulations, haze change＞1%.
Embodiment five
Step 1, with the pH value be 0.55, the sol gel solution that contains solid 3% evenly is sprayed on the substrate 1; The thicknesses of layers that spraying forms is 20 μ m; High temperature sintering through 200 ℃ forms first oxide skin(coating) 2; Sintering time is 15 minutes, and wherein, sol gel solution comprises tetraethyl orthosilicate 5%, ethyl acetate 5%, methyl alcohol 3%, ethanol 15%, amylalcohol 10%, pentane 1%, acetone 1%, phosphoric acid 2%, acetic anhydride 1%, pure water 5%.
After forming first oxide skin(coating) 2, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 1000 circulations, haze change＞1%.
Step 2, be 0.55 with the pH value; The sol gel solution that contains solid 3% evenly is sprayed on first oxide skin(coating) 2 of step 1 formation; The thicknesses of layers that spraying forms is 40 μ m, forms second oxide skin(coating) 3 through 200 ℃ high temperature sinterings, and sintering time is 15 minutes; Sol gel solution is identical with step 1.
After forming second oxide skin(coating), haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 4500 circulations, haze change＞1%.
As shown in Figure 5, the wearing quality of two-layer oxide skin(coating) is better than the wearing quality of one deck oxide skin(coating), and the combating vertigo better effects if.
Embodiment six
On the basis of embodiment five step 2, further comprising the steps of:
Step 3, be 0.55 with the pH value; The sol gel solution that contains solid 3% evenly is sprayed on second oxide skin(coating) 3 of embodiment five step 2 formation; The thicknesses of layers that spraying forms is 50 μ m, forms trioxide layer 4 through 200 ℃ high temperature sinterings, and sintering time is 15 minutes; Sol gel solution is identical with embodiment five step 1.
After forming trioxide layer 4, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 7500 circulations, haze change＞1%.
Can know that from above-mentioned contrast the wearing quality of three layers of oxide skin(coating) is better than the wearing quality of two layers of oxide skin(coating), and the combating vertigo better effects if.
Embodiment seven
Step 1, with the pH value be 2.7, the sol gel solution that contains solid 8% evenly is sprayed on the substrate 1; The thicknesses of layers that spraying forms is 60 μ m; High temperature sintering through 600 ℃ forms first oxide skin(coating) 2; Sintering time is 30 minutes, and wherein, sol gel solution comprises tetraethyl orthosilicate 15%, ethyl acetate 20%, methyl alcohol 4%, ethanol 25%, amylalcohol 30%, pentane 5%, acetone 5%, phosphoric acid 3%, acetic anhydride 3%, pure water 25%.
After forming first oxide skin(coating) 2, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 1000 circulations, haze change＞1%.
Step 2, be 2.7 with the pH value; The sol gel solution that contains solid 8% evenly is sprayed on first oxide skin(coating) 2 of step 1 formation; The thicknesses of layers that spraying forms is 100 μ m, forms second oxide skin(coating) 3 through 600 ℃ high temperature sinterings, and sintering time is 30 minutes; Sol gel solution is identical with step 1.
After forming second oxide skin(coating) 3, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 4500 circulations, haze change＞1%.
Embodiment eight
On the basis of embodiment seven step 2, further comprising the steps of:
Step 3, be 2.7 with the pH value; The sol gel solution that contains solid 8% evenly is sprayed on second oxide skin(coating) 3 of embodiment seven step 2 formation; The thicknesses of layers that spraying forms is 150 μ m, forms trioxide layer 4 through 600 ℃ high temperature sinterings, and sintering time is 30 minutes; Sol gel solution is identical with embodiment seven step 1.
After forming the trioxide layer, haze value 7%-18%, penetrance＞83%, its mist degree after wear-resisting 7500 circulations, haze change＞1%.
In sum, spraying multilayer wearing layer provided by the present invention can obviously improve the wearing quality of Touch Screen, and can not reduce the penetrance of product.The present invention sprays two-layer wearing layer at least, select two-layer or three layers in addition more the multilayer wearing layer select by the required antiwear characteristic of product.

Claims (6)

1. high abrasion combating vertigo touch screen is characterized in that: comprise substrate and two-layer at least oxide skin(coating), oxide skin(coating) is formed at a side of substrate successively; First oxide skin(coating) is to form in the following manner: with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8% evenly is sprayed on the substrate; The thicknesses of layers that spraying forms is 20 μ m-60 μ m; Form through 200 ℃-600 ℃ high temperature sinterings, sintering time is 15 minutes-30 minutes; Second oxide skin(coating) is formed on first oxide skin(coating), and the mode of formation is identical with the first oxide skin(coating) generation type, and the thicknesses of layers that spraying forms is 40 μ m-100 μ m.
2. a kind of high abrasion combating vertigo touch screen as claimed in claim 1; It is characterized in that: also comprise the trioxide layer; The trioxide layer is formed on second oxide skin(coating), and the mode of formation is identical with the second oxide skin(coating) generation type, and the thicknesses of layers that spraying forms is 50 μ m-150 μ m.
3. a kind of high abrasion combating vertigo touch screen as claimed in claim 1 is characterized in that: comprise that also coatings, coatings are formed between substrate and the ground floor oxide skin(coating).
4. a kind of high abrasion combating vertigo touch screen as claimed in claim 1, it is characterized in that: substrate is glass or plastic sheeting.
5. high abrasion combating vertigo touch screen method for making is characterized in that: may further comprise the steps:
Step 1, with the pH value be 0.55-2.7, the sol gel solution that contains solid 3%-8% evenly is sprayed on the substrate; The thicknesses of layers that spraying forms is 20 μ m-60 μ m; High temperature sintering through 200 ℃-600 ℃ forms first oxide skin(coating); Sintering time is 15 minutes-30 minutes; Wherein, sol gel solution comprises tetraethyl orthosilicate 5%-15%, ethyl acetate 5%-20%, methyl alcohol 3%-4%, ethanol 15%-25%, amylalcohol 10%-30%, pentane 1%-5%, acetone 1%-5%, phosphoric acid 2%-3%, acetic anhydride 1%-3%, pure water 5%-25%;
Step 2, be 0.55-2.7 with the pH value; The sol gel solution that contains solid 3%-8% evenly is sprayed on first oxide skin(coating) of step 1 formation; The thicknesses of layers that spraying forms is 40 μ m-100 μ m; High temperature sintering through 200 ℃-600 ℃ forms second oxide skin(coating), and sintering time is 15 minutes-30 minutes; Sol gel solution is identical with step 1.
6. a kind of high abrasion combating vertigo touch screen method for making as claimed in claim 5; It is characterized in that: further comprising the steps of: the pH value evenly is sprayed on second oxide skin(coating) that said step 2 forms for 0.55-2.7, the sol gel solution that contains solid 3%-8%; The thicknesses of layers that spraying forms is 50 μ m-150 μ m; High temperature sintering through 200 ℃-600 ℃ forms the trioxide layer, and sintering time is 15 minutes-30 minutes; Sol gel solution is identical with said step 1.
CN201210170616.4A 2012-05-29 2012-05-29 A kind of high abrasion vertigo touch screen and preparation method thereof Expired - Fee Related CN102693040B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1255889A (en) * 1997-04-10 2000-06-07 康宁股份有限公司 Optical article with anti-reflecting coating, corresponding coating material and coating method
CN1316980A (en) * 1998-09-06 2001-10-10 新材料公共服务公司研究所 Method for production of optical layers having uniform layer thickness
US6855396B1 (en) * 1999-10-28 2005-02-15 Institut Fuer Neue Materialien Gemeinnuetzige Gmbh Substrate comprising an abrasion-resistant diffusion barrier layer system
CN101052516A (en) * 2004-09-07 2007-10-10 帝人株式会社 Transparent conductive laminate and transparent touch panel
CN201645920U (en) * 2010-03-10 2010-11-24 立方工业股份有限公司 Substrate surface hardening structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1255889A (en) * 1997-04-10 2000-06-07 康宁股份有限公司 Optical article with anti-reflecting coating, corresponding coating material and coating method
CN1316980A (en) * 1998-09-06 2001-10-10 新材料公共服务公司研究所 Method for production of optical layers having uniform layer thickness
US6855396B1 (en) * 1999-10-28 2005-02-15 Institut Fuer Neue Materialien Gemeinnuetzige Gmbh Substrate comprising an abrasion-resistant diffusion barrier layer system
CN101052516A (en) * 2004-09-07 2007-10-10 帝人株式会社 Transparent conductive laminate and transparent touch panel
CN201645920U (en) * 2010-03-10 2010-11-24 立方工业股份有限公司 Substrate surface hardening structure

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