CN103974919A - Cover glass for electronic instrument, method for manufacturing same, and method for manufacturing touch sensor module - Google Patents
Cover glass for electronic instrument, method for manufacturing same, and method for manufacturing touch sensor module Download PDFInfo
- Publication number
- CN103974919A CN103974919A CN201280060645.3A CN201280060645A CN103974919A CN 103974919 A CN103974919 A CN 103974919A CN 201280060645 A CN201280060645 A CN 201280060645A CN 103974919 A CN103974919 A CN 103974919A
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- China
- Prior art keywords
- antifouling coating
- glass
- glass substrate
- major surfaces
- cover
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
- C03C23/006—Other surface treatment of glass not in the form of fibres or filaments by irradiation by plasma or corona discharge
Abstract
The present invention provides a glass cover for an electronic instrument with remarkably improved durability over stainproof coated surfaces formed by conventional dip methods. The present invention is a cover glass (10) for an electronic instrument and is provided with a glass substrate (1) having a pair of main surfaces and end surfaces adjacent to the pair of main surfaces, and on a first main surface (1A) of the pair of main surfaces, a treated glass surface on which a glass surface modification treatment, where a planar plasma treatment and downstream plasma treatment are carried out in that order, has been implemented is formed. A stainproof coating (3) is formed on the treated glass surface and an end surface (1C).
Description
Technical field
The present invention relates to as mobile telephone, portable game machine, PDA (Personal DigitalAssistant: personal digital assistant), digital camera, pick up camera, or the protection of the display frame of the portable equipments such as dull and stereotyped PC (PersonalComputer: Personal Computer), or the stacked guard block that is arranged at display frame is used as further guard block and the electronics that uses cover-plate glass and manufacture method thereof, and the manufacture method of touch sensor module.
Background technology
In the past, in order to protect the display frame of the portable equipments such as mobile telephone, the general good and light-duty acrylic resin board of the transparency that uses.In recent years, the portable equipment of touch panel mode accounted for main flow, for the function correspondence of this touch panel, required to improve the intensity of display frame, and substituting gradually acrylic materials in the past and mostly using is the thin high-intensity glass material that has.And, compared with acrylic materials in the past, glass material in physical strength (scratch resistance, shock-resistance), surface smoothness, protectiveness (weathering resistance, didirtresistance), attractive in appearance, high-grade etc. also preponderate aspect some.
The cover-plate glass being made up of such glass material is to manufacture by following operation substantially.
By mechanical workout (cutting) or etching and processing etc., the glass material panelization that is configured as sheet is become to the size of regulation, make cover-plate glass glass substrate.
Next, by mechanical workout or etching and processing, this glass substrate is carried out to necessary Drilling operation, peripheral shape processing etc.
Next, the glass substrate of the shape processing that is through with is carried out to chemical enhanced processing.This chemical enhanced processing is to make sodium Na+ in glass and the large potassium K+ exchange of ionic radius, forms the facture of compressive stress layers at glass surface.For cover-plate glass, owing to being applied in impact, pressing, so need high strength.
Next, desirable printing etc. is implemented in the surface of the glass substrate that has carried out above chemical enhanced processing.
Ready-made like this cover-plate glass is assembled into portable equipment.In the time that user uses the portable equipment of touch panel mode, operate owing to utilizing finger directly to touch its display frame, so easily adhere to the dirts such as fingerprint on the cover-plate glass of protection display frame.Therefore, expect to prevent or be suppressed on cover-plate glass, to adhere to the dirts such as fingerprint, even if or adhere to the also easily wiping of the dirts such as fingerprint.Therefore, conventionally antifouling coating processing is implemented in the surface of cover-plate glass.Such antifouling coating processing is for example disclosed in patent documentation 1.
Patent documentation 1: Japanese Unexamined Patent Application Publication 2011-510904 communique
The content of carrying out antifouling coating processing by vapour deposition method or pickling process is disclosed in above-mentioned patent documentation 1.But, when carried out antifouling coating processing by vapour deposition method or pickling process, the close property that has glass substrate and an antifouling coating material is insufficient because of surface texture of the concave-convex surface of glass substrate etc., can not obtain the situation of the desirable weather resistance of antifouling coating.
In addition,, as shown in above-mentioned patent documentation 1, antifouling coating is processed the general vapour deposition method that uses.But, in antifouling coating is processed use vapour deposition method in the situation that, because needs are processed one by one film forming chamber is indoor, so produce rate variance, the problem that result exists manufacturing cost also to increase.
In addition, the antifouling coating processing based on dip method (pickling process) is also disclosed in above-mentioned patent documentation 1.But although open in patent documentation 1, according to the inventor's research, compared with the antifouling coating face forming by vapour deposition method, there is the problem of poor durability in the clear and definite antifouling coating face forming by dip method.
Summary of the invention
The present invention completes in order to solve such existing issue, and its object is, provides compared with a kind of antifouling coating face based on dip method with in the past, can significantly improve electronics cover-plate glass and the manufacture method thereof of weather resistance.In addition, another object is, electronics cover-plate glass and the manufacture method thereof that can make productivity improve are provided compared with a kind of antifouling coating processing with based on vapour deposition method.And other objects are, provide a kind of manufacture method that the weather resistance of antifouling coating face is improved and make the touch sensor module of adhering to stability-enhanced glass substrate of transparency conducting layer etc. that possesses.
The inventor has carried out wholwe-hearted research in order to solve above-mentioned problem, about the weather resistance of antifouling coating face, and clear and definite following content.About the surface texture of glass substrate of implementing antifouling coating processing, measure of skewness (Rsk: the degree of bias) at the profilograph of glass baseplate surface departs from 0, departing from of the concavo-convex shape of glass baseplate surface is large, the antifouling coating that is coated on glass substrate with respect to glass substrate to adhere to stability low.And this adheres to the weather resistance of stability influence antifouling coating face.
Given this, the result that the inventor further studies repeatedly, confirm by glass substrate is implemented to planar fashion Cement Composite Treated by Plasma, the measure of skewness (Rsk: the degree of bias) of the profilograph of glass baseplate surface approaches 0, glass baseplate surface is improved, and the departing from of concavo-convex shape of glass baseplate surface diminishes.Its result, has confirmed that antifouling coating uprises with respect to the stability of adhering to of glass substrate.
But, if only also confirmed by planar fashion Cement Composite Treated by Plasma, antifouling coating with respect to glass substrate to adhere to stability insufficient.So the result that the inventor further studies repeatedly, by the Cement Composite Treated by Plasma of the surface enforcement concurrent to the glass substrate of having implemented planar fashion Cement Composite Treated by Plasma, forms the functional groups such as OH base, COOH base on the surface of glass substrate.And, think that, by the combination of this functional group and antifouling coating material, antifouling coating further improves with respect to the stability of adhering to of glass substrate.
Like this, the inventor finds: by glass substrate being implemented to carry out in the following order the glass surface reformation processing of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, can make antifouling coating improve fully with respect to the stability of adhering to of glass substrate.And the inventor finds, by antifouling coating is improved fully with respect to the stability of adhering to of glass substrate, can improve the weather resistance of antifouling coating face,, can solve above-mentioned problem that is, has completed the present invention.
In addition, even if found, in the case of dip method high productivity is applied to coating treatment process, also can improve fully the adhere to stability of antifouling coating with respect to glass substrate, can make the weather resistance of antifouling coating face improve.
, the present invention has following structure.
(structure 1)
The manufacture method of cover-plate glass for a kind of electronics, it is the manufacture method that possesses the electronics cover-plate glass of the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, it is characterized in that, comprise: the side's major surfaces in a pair of major surfaces in above-mentioned glass substrate is implemented to carry out according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma to the glass surface reformation processing of these processing, form the operation of processed of glass; With after operation forming processed of above-mentioned glass, carry out, processed of above-mentioned glass is formed to the operation of antifouling coating.
(structure 2)
Manufacture method according to the electronics described in structure 1 with cover-plate glass, it is characterized in that, in the operation of the above-mentioned antifouling coating of formation, by by above-mentioned glass substrate mass-impregnation in antifouling coating material, form antifouling coating in the outside surface entirety of the above-mentioned glass substrate that comprises processed of above-mentioned glass.
(structure 3)
Manufacture method according to the electronics described in structure 1 or 2 with cover-plate glass, it is characterized in that, there is processing that above-mentioned antifouling coating to being formed at the opposing party's major surfaces in above-mentioned a pair of major surfaces implements the contact angle of surperficial water is reduced and be antifouling coating face and reform and process, form the operation that antifouling coating is reformed layer.
(structure 4)
Manufacture method according to the electronics described in any one in structure 1 to 3 with cover-plate glass, is characterized in that, the operation that is also included in processed of the above-mentioned glass of formation is carried out before, above-mentioned glass substrate is implemented to the operation of printing.
(structure 5)
Manufacture method according to the electronics described in structure 4 with cover-plate glass; it is characterized in that; before above-mentioned glass baseplate surface is implemented to above-mentioned printing; arrange until be implemented the rotten printing zone protective layer of above-mentioned printing for the protection of the printing zone in above-mentioned glass baseplate surface, make the contact angle of the surperficial water of above-mentioned printing zone protective layer reduce and reform or remove when stating on the implementation printing.
(structure 6)
Manufacture method according to the electronics described in structure 4 or 5 with cover-plate glass; it is characterized in that; in advance above-mentioned glass substrate is arranged to contact protection layer, when this contact protection layer prints for stating on the implementation, protect the contact for above-mentioned glass substrate of printing press or fixture.
(structure 7)
A kind of electronics cover-plate glass, it is the electronics cover-plate glass that possesses the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, it is characterized in that, the Rsk of the side's major surfaces in above-mentioned a pair of major surfaces is 0 ± 0.3, be formed with antifouling coating at one side major surfaces, the steel wool of #0000 is being pressed to 1kg/cm with face
2for the surface sliding of above-mentioned antifouling coating in the situation of 2000 times, the contact angle of the water in the surface of above-mentioned antifouling coating is more than 105 degree.
(structure 8)
According to the electronics cover-plate glass described in structure 7, it is characterized in that, above-mentioned antifouling coating has the surperficial adhering zone that is attached to above-mentioned glass substrate and the surperficial flow region that is configured in this adhering zone.
(structure 9)
According to the electronics cover-plate glass described in structure 8, it is characterized in that, the thickness of above-mentioned adhering zone is 40%～70% with respect to the ratio of the thickness of above-mentioned antifouling coating.
(structure 10)
According to the electronics cover-plate glass described in any one in structure 7 to 9, it is characterized in that, the opposing party's major surfaces in above-mentioned a pair of major surfaces is formed with to be reformed and processes and the antifouling coating reformation layer of formation for the antifouling coating face that the contact angle of surperficial water is reduced above-mentioned antifouling coating enforcement, be formed at the contact angle of the water in above-mentioned antifouling coating and the surface above-mentioned glass substrate opposition side of one side major surfaces in the scope of 110 degree～120 degree, the reform contact angle of the water in layer and surface above-mentioned glass substrate opposition side of the above-mentioned antifouling coating that is formed at above-mentioned the opposing party's major surfaces is below 20 degree.
(structure 11)
According to the electronics cover-plate glass described in structure 10, it is characterized in that, be formed at the contact angle of the n-Hexadecane in above-mentioned antifouling coating and the surface above-mentioned glass substrate opposition side of one side major surfaces in the scope of 60 degree～70 degree, the above-mentioned antifouling coating that is formed at above-mentioned the opposing party's major surfaces is reformed the contact angle of the n-Hexadecane in layer and surface above-mentioned glass substrate opposition side in the scope of 10 degree～20 degree.
(structure 12)
According to the electronics cover-plate glass described in any one in structure 7 to 11, it is characterized in that, be formed at kinetic friction coefficient in above-mentioned antifouling coating and the surface above-mentioned glass substrate opposition side of one side major surfaces in 0.1～0.3 scope.
(structure 13)
According to the electronics cover-plate glass described in any one in structure 7 to 12, it is characterized in that, above-mentioned antifouling coating forms by containing the fluorine resin material that has a perfluorinated polyether compound of hydroxyl at end group.
(structure 14)
According to the electronics cover-plate glass described in any one in structure 7 to 13, it is characterized in that, the fluorine resin material that above-mentioned antifouling coating is 2000～5000 by weight-average molecular weight forms.
(structure 15)
According to the electronics cover-plate glass described in any one in structure 7 to 14, it is characterized in that, above-mentioned glass substrate forms by having carried out chemical enhanced aluminosilicate glass.
(structure 16)
A kind of manufacture method of touch sensor module, to possess the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, and for detection of the manufacture method of the touch sensor module of user's operation, it is characterized in that, comprise: the side's major surfaces in a pair of major surfaces in above-mentioned glass substrate is implemented carry out the glass surface reformation processing of these processing and form processed of glass according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, for the above-mentioned glass substrate that has formed antifouling coating in the outside surface entirety of above-mentioned glass substrate that comprises processed of above-mentioned glass, the opposing party's major surfaces in above-mentioned a pair of major surfaces forms the operation that the antifouling coating face that the contact angle of surperficial water is reduced to above-mentioned antifouling coating enforcement is reformed the antifouling coating reformation layer of processing and form, operation with the outside surface formation insulation layer of the layer of reforming at above-mentioned antifouling coating and at least any one party of transparency conducting layer.
According to the present invention, can provide compared with the antifouling coating face based on dip method with in the past electronics cover-plate glass and the manufacture method thereof that can make weather resistance significantly improve.
And, electronics cover-plate glass and the manufacture method thereof that can make productivity improve, according to the present invention, can be provided compared with the antifouling coating processing with based on vapour deposition method.
And, according to the present invention, can provide and possess the manufacture method that the weather resistance of antifouling coating face is improved and make the touch sensor module of adhering to the glass substrate that stability improved of transparency conducting layer etc.
Brief description of the drawings
Fig. 1 is the concise and to the point sectional view that represents an embodiment of the electronics cover-plate glass the present invention relates to.
Fig. 2 is the schema of the manufacture method of the electronics that the present invention relates to cover-plate glass.
Fig. 3 is the concise and to the point sectional view that represents the manufacture method of the electronics cover-plate glass the present invention relates to by process sequence.
Fig. 4 is the vertical view that represents an example of the shape of cover-plate glass glass substrate.
Embodiment
Below, describe embodiments of the present invention in detail, but mainly electronics is described with the portable equipment cover-plate glass of an embodiment of cover-plate glass here.
Fig. 1 represents that an embodiment of the electronics cover-plate glass the present invention relates to is the concise and to the point sectional view of an embodiment of portable equipment cover-plate glass.
According to an embodiment of the invention shown in Fig. 1, the portable equipment the present invention relates to possesses flat glass substrate 1 with cover-plate glass 10.Glass substrate 1 has positive and negative a pair of major surfaces 1A, 1B and the end face 1C adjacent with this pair of major surfaces.Side's major surfaces 1A in above-mentioned a pair of major surfaces is formed with and is implemented glass surface processed of the glass of processing and form of reforming.And, be formed with antifouling coating 3 at processed of above-mentioned glass and above-mentioned end face 1C.
One of characteristic structure of the present invention is to be formed with processed of glass at one side major surfaces 1A, processed of this glass forms by being implemented glass surface reformation processing, and this glass surface is reformed and processed is by the processing of carrying out these processing with the order of lower plane (Planar) mode Cement Composite Treated by Plasma and following current (downstream) mode plasma body.
, reform and process and be formed with on the one side major surfaces 1A of processed of glass and be formed with above-mentioned antifouling coating 3 being implemented above-mentioned glass surface with in cover-plate glass 10 at the portable equipment that the present invention relates to.According to this structure, for example with in the past glass substrate is not implemented to surface treatment etc. especially and compared with the antifouling coating that forms by dip method, antifouling coating material improves with respect to the stability of adhering to of glass substrate, the weather resistance of antifouling coating face significantly improves.As also illustrated in the back, as antifouling coating material, preferably use fluorine resin material.But, utilize dip method by this fluorine resin coated materials to the glass substrate in the situation that, with respect to glass substrate to adhere to stability poor especially.Therefore, using such fluorine resin material as antifouling coating material, and utilize dip method to be coated in the situation of glass substrate, also particularly preferably can improve the present invention who adheres to stability and significantly improve the weather resistance of antifouling coating face with respect to glass substrate.
Wherein, according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma carry out these processing glass surface reform process detailed content will describe in detail in the back.
Here, the material of above-mentioned antifouling coating 3 is described.The portable equipment that uses touch panel operating method in the case of user, owing to using finger directly to touch its display frame of operation, so easily adhere to the dirts such as fingerprint in display frame.Therefore, expect to prevent or be suppressed in display frame, to adhere to the dirts such as fingerprint, even if or adhere to the also easily wiping of the dirts such as fingerprint.For this reason, as the material of above-mentioned antifouling coating 3, preferably select to use finger directly to touch (pressing) and also can prevent or suppress to adhere to the dirts such as fingerprint, even if or adhere to the also easy material with didirtresistance of wiping of the dirts such as fingerprint.In addition, the transparency is good also very important.In the present invention, as thering is good didirtresistance and also good material of the transparency, for example, preferably enumerate the material that fluorine resin material (for example having the perfluorinated polyether compound etc. of hydroxyl at end group) etc. reduces surface energy.
In addition, the opposing party's major surfaces 1B in the above-mentioned a pair of major surfaces of glass substrate 1 is formed with that above-mentioned antifouling coating 3 has been implemented to make the surface processing that the contact angle of water reduces is relatively the antifouling coating face antifouling coating processed and the form layer 3a that reform that reform.
Form antifouling coating 3 having formed on side's major surfaces 1A of processed of above-mentioned glass and above-mentioned end face 1C, but for example, make glass substrate mass-impregnation form antifouling coating 3 to antifouling coating material by dip method in the situation that, also form antifouling coating at above-mentioned the opposing party's major surfaces 1B.Use cover-plate glass 10 at the portable equipment of Fig. 1, conventionally by the above-mentioned major surfaces 1A side of glass substrate 1 of weather resistance that has improved antifouling coating face towards the outside of portable equipment, the opposing party's major surfaces 1B side of glass substrate 1 is installed towards the inner side of portable equipment.
Here, also can form transparency conducting layer in the major surfaces 1B of glass substrate 1 side (as required via insulation layer), be formed the touch sensor module that can generate the signal corresponding with user's operation by glass substrate 1 and transparency conducting layer.In this situation, if for example formed in the above-mentioned major surfaces 1B side of glass substrate 1 antifouling coating 3 being formed by fluorine resin material, at the outside surface of this antifouling coating 3, above-mentioned insulation layer, transparency conducting layer adhere to poor stability.Therefore, be difficult to form above-mentioned insulation layer, transparency conducting layer at the outside surface of antifouling coating 3, cannot form touch sensor module.
In the present invention, form by the above-mentioned the opposing party's major surfaces 1B in glass substrate 1 that above-mentioned antifouling coating 3 has been implemented to make the surface processing that the contact angle of water reduces is relatively that antifouling coating face is reformed and processed the antifouling coating the forming layer 3a that reform, can make to be formed at its outside surface insulation layer, transparency conducting layer adhere to stability raising.Reform and process as such antifouling coating face, for example, can enumerate the method such as the processing of helium (He) plasma exposure or uviolizing processing based on planar fashion.
Use in cover-plate glass 10 at the portable equipment the present invention relates to, be preferably formed the contact angle of the water in the surface (with the surface of glass substrate 1 opposition side) of the above-mentioned antifouling coating 3 of side's major surfaces 1A of above-mentioned glass substrate 1 in the scope of 110 degree～120 degree, the contact angle of oil, for example n-Hexadecane is in the scope of 60 degree～70 degree., in above-mentioned scope, can bring into play and to use finger directly to touch (pressing) by the contact angle for water or oil, also prevent or suppress to adhere to the dirts such as fingerprint, even or the also easy good didirtresistance of wiping such as the dirt that adheres to fingerprint etc.Wherein, above-mentioned contact angle is the initial contact angle after antifouling coating forms, but in the present invention, as mentioned above, owing to can improving the weather resistance of antifouling coating 3 of the major surfaces 1A that is formed at glass substrate 1, even so the endurance test of the slip based on steel wool (steel wool) of for example carrying out illustrating in embodiment described later, the reduction of contact angle is also little, can maintain good didirtresistance.
In addition, use in cover-plate glass 10 at portable equipment of the present invention, be preferably formed in the above-mentioned antifouling coating of the opposing party's major surfaces 1B of above-mentioned glass substrate 1 and reform the contact angle of the water in the surface (with the surface of glass substrate 1 opposition side) of layer 3a below 20 degree, the contact angle of oil, for example n-Hexadecane is in the scope of 10 degree～20 degree., in above-mentioned scope, can improve at the outside surface of antifouling coating reformation layer 3a and form the stability of adhering to above-mentioned insulation layer, transparency conducting layer by the contact angle for water or oil.
Wherein, in the present invention, above-mentioned contact angle is the value determining under the atmosphere of 22 ± 2 DEG C.
In addition, use in cover-plate glass 10 at portable equipment of the present invention, be preferably formed in kinetic friction coefficient in the surface (with the surface of glass substrate 1 opposition side) of the above-mentioned antifouling coating 3 of side's major surfaces 1A of above-mentioned glass substrate 1 scope 0.1～0.3, or static friction coefficient is in 0.2～0.4 scope.Because the surperficial kinetic friction coefficient by antifouling coating 3 or static friction coefficient are in above-mentioned scope, can make the sliding of antifouling coating face good, sense of touch during with finger touch is good, so in the portable equipment that possesses cover-plate glass of the present invention, that is undertaken by user is for example good to the operability of touch panel.
In the present invention, the glass that preferably forms above-mentioned glass substrate 1 is amorphous aluminosilicate glass.For the glass substrate being made up of such aluminosilicate glass, the intensity after chemical enhanced is high, is suitable for portable equipment cover-plate glass.As such aluminosilicate glass, for example, can use and contain SiO
2be 58～75 % by weight, Al
2o
3be 4～20 % by weight, Li
2o is 0～10 % by weight, Na
2o is the aluminosilicate glass of 4～20 % by weight as main component.
Consider from the viewpoint of the market requirement of lightening, the lightness of tackling nearest portable equipment, the thickness of preferred above-mentioned glass substrate 1 is for example in the scope of 0.3mm～1.5mm left and right, further preferably in the scope of 0.5mm～0.7mm left and right.
The manufacture method of the portable equipment cover-plate glass of an embodiment of the electronics cover-plate glass next, the such the present invention of above explanation being related to describes.
Fig. 2 is the schema of the manufacture method of the portable equipment that the present invention relates to cover-plate glass, and Fig. 3 is the concise and to the point sectional view that represents the manufacture method of the portable equipment cover-plate glass the present invention relates to by process sequence.
The portable equipment cover-plate glass the present invention relates to is to manufacture by the operation of following explanation.
[making glass substrate (step S0)]
Conventionally, the size that large-sized sheet glass cutting (panelization) is become to specify by mechanical workout etc., makes the glass substrate 1 that cover-plate glass is used.
For example, the thickness that manufacture by drop-down (down draw) method, floating method etc. stacked (lamination) multiple (for example tens left and right) is for example the sheet glass of 0.5mm left and right, uses glass to cut into the small pieces of prescribed level with cutter.Like this, if the sheet glass of a stacked state of cutting processing, due to small pieces that also can a shape machined layer overlapping state in ensuing shape manufacturing procedure, so favourable on producing.The size of considering the cover-plate glass to product adds that the size of the difference of peripheral shape machining need decides the size of small pieces.
Here, for outer shape processing, cutting processing that also can substitutable layer overlapping state and one by one process foliated glass material.In addition, in outer shape processing, as the means beyond mechanical workout, also can use etching method.
Wherein, the glass of above-mentioned glass substrate 1 composition as mentioned above.In addition, as mentioned above, consider from the viewpoint of the market requirement of lightening, the lightness of tackling nearest portable equipment, the thickness of preferred glass substrate 1 is for example in the scope of 0.3mm～1.5mm left and right, further preferably in the scope of 0.5mm～0.7mm left and right.
Next, by mechanical workout or etching and processing, the glass substrate 1 of the small pieces that are processed to this prescribed level is carried out to necessary Drilling operation, peripheral shape processing etc.
Fig. 4 is the vertical view that represents an example of the shape of glass substrate.In the example shown in Fig. 4, glass substrate 1 is formed with peripheral end face 1a, otch 1b, earhole 1c and button operation hole 1d.Also can carry out mechanical workout to such Drilling operation and peripheral shape processing by sand-blast etc., or also can unify to process these Drilling operations and peripheral shape processing by etching and processing.Especially in complicated shape processing, etching and processing is favourable.In addition, also can adopt mechanical workout and etching and processing according to machining shape simultaneously.And, dissolving pattern that also can be when suitably setting etching and processing, by foliated glass starting material panelization, with this panelization operation together in, make small pieces become the shape of the glass substrate 1 shown in Fig. 4.
Next, the glass substrate 1 of the shape processing that is through with is carried out to chemical enhanced processing.
As the method for chemical enhanced processing, for example, preferably to be no more than the temperature province of temperature of glass softening point, for example, carry out the low temperature modification ion exchange method etc. of ion-exchange with the following temperature of above 500 degree of 300 degree Celsius.Chemical enhanced processing is that the chemical enhanced salt by making melting contacts with glass substrate, alkali metal relatively large atomic radius in chemical enhanced salt is carried out to ion-exchange with the relative little alkali metal of atomic radius in glass substrate, make alkali metal that this ionic radius is large be impregnated into the top layer of glass substrate, the processing that produces stress under compression on the surface of glass substrate.As chemical enhanced salt, can preferably use the base metal nitrate such as saltpetre, SODIUMNITRATE.Because the intensity of the glass substrate that has carried out chemical enhanced processing improves, excellent impact resistance, so be applicable to be applied in impacts, press and the cover-plate glass that uses of the high-intensity portable equipment of needs.
Next, printing (printing process) is implemented in the surface of the glass substrate that has carried out above chemical enhanced processing.For example, as printed patterns, if enumerate the example of the cover-plate glass of mobile telephone, need profile around of the icon of mark, the touch panel etc. of Business Name, name of product, various sensor window, picture, the back side to press pattern etc. at least double-deck, many situations are for example the polychrome multi-ply construction of 8 layers of structure.As an example of the mode of printing of cover-plate glass, it is silk screen printing.
In addition,, in order to improve the press quality in printing process, specifically, in order to suppress rotten (variable color) that be printed position of the glass substrate because causing with contacting of air etc., also can implement in advance antifouling coating and be used as printing zone protective layer.In addition; in this printing process; owing to repeatedly carrying out glass substrate to be filled to the fixture of printing press according to print pass; the operation of then taking out from fixture; so also can implement in advance antifouling coating, be used as the back side, end face and the fixture multiple-contact for preventing glass substrate 1 and cause the contact protection layer that glass substrate 1 scratches.But, in order in press not hinder, preferably in the time of printing process, remove the antifouling coating of printing surface side, or for make this antifouling coating surperficial water contact angle reduce and the processing of reforming.
[glass surface is reformed and is processed (step S1)]
Next, the glass substrate 1 of making as described above (with reference to Fig. 3 (a)) being carried out to glass surface reformation processes.Conventionally, because the surperficial printing surface side that is formed at glass substrate 1 is installed towards the inner side of portable equipment, so to this printing surface opposition side, the glass baseplate surface that exposes towards the outside of portable equipment carries out glass surface and reforms and process.In Fig. 2 and Fig. 3, omit the record of printed layers, but be for example formed with printed layers in the opposing party's major surfaces 1B of glass substrate 1 side, be formed with processed 2, glass (with reference to Fig. 3 (b)) at side's major surfaces 1A.Processed 2 glass surface reformation processing of carrying out these processing according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma by enforcement of this glass forms.
Above-mentioned planar fashion Cement Composite Treated by Plasma is to have 2 discharge electrodes with a certain interval, and processed substrate is installed in this interval, and produces the mode that plasma body is processed.In this situation, the gas using as plasma generation, for example, use He, Ar or N
2deng.Between two electrodes, apply the required voltage of plasma generation, clashed into processed substrate surface at the ion of plasma space ionization by acceleration in this space.Thus, the measure of skewness (Rsk: the degree of bias) that glass baseplate surface is restructured as the profilograph of glass baseplate surface approaches 0, and departing from of the concaveconvex shape of glass baseplate surface diminishes.Here, preferably Rsk is in 0 ± 0.3 scope, further preferably in 0 ± 0.15 scope.
In addition, concurrent Cement Composite Treated by Plasma is to applying the required voltage of plasma generation between two electrodes of the feed path arranged opposite across to processed substrate supply gas, and the gas of plasma body is irradiated to the mode that processed substrate is processed that is supplied to.By irradiate excitation gas to processed substrate surface, for example form the functional group such as hydroxyl, carboxyl at substrate surface, carry out the reformation of substrate surface.In addition, also can be used in the removal of the organic pollutant of substrate surface.As the gas using in this situation, for example, use N
2with O
2or the mixed gas of air etc.
In the present invention, importantly reform and process as glass surface, process by carry out these according to the order of above-mentioned planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, form processed 2, above-mentioned glass.Process by carrying out this glass surface reformation, for example with in the past especially glass substrate is not implemented to surface treatment etc. and compared with the antifouling coating that forms by dip method, antifouling coating material improves with respect to the stability of adhering to of glass substrate, can make the weather resistance of antifouling coating face significantly improve.As the antifouling coating material that is coated on glass surface, preferably use fluorine resin material.But, by dip method by this fluorine resin coated materials to the glass substrate in the situation that, with respect to glass substrate to adhere to stability poor especially.Therefore, in the case of using such fluorine resin material to be coated to glass substrate as antifouling coating material and by dip method, also can improve the stability of adhering to respect to glass substrate, the weather resistance of antifouling coating face is significantly improved.
In the present invention, the in the situation that of above-mentioned planar fashion Cement Composite Treated by Plasma, preferred used reactant gases is He, Ar or N
2, more preferably He.In addition, although according to the kind of used reactant gases and more or less different, preferably use the scope of electric power at 200～500W, more preferably 300～400W.In addition, the scope that is preferably 10～250 seconds in the treatment time is processed, more preferably 30～90 seconds.On the other hand, the in the situation that of above-mentioned concurrent Cement Composite Treated by Plasma, preferred used reactant gases is non-active gas and air or O
2mixed gas, more preferably N
2mixed gas with air.In addition, although according to the kind of used reactant gases and more or less different, preferably use the scope of electric power at 400～1200W, further preferably in the scope of 600～1000W.In addition, as the treatment time, preferably process the scope of 5～60 seconds, further preferably process the scope of 10～15 seconds.
In the present invention, reform and process as glass surface, carry out these two processing of above-mentioned planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, but as the order of these two processing, as mentioned above, first carry out above-mentioned planar fashion Cement Composite Treated by Plasma, next carry out above-mentioned concurrent Cement Composite Treated by Plasma.Thus, owing to making glass surface change of shape, and then generate functional group at glass surface, can bring into play action effect of the present invention, so preferably.
[forming antifouling coating (step S2)]
Next, as described above, reform and process and formed on the glass substrate 1 of processed of glass and form antifouling coating 3 (with reference to Fig. 3 (c)) side's major surfaces 1A being carried out to glass surface.
In the present invention, preference forms above-mentioned antifouling coating 3 as applied by dip method.Dip method is by making above-mentioned glass substrate 1 mass-impregnation in coating liquid, and after being taken out, be dried and carry out, wherein, above-mentioned coating liquid is for example to contain above-mentioned fluorine resin as the coating liquid of main component as antifouling coating material in suitable solvent.According to this dip method, even if do not use vacuum film formation apparatus, also can on whole of above-mentioned glass substrate 1, form the antifouling coating 3 of homogeneous film thickness.
The coating thickness of above-mentioned antifouling coating 3 is not particularly limited, but preference is as the scope at 0.3nm～30nm.If thickness deficiency 0.3nm, weather resistance deficiency, existence can not be given full play to the possibility of anti-pollution function.On the other hand, if thickness exceedes 30nm, because the transparency reduces, so do not meet the requirement of portable equipment.
As mentioned above, in the time being mounted to the display panel of portable equipment, because the major surfaces 1A of the glass substrate 1 exposing in the face side of portable equipment is formed with reformation is processed based on glass surface processed of the present invention, utilize the stability of adhering to of the antifouling coating 3 of above-mentioned dip method formation to improve, so compared with the antifouling coating face based on dip method in the past, can make weather resistance significantly improve.
In addition, due in the time that cover-plate glass has been applied to external force, the impact of glass baseplate surface, because antifouling coating is relaxed, is not easy in glass substrate, to produce the crack causing because of the strength decreased of the glass as hard brittle material, so can make the physical strength of cover-plate glass improve.,, by carrying out forming antifouling coating on chemical enhanced glass substrate, can make further to improve as the physical strength of cover-plate glass.
Above-mentioned antifouling coating has the surperficial adhering zone that is attached to glass substrate and the surperficial flow region that is configured in adhering zone.Adhering zone is the molecule of coated material and the region of being firmly combined in the surperficial functional group such as hydroxyl, carboxyl of glass substrate.Flow region is molecular entanglement each other of coated material and maintain the region of state.The composition of adhering zone and flow region is identical, and that on microphotograph etc., observes does not have difference in appearance.But flow region is easily dissolved in solvent, adhering zone is not easy to dissolve in solvent.Therefore, can be identified as adhering zone is for example, impregnated in solvent (flooding a minute) in HFE time residual region, and flow region is the region of dissolving while impregnated in solvent.The thickness of adhering zone and flow region for example can be measured by the ellipsometer MARY-102 of FiveLab company system.
Here, preferably the thickness of adhering zone is 40%～70% with respect to the ratio of the thickness of above-mentioned antifouling coating.If this is because the ratio less than 40% of the thickness of adhering zone can not be brought into play weather resistance.In addition, if the ratio 70% of the thickness of adhering zone is large, can not bring into play sliding.And, if 40%～70%, can bring into play better weather resistance and sliding.In addition, for the ratio of the thickness of adhering zone being made as to 40%～70% and bring into play better weather resistance and sliding, further preferably use fluorine resin material that weight-average molecular weight is 2000～5000 as coated material.
In order to adjust the thickness of this adhering zone, specifically can cure processing, uviolizing processing, vacuum tightness adjustment processing based on decompression etc.
Curing in processing, by heating with the temperature more than vaporization temperature of solvent in constant temperature oven, can make antifouling coating dry.Preferably Heating temperature is 120 DEG C～180 DEG C.Preferably be 30 minutes～1 hour heat-up time.Here, Heating temperature is higher, in addition heat-up time longer, can make the thickness of flow region more reduce.Accompany therewith, can promote by heat the surperficial combination of molecule and the glass substrate of the coated material that forms adhering zone, adhering zone is expanded.
In addition, in uviolizing is processed, as ultraviolet ray, the preferably ultraviolet ray of its wavelength from 150 to 400 nanometers.In addition, as ultraviolet light source, for example, can use Cooper-Hewitt lamp, high pressure mercury vapour lamp or extra-high-pressure mercury vapour lamp etc.In addition, the illumination of ultraviolet light source can be made as to 300[cmW/cm
2] left and right.Ultraviolet illumination is higher, and irradiation time is longer in addition, can make the thickness of flow region more reduce.In addition, in uviolizing is processed, also can adjust envrionment temperature, implement heat treated simultaneously.Thus, can make adhering zone expand.
In addition, in vacuum tightness adjustment is processed, the mode of the air pressure by the vapour pressure to become not enough solvent is adjusted vacuum tightness, can make solvent evaporation.Vacuum tightness higher (make air pressure reduce), in addition the treatment time longer, can make the thickness of flow region more reduce.In addition, in vacuum tightness adjustment is processed, also can adjust envrionment temperature, implement heat treated simultaneously.Thus, can make adhering zone expand.
[antifouling coating face is reformed and is processed (step S3)]
Next, the processing that the contact angle of surperficial water is reduced to the antifouling coating that is formed at the opposing party's major surfaces 1B 3 enforcements in above-mentioned glass substrate 1 is that the reformation of antifouling coating face is processed, and forms an antifouling coating reformation layer 3a (with reference to Fig. 3 (d)).
Form antifouling coating 3 at the side's major surfaces 1A and the above-mentioned end face 1C that have formed processed of above-mentioned glass, but for example, make glass substrate mass-impregnation to form antifouling coating 3 in antifouling coating material in the situation that by dip method, also form antifouling coating at above-mentioned the opposing party's major surfaces 1B.Here, the major surfaces 1B side of the glass substrate 1 of sometimes installing in inner side towards portable equipment for example forms one of them of insulation layer, transparency conducting layer, becomes the touch sensor module for detection of the user's of portable equipment operation.Under these circumstances, the above-mentioned antifouling coating that be formed at above-mentioned the opposing party major surfaces 1B 3 of the present invention by glass substrate 1 implement to make processing that the contact angle of surperficial water reduces also antifouling coating face reform to process and form the antifouling coating layer 3a that reform, can make to be formed at thus the insulation layer of its outside surface, the stability of adhering to of transparency conducting layer improves.In addition, by forming an above-mentioned antifouling coating reformation layer 3a, with directly form the situation of insulation layer, transparency conducting layer at the above-mentioned major surfaces 1B of glass substrate 1 compared with, can also obtain stability-enhanced effect of adhering to of these layers.
Reform and process as such antifouling coating face, preferably enumerate for example method such as the processing of the helium based on planar fashion (He) plasma exposure or uviolizing processing.The condition such as irradiation energy, irradiation dose (irradiation time) when carrying out uviolizing, about carrying out the condition such as energy of plasma, treatment time of plasma exposure while processing, can suitably select preferred condition to implement in addition.Can be according to these uviolizing conditions or plasma exposure treatment condition, adjust the thickness of the depth direction of the antifouling coating reformation layer 3a that is formed at antifouling coating 3.
Wherein, above-mentioned transparency conducting layer along be formed at glass substrate 1 major surfaces 1B antifouling coating reform layer 3a outside surface with regulation thickness form.For " thickness of regulation " of this transparency conducting layer, be for example below 100nm by the sputtering film-forming in the situation that, by print process film forming in the situation that, including becoming the transparent resin of tackiness agent, be below 1000nm.
Particularly, by using sputtering method etc. at above-mentioned antifouling coating reform outside surface film forming transparency conducting layer, for example film forming ITO (Indium Tin Oxide: the indium tin oxide) film of layer 3a, and use optical lithography or basic wave, CO based on YAG (Yttrium Aluminum Garnet: yttrium aluminum garnet)
2the laser patterning technology of laser etc. is processed into desirable pattern form by transparency conducting layer and forms.In addition, connection section (metal line) is by forming metallic membrane with sputtering method etc. at the metal conducting material of surface filming of the printing zone of glass substrate, and uses optical lithography etc. metallic membrane is processed into desirable pattern form and forms.
In addition, respectively as required, between above-mentioned antifouling coating is reformed the surface and transparency conducting layer of layer 3a, above-mentioned antifouling coating reforms and form insulation layer between the surface of layer 3a and connection section (metal line).Preferably this insulation layer uses and has transparent insulativity material, for example, use SiO
2form etc. inorganic materials.In addition, preference, as used sputtering method etc., is formed as the thickness of insulation layer
left and right.
Manufacture as described above the cover-plate glass 10 for portable equipment of present embodiment, and be mounted to portable equipment.
In addition, the present invention also provides the manufacture method of touch sensor module., to possess the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, and for detection of the manufacture method of the touch sensor module of user's operation, it is characterized in that, comprise: the side's major surfaces in a pair of major surfaces of above-mentioned glass substrate forms by having implemented glass surface and reforms and process processed of the glass that forms, for the above-mentioned glass substrate that has formed antifouling coating in processed of above-mentioned glass, the opposing party's major surfaces in above-mentioned a pair of major surfaces forms the operation that the antifouling coating face that the contact angle of surperficial water is reduced to above-mentioned antifouling coating enforcement is reformed the antifouling coating reformation layer of processing and form, operation with the outside surface formation insulation layer of the layer of reforming at above-mentioned antifouling coating and at least any one party of transparency conducting layer.
According to the manufacture method of touch sensor module of the present invention, can obtain possessing the weather resistance of antifouling coating face is improved, and make the touch sensor module of adhering to stability-enhanced glass substrate of transparency conducting layer etc.
In addition, in the above embodiment, the situation of carrying out antifouling coating processing by pickling process is illustrated, but in the present invention, antifouling coating treatment process is not limited to pickling process, for example, also can apply spin-coating method, spray method, vapour deposition method, spread coating etc.
Embodiment
Below enumerate embodiment, more specifically the present invention will be described.Here, the electronics the present invention relates to is described with the embodiment of the portable equipment cover-plate glass of an embodiment of cover-plate glass.In addition, the present invention is not limited to following embodiment.
(embodiment 1)
Manufactured the portable equipment cover-plate glass of the present embodiment via following (1) glass substrate production process, (2) glass surface reformation treatment process, (3) antifouling coating formation operation, (4) antifouling coating face reformation treatment process.
(1) glass substrate production process
First, the sheet glass that is 0.5mm from the thickness being made up of aluminosilicate glass producing by glass tube down-drawing, floating method cuts out the size of regulation, produces the glass substrate that cover-plate glass is used.As this aluminosilicate glass, use and contained SiO
2: 58～75 % by weight, Al
2o
3: 4～20 % by weight, Li
2o:3～10 % by weight, Na
2the chemical enhanced glass of using of O:4～13 % by weight.
Next, use emery wheel (little opening footpath processing with) etc. to hole to above-mentioned glass substrate, and the shape of for example having implemented above-mentioned peripheral end face is as shown in Figure 4 processed.
Next, implement chemical enhanced to the glass substrate of the above-mentioned shape processing that is through with.In chemical enhanced, prepare the chemical enhanced liquid that saltpetre and SODIUMNITRATE are mixed to get, this chemical enhanced solution is heated to 380 DEG C, the cleaning after above-mentioned shape processing, dry complete glass substrate are flooded about four hours, carry out chemical enhanced processing.The chemical enhanced glass substrate that is through with is impregnated into successively in each rinse bath of sulfuric acid, neutral lotion, pure water, pure water, IPA, IPA (steam drying), carries out ultrasonic cleaning, then dry.
For the glass substrate that has carried out above-mentioned chemical enhanced processing, implement printing process at its opposing party's major surfaces., formed the printed layers (China ink layer) of regulation by silk screen printing.
Like this, the glass substrate that completed.
(2) glass surface reformation treatment process
Carry out glass surface reformation processing to the above-mentioned glass substrate completing with major surfaces printing surface opposition side.
Particularly, first carried out the Cement Composite Treated by Plasma based on planar fashion according to following condition.
Reactant gases: He
Use electric power: 300W
Treatment time: 180 seconds
Next, carried out the Cement Composite Treated by Plasma based on concurrent according to following condition.
Reactant gases: N
2(80 liters/min of flows)+air (80 liters/min of flows)
Use electric power: 800W
Treatment time: 13 seconds
(3) antifouling coating forms operation
Use the coating liquid (25 DEG C of liquid temperatures) that by solvent, fluorine resin (chemical industrial company of SHIN-ETSU HANTOTAI system (trade name) KY100 series) is adjusted to proper concn, whole the antifouling coating that coating is made up of above-mentioned fluorine resin of the glass substrate of processing in the above-mentioned glass surface reformation that is through with by dip method, carries out warm air drying with 100 DEG C.The coating thickness of antifouling coating is 10nm.The thickness of this antifouling coating is that the ellipsometer MARY-102 based on FiveLab company system measures the measured value obtaining.
Having carried out the contact angle for water (initial contact angle) that above-mentioned glass surface reforms in the antifouling coating surface that the glass substrate major surfaces processed forms is 115 degree.Wherein, contact angle is according to JIS R3257, and the contact angle instrument DM-501 mensuration of use consonance interface science company system.
(4) antifouling coating face reformation treatment process
Antifouling coating to the printing surface side that is formed at above-mentioned glass substrate has carried out the Cement Composite Treated by Plasma based on planar fashion according to following condition.
Reactant gases: He
Apply voltage: 300W
Treatment time: 5 seconds
The contact angle for water in antifouling coating surface before above-mentioned Cement Composite Treated by Plasma is 115 degree, but contact angle after above-mentioned Cement Composite Treated by Plasma drops to below 20 degree.
Complete like this cover-plate glass of the present embodiment.
For the cover-plate glass obtaining, measure respectively static friction coefficient and the kinetic friction coefficient on antifouling coating surface, result, static friction coefficient is 0.35, kinetic friction coefficient is 0.21.This condition determination has used load 50gf, sliding velocity 50mm/ second, sliding distance 50mm, front end surface material to be shaped as the sliding part of curved shape for polyethylene and front end.
And, for the cover-plate glass obtaining, measured respectively surface roughness Ra, Rq, degree of bias Rsk and the sharp degree Rku of major surfaces.Wherein, these parameters are the parameters that specified by JIS B0601:2001.For example, these parameters are by the scan-type detector microscope (atomic force microscope of Japanese Veeco company system; AFM) nanoscope is measured, and for surface roughness Ra, can calculate by the method being specified by JIS R1683:2007.In the present embodiment, in the square mensuration region of 1 μ m × 1 μ m, can use the value while having carried out measuring with the resolving power of 512 × 128 pixels.This measurement result is illustrated in table 1.Wherein, in table 1, planar fashion is denoted as to P mode, concurrent is denoted as to D mode.
[table 1]
| P mode has or not the treatment time [second] | D mode has or not | Ra[nm] | Rq[nm] | Rku | Rsk | |
| Embodiment 1 | 180 | Have | 1.02 | 1.28 | 3.14 | 0.10 |
| Embodiment 2 | 60 | Have | 1.05 | 1.31 | 2.96 | 0.04 |
| Embodiment 3 | 30 | Have | 1.06 | 1.31 | 2.81 | 0.07 |
| Comparative example 3 | Nothing | Have | 1.03 | 1.33 | 3.92 | 0.67 |
In addition, antifouling coating surface to the cover-plate glass obtaining, carried out to being formed at the antifouling coating surface that above-mentioned glass surface is reformed the glass substrate major surfaces of processing, (face is pressed 1kg/cm with the 1kg that loads to make steel wool (#0000)
2) slide, check the variation of the contact angle for water in antifouling coating surface.This measurement result is illustrated in table 2.In the cover-plate glass of the present embodiment, more than having confirmed that 2000 contact angles after slip are guaranteed 110 degree, the reduction starting from initial contact angle (115 degree) is less, can make the weather resistance of antifouling coating face significantly improve.
[table 2]
(embodiment 2)
Except in embodiment 1 (2) glass surface reformation treatment process, the plasma treatment time of planar fashion was made as beyond 60 seconds, manufacture in the same manner cover-plate glass with embodiment 1.
For the antifouling coating surface of the cover-plate glass obtaining, the parameters such as surfaceness and contact angle are measured similarly to Example 1.These results are illustrated in table 1,2.In the cover-plate glass of the present embodiment, more than having confirmed that the contact angle sliding after 2000 times is guaranteed 105 degree, also can improve in the present embodiment the weather resistance of antifouling coating face.
(embodiment 3)
Except in embodiment 1 (2) glass surface reformation treatment process, the plasma treatment time of planar fashion was made as beyond 30 seconds, manufacture in the same manner cover-plate glass with embodiment 1.
For the antifouling coating surface of the cover-plate glass obtaining, the parameters such as surfaceness and contact angle are measured similarly to Example 1.These results are illustrated in table 1,2.In the cover-plate glass of the present embodiment, more than can confirming that the contact angle sliding after 2000 times is guaranteed 105 degree, also can improve in the present embodiment the weather resistance of antifouling coating face.
(comparative example 1)
Except omitting (2) glass surface reformation treatment process of embodiment 1, manufacture in the same manner cover-plate glass with embodiment 1.
For the antifouling coating surface of the cover-plate glass obtaining, measure similarly to Example 1 contact angle.The results are shown in table 2.In the cover-plate glass of this comparative example, the contact angle sliding after 1000 times is reduced to below 100 degree., confirmed not carry out glass surface reformation of the present invention and processed, even if formation antifouling coating can not fully obtain the weather resistance of antifouling coating face.
(comparative example 2)
The Cement Composite Treated by Plasma of the concurrent in (2) glass surface reformation treatment process of omission embodiment 1, manufacture in the same manner cover-plate glass with embodiment 1.
For the antifouling coating surface of the cover-plate glass obtaining, measure similarly to Example 1 contact angle.The results are shown in table 2.In the cover-plate glass of this comparative example, the contact angle sliding after 1000 times is reduced to below 105 degree, and the contact angle sliding after 2000 times is reduced to below 100 degree., confirmed not carry out glass surface reformation of the present invention and processed, even if formation antifouling coating can not fully obtain the weather resistance of antifouling coating face.
(comparative example 3)
The Cement Composite Treated by Plasma of the planar fashion in (2) glass surface reformation treatment process of omission embodiment 1, manufacture in the same manner cover-plate glass with embodiment 1.
For the antifouling coating surface of the cover-plate glass obtaining, the parameters such as surfaceness and contact angle are measured similarly to Example 1.These results are illustrated in table 1, table 2.In the cover-plate glass of this comparative example, the contact angle sliding after 1000 times is reduced to below 100 degree., confirmed not carry out glass surface reformation of the present invention and processed, even if formation antifouling coating can not fully obtain the weather resistance of antifouling coating face.
As mentioned above, in embodiment 1～3, confirm to approach 0 with the Rsk of the profilograph of glass baseplate surface, and the mode glass baseplate surface of reforming that the Rku of the profilograph of glass baseplate surface is reduced, diminishes the departing from of concaveconvex shape of glass baseplate surface.And, confirm the surface of having implemented the glass substrate after planar fashion Cement Composite Treated by Plasma has further been implemented in the glass baseplate surface after concurrent Cement Composite Treated by Plasma, the antifouling coating applying by dip method further improves with respect to the stability of adhering to of glass substrate, compared with not implementing the situation (comparative example 1～3) of Cement Composite Treated by Plasma of two modes, can improve the weather resistance of antifouling coating face.
In addition, measured the thickness of the adhering zone in above-described embodiment 1～3 with respect to the ratio of the thickness of antifouling coating, the scope that result is 40%～70% by above-mentioned method.
(embodiment 4)
Next the antifouling coating reformation face in the glass substrate of, producing in embodiment 1 by sputtering method has formed with SiO
2for the insulation layer of main component.Next, formed ELD on the surface of above-mentioned insulation layer.Particularly, ELD forms by sputtering film-forming ITO (Indium Tin Oxide) film, uses optical lithography that above-mentioned ELD is processed to form as desirable pattern form.In addition, metal line carrys out film forming conducting material with sputtering method and forms, and by optical lithography, conducting objects plasma membrane is processed into desirable pattern form, has manufactured touch sensor module.
For the touch sensor module of the present embodiment, the tack on above-mentioned insulation layer and ELD and cover-plate glass surface is good, can bring into play the desirable function as touch sensor module.
(comparative example 4)
In embodiment 1, not to implemented the reform surperficial antifouling coating of the surface opposite processed of glass surface and implement Cement Composite Treated by Plasma based on planar fashion ((4) antifouling coating face reform processing) and attempt having manufactured similarly to Example 4 touch sensor module.But in this comparative example, the tack on insulation layer and ELD and cover-plate glass surface is poor, a part for insulation layer and ELD is non-cohesive on cover-plate glass surface and cannot film forming, can not manufacture touch sensor module.
Nomenclature: 1... cover-plate glass glass substrate; The major surfaces of 1A, 1B... glass substrate; The end face of 1C... glass substrate; 2... processed of glass; 3... antifouling coating; 3a... antifouling coating reformation layer; 10... portable equipment cover-plate glass.
Claims (16)
1. a manufacture method for cover-plate glass for electronics, described electronics possesses the glass substrate with the end face that a pair of major surfaces is adjacent with this pair of major surfaces with cover-plate glass, and this electronics is characterised in that by the manufacture method of cover-plate glass, comprises:
Side's major surfaces in a pair of major surfaces in described glass substrate is implemented to carry out according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma to the glass surface reformation processing of these processing, form the operation of processed of glass; With
After the operation that forms processed of described glass, carry out, processed of described glass is formed to the operation of antifouling coating.
2. the manufacture method of cover-plate glass for electronics according to claim 1, is characterized in that,
Forming in the operation of described antifouling coating, by by described glass substrate mass-impregnation in antifouling coating material, form antifouling coating in the outside surface entirety of the described glass substrate that comprises processed of described glass.
3. the manufacture method of cover-plate glass for electronics according to claim 2, is characterized in that,
There is processing that described antifouling coating to being formed at the opposing party's major surfaces in described a pair of major surfaces implements the contact angle of surperficial water is reduced and be antifouling coating face and reform and process, form the operation that antifouling coating is reformed layer.
4. the manufacture method with cover-plate glass according to the electronics described in any one in claims 1 to 3, is characterized in that,
Before being also included in the operation that forms processed of described glass, carry out, described glass substrate is implemented to the operation of printing.
5. the manufacture method of cover-plate glass for electronics according to claim 4, is characterized in that,
Before described glass baseplate surface is implemented to described printing; arrange until implement the rotten printing zone protective layer of described printing for the protection of the printing zone in described glass baseplate surface, in the time implementing described printing for reduce described printing zone protective layer surperficial water contact angle and reform or remove printing zone protective layer.
6. the manufacture method with cover-plate glass according to the electronics described in claim 4 or 5, is characterized in that,
Contact protection layer is set in advance on described glass substrate, and this contact protection layer for protecting with contacting of printing press or its fixture described glass substrate in the time implementing described printing.
7. an electronics cover-plate glass, is the electronics cover-plate glass that possesses the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, it is characterized in that,
The Rsk of the side's major surfaces in described a pair of major surfaces is 0 ± 0.3,
Be formed with antifouling coating at one major surfaces,
The steel wool of #0000 is being pressed to 1kg/cm with face
2in situation with respect to the surface sliding of described antifouling coating 2000 times, the contact angle of the water in the surface of described antifouling coating is more than 105 degree.
8. electronics cover-plate glass according to claim 7, is characterized in that,
Described antifouling coating has the surperficial adhering zone that is attached to described glass substrate and the surperficial flow region that is configured in this adhering zone.
9. electronics cover-plate glass according to claim 8, is characterized in that,
The thickness of described adhering zone is 40%～70% with respect to the ratio of the thickness of described antifouling coating.
10. according to the electronics cover-plate glass described in any one in claim 7 to 9, it is characterized in that,
The opposing party's major surfaces in described a pair of major surfaces is formed with antifouling coating reformation layer, and this antifouling coating reformation layer forms by the antifouling coating face reformation processing that described antifouling coating enforcement is used for to the contact angle reduction that makes surperficial water,
Be formed at the contact angle of the water in described antifouling coating and the surface described glass substrate opposition side of one major surfaces in the scope of 110 degree～120 degree, the reform contact angle of the water in layer and surface described glass substrate opposition side of the described antifouling coating that is formed at described the opposing party's major surfaces is below 20 degree.
11. electronics cover-plate glass according to claim 10, is characterized in that,
Be formed at the contact angle of the n-Hexadecane in described antifouling coating and the surface described glass substrate opposition side of one major surfaces in the scope of 60 degree～70 degree, the described antifouling coating that is formed at described the opposing party's major surfaces is reformed the contact angle of the n-Hexadecane in layer and surface described glass substrate opposition side in the scope of 10 degree～20 degree.
12. according to the electronics cover-plate glass described in any one in claim 7 to 11, it is characterized in that,
Be formed at kinetic friction coefficient in described antifouling coating and the surface described glass substrate opposition side of one major surfaces in 0.1～0.3 scope.
13. according to the electronics cover-plate glass described in any one in claim 7 to 12, it is characterized in that,
Described antifouling coating is made up of the fluorine resin material that has the perfluorinated polyether compound of hydroxyl at end group containing tool.
14. according to the electronics cover-plate glass described in any one in claim 7 to 13, it is characterized in that,
The fluorine resin material that described antifouling coating is 2000～5000 by weight-average molecular weight forms.
15. according to the electronics cover-plate glass described in any one in claim 7 to 14, it is characterized in that,
Described glass substrate forms by having carried out chemical enhanced aluminosilicate glass.
The manufacture method of 16. 1 kinds of touch sensor modules, described touch sensor module possesses the glass substrate with a pair of major surfaces and the end face adjacent with this pair of major surfaces, and for detection of user's operation, the manufacture method of this touch sensor module is characterised in that, comprising:
Side's major surfaces in a pair of major surfaces in described glass substrate is implemented to carry out according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma to the glass surface reformation processing of these processing, form processed of glass, for the described glass substrate that has formed antifouling coating in the outside surface entirety of described glass substrate that comprises processed of described glass, the opposing party's major surfaces in described a pair of major surfaces forms the operation that the antifouling coating face that the contact angle of surperficial water is reduced to described antifouling coating enforcement is reformed the antifouling coating reformation layer of processing and form, with
Form the operation of at least any one party of insulation layer and transparency conducting layer at the outside surface of described antifouling coating reformation layer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011272550 | 2011-12-13 | ||
| JP2011-272550 | 2011-12-13 | ||
| PCT/JP2012/082321 WO2013089178A1 (en) | 2011-12-13 | 2012-12-13 | Cover glass for electronic instrument, method for manufacturing same, and method for manufacturing touch sensor module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103974919A true CN103974919A (en) | 2014-08-06 |
| CN103974919B CN103974919B (en) | 2016-07-06 |
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| CN201280060645.3A Active CN103974919B (en) | 2011-12-13 | 2012-12-13 | The manufacture method of electronic equipment cover-plate glass and manufacture method and touch sensor module |
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| Country | Link |
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| JP (1) | JP5270810B1 (en) |
| CN (1) | CN103974919B (en) |
| WO (1) | WO2013089178A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001126A (en) * | 2014-11-20 | 2017-08-01 | 旭硝子株式会社 | Transparent panel, touch pad and touch-screen |
| CN107591085A (en) * | 2016-07-06 | 2018-01-16 | 三星显示有限公司 | The manufacture method of the display device and form of form including the form |
| CN110028229A (en) * | 2017-12-18 | 2019-07-19 | Ａｇｃ株式会社 | Glass substrate for display |
| US11274063B2 (en) | 2015-08-10 | 2022-03-15 | AGC Inc. | Glass plate with antifouling layer |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582955B (en) * | 2012-09-28 | 2017-05-31 | Hoya株式会社 | Electronic equipment cover glass and its manufacture method |
| JP6559397B2 (en) * | 2014-01-30 | 2019-08-14 | 大日本印刷株式会社 | Front protective plate with electrodes for display |
| CN204270267U (en) * | 2014-02-28 | 2015-04-15 | 宸鸿科技(厦门)有限公司 | A kind of compound substrate structure and there is the contact panel of compound substrate structure |
| CN204270266U (en) * | 2014-02-28 | 2015-04-15 | 宸鸿科技(厦门)有限公司 | A kind of compound substrate structure and there is the contact panel of compound substrate structure |
| JP6349126B2 (en) * | 2014-03-31 | 2018-06-27 | 株式会社ダイセル | Transparent laminated film for pen input device and method for producing the same |
| JP6686449B2 (en) * | 2016-01-12 | 2020-04-22 | Ａｇｃ株式会社 | Glass substrate with antifouling layer and front plate for display |
| JP6969626B2 (en) * | 2016-01-12 | 2021-11-24 | Ａｇｃ株式会社 | Manufacturing method of glass substrate with antifouling layer |
| JP7377485B2 (en) * | 2018-06-12 | 2023-11-10 | 三星ディスプレイ株式會社 | Windows and display devices including windows |
| CN110599901B (en) * | 2018-06-12 | 2023-09-08 | 三星显示有限公司 | Window and display device including the same |
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| JPS57149850A (en) * | 1981-03-11 | 1982-09-16 | Toshiba Corp | Surface treatment of glass |
| JP4026538B2 (en) * | 2003-05-12 | 2007-12-26 | 松下電工株式会社 | Plasma processing method and plasma processing apparatus |
| WO2012132935A1 (en) * | 2011-03-31 | 2012-10-04 | Hoya株式会社 | Method for manufacturing cover glass for electronic device, cover glass for electronic device, glass plate for cover glass used for electronic device, and method for manufacturing touch sensor module |
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2012
- 2012-12-13 WO PCT/JP2012/082321 patent/WO2013089178A1/en active Application Filing
- 2012-12-13 JP JP2013506389A patent/JP5270810B1/en active Active
- 2012-12-13 CN CN201280060645.3A patent/CN103974919B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149850A (en) * | 1981-03-11 | 1982-09-16 | Toshiba Corp | Surface treatment of glass |
| JP4026538B2 (en) * | 2003-05-12 | 2007-12-26 | 松下電工株式会社 | Plasma processing method and plasma processing apparatus |
| WO2012132935A1 (en) * | 2011-03-31 | 2012-10-04 | Hoya株式会社 | Method for manufacturing cover glass for electronic device, cover glass for electronic device, glass plate for cover glass used for electronic device, and method for manufacturing touch sensor module |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001126A (en) * | 2014-11-20 | 2017-08-01 | 旭硝子株式会社 | Transparent panel, touch pad and touch-screen |
| TWI667213B (en) * | 2014-11-20 | 2019-08-01 | 日商Ａｇｃ股份有限公司 | Transparent board, touchpad and touch panel |
| US10474283B2 (en) | 2014-11-20 | 2019-11-12 | AGC Inc. | Transparent plate, touch pad, and touch panel |
| CN107001126B (en) * | 2014-11-20 | 2020-04-10 | Ａｇｃ株式会社 | Transparent plate, touch panel, and touch screen |
| US11274063B2 (en) | 2015-08-10 | 2022-03-15 | AGC Inc. | Glass plate with antifouling layer |
| CN107591085A (en) * | 2016-07-06 | 2018-01-16 | 三星显示有限公司 | The manufacture method of the display device and form of form including the form |
| CN107591085B (en) * | 2016-07-06 | 2021-05-25 | 三星显示有限公司 | Window, display device comprising same and manufacturing method of window |
| CN110028229A (en) * | 2017-12-18 | 2019-07-19 | Ａｇｃ株式会社 | Glass substrate for display |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013089178A1 (en) | 2015-04-27 |
| WO2013089178A1 (en) | 2013-06-20 |
| CN103974919B (en) | 2016-07-06 |
| JP5270810B1 (en) | 2013-08-21 |
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