CN103974919B

CN103974919B - The manufacture method of electronic equipment cover-plate glass and manufacture method and touch sensor module

Info

Publication number: CN103974919B
Application number: CN201280060645.3A
Authority: CN
Inventors: 下川贡一
Original assignee: Hoya Corp
Current assignee: Hoya Corp
Priority date: 2011-12-13
Filing date: 2012-12-13
Publication date: 2016-07-06
Anticipated expiration: 2032-12-13
Also published as: WO2013089178A1; JP5270810B1; CN103974919A; JPWO2013089178A1

Abstract

The present invention provides with conventional based on compared with the nonpolluting coating face of dip method, it is possible to make the electronic equipment cover-plate glass that durability significantly improves.The electronic equipment cover-plate glass (10) that the present invention relates to possesses the glass substrate (1) with a pair first type surface and the end face adjacent with this pair first type surface, and the glass surface reformation that the side's first type surface (1A) in a pair first type surface is formed by implementing to carry out these process according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma processes and the glass processed surface that formed.It is formed with nonpolluting coating (3) in this glass processed surface and above-mentioned end face (1C).

Description

The manufacture method of electronic equipment cover-plate glass and manufacture method and touch sensor module

Technical field

The present invention relates to the display protection of picture as portable equipments such as mobile phone, portable game machine, PDA (PersonalDigitalAssistant: personal digital assistant), digital camera, video camera or flat board PC (PersonalComputer: personal computer) or stacking is arranged at the guard block of display picture and is used as further protection parts and the manufacture method of the electronic equipment cover-plate glass that uses and manufacture method and touch sensor module.

Background technology

In the past, in order to protect the display picture of the portable equipments such as mobile phone, generally use excellent transparency and light-duty acrylic resin board.In recent years, the portable equipment of touch panel mode accounts for main flow, in order to the function of this touch panel is corresponding, it is desirable to improve the intensity of display picture, substitute conventional acrylic materials gradually and be used mostly the i.e. thin glass material with high intensity.Further, compared with conventional acrylic materials, glass material in mechanical strength (scratch resistance, resistance to impact), surface smoothness, protectiveness (weatherability, soil resistance), attractive in appearance, high-grade etc. also preponderate in some.

The cover-plate glass being made up of such glass material is generally manufactured by following operation.

By machining (cutting) or etching and processing etc., will be shaped to the glass material panelization of lamellar and become the size of regulation, make cover-plate glass glass substrate.

It follows that this glass substrate carried out the Drilling operation of necessity, peripheral shape processing etc. by machining or etching and processing.

It follows that the glass substrate finishing shape processing is carried out chemical intensification treatment.This chemical intensification treatment is to make potassium K+ exchange big with ionic radius for the sodium Na+ in glass, forms the facture of compressive stress layers at glass surface.For cover-plate glass, owing to being applied in impact, pressing, so needing high intensity.

It follows that desired printing etc. is implemented on the surface of the glass substrate having carried out above chemical intensification treatment.

So ready-made cover-plate glass is assembled into portable equipment.When user uses the portable equipment of touch panel mode, it is operated owing to utilizing finger directly to touch its display picture, so easily adhering to the dirts such as fingerprint on the cover-plate glass of protection display picture.Therefore, it is desirable to prevent or suppress to adhere to the dirts such as fingerprint on cover-plate glass, even if or adhering to the also easily wiping of the dirts such as fingerprint.Therefore, generally the surface of cover-plate glass is implemented nonpolluting coating to process.Such as Patent Document 1 discloses such nonpolluting coating to process.

Patent documentation 1: Japanese Unexamined Patent Application Publication 2011-510904 publication

In the above-mentioned content that Patent Document 1 discloses and carried out nonpolluting coating process by vapour deposition method or infusion process.But, when having carried out nonpolluting coating process by vapour deposition method or infusion process, the close property that there is glass substrate and nonpolluting coating material is insufficient because of surface texture of the concave-convex surface of glass substrate etc., it is impossible to obtain the situation of the desired durability of nonpolluting coating.

In addition, as shown in above-mentioned patent documentation 1, nonpolluting coating processes and generally uses vapour deposition method.But, when using vapour deposition method during nonpolluting coating processes, owing to needs process one by one in film forming chamber indoor, so producing rate variance, there is the problem that manufacturing cost also increases in result.

It addition, also disclose that in above-mentioned patent documentation 1 nonpolluting coating based on dip method (infusion process) processes.But, although not disclosed in patent documentation 1, but the research according to the present inventor, specify that the nonpolluting coating face formed by dip method is compared with the nonpolluting coating face formed by vapour deposition method, the problem that there is poor durability.

Summary of the invention

The present invention completes to solve such existing issue, its object is to, it is provided that a kind of with conventional based on compared with the nonpolluting coating face of dip method, it is possible to significantly improve electronic equipment cover-plate glass and the manufacture method thereof of durability.It addition, another object is in that, it is provided that compared with a kind of and based on vapour deposition method nonpolluting coating processes, it is possible to make electronic equipment cover-plate glass and manufacture method thereof that productivity ratio improves.Further, other purposes are in that, it is provided that a kind of manufacture method possessing the touch sensor module adhering to stability-enhanced glass substrate making the durability in nonpolluting coating face improve and to make transparency conducting layer etc..

The present inventor has carried out wholwe-hearted research to solve above-mentioned problem, about the durability in nonpolluting coating face, specify that content below.About the surface texture implementing the glass substrate that nonpolluting coating processes, when the degree of skewness (Rsk: the degree of bias) of the contour curve of glass baseplate surface relatively deviates 0, the deviation of the concavo-convex shape of glass baseplate surface is big, and the nonpolluting coating being coated on glass substrate is low relative to the attachment stability of glass substrate.And, the durability in this attachment stability influence nonpolluting coating face.

Given this, the result that the present inventor studies further repeatedly, confirm by glass substrate is implemented planar fashion Cement Composite Treated by Plasma, the degree of skewness (Rsk: the degree of bias) of the contour curve of glass baseplate surface is close to 0, making glass baseplate surface improve, the deviation of the concavo-convex shape of glass baseplate surface diminishes.Its result, it is thus identified that nonpolluting coating uprises relative to the attachment stability of glass substrate.

But, if also confirming only by planar fashion Cement Composite Treated by Plasma, then nonpolluting coating is insufficient relative to the attachment stability of glass substrate.Then, the result that the present inventor studies further repeatedly, by the surface of the glass substrate implementing planar fashion Cement Composite Treated by Plasma being implemented the Cement Composite Treated by Plasma of concurrent, form the functional group such as OH base, COOH base on the surface of glass substrate.And, it is believed that by the combination of this functional group and nonpolluting coating material, nonpolluting coating improves further relative to the attachment stability of glass substrate.

So, present inventor have discovered that the glass surface reformation process by glass substrate is implemented to carry out in the following order planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, it is possible to make nonpolluting coating improve fully relative to the attachment stability of glass substrate.And, the inventors discovered that, by making nonpolluting coating improve fully relative to the attachment stability of glass substrate, it is possible to increase the durability in nonpolluting coating face, i.e. can solve the problem that above-mentioned problem, complete the present invention.

Even if additionally, it was found that when dip method high for productivity ratio is applied to Coating Processes, it is also possible to improve the nonpolluting coating attachment stability relative to glass substrate fully, it is possible to make the durability in nonpolluting coating face improve.

That is, the present invention has following structure.

(structure 1)

A kind of manufacture method of electronic equipment cover-plate glass, it it is the manufacture method of the electronic equipment cover-plate glass possessing the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, it is characterized in that, including: the glass surface reformation that the side's first type surface in a pair first type surface 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 these process processes, and forms the operation of glass processed surface；Carry out with after the operation forming above-mentioned glass processed surface, above-mentioned glass processed surface is formed the operation of nonpolluting coating.

(structure 2)

The manufacture method of the electronic equipment cover-plate glass according to structure 1, it is characterized in that, in the operation forming above-mentioned nonpolluting coating, by by above-mentioned glass substrate mass-impregnation to nonpolluting coating material, the outer surface at the above-mentioned glass substrate including above-mentioned glass processed surface is integrally formed nonpolluting coating.

(structure 3)

The manufacture method of the electronic equipment cover-plate glass according to structure 1 or 2, it is characterized in that, there is process and nonpolluting coating face reformation process that the above-mentioned nonpolluting coating to the opposing party's first type surface being formed in above-mentioned a pair first type surface implements to make the contact angle of the water on surface to reduce, form the operation of nonpolluting coating reformation layer.

(structure 4)

The manufacture method of the electronic equipment cover-plate glass according to any one in structure 1 to 3, it is characterised in that carry out before being additionally included in the operation forming above-mentioned glass processed surface, implements the operation of printing to above-mentioned glass substrate.

(structure 5)

The manufacture method of the electronic equipment cover-plate glass according to structure 4; it is characterized in that; before above-mentioned glass baseplate surface is implemented above-mentioned printing; arrange till being implemented above-mentioned printing for protecting the rotten printing zone protective layer of the printing zone in above-mentioned glass baseplate surface, reform to make the contact angle of the water on the surface of above-mentioned printing zone protective layer reduce when stating printing on the implementation or remove.

(structure 6)

The manufacture method of the electronic equipment cover-plate glass according to structure 4 or 5; it is characterized in that; in advance above-mentioned glass substrate is arranged contact protection layer, when this contact protection layer is for stating printing on the implementation, protect printer or fixture for the contact of above-mentioned glass substrate.

(structure 7)

A kind of electronic equipment cover-plate glass, it it is the electronic equipment cover-plate glass possessing the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, it is characterized in that, the Rsk of the side's first type surface in above-mentioned a pair first type surface is 0 ± 0.3, it is formed with nonpolluting coating at one side first type surface, the steel wool of #0000 is being pressed 1kg/cm with face²For the surface of above-mentioned nonpolluting coating slided 2000 times in the case of under, the contact angle of the water in the surface of above-mentioned nonpolluting coating is more than 105 degree.

(structure 8)

Electronic equipment cover-plate glass according to structure 7, it is characterised in that above-mentioned nonpolluting coating has the adhering zone on the surface being attached to above-mentioned glass substrate and is configured in the flow region on surface of this adhering zone.

(structure 9)

Electronic equipment cover-plate glass according to structure 8, it is characterised in that the thickness of above-mentioned adhering zone is 40%～70% relative to the ratio of the thickness of above-mentioned nonpolluting coating.

(structure 10)

Electronic equipment cover-plate glass according to any one in structure 7 to 9, it is characterized in that, the opposing party's first type surface in above-mentioned a pair first type surface is formed with the nonpolluting coating reformation layer implementing to process for the nonpolluting coating face reformation making the contact angle of the water on surface reduce and formed to above-mentioned nonpolluting coating, be formed at one side first type surface above-mentioned nonpolluting coating with the contact angle of the water in the surface of above-mentioned glass substrate opposition side in the scope of 110 degree～120 degree, the contact angle with the water in the surface of above-mentioned glass substrate opposition side of the above-mentioned nonpolluting coating reformation layer being formed at above-mentioned the opposing party's first type surface is less than 20 degree.

(structure 11)

Electronic equipment cover-plate glass according to structure 10, it is characterized in that, be formed at one side first type surface above-mentioned nonpolluting coating with the contact angle of the hexadecane in the surface of above-mentioned glass substrate opposition side in the scope of 60 degree～70 degree, be formed at above-mentioned the opposing party's first type surface above-mentioned nonpolluting coating reformation layer with the contact angle of the hexadecane in the surface of above-mentioned glass substrate opposition side in the scope of 10 degree～20 degree.

(structure 12)

Electronic equipment cover-plate glass according to any one in structure 7 to 11, it is characterised in that be formed at one side first type surface above-mentioned nonpolluting coating with the coefficient of kinetic friction in the surface of above-mentioned glass substrate opposition side in the scope of 0.1～0.3.

(structure 13)

Electronic equipment cover-plate glass according to any one in structure 7 to 12, it is characterised in that above-mentioned nonpolluting coating is made up of the fluorine resin material containing the perfluorinated polyether compound having hydroxyl at end group.

(structure 14)

Electronic equipment cover-plate glass according to any one in structure 7 to 13, it is characterised in that above-mentioned nonpolluting coating is made up of the fluorine resin material that weight average molecular weight is 2000～5000.

(structure 15)

Electronic equipment cover-plate glass according to any one in structure 7 to 14, it is characterised in that above-mentioned glass substrate is constituted by having carried out chemical enhanced aluminosilicate glass.

(structure 16)

A kind of manufacture method of touch sensor module, it is possess the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, and for detecting the manufacture method of the touch sensor module of the operation of user, it is characterized in that, including: implement the side's first type surface in a pair first type surface in above-mentioned glass substrate to carry out the glass surface reformation process of these process according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma and form glass processed surface, for the above-mentioned glass substrate of nonpolluting coating has been integrally formed at the outer surface of the above-mentioned glass substrate including above-mentioned glass processed surface, the opposing party's first type surface in above-mentioned a pair first type surface forms the operation of the nonpolluting coating reformation layer above-mentioned nonpolluting coating being implemented to make the nonpolluting coating face reformation that the contact angle of the water on surface reduces process and formed；The operation of at least any one party of insulating barrier and transparency conducting layer is formed with the outer surface at above-mentioned nonpolluting coating reformation layer.

In accordance with the invention it is possible to provide with conventional based on compared with the nonpolluting coating face of dip method, electronic equipment cover-plate glass and manufacture method thereof that durability significantly improves can be made.

Further, in accordance with the invention it is possible to compared with providing and processing with the nonpolluting coating based on vapour deposition method, electronic equipment cover-plate glass and manufacture method thereof that productivity ratio improves can be made.

Further, in accordance with the invention it is possible to be provided with making the durability in nonpolluting coating face to improve and the manufacture method of touch sensor module of the glass substrate that makes the attachment stability of transparency conducting layer etc. improve.

Accompanying drawing explanation

Fig. 1 indicates that the diagrammatic cross-sectional view of an embodiment of the electronic equipment cover-plate glass that the present invention relates to.

Fig. 2 is the flow chart of the manufacture method of the electronic equipment cover-plate glass that the present invention relates to.

Fig. 3 is the diagrammatic cross-sectional view of the manufacture method representing the electronic equipment cover-plate glass that the present invention relates to by process sequence.

Fig. 4 indicates that the top view of an example of the shape of cover-plate glass glass substrate.

Detailed description of the invention

Hereinafter, describe embodiments of the present invention in detail, but the main portable equipment cover-plate glass to an embodiment of electronic equipment cover-plate glass illustrates here.

Fig. 1 indicates that an embodiment of the electronic equipment cover-plate glass that the present invention relates to and the diagrammatic cross-sectional view of an embodiment of portable equipment cover-plate glass.

An embodiment of the invention according to Fig. 1, the portable equipment cover-plate glass 10 that the present invention relates to possesses flat glass substrate 1.Glass substrate 1 has first type surface 1A, 1B of positive and negative a pair and the end face 1C adjacent with this pair first type surface.A side first type surface 1A in above-mentioned a pair first type surface is formed with the glass processed surface being implemented glass surface reformation to process and to be formed.And, it is formed with nonpolluting coating 3 in above-mentioned glass processed surface and above-mentioned end face 1C.

One of inventive feature structure is to be formed with glass processed surface at one side first type surface 1A, this glass processed surface is formed by implementing glass surface reformation to process, and it is by the process carrying out these process with the order of lower plane (Planar) mode Cement Composite Treated by Plasma and following current (downstream) mode plasma that this glass surface reformation processes.

In the portable equipment cover-plate glass 10 that the present invention relates to, process in the glass surface reformation above-mentioned by enforcement and be formed on the one side first type surface 1A of glass processed surface and be formed with above-mentioned nonpolluting coating 3.According to this structure, for instance with conventional, glass substrate is not implemented especially surface treatment etc. and compared with the nonpolluting coating that formed by dip method, nonpolluting coating material improves relative to the attachment stability of glass substrate, and the durability in nonpolluting coating face significantly improves.As also illustrated later, as nonpolluting coating material, it is preferred to use fluorine resin material.But, when utilizing dip method that this fluorine resin material is coated to glass substrate, particularly poor relative to the attachment stability of glass substrate.Therefore, such fluorine resin material is being used as nonpolluting coating material, and when utilizing dip method to be coated to glass substrate, also particularly preferably can improve the attachment stability relative to glass substrate to significantly improve the present invention of the durability in nonpolluting coating face.

Wherein, the detailed content of the glass surface reformation process carrying out these process according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma will be described in more detail below.

Here, the material of above-mentioned nonpolluting coating 3 is illustrated.When user uses the portable equipment of touch panel mode of operation, owing to using its display picture of the direct touch operation of finger, so easily at dirts such as display picture attachment fingerprints.Therefore, it is desirable to prevent or suppress to adhere to the dirts such as fingerprint on display picture, even if or adhering to the also easily wiping of the dirts such as fingerprint.For this, as the material of above-mentioned nonpolluting coating 3, it is preferable that select namely to use finger directly to touch (pressing) and also can prevent or suppress the attachment dirt such as fingerprint, though or the material with soil resistance of the dirt also easy wiping such as attachment fingerprint.It addition, excellent transparency is also critically important.In the present invention, as having good soil resistance and the also excellent material of the transparency, for instance preferably enumerate the material that fluorine resin material (such as having the perfluorinated polyether compound etc. of hydroxyl at end group) etc. makes surface energy reduce.

It addition, the opposing party first type surface 1B in above-mentioned a pair first type surface of glass substrate 1 is formed with the nonpolluting coating reformation layer 3a above-mentioned nonpolluting coating 3 implementing the process making the contact angle of the relative water in surface reduce and nonpolluting coating face reformation process and formed.

A side first type surface 1A and above-mentioned end face 1C of define above-mentioned glass processed surface are formed nonpolluting coating 3, but such as when making glass substrate mass-impregnation form nonpolluting coating 3 to nonpolluting coating material by dip method, also form nonpolluting coating at above-mentioned the opposing party first type surface 1B.When the portable equipment of Fig. 1 is with cover-plate glass 10, generally will improve the outside towards portable equipment, the above-mentioned first type surface 1A side of the glass substrate 1 of the durability in nonpolluting coating face, the opposing party first type surface 1B side of glass substrate 1 will be installed towards the inner side of portable equipment.

Here, it is also possible to form transparency conducting layer in the first type surface 1B side (as required via insulating barrier) of glass substrate 1, glass substrate 1 it is configured to generate the touch sensor module operating corresponding signal with user with transparency conducting layer.In this situation, if such as defining, in the above-mentioned first type surface 1B side of glass substrate 1, the nonpolluting coating 3 being made up of fluorine resin material, then at the outer surface of this nonpolluting coating 3, above-mentioned insulating barrier, transparency conducting layer attachment poor stability.Accordingly, it is difficult to the outer surface at nonpolluting coating 3 forms above-mentioned insulating barrier, transparency conducting layer, it is impossible to constitute touch sensor module.

In the present invention, formed the nonpolluting coating reformation layer 3a above-mentioned nonpolluting coating 3 being implemented the process making the contact angle of the relative water in surface reduce and nonpolluting coating face reformation process and formed by the above-mentioned the opposing party first type surface 1B in glass substrate 1, can make to be formed at the attachment stability raising of the insulating barrier of its outer surface, transparency conducting layer.Process as the reformation of such nonpolluting coating face, for instance the methods such as helium (He) the plasma exposure process based on planar fashion or ultraviolet radiation process can be enumerated.

In the portable equipment cover-plate glass 10 that the present invention relates to, be preferably formed in a side first type surface 1A of above-mentioned glass substrate 1 above-mentioned nonpolluting coating 3 surface (surface with glass substrate 1 opposition side) in the contact angle of water in the scope of 110 degree～120 degree, oil, such as hexadecane contact angle in the scope of 60 degree～70 degree.By the contact angle for water or oil in above-mentioned scope, can play and namely use finger directly to touch (pressing), be also prevented from or suppress the attachment dirt such as fingerprint, though or the good soil resistance of the dirt also easy wiping of attachment fingerprint etc..Wherein, above-mentioned contact angle is the initial contact angle after nonpolluting coating is formed, but in the present invention, as mentioned above, owing to the durability of the nonpolluting coating 3 of the first type surface 1A being formed at glass substrate 1 can be improved, even if so such as carrying out the endurancing of the slip based on steel wool (steelwool) illustrated in embodiment described later, the reduction of contact angle is also little, it is possible to maintain good soil resistance.

Additionally, at the portable equipment of the present invention with in cover-plate glass 10, be preferably formed in the opposing party first type surface 1B of above-mentioned glass substrate 1 above-mentioned nonpolluting coating reformation layer 3a surface (surface with glass substrate 1 opposition side) in the contact angle of water below 20 degree, oil, such as hexadecane contact angle in the scope of 10 degree～20 degree.By the contact angle for water or oil in above-mentioned scope, it is possible to increase the attachment stability when the outer surface of nonpolluting coating reformation layer 3a forms above-mentioned insulating barrier, transparency conducting layer.

Wherein, in the present invention, above-mentioned contact angle is the value determined under the atmosphere of 22 ± 2 DEG C.

Additionally, at the portable equipment of the present invention with in cover-plate glass 10, be preferably formed in a side first type surface 1A of above-mentioned glass substrate 1 above-mentioned nonpolluting coating 3 surface (surface with glass substrate 1 opposition side) in the coefficient of kinetic friction in the scope of 0.1～0.3, or confficient of static friction is in the scope of 0.2～0.4.Owing to the coefficient of kinetic friction on the surface by nonpolluting coating 3 or confficient of static friction are in above-mentioned scope, the sliding that can make nonpolluting coating face is excellent, sense of touch when touching with finger is good, so in possessing the portable equipment of cover-plate glass of the present invention, by user carry out such as that the operability of touch panel is good.

In the present invention, it is preferred to the glass constituting 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 instance can use containing SiO₂It is 58～75 weight %, Al₂O₃It is 4～20 weight %, Li₂O is 0～10 weight %, Na₂O is 4～20 weight % aluminosilicate glass as main component.

From the viewpoint of the market demand of lightening, the lightness of the nearest portable equipment of reply, it is preferable that the thickness of above-mentioned glass substrate 1 is such as in the scope of about 0.3mm～1.5mm, it is preferred that in the scope of about 0.5mm～0.7mm.

It follows that the manufacture method of the portable equipment cover-plate glass of an embodiment of the electronic equipment cover-plate glass that the present invention relates to as described above is illustrated.

Fig. 2 is the flow chart of the manufacture method of the portable equipment cover-plate glass that the present invention relates to, and Fig. 3 is the diagrammatic cross-sectional view of the manufacture method representing the portable equipment cover-plate glass that the present invention relates to by process sequence.

The portable equipment cover-plate glass that the present invention relates to is to be manufactured by the operation of following description.

[making glass substrate (step S0)]

Generally, by machining etc., large-sized glass plate is cut (panelization) and become the size of regulation, make the glass substrate 1 of cover-plate glass.

Such as, stacking (lamination) multiple (such as about tens) is such as the glass plate of about 0.5mm by the thickness that drop-down (downdraw) method, floating method etc. manufacture, and uses glass cutter to cut into the small pieces of prescribed level.So, if the glass plate of a cutting processing laminated arrangement, then owing to also being able to the small pieces of a shape machined layer overlapping state in ensuing shape manufacturing procedure, thus favourable on producing.Consider that the size to the cover-plate glass of product determines the size of small pieces plus the size of the required difference of peripheral shape processing.

Here, outer shape is processed, it is also possible to the cutting processing of substitutable layer overlapping state and one by one process foliated glass material.It addition, in outer shape is processed, as the means beyond machining, it is possible to use etching method.

Wherein, the glass composition of above-mentioned glass substrate 1 is as mentioned above.It addition, as it has been described above, from the viewpoint of the market demand of lightening, the lightness of the nearest portable equipment of reply, it is preferable that the thickness of glass substrate 1 is such as in the scope of about 0.3mm～1.5mm, it is preferred that in the scope of about 0.5mm～0.7mm.

It follows that carry out the Drilling operation of necessity, peripheral shape processing etc. by the glass substrate 1 of machining or the etching and processing small pieces to being processed to this prescribed level.

Fig. 4 indicates that the top view of an example of the shape of glass substrate.In the example shown in Figure 4, glass substrate 1 is formed with peripheral end face 1a, otch 1b, earhole 1c and button operation hole 1d.Sand-blast etc. can also be passed through such Drilling operation and peripheral shape are processed carry out machining, or also be able to be uniformly processed by etching and processing these Drilling operations and peripheral shape processing.Especially, in complicated shape processing, etching and processing is advantageous for.Alternatively, it is also possible to adopt machining and etching and processing according to machining shape simultaneously.And, it is also possible to by suitably setting dissolving pattern during etching and processing, by foliated glass raw material panelization, with in this panelization operation together, make small pieces become the shape of the glass substrate 1 shown in Fig. 4.

It follows that the glass substrate 1 finishing shape processing is carried out chemical intensification treatment.

Method as chemical intensification treatment, for instance preferably with the temperature province of the temperature less than glass softening point, for instance carry out the low form ion exchange etc. of ion exchange with more than 300 degree 500 degree of temperature below Celsius.Chemical intensification treatment is by making the chemical enhanced salt melted contact with glass substrate, alkali metal relatively small for atomic radius in alkali metal relatively large for atomic radius in chemical enhanced salt and glass substrate is carried out ion exchange, the alkali metal making this ionic radius big is impregnated into the top layer of glass substrate, produces the process of compression stress on the surface of glass substrate.As chemical enhanced salt, it may be preferable to use the alkali nitrates such as potassium nitrate, sodium nitrate.The intensity of the glass substrate owing to carrying out chemical intensification treatment improves, excellent impact resistance, so the cover-plate glass being applicable to be applied in impact, press and needing the portable equipment of high intensity to use.

It follows that printing (printing process) is implemented on the surface of the glass substrate having carried out above chemical intensification treatment.Such as, as printed patterns, if enumerating the example of the cover-plate glass of mobile phone, the pressing pattern etc. then needing the profile around the icon of Business Name, the mark of name of product, touch panel etc., various sensor window, picture, the back side is at least double-deck, and many situations are such as the polychrome multi-ply construction of 8 Rotating fields.As an example of the mode of printing of cover-plate glass, it it is silk screen printing.

Additionally, in order to improve the press quality in printing process, specifically in order to suppress because of with contacting of air etc. and rotten (variable color) of the printed position of glass substrate that cause, it is also possible to implement nonpolluting coating in advance and be used as printing zone protective layer.Additionally; in this printing process; owing to being repeatedly performed the fixture that glass substrate is filled to printer according to print pass; then the operation taken out from fixture; so nonpolluting coating can also be implemented in advance, it is used as the contact protection layer causing glass substrate 1 to scratch for preventing the back side of glass substrate 1, end face and fixture multiple-contact.But, in order in press not interfere with, it is preferable that remove the nonpolluting coating of printing surface side when printing process, or carry out reformation process to make the contact angle of the water on the surface of this nonpolluting coating reduce.

[glass surface reformation processes (step S1)]

It follows that the glass substrate 1 (with reference to Fig. 3 (a)) made as described above is carried out glass surface reformation process.Printing surface side generally, due to the surface being formed at glass substrate 1 is installed by the inner side towards portable equipment, thus to this printing surface opposition side, the glass baseplate surface that namely exposes towards the outside of portable equipment carry out glass surface reformation process.Fig. 2 and Fig. 3 eliminates the record of printing layer, but is such as formed with printing layer in the opposing party first type surface 1B side of glass substrate 1, be formed with glass processed surface 2 (with reference to Fig. 3 (b)) at a side first type surface 1A.This glass processed surface 2 is formed by implementing to carry out the glass surface reformation process of these process according to the order of planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma.

Above-mentioned planar fashion Cement Composite Treated by Plasma is to have 2 sparking electrodes with a certain interval, installs processed substrate, and produce the mode that plasma carries out processing in this interval.In this situation, produce the gas used as plasma, for instance use He, Ar or N₂Deng.Applying plasma between two electrodes and produce required voltage, the ion in plasma space ionization is accelerated in this space and is clashed into processed substrate surface.Thus, glass baseplate surface is restructured as the degree of skewness (Rsk: the degree of bias) of the contour curve of glass baseplate surface close to 0, and the deviation of the concaveconvex shape of glass baseplate surface diminishes.Here, it is preferred that Rsk is in the scope of 0 ± 0.3, it is preferred that in the scope of 0 ± 0.15.

Additionally, concurrent Cement Composite Treated by Plasma is to the voltage applied between two electrodes arranged opposite across the feed path to processed substrate supply gas needed for plasma produces, and plasmarized gas irradiates the mode that supply carries out to processed substrate processing.By irradiating energized gas to processed substrate surface, such as form the functional group such as hydroxyl, carboxyl at substrate surface, carry out the reformation of substrate surface.It addition, also be able to the removal of the organic pollution for substrate surface.As the gas used in this situation, for instance use N₂With O₂Or the mixing gas etc. of air.

In this invention it is important that process as glass surface reformation, process by carrying out these according to the order of above-mentioned planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma, form above-mentioned glass processed surface 2.Process by carrying out this glass surface reformation, such as, compared with the nonpolluting coating with conventional especially glass substrate not being implemented surface treatment etc. and formed by dip method, nonpolluting coating material improves relative to the attachment stability of glass substrate, it is possible to make the durability in nonpolluting coating face significantly improve.As the nonpolluting coating material being coated on glass surface, it is preferred to use fluorine resin material.But, when this fluorine resin material being coated to glass substrate by dip method, particularly poor relative to the attachment stability of glass substrate.Therefore, when using such fluorine resin material as nonpolluting coating material and being coated to glass substrate by dip method, it is also possible to improve the attachment stability relative to glass substrate, make the durability in nonpolluting coating face significantly improve.

In the present invention, when above-mentioned planar fashion Cement Composite Treated by Plasma, it is preferable that the reacting gas used is He, Ar or N₂, more preferably He.Although it addition, more or less different according to the kind of the reacting gas used, but electric power scope at 200～500W being preferably used, more preferably 300～400W.Additionally, it is preferred that process in the scope that the process time is 10～250 seconds, more preferably 30～90 seconds.On the other hand, when above-mentioned concurrent Cement Composite Treated by Plasma, it is preferable that the reacting gas used is non-active gas and air or O₂Mixing gas, more preferably N₂Mixing gas with air.Although it addition, more or less different according to the kind of the reacting gas used, but electric power scope at 400～1200W is preferably used, it is preferred that in the scope of 600～1000W.It addition, as the time of process, it is preferable that the scope at 5～60 seconds processes, it is preferred that the scope at 10～15 seconds processes.

In the present invention, process as glass surface reformation, carry out above-mentioned planar fashion Cement Composite Treated by Plasma and concurrent Cement Composite Treated by Plasma the two processes, but as the order that these two process, as mentioned above, first above-mentioned planar fashion Cement Composite Treated by Plasma is carried out, followed by 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, the action effect of the present invention can be played, it is advantageous to.

[forming nonpolluting coating (step S2)]

It follows that as described above, a side first type surface 1A is being carried out glass surface reformation process and is defining formation nonpolluting coating 3 (with reference to Fig. 3 (c)) on the glass substrate 1 of glass processed surface.

In the present invention, it is preferred to be such as coated with the above-mentioned nonpolluting coating 3 of formation by dip method.Dip method is by making above-mentioned glass substrate 1 mass-impregnation in coating liquid, and be dried after being drawn off and carry out, wherein, above-mentioned coating liquid be in suitable solvent as nonpolluting coating material contain such as above-mentioned fluorine resin as the coating liquid of main component.According to this dip method, even if not using vacuum film formation apparatus, it is also possible to form the nonpolluting coating 3 of homogeneous film thickness on whole of above-mentioned glass substrate 1.

The coating thickness of above-mentioned nonpolluting coating 3 is not particularly limited, but preferably such as in the scope of 0.3nm～30nm.If thickness is less than 0.3nm, then durability is not enough, there is the probability that can not give full play to anti-pollution function.On the other hand, if thickness is more than 30nm, then owing to the transparency reduces, so not meeting the requirement of portable equipment.

As mentioned above, when being mounted to the display floater of portable equipment, the first type surface 1A of the glass substrate 1 owing to exposing in the face side of portable equipment is formed with the processed surface processed based on glass surface reformation of the present invention, the attachment stability utilizing the nonpolluting coating 3 that above-mentioned dip method formed improves, so with conventional based on compared with the nonpolluting coating face of dip method, it is possible to make durability significantly improve.

In addition, due to when cover-plate glass is applied with external force, the impact of glass baseplate surface is relaxed because of nonpolluting coating, it is not easy to produce because reducing the crack caused as the intensity of the glass of fragile material in glass substrate, it is possible to make the mechanical strength of cover-plate glass improve.That is, by carrying out formation nonpolluting coating on chemical enhanced glass substrate, it is possible to make to improve further as the mechanical strength of cover-plate glass.

Above-mentioned nonpolluting coating has the adhering zone on the surface being attached to glass substrate and is configured in the flow region on surface of adhering zone.Adhering zone is the region that the molecule of coating material is fixedly combined with functional groups such as the hydroxyl on the surface being in glass substrate, carboxyls.Flow region is coating material molecular entanglement each other and maintains the region of state.Adhering zone is identical with the composition of flow region, and that observes on microphotograph etc. does not have difference in appearance.But, flow region is readily soluble in solvent, and adhering zone is not easy to dissolve in a solvent.Therefore, it is possible to be identified as the region of residual, the region dissolved when flow region is to impregnated in solvent when adhering zone is to impregnated in solvent (such as impregnating one minute in HFE).The thickness of adhering zone and flow region such as can be measured by the ellipsometer MARY-102 of FiveLab company.

Here, it is preferred that the thickness of adhering zone is 40%～70% relative to the ratio of the thickness of above-mentioned nonpolluting coating.If this is because the ratio of the thickness of adhering zone is less than 40%, then can not play durability.If it addition, the ratio of the thickness of adhering zone is bigger than 70%, then sliding can not be played.Further, if 40%～70%, then can play durability and sliding better.It addition, in order to the ratio of the thickness of adhering zone be set to 40%～70% and play durability and sliding better, it is preferred that using weight average molecular weight is that the fluorine resin material of 2000～5000 is as coating material.

In order to adjust the thickness of this adhering zone, specifically can carry out baking process, ultraviolet radiation process, based on decompression vacuum adjustment process etc..

In baking processes, by being heated with the temperature more than evaporating temperature of solvent in constant temperature oven, it is possible to make nonpolluting coating dry.Preferred heating-up temperature is 120 DEG C～180 DEG C.Preferred heat time heating time is 30 minutes～1 hour.Here, heating-up temperature is more high, and additionally heat time heating time is more long, then the thickness of flow region can be made more to reduce.Accompany with this, it is possible to promote to constitute the combination on the surface of the molecule of the coating material of adhering zone and glass substrate by heat, make adhering zone expand.

It addition, in ultraviolet radiation processes, as ultraviolet, it will be preferred that its wavelength is from the ultraviolet of 150 to 400 nanometers.It addition, as ultraviolet light source, for instance low pressure mercury lamp, high-pressure mercury-vapor lamp or extra-high-pressure mercury vapour lamp etc. can be used.It addition, the illumination of ultraviolet light source can be set to 300 [cmW/cm²] left and right.Ultraviolet illumination is more high, and additionally irradiation time is more long, then the thickness of flow region can be made more to reduce.It addition, in ultraviolet radiation processes, it is also possible to adjust ambient temperature, implement heat treated simultaneously.Thereby, it is possible to make adhering zone expand.

It addition, in vacuum adjustment processes, by adjusting vacuum in the way of the air pressure of the vapour pressure to become not enough solvent, it is possible to make solvent evaporate.Vacuum more high (making air pressure reduce), additionally processes the time more long, then the thickness of flow region can be made more to reduce.It addition, in vacuum adjustment processes, it is also possible to adjust ambient temperature, implement heat treated simultaneously.Thereby, it is possible to make adhering zone expand.

[reformation of nonpolluting coating face processes (step S3)]

It follows that the nonpolluting coating 3 being formed at the opposing party first type surface 1B in above-mentioned glass substrate 1 to be implemented the process and the nonpolluting coating face reformation process that make the contact angle of the water on surface reduce, form nonpolluting coating reformation layer 3a (with reference to Fig. 3 (d)).

Nonpolluting coating 3 is formed at the side first type surface 1A and above-mentioned end face 1C that define above-mentioned glass processed surface, but such as when being made glass substrate mass-impregnation to nonpolluting coating material forms nonpolluting coating 3 by dip method, also form nonpolluting coating at above-mentioned the opposing party first type surface 1B.Here, sometimes such as form at least one of which of insulating barrier, transparency conducting layer in the first type surface 1B side of the glass substrate 1 installed towards the inner side of portable equipment, become the touch sensor module of the operation of user for detecting portable equipment.In this case, the present invention forms nonpolluting coating reformation layer 3a by the process also nonpolluting coating face reformation process implementing the above-mentioned nonpolluting coating 3 being formed at above-mentioned the opposing party first type surface 1B in glass substrate 1 to make the contact angle of the water on surface reduce, and thus enables that the attachment stability raising being formed at the insulating barrier of its outer surface, transparency conducting layer.It addition, by forming above-mentioned nonpolluting coating reformation layer 3a, compared with the situation directly forming insulating barrier, transparency conducting layer of the above-mentioned first type surface 1B at glass substrate 1, additionally it is possible to obtain the stability-enhanced effect of attachment of these layers.

Process as the reformation of such nonpolluting coating face, it is preferable that enumerate such as based on methods such as helium (He) the plasma exposure process of planar fashion or ultraviolet radiation process.About conditions such as irradiation energy when carrying out ultraviolet radiation, irradiation doses (irradiation time), further with regards to conditions such as the energy of plasma carried out when plasma exposure processes, process times, it is possible to properly select preferred condition and implement.The thickness of the depth direction of the nonpolluting coating reformation layer 3a being formed at nonpolluting coating 3 according to these ultraviolet radiation conditions or plasma exposure treatment conditions, can be adjusted.

Wherein, above-mentioned transparency conducting layer is formed along the outer surface of the nonpolluting coating reformation layer 3a of the first type surface 1B being formed at glass substrate 1 with the thickness of regulation." thickness of regulation " for this transparency conducting layer, is such as below 100nm when by sputtering film-forming, and when by print process film forming, the transparent resin including becoming binding agent is below 1000nm.

Specifically, by using sputtering method etc. at the outer surface film forming transparency conducting layer of above-mentioned nonpolluting coating reformation layer 3a, such as film forming ITO (IndiumTinOxide: indium tin oxide) film, and use optical lithography or based on the basic wave of YAG (YttriumAluminumGarnet: yttrium-aluminium-garnet), CO₂Transparency conducting layer is processed into desired pattern form and is formed by the laser patterning techniques of laser etc..It addition, connecting portion (metal line) is by using sputtering method etc. to form metal film at the metal conductive materials of surface filming of the printing zone of glass substrate, and optical lithography etc. is used metal film to be processed into desired pattern form and is formed.

It addition, respectively as required, between surface and the transparency conducting layer of above-mentioned nonpolluting coating reformation layer 3a, formation insulating barrier between surface and the connecting portion (metal line) of above-mentioned nonpolluting coating reformation layer 3a.Preferably this insulating barrier uses the insulating properties material with the transparency, for instance use SiO₂Formed etc. inorganic material.Additionally, it is preferred that such as use sputtering method etc., the thickness of insulating barrier is formed asLeft and right.

Manufacture the portable equipment cover-plate glass 10 of present embodiment as described above, and be mounted to portable equipment.

It addition, the present invention also provides for the manufacture method of touch sensor module.Namely, it is possess the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, and for detecting the manufacture method of the touch sensor module of the operation of user, it is characterized in that, including: the side's first type surface in a pair first type surface of above-mentioned glass substrate forms the glass processed surface formed by implementing glass surface reformation process, for the above-mentioned glass substrate defining nonpolluting coating in above-mentioned glass processed surface, the opposing party's first type surface in above-mentioned a pair first type surface forms the operation of the nonpolluting coating reformation layer above-mentioned nonpolluting coating being implemented to make the nonpolluting coating face reformation that the contact angle of the water on surface reduces process and formed；The operation of at least any one party of insulating barrier and transparency conducting layer is formed with the outer surface at above-mentioned nonpolluting coating reformation layer.

The manufacture method of the touch sensor module according to the present invention, it is possible to obtain possessing and make the durability in nonpolluting coating face improve, and make the touch sensor module adhering to stability-enhanced glass substrate of transparency conducting layer etc..

In addition, in the above embodiment, the situation being carried out nonpolluting coating process by infusion process is illustrated, but in the present invention, nonpolluting coating processing method is not limited to infusion process, for instance also be able to application spin-coating method, nebulization, vapour deposition method, spread coating etc..

Embodiment

Being exemplified below embodiment, more specifically the present invention will be described.Here, the embodiment of the portable equipment cover-plate glass of an embodiment of the electronic equipment cover-plate glass that the present invention relates to is illustrated.Additionally, the invention is not limited in below example.

(embodiment 1)

The portable equipment cover-plate glass of the present embodiment has been manufactured via following (1) glass substrate manufacturing process, (2) glass surface reformation treatment process, (3) nonpolluting coating formation process, (4) nonpolluting coating face reformation treatment process.

(1) glass substrate manufacturing process

First, cut out the size of regulation from the glass plate that the thickness being made up of aluminosilicate glass is 0.5mm produced by glass tube down-drawing, floating method, produce the glass substrate of cover-plate glass.As this aluminosilicate glass, employ containing SiO₂: 58～75 weight %, Al₂O₃: 4～20 weight %, Li₂O:3～10 weight %, Na₂The chemical enhanced glass of O:4～13 weight %.

It follows that use emery wheel (little opening footpath processing with) etc. that above-mentioned glass substrate is holed, and the shape such as implementing above-mentioned peripheral end face as shown in Figure 4 is processed.

It follows that the glass substrate finishing the processing of above-mentioned shape is implemented chemical enhanced.In chemical enhanced, the chemical enhanced liquid that preparation potassium nitrate and sodium nitrate are mixed to get, this chemical reinforcing solution is heated to 380 DEG C, cleaning, dry complete glass substrate after above-mentioned shape being processed impregnate about four hours, have carried out chemical intensification treatment.It is impregnated into finishing chemical enhanced glass substrate successively in each rinse bath of sulphuric acid, neutral lotion, pure water, pure water, IPA, IPA (steam drying), carries out ultrasonic waves for cleaning, then dry.

For the glass substrate having carried out above-mentioned chemical intensification treatment, implement printing process at its opposing party's first type surface.That is, the printing layer (layer of ink) of regulation is defined by silk screen printing.

So, completed glass substrate.

(2) glass surface reformation treatment process

The first type surface with printing surface opposition side of the above-mentioned glass substrate completed has been carried out glass surface reformation process.

Specifically, it is first according to following condition and carries out the Cement Composite Treated by Plasma based on planar fashion.

Reacting gas: He

Use electric power: 300W

The process time: 180 seconds

It follows that carried out the Cement Composite Treated by Plasma based on concurrent according to following condition.

Reacting gas: N₂(flow 80 liters/min)+air (flow 80 liters/min)

Use electric power: 800W

The process time: 13 seconds

(3) nonpolluting coating formation process

Use the coating liquid (liquid temperature 25 DEG C) that by solvent, fluorine resin (chemical industrial company of SHIN-ETSU HANTOTAI system (trade name) KY100 series) is adjusted to debita spissitudo, cover, in the whole topcoating finishing the glass substrate that above-mentioned glass surface reformation processes, the nonpolluting coating being made up of above-mentioned fluorine resin by dip method, carry out hot air drying with 100 DEG C.The coating thickness of nonpolluting coating is 10nm.The thickness of this nonpolluting coating is based on the ellipsometer MARY-102 of FiveLab company and measures the measured value obtained.

The contact angle for water (initial contact angle) carried out in the nonpolluting coating surface that formed of glass substrate first type surface that above-mentioned glass surface reformation processes is 115 degree.Wherein, contact angle is according to JISR3257, and uses the contact angle instrument DM-501 of consonance interface science company to measure.

(4) nonpolluting coating face reformation treatment process

The nonpolluting coating of the printing surface side being formed at above-mentioned glass substrate has been carried out the Cement Composite Treated by Plasma based on planar fashion according to following condition.

Reacting gas: He

Apply voltage: 300W

The process time: 5 seconds

The contact angle for water in nonpolluting coating surface before above-mentioned Cement Composite Treated by Plasma is 115 degree, but the contact angle after above-mentioned Cement Composite Treated by Plasma drops to less than 20 degree.

So complete the cover-plate glass of the present embodiment.

For the cover-plate glass obtained, determining the confficient of static friction on nonpolluting coating surface and the coefficient of kinetic friction respectively as a result, confficient of static friction is 0.35, the coefficient of kinetic friction is 0.21.This condition determination employs load 50gf, sliding speed 50mm/ second, sliding distance 50mm, front-end surface material are polyethylene and front end geometry is the sliding part of curved shape.

Further, for the cover-plate glass obtained, the surface roughness Ra of first type surface, Rq, degree of bias Rsk and point degree Rku are determined respectively.Wherein, these parameters are the parameters specified by JISB0601:2001.Such as, these parameters are by the scan-type detector microscope (atomic force microscope of Veeco company of Japan；AFM) nanoscope is measured, and for surface roughness Ra, can be calculated by the method specified by JISR1683:2007.In the present embodiment, in the 1 μm square mensuration region of 1 μ m, it is possible to use and carried out value when measuring with the resolution of 512 × 128 pixels.This measurement result is represented in Table 1.Wherein, in Table 1, planar fashion is denoted as P mode, concurrent is denoted as D mode.

[table 1]

	P mode has the non-processor time [second]	D mode with or without	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

It addition, to the nonpolluting coating surface of the cover-plate glass obtained, namely to being formed at the nonpolluting coating surface having carried out the glass substrate first type surface that above-mentioned glass surface reformation processes, make steel wool (#0000) with load 1kg (face pressure 1kg/cm²) slide, checked the variation of the contact angle for water in nonpolluting coating surface.This measurement result is represented in table 2.In the cover-plate glass of the present embodiment, it is thus identified that the contact angle after sliding for 2000 times guarantees more than 110 degree, and the reduction started from initial contact angle (115 degree) is less, it is possible to make the durability in nonpolluting coating face significantly improve.

[table 2]

(embodiment 2)

Except, in (2) glass surface reformation treatment process of embodiment 1, being set to by the plasma treatment time of planar fashion beyond 60 seconds, manufacture cover-plate glass identically with embodiment 1.

The nonpolluting coating surface of the cover-plate glass for obtaining, determines the parameters such as surface roughness and contact angle similarly to Example 1.These results are represented in table 1,2.In the cover-plate glass of the present embodiment, it is thus identified that the contact angle after 2000 times that slides guarantees more than 105 degree, it also is able to improve the durability in nonpolluting coating face in the present embodiment.

(embodiment 3)

Except, in (2) glass surface reformation treatment process of embodiment 1, being set to by the plasma treatment time of planar fashion beyond 30 seconds, manufacture cover-plate glass identically with embodiment 1.

The nonpolluting coating surface of the cover-plate glass for obtaining, determines the parameters such as surface roughness and contact angle similarly to Example 1.These results are represented in table 1,2.In the cover-plate glass of the present embodiment, it is possible to the contact angle after 2000 times that confirms to slide guarantees more than 105 degree, also is able to improve the durability in nonpolluting coating face in the present embodiment.

(comparative example 1)

Except omitting (2) glass surface reformation treatment process of embodiment 1, manufacture cover-plate glass identically with embodiment 1.

The nonpolluting coating surface of the cover-plate glass for obtaining, determines contact angle similarly to Example 1.The results are shown in table 2.In the cover-plate glass of this comparative example, the contact angle after 1000 times that slides is reduced to less than 100 degree.Namely, it is thus identified that the glass surface reformation not carrying out the present invention processes, even if forming nonpolluting coating can not fully obtain the durability in nonpolluting coating face.

(comparative example 2)

Except the Cement Composite Treated by Plasma of the concurrent in (2) glass surface reformation treatment process omitting embodiment 1, manufacture cover-plate glass identically with embodiment 1.

The nonpolluting coating surface of the cover-plate glass for obtaining, determines contact angle similarly to Example 1.The results are shown in table 2.In the cover-plate glass of this comparative example, the contact angle after 1000 times that slides is reduced to less than 105 degree, and the contact angle after 2000 times that slides is reduced to less than 100 degree.Namely, it is thus identified that the glass surface reformation not carrying out the present invention processes, even if forming nonpolluting coating can not fully obtain the durability in nonpolluting coating face.

(comparative example 3)

Except the Cement Composite Treated by Plasma of the planar fashion in (2) glass surface reformation treatment process omitting embodiment 1, manufacture cover-plate glass identically with embodiment 1.

The nonpolluting coating surface of the cover-plate glass for obtaining, determines the parameters such as surface roughness and contact angle similarly to Example 1.These results are represented in table 1, table 2.In the cover-plate glass of this comparative example, the contact angle after 1000 times that slides is reduced to less than 100 degree.Namely, it is thus identified that the glass surface reformation not carrying out the present invention processes, even if forming nonpolluting coating can not fully obtain the durability in nonpolluting coating face.

As mentioned above, confirming in embodiment 1～3 can with the Rsk of the contour curve of glass baseplate surface close to 0, and make the Rku of the contour curve of the glass baseplate surface mode reduced reform glass baseplate surface, make the deviation of the concaveconvex shape of glass baseplate surface diminish.And, confirm in the glass baseplate surface after the surface of the glass substrate after implementing planar fashion Cement Composite Treated by Plasma is implemented concurrent Cement Composite Treated by Plasma further, the nonpolluting coating being coated with by dip method is improved further relative to the attachment stability of glass substrate, compared with the situation of the Cement Composite Treated by Plasma not implementing two modes (comparative example 1～3), it is possible to increase the durability in nonpolluting coating face.

It addition, determined the thickness ratio relative to the thickness of nonpolluting coating of adhering zone in above-described embodiment 1～3 by above-mentioned method, result is the scope of 40%～70%.

(embodiment 4)

It follows that the nonpolluting coating reformation face passed through in the glass substrate that sputtering method is produced in embodiment 1 defines with SiO₂Insulating barrier for main component.It follows that define ELD on the surface of above-mentioned insulating barrier.Specifically, ELD is formed by sputtering film-forming ITO (IndiumTinOxide) film, uses optical lithography to be processed to form above-mentioned ELD into desired pattern form.It addition, metal line uses sputtering method to carry out film forming conductive materials and formed, by optical lithography, conducting objects plasma membrane is processed into desired pattern form, has manufactured touch sensor module.

Touch sensor module for the present embodiment, the tack on above-mentioned insulating barrier and ELD and cover-plate glass surface is good, it is possible to play as the function desired by touch sensor module.

(comparative example 4)

In embodiment 1, do not attempt having manufactured touch sensor module similarly to Example 4 while the nonpolluting coating on the surface contrary with the surface implementing glass surface reformation process is not implemented the Cement Composite Treated by Plasma ((4) nonpolluting coating face reformation process) based on planar fashion.But, in this comparative example, the tack on insulating barrier and ELD and cover-plate glass surface is poor, and the part of insulating barrier and ELD is non-cohesive cannot film forming on cover-plate glass surface, it is impossible to manufacture touch sensor module.

Symbol description: 1... cover-plate glass glass substrate；The first type surface of 1A, 1B... glass substrate；The end face of 1C... glass substrate；2... glass processed surface；3... nonpolluting coating；3a... nonpolluting coating reformation layer；10... portable equipment cover-plate glass.

Claims

1. a manufacture method for electronic equipment cover-plate glass, described electronic equipment cover-plate glass possesses the glass substrate with a pair first type surface end face adjacent with this pair first type surface, and the manufacture method of this electronic equipment cover-plate glass is characterised by, including:

The glass surface reformation that side's first type surface in a pair first type surface 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 these process processes, and forms the operation of glass processed surface；With

Carry out after forming the operation of described glass processed surface, described glass processed surface is formed the operation of nonpolluting coating.

2. the manufacture method of electronic equipment cover-plate glass according to claim 1, it is characterised in that

In the operation forming described nonpolluting coating, by by described glass substrate mass-impregnation to nonpolluting coating material, the outer surface at the described glass substrate including described glass processed surface is integrally formed nonpolluting coating.

3. the manufacture method of electronic equipment cover-plate glass according to claim 2, it is characterised in that

There is process and nonpolluting coating face reformation process that the described nonpolluting coating to the opposing party's first type surface being formed in the pair of first type surface implements to make the contact angle of the water on surface to reduce, form the operation of nonpolluting coating reformation layer.

4. the manufacture method of electronic equipment cover-plate glass as claimed in any of claims 1 to 3, it is characterised in that

Carry out before being additionally included in the operation forming described glass processed surface, described glass substrate is implemented the operation of printing.

5. the manufacture method of electronic equipment cover-plate glass according to claim 4, it is characterised in that

Before described glass baseplate surface is implemented described printing; arrange till implementing described printing for protecting the rotten printing zone protective layer of the printing zone in described glass baseplate surface, reform when implementing described printing to reduce the contact angle of the water on the surface of described printing zone protective layer or remove printing zone protective layer.

6. the manufacture method of electronic equipment cover-plate glass according to claim 4, it is characterised in that

Arranging contact protection layer in advance on described glass substrate, this contact protection layer is for protecting with printer or contacting of its fixture described glass substrate when implementing described printing.

7. the manufacture method of electronic equipment cover-plate glass according to claim 5, it is characterised in that

8. an electronic equipment cover-plate glass, is the electronic equipment cover-plate glass possessing the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, it is characterised in that

The Rsk of the side's first type surface in the pair of first type surface is 0 ± 0.3,

It is formed with nonpolluting coating at one first type surface,

The steel wool of 0000# is being pressed 1kg/cm with face²Relative to described nonpolluting coating surface slide 2000 times when, the contact angle of the water in the surface of described nonpolluting coating is more than 105 degree.

9. electronic equipment cover-plate glass according to claim 8, it is characterised in that

Described nonpolluting coating has the adhering zone on the surface being attached to described glass substrate and is configured in the flow region on surface of this adhering zone.

10. electronic equipment cover-plate glass according to claim 9, it is characterised in that

The thickness of described adhering zone is 40%～70% relative to the ratio of the thickness of described nonpolluting coating.

11. electronic equipment cover-plate glass according to claim 8, it is characterised in that

The opposing party's first type surface in the pair of first type surface is formed with nonpolluting coating reformation layer, and this nonpolluting coating reformation layer is formed by implementing described nonpolluting coating to process for the nonpolluting coating face reformation making the contact angle of the water on surface reduce,

Be formed at one first type surface described nonpolluting coating with the contact angle of the water in the surface of described glass substrate opposition side in the scope of 110 degree～120 degree, the contact angle with the water in the surface of described glass substrate opposition side of the described nonpolluting coating reformation layer being formed at described the opposing party's first type surface is less than 20 degree.

12. electronic equipment cover-plate glass according to claim 9, it is characterised in that

13. electronic equipment cover-plate glass according to claim 10, it is characterised in that

14. electronic equipment cover-plate glass according to claim 11, it is characterised in that

Be formed at one first type surface described nonpolluting coating with the contact angle of the hexadecane in the surface of described glass substrate opposition side in the scope of 60 degree～70 degree, be formed at described the opposing party's first type surface described nonpolluting coating reformation layer with the contact angle of the hexadecane in the surface of described glass substrate opposition side in the scope of 10 degree～20 degree.

15. according to Claim 8 to the electronic equipment cover-plate glass described in any one in 13, it is characterised in that

Be formed at one first type surface described nonpolluting coating with the coefficient of kinetic friction in the surface of described glass substrate opposition side in the scope of 0.1～0.3.

16. according to Claim 8 to the electronic equipment cover-plate glass described in any one in 13, it is characterised in that

Described nonpolluting coating is made up of the fluorine resin material of the perfluorinated polyether compound having hydroxyl at end group containing tool.

17. according to Claim 8 to the electronic equipment cover-plate glass described in any one in 13, it is characterised in that

Described nonpolluting coating is made up of the fluorine resin material that weight average molecular weight is 2000～5000.

18. according to Claim 8 to the electronic equipment cover-plate glass described in any one in 13, it is characterised in that

Described glass substrate is constituted by having carried out chemical enhanced aluminosilicate glass.

19. the manufacture method of a touch sensor module, described touch sensor module possesses the glass substrate with a pair first type surface and the end face adjacent with this pair first type surface, and for detecting the operation of user, the manufacture method of this touch sensor module is characterised by, including:

The glass surface reformation that side's first type surface in a pair first type surface 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 these process processes, form glass processed surface, the described glass substrate of nonpolluting coating has been integrally formed for the outer surface at the described glass substrate including described glass processed surface, the opposing party's first type surface in the pair of first type surface forms the operation of the nonpolluting coating reformation layer described nonpolluting coating being implemented to make the nonpolluting coating face reformation that the contact angle of the water on surface reduces process and formed；With

Outer surface at described nonpolluting coating reformation layer forms the operation of at least any one party of insulating barrier and transparency conducting layer.