WO2015133346A1 - Method for manufacturing curved glass plate provided with anti-glare film - Google Patents

Method for manufacturing curved glass plate provided with anti-glare film Download PDF

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WO2015133346A1
WO2015133346A1 PCT/JP2015/055407 JP2015055407W WO2015133346A1 WO 2015133346 A1 WO2015133346 A1 WO 2015133346A1 JP 2015055407 W JP2015055407 W JP 2015055407W WO 2015133346 A1 WO2015133346 A1 WO 2015133346A1
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anti
glass
film
step
plate
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PCT/JP2015/055407
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French (fr)
Japanese (ja)
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耕司 池上
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日本電気硝子株式会社
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/0018Other optical systems; Other optical apparatus with means for preventing ghost images
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/02Re-forming glass sheets
    • C03B23/023Re-forming glass sheets by bending
    • C03B23/025Re-forming glass sheets by bending by gravity
    • C03B23/0252Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/006Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
    • C03C17/007Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23Oxides
    • C03C17/25Oxides by deposition from the liquid phase
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C21/00Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made
    • G02B1/10Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11Anti-reflection coatings
    • G02B1/113Anti-reflection coatings using inorganic layer materials only
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/02Tempering or quenching glass products using liquid
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/04Tempering or quenching glass products using gas
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C2217/00Coatings on glass
    • C03C2217/20Materials for coating a single layer on glass
    • C03C2217/21Oxides
    • C03C2217/213SiO2
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C2217/00Coatings on glass
    • C03C2217/40Coatings comprising at least one inhomogeneous layer
    • C03C2217/43Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
    • C03C2217/44Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
    • C03C2217/445Organic continuous phases
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C2217/00Coatings on glass
    • C03C2217/40Coatings comprising at least one inhomogeneous layer
    • C03C2217/43Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
    • C03C2217/46Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
    • C03C2217/48Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase having a specific function
    • C03C2217/485Pigments
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C2217/00Coatings on glass
    • C03C2217/70Properties of coatings
    • C03C2217/72Decorative coatings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production
    • Y02P40/57Reduction of reject rates; Improving the yield

Abstract

 Provided is a method whereby a curved glass plate provided with an anti-glare film having high anti-glare properties can be suitably manufactured. In the present invention, a film formation step is performed for forming an anti-glare film (11) having a higher glass transition temperature (Tg) than a flat glass plate (10) on a principal face (10b) of the flat glass plate (10), and fabricating a flat glass plate (12) provided with an anti-glare film. In the present invention, a deformation step is performed for deforming the flat glass plate (12) provided with the anti-glare film while heating the same, and fabricating a curved glass plate (14) provided with the anti-glare film.

Description

Method of manufacturing the anti-glare film with glass curved plate

The present invention, the present invention relates to a method of manufacturing a glass curved plate with an antiglare film.


Conventionally, as a front plate of the touch sensor, it is proposed to arrange the glass plate with an antiglare film (e.g., see Patent Document 1). By using a glass plate with an antiglare film as a front plate of the touch sensor, to suppress the reflection of the background, thereby improving the visibility. Further, the front plate by forming a glass sheet, it is possible to obtain a front plate of high strength.

WO 2009/025289 No.

By the way, from the point of view of design, there is a demand placed a touch sensor which is curved on top of the curved display. Further, from the viewpoint of further improving the visibility, the curved touch sensor has been demanded. Excellent visibility, in order to realize a touch sensor which is curved, it is necessary curved front plate having a high antiglare property.

The main purpose of the present invention is to provide a method capable of suitably manufacturing a glass curved plate with an antiglare film having a high antiglare property.

In the manufacturing method of the first anti-glare film with glass curved plate according to the present invention, on the one main surface of the glass plate, the glass transition temperature (Tg) of forming a high antiglare film than the flat glass plate, with an anti-glare film the film formation step of preparing a glass plate. Deforming while heating the glass plate with an anti-glare film, performing deformation process of manufacturing the glass curved plate with an antiglare film. In the manufacturing method of the first anti-glare film with glass curved plate according to the present invention, the formation of the anti-glare film on the glass plate before deformation. Therefore, it is possible to form an excellent antiglare film uniformity. The glass transition temperature of the anti-glare film (Tg) of, higher than the glass transition temperature of the glass flat plate (Tg), it is possible to prevent the anti-glare film is deformed or the like in the deformation step. For example, it is possible to obtain a glass curved plate with an antiglare film uniformity of the surface roughness has a high anti-glare film. Therefore, according to the manufacturing method of the first anti-glare film with glass curved plate according to the present invention may be suitably produced glass curved plate with an antiglare film having a high antiglare property.

Moreover, anti-glare film is usually a glass transition temperature (Tg) and excellent higher scratch resistance. Therefore, according to the manufacturing method of the first anti-glare film with glass curved plate according to the present invention may be suitably produced excellent antiglare film coated glass curved plate scratch resistance.

In the manufacturing method of the first anti-glare film with glass curved plate according to the present invention, it is preferred that the anti-glare film includes a silicon oxide. Anti-glare film including silicon oxide is because high glass transition temperature (Tg).

In the manufacturing method of the second anti-glare film with glass curved plate according to the present invention, the film forming process on the one main surface of the glass plate, which formed the anti-glare film that contains silicon oxide, to produce a glass plate with an anti-glare film I do. Deforming while heating the glass plate with an anti-glare film, performing deformation process of manufacturing the glass curved plate with an antiglare film. In the manufacturing method of the second anti-glare film with glass curved plate according to the present invention, the formation of the anti-glare film on the glass plate before deformation. Therefore, it is possible to form an excellent antiglare film uniformity. Moreover, anti-glare film includes a silicon oxide, glass transition temperature of the anti-glare film (Tg) of higher, it is possible to suppress the anti-glare film is deformed or the like in the deformation step. For example, it is possible to obtain a glass curved plate with an antiglare film uniformity of the surface roughness has a high anti-glare film. Therefore, according to the manufacturing method of the second anti-glare film with glass curved plate according to the present invention may be suitably produced glass curved plate with an antiglare film having a high antiglare property.

Moreover, anti-glare film including silicon oxide is excellent in scratch resistance. Therefore, according to the manufacturing method of the second anti-glare film with glass curved plate according to the present invention may be suitably produced excellent antiglare film coated glass curved plate scratch resistance.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention preferably further comprises a strengthening process to strengthen glass curved plate with an antiglare film. By performing the strengthening process, it may produce a glass curved plate with an antiglare film having an even higher strength.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the strengthening process, the glass curved plate with an antiglare film may be physically strengthened.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, by cooling the glass curved plate with the heated anti-glare film in deformation step may be carried out physically strengthened.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the film forming step, by applying the coating solution onto the one main surface of the glass plate, be formed antiglare film good.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the deformation step may be by firing the applied coating liquid.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the film-forming step, heating the coated coating solution, in deforming step, to a temperature above the heating temperature in the film formation process it may be heated.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the deformation step, on a mold having a curved molding surface is heated in a state where we arranged glass plate with an anti-glare film it may be obtained a glass curved plate with an antiglare film by softening deformation of the glass plate with an anti-glare film Te.

Manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in the deformation step, it is preferred that the anti-glare film is placed flat glass plate with an anti-glare film so as to face the forming surface.

In each of the first or second method for manufacturing the antiglare film with glass curved plate according to the present invention, in the film formation step, an antiglare film may be formed also on the other main surface of the glass plate.

In each of the first or second method for fabricating anti-glare film with a glass curved plate according to the present invention, it is preferable that the thickness of the antiglare film is 1.5μm or less.

In each of the manufacturing method of the first or second anti-glare film with a glass curved plate according to the present invention, in a variant process, with glass curved plate with an antiglare film having a curvature in one direction, inclined with respect to the one direction it may be deformed glass plate with an anti-glare film as well have a curvature in the other direction.


According to the present invention, it is possible to provide a method capable of suitably manufacturing a glass curved plate with an antiglare film having a high antiglare property.

Figure 1 is a schematic cross-sectional view of a glass plate with an antiglare film in the first embodiment. Figure 2 is a flow chart showing a manufacturing process of a glass curved plate with an antiglare film in the first embodiment. Figure 3 is a schematic cross-sectional view illustrating a modified process of the first embodiment. Figure 4 is a schematic cross-sectional view of the anti-glare film with a glass curved plate in the first embodiment. Figure 5 is a flow chart showing a manufacturing process of a glass curved plate with an antiglare film according to the second embodiment. Figure 6 is a flow chart showing a manufacturing process of a glass curved plate with an antiglare film according to the third embodiment. Figure 7 is a flow chart showing a manufacturing process of the anti-glare film with a glass curved plate in the fourth embodiment. Figure 8 is a schematic sectional view illustrating a modified process in the fifth embodiment. Figure 9 is a schematic cross-sectional view of the anti-glare film with a glass curved plate in the fifth embodiment.

Hereinafter, an example of preferred embodiments of the present invention. However, the following embodiments are merely illustrative. The present invention is not limited to the following embodiments.

In the drawings referred to in the embodiments and the like, members having substantially the same function thereof will be referred to by the same reference numerals. Also, the drawings referred to in the embodiments and the like, are those described schematically. Etc. The ratio of the dimensions of the drawn object in the drawings, and may be different from the and the ratio of the dimensions of the real objects. Also among the drawings, there are cases where dimensional ratios and the like of the object are different. Dimensional ratios and the like of specific objects should be determined in consideration of the following description.

(First Embodiment) This embodiment describes enhanced method for manufacturing an anti-glare film with glass curved plate. Enhanced anti-glare film with glass curved plate applications produced in the present embodiment is not particularly limited. The anti-glare film with glass Kyokuban reinforced produced in the present embodiment, for example, a touch panel, can be suitably used for a vehicle instrument panel or the like.

First, a flat glass plate 10 shown in FIG. Glass plate 10 has a first major surface 10a, and a second main surface 10b.

Glass plate 10 may be made of any glass. If you physically strengthened flat glass plate 10, as glass plate 10, it is preferable to use a glass plate thermal expansion coefficient of 50 × 10 -7 / ° C. or more, specifically, the thermal expansion coefficient of 50 × 10 - it is preferable to use a 7 / ° C. ~ glass plate is 120 × 10 -7 / ℃. In the case of chemically strengthening the glass plate 10, as a glass composition, in mass%, it is preferable to use a glass plate containing an alkali metal oxide of 3% to 25%, specifically, the Li 2 O + Na 2 O it is preferable to use 3% to 25% including the glass plate.

The thickness of the glass plate 10 is not particularly limited. The thickness of the glass plate 10, for example, may be about 0.3 mm ~ 15 mm.

Then, on the second main surface 10b of the glass plate 10, to form the anti-glare film with the glass plate 12 by forming an anti-glare film 11 (Step S1: the film forming step). Method of forming the antiglare film 11 is not particularly limited. Antiglare film 11 can be, for example, sputtering or chemical vapor deposition: can be formed by (Chemical Vapor Deposition CVD) method or the like. In the present embodiment, antiglare film 11, as shown in FIG. 2, by coating a coating solution on the second main surface 10b of the glass plate 10 (Step S10: coating step), a coating layer by drying formed, it is formed by firing the coating layer (step S11: firing step). Accordingly, in the present embodiment, the film forming step (step S1) includes a step S10, and step S11.

The coating composition was applied, the coating layer is formed by drying, by firing the coating layer, it is possible to easily manufacture a high antiglare film 11 glass transition temperature (Tg).

Following the deposition step (step S1), and the cooling step of cooling the antiglare film with the glass plate 12 (step S21).

Antiglare film 11 comprises amorphous. Antiglare film 11 may be composed of only an amorphous component may include an amorphous and crystalline. However, anti-glare film 11 is preferably made of amorphous only. Antiglare film 11, because it contains amorphous, having a glass transition temperature (Tg). The glass transition temperature of the anti-glare film 11 (Tg) is higher than the glass transition temperature of the glass plate 10 (Tg).

The material of the antiglare film 11 is not particularly limited as long as the glass transition temperature of the anti-glare film 11 (Tg) is such as to be higher than the glass transition temperature of the glass plate 10 (Tg). Antiglare film 11 can, for example, may contain silicon oxide. Antiglare film 11 may be formed of a silicon oxide film.

The thickness of the antiglare film 11 can, for example, can be appropriately set according to characteristics such as optical properties required for the antiglare film 11. The thickness of the antiglare film 11 may be a 1.5μm or less.

Next, deforming while heating the antiglare film with the glass plate 12 (deforming step: step S3). Specifically, in this embodiment, as shown in FIG. 3, first, on the molding surface 13a of the mold 13, to place the anti-glare film with the glass plate 12. Molding surface 13a is curved. Molding surface 13a, for example, spherical, ellipsoidal surface shape may be a parabolic shape. Heating the antiglare film with the glass plate 12 in that state (heating step: step S31), it is deformed into a shape along the forming surface 13a to (deforming step: step S32). Thus, to produce a glass curved plate 14 with anti-glare film shown in FIG.

In this variant step (step S3), and it is preferable to arrange the glass plate 12 with anti-glare film as antiglare film 11 is opposed to the forming surface 13a on the molding surface 13a. Accordingly, the glass transition temperature (Tg) of relatively high antiglare film 11 is in contact with the molding surface 13a, it is possible to prevent the glass transition temperature (Tg) is relatively low glass plate 10 in contact with the molding surface 13a . Therefore, it is possible to suitably prevent the glass plate 10 is burned on the molding surface 13a.

The shape of the antiglare film with glass curved plate 14 is not particularly limited. The anti-glare film with glass curved plate 14, for example, which has a curvature in one direction may have a shape having a curvature even in other different direction to the one direction. The anti-glare film with glass curved plate 14, for example, spherical, ellipsoidal surface, may be a parabolic shape or the like, a first planar portion and a second flat portion, the first and second planes parts may have a curved portion that connects.

After the deformation process of step S3, performing cooling step for cooling the antiglare film coated glass curved plate 14 (step S41).

Next, as shown in FIG. 2, performing the strengthening process to strengthen the anti-glare film with glass curved plate 14 (step S5). In strengthening process (step S5), and specifically, first, after the heating step of heating the anti-glare film with glass curved plate 14 (step S51), it performs the enhanced processing step (step S52). Method of enhancing anti-glare film with glass curved plate 14 is not particularly limited. For example, in the enhancement processing step of step S52, the anti-glare film with glass curved plate 14, it may be chemically strengthened by ion exchange, or may be physically strengthened. In the present embodiment, specifically, in the enhancement processing step of step S52, the physical strengthening anti-glare film with glass curved plate 14. That is, in the strengthening process of step S52, the physical strengthening by quenching the antiglare film coated glass curved plate 14.

Incidentally, the physical strengthening is also called heat strengthening to the strengthening by forming a compressive stress layer on the surface of the glass material by quenching the heated glass material. The physical strengthening, air cooling tempering, includes a liquid cooling strengthening. Physical strengthening is excellent in productivity compared to the chemical strengthening. Therefore, in the enhancement process (step S5), and it is preferable to perform physical reinforcement.

After strengthening process in step S5, it performs a cooling step of cooling the antiglare film coated glass curved plate 14 to room temperature (step S61).

However, when strengthening glass sheets, regardless of the method of enhancing the glass plate, it is generally necessary to heat the glass sheet. Thus, for example, when configuring the antiglare layer by the surface of the uneven layer of the glass plate formed by etching or the like are provided as the anti-glare layer before strengthening, anti-glare layer is deformed in the enhancement process, anti-glare effect is reduced I fear there is. Similarly, the case of providing the anti-glare film on the glass plate, concerned that deformation in the deformation step involving heating, it is common to form an anti-glare film after reinforcement. In the case of manufacturing a tempered glass curved plate from the glass plate, than the heating temperature in the strengthening process, the higher the heating temperature in the deformation process. Therefore, when the deformation step carried out after the strengthening process, strengthening of the glass plate is released. From the above, an attempt to prepare a glass curved plate with an antiglare film, typically first performs a modification process, then perform the strengthening process, the anti-glare film forming step in this order. However, the case of providing the anti-glare film on the curved surface, the antiglare properties of the antiglare film is different between the central portion and the peripheral portion. Therefore, it is difficult to realize a high antiglare properties in both the central portion and the peripheral portion.

In this embodiment, the glass transition temperature (Tg) to form a high antiglare film 11 than the glass plate 10. Therefore, the anti-glare film 11 is hardly deformed in the deformation step and strengthening process. Therefore, after the formation of the antiglare film 11 on the glass plate 10, it is possible to perform the deforming step and strengthening process. Therefore, it is possible to produce the anti-glare film with glass curved plate 14 having an anti-glare film 11 having a high antiglare properties in both the central portion and the peripheral portion.

Further, since the glass curved plate 15 is enhanced, it has a high strength. Inorganic anti-glare film glass transition temperature (Tg) higher than the glass plate 10 is a high strength, and has excellent scratch resistance. As described above, according to the manufacturing method of this embodiment has a high antiglare property, it can be produced antiglare film coated glass curved plate 14 having excellent strength and abrasion resistance.

Incidentally, it is conceivable to form the anti-glare film after the strengthening process. However strengthening and increasing the heating temperature in the firing step of the anti-glare film from being released. Therefore, in this case, it must be lowered heating temperature in the baking step of the antiglare film. Therefore, it is difficult to form a anti-glare film having excellent scratch resistance at a high strength. In the present embodiment, the strengthening process after the formation of the antiglare film 11. Therefore, it is possible firing anti-glare film 11 at high temperature. Therefore, it is possible to form the anti-glare film 11 having excellent scratch resistance at a high strength.

From the viewpoint of achieving more excellent scratch resistance, it is preferable to antiglare film 11 comprises silicon oxide, and more preferably composed of a silicon oxide film.

From the viewpoint of realizing higher antiglare property, the heating temperature in the firing step, it is preferable that the softening point of 200 ° C. or higher antiglare film 11 (Ts) or less. Further, the heating temperature in each of the deforming step and strengthening process, is preferably not more than the softening point of the anti-glare film 11 (Ts), more preferably to below the glass transition temperature (Tg) of, the glass transition temperature (Tg) of particularly preferably set to 100 ° C. temperature lower than.

Incidentally, for example, the anti-glare film 11 is too thick, the compression stress in the compression stress depth (DOL) and compression stress layer of compressive stress layer formed in the enhancement step (CS) comprises a first main surface 10a side first If different between the second main surface 10b side is. In that case, the compressive stress (CS) is an anti-glare film with glass curved plate 14 deformed undesirably, it may be difficult to produce the anti-glare film with glass curved plate 14 having a high shape accuracy. Therefore, the thickness of the antiglare film 11 is preferably 1.5μm or less, more preferably 1.0μm or less. However, there are cases where the anti-glare film 11 is too thin, not sufficiently excellent antiglare effect. Therefore, the thickness of the antiglare film 11 is preferably 0.3μm or more.

Hereinafter, a description will be given of another example of a preferred embodiment of the present invention. In the following description, with reference to the first embodiment is substantially the members having common functions in common reference numerals, and description thereof is omitted.

(Second Embodiment) FIG. 5 is a flow chart showing a manufacturing process of a glass curved plate with an antiglare film according to the second embodiment. As shown in FIG. 5, in the second embodiment, after the coating step (step S10), and performs the preliminary calcination of the coating layer (pre-baking step: step S12). Then, after cooling in step S13, in step S14, and baked by heating to a temperature higher than the heating temperature during calcination. In this way, it is possible to tighten baked anti-glare film 11 in step S14. Therefore, it is possible to form a higher strength antiglare film 11.

In the present embodiment, after step S14, without performing a cooling step, the deformation process of step S32. Therefore, there is no absolutely necessary to provide a heating step between the step S14 and the step S32.

(Third Embodiment) FIG. 6 is a flow chart showing a manufacturing process of a glass curved plate with an antiglare film according to the third embodiment. As shown in FIG. 6, in the third embodiment, following the step of applying the step S10, it performs a degreasing step of removing organic components contained in the coating solution (step S12a). Then, after step S12a, after cooling in step S13, and baked in a step S14. In this case, the heating temperature in the step S12a is lower than the heating temperature in the step S12. Therefore, it is possible to reduce the energy required for manufacturing the antiglare film with glass curved plate 14. Therefore, it is possible to reduce the manufacturing cost of the anti-glare film with glass curved plate 14.

(Fourth Embodiment) FIG. 7 is a flow chart showing a manufacturing process of the anti-glare film with a glass curved plate in the fourth embodiment. As shown in FIG. 7, in this embodiment, following the step of applying the step S10, it performs a baking step by heating (step S14). Then, without cooling, as is or further heated, performing deformation process of step S32. Then, without cooling, performing strengthening processing steps in step S52. In this way, it is possible to reduce the number of times of performing the heating step. Therefore, a small step antiglare film coated glass curved plate 14 can be easily and inexpensively manufactured.

(Fifth Embodiment) FIG. 8 is a schematic sectional view illustrating a modified process in the fifth embodiment. Figure 9 is a schematic cross-sectional view of the anti-glare film with a glass curved plate in the fifth embodiment.

As shown in FIGS. 8 and 9, in the fifth embodiment, to form the anti-glare film 11 on the second major surface 10b of the glass plate 10, an anti-glare film also on the first main surface 10a 16 to the formation. In this way, it is possible to produce the anti-glare film with glass curved plate 14 having a more excellent antiglare properties.

Further, a compression stress layer formed on the first main surface 10a side in the enhancement process, between the compressive stress layer formed on the second main surface 10b side, compressive stress depth (DOL) and compressive stress each of the difference between (CS) may be reduced. Therefore, it can produce a glass curved plate 14 with anti-glare film having a higher shape accuracy.

In the above embodiment (sixth embodiment) has been described an example of performing film formation step S1, deforming step S3 and strengthening process S5. For example, the film formation step S1, in addition to the deformation step S3 and strengthening process S5, may be performed printing step of printing a further membrane. Specifically, for example, the light shielding film (black mask) of the peripheral edge portion of the cover member of the display panel or decorative films may be performed printing step of printing a for decoration.

Hereinafter, in the sixth embodiment, an example of performing printing step of printing the light-shielding film. Printing process, for example, can be carried out in the following manner. First, a black inorganic pigment of Fe-Co-Cr-based, a silicone resin, were mixed to prepare a paste. The paste is printed by screen printing on the periphery of the first main surface 10a of the glass plate 10. Then, the printed coating is dried, by one hour heat treatment at a temperature of 100 ° C. ~ 500 ° C., it is possible to form the light shielding film (inorganic pigment layer). The thickness of the light shielding film, for example, can be set to 10 [mu] m. Shielding film may be formed on the same plane as the antiglare film 11, but more preferred is the anti-glare film 11 is formed on the surface opposite.

The average light transmittance of the 400 nm ~ 700 nm of the light shielding film is preferably less than 0.3%.

Pigment to be used is may be either organic pigments and inorganic pigments, inorganic pigments are more preferable excellent in heat resistance.

Specific examples of the inorganic pigments, for example, TiO 2, ZrO 2, white pigment ZrSiO 4, etc., Co-Al-Zn-based, Co-Al-Si-based, blue pigments such as Co-Al-Ti-based, Co- al-Cr-based, green pigments such as Co-Ni-Ti-Zn-based, Ti-Sb-Cr-based, Ti-Ni-based yellow pigment, a red pigment of Co-Si-based, etc., Ti-Fe-Zn type, Fe -Zn system, Fe-Ni-Cr-based, brown pigments such as Zn-Fe-Cr-Al-based, Fe-Mn system, Fe-Co-Cr-based, Fe-Mn-Al-based, Cu-Cr-based, Cu- cr-Fe-based, Cu-Cr-Mn system, such as black pigments such like. These inorganic pigments may be used alone or in combination. In particular, if it is component contained in the glass composition such as TiO 2, ZrO 2, ZrSiO 4 , be re-melted without coloring the glass, it is possible to recycle.

Printing compositions, for example, can be prepared by a polyimide resin is a highly heat-resistant resin in addition to the silicone resin, (aromatic) polyamide resin, and fluorine-based resin is mixed with a silicone resin.

Printing process, for example, film-forming step S1, may be performed before performing the deforming step S3 and strengthening process S5 (printing step → film forming step S1 → deformation step S3 → strengthening step S5).

Printing process, for example, may be carried out between the film-forming step S1 and deforming step S3 (deposition process S1 → printing step → deformation step S3 → strengthening step S5).

Printing process, for example, may be carried out between the deformation step S3 and strengthening process S5 (film forming step S1 → deformation process S3 → printing step → strengthening step S5).

(Modification)
In the first embodiment and the fourth embodiment has been described for an example of performing strengthening process (step S5). However, the present invention is not limited thereto. For example, in each of the first and fourth embodiments may be omitted strengthening process (step S5).

(Example)
In accordance with the flowchart shown in FIG. 2 described in the first embodiment, to prepare a glass curved plate with an antiglare film. Specifically, to prepare a glass curved plate with an antiglare film in the following manner.

Step S10 (coating): glass plate (Nippon Electric Glass Co., Ltd. T2X1 (unreinforced flat glass plate), 100 mm × 270 mm × 0.55 mm) above the, was coated with liquid containing SiO 2 by spraying.

Step S11 (calcination): Then, by firing a glass plate coated with a liquid containing SiO 2 at 180 ° C..

Step S21 (cooling): The glass plate was allowed to cool firing in step S11, to produce a glass plate with an anti-glare film.

Step S31 (heating): on the molding surface of the spherical mold, placing the glass plate with an anti-glare film, and heated to 800 ° C. in an air atmosphere.

Step S32 (deformed) is softened by heating the glass plate with an anti-glare film in step S31, is deformed into a shape along the forming surface by its own weight.

Step S41 (cooling): to prepare a glass curved plate with an antiglare film by cooling the antiglare film coated glass plate is deformed in step S32.

Step S51 (heating): the anti-glare film with a glass curved plate was heated to 450 ° C. in an air atmosphere.

Step 52 (strengthened): the anti-glare film with glass curved plate heated at step S51, and chemically strengthened by immersion 3 hours in KNO 3 molten salt at 450 ° C..

Step S61 (cooling): a chemically strengthened antiglare film-glass reinforced curved plate and allowed to cool in step S52.

By performing the above steps, high surface roughness of the uniformity of the anti-glare film, it is possible to manufacture anti-glare film with a glass reinforced curved plate having excellent antiglare property.


10: flat glass plate 10a: first main face 10b: second main surface 11: anti-glare film 12: an anti-glare film with the glass plate 13: mold 13a: molding surface 14: anti-glare film with a glass curved plate 15: Glass curved plate 16: anti-glare film S1: film forming step S10: coating step S11: firing step S12: pre-baking step S12a: degreasing step S13: cooling step S14: firing step S21: cooling step S3: modified step S31: the heating step S32: modified machining step S41: cooling step S5: strengthening process S51: heating step S52: strengthening processing steps S61: cooling step

Claims (14)

  1. On the one main surface of the glass plate, a film forming process a high antiglare film glass transition temperature (Tg) was formed, to prepare a glass plate with an anti-glare film than the flat glass plate,
    Deforming while heating the glass plate with the anti-glare film, a deformation step of preparing a glass curved plate with an antiglare film,
    Comprising a method for producing a antiglare film coated glass curved plate.
  2. The anti-glare film including a silicon oxide, a manufacturing method of the anti-glare film with glass curved plate of claim 1.
  3. On the one main surface of the glass plate, an antiglare film including silicon oxide is deposited, the deposition step of preparing a glass plate with an anti-glare film,
    Deforming while heating the glass plate with the anti-glare film, a deformation step of preparing a glass curved plate with an antiglare film,
    Comprising a method for producing a antiglare film coated glass curved plate.
  4. The anti-glare further comprising a strengthening process of film-strengthening glass curved plate, the manufacturing method of the anti-glare film with glass curved plate according to any one of claims 1 to 3.
  5. Wherein the reinforcing step, physically strengthened glass curved plate with the anti-glare film, method of manufacturing an anti-glare film with glass curved plate of claim 4.
  6. By cooling the antiglare film with glass curved plate which is heated in the deformation step, performing the physical strengthening method for producing an anti-glare film with glass curved plate of claim 5.
  7. In the film forming step, by applying the coating solution onto the one main surface of the glass plate, to form the anti-glare film, a glass curved plate with an antiglare film according to any one of claims 1 to 6, the method of production.
  8. In the deforming step, firing the coated coating liquid, method for manufacturing the antiglare film with glass curved plate of claim 7.
  9. In the film forming step, heating the coated coating liquid,
    In the deforming step, heated to a temperature higher than the heating temperature in the film formation step, the manufacturing method of the anti-glare film with glass curved plate according to claim 7 or 8.
  10. In the deforming step, on a mold having a curved molding surface, the antiglare film coated glass piece by softening deformation of the glass plate with the anti-glare film is heated while being arranged flat glass plate with the anti-glare film obtaining a plate, method for manufacturing an anti-glare film with glass curved plate according to any one of claims 1 to 9.
  11. In the deforming step, the anti-glare film disposing the glass plate with an anti-glare film so as to face the forming surface, method of manufacturing the anti-glare film with glass curved plate of claim 10.
  12. Wherein in the film forming step, forming also an anti-glare film on the other major surface of the flat glass plate, a manufacturing method of the anti-glare film with glass curved plate according to any one of claims 1 to 11.
  13. The thickness of the antiglare film is 1.5μm or less, the production method of the anti-glare film with glass curved plate according to any one of claims 1 to 12.
  14. In the deforming step, the with anti-glare film with glass curved plate having a curvature in one direction, the deformation of the glass plate with an anti-glare film so as to have a curvature in other direction inclined with respect to said one direction the method of antiglare film coated glass curved plate according to any one of claims 1 to 13.
PCT/JP2015/055407 2014-03-03 2015-02-25 Method for manufacturing curved glass plate provided with anti-glare film WO2015133346A1 (en)

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JP2016506439A JPWO2015133346A1 (en) 2014-03-03 2015-02-25 Method of manufacturing the anti-glare film with glass curved plate
CN 201580003435 CN105849060A (en) 2014-03-03 2015-02-25 Method for manufacturing curved glass plate provided with anti-glare film

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JP2010509175A (en) * 2006-11-14 2010-03-25 サン−ゴバン グラス フランス Porous layer, their preparation and their use
US20130142994A1 (en) * 2011-12-06 2013-06-06 Guardian Industries Corp. Coated articles including anti-fingerprint and/or smudge-reducing coatings, and/or methods of making the same
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JPH11292568A (en) * 1997-12-09 1999-10-26 Nippon Sheet Glass Co Ltd Antireflection glass sheet, its production and coating composition for antireflection film
JP2004511418A (en) * 2000-10-18 2004-04-15 フラベーク ゾーラーグラース ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト Safety glass having a wear-resistant porous SiO2 antireflection film
JP2010509175A (en) * 2006-11-14 2010-03-25 サン−ゴバン グラス フランス Porous layer, their preparation and their use
JP2013537873A (en) * 2010-09-01 2013-10-07 エージーシー グラス ユーロップ Glass substrate an antireflection layer coated
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Publication number Priority date Publication date Assignee Title
DE102017008996A1 (en) 2016-09-27 2018-04-19 Asahi Glass Company, Limited A method for producing a glass article and a glass article

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KR20160128292A (en) 2016-11-07 application
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