WO2014181780A1 - Cover glass for display devices - Google Patents

Cover glass for display devices Download PDF

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Publication number
WO2014181780A1
WO2014181780A1 PCT/JP2014/062192 JP2014062192W WO2014181780A1 WO 2014181780 A1 WO2014181780 A1 WO 2014181780A1 JP 2014062192 W JP2014062192 W JP 2014062192W WO 2014181780 A1 WO2014181780 A1 WO 2014181780A1
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WO
WIPO (PCT)
Prior art keywords
glass
resin
mold
display device
plate glass
Prior art date
Application number
PCT/JP2014/062192
Other languages
French (fr)
Japanese (ja)
Inventor
小金澤　光司
聡 白鳥
良太 中島
孝夫 土居
秀樹 福永
暢彦 竹下
真 府川
淳平 滝川
一博 岡田
拓哉 渡部
孝雄 本島
Original Assignee
旭硝子株式会社
Ａｇｃマテックス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2013097819A external-priority patent/JP2016136164A/en
Application filed by 旭硝子株式会社, Ａｇｃマテックス株式会社 filed Critical 旭硝子株式会社
Priority to PCT/JP2014/079363 priority Critical patent/WO2015098300A1/en
Priority to CN201480070969.4A priority patent/CN105992684B/en
Priority to EP14874637.3A priority patent/EP3088154A4/en
Priority to KR1020167014357A priority patent/KR20160102975A/en
Priority to JP2015554647A priority patent/JPWO2015098300A1/en
Priority to TW103138535A priority patent/TW201532780A/en
Publication of WO2014181780A1 publication Critical patent/WO2014181780A1/en
Priority to US15/193,505 priority patent/US20160303783A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14434—Coating brittle material, e.g. glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles

Definitions

  • the present invention relates to a cover glass for a display device.
  • Patent Document 1 Conventionally, for example, one in which a resin molded body is arranged around a glass plate is known (see, for example, Patent Document 1).
  • FIG. 5 is a perspective view showing a conventional cover glass for a display device.
  • 6 is a cross-sectional view taken along line AA in FIG.
  • a resin molded body 103 is disposed around the plate glass 102.
  • the plate glass 102 has a glass surface 102a facing a user (not shown) who uses the display device, and a glass side surface 102c continuous with the glass surface 102a.
  • a fluorine-containing organosilicon compound is used on the glass surface 102a.
  • a functional film 104 to be configured is disposed.
  • the resin molded body 103 is shaped to sandwich the outer edge of the plate glass 102, and covers the outer edge of the plate glass 102 with an adhesive 105 interposed therebetween.
  • the resin molded body 103 covers the outer edge of the plate glass 102 having the functional film 104 with an adhesive 105.
  • an interface 141 with the adhesive 105 is an interface with the adhesive 105.
  • the fluorine-containing organosilicon compound that generally constitutes the functional film 104 imparts functionality, water repellency, oil repellency, and the like.
  • the adhesive strength of the adhesive 105 at the interface 141 deteriorates over time, and defects occur in the bonding between the plate glass 102 and the resin molded body 103.
  • the cover glass 101 may be damaged. Further, even other functional films may adversely affect the adhesion between the plate glass 102 and the resin molded body 103.
  • the present invention has been made in view of the above points, and an object thereof is to provide a cover glass for a display device that can suppress a bonding defect between a plate glass and a resin molded body.
  • the cover glass for a display device includes a glass member having a glass surface on the user side using the display device, a glass side surface continuous with the glass surface, and a functional film provided on the glass surface.
  • a resin molded body provided around the glass member, the film surface of the functional film and the resin surface of the resin molded body are flush with each other, and between the glass side surface and the resin molded body It is the cover glass for display apparatuses in which the adhesive agent is provided.
  • a glass member is disposed in a mold for molding the resin molded body, the mold is clamped, and the glass member is sandwiched between the molds.
  • the cavity space Filling the cavity space with a resin by injecting a resin into a cavity space formed in at least a part of the periphery of the glass member by clamping the mold; and the cavity space Resin press molding while pressurizing the resin filled in with a predetermined resin compression pressure, and opening the mold clamped and taking out a glass resin integrated molded product, and the resin pressurization
  • a cover glass for a display device that can suppress a bonding defect between a plate glass and a resin molded body.
  • FIG. 2 is a sectional view taken along line AA in FIG. 1. It is sectional drawing which shows the cover glass for display apparatuses of 2nd Embodiment. It is sectional drawing which shows the cover glass for display apparatuses of 3rd Embodiment. It is a perspective view which shows the conventional cover glass for display apparatuses.
  • FIG. 6 is a cross-sectional view taken along line AA in FIG. It is front sectional drawing which shows one Embodiment of the manufacturing apparatus of a glass resin integrated molded product. It is a figure which shows the manufacture procedure of the glass resin integrated molded product using a glass resin integrated molded product manufacturing apparatus.
  • FIG. 1 is a perspective view showing a cover glass for a display device according to the first embodiment.
  • 2 is a cross-sectional view taken along line AA in FIG.
  • the display device cover glass 1 of the first embodiment is a glass resin integrated molded product in which a resin molded body 3 that is a frame is disposed around a plate glass 2 as a glass member.
  • the plate glass 2 has a glass surface 2a which is a user surface on the user (not shown) side who uses the display device, and a glass side surface 2c which is continuous with the glass surface 2a. Details will be described later on the glass surface 2a.
  • a functional film 4 is disposed.
  • a resin film such as polycarbonate may be bonded to the surface of the plate glass 2 opposite to the glass surface 2a to form a laminate of the plate glass 2 and the resin film.
  • the resin molded body 3 shown in FIG. 2 has a unique cross-sectional shape. That is, the resin molded body 3 has a resin surface 3a flush with the film surface 4a of the functional film 4, and a resin inner side surface 3d facing the glass side surface 2c. The resin molded body 3 is joined to the plate glass 2 by the resin inner side surface 3d coming into contact with the glass side surface 2c via the adhesive 5.
  • the plate glass 2 and the resin molded body 3 are integrated.
  • the resin molded body 3 is continuously formed around the plate glass 2 without a seam.
  • the tensile strength (based on ASTM-D638) of the resin molded body 3 is preferably 180 to 240 MPa, and more preferably 190 to 220 MPa.
  • the film surface 4a and the resin surface 3a are “same”. There is no step at the seam between the film surface 4a and the resin surface 3a.
  • the height difference between the film surface 4a and the resin surface 3a is preferably 20 ⁇ m or less, more preferably 10 ⁇ m or less, and no difference in level. A complete “evenness" is most preferred.
  • the glass side surface 2c and the resin inner side surface 3d are separated from each other by the adhesive 5 interposed therebetween, but as shown in FIG. 2, a portion forming the resin surface 3a in the resin molded body 3 However, it protrudes on the adhesive 5 and is in contact with the side surface of the functional film 4. For this reason, there is substantially no gap between the film surface 4a and the resin surface 3a.
  • the display device cover glass 1 in which there is no step at the joint between the film surface 4a and the resin surface 3a and no gap exists, allows the boundary between the film surface 4a and the resin surface 3a to be seamless to the user. For example, it can be obtained by the production method of the present invention described later.
  • the resin molded body 103 does not have a shape that covers the outer edge of the plate glass 102 as in the conventional cover glass 101 for a display device (see FIG. 6), the interface between the functional film 4 and the adhesive 5 Does not exist or very little is present. For this reason, it is prevented that the adhesive strength in the interface of the functional film 4 and the adhesive agent 5 falls and the joining defect of the plate glass 2 and the resin molding 3 is produced, and the possibility that the cover glass 1 for display devices may be damaged is reduced. it can.
  • the resin molded body 103 largely protrudes from the glass surface 102 a (functional film 104) of the plate glass 102. Therefore, an L-shaped depression (indicated by reference numeral 151 in FIG. 6) is formed at the boundary portion between the protruding portion and the plate glass 102 in the resin molded body 103 or at the boundary portion between the plate glass 102 and the functional film 104. In this recess 151, dust and dust tend to accumulate.
  • the film surface 4a of the functional film 4 and the resin surface 3a of the resin molded body 3 are flush with each other, and is denoted by reference numeral 151 in FIG. Such a problem that the dust is not formed and dust or dust tends to collect can be avoided.
  • the resin molded body 103 covers the plate glass 102 so as to sandwich it.
  • the display area becomes narrower than the size of the plate glass 102, and in order to enlarge the display area, a larger size of the plate glass 102 is necessary, and it is difficult to reduce the size and weight of the display device, and the cost increases.
  • the resin molded body 3 is not in a shape that sandwiches and covers the plate glass 2, so that the size of the plate glass 2 is, for example, that of the conventional display device cover glass 101.
  • the display area can be further enlarged, so that it is easy to reduce the size and weight, and it is possible to avoid an increase in cost due to increasing the size of the plate glass 2.
  • the boundary between the surface of the plate glass 2 and the resin molded body 3 is flush, a design with a sense of unity can be achieved.
  • FIG. 3 is a cross-sectional view illustrating a cover glass for a display device according to the second embodiment.
  • the same part as 1st Embodiment uses the same code
  • the wraparound portion 3e which is a part of the resin molded body 3 wraps around the glass back surface (main surface opposite to the glass surface 2a) 2b of the plate glass 2.
  • the display area is narrower than 1st Embodiment, the adhesion area with respect to the plate glass 2 by the adhesive agent 5 is expanded, and the joint defect of the plate glass 2 and the resin molding 3 is expanded. Occurrence can be further prevented.
  • Such a 2nd embodiment can be suitably adopted also from a viewpoint of securing the adhesion area by adhesive 5, for example, when plate glass 2 is comparatively thin.
  • the cover glass for display apparatuses of the said embodiment has the part (namely, wraparound part 3e which overlaps with the glass plate 2 by planar view) located below the glass back surface 2b of the plate glass 2 of the resin molding 3.
  • it can also be used as a bonding member as a seal part with a display device.
  • a resin composition that serves as an adhesive layer is supplied to a region surrounded by the glass back surface 2b of the plate glass 2 and the resin molded body 3 (a region indicated as 5 in FIG. 3). In this state, the sheet glass 2 and the resin molded body 3 can be easily bonded to the display device by laminating with a display device to be protected, such as a display, and curing the resin composition to be an adhesive layer.
  • the atmosphere for curing the resin composition may be normal pressure or under reduced pressure.
  • the atmosphere is changed to an atmosphere of higher pressure (for example, atmospheric pressure) after that, the pressure is increased in the direction in which the plate glass 2 and the display device are in close contact with each other, and the seal is sealed. Since the volume of the void portion remaining in the sealed space surrounded by the portion is reduced according to the differential pressure of the atmosphere, the decompression space in the sealed space sealed by the plate glass 2, the display device, and the seal portion More preferably, the resin composition flows and the entire sealed space is uniformly filled with the resin composition.
  • the seal portion is a portion that comes into contact with the display device when bonded to the display device, the seal portion may be formed of a softer resin than the resin molded body 3 other than the seal portion.
  • the lower part of the resin molded body 3 is formed of a softer resin than the upper part.
  • FIG. 4 is a cross-sectional view illustrating a cover glass for a display device according to a third embodiment.
  • the same part as 1st Embodiment uses the same code
  • the seal portion 6 is formed with a different resin separately below the resin molded body 3. Also in this case, the seal portion 6 is preferably formed of a softer resin than the resin molded body 3.
  • Glass member sheet glass
  • optical members such as a glass lens other than plate glass
  • the plate glass 2 is demonstrated below, as a glass member, it is not limited to this.
  • the plate glass 2 which is a glass member has the glass surface 2a, the glass side surface 2c, and the glass back surface 2b, the shape will not be limited, but a rectangle is preferable.
  • the rectangle is substantially a rectangle and includes a shape in which the corners of the peripheral portion are cut off (for example, a corner is cut).
  • the example of the rectangular plate glass was shown as one Embodiment, it is not limited to this.
  • a deformed glass whose one side is processed into a corrugated shape may be used.
  • Curved plate glass can also be used.
  • the size of the plate glass 2 is not limited.
  • the size of the main surface (glass surface 2a and glass back surface 2b) is preferably 10 mm ⁇ 30 mm to 1000 mm ⁇ 1600 mm, and 30 mm ⁇ 50 mm to 800 mm ⁇ 1000 mm. Is more preferable.
  • the thickness of the plate glass 2 (the length of the glass side surface 2c) is not particularly limited, but is preferably 0.5 to 10 mm, and more preferably 0.7 to 3 mm.
  • silane coupling agent vinyl group-containing silane coupling agent, styryl group-containing silane coupling agent, amino group-containing silane coupling agent, epoxy group-containing silane coupling agent, methacryloyloxy group-containing silane coupling agent, acryloyloxy A group-containing silane coupling agent or the like is used, and as the primer, a primer obtained by diluting a urethane resin, an acrylic resin, a silicone resin, an epoxy resin, or the like with a solvent can be used.
  • the manufacturing method of the plate glass 2 is not specifically limited, It can manufacture by a conventionally well-known method. For example, it can be manufactured by melting a conventionally known glass raw material to form a molten glass, and then forming it into a plate shape by a float method, a fusion method, a slot down draw method, a redraw method, a pulling method or the like.
  • the glass composition of the plate glass 2 is not specifically limited.
  • the plate glass 2 may be composed of a plurality of plate glasses laminated by heat fusion or the like. In that case, the glass compositions of the respective plate glasses may be the same or different from each other.
  • the plate glass 2 is a tempered glass subjected to a chemical tempering treatment. In that case, it is necessary to select a glass containing an alkali component, and soda lime glass and alkali aluminosilicate glass are preferable.
  • the chemical strengthening treatment is performed on the untreated plate glass.
  • a chemically strengthened layer in which a compressive stress is generated by the chemical strengthening treatment is formed, while the inner portion not subjected to the chemical strengthening treatment is relatively tensile. Stress is generated and a tensile stress layer is formed.
  • the depth of the chemical strengthening layer is, for example, 2 to 50 ⁇ m, and the compressive stress thereof is, for example, 50 to 900 MPa. Further, the tensile stress of the tensile stress layer is, for example, 20 to 100 MPa.
  • the chemical strengthening treatment generally includes an alkali component (for example, an alkali metal ion such as Li ion or Na ion, hereinafter also referred to as “small-diameter alkali component”) present in the plate glass, and an alkali component having a larger ion radius.
  • This is a so-called ion exchange treatment that is substituted with (for example, an alkali metal ion such as K ion, hereinafter also referred to as “large-diameter alkali component”).
  • Specific examples of the chemical strengthening treatment method include a method in which plate glass is immersed in a molten potassium nitrate (KNO3) salt for 15 minutes to 5 hours.
  • KNO3 molten potassium nitrate
  • the chemical strengthening treatment may include a preheat treatment for preheating using a heater or the like as a pretreatment for immersion. Examples of the temperature of the chemical strengthening treatment (including preheat treatment) include 550 ° C. or lower.
  • the tempered glass to which the chemical strengthening process was performed is cut
  • the cutting method is not particularly limited, and a known cutting method is used.
  • a method of cutting after cutting a cutting line with a diamond cutter, a method of cutting with a dicing apparatus, a laser cutting, etc. Can be mentioned.
  • the plate glass 2 obtained by being cut after the chemical strengthening treatment has one tensile stress layer between two compressive stress layers by cutting the end portion, and a cut surface (that is, a glass side surface). From 2c), the tensile stress layer is exposed.
  • chemical strengthening treatment may be performed after cutting (including after chamfering).
  • ⁇ Glass decoration> Arbitrary decoration may be given to the glass surface 2a of the plate glass 2 (or the opposite glass back surface 2b).
  • the pattern of decoration can be implemented arbitrarily, the pattern which forms a frame of frame shape with black or white, for example is mentioned.
  • Various methods can be used as the decoration method, and examples thereof include screen printing, pad printing, and gravure offset printing.
  • ⁇ End treatment of glass sheet> When plate glass is used as the glass member, the plate glass may have a chamfered portion at a corner between the glass surface and the glass side surface. In this case, the chamfering may be C chamfering or R chamfering. Moreover, handling of plate glass can be facilitated by using plate glass that has been chamfered in this way.
  • C chamfering is preferable as a form of a chamfering part.
  • C chamfering is preferable.
  • the flatness of the seam part of plate glass and a resin molding can be improved more compared with R chamfering.
  • the plate glass which does not give such an end surface process can also be used for plate glass. That is, after cutting into a predetermined size, it is possible to use a plate glass whose side surface, which is the cut surface, is untreated. Thereby, the burden of the pretreatment of the plate glass to be used can be reduced.
  • the functional film 4 can be composed of a fluorine-containing organosilicon compound. That is, the functional film 4 is formed by forming a film using a fluorine-containing organosilicon compound on the glass surface 2 a of the plate glass 2.
  • An arbitrary functional film layer (not shown) such as an antireflection film may be provided between the functional film 4 and the plate glass 2.
  • Any fluorine-containing organosilicon compound can be used without particular limitation as long as it imparts functionality, water repellency and oil repellency.
  • a fluorine-containing organosilicon compound for example, a fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group can be preferably used.
  • the perfluoropolyether group is a divalent group having a structure in which perfluoroalkylene groups and etheric oxygen atoms are alternately bonded.
  • fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group include the following general formulas (I) to (V): The compound etc. which are represented by these are mentioned.
  • Rf is a linear perfluoroalkyl group having 1 to 16 carbon atoms (alkyl group such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, etc.), and X is , A hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms (for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, etc.), R1 is a hydrolyzable group (for example, amino group) An alkoxy group, etc.) or a halogen atom (for example, fluorine, chlorine, bromine, iodine, etc.), m is an integer of 1 to 50, preferably 1 to 30, n is an integer of 0 to 2, preferably 1 to 2, p Is an integer of 1 to 10, preferably 1 to 8.
  • Examples of the compound represented by the general formula (II) include n-trifluoro (1,1,2,2-tetrahydro) propylsilazane (n-CF 3 CH 2 CH 2 Si (NH 2 ) 3 ), n- Examples include heptafluoro (1,1,2,2-tetrahydro) pentylsilazane (nC 3 F 7 CH 2 CH 2 Si (NH 2 ) 3 ).
  • q ′ is an integer of 1 or more, preferably 1-20.
  • Examples of the compound represented by the general formula (III) include 2- (perfluorooctyl) ethyltrimethoxysilane (nC 8 F 17 CH 2 CH 2 Si (OCH 3 ) 3 ) and the like.
  • R f2 is — (OC 3 F 6 ) s — (OC 2 F 4 ) t — (OCF 2 ) u — (s, t and u are each independently an integer of 0 to 200)
  • R 2 and R 3 each independently represents a monovalent hydrocarbon group having 1 to 8 carbon atoms (for example, methyl group, ethyl group, n-propyl group). Group, isopropyl group, n-butyl group and the like.
  • X 2 and X 3 are independently hydrolyzable groups (for example, amino group, alkoxy group, acyloxy group, alkenyloxy group, isocyanate group and the like) or halogen atoms (for example, fluorine atom, chlorine atom, bromine atom, iodine)
  • D and e are independently an integer of 1 to 2
  • c and f are independently an integer of 1 to 5 (preferably 1 to 2)
  • a and b are independently 2 Or 3.
  • s + t + u is preferably 20 to 300, more preferably 25 to 100.
  • R 2 and R 3 are more preferably a methyl group, an ethyl group, or a butyl group.
  • the hydrolyzable group represented by X 2 or X 3 is more preferably an alkoxy group having 1 to 6 carbon atoms, particularly preferably a methoxy group or an ethoxy group. Further, a and b are each preferably 3.
  • v is an integer of 1 to 3
  • w, y and z are each independently an integer of 0 to 200
  • h is 1 or 2
  • i is an integer of 2 to 20.
  • X 4 is a hydrolyzable group
  • R 4 is a linear or branched hydrocarbon group having 1 to 22 carbon atoms
  • k is an integer of 0 to 2.
  • w + y + z is preferably 20 to 300, more preferably 25 to 100.
  • i is more preferably from 2 to 10.
  • X 4 is preferably an alkoxy group having 1 to 6 carbon atoms, more preferably a methoxy group or an ethoxy group.
  • R 4 is more preferably an alkyl group having 1 to 10 carbon atoms.
  • a fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group KP-801 (trade name, Shin-Etsu Chemical Co., Ltd.) KY178 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), KY185 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), OPT Tool (registered trademark) DSX and OPTOOL (trade name) (Registered trademark) AES (both trade names, manufactured by Daikin) and the like can be preferably used.
  • fluorine-containing organosilicon compounds are stored in a mixture with a solvent such as a fluorinated solvent in order to suppress deterioration due to reaction with moisture in the atmosphere. If the film is formed as it is, the durability of the obtained functional film 4 may be adversely affected. For this reason, in this invention, it is preferable to use the fluorine-containing organosilicon compound which performed the solvent removal process previously, or the fluorine-containing organosilicon compound which is not diluted with the solvent (namely, the solvent is not added).
  • the concentration of the solvent contained in the fluorine-containing organosilicon compound solution is preferably 1 mol% or less, more preferably 0.2 mol% or less.
  • a fluorine-containing organosilicon compound that does not contain a solvent.
  • the solvent used for storing the fluorine-containing organosilicon compound include perfluorohexane, metaxylene hexafluoride (C 6 H 4 (CF 3 ) 2 ), hydrofluoropolyether, HFE7200 / 7100 (trade name, manufactured by Sumitomo 3M Limited, HFE7200 is represented by C 4 F 9 C 2 H 5 , and HFE 7100 is represented by C 4 F 9 OCH 3 ).
  • the removal treatment of the solvent (solvent) from the fluorine-containing organosilicon compound solution containing the fluorine-based solvent can be performed, for example, by evacuating a container containing the fluorine-containing organosilicon compound solution.
  • the time for performing vacuum evacuation is not limited because it varies depending on the exhaust capacity of the exhaust line, the vacuum pump, etc., the amount of the solution, and the like.
  • a method for forming the functional film 4 in the present invention on the glass surface 2a of the plate glass 2 is not particularly limited, but it is preferable to form the functional film 4 by vacuum deposition using the above materials.
  • the solvent removal treatment is performed by evacuating the heating container at room temperature after introducing the fluorine-containing organosilicon compound solution into the heating container of the film forming apparatus for forming the functional film 4 and before raising the temperature. It can also be done. Further, the solvent can be removed beforehand by an evaporator or the like before being introduced into the heating container.
  • the fluorine-containing organosilicon compound having a small or no solvent content is likely to be deteriorated by contact with the atmosphere as compared with those containing a solvent.
  • storage containers for fluorine-containing organosilicon compounds with low (or no) solvent content should be replaced with an inert gas such as nitrogen and sealed, and exposed to the atmosphere when handled. It is preferable to shorten the contact time. Specifically, it is preferable to introduce the fluorine-containing organosilicon compound into the heating container of the film forming apparatus for forming the functional film 4 immediately after opening the storage container. And after introduction
  • inert gas such as nitrogen and a noble gas.
  • the storage container and the heating container are more preferably connected by a pipe with a valve so that the storage container (storage container) can be introduced into the heating container of the present manufacturing apparatus without coming into contact with the atmosphere. Then, after introducing the fluorine-containing organosilicon compound into the heating container and replacing the inside of the container with a vacuum or an inert gas, it is preferable to immediately start heating for film formation.
  • the functional film 4 may be formed by attaching a film or the like in addition to the film formation on the plate glass 2.
  • the thickness of the functional film 4 thus obtained is preferably 0.5 to 100 ⁇ m, more preferably 1 to 30 ⁇ m.
  • the adhesive 5 used in the present invention exhibits an adhesive force by being applied and cured on the glass side surface 2c of the plate glass 2 (in the case of the second embodiment, the edge of the glass back surface 2b). Although it contributes to joining with the resin molding 3, since the cover glass 1 for a display device is used for a display device such as a notebook PC, a tablet PC, or a smartphone, it does not have conductivity, and as much as possible. It is preferable to use a material having excellent insulating properties. Suitable examples of the material for the adhesive 5 include silicone-based, urethane-based, and epoxy-based adhesives having excellent adhesive strength, double-sided tapes, and the like. In this specification, the adhesive before curing and the adhesive after curing are simply referred to as “adhesive”.
  • the resin molded body 3 is bonded to the plate glass 2 via the adhesive 5, and the resin molded body 3 and the plate glass 2 are integrated to form the display device cover glass 1.
  • the material of the resin used as the resin molded body 3 since the display device cover glass 1 is used for a display device such as a notebook PC, a tablet PC, or a smartphone, it does not have electrical conductivity and is as excellent as possible in insulation.
  • a thermoplastic resin is preferably used.
  • the thermoplastic resin used in the present invention is not particularly limited as long as it can be integrally formed with the glass sheet 2 by melt molding.
  • thermoplastic polyester resins for example, polyethylene terephthalate resin, polybutylene terephthalate resin, etc.
  • liquid crystal polymers and crystalline resins (however, liquid crystal polymers are used from the viewpoint that they have excellent melt fluidity due to low shear stress, can be injected into the mold at low pressure, and are difficult to generate burrs. Is preferred).
  • the liquid crystal polymer (LCP) may be any liquid crystal polymer whose liquid crystal layer has a nematic, smectic or discotic structure, and is derived from an aromatic hydroxycarboxylic acid, an aromatic dicarboxylic acid, or an aromatic diol. It may have mainly repeating units.
  • a thermotropic liquid crystal polymer that can be melt-molded is preferable.
  • Rodrun LC-5000, LC-5000F, LC-5000H (trade names, manufactured by Unitika Ltd.), Zyder SRT-300, SRT -500, FSR-315, RC-210, FC-110, FC-120, FC-130 (trade names, made by Nippon Petrochemical Co., Ltd.), Econol E2000, Econol E6000 (trade names, made by Sumitomo Chemical Co., Ltd.) , EPE-240G30, Novacurate E322G30, E335G30 (trade names, manufactured by Mitsubishi Chemical), Vectra A950, Vectra A130, Vectra C130, Vectra A230, Vectra A410 (trade names, manufactured by Polyplastics), BIAC (Product) Name, Japan Gore-Tex), OCTA (product) , Manufactured by Dainippon Ink and Chemicals, Inc.), Zenite (trade name,
  • Crystalline resins include polyphenylene sulfide resin (PPS), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), aromatic polyester resin, polyether ether ketone resin (PEEK).
  • PPS polyphenylene sulfide resin
  • PET polyethylene terephthalate resin
  • PBT polybutylene terephthalate resin
  • PEEK polyether ether ketone resin
  • Polyether nitrile resin PEN
  • polyamide resin nylon resin
  • polyamide resin for example, polyamide 6, polyamide 66, polyamide 11, polyamide 12, polyamide 46, polyamide 620, polyamide 612, polyamide MDX6, etc.
  • POM polyoxymethylene resin
  • polyethylene resin eg, low density polyethylene, medium density polyethylene, high density polyethylene, etc.
  • polypropylene resin polystyrene resin (eg, syndiotactic polystyrene) Etc.)
  • polybutene resins polymethyl pentene resins, fluorocarbon resins, and polyimide resins.
  • polyphenylene sulfide resin As the crystalline resin (excluding the liquid crystal polymer), polyphenylene sulfide resin, polyethylene terephthalate resin, polybutylene terephthalate resin, aromatic polyester resin, polyamide resin, polyoxymethylene resin, and polyimide resin are preferable, and polyphenylene sulfide resin is more preferable. preferable.
  • the resin forming the resin molded body 3 is a resin composition in which the thermoplastic resin is used as a base resin and a compound containing a hydroxy group and / or an epoxy group in the molecule is blended. .
  • the adhesiveness between the resin molded body 3 and the plate glass 2 can be greatly improved.
  • the compound containing a hydroxy group and / or an epoxy group is preferably a compound that does not foam or decompose when heated and melted with a thermoplastic resin.
  • a thermoplastic resin As the compound containing a hydroxy group in the molecule, various alcohols, polyvinyl alcohol, modified polyvinyl alcohols and copolymers, polyvinyl butyral, ethylene glycol, glycerin, phenol, phenol resin, and these were modified with epichlorohydrin or the like.
  • Examples thereof include compounds, phenoxy resins, hydroxyethyl (meth) acrylate (HEMA), natural polymers (for example, cellulose, cellulose derivatives, starch, chitin, chitosan, cyclodextrin, trehalose, palatinose, maltose, and the like).
  • HEMA hydroxyethyl acrylate
  • natural polymers for example, cellulose, cellulose derivatives, starch, chitin, chitosan, cyclodextrin, trehalose, palatinose, maltose, and the like.
  • glycidyl alcohol, a glycidyl (meth) acrylate, an epoxy resin etc. are mentioned as a compound containing an epoxy group in a molecule
  • the compound containing a hydroxy group and / or an epoxy group is preferably a polymer compound containing a hydroxy group or an epoxy group, and more preferably a resin containing a
  • the resin containing a hydroxy group is preferably a phenoxy resin, and the resin containing an epoxy group is preferably an epoxy resin.
  • the phenoxy resin include a bisphenol A type phenoxy resin, a bisphenol F type phenoxy resin, and a copolymer type phenoxy resin of bisphenol A and bisphenol F.
  • the mass average molecular weight (polystyrene conversion value by GPC measurement) of the phenoxy resin is preferably 10,000 to 200,000, and more preferably 20,000 to 100,000.
  • As the phenoxy resin a commercially available product can be selected.
  • PKHC, PKHH, PKHJ, PKHB, PKFE, PKHP (trade name, manufactured by InChem Corp.), YP-50, YP-50S, YP-55. , YP-70, FX239 (trade name, manufactured by Toto Kasei), Epicoat E1256, Epicoat E4250, Epicoat E4275 (trade name, manufactured by Union Carbide), UCAR, PKHC, PKHH (trade name, manufactured by Toto Kasei) ) Etc.
  • These may be used alone or in combination of two or more.
  • the hydroxy group content in the polymer compound having a hydroxy group is preferably from 0.01 to 23 mol / kg, more preferably from 0.1 to 15 mol / kg, and more preferably from 1 to 10 mol / kg. More preferred are molecules.
  • the particularly preferable range of the hydroxy group content is 3 to 7 mol / kg polymer (resin), and the most preferable range is 3 to 5 mol / kg polymer (resin). .
  • Epoxy resins include bisphenol A type epoxy resins, bisphenol F type epoxy resins, bisphenol S type epoxy resins and other bisphenol type epoxy resins; phenol novolac type epoxy resins, o-cresol novolak type epoxy resins, biphenyl novolak type epoxy resins, etc. Novolac type epoxy resins; biphenyl type epoxy resins, naphthalene type epoxy resins, triphenylmethane type epoxy resins, dicyclopentadiene type epoxy resins, alicyclic epoxy resins and glycidyl ether type epoxy resins, glycidyl ester type epoxy resins, etc. An epoxy resin; etc. are illustrated. These may be used alone or in combination of two or more.
  • the epoxy resin as with the phenoxy resin, those having various physical properties are commercially available, and those suitable for the purpose can be selected and used suitably.
  • the mass average molecular weight (polystyrene conversion value by GPC measurement) of the epoxy resin is preferably 700 to 200,000, and more preferably 900 to 100,000.
  • the content of the epoxy group in the polymer compound having an epoxy group is preferably 0.01 to 10 mol / kg polymer, more preferably 0.1 to 8 mol / kg polymer.
  • the phenoxy resin and the epoxy resin may be used alone or in combination.
  • the compound instead of preparing a resin composition in which a compound containing a hydroxy group and / or an epoxy group is blended with a thermoplastic resin, the compound is previously grafted to the thermoplastic resin or modified with the compound. A hydroxy group and / or an epoxy group may be introduced into the thermoplastic resin.
  • the compounding amount of the compound containing a hydroxy group and / or the compound containing an epoxy group in the molecule is preferably 1 to 90 parts by weight with respect to 100 parts by weight of the thermoplastic resin. Part by mass is more preferable.
  • the compounding amount of the above compound is too small, sufficient adhesion between the resin composition and the plate glass 2 may not be obtained.
  • the compounding amount is too large, the basic resin of the thermoplastic resin as the base resin may not be obtained. The properties are hindered, and it may be difficult to obtain a high-strength resin molded body 3 itself, or the adhesiveness may rather deteriorate. If the blending amount is within this range, the resin composition and the plate glass 2 The resin molded body 3 has excellent strength.
  • a filler can be mix
  • the fibrous filler include inorganic fibers such as glass fibers, carbon fibers, potassium titanate fibers, aluminum borate fibers, and metal fibers; organic fibers such as aramid fibers, vinylon fibers, and hemp fibers.
  • fillers having various shapes such as powder, sphere, break, needle, and plate include silica, alumina, talc, clay, kaolin, aluminum hydroxide, magnesium hydroxide, and calcium carbonate.
  • the plate-like filler include mica and glass break.
  • the hollow filler include shirasu balloons, glass balloons, and various resin balloons. These fillers can be used alone or in combination of two or more.
  • the resin composition of the present invention further includes a colorant, a pigment, a heat stabilizer, an antioxidant, a stabilizer, an ultraviolet absorber, a compatibilizer, a dispersant, and a lubricant without departing from the object of the present invention.
  • a colorant e.g., a colorant, a pigment, a heat stabilizer, an antioxidant, a stabilizer, an ultraviolet absorber, a compatibilizer, a dispersant, and a lubricant without departing from the object of the present invention.
  • Mold release agents, and other additives can be blended.
  • a small amount of other thermoplastic resins can be blended.
  • the resin composition in the present invention can be prepared by various known methods. For example, a predetermined proportion of a thermoplastic resin, a compound containing a hydroxyl group and / or an epoxy group in the molecule, and, if necessary, a component such as a filler are premixed with a V-type blender or a Henschel mixer, and then extruded. The method of melt-kneading with a machine is mentioned. Also, each component can be individually supplied to an extruder and melt kneaded.
  • ⁇ Resin shape> With respect to the molded shape of the resin to be the resin molded body 3, it is possible to perform processing necessary for the applied device by designing the mold shape. For example, holes can be made for speakers, switch buttons, and terminals, a hook structure for assembling the main body side and the cover glass can be provided, or a beam structure for reinforcing the strength as a housing can be incorporated on the back side.
  • the surface of the resin to be the resin molded body 3 may be optionally decorated depending on the application and design. For example, by embossing the mold, the resin surface can be embossed.
  • an in-mold transfer foil may be inserted on the decorative surface side in the mold during resin molding, and decoration may be performed simultaneously with resin molding.
  • it can be painted by various printing methods after molding.
  • a method capable of three-dimensional decoration is preferable.
  • arbitrary decoration can be performed by inkjet printing, pad printing, screen printing, gravure offset printing, or the like.
  • the decorating layer of the resin surface and the glass surface of plate glass can be made into the same surface, it is preferable.
  • a method for producing a glass resin integrated molded product described below can be preferably cited. Therefore, in the following, first, a manufacturing apparatus for a glass resin integrated molded product used in a method for manufacturing a glass resin integrated molded product will be described.
  • FIG. 7 is a front cross-sectional view showing an embodiment of a manufacturing apparatus for a glass resin integrated molded product.
  • a glass resin integrated molded product manufacturing apparatus (glass resin integrated molded product manufacturing apparatus) 10 according to the present embodiment includes a mold 12, a mold clamping device (not shown) of the mold 12, An injection device (not shown) for injecting resin into the cavity space 14 formed by the clamped mold 12 and a control device (not shown) for overall control of the operation of the entire device are configured.
  • the mold 12 includes a movable mold 16 as a first mold disposed on the upper side in the vertical direction, and a fixed mold 18 as a second mold disposed on the lower side in the vertical direction. Configured.
  • the movable-side mold 16 has a nested structure, and a movable-side cavity block 20 that forms a space in which the resin material of the resin molded body 3 is injected, a movable-side mold 22 to which the movable-side cavity block 20 is attached, It is configured with.
  • the movable-side cavity block 20 has a rectangular parallelepiped shape, and includes a movable-side concave portion 20 ⁇ / b> A on a surface facing the fixed-side mold 18 (surface on the lower side in the vertical direction). 20 A of this movable side recessed part has a shape corresponding to the shape of the upper side (glass surface 2a side) when the cover glass 1 for display apparatuses which is a glass resin integrated molded product is divided into 2 parts up and down.
  • the plate glass 2 is mounted on the plate glass mounting surface 28A1 mentioned later.
  • the functional film 4 may or may not be formed in advance on the glass surface 2 a of the plate glass 2, but the shape of the movable side recess 20 ⁇ / b> A differs depending on the presence or absence of the functional film 4. That is, for example, when the plate glass 2 on which the functional film 4 is formed in advance is used, the shape of the movable side recess 20A is such that the surface in contact with the film surface 4a of the functional film 4 and the surface in contact with the resin surface 3a of the resin molded body 3 Is formed by a series of flat surfaces.
  • the shape of the movable recess 20A is such that the surface in contact with the glass surface 2a is thicker than the surface in contact with the resin surface 3a. Make the shape protruding by that much.
  • membrane surface 4a and the resin surface 3a are the same surface is obtained.
  • the movable-side mold 22 includes a movable-side cavity block mounting portion 22A for mounting the movable-side cavity block 20 on a surface facing the fixed-side mold 18 (surface on the lower side in the vertical direction).
  • the movable cavity block mounting portion 22A is configured as a recess into which the movable cavity block 20 can be fitted.
  • the movable-side cavity block 20 is mounted on the movable-side mold 22 by fitting into the movable-side cavity block mounting portion 22A and fixing the movable-side cavity block 20 to the movable-side mold 22 using fastening means (not shown).
  • the fixed mold 18 has a nested structure, and a fixed cavity block 24 that forms a space in which the resin material of the resin molded body 3 is injected, and the fixed cavity block 24 includes And a fixed mold 26 to be attached.
  • the fixed-side cavity block 24 has a rectangular parallelepiped shape, and includes a fixed-side recess 24 ⁇ / b> A on a surface facing the movable-side mold 16.
  • the fixed-side recess 24A has a shape corresponding to the shape on the lower side (the glass back surface 2b side) when the display device cover glass 1 which is a glass resin integrated molded product is divided into two vertically.
  • the fixed-side cavity block 24 is configured by nesting a plate glass holding block 28 (first movable portion) that holds the plate glass 2 and a cavity space forming block 30 that is a part that forms the cavity space 14. The This point will be described later.
  • the fixed-side mold 26 includes a fixed-side cavity block mounting portion 26A for mounting the fixed-side cavity block 24 on a surface facing the movable mold 16 (surface on the upper side in the vertical direction).
  • the fixed-side cavity block mounting portion 26A is configured as a recess into which the fixed-side cavity block 24 can be fitted.
  • the fixed-side cavity block 24 is mounted on the fixed-side mold 26 by fitting into the fixed-side cavity block mounting portion 26A.
  • the fixed-side cavity block 24 is configured by combining the plate glass holding block 28 and the cavity space forming block 30.
  • the plate glass holding block 28 includes a plate glass holding portion 28A and a base portion 28B.
  • the plate glass holding portion (glass member holding portion) 28A has an outer shape corresponding to the shape of the plate glass 2, and includes a plate glass placement surface 28A1 for placing the plate glass 2 on the upper side in the vertical direction.
  • the plate glass placement surface 28A1 is a flat surface.
  • the plate glass holding portion 28A includes a guide convex portion 28A2 on the lower side in the vertical direction.
  • the base portion 28B functions as a guide portion of the plate glass holding portion 28A, and includes a guide concave portion 28B1 into which the guide convex portion 28A2 of the plate glass holding portion 28A is fitted.
  • the plate glass holding portion 28A is supported so as to be movable in a direction along the mold clamping direction A of the mold 12 indicated by an arrow A in FIG. 7 by fitting the guide convex portion 28A2 to the guide concave portion 28B1.
  • the base portion 28B includes a plurality of glass holding pressure adjusting cylinders (glass holding pressure adjusting cylinders) 32 as glass holding pressure adjusting means. Each glass holding pressure adjusting cylinder 32 operates in synchronization, and moves the plate glass holding portion 28 ⁇ / b> A in a direction along the mold clamping direction of the mold 12.
  • the cavity space forming block 30 is configured by combining a hollow outer block 30A and a hollow inner block (second movable portion) 30B in a nested manner.
  • the outer block 30A has a cylindrical shape with a rectangular cross section, and the inner block 30B is slidably disposed in the hollow portion.
  • the cavity space forming block 30 is placed on the bottom surface of the fixed-side cavity block mounting portion 26A.
  • the outer block 30A is fixed.
  • the base 28B is placed on the bottom surface of the fixed-side cavity block mounting portion 26A. Accordingly, the base portion 28B is fixed, and the glass plate holding portion 28A can be moved using the glass holding pressure adjusting cylinder 32.
  • the stationary mold 26 is provided with a plurality of resin pressurizing cylinders 34 as resin pressurizing means.
  • Each resin pressurizing cylinder 34 operates in synchronization, and moves the inner block 30B of the cavity space forming block 30 in a direction along the mold clamping direction. Thereby, the volume of the cavity space 14 can be varied, and the resin filled in the cavity space 14 can be pressurized.
  • the inner block 30B is positioned at a “resin injection position” set at the time of resin injection, and is driven by the resin pressurizing cylinder 34 after the resin injection to set a “resin pressurization position”. To "".
  • This resin pressurization position is set to a position vertically above the resin injection position, and is set to a position where the volume of the cavity space 14 is reduced by a predetermined amount.
  • the mold 12 is configured as described above.
  • the plate glass 2 is placed on the plate glass placement surface 28 ⁇ / b> A ⁇ b> 1 and the mold 12 is clamped, the plate glass 2 is sandwiched between the fixed side mold 18 and the movable side mold 16.
  • a cavity space 14 is formed around the plate glass 2 in cooperation with the pressurization of the resin.
  • the plate glass holding portion 28 ⁇ / b> A of the plate glass holding block 28 on which the plate glass 2 is placed is provided to be movable independently of the cavity space forming block 30 by the glass holding pressure adjusting cylinder 32. For this reason, the pressure which acts on the plate glass 2 can be adjusted independently by moving the plate glass holding
  • the cavity space forming block 30 that forms the cavity space 14 is provided such that the inner block 30 ⁇ / b> B can be moved by the resin pressurizing cylinder 34. Therefore, the resin filled in the cavity space 14 can be pressurized by moving the cavity space forming block 30 by the resin pressurizing cylinder 34.
  • the resin is injected from the movable mold 16.
  • the movable mold 16 is provided with a sprue 36 and a gate 38 which are resin flow paths.
  • the resin injected into the sprue 36 through the injection device is injected into the cavity space 14 from the sprue 36 through the gate 38.
  • a mold clamping device (not shown) opens and closes the mold 12 by moving the movable mold 16 forward and backward with respect to the fixed mold 18.
  • the mold 12 is clamped by moving the movable mold 16 in a direction approaching the fixed mold 18, and the mold is moved by moving the movable mold 16 in a direction away from the fixed mold 18. 12 is opened.
  • the injection device (not shown) functions as a resin injection means, and injects resin into the cavity space 14 via the sprue 36 of the mold 12.
  • a control device controls the overall operation of the device. That is, the mold clamping device is controlled to control the opening and closing of the mold 12.
  • the injection device is controlled to control the injection of the resin.
  • the control device controls the resin pressurization cylinder 34 to control the pressurization of the resin filled in the cavity space 14 (that is, functions as a resin pressurization cylinder control means).
  • the control device controls the glass holding pressure adjusting cylinder 32 in cooperation with the resin pressurization by the resin pressurizing cylinder 34 to control the glass holding pressure acting on the plate glass 2 (that is, the glass holding pressure control). And function as cylinder control means for adjusting the glass holding pressure).
  • FIGS. 8A to 8F are diagrams showing a procedure for manufacturing the cover glass 1 for a display device, which is a glass resin integrated molded product, using the glass resin integrated molded product manufacturing apparatus 10.
  • the mold 12 in the initial state, the mold 12 is opened, and the movable mold 16 is positioned at a predetermined height from the fixed mold 18. Further, in this state, the inner block 30B provided in the fixed side mold 18 is located at the resin injection position.
  • the plate glass 2 is placed in the mold 12.
  • the plate glass 2 is placed on the plate glass placement surface 28 ⁇ / b> A ⁇ b> 1 of the plate glass holding block 28 provided in the fixed side mold 18 and placed on the mold 12.
  • the adhesive 5 is previously applied to the glass side surface 2c of the plate glass 2 (in the case of the second embodiment, it is also applied to the edge of the glass back surface 2b of the plate glass plate 2). And the plate glass 2 which has apply
  • the plate glass 2 used here even if it is the plate glass 2 in which the functional film 4 was previously formed on the glass surface 2a, the plate glass 2 in which the functional film 4 was not formed may be sufficient.
  • the shape of the movable side recess 20 ⁇ / b> A is varied.
  • the functional film 4 is formed in advance on the glass surface 2a of the plate glass 2, the functional film 4 is formed by, for example, forming a film on the glass surface 2a or pasting a film by the method described above. Keep it.
  • the movable side mold 16 is moved toward the fixed side mold 18 by a mold clamping device (not shown), and the mold 12 is clamped. Accordingly, the plate glass 2 is sandwiched between the fixed mold 18 and the movable mold 16, and a cavity space 14 is formed around the plate glass 2.
  • the glass holding pressure adjusting cylinder 32 is controlled so that the pressure acting on the plate glass 2 becomes a predetermined pressure, and the position of the plate glass holding portion 28A is controlled.
  • a resin is injected into the cavity space 14 by an injection device (not shown), and the cavity space 14 is filled with the resin.
  • the inner block 30B is moved to the resin pressurization position by the resin pressurizing cylinder 34, and the resin filled in the cavity space 14 is pressurized with a predetermined resin compression pressure. Press molding. Thereby, it is possible to prevent sink marks from occurring in the resin molded body 3.
  • the film surface 4a and the resin surface 3a are not produced at the joint between the film surface 4a and the resin surface 3a without causing a step or a gap.
  • the resin molded body 3 can be integrally formed around the plate glass 2 with an adhesive 5 interposed therebetween. Further, when the plate glass 2 on which the functional film 4 is not formed is used, the glass surface 2a is recessed from the resin main surface 3a by the thickness of the functional film 4 to be formed later, around the plate glass 2.
  • the resin molded body 3 can be integrally molded.
  • the position of the plate glass holding portion 28A is controlled by the glass holding pressure adjusting cylinder 32 in conjunction with the pressurization of the resin, and the pressure acting on the plate glass 2 is controlled to be within the specified range.
  • the upper limit within the specified range is set to a pressure lower than the pressure at which the glass plate 2 sandwiched between the fixed mold 18 and the movable mold 16 is cracked, and the lower limit of the specified range is the fixed side.
  • the pressure is set to be higher than the pressure at which positional deviation occurs in the glass sheet 2 sandwiched between the mold 18 and the movable mold 16.
  • the glass resin integrated molded product taken out becomes the display device cover glass 1 as it is.
  • the functional film 4 is formed on the glass surface 2a that is recessed from the resin main surface 3a to form the cover glass 1 for a display device.
  • a film may be formed or a film may be attached by the method described above.
  • the alignment can be used as a reference.
  • the fluorine-containing organosilicon compound solution described above may be poured onto the glass surface 2a that is a recess with respect to the surrounding resin main surface 3a.
  • the resin molded body 3 can be made to function as a mold for pouring, compared with the case where the plate glass 2 on which the functional film 4 is formed is used.
  • the workability when forming the functional film 4 is improved.
  • FIG. 9 is a conceptual diagram illustrating an example of pressure control of a sheet glass during resin pressurization.
  • a broken line L1 indicated by a solid line indicates a transition of pressure acting on the resin injected into the cavity space 14.
  • the broken line L2 shown as a continuous line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is carried out.
  • T1 is a time when the injection of the resin into the cavity space 14 is started
  • T2 is a time when the injection of the resin into the cavity space 14 is completed
  • T3 starts the pressurization of the resin.
  • the time, T4, indicates the time when the pressurization is completed
  • T5 indicates the time when the mold is opened.
  • a region PB indicated by oblique lines with a narrow interval indicates a pressure region where cracks occur in the plate glass 2
  • a region PS indicated by oblique lines with a wide interval indicates a pressure region where positional deviation occurs in the plate glass 2.
  • the displacement occurs when the pressure becomes lower than the pressure acting on the resin at the completion of injection (that is, the pressure acting on the resin at time T2).
  • the pressure acting on the plate glass 2 is controlled so as not to fall within the range of the region PB and the region PS, including when the resin is pressurized. In the example shown in FIG. 9, it controls so that the plate glass 2 is also pressurized at the time of resin pressurization.
  • the range is a pressure range in which the plate glass 2 is not cracked (that is, a range that does not enter the region PB).
  • the broken line L3 shown with a broken line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is not carried out. If the pressure acting on the plate glass 2 is not controlled when the resin is pressurized, the pressure acting on the plate glass 2 increases as the resin is pressurized, and the plate glass 2 is cracked.
  • FIG. 10 is a conceptual diagram showing another example of pressure control of the plate glass during resin pressurization.
  • a broken line L4 indicated by a solid line indicates a transition of pressure acting on the resin injected into the cavity space.
  • the broken line L5 shown with a continuous line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is carried out.
  • control is performed so that the pressure acting on the plate glass 2 during resin pressurization is reduced.
  • the range to be reduced is a pressure range in which positional deviation does not occur (that is, a range that does not enter the region PS).
  • the broken line L6 shown with a broken line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is not carried out. If the pressure acting on the plate glass 2 is not controlled when the resin is pressurized, the pressure acting on the plate glass 2 increases as the resin is pressurized, and the plate glass 2 is cracked.
  • a mode in which the pressure is increased and a mode in which the pressure is lowered there are two modes of controlling the pressure acting on the plate glass 2 when the resin is pressurized, that is, a mode in which the pressure is increased and a mode in which the pressure is lowered.
  • Which mode is selected is determined in consideration of the viscosity of the resin to be used. That is, if the viscosity of the resin used is high, a high pressure is already applied to the plate glass 2 before the resin pressurization. In such a case, the pressure applied to the plate glass 2 during the resin pressurization is controlled to decrease. To do. Thereby, it can prevent effectively that the plate glass 2 is broken.
  • FIG. 11 is a front cross-sectional view showing a modification of the glass resin integrated molded product manufacturing apparatus.
  • the glass resin integrated molded product manufacturing apparatus 10 has different glass holding pressure adjusting means and resin pressing means. Therefore, only the configuration of the glass holding pressure adjusting means and the resin pressurizing means will be described here.
  • the base portion 28 ⁇ / b> B of the plate glass holding block 28 is provided with a plurality of glass holding pressure adjusting springs 62 as glass holding pressure adjusting means.
  • the glass holding pressure adjusting spring 62 biases the plate glass holding portion 28A toward the movable mold 16 (that is, biases vertically upward).
  • the stationary mold 26 is provided with a plurality of resin pressing springs 64 as resin pressing means.
  • Each resin pressurizing spring 64 urges the outer block 30A of the cavity space forming block 30 toward the movable mold 16 (that is, urges vertically upward).
  • the outer block 30 ⁇ / b> A is biased by the resin pressurizing spring 64, the outer block 30 ⁇ / b> A contacts the movable cavity block 20 of the movable mold 16. Thereby, the cavity space 14 is formed around the plate glass 2.
  • resin is injected into the cavity space 14 by an injection device (not shown), and the cavity space 14 is filled with resin.
  • the movable mold 16 is moved toward the fixed mold 18. That is, the mold 12 is further clamped. Thereby, the clearance gap formed between the movable side mold 22 and the stationary side mold 26 at the time of previous mold clamping is closed.
  • the outer block 30A When the mold 12 is further clamped, the outer block 30A is pushed by the movable mold 16 against the urging force of the resin pressurizing spring 64 and moves downward in the vertical direction. As a result, the inner block 30B is relatively extended to the cavity space 14, and the volume of the cavity space 14 decreases. Thereby, the resin filled in the cavity space 14 is pressurized.
  • the resin when the resin is pressurized in this way, a high pressure acts on the plate glass 2, but the plate glass holding portion 28 ⁇ / b> A that holds the plate glass 2 is supported movably while being urged by the glass holding pressure adjusting spring 62. Therefore, the pressure which acts at the time of pressurization can be released. Thereby, it can prevent that a crack arises in the plate glass 2.
  • the glass holding pressure adjusting spring 62 serves to release the pressure acting on the plate glass 2 when the resin is pressed, and therefore the spring force is larger than the spring force of the resin pressing spring 64.
  • the spring force is set weakly. Further, if the spring force is too weak, a positional deviation occurs in the plate glass 2, so that it is set to a spring force capable of applying a pressure that does not cause a positional deviation in the plate glass 2.
  • the pressurization is continuously performed for a predetermined time, and then the mold 12 is opened, and the glass resin integrated molded product to be the display device cover glass 1 is taken out. The manufacturing of the glass resin integrated molded product is completed through the series of steps described above.
  • the resin pressurizing means for pressurizing the resin and the glass holding pressure adjusting means for adjusting the pressure acting on the plate glass 2 can be constituted by the spring, and the same operational effects can be achieved.
  • both the resin pressurizing means and the glass holding pressure adjusting means are constituted by springs, but either one may be constituted by a cylinder.
  • the resin pressurizing means and the glass holding pressure adjusting means can also be constituted by, for example, a motor and a moving mechanism using a feed screw.
  • the type of the spring is not particularly limited.
  • a coil spring or a disc spring can be used. When a disc spring is used, the spring force can be adjusted by adjusting the number of disc springs.
  • the cover glass 1 for a display device is suppressed from causing a bonding defect between the plate glass 2 and the resin molded body 3 and can reduce the risk of breakage. It can also be suitably used as a cover glass for devices, specifically notebook PCs, tablet PCs, smartphones, and other various display devices.
  • the cover glass for display apparatuses which can suppress the joint defect of plate glass and a resin molding can be provided.
  • This cover glass is a cover glass of display apparatuses, such as a notebook PC, a tablet PC, a smart phone, and other mobile devices.
  • a cover glass of display apparatuses such as a notebook PC, a tablet PC, a smart phone, and other mobile devices.
  • SYMBOLS 1 Cover glass for display apparatuses 2 ... Plate glass (glass member) 2a ... glass surface 2b ... glass back surface 2c ... glass side surface 3 ... resin molded body 3a ... resin surface 3d ... resin inner side surface 3e ... wraparound part 4 ... functional film 4a ... film surface 5 ... adhesive 6 ... seal part 10 ... glass resin Integral molded product manufacturing apparatus 12 ... Mold 14 ... Cavity space 16 ... Movable side mold 18 ... Fixed side mold 20 ... Movable side cavity block 20A ... Movable side recess 22 ... Movable side mold 22A ... Movable side cavity block mounting part 24 ... Fixed side cavity block 24A ... Fixed side recess 26 ...
  • Fixed side mold 26A Fixed side cavity block mounting part 28A ... Plate glass holding block (first movable part) 28A1 ... Plate glass mounting surface 28A2 ... Guide convex part 28B ... Base part 28B1 ... Guide concave part 30 ... Cavity space forming block 30A ... Outer block 30B ... Inner block (second movable part) 32 ... Glass holding pressure adjusting cylinder 34 ... Resin pressurizing cylinder 36 ... Sprue 38 ... Gate 62 ... Glass holding pressure adjusting spring 64 ... Resin pressurizing spring 101 ... Conventional display cover glass 102 ... Plate glass 102a ... Glass surface 102c ... Glass side surface 103 ... Resin molded body 104 ... Functional film 105 ... Adhesive 141 ... Interface 151 ... Indentation

Abstract

Provided is a cover glass for display devices, which is suppressed in bonding defects between a glass plate and a resin molded body. This cover glass for display devices is provided with: a glass member (2) that has a glass surface (2a) on the side of a user of a display device and a glass lateral surface (2c) continued to the glass surface; a functional film (4) that is arranged on the glass surface; and a resin molded body (3) that is arranged around the glass member. The film surface (4a) of the functional film and a resin surface (3a) of the resin molded body are on the same plane, and an adhesive (5) is provided between the glass lateral surface and the resin molded body.

Description

表示装置用カバーガラスCover glass for display device
　本発明は、表示装置用カバーガラスに関する。 The present invention relates to a cover glass for a display device.
　従来、例えば、ガラス板の周囲に樹脂成形体が配置されたものが知られている（例えば、特許文献１を参照）。 Conventionally, for example, one in which a resin molded body is arranged around a glass plate is known (see, for example, Patent Document 1).
　図５は、従来の表示装置用カバーガラスを示す斜視図である。図６は、図５のＡ－Ａ線断面図である。従来の表示装置用カバーガラス１０１においては、板ガラス１０２の周囲に樹脂成形体１０３が配置されている。
　板ガラス１０２は、表示装置を使用するユーザ（図示せず）と対面するガラス表面１０２ａと、ガラス表面１０２ａに連なるガラス側面１０２ｃとを有し、ガラス表面１０２ａ上には、例えばフッ素含有有機ケイ素化合物により構成される機能膜１０４が配置されている。
　樹脂成形体１０３は、板ガラス１０２の外縁を挟み込む形状に成形されており、接着剤１０５を介して、板ガラス１０２の外縁を覆っている。 FIG. 5 is a perspective view showing a conventional cover glass for a display device. 6 is a cross-sectional view taken along line AA in FIG. In the conventional display device cover glass 101, a resin molded body 103 is disposed around the plate glass 102.
The plate glass 102 has a glass surface 102a facing a user (not shown) who uses the display device, and a glass side surface 102c continuous with the glass surface 102a. On the glass surface 102a, for example, a fluorine-containing organosilicon compound is used. A functional film 104 to be configured is disposed.
The resin molded body 103 is shaped to sandwich the outer edge of the plate glass 102, and covers the outer edge of the plate glass 102 with an adhesive 105 interposed therebetween.
特開２００１－３３４８２４号公報JP 2001-334824 A
　図６に示すように、従来の表示装置用カバーガラス１０１においては、樹脂成形体１０３が、機能膜１０４を有する板ガラス１０２の外縁を、接着剤１０５を介して覆っているため、機能膜１０４と接着剤１０５との界面１４１が存在する。
　ところで、機能膜１０４を一般的に構成するフッ素含有有機ケイ素化合物は、機能性、撥水性、撥油性等を付与するものである。このため、従来の表示装置用カバーガラス１０１を用いた表示装置において、界面１４１における接着剤１０５の接着強度が経年劣化して、板ガラス１０２と樹脂成形体１０３との接合に欠陥が生じ、表示装置用カバーガラス１０１の破損につながるおそれがある。また、他の機能膜であっても板ガラス１０２と樹脂成形体１０３との密着性に悪影響を及ぼす可能性がある。 As shown in FIG. 6, in the conventional cover glass 101 for a display device, the resin molded body 103 covers the outer edge of the plate glass 102 having the functional film 104 with an adhesive 105. There is an interface 141 with the adhesive 105.
By the way, the fluorine-containing organosilicon compound that generally constitutes the functional film 104 imparts functionality, water repellency, oil repellency, and the like. For this reason, in the conventional display device using the cover glass 101 for a display device, the adhesive strength of the adhesive 105 at the interface 141 deteriorates over time, and defects occur in the bonding between the plate glass 102 and the resin molded body 103. The cover glass 101 may be damaged. Further, even other functional films may adversely affect the adhesion between the plate glass 102 and the resin molded body 103.
　本発明は、以上の点を鑑みてなされたものであって、板ガラスと樹脂成形体との接合欠陥を抑制できる表示装置用カバーガラスを提供することを目的とする。 The present invention has been made in view of the above points, and an object thereof is to provide a cover glass for a display device that can suppress a bonding defect between a plate glass and a resin molded body.
　本発明の一態様の表示装置用カバーガラスは、表示装置を使用するユーザ側のガラス表面と、上記ガラス表面に連なるガラス側面とを有するガラス部材と、上記ガラス表面上に設けられた機能膜と、上記ガラス部材の周囲に設けられた樹脂成形体と、を備え、上記機能膜の膜表面と上記樹脂成形体の樹脂表面とが面一であり、上記ガラス側面と上記樹脂成形体との間に接着剤が設けられている、表示装置用カバーガラスである。
　また、本発明の一態様の表示装置用カバーガラスは、前記樹脂成形体を成形する金型にガラス部材を配置し、前記金型を型締めして、前記金型で前記ガラス部材を挟持する工程と、前記金型を型締めすることにより前記ガラス部材の周囲の少なくとも一部に形成されるキャビティ空間に樹脂を注入して、前記キャビティ空間内に前記樹脂を充填する工程と、前記キャビティ空間内に充填した樹脂を所定の樹脂圧縮圧力で加圧しながら樹脂加圧成形する工程と、型締めした前記金型を開いて、ガラス樹脂一体成形品を取り出す工程と、を備え、前記樹脂加圧成形する工程において、前記樹脂の加圧に連携して前記ガラス部材に作用するガラス保持圧力が規定範囲内に収まるように、前記ガラス保持圧力を調整するガラス樹脂一体成形品の製造方法によって得られる、表示装置用カバーガラスである。 The cover glass for a display device according to one embodiment of the present invention includes a glass member having a glass surface on the user side using the display device, a glass side surface continuous with the glass surface, and a functional film provided on the glass surface. A resin molded body provided around the glass member, the film surface of the functional film and the resin surface of the resin molded body are flush with each other, and between the glass side surface and the resin molded body It is the cover glass for display apparatuses in which the adhesive agent is provided.
In the cover glass for a display device of one embodiment of the present invention, a glass member is disposed in a mold for molding the resin molded body, the mold is clamped, and the glass member is sandwiched between the molds. Filling the cavity space with a resin by injecting a resin into a cavity space formed in at least a part of the periphery of the glass member by clamping the mold; and the cavity space Resin press molding while pressurizing the resin filled in with a predetermined resin compression pressure, and opening the mold clamped and taking out a glass resin integrated molded product, and the resin pressurization In the molding step, a method for producing a glass resin integrated molded article in which the glass holding pressure is adjusted so that the glass holding pressure acting on the glass member in conjunction with the pressurization of the resin is within a specified range. The resulting, a cover glass for a display device.
　本発明によれば、板ガラスと樹脂成形体との接合欠陥を抑制できる表示装置用カバーガラスを提供できる。 According to the present invention, it is possible to provide a cover glass for a display device that can suppress a bonding defect between a plate glass and a resin molded body.
第１の実施形態の表示装置用カバーガラスを示す斜視図である。It is a perspective view which shows the cover glass for display apparatuses of 1st Embodiment. 図１のＡ－Ａ線断面図である。FIG. 2 is a sectional view taken along line AA in FIG. 1. 第２の実施形態の表示装置用カバーガラスを示す断面図である。It is sectional drawing which shows the cover glass for display apparatuses of 2nd Embodiment. 第３の実施形態の表示装置用カバーガラスを示す断面図である。It is sectional drawing which shows the cover glass for display apparatuses of 3rd Embodiment. 従来の表示装置用カバーガラスを示す斜視図である。It is a perspective view which shows the conventional cover glass for display apparatuses. 図５のＡ－Ａ線断面図である。FIG. 6 is a cross-sectional view taken along line AA in FIG. ガラス樹脂一体成形品の製造装置の一実施形態を示す正面断面図である。It is front sectional drawing which shows one Embodiment of the manufacturing apparatus of a glass resin integrated molded product. ガラス樹脂一体成形品製造装置を用いたガラス樹脂一体成形品の製造手順を示す図である。It is a figure which shows the manufacture procedure of the glass resin integrated molded product using a glass resin integrated molded product manufacturing apparatus. 樹脂加圧時における板ガラスの圧力制御の一例を示す概念図である。It is a conceptual diagram which shows an example of the pressure control of the plate glass at the time of resin pressurization. 樹脂加圧時における板ガラスの圧力制御の他の一例を示す概念図である。It is a conceptual diagram which shows another example of the pressure control of the plate glass at the time of resin pressurization. ガラス樹脂一体成形品の製造装置の変形例を示す正面断面図である。It is front sectional drawing which shows the modification of the manufacturing apparatus of a glass resin integrated molded product.
［表示装置用カバーガラス：第１の実施形態］
　図１は、第１の実施形態の表示装置用カバーガラスを示す斜視図である。図２は、図１のＡ－Ａ線断面図である。第１の実施形態の表示装置用カバーガラス１は、ガラス部材としての板ガラス２の周囲に枠体である樹脂成形体３が配置されたガラス樹脂一体成形品である。
　板ガラス２は、表示装置を使用するユーザ（図示せず）側のユーザ面であるガラス表面２ａと、ガラス表面２ａに連なるガラス側面２ｃとを有し、ガラス表面２ａ上には、詳細を後述する機能膜４が配置されている。
　なお、板ガラス２のガラス表面２ａと反対側の面にポリカーボネート等の樹脂膜を接合して、板ガラス２と樹脂膜との積層体としても構わない。板ガラス２と樹脂膜との積層体とすることで、板ガラス２の厚さを薄くすることができ、より軽量化を図ることができる。
　一方、図２に示す樹脂成形体３は、特有の断面形状を有している。すなわち、樹脂成形体３は、機能膜４の膜表面４ａと面一の樹脂表面３ａと、ガラス側面２ｃと対面する樹脂内側面３ｄとを有する。樹脂成形体３は、樹脂内側面３ｄが接着剤５を介してガラス側面２ｃに当接することにより、板ガラス２と接合している。こうして、板ガラス２と樹脂成形体３とが一体化している。
　樹脂成形体３は、板ガラス２の周囲に継ぎ目なく連続的に形成されている。樹脂成形体３の引張強度（ＡＳＴＭ－Ｄ６３８に準拠）は、好ましくは１８０～２４０ＭＰａであり、より好ましくは１９０～２２０ＭＰａである。 [Cover Glass for Display Device: First Embodiment]
FIG. 1 is a perspective view showing a cover glass for a display device according to the first embodiment. 2 is a cross-sectional view taken along line AA in FIG. The display device cover glass 1 of the first embodiment is a glass resin integrated molded product in which a resin molded body 3 that is a frame is disposed around a plate glass 2 as a glass member.
The plate glass 2 has a glass surface 2a which is a user surface on the user (not shown) side who uses the display device, and a glass side surface 2c which is continuous with the glass surface 2a. Details will be described later on the glass surface 2a. A functional film 4 is disposed.
In addition, a resin film such as polycarbonate may be bonded to the surface of the plate glass 2 opposite to the glass surface 2a to form a laminate of the plate glass 2 and the resin film. By setting it as the laminated body of the plate glass 2 and the resin film, the thickness of the plate glass 2 can be made thin and weight reduction can be achieved.
On the other hand, the resin molded body 3 shown in FIG. 2 has a unique cross-sectional shape. That is, the resin molded body 3 has a resin surface 3a flush with the film surface 4a of the functional film 4, and a resin inner side surface 3d facing the glass side surface 2c. The resin molded body 3 is joined to the plate glass 2 by the resin inner side surface 3d coming into contact with the glass side surface 2c via the adhesive 5. Thus, the plate glass 2 and the resin molded body 3 are integrated.
The resin molded body 3 is continuously formed around the plate glass 2 without a seam. The tensile strength (based on ASTM-D638) of the resin molded body 3 is preferably 180 to 240 MPa, and more preferably 190 to 220 MPa.
　ここで、膜表面４ａと樹脂表面３ａとが「面一」であることについて説明する。
　膜表面４ａと樹脂表面３ａとの継ぎ目には段差がなく、具体的には、膜表面４ａと樹脂表面３ａとの継ぎ目の高低差は、２０μｍ以下が好ましく、１０μｍ以下がより好ましく、まったく段差のない完全な「面一」が最も好ましい。 Here, it will be described that the film surface 4a and the resin surface 3a are “same”.
There is no step at the seam between the film surface 4a and the resin surface 3a. Specifically, the height difference between the film surface 4a and the resin surface 3a is preferably 20 μm or less, more preferably 10 μm or less, and no difference in level. A complete "evenness" is most preferred.
　また、ガラス側面２ｃと樹脂内側面３ｄとは、その間に接着剤５が介在することによって、互いに離間しているが、図２に示すように、樹脂成形体３における樹脂表面３ａを形成する部分が、接着剤５上に突出して、機能膜４の側面に当接している。このため、膜表面４ａと樹脂表面３ａとの間には実質的に隙間が存在しない。
　このように、膜表面４ａと樹脂表面３ａとの継ぎ目に段差がなく、かつ、隙間が存在しない表示装置用カバーガラス１は、ユーザに対して膜表面４ａと樹脂表面３ａとの境界部をシームレスに感じさせることができ、例えば、後述する本発明の製造方法により得られる。 Further, the glass side surface 2c and the resin inner side surface 3d are separated from each other by the adhesive 5 interposed therebetween, but as shown in FIG. 2, a portion forming the resin surface 3a in the resin molded body 3 However, it protrudes on the adhesive 5 and is in contact with the side surface of the functional film 4. For this reason, there is substantially no gap between the film surface 4a and the resin surface 3a.
As described above, the display device cover glass 1 in which there is no step at the joint between the film surface 4a and the resin surface 3a and no gap exists, allows the boundary between the film surface 4a and the resin surface 3a to be seamless to the user. For example, it can be obtained by the production method of the present invention described later.
　このような構成によれば、従来の表示装置用カバーガラス１０１のように樹脂成形体１０３が板ガラス１０２の外縁を覆う形状ではないため（図６参照）、機能膜４と接着剤５との界面は存在しないか、存在しても極わずかである。このため、機能膜４と接着剤５との界面における接着強度が低下して板ガラス２と樹脂成形体３との接合欠陥が生じることが防止され、表示装置用カバーガラス１が破損するおそれを低減できる。 According to such a configuration, since the resin molded body 103 does not have a shape that covers the outer edge of the plate glass 102 as in the conventional cover glass 101 for a display device (see FIG. 6), the interface between the functional film 4 and the adhesive 5 Does not exist or very little is present. For this reason, it is prevented that the adhesive strength in the interface of the functional film 4 and the adhesive agent 5 falls and the joining defect of the plate glass 2 and the resin molding 3 is produced, and the possibility that the cover glass 1 for display devices may be damaged is reduced. it can.
　また、図５および図６に示すように、従来の表示装置用カバーガラス１０１では、樹脂成形体１０３が板ガラス１０２のガラス表面１０２ａ（機能膜１０４）から大きく突出している。このため、樹脂成形体１０３におけるこの突出部位と板ガラス１０２との境界部分に、または、板ガラス１０２および機能膜１０４との境界部分にＬ字のくぼみ（図６中、符号１５１で示す）が形成され、このくぼみ１５１には、ホコリやチリがたまりやすい。
　しかし、第１の実施形態の表示装置用カバーガラス１においては、機能膜４の膜表面４ａと樹脂成形体３の樹脂表面３ａとが面一であるため、図６中に符号１５１で示されるようなくぼみは形成されず、ホコリやチリがたまりやすいという問題も回避できる。 Further, as shown in FIGS. 5 and 6, in the conventional display device cover glass 101, the resin molded body 103 largely protrudes from the glass surface 102 a (functional film 104) of the plate glass 102. Therefore, an L-shaped depression (indicated by reference numeral 151 in FIG. 6) is formed at the boundary portion between the protruding portion and the plate glass 102 in the resin molded body 103 or at the boundary portion between the plate glass 102 and the functional film 104. In this recess 151, dust and dust tend to accumulate.
However, in the display device cover glass 1 according to the first embodiment, the film surface 4a of the functional film 4 and the resin surface 3a of the resin molded body 3 are flush with each other, and is denoted by reference numeral 151 in FIG. Such a problem that the dust is not formed and dust or dust tends to collect can be avoided.
　また、図６に示すように、従来の表示装置用カバーガラス１０１では、樹脂成形体１０３が板ガラス１０２を挟み込むように覆っている。このため、板ガラス１０２のサイズよりも表示領域は狭くなり、表示領域を拡大するためには、より大きなサイズの板ガラス１０２が必要であり、表示装置の小型軽量化が困難であったり、コスト高につながったりする問題がある。
　しかし、第１の実施形態の表示装置用カバーガラス１においては、樹脂成形体３は、板ガラス２を挟み込んで覆う形状ではないため、例えば、板ガラス２のサイズが従来の表示装置用カバーガラス１０１における板ガラス１０２と同じであれば、表示領域をより拡大できるため小型軽量化が容易であり、また、板ガラス２のサイズを大きくすることによるコスト高を回避できる。加えて、板ガラス２表面と樹脂成形体３との境界が面一であるため一体感のあるデザインとすることもできる。 Further, as shown in FIG. 6, in the conventional cover glass 101 for a display device, the resin molded body 103 covers the plate glass 102 so as to sandwich it. For this reason, the display area becomes narrower than the size of the plate glass 102, and in order to enlarge the display area, a larger size of the plate glass 102 is necessary, and it is difficult to reduce the size and weight of the display device, and the cost increases. There is a problem that connects.
However, in the display device cover glass 1 of the first embodiment, the resin molded body 3 is not in a shape that sandwiches and covers the plate glass 2, so that the size of the plate glass 2 is, for example, that of the conventional display device cover glass 101. If it is the same as the plate glass 102, the display area can be further enlarged, so that it is easy to reduce the size and weight, and it is possible to avoid an increase in cost due to increasing the size of the plate glass 2. In addition, since the boundary between the surface of the plate glass 2 and the resin molded body 3 is flush, a design with a sense of unity can be achieved.
　以上、本発明の表示装置用カバーガラスの第１の実施形態について説明したが、本発明これに限定されるものではなく、例えば、以下に説明する第２および第３の実施形態も好ましい一態様として採用できる。 As mentioned above, although 1st Embodiment of the cover glass for display apparatuses of this invention was described, this invention is not limited to this, For example, 2nd and 3rd embodiment described below is also one preferable aspect. Can be adopted as
［表示装置用カバーガラス：第２の実施形態］
　図３は、第２の実施形態の表示装置用カバーガラスを示す断面図である。なお、第１の実施形態と同一の部分は、同じ符号を用い、説明も省略する。
　第２の実施形態では、樹脂成形体３の一部である回り込み部３ｅが、板ガラス２のガラス裏面（ガラス表面２ａとは反対側の主面）２ｂ側に回り込んでいる。このため、第２の実施形態では、第１の実施形態よりも表示領域は狭いものの、接着剤５による板ガラス２に対する接着面積が拡大しており、板ガラス２と樹脂成形体３との接合欠陥の発生をより防止できる。
　このような第２の実施形態は、例えば、板ガラス２が比較的薄いような場合において、接着剤５による接着面積を確保する観点からも好適に採用できる。 [Cover Glass for Display Device: Second Embodiment]
FIG. 3 is a cross-sectional view illustrating a cover glass for a display device according to the second embodiment. In addition, the same part as 1st Embodiment uses the same code | symbol, and abbreviate | omits description.
In the second embodiment, the wraparound portion 3e, which is a part of the resin molded body 3, wraps around the glass back surface (main surface opposite to the glass surface 2a) 2b of the plate glass 2. For this reason, in 2nd Embodiment, although the display area is narrower than 1st Embodiment, the adhesion area with respect to the plate glass 2 by the adhesive agent 5 is expanded, and the joint defect of the plate glass 2 and the resin molding 3 is expanded. Occurrence can be further prevented.
Such a 2nd embodiment can be suitably adopted also from a viewpoint of securing the adhesion area by adhesive 5, for example, when plate glass 2 is comparatively thin.
　なお、上記実施形態の表示装置用カバーガラスは、樹脂成形体３の板ガラス２のガラス裏面２ｂよりも下側に位置している部分（すなわち、平面視でガラス板２と重なる回り込み部３ｅ）を、表示装置とのシール部として、貼合部材として用いることもできる。具体的には、板ガラス２のガラス裏面２ｂと樹脂成形体３とで囲まれた領域（図３において５として示された領域）に粘着層となる樹脂組成物を供給する。その状態でディスプレイ等の保護対象となる表示装置と積層し、粘着層となる樹脂組成物を硬化させることで、容易に表示装置に板ガラス２と樹脂成形体３を貼合することができる。 In addition, the cover glass for display apparatuses of the said embodiment has the part (namely, wraparound part 3e which overlaps with the glass plate 2 by planar view) located below the glass back surface 2b of the plate glass 2 of the resin molding 3. Moreover, it can also be used as a bonding member as a seal part with a display device. Specifically, a resin composition that serves as an adhesive layer is supplied to a region surrounded by the glass back surface 2b of the plate glass 2 and the resin molded body 3 (a region indicated as 5 in FIG. 3). In this state, the sheet glass 2 and the resin molded body 3 can be easily bonded to the display device by laminating with a display device to be protected, such as a display, and curing the resin composition to be an adhesive layer.
　樹脂組成物を硬化させる雰囲気は、常圧でも構わないし、減圧下で行っても構わない。減圧下で硬化を行った場合、この後、それよりも高い圧力（例えば大気圧）の雰囲気に変えると、上昇した圧力によって板ガラス２と表示装置とが密着する方向に押圧されると同時に、シール部に囲まれて密封された空間に残留する空孔部の体積がその雰囲気の差圧に応じて縮減することから、板ガラス２と表示装置とシール部とで密閉された密閉空間における減圧の空間に樹脂組成物が流動していき、密閉空間全体が樹脂組成物によって均一に充填されるためより好ましい。 The atmosphere for curing the resin composition may be normal pressure or under reduced pressure. When curing is performed under reduced pressure, if the atmosphere is changed to an atmosphere of higher pressure (for example, atmospheric pressure) after that, the pressure is increased in the direction in which the plate glass 2 and the display device are in close contact with each other, and the seal is sealed. Since the volume of the void portion remaining in the sealed space surrounded by the portion is reduced according to the differential pressure of the atmosphere, the decompression space in the sealed space sealed by the plate glass 2, the display device, and the seal portion More preferably, the resin composition flows and the entire sealed space is uniformly filled with the resin composition.
　シール部は、表示装置と接着する際に表示装置と接触する部分であるため、シール部以外の樹脂成形体３よりも軟質の樹脂で形成しても構わない。この場合は、樹脂成形体３の下部が上部よりも軟質の樹脂で形成される。 Since the seal portion is a portion that comes into contact with the display device when bonded to the display device, the seal portion may be formed of a softer resin than the resin molded body 3 other than the seal portion. In this case, the lower part of the resin molded body 3 is formed of a softer resin than the upper part.
［表示装置用カバーガラス：第３の実施形態］
　図４は、第３の実施形態の表示装置用カバーガラスを示す断面図である。なお、第１の実施形態と同一の部分は、同じ符号を用い、説明も省略する。
　第３の実施形態では、樹脂成形体３の下部に別途異なる樹脂でシール部６を形成するものである。この場合も、シール部６は、樹脂成形体３よりも軟質の樹脂で形成されることが好ましい。 [Cover Glass for Display Device: Third Embodiment]
FIG. 4 is a cross-sectional view illustrating a cover glass for a display device according to a third embodiment. In addition, the same part as 1st Embodiment uses the same code | symbol, and abbreviate | omits description.
In the third embodiment, the seal portion 6 is formed with a different resin separately below the resin molded body 3. Also in this case, the seal portion 6 is preferably formed of a softer resin than the resin molded body 3.
　次に、本発明の表示装置用カバーガラスに用いられる各部について、詳細に説明する。
〔ガラス部材（板ガラス）〕
　ガラス部材としては、板ガラスのほか、例えば、ガラスレンズ等の光学部材も挙げられる。したがって、以下、板ガラス２について説明するが、ガラス部材としては、これに限定されるものではない。
　ガラス部材である板ガラス２は、ガラス表面２ａ、ガラス側面２ｃ、および、ガラス裏面２ｂを有するものであれば、その形状は限定されないが、矩形が好ましい。ここで、矩形とは、実質的に略矩形であり、周辺部の角を切り落とした（例えば、コーナーカットした）形状をも含む。なお、一実施形態として矩形状の板ガラスの例を示したが、これに限定されない。例えば、一辺が波型に加工された異形ガラス等でも構わない。また、湾曲した板ガラスを使用することもできる。
　板ガラス２の大きさは限定されないが、例えば、矩形の場合は、その主面（ガラス表面２ａおよびガラス裏面２ｂ）のサイズが、１０ｍｍ×３０ｍｍ～１０００ｍｍ×１６００ｍｍが好ましく、３０ｍｍ×５０ｍｍ～８００ｍｍ×１０００ｍｍがより好ましい。
　また、板ガラス２の厚さ（ガラス側面２ｃの長さ）は、特に限定されないが、例えば、０．５～１０ｍｍが好ましく、０．７～３ｍｍがより好ましい。 Next, each part used for the cover glass for display apparatuses of this invention is demonstrated in detail.
[Glass member (sheet glass)]
As a glass member, optical members, such as a glass lens other than plate glass, are mentioned, for example. Therefore, although the plate glass 2 is demonstrated below, as a glass member, it is not limited to this.
If the plate glass 2 which is a glass member has the glass surface 2a, the glass side surface 2c, and the glass back surface 2b, the shape will not be limited, but a rectangle is preferable. Here, the rectangle is substantially a rectangle and includes a shape in which the corners of the peripheral portion are cut off (for example, a corner is cut). In addition, although the example of the rectangular plate glass was shown as one Embodiment, it is not limited to this. For example, a deformed glass whose one side is processed into a corrugated shape may be used. Curved plate glass can also be used.
The size of the plate glass 2 is not limited. For example, in the case of a rectangle, the size of the main surface (glass surface 2a and glass back surface 2b) is preferably 10 mm × 30 mm to 1000 mm × 1600 mm, and 30 mm × 50 mm to 800 mm × 1000 mm. Is more preferable.
The thickness of the plate glass 2 (the length of the glass side surface 2c) is not particularly limited, but is preferably 0.5 to 10 mm, and more preferably 0.7 to 3 mm.
　なお、板ガラス２のガラス側面２ｃは、シランカップリング剤および／またはプライマにより予め表面処理することが好ましい。この処理により、板ガラス２と樹脂成形体３となる樹脂との接着性を向上できる。シランカップリング剤としては、ビニル基含有シランカップリング剤、スチリル基含有シランカップリング剤、アミノ基含有シランカップリング剤、エポキシ基含有シランカップリング剤、メタクリロイルオキシ基含有シランカップリング剤、アクリロイルオキシ基含有シランカップリング剤などが使用され、またプライマとしては、ウレタン樹脂、アクリル樹脂、シリコーン樹脂、エポキシ樹脂などを溶剤希釈したプライマを使用できる。 In addition, it is preferable to surface-treat the glass side surface 2c of the plate glass 2 beforehand with a silane coupling agent and / or a primer. By this treatment, the adhesiveness between the plate glass 2 and the resin to be the resin molded body 3 can be improved. As the silane coupling agent, vinyl group-containing silane coupling agent, styryl group-containing silane coupling agent, amino group-containing silane coupling agent, epoxy group-containing silane coupling agent, methacryloyloxy group-containing silane coupling agent, acryloyloxy A group-containing silane coupling agent or the like is used, and as the primer, a primer obtained by diluting a urethane resin, an acrylic resin, a silicone resin, an epoxy resin, or the like with a solvent can be used.
　板ガラス２の製造方法は、特に限定されず、従来公知の方法で製造できる。例えば、従来公知のガラス原料を溶解し溶融ガラスとした後、フロート法、フュージョン法、スロットダウンドロー法、リドロー法、引き上げ法等によって板状に成形して製造できる。
　また、板ガラス２のガラス組成は、特に限定されない。さらに、板ガラス２は、加熱融着等により積層された複数枚の板ガラスからなるものであってもよく、その場合、各板ガラスのガラス組成は、同一であっても互いに異なっていてもよい。
　もっとも、板ガラス２は、化学強化処理が施された強化ガラスであるのが好ましい。その場合、アルカリ成分を含有するガラスを選択する必要があり、ソーダライムガラスやアルカリアルミノシリケートガラスが好ましい。 The manufacturing method of the plate glass 2 is not specifically limited, It can manufacture by a conventionally well-known method. For example, it can be manufactured by melting a conventionally known glass raw material to form a molten glass, and then forming it into a plate shape by a float method, a fusion method, a slot down draw method, a redraw method, a pulling method or the like.
Moreover, the glass composition of the plate glass 2 is not specifically limited. Furthermore, the plate glass 2 may be composed of a plurality of plate glasses laminated by heat fusion or the like. In that case, the glass compositions of the respective plate glasses may be the same or different from each other.
However, it is preferable that the plate glass 2 is a tempered glass subjected to a chemical tempering treatment. In that case, it is necessary to select a glass containing an alkali component, and soda lime glass and alkali aluminosilicate glass are preferable.
　化学強化処理は、未処理の板ガラスに対して施される。板ガラスの表面（および表面を含む部位）には、化学強化処理が施されることで圧縮応力が発生した化学強化層が形成される一方、化学強化処理が施されない内部には、相対的に引張応力が発生し、引張応力層が形成される。
　化学強化層の深さは、例えば２～５０μｍであり、その圧縮応力は、例えば５０～９００ＭＰａである。また、引張応力層の引張応力は、例えば２０～１００ＭＰａである。
　化学強化処理は、概略的には、板ガラスに存在するアルカリ成分（例えば、Ｌｉイオン、Ｎａイオン等のアルカリ金属イオンであり、以下「小径アルカリ成分」ともいう）を、イオン半径がより大きいアルカリ成分（例えば、Ｋイオン等のアルカリ金属イオンであり、以下「大径アルカリ成分」ともいう）で置換する、いわゆるイオン交換処理である。
　化学強化処理の方法としては、具体的には、例えば、板ガラスを硝酸カリウム（ＫＮＯ３）溶融塩に１５分～５時間浸漬させる方法が挙げられる。化学強化処理は、浸漬の前処理として、ヒータ等を用いて予熱する予熱処理を含んでいてもよい。化学強化処理（予熱処理を含む）の温度としては、例えば、５５０℃以下が挙げられる。 The chemical strengthening treatment is performed on the untreated plate glass. On the surface (and the part including the surface) of the plate glass, a chemically strengthened layer in which a compressive stress is generated by the chemical strengthening treatment is formed, while the inner portion not subjected to the chemical strengthening treatment is relatively tensile. Stress is generated and a tensile stress layer is formed.
The depth of the chemical strengthening layer is, for example, 2 to 50 μm, and the compressive stress thereof is, for example, 50 to 900 MPa. Further, the tensile stress of the tensile stress layer is, for example, 20 to 100 MPa.
The chemical strengthening treatment generally includes an alkali component (for example, an alkali metal ion such as Li ion or Na ion, hereinafter also referred to as “small-diameter alkali component”) present in the plate glass, and an alkali component having a larger ion radius. This is a so-called ion exchange treatment that is substituted with (for example, an alkali metal ion such as K ion, hereinafter also referred to as “large-diameter alkali component”).
Specific examples of the chemical strengthening treatment method include a method in which plate glass is immersed in a molten potassium nitrate (KNO3) salt for 15 minutes to 5 hours. The chemical strengthening treatment may include a preheat treatment for preheating using a heater or the like as a pretreatment for immersion. Examples of the temperature of the chemical strengthening treatment (including preheat treatment) include 550 ° C. or lower.
　なお、化学強化処理が施された強化ガラスは、その後切断されて、上述した寸法の板ガラス２が得られる。このとき、切断方法としては、特に限定されず、公知の切断方法が用いられ、例えば、ダイヤモンドカッターで切断線を刻設した後に折り割りする方法や、ダイシング装置で切断する方法、レーザー切断などが挙げられる。
　化学強化処理後に切断されて得られる板ガラス２は、端部が切断されることにより、２層の圧縮応力層の間に１層の引張応力層を有し、かつ、切断面（つまり、ガラス側面２ｃ）から引張応力層が露出した状態となる。また側面の強度を維持するために、切断後（面取り加工後も含む）に化学強化処理してもよい。 In addition, the tempered glass to which the chemical strengthening process was performed is cut | disconnected after that, and the plate glass 2 of the dimension mentioned above is obtained. In this case, the cutting method is not particularly limited, and a known cutting method is used. For example, a method of cutting after cutting a cutting line with a diamond cutter, a method of cutting with a dicing apparatus, a laser cutting, etc. Can be mentioned.
The plate glass 2 obtained by being cut after the chemical strengthening treatment has one tensile stress layer between two compressive stress layers by cutting the end portion, and a cut surface (that is, a glass side surface). From 2c), the tensile stress layer is exposed. In order to maintain the strength of the side surface, chemical strengthening treatment may be performed after cutting (including after chamfering).
　〈ガラスの加飾〉
　板ガラス２のガラス表面２ａ（またはその反対のガラス裏面２ｂ）には、任意の加飾が施されてもよい。加飾の柄は、任意に実施することができるが、例えば黒色や白色によって額縁状の枠を形成する柄が挙げられる。加飾方法は、種々の方法が利用できるが、例えば、スクリーン印刷、パッド印刷、グラビヤオフセット印刷などが挙げられる。
　〈板ガラスの端面処理〉
　ガラス部材として、板ガラスを使用する場合、板ガラスは、ガラス表面とガラス側面との間の角部に面取り部を有するものであってもよい。この場合、面取りの態様は、Ｃ面取りであってもよいし、Ｒ面取りであってもよい。
　また、このように面取り加工が施された板ガラスを使用することにより、板ガラスの取り扱いを容易にできる。
　なお、面取り部の形態としては、Ｃ面取りが好ましい。Ｃ面取りとすることにより、Ｒ面取りに比して、板ガラスと樹脂成形体との継ぎ目部分の平坦性をより向上させることができる。
　また、板ガラスは、このような端面処理を施さない板ガラスを使用することもできる。すなわち、所定サイズに切断後、その切断面である側面が未処理の板ガラスを使用することもできる。これにより、使用する板ガラスの下処理の負担を低減できる。 <Glass decoration>
Arbitrary decoration may be given to the glass surface 2a of the plate glass 2 (or the opposite glass back surface 2b). Although the pattern of decoration can be implemented arbitrarily, the pattern which forms a frame of frame shape with black or white, for example is mentioned. Various methods can be used as the decoration method, and examples thereof include screen printing, pad printing, and gravure offset printing.
<End treatment of glass sheet>
When plate glass is used as the glass member, the plate glass may have a chamfered portion at a corner between the glass surface and the glass side surface. In this case, the chamfering may be C chamfering or R chamfering.
Moreover, handling of plate glass can be facilitated by using plate glass that has been chamfered in this way.
In addition, as a form of a chamfering part, C chamfering is preferable. By setting it as C chamfering, the flatness of the seam part of plate glass and a resin molding can be improved more compared with R chamfering.
Moreover, the plate glass which does not give such an end surface process can also be used for plate glass. That is, after cutting into a predetermined size, it is possible to use a plate glass whose side surface, which is the cut surface, is untreated. Thereby, the burden of the pretreatment of the plate glass to be used can be reduced.
 〔機能膜〕
　次に、板ガラス２のガラス表面２ａ上に設けられる機能膜４について説明する。機能膜４は、フッ素含有有機ケイ素化合物により構成できる。すなわち、板ガラス２のガラス表面２ａ上で、フッ素含有有機ケイ素化合物を用いて成膜することにより、機能膜４が形成される。なお、機能膜４と板ガラス２との間に反射防止膜等の任意の機能膜層（図示せず）を設けても構わない。 [Functional membrane]
Next, the functional film 4 provided on the glass surface 2a of the plate glass 2 will be described. The functional film 4 can be composed of a fluorine-containing organosilicon compound. That is, the functional film 4 is formed by forming a film using a fluorine-containing organosilicon compound on the glass surface 2 a of the plate glass 2. An arbitrary functional film layer (not shown) such as an antireflection film may be provided between the functional film 4 and the plate glass 2.
　フッ素含有有機ケイ素化合物としては、機能性、撥水性、撥油性を付与するものであれば特に限定されず使用できる。
　このようなフッ素含有有機ケイ素化合物としては、例えば、パーフルオロポリエーテル基、パーフルオロアルキレン基およびパーフルオロアルキル基からなる群から選ばれる１つ以上の基を有するフッ素含有有機ケイ素化合物を好ましく使用できる。なお、パーフルオロポリエーテル基とは、パーフルオロアルキレン基とエーテル性酸素原子とが交互に結合した構造を有する２価の基のことである。
　このパーフルオロポリエーテル基、パーフルオロアルキレン基およびパーフルオロアルキル基からなる群から選ばれる１つ以上の基を有するフッ素含有有機ケイ素化合物の具体例としては、下記一般式（Ｉ）～（Ｖ）で表される化合物等が挙げられる。 Any fluorine-containing organosilicon compound can be used without particular limitation as long as it imparts functionality, water repellency and oil repellency.
As such a fluorine-containing organosilicon compound, for example, a fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group can be preferably used. . The perfluoropolyether group is a divalent group having a structure in which perfluoroalkylene groups and etheric oxygen atoms are alternately bonded.
Specific examples of the fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group include the following general formulas (I) to (V): The compound etc. which are represented by these are mentioned.
Figure JPOXMLDOC01-appb-C000001
Figure JPOXMLDOC01-appb-C000001
　式中、Ｒｆは、炭素数１～１６の直鎖状のパーフルオロアルキル基（アルキル基として、例えば、メチル基、エチル基、ｎ－プロピル基、イソプロピル基、ｎ－ブチル基等）、Ｘは、水素原子または炭素数１～５の低級アルキル基（例えば、メチル基、エチル基、ｎ－プロピル基、イソプロピル基、ｎ－ブチル基等）、Ｒ１は、加水分解可能な基（例えば、アミノ基、アルコキシ基等）またはハロゲン原子（例えば、フッ素、塩素、臭素、ヨウ素等）、ｍは１～５０、好ましくは１～３０の整数、ｎは０～２、好ましくは１～２の整数、ｐは１～１０、好ましくは１～８の整数である。 In the formula, Rf is a linear perfluoroalkyl group having 1 to 16 carbon atoms (alkyl group such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, etc.), and X is , A hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms (for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, etc.), R1 is a hydrolyzable group (for example, amino group) An alkoxy group, etc.) or a halogen atom (for example, fluorine, chlorine, bromine, iodine, etc.), m is an integer of 1 to 50, preferably 1 to 30, n is an integer of 0 to 2, preferably 1 to 2, p Is an integer of 1 to 10, preferably 1 to 8.
　　　　　　　ＣｑＦ２ｑ＋１ＣＨ２ＣＨ２Ｓｉ（ＮＨ２）３　　　　（ＩＩ）
ここで、ｑは１以上、好ましくは２～２０の整数である。 C q F 2q + 1 CH 2 CH 2 Si (NH 2) 3 (II)
Here, q is 1 or more, preferably an integer of 2 to 20.
　一般式（ＩＩ）で表される化合物としては、例えば、ｎ－トリフロロ（１，１，２，２－テトラヒドロ）プロピルシラザン（ｎ－ＣＦ３ＣＨ２ＣＨ２Ｓｉ（ＮＨ２）３）、ｎ－ヘプタフロロ（１，１，２，２－テトラヒドロ）ペンチルシラザン（ｎ－Ｃ３Ｆ７ＣＨ２ＣＨ２Ｓｉ（ＮＨ２）３）等を例示できる。 Examples of the compound represented by the general formula (II) include n-trifluoro (1,1,2,2-tetrahydro) propylsilazane (n-CF 3 CH 2 CH 2 Si (NH 2 ) 3 ), n- Examples include heptafluoro (1,1,2,2-tetrahydro) pentylsilazane (nC 3 F 7 CH 2 CH 2 Si (NH 2 ) 3 ).
　　　　　　Ｃｑ’Ｆ２ｑ’＋１ＣＨ２ＣＨ２Ｓｉ（ＯＣＨ３）３　　　　（ＩＩＩ）
　ここで、ｑ'は１以上、好ましくは１～２０の整数である。 C q ′ F 2q ′ + 1 CH 2 CH 2 Si (OCH 3 ) 3 (III)
Here, q ′ is an integer of 1 or more, preferably 1-20.
　一般式（ＩＩＩ）で表される化合物としては、２－（パーフルオロオクチル）エチルトリメトキシシラン（ｎ－Ｃ８Ｆ１７ＣＨ２ＣＨ２Ｓｉ（ＯＣＨ３）３）等を例示できる。 Examples of the compound represented by the general formula (III) include 2- (perfluorooctyl) ethyltrimethoxysilane (nC 8 F 17 CH 2 CH 2 Si (OCH 3 ) 3 ) and the like.
Figure JPOXMLDOC01-appb-C000002
Figure JPOXMLDOC01-appb-C000002
　式（ＩＶ）中、Ｒｆ２は、－（ＯＣ３Ｆ６）ｓ－（ＯＣ２Ｆ４）ｔ－（ＯＣＦ２）ｕ－（ｓ、ｔ、ｕはそれぞれ独立に０～２００の整数）で表わされる２価の直鎖状パーフルオロポリエーテル基であり、Ｒ２、Ｒ３は、それぞれ独立に炭素原子数１～８の一価炭化水素基（例えば、メチル基、エチル基、ｎ－プロピル基、イソプロピル基、ｎ－ブチル基等）である。Ｘ２、Ｘ３は、独立に加水分解可能な基（例えば、アミノ基、アルコキシ基、アシロキシ基、アルケニルオキシ基、イソシアネート基等）またはハロゲン原子（例えば、フッ素原子、塩素原子、臭素原子、ヨウ素原子等）であり、ｄ、ｅは、独立に１～２の整数であり、ｃ、ｆは独立に１～５（好ましくは１～２）の整数であり、ａおよびｂは、独立に２または３である。 In the formula (IV), R f2 is — (OC 3 F 6 ) s — (OC 2 F 4 ) t — (OCF 2 ) u — (s, t and u are each independently an integer of 0 to 200) R 2 and R 3 each independently represents a monovalent hydrocarbon group having 1 to 8 carbon atoms (for example, methyl group, ethyl group, n-propyl group). Group, isopropyl group, n-butyl group and the like. X 2 and X 3 are independently hydrolyzable groups (for example, amino group, alkoxy group, acyloxy group, alkenyloxy group, isocyanate group and the like) or halogen atoms (for example, fluorine atom, chlorine atom, bromine atom, iodine) D and e are independently an integer of 1 to 2, c and f are independently an integer of 1 to 5 (preferably 1 to 2), and a and b are independently 2 Or 3.
　化合物（ＩＶ）が有するＲｆ２においてｓ＋ｔ＋ｕは、２０～３００が好ましく、２５～１００がより好ましい。また、Ｒ２、Ｒ３としては、メチル基、エチル基、ブチル基がより好ましい。Ｘ２、Ｘ３で示される加水分解性基としては、炭素数１～６のアルコキシ基がより好ましく、メトキシ基、エトキシ基が特に好ましい。また、ａおよびｂは、それぞれ３が好ましい。 In R f2 of the compound (IV), s + t + u is preferably 20 to 300, more preferably 25 to 100. R 2 and R 3 are more preferably a methyl group, an ethyl group, or a butyl group. The hydrolyzable group represented by X 2 or X 3 is more preferably an alkoxy group having 1 to 6 carbon atoms, particularly preferably a methoxy group or an ethoxy group. Further, a and b are each preferably 3.
Figure JPOXMLDOC01-appb-C000003
Figure JPOXMLDOC01-appb-C000003
　式（Ｖ）中、ｖは１～３の整数であり、ｗ、ｙ、ｚは、それぞれ独立に０～２００の整数であり、ｈは１または２であり、ｉは２～２０の整数であり、Ｘ４は加水分解性基であり、Ｒ４は炭素数１～２２の直鎖または分岐の炭化水素基であり、ｋは０～２の整数である。ｗ＋ｙ＋ｚは、２０～３００が好ましく、２５～１００がより好ましい。ｉは２～１０がより好ましい。Ｘ４は、炭素数１～６のアルコキシ基が好ましく、メトキシ基、エトキシ基がより好ましい。Ｒ４としては、炭素数１～１０のアルキル基がより好ましい。 In the formula (V), v is an integer of 1 to 3, w, y and z are each independently an integer of 0 to 200, h is 1 or 2, and i is an integer of 2 to 20. X 4 is a hydrolyzable group, R 4 is a linear or branched hydrocarbon group having 1 to 22 carbon atoms, and k is an integer of 0 to 2. w + y + z is preferably 20 to 300, more preferably 25 to 100. i is more preferably from 2 to 10. X 4 is preferably an alkoxy group having 1 to 6 carbon atoms, more preferably a methoxy group or an ethoxy group. R 4 is more preferably an alkyl group having 1 to 10 carbon atoms.
　また、市販されているパーフルオロポリエーテル基、パーフルオロアルキレン基およびパーフルオロアルキル基からなる群から選ばれる１つ以上の基を有するフッ素含有有機ケイ素化合物として、ＫＰ－８０１（商品名、信越化学社製）、ＫＹ１７８（商品名、信越化学社製）、ＫＹ－１３０（商品名、信越化学社製）、ＫＹ１８５（商品名、信越化学社製）、オプツ－ル（登録商標）ＤＳＸおよびオプツール（登録商標）ＡＥＳ（いずれも商品名、ダイキン社製）などが好ましく使用できる。 Further, as a fluorine-containing organosilicon compound having one or more groups selected from the group consisting of a perfluoropolyether group, a perfluoroalkylene group and a perfluoroalkyl group, KP-801 (trade name, Shin-Etsu Chemical Co., Ltd.) KY178 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), KY185 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), OPT Tool (registered trademark) DSX and OPTOOL (trade name) (Registered trademark) AES (both trade names, manufactured by Daikin) and the like can be preferably used.
　なお、フッ素含有有機ケイ素化合物は、大気中の水分との反応による劣化抑制などのためにフッ素系溶媒等の溶媒と混合して保存されているのが一般的であるが、これらの溶媒を含んだまま成膜すると、得られる機能膜４の耐久性等に悪影響を及ぼすことがある。
　このため、本発明においては、予め溶媒除去処理を行ったフッ素含有有機ケイ素化合物、または、溶媒で希釈されていない（すなわち、溶媒を添加していない）フッ素含有有機ケイ素化合物を用いることが好ましい。例えば、フッ素含有有機ケイ素化合物溶液中に含まれる溶媒の濃度として１ｍｏｌ％以下のものが好ましく、０．２ｍｏｌ％以下のものがより好ましい。溶媒を含まないフッ素含有有機ケイ素化合物を用いることが特に好ましい。
　上記フッ素含有有機ケイ素化合物を保存する際に用いられている溶媒としては、例えば、パーフルオロヘキサン、メタキシレンヘキサフルオライド（Ｃ６Ｈ４（ＣＦ３）２）、ハイドロフロオロポリエーテル、ＨＦＥ７２００／７１００（商品名、住友スリーエム社製、ＨＦＥ７２００は、Ｃ４Ｆ９Ｃ２Ｈ５、ＨＦＥ７１００はＣ４Ｆ９ＯＣＨ３で表わされる）等が挙げられる。
　フッ素系溶媒を含むフッ素含有有機ケイ素化合物溶液からの溶媒（溶剤）の除去処理は、例えばフッ素含有有機ケイ素化合物溶液を入れた容器を真空排気することにより行うことができる。
　真空排気を行う時間については、排気ライン、真空ポンプ等の排気能力、溶液の量等により変化するため限定されるものではないが、例えば１０時間程度以上真空排気することにより行うことができる。 In general, fluorine-containing organosilicon compounds are stored in a mixture with a solvent such as a fluorinated solvent in order to suppress deterioration due to reaction with moisture in the atmosphere. If the film is formed as it is, the durability of the obtained functional film 4 may be adversely affected.
For this reason, in this invention, it is preferable to use the fluorine-containing organosilicon compound which performed the solvent removal process previously, or the fluorine-containing organosilicon compound which is not diluted with the solvent (namely, the solvent is not added). For example, the concentration of the solvent contained in the fluorine-containing organosilicon compound solution is preferably 1 mol% or less, more preferably 0.2 mol% or less. It is particularly preferable to use a fluorine-containing organosilicon compound that does not contain a solvent.
Examples of the solvent used for storing the fluorine-containing organosilicon compound include perfluorohexane, metaxylene hexafluoride (C 6 H 4 (CF 3 ) 2 ), hydrofluoropolyether, HFE7200 / 7100 (trade name, manufactured by Sumitomo 3M Limited, HFE7200 is represented by C 4 F 9 C 2 H 5 , and HFE 7100 is represented by C 4 F 9 OCH 3 ).
The removal treatment of the solvent (solvent) from the fluorine-containing organosilicon compound solution containing the fluorine-based solvent can be performed, for example, by evacuating a container containing the fluorine-containing organosilicon compound solution.
The time for performing vacuum evacuation is not limited because it varies depending on the exhaust capacity of the exhaust line, the vacuum pump, etc., the amount of the solution, and the like.
　本発明における機能膜４を、板ガラス２のガラス表面２ａ上に成膜する方法は、特に限定されるものではないが、上記のような材料を用いて真空蒸着により成膜することが好ましい。
　この場合、上記溶媒の除去処理は、機能膜４を成膜する成膜装置の加熱容器にフッ素含有有機ケイ素化合物溶液を導入後、昇温する前に室温で加熱容器内を真空排気することにより行うこともできる。また、加熱容器に導入する前に予めエバポレーター等により溶媒除去を行っておくこともできる。
　ただし、上述のとおり溶媒含有量が少ない、または含まないフッ素含有有機ケイ素化合物は、溶媒を含んでいるものと比較して、大気と接触することにより劣化しやすい。
　このため、溶媒含有量の少ない（または含まない）フッ素含有有機ケイ素化合物の保管容器は、容器中を窒素等の不活性ガスで置換、密閉したものを使用し、取り扱う際には大気への暴露、接触時間が短くなるようにすることが好ましい。
　具体的には、保管容器を開封後は、直ちに機能膜４を成膜する成膜装置の加熱容器にフッ素含有有機ケイ素化合物を導入することが好ましい。そして、導入後は、加熱容器内を真空にするか、窒素、希ガス等の不活性ガスにより置換することにより、加熱容器内に含まれる大気（空気）を除去することが好ましい。大気と接触することなく保管容器（貯蔵容器）から本製造装置の加熱容器に導入できるように、例えば貯蔵容器と加熱容器とが、バルブ付きの配管により接続されていることがより好ましい。
　そして、加熱容器にフッ素含有有機ケイ素化合物を導入後、容器内を真空または不活性ガスで置換した後には、直ちに成膜のための加熱を開始することが好ましい。
　なお、機能膜４は板ガラス２上に成膜する以外に、フィルム等を貼ることにより形成しても構わない。 A method for forming the functional film 4 in the present invention on the glass surface 2a of the plate glass 2 is not particularly limited, but it is preferable to form the functional film 4 by vacuum deposition using the above materials.
In this case, the solvent removal treatment is performed by evacuating the heating container at room temperature after introducing the fluorine-containing organosilicon compound solution into the heating container of the film forming apparatus for forming the functional film 4 and before raising the temperature. It can also be done. Further, the solvent can be removed beforehand by an evaporator or the like before being introduced into the heating container.
However, as described above, the fluorine-containing organosilicon compound having a small or no solvent content is likely to be deteriorated by contact with the atmosphere as compared with those containing a solvent.
For this reason, storage containers for fluorine-containing organosilicon compounds with low (or no) solvent content should be replaced with an inert gas such as nitrogen and sealed, and exposed to the atmosphere when handled. It is preferable to shorten the contact time.
Specifically, it is preferable to introduce the fluorine-containing organosilicon compound into the heating container of the film forming apparatus for forming the functional film 4 immediately after opening the storage container. And after introduction | transduction, it is preferable to remove the air | atmosphere (air) contained in a heating container by evacuating the inside of a heating container or substituting with inert gas, such as nitrogen and a noble gas. For example, the storage container and the heating container are more preferably connected by a pipe with a valve so that the storage container (storage container) can be introduced into the heating container of the present manufacturing apparatus without coming into contact with the atmosphere.
Then, after introducing the fluorine-containing organosilicon compound into the heating container and replacing the inside of the container with a vacuum or an inert gas, it is preferable to immediately start heating for film formation.
The functional film 4 may be formed by attaching a film or the like in addition to the film formation on the plate glass 2.
　このようにして得られる機能膜４の厚さは、０．５～１００μｍが好ましく、１～３０μｍがより好ましい。 The thickness of the functional film 4 thus obtained is preferably 0.5 to 100 μm, more preferably 1 to 30 μm.
 〔接着剤〕
　本発明に用いられる接着剤５は、板ガラス２のガラス側面２ｃ（第２の実施形態の場合には、さらに、ガラス裏面２ｂの縁）に塗布されて硬化することにより、接着力を発揮して、樹脂成形体３との接合に寄与するものであるが、表示装置用カバーガラス１がノートＰＣ、タブレットＰＣ、スマートフォン等の表示装置に用いられることから、導電性を有さず、また、できるだけ絶縁性に優れたものを用いることが好ましい。このような接着剤５の材質としては、接着力に優れるシリコーン系、ウレタン系、および、エポキシ系の接着剤ならびに両面テープ等が好適に挙げられる。
　なお、本明細書では、硬化前の接着剤も、硬化後の接着剤も単に「接着剤」と称する。 〔adhesive〕
The adhesive 5 used in the present invention exhibits an adhesive force by being applied and cured on the glass side surface 2c of the plate glass 2 (in the case of the second embodiment, the edge of the glass back surface 2b). Although it contributes to joining with the resin molding 3, since the cover glass 1 for a display device is used for a display device such as a notebook PC, a tablet PC, or a smartphone, it does not have conductivity, and as much as possible. It is preferable to use a material having excellent insulating properties. Suitable examples of the material for the adhesive 5 include silicone-based, urethane-based, and epoxy-based adhesives having excellent adhesive strength, double-sided tapes, and the like.
In this specification, the adhesive before curing and the adhesive after curing are simply referred to as “adhesive”.
 〔樹脂成形体（樹脂）〕
　樹脂成形体３は、接着剤５を介して板ガラス２に接合し、樹脂成形体３と板ガラス２とが一体化して、表示装置用カバーガラス１となる。
　樹脂成形体３となる樹脂の材質としては、表示装置用カバーガラス１がノートＰＣ、タブレットＰＣ、スマートフォン等の表示装置に用いられることから、導電性を有さず、また、できるだけ絶縁性に優れたものを用いることが好ましく、本発明においては、熱可塑性樹脂が好適に使用される。
　本発明に使用される熱可塑性樹脂としては、溶融成形により板ガラス２と一体成形できるものであれば、特に限定されず、例えば、熱可塑性ポリエステル樹脂（例えば、ポリエチレンテレフタレート樹脂、ポリブチレンテレフタレート樹脂など）、熱可塑性ポリエステル樹脂と他の樹脂との混合物、ポリマーアロイ、変性ポリエステル樹脂、芳香族ポリエステル樹脂、液晶ポリマー、ポリフェニレンスルフィド樹脂、ポリアミド樹脂、ポリイミド樹脂、ポリアミドイミド樹脂、ポリエーテルイミド樹脂、ポリオレフィン樹脂（例えば、ポリエチレン樹脂、ポリプロピレン樹脂、ポリブテン樹脂など）、これらの変性樹脂、ポリメチルペンテン樹脂、ポリスチレン樹脂、ポリα－メチルスチレン樹脂、ＡＳ樹脂、ＡＢＳ樹脂、石油樹脂、ポリカーボネート樹脂、ポリスルフォン樹脂、ポリエーテルスルフォン樹脂、ポリアリルスルフォン樹脂、ポリアリレート樹脂、ポリオキシメチレン樹脂、ポリエーテルエーテルケトン樹脂、ポリアリルエーテルニトリル樹脂、ポリベンゾイミダゾール樹脂、ポリ塩化ビニル樹脂、フッ素樹脂、ポリフェニレンオキシド樹脂、変性ポリフェニレンオキシド樹脂、（メタ）アクリル樹脂、ノルボルネン樹脂、熱可塑性ポリウレタン樹脂等が挙げられる。 [Resin molding (resin)]
The resin molded body 3 is bonded to the plate glass 2 via the adhesive 5, and the resin molded body 3 and the plate glass 2 are integrated to form the display device cover glass 1.
As the material of the resin used as the resin molded body 3, since the display device cover glass 1 is used for a display device such as a notebook PC, a tablet PC, or a smartphone, it does not have electrical conductivity and is as excellent as possible in insulation. In the present invention, a thermoplastic resin is preferably used.
The thermoplastic resin used in the present invention is not particularly limited as long as it can be integrally formed with the glass sheet 2 by melt molding. For example, thermoplastic polyester resins (for example, polyethylene terephthalate resin, polybutylene terephthalate resin, etc.) , Mixtures of thermoplastic polyester resins and other resins, polymer alloys, modified polyester resins, aromatic polyester resins, liquid crystal polymers, polyphenylene sulfide resins, polyamide resins, polyimide resins, polyamideimide resins, polyetherimide resins, polyolefin resins ( For example, polyethylene resin, polypropylene resin, polybutene resin, etc.), modified resins thereof, polymethylpentene resin, polystyrene resin, poly α-methylstyrene resin, AS resin, ABS resin, petroleum resin, polycarbonate Bonate resin, polysulfone resin, polyether sulfone resin, polyallyl sulfone resin, polyarylate resin, polyoxymethylene resin, polyether ether ketone resin, polyallyl ether nitrile resin, polybenzimidazole resin, polyvinyl chloride resin, fluorine resin , Polyphenylene oxide resin, modified polyphenylene oxide resin, (meth) acrylic resin, norbornene resin, thermoplastic polyurethane resin, and the like.
　〈液晶ポリマー、結晶性樹脂〉
　これらの熱可塑性樹脂のうち、低剪断応力のため溶融流動性に優れており金型へ低圧で注入でき、また、バリが出にくいという観点から、液晶ポリマーおよび結晶性樹脂（ただし、液晶ポリマーを除く）が好ましい。
　液晶ポリマー（ＬＣＰ）としては、液晶層の構造がネマチック、スメクチック、ディスコチックである液晶ポリマーのいずれでもよく、また、芳香族ヒドロキシカルボン酸由来、芳香族ジカルボン酸由来、芳香族ジオール由来のいずれの繰返し単位を主として有するものでもよい。特に、溶融成形が可能なサーモトロピック液晶ポリマーが好ましい。
　これらは種々の物性のものが市販されており、いずれも好適に使用でき、例えば、ロッドランＬＣ－５０００、ＬＣ－５０００Ｆ、ＬＣ－５０００Ｈ（商品名、以上ユニチカ社製）、ザイダーＳＲＴ－３００、ＳＲＴ－５００、ＦＳＲ－３１５、ＲＣ－２１０、ＦＣ－１１０、ＦＣ－１２０、ＦＣ－１３０（商品名、以上日本石油化学社製）、エコノールＥ２０００、エコノールＥ６０００（商品名、以上住友化学工業社製）、ＥＰＥ－２４０Ｇ３０、ノバキュレートＥ３２２Ｇ３０、Ｅ３３５Ｇ３０（商品名、以上三菱化学社製）、ベクトラＡ９５０、ベクトラＡ１３０、ベクトラＣ１３０、ベクトラＡ２３０、ベクトラＡ４１０（商品名、以上ポリプラスチックス社製)、ＢＩＡＣ（商品名、ジャパンゴアテックス社製)、ＯＣＴＡ（商品名、大日本インキ化学工業社製）、Ｚｅｎｉｔｅ（商品名、デュポン社製)、Ｎｏｖａｃｃｕｒａｔｅ（商品名、三菱エンジニアリング社製）、ＳＩＶＥＲＡＳ（商品名、東レ社製）等が使用できる。
　また、結晶性樹脂（ただし、液晶ポリマーを除く）としては、ポリフェニレンスルフィド樹脂（ＰＰＳ）、ポリエチレンテレフタレート樹脂（ＰＥＴ）、ポリブチレンテレフタレート樹脂（ＰＢＴ）、芳香族ポリエステル樹脂、ポリエーテルエーテルケトン樹脂（ＰＥＥＫ）、ポリエーテルニトリル樹脂（ＰＥＮ）、ポリアミド樹脂（ナイロン樹脂）（例えば、ポリアミド６、ポリアミド６６、ポリアミド１１、ポリアミド１２、ポリアミド４６、ポリアミド６２０、ポリアミド６１２、ポリアミドＭＤＸ６など）、ポリオキシメチレン樹脂（ＰＯＭ）、ポリエチレン樹脂（例えば、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレンなど）、ポリプロピレン樹脂、ポリスチレン樹脂（例えば、シンジオタクチックポリスチレンなど）、ポリブテン樹脂、ポリメチルペンテン樹脂、フッ素樹脂、ポリイミド樹脂等が挙げられる。
　結晶性樹脂（ただし、液晶ポリマーを除く）としては、ポリフェニレンスルフィド樹脂、ポリエチレンテレフタレート樹脂、ポリブチレンテレフタレート樹脂、芳香族ポリエステル樹脂、ポリアミド樹脂、ポリオキシメチレン樹脂、ポリイミド樹脂が好ましく、ポリフェニレンスルフィド樹脂がより好ましい。 <Liquid crystal polymer, crystalline resin>
Among these thermoplastic resins, liquid crystal polymers and crystalline resins (however, liquid crystal polymers are used from the viewpoint that they have excellent melt fluidity due to low shear stress, can be injected into the mold at low pressure, and are difficult to generate burrs. Is preferred).
The liquid crystal polymer (LCP) may be any liquid crystal polymer whose liquid crystal layer has a nematic, smectic or discotic structure, and is derived from an aromatic hydroxycarboxylic acid, an aromatic dicarboxylic acid, or an aromatic diol. It may have mainly repeating units. In particular, a thermotropic liquid crystal polymer that can be melt-molded is preferable.
Those having various physical properties are commercially available, and any of them can be suitably used. For example, Rodrun LC-5000, LC-5000F, LC-5000H (trade names, manufactured by Unitika Ltd.), Zyder SRT-300, SRT -500, FSR-315, RC-210, FC-110, FC-120, FC-130 (trade names, made by Nippon Petrochemical Co., Ltd.), Econol E2000, Econol E6000 (trade names, made by Sumitomo Chemical Co., Ltd.) , EPE-240G30, Novacurate E322G30, E335G30 (trade names, manufactured by Mitsubishi Chemical), Vectra A950, Vectra A130, Vectra C130, Vectra A230, Vectra A410 (trade names, manufactured by Polyplastics), BIAC (Product) Name, Japan Gore-Tex), OCTA (product) , Manufactured by Dainippon Ink and Chemicals, Inc.), Zenite (trade name, manufactured by DuPont), Novaccurate (trade name, Mitsubishi Engineering Co., Ltd.), SIVERAS (trade name, manufactured by Toray Industries, Inc.), and the like can be used.
Crystalline resins (excluding liquid crystal polymers) include polyphenylene sulfide resin (PPS), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), aromatic polyester resin, polyether ether ketone resin (PEEK). ), Polyether nitrile resin (PEN), polyamide resin (nylon resin) (for example, polyamide 6, polyamide 66, polyamide 11, polyamide 12, polyamide 46, polyamide 620, polyamide 612, polyamide MDX6, etc.), polyoxymethylene resin ( POM), polyethylene resin (eg, low density polyethylene, medium density polyethylene, high density polyethylene, etc.), polypropylene resin, polystyrene resin (eg, syndiotactic polystyrene) Etc.), polybutene resins, polymethyl pentene resins, fluorocarbon resins, and polyimide resins.
As the crystalline resin (excluding the liquid crystal polymer), polyphenylene sulfide resin, polyethylene terephthalate resin, polybutylene terephthalate resin, aromatic polyester resin, polyamide resin, polyoxymethylene resin, and polyimide resin are preferable, and polyphenylene sulfide resin is more preferable. preferable.
　本発明の製造方法において、樹脂成形体３を形成する樹脂は、上記熱可塑性樹脂をベース樹脂とし、これに分子中にヒドロキシ基および／またはエポキシ基を含有する化合物を配合した樹脂組成物である。ベース樹脂である熱可塑性樹脂に対し、ヒドロキシ基および／またはエポキシ基を含有する化合物を配合することにより、樹脂成形体３と板ガラス２との接着性を大幅に向上できる。 In the production method of the present invention, the resin forming the resin molded body 3 is a resin composition in which the thermoplastic resin is used as a base resin and a compound containing a hydroxy group and / or an epoxy group in the molecule is blended. . By blending a hydroxy group and / or an epoxy group-containing compound with the thermoplastic resin as the base resin, the adhesiveness between the resin molded body 3 and the plate glass 2 can be greatly improved.
　〈ヒドロキシ基および／またはエポキシ基を含有する化合物〉
　ヒドロキシ基および／またはエポキシ基を含有する化合物としては、熱可塑性樹脂と加熱溶融する際に発泡や分解しない化合物が好ましい。
　分子中にヒドロキシ基を含有する化合物としては、各種アルコール、ポリビニルアルコール、ポリビニルアルコールの変性体や共重合体、ポリビニルブチラール、エチレングリコール、グリセリン、フェノール、フェノール樹脂、これらをエピクロルヒドリン等を用いて変性した化合物、フェノキシ樹脂、ヒドロキシエチル（メタ）アクリレート（ＨＥＭＡ）、天然高分子（例えば、セルロース、セルロースの誘導体、デンプン、キチン、キトサン、シクロデキストリン、トレハロース、パラチノース、マルトースなど）等が挙げられる。
　また、分子中にエポキシ基を含有する化合物としては、グリシジルアルコール、グリシジル（メタ）アクリレート、エポキシ樹脂等が挙げられる。
　上記ヒドロキシ基および／またはエポキシ基を含有する化合物としては、好ましくはヒドロキシ基またはエポキシ基を含有する高分子化合物であり、より好ましくはヒドロキシ基またはエポキシ基を含有する樹脂である。
　ヒドロキシ基を含有する樹脂としては、フェノキシ樹脂が好ましく、エポキシ基を含有する樹脂としてはエポキシ樹脂が好ましい。
　フェノキシ樹脂としては、ビスフェノールＡ型フェノキシ樹脂、ビスフェノールＦ型フェノキシ樹脂、ビスフェノールＡとビスフェノールＦとの共重合型フェノキシ樹脂が挙げられる。フェノキシ樹脂の質量平均分子量（ＧＰＣ測定によるポリスチレン換算値）は、１０，０００～２００，０００が好ましく、２０，０００～１００，０００がより好ましい。
　フェノキシ樹脂としては、市販のものも選択可能であり、例えば、ＰＫＨＣ、ＰＫＨＨ、ＰＫＨＪ、ＰＫＨＢ、ＰＫＦＥ、ＰＫＨＰ（商品名、以上ＩｎＣｈｅｍ Ｃｏｒｐ．社製）、ＹＰ－５０、ＹＰ－５０Ｓ、ＹＰ－５５、ＹＰ－７０、ＦＸ２３９（商品名、以上東都化成社製)、エピコートＥ１２５６、エピコートＥ４２５０、エピコートＥ４２７５（商品名、以上ユニオンカーバイド社製)、ＵＣＡＲ、ＰＫＨＣ、ＰＫＨＨ（商品名、以上東都化成社製）等を使用できる。これらは、単独で、または２種類以上を組み合わせて使用してもよい。
　ヒドロキシ基を有する高分子化合物中のヒドロキシ基の含有量は、０．０１～２３モル／ｋｇ高分子が好ましく、０．１～１５モル／ｋｇ高分子がより好ましく、１～１０モル／ｋｇ高分子がさらに好ましい。特に、フェノキシ樹脂においては、ヒドロキシ基の含有量の特に好ましい範囲は、３～７モル／ｋｇ高分子（樹脂）であり、最も好ましい範囲は、３～５モル／ｋｇ高分子（樹脂）である。
　エポキシ樹脂としては、ビスフェノールＡ型エポキシ樹脂、ビスフェノールＦ型エポキシ樹脂、ビスフェノールＳ型エポキシ樹脂などのビスフェノール型エポキシ樹脂；フェノールノボラック型エポキシ樹脂、ｏ－クレゾールノボラック型エポキシ樹脂、ビフェニルノボラック型エポキシ樹脂などのノボラック型エポキシ樹脂；ビフェニル型エポキシ樹脂、ナフタレン型エポキシ樹脂、トリフェニルメタン型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、脂環式エポキシ樹脂およびグリシジルエーテル型エポキシ樹脂、グリシジルエステル型エポキシ樹脂などのグリシジル型エポキシ樹脂；等が例示される。これらは単独で、または２種類以上を組み合わせて使用してもよい。
　エポキシ樹脂についても、フェノキシ樹脂と同様に、種々の物性のものが市販されており、その目的に合うものを選択して好適に使用できる。
　エポキシ樹脂の質量平均分子量（ＧＰＣ測定によるポリスチレン換算値）は、７００～２００，０００が好ましく、９００～１００，０００がより好ましい。
　エポキシ基を有する高分子化合物中のエポキシ基の含有量は、０．０１～１０モル／ｋｇ高分子が好ましく、０．１～８モル／ｋｇ高分子がより好ましい。
　フェノキシ樹脂とエポキシ樹脂は、それぞれ単独で用いるほか、両者を併用して用いてもよい。
　本発明においては、熱可塑性樹脂にヒドロキシ基および／またはエポキシ基を含有する化合物を配合した樹脂組成物とする代わりに、当該化合物を上記熱可塑性樹脂に予めグラフトさせたり、当該化合物で変性させることによりヒドロキシ基および／またはエポキシ基等を熱可塑性樹脂に導入したりしてもよい。 <Compound containing a hydroxy group and / or an epoxy group>
The compound containing a hydroxy group and / or an epoxy group is preferably a compound that does not foam or decompose when heated and melted with a thermoplastic resin.
As the compound containing a hydroxy group in the molecule, various alcohols, polyvinyl alcohol, modified polyvinyl alcohols and copolymers, polyvinyl butyral, ethylene glycol, glycerin, phenol, phenol resin, and these were modified with epichlorohydrin or the like. Examples thereof include compounds, phenoxy resins, hydroxyethyl (meth) acrylate (HEMA), natural polymers (for example, cellulose, cellulose derivatives, starch, chitin, chitosan, cyclodextrin, trehalose, palatinose, maltose, and the like).
Moreover, glycidyl alcohol, a glycidyl (meth) acrylate, an epoxy resin etc. are mentioned as a compound containing an epoxy group in a molecule | numerator.
The compound containing a hydroxy group and / or an epoxy group is preferably a polymer compound containing a hydroxy group or an epoxy group, and more preferably a resin containing a hydroxy group or an epoxy group.
The resin containing a hydroxy group is preferably a phenoxy resin, and the resin containing an epoxy group is preferably an epoxy resin.
Examples of the phenoxy resin include a bisphenol A type phenoxy resin, a bisphenol F type phenoxy resin, and a copolymer type phenoxy resin of bisphenol A and bisphenol F. The mass average molecular weight (polystyrene conversion value by GPC measurement) of the phenoxy resin is preferably 10,000 to 200,000, and more preferably 20,000 to 100,000.
As the phenoxy resin, a commercially available product can be selected. For example, PKHC, PKHH, PKHJ, PKHB, PKFE, PKHP (trade name, manufactured by InChem Corp.), YP-50, YP-50S, YP-55. , YP-70, FX239 (trade name, manufactured by Toto Kasei), Epicoat E1256, Epicoat E4250, Epicoat E4275 (trade name, manufactured by Union Carbide), UCAR, PKHC, PKHH (trade name, manufactured by Toto Kasei) ) Etc. can be used. These may be used alone or in combination of two or more.
The hydroxy group content in the polymer compound having a hydroxy group is preferably from 0.01 to 23 mol / kg, more preferably from 0.1 to 15 mol / kg, and more preferably from 1 to 10 mol / kg. More preferred are molecules. In particular, in the phenoxy resin, the particularly preferable range of the hydroxy group content is 3 to 7 mol / kg polymer (resin), and the most preferable range is 3 to 5 mol / kg polymer (resin). .
Epoxy resins include bisphenol A type epoxy resins, bisphenol F type epoxy resins, bisphenol S type epoxy resins and other bisphenol type epoxy resins; phenol novolac type epoxy resins, o-cresol novolak type epoxy resins, biphenyl novolak type epoxy resins, etc. Novolac type epoxy resins; biphenyl type epoxy resins, naphthalene type epoxy resins, triphenylmethane type epoxy resins, dicyclopentadiene type epoxy resins, alicyclic epoxy resins and glycidyl ether type epoxy resins, glycidyl ester type epoxy resins, etc. An epoxy resin; etc. are illustrated. These may be used alone or in combination of two or more.
As for the epoxy resin, as with the phenoxy resin, those having various physical properties are commercially available, and those suitable for the purpose can be selected and used suitably.
The mass average molecular weight (polystyrene conversion value by GPC measurement) of the epoxy resin is preferably 700 to 200,000, and more preferably 900 to 100,000.
The content of the epoxy group in the polymer compound having an epoxy group is preferably 0.01 to 10 mol / kg polymer, more preferably 0.1 to 8 mol / kg polymer.
The phenoxy resin and the epoxy resin may be used alone or in combination.
In the present invention, instead of preparing a resin composition in which a compound containing a hydroxy group and / or an epoxy group is blended with a thermoplastic resin, the compound is previously grafted to the thermoplastic resin or modified with the compound. A hydroxy group and / or an epoxy group may be introduced into the thermoplastic resin.
　〈配合割合〉
　本発明において、上述した分子中にヒドロキシ基を含有する化合物および／またはエポキシ基を含有する化合物の配合量は、熱可塑性樹脂１００質量部に対して、１～９０質量部が好ましく、３～８０質量部がより好ましい。
　上記化合物の配合量があまり少ないと、樹脂組成物と板ガラス２との十分な接着性が得られない場合があり、また、配合量があまり多いと、ベース樹脂である熱可塑性樹脂の基本的な特性が阻害され、強度の高い樹脂成形体３自体を得ることが困難となったり、接着性もむしろ悪化したりする場合があるが、配合量がこの範囲であれば、樹脂組成物と板ガラス２との接着性に優れ、樹脂成形体３の強度に優れる。 <Combination ratio>
In the present invention, the compounding amount of the compound containing a hydroxy group and / or the compound containing an epoxy group in the molecule is preferably 1 to 90 parts by weight with respect to 100 parts by weight of the thermoplastic resin. Part by mass is more preferable.
When the compounding amount of the above compound is too small, sufficient adhesion between the resin composition and the plate glass 2 may not be obtained. When the compounding amount is too large, the basic resin of the thermoplastic resin as the base resin may not be obtained. The properties are hindered, and it may be difficult to obtain a high-strength resin molded body 3 itself, or the adhesiveness may rather deteriorate. If the blending amount is within this range, the resin composition and the plate glass 2 The resin molded body 3 has excellent strength.
　〈充填剤等〉
　さらに、本発明における樹脂組成物には、本発明の目的を損なわない範囲で充填材を配合できる。繊維状の充填材としては、ガラス繊維、カーボン繊維、チタン酸カリウム繊維、ホウ酸アルミニウム繊維、金属繊維などの無機繊維；アラミド繊維、ビニロン繊維、麻繊維などの有機繊維；等が挙げられる。粉粒状、球状、ブレーク状、針状、板状等の種々の形状の充填材としては、シリカ、アルミナ、タルク、クレー、カオリン、水酸化アルミニウム、水酸化マグネシウム、炭酸カルシウム等が挙げられる。板状の充填材としては、マイカ、ガラスブレーク等が挙げられる。中空状の充填材としては、シラスバルーン、ガラスバルーン、各種樹脂バルーン等が挙げられる。これらの充填材は、１種または２種以上を併用できる。 <Fillers etc.>
Furthermore, a filler can be mix | blended with the resin composition in this invention in the range which does not impair the objective of this invention. Examples of the fibrous filler include inorganic fibers such as glass fibers, carbon fibers, potassium titanate fibers, aluminum borate fibers, and metal fibers; organic fibers such as aramid fibers, vinylon fibers, and hemp fibers. Examples of fillers having various shapes such as powder, sphere, break, needle, and plate include silica, alumina, talc, clay, kaolin, aluminum hydroxide, magnesium hydroxide, and calcium carbonate. Examples of the plate-like filler include mica and glass break. Examples of the hollow filler include shirasu balloons, glass balloons, and various resin balloons. These fillers can be used alone or in combination of two or more.
　本発明における樹脂組成物には、さらに、本発明の目的を逸脱しない範囲で、着色剤、顔料、熱安定剤、酸化防止剤、安定化剤、紫外線吸収剤、相溶化剤、分散剤、滑剤、離型剤、その他の添加剤を配合できる。また、補助的に、少量の他の熱可塑性樹脂も配合できる。 The resin composition of the present invention further includes a colorant, a pigment, a heat stabilizer, an antioxidant, a stabilizer, an ultraviolet absorber, a compatibilizer, a dispersant, and a lubricant without departing from the object of the present invention. , Mold release agents, and other additives can be blended. In addition, a small amount of other thermoplastic resins can be blended.
　〈樹脂組成物の調製〉
　本発明における樹脂組成物の調製は、種々の公知の方法で実施可能である。例えば、所定割合の熱可塑性樹脂、分子中にヒドロキシ基および／またはエポキシ基を含有する化合物、さらに必要に応じて充填剤等の成分を、Ｖ型ブレンダーやヘンシェルミキサーなどにより予備混合したのち、押出機により溶融混練する方法が挙げられる。また、各成分をそれぞれ個別に押出機に供給して溶融混練することもできる。 <Preparation of resin composition>
The resin composition in the present invention can be prepared by various known methods. For example, a predetermined proportion of a thermoplastic resin, a compound containing a hydroxyl group and / or an epoxy group in the molecule, and, if necessary, a component such as a filler are premixed with a V-type blender or a Henschel mixer, and then extruded. The method of melt-kneading with a machine is mentioned. Also, each component can be individually supplied to an extruder and melt kneaded.
　〈樹脂の形状〉
　樹脂成形体３となる樹脂の成形形状に関しては、金型形状の設計によって、適用機器に必要な加工を施すことできる。例えば、スピーカー、スイッチボタン、端子用に孔を空けたり、本体側と本カバーガラスの組み立て用のフック構造をもたせたり、筺体としての強度補強するための梁構造を裏側に組み込んだりできる。 <Resin shape>
With respect to the molded shape of the resin to be the resin molded body 3, it is possible to perform processing necessary for the applied device by designing the mold shape. For example, holes can be made for speakers, switch buttons, and terminals, a hook structure for assembling the main body side and the cover glass can be provided, or a beam structure for reinforcing the strength as a housing can be incorporated on the back side.
　〈樹脂表面の加飾〉
　樹脂成形体３となる樹脂の表面は、用途やデザインに応じ、任意に加飾を施してもよい。例えば、金型にエンボス処理しておくことにより、樹脂表面をエンボス加工することができる。また樹脂成形時に金型内の加飾面側にインモールド転写箔を挿入し、樹脂成形と同時に加飾を行ってもよい。 <Decoration of resin surface>
The surface of the resin to be the resin molded body 3 may be optionally decorated depending on the application and design. For example, by embossing the mold, the resin surface can be embossed. In addition, an in-mold transfer foil may be inserted on the decorative surface side in the mold during resin molding, and decoration may be performed simultaneously with resin molding.
　また成形加工後に、各種印刷方式により塗装することも可能である。この場合、樹脂の側面も加飾することが必要となる場合には、三次元加飾ができる方式が好ましい。例えば、インクジェット印刷、パッド印刷、スクリーン印刷、グラビヤオフセット印刷などにより任意の加飾を行うことができる。これらの方法によれば、加飾層表面に保護層としてハードコート層を同時に設けることも可能である。樹脂表面の加飾加工時に同時にガラスの周辺部にも加飾を実施してもよい。その場合、より一体感のあるデザインが得られる。 Also, it can be painted by various printing methods after molding. In this case, when it is necessary to decorate the side surface of the resin, a method capable of three-dimensional decoration is preferable. For example, arbitrary decoration can be performed by inkjet printing, pad printing, screen printing, gravure offset printing, or the like. According to these methods, it is also possible to simultaneously provide a hard coat layer as a protective layer on the decorative layer surface. You may decorate the peripheral part of glass simultaneously with the decoration process of the resin surface. In that case, a more integrated design can be obtained.
　なお、樹脂の表面に加飾を施す場合には、予め印刷の膜厚を考慮に入れて、樹脂成形時に印刷の膜厚分だけ樹脂の高さが低くなるように形成しても構わない。そうすることで、樹脂表面の加飾層と板ガラスのガラス表面とを面一にすることができるため好ましい。 In addition, when decorating the surface of the resin, it may be formed so that the height of the resin is lowered by an amount corresponding to the thickness of the printing in consideration of the thickness of the printing in advance. By doing so, since the decorating layer of the resin surface and the glass surface of plate glass can be made into the same surface, it is preferable.
［表示装置用カバーガラスの製造方法］
　次に、本発明の表示装置用カバーガラスを製造する、表示装置用カバーガラスの製造方法（以下、便宜的に「本発明の製造方法」ともいう）について、図７～図１１に基づいて説明する。
　なお、図７、図８および図１１では、表示装置用カバーガラス１の機能膜４および接着剤５の図示を省略しており、また、表示装置用カバーガラス１の形態も、図１～図４に基づいて説明した形態と異なっている。 [Method for producing cover glass for display device]
Next, a manufacturing method of the display device cover glass of the present invention (hereinafter also referred to as “the manufacturing method of the present invention” for convenience) will be described with reference to FIGS. To do.
7, 8 and 11, the functional film 4 and the adhesive 5 of the display device cover glass 1 are not shown, and the form of the display device cover glass 1 is also shown in FIGS. This is different from the embodiment described based on FIG.
　本発明の製造方法としては、例えば、以下に説明するガラス樹脂一体成形品の製造方法が好適に挙げられる。そこで、以下では、まず、ガラス樹脂一体成形品の製造方法に用いるガラス樹脂一体成形品の製造装置について説明する。 As a production method of the present invention, for example, a method for producing a glass resin integrated molded product described below can be preferably cited. Therefore, in the following, first, a manufacturing apparatus for a glass resin integrated molded product used in a method for manufacturing a glass resin integrated molded product will be described.
 〔ガラス樹脂一体成形品の製造装置〕
　図７は、ガラス樹脂一体成形品の製造装置の一実施形態を示す正面断面図である。
　図７に示すように、本実施の形態のガラス樹脂一体成形品の製造装置（ガラス樹脂一体成形品製造装置）１０は、金型１２と、金型１２の型締め装置（不図示）と、型締めした金型１２によって形成されるキャビティ空間１４に樹脂を射出する射出装置（不図示）と、装置全体の動作を統括制御する制御装置（不図示）と、を備えて構成される。 [Production equipment for glass resin integrated molded products]
FIG. 7 is a front cross-sectional view showing an embodiment of a manufacturing apparatus for a glass resin integrated molded product.
As shown in FIG. 7, a glass resin integrated molded product manufacturing apparatus (glass resin integrated molded product manufacturing apparatus) 10 according to the present embodiment includes a mold 12, a mold clamping device (not shown) of the mold 12, An injection device (not shown) for injecting resin into the cavity space 14 formed by the clamped mold 12 and a control device (not shown) for overall control of the operation of the entire device are configured.
　〈金型〉
　金型１２は、鉛直方向上側に配置される第１の金型としての可動側金型１６と、鉛直方向下側に配置される第２の金型としての固定側金型１８と、を備えて構成される。 <Mold>
The mold 12 includes a movable mold 16 as a first mold disposed on the upper side in the vertical direction, and a fixed mold 18 as a second mold disposed on the lower side in the vertical direction. Configured.
　《可動側金型》
　可動側金型１６は、入れ子構造で構成され、樹脂成形体３の樹脂材料が射出される空間を形成する可動側キャビティブロック２０と、その可動側キャビティブロック２０が取り付けられる可動側モールド２２と、を備えて構成される。
　可動側キャビティブロック２０は、直方体形状を有し、固定側金型１８と対向する面（鉛直方向下側の面）に可動側凹部２０Ａを備える。この可動側凹部２０Ａは、ガラス樹脂一体成形品である表示装置用カバーガラス１を上下に二分割したときの上側（ガラス表面２ａ側）の形状に対応した形状を有する。 《Movable mold》
The movable-side mold 16 has a nested structure, and a movable-side cavity block 20 that forms a space in which the resin material of the resin molded body 3 is injected, a movable-side mold 22 to which the movable-side cavity block 20 is attached, It is configured with.
The movable-side cavity block 20 has a rectangular parallelepiped shape, and includes a movable-side concave portion 20 </ b> A on a surface facing the fixed-side mold 18 (surface on the lower side in the vertical direction). 20 A of this movable side recessed part has a shape corresponding to the shape of the upper side (glass surface 2a side) when the cover glass 1 for display apparatuses which is a glass resin integrated molded product is divided into 2 parts up and down.
　ところで、金型１２内においては、後述する板ガラス載置面２８Ａ１上に板ガラス２が載置される。この板ガラス２のガラス表面２ａ上には、機能膜４があらかじめ形成されていても形成されていなくてもよいが、機能膜４の有無に応じて、可動側凹部２０Ａの形状が異なる。
　すなわち、例えば、あらかじめ機能膜４が形成されている板ガラス２を用いる場合、可動側凹部２０Ａの形状は、機能膜４の膜表面４ａに接する面と樹脂成形体３の樹脂表面３ａに接する面とが一連の平坦な面で構成された形状にする。
　一方、機能膜４が形成されていない板ガラス２を用いる場合、可動側凹部２０Ａの形状は、ガラス表面２ａに接する面を、樹脂表面３ａに接する面よりも、後に形成される機能膜４の厚さ分だけ突出させた形状にする。
　このような可動側凹部２０Ａの形状とすることにより、膜表面４ａと樹脂表面３ａとが面一である表示装置用カバーガラス１が得られる。 By the way, in the metal mold | die 12, the plate glass 2 is mounted on the plate glass mounting surface 28A1 mentioned later. The functional film 4 may or may not be formed in advance on the glass surface 2 a of the plate glass 2, but the shape of the movable side recess 20 </ b> A differs depending on the presence or absence of the functional film 4.
That is, for example, when the plate glass 2 on which the functional film 4 is formed in advance is used, the shape of the movable side recess 20A is such that the surface in contact with the film surface 4a of the functional film 4 and the surface in contact with the resin surface 3a of the resin molded body 3 Is formed by a series of flat surfaces.
On the other hand, when the plate glass 2 on which the functional film 4 is not formed is used, the shape of the movable recess 20A is such that the surface in contact with the glass surface 2a is thicker than the surface in contact with the resin surface 3a. Make the shape protruding by that much.
By setting it as the shape of such a movable side recessed part 20A, the cover glass 1 for display apparatuses in which the film | membrane surface 4a and the resin surface 3a are the same surface is obtained.
　可動側モールド２２は、固定側金型１８と対向する面（鉛直方向下側の面）に可動側キャビティブロック２０を装着するための可動側キャビティブロック装着部２２Ａを備える。この可動側キャビティブロック装着部２２Ａは、可動側キャビティブロック２０が嵌合可能な凹部として構成される。可動側キャビティブロック２０は、この可動側キャビティブロック装着部２２Ａに嵌め込み、図示しない締結手段を用いて可動側モールド２２に固定することにより、可動側モールド２２に装着される。 The movable-side mold 22 includes a movable-side cavity block mounting portion 22A for mounting the movable-side cavity block 20 on a surface facing the fixed-side mold 18 (surface on the lower side in the vertical direction). The movable cavity block mounting portion 22A is configured as a recess into which the movable cavity block 20 can be fitted. The movable-side cavity block 20 is mounted on the movable-side mold 22 by fitting into the movable-side cavity block mounting portion 22A and fixing the movable-side cavity block 20 to the movable-side mold 22 using fastening means (not shown).
　《固定側金型》
　固定側金型１８も、可動側金型１６と同様に入れ子構造で構成され、樹脂成形体３の樹脂材料が射出される空間を形成する固定側キャビティブロック２４と、その固定側キャビティブロック２４が取り付けられる固定側モールド２６と、を備えて構成される。 《Fixed side mold》
Similarly to the movable mold 16, the fixed mold 18 has a nested structure, and a fixed cavity block 24 that forms a space in which the resin material of the resin molded body 3 is injected, and the fixed cavity block 24 includes And a fixed mold 26 to be attached.
　固定側キャビティブロック２４は、直方体形状を有し、可動側金型１６と対向する面に固定側凹部２４Ａを備える。この固定側凹部２４Ａは、ガラス樹脂一体成形品である表示装置用カバーガラス１を上下に二分割したときの下側（ガラス裏面２ｂ側）の形状に対応した形状を有する。
　この固定側キャビティブロック２４は、板ガラス２を保持する板ガラス保持ブロック２８（第１の可動部）と、キャビティ空間１４を形成する部位であるキャビティ空間形成ブロック３０と、を入れ子状に組み合わせて構成される。この点については、後述する。
　固定側モールド２６は、可動側金型１６と対向する面（鉛直方向上側の面）に固定側キャビティブロック２４を装着するための固定側キャビティブロック装着部２６Ａを備える。この固定側キャビティブロック装着部２６Ａは、固定側キャビティブロック２４が嵌合可能な凹部として構成される。固定側キャビティブロック２４は、この固定側キャビティブロック装着部２６Ａに嵌め込むことにより、固定側モールド２６に装着される。 The fixed-side cavity block 24 has a rectangular parallelepiped shape, and includes a fixed-side recess 24 </ b> A on a surface facing the movable-side mold 16. The fixed-side recess 24A has a shape corresponding to the shape on the lower side (the glass back surface 2b side) when the display device cover glass 1 which is a glass resin integrated molded product is divided into two vertically.
The fixed-side cavity block 24 is configured by nesting a plate glass holding block 28 (first movable portion) that holds the plate glass 2 and a cavity space forming block 30 that is a part that forms the cavity space 14. The This point will be described later.
The fixed-side mold 26 includes a fixed-side cavity block mounting portion 26A for mounting the fixed-side cavity block 24 on a surface facing the movable mold 16 (surface on the upper side in the vertical direction). The fixed-side cavity block mounting portion 26A is configured as a recess into which the fixed-side cavity block 24 can be fitted. The fixed-side cavity block 24 is mounted on the fixed-side mold 26 by fitting into the fixed-side cavity block mounting portion 26A.
　上記のように、固定側キャビティブロック２４は、板ガラス保持ブロック２８と、キャビティ空間形成ブロック３０と、を組み合わせて構成される。
　板ガラス保持ブロック２８は、板ガラス保持部２８Ａと、基部２８Ｂと、を備えて構成される。
　板ガラス保持部（ガラス部材保持部）２８Ａは、板ガラス２の形状に対応した外形を有し、その鉛直方向上側に板ガラス２を載置するための板ガラス載置面２８Ａ１を備える。板ガラス載置面２８Ａ１は、平坦な面で構成される。また、板ガラス保持部２８Ａは、鉛直方向下側にガイド用凸部２８Ａ２を備える。
　基部２８Ｂは、板ガラス保持部２８Ａのガイド部として機能し、その鉛直方向上部に板ガラス保持部２８Ａのガイド用凸部２８Ａ２が嵌合されるガイド用凹部２８Ｂ１を備える。板ガラス保持部２８Ａは、ガイド用凸部２８Ａ２がガイド用凹部２８Ｂ１に嵌合されることにより、図７に矢印Ａで示す金型１２の型締め方向Ａに沿う方向に移動可能に支持される。
　また、基部２８Ｂは、ガラス保持圧力調整手段としての複数のガラス保持圧力調整用シリンダ（ガラス保持圧力調整用シリンダ）３２を備える。各ガラス保持圧力調整用シリンダ３２は、同期して作動し、板ガラス保持部２８Ａを金型１２の型締め方向に沿う方向に移動させる。 As described above, the fixed-side cavity block 24 is configured by combining the plate glass holding block 28 and the cavity space forming block 30.
The plate glass holding block 28 includes a plate glass holding portion 28A and a base portion 28B.
The plate glass holding portion (glass member holding portion) 28A has an outer shape corresponding to the shape of the plate glass 2, and includes a plate glass placement surface 28A1 for placing the plate glass 2 on the upper side in the vertical direction. The plate glass placement surface 28A1 is a flat surface. Further, the plate glass holding portion 28A includes a guide convex portion 28A2 on the lower side in the vertical direction.
The base portion 28B functions as a guide portion of the plate glass holding portion 28A, and includes a guide concave portion 28B1 into which the guide convex portion 28A2 of the plate glass holding portion 28A is fitted. The plate glass holding portion 28A is supported so as to be movable in a direction along the mold clamping direction A of the mold 12 indicated by an arrow A in FIG. 7 by fitting the guide convex portion 28A2 to the guide concave portion 28B1.
The base portion 28B includes a plurality of glass holding pressure adjusting cylinders (glass holding pressure adjusting cylinders) 32 as glass holding pressure adjusting means. Each glass holding pressure adjusting cylinder 32 operates in synchronization, and moves the plate glass holding portion 28 </ b> A in a direction along the mold clamping direction of the mold 12.
　キャビティ空間形成ブロック３０は、中空状の外ブロック３０Ａと、中空状の内ブロック（第２の可動部）３０Ｂと、を入れ子状に組み合わせて構成される。
　外ブロック３０Ａは、断面が矩形の筒形状を有し、その中空部に内ブロック３０Ｂが摺動可能に配置される。
　固定側キャビティブロック２４が、固定側キャビティブロック装着部２６Ａに装着されると、キャビティ空間形成ブロック３０は、外ブロック３０Ａが、固定側キャビティブロック装着部２６Ａの底面に載置される。これにより、外ブロック３０Ａが固定される。
　また、板ガラス保持ブロック２８は、固定側キャビティブロック２４が、固定側キャビティブロック装着部２６Ａに装着されると、基部２８Ｂが固定側キャビティブロック装着部２６Ａの底面に載置される。これにより、基部２８Ｂが固定され、ガラス保持圧力調整用シリンダ３２を用いて板ガラス保持部２８Ａを移動させることが可能になる。 The cavity space forming block 30 is configured by combining a hollow outer block 30A and a hollow inner block (second movable portion) 30B in a nested manner.
The outer block 30A has a cylindrical shape with a rectangular cross section, and the inner block 30B is slidably disposed in the hollow portion.
When the fixed-side cavity block 24 is mounted on the fixed-side cavity block mounting portion 26A, the cavity space forming block 30 is placed on the bottom surface of the fixed-side cavity block mounting portion 26A. Thereby, the outer block 30A is fixed.
Further, when the fixed-side cavity block 24 is mounted on the fixed-side cavity block mounting portion 26A, the base 28B is placed on the bottom surface of the fixed-side cavity block mounting portion 26A. Accordingly, the base portion 28B is fixed, and the glass plate holding portion 28A can be moved using the glass holding pressure adjusting cylinder 32.
　固定側モールド２６には、樹脂加圧手段としての複数の樹脂加圧用シリンダ３４が備えられる。各樹脂加圧用シリンダ３４は、同期して作動し、キャビティ空間形成ブロック３０の内ブロック３０Ｂを型締め方向に沿う方向に移動させる。これにより、キャビティ空間１４の容積を可変でき、キャビティ空間１４に充填された樹脂を加圧できる。
　ここで、内ブロック３０Ｂは、樹脂注入時は、あらかじめ設定された「樹脂注入時位置」に位置し、樹脂注入後、樹脂加圧用シリンダ３４に駆動されて、あらかじめ設定された「樹脂加圧位置」に移動する。この樹脂加圧位置は、樹脂注入時位置よりも鉛直方向上方の位置に設定され、キャビティ空間１４の容積を所定量縮小させる位置に設定される。 The stationary mold 26 is provided with a plurality of resin pressurizing cylinders 34 as resin pressurizing means. Each resin pressurizing cylinder 34 operates in synchronization, and moves the inner block 30B of the cavity space forming block 30 in a direction along the mold clamping direction. Thereby, the volume of the cavity space 14 can be varied, and the resin filled in the cavity space 14 can be pressurized.
Here, the inner block 30B is positioned at a “resin injection position” set at the time of resin injection, and is driven by the resin pressurizing cylinder 34 after the resin injection to set a “resin pressurization position”. To "". This resin pressurization position is set to a position vertically above the resin injection position, and is set to a position where the volume of the cavity space 14 is reduced by a predetermined amount.
　金型１２は、以上のように構成される。板ガラス載置面２８Ａ１に板ガラス２を載置して、金型１２を型締めすると、固定側金型１８と可動側金型１６とによって板ガラス２が挟持される。樹脂の加圧に連携して板ガラス２の周囲にキャビティ空間１４が形成される。
　ここで、板ガラス２が載置された板ガラス保持ブロック２８の板ガラス保持部２８Ａは、ガラス保持圧力調整用シリンダ３２によって、キャビティ空間形成ブロック３０とは独立して移動可能に設けられている。このため、ガラス保持圧力調整用シリンダ３２によって板ガラス保持部２８Ａを移動させることにより、板ガラス２に作用する圧力を独立して調整できる。
　また、キャビティ空間１４を形成するキャビティ空間形成ブロック３０は、内ブロック３０Ｂが樹脂加圧用シリンダ３４によって移動可能に設けられている。このため、樹脂加圧用シリンダ３４によってキャビティ空間形成ブロック３０を移動させることにより、キャビティ空間１４に充填された樹脂を加圧することができる。
　なお、樹脂は、可動側金型１６から注入される。可動側金型１６には、樹脂の流路であるスプルー３６及びゲート３８が備えられる。射出装置を介してスプルー３６に注入された樹脂は、スプルー３６からゲート３８を介して、キャビティ空間１４に注入される。 The mold 12 is configured as described above. When the plate glass 2 is placed on the plate glass placement surface 28 </ b> A <b> 1 and the mold 12 is clamped, the plate glass 2 is sandwiched between the fixed side mold 18 and the movable side mold 16. A cavity space 14 is formed around the plate glass 2 in cooperation with the pressurization of the resin.
Here, the plate glass holding portion 28 </ b> A of the plate glass holding block 28 on which the plate glass 2 is placed is provided to be movable independently of the cavity space forming block 30 by the glass holding pressure adjusting cylinder 32. For this reason, the pressure which acts on the plate glass 2 can be adjusted independently by moving the plate glass holding | maintenance part 28A with the cylinder 32 for glass holding pressure adjustment.
The cavity space forming block 30 that forms the cavity space 14 is provided such that the inner block 30 </ b> B can be moved by the resin pressurizing cylinder 34. Therefore, the resin filled in the cavity space 14 can be pressurized by moving the cavity space forming block 30 by the resin pressurizing cylinder 34.
The resin is injected from the movable mold 16. The movable mold 16 is provided with a sprue 36 and a gate 38 which are resin flow paths. The resin injected into the sprue 36 through the injection device is injected into the cavity space 14 from the sprue 36 through the gate 38.
　〈型締め装置〉
　型締め装置（不図示）は、固定側金型１８に対して可動側金型１６を進退移動させて、金型１２を開閉する。可動側金型１６を固定側金型１８に近づく方向に移動させることにより、金型１２が型締めされ、可動側金型１６を固定側金型１８から離れる方向に移動させることにより、金型１２が開かれる。 <Clamping device>
A mold clamping device (not shown) opens and closes the mold 12 by moving the movable mold 16 forward and backward with respect to the fixed mold 18. The mold 12 is clamped by moving the movable mold 16 in a direction approaching the fixed mold 18, and the mold is moved by moving the movable mold 16 in a direction away from the fixed mold 18. 12 is opened.
　〈射出装置〉
　射出装置（不図示）は、樹脂注入手段として機能し、金型１２のスプルー３６を介してキャビティ空間１４に樹脂を注入する。 <Injection device>
The injection device (not shown) functions as a resin injection means, and injects resin into the cavity space 14 via the sprue 36 of the mold 12.
　〈制御装置〉
　制御装置（不図示）は、装置全体の動作を統括制御する。すなわち、型締め装置を制御して、金型１２の開閉を制御する。また、射出装置を制御して、樹脂の注入を制御する。
　また、制御装置は、樹脂加圧用シリンダ３４を制御して、キャビティ空間１４に充填された樹脂の加圧を制御する（すなわち、樹脂加圧用シリンダ制御手段として機能）。更に、制御装置は、樹脂加圧用シリンダ３４による樹脂の加圧に連携して、ガラス保持圧力調整用シリンダ３２を制御し、板ガラス２に作用するガラス保持圧力を制御する（すなわち、ガラス保持圧力制御手段及びガラス保持圧力調整用シリンダ制御手段として機能）。 <Control device>
A control device (not shown) controls the overall operation of the device. That is, the mold clamping device is controlled to control the opening and closing of the mold 12. In addition, the injection device is controlled to control the injection of the resin.
Further, the control device controls the resin pressurization cylinder 34 to control the pressurization of the resin filled in the cavity space 14 (that is, functions as a resin pressurization cylinder control means). Further, the control device controls the glass holding pressure adjusting cylinder 32 in cooperation with the resin pressurization by the resin pressurizing cylinder 34 to control the glass holding pressure acting on the plate glass 2 (that is, the glass holding pressure control). And function as cylinder control means for adjusting the glass holding pressure).
　〔ガラス樹脂一体成形品の製造方法〕
　次に、ガラス樹脂一体成形品製造装置１０を用いた、ガラス樹脂一体成形品である表示装置用カバーガラスの製造方法について説明する。 [Production method of glass resin integrated molded product]
Next, the manufacturing method of the cover glass for display apparatuses which is a glass resin integrated molded product using the glass resin integrated molded product manufacturing apparatus 10 is demonstrated.
　図８（Ａ）～（Ｆ）は、ガラス樹脂一体成形品製造装置１０を用いた、ガラス樹脂一体成形品である表示装置用カバーガラス１の製造手順を示す図である。
　図８（Ａ）に示すように、初期状態において、金型１２は開かれており、可動側金型１６が固定側金型１８から所定高さの位置に位置する。また、この状態において、固定側金型１８に備えられた内ブロック３０Ｂは樹脂注入時位置に位置する。 FIGS. 8A to 8F are diagrams showing a procedure for manufacturing the cover glass 1 for a display device, which is a glass resin integrated molded product, using the glass resin integrated molded product manufacturing apparatus 10.
As shown in FIG. 8A, in the initial state, the mold 12 is opened, and the movable mold 16 is positioned at a predetermined height from the fixed mold 18. Further, in this state, the inner block 30B provided in the fixed side mold 18 is located at the resin injection position.
　まず、図８（Ｂ）に示すように、金型１２内に板ガラス２を配置する。板ガラス２は、固定側金型１８に備えられた板ガラス保持ブロック２８の板ガラス載置面２８Ａ１の上に載置して、金型１２に配置する。 First, as shown in FIG. 8B, the plate glass 2 is placed in the mold 12. The plate glass 2 is placed on the plate glass placement surface 28 </ b> A <b> 1 of the plate glass holding block 28 provided in the fixed side mold 18 and placed on the mold 12.
　このとき、本発明においては、あらかじめ板ガラス２のガラス側面２ｃに接着剤５を塗布（第２の実施形態の場合には、板ガラス板２のガラス裏面２ｂの縁にも塗布）しておく。そして、接着剤５を塗布しておいた板ガラス２を、板ガラス載置面２８Ａ１の上に載置する。 At this time, in the present invention, the adhesive 5 is previously applied to the glass side surface 2c of the plate glass 2 (in the case of the second embodiment, it is also applied to the edge of the glass back surface 2b of the plate glass plate 2). And the plate glass 2 which has apply | coated the adhesive agent 5 is mounted on the plate glass mounting surface 28A1.
　また、上述したように、ここで用いる板ガラス２としては、ガラス表面２ａ上に機能膜４があらかじめ形成された板ガラス２であっても、機能膜４が形成されていない板ガラス２であってもよく、機能膜４の有無に応じて、可動側凹部２０Ａの形状を異ならせる。
　なお、板ガラス２のガラス表面２ａ上に機能膜４をあらかじめ形成しておく場合、機能膜４は、例えば、上述した方法によりガラス表面２ａ上に成膜したりフィルムを貼ったりすることにより形成しておく。 Moreover, as above-mentioned, as the plate glass 2 used here, even if it is the plate glass 2 in which the functional film 4 was previously formed on the glass surface 2a, the plate glass 2 in which the functional film 4 was not formed may be sufficient. Depending on the presence or absence of the functional film 4, the shape of the movable side recess 20 </ b> A is varied.
When the functional film 4 is formed in advance on the glass surface 2a of the plate glass 2, the functional film 4 is formed by, for example, forming a film on the glass surface 2a or pasting a film by the method described above. Keep it.
　次に、図８（Ｃ）に示すように、図示しない型締め装置によって可動側金型１６を固定側金型１８に向けて移動させ、金型１２を型締めする。これにより、板ガラス２が、固定側金型１８と可動側金型１６とに挟持されるとともに、その板ガラス２の周囲にキャビティ空間１４が形成される。
　このとき、板ガラス２に作用する圧力が、所定の圧力となるように、ガラス保持圧力調整用シリンダ３２が制御され、板ガラス保持部２８Ａの位置が制御される。
　次に、図８（Ｄ）に示すように、射出装置（不図示）によってキャビティ空間１４に樹脂を注入し、キャビティ空間１４に樹脂を充填する。 Next, as shown in FIG. 8C, the movable side mold 16 is moved toward the fixed side mold 18 by a mold clamping device (not shown), and the mold 12 is clamped. Accordingly, the plate glass 2 is sandwiched between the fixed mold 18 and the movable mold 16, and a cavity space 14 is formed around the plate glass 2.
At this time, the glass holding pressure adjusting cylinder 32 is controlled so that the pressure acting on the plate glass 2 becomes a predetermined pressure, and the position of the plate glass holding portion 28A is controlled.
Next, as shown in FIG. 8D, a resin is injected into the cavity space 14 by an injection device (not shown), and the cavity space 14 is filled with the resin.
　次に、図８（Ｅ）に示すように、樹脂加圧用シリンダ３４によって内ブロック３０Ｂは樹脂加圧位置に移動させ、キャビティ空間１４に充填された樹脂を所定の樹脂圧縮圧力で加圧しながら樹脂加圧成形する。これにより、樹脂成形体３にヒケが生じるのを防止できる。 Next, as shown in FIG. 8 (E), the inner block 30B is moved to the resin pressurization position by the resin pressurizing cylinder 34, and the resin filled in the cavity space 14 is pressurized with a predetermined resin compression pressure. Press molding. Thereby, it is possible to prevent sink marks from occurring in the resin molded body 3.
　そして、これにより、機能膜４があらかじめ形成されている板ガラス２を用いた場合には、膜表面４ａと樹脂表面３ａとの継ぎ目に段差や隙間を生じさせることなく、膜表面４ａと樹脂表面３ａとを面一にして、板ガラス２の周囲に接着剤５を介して樹脂成形体３を一体成形できる。
　また、機能膜４が形成されていない板ガラス２を用いた場合には、後に形成される機能膜４の厚さ分だけガラス表面２ａを樹脂主面３ａよりも凹ませて、板ガラス２の周囲に樹脂成形体３を一体成形できる。 Thus, when the plate glass 2 on which the functional film 4 is formed in advance is used, the film surface 4a and the resin surface 3a are not produced at the joint between the film surface 4a and the resin surface 3a without causing a step or a gap. The resin molded body 3 can be integrally formed around the plate glass 2 with an adhesive 5 interposed therebetween.
Further, when the plate glass 2 on which the functional film 4 is not formed is used, the glass surface 2a is recessed from the resin main surface 3a by the thickness of the functional film 4 to be formed later, around the plate glass 2. The resin molded body 3 can be integrally molded.
　一方、このように樹脂を加圧すると、板ガラス２に高い圧力が作用し、板ガラス２に割れや位置ズレが生じるおそれがある。
　そこで、樹脂の加圧に連携してガラス保持圧力調整用シリンダ３２によって板ガラス保持部２８Ａの位置を制御し、板ガラス２に作用する圧力が規定範囲内に収まるように制御する。
　ここで、この規定範囲内の上限は、固定側金型１８と可動側金型１６とに挟持された板ガラス２に割れが生じる圧力よりも低い圧力に設定され、規定範囲の下限は、固定側金型１８と可動側金型１６とに挟持された板ガラス２に位置ズレが生じる圧力よりも高い圧力に設定される。これにより、板ガラス２の割れや位置ズレ及びバリが生じるのを防止できる。
　加圧は一定時間継続して行い、その後、図８（Ｆ）に示すように、金型１２を開いて、表示装置用カバーガラス１となるガラス樹脂一体成形品を取り出す。
　以上一連の工程でガラス樹脂一体成形品の製造が完了する。 On the other hand, when the resin is pressurized in this manner, a high pressure acts on the plate glass 2, and there is a possibility that the plate glass 2 is cracked or misaligned.
Therefore, the position of the plate glass holding portion 28A is controlled by the glass holding pressure adjusting cylinder 32 in conjunction with the pressurization of the resin, and the pressure acting on the plate glass 2 is controlled to be within the specified range.
Here, the upper limit within the specified range is set to a pressure lower than the pressure at which the glass plate 2 sandwiched between the fixed mold 18 and the movable mold 16 is cracked, and the lower limit of the specified range is the fixed side. The pressure is set to be higher than the pressure at which positional deviation occurs in the glass sheet 2 sandwiched between the mold 18 and the movable mold 16. Thereby, it can prevent that the crack of the plate glass 2, a position shift, and a burr | flash generate | occur | produce.
Pressurization is continued for a certain period of time, and then, as shown in FIG. 8 (F), the mold 12 is opened, and the glass resin integrated molded product to be the display device cover glass 1 is taken out.
The manufacturing of the glass resin integrated molded product is completed through the series of steps described above.
　なお、機能膜４があらかじめ形成されている板ガラス２を用いた場合には、取り出したガラス樹脂一体成形品が、そのまま表示装置用カバーガラス１となる。
　一方、機能膜４が形成されていない板ガラス２を用いた場合には、樹脂主面３ａよりも凹んだガラス表面２ａ上に、機能膜４を形成して、表示装置用カバーガラス１とする。
　このとき、ガラス表面２ａ上に機能膜４を形成する方法としては、上述した方法により成膜したりフィルムを貼ったりしてもよい。このとき、先に形成された樹脂成形体３がへこみを有することにより、後で形成される機能膜４を貼り付ける場合にはその位置合わせの基準することができる。
　また、周囲の樹脂主面３ａに対して凹部となっているガラス表面２ａ上に、上述したフッ素含有有機ケイ素化合物溶液を流し込んで、すりきりしてもよい。このような流し込みおよびすりきりによって機能膜４を形成した場合、その樹脂成形体３を流し込みにおける型枠として機能させることができ、機能膜４があらかじめ形成されている板ガラス２を用いた場合と比較して、機能膜４を形成する際の作業性は良好となる。 In addition, when the plate glass 2 in which the functional film 4 is formed in advance is used, the glass resin integrated molded product taken out becomes the display device cover glass 1 as it is.
On the other hand, when the plate glass 2 on which the functional film 4 is not formed is used, the functional film 4 is formed on the glass surface 2a that is recessed from the resin main surface 3a to form the cover glass 1 for a display device.
At this time, as a method of forming the functional film 4 on the glass surface 2a, a film may be formed or a film may be attached by the method described above. At this time, since the resin molded body 3 formed previously has a dent, when the functional film 4 to be formed later is attached, the alignment can be used as a reference.
Alternatively, the fluorine-containing organosilicon compound solution described above may be poured onto the glass surface 2a that is a recess with respect to the surrounding resin main surface 3a. When the functional film 4 is formed by such pouring and grinding, the resin molded body 3 can be made to function as a mold for pouring, compared with the case where the plate glass 2 on which the functional film 4 is formed is used. Thus, the workability when forming the functional film 4 is improved.
　図９は、樹脂加圧時における板ガラスの圧力制御の一例を示す概念図である。
　同図において、実線で示す折れ線Ｌ１は、キャビティ空間１４に注入された樹脂に作用する圧力の遷移を示している。また、実線で示す折れ線Ｌ２は、圧力制御したときの板ガラス２に作用する圧力の遷移を示している。
　また、同図において、Ｔ１は、キャビティ空間１４に対して樹脂の注入を開始した時間、Ｔ２は、キャビティ空間１４に対して樹脂の注入を完了した時間、Ｔ３は、樹脂の加圧を開始した時間、Ｔ４は、加圧を完了した時間、Ｔ５は、型開きした時間を示している。
　また、同図において、間隔の狭い斜線で示す領域ＰＢは、板ガラス２に割れが生じる圧力領域を示しており、間隔の広い斜線で示す領域ＰＳは、板ガラス２に位置ズレが生じる圧力領域を示している。
　同図に示すように、位置ズレは、注入完了時の樹脂に作用する圧力（すなわち、時間Ｔ２での樹脂に作用する圧力）よりも低い圧力になると発生する。
　樹脂の加圧時を含めて、板ガラス２に作用する圧力は、領域ＰＢ及び領域ＰＳの範囲に入らないように制御される。
　図９に示す例では、樹脂加圧時に板ガラス２も加圧されるように制御している。ただし、その範囲は、板ガラス２に割れが生じない圧力範囲（すなわち、領域ＰＢに入らない範囲）とされている。これにより、板ガラス２の割れや位置ズレ及びバリを防止しつつ、樹脂成形体３にヒケが生じるのを防止できる。
　なお、図９において、破線で示す折れ線Ｌ３は、圧力制御していないときの板ガラス２に作用する圧力の遷移を示している。樹脂の加圧時に板ガラス２に作用する圧力の制御をしないと、樹脂の加圧に伴い板ガラス２に作用する圧力も上がり、板ガラス２に割れが生じる。 FIG. 9 is a conceptual diagram illustrating an example of pressure control of a sheet glass during resin pressurization.
In the figure, a broken line L1 indicated by a solid line indicates a transition of pressure acting on the resin injected into the cavity space 14. Moreover, the broken line L2 shown as a continuous line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is carried out.
Further, in the same figure, T1 is a time when the injection of the resin into the cavity space 14 is started, T2 is a time when the injection of the resin into the cavity space 14 is completed, and T3 starts the pressurization of the resin. The time, T4, indicates the time when the pressurization is completed, and T5 indicates the time when the mold is opened.
In addition, in the figure, a region PB indicated by oblique lines with a narrow interval indicates a pressure region where cracks occur in the plate glass 2, and a region PS indicated by oblique lines with a wide interval indicates a pressure region where positional deviation occurs in the plate glass 2. ing.
As shown in the figure, the displacement occurs when the pressure becomes lower than the pressure acting on the resin at the completion of injection (that is, the pressure acting on the resin at time T2).
The pressure acting on the plate glass 2 is controlled so as not to fall within the range of the region PB and the region PS, including when the resin is pressurized.
In the example shown in FIG. 9, it controls so that the plate glass 2 is also pressurized at the time of resin pressurization. However, the range is a pressure range in which the plate glass 2 is not cracked (that is, a range that does not enter the region PB). Thereby, it is possible to prevent sink marks from occurring in the resin molded body 3 while preventing cracking, positional deviation, and burrs of the plate glass 2.
In addition, in FIG. 9, the broken line L3 shown with a broken line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is not carried out. If the pressure acting on the plate glass 2 is not controlled when the resin is pressurized, the pressure acting on the plate glass 2 increases as the resin is pressurized, and the plate glass 2 is cracked.
　図１０は、樹脂加圧時における板ガラスの圧力制御の他の一例を示す概念図である。
　同図において、実線で示す折れ線Ｌ４は、キャビティ空間１４に注入された樹脂に作用する圧力の遷移を示している。また、実線で示す折れ線Ｌ５は、圧力制御したときの板ガラス２に作用する圧力の遷移を示している。
　図１０に示す例では、樹脂加圧時に板ガラス２に作用する圧力が低下するように制御している。ただし、その低下させる範囲は、位置ズレが生じない圧力範囲（すなわち、領域ＰＳに入らない範囲）とされている。これにより、板ガラス２の割れや位置ズレ及びバリを防止しつつ、樹脂成形体３にヒケが生じるのを防止できる。
　なお、図１０において、破線で示す折れ線Ｌ６は、圧力制御していないときの板ガラス２に作用する圧力の遷移を示している。樹脂の加圧時に板ガラス２に作用する圧力の制御をしないと、樹脂の加圧に伴い板ガラス２に作用する圧力も上がり、板ガラス２に割れが生じる。 FIG. 10 is a conceptual diagram showing another example of pressure control of the plate glass during resin pressurization.
In the figure, a broken line L4 indicated by a solid line indicates a transition of pressure acting on the resin injected into the cavity space. Moreover, the broken line L5 shown with a continuous line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is carried out.
In the example shown in FIG. 10, control is performed so that the pressure acting on the plate glass 2 during resin pressurization is reduced. However, the range to be reduced is a pressure range in which positional deviation does not occur (that is, a range that does not enter the region PS). Thereby, it is possible to prevent sink marks from occurring in the resin molded body 3 while preventing cracking, positional deviation, and burrs of the plate glass 2.
In addition, in FIG. 10, the broken line L6 shown with a broken line has shown the transition of the pressure which acts on the plate glass 2 when pressure control is not carried out. If the pressure acting on the plate glass 2 is not controlled when the resin is pressurized, the pressure acting on the plate glass 2 increases as the resin is pressurized, and the plate glass 2 is cracked.
　このように、樹脂の加圧時に板ガラス２に作用する圧力を制御する態様は、樹脂加圧前よりも上げる態様と、下げる態様の二つの態様がある。いずれの態様を選択するかは、使用する樹脂の粘度等を考慮して決定される。すなわち、使用する樹脂の粘度が高いと、板ガラス２には、樹脂加圧前から既に高い圧力が作用するので、このような場合は、樹脂加圧時に板ガラス２に作用する圧力を下げる方向に制御する。これにより、板ガラス２が割れるのを効果的に防止できる。 As described above, there are two modes of controlling the pressure acting on the plate glass 2 when the resin is pressurized, that is, a mode in which the pressure is increased and a mode in which the pressure is lowered. Which mode is selected is determined in consideration of the viscosity of the resin to be used. That is, if the viscosity of the resin used is high, a high pressure is already applied to the plate glass 2 before the resin pressurization. In such a case, the pressure applied to the plate glass 2 during the resin pressurization is controlled to decrease. To do. Thereby, it can prevent effectively that the plate glass 2 is broken.
 〔製造装置・製造方法の変形例〕
　〈ガラス樹脂一体成形品の製造装置の変形例〉
　図１１は、ガラス樹脂一体成形品の製造装置の変形例を示す正面断面図である。
　このガラス樹脂一体成形品製造装置１０は、ガラス保持圧力調整手段と樹脂加圧手段の構成が相違する。したがって、ここでは、ガラス保持圧力調整手段と樹脂加圧手段の構成についてのみ説明する。
　板ガラス保持ブロック２８の基部２８Ｂには、ガラス保持圧力調整手段としての複数のガラス保持圧力調整用バネ６２が備えられる。ガラス保持圧力調整用バネ６２は、板ガラス保持部２８Ａを可動側金型１６に向けて付勢する（すなわち、鉛直上方に付勢する。）。
　固定側モールド２６には、樹脂加圧手段としての複数の樹脂加圧用バネ６４が備えられる。各樹脂加圧用バネ６４は、キャビティ空間形成ブロック３０の外ブロック３０Ａを可動側金型１６に向けて付勢する（すなわち、鉛直上方に付勢する。）。 [Modification of Manufacturing Equipment / Method]
<Variation of manufacturing equipment for glass resin integrated molded product>
FIG. 11 is a front cross-sectional view showing a modification of the glass resin integrated molded product manufacturing apparatus.
The glass resin integrated molded product manufacturing apparatus 10 has different glass holding pressure adjusting means and resin pressing means. Therefore, only the configuration of the glass holding pressure adjusting means and the resin pressurizing means will be described here.
The base portion 28 </ b> B of the plate glass holding block 28 is provided with a plurality of glass holding pressure adjusting springs 62 as glass holding pressure adjusting means. The glass holding pressure adjusting spring 62 biases the plate glass holding portion 28A toward the movable mold 16 (that is, biases vertically upward).
The stationary mold 26 is provided with a plurality of resin pressing springs 64 as resin pressing means. Each resin pressurizing spring 64 urges the outer block 30A of the cavity space forming block 30 toward the movable mold 16 (that is, urges vertically upward).
　〈ガラス樹脂一体成形品の製造方法の変形例〉
　次に、図１１のガラス樹脂一体成形品製造装置１０を用いたガラス樹脂一体成形品の製造方法について、図８と相違するガラス保持圧力調整手段ついて説明し、前述の図８の説明と同様の部分は省略する。
　このように可動側モールド２２と固定側モールド２６との間に一定の隙間を持たせて型締めした場合であっても、板ガラス保持部２８Ａがガラス保持圧力調整用バネ６２によって付勢されているため、板ガラス２は、可動側金型１６と固定側金型１８とによって挟持される。
　また、キャビティ空間形成ブロック３０は、外ブロック３０Ａが樹脂加圧用バネ６４によって付勢されているため、外ブロック３０Ａが可動側金型１６の可動側キャビティブロック２０に当接する。これにより、板ガラス２の周囲にキャビティ空間１４が形成される。
　次に、射出装置（不図示）によってキャビティ空間１４に樹脂を注入し、キャビティ空間１４に樹脂を充填する。
　次に、可動側金型１６を固定側金型１８に向けて移動させる。すなわち、金型１２を更に型締めする。これにより、先の型締め時に可動側モールド２２と固定側モールド２６との間に形成された隙間が閉じられる。
　金型１２を更に型締めすると、外ブロック３０Ａが樹脂加圧用バネ６４の付勢力に抗して可動側金型１６に押され、鉛直方向下側に移動する。この結果、内ブロック３０Ｂが相対的にキャビティ空間１４に繰り出され、キャビティ空間１４の容積が減少する。これにより、キャビティ空間１４内に充填された樹脂が加圧される。
　一方、このように樹脂を加圧すると、板ガラス２に高い圧力が作用するが、板ガラス２を保持する板ガラス保持部２８Ａは、ガラス保持圧力調整用バネ６２によって付勢されながら移動可能に支持されているため、加圧時に作用する圧力を逃がすことができる。これにより、板ガラス２に割れが生じるのを防止できる。
　なお、このように、ガラス保持圧力調整用バネ６２は、樹脂加圧時に板ガラス２に作用する圧力を逃がす作用を供するものであるので、そのバネ力は、樹脂加圧用バネ６４のバネ力よりも弱く設定される。
　また、そのバネ力が弱すぎると、板ガラス２に位置ズレが生じるので、板ガラス２に位置ズレが生じない圧力を付与できるバネ力に設定される。
　加圧は一定時間継続して行い、その後、金型１２を開いて、表示装置用カバーガラス１となるガラス樹脂一体成形品を取り出す。
　以上一連の工程でガラス樹脂一体成形品の製造が完了する。 <Modification of manufacturing method of glass resin integrated molded product>
Next, a glass resin integrated molded product manufacturing method using the glass resin integrated molded product manufacturing apparatus 10 of FIG. 11 will be described with respect to the glass holding pressure adjusting means different from FIG. The part is omitted.
Thus, even when the mold is clamped with a certain gap between the movable mold 22 and the fixed mold 26, the glass sheet holding portion 28A is biased by the glass holding pressure adjusting spring 62. Therefore, the plate glass 2 is sandwiched between the movable side mold 16 and the fixed side mold 18.
In the cavity space forming block 30, since the outer block 30 </ b> A is biased by the resin pressurizing spring 64, the outer block 30 </ b> A contacts the movable cavity block 20 of the movable mold 16. Thereby, the cavity space 14 is formed around the plate glass 2.
Next, resin is injected into the cavity space 14 by an injection device (not shown), and the cavity space 14 is filled with resin.
Next, the movable mold 16 is moved toward the fixed mold 18. That is, the mold 12 is further clamped. Thereby, the clearance gap formed between the movable side mold 22 and the stationary side mold 26 at the time of previous mold clamping is closed.
When the mold 12 is further clamped, the outer block 30A is pushed by the movable mold 16 against the urging force of the resin pressurizing spring 64 and moves downward in the vertical direction. As a result, the inner block 30B is relatively extended to the cavity space 14, and the volume of the cavity space 14 decreases. Thereby, the resin filled in the cavity space 14 is pressurized.
On the other hand, when the resin is pressurized in this way, a high pressure acts on the plate glass 2, but the plate glass holding portion 28 </ b> A that holds the plate glass 2 is supported movably while being urged by the glass holding pressure adjusting spring 62. Therefore, the pressure which acts at the time of pressurization can be released. Thereby, it can prevent that a crack arises in the plate glass 2. FIG.
As described above, the glass holding pressure adjusting spring 62 serves to release the pressure acting on the plate glass 2 when the resin is pressed, and therefore the spring force is larger than the spring force of the resin pressing spring 64. Set weakly.
Further, if the spring force is too weak, a positional deviation occurs in the plate glass 2, so that it is set to a spring force capable of applying a pressure that does not cause a positional deviation in the plate glass 2.
The pressurization is continuously performed for a predetermined time, and then the mold 12 is opened, and the glass resin integrated molded product to be the display device cover glass 1 is taken out.
The manufacturing of the glass resin integrated molded product is completed through the series of steps described above.
　このように、樹脂を加圧する樹脂加圧手段、及び、板ガラス２に作用する圧力を調整するガラス保持圧力調整手段は、バネで構成することもでき、同様の作用効果を奏することができる。
　なお、本変形例では、樹脂加圧手段と、ガラス保持圧力調整手段の双方をバネで構成しているが、いずれか一方をシリンダで構成することもできる。
　樹脂加圧手段、及び、ガラス保持圧力調整手段は、この他、たとえば、モータと、送りネジを利用した移動機構によって構成することもできる。
　また、樹脂加圧手段、及び、ガラス保持圧力調整手段をバネで構成する場合、そのバネの種類は特に限定されない。たとえば、コイルスバネや皿バネを使用することができる。皿バネを使用した場合は、皿バネの枚数を調整することにより、バネ力を調整することができる。 Thus, the resin pressurizing means for pressurizing the resin and the glass holding pressure adjusting means for adjusting the pressure acting on the plate glass 2 can be constituted by the spring, and the same operational effects can be achieved.
In this modification, both the resin pressurizing means and the glass holding pressure adjusting means are constituted by springs, but either one may be constituted by a cylinder.
In addition to this, the resin pressurizing means and the glass holding pressure adjusting means can also be constituted by, for example, a motor and a moving mechanism using a feed screw.
Further, when the resin pressurizing means and the glass holding pressure adjusting means are constituted by springs, the type of the spring is not particularly limited. For example, a coil spring or a disc spring can be used. When a disc spring is used, the spring force can be adjusted by adjusting the number of disc springs.
［表示装置用カバーガラスの用途など］
　表示装置用カバーガラス１は、上述したように、板ガラス２と樹脂成形体３との接合欠陥が生じることが抑制され、破損のおそれを低減できることから、例えば、移動時等に衝撃を受けやすいモバイル機器、具体的には、ノートＰＣ、タブレットＰＣ、スマートフォン、その他様々な表示装置のカバーガラスとしても好適に使用できる。 [Applications of cover glass for display devices, etc.]
As described above, the cover glass 1 for a display device is suppressed from causing a bonding defect between the plate glass 2 and the resin molded body 3 and can reduce the risk of breakage. It can also be suitably used as a cover glass for devices, specifically notebook PCs, tablet PCs, smartphones, and other various display devices.
　本発明によれば、板ガラスと樹脂成形体との接合欠陥を抑制できる表示装置用カバーガラスを提供でき、このカバーガラスは、ノートＰＣ、タブレットＰＣ、スマートフォン、その他モバイル機器などの表示装置のカバーガラスとして有用である。
　なお、２０１３年５月７日に出願された日本特許出願２０１３－０９７８１９号、及び２０１３年１２月２７日に出願された日本特許出願２０１３－２７２５８３号の明細書、特許請求の範囲、図面および要約書の全内容をここに引用し、本発明の開示として取り入れるものである。 ADVANTAGE OF THE INVENTION According to this invention, the cover glass for display apparatuses which can suppress the joint defect of plate glass and a resin molding can be provided, This cover glass is a cover glass of display apparatuses, such as a notebook PC, a tablet PC, a smart phone, and other mobile devices. Useful as.
The specification, claims, drawings and abstract of Japanese Patent Application No. 2013-097819 filed on May 7, 2013 and Japanese Patent Application No. 2013-272583 filed on December 27, 2013. The entire contents of this document are hereby incorporated herein by reference.
　　１…表示装置用カバーガラス
　　２…板ガラス（ガラス部材）
　　２ａ…ガラス表面
　　２ｂ…ガラス裏面
　　２ｃ…ガラス側面
　　３…樹脂成形体
　　３ａ…樹脂表面
　　３ｄ…樹脂内側面
　　３ｅ…回り込み部
　　４…機能膜
　　４ａ…膜表面
　　５…接着剤
　　６…シール部
　１０…ガラス樹脂一体成形品製造装置
　１２…金型
　１４…キャビティ空間
　１６…可動側金型
　１８…固定側金型
　２０…可動側キャビティブロック
　２０Ａ…可動側凹部
　２２…可動側モールド
　２２Ａ…可動側キャビティブロック装着部
　２４…固定側キャビティブロック
　２４Ａ…固定側凹部
　２６…固定側モールド
　２６Ａ…固定側キャビティブロック装着部
　２８Ａ…板ガラス保持ブロック（第１の可動部）
　２８Ａ１…板ガラス載置面
　２８Ａ２…ガイド用凸部
　２８Ｂ…基部
　２８Ｂ１…ガイド用凹部
　３０…キャビティ空間形成ブロック
　３０Ａ…外ブロック
　３０Ｂ…内ブロック（第２の可動部）
　３２…ガラス保持圧力調整用シリンダ
　３４…樹脂加圧用シリンダ
　３６…スプルー
　３８…ゲート
　６２…ガラス保持圧力調整用バネ
　６４…樹脂加圧用バネ
１０１…従来の表示装置用カバーガラス
１０２…板ガラス
１０２ａ…ガラス表面
１０２ｃ…ガラス側面
１０３…樹脂成形体
１０４…機能膜
１０５…接着剤
１４１…界面
１５１…くぼみ DESCRIPTION OF SYMBOLS 1 ... Cover glass for display apparatuses 2 ... Plate glass (glass member)
2a ... glass surface 2b ... glass back surface 2c ... glass side surface 3 ... resin molded body 3a ... resin surface 3d ... resin inner side surface 3e ... wraparound part 4 ... functional film 4a ... film surface 5 ... adhesive 6 ... seal part 10 ... glass resin Integral molded product manufacturing apparatus 12 ... Mold 14 ... Cavity space 16 ... Movable side mold 18 ... Fixed side mold 20 ... Movable side cavity block 20A ... Movable side recess 22 ... Movable side mold 22A ... Movable side cavity block mounting part 24 ... Fixed side cavity block 24A ... Fixed side recess 26 ... Fixed side mold 26A ... Fixed side cavity block mounting part 28A ... Plate glass holding block (first movable part)
28A1 ... Plate glass mounting surface 28A2 ... Guide convex part 28B ... Base part 28B1 ... Guide concave part 30 ... Cavity space forming block 30A ... Outer block 30B ... Inner block (second movable part)
32 ... Glass holding pressure adjusting cylinder 34 ... Resin pressurizing cylinder 36 ... Sprue 38 ... Gate 62 ... Glass holding pressure adjusting spring 64 ... Resin pressurizing spring 101 ... Conventional display cover glass 102 ... Plate glass 102a ... Glass surface 102c ... Glass side surface 103 ... Resin molded body 104 ... Functional film 105 ... Adhesive 141 ... Interface 151 ... Indentation

Claims (15)

  1. 　表示装置を使用するユーザ側のガラス表面と、前記ガラス表面に連なるガラス側面とを有するガラス部材と、
    　前記ガラス表面上に設けられた機能膜と、
    　前記ガラス部材の周囲に設けられた樹脂成形体と、を備え、
    　前記機能膜の膜表面と前記樹脂成形体の樹脂表面とが面一であり、前記ガラス側面と前記樹脂成形体との間に接着剤が設けられている、表示装置用カバーガラス。     A glass member having a glass surface on the user side using the display device and a glass side surface continuous with the glass surface;
    A functional film provided on the glass surface;
    A resin molded body provided around the glass member,
    A cover glass for a display device, wherein a film surface of the functional film and a resin surface of the resin molded body are flush with each other, and an adhesive is provided between the glass side surface and the resin molded body.
  2. 　前記機能膜の膜表面と前記樹脂表面との継ぎ目の高低差が２０μｍ以下である、請求項１に記載の表示装置用カバーガラス。 The cover glass for a display device according to claim 1, wherein a difference in height of a seam between the film surface of the functional film and the resin surface is 20 µm or less.
  3. 　前記樹脂成形体は、前記ガラス部材の周囲に継ぎ目なく連続的に形成されている、請求項１または２に記載の表示装置用カバーガラス。 The cover glass for a display device according to claim 1 or 2, wherein the resin molded body is continuously formed around the glass member without a seam.
  4. 　前記樹脂成形体の引張強度（ＡＳＴＭ－Ｄ６３８に準拠）が、１８０～２４０ＭＰａである、請求項１～３のいずれか１項に記載の表示装置用カバーガラス。 The cover glass for a display device according to any one of claims 1 to 3, wherein the resin molded article has a tensile strength (based on ASTM-D638) of 180 to 240 MPa.
  5. 　前記樹脂成形体は、前記ガラス部材のガラス側面に一体成形されたガラス樹脂一体成形品である、請求項１～4のいずれか１項に記載の表示装置用カバーガラス。 5. The cover glass for a display device according to claim 1, wherein the resin molded body is a glass resin integrated molded product integrally formed on a glass side surface of the glass member.
  6. 　前記樹脂成形体を成形する金型に前記ガラス部材を配置し、前記金型を型締めして、前記金型で前記ガラス部材を挟持する工程と、
    　前記金型を型締めすることにより前記ガラス部材の周囲の少なくとも一部に形成されるキャビティ空間に樹脂を注入して、前記キャビティ空間内に前記樹脂を充填する工程と、
    　前記キャビティ空間内に充填した樹脂を所定の樹脂圧縮圧力で加圧しながら樹脂加圧成形する工程と、
    　型締めした前記金型を開いて、ガラス樹脂一体成形品を取り出す工程と、を備え、
    　前記樹脂加圧成形する工程において、前記樹脂の加圧に連携して前記ガラス部材に作用するガラス保持圧力が規定範囲内に収まるように、前記ガラス保持圧力を調整するガラス樹脂一体成形品の製造方法によって得られる、請求項１～５のいずれか１項に記載の表示装置用カバーガラス。     Placing the glass member in a mold for molding the resin molded body, clamping the mold, and sandwiching the glass member with the mold; and
    Injecting a resin into a cavity space formed in at least a part of the periphery of the glass member by clamping the mold, and filling the resin into the cavity space;
    Resin press molding while pressurizing the resin filled in the cavity space with a predetermined resin compression pressure;
    Opening the mold clamped and taking out a glass resin integrated molded product,
    Manufacture of a glass resin integrated molded product in which the glass holding pressure is adjusted so that the glass holding pressure acting on the glass member is within a specified range in cooperation with the pressing of the resin in the resin pressure molding step. The cover glass for a display device according to any one of claims 1 to 5, obtained by the method.
  7. 　前記樹脂加圧成形する工程において、前記ガラス保持圧力を上げながら成形を行う、請求項６に記載の表示装置用カバーガラス。 The display device cover glass according to claim 6, wherein in the resin pressure molding step, molding is performed while increasing the glass holding pressure.
  8. 　前記樹脂加圧成形する工程において、前記ガラス保持圧力を下げながら成形を行う、請求項６に記載の表示装置用カバーガラス。 The display device cover glass according to claim 6, wherein in the resin pressure molding step, molding is performed while lowering the glass holding pressure.
  9. 　前記ガラス保持圧力の規定範囲の上限は、前記金型に挟持された前記ガラス部材に割れが生じる圧力よりも低い圧力に設定され、前記ガラス保持圧力の規定範囲の下限は、前記金型に挟持された前記ガラス部材に位置ズレが生じる圧力よりも高い圧力に設定される、請求項６～８のいずれか１項に記載の表示装置用カバーガラス。 The upper limit of the prescribed range of the glass holding pressure is set to a pressure lower than the pressure at which the glass member sandwiched between the molds is cracked, and the lower limit of the prescribed range of the glass holding pressure is sandwiched between the molds. The display device cover glass according to any one of claims 6 to 8, wherein the cover glass is set to a pressure higher than a pressure at which positional deviation occurs in the glass member.
  10. 　前記金型で前記ガラス部材を挟持する工程において、前記ガラス部材のガラス表面上に前記機能膜が形成されている前記ガラス部材を前記金型に配置する、請求項６～９いずれか１項に記載の表示装置用カバーガラス。 The glass member having the functional film formed on the glass surface of the glass member is disposed in the mold in the step of sandwiching the glass member with the mold. The cover glass for display apparatuses as described.
  11. 　前記金型で前記ガラス部材を挟持する工程において、前記ガラス部材のガラス表面上に前記機能膜が形成されていない前記ガラス部材を前記金型に配置し、
    　前記ガラス樹脂一体成形品を取り出す工程で取り出したガラス樹脂一体成形品における前記ガラス板の前記ガラス表面上に前記機能膜を形成する、請求項６～９のいずれか１項に記載の表示装置用カバーガラス。     In the step of sandwiching the glass member with the mold, the glass member in which the functional film is not formed on the glass surface of the glass member is disposed in the mold,
    10. The display device according to claim 6, wherein the functional film is formed on the glass surface of the glass plate in the glass resin integrated molded product taken out in the step of taking out the glass resin integrated molded product. cover glass.
  12. 　前記金型で前記ガラス部材を挟持する工程において、前記ガラス部材のガラス側面に前記接着剤が塗布されている前記ガラス部材を前記金型に配置する、請求項６～１１のいずれか１項に記載の表示装置用カバーガラス。 12. The method according to any one of claims 6 to 11, wherein, in the step of sandwiching the glass member with the mold, the glass member having the adhesive applied to the glass side surface of the glass member is disposed in the mold. The cover glass for display apparatuses as described.
  13. 　前記ガラス部材は、板ガラスである請求項１～１２のいずれか１項に記載の表示装置用カバーガラス。 The display device cover glass according to any one of claims 1 to 12, wherein the glass member is a plate glass.
  14. 　前記板ガラスは、前記ガラス表面と前記ガラス側面との間の角部に面取り部を有する請求項１３に記載の表示装置用カバーガラス。 The cover glass for a display device according to claim 13, wherein the plate glass has a chamfered portion at a corner portion between the glass surface and the glass side surface.
  15. 　前記面取り部は、Ｃ面取りされた面取り部である請求項１４に記載の表示装置用カバーガラス。 The cover glass for a display device according to claim 14, wherein the chamfered portion is a chamfered chamfered portion.
PCT/JP2014/062192 2013-05-07 2014-05-02 Cover glass for display devices WO2014181780A1 (en)

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PCT/JP2014/079363 WO2015098300A1 (en) 2013-12-27 2014-11-05 Method and device for producing integrally molded glass-resin article
CN201480070969.4A CN105992684B (en) 2013-12-27 2014-11-05 The manufacture method and device of the integrally formed product of glass resin
EP14874637.3A EP3088154A4 (en) 2013-12-27 2014-11-05 Method and device for producing integrally molded glass-resin article
KR1020167014357A KR20160102975A (en) 2013-12-27 2014-11-05 Method and device for producing integrally molded glass-resin article
JP2015554647A JPWO2015098300A1 (en) 2013-12-27 2014-11-05 Manufacturing method and apparatus for glass resin integrated molded article
TW103138535A TW201532780A (en) 2013-12-27 2014-11-06 Method and device for producing integrally molded glass-resin article
US15/193,505 US20160303783A1 (en) 2013-12-27 2016-06-27 Method and device for producing integrally molded glass-resin article

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JP2013097819A JP2016136164A (en) 2013-05-07 2013-05-07 Display device cover glass
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