WO2013129402A1 - Verre pour utilisation dans un dispositif électronique et verre de protection pour utilisation dans un dispositif portable - Google Patents

Verre pour utilisation dans un dispositif électronique et verre de protection pour utilisation dans un dispositif portable Download PDF

Info

Publication number
WO2013129402A1
WO2013129402A1 PCT/JP2013/054969 JP2013054969W WO2013129402A1 WO 2013129402 A1 WO2013129402 A1 WO 2013129402A1 JP 2013054969 W JP2013054969 W JP 2013054969W WO 2013129402 A1 WO2013129402 A1 WO 2013129402A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
thick
protecting
chemical strengthening
central region
Prior art date
Application number
PCT/JP2013/054969
Other languages
English (en)
Japanese (ja)
Inventor
則史 大森
若月　博
Original Assignee
旭硝子株式会社
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
Application filed by 旭硝子株式会社 filed Critical 旭硝子株式会社
Publication of WO2013129402A1 publication Critical patent/WO2013129402A1/fr

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Definitions

  • the present invention relates to glass for electronic devices and glass for portable devices.
  • the edge of glass tends to be subjected to a strong impact due to its sharp shape, and tends to be a crack starting point.
  • a portable device since a portable device is portable, it is easy to receive impacts from various directions, and there is a high demand for enhancing edge strength.
  • the present invention has been made in view of the above points, and an object thereof is to provide glass for electronic devices and glass for portable devices in which weight reduction and edge strength enhancement are realized.
  • the present invention provides the following (1) to (8).
  • Glass for electronic equipment comprising: a thin-walled portion constituting a central region of the glass; and a thick-walled portion constituting a peripheral region surrounding the central region and thicker than the thin-walled portion. Glass.
  • a portable device protecting glass used for a cover glass mounted on a portable device A glass for protecting a portable device, comprising: a thin portion constituting a central region of the glass; and a thick portion constituting a peripheral region surrounding the central region and being thicker than the thin portion.
  • the glass for protecting a portable device according to (5), wherein the thick part is configured by laminating a plurality of glass plates.
  • the glass for protecting portable devices according to (5) or (6), wherein the plurality of glass plates have different glass compositions.
  • the present invention it is possible to provide a glass plate for portable devices in which weight reduction and edge strength enhancement are realized, and other various glass for electronic devices.
  • FIG. 1 It is a top view which shows an example of the glass 1 typically. It is a sectional side view which shows an example of the glass 1 typically. 4 is a side sectional view schematically showing another example of the glass 1.
  • FIG. It is side sectional drawing which shows typically an example of the glass 1 comprised by the laminated
  • a mobile electronic device represented by a mobile device such as a smartphone or a tablet PC; a display device such as a liquid crystal display (LCD) or a plasma display (PDP) is representative.
  • a display device such as a liquid crystal display (LCD) or a plasma display (PDP)
  • LCD liquid crystal display
  • PDP plasma display
  • Stationary electronic equipment and the like.
  • the glass such as a glass substrate and a cover glass plate used in the electronic device described above (hereinafter, plate-like glass such as the glass substrate and the cover glass plate is simply referred to as glass in this specification), the mobile type. Regardless of the stationary type, there is a high demand for weight reduction and space saving, and there is a tendency to reduce the plate thickness.
  • the edge of glass is susceptible to impacts and is likely to become a starting point of cracking, so there is a high demand for enhancing the edge strength. That is, there is a demand for weight reduction and edge strength enhancement for glass for electronic devices used in electronic devices.
  • the glass for electronic devices of the present invention has a relative thickness in the central region of the glass. Because it is light and thin, and the peripheral area is a thick part with a relatively thick plate, weight reduction and enhanced edge strength are achieved. It can be suitably used for the electronic device described above.
  • the glass plate for portable devices of the present invention and various other types of glass for electronic devices (hereinafter also referred to simply as “glass”) will be described in more detail with reference to FIGS.
  • the present invention is not limited to this.
  • FIG. 1 is a plan view schematically showing an example of the glass 1
  • FIG. 2 is a side sectional view thereof.
  • the region of the glass 1 is roughly divided into a central region 51 and a peripheral region 52 that is an outermost peripheral region surrounding the central region 51.
  • the central region 51 mainly constitutes a region through which video / image is transmitted, but other regions may be constructed, and the peripheral region 52 is composed of video / image. You may comprise the area
  • the central region 51 is configured by the thin portion 11, and the peripheral region 52 is configured by the thick portion 12 that is thicker than the thin portion 11.
  • region 51 is comprised only by the thin part 11
  • region 52 may be partially comprised by the thin part 11, and may be comprised by the thick part 12 entirely.
  • the thick portion 12 may be provided intermittently in a part of the peripheral region 52 or may be provided in the entire circumference of the glass 1 (that is, the entire peripheral region 52).
  • the thick portion 12 that is relatively thicker than the thin portion 11 is disposed at the edge, and therefore, for example, the entire region including the peripheral region 52 is configured by the thin portion 11. Compared to the case, higher energy is required when breaking the edge. That is, the edge strength is excellent. Moreover, in the glass 1, since the thin part 11 relatively thin rather than the thick part 12 comprises the center area
  • W1 is used from the viewpoint of being used in a portable device that can be carried. It is preferably 300 mm or less, and more preferably 250 mm or less. On the other hand, for the reason that a thick part having a sufficient thickness can be formed, the width W1 of the thick part is preferably 15 mm or more, and more preferably 20 mm or more.
  • W1 is preferably 2500 mm or less, and more preferably 2000 mm or less.
  • T1 when the thickness of the thin portion 11 (distance in the vertical direction in FIG. 2) is “T1”, when the glass 1 is used in a portable device, T1 is 1.1 mm from the viewpoint of weight reduction. The following is preferable, and 0.9 mm or less is more preferable. On the other hand, T1 is preferably 0.2 mm or more and more preferably 0.4 mm or more because it has the minimum necessary strength.
  • T1 is preferably 1.1 mm or less, and more preferably 0.9 mm or less.
  • the lower limit of the width (W2) of the thick portion 12 is represented by (T1) ⁇ (X), and X is preferably 1.5 or more because the edge strength is improved to a significant difference. Two or more are more preferable.
  • the upper limit of W2 is represented by (W1 / 2) ⁇ (Y), and Y is preferably 0.2 or less, and more preferably 0.1 or less.
  • the thickness (T2) of the thick portion 12 is represented by (T1) ⁇ (Z), and Z is preferably 1.5 or more because the edge strength is improved to a significant degree. Two or more are more preferable.
  • X, Y, and Z described above are ratio indicators that are adopted as preferable ranges for designing the dimensions of the glass plate 1 (that is, the dimensions of W2 and T2).
  • Z is preferably 65 or less, more preferably 30 or less, because the strength against bending stress is increased.
  • the thick part 12 showed the aspect protruded only to the upper surface side (upper side in FIG. 2) of the glass 1 with respect to the thin part 11, it is not limited to this, Next, as will be described with reference to FIG. 3, the thick portion 12 may also protrude to the lower surface side of the glass 1.
  • FIG. 3 is a side sectional view schematically showing another example of the glass 1.
  • the thick portion 12 protrudes not only on the upper surface side (upper side in FIG. 3) of the glass 1 but also on the lower surface side (lower side in FIG. 3). ing.
  • the thickness (T2) of the thick portion 12 is a thickness including portions protruding to the upper surface side and the lower surface side of the glass 1.
  • the method for producing glass 1 is not particularly limited, and examples thereof include a method for obtaining glass 1 by polishing a glass plate having a thickness equal to or greater than the thickness (T2) of thick portion 12.
  • a conventionally known method can be used, and examples thereof include a method of mechanically polishing the surface of the glass plate, a method of chemically polishing the surface of the glass plate, and the like.
  • the manufacturing method of the glass 1 is not limited to polishing.
  • FIG. 4 is a side sectional view schematically showing an example of the glass 1 constituted by a plurality of laminated glass plates.
  • a second glass plate 32 different from the first glass plate 31 is laminated on the peripheral region 52 of the first glass plate 31.
  • the first glass plate 31 constitutes the thin part 11 and a part of the thick part 12, and the second glass plate 32 constitutes the remaining part of the thick part 12.
  • the 1st glass plate 31 and / or the 2nd glass plate 32 may be further comprised by the laminated
  • the method for laminating is not particularly limited, and a conventionally known method can be used.
  • a method of bonding the first glass plate 31 and the second glass plate 32 to each other by bonding A method of heating the plate 31 and the second glass plate 32 to a temperature equal to or higher than the softening point of the two and fusing them together.
  • the glass composition of the glass 1 described with reference to FIGS. 1 to 4 is not particularly limited. Moreover, when the glass 1 is comprised with several glass plates (refer FIG. 4), the glass composition of several glass plates may be the same, or may mutually differ. However, the glass 1 may be subjected to a chemical strengthening treatment as described below with reference to FIG. 5, and in that case, as the glass 1, it is necessary to select a glass containing an alkali component, Alkali aluminosilicate glass is preferred.
  • FIG. 5 is a side sectional view schematically showing an example of the glass 1 subjected to the chemical strengthening treatment.
  • a chemical strengthening layer 41 that has been subjected to a chemical strengthening process, which will be described later, and has generated a compressive stress (hereinafter also referred to as “chemically strengthened compressive stress”) is formed.
  • the depth of the chemical strengthening layer 41 is not particularly limited, and is preferably 15 to 50 ⁇ m, for example. Further, the chemical strengthening compressive stress of the chemical strengthening layer 41 is not particularly limited, and is preferably, for example, 600 to 2000 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 glass plate, and an alkali having a larger ion radius.
  • 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 glass plate, and an alkali having a larger ion radius.
  • a component for example, an alkali metal ion such as K ion, hereinafter also referred to as “large-diameter alkali component
  • the high expansion layer 2 (or the high expansion layer 2)
  • a large-diameter alkali component (large-diameter alkali ion) is introduced on the surface of the low expansion layer 3) by ion exchange with a small-diameter alkali component (small-diameter alkali ion), whereby a compressive stress layer is formed on the surface layer.
  • the concentration of the large-diameter alkaline component in the chemically strengthened layer 41 is higher than that in the portion excluding the chemically strengthened layer 41. That is, the chemical strengthening layer 41 and the portion excluding the chemical strengthening layer 41 can be clearly distinguished by the difference in the concentration of the large-diameter alkaline component.
  • the chemical strengthening treatment include a method in which the glass 1 is immersed in a molten salt of potassium nitrate (KNO 3 ) for 0.25 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.
  • the glass for electronic devices of the present invention is suitably used as a cover glass or a glass substrate mounted on a portable device or a display device because it is lighter and has enhanced edge strength.
  • Glass A Composition (oxide conversion display) SiO 2: 64.3 mol%, Al 2 O 3: 6 mol%, MgO: 11 mol%, CaO: 0.1 mol%, SrO: 0.06 mol%, BaO: 0.04 mol%, Na 2 O: 12 mol%, K 2 O: 4 mol%, ZrO 2: 2.5 mol%.
  • Thermal expansion coefficient 91 ⁇ 10 ⁇ 7 / K Glass transition temperature: 620 ° C
  • Softening point 842 ° C -Refractive index: 1.52 ⁇
  • Young's modulus 78GPa -Poisson's ratio: 0.22
  • a plate-like glass 1 having a cross-sectional view shown in FIG. 2 was produced.
  • the total width (W1) of the glass 1, the width (W2) of the thick portion 12, the thickness (T1) of the thin portion 11, and the thickness (T2) of the thick portion 12 are shown in Table 1 below.
  • the surface of the glass A having a total width and thickness larger than W1 and T2, respectively, is polished using cerium oxide, and the end face is formed using # 600 diamond abrasive grains.
  • glass 1 having a cross-sectional view shown in FIG. 2 was produced by grinding the central region 51 using diamond abrasive grains having a grain size of # 600 to form a counterbore in a square shape.
  • the glass for various electronic devices containing the glass plate for portable devices in which weight reduction and reinforcement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un verre destiné à être utilisé dans un dispositif électronique et un verre de protection destiné à être utilisé dans un dispositif portable, chacun étant de poids réduit et ayant une résistance de bord améliorée. Le verre destiné à être utilisé dans un dispositif électronique ou le verre de protection destiné à être utilisé dans un dispositif portable comprend les éléments suivants : une section mince (11) qui constitue la région centrale (51) du verre; et une section épaisse (12) qui est plus épaisse que la section mince (11) et qui constitue une région de bord (52) qui entoure la région centrale (51).
PCT/JP2013/054969 2012-02-29 2013-02-26 Verre pour utilisation dans un dispositif électronique et verre de protection pour utilisation dans un dispositif portable WO2013129402A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2012-042809 2012-02-29
JP2012042809 2012-02-29
JP2012153586A JP2015099171A (ja) 2012-02-29 2012-07-09 電子機器用ガラス
JP2012-153586 2012-07-09

Publications (1)

Publication Number Publication Date
WO2013129402A1 true WO2013129402A1 (fr) 2013-09-06

Family

ID=49082599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/054969 WO2013129402A1 (fr) 2012-02-29 2013-02-26 Verre pour utilisation dans un dispositif électronique et verre de protection pour utilisation dans un dispositif portable

Country Status (3)

Country Link
JP (1) JP2015099171A (fr)
TW (1) TW201350319A (fr)
WO (1) WO2013129402A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111393999A (zh) * 2020-01-03 2020-07-10 捷庭有限公司 渐进式玻璃保护贴及其制造方法
WO2022065132A1 (fr) * 2020-09-24 2022-03-31 日本電気硝子株式会社 Verre trempé

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7006534B2 (ja) * 2018-04-27 2022-02-10 Ａｇｃ株式会社 化学強化ガラス板、携帯情報端末および化学強化ガラス板の製造方法
CN114097016B (zh) * 2019-07-10 2023-10-20 Ａｇｃ株式会社 玻璃基体、盖板玻璃、组装体以及组装体的制造方法
EP4026814A4 (fr) * 2019-09-03 2023-10-25 Agc Inc. Unité de production d'un substrat en verre, ensemble verre de recouvrement et dispositif d'affichage monté sur véhicule

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195770A (ja) * 2004-01-06 2005-07-21 Ibm Japan Ltd 液晶表示装置、液晶セル、透明基板、および液晶セルの製造方法
JP2010271552A (ja) * 2009-05-22 2010-12-02 Nec Corp 表示装置及び電子装置
JP2011037685A (ja) * 2009-08-17 2011-02-24 Nippon Electric Glass Co Ltd 素子封止体及びその製造方法並びに素子の封止方法
JP2011136895A (ja) * 2009-12-04 2011-07-14 Nippon Electric Glass Co Ltd 合わせガラス
JP2012022200A (ja) * 2010-07-15 2012-02-02 Asahi Glass Co Ltd ディスプレイ装置
JP2012025657A (ja) * 2011-08-12 2012-02-09 Hoya Corp 携帯機器用カバーガラスのガラス基材

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195770A (ja) * 2004-01-06 2005-07-21 Ibm Japan Ltd 液晶表示装置、液晶セル、透明基板、および液晶セルの製造方法
JP2010271552A (ja) * 2009-05-22 2010-12-02 Nec Corp 表示装置及び電子装置
JP2011037685A (ja) * 2009-08-17 2011-02-24 Nippon Electric Glass Co Ltd 素子封止体及びその製造方法並びに素子の封止方法
JP2011136895A (ja) * 2009-12-04 2011-07-14 Nippon Electric Glass Co Ltd 合わせガラス
JP2012022200A (ja) * 2010-07-15 2012-02-02 Asahi Glass Co Ltd ディスプレイ装置
JP2012025657A (ja) * 2011-08-12 2012-02-09 Hoya Corp 携帯機器用カバーガラスのガラス基材

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111393999A (zh) * 2020-01-03 2020-07-10 捷庭有限公司 渐进式玻璃保护贴及其制造方法
WO2022065132A1 (fr) * 2020-09-24 2022-03-31 日本電気硝子株式会社 Verre trempé

Also Published As

Publication number Publication date
JP2015099171A (ja) 2015-05-28
TW201350319A (zh) 2013-12-16

Similar Documents

Publication Publication Date Title
JP5088717B1 (ja) 強化ガラス基板及びその製造方法
JP7041612B2 (ja) 傷つき難い表面を有する積層ガラス物品
EP2819965B1 (fr) Compositions de verre à ions échangeables, à faible coefficient de dilatation thermique et articles de verre comprenant celles-ci
TWI542559B (zh) 強化玻璃基板及其製造方法與強化用玻璃基板
JP6313391B2 (ja) ガラス基板、電子機器用カバーガラス、及びガラス基板の製造方法
WO2013129402A1 (fr) Verre pour utilisation dans un dispositif électronique et verre de protection pour utilisation dans un dispositif portable
JP5376032B1 (ja) 化学強化ガラス板、カバーガラスおよびディスプレイ装置
JP2015006959A (ja) ガラス基板、ガラス基板の製造方法、およびカバーガラス
WO2014185383A1 (fr) Procédé de fabrication de verre renforcé, et verre renforcé
JP2011530470A5 (fr)
WO2013176150A1 (fr) Plaque de verre chimiquement renforcé, lamelle couvre-objet, verre chimiquement renforcé pourvu d'un capteur tactile, et dispositif d'affichage
WO2015076268A1 (fr) Plaque de verre chimiquement renforcée
WO2013191110A1 (fr) Élément de support pour bloc d'alimentation sans contact
JP2014065624A (ja) 強化ガラス基板の製造方法
CN113811447A (zh) 抗损伤的玻璃层压件及其制造方法
WO2013129400A1 (fr) Verre renforcé feuilleté
JP2013245157A (ja) 強化ガラス板の製造方法、強化用ガラス板の製造方法及びタッチパネルの製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13754808

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13754808

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP