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1. (WO2019003565) CRYSTALLIZED GLASS SUBSTRATE
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Pub. No.: WO/2019/003565 International Application No.: PCT/JP2018/015069
Publication Date: 03.01.2019 International Filing Date: 10.04.2018
IPC:
C03C 10/08 (2006.01) ,C03C 3/085 (2006.01) ,C03C 21/00 (2006.01) ,G02B 1/00 (2006.01) ,G06F 3/041 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
10
Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
04
Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase
06
Divalent metal oxide aluminosilicate crystalline phase, e.g. anorthite, slagcerams
08
Magnesium aluminosilicate, e.g. cordierite
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
076
with 40% to 90% silica by weight
083
containing aluminium oxide or an iron compound
085
containing an oxide of a divalent metal
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
21
Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
Applicants:
株式会社 オハラ OHARA INC. [JP/JP]; 神奈川県相模原市中央区小山一丁目15番30号 15-30, Oyama 1-Chome,Chuo-ku,Sagamihara-Shi Kanagawa 2525286, JP
Inventors:
八木俊剛 YAGI Toshitaka; JP
山下豊 YAMASHITA Yutaka; JP
後藤直雪 GOTO Naoyuki; JP
Priority Data:
2017-12397426.06.2017JP
2018-01102126.01.2018JP
Title (EN) CRYSTALLIZED GLASS SUBSTRATE
(FR) SUBSTRAT DE VERRE CRISTALLISÉ
(JA) 結晶化ガラス基板
Abstract:
(EN) The purpose of the present invention is to provide a crystallized glass substrate which is hard, is less liable to break, and is less liable to shatter even if the glass substrate does break. The crystallized glass substrate comprises, as a base material, a crystallized glass including, in weight% in terms of oxide, 40.0% to 70.0% of an SiO2 component, 11.0% to 25.0% of an Al2O3 component, 5.0% to 19.0% of an Na2O component, 0% to 9.0% of a K2O component, 1.0% to 18.0% of one or more components selected from an MgO component and a ZnO component, 0% to 3.0% of a CaO component, and 0.5% to 12.0% of a TiO2 component, and including 90% or more in total of the SiO2 component, the Al2O3 component, the Na2O component, the one or more components selected from the MgO component and the ZnO component, and the TiO2 component. The crystallized glass substrate has a compressive stress layer on the surface, the compressive stress layer having a stress depth of 40 μm or more, a surface compressive stress of 750 MPa or more, and a center compressive stress calculated by curve analysis of 65 MPa or less.
(FR) L'objet de la présente invention est de fournir un substrat de verre cristallisé qui est dur, est moins susceptible de se casser, et est moins susceptible de se briser même si le substrat de verre ne casse pas. Le substrat de verre cristallisé comprend, comme matériau de base, un verre cristallisé comprenant, en % en poids en termes d'oxyde, de 40,0 % à 70,0 % d'un constituant SiO2, de 11,0 % à 25,0 % d'un constituant Al2O3, de 5,0 % à 19,0 % d'un constituant Na2O, de 0 % à 9,0 % d'un constituant K2O, de 1,0 % à 18,0 % d'un ou plusieurs constituants choisis parmi un constituant MgO et un constituant ZnO, de 0 % à 3,0 % d'un constituant CaO, et de 0,5 % à 12,0 % d'un constituant TiO2, et comprenant au total au moins 90 % du constituant SiO2, du constituant Al2O3, du constituant Na2O, du ou des constituants choisis parmi le constituant MgO et le constituant ZnO, et du constituant TiO2. Le substrat de verre cristallisé comprend une couche contrainte de compression sur la surface, la couche contrainte de compression ayant une profondeur de contrainte supérieure ou égale à 40 µm, une contrainte de compression de surface supérieure ou égale à 750 MPa, et une contrainte de compression centrale, calculée par une analyse de courbe, inférieure ou égale à 65 MPa.
(JA) 硬く割れ難くたとえ破壊しても粉砕し難い結晶化ガラス基板を得ること。 酸化物換算の重量%で、SiO成分を40.0%~70.0%、Al成分を11.0%~25.0%、NaO成分を5.0%~19.0%、KO成分を0%~9.0%、MgO成分およびZnO成分から選択される1以上を1.0%~18.0%、CaO成分を0%~3.0%、並びにTiO成分を0.5%~12.0%、を含有し、SiO成分、Al成分、NaO成分、MgO成分およびZnO成分から選択される1以上、TiO成分を合わせて90%以上含有する結晶化ガラスを母材とし、表面に圧縮応力層を有する結晶化ガラス基板であって、前記圧縮応力層の応力深さが40μm以上であり、前記圧縮応力層の表面圧縮応力が750MPa以上であり、曲線解析で求める前記圧縮応力層の中心圧縮応力が、65MPa以下である結晶化ガラス基板。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)