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公开(公告)号:US20250002394A1
公开(公告)日:2025-01-02
申请号:US18429164
申请日:2024-01-31
Applicant: Samsung Display Co., LTD. , Nippon Electric Glass Co Ltd
Inventor: Seung Ho KIM , Yuta NAGANO , Takashi MURATA , Yusuke SHIMIZU , Ken YUKI , Kosuke KAWAMOTO , Seung KIM , Cheol Min PARK , Hui Yeon SHON , Gyu In SHIM , Jae Gil LEE , Jin Won JANG , So Mi JUNG
Abstract: A glass article includes a glass composition including mole percent (mol %) to 70 mol % of SiO2, 5 mol % to 15 mol % of Al2O3, 5 mol % to 15 mol % of Na2O, greater than 0 mol % and equal to or less than 5 mol % of K2O, 5 mol % to 15 mol % of Li2O, and greater than 0 mol % and equal to or less than 5 mol % of MgO, and satisfying Relation (1) below: 0.1≤Al2O3/(sum of Na2O,K2O, and Li2O)≤0.7 (1), where Al2O3, Na2O, K2O, and Li2O in the Relation (1) denote contents (mol %) of Al2O3, Na2O, K2O, and Li2O, respectively, in the glass composition, and the glass article has a thickness of 100 micrometers (μm) or less.
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公开(公告)号:US20240150234A1
公开(公告)日:2024-05-09
申请号:US18412320
申请日:2024-01-12
Applicant: Samsung Display Co., Ltd.
Inventor: Su Jin SUNG , Byung Hoon KANG , Seung KIM , Young Ok PARK , Gyu In SHIM
IPC: C03C21/00 , C03B27/03 , C03C3/083 , G02F1/1333
CPC classification number: C03C21/002 , C03B27/03 , C03C3/083 , G02F1/133308 , G02F1/133331 , C03C3/04
Abstract: A glass article includes lithium aluminosilicate, includes a first surface, a second surface opposed to the first surface, a first compressive region extending from the first surface to a first compression depth, a second compressive region extending from the second surface to a second compression depth, and, a tensile region disposed between the first compression depth and the second compression depth, where a stress profile of the first compressive region has a first local minimum point at which the stress profile is convex downward and a first local maximum point at which the stress profile is convex upward, where a depth of the first local maximum point is greater than a depth of the first local minimum point, and where a stress of the first local maximum point is greater than a compressive stress of the first local minimum point.
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公开(公告)号:US20220009828A1
公开(公告)日:2022-01-13
申请号:US17317370
申请日:2021-05-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Gyu In SHIM , Byung Hoon KANG , Seung KIM , Seung Ho KIM , Su Jin SUNG
Abstract: A glass manufacturing apparatus includes a support configured to hold a glass including a first flat portion, a second flat portion, and a curved portion connecting one side of the first flat portion and one side of the second flat portion. The support includes a first flat surface supporting the first flat portion, a second flat surface facing the first flat surface and supporting the second flat portion, and a curved surface connecting the flat surface to the second flat surface and supporting the curved portion.
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公开(公告)号:US20210188688A1
公开(公告)日:2021-06-24
申请号:US17001303
申请日:2020-08-24
Applicant: Samsung Display Co., LTD.
Inventor: Gyu In SHIM , Byung Hoon KANG , Seung KIM , Hoi Kwan LEE
IPC: C03B27/012 , C03C23/00 , C03B25/02 , G02F1/1333
Abstract: An apparatus for manufacturing a glass article includes a plurality of side portions spaced apart from each other; and a plurality of heat supply portions disposed on each of the side portions; where the side portions adjacent to each other are disposed to face each other, and a glass is allowed to be disposed between the adjacent side portions.
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公开(公告)号:US20240239703A1
公开(公告)日:2024-07-18
申请号:US18371086
申请日:2023-09-21
Applicant: Samsung Display Co., LTD. , Kongju National University Industry-University Cooperation Foundation
Inventor: Hui Yeon SHON , Woon Jin CHUNG , Min Gyeong KANG , Seung KIM , Seung Ho KIM , Kyeong Dae PARK , Seong Young PARK , Cheol Min PARK , Gyu In SHIM , Jae Gil LEE , Jin Won JANG , So Mi JUNG
Abstract: A glass composition, a glass article prepared therefrom, and a display device are provided. The glass article includes as a glass composition: 59 to 69 mol % of SiO2, 8 to 18 mol % of Al2O3, greater than 0 to 5 mol % of Na2O, greater than 0 to 5 mol % of ZnO, and greater than 0 to 10 mol % of B2O3, and glass article further includes 10 to 20 mol % of CaO or 15 to 25 mol % of MgO, satisfies Relation 1 below, and has a thickness of 100 μm or less,
4.5≤Al2O3/Na2O≤5.5 (Relation 1),
where, in Relation 1, Al2O3 and Na2O represent contents (mol %) of corresponding components, respectively, in the glass composition.-
公开(公告)号:US20240239083A1
公开(公告)日:2024-07-18
申请号:US18237545
申请日:2023-08-24
Applicant: Samsung Display Co., LTD.
Inventor: Seung Ho KIM , Gyu In SHIM , Seung KIM , Cheol Min PARK , Jae Gil LEE , Jin Won JANG , So Mi JUNG
CPC classification number: B32B17/06 , B32B7/12 , H05K5/03 , B32B2307/54 , B32B2307/558 , B32B2307/56 , B32B2307/7376 , B32B2457/20
Abstract: A glass article has a thickness in a range of 20 μm to 100 μm and a third elastic energy index of 1.8 MPa2/m0.5 or greater, where the third elastic energy index is defined by Equation 2-3: Third elastic energy index (Eelas3)=GIC×(1/B)×Eabs (Equation 2-3), where GIC is a fracture energy index defined by Equation 1: Fracture energy index (GIC)=(KIC2×(1−v2))/E (Equation 1), where KIC is fracture toughness, v is Poisson's ratio, and E is Young's modulus, B is brittleness (fracture toughness KIC/hardness Hv), and Eabs is absorption energy defined by Equation A: Absorption energy (Eabs)=σ2×(1−v)/E (Equation A), where σ is surface strength defined by Equation B: Surface strength (σ)=(E×α×ρ2)/(1−v) (Equation B), where E is Young's modulus, α is a thermal expansion coefficient, ρ is density, and v is Poisson's ratio.
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公开(公告)号:US20240228363A1
公开(公告)日:2024-07-11
申请号:US18456911
申请日:2023-08-28
Applicant: Samsung Display Co., LTD. , Kongju National University Industry-University Cooperation Foundation
Inventor: Gyu In SHIM , Woon Jin CHUNG , Min Gyeong KANG , Seung KIM , Seung Ho KIM , Kyeong Dae PARK , Seong Young PARK , Cheol Min PARK , Hui Yeon SHON , Jae Gil LEE , Jin Won JANG , So Mi JUNG
Abstract: A glass article prepared from a glass composition includes SiO2 in a range of about 48 mol % to about 57 mol %, Al2O3 in a range of about 10 mol % to about 20 mol %, Na2O in a range of about 8 mol % to about 18 mol %, K2O greater than 0 mol % and equal to or less than about 10 mol %, B2O3 in a range of about 10 mol % to about 17 mol %, and CaO or MgO greater than 0 mol % and equal to or less than about 7 mol % based on a total weight. A ration of Al2O3 and Na2O+K2O is in a range of about 0.7 to about 1.3, and a thickness of the glass article is equal to or less than about 100 μm.
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公开(公告)号:US20230184647A1
公开(公告)日:2023-06-15
申请号:US17870834
申请日:2022-07-22
Applicant: Samsung Display Co., LTD.
Inventor: So Mi JUNG , Seung KIM , Seung Ho KIM , Hyun Chul BAE , Hui Yeon SHON , Gyu In SHIM , Hoi Kwan LEE
IPC: G01N3/08
CPC classification number: G01N3/08 , G01N2203/0019 , G01N2203/0017 , G01N2203/0032
Abstract: A glass strength evaluation apparatus includes a support unit, a plate disposed on the support unit and including a surface on which a glass article, which is a target to be tested, is disposed, a fixing jig disposed on the plate and a power unit lifting up or down the fixing jig in a vertical direction toward the surface of the plate. The fixing jig includes a body portion, which extends in the vertical direction and lower fixing bolts. A press-fitting member insertion opening is recessed from a bottom of the body portion to extend in an upward direction, lower fixing bolt insertion holes penetrate the body portion, from one side of the body portion, in a first horizontal direction intersecting the vertical direction, to be extended to the press-fitting insertion opening, and lower fixing bolts are coupled into the lower fixing bolt insertion holes.
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公开(公告)号:US20210323855A1
公开(公告)日:2021-10-21
申请号:US17144798
申请日:2021-01-08
Applicant: Samsung Display Co., LTD.
Inventor: Su Jin SUNG , Byung Hoon KANG , Seung KIM , Young Ok PARK , Gyu In SHIM
Abstract: A glass article includes a first surface; a second surface opposed to the first surface; a side surface connecting the first surface to the second surface; a first surface compressive region extending from the first surface to a first depth; a second surface compressive region extending from the second surface to a second depth; and a side compressive region extending from the side surface to a third depth, where the first surface and the side surface are non-tin surfaces, the second surface is a tin surface, and a maximum compressive stress of the second surface compressive region is greater than a maximum compressive stress of the first surface compressive region.
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公开(公告)号:US20210179489A1
公开(公告)日:2021-06-17
申请号:US16931142
申请日:2020-07-16
Applicant: Samsung Display Co., LTD.
Inventor: Byung Hoon KANG , Seung KIM , Gyu In SHIM , Hoi Kwan LEE
Abstract: A glass product includes: a first compressive region at a first surface; a second compressive region at a second surface; and a tensile region between the first and second compression regions. A stress profile of the first compressive region includes a first trend line between the first surface and a first transition point, a second trend line between the first transition point and a second transition point, and a third trend line between the second transition point and a point at a first compression depth from the first surface. A depth from the first surface to the first transition point is 10 μm or less, a stress at the first transition point is 200 MPa or greater, a depth from the first surface to the second transition point is 50 μm to 80 μm, and a stress at the second transition point is 40 MPa to 100 MPa.
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