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公开(公告)号：US20240150214A1
公开(公告)日：2024-05-09
申请号：US18412263
申请日：2024-01-12
发明人： Su Jin SUNG , Byung Hoon KANG , Seung KIM , Young Ok PARK , Gyu In SHIM
CPC分类号： C03B18/02 , C03C21/002
摘要： 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：US20220380251A1
公开(公告)日：2022-12-01
申请号：US17816710
申请日：2022-08-01
发明人： Gyu In SHIM , Seung KIM , Byung Hoon KANG , Young Ok PARK , Su Jin SUNG
IPC分类号： C03C21/00
摘要： A glass article 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 between the first compression depth and the second compression depth. A stress profile of the first compressive region includes a first segment located between the first surface and a first transition point and a second segment located between the first transition point and the first compression depth. A depth from the first surface to the first transition point ranges from 6.1 μm to 8.1 μm. A compressive stress at the first transition point ranges from 207 MPa to 254 MPa. A stress-depth ratio of the first transition point ranges from 28 MPa/μm to 35 MPa/μm.
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公开(公告)号：US20220088741A1
公开(公告)日：2022-03-24
申请号：US17348745
申请日：2021-06-15
发明人： Gyu In SHIM , Byung Hoon Kang , Seung Kim , Seung Ho Kim
摘要： A glass polishing apparatus includes a jig that holds a glass structure. The glass polishing apparatus includes a first flat portion, a second flat portion opposite to the first flat portion, and a curved portion connecting the first flat portion to the second flat potion The jig and includes a first holding surface holding the first flat portion, a second holding surface disposed opposite to the first holding surface and holding the second flat portion, and a third holding surface connecting the first holding surface to the second holding surface and holding the curved portion. At least a portion of a roller unit having a cylindrical shape is inserted between the first flat portion and the second flat portion.
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公开(公告)号：US20210188695A1
公开(公告)日：2021-06-24
申请号：US16937628
申请日：2020-07-24
发明人： Gyu In SHIM , Byung Hoon KANG , Seung KIM , Young Ok PARK , Su Jin SUNG
摘要： A glass article includes first and second surfaces opposed to each other; a first compressive region extending from the first surface to a point at a first compression depth; a second compressive region extending from the second surface to a point a second compression depth; and a tensile region disposed between the first and second compressive regions. A stress profile of the first compressive region includes a first segment between the first surface and a first transition point and a second segment between the first transition point and the first compression depth. A depth from the first surface to the first transition point is 8.1 μm to 9.5 μm, a stress at the first transition point is greater than or equal to 197 MPa, and a stress at a point of 50 μm in a depth direction from the first surface is greater than or equal to 75 MPa.
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公开(公告)号：US20210179488A1
公开(公告)日：2021-06-17
申请号：US16926488
申请日：2020-07-10
发明人： Su Jin SUNG , Byung Hoon KANG , Seung KIM , Young Ok PARK , Gyu In SHIM
摘要： 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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