公开(公告)号：US20240300847A1

公开(公告)日：2024-09-12

申请号：US18405212

申请日：2024-01-05

Applicant: Samsung Display Co., LTD. ,  Kongju National University Industry-University Cooperation Foundation

Inventor： Seung KIM ,  Woon Jin CHUNG ,  Min Gyeong KANG ,  Seung Ho KIM ,  Kyeong Dae PARK ,  Seong Young PARK ,  Cheol Min PARK ,  Hui Yeon SHON ,  Gyu In SHIM ,  Jae Gil LEE ,  Jin Won JANG ,  So Mi JUNG

IPC: C03C3/091

CPC classification number: C03C3/091

Abstract: A glass composition, a glass article prepared therefrom, and a display device are provided. The a glass article includes, as a glass composition, 62 to 72 mol % of SiO2, greater than 0 and equal to or less than 10 mol % of Al2O3, 10 to 20 mol % of Na2O, greater than 0 and equal to or less than 5 mol % of K2O, 7 to 18 mol % of a sum of CaO and MgO with respect to a total weight of the glass article, satisfying Relation 1 below, and having a thickness of 100 μm or less: 0.1≤Al2O3/(sum of Na2O and K2O)≤0.6 . . . (Relation 1), where Al2O3, Na2O and K2O are contents of corresponding components measured in mole percents (mol %).

公开(公告)号：US20240150214A1

公开(公告)日：2024-05-09

申请号：US18412263

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: C03B18/02 ,  C03C21/00

CPC classification number: C03B18/02 ,  C03C21/002

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.

公开(公告)号：US20230219837A1

公开(公告)日：2023-07-13

申请号：US17891988

申请日：2022-08-19

Applicant: Samsung Display Co., LTD. ,  Kongju National University Industry University Cooperation Foundation

Inventor： Seung Ho KIM ,  Woon Jin CHUNG ,  Kyeong Dae PARK ,  Min Gyeong KANG ,  Seung KIM ,  Cheol Min PARK ,  Hyun Chul BAE ,  Hui Yeon SHON ,  Gyu In SHIM ,  So Mi JUNG ,  Seong Ho LEE

IPC: C03C3/091 ,  C03C3/085

CPC classification number: C03C3/091 ,  C03C3/085

Abstract: A glass composition, glass article prepared from the glass composition, and display device are provided. The glass article includes, as a glass composition, about 45 to about 65 mol % of SiO2, about 15 to about 25 mol % of Al2O3, about 15 to about 25 mol % of Na2O, and 0 to about 10 mol % of B2O3 based on a total weight of the glass composition, where the glass composition has a thermal expansion coefficient of about 70*10−7 K−1 to about 85*10−7 K−1.

公开(公告)号：US20220380251A1

公开(公告)日：2022-12-01

申请号：US17816710

申请日：2022-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gyu In SHIM ,  Seung KIM ,  Byung Hoon KANG ,  Young Ok PARK ,  Su Jin SUNG

IPC: C03C21/00

Abstract: 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.

公开(公告)号：US20220088741A1

公开(公告)日：2022-03-24

申请号：US17348745

申请日：2021-06-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gyu In SHIM ,  Byung Hoon Kang ,  Seung Kim ,  Seung Ho Kim

IPC: B24B7/24 ,  C03C15/02 ,  B24B7/07

Abstract: 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.

公开(公告)号：US20210188695A1

公开(公告)日：2021-06-24

申请号：US16937628

申请日：2020-07-24

Applicant: Samsung Display Co., LTD.

Inventor： Gyu In SHIM ,  Byung Hoon KANG ,  Seung KIM ,  Young Ok PARK ,  Su Jin SUNG

IPC: C03C3/087 ,  G06F1/16

Abstract: 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.

公开(公告)号：US20210179488A1

公开(公告)日：2021-06-17

申请号：US16926488

申请日：2020-07-10

Applicant: Samsung Display Co., LTD.

Inventor： Su Jin SUNG ,  Byung Hoon KANG ,  Seung KIM ,  Young Ok PARK ,  Gyu In SHIM

IPC: C03C21/00 ,  C03C3/083

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.