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

IPC: C03C3/093 ,  C03C3/085 ,  H05K5/03

CPC classification number: C03C3/093 ,  C03C3/085 ,  H05K5/03

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

IPC: B32B17/06 ,  B32B7/12 ,  H05K5/03

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.

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

IPC: C03C3/091 ,  H05K5/03

CPC classification number: C03C3/091 ,  H05K5/03

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.