Glass article, display device including the glass article, and method of manufacturing the glass article

Patent metadata

Field	Value
Publication number	US-12391606-B2
Application number	US-202117222374-A
Country	US
Kind code	B2
Filing date	Apr 5, 2021
Priority date	Jun 11, 2020
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A glass article includes a flat portion and a side portion extending from the flat portion and bent in a thickness direction of the glass article, a base disposed on the flat portion and the side portion; and a Beilby layer disposed on the flat portion and not disposed on at least a part of the side portion.

First claim

What is claimed is:

1. A glass article comprising:
a flat portion and a side portion that extends from the flat portion and is bent in a thickness direction of the glass article;
a base disposed on the flat portion and the side portion; and
a Beilby layer disposed on the flat portion and not disposed on at least a part of the side portion.

2. The glass article of claim 1 , wherein a bending angle of the side portion is an obtuse angle.

3. The glass article of claim 1 , wherein
the flat portion includes a first surface, and a second surface opposite to the first surface,
the side portion includes a third surface connected to the first surface, and a fourth surface connected to the second surface, and
the Beilby layer is directly disposed on the first surface and the second surface.

4. The glass article of claim 3 , wherein
at least one of the first surface and the second surface of the flat portion includes at least one first crack indented in the thickness direction of the glass article, and
the Beilby layer fills the at least one first crack.

5. The glass article of claim 4 , wherein a refractive index of the Beilby layer is greater than a refractive index of the base.

6. The glass article of claim 4 , wherein at least one of the third surface and the fourth surface of the side portion includes at least one second crack indented in the thickness direction of the glass article.

7. The glass article of claim 6 , wherein
a width of the at least one first crack of the flat portion is in a range of about 0.05 mm to about 0.15 mm,
a length of the at least one first crack is equal to or less than about 5 mm,
the at least one first crack comprises five or less first cracks,
each of a width of the at least one second crack of the second side portion and a width of the at least one second crack of the third side portion is greater than about 0.15 mm,
each of a length of the at least one second crack of the second side portion and a length of the at least one second crack of the third side portion is greater than about 5 mm, and
the at least one second crack comprises two or more second cracks.

8. The glass article of claim 4 , wherein
the side portion includes:
a first side portion adjacent to the flat portion;
a second side portion connected to the first side portion and including at least one second crack; and
a third side portion connected to the second side portion and including at least one second crack,

the Beilby layer overlaps a part of the first side portion, and
the at least one second crack of the second side portion and the at least one second crack of the third side portion are exposed to an outside.

9. The glass article of claim 1 , wherein the Beilby layer includes cerium (Ce).

10. The glass article of claim 9 , wherein a result of a ball drop test (BDT) on the glass article with a ball weight of 150 g is in a range of about 50 cm to about 80 cm.

11. The glass article of claim 1 , wherein a result of a ball drop test (BDT) on the glass article with a ball weight of 150 g is equal to or greater than about 35 cm.

12. The glass article of claim 1 , wherein
the flat portion includes a first surface, and a second surface opposite to the first surface,
the side portion includes a third surface connected to the first surface, and a fourth surface connected to the second surface,
the side portion terminates at an end surface that connects the third surface to the fourth surface, and
the Beilby layer is not disposed on the end surface.

13. The glass article of claim 1 , wherein
the side portion includes a first area spaced apart from the flat portion, and
the glass article has a same thickness at a center of the flat portion and the first area of the side portion.

14. The glass article of claim 1 , wherein the Beilby layer is disposed on only a part of the side portion, the part of the side portion adjacent to the flat portion.

15. A display device comprising:
a glass article including a flat portion and a side portion extending from the flat portion and bent in a thickness direction of the glass article; and
a display panel disposed on the flat portion and the side portion of the glass article,
wherein the glass article includes:
a base disposed on the flat portion and the side portion of the glass article, and

a Beilby layer disposed on the flat portion of the glass article and not disposed on at least a part of the side portion of the glass article.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Min Ki
• Kim Byeong Beom
• Kim Seung Ho
• Kim Yu Ri
• Lee Hoi Kwan

Classifications

• C03B23/023

  by bending · CPC title

• C03C2204/00

  Glasses, glazes or enamels with special properties · CPC title

• C03C21/002

  to perform ion-exchange between alkali ions (C03C21/005 takes precedence) · CPC title

• C03C4/18

  for ion-sensitive glass · CPC title

• C03C3/093

  containing zinc or zirconium · CPC title