公开(公告)号：US11198634B2

公开(公告)日：2021-12-14

申请号：US15686496

申请日：2017-08-25

Applicant: AGC Inc.

Inventor： Koki Moriya ,  Takeaki Ono

IPC: B32B3/24 ,  C03B23/035 ,  B28D1/14 ,  C03B23/03 ,  C03B23/025 ,  B32B3/26 ,  C03C21/00

Abstract: A curved cover glass includes a plate-like glass body having a first surface, a second surface facing the first surface and at least one end face. The plate-like glass body has an average thickness of 5 mm or less. Among tangential directions on the first surface at an arbitrary point, when an X-axis is assumed to be a direction in which a first curvature radius R1 in cross-section of the first surface in an XZ plane is minimum, the first surface has a curvature part in which the surface is bent in the X-axis direction at least at one point on the first surface. The first curvature radius R1 is 10,000 mm or less. The curvature part includes at least one opening or concave part extending from the first surface to the second surface.

公开(公告)号：US20190094604A1

公开(公告)日：2019-03-28

申请号：US16202947

申请日：2018-11-28

Applicant: AGC INC.

Inventor： Atsushi INOUE ,  Yasuhiro Inoue ,  Takeaki Ono ,  Kyohei Hashimoto

IPC: G02F1/1333 ,  G02F1/1335 ,  G02B1/11

CPC classification number: G02F1/133308 ,  C03C19/00 ,  C03C21/00 ,  C09J2203/318 ,  G02B1/11 ,  G02F1/133502 ,  G02F2001/133331 ,  G02F2202/28 ,  G09F9/00

Abstract: A cover glass for covering a display panel of a display device, includes a front surface not to be faced to the display panel, a back surface to be faced the display panel, a front-side chamfered part which is a chamfered part on the side of the front surface, and a back-side chamfered part which is a chamfered part on the side of the back surface. The front-side chamfered part has a surface roughness Ra of more than 100 nm. The back-side chamfered part has a surface roughness Ra of 100 nm or less.

公开(公告)号：US12226874B2

公开(公告)日：2025-02-18

申请号：US17571184

申请日：2022-01-07

Applicant: AGC Inc.

Inventor： Takeaki Ono ,  Koki Moriya

IPC: B24B9/10 ,  C03C19/00

Abstract: A glass substrate includes: a first major surface; a second major surface that is opposite to the first major surface; an end surface interposed between the first major surface and the second major surface; a first boundary surface that is interposed between the first major surface and the end surface and connected to the end surface; and a second boundary surface that is connected to the first major surface and the first boundary surface. The second boundary surface is a convex curved surface, and the second boundary surface has a radius of curvature R2 of 0.1 mm or larger and 2.0 mm or smaller.

公开(公告)号：US10678081B2

公开(公告)日：2020-06-09

申请号：US16202947

申请日：2018-11-28

Applicant: AGC INC.

Inventor： Atsushi Inoue ,  Yasuhiro Inoue ,  Takeaki Ono ,  Kyohei Hashimoto

IPC: G02F1/1333 ,  G09F9/00 ,  C03C19/00 ,  C03C21/00 ,  G02B1/11 ,  G02F1/1335

Abstract: A cover glass for covering a display panel of a display device, includes a front surface not to be faced to the display panel, a back surface to be faced the display panel, a front-side chamfered part which is a chamfered part on the side of the front surface, and a back-side chamfered part which is a chamfered part on the side of the back surface. The front-side chamfered part has a surface roughness Ra of more than 100 nm. The back-side chamfered part has a surface roughness Ra of 100 nm or less.