公开(公告)号：US12054419B2

公开(公告)日：2024-08-06

申请号：US17335309

申请日：2021-06-01

Applicant: AGC Inc.

Inventor： Kensuke Fujii ,  Shinji Kobune ,  Minoru Tamada ,  Hitoshi Mishiro

IPC: C03C17/34 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C4/18 ,  C03C15/00 ,  C03C17/42 ,  C03C21/00 ,  C09D1/00 ,  C09D5/00 ,  C09D5/16 ,  G02B1/115 ,  G02B27/00 ,  G02B5/02

CPC classification number: C03C17/3417 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C4/18 ,  C03C15/00 ,  C03C17/42 ,  C03C21/002 ,  C09D1/00 ,  C09D5/006 ,  C09D5/1675 ,  G02B1/115 ,  G02B27/0006 ,  C03C2204/00 ,  C03C2217/218 ,  C03C2217/734 ,  C03C2218/154 ,  C03C2218/31 ,  G02B5/0268

Abstract: A cover glass includes: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate, the surface having the convex and concave shape. In the cover glass, a difference Δa* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference Δb* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression: √{(Δa*)2+(Δb*)2}≤4.

公开(公告)号：US11339087B2

公开(公告)日：2022-05-24

申请号：US17142088

申请日：2021-01-05

Applicant: AGC Inc.

Inventor： Hitoshi Mishiro ,  Keiko Koyama ,  Minoru Tamada

IPC: C03C17/42 ,  C03C15/00 ,  C03C19/00 ,  C03C17/30 ,  C03C21/00 ,  C03C15/02 ,  G02B1/18 ,  C09D5/16 ,  G02B1/11 ,  C09D5/00

Abstract: An antiglare glass substrate includes a glass substrate having a first main surface and a second main surface that is opposite to the first main surface. The first main surface has undergone an antiglare treatment and a fluorine-containing organosilicon compound coating film as an antifouling film is laminated thereon. The first main surface partly includes a non-antiglare-treated portion that has not undergone the antiglare treatment. The non-antiglare-treated portion has a surface roughness Ra of less than 10 nm. A difference in height along a plate thickness direction of the glass substrate between the antiglare-treated portion that has undergone the antiglare treatment and the non-antiglare-treated portion is 10 μm or larger and 200 μm or less.

公开(公告)号：US11644706B2

公开(公告)日：2023-05-09

申请号：US16718633

申请日：2019-12-18

Applicant: AGC INC.

Inventor： Hitoshi Mishiro ,  Takehiko Nose ,  Minoru Tamada ,  Yohei Kawai ,  Naoya Wada

IPC: G02F1/1335 ,  G02F1/1333 ,  C03C15/00 ,  C03C17/30

CPC classification number: G02F1/133502 ,  C03C15/00 ,  C03C17/30 ,  G02F1/133308 ,  G02F1/133331

Abstract: The present invention relates to a glass plate which is provided with a first main surface, and a second main surface which faces the first main surface. An antiglare portion and a non-antiglare portion are provided to the first main surface. The average lengths (RSm) of elements of roughness curves of the antiglare portion and the non-antiglare portion are respectively 1 μm or higher. The difference between the RSm of the antiglare portion and the RSm of the non-antiglare portion is 100 μm or lower.

公开(公告)号：US10981827B2

公开(公告)日：2021-04-20

申请号：US15934023

申请日：2018-03-23

Applicant: AGC INC

Inventor： Hitoshi Mishiro ,  Keiko Koyama ,  Minoru Tamada

IPC: C03C17/42 ,  C03C15/00 ,  C03C17/30 ,  C03C19/00 ,  C03C21/00 ,  C03C15/02 ,  G02B1/18

Abstract: An antiglare glass substrate includes a glass substrate having a first main surface and a second main surface that is opposite to the first main surface. The first main surface has undergone an antiglare treatment and a fluorine-containing organosilicon compound coating film as an antifouling film is laminated thereon. The first main surface partly includes a non-antiglare-treated portion that has not undergone the antiglare treatment. The non-antiglare-treated portion has a surface roughness Ra of less than 10 nm. A difference in height along a plate thickness direction of the glass substrate between the antiglare-treated portion that has undergone the antiglare treatment and the non-antiglare-treated portion is 10 μm or larger and 200 μm or less.