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公开(公告)号：US10775657B2
公开(公告)日：2020-09-15
申请号：US16142218
申请日：2018-09-26
Applicant: AGC Inc.
Inventor： Yasuhiro Inoue , Atsushi Inoue , Ryou Hokari , Kensuke Fujii
Abstract: A transparent substrate includes a first principal surface; a second principal surface as a principal surface on the opposite side of the first principal surface; a lateral surface extending between the first principal surface and the second principal surface; and a first boundary surface disposed between the first principal surface and the lateral surface and having a plurality of concave portions; wherein the first boundary surface is configured such that each of the concave portions has a bottom with a curvature and that the frequency of a maximum curvature is less than 3% in a frequency distribution of the curvatures of the concave portions.
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公开(公告)号：US11077645B2
公开(公告)日：2021-08-03
申请号：US16238579
申请日：2019-01-03
Applicant: AGC Inc.
Inventor： Atsushi Inoue , Yasuhiro Inoue , Kyohei Hashimoto , Takashi Shibuya
Abstract: To provide a cover member excellent in edge safety, and a display device in which said cover member is used. A cover member which covers a display panel of a display device and which has a front surface that does not face the display panel and a rear surface that faces the display panel, said cover member being a laminate in which a first glass plate constituting said front surface and a second glass plate constituting said rear surface are bonded via an intermediate film interposed therebetween, wherein the first glass plate has a first inside chamfer which is a chamfer on the intermediate film side, and the first inside chamfer and the second glass plate or the intermediate film are bonded by a resin.
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公开(公告)号：US10747037B2
公开(公告)日：2020-08-18
申请号：US16534002
申请日：2019-08-07
Applicant: AGC Inc.
Inventor： Ryou Hokari , Atsushi Inoue , Yasuhiro Inoue
IPC: G02F1/1333 , B32B17/10
Abstract: A display device includes a display panel, and a cover member with which the display panel is covered. The cover member includes a second main surface facing the display panel, a first main surface opposite to the second main surface, and an end surface connecting the first main surface to the second main surface. A line D is defined as an imaginary line that passes through an edge E formed by the first main surface and the end surface, and members of a first layer to a nth layer (n: an inter of 2 or more) are arranged on the line D, the cover member being the first layer. A gap exists in a part between the cover member and the member of the nth layer. The display device satisfies the specific relations (1) to (3).
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公开(公告)号：US20200050049A1
公开(公告)日：2020-02-13
申请号：US16534002
申请日：2019-08-07
Applicant: AGC Inc.
Inventor： Ryou Hokari , Atsushi Inoue , Yasuhiro Inoue
IPC: G02F1/1333 , B32B17/10
Abstract: A display device includes a display panel, and a cover member with which the display panel is covered. The cover member includes a second main surface facing the display panel, a first main surface opposite to the second main surface, and an end surface connecting the first main surface to the second main surface. A line D is defined as an imaginary line that passes through an edge E formed by the first main surface and the end surface, and members of a first layer to a nth layer (n: an inter of 2 or more) are arranged on the line D, the cover member being the first layer. A gap exists in a part between the cover member and the member of the nth layer. The display device satisfies the specific relations (1) to (3).
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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.
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Patent Agency Ranking
公开(公告)号：US11590844B2
公开(公告)日：2023-02-28
申请号：US15931705
申请日：2020-05-14
Applicant: AGC Inc.
Inventor： Minoru Tamada , Yasuhiro Inoue
Abstract: A glass substrate includes a pair of main surfaces including a first main surface and a second main surface opposed to the first main surface; an edge surface arranged along a direction orthogonal to the pair of main surfaces; and a connecting surface arranged between the first main surface and the edge surface. The connecting surface has a plurality of pores. A difference between a 50% particle diameter of the pores in a portion 20 μm distant from the first main surface and a 50% particle diameter in a portion 20 μm distant from the edge surface is 10 μm or less.
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公开(公告)号：US11332403B2
公开(公告)日：2022-05-17
申请号：US16545241
申请日：2019-08-20
Applicant: AGC Inc.
Inventor： Kyohei Hashimoto , Atsushi Inoue , Yasuhiro Inoue , Yasumasa Kato , Yasuji Fukasawa , Yusuke Kobayashi , Masaaki Konishi
Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.5 mm, a thickness of a compressive stress layer being 10 μm or more, and a surface compressive stress of the compressive stress layer being 650 MPa or higher, and when the thickness (unit: mm) of the cover glass is represented by x and an energy absorption rate (unit: %) of the holding portion is represented by y, Expression (1) is satisfied, and impact resistance of the cover glass is excellent: y≥−37.1×ln(x)+53.7 (1).
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公开(公告)号：US20200277222A1
公开(公告)日：2020-09-03
申请号：US16802619
申请日：2020-02-27
Applicant: AGC Inc.
Inventor： Yasuhiro Inoue , Atsushi Inoue
IPC: C03C15/00
Abstract: A method for manufacturing a cover glass includes covering partial regions of both main surfaces of a glass sheet with a mask material. The partial regions is opposed to each other. The method further includes etching the glass sheet having the partial regions covered with the mask material by use of an etchant, thereby obtaining a small-piece glass sheet having chamfered portions in the both main surfaces. The method further includes further chamfering at least a part of one main surface of the small-piece glass sheet, thereby providing a difference between surface roughness Ra of the chamfered portion on the one main surface side and surface roughness Ra of the chamfered portion on the other main surface side.
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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.
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公开(公告)号：US10450218B2
公开(公告)日：2019-10-22
申请号：US15812618
申请日：2017-11-14
Applicant: AGC Inc.
Inventor： Kyohei Hashimoto , Atsushi Inoue , Yasuhiro Inoue , Yasumasa Kato , Yasuji Fukasawa , Yusuke Kobayashi , Masaaki Konishi
Abstract: The present invention relates to a vehicle-mounted display device disposed in an interior member of a vehicle. The vehicle-mounted display device of the invention includes: a display panel; a cover glass covering the display panel; a housing accommodating the display panel; and a holding portion holding a position of the housing, in which the cover glass is a tempered glass having a thickness being 0.5 to 2.5 mm, a thickness of a compressive stress layer being 10 μm or more, and a surface compressive stress of a compressive layer being 650 MPa or higher, and when the thickness (unit: mm) of the cover glass is represented by x and an energy absorption rate (unit: %) of the holding portion is represented by y. Expression (1) is satisfied, and impact resistance of the cover glass is excellent: y≥−37.1×ln(x)+53.7 (1).
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