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公开(公告)号：US10822264B2
公开(公告)日：2020-11-03
申请号：US15458519
申请日：2017-03-14
Applicant: AGC INC.
Inventor： Tetsushi Takiguchi , Shunji Inoue , Kazutaka Ono , Hirofumi Tokunaga , Jun Akiyama , Yasumasa Kato , Taketoshi Taniguchi
Abstract: The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600° C. at 100° C./hour, holding the glass substrate at 600° C. for 80 minutes, and lowering the temperature from 600° C. to normal temperature at 100° C./hour.
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Patent Agency Ranking
公开(公告)号：US10654742B2
公开(公告)日：2020-05-19
申请号：US16047660
申请日：2018-07-27
Applicant: AGC Inc.
Inventor： Isao Saito , Yasumasa Kato
IPC: C03B27/012 , C03B27/04 , C03B29/02 , C03B29/08 , C03C21/00
Abstract: To provide a method for tempering glass to obtain tempered glass having high surface quality and a deep compression stress layer. The present invention relates to a method for tempering a glass plate comprising a preparation step of preparing a glass plate having a surface temperature of at most the strain point, an internal heating step of heating the internal temperature of the glass plate to be at least the annealing point, while maintaining the surface temperature of the glass plate within 10 minutes, or to be at most the strain point, and a cooling step of cooling the glass plate.
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公开(公告)号：US11586084B2
公开(公告)日：2023-02-21
申请号：US16454858
申请日：2019-06-27
Applicant: AGC Inc.
Inventor： Kazutaka Ono , Yasumasa Kato , Masaya Kunigita
IPC: B32B15/04 , B32B17/06 , G02F1/1362 , C03C3/091 , C03C17/36 , G02F1/1333 , G02F1/1343 , H01L27/12 , H01L29/423
Abstract: The present invention relates to a liquid crystal display panel having a predetermined size, containing a wiring film formed of a metal, an insulating film containing an inorganic substance and a substrate formed of a non-alkali glass, in which the metal has the product of a Young's modulus (E) and a thermal expansion coefficient (α) at room temperature falling within a predetermined range, α of the inorganic substance is smaller than that of the non-alkali glass, the non-alkali glass has E of from 70 GPa to 95 GPa and α of from 32×10−7 to 45×10−7 (1/° C.) in which E and α satisfies a predetermined formula, and has a predetermined composition.
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公开(公告)号：US10386686B2
公开(公告)日：2019-08-20
申请号：US15605235
申请日：2017-05-25
Applicant: AGC Inc.
Inventor： Kazutaka Ono , Yasumasa Kato , Masaya Kunigita
IPC: B32B15/04 , B32B17/06 , G02F1/1362 , C03C3/091 , G02F1/1343 , C03C17/36 , G02F1/1333 , H01L27/12 , H01L29/423
Abstract: The present invention relates to a liquid crystal display panel having a predetermined size, containing a wiring film formed of a metal, an insulating film containing an inorganic substance and a substrate formed of a non-alkali glass, in which the metal has the product of a Young's modulus (E) and a thermal expansion coefficient (α) at room temperature falling within a predetermined range, α of the inorganic substance is smaller than that of the non-alkali glass, the non-alkali glass has E of from 70 GPa to 95 GPa and α of from 32×10−7 to 45×10−7 (1/° C.) in which E and α satisfies a predetermined formula, and has a predetermined composition.
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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：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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