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公开(公告)号：US11747250B2
公开(公告)日：2023-09-05
申请号：US17546655
申请日：2021-12-09
发明人： Minsang Koo , Do Kyung Kim , Sanghoon Kim , Seungho Kim , Seongjin Hwang , Jung Hoon Kong , Dong Gyu Kim
CPC分类号： G01N3/303 , G01N3/30 , G01M7/08 , G01N2203/0033 , G01N2203/0076 , G01N2203/0282 , G01N2203/04 , G01N2203/0676
摘要： An impact test apparatus includes a base plate having an upper surface on which a specimen is placed, a collision member that collides with the specimen, a dropping unit that drops the collision member from an upper area of the specimen to the specimen and adjusts a height that the collision member drops, a velocity measurement unit that measures a collision velocity of the collision member when the collision member collides with the specimen, and an evaluation unit that produces a representative value that is a collision velocity at which a probability of breakage of the specimen is about 50%, and evaluates an impact resistance of the specimen based on the representative value.
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公开(公告)号：US11891329B2
公开(公告)日：2024-02-06
申请号：US16861791
申请日：2020-04-29
发明人： Seung Kim , Byunghoon Kang , Seungho Kim , Youngok Park , Sujin Sung , Gyuin Shim
IPC分类号： C22C21/08 , C22F1/047 , C03C21/00 , C03B18/04 , C03B27/03 , G06F1/16 , C03C3/04 , C03C3/083 , G02F1/1333
CPC分类号： C03C21/002 , C03B18/04 , C03B27/03 , C03C3/04 , C03C3/083 , G06F1/1637 , C03C2203/24 , G02F1/133331 , G06F2200/1634 , Y10T428/315
摘要： A window includes a base region and a compressive stress region disposed on the base region. The compressive stress region includes Li+, Na+, and K+ ions. The compressive stress region includes a first compressive stress portion in which a concentration of the K+ ions decreases, a concentration of Na+ ions increases, and a concentration of the Li+ ions increases, from a surface of the window toward the base region. A second compressive stress portion is adjacent to the first compressive stress portion. In the second compressive stress portion, the concentration of the Na+ ion decreases and the concentration of the Li+ ion increases, from the first compressive stress portion toward the base region. The window thereby has a high surface compressive stress value and impact resistance.
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3.发明授权公开(公告)号：US11673829B2
公开(公告)日：2023-06-13
申请号：US16729783
申请日：2019-12-30
发明人： Hoikwan Lee , Seung Kim , Seungho Kim
CPC分类号： C03C21/002 , H05K5/0017 , H05K5/03 , H01L51/524 , H01L2251/5338 , H05K5/0226
摘要： A window panel includes: a substrate having a thickness of less than 100 μm and including a first surface and a second surface facing each other in a thickness direction; first ions dispersed in the substrate and each having a first ion radius; and second ions dispersed in the substrate and each having a second ion radius which is greater than the first ion radius, wherein the second ions generate a compressive stress, the compressive stress is reduced with depth from the first surface or the second surface within a range from the first surface or the second surface to a ½ point of the thickness.
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公开(公告)号：US11474561B2
公开(公告)日：2022-10-18
申请号：US17200327
申请日：2021-03-12
发明人： Sanghoon Kim , Minsang Koo , Kyung-Man Kim , Seungho Kim , Min-Hoon Choi , Seongjin Hwang
IPC分类号： G06F1/16
摘要： A window includes a first cover layer, a second cover layer, and a first adhesive part. The first cover layer includes a first non-folding area, a folding area, and a second non-folding area that are arranged in a first direction, and a plurality of first recessed portions recessed from a top surface of the folding area and extended in a second direction intersecting the first direction. The second cover layer is disposed on the first cover layer. The first adhesive part is disposed between the first cover layer and the second cover layer, and includes protrusions disposed in the plurality of first recessed portions of the first cover layer.
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公开(公告)号：US10804477B2
公开(公告)日：2020-10-13
申请号：US16205695
申请日：2018-11-30
发明人： Seung Kim , Junehyoung Park , Jeongwoo Park , Seungho Kim , Hoikwan Lee
摘要： A flexible display device, which has a bending area and a non-bending area, includes a display panel, and a window member disposed on the display panel and including a first glass substrate, a second glass substrate disposed opposite to the second glass substrate, and a bonding layer disposed between the first glass substrate and the second glass substrate. The bonding layer includes a first bonding part overlapping the bending area and a second bonding part overlapping the non-bending area and having a modulus greater than a modulus of the first bonding part.
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公开(公告)号：US12037278B2
公开(公告)日：2024-07-16
申请号：US17404926
申请日：2021-08-17
发明人： Seung Kim , Byunghoon Kang , Kyungrok Ko , Seungho Kim , Young-Seok Seo , Gyuin Shim
IPC分类号： C03B23/03
CPC分类号： C03B23/0302 , C03B23/0307
摘要： Provided is a window molding apparatus including an inner molding part including a core molding part, which includes a plurality of sub-bottom surfaces having different curvature radii, and a flat molding part spaced apart from the sub-bottom surfaces and disposed on the core molding part, and an outer molding part which is disposed below the inner molding part with a member to be processed therebetween and in which a groove corresponding to the core molding part is defined. The outer molding part includes a lower surface, an upper surface configured to face the lower surface, and a plurality of sub-groove surfaces having different curvature radii that define the groove to provide a window including sub-bent portions having different curvature radii.
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公开(公告)号：US20220272855A1
公开(公告)日：2022-08-25
申请号：US17462294
申请日：2021-08-31
发明人： Changmoo Lee , Byunghoon Kang , Cheolmin Park , Seungho Kim , Hoikwan Lee
摘要： A cover window includes a lower surface and an upper surface opposite to the lower surface. The upper surface includes: a center area extending in a first direction and being spaced apart from the lower surface by a first interval in a thickness direction; a first curved area extending in a curved shape from a first side of the center area; and a first area extending from the first curved area in the first direction and being spaced apart from the lower surface by a second interval in the thickness direction; and the first curved area includes a first partial area concavely extending from the center area and a second partial area convexly extending from the first partial area in a cross-sectional view.
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公开(公告)号：US20220135462A1
公开(公告)日：2022-05-05
申请号：US17404926
申请日：2021-08-17
发明人： Seung Kim , Byunghoon Kang , Kyungrok Ko , Seungho Kim , Young-Seok Seo , Gyuin Shim
IPC分类号： C03B23/03
摘要： Provided is a window molding apparatus including an inner molding part including a core molding part, which includes a plurality of sub-bottom surfaces having different curvature radii, and a flat molding part spaced apart from the sub-bottom surfaces and disposed on the core molding part, and an outer molding part which is disposed below the inner molding part with a member to be processed therebetween and in which a groove corresponding to the core molding part is defined. The outer molding part includes a lower surface, an upper surface configured to face the lower surface, and a plurality of sub-groove surfaces having different curvature radii that define the groove to provide a window including sub-bent portions having different curvature
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9.发明申请公开(公告)号：US20190011605A1
公开(公告)日：2019-01-10
申请号：US15952119
申请日：2018-04-12
发明人： Jeongwoo Park , Seungho Kim , Jong-hoon Yeum , Seung Kim , Junehyoung Park , Hoikwan Lee , Woojin Cho
摘要： A glass member for a display device, a method of fabricating a glass member, and a display device including a glass member are provided. A method of fabricating a glass member for a display device includes: preparing a glass substrate including a first surface, a second surface facing the first surface, and a side surface connecting the first surface to the second surface; forming a protection layer on the side surface to cover a portion of the side surface; and etching a portion of the glass substrate exposed by the protection layer.
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公开(公告)号：US12105564B2
公开(公告)日：2024-10-01
申请号：US17961082
申请日：2022-10-06
发明人： Dawoon Kim , Kyungman Kim , Sanghoon Kim , Sunghoon Kim , Seungho Kim , Yuri Kim , Min-Hoon Choi , Seongjin Hwang
IPC分类号： G06F1/16
CPC分类号： G06F1/1681 , G06F1/1641 , G06F1/1652
摘要： A display device including: a display module including a display folding portion and a display curved portion adjacent to the display folding portion, wherein the display curved portion has a curvature when the display folding portion is folded; and a window disposed on the display module, the window including a first surface and a second surface opposite to the first surface, and having first grooves overlapping the display folding portion and second grooves overlapping the display curved portion, wherein the first grooves are formed in the first surface of the window and the second grooves are formed in the second surface of the window.
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