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公开(公告)号：US20190241468A1
公开(公告)日：2019-08-08
申请号：US16204315
申请日：2018-11-29
发明人： Seung KIM , Seungho KIM , Wonsang PARK , Jeongwoo PARK , Junehyoung PARK , Hoikwan LEE
CPC分类号： C03C21/006 , C03C19/00 , C03C21/002 , C03C23/007 , C03C23/0075 , C03C2203/20
摘要： A method of manufacturing a strengthened glass substrate, the method including: thermoforming a glass substrate, wherein a surface of the glass substrate includes defective depressions generated by the thermoforming; forming a silica rich layer by adding an acid to the surface of the glass substrate including the defective depressions generated by the thermoforming; removing the silica rich layer and a portion of the defective depressions by cleaning the surface of the glass substrate on which the silica rich layer is formed with an alkali; and eliminating the remaining portion of the defective depressions by polishing the surface of the glass substrate including the remaining portion of the defective depressions.
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公开(公告)号：US20230345758A1
公开(公告)日：2023-10-26
申请号：US18347150
申请日：2023-07-05
发明人： Hoikwan LEE
CPC分类号： H10K50/841 , H10K50/86 , H10K59/12 , H10K59/40 , H10K71/00 , H10K77/111 , H10K59/1201 , H10K2102/311
摘要： A display apparatus includes a display panel including pixels and a cover window disposed on the display panel. The cover window includes a flat portion having a first thickness, and a folding portion having a second thickness that is less than the first thickness of the flat portion, the folding portion being adjacent to the flat portion. A first stress profile of the flat portion of the cover window that is a stress change along a depth direction from a surface of the flat portion of the cover window is different from a second stress profile of the folding portion of the cover window that is a stress change along a depth direction from a surface of the folding portion of the cover window.
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公开(公告)号：US20220098097A1
公开(公告)日：2022-03-31
申请号：US17296255
申请日：2019-04-23
发明人： Hoikwan LEE , Minki KIM , Byeon-Beon KIM , Seungho KIM , Yuri KIM , Jonghoon YEUM
摘要： A window including glass configured to protect an electronic panel from an external impact and a manufacturing method therefor include a base substrate having a front surface and a rear surface; and a bezel layer disposed on the rear surface of the base substrate, wherein the front surface of the base substrate has a roughness ranging from 0.2 nm to 3 nm, and at least a portion of the base substrate may be bent.
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4.发明申请公开(公告)号：US20170239771A1
公开(公告)日：2017-08-24
申请号：US15435234
申请日：2017-02-16
发明人： Cheolmin PARK , Hoikwan LEE , Seung KIM , Jaejoong KWON , Eun-kyung YEON , Minsoo KIM , Seungho KIM , Jong-hoon YEUM
IPC分类号： B24B7/10
摘要： A method of manufacturing a window for a display apparatus according to the present invention includes: providing, on a stage, a substrate including a foldable part bending around a folding axis extending in a first direction, and forming a groove on the foldable part. The forming the groove includes: grinding the foldable part by using a first machining wheel; grinding the foldable part by using a second machining wheel; and machining the foldable part by using a polishing wheel. The groove has at least one radius of curvature. The first machining wheel includes first abrasive grains, and the second machining wheel includes second abrasive grains less in size than the first abrasive grains.
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公开(公告)号：US20230303436A1
公开(公告)日：2023-09-28
申请号：US18325164
申请日：2023-05-30
发明人： Hoikwan LEE , Cheolmin PARK , Eun-Kyung YEON , Jeongseok LEE , Seungho KIM
CPC分类号： C03C21/002 , B32B17/06 , C03C3/083 , C03C23/007 , H04M1/185
摘要： A method of manufacturing a window member includes performing a first reinforcement operation including performing a first ion-exchange treatment on an initial window member. The first ion-exchange treatment includes applying ion salts at a temperature equal to or greater than a first temperature of about 500° C. A stress relief operation includes performing a heat treatment and/or a salt treatment on the initial window member to which the first reinforcement operation is performed. A second reinforcement operation includes performing a second ion-exchange treatment on the initial window member to which the stress relief operation is performed.
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公开(公告)号：US20210260846A1
公开(公告)日：2021-08-26
申请号：US17091365
申请日：2020-11-06
发明人： Byeong-Beom KIM , MINKI KIM , Yuri KIM , Hoikwan LEE
IPC分类号： B32B3/26 , C09D133/08 , C09D163/00 , C09D7/61 , B32B17/10
摘要： A window includes a coating layer including a front surface, a rear surface, a first region having a constant distance between the front surface and the rear surface in a thickness direction, and a second region in which a distance between the front surface and the rear surface reduces in a direction away from the first region; and a bezel layer disposed on the rear surface of the coating layer, where the coating layer includes inorganic particles, an acrylate resin and an epoxy resin.
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公开(公告)号：US20180037497A1
公开(公告)日：2018-02-08
申请号：US15661709
申请日：2017-07-27
发明人： Hoikwan LEE , Seung KIM , Seungho KIM , Cheolmin PARK , Eun-kyung YEON , Jong-hoon YEUM , Jeongseok LEE
IPC分类号： C03C21/00
摘要： A method of treating a glass substrate includes providing a glass substrate and strengthening the glass substrate by providing a mixed molten salt including a strengthening molten salt and an aluminum salt to the glass substrate.
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8.发明申请公开(公告)号：US20170285818A1
公开(公告)日：2017-10-05
申请号：US15472498
申请日：2017-03-29
发明人： Seung KIM , Hoikwan LEE , Seungho KIM , Jeongwoo PARK
CPC分类号： G06F3/0412 , G06F3/044 , G06F2203/04103 , H01L27/1218 , H01L27/323 , H01L27/3244 , H01L51/0096
摘要： A method for fabricating a reinforced glass substrate includes forming a plurality of groove patterns in at least one surface of a plate glass, applying an ion exchange paste to the at least one surface in which the groove patterns are formed, applying an electric field to the plate glass coated with the ion exchange paste to form a reinforced plate glass, and cutting the reinforced plate glass to form a reinforced glass substrate.
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9.发明申请公开(公告)号：US20200346314A1
公开(公告)日：2020-11-05
申请号：US16931316
申请日：2020-07-16
发明人： Cheolmin PARK , Hoikwan LEE , Seung KIM , Jaejoong KWON , Eun-kyung YEON , Minsoo KIM , Seungho KIM , Jong-hoon YEUM
IPC分类号： B24B7/10
摘要： A method of manufacturing a window for a display apparatus according to the present invention includes: providing, on a stage, a substrate including a foldable part bending around a folding axis extending in a first direction, and forming a groove on the foldable part. The forming the groove includes: grinding the foldable part by using a first machining wheel; grinding the foldable part by using a second machining wheel; and machining the foldable part by using a polishing wheel. The groove has at least one radius of curvature. The first machining wheel includes first abrasive grains, and the second machining wheel includes second abrasive grains less in size than the first abrasive grains.
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10.发明申请公开(公告)号：US20200207659A1
公开(公告)日：2020-07-02
申请号：US16729783
申请日：2019-12-30
发明人： Hoikwan LEE , Seung KIM , Seungho KIM
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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