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公开(公告)号：US11548207B2
公开(公告)日：2023-01-10
申请号：US16863488
申请日：2020-04-30
申请人： SKC CO., LTD.
发明人： Gun Uk Kim , Young Min Heo , Sechul Lee , Jin-Seok Park , Sang Min Choi
IPC分类号： B29C55/14 , B32B17/10 , B32B27/08 , B32B27/28 , B32B27/36 , H05K5/03 , B32B27/06 , C08J5/18 , G09F9/30 , B29L31/34 , B29K67/00
摘要： The polyester film according to the embodiment achieves the elasticity required for a cover of a flexible display by increasing the rate of increase in stress in an initial stage of strain to a certain level or higher. As a result, it is possible to maintain the original characteristics when it is applied to a cover of a flexible display device and subjected to a plurality of repeated folding. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.
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公开(公告)号：US11315705B2
公开(公告)日：2022-04-26
申请号：US16401292
申请日：2019-05-02
申请人： SKC Co., Ltd.
发明人： Sechul Lee , Young Min Heo , Jung Hee Ki , Sang Min Choi
摘要： A cable includes an insulating part and one or more conducting parts disposed inside the insulating part. The insulating part includes a polymer resin layer with a product of shrinkage ratios CMD*TD, which is expressed as a product of a longitudinal shrinkage ratio and a transverse shrinkage ratio, of less than 0.24.
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公开(公告)号：US11642825B2
公开(公告)日：2023-05-09
申请号：US17544588
申请日：2021-12-07
申请人： SKC CO., LTD.
发明人： A Rim Yu , Gun Uk Kim , Sechul Lee , Sun Ki Lee , Sang Min Choi , Jin-Seok Park , Jung Won Yu
CPC分类号： B29C48/0018 , B05D7/536 , B29C48/022 , B29C48/08 , B29K2067/00 , B29K2995/005 , B29K2995/0026 , B29K2995/0046 , B29K2995/0077 , B29L2007/00 , B29L2031/3475
摘要： A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.
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公开(公告)号：US11630239B2
公开(公告)日：2023-04-18
申请号：US17071104
申请日：2020-10-15
申请人： SKC CO., LTD.
发明人： Gun Uk Kim , Sang Min Choi , Young Min Heo
摘要： The polyester film according to an embodiment has a coefficient of determination (R2) of the strain with respect to stress and a crystallinity adjusted to specific ranges, whereby it is possible to achieve the flexibility that does not cause deformation even when a certain stress is sustained for a long period of time and the resistant characteristics to the impact of external pressing. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.
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公开(公告)号：US11551584B2
公开(公告)日：2023-01-10
申请号：US17071068
申请日：2020-10-15
申请人： SKC CO., LTD.
发明人： Gun Uk Kim , Young Min Heo , Sang Min Choi
摘要： In the polyester film according to an embodiment, the strain with respect to tensile load and the crystallinity are adjusted to specific ranges, whereby it is possible to achieve the flexibility that does not cause deformation even when a certain load is sustained for a long period of time and the resistant characteristics to the impact of external pressing. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.
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