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公开(公告)号：US20220073422A1
公开(公告)日：2022-03-10
申请号：US17412702
申请日：2021-08-26
发明人： Cheol Min Yun
IPC分类号： C03C17/34
摘要： Provided are a glass multilayer structure, a method of producing the same, and a flexible display panel including the same. Specifically, a glass substrate multilayer structure including: a flexible glass substrate, an epoxy siloxane-based hard coating layer formed on one surface of the flexible glass substrate, and a polyimide-based shatterproof layer formed on the other surface of the flexible glass substrate, and a flexible display panel including the same are provided.
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公开(公告)号：US20220073421A1
公开(公告)日：2022-03-10
申请号：US17460904
申请日：2021-08-30
发明人： Cheol Min Yun
摘要： Provided are a glass multilayer structure, a method of producing the same, and a flexible display panel including the same. Specifically, a glass substrate multilayer structure including: a flexible glass substrate, a polyimide-based shatterproof layer formed on one surface of the flexible glass substrate, and an epoxy siloxane-based hard coating layer formed on the shatterproof layer, and a flexible display panel including the same are provided.
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公开(公告)号：US20210341971A1
公开(公告)日：2021-11-04
申请号：US17244033
申请日：2021-04-29
发明人： Jin Su Park , Hye Ri Kim , Jin Hyung Park , Yoo Seock Hwang
摘要： The present invention relates to a polyimide-based film, a window cover film including the polyimide-based film, and a display panel including the polyimide-based film. More specifically, the present invention relates to a polyimide-based film of which a modulus measured according to ASTM D882 is 5 GPa or more and a rate of change of the modulus, after the polyimide-based film is maintained under a high-temperature and high-humidity condition of 60° C. and 90% RH for 500 hours, is 10% or less.
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公开(公告)号：US20210340326A1
公开(公告)日：2021-11-04
申请号：US17246858
申请日：2021-05-03
发明人： Hyeon Jeong Kim , Sang Yoon Park
IPC分类号： C08G73/10
摘要： The present invention relates to a polyimide-based film, a window cover film, and a display panel including the same. More specifically, the present invention relates to a polyimide-based film having a difference (ΔI) between the maximum and minimum values of intensity in a thickness direction of 0.6 or less, when an aromatic ring peak of 1610 to 1630 cm−1 was measured by Raman spectroscopy in which an excitation wavelength is 532 nm, a laser spot is 1 to 2 μm, and a thickness direction measurement interval is 1 μm.
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公开(公告)号：US11137524B2
公开(公告)日：2021-10-05
申请号：US16700129
申请日：2019-12-02
发明人： Jong Nam Ahn , Keon Hyeok Ko , Byoung Sun Ko , Sang Yoon Park , Jin Su Park , Ho Chul Yoon , Tae Sug Jang
摘要： Provided is a hard coating film including a polyamideimide substrate layer and a hard coating layer, each of which has a predetermined refractive index, with a difference in the refractive index between those layers being 0.05. The substrate layer has a tensile modulus of 3 to 7 GPa, at a thickness of 80 μm, as measured according to ASTM D111. The present invention relates to a hard coating film having improved mechanical and optical properties.
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26.发明授权公开(公告)号：US10985356B2
公开(公告)日：2021-04-20
申请号：US15562519
申请日：2016-04-01
发明人： Dong Jin Joo , Su Ji Lee , Kyu Young Cho , Yun Bong Kim , Jae Woong Kim
IPC分类号： H01M2/16 , H01M2/14 , H01M10/02 , H01M10/0525 , H01M10/42 , H01M10/052
摘要： The present invention relates to a composite separation membrane for a lithium secondary battery, having an excellent effect of improving the life time and safety of a battery and a lithium secondary battery including the membrane. The composite separation membrane includes a porous base layer; a heat-resistant layer formed on one side or both sides of the porous base layer; and a fusion layer formed on an outermost layer. The heat-resistant layer includes inorganic particles connected and fixed by binder polymers, and the fusion layer includes crystalline polymers in the form of particles having a melting temperature of 100° C. or higher.
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公开(公告)号：US20210095174A1
公开(公告)日：2021-04-01
申请号：US17034702
申请日：2020-09-28
发明人： Jong Nam Ahn , Hye Jin Kim
摘要： Provided is an antistatic polyimide-based film. More particularly, as an antistatic polyimide-based film for a window cover for protecting a surface of a display device, a window cover film having a protective film formed on the polyimide-based film provides an improvement to a problem of not being used as a film for a display window cover because a portion of the protective film remains on a base layer or a hard coating layer without being peeled off due to static electricity in the protective film or the base layer, or a hard coating layer, or the hard coating layer is peeled off with some or all of the protective film when the protective film is peeled off.
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公开(公告)号：US20210040267A1
公开(公告)日：2021-02-11
申请号：US17077676
申请日：2020-10-22
发明人： Hyeon Jeong Kim , Sang Yoon Park , Tae Sug Jang , Jin Hyung Park
摘要： Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.
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29.发明授权公开(公告)号：US10854864B2
公开(公告)日：2020-12-01
申请号：US16543994
申请日：2019-08-19
发明人： Yun Bong Kim , Won Sub Kwack , Hye Jin Kim , Su Ji Lee , Kyu Young Cho
IPC分类号： H01M4/02 , H01M2/16 , H01M10/0525
摘要： Provided are a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator for a lithium secondary battery includes: a porous substrate; and a coating layer disposed on one side or both sides of the porous substrate and including a first inorganic particle and a second inorganic particle having different lengths of a major axis, and a binder, wherein a moisture content is less than 800 ppm after being left for 12 hours at a temperature of 40° C. and relative humidity of 90%.
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公开(公告)号：US10815378B2
公开(公告)日：2020-10-27
申请号：US16127671
申请日：2018-09-11
发明人： Hyeon Jeong Kim , Sang Yoon Park , Tae Sug Jang , Jin Hyung Park
摘要： Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.
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