公开(公告)号：US11633903B2

公开(公告)日：2023-04-25

申请号：US17723557

申请日：2022-04-19

申请人： LG Chem, Ltd.

发明人： Cheol Ock Song ,  Seung Heon Lee ,  Ji Young Hwang ,  Han Min Seo ,  Nam Seok Bae ,  Jin Woo Park ,  Jung Sun You

IPC分类号： B29C59/02 ,  B29C59/04 ,  G02F1/1339 ,  G02F1/1347 ,  G02F1/1335 ,  G02F1/1362 ,  G03F1/58

摘要： A substrate and a method for producing the same are disclosed herein. In some embodiments, a substrate includes a base layer, a black layer formed on the base layer, and column spacers formed on the black layer, wherein a loss rate of spacers measured by a peel test is 15% or less. The substrate can have excellent adhesiveness of the spacer to the base layer or the black layer and ensuring appropriate darkening properties. The method can effectively produce such a substrate without adverse effects such as occurrence of foreign materials without separate treatment such as heat treatment.

公开(公告)号：US11624940B2

公开(公告)日：2023-04-11

申请号：US17434598

申请日：2020-03-03

申请人： LG Chem, Ltd.

发明人： Min Jun Gim ,  Eun Jung Lim ,  Jung Sun You ,  Jin Hong Kim ,  Hyun Jun Lee ,  Dong Hyun Oh

IPC分类号： G02F1/1339 ,  G02F1/01 ,  G02F1/1347 ,  G02F1/139

摘要： A light modulation element that can vary between a bright transparent mode and a dark scattering mode is provided. The light modulation element has a first light modulation layer and a second light modulation layer comprising nematic liquid crystals and a dichroic dye in a scattering mode when a voltage is applied. The first light modulation layer and the second light modulation layer are disposed to overlap each other. The light modulation element has an improved contrast ratio and haze-variable characteristics, without precipitation of dichroic dyes and an increase in power consumption.

公开(公告)号：US11347080B2

公开(公告)日：2022-05-31

申请号：US16500248

申请日：2018-04-30

申请人： LG Chem, Ltd.

发明人： Eun Jung Lim ,  Nam Hun Kim ,  Jung Sun You ,  Jin Hong Kim ,  Hyun Jun Lee ,  Min Jun Gim ,  Kyung Ki Hong ,  In Ju Mun ,  Dong Hyun Oh

IPC分类号： G02F1/1333 ,  G02F1/137 ,  G02C7/10 ,  G02F1/13363 ,  G02F1/139 ,  B32B7/035 ,  G02F1/01 ,  G02F1/1343 ,  G02F1/1347 ,  G02B27/01 ,  G02F1/13 ,  G02F1/1335

摘要： The present application relates to a light modulating device and an eyewear. The present application can provide a light modulation device having both excellent mechanical properties and optical properties by applying a polymer film that is also optically anisotropic and mechanically anisotropic to a substrate.

公开(公告)号：US11226519B2

公开(公告)日：2022-01-18

申请号：US15734347

申请日：2019-07-02

申请人： LG Chem, Ltd.

发明人： Jung Sun You ,  Dong Hyun Oh ,  Nam Gyu Kim ,  Eun Jung Lim

IPC分类号： G02F1/1339 ,  G02C7/08 ,  G02F1/137 ,  G02F1/1343

摘要： A light modulation element and the use thereof are provided. The light modulation element can suppress a surface waviness phenomenon upon surface reflection visual observation by improving surface waviness of a base film caused by a spacer. Such light modulation element can be applied to various flexible display devices to improve the quality of products.

公开(公告)号：US20190384094A1

公开(公告)日：2019-12-19

申请号：US16480497

申请日：2018-04-30

申请人： LG Chem, Ltd.

发明人： Hyun Jun Lee ,  Eun Jung Lim ,  Jung Sun You ,  Min Jun Gim ,  Dong Hyun Oh ,  Jin Hong Kim

IPC分类号： G02F1/1333 ,  G02F1/13 ,  G02B27/01

摘要： The present application relates to a light modulation device and a use thereof. The present application can provide a light modulation device having both excellent mechanical properties and optical properties by applying a polymer film that is also optically anisotropic and mechanically anisotropic to a substrate.

公开(公告)号：US10329485B2

公开(公告)日：2019-06-25

申请号：US14602056

申请日：2015-01-21

申请人： LG CHEM, LTD.

发明人： Sung Joon Min ,  Dong Hyun Oh ,  Jung Sun You ,  Jin Hong Kim

IPC分类号： C09K19/40 ,  C09K19/52 ,  C09K19/54 ,  G02F1/1334

摘要： A liquid crystal device, a precursor composition, a method of manufacturing a liquid crystal device, an apparatus of manufacturing a liquid crystal device, and use of the liquid crystal device are provided. A device capable of being driven at a low driving voltage can be provided. The device can be realized so that the device can be driven in a normally transparent mode or a normally black mode. Also, the device has other excellent characteristics such as a contrast ratio. Such a liquid crystal device can be applied to various light modulation devices such as smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.

公开(公告)号：US20180373068A1

公开(公告)日：2018-12-27

申请号：US15563053

申请日：2016-03-31

申请人： LG Chem, Ltd.

发明人： Eun Jung Lim ,  Sung Joon Min ,  Jung Sun You ,  Jung Woon Kim ,  Jin Hong Kim ,  Dong Hyun Oh

IPC分类号： G02F1/137 ,  G02F1/1334

CPC分类号： G02F1/137 ,  C09K19/00 ,  G02F1/1334 ,  G02F1/13725 ,  G02F1/13743 ,  G02F1/1375 ,  G02F2001/13345 ,  G02F2001/13756 ,  G02F2202/043 ,  G02F2202/06 ,  G02F2202/16 ,  G09G3/36

摘要： The present application relates to a liquid crystal device. The liquid crystal device of the present application may realize a transparent white state, a transparent black state and a scattering state according to a frequency and/or level of an applied voltage. The liquid crystal device may be applied to, for example, a window of a vehicle, a smart window, a window protective film, a display, a light cutoff panel for a display, an active retarder for a 3D image display or a viewing angle controlling film.

公开(公告)号：US20220390779A1

公开(公告)日：2022-12-08

申请号：US17770203

申请日：2020-11-04

申请人： LG Chem, Ltd.

发明人： Jung Sun You ,  Dong Hyun Oh ,  Cheol Min Yun ,  Jin Hong Kim ,  Jung Woon Kim ,  Min Jun Gim

IPC分类号： G02F1/1337 ,  G02F1/1339

摘要： A method for manufacturing a light modulation device is provided. The light modulation device is capable of removing defects such as orientation irregularities. The light modulation device further improves the orientation state in the light modulation device that adjusts orientation of a liquid crystal compound or the like with a liquid crystal alignment film and a pressure-sensitive adhesive layer or adhesive layer.

公开(公告)号：US20220234277A1

公开(公告)日：2022-07-28

申请号：US17723557

申请日：2022-04-19

申请人： LG Chem, Ltd.

发明人： Cheol Ock Song ,  Seung Heon Lee ,  Ji Young Hwang ,  Han Min Seo ,  Nam Seok Bae ,  Jin Woo Park ,  Jung Sun You

IPC分类号： B29C59/02 ,  B29C59/04 ,  G02F1/1339 ,  G02F1/1347 ,  G02F1/1335 ,  G02F1/1362 ,  G03F1/58

摘要： A substrate and a method for producing the same are disclosed herein. In some embodiments, a substrate includes a base layer, a black layer formed on the base layer, and column spacers formed on the black layer, wherein a loss rate of spacers measured by a peel test is 15% or less. The substrate can have excellent adhesiveness of the spacer to the base layer or the black layer and ensuring appropriate darkening properties. The method can effectively produce such a substrate without adverse effects such as occurrence of foreign materials without separate treatment such as heat treatment.

公开(公告)号：US11314106B2

公开(公告)日：2022-04-26

申请号：US16607520

申请日：2018-04-30

申请人： LG Chem, Ltd.

发明人： Min Jun Gim ,  Eun Jung Lim ,  Jung Sun You ,  Dong Hyun Oh ,  Hyun Jun Lee ,  Nam Hun Kim

IPC分类号： G02F1/1333 ,  G02C7/10 ,  G02F1/13363 ,  G02F1/137 ,  B32B7/035 ,  G02F1/01 ,  G02F1/1343 ,  G02F1/153 ,  G02F1/1347 ,  G02B27/01 ,  G02F1/13 ,  G02F1/1335

摘要： A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state when a voltage is applied, and a polarizer, wherein each of the first and second polymer film substrates have in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.