公开(公告)号：US20230384638A1

公开(公告)日：2023-11-30

申请号：US18031773

申请日：2021-10-28

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/1339 ,  G02F1/1333 ,  G02F1/137 ,  B60J3/04

CPC分类号： G02F1/1339 ,  G02F1/133302 ,  G02F1/137 ,  B60J3/04 ,  G02F2202/28 ,  G02F2202/043

摘要： An optical device is disclosed herein. In some embodiments, an optical device includes a first outer substrate, a second outer substrate, a liquid crystal element positioned between the first outer substrate and the second outer substrate, a first intermediate layer between the first outer substrate and the liquid crystal element, and a second intermediate layer between the second outer substrate and the liquid crystal element, wherein a sum of total thicknesses of the first and second intermediate layers is 800 μm or more, and wherein the liquid crystal element includes a first base layer, a second base layer, a liquid crystal layer between the first base layer and the second base layer, a pressure-sensitive adhesive layer between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first and second base layers.

公开(公告)号：US20230258992A1

公开(公告)日：2023-08-17

申请号：US18010558

申请日：2021-07-29

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/137 ,  G02F1/1337 ,  G02F1/1335

CPC分类号： G02F1/137 ,  G02F1/1337 ,  G02F1/133528 ,  G02F2202/28 ,  G02F2203/01

摘要： A light modulating device is disclosed herein. In some embodiments, a light modulating device includes a first substrate, a second substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the first and second substrates, and wherein the light modulating device satisfies Equation 1: T2≤3×T1, wherein, T1 is an initial transmittance measured after vertically orienting the liquid crystal layer and placing it between orthogonal polarizers, and T2 is a transmittance measured after heating the liquid crystal layer showing the transmittance of T1 at 100° C. for 5 minutes, and then placing it between the orthogonal polarizers. The light modulating device can stably maintain designed optical properties even after an encapsulation process. The light modulating device can also stably maintain the orientation state of a light modulation layer while effectively securing adhesive force between upper and lower substrates.

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.

公开(公告)号：US20200233252A1

公开(公告)日：2020-07-23

申请号：US16751778

申请日：2020-01-24

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/1339 ,  G02F1/1333 ,  G02F1/1335

摘要： A substrate having a spacer thereon and an optical device including the same are disclosed herein. In some embodiments, a substrate includes a base layer, a transparent column spacer formed on the base layer, and a black layer present between the transparent column spacer and the base layer. In some embodiments, an alignment film is present on the spacer.

公开(公告)号：US20200225393A1

公开(公告)日：2020-07-16

申请号：US16471329

申请日：2017-12-22

申请人： LG Chem, Ltd.

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

IPC分类号： G02B5/30 ,  G02B5/22 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/137

摘要： A reflectance-variable mirror using a liquid crystal cell is disclosed herein. In an embodiment, the reflectance-variable mirror may comprise a first liquid crystal cell including a guest host liquid crystal layer, a first reflective polarizing film, a second liquid crystal cell including a retardation-variable liquid crystal layer, a second reflective polarizing film and an absorbing plate sequentially. The reflectance-variable mirror can realize excellent reflectance-variable characteristics by lowering the reflectance in an antireflection mode.

公开(公告)号：US20200159061A1

公开(公告)日：2020-05-21

申请号：US16608007

申请日：2018-04-30

申请人： LG Chem, Ltd.

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

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

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, a reflective layer, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state different from the first orientation state upon application of a voltage, each of the polymer film substrates has an 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.

公开(公告)号：US20200159058A1

公开(公告)日：2020-05-21

申请号：US16751866

申请日：2020-01-24

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/1339

摘要： A substrate having a spacer formed thereon, a method of making the same, and an optical device including the same are disclosed herein. In one embodiment, a substrate includes a base layer, and a black column spacer formed on the base layer, wherein the black column spacer has an optical density in a range of 1.1 to 4, and wherein the black column spacer having a curved portion, wherein a cross section of the curved portion having at least one region having curvature.

公开(公告)号：US20180246361A1

公开(公告)日：2018-08-30

申请号：US15754023

申请日：2016-09-08

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/1339 ,  G02F1/1343 ,  G02F1/1333

摘要： The present application relates to a method of manufacturing an optical device, an optical device and a use of the optical device. The method of manufacturing an optical device of the present application can form a patterned mold layer to maintain an appropriate gap between the upper and lower substrates, and can apply an imprinting process in patterning the mold layer to simply manufacture the mold pattern having the desired shape. In addition, the optical device manufactured by the above manufacturing method can have a low driving voltage and no short circuit phenomenon, and be realized as a flexible device. Such an optical device can be applied to various display devices such as LCDs.