公开(公告)号：US12092907B2

公开(公告)日：2024-09-17

申请号：US18119416

申请日：2023-03-09

申请人： LG Chem, Ltd.

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

IPC分类号： G02C7/10 ,  G02F1/13363 ,  G02F1/1337

CPC分类号： G02C7/101 ,  G02F1/133636 ,  G02F1/133638 ,  G02F1/1337 ,  G02F2202/04

摘要： A transmittance-variable device is provided in the present application. The present application provides a transmittance-variable device, which can be applied to various applications without causing problems such as a crosstalk phenomenon, a rainbow phenomenon or a mirroring phenomenon, while having excellent transmittance-variable characteristics.

公开(公告)号：US11536987B2

公开(公告)日：2022-12-27

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： G02F1/1335 ,  G02C7/10 ,  G02F1/1333 ,  G02F1/13363 ,  G02F1/137 ,  G02F1/139 ,  B32B7/035 ,  G02F1/01 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/153 ,  G02B27/01 ,  G02F1/13

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：US20220350185A1

公开(公告)日：2022-11-03

申请号：US17640612

申请日：2020-10-08

申请人： LG Chem, Ltd.

发明人： Min Jun Gim ,  Jung Sun You ,  Cheol Ock Song ,  Dong Hyun Oh ,  Nam Gyu Kim ,  Jin Hong Kim ,  Jung Woon Kim

IPC分类号： G02F1/1339 ,  G02F1/1335

摘要： A light modulation device is disclosed herein. The light modulation device can properly maintain a cell gap by controlling the shape and arrangement of spacers and the like, and is applicable for various applications by effectively controlling omnidirectional light leakage in a black mode, while having excellent optical properties, including transmittance-variable characteristics and haze characteristics, and the like.

公开(公告)号：US20220299690A1

公开(公告)日：2022-09-22

申请号：US17636557

申请日：2020-10-22

申请人： LG Chem, Ltd.

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

IPC分类号： G02B5/30

摘要： A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate having a first surface and a second surface, an adhesive layer or pressure-sensitive adhesive layer disposed on the first surface of the first polymer film substrate, a second polymer film substrate having a first surface and a second surface, a liquid crystal alignment film disposed on the first surface of the second polymer film substrate, a −C plate; and a light modulation layer containing a liquid crystal compound. The light modulation device has excellent optical properties including transmittance-variable characteristics through characteristic control and proper arrangement of a compensation film, and being applicable to various uses by controlling inclination angle light leakage in a black mode.

公开(公告)号：US20200096807A1

公开(公告)日：2020-03-26

申请号：US16607623

申请日：2018-04-30

申请人： LG Chem, Ltd.

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

IPC分类号： G02F1/1333 ,  G02F1/13363 ,  G02F1/137

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 vertical orientation state and a twisting orientation state upon application of a voltage, each of the first and second 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：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：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：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.