公开(公告)号：US11932799B2

公开(公告)日：2024-03-19

申请号：US17626182

申请日：2020-08-05

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Hongwei Zhang ,  Hui Xu ,  Li Zhang ,  Ximei Shen ,  Jianhua Tang

IPC: G02F1/1333 ,  C09K19/30 ,  C09K19/32 ,  C09K19/44 ,  C09K19/58 ,  C09K19/04 ,  C09K19/12 ,  C09K19/34 ,  G02F1/137

CPC classification number: C09K19/44 ,  C09K19/3003 ,  C09K19/322 ,  C09K19/586 ,  C09K2019/0459 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/323 ,  C09K2019/3422 ,  G02F1/13718

Abstract: Disclosed herein is a liquid crystal mixture applied in light modulating devices, comprising: component A comprised of one or more compounds selected from the group of compounds of formula (I), component B comprised of one or more compounds selected from the group of compounds of formula (II), and component C comprised of one or more chiral compounds. Also disclosed is a light modulating device containing the liquid crystal mixture, wherein the liquid crystal mixture has higher stability of electrical performance and the light modulating device has improved optical performance.

公开(公告)号：US11643600B2

公开(公告)日：2023-05-09

申请号：US16756230

申请日：2018-11-20

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Hongwei Zhang ,  Hui Xu ,  Fei Wang ,  Jiuzhi Xue

IPC: C09K19/12 ,  G02F1/1337 ,  G02F1/137 ,  C09K19/20 ,  C09K19/04 ,  C09K19/18 ,  C09K19/30

CPC classification number: C09K19/12 ,  C09K19/2007 ,  G02F1/13756 ,  G02F1/133742 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/183 ,  C09K2019/2071 ,  C09K2019/3016 ,  C09K2323/00

Abstract: A liquid crystal mixture applied in light modulating devices includes at least one compound selected from the group of compounds of formula I, at least one compound selected from the group of compounds of formula II and/or formula III, and at least one chiral compound. A light modulating device includes the liquid crystal mixture, where the light modulating device has reduced haze in the transparent state while increased opacity in the light scattering state.

R1-MG1-X-MG2-R2  I

公开(公告)号：US11137656B1

公开(公告)日：2021-10-05

申请号：US17272509

申请日：2019-09-11

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Mengchao Zhou ,  Fei Wang ,  Hongwei Zhang ,  Hui Xu ,  Dong Li

IPC: G02F1/137 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/139 ,  G02F1/1343 ,  C09K19/30 ,  C09K19/58

Abstract: A flexible bistable light modulating device includes a first flexible transparent conductive film and a second flexible transparent conductive film; and a liquid crystal layer disposed between the first flexible transparent conductive film and the second flexible transparent conductive film. The liquid crystal layer includes a liquid crystal mixture and a sealing structure to seal the liquid crystal mixture within the liquid crystal layer. The liquid crystal mixture includes at least one bimesogenic compound, at least one nematic liquid crystal compound and at least one chiral compound; and a plurality of supporting structures dispersing inside the liquid crystal layer. The weight percentage of the supporting structures over the liquid crystal mixture is 0.1%-4.5%. The flexible bistable light modulating device has two states that are stable without application of an external electric field, thus saving energy, simplifying the production process, saving cost and improving product yield.

公开(公告)号：US12197095B2

公开(公告)日：2025-01-14

申请号：US17927953

申请日：2021-01-21

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Hongwei Zhang ,  Wenqing Shen ,  Jianhua Tang ,  Li Zhang

IPC: G02F1/1333 ,  C09K19/14 ,  C09K19/20 ,  C09K19/54 ,  C09K19/60 ,  G02F1/137

Abstract: A liquid crystal composition includes a component A composed of one or more liquid crystals with negative dielectric anisotropy and a component B composed of one or more compounds selected from a general formula I, where the optical anisotropy of the liquid crystal composition is larger than 0.14. The elastic coefficient of a liquid crystal system is adjusted by introducing a bi-mesogenic compound into a negative liquid crystal or a negative liquid crystal mixture. When the liquid crystal composition is used for the dimming device, the minimum light transmittance of the dimming device in the dark state can be significantly reduced, the adjustment range of the light transmittance in the light state and the dark state can be expanded, and the haze in the dark state can be increased, thereby broadening the use range. R1-MG1-X-MG2-R2  I

公开(公告)号：US20210198575A1

公开(公告)日：2021-07-01

申请号：US16756230

申请日：2018-11-20

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Hongwei Zhang ,  Hui Xu ,  Fei Wang ,  Jiuzhi Xue

IPC: C09K19/12 ,  G02F1/1337 ,  G02F1/137 ,  C09K19/20

Abstract: A liquid crystal mixture applied in light modulating devices includes at least one compound selected from the group of compounds of formula I, at least one compound selected from the group of compounds of formula II and/or formula III, and at least one chiral compound. A light modulating device includes the liquid crystal mixture, where the light modulating device has reduced haze in the transparent state while increased opacity in the light scattering state.

公开(公告)号：US20210311346A1

公开(公告)日：2021-10-07

申请号：US17272509

申请日：2019-09-11

Applicant: Smart Liquid Crystal Technologies Co., Ltd.

Inventor： Mengchao Zhou ,  Fei Wang ,  Hongwei Zhang ,  Hui Xu ,  Dong Li

IPC: G02F1/137 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/139 ,  G02F1/1343 ,  C09K19/30 ,  C09K19/58

Abstract: A flexible bistable light modulating device includes a first flexible transparent conductive film and a second flexible transparent conductive film; and a liquid crystal layer disposed between the first flexible transparent conductive film and the second flexible transparent conductive film. The liquid crystal layer includes a liquid crystal mixture and a sealing structure to seal the liquid crystal mixture within the liquid crystal layer. The liquid crystal mixture includes at least one bimesogenic compound, at least one nematic liquid crystal compound and at least one chiral compound; and a plurality of supporting structures dispersing inside the liquid crystal layer. The weight percentage of the supporting structures over the liquid crystal mixture is 0.1%-4.5%. The flexible bistable light modulating device has two states that are stable without application of an external electric field, thus saving energy, simplifying the production process, saving cost and improving product yield.