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公开(公告)号：US11932799B2
公开(公告)日：2024-03-19
申请号：US17626182
申请日：2020-08-05
发明人： Hongwei Zhang , Hui Xu , Li Zhang , Ximei Shen , Jianhua Tang
IPC分类号： G02F1/1333 , C09K19/30 , C09K19/32 , C09K19/44 , C09K19/58 , C09K19/04 , C09K19/12 , C09K19/34 , G02F1/137
CPC分类号： 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
摘要： 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.
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公开(公告)号：US11643600B2
公开(公告)日：2023-05-09
申请号：US16756230
申请日：2018-11-20
发明人： Hongwei Zhang , Hui Xu , Fei Wang , Jiuzhi Xue
CPC分类号： C09K19/12 , C09K19/2007 , G02F1/13756 , G02F1/133742 , C09K2019/0448 , C09K2019/122 , C09K2019/123 , C09K2019/183 , C09K2019/2071 , C09K2019/3016 , C09K2323/00
摘要： 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
发明人： Mengchao Zhou , Fei Wang , Hongwei Zhang , Hui Xu , Dong Li
IPC分类号： G02F1/137 , G02F1/1333 , G02F1/1339 , G02F1/139 , G02F1/1343 , C09K19/30 , C09K19/58
摘要： 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.
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公开(公告)号：US20210198575A1
公开(公告)日：2021-07-01
申请号：US16756230
申请日：2018-11-20
发明人： Hongwei Zhang , Hui Xu , Fei Wang , Jiuzhi Xue
IPC分类号： C09K19/12 , G02F1/1337 , G02F1/137 , C09K19/20
摘要： 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.
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公开(公告)号：US20210311346A1
公开(公告)日：2021-10-07
申请号：US17272509
申请日：2019-09-11
发明人： Mengchao Zhou , Fei Wang , Hongwei Zhang , Hui Xu , Dong Li
IPC分类号： G02F1/137 , G02F1/1333 , G02F1/1339 , G02F1/139 , G02F1/1343 , C09K19/30 , C09K19/58
摘要： 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.
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