Patents Assigned to Smart Liquid Crystal Technologies Co., Ltd.
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Patent number: 11932799Abstract: 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.Type: GrantFiled: August 5, 2020Date of Patent: March 19, 2024Assignee: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei Zhang, Hui Xu, Li Zhang, Ximei Shen, Jianhua Tang
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Publication number: 20240067799Abstract: An esterification method for improving the dispersibility of a hydroxyl-containing nano-material is disclosed herein. The method comprises: S1, thoroughly stirring and uniformly mixing a hydroxyl-containing nano-material precursor and an organic solvent to obtain a mixture; S2, heating and fully pre-reacting the mixture in step S1; and S3, adding an acyl halide to the solution which is heated and fully pre-reacted in step S2, and then further reacting same to finally obtain a surface-modified hydroxyl-containing nano-material.Type: ApplicationFiled: October 28, 2021Publication date: February 29, 2024Applicant: SMART LIQUID CRYSTAL TECHNOLOGIES CO., LTD.Inventors: Jiabin WANG, Wei ZHU, Yichen ZHANG, Yao WANG, Jiayue NIU
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Publication number: 20230205030Abstract: 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.Type: ApplicationFiled: January 21, 2021Publication date: June 29, 2023Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei ZHANG, Wenqing SHEN, Jianhua TANG, Li ZHANG
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Patent number: 11643600Abstract: 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.Type: GrantFiled: November 20, 2018Date of Patent: May 9, 2023Assignee: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei Zhang, Hui Xu, Fei Wang, Jiuzhi Xue
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Publication number: 20220282159Abstract: Disclosed herein is a liquid crystal mixture applied in light 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 the liquid crystal mixture, wherein the liquid crystal mixture has higher stability of electrical performance and the light modulating device has improved optical performance.Type: ApplicationFiled: August 5, 2020Publication date: September 8, 2022Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei ZHANG, Hui XU, Li ZHANG, Ximei SHEN, Jianhua TANG
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Patent number: 11214737Abstract: Chiral polymer microspheres have a porous structure of a concentric multi-shell structure. Each layer of the multi-shell structure is optically and structurally anisotropic. The optical axes of adjacent layers have a sequential slight twist. All layers of the multi-shell structure generate a helix configuration and the chiral polymer microspheres are optically active. A method for preparing the chiral polymer microspheres, includes: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form liquid crystal droplets through an emulsification process; polymerizing the reactive liquid crystal to form intermediate microspheres; and removing the one non-reactive liquid crystal and the chiral additive to form the chiral polymer microspheres. The chiral polymer microspheres have a porous structure and a swelling ability, and can be used as the stationary phase in chiral chromatograph, improving separation efficiency.Type: GrantFiled: September 19, 2019Date of Patent: January 4, 2022Assignee: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Ang Li, Jiawei Lu, Nicholas L. Abbott
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Publication number: 20210311346Abstract: 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.Type: ApplicationFiled: September 11, 2019Publication date: October 7, 2021Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Mengchao Zhou, Fei Wang, Hongwei Zhang, Hui Xu, Dong Li
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Publication number: 20210309916Abstract: Chiral polymer microspheres have a porous structure of a concentric multi-shell structure. Each layer of the multi-shell structure is optically and structurally anisotropic. The optical axes of adjacent layers have a sequential slight twist. All layers of the multi-shell structure generate a helix configuration and the chiral polymer microspheres are optically active. A method for preparing the chiral polymer microspheres, includes: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form liquid crystal droplets through an emulsification process; polymerizing the reactive liquid crystal to form intermediate microspheres; and removing the one non-reactive liquid crystal and the chiral additive to form the chiral polymer microspheres. The chiral polymer microspheres have a porous structure and a swelling ability, and can be used as the stationary phase in chiral chromatograph, improving separation efficiency.Type: ApplicationFiled: September 19, 2019Publication date: October 7, 2021Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Ang Li, Jiawei Lu, Nicholas L. Abbott
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Patent number: 11137656Abstract: 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.Type: GrantFiled: September 11, 2019Date of Patent: October 5, 2021Assignee: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Mengchao Zhou, Fei Wang, Hongwei Zhang, Hui Xu, Dong Li
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Publication number: 20210198575Abstract: 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.Type: ApplicationFiled: November 20, 2018Publication date: July 1, 2021Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Hongwei Zhang, Hui Xu, Fei Wang, Jiuzhi Xue
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Publication number: 20200306715Abstract: Porous polymer microsphere having radial optical anisotropy and diverse swelling states when dispersed in different solvents, which have ability to well swell the porous microspheres. A method for preparing the porous polymer microspheres, including: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form a emulsion of liquid crystal droplets; polymerizing the at least one reactive liquid crystal to form intermediate microspheres; removing the at least one non-reactive liquid crystal compound to form the porous polymer microspheres; separating, washing and dispersing or drying the porous polymer microspheres. The polymer microspheres can be used as the stationary phase in chromatograph separation, improving separation efficiency and column packing efficiency.Type: ApplicationFiled: December 20, 2018Publication date: October 1, 2020Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Rui Wang, Nicholas L. Abbott, Ang Li
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Patent number: 10649264Abstract: A rearview mirror with a dimming function includes: a transparent cover substrate covering substantially the full screen of the rearview mirror, an absorptive polarization layer disposed below the transparent cover substrate with a substantially uniform size, where when non-polarized ambient light passes through the absorptive polarization layer, the layer absorbs light of a polarization parallel to its absorption axis while transmits light of a polarization perpendicular to its absorption axis, a liquid crystal light-controlling layer disposed below the absorptive polarization layer with a substantially uniform size, and a reflective polarization layer disposed below the liquid crystal light-controlling layer with a substantially uniform size, which reflects the light of a polarization parallel to its reflective axis while transmits the light of a polarization perpendicular to its reflective axis.Type: GrantFiled: January 11, 2018Date of Patent: May 12, 2020Assignee: SMART LIQUID CRYSTAL TECHNOLOGIES CO., LTD.Inventors: Jiuzhi Xue, Chenhui Wang
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Publication number: 20190351827Abstract: A rearview mirror with a dimming function includes: a transparent cover substrate covering substantially the full screen of the rearview mirror, an absorptive polarization layer disposed below the transparent cover substrate with a substantially uniform size, where when non-polarized ambient light passes through the absorptive polarization layer, the layer absorbs light of a polarization parallel to its absorption axis while transmits light of a polarization perpendicular to its absorption axis, a liquid crystal light-controlling layer disposed below the absorptive polarization layer with a substantially uniform size, and a reflective polarization layer disposed below the liquid crystal light-controlling layer with a substantially uniform size, which reflects the light of a polarization parallel to its reflective axis while transmits the light of a polarization perpendicular to its reflective axis.Type: ApplicationFiled: January 11, 2018Publication date: November 21, 2019Applicant: Smart Liquid Crystal Technologies Co., Ltd.Inventors: Jiuzhi Xue, Chenhui Wang