Patents by Inventor Mingxia Wang
Mingxia Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11980186Abstract: The present disclosure provides a preparation method of eucalyptol emulsion and application thereof in biopesticides, belonging to the field of emulsion preparation. The method for preparing the eucalyptol emulsion includes the steps of: (1) adding eucalyptol into a cyclodextrin solution to obtain a mixed solution; (2) evenly mixing an emulsifier and a co-emulsifier to obtain a mixed solution; (3) adding the solution obtained in step (2) and water into the solution obtained in step (1), emulsifying to obtain the eucalyptol emulsion. In steps (1), (2) and (3), the mass percents of substances from which the eucalyptol emulsion is prepared are as follows: 0.5%-1% of cyclodextrin, 2.5%-25% of the eucalyptol, 1.25%-15% of the emulsifier, 0.3%-3.75% of the co-emulsifier and 55.3%-95.5% of the water, and the sum thereof is 100%. The emulsion is extremely stable without stratification after being placed at 20° C., 40° C. and 60° C. for 30 days and also has a good insecticidal effect.Type: GrantFiled: January 17, 2023Date of Patent: May 14, 2024Assignee: JIANGNAN UNIVERSITYInventors: Zhaofeng Li, Caiming Li, Zhengbiao Gu, Haocun Kong, Mingxia Quan, Luxiao Wang
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Publication number: 20230336590Abstract: The present disclosure relates to a railway video resource interconnection and convergence system and a convergence method. The system includes: a security device and a railway video sharing cloud platform. The security device is configured to map, under the condition that a first resource network is physically isolated from other resource networks, an internet protocol address of the first resource network of video resources to an internet protocol address of a shared network; and the railway video sharing cloud platform is configured to acquire a stream of the video resources, and convert the stream of the video resources into a stream of a preset standard format. The present disclosure solves the problem of secure and effective integration of video resources of a professional video monitoring system in a railway and a comprehensive video monitoring system.Type: ApplicationFiled: September 30, 2021Publication date: October 19, 2023Inventors: Mingxia WANG, Lejun ZHANG, Jingfeng ZHANG, Tao ZHANG, Wenhao LIU, Haobo XING, Qiang ZHU
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Patent number: 11466214Abstract: A positive dielectric anisotropic liquid crystal composition includes one or more compounds of formula I and one or more compounds of formula II: wherein R1 represents cyclopropyl, cyclobutyl or cyclopentyl, R2, R3 and R4 are as defined in the specification, and a liquid crystal display device. The liquid crystal composition has positive dielectric properties, a high charge retention ratio, a low rotary viscosity, a fast response time, and especially a high transmittance, and is suitable for manufacturing a TFT-LCD with a high transmittance and a fast response.Type: GrantFiled: April 29, 2019Date of Patent: October 11, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Yapeng Huang, Yunxia Qiao, Gang Wen, Qing Cui, Guoliang Yun, Mingxia Wang, Sumin Kang
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Patent number: 11060030Abstract: A negative dielectric anisotropy liquid crystal composition having one or more A-R0—B compounds represented by formula I above as a first component, and one or more compounds represented by formula II above as a second component: The liquid crystal composition has a good stability against light and heat, a lower viscosity, a wider refractive index that may be achieved by adjusting the monomer ratio, and a higher clearing point (a very wide service temperature range). The liquid crystal composition has a higher light transmittance, thus allowing a display device to have a higher brightness or an energy saving effect.Type: GrantFiled: December 14, 2018Date of Patent: July 13, 2021Assignee: SHIJIAZHUANG CHENGZHIYONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ke-Lun Shu, Mingxia Wang, Huan Liu, Wenxiao Xing, Zhengqiang Li, Yiping Wang, Yongfeng Bao, Guoliang Yun
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Patent number: 11015122Abstract: The present invention provides a liquid crystal composition formed by combining a polymerizable compound represented by formula I with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode, and a liquid crystal display element or liquid crystal display comprising this liquid crystal composition; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component should have the lowest rotary viscosity and the best photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: GrantFiled: December 20, 2018Date of Patent: May 25, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Kui Wang, Mingxia Wang, Zhian Liang, Guoliang Yun, Ke-Lun Shu, Guofang Wang, Huifang Wang
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Patent number: 10858588Abstract: The present invention discloses a negative dielectric anisotropic liquid crystal composition, characterized in that the liquid crystal composition comprises one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III and one or more compounds represented by formula IV, In the liquid crystal molecules of the composition, the van der Waals force therebetween is used as a motive force, such that the liquid crystal molecules generate an attractive force at an appropriate distance and positional relationships, thereby enabling the liquid crystal molecules to have excellent regular alignment characteristics, which is favorable for the liquid crystal molecules to modulate the transmission and blocking of light in the liquid crystal display device.Type: GrantFiled: September 10, 2018Date of Patent: December 8, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Mingxia Wang, Xing Zhang, Huifang Wang, Guofang Wang, Jianming Cheng, Zhe Shao, Guoliang Yun
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Patent number: 10767113Abstract: Provided is a liquid crystal compound containing 2,3,4-trisubstituted benzene, a liquid crystal composition thereof, and a liquid crystal display element or a liquid crystal display comprising the liquid crystal compound or the liquid crystal composition, wherein the liquid crystal composition has a lower viscosity, can achieve a quick response, and further has a moderate dielectric anisotropy ??, a moderate optical anisotropy ?n, and high stability to heat and light. The liquid crystal display element or liquid crystal display comprising the liquid crystal composition has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good ultraviolet resistant property, a high charge retention rate, a low vapor pressure etc., and particularly, the liquid crystal compound or the liquid crystal composition has the advantage of a high light transmittance.Type: GrantFiled: September 25, 2017Date of Patent: September 8, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Guoliang Yun, Hongmei Cui, Mingxia Wang, Sumin Kang, Yongtao Zhang, Yong Chen
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Patent number: 10711194Abstract: The present invention provides a liquid crystal composition comprising one or more compounds of general formula I and one or more compounds of general formula II; the liquid crystal composition of the present invention can work at very high and very low temperatures, has a very short response time and a better reliability to light and heat, and particularly exhibits no image retention or a significantly reduced image retention after a long time operation.Type: GrantFiled: January 22, 2018Date of Patent: July 14, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Mingxia Wang, Sumin Kang, Guoliang Yun
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Patent number: 10655062Abstract: A liquid crystal composition having one or more compounds represented by formula I, one or more compounds represented by formula II and one or more compounds represented by formula III: The liquid crystal composition has a good stability against light and heat and a lower viscosity, and can achieve a wider refractive index and higher clearing point by the adjustment the ratio of the monomers. In particular, the liquid crystal composition has a higher light transmittance, allowing a display device to have a higher brightness or an energy saving effect.Type: GrantFiled: November 30, 2017Date of Patent: May 19, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTDInventors: Ke-Lun Shu, Mingxia Wang, Huan Liu, Wenxiao Xing, Zhengqiang Li, Yiping Wang, Yongfeng Bao, Guoliang Yun
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Publication number: 20190390113Abstract: Provided is a liquid crystal compound containing 2,3,4-trisubstituted benzene, a liquid crystal composition thereof, and a liquid crystal display element or a liquid crystal display comprising the liquid crystal compound or the liquid crystal composition, wherein the liquid crystal composition has a lower viscosity, can achieve a quick response, and further has a moderate dielectric anisotropy ??, a moderate optical anisotropy ?n, and high stability to heat and light. The liquid crystal display element or liquid crystal display comprising the liquid crystal composition has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good ultraviolet resistant property, a high charge retention rate, a low vapor pressure etc., and particularly, the liquid crystal compound or the liquid crystal composition has the advantage of a high light transmittance.Type: ApplicationFiled: September 25, 2017Publication date: December 26, 2019Inventors: Guoliang Yun, Hongmei CUI, Mingxia WANG, Sumin KANG, Yongtao ZHANG, Yong CHEN
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Publication number: 20190256775Abstract: The present invention relates to a liquid crystal composition, a liquid crystal display element, and a liquid crystal display.Type: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Inventors: Mingxia WANG, Hongmei CUI, Yiping WANG, Sumin KANG
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Publication number: 20190256776Abstract: The present invention relates to a positive dielectric anisotropic liquid crystal composition comprising one or more compounds of formula I and one or more compounds of formula II, and a liquid crystal display device. The liquid crystal composition disclosed by the present invention has the characteristics of positive dielectric properties, a high charge retention ratio, a low rotary viscosity, a fast response time, and especially a high transmittance, and is suitable for manufacturing a TFT-LCD with a high transmittance and a fast response.Type: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Inventors: Yapeng HUANG, Yunxia QIAO, Gang WEN, Qing CUI, Guoliang YUN, Mingxia WANG, Sumin KANG
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Publication number: 20190185752Abstract: The present invention provides a liquid crystal composition formed by combining a polymerizable compound represented by formula I with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode, and a liquid crystal display element or liquid crystal display comprising this liquid crystal composition; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component should have the lowest rotary viscosity and the best photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Kui WANG, Mingxia WANG, Zhian LIANG, Guoliang YUN, Ke-Lun SHU, Guofang WANG, Huifang WANG
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Publication number: 20190185753Abstract: A negative dielectric anisotropy liquid crystal composition having one or more A-R0—B compounds represented by formula I above as a first component, and one or more compounds represented by formula II above as a second component: The liquid crystal composition has a good stability against light and heat, a lower viscosity, a wider refractive index that may be achieved by adjusting the monomer ratio, and a higher clearing point (a very wide service temperature range). The liquid crystal composition has a higher light transmittance, thus allowing a display device to have a higher brightness or an energy saving effect.Type: ApplicationFiled: December 14, 2018Publication date: June 20, 2019Inventors: Ke-Lun SHU, Mingxia WANG, Huan LIU, Wenxiao XING, Zhengqiang LI, Yiping WANG, Yongfeng BAO, Guoliang YUN
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Publication number: 20190100696Abstract: A liquid crystal composition having one or more compounds represented by formula I, one or more compounds represented by formula II and one or more compounds represented by formula III: The liquid crystal composition has a good stability against light and heat and a lower viscosity, and can achieve a wider refractive index and higher clearing point by the adjustment the ratio of the monomers. In particular, the liquid crystal composition has a higher light transmittance, allowing a display device to have a higher brightness or an energy saving effect.Type: ApplicationFiled: November 30, 2017Publication date: April 4, 2019Inventors: Ke-Lun Shu, Mingxia Wang, Huan Liu, Wenxiao Xing, Zhengqiang Li, Yiping Wang, Yongfeng Bao, Guoliang Yun
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Publication number: 20190078021Abstract: The present invention discloses a negative dielectric anisotropic liquid crystal composition, characterized in that the liquid crystal composition comprises one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III and one or more compounds represented by formula IV, In the liquid crystal molecules of the composition, the van der Waals force therebetween is used as a motive force, such that the liquid crystal molecules generate an attractive force at an appropriate distance and positional relationships, thereby enabling the liquid crystal molecules to have excellent regular alignment characteristics, which is favorable for the liquid crystal molecules to modulate the transmission and blocking of light in the liquid crystal display device.Type: ApplicationFiled: September 10, 2018Publication date: March 14, 2019Inventors: MingXia WANG, Xing ZHANG, HuiFang WANG, GuoFang WANG, JianMing CHENG, Zhe SHAO, Guoliang YUN
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Publication number: 20180208845Abstract: The present invention provides a liquid crystal composition comprising one or more compounds of general formula I and one or more compounds of general formula II; the liquid crystal composition of the present invention can work at very high and very low temperatures, has a very short response time and a better reliability to light and heat, and particularly exhibits no image retention or a significantly reduced image retention after a long time operation.Type: ApplicationFiled: January 22, 2018Publication date: July 26, 2018Inventors: MINGXIA WANG, SUMIN KANG
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Publication number: 20180094191Abstract: Provided is a liquid crystal compound containing 2,3,4-trisubstituted benzene, a liquid crystal composition thereof, and a liquid crystal display element or a liquid crystal display comprising the liquid crystal compound or the liquid crystal composition, wherein the liquid crystal composition has a lower viscosity, can achieve a quick response, and further has a moderate dielectric anisotropy ??, a moderate optical anisotropy ?n, and high stability to heat and light. The liquid crystal display element or liquid crystal display comprising the liquid crystal composition has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good ultraviolet resistant property, a high charge retention rate, a low vapor pressure etc., and particularly, the liquid crystal compound or the liquid crystal composition has the advantage of a high light transmittance.Type: ApplicationFiled: September 25, 2017Publication date: April 5, 2018Inventors: Guoliang Yun, Hongmei CUI, Mingxia WANG, Sumin KANG, Yongtao ZHANG, Yong CHEN
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Patent number: 9803140Abstract: The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity ?1, can achieve a quick response, and further has an appropriate dielectric anisotropy ??, an appropriate optical anisotropy ?n, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.Type: GrantFiled: May 20, 2016Date of Patent: October 31, 2017Assignee: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.Inventors: Guoliang Yuan, Lei Zhao, Kui Wang, Mingxia Wang, Ruimao Hua, Jinsong Meng
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Publication number: 20170101581Abstract: The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity ?1, can achieve a quick response, and further has an appropriate dielectric anisotropy ??, an appropriate optical anisotropy ?n, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.Type: ApplicationFiled: May 20, 2016Publication date: April 13, 2017Inventors: Guoliang Yuan, Lei Zhao, Kui Wang, Mingxia Wang, Ruimao Hua, Jinsong Meng