Patents by Inventor Gang Wen
Gang Wen 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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Publication number: 20230167362Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a negative liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The present invention discloses a negative dielectric nematic liquid crystal composition, comprising a compound 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 relatively low rotational viscosity (?1), a high clearing point (Cp), a good solubility and a high stability to heat and light (VHR) on the basis of maintaining an appropriate optical anisotropy (?n), and can be used for developing a liquid crystal display element or liquid crystal display with a low cell thickness, a wide temperature for display, and a fast response.Type: ApplicationFiled: August 25, 2020Publication date: June 1, 2023Inventors: Wei ZHANG, Qing CUI, Gang WEN, Sumin KANG
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Patent number: 11555151Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I with a mass content of 1-10% as the first component, a compound represented by formula II with a mass content of 1-20% as the second component, more than two compounds represented by formula III as the third component, more than three compounds represented by formula IV as the fourth component, and one or more polymerizable compounds as the fifth component, the crystal composition has low rotational viscosity and low ?1/K33 on the basis of maintaining appropriate optical anisotropy. When applied to liquid crystal display elements or liquid crystal displays, the liquid crystal display has a fast response speed.Type: GrantFiled: April 3, 2020Date of Patent: January 17, 2023Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Xuanfei Sun, Sumin Kang, Gang Wen, Qing Cui, Hongru Gao, Jikai Li, YanLi Dong
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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: 11447702Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV and more than three compounds represented by formula V. The liquid crystal composition has low rotational viscosity ?1 and high stability to heat and light on the basis of maintaining appropriate optical anisotropy ?n, which can realize fast response of liquid crystal display.Type: GrantFiled: April 3, 2020Date of Patent: September 20, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ruixiang Liang, Sumin Kang, Gang Wen, Qing Cui, Hongru Gao, Yuanyuan Li, Jikai Li, YanLi Dong, Xinxia Wang
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Patent number: 11441072Abstract: A dielectric negative liquid crystal composition, a liquid crystal display element and a liquid crystal display containing the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure includes a compound represented by formula I, a compound represented by formula II, two or more compounds represented by formula III and one or more compounds represented by formula IV. The liquid crystal composition of the present invention has high dielectric anisotropy, high elastic constant K, low rotational viscosity, can be used to develop large dielectric, fast response liquid crystal display elements or liquid crystal displays.Type: GrantFiled: April 3, 2020Date of Patent: September 13, 2022Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Wei Zhang, Sumin Kang, Xiaolong Wang, YunXia Qiao, Qing Cui, Gang Wen
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Publication number: 20210355382Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV and more than three compounds represented by formula V. The liquid crystal composition has low rotational viscosity ?1 and high stability to heat and light on the basis of maintaining appropriate optical anisotropy ?n, which can realize fast response of liquid crystal display.Type: ApplicationFiled: April 3, 2020Publication date: November 18, 2021Inventors: Ruixiang LIANG, Sumin KANG, Gang WEN, Qing CUI, Hongru GAO, Yuanyuan LI, Jikai LI, YanLi DONG, Xinxia WANG
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Publication number: 20210301205Abstract: A dielectric negative liquid crystal composition, a liquid crystal display element and a liquid crystal display containing the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure includes a compound represented by formula I, a compound represented by formula II, two or more compounds represented by formula III and one or more compounds represented by formula IV. The liquid crystal composition of the present invention has high dielectric anisotropy, high elastic constant K, low rotational viscosity, can be used to develop large dielectric, fast response liquid crystal display elements or liquid crystal displays.Type: ApplicationFiled: April 3, 2020Publication date: September 30, 2021Inventors: Wei ZHANG, Sumin KANG, Xiaolong WANG, YunXia QIAO, Qing CUI, Gang WEN
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Patent number: 11130911Abstract: A compound represented by formula I, a negative liquid crystal composition comprising such a compound, and a liquid crystal display element or liquid crystal display comprising the compound or liquid crystal composition are provided. The compound represented by formula I contains two hydroxy groups. In an ODF process for a panel, due to an intermolecular force between the hydroxyl groups and the surface of the panel (a glass surface or an ITO electrode surface), the compound is spontaneously aligned, in a standing manner, on the panel glass or transparent ITO electrode substrate, causing liquid crystal molecules similar to the compound represented by formula ITO be vertically aligned, and UV light irradiation, a polymer layer with a rough surface is formed on the substrate by means of polymerization, and achieves the effects of PI insulation and vertical alignment of the liquid crystal molecules.Type: GrantFiled: April 29, 2019Date of Patent: September 28, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Guoliang Yun, Ming Li, Jinsong Meng, Zhian Liang, Gang Wen, Zhengqiang Li
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Publication number: 20210292650Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I with a mass content of 1-10% as the first component, a compound represented by formula II with a mass content of 1-20% as the second component, more than two compounds represented by formula III as the third component, more than three compounds represented by formula IV as the fourth component, and one or more polymerizable compounds as the fifth component, the crystal composition has low rotational viscosity and low ?1/K33 on the basis of maintaining appropriate optical anisotropy. When applied to liquid crystal display elements or liquid crystal displays, the liquid crystal display has a fast response speed.Type: ApplicationFiled: April 3, 2020Publication date: September 23, 2021Inventors: Xuanfei SUN, Sumin KANG, Gang WEN, Qing CUI, Hongru GAO, Jikai LI, YanLi DONG
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Patent number: 11098250Abstract: Disclosed are a liquid crystal composition, a liquid crystal display element, and a liquid crystal display, said liquid crystal composition comprising 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, The liquid crystal composition of the present invention has a good stability to light and heat and a lower viscosity, and can attain a wider refractive index and a high clearing point (a wide service temperature range), and in particular, the liquid crystal composition has a high light transmittance, thus allowing a display device to have a high brightness or an energy saving effect.Type: GrantFiled: January 3, 2019Date of Patent: August 24, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Yameng Zai, Kai Xu, Guanchao Zhang, Ke-Lun Shu, Guoliang Yun, Gang Wen, Xiaoming Xiong, Wei Wang
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Patent number: 11078421Abstract: Provided are a polymerizable composition of a polymerizable compound represented by formula I and a polymerizable compound represented by formula II, a liquid crystal composition formed by combining this polymerizable composition with a specific liquid crystal component, particularly a PSVA liquid crystal composition suitable for display or TV applications, and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable liquid crystal composition has a good solubility, and an adjustable rate of polymerization and morphology after polymerization; furthermore, a “material system” formed from the selected polymerizable component and liquid crystal component has a low rotary viscosity and good photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problems of the occurrence of afterimages in final displays, etc.Type: GrantFiled: April 3, 2019Date of Patent: August 3, 2021Assignee: SHIJIAZHUANG CHENGZHI YOUNGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ruixiang Liang, Wenxiao Xing, Gang Wen, Hongru Gao, Xuanfei Sun, Yapeng Huang, Xiaoming Xiong, Junhong Su
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Patent number: 11078420Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition comprising the polymerizable compound, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a lower rotary viscosity and better 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: August 3, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Jinsong Meng, Ming Li, Kui Wang, Xing Zhang, Guoliang Yun, Zhian Liang, Yiping Wang, Gang Wen
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Patent number: 10858591Abstract: A stabilizer represented by formula I, wherein M represents cyclopentyl, cyclobutyl or cyclopropyl; Z1 and Z2 each independently represent a single bond, —CH2—, —CH2CH2—, —O—, —CH2O—, —OCH2— or —COO—; represents one or two of and n represents 0, 1 or 2.Type: GrantFiled: May 3, 2017Date of Patent: December 8, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD.Inventors: Gang Wen, Jingsong Meng, Hongyong Shang, Limei Zhang, Guoliang Yun, Xing Zhang
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Patent number: 10519377Abstract: Disclosed are a liquid crystal composition and a display element or display using the liquid crystal composition, wherein the liquid crystal composition contains one or more compounds of general formulas I, II and III, The liquid crystal composition disclosed in the present invention has an excellent performance, an optical anisotropy in the range of 0.080 to 0.150, a low rotary viscosity, a fast response time, and good chemical, optical and thermal stabilities, and is very suitable for manufacturing liquid crystal display elements, particularly suitable for active matrix display elements, such as active matrix displays using a VA, FFS or IPS mode.Type: GrantFiled: September 7, 2018Date of Patent: December 31, 2019Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTDInventors: Wenxiao Xing, Lei Zhao, Guoliang Yun, Xing Zhang, Gang Wen, RuiXiang Liang, Yuanyuan Zhai, YanLi Dong
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Publication number: 20190345390Abstract: Disclosed are a liquid crystal composition, a liquid crystal display element, and a liquid crystal display, said liquid crystal composition comprising 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, The liquid crystal composition of the present invention has a good stability to light and heat and a lower viscosity, and can attain a wider refractive index and a high clearing point (a wide service temperature range), and in particular, the liquid crystal composition has a high light transmittance, thus allowing a display device to have a high brightness or an energy saving effect.Type: ApplicationFiled: January 3, 2019Publication date: November 14, 2019Inventors: Yameng ZAI, Kai XU, Guanchao ZHANG, Ke-Lun SHU, Guoliang YUN, Gang WEN, Xiaoming XIONG, Wei WANG
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Publication number: 20190316038Abstract: Provided are a polymerizable composition of a polymerizable compound represented by formula I and a polymerizable compound represented by formula II, a liquid crystal composition formed by combining this polymerizable composition with a specific liquid crystal component, particularly a PSVA liquid crystal composition suitable for display or TV applications, and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable liquid crystal composition has a good solubility, and an adjustable rate of polymerization and morphology after polymerization; furthermore, a “material system” formed from the selected polymerizable component and liquid crystal component has a low rotary viscosity and good photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problems of the occurrence of afterimages in final displays, etc.Type: ApplicationFiled: April 3, 2019Publication date: October 17, 2019Inventors: Ruixiang LIANG, Wenxiao XING, Gang WEN, Hongru GAO, Xuanfei SUN, Yapeng HUANG, Xiaoming XIONG, Junhong SU
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Publication number: 20190256772Abstract: The present invention provides a compound represented by formula I, which can achieve a self-alignment function. Furthermore, a negative liquid crystal composition comprising such a compound, and a liquid crystal display element or liquid crystal display comprising the compound or liquid crystal composition are provided. The compound represented by formula I contains two hydroxy groups. In an ODF process for a panel, due to an intermolecular force between the hydroxyl groups and the surface of the panel (a glass surface or an ITO electrode surface), the compound is spontaneously aligned, in a standing manner, on the panel glass or transparent ITO electrode substrate, causing liquid crystal molecules similar to the compound represented by formula Ito be vertically aligned, and UV light irradiation, a polymer layer with a rough surface is formed on the substrate by means of polymerization, and achieves the effects of PI insulation and vertical alignment of the liquid crystal molecules.Type: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Inventors: Guoliang YUN, Ming LI, Jinsong MENG, Zhian LIANG, Gang WEN, Zhengqiang LI
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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: 20190185751Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition comprising the polymerizable compound, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a lower rotary viscosity and better 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: Jinsong MENG, Ming LI, Kui WANG, Xing ZHANG, Guoliang YUN, Zhian LIANG, Yiping WANG, Gang WEN
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Publication number: 20180346017Abstract: A hydraulic system is provided for a steering system of a vehicle. The hydraulic system includes a pump that supplies pressurized fluid during an operation of the steering system. The hydraulic system also includes an accumulator that is in independent and selective communication with each of the pump and the steering system. When the pump is in the operational state to support the operation of the steering system, some of the fluid may be routed into the accumulator and stored in the accumulator for later use. In the event of failure of the pump when the steering system is in operation, the accumulator provides the required amount of fluid to continue operation of the steering system until charge in the accumulator depletes to a value that is no longer sufficient to support operation of the steering system.Type: ApplicationFiled: June 5, 2017Publication date: December 6, 2018Applicant: Caterpillar Inc.Inventors: Gang Wen, Travis Neale Richards, Matthew David Roley, Nathanael Garnet McRostie, Dwanz Mwalimu Mwasi