Patents by Inventor Yunxia Qiao
Yunxia Qiao 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).
-
Publication number: 20230167363Abstract: A liquid crystal composition containing a benzochromene compound and the use thereof in a liquid crystal display element or liquid crystal display. The liquid crystal composition comprises one or more compounds represented by Formula I and one or more compounds represented by Formula II. The liquid crystal composition has the characteristics of a small rotational viscosity, a large elastic constant, a high transmittance, a fast response speed, a strong resistance to ultraviolet light irradiation, and a high long-time light stability, and is particularly suitable for the field of TV display.Type: ApplicationFiled: November 17, 2022Publication date: June 1, 2023Inventors: Xiaolong WANG, Qing CUI, Yunxia QIAO, Yan WANG, Shuai ZHAO, Hao LIU
-
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
-
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
-
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
-
Patent number: 10954445Abstract: Disclosed is a liquid crystal composition comprising one or more compounds represented by formula I and/or formula II and one or more compounds represented by formula III: wherein the definition of each substituent is given. The composition involved in the present invention has a low viscosity ?1, a high clearing point Tni and a large optical anisotropy ?n, and can realize a rapid response of liquid crystal display.Type: GrantFiled: September 24, 2018Date of Patent: March 23, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Ke-Lun Shu, RuiXiang Liang, YanLi Dong, YunXia Qiao, Lei Zhao, HuBo Zhang
-
Patent number: 10877319Abstract: Disclosed is a liquid crystal display device comprising an array substrate and an opposite substrate arranged facing the array substrate, wherein the structure of said array substrate comprises elongated and evenly spaced slit electrodes and electrode gaps between the slit electrodes, and said opposite substrate comprises a bulk electrode; and further comprises a liquid crystal composition between said array substrate and the opposite substrate. The liquid crystal display device has a higher light transmittance, such that more backlight passes through the liquid crystal display device, resulting in the liquid crystal display device having a higher luminance.Type: GrantFiled: August 22, 2018Date of Patent: December 29, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Xuefeng Li, Kelun Shu, Kai Xu, Lihong Gui, Qian Zhang, Zhengqiang Li, Yunxia Qiao, Qing Cui, Wenxiao Xing
-
Patent number: 10698266Abstract: Disclosed is a liquid crystal display device comprising an array substrate and an opposite substrate arranged facing the array substrate, and further comprises a liquid crystal composition located between said array substrate and the opposite substrate, wherein said array substrate comprises elongated and evenly spaced slit electrodes and electrode gaps between the slit electrodes, with the slit electrodes and the electrode gaps said being located in the same layer structure; said array substrate comprises a bulk electrode below the slit electrodes; and said array substrate further comprises an insulating layer between the slit electrodes and the bulk electrode. The liquid crystal display device has a higher light transmittance, such that more backlight passes through the liquid crystal display device, resulting in the liquid crystal display device having a higher luminance.Type: GrantFiled: August 22, 2018Date of Patent: June 30, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Xuefeng Li, Kelun Shu, Kai Xu, Lihong Gui, Qian Zhang, Zhengqiang Li, Yunxia Qiao, Qing Cui
-
Publication number: 20190353962Abstract: Disclosed is a liquid crystal display device comprising an array substrate and an opposite substrate arranged facing the array substrate, and further comprises a liquid crystal composition located between said array substrate and the opposite substrate, wherein said array substrate comprises elongated and evenly spaced slit electrodes and electrode gaps between the slit electrodes, with the slit electrodes and the electrode gaps said being located in the same layer structure; said array substrate comprises a bulk electrode below the slit electrodes; and said array substrate further comprises an insulating layer between the slit electrodes and the bulk electrode. The liquid crystal display device has a higher light transmittance, such that more backlight passes through the liquid crystal display device, resulting in the liquid crystal display device having a higher luminance.Type: ApplicationFiled: August 22, 2018Publication date: November 21, 2019Applicant: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO ., LTD.Inventors: Xuefeng LI, Kelun SHU, Kai XU, Lihong GUI, Qian ZHANG, Zhengqiang LI, Yunxia QIAO, Qing CUI
-
Publication number: 20190353963Abstract: Disclosed is a liquid crystal display device comprising an array substrate and an opposite substrate arranged facing the array substrate, wherein the structure of said array substrate comprises elongated and evenly spaced slit electrodes and electrode gaps between the slit electrodes, and said opposite substrate comprises a bulk electrode; and further comprises a liquid crystal composition between said array substrate and the opposite substrate. The liquid crystal display device has a higher light transmittance, such that more backlight passes through the liquid crystal display device, resulting in the liquid crystal display device having a higher luminance.Type: ApplicationFiled: August 22, 2018Publication date: November 21, 2019Applicant: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Xuefeng LI, Kelun SHU, Kai XU, Lihong GUI, Qian ZHANG, Zhengqiang LI, Yunxia QIAO, Qing CUI, Wenxiao XING
-
Patent number: 10472570Abstract: Disclosed are a liquid crystal composition comprising a liquid of formula I and formula II-B, and a liquid crystal compound and a related liquid crystal display device wherein R0, R1, R2 and R3 each independently represent an alkyl group having a carbon atom number of 1-10, a fluoro-substituted alkyl group having a carbon atom number of 1-10, an alkoxy group having a carbon atom number of 1-10, a fluoro-substituted alkoxy group having a carbon atom number of 1-10, an alkenyl group having a carbon atom number of 2-10, a fluoro-substituted alkenyl group having a carbon atom number of 2-10, an alkenoxy group having a carbon atom number of 3-8 or a fluoro-substituted alkenoxy group having a carbon atom number of 3-8, and any one or more non-connected CH2 in R0, R1, R2 and R3 may be substituted with cyclopentyl, cyclobutyl, cyclopropyl or —O—; Y represents ethyl or ethenyl; each independently represent one of and any fluorobenzene; represents benzene or fluorobenzene; and m represents one of 1,Type: GrantFiled: October 10, 2017Date of Patent: November 12, 2019Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Kelun Shu, Guoliang Yun, Yunxia Qiao, Zhengqiang Li
-
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
-
Publication number: 20190100697Abstract: Disclosed is a liquid crystal composition comprising one or more compounds represented by formula I and/or formula II and one or more compounds represented by formula III: wherein the definition of each substituent is given. The composition involved in the present invention has a low viscosity ?1, a high clearing point Tni and a large optical anisotropy ?n, and can realize a rapid response of liquid crystal display.Type: ApplicationFiled: September 24, 2018Publication date: April 4, 2019Inventors: Ke-Lun Shu, RuiXiang Liang, YanLi Dong, YunXia Qiao, Lei Zhao, HuBo Zhang
-
Patent number: 10040998Abstract: Disclosed is a liquid crystal composition and use thereof. The liquid crystal composition comprises components a, b and c; wherein component a is selected from one of the compounds represented by formula I; component b is a liquid crystal composition having a dielectric anisotropy of greater than 3; and component c is a liquid crystal composition having a dielectric anisotropy of ?3 to 3. The liquid crystal composition has a high contrast ratio property, and has a low change rate at a low temperature, that is, the decrease of contrast ratio at a low temperature (such as ?20° C.) is smaller as compared to a normal temperature. The composition has suitable properties with regard to practical applications, including a broader nematic phase range, an appropriate dielectric anisotropy, optical anisotropy and operating voltage, an excellent response time, a high electrical resistivity and voltage holding ratio, a low rotary viscosity, etc.Type: GrantFiled: November 15, 2013Date of Patent: August 7, 2018Assignee: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.Inventors: Guoliang Yun, Yunxia Qiao, Ruimao Hua, Xing Zhang, Ming Li, Jin Wang, Yajie Duan, Hongmei Cui, Yamin Li, Jingyi Feng
-
Publication number: 20180119012Abstract: Disclosed are a liquid crystal composition comprising a liquid of formula I and formula II-B, and a liquid crystal compound and a related liquid crystal display device wherein R0, R1, R2 and R3 each independently represent an alkyl group having a carbon atom number of 1-10, a fluoro-substituted alkyl group having a carbon atom number of 1-10, an alkoxy group having a carbon atom number of 1-10, a fluoro-substituted alkoxy group having a carbon atom number of 1-10, an alkenyl group having a carbon atom number of 2-10, a fluoro-substituted alkenyl group having a carbon atom number of 2-10, an alkenoxy group having a carbon atom number of 3-8 or a fluoro-substituted alkenoxy group having a carbon atom number of 3-8, and any one or more non-connected CH2 in R0, R1, R2 and R3 may be substituted with cyclopentyl, cyclobutyl, cyclopropyl or —O—; Y represents ethyl or ethenyl; each independently represent one of and any fluorobenzene; represents benzene or fluorobenzene; and m represents one of 1, 2 aType: ApplicationFiled: October 10, 2017Publication date: May 3, 2018Inventors: Kelun SHU, Guoliang YUN, Yunxia Qiao QIAO, Zhengqiang LI
-
Publication number: 20160326435Abstract: Disclosed is a liquid crystal composition and use thereof. The liquid crystal composition comprises components a, b and c; wherein component a is selected from one of the compounds represented by formula I; component b is a liquid crystal composition having a dielectric anisotropy of greater than 3; and component c is a liquid crystal composition having a dielectric anisotropy of ?3 to 3. The liquid crystal composition has a high contrast ratio property, and has a low change rate at a low temperature, that is, the decrease of contrast ratio at a low temperature (such as ?20° C.) is smaller as compared to a normal temperature. The composition has suitable properties with regard to practical applications, including a broader nematic phase range, an appropriate dielectric anisotropy, optical anisotropy and operating voltage, an excellent response time, a high electrical resistivity and voltage holding ratio, a low rotary viscosity, etc.Type: ApplicationFiled: November 15, 2013Publication date: November 10, 2016Inventors: Guoliang Yun, Yunxia Qiao, Ruimao Hua, Xing Zhang, Ming Li, Jin Wang, Yajie Duan, Hongmei Cui, Yamin Li, Jingyi Feng
-
Patent number: 9481828Abstract: A liquid crystal compound containing cyclobutyl and a linking group difluoromethyleneoxy, and a preparation method and use thereof are disclosed. The compound is as shown in Formula I. The liquid crystal compound containing cyclobutyl as a terminal group and difluoromethyleneoxy (—CF2O—) as a linking group in the molecular structure of Formula I according to the present invention, has not only a high dielectric anisotropy, but also importantly an extremely fast response speed and a high clearing point, which are of great significance for the formulation of a liquid crystal mixture.Type: GrantFiled: November 26, 2013Date of Patent: November 1, 2016Assignee: Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.Inventors: Guoliang Yun, Ruimao Hua, Kui Wang, Wenhai Lv, Jian Wang, Yaohua Han, Yunxia Qiao
-
Publication number: 20150284632Abstract: A liquid crystal compound containing cyclobutyl and a linking group difluoromethyleneoxy, and a preparation method and use thereof are disclosed. The compound is as shown in Formula I. The liquid crystal compound containing cyclobutyl as a terminal group and difluoromethyleneoxy (—CF2O—) as a linking group in the molecular structure of Formula I according to the present invention, has not only a high dielectric anisotropy, but also importantly an extremely fast response speed and a high clearing point, which are of great significance for the formulation of a liquid crystal mixture.Type: ApplicationFiled: November 26, 2013Publication date: October 8, 2015Inventors: Guoliang Yun, Ruimao Hua, Kui Wang, Wenhai Lv, Jian Wang, Yaohua Han, Yunxia Qiao
-
Patent number: D918573Type: GrantFiled: August 20, 2020Date of Patent: May 11, 2021Assignee: Shenzhen Yuansule Technology Co., Ltd.Inventor: Yunxia Qiao