Patents by Inventor Wenming Han
Wenming Han 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).
-
Patent number: 11773327Abstract: A PSA-type liquid crystal composition includes a host liquid crystal A and a polymerizable component B, where the host liquid crystal A includes one or more liquid crystal compounds, and the polymerizable component B includes at least one compound selected from compounds of general formula I-1, general formula I-2 and general formula I-3. A liquid crystal display device includes the PSA-type liquid crystal composition above. The PSA-type liquid crystal composition has better intersolubility, cannot be crystallized at a low-temperature environment, can form a relatively stable pretilt angle after the polymerization of the polymerizable component, avoids the image sticking, and inhibits the occurrence of a display defect, such as Zara Particle, during the polymerization.Type: GrantFiled: March 27, 2020Date of Patent: October 3, 2023Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Weigang Yan, Wenming Han, Haibin Xu
-
Patent number: 11629291Abstract: A liquid crystal composition contains: at least one compound of general formula I and at least one polymerizable compound of general formula II. Such a liquid crystal composition has a suitable optical anisotropy, a suitable dielectric anisotropy, and a better pretilt angle consistency while maintaining a relatively high clearing point, and the drop mura is good. When the liquid crystal composition is applied to a PSA liquid crystal display, the liquid crystal composition has an excellent display effect.Type: GrantFiled: June 28, 2018Date of Patent: April 18, 2023Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
-
Patent number: 11466212Abstract: A liquid crystal composition includes one or more compounds of general Formula I in an amount of 1%-30% by weight of the total weight of the liquid crystal composition, one or more compounds of general Formula II in an amount of 5%-35% by weight of the total weight of the liquid crystal composition, and one or more compounds of general Formula III in an amount of 1%-35% by weight of the total weight of the liquid crystal composition. The liquid crystal composition has an appropriate clearing point, an appropriate optical anisotropy, an appropriate dielectric anisotropy, as well as a higher voltage holding ratio, a higher transmittance, a good high-temperature resistant performance and a faster response speed, thus being suitable for display modes, such as VA, IPS and FFS. A photoelectric display device includes the liquid crystal composition.Type: GrantFiled: August 20, 2020Date of Patent: October 11, 2022Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Weigang Yan, Wenyang Ma, Wenming Han
-
Patent number: 11359140Abstract: Disclosed are a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound of general formula I, at least one compound of general formula II, at least one compound of general formula III, and at least one compound of general formula IV. By compounding the four compounds, the composition can have advantages of a wide temperature range of nematic phase, a low viscosity and a low threshold voltage, and the liquid crystal display element can have a short response time and great power saving performance.Type: GrantFiled: May 21, 2020Date of Patent: June 14, 2022Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Liwei Wang, Weigang Yan
-
Patent number: 11248170Abstract: The present invention provides a polymerizable compound with a structure of general formula I, which exhibits none or few of the problems existing in the prior art. A polymerizable liquid crystal composition comprising the polymerizable compound has good stability and higher reliability, and is embodied by having a smaller pretilt angle change and higher voltage holding ratio. Also, there is little or no image sticking effect in a liquid crystal display device comprising the polymerizable liquid crystal composition. The present invention also provides a method of synthesizing a polymerizable compound with a structure of general formula I. The present invention further provides a polymerizable liquid crystal composition comprising the polymerizable compound and a liquid crystal display device comprising the polymerizable liquid crystal composition.Type: GrantFiled: April 20, 2018Date of Patent: February 15, 2022Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Wenyang Ma, Shuang Xu, Haibin Xu
-
Patent number: 11193063Abstract: A compound having the structure of general formula I is useful as a liquid crystal composition and as a photoelectric display device including the liquid crystal composition. The compound having the structure of general formula I is chemically and physically stable, and has higher clearing point, and both large dielectric anisotropy and large optical anisotropy at the same time. The compound having the structure of general formula I is well compatible with other liquid crystal compounds when applied in a liquid crystal composition, the composition has good stability especially in a low-temperature environment, the characteristic of fast response and a wide range of applicabilities, especially applicable to the IPS-type and TN-TFT-type liquid crystal display devices.Type: GrantFiled: April 29, 2020Date of Patent: December 7, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Wenqi Zhang, Wenyang Ma, Zhaoyuan Chen
-
Patent number: 11155752Abstract: The present invention discloses a liquid crystal composition comprising at least one compound of general formula I and a display device thereof. The present invention also discloses a liquid crystal display device comprising the liquid crystal composition of the present invention. The liquid crystal composition provided by the present invention has characteristics, such as a high absolute value of negative dielectric anisotropy, a high optical anisotropy, a superior low-temperature stability, a fast response speed and so forth. The liquid crystal display device comprising the liquid crystal composition of the present invention can satisfy the demand for low driving voltage and fast response.Type: GrantFiled: April 17, 2018Date of Patent: October 26, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Haibin Xu, Shuang Xu
-
Publication number: 20210222066Abstract: A liquid crystal composition includes the compound of general formula I, and a photoelectric display device also includes the liquid crystal composition of general formula I. The compound of general formula I enables the liquid crystal composition including the same to maintain larger dielectric anisotropy, have a desired level of optical anisotropy, higher photo-thermal stability and nematic phase stability, and have a wide range of applicabilities, especially applicable to the IPS-type and TN-TFT-type liquid crystal display devices.Type: ApplicationFiled: December 11, 2018Publication date: July 22, 2021Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Haibin Xu, Wenqi Zhang, Di He
-
Patent number: 11053441Abstract: A liquid crystal composition and the use thereof are provided. The liquid crystal composition comprises 15-30% by weight of three or more compounds of general formula I; the general formula I must comprises at least two compounds of general formula I-1; wherein, by weight of the total amount of the liquid crystal composition, the total amount of the compounds of general formula I-1 is no lower than 10%, and the content of each of the compounds of general formula I-1 is no higher than 8%. The liquid crystal composition has appropriately high optical anisotropy, higher dielectric anisotropy, lower threshold voltage, suitable elastic constant, suitable temperature range of nematic phase, good reliability and heat stability, and good low-temperature intersolubility.Type: GrantFiled: August 4, 2017Date of Patent: July 6, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Haibin Xu, Wenming Han
-
Publication number: 20210095209Abstract: A liquid crystal composition includes at least one compound of general Formula I in an amount of 1%-30% by weight of the total weight of the liquid crystal composition, at least one compound of general Formula II in an amount of 5%-35% by weight of the total weight of the liquid crystal composition, and at least one compound of general Formula III in an amount of 10%-50% by weight of the total weight of the liquid crystal composition. The liquid crystal composition has an appropriate clearing point, an appropriate optical anisotropy, an appropriate dielectric anisotropy, as well as a higher voltage holding ratio, a higher transmittance, a good high-temperature resistant performance and a faster response speed, thus being suitable for display modes, such as VA, IPS and FFS. A photoelectric display device includes the liquid crystal composition.Type: ApplicationFiled: August 20, 2020Publication date: April 1, 2021Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Weigang Yan, Wenyang Ma, Wenming Han
-
Publication number: 20210095208Abstract: A liquid crystal composition includes one or more compounds of general Formula I in an amount of 1%-30% by weight of the total weight of the liquid crystal composition, one or more compounds of general Formula II in an amount of 5%-35% by weight of the total weight of the liquid crystal composition, and one or more compounds of general Formula III in an amount of 1%-35% by weight of the total weight of the liquid crystal composition. The liquid crystal composition has an appropriate clearing point, an appropriate optical anisotropy, an appropriate dielectric anisotropy, as well as a higher voltage holding ratio, a higher transmittance, a good high-temperature resistant performance and a faster response speed, thus being suitable for display modes, such as VA, IPS and FFS. A photoelectric display device includes the liquid crystal composition.Type: ApplicationFiled: August 20, 2020Publication date: April 1, 2021Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Weigang Yan, Wenyang Ma, Wenming Han
-
Patent number: 10920146Abstract: Provided is a liquid crystal composition, which comprises a component prepared from one or more compounds selected from a general formula I; and a component prepared from one or more compounds selected from a general formula II. The liquid crystal composition has the characteristics of low viscosity, high reliability, appropriate optical anisotropy, and appropriate dielectric anisotropy, and is applicable to liquid crystal display devices.Type: GrantFiled: November 16, 2016Date of Patent: February 16, 2021Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Haibin Xu, Wenming Han, Shuang Xu, Panpan Wang, Li Wang
-
Publication number: 20200385635Abstract: Disclosed are a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound of general formula I, at least one compound of general formula II, at least one compound of general formula III, and at least one compound of general formula IV. By compounding the four compounds, the composition can have advantages of a wide temperature range of nematic phase, a low viscosity and a low threshold voltage, and the liquid crystal display element can have a short response time and great power saving performance.Type: ApplicationFiled: May 21, 2020Publication date: December 10, 2020Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Liwei Wang, Weigang Yan
-
Publication number: 20200339883Abstract: The present invention provides a polymerizable compound with a structure of general formula I, which exhibits none or few of the problems existing in the prior art. A polymerizable liquid crystal composition comprising the polymerizable compound has good stability and higher reliability, and is embodied by having a smaller pretilt angle change and higher voltage holding ratio. Also, there is little or no image sticking effect in a liquid crystal display device comprising the polymerizable liquid crystal composition. The present invention also provides a method of synthesizing a polymerizable compound with a structure of general formula I. The present invention further provides a polymerizable liquid crystal composition comprising the polymerizable compound and a liquid crystal display device comprising the polymerizable liquid crystal composition.Type: ApplicationFiled: April 20, 2018Publication date: October 29, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Wenyang Ma, Shuang Xu, Haibin Xu
-
Publication number: 20200339884Abstract: A liquid crystal composition contains: at least one compound of general formula I and at least one polymerizable compound of general formula II. Such a liquid crystal composition has a suitable optical anisotropy, a suitable dielectric anisotropy, and a better pretilt angle consistency while maintaining a relatively high clearing point, and the drop mura is good. When the liquid crystal composition is applied to a PSA liquid crystal display, the liquid crystal composition has an excellent display effect.Type: ApplicationFiled: June 28, 2018Publication date: October 29, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
-
Publication number: 20200332195Abstract: A PSA-type liquid crystal composition includes a host liquid crystal A and a polymerizable component B, where the host liquid crystal A includes one or more liquid crystal compounds, and the polymerizable component B includes at least one compound selected from compounds of general formula I-1, general formula I-2 and general formula I-3. A liquid crystal display device includes the PSA-type liquid crystal composition above. The PSA-type liquid crystal composition has better intersolubility, cannot be crystallized at a low-temperature environment, can form a relatively stable pretilt angle after the polymerization of the polymerizable component, avoids the image sticking, and inhibits the occurrence of a display defect, such as Zara Particle, during the polymerization.Type: ApplicationFiled: March 27, 2020Publication date: October 22, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Weigang Yan, Wenming Han, Haibin Xu
-
Publication number: 20200255738Abstract: A compound having the structure of general formula I is useful as a liquid crystal composition and as a photoelectric display device including the liquid crystal composition. The compound having the structure of general formula I is chemically and physically stable, and has higher clearing point, and both large dielectric anisotropy and large optical anisotropy at the same time. The compound having the structure of general formula I is well compatible with other liquid crystal compounds when applied in a liquid crystal composition, the composition has good stability especially in a low-temperature environment, the characteristic of fast response and a wide range of applicabilities, especially applicable to the IPS-type and TN-TFT-type liquid crystal display devices.Type: ApplicationFiled: April 29, 2020Publication date: August 13, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Wenqi Zhang, Wenyang Ma, Zhaoyuan Chen
-
Patent number: 10723947Abstract: Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly.Type: GrantFiled: April 21, 2016Date of Patent: July 28, 2020Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Yunyun Liu, Wenming Han, Wenquan Ding, Pengfei Li, Haibin Xu, Lifang Yao, Di He, Wenyang Ma, Heming Zhang, Junqiang Zhang
-
Publication number: 20200123443Abstract: A liquid crystal composition and the use thereof are provided. The liquid crystal composition comprises 15-30% by weight of three or more compounds of general formula I; the general formula I must comprises at least two compounds of general formula I-1; wherein, by weight of the total amount of the liquid crystal composition, the total amount of the compounds of general formula I-1 is no lower than 10%, and the content of each of the compounds of general formula I-1 is no higher than 8%. The liquid crystal composition has appropriately high optical anisotropy, higher dielectric anisotropy, lower threshold voltage, suitable elastic constant, suitable temperature range of nematic phase, good reliability and heat stability, and good low-temperature intersolubility.Type: ApplicationFiled: August 4, 2017Publication date: April 23, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Haibin Xu, Wenming Han
-
Publication number: 20200048554Abstract: The present invention provides a liquid crystal composition, comprising, 14-30% of one or more compounds of general Formula I, 8-30% of one or more compounds of general Formula II, 13-58% of one or more compounds of general Formula III, and 20-65% of one or more compounds of general Formula IV, on the basis of the total weight of the liquid crystal composition. The liquid crystal composition of the present invention has a higher retardation, a higher transmittance, a larger optical anisotropy, a proper clearing point, a lower rotational viscosity and a good low-temperature storage stability, and is applicable to liquid crystal display devices to meet the rapid response required by a liquid crystal display, and ensure good display of the liquid crystal display in a harsh environment.Type: ApplicationFiled: October 27, 2017Publication date: February 13, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Di He, Wenming Han, Wenquan Ding, Haibin Xu, Heming Zhang, Junqiang Zhang, Yafei Yang, Yunyun Liu, Li Wang, Liwei Wang