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: 11773327
    Abstract: 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: Grant
    Filed: March 27, 2020
    Date of Patent: October 3, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenyang Ma, Liwei Wang, Weigang Yan, Wenming Han, Haibin Xu
  • Patent number: 11629291
    Abstract: 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: Grant
    Filed: June 28, 2018
    Date of Patent: April 18, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
  • Patent number: 11466212
    Abstract: 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: Grant
    Filed: August 20, 2020
    Date of Patent: October 11, 2022
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Weigang Yan, Wenyang Ma, Wenming Han
  • Patent number: 11359140
    Abstract: 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: Grant
    Filed: May 21, 2020
    Date of Patent: June 14, 2022
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Liwei Wang, Weigang Yan
  • Patent number: 11248170
    Abstract: 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: Grant
    Filed: April 20, 2018
    Date of Patent: February 15, 2022
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Wenyang Ma, Shuang Xu, Haibin Xu
  • Patent number: 11193063
    Abstract: 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: Grant
    Filed: April 29, 2020
    Date of Patent: December 7, 2021
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Wenqi Zhang, Wenyang Ma, Zhaoyuan Chen
  • Patent number: 11155752
    Abstract: 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: Grant
    Filed: April 17, 2018
    Date of Patent: October 26, 2021
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Haibin Xu, Shuang Xu
  • Publication number: 20210222066
    Abstract: 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: Application
    Filed: December 11, 2018
    Publication date: July 22, 2021
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Haibin Xu, Wenqi Zhang, Di He
  • Patent number: 11053441
    Abstract: 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: Grant
    Filed: August 4, 2017
    Date of Patent: July 6, 2021
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Haibin Xu, Wenming Han
  • Publication number: 20210095209
    Abstract: 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: Application
    Filed: August 20, 2020
    Publication date: April 1, 2021
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Weigang Yan, Wenyang Ma, Wenming Han
  • Publication number: 20210095208
    Abstract: 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: Application
    Filed: August 20, 2020
    Publication date: April 1, 2021
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Weigang Yan, Wenyang Ma, Wenming Han
  • Patent number: 10920146
    Abstract: 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: Grant
    Filed: November 16, 2016
    Date of Patent: February 16, 2021
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Haibin Xu, Wenming Han, Shuang Xu, Panpan Wang, Li Wang
  • Publication number: 20200385635
    Abstract: 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: Application
    Filed: May 21, 2020
    Publication date: December 10, 2020
    Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Liwei Wang, Weigang Yan
  • Publication number: 20200339883
    Abstract: 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: Application
    Filed: April 20, 2018
    Publication date: October 29, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Wenyang Ma, Shuang Xu, Haibin Xu
  • Publication number: 20200339884
    Abstract: 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: Application
    Filed: June 28, 2018
    Publication date: October 29, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
  • Publication number: 20200332195
    Abstract: 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: Application
    Filed: March 27, 2020
    Publication date: October 22, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenyang Ma, Liwei Wang, Weigang Yan, Wenming Han, Haibin Xu
  • Publication number: 20200255738
    Abstract: 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: Application
    Filed: April 29, 2020
    Publication date: August 13, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Wenqi Zhang, Wenyang Ma, Zhaoyuan Chen
  • Patent number: 10723947
    Abstract: 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: Grant
    Filed: April 21, 2016
    Date of Patent: July 28, 2020
    Assignee: 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: 20200123443
    Abstract: 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: Application
    Filed: August 4, 2017
    Publication date: April 23, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Haibin Xu, Wenming Han
  • Publication number: 20200048554
    Abstract: 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: Application
    Filed: October 27, 2017
    Publication date: February 13, 2020
    Applicant: 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