Patents Assigned to JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
  • 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: 20210017450
    Abstract: A liquid crystal composition includes at least one compound of general formula I, at least one compound of general formula II and at least one compound of general formula III. The liquid crystal composition has a higher optical anisotropy, the relatively large elastic constants K11 and K33 while maintaining a relatively high clearing point, an appropriate dielectric anisotropy and a better low-temperature intersolubility. A liquid crystal display device which includes the liquid crystal composition has advantages of a fast response, a high contrast and a wide temperature range, thereby having a good display effect and a large range of applicability.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 21, 2021
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Li Wang, Haibing Xu, Pengfei Li, Di He, Rui Jin
  • 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: 20200131440
    Abstract: The present invention provides a liquid crystal composition comprising: at least one compound of general Formula I; at least one compound of general Formula II; at least one compound of general Formula M and at least one compound of general Formula N. The present invention also provides a liquid crystal display device comprising the liquid crystal composition. The liquid crystal composition provided in the present invention has a higher optical anisotropy, a higher clearing point, a higher dielectric anisotropy, a high transmittance and a larger average elastic constant. When the liquid crystal composition is used in the IPS liquid crystal display device, the transmittance of the display device can be effectively improved, so that the display device has a good display performance while also having good energy-saving and environment-friendly characteristics.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 30, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Lifang Yao, Di He, Rui Jin
  • 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: 20200123442
    Abstract: A liquid crystal composition includes at least one compound of general formula I and at least one compound selected from a group consisting of the compounds of general formula II-1 and general formula II-2. The liquid crystal composition provided by the present invention has suitable optical anisotropy, high clearing point, high elastic constants K11 and K33, and relatively low dielectric anisotropy. When the liquid crystal composition is applied to a liquid crystal display device, the liquid crystal display device may have better weather resistance and higher contrast ratio.
    Type: Application
    Filed: June 28, 2018
    Publication date: April 23, 2020
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Beibei Zhu, Haibin Xu, Pengfei Li, Di He, Shuang Xu
  • 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
  • Patent number: 10508237
    Abstract: Provided is a liquid crystal composition, comprising: 1-30% of one or more compounds of general formula I; 1-50% of one or more compounds of general formula II; 1-20% of one or more compounds of general formula III; 20-70% of one or more compounds of general formula IV; and 1-30% of one or more compounds of general formula V. The liquid crystal composition has properties such as a large maximum absolute transmittance, a high voltage holding ratio, better anti-UV properties, and high temperature reliability, and has a suitable optical anisotropy, a suitable dielectric anisotropy, and a relatively high clearing point, and is environmentally friendly.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 17, 2019
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Wenquan Ding, Pengfei Li, Yunyun Liu, Di He, Lifang Yao, Heming Zhang
  • Publication number: 20190345386
    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: Application
    Filed: April 17, 2018
    Publication date: November 14, 2019
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenming Han, Haibin Xu, Shuang Xu
  • Patent number: 10457869
    Abstract: A liquid crystal composition comprises a compound of general formula I serving as a first component; a compound of general formula II-1 and/or general formula II-2 serving as a second component; a compound of general formula III serving as a third component; a compound of general formula IV serving as a fourth component; a compound of general formula V serving as a fifth component; and a compound of general formula VI serving as a sixth component. The liquid crystal composition has at least one characteristic among the characteristics of a large dielectric anisotropy, a large optical anisotropy, a high voltage holding ratio and a low threshold voltage and the like, and is suitable to be used in a liquid crystal display device. Additionally, a liquid crystal display device comprising the liquid crystal composition is also provided.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: October 29, 2019
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Huijuan Dai, Wenming Han, Wenquan Ding, Pengfei Li, Haibin Xu, Di He, Yunyun Liu, Lifang Yao, Wenyang Ma, Dingfu Ma, Heming Zhang
  • Patent number: 10451910
    Abstract: A liquid crystal display device, being widely used in the fields such as electronic tags, electronic papers, business cards and flexible display screens or the like, and a driving method for the liquid crystal display device. The liquid crystal display device has an upper substrate, a lower substrate and one or more layers of an encapsulated liquid crystal sandwiched between the upper substrate and the lower substrate. The layers of the encapsulated liquid crystal include two different liquid crystal microcapsules uniformly mixed. Combined with a driving method of a combination of high-low voltage and high-low temperature, a color display effect of high contrast and repeatable writing can be achieved.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: October 22, 2019
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Zhenting Zhou, Panpan Wang, Zhaoyuan Chen
  • Publication number: 20190270934
    Abstract: A liquid crystal composition having a negative dielectric anisotropy and a liquid crystal display device comprising the same. The liquid crystal composition comprises: a first component comprising one or more compounds of formula I; a second component comprising two or more than two compounds of formula II; and a third component comprising one or more compounds of formula III.
    Type: Application
    Filed: July 19, 2017
    Publication date: September 5, 2019
    Applicant: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Heming ZHANG, Wenquan DING, Pengfei LI, Wenming HAN, Haibin XU, Di HE
  • Patent number: 10385270
    Abstract: The present invention discloses a liquid crystal composition, comprising: at least a first compound selected from the group consisting of a compound of general Formula I-1, a compound of general Formula I-2, and a combination thereof, and at least a second compound selected from the group consisting of a compound of general Formula II-1, a compound of general Formula II-2, a compound of general Formula II-3, a compound of general Formula II-4 and a combination thereof. The liquid crystal composition provided in the present invention has the properties of appropriate optical and dielectric anisotropies, high clearing point, existence of a nematic phase over a wide range of temperature, low viscosity and good high-temperature stability. The liquid crystal composition is applicable to a liquid crystal display (LCD) device, to enable the LCD device to have such properties as short response time, excellent display effect at high temperature, and others.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 20, 2019
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenming Han, Haibin Xu, Dingfu Ma, Qi Liu
  • Patent number: 10005959
    Abstract: The present invention discloses a liquid crystal composition comprising: 15-35% by weight of a compound of general formula I; 3-20% by weight of a compound of general formula II; 5-30% by weight of a compound of general formula III; 1-20% by weight of a compound of general formula IV; 10-35% by weight of a compound of general formula V-1 and/or a compound of general formula V-2; and 1-25% by weight of a compound of general formula VI. The liquid crystal composition provided by the present invention has the characteristics of an appropriate optical anisotropy, an appropriate dielectric anisotropy, a higher clearing point, a better voltage holding ratio, and a good UV-resistant stability, etc., and can be applied to a liquid crystal display.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 26, 2018
    Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenming Han, Haibin Xu, Wenyang Ma