Patents Assigned to JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.
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Publication number: 20180142154Abstract: A liquid crystal composition having good photostability and thermostability. The liquid crystal composition comprises: 5-30% of one or more compounds of general formula I based on the total weight of the liquid crystal composition; 1-30% of one or more compounds of general formula II based on the total weight of the liquid crystal composition; 1-30% of one or more compounds of general formula III based on the total weight of the liquid crystal composition; 1-20% of one or more compounds of general formula IV-1 and/or general formula IV-2 based on the total weight of the liquid crystal composition; and 15-50% of one or more compounds of general formula V based on the total weight of the liquid crystal composition. A liquid crystal display element containing the liquid crystal composition is also provided.Type: ApplicationFiled: April 21, 2016Publication date: May 24, 2018Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Wenming HAN, Haibin XU, Wenquan DING, Wenyang MA, Zhaoyuan CHEN
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Publication number: 20180119011Abstract: 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: ApplicationFiled: April 21, 2016Publication date: May 3, 2018Applicant: 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
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Patent number: 9951276Abstract: The present invention discloses a liquid crystal composition and a display device containing the same. The liquid crystal composition comprises one or more compounds of general Formula I; one or more compounds of general Formula II; and one or more compounds of general Formula III. The liquid crystal composition provided in the present invention has the properties of large optical and dielectric anisotropies, high clearing point, fast response speed, high resistivity, and good high-temperature and UV stability, and is applicable to a liquid crystal display (LCD), and particularly an LCD display requiring fast response speed, such that a good display effect of images without ghosting can be achieved when the LCD display works in a harsh environment.Type: GrantFiled: October 12, 2015Date of Patent: April 24, 2018Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Panpan Wang, Wenming Han, Wenyang Ma, Wenqi Zhang
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Publication number: 20180105747Abstract: 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: ApplicationFiled: April 21, 2016Publication date: April 19, 2018Applicant: 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
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Publication number: 20170233651Abstract: 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 II3, 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: ApplicationFiled: September 8, 2015Publication date: August 17, 2017Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Wenming HAN, Haibin XU, Dingfu MA, Qi LIU
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Publication number: 20170233654Abstract: The present invention discloses a liquid crystal composition and a display device containing the same. The liquid crystal composition comprises one or more compounds of general Formula I; one or more compounds of general Formula II; and one or more compounds of general Formula III. The liquid crystal composition provided in the present invention has the properties of large optical and dielectric anisotropies, high clearing point, fast response speed, high resistivity, and good high-temperature and UV stability, and is applicable to a liquid crystal display (LCD), and particularly an LCD display requiring fast response speed, such that a good display effect of images without ghosting can be achieved when the LCD display works in a harsh environment.Type: ApplicationFiled: October 12, 2015Publication date: August 17, 2017Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Panpan WANG, Wenming HAN, Wenyang MA, Wenqi ZHANG
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Publication number: 20170210987Abstract: 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 foiiiiula 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: ApplicationFiled: August 12, 2015Publication date: July 27, 2017Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Wenming HAN, Haibin XU, Wenyang MA
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Patent number: 9475988Abstract: Provided are a stable alignment type liquid crystal composition and use thereof. The liquid crystal composition has negative dielectric anisotropy, better stability and a large absolute value of dielectric anisotropy. The liquid crystal composition comprises a compound of general formula (I) accounting for 10%-80% of the total weight of the liquid crystal composition, a compound of general formula (II) accounting for 0.0005%-0.5% of the total weight of the liquid crystal composition, a compound of general formula (IV) accounting for 15%-90% of the total weight of the liquid crystal composition, and a polymerizable compound accounting for 0.1%-5% of the total weight of the liquid crystal composition. The liquid crystal composition is less subject to interference of such factors as radicals, oxygen, heat or the like. Also provided is the use of the liquid crystal composition in a liquid crystal display device.Type: GrantFiled: January 26, 2014Date of Patent: October 25, 2016Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiaolong Song, Zhaoyuan Chen
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Patent number: 9382480Abstract: A dichromatic dye composition which has the characteristics of higher order parameter and good miscibility can be applied in a guest-host liquid crystal composition. The absorbance curve of a guest-host liquid crystal composition with the dichromatic dye composition within the range of 420-680 nm has the following characteristics: a. 2?(T1+T2)/?T?10; b. |T1?T2|?0.5; c. 0<?T?0.2, where T1 is a difference between a transmittance to light at 420 nm and a minimum transmittance, T2 is a difference between the transmittance at a wavelength of 680 nm and a minimum transmittance, and ?T is a difference between the maximum and minimum transmittances on the transmittance curve within the wavelength range of 420-680 nm. A liquid crystal element with the guest-host liquid crystal composition provides a high-contrast display. A liquid crystal display device has the guest-host liquid crystal composition with the dichromatic dye composition.Type: GrantFiled: May 31, 2013Date of Patent: July 5, 2016Assignee: Jiangsu Hecheng Display Technology Co. Ltd.Inventors: Haibin Xu, Yudong Tan, Zhaoyuan Chen, Feng Wu, Xiaofei She, Da Huang, Xiangfei Kong, Xiaolong Song, Shizhi You
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Patent number: 9273246Abstract: A triphenylene derivative of general formula (I) or general formula (II) which can be used as a component of liquid crystal medium and the use thereof are provided in the present invention. This compound can be used to form a negative discotic liquid crystal composition having a suitable temperature range of liquid crystal phase and a lower clearing point, which can be used in TFT liquid crystal display as an optical compensation film (cell) material.Type: GrantFiled: May 31, 2013Date of Patent: March 1, 2016Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Xianfei Kong, Ming Yan, Yudong Tan, Zhaoyuan Chen, Shizhi You
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Patent number: 9222023Abstract: A liquid crystal composition and a liquid crystal display wherein the liquid crystal composition includes: a compound of general formula (I) including 1%-50% of the total weight of the liquid crystal composition; a compound of general formula (II) including 1%-60% of the total weight of the liquid crystal composition; a compound of general formula (III) including 1%-60% of the total weight of the liquid crystal composition; and a compound of general formula (IV) including 0-50% of the total weight of the liquid crystal composition—wherein the liquid crystal composition has a suitably wider nematic phase scope, a suitable optical anisotropy, a favorable low-temperature storage stability a faster response speed, can be used for outdoor work, has a good image display effect, and substantially free of streaking phenomenon.Type: GrantFiled: April 10, 2013Date of Patent: December 29, 2015Assignee: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenming Han, Yudong Tan, Dingfu Ma, Biao Hu, Yiming Wang, Zhaoyuan Chen, Shizhi You
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Patent number: 9193909Abstract: A liquid crystal composition that is useful for an active matrix (AM) device has a nematic phase and positive dielectric anisotropy. An active matrix liquid crystal display device includes the liquid crystal composition. By the total weight of the liquid crystal composition, the liquid crystal composition comprises 8%-50% of a compound of the general formula (I), 10%-70% (by weight) of a compound of the general formula (II), and 5%-50% (by weight) of a compound of the general formula (III).Type: GrantFiled: July 31, 2012Date of Patent: November 24, 2015Assignee: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Feng Wu, Wenming Han, Hongwei Zhang, Yudong Tan, Canhui Jin, Xia Zhu
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Publication number: 20140191158Abstract: A liquid crystal composition that is useful for an active matrix (AM) device has a nematic phase and positive dielectric anisotropy. An active matrix liquid crystal display device includes the liquid crystal composition. By the total weight of the liquid crystal composition, the liquid crystal composition comprises 8%-50% of a compound of the general formula (I), 10%-70% (by weight) of a compound of the general formula (II), and 5%-50% (by weight) of a compound of the general formula (III).Type: ApplicationFiled: July 31, 2012Publication date: July 10, 2014Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.Inventors: Feng Wu, Wenming Han, Hongwei Zhang, Yudong Tan, Canhui Jin, XIA Zhu