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公开(公告)号：US10858587B2
公开(公告)日：2020-12-08
申请号：US15787158
申请日：2017-10-18
申请人： MERCK PATENT GMBH
发明人： Michael Wittek , Dagmar Klass
IPC分类号： C09K19/30 , C09K19/12 , C07C331/28 , C09K19/04 , C09K19/18
摘要： Liquid-crystalline media containing one or more compounds of formulae I-1, I-2 and/or I-3 and one or more compounds of formulae II and/or III and components containing these media for high-frequency technology, in particular phase shifters and microwave array antennas.
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42.发明申请公开(公告)号：US20200369957A1
公开(公告)日：2020-11-26
申请号：US16636603
申请日：2018-08-03
发明人： Sazzadur Rahman Khan , Hiep Luu
摘要： Described herein are heterocyclic liquid crystal compositions that can allow for the adjustment of their refractive indices by the application of an electric field. In addition, selectively dimmable reverse-mode polymer dispersed liquid crystal (PDLC) elements and devices using these compositions are also described, which are transparent when no voltage is applied and opaque when a voltage is applied.
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公开(公告)号：US20200339884A1
公开(公告)日：2020-10-29
申请号：US16608577
申请日：2018-06-28
发明人： Wenyang Ma , Liwei Wang , Haibin Xu , Wenming Han , Wenqi Zhang
摘要： 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.
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44.发明申请公开(公告)号：US20200306715A1
公开(公告)日：2020-10-01
申请号：US16769759
申请日：2018-12-20
发明人： Rui Wang , Nicholas L. Abbott , Ang Li
摘要： Porous polymer microsphere having radial optical anisotropy and diverse swelling states when dispersed in different solvents, which have ability to well swell the porous microspheres. A method for preparing the porous polymer microspheres, including: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form a emulsion of liquid crystal droplets; polymerizing the at least one reactive liquid crystal to form intermediate microspheres; removing the at least one non-reactive liquid crystal compound to form the porous polymer microspheres; separating, washing and dispersing or drying the porous polymer microspheres. The polymer microspheres can be used as the stationary phase in chromatograph separation, improving separation efficiency and column packing efficiency.
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公开(公告)号：US20200303817A1
公开(公告)日：2020-09-24
申请号：US16494686
申请日：2018-03-16
发明人： MASANOBU MIZUSAKI , KIYOSHI MINOURA
摘要： A liquid crystal cell in which antenna units are arranged includes a TFT substrate, a slot substrate, and a liquid crystal layer. The TFT substrate includes a first dielectric substrate, TFTs supported by the first dielectric substrate and patch electrodes electrically connected to the TFTs, and a first alignment film covering a groove part between the adjacent patch electrodes. The slot substrate includes a second dielectric substrate, a slot electrode including slots and supported by the second dielectric substrate, and a second alignment film covering the slot electrode. The liquid crystal layer sandwiched between the TFT substrate and the slot substrate. The liquid crystal layer includes a liquid crystal material having a lower limit temperature of a nematic phase of the liquid crystal material of −32° C. or lower and an upper limit temperature of the nematic phase of the liquid crystal material of 110° C. or higher.
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公开(公告)号：US10782566B2
公开(公告)日：2020-09-22
申请号：US15501438
申请日：2015-06-30
发明人： Yoshimasa Furusato , Masayuki Saito
IPC分类号： G02F1/1333 , G02F1/1337 , C09K19/12 , C09K19/20 , C09K19/34 , C09K19/30 , C09K19/08 , C09K19/42 , G02F1/13 , C09K19/56 , G02F1/1362 , C09K19/04
摘要： The subject is to provide liquid crystal display device having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate.The liquid crystal display device having a liquid crystal alignment film formed on the opposing surfaces of a pair of substrates, and a liquid crystal composition therebetween, wherein the liquid crystal alignment film includes a polymer derived from a polyamic acid having a photodegradable group, and the liquid crystal composition includes at least one compound represented by formula (1) as a first component: R1 is alkyl having 1 to 12 carbons or the like; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 is a single bond or the like; X1 and X2 are hydrogen or fluorine; Y1 is fluorine or the like; and a is 1, 2, 3 or 4.
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公开(公告)号：US10774263B2
公开(公告)日：2020-09-15
申请号：US16142306
申请日：2018-09-26
申请人： MERCK PATENT GMBH
发明人： Atsutaka Manabe , Constanze Brocke , Herbert Plach
IPC分类号： G02F1/1333 , C09K19/34 , G02F1/137 , C09K19/30 , G02F1/1343 , C09K19/04 , C09K19/12
摘要： A liquid-crystalline medium, preferably having a nematic phase and exhibiting a dielectric anisotropy of 0.5 or more, which contains compounds of formula B and formula S in which denotes denotes the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, displays of this type which contain a liquid-crystalline medium of this type, and the use of the compounds of formula S for the improvement of the transmission and/or response times of a liquid-crystalline medium which contains one or more additional mesogenic compounds.
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48.发明授权公开(公告)号：US10759997B2
公开(公告)日：2020-09-01
申请号：US15972582
申请日：2018-05-07
发明人： Jinsong Meng , Zhiliang Shi , Lei Zhao , Ming Li , Wei Zhang , Xing Zhang , Guoliang Yun
IPC分类号： G02F1/1333 , C09K19/54 , C07C69/602 , C07C69/54 , C09K19/12 , C09K19/58 , C07C69/653 , C09K19/04 , C09K19/30
摘要： Disclosed is a polymerizable compound having a structural formula as represented by the following formula I: The polymerizable compound disclosed in the present invention has a plurality of ring systems, and the entire molecular structure thereof is curved and twisted. The present invention further discloses a liquid crystal medium comprising the polymerizable compound, the polymerizable compound provided by the present invention has an appropriate polymerization rate in the liquid crystal medium, and the liquid crystal medium can be well applied to a PS-(polymer stabilized)- or PSA-(polymer stabilized alignment)-type liquid crystal display device. Further disclosed is a liquid crystal display device prepared from the liquid crystal medium.
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公开(公告)号：US10759996B2
公开(公告)日：2020-09-01
申请号：US15771590
申请日：2016-10-07
申请人： MERCK PATENT GMBH
摘要： The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
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公开(公告)号：US20200270525A1
公开(公告)日：2020-08-27
申请号：US16654025
申请日：2019-10-16
发明人： Yuki KOBARI , Masayuki SAITO
摘要： A liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a wide temperature range of a liquid crystal phase, a small viscosity, a large optical anisotropy, a large positive or negative dielectric anisotropy, a large specific resistance, a high stability to light, a high stability to heat and a large elastic constant or that is suitably balanced between at least two of these characteristics. The means is use of a liquid crystal composition that includes a specific compound having a high maximum temperature or a small viscosity as a first component, and that may include a specific compound having a large positive dielectric anisotropy as a second component, or a specific compound having a large negative dielectric anisotropy as a third component or a specific compound having a polymerizable group as a first additive.
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