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34results about How to "Large voltage holding ratio" patented technology
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Liquid crystal composition and liquid crystal display device
ActiveUS20110096285A1Short response timeSmall viscosityLiquid crystal compositionsThin material handlingCrystallographyDielectric anisotropy
The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition having a negative dielectric anisotropy that contains a specific compound having negatively large dielectric anisotropy as the first component, and has a specific two ring compound having a low viscosity as the second component, and provides a liquid crystal display device containing the composition.
Owner:JNC CORP +1
Compound having 2,2-difluorovinyloxy group or 1,2,2-trifluorovinyloxy group, liquid crystal composition and liquid crystal display device
ActiveUS20140034876A1Stable lightingSmall viscosityLiquid crystal compositionsOrganic chemistryCrystallographyDielectric anisotropy
To provide a liquid crystal compound having a high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent solubility in other liquid crystal compounds. The invention concerns a compound represented by formula (1), a liquid crystal composition containing the compound and a liquid crystal display device including the composition:
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20060210725A1High resistanceLarge voltage holding ratioLiquid crystal compositionsThin material handlingHalogenDielectric anisotropy
What are provided include a liquid crystal composition that satisfies many characteristics among the characteristics such as a wide temperature range of a nematic phase, a suitable optical anisotropy, a negatively large dielectric anisotropy, and a large specific resistance, a liquid crystal composition that satisfies the characteristics and simultaneously has a small optical anisotropy and a low minimum temperature of a nematic phase, and preferably approximately −20° C. or less, and a liquid crystal display device containing the composition. The liquid crystal composition has a negative dielectric anisotropy and contains a first component containing a liquid crystal compound containing, as one of the groups having a ring structure, a benzene ring having two hydrogens adjacent to each other replaced by fluorine and chlorine, and a second component containing a liquid crystal compound having a specific structure containing no halogen, and the liquid crystal display device contains the liquid crystal composition.
Owner:JNC CORP +1
Polymerizable compound, liquid crystal composition, and liquid crystal display device
ActiveUS20140346399A1Improve stabilityShort response timeLiquid crystal compositionsOrganic chemistryDielectric anisotropyUltraviolet lights
A liquid crystal composition and a liquid crystal display device which includes the composition are provided. The liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component. The liquid crystal composition satisfies at least one of the following characteristics: a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat. Alternatively, a liquid crystal composition having a suitable balance regarding at least two of the aforementioned characteristics is also provided.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal device
InactiveUS20080017836A1Large opticalShort response timeLiquid crystal compositionsLiquid organic insulatorsCrystallographyDielectric anisotropy
A liquid crystal composition having a negative dielectric anisotropy that includes two components, wherein the first component is a specific two-ring compound having phenylene, two hydrogens of which are replaced by fluorine, and the second component is a specific four-ring compound having phenylene, one hydrogen of which is replaced by fluorine, and a liquid crystal display device including the composition.
Owner:JNC CORP +1
Liquid crystal compound having vinyloxy, liquid crystal composition and liquid crystal display device
ActiveUS20140138582A1Increase heatSmall viscosityLiquid crystal compositionsOrganic chemistryCrystallographyDielectric anisotropy
A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1):wherein, for example, R1 is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; R2 is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 3 to 10 carbons; ring A1 is 1,4-cyclohexylene or 1,4-phenylene; ring A2 is 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Z1 and Z2 are single bonds; L1 and L2 are fluorine; and 1 is 0, 1 or 2.
Owner:JNC CORP +1
Liquid crystal display device
InactiveUS20120229751A1Short response timeSmall viscosityLiquid crystal compositionsNon-linear opticsDielectric anisotropyUltraviolet lights
The invention is to provide an AM device containing a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to and heat, or having a suitable balance regarding at least two of the characteristics, and the AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal display device contains a liquid crystal composition having a positive dielectric anisotropy and containing a specific compound having a large positive dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component.
Owner:JNC CORP +1
Compound, liquid crystal composition and liquid crystal display device
InactiveUS20120313043A1Easy to useSmall viscosityLiquid crystal compositionsOrganic chemistryDielectric anisotropyUltraviolet lights
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20130001469A1Short response timeSmall viscosityLiquid crystal compositionsThin material handlingCrystallographyDielectric anisotropy
A liquid crystal composition is described, which contains a two-ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as a first component, and a two-ring compound having a negatively large dielectric anisotropy and a small viscosity as a second component, and may further contain at least one of a compound having a small viscosity as a third component, a compound having a negatively large dielectric anisotropy as a fourth component, and a compound having an especially negatively large dielectric anisotropy as a fifth component. An AM liquid crystal display device containing the liquid crystal composition is also described.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20160032188A1Short response timeEasy to useLiquid crystal compositionsUltraviolet lightsEngineering
A liquid crystal composition having at least one or a suitable balance regarding at least two of characteristic such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet-light or heat, or large elastic constant; an AM-device having short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, a negatively large DC brightness relaxation time constant and long-service-life. The liquid crystal composition contains a compound contributing to high stability to heat or ultraviolet-light as an additive component and a specific compound having positively large dielectric anisotropy, and a liquid crystal display device includes the composition. The composition may contain a specific compound having high maximum temperature or small viscosity as a second component or a specific compound having negative dielectric anisotropy as a third component.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20130062560A1Short response timeSmall viscosityLiquid crystal compositionsThin material handlingDielectric anisotropyViscosity
The liquid crystal composition having a negative dielectric anisotropy contains two ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as the first component, three ring compound having a large maximum temperature and a large dielectric anisotropy as the second component, three ring compound having a large optical anisotropy and a large dielectric anisotropy as the third component, and two ring compound having a small viscosity as the fourth component. The liquid crystal display device contains the compositions.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20080099726A1Short response timeEasy to useLiquid crystal compositionsThin material handlingCrystallographyHydrogen
A liquid crystal composition having a nematic phase that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) and (1-2), and the second component is at least one compound selected from the group of compounds having a group represented by formulas (2-1) and (2-2):wherein R1 is alkyl having 1 to 12 carbons; Z1 and Z2 are each independently a single bond or ethylene; X1 is independently fluorine, chlorine, OCF3 or OCF2H; Y1 is independently hydrogen or fluorine; and n is independently 1 or 2.
Owner:JNC PETROCHEM CORP +1
Liquid Crystal Composition and Liquid Crystal Display Device
InactiveUS20100272927A1Short response timeEasy to useLiquid crystal compositionsThin material handlingCrystallographyDielectric anisotropy
The subject is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least the two characteristics. It is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Means for Solving the SubjectThe invention provides a nematic liquid crystal composition that include a specific optically active compound as a first component and a specific compound having a positively large dielectric anisotropy as a second component, and that may include a specific compound having a high maximum temperature or a small viscosity as a third component, and a specific compound having a small minimum temperature and a positively large dielectric anisotropy as a fourth component, and provides a liquid crystal display device including this composition.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20130003009A1Improve solubilitySmall viscosityLiquid crystal compositionsOrganic chemistryElectrical resistance and conductanceElectricity
To provide a liquid crystal composition satisfying at least one characteristic such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy and specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two characteristics; an AM device having a short response time, a large voltage holding ratio and contrast ratio, a long service life and so forth; wherein the liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20110261312A1Short response timeSmall viscosityLiquid crystal compositionsThin material handlingDielectric anisotropyUltraviolet lights
A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal composition having a nematic phase, wherein the first component contains a specific five ring compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a small viscosity, and the third component contains a specific four ring compound having a high maximum temperature. The liquid crystal display device contains the liquid crystal composition.
Owner:JNC PETROCHEM CORP +1
Liquid crystal compound, liquid crystal composition and liquid crystal display device
ActiveUS20160046864A1Stable lightingShort response timeLiquid crystal compositionsOrganic chemistryCrystallographyDielectric anisotropy
To provide a liquid crystal compound satisfying at least one physical property such as high stability to light, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large dielectric constant in a minor-axis direction, suitable elastic constant, excellent compatibility, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. The compound is represented by formula (1):wherein, for example, R1 is alkyl having 1 to 15 carbons, rings A1 to A4 are 1,4-cyclohexylene or 1,4-phenylene, at least one of Z1 to Z5 is —CF2O—, and X1 is fluorine or —OCF3;W1 is a group represented by formula (1a) or (1b); wherein, Y1 to Y5 are fluorine;W2 is a group represented by formula (1c) or (1d); wherein, L1 to L5 are fluorine; and a, b, c and d are independently 0 or 1.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device and use thereof
InactiveUS20140034877A1Short response timeSmall viscosityLiquid crystal compositionsCrystallographyDielectric anisotropy
To provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light, high stability to heat and a large elastic constant, or is to provide a liquid crystal composition having a suitable balance regarding at least two of the characteristics; an AM device having short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has the nematic phase and contains a compound having a difluoromethyleneoxy group and a trifluoromethyl group and having large dielectric anisotropy as a first component, and a specific compound having small dielectric anisotropy as a second component. The liquid crystal display device contains the composition.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20170298275A1Short response timeSmall viscosityLiquid crystal compositionsNon-linear opticsCrystallographyDielectric anisotropy
Shown is a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large dielectric anisotropy and small frequency dependence, or has a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition contains a specific compound having large positive dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having positive dielectric anisotropy as a fourth component or a specific compound having negative dielectric anisotropy as a fifth component.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20170051205A1Short response timeEasy to useLiquid crystal compositionsCrystallographyDielectric anisotropy
To show a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy or having a suitable balance regarding at least two of the characteristics, and an AM device including the liquid crystal composition. The liquid crystal composition contains a specific compound having high maximum temperature and small viscosity as a first component, and a specific compound having large positive dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having positive dielectric anisotropy as a fourth component, or a specific compound having negative dielectric anisotropy as a fifth component.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20150299571A1Easy to useSmall viscosityLiquid crystal compositionsNon-linear opticsDielectric anisotropyRotational viscosity
A liquid crystal composition and an AM device using the same are described. The liquid crystal composition has a negative dielectric anisotropy, and 4.2 GPa·s / N or less as a ratio of rotational viscosity to an elastic constant, and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific compound having a polymerizable group as a second component, and may contain a specific compound having a small viscosity or a large maximum temperature as a third component and a specific compound having a large negative dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.
Owner:JNC CORP +1
Liquid crystal display device
InactiveUS20150225647A1Short response timeSmall viscosityLiquid crystal compositionsStatic indicating devicesDielectric anisotropyViscosity
A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition contains a specific compound having a high maximum temperature or a large positive dielectric anisotropy as a first component and a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, may also contain a specific compound having a small viscosity or a large maximum temperature as a third component, and has a positive dielectric anisotropy. The AM liquid crystal display device includes the composition.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20180127651A1Small viscositySuitable optical anisotropyLiquid crystal compositionsOrganic chemistryCrystallographyDielectric anisotropy
Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics, and an AM device including the composition.The liquid crystal composition contains a quencher as a first additive, and may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having high maximum temperature or small viscosity as a second component, or a specific compound having a polymerizable group as a second additive.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20180208849A1Improve compatibilityShort response timeLiquid crystal compositionsNon-linear opticsDielectric anisotropyVertical alignment
Provided are a liquid crystal composition that contains a polar compound having a polymerizable group, in which vertical alignment of liquid crystal molecules can be achieved by action of the compound (or polymer), and a liquid crystal display device including the composition. The composition satisfies at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat.The composition is a nematic liquid crystal composition that has negative dielectric anisotropy and contains the polar compound as a first additive, and may contain a specific liquid crystal compound having large negative dielectric anisotropy as a first component, a specific liquid crystal compound having high maximum temperature or small viscosity as a second component and a polymerizable compound as a second additive, and the liquid crystal display device includes the composition.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20180066188A1Small viscositySuitable optical anisotropyLiquid crystal compositionsNon-linear opticsCrystallographyDielectric anisotropy
Shown are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having small optical anisotropy as a first component, and a specific compound having large negative dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, or a specific compound having a polymerizable group as an additive.
Owner:JNC CORP +1
Antioxidant having difluoromethoxy group, liquid crystal composition, and liquid crystal display device
ActiveUS20160130501A1Low vapor pressureImprove solubilityLiquid crystal compositionsOrganic chemistryCrystallographyHydrogen
[Subject] One object of the invention is a compound useful as an antioxidant. Other objects include a liquid crystal composition having high stability to ultraviolet light and heat, and a device that hardly undergoes a decrease in voltage holding ratio even after a long-time use.[Solution] The invention relates to a compound represented by formula (1), a liquid crystal composition to which the compound is added, and a liquid crystal display device containing the composition.In formula (1), R1 is hydrogen or alkyl having 1 to 20 carbons, or the like; R2 and R3 are independently methyl, ethyl, isopropyl, or t-butyl; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond or alkylene having 1 to 6 carbons, or the like; and m is 0, 1, or 2.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20190048263A1Short response timeEasy to useLiquid crystal compositionsNon-linear opticsCrystallographyDielectric anisotropy
Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition may contain a specific compound having small viscosity or low minimum temperature as a first component, a specific compound having negative dielectric anisotropy, small viscosity and low threshold voltage as a second component, a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy or low minimum temperature as a fourth component, or a specific compound having a polymerizable group as an additive component.
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20170298276A1Short response timeEasy to useLiquid crystal compositionsNon-linear opticsDielectric anisotropyMaterials science
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
ActiveUS20180105746A1Small viscositySuitable optical anisotropyLiquid crystal compositionsNon-linear opticsCrystallographyDielectric anisotropy
A liquid crystal compound having positive dielectric anisotropy is provided and contains a compound represented by formula (1) as a first component, a compound represented by formula (2) as a second component, a polar compound as a first additive and a polymerizable compound as a second additive.In formula (1), R1a is alkyl having 1 to 12 carbons, or the like; ring Q and ring S are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1a and Z2a are independently a single bond or the like; X1a and X2a are independently hydrogen or fluorine; Y1a is fluorine, chlorine, alkyl having 1 to 12 carbons in which at least one hydrogen is replaced by fluorine or chlorine, or the like; q is 1, 2, 3 or 4; s is 0, 1, 2 or 3; and a sum of q and s is 4 or less.
Owner:JNC CORP +1
Polymerizable polar compound, liquid crystal composition and liquid crystal display device
ActiveUS20200263089A1Good chemical stabilityShort response timeLiquid crystal compositionsOrganic chemistryCrystallographySingle bond
A polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when the compound is used in a liquid crystal display device; and a composition containing the compound. The compound is represented by formula (1). In formula (1), for example, P1 is a group represented by any one of formulas (1b) to (1i), P2 is a group represented by formula (1d), Sp1 and Sp2 are a single bond, Z1, Z2, Z3, Z4 and Z5 are —COO—, and ring A1, ring A2, ring A3 and ring A4 are 1,4-phenylene:
Owner:JNC CORP +1
Liquid crystal composition and liquid crystal display device
InactiveUS20120145960A1Short response timeSmall viscosityLiquid crystal compositionsThin material handlingDielectric anisotropyUltraviolet lights
Providing a liquid crystal composition satisfies at least one of characteristics like a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat or has a suitable balance regarding at least two of the characteristics. Providing an AM device has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having large negative dielectric anisotropy as a first component, a specific three-ring compound having large optical anisotropy as a second component and a specific two-ring compound having low viscosity as a third component, and a liquid crystal display device contains the composition.
Owner:JNC CORP +1
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