Abstract: A liquid crystal composition that contains achiral component T including at least one compound selected from the group of compounds represented by formula (1) and at least one compound selected from the group of compounds represented by formula (2), and a chiral agent to develop an optically isotropic liquid crystal phase. In formulas (1) and (2), R1 and R2 are independently alkoxyalkyl; Z11, Z12, Z21 and Z22 are independently a single bond; L11 to L13, L21 and L22 are independently fluorine; and Y1 and Y2 are independently fluorine, for example.

Abstract: Shown is a method for producing a liquid crystal capsule having a particle diameter of 30 to 150 nanometers, and a method for producing a liquid crystal capsule without using a homogenizer. The disclosure concerns a method for producing a liquid crystal capsule, including a step of preparing an emulsion by performing phase inversion emulsification of a mixed material obtained by mixing a liquid crystal composition, a monomer, a surfactant, and a polymerization initiator; and a step of producing a liquid crystal capsule by applying a coacervation method to the emulsion. The disclosure also concerns a liquid crystal capsule having a liquid crystal composition, a surfactant and a capsule wall, wherein the capsule wall has a closed curved shape, the liquid crystal composition and a hydrophobic moiety of the surfactant are arranged inside the capsule wall, and a hydrophilic moiety of the surfactant is arranged outside the capsule wall.

Abstract: A nematic liquid crystal composition has negative dielectric anisotropy and contains at least one polar compound selected from the group of compounds represented by formula (1) as a first additive, and the liquid crystal display device includes the composition. In formula (1), R1 is hydrogen, halogen, alkyl having 1 to 12 carbons or the like; R2 is a group represented by —OH, —OR0, —NH2, —NHR0 or —N(R0)2, in which R0 is alkyl having 1 to 5 carbons; ring A and ring B are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 is a single bond or the like; Sp1 and Sp2 are independently a single bond, alkylene having 1 to 7 carbons or the like; and a is 0 to 4.

Abstract: 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.

Abstract: 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. 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.

Abstract: The subject is to show a liquid crystal display device that has characteristics such as 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 disclosure relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, and the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component.

Abstract: A method for manufacturing a liquid crystal display device using a liquid crystal composition containing a polar compound having a polymerizable group. Upon manufacturing the liquid crystal display device including a pair of substrates that have no alignment film and arranged to face each other, and including a liquid crystal composition containing a liquid crystal compound and a polymerizable compound as a liquid crystal layer formed between the substrates formed of an electrode group formed on either one or both of surfaces faced by each of the pair of substrates, in which at least one of the polymerizable compounds is a compound having a polar anchor group, wherein the polymerizable compound is allowed to react under conditions of 10 or more in an accumulated light quantity ratio (313 nm/254 nm) at 254 nanometers and 313 nanometers to form an alignment control layer.

Abstract: Shown are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and satisfactory compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition.

Abstract: A liquid crystal display device having a liquid crystal composition, requiring neither an alignment film nor alignment treatment on a substrate. The problem is solved by a low molecular weight polar compound for homogeneously aligning a liquid crystal medium relative to the substrate, for example, the low molecular weight polar compound represented by formula (1). Formula 95 M-P??(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.

Abstract: Provided is a liquid crystal composite that is suitable for dimming and includes a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a large optical anisotropy and a large negative dielectric anisotropy or being suitably balanced between at least two of these characteristics, and a liquid crystal dimming device including the liquid crystal composite, where the liquid crystal composite includes a polymer and a liquid crystal composition including a specific compound having a large negative dielectric anisotropy, and the liquid crystal composite may further include a specific compound having a high maximum temperature or a low minimum temperature.

Abstract: A liquid crystal composition without requiring an alignment film or alignment treatment on a substrate. The problem is solved by a low molecular weight polar compound capable of homogeneously aligning a liquid crystal medium relative to the substrate, for example, a low molecular weight polar compound represented by formula (1). M-P??(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.

Abstract: Compound (1) is provided. R1-MES-Sp1-P1??(1) In compound (1), R1 is alkyl having 1 to 15 carbons; MES is a mesogen group having an at least one ring; Sp1 is a single bond or alkylene having 1 to 10 carbons, and in the alkylene, at least one hydrogen is replaced by group (1a); P1 is group (1e) or (1f); wherein, M1, M2, M3 and M4 are hydrogen; Sp2 and Sp3 are a single bond or alkylene having 1 to 10 carbons; R2 is alkyl having 1 to 15 carbons; R3 is group (1g), (1h) or (1i); wherein, Sp4 and Sp5 are a single bond or alkylene having 1 to 10 carbons; S1 is >CH—, and S2 is >C<; and X is —OH.

Abstract: 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.

Abstract: Shown is a liquid crystal display device including a first substrate, a second substrate and a liquid crystal composition having a nematic phase, which is placed between these substrates, wherein the liquid crystal composition includes at least one compound selected from compounds represented by formula (1) as a first component: wherein in formula (1), R1 and R2 are alkyl or the like; ring A and ring C are 1,4-phenylene or the like; ring B is 2,3-difluoro-1,4-phenylene or the like; Z1 and Z2 are a single bond or the like; and m is 1, 2 or 3, n is 0 or 1, and the sum of m and n is 3 or less.

Abstract: Provided is 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 used in a liquid crystal display device. The compound is represented by formula (1): in which, for example, R1 is alkyl having 1 to 15 carbons; MES is a mesogen group having at least one ring; Sp1 is a single bond or alkylene having 1 to 10 carbons; M1 and M2 are hydrogen; and R2 is a group represented by formulas (1a) to (1c): in which, Sp2 and Sp3 are a single bond or alkylene having 1 to 10 carbons; S1 is >CH—; S2 is >C<; and X1 is —OH.

Abstract: Provided is a polymerizable liquid crystal compound represented by formula (1). An aspect can be exemplified, in which, in formula (1), W1 is hydrogen or a substituent, A1 is 1,4-phenylene, 1,4-cyclohexylene or naphthalene-2,6-diyl, Z1 and Y1 are a connecting group, m and n each are an integer from 0 to 7, in which an expression: 3?m+n?8 holds, Q1 is a spacer, and PG is a polymerizable group.

Abstract: A liquid crystal composition for dimming that satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a large optical anisotropy and a large positive dielectric anisotropy, or that is suitably balanced between at least two of these characteristics, and a liquid crystal dimming device including this composition. A liquid crystal composition for dimming that includes a specific compound having a large positive dielectric anisotropy as a first component and that may include a specific compound having a high maximum temperature or a low minimum temperature as a second component and a specific compound having a large dielectric anisotropy in the minor axis direction as a third component.

Abstract: A liquid crystal composition that satisfies a plurality of characteristics in characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, large optical anisotropy, large dielectric anisotropy (1 kHz and 20 GHz), large specific resistance, high stability to ultraviolet light and high stability to heat, and that can be used in the form of a millimeter wave phase or microwave phase antenna. The liquid crystal composition contains at least two specific compounds having the large optical anisotropy and the large dielectric anisotropy as a first component, and a specific compound having a wide nematic phase and capable of adjusting suitable optical anisotropy as a second component, and may contain such a component compound that can finely control the characteristics of the composition.

Abstract: To provide a liquid crystal composition having at least one or a suitable balance regarding two of characteristics such as high maximum or low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; and an AM device including the composition and having a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a quencher as an additive component and a specific compound having large positive dielectric anisotropy as a first component, 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.

Abstract: The subject is to show a liquid crystal composition in which the homeotropic alignment of liquid crystal molecules can be achieved by the action of a polymer, and a liquid crystal display device including this composition. The means concerns a nematic liquid crystal composition that has positive dielectric anisotropy and that includes a specific liquid crystal compound having a large positive dielectric anisotropy as a first component and a polar compound having a polymerizable group as a first additive, and the composition may include a specific liquid crystal compound having a high maximum temperature or a small viscosity as a second component, a specific liquid crystal compound having a positive dielectric anisotropy as a third component, a specific liquid crystal compound having negative dielectric anisotropy as a fourth component, and a polymerizable compound as a second additive, and concerns a liquid crystal display device including the composition.