Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics including a high maximum temperature, a 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 above characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component, and may contain a specific component having high maximum temperature or small viscosity as a third component, a specific component having negative dielectric anisotropy as a fourth component, or a specific compound having a polymerizable group as an additive.

Abstract: A liquid crystal composition that has a positive dielectric anisotropy and a sufficiently low viscosity and that causes no display defects when used in liquid crystal display devices is provided without decreasing or increasing the refractive index anisotropy or nematic phase-isotropic liquid phase transition temperature. This liquid crystal composition contains at least one compound selected from compounds represented by general formula (LC0) and at least one compound selected from the group consisting of compounds represented by general formulas (LC1) to (LC5). This liquid crystal composition can be used to provide a reliable liquid crystal display device capable of maintaining a high voltage-holding ratio at high temperatures. This liquid crystal display device is highly practical as a liquid crystal display and is effective in achieving quick response without significantly decreasing the cell gap.

Abstract: A composition set according to the invention includes a first composition which contains a cellulose derivative having a liquid crystalline functional group, and a second composition which contains a liquid crystalline compound having a reactive functional group and can be in a liquid state. The first composition preferably contains particles whose surfaces are at least partially constituted by the cellulose derivative. Further, the first composition preferably contains a liquid component which functions as a dispersion medium for dispersing the particles.

Abstract: The disclosure provides a liquid crystalline compound that has at least one of physical properties such as high stability with respect to heat and light, a high clearing point (or a high upper limit temperature), a low lower limit temperature of a liquid crystal phase, a low viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant, favorable compatibility with other liquid crystalline compounds at room temperature and low temperatures, a liquid crystal composition including the compound, and a liquid crystal display element including the composition. The compound is represented by Formula (1). Here, R1 is an alkyl group having 2 to 10 carbon atoms in which one —CH2CH2— is substituted with —CH?CH—; R2 is an alkyl group having 1 to 8 carbon atoms; ring A1 is 1,4-cyclohexylene; Y1 and Y2 are hydrogen or fluorine; Z1 is a single bond; and n1 is 1 or 2.

Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.

Abstract: Disclosed are a liquid crystal composition and a display element or display using the liquid crystal composition, wherein the liquid crystal composition contains one or more compounds of general formulas I, II and III, The liquid crystal composition disclosed in the present invention has an excellent performance, an optical anisotropy in the range of 0.080 to 0.150, a low rotary viscosity, a fast response time, and good chemical, optical and thermal stabilities, and is very suitable for manufacturing liquid crystal display elements, particularly suitable for active matrix display elements, such as active matrix displays using a VA, FFS or IPS mode.

Abstract: A compound having a maximum absorption in a wavelength range of 350 nm to 550 nm that functions as a dichroic dye is provided. In particular, a compound represented by formula (1) is provided. In the compound of formula (1), R1 represents a hydrogen atom or the like; R2 represents a hydrogen atom or the like; R3 represents a hydrogen atom or the like; Z represents —CO— or the like; and Y represents a group of formula (Y1). In the group of formula (Y1), * represents a bonding site with N, or a group of formula (Y2); and in the group of formula (Y2), * represents a bonding site with N; P1 and P2 each independently represent —S— or the like; and Q1 and Q2 each independently represent ?N— or the like.

Abstract: The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for self-alignment additives which have a certain position of the functional groups.

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.

Abstract: Disclosed are compounds of the formula I, liquid-crystalline media comprising the compounds of formula I, and the use of these liquid-crystalline media in liquid-crystal displays.

Abstract: Provided is an optical film which has a maximum absorption at a wavelength in the range of 600 to 680 nm, has a high dichroic ratio, and is excellent in light resistance. The optical film includes: a polymer of a polymerizable liquid crystal compound; and a compound represented by the following general formula (1).

Abstract: To provide a polymerizable liquid crystal compound in order to produce a retardation film having excellent front contrast. A polymerizable liquid crystal composition including a compound represented by Formula (1). In Formula (1), for example, W1 is an alkoxycarbonyl group having 1 to 10 carbon atoms, an alkanoyl group having 1 to 10 carbon atoms, or a polymerizable functional group, A1 is independently 1,4-phenylene or naphthalene-2,6-diyl, Z1 is a linking group, m and n are independently an integer of 0 to 7, and satisfy 3?m+n?8, and P1 is a polymerizable functional group.

Abstract: The present application relates to a liquid crystal composition, a polarizing element and a use of the polarizing element. Since the polarizing element may be prepared by a simple coating process, the guest host type liquid crystal composition of the present application allows not only for reducing the manufacturing cost and lightweight thinning of the polarizing element, but also for manufacturing the polarizing element showing an excellent heat resistant stability without changes of absorption spectrum to transmission spectrum even in a severe condition such as high temperature environment. Such a polarizing element can be applied to various display devices such as liquid crystal display devices, EL display devices, field emission display devices, display devices using electronic papers, projection display devices or piezoelectric ceramic display devices.

Abstract: A polymer having a partial structure formed by performing radical polymerization with respect to a compound having a mesogenic group derived from at least one type of liquid crystal compound selected from a rod-like liquid crystal compound and a disk-like liquid crystal compound, and two or more polymerizable groups, in which the polymer is a branched polymer, and a composition containing the polymer, an optical film, and a liquid crystal display device.

Abstract: 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.

Abstract: A liquid crystal display including a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one of liquid crystal compounds including a cyclopentadienyl group.

Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 and R2 have the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.

Abstract: Disclosed are a liquid crystal composition comprising a liquid of formula I and formula II-B, and a liquid crystal compound and a related liquid crystal display device wherein R0, R1, R2 and R3 each independently represent an alkyl group having a carbon atom number of 1-10, a fluoro-substituted alkyl group having a carbon atom number of 1-10, an alkoxy group having a carbon atom number of 1-10, a fluoro-substituted alkoxy group having a carbon atom number of 1-10, an alkenyl group having a carbon atom number of 2-10, a fluoro-substituted alkenyl group having a carbon atom number of 2-10, an alkenoxy group having a carbon atom number of 3-8 or a fluoro-substituted alkenoxy group having a carbon atom number of 3-8, and any one or more non-connected CH2 in R0, R1, R2 and R3 may be substituted with cyclopentyl, cyclobutyl, cyclopropyl or —O—; Y represents ethyl or ethenyl; each independently represent one of and any fluorobenzene; represents benzene or fluorobenzene; and m represents one of 1,

Abstract: The present invention is a liquid crystal composition having negative dielectric anisotropy containing one or two or more of compounds represented by General Formula (i), and is also a liquid crystal display element using the liquid crystal composition. The problem to be solved by the present invention is to provide a liquid crystal composition with a large refractive index anisotropy (?n), a low rotational viscosity (?1), a large elastic constant (K33), a high voltage holding ratio (VHR), and which has a negative dielectric anisotropy (??), and a liquid crystal display element which, when using the liquid crystal composition, has a high response speed with excellent display quality in which display defects such as drop marks, burn-in, and display unevenness are absent or suppressed.

Abstract: Disclosed are a chiral compound, a liquid crystal composition containing the chiral compound, an optically anisotropic body and a liquid crystal display device. The structural formula of said chiral compound is as represented by the following formula I: The chiral compound has a high HTP value and a good solubility; a highly helical, twisted liquid crystal composition can be prepared by adding a small amount of the chiral compound; reducing the addition amount of the chiral compound can reduce the negative effect of the chiral compound on the parameters of the liquid crystal composition; under the conditions of the same addition ratio and the same helical pitch, the chiral compound can reduce the response time of the liquid crystal composition; in addition, the chiral compound has a simple structure and greatly reduces the synthesis cost.