Jnc Corporation

Jnc Petrochemical Corporation

Jnc Petrochemical Corportion

Shin-ichi Yamamoto

Yasuhiro Haseba

Koki Sago

Takafumi Kuninobu

Tomohiro Yano

Fumitaka Kondou

Norikatsu Hattori

Hitoshi Tobata

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&#x2003;&#x2003;(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.

Low molecular weight polar compound for homogeneously aligning liquid crystal medium, and liquid crystal medium containing same

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 95M-P&#x2003;&#x2003;(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.

Liquid crystal display device including liquid crystal medium containing low molecular weight polar compound for homogeneously aligning liquid crystal medium

A liquid crystal composition is described, containing a chiral agent and achiral component T containing at least one compound 1 having an unsubstituted or methyl group-substituted dioxane ring and having at least one &#x2014;COO&#x2014; or &#x2014;CFO&#x2014; as a connecting group, and exhibiting an optically isotropic liquid crystal phase.

Optically isotropic liquid crystal composition and optical device

A liquid crystal medium has stability to heat, light and so forth, and significantly high dielectric anisotropy, and develops an optically isotropic liquid crystal phase. Moreover, various kinds of optical devices can be used in a wide temperature range and have a short response time, a large contrast ratio and low driving voltage. A liquid crystal composition contains achiral component T containing at least one compound 1 represented by formula (1) and a chiral agent, and develops the optically isotropic liquid crystal phase.  In formula (1), for examples, Ris alkyl, Land Lare each independently fluorine or hydrogen, and Xis halogen.

Liquid crystal medium, optical device and liquid crystal compound

A liquid-crystal composition is composed of at least one chiral compound represented by general formula (K1) or (K2) and at least one achiral liquid-crystal component: (wherein, in formulas (K1) and (K2), Ris, for example, alkyl having 1 to 5 carbons, Ris, for example, alkyl having 1 to 20 carbons, ring Ais, for example, 1,4-phenylene, Xis, for example, a single bond, Yis, for example, &#x2014;(CH)&#x2014;, n is an integer from 0 to 20, Zis, for example, a single bond, mk1 is, for example, an integer from 2 to 4, and nk1 and nk2 are, for example, an integer from 0 to 2).

Octahydro binaphthyl-based chiral compound-containing liquid-crystal composition and optical element

A liquid crystal composition is described, which has a nematic phase and contains a compound having a high maximum temperature and a large dielectric anisotropy as a first component, and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a large dielectric anisotropy as a third component, and a compound having a small viscosity as a fourth component. An AM liquid crystal display device including the composition is also described.

Compound, liquid crystal composition and liquid crystal display device

An optically isotropic liquid crystal composition is described. The liquid crystal composition contains an achiral component T and a chiral agent, contains at least one compound represented by formula (1) as a first component of the achiral component T, and exhibits an optically isotropic liquid crystal phase: wherein, for example, Ris alkyl having 1 to 20 carbons; Lto Lare independently hydrogen or fluorine; Zto Zare each independently a single bond, &#x2014;COO&#x2014; or &#x2014;CFO&#x2014;, but at least one thereof is &#x2014;COO&#x2014;; n1 and n2 are each independently 0 or 1; and Xis halogen.

Optically isotropic liquid crystal medium and optical device

A cholesteric liquid-crystal composition is described, which contains a liquid-crystal component and a chiral agent, and has a selective reflection wavelength in the range of 400 nm to 800 nm at 25&#xb0; C.

Liquid-crystal composition

A liquid crystal medium having stability to heat, light and so forth, a wide temperature range of a liquid crystal phase, a large refractive index anisotropy and a large dielectric anisotropy and an optically isotropic liquid crystal phase is described. A liquid crystal composition is characterized by exhibiting the optically isotropic liquid crystal phase and containing achiral component T containing at least one compound selected from the group of compounds represented by formula (1) as a first component, and a chiral agent: wherein, for example, Ris alkyl having 1 to 20 carbons, L, L, L, L, Land Lare independently hydrogen or fluorine, and Xis halogen.

A liquid crystal composition is described, which exhibits an optically isotropic liquid crystal phase and contains an achiral component T and a chiral dopant. The achiral component T contains, as its first component, at least one compound selected from compounds represented by formula (1) in an amount of 32 wt % to 85 wt %, wherein Ris alkyl, for example; L, L, L, L, Land Lare each independently hydrogen or fluorine; Zand Zare each independently a single bond or &#x2014;CFO&#x2014;, with at least one of Zand Zbeing &#x2014;CFO&#x2014;; and Xis halogen, for example.

The invention provides an optically isotropic liquid crystal composition having: a liquid crystal component comprising a liquid crystal component A consisting of one or more compounds selected from the group consisting of compounds having difluoroalkenyl and compounds having alkenyl; and chiral dopants, wherein in the liquid crystal component, the content of compounds having 3 or more ring structures is approximately 15 wt % or more.

Liquid crystal composition and liquid crystal element

A liquid crystal medium having an optically isotropic liquid crystal phase is described, which has stability to heat, light and so on, a broad temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy. A liquid crystal composition is described, which includes an achiral component T and a chiral dopant and exhibits an optically isotropic liquid crystal phase. The achiral component T contains, as its first component, at least one compound selected from compounds represented by formula (1), wherein Ris Calkyl, the rings Ato Aare 1,4-phenylene, Zto Zare single bonds, Yand Yare fluorine; Xis halogen, and i, j, k, m, n, p and q are independently 0 or 1.

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Chiba, Japan

Shin-ichi Yamamoto