Jnc Corporation

Jnc Petrochemical Corporation

Michiko Sawada

Yasuyuki Sasada

Yasuyuki Gotoh

Mayumi Goto

Kazuo Okumura

To provide a compound having an effect of preventing photodegradation of a liquid crystal composition and high solubility in a liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display element containing the composition. There are provided a compound represented by M(Z-Q)m, a liquid crystal composition containing the compound, and a liquid crystal display element using the composition. Here, m is 3, 4, or 5; M is a trivalent, tetravalent, or pentavalent cyclic group, an organic group, or a group constituted by trivalent nitrogen; Z is a single bond, &#x2014;O&#x2014;, &#x2014;COO&#x2014;, or &#x2014;OCO&#x2014;; and Q is a monovalent group represented by Formula (Q-1): 

Piperidine derivative, liquid crystal composition, and liquid crystal display element

Shown is a bimesogenic compound having high solubility in a liquid crystal compound, a liquid crystal composition, a chiral dopant, an additive including an antioxidant or an ultraviolet light absorber, and a polymerizable liquid crystal compound, each of which is used in other bimesogenic compounds or a liquid crystal display device, while maintaining desired physical properties. A compound is represented by formula (1), a liquid crystal composition contains the compound, conjugate fibers with an encapsulated liquid crystal obtained from the liquid crystal composition, and a liquid crystal display device is obtained from the conjugate fibers with the encapsulated liquid crystal.MG-Z-Sp-Z-MG&#x2003;&#x2003;(1)

Liquid crystal compound, liquid crystal composition, composite material with encapsulated liquid crystal, and liquid crystal display device using same

Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat or light, high maximum temperature of a liquid-crystal phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large dielectric anisotropy and good compatibility with other liquid-crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1), a liquid crystal composition contains the compound and a liquid crystal display device includes the composition.  In formula (1), Ra and Rb are fluorine or alkyl; A, Aand Aare 1,4-phenylene; Zand Zare a single bond or alkylene; one of Yand Yis fluorine, and the other is hydrogen; Rc is alkyl; and a and b are independently 0, 1, 2 or 3, and a sum of a and b is 0, 1, 2 or 3.

Liquid crystal compound, liquid crystal composition and liquid crystal display device

A compound, represented by formula (1): wherein, Rand Rare alkyl having 1 to 15 carbons or the like; ring Ais tetrahydropyran-2,5-diyl, and ring Aand ring Aare 2-fluoro-1,4-phenylene or 2-chloro-1,4-phenylene; Z, Zand Zare a single bond or the like; and a and b are 0 or 1, and a sum of a and b is 1.

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Chiba, Japan

Michiko Sawada