Jnc Corporation

Jnc Petrochemical Corporation

Chisso Petrochemical Corporation

Tomohiro Yano

Yasuyuki Goto

Hiroyuki Tanaka

Daisuke Ootsuki

Tokifumi Masukawa

Shin-ichi Yamamoto

Fumitaka Kondo

Fumitaka Kondou

Ryushi Shundo

Junichi Yamashita

Maiko Ito

Junichi Inagaki

Kazuhiro Ogita

Masakazu Yano

Hiroki Sago

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, Pis a group represented by any one of formulas (1b) to (1i), Pis a group represented by formula (1d), Spand Spare a single bond, Z, Z, Z, Zand Zare &#x2014;COO&#x2014;, and ring A, ring A, ring Aand ring Aare 1,4-phenylene: 

Polymerizable polar compound, liquid crystal composition and liquid crystal display device

Provided are a polymerizable compound having at least one monovalent group (A), a polymerizable composition containing the polymerizable compound, a liquid crystal composite prepared from the polymerizable composition, and a liquid crystal device having the polymerizable composition.  In monovalent group (A), Rand Rare independently hydrogen, halogen or alkyl having 1 to 20 carbons, and in the alkyl, at least one piece of &#x2014;CH&#x2014; may be replaced by &#x2014;O&#x2014; or &#x2014;S&#x2014;, and at least one piece of &#x2014;(CH)&#x2014; may be replaced by &#x2014;CH&#x2550;CH&#x2014;, and in the groups, at least one hydrogen may be replaced by halogen.

Polymerizable compound and composition, liquid crystal composite, optical anisotropic body, liquid crystal display device and use thereof

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 compound is represented by formula (1):  In formula (1), Ris alkyl or the like; ring Aand ring Aare independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z, Zand Zare independently a single bond, &#x2014;CFO&#x2014; or the like; Xis fluorine, chlorine, &#x2014;CFor the like; Land Lare independently hydrogen, fluorine or the like; a and b are independently 0, 1, 2 or 3; and W is a group represented by formula (1a) or formula (1b);  In formula (1a) and formula (1b), Lto Lare independently hydrogen, fluorine or the like.

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

Provided is a liquid crystal compound that has high stability to heat, light and so forth, a high clearing point, 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).  For example, Ris alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; Ris alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 3 to 10 carbons; ring Ais 1,4-cyclohexylene or 1,4-phenylene; ring Ais 1,4-cyclohexylene or 1,4-phenylene; Zand Zare a single bond; Zis &#x2014;O&#x2014; or a single bond; and Lis F, CFor CFH.

A liquid crystal compound is represented by the formula (1). For example, in the formula (1): Rand Reach represent an alkyl having 1 to 10 carbon atoms, an alkenyl having 2 to 10 carbon atoms, or an alkoxy having 1 to 9 carbon atoms; a ring Aand a ring Aeach represent 1,4-cyclohexylene or 1,4-phenylene; Zand Zeach represent a single bond, &#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;CFO&#x2014;, &#x2014;OCF&#x2014;, &#x2014;CHO&#x2014;, or &#x2014;OCH&#x2014;; and a and b each represent 0, 1, 2, or 3 and the sum of a and b is 4 or less. 

Liquid crystal compound having tetrafluoro cyclohexadiene structure showing negative anisotropy, liquid crystal composition, and liquid crystal display device

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 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, Ris hydrogen, halogen or alkyl having 1 to 20 carbons; ring A, ring A, ring A, ring Aand ring Aare independently 1,4-cyclohexylene or 1,4-phenylene; Z, Z, Zand Zare independently a single bond, &#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014; or &#x2014;CF&#x2550;CF&#x2014;: and a, b, c and d are independently 0 or 1, and a sum of a, b, c and d is one or more.

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The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (&#x394;n), a low threshold voltage and a suitable dielectric anisotropy (&#x394;&#x2208;). A compound represented by formula (1)  For example, Ris alkyl having 1 to 10 carbons, Ris halogen or alkenyl having 2 to 10 carbons; the ring A, the ring Aand the ring Aare 1,4-cyclohexylene or 1,4-phenylene; Z, Zand Zare a single bond or alkylene having 1 to 4 carbons; G is &#x2014;CH&#x2014; or &#x2014;O&#x2014;; and m is 1, and n and p is 0 or 1.

Compound having a five-membered ring, the liquid crystal composition and the liquid crystal display device

The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (&#x394;n), a low threshold voltage and a suitable dielectric anisotropy (&#x394;&#x2208;). A compound represented by formula (1).  For example, Ris alkyl having 1 to 10 carbons, Ris halogen or alkenyl having 2 to 10 carbons; the ring A, the ring Aand the ring Aare 1,4-cyclohexylene or 1,4-phenylene; Z, Zand Zare a single bond or alkylene having 1 to 4 carbons; G is &#x2014;CH&#x2014; or &#x2014;O&#x2014;; and m is 1, and n and p is 0 or 1.

The purpose of the invention is to provide a polymerizable liquid crystal compound that has a liquid crystal phase with a wide temperature range, has an excellent compatibility with another polymerizable liquid crystal compound, has an excellent solubility in organic solvent and is polymerizable in air by heat or light. Means for Solving the Subject A polymerizable liquid crystal compound represented by formula (1) wherein Aand Aare a ring such as 1,4-cyclohexylene and 1,4-phenylene; Zto Zare a bonding group such as a single bond and &#x2014;O&#x2014;, m is an integer of 1 to 5; Qand/or Qare &#x2014;O(CHO)(CHO)&#x2014; or &#x2014;O(CHO)(CHO)&#x2014;, where n1 and n2 are integer of 0 to 5 and the sum of n1 and n2 is 2 to 5; one of Qand Qmay be alkylene; Pand Pare a polymerizable group represented by any one of formula (2-1) to formula (2-3) and R is hydrogen, halogen or alkylene having 1 to 5 carbons. 

Polymerizable liquid crystal compound, composition and polymer

A liquid crystal compound having general physical properties necessary for a liquid crystal compound, a high stability to heat, light or the like, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy and steep electro-optic characteristics, a wide temperature range of a nematic phase and an excellent compatibility with other liquid crystal compounds, and a liquid crystal compound especially having a wide temperature range of a nematic phase. A compound represented by formula (1). with, for example, Rand Rare alkyl having 1 to 10 carbons; Ais 1,4-cyclohexylene; Ais 2,3-difluoro-1,4-phenylene; X is fluorine or chlorine; Zand Zare a single bond; and p and q is 0 or 1.

Trans-monofluoroethylene liquid crystal compound having negative dielectric anisotropy, a liquid crystal composition using the compound and a liquid crystal display device

The compound of the present invention is represented by the formula (1). In the formula (1), Rand Rare hydrogen, fluorine, chlorine, methyl or ethyl; Xand Xare hydrogen, fluorine, methyl or trifluoromethyl; Zand Zare a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;CH&#x2550;CH&#x2014;COO&#x2014;, &#x2014;OCO&#x2014;CH&#x2550;CH&#x2014;, &#x2014;CHCH&#x2014;COO&#x2014;, &#x2014;OCO&#x2014;CHCH&#x2014;, &#x2014;CHO&#x2014;, &#x2014;CONH&#x2014;, &#x2014;(CH)&#x2014;, &#x2014;CHCH&#x2014; or &#x2014;C&#x2261;C&#x2014;; Zand Zare a single bond or &#x2014;O&#x2014;; Aand Aare 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Yand Yare alkylene having from 2 to 20 carbon atoms. 

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Chiba, Japan

Tomohiro Yano