Jnc Corporation

Jnc Petrochemical Corporation

Chisso Petrochemical Corporation

Masahide Kobayashi

Yasuyuki Gotoh

Teru Shimada

Junichi Yamashita

Takahiro Kobayashi

Mayumi Goto

Takahiro Kubo

Sayaka Fujimori

A polymerizable compound has a high polymerizability, a high conversion ratio and a high solubility in a liquid crystal composition. A polymerizable composition contains the compound. A liquid crystal composite is prepared from the composition. A liquid crystal display device includes the liquid crystal composite. The polymerizable compound is formed in which the polymerizable compound has at least two polymerizable groups in which at least one polymerizable group is acryloyloxy or methacryloyloxy, and at least one remaining polymerizable group is a polymerizable group selected from the group of groups represented by formulas (P-1), (P-2) and (P-3).  In formulas (P-1) to (P-3), Rto Rare independently hydrogen, fluorine, methyl, ethyl or trifluoromethyl.

Polymerizable compound, polymerizable composition and liquid crystal display device

A polymerizable compound having high polymerization reactivity, a high conversion ratio and high solubility in a liquid crystal composition, a polymerizable composition containing the compound, a liquid crystal composite prepared from the composition and a liquid crystal display device having the composite are shown. The polymerizable compound has three or four rings in a serial arrangement and not being mutually condensed, and has three or more polymerizable groups among which at least one is bonded with a ring which is not an either terminal of the three or four rings. The polymerizable composition contains the above polymerizable compound and a liquid crystal composition. The liquid crystal composite is prepared from the above polymerizable composition, and the liquid crystal display device has the liquid crystal composite.

To provide a liquid crystal compound satisfying at least one of 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 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. A compound is represented by formula (1-1). For example, Rand Rare independently hydrogen, alkyl having 1 to 10 carbons, alkenyl having 3 to 10 carbons and alkoxy having 1 to 9 carbons; ring Ais 1,4-cyclohexylene; ring Aand ring Aare independently 1,4-cyclohexylene or 1,4-phenylene; Zis a single bond or &#x2014;(CH); l is 0 or 1, m and n are 0, 1 or 2, a sum: l+m+n is 0, 1 or 2; x is 0 or 1.

Liquid crystal compound having butene-bonding group, liquid crystal composition and liquid crystal display device

A liquid crystal compound is provided that satisfies at least one physical property such as high stability to heat and light, a high clearing point, low minimum temperature of liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, suitable elastic constant and compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound and a liquid crystal display device including the composition is also provided. The liquid crystal compound is represented by formula (1) in which Ris alkyl having 1 to 10 carbons, rings A, Aand Aare independently 1,4-phenylene, ring Ais a divalent group represented by any one of formulas (Ch), (Cx) and (ch), Z, Z, Zand Zare a single bond, Xis fluorine, Land Lare fluorine, a, b and c are independently 0 or 1, and a sum of a, b and c is 0 or 1.

Liquid crystal compound having cyclohexene ring, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound satisfying at least one physical property such as high stability to light, a high clearing point, low minimum temperature of a liquid-crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant, excellent compatibility with other liquid crystal compounds. The compound is represented by formula (1-1):  Wis a group represented by formula (1c) or (1d); Yto Yare hydrogen, Yto Yand Lto Lare fluorine.

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

To provide a liquid crystal compound satisfying at least one of 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): wherein, for example, R is alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons; ring A, ring Aand ring Ais 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; at least one of Land Lis fluorine and the remainder is hydrogen; Z, Zand Zare a single bond, &#x2014;(CH)&#x2014;, &#x2014;CHO&#x2014; or &#x2014;COO&#x2014;; x and y are an integer from 0 to 10; and l, m and n are 0 or 1.

Liquid crystal compound having fluorine-containing alkenyl terminal group, 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 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 (1-1): wherein, 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, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Zand Zare single bonds; Land Lare fluorine; and 1 is 0, 1 or 2.

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

The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): wherein, for example, Rand Rare alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; ring Ais trans-1,4-cyclohexylene or 1,4-phenylene; ring Ais trans-1,4-cyclohexylene or 2,3-difluoro-1,4-phenylene; Qand Qare fluorine or chlorine; and h is 0, 1 or 2.

Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition and liquid crystal display device using the same

A liquid crystal compound having a high stability to heat, light or the like, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds, and a liquid crystal composition including this compound, and a liquid crystal display device containing this composition. A compound represented by formula (1-1). In the formula, for example, Rand Rare alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons; ring Aand ring Aare 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Zand Zare a single bond or &#x2014;(CH)&#x2014;; &#x3e;W&#x2014;W&#x2014; and &#x3e;W&#x2014;W&#x2014; are &#x3e;CH&#x2014;CH&#x2014; or &#x3e;C&#x2550;CH&#x2014;; and m and n are 0, 1 or 2, and the sum of m and n is 1 or 2.

Compound having bicyclo[3.3.0]octane-2,6-diyl, liquid crystal composition and liquid crystal display device

The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a suitable elastic constant K, a suitable and negative dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition containing the compound described above and having stability to heat, light and so forth, a small viscosity, a suitable optical anisotropy, a suitable and negative dielectric anisotropy, a suitable elastic constant K, a low threshold voltage, a high maximum temperature of a nematic phase, and a low minimum temperature of the nematic phase. The invention also provides a liquid crystal display device having a short response time, a small power consumption, a low driving voltage, and a large contrast, and containing the composition described above which can be used in a large temperature range. For example, a liquid crystal compound having four or more rings in which the central ring has 2,3-difluorophenoxy such as trans-4'-[2,3-difluoro-4-(trans-4-propylcyclohexyl)phenoxymethyl]-trans-4-pentylbicyclohexyl is provided. Further provided is a liquid crystal composition containing the compound, and a liquid crystal display device using this liquid crystal composition.

A liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition. 

A liquid crystal compound represented by formula (1-1).  For example, Rand Rare independently hydrogen, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons or alkenyloxy having 2 to 9 carbons; the ring Ais trans-1,4-cyclohexylene, 1,4-cyclohexenylene, 1,3-dioxane-2,5-diyl, pyrimidine-2,5-diyl or pyridine-2,5-diyl; Land Lare independently hydrogen or fluorine, and at least one of them is fluorine; and Z, Zand Zare independently a single bond, &#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;C&#x2261;C&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;.

The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K, and further having a suitable negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition including this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition; a liquid crystal compound represented by formula (a): 

The invention provides a liquid crystal compound having a high stability to heat, light or the like, a nematic phase in a wide temperature range, a small viscosity, a suitable optical anisotropy (especially, a relatively small optical anisotropy), a large elastic constant Kand a suitable dielectric anisotropy (especially, a relatively large dielectric anisotropy), which is represented by formula (1-1). For example, Rand Rare alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; the ring Aand the ring Ais 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene; and m and n are 0, 1, 2 or 3, and the sum of m and n is 3.

Five-ring liquid crystal compound, liquid crystal composition and liquid crystal display device

The subject is to provide a liquid crystal that has a high stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K, and further has a large negative dielectric anisotropy and an excellent compatibility with any other liquid crystal compound. The invention provides the compound (1): wherein, for example, Rand Rare hydrogen, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons or alkenyloxy having 2 to 9 carbons; when one of the ring A, the ring Aand the ring Ais 1,4-phenylene or 2,3-difluoro-1,4-phenylene, the other two are 1,4-cyclohexylene or 1,4-cyclohexenylene; and Zis a single bond, &#x2014;(CH)&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;.

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Chiba, Japan

Masahide Kobayashi