Jnc Corporation

Jnc Petrochemical Corporation

Chisso Corporation

Chisso Petrochemical Corporation

Mayumi Goto

Norikatsu Hattori

Yasuyuki Gotoh

Teruyo Sugiura

Yasuyuki Sasada

Kouki Sagou

Sayaka Fujimori

Hiroyuki Tanaka

Masahide Kobayashi

Junichi Yamashita

Kenji Hirata

Kazuo Okumura

Michiko Sawada

A compound represented by formula (1), a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. 

Compound having naphthalene ring, liquid crystal composition and liquid crystal display device

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 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.

Compound having tetrahydropyran ring, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an 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, Ra and Rb are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; A, Aand Aare 1,4-cyclohexylene or 1,4-phenylene; Zand Zare single bonds, &#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;; Yis &#x2014;CFH or &#x2014;CF; Yis fluorine; and a, b and d are 0, 1, 2 or 3, and c is 1 or 3.

Carbonyl derivative, liquid crystal composition containing compound thereof and liquid crystal display device

To provide a liquid crystal 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 using the composition, and a liquid crystal display device including the composite. The liquid crystal display device prepared using the polymerizable composition containing the compound represented by formula (1): wherein, in formula (1), Pto Pare a polymerizable group; Sto Sare a single bond, alkylene or the like; a1, a3 and a4 are an integer from 0 to 4, a2 is an integer from 1 to 4; ring Ato ring Aare a divalent group derived from benzene, naphthalene, anthracene, pyrimidine, pyridine or the like; Zto Zare a single bond, alkylene or the like, and at least one of Z, Zand Zis &#x2014;C&#x2261;C&#x2014;; and b1 is 0 or 1.

Polymerizable compound having triple bond, liquid crystal composition and liquid crystal display device

A liquid crystal compound is provided that satisfies at least one physical properties such as high stability to ultraviolet light and heat, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy and excellent 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 compound includes a compound represented by formula (1): wherein, Rand Rare alkyl; A, Aand Aare 1,4-cyclohexylene, 1,4-phenylene; G is a divalent group represented by formula (pr-1) or (pr-2); wherein, Z, Zand Zare a single bond or alkylene; and a and b are 0, 1, 2 or 3, and a sum of a and b is 4 or less.

Dihydropyran compound, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound having a large negative value of dielectric anisotropy (&#x394;&#x2208;). A compound is represented by formula (1): wherein, in formula (1), Rand Rare hydrogen, halogen or alkyl having 1 to 10 carbons, and in the alkyl, at least one of &#x2014;CH&#x2014; may be replaced by &#x2014;O&#x2014;, at least one of &#x2014;(CH)&#x2014; may be replaced by &#x2014;CH&#x2550;CH&#x2014;, and at least one of hydrogen may be replaced by halogen; ring Aand ring Aare 1,4-cyclohexylene or 1,4-phenylene; Zis a single bond, &#x2014;(CH)&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;CFO&#x2014;, &#x2014;OCF&#x2014;, &#x2014;COO&#x2014;, or &#x2014;OCO&#x2014;; Y is halogen, &#x2014;CF, &#x2014;CFH or &#x2014;CHF; and m, n and p are 0, 1 or 2, and a sum (m+n) of m and n is 0, 1 or 2.

Phenolic compound having carbonyl as neighboring group and application thereof

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, large dielectric constant in a minor-axis direction, suitable elastic constant, excellent compatibility, 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, Ris alkyl having 1 to 15 carbons, rings Ato Aare 1,4-cyclohexylene or 1,4-phenylene, at least one of Zto Zis &#x2014;CFO&#x2014;, and Xis fluorine or &#x2014;OCF; wherein, Yto Yare fluorine; wherein, Lto Lare fluorine; and a, b, c and d are independently 0 or 1.

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

To provide a liquid crystal compound having a large negative value of dielectric anisotropy (&#x394;&#x2208;). A compound is represented by formula (1): wherein, in formula (1), one of Yand Yis fluorine, and the other is CFH or CF; G is a ring represented by formula (pr-1) or formula (pr-2): wherein Ato Aare independently 1,4-cyclohexylene or 1,4-phenylene; Rand Rare independently hydrogen, alkyl having 1 to 20 carbons, or the like; Z, and Zto Zare independently a single bond, &#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;CFO&#x2014;, &#x2014;OCF&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;; j, m and n are an integer from 0 to 2, and a sum of j, m and n is 0, 1 or 2, however, when m is 0, Yis CFH or CF, Yis fluorine, and Zis a single bond, G is a ring represented by formula (pr-1).

Liquid crystal compound showing negative dielectric anisotropy, liquid crystal composition and liquid crystal display device

The compound represented by formula (1). For example, the rings A, A, Aand Aare 1,4-phenylene, Zand Zare alkylene having 1 to 10 carbons in which at least one &#x2014;CH&#x2014; may be replaced by &#x2014;O&#x2014; or &#x2014;CH&#x2550;CH&#x2014;; L, Land Lare a single bond, &#x2014;COO&#x2014; or &#x2014;CH&#x2550;CH&#x2014;; Gand Gare &#x2014;O&#x2014;; s, t and u areor; and Pand Pis the group (P-1), the group (P-2) or the group (P-3). Mand Mare hydrogen or methyl.

Polymerizable compound, liquid crystal composition and liquid crystal display device

A liquid crystal compound is to be obtained that has stability to heat, light and so forth, a high clearing point, a suitable optical anisotropy, a large negative dielectric anisotropy, and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound is also to be obtained that has a low viscosity, a suitable optical anisotropy, a suitable negative dielectric anisotropy, a low threshold voltage, a high maximum temperature of a nematic phase (phase transition temperature from a nematic phase to an isotropic phase), and a low minimum temperature of a nematic phase. A compound having a hydrocoumarin skeleton is synthesized, and a liquid crystal composition containing the compound is produced.

Compound having hydrocoumarin skeleton, liquid crystal compostition, and liquid crystal display device

Compound having hydrocoumarin skeleton, liquid crystal composition, and liquid crystal display device

A nematic liquid crystal compound represented by any one of formulas (a-1) to (a-6): in formulas (a-1) to (a-6), Ra and Rb are each independently hydrogen or alkyl having 1 to 10 carbons, provided that in the alkyl, &#x2014;CH2- may be replaced by &#x2014;O&#x2014;, &#x2014;(CH2)2- may be replaced by &#x2014;CH&#x2550;CH&#x2014;, and hydrogen may be replaced by a halogen; ring A1 and ring A2 are each independently trans-1,4-cyclohexylene or 1,4-phenylene, provided that in these rings hydrogen may be replaced by a halogen, and in the case where the ring is trans-1,4-cyclohexylene, &#x2014;CH2- may be replaced by &#x2014;O&#x2014;, and &#x2014;CH2CH&#x2014; may be replaced by &#x2014;CH&#x2550;C&#x2014;; and Z1 and Z2 are each independently a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2-, &#x2014;CH2O&#x2014; or &#x2014;CH2CH2-, provided that in formula (a-3), in the case where ring A2 is trans-1,4-cyclohexylene, Z2 is a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2- or &#x2014;CH2O&#x2014;, in the case where Ra is &#x2014;C3H7, Rb is &#x2014;OC2H5, and Z2 is a single bond, ring A2 is trans-1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 2-fluoro- 1,4-phenylene, 3-fluoro-1,4-phenylene, 2-fluoro-3-chloro-1,4-phenylene, 2-chloro- 3-fluoro-3,4-phenylene or 2,3-dichloro-1,4-phenylene, and in formula (a-4), in the case where ring A1 is trans-1,4-cyclohexylene, Z1 is a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2- or &#x2014;CH2O&#x2014;.

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

A liquid crystal composition having a negative dielectric anisotropy that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) and (1-2), and the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3): wherein, for example, R, R, Rand Rare each alkyl having 1 to 12 carbons; Xand Xare each fluorine; ring A, ring B, ring C, ring D, ring E, ring F and ring G are each 1,4-cyclohexylene or 1,4-phenylene; and Zis a single bond.

Liquid crystal composition and liquid crystal display device

A nematic liquid crystal compound represented by any one of formulas (a-1) to (a-6): in formulas (a-1) to (a-6), Ra and Rb are each independently hydrogen or alkyl having 1 to 10 carbons, provided that in the alkyl, &#x2014;CH2- may be replaced by &#x2014;O&#x2014;, &#x2014;(CH2)2- may be replaced by &#x2014;CH&#x2550;CH&#x2014;, and hydrogen may be replaced by a halogen; ring A1 and ring A2 are each independently trans-1,4-cyclohexylene or 1,4-phenylene, provided that in these rings hydrogen may be replaced by a halogen, and in the case where the ring is trans-1,4-cyclohexylene, &#x2014;CH2- may be replaced by &#x2014;O&#x2014;, and &#x2014;CH2CH&#x2014; may be replaced by &#x2014;CH&#x2550;C&#x2014;; and Z1 and Z2 are each independently a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2-, &#x2014;CH2O&#x2014; or &#x2014;CH2CH2-, provided that in formula (a-3), in the case where ring A2 is trans-1,4-cyclohexylene, Z2 is a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2- or &#x2014;CH2O&#x2014;, in the case where Ra is &#x2014;C3H7, Rb is &#x2014;OC2H5, and Z2 is a single bond, ring A2 is trans-1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2-fluoro-3-chloro-1,4-phenylene, 2-chloro-3-fluoro-1,4-phenylene or 2,3-dichloro-1,4-phenylene, and in formula (a-4), in the case where ring A1 is trans-1,4-cyclohexylene, Z1 is a single bond, &#x2014;COO&#x2014;, &#x2014;OCO&#x2014;, &#x2014;OCH2O&#x2014;.

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Chiba, Japan

Mayumi Goto