摘要:
A liquid crystal composition having a nematic phase 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 having a group represented by formulas (2-1) and (2-2): wherein R1 is alkyl having 1 to 12 carbons; Z1 and Z2 are each independently a single bond or ethylene; X1 is independently fluorine, chlorine, OCF3 or OCF2H; Y1 is independently hydrogen or fluorine; and n is independently 1 or 2.
摘要:
A liquid crystal composition, and a liquid crystal display containing the same, having a nematic phase including three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1 and R2 are each independently alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons; R3 is alkyl having approximately 1 to approximately 12 carbons or alkoxy having approximately 1 to approximately 12 carbons; R4 and R5 are each independently alkyl having approximately 1 to approximately 12 carbons; X1 is fluorine, chlorine, —OCF2H, —CF3 or —OCF3; Y1 is hydrogen or fluorine; and m and n are each independently 0 or 1.
摘要翻译:一种液晶组合物和含有该液晶组合物的液晶显示器,其具有包含三个组分的向列相,其中第一组分是选自式(1)表示的化合物组中的至少一种化合物,第二组分至少为 一种选自由式(2)表示的化合物的化合物,第三组分是选自式(3)表示的化合物中的至少一种化合物:其中R 1和R 2, 各自独立地为具有约1至约12个碳的烷基或具有约2至约12个碳的烯基; R 3是具有约1至约12个碳的烷基或具有约1至约12个碳的烷氧基; R 4和R 5各自独立地为具有约1至约12个碳的烷基; X 1是氟,氯,-OCF 2 H,-CF 3或-OCF 3 3; Y 1是氢或氟; m和n各自独立地为0或1。
摘要:
A liquid crystal composition, and a liquid crystal display containing the same, having a nematic phase including three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1 and R2 are each independently alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons; R3 is alkyl having approximately 1 to approximately 12 carbons or alkoxy having approximately 1 to approximately 12 carbons; R4 and R5 are each independently alkyl having approximately 1 to approximately 12 carbons; X1 is fluorine, chlorine, —OCF2H, —CF3 or —OCF3; Y1 is hydrogen or fluorine; and m and n are each independently 0 or 1.
摘要翻译:一种液晶组合物和含有该液晶组合物的液晶显示器,其具有包含三个组分的向列相,其中第一组分是选自式(1)表示的化合物组中的至少一种化合物,第二组分至少为 一种选自由式(2)表示的化合物的化合物,第三组分是选自式(3)表示的化合物中的至少一种化合物:其中R 1和R 2, 各自独立地为具有约1至约12个碳的烷基或具有约2至约12个碳的烯基; R 3是具有约1至约12个碳的烷基或具有约1至约12个碳的烷氧基; R 4和R 5各自独立地为具有约1至约12个碳的烷基; X 1是氟,氯,-OCF 2 H,-CF 3或-OCF 3 3; Y 1是氢或氟; m和n各自独立地为0或1。
摘要:
Liquid crystalline compounds having a large negative Δε low viscosity, a large K33/K11 value, a small Δε/Δ⊥ and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
摘要翻译:具有较大的负值Deltaepsilon低粘度,较大的K 33 / K 11值的小晶体化合物,即使在低温下也具有相当优异的溶解度,组成 含有至少一种化合物和含有这种液晶组合物的液晶显示装置。
摘要:
Liquid crystal compositions which comprise as a first component at least one compound selected from the group of compounds represented by the formula (I) and as a second component at least one compound selected from the group of compounds represented by the formula (II), the content of the first component being not less than 30% by weight based on the total weight of the composition wherein R1 and R3 are independently an alkyl of 1 to 10 carbon atoms and any —CH2— in the alkyl may be replaced by —O— or —CH═CH—; R2 is an alkyl of 1 to 10 carbon atoms, —F or —Cl; X1, X2, X3, X4, X5, X6, X7, X8 and X10 are independently —F or —H; X9 is —F, —Cl, —CF3, —OCF3 or —OCF2H; A1 and A2 are independently 1,4-cyclohexylene, pyrimidine-2,5-diyl or 1,4-phenylene in which any —H may be replaced by —F; Z1 and Z3 are independently a single bond, —(CH2)2— or —(CH2)4—; Z2 is a single bond or —CF2O—; and Z4 is a single bond, —COO— or —CF2O—. These compositions have reduced response time and low threshold voltage, and are used in a liquid crystal display device, especially that of an OCB mode.
摘要翻译:作为第一成分含有选自式(I)所示化合物的化合物和作为第二成分的至少一种选自式(II)所示的化合物的化合物的化合物的第一成分的液晶组合物, 基于组合物的总重量,第一组分的含量不小于30重量%,其中R 1和R 3独立地是1至10个碳原子的烷基,并且烷基中的任何-CH 2 - 可以是 被-O - 或-CH = CH-取代; R 2是1-10个碳原子的烷基,-F或-Cl; X 1,X 2,X 3,X 4,X 5,X 6,X 7,X 8和X 10独立地为-F或 - H; X 9是-F,-Cl,-CF 3,-OCF 3或-OCF 2 H; A 1和A 2独立地是1,4-亚环己基,嘧啶-2,5-二基或1,4-亚苯基,其中任何-H可被-F代替; Z 1和Z 3独立地是单键, - (CH 2)2 - 或 - (CH 2)4 - ; Z 2是单键或-CF 2 O-; 且Z 4为单键-COO-或-CF 2 O-。 这些组合物具有降低的响应时间和低阈值电压,并且用于液晶显示装置,特别是OCB模式的液晶显示装置中。
摘要:
Silicon compounds having a low viscosity and a low threshold voltage and improved mutual solubility, a liquid crystal composition comprising the same and a liquid crystal display using the liquid crystal composition. The silicon compound is represented by formula (1): wherein Y1 is, for example, alkylene having 1 to 10 carbon atoms, Y2 is, for example, hydrogen, halogen, —CN, —C≡C—CN, or alkyl having 1 to 10 carbon atoms; A1, A2, A3, and A4 each are, for example, independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, or 1,4-phenylene; Z1, Z2 and Z3 each are independently a single bond, —(CH2)2—, —OCH2—, —CH2O—, —CH═CH—, —C≡C—, —(CH2)4—, —O(CH2)3—, —(CH2)3O—, —COO—, —OCO—, —OCF2—, or —CF2O—; and p and q each are independently 0 or 1.
摘要翻译:具有低粘度和低阈值电压和改善的互溶性的硅化合物,包含该硅化合物的液晶组合物和使用该液晶组合物的液晶显示器。 硅化合物由式(1)表示:其中Y 1为例如具有1至10个碳原子的亚烷基,Y 2为例如氢,卤素,-CN,-C = C- CN或具有1至10个碳原子的烷基; A 1,A 2,A 3和A 4各自独立地为1,4-亚环己基,1,4-亚环己烯基,1,4-亚苯基或1,4-亚环己基, 亚苯基; Z 1,Z 2和Z 3各自独立地为单键, - (CH 2)2 - , - OCH 2 - , - CH 2 O - , - CH = CH - , - C = CH2)4-,-O(CH2)3 - , - (CH2)3O-,-COO-,-OCO-,-OCF2-或-CF2O-; p和q各自独立地为0或1。
摘要:
Liquid crystalline compounds having a large negative &Dgr;∈ low viscosity, a large K33/K11 value, a small &Dgr;∈/&Dgr;⊥ and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
摘要:
The present invention provides liquid crystalline compounds having a high voltage holding ratio and a low threshold voltage, little variation of these properties with temperature change, high &Dgr;n, and good compatibility with other liquid crystal materials particularly under a low temperature; liquid crystal compositions containing these crystalline compounds; and liquid crystal display devices made using these liquid crystal compositions. The liquid crystalline compounds are terphenyl derivatives represented by general formula (1): wherein R represents a straight or branched alkyl group of 1-20 carbon atoms, and any methylene groups (—CH2—) not adjacent each other in each alkyl group may be replaced by oxygen atoms; X is a halogen atom, —OCF3, —OCF2H, —CF3, —CF2H or —CFH2; Y1, Y2, Y3, Y4, Y5 and Y6 independently represents H or F, but at least two of Y1, Y2, Y3 and Y4 represent F; and any atom constituting these compounds may be substituted by its isotope.
摘要:
The present invention is to provide a liquid crystal composition which has particularly a high upper limit temperature of a nematic phase, a low lower limit temperature of the nematic phase and a small birefringence while satisfying general characteristics required for the liquid crystal composition for an AM-LCD. Liquid crystal compositions are disclosed which comprise a component I comprising at least one compound selected from the group of compounds represented by Formula (I-1) or (I-2) as described in the specification, a component II comprising at least one compound selected from the group of compounds represented by Formulas (II-1) to (II-8) as described in the specification and a component III comprising at least one compound selected from the group of compounds represented by Formulas (III-1) to (III-5) as described in the specification.
摘要:
The present invention provides a liquid crystalline compound having a difluoropropyleneoxy group as a bonding group, which is represented by Formula (1): wherein R1 and R2 each independently represent hydrogen, halogen, a cyano group or an alkyl group having 1 to 20 carbon atoms; rings A1 to A5 each independently represent a 1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group; Z1 to Z4 each independently represent a single bond, —CH2CH2—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —C≡C—, —CF2O— or —OCF2—; Y1, Y2, Y3 and Y4 each independently represent hydrogen or fluorine; and k, l, m and n each independently represent 0 or 1. This liquid crystalline compound has a large absolute value (|&Dgr;&egr;|) of a dielectric anisotropy and shows a relatively small refractive anisotropy. The present invention further provides a liquid crystal composition comprising this compound which makes it possible to drive display elements of various modes at a low voltage, and a liquid crystal display element containing this liquid crystal composition.