摘要:
Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound represented by the formula [R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3—CF═CFCF2O-A4-Z3-(A5)c-Z4-(A6)d-R2]. In the formula, R1 and R2 independently represent a hydrogen atom, a halogen atom, —CN, —NCS, —SF5, or an alkyl group containing 1 to 18 carbon atoms; A1, A2, A3, A4, A5, A6 and A7 independently represent trans-1,4-cyclohexylene group, 1,4-cyclohexenylene group, 1,3-cyclobutylene group, 1,2-cyclopropylene group, naphthalene-2,6-diyl group, 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, decahydronaphthalene-2,6-diyl group, or 1,4-phenylene group; Z1, Z2, Z3, Z4, and Z5 independently represent a single bond, an alkylene group containing 1 to 4 carbon atoms; and a, b, c, d, and e independently represent 0 or 1 with the proviso that 0≦a+b+c+d+e≦3.
摘要翻译:公开了一种液晶组合物,其适用于制造可在宽温度范围内以低电压驱动并具有高显示质量的液晶电光元件。 还公开了通过使用液晶组合物制造的液晶电光元件。 另外公开了由式[R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3-CF = CFCF2O-A4-Z3-(A5)c- Z4-(A6)d-R2]。 在该式中,R 1和R 2独立地表示氢原子,卤素原子,-CN,-NCS,-SF 5或含有1至18个碳原子的烷基; A1,A2,A3,A4,A5,A6和A7独立地表示反式-1,4-亚环己基,1,4-亚环己基,1,3-环亚丁基,1,2-亚环丙基,萘-2,6 - 二基,1,2,3,4-四氢化萘-2,6-二基,十氢萘-2,6-二基或1,4-亚苯基; Z 1,Z 2,Z 3,Z 4和Z 5独立地表示单键,含有1至4个碳原子的亚烷基; 并且a,b,c,d和e独立地表示0或1,条件是0和nlE; a + b + c + d + e≦̸ 3。
摘要:
Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound represented by the formula [R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3-CF═CFCF2O-A4-Z3-(A5)c-Z4-(A6)d-R2]. In the formula, R1 and R2 independently represent a hydrogen atom, a halogen atom, —CN, —NCS, —SF5, or an alkyl group containing 1 to 18 carbon atoms; A1, A2, A3, A4, A5, A6 and A7 independently represent trans-1,4-cyclohexylene group, 1,4-cyclohexenylene group, 1,3-cyclobutylene group, 1,2-cyclopropylene group, naphthalene-2,6-diyl group, 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, decahydronaphthalene-2,6-diyl group, or 1,4-phenylene group; Z1, Z2, Z3, Z4, and Z5 independently represent a single bond, an alkylene group containing 1 to 4 carbon atoms; and a, b, c, d, and e independently represent 0 or 1 with the proviso that 0≦a+b+c+d+e≦3.
摘要翻译:公开了一种液晶组合物,其适用于制造可在宽温度范围内以低电压驱动并具有高显示质量的液晶电光元件。 还公开了通过使用液晶组合物制造的液晶电光元件。 另外公开了由式[R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3-CF = CFCF2O-A4-Z3-(A5)c- Z4-(A6)d-R2]。 在该式中,R 1和R 2独立地表示氢原子,卤素原子,-CN,-NCS,-SF 5或含有1至18个碳原子的烷基; A1,A2,A3,A4,A5,A6和A7独立地表示反式-1,4-亚环己基,1,4-亚环己基,1,3-环亚丁基,1,2-亚环丙基,萘-2,6 - 二基,1,2,3,4-四氢化萘-2,6-二基,十氢萘-2,6-二基或1,4-亚苯基; Z 1,Z 2,Z 3,Z 4和Z 5独立地表示单键,含有1至4个碳原子的亚烷基; 并且a,b,c,d和e独立地表示0或1,条件是0和nlE; a + b + c + d + e≦̸ 3。
摘要:
Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound useful in preparing this composition.
摘要:
Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound useful in preparing this composition.
摘要:
A liquid crystal compound, a liquid crystal composition, and a liquid crystal electric optical device having a low rotational viscosity (γ1) and appropriate elastic constants. A fluorine-containing liquid crystal compound represented by formula (1). R1-(A1-Z1)a-(A2-Z2)b-(A3-Z3)c-A4-(CH2)n-CF═CF—R2 (1), R1 is a hydrogen atom, a halogen atom, or an alkyl group, R2 is a halogen atom or an alkyl group that may be halogen-substituted or which may include a (thio)ether group, A1 to A4 may be a phenylene group or a cyclohexylene group that may be halogen-substituted or which may include a (thio)ether group, Z1 to Z3 are a single bond, —O—, —S—, or a divalent aliphatic hydrocarbon group that may be halogen-substituted or which may include a (thio)ether group. n is an integer from 0 to 3, and a, b, and c are 0 or 1, provided that a+b+c is 1 or greater.
摘要:
A liquid crystal compound, a liquid crystal composition, and a liquid crystal electric optical device having a low rotational viscosity (γ1) and appropriate elastic constants. A fluorine-containing liquid crystal compound represented by formula (1). R1-(A1-Z1)a-(A2-Z2)b-(A3-Z3)c-A4-(CH2)n-CF═CF—R2 (1), R1 is a hydrogen atom, a halogen atom, or an alkyl group, R2 is a halogen atom or an alkyl group that may be halogen-substituted or which may include a (thio)ether group, A1 to A4 may be a phenylene group or a cyclohexylene group that may be halogen-substituted or which may include a (thio)ether group, Z1 to Z3 are a single bond, —O—, —S—, or a divalent aliphatic hydrocarbon group that may be halogen-substituted or which may include a (thio)ether group. n is an integer from 0 to 3, and a, b, and c are 0 or 1, provided that a+b+c is 1 or greater.
摘要:
A driving method for a liquid crystal display element including L row electrodes and K column electrodes in which two kinds of data, data corresponding to a logical "0" and data corresponding to a logical "1", are used to display gray shades. The row electrodes are divided into row electrode subgroups which are selected as a batch. When the row electrode subgroups are selected, they have a positive voltage level with respect to a non-election voltage and a negative voltage level with respect to a selection voltage. A matrix of column vector components in which row voltages are time-sequentially arranged form a display cycle in each of the row electrode subgroups, and such a matrix has orthogonality. Row voltages are dispersively applied in a display cycle in each of the row electrode subgroups. Further, a number of column vector components K is related to a number of row electrodes L such that K is a minimum value satisfying the orthogonality and L is.ltoreq.2.sup.P =K, where K, L and P are integers. A gray shade is then effectuated by displaying a plural number of ON and OFF signs at a specified ratio.
摘要:
The present invention provides a difluoro-derivative compound of the formula R.sup.1 --(A.sup.1 --Y.sup.1).sub.m --A.sup.2 --CF.dbd.CF--C.tbd.C--A.sup.3 --(Y.sup.2 --A.sup.4).sub.n --R.sup.2 (wherein each of A.sup.1 to A.sup.4 is a trans-1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group, each of m and n is 0 or 1, and each of R.sup.1 and R.sup.2 is a C.sub.1-10 alkyl group, a halogen atom or a cyano group).The compound of the present invention has a low viscosity and is stable against lights, and a high speed response is expected by using it for a liquid crystal composition.
摘要:
A difluoroethylene compound of the following formula (1) having a liquid crystal property is provided:R.sup.1 --(A.sup.1).sub.m --Y.sup.1 --A.sup.2 --CF.dbd.CF--A.sup.3 --Y.sup.2 --(A.sup.4).sub.n --R.sup.2 (1)wherein A.sup.1 --A.sup.4, Y.sup.1, Y.sup.2, R.sup.1, R.sup.2, m and n are as defined herein.
摘要:
A difluoroethylene compound of the following formula (1):R.sup.1 --(A.sup.1).sub.m --Y.sup.1 --A.sup.2 --CF.dbd.CF--A.sup.3 --Y.sup.2 --(A.sup.4).sub.n --R.sup.2 (1)wherein A.sup.3 is a trans-1,4-cyclohexylene group, and each of A.sup.1, A.sup.2 and A.sup.4, which are independent from one another, is a trans-1,4-cyclohexylene group or a 1,4-phenylene group, wherein each of such cyclic groups is unsubstituted or substituted by one or more halogen atoms or cyano groups, one or more .dbd.CH-- groups constituting rings of such cyclic groups may be substituted by nitrogen atoms, and one or more --CH.sub.2 -- groups constituting rings of such cyclic groups may be substituted by oxygen atoms or sulfur atoms.