摘要:
A ferroelectric liquid crystal composition comprising at least one compound represented by the formula (I): wherein R¹ and R² are, the same or different, a straight-chain or branched-chain alkyl group having 1 to 15 carbon atoms, and each asterisk represents an asymmetric carbon atom, and at least one compound represented by the formula (II): wherein R³ and R⁴ are, the same or different, a straight-chain or branched-chain alkyl group having 1 to 15 carbon atoms, and each asterisk represents an asymmetric carbon atom, and liquid crystal device incorporating same.
摘要:
A ferroelectric liquid crystal composition including : at least one optically active compound of the formula (I) : where R 1 and R 2 are, the same or different, a substituted or unsubstituted straight or branched chain alkyl group having 1 to 15 carbon atoms, k represents an integer of 0 or 1, and * represents an asymmetric carbon atom ; and at least one compound selected from the group consisting of: compounds of the formula (II) : where R 3 and R 4 are a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, each represent X represents -O-, -CO- or a single bond, m and n are independently an integer of 0 or 1 ; compounds of the formula (III) : where R 5 and R 6 are, the same or different, a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, and p is an integer of 0 or 1 ; said ferroelectric liquid crystal composition exhibiting at least nematic phase, smectic A phase and smectic C phase.
摘要:
A ferroelectric liquid crystal device having a pair of substrates each provided with voltage applying means, an orientation control layer formed on at least one of the substrates, and a layer of ferroelectric liquid crystal composition disposed between the pair of substrates, the ferroelectric liquid crystal composition comprising at least one compound (a) having an optically active group of the formula (I): , at least one compound (b) which is reverse to the compound (a) in the direction of a helical pitch induced in a nematic phase and at least one liquid crystal compound (c) exhibiting a smectic C phase, the liquid crystal composition exhibiting at least a smectic C phase, smectic A phase and nematic phase.
摘要:
A ferroelectric liquid crystal composition comprising at least one compound represented by the formula (I): wherein R¹ and R² are, the same or different, a straight-chain or branched-chain alkyl group having 1 to 15 carbon atoms, and each asterisk represents an asymmetric carbon atom, and at least one compound represented by the formula (II): wherein R³ and R⁴ are, the same or different, a straight-chain or branched-chain alkyl group having 1 to 15 carbon atoms, and each asterisk represents an asymmetric carbon atom, and liquid crystal device incorporating same.
摘要:
A ferroelectric liquid crystal composition including: at least one compound of the formula (I):
[where - A - represents 1,4-phenylene or 1,4-cyclohexylene group; - B - represents 1,4-phenylene or 2,6-naphthylene group; and R and R′ are, the same or different, a substituted or unsubstituted straight or branched chain alkyl or alkoxy group having 4-15 carbon atoms], at least one compound of the formula (II):
[where k and j are 0 or 1 and k + j = 1; and R and R′ have the same meaning as defined in the formula (I)] and a compound selected from the group consisting of a compound of the formula (IV):
[where R I represents a substituted or unsubstituted straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms; R¹¹ represents a straight or branched chain alkyl group;
represents 1,4-cyclohexylene, 1,4-phenylene or 2,5-pyrimidinylene group; X is a hydrogen or halogen atom or a cyano group; Y is -COO- or a single bond; Z is a hydrogen atom or a methyl group; k is 0 or 1; and * represents an asymmetric carbon atom] and a compound of the formula (V):
[where R¹ and R¹′ are each a substituted or unsubstituted straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms;
is 1,4-cyclohexylene or 1,4-phenylene group; is a hydrogen atom or a methyl group; and * represents an asymmetric carbon atom].
摘要:
A ferroelectric liquid crystal composition including : at least one optically active compound of the formula (I) : where R 1 and R 2 are, the same or different, a substituted or unsubstituted straight or branched chain alkyl group having 1 to 15 carbon atoms, k represents an integer of 0 or 1, and * represents an asymmetric carbon atom ; and at least one compound selected from the group consisting of: compounds of the formula (II) : where R 3 and R 4 are a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, each represent X represents -O-, -CO- or a single bond, m and n are independently an integer of 0 or 1 ; compounds of the formula (III) : where R 5 and R 6 are, the same or different, a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, and p is an integer of 0 or 1 ; said ferroelectric liquid crystal composition exhibiting at least nematic phase, smectic A phase and smectic C phase.
摘要:
A ferroelectric liquid crystal device having a pair of substrates each provided with voltage applying means, an orientation control layer formed on at least one of the substrates, and a layer of ferroelectric liquid crystal composition disposed between the pair of substrates, the ferroelectric liquid crystal composition comprising at least one compound (a) having an optically active group of the formula (I): , at least one compound (b) which is reverse to the compound (a) in the direction of a helical pitch induced in a nematic phase and at least one liquid crystal compound (c) exhibiting a smectic C phase, the liquid crystal composition exhibiting at least a smectic C phase, smectic A phase and nematic phase.