摘要:
A ferroelectric liquid crystal composition and a photoswitching element prepared by using same are disclosed. This composition gives the element a quick response. The composition comprises at least one compound represented by general formula (I) (wherein R 1 and R 2 each represents an alkyl group containing 1 to 18 carbon atoms) and at least one optically active compound represented by general formula (II) (wherein R 3 represents an alkyl or alkoxy group containing 1 to 18 carbon atoms, R 4 represents an alkyl group containing 2 to 18 carbon atoms, X represents a single bond, -COO-, -OCO-, -N=CH-, -CH = N -, -OCH 2- or -CH 2 0-, m and n each represents an integer of 1 or 2, and represents an asymmetric carbon atom). The photo-switching element prepared by using the composition shows a quick response.
摘要:
A ferroelectric liquid crystal composition and a photoswitching element prepared by using same are disclosed. This composition gives the element a quick response. The composition comprises at least one compound represented by general formula (I) (wherein R1 and R2 each represents an alkyl group containing 1 to 18 carbon atoms) and at least one optically active compound represented by general formula (II) (wherein R3 represents an alkyl or alkoxy group containing 1 to 18 carbon atoms, R4 represents an alkyl group containing 2 to 18 carbon atoms, X represents a single bond, -COO-, -OCO-, -N=CH-, -CH=N-, -OCH2- or -CH2O-, m and n each represents an integer of 1 or 2, and * represents an asymmetric carbon atom). The photo-switching element prepared by using the compositon shows a quick response.
摘要:
A ferroelectric liquid crystal composition comprising a smetic liquid crystal compound and an optically active compound and showing a quick response, and a photo-switching element prepared by using same are disclosed. Said composition comprises a compound represented by (I) and/or a compound represented by (II), as component A; and a compound represented by (III) and/or a compound represented by (IV), as component B (wherein R1, R2, R3 and R5 each represents an alkyl or alkoxy group containing 1 to 18 carbon atoms, R4 and R6 each represents an alkyl group containing 2 to 18 carbon atoms or an alkoxy group containing 1 to 18 carbon atoms, X and Y each represents -CH2O-, -OCH2-, (a) or (b), m, n, k and l each represents an integer of 1 or 2, and * represents an asymmetric carbon atom, with A/B being not more than 1.5. A photo-switching element prepared by using the composition has a quick response.
摘要:
Provided is a liquid crystal medium for an electro-optical liquid crystal display of an IPS mode which does not cause burning and which is suitable for achieving a relatively low threshold voltage and a short response time. The liquid crystal medium for an IPS mode display comprising 5 to 30 % by weight of the first component (compound of Formula I) and 5 to 50 % by weight of the second component (compound of Formula II) or the liquid crystal medium comprising 100 % by weight of this liquid crystal medium and 5 to 30 % by weight of the third component (compound of Formula III): wherein R 1 to R 3 represent a C 1 to C 10 alkyl group, an alkoxy group or an oxalkyl group (containing 1 to 4 oxygen atoms), or a C 2 to C 10 alkenyl group; X represents transcyclohexylene or phenylene; A represents -CO-O- or a single bond; and Y 1 represents a hydrogen atom or a fluorine atom.
摘要:
A liquid crystal composition containing 1-15 % of a first component (compounds of formulae (I-a and I-b), 8-40 % of a second component (compounds of formula II), 10-30 % of a third component (compounds of formula III), and 10-45 % of a fourth component (compounds of formulae IV-a, IV-b, IV-c, and IV-d), wherein R 1 , R 2 , R 8 and R 12 represent each C 1 -C 10 alkyl; R 3 represents C 1 -C 10 alkyl or C 2 -C 10 alkenyl; R 4 , R 7 and R 11 represent each C 1 -C 10 alkyl alkoxy; R 5 and R 9 represent each C 2 -C 10 alkenyl or alkenyloxy; R 6 and R 10 represent each C 2 -C 10 alkenyl; and R 13 represents C 2 -C 10 alkoxyalkyl.
摘要翻译:含有1-15%第一组分(式(Ia和Ib)化合物,8-40%第二组分(式II化合物)),10-30%第三组分(式 III)和10-45%的第四组分(式IV-a,IV-b,IV-c和IV-d的化合物),其中R 1,R 2,R 8和 R 12表示每个C 1 -C 10烷基; R 3表示C 1 -C 10烷基或C 2 -C 10烯基; R 4,R 7和R 11表示每个C 1 -C 10烷基烷氧基; 5>和R 9代表每个C 2 -C 10烯基或烯氧基; R 6和R 10表示每个C 2 -C 10烯基; R 13代表C 2 -C 10烷氧基烷基。
摘要:
A ferroelectric liquid crystal composition comprising a smetic liquid crystal compound and an optically active compound and showing a quick response, and a photo-switching element prepared by using same are disclosed. Said composition comprises a compound represented by (I) and.'or a compound represented by (II), as component A; and a compound represented by (III) and/or a compound represented by (IV), as component B (wherein R 1 , R 2 , R 3 and R 5 each represents an alkyl or alkoxy group containing 1 to 18 carbon atoms, R 4 and R 6 each represents an alkyl group containing 2 to 18 carbon atoms or an alkoxy group containing 1 to 18 carbon atoms, X and Y each represents -CH 2 0-, -OCH 2 , (a) or (b), m, n, k and 1 each represents an integer of 1 or 2, and represents an asymmetric carbon atom, with A/B being not more than 1.5. A photo-switching element prepared by using the composition has a quick response.