-
公开(公告)号：US5779933A
公开(公告)日：1998-07-14
申请号：US663226
申请日：1996-06-17
摘要： A liquid crystal composition which comprises 1 to 15% of a first component (a compound selected from compounds of the formulae I-a and I-b), 8 to 40% of a second component (a compound of the formula II), 10 to 30% of a third component (a compound of the formula III), and 10 to 45% of a fourth component (a compound selected from compounds of the formulae IV-a, IV-b, IV-c and IV-d) ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.8 and R.sup.12 is a C.sub.1 -C.sub.10 alkyl group, R.sup.3 is a C.sub.1 -C.sub.10 alkyl group or a C.sub.2 -C.sub.10 alkenyl group, each of R.sup.4, R.sup.7 and R.sup.11 is a C.sub.1 -C.sub.10 alkyl group or alkoxy group, each of R.sup.5 and R.sup.9 is a C.sub.2 -C.sub.10 alkenyl group or alkenyloxy group, each of R.sup.6 and R.sup.10 is a C.sub.2 -C.sub.10 alkenyl group, and R.sup.13 is a C.sub.2 -C.sub.10 alkoxyalkyl group.
摘要翻译： PCT No.PCT / JP96 / 00193 Sec。 371日期1996年6月17日第 102（e）1996年6月17日PCT PCT 1996年2月1日PCT公布。 WO96 / 34071 PCT出版物 日期：1996年10月31日一种液晶组合物，其包含1至15％的第一组分（选自式Ia和Ib的化合物的化合物），8至40％的第二组分（式II的化合物） 10至30％的第三组分（式III的化合物）和10至45％的第四组分（选自式IV-a，IV-b，IV-c和IV-d的化合物 （IV）图像（IV）图像（IV）图像（IV）图像（IV）图像（IV-a）<图像>（IV） （IV-d）其中R 1，R 2，R 8和R 12各自为C 1 -C 10烷基，R 3为C 1 -C 10烷基或C 2 -C 10链烯基，R 4，R 7和R 11各自为 C1-C10烷基或烷氧基，R5和R9各自为C2-C10烯基或烯氧基，R6和R10各自为C2-C10烯基，R13为C2-C10烷氧基烷基。
-
公开(公告)号：US5776366A
公开(公告)日：1998-07-07
申请号：US741720
申请日：1996-10-31
申请人： Yoshitaka Tomi , Tetsuya Matsushita , Fusayuki Takeshita , Katsuyuki Murashiro , Etsuo Nakagawa
发明人： Yoshitaka Tomi , Tetsuya Matsushita , Fusayuki Takeshita , Katsuyuki Murashiro , Etsuo Nakagawa
CPC分类号： C09K19/586 , C09K19/0208 , C09K19/3001 , C09K19/3003 , C09K19/46 , C09K2019/0444
摘要： A chiral, nematic liquid crystal composition suitable to STN-LCD, having superior steepness, rapid response and being able to prevent occurrence of high order and low order domain of LCD, which composition contains as a first component, at least one compound expressed by the formula (1) ##STR1## as a second component, at least one compound expressed by the formula (2) ##STR2## and as a third component, at least one compound of benzonitrile group, ##STR3## and further having a chiral dopant as a fourth component. In the above formulas, R.sup.1 and R.sup.2 each represent a linear alkyl group of 1 to 10 carbon atoms, A and B each represent trans-1,4-cyclohexylene or 1,4-phenylene, and R.sup.3 represents a linear alkyl group of 1 to 10 carbon atoms, or a group wherein an optional --CH.sub.2 -- or two or more not adjacent --CH.sub.2 --s present in the above group are replaced by --O-- or --CH=CH--; X.sup.1 and X.sup.2 each independently represent H or F; C represents --COO--, --C.sub.2 H.sub.4 --, trans-1,4-cyclohexylene or 1,4-phenylene; and n represents 0 or 1, and as a fourth component, a chiral dopant in a quantity in which a ratio (d/p) of the thickness (d.mu.m) of a liquid crystal layer in a liquid crystal cell to be filled with the liquid crystal composition to the helical pitch thereof (p.mu.m) is 0.03 to 2.0.
摘要翻译： 适用于STN-LCD的手性向列型液晶组合物，其具有优异的陡度，快速响应性并且能够防止LCD的高阶和低阶畴的发生，该组合物含有作为第一组分的至少一种化合物 式（1）作为第二组分的至少一种化合物作为第二组分，至少一种由式（2）表示的化合物（2）和作为第三组分的至少一种苄腈基化合物，＆lt; IMAGE＆gt; 3），并且还具有手性掺杂剂作为第四组分。 在上式中，R 1和R 2各自表示1〜10个碳原子的直链烷基，A和B各自表示反式-1,4-亚环己基或1,4-亚苯基，R3表示1〜 10个碳原子，或其中存在于上述基团中的任选的-CH 2 - 或两个或更多个不相邻的-CH 2 -S取代为-O-或-CH = CH-的基团; X1和X2各自独立地表示H或F; C表示-COO - ， - C 2 H 4 - ，反式-1,4-亚环己基或1,4-亚苯基; n表示0或1，作为第四成分的手性掺杂剂，其中液晶单元中待填充的液晶层的厚度（dμm）的比值（dμm） 液晶组合物的螺旋间距（μm）为0.03〜2.0。
-
公开(公告)号：US5149461A
公开(公告)日：1992-09-22
申请号：US733183
申请日：1991-07-19
申请人： Kanetsugu Terashima , Mitsuyoshi Ichihashi , Makoto Kikuchi , Fusayuki Takeshita , Kenji Furukawa
发明人： Kanetsugu Terashima , Mitsuyoshi Ichihashi , Makoto Kikuchi , Fusayuki Takeshita , Kenji Furukawa
CPC分类号： C09K19/46 , C09K19/04 , C09K19/3441
摘要： A ferroelectric liquid crystal composition is here provided which contains at least one chiral compound having an optical activity site group represented by the general formula (I) ##STR1## wherein R.sup.1 is a straight-chain or branched alkyl group or alkoxy group having 1 to 18 carbon atoms, and * indicates an asymmetric carbon atom, and at least one non-chiral compound having a smectic C phase, a smectic I phase, a smectic F phase, a smectic G phase, a smectic H phase, a smectic J phase or a smectic K phase. This composition has quick response properties and assumes an SC* phase in an extensive temperature range inclusive of room temperature. Furthermore, by using this composition, an optical switching element having quick responsiveness can be obtained.
摘要翻译： 这里提供一种铁电液晶组合物，其含有至少一种具有由通式（I）表示的光学活性位点基团的手性化合物，其中R1是直链或支链烷基或具有 1〜18个碳原子，*表示不对称碳原子，以及至少一种具有近晶C相，近晶I相，近晶F相，近晶G相，近晶H相，近晶相的非手性化合物 J相或近晶相。 该组合物具有快速的响应特性并且在包括室温的广泛温度范围内呈现SC *相。 此外，通过使用该组合物，可以获得具有快速响应性的光学开关元件。
-
公开(公告)号：US5035928A
公开(公告)日：1991-07-30
申请号：US577162
申请日：1990-09-04
申请人： Shyuichi Kozaki , Masako Okada , Fumiaki Funada , Kei Sasaki , Hideo Saito , Fusayuki Takeshita
发明人： Shyuichi Kozaki , Masako Okada , Fumiaki Funada , Kei Sasaki , Hideo Saito , Fusayuki Takeshita
CPC分类号： C08G73/105 , C08G73/10 , C09K19/3001 , G02F1/133723 , Y10T428/1023
摘要： Disclosed is an improvement of an active matrix type liquid crystal display device using a combination of a specific mixed liquid crystal and a specific polyimide orientation film.
-
公开(公告)号：US5021190A
公开(公告)日：1991-06-04
申请号：US408500
申请日：1989-08-25
申请人： Makoto Kikuchi , Kanetsugu Terashima , Mitsuyoshi Ichihashi , Fusayuki Takeshita , Kenji Furukawa
发明人： Makoto Kikuchi , Kanetsugu Terashima , Mitsuyoshi Ichihashi , Fusayuki Takeshita , Kenji Furukawa
摘要： The present invention relates to a ferroelectric liquid crystal composition having quick response and comprising a smectic liquid crystal compound and an optically active compound.The ferroelectric liquid crystal composition comprises components A and B, said component A comprising a compound represented by the formula: ##STR1## and/or a compound represented by the formula: ##STR2## said component B comprising a compound represented by the formula: ##STR3## and/or a compound represented by the formula: ##STR4## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.5 are each an alkyl or alkoxy group of 1 to 18 carbon, R.sup.4 and R.sup.6 are each an alkyl group of 2 to 18 carbon atoms or an alkoxy group of 1 to 18 carbon atoms, X and Y are each --CH.sub.2 O--, --OCH.sub.2 --, ##STR5## m, n, k and l are each an integer of 1 or 2 and * is an asymmetric carbon atom, the component A to component B ratio being 1.5 or less. This ferroelectric liquid crystal composition can be used in a light switching element for the purpose of imparting quick response to the light switching element.
-
公开(公告)号：US4826621A
公开(公告)日：1989-05-02
申请号：US204252
申请日：1988-06-09
申请人： Kanetsugu Terashima , Mitsuyoshi Ichihashi , Makoto Kikuchi , Fusayuki Takeshita , Kenji Furukawa
发明人： Kanetsugu Terashima , Mitsuyoshi Ichihashi , Makoto Kikuchi , Fusayuki Takeshita , Kenji Furukawa
CPC分类号： C09K19/3463 , C09K19/46
摘要： A ferroelectric liquid crystal composition comprising smectic liquid crystal compound(s) and optically active compound(s) and having high-speed response properties and a light switching element containing the same are provided, which composition comprises the following three liquid crystal components A, B and C, the respective proportions thereof being 10 to 70%, 10 to 50% and 10 to 40% each by weight based on the total weight of these components, respectively:liquid crystal component A:at least one compound selected from compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 each are 1-18C alkyl, and compounds of the formula ##STR2## wherein R.sup.3 and R.sup.4 each are 1-18C alkyl or alkoxy; liquid crystal compound B:at least one compound of the formula ##STR3## wherein R.sup.5 is a 1-18C alkyl, n is an integer of 0 to 10 and * indicates asymmetric carbon; andliquid crystal component C:at least one compound selected from compounds of the formula ##STR4## wherein R.sup.6 is 1-18C alkyl or alkoxy and * is as defined above; and compounds of the formula ##STR5## wherein R.sup.7 is 1-18 alkyl or alkoxy and * is as defined above.
-
-
-
-
-
搜索结果
76 条记录 (耗时 0.04 秒)
