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公开(公告)号:US5387369A
公开(公告)日:1995-02-07
申请号:US997834
申请日:1992-12-29
申请人: Georg Weber , Herbert Plach , Takamasa Oyama , Hiroki Yoshitake , Bernhard Scheuble , Reinhard Hittich , Hans A. Kurmeier , Eike Poetsch , Klaus P. Stahl
发明人: Georg Weber , Herbert Plach , Takamasa Oyama , Hiroki Yoshitake , Bernhard Scheuble , Reinhard Hittich , Hans A. Kurmeier , Eike Poetsch , Klaus P. Stahl
CPC分类号: C09K19/3001 , C09K19/0208 , C09K19/42
摘要: Supertwist liquid crystal displays having very short switching times are obtained if the nematic liquid crystal mixture contains at least one component chosen from group A consisting of compounds of the formulae AI to AVI: ##STR1## wherein R.sup.1 and R.sup.2 in each case independently of one another are each R and R is alkyl having 1-12 C atoms, wherein one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, --CH.dbd.CH--, --CO--, --O--CO-- or --CO--O--, and up to four other components.
摘要翻译: 如果向列型液晶混合物含有至少一种选自由式AI至AVI的化合物组成的组A的组分,则获得具有非常短的切换时间的超扭曲液晶显示器:图像 其中R 1和R 2在每种情况下彼此独立地各自为R和R为具有1-12个C原子的烷基,其中一个或两个不相邻的CH 2基团也可以被 - O-,-CH = CH-,-CO-,-O-CO-或-CO-O-,以及多达四个其它组分。
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公开(公告)号:US5496499A
公开(公告)日:1996-03-05
申请号:US180413
申请日:1994-01-12
申请人: Eike Poetsch , Volker Meyer , Klaus P. Stahl , Volker Reiffenrath , Ulrich Finkenzeller , Ekkehard Bartmann , Reinhard Hittich , David Coates , Simon Greenfield , Graham Smith , Hans A. Kurmeier , Dieter Dorsch
发明人: Eike Poetsch , Volker Meyer , Klaus P. Stahl , Volker Reiffenrath , Ulrich Finkenzeller , Ekkehard Bartmann , Reinhard Hittich , David Coates , Simon Greenfield , Graham Smith , Hans A. Kurmeier , Dieter Dorsch
IPC分类号: G02F1/13 , C07C22/08 , C07C25/18 , C07C25/24 , C07C43/174 , C07C43/225 , C07C205/12 , C07C255/50 , C07C323/09 , C07C323/18 , C07C323/62 , C07C331/28 , C09K19/14 , C09K19/30 , C09K19/12
CPC分类号: C07C22/08 , C07C25/18 , C07C255/50 , C07C43/225 , C09K19/14 , C09K19/3028 , C07C2101/14
摘要: Biphenylylethanes of the formula I ##STR1## in which one of the radicals R.sup.1 and R.sup.2 is X and the other radical R.sup.1 or R.sup.2 is R--Y-- whereX is H, halogen, --CF.sub.3, --OCHF.sub.2, --OCF.sub.3, --CN, --NCS or --NO.sub.2,R is alkyl, fluoroalkyl, alkenyl or oxaalkyl andY is O, S, --CO--O--, --O--CO--, --O--CO--O--, a single bond or--in the case where m=1--alternatively trans-1,4-cyclohexylene or ##STR2## m is 1 or 2, Ph is in each case identical or different radicals selected from the group comprising 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene and 3,5-difluoro-1,4-phenylene,L.sup.3 and L.sup.4 are each H, or one of these radicals is alternatively F,L.sup.1, L.sup.2and L.sup.5 are each H or F, with the proviso that in the case where X=CN or R.sup.1 =--NCS, Y is trans-1,4-cyclohexylene or ##STR3## and/or m=2 and/or one of the radicals L.sup.1, L.sup.2 and L.sup.3 is fluorine and/or Ph--CN is 2-fluoro-4-cyanophenyl or 3,5-difluoro-4-cyanophenyl,are suitable as components of liquid-crystalline phases.
摘要翻译: 其中基团R 1和R 2中的一个为X并且另一个基团R 1或R 2为RY-,其中X为H,卤素,-CF 3,-OCHF 2,-OCF 3,-CN, - C 1 -C 6烷基的双苯并噻吩, NCS或-NO 2,R是烷基,氟烷基,烯基或氧杂烷基,Y是O,S,-CO-O-,-O-CO-,-O-CO-O-,单键或 - m = 1-替代反-1,4-亚环己基或m为1或2,Ph各自为相同或不同的基团,选自1,4-亚苯基,2-氟-1,4-亚苯基, 亚苯基,3-氟-1,4-亚苯基和3,5-二氟-1,4-亚苯基,L3和L4各自为H,或者这些基团中的一个为F,L 1,L 2和L 5各自为H或F 条件是在X = CN或R1 = -NCS的情况下,Y为反式-1,4-亚环己基或/或m = 2,和/或基团L1,L2和L3之一为 氟和/或Ph-CN是2-氟-4-氰基苯基或3,5-二氟-4-氰基苯基,适合作为液晶相的组分。
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公开(公告)号:US5093026A
公开(公告)日:1992-03-03
申请号:US469498
申请日:1990-04-02
申请人: David I. Bishop , Stephen Lewis , David Coates , Simon Greenfield , Eike Poetsch , Volker Meyer , Klaus P. Stahl , Volker Reiffenrath , Herbert Plach , Reinhard Hittich , Andreas Wachtler
发明人: David I. Bishop , Stephen Lewis , David Coates , Simon Greenfield , Eike Poetsch , Volker Meyer , Klaus P. Stahl , Volker Reiffenrath , Herbert Plach , Reinhard Hittich , Andreas Wachtler
IPC分类号: G02F1/13 , C07C15/18 , C07C25/18 , C07C25/24 , C07C43/174 , C07C43/205 , C07C43/225 , C07C323/09 , C07C323/19 , C07C323/62 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/42
CPC分类号: C07C43/205 , C07C15/18 , C07C25/18 , C07C43/225 , C09K19/14 , C09K19/3028 , C07C2101/14
摘要: Biphenylylethanes of the formula I,R.sup.1 --CH.sub.2 --X--(CH.sub.2 CH.sub.2).sub.m --Ph--Ph--CH.sub.2 CH.sub.2 --Ph--Y--CH.sub.2 --R.sup.2 Iin whichR.sup.1 and R.sup.2 are each, independently of one another, alkyl, alkenyl or oxaalkyl having up to 12 C atoms, and one of the radicals R.sup.1 and R.sup.2 is alternatively H,m is 0 or 1,X and Y are each, independently of one another, O, S, CO--O, O--CO, O--CO--O or a single bond, the radical X is alternatively 1,4-phenylene or trans-1,4-cyclohexylene, and the radical Y is alternatively trans-1,4-cyclohexylene, andis 1,4-phenylene, and one or two of the radicals Ph is alternatively 2- or 3-fluoro-1,4-phenylene,with the proviso that, in the case (a) where X=1,4-phenylene and m=1, one or two of the radicals Ph are 2- or 3-fluoro-1,4-phenylene, and (b) in the case where X=trans-1,4-cyclohexylene, m=0 and one or two of the radicals Ph are 2- or 3-fluoro-1,4-phenylene, are suitable as components of liquid-crystalline phases.
摘要翻译: PCT No.PCT / EP90 / 00119 Sec。 371日期1990年04月2日 102(e)1990年4月2日PCT PCT 1990年1月22日PCT公布。 公开号WO90 / 08756 日本1990年8月9日。式I的联苯基醚,R1-CH2-X-(CH2CH2)m-Ph-Ph-CH2CH2-Ph-Y-CH2-R2 I,其中R1和R2各自独立地为 ,具有至多12个C原子的烷基,烯基或氧杂烷基,基团R 1和R 2中的一个可选地为H,m为0或1,X和Y各自彼此独立地为O,S,CO-O, O-CO,O-CO-O或单键,基团X为1,4-亚苯基或反式-1,4-亚环己基,基团Y为反式-1,4-亚环己基,为1 ,4-亚苯基和一个或两个基团Ph可选择地为2-或3-氟-1,4-亚苯基,条件是在(A)中,X = 1,4-亚苯基和m = 1中,一个或两个基团Ph是2-或3-氟-1,4-亚苯基,和(b)在X =反式-1,4-亚环己基,m = 0和一个或两个 基团Ph是2-或3-氟-1,4-亚苯基,适合作为液晶相的组分。
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