公开(公告)号：US06671028B1

公开(公告)日：2003-12-30

申请号：US08340816

申请日：1994-11-17

申请人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

发明人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

IPC分类号： G02F1141

CPC分类号： C09K19/0225 ,  C09K19/126 ,  C09K19/3458 ,  C09K19/586 ,  C09K2019/123 ,  G02F1/141

摘要： A liquid crystal display cell comprising a chiral ferroelectric smectic liquid crystal layer whose helix structure is influenced by the action of an electric field such that its optical anisotropy alters; a pair of transparent plates between which the liquid crystal is disposed and which have a surface structure for aligning the molecule of the liquid crystal and are provided with electrodes to produce an electric field therein; and one polarizer each before and after the liquid crystal, such that a ratio d/p of the thickness d of the liquid crystal layer to the pitch height p of the helical twisting is greater than 5, the smectic tilt angle &thgr;o between 0.39 radians and 0.87 radians and the product d·&thgr;2·&Dgr;n·1/&lgr; (phase factor) of the thickness d, the square of the tilt angle &thgr;°, the value of the birefringence &Dgr;n and the reciprocal of the wavelength &lgr; of light bending is greater than 0.45 radians2.

摘要翻译： 一种液晶显示单元，其特征在于，具有旋光结构受到电场作用的影响而使光学各向异性发生变化的手性铁电体层流液晶层; 一对透明板，液晶配置在该透明板之间，并具有用于使液晶分子对准的表面结构，并具有电极以在其中产生电场; 和液晶之前和之后的一个偏振片，使得液晶层的厚度d与螺旋扭转的间距高度p的比率d / p大于5，在0.39弧度之间的近晶倾角θo和 0.87弧度，产品d.theta <2> .Deltan.1 /λ（相位因子）的厚度d，倾斜角θ°的平方，双折射Deltan的值和光的波长λ的倒数 弯曲大于0.45弧度<2>。

公开(公告)号：US5770109A

公开(公告)日：1998-06-23

申请号：US862858

申请日：1997-05-23

申请人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

发明人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

IPC分类号： C09K19/54 ,  C09K19/02 ,  C09K19/12 ,  C09K19/34 ,  C09K19/58 ,  G02F1/13 ,  G02F1/137 ,  G02F1/141 ,  G02F1/1333

CPC分类号： C09K19/0225 ,  C09K19/126 ,  C09K19/3458 ,  C09K19/586 ,  G02F1/141 ,  C09K2019/123

摘要： A liquid crystal display cell comprising a chiral ferroelectric smectic liquid crystal layer whose helix structure is influenced by the action of an electric field such that its optical anisotropy alters; a pair of transparent plates between which the liquid crystal is disposed and which have a surface structure for aligning the molecule of the liquid crystal and are provided with electrodes to produce an electric field therein; and one polariser each before and after the liquid crystal: such ratio d/p of the thickness d of the liquid crystal layer to the pitch height p of the helical twisting is greater than 5, the smectic tilt angle .theta..sub.o is being between 22.5 .degree. and 50.degree. and the product d..theta..sub.o.sup.2..DELTA.n.1/.lambda. (phase factor) of the thickness d, the square of the tilt angle .theta..sub.o, the value of the birefringence .DELTA.n and the reciprocal of the wavelength .lambda. of light bedding is greater than 0.45 .mu.m.

摘要翻译： 一种液晶显示单元，其特征在于，具有旋光结构受到电场作用的影响而使光学各向异性发生变化的手性铁电体层流液晶层; 一对透明板，液晶配置在该透明板之间，并具有用于使液晶分子对准的表面结构，并具有电极以在其中产生电场; 和液晶之前和之后的一个偏振器：液晶层的厚度d与螺旋扭转的间距高度p之比d / p大于5，近晶倾角θo在22.5°之间 和50°，产品d。 θo2。 厚度d的DELTA n.1 /λ（相位因子），倾斜角θo的平方，双折射率DELTA n的值和轻质床上的波长λ的倒数大于0.45μm。

公开(公告)号：US5676880A

公开(公告)日：1997-10-14

申请号：US486610

申请日：1995-06-07

申请人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

发明人： Leonid A. Beresnev ,  Nina I. Chernova ,  Vladimir G. Chigrinov ,  Dmitry I. Dergachev ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Boris I. Ostrovskiv ,  Arnold Z. Rabinovich ,  Evgeniv P. Pozhidaev ,  Martin Schadt ,  Victor V. Titov

IPC分类号： C09K19/58 ,  G02F1/141 ,  C09K19/12 ,  C07C69/76

CPC分类号： G02F1/141 ,  C09K19/586

摘要： A liquid crystal display cell comprising a chiral ferroelectric smectic liquid crystal layer whose helix structure is influenced by the action of an electric field such that its optical anisotropy alters; a pair of transparent plates between which the liquid crystal is disposed and which have a surface structure for aligning the molecule of the liquid crystal and are provided with electrodes to produce an electric field therein; and one polariser each before and after the liquid crystal: such ratio d/p of the thickness d of the liquid crystal layer to the pitch height p of the helical twisting is greater than 5, the smectic tilt angle .theta..sub.o is being between 22.5.degree. and 50.degree. and the product d.multidot..theta..sub.o.sup.2 .multidot..DELTA.n.multidot.l/.lambda. (phase factor) of the thickness d, the square of the tilt angle .theta..sub.o, the value of the birefringence .DELTA.n and the reciprocal of the wavelength .lambda. of light bedding is greater than 0.45 .mu.m.

摘要翻译： 一种液晶显示单元，其特征在于，具有旋光结构受到电场作用的影响而使光学各向异性发生变化的手性铁电体层流液晶层; 一对透明板，液晶配置在该透明板之间，并具有用于使液晶分子对准的表面结构，并具有电极以在其中产生电场; 和液晶之前和之后的一个偏振器：液晶层的厚度d与螺旋扭转的间距高度p之比d / p大于5，近晶倾角θo在22.5°之间 和50°以及厚度d的乘积dxθo2x DELTA nxl /λ（相位因子），倾斜角θo的平方，双折射率DELTA n的值和轻床垫的波长λ的倒数更大 超过0.45亩。

公开(公告)号：US5242619A

公开(公告)日：1993-09-07

申请号：US883245

申请日：1992-05-07

申请人： Richard Buchecker ,  Nina I. Chernova ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Olga S. Petrashevich ,  Evgeniy P. Pozhidaev ,  Arnold Z. Rabinovich ,  Martin Schadt

发明人： Richard Buchecker ,  Nina I. Chernova ,  Alexander V. Ivashchenko ,  Marina V. Loseva ,  Olga S. Petrashevich ,  Evgeniy P. Pozhidaev ,  Arnold Z. Rabinovich ,  Martin Schadt

IPC分类号： C09K19/12 ,  C09K19/20 ,  C09K19/34

CPC分类号： C09K19/2028 ,  C09K19/126 ,  C09K19/3441

摘要： Optically active compounds of the formula ##STR1## wherein rings A, B and C each independently are unsubstituted or each are 1,4-phenylene substituted with at least one of halogen-, cyano-, methyl- or methoxy in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; R.sup.1 is a radical of an optically active terpene alcohol after cleavage of the hydroxy group or a group --(CH.sub.2).sub.m --C*HX.sup.1 --R.sup.3 ; R.sup.2 is a radical of an optically active terpene alcohol after cleavage of the hydroxy group or a group --(CH.sub.2).sub.n --C*HX.sup.2 --R.sup.4 ; m and n each independently stand for the number O or 1: C* denotes a chiral carbon atom; X.sup.1 and X.sup.2 each independently are fluorine, chlorine, cyano, methyl or methoxy; R.sup.3 and R.sup.4 each independently denote a group R, phenyl or phenyl substituted with R, with the proviso that R.sup.3 is different from X.sup.1 and R.sup.4 is different from X.sup.2 ; R is an alkyl group in which optionally one methylene group is replaced by oxygen and/or optionally one group CH--CH is replaced by a group C.dbd.C; with the proviso that R.sup.1 and R.sup.2 are not simultaneously 2-alkyl when rings A, B and C together are p-terphenyl,as well as liquid crystalline mixtures and their use for electro-optical purposes.

摘要翻译： 式I的光学活性化合物其中环A，B和C各自独立地是未取代的或各自是被至少一个卤素，氰基，甲基或甲氧基取代的1,4-亚苯基，其中任选地1个CH 基团或2个CH基团被氮取代; R1是羟基或 - （CH2）m-C * HX1-R3基团裂解后的光学活性萜烯醇基团; R2是羟基或 - （CH2）n-C * HX2-R4基团裂解后的光学活性萜烯醇基团; m和n各自独立代表数字O或1：C *表示手性碳原子; X1和X2各自独立地为氟，氯，氰基，甲基或甲氧基; R3和R4各自独立地表示基团R，苯基或被R取代的苯基，条件是R3不同于X1，R4不同于X2; R是一个烷基，其中任选的一个亚甲基被氧代替，和/或任选一个CH-CH被C = C组取代; 条件是当环A，B和C一起是对三联苯时，R1和R2不同时为2-烷基，以及液晶混合物及其用于电光目的。