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1.发明授权
公开(公告)号：US5046823A
公开(公告)日：1991-09-10
申请号：US328363
申请日：1989-03-24
Applicant: Kahoru Mori , Yuichiro Yamada , Norio Yamamoto , Masao Tokunaga , Ichiro Kawamura , Yoshiichi Suzuki , Takashi Hagiwara , Yoshihiko Aihara , Noriko Yamakawa , Shigenori Sakuma
Inventor： Kahoru Mori , Yuichiro Yamada , Norio Yamamoto , Masao Tokunaga , Ichiro Kawamura , Yoshiichi Suzuki , Takashi Hagiwara , Yoshihiko Aihara , Noriko Yamakawa , Shigenori Sakuma
CPC classification number: C09K19/2028 , C09K19/2021 , G02F1/141 , G09G3/3633 , G09G3/3681 , G09G3/3692 , G09G2310/06 , G09G2310/061
Abstract: There is disclosed herein a ferroelectric liquid crystal electro-optical apparatus of the maxtrix type comprising a liquid crystal cell having first and second electrode substrates which include n striped line electrodes and m striped column electrodes, respectively, facing at right angles each other. A ferroelectric liquid crystal is put in therebetween so as to form n by m indication picture elements. Also included in the apparatus a scanning drive device adapted to supply a scanning signal and a data signal to the n striped line electrodes and the m striped column electrodes, respectively. The ferroelectric liquid crystal shows three stable states in accordance with an application voltage and has a light transmittance with a hysteresis sufficient to a dynamic drive in accordance with increase or decrease in the application voltage in a predetermined voltage range. The scanning drive device produces a first combination signal as a signal running to variation from a voltage below a refernece voltage in a predetermined one polarity voltage range to a voltage above the reference voltage and produces a second combination signal as a signal which does not exceed the reference voltage in the range, and supplies a direct-current combination signal between the electrodes after the supply of the first and second combination signal thereto.
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公开(公告)号：US5417885A
公开(公告)日：1995-05-23
申请号：US101026
申请日：1993-08-03
Applicant: Yoshiichi Suzuki , Takashi Hagiwara , Ichiro Kawamura
Inventor： Yoshiichi Suzuki , Takashi Hagiwara , Ichiro Kawamura
CPC classification number: C09K19/0266 , C07C69/94 , C09K19/126 , C09K2019/123
Abstract: An antiferroelectric liquid crystal compound of the following formulae: ##STR1## wherein R.sup.1 and R.sup.2 each is an alkyl group of C.sub.4 - C.sub.18, Rf is CF.sub.3 or C.sub.2 F.sub.5, X is O, COO, or a single bond, and * shows an optically active carbon atom.
Abstract translation: （I）其中R 1和R 2各自为C 4 -C 18的烷基，R f为CF 3或C 2 F 5，X为（C 1 -C 6） O，COO或单键，*表示光学活性碳原子。
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公开(公告)号：US5207946A
公开(公告)日：1993-05-04
申请号：US557845
申请日：1990-07-25
Applicant: Koichi Numazawa , Noriko Yamakawa , Yoshiichi Suzuki , Ichiro Kawamura
Inventor： Koichi Numazawa , Noriko Yamakawa , Yoshiichi Suzuki , Ichiro Kawamura
IPC: C07C69/017 , C07C69/773 , C07C69/90 , C09K19/02 , C09K19/20
CPC classification number: C09K19/0266 , C07C69/017 , C07C69/90 , C09K19/2021
Abstract: A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 3 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 3 to 18 carbon atoms; X represents ##STR2## (A) and (B) each represents a group selected from the group consisting of ##STR3## and * indicates an optically active center.
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公开(公告)号：US5262086A
公开(公告)日：1993-11-16
申请号：US903953
申请日：1992-06-26
Applicant: Yoshiichi Suzuki , Horiyuki Mogamiya , Ichiro Kawamura
Inventor： Yoshiichi Suzuki , Horiyuki Mogamiya , Ichiro Kawamura
IPC: C07C69/773 , C09K19/02 , C09K19/20 , C09K19/12 , C07C69/76
CPC classification number: C09K19/0266 , C09K19/2021
Abstract: (R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; ##STR1## wherein Ra means a C.sub.5 -C.sub.14 alkyl group or a C.sub.5 -C.sub.14 alkoxy group, preferably a C.sub.5 -C.sub.14 alkyl group, Rb means a C.sub.4 -C.sub.12 normal alkyl group or a C.sub.4 -C.sub.12 branched alkyl group, X means a ##STR2## group or a ##STR3## group, Z means a fluorine containing alkyl group, preferably a trifluoromethyl group and * shows an optically active carbon.
Abstract translation: （I）表示的（S） - 对映异构体组合物具有足够高的光学纯度以在S *（3）相中显示光学三态状态; （I）其中R a表示C 5 -C 14烷基或C 5 -C 14烷氧基，优选C 5 -C 14烷基，R b表示C 4 -C 12正烷基或C 4 -C 12支链烷基，X 表示
组或 组，Z表示含氟烷基，优选三氟甲基，*表示光学活性碳。 -
公开(公告)号：US5204020A
公开(公告)日：1993-04-20
申请号：US875609
申请日：1992-04-29
Applicant: Yoshiichi Suzuki , Hiroyuki Mogamiya , Ichiro Kawamura
Inventor： Yoshiichi Suzuki , Hiroyuki Mogamiya , Ichiro Kawamura
IPC: C07C69/773 , C09K19/02 , C09K19/20
CPC classification number: C09K19/0266 , C09K19/2021
Abstract: Liquid crystal compounds represented by the formula; ##STR1## in which Ra means an alkyl group of 1-20 carbon atoms or an alkoxy group of 1-20 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 1-20 carbon atoms, an alkoxy group of 1-20 carbon atoms, or an alkanoyl methyl group having 1-20 carbon atoms in the alkyl; ##STR2## Z means a fluorinated alkyl or a fluorinated haloalkyl; m is an integer of from 1 to 3; n is an integer of from 0 to 2 where when n is 0, Y is a single bond; and * shows an optically active center, which have a larger spontaneous polarization, high speed of response and good orientation, and show tristable liquid crystal phase.
Abstract translation: 由式表示的液晶化合物; 其中R a表示1-20个碳原子的烷基或1-20个碳原子的烷氧基; Rb表示1-20个碳原子的烷基，1-20个碳原子的烷氧基或在烷基中具有1-20个碳原子的烷酰基甲基的脂族烷基，支链烷基或芳烷基; Z表示氟化烷基或氟化卤代烷基; m为1〜3的整数， n为0〜2的整数，n为0时，Y为单键， 和*表示具有较大自发极化，高响应速度和良好取向的光学活性中心，并显示出三重液晶相。
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Patent Agency Ranking
公开(公告)号：US5194179A
公开(公告)日：1993-03-16
申请号：US316195
申请日：1989-02-27
Applicant: Yoshiichi Suzuki , Ichiro Kawamura , Hiroyuki Mogamiya
Inventor： Yoshiichi Suzuki , Ichiro Kawamura , Hiroyuki Mogamiya
CPC classification number: C09K19/0266 , C09K19/20
Abstract: The invention lies particularly in novel compounds represented by the general formula; ##STR1## in which Z means CF.sub.3, CHF.sub.2, CH.sub.2 F, CClF.sub.2, CCl.sub.2 F, CHCLF, CCl.sub.3, C.sub.2 F.sub.2 or a perfluoroalkyl group of 3 or more carbon atoms, m and n are same or different with each other and represent an integral of 1-20, which are ferroelectric and chiral smetic liquid crystals of a large spontaneous polarization, a high speed of response and a good orientation, and showing a liquid crystal phase of tristable state and an electoclinic effect to be used as a liquid crystal element superior in an image display response.
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公开(公告)号：US5837163A
公开(公告)日：1998-11-17
申请号：US953783
申请日：1992-09-30
Applicant: Koichi Numazawa , Noriko Yamakawa , Yoshiichi Suzuki , Ichiro Kawamura
Inventor： Koichi Numazawa , Noriko Yamakawa , Yoshiichi Suzuki , Ichiro Kawamura
IPC: C07C69/017 , C07C69/773 , C07C69/90 , C09K19/02 , C09K19/20 , C09K19/12 , C07C69/76
CPC classification number: C09K19/0266 , C07C69/017 , C07C69/90 , C09K19/2021
Abstract: A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 3 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 3 to 18 carbon atoms; X represents ##STR2## Y represents ##STR3## (A) and (B) each represents a group selected from the group consisting of ##STR4## and ##STR5## and * indicates an optically active center.
Abstract translation: 由式（I）表示的液晶化合物：其中R 1表示具有3至18个碳原子的烷基; R2表示具有3至18个碳原子的烷基; X表示
Y表示（IMA）（A），（B）表示选自由 和 组成的组，*表示光学活动中心。 -
公开(公告)号：US5184847A
公开(公告)日：1993-02-09
申请号：US785877
申请日：1991-11-04
Applicant: Yoshiichi Suzuki , Hiroyuki Mogamiya , Ichiro Kawamura
Inventor： Yoshiichi Suzuki , Hiroyuki Mogamiya , Ichiro Kawamura
CPC classification number: C09K19/0266 , C09K19/2021
Abstract: Ferrelectric chiral smetic liquid crystal compound are provided which have the formula, for example ##STR1## wherein R is a C.sub.1-20 alkyl group.
Abstract translation: 提供了具有下式的电介质手性硅溶液化合物，例如
或 其中R是C 1-20烷基。 -
公开(公告)号：US5171471A
公开(公告)日：1992-12-15
申请号：US831195
申请日：1992-01-31
Applicant: Yoshiichi Suzuki , Takashi Hagiwara , Koichi Numazawa
Inventor： Yoshiichi Suzuki , Takashi Hagiwara , Koichi Numazawa
IPC: C07D319/06 , C09K19/02 , C09K19/34
CPC classification number: C09K19/0266 , C07D319/06 , C09K19/3402 , C09K2019/3422
Abstract: Novel ferroelectric and antiferroelectric liquid crystal compounds of the invention, which comprise those showing optically tristable states in phase S*.sub.(3), have a wide range of phase transition temperature so as to be not only preferably used solely as display element material but also mixed with any other liquid crystal to desiredly expand the above range wider and make optical response time faster.Typical compounds are represented by ##STR1## in which Z means CF.sub.3, C.sub.2 F.sub.5, CHF.sub.2, CH.sub.2 F, CClF.sub.2, CCl.sub.2 F, CF.sub.3 CCl.sub.2 or C.sub.3 F.sub.7, m' and n' are same or different with each other and each is an integer of 1-20.
Abstract translation: 包括在S *（3）相中显示光学三态的本发明的新型铁电和反铁电液晶化合物具有宽范围的相变温度，不仅优选仅用作显示元件材料，而且还混合 任何其他液晶希望扩大上述范围，使光学响应时间更快。 其中Z表示CF 3，C 2 F 5，CHF 2，CH 2 F，CClF 2，CCl 2 F，CF 3 CCl 2或C 3 F 7，m，其中Z表示CF '和n'彼此相同或不同，并且每个是1-20的整数。
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公开(公告)号：US5051527A
公开(公告)日：1991-09-24
申请号：US316831
申请日：1989-02-28
Applicant: Yoshiichi Suzuki , Takashi Hagiwara , Hiroyuki Mogamiya
Inventor： Yoshiichi Suzuki , Takashi Hagiwara , Hiroyuki Mogamiya
CPC classification number: C09K19/2021 , C09K19/0403 , C09K2019/0407 , C09K2019/0444
Abstract: The invention lies in novel ferroelectric liquid crystal compounds particularly represented by the general formulae, having a good responsibility in relation to the applied electric field and a wide range of phase transition points inclusive of the room temperature so as to be useful alone as the liquid crystal material but also to be mixed with other liquid crystal compounds for expanding the phase transition points to a desired range and making the response speed of the liquid crystal composition faster. ##STR1## In the formulae, m and n are same or different with each other and represent an integral of 1-20.
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