公开(公告)号：EP0541128A1

公开(公告)日：1993-05-12

申请号：EP92119147.4

申请日：1992-11-09

申请人： HITACHI, LTD.

发明人： Isogai, Masato ,  Abe, Hidetoshi ,  Kitamura, Teruo ,  Ohe, Masahito

IPC分类号： G02F1/23 ,  G02F1/1335 ,  G02F1/1347

CPC分类号： G02F1/13473 ,  G02F1/133533 ,  G02F1/1393 ,  G02F1/1396 ,  G02F1/141

摘要： A color display comprising a white light source, a first color polarizer (3A), an active matrix liquid crystal cell (1), a second color polarizer (3B), the second liquid crystal cell (2A), a third color polarizer (3C), and the third liquid crystal cell (2B), wherein the active matrix liquid crystal cell (1) functions as an image forming element, wherein the second and the first liquid crystal cells (2A, 2B) have a function as an optical switch to selectively transmit the three primary colors of light depending on a particular combination of on and off thereof, and wherein by driving the above two cells (2A, 2B) in synchronization with each other, images corresponding to the primary colors of light are displayed sequentially so as to realize a full color display.

摘要翻译： 一种彩色显示器，包括白光源，第一彩色偏光片（3A），有源矩阵液晶单元（1），第二彩色偏光片（3B），第二液晶单元（2A），第三彩色偏光片 ）和第三液晶单元（2B），其中有源矩阵液晶单元（1）用作图像形成元件，其中第二和第一液晶单元（2A，2B）具有作为光学开关的功能 根据其特定的开关组合来选择性地发送三原色光，并且其中通过彼此同步地驱动上述两个单元（2A，2B），顺序地显示与原色相对应的图像 从而实现全彩显示。

公开(公告)号：EP0388960A1

公开(公告)日：1990-09-26

申请号：EP90105444.5

申请日：1990-03-22

申请人： HITACHI, LTD. ,  Takeda Chemical Industries, Ltd.

发明人： Kitamura, Teruo ,  Kondo, Katsumi ,  Sudo, Yuka ,  Matsumura, Koichi ,  Kawada, Mitsuru ,  Sugihara, Yoshihiro

IPC分类号： C07C69/94 ,  C07C69/92 ,  C07C69/708 ,  C07C327/28 ,  C07C43/215 ,  C07D237/14 ,  C07D239/26 ,  C07D239/38 ,  C09K19/10

CPC分类号： C09K19/46 ,  C07C323/20 ,  C07C327/28 ,  C09K19/126 ,  C09K19/2021 ,  C09K19/28 ,  C09K19/3402 ,  C09K19/3455 ,  C09K19/3463 ,  C09K19/44 ,  C09K2019/3422

摘要： The present invention discloses chiral liquid crystal compounds represented by the general formula I
intermediates for preparation of said compounds, liquid crystal compositions comprising said compounds, and liquid crystal optical modulators using said compositions wherein R 1 is an alkyl or alkenyl group, R 2 , R 3 and R 4 are alkyl groups, Q 1 , 0 2 and Q 3 are a single bond, a (thio)ether group, a (thio)carboxylic acid ester group, a carbonyl group or a carbonyldioxy group, M is a structure comprising six-membered 1,4-diyl groups, and n is an integer of 2-6.

摘要翻译： 本发明公开了用于制备所述化合物的通式I 中间体的手性液晶化合物，包含所述化合物的液晶组合物和使用所述组合物的液晶光学调节剂，其中R1是烷基或烯基，R2， R3和R4是烷基，Q1，Q2和Q3是单键，（硫代）醚基，（硫代）羧酸酯基，羰基或羰基二氧基，M是包含六元1 ，4-二基，n为2-6的整数。

公开(公告)号：EP0283916A3

公开(公告)日：1989-10-11

申请号：EP88104176.8

申请日：1988-03-16

申请人： HITACHI, LTD.

发明人： Kondo, Katsumi ,  Yokokura, Hisao ,  Kitamura, Teruo ,  Hanawa, Yasuo ,  Iwasaki, Kishiro ,  Nakata, Tadao ,  Isogai, Masato ,  Mukoh, Akio

IPC分类号： G02F1/137

CPC分类号： G02F1/141

摘要： There are disclosed a ferroelectric liquid crystal light-modulating device comprising a pair of base plates each provided with an electrode, at least one of which is transparent, and a light-polarizing means, said base plates being arranged with a gap therebetween to form a cell which contains a ferroelectric liquid crystal composition, which device is characterized by being such that said ferroelectric liquid crystal composition exhibits a phase sequence in which a smectic A (SA) phase is in the higher temperature side of an adjacent ferroelectric phase [smectic C* (SC*) phase] and either (a) the elastic constant (B,) in deformation of C-director in the liquid crystal layer conforms to the formula, B, > 1.0 × 10 -10 N or (b) said liquid crystal composition has a spontaneous polarization larger than 3.2 × 10 -4 C/m 2 ; and a display device using said ferroelectric liquid crystal light-modulating device.

公开(公告)号：EP0322862A2

公开(公告)日：1989-07-05

申请号：EP88121725.1

申请日：1988-12-27

申请人： HITACHI, LTD. ,  Takeda Chemical Industries, Ltd.

发明人： Kitamura, Teruo ,  Kondo, Katsumi ,  Mukoh, Akio ,  Matsumura, Koichi ,  Kawada, Mitsuru ,  Sugihara, Yoshihiro

IPC分类号： C07C69/92 ,  C07C69/90 ,  C07C69/708 ,  C07C69/76 ,  C07C69/24 ,  C07C69/96 ,  C07C69/82 ,  C07C43/205 ,  C07C59/125 ,  C07D239/34 ,  C09K19/12

CPC分类号： C07D239/26 ,  C07C43/13 ,  C07C43/1782 ,  C07C43/2055 ,  C07C53/128 ,  C09K19/126 ,  C09K19/20 ,  C09K19/2021

摘要： The invention relates to optically active compounds represented by the general formula I
wherein n, R 1 , R 2 , R 3 , R 4 ., Q 1 , Q 2 , Q 3 , and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.

摘要翻译： 本发明涉及由I worin N，R1，R2，R3，R4，Q1，Q2，Q3，和M的定义如说明书中的通式，方法和中间体其制备方法，液体表示的光学活性化合物 晶组合物，包含式I及其在电光显示器使用，交换和调制装置中的至少一种光学活性化合物。

公开(公告)号：EP0087963A3

公开(公告)日：1985-03-20

申请号：EP83301036

申请日：1983-02-25

申请人： Hitachi, Ltd. ,  MITSUBISHI KASEI CORPORATION

发明人： Mukoh, Akio ,  Kitamura, Teruo ,  Kaneko, Masaharu ,  Ozawa, Tetsuo

IPC分类号： C07C121/75 ,  C07C121/56

CPC分类号： C07C255/00 ,  C09K19/06 ,  C09K19/12 ,  C09K19/3003 ,  C09K19/3066 ,  C09K19/321 ,  C09K2019/0407

摘要： Phthalonitrile derivatives are represented by the formula (I):
wherein X and Y each represents a C1-9 alkyl or alkoxy group, The compounds are prepared by cyclisation reaction of a butadiene derivative X-CH=CH-CH-CH-Y with fumaronitrile or dicycanoacetylene, followed by oxidation or bromination. The compounds have a large negative dielectric anis- tropy, and wide liquid crystal range, and are useful, alone or with other liquid crystals, in liquid crystal display devices.
wherein R represents H,
or a halogen atom, where m is an integer of 1 to 9 and n is 0, 1 or 2, but at least one of X and Y does not represents a methyl group, and Y does not represent an alkyl or alkoxy group when X represents
and R' represents an alkyl group.

公开(公告)号：EP0069387A3

公开(公告)日：1983-05-11

申请号：EP82106027

申请日：1982-07-06

申请人： Hitachi, Ltd.

发明人： Abe, Hidetoshi ,  Mukoh, Akio ,  Kitamura, Teruo ,  Kamezawa, Norimasa ,  Hanawa, Yasuo ,  Sato, Mikio

IPC分类号： C09K03/34

CPC分类号： C09K19/58

摘要： In a liquid crystal display device produced by forming an orientation controlling film on each surface of upper and lower substrates having an electrode, placing a liquid crystal composition between said substrates, and then sealing the periphery of the substrate, the response times, particularly those at low temperatures can be reduced by using, as the aforesaid liquid crystal composition, a liquid crystal composition which is obtained by adding a material having a glass transition temperature (T g ) of -90°C or lower to a liquid crystal material base and has a To of -82°C or lower.

公开(公告)号：EP0069387A2

公开(公告)日：1983-01-12

申请号：EP82106027.4

申请日：1982-07-06

申请人： Hitachi, Ltd.

发明人： Abe, Hidetoshi ,  Mukoh, Akio ,  Kitamura, Teruo ,  Kamezawa, Norimasa ,  Hanawa, Yasuo ,  Sato, Mikio

IPC分类号： C09K3/34

CPC分类号： C09K19/58

摘要： In a liquid crystal display device produced by forming an orientation controlling film on each surface of upper and lower substrates having an electrode, placing a liquid crystal composition between said substrates, and then sealing the periphery of the substrate, the response times, particularly those at low temperatures can be reduced by using, as the aforesaid liquid crystal composition, a liquid crystal composition which is obtained by adding a material having a glass transition temperature (T g ) of -90°C or lower to a liquid crystal material base and has a To of -82°C or lower.

摘要翻译： 在通过在具有电极的上下基板的每个表面上形成取向控制膜而制备的液晶显示装置中，在所述基板之间放置液晶组合物，然后密封基板的外围，响应时间，特别是在 作为上述液晶组合物，通过使用在液晶材料基材中添加玻璃化转变温度（Tg）为-90℃以下的材料而得到的液晶组合物，可以降低低温， 到-82°C或更低。

公开(公告)号：EP0283916B1

公开(公告)日：1993-12-29

申请号：EP88104176.8

申请日：1988-03-16

申请人： HITACHI, LTD.

发明人： Kondo, Katsumi ,  Yokokura, Hisao ,  Kitamura, Teruo ,  Hanawa, Yasuo ,  Iwasaki, Kishiro ,  Nakata, Tadao ,  Isogai, Masato ,  Mukoh, Akio

IPC分类号： G02F1/137

CPC分类号： G02F1/141

公开(公告)号：EP0341713A3

公开(公告)日：1990-12-12

申请号：EP89108487.3

申请日：1989-05-11

申请人： HITACHI, LTD. ,  Takeda Chemical Industries, Ltd.

发明人： Matsumura, Koichi ,  Kawada, Mitsuru ,  Iida, Kouichi ,  Yamashita, Toshiro ,  Kondo, Katsumi ,  Mukoh, Akio ,  Kitamura, Teruo

IPC分类号： C07C69/92 ,  C09K19/20 ,  G02F1/13 ,  C07C69/82 ,  C07C69/76 ,  C07D239/34 ,  C07C69/96 ,  C09K19/12 ,  C09K19/30 ,  C09K19/34 ,  C07C43/315

CPC分类号： C09K19/3463 ,  C07D239/34 ,  C09K19/126 ,  C09K19/2021 ,  C09K19/3001 ,  C09K19/3441

摘要： The invention relates to optically active compounds represented by the general formula I
wherein m, n, Ri, R 2 , R 3 . R 4 , Q 1 , Q 2 , Q 3 , and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.

公开(公告)号：EP0351782A3

公开(公告)日：1990-04-25

申请号：EP89113158.3

申请日：1989-07-18

申请人： HITACHI, LTD.

发明人： Sudo, Yuka ,  Kondo, Katsumi ,  Kitamura, Teruo ,  Matsumura, Koichi ,  Kawada, Mitsuru ,  Sugihara, Yoshihiro

IPC分类号： C07C69/92 ,  C09K19/20 ,  C09K19/30 ,  C09K19/12 ,  C09K19/34 ,  C07C43/205 ,  C07C69/76 ,  C07C69/24 ,  C07C69/96 ,  C07C43/13 ,  C07D239/26

CPC分类号： C07D239/26 ,  C07C43/13 ,  C07C43/2055 ,  C09K19/126 ,  C09K19/20 ,  C09K19/2021 ,  C09K19/3003 ,  C09K19/3441 ,  C09K19/3463

摘要： The invention relates to optically active compounds represented by the general formula I
wherein R 1 , R 2 , R 3 , R 4 , Q 1 , Q 2 , Q 3 , and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.