公开(公告)号：US06544604B2

公开(公告)日：2003-04-08

申请号：US09925484

申请日：2001-08-10

申请人： Shuichi Matsui ,  Yasuyuki Sasada ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Katsuyuki Kawano ,  Yasuhiro Kubo ,  Etsuo Nakagawa ,  Mayumi Furuya

发明人： Shuichi Matsui ,  Yasuyuki Sasada ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Katsuyuki Kawano ,  Yasuhiro Kubo ,  Etsuo Nakagawa ,  Mayumi Furuya

IPC分类号： C09K1934

CPC分类号： C09K19/46 ,  C09K19/20 ,  C09K19/3001 ,  C09K19/3066 ,  C09K19/42 ,  C09K19/44 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3027 ,  Y10T428/10

摘要： The present invention provides a liquid crystalline compound having a difluoropropyleneoxy group as a bonding group, which is represented by Formula (1): wherein R1 and R2 each independently represent hydrogen, halogen, a cyano group or an alkyl group having 1 to 20 carbon atoms; rings A1 to A5 each independently represent a 1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group; Z1 to Z4 each independently represent a single bond, —CH2CH2—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —C≡C—, —CF2O— or —OCF2—; Y1, Y2, Y3 and Y4 each independently represent hydrogen or fluorine; and k, l, m and n each independently represent 0 or 1. This liquid crystalline compound has a large absolute value (|&Dgr;&egr;|) of a dielectric anisotropy and shows a relatively small refractive anisotropy. The present invention further provides a liquid crystal composition comprising this compound which makes it possible to drive display elements of various modes at a low voltage, and a liquid crystal display element containing this liquid crystal composition.

摘要翻译： 本发明提供具有二氟亚丙氧基作为键合基团的液晶化合物，其由式（1）表示：其中R 1和R 2各自独立地表示氢，卤素，氰基或具有1至20个碳原子的烷基 ; 环A1至A5各自独立地表示1,4-亚环己基，1,4-亚环己基或1,4-亚苯基; Z 1至Z 4各自独立地表示单键，-CH 2 CH 2 - ， - CH 2 O - ， - OCH 2 - ， - COO - ， - OCO-， - CH = CH-，-C = C - ， - CF 2 O-或-OCF 2 - Y 1，Y 2，Y 3和Y 4各自独立地表示氢或氟; 并且k，l，m和n各自独立地表示0或1.该液晶化合物的介电各向异性的绝对值（| DELTAepsi |）大，折射率各向异性相对较小。 本发明还提供一种包含该化合物的液晶组合物，其可以驱动低电压的各种模式的显示元件，以及含有该液晶组合物的液晶显示元件。

公开(公告)号：US06500503B2

公开(公告)日：2002-12-31

申请号：US09842254

申请日：2001-04-26

申请人： Koichi Shibata ,  Shuichi Matsui ,  Hiroyuki Tekeuchi ,  Katsuyuki Kawano ,  Yasuhiro Kubo ,  Etsuo Nakagawa

发明人： Koichi Shibata ,  Shuichi Matsui ,  Hiroyuki Tekeuchi ,  Katsuyuki Kawano ,  Yasuhiro Kubo ,  Etsuo Nakagawa

IPC分类号： C09K1930

CPC分类号： C07D239/26 ,  C07C17/16 ,  C07C17/18 ,  C07C17/2635 ,  C07C25/18 ,  C07C25/24 ,  C07C45/29 ,  C07C45/513 ,  C07C255/50 ,  C07C255/54 ,  C07C2601/14 ,  C07D319/06 ,  C07D339/08 ,  C09K19/3001 ,  C09K19/3028 ,  C09K19/3402 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3422 ,  Y10T428/10 ,  C07C22/08 ,  C07C49/813 ,  C07C47/24

摘要： Liquid crystalline compounds are disclosed which have large dielectric anisotropy and relatively low viscosity, and which are represented by formula (1) wherein R1 represents hydrogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or —CH═CH— and one or more hydrogen may be replaced by halogen; R2 represents hydrogen, cyano, halogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or —CH═CH— and one or more hydrogen may be replaced by halogen; L represents halogen or hydrogen; A1, A2, A4 and A5 each independently represent trans-1,4-cyclohexylene or 1,4-phenylene, one or more —CH2— in the trans-1,4-cyclohexylene may be replaced by oxygen or sulfur, one or more ═CH— in the 1,4-phenylene may be replaced by nitrogen, and one or more hydrogen in the 1,4-phenylene ring may be replaced by halogen; A3represents trans-1,4-cyclohexylene in which one or more —CH2— may be replaced by oxygen or sulfur; Z1,Z2,Z3 and Z4 each independently represent —COO—, —OCO—, —CH2CH2—, —(CH2)4—, —CH2O —, —OCH2—, —CF2O—, —OCF2— or a single bond; Q represents —CF2CH2— or —CH2CF2—; and k, l, m and n each independently represent 0 or 1 with the condition of k+l+m+n≦2. Further, liquid crystal compositions comprising at least one liquid crystalline compound of formula (1) and liquid crystal display devices composed of the compositions are disclosed.

摘要翻译： 公开了具有大介电各向异性和相对低粘度的液晶化合物，其由式（1）表示，其中R 1表示氢或C 1 -C 15烷基，其中一个或多个不相邻的亚甲基可被氧，硫或 -CH = CH-，一个或多个氢可被卤素取代; R 2表示氢，氰基，卤素或C 1 -C 15烷基，其中一个或多个不相邻的亚甲基可被氧，硫或-CH = CH-代替，并且一个或多个氢可被卤素取代; L表示卤素或氢; A1，A2，A4和A5各自独立地表示反式-1,4-亚环己基或1,4-亚苯基，反式-1,4-亚环己基中的一个或多个-CH 2 - 可被氧或硫代替，一个或多个 = 1,4-亚苯基中的CH-可以被氮代替，1,4-亚苯基环中的一个或多个氢可被卤素取代; A3表示反式-1,4-亚环己基，其中一个或多个-CH 2 - 可被氧或硫取代; Z 1，Z 2，Z 3和Z 4各自独立地表示-COO - ， - OCO - ， - CH 2 CH 2 - ， - （CH 2）4 - ， - CH 2 O - ， - OCH 2 - ， - CF 2 O-，-OCF 2-或单键; Q表示-CF 2 CH 2 - 或-CH 2 CF 2 - ; 并且k，l，m和n各自独立地表示0或1，条件为k + 1 + m + n <= 2。 此外，公开了包含至少一种式（1）的液晶化合物和由该组合物组成的液晶显示装置的液晶组合物。