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    • 1. 发明授权
    • Liquid crystal composition and electro-optic display device
    • 液晶组成和电光显示装置
    • US5776366A
    • 1998-07-07
    • US741720
    • 1996-10-31
    • Yoshitaka TomiTetsuya MatsushitaFusayuki TakeshitaKatsuyuki MurashiroEtsuo Nakagawa
    • Yoshitaka TomiTetsuya MatsushitaFusayuki TakeshitaKatsuyuki MurashiroEtsuo Nakagawa
    • G02F1/13C09K19/02C09K19/30C09K19/46C09K19/58C09K19/52
    • C09K19/586C09K19/0208C09K19/3001C09K19/3003C09K19/46C09K2019/0444
    • A chiral, nematic liquid crystal composition suitable to STN-LCD, having superior steepness, rapid response and being able to prevent occurrence of high order and low order domain of LCD, which composition contains as a first component, at least one compound expressed by the formula (1) ##STR1## as a second component, at least one compound expressed by the formula (2) ##STR2## and as a third component, at least one compound of benzonitrile group, ##STR3## and further having a chiral dopant as a fourth component. In the above formulas, R.sup.1 and R.sup.2 each represent a linear alkyl group of 1 to 10 carbon atoms, A and B each represent trans-1,4-cyclohexylene or 1,4-phenylene, and R.sup.3 represents a linear alkyl group of 1 to 10 carbon atoms, or a group wherein an optional --CH.sub.2 -- or two or more not adjacent --CH.sub.2 --s present in the above group are replaced by --O-- or --CH=CH--; X.sup.1 and X.sup.2 each independently represent H or F; C represents --COO--, --C.sub.2 H.sub.4 --, trans-1,4-cyclohexylene or 1,4-phenylene; and n represents 0 or 1, and as a fourth component, a chiral dopant in a quantity in which a ratio (d/p) of the thickness (d.mu.m) of a liquid crystal layer in a liquid crystal cell to be filled with the liquid crystal composition to the helical pitch thereof (p.mu.m) is 0.03 to 2.0.
    • 适用于STN-LCD的手性向列型液晶组合物,其具有优异的陡度,快速响应性并且能够防止LCD的高阶和低阶畴的发生,该组合物含有作为第一组分的至少一种化合物 式(1)作为第二组分的至少一种化合物作为第二组分,至少一种由式(2)表示的化合物(2)和作为第三组分的至少一种苄腈基化合物,< IMAGE> 3),并且还具有手性掺杂剂作为第四组分。 在上式中,R 1和R 2各自表示1〜10个碳原子的直链烷基,A和B各自表示反式-1,4-亚环己基或1,4-亚苯基,R3表示1〜 10个碳原子,或其中存在于上述基团中的任选的-CH 2 - 或两个或更多个不相邻的-CH 2 -S取代为-O-或-CH = CH-的基团; X1和X2各自独立地表示H或F; C表示-COO - , - C 2 H 4 - ,反式-1,4-亚环己基或1,4-亚苯基; n表示0或1,作为第四成分的手性掺杂剂,其中液晶单元中待填充的液晶层的厚度(dμm)的比值(dμm) 液晶组合物的螺旋间距(μm)为0.03〜2.0。
    • 3. 发明授权
    • Liquid crystal composition and liquid crystal display device
    • 液晶组成和液晶显示装置
    • US5837161A
    • 1998-11-17
    • US822688
    • 1997-03-24
    • Yasuko SekiguchiKatsuyuki MurashiroFusayuki TakeshitaTetsuya MatsushitaEtsuo Nakagawa
    • Yasuko SekiguchiKatsuyuki MurashiroFusayuki TakeshitaTetsuya MatsushitaEtsuo Nakagawa
    • G02F1/13C09K19/30C09K19/34C09K19/42C09K19/44C09K19/46C09K19/12
    • C09K19/42C09K19/44C09K19/46C09K2019/0448C09K2019/0451Y10T428/1005
    • Liquid crystal compositions having a small value of .gamma. (V.sub.10 /V.sub.90) and a small .tau. (fast response speed) in order to cope especially with high speed response, while satisfying various characteristics required of STN display mode. These compositions comprise at least one compound expressed by formula (I) as a first component; expressed by any one of formulas (II-a) to (II-d) as a second component; and expressed by formula (III) or (IV) as a third component; and as a fourth component, a chiral component in the amount necessary for maintaining the ratio d/P of the cell thickness d (.mu.m) to the pitch length of twist P (.mu.m) in the range of 0.4 to 0.6 when the liquid crystal composition is used for liquid crystal display devices. ##STR1## wherein R.sup.1 to R.sup.9 represent an alkyl group having 1 to 10 carbon atoms; Z.sup.0 to Z.sup.4 represent, for example, --CH.sub.2 CH.sub.2 --; A.sup.1 to A.sup.4, B, C, E, and G independently represent, for example, 1,4-cyclohexylene or 1,4-phenylene; D represents 1,4-cyclohexylene or 1,3-pyrimidine-2,5-diyl; Q.sup.1 represents H or F; and q and m are independently 0 or 1.
    • 在满足STN显示模式所要求的各种特性的同时,为了特别应对高速响应,具有较小的伽马值(V10 / V90)和小的tau(快速响应速度)的液晶组合物。 这些组合物包含至少一种由式(I)表示的化合物作为第一组分; 由式(II-a)至(II-d)中的任一个表示作为第二组分; 并由式(III)或(IV)表示为第三组分; 作为第四成分,将液体厚度d(μm)的比d / P与捻数P(μm)的间距长度保持在0.4〜0.6的范围内所需的量的手性成分, 液晶组合物用于液晶显示装置。 (II-c)(II-c)(II-c)(II-c)(II-d)R6(B)Z2(C)R7(Ⅲ) R8(D)Z3(E)Z4(G)R9(IV)其中R1至R9表示具有1-10个碳原子的烷基; Z 0〜Z 4表示例如-CH 2 CH 2 - ; A1至A4,B,C,E和G独立地表示例如1,4-亚环己基或1,4-亚苯基; D代表1,4-亚环己基或1,3-嘧啶-2,5-二基; Q1表示H或F; q和m独立地为0或1。
    • 6. 发明授权
    • Pyrimidine derivative, liquid crystal composition comprising the derivative, and liquid crystal display device fabricated by using the composition
    • 嘧啶衍生物,包含该衍生物的液晶组合物和使用该组合物制造的液晶显示装置
    • US06326065B1
    • 2001-12-04
    • US09203671
    • 1998-12-01
    • Yasuhiro HasebaShuichi MatsuiKazutoshi MiyazawaHiroyuki TakeuchiYoshitaka TomiFusayuki TakeshitaEtsuo Nakagawa
    • Yasuhiro HasebaShuichi MatsuiKazutoshi MiyazawaHiroyuki TakeuchiYoshitaka TomiFusayuki TakeshitaEtsuo Nakagawa
    • C09K1930
    • Liquid crystalline compounds having a comparatively high voltage holding ratio, high &Dgr;n and high &Dgr;&egr;, and excellent miscibility with known liquid crystalline compounds at low temperatures. The novel compounds have the formula (1) wherein R represents hydrogen atom or an alkyl group having 1 to 20 carbon atoms; n1 and n2 are independently 0, 1, or 2 provided that the sum of n1 and n2 is 1 or 2; ring A and ring B independently represent 1,4-phenylene, fluorine substituted 1,4-phenylene expressed by the formula (a) in the specification or 1,4-cyclohexylene provided that at least one of ring A and ring B is fluorine substituted 1,4-phenylene expressed by the formula (a); Za, Zb, and Zc independently represent single bond, —CH2CH2—, —COO—, —CF2O—, or —CH2CH2CH2CH2—; Q1, Q2, Q3, Q4, Q5, Q6, and Q7 independently represent hydrogen atom, a halogen atom, or methyl group provided that when at least one of Za, Zb, and Zc is —CH2CH2—, then Q2 is fluorine atom, and that when Za, Zb, and Zc are all single bonds, then Q1, Q2, Q3, Q4, Q5, Q6, and Q7 independently represent hydrogen atom or fluorine atom; Y represents hydrogen atom, a halogen atom, or a halogenated alkyl group having 1 to 5 carbon atoms; and each atom constituting this compound may be replaced by its isotope.
    • 具有比较高的电压保持率,高DELTAn和高DELTAepsi的液晶化合物,以及在低温下与已知液晶化合物的优异的混溶性。 新化合物具有式(1)其中R表示氢原子或具有1至20个碳原子的烷基; n1和n2独立地为0,1或2,条件是n1和n2的和为1或2; 环A和环B独立地表示说明书中所示的1,4-亚苯基,由式(a)表示的氟取代的1,4-亚苯基或1,4-亚环己基,条件是环A和环B中的至少一个为氟取代的 由式(a)表示的1,4-亚苯基; Za,Zb和Zc独立地表示单键,-CH2CH2-,-COO-,-CF2O-或-CH2CH2CH2CH2-; Q1,Q2,Q3,Q4,Q5,Q6和Q7独立地表示氢原子,卤素原子或甲基,条件是当Za,Zb和Zc中的至少一个是-CH 2 CH 2 - 时,则Q2是氟原子, 当Za,Zb和Zc都是单键时,Q1,Q2,Q3,Q4,Q5,Q6和Q7独立地表示氢原子或氟原子; Y表示氢原子,卤素原子或碳原子数1〜5的卤代烷基; 并且构成该化合物的每个原子可以被其同位素代替。
    • 7. 发明授权
    • Polyhaloalkyl ether derivatives as well as liquid crystal compositions and liquid crystal display elements containing them
    • 多卤烷基醚衍生物以及含有它们的液晶组合物和液晶显示元件
    • US06187223B1
    • 2001-02-13
    • US09335783
    • 1999-06-18
    • Tugumiti AndouKoichi ShibataShuichi MatsuiKazutoshi MiyazawaHiroyuki TakeuchiYasusuke HisatsuneFusayuki TakeshitaEtsuo NakagawaKatsuhiko KobayashiYoshitaka Tomi
    • Tugumiti AndouKoichi ShibataShuichi MatsuiKazutoshi MiyazawaHiroyuki TakeuchiYasusuke HisatsuneFusayuki TakeshitaEtsuo NakagawaKatsuhiko KobayashiYoshitaka Tomi
    • C09K1930
    • C09K19/04C07C43/225C07C69/017C07C69/753C07C69/76C07C2601/14C09K19/30C09K19/3001C09K19/3066C09K19/3068C09K19/3098C09K19/46Y10T428/10
    • A compound expressed by the general formula (1): wherein R1 denotes an alkyl group having from 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by oxygen atoms or —CH═CH— and one or more hydrogen atoms in said group may be replaced by flourine or chlorine atoms, with the proviso that two or more methylene groups may not be continuously replaced by oxygen atoms, Y1 denotes an alkoxy group having 1 to 5 carbon atoms, in which at least one hydrogen atom is replaced by a fluorine atom and one or more hydrogen atoms may be further replaced by chlorine atoms, Z1, Z2 and Z3 each independently denote a covalent bond, —CH2CH2—, —CH═CH—, —COO— or —CF2)—, with the proviso that at least one of Z1, Z2 and Z3 is —COO— or —CF2O—, rings A1, A2, A3 and A4 each independently denote trans-1,4-cyclohexylene, 3-cyclohexen-1,4-ylene, 3-fluoro-3-cyclohexen-1,4-ylene, pyrimidine-2,5-diyl, 1,3-dioxan-2,5-diyl, trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene, or 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and m and n denote 0 or 1, with the proviso that when Z1, Z2 or Z3 is —CF2O—, then at least two groups selected from rings A1, A2, A3 and A4 directly bonded to —CF2O— are both 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and any of the rings A1, A2 and A3 bonded with the carbon atoms of —CF2O— is 1,4-phenylene in which at least one hydrogen atom is replaced by fluorine or chlorine atoms.
    • 由通式(1)表示的化合物:其中R1表示具有1至20个碳原子的烷基,其中所述基团中的一个或多个亚甲基可被氧原子或-CH = CH-代替,并且一个或多个 所述基团中的氢原子可以被氟或氯原子代替,条件是两个或更多个亚甲基可以不被氧原子连续替代,Y1表示具有1至5个碳原子的烷氧基,其中至少一个氢 原子被氟原子取代,一个或多个氢原子可以进一步被氯原子取代,Z 1,Z 2和Z 3各自独立地表示共价键,-CH 2 CH 2 - , - CH = CH - , - COO-或-CF 2) - ,条件是Z1,Z2和Z3中的至少一个为-COO-或-CF2O-,环A1,A2,A3和A4各自独立地表示反式-1,4-亚环己基,3-环己烯-1,4 亚苯基,3-氟-3-环己烯-1,4-亚基,嘧啶-2,5-二基,1,3-二恶烷-2,5-二基,反式-1-硅烷-1,4-亚环己基,反式 -4-硅烷-1,4-亚环己基,o 其中一个或多个氢原子可以被氟原子或氯原子代替的1,4-亚苯基,m和n表示0或1,条件是当Z1,Z2或Z3为-CF2O-时,则至少两个 与-CF 2 O-直接键合的环A1,A2,A3和A4所选择的基团均为1,4-亚苯基,其中一个或多个氢原子可以被氟原子或氯原子代替,任何环A1,A2和 与-CF 2 O-的碳原子键合的A 3是其中至少一个氢原子被氟或氯原子代替的1,4-亚苯基。