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    • 21. 发明授权
    • Liquid crystal composition
    • 液晶组成
    • US06372308B1
    • 2002-04-16
    • US09521956
    • 2000-03-09
    • Yasue YoshiokaMasahiro JohnoTomoyuki YuiTakahiro Matsumoto
    • Yasue YoshiokaMasahiro JohnoTomoyuki YuiTakahiro Matsumoto
    • C09K1912
    • C09K19/0266C09K19/2021Y10T428/10
    • A liquid crystal composition includes (1) an anti-ferroelectric liquid crystal compound of formula (1) and (2) a ferrielectric liquid crystal compound or racemic compound thereof. The composition ratio of (1) to (2) is in the range extending from a value which extends from within 5 mol % of the boundary compositional ratio on the anti-ferroelectric phase side and to within 25 mol % of the boundary compositional ratio on the ferrielectric phase side. The boundary compositional ratio is obtained on the basis of a liquid crystal phase diagram prepared on the basis of conoscopic image observations obtained by changing the mixing ratio of (1) and (2). The liquid crystal composition has the following properties: (b) an optical response in a positive voltage region and a negative voltage region and free or substantially free of hysteresis; and (c) excellent alignment stability. The liquid crystal composition is substantially free from sticking, is excellent in alignment and alignment stability and exhibits a V-letter-shaped optical response so that it can be used in a highly reliable active matrix liquid crystal display device.
    • 液晶组合物包括(1)式(1)的反铁电液晶化合物和(2)电介质液晶化合物或其外消旋化合物。 (1)〜(2)的组成比在从反铁电相侧的边界成分比例的5摩尔%以内的值延伸到边界成分比的25摩尔%以下的范围内 电介质相侧。 基于通过改变(1)和(2)的混合比获得的虹膜图像观察准备的液晶相图获得边界组成比。 液晶组合物具有以下性质:(b)在正电压区域和负电压区域中的光学响应,并且具有自由或基本上没有迟滞; 和(c)极好的取向稳定性。 液晶组合物基本上没有粘附,对准和取向稳定性优异,呈V字形的光学响应,因此可用于高可靠性的有源矩阵液晶显示装置。
    • 23. 发明申请
    • Optically active compound and liquid crystal composition containing the compound
    • 含有该化合物的光学活性化合物和液晶组合物
    • US20050260358A1
    • 2005-11-24
    • US10614296
    • 2003-07-08
    • Yuki MotoyamaTakashi AokiMasahiro Johno
    • Yuki MotoyamaTakashi AokiMasahiro Johno
    • G02F1/13C07C69/76C07C69/82C07C69/94C09K19/54C09K19/58C09K19/30C09K19/12C09K19/32
    • C09K19/586C07C69/94Y10T428/10
    • An optically active compound of the general formula (1), wherein n is an integer of 4 to 8, X is -Ph-COO-Ph-Ph-, -Ph-Ph-COO-Ph-, -Ph-OC-Ph-Ph-, -Ph-Ph-OC-Ph-, -Ph-Ph-Ph-, -Cy-COO-Ph-Ph-, -Ph-Ph-OC-Cy-, -Ph-OC-Ph-COO-Ph-, -Ph-OC-Cy-COO-Ph-, -Ph-OC-Np-COO-Ph-, -Np-OC-Ph- or -Ph-COO-Np- in which -Ph- is a 1,4-phenylene group, -Cy- is a trans-1,4-cyclohexylene group and -Np- is a 2,6-naphthylene group, and C* is an asymmetric carbon, and a nematic liquid crystal composition containing the above optically active compound. According to the present invention, there is provided a nematic liquid crystal composition containing the optically active compound having a helical twisting power (HTP) of 10 or more and giving a chiral dopant for a nematic liquid crystal, which chiral dopant has a property that the pitch of its induced helix decreases in length with an increase in temperature.
    • 通式(1)的光学活性化合物,其中n为4〜8的整数,X为-Ph-COO-Ph-Ph-,-Ph-Ph-COO-Ph-,-Ph-OC-Ph -Ph-Ph-OC-Ph-,-Ph-Ph-Ph-,-Cy-COO-Ph-Ph-,-Ph-Ph-OC-Cy-,-Ph-OC-Ph-COO -Ph-,-Ph-OC-Cy-COO-Ph-,-Ph-OC-Np-COO-Ph-,-Np-OC-Ph-或-Ph-COO-Np-,其中-Ph-为 1,4-亚苯基,-Cy-是反-1,4-亚环己基,-Np-是2,6-亚萘基,C *是不对称碳,并且含有上述的向列型液晶组合物 光学活性化合物。 根据本发明,提供了一种向列型液晶组合物,其含有螺旋扭转力(HTP)为10以上的光学活性化合物,并赋予向列型液晶的手性掺杂剂,该手性掺杂剂具有以下性质: 其诱导螺旋的间距随着温度的升高而降低。
    • 24. 发明授权
    • Optically active compound and nematic liquid crystal composition containing the compound
    • 含有该化合物的光学活性化合物和向列型液晶组合物
    • US06805921B2
    • 2004-10-19
    • US10212230
    • 2002-08-06
    • Yasumasa NorisueYuki MotoyamaMasahiro Johno
    • Yasumasa NorisueYuki MotoyamaMasahiro Johno
    • C09K1920
    • C09K19/586Y10T428/10
    • An optically active compound of the following general formula (1), wherein A is —C≡C— or —COO—, each of R1 and R2 is independently CnH2n+1—, (C2H5)2CHCH2C*H(CH3)OOC—, CmH2m+1C*H(CH3)OOC— or C6H5C*H(CH3)OOC— in which n is an integer of 2 to 5, m is an integer of 5 to 9, C6H5— is phenyl group, and C* is an asymmetric carbon, provided that there is no case where R1 and R2 are together CnH2n+1— or C6H5C*H(CH3)OOC— and that when both R1 and R2 are CmH2m+1C*H(CH3)OOC—, m in CmH2m+1C*H(CH3)OOC— represented by R1 and m in CmH2m+1C*H(CH3)OOC— represented by R2 may be different integers. The optically active compound of the present invention is excellently valuable as a chiral dopant since it has properties that its helical twisting power (HTP) is at least 9, that a helical pitch induced decreases with an increase in temperature and further that its birefringence (&Dgr;n) is large.
    • 下列通式(1)的光学活性化合物,其中A为-C = C-或-COO-,R1和R2各自独立地为C n H 2n + 1,(C 2 H 5)2 CHCH 2 C * H(CH 3)OOC-, CmH2m + 1C * H(CH3)OOC-或C6H5C * H(CH3)OOC-,其中n为2〜5的整数,m为5〜9的整数,C6H5-为苯基,C *为 只要不存在R 1和R 2一起为C n H 2n + 1或C 6 H 5 C * H(CH 3)OOC-的情况,并且当R 1和R 2均为C m H 2m + 1C * H(CH 3)OOC-时,m C m H 2 m 由R1表示的+ 1C * H(CH3)OOC-,R2表示的CmH2m + 1C * H(CH3)OOC-中的m可以是不同的整数。本发明的光学活性化合物作为手性掺杂剂是非常有价值的,因为它 具有其螺旋扭转功率(HTP)至少为9的性质,螺旋桨距诱导随着温度的升高而降低,并且进一步其双折射(Deltan)大。
    • 26. 发明授权
    • Optically active compound and liquid crystal composition containing the compound
    • 含有该化合物的光学活性化合物和液晶组合物
    • US06835427B2
    • 2004-12-28
    • US10780705
    • 2004-02-19
    • Yuki MotoyamaTakakiyo MineMasahiro Johno
    • Yuki MotoyamaTakakiyo MineMasahiro Johno
    • C09K1958
    • C09K19/586Y10T428/10
    • An optically active compound containing 5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-bi-2-naphthol of the general formula (1) as an asymmetric source, wherein n is an integer of 1 to 10, Y is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, a phenyl group substituted with an alkyl group having 1 to 5 carbon atoms or a phenyl group substituted with an alkoxy group having 1 to 4 carbon atoms, X is a single bond (—), —OOC— or —OCH2—, and each of A and B is a substituent formed by specifically combining rings selected from cyclohexane, benzene, pyrimidine, naphthalene, dioxane, etc., including mutual bonding forms of rings so that the substituent has 1 to 4 rings, the optically active compound characteristically having a large helical twisting power (HTP) of 50 or more and being useful as a chiaral dopant, the chiral dopant being capable of adjusting a helical pitch when only added in a small amount, so that the deterioration of performances of a base liquid crystal can be prevented.
    • 一种含有作为不对称来源的通式(1)的5,5',6,6',7,7',8,8'-八氢-1,1'-双-2-萘酚的光学活性化合物,其中 n为1〜10的整数,Y为氢原子,碳原子数为1〜5的烷基,苯基,被碳原子数为1〜5的烷基取代的苯基或被 具有1至4个碳原子的烷氧基,X是单键( - ),-OOC-或-OCH 2 - ,A和B各自是通过特别结合选自环己烷,苯,嘧啶,萘, 二恶烷等,包括环的相互键合形式,使得取代基具有1至4个环,旋光性化合物特征在于具有50或更大的大螺旋扭转力(HTP)并且可用作芝麻掺杂剂,手性掺杂剂 能够在仅添加少量时调节螺距,从而可以降低基极液晶的性能 防止了