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    • 20. 发明公开
    • 액정 매질
    • 液晶中间体
    • KR1020030030974A
    • 2003-04-18
    • KR1020020062060
    • 2002-10-11
    • 메르크 파텐트 게엠베하
    • 헤크마이어미카엘슐러브리히테엔겔마르틴키르쉬페어브레머마티아스
    • C09K19/42
    • C09K19/32C09K19/12C09K19/2007C09K19/3001C09K19/3003C09K19/3028C09K19/3066C09K19/3068C09K19/322C09K19/3402C09K19/3491C09K19/3494C09K19/42C09K19/46C09K2019/325C09K2019/326C09K2019/3422Y10T428/10
    • PURPOSE: Provided are a liquid-crystalline medium for display which has the very high specific resistances and low threshold voltages, and a display containing the medium. CONSTITUTION: The liquid-crystalline medium comprising a mixture of polar compounds of positive or negative dielectric anisotropy, includes one or more compounds of the formula 1 in which formula A are (a) a 1,4-cyclohexenylene or 1,4-cyclohexylene radical, in which one or two non-adjacent CH2 groups are optionally replaced by -O- or -S-, (b) a 1,4-phenylene radical, in which one or two CH groups are optionally replaced by N, (c) a radical selected from the group consisting of piperidine-1,4-diyl, 1,4-bicyclo£2.2.2|octylene, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, phenanthrene-2,7-diyl and fluorene-2,7-diyl, where the radicals (a), (b) and (c) are optionally monosubstituted or polysubstituted by halogen atoms, Z1, Z2 and Z3 are independently, -CO-O-, -O-CO-, -CF2O-, -OCF2-, -CH2O-, -OCH2-, -CH2CH2-, -(CH2)4-, -C2F4-, -CH2CF2-, -CF2CH2-, -CF-CF-, -CH-CH-, or a single bond, X is F, Cl, CN, SF5, NCS, a halogenated or unsubstituted alkyl radical having 1 to 8 carbon atoms, in which one or more CH2 groups are optionally replaced by -O- or -CH-CH- in such a way that O atoms are not linked directly to one another, a is 0, 1 or 2, b is 0, 1 or 2, and c is 0, 1 or 2, where a+b+c is
    • 目的:提供具有非常高的比电阻和低阈值电压的显示液晶介质和包含介质的显示器。 构成:包含正或负介电各向异性的极性化合物的混合物的液晶介质包括一种或多种式1的化合物,其中式A为(a)1,4-亚环己烯基或1,4-亚环己基 其中一个或两个不相邻的CH 2基团任选被-O-或-S-取代,(b)1,4-亚苯基,其中一个或两个CH基团任选地被N替代,(c) 选自哌啶-1,4-二基,1,4-二环{2.2.2 |亚辛基,萘-2,6-二基,十氢萘-2,6-二基,1,2,3, 四氢化萘-2,6-二基,菲-2,7-二基和芴-2,7-二基,其中基团(a),(b)和(c)任选被卤素原子单取代或多取代,Z 1 ,Z2和Z3独立地为-CO-O-,-O-CO-,-CF2O-,-OCF2-,-CH2O-,-OCH2-,-CH2CH2-, - (CH2)4-,-C2F4-, -CH2CF2-,-CF2CH2-,-CF-CF-,-CH-CH-或单键,X是F,Cl,CN,SF5,NCS,卤代或未取代的烷基 1个具有1至8个碳原子的基团,其中一个或多个CH 2基团任选被-O-或-CH-CH-取代,使得O原子彼此不直接连接,a是0,1或 2,b为0,1或2,c为0,1或2,其中a + b + c为<= 3。