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公开(公告)号:US5454974A
公开(公告)日:1995-10-03
申请号:US178180
申请日:1994-01-06
IPC分类号: C07C17/00 , C07C17/26 , C07C25/24 , C07C41/00 , C07C43/188 , C07C43/192 , C07C43/225 , C07C67/00 , C07C69/75 , C07C69/753 , C07C69/76 , C07C69/773 , C07C69/92 , C07C69/94 , C07C255/46 , C07D213/26 , C07D213/65 , C07D239/26 , C07D239/28 , C07D241/12 , C07D241/14 , C07D317/18 , C07D319/06 , C07D319/16 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/34 , G02F1/13
CPC分类号: C07D239/26 , C07C255/46 , C07C43/188 , C07C43/192 , C07C43/225 , C07D239/28 , C07D319/06 , C07D319/16 , C09K19/2007 , C09K19/3001 , C09K19/3402 , C09K19/3469 , C07C2101/14 , C09K2019/3422
摘要: Compounds of the formula ##STR1## wherein X.sup.1 denotes fluorine or chlorine and X.sup.2 denotes hydrogen, fluorine or chlorine; R.sup.1 is 3E-alkenyl, 4-alkenyl, 2E-alkenyloxy or 3-alkenyloxy; n stands for the number 0 or 1; one of the groups Y.sup.1 and Y.sup.2 is a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O-- or --OCH.sub.2 -- and the other of the groups Y.sup.1 and Y.sup.2 is a single covalent bond; and rings A.sup.1 and A.sup.2 each individually are substituted or unsubstituted trans-1,4-cyclohexylene, in which optionally 2 non-adjacent CH.sub.2 groups are replaced by oxygen, or substituted or unsubstituted 1,4-phenylene, in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; with the proviso that X.sup.2 denotes fluorine or chlorine and/or Y.sup.1 or Y.sup.2 denotes --CH.sub.2 O-- or --OCH.sub.2 -- when simultaneously X.sup.1 is fluorine and R.sup.1 is 3E-alkenyl,and their use for liquid crystalline mixtures and electro-optical purposes.
摘要翻译: 式(Ⅰ)化合物其中X1表示氟或氯,X2表示氢,氟或氯; R1是3E-链烯基,4-烯基,2E-烯氧基或3-烯氧基; n代表数字0或1; Y1和Y2中的一个是单个共价键,-COO-,-OOC-,-CH 2 CH 2 - , - CH 2 O-或-OCH 2 - ,而Y1和Y2中的另一个是单个共价键; 和环A1和A2各自各自为取代或未取代的反式-1,4-亚环己基,其中任选的两个不相邻的CH 2基团被氧取代,或取代或未取代的1,4-亚苯基,其中任选地1个CH基团或 2个CH基团被氮取代; 条件是当X 1是氟并且R 1是3E-烯基时,X 2表示氟或氯和/或Y 1或Y 2表示-CH 2 O-或-OCH 2 - ,并且它们用于液晶混合物和电光目的。
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公开(公告)号:US4364838A
公开(公告)日:1982-12-21
申请号:US205181
申请日:1980-11-10
申请人: Arthur Boller , Alfred Germann , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Alfred Germann , Martin Schadt , Alois Villiger
IPC分类号: C07D239/26 , C07D319/06 , C09K19/46 , C09K3/34 , G02F1/13
CPC分类号: C07D239/26 , C07D319/06 , C09K19/46
摘要: Liquid crystalline mixtures comprising trans-phenyldioxane, phenylpyrimidine and phenylbenzoate compounds which are useful in electro-optical apparatuses are disclosed.
摘要翻译: 公开了可用于电光装置的包含反式 - 苯基二恶烷,苯基嘧啶和苯基苯甲酸酯化合物的液晶混合物。
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公开(公告)号:US5302317A
公开(公告)日:1994-04-12
申请号:US38395
申请日:1993-03-29
IPC分类号: C07C17/00 , C07C17/26 , C07C25/24 , C07C41/00 , C07C43/188 , C07C43/192 , C07C43/225 , C07C67/00 , C07C69/75 , C07C69/753 , C07C69/76 , C07C69/773 , C07C69/92 , C07C69/94 , C07C255/46 , C07D213/26 , C07D213/65 , C07D239/26 , C07D239/28 , C07D241/12 , C07D241/14 , C07D317/18 , C07D319/06 , C07D319/16 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/06 , G02F1/13
CPC分类号: C07D239/26 , C07C255/46 , C07C43/188 , C07C43/192 , C07C43/225 , C07D239/28 , C07D319/06 , C07D319/16 , C09K19/2007 , C09K19/3001 , C09K19/3402 , C09K19/3469 , C07C2101/14 , C09K2019/3422
摘要: Compounds of the formula ##STR1## wherein X.sup.1 denotes fluorine or chlorine and X.sup.2 denotes hydrogen, fluorine or chlorine; R.sup.1 is 3E-alkenyl, 4-alkenyl, 2E-alkenyloxy or 3-alkenyloxy; n stands for the number 0 or 1; one of the groups Y.sup.1 and Y.sup.2 is a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O-- or --OCH.sub.2 -- and the other of the groups Y.sup.1 and Y.sup.2 is a single covalent bond; and rings A.sup.1 and A.sup.2 each individually are substituted or unsubstituted trans-1,4-cyclohexylene, in which optionally 2 non-adjacent CH.sub.2 groups are replaced by oxygen, or substituted or unsubstituted 1,4-phenylene, in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; with the proviso that X.sup.2 denotes fluorine or chlorine and/or Y.sup.1 or Y.sup.2 denotes --CH.sub.2 O-- or --OCH.sub.2 -- when simultaneously X.sup.1 is fluorine and R.sup.1 is 3E-alkenyl,and their use for liquid crystalline mixtures and electro-optical purposes.
摘要翻译: 式(Ⅰ)化合物其中X1表示氟或氯,X2表示氢,氟或氯; R1是3E-链烯基,4-烯基,2E-烯氧基或3-烯氧基; n代表数字0或1; Y1和Y2中的一个是单个共价键,-COO-,-OOC-,-CH 2 CH 2 - , - CH 2 O-或-OCH 2 - ,而Y1和Y2中的另一个是单个共价键; 和环A1和A2各自各自为取代或未取代的反式-1,4-亚环己基,其中任选的两个不相邻的CH 2基团被氧取代,或取代或未取代的1,4-亚苯基,其中任选地1个CH基团或 2个CH基团被氮取代; 条件是当X 1是氟并且R 1是3E-烯基时,X 2表示氟或氯和/或Y 1或Y 2表示-CH 2 O-或-OCH 2 - ,并且它们用于液晶混合物和电光目的。
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公开(公告)号:US5230826A
公开(公告)日:1993-07-27
申请号:US262652
申请日:1988-10-26
IPC分类号: C07C17/00 , C07C17/26 , C07C25/24 , C07C41/00 , C07C43/188 , C07C43/192 , C07C43/225 , C07C67/00 , C07C69/75 , C07C69/753 , C07C69/76 , C07C69/773 , C07C69/92 , C07C69/94 , C07C255/46 , C07D213/26 , C07D213/65 , C07D239/26 , C07D239/28 , C07D241/12 , C07D241/14 , C07D317/18 , C07D319/06 , C07D319/16 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/34
CPC分类号: C07D239/26 , C07C255/46 , C07C43/188 , C07C43/192 , C07C43/225 , C07D239/28 , C07D319/06 , C07D319/16 , C09K19/2007 , C09K19/3001 , C09K19/3402 , C09K19/3469 , C07C2101/14 , C09K2019/3422
摘要: Compounds of the formula ##STR1## wherein X.sup.1 denotes fluorine or chlorine and X.sup.2 denotes hydrogen, fluorine or chlorine; R.sup.1 is 3E-alkenyl, 4-alkenyl, 2E-alkenyloxy or 3-alkenyloxy; n stands for the number 0 or 1; one of the groups Y.sup.1 and Y.sup.2 is a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O-- or --OCH.sub.2 -- and the other of the groups Y.sup.1 and Y.sup.2 is a single covalent bond; and rings A.sup.1 and A.sup.2 each individually are substituted or unsubstituted trans-1,4-cyclohexylene, in which optionally 2 non-adjacent CH.sub.2 groups are replaced by oxygen, or substituted or unsubstituted 1,4-phenylene, in which optionally 1 CH group or 2 CH groups is/are replaced by nitrogen; with the proviso that X.sup.2 denotes fluorine or chlorine and/or Y.sup.1 or Y.sup.2 denotes --CH.sub.2 O-- or --OCH.sub.2 -- when simultaneously X.sup.1 is fluorine and R.sup.1 is 3E-alkenyl,and their use for liquid crystalline mixtures and electro-optical purposes.
摘要翻译: 式(Ⅰ)化合物其中X1表示氟或氯,X2表示氢,氟或氯; R1是3E-链烯基,4-烯基,2E-烯氧基或3-烯氧基; n代表数字0或1; Y1和Y2中的一个是单个共价键,-COO-,-OOC-,-CH 2 CH 2 - , - CH 2 O-或-OCH 2 - ,而Y1和Y2中的另一个是单个共价键; 和环A1和A2各自各自为取代或未取代的反式-1,4-亚环己基,其中任选的两个不相邻的CH 2基团被氧取代,或取代或未取代的1,4-亚苯基,其中任选地1个CH基团或 2个CH基团被氮取代; 条件是当X 1是氟并且R 1是3E-烯基时,X 2表示氟或氯和/或Y 1或Y 2表示-CH 2 O-或-OCH 2 - ,并且它们用于液晶混合物和电光目的。
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公开(公告)号:US4395350A
公开(公告)日:1983-07-26
申请号:US279493
申请日:1981-07-01
申请人: Arthur Boller , Alfred Germann , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Alfred Germann , Martin Schadt , Alois Villiger
IPC分类号: C09B1/503 , C09B29/08 , C09B29/12 , C09B31/043 , C09B31/062 , C09B43/28 , C09K19/60 , C09K3/34 , G02F1/13
CPC分类号: C09B31/043 , C09B1/503 , C09B29/081 , C09B29/12 , C09B31/062 , C09B43/28 , C09K19/60
摘要: Liquid crystal mixtures containing a coloring substance which comprise about 5 to about 40 weight % of trans-p-[5-(4-alkylcyclohexyl)-2-pyrimidinyl]benzonitriles, about 10 to about 60 weight % of trans-4-alkylcyclohexane carboxylic acid phenyl esters and about 0.1 to about 15 weight % of one or more coloring substances of the formula ##STR1## wherein m stands for the number 1 and X is alkoxy and Y is nitro; or m stands for the number 1 or 2; and X is p-alkoxyphenyl and Y is nitro or dialkylamino, or X is alkoxy and Y is -p-nitrophenyl or -(dialkylamino)phenyl; or m stands for the number 2, and X is alkoxy and Y is alkoxy, nitro or dialkylamino, or both X and Y are dialkylamino; and wherein the alkoxy denotes a straight-chain group containing 1 to 12 carbon atoms and the alkyl groups in the dialkylamino each denote a straight-chain alkyl group containing 1 to 4 carbon atoms are described.
摘要翻译: 包含着色物质的液晶混合物,其包含约5至约40重量%的反式p- [5-(4-烷基环己基)-2-嘧啶基]苯腈,约10至约60重量%的反式-4-烷基环己烷羧酸 酸性苯基酯和约0.1至约15重量%的一种或多种式Ⅻ的着色物质,其中m代表数字1,X是烷氧基,Y是硝基; 或m代表数字1或2; X为对烷氧基苯基,Y为硝基或二烷基氨基,或X为烷氧基,Y为对硝基苯基或 - (二烷基氨基)苯基; 或m代表数2,X是烷氧基,Y是烷氧基,硝基或二烷基氨基,或者X和Y都是二烷基氨基; 并且其中所述烷氧基表示含有1至12个碳原子的直链基团,并且描述二烷基氨基中的烷基各自表示含有1至4个碳原子的直链烷基。
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公开(公告)号:US4273929A
公开(公告)日:1981-06-16
申请号:US116518
申请日:1980-01-29
申请人: Arthur Boller , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Martin Schadt , Alois Villiger
IPC分类号: C07D239/26 , C09K19/34 , C09K19/60 , C09K3/34 , G02F1/13
CPC分类号: C07D239/26 , C09K19/3469 , C09K19/601
摘要: Pyrimidine derivatives of the formula ##STR1## wherein at least one of rings A and B is a trans-1,4-disubstituted cyclohexane ring and the other, optionally, may be aromatic and R is straight-chain alkyl or alkoxy of 1 to 10 carbon atoms or a branched-chain alkyl group of the formulas C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n --wherein n is 1, 2 or 3, are described. Processes for the preparation of the compounds of formula I as well as their uses in liquid crystalline mixtures are also described.
摘要翻译: 下式的嘧啶衍生物其中环A和B中的至少一个是反式-1,4-二取代的环己烷环,另一个任选地可以是芳族的,R是直链烷基或烷氧基, 10个碳原子或式C 2 H 5 -CH(CH 3) - (CH 2)n - 的支链烷基,其中n为1,2或3。 还描述了制备式I化合物的方法及其在液晶混合物中的用途。
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公开(公告)号:US4391731A
公开(公告)日:1983-07-05
申请号:US289676
申请日:1981-08-03
申请人: Arthur Boller , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Martin Schadt , Alois Villiger
IPC分类号: C07C1/22 , C07C13/48 , C07C13/50 , C07C43/18 , C07C43/20 , C07C43/235 , C07C45/46 , C07C45/62 , C07C45/68 , C07C47/47 , C07C49/323 , C07C49/792 , C07C51/36 , C07C61/13 , C07C61/15 , C07C61/29 , C07C63/49 , C07C63/72 , C07C69/753 , C07C69/773 , C07C233/00 , C07C255/50 , C07C255/51 , C07C255/53 , C07D295/02 , C07D295/033 , C09K19/00 , C09K19/32 , C09K3/34 , C07C121/46
CPC分类号: C09K19/322 , C07C1/22 , C07C13/48 , C07C13/50 , C07C327/00 , C07C43/18 , C07C43/20 , C07C43/235 , C07C45/46 , C07C45/62 , C07C45/68 , C07C47/47 , C07C49/323 , C07C49/792 , C07C51/36 , C07C61/13 , C07C61/15 , C07C61/29 , C07C63/49 , C07C63/72 , C07D295/033 , C07C2102/28 , C09K2019/326
摘要: Compounds of the formula ##STR1## wherein ring A is saturated or aromatic and a saturated ring A which may be present is trans-linked with the second ring; R.sup.1 is a straight-chain alkyl or alkoxy group containing 1 to 11 carbon atoms; R.sup.2 is cyano, a straight-chain alkyl group containing 1 to 11 carbon atoms, an ester group of the formula ##STR2## or, when ring A is saturated, additionally a straight-chain alkoxy group containing 1 to 11 carbon atoms; in the ester group of formula II ring B is either aromatic and X is oxygen or sulfur and R.sup.3 is cyano or a straight-chain alkyl or alkoxy group containing 1 to 10 carbon atoms, or ring B is a trans-1,4-disubstituted cyclohexane ring and X is oxygen and R.sup.3 is cyano or a straight-chain alkyl group containing 1 to 10 carbon atoms; and the total number of carbon atoms in the alkyl and/or alkoxy groups amounts to at most 12, are described. The compounds of formula I are useful in liquid crystal mixtures.
摘要翻译: 其中环A是饱和的或芳族的,其可以存在的饱和环A与第二个环反应的式I的化合物; R1是含有1至11个碳原子的直链烷基或烷氧基; R2是氰基,含有1至11个碳原子的直链烷基,式II的酯基或当A环饱和时,另外是含有1至11个碳原子的直链烷氧基; 在式II的酯基中,环B为芳族的,X为氧或硫,R 3为氰基或含有1至10个碳原子的直链烷基或烷氧基,或环B为反式-1,4-二取代 环己烷环,X为氧,R3为氰基或含有1〜10个碳原子的直链烷基; 并且烷基和/或烷氧基中的碳原子总数达到至多12。 式I化合物可用于液晶混合物。
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公开(公告)号:US4389329A
公开(公告)日:1983-06-21
申请号:US230074
申请日:1981-01-30
申请人: Arthur Boller , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Martin Schadt , Alois Villiger
IPC分类号: C07D239/26 , C09K19/34 , C09K19/60 , C09K3/34 , G02F1/13
CPC分类号: C07D239/26 , C09K19/3469 , C09K19/601
摘要: Pyrimidine derivatives of the formula ##STR1## wherein at least one of rings A and B is a trans-1,4-disubstituted cyclohexane ring and the other, optionally, may be aromatic and R is straight-chain alkyl or alkoxy of 1 to 10 carbon atoms or a branched-chain alkyl group of the formula C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n -- wherein n is 1, 2 or 3, are described. Processes for the preparation of the compounds of formula I as well as their uses in liquid crystalline mixtures are also described.
摘要翻译: 下式的嘧啶衍生物其中环A和B中的至少一个是反式-1,4-二取代的环己烷环,另一个任选地可以是芳族的,R是直链烷基或烷氧基, 10个碳原子或式C2H5-CH(CH3) - (CH2)n-的支链烷基,其中n为1,2或3。 还描述了制备式I化合物的方法及其在液晶混合物中的用途。
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公开(公告)号:US5013476A
公开(公告)日:1991-05-07
申请号:US121712
申请日:1987-11-17
申请人: Arthur Boller , Richard Buchecker , Hans-Jurgen Fromm , Stephen Kelly , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Richard Buchecker , Hans-Jurgen Fromm , Stephen Kelly , Martin Schadt , Alois Villiger
IPC分类号: G02F1/137 , C07C15/50 , C07C43/166 , C07C43/215 , C07C67/00 , C07C69/773 , C07C69/88 , C07C69/90 , C07C69/92 , C07C69/94 , C07C253/00 , C07C255/57 , C07D239/26 , C07D241/12 , C07D319/06 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/34 , C09K19/42 , C09K19/44 , C09K19/46 , G02F1/13 , G02F1/141
CPC分类号: C09K19/3458 , C09K19/2007 , C09K19/2021 , C09K19/3402 , C09K19/3452 , C09K19/42 , C09K2019/3422
摘要: A ferroelectric liquid crystal mixture containing at least one compound of the formula ##STR1## wherein n stands for the number 0 or 1; X.sup.1 represents a single covalent bond, --COO-- or --OOC-- and X.sup.2 represents a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--; rings A.sup.1, A.sup.2 and A.sup.3 each independently signify 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl or pyrimidin-2,5-diyl, pyrazin-2,5-diyl, when n is 1, trans-1,4-cyclohexylene or trans-m-dioxan-2,5-diyl; with the proviso that one of the rings present stands for pyrimidin-2,5-diyl or pyrazin-2,5-diyl when a further ring signifies trans-1,4-cyclohexylene or when n stands for the number 0 and X.sup.1 stands for a single covalent bond; and R.sup.1 signifies an optionally halogen-substituted alkenyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that R.sup.1 is different from 3,7-dimethyl-6-octenyloxy; R.sup.2 signifies an optionally halogen-substituted alkyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that residues R.sup.1 and/or R.sup.2 attached to an aromatic ring have at least 2 chain atoms between the aromatic ring and a C.dbd.C double bond present;as well as novel compounds falling under formula I and novel ferroelectric liquid crystal devices employing the compounds according to the invention.
摘要翻译: 含有至少一种下式化合物的铁电液晶混合物,其中n代表数字0或1; X1表示单个共价键,-COO-或-OOC-,X2表示单个共价键,-COO - , - OOC - , - CH 2 CH 2 - , - OCH 2 - 或-CH 2 O-。 环A1,A2和A3各自独立地表示任选被氰基,卤素或低级烷基或嘧啶-2,5-二基,吡嗪-2,5-二基取代的1,4-亚苯基,当n为1时,反式-1,4 环己基或反式间二恶烷-2,5-二基; 条件是存在的一个环表示嘧啶-2,5-二基或吡嗪-2,5-二基,当另一个环表示反式-1,4-亚环己基或当n表示0时,X 1表示 单一共价键; 并且R 1表示任选具有至多18个碳原子的卤素取代的烯基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是R1不同于3,7-二甲基-6-辛烯氧基; R2表示任选具有至多18个碳原子的卤素取代的烷基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是连接到芳族环上的残基R1和/或R2在芳族环和存在的C = C双键之间具有至少2个链原子; 以及下式I中的新化合物和使用本发明化合物的新型铁电液晶装置。
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公开(公告)号:US4462923A
公开(公告)日:1984-07-31
申请号:US309421
申请日:1981-10-07
申请人: Arthur Boller , Martin Schadt , Alois Villiger
发明人: Arthur Boller , Martin Schadt , Alois Villiger
IPC分类号: C07C45/00 , C07C45/46 , C07C45/56 , C07C45/62 , C07C49/323 , C07C49/637 , C07C49/792 , C07C61/13 , C07C63/49 , C07D239/26 , C07D239/28 , C07D239/30 , C07D295/02 , C07D295/033 , C07D339/08 , C09K19/00 , C09K19/34 , C09K19/54 , G02F1/13 , C09K3/34
CPC分类号: C07D239/26 , C07C255/00 , C07C45/004 , C07C45/46 , C07C45/562 , C07C45/62 , C07C49/323 , C07C49/637 , C07C49/792 , C07C61/13 , C07C63/49 , C07D239/30 , C07D295/033 , C09K19/3402 , C09K19/3458 , C09K19/3469 , C07C2102/28 , C07C2531/22 , C09K2019/3422 , C09K2019/3425
摘要: Pyrimidines of the formula: ##STR1## wherein Y is nitrogen and Z is .dbd.CH--, or Z is nitrogen and Y is .dbd.CH--; R.sup.1 is alkyl and R.sup.2 is cyano, alkyl, p-alkylphenyl or trans-4-alkylcyclohexyl; where each alkyl denotes either a straight chain alkyl group of 1 to 12 carbon atoms or a branched chain alkyl group of the formula C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n, n is 1, 2 or 3; with the proviso that the compound contains at most only one of said branched chain alkyl group and with the further proviso that the sum of the carbon atoms in all of the alkyl groups within the compound is at most 14are described. Liquid crystalline mixtures comprising Compound I as well as their use in electro-optical devices also are disclosed.
摘要翻译: 下式的嘧啶:其中Y是氮,Z是= CH-,或Z是氮,Y是= CH-; R1是烷基,R2是氰基,烷基,对烷基苯基或反式-4-烷基环己基; 其中每个烷基表示1至12个碳原子的直链烷基或式C2H5-CH(CH3) - (CH2)n的支链烷基,n为1,2或3; 条件是该化合物至多包含一个所述支链烷基,另外条件是化合物中所有烷基中的碳原子之和为至多14个。 还公开了包含化合物I的液晶混合物以及它们在电光器件中的用途。
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