LIQUID CRYSTALLINE TRIFLUORO-SUBSTITUTED COMPOUNDS

专利名称：LIQUID CRYSTALLINE TRIFLUORO-SUBSTITUTED COMPOUNDS

发明人：KELLY, Stephen Malcolm,SKELTON, Graham

William

申请号：EP99962342.4申请日：19991217公开号：EP1150937A1公开日：20011107

摘要：Compounds are provided of the formula for use in a range of liquid crystaldisplay devices (formula I) wherein n may be 0, 1 or 2, A1, A2, A3 are independentlychosen from 1,4-disubstituted benzene, 2,5-disubstituted pyridine, 2,6-disubstitutednaphthalene; laterally substituted 1,4-disubstituted benzene, laterally substituted 2,5-disubstituted pyrimidine, laterally substituted 2,5-disubstituted pyridine, laterallysubstituted 2,5-disubstituted naphthalene wherein the lateral substituents areindependently selected from F, CI, Br or CN and may be present in any of the availablesubstitution positions; 1,4-disubstituted bicyclo(2.2.2)octane, trans-1,4-disubstitutedcyclohexane, trans-2,5-disubstituted dioxane, 1,4-disubstituted piperidine, Z1, Z2 areindependently chosen from a direct bond, COO, OOC, C2H4, CH2O, OCH2, C4H8, C3H6O,(E)-CH=CHC2H4, (Z)-CH2CH=CHCH2, (E)-CH=CHCH2O, -C≡C-, Z3 may be C4H8, OC3H6,(E)-CH=CHC2H4, (Z)-CH2CH=CHCH2, (E)-OCH2CH=CH, -C≡C-, C2H4; R may be alkyl,alkoxy, alkenyl, alkenyloxy, alkanoyloxy, alkenoyloxy or OCmF2m+1, R may contain 1 to20 carbon atoms and may be branched or a straight chain m is 1-20.

申请人：QinetiQ Limited

地址：85 Buckingham Gate London, SW1 6TD GB

国籍：GB

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