LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITION CONTAINING THE SAME, AND LIQUID-CRYSTAL DISPLAY ELEMENT CONTAINING THE SAME
申请人:——
公开号:US20020015804A1
公开(公告)日:2002-02-07
There can be provided a liquid crystalline compound expressed by the general formula (1):
1
wherein R represents a hydrogen atom, a cyano group, a halogen atom, a C
1
to C
20
alkyl group or a halogenated alkyl group, B1, B2, B3 and B4 are independently a covalent bond or a C
1
to C
4
alkylene group, n1, n2, n3, n4, m1, m2 and m3 are independently 0 or 1, rings A1, A2, A3 and A4 are independently a benzene ring in which one to four hydrogen atoms may be replaced by halogen atoms, bicyclo[1.1.1]pentane ring, bicyclo[2.1.1]hexane ring, bicyclo[2.2.1]heptane ring, bicyclo[2.2.2]octane ring, naphthalene ring, 1,2,3,4-tetrahydronaphthalene ring, perhydronaphthalene ring, fluorene ring, phenanthrene ring, 9,10-dihydrophenanthrene ring, indan ring, indene ring, pyridine ring, pyrimidine ring, C
4
to C
20
cycloalkane ring or cycloalkene ring,
G represents any one of groups represented by the formulae (G1) to (G3):
2
wherein Q
1
, Q
2
, Q
3
and Q
4
are independently a covalent bond, an oxygen atom, a sulfur atom, —CH
2
—, —CH
2
CH
2
—, —CH═CH—, —CO—, —CF═CF— or —CF
2
—, the number of covalent bonds is 2 or less, Q
1
and Q
4
are preferential, the oxygen atom and the sulfur atom are not adjacent to each other, Q
5
and Q
6
are independently ═CH—, ═CF— or ═CCl—, Y
1
and Y
2
are independently a hydrogen atom, a halogen atom, a cyano group, a nitro group, an amino group, or a C
1
to C
20
alkyl group or halogenated alkyl group, as well as a liquid crystal composition comprising the same, and a liquid crystal display device fabricated by using the same, and these are used in various liquid crystal display devices including TFT type.
可以提供一个液晶化合物,其通式(1)表示为:其中,R表示氢原子,氰基,卤原子,C1到C20烷基或卤代烷基;B1,B2,B3和B4分别是共价键或C1到C4亚烷基基团;n1,n2,n3,n4,m1,m2和m3分别是0或1;环A1,A2,A3和A4分别是苯环,其中1到4个氢原子可以被卤原子取代,双环[1.1.1]戊烷环,双环[2.1.1]己烷环,双环[2.2.1]庚烷环,双环[2.2.2]辛烷环,萘环,1,2,3,4-四氢萘环,全氢萘环,芴环,菲环,9,10-二氢菲环,茚环,吲哚环,吡啶环,嘧啶环,C4到C20环烷基环或环烯基环;G表示由式(G1)至(G3)表示的任一基团:其中,Q1,Q2,Q3和Q4分别是共价键,氧原子,硫原子,-CH2-,-CH2CH2-,-CH=CH-,-CO-,-CF=CF-或-CF2-,共价键数不超过2,优选Q1和Q4,氧原子和硫原子不相邻,Q5和Q6分别是-H,-F或-Cl,Y1和Y2分别是氢原子,卤原子,氰基,硝基,氨基或C1到C20烷基或卤代烷基;以及包含该化合物的液晶组合物和使用该组合物制造的液晶显示装置,这些可以用于各种液晶显示装置,包括TFT类型。