Patent ID: 6500502
Filing Date: 2002-12-31
Classification: C09K

Abstract:
A liquid crystal composition comprising:a first component comprising at least one compound selected from the group consisting of compounds represented by the general formulas (1-1), (1-2), (1-4), (1-5), (1-6), (1-7) and (1-8), and a second component comprising at least one compound selected from the group consisting of compounds represented by the general formulas (2-1), (2-2), (2-3) and (2-4), without any liquid crystalline compound having a dielectric anisotropy value (&Dgr;&egr;) of 5 or more and three or more six-membered rings, as another component: wherein R1 represents an alkyl group of 1 to 10 carbon atoms in which one methylene group may be replaced by an oxygen atom or â€”CH&boxH;CHâ€”; R2, R3 and R4 each independently represent an alkyl group of 1 to 10 carbon atoms in which one methylene group may be replaced by an oxygen atom or â€”CH&boxH;CHâ€” and one or more hydrogen atoms may be substituted by fluorine atoms; R5 represents an alkyl group of 1 to 10 carbon atoms in which one methylene group may be replaced by an oxygen atom; R6, R7 and R9 each independently represent an alkyl group of 1 to 10 carbon atoms; R8 represents an alkyl group of 1 to 10 carbon atoms in which one methylene group may be replaced by an oxygen atom; A1, A2, A3 and A5 each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group; A4 represents a 1,4-phenylene group or a 1,4-phenylene group substituted by one to four fluorine atoms; Z1 represents â€”C&boxH;Câ€” or a single bond; and m and n each independently represent an integer of 0 or 1; wherein the contents of the first component and the second component are 5 to 50% and 10 to 85%, respectively, with respect to the total weight of the liquid crystal composition.