LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal composition which satisfies many of properties including a high upper limit temperature in nematic, a low lower limit temperature in nematic, a low viscosity, moderate optical anisotropy, large negative dielectric anisotropy, a small frequency dependency of dielectric anisotropy, a small temperature dependency of threshold voltage, a large specific resistivity, etc. SOLUTION: The liquid crystal composition having negative dielectric anisotropy comprises at least one compound represented by formula (1), at least one compound represented by formula (2), at least one compound represented by formula (4), at least one compound represented by formula (5), and at least one compound represented by formula (6) and substantially consists of these compounds. In formulas (1) to (6), R1, R2, R3, and R4are each, for example, an alkyl; A1, A2, and A3are each, for example, 1,4-phenylene; Z1is a single bond, -CH2O-, or -COO-; and Z2is a single bond or -COO-. COPYRIGHT: (C)2006,JPO&NCIPI