| abstract |
PROBLEM TO BE SOLVED: To provide various characteristics required for an AM-LCD, to have a low threshold voltage, a wide nematic temperature range, a low viscosity, excellent high-speed response, and high retention. The present invention provides a liquid crystal composition and a liquid crystal display device using the same, which can maintain the rate up to a high temperature, or a liquid crystal composition and a liquid crystal display device in which the above-mentioned disadvantages have been improved conventionally. SOLUTION: General formulas (1) and (2) (R: independently, alkyl, alkenyl and the like having 1 to 15 carbon atoms, A 1 , A 2 : 1,4-phenylene, trans-1,4-cyclohexylene, A 3 , A 4 : 1,4-phenylene ,Trance- Z 1 , Z 2 : single bond, CH 2 CH, such as 1,4-cyclohexylene 2 etc., Z 3 , Z 4 : COO, OCO, CH 2 O, etc., p, q: 0, 1, n: 0,1,2, Y 1, Y 2: F atom, Cl atom, Q 1: O A nematic liquid crystal composition containing a compound selected from the group consisting of CH 2 , OCF 2 , OCHF and Q 2 : a single bond, CF 2 , OCF 2 and OCHF is used. |