| abstract |
[PROBLEMS] To maintain various characteristics required for an AM-LCD, have a low threshold voltage, a wide nematic temperature range, a low viscosity, and maintain a high retention rate up to a high temperature. Provided are a liquid crystal composition and a liquid crystal display device using the same, or a liquid crystal composition and a liquid crystal display device in which the above-mentioned drawbacks have been conventionally improved. SOLUTION: General formula (1) and general formula (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 : C00, OCO etc., p, q: 0, 1, n: 0, 1, 2, Y: F, Cl, Q: CF 2 , single bond, etc.) are used. |