In this paper, by using a dual frequency liquid crystal material, we propose a liquid crystaldevice with a fast response characteristics. The dual frequency liquid crystal material has a positivedielectric anisotropy value at a low frequency. With a high frequency, the dielectric anisotropy becomesnegative. Therefore, the relaxation process is governed by not only the elastic deformation, but also thedielectric interaction. The measured decay time and rise time were 0.88 ms and 0.33 ms, respectively.