Polymer-stabilized liquid crystal (PSLC) has been extensively studied in recent years. Primarily, the formed polymer branches can stabilize the structure of the liquid-crystal molecules, confining the local domains inside the bulk and increasing the boundary anchoring, thereby improving the electro-optical display performance. To reduce the response time whereas keep the ac driving voltage to be reasonably low, we have consulted the relevant literature for an optimum concentration of prepolymer to LC. Experimental results show that the PSLC investigated in this study possesses the following characteristics: 1. The relaxation time is ca. 1/3 of that of a pristine liquid crystal. 2. The driving voltage with high frequency is greater than that with low frequency. 3. The relaxation time varies with the frequency of ac driving voltage. 4. Carbon nanotubes as a dopant can reduce the driving voltage and relaxation time effectively.