The switching response behavior of negative dielectric anisotropic liquid crystal in the fringe-field switching (FFS) mode was investigated with respect to the pixel electrode positions. When the applied voltage relaxes to lower voltage, optical bounce was observed at the edge region of pixel electrode. Based on the simulation results, we have proposed a promising molecular behavior associated with optical bounce, which originates from the reorientation process of LC director that is in over-twist state associated with tilt angle. Experimental results also show the optical bounce during switching-off time.