A low driving voltage with fast response Gradient-driven Liquid Crystal lens (GDLC-lens) was developed. The driving voltage is less than 5 volts. The response time is 0.8 seconds. By implementing the LC-lens as an array structure, it can be adaptively used for 2D/3D switching and 3D rotation on autostereoscopic displays. Additionally, it also can be utilized as a depth sensor for 3D capturing.