tA novel autostereoscopic display system with the characteristics of variable viewing distance control,real-time 2D/3D switchable display, and adjustable lens pitch using an acousto-optic lens (AOL) is pro-posed. With the unique property of an AOL array, the proposed system can provide viewers to selectsuitable viewing distances by adjusting the acoustic signal that is applied to the AOL array. With thesame property, the system can also be adjusted with an appropriate interpupillary distance (IPD) for per-sonal entertainment applications. The proposed system with adjustable lens pitch, can adopt to differentdisplay panels with various resolutions and/or composited images. The operation principle of the systemis analyzed with a set of design parameters and a set of simulation results to facilitate the implementationof the system and to verify the validity of the approach.