Abstract: Present invention relates to apparatus and methods for glassless 3D display with “unlimited” number of TV viewers and with flexibility for eye positions, the fundament elements of this invention are the introduction of “eye space” and the circuit unit for shutter pupil control on shutter screen. The methods are applied to any 3D display, such as TV's, monitors, smart devices (iphone, ipad, . . . ), movie theaters, games, etc. One of the methods is called “mimic scene method”, based on image depth map. The second one is called “dynamic pinhole shutter method”.