Autostereoscopic displays based on parallax barriers

Flat panel display device Parallax barrier 

Similar to a two-view display, there is an optimal viewing distance and in some regions it only gives a pseudo-stereoscopic view. The horizontal spatial resolution is reduced by a factor of the number of views. Moreover, the opaque barriers absorb a large portion of the light and significantly reduce the brightness. 

By this method, spatial multiplexing and time multiplexing are used simultaneously. Each eye can see the image from both odd- and even-column pixels in the time sequence, and the full resolution is preserved. 

---