Auto stereo display system for subway tunnel

Abstract

An auto stereo display system for subway tunnel is disclosed. When a train is traveling through the tunnel at high speed, passengers can see stereo images outside the window by the system. The system is composed of LED light columns that vertically aligned at equal distance on the tunnel wall. Each LED light column is composed of multiple columns of LEDs and slit gratings. When the LEDs are changing with the changing instant speed of multi viewing angle image pixel array and the train, the passengers can see stereo image without glasses. The display system is specially applicable for business advertisement and nonprofit propagation in subway tunnel.

Dependencies are inferred from the claim text.