With certain distant pixel (LED spot-lighting source) linked unlimitedly and paralleled, a curtain screen is formed. With spectating angel of 360y or 180y , the curtain screen could form artificial illuminating effects while presenting the image to give audience feelings of ?multi-angel?. It gets its name from the usage of stage setting decoration. With the 3D curtain screen hanging up in the middle of stage, audience could enjoy the image in the screen perfectly no matter where they are,. The height of digital curtain screen could also be decreased or increased accordingly. It?s easy to set up and lay down without the consideration of the space while the former 3 functions are included for bar, disco, nightclub, ballroom and so on.