(stereoscopic) printing and even the realm of virtual reality. Three-dimensional image plane technology as early as 30 years ago has launched products, but hinder the material constraints and unable to break through key technical, it can only be used in a small area of goods, in the three-dimensional layer at most only do four the following pseudo three-dimensional layer (3D printing), generally seen as the animation is the use of their image made of the wrong way to move.

Printed on the sheet in order to demonstrate the depth of three-dimensional effect or animation magic, is the use of grating film for printing. The laser holographic film is not to restore the true color. The best international practice that is PET cylinder grating grating, PET has high transparency, hardness, environmental degradation, etc. may be, is more suitable than the PP folding boxes, images more clearly. To achieve the desired accuracy of the image, generally related to the 100 lines to 161 lines of the grating (line number refers to one inch in the number of grating stripes), the higher the number of lines on the printing plate and the higher the demand.