Human brains are extremely complex nervous systems, as we all know. Everything we see with our eyes is three-dimensional. A person’s two eyeballs pass through a short distance between their eyes, so they see two different pictures. The brain uses this slight difference to convert the spatial coordinates between objects into a straight line direction and the line of sight disappears. The stereoscopic sense can also be used to distinguish distance and size of objects, that is, the stereoscopic sense.
As the hardware, the 3D LED screen combines two images taken from different angles into one lens by using a flexible LED screen that can be bent into a certain radian or 90 degrees. 3D technology provides depth when we view these images with the left and right eyes at the same time due to parallax.