However glasses free technology is not new.
HP’s researchers have found a way to make images viewable in 3D from angles up to 45 degrees from center in any direction -up, down, side-to-side or diagonally i.e viewers can see a person’s face with one ear blocked from view, but reveal the ear by swiveling the screen.
The scientists used nanotechnology to etch multiple circles with tiny grooves into a glass layer of the display.
The grooves bend light in a way that allows for 64 different points of view.
By moving the screen, people will perceive two of those points of view at any one time, one with their left eye and one with their right.
As a result, the image will appear in 3D.