Japan Hibino Corp has introduced two kinds of 3D LED displays, one is the "ChromaLED 3D4" with the industry's narrowest pitch of 4mm pixels, and the other is the "ChromaLED 3D6" with 6mm pixel pitch.
  

Both of the models are based on the "dot-by-dot method". Each dot is equipped with a circularly-polarized filter, and 3D images can be viewed by using passive circularly-polarized glasses.
 
The new LED display will available in exhibitions, concerts and other events as well as for museums, attractions at theme parks and so on.
 
At present, Hibino has been developing 3D LED displays based on the "line-by-line method". However, with this method, the resolution of 3D images in the vertical direction decreases by half compared with that of 2D images. Therefore, the clarity of images lowers, making it impossible, for example, to clearly display diagonal lines.
 
This time, Hibino employed the dot-by-dot method to mitigate such a problem. Though the resolutions in the horizontal and vertical directions decrease by about 30% in the dot-by-dot method, it maintains the balance of the resolutions at a constant level, enabling to display natural 3D images.

In addition, it developed its own method of placing a circularly-polarized filter on each dot so that the viewing angle of the display increases.