Naked eye 3D and directional light source 3D technology

Glasses-free 3D

From a technical point of view, naked-eye 3D can be divided into three types: light barrier cylindrical lens technology and directional light source technology. The biggest advantage of naked-eye 3D technology is that it gets rid of the constraints of glasses, but there are still many shortcomings in terms of resolution, viewing angle and viewing distance.

When watching, the audience needs to maintain a certain position from the display device to see the 3D image (the 3D effect is greatly affected by the viewing angle). There is still a certain gap between the 3D image and the common polarized 3D technology and shutter 3D technology.

Pointing light source 3D technology

Pointing light source - 3M is the company that has invested a lot of energy in pointing light source 3D technology. Pointing light source 3D technology uses two sets of LEDs, a fast-response LCD panel and a driving method to allow 3D content to enter the viewer's left and right eyes in a sequenced manner to exchange images and produce parallax, thereby allowing the human eye to feel the 3D three-dimensional effect. Not long ago, 3M just demonstrated its successfully developed 3D optical film. The interview of this product has realized the display of true three-dimensional stereoscopic images in mobile phones, game consoles and other handheld devices without wearing 3D glasses, greatly enhancing the communication and interaction based on mobile devices.

Advantages: resolution and transmittance are guaranteed, will not affect the existing design architecture, and 3D display effect is excellent

Disadvantages: The technology is still under development and the product is not mature.