Nowadays, with the functions and application fields of indoor ultra-high definition full-color and small space LED display system constantly enriched and expanded, the user input of 3D display technology gradually exceeds the two-dimensional plane display, and the imaging effect of LED screen gradually develops towards the direction of three-dimensional. Whether it is the 2D 3D one button intelligent switching technology of Shanghai Sansi led small spacing display system or the new naked eye 3D technology, it has played a positive role in guiding the development of LED display 3D technology.

 

 

 

Many customers are quite familiar with the former's use scenarios: when 3D playback mode is selected, the seamless led splicing wall will present a more detailed and smooth HD image, making the content presentation of specific digital display platform more reasonable. So what kind of display technology is naked eye 3D?

 

 

 

 

Preliminary understanding of naked eye 3D technology

 

 

 

 

Naked eye 3D technology can create realistic led 3D effect in front of eyes without using 3D glasses or other auxiliary tools. Compared with other 3D screens, they have the advantages of high brightness, no need to rely on external light, and their own display can effectively support moire, etc., so they can enjoy the immersive experience of spatial dimension without causing visual fatigue.

 

 

 

 

The rise of naked eye 3D technology can be traced back to 2013, and there are two main reasons why the technology has not been popularized to this day:

 

 

 

 

As a result, the definition of application scene of LED display screen of naked eye 3D technology is relatively vague, and currently it is only applied to specific high-end customized scenes such as cinemas and interactive venues.

 

 

 

 

The second is high technical threshold and long production cycle: the research and development of hardware equipment and display system of this technology is in the initial stage with high cost, which requires us to understand the basic imaging principle of naked eye 3D technology.

 

 

 

 

Imaging principle of naked eye 3D technology

 

 

 

 

Taking the indoor application of 500 lux illumination in the daytime as an example, in the single viewing scene, it is assumed that our eyes are 60-70mm apart, and at the same time, we imagine that our brain is an extremely complex nervous system.

 

 

 

 

When viewing an object, the basic principle of naked eye 3D imaging is to make use of the horizontal visual difference of the object imaging on the retina of both eyes, at the same time, the brain reflects the two images with parallax through the fusion of the optic nerve center, thus forming a three-dimensional picture with longitudinal depth.

 

 

 

At present, the mainstream imaging technologies of naked eye 3D include cylindrical lens and polarized eye. In the process of imaging, in order to achieve better simulation stereo effect, it puts forward higher requirements for the number of viewpoints of high-resolution LED or other panel screens. The R & D cost increases significantly, and the technical threshold is high, so the market investment enthusiasm decreases.

 

 

 

 

Prediction of the future development trend of 3D LED screen

 

 

 

 

With the development of modern naked eye 3D technology, the arrival of 5g and other factors, the 3D LED display function of 4K, 8K and other high-resolution small spacing display systems will gradually enter the right track. With relatively small screen volume and arc-shaped seamless variable design, the future led small spacing system can accelerate the commercial integration with 3D, VR / AR and other technologies.