Technology | analysis of working principle of naked eye 3D screen

In recent years, the naked eye 3D screen has been in a "mess", and hundreds of cities across the country have continued to build naked eye 3D screens of local culture. At the same time, the naked eye 3D screen has attracted the attention of many screen enterprises and cheered by the audience. Although the naked eye 3D screen looks like a leap forward breakthrough in traditional display, it is actually more "ordinary".

In short, domestic naked eye 3D technology is not a cutting-edge display technology, but this technology can see a vivid three-dimensional picture with the naked eye without wearing 3D auxiliary tools. Our naked eye 3D working principle is to use people's left and right eyes to receive pictures at different positions respectively, and then through the superposition and fusion of the two image information by the brain to form an image with not only up-down, left-right, but also front back and far near stereo effects.

The common types of naked eye 3D display technology are shutter type and polarizing type. The shutter type refers to that the image is divided into two frames to form two groups of pictures corresponding to the left eye and the right eye, which are displayed continuously and alternately. At the same time, the infrared signal transmitter will synchronously control the left and right lens switches of the shutter type 3D glasses, so that the left and right eyes can see the corresponding picture at a certain time. Polarizing decomposes the original image by using the principle that light has "vibration direction". Firstly, the image is divided into two groups of vertically polarized light and horizontally polarized light, and then polarizing lenses with different polarization directions are used on the left and right sides of 3D glasses, so that people's left and right eyes can receive two groups of pictures, and then synthesize three-dimensional images through the brain. In comparison, there are more applications of shutter naked eye 3D screen.

 

The current naked eye 3D technology is not really like naked eye 3D display, but the large screen has a strong stereo effect when viewing a specific video customized for the large screen from a specific angle, otherwise the image will be distorted. For example, when the audience looks at a straight line in the plane from any angle, the straight line is a straight line, but when the straight line is placed in the special-shaped screen, the straight line will become a slash when viewed only at the same height as the eyes.

In recent years, the popular naked eye 3D screen is composed of two pictures from different angles without exception. The display screen folds the picture 90 °. Using the video material in line with the perspective principle, the left screen shows the left view of the image and the right shows the main view of the image. When people stand in front of the corner, they can see the side and front of the object at the same time, showing a realistic three-dimensional effect.

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Sunrise LED Display manufacturer