What exactly is naked-eye 3D? Come and have a look.

3D is a three-dimensional graphic. Displaying a three-dimensional graphic on a computer refers to displaying a three-dimensional graphic on a plane. Unlike the real world, real three-dimensional space has real distance space. Computers only look like the real world, so the 3D graphics displayed on computers only make people look like real people. One of the characteristics of the human eye is that things appear larger up close and smaller in the distance, creating a three-dimensional effect. Naked-eye 3D This is to break free from the shackles of special glasses, making the 3D graphics displayed on the computer look like real people.

Currently the main Naked-eye 3D display technologies are improved based on the following two technologies. One is parallax barrier technology, and the other is lenticular lens technology.

1. Parallax barrier naked-eye 3D technology.

Friends who remember physics from high school should know that polarized glasses are widely used when playing 3D movies in cinemas. Parallax barrier technology is somewhat similar to the polarized glasses method, but one requires glasses, while the other does not. The naked-eye 3D effect is achieved by using a switching liquid crystal screen, polarizing film, and a polymer liquid crystal layer, using the liquid crystal layer and polarizing film to produce a series of vertical stripes with a direction of 90 degrees.

These stripes are tens of micrometers wide, and the light passing through them forms a vertical thin grid pattern, called a "parallax barrier." This technology utilizes a parallax barrier placed between the backlight module and the LCD panel. In stereo display mode, when an image that should be seen by the left eye is displayed on the LCD screen, the opaque stripes will block the right eye. Similarly, when an image that should be seen by the right eye is displayed on the LCD screen, the opaque stripes will block the left eye. By separating the visual images of the left and right eyes, the viewer can see the 3D image.

2. Lenticular lens Naked-eye 3D technology.

Lenticular lens technology is also called biconvex lens or micro-lenticular lens. Compared with parallax barrier technology, its great advantage is that the brightness will not be affected, but the viewing angle will be slightly smaller. The principle of naked-eye 3D is to add a layer of lenticular lens in front of the LCD screen, so that the image plane of the LCD screen is located on the focal plane of the lens, thereby dividing the pixels of the image under each lenticular lens into several sub-pixels, so that the lens can project each sub-pixel in different directions. Therefore, when you look at the display from different angles, you can see different sub-pixels. However, the gaps between pixels will also be magnified, so sub-pixels cannot be simply superimposed. Make the lenticular lens and the pixel columns not parallel, but at an angle. In this way, each group of sub-pixels can repeatedly project the viewing area, not just project a set of parallax images.

The reason why its brightness is not affected is that the lenticular lens does not block the backlight, so the brightness of the image can be well guaranteed. However, since the basic principle of naked-eye 3D display is still similar to parallax barrier technology, resolution is still a difficult problem to solve. Currently, some panel manufacturers have planned to produce ultra-high-resolution panels for naked-eye 3D. If this is achieved, Naked-eye 3D the problem will be greatly alleviated.