3D glasses in movie theaters are generally made of polarized lenses, and the cost is not high, but the projectors that play 3D movies must also have a pair of polarized lenses to see the three-dimensional effect through polarized lenses. If you wear this kind of glasses to look at the LCD/LED display screens of ordinary computers or mobile phones, most of them are bright and dark, and the colors are not accurate. Some 3D TVs use polarization technology, which is similar to movie theaters. They play 3D format film sources (three-dimensional Blu-ray DVD), and use the correct polarization glasses to see the three-dimensional effect. The principle of polarized glasses is the same, but the products of each factory may not be unified and may not be universal. There is also an active stereo glasses that directly control the occlusion of the left and right lenses. The field of view is brighter, but the glasses are bulky and require batteries and a signal source. On a computer, the control signal is obtained through an IR jack on the graphics card. Use infrared or directly connect to the glasses to control. To view this kind of image, you need a corresponding graphics card and glasses, as well as a monitor with a relatively high refresh rate. It is generally used for high-end games or some scientific research projects. It is estimated that there are not many movies that support this format.
