The human eye has a physiological phenomenon, that is, the so-called "visual persistence", that is, after the image observed by the human eye is removed, the human eye still "sees" the image within 1/24 seconds.

By using the physiological phenomenon of "visual pause", the train window images are converted into more than 24 images per second in motion order, so that the optical illusion images move. When the train is running normally, the speed is stable, and the distance traveled per second is calculated. During this distance, more than 24 advertising pictures are arranged evenly with the height of the window, allowing people to see moving advertisements.

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The prospect of subway advertising:

As a modern special traffic advertising carrier, subway has the communication characteristics of ordinary outdoor traffic media, indoor POP and light box media, and its advantages are very obvious. However, on the one hand, the subway economy is in full swing, on the other hand, subway advertisements are somewhat creative.

From the point of view of advertisers, quite a few advertisers are not fully aware of the advantages of the subway. With the improvement of economic level, more and more people will give priority to the subway when traveling.

From the perspective of advertising companies, subjectively, domestic advertising companies have low entry barriers, a large number and uneven levels. Many advertising companies lack the research on Subway, so naturally they can't advertise for customers. Objectively speaking, subway, as a new media, has a relatively short development history, and domestic advertising companies have not accumulated much experience in this respect.

From the perspective of subway media's own operation, it is also a novice from focusing on technology to focusing on marketing. Due to the particularity of subway operation and management, advertisements in the platform need to avoid train operation and debugging when changing screens, which leads to a certain prejudice against the reaction speed of subway media in the industry, which is considered to be slower than other outdoor media such as bus bodies and outdoor bus shelters.

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