Three-screen simultaneous display means that three screens display the same content. In this case, the contents displayed on the three screens are exactly the same. This display mode is mainly used in some specific application scenarios, such as some commercial exhibitions or teaching and training that need to watch multiple screens at the same time.
Three-screen display means that three screens display different contents respectively. In this case, three screens can be used in different application scenarios, for example, one screen is used to watch videos, another screen is used to browse web pages or run other applications, and the third screen can be used to display some specific information or perform some specific operations. This way can make better use of the respective characteristics of the three screens to achieve a more efficient work or entertainment experience.