1. Push mode
Mainly used for screen casting videos and music, after screen casting, the phone can be turned off or chatted on WeChat, and the TV will not stop playing. Playing with your phone and watching TV is not a mistake. The most common is the TV button in video software.
The principle of screen mirroring push is to connect the phone and TV to the same WiFi and transmit data through the screen mirroring protocol. (It’s like a dedicated channel like Bluetooth). Click the screen casting button, and your phone will start searching for screen casting broadcast services on the wifi.
After searching for the TV on the phone, the phone will send a video address to the TV, and once the TV receives the address, it will start playing. After screen mirroring, the phone can control the progress, pause, next episode, volume, and other commands of the TV.
2. Mirror mode
It refers to projecting the screen onto a mobile phone screen or a computer screen; It means displaying on the same screen. Mainly used for screen casting mobile PPT, mobile desktop, PUBG King of Glory and other mobile games; It is an app with temporary screen projection functions such as Taobao, WeChat and Tiktok. The screen mirroring of Apple phones and the multi screen interaction of Android phones both belong to the mirroring mode.
Principle: It also relies on the local area network WiFi channel. After the phone searches for the TV and starts mirroring, the phone will continuously take screenshots, which is called screen recording. Recording the screen on one side of the phone is usually sent to the TV. Super fast speed of over 60 frames per second, when the TV receives it and displays it, it becomes a same screen function.
Mirror protocols include: miracast, airplay mirror (Apple’s, WiFi LAN transmission)