Miracast protocol common in Android mobile phone projection screen smart TV

Miracast is an industry standard for Wi-Fi projection screens developed by the Wi-Fi Alliance and essentially an answer to Apple AirPlay. Miracast supports built-in Android 4.2+ and Windows 8.1 and Windows 10.

Allows Android smartphones, Windows tablets and laptops, and other devices to be wirelessly transmitted to Miracast-compatible receivers such as smart TVS and tablets. Miracast is already used by most TVS and Miracast is also used by Android phones.

Compared with AirPlay, Miracast has disadvantages and advantages. The advantages are:

  1. It is built into Andorid and Windows, and does not require the terminal device of Apple.

2.Miracast works well without a wireless router, meaning that a phone can be connected directly to a TV’s Wi-Fi network card through Wi-Fi Direct technology, which is convenient in the absence of a wireless router.

The disadvantages are:

  1. Only the screen image mode is supported, but the stream mode is not supported. The entire screen of the phone (including the status bar, etc.) is copied to the TV when you display the screen, and keep the screen playing and displaying at all times. Apple’s AirPlay lets you browse the web on your phone and play video from your phone through your TV

2.Miracast is, after all, an industry standard, and miracast implementations vary in quality from one manufacturer to another, allowing for poor experience between different devices.

Another problem is that the standard does not require the device to carry the Miracast trademark. Manufacturers have called their Miracast implementation something else. For example, LG calls its Miracast support “SmartShare,” Samsung calls it “AllShare Cast,” SONY calls it “screen mirroring,” while Panasonic calls it “display mirroring.”