Please feel free to mirror your iPhone or iPad to an Apple TV or a smart TV functioned with AirPlay 2 by following steps.
Connect your iPhone, iPad, or iPod touch to the same Wi-Fi network as your Apple TV, AirPlay 2-compatible smart TV, or Mac.3
Open Control Center:
On iPhone X or later or iPad with iPadOS 13 or later: Swipe down from the upper-right corner of the screen.
On iPhone 8 or earlier or iOS 11 or earlier: Swipe up from the bottom edge of the screen.
Tap Screen Mirroring .
Select your Apple TV, AirPlay 2-compatible smart TV, or Mac from the list.
If an AirPlay passcode appears on your TV screen or Mac, enter the passcode on your iOS or iPadOS device.
To stop mirroring your iOS or iPadOS device, open Control Center, tap Screen Mirroring, then tap Stop Mirroring. Or press the Menu button on your Apple TV Remote.