This tip explains how to mirror the screen of your iPhone, iPod Touch or iPad on the Apple TV, with AirPlay.
Make sure your iOS device and Apple TV are connected to the same Wi-Fi network.
On your Apple TV: Go to Settings > AirPlay and Toggle AirPlay on. You can leave the other settings as they are; mirroring your iOS device with Airplay is simple and straight forward.
On your iOS device: Open the Control Center and tap on Airplay:
Select Apple TV and toggle Mirroring on.
That's it; the screen of your iOS device is being mirrored to the Apple TV. You can now enjoy your apps, watch videos or photos stored on your mobile device or play games on a larger screen.