If the iPhone and TV are in the local area network, the screen can be projected onto the smart TV through the AirPlay function. If the TV and the mobile phone are not in the same location or network, you can use the screen projection software to project the screen remotely.

The following are the detailed steps to project the iPhone to the LAN smart TV:

1. Make sure that iPhone and smart TV are connected to the same Wi-Fi network.

2. On the smart TV, turn on the AirPlay function. The specific operation method may be different for different TV brands, and the AirPlay option can usually be found in the settings menu.

3. On the iPhone, slide the screen up to open the control center. For iPhone X or later devices, please swipe down from the upper right corner of the screen.

4. In the control center, find the AirPlay icon (there is a triangle in the rectangle). Click the icon.

5. You will see a list of available AirPlay devices. Select the smart TV you want to filter.

6. If necessary, please enter the AirPlay password. This is the password set on the smart TV to confirm the screen connection.

7. Wait a moment, and the content of the mobile phone screen will be projected on the smart TV.

The following are the detailed steps of remote screen projection from iPhone to smart TV (as well as mobile phone, tablet and computer):

1. Open the AirDroid Cast application or function on the TV.

2. On the iPhone, go to the App Store to download and install the AirDroid Cast application.

3. Open the AirDroid Cast application on the iPhone and enter the screen projection code in the TV.

4. The TV confirms the screen projection request, and the content on the iPhone screen will be projected on the TV.