How to connect to a display wirelessly

To project your Windows screen wirelessly you will need to use miracast. 

Miracast is a wireless technology your PC can use to project your screen to TVs, projectors, and streaming media players that also support Miracast. You can use this to share what you’re doing on your PC, present a slideshow, or even play your favourite game on a larger screen.

Note: You will need to make sure the external display you're projecting to supports Miracast.

1. Turn on miracast on your external device. Look into your devices manual to find out how. 
2. On your laptop, Click and Open the action center. Icon located on the right-hand side of the Windows taskbar.
3. Click Connect. A list of available receiving devices appears and your other computer should be on it.
4. Select the receiving device. You may have to wait a minute or longer for the devices to pair. It may also fail and you'll need to try again.
5. Toggle Allow input to on if you want to let the receiving device control your PC with its keyboard and mouse.
6. To choose what you see on each screen. Click Change projection mode and decide what you want to project.

• PC screen only. You’ll see everything on your PC. (When you're connected to a wireless projector, this option changes to Disconnect.)
• Duplicate. You’ll see the same things on both screens.
• Extend. You'll see everything spread over both screens, and you can drag and move items between the two.
• Second screen only. You’ll see everything on the connected screen. Your other screen will be blank.

    6. Click Disconnect when you want to terminate your connection.