Yes, you’re free to surely do this using Windows Wireless Connect.
All devices that support Miracast technology can use this dual display feature.
Since Miracast connects using wireless, the user is relieved from using any cables or ports.

This could be a huge productivity boost, with additional screen space at your disposal.
It is more like projecting one display to two laptop screens.
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Why use laptop as monitor?

I can think of several scenarios where dual screen is better than one.
Since we are only interested in Windows 10 display, well talk about it in this article.
How to use laptop as monitor connecting two displays
Lets begin with the basics.

We need two Windows 10 computers for this purpose.
This could be a Desktop PC or another laptop.
Now lets start with the configurations.

Lets start with the secondary computer.
Lets start by installing the Connect app.
The Connect app needs to be running to connect to this laptop or tablet wirelessly.
Once this is done, we can move it to our primary computer for further configuration.
The above-mentioned method works only on Windows 10 devices, including Desktop PCs, laptops and tablets.
If you are using Windows 7 or older Operating System, you will need third-party apps likeSpacedesk.
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source: www.itechtics.com