This article describes how to use your TV as a monitor with a Windows computer. It also describes the advantages and disadvantages of doing so.
How to Use Your TV as a Computer Monitor – Updated 2020
Assuming you have the right cable and you know that your TV and PC support each other's resolution(s), all you need to do is connect them together and turn them both on. Make sure the TV is set to the correct display connector, depending on which one you used to connect it to your PC, and you should see your login screen appear within a few seconds.
If you feel like the resolution isn't quite what you expected, or if it looks blurry, you may need to manually set the correct resolution. To do this, follow these steps:
Search for Advanced display information in the Windows search bar and select the corresponding result.