How can I restore my display settings in windows 10?

This is a basic setting on the windows Action Center. All you have to do is press the notification button, and press night light to turn it off.

Since my Creators Update does not have a "notification" button on the Action Center (which is actually "Security and Maintenance"), here is the canonical way to access the Night Light Setting:

Settings (on the start menu) -- System -- Display

Or,

Right-click on the desktop, and choose Display Settings.