When you try to open the Pip-Boy in Fallout 4 it opens to fill the screen and even in favor of the province.
The problem is bad running script in Fallout 4, because of which the Pip-Boy opens on the screen.
To solve necessary to install the patch, which governs the operation of this script.
Download – Fallout 4 patch 1.1.60
Set in the folder Fallout 4