LG 38CK950N-1C
3840 x 1600 pixels, 37.50"
LG 38CK950N-1C
3840 x 1600 pixels, 37.50"
It seems that this All-In-One would be able to be used as a screen.
The best thing to do is to look on the back if the HDMI/DP ports are labelled IN or Input and if necessary consult the manual to see which ports can be used and how to change the input.
And no, Windows does not have to be installed, the change of input is solved from the display and not by software.