The highest resolution of the LG 31MU97Z is 4096 x 2160. That's over four times the resolution of the most frequently found supported graphics resolutions of 1920 x 1080 (HD 1080). This flatpanel monitor also has a supported graphics resolutions of 3840 x 2160.
This PC display's resolution (4096 x 2160) is actually the best resolution amongst all PC screens of this type and age.
Amongst similar types of PC display the worst resolution is 640 x 350.