QHD is not UHD. Yet Authentication?

Wikipedia Display Resolution
http://en.wikipedia.org/wiki/Graphics_display_resolution

FHD (1920×1080)
QFHD (4K) (3840×2160)  - 4xFHD
UHD (8K) (7680×4320)    - 16xFHD


Authentication ? It's a kidding?