The Acer 206HQ has a maximum resolution of 1080p. That's 50% more resolution than the most frequently found video mode of 720p (which is also found on this LCD screen). This PC screen also has a 1080i video mode.
A 1080p video mode is actually the best resolution amongst all small monitors that are a similar age to the 206HQ.
Amongst similar types of flatpanel monitor the worst resolution is 480p.