The highest resolution of the NP-PA622U is WUXGA (1920x1200). That's over two times the resolution of the most frequently found projector native resolution of WXGA (1280x800).
A WUXGA (1920x1200) projector native resolution is in fact the best resolution across all data projectors of a similar spec and age to this projector.
The worst resolution across similar types of data projector is WXGA (1280x800).
What does "projector native resolution" mean?