Is there a standard viewing angle for flat panel displays to get the best
definition and color?
I mean the up-down azimuth angle.
My wife insists on having the screen vertical but I like to have it facing
me squarely.
Standard? Not that I've heard of. With older LCDs the viewing angle was
rather narrow and straight-on was clearly the best way to go. Most modern
LCDs can manage a decent display over at least 20 (or so) degrees. One
argument for straight-on has nothing to do with the definition and color --
at an angle the display appears smaller (subtends a smaller angle) so you
can't get all that you are paying for. OK, so that isn't a strong argument
but it is true.
Bigger question though, why can't each of you simply tilt the screen to
his/her own preferences unless you are both trying to look at it
simultaneously? (when that happens next you can reopen the dispute)