How discernable is 1080p over 1080i ?

[welwynnick]

Originally Posted by MSG33

If the calc is based on being able to discriminate PAIRS of pixels, you'd need to sit twice as far away, not twice as close.

Yes, I meant to say that everyone has been suggesting that we need to sit twice as close as the resolution criterion really implies, so I'm supporting what you say about the visibility of 1080p displays.

If we assume the limit of resolution amounts to one pixel per minute of arc, then the minimum viewing distance is 3438 pixels away from the screen.

If we now assume that the limit amounts to two pixels per minute of arc, then the minimum distance for any display becomes 1719 pixels.

That means that we will indeed se the benefit of 1080p displays where many people assume it will make no difference.

regards, Nick