Adinnieken on 25 August 2012
Pixel density and screen size are not the same thing nor are they interrelated. If you can fit more pixels into the same amount of space then you can achieve better resolution without increasing the screen size or pushing back the viewing depth.
There was a time, back in the 1980's and 1990's when the size of the pixel was just as if not more important than the screen size. LCD monitors essentially made that conversation moot as they tended to be uniform and much smaller than CRT monitors anyhow.
