Screen
Apple specifically designed the screen to have a pixel-per-inch rating that surpasses the eye’s ability to tell each pixel apart. Apple claimed that this threshold was about 300 ppi at a given distance (10 inches or so) so they made the screen 326 ppi with a 960×640 display which is 4x the resolution of previous iPhone. Just to clarify, the increase in resolution doesn’t mean more space on the screen. Instead, Apple scaled up graphics of the entire OS to 4x their original size to fit the new resolution. The result is an extraordinarily crisp screen that makes you wonder how you ever lived with the low res 480×320 screens on the old iDevices.
iPhone 4 Review
Posted by Admin on 00.15