SAN FRANCISCO (AP) — Apple says it's introducing a laptop with a super-high resolution "Retina" display, setting a new standard for screen sharpnessj.

The new MacBook Pro will have a 15-inch screen and four times the resolution of previous models, Apple executive Phil Schiller told developers at a conference in San Francisco.

Apple already uses "Retina" displays — with individual pixels too small to be distinguished by the naked eye — in its latest iPhones and iPads.

The new MacBook will cost $2199 and up, and is part of a general revamp of Apple's personal computer line announced Monday.