15" MacBook Pro Vertical Striping Issue
MacRumors reader-submitted photos of the issue
According to affected users, the striping appears to occur when the display is changing brightness, often when waking from sleep or powering up or taking pictures with Photo Booth. To temporarily resolve the issue, users have shut and re-opened the lid or used the ctrl-shift-eject keyboard combination to reset the LCD.
This particular issue has been documented by several sites over the past several months, however Apple has yet to respond in any formal manner.