Apple is looking to improve display technology on its next generation iPad, and we're not just talking about a Retina display resolution. A patent filed by Apple in the first half of 2010 reveals designs for dual OLED backlights, as reported by Patently Apple. The diagram below shows a cross section of the OLED backlight layers.
Part of what makes this technology so impressive is its simplicity. Current LCD displays have multiple layers requiring more thickness, and as has been seen in the past on the iPad and iPhone, they can be prone to manufacturing problems. Light leaks and yellow discoloration have been reported on some defective units.