Hybrid LED / E-Ink Display
After many complaints about reading eBooks on the iPad, Apple has patented a hybrid display that consists of an LCD screen and an E-Ink screen. This display allows for switching between the different display types. Using the LCD screen for games or apps and the E-Ink screen for anything reading related. In addition to easy reading, the E-Ink display can save battery life since it does not use a backlight.
The hybrid display would consist of multiple layers. On top would be the touch interface, in the middle the E-Ink display, and underneath the LCD display. This new idea can open up new possibilities in display viewing.