One case that Apple has filed the application for, presents notifications and alerts which means that the cover doesn't have to be opened so much. Using LEDs or other similar components embedded into the plastic flap of the case, Apple could alert users when they have received an email or a text message.The level of illumination could be controlled by the user. The lights might form words, like HTC's Dot View case, or they could be a notification to iPad users. More important messages could be signaled using a special icon, that would be seen near the top of the case.
Another version of the cover could feature a translucent flap, allowing light from the iPad screen to shine through, possibly even revealing important notifications from the tablet itself. Another option laid out in the patent application, would be a cover with LEDs covered with a panel of cutout forms with varying translucency. This could be used for a feature like a countdown timer.
The patent was first filled in 2012 and there is not guarantee that Apple will use the technology for a new iPad case.
Apple has filed an application for an iPad case that protects the tablet, but also notifies and alerts the user about emails, texts and more
source: USPTO via AppleInsider