An Apple patent application published on Thursday describes an advanced iPad Smart Cover containing illumination and communication elements that light up to alert users to incoming messages, low battery warnings and other notifications. As published by the U.S. Patent and Trademark Office, Apple’s filing for an “Integrated visual notification system in an accessory device” outlines a hardware product that serves as both a screen protector and active alert device. In many cases, iPad users rely on some type of covering to protect their tablets’ massive glass screens. Products like Apple’s tri-fold Smart Cover are popular add-ons to iPad purchases, but the accessories obscure the screen when closed due to the multiple layers of material needed to protect from bumps and scratches.