A premium smartphone deserves premium-grade protection, isn't that so? And if the LG G2 is the phone you've gone for, then the official QuickWindow case is among the options you may pick from. It is an LG-designed flip-style case that protects the handset from wear and tear, all the while allowing one to interact with the device even when the cover is down. No, there's no telepathy involved. Simply, a vertical cut-out on the front enables time, weather, and call info to be conveniently delivered to the user, hence the accessory's name...
Source: http://www.phonearena.com/news/LG-G2-QuickWindow-case-Hands-on_id47349
Source: http://www.phonearena.com/news/LG-G2-QuickWindow-case-Hands-on_id47349