Today, most of our cellphones come with big and large display and yes, the problem is those smudges and finger prints, just pissed you off. As a result, Sony Ericsson has come up with a patent application for a self cleaning display. There will be a cleaning slider on the display connected to the handset’s opening/sliding mechanism. When close it, the slider will wipe the display by moving to the bottom and when open it going to wipe up the screen once again.