n. Technology that displays video content on many different screens, particularly multiple, synchronized screens.
2014
The 'nth screen' has been lingering around the tech world for several years, but is expected to hit the big time in 2014. It basically means devices that are able to connect and share content between multiple displays. Sharing is caring, apparently, and companies will let you connect their devices together for a greater user experience.
2013
The Samsung RF4289 and RSG309 are two new state of the art refrigerator freezers hitting the market on [sic] 2011….Both of these units incorporate an eight inch LCD screen and built in Wi-Fi wireless internet connectivity….These refrigerators are a major component of Samsung’s Nth-Screen "seamless connectivity" strategy.
2007 (earliest)
MultiMedia Intelligence specializes on the markets and technologies for delivering IP-based video to the 'Nth' screen. Looking beyond the classic 'three screens,' the company provides a multi-platform, ecosystem-based perspective.