Samsung unveils USB monitor for notebooks
Confused over different display interfaces like VGA, DVI, Dual DVI or HDMI? Forget it, because Samsung Electronics unveiled 'LD220', the world's first a USB monitor dedicated to notebook PC during World IT Show 2009 in Korea market. Even though it’s targeted towards notebooks, nothing can stop you from using it on your PC, although your PC will already have the required display ports to plug in a traditional monitor.
The monitor supports 300cd/m2 of brightness, 30,000:1 contrast ratio and 5ms response speed.
[via Aving]
Sorry, but it's not the first USB-monitor...
http://arstechnica.com/hardware/news/2007/10/get-your-usb-on-with-samsungs-940ux-lcd-monitor.ars
@Bjørn Eirik: Thanks. Article corrected.