New Delhi, Dec. 11 -- The Galaxy Z TriFold is Samsung's new foldable phone, and it can also work as a wireless extra display for your Windows PC. The phone supports Samsung's Second Screen feature, which turns the TriFold into a wireless external monitor. It uses the Miracast standard, so you can extend your desktop to the 10 inch inner display without any cables. Samsung already positions the TriFold as a phone that opens up into a tablet. When it is folded, you use a 6.5 inch cover screen like a regular smartphone. Unfold it, and you get a 10 inch display that runs a tablet-style interface and supports standalone Samsung DeX on the device. The phone also supports Extended Mode to cast its own screen to a monitor or TV. What is easy to m...