Using a monitor to extend your laptop's display, or to give you a bigger screen for work or play can be super useful. Here's how to do it.

Duet Display lets you use any Android device as a second screen for your Mac, whether wired or wireless, giving you extra space for multitasking.

Second monitors are a thing of the past: Introducing a new "rollable" laptop from Lenovo that hides a new way to extend your screen size with no additional products. Unveiled at this week's annual ...