To use an iPad as a second screen on a Windows 10 computer, you'll need to use a third-party app like SplashTop.

AirPlay, Apple’s innovative wireless technology, has transformed the way users share content from their iPhones and iPads to larger displays. Whether you’re looking to stream your favorite movie, ...

You can use split screen on an iPad to view multiple apps at once and multitask with features like Split View and Slide Over.