I agree it looks like the screen, but update your video driver first to be sure. Check optional Windows Updates after enabling Device Installation Settings
. Then check the HP Support Downloads webpage for your model. If you have the latest, in Device Manager uninstall it and reboot PC to reinstall. Driver Install - Device Manager
If within the first year you have full factory warranty. Start with HP Tech Support to set up an RMA to ship it back for replacement. They may walk you through some steps to confirm what it needs exactly.
If not this video will show you what's involved with checking the connections or if necessary replacing the screen on your make, so you can decide if you want to try it or take it to a shop. You can google for a more exact model: