Hello luke5129,
Thanks for using the Apple Support Communities. We understand that you're having an issue with the display for your MacBook Pro. There are a couple different troubleshooting actions you can try for this issue.
Go ahead and restart or force restart your MacBook. To Force restart, press and hold the power button on your Mac for at least 10 seconds, then release.
If the issue continues, try performing both a SMC and NVRAM reset. The articles below will assist you with each process.
How to reset the SMC of your Mac
Reset NVRAM or PRAM on your Mac
Should the issue continue once those actions are performed, you can try booting up into safe mode and see if the issue persists.
How to use safe mode on your Mac
Keep us posted on how it goes.
Best regards.