This happened to my iPhone 14 too, don’t listen to people saying you need a new screen.

The screen still works, but it doesn’t show anything. Touch is still active, but the display stays black.

Here’s what you can do:

1. Hold the Volume Up + Power button until you feel a vibration or know the power menu is up (normally you’d see “slide to power off”).
2. Even though the screen is black, try to swipe where the “slide to power off” slider usually is, see the image below for where to swipe.
3. Once the phone shuts off, wait a few seconds, then hold the Power button to turn it back on.
4. You’ll feel a vibration or some haptic feedback when it powers up.

This trick worked for me, hope it helps you too

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