Check the Brightness Setting:
Check the display settings on your laptop to make sure the brightness is adjusted accordingly.
Adjust the Brightness : Use the brightness keys on your laptop to increase the level of brightness.
Check Contrast: Inspect your display options to verify that your contrast is correctly adjusting the brightness levels.
Check the Screen Resolution : Make sure your display settings are appropriate for the size of your laptop screen.
Inspect the Screen : If necessary, inspect the laptop screen for damage, or the connection to the laptop.