Repairing a laptop screen can be a complex process, and it may be best to take it to a professional technician. However, if you want to try to repair it yourself, you will need to follow these steps:
Turn off the laptop and unplug it from the power source.
Remove the battery and any other removable components, such as a CD/DVD drive or memory card reader.
Carefully remove the bezel, the plastic frame that surrounds the screen, using a small flathead screwdriver or plastic opening tool.
Locate and remove the screws that hold the screen in place.
Carefully lift the screen out of the laptop, being mindful of any cables that may be attached to it.
Replace the old screen with a new one, making sure to connect any cables that were attached to the old screen.
Reassemble the laptop by reversing the steps you took to take it apart.
It's important to note that not all laptops are built the same way and the process for removing the screen may vary depending on the make and model. Also, it's recommended to consult the laptop's manual or an online guide specific to your laptop model before attempting the repair.