When a laptop screen goes black, it can be alarming, but the cause is often hardware-related or due to display connection issues. First, check for any obvious power issues; ensure the battery is charged, and try connecting the laptop to a power source. Sometimes, adjusting the brightness or toggling the display output (often done by pressing the 'Fn' key with another key like F4) can resolve the issue. If the screen remains black, connect an external monitor to the laptop. If the external display works, it indicates a potential screen or cable issue within the laptop. For laptops with removable batteries, disconnect the battery, hold down the power button for 30 seconds, and then reconnect it to see if it resets the display. If these steps don’t work, it may be a graphics driver issue; start the laptop in Safe Mode and update the graphics drivers. Persistent problems could require professional inspection to diagnose issues with internal components such as the motherboard or screen connectors.