Blank Laptop LCD - How To Fix A LCD Display That Has Gone Completely Black If you can still see the desktop area faintly then your display is fine and you don't need to replace it. Just shine a torchlight or flashlight into the screen and you will see a dim sihouette of your desktop area.
When a LCD display goes partially or fully blank, it is most likely a backlight or inverter problem.
It can also be the wire that carries power to the backlight tube.
In either case, it is cheaper to replace the inverter or power wire than the whole screen. You can get replacement LCD
parts for $9-12 based on your screen size & brand.
Source Website http://LCDMonitorRepair.annics.com