Dell Laptop LCD question

I have a dell laptop that the LCD screens seems to have stopped working on. I have a question though. The screen appears to be blank although when I shine a light like say a flashlight against then screen you can see all the icons. What could be wrong with it. Do I have to replace the LCD screen or just replace a bulb?

Any thoughts or comments.

 

Sounds like the backlight has failed.

It's not usually "a bulb" though, its often integrated with the LCD panel itself.

It could be the electronic ballast that drives the backlight as well.

Sounds like a service call.

 

Yes usually the entire screen needs replacing (the backlight is built in) or the inverter assembly on the back of the LCD has gone bad. There are companies on the web that repair backlight\inverter problems other than Dell. BOL