If I still get a faint picture with the bright light aimed at it, do I need to replace the display lcd?

[fazlab]

Laptop screen is black but works with an external monitor. I shined a bright light at the screen and I do get a very faint picture. Does this mean I need a new monitor or a REPLACEMENT LAPTOP 15.6" LCD LED Display Screen?

 

[popatim]

It usually means you have to service the backlight, either an array of led's or a cfl tube or two.