Yeah, I was just following this up to correct myself. It actually appears the inverter
is the more likely.
My own experience with the inverter was zero image, but that was on only the one laptop, so hardly conclusive.
If you intend on replacing it, do yourself a favour and have a damn good look for a service manual. It will take away 95% of the pain of dissembling a laptop. And take extra care when disconnecting keyboards, touchpads and anything else that uses a ribbon cable held in place with a fragile zif connector.