Backlight gone on Inspiron 9200?

[Yeti]

I've had this laptop for a couple of years. The last couple of days the screen has been flickering a ton. Now it's gone near 100% dark, I can just about make stuff out on the screen.

I guess the backlight has gone? But when I turn the laptop on the very first screen (the dell loading whatever screen) is fine. All the rest of the BIOS/loading stuff is near invisible though. But when Windows is nearly loaded I can see the mouse cursor very clearly for a split second like normal. Very weird.

So any ideas? And what cost are we looking at to repair this? Assuming the TV-out will still work fine I'll probably just buy a new laptop tomorrow and just hook it up to my monitor when I get back from vacation and get the stuff off it.