If you want to try repairing your LCD display, you can check the Google or view my experiences with an HP f1703. There are over a hundred comments too, many people are successful, some aren’t.
If you’ve given up, Luke Sluder recycled his display like this. (via Make: Blog: Why throw stuff out?).
Luke, leave a link to your new stuff when you put it up. Cool stuff.
I’ve never seen the blue spot problem but I googled “light engine” “blue spot” and found this thread.
Hey thanks for the mention of my project! I’ve got a few other things in the works but I can’t talk about them just yet…
On a side note, would you happen to know what causes the infamous “blue spot” in TVs to appear?