found it here

can it be used

would i need a controller

http://cgi.ebay.com/1-NEC-NL6448AC20-06-6-...1QQcmdZViewItem

Yes you would need a controller. Which might be quite difficult .

And reviews of it say it is not a good screen, very poor contrast.

did u get it?
Find a controller?

I have 2 cheap portable DVD players if you are interested they are the same ones that I used in my 7" build make me an offer let me know.

http://www.lumenlab.com/forums/index.php?showtopic=24768