iMac with broken graphics card (Trumpington Ward CB2)

This is a 2007 model iMac whose graphics card no longer works. I was told by the people who diagnosed it that it's possible to use the screen to display video, and it seems a shame to just throw it away. So if you like tinkering with computer hardware and want a really rather big screen (51.5 by 32 cm screen in a 57 by 45 housing), perhaps you can make use of it. I've taken out the disk drive too.