How can I change the size of an image sent to an LCD display?

by on December 8, 2008

Q: I’ve made a projector for my computer out of a 15″ LCD panel and an overhead. I dremeled out a lot of plastic to open it up to display more of the screen but I’m still losing about half an inch.

Is there a way that I could resize the computer’s output so that it doesn’t take up all of the panel? Meaning that I want to make the actual desktop and all smaller and bring it all within the viewable area rather than losing a little of it.