Originally posted by kbrkr:
Or you could purchase one of these and edit and trigger it from you Laptop computer:
http://www.electronicdisplays.com/prodcat/default.asp?cstop=4&pcid=18

This is the sign I wrote of in the original post that Sam's Club sells. For low-tech, I assume it could be triggereed off/on with a footswitch or something. I know little about electronics but I assume just a simple off/on footswitch would work.

One more thing to consider, my Tyros has a video out jack which can be output to a TV. The Lyrics display from a MIDI file can be displayed on the TV screen.

Couldn't you edit a midi file and display it on a TV to accomplish your objective?

Yes, but this is more cumbersome (for this particular idea) than I wish. Carrying around a tv, I'd rather not for just this purpose. Just searching for ideas, including low-tech solutions.