Title basically says it all. Ohio doesn't release the viewing area, but the structure will be 124*42. They'll be adding new speaker systems throughout the stadium as well. For reference, our scoreboard structures are 108*62 (I couldn't find dimensions for Sparty's new boards). Ohio Stadium will also get text ribbons on the side opposite the scoreboard and HDTV's in the concourses.
The new HD, Panasonic scoreboard will be 42-feet-by-124-feet - the current scoreboard is 30-by-90 and is not HD - and will utilize Surface Mount Diode LED technology that will provide a sharper, clearer and brighter picture with extra wide viewing angles of over 140 degrees.