Hi, I would like to model a "billboard" for a display on a train layout. This display would be a grid of 60 ltp747r 5x7 common cathode matrices that would be driven from a pic 16f877. The display would be arranged as 12 5x7 chips across by 5 chips down. My initial question is a confirmation of what kind of power would be needed at a 20% duty cycle given a 13ma datasheet normal brightness level at 100% per led. I am trying to figure out what to drive the rows and columns with, especially the rows where I'm not finding too high a rating on what I think are needed pchannel mosfets (hexfets). Any initial advice on this project is much appreciated! Thanks.