Thanks for the replies. I think the display is a common part (or was at one time) in alarm clocks. It's marked "Longtex 6052L-S 971A" and of course I looked for that on the web first, but only found a list of devices it was used in (a short list). I was surprised to find that the pins were not done in a digit by digit way but rather pins were shared a different way. Maybe there was a reason they did it this way. It appears from looking at the board the display came from that it used a chip marked 8560 to drive it. I was hoping to just control it from software.