buying advice shift registers

thank you! I might have to rethink my concept then. It's supposed to be some kind
of a wrist watch ;D .

In the pre-LCD days, there were LED wrist watches. The way they solved this is that they were off all the time. There was a button to make the display come on for a few seconds. There were also more advanced versions that had motion switches so you could swing your arm a certain way to get the display to come on.