15 by 15 pixel screen.

[CMOSprinkles]

I know of a fast decoder design, but it causes 2 tick pulses to blink from the wrong lines. I just used a 1 wide tileable short pulse detector that doesn't allow 2 tick pulses to pass through and it works just fine. I understand if you're not interested because it requires the short pulse detector, but if you are I can provide a world download or MCEdit schematic.