This will allow you to update the display in a single step; a lot of example circuits skip this, it causes a slight glow as the led are turned on as the bits are shuffling through. You'll need to ...

Measuring 0.92 x 0.65 x 0.21 in., the OEM 4-LED alphanumeric display provides four red independently addressable 0.31-in.-high digits with three decimal places. The device takes 5 V at 20 mA, a 12-pin ...