I’m doing a 16 rows & 48 column LED matrix design. The attachment shows only one row & some columns.
I’m scanning rows @ 1/16th rate. Designed for 4mA average current to the LEDs. I’m doing a 5V design (PIC & shift registers working on 5V), but For LEDs I can increase supply more than 5V.
My LEDs are bit dim.When I increase the LED supply voltage to 6.5V then the brightness improves.But I'm not sure is that voltage is too much for LEDs.
I use 3V LEDs.I need to make imrovements in my deisign.What modifications needs to do to make a brighter display?