LED with a transistor on each side
Something like this may work for you (2 x 2 matrix shown). Part numbers and values are placeholders, but you'd normally want the drivers without series resistors to have lower base resistors because they're going to be handling much more current than the other transistors (but for much less time). The drive voltage for the high side drivers (PNP transistors) has to swing up to the +5V supply in this case to turn them off. 







simulate this circuit &ndash; Schematic created using CircuitLab