elec_lover: Thanks for the good links!
I was planning to multiplex this LCD, but i suppose that wouldn't be possible.
I was thinking of connect all wires (A-G) of all digits parallel, and control with the ground on each of the digits which one to set, which would mean i just need (7 + 6=13) uC ports to control the display.
That would be possible with led displays, right?
But that wouldn't work here, would it? I mean i can't control what digit to write to. If i put all the lines parallel i will set the same number to all digits.