Using 16f690 pic / interfasing key pad and 2 x 7 segment displays , problem

, good afternoon.

I need some help please or ideas.

The code below Works well for 1 7 segment display. I press the number in the key pad and the number is shown without problem.

I am adding a second 7 segment display, and the idea is to control both (multiplexing port C) with 2 transistors (see below)
I have not implemented yet the circuit since I want to have a clear idea how the software should work for the multiplexing and graving the right binary patern to light each display.

In...

Using 16f690 pic / interfasing key pad and 2 x 7 segment displays , problem