Since Google ends up in this thread regarding this problem and Vegas123 doesn't answer his messages, and no one did actually posted the solution, I had to remove the flicking (and dying) display board to get the part number myself...
The display board is sold as a whole piece :
Manuf: EVERBOUQUET
Part No. : MC16021E8-SBLW (For Virus Indigo 2 (Blue))
I made an order from Element14 / Newark (
http://canada.newark.com/)
Newark Part Number:
97K4628
$28.08.
Hope this can help others.