They didn't say "just two companies" - read the report!
"Brussels suspects Philips and LG may have been part of a wider cartel."
Perhaps they may have cause to suspect they were the ringleaders. They may be right, they may be wrong - but if they have any evidence at all they should investigate. And I can't see what Stuartlis links have to do with it. It's not a monopoly situation they're looking into, it's a price fixing cartel.
Monopolies and cartels are the bane of a free market (along with other things of course).
I certainly did read the report in the link - I was seeking to point out that there are several very large manufacturers of LCD panels - Sony/Samsung is one of the largest and Sony also has a tie-up with Sharp.