It may be very hard to determine that short of emailing Chimei and getting it straight from them. Reason being that is a Chinese manufacturer that supplies vendors worldwide with similar displays having different model numbers.
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The only encouragement I can offer is I do know they make at least one 22" HDCP display now, Google searches and Prad have verified this. It may depend on when that unit was manufactured as to whether it's HDCP compliant. However the bidding appears closed for it now anyway.
I could not find any results on a Chimei "22ED" model, closest thing to it was a 223D. When I look at all the 22" Chimei displays Prad brings up though, none look like the one you linked to. If you'll notice the shape of the stand is different on all of them. Thus I would not count on that one you linked to being HDCP compliant.
http://www.prad.de/en/guide/ergebnis_vergleich.html?pradid=7fe0d79cbc82a93d74f02584871db934&7[]=0&8[]=0&10[]=0&12[]=0&13[]=0&14[]=0&15[]=0&16[]=0&17[]=0&18[]=0&19[]=0&20[]=0&21[]=0&22[]=0&22[]=4129&22[]=4130&22[]=4131&22[]=4863&23[]=0&24[]=0&25[]=0&26[]=0&27[]=0&28[]=0&29[]=0&30[]=0&32[]=0&37[]=0&38[]=0&40[]=0&42[]=0&45[]=0&46[]=0&47[]=0&50[]=0&52[]=0&55[]=0&56[]=0&57[]=0&65[]=0&70[]=0&82[]=0&108[]=0&order_by=price&order_order=asc&Submit=compare
It appears from the address of the seller of the display you linked to you're located in New Zealand? If so it would help if you told us what brands are commonly available in your area if you can't or don't want to get that display.