Just as the title said. Do upscaling dvd players use HDCP? Is it so because of the use of hdmi? Any ideas which ones are not using HDCP?

Thanks!

Yes, all of the HDMI connections have HDCP enabled. Only time when HDCP is not active is when you play a home-made DVD.

I stand corrected:
http://hometheatermag.com/discplayers/1205neuneo/

Lets put all the amazing stuff up front. First up, the HVD2085 outputs 1080p. As far as I know, this is the only DVD player to currently do this. It outputs 1080p from the HDMI and component outputs. That brings us to cool factor number two. The HVD2085 will scale DVD to HD resolutions with the HDMI and analog component outputs—not just some DVDs, but all DVDs. Good luck finding a "name brand" DVD player that does that. It is region free (cool factor number three), and, perhaps the biggest selling point for some people, its HDMI output doesn't pass HDCP.