I been researching on how to make my own projector now but I new sure what kind of monitor to get because the main reason why I would want to make this projector is to play ps3. but they're some monitors that are not compliant with the ps3 is this a fact?

I think you're talking about the PS3's "HDCP compliance" which allows it to play blu-ray discs. Each part of the video system has to be HDCP compliant- that includes the PS3 and the monitor in your setup. You should be looking for an HDCP compliant LCD, or if you're getting on of manhattan's kits, one with an HDCP compliant controller.

You can start with some research using this Google link: site:lumenlab.com +LCD +HDCP +PS3