First of all, I like to thank for taking your time to read my post. I recently stumbled upon this subject, which left puzzled. I know that CRTs CR is lower then that of LCD and PDP because pure black isn't need to achieve high contrast. I also know that that the human eye can only obtain contrast ratio of 100:1 and has 1,000,000:1 dynamic range. I recent found out that higher contrast doesn't mean more colors and that colors are determined by the display. For example, a consumer LCD can display maximum colors of 8bit as where CRTs are capable of displaying unlimited colors. Any information that you provide is greatly appreciated.