Hi gang

What it the better screen TFT or STN? Also the DVD and screen package combos I see on ebay are they any good? Ex for screen .....Pyramid or legacy.

Or does one have to go with the name brands IE... Sony. Panasonic?

Looking to get a simple system with two monitors that mount on the back of the headrest. Feel this would work better than the over head screen in my truck, plus If I use my van for a trip would be able to just move it over.