Hi at all!I'm playing around with the TV out library at the moment and wonder if it's possible to "hack" a cheap tiny LCD or TFT (like this one: http://imall.iteadstudio.com/im120419001.html or something alike, but not bigger than 2,5") to take composite signals. Not that I don't have enough composite displays anyway, but they're far from portable (as usual for most TVs . Bonus points if it's cheaper than 30$ .
While you might be able to provide a composite driver for such a LCD, but it is simpler to get one of the monitors made for car backup systems that can be powered by a 12v battery.
Adafruit sells several small monitors (1.5", 2", 2.5") that take composite input: http://www.adafruit.com/products/910.
I will say from personal experience be careful how you wire it up, as I reduced mine to expensive paper weight when I plugged ground into the hot wire, and vice versa.
I'M glad I'm not the only one making paper weights...