The visible display measures only 2.0" (50.6mm) diagonal, Raspberry Pi NTSC/PAL (Television) TFT Display - 2.0" Diagonal comes with a NTSC/PAL driver board. The display is very easy to use - simply connect 6-15VDC to the red and black wires, then connect a composite video source to the yellow and black wire. There's a little button to adjust the LED backlight brightness (5 levels) - there is no other adjustment available but the color and contrast look great right out of the box.
It will also work connected to any analog composite-video output such as a YBox or Propeller w/Video out. It will not work with a device that only outputs VGA, HDMI or any other digital video signal.
Note: These miniature displays are very delicate and require care to avoid ripping the delicate flex connector. These are best used by electronics geeks who have experience and are comfortable working with delicate electronic components.
Adafruit Website: http://www.adafruit.com/products/911