Basic 20x4 Character LCD - Black on Green 5V
This is a basic 20 character by 4 line display. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes LED backlight.
Dimensions: 3.86 x 2.36 x 0.55"