LCDs are one of the easiest devices you can use to display the output from Arduino projects.This is a 20X4 LCD module, A New High-Quality 4 Line 20 Character LCD Module. Also has a Back-light.
LCD 20×4 can be used to display information from the Arduino or any sensor connected to it.
 
The values shown on the display can be either a simple text or numerical values read by the sensors, such as temperature or pressure, or even the number of cycles that the Arduino is performing.
Specifications
Model
LCD2004
Characters
20
Character Color
Black
Backlight
Yellow
Input Voltage (V)
5
Length (mm)
60
Width (mm)
98
Height (mm)
12
Weight (gm)
70
Features :
20 characters wide, 4 rows
Black text on the yellow background
The module can easily interface with an MCU
The module is a low-power consumption character LCD Module with a built-in controller
Single LED backlight included can be dimmed easily with a resistor or PWM.
Can be fully controlled with only 6 digital lines! (Any analog/digital pins can be used)