20x4 Graphical LCD 2004A Q3 C1

20x4 Graphical LCD Display Pinout

Specifications:

Wide viewing angle and high contrast 

Industry-standard HD44780 equivalent LCD controller built-in 

+5V DC LED blue backlight 

Don't need a separate power supply for the backlight 

Supported 4 or 8-bit parallel interface 

Display 4-line x 20-character 

Operate with 5V DC 

Operating Temperature -20°C to 70°C

Dot Matrix 5×8 Dots

 

Product Description

We know that each character has 40 Pixels and for 80 Characters we will have 3200 Pixels. Further, the LCD should also be instructed about the Position of the Pixels. It is a hectic task for the microcontroller, hence Driver IC like ST7066 is used, which is mounted on the backside of the LCD Module.it takes data from the Microcontroller and processes them to display on the LCD Screen. You can use it in 8 bit parallel interface or 4 bit parallel interface mode if you need to connect fewer lines to the microcontroller.

 

Comparison between 16*2 LCD and 20*4 LCD

There are not many differences between the two LCD screens apart from the obvious one that 16*2 can display only 32 characters and 20*4 can display 80 characters. So you have to choose the display according to your needs. If you need a display to show a lot of data then go for 20*4 size and if there is not too much of data to display then go for 16*2 LCD. It also depends on the packaging size of your project. If space is at a premium then go for smaller sized 16*2 else its 20*4.

 

Package Includes:

1 x 20x4 Graphical LCD 2004A

 

Additional Resources

20*4 LCD Display Datasheet

Arduino Project with 20*4 LCD screen

Arduino Library for 20*4 LCD screen