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  • 40x4 Character LD display (40-characters by 4 lines), Module size: 190x54mm, 
STN Yellow-Green background color, Transflective polarizer. Available in both 3V or 5V power supply options. 

This very large alphanumeric display has a background color that is easy to read and is powered by a single 5V power supply. This character LCD is built with a wide temperature range so it can be used indoors or outdoors.

40x4 STN Character LCD C404ALBSYLY6WT55PAB

Ships within 1-2 business days.

Product Description

40x4 Character LCD Display   |  SC# C404ALBSYLY6WT55PAB

AKA: 4004 Alphanumeric LCD Display
Module size: 190.0 x 54.0 mm

STN Yellow/Green background with Y/G LED backlight, bottom (or 6:00) viewing angle, Transflective polarizer, RoHS Compliant. Available in both 3V or 5V power supply options. This 40x4 has a wide temperature range: -20°Celcius to +70°Celcius which equates to (-4° Fahrenheit to +158° Fahrenheit).

STN (Super-twisted Nematic) provides a sharper image and wider viewing angle than TN (Twisted Nematic). The cost for STN if approximately 5% higher than TN. STN is an ideal fluid for outdoor products that need to be read at various angles.  The Transflective polarizer is a mixture of Reflective and Transmissive. It provides the ability to read the LCD with or without the backlight on. It will work for all lighting conditions from dark with backlight to direct sunlight which makes it the most common choice. There is no cost difference between Transflective, Transmissive and Reflective.


  • Low cost solution for a big display
  • Full documentation available for speedy integration
  • Selectable parallel interface
  • Dark letters on a light background make viewing easy in the daylight and nighttime
  • Very large alphanumeric display & high character count for products that supply status updates at a glance
  • Largest standard character display
  • Single power supply increases end product functionality



  • Mating connectors
  • Cables
  • Mounting screws
  • Demo boards
  • Development boards


Call between 7:30am to 4:30pm (MST) to talk to a real live human who will not send you to three different departments or to someone’s voicemail.  Call NOW for LIVE support.  (480) 503-4295

Warranty Information

Focus Display Solutions (aka: Focus LCDs) offers the original purchaser who has purchased a product from the a limited warranty that the product (including accessories in the product's package) will be free from defects in material or workmanship.

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