Do you know that a 3-colour backlight can improve legibility of the display?

Normal, service or critical mode? Any statuses of your device can be easily distinguished by a simple backlight colour change.

This is an archive article published 01/09/2018. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

It´s a well-known fact that a human brain can more easily and quickly understand a picture or pictogram rather than ordinary text. In cases when your device displays various parameters or it works in various modes, it´s very beneficial for the user to be able to easily distinguish its status – for example, whether a measured parameter is OK or it exceeded some defined value.

Imagine the situation that if the displayed parameter has value of say 40-80%, then everything is OK. But anything out of this range creates an error status and it´s worth to highlight it. Naturally a common way is to use for example buzzers, but it´s not always desirable for a device to beep every while, especially at more complex workplaces with a lot of devices when it´s very hard to differentiate which device is beeping.

A visual signalisation is optimal for such situations, which can easily be achieved by a simple backlight colour change. In contrast to common character of graphic modules with a fixed backlight, EA DOG series displays from company Electronic Assembly enable to choose a desired combination of display + backlight.

In majority of cases, the backlight is monochromatic (yellow, amber, white, blue, …) but 2-colour versions as well as 3-colour versions like new EA LED94x40-ERW dedicated for EA DOGM series modules are also available.

Efficient LEDs used in the module and a relatively high max. operating current of 75-120mA (depending on a colour) guarantee bright, easily readable displaying even at strong ambient light. Similar 3-colour backlight intended for smaller modules EA DOGS series is called EA LED36X28-ERW.

In case of interest in any EA DOG or EA OLED series displays, please contact us at

Advantages / Features:

  • compact LCD character and graphic modules with a selectable backlight – various combinations are available
  • high quality displays with a relatively high contrast
  • extremely low power consumption (without backlight), typ. 100´s of uA
  • extremely flat: only 2.0 mm without backlight and 5.8 mm with backlight
  • can be soldered directly into the PCB without any further assembly
  • character displays: 4-bit, 8-bit and SPI interface
  • graphic displays: SPI interface, some also I2C
  • single 3.3V or 5V power supply - also for the LED backlighting
  • temperature range -20..+70°C, integrated temperature compensation

Do not miss these articles

Do you like our articles? Do not miss any of them! You do not have to worry about anything, we will arrange delivery to you.

Main products

in stock 3 pcs


Accessories for Displays

LED Backlight for EA DOGM240-6 Green/Red/White

Ord.number: 288171


1 pcs+ 20,80 €

2 pcs+ 19,80 €

4 pcs+ 19,30 €

16 pcs+ 18,00 €

  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
in stock 10 pcs


Accessories for Displays

LED Backlight for DOGS104x-A Green/Red/White

Ord.number: 214779


1 pcs+ 9,63 €

2 pcs+ 8,96 €

10 pcs+ 8,22 €

40 pcs+ 7,52 €

  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
Do you agree with cookies being stored?
Welcome to the SOS electronic website. Before you enter our online world, we would like to ask you to allow us to store cookies on your browser. Your consent will help us view the site without error, measure its performance, and track additional statistics. Apart from that, we can bring you an offer of our products and services, literally tailor-made. We also provide cookies to third parties. However, you are definitely safe with us.
The proper operation of the website
More stable technical control
Better marketing offer

More about cookies
More about personal data processing