Displays for low-power devices

Displays for low-power devices

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The display specialist Electronic Assembly GmbH (Gilching, Germany) has created the versatile EA DOG product family especially for low-power handheld applications. They are all operated at 3.3 V as standard and require hardly more than 150~350 µA. Also the optional LED illumination is designed for 3.3 V. The brightest white LED runs from 3 mA.
By Christoph Hammerschmidt


The panels, which are only 2 mm thick, are currently available as text and graphic displays in 10 different sizes and five different display technologies: as transmissive, reflective or blue STN as well as positive or negative FSTN. The displays can be combined with six separate backlights in white, amber, blue, red, yellow/green and full colour. Due to the compact design, an extremely flat display module with a maximum height of 5.8 mm results when combined with lighting. It can be soldered directly into the circuit board with 2.54 mm pitch without any additional mounting effort.

The text displays are available with 1 x 8, 2 x 16, 4 x 10 as well as 4 x 16 and 4 x 20 characters. The graphic variants are available in the resolutions 122 x 32, 102 x 64, 160 x 104, 240 x 64 and 240 x 128 pixels. The outer dimensions vary between 39 x 41 and 94 x 67 mm. All displays have an SPI interface, the text displays also have a 4/8 bit interface and some displays can also be addressed via I²C. Thanks to integrated temperature compensation, the thermal application range of the displays is from -20 to 70 °C.

As a further special feature, individual EA DOGs support English, European and Cyrillic character sets within a single display. The displays are available in large quantities as well as small quantities at short notice. Electronic Assembly guarantees a long-term availability of up to 10 years. Developers are provided with a simple system start and prototype creation, a USB test board with PC connection and suitable Windows software, including a free simulator and lots of C and microcontroller code.

More information: https://www.lcd-module.com/

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