The lowest power digital signage

From shelf-edge labels, smart meters and security tags to wayfinding, transportation and retail signage, digital signage applications have several things in common;
they require a robust display which is high resolution, easily legible and always on.

Glass-free electrophoretic displays (EPD) tick all of these boxes whilst at the same time consuming very little to no power at all.

When epd becomes a must

So, what is digital signage? Commonly used for logistics, wayfinding (indoors and out), exhibitions and outdoor advertising, digital signage uses a range of display types, including EPD, LED, OLED and LCD digital signage display screens to present useful information to the user. However, depending on the end application there are occasions when EPD really is the only option for digital signage displays.

great outdoor reading experience

low power despite being always on

thin and lightweight for optimized label and signage build

glass-free, robust and shatterproof

Reflective for great outdoor digital signage

When it comes to displaying information outdoors, you want your content to be legible in all conditions.

Whether on a beautiful summer’s day with the brightest sunlight, on a rainy autumn afternoon or on New Year’s Eve at midnight (in this case a front light should be integrated), Lectum® displays are always easy to read because they are reflective.

This is a clear advantage over LCD and OLED, where bright sunlight can often impede the reading experience.

The lightest digital signage solutions

Lectum displays are glass-free making them thinner and more lightweight per square inch than their conventional EPD counterparts, which are manufactured using silicon on glass.

And because they are plastic displays, Lectum displays are not only extremely robust but also shatterproof. This means digital signage solutions can now be much more durable, which is perfect for applications where digital displays are exposed to wear and tear, for example in logistics and shelf edge labelling.

Always on; always saving energy

Wouldn’t it be great if you could implement a digital signage solution and actually save energy and money? Well you can with Lectum displays because they are bi-stable. As such, energy is only required when updating the display, but not to maintain information on the display.

This is a particular advantage for applications where paper is being replaced, since maintaining an always-on screen can be extremely energy intensive. This is why these displays are often called electronic paper (or e-paper) displays.

Furthermore, Lectum displays can be updated remotely making them an ideal component for autarkic public transport timetables for smart cities and thus saving on printing and transport costs simultaneously.

Our experience – your product

Having worked with several customers on a range of logistics and signage products, our team brings extensive experience in the integration of EPD in digital signage systems. Both small and large reference designs are available for your convenience. We also offer bespoken display solutions.

Discover how easy it is to integrate our flexible EPDs and order samples today!

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Our glass-free Lectum displays can be integrated in a wide range of applications and are considered particularly well suited for smart cards, but also for products in the markets:
Smart cards
Mobile Devices

Signage - FAQ

What is the resolution of Lectum displays?

The resolution of our Lectum displays varies depending on the size. Please refer to the respective datasheet for more details.

How many gray levels do Lectum displays have?

Lectum displays can have up to 16 gray levels. However, this number can vary depending on the display size. Please refer to the respective datasheet for more details.

Are Lectum displays available in color?

Lectum EPDs are not currently available in color. In the past, the company has demonstrated the ability to produce color displays, however, this process has not yet been industrialized for mass production.

Is video possible on Lectum EPDs?

Plastic Logic Germany has demonstrated animation (12 fps) on its EPDs. However, the faster update rate of the electrophoretic display media, which is required, results in a much higher power requirement than usual as well as a decrease in the display lifetime.

Which size displays are available?

Plastic Logic Germany manufactures and sells EPDs in a range of sizes and configurations. You can find detailed information on our offering here.

What if I require a different sized display to those offered on your website?

We also offer tailor-made display solutions in addition to the reference designs listed in our product portfolio. Custom projects are subject to NRE and a minimum order quantity.

How heavy are Lectum displays?

A display’s weight depends on its size and configuration. Please refer to the respective datasheet for details.

What is the temperature range for Lectum displays?

Depending on the size and configuration, Lectum displays can operate in conditions of 0°C to 40°C or 50°C and can be stored between -25°C and 40°C or 50°C, whereby the image remains unaltered.

Why is the temperature range limited?

The temperature range for Lectum displays is determined by the electrophoretic display media used, which consists of microcapsules filled with a clear fluid. Low temperatures raise the viscosity of this fluid typically resulting in a slower response time for image updates. That is why the manufacturer states operation at a minimum of 0°C.

What is electrophoretic technology?

Electrophoretic technology refers to the process whereby thousands of microcapsules, containing (negatively charged) black and (positively charged) white pigments suspended in a clear fluid, are encapsulated in a plastic sheet.

When a charge (positive or negative) is applied, the corresponding particles move to the top of the microcapsule and the surface appears black or white in this specific area. When the charge is removed, the particles stay where they are. This is called bi-stability: where something can rest in either of two states.

In the case of an EPD, the text and/or images remain on the screen until the next update and the user can continue to view the content without the need for battery power. This means EPDs are inherently low-power and is one of the main differentiators to conventional backlit flat panel displays, where a constant power supply is required to maintain content.