The world’s first flexible, glass-free epd

Discover the first fully-flexible, glass-free, active-matrix
electrophoretic display (EPD) on the market: Lectum®.

A basic display

Imagine a sandwich without any filler; that’s your basic display. The slice of bread on the bottom is the so-called backplane – usually a matrix of transistors. The slice on top is called the frontplane – the respective display media driven and controlled by the backplane.

The majority of displays currently on the market traditionally use a backplane made of silicon on glass.

If you want to make a flexible display, however, you need to manufacture a flexible sandwich.

Flexible display structure

Making displays flexible

At Plastic Logic Germany, we have successfully industrialized a process which enables us to create a glass-free backplane. We are the first company worldwide able to manufacture transistor arrays (basically a matrix of transistors) on plastic.

Instead of using traditional silicon transistors, our active-matrix backplane consists of organic thin film transistors (OTFTs) on PET; that’s exactly the same plastic used to make cola bottles. This means that a flexible backplane can now be coupled with a flexible display medium, such as flexible OLED or flexible EPD, to create a fully flexible display.

  • Robust and shatterproof
  • Ultra-thin and lightweight
  • Low-power
  • High resolution
  • Extremely legible
  • Production-ready
  • High yield
  • Proven in the market

Lectum®

Lectum uses an electrophoretic plastic frontplane and is the first flexible, glass-free display in volume production.

These high-resolution displays afford the same reading experience as with paper, including an ultra-wide viewing angle. But being completely made of plastic, Lectum displays are much more rugged than standard glass-based EPDs. They are also thinner and lighter per square inch than their conventional EPD counterparts. And because they are EPDs, they are inherently low-power, which is extremely important in today’s increasingly mobile world.

Lectum®

Lectum uses an electrophoretic plastic frontplane and is the first flexible, glass-free display in volume production.

These high-resolution displays afford the same reading experience as with paper, including an ultra-wide viewing angle. But being completely made of plastic, Lectum displays are much more rugged than standard glass-based EPDs. They are also thinner and lighter per square inch than their conventional EPD counterparts. And because they are EPDs, they are inherently low-power, which is extremely important in today’s increasingly mobile world.

Lectum plastic displays are available in a wide range of sizes
from very small to the current maximum size of around A4.

Making displays reliable

Once you’ve made your sandwich, you might cover it in plastic wrap before putting it in your lunchbox, bag or satchel in order to protect it from drying out or to avoid the addition of unwanted “ingredients”.

The same goes for our plastic display sandwich: we use bottom and top layers of encapsulation to protect the display against humidity and ensure a high level of performance quality and reliability. Nevertheless, we are able to manufacture certain displays with a thickness as low as 475µmm.

Benefits for designers

For the first time in history, product designers can now access a production ready, truly flexible display, which can be integrated in a wide range of accessories in varied markets; from smart cards to wearables and mobile devices to signage.

Designers can choose from a range of display platforms as well as custom display solutions. Independent of the platform, all displays include the following features:

  • organic TFT active matrix, incorporating industry-leading, bi-stable EPD technology
  • COF (chip-on-film) or COP (chip-on-plastic) driver chips
  • can be combined with touch and front light solutions
  • different surface finish options available
  • evaluation kits and reference software available

Benefits for end-users

End users are already benefitting from innovative products integrating Lectum displays; from smartphone accessories providing a second screen platform to smart jewelry, which instantaneously matches your outfit.

Finding the right platform

Plastic Logic Germany has developed three separate display platforms for Lectum displays based on different EPD controllers; all EPD displays require an EPD controller and Lectum displays are no exception.

EPD controllers mainly differ in the maximum number of supported pixels and each of our platforms is, therefore, suited to a specific dimension of display. It should be noted that the number of pixels is not only dependent on the active display area but also on the pixel density (ppi).

We offer reference displays as well as evaluation kits and software for each platform. Please select one from the list below according to your requirements, or select custom design if you are interested in our bespoken display solutions.

Ultrachip
Platform

Reference display sizes:
1.1″, 1.38”, 2.1″ and 3.1″

Epson
Platform

  Reference display sizes: 

4.0” and 4.9”

Drivers-only
Platform

  Reference display sizes:
  4.7″, 10.7” and 15.4″

Custom
Design

Not sure about the display size, or about the display platforms?

All displays at a glance