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Displays Journal
Posted on January 19, 2021 by  & 

The First Full Colour Electro Wetting Display Panel is a Fact

The first production ready electro wetting display consumes only 3 watts and uses solar energy - an endless source of power! Etuplia's dedication, endurance and expertise in electro wetting have resulted this first full-colour panel. The colours are saturated and bright and meet the high standards the market demands for today.
Stacked like roof tiles
A panel consists of 6 full-colour tiles. Three rows of two full-colour tiles, in which the rows are stacked like roof tiles. Eventually a display will be made up of various panels constructed in such a way that the seams will be barely visible.
The technology
In Etulipa's electro wetting display technology, the colour displays are created by stacking three layers of cells above each other, with cyan, magenta and yellow respectively. Each layer has pixels that can be switched to an absorbing or a non-absorbing state. The whole surface area reflects the appropriate component of the light and this results in more saturated colours and better contrast than any other available colour e-paper technology. For further information see the IDTechEx report on Electronics Reshaped 2020-2040.
Never out of power
Electro wetting display full-colour panels, unlike alternative reflective technologies, can be used outdoors in all weather conditions. The energy consumption is ultra-low: only 7 watts/sqm., therefore it can work forever on solar energy. Connection to the grid becomes a thing of the past. Even better, off-grid mobile displays do not have to be replaced, because the ultra-low power consumption implies that battery solutions will never run out of power.
Electro Wetting Display technology offers many possibilities
A true innovation, electro wetting display technology is a kind of e-paper technology. Etulipa patented the technology, which it developed specially for outdoor use.
The pixels do not generate light - which consumes a lot of energy - but instead reflect sunlight, just like paper. There are no lightbulbs or LEDs involved. That makes an electro wetting display so ultra-low power that it can work completely off-grid using just a solar panel and a battery. That is ideal in circumstances where electricity is not available or expensive to apply. For instance, in big cities the wiring, pipes, and utilities below city concrete is similar to that of spaghetti, hence making it a challenge for installers to find a sweet spot to dig without interfering in other services.
In case of temporary displays, recharging the batteries, or replacing the displays is a thing of the past.
No light pollution
As with paper, lighting is usually only required during the evening; during the day the ambient light is most often sufficient to read text and see images.
An electro wetting display creates almost zero light pollution and is therefore not intrusive, unlike the more common LED displays. And when LED-displays are not allowed, an EWD can usually get a permit. This opens up new possibilities for outdoor advertising in residential areas where LED displays are prohibited
Source and top image: Etulipa
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