An interview with reflective display developer Solchroma

US-based Solchroma develops a novel reflective inks and actuators based display technology, targeting the outdoor signage market (at least as a first step).

Solchroma full-color system schematic

The company introduced its interesting technology at SID Displayweek 2021. The company's CEO, Dr. Roger Diebold was kind enough to explain the company's technology and business to E-Ink-Info.

Hello Roger, thank you for your time. Can you explain Solchroma's ePaper technology?

Solchroma creates reflective digital displays to change how we interact with the built environment and world around us. Solchroma’s technology is based on hydraulically forcing of colored liquid ink in and out of view. A backplane of actuators acts as an array of electrically-controlled pumps that push on nearby reservoirs of ink. Ink reservoirs are shielded from view by a white reflector, while simultaneously allowing passage of ink from the reservoirs behind the reflector to three sealed, viewable chambers stacked one atop the next on the viewable side.

Abu Dhabi's department of transport installed 175 E Ink bus stop displays

The Department of Transport Abu Dhabi (DoT) has installed 175 solar powered e-paper passenger information screens at bus stops across Abu Dhabi, following a successful proof of concept pilot in 2019.

E Ink signage at Abu Dhabi by Papercast

The system was designed by Papercast, who says that the project includes 100 13-inch E Ink displays and 75 13-inch double E Ink displays powered by 20W solar modules.

Plastic Logic and RoadAds to develop 32-inch flexible E Ink external vehicle displays

Plastic Logic announced a partnership with RoadAds interactive to develop mobile vehicle displays based on PL's flexible oTFT-based E Ink technology. RoadAds will use 32-inch displays as "digital billboards" on vans, trucks and buses for advertising and information.

RoadAds Plastic Logic E Ink digital signage photo

RoadAds customers can manage campaigns online, define advertising areas and conditions such as weather or time and get detailed statistics. The campaigns are transferred automatically via 4G and are delivered in real time. The displays are based on 32-inch panels and larger displays can be realized by combining several displays together. RoadAds says that larger display sizes using larger panels (up to 64-inch) are planned for the future.

Next:urban technologies deploys a new solar-powered E Ink transport system display project in Gdynia

Next:urban technologies, in cooperation with Operibus, deployed a new E Ink signage display project in the City of Gdynia, Poland. This is a bus transport system that shows real time departure, schedule plans and passenger information.

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The displays used in this project are 13.3" 1600x1200 E Ink panels. These displays operate in a wide temperature range (-30 to 70, C) and include a heating system for colder days. The whole system is powered by solar panels that are placed on the top of the bus stations.

E Ink and TCL CSoT to produce 42-inch E Ink TFT backplanes on a 8.5-Gen production line

E Ink Holdings announced a partnership with TCL's CSoT (China Star Optoelectronics) to produce 42-inch E Ink TFT backplanes at CSoT's 8.5-Gen production line. This will be the world's largest substrate E Ink TFT backplane facility.

31.2'' E Ink signage display photo

Producing the backplanes on larger substrate will enable E Ink and CSoT to increase the efficiency and reduce the production costs. The two companies did not disclose when the new display backplanes will enter production.

eVideon and E Ink Holdings to to provide hospitals with energy-efficient ePaper whiteboards displays

eVideon announced a strategic alliance with E Ink Holdings to provide hospitals with energy-efficient ePaper whiteboards and digital patient door displays.

eVideon E Ink hospital patient whiteboard photo

The companies says that the ePaper displays do not emit any unwated blue light, and will be particularly beneficial for patients who prefer sleeping in a dark environment. These displays can be powered by batteries or by power over Ethernet and so can be easy to install and maintain.

The University of Tartu in Estonia deploys E Ink signage

E Ink Holdings announced that the University of Tartu in Estonia deployed E Ink display signage at its recently opened Delta Center. The project was led by Artec Design.

University of Tartu Delta Center E Ink Displays photo

The University uses 13.3" e-paper displays to update daily lecture schedules and replaces currently used paper signage. The systems offer extremely low power requirements and wide readability.

E Ink and Innolux join forces to bring next-gen color ACeP E Ink displays to market

E Ink Holdings announced a collaboration with Taiwan-based display maker Innolux to develop large-size color (ACeP) panels. Specially, EIH will produce ACeP E Ink displays and Innolux will produce display modules and promote them to the market.

E Ink and Innolux, 28'' color epaper display

The two companies will focus on IoT and Smart City applications. Some example of target applications include public transportation signage (including metro, railway, trains and buses), in-vehicle signage and retail signage.

Santorini and Syros installs E Ink bus station signage technologies

The Greek islands of Santorini and Syros installed solar-powered E Ink bus stop signage displays, developed by Papercast and implemented by AMCO Inspired Technologies.

Santorini E Ink bus station signage, papercast

Both projects, initiated by the Greek government are part of a wider national strategy to develop intelligent transport systems to handle the increasing demand for travel with sustainable transportation. The greek islands hope to use this new technologies to optimise route planning and provide passengers with real-time trip related information.

Paperscast completes an E Ink bus-station signage trial in London

Papercast announced that it has successfully completed a solar powered e-paper bus stop display trial at bus stops on Lower Sloane Street (Stop M) and Waterloo Bridge (Stop P) in central London.

Papercast solar-powered e-paper bus station signage, London, UK

Papercast displays are based on E Ink panels and are powered exclusively from solar panels. The displays are wireless connected and can be easily installed completely ‘off-the-grid’. Transport Of London's Head of Tech & Data - Surface Transport says that Tfl is "very impressed by the advancements made, both in terms of performance and functionality".

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