Spanning 1.54 to 31.2in, the displays are reflective and bi-stable, requiring energy to change the image, but no power to hold the image.
Built on a plastic substrate, the displays are more rugged than glass in the face of “extreme shock, vibration and physical impacts”, said RDS.
The internal structure includes a layer of transparent electrophoretic liquid which contains coloured particles that can be attracted to the viewing surface by an electric field.
“All the colour pigments are in each individual pixel, this helps to eliminate light attenuation, and ensures paper-like readability in all lighting conditions and viewing angles,” claimed RDS. “Colour mixing techniques can enable a colour spectrum of 32k colours.”
That said, the basic colours in Holitech’s standard versions are black, white, red and yellow. It manufactures: BW displays (0 to 50°C – or -25 to 25°C for freezer), BWY (0 to 30°C), BWR (0 to 40°C) and BWRY displays.
To pick a few examples from over 100 standard products, these sizes are available in BW, BWR or BWY: 1.54in 152×152, 7.5in 800 x 480 or 31.2in 2,560 x 1,440.
The 144dpi 8.14in 1,024 x 576 display can also be had in BWRY.
In almost all cases resolution in the displays is between 100 and 200dpi.
Holitech also makes segmented displays: “Segmented Displays are in general customised solutions. Only one or two displays are available as standard products,” it said.
RDS said that it will be handling segment and dot matrix types, and told Electronics Weekly: “RDS will hold a number of demonstration samples of each type”.
Established in 1982, RDS is based in Kent UK, and accredited to quality standards including ISO14001, ISO9001-2015 and ISO13485:2016 for the design and manufacture of medical devices.
The RDS Holitech ePaper product page is here, but has little information at the moment.
Holitech Europe’s page has more here
Photo note: displays are notoriously difficult to photograph, and sometimes non-displayed images are manipulated into the display frame for publication. Electronics Weekly asked the question, and RDS assures us that above is a real photo.
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