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E Ink brings rich color to ePaper, but not to e-readers

TechCrunch TechCrunch 24/05/2016 Devin Coldewey

E Ink, maker of the ePaper displays found in many e-readers (maddening to have three different e prefixes in one sentence, but it’s unavoidable), announced a brand new type of reflective display that can show a huge range of colors — but the tech is only going to be deployed as signage for now.

Color reflective displays are nothing new, but none of the technologies touted over the years have been more than adequate. In person, color e-readers always seemed washed out — not good when your competition is glossy magazines and kids’ books.

E Ink’s Advanced Color ePaper produces 32,000 colors, and unlike some other electrophoretic displays, each pixel contains all the pigments necessary to make every color. That’s a major engineering challenge: the pigments must effectively mix to form a blended color, but can’t actually mix. “Many materials and waveform inventions were required to independently control the position of the multiple color pigments,” read E Ink’s press release.

That improves resolution, contrast, and general display quality — but right now the only panels E Ink has made are 20 inches diagonally and 2500×1600 pixels. The colors are still muted, too, as you can see in SlashGear’s eyes-on shots. Great for signage in stores, but at 150 pixels per inch, it wouldn’t stand up to close inspection — say, as an e-reader.

That said, early e-readers weren’t so hot resolution-wise or in terms of contrast, and they’ve come a great distance since. This is the first generation of the ACeP technology, and it’s the first color electrophoretic display with real promise.

ACeP and plenty other fancy display solutions are currently being exhibited at Display Week in San Francisco.

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