E Ink launches next-generation color e-reader screen technology

Summarised from 2 outlets · Updated 15 Oct, 19:58 · Archive

E Ink announced Kaleido 4, an upgraded color e-paper display technology with improved color reproduction and faster refresh rates.

E Ink announced Kaleido 4, the next generation of its Kaleido color e-paper screen technology used in most color e-readers. The new display technology promises several improvements over its Kaleido 3 predecessor, including doubled color gamut volume, 15 per cent increased white reflectance, and 50 per cent improved contrast.

Kaleido 4 can produce over 4,096 colors, according to The Verge, though Engadget reports the technology can produce over 40,000 colors. Engadget also claims the refresh rate improvements mean it can display video content at 18 frames per second, a significant step forward for e-paper screens.

The Kaleido 3 technology is found in e-readers and tablets from companies including Kobo, PocketBook and Boox, while Amazon's Kindle Colorsoft uses a customised version. A key drawback of earlier Kaleido displays has been the relatively fuzzy appearance of black and white text, a problem the new technology aims to address. The Kaleido approach uses a color filter over an e-paper panel, unlike E Ink's Gallery 3 technology, which uses colored pigments but has slower refresh rates.

How it is being reported

• E Ink's new Kaleido 4 could inch us closer to the perfect color e-readerE Ink's new display tech offers improved color reproduction and refresh rates.Engadget · 15 Oct, 19:41
• E Ink upgraded the screen found in most color e-readersE Ink announced the next generation of its Kaleido color e-paper screen technology today, delivering several welcome improvements. The company's existing Kaleido 3 displays can be found in e-readers and tablets from companies like Kobo, PocketBook, and Boox, while Amazon's Kindle Colorsoft uses a customized version to improve performance. The new Kaleido 4 technology addresses […]The Verge · 15 Oct, 17:00

In this story: E Ink · Amazon · Kobo · PocketBook · Boox

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