E Ink launches Kaleido 4 colour e-paper with video playback at up to 18fps

E Ink has launched Kaleido 4, a new generation of its colour e-paper that doubles the colour gamut volume of Kaleido 3 to more than 40K, raises white reflectance by 15%, improves contrast by 50% and plays video at up to 18fps. The first device to use it is…

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