E Ink's new Kaleido 4 could inch us closer to the perfect color e-readerT2Covered by 1 source · first reported by Engadget at 15 Oct, 18:41 UTCE Ink's new display tech offers improved color reproduction and refresh rates.SourcesT2E Ink's new Kaleido 4 could inch us closer to the perfect color e-readerEngadget15 Oct, 18:41