E Ink unveils Kaleido 4 color e-paper with 50% higher contrast

E Ink has announced Kaleido 4, a new color e-paper technology. It boosts white reflectance by 15%, raises contrast by 50%, and renders color content at up to 300 PPI. Devices using the panels are expected in 2027.

• White reflectance up 15%, contrast ratio up 50%
• Color content rendered at up to 300 PPI
• Panels draw power only when the image changes
• Devices with Kaleido 4 expected in 2027