E Ink’s new color screen could make PDFs and digital notebooks easier on the eyes

What happened

E Ink has introduced Kaleido 4, a new color e-paper platform that improves color range, white reflectance, and contrast. It is already available on the Hanvon M10C II notebook, which features a faster oxide backplane, improved screen-timing chip, and a reworked front light for better color reproduction. The platform also supports smoother video playback and a battery-free pen for writing.

Why it matters

Kaleido 4 could make e-paper more suitable for handling color PDFs, engineering drawings, and educational content, addressing the limitations of traditional color e-readers. This advancement may lead to broader applications in digital notebooks, e-paper tablets, and digital textbooks.

• Kaleido 4 improves color range, contrast, and white reflectance for better readability.
• The Hanvon M10C II notebook is the first device to feature Kaleido 4 with enhanced performance.
• The new oxide backplane and screen-timing chip improve navigation speed and responsiveness.
• A reworked front light and battery-free pen enhance the writing experience on e-paper.
• Kaleido 4 could expand the use of e-paper beyond books to include educational and technical content.

The bigger picture

Kaleido 4 could enhance the usability of e-paper for a wider range of applications, including educational and technical content, by improving readability and navigation. It may also influence the design of future e-readers and digital notebooks.

E Ink's Kaleido 4 represents a significant advancement in color e-paper technology, offering improved color range, contrast, and navigation for a broader range of digital content.

Technical details

• Kaleido 4 doubles the color gamut volume, reaching above 40K.
• White reflectance increases by 15%, and contrast improves by 50%.
• The oxide backplane operates at higher voltages for faster refreshes.
• A screen-timing chip improves page flip and scrolling speeds by 27%.
• A reworked front light enhances color reproduction.
• A battery-free pen with 8,192 pressure levels and micro-etched tempered glass reduces glare and parallax.

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