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Hardcover and paperback books are becoming relics of a bygone era. Over the last several years, e-readers have become the preferred way to read books, magazines, or graphic novels digitally, with the best e-reader displays mimicking the look and feel of a physical book. A company called E Ink has been developing and perfecting e-reader screens for quite some time; Amazon, Kobo and Boox all use E Ink panels in their hardware!
Moving into 2027, it looks like the talented folks at E Ink will be putting out a brand-new screen: the Kaleido 4. This color e-paper platform, the manufacturer claims, will deliver a wider color gamut and enhanced clarity. Spec-wise, one of the most impressive comparisons we’ve seen is the pixels-per-inch breakdown between the Kaleido 4 and Kaleido 3 displays; the former delivers up to 330 PPI, while the latter only pushes 150 PPI.
The Kaleido 4 generation also increases white reflectance by up to 15%, and contrast by up to 50% (compared to the Kaleido 3). We’ll also see a first for the broader world of e-reader displays: a screen that manages 18 frames per second. Those of us with LCD and OLED TVs aren’t exactly jumping for joy at that figure, but it’s still a tremendous feat for e-paper.
As much as we know about the Kaleido 4 specs, the official price and release date still isn’t known
Based on what E Ink says, the Kaleido 4 aims to deliver a versatile multimedia screen that performs just as well with comic books and PowerPoint presentations as with traditional text. At this stage, it’s difficult to guess when the North American market will start seeing Kaleido 4 displays. That said, the news dropped on October 15 that E Ink and Hanvon teamed up to produce the MC10C III overseas; this will be the first e-reader to officially use a K4 panel.
The MC10C III will only be available in China, and we don’t have an official release date. We also don’t know how much the e-reader will cost; over the last several months, it’s been a safe bet that most new consumer tech hardware will cost more than it should. This is the RAM shortage era (a real “RAMpage,” one might say), but the one saving grace for e-readers is that they require far less RAM than laptops, phones, and smart TVs.
E Ink isn’t the only ePaper manufacturer, though; brands like Plastic Logic and Ynvisible also produce e-paper displays. The difference is that E Ink focuses on consumer-facing technology, while the latter seem to focus more on flexible displays and emerging tech rather than the B2C electronics sector.
