Amazon Kindle Colorsoft yellow stripe defect now has a culprit

When it comes to Kindles, Amazon has not had a great week. It started with reports that new Kindle Colorsoft owners were seeing a distracting yellow band at the bottom of the display.

Soon after, it was alleged that Amazon was cancelling Colorsoft shipments. The shopping giant has acknowledged the display flaws and offered refunds and replacements for affected Colorsoft owners. "We’re making the appropriate adjustments to ensure that new devices will not experience this issue moving forward," a spokesperson told Tom's Guide. At the time, it was not revealed what might be causing the yellowing issue.

But now, we might have an idea of why the flaw appeared. Supply chain analyst Ming-Chi Kuo wrote on X that the issue has been traced to Amazon utilising a different version of a component for the Colorsoft display than the one used on the best Kindles with a monochrome screen.

Kuo wrote, "Amazon's use of a different OCA [optically clear adhesive] than that used in grayscale e-paper displays. This change was implemented to enhance the limited contrast capabilities of E Ink's Kaleido color e-paper technology. While component suppliers have developed several hardware solutions, Amazon seems to be leaning toward a software-based fix."

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