Writable E-Ink Display PaperInk Brings Real-Time Handwriting to Electronic Paper

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Guangzhou-based EInkVision launched PaperInk on November 21, 2028 — the world's first full-color electronic ink display supporting real-time stylus input. The product achieves near-LCD handwriting response speed while maintaining the eye-friendly, ultra-low-power characteristics of e-paper.

PaperInk uses an improved electrophoretic display technology with 600 DPI resolution and support for 16.7 million colors. The critical breakthrough is EInkVision's proprietary high-speed electrophoretic driver chip, which compresses e-ink refresh latency from the traditional 300 milliseconds to under 5 milliseconds — approaching the human perception threshold for handwriting.

"Writing on PaperInk feels like writing on real paper," EInkVision CEO Chen Ming demonstrated at the launch event. "But everything you write syncs to the cloud instantly — searchable and editable."

The product line includes three sizes: 13.3 inches (portable office), 21.5 inches (desktop), and 32 inches (conference room). The 13.3-inch model weighs just 380 grams with a thickness of 4.2 millimeters. Its built-in battery lasts a full month on a single charge. Power consumption is near zero when displaying static content — only 0.3 watts during screen refreshes.

Pricing starts at 2,999 yuan for the 13.3-inch model, significantly below iPad Pro and Surface alternatives. Multiple schools in Shenzhen and Hangzhou have adopted PaperInk for digital classrooms, while companies including Huawei and Tencent have deployed it in conference rooms, reportedly reducing paper consumption by over 80%.

Industrial applications are expanding as well. Logistics warehouses use PaperInk as electronic shelf labels with remote content updates. Hospitals deploy it for medical records, with handwriting automatically converted to digital files. EInkVision plans to launch a flexible version, PaperInk Flex, in 2029 for curved surfaces such as car dashboards and wearables. The company has secured 300 million yuan in Series B funding from Hillhouse Capital and Sequoia China.