Researchers have developed the first e-ink display powered entirely by office bulbs

Researchers at Microsoft Research in Cambridge, UK have unveiled a new digital sticky note that is fully reusable and never needs charging. The tiny, lightweight laminate houses a bluetooth connection and a black-and-white e-paper display of large pixels “to create an ultra-low power display which is visible at a distance.”

The kicker? You'll never need to charge it.

By reducing energy consumption and employing a flexible solar panel on the back, the device can be powered indefinitely by the ambient light in any home or office. Depending on brightness, Grosse-Puppendahl et al say the device can update “Every 1-25 minutes and communicate to a PC or smartphone via Bluetooth Low-Energy.”

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