Monday, April 20, 2009

Bridgestone Develops Propietary Color E-paper Device with Pen-input Capability

Bridgestone Corp developed a color electronic paper (e-paper) device that supports pen input. The device combines the "QR-LPD," the company's e-paper device using its proprietary electronic powder and granular material, with a color filter and Wacom Co Ltd's electromagnetic induction type pen input tablet.

To enable the pen input, Bridgestone accelerated the screen refresh speed of the e-paper device. It now takes only 0.8 seconds to refresh the screen, whereas the company's previous A4-size e-paper device needs 10 to 15 seconds.

Although the company did not reveal the details, it quickened the refresh speed primarily by improving drive technologies, it said. This enhanced the device's ability to follow the pen input and enabled it to display input texts and graphics smoothly.

This e-paper device features a passive matrix panel. Bridgestone exhibited the new color e-paper device at a trade show taking place in Tokyo.

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