LED pen (IMAGE)

Washington University in St. Louis

LED pen

Caption

Junyi Zhao in the McKelvey School of Engineering demonstrates using a simple ballpoint pen to write custom LEDs on paper (left). The same pens can be used to draw multicolored designs on aluminum foil (top right) and to create light up sketches (bottom right).

Credit

Courtesy of Wang lab, Washington University in St. Louis

Usage Restrictions

For editorial purposes

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.