Purdue University Breakthrough Could Lead to Low-Cost, Mass-Produced LEDs

The researchers at Purdue University are just full of bright ideas these days, and this weekend was no exception. Thanks to a major breakthrough, they may have overcome a major obstacle for "solid state lighting," which laymen like to call LED (light emitting diode). That obstacle? Cost. LEDs are expensive, mostly… »7/20/08 4:00pm7/20/08 4:00pm