InGaN LEDs still headlining

Abstract

Just a few years ago blue-green LEDs were an expensive curiosity with little practical application owing to their inferior price/performance. While the opto industry was making millions of low-cost longer wavelength LEDs, the blue emitters were lagging far behind. However, all that has changed and recently we were treated to an intriguing ironic twist: two of the world's opto leaders were almost coincidentally making announcements that overlapped each other's areas of interest. While Nichia was demonstrating InGaN amber LEDs, HP was gearing up for InGaN blue-green LEDs.