The Blue LED Problem: How a Difficult Solid State Physics Obstacle Delayed LED Technology by Decades
November 11, 2021
The first LED was invented, or actually, accidentally discovered, in the fall of 1961 by engineers working at Texas Instruments. James R. Biard and Gary E. Pittman were working together on a project for the U.S. Airforce to build “low noise parametric amplifiers for X-band radar receivers,” and discovered that IR light was being emitted […]
