A brilliant neglected and undermined Japanese genius does the very clever Applied Science necessary to create the first ideally “tuned” and energy efficient blue LED,
A great human story, and even more a brilliant portrait on how technology, economics, and human nature intertwine to create wondrous stories.
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P.S. Useful Red and Green LEDs were relatively easy to figure out, but blue was daunting and economically extremely valuable as with Red and Green it could produce magically energy efficient and subtly adjustable White Light