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Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura won the Nobel Prize for inventing blue LEDs. The figure is taken from Nobel Prize Committee, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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The blue LED enabled high-efficiency white LED illumination

Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura won the Nobel Prize for inventing blue LEDs

While red and green light-emitting diodes existed by the 1960s, creating efficient blue LEDs proved difficult for three decades. In the early 1990s, three Japanese researchers developed high-quality gallium nitride crystals that emitted bright blue light. Combining blue LEDs with green and red light or phosphor coatings made energy-efficient white LED bulbs possible worldwide.

Inside of chaina led bulb (lamp)IMG 0548 — Kottakkalnet · CC BY-SA 4.0 · licence · source

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Nobel Prize Committee

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Tags: led, lighting, optics

The blue LED enabled high-efficiency white LED illumination: the short answers

Where does this come from, and can I check it?: Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura won the Nobel Prize for inventing blue LEDs. The figure is taken from Nobel Prize Committee, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.