The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s. How has this invention impacted the everyday life of human beings?
1. Blue LED completed the red-green-blue triad
Blue LED completed the red-green-blue triad, enabling white light when combined with yellow phosphor coating.
2. This made LEDs the basis of
This made LEDs the basis of modern solid-state lighting, replacing incandescent and CFL bulbs in homes and streets.
3. LED bulbs consume far less electricity
LED bulbs consume far less electricity and last much longer, reducing household bills and national energy demand.
4. Blue LEDs enabled LED-backlit LCD screens
Blue LEDs enabled LED-backlit LCD screens for televisions, monitors, smartphones and laptops, transforming everyday displays.
5. They underlie OLED and QLED display
They underlie OLED and QLED display technologies and energy-efficient automotive and smart lighting systems.
6. Under India’s UJALA scheme
Under India’s UJALA scheme, millions of LED bulbs were distributed, saving electricity and cutting carbon emissions.
7. LED lighting provides affordable solar-powered illumination
LED lighting provides affordable solar-powered illumination for off-grid rural households, expanding access to light.
8. Blue and violet LEDs also enable
Blue and violet LEDs also enable Blu-ray storage, visible-light communication and applications in agriculture and disinfection.
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