In the year 1962, the very first visible light LED was invented, marking a significant milestone in the development of LEDs. Over time, LEDs have advanced tremendously and have become the most suitable alternative for bulbs, neon, and light tubes. It is very likely that with the continuous development of LEDs, they will eventually replace all mentioned light sources entirely. This will lead to a brighter future for humanity, as LEDs help in saving a considerable amount of energy, money, and time. With such advantages, LED technology is bound to become the most sought-after in lighting solutions.
The evolution of LED development has been classified into three stages, starting from the advent of red LED to the arrival of Blu-ray LED and white light LED. The progress of LED technology began with the creation of red and green LEDs which are single-color LEDs. However, their application options were limited as they could not produce the original color of the object, instead, they transmitted artificial colors, which rendered their use in certain contexts futile.