The Evolution and Advantages of LED Lighting

TLDR LEDs were developed as a more efficient alternative to incandescent bulbs, with only a small percentage of energy being converted into useful light. The breakthrough in LED technology came in 1993 with the development of a bright blue LED, which paved the way for the creation of white light LEDs. LED bulbs are more efficient, versatile, and have the potential to revolutionize display technology.

Timestamped Summary

00:00 LEDs, or light-emitting diodes, were developed as a more efficient way of producing artificial light due to the inefficiency of incandescent bulbs.
02:24 Incandescent light bulbs were inefficient and produced more heat than light, with only about 5-10% of the energy used actually being converted into useful visible light.
04:22 LEDs, or light emitting diodes, are small electronic components made from a semiconductor material that emit photons of light when an electric current passes through them, and while they were first discovered in 1907, it wasn't until 1961 that the first practical LED was developed.
06:35 The first visible light LEDs were developed independently by three different research teams in 1961 and 1962, but they emitted dim red light and were not able to produce white light.
08:44 The breakthrough in LED technology came in 1993 with the development of a bright blue LED, which was necessary to create white light LEDs.
11:00 LED bulbs have a wider range of shapes and form factors than traditional lighting, and they can also display a wide variety of colors; in addition, they are much more efficient than other types of bulbs, producing 300 lumens per watt compared to 16 lumens per watt for incandescent bulbs.
13:14 Micro-LED displays have the potential for better picture quality, including brightness, contrast, and deeper blacks than LCD or OLED televisions, and they can be transparent; although they are still new and not widely available, they are expected to become one of the biggest technologies in the next few years.
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