How will blue LEDs change the face of the world?

This year's Nobel Prize for Physics has been awarded to a group of three Japanese scientists for the invention of the blue LED ball , a world technology that must be admired and paved the way for the development of many other technologies in the future. The awards committee commented: "They have revolutionized. They have succeeded while others have failed. If the incandescent light has lit the 20th century, the 21st century will be lit with LED ball " . So how will the blue LED bulb "light the 21st century" ?

Since the 1990s, we have green and red LED bulbs which are not eligible to get white LED light bulbs. Now, we have enough RBG 3-color LED bulbs and the creation of white light is possible. Frederick Dylla, director of the American Institute of Physical Science, said: "Thanks to the blue LED ball, we have a white LED bulb and you can buy it at electric stores for family installation. Also , the white LED ball will also appear in your Blu-ray player, TV screen or computer screen ".

Without blue LED bulbs, the world will not have a blacklit LED screen for smartphones, TV screens, computers, Bluray heads or any device that uses light. You can even say, without LED bulbs, no technology masterpieces will be built. Dylla said: "Blue LED bulbs are a great testament to the application of Nobel prizes in practice."

Light up the world

White LED bulbs with low power consumption, high life expectancy will replace filament and fluorescent lamps in the near future.

Christian Wetzel, professor of physics at Rensselaer Polytechnic Institute in New York, said: "Blue LED ball, after combining with red and green LED bulbs, will create a white LED light bulb. This is The generation of lights is more fuel-efficient and has a much longer life span than the current lighting system, and in the future, white LED bulbs will light up all households in the world. ".

Not only that, cars will also use LEDs for lighting. Any lighting application on the street will have LED bulbs. Previously, LEDs only used for daytime running lights on cars but now, LEDs will also be used for nighttime headlights on cars.

LED bulbs will show its importance especially in developing countries. According to Professor Wetzel, there are still 1.2 billion people in the world who do not have access to electric light. However, by combining an LED bulb with a rechargeable battery and a solar system, people will get light all over the world without the need for a grid. The sun will charge the battery during the day and power LED bulbs at night.

In addition to lighting, LED bulbs can also be combined with sensors to detect when people are in the room and automatically turn off lights when no one is available. This is a template and a prerequisite for any smart home project.

Digital devices

LED bulbs are essential for making backlight for large screen generations, long life with less power consumption in the future.(Artwork)

In the electronics industry, LED bulbs are used to back up liquid crystal displays (LCDs) on many smartphones, laptops and TV screens. LEDs are more efficient than fluorescent lamps (CCFL) and allow for thinner and thinner screens. Professor Wetzel added: "We all want to have bigger and bigger TV screens, but no one wants to get electricity bills with huge numbers. However, the energy saving properties of LED bulbs. It is possible to solve that. "

The Blu-ray player, which is thought to be the successor of the DVD player, will be able to use blue laser LEDs to read data from the optical disc. When this system is switched from using an infrared laser (like on a DVD reader) to a blue and green LED laser, we can have disk generations with a capacity of 5 to 10 times greater than current. in.

Currently, LEDs are also being studied to develop the potential to transmit data from the internet through open spaces similar to WiFi. This technology promises fast data transfer speeds and is many times larger than WiFi. With LED bulbs, bandwidth can be increased many times by turning on and off the lights millions of times every second.

Clean and green

LED bulbs can also be used to disinfect water, creating products that provide clean, cheap, low-cost, clean water at any time.

Applications of LED lamps do not stop at the above areas. LEDs are being applied to develop water purification technology. Currently, water purifiers often use mercury lamps to kill bacteria in drinking water. However, this generation of lamps has too high power consumption. In contrast, LEDs can disinfect water directly at the nozzle and can be turned on and off when needed. This helps reduce a large amount of costs, allowing the supply of clean water at a much cheaper price."Currently, some companies have begun to adopt pasteurization technology with LED lights, but in the next few years, it will appear everywhere , " Professor Wetzel said.

LED technology also emerged while people began to pay attention to global warming. With advantages such as energy consumption efficiency, switching to LED lighting for lighting all over the world is a very meaningful job for the environment.

The above are just a few of the many applications that LED bulbs bring to people. Here, LED bulbs will appear everywhere in the world, from home, on the street, every aspect of science and technology, from small everyday problems to problems on stature. tissue like energy, clean water, . will have the appearance of LED bulbs. Indeed, the Nobel Prize for Physics 2014 contributed to our "21st century lighting".

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