White LED, revolution of lighting

Application LED for production of watches (Photo: Employees)

This is a high technology of the world that our country needs to quickly join to create new breakthroughs in the global economic market economy.

White LEDs, which are products from semiconductor blue-violet (360-470 nm) semiconductors (due to GaN or InGaN semiconductor materials) activate phosphorus to emit white light, like neon lamps, but have Life expectancy is 20-100 times greater than neon lamps and the light output is up to nearly a hundred lumens / Watt. The US Department of Energy predicts that LEDs will repel previous types of light bulbs in the past, the global lighting technology in the 2020s.

Lights are not hot

White LED lamps in particular and LED lamps in general have a wide range of applications that fluorescent lamps cannot do such as car lights, street lights, mine lights, rear lights for mobile phone screens, rear lights for Liquid crystal display (LCD), digital printing . have brought national interest in many countries such as the US, Japan, China and Europe.

A common LED model
(Photo: Employee)

Another feature of LEDs is less energy consumption and no heat. Traditional light bulbs, neon lights, halogen lamps . all need 110-220 V to burn, while white LEDs need only 3-24 V to light up. Due to low energy consumption, LEDs can be used in remote areas without the need for a high-power generator. White LEDs can be used with solar cells, and most recently with fuel cells that run on a mixture of water and alcohol. White LED flashlights can be used easily when power is lost, because only a few batteries can still light the lamp.

Answers for development strategy

From an economic perspective, in the context of high-tech shortcomings, the majority of multinational companies in the world have proved their economic efficiency with different specific source technologies. The more basic the source technology is, the more applications it brings and results in super profits. One of the basic source technologies is IC semiconductor technology, which has led to scientific and technological revolution in the field of information technology, automation and precision engineering, biotechnology. . Today, the investment in microchip technology to make electronic chip products in computers, digital equipments is still very high. Therefore, if we have to give an answer to the strategy of high technology development investment for Vietnam, the main answer is LED technology in particular and semiconductor technology in general.

The superior development of semiconductor technology will lead to a new science and technology revolution in lighting, promising a new high-tech market, which is the global lighting market with LED technology. white. This is a technology that does not require a lot of investment capital such as IC semiconductor technology, a high technology of the world that our country needs to quickly join to create new breakthroughs in the economic market economy. global, to compensate for the development opportunities that have passed in the chip semiconductor market.

LED lights are everywhere

LED stands for Light Emitting Diode.White LED lights are different from the known color LEDs in our country through many colorful light bulbs: green, white, red, yellow . mounted on Christmas trees in the Christmas season, traffic display boards located near the toll booths on large roads, giant flat screens on the roofs of villas in the capital or in Ho Chi Minh City.Color displays with LED lights have also appeared in shops, streets, supermarkets, restaurants in big cities in the country.

Dr. Nguyen Chanh Khe (HCMC High-Tech Park)