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Optoelectronics/Displays??

UV LED market boom seen in 2014

Posted: 08 Dec 2014 ?? ?Print Version ?Bookmark and Share

Keywords:UV? LEDs? PCB? UV curing? UV-A?

Based on the latest report published by TrendForce's LEDinside, the global ultraviolet (UV) market value in 2014 is seen to hit $815 million, of which the UV LED industry will have about 15 per cent market share equivalent to $122 million in market value.

"UV LED single unit prices are usually 10 times higher than average LEDs, which is why many LED manufacturers have entered the market, even though it remains a relatively niche sector," said Joanne Wu, an assistant research manager at LEDinside. Major players in the UV LED sector include Japanese manufacturers Nichia and DOWA, Korean manufacturers Seoul Semiconductor and LG Innotek, Taiwanese manufacturers Epistar, Epileds and HPLighting. Other European and U.S. manufacturers include HexaTech and Crystal IS.

There are two types of UV light sources including traditional mercury lamps and UV LED. Wu also said that compared to traditional mercury lamps, UV LEDs are mercury-free, environment-friendly, possess long lifetimes, energy efficient and have minimum heat loss.

UV LED product specs can be categorised into three different wavelengths UV-A (long UV wavelength of 320-400nm), UV-B (mid-UV wavelengths of 280-320nm) and UV-C (short UV wavelengths below 280nm). Out of these, UV-A had the highest market share of 90 per cent. Currently, UV-A market's largest application sector has been UV curing, which takes up more than 50 per cent market applications, which covers ink curing, resin curing and the emerging 3D printing sector. Additionally, UV-A has been introduced in commercial lighting to make white clothing appear brighter. Globally, PCB UV exposure systems still use conventional mercury lights.





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