News Article

Seoul Semi Increases LED Brightness 5 To 10 Fold

Bulbs using the firm's new technology named “nPola,” require just a single LED

Korean firm, Seoul Semiconductor unveiled a new LED product based on a new technology on July 3rd at 'So Gong Dong Plaza Hotel' in Jong Lo Gu, to an audience of the Korean LED industry and press.

This new product, called “nPola", that Seoul Semiconductor holds the unique patented technology rights to, has been under development by the company for over 10 years. The brightness has been dramatically improved by 5 times over the conventional LED based on equivalent die surface area. The company expects further improvements will increase this to more than 10 times over existing LEDs.

                 nPola WARM  LED                                   nPola cool LED

Currently, the brightness of a power chip LED in mass production is around 100 lumens in warm white but this new product produces 500 lumens which is 5 times better. As an example, when making a LED bulb for a 60W household bulb replacement, generally, 10-20 LED packages are used, but when this new product is applied, the same brightness can be achieved with only 1-2 packages.

         Conventional LED bulb                             nPola LED bulb

Seoul Semiconductor CEO, Chung Hoon Lee, expressed strong confidence in the new product by saying "I've worked very hard for the past 20 years in this industry and it is safe to say that this new product is the culmination of 20 years of core technologies development. It is a major milestone for the LED light source."

Shuji Nakamura, who many believe as the father of the LED, was also present at this event to comment on the new technology. He is currently a professor at the University of California, Santa Barbara and an advisor to Seoul Semiconductor.

Shuji Nakamura at 'So Gong Dong Plaza Hotel'

In addition to the release of the new product, the event provided booths where attendees could experience Seoul Semiconductor's core products such as its Acrich AC LED technology, UV LEDs, white LEDs, and others.

nPola LED on PCB

The company says it will immediately begin production of this new product with sales domestically and in strategic markets abroad.

AngelTech Live III: Join us on 12 April 2021!

AngelTech Live III will be broadcast on 12 April 2021, 10am BST, rebroadcast on 14 April (10am CTT) and 16 April (10am PST) and will feature online versions of the market-leading physical events: CS International and PIC International PLUS a brand new Silicon Semiconductor International Track!

Thanks to the great diversity of the semiconductor industry, we are always chasing new markets and developing a range of exciting technologies.

2021 is no different. Over the last few months interest in deep-UV LEDs has rocketed, due to its capability to disinfect and sanitise areas and combat Covid-19. We shall consider a roadmap for this device, along with technologies for boosting its output.

We shall also look at microLEDs, a display with many wonderful attributes, identifying processes for handling the mass transfer of tiny emitters that hold the key to commercialisation of this technology.

We shall also discuss electrification of transportation, underpinned by wide bandgap power electronics and supported by blue lasers that are ideal for processing copper.

Additional areas we will cover include the development of GaN ICs, to improve the reach of power electronics; the great strides that have been made with gallium oxide; and a look at new materials, such as cubic GaN and AlScN.

Having attracted 1500 delegates over the last 2 online summits, the 3rd event promises to be even bigger and better – with 3 interactive sessions over 1 day and will once again prove to be a key event across the semiconductor and photonic integrated circuits calendar.

So make sure you sign up today and discover the latest cutting edge developments across the compound semiconductor and integrated photonics value chain.



Search the news archive

To close this popup you can press escape or click the close icon.
Register - Step 1

You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. You may also request additional information if required, before submitting your application.

Please subscribe me to:


You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in:
Live Event