Press release

Seoul Semiconductor and Seoul Viosys Showcase the World’s First One Pixel Micro LED Enabling 4K Resolution TV from 42in to 220in at CES 2020

Sponsored by Businesswire

Seoul Semiconductor Co., Ltd. (KOSDAQ 046890) and Seoul Viosys Co., Ltd., leading global innovators of LED and UV LED technologies, announced the new concept display, ‘Micro Clean LED’ at CES 2020, the biggest global consumer electronics and technology show, running from January 7th through January 10th.

This press release features multimedia. View the full release here:

[Figure 1] Comparison of one micro pixel and existing signage micro LED (Graphic: Business Wire)

[Figure 1] Comparison of one micro pixel and existing signage micro LED (Graphic: Business Wire)

The new concept of Micro Clean LED, which Seoul Viosys developed, is the technology that realizes 4K resolution TV sizes from 42 inch to 220 inch with 1 RGB LED per pixel and is ready for mass production. The Micro Clean LED solutions for a smart watch display also will be demonstrated at CES 2020 to main strategic partners by appointment.

Seoul Viosys possesses the necessary technologies, from MOCVD for EPI growth of all 3 colors, RGB, to the transfer solution of small-sized micro(µ) level RGB Chip. Seoul Semiconductor also possesses the tiling technology, substrate connectivity technology, for large-screen display by preparing SMT, surface mounted technology, manufacturing process at the customer’s request in its own factory.

Furthermore, since it is developed as 1 pixel, it resolves 3 main challenges for micro LED, which are transfer technology, color mixing and individual color and intensity of light control. By resolving these 3 challenges, the cost can be reduced by 1/3, and the product reliability test is also completed.

In the LED market, the 1st wave was adoption of LED technology in mobile phone applications in 2000s. The 2nd wave was with LED TV and lighting applications in 2010s. As the 3rd wave grows to $100B market with LCD and OLED, the micro LED is expected to take a good portion of next generation display. It is also suitable for light source in VR/AR and MR market. The micro LED is the world’s only light source that can deliver 1,000 times faster response time, 30% reduction of internal and external power consumption and infinite contrast range compared to existing LCD and OLED display.

Seoul Viosys and Seoul Semiconductor already have been accumulating hundreds of patent applications and registrations for more than 10 years. Seoul Semiconductor’s patent portfolio is very well-known in the world with winning all 32 lawsuits in 7 countries in the world by using 72 patents of 14,000 patent technology in past 2 years, 4 exceptional legal cases resulted in injunctions against the sales and product recalls.

Seoul Semiconductor CEO Chung Hoon Lee said, “By not cutting my hair, I am showing my strong will to protect the intellectual property rights and pledge to fight technology hijackers to the end and reveal their greed to the world.” He also mentioned, “I was born as a son of a farmer but able to form a billion dollar company. Through research and development and patent respect activities, I believe that we can give hope to young people who challenge under difficult circumstances.”

About Seoul Semiconductor

Seoul Semiconductor is the world’s second-largest global LED manufacturer, a ranking excluding the captive market, and has more than 10,000 patents. Based on the differentiated product portfolio, Seoul Semiconductor offers a wide range of technologies, and mass produces innovative LED products for indoor and outdoor lighting, automotive, IT products, such as mobile phone, computer display and etc, and UV area. The world’s first development and mass production products are becoming the LED industry standard and leading the global market with a package-free LED, Wicop, a high-voltage AC-driven LED, Acrich, a ten times the output of conventional LED, nPola, a cutting edge ultraviolet clean technology LED, Violeds, an emitting light to all direction technology, filament LED, natural spectrum LED, SunLike, and etc. For more information, please visit

About Seoul Viosys

Seoul Viosys is a leading UV LED company that provides the widest range of UV wavelength devices and the world’s first new concept Micro LED in the world. In cooperation with related companies in US and Japan, Seoul Viosys developed EPI, FAB, UV LED in 2002, during the initial establishment time, and became the first mass production manufacturer of 200nm to 460nm(blue wavelength). In 2018, Seoul Viosys acquired Optoelectronic Next RayCan, a VCSEL solution provider, and succeeded on mass production of LED chips for full wavelength from 200nm to 1600nm. As of 2018, Seoul Viosys possesses more than 4,000 related patents. Seoul Viosys supplies competitive variety UV solutions to its global customers with strong sterilizer, UVC, skin regeneration, UVB, and plant growth promotion. Unlike an existing UV mercury lamp, there is no toxic substance but being valued as eco-friendly and health-friendly product. It is also applicable to wide variety of industrial areas such as beauty, medical appliance, water purifier, air purifier, insect trap, garden lighting and etc. For more information, please visit