Seoul Semiconductor

Seoul Semiconductor (KOSDAQ:046890) will participate in Light + Building 2024, the world’s largest lighting trade exhibition to be held in Frankfurt, Germany from the 3rd to the 8th of March. At the event, Seoul Semiconductor will showcase its exclusive and the world’s first LED lighting solutions of the highest efficiency and highest quality of light Spectrum.

Seoul Semiconductor is expected to unveil its ‘WICOP’ technology-based high-efficiency lighting system of 240 lumens per watt (lm/W), which is still the leading industry standard. Being the world’s first No-Wire and No-Package technology, WICOP is an ultra-small, high-efficiency LED technology designed to mount LEDs directly on a circuit board. At Light + Building, Seoul Semiconductor will exhibit applications using various wavelength bands from UV to IR/VCSEL.

In addition, Seoul Semiconductor will also feature its ‘SunLike’ technology of the highest quality of light Spectrum. For the past five years, Seoul Semiconductor carried out multiple clinical trials with various leading institutions, including Harvard University, confirming that the use of SunLike lighting can improve myopia, cell regeneration, memory, and learning abilities. An interactive booth will be operated for a hands-on experience of SunLike.

“Through the highest-efficiency products we will showcase at this exhibition, Seoul Semiconductor aims to become the best partner for all clients in every application field, including lighting, automobiles, and home appliances,” said Kim Hong min, Director of the Lighting Department.

South Korea-Seoul Semiconductor Co., Ltd. (KOSDAQ:046890), a global optical semiconductor company, announced on December 18 that it has verified through an experiment that natural spectrum lighting can promote stable growth and increase the content of effective nutrients in plants as daylighting does for plants grown in nature.

Seoul Semiconductor used both regular white LED lights and SunLike natural spectrum LED lights to grow lettuce, a vegetable commonly used as a food ingredient. The use of SunLike LED lighting resulted in an increase in lettuce yield and a significant increase in chlorogenic acid and chicoric acid, which are antioxidants and important nutrients, by more than 30% compared to the use of regular white LED lighting.

Seoul Semiconductor has been operating its own plant cultivation and research farm for the past 10 years. It studies growth and nutrient changes in a great variety of plants and nuts brought about by different light sources while measuring nutrients and conducting experiments on the effects of nutrients on cells.

In this comparative experiment, a regular white LED and a light equipped with a SunLike LED similar to a natural light spectrum – both of the same brightness – were installed separately, and the yields of lettuce and the contents of the antioxidants – chlorogenic acid and chicory acid – were compared for 3 weeks. Chlorogenic acid and chicoric acid are known for removing free radicals from the body, suppressing aging and inflammation, and preventing diseases such as aging, reduced vision, Alzheimer's, and arthritis.

The results show that the yield of lettuce grown under SunLike LED lighting increased slightly by 4% compared to regular white LED lighting, whereas chlorogenic acid and chicory acid increased by 55% and 31%, respectively. This confirms that using lighting closer to natural light in cultivation leads to higher nutrient content in plants.

Light spectrums affect plants and animals. Exposure to artificial light can interfere with frogs’ mating behavior, resulting in mutant tadpoles, and causing a 10-20% decrease in yields of sesame and other fruits. Sunflowers, for which the natural light spectrum was not used, suffered a decrease in bee visits.

Seoul Semiconductor (KOSDAQ:046890), a global optical semiconductor company, will participate in the Vehicle Displays & Interfaces Symposium 2023, organized by the Society of Information Display (SID), to be held in Detroit, USA, on September 26 and 27. During the event, the company will exhibit its LED products designed for future vehicle displays.

This exhibition will give visitors an opportunity to discover Seoul Semiconductor’s innovative LED technologies for future in-vehicle displays, such as ‘1515’, ‘Mini LED’ products for local dimming, and ‘WICOP Pixel’ microLED, in line with the evolution of automotive displays, which are increasing in size and resolution.

“1515”, an ultra-small LED for local dimming

Seoul Semiconductor will exhibit “1515”, an ultra-small LED product optimized for full-array local dimming, which divides the LED backlight into multiple zones that can be controlled independently. 1515 helps achieve a high brightness display with superb contrast ratios, as it can control light output to a very fine level on the strength of its small size and excellent performance.

“Mini-LED” with ultra-high resolution and maximized visibility

Seoul Semiconductor will also showcase Mini-LED, a product of its advanced backlight technology. Its backlight chip has been reduced to smaller than one-tenth of the typical size and mounted in large quantities on a vehicle display, enabling delicate brightness control, a high contrast ratio, and high color reproduction. Visibility has also been maximized, considering the bright in-car environment.

The world's first RGB one-chip technology, “WICOP Pixel” MicroLED Display

Seoul Semiconductor will also exhibit its WICOP Pixel MicroLED display. WICOP Pixel is the world's first full-color one-chip technology that stacks three color LEDs (RGB) vertically. This technology allows RGB LEDs to emit light as if they are a single pixel, enabling not only the uniform representation of colors but also the reproduction of a wide range of black colors – three times superior to existing microLED devices.

Michel Zwanenburg, the Executive Vice President of the IT Sales Group at Seoul Semiconductor, said, “We will continue to develop and supply LED products for future automobiles that meet our customers demand in these very exciting times for Automotive Displays.”

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