Seoul Viosys ranks first in the global UV LED market for six consecutive years

Optical semiconductor device specialist "Seoul Viosys" (an affiliate of Seoul Semiconductor) was ranked first in the global market share in the UV LED field in 2024 in the TrendForce 2025 report, and has maintained its leading position for six consecutive years.

Reaching the top for six consecutive years is not an accidental achievement, but a demonstration of its sustainable market dominance, which is a far-reaching achievement.

Seoul Viosys relies on its independently developed UV LED technology "Violeds" to provide innovative solutions in multiple industrial fields such as sterilization and disinfection, skin regeneration, air and water purification, and continues to lead the market development.

In addition, the company has more than 6,000 technology patents, firmly establishing its competitive advantage at the technical level.

We will take this sixth consecutive championship as an opportunity to further strengthen our leading position in the global optical semiconductor market.

Company Overview – Seoul Viosys

Seoul Viosys is a full-line solution company focusing on UV LED, next-generation 3D sensor/laser light source "VCSEL (Vertical Cavity Surface Emitting Laser)" and single pixel "WICOP Pixel" for display screens. The company was founded in 2002 and currently has the largest market share in the world in the field of UV LED. Relying on more than 30 years of optical semiconductor research experience of parent company Seoul Semiconductor, Seoul Viosys has built a full-band (200nm~1600nm) product portfolio covering ultraviolet (UV), visible light (Visible) to infrared (IR), and has more than 6,000 related technology patents, firmly occupying the global technology leadership position.

Its representative independent technology UV LED "Violeds" uses only light (without the use of harmful chemicals) to optimize the design of wavelength, angle, distance, time and light intensity, and is widely used in Sterilization and disinfection (UVC), skin regeneration (UVB), air and water purification, pest control, plant growth promotion and other industrial fields.

In addition, the company acquired RayCan in 2018, mastered the next-generation VCSEL technology used in smartphone facial recognition and car autonomous driving, and began large-scale mass production. In January 2020, the company launched a differentiated RGB single-pixel "WICOP Pixel" designed to replace the existing display market, officially entering the new market.