Seoul Semiconductor

Semiconductor Manufacturing경기도, South Korea201-500 Employees

Seoul Semiconductor is a South Korean company that specializes in LED technology for a range of markets, including lighting, automotive, and IT backlighting. It operates globally and includes a subsidiary, Seoul Viosys, focused on MicroLED, UV, sensors, and data communications. The firm pursues a broad array of LED innovations aimed at expanding spectral control, efficiency, and integration into diverse applications. The company maintains a substantial patent portfolio and has engaged in patent litigation across multiple jurisdictions.

Based in Ansan, Gyeonggi Province, it has operated in LED technology for over 30 years and ranks among the top three players in the global opto-electronics LED market. In 2026, the firm announced that its high-voltage opto-semiconductor technology had entered mass production with several major automotive brands, with plans to expand to additional models.

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