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Seoul Semiconductor Files Patent Litigation against Automotive LED Light Distributor


Seoul Semiconductor Files Patent Litigation against Automotive LED Light Distributor


ANSAN, South Korea – Seoul Semiconductor Co., Ltd. (“Seoul”) (KOSDAQ 046890), a leading global innovator of LED products and technology, announced that it has filed a patent infringement lawsuit in the United States District Court for the District of New Jersey against Onyx Enterprise Int’l Corp. (“Onyx”), a distributor of automotive components. 


Onyx operates “,” one of the largest online platforms for offering car parts and accessories, which distributes various automotive LED lights, such as, automotive headlamps, tail lights and fog lights.


In its complaint, Seoul asserts that automotive LED products being sold on “” infringe 12 patents – including Seoul’s WICOP (Wafer Level Integrated Chip On PCB) technology, a revolutionary technology co-developed with its subsidiary, Seoul Viosys Co., Ltd. 


WICOP technology is the first in the world that enables LED chips to be soldered to a PCB without lead-framesgold wires. This significantly enhances heat dissipation and fitness for LED lenses. Such innovative benefits have led to widespread applications of WICOP technology in automotive lighting, including DRL and headlamps, as well as other LED products, such as LCD backlights for TV and mobile phones, smart phone flash LEDs, and high power general lighting. 


In 2019, Seoul successfully obtained a permanent injunction judgment against the sales of a Philips brand TV product for infringement of WICOP patents in litigation filed against Fry’s Electronics in the Texas Eastern District federal court. In the same year, Seoul also filed a patent infringement lawsuit against the Factory Depot, another Philips brand TV product distributor, in the California Central District federal court. 


“Several companies’ products debed as a CSP (Chip Size Package) are copying Seoul’s patented technology. To prevent the distribution of such products, Seoul has initiated this litigation. Establishing a fair competition culture of respecting intellectual property is essential for young entrepreneurs and small businesses,” said one of Seoul’s IP department Vice Presidents.


 Comparison of Components for WICOP and CSP


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Seoul Semiconductor’s WICOP technology (Right) and CSP


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 a differentiated product portfolio, Seoul 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 displays, and other applications, as well as the UV area. The company’s 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 an LED with 10X the output of a conventional LED, nPola a cutting edge ultraviolet clean technology LED, Violeds an all direction light emitting technology, filament LED a natural spectrum LED, SunLike and more. For more information, please visit



Seoul Semiconductor Co., Ltd.

Jeonghee Kim

Tel: +82-70-4391-8311