According to the complaint, LEDs in backlit mobile phones sold by Conrad are infringing Seoul’s patent for LED light extraction technology. The patent covers fundamental LED chip fabrication technology to extract light efficiently, significantly enhancing brightness. Conrad is currently selling hundreds of different models of Korean, U.S. and China mobile phones.
Seoul has already warned LED backlight unit suppliers of global mobile phones to cease using products suspected of infringement. Seoul investigates mobile phones incorporating such products and will consider whatever legal enforcement is necessary if such infringement continues unabated.
Seoul has established significant LED backlight patents applicable to TVs and mobile phones for enhancing brightness, color qualities, and power consumption reduction of LEDs. In recent litigations, Seoul has asserted 68 of its patents, including five patent litigations involving LED TVs utilizing backlight technology, including against Philips TV products.
“Sensor Electronic Technology, Inc., a subsidiary of Seoul, has also patented fundamental technology for controlling multiple colors to enhance the color quality of mobile phone flash lights,” added Sam Ryu, Seoul’s Vice President of IT business. “We believe that most premium mobile phones are using this technology without authorization. This is a problem that Seoul and its related companies will seek to resolve, because if LED companies do business fairly, it is virtually impossible to produce LEDs that are applied to mobile phones without utilizing these patents.”
About Seoul Semiconductor
Seoul Semiconductor develops and commercializes LEDs for automotive, general illumination, specialty lighting, and backlighting markets. As the second-largest LED manufacturer globally excluding the captive market, Seoul Semiconductor holds more than 14,000 patents, offers a wide range of technologies, and mass produces innovative LED products such as SunLike – delivering the world’s best light quality in a next-generation LED enabling human-centric lighting optimized for circadian rhythms; WICOP – a simpler structured package-free LED which provides market leading color uniformity and cost savings at the fixture level, providing high lumen density and design flexibility; NanoDriver Series – the world’s smallest 24W DC LED drivers; Acrich, the world's first high-voltage AC-driven LED technology developed in 2005, including all AC LED-related technologies from chip to module and circuit fabrication, and nPola, a new LED product based on GaN-substrate technology that achieves more than ten times the output of conventional LEDs. UCD constitutes a high color gamut display which delivers more than 90% NTSC. For more information, please visit www.seoulsemicon.com/en.
