Korean LED maker Seoul Semiconductor have entered a cross-licencing agreement with Tridonic Optoelectronics and their patent partners. The agreement relates to white LEDs using silicate-based phosphors.
Based in Jennersdorf, Austria, Tridonic Optoelectronics GmbH are part of the Zumtobel Group, the Austria-based lighting giant. Tridonic are an established supplier of chip-on-board LEDs and modules, and a joint venture partner with Toyoda Gosei in Lexedis Lighting
In July 2004, Toyoda Gosei acquired a share of some patents jointly owned by Tridonic Optoelectronics and its partners Leuchtstoffwerk Breitungen GmbH (Germany) and Litec GbR (Germany). The patent describes a new silicate-based phosphor used in combination with a blue LED chip to create white light.
Under the cross-licencing agreement, Seoul Semiconductor say they are now in “a very strong position” to manufacture and sell their own white LEDs using silicate system phosphors as well as to expand and accelerate related R&D activities.